1/*
2 * tg3.c: Broadcom Tigon3 ethernet driver.
3 *
4 * Copyright (C) 2001, 2002, 2003, 2004 David S. Miller (davem@redhat.com)
5 * Copyright (C) 2001, 2002, 2003 Jeff Garzik (jgarzik@pobox.com)
6 * Copyright (C) 2004 Sun Microsystems Inc.
7 * Copyright (C) 2005-2016 Broadcom Corporation.
8 * Copyright (C) 2016-2017 Broadcom Limited.
9 * Copyright (C) 2018 Broadcom. All Rights Reserved. The term "Broadcom"
10 * refers to Broadcom Inc. and/or its subsidiaries.
11 *
12 * Firmware is:
13 * Derived from proprietary unpublished source code,
14 * Copyright (C) 2000-2016 Broadcom Corporation.
15 * Copyright (C) 2016-2017 Broadcom Ltd.
16 * Copyright (C) 2018 Broadcom. All Rights Reserved. The term "Broadcom"
17 * refers to Broadcom Inc. and/or its subsidiaries.
18 *
19 * Permission is hereby granted for the distribution of this firmware
20 * data in hexadecimal or equivalent format, provided this copyright
21 * notice is accompanying it.
22 */
23
24
25#include <linux/module.h>
26#include <linux/moduleparam.h>
27#include <linux/stringify.h>
28#include <linux/kernel.h>
29#include <linux/sched/signal.h>
30#include <linux/types.h>
31#include <linux/compiler.h>
32#include <linux/slab.h>
33#include <linux/delay.h>
34#include <linux/in.h>
35#include <linux/interrupt.h>
36#include <linux/ioport.h>
37#include <linux/pci.h>
38#include <linux/netdevice.h>
39#include <linux/etherdevice.h>
40#include <linux/skbuff.h>
41#include <linux/ethtool.h>
42#include <linux/mdio.h>
43#include <linux/mii.h>
44#include <linux/phy.h>
45#include <linux/brcmphy.h>
46#include <linux/if.h>
47#include <linux/if_vlan.h>
48#include <linux/ip.h>
49#include <linux/tcp.h>
50#include <linux/workqueue.h>
51#include <linux/prefetch.h>
52#include <linux/dma-mapping.h>
53#include <linux/firmware.h>
54#include <linux/ssb/ssb_driver_gige.h>
55#include <linux/hwmon.h>
56#include <linux/hwmon-sysfs.h>
57#include <linux/crc32.h>
58#include <linux/dmi.h>
59
60#include <net/checksum.h>
61#include <net/gso.h>
62#include <net/ip.h>
63
64#include <linux/io.h>
65#include <asm/byteorder.h>
66#include <linux/uaccess.h>
67
68#include <uapi/linux/net_tstamp.h>
69#include <linux/ptp_clock_kernel.h>
70
71#define BAR_0 0
72#define BAR_2 2
73
74#include "tg3.h"
75
76/* Functions & macros to verify TG3_FLAGS types */
77
78static inline int _tg3_flag(enum TG3_FLAGS flag, unsigned long *bits)
79{
80 return test_bit(flag, bits);
81}
82
83static inline void _tg3_flag_set(enum TG3_FLAGS flag, unsigned long *bits)
84{
85 set_bit(nr: flag, addr: bits);
86}
87
88static inline void _tg3_flag_clear(enum TG3_FLAGS flag, unsigned long *bits)
89{
90 clear_bit(nr: flag, addr: bits);
91}
92
93#define tg3_flag(tp, flag) \
94 _tg3_flag(TG3_FLAG_##flag, (tp)->tg3_flags)
95#define tg3_flag_set(tp, flag) \
96 _tg3_flag_set(TG3_FLAG_##flag, (tp)->tg3_flags)
97#define tg3_flag_clear(tp, flag) \
98 _tg3_flag_clear(TG3_FLAG_##flag, (tp)->tg3_flags)
99
100#define DRV_MODULE_NAME "tg3"
101/* DO NOT UPDATE TG3_*_NUM defines */
102#define TG3_MAJ_NUM 3
103#define TG3_MIN_NUM 137
104
105#define RESET_KIND_SHUTDOWN 0
106#define RESET_KIND_INIT 1
107#define RESET_KIND_SUSPEND 2
108
109#define TG3_DEF_RX_MODE 0
110#define TG3_DEF_TX_MODE 0
111#define TG3_DEF_MSG_ENABLE \
112 (NETIF_MSG_DRV | \
113 NETIF_MSG_PROBE | \
114 NETIF_MSG_LINK | \
115 NETIF_MSG_TIMER | \
116 NETIF_MSG_IFDOWN | \
117 NETIF_MSG_IFUP | \
118 NETIF_MSG_RX_ERR | \
119 NETIF_MSG_TX_ERR)
120
121#define TG3_GRC_LCLCTL_PWRSW_DELAY 100
122
123/* length of time before we decide the hardware is borked,
124 * and dev->tx_timeout() should be called to fix the problem
125 */
126
127#define TG3_TX_TIMEOUT (5 * HZ)
128
129/* hardware minimum and maximum for a single frame's data payload */
130#define TG3_MIN_MTU ETH_ZLEN
131#define TG3_MAX_MTU(tp) \
132 (tg3_flag(tp, JUMBO_CAPABLE) ? 9000 : 1500)
133
134/* These numbers seem to be hard coded in the NIC firmware somehow.
135 * You can't change the ring sizes, but you can change where you place
136 * them in the NIC onboard memory.
137 */
138#define TG3_RX_STD_RING_SIZE(tp) \
139 (tg3_flag(tp, LRG_PROD_RING_CAP) ? \
140 TG3_RX_STD_MAX_SIZE_5717 : TG3_RX_STD_MAX_SIZE_5700)
141#define TG3_DEF_RX_RING_PENDING 200
142#define TG3_RX_JMB_RING_SIZE(tp) \
143 (tg3_flag(tp, LRG_PROD_RING_CAP) ? \
144 TG3_RX_JMB_MAX_SIZE_5717 : TG3_RX_JMB_MAX_SIZE_5700)
145#define TG3_DEF_RX_JUMBO_RING_PENDING 100
146
147/* Do not place this n-ring entries value into the tp struct itself,
148 * we really want to expose these constants to GCC so that modulo et
149 * al. operations are done with shifts and masks instead of with
150 * hw multiply/modulo instructions. Another solution would be to
151 * replace things like '% foo' with '& (foo - 1)'.
152 */
153
154#define TG3_TX_RING_SIZE 512
155#define TG3_DEF_TX_RING_PENDING (TG3_TX_RING_SIZE - 1)
156
157#define TG3_RX_STD_RING_BYTES(tp) \
158 (sizeof(struct tg3_rx_buffer_desc) * TG3_RX_STD_RING_SIZE(tp))
159#define TG3_RX_JMB_RING_BYTES(tp) \
160 (sizeof(struct tg3_ext_rx_buffer_desc) * TG3_RX_JMB_RING_SIZE(tp))
161#define TG3_RX_RCB_RING_BYTES(tp) \
162 (sizeof(struct tg3_rx_buffer_desc) * (tp->rx_ret_ring_mask + 1))
163#define TG3_TX_RING_BYTES (sizeof(struct tg3_tx_buffer_desc) * \
164 TG3_TX_RING_SIZE)
165#define NEXT_TX(N) (((N) + 1) & (TG3_TX_RING_SIZE - 1))
166
167#define TG3_DMA_BYTE_ENAB 64
168
169#define TG3_RX_STD_DMA_SZ 1536
170#define TG3_RX_JMB_DMA_SZ 9046
171
172#define TG3_RX_DMA_TO_MAP_SZ(x) ((x) + TG3_DMA_BYTE_ENAB)
173
174#define TG3_RX_STD_MAP_SZ TG3_RX_DMA_TO_MAP_SZ(TG3_RX_STD_DMA_SZ)
175#define TG3_RX_JMB_MAP_SZ TG3_RX_DMA_TO_MAP_SZ(TG3_RX_JMB_DMA_SZ)
176
177#define TG3_RX_STD_BUFF_RING_SIZE(tp) \
178 (sizeof(struct ring_info) * TG3_RX_STD_RING_SIZE(tp))
179
180#define TG3_RX_JMB_BUFF_RING_SIZE(tp) \
181 (sizeof(struct ring_info) * TG3_RX_JMB_RING_SIZE(tp))
182
183/* Due to a hardware bug, the 5701 can only DMA to memory addresses
184 * that are at least dword aligned when used in PCIX mode. The driver
185 * works around this bug by double copying the packet. This workaround
186 * is built into the normal double copy length check for efficiency.
187 *
188 * However, the double copy is only necessary on those architectures
189 * where unaligned memory accesses are inefficient. For those architectures
190 * where unaligned memory accesses incur little penalty, we can reintegrate
191 * the 5701 in the normal rx path. Doing so saves a device structure
192 * dereference by hardcoding the double copy threshold in place.
193 */
194#define TG3_RX_COPY_THRESHOLD 256
195#if NET_IP_ALIGN == 0 || defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
196 #define TG3_RX_COPY_THRESH(tp) TG3_RX_COPY_THRESHOLD
197#else
198 #define TG3_RX_COPY_THRESH(tp) ((tp)->rx_copy_thresh)
199#endif
200
201#if (NET_IP_ALIGN != 0)
202#define TG3_RX_OFFSET(tp) ((tp)->rx_offset)
203#else
204#define TG3_RX_OFFSET(tp) (NET_SKB_PAD)
205#endif
206
207/* minimum number of free TX descriptors required to wake up TX process */
208#define TG3_TX_WAKEUP_THRESH(tnapi) ((tnapi)->tx_pending / 4)
209#define TG3_TX_BD_DMA_MAX_2K 2048
210#define TG3_TX_BD_DMA_MAX_4K 4096
211
212#define TG3_RAW_IP_ALIGN 2
213
214#define TG3_MAX_UCAST_ADDR(tp) (tg3_flag((tp), ENABLE_ASF) ? 2 : 3)
215#define TG3_UCAST_ADDR_IDX(tp) (tg3_flag((tp), ENABLE_ASF) ? 2 : 1)
216
217#define TG3_FW_UPDATE_TIMEOUT_SEC 5
218#define TG3_FW_UPDATE_FREQ_SEC (TG3_FW_UPDATE_TIMEOUT_SEC / 2)
219
220#define FIRMWARE_TG3 "tigon/tg3.bin"
221#define FIRMWARE_TG357766 "tigon/tg357766.bin"
222#define FIRMWARE_TG3TSO "tigon/tg3_tso.bin"
223#define FIRMWARE_TG3TSO5 "tigon/tg3_tso5.bin"
224
225MODULE_AUTHOR("David S. Miller <davem@redhat.com> and Jeff Garzik <jgarzik@pobox.com>");
226MODULE_DESCRIPTION("Broadcom Tigon3 ethernet driver");
227MODULE_LICENSE("GPL");
228MODULE_FIRMWARE(FIRMWARE_TG3);
229MODULE_FIRMWARE(FIRMWARE_TG357766);
230MODULE_FIRMWARE(FIRMWARE_TG3TSO);
231MODULE_FIRMWARE(FIRMWARE_TG3TSO5);
232
233static int tg3_debug = -1; /* -1 == use TG3_DEF_MSG_ENABLE as value */
234module_param(tg3_debug, int, 0);
235MODULE_PARM_DESC(tg3_debug, "Tigon3 bitmapped debugging message enable value");
236
237#define TG3_DRV_DATA_FLAG_10_100_ONLY 0x0001
238#define TG3_DRV_DATA_FLAG_5705_10_100 0x0002
239
240static const struct pci_device_id tg3_pci_tbl[] = {
241 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5700)},
242 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5701)},
243 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702)},
244 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5703)},
245 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5704)},
246 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702FE)},
247 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705)},
248 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705_2)},
249 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705M)},
250 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705M_2)},
251 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702X)},
252 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5703X)},
253 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5704S)},
254 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702A3)},
255 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5703A3)},
256 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5782)},
257 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5788)},
258 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5789)},
259 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5901),
260 .driver_data = TG3_DRV_DATA_FLAG_10_100_ONLY |
261 TG3_DRV_DATA_FLAG_5705_10_100},
262 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5901_2),
263 .driver_data = TG3_DRV_DATA_FLAG_10_100_ONLY |
264 TG3_DRV_DATA_FLAG_5705_10_100},
265 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5704S_2)},
266 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705F),
267 .driver_data = TG3_DRV_DATA_FLAG_10_100_ONLY |
268 TG3_DRV_DATA_FLAG_5705_10_100},
269 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5721)},
270 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5722)},
271 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5750)},
272 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5751)},
273 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5751M)},
274 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5751F),
275 .driver_data = TG3_DRV_DATA_FLAG_10_100_ONLY},
276 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5752)},
277 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5752M)},
278 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5753)},
279 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5753M)},
280 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5753F),
281 .driver_data = TG3_DRV_DATA_FLAG_10_100_ONLY},
282 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5754)},
283 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5754M)},
284 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5755)},
285 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5755M)},
286 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5756)},
287 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5786)},
288 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5787)},
289 {PCI_DEVICE_SUB(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5787M,
290 PCI_VENDOR_ID_LENOVO,
291 TG3PCI_SUBDEVICE_ID_LENOVO_5787M),
292 .driver_data = TG3_DRV_DATA_FLAG_10_100_ONLY},
293 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5787M)},
294 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5787F),
295 .driver_data = TG3_DRV_DATA_FLAG_10_100_ONLY},
296 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5714)},
297 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5714S)},
298 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5715)},
299 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5715S)},
300 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5780)},
301 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5780S)},
302 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5781)},
303 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5906)},
304 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5906M)},
305 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5784)},
306 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5764)},
307 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5723)},
308 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5761)},
309 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5761E)},
310 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5761S)},
311 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5761SE)},
312 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5785_G)},
313 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5785_F)},
314 {PCI_DEVICE_SUB(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57780,
315 PCI_VENDOR_ID_AI, TG3PCI_SUBDEVICE_ID_ACER_57780_A),
316 .driver_data = TG3_DRV_DATA_FLAG_10_100_ONLY},
317 {PCI_DEVICE_SUB(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57780,
318 PCI_VENDOR_ID_AI, TG3PCI_SUBDEVICE_ID_ACER_57780_B),
319 .driver_data = TG3_DRV_DATA_FLAG_10_100_ONLY},
320 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57780)},
321 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57760)},
322 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57790),
323 .driver_data = TG3_DRV_DATA_FLAG_10_100_ONLY},
324 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57788)},
325 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5717)},
326 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5717_C)},
327 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5718)},
328 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57781)},
329 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57785)},
330 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57761)},
331 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57765)},
332 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57791),
333 .driver_data = TG3_DRV_DATA_FLAG_10_100_ONLY},
334 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57795),
335 .driver_data = TG3_DRV_DATA_FLAG_10_100_ONLY},
336 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5719)},
337 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5720)},
338 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57762)},
339 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57766)},
340 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5762)},
341 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5725)},
342 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5727)},
343 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57764)},
344 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57767)},
345 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57787)},
346 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57782)},
347 {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57786)},
348 {PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_9DXX)},
349 {PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_9MXX)},
350 {PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC1000)},
351 {PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC1001)},
352 {PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC1003)},
353 {PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC9100)},
354 {PCI_DEVICE(PCI_VENDOR_ID_APPLE, PCI_DEVICE_ID_APPLE_TIGON3)},
355 {PCI_DEVICE(0x10cf, 0x11a2)}, /* Fujitsu 1000base-SX with BCM5703SKHB */
356 {}
357};
358
359MODULE_DEVICE_TABLE(pci, tg3_pci_tbl);
360
361static const struct {
362 const char string[ETH_GSTRING_LEN];
363} ethtool_stats_keys[] = {
364 { "rx_octets" },
365 { .string: "rx_fragments" },
366 { .string: "rx_ucast_packets" },
367 { .string: "rx_mcast_packets" },
368 { .string: "rx_bcast_packets" },
369 { .string: "rx_fcs_errors" },
370 { .string: "rx_align_errors" },
371 { .string: "rx_xon_pause_rcvd" },
372 { .string: "rx_xoff_pause_rcvd" },
373 { .string: "rx_mac_ctrl_rcvd" },
374 { .string: "rx_xoff_entered" },
375 { .string: "rx_frame_too_long_errors" },
376 { .string: "rx_jabbers" },
377 { .string: "rx_undersize_packets" },
378 { .string: "rx_in_length_errors" },
379 { .string: "rx_out_length_errors" },
380 { .string: "rx_64_or_less_octet_packets" },
381 { .string: "rx_65_to_127_octet_packets" },
382 { .string: "rx_128_to_255_octet_packets" },
383 { .string: "rx_256_to_511_octet_packets" },
384 { .string: "rx_512_to_1023_octet_packets" },
385 { .string: "rx_1024_to_1522_octet_packets" },
386 { .string: "rx_1523_to_2047_octet_packets" },
387 { .string: "rx_2048_to_4095_octet_packets" },
388 { .string: "rx_4096_to_8191_octet_packets" },
389 { .string: "rx_8192_to_9022_octet_packets" },
390
391 { .string: "tx_octets" },
392 { .string: "tx_collisions" },
393
394 { .string: "tx_xon_sent" },
395 { .string: "tx_xoff_sent" },
396 { .string: "tx_flow_control" },
397 { .string: "tx_mac_errors" },
398 { .string: "tx_single_collisions" },
399 { .string: "tx_mult_collisions" },
400 { .string: "tx_deferred" },
401 { .string: "tx_excessive_collisions" },
402 { .string: "tx_late_collisions" },
403 { .string: "tx_collide_2times" },
404 { .string: "tx_collide_3times" },
405 { .string: "tx_collide_4times" },
406 { .string: "tx_collide_5times" },
407 { .string: "tx_collide_6times" },
408 { .string: "tx_collide_7times" },
409 { .string: "tx_collide_8times" },
410 { .string: "tx_collide_9times" },
411 { .string: "tx_collide_10times" },
412 { .string: "tx_collide_11times" },
413 { .string: "tx_collide_12times" },
414 { .string: "tx_collide_13times" },
415 { .string: "tx_collide_14times" },
416 { .string: "tx_collide_15times" },
417 { .string: "tx_ucast_packets" },
418 { .string: "tx_mcast_packets" },
419 { .string: "tx_bcast_packets" },
420 { .string: "tx_carrier_sense_errors" },
421 { .string: "tx_discards" },
422 { .string: "tx_errors" },
423
424 { .string: "dma_writeq_full" },
425 { .string: "dma_write_prioq_full" },
426 { .string: "rxbds_empty" },
427 { .string: "rx_discards" },
428 { .string: "rx_errors" },
429 { .string: "rx_threshold_hit" },
430
431 { .string: "dma_readq_full" },
432 { .string: "dma_read_prioq_full" },
433 { .string: "tx_comp_queue_full" },
434
435 { .string: "ring_set_send_prod_index" },
436 { .string: "ring_status_update" },
437 { .string: "nic_irqs" },
438 { .string: "nic_avoided_irqs" },
439 { .string: "nic_tx_threshold_hit" },
440
441 { .string: "mbuf_lwm_thresh_hit" },
442};
443
444#define TG3_NUM_STATS ARRAY_SIZE(ethtool_stats_keys)
445#define TG3_NVRAM_TEST 0
446#define TG3_LINK_TEST 1
447#define TG3_REGISTER_TEST 2
448#define TG3_MEMORY_TEST 3
449#define TG3_MAC_LOOPB_TEST 4
450#define TG3_PHY_LOOPB_TEST 5
451#define TG3_EXT_LOOPB_TEST 6
452#define TG3_INTERRUPT_TEST 7
453
454
455static const struct {
456 const char string[ETH_GSTRING_LEN];
457} ethtool_test_keys[] = {
458 [TG3_NVRAM_TEST] = { "nvram test (online) " },
459 [TG3_LINK_TEST] = { .string: "link test (online) " },
460 [TG3_REGISTER_TEST] = { .string: "register test (offline)" },
461 [TG3_MEMORY_TEST] = { .string: "memory test (offline)" },
462 [TG3_MAC_LOOPB_TEST] = { .string: "mac loopback test (offline)" },
463 [TG3_PHY_LOOPB_TEST] = { .string: "phy loopback test (offline)" },
464 [TG3_EXT_LOOPB_TEST] = { .string: "ext loopback test (offline)" },
465 [TG3_INTERRUPT_TEST] = { .string: "interrupt test (offline)" },
466};
467
468#define TG3_NUM_TEST ARRAY_SIZE(ethtool_test_keys)
469
470
471static void tg3_write32(struct tg3 *tp, u32 off, u32 val)
472{
473 writel(val, addr: tp->regs + off);
474}
475
476static u32 tg3_read32(struct tg3 *tp, u32 off)
477{
478 return readl(addr: tp->regs + off);
479}
480
481static void tg3_ape_write32(struct tg3 *tp, u32 off, u32 val)
482{
483 writel(val, addr: tp->aperegs + off);
484}
485
486static u32 tg3_ape_read32(struct tg3 *tp, u32 off)
487{
488 return readl(addr: tp->aperegs + off);
489}
490
491static void tg3_write_indirect_reg32(struct tg3 *tp, u32 off, u32 val)
492{
493 unsigned long flags;
494
495 spin_lock_irqsave(&tp->indirect_lock, flags);
496 pci_write_config_dword(dev: tp->pdev, TG3PCI_REG_BASE_ADDR, val: off);
497 pci_write_config_dword(dev: tp->pdev, TG3PCI_REG_DATA, val);
498 spin_unlock_irqrestore(lock: &tp->indirect_lock, flags);
499}
500
501static void tg3_write_flush_reg32(struct tg3 *tp, u32 off, u32 val)
502{
503 writel(val, addr: tp->regs + off);
504 readl(addr: tp->regs + off);
505}
506
507static u32 tg3_read_indirect_reg32(struct tg3 *tp, u32 off)
508{
509 unsigned long flags;
510 u32 val;
511
512 spin_lock_irqsave(&tp->indirect_lock, flags);
513 pci_write_config_dword(dev: tp->pdev, TG3PCI_REG_BASE_ADDR, val: off);
514 pci_read_config_dword(dev: tp->pdev, TG3PCI_REG_DATA, val: &val);
515 spin_unlock_irqrestore(lock: &tp->indirect_lock, flags);
516 return val;
517}
518
519static void tg3_write_indirect_mbox(struct tg3 *tp, u32 off, u32 val)
520{
521 unsigned long flags;
522
523 if (off == (MAILBOX_RCVRET_CON_IDX_0 + TG3_64BIT_REG_LOW)) {
524 pci_write_config_dword(dev: tp->pdev, TG3PCI_RCV_RET_RING_CON_IDX +
525 TG3_64BIT_REG_LOW, val);
526 return;
527 }
528 if (off == TG3_RX_STD_PROD_IDX_REG) {
529 pci_write_config_dword(dev: tp->pdev, TG3PCI_STD_RING_PROD_IDX +
530 TG3_64BIT_REG_LOW, val);
531 return;
532 }
533
534 spin_lock_irqsave(&tp->indirect_lock, flags);
535 pci_write_config_dword(dev: tp->pdev, TG3PCI_REG_BASE_ADDR, val: off + 0x5600);
536 pci_write_config_dword(dev: tp->pdev, TG3PCI_REG_DATA, val);
537 spin_unlock_irqrestore(lock: &tp->indirect_lock, flags);
538
539 /* In indirect mode when disabling interrupts, we also need
540 * to clear the interrupt bit in the GRC local ctrl register.
541 */
542 if ((off == (MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW)) &&
543 (val == 0x1)) {
544 pci_write_config_dword(dev: tp->pdev, TG3PCI_MISC_LOCAL_CTRL,
545 val: tp->grc_local_ctrl|GRC_LCLCTRL_CLEARINT);
546 }
547}
548
549static u32 tg3_read_indirect_mbox(struct tg3 *tp, u32 off)
550{
551 unsigned long flags;
552 u32 val;
553
554 spin_lock_irqsave(&tp->indirect_lock, flags);
555 pci_write_config_dword(dev: tp->pdev, TG3PCI_REG_BASE_ADDR, val: off + 0x5600);
556 pci_read_config_dword(dev: tp->pdev, TG3PCI_REG_DATA, val: &val);
557 spin_unlock_irqrestore(lock: &tp->indirect_lock, flags);
558 return val;
559}
560
561/* usec_wait specifies the wait time in usec when writing to certain registers
562 * where it is unsafe to read back the register without some delay.
563 * GRC_LOCAL_CTRL is one example if the GPIOs are toggled to switch power.
564 * TG3PCI_CLOCK_CTRL is another example if the clock frequencies are changed.
565 */
566static void _tw32_flush(struct tg3 *tp, u32 off, u32 val, u32 usec_wait)
567{
568 if (tg3_flag(tp, PCIX_TARGET_HWBUG) || tg3_flag(tp, ICH_WORKAROUND))
569 /* Non-posted methods */
570 tp->write32(tp, off, val);
571 else {
572 /* Posted method */
573 tg3_write32(tp, off, val);
574 if (usec_wait)
575 udelay(usec: usec_wait);
576 tp->read32(tp, off);
577 }
578 /* Wait again after the read for the posted method to guarantee that
579 * the wait time is met.
580 */
581 if (usec_wait)
582 udelay(usec: usec_wait);
583}
584
585static inline void tw32_mailbox_flush(struct tg3 *tp, u32 off, u32 val)
586{
587 tp->write32_mbox(tp, off, val);
588 if (tg3_flag(tp, FLUSH_POSTED_WRITES) ||
589 (!tg3_flag(tp, MBOX_WRITE_REORDER) &&
590 !tg3_flag(tp, ICH_WORKAROUND)))
591 tp->read32_mbox(tp, off);
592}
593
594static void tg3_write32_tx_mbox(struct tg3 *tp, u32 off, u32 val)
595{
596 void __iomem *mbox = tp->regs + off;
597 writel(val, addr: mbox);
598 if (tg3_flag(tp, TXD_MBOX_HWBUG))
599 writel(val, addr: mbox);
600 if (tg3_flag(tp, MBOX_WRITE_REORDER) ||
601 tg3_flag(tp, FLUSH_POSTED_WRITES))
602 readl(addr: mbox);
603}
604
605static u32 tg3_read32_mbox_5906(struct tg3 *tp, u32 off)
606{
607 return readl(addr: tp->regs + off + GRCMBOX_BASE);
608}
609
610static void tg3_write32_mbox_5906(struct tg3 *tp, u32 off, u32 val)
611{
612 writel(val, addr: tp->regs + off + GRCMBOX_BASE);
613}
614
615#define tw32_mailbox(reg, val) tp->write32_mbox(tp, reg, val)
616#define tw32_mailbox_f(reg, val) tw32_mailbox_flush(tp, (reg), (val))
617#define tw32_rx_mbox(reg, val) tp->write32_rx_mbox(tp, reg, val)
618#define tw32_tx_mbox(reg, val) tp->write32_tx_mbox(tp, reg, val)
619#define tr32_mailbox(reg) tp->read32_mbox(tp, reg)
620
621#define tw32(reg, val) tp->write32(tp, reg, val)
622#define tw32_f(reg, val) _tw32_flush(tp, (reg), (val), 0)
623#define tw32_wait_f(reg, val, us) _tw32_flush(tp, (reg), (val), (us))
624#define tr32(reg) tp->read32(tp, reg)
625
626static void tg3_write_mem(struct tg3 *tp, u32 off, u32 val)
627{
628 unsigned long flags;
629
630 if (tg3_asic_rev(tp) == ASIC_REV_5906 &&
631 (off >= NIC_SRAM_STATS_BLK) && (off < NIC_SRAM_TX_BUFFER_DESC))
632 return;
633
634 spin_lock_irqsave(&tp->indirect_lock, flags);
635 if (tg3_flag(tp, SRAM_USE_CONFIG)) {
636 pci_write_config_dword(dev: tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, val: off);
637 pci_write_config_dword(dev: tp->pdev, TG3PCI_MEM_WIN_DATA, val);
638
639 /* Always leave this as zero. */
640 pci_write_config_dword(dev: tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, val: 0);
641 } else {
642 tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, off);
643 tw32_f(TG3PCI_MEM_WIN_DATA, val);
644
645 /* Always leave this as zero. */
646 tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, 0);
647 }
648 spin_unlock_irqrestore(lock: &tp->indirect_lock, flags);
649}
650
651static void tg3_read_mem(struct tg3 *tp, u32 off, u32 *val)
652{
653 unsigned long flags;
654
655 if (tg3_asic_rev(tp) == ASIC_REV_5906 &&
656 (off >= NIC_SRAM_STATS_BLK) && (off < NIC_SRAM_TX_BUFFER_DESC)) {
657 *val = 0;
658 return;
659 }
660
661 spin_lock_irqsave(&tp->indirect_lock, flags);
662 if (tg3_flag(tp, SRAM_USE_CONFIG)) {
663 pci_write_config_dword(dev: tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, val: off);
664 pci_read_config_dword(dev: tp->pdev, TG3PCI_MEM_WIN_DATA, val);
665
666 /* Always leave this as zero. */
667 pci_write_config_dword(dev: tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, val: 0);
668 } else {
669 tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, off);
670 *val = tr32(TG3PCI_MEM_WIN_DATA);
671
672 /* Always leave this as zero. */
673 tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, 0);
674 }
675 spin_unlock_irqrestore(lock: &tp->indirect_lock, flags);
676}
677
678static void tg3_ape_lock_init(struct tg3 *tp)
679{
680 int i;
681 u32 regbase, bit;
682
683 if (tg3_asic_rev(tp) == ASIC_REV_5761)
684 regbase = TG3_APE_LOCK_GRANT;
685 else
686 regbase = TG3_APE_PER_LOCK_GRANT;
687
688 /* Make sure the driver hasn't any stale locks. */
689 for (i = TG3_APE_LOCK_PHY0; i <= TG3_APE_LOCK_GPIO; i++) {
690 switch (i) {
691 case TG3_APE_LOCK_PHY0:
692 case TG3_APE_LOCK_PHY1:
693 case TG3_APE_LOCK_PHY2:
694 case TG3_APE_LOCK_PHY3:
695 bit = APE_LOCK_GRANT_DRIVER;
696 break;
697 default:
698 if (!tp->pci_fn)
699 bit = APE_LOCK_GRANT_DRIVER;
700 else
701 bit = 1 << tp->pci_fn;
702 }
703 tg3_ape_write32(tp, off: regbase + 4 * i, val: bit);
704 }
705
706}
707
708static int tg3_ape_lock(struct tg3 *tp, int locknum)
709{
710 int i, off;
711 int ret = 0;
712 u32 status, req, gnt, bit;
713
714 if (!tg3_flag(tp, ENABLE_APE))
715 return 0;
716
717 switch (locknum) {
718 case TG3_APE_LOCK_GPIO:
719 if (tg3_asic_rev(tp) == ASIC_REV_5761)
720 return 0;
721 fallthrough;
722 case TG3_APE_LOCK_GRC:
723 case TG3_APE_LOCK_MEM:
724 if (!tp->pci_fn)
725 bit = APE_LOCK_REQ_DRIVER;
726 else
727 bit = 1 << tp->pci_fn;
728 break;
729 case TG3_APE_LOCK_PHY0:
730 case TG3_APE_LOCK_PHY1:
731 case TG3_APE_LOCK_PHY2:
732 case TG3_APE_LOCK_PHY3:
733 bit = APE_LOCK_REQ_DRIVER;
734 break;
735 default:
736 return -EINVAL;
737 }
738
739 if (tg3_asic_rev(tp) == ASIC_REV_5761) {
740 req = TG3_APE_LOCK_REQ;
741 gnt = TG3_APE_LOCK_GRANT;
742 } else {
743 req = TG3_APE_PER_LOCK_REQ;
744 gnt = TG3_APE_PER_LOCK_GRANT;
745 }
746
747 off = 4 * locknum;
748
749 tg3_ape_write32(tp, off: req + off, val: bit);
750
751 /* Wait for up to 1 millisecond to acquire lock. */
752 for (i = 0; i < 100; i++) {
753 status = tg3_ape_read32(tp, off: gnt + off);
754 if (status == bit)
755 break;
756 if (pci_channel_offline(pdev: tp->pdev))
757 break;
758
759 udelay(usec: 10);
760 }
761
762 if (status != bit) {
763 /* Revoke the lock request. */
764 tg3_ape_write32(tp, off: gnt + off, val: bit);
765 ret = -EBUSY;
766 }
767
768 return ret;
769}
770
771static void tg3_ape_unlock(struct tg3 *tp, int locknum)
772{
773 u32 gnt, bit;
774
775 if (!tg3_flag(tp, ENABLE_APE))
776 return;
777
778 switch (locknum) {
779 case TG3_APE_LOCK_GPIO:
780 if (tg3_asic_rev(tp) == ASIC_REV_5761)
781 return;
782 fallthrough;
783 case TG3_APE_LOCK_GRC:
784 case TG3_APE_LOCK_MEM:
785 if (!tp->pci_fn)
786 bit = APE_LOCK_GRANT_DRIVER;
787 else
788 bit = 1 << tp->pci_fn;
789 break;
790 case TG3_APE_LOCK_PHY0:
791 case TG3_APE_LOCK_PHY1:
792 case TG3_APE_LOCK_PHY2:
793 case TG3_APE_LOCK_PHY3:
794 bit = APE_LOCK_GRANT_DRIVER;
795 break;
796 default:
797 return;
798 }
799
800 if (tg3_asic_rev(tp) == ASIC_REV_5761)
801 gnt = TG3_APE_LOCK_GRANT;
802 else
803 gnt = TG3_APE_PER_LOCK_GRANT;
804
805 tg3_ape_write32(tp, off: gnt + 4 * locknum, val: bit);
806}
807
808static int tg3_ape_event_lock(struct tg3 *tp, u32 timeout_us)
809{
810 u32 apedata;
811
812 while (timeout_us) {
813 if (tg3_ape_lock(tp, TG3_APE_LOCK_MEM))
814 return -EBUSY;
815
816 apedata = tg3_ape_read32(tp, TG3_APE_EVENT_STATUS);
817 if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING))
818 break;
819
820 tg3_ape_unlock(tp, TG3_APE_LOCK_MEM);
821
822 udelay(usec: 10);
823 timeout_us -= (timeout_us > 10) ? 10 : timeout_us;
824 }
825
826 return timeout_us ? 0 : -EBUSY;
827}
828
829#ifdef CONFIG_TIGON3_HWMON
830static int tg3_ape_wait_for_event(struct tg3 *tp, u32 timeout_us)
831{
832 u32 i, apedata;
833
834 for (i = 0; i < timeout_us / 10; i++) {
835 apedata = tg3_ape_read32(tp, TG3_APE_EVENT_STATUS);
836
837 if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING))
838 break;
839
840 udelay(usec: 10);
841 }
842
843 return i == timeout_us / 10;
844}
845
846static int tg3_ape_scratchpad_read(struct tg3 *tp, u32 *data, u32 base_off,
847 u32 len)
848{
849 int err;
850 u32 i, bufoff, msgoff, maxlen, apedata;
851
852 if (!tg3_flag(tp, APE_HAS_NCSI))
853 return 0;
854
855 apedata = tg3_ape_read32(tp, TG3_APE_SEG_SIG);
856 if (apedata != APE_SEG_SIG_MAGIC)
857 return -ENODEV;
858
859 apedata = tg3_ape_read32(tp, TG3_APE_FW_STATUS);
860 if (!(apedata & APE_FW_STATUS_READY))
861 return -EAGAIN;
862
863 bufoff = tg3_ape_read32(tp, TG3_APE_SEG_MSG_BUF_OFF) +
864 TG3_APE_SHMEM_BASE;
865 msgoff = bufoff + 2 * sizeof(u32);
866 maxlen = tg3_ape_read32(tp, TG3_APE_SEG_MSG_BUF_LEN);
867
868 while (len) {
869 u32 length;
870
871 /* Cap xfer sizes to scratchpad limits. */
872 length = (len > maxlen) ? maxlen : len;
873 len -= length;
874
875 apedata = tg3_ape_read32(tp, TG3_APE_FW_STATUS);
876 if (!(apedata & APE_FW_STATUS_READY))
877 return -EAGAIN;
878
879 /* Wait for up to 1 msec for APE to service previous event. */
880 err = tg3_ape_event_lock(tp, timeout_us: 1000);
881 if (err)
882 return err;
883
884 apedata = APE_EVENT_STATUS_DRIVER_EVNT |
885 APE_EVENT_STATUS_SCRTCHPD_READ |
886 APE_EVENT_STATUS_EVENT_PENDING;
887 tg3_ape_write32(tp, TG3_APE_EVENT_STATUS, val: apedata);
888
889 tg3_ape_write32(tp, off: bufoff, val: base_off);
890 tg3_ape_write32(tp, off: bufoff + sizeof(u32), val: length);
891
892 tg3_ape_unlock(tp, TG3_APE_LOCK_MEM);
893 tg3_ape_write32(tp, TG3_APE_EVENT, APE_EVENT_1);
894
895 base_off += length;
896
897 if (tg3_ape_wait_for_event(tp, timeout_us: 30000))
898 return -EAGAIN;
899
900 for (i = 0; length; i += 4, length -= 4) {
901 u32 val = tg3_ape_read32(tp, off: msgoff + i);
902 memcpy(to: data, from: &val, len: sizeof(u32));
903 data++;
904 }
905 }
906
907 return 0;
908}
909#endif
910
911static int tg3_ape_send_event(struct tg3 *tp, u32 event)
912{
913 int err;
914 u32 apedata;
915
916 apedata = tg3_ape_read32(tp, TG3_APE_SEG_SIG);
917 if (apedata != APE_SEG_SIG_MAGIC)
918 return -EAGAIN;
919
920 apedata = tg3_ape_read32(tp, TG3_APE_FW_STATUS);
921 if (!(apedata & APE_FW_STATUS_READY))
922 return -EAGAIN;
923
924 /* Wait for up to 20 millisecond for APE to service previous event. */
925 err = tg3_ape_event_lock(tp, timeout_us: 20000);
926 if (err)
927 return err;
928
929 tg3_ape_write32(tp, TG3_APE_EVENT_STATUS,
930 val: event | APE_EVENT_STATUS_EVENT_PENDING);
931
932 tg3_ape_unlock(tp, TG3_APE_LOCK_MEM);
933 tg3_ape_write32(tp, TG3_APE_EVENT, APE_EVENT_1);
934
935 return 0;
936}
937
938static void tg3_ape_driver_state_change(struct tg3 *tp, int kind)
939{
940 u32 event;
941 u32 apedata;
942
943 if (!tg3_flag(tp, ENABLE_APE))
944 return;
945
946 switch (kind) {
947 case RESET_KIND_INIT:
948 tg3_ape_write32(tp, TG3_APE_HOST_HEARTBEAT_COUNT, val: tp->ape_hb++);
949 tg3_ape_write32(tp, TG3_APE_HOST_SEG_SIG,
950 APE_HOST_SEG_SIG_MAGIC);
951 tg3_ape_write32(tp, TG3_APE_HOST_SEG_LEN,
952 APE_HOST_SEG_LEN_MAGIC);
953 apedata = tg3_ape_read32(tp, TG3_APE_HOST_INIT_COUNT);
954 tg3_ape_write32(tp, TG3_APE_HOST_INIT_COUNT, val: ++apedata);
955 tg3_ape_write32(tp, TG3_APE_HOST_DRIVER_ID,
956 APE_HOST_DRIVER_ID_MAGIC(TG3_MAJ_NUM, TG3_MIN_NUM));
957 tg3_ape_write32(tp, TG3_APE_HOST_BEHAVIOR,
958 APE_HOST_BEHAV_NO_PHYLOCK);
959 tg3_ape_write32(tp, TG3_APE_HOST_DRVR_STATE,
960 TG3_APE_HOST_DRVR_STATE_START);
961
962 event = APE_EVENT_STATUS_STATE_START;
963 break;
964 case RESET_KIND_SHUTDOWN:
965 if (device_may_wakeup(dev: &tp->pdev->dev) &&
966 tg3_flag(tp, WOL_ENABLE)) {
967 tg3_ape_write32(tp, TG3_APE_HOST_WOL_SPEED,
968 TG3_APE_HOST_WOL_SPEED_AUTO);
969 apedata = TG3_APE_HOST_DRVR_STATE_WOL;
970 } else
971 apedata = TG3_APE_HOST_DRVR_STATE_UNLOAD;
972
973 tg3_ape_write32(tp, TG3_APE_HOST_DRVR_STATE, val: apedata);
974
975 event = APE_EVENT_STATUS_STATE_UNLOAD;
976 break;
977 default:
978 return;
979 }
980
981 event |= APE_EVENT_STATUS_DRIVER_EVNT | APE_EVENT_STATUS_STATE_CHNGE;
982
983 tg3_ape_send_event(tp, event);
984}
985
986static void tg3_send_ape_heartbeat(struct tg3 *tp,
987 unsigned long interval)
988{
989 /* Check if hb interval has exceeded */
990 if (!tg3_flag(tp, ENABLE_APE) ||
991 time_before(jiffies, tp->ape_hb_jiffies + interval))
992 return;
993
994 tg3_ape_write32(tp, TG3_APE_HOST_HEARTBEAT_COUNT, val: tp->ape_hb++);
995 tp->ape_hb_jiffies = jiffies;
996}
997
998static void tg3_disable_ints(struct tg3 *tp)
999{
1000 int i;
1001
1002 tw32(TG3PCI_MISC_HOST_CTRL,
1003 (tp->misc_host_ctrl | MISC_HOST_CTRL_MASK_PCI_INT));
1004 for (i = 0; i < tp->irq_max; i++)
1005 tw32_mailbox_f(tp->napi[i].int_mbox, 0x00000001);
1006}
1007
1008static void tg3_enable_ints(struct tg3 *tp)
1009{
1010 int i;
1011
1012 tp->irq_sync = 0;
1013 wmb();
1014
1015 tw32(TG3PCI_MISC_HOST_CTRL,
1016 (tp->misc_host_ctrl & ~MISC_HOST_CTRL_MASK_PCI_INT));
1017
1018 tp->coal_now = tp->coalesce_mode | HOSTCC_MODE_ENABLE;
1019 for (i = 0; i < tp->irq_cnt; i++) {
1020 struct tg3_napi *tnapi = &tp->napi[i];
1021
1022 tw32_mailbox_f(tnapi->int_mbox, tnapi->last_tag << 24);
1023 if (tg3_flag(tp, 1SHOT_MSI))
1024 tw32_mailbox_f(tnapi->int_mbox, tnapi->last_tag << 24);
1025
1026 tp->coal_now |= tnapi->coal_now;
1027 }
1028
1029 /* Force an initial interrupt */
1030 if (!tg3_flag(tp, TAGGED_STATUS) &&
1031 (tp->napi[0].hw_status->status & SD_STATUS_UPDATED))
1032 tw32(GRC_LOCAL_CTRL, tp->grc_local_ctrl | GRC_LCLCTRL_SETINT);
1033 else
1034 tw32(HOSTCC_MODE, tp->coal_now);
1035
1036 tp->coal_now &= ~(tp->napi[0].coal_now | tp->napi[1].coal_now);
1037}
1038
1039static inline unsigned int tg3_has_work(struct tg3_napi *tnapi)
1040{
1041 struct tg3 *tp = tnapi->tp;
1042 struct tg3_hw_status *sblk = tnapi->hw_status;
1043 unsigned int work_exists = 0;
1044
1045 /* check for phy events */
1046 if (!(tg3_flag(tp, USE_LINKCHG_REG) || tg3_flag(tp, POLL_SERDES))) {
1047 if (sblk->status & SD_STATUS_LINK_CHG)
1048 work_exists = 1;
1049 }
1050
1051 /* check for TX work to do */
1052 if (sblk->idx[0].tx_consumer != tnapi->tx_cons)
1053 work_exists = 1;
1054
1055 /* check for RX work to do */
1056 if (tnapi->rx_rcb_prod_idx &&
1057 *(tnapi->rx_rcb_prod_idx) != tnapi->rx_rcb_ptr)
1058 work_exists = 1;
1059
1060 return work_exists;
1061}
1062
1063/* tg3_int_reenable
1064 * similar to tg3_enable_ints, but it accurately determines whether there
1065 * is new work pending and can return without flushing the PIO write
1066 * which reenables interrupts
1067 */
1068static void tg3_int_reenable(struct tg3_napi *tnapi)
1069{
1070 struct tg3 *tp = tnapi->tp;
1071
1072 tw32_mailbox(tnapi->int_mbox, tnapi->last_tag << 24);
1073
1074 /* When doing tagged status, this work check is unnecessary.
1075 * The last_tag we write above tells the chip which piece of
1076 * work we've completed.
1077 */
1078 if (!tg3_flag(tp, TAGGED_STATUS) && tg3_has_work(tnapi))
1079 tw32(HOSTCC_MODE, tp->coalesce_mode |
1080 HOSTCC_MODE_ENABLE | tnapi->coal_now);
1081}
1082
1083static void tg3_switch_clocks(struct tg3 *tp)
1084{
1085 u32 clock_ctrl;
1086 u32 orig_clock_ctrl;
1087
1088 if (tg3_flag(tp, CPMU_PRESENT) || tg3_flag(tp, 5780_CLASS))
1089 return;
1090
1091 clock_ctrl = tr32(TG3PCI_CLOCK_CTRL);
1092
1093 orig_clock_ctrl = clock_ctrl;
1094 clock_ctrl &= (CLOCK_CTRL_FORCE_CLKRUN |
1095 CLOCK_CTRL_CLKRUN_OENABLE |
1096 0x1f);
1097 tp->pci_clock_ctrl = clock_ctrl;
1098
1099 if (tg3_flag(tp, 5705_PLUS)) {
1100 if (orig_clock_ctrl & CLOCK_CTRL_625_CORE) {
1101 tw32_wait_f(TG3PCI_CLOCK_CTRL,
1102 clock_ctrl | CLOCK_CTRL_625_CORE, 40);
1103 }
1104 } else if ((orig_clock_ctrl & CLOCK_CTRL_44MHZ_CORE) != 0) {
1105 tw32_wait_f(TG3PCI_CLOCK_CTRL,
1106 clock_ctrl |
1107 (CLOCK_CTRL_44MHZ_CORE | CLOCK_CTRL_ALTCLK),
1108 40);
1109 tw32_wait_f(TG3PCI_CLOCK_CTRL,
1110 clock_ctrl | (CLOCK_CTRL_ALTCLK),
1111 40);
1112 }
1113 tw32_wait_f(TG3PCI_CLOCK_CTRL, clock_ctrl, 40);
1114}
1115
1116#define PHY_BUSY_LOOPS 5000
1117
1118static int __tg3_readphy(struct tg3 *tp, unsigned int phy_addr, int reg,
1119 u32 *val)
1120{
1121 u32 frame_val;
1122 unsigned int loops;
1123 int ret;
1124
1125 if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
1126 tw32_f(MAC_MI_MODE,
1127 (tp->mi_mode & ~MAC_MI_MODE_AUTO_POLL));
1128 udelay(usec: 80);
1129 }
1130
1131 tg3_ape_lock(tp, locknum: tp->phy_ape_lock);
1132
1133 *val = 0x0;
1134
1135 frame_val = ((phy_addr << MI_COM_PHY_ADDR_SHIFT) &
1136 MI_COM_PHY_ADDR_MASK);
1137 frame_val |= ((reg << MI_COM_REG_ADDR_SHIFT) &
1138 MI_COM_REG_ADDR_MASK);
1139 frame_val |= (MI_COM_CMD_READ | MI_COM_START);
1140
1141 tw32_f(MAC_MI_COM, frame_val);
1142
1143 loops = PHY_BUSY_LOOPS;
1144 while (loops != 0) {
1145 udelay(usec: 10);
1146 frame_val = tr32(MAC_MI_COM);
1147
1148 if ((frame_val & MI_COM_BUSY) == 0) {
1149 udelay(usec: 5);
1150 frame_val = tr32(MAC_MI_COM);
1151 break;
1152 }
1153 loops -= 1;
1154 }
1155
1156 ret = -EBUSY;
1157 if (loops != 0) {
1158 *val = frame_val & MI_COM_DATA_MASK;
1159 ret = 0;
1160 }
1161
1162 if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
1163 tw32_f(MAC_MI_MODE, tp->mi_mode);
1164 udelay(usec: 80);
1165 }
1166
1167 tg3_ape_unlock(tp, locknum: tp->phy_ape_lock);
1168
1169 return ret;
1170}
1171
1172static int tg3_readphy(struct tg3 *tp, int reg, u32 *val)
1173{
1174 return __tg3_readphy(tp, phy_addr: tp->phy_addr, reg, val);
1175}
1176
1177static int __tg3_writephy(struct tg3 *tp, unsigned int phy_addr, int reg,
1178 u32 val)
1179{
1180 u32 frame_val;
1181 unsigned int loops;
1182 int ret;
1183
1184 if ((tp->phy_flags & TG3_PHYFLG_IS_FET) &&
1185 (reg == MII_CTRL1000 || reg == MII_TG3_AUX_CTRL))
1186 return 0;
1187
1188 if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
1189 tw32_f(MAC_MI_MODE,
1190 (tp->mi_mode & ~MAC_MI_MODE_AUTO_POLL));
1191 udelay(usec: 80);
1192 }
1193
1194 tg3_ape_lock(tp, locknum: tp->phy_ape_lock);
1195
1196 frame_val = ((phy_addr << MI_COM_PHY_ADDR_SHIFT) &
1197 MI_COM_PHY_ADDR_MASK);
1198 frame_val |= ((reg << MI_COM_REG_ADDR_SHIFT) &
1199 MI_COM_REG_ADDR_MASK);
1200 frame_val |= (val & MI_COM_DATA_MASK);
1201 frame_val |= (MI_COM_CMD_WRITE | MI_COM_START);
1202
1203 tw32_f(MAC_MI_COM, frame_val);
1204
1205 loops = PHY_BUSY_LOOPS;
1206 while (loops != 0) {
1207 udelay(usec: 10);
1208 frame_val = tr32(MAC_MI_COM);
1209 if ((frame_val & MI_COM_BUSY) == 0) {
1210 udelay(usec: 5);
1211 frame_val = tr32(MAC_MI_COM);
1212 break;
1213 }
1214 loops -= 1;
1215 }
1216
1217 ret = -EBUSY;
1218 if (loops != 0)
1219 ret = 0;
1220
1221 if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
1222 tw32_f(MAC_MI_MODE, tp->mi_mode);
1223 udelay(usec: 80);
1224 }
1225
1226 tg3_ape_unlock(tp, locknum: tp->phy_ape_lock);
1227
1228 return ret;
1229}
1230
1231static int tg3_writephy(struct tg3 *tp, int reg, u32 val)
1232{
1233 return __tg3_writephy(tp, phy_addr: tp->phy_addr, reg, val);
1234}
1235
1236static int tg3_phy_cl45_write(struct tg3 *tp, u32 devad, u32 addr, u32 val)
1237{
1238 int err;
1239
1240 err = tg3_writephy(tp, MII_TG3_MMD_CTRL, val: devad);
1241 if (err)
1242 goto done;
1243
1244 err = tg3_writephy(tp, MII_TG3_MMD_ADDRESS, val: addr);
1245 if (err)
1246 goto done;
1247
1248 err = tg3_writephy(tp, MII_TG3_MMD_CTRL,
1249 MII_TG3_MMD_CTRL_DATA_NOINC | devad);
1250 if (err)
1251 goto done;
1252
1253 err = tg3_writephy(tp, MII_TG3_MMD_ADDRESS, val);
1254
1255done:
1256 return err;
1257}
1258
1259static int tg3_phy_cl45_read(struct tg3 *tp, u32 devad, u32 addr, u32 *val)
1260{
1261 int err;
1262
1263 err = tg3_writephy(tp, MII_TG3_MMD_CTRL, val: devad);
1264 if (err)
1265 goto done;
1266
1267 err = tg3_writephy(tp, MII_TG3_MMD_ADDRESS, val: addr);
1268 if (err)
1269 goto done;
1270
1271 err = tg3_writephy(tp, MII_TG3_MMD_CTRL,
1272 MII_TG3_MMD_CTRL_DATA_NOINC | devad);
1273 if (err)
1274 goto done;
1275
1276 err = tg3_readphy(tp, MII_TG3_MMD_ADDRESS, val);
1277
1278done:
1279 return err;
1280}
1281
1282static int tg3_phydsp_read(struct tg3 *tp, u32 reg, u32 *val)
1283{
1284 int err;
1285
1286 err = tg3_writephy(tp, MII_TG3_DSP_ADDRESS, val: reg);
1287 if (!err)
1288 err = tg3_readphy(tp, MII_TG3_DSP_RW_PORT, val);
1289
1290 return err;
1291}
1292
1293static int tg3_phydsp_write(struct tg3 *tp, u32 reg, u32 val)
1294{
1295 int err;
1296
1297 err = tg3_writephy(tp, MII_TG3_DSP_ADDRESS, val: reg);
1298 if (!err)
1299 err = tg3_writephy(tp, MII_TG3_DSP_RW_PORT, val);
1300
1301 return err;
1302}
1303
1304static int tg3_phy_auxctl_read(struct tg3 *tp, int reg, u32 *val)
1305{
1306 int err;
1307
1308 err = tg3_writephy(tp, MII_TG3_AUX_CTRL,
1309 val: (reg << MII_TG3_AUXCTL_MISC_RDSEL_SHIFT) |
1310 MII_TG3_AUXCTL_SHDWSEL_MISC);
1311 if (!err)
1312 err = tg3_readphy(tp, MII_TG3_AUX_CTRL, val);
1313
1314 return err;
1315}
1316
1317static int tg3_phy_auxctl_write(struct tg3 *tp, int reg, u32 set)
1318{
1319 if (reg == MII_TG3_AUXCTL_SHDWSEL_MISC)
1320 set |= MII_TG3_AUXCTL_MISC_WREN;
1321
1322 return tg3_writephy(tp, MII_TG3_AUX_CTRL, val: set | reg);
1323}
1324
1325static int tg3_phy_toggle_auxctl_smdsp(struct tg3 *tp, bool enable)
1326{
1327 u32 val;
1328 int err;
1329
1330 err = tg3_phy_auxctl_read(tp, MII_TG3_AUXCTL_SHDWSEL_AUXCTL, val: &val);
1331
1332 if (err)
1333 return err;
1334
1335 if (enable)
1336 val |= MII_TG3_AUXCTL_ACTL_SMDSP_ENA;
1337 else
1338 val &= ~MII_TG3_AUXCTL_ACTL_SMDSP_ENA;
1339
1340 err = tg3_phy_auxctl_write((tp), MII_TG3_AUXCTL_SHDWSEL_AUXCTL,
1341 set: val | MII_TG3_AUXCTL_ACTL_TX_6DB);
1342
1343 return err;
1344}
1345
1346static int tg3_phy_shdw_write(struct tg3 *tp, int reg, u32 val)
1347{
1348 return tg3_writephy(tp, MII_TG3_MISC_SHDW,
1349 val: reg | val | MII_TG3_MISC_SHDW_WREN);
1350}
1351
1352static int tg3_bmcr_reset(struct tg3 *tp)
1353{
1354 u32 phy_control;
1355 int limit, err;
1356
1357 /* OK, reset it, and poll the BMCR_RESET bit until it
1358 * clears or we time out.
1359 */
1360 phy_control = BMCR_RESET;
1361 err = tg3_writephy(tp, MII_BMCR, val: phy_control);
1362 if (err != 0)
1363 return -EBUSY;
1364
1365 limit = 5000;
1366 while (limit--) {
1367 err = tg3_readphy(tp, MII_BMCR, val: &phy_control);
1368 if (err != 0)
1369 return -EBUSY;
1370
1371 if ((phy_control & BMCR_RESET) == 0) {
1372 udelay(usec: 40);
1373 break;
1374 }
1375 udelay(usec: 10);
1376 }
1377 if (limit < 0)
1378 return -EBUSY;
1379
1380 return 0;
1381}
1382
1383static int tg3_mdio_read(struct mii_bus *bp, int mii_id, int reg)
1384{
1385 struct tg3 *tp = bp->priv;
1386 u32 val;
1387
1388 spin_lock_bh(lock: &tp->lock);
1389
1390 if (__tg3_readphy(tp, phy_addr: mii_id, reg, val: &val))
1391 val = -EIO;
1392
1393 spin_unlock_bh(lock: &tp->lock);
1394
1395 return val;
1396}
1397
1398static int tg3_mdio_write(struct mii_bus *bp, int mii_id, int reg, u16 val)
1399{
1400 struct tg3 *tp = bp->priv;
1401 u32 ret = 0;
1402
1403 spin_lock_bh(lock: &tp->lock);
1404
1405 if (__tg3_writephy(tp, phy_addr: mii_id, reg, val))
1406 ret = -EIO;
1407
1408 spin_unlock_bh(lock: &tp->lock);
1409
1410 return ret;
1411}
1412
1413static void tg3_mdio_config_5785(struct tg3 *tp)
1414{
1415 u32 val;
1416 struct phy_device *phydev;
1417
1418 phydev = mdiobus_get_phy(bus: tp->mdio_bus, addr: tp->phy_addr);
1419 switch (phydev->drv->phy_id & phydev->drv->phy_id_mask) {
1420 case PHY_ID_BCM50610:
1421 case PHY_ID_BCM50610M:
1422 val = MAC_PHYCFG2_50610_LED_MODES;
1423 break;
1424 case PHY_ID_BCMAC131:
1425 val = MAC_PHYCFG2_AC131_LED_MODES;
1426 break;
1427 case PHY_ID_RTL8211C:
1428 val = MAC_PHYCFG2_RTL8211C_LED_MODES;
1429 break;
1430 case PHY_ID_RTL8201E:
1431 val = MAC_PHYCFG2_RTL8201E_LED_MODES;
1432 break;
1433 default:
1434 return;
1435 }
1436
1437 if (phydev->interface != PHY_INTERFACE_MODE_RGMII) {
1438 tw32(MAC_PHYCFG2, val);
1439
1440 val = tr32(MAC_PHYCFG1);
1441 val &= ~(MAC_PHYCFG1_RGMII_INT |
1442 MAC_PHYCFG1_RXCLK_TO_MASK | MAC_PHYCFG1_TXCLK_TO_MASK);
1443 val |= MAC_PHYCFG1_RXCLK_TIMEOUT | MAC_PHYCFG1_TXCLK_TIMEOUT;
1444 tw32(MAC_PHYCFG1, val);
1445
1446 return;
1447 }
1448
1449 if (!tg3_flag(tp, RGMII_INBAND_DISABLE))
1450 val |= MAC_PHYCFG2_EMODE_MASK_MASK |
1451 MAC_PHYCFG2_FMODE_MASK_MASK |
1452 MAC_PHYCFG2_GMODE_MASK_MASK |
1453 MAC_PHYCFG2_ACT_MASK_MASK |
1454 MAC_PHYCFG2_QUAL_MASK_MASK |
1455 MAC_PHYCFG2_INBAND_ENABLE;
1456
1457 tw32(MAC_PHYCFG2, val);
1458
1459 val = tr32(MAC_PHYCFG1);
1460 val &= ~(MAC_PHYCFG1_RXCLK_TO_MASK | MAC_PHYCFG1_TXCLK_TO_MASK |
1461 MAC_PHYCFG1_RGMII_EXT_RX_DEC | MAC_PHYCFG1_RGMII_SND_STAT_EN);
1462 if (!tg3_flag(tp, RGMII_INBAND_DISABLE)) {
1463 if (tg3_flag(tp, RGMII_EXT_IBND_RX_EN))
1464 val |= MAC_PHYCFG1_RGMII_EXT_RX_DEC;
1465 if (tg3_flag(tp, RGMII_EXT_IBND_TX_EN))
1466 val |= MAC_PHYCFG1_RGMII_SND_STAT_EN;
1467 }
1468 val |= MAC_PHYCFG1_RXCLK_TIMEOUT | MAC_PHYCFG1_TXCLK_TIMEOUT |
1469 MAC_PHYCFG1_RGMII_INT | MAC_PHYCFG1_TXC_DRV;
1470 tw32(MAC_PHYCFG1, val);
1471
1472 val = tr32(MAC_EXT_RGMII_MODE);
1473 val &= ~(MAC_RGMII_MODE_RX_INT_B |
1474 MAC_RGMII_MODE_RX_QUALITY |
1475 MAC_RGMII_MODE_RX_ACTIVITY |
1476 MAC_RGMII_MODE_RX_ENG_DET |
1477 MAC_RGMII_MODE_TX_ENABLE |
1478 MAC_RGMII_MODE_TX_LOWPWR |
1479 MAC_RGMII_MODE_TX_RESET);
1480 if (!tg3_flag(tp, RGMII_INBAND_DISABLE)) {
1481 if (tg3_flag(tp, RGMII_EXT_IBND_RX_EN))
1482 val |= MAC_RGMII_MODE_RX_INT_B |
1483 MAC_RGMII_MODE_RX_QUALITY |
1484 MAC_RGMII_MODE_RX_ACTIVITY |
1485 MAC_RGMII_MODE_RX_ENG_DET;
1486 if (tg3_flag(tp, RGMII_EXT_IBND_TX_EN))
1487 val |= MAC_RGMII_MODE_TX_ENABLE |
1488 MAC_RGMII_MODE_TX_LOWPWR |
1489 MAC_RGMII_MODE_TX_RESET;
1490 }
1491 tw32(MAC_EXT_RGMII_MODE, val);
1492}
1493
1494static void tg3_mdio_start(struct tg3 *tp)
1495{
1496 tp->mi_mode &= ~MAC_MI_MODE_AUTO_POLL;
1497 tw32_f(MAC_MI_MODE, tp->mi_mode);
1498 udelay(usec: 80);
1499
1500 if (tg3_flag(tp, MDIOBUS_INITED) &&
1501 tg3_asic_rev(tp) == ASIC_REV_5785)
1502 tg3_mdio_config_5785(tp);
1503}
1504
1505static int tg3_mdio_init(struct tg3 *tp)
1506{
1507 int i;
1508 u32 reg;
1509 struct phy_device *phydev;
1510
1511 if (tg3_flag(tp, 5717_PLUS)) {
1512 u32 is_serdes;
1513
1514 tp->phy_addr = tp->pci_fn + 1;
1515
1516 if (tg3_chip_rev_id(tp) != CHIPREV_ID_5717_A0)
1517 is_serdes = tr32(SG_DIG_STATUS) & SG_DIG_IS_SERDES;
1518 else
1519 is_serdes = tr32(TG3_CPMU_PHY_STRAP) &
1520 TG3_CPMU_PHY_STRAP_IS_SERDES;
1521 if (is_serdes)
1522 tp->phy_addr += 7;
1523 } else if (tg3_flag(tp, IS_SSB_CORE) && tg3_flag(tp, ROBOSWITCH)) {
1524 int addr;
1525
1526 addr = ssb_gige_get_phyaddr(pdev: tp->pdev);
1527 if (addr < 0)
1528 return addr;
1529 tp->phy_addr = addr;
1530 } else
1531 tp->phy_addr = TG3_PHY_MII_ADDR;
1532
1533 tg3_mdio_start(tp);
1534
1535 if (!tg3_flag(tp, USE_PHYLIB) || tg3_flag(tp, MDIOBUS_INITED))
1536 return 0;
1537
1538 tp->mdio_bus = mdiobus_alloc();
1539 if (tp->mdio_bus == NULL)
1540 return -ENOMEM;
1541
1542 tp->mdio_bus->name = "tg3 mdio bus";
1543 snprintf(buf: tp->mdio_bus->id, MII_BUS_ID_SIZE, fmt: "%x", pci_dev_id(dev: tp->pdev));
1544 tp->mdio_bus->priv = tp;
1545 tp->mdio_bus->parent = &tp->pdev->dev;
1546 tp->mdio_bus->read = &tg3_mdio_read;
1547 tp->mdio_bus->write = &tg3_mdio_write;
1548 tp->mdio_bus->phy_mask = ~(1 << tp->phy_addr);
1549
1550 /* The bus registration will look for all the PHYs on the mdio bus.
1551 * Unfortunately, it does not ensure the PHY is powered up before
1552 * accessing the PHY ID registers. A chip reset is the
1553 * quickest way to bring the device back to an operational state..
1554 */
1555 if (tg3_readphy(tp, MII_BMCR, val: &reg) || (reg & BMCR_PDOWN))
1556 tg3_bmcr_reset(tp);
1557
1558 i = mdiobus_register(tp->mdio_bus);
1559 if (i) {
1560 dev_warn(&tp->pdev->dev, "mdiobus_reg failed (0x%x)\n", i);
1561 mdiobus_free(bus: tp->mdio_bus);
1562 return i;
1563 }
1564
1565 phydev = mdiobus_get_phy(bus: tp->mdio_bus, addr: tp->phy_addr);
1566
1567 if (!phydev || !phydev->drv) {
1568 dev_warn(&tp->pdev->dev, "No PHY devices\n");
1569 mdiobus_unregister(bus: tp->mdio_bus);
1570 mdiobus_free(bus: tp->mdio_bus);
1571 return -ENODEV;
1572 }
1573
1574 switch (phydev->drv->phy_id & phydev->drv->phy_id_mask) {
1575 case PHY_ID_BCM57780:
1576 phydev->interface = PHY_INTERFACE_MODE_GMII;
1577 phydev->dev_flags |= PHY_BRCM_AUTO_PWRDWN_ENABLE;
1578 break;
1579 case PHY_ID_BCM50610:
1580 case PHY_ID_BCM50610M:
1581 phydev->dev_flags |= PHY_BRCM_CLEAR_RGMII_MODE |
1582 PHY_BRCM_RX_REFCLK_UNUSED |
1583 PHY_BRCM_DIS_TXCRXC_NOENRGY |
1584 PHY_BRCM_AUTO_PWRDWN_ENABLE;
1585 fallthrough;
1586 case PHY_ID_RTL8211C:
1587 phydev->interface = PHY_INTERFACE_MODE_RGMII;
1588 break;
1589 case PHY_ID_RTL8201E:
1590 case PHY_ID_BCMAC131:
1591 phydev->interface = PHY_INTERFACE_MODE_MII;
1592 phydev->dev_flags |= PHY_BRCM_AUTO_PWRDWN_ENABLE;
1593 tp->phy_flags |= TG3_PHYFLG_IS_FET;
1594 break;
1595 }
1596
1597 tg3_flag_set(tp, MDIOBUS_INITED);
1598
1599 if (tg3_asic_rev(tp) == ASIC_REV_5785)
1600 tg3_mdio_config_5785(tp);
1601
1602 return 0;
1603}
1604
1605static void tg3_mdio_fini(struct tg3 *tp)
1606{
1607 if (tg3_flag(tp, MDIOBUS_INITED)) {
1608 tg3_flag_clear(tp, MDIOBUS_INITED);
1609 mdiobus_unregister(bus: tp->mdio_bus);
1610 mdiobus_free(bus: tp->mdio_bus);
1611 }
1612}
1613
1614/* tp->lock is held. */
1615static inline void tg3_generate_fw_event(struct tg3 *tp)
1616{
1617 u32 val;
1618
1619 val = tr32(GRC_RX_CPU_EVENT);
1620 val |= GRC_RX_CPU_DRIVER_EVENT;
1621 tw32_f(GRC_RX_CPU_EVENT, val);
1622
1623 tp->last_event_jiffies = jiffies;
1624}
1625
1626#define TG3_FW_EVENT_TIMEOUT_USEC 2500
1627
1628/* tp->lock is held. */
1629static void tg3_wait_for_event_ack(struct tg3 *tp)
1630{
1631 int i;
1632 unsigned int delay_cnt;
1633 long time_remain;
1634
1635 /* If enough time has passed, no wait is necessary. */
1636 time_remain = (long)(tp->last_event_jiffies + 1 +
1637 usecs_to_jiffies(TG3_FW_EVENT_TIMEOUT_USEC)) -
1638 (long)jiffies;
1639 if (time_remain < 0)
1640 return;
1641
1642 /* Check if we can shorten the wait time. */
1643 delay_cnt = jiffies_to_usecs(j: time_remain);
1644 if (delay_cnt > TG3_FW_EVENT_TIMEOUT_USEC)
1645 delay_cnt = TG3_FW_EVENT_TIMEOUT_USEC;
1646 delay_cnt = (delay_cnt >> 3) + 1;
1647
1648 for (i = 0; i < delay_cnt; i++) {
1649 if (!(tr32(GRC_RX_CPU_EVENT) & GRC_RX_CPU_DRIVER_EVENT))
1650 break;
1651 if (pci_channel_offline(pdev: tp->pdev))
1652 break;
1653
1654 udelay(usec: 8);
1655 }
1656}
1657
1658/* tp->lock is held. */
1659static void tg3_phy_gather_ump_data(struct tg3 *tp, u32 *data)
1660{
1661 u32 reg, val;
1662
1663 val = 0;
1664 if (!tg3_readphy(tp, MII_BMCR, val: &reg))
1665 val = reg << 16;
1666 if (!tg3_readphy(tp, MII_BMSR, val: &reg))
1667 val |= (reg & 0xffff);
1668 *data++ = val;
1669
1670 val = 0;
1671 if (!tg3_readphy(tp, MII_ADVERTISE, val: &reg))
1672 val = reg << 16;
1673 if (!tg3_readphy(tp, MII_LPA, val: &reg))
1674 val |= (reg & 0xffff);
1675 *data++ = val;
1676
1677 val = 0;
1678 if (!(tp->phy_flags & TG3_PHYFLG_MII_SERDES)) {
1679 if (!tg3_readphy(tp, MII_CTRL1000, val: &reg))
1680 val = reg << 16;
1681 if (!tg3_readphy(tp, MII_STAT1000, val: &reg))
1682 val |= (reg & 0xffff);
1683 }
1684 *data++ = val;
1685
1686 if (!tg3_readphy(tp, MII_PHYADDR, val: &reg))
1687 val = reg << 16;
1688 else
1689 val = 0;
1690 *data++ = val;
1691}
1692
1693/* tp->lock is held. */
1694static void tg3_ump_link_report(struct tg3 *tp)
1695{
1696 u32 data[4];
1697
1698 if (!tg3_flag(tp, 5780_CLASS) || !tg3_flag(tp, ENABLE_ASF))
1699 return;
1700
1701 tg3_phy_gather_ump_data(tp, data);
1702
1703 tg3_wait_for_event_ack(tp);
1704
1705 tg3_write_mem(tp, NIC_SRAM_FW_CMD_MBOX, FWCMD_NICDRV_LINK_UPDATE);
1706 tg3_write_mem(tp, NIC_SRAM_FW_CMD_LEN_MBOX, val: 14);
1707 tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX + 0x0, val: data[0]);
1708 tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX + 0x4, val: data[1]);
1709 tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX + 0x8, val: data[2]);
1710 tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX + 0xc, val: data[3]);
1711
1712 tg3_generate_fw_event(tp);
1713}
1714
1715/* tp->lock is held. */
1716static void tg3_stop_fw(struct tg3 *tp)
1717{
1718 if (tg3_flag(tp, ENABLE_ASF) && !tg3_flag(tp, ENABLE_APE)) {
1719 /* Wait for RX cpu to ACK the previous event. */
1720 tg3_wait_for_event_ack(tp);
1721
1722 tg3_write_mem(tp, NIC_SRAM_FW_CMD_MBOX, FWCMD_NICDRV_PAUSE_FW);
1723
1724 tg3_generate_fw_event(tp);
1725
1726 /* Wait for RX cpu to ACK this event. */
1727 tg3_wait_for_event_ack(tp);
1728 }
1729}
1730
1731/* tp->lock is held. */
1732static void tg3_write_sig_pre_reset(struct tg3 *tp, int kind)
1733{
1734 tg3_write_mem(tp, NIC_SRAM_FIRMWARE_MBOX,
1735 NIC_SRAM_FIRMWARE_MBOX_MAGIC1);
1736
1737 if (tg3_flag(tp, ASF_NEW_HANDSHAKE)) {
1738 switch (kind) {
1739 case RESET_KIND_INIT:
1740 tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
1741 DRV_STATE_START);
1742 break;
1743
1744 case RESET_KIND_SHUTDOWN:
1745 tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
1746 DRV_STATE_UNLOAD);
1747 break;
1748
1749 case RESET_KIND_SUSPEND:
1750 tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
1751 DRV_STATE_SUSPEND);
1752 break;
1753
1754 default:
1755 break;
1756 }
1757 }
1758}
1759
1760/* tp->lock is held. */
1761static void tg3_write_sig_post_reset(struct tg3 *tp, int kind)
1762{
1763 if (tg3_flag(tp, ASF_NEW_HANDSHAKE)) {
1764 switch (kind) {
1765 case RESET_KIND_INIT:
1766 tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
1767 DRV_STATE_START_DONE);
1768 break;
1769
1770 case RESET_KIND_SHUTDOWN:
1771 tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
1772 DRV_STATE_UNLOAD_DONE);
1773 break;
1774
1775 default:
1776 break;
1777 }
1778 }
1779}
1780
1781/* tp->lock is held. */
1782static void tg3_write_sig_legacy(struct tg3 *tp, int kind)
1783{
1784 if (tg3_flag(tp, ENABLE_ASF)) {
1785 switch (kind) {
1786 case RESET_KIND_INIT:
1787 tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
1788 DRV_STATE_START);
1789 break;
1790
1791 case RESET_KIND_SHUTDOWN:
1792 tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
1793 DRV_STATE_UNLOAD);
1794 break;
1795
1796 case RESET_KIND_SUSPEND:
1797 tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
1798 DRV_STATE_SUSPEND);
1799 break;
1800
1801 default:
1802 break;
1803 }
1804 }
1805}
1806
1807static int tg3_poll_fw(struct tg3 *tp)
1808{
1809 int i;
1810 u32 val;
1811
1812 if (tg3_flag(tp, NO_FWARE_REPORTED))
1813 return 0;
1814
1815 if (tg3_flag(tp, IS_SSB_CORE)) {
1816 /* We don't use firmware. */
1817 return 0;
1818 }
1819
1820 if (tg3_asic_rev(tp) == ASIC_REV_5906) {
1821 /* Wait up to 20ms for init done. */
1822 for (i = 0; i < 200; i++) {
1823 if (tr32(VCPU_STATUS) & VCPU_STATUS_INIT_DONE)
1824 return 0;
1825 if (pci_channel_offline(pdev: tp->pdev))
1826 return -ENODEV;
1827
1828 udelay(usec: 100);
1829 }
1830 return -ENODEV;
1831 }
1832
1833 /* Wait for firmware initialization to complete. */
1834 for (i = 0; i < 100000; i++) {
1835 tg3_read_mem(tp, NIC_SRAM_FIRMWARE_MBOX, val: &val);
1836 if (val == ~NIC_SRAM_FIRMWARE_MBOX_MAGIC1)
1837 break;
1838 if (pci_channel_offline(pdev: tp->pdev)) {
1839 if (!tg3_flag(tp, NO_FWARE_REPORTED)) {
1840 tg3_flag_set(tp, NO_FWARE_REPORTED);
1841 netdev_info(dev: tp->dev, format: "No firmware running\n");
1842 }
1843
1844 break;
1845 }
1846
1847 udelay(usec: 10);
1848 }
1849
1850 /* Chip might not be fitted with firmware. Some Sun onboard
1851 * parts are configured like that. So don't signal the timeout
1852 * of the above loop as an error, but do report the lack of
1853 * running firmware once.
1854 */
1855 if (i >= 100000 && !tg3_flag(tp, NO_FWARE_REPORTED)) {
1856 tg3_flag_set(tp, NO_FWARE_REPORTED);
1857
1858 netdev_info(dev: tp->dev, format: "No firmware running\n");
1859 }
1860
1861 if (tg3_chip_rev_id(tp) == CHIPREV_ID_57765_A0) {
1862 /* The 57765 A0 needs a little more
1863 * time to do some important work.
1864 */
1865 mdelay(10);
1866 }
1867
1868 return 0;
1869}
1870
1871static void tg3_link_report(struct tg3 *tp)
1872{
1873 if (!netif_carrier_ok(dev: tp->dev)) {
1874 netif_info(tp, link, tp->dev, "Link is down\n");
1875 tg3_ump_link_report(tp);
1876 } else if (netif_msg_link(tp)) {
1877 netdev_info(dev: tp->dev, format: "Link is up at %d Mbps, %s duplex\n",
1878 (tp->link_config.active_speed == SPEED_1000 ?
1879 1000 :
1880 (tp->link_config.active_speed == SPEED_100 ?
1881 100 : 10)),
1882 (tp->link_config.active_duplex == DUPLEX_FULL ?
1883 "full" : "half"));
1884
1885 netdev_info(dev: tp->dev, format: "Flow control is %s for TX and %s for RX\n",
1886 (tp->link_config.active_flowctrl & FLOW_CTRL_TX) ?
1887 "on" : "off",
1888 (tp->link_config.active_flowctrl & FLOW_CTRL_RX) ?
1889 "on" : "off");
1890
1891 if (tp->phy_flags & TG3_PHYFLG_EEE_CAP)
1892 netdev_info(dev: tp->dev, format: "EEE is %s\n",
1893 tp->setlpicnt ? "enabled" : "disabled");
1894
1895 tg3_ump_link_report(tp);
1896 }
1897
1898 tp->link_up = netif_carrier_ok(dev: tp->dev);
1899}
1900
1901static u32 tg3_decode_flowctrl_1000T(u32 adv)
1902{
1903 u32 flowctrl = 0;
1904
1905 if (adv & ADVERTISE_PAUSE_CAP) {
1906 flowctrl |= FLOW_CTRL_RX;
1907 if (!(adv & ADVERTISE_PAUSE_ASYM))
1908 flowctrl |= FLOW_CTRL_TX;
1909 } else if (adv & ADVERTISE_PAUSE_ASYM)
1910 flowctrl |= FLOW_CTRL_TX;
1911
1912 return flowctrl;
1913}
1914
1915static u16 tg3_advert_flowctrl_1000X(u8 flow_ctrl)
1916{
1917 u16 miireg;
1918
1919 if ((flow_ctrl & FLOW_CTRL_TX) && (flow_ctrl & FLOW_CTRL_RX))
1920 miireg = ADVERTISE_1000XPAUSE;
1921 else if (flow_ctrl & FLOW_CTRL_TX)
1922 miireg = ADVERTISE_1000XPSE_ASYM;
1923 else if (flow_ctrl & FLOW_CTRL_RX)
1924 miireg = ADVERTISE_1000XPAUSE | ADVERTISE_1000XPSE_ASYM;
1925 else
1926 miireg = 0;
1927
1928 return miireg;
1929}
1930
1931static u32 tg3_decode_flowctrl_1000X(u32 adv)
1932{
1933 u32 flowctrl = 0;
1934
1935 if (adv & ADVERTISE_1000XPAUSE) {
1936 flowctrl |= FLOW_CTRL_RX;
1937 if (!(adv & ADVERTISE_1000XPSE_ASYM))
1938 flowctrl |= FLOW_CTRL_TX;
1939 } else if (adv & ADVERTISE_1000XPSE_ASYM)
1940 flowctrl |= FLOW_CTRL_TX;
1941
1942 return flowctrl;
1943}
1944
1945static u8 tg3_resolve_flowctrl_1000X(u16 lcladv, u16 rmtadv)
1946{
1947 u8 cap = 0;
1948
1949 if (lcladv & rmtadv & ADVERTISE_1000XPAUSE) {
1950 cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
1951 } else if (lcladv & rmtadv & ADVERTISE_1000XPSE_ASYM) {
1952 if (lcladv & ADVERTISE_1000XPAUSE)
1953 cap = FLOW_CTRL_RX;
1954 if (rmtadv & ADVERTISE_1000XPAUSE)
1955 cap = FLOW_CTRL_TX;
1956 }
1957
1958 return cap;
1959}
1960
1961static void tg3_setup_flow_control(struct tg3 *tp, u32 lcladv, u32 rmtadv)
1962{
1963 u8 autoneg;
1964 u8 flowctrl = 0;
1965 u32 old_rx_mode = tp->rx_mode;
1966 u32 old_tx_mode = tp->tx_mode;
1967
1968 if (tg3_flag(tp, USE_PHYLIB))
1969 autoneg = mdiobus_get_phy(bus: tp->mdio_bus, addr: tp->phy_addr)->autoneg;
1970 else
1971 autoneg = tp->link_config.autoneg;
1972
1973 if (autoneg == AUTONEG_ENABLE && tg3_flag(tp, PAUSE_AUTONEG)) {
1974 if (tp->phy_flags & TG3_PHYFLG_ANY_SERDES)
1975 flowctrl = tg3_resolve_flowctrl_1000X(lcladv, rmtadv);
1976 else
1977 flowctrl = mii_resolve_flowctrl_fdx(lcladv, rmtadv);
1978 } else
1979 flowctrl = tp->link_config.flowctrl;
1980
1981 tp->link_config.active_flowctrl = flowctrl;
1982
1983 if (flowctrl & FLOW_CTRL_RX)
1984 tp->rx_mode |= RX_MODE_FLOW_CTRL_ENABLE;
1985 else
1986 tp->rx_mode &= ~RX_MODE_FLOW_CTRL_ENABLE;
1987
1988 if (old_rx_mode != tp->rx_mode)
1989 tw32_f(MAC_RX_MODE, tp->rx_mode);
1990
1991 if (flowctrl & FLOW_CTRL_TX)
1992 tp->tx_mode |= TX_MODE_FLOW_CTRL_ENABLE;
1993 else
1994 tp->tx_mode &= ~TX_MODE_FLOW_CTRL_ENABLE;
1995
1996 if (old_tx_mode != tp->tx_mode)
1997 tw32_f(MAC_TX_MODE, tp->tx_mode);
1998}
1999
2000static void tg3_adjust_link(struct net_device *dev)
2001{
2002 u8 oldflowctrl, linkmesg = 0;
2003 u32 mac_mode, lcl_adv, rmt_adv;
2004 struct tg3 *tp = netdev_priv(dev);
2005 struct phy_device *phydev = mdiobus_get_phy(bus: tp->mdio_bus, addr: tp->phy_addr);
2006
2007 spin_lock_bh(lock: &tp->lock);
2008
2009 mac_mode = tp->mac_mode & ~(MAC_MODE_PORT_MODE_MASK |
2010 MAC_MODE_HALF_DUPLEX);
2011
2012 oldflowctrl = tp->link_config.active_flowctrl;
2013
2014 if (phydev->link) {
2015 lcl_adv = 0;
2016 rmt_adv = 0;
2017
2018 if (phydev->speed == SPEED_100 || phydev->speed == SPEED_10)
2019 mac_mode |= MAC_MODE_PORT_MODE_MII;
2020 else if (phydev->speed == SPEED_1000 ||
2021 tg3_asic_rev(tp) != ASIC_REV_5785)
2022 mac_mode |= MAC_MODE_PORT_MODE_GMII;
2023 else
2024 mac_mode |= MAC_MODE_PORT_MODE_MII;
2025
2026 if (phydev->duplex == DUPLEX_HALF)
2027 mac_mode |= MAC_MODE_HALF_DUPLEX;
2028 else {
2029 lcl_adv = mii_advertise_flowctrl(
2030 cap: tp->link_config.flowctrl);
2031
2032 if (phydev->pause)
2033 rmt_adv = LPA_PAUSE_CAP;
2034 if (phydev->asym_pause)
2035 rmt_adv |= LPA_PAUSE_ASYM;
2036 }
2037
2038 tg3_setup_flow_control(tp, lcladv: lcl_adv, rmtadv: rmt_adv);
2039 } else
2040 mac_mode |= MAC_MODE_PORT_MODE_GMII;
2041
2042 if (mac_mode != tp->mac_mode) {
2043 tp->mac_mode = mac_mode;
2044 tw32_f(MAC_MODE, tp->mac_mode);
2045 udelay(usec: 40);
2046 }
2047
2048 if (tg3_asic_rev(tp) == ASIC_REV_5785) {
2049 if (phydev->speed == SPEED_10)
2050 tw32(MAC_MI_STAT,
2051 MAC_MI_STAT_10MBPS_MODE |
2052 MAC_MI_STAT_LNKSTAT_ATTN_ENAB);
2053 else
2054 tw32(MAC_MI_STAT, MAC_MI_STAT_LNKSTAT_ATTN_ENAB);
2055 }
2056
2057 if (phydev->speed == SPEED_1000 && phydev->duplex == DUPLEX_HALF)
2058 tw32(MAC_TX_LENGTHS,
2059 ((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
2060 (6 << TX_LENGTHS_IPG_SHIFT) |
2061 (0xff << TX_LENGTHS_SLOT_TIME_SHIFT)));
2062 else
2063 tw32(MAC_TX_LENGTHS,
2064 ((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
2065 (6 << TX_LENGTHS_IPG_SHIFT) |
2066 (32 << TX_LENGTHS_SLOT_TIME_SHIFT)));
2067
2068 if (phydev->link != tp->old_link ||
2069 phydev->speed != tp->link_config.active_speed ||
2070 phydev->duplex != tp->link_config.active_duplex ||
2071 oldflowctrl != tp->link_config.active_flowctrl)
2072 linkmesg = 1;
2073
2074 tp->old_link = phydev->link;
2075 tp->link_config.active_speed = phydev->speed;
2076 tp->link_config.active_duplex = phydev->duplex;
2077
2078 spin_unlock_bh(lock: &tp->lock);
2079
2080 if (linkmesg)
2081 tg3_link_report(tp);
2082}
2083
2084static int tg3_phy_init(struct tg3 *tp)
2085{
2086 struct phy_device *phydev;
2087
2088 if (tp->phy_flags & TG3_PHYFLG_IS_CONNECTED)
2089 return 0;
2090
2091 /* Bring the PHY back to a known state. */
2092 tg3_bmcr_reset(tp);
2093
2094 phydev = mdiobus_get_phy(bus: tp->mdio_bus, addr: tp->phy_addr);
2095
2096 /* Attach the MAC to the PHY. */
2097 phydev = phy_connect(dev: tp->dev, bus_id: phydev_name(phydev),
2098 handler: tg3_adjust_link, interface: phydev->interface);
2099 if (IS_ERR(ptr: phydev)) {
2100 dev_err(&tp->pdev->dev, "Could not attach to PHY\n");
2101 return PTR_ERR(ptr: phydev);
2102 }
2103
2104 /* Mask with MAC supported features. */
2105 switch (phydev->interface) {
2106 case PHY_INTERFACE_MODE_GMII:
2107 case PHY_INTERFACE_MODE_RGMII:
2108 if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY)) {
2109 phy_set_max_speed(phydev, SPEED_1000);
2110 phy_support_asym_pause(phydev);
2111 break;
2112 }
2113 fallthrough;
2114 case PHY_INTERFACE_MODE_MII:
2115 phy_set_max_speed(phydev, SPEED_100);
2116 phy_support_asym_pause(phydev);
2117 break;
2118 default:
2119 phy_disconnect(phydev: mdiobus_get_phy(bus: tp->mdio_bus, addr: tp->phy_addr));
2120 return -EINVAL;
2121 }
2122
2123 tp->phy_flags |= TG3_PHYFLG_IS_CONNECTED;
2124
2125 phy_attached_info(phydev);
2126
2127 return 0;
2128}
2129
2130static void tg3_phy_start(struct tg3 *tp)
2131{
2132 struct phy_device *phydev;
2133
2134 if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED))
2135 return;
2136
2137 phydev = mdiobus_get_phy(bus: tp->mdio_bus, addr: tp->phy_addr);
2138
2139 if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER) {
2140 tp->phy_flags &= ~TG3_PHYFLG_IS_LOW_POWER;
2141 phydev->speed = tp->link_config.speed;
2142 phydev->duplex = tp->link_config.duplex;
2143 phydev->autoneg = tp->link_config.autoneg;
2144 ethtool_convert_legacy_u32_to_link_mode(
2145 dst: phydev->advertising, legacy_u32: tp->link_config.advertising);
2146 }
2147
2148 phy_start(phydev);
2149
2150 phy_start_aneg(phydev);
2151}
2152
2153static void tg3_phy_stop(struct tg3 *tp)
2154{
2155 if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED))
2156 return;
2157
2158 phy_stop(phydev: mdiobus_get_phy(bus: tp->mdio_bus, addr: tp->phy_addr));
2159}
2160
2161static void tg3_phy_fini(struct tg3 *tp)
2162{
2163 if (tp->phy_flags & TG3_PHYFLG_IS_CONNECTED) {
2164 phy_disconnect(phydev: mdiobus_get_phy(bus: tp->mdio_bus, addr: tp->phy_addr));
2165 tp->phy_flags &= ~TG3_PHYFLG_IS_CONNECTED;
2166 }
2167}
2168
2169static int tg3_phy_set_extloopbk(struct tg3 *tp)
2170{
2171 int err;
2172 u32 val;
2173
2174 if (tp->phy_flags & TG3_PHYFLG_IS_FET)
2175 return 0;
2176
2177 if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5401) {
2178 /* Cannot do read-modify-write on 5401 */
2179 err = tg3_phy_auxctl_write(tp,
2180 MII_TG3_AUXCTL_SHDWSEL_AUXCTL,
2181 MII_TG3_AUXCTL_ACTL_EXTLOOPBK |
2182 0x4c20);
2183 goto done;
2184 }
2185
2186 err = tg3_phy_auxctl_read(tp,
2187 MII_TG3_AUXCTL_SHDWSEL_AUXCTL, val: &val);
2188 if (err)
2189 return err;
2190
2191 val |= MII_TG3_AUXCTL_ACTL_EXTLOOPBK;
2192 err = tg3_phy_auxctl_write(tp,
2193 MII_TG3_AUXCTL_SHDWSEL_AUXCTL, set: val);
2194
2195done:
2196 return err;
2197}
2198
2199static void tg3_phy_fet_toggle_apd(struct tg3 *tp, bool enable)
2200{
2201 u32 phytest;
2202
2203 if (!tg3_readphy(tp, MII_TG3_FET_TEST, val: &phytest)) {
2204 u32 phy;
2205
2206 tg3_writephy(tp, MII_TG3_FET_TEST,
2207 val: phytest | MII_TG3_FET_SHADOW_EN);
2208 if (!tg3_readphy(tp, MII_TG3_FET_SHDW_AUXSTAT2, val: &phy)) {
2209 if (enable)
2210 phy |= MII_TG3_FET_SHDW_AUXSTAT2_APD;
2211 else
2212 phy &= ~MII_TG3_FET_SHDW_AUXSTAT2_APD;
2213 tg3_writephy(tp, MII_TG3_FET_SHDW_AUXSTAT2, val: phy);
2214 }
2215 tg3_writephy(tp, MII_TG3_FET_TEST, val: phytest);
2216 }
2217}
2218
2219static void tg3_phy_toggle_apd(struct tg3 *tp, bool enable)
2220{
2221 u32 reg;
2222
2223 if (!tg3_flag(tp, 5705_PLUS) ||
2224 (tg3_flag(tp, 5717_PLUS) &&
2225 (tp->phy_flags & TG3_PHYFLG_MII_SERDES)))
2226 return;
2227
2228 if (tp->phy_flags & TG3_PHYFLG_IS_FET) {
2229 tg3_phy_fet_toggle_apd(tp, enable);
2230 return;
2231 }
2232
2233 reg = MII_TG3_MISC_SHDW_SCR5_LPED |
2234 MII_TG3_MISC_SHDW_SCR5_DLPTLM |
2235 MII_TG3_MISC_SHDW_SCR5_SDTL |
2236 MII_TG3_MISC_SHDW_SCR5_C125OE;
2237 if (tg3_asic_rev(tp) != ASIC_REV_5784 || !enable)
2238 reg |= MII_TG3_MISC_SHDW_SCR5_DLLAPD;
2239
2240 tg3_phy_shdw_write(tp, MII_TG3_MISC_SHDW_SCR5_SEL, val: reg);
2241
2242
2243 reg = MII_TG3_MISC_SHDW_APD_WKTM_84MS;
2244 if (enable)
2245 reg |= MII_TG3_MISC_SHDW_APD_ENABLE;
2246
2247 tg3_phy_shdw_write(tp, MII_TG3_MISC_SHDW_APD_SEL, val: reg);
2248}
2249
2250static void tg3_phy_toggle_automdix(struct tg3 *tp, bool enable)
2251{
2252 u32 phy;
2253
2254 if (!tg3_flag(tp, 5705_PLUS) ||
2255 (tp->phy_flags & TG3_PHYFLG_ANY_SERDES))
2256 return;
2257
2258 if (tp->phy_flags & TG3_PHYFLG_IS_FET) {
2259 u32 ephy;
2260
2261 if (!tg3_readphy(tp, MII_TG3_FET_TEST, val: &ephy)) {
2262 u32 reg = MII_TG3_FET_SHDW_MISCCTRL;
2263
2264 tg3_writephy(tp, MII_TG3_FET_TEST,
2265 val: ephy | MII_TG3_FET_SHADOW_EN);
2266 if (!tg3_readphy(tp, reg, val: &phy)) {
2267 if (enable)
2268 phy |= MII_TG3_FET_SHDW_MISCCTRL_MDIX;
2269 else
2270 phy &= ~MII_TG3_FET_SHDW_MISCCTRL_MDIX;
2271 tg3_writephy(tp, reg, val: phy);
2272 }
2273 tg3_writephy(tp, MII_TG3_FET_TEST, val: ephy);
2274 }
2275 } else {
2276 int ret;
2277
2278 ret = tg3_phy_auxctl_read(tp,
2279 MII_TG3_AUXCTL_SHDWSEL_MISC, val: &phy);
2280 if (!ret) {
2281 if (enable)
2282 phy |= MII_TG3_AUXCTL_MISC_FORCE_AMDIX;
2283 else
2284 phy &= ~MII_TG3_AUXCTL_MISC_FORCE_AMDIX;
2285 tg3_phy_auxctl_write(tp,
2286 MII_TG3_AUXCTL_SHDWSEL_MISC, set: phy);
2287 }
2288 }
2289}
2290
2291static void tg3_phy_set_wirespeed(struct tg3 *tp)
2292{
2293 int ret;
2294 u32 val;
2295
2296 if (tp->phy_flags & TG3_PHYFLG_NO_ETH_WIRE_SPEED)
2297 return;
2298
2299 ret = tg3_phy_auxctl_read(tp, MII_TG3_AUXCTL_SHDWSEL_MISC, val: &val);
2300 if (!ret)
2301 tg3_phy_auxctl_write(tp, MII_TG3_AUXCTL_SHDWSEL_MISC,
2302 set: val | MII_TG3_AUXCTL_MISC_WIRESPD_EN);
2303}
2304
2305static void tg3_phy_apply_otp(struct tg3 *tp)
2306{
2307 u32 otp, phy;
2308
2309 if (!tp->phy_otp)
2310 return;
2311
2312 otp = tp->phy_otp;
2313
2314 if (tg3_phy_toggle_auxctl_smdsp(tp, enable: true))
2315 return;
2316
2317 phy = ((otp & TG3_OTP_AGCTGT_MASK) >> TG3_OTP_AGCTGT_SHIFT);
2318 phy |= MII_TG3_DSP_TAP1_AGCTGT_DFLT;
2319 tg3_phydsp_write(tp, MII_TG3_DSP_TAP1, val: phy);
2320
2321 phy = ((otp & TG3_OTP_HPFFLTR_MASK) >> TG3_OTP_HPFFLTR_SHIFT) |
2322 ((otp & TG3_OTP_HPFOVER_MASK) >> TG3_OTP_HPFOVER_SHIFT);
2323 tg3_phydsp_write(tp, MII_TG3_DSP_AADJ1CH0, val: phy);
2324
2325 phy = ((otp & TG3_OTP_LPFDIS_MASK) >> TG3_OTP_LPFDIS_SHIFT);
2326 phy |= MII_TG3_DSP_AADJ1CH3_ADCCKADJ;
2327 tg3_phydsp_write(tp, MII_TG3_DSP_AADJ1CH3, val: phy);
2328
2329 phy = ((otp & TG3_OTP_VDAC_MASK) >> TG3_OTP_VDAC_SHIFT);
2330 tg3_phydsp_write(tp, MII_TG3_DSP_EXP75, val: phy);
2331
2332 phy = ((otp & TG3_OTP_10BTAMP_MASK) >> TG3_OTP_10BTAMP_SHIFT);
2333 tg3_phydsp_write(tp, MII_TG3_DSP_EXP96, val: phy);
2334
2335 phy = ((otp & TG3_OTP_ROFF_MASK) >> TG3_OTP_ROFF_SHIFT) |
2336 ((otp & TG3_OTP_RCOFF_MASK) >> TG3_OTP_RCOFF_SHIFT);
2337 tg3_phydsp_write(tp, MII_TG3_DSP_EXP97, val: phy);
2338
2339 tg3_phy_toggle_auxctl_smdsp(tp, enable: false);
2340}
2341
2342static void tg3_eee_pull_config(struct tg3 *tp, struct ethtool_keee *eee)
2343{
2344 u32 val;
2345 struct ethtool_keee *dest = &tp->eee;
2346
2347 if (!(tp->phy_flags & TG3_PHYFLG_EEE_CAP))
2348 return;
2349
2350 if (eee)
2351 dest = eee;
2352
2353 if (tg3_phy_cl45_read(tp, MDIO_MMD_AN, TG3_CL45_D7_EEERES_STAT, val: &val))
2354 return;
2355
2356 /* Pull eee_active */
2357 if (val == TG3_CL45_D7_EEERES_STAT_LP_1000T ||
2358 val == TG3_CL45_D7_EEERES_STAT_LP_100TX) {
2359 dest->eee_active = 1;
2360 } else
2361 dest->eee_active = 0;
2362
2363 /* Pull lp advertised settings */
2364 if (tg3_phy_cl45_read(tp, MDIO_MMD_AN, MDIO_AN_EEE_LPABLE, val: &val))
2365 return;
2366 mii_eee_cap1_mod_linkmode_t(adv: dest->lp_advertised, val);
2367
2368 /* Pull advertised and eee_enabled settings */
2369 if (tg3_phy_cl45_read(tp, MDIO_MMD_AN, MDIO_AN_EEE_ADV, val: &val))
2370 return;
2371 dest->eee_enabled = !!val;
2372 mii_eee_cap1_mod_linkmode_t(adv: dest->advertised, val);
2373
2374 /* Pull tx_lpi_enabled */
2375 val = tr32(TG3_CPMU_EEE_MODE);
2376 dest->tx_lpi_enabled = !!(val & TG3_CPMU_EEEMD_LPI_IN_TX);
2377
2378 /* Pull lpi timer value */
2379 dest->tx_lpi_timer = tr32(TG3_CPMU_EEE_DBTMR1) & 0xffff;
2380}
2381
2382static void tg3_phy_eee_adjust(struct tg3 *tp, bool current_link_up)
2383{
2384 u32 val;
2385
2386 if (!(tp->phy_flags & TG3_PHYFLG_EEE_CAP))
2387 return;
2388
2389 tp->setlpicnt = 0;
2390
2391 if (tp->link_config.autoneg == AUTONEG_ENABLE &&
2392 current_link_up &&
2393 tp->link_config.active_duplex == DUPLEX_FULL &&
2394 (tp->link_config.active_speed == SPEED_100 ||
2395 tp->link_config.active_speed == SPEED_1000)) {
2396 u32 eeectl;
2397
2398 if (tp->link_config.active_speed == SPEED_1000)
2399 eeectl = TG3_CPMU_EEE_CTRL_EXIT_16_5_US;
2400 else
2401 eeectl = TG3_CPMU_EEE_CTRL_EXIT_36_US;
2402
2403 tw32(TG3_CPMU_EEE_CTRL, eeectl);
2404
2405 tg3_eee_pull_config(tp, NULL);
2406 if (tp->eee.eee_active)
2407 tp->setlpicnt = 2;
2408 }
2409
2410 if (!tp->setlpicnt) {
2411 if (current_link_up &&
2412 !tg3_phy_toggle_auxctl_smdsp(tp, enable: true)) {
2413 tg3_phydsp_write(tp, MII_TG3_DSP_TAP26, val: 0x0000);
2414 tg3_phy_toggle_auxctl_smdsp(tp, enable: false);
2415 }
2416
2417 val = tr32(TG3_CPMU_EEE_MODE);
2418 tw32(TG3_CPMU_EEE_MODE, val & ~TG3_CPMU_EEEMD_LPI_ENABLE);
2419 }
2420}
2421
2422static void tg3_phy_eee_enable(struct tg3 *tp)
2423{
2424 u32 val;
2425
2426 if (tp->link_config.active_speed == SPEED_1000 &&
2427 (tg3_asic_rev(tp) == ASIC_REV_5717 ||
2428 tg3_asic_rev(tp) == ASIC_REV_5719 ||
2429 tg3_flag(tp, 57765_CLASS)) &&
2430 !tg3_phy_toggle_auxctl_smdsp(tp, enable: true)) {
2431 val = MII_TG3_DSP_TAP26_ALNOKO |
2432 MII_TG3_DSP_TAP26_RMRXSTO;
2433 tg3_phydsp_write(tp, MII_TG3_DSP_TAP26, val);
2434 tg3_phy_toggle_auxctl_smdsp(tp, enable: false);
2435 }
2436
2437 val = tr32(TG3_CPMU_EEE_MODE);
2438 tw32(TG3_CPMU_EEE_MODE, val | TG3_CPMU_EEEMD_LPI_ENABLE);
2439}
2440
2441static int tg3_wait_macro_done(struct tg3 *tp)
2442{
2443 int limit = 100;
2444
2445 while (limit--) {
2446 u32 tmp32;
2447
2448 if (!tg3_readphy(tp, MII_TG3_DSP_CONTROL, val: &tmp32)) {
2449 if ((tmp32 & 0x1000) == 0)
2450 break;
2451 }
2452 }
2453 if (limit < 0)
2454 return -EBUSY;
2455
2456 return 0;
2457}
2458
2459static int tg3_phy_write_and_check_testpat(struct tg3 *tp, int *resetp)
2460{
2461 static const u32 test_pat[4][6] = {
2462 { 0x00005555, 0x00000005, 0x00002aaa, 0x0000000a, 0x00003456, 0x00000003 },
2463 { 0x00002aaa, 0x0000000a, 0x00003333, 0x00000003, 0x0000789a, 0x00000005 },
2464 { 0x00005a5a, 0x00000005, 0x00002a6a, 0x0000000a, 0x00001bcd, 0x00000003 },
2465 { 0x00002a5a, 0x0000000a, 0x000033c3, 0x00000003, 0x00002ef1, 0x00000005 }
2466 };
2467 int chan;
2468
2469 for (chan = 0; chan < 4; chan++) {
2470 int i;
2471
2472 tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
2473 val: (chan * 0x2000) | 0x0200);
2474 tg3_writephy(tp, MII_TG3_DSP_CONTROL, val: 0x0002);
2475
2476 for (i = 0; i < 6; i++)
2477 tg3_writephy(tp, MII_TG3_DSP_RW_PORT,
2478 val: test_pat[chan][i]);
2479
2480 tg3_writephy(tp, MII_TG3_DSP_CONTROL, val: 0x0202);
2481 if (tg3_wait_macro_done(tp)) {
2482 *resetp = 1;
2483 return -EBUSY;
2484 }
2485
2486 tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
2487 val: (chan * 0x2000) | 0x0200);
2488 tg3_writephy(tp, MII_TG3_DSP_CONTROL, val: 0x0082);
2489 if (tg3_wait_macro_done(tp)) {
2490 *resetp = 1;
2491 return -EBUSY;
2492 }
2493
2494 tg3_writephy(tp, MII_TG3_DSP_CONTROL, val: 0x0802);
2495 if (tg3_wait_macro_done(tp)) {
2496 *resetp = 1;
2497 return -EBUSY;
2498 }
2499
2500 for (i = 0; i < 6; i += 2) {
2501 u32 low, high;
2502
2503 if (tg3_readphy(tp, MII_TG3_DSP_RW_PORT, val: &low) ||
2504 tg3_readphy(tp, MII_TG3_DSP_RW_PORT, val: &high) ||
2505 tg3_wait_macro_done(tp)) {
2506 *resetp = 1;
2507 return -EBUSY;
2508 }
2509 low &= 0x7fff;
2510 high &= 0x000f;
2511 if (low != test_pat[chan][i] ||
2512 high != test_pat[chan][i+1]) {
2513 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, val: 0x000b);
2514 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, val: 0x4001);
2515 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, val: 0x4005);
2516
2517 return -EBUSY;
2518 }
2519 }
2520 }
2521
2522 return 0;
2523}
2524
2525static int tg3_phy_reset_chanpat(struct tg3 *tp)
2526{
2527 int chan;
2528
2529 for (chan = 0; chan < 4; chan++) {
2530 int i;
2531
2532 tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
2533 val: (chan * 0x2000) | 0x0200);
2534 tg3_writephy(tp, MII_TG3_DSP_CONTROL, val: 0x0002);
2535 for (i = 0; i < 6; i++)
2536 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, val: 0x000);
2537 tg3_writephy(tp, MII_TG3_DSP_CONTROL, val: 0x0202);
2538 if (tg3_wait_macro_done(tp))
2539 return -EBUSY;
2540 }
2541
2542 return 0;
2543}
2544
2545static int tg3_phy_reset_5703_4_5(struct tg3 *tp)
2546{
2547 u32 reg32, phy9_orig;
2548 int retries, do_phy_reset, err;
2549
2550 retries = 10;
2551 do_phy_reset = 1;
2552 do {
2553 if (do_phy_reset) {
2554 err = tg3_bmcr_reset(tp);
2555 if (err)
2556 return err;
2557 do_phy_reset = 0;
2558 }
2559
2560 /* Disable transmitter and interrupt. */
2561 if (tg3_readphy(tp, MII_TG3_EXT_CTRL, val: &reg32))
2562 continue;
2563
2564 reg32 |= 0x3000;
2565 tg3_writephy(tp, MII_TG3_EXT_CTRL, val: reg32);
2566
2567 /* Set full-duplex, 1000 mbps. */
2568 tg3_writephy(tp, MII_BMCR,
2569 BMCR_FULLDPLX | BMCR_SPEED1000);
2570
2571 /* Set to master mode. */
2572 if (tg3_readphy(tp, MII_CTRL1000, val: &phy9_orig))
2573 continue;
2574
2575 tg3_writephy(tp, MII_CTRL1000,
2576 CTL1000_AS_MASTER | CTL1000_ENABLE_MASTER);
2577
2578 err = tg3_phy_toggle_auxctl_smdsp(tp, enable: true);
2579 if (err)
2580 return err;
2581
2582 /* Block the PHY control access. */
2583 tg3_phydsp_write(tp, reg: 0x8005, val: 0x0800);
2584
2585 err = tg3_phy_write_and_check_testpat(tp, resetp: &do_phy_reset);
2586 if (!err)
2587 break;
2588 } while (--retries);
2589
2590 err = tg3_phy_reset_chanpat(tp);
2591 if (err)
2592 return err;
2593
2594 tg3_phydsp_write(tp, reg: 0x8005, val: 0x0000);
2595
2596 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, val: 0x8200);
2597 tg3_writephy(tp, MII_TG3_DSP_CONTROL, val: 0x0000);
2598
2599 tg3_phy_toggle_auxctl_smdsp(tp, enable: false);
2600
2601 tg3_writephy(tp, MII_CTRL1000, val: phy9_orig);
2602
2603 err = tg3_readphy(tp, MII_TG3_EXT_CTRL, val: &reg32);
2604 if (err)
2605 return err;
2606
2607 reg32 &= ~0x3000;
2608 tg3_writephy(tp, MII_TG3_EXT_CTRL, val: reg32);
2609
2610 return 0;
2611}
2612
2613static void tg3_carrier_off(struct tg3 *tp)
2614{
2615 netif_carrier_off(dev: tp->dev);
2616 tp->link_up = false;
2617}
2618
2619static void tg3_warn_mgmt_link_flap(struct tg3 *tp)
2620{
2621 if (tg3_flag(tp, ENABLE_ASF))
2622 netdev_warn(dev: tp->dev,
2623 format: "Management side-band traffic will be interrupted during phy settings change\n");
2624}
2625
2626/* This will reset the tigon3 PHY if there is no valid
2627 * link unless the FORCE argument is non-zero.
2628 */
2629static int tg3_phy_reset(struct tg3 *tp)
2630{
2631 u32 val, cpmuctrl;
2632 int err;
2633
2634 if (tg3_asic_rev(tp) == ASIC_REV_5906) {
2635 val = tr32(GRC_MISC_CFG);
2636 tw32_f(GRC_MISC_CFG, val & ~GRC_MISC_CFG_EPHY_IDDQ);
2637 udelay(usec: 40);
2638 }
2639 err = tg3_readphy(tp, MII_BMSR, val: &val);
2640 err |= tg3_readphy(tp, MII_BMSR, val: &val);
2641 if (err != 0)
2642 return -EBUSY;
2643
2644 if (netif_running(dev: tp->dev) && tp->link_up) {
2645 netif_carrier_off(dev: tp->dev);
2646 tg3_link_report(tp);
2647 }
2648
2649 if (tg3_asic_rev(tp) == ASIC_REV_5703 ||
2650 tg3_asic_rev(tp) == ASIC_REV_5704 ||
2651 tg3_asic_rev(tp) == ASIC_REV_5705) {
2652 err = tg3_phy_reset_5703_4_5(tp);
2653 if (err)
2654 return err;
2655 goto out;
2656 }
2657
2658 cpmuctrl = 0;
2659 if (tg3_asic_rev(tp) == ASIC_REV_5784 &&
2660 tg3_chip_rev(tp) != CHIPREV_5784_AX) {
2661 cpmuctrl = tr32(TG3_CPMU_CTRL);
2662 if (cpmuctrl & CPMU_CTRL_GPHY_10MB_RXONLY)
2663 tw32(TG3_CPMU_CTRL,
2664 cpmuctrl & ~CPMU_CTRL_GPHY_10MB_RXONLY);
2665 }
2666
2667 err = tg3_bmcr_reset(tp);
2668 if (err)
2669 return err;
2670
2671 if (cpmuctrl & CPMU_CTRL_GPHY_10MB_RXONLY) {
2672 val = MII_TG3_DSP_EXP8_AEDW | MII_TG3_DSP_EXP8_REJ2MHz;
2673 tg3_phydsp_write(tp, MII_TG3_DSP_EXP8, val);
2674
2675 tw32(TG3_CPMU_CTRL, cpmuctrl);
2676 }
2677
2678 if (tg3_chip_rev(tp) == CHIPREV_5784_AX ||
2679 tg3_chip_rev(tp) == CHIPREV_5761_AX) {
2680 val = tr32(TG3_CPMU_LSPD_1000MB_CLK);
2681 if ((val & CPMU_LSPD_1000MB_MACCLK_MASK) ==
2682 CPMU_LSPD_1000MB_MACCLK_12_5) {
2683 val &= ~CPMU_LSPD_1000MB_MACCLK_MASK;
2684 udelay(usec: 40);
2685 tw32_f(TG3_CPMU_LSPD_1000MB_CLK, val);
2686 }
2687 }
2688
2689 if (tg3_flag(tp, 5717_PLUS) &&
2690 (tp->phy_flags & TG3_PHYFLG_MII_SERDES))
2691 return 0;
2692
2693 tg3_phy_apply_otp(tp);
2694
2695 if (tp->phy_flags & TG3_PHYFLG_ENABLE_APD)
2696 tg3_phy_toggle_apd(tp, enable: true);
2697 else
2698 tg3_phy_toggle_apd(tp, enable: false);
2699
2700out:
2701 if ((tp->phy_flags & TG3_PHYFLG_ADC_BUG) &&
2702 !tg3_phy_toggle_auxctl_smdsp(tp, enable: true)) {
2703 tg3_phydsp_write(tp, reg: 0x201f, val: 0x2aaa);
2704 tg3_phydsp_write(tp, reg: 0x000a, val: 0x0323);
2705 tg3_phy_toggle_auxctl_smdsp(tp, enable: false);
2706 }
2707
2708 if (tp->phy_flags & TG3_PHYFLG_5704_A0_BUG) {
2709 tg3_writephy(tp, MII_TG3_MISC_SHDW, val: 0x8d68);
2710 tg3_writephy(tp, MII_TG3_MISC_SHDW, val: 0x8d68);
2711 }
2712
2713 if (tp->phy_flags & TG3_PHYFLG_BER_BUG) {
2714 if (!tg3_phy_toggle_auxctl_smdsp(tp, enable: true)) {
2715 tg3_phydsp_write(tp, reg: 0x000a, val: 0x310b);
2716 tg3_phydsp_write(tp, reg: 0x201f, val: 0x9506);
2717 tg3_phydsp_write(tp, reg: 0x401f, val: 0x14e2);
2718 tg3_phy_toggle_auxctl_smdsp(tp, enable: false);
2719 }
2720 } else if (tp->phy_flags & TG3_PHYFLG_JITTER_BUG) {
2721 if (!tg3_phy_toggle_auxctl_smdsp(tp, enable: true)) {
2722 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, val: 0x000a);
2723 if (tp->phy_flags & TG3_PHYFLG_ADJUST_TRIM) {
2724 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, val: 0x110b);
2725 tg3_writephy(tp, MII_TG3_TEST1,
2726 MII_TG3_TEST1_TRIM_EN | 0x4);
2727 } else
2728 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, val: 0x010b);
2729
2730 tg3_phy_toggle_auxctl_smdsp(tp, enable: false);
2731 }
2732 }
2733
2734 /* Set Extended packet length bit (bit 14) on all chips that */
2735 /* support jumbo frames */
2736 if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5401) {
2737 /* Cannot do read-modify-write on 5401 */
2738 tg3_phy_auxctl_write(tp, MII_TG3_AUXCTL_SHDWSEL_AUXCTL, set: 0x4c20);
2739 } else if (tg3_flag(tp, JUMBO_CAPABLE)) {
2740 /* Set bit 14 with read-modify-write to preserve other bits */
2741 err = tg3_phy_auxctl_read(tp,
2742 MII_TG3_AUXCTL_SHDWSEL_AUXCTL, val: &val);
2743 if (!err)
2744 tg3_phy_auxctl_write(tp, MII_TG3_AUXCTL_SHDWSEL_AUXCTL,
2745 set: val | MII_TG3_AUXCTL_ACTL_EXTPKTLEN);
2746 }
2747
2748 /* Set phy register 0x10 bit 0 to high fifo elasticity to support
2749 * jumbo frames transmission.
2750 */
2751 if (tg3_flag(tp, JUMBO_CAPABLE)) {
2752 if (!tg3_readphy(tp, MII_TG3_EXT_CTRL, val: &val))
2753 tg3_writephy(tp, MII_TG3_EXT_CTRL,
2754 val: val | MII_TG3_EXT_CTRL_FIFO_ELASTIC);
2755 }
2756
2757 if (tg3_asic_rev(tp) == ASIC_REV_5906) {
2758 /* adjust output voltage */
2759 tg3_writephy(tp, MII_TG3_FET_PTEST, val: 0x12);
2760 }
2761
2762 if (tg3_chip_rev_id(tp) == CHIPREV_ID_5762_A0)
2763 tg3_phydsp_write(tp, reg: 0xffb, val: 0x4000);
2764
2765 tg3_phy_toggle_automdix(tp, enable: true);
2766 tg3_phy_set_wirespeed(tp);
2767 return 0;
2768}
2769
2770#define TG3_GPIO_MSG_DRVR_PRES 0x00000001
2771#define TG3_GPIO_MSG_NEED_VAUX 0x00000002
2772#define TG3_GPIO_MSG_MASK (TG3_GPIO_MSG_DRVR_PRES | \
2773 TG3_GPIO_MSG_NEED_VAUX)
2774#define TG3_GPIO_MSG_ALL_DRVR_PRES_MASK \
2775 ((TG3_GPIO_MSG_DRVR_PRES << 0) | \
2776 (TG3_GPIO_MSG_DRVR_PRES << 4) | \
2777 (TG3_GPIO_MSG_DRVR_PRES << 8) | \
2778 (TG3_GPIO_MSG_DRVR_PRES << 12))
2779
2780#define TG3_GPIO_MSG_ALL_NEED_VAUX_MASK \
2781 ((TG3_GPIO_MSG_NEED_VAUX << 0) | \
2782 (TG3_GPIO_MSG_NEED_VAUX << 4) | \
2783 (TG3_GPIO_MSG_NEED_VAUX << 8) | \
2784 (TG3_GPIO_MSG_NEED_VAUX << 12))
2785
2786static inline u32 tg3_set_function_status(struct tg3 *tp, u32 newstat)
2787{
2788 u32 status, shift;
2789
2790 if (tg3_asic_rev(tp) == ASIC_REV_5717 ||
2791 tg3_asic_rev(tp) == ASIC_REV_5719)
2792 status = tg3_ape_read32(tp, TG3_APE_GPIO_MSG);
2793 else
2794 status = tr32(TG3_CPMU_DRV_STATUS);
2795
2796 shift = TG3_APE_GPIO_MSG_SHIFT + 4 * tp->pci_fn;
2797 status &= ~(TG3_GPIO_MSG_MASK << shift);
2798 status |= (newstat << shift);
2799
2800 if (tg3_asic_rev(tp) == ASIC_REV_5717 ||
2801 tg3_asic_rev(tp) == ASIC_REV_5719)
2802 tg3_ape_write32(tp, TG3_APE_GPIO_MSG, val: status);
2803 else
2804 tw32(TG3_CPMU_DRV_STATUS, status);
2805
2806 return status >> TG3_APE_GPIO_MSG_SHIFT;
2807}
2808
2809static inline int tg3_pwrsrc_switch_to_vmain(struct tg3 *tp)
2810{
2811 if (!tg3_flag(tp, IS_NIC))
2812 return 0;
2813
2814 if (tg3_asic_rev(tp) == ASIC_REV_5717 ||
2815 tg3_asic_rev(tp) == ASIC_REV_5719 ||
2816 tg3_asic_rev(tp) == ASIC_REV_5720) {
2817 if (tg3_ape_lock(tp, TG3_APE_LOCK_GPIO))
2818 return -EIO;
2819
2820 tg3_set_function_status(tp, TG3_GPIO_MSG_DRVR_PRES);
2821
2822 tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl,
2823 TG3_GRC_LCLCTL_PWRSW_DELAY);
2824
2825 tg3_ape_unlock(tp, TG3_APE_LOCK_GPIO);
2826 } else {
2827 tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl,
2828 TG3_GRC_LCLCTL_PWRSW_DELAY);
2829 }
2830
2831 return 0;
2832}
2833
2834static void tg3_pwrsrc_die_with_vmain(struct tg3 *tp)
2835{
2836 u32 grc_local_ctrl;
2837
2838 if (!tg3_flag(tp, IS_NIC) ||
2839 tg3_asic_rev(tp) == ASIC_REV_5700 ||
2840 tg3_asic_rev(tp) == ASIC_REV_5701)
2841 return;
2842
2843 grc_local_ctrl = tp->grc_local_ctrl | GRC_LCLCTRL_GPIO_OE1;
2844
2845 tw32_wait_f(GRC_LOCAL_CTRL,
2846 grc_local_ctrl | GRC_LCLCTRL_GPIO_OUTPUT1,
2847 TG3_GRC_LCLCTL_PWRSW_DELAY);
2848
2849 tw32_wait_f(GRC_LOCAL_CTRL,
2850 grc_local_ctrl,
2851 TG3_GRC_LCLCTL_PWRSW_DELAY);
2852
2853 tw32_wait_f(GRC_LOCAL_CTRL,
2854 grc_local_ctrl | GRC_LCLCTRL_GPIO_OUTPUT1,
2855 TG3_GRC_LCLCTL_PWRSW_DELAY);
2856}
2857
2858static void tg3_pwrsrc_switch_to_vaux(struct tg3 *tp)
2859{
2860 if (!tg3_flag(tp, IS_NIC))
2861 return;
2862
2863 if (tg3_asic_rev(tp) == ASIC_REV_5700 ||
2864 tg3_asic_rev(tp) == ASIC_REV_5701) {
2865 tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2866 (GRC_LCLCTRL_GPIO_OE0 |
2867 GRC_LCLCTRL_GPIO_OE1 |
2868 GRC_LCLCTRL_GPIO_OE2 |
2869 GRC_LCLCTRL_GPIO_OUTPUT0 |
2870 GRC_LCLCTRL_GPIO_OUTPUT1),
2871 TG3_GRC_LCLCTL_PWRSW_DELAY);
2872 } else if (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5761 ||
2873 tp->pdev->device == TG3PCI_DEVICE_TIGON3_5761S) {
2874 /* The 5761 non-e device swaps GPIO 0 and GPIO 2. */
2875 u32 grc_local_ctrl = GRC_LCLCTRL_GPIO_OE0 |
2876 GRC_LCLCTRL_GPIO_OE1 |
2877 GRC_LCLCTRL_GPIO_OE2 |
2878 GRC_LCLCTRL_GPIO_OUTPUT0 |
2879 GRC_LCLCTRL_GPIO_OUTPUT1 |
2880 tp->grc_local_ctrl;
2881 tw32_wait_f(GRC_LOCAL_CTRL, grc_local_ctrl,
2882 TG3_GRC_LCLCTL_PWRSW_DELAY);
2883
2884 grc_local_ctrl |= GRC_LCLCTRL_GPIO_OUTPUT2;
2885 tw32_wait_f(GRC_LOCAL_CTRL, grc_local_ctrl,
2886 TG3_GRC_LCLCTL_PWRSW_DELAY);
2887
2888 grc_local_ctrl &= ~GRC_LCLCTRL_GPIO_OUTPUT0;
2889 tw32_wait_f(GRC_LOCAL_CTRL, grc_local_ctrl,
2890 TG3_GRC_LCLCTL_PWRSW_DELAY);
2891 } else {
2892 u32 no_gpio2;
2893 u32 grc_local_ctrl = 0;
2894
2895 /* Workaround to prevent overdrawing Amps. */
2896 if (tg3_asic_rev(tp) == ASIC_REV_5714) {
2897 grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE3;
2898 tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2899 grc_local_ctrl,
2900 TG3_GRC_LCLCTL_PWRSW_DELAY);
2901 }
2902
2903 /* On 5753 and variants, GPIO2 cannot be used. */
2904 no_gpio2 = tp->nic_sram_data_cfg &
2905 NIC_SRAM_DATA_CFG_NO_GPIO2;
2906
2907 grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE0 |
2908 GRC_LCLCTRL_GPIO_OE1 |
2909 GRC_LCLCTRL_GPIO_OE2 |
2910 GRC_LCLCTRL_GPIO_OUTPUT1 |
2911 GRC_LCLCTRL_GPIO_OUTPUT2;
2912 if (no_gpio2) {
2913 grc_local_ctrl &= ~(GRC_LCLCTRL_GPIO_OE2 |
2914 GRC_LCLCTRL_GPIO_OUTPUT2);
2915 }
2916 tw32_wait_f(GRC_LOCAL_CTRL,
2917 tp->grc_local_ctrl | grc_local_ctrl,
2918 TG3_GRC_LCLCTL_PWRSW_DELAY);
2919
2920 grc_local_ctrl |= GRC_LCLCTRL_GPIO_OUTPUT0;
2921
2922 tw32_wait_f(GRC_LOCAL_CTRL,
2923 tp->grc_local_ctrl | grc_local_ctrl,
2924 TG3_GRC_LCLCTL_PWRSW_DELAY);
2925
2926 if (!no_gpio2) {
2927 grc_local_ctrl &= ~GRC_LCLCTRL_GPIO_OUTPUT2;
2928 tw32_wait_f(GRC_LOCAL_CTRL,
2929 tp->grc_local_ctrl | grc_local_ctrl,
2930 TG3_GRC_LCLCTL_PWRSW_DELAY);
2931 }
2932 }
2933}
2934
2935static void tg3_frob_aux_power_5717(struct tg3 *tp, bool wol_enable)
2936{
2937 u32 msg = 0;
2938
2939 /* Serialize power state transitions */
2940 if (tg3_ape_lock(tp, TG3_APE_LOCK_GPIO))
2941 return;
2942
2943 if (tg3_flag(tp, ENABLE_ASF) || tg3_flag(tp, ENABLE_APE) || wol_enable)
2944 msg = TG3_GPIO_MSG_NEED_VAUX;
2945
2946 msg = tg3_set_function_status(tp, newstat: msg);
2947
2948 if (msg & TG3_GPIO_MSG_ALL_DRVR_PRES_MASK)
2949 goto done;
2950
2951 if (msg & TG3_GPIO_MSG_ALL_NEED_VAUX_MASK)
2952 tg3_pwrsrc_switch_to_vaux(tp);
2953 else
2954 tg3_pwrsrc_die_with_vmain(tp);
2955
2956done:
2957 tg3_ape_unlock(tp, TG3_APE_LOCK_GPIO);
2958}
2959
2960static void tg3_frob_aux_power(struct tg3 *tp, bool include_wol)
2961{
2962 bool need_vaux = false;
2963
2964 /* The GPIOs do something completely different on 57765. */
2965 if (!tg3_flag(tp, IS_NIC) || tg3_flag(tp, 57765_CLASS))
2966 return;
2967
2968 if (tg3_asic_rev(tp) == ASIC_REV_5717 ||
2969 tg3_asic_rev(tp) == ASIC_REV_5719 ||
2970 tg3_asic_rev(tp) == ASIC_REV_5720) {
2971 tg3_frob_aux_power_5717(tp, wol_enable: include_wol ?
2972 tg3_flag(tp, WOL_ENABLE) != 0 : 0);
2973 return;
2974 }
2975
2976 if (tp->pdev_peer && tp->pdev_peer != tp->pdev) {
2977 struct net_device *dev_peer;
2978
2979 dev_peer = pci_get_drvdata(pdev: tp->pdev_peer);
2980
2981 /* remove_one() may have been run on the peer. */
2982 if (dev_peer) {
2983 struct tg3 *tp_peer = netdev_priv(dev: dev_peer);
2984
2985 if (tg3_flag(tp_peer, INIT_COMPLETE))
2986 return;
2987
2988 if ((include_wol && tg3_flag(tp_peer, WOL_ENABLE)) ||
2989 tg3_flag(tp_peer, ENABLE_ASF))
2990 need_vaux = true;
2991 }
2992 }
2993
2994 if ((include_wol && tg3_flag(tp, WOL_ENABLE)) ||
2995 tg3_flag(tp, ENABLE_ASF))
2996 need_vaux = true;
2997
2998 if (need_vaux)
2999 tg3_pwrsrc_switch_to_vaux(tp);
3000 else
3001 tg3_pwrsrc_die_with_vmain(tp);
3002}
3003
3004static int tg3_5700_link_polarity(struct tg3 *tp, u32 speed)
3005{
3006 if (tp->led_ctrl == LED_CTRL_MODE_PHY_2)
3007 return 1;
3008 else if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5411) {
3009 if (speed != SPEED_10)
3010 return 1;
3011 } else if (speed == SPEED_10)
3012 return 1;
3013
3014 return 0;
3015}
3016
3017static bool tg3_phy_power_bug(struct tg3 *tp)
3018{
3019 switch (tg3_asic_rev(tp)) {
3020 case ASIC_REV_5700:
3021 case ASIC_REV_5704:
3022 return true;
3023 case ASIC_REV_5780:
3024 if (tp->phy_flags & TG3_PHYFLG_MII_SERDES)
3025 return true;
3026 return false;
3027 case ASIC_REV_5717:
3028 if (!tp->pci_fn)
3029 return true;
3030 return false;
3031 case ASIC_REV_5719:
3032 case ASIC_REV_5720:
3033 if ((tp->phy_flags & TG3_PHYFLG_PHY_SERDES) &&
3034 !tp->pci_fn)
3035 return true;
3036 return false;
3037 }
3038
3039 return false;
3040}
3041
3042static bool tg3_phy_led_bug(struct tg3 *tp)
3043{
3044 switch (tg3_asic_rev(tp)) {
3045 case ASIC_REV_5719:
3046 case ASIC_REV_5720:
3047 if ((tp->phy_flags & TG3_PHYFLG_MII_SERDES) &&
3048 !tp->pci_fn)
3049 return true;
3050 return false;
3051 }
3052
3053 return false;
3054}
3055
3056static void tg3_power_down_phy(struct tg3 *tp, bool do_low_power)
3057{
3058 u32 val;
3059
3060 if (tp->phy_flags & TG3_PHYFLG_KEEP_LINK_ON_PWRDN)
3061 return;
3062
3063 if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES) {
3064 if (tg3_asic_rev(tp) == ASIC_REV_5704) {
3065 u32 sg_dig_ctrl = tr32(SG_DIG_CTRL);
3066 u32 serdes_cfg = tr32(MAC_SERDES_CFG);
3067
3068 sg_dig_ctrl |=
3069 SG_DIG_USING_HW_AUTONEG | SG_DIG_SOFT_RESET;
3070 tw32(SG_DIG_CTRL, sg_dig_ctrl);
3071 tw32(MAC_SERDES_CFG, serdes_cfg | (1 << 15));
3072 }
3073 return;
3074 }
3075
3076 if (tg3_asic_rev(tp) == ASIC_REV_5906) {
3077 tg3_bmcr_reset(tp);
3078 val = tr32(GRC_MISC_CFG);
3079 tw32_f(GRC_MISC_CFG, val | GRC_MISC_CFG_EPHY_IDDQ);
3080 udelay(usec: 40);
3081 return;
3082 } else if (tp->phy_flags & TG3_PHYFLG_IS_FET) {
3083 u32 phytest;
3084 if (!tg3_readphy(tp, MII_TG3_FET_TEST, val: &phytest)) {
3085 u32 phy;
3086
3087 tg3_writephy(tp, MII_ADVERTISE, val: 0);
3088 tg3_writephy(tp, MII_BMCR,
3089 BMCR_ANENABLE | BMCR_ANRESTART);
3090
3091 tg3_writephy(tp, MII_TG3_FET_TEST,
3092 val: phytest | MII_TG3_FET_SHADOW_EN);
3093 if (!tg3_readphy(tp, MII_TG3_FET_SHDW_AUXMODE4, val: &phy)) {
3094 phy |= MII_TG3_FET_SHDW_AUXMODE4_SBPD;
3095 tg3_writephy(tp,
3096 MII_TG3_FET_SHDW_AUXMODE4,
3097 val: phy);
3098 }
3099 tg3_writephy(tp, MII_TG3_FET_TEST, val: phytest);
3100 }
3101 return;
3102 } else if (do_low_power) {
3103 if (!tg3_phy_led_bug(tp))
3104 tg3_writephy(tp, MII_TG3_EXT_CTRL,
3105 MII_TG3_EXT_CTRL_FORCE_LED_OFF);
3106
3107 val = MII_TG3_AUXCTL_PCTL_100TX_LPWR |
3108 MII_TG3_AUXCTL_PCTL_SPR_ISOLATE |
3109 MII_TG3_AUXCTL_PCTL_VREG_11V;
3110 tg3_phy_auxctl_write(tp, MII_TG3_AUXCTL_SHDWSEL_PWRCTL, set: val);
3111 }
3112
3113 /* The PHY should not be powered down on some chips because
3114 * of bugs.
3115 */
3116 if (tg3_phy_power_bug(tp))
3117 return;
3118
3119 if (tg3_chip_rev(tp) == CHIPREV_5784_AX ||
3120 tg3_chip_rev(tp) == CHIPREV_5761_AX) {
3121 val = tr32(TG3_CPMU_LSPD_1000MB_CLK);
3122 val &= ~CPMU_LSPD_1000MB_MACCLK_MASK;
3123 val |= CPMU_LSPD_1000MB_MACCLK_12_5;
3124 tw32_f(TG3_CPMU_LSPD_1000MB_CLK, val);
3125 }
3126
3127 tg3_writephy(tp, MII_BMCR, BMCR_PDOWN);
3128}
3129
3130/* tp->lock is held. */
3131static int tg3_nvram_lock(struct tg3 *tp)
3132{
3133 if (tg3_flag(tp, NVRAM)) {
3134 int i;
3135
3136 if (tp->nvram_lock_cnt == 0) {
3137 tw32(NVRAM_SWARB, SWARB_REQ_SET1);
3138 for (i = 0; i < 8000; i++) {
3139 if (tr32(NVRAM_SWARB) & SWARB_GNT1)
3140 break;
3141 udelay(usec: 20);
3142 }
3143 if (i == 8000) {
3144 tw32(NVRAM_SWARB, SWARB_REQ_CLR1);
3145 return -ENODEV;
3146 }
3147 }
3148 tp->nvram_lock_cnt++;
3149 }
3150 return 0;
3151}
3152
3153/* tp->lock is held. */
3154static void tg3_nvram_unlock(struct tg3 *tp)
3155{
3156 if (tg3_flag(tp, NVRAM)) {
3157 if (tp->nvram_lock_cnt > 0)
3158 tp->nvram_lock_cnt--;
3159 if (tp->nvram_lock_cnt == 0)
3160 tw32_f(NVRAM_SWARB, SWARB_REQ_CLR1);
3161 }
3162}
3163
3164/* tp->lock is held. */
3165static void tg3_enable_nvram_access(struct tg3 *tp)
3166{
3167 if (tg3_flag(tp, 5750_PLUS) && !tg3_flag(tp, PROTECTED_NVRAM)) {
3168 u32 nvaccess = tr32(NVRAM_ACCESS);
3169
3170 tw32(NVRAM_ACCESS, nvaccess | ACCESS_ENABLE);
3171 }
3172}
3173
3174/* tp->lock is held. */
3175static void tg3_disable_nvram_access(struct tg3 *tp)
3176{
3177 if (tg3_flag(tp, 5750_PLUS) && !tg3_flag(tp, PROTECTED_NVRAM)) {
3178 u32 nvaccess = tr32(NVRAM_ACCESS);
3179
3180 tw32(NVRAM_ACCESS, nvaccess & ~ACCESS_ENABLE);
3181 }
3182}
3183
3184static int tg3_nvram_read_using_eeprom(struct tg3 *tp,
3185 u32 offset, u32 *val)
3186{
3187 u32 tmp;
3188 int i;
3189
3190 if (offset > EEPROM_ADDR_ADDR_MASK || (offset % 4) != 0)
3191 return -EINVAL;
3192
3193 tmp = tr32(GRC_EEPROM_ADDR) & ~(EEPROM_ADDR_ADDR_MASK |
3194 EEPROM_ADDR_DEVID_MASK |
3195 EEPROM_ADDR_READ);
3196 tw32(GRC_EEPROM_ADDR,
3197 tmp |
3198 (0 << EEPROM_ADDR_DEVID_SHIFT) |
3199 ((offset << EEPROM_ADDR_ADDR_SHIFT) &
3200 EEPROM_ADDR_ADDR_MASK) |
3201 EEPROM_ADDR_READ | EEPROM_ADDR_START);
3202
3203 for (i = 0; i < 1000; i++) {
3204 tmp = tr32(GRC_EEPROM_ADDR);
3205
3206 if (tmp & EEPROM_ADDR_COMPLETE)
3207 break;
3208 msleep(msecs: 1);
3209 }
3210 if (!(tmp & EEPROM_ADDR_COMPLETE))
3211 return -EBUSY;
3212
3213 tmp = tr32(GRC_EEPROM_DATA);
3214
3215 /*
3216 * The data will always be opposite the native endian
3217 * format. Perform a blind byteswap to compensate.
3218 */
3219 *val = swab32(tmp);
3220
3221 return 0;
3222}
3223
3224#define NVRAM_CMD_TIMEOUT 10000
3225
3226static int tg3_nvram_exec_cmd(struct tg3 *tp, u32 nvram_cmd)
3227{
3228 int i;
3229
3230 tw32(NVRAM_CMD, nvram_cmd);
3231 for (i = 0; i < NVRAM_CMD_TIMEOUT; i++) {
3232 usleep_range(min: 10, max: 40);
3233 if (tr32(NVRAM_CMD) & NVRAM_CMD_DONE) {
3234 udelay(usec: 10);
3235 break;
3236 }
3237 }
3238
3239 if (i == NVRAM_CMD_TIMEOUT)
3240 return -EBUSY;
3241
3242 return 0;
3243}
3244
3245static u32 tg3_nvram_phys_addr(struct tg3 *tp, u32 addr)
3246{
3247 if (tg3_flag(tp, NVRAM) &&
3248 tg3_flag(tp, NVRAM_BUFFERED) &&
3249 tg3_flag(tp, FLASH) &&
3250 !tg3_flag(tp, NO_NVRAM_ADDR_TRANS) &&
3251 (tp->nvram_jedecnum == JEDEC_ATMEL))
3252
3253 addr = ((addr / tp->nvram_pagesize) <<
3254 ATMEL_AT45DB0X1B_PAGE_POS) +
3255 (addr % tp->nvram_pagesize);
3256
3257 return addr;
3258}
3259
3260static u32 tg3_nvram_logical_addr(struct tg3 *tp, u32 addr)
3261{
3262 if (tg3_flag(tp, NVRAM) &&
3263 tg3_flag(tp, NVRAM_BUFFERED) &&
3264 tg3_flag(tp, FLASH) &&
3265 !tg3_flag(tp, NO_NVRAM_ADDR_TRANS) &&
3266 (tp->nvram_jedecnum == JEDEC_ATMEL))
3267
3268 addr = ((addr >> ATMEL_AT45DB0X1B_PAGE_POS) *
3269 tp->nvram_pagesize) +
3270 (addr & ((1 << ATMEL_AT45DB0X1B_PAGE_POS) - 1));
3271
3272 return addr;
3273}
3274
3275/* NOTE: Data read in from NVRAM is byteswapped according to
3276 * the byteswapping settings for all other register accesses.
3277 * tg3 devices are BE devices, so on a BE machine, the data
3278 * returned will be exactly as it is seen in NVRAM. On a LE
3279 * machine, the 32-bit value will be byteswapped.
3280 */
3281static int tg3_nvram_read(struct tg3 *tp, u32 offset, u32 *val)
3282{
3283 int ret;
3284
3285 if (!tg3_flag(tp, NVRAM))
3286 return tg3_nvram_read_using_eeprom(tp, offset, val);
3287
3288 offset = tg3_nvram_phys_addr(tp, addr: offset);
3289
3290 if (offset > NVRAM_ADDR_MSK)
3291 return -EINVAL;
3292
3293 ret = tg3_nvram_lock(tp);
3294 if (ret)
3295 return ret;
3296
3297 tg3_enable_nvram_access(tp);
3298
3299 tw32(NVRAM_ADDR, offset);
3300 ret = tg3_nvram_exec_cmd(tp, NVRAM_CMD_RD | NVRAM_CMD_GO |
3301 NVRAM_CMD_FIRST | NVRAM_CMD_LAST | NVRAM_CMD_DONE);
3302
3303 if (ret == 0)
3304 *val = tr32(NVRAM_RDDATA);
3305
3306 tg3_disable_nvram_access(tp);
3307
3308 tg3_nvram_unlock(tp);
3309
3310 return ret;
3311}
3312
3313/* Ensures NVRAM data is in bytestream format. */
3314static int tg3_nvram_read_be32(struct tg3 *tp, u32 offset, __be32 *val)
3315{
3316 u32 v;
3317 int res = tg3_nvram_read(tp, offset, val: &v);
3318 if (!res)
3319 *val = cpu_to_be32(v);
3320 return res;
3321}
3322
3323static int tg3_nvram_write_block_using_eeprom(struct tg3 *tp,
3324 u32 offset, u32 len, u8 *buf)
3325{
3326 int i, j, rc = 0;
3327 u32 val;
3328
3329 for (i = 0; i < len; i += 4) {
3330 u32 addr;
3331 __be32 data;
3332
3333 addr = offset + i;
3334
3335 memcpy(to: &data, from: buf + i, len: 4);
3336
3337 /*
3338 * The SEEPROM interface expects the data to always be opposite
3339 * the native endian format. We accomplish this by reversing
3340 * all the operations that would have been performed on the
3341 * data from a call to tg3_nvram_read_be32().
3342 */
3343 tw32(GRC_EEPROM_DATA, swab32(be32_to_cpu(data)));
3344
3345 val = tr32(GRC_EEPROM_ADDR);
3346 tw32(GRC_EEPROM_ADDR, val | EEPROM_ADDR_COMPLETE);
3347
3348 val &= ~(EEPROM_ADDR_ADDR_MASK | EEPROM_ADDR_DEVID_MASK |
3349 EEPROM_ADDR_READ);
3350 tw32(GRC_EEPROM_ADDR, val |
3351 (0 << EEPROM_ADDR_DEVID_SHIFT) |
3352 (addr & EEPROM_ADDR_ADDR_MASK) |
3353 EEPROM_ADDR_START |
3354 EEPROM_ADDR_WRITE);
3355
3356 for (j = 0; j < 1000; j++) {
3357 val = tr32(GRC_EEPROM_ADDR);
3358
3359 if (val & EEPROM_ADDR_COMPLETE)
3360 break;
3361 msleep(msecs: 1);
3362 }
3363 if (!(val & EEPROM_ADDR_COMPLETE)) {
3364 rc = -EBUSY;
3365 break;
3366 }
3367 }
3368
3369 return rc;
3370}
3371
3372/* offset and length are dword aligned */
3373static int tg3_nvram_write_block_unbuffered(struct tg3 *tp, u32 offset, u32 len,
3374 u8 *buf)
3375{
3376 int ret = 0;
3377 u32 pagesize = tp->nvram_pagesize;
3378 u32 pagemask = pagesize - 1;
3379 u32 nvram_cmd;
3380 u8 *tmp;
3381
3382 tmp = kmalloc(pagesize, GFP_KERNEL);
3383 if (tmp == NULL)
3384 return -ENOMEM;
3385
3386 while (len) {
3387 int j;
3388 u32 phy_addr, page_off, size;
3389
3390 phy_addr = offset & ~pagemask;
3391
3392 for (j = 0; j < pagesize; j += 4) {
3393 ret = tg3_nvram_read_be32(tp, offset: phy_addr + j,
3394 val: (__be32 *) (tmp + j));
3395 if (ret)
3396 break;
3397 }
3398 if (ret)
3399 break;
3400
3401 page_off = offset & pagemask;
3402 size = pagesize;
3403 if (len < size)
3404 size = len;
3405
3406 len -= size;
3407
3408 memcpy(to: tmp + page_off, from: buf, len: size);
3409
3410 offset = offset + (pagesize - page_off);
3411
3412 tg3_enable_nvram_access(tp);
3413
3414 /*
3415 * Before we can erase the flash page, we need
3416 * to issue a special "write enable" command.
3417 */
3418 nvram_cmd = NVRAM_CMD_WREN | NVRAM_CMD_GO | NVRAM_CMD_DONE;
3419
3420 if (tg3_nvram_exec_cmd(tp, nvram_cmd))
3421 break;
3422
3423 /* Erase the target page */
3424 tw32(NVRAM_ADDR, phy_addr);
3425
3426 nvram_cmd = NVRAM_CMD_GO | NVRAM_CMD_DONE | NVRAM_CMD_WR |
3427 NVRAM_CMD_FIRST | NVRAM_CMD_LAST | NVRAM_CMD_ERASE;
3428
3429 if (tg3_nvram_exec_cmd(tp, nvram_cmd))
3430 break;
3431
3432 /* Issue another write enable to start the write. */
3433 nvram_cmd = NVRAM_CMD_WREN | NVRAM_CMD_GO | NVRAM_CMD_DONE;
3434
3435 if (tg3_nvram_exec_cmd(tp, nvram_cmd))
3436 break;
3437
3438 for (j = 0; j < pagesize; j += 4) {
3439 __be32 data;
3440
3441 data = *((__be32 *) (tmp + j));
3442
3443 tw32(NVRAM_WRDATA, be32_to_cpu(data));
3444
3445 tw32(NVRAM_ADDR, phy_addr + j);
3446
3447 nvram_cmd = NVRAM_CMD_GO | NVRAM_CMD_DONE |
3448 NVRAM_CMD_WR;
3449
3450 if (j == 0)
3451 nvram_cmd |= NVRAM_CMD_FIRST;
3452 else if (j == (pagesize - 4))
3453 nvram_cmd |= NVRAM_CMD_LAST;
3454
3455 ret = tg3_nvram_exec_cmd(tp, nvram_cmd);
3456 if (ret)
3457 break;
3458 }
3459 if (ret)
3460 break;
3461 }
3462
3463 nvram_cmd = NVRAM_CMD_WRDI | NVRAM_CMD_GO | NVRAM_CMD_DONE;
3464 tg3_nvram_exec_cmd(tp, nvram_cmd);
3465
3466 kfree(objp: tmp);
3467
3468 return ret;
3469}
3470
3471/* offset and length are dword aligned */
3472static int tg3_nvram_write_block_buffered(struct tg3 *tp, u32 offset, u32 len,
3473 u8 *buf)
3474{
3475 int i, ret = 0;
3476
3477 for (i = 0; i < len; i += 4, offset += 4) {
3478 u32 page_off, phy_addr, nvram_cmd;
3479 __be32 data;
3480
3481 memcpy(to: &data, from: buf + i, len: 4);
3482 tw32(NVRAM_WRDATA, be32_to_cpu(data));
3483
3484 page_off = offset % tp->nvram_pagesize;
3485
3486 phy_addr = tg3_nvram_phys_addr(tp, addr: offset);
3487
3488 nvram_cmd = NVRAM_CMD_GO | NVRAM_CMD_DONE | NVRAM_CMD_WR;
3489
3490 if (page_off == 0 || i == 0)
3491 nvram_cmd |= NVRAM_CMD_FIRST;
3492 if (page_off == (tp->nvram_pagesize - 4))
3493 nvram_cmd |= NVRAM_CMD_LAST;
3494
3495 if (i == (len - 4))
3496 nvram_cmd |= NVRAM_CMD_LAST;
3497
3498 if ((nvram_cmd & NVRAM_CMD_FIRST) ||
3499 !tg3_flag(tp, FLASH) ||
3500 !tg3_flag(tp, 57765_PLUS))
3501 tw32(NVRAM_ADDR, phy_addr);
3502
3503 if (tg3_asic_rev(tp) != ASIC_REV_5752 &&
3504 !tg3_flag(tp, 5755_PLUS) &&
3505 (tp->nvram_jedecnum == JEDEC_ST) &&
3506 (nvram_cmd & NVRAM_CMD_FIRST)) {
3507 u32 cmd;
3508
3509 cmd = NVRAM_CMD_WREN | NVRAM_CMD_GO | NVRAM_CMD_DONE;
3510 ret = tg3_nvram_exec_cmd(tp, nvram_cmd: cmd);
3511 if (ret)
3512 break;
3513 }
3514 if (!tg3_flag(tp, FLASH)) {
3515 /* We always do complete word writes to eeprom. */
3516 nvram_cmd |= (NVRAM_CMD_FIRST | NVRAM_CMD_LAST);
3517 }
3518
3519 ret = tg3_nvram_exec_cmd(tp, nvram_cmd);
3520 if (ret)
3521 break;
3522 }
3523 return ret;
3524}
3525
3526/* offset and length are dword aligned */
3527static int tg3_nvram_write_block(struct tg3 *tp, u32 offset, u32 len, u8 *buf)
3528{
3529 int ret;
3530
3531 if (tg3_flag(tp, EEPROM_WRITE_PROT)) {
3532 tw32_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl &
3533 ~GRC_LCLCTRL_GPIO_OUTPUT1);
3534 udelay(usec: 40);
3535 }
3536
3537 if (!tg3_flag(tp, NVRAM)) {
3538 ret = tg3_nvram_write_block_using_eeprom(tp, offset, len, buf);
3539 } else {
3540 u32 grc_mode;
3541
3542 ret = tg3_nvram_lock(tp);
3543 if (ret)
3544 return ret;
3545
3546 tg3_enable_nvram_access(tp);
3547 if (tg3_flag(tp, 5750_PLUS) && !tg3_flag(tp, PROTECTED_NVRAM))
3548 tw32(NVRAM_WRITE1, 0x406);
3549
3550 grc_mode = tr32(GRC_MODE);
3551 tw32(GRC_MODE, grc_mode | GRC_MODE_NVRAM_WR_ENABLE);
3552
3553 if (tg3_flag(tp, NVRAM_BUFFERED) || !tg3_flag(tp, FLASH)) {
3554 ret = tg3_nvram_write_block_buffered(tp, offset, len,
3555 buf);
3556 } else {
3557 ret = tg3_nvram_write_block_unbuffered(tp, offset, len,
3558 buf);
3559 }
3560
3561 grc_mode = tr32(GRC_MODE);
3562 tw32(GRC_MODE, grc_mode & ~GRC_MODE_NVRAM_WR_ENABLE);
3563
3564 tg3_disable_nvram_access(tp);
3565 tg3_nvram_unlock(tp);
3566 }
3567
3568 if (tg3_flag(tp, EEPROM_WRITE_PROT)) {
3569 tw32_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl);
3570 udelay(usec: 40);
3571 }
3572
3573 return ret;
3574}
3575
3576#define RX_CPU_SCRATCH_BASE 0x30000
3577#define RX_CPU_SCRATCH_SIZE 0x04000
3578#define TX_CPU_SCRATCH_BASE 0x34000
3579#define TX_CPU_SCRATCH_SIZE 0x04000
3580
3581/* tp->lock is held. */
3582static int tg3_pause_cpu(struct tg3 *tp, u32 cpu_base)
3583{
3584 int i;
3585 const int iters = 10000;
3586
3587 for (i = 0; i < iters; i++) {
3588 tw32(cpu_base + CPU_STATE, 0xffffffff);
3589 tw32(cpu_base + CPU_MODE, CPU_MODE_HALT);
3590 if (tr32(cpu_base + CPU_MODE) & CPU_MODE_HALT)
3591 break;
3592 if (pci_channel_offline(pdev: tp->pdev))
3593 return -EBUSY;
3594 }
3595
3596 return (i == iters) ? -EBUSY : 0;
3597}
3598
3599/* tp->lock is held. */
3600static int tg3_rxcpu_pause(struct tg3 *tp)
3601{
3602 int rc = tg3_pause_cpu(tp, RX_CPU_BASE);
3603
3604 tw32(RX_CPU_BASE + CPU_STATE, 0xffffffff);
3605 tw32_f(RX_CPU_BASE + CPU_MODE, CPU_MODE_HALT);
3606 udelay(usec: 10);
3607
3608 return rc;
3609}
3610
3611/* tp->lock is held. */
3612static int tg3_txcpu_pause(struct tg3 *tp)
3613{
3614 return tg3_pause_cpu(tp, TX_CPU_BASE);
3615}
3616
3617/* tp->lock is held. */
3618static void tg3_resume_cpu(struct tg3 *tp, u32 cpu_base)
3619{
3620 tw32(cpu_base + CPU_STATE, 0xffffffff);
3621 tw32_f(cpu_base + CPU_MODE, 0x00000000);
3622}
3623
3624/* tp->lock is held. */
3625static void tg3_rxcpu_resume(struct tg3 *tp)
3626{
3627 tg3_resume_cpu(tp, RX_CPU_BASE);
3628}
3629
3630/* tp->lock is held. */
3631static int tg3_halt_cpu(struct tg3 *tp, u32 cpu_base)
3632{
3633 int rc;
3634
3635 BUG_ON(cpu_base == TX_CPU_BASE && tg3_flag(tp, 5705_PLUS));
3636
3637 if (tg3_asic_rev(tp) == ASIC_REV_5906) {
3638 u32 val = tr32(GRC_VCPU_EXT_CTRL);
3639
3640 tw32(GRC_VCPU_EXT_CTRL, val | GRC_VCPU_EXT_CTRL_HALT_CPU);
3641 return 0;
3642 }
3643 if (cpu_base == RX_CPU_BASE) {
3644 rc = tg3_rxcpu_pause(tp);
3645 } else {
3646 /*
3647 * There is only an Rx CPU for the 5750 derivative in the
3648 * BCM4785.
3649 */
3650 if (tg3_flag(tp, IS_SSB_CORE))
3651 return 0;
3652
3653 rc = tg3_txcpu_pause(tp);
3654 }
3655
3656 if (rc) {
3657 netdev_err(dev: tp->dev, format: "%s timed out, %s CPU\n",
3658 __func__, cpu_base == RX_CPU_BASE ? "RX" : "TX");
3659 return -ENODEV;
3660 }
3661
3662 /* Clear firmware's nvram arbitration. */
3663 if (tg3_flag(tp, NVRAM))
3664 tw32(NVRAM_SWARB, SWARB_REQ_CLR0);
3665 return 0;
3666}
3667
3668static int tg3_fw_data_len(struct tg3 *tp,
3669 const struct tg3_firmware_hdr *fw_hdr)
3670{
3671 int fw_len;
3672
3673 /* Non fragmented firmware have one firmware header followed by a
3674 * contiguous chunk of data to be written. The length field in that
3675 * header is not the length of data to be written but the complete
3676 * length of the bss. The data length is determined based on
3677 * tp->fw->size minus headers.
3678 *
3679 * Fragmented firmware have a main header followed by multiple
3680 * fragments. Each fragment is identical to non fragmented firmware
3681 * with a firmware header followed by a contiguous chunk of data. In
3682 * the main header, the length field is unused and set to 0xffffffff.
3683 * In each fragment header the length is the entire size of that
3684 * fragment i.e. fragment data + header length. Data length is
3685 * therefore length field in the header minus TG3_FW_HDR_LEN.
3686 */
3687 if (tp->fw_len == 0xffffffff)
3688 fw_len = be32_to_cpu(fw_hdr->len);
3689 else
3690 fw_len = tp->fw->size;
3691
3692 return (fw_len - TG3_FW_HDR_LEN) / sizeof(u32);
3693}
3694
3695/* tp->lock is held. */
3696static int tg3_load_firmware_cpu(struct tg3 *tp, u32 cpu_base,
3697 u32 cpu_scratch_base, int cpu_scratch_size,
3698 const struct tg3_firmware_hdr *fw_hdr)
3699{
3700 int err, i;
3701 void (*write_op)(struct tg3 *, u32, u32);
3702 int total_len = tp->fw->size;
3703
3704 if (cpu_base == TX_CPU_BASE && tg3_flag(tp, 5705_PLUS)) {
3705 netdev_err(dev: tp->dev,
3706 format: "%s: Trying to load TX cpu firmware which is 5705\n",
3707 __func__);
3708 return -EINVAL;
3709 }
3710
3711 if (tg3_flag(tp, 5705_PLUS) && tg3_asic_rev(tp) != ASIC_REV_57766)
3712 write_op = tg3_write_mem;
3713 else
3714 write_op = tg3_write_indirect_reg32;
3715
3716 if (tg3_asic_rev(tp) != ASIC_REV_57766) {
3717 /* It is possible that bootcode is still loading at this point.
3718 * Get the nvram lock first before halting the cpu.
3719 */
3720 int lock_err = tg3_nvram_lock(tp);
3721 err = tg3_halt_cpu(tp, cpu_base);
3722 if (!lock_err)
3723 tg3_nvram_unlock(tp);
3724 if (err)
3725 goto out;
3726
3727 for (i = 0; i < cpu_scratch_size; i += sizeof(u32))
3728 write_op(tp, cpu_scratch_base + i, 0);
3729 tw32(cpu_base + CPU_STATE, 0xffffffff);
3730 tw32(cpu_base + CPU_MODE,
3731 tr32(cpu_base + CPU_MODE) | CPU_MODE_HALT);
3732 } else {
3733 /* Subtract additional main header for fragmented firmware and
3734 * advance to the first fragment
3735 */
3736 total_len -= TG3_FW_HDR_LEN;
3737 fw_hdr++;
3738 }
3739
3740 do {
3741 __be32 *fw_data = (__be32 *)(fw_hdr + 1);
3742 for (i = 0; i < tg3_fw_data_len(tp, fw_hdr); i++)
3743 write_op(tp, cpu_scratch_base +
3744 (be32_to_cpu(fw_hdr->base_addr) & 0xffff) +
3745 (i * sizeof(u32)),
3746 be32_to_cpu(fw_data[i]));
3747
3748 total_len -= be32_to_cpu(fw_hdr->len);
3749
3750 /* Advance to next fragment */
3751 fw_hdr = (struct tg3_firmware_hdr *)
3752 ((void *)fw_hdr + be32_to_cpu(fw_hdr->len));
3753 } while (total_len > 0);
3754
3755 err = 0;
3756
3757out:
3758 return err;
3759}
3760
3761/* tp->lock is held. */
3762static int tg3_pause_cpu_and_set_pc(struct tg3 *tp, u32 cpu_base, u32 pc)
3763{
3764 int i;
3765 const int iters = 5;
3766
3767 tw32(cpu_base + CPU_STATE, 0xffffffff);
3768 tw32_f(cpu_base + CPU_PC, pc);
3769
3770 for (i = 0; i < iters; i++) {
3771 if (tr32(cpu_base + CPU_PC) == pc)
3772 break;
3773 tw32(cpu_base + CPU_STATE, 0xffffffff);
3774 tw32(cpu_base + CPU_MODE, CPU_MODE_HALT);
3775 tw32_f(cpu_base + CPU_PC, pc);
3776 udelay(usec: 1000);
3777 }
3778
3779 return (i == iters) ? -EBUSY : 0;
3780}
3781
3782/* tp->lock is held. */
3783static int tg3_load_5701_a0_firmware_fix(struct tg3 *tp)
3784{
3785 const struct tg3_firmware_hdr *fw_hdr;
3786 int err;
3787
3788 fw_hdr = (struct tg3_firmware_hdr *)tp->fw->data;
3789
3790 /* Firmware blob starts with version numbers, followed by
3791 start address and length. We are setting complete length.
3792 length = end_address_of_bss - start_address_of_text.
3793 Remainder is the blob to be loaded contiguously
3794 from start address. */
3795
3796 err = tg3_load_firmware_cpu(tp, RX_CPU_BASE,
3797 RX_CPU_SCRATCH_BASE, RX_CPU_SCRATCH_SIZE,
3798 fw_hdr);
3799 if (err)
3800 return err;
3801
3802 err = tg3_load_firmware_cpu(tp, TX_CPU_BASE,
3803 TX_CPU_SCRATCH_BASE, TX_CPU_SCRATCH_SIZE,
3804 fw_hdr);
3805 if (err)
3806 return err;
3807
3808 /* Now startup only the RX cpu. */
3809 err = tg3_pause_cpu_and_set_pc(tp, RX_CPU_BASE,
3810 be32_to_cpu(fw_hdr->base_addr));
3811 if (err) {
3812 netdev_err(dev: tp->dev, format: "%s fails to set RX CPU PC, is %08x "
3813 "should be %08x\n", __func__,
3814 tr32(RX_CPU_BASE + CPU_PC),
3815 be32_to_cpu(fw_hdr->base_addr));
3816 return -ENODEV;
3817 }
3818
3819 tg3_rxcpu_resume(tp);
3820
3821 return 0;
3822}
3823
3824static int tg3_validate_rxcpu_state(struct tg3 *tp)
3825{
3826 const int iters = 1000;
3827 int i;
3828 u32 val;
3829
3830 /* Wait for boot code to complete initialization and enter service
3831 * loop. It is then safe to download service patches
3832 */
3833 for (i = 0; i < iters; i++) {
3834 if (tr32(RX_CPU_HWBKPT) == TG3_SBROM_IN_SERVICE_LOOP)
3835 break;
3836
3837 udelay(usec: 10);
3838 }
3839
3840 if (i == iters) {
3841 netdev_err(dev: tp->dev, format: "Boot code not ready for service patches\n");
3842 return -EBUSY;
3843 }
3844
3845 val = tg3_read_indirect_reg32(tp, TG3_57766_FW_HANDSHAKE);
3846 if (val & 0xff) {
3847 netdev_warn(dev: tp->dev,
3848 format: "Other patches exist. Not downloading EEE patch\n");
3849 return -EEXIST;
3850 }
3851
3852 return 0;
3853}
3854
3855/* tp->lock is held. */
3856static void tg3_load_57766_firmware(struct tg3 *tp)
3857{
3858 struct tg3_firmware_hdr *fw_hdr;
3859
3860 if (!tg3_flag(tp, NO_NVRAM))
3861 return;
3862
3863 if (tg3_validate_rxcpu_state(tp))
3864 return;
3865
3866 if (!tp->fw)
3867 return;
3868
3869 /* This firmware blob has a different format than older firmware
3870 * releases as given below. The main difference is we have fragmented
3871 * data to be written to non-contiguous locations.
3872 *
3873 * In the beginning we have a firmware header identical to other
3874 * firmware which consists of version, base addr and length. The length
3875 * here is unused and set to 0xffffffff.
3876 *
3877 * This is followed by a series of firmware fragments which are
3878 * individually identical to previous firmware. i.e. they have the
3879 * firmware header and followed by data for that fragment. The version
3880 * field of the individual fragment header is unused.
3881 */
3882
3883 fw_hdr = (struct tg3_firmware_hdr *)tp->fw->data;
3884 if (be32_to_cpu(fw_hdr->base_addr) != TG3_57766_FW_BASE_ADDR)
3885 return;
3886
3887 if (tg3_rxcpu_pause(tp))
3888 return;
3889
3890 /* tg3_load_firmware_cpu() will always succeed for the 57766 */
3891 tg3_load_firmware_cpu(tp, cpu_base: 0, TG3_57766_FW_BASE_ADDR, cpu_scratch_size: 0, fw_hdr);
3892
3893 tg3_rxcpu_resume(tp);
3894}
3895
3896/* tp->lock is held. */
3897static int tg3_load_tso_firmware(struct tg3 *tp)
3898{
3899 const struct tg3_firmware_hdr *fw_hdr;
3900 unsigned long cpu_base, cpu_scratch_base, cpu_scratch_size;
3901 int err;
3902
3903 if (!tg3_flag(tp, FW_TSO))
3904 return 0;
3905
3906 fw_hdr = (struct tg3_firmware_hdr *)tp->fw->data;
3907
3908 /* Firmware blob starts with version numbers, followed by
3909 start address and length. We are setting complete length.
3910 length = end_address_of_bss - start_address_of_text.
3911 Remainder is the blob to be loaded contiguously
3912 from start address. */
3913
3914 cpu_scratch_size = tp->fw_len;
3915
3916 if (tg3_asic_rev(tp) == ASIC_REV_5705) {
3917 cpu_base = RX_CPU_BASE;
3918 cpu_scratch_base = NIC_SRAM_MBUF_POOL_BASE5705;
3919 } else {
3920 cpu_base = TX_CPU_BASE;
3921 cpu_scratch_base = TX_CPU_SCRATCH_BASE;
3922 cpu_scratch_size = TX_CPU_SCRATCH_SIZE;
3923 }
3924
3925 err = tg3_load_firmware_cpu(tp, cpu_base,
3926 cpu_scratch_base, cpu_scratch_size,
3927 fw_hdr);
3928 if (err)
3929 return err;
3930
3931 /* Now startup the cpu. */
3932 err = tg3_pause_cpu_and_set_pc(tp, cpu_base,
3933 be32_to_cpu(fw_hdr->base_addr));
3934 if (err) {
3935 netdev_err(dev: tp->dev,
3936 format: "%s fails to set CPU PC, is %08x should be %08x\n",
3937 __func__, tr32(cpu_base + CPU_PC),
3938 be32_to_cpu(fw_hdr->base_addr));
3939 return -ENODEV;
3940 }
3941
3942 tg3_resume_cpu(tp, cpu_base);
3943 return 0;
3944}
3945
3946/* tp->lock is held. */
3947static void __tg3_set_one_mac_addr(struct tg3 *tp, const u8 *mac_addr,
3948 int index)
3949{
3950 u32 addr_high, addr_low;
3951
3952 addr_high = ((mac_addr[0] << 8) | mac_addr[1]);
3953 addr_low = ((mac_addr[2] << 24) | (mac_addr[3] << 16) |
3954 (mac_addr[4] << 8) | mac_addr[5]);
3955
3956 if (index < 4) {
3957 tw32(MAC_ADDR_0_HIGH + (index * 8), addr_high);
3958 tw32(MAC_ADDR_0_LOW + (index * 8), addr_low);
3959 } else {
3960 index -= 4;
3961 tw32(MAC_EXTADDR_0_HIGH + (index * 8), addr_high);
3962 tw32(MAC_EXTADDR_0_LOW + (index * 8), addr_low);
3963 }
3964}
3965
3966/* tp->lock is held. */
3967static void __tg3_set_mac_addr(struct tg3 *tp, bool skip_mac_1)
3968{
3969 u32 addr_high;
3970 int i;
3971
3972 for (i = 0; i < 4; i++) {
3973 if (i == 1 && skip_mac_1)
3974 continue;
3975 __tg3_set_one_mac_addr(tp, mac_addr: tp->dev->dev_addr, index: i);
3976 }
3977
3978 if (tg3_asic_rev(tp) == ASIC_REV_5703 ||
3979 tg3_asic_rev(tp) == ASIC_REV_5704) {
3980 for (i = 4; i < 16; i++)
3981 __tg3_set_one_mac_addr(tp, mac_addr: tp->dev->dev_addr, index: i);
3982 }
3983
3984 addr_high = (tp->dev->dev_addr[0] +
3985 tp->dev->dev_addr[1] +
3986 tp->dev->dev_addr[2] +
3987 tp->dev->dev_addr[3] +
3988 tp->dev->dev_addr[4] +
3989 tp->dev->dev_addr[5]) &
3990 TX_BACKOFF_SEED_MASK;
3991 tw32(MAC_TX_BACKOFF_SEED, addr_high);
3992}
3993
3994static void tg3_enable_register_access(struct tg3 *tp)
3995{
3996 /*
3997 * Make sure register accesses (indirect or otherwise) will function
3998 * correctly.
3999 */
4000 pci_write_config_dword(dev: tp->pdev,
4001 TG3PCI_MISC_HOST_CTRL, val: tp->misc_host_ctrl);
4002}
4003
4004static int tg3_power_up(struct tg3 *tp)
4005{
4006 int err;
4007
4008 tg3_enable_register_access(tp);
4009
4010 err = pci_set_power_state(dev: tp->pdev, PCI_D0);
4011 if (!err) {
4012 /* Switch out of Vaux if it is a NIC */
4013 tg3_pwrsrc_switch_to_vmain(tp);
4014 } else {
4015 netdev_err(dev: tp->dev, format: "Transition to D0 failed\n");
4016 }
4017
4018 return err;
4019}
4020
4021static int tg3_setup_phy(struct tg3 *, bool);
4022
4023static void tg3_power_down_prepare(struct tg3 *tp)
4024{
4025 u32 misc_host_ctrl;
4026 bool device_should_wake, do_low_power;
4027
4028 tg3_enable_register_access(tp);
4029
4030 /* Restore the CLKREQ setting. */
4031 if (tg3_flag(tp, CLKREQ_BUG))
4032 pcie_capability_set_word(dev: tp->pdev, PCI_EXP_LNKCTL,
4033 PCI_EXP_LNKCTL_CLKREQ_EN);
4034
4035 misc_host_ctrl = tr32(TG3PCI_MISC_HOST_CTRL);
4036 tw32(TG3PCI_MISC_HOST_CTRL,
4037 misc_host_ctrl | MISC_HOST_CTRL_MASK_PCI_INT);
4038
4039 device_should_wake = device_may_wakeup(dev: &tp->pdev->dev) &&
4040 tg3_flag(tp, WOL_ENABLE);
4041
4042 if (tg3_flag(tp, USE_PHYLIB)) {
4043 do_low_power = false;
4044 if ((tp->phy_flags & TG3_PHYFLG_IS_CONNECTED) &&
4045 !(tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)) {
4046 __ETHTOOL_DECLARE_LINK_MODE_MASK(advertising) = { 0, };
4047 struct phy_device *phydev;
4048 u32 phyid;
4049
4050 phydev = mdiobus_get_phy(bus: tp->mdio_bus, addr: tp->phy_addr);
4051
4052 tp->phy_flags |= TG3_PHYFLG_IS_LOW_POWER;
4053
4054 tp->link_config.speed = phydev->speed;
4055 tp->link_config.duplex = phydev->duplex;
4056 tp->link_config.autoneg = phydev->autoneg;
4057 ethtool_convert_link_mode_to_legacy_u32(
4058 legacy_u32: &tp->link_config.advertising,
4059 src: phydev->advertising);
4060
4061 linkmode_set_bit(ETHTOOL_LINK_MODE_TP_BIT, advertising);
4062 linkmode_set_bit(ETHTOOL_LINK_MODE_Pause_BIT,
4063 advertising);
4064 linkmode_set_bit(ETHTOOL_LINK_MODE_Autoneg_BIT,
4065 advertising);
4066 linkmode_set_bit(ETHTOOL_LINK_MODE_10baseT_Half_BIT,
4067 advertising);
4068
4069 if (tg3_flag(tp, ENABLE_ASF) || device_should_wake) {
4070 if (tg3_flag(tp, WOL_SPEED_100MB)) {
4071 linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Half_BIT,
4072 advertising);
4073 linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT,
4074 advertising);
4075 linkmode_set_bit(ETHTOOL_LINK_MODE_10baseT_Full_BIT,
4076 advertising);
4077 } else {
4078 linkmode_set_bit(ETHTOOL_LINK_MODE_10baseT_Full_BIT,
4079 advertising);
4080 }
4081 }
4082
4083 linkmode_copy(dst: phydev->advertising, src: advertising);
4084 phy_start_aneg(phydev);
4085
4086 phyid = phydev->drv->phy_id & phydev->drv->phy_id_mask;
4087 if (phyid != PHY_ID_BCMAC131) {
4088 phyid &= PHY_BCM_OUI_MASK;
4089 if (phyid == PHY_BCM_OUI_1 ||
4090 phyid == PHY_BCM_OUI_2 ||
4091 phyid == PHY_BCM_OUI_3)
4092 do_low_power = true;
4093 }
4094 }
4095 } else {
4096 do_low_power = true;
4097
4098 if (!(tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER))
4099 tp->phy_flags |= TG3_PHYFLG_IS_LOW_POWER;
4100
4101 if (!(tp->phy_flags & TG3_PHYFLG_ANY_SERDES))
4102 tg3_setup_phy(tp, false);
4103 }
4104
4105 if (tg3_asic_rev(tp) == ASIC_REV_5906) {
4106 u32 val;
4107
4108 val = tr32(GRC_VCPU_EXT_CTRL);
4109 tw32(GRC_VCPU_EXT_CTRL, val | GRC_VCPU_EXT_CTRL_DISABLE_WOL);
4110 } else if (!tg3_flag(tp, ENABLE_ASF)) {
4111 int i;
4112 u32 val;
4113
4114 for (i = 0; i < 200; i++) {
4115 tg3_read_mem(tp, NIC_SRAM_FW_ASF_STATUS_MBOX, val: &val);
4116 if (val == ~NIC_SRAM_FIRMWARE_MBOX_MAGIC1)
4117 break;
4118 msleep(msecs: 1);
4119 }
4120 }
4121 if (tg3_flag(tp, WOL_CAP))
4122 tg3_write_mem(tp, NIC_SRAM_WOL_MBOX, WOL_SIGNATURE |
4123 WOL_DRV_STATE_SHUTDOWN |
4124 WOL_DRV_WOL |
4125 WOL_SET_MAGIC_PKT);
4126
4127 if (device_should_wake) {
4128 u32 mac_mode;
4129
4130 if (!(tp->phy_flags & TG3_PHYFLG_PHY_SERDES)) {
4131 if (do_low_power &&
4132 !(tp->phy_flags & TG3_PHYFLG_IS_FET)) {
4133 tg3_phy_auxctl_write(tp,
4134 MII_TG3_AUXCTL_SHDWSEL_PWRCTL,
4135 MII_TG3_AUXCTL_PCTL_WOL_EN |
4136 MII_TG3_AUXCTL_PCTL_100TX_LPWR |
4137 MII_TG3_AUXCTL_PCTL_CL_AB_TXDAC);
4138 udelay(usec: 40);
4139 }
4140
4141 if (tp->phy_flags & TG3_PHYFLG_MII_SERDES)
4142 mac_mode = MAC_MODE_PORT_MODE_GMII;
4143 else if (tp->phy_flags &
4144 TG3_PHYFLG_KEEP_LINK_ON_PWRDN) {
4145 if (tp->link_config.active_speed == SPEED_1000)
4146 mac_mode = MAC_MODE_PORT_MODE_GMII;
4147 else
4148 mac_mode = MAC_MODE_PORT_MODE_MII;
4149 } else
4150 mac_mode = MAC_MODE_PORT_MODE_MII;
4151
4152 mac_mode |= tp->mac_mode & MAC_MODE_LINK_POLARITY;
4153 if (tg3_asic_rev(tp) == ASIC_REV_5700) {
4154 u32 speed = tg3_flag(tp, WOL_SPEED_100MB) ?
4155 SPEED_100 : SPEED_10;
4156 if (tg3_5700_link_polarity(tp, speed))
4157 mac_mode |= MAC_MODE_LINK_POLARITY;
4158 else
4159 mac_mode &= ~MAC_MODE_LINK_POLARITY;
4160 }
4161 } else {
4162 mac_mode = MAC_MODE_PORT_MODE_TBI;
4163 }
4164
4165 if (!tg3_flag(tp, 5750_PLUS))
4166 tw32(MAC_LED_CTRL, tp->led_ctrl);
4167
4168 mac_mode |= MAC_MODE_MAGIC_PKT_ENABLE;
4169 if ((tg3_flag(tp, 5705_PLUS) && !tg3_flag(tp, 5780_CLASS)) &&
4170 (tg3_flag(tp, ENABLE_ASF) || tg3_flag(tp, ENABLE_APE)))
4171 mac_mode |= MAC_MODE_KEEP_FRAME_IN_WOL;
4172
4173 if (tg3_flag(tp, ENABLE_APE))
4174 mac_mode |= MAC_MODE_APE_TX_EN |
4175 MAC_MODE_APE_RX_EN |
4176 MAC_MODE_TDE_ENABLE;
4177
4178 tw32_f(MAC_MODE, mac_mode);
4179 udelay(usec: 100);
4180
4181 tw32_f(MAC_RX_MODE, RX_MODE_ENABLE);
4182 udelay(usec: 10);
4183 }
4184
4185 if (!tg3_flag(tp, WOL_SPEED_100MB) &&
4186 (tg3_asic_rev(tp) == ASIC_REV_5700 ||
4187 tg3_asic_rev(tp) == ASIC_REV_5701)) {
4188 u32 base_val;
4189
4190 base_val = tp->pci_clock_ctrl;
4191 base_val |= (CLOCK_CTRL_RXCLK_DISABLE |
4192 CLOCK_CTRL_TXCLK_DISABLE);
4193
4194 tw32_wait_f(TG3PCI_CLOCK_CTRL, base_val | CLOCK_CTRL_ALTCLK |
4195 CLOCK_CTRL_PWRDOWN_PLL133, 40);
4196 } else if (tg3_flag(tp, 5780_CLASS) ||
4197 tg3_flag(tp, CPMU_PRESENT) ||
4198 tg3_asic_rev(tp) == ASIC_REV_5906) {
4199 /* do nothing */
4200 } else if (!(tg3_flag(tp, 5750_PLUS) && tg3_flag(tp, ENABLE_ASF))) {
4201 u32 newbits1, newbits2;
4202
4203 if (tg3_asic_rev(tp) == ASIC_REV_5700 ||
4204 tg3_asic_rev(tp) == ASIC_REV_5701) {
4205 newbits1 = (CLOCK_CTRL_RXCLK_DISABLE |
4206 CLOCK_CTRL_TXCLK_DISABLE |
4207 CLOCK_CTRL_ALTCLK);
4208 newbits2 = newbits1 | CLOCK_CTRL_44MHZ_CORE;
4209 } else if (tg3_flag(tp, 5705_PLUS)) {
4210 newbits1 = CLOCK_CTRL_625_CORE;
4211 newbits2 = newbits1 | CLOCK_CTRL_ALTCLK;
4212 } else {
4213 newbits1 = CLOCK_CTRL_ALTCLK;
4214 newbits2 = newbits1 | CLOCK_CTRL_44MHZ_CORE;
4215 }
4216
4217 tw32_wait_f(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl | newbits1,
4218 40);
4219
4220 tw32_wait_f(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl | newbits2,
4221 40);
4222
4223 if (!tg3_flag(tp, 5705_PLUS)) {
4224 u32 newbits3;
4225
4226 if (tg3_asic_rev(tp) == ASIC_REV_5700 ||
4227 tg3_asic_rev(tp) == ASIC_REV_5701) {
4228 newbits3 = (CLOCK_CTRL_RXCLK_DISABLE |
4229 CLOCK_CTRL_TXCLK_DISABLE |
4230 CLOCK_CTRL_44MHZ_CORE);
4231 } else {
4232 newbits3 = CLOCK_CTRL_44MHZ_CORE;
4233 }
4234
4235 tw32_wait_f(TG3PCI_CLOCK_CTRL,
4236 tp->pci_clock_ctrl | newbits3, 40);
4237 }
4238 }
4239
4240 if (!(device_should_wake) && !tg3_flag(tp, ENABLE_ASF))
4241 tg3_power_down_phy(tp, do_low_power);
4242
4243 tg3_frob_aux_power(tp, include_wol: true);
4244
4245 /* Workaround for unstable PLL clock */
4246 if ((!tg3_flag(tp, IS_SSB_CORE)) &&
4247 ((tg3_chip_rev(tp) == CHIPREV_5750_AX) ||
4248 (tg3_chip_rev(tp) == CHIPREV_5750_BX))) {
4249 u32 val = tr32(0x7d00);
4250
4251 val &= ~((1 << 16) | (1 << 4) | (1 << 2) | (1 << 1) | 1);
4252 tw32(0x7d00, val);
4253 if (!tg3_flag(tp, ENABLE_ASF)) {
4254 int err;
4255
4256 err = tg3_nvram_lock(tp);
4257 tg3_halt_cpu(tp, RX_CPU_BASE);
4258 if (!err)
4259 tg3_nvram_unlock(tp);
4260 }
4261 }
4262
4263 tg3_write_sig_post_reset(tp, RESET_KIND_SHUTDOWN);
4264
4265 tg3_ape_driver_state_change(tp, RESET_KIND_SHUTDOWN);
4266
4267 return;
4268}
4269
4270static void tg3_power_down(struct tg3 *tp)
4271{
4272 pci_wake_from_d3(dev: tp->pdev, tg3_flag(tp, WOL_ENABLE));
4273 pci_set_power_state(dev: tp->pdev, PCI_D3hot);
4274}
4275
4276static void tg3_aux_stat_to_speed_duplex(struct tg3 *tp, u32 val, u32 *speed, u8 *duplex)
4277{
4278 switch (val & MII_TG3_AUX_STAT_SPDMASK) {
4279 case MII_TG3_AUX_STAT_10HALF:
4280 *speed = SPEED_10;
4281 *duplex = DUPLEX_HALF;
4282 break;
4283
4284 case MII_TG3_AUX_STAT_10FULL:
4285 *speed = SPEED_10;
4286 *duplex = DUPLEX_FULL;
4287 break;
4288
4289 case MII_TG3_AUX_STAT_100HALF:
4290 *speed = SPEED_100;
4291 *duplex = DUPLEX_HALF;
4292 break;
4293
4294 case MII_TG3_AUX_STAT_100FULL:
4295 *speed = SPEED_100;
4296 *duplex = DUPLEX_FULL;
4297 break;
4298
4299 case MII_TG3_AUX_STAT_1000HALF:
4300 *speed = SPEED_1000;
4301 *duplex = DUPLEX_HALF;
4302 break;
4303
4304 case MII_TG3_AUX_STAT_1000FULL:
4305 *speed = SPEED_1000;
4306 *duplex = DUPLEX_FULL;
4307 break;
4308
4309 default:
4310 if (tp->phy_flags & TG3_PHYFLG_IS_FET) {
4311 *speed = (val & MII_TG3_AUX_STAT_100) ? SPEED_100 :
4312 SPEED_10;
4313 *duplex = (val & MII_TG3_AUX_STAT_FULL) ? DUPLEX_FULL :
4314 DUPLEX_HALF;
4315 break;
4316 }
4317 *speed = SPEED_UNKNOWN;
4318 *duplex = DUPLEX_UNKNOWN;
4319 break;
4320 }
4321}
4322
4323static int tg3_phy_autoneg_cfg(struct tg3 *tp, u32 advertise, u32 flowctrl)
4324{
4325 int err = 0;
4326 u32 val, new_adv;
4327
4328 new_adv = ADVERTISE_CSMA;
4329 new_adv |= ethtool_adv_to_mii_adv_t(ethadv: advertise) & ADVERTISE_ALL;
4330 new_adv |= mii_advertise_flowctrl(cap: flowctrl);
4331
4332 err = tg3_writephy(tp, MII_ADVERTISE, val: new_adv);
4333 if (err)
4334 goto done;
4335
4336 if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY)) {
4337 new_adv = ethtool_adv_to_mii_ctrl1000_t(ethadv: advertise);
4338
4339 if (tg3_chip_rev_id(tp) == CHIPREV_ID_5701_A0 ||
4340 tg3_chip_rev_id(tp) == CHIPREV_ID_5701_B0)
4341 new_adv |= CTL1000_AS_MASTER | CTL1000_ENABLE_MASTER;
4342
4343 err = tg3_writephy(tp, MII_CTRL1000, val: new_adv);
4344 if (err)
4345 goto done;
4346 }
4347
4348 if (!(tp->phy_flags & TG3_PHYFLG_EEE_CAP))
4349 goto done;
4350
4351 tw32(TG3_CPMU_EEE_MODE,
4352 tr32(TG3_CPMU_EEE_MODE) & ~TG3_CPMU_EEEMD_LPI_ENABLE);
4353
4354 err = tg3_phy_toggle_auxctl_smdsp(tp, enable: true);
4355 if (!err) {
4356 u32 err2;
4357
4358 if (!tp->eee.eee_enabled)
4359 val = 0;
4360 else
4361 val = ethtool_adv_to_mmd_eee_adv_t(adv: advertise);
4362
4363 mii_eee_cap1_mod_linkmode_t(adv: tp->eee.advertised, val);
4364 err = tg3_phy_cl45_write(tp, MDIO_MMD_AN, MDIO_AN_EEE_ADV, val);
4365 if (err)
4366 val = 0;
4367
4368 switch (tg3_asic_rev(tp)) {
4369 case ASIC_REV_5717:
4370 case ASIC_REV_57765:
4371 case ASIC_REV_57766:
4372 case ASIC_REV_5719:
4373 /* If we advertised any eee advertisements above... */
4374 if (val)
4375 val = MII_TG3_DSP_TAP26_ALNOKO |
4376 MII_TG3_DSP_TAP26_RMRXSTO |
4377 MII_TG3_DSP_TAP26_OPCSINPT;
4378 tg3_phydsp_write(tp, MII_TG3_DSP_TAP26, val);
4379 fallthrough;
4380 case ASIC_REV_5720:
4381 case ASIC_REV_5762:
4382 if (!tg3_phydsp_read(tp, MII_TG3_DSP_CH34TP2, val: &val))
4383 tg3_phydsp_write(tp, MII_TG3_DSP_CH34TP2, val: val |
4384 MII_TG3_DSP_CH34TP2_HIBW01);
4385 }
4386
4387 err2 = tg3_phy_toggle_auxctl_smdsp(tp, enable: false);
4388 if (!err)
4389 err = err2;
4390 }
4391
4392done:
4393 return err;
4394}
4395
4396static void tg3_phy_copper_begin(struct tg3 *tp)
4397{
4398 if (tp->link_config.autoneg == AUTONEG_ENABLE ||
4399 (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)) {
4400 u32 adv, fc;
4401
4402 if ((tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER) &&
4403 !(tp->phy_flags & TG3_PHYFLG_KEEP_LINK_ON_PWRDN)) {
4404 adv = ADVERTISED_10baseT_Half |
4405 ADVERTISED_10baseT_Full;
4406 if (tg3_flag(tp, WOL_SPEED_100MB))
4407 adv |= ADVERTISED_100baseT_Half |
4408 ADVERTISED_100baseT_Full;
4409 if (tp->phy_flags & TG3_PHYFLG_1G_ON_VAUX_OK) {
4410 if (!(tp->phy_flags &
4411 TG3_PHYFLG_DISABLE_1G_HD_ADV))
4412 adv |= ADVERTISED_1000baseT_Half;
4413 adv |= ADVERTISED_1000baseT_Full;
4414 }
4415
4416 fc = FLOW_CTRL_TX | FLOW_CTRL_RX;
4417 } else {
4418 adv = tp->link_config.advertising;
4419 if (tp->phy_flags & TG3_PHYFLG_10_100_ONLY)
4420 adv &= ~(ADVERTISED_1000baseT_Half |
4421 ADVERTISED_1000baseT_Full);
4422
4423 fc = tp->link_config.flowctrl;
4424 }
4425
4426 tg3_phy_autoneg_cfg(tp, advertise: adv, flowctrl: fc);
4427
4428 if ((tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER) &&
4429 (tp->phy_flags & TG3_PHYFLG_KEEP_LINK_ON_PWRDN)) {
4430 /* Normally during power down we want to autonegotiate
4431 * the lowest possible speed for WOL. However, to avoid
4432 * link flap, we leave it untouched.
4433 */
4434 return;
4435 }
4436
4437 tg3_writephy(tp, MII_BMCR,
4438 BMCR_ANENABLE | BMCR_ANRESTART);
4439 } else {
4440 int i;
4441 u32 bmcr, orig_bmcr;
4442
4443 tp->link_config.active_speed = tp->link_config.speed;
4444 tp->link_config.active_duplex = tp->link_config.duplex;
4445
4446 if (tg3_asic_rev(tp) == ASIC_REV_5714) {
4447 /* With autoneg disabled, 5715 only links up when the
4448 * advertisement register has the configured speed
4449 * enabled.
4450 */
4451 tg3_writephy(tp, MII_ADVERTISE, ADVERTISE_ALL);
4452 }
4453
4454 bmcr = 0;
4455 switch (tp->link_config.speed) {
4456 default:
4457 case SPEED_10:
4458 break;
4459
4460 case SPEED_100:
4461 bmcr |= BMCR_SPEED100;
4462 break;
4463
4464 case SPEED_1000:
4465 bmcr |= BMCR_SPEED1000;
4466 break;
4467 }
4468
4469 if (tp->link_config.duplex == DUPLEX_FULL)
4470 bmcr |= BMCR_FULLDPLX;
4471
4472 if (!tg3_readphy(tp, MII_BMCR, val: &orig_bmcr) &&
4473 (bmcr != orig_bmcr)) {
4474 tg3_writephy(tp, MII_BMCR, BMCR_LOOPBACK);
4475 for (i = 0; i < 1500; i++) {
4476 u32 tmp;
4477
4478 udelay(usec: 10);
4479 if (tg3_readphy(tp, MII_BMSR, val: &tmp) ||
4480 tg3_readphy(tp, MII_BMSR, val: &tmp))
4481 continue;
4482 if (!(tmp & BMSR_LSTATUS)) {
4483 udelay(usec: 40);
4484 break;
4485 }
4486 }
4487 tg3_writephy(tp, MII_BMCR, val: bmcr);
4488 udelay(usec: 40);
4489 }
4490 }
4491}
4492
4493static int tg3_phy_pull_config(struct tg3 *tp)
4494{
4495 int err;
4496 u32 val;
4497
4498 err = tg3_readphy(tp, MII_BMCR, val: &val);
4499 if (err)
4500 goto done;
4501
4502 if (!(val & BMCR_ANENABLE)) {
4503 tp->link_config.autoneg = AUTONEG_DISABLE;
4504 tp->link_config.advertising = 0;
4505 tg3_flag_clear(tp, PAUSE_AUTONEG);
4506
4507 err = -EIO;
4508
4509 switch (val & (BMCR_SPEED1000 | BMCR_SPEED100)) {
4510 case 0:
4511 if (tp->phy_flags & TG3_PHYFLG_ANY_SERDES)
4512 goto done;
4513
4514 tp->link_config.speed = SPEED_10;
4515 break;
4516 case BMCR_SPEED100:
4517 if (tp->phy_flags & TG3_PHYFLG_ANY_SERDES)
4518 goto done;
4519
4520 tp->link_config.speed = SPEED_100;
4521 break;
4522 case BMCR_SPEED1000:
4523 if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY)) {
4524 tp->link_config.speed = SPEED_1000;
4525 break;
4526 }
4527 fallthrough;
4528 default:
4529 goto done;
4530 }
4531
4532 if (val & BMCR_FULLDPLX)
4533 tp->link_config.duplex = DUPLEX_FULL;
4534 else
4535 tp->link_config.duplex = DUPLEX_HALF;
4536
4537 tp->link_config.flowctrl = FLOW_CTRL_RX | FLOW_CTRL_TX;
4538
4539 err = 0;
4540 goto done;
4541 }
4542
4543 tp->link_config.autoneg = AUTONEG_ENABLE;
4544 tp->link_config.advertising = ADVERTISED_Autoneg;
4545 tg3_flag_set(tp, PAUSE_AUTONEG);
4546
4547 if (!(tp->phy_flags & TG3_PHYFLG_ANY_SERDES)) {
4548 u32 adv;
4549
4550 err = tg3_readphy(tp, MII_ADVERTISE, val: &val);
4551 if (err)
4552 goto done;
4553
4554 adv = mii_adv_to_ethtool_adv_t(adv: val & ADVERTISE_ALL);
4555 tp->link_config.advertising |= adv | ADVERTISED_TP;
4556
4557 tp->link_config.flowctrl = tg3_decode_flowctrl_1000T(adv: val);
4558 } else {
4559 tp->link_config.advertising |= ADVERTISED_FIBRE;
4560 }
4561
4562 if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY)) {
4563 u32 adv;
4564
4565 if (!(tp->phy_flags & TG3_PHYFLG_ANY_SERDES)) {
4566 err = tg3_readphy(tp, MII_CTRL1000, val: &val);
4567 if (err)
4568 goto done;
4569
4570 adv = mii_ctrl1000_to_ethtool_adv_t(adv: val);
4571 } else {
4572 err = tg3_readphy(tp, MII_ADVERTISE, val: &val);
4573 if (err)
4574 goto done;
4575
4576 adv = tg3_decode_flowctrl_1000X(adv: val);
4577 tp->link_config.flowctrl = adv;
4578
4579 val &= (ADVERTISE_1000XHALF | ADVERTISE_1000XFULL);
4580 adv = mii_adv_to_ethtool_adv_x(adv: val);
4581 }
4582
4583 tp->link_config.advertising |= adv;
4584 }
4585
4586done:
4587 return err;
4588}
4589
4590static int tg3_init_5401phy_dsp(struct tg3 *tp)
4591{
4592 int err;
4593
4594 /* Turn off tap power management. */
4595 /* Set Extended packet length bit */
4596 err = tg3_phy_auxctl_write(tp, MII_TG3_AUXCTL_SHDWSEL_AUXCTL, set: 0x4c20);
4597
4598 err |= tg3_phydsp_write(tp, reg: 0x0012, val: 0x1804);
4599 err |= tg3_phydsp_write(tp, reg: 0x0013, val: 0x1204);
4600 err |= tg3_phydsp_write(tp, reg: 0x8006, val: 0x0132);
4601 err |= tg3_phydsp_write(tp, reg: 0x8006, val: 0x0232);
4602 err |= tg3_phydsp_write(tp, reg: 0x201f, val: 0x0a20);
4603
4604 udelay(usec: 40);
4605
4606 return err;
4607}
4608
4609static bool tg3_phy_eee_config_ok(struct tg3 *tp)
4610{
4611 struct ethtool_keee eee = {};
4612
4613 if (!(tp->phy_flags & TG3_PHYFLG_EEE_CAP))
4614 return true;
4615
4616 tg3_eee_pull_config(tp, eee: &eee);
4617
4618 if (tp->eee.eee_enabled) {
4619 if (!linkmode_equal(src1: tp->eee.advertised, src2: eee.advertised) ||
4620 tp->eee.tx_lpi_timer != eee.tx_lpi_timer ||
4621 tp->eee.tx_lpi_enabled != eee.tx_lpi_enabled)
4622 return false;
4623 } else {
4624 /* EEE is disabled but we're advertising */
4625 if (!linkmode_empty(src: eee.advertised))
4626 return false;
4627 }
4628
4629 return true;
4630}
4631
4632static bool tg3_phy_copper_an_config_ok(struct tg3 *tp, u32 *lcladv)
4633{
4634 u32 advmsk, tgtadv, advertising;
4635
4636 advertising = tp->link_config.advertising;
4637 tgtadv = ethtool_adv_to_mii_adv_t(ethadv: advertising) & ADVERTISE_ALL;
4638
4639 advmsk = ADVERTISE_ALL;
4640 if (tp->link_config.active_duplex == DUPLEX_FULL) {
4641 tgtadv |= mii_advertise_flowctrl(cap: tp->link_config.flowctrl);
4642 advmsk |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
4643 }
4644
4645 if (tg3_readphy(tp, MII_ADVERTISE, val: lcladv))
4646 return false;
4647
4648 if ((*lcladv & advmsk) != tgtadv)
4649 return false;
4650
4651 if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY)) {
4652 u32 tg3_ctrl;
4653
4654 tgtadv = ethtool_adv_to_mii_ctrl1000_t(ethadv: advertising);
4655
4656 if (tg3_readphy(tp, MII_CTRL1000, val: &tg3_ctrl))
4657 return false;
4658
4659 if (tgtadv &&
4660 (tg3_chip_rev_id(tp) == CHIPREV_ID_5701_A0 ||
4661 tg3_chip_rev_id(tp) == CHIPREV_ID_5701_B0)) {
4662 tgtadv |= CTL1000_AS_MASTER | CTL1000_ENABLE_MASTER;
4663 tg3_ctrl &= (ADVERTISE_1000HALF | ADVERTISE_1000FULL |
4664 CTL1000_AS_MASTER | CTL1000_ENABLE_MASTER);
4665 } else {
4666 tg3_ctrl &= (ADVERTISE_1000HALF | ADVERTISE_1000FULL);
4667 }
4668
4669 if (tg3_ctrl != tgtadv)
4670 return false;
4671 }
4672
4673 return true;
4674}
4675
4676static bool tg3_phy_copper_fetch_rmtadv(struct tg3 *tp, u32 *rmtadv)
4677{
4678 u32 lpeth = 0;
4679
4680 if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY)) {
4681 u32 val;
4682
4683 if (tg3_readphy(tp, MII_STAT1000, val: &val))
4684 return false;
4685
4686 lpeth = mii_stat1000_to_ethtool_lpa_t(lpa: val);
4687 }
4688
4689 if (tg3_readphy(tp, MII_LPA, val: rmtadv))
4690 return false;
4691
4692 lpeth |= mii_lpa_to_ethtool_lpa_t(lpa: *rmtadv);
4693 tp->link_config.rmt_adv = lpeth;
4694
4695 return true;
4696}
4697
4698static bool tg3_test_and_report_link_chg(struct tg3 *tp, bool curr_link_up)
4699{
4700 if (curr_link_up != tp->link_up) {
4701 if (curr_link_up) {
4702 netif_carrier_on(dev: tp->dev);
4703 } else {
4704 netif_carrier_off(dev: tp->dev);
4705 if (tp->phy_flags & TG3_PHYFLG_MII_SERDES)
4706 tp->phy_flags &= ~TG3_PHYFLG_PARALLEL_DETECT;
4707 }
4708
4709 tg3_link_report(tp);
4710 return true;
4711 }
4712
4713 return false;
4714}
4715
4716static void tg3_clear_mac_status(struct tg3 *tp)
4717{
4718 tw32(MAC_EVENT, 0);
4719
4720 tw32_f(MAC_STATUS,
4721 MAC_STATUS_SYNC_CHANGED |
4722 MAC_STATUS_CFG_CHANGED |
4723 MAC_STATUS_MI_COMPLETION |
4724 MAC_STATUS_LNKSTATE_CHANGED);
4725 udelay(usec: 40);
4726}
4727
4728static void tg3_setup_eee(struct tg3 *tp)
4729{
4730 u32 val;
4731
4732 val = TG3_CPMU_EEE_LNKIDL_PCIE_NL0 |
4733 TG3_CPMU_EEE_LNKIDL_UART_IDL;
4734 if (tg3_chip_rev_id(tp) == CHIPREV_ID_57765_A0)
4735 val |= TG3_CPMU_EEE_LNKIDL_APE_TX_MT;
4736
4737 tw32_f(TG3_CPMU_EEE_LNKIDL_CTRL, val);
4738
4739 tw32_f(TG3_CPMU_EEE_CTRL,
4740 TG3_CPMU_EEE_CTRL_EXIT_20_1_US);
4741
4742 val = TG3_CPMU_EEEMD_ERLY_L1_XIT_DET |
4743 (tp->eee.tx_lpi_enabled ? TG3_CPMU_EEEMD_LPI_IN_TX : 0) |
4744 TG3_CPMU_EEEMD_LPI_IN_RX |
4745 TG3_CPMU_EEEMD_EEE_ENABLE;
4746
4747 if (tg3_asic_rev(tp) != ASIC_REV_5717)
4748 val |= TG3_CPMU_EEEMD_SND_IDX_DET_EN;
4749
4750 if (tg3_flag(tp, ENABLE_APE))
4751 val |= TG3_CPMU_EEEMD_APE_TX_DET_EN;
4752
4753 tw32_f(TG3_CPMU_EEE_MODE, tp->eee.eee_enabled ? val : 0);
4754
4755 tw32_f(TG3_CPMU_EEE_DBTMR1,
4756 TG3_CPMU_DBTMR1_PCIEXIT_2047US |
4757 (tp->eee.tx_lpi_timer & 0xffff));
4758
4759 tw32_f(TG3_CPMU_EEE_DBTMR2,
4760 TG3_CPMU_DBTMR2_APE_TX_2047US |
4761 TG3_CPMU_DBTMR2_TXIDXEQ_2047US);
4762}
4763
4764static int tg3_setup_copper_phy(struct tg3 *tp, bool force_reset)
4765{
4766 bool current_link_up;
4767 u32 bmsr, val;
4768 u32 lcl_adv, rmt_adv;
4769 u32 current_speed;
4770 u8 current_duplex;
4771 int i, err;
4772
4773 tg3_clear_mac_status(tp);
4774
4775 if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
4776 tw32_f(MAC_MI_MODE,
4777 (tp->mi_mode & ~MAC_MI_MODE_AUTO_POLL));
4778 udelay(usec: 80);
4779 }
4780
4781 tg3_phy_auxctl_write(tp, MII_TG3_AUXCTL_SHDWSEL_PWRCTL, set: 0);
4782
4783 /* Some third-party PHYs need to be reset on link going
4784 * down.
4785 */
4786 if ((tg3_asic_rev(tp) == ASIC_REV_5703 ||
4787 tg3_asic_rev(tp) == ASIC_REV_5704 ||
4788 tg3_asic_rev(tp) == ASIC_REV_5705) &&
4789 tp->link_up) {
4790 tg3_readphy(tp, MII_BMSR, val: &bmsr);
4791 if (!tg3_readphy(tp, MII_BMSR, val: &bmsr) &&
4792 !(bmsr & BMSR_LSTATUS))
4793 force_reset = true;
4794 }
4795 if (force_reset)
4796 tg3_phy_reset(tp);
4797
4798 if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5401) {
4799 tg3_readphy(tp, MII_BMSR, val: &bmsr);
4800 if (tg3_readphy(tp, MII_BMSR, val: &bmsr) ||
4801 !tg3_flag(tp, INIT_COMPLETE))
4802 bmsr = 0;
4803
4804 if (!(bmsr & BMSR_LSTATUS)) {
4805 err = tg3_init_5401phy_dsp(tp);
4806 if (err)
4807 return err;
4808
4809 tg3_readphy(tp, MII_BMSR, val: &bmsr);
4810 for (i = 0; i < 1000; i++) {
4811 udelay(usec: 10);
4812 if (!tg3_readphy(tp, MII_BMSR, val: &bmsr) &&
4813 (bmsr & BMSR_LSTATUS)) {
4814 udelay(usec: 40);
4815 break;
4816 }
4817 }
4818
4819 if ((tp->phy_id & TG3_PHY_ID_REV_MASK) ==
4820 TG3_PHY_REV_BCM5401_B0 &&
4821 !(bmsr & BMSR_LSTATUS) &&
4822 tp->link_config.active_speed == SPEED_1000) {
4823 err = tg3_phy_reset(tp);
4824 if (!err)
4825 err = tg3_init_5401phy_dsp(tp);
4826 if (err)
4827 return err;
4828 }
4829 }
4830 } else if (tg3_chip_rev_id(tp) == CHIPREV_ID_5701_A0 ||
4831 tg3_chip_rev_id(tp) == CHIPREV_ID_5701_B0) {
4832 /* 5701 {A0,B0} CRC bug workaround */
4833 tg3_writephy(tp, reg: 0x15, val: 0x0a75);
4834 tg3_writephy(tp, MII_TG3_MISC_SHDW, val: 0x8c68);
4835 tg3_writephy(tp, MII_TG3_MISC_SHDW, val: 0x8d68);
4836 tg3_writephy(tp, MII_TG3_MISC_SHDW, val: 0x8c68);
4837 }
4838
4839 /* Clear pending interrupts... */
4840 tg3_readphy(tp, MII_TG3_ISTAT, val: &val);
4841 tg3_readphy(tp, MII_TG3_ISTAT, val: &val);
4842
4843 if (tp->phy_flags & TG3_PHYFLG_USE_MI_INTERRUPT)
4844 tg3_writephy(tp, MII_TG3_IMASK, val: ~MII_TG3_INT_LINKCHG);
4845 else if (!(tp->phy_flags & TG3_PHYFLG_IS_FET))
4846 tg3_writephy(tp, MII_TG3_IMASK, val: ~0);
4847
4848 if (tg3_asic_rev(tp) == ASIC_REV_5700 ||
4849 tg3_asic_rev(tp) == ASIC_REV_5701) {
4850 if (tp->led_ctrl == LED_CTRL_MODE_PHY_1)
4851 tg3_writephy(tp, MII_TG3_EXT_CTRL,
4852 MII_TG3_EXT_CTRL_LNK3_LED_MODE);
4853 else
4854 tg3_writephy(tp, MII_TG3_EXT_CTRL, val: 0);
4855 }
4856
4857 current_link_up = false;
4858 current_speed = SPEED_UNKNOWN;
4859 current_duplex = DUPLEX_UNKNOWN;
4860 tp->phy_flags &= ~TG3_PHYFLG_MDIX_STATE;
4861 tp->link_config.rmt_adv = 0;
4862
4863 if (tp->phy_flags & TG3_PHYFLG_CAPACITIVE_COUPLING) {
4864 err = tg3_phy_auxctl_read(tp,
4865 MII_TG3_AUXCTL_SHDWSEL_MISCTEST,
4866 val: &val);
4867 if (!err && !(val & (1 << 10))) {
4868 tg3_phy_auxctl_write(tp,
4869 MII_TG3_AUXCTL_SHDWSEL_MISCTEST,
4870 set: val | (1 << 10));
4871 goto relink;
4872 }
4873 }
4874
4875 bmsr = 0;
4876 for (i = 0; i < 100; i++) {
4877 tg3_readphy(tp, MII_BMSR, val: &bmsr);
4878 if (!tg3_readphy(tp, MII_BMSR, val: &bmsr) &&
4879 (bmsr & BMSR_LSTATUS))
4880 break;
4881 udelay(usec: 40);
4882 }
4883
4884 if (bmsr & BMSR_LSTATUS) {
4885 u32 aux_stat, bmcr;
4886
4887 tg3_readphy(tp, MII_TG3_AUX_STAT, val: &aux_stat);
4888 for (i = 0; i < 2000; i++) {
4889 udelay(usec: 10);
4890 if (!tg3_readphy(tp, MII_TG3_AUX_STAT, val: &aux_stat) &&
4891 aux_stat)
4892 break;
4893 }
4894
4895 tg3_aux_stat_to_speed_duplex(tp, val: aux_stat,
4896 speed: &current_speed,
4897 duplex: &current_duplex);
4898
4899 bmcr = 0;
4900 for (i = 0; i < 200; i++) {
4901 tg3_readphy(tp, MII_BMCR, val: &bmcr);
4902 if (tg3_readphy(tp, MII_BMCR, val: &bmcr))
4903 continue;
4904 if (bmcr && bmcr != 0x7fff)
4905 break;
4906 udelay(usec: 10);
4907 }
4908
4909 lcl_adv = 0;
4910 rmt_adv = 0;
4911
4912 tp->link_config.active_speed = current_speed;
4913 tp->link_config.active_duplex = current_duplex;
4914
4915 if (tp->link_config.autoneg == AUTONEG_ENABLE) {
4916 bool eee_config_ok = tg3_phy_eee_config_ok(tp);
4917
4918 if ((bmcr & BMCR_ANENABLE) &&
4919 eee_config_ok &&
4920 tg3_phy_copper_an_config_ok(tp, lcladv: &lcl_adv) &&
4921 tg3_phy_copper_fetch_rmtadv(tp, rmtadv: &rmt_adv))
4922 current_link_up = true;
4923
4924 /* EEE settings changes take effect only after a phy
4925 * reset. If we have skipped a reset due to Link Flap
4926 * Avoidance being enabled, do it now.
4927 */
4928 if (!eee_config_ok &&
4929 (tp->phy_flags & TG3_PHYFLG_KEEP_LINK_ON_PWRDN) &&
4930 !force_reset) {
4931 tg3_setup_eee(tp);
4932 tg3_phy_reset(tp);
4933 }
4934 } else {
4935 if (!(bmcr & BMCR_ANENABLE) &&
4936 tp->link_config.speed == current_speed &&
4937 tp->link_config.duplex == current_duplex) {
4938 current_link_up = true;
4939 }
4940 }
4941
4942 if (current_link_up &&
4943 tp->link_config.active_duplex == DUPLEX_FULL) {
4944 u32 reg, bit;
4945
4946 if (tp->phy_flags & TG3_PHYFLG_IS_FET) {
4947 reg = MII_TG3_FET_GEN_STAT;
4948 bit = MII_TG3_FET_GEN_STAT_MDIXSTAT;
4949 } else {
4950 reg = MII_TG3_EXT_STAT;
4951 bit = MII_TG3_EXT_STAT_MDIX;
4952 }
4953
4954 if (!tg3_readphy(tp, reg, val: &val) && (val & bit))
4955 tp->phy_flags |= TG3_PHYFLG_MDIX_STATE;
4956
4957 tg3_setup_flow_control(tp, lcladv: lcl_adv, rmtadv: rmt_adv);
4958 }
4959 }
4960
4961relink:
4962 if (!current_link_up || (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)) {
4963 tg3_phy_copper_begin(tp);
4964
4965 if (tg3_flag(tp, ROBOSWITCH)) {
4966 current_link_up = true;
4967 /* FIXME: when BCM5325 switch is used use 100 MBit/s */
4968 current_speed = SPEED_1000;
4969 current_duplex = DUPLEX_FULL;
4970 tp->link_config.active_speed = current_speed;
4971 tp->link_config.active_duplex = current_duplex;
4972 }
4973
4974 tg3_readphy(tp, MII_BMSR, val: &bmsr);
4975 if ((!tg3_readphy(tp, MII_BMSR, val: &bmsr) && (bmsr & BMSR_LSTATUS)) ||
4976 (tp->mac_mode & MAC_MODE_PORT_INT_LPBACK))
4977 current_link_up = true;
4978 }
4979
4980 tp->mac_mode &= ~MAC_MODE_PORT_MODE_MASK;
4981 if (current_link_up) {
4982 if (tp->link_config.active_speed == SPEED_100 ||
4983 tp->link_config.active_speed == SPEED_10)
4984 tp->mac_mode |= MAC_MODE_PORT_MODE_MII;
4985 else
4986 tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
4987 } else if (tp->phy_flags & TG3_PHYFLG_IS_FET)
4988 tp->mac_mode |= MAC_MODE_PORT_MODE_MII;
4989 else
4990 tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
4991
4992 /* In order for the 5750 core in BCM4785 chip to work properly
4993 * in RGMII mode, the Led Control Register must be set up.
4994 */
4995 if (tg3_flag(tp, RGMII_MODE)) {
4996 u32 led_ctrl = tr32(MAC_LED_CTRL);
4997 led_ctrl &= ~(LED_CTRL_1000MBPS_ON | LED_CTRL_100MBPS_ON);
4998
4999 if (tp->link_config.active_speed == SPEED_10)
5000 led_ctrl |= LED_CTRL_LNKLED_OVERRIDE;
5001 else if (tp->link_config.active_speed == SPEED_100)
5002 led_ctrl |= (LED_CTRL_LNKLED_OVERRIDE |
5003 LED_CTRL_100MBPS_ON);
5004 else if (tp->link_config.active_speed == SPEED_1000)
5005 led_ctrl |= (LED_CTRL_LNKLED_OVERRIDE |
5006 LED_CTRL_1000MBPS_ON);
5007
5008 tw32(MAC_LED_CTRL, led_ctrl);
5009 udelay(usec: 40);
5010 }
5011
5012 tp->mac_mode &= ~MAC_MODE_HALF_DUPLEX;
5013 if (tp->link_config.active_duplex == DUPLEX_HALF)
5014 tp->mac_mode |= MAC_MODE_HALF_DUPLEX;
5015
5016 if (tg3_asic_rev(tp) == ASIC_REV_5700) {
5017 if (current_link_up &&
5018 tg3_5700_link_polarity(tp, speed: tp->link_config.active_speed))
5019 tp->mac_mode |= MAC_MODE_LINK_POLARITY;
5020 else
5021 tp->mac_mode &= ~MAC_MODE_LINK_POLARITY;
5022 }
5023
5024 /* ??? Without this setting Netgear GA302T PHY does not
5025 * ??? send/receive packets...
5026 */
5027 if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5411 &&
5028 tg3_chip_rev_id(tp) == CHIPREV_ID_5700_ALTIMA) {
5029 tp->mi_mode |= MAC_MI_MODE_AUTO_POLL;
5030 tw32_f(MAC_MI_MODE, tp->mi_mode);
5031 udelay(usec: 80);
5032 }
5033
5034 tw32_f(MAC_MODE, tp->mac_mode);
5035 udelay(usec: 40);
5036
5037 tg3_phy_eee_adjust(tp, current_link_up);
5038
5039 if (tg3_flag(tp, USE_LINKCHG_REG)) {
5040 /* Polled via timer. */
5041 tw32_f(MAC_EVENT, 0);
5042 } else {
5043 tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
5044 }
5045 udelay(usec: 40);
5046
5047 if (tg3_asic_rev(tp) == ASIC_REV_5700 &&
5048 current_link_up &&
5049 tp->link_config.active_speed == SPEED_1000 &&
5050 (tg3_flag(tp, PCIX_MODE) || tg3_flag(tp, PCI_HIGH_SPEED))) {
5051 udelay(usec: 120);
5052 tw32_f(MAC_STATUS,
5053 (MAC_STATUS_SYNC_CHANGED |
5054 MAC_STATUS_CFG_CHANGED));
5055 udelay(usec: 40);
5056 tg3_write_mem(tp,
5057 NIC_SRAM_FIRMWARE_MBOX,
5058 NIC_SRAM_FIRMWARE_MBOX_MAGIC2);
5059 }
5060
5061 /* Prevent send BD corruption. */
5062 if (tg3_flag(tp, CLKREQ_BUG)) {
5063 if (tp->link_config.active_speed == SPEED_100 ||
5064 tp->link_config.active_speed == SPEED_10)
5065 pcie_capability_clear_word(dev: tp->pdev, PCI_EXP_LNKCTL,
5066 PCI_EXP_LNKCTL_CLKREQ_EN);
5067 else
5068 pcie_capability_set_word(dev: tp->pdev, PCI_EXP_LNKCTL,
5069 PCI_EXP_LNKCTL_CLKREQ_EN);
5070 }
5071
5072 tg3_test_and_report_link_chg(tp, curr_link_up: current_link_up);
5073
5074 return 0;
5075}
5076
5077struct tg3_fiber_aneginfo {
5078 int state;
5079#define ANEG_STATE_UNKNOWN 0
5080#define ANEG_STATE_AN_ENABLE 1
5081#define ANEG_STATE_RESTART_INIT 2
5082#define ANEG_STATE_RESTART 3
5083#define ANEG_STATE_DISABLE_LINK_OK 4
5084#define ANEG_STATE_ABILITY_DETECT_INIT 5
5085#define ANEG_STATE_ABILITY_DETECT 6
5086#define ANEG_STATE_ACK_DETECT_INIT 7
5087#define ANEG_STATE_ACK_DETECT 8
5088#define ANEG_STATE_COMPLETE_ACK_INIT 9
5089#define ANEG_STATE_COMPLETE_ACK 10
5090#define ANEG_STATE_IDLE_DETECT_INIT 11
5091#define ANEG_STATE_IDLE_DETECT 12
5092#define ANEG_STATE_LINK_OK 13
5093#define ANEG_STATE_NEXT_PAGE_WAIT_INIT 14
5094#define ANEG_STATE_NEXT_PAGE_WAIT 15
5095
5096 u32 flags;
5097#define MR_AN_ENABLE 0x00000001
5098#define MR_RESTART_AN 0x00000002
5099#define MR_AN_COMPLETE 0x00000004
5100#define MR_PAGE_RX 0x00000008
5101#define MR_NP_LOADED 0x00000010
5102#define MR_TOGGLE_TX 0x00000020
5103#define MR_LP_ADV_FULL_DUPLEX 0x00000040
5104#define MR_LP_ADV_HALF_DUPLEX 0x00000080
5105#define MR_LP_ADV_SYM_PAUSE 0x00000100
5106#define MR_LP_ADV_ASYM_PAUSE 0x00000200
5107#define MR_LP_ADV_REMOTE_FAULT1 0x00000400
5108#define MR_LP_ADV_REMOTE_FAULT2 0x00000800
5109#define MR_LP_ADV_NEXT_PAGE 0x00001000
5110#define MR_TOGGLE_RX 0x00002000
5111#define MR_NP_RX 0x00004000
5112
5113#define MR_LINK_OK 0x80000000
5114
5115 unsigned long link_time, cur_time;
5116
5117 u32 ability_match_cfg;
5118 int ability_match_count;
5119
5120 char ability_match, idle_match, ack_match;
5121
5122 u32 txconfig, rxconfig;
5123#define ANEG_CFG_NP 0x00000080
5124#define ANEG_CFG_ACK 0x00000040
5125#define ANEG_CFG_RF2 0x00000020
5126#define ANEG_CFG_RF1 0x00000010
5127#define ANEG_CFG_PS2 0x00000001
5128#define ANEG_CFG_PS1 0x00008000
5129#define ANEG_CFG_HD 0x00004000
5130#define ANEG_CFG_FD 0x00002000
5131#define ANEG_CFG_INVAL 0x00001f06
5132
5133};
5134#define ANEG_OK 0
5135#define ANEG_DONE 1
5136#define ANEG_TIMER_ENAB 2
5137#define ANEG_FAILED -1
5138
5139#define ANEG_STATE_SETTLE_TIME 10000
5140
5141static int tg3_fiber_aneg_smachine(struct tg3 *tp,
5142 struct tg3_fiber_aneginfo *ap)
5143{
5144 u16 flowctrl;
5145 unsigned long delta;
5146 u32 rx_cfg_reg;
5147 int ret;
5148
5149 if (ap->state == ANEG_STATE_UNKNOWN) {
5150 ap->rxconfig = 0;
5151 ap->link_time = 0;
5152 ap->cur_time = 0;
5153 ap->ability_match_cfg = 0;
5154 ap->ability_match_count = 0;
5155 ap->ability_match = 0;
5156 ap->idle_match = 0;
5157 ap->ack_match = 0;
5158 }
5159 ap->cur_time++;
5160
5161 if (tr32(MAC_STATUS) & MAC_STATUS_RCVD_CFG) {
5162 rx_cfg_reg = tr32(MAC_RX_AUTO_NEG);
5163
5164 if (rx_cfg_reg != ap->ability_match_cfg) {
5165 ap->ability_match_cfg = rx_cfg_reg;
5166 ap->ability_match = 0;
5167 ap->ability_match_count = 0;
5168 } else {
5169 if (++ap->ability_match_count > 1) {
5170 ap->ability_match = 1;
5171 ap->ability_match_cfg = rx_cfg_reg;
5172 }
5173 }
5174 if (rx_cfg_reg & ANEG_CFG_ACK)
5175 ap->ack_match = 1;
5176 else
5177 ap->ack_match = 0;
5178
5179 ap->idle_match = 0;
5180 } else {
5181 ap->idle_match = 1;
5182 ap->ability_match_cfg = 0;
5183 ap->ability_match_count = 0;
5184 ap->ability_match = 0;
5185 ap->ack_match = 0;
5186
5187 rx_cfg_reg = 0;
5188 }
5189
5190 ap->rxconfig = rx_cfg_reg;
5191 ret = ANEG_OK;
5192
5193 switch (ap->state) {
5194 case ANEG_STATE_UNKNOWN:
5195 if (ap->flags & (MR_AN_ENABLE | MR_RESTART_AN))
5196 ap->state = ANEG_STATE_AN_ENABLE;
5197
5198 fallthrough;
5199 case ANEG_STATE_AN_ENABLE:
5200 ap->flags &= ~(MR_AN_COMPLETE | MR_PAGE_RX);
5201 if (ap->flags & MR_AN_ENABLE) {
5202 ap->link_time = 0;
5203 ap->cur_time = 0;
5204 ap->ability_match_cfg = 0;
5205 ap->ability_match_count = 0;
5206 ap->ability_match = 0;
5207 ap->idle_match = 0;
5208 ap->ack_match = 0;
5209
5210 ap->state = ANEG_STATE_RESTART_INIT;
5211 } else {
5212 ap->state = ANEG_STATE_DISABLE_LINK_OK;
5213 }
5214 break;
5215
5216 case ANEG_STATE_RESTART_INIT:
5217 ap->link_time = ap->cur_time;
5218 ap->flags &= ~(MR_NP_LOADED);
5219 ap->txconfig = 0;
5220 tw32(MAC_TX_AUTO_NEG, 0);
5221 tp->mac_mode |= MAC_MODE_SEND_CONFIGS;
5222 tw32_f(MAC_MODE, tp->mac_mode);
5223 udelay(usec: 40);
5224
5225 ret = ANEG_TIMER_ENAB;
5226 ap->state = ANEG_STATE_RESTART;
5227
5228 fallthrough;
5229 case ANEG_STATE_RESTART:
5230 delta = ap->cur_time - ap->link_time;
5231 if (delta > ANEG_STATE_SETTLE_TIME)
5232 ap->state = ANEG_STATE_ABILITY_DETECT_INIT;
5233 else
5234 ret = ANEG_TIMER_ENAB;
5235 break;
5236
5237 case ANEG_STATE_DISABLE_LINK_OK:
5238 ret = ANEG_DONE;
5239 break;
5240
5241 case ANEG_STATE_ABILITY_DETECT_INIT:
5242 ap->flags &= ~(MR_TOGGLE_TX);
5243 ap->txconfig = ANEG_CFG_FD;
5244 flowctrl = tg3_advert_flowctrl_1000X(flow_ctrl: tp->link_config.flowctrl);
5245 if (flowctrl & ADVERTISE_1000XPAUSE)
5246 ap->txconfig |= ANEG_CFG_PS1;
5247 if (flowctrl & ADVERTISE_1000XPSE_ASYM)
5248 ap->txconfig |= ANEG_CFG_PS2;
5249 tw32(MAC_TX_AUTO_NEG, ap->txconfig);
5250 tp->mac_mode |= MAC_MODE_SEND_CONFIGS;
5251 tw32_f(MAC_MODE, tp->mac_mode);
5252 udelay(usec: 40);
5253
5254 ap->state = ANEG_STATE_ABILITY_DETECT;
5255 break;
5256
5257 case ANEG_STATE_ABILITY_DETECT:
5258 if (ap->ability_match != 0 && ap->rxconfig != 0)
5259 ap->state = ANEG_STATE_ACK_DETECT_INIT;
5260 break;
5261
5262 case ANEG_STATE_ACK_DETECT_INIT:
5263 ap->txconfig |= ANEG_CFG_ACK;
5264 tw32(MAC_TX_AUTO_NEG, ap->txconfig);
5265 tp->mac_mode |= MAC_MODE_SEND_CONFIGS;
5266 tw32_f(MAC_MODE, tp->mac_mode);
5267 udelay(usec: 40);
5268
5269 ap->state = ANEG_STATE_ACK_DETECT;
5270
5271 fallthrough;
5272 case ANEG_STATE_ACK_DETECT:
5273 if (ap->ack_match != 0) {
5274 if ((ap->rxconfig & ~ANEG_CFG_ACK) ==
5275 (ap->ability_match_cfg & ~ANEG_CFG_ACK)) {
5276 ap->state = ANEG_STATE_COMPLETE_ACK_INIT;
5277 } else {
5278 ap->state = ANEG_STATE_AN_ENABLE;
5279 }
5280 } else if (ap->ability_match != 0 &&
5281 ap->rxconfig == 0) {
5282 ap->state = ANEG_STATE_AN_ENABLE;
5283 }
5284 break;
5285
5286 case ANEG_STATE_COMPLETE_ACK_INIT:
5287 if (ap->rxconfig & ANEG_CFG_INVAL) {
5288 ret = ANEG_FAILED;
5289 break;
5290 }
5291 ap->flags &= ~(MR_LP_ADV_FULL_DUPLEX |
5292 MR_LP_ADV_HALF_DUPLEX |
5293 MR_LP_ADV_SYM_PAUSE |
5294 MR_LP_ADV_ASYM_PAUSE |
5295 MR_LP_ADV_REMOTE_FAULT1 |
5296 MR_LP_ADV_REMOTE_FAULT2 |
5297 MR_LP_ADV_NEXT_PAGE |
5298 MR_TOGGLE_RX |
5299 MR_NP_RX);
5300 if (ap->rxconfig & ANEG_CFG_FD)
5301 ap->flags |= MR_LP_ADV_FULL_DUPLEX;
5302 if (ap->rxconfig & ANEG_CFG_HD)
5303 ap->flags |= MR_LP_ADV_HALF_DUPLEX;
5304 if (ap->rxconfig & ANEG_CFG_PS1)
5305 ap->flags |= MR_LP_ADV_SYM_PAUSE;
5306 if (ap->rxconfig & ANEG_CFG_PS2)
5307 ap->flags |= MR_LP_ADV_ASYM_PAUSE;
5308 if (ap->rxconfig & ANEG_CFG_RF1)
5309 ap->flags |= MR_LP_ADV_REMOTE_FAULT1;
5310 if (ap->rxconfig & ANEG_CFG_RF2)
5311 ap->flags |= MR_LP_ADV_REMOTE_FAULT2;
5312 if (ap->rxconfig & ANEG_CFG_NP)
5313 ap->flags |= MR_LP_ADV_NEXT_PAGE;
5314
5315 ap->link_time = ap->cur_time;
5316
5317 ap->flags ^= (MR_TOGGLE_TX);
5318 if (ap->rxconfig & 0x0008)
5319 ap->flags |= MR_TOGGLE_RX;
5320 if (ap->rxconfig & ANEG_CFG_NP)
5321 ap->flags |= MR_NP_RX;
5322 ap->flags |= MR_PAGE_RX;
5323
5324 ap->state = ANEG_STATE_COMPLETE_ACK;
5325 ret = ANEG_TIMER_ENAB;
5326 break;
5327
5328 case ANEG_STATE_COMPLETE_ACK:
5329 if (ap->ability_match != 0 &&
5330 ap->rxconfig == 0) {
5331 ap->state = ANEG_STATE_AN_ENABLE;
5332 break;
5333 }
5334 delta = ap->cur_time - ap->link_time;
5335 if (delta > ANEG_STATE_SETTLE_TIME) {
5336 if (!(ap->flags & (MR_LP_ADV_NEXT_PAGE))) {
5337 ap->state = ANEG_STATE_IDLE_DETECT_INIT;
5338 } else {
5339 if ((ap->txconfig & ANEG_CFG_NP) == 0 &&
5340 !(ap->flags & MR_NP_RX)) {
5341 ap->state = ANEG_STATE_IDLE_DETECT_INIT;
5342 } else {
5343 ret = ANEG_FAILED;
5344 }
5345 }
5346 }
5347 break;
5348
5349 case ANEG_STATE_IDLE_DETECT_INIT:
5350 ap->link_time = ap->cur_time;
5351 tp->mac_mode &= ~MAC_MODE_SEND_CONFIGS;
5352 tw32_f(MAC_MODE, tp->mac_mode);
5353 udelay(usec: 40);
5354
5355 ap->state = ANEG_STATE_IDLE_DETECT;
5356 ret = ANEG_TIMER_ENAB;
5357 break;
5358
5359 case ANEG_STATE_IDLE_DETECT:
5360 if (ap->ability_match != 0 &&
5361 ap->rxconfig == 0) {
5362 ap->state = ANEG_STATE_AN_ENABLE;
5363 break;
5364 }
5365 delta = ap->cur_time - ap->link_time;
5366 if (delta > ANEG_STATE_SETTLE_TIME) {
5367 /* XXX another gem from the Broadcom driver :( */
5368 ap->state = ANEG_STATE_LINK_OK;
5369 }
5370 break;
5371
5372 case ANEG_STATE_LINK_OK:
5373 ap->flags |= (MR_AN_COMPLETE | MR_LINK_OK);
5374 ret = ANEG_DONE;
5375 break;
5376
5377 case ANEG_STATE_NEXT_PAGE_WAIT_INIT:
5378 /* ??? unimplemented */
5379 break;
5380
5381 case ANEG_STATE_NEXT_PAGE_WAIT:
5382 /* ??? unimplemented */
5383 break;
5384
5385 default:
5386 ret = ANEG_FAILED;
5387 break;
5388 }
5389
5390 return ret;
5391}
5392
5393static int fiber_autoneg(struct tg3 *tp, u32 *txflags, u32 *rxflags)
5394{
5395 int res = 0;
5396 struct tg3_fiber_aneginfo aninfo;
5397 int status = ANEG_FAILED;
5398 unsigned int tick;
5399 u32 tmp;
5400
5401 tw32_f(MAC_TX_AUTO_NEG, 0);
5402
5403 tmp = tp->mac_mode & ~MAC_MODE_PORT_MODE_MASK;
5404 tw32_f(MAC_MODE, tmp | MAC_MODE_PORT_MODE_GMII);
5405 udelay(usec: 40);
5406
5407 tw32_f(MAC_MODE, tp->mac_mode | MAC_MODE_SEND_CONFIGS);
5408 udelay(usec: 40);
5409
5410 memset(s: &aninfo, c: 0, n: sizeof(aninfo));
5411 aninfo.flags |= MR_AN_ENABLE;
5412 aninfo.state = ANEG_STATE_UNKNOWN;
5413 aninfo.cur_time = 0;
5414 tick = 0;
5415 while (++tick < 195000) {
5416 status = tg3_fiber_aneg_smachine(tp, ap: &aninfo);
5417 if (status == ANEG_DONE || status == ANEG_FAILED)
5418 break;
5419
5420 udelay(usec: 1);
5421 }
5422
5423 tp->mac_mode &= ~MAC_MODE_SEND_CONFIGS;
5424 tw32_f(MAC_MODE, tp->mac_mode);
5425 udelay(usec: 40);
5426
5427 *txflags = aninfo.txconfig;
5428 *rxflags = aninfo.flags;
5429
5430 if (status == ANEG_DONE &&
5431 (aninfo.flags & (MR_AN_COMPLETE | MR_LINK_OK |
5432 MR_LP_ADV_FULL_DUPLEX)))
5433 res = 1;
5434
5435 return res;
5436}
5437
5438static void tg3_init_bcm8002(struct tg3 *tp)
5439{
5440 u32 mac_status = tr32(MAC_STATUS);
5441 int i;
5442
5443 /* Reset when initting first time or we have a link. */
5444 if (tg3_flag(tp, INIT_COMPLETE) &&
5445 !(mac_status & MAC_STATUS_PCS_SYNCED))
5446 return;
5447
5448 /* Set PLL lock range. */
5449 tg3_writephy(tp, reg: 0x16, val: 0x8007);
5450
5451 /* SW reset */
5452 tg3_writephy(tp, MII_BMCR, BMCR_RESET);
5453
5454 /* Wait for reset to complete. */
5455 /* XXX schedule_timeout() ... */
5456 for (i = 0; i < 500; i++)
5457 udelay(usec: 10);
5458
5459 /* Config mode; select PMA/Ch 1 regs. */
5460 tg3_writephy(tp, reg: 0x10, val: 0x8411);
5461
5462 /* Enable auto-lock and comdet, select txclk for tx. */
5463 tg3_writephy(tp, reg: 0x11, val: 0x0a10);
5464
5465 tg3_writephy(tp, reg: 0x18, val: 0x00a0);
5466 tg3_writephy(tp, reg: 0x16, val: 0x41ff);
5467
5468 /* Assert and deassert POR. */
5469 tg3_writephy(tp, reg: 0x13, val: 0x0400);
5470 udelay(usec: 40);
5471 tg3_writephy(tp, reg: 0x13, val: 0x0000);
5472
5473 tg3_writephy(tp, reg: 0x11, val: 0x0a50);
5474 udelay(usec: 40);
5475 tg3_writephy(tp, reg: 0x11, val: 0x0a10);
5476
5477 /* Wait for signal to stabilize */
5478 /* XXX schedule_timeout() ... */
5479 for (i = 0; i < 15000; i++)
5480 udelay(usec: 10);
5481
5482 /* Deselect the channel register so we can read the PHYID
5483 * later.
5484 */
5485 tg3_writephy(tp, reg: 0x10, val: 0x8011);
5486}
5487
5488static bool tg3_setup_fiber_hw_autoneg(struct tg3 *tp, u32 mac_status)
5489{
5490 u16 flowctrl;
5491 bool current_link_up;
5492 u32 sg_dig_ctrl, sg_dig_status;
5493 u32 serdes_cfg, expected_sg_dig_ctrl;
5494 int workaround, port_a;
5495
5496 serdes_cfg = 0;
5497 workaround = 0;
5498 port_a = 1;
5499 current_link_up = false;
5500
5501 if (tg3_chip_rev_id(tp) != CHIPREV_ID_5704_A0 &&
5502 tg3_chip_rev_id(tp) != CHIPREV_ID_5704_A1) {
5503 workaround = 1;
5504 if (tr32(TG3PCI_DUAL_MAC_CTRL) & DUAL_MAC_CTRL_ID)
5505 port_a = 0;
5506
5507 /* preserve bits 0-11,13,14 for signal pre-emphasis */
5508 /* preserve bits 20-23 for voltage regulator */
5509 serdes_cfg = tr32(MAC_SERDES_CFG) & 0x00f06fff;
5510 }
5511
5512 sg_dig_ctrl = tr32(SG_DIG_CTRL);
5513
5514 if (tp->link_config.autoneg != AUTONEG_ENABLE) {
5515 if (sg_dig_ctrl & SG_DIG_USING_HW_AUTONEG) {
5516 if (workaround) {
5517 u32 val = serdes_cfg;
5518
5519 if (port_a)
5520 val |= 0xc010000;
5521 else
5522 val |= 0x4010000;
5523 tw32_f(MAC_SERDES_CFG, val);
5524 }
5525
5526 tw32_f(SG_DIG_CTRL, SG_DIG_COMMON_SETUP);
5527 }
5528 if (mac_status & MAC_STATUS_PCS_SYNCED) {
5529 tg3_setup_flow_control(tp, lcladv: 0, rmtadv: 0);
5530 current_link_up = true;
5531 }
5532 goto out;
5533 }
5534
5535 /* Want auto-negotiation. */
5536 expected_sg_dig_ctrl = SG_DIG_USING_HW_AUTONEG | SG_DIG_COMMON_SETUP;
5537
5538 flowctrl = tg3_advert_flowctrl_1000X(flow_ctrl: tp->link_config.flowctrl);
5539 if (flowctrl & ADVERTISE_1000XPAUSE)
5540 expected_sg_dig_ctrl |= SG_DIG_PAUSE_CAP;
5541 if (flowctrl & ADVERTISE_1000XPSE_ASYM)
5542 expected_sg_dig_ctrl |= SG_DIG_ASYM_PAUSE;
5543
5544 if (sg_dig_ctrl != expected_sg_dig_ctrl) {
5545 if ((tp->phy_flags & TG3_PHYFLG_PARALLEL_DETECT) &&
5546 tp->serdes_counter &&
5547 ((mac_status & (MAC_STATUS_PCS_SYNCED |
5548 MAC_STATUS_RCVD_CFG)) ==
5549 MAC_STATUS_PCS_SYNCED)) {
5550 tp->serdes_counter--;
5551 current_link_up = true;
5552 goto out;
5553 }
5554restart_autoneg:
5555 if (workaround)
5556 tw32_f(MAC_SERDES_CFG, serdes_cfg | 0xc011000);
5557 tw32_f(SG_DIG_CTRL, expected_sg_dig_ctrl | SG_DIG_SOFT_RESET);
5558 udelay(usec: 5);
5559 tw32_f(SG_DIG_CTRL, expected_sg_dig_ctrl);
5560
5561 tp->serdes_counter = SERDES_AN_TIMEOUT_5704S;
5562 tp->phy_flags &= ~TG3_PHYFLG_PARALLEL_DETECT;
5563 } else if (mac_status & (MAC_STATUS_PCS_SYNCED |
5564 MAC_STATUS_SIGNAL_DET)) {
5565 sg_dig_status = tr32(SG_DIG_STATUS);
5566 mac_status = tr32(MAC_STATUS);
5567
5568 if ((sg_dig_status & SG_DIG_AUTONEG_COMPLETE) &&
5569 (mac_status & MAC_STATUS_PCS_SYNCED)) {
5570 u32 local_adv = 0, remote_adv = 0;
5571
5572 if (sg_dig_ctrl & SG_DIG_PAUSE_CAP)
5573 local_adv |= ADVERTISE_1000XPAUSE;
5574 if (sg_dig_ctrl & SG_DIG_ASYM_PAUSE)
5575 local_adv |= ADVERTISE_1000XPSE_ASYM;
5576
5577 if (sg_dig_status & SG_DIG_PARTNER_PAUSE_CAPABLE)
5578 remote_adv |= LPA_1000XPAUSE;
5579 if (sg_dig_status & SG_DIG_PARTNER_ASYM_PAUSE)
5580 remote_adv |= LPA_1000XPAUSE_ASYM;
5581
5582 tp->link_config.rmt_adv =
5583 mii_adv_to_ethtool_adv_x(adv: remote_adv);
5584
5585 tg3_setup_flow_control(tp, lcladv: local_adv, rmtadv: remote_adv);
5586 current_link_up = true;
5587 tp->serdes_counter = 0;
5588 tp->phy_flags &= ~TG3_PHYFLG_PARALLEL_DETECT;
5589 } else if (!(sg_dig_status & SG_DIG_AUTONEG_COMPLETE)) {
5590 if (tp->serdes_counter)
5591 tp->serdes_counter--;
5592 else {
5593 if (workaround) {
5594 u32 val = serdes_cfg;
5595
5596 if (port_a)
5597 val |= 0xc010000;
5598 else
5599 val |= 0x4010000;
5600
5601 tw32_f(MAC_SERDES_CFG, val);
5602 }
5603
5604 tw32_f(SG_DIG_CTRL, SG_DIG_COMMON_SETUP);
5605 udelay(usec: 40);
5606
5607 /* Link parallel detection - link is up */
5608 /* only if we have PCS_SYNC and not */
5609 /* receiving config code words */
5610 mac_status = tr32(MAC_STATUS);
5611 if ((mac_status & MAC_STATUS_PCS_SYNCED) &&
5612 !(mac_status & MAC_STATUS_RCVD_CFG)) {
5613 tg3_setup_flow_control(tp, lcladv: 0, rmtadv: 0);
5614 current_link_up = true;
5615 tp->phy_flags |=
5616 TG3_PHYFLG_PARALLEL_DETECT;
5617 tp->serdes_counter =
5618 SERDES_PARALLEL_DET_TIMEOUT;
5619 } else
5620 goto restart_autoneg;
5621 }
5622 }
5623 } else {
5624 tp->serdes_counter = SERDES_AN_TIMEOUT_5704S;
5625 tp->phy_flags &= ~TG3_PHYFLG_PARALLEL_DETECT;
5626 }
5627
5628out:
5629 return current_link_up;
5630}
5631
5632static bool tg3_setup_fiber_by_hand(struct tg3 *tp, u32 mac_status)
5633{
5634 bool current_link_up = false;
5635
5636 if (!(mac_status & MAC_STATUS_PCS_SYNCED))
5637 goto out;
5638
5639 if (tp->link_config.autoneg == AUTONEG_ENABLE) {
5640 u32 txflags, rxflags;
5641 int i;
5642
5643 if (fiber_autoneg(tp, txflags: &txflags, rxflags: &rxflags)) {
5644 u32 local_adv = 0, remote_adv = 0;
5645
5646 if (txflags & ANEG_CFG_PS1)
5647 local_adv |= ADVERTISE_1000XPAUSE;
5648 if (txflags & ANEG_CFG_PS2)
5649 local_adv |= ADVERTISE_1000XPSE_ASYM;
5650
5651 if (rxflags & MR_LP_ADV_SYM_PAUSE)
5652 remote_adv |= LPA_1000XPAUSE;
5653 if (rxflags & MR_LP_ADV_ASYM_PAUSE)
5654 remote_adv |= LPA_1000XPAUSE_ASYM;
5655
5656 tp->link_config.rmt_adv =
5657 mii_adv_to_ethtool_adv_x(adv: remote_adv);
5658
5659 tg3_setup_flow_control(tp, lcladv: local_adv, rmtadv: remote_adv);
5660
5661 current_link_up = true;
5662 }
5663 for (i = 0; i < 30; i++) {
5664 udelay(usec: 20);
5665 tw32_f(MAC_STATUS,
5666 (MAC_STATUS_SYNC_CHANGED |
5667 MAC_STATUS_CFG_CHANGED));
5668 udelay(usec: 40);
5669 if ((tr32(MAC_STATUS) &
5670 (MAC_STATUS_SYNC_CHANGED |
5671 MAC_STATUS_CFG_CHANGED)) == 0)
5672 break;
5673 }
5674
5675 mac_status = tr32(MAC_STATUS);
5676 if (!current_link_up &&
5677 (mac_status & MAC_STATUS_PCS_SYNCED) &&
5678 !(mac_status & MAC_STATUS_RCVD_CFG))
5679 current_link_up = true;
5680 } else {
5681 tg3_setup_flow_control(tp, lcladv: 0, rmtadv: 0);
5682
5683 /* Forcing 1000FD link up. */
5684 current_link_up = true;
5685
5686 tw32_f(MAC_MODE, (tp->mac_mode | MAC_MODE_SEND_CONFIGS));
5687 udelay(usec: 40);
5688
5689 tw32_f(MAC_MODE, tp->mac_mode);
5690 udelay(usec: 40);
5691 }
5692
5693out:
5694 return current_link_up;
5695}
5696
5697static int tg3_setup_fiber_phy(struct tg3 *tp, bool force_reset)
5698{
5699 u32 orig_pause_cfg;
5700 u32 orig_active_speed;
5701 u8 orig_active_duplex;
5702 u32 mac_status;
5703 bool current_link_up;
5704 int i;
5705
5706 orig_pause_cfg = tp->link_config.active_flowctrl;
5707 orig_active_speed = tp->link_config.active_speed;
5708 orig_active_duplex = tp->link_config.active_duplex;
5709
5710 if (!tg3_flag(tp, HW_AUTONEG) &&
5711 tp->link_up &&
5712 tg3_flag(tp, INIT_COMPLETE)) {
5713 mac_status = tr32(MAC_STATUS);
5714 mac_status &= (MAC_STATUS_PCS_SYNCED |
5715 MAC_STATUS_SIGNAL_DET |
5716 MAC_STATUS_CFG_CHANGED |
5717 MAC_STATUS_RCVD_CFG);
5718 if (mac_status == (MAC_STATUS_PCS_SYNCED |
5719 MAC_STATUS_SIGNAL_DET)) {
5720 tw32_f(MAC_STATUS, (MAC_STATUS_SYNC_CHANGED |
5721 MAC_STATUS_CFG_CHANGED));
5722 return 0;
5723 }
5724 }
5725
5726 tw32_f(MAC_TX_AUTO_NEG, 0);
5727
5728 tp->mac_mode &= ~(MAC_MODE_PORT_MODE_MASK | MAC_MODE_HALF_DUPLEX);
5729 tp->mac_mode |= MAC_MODE_PORT_MODE_TBI;
5730 tw32_f(MAC_MODE, tp->mac_mode);
5731 udelay(usec: 40);
5732
5733 if (tp->phy_id == TG3_PHY_ID_BCM8002)
5734 tg3_init_bcm8002(tp);
5735
5736 /* Enable link change event even when serdes polling. */
5737 tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
5738 udelay(usec: 40);
5739
5740 tp->link_config.rmt_adv = 0;
5741 mac_status = tr32(MAC_STATUS);
5742
5743 if (tg3_flag(tp, HW_AUTONEG))
5744 current_link_up = tg3_setup_fiber_hw_autoneg(tp, mac_status);
5745 else
5746 current_link_up = tg3_setup_fiber_by_hand(tp, mac_status);
5747
5748 tp->napi[0].hw_status->status =
5749 (SD_STATUS_UPDATED |
5750 (tp->napi[0].hw_status->status & ~SD_STATUS_LINK_CHG));
5751
5752 for (i = 0; i < 100; i++) {
5753 tw32_f(MAC_STATUS, (MAC_STATUS_SYNC_CHANGED |
5754 MAC_STATUS_CFG_CHANGED));
5755 udelay(usec: 5);
5756 if ((tr32(MAC_STATUS) & (MAC_STATUS_SYNC_CHANGED |
5757 MAC_STATUS_CFG_CHANGED |
5758 MAC_STATUS_LNKSTATE_CHANGED)) == 0)
5759 break;
5760 }
5761
5762 mac_status = tr32(MAC_STATUS);
5763 if ((mac_status & MAC_STATUS_PCS_SYNCED) == 0) {
5764 current_link_up = false;
5765 if (tp->link_config.autoneg == AUTONEG_ENABLE &&
5766 tp->serdes_counter == 0) {
5767 tw32_f(MAC_MODE, (tp->mac_mode |
5768 MAC_MODE_SEND_CONFIGS));
5769 udelay(usec: 1);
5770 tw32_f(MAC_MODE, tp->mac_mode);
5771 }
5772 }
5773
5774 if (current_link_up) {
5775 tp->link_config.active_speed = SPEED_1000;
5776 tp->link_config.active_duplex = DUPLEX_FULL;
5777 tw32(MAC_LED_CTRL, (tp->led_ctrl |
5778 LED_CTRL_LNKLED_OVERRIDE |
5779 LED_CTRL_1000MBPS_ON));
5780 } else {
5781 tp->link_config.active_speed = SPEED_UNKNOWN;
5782 tp->link_config.active_duplex = DUPLEX_UNKNOWN;
5783 tw32(MAC_LED_CTRL, (tp->led_ctrl |
5784 LED_CTRL_LNKLED_OVERRIDE |
5785 LED_CTRL_TRAFFIC_OVERRIDE));
5786 }
5787
5788 if (!tg3_test_and_report_link_chg(tp, curr_link_up: current_link_up)) {
5789 u32 now_pause_cfg = tp->link_config.active_flowctrl;
5790 if (orig_pause_cfg != now_pause_cfg ||
5791 orig_active_speed != tp->link_config.active_speed ||
5792 orig_active_duplex != tp->link_config.active_duplex)
5793 tg3_link_report(tp);
5794 }
5795
5796 return 0;
5797}
5798
5799static int tg3_setup_fiber_mii_phy(struct tg3 *tp, bool force_reset)
5800{
5801 int err = 0;
5802 u32 bmsr, bmcr;
5803 u32 current_speed = SPEED_UNKNOWN;
5804 u8 current_duplex = DUPLEX_UNKNOWN;
5805 bool current_link_up = false;
5806 u32 local_adv, remote_adv, sgsr;
5807
5808 if ((tg3_asic_rev(tp) == ASIC_REV_5719 ||
5809 tg3_asic_rev(tp) == ASIC_REV_5720) &&
5810 !tg3_readphy(tp, SERDES_TG3_1000X_STATUS, val: &sgsr) &&
5811 (sgsr & SERDES_TG3_SGMII_MODE)) {
5812
5813 if (force_reset)
5814 tg3_phy_reset(tp);
5815
5816 tp->mac_mode &= ~MAC_MODE_PORT_MODE_MASK;
5817
5818 if (!(sgsr & SERDES_TG3_LINK_UP)) {
5819 tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
5820 } else {
5821 current_link_up = true;
5822 if (sgsr & SERDES_TG3_SPEED_1000) {
5823 current_speed = SPEED_1000;
5824 tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
5825 } else if (sgsr & SERDES_TG3_SPEED_100) {
5826 current_speed = SPEED_100;
5827 tp->mac_mode |= MAC_MODE_PORT_MODE_MII;
5828 } else {
5829 current_speed = SPEED_10;
5830 tp->mac_mode |= MAC_MODE_PORT_MODE_MII;
5831 }
5832
5833 if (sgsr & SERDES_TG3_FULL_DUPLEX)
5834 current_duplex = DUPLEX_FULL;
5835 else
5836 current_duplex = DUPLEX_HALF;
5837 }
5838
5839 tw32_f(MAC_MODE, tp->mac_mode);
5840 udelay(usec: 40);
5841
5842 tg3_clear_mac_status(tp);
5843
5844 goto fiber_setup_done;
5845 }
5846
5847 tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
5848 tw32_f(MAC_MODE, tp->mac_mode);
5849 udelay(usec: 40);
5850
5851 tg3_clear_mac_status(tp);
5852
5853 if (force_reset)
5854 tg3_phy_reset(tp);
5855
5856 tp->link_config.rmt_adv = 0;
5857
5858 err |= tg3_readphy(tp, MII_BMSR, val: &bmsr);
5859 err |= tg3_readphy(tp, MII_BMSR, val: &bmsr);
5860 if (tg3_asic_rev(tp) == ASIC_REV_5714) {
5861 if (tr32(MAC_TX_STATUS) & TX_STATUS_LINK_UP)
5862 bmsr |= BMSR_LSTATUS;
5863 else
5864 bmsr &= ~BMSR_LSTATUS;
5865 }
5866
5867 err |= tg3_readphy(tp, MII_BMCR, val: &bmcr);
5868
5869 if ((tp->link_config.autoneg == AUTONEG_ENABLE) && !force_reset &&
5870 (tp->phy_flags & TG3_PHYFLG_PARALLEL_DETECT)) {
5871 /* do nothing, just check for link up at the end */
5872 } else if (tp->link_config.autoneg == AUTONEG_ENABLE) {
5873 u32 adv, newadv;
5874
5875 err |= tg3_readphy(tp, MII_ADVERTISE, val: &adv);
5876 newadv = adv & ~(ADVERTISE_1000XFULL | ADVERTISE_1000XHALF |
5877 ADVERTISE_1000XPAUSE |
5878 ADVERTISE_1000XPSE_ASYM |
5879 ADVERTISE_SLCT);
5880
5881 newadv |= tg3_advert_flowctrl_1000X(flow_ctrl: tp->link_config.flowctrl);
5882 newadv |= ethtool_adv_to_mii_adv_x(ethadv: tp->link_config.advertising);
5883
5884 if ((newadv != adv) || !(bmcr & BMCR_ANENABLE)) {
5885 tg3_writephy(tp, MII_ADVERTISE, val: newadv);
5886 bmcr |= BMCR_ANENABLE | BMCR_ANRESTART;
5887 tg3_writephy(tp, MII_BMCR, val: bmcr);
5888
5889 tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
5890 tp->serdes_counter = SERDES_AN_TIMEOUT_5714S;
5891 tp->phy_flags &= ~TG3_PHYFLG_PARALLEL_DETECT;
5892
5893 return err;
5894 }
5895 } else {
5896 u32 new_bmcr;
5897
5898 bmcr &= ~BMCR_SPEED1000;
5899 new_bmcr = bmcr & ~(BMCR_ANENABLE | BMCR_FULLDPLX);
5900
5901 if (tp->link_config.duplex == DUPLEX_FULL)
5902 new_bmcr |= BMCR_FULLDPLX;
5903
5904 if (new_bmcr != bmcr) {
5905 /* BMCR_SPEED1000 is a reserved bit that needs
5906 * to be set on write.
5907 */
5908 new_bmcr |= BMCR_SPEED1000;
5909
5910 /* Force a linkdown */
5911 if (tp->link_up) {
5912 u32 adv;
5913
5914 err |= tg3_readphy(tp, MII_ADVERTISE, val: &adv);
5915 adv &= ~(ADVERTISE_1000XFULL |
5916 ADVERTISE_1000XHALF |
5917 ADVERTISE_SLCT);
5918 tg3_writephy(tp, MII_ADVERTISE, val: adv);
5919 tg3_writephy(tp, MII_BMCR, val: bmcr |
5920 BMCR_ANRESTART |
5921 BMCR_ANENABLE);
5922 udelay(usec: 10);
5923 tg3_carrier_off(tp);
5924 }
5925 tg3_writephy(tp, MII_BMCR, val: new_bmcr);
5926 bmcr = new_bmcr;
5927 err |= tg3_readphy(tp, MII_BMSR, val: &bmsr);
5928 err |= tg3_readphy(tp, MII_BMSR, val: &bmsr);
5929 if (tg3_asic_rev(tp) == ASIC_REV_5714) {
5930 if (tr32(MAC_TX_STATUS) & TX_STATUS_LINK_UP)
5931 bmsr |= BMSR_LSTATUS;
5932 else
5933 bmsr &= ~BMSR_LSTATUS;
5934 }
5935 tp->phy_flags &= ~TG3_PHYFLG_PARALLEL_DETECT;
5936 }
5937 }
5938
5939 if (bmsr & BMSR_LSTATUS) {
5940 current_speed = SPEED_1000;
5941 current_link_up = true;
5942 if (bmcr & BMCR_FULLDPLX)
5943 current_duplex = DUPLEX_FULL;
5944 else
5945 current_duplex = DUPLEX_HALF;
5946
5947 local_adv = 0;
5948 remote_adv = 0;
5949
5950 if (bmcr & BMCR_ANENABLE) {
5951 u32 common;
5952
5953 err |= tg3_readphy(tp, MII_ADVERTISE, val: &local_adv);
5954 err |= tg3_readphy(tp, MII_LPA, val: &remote_adv);
5955 common = local_adv & remote_adv;
5956 if (common & (ADVERTISE_1000XHALF |
5957 ADVERTISE_1000XFULL)) {
5958 if (common & ADVERTISE_1000XFULL)
5959 current_duplex = DUPLEX_FULL;
5960 else
5961 current_duplex = DUPLEX_HALF;
5962
5963 tp->link_config.rmt_adv =
5964 mii_adv_to_ethtool_adv_x(adv: remote_adv);
5965 } else if (!tg3_flag(tp, 5780_CLASS)) {
5966 /* Link is up via parallel detect */
5967 } else {
5968 current_link_up = false;
5969 }
5970 }
5971 }
5972
5973fiber_setup_done:
5974 if (current_link_up && current_duplex == DUPLEX_FULL)
5975 tg3_setup_flow_control(tp, lcladv: local_adv, rmtadv: remote_adv);
5976
5977 tp->mac_mode &= ~MAC_MODE_HALF_DUPLEX;
5978 if (tp->link_config.active_duplex == DUPLEX_HALF)
5979 tp->mac_mode |= MAC_MODE_HALF_DUPLEX;
5980
5981 tw32_f(MAC_MODE, tp->mac_mode);
5982 udelay(usec: 40);
5983
5984 tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
5985
5986 tp->link_config.active_speed = current_speed;
5987 tp->link_config.active_duplex = current_duplex;
5988
5989 tg3_test_and_report_link_chg(tp, curr_link_up: current_link_up);
5990 return err;
5991}
5992
5993static void tg3_serdes_parallel_detect(struct tg3 *tp)
5994{
5995 if (tp->serdes_counter) {
5996 /* Give autoneg time to complete. */
5997 tp->serdes_counter--;
5998 return;
5999 }
6000
6001 if (!tp->link_up &&
6002 (tp->link_config.autoneg == AUTONEG_ENABLE)) {
6003 u32 bmcr;
6004
6005 tg3_readphy(tp, MII_BMCR, val: &bmcr);
6006 if (bmcr & BMCR_ANENABLE) {
6007 u32 phy1, phy2;
6008
6009 /* Select shadow register 0x1f */
6010 tg3_writephy(tp, MII_TG3_MISC_SHDW, val: 0x7c00);
6011 tg3_readphy(tp, MII_TG3_MISC_SHDW, val: &phy1);
6012
6013 /* Select expansion interrupt status register */
6014 tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
6015 MII_TG3_DSP_EXP1_INT_STAT);
6016 tg3_readphy(tp, MII_TG3_DSP_RW_PORT, val: &phy2);
6017 tg3_readphy(tp, MII_TG3_DSP_RW_PORT, val: &phy2);
6018
6019 if ((phy1 & 0x10) && !(phy2 & 0x20)) {
6020 /* We have signal detect and not receiving
6021 * config code words, link is up by parallel
6022 * detection.
6023 */
6024
6025 bmcr &= ~BMCR_ANENABLE;
6026 bmcr |= BMCR_SPEED1000 | BMCR_FULLDPLX;
6027 tg3_writephy(tp, MII_BMCR, val: bmcr);
6028 tp->phy_flags |= TG3_PHYFLG_PARALLEL_DETECT;
6029 }
6030 }
6031 } else if (tp->link_up &&
6032 (tp->link_config.autoneg == AUTONEG_ENABLE) &&
6033 (tp->phy_flags & TG3_PHYFLG_PARALLEL_DETECT)) {
6034 u32 phy2;
6035
6036 /* Select expansion interrupt status register */
6037 tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
6038 MII_TG3_DSP_EXP1_INT_STAT);
6039 tg3_readphy(tp, MII_TG3_DSP_RW_PORT, val: &phy2);
6040 if (phy2 & 0x20) {
6041 u32 bmcr;
6042
6043 /* Config code words received, turn on autoneg. */
6044 tg3_readphy(tp, MII_BMCR, val: &bmcr);
6045 tg3_writephy(tp, MII_BMCR, val: bmcr | BMCR_ANENABLE);
6046
6047 tp->phy_flags &= ~TG3_PHYFLG_PARALLEL_DETECT;
6048
6049 }
6050 }
6051}
6052
6053static int tg3_setup_phy(struct tg3 *tp, bool force_reset)
6054{
6055 u32 val;
6056 int err;
6057
6058 if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES)
6059 err = tg3_setup_fiber_phy(tp, force_reset);
6060 else if (tp->phy_flags & TG3_PHYFLG_MII_SERDES)
6061 err = tg3_setup_fiber_mii_phy(tp, force_reset);
6062 else
6063 err = tg3_setup_copper_phy(tp, force_reset);
6064
6065 if (tg3_chip_rev(tp) == CHIPREV_5784_AX) {
6066 u32 scale;
6067
6068 val = tr32(TG3_CPMU_CLCK_STAT) & CPMU_CLCK_STAT_MAC_CLCK_MASK;
6069 if (val == CPMU_CLCK_STAT_MAC_CLCK_62_5)
6070 scale = 65;
6071 else if (val == CPMU_CLCK_STAT_MAC_CLCK_6_25)
6072 scale = 6;
6073 else
6074 scale = 12;
6075
6076 val = tr32(GRC_MISC_CFG) & ~GRC_MISC_CFG_PRESCALAR_MASK;
6077 val |= (scale << GRC_MISC_CFG_PRESCALAR_SHIFT);
6078 tw32(GRC_MISC_CFG, val);
6079 }
6080
6081 val = (2 << TX_LENGTHS_IPG_CRS_SHIFT) |
6082 (6 << TX_LENGTHS_IPG_SHIFT);
6083 if (tg3_asic_rev(tp) == ASIC_REV_5720 ||
6084 tg3_asic_rev(tp) == ASIC_REV_5762)
6085 val |= tr32(MAC_TX_LENGTHS) &
6086 (TX_LENGTHS_JMB_FRM_LEN_MSK |
6087 TX_LENGTHS_CNT_DWN_VAL_MSK);
6088
6089 if (tp->link_config.active_speed == SPEED_1000 &&
6090 tp->link_config.active_duplex == DUPLEX_HALF)
6091 tw32(MAC_TX_LENGTHS, val |
6092 (0xff << TX_LENGTHS_SLOT_TIME_SHIFT));
6093 else
6094 tw32(MAC_TX_LENGTHS, val |
6095 (32 << TX_LENGTHS_SLOT_TIME_SHIFT));
6096
6097 if (!tg3_flag(tp, 5705_PLUS)) {
6098 if (tp->link_up) {
6099 tw32(HOSTCC_STAT_COAL_TICKS,
6100 tp->coal.stats_block_coalesce_usecs);
6101 } else {
6102 tw32(HOSTCC_STAT_COAL_TICKS, 0);
6103 }
6104 }
6105
6106 if (tg3_flag(tp, ASPM_WORKAROUND)) {
6107 val = tr32(PCIE_PWR_MGMT_THRESH);
6108 if (!tp->link_up)
6109 val = (val & ~PCIE_PWR_MGMT_L1_THRESH_MSK) |
6110 tp->pwrmgmt_thresh;
6111 else
6112 val |= PCIE_PWR_MGMT_L1_THRESH_MSK;
6113 tw32(PCIE_PWR_MGMT_THRESH, val);
6114 }
6115
6116 return err;
6117}
6118
6119/* tp->lock must be held */
6120static u64 tg3_refclk_read(struct tg3 *tp, struct ptp_system_timestamp *sts)
6121{
6122 u64 stamp;
6123
6124 ptp_read_system_prets(sts);
6125 stamp = tr32(TG3_EAV_REF_CLCK_LSB);
6126 ptp_read_system_postts(sts);
6127 stamp |= (u64)tr32(TG3_EAV_REF_CLCK_MSB) << 32;
6128
6129 return stamp;
6130}
6131
6132/* tp->lock must be held */
6133static void tg3_refclk_write(struct tg3 *tp, u64 newval)
6134{
6135 u32 clock_ctl = tr32(TG3_EAV_REF_CLCK_CTL);
6136
6137 tw32(TG3_EAV_REF_CLCK_CTL, clock_ctl | TG3_EAV_REF_CLCK_CTL_STOP);
6138 tw32(TG3_EAV_REF_CLCK_LSB, newval & 0xffffffff);
6139 tw32(TG3_EAV_REF_CLCK_MSB, newval >> 32);
6140 tw32_f(TG3_EAV_REF_CLCK_CTL, clock_ctl | TG3_EAV_REF_CLCK_CTL_RESUME);
6141}
6142
6143static inline void tg3_full_lock(struct tg3 *tp, int irq_sync);
6144static inline void tg3_full_unlock(struct tg3 *tp);
6145static int tg3_get_ts_info(struct net_device *dev, struct kernel_ethtool_ts_info *info)
6146{
6147 struct tg3 *tp = netdev_priv(dev);
6148
6149 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE;
6150
6151 if (tg3_flag(tp, PTP_CAPABLE)) {
6152 info->so_timestamping |= SOF_TIMESTAMPING_TX_HARDWARE |
6153 SOF_TIMESTAMPING_RX_HARDWARE |
6154 SOF_TIMESTAMPING_RAW_HARDWARE;
6155 }
6156
6157 if (tp->ptp_clock)
6158 info->phc_index = ptp_clock_index(ptp: tp->ptp_clock);
6159
6160 info->tx_types = (1 << HWTSTAMP_TX_OFF) | (1 << HWTSTAMP_TX_ON);
6161
6162 info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
6163 (1 << HWTSTAMP_FILTER_PTP_V1_L4_EVENT) |
6164 (1 << HWTSTAMP_FILTER_PTP_V2_L2_EVENT) |
6165 (1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT);
6166 return 0;
6167}
6168
6169static int tg3_ptp_adjfine(struct ptp_clock_info *ptp, long scaled_ppm)
6170{
6171 struct tg3 *tp = container_of(ptp, struct tg3, ptp_info);
6172 u64 correction;
6173 bool neg_adj;
6174
6175 /* Frequency adjustment is performed using hardware with a 24 bit
6176 * accumulator and a programmable correction value. On each clk, the
6177 * correction value gets added to the accumulator and when it
6178 * overflows, the time counter is incremented/decremented.
6179 */
6180 neg_adj = diff_by_scaled_ppm(base: 1 << 24, scaled_ppm, diff: &correction);
6181
6182 tg3_full_lock(tp, irq_sync: 0);
6183
6184 if (correction)
6185 tw32(TG3_EAV_REF_CLK_CORRECT_CTL,
6186 TG3_EAV_REF_CLK_CORRECT_EN |
6187 (neg_adj ? TG3_EAV_REF_CLK_CORRECT_NEG : 0) |
6188 ((u32)correction & TG3_EAV_REF_CLK_CORRECT_MASK));
6189 else
6190 tw32(TG3_EAV_REF_CLK_CORRECT_CTL, 0);
6191
6192 tg3_full_unlock(tp);
6193
6194 return 0;
6195}
6196
6197static int tg3_ptp_adjtime(struct ptp_clock_info *ptp, s64 delta)
6198{
6199 struct tg3 *tp = container_of(ptp, struct tg3, ptp_info);
6200
6201 tg3_full_lock(tp, irq_sync: 0);
6202 tp->ptp_adjust += delta;
6203 tg3_full_unlock(tp);
6204
6205 return 0;
6206}
6207
6208static int tg3_ptp_gettimex(struct ptp_clock_info *ptp, struct timespec64 *ts,
6209 struct ptp_system_timestamp *sts)
6210{
6211 u64 ns;
6212 struct tg3 *tp = container_of(ptp, struct tg3, ptp_info);
6213
6214 tg3_full_lock(tp, irq_sync: 0);
6215 ns = tg3_refclk_read(tp, sts);
6216 ns += tp->ptp_adjust;
6217 tg3_full_unlock(tp);
6218
6219 *ts = ns_to_timespec64(nsec: ns);
6220
6221 return 0;
6222}
6223
6224static int tg3_ptp_settime(struct ptp_clock_info *ptp,
6225 const struct timespec64 *ts)
6226{
6227 u64 ns;
6228 struct tg3 *tp = container_of(ptp, struct tg3, ptp_info);
6229
6230 ns = timespec64_to_ns(ts);
6231
6232 tg3_full_lock(tp, irq_sync: 0);
6233 tg3_refclk_write(tp, newval: ns);
6234 tp->ptp_adjust = 0;
6235 tg3_full_unlock(tp);
6236
6237 return 0;
6238}
6239
6240static int tg3_ptp_enable(struct ptp_clock_info *ptp,
6241 struct ptp_clock_request *rq, int on)
6242{
6243 struct tg3 *tp = container_of(ptp, struct tg3, ptp_info);
6244 u32 clock_ctl;
6245 int rval = 0;
6246
6247 switch (rq->type) {
6248 case PTP_CLK_REQ_PEROUT:
6249 /* Reject requests with unsupported flags */
6250 if (rq->perout.flags)
6251 return -EOPNOTSUPP;
6252
6253 if (rq->perout.index != 0)
6254 return -EINVAL;
6255
6256 tg3_full_lock(tp, irq_sync: 0);
6257 clock_ctl = tr32(TG3_EAV_REF_CLCK_CTL);
6258 clock_ctl &= ~TG3_EAV_CTL_TSYNC_GPIO_MASK;
6259
6260 if (on) {
6261 u64 nsec;
6262
6263 nsec = rq->perout.start.sec * 1000000000ULL +
6264 rq->perout.start.nsec;
6265
6266 if (rq->perout.period.sec || rq->perout.period.nsec) {
6267 netdev_warn(dev: tp->dev,
6268 format: "Device supports only a one-shot timesync output, period must be 0\n");
6269 rval = -EINVAL;
6270 goto err_out;
6271 }
6272
6273 if (nsec & (1ULL << 63)) {
6274 netdev_warn(dev: tp->dev,
6275 format: "Start value (nsec) is over limit. Maximum size of start is only 63 bits\n");
6276 rval = -EINVAL;
6277 goto err_out;
6278 }
6279
6280 tw32(TG3_EAV_WATCHDOG0_LSB, (nsec & 0xffffffff));
6281 tw32(TG3_EAV_WATCHDOG0_MSB,
6282 TG3_EAV_WATCHDOG0_EN |
6283 ((nsec >> 32) & TG3_EAV_WATCHDOG_MSB_MASK));
6284
6285 tw32(TG3_EAV_REF_CLCK_CTL,
6286 clock_ctl | TG3_EAV_CTL_TSYNC_WDOG0);
6287 } else {
6288 tw32(TG3_EAV_WATCHDOG0_MSB, 0);
6289 tw32(TG3_EAV_REF_CLCK_CTL, clock_ctl);
6290 }
6291
6292err_out:
6293 tg3_full_unlock(tp);
6294 return rval;
6295
6296 default:
6297 break;
6298 }
6299
6300 return -EOPNOTSUPP;
6301}
6302
6303static void tg3_hwclock_to_timestamp(struct tg3 *tp, u64 hwclock,
6304 struct skb_shared_hwtstamps *timestamp)
6305{
6306 memset(s: timestamp, c: 0, n: sizeof(struct skb_shared_hwtstamps));
6307 timestamp->hwtstamp = ns_to_ktime(ns: (hwclock & TG3_TSTAMP_MASK) +
6308 tp->ptp_adjust);
6309}
6310
6311static void tg3_read_tx_tstamp(struct tg3 *tp, u64 *hwclock)
6312{
6313 *hwclock = tr32(TG3_TX_TSTAMP_LSB);
6314 *hwclock |= (u64)tr32(TG3_TX_TSTAMP_MSB) << 32;
6315}
6316
6317static long tg3_ptp_ts_aux_work(struct ptp_clock_info *ptp)
6318{
6319 struct tg3 *tp = container_of(ptp, struct tg3, ptp_info);
6320 struct skb_shared_hwtstamps timestamp;
6321 u64 hwclock;
6322
6323 if (tp->ptp_txts_retrycnt > 2)
6324 goto done;
6325
6326 tg3_read_tx_tstamp(tp, hwclock: &hwclock);
6327
6328 if (hwclock != tp->pre_tx_ts) {
6329 tg3_hwclock_to_timestamp(tp, hwclock, timestamp: &timestamp);
6330 skb_tstamp_tx(orig_skb: tp->tx_tstamp_skb, hwtstamps: &timestamp);
6331 goto done;
6332 }
6333 tp->ptp_txts_retrycnt++;
6334 return HZ / 10;
6335done:
6336 dev_consume_skb_any(skb: tp->tx_tstamp_skb);
6337 tp->tx_tstamp_skb = NULL;
6338 tp->ptp_txts_retrycnt = 0;
6339 tp->pre_tx_ts = 0;
6340 return -1;
6341}
6342
6343static const struct ptp_clock_info tg3_ptp_caps = {
6344 .owner = THIS_MODULE,
6345 .name = "tg3 clock",
6346 .max_adj = 250000000,
6347 .n_alarm = 0,
6348 .n_ext_ts = 0,
6349 .n_per_out = 1,
6350 .n_pins = 0,
6351 .pps = 0,
6352 .adjfine = tg3_ptp_adjfine,
6353 .adjtime = tg3_ptp_adjtime,
6354 .do_aux_work = tg3_ptp_ts_aux_work,
6355 .gettimex64 = tg3_ptp_gettimex,
6356 .settime64 = tg3_ptp_settime,
6357 .enable = tg3_ptp_enable,
6358};
6359
6360/* tp->lock must be held */
6361static void tg3_ptp_init(struct tg3 *tp)
6362{
6363 if (!tg3_flag(tp, PTP_CAPABLE))
6364 return;
6365
6366 /* Initialize the hardware clock to the system time. */
6367 tg3_refclk_write(tp, newval: ktime_to_ns(kt: ktime_get_real()));
6368 tp->ptp_adjust = 0;
6369 tp->ptp_info = tg3_ptp_caps;
6370}
6371
6372/* tp->lock must be held */
6373static void tg3_ptp_resume(struct tg3 *tp)
6374{
6375 if (!tg3_flag(tp, PTP_CAPABLE))
6376 return;
6377
6378 tg3_refclk_write(tp, newval: ktime_to_ns(kt: ktime_get_real()) + tp->ptp_adjust);
6379 tp->ptp_adjust = 0;
6380}
6381
6382static void tg3_ptp_fini(struct tg3 *tp)
6383{
6384 if (!tg3_flag(tp, PTP_CAPABLE) || !tp->ptp_clock)
6385 return;
6386
6387 ptp_clock_unregister(ptp: tp->ptp_clock);
6388 tp->ptp_clock = NULL;
6389 tp->ptp_adjust = 0;
6390 dev_consume_skb_any(skb: tp->tx_tstamp_skb);
6391 tp->tx_tstamp_skb = NULL;
6392}
6393
6394static inline int tg3_irq_sync(struct tg3 *tp)
6395{
6396 return tp->irq_sync;
6397}
6398
6399static inline void tg3_rd32_loop(struct tg3 *tp, u32 *dst, u32 off, u32 len)
6400{
6401 int i;
6402
6403 dst = (u32 *)((u8 *)dst + off);
6404 for (i = 0; i < len; i += sizeof(u32))
6405 *dst++ = tr32(off + i);
6406}
6407
6408static void tg3_dump_legacy_regs(struct tg3 *tp, u32 *regs)
6409{
6410 tg3_rd32_loop(tp, dst: regs, TG3PCI_VENDOR, len: 0xb0);
6411 tg3_rd32_loop(tp, dst: regs, MAILBOX_INTERRUPT_0, len: 0x200);
6412 tg3_rd32_loop(tp, dst: regs, MAC_MODE, len: 0x4f0);
6413 tg3_rd32_loop(tp, dst: regs, SNDDATAI_MODE, len: 0xe0);
6414 tg3_rd32_loop(tp, dst: regs, SNDDATAC_MODE, len: 0x04);
6415 tg3_rd32_loop(tp, dst: regs, SNDBDS_MODE, len: 0x80);
6416 tg3_rd32_loop(tp, dst: regs, SNDBDI_MODE, len: 0x48);
6417 tg3_rd32_loop(tp, dst: regs, SNDBDC_MODE, len: 0x04);
6418 tg3_rd32_loop(tp, dst: regs, RCVLPC_MODE, len: 0x20);
6419 tg3_rd32_loop(tp, dst: regs, RCVLPC_SELLST_BASE, len: 0x15c);
6420 tg3_rd32_loop(tp, dst: regs, RCVDBDI_MODE, len: 0x0c);
6421 tg3_rd32_loop(tp, dst: regs, RCVDBDI_JUMBO_BD, len: 0x3c);
6422 tg3_rd32_loop(tp, dst: regs, RCVDBDI_BD_PROD_IDX_0, len: 0x44);
6423 tg3_rd32_loop(tp, dst: regs, RCVDCC_MODE, len: 0x04);
6424 tg3_rd32_loop(tp, dst: regs, RCVBDI_MODE, len: 0x20);
6425 tg3_rd32_loop(tp, dst: regs, RCVCC_MODE, len: 0x14);
6426 tg3_rd32_loop(tp, dst: regs, RCVLSC_MODE, len: 0x08);
6427 tg3_rd32_loop(tp, dst: regs, MBFREE_MODE, len: 0x08);
6428 tg3_rd32_loop(tp, dst: regs, HOSTCC_MODE, len: 0x100);
6429
6430 if (tg3_flag(tp, SUPPORT_MSIX))
6431 tg3_rd32_loop(tp, dst: regs, HOSTCC_RXCOL_TICKS_VEC1, len: 0x180);
6432
6433 tg3_rd32_loop(tp, dst: regs, MEMARB_MODE, len: 0x10);
6434 tg3_rd32_loop(tp, dst: regs, BUFMGR_MODE, len: 0x58);
6435 tg3_rd32_loop(tp, dst: regs, RDMAC_MODE, len: 0x08);
6436 tg3_rd32_loop(tp, dst: regs, WDMAC_MODE, len: 0x08);
6437 tg3_rd32_loop(tp, dst: regs, RX_CPU_MODE, len: 0x04);
6438 tg3_rd32_loop(tp, dst: regs, RX_CPU_STATE, len: 0x04);
6439 tg3_rd32_loop(tp, dst: regs, RX_CPU_PGMCTR, len: 0x04);
6440 tg3_rd32_loop(tp, dst: regs, RX_CPU_HWBKPT, len: 0x04);
6441
6442 if (!tg3_flag(tp, 5705_PLUS)) {
6443 tg3_rd32_loop(tp, dst: regs, TX_CPU_MODE, len: 0x04);
6444 tg3_rd32_loop(tp, dst: regs, TX_CPU_STATE, len: 0x04);
6445 tg3_rd32_loop(tp, dst: regs, TX_CPU_PGMCTR, len: 0x04);
6446 }
6447
6448 tg3_rd32_loop(tp, dst: regs, GRCMBOX_INTERRUPT_0, len: 0x110);
6449 tg3_rd32_loop(tp, dst: regs, FTQ_RESET, len: 0x120);
6450 tg3_rd32_loop(tp, dst: regs, MSGINT_MODE, len: 0x0c);
6451 tg3_rd32_loop(tp, dst: regs, DMAC_MODE, len: 0x04);
6452 tg3_rd32_loop(tp, dst: regs, GRC_MODE, len: 0x4c);
6453
6454 if (tg3_flag(tp, NVRAM))
6455 tg3_rd32_loop(tp, dst: regs, NVRAM_CMD, len: 0x24);
6456}
6457
6458static void tg3_dump_state(struct tg3 *tp)
6459{
6460 int i;
6461 u32 *regs;
6462
6463 /* If it is a PCI error, all registers will be 0xffff,
6464 * we don't dump them out, just report the error and return
6465 */
6466 if (tp->pdev->error_state != pci_channel_io_normal) {
6467 netdev_err(dev: tp->dev, format: "PCI channel ERROR!\n");
6468 return;
6469 }
6470
6471 regs = kzalloc(TG3_REG_BLK_SIZE, GFP_ATOMIC);
6472 if (!regs)
6473 return;
6474
6475 if (tg3_flag(tp, PCI_EXPRESS)) {
6476 /* Read up to but not including private PCI registers */
6477 for (i = 0; i < TG3_PCIE_TLDLPL_PORT; i += sizeof(u32))
6478 regs[i / sizeof(u32)] = tr32(i);
6479 } else
6480 tg3_dump_legacy_regs(tp, regs);
6481
6482 for (i = 0; i < TG3_REG_BLK_SIZE / sizeof(u32); i += 4) {
6483 if (!regs[i + 0] && !regs[i + 1] &&
6484 !regs[i + 2] && !regs[i + 3])
6485 continue;
6486
6487 netdev_err(dev: tp->dev, format: "0x%08x: 0x%08x, 0x%08x, 0x%08x, 0x%08x\n",
6488 i * 4,
6489 regs[i + 0], regs[i + 1], regs[i + 2], regs[i + 3]);
6490 }
6491
6492 kfree(objp: regs);
6493
6494 for (i = 0; i < tp->irq_cnt; i++) {
6495 struct tg3_napi *tnapi = &tp->napi[i];
6496
6497 /* SW status block */
6498 netdev_err(dev: tp->dev,
6499 format: "%d: Host status block [%08x:%08x:(%04x:%04x:%04x):(%04x:%04x)]\n",
6500 i,
6501 tnapi->hw_status->status,
6502 tnapi->hw_status->status_tag,
6503 tnapi->hw_status->rx_jumbo_consumer,
6504 tnapi->hw_status->rx_consumer,
6505 tnapi->hw_status->rx_mini_consumer,
6506 tnapi->hw_status->idx[0].rx_producer,
6507 tnapi->hw_status->idx[0].tx_consumer);
6508
6509 netdev_err(dev: tp->dev,
6510 format: "%d: NAPI info [%08x:%08x:(%04x:%04x:%04x):%04x:(%04x:%04x:%04x:%04x)]\n",
6511 i,
6512 tnapi->last_tag, tnapi->last_irq_tag,
6513 tnapi->tx_prod, tnapi->tx_cons, tnapi->tx_pending,
6514 tnapi->rx_rcb_ptr,
6515 tnapi->prodring.rx_std_prod_idx,
6516 tnapi->prodring.rx_std_cons_idx,
6517 tnapi->prodring.rx_jmb_prod_idx,
6518 tnapi->prodring.rx_jmb_cons_idx);
6519 }
6520}
6521
6522/* This is called whenever we suspect that the system chipset is re-
6523 * ordering the sequence of MMIO to the tx send mailbox. The symptom
6524 * is bogus tx completions. We try to recover by setting the
6525 * TG3_FLAG_MBOX_WRITE_REORDER flag and resetting the chip later
6526 * in the workqueue.
6527 */
6528static void tg3_tx_recover(struct tg3 *tp)
6529{
6530 BUG_ON(tg3_flag(tp, MBOX_WRITE_REORDER) ||
6531 tp->write32_tx_mbox == tg3_write_indirect_mbox);
6532
6533 netdev_warn(dev: tp->dev,
6534 format: "The system may be re-ordering memory-mapped I/O "
6535 "cycles to the network device, attempting to recover. "
6536 "Please report the problem to the driver maintainer "
6537 "and include system chipset information.\n");
6538
6539 tg3_flag_set(tp, TX_RECOVERY_PENDING);
6540}
6541
6542static inline u32 tg3_tx_avail(struct tg3_napi *tnapi)
6543{
6544 /* Tell compiler to fetch tx indices from memory. */
6545 barrier();
6546 return tnapi->tx_pending -
6547 ((tnapi->tx_prod - tnapi->tx_cons) & (TG3_TX_RING_SIZE - 1));
6548}
6549
6550/* Tigon3 never reports partial packet sends. So we do not
6551 * need special logic to handle SKBs that have not had all
6552 * of their frags sent yet, like SunGEM does.
6553 */
6554static void tg3_tx(struct tg3_napi *tnapi)
6555{
6556 struct tg3 *tp = tnapi->tp;
6557 u32 hw_idx = tnapi->hw_status->idx[0].tx_consumer;
6558 u32 sw_idx = tnapi->tx_cons;
6559 struct netdev_queue *txq;
6560 int index = tnapi - tp->napi;
6561 unsigned int pkts_compl = 0, bytes_compl = 0;
6562
6563 if (tg3_flag(tp, ENABLE_TSS))
6564 index--;
6565
6566 txq = netdev_get_tx_queue(dev: tp->dev, index);
6567
6568 while (sw_idx != hw_idx) {
6569 struct tg3_tx_ring_info *ri = &tnapi->tx_buffers[sw_idx];
6570 bool complete_skb_later = false;
6571 struct sk_buff *skb = ri->skb;
6572 int i, tx_bug = 0;
6573
6574 if (unlikely(skb == NULL)) {
6575 tg3_tx_recover(tp);
6576 return;
6577 }
6578
6579 if (tnapi->tx_ring[sw_idx].len_flags & TXD_FLAG_HWTSTAMP) {
6580 struct skb_shared_hwtstamps timestamp;
6581 u64 hwclock;
6582
6583 tg3_read_tx_tstamp(tp, hwclock: &hwclock);
6584 if (hwclock != tp->pre_tx_ts) {
6585 tg3_hwclock_to_timestamp(tp, hwclock, timestamp: &timestamp);
6586 skb_tstamp_tx(orig_skb: skb, hwtstamps: &timestamp);
6587 tp->pre_tx_ts = 0;
6588 } else {
6589 tp->tx_tstamp_skb = skb;
6590 complete_skb_later = true;
6591 }
6592 }
6593
6594 dma_unmap_single(&tp->pdev->dev, dma_unmap_addr(ri, mapping),
6595 skb_headlen(skb), DMA_TO_DEVICE);
6596
6597 ri->skb = NULL;
6598
6599 while (ri->fragmented) {
6600 ri->fragmented = false;
6601 sw_idx = NEXT_TX(sw_idx);
6602 ri = &tnapi->tx_buffers[sw_idx];
6603 }
6604
6605 sw_idx = NEXT_TX(sw_idx);
6606
6607 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
6608 ri = &tnapi->tx_buffers[sw_idx];
6609 if (unlikely(ri->skb != NULL || sw_idx == hw_idx))
6610 tx_bug = 1;
6611
6612 dma_unmap_page(&tp->pdev->dev,
6613 dma_unmap_addr(ri, mapping),
6614 skb_frag_size(&skb_shinfo(skb)->frags[i]),
6615 DMA_TO_DEVICE);
6616
6617 while (ri->fragmented) {
6618 ri->fragmented = false;
6619 sw_idx = NEXT_TX(sw_idx);
6620 ri = &tnapi->tx_buffers[sw_idx];
6621 }
6622
6623 sw_idx = NEXT_TX(sw_idx);
6624 }
6625
6626 pkts_compl++;
6627 bytes_compl += skb->len;
6628
6629 if (!complete_skb_later)
6630 dev_consume_skb_any(skb);
6631 else
6632 ptp_schedule_worker(ptp: tp->ptp_clock, delay: 0);
6633
6634 if (unlikely(tx_bug)) {
6635 tg3_tx_recover(tp);
6636 return;
6637 }
6638 }
6639
6640 netdev_tx_completed_queue(dev_queue: txq, pkts: pkts_compl, bytes: bytes_compl);
6641
6642 tnapi->tx_cons = sw_idx;
6643
6644 /* Need to make the tx_cons update visible to __tg3_start_xmit()
6645 * before checking for netif_queue_stopped(). Without the
6646 * memory barrier, there is a small possibility that __tg3_start_xmit()
6647 * will miss it and cause the queue to be stopped forever.
6648 */
6649 smp_mb();
6650
6651 if (unlikely(netif_tx_queue_stopped(txq) &&
6652 (tg3_tx_avail(tnapi) > TG3_TX_WAKEUP_THRESH(tnapi)))) {
6653 __netif_tx_lock(txq, smp_processor_id());
6654 if (netif_tx_queue_stopped(dev_queue: txq) &&
6655 (tg3_tx_avail(tnapi) > TG3_TX_WAKEUP_THRESH(tnapi)))
6656 netif_tx_wake_queue(dev_queue: txq);
6657 __netif_tx_unlock(txq);
6658 }
6659}
6660
6661static void tg3_frag_free(bool is_frag, void *data)
6662{
6663 if (is_frag)
6664 skb_free_frag(addr: data);
6665 else
6666 kfree(objp: data);
6667}
6668
6669static void tg3_rx_data_free(struct tg3 *tp, struct ring_info *ri, u32 map_sz)
6670{
6671 unsigned int skb_size = SKB_DATA_ALIGN(map_sz + TG3_RX_OFFSET(tp)) +
6672 SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
6673
6674 if (!ri->data)
6675 return;
6676
6677 dma_unmap_single(&tp->pdev->dev, dma_unmap_addr(ri, mapping), map_sz,
6678 DMA_FROM_DEVICE);
6679 tg3_frag_free(is_frag: skb_size <= PAGE_SIZE, data: ri->data);
6680 ri->data = NULL;
6681}
6682
6683
6684/* Returns size of skb allocated or < 0 on error.
6685 *
6686 * We only need to fill in the address because the other members
6687 * of the RX descriptor are invariant, see tg3_init_rings.
6688 *
6689 * Note the purposeful asymmetry of cpu vs. chip accesses. For
6690 * posting buffers we only dirty the first cache line of the RX
6691 * descriptor (containing the address). Whereas for the RX status
6692 * buffers the cpu only reads the last cacheline of the RX descriptor
6693 * (to fetch the error flags, vlan tag, checksum, and opaque cookie).
6694 */
6695static int tg3_alloc_rx_data(struct tg3 *tp, struct tg3_rx_prodring_set *tpr,
6696 u32 opaque_key, u32 dest_idx_unmasked,
6697 unsigned int *frag_size)
6698{
6699 struct tg3_rx_buffer_desc *desc;
6700 struct ring_info *map;
6701 u8 *data;
6702 dma_addr_t mapping;
6703 int skb_size, data_size, dest_idx;
6704
6705 switch (opaque_key) {
6706 case RXD_OPAQUE_RING_STD:
6707 dest_idx = dest_idx_unmasked & tp->rx_std_ring_mask;
6708 desc = &tpr->rx_std[dest_idx];
6709 map = &tpr->rx_std_buffers[dest_idx];
6710 data_size = tp->rx_pkt_map_sz;
6711 break;
6712
6713 case RXD_OPAQUE_RING_JUMBO:
6714 dest_idx = dest_idx_unmasked & tp->rx_jmb_ring_mask;
6715 desc = &tpr->rx_jmb[dest_idx].std;
6716 map = &tpr->rx_jmb_buffers[dest_idx];
6717 data_size = TG3_RX_JMB_MAP_SZ;
6718 break;
6719
6720 default:
6721 return -EINVAL;
6722 }
6723
6724 /* Do not overwrite any of the map or rp information
6725 * until we are sure we can commit to a new buffer.
6726 *
6727 * Callers depend upon this behavior and assume that
6728 * we leave everything unchanged if we fail.
6729 */
6730 skb_size = SKB_DATA_ALIGN(data_size + TG3_RX_OFFSET(tp)) +
6731 SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
6732 if (skb_size <= PAGE_SIZE) {
6733 data = napi_alloc_frag(fragsz: skb_size);
6734 *frag_size = skb_size;
6735 } else {
6736 data = kmalloc(skb_size, GFP_ATOMIC);
6737 *frag_size = 0;
6738 }
6739 if (!data)
6740 return -ENOMEM;
6741
6742 mapping = dma_map_single(&tp->pdev->dev, data + TG3_RX_OFFSET(tp),
6743 data_size, DMA_FROM_DEVICE);
6744 if (unlikely(dma_mapping_error(&tp->pdev->dev, mapping))) {
6745 tg3_frag_free(is_frag: skb_size <= PAGE_SIZE, data);
6746 return -EIO;
6747 }
6748
6749 map->data = data;
6750 dma_unmap_addr_set(map, mapping, mapping);
6751
6752 desc->addr_hi = ((u64)mapping >> 32);
6753 desc->addr_lo = ((u64)mapping & 0xffffffff);
6754
6755 return data_size;
6756}
6757
6758/* We only need to move over in the address because the other
6759 * members of the RX descriptor are invariant. See notes above
6760 * tg3_alloc_rx_data for full details.
6761 */
6762static void tg3_recycle_rx(struct tg3_napi *tnapi,
6763 struct tg3_rx_prodring_set *dpr,
6764 u32 opaque_key, int src_idx,
6765 u32 dest_idx_unmasked)
6766{
6767 struct tg3 *tp = tnapi->tp;
6768 struct tg3_rx_buffer_desc *src_desc, *dest_desc;
6769 struct ring_info *src_map, *dest_map;
6770 struct tg3_rx_prodring_set *spr = &tp->napi[0].prodring;
6771 int dest_idx;
6772
6773 switch (opaque_key) {
6774 case RXD_OPAQUE_RING_STD:
6775 dest_idx = dest_idx_unmasked & tp->rx_std_ring_mask;
6776 dest_desc = &dpr->rx_std[dest_idx];
6777 dest_map = &dpr->rx_std_buffers[dest_idx];
6778 src_desc = &spr->rx_std[src_idx];
6779 src_map = &spr->rx_std_buffers[src_idx];
6780 break;
6781
6782 case RXD_OPAQUE_RING_JUMBO:
6783 dest_idx = dest_idx_unmasked & tp->rx_jmb_ring_mask;
6784 dest_desc = &dpr->rx_jmb[dest_idx].std;
6785 dest_map = &dpr->rx_jmb_buffers[dest_idx];
6786 src_desc = &spr->rx_jmb[src_idx].std;
6787 src_map = &spr->rx_jmb_buffers[src_idx];
6788 break;
6789
6790 default:
6791 return;
6792 }
6793
6794 dest_map->data = src_map->data;
6795 dma_unmap_addr_set(dest_map, mapping,
6796 dma_unmap_addr(src_map, mapping));
6797 dest_desc->addr_hi = src_desc->addr_hi;
6798 dest_desc->addr_lo = src_desc->addr_lo;
6799
6800 /* Ensure that the update to the skb happens after the physical
6801 * addresses have been transferred to the new BD location.
6802 */
6803 smp_wmb();
6804
6805 src_map->data = NULL;
6806}
6807
6808/* The RX ring scheme is composed of multiple rings which post fresh
6809 * buffers to the chip, and one special ring the chip uses to report
6810 * status back to the host.
6811 *
6812 * The special ring reports the status of received packets to the
6813 * host. The chip does not write into the original descriptor the
6814 * RX buffer was obtained from. The chip simply takes the original
6815 * descriptor as provided by the host, updates the status and length
6816 * field, then writes this into the next status ring entry.
6817 *
6818 * Each ring the host uses to post buffers to the chip is described
6819 * by a TG3_BDINFO entry in the chips SRAM area. When a packet arrives,
6820 * it is first placed into the on-chip ram. When the packet's length
6821 * is known, it walks down the TG3_BDINFO entries to select the ring.
6822 * Each TG3_BDINFO specifies a MAXLEN field and the first TG3_BDINFO
6823 * which is within the range of the new packet's length is chosen.
6824 *
6825 * The "separate ring for rx status" scheme may sound queer, but it makes
6826 * sense from a cache coherency perspective. If only the host writes
6827 * to the buffer post rings, and only the chip writes to the rx status
6828 * rings, then cache lines never move beyond shared-modified state.
6829 * If both the host and chip were to write into the same ring, cache line
6830 * eviction could occur since both entities want it in an exclusive state.
6831 */
6832static int tg3_rx(struct tg3_napi *tnapi, int budget)
6833{
6834 struct tg3 *tp = tnapi->tp;
6835 u32 work_mask, rx_std_posted = 0;
6836 u32 std_prod_idx, jmb_prod_idx;
6837 u32 sw_idx = tnapi->rx_rcb_ptr;
6838 u16 hw_idx;
6839 int received;
6840 struct tg3_rx_prodring_set *tpr = &tnapi->prodring;
6841
6842 hw_idx = *(tnapi->rx_rcb_prod_idx);
6843 /*
6844 * We need to order the read of hw_idx and the read of
6845 * the opaque cookie.
6846 */
6847 rmb();
6848 work_mask = 0;
6849 received = 0;
6850 std_prod_idx = tpr->rx_std_prod_idx;
6851 jmb_prod_idx = tpr->rx_jmb_prod_idx;
6852 while (sw_idx != hw_idx && budget > 0) {
6853 struct ring_info *ri;
6854 struct tg3_rx_buffer_desc *desc = &tnapi->rx_rcb[sw_idx];
6855 unsigned int len;
6856 struct sk_buff *skb;
6857 dma_addr_t dma_addr;
6858 u32 opaque_key, desc_idx, *post_ptr;
6859 u8 *data;
6860 u64 tstamp = 0;
6861
6862 desc_idx = desc->opaque & RXD_OPAQUE_INDEX_MASK;
6863 opaque_key = desc->opaque & RXD_OPAQUE_RING_MASK;
6864 if (opaque_key == RXD_OPAQUE_RING_STD) {
6865 ri = &tp->napi[0].prodring.rx_std_buffers[desc_idx];
6866 dma_addr = dma_unmap_addr(ri, mapping);
6867 data = ri->data;
6868 post_ptr = &std_prod_idx;
6869 rx_std_posted++;
6870 } else if (opaque_key == RXD_OPAQUE_RING_JUMBO) {
6871 ri = &tp->napi[0].prodring.rx_jmb_buffers[desc_idx];
6872 dma_addr = dma_unmap_addr(ri, mapping);
6873 data = ri->data;
6874 post_ptr = &jmb_prod_idx;
6875 } else
6876 goto next_pkt_nopost;
6877
6878 work_mask |= opaque_key;
6879
6880 if (desc->err_vlan & RXD_ERR_MASK) {
6881 drop_it:
6882 tg3_recycle_rx(tnapi, dpr: tpr, opaque_key,
6883 src_idx: desc_idx, dest_idx_unmasked: *post_ptr);
6884 drop_it_no_recycle:
6885 /* Other statistics kept track of by card. */
6886 tnapi->rx_dropped++;
6887 goto next_pkt;
6888 }
6889
6890 prefetch(data + TG3_RX_OFFSET(tp));
6891 len = ((desc->idx_len & RXD_LEN_MASK) >> RXD_LEN_SHIFT) -
6892 ETH_FCS_LEN;
6893
6894 if ((desc->type_flags & RXD_FLAG_PTPSTAT_MASK) ==
6895 RXD_FLAG_PTPSTAT_PTPV1 ||
6896 (desc->type_flags & RXD_FLAG_PTPSTAT_MASK) ==
6897 RXD_FLAG_PTPSTAT_PTPV2) {
6898 tstamp = tr32(TG3_RX_TSTAMP_LSB);
6899 tstamp |= (u64)tr32(TG3_RX_TSTAMP_MSB) << 32;
6900 }
6901
6902 if (len > TG3_RX_COPY_THRESH(tp)) {
6903 int skb_size;
6904 unsigned int frag_size;
6905
6906 skb_size = tg3_alloc_rx_data(tp, tpr, opaque_key,
6907 dest_idx_unmasked: *post_ptr, frag_size: &frag_size);
6908 if (skb_size < 0)
6909 goto drop_it;
6910
6911 dma_unmap_single(&tp->pdev->dev, dma_addr, skb_size,
6912 DMA_FROM_DEVICE);
6913
6914 /* Ensure that the update to the data happens
6915 * after the usage of the old DMA mapping.
6916 */
6917 smp_wmb();
6918
6919 ri->data = NULL;
6920
6921 if (frag_size)
6922 skb = build_skb(data, frag_size);
6923 else
6924 skb = slab_build_skb(data);
6925 if (!skb) {
6926 tg3_frag_free(is_frag: frag_size != 0, data);
6927 goto drop_it_no_recycle;
6928 }
6929 skb_reserve(skb, TG3_RX_OFFSET(tp));
6930 } else {
6931 tg3_recycle_rx(tnapi, dpr: tpr, opaque_key,
6932 src_idx: desc_idx, dest_idx_unmasked: *post_ptr);
6933
6934 skb = netdev_alloc_skb(dev: tp->dev,
6935 length: len + TG3_RAW_IP_ALIGN);
6936 if (skb == NULL)
6937 goto drop_it_no_recycle;
6938
6939 skb_reserve(skb, TG3_RAW_IP_ALIGN);
6940 dma_sync_single_for_cpu(dev: &tp->pdev->dev, addr: dma_addr, size: len,
6941 dir: DMA_FROM_DEVICE);
6942 memcpy(to: skb->data,
6943 from: data + TG3_RX_OFFSET(tp),
6944 len);
6945 dma_sync_single_for_device(dev: &tp->pdev->dev, addr: dma_addr,
6946 size: len, dir: DMA_FROM_DEVICE);
6947 }
6948
6949 skb_put(skb, len);
6950 if (tstamp)
6951 tg3_hwclock_to_timestamp(tp, hwclock: tstamp,
6952 timestamp: skb_hwtstamps(skb));
6953
6954 if ((tp->dev->features & NETIF_F_RXCSUM) &&
6955 (desc->type_flags & RXD_FLAG_TCPUDP_CSUM) &&
6956 (((desc->ip_tcp_csum & RXD_TCPCSUM_MASK)
6957 >> RXD_TCPCSUM_SHIFT) == 0xffff))
6958 skb->ip_summed = CHECKSUM_UNNECESSARY;
6959 else
6960 skb_checksum_none_assert(skb);
6961
6962 skb->protocol = eth_type_trans(skb, dev: tp->dev);
6963
6964 if (len > (tp->dev->mtu + ETH_HLEN) &&
6965 skb->protocol != htons(ETH_P_8021Q) &&
6966 skb->protocol != htons(ETH_P_8021AD)) {
6967 dev_kfree_skb_any(skb);
6968 goto drop_it_no_recycle;
6969 }
6970
6971 if (desc->type_flags & RXD_FLAG_VLAN &&
6972 !(tp->rx_mode & RX_MODE_KEEP_VLAN_TAG))
6973 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q),
6974 vlan_tci: desc->err_vlan & RXD_VLAN_MASK);
6975
6976 napi_gro_receive(napi: &tnapi->napi, skb);
6977
6978 received++;
6979 budget--;
6980
6981next_pkt:
6982 (*post_ptr)++;
6983
6984 if (unlikely(rx_std_posted >= tp->rx_std_max_post)) {
6985 tpr->rx_std_prod_idx = std_prod_idx &
6986 tp->rx_std_ring_mask;
6987 tw32_rx_mbox(TG3_RX_STD_PROD_IDX_REG,
6988 tpr->rx_std_prod_idx);
6989 work_mask &= ~RXD_OPAQUE_RING_STD;
6990 rx_std_posted = 0;
6991 }
6992next_pkt_nopost:
6993 sw_idx++;
6994 sw_idx &= tp->rx_ret_ring_mask;
6995
6996 /* Refresh hw_idx to see if there is new work */
6997 if (sw_idx == hw_idx) {
6998 hw_idx = *(tnapi->rx_rcb_prod_idx);
6999 rmb();
7000 }
7001 }
7002
7003 /* ACK the status ring. */
7004 tnapi->rx_rcb_ptr = sw_idx;
7005 tw32_rx_mbox(tnapi->consmbox, sw_idx);
7006
7007 /* Refill RX ring(s). */
7008 if (!tg3_flag(tp, ENABLE_RSS)) {
7009 /* Sync BD data before updating mailbox */
7010 wmb();
7011
7012 if (work_mask & RXD_OPAQUE_RING_STD) {
7013 tpr->rx_std_prod_idx = std_prod_idx &
7014 tp->rx_std_ring_mask;
7015 tw32_rx_mbox(TG3_RX_STD_PROD_IDX_REG,
7016 tpr->rx_std_prod_idx);
7017 }
7018 if (work_mask & RXD_OPAQUE_RING_JUMBO) {
7019 tpr->rx_jmb_prod_idx = jmb_prod_idx &
7020 tp->rx_jmb_ring_mask;
7021 tw32_rx_mbox(TG3_RX_JMB_PROD_IDX_REG,
7022 tpr->rx_jmb_prod_idx);
7023 }
7024 } else if (work_mask) {
7025 /* rx_std_buffers[] and rx_jmb_buffers[] entries must be
7026 * updated before the producer indices can be updated.
7027 */
7028 smp_wmb();
7029
7030 tpr->rx_std_prod_idx = std_prod_idx & tp->rx_std_ring_mask;
7031 tpr->rx_jmb_prod_idx = jmb_prod_idx & tp->rx_jmb_ring_mask;
7032
7033 if (tnapi != &tp->napi[1]) {
7034 tp->rx_refill = true;
7035 napi_schedule(n: &tp->napi[1].napi);
7036 }
7037 }
7038
7039 return received;
7040}
7041
7042static void tg3_poll_link(struct tg3 *tp)
7043{
7044 /* handle link change and other phy events */
7045 if (!(tg3_flag(tp, USE_LINKCHG_REG) || tg3_flag(tp, POLL_SERDES))) {
7046 struct tg3_hw_status *sblk = tp->napi[0].hw_status;
7047
7048 if (sblk->status & SD_STATUS_LINK_CHG) {
7049 sblk->status = SD_STATUS_UPDATED |
7050 (sblk->status & ~SD_STATUS_LINK_CHG);
7051 spin_lock(lock: &tp->lock);
7052 if (tg3_flag(tp, USE_PHYLIB)) {
7053 tw32_f(MAC_STATUS,
7054 (MAC_STATUS_SYNC_CHANGED |
7055 MAC_STATUS_CFG_CHANGED |
7056 MAC_STATUS_MI_COMPLETION |
7057 MAC_STATUS_LNKSTATE_CHANGED));
7058 udelay(usec: 40);
7059 } else
7060 tg3_setup_phy(tp, force_reset: false);
7061 spin_unlock(lock: &tp->lock);
7062 }
7063 }
7064}
7065
7066static int tg3_rx_prodring_xfer(struct tg3 *tp,
7067 struct tg3_rx_prodring_set *dpr,
7068 struct tg3_rx_prodring_set *spr)
7069{
7070 u32 si, di, cpycnt, src_prod_idx;
7071 int i, err = 0;
7072
7073 while (1) {
7074 src_prod_idx = spr->rx_std_prod_idx;
7075
7076 /* Make sure updates to the rx_std_buffers[] entries and the
7077 * standard producer index are seen in the correct order.
7078 */
7079 smp_rmb();
7080
7081 if (spr->rx_std_cons_idx == src_prod_idx)
7082 break;
7083
7084 if (spr->rx_std_cons_idx < src_prod_idx)
7085 cpycnt = src_prod_idx - spr->rx_std_cons_idx;
7086 else
7087 cpycnt = tp->rx_std_ring_mask + 1 -
7088 spr->rx_std_cons_idx;
7089
7090 cpycnt = min(cpycnt,
7091 tp->rx_std_ring_mask + 1 - dpr->rx_std_prod_idx);
7092
7093 si = spr->rx_std_cons_idx;
7094 di = dpr->rx_std_prod_idx;
7095
7096 for (i = di; i < di + cpycnt; i++) {
7097 if (dpr->rx_std_buffers[i].data) {
7098 cpycnt = i - di;
7099 err = -ENOSPC;
7100 break;
7101 }
7102 }
7103
7104 if (!cpycnt)
7105 break;
7106
7107 /* Ensure that updates to the rx_std_buffers ring and the
7108 * shadowed hardware producer ring from tg3_recycle_skb() are
7109 * ordered correctly WRT the skb check above.
7110 */
7111 smp_rmb();
7112
7113 memcpy(to: &dpr->rx_std_buffers[di],
7114 from: &spr->rx_std_buffers[si],
7115 len: cpycnt * sizeof(struct ring_info));
7116
7117 for (i = 0; i < cpycnt; i++, di++, si++) {
7118 struct tg3_rx_buffer_desc *sbd, *dbd;
7119 sbd = &spr->rx_std[si];
7120 dbd = &dpr->rx_std[di];
7121 dbd->addr_hi = sbd->addr_hi;
7122 dbd->addr_lo = sbd->addr_lo;
7123 }
7124
7125 spr->rx_std_cons_idx = (spr->rx_std_cons_idx + cpycnt) &
7126 tp->rx_std_ring_mask;
7127 dpr->rx_std_prod_idx = (dpr->rx_std_prod_idx + cpycnt) &
7128 tp->rx_std_ring_mask;
7129 }
7130
7131 while (1) {
7132 src_prod_idx = spr->rx_jmb_prod_idx;
7133
7134 /* Make sure updates to the rx_jmb_buffers[] entries and
7135 * the jumbo producer index are seen in the correct order.
7136 */
7137 smp_rmb();
7138
7139 if (spr->rx_jmb_cons_idx == src_prod_idx)
7140 break;
7141
7142 if (spr->rx_jmb_cons_idx < src_prod_idx)
7143 cpycnt = src_prod_idx - spr->rx_jmb_cons_idx;
7144 else
7145 cpycnt = tp->rx_jmb_ring_mask + 1 -
7146 spr->rx_jmb_cons_idx;
7147
7148 cpycnt = min(cpycnt,
7149 tp->rx_jmb_ring_mask + 1 - dpr->rx_jmb_prod_idx);
7150
7151 si = spr->rx_jmb_cons_idx;
7152 di = dpr->rx_jmb_prod_idx;
7153
7154 for (i = di; i < di + cpycnt; i++) {
7155 if (dpr->rx_jmb_buffers[i].data) {
7156 cpycnt = i - di;
7157 err = -ENOSPC;
7158 break;
7159 }
7160 }
7161
7162 if (!cpycnt)
7163 break;
7164
7165 /* Ensure that updates to the rx_jmb_buffers ring and the
7166 * shadowed hardware producer ring from tg3_recycle_skb() are
7167 * ordered correctly WRT the skb check above.
7168 */
7169 smp_rmb();
7170
7171 memcpy(to: &dpr->rx_jmb_buffers[di],
7172 from: &spr->rx_jmb_buffers[si],
7173 len: cpycnt * sizeof(struct ring_info));
7174
7175 for (i = 0; i < cpycnt; i++, di++, si++) {
7176 struct tg3_rx_buffer_desc *sbd, *dbd;
7177 sbd = &spr->rx_jmb[si].std;
7178 dbd = &dpr->rx_jmb[di].std;
7179 dbd->addr_hi = sbd->addr_hi;
7180 dbd->addr_lo = sbd->addr_lo;
7181 }
7182
7183 spr->rx_jmb_cons_idx = (spr->rx_jmb_cons_idx + cpycnt) &
7184 tp->rx_jmb_ring_mask;
7185 dpr->rx_jmb_prod_idx = (dpr->rx_jmb_prod_idx + cpycnt) &
7186 tp->rx_jmb_ring_mask;
7187 }
7188
7189 return err;
7190}
7191
7192static int tg3_poll_work(struct tg3_napi *tnapi, int work_done, int budget)
7193{
7194 struct tg3 *tp = tnapi->tp;
7195
7196 /* run TX completion thread */
7197 if (tnapi->hw_status->idx[0].tx_consumer != tnapi->tx_cons) {
7198 tg3_tx(tnapi);
7199 if (unlikely(tg3_flag(tp, TX_RECOVERY_PENDING)))
7200 return work_done;
7201 }
7202
7203 if (!tnapi->rx_rcb_prod_idx)
7204 return work_done;
7205
7206 /* run RX thread, within the bounds set by NAPI.
7207 * All RX "locking" is done by ensuring outside
7208 * code synchronizes with tg3->napi.poll()
7209 */
7210 if (*(tnapi->rx_rcb_prod_idx) != tnapi->rx_rcb_ptr)
7211 work_done += tg3_rx(tnapi, budget: budget - work_done);
7212
7213 if (tg3_flag(tp, ENABLE_RSS) && tnapi == &tp->napi[1]) {
7214 struct tg3_rx_prodring_set *dpr = &tp->napi[0].prodring;
7215 int i, err = 0;
7216 u32 std_prod_idx = dpr->rx_std_prod_idx;
7217 u32 jmb_prod_idx = dpr->rx_jmb_prod_idx;
7218
7219 tp->rx_refill = false;
7220 for (i = 1; i <= tp->rxq_cnt; i++)
7221 err |= tg3_rx_prodring_xfer(tp, dpr,
7222 spr: &tp->napi[i].prodring);
7223
7224 wmb();
7225
7226 if (std_prod_idx != dpr->rx_std_prod_idx)
7227 tw32_rx_mbox(TG3_RX_STD_PROD_IDX_REG,
7228 dpr->rx_std_prod_idx);
7229
7230 if (jmb_prod_idx != dpr->rx_jmb_prod_idx)
7231 tw32_rx_mbox(TG3_RX_JMB_PROD_IDX_REG,
7232 dpr->rx_jmb_prod_idx);
7233
7234 if (err)
7235 tw32_f(HOSTCC_MODE, tp->coal_now);
7236 }
7237
7238 return work_done;
7239}
7240
7241static inline void tg3_reset_task_schedule(struct tg3 *tp)
7242{
7243 if (!test_and_set_bit(nr: TG3_FLAG_RESET_TASK_PENDING, addr: tp->tg3_flags))
7244 schedule_work(work: &tp->reset_task);
7245}
7246
7247static inline void tg3_reset_task_cancel(struct tg3 *tp)
7248{
7249 if (test_and_clear_bit(nr: TG3_FLAG_RESET_TASK_PENDING, addr: tp->tg3_flags))
7250 cancel_work_sync(work: &tp->reset_task);
7251 tg3_flag_clear(tp, TX_RECOVERY_PENDING);
7252}
7253
7254static int tg3_poll_msix(struct napi_struct *napi, int budget)
7255{
7256 struct tg3_napi *tnapi = container_of(napi, struct tg3_napi, napi);
7257 struct tg3 *tp = tnapi->tp;
7258 int work_done = 0;
7259 struct tg3_hw_status *sblk = tnapi->hw_status;
7260
7261 while (1) {
7262 work_done = tg3_poll_work(tnapi, work_done, budget);
7263
7264 if (unlikely(tg3_flag(tp, TX_RECOVERY_PENDING)))
7265 goto tx_recovery;
7266
7267 if (unlikely(work_done >= budget))
7268 break;
7269
7270 /* tp->last_tag is used in tg3_int_reenable() below
7271 * to tell the hw how much work has been processed,
7272 * so we must read it before checking for more work.
7273 */
7274 tnapi->last_tag = sblk->status_tag;
7275 tnapi->last_irq_tag = tnapi->last_tag;
7276 rmb();
7277
7278 /* check for RX/TX work to do */
7279 if (likely(sblk->idx[0].tx_consumer == tnapi->tx_cons &&
7280 *(tnapi->rx_rcb_prod_idx) == tnapi->rx_rcb_ptr)) {
7281
7282 /* This test here is not race free, but will reduce
7283 * the number of interrupts by looping again.
7284 */
7285 if (tnapi == &tp->napi[1] && tp->rx_refill)
7286 continue;
7287
7288 napi_complete_done(n: napi, work_done);
7289 /* Reenable interrupts. */
7290 tw32_mailbox(tnapi->int_mbox, tnapi->last_tag << 24);
7291
7292 /* This test here is synchronized by napi_schedule()
7293 * and napi_complete() to close the race condition.
7294 */
7295 if (unlikely(tnapi == &tp->napi[1] && tp->rx_refill)) {
7296 tw32(HOSTCC_MODE, tp->coalesce_mode |
7297 HOSTCC_MODE_ENABLE |
7298 tnapi->coal_now);
7299 }
7300 break;
7301 }
7302 }
7303
7304 tg3_send_ape_heartbeat(tp, TG3_APE_HB_INTERVAL << 1);
7305 return work_done;
7306
7307tx_recovery:
7308 /* work_done is guaranteed to be less than budget. */
7309 napi_complete(n: napi);
7310 tg3_reset_task_schedule(tp);
7311 return work_done;
7312}
7313
7314static void tg3_process_error(struct tg3 *tp)
7315{
7316 u32 val;
7317 bool real_error = false;
7318
7319 if (tg3_flag(tp, ERROR_PROCESSED))
7320 return;
7321
7322 /* Check Flow Attention register */
7323 val = tr32(HOSTCC_FLOW_ATTN);
7324 if (val & ~HOSTCC_FLOW_ATTN_MBUF_LWM) {
7325 netdev_err(dev: tp->dev, format: "FLOW Attention error. Resetting chip.\n");
7326 real_error = true;
7327 }
7328
7329 if (tr32(MSGINT_STATUS) & ~MSGINT_STATUS_MSI_REQ) {
7330 netdev_err(dev: tp->dev, format: "MSI Status error. Resetting chip.\n");
7331 real_error = true;
7332 }
7333
7334 if (tr32(RDMAC_STATUS) || tr32(WDMAC_STATUS)) {
7335 netdev_err(dev: tp->dev, format: "DMA Status error. Resetting chip.\n");
7336 real_error = true;
7337 }
7338
7339 if (!real_error)
7340 return;
7341
7342 tg3_dump_state(tp);
7343
7344 tg3_flag_set(tp, ERROR_PROCESSED);
7345 tg3_reset_task_schedule(tp);
7346}
7347
7348static int tg3_poll(struct napi_struct *napi, int budget)
7349{
7350 struct tg3_napi *tnapi = container_of(napi, struct tg3_napi, napi);
7351 struct tg3 *tp = tnapi->tp;
7352 int work_done = 0;
7353 struct tg3_hw_status *sblk = tnapi->hw_status;
7354
7355 while (1) {
7356 if (sblk->status & SD_STATUS_ERROR)
7357 tg3_process_error(tp);
7358
7359 tg3_poll_link(tp);
7360
7361 work_done = tg3_poll_work(tnapi, work_done, budget);
7362
7363 if (unlikely(tg3_flag(tp, TX_RECOVERY_PENDING)))
7364 goto tx_recovery;
7365
7366 if (unlikely(work_done >= budget))
7367 break;
7368
7369 if (tg3_flag(tp, TAGGED_STATUS)) {
7370 /* tp->last_tag is used in tg3_int_reenable() below
7371 * to tell the hw how much work has been processed,
7372 * so we must read it before checking for more work.
7373 */
7374 tnapi->last_tag = sblk->status_tag;
7375 tnapi->last_irq_tag = tnapi->last_tag;
7376 rmb();
7377 } else
7378 sblk->status &= ~SD_STATUS_UPDATED;
7379
7380 if (likely(!tg3_has_work(tnapi))) {
7381 napi_complete_done(n: napi, work_done);
7382 tg3_int_reenable(tnapi);
7383 break;
7384 }
7385 }
7386
7387 tg3_send_ape_heartbeat(tp, TG3_APE_HB_INTERVAL << 1);
7388 return work_done;
7389
7390tx_recovery:
7391 /* work_done is guaranteed to be less than budget. */
7392 napi_complete(n: napi);
7393 tg3_reset_task_schedule(tp);
7394 return work_done;
7395}
7396
7397static void tg3_napi_disable(struct tg3 *tp)
7398{
7399 int txq_idx = tp->txq_cnt - 1;
7400 int rxq_idx = tp->rxq_cnt - 1;
7401 struct tg3_napi *tnapi;
7402 int i;
7403
7404 for (i = tp->irq_cnt - 1; i >= 0; i--) {
7405 tnapi = &tp->napi[i];
7406 if (tnapi->tx_buffers) {
7407 netif_queue_set_napi(dev: tp->dev, queue_index: txq_idx,
7408 type: NETDEV_QUEUE_TYPE_TX, NULL);
7409 txq_idx--;
7410 }
7411 if (tnapi->rx_rcb) {
7412 netif_queue_set_napi(dev: tp->dev, queue_index: rxq_idx,
7413 type: NETDEV_QUEUE_TYPE_RX, NULL);
7414 rxq_idx--;
7415 }
7416 napi_disable(n: &tnapi->napi);
7417 }
7418}
7419
7420static void tg3_napi_enable(struct tg3 *tp)
7421{
7422 int txq_idx = 0, rxq_idx = 0;
7423 struct tg3_napi *tnapi;
7424 int i;
7425
7426 for (i = 0; i < tp->irq_cnt; i++) {
7427 tnapi = &tp->napi[i];
7428 napi_enable_locked(n: &tnapi->napi);
7429 if (tnapi->tx_buffers) {
7430 netif_queue_set_napi(dev: tp->dev, queue_index: txq_idx,
7431 type: NETDEV_QUEUE_TYPE_TX,
7432 napi: &tnapi->napi);
7433 txq_idx++;
7434 }
7435 if (tnapi->rx_rcb) {
7436 netif_queue_set_napi(dev: tp->dev, queue_index: rxq_idx,
7437 type: NETDEV_QUEUE_TYPE_RX,
7438 napi: &tnapi->napi);
7439 rxq_idx++;
7440 }
7441 }
7442}
7443
7444static void tg3_napi_init(struct tg3 *tp)
7445{
7446 int i;
7447
7448 for (i = 0; i < tp->irq_cnt; i++) {
7449 netif_napi_add_locked(dev: tp->dev, napi: &tp->napi[i].napi,
7450 poll: i ? tg3_poll_msix : tg3_poll);
7451 netif_napi_set_irq_locked(napi: &tp->napi[i].napi,
7452 irq: tp->napi[i].irq_vec);
7453 }
7454}
7455
7456static void tg3_napi_fini(struct tg3 *tp)
7457{
7458 int i;
7459
7460 for (i = 0; i < tp->irq_cnt; i++)
7461 netif_napi_del(napi: &tp->napi[i].napi);
7462}
7463
7464static inline void tg3_netif_stop(struct tg3 *tp)
7465{
7466 netif_trans_update(dev: tp->dev); /* prevent tx timeout */
7467 tg3_napi_disable(tp);
7468 netif_carrier_off(dev: tp->dev);
7469 netif_tx_disable(dev: tp->dev);
7470}
7471
7472/* tp->lock must be held */
7473static inline void tg3_netif_start(struct tg3 *tp)
7474{
7475 tg3_ptp_resume(tp);
7476
7477 /* NOTE: unconditional netif_tx_wake_all_queues is only
7478 * appropriate so long as all callers are assured to
7479 * have free tx slots (such as after tg3_init_hw)
7480 */
7481 netif_tx_wake_all_queues(dev: tp->dev);
7482
7483 if (tp->link_up)
7484 netif_carrier_on(dev: tp->dev);
7485
7486 tg3_napi_enable(tp);
7487 tp->napi[0].hw_status->status |= SD_STATUS_UPDATED;
7488 tg3_enable_ints(tp);
7489}
7490
7491static void tg3_irq_quiesce(struct tg3 *tp)
7492 __releases(tp->lock)
7493 __acquires(tp->lock)
7494{
7495 int i;
7496
7497 BUG_ON(tp->irq_sync);
7498
7499 tp->irq_sync = 1;
7500 smp_mb();
7501
7502 spin_unlock_bh(lock: &tp->lock);
7503
7504 for (i = 0; i < tp->irq_cnt; i++)
7505 synchronize_irq(irq: tp->napi[i].irq_vec);
7506
7507 spin_lock_bh(lock: &tp->lock);
7508}
7509
7510/* Fully shutdown all tg3 driver activity elsewhere in the system.
7511 * If irq_sync is non-zero, then the IRQ handler must be synchronized
7512 * with as well. Most of the time, this is not necessary except when
7513 * shutting down the device.
7514 */
7515static inline void tg3_full_lock(struct tg3 *tp, int irq_sync)
7516{
7517 spin_lock_bh(lock: &tp->lock);
7518 if (irq_sync)
7519 tg3_irq_quiesce(tp);
7520}
7521
7522static inline void tg3_full_unlock(struct tg3 *tp)
7523{
7524 spin_unlock_bh(lock: &tp->lock);
7525}
7526
7527/* One-shot MSI handler - Chip automatically disables interrupt
7528 * after sending MSI so driver doesn't have to do it.
7529 */
7530static irqreturn_t tg3_msi_1shot(int irq, void *dev_id)
7531{
7532 struct tg3_napi *tnapi = dev_id;
7533 struct tg3 *tp = tnapi->tp;
7534
7535 prefetch(tnapi->hw_status);
7536 if (tnapi->rx_rcb)
7537 prefetch(&tnapi->rx_rcb[tnapi->rx_rcb_ptr]);
7538
7539 if (likely(!tg3_irq_sync(tp)))
7540 napi_schedule(n: &tnapi->napi);
7541
7542 return IRQ_HANDLED;
7543}
7544
7545/* MSI ISR - No need to check for interrupt sharing and no need to
7546 * flush status block and interrupt mailbox. PCI ordering rules
7547 * guarantee that MSI will arrive after the status block.
7548 */
7549static irqreturn_t tg3_msi(int irq, void *dev_id)
7550{
7551 struct tg3_napi *tnapi = dev_id;
7552 struct tg3 *tp = tnapi->tp;
7553
7554 prefetch(tnapi->hw_status);
7555 if (tnapi->rx_rcb)
7556 prefetch(&tnapi->rx_rcb[tnapi->rx_rcb_ptr]);
7557 /*
7558 * Writing any value to intr-mbox-0 clears PCI INTA# and
7559 * chip-internal interrupt pending events.
7560 * Writing non-zero to intr-mbox-0 additional tells the
7561 * NIC to stop sending us irqs, engaging "in-intr-handler"
7562 * event coalescing.
7563 */
7564 tw32_mailbox(tnapi->int_mbox, 0x00000001);
7565 if (likely(!tg3_irq_sync(tp)))
7566 napi_schedule(n: &tnapi->napi);
7567
7568 return IRQ_RETVAL(1);
7569}
7570
7571static irqreturn_t tg3_interrupt(int irq, void *dev_id)
7572{
7573 struct tg3_napi *tnapi = dev_id;
7574 struct tg3 *tp = tnapi->tp;
7575 struct tg3_hw_status *sblk = tnapi->hw_status;
7576 unsigned int handled = 1;
7577
7578 /* In INTx mode, it is possible for the interrupt to arrive at
7579 * the CPU before the status block posted prior to the interrupt.
7580 * Reading the PCI State register will confirm whether the
7581 * interrupt is ours and will flush the status block.
7582 */
7583 if (unlikely(!(sblk->status & SD_STATUS_UPDATED))) {
7584 if (tg3_flag(tp, CHIP_RESETTING) ||
7585 (tr32(TG3PCI_PCISTATE) & PCISTATE_INT_NOT_ACTIVE)) {
7586 handled = 0;
7587 goto out;
7588 }
7589 }
7590
7591 /*
7592 * Writing any value to intr-mbox-0 clears PCI INTA# and
7593 * chip-internal interrupt pending events.
7594 * Writing non-zero to intr-mbox-0 additional tells the
7595 * NIC to stop sending us irqs, engaging "in-intr-handler"
7596 * event coalescing.
7597 *
7598 * Flush the mailbox to de-assert the IRQ immediately to prevent
7599 * spurious interrupts. The flush impacts performance but
7600 * excessive spurious interrupts can be worse in some cases.
7601 */
7602 tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001);
7603 if (tg3_irq_sync(tp))
7604 goto out;
7605 sblk->status &= ~SD_STATUS_UPDATED;
7606 if (likely(tg3_has_work(tnapi))) {
7607 prefetch(&tnapi->rx_rcb[tnapi->rx_rcb_ptr]);
7608 napi_schedule(n: &tnapi->napi);
7609 } else {
7610 /* No work, shared interrupt perhaps? re-enable
7611 * interrupts, and flush that PCI write
7612 */
7613 tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW,
7614 0x00000000);
7615 }
7616out:
7617 return IRQ_RETVAL(handled);
7618}
7619
7620static irqreturn_t tg3_interrupt_tagged(int irq, void *dev_id)
7621{
7622 struct tg3_napi *tnapi = dev_id;
7623 struct tg3 *tp = tnapi->tp;
7624 struct tg3_hw_status *sblk = tnapi->hw_status;
7625 unsigned int handled = 1;
7626
7627 /* In INTx mode, it is possible for the interrupt to arrive at
7628 * the CPU before the status block posted prior to the interrupt.
7629 * Reading the PCI State register will confirm whether the
7630 * interrupt is ours and will flush the status block.
7631 */
7632 if (unlikely(sblk->status_tag == tnapi->last_irq_tag)) {
7633 if (tg3_flag(tp, CHIP_RESETTING) ||
7634 (tr32(TG3PCI_PCISTATE) & PCISTATE_INT_NOT_ACTIVE)) {
7635 handled = 0;
7636 goto out;
7637 }
7638 }
7639
7640 /*
7641 * writing any value to intr-mbox-0 clears PCI INTA# and
7642 * chip-internal interrupt pending events.
7643 * writing non-zero to intr-mbox-0 additional tells the
7644 * NIC to stop sending us irqs, engaging "in-intr-handler"
7645 * event coalescing.
7646 *
7647 * Flush the mailbox to de-assert the IRQ immediately to prevent
7648 * spurious interrupts. The flush impacts performance but
7649 * excessive spurious interrupts can be worse in some cases.
7650 */
7651 tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001);
7652
7653 /*
7654 * In a shared interrupt configuration, sometimes other devices'
7655 * interrupts will scream. We record the current status tag here
7656 * so that the above check can report that the screaming interrupts
7657 * are unhandled. Eventually they will be silenced.
7658 */
7659 tnapi->last_irq_tag = sblk->status_tag;
7660
7661 if (tg3_irq_sync(tp))
7662 goto out;
7663
7664 prefetch(&tnapi->rx_rcb[tnapi->rx_rcb_ptr]);
7665
7666 napi_schedule(n: &tnapi->napi);
7667
7668out:
7669 return IRQ_RETVAL(handled);
7670}
7671
7672/* ISR for interrupt test */
7673static irqreturn_t tg3_test_isr(int irq, void *dev_id)
7674{
7675 struct tg3_napi *tnapi = dev_id;
7676 struct tg3 *tp = tnapi->tp;
7677 struct tg3_hw_status *sblk = tnapi->hw_status;
7678
7679 if ((sblk->status & SD_STATUS_UPDATED) ||
7680 !(tr32(TG3PCI_PCISTATE) & PCISTATE_INT_NOT_ACTIVE)) {
7681 tg3_disable_ints(tp);
7682 return IRQ_RETVAL(1);
7683 }
7684 return IRQ_RETVAL(0);
7685}
7686
7687#ifdef CONFIG_NET_POLL_CONTROLLER
7688static void tg3_poll_controller(struct net_device *dev)
7689{
7690 int i;
7691 struct tg3 *tp = netdev_priv(dev);
7692
7693 if (tg3_irq_sync(tp))
7694 return;
7695
7696 for (i = 0; i < tp->irq_cnt; i++)
7697 tg3_interrupt(irq: tp->napi[i].irq_vec, dev_id: &tp->napi[i]);
7698}
7699#endif
7700
7701static void tg3_tx_timeout(struct net_device *dev, unsigned int txqueue)
7702{
7703 struct tg3 *tp = netdev_priv(dev);
7704
7705 if (netif_msg_tx_err(tp)) {
7706 netdev_err(dev, format: "transmit timed out, resetting\n");
7707 tg3_dump_state(tp);
7708 }
7709
7710 tg3_reset_task_schedule(tp);
7711}
7712
7713/* Test for DMA buffers crossing any 4GB boundaries: 4G, 8G, etc */
7714static inline int tg3_4g_overflow_test(dma_addr_t mapping, int len)
7715{
7716 u32 base = (u32) mapping & 0xffffffff;
7717
7718 return base + len + 8 < base;
7719}
7720
7721/* Test for TSO DMA buffers that cross into regions which are within MSS bytes
7722 * of any 4GB boundaries: 4G, 8G, etc
7723 */
7724static inline int tg3_4g_tso_overflow_test(struct tg3 *tp, dma_addr_t mapping,
7725 u32 len, u32 mss)
7726{
7727 if (tg3_asic_rev(tp) == ASIC_REV_5762 && mss) {
7728 u32 base = (u32) mapping & 0xffffffff;
7729
7730 return ((base + len + (mss & 0x3fff)) < base);
7731 }
7732 return 0;
7733}
7734
7735/* Test for DMA addresses > 40-bit */
7736static inline int tg3_40bit_overflow_test(struct tg3 *tp, dma_addr_t mapping,
7737 int len)
7738{
7739#if defined(CONFIG_HIGHMEM) && (BITS_PER_LONG == 64)
7740 if (tg3_flag(tp, 40BIT_DMA_BUG))
7741 return ((u64) mapping + len) > DMA_BIT_MASK(40);
7742 return 0;
7743#else
7744 return 0;
7745#endif
7746}
7747
7748static inline void tg3_tx_set_bd(struct tg3_tx_buffer_desc *txbd,
7749 dma_addr_t mapping, u32 len, u32 flags,
7750 u32 mss, u32 vlan)
7751{
7752 txbd->addr_hi = ((u64) mapping >> 32);
7753 txbd->addr_lo = ((u64) mapping & 0xffffffff);
7754 txbd->len_flags = (len << TXD_LEN_SHIFT) | (flags & 0x0000ffff);
7755 txbd->vlan_tag = (mss << TXD_MSS_SHIFT) | (vlan << TXD_VLAN_TAG_SHIFT);
7756}
7757
7758static bool tg3_tx_frag_set(struct tg3_napi *tnapi, u32 *entry, u32 *budget,
7759 dma_addr_t map, u32 len, u32 flags,
7760 u32 mss, u32 vlan)
7761{
7762 struct tg3 *tp = tnapi->tp;
7763 bool hwbug = false;
7764
7765 if (tg3_flag(tp, SHORT_DMA_BUG) && len <= 8)
7766 hwbug = true;
7767
7768 if (tg3_4g_overflow_test(mapping: map, len))
7769 hwbug = true;
7770
7771 if (tg3_4g_tso_overflow_test(tp, mapping: map, len, mss))
7772 hwbug = true;
7773
7774 if (tg3_40bit_overflow_test(tp, mapping: map, len))
7775 hwbug = true;
7776
7777 if (tp->dma_limit) {
7778 u32 prvidx = *entry;
7779 u32 tmp_flag = flags & ~TXD_FLAG_END;
7780 while (len > tp->dma_limit && *budget) {
7781 u32 frag_len = tp->dma_limit;
7782 len -= tp->dma_limit;
7783
7784 /* Avoid the 8byte DMA problem */
7785 if (len <= 8) {
7786 len += tp->dma_limit / 2;
7787 frag_len = tp->dma_limit / 2;
7788 }
7789
7790 tnapi->tx_buffers[*entry].fragmented = true;
7791
7792 tg3_tx_set_bd(txbd: &tnapi->tx_ring[*entry], mapping: map,
7793 len: frag_len, flags: tmp_flag, mss, vlan);
7794 *budget -= 1;
7795 prvidx = *entry;
7796 *entry = NEXT_TX(*entry);
7797
7798 map += frag_len;
7799 }
7800
7801 if (len) {
7802 if (*budget) {
7803 tg3_tx_set_bd(txbd: &tnapi->tx_ring[*entry], mapping: map,
7804 len, flags, mss, vlan);
7805 *budget -= 1;
7806 *entry = NEXT_TX(*entry);
7807 } else {
7808 hwbug = true;
7809 tnapi->tx_buffers[prvidx].fragmented = false;
7810 }
7811 }
7812 } else {
7813 tg3_tx_set_bd(txbd: &tnapi->tx_ring[*entry], mapping: map,
7814 len, flags, mss, vlan);
7815 *entry = NEXT_TX(*entry);
7816 }
7817
7818 return hwbug;
7819}
7820
7821static void tg3_tx_skb_unmap(struct tg3_napi *tnapi, u32 entry, int last)
7822{
7823 int i;
7824 struct sk_buff *skb;
7825 struct tg3_tx_ring_info *txb = &tnapi->tx_buffers[entry];
7826
7827 skb = txb->skb;
7828 txb->skb = NULL;
7829
7830 dma_unmap_single(&tnapi->tp->pdev->dev, dma_unmap_addr(txb, mapping),
7831 skb_headlen(skb), DMA_TO_DEVICE);
7832
7833 while (txb->fragmented) {
7834 txb->fragmented = false;
7835 entry = NEXT_TX(entry);
7836 txb = &tnapi->tx_buffers[entry];
7837 }
7838
7839 for (i = 0; i <= last; i++) {
7840 const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
7841
7842 entry = NEXT_TX(entry);
7843 txb = &tnapi->tx_buffers[entry];
7844
7845 dma_unmap_page(&tnapi->tp->pdev->dev,
7846 dma_unmap_addr(txb, mapping),
7847 skb_frag_size(frag), DMA_TO_DEVICE);
7848
7849 while (txb->fragmented) {
7850 txb->fragmented = false;
7851 entry = NEXT_TX(entry);
7852 txb = &tnapi->tx_buffers[entry];
7853 }
7854 }
7855}
7856
7857/* Workaround 4GB and 40-bit hardware DMA bugs. */
7858static int tigon3_dma_hwbug_workaround(struct tg3_napi *tnapi,
7859 struct sk_buff **pskb,
7860 u32 *entry, u32 *budget,
7861 u32 base_flags, u32 mss, u32 vlan)
7862{
7863 struct tg3 *tp = tnapi->tp;
7864 struct sk_buff *new_skb, *skb = *pskb;
7865 dma_addr_t new_addr = 0;
7866 int ret = 0;
7867
7868 if (tg3_asic_rev(tp) != ASIC_REV_5701)
7869 new_skb = skb_copy(skb, GFP_ATOMIC);
7870 else {
7871 int more_headroom = 4 - ((unsigned long)skb->data & 3);
7872
7873 new_skb = skb_copy_expand(skb,
7874 newheadroom: skb_headroom(skb) + more_headroom,
7875 newtailroom: skb_tailroom(skb), GFP_ATOMIC);
7876 }
7877
7878 if (!new_skb) {
7879 ret = -1;
7880 } else {
7881 /* New SKB is guaranteed to be linear. */
7882 new_addr = dma_map_single(&tp->pdev->dev, new_skb->data,
7883 new_skb->len, DMA_TO_DEVICE);
7884 /* Make sure the mapping succeeded */
7885 if (dma_mapping_error(dev: &tp->pdev->dev, dma_addr: new_addr)) {
7886 dev_kfree_skb_any(skb: new_skb);
7887 ret = -1;
7888 } else {
7889 u32 save_entry = *entry;
7890
7891 base_flags |= TXD_FLAG_END;
7892
7893 tnapi->tx_buffers[*entry].skb = new_skb;
7894 dma_unmap_addr_set(&tnapi->tx_buffers[*entry],
7895 mapping, new_addr);
7896
7897 if (tg3_tx_frag_set(tnapi, entry, budget, map: new_addr,
7898 len: new_skb->len, flags: base_flags,
7899 mss, vlan)) {
7900 tg3_tx_skb_unmap(tnapi, entry: save_entry, last: -1);
7901 dev_kfree_skb_any(skb: new_skb);
7902 ret = -1;
7903 }
7904 }
7905 }
7906
7907 dev_consume_skb_any(skb);
7908 *pskb = new_skb;
7909 return ret;
7910}
7911
7912static bool tg3_tso_bug_gso_check(struct tg3_napi *tnapi, struct sk_buff *skb)
7913{
7914 /* Check if we will never have enough descriptors,
7915 * as gso_segs can be more than current ring size
7916 */
7917 return skb_shinfo(skb)->gso_segs < tnapi->tx_pending / 3;
7918}
7919
7920static netdev_tx_t __tg3_start_xmit(struct sk_buff *, struct net_device *);
7921
7922/* Use GSO to workaround all TSO packets that meet HW bug conditions
7923 * indicated in tg3_tx_frag_set()
7924 */
7925static int tg3_tso_bug(struct tg3 *tp, struct tg3_napi *tnapi,
7926 struct netdev_queue *txq, struct sk_buff *skb)
7927{
7928 u32 frag_cnt_est = skb_shinfo(skb)->gso_segs * 3;
7929 struct sk_buff *segs, *seg, *next;
7930
7931 /* Estimate the number of fragments in the worst case */
7932 if (unlikely(tg3_tx_avail(tnapi) <= frag_cnt_est)) {
7933 netif_tx_stop_queue(dev_queue: txq);
7934
7935 /* netif_tx_stop_queue() must be done before checking
7936 * checking tx index in tg3_tx_avail() below, because in
7937 * tg3_tx(), we update tx index before checking for
7938 * netif_tx_queue_stopped().
7939 */
7940 smp_mb();
7941 if (tg3_tx_avail(tnapi) <= frag_cnt_est)
7942 return NETDEV_TX_BUSY;
7943
7944 netif_tx_wake_queue(dev_queue: txq);
7945 }
7946
7947 segs = skb_gso_segment(skb, features: tp->dev->features &
7948 ~(NETIF_F_TSO | NETIF_F_TSO6));
7949 if (IS_ERR(ptr: segs) || !segs) {
7950 tnapi->tx_dropped++;
7951 goto tg3_tso_bug_end;
7952 }
7953
7954 skb_list_walk_safe(segs, seg, next) {
7955 skb_mark_not_on_list(skb: seg);
7956 __tg3_start_xmit(seg, tp->dev);
7957 }
7958
7959tg3_tso_bug_end:
7960 dev_consume_skb_any(skb);
7961
7962 return NETDEV_TX_OK;
7963}
7964
7965/* hard_start_xmit for all devices */
7966static netdev_tx_t __tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
7967{
7968 struct tg3 *tp = netdev_priv(dev);
7969 u32 len, entry, base_flags, mss, vlan = 0;
7970 u32 budget;
7971 int i = -1, would_hit_hwbug;
7972 dma_addr_t mapping;
7973 struct tg3_napi *tnapi;
7974 struct netdev_queue *txq;
7975 unsigned int last;
7976 struct iphdr *iph = NULL;
7977 struct tcphdr *tcph = NULL;
7978 __sum16 tcp_csum = 0, ip_csum = 0;
7979 __be16 ip_tot_len = 0;
7980
7981 txq = netdev_get_tx_queue(dev, index: skb_get_queue_mapping(skb));
7982 tnapi = &tp->napi[skb_get_queue_mapping(skb)];
7983 if (tg3_flag(tp, ENABLE_TSS))
7984 tnapi++;
7985
7986 budget = tg3_tx_avail(tnapi);
7987
7988 /* We are running in BH disabled context with netif_tx_lock
7989 * and TX reclaim runs via tp->napi.poll inside of a software
7990 * interrupt. Furthermore, IRQ processing runs lockless so we have
7991 * no IRQ context deadlocks to worry about either. Rejoice!
7992 */
7993 if (unlikely(budget <= (skb_shinfo(skb)->nr_frags + 1))) {
7994 if (!netif_tx_queue_stopped(dev_queue: txq)) {
7995 netif_tx_stop_queue(dev_queue: txq);
7996
7997 /* This is a hard error, log it. */
7998 netdev_err(dev,
7999 format: "BUG! Tx Ring full when queue awake!\n");
8000 }
8001 return NETDEV_TX_BUSY;
8002 }
8003
8004 entry = tnapi->tx_prod;
8005 base_flags = 0;
8006
8007 mss = skb_shinfo(skb)->gso_size;
8008 if (mss) {
8009 u32 tcp_opt_len, hdr_len;
8010
8011 if (skb_cow_head(skb, headroom: 0))
8012 goto drop;
8013
8014 iph = ip_hdr(skb);
8015 tcp_opt_len = tcp_optlen(skb);
8016
8017 hdr_len = skb_tcp_all_headers(skb) - ETH_HLEN;
8018
8019 /* HW/FW can not correctly segment packets that have been
8020 * vlan encapsulated.
8021 */
8022 if (skb->protocol == htons(ETH_P_8021Q) ||
8023 skb->protocol == htons(ETH_P_8021AD)) {
8024 if (tg3_tso_bug_gso_check(tnapi, skb))
8025 return tg3_tso_bug(tp, tnapi, txq, skb);
8026 goto drop;
8027 }
8028
8029 if (!skb_is_gso_v6(skb)) {
8030 if (unlikely((ETH_HLEN + hdr_len) > 80) &&
8031 tg3_flag(tp, TSO_BUG)) {
8032 if (tg3_tso_bug_gso_check(tnapi, skb))
8033 return tg3_tso_bug(tp, tnapi, txq, skb);
8034 goto drop;
8035 }
8036 ip_csum = iph->check;
8037 ip_tot_len = iph->tot_len;
8038 iph->check = 0;
8039 iph->tot_len = htons(mss + hdr_len);
8040 }
8041
8042 base_flags |= (TXD_FLAG_CPU_PRE_DMA |
8043 TXD_FLAG_CPU_POST_DMA);
8044
8045 tcph = tcp_hdr(skb);
8046 tcp_csum = tcph->check;
8047
8048 if (tg3_flag(tp, HW_TSO_1) ||
8049 tg3_flag(tp, HW_TSO_2) ||
8050 tg3_flag(tp, HW_TSO_3)) {
8051 tcph->check = 0;
8052 base_flags &= ~TXD_FLAG_TCPUDP_CSUM;
8053 } else {
8054 tcph->check = ~csum_tcpudp_magic(saddr: iph->saddr, daddr: iph->daddr,
8055 len: 0, IPPROTO_TCP, sum: 0);
8056 }
8057
8058 if (tg3_flag(tp, HW_TSO_3)) {
8059 mss |= (hdr_len & 0xc) << 12;
8060 if (hdr_len & 0x10)
8061 base_flags |= 0x00000010;
8062 base_flags |= (hdr_len & 0x3e0) << 5;
8063 } else if (tg3_flag(tp, HW_TSO_2))
8064 mss |= hdr_len << 9;
8065 else if (tg3_flag(tp, HW_TSO_1) ||
8066 tg3_asic_rev(tp) == ASIC_REV_5705) {
8067 if (tcp_opt_len || iph->ihl > 5) {
8068 int tsflags;
8069
8070 tsflags = (iph->ihl - 5) + (tcp_opt_len >> 2);
8071 mss |= (tsflags << 11);
8072 }
8073 } else {
8074 if (tcp_opt_len || iph->ihl > 5) {
8075 int tsflags;
8076
8077 tsflags = (iph->ihl - 5) + (tcp_opt_len >> 2);
8078 base_flags |= tsflags << 12;
8079 }
8080 }
8081 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
8082 /* HW/FW can not correctly checksum packets that have been
8083 * vlan encapsulated.
8084 */
8085 if (skb->protocol == htons(ETH_P_8021Q) ||
8086 skb->protocol == htons(ETH_P_8021AD)) {
8087 if (skb_checksum_help(skb))
8088 goto drop;
8089 } else {
8090 base_flags |= TXD_FLAG_TCPUDP_CSUM;
8091 }
8092 }
8093
8094 if (tg3_flag(tp, USE_JUMBO_BDFLAG) &&
8095 !mss && skb->len > VLAN_ETH_FRAME_LEN)
8096 base_flags |= TXD_FLAG_JMB_PKT;
8097
8098 if (skb_vlan_tag_present(skb)) {
8099 base_flags |= TXD_FLAG_VLAN;
8100 vlan = skb_vlan_tag_get(skb);
8101 }
8102
8103 if ((unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)) &&
8104 tg3_flag(tp, TX_TSTAMP_EN)) {
8105 tg3_full_lock(tp, irq_sync: 0);
8106 if (!tp->pre_tx_ts) {
8107 skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
8108 base_flags |= TXD_FLAG_HWTSTAMP;
8109 tg3_read_tx_tstamp(tp, hwclock: &tp->pre_tx_ts);
8110 }
8111 tg3_full_unlock(tp);
8112 }
8113
8114 len = skb_headlen(skb);
8115
8116 mapping = dma_map_single(&tp->pdev->dev, skb->data, len,
8117 DMA_TO_DEVICE);
8118 if (dma_mapping_error(dev: &tp->pdev->dev, dma_addr: mapping))
8119 goto drop;
8120
8121
8122 tnapi->tx_buffers[entry].skb = skb;
8123 dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping, mapping);
8124
8125 would_hit_hwbug = 0;
8126
8127 if (tg3_flag(tp, 5701_DMA_BUG))
8128 would_hit_hwbug = 1;
8129
8130 if (tg3_tx_frag_set(tnapi, entry: &entry, budget: &budget, map: mapping, len, flags: base_flags |
8131 ((skb_shinfo(skb)->nr_frags == 0) ? TXD_FLAG_END : 0),
8132 mss, vlan)) {
8133 would_hit_hwbug = 1;
8134 } else if (skb_shinfo(skb)->nr_frags > 0) {
8135 u32 tmp_mss = mss;
8136
8137 if (!tg3_flag(tp, HW_TSO_1) &&
8138 !tg3_flag(tp, HW_TSO_2) &&
8139 !tg3_flag(tp, HW_TSO_3))
8140 tmp_mss = 0;
8141
8142 /* Now loop through additional data
8143 * fragments, and queue them.
8144 */
8145 last = skb_shinfo(skb)->nr_frags - 1;
8146 for (i = 0; i <= last; i++) {
8147 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
8148
8149 len = skb_frag_size(frag);
8150 mapping = skb_frag_dma_map(&tp->pdev->dev, frag, 0,
8151 len, DMA_TO_DEVICE);
8152
8153 tnapi->tx_buffers[entry].skb = NULL;
8154 dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping,
8155 mapping);
8156 if (dma_mapping_error(dev: &tp->pdev->dev, dma_addr: mapping))
8157 goto dma_error;
8158
8159 if (!budget ||
8160 tg3_tx_frag_set(tnapi, entry: &entry, budget: &budget, map: mapping,
8161 len, flags: base_flags |
8162 ((i == last) ? TXD_FLAG_END : 0),
8163 mss: tmp_mss, vlan)) {
8164 would_hit_hwbug = 1;
8165 break;
8166 }
8167 }
8168 }
8169
8170 if (would_hit_hwbug) {
8171 tg3_tx_skb_unmap(tnapi, entry: tnapi->tx_prod, last: i);
8172
8173 if (mss && tg3_tso_bug_gso_check(tnapi, skb)) {
8174 /* If it's a TSO packet, do GSO instead of
8175 * allocating and copying to a large linear SKB
8176 */
8177 if (ip_tot_len) {
8178 iph->check = ip_csum;
8179 iph->tot_len = ip_tot_len;
8180 }
8181 tcph->check = tcp_csum;
8182 return tg3_tso_bug(tp, tnapi, txq, skb);
8183 }
8184
8185 /* If the workaround fails due to memory/mapping
8186 * failure, silently drop this packet.
8187 */
8188 entry = tnapi->tx_prod;
8189 budget = tg3_tx_avail(tnapi);
8190 if (tigon3_dma_hwbug_workaround(tnapi, pskb: &skb, entry: &entry, budget: &budget,
8191 base_flags, mss, vlan))
8192 goto drop_nofree;
8193 }
8194
8195 skb_tx_timestamp(skb);
8196 netdev_tx_sent_queue(dev_queue: txq, bytes: skb->len);
8197
8198 /* Sync BD data before updating mailbox */
8199 wmb();
8200
8201 tnapi->tx_prod = entry;
8202 if (unlikely(tg3_tx_avail(tnapi) <= (MAX_SKB_FRAGS + 1))) {
8203 netif_tx_stop_queue(dev_queue: txq);
8204
8205 /* netif_tx_stop_queue() must be done before checking
8206 * checking tx index in tg3_tx_avail() below, because in
8207 * tg3_tx(), we update tx index before checking for
8208 * netif_tx_queue_stopped().
8209 */
8210 smp_mb();
8211 if (tg3_tx_avail(tnapi) > TG3_TX_WAKEUP_THRESH(tnapi))
8212 netif_tx_wake_queue(dev_queue: txq);
8213 }
8214
8215 return NETDEV_TX_OK;
8216
8217dma_error:
8218 tg3_tx_skb_unmap(tnapi, entry: tnapi->tx_prod, last: --i);
8219 tnapi->tx_buffers[tnapi->tx_prod].skb = NULL;
8220drop:
8221 dev_kfree_skb_any(skb);
8222drop_nofree:
8223 tnapi->tx_dropped++;
8224 return NETDEV_TX_OK;
8225}
8226
8227static netdev_tx_t tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
8228{
8229 struct netdev_queue *txq;
8230 u16 skb_queue_mapping;
8231 netdev_tx_t ret;
8232
8233 skb_queue_mapping = skb_get_queue_mapping(skb);
8234 txq = netdev_get_tx_queue(dev, index: skb_queue_mapping);
8235
8236 ret = __tg3_start_xmit(skb, dev);
8237
8238 /* Notify the hardware that packets are ready by updating the TX ring
8239 * tail pointer. We respect netdev_xmit_more() thus avoiding poking
8240 * the hardware for every packet. To guarantee forward progress the TX
8241 * ring must be drained when it is full as indicated by
8242 * netif_xmit_stopped(). This needs to happen even when the current
8243 * skb was dropped or rejected with NETDEV_TX_BUSY. Otherwise packets
8244 * queued by previous __tg3_start_xmit() calls might get stuck in
8245 * the queue forever.
8246 */
8247 if (!netdev_xmit_more() || netif_xmit_stopped(dev_queue: txq)) {
8248 struct tg3_napi *tnapi;
8249 struct tg3 *tp;
8250
8251 tp = netdev_priv(dev);
8252 tnapi = &tp->napi[skb_queue_mapping];
8253
8254 if (tg3_flag(tp, ENABLE_TSS))
8255 tnapi++;
8256
8257 tw32_tx_mbox(tnapi->prodmbox, tnapi->tx_prod);
8258 }
8259
8260 return ret;
8261}
8262
8263static void tg3_mac_loopback(struct tg3 *tp, bool enable)
8264{
8265 if (enable) {
8266 tp->mac_mode &= ~(MAC_MODE_HALF_DUPLEX |
8267 MAC_MODE_PORT_MODE_MASK);
8268
8269 tp->mac_mode |= MAC_MODE_PORT_INT_LPBACK;
8270
8271 if (!tg3_flag(tp, 5705_PLUS))
8272 tp->mac_mode |= MAC_MODE_LINK_POLARITY;
8273
8274 if (tp->phy_flags & TG3_PHYFLG_10_100_ONLY)
8275 tp->mac_mode |= MAC_MODE_PORT_MODE_MII;
8276 else
8277 tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
8278 } else {
8279 tp->mac_mode &= ~MAC_MODE_PORT_INT_LPBACK;
8280
8281 if (tg3_flag(tp, 5705_PLUS) ||
8282 (tp->phy_flags & TG3_PHYFLG_PHY_SERDES) ||
8283 tg3_asic_rev(tp) == ASIC_REV_5700)
8284 tp->mac_mode &= ~MAC_MODE_LINK_POLARITY;
8285 }
8286
8287 tw32(MAC_MODE, tp->mac_mode);
8288 udelay(usec: 40);
8289}
8290
8291static int tg3_phy_lpbk_set(struct tg3 *tp, u32 speed, bool extlpbk)
8292{
8293 u32 val, bmcr, mac_mode, ptest = 0;
8294
8295 tg3_phy_toggle_apd(tp, enable: false);
8296 tg3_phy_toggle_automdix(tp, enable: false);
8297
8298 if (extlpbk && tg3_phy_set_extloopbk(tp))
8299 return -EIO;
8300
8301 bmcr = BMCR_FULLDPLX;
8302 switch (speed) {
8303 case SPEED_10:
8304 break;
8305 case SPEED_100:
8306 bmcr |= BMCR_SPEED100;
8307 break;
8308 case SPEED_1000:
8309 default:
8310 if (tp->phy_flags & TG3_PHYFLG_IS_FET) {
8311 speed = SPEED_100;
8312 bmcr |= BMCR_SPEED100;
8313 } else {
8314 speed = SPEED_1000;
8315 bmcr |= BMCR_SPEED1000;
8316 }
8317 }
8318
8319 if (extlpbk) {
8320 if (!(tp->phy_flags & TG3_PHYFLG_IS_FET)) {
8321 tg3_readphy(tp, MII_CTRL1000, val: &val);
8322 val |= CTL1000_AS_MASTER |
8323 CTL1000_ENABLE_MASTER;
8324 tg3_writephy(tp, MII_CTRL1000, val);
8325 } else {
8326 ptest = MII_TG3_FET_PTEST_TRIM_SEL |
8327 MII_TG3_FET_PTEST_TRIM_2;
8328 tg3_writephy(tp, MII_TG3_FET_PTEST, val: ptest);
8329 }
8330 } else
8331 bmcr |= BMCR_LOOPBACK;
8332
8333 tg3_writephy(tp, MII_BMCR, val: bmcr);
8334
8335 /* The write needs to be flushed for the FETs */
8336 if (tp->phy_flags & TG3_PHYFLG_IS_FET)
8337 tg3_readphy(tp, MII_BMCR, val: &bmcr);
8338
8339 udelay(usec: 40);
8340
8341 if ((tp->phy_flags & TG3_PHYFLG_IS_FET) &&
8342 tg3_asic_rev(tp) == ASIC_REV_5785) {
8343 tg3_writephy(tp, MII_TG3_FET_PTEST, val: ptest |
8344 MII_TG3_FET_PTEST_FRC_TX_LINK |
8345 MII_TG3_FET_PTEST_FRC_TX_LOCK);
8346
8347 /* The write needs to be flushed for the AC131 */
8348 tg3_readphy(tp, MII_TG3_FET_PTEST, val: &val);
8349 }
8350
8351 /* Reset to prevent losing 1st rx packet intermittently */
8352 if ((tp->phy_flags & TG3_PHYFLG_MII_SERDES) &&
8353 tg3_flag(tp, 5780_CLASS)) {
8354 tw32_f(MAC_RX_MODE, RX_MODE_RESET);
8355 udelay(usec: 10);
8356 tw32_f(MAC_RX_MODE, tp->rx_mode);
8357 }
8358
8359 mac_mode = tp->mac_mode &
8360 ~(MAC_MODE_PORT_MODE_MASK | MAC_MODE_HALF_DUPLEX);
8361 if (speed == SPEED_1000)
8362 mac_mode |= MAC_MODE_PORT_MODE_GMII;
8363 else
8364 mac_mode |= MAC_MODE_PORT_MODE_MII;
8365
8366 if (tg3_asic_rev(tp) == ASIC_REV_5700) {
8367 u32 masked_phy_id = tp->phy_id & TG3_PHY_ID_MASK;
8368
8369 if (masked_phy_id == TG3_PHY_ID_BCM5401)
8370 mac_mode &= ~MAC_MODE_LINK_POLARITY;
8371 else if (masked_phy_id == TG3_PHY_ID_BCM5411)
8372 mac_mode |= MAC_MODE_LINK_POLARITY;
8373
8374 tg3_writephy(tp, MII_TG3_EXT_CTRL,
8375 MII_TG3_EXT_CTRL_LNK3_LED_MODE);
8376 }
8377
8378 tw32(MAC_MODE, mac_mode);
8379 udelay(usec: 40);
8380
8381 return 0;
8382}
8383
8384static void tg3_set_loopback(struct net_device *dev, netdev_features_t features)
8385{
8386 struct tg3 *tp = netdev_priv(dev);
8387
8388 if (features & NETIF_F_LOOPBACK) {
8389 if (tp->mac_mode & MAC_MODE_PORT_INT_LPBACK)
8390 return;
8391
8392 spin_lock_bh(lock: &tp->lock);
8393 tg3_mac_loopback(tp, enable: true);
8394 netif_carrier_on(dev: tp->dev);
8395 spin_unlock_bh(lock: &tp->lock);
8396 netdev_info(dev, format: "Internal MAC loopback mode enabled.\n");
8397 } else {
8398 if (!(tp->mac_mode & MAC_MODE_PORT_INT_LPBACK))
8399 return;
8400
8401 spin_lock_bh(lock: &tp->lock);
8402 tg3_mac_loopback(tp, enable: false);
8403 /* Force link status check */
8404 tg3_setup_phy(tp, force_reset: true);
8405 spin_unlock_bh(lock: &tp->lock);
8406 netdev_info(dev, format: "Internal MAC loopback mode disabled.\n");
8407 }
8408}
8409
8410static netdev_features_t tg3_fix_features(struct net_device *dev,
8411 netdev_features_t features)
8412{
8413 struct tg3 *tp = netdev_priv(dev);
8414
8415 if (dev->mtu > ETH_DATA_LEN && tg3_flag(tp, 5780_CLASS))
8416 features &= ~NETIF_F_ALL_TSO;
8417
8418 return features;
8419}
8420
8421static int tg3_set_features(struct net_device *dev, netdev_features_t features)
8422{
8423 netdev_features_t changed = dev->features ^ features;
8424
8425 if ((changed & NETIF_F_LOOPBACK) && netif_running(dev))
8426 tg3_set_loopback(dev, features);
8427
8428 return 0;
8429}
8430
8431static void tg3_rx_prodring_free(struct tg3 *tp,
8432 struct tg3_rx_prodring_set *tpr)
8433{
8434 int i;
8435
8436 if (tpr != &tp->napi[0].prodring) {
8437 for (i = tpr->rx_std_cons_idx; i != tpr->rx_std_prod_idx;
8438 i = (i + 1) & tp->rx_std_ring_mask)
8439 tg3_rx_data_free(tp, ri: &tpr->rx_std_buffers[i],
8440 map_sz: tp->rx_pkt_map_sz);
8441
8442 if (tg3_flag(tp, JUMBO_CAPABLE)) {
8443 for (i = tpr->rx_jmb_cons_idx;
8444 i != tpr->rx_jmb_prod_idx;
8445 i = (i + 1) & tp->rx_jmb_ring_mask) {
8446 tg3_rx_data_free(tp, ri: &tpr->rx_jmb_buffers[i],
8447 TG3_RX_JMB_MAP_SZ);
8448 }
8449 }
8450
8451 return;
8452 }
8453
8454 for (i = 0; i <= tp->rx_std_ring_mask; i++)
8455 tg3_rx_data_free(tp, ri: &tpr->rx_std_buffers[i],
8456 map_sz: tp->rx_pkt_map_sz);
8457
8458 if (tg3_flag(tp, JUMBO_CAPABLE) && !tg3_flag(tp, 5780_CLASS)) {
8459 for (i = 0; i <= tp->rx_jmb_ring_mask; i++)
8460 tg3_rx_data_free(tp, ri: &tpr->rx_jmb_buffers[i],
8461 TG3_RX_JMB_MAP_SZ);
8462 }
8463}
8464
8465/* Initialize rx rings for packet processing.
8466 *
8467 * The chip has been shut down and the driver detached from
8468 * the networking, so no interrupts or new tx packets will
8469 * end up in the driver. tp->{tx,}lock are held and thus
8470 * we may not sleep.
8471 */
8472static int tg3_rx_prodring_alloc(struct tg3 *tp,
8473 struct tg3_rx_prodring_set *tpr)
8474{
8475 u32 i, rx_pkt_dma_sz;
8476
8477 tpr->rx_std_cons_idx = 0;
8478 tpr->rx_std_prod_idx = 0;
8479 tpr->rx_jmb_cons_idx = 0;
8480 tpr->rx_jmb_prod_idx = 0;
8481
8482 if (tpr != &tp->napi[0].prodring) {
8483 memset(s: &tpr->rx_std_buffers[0], c: 0,
8484 TG3_RX_STD_BUFF_RING_SIZE(tp));
8485 if (tpr->rx_jmb_buffers)
8486 memset(s: &tpr->rx_jmb_buffers[0], c: 0,
8487 TG3_RX_JMB_BUFF_RING_SIZE(tp));
8488 goto done;
8489 }
8490
8491 /* Zero out all descriptors. */
8492 memset(s: tpr->rx_std, c: 0, TG3_RX_STD_RING_BYTES(tp));
8493
8494 rx_pkt_dma_sz = TG3_RX_STD_DMA_SZ;
8495 if (tg3_flag(tp, 5780_CLASS) &&
8496 tp->dev->mtu > ETH_DATA_LEN)
8497 rx_pkt_dma_sz = TG3_RX_JMB_DMA_SZ;
8498 tp->rx_pkt_map_sz = TG3_RX_DMA_TO_MAP_SZ(rx_pkt_dma_sz);
8499
8500 /* Initialize invariants of the rings, we only set this
8501 * stuff once. This works because the card does not
8502 * write into the rx buffer posting rings.
8503 */
8504 for (i = 0; i <= tp->rx_std_ring_mask; i++) {
8505 struct tg3_rx_buffer_desc *rxd;
8506
8507 rxd = &tpr->rx_std[i];
8508 rxd->idx_len = rx_pkt_dma_sz << RXD_LEN_SHIFT;
8509 rxd->type_flags = (RXD_FLAG_END << RXD_FLAGS_SHIFT);
8510 rxd->opaque = (RXD_OPAQUE_RING_STD |
8511 (i << RXD_OPAQUE_INDEX_SHIFT));
8512 }
8513
8514 /* Now allocate fresh SKBs for each rx ring. */
8515 for (i = 0; i < tp->rx_pending; i++) {
8516 unsigned int frag_size;
8517
8518 if (tg3_alloc_rx_data(tp, tpr, RXD_OPAQUE_RING_STD, dest_idx_unmasked: i,
8519 frag_size: &frag_size) < 0) {
8520 netdev_warn(dev: tp->dev,
8521 format: "Using a smaller RX standard ring. Only "
8522 "%d out of %d buffers were allocated "
8523 "successfully\n", i, tp->rx_pending);
8524 if (i == 0)
8525 goto initfail;
8526 tp->rx_pending = i;
8527 break;
8528 }
8529 }
8530
8531 if (!tg3_flag(tp, JUMBO_CAPABLE) || tg3_flag(tp, 5780_CLASS))
8532 goto done;
8533
8534 memset(s: tpr->rx_jmb, c: 0, TG3_RX_JMB_RING_BYTES(tp));
8535
8536 if (!tg3_flag(tp, JUMBO_RING_ENABLE))
8537 goto done;
8538
8539 for (i = 0; i <= tp->rx_jmb_ring_mask; i++) {
8540 struct tg3_rx_buffer_desc *rxd;
8541
8542 rxd = &tpr->rx_jmb[i].std;
8543 rxd->idx_len = TG3_RX_JMB_DMA_SZ << RXD_LEN_SHIFT;
8544 rxd->type_flags = (RXD_FLAG_END << RXD_FLAGS_SHIFT) |
8545 RXD_FLAG_JUMBO;
8546 rxd->opaque = (RXD_OPAQUE_RING_JUMBO |
8547 (i << RXD_OPAQUE_INDEX_SHIFT));
8548 }
8549
8550 for (i = 0; i < tp->rx_jumbo_pending; i++) {
8551 unsigned int frag_size;
8552
8553 if (tg3_alloc_rx_data(tp, tpr, RXD_OPAQUE_RING_JUMBO, dest_idx_unmasked: i,
8554 frag_size: &frag_size) < 0) {
8555 netdev_warn(dev: tp->dev,
8556 format: "Using a smaller RX jumbo ring. Only %d "
8557 "out of %d buffers were allocated "
8558 "successfully\n", i, tp->rx_jumbo_pending);
8559 if (i == 0)
8560 goto initfail;
8561 tp->rx_jumbo_pending = i;
8562 break;
8563 }
8564 }
8565
8566done:
8567 return 0;
8568
8569initfail:
8570 tg3_rx_prodring_free(tp, tpr);
8571 return -ENOMEM;
8572}
8573
8574static void tg3_rx_prodring_fini(struct tg3 *tp,
8575 struct tg3_rx_prodring_set *tpr)
8576{
8577 kfree(objp: tpr->rx_std_buffers);
8578 tpr->rx_std_buffers = NULL;
8579 kfree(objp: tpr->rx_jmb_buffers);
8580 tpr->rx_jmb_buffers = NULL;
8581 if (tpr->rx_std) {
8582 dma_free_coherent(dev: &tp->pdev->dev, TG3_RX_STD_RING_BYTES(tp),
8583 cpu_addr: tpr->rx_std, dma_handle: tpr->rx_std_mapping);
8584 tpr->rx_std = NULL;
8585 }
8586 if (tpr->rx_jmb) {
8587 dma_free_coherent(dev: &tp->pdev->dev, TG3_RX_JMB_RING_BYTES(tp),
8588 cpu_addr: tpr->rx_jmb, dma_handle: tpr->rx_jmb_mapping);
8589 tpr->rx_jmb = NULL;
8590 }
8591}
8592
8593static int tg3_rx_prodring_init(struct tg3 *tp,
8594 struct tg3_rx_prodring_set *tpr)
8595{
8596 tpr->rx_std_buffers = kzalloc(TG3_RX_STD_BUFF_RING_SIZE(tp),
8597 GFP_KERNEL);
8598 if (!tpr->rx_std_buffers)
8599 return -ENOMEM;
8600
8601 tpr->rx_std = dma_alloc_coherent(dev: &tp->pdev->dev,
8602 TG3_RX_STD_RING_BYTES(tp),
8603 dma_handle: &tpr->rx_std_mapping,
8604 GFP_KERNEL);
8605 if (!tpr->rx_std)
8606 goto err_out;
8607
8608 if (tg3_flag(tp, JUMBO_CAPABLE) && !tg3_flag(tp, 5780_CLASS)) {
8609 tpr->rx_jmb_buffers = kzalloc(TG3_RX_JMB_BUFF_RING_SIZE(tp),
8610 GFP_KERNEL);
8611 if (!tpr->rx_jmb_buffers)
8612 goto err_out;
8613
8614 tpr->rx_jmb = dma_alloc_coherent(dev: &tp->pdev->dev,
8615 TG3_RX_JMB_RING_BYTES(tp),
8616 dma_handle: &tpr->rx_jmb_mapping,
8617 GFP_KERNEL);
8618 if (!tpr->rx_jmb)
8619 goto err_out;
8620 }
8621
8622 return 0;
8623
8624err_out:
8625 tg3_rx_prodring_fini(tp, tpr);
8626 return -ENOMEM;
8627}
8628
8629/* Free up pending packets in all rx/tx rings.
8630 *
8631 * The chip has been shut down and the driver detached from
8632 * the networking, so no interrupts or new tx packets will
8633 * end up in the driver. tp->{tx,}lock is not held and we are not
8634 * in an interrupt context and thus may sleep.
8635 */
8636static void tg3_free_rings(struct tg3 *tp)
8637{
8638 int i, j;
8639
8640 for (j = 0; j < tp->irq_cnt; j++) {
8641 struct tg3_napi *tnapi = &tp->napi[j];
8642
8643 tg3_rx_prodring_free(tp, tpr: &tnapi->prodring);
8644
8645 if (!tnapi->tx_buffers)
8646 continue;
8647
8648 for (i = 0; i < TG3_TX_RING_SIZE; i++) {
8649 struct sk_buff *skb = tnapi->tx_buffers[i].skb;
8650
8651 if (!skb)
8652 continue;
8653
8654 tg3_tx_skb_unmap(tnapi, entry: i,
8655 skb_shinfo(skb)->nr_frags - 1);
8656
8657 dev_consume_skb_any(skb);
8658 }
8659 netdev_tx_reset_queue(q: netdev_get_tx_queue(dev: tp->dev, index: j));
8660 }
8661}
8662
8663/* Initialize tx/rx rings for packet processing.
8664 *
8665 * The chip has been shut down and the driver detached from
8666 * the networking, so no interrupts or new tx packets will
8667 * end up in the driver. tp->{tx,}lock are held and thus
8668 * we may not sleep.
8669 */
8670static int tg3_init_rings(struct tg3 *tp)
8671{
8672 int i;
8673
8674 /* Free up all the SKBs. */
8675 tg3_free_rings(tp);
8676
8677 for (i = 0; i < tp->irq_cnt; i++) {
8678 struct tg3_napi *tnapi = &tp->napi[i];
8679
8680 tnapi->last_tag = 0;
8681 tnapi->last_irq_tag = 0;
8682 tnapi->hw_status->status = 0;
8683 tnapi->hw_status->status_tag = 0;
8684 memset(s: tnapi->hw_status, c: 0, TG3_HW_STATUS_SIZE);
8685
8686 tnapi->tx_prod = 0;
8687 tnapi->tx_cons = 0;
8688 if (tnapi->tx_ring)
8689 memset(s: tnapi->tx_ring, c: 0, TG3_TX_RING_BYTES);
8690
8691 tnapi->rx_rcb_ptr = 0;
8692 if (tnapi->rx_rcb)
8693 memset(s: tnapi->rx_rcb, c: 0, TG3_RX_RCB_RING_BYTES(tp));
8694
8695 if (tnapi->prodring.rx_std &&
8696 tg3_rx_prodring_alloc(tp, tpr: &tnapi->prodring)) {
8697 tg3_free_rings(tp);
8698 return -ENOMEM;
8699 }
8700 }
8701
8702 return 0;
8703}
8704
8705static void tg3_mem_tx_release(struct tg3 *tp)
8706{
8707 int i;
8708
8709 for (i = 0; i < tp->irq_max; i++) {
8710 struct tg3_napi *tnapi = &tp->napi[i];
8711
8712 if (tnapi->tx_ring) {
8713 dma_free_coherent(dev: &tp->pdev->dev, TG3_TX_RING_BYTES,
8714 cpu_addr: tnapi->tx_ring, dma_handle: tnapi->tx_desc_mapping);
8715 tnapi->tx_ring = NULL;
8716 }
8717
8718 kfree(objp: tnapi->tx_buffers);
8719 tnapi->tx_buffers = NULL;
8720 }
8721}
8722
8723static int tg3_mem_tx_acquire(struct tg3 *tp)
8724{
8725 int i;
8726 struct tg3_napi *tnapi = &tp->napi[0];
8727
8728 /* If multivector TSS is enabled, vector 0 does not handle
8729 * tx interrupts. Don't allocate any resources for it.
8730 */
8731 if (tg3_flag(tp, ENABLE_TSS))
8732 tnapi++;
8733
8734 for (i = 0; i < tp->txq_cnt; i++, tnapi++) {
8735 tnapi->tx_buffers = kcalloc(TG3_TX_RING_SIZE,
8736 sizeof(struct tg3_tx_ring_info),
8737 GFP_KERNEL);
8738 if (!tnapi->tx_buffers)
8739 goto err_out;
8740
8741 tnapi->tx_ring = dma_alloc_coherent(dev: &tp->pdev->dev,
8742 TG3_TX_RING_BYTES,
8743 dma_handle: &tnapi->tx_desc_mapping,
8744 GFP_KERNEL);
8745 if (!tnapi->tx_ring)
8746 goto err_out;
8747 }
8748
8749 return 0;
8750
8751err_out:
8752 tg3_mem_tx_release(tp);
8753 return -ENOMEM;
8754}
8755
8756static void tg3_mem_rx_release(struct tg3 *tp)
8757{
8758 int i;
8759
8760 for (i = 0; i < tp->irq_max; i++) {
8761 struct tg3_napi *tnapi = &tp->napi[i];
8762
8763 tg3_rx_prodring_fini(tp, tpr: &tnapi->prodring);
8764
8765 if (!tnapi->rx_rcb)
8766 continue;
8767
8768 dma_free_coherent(dev: &tp->pdev->dev,
8769 TG3_RX_RCB_RING_BYTES(tp),
8770 cpu_addr: tnapi->rx_rcb,
8771 dma_handle: tnapi->rx_rcb_mapping);
8772 tnapi->rx_rcb = NULL;
8773 }
8774}
8775
8776static int tg3_mem_rx_acquire(struct tg3 *tp)
8777{
8778 unsigned int i, limit;
8779
8780 limit = tp->rxq_cnt;
8781
8782 /* If RSS is enabled, we need a (dummy) producer ring
8783 * set on vector zero. This is the true hw prodring.
8784 */
8785 if (tg3_flag(tp, ENABLE_RSS))
8786 limit++;
8787
8788 for (i = 0; i < limit; i++) {
8789 struct tg3_napi *tnapi = &tp->napi[i];
8790
8791 if (tg3_rx_prodring_init(tp, tpr: &tnapi->prodring))
8792 goto err_out;
8793
8794 /* If multivector RSS is enabled, vector 0
8795 * does not handle rx or tx interrupts.
8796 * Don't allocate any resources for it.
8797 */
8798 if (!i && tg3_flag(tp, ENABLE_RSS))
8799 continue;
8800
8801 tnapi->rx_rcb = dma_alloc_coherent(dev: &tp->pdev->dev,
8802 TG3_RX_RCB_RING_BYTES(tp),
8803 dma_handle: &tnapi->rx_rcb_mapping,
8804 GFP_KERNEL);
8805 if (!tnapi->rx_rcb)
8806 goto err_out;
8807 }
8808
8809 return 0;
8810
8811err_out:
8812 tg3_mem_rx_release(tp);
8813 return -ENOMEM;
8814}
8815
8816/*
8817 * Must not be invoked with interrupt sources disabled and
8818 * the hardware shutdown down.
8819 */
8820static void tg3_free_consistent(struct tg3 *tp)
8821{
8822 int i;
8823
8824 for (i = 0; i < tp->irq_cnt; i++) {
8825 struct tg3_napi *tnapi = &tp->napi[i];
8826
8827 if (tnapi->hw_status) {
8828 dma_free_coherent(dev: &tp->pdev->dev, TG3_HW_STATUS_SIZE,
8829 cpu_addr: tnapi->hw_status,
8830 dma_handle: tnapi->status_mapping);
8831 tnapi->hw_status = NULL;
8832 }
8833 }
8834
8835 tg3_mem_rx_release(tp);
8836 tg3_mem_tx_release(tp);
8837
8838 /* tp->hw_stats can be referenced safely:
8839 * 1. under rtnl_lock
8840 * 2. or under tp->lock if TG3_FLAG_INIT_COMPLETE is set.
8841 */
8842 if (tp->hw_stats) {
8843 dma_free_coherent(dev: &tp->pdev->dev, size: sizeof(struct tg3_hw_stats),
8844 cpu_addr: tp->hw_stats, dma_handle: tp->stats_mapping);
8845 tp->hw_stats = NULL;
8846 }
8847}
8848
8849/*
8850 * Must not be invoked with interrupt sources disabled and
8851 * the hardware shutdown down. Can sleep.
8852 */
8853static int tg3_alloc_consistent(struct tg3 *tp)
8854{
8855 int i;
8856
8857 tp->hw_stats = dma_alloc_coherent(dev: &tp->pdev->dev,
8858 size: sizeof(struct tg3_hw_stats),
8859 dma_handle: &tp->stats_mapping, GFP_KERNEL);
8860 if (!tp->hw_stats)
8861 goto err_out;
8862
8863 for (i = 0; i < tp->irq_cnt; i++) {
8864 struct tg3_napi *tnapi = &tp->napi[i];
8865 struct tg3_hw_status *sblk;
8866
8867 tnapi->hw_status = dma_alloc_coherent(dev: &tp->pdev->dev,
8868 TG3_HW_STATUS_SIZE,
8869 dma_handle: &tnapi->status_mapping,
8870 GFP_KERNEL);
8871 if (!tnapi->hw_status)
8872 goto err_out;
8873
8874 sblk = tnapi->hw_status;
8875
8876 if (tg3_flag(tp, ENABLE_RSS)) {
8877 u16 *prodptr = NULL;
8878
8879 /*
8880 * When RSS is enabled, the status block format changes
8881 * slightly. The "rx_jumbo_consumer", "reserved",
8882 * and "rx_mini_consumer" members get mapped to the
8883 * other three rx return ring producer indexes.
8884 */
8885 switch (i) {
8886 case 1:
8887 prodptr = &sblk->idx[0].rx_producer;
8888 break;
8889 case 2:
8890 prodptr = &sblk->rx_jumbo_consumer;
8891 break;
8892 case 3:
8893 prodptr = &sblk->reserved;
8894 break;
8895 case 4:
8896 prodptr = &sblk->rx_mini_consumer;
8897 break;
8898 }
8899 tnapi->rx_rcb_prod_idx = prodptr;
8900 } else {
8901 tnapi->rx_rcb_prod_idx = &sblk->idx[0].rx_producer;
8902 }
8903 }
8904
8905 if (tg3_mem_tx_acquire(tp) || tg3_mem_rx_acquire(tp))
8906 goto err_out;
8907
8908 return 0;
8909
8910err_out:
8911 tg3_free_consistent(tp);
8912 return -ENOMEM;
8913}
8914
8915#define MAX_WAIT_CNT 1000
8916
8917/* To stop a block, clear the enable bit and poll till it
8918 * clears. tp->lock is held.
8919 */
8920static int tg3_stop_block(struct tg3 *tp, unsigned long ofs, u32 enable_bit, bool silent)
8921{
8922 unsigned int i;
8923 u32 val;
8924
8925 if (tg3_flag(tp, 5705_PLUS)) {
8926 switch (ofs) {
8927 case RCVLSC_MODE:
8928 case DMAC_MODE:
8929 case MBFREE_MODE:
8930 case BUFMGR_MODE:
8931 case MEMARB_MODE:
8932 /* We can't enable/disable these bits of the
8933 * 5705/5750, just say success.
8934 */
8935 return 0;
8936
8937 default:
8938 break;
8939 }
8940 }
8941
8942 val = tr32(ofs);
8943 val &= ~enable_bit;
8944 tw32_f(ofs, val);
8945
8946 for (i = 0; i < MAX_WAIT_CNT; i++) {
8947 if (pci_channel_offline(pdev: tp->pdev)) {
8948 dev_err(&tp->pdev->dev,
8949 "tg3_stop_block device offline, "
8950 "ofs=%lx enable_bit=%x\n",
8951 ofs, enable_bit);
8952 return -ENODEV;
8953 }
8954
8955 udelay(usec: 100);
8956 val = tr32(ofs);
8957 if ((val & enable_bit) == 0)
8958 break;
8959 }
8960
8961 if (i == MAX_WAIT_CNT && !silent) {
8962 dev_err(&tp->pdev->dev,
8963 "tg3_stop_block timed out, ofs=%lx enable_bit=%x\n",
8964 ofs, enable_bit);
8965 return -ENODEV;
8966 }
8967
8968 return 0;
8969}
8970
8971/* tp->lock is held. */
8972static int tg3_abort_hw(struct tg3 *tp, bool silent)
8973{
8974 int i, err;
8975
8976 tg3_disable_ints(tp);
8977
8978 if (pci_channel_offline(pdev: tp->pdev)) {
8979 tp->rx_mode &= ~(RX_MODE_ENABLE | TX_MODE_ENABLE);
8980 tp->mac_mode &= ~MAC_MODE_TDE_ENABLE;
8981 err = -ENODEV;
8982 goto err_no_dev;
8983 }
8984
8985 tp->rx_mode &= ~RX_MODE_ENABLE;
8986 tw32_f(MAC_RX_MODE, tp->rx_mode);
8987 udelay(usec: 10);
8988
8989 err = tg3_stop_block(tp, RCVBDI_MODE, RCVBDI_MODE_ENABLE, silent);
8990 err |= tg3_stop_block(tp, RCVLPC_MODE, RCVLPC_MODE_ENABLE, silent);
8991 err |= tg3_stop_block(tp, RCVLSC_MODE, RCVLSC_MODE_ENABLE, silent);
8992 err |= tg3_stop_block(tp, RCVDBDI_MODE, RCVDBDI_MODE_ENABLE, silent);
8993 err |= tg3_stop_block(tp, RCVDCC_MODE, RCVDCC_MODE_ENABLE, silent);
8994 err |= tg3_stop_block(tp, RCVCC_MODE, RCVCC_MODE_ENABLE, silent);
8995
8996 err |= tg3_stop_block(tp, SNDBDS_MODE, SNDBDS_MODE_ENABLE, silent);
8997 err |= tg3_stop_block(tp, SNDBDI_MODE, SNDBDI_MODE_ENABLE, silent);
8998 err |= tg3_stop_block(tp, SNDDATAI_MODE, SNDDATAI_MODE_ENABLE, silent);
8999 err |= tg3_stop_block(tp, RDMAC_MODE, RDMAC_MODE_ENABLE, silent);
9000 err |= tg3_stop_block(tp, SNDDATAC_MODE, SNDDATAC_MODE_ENABLE, silent);
9001 err |= tg3_stop_block(tp, DMAC_MODE, DMAC_MODE_ENABLE, silent);
9002 err |= tg3_stop_block(tp, SNDBDC_MODE, SNDBDC_MODE_ENABLE, silent);
9003
9004 tp->mac_mode &= ~MAC_MODE_TDE_ENABLE;
9005 tw32_f(MAC_MODE, tp->mac_mode);
9006 udelay(usec: 40);
9007
9008 tp->tx_mode &= ~TX_MODE_ENABLE;
9009 tw32_f(MAC_TX_MODE, tp->tx_mode);
9010
9011 for (i = 0; i < MAX_WAIT_CNT; i++) {
9012 udelay(usec: 100);
9013 if (!(tr32(MAC_TX_MODE) & TX_MODE_ENABLE))
9014 break;
9015 }
9016 if (i >= MAX_WAIT_CNT) {
9017 dev_err(&tp->pdev->dev,
9018 "%s timed out, TX_MODE_ENABLE will not clear "
9019 "MAC_TX_MODE=%08x\n", __func__, tr32(MAC_TX_MODE));
9020 err |= -ENODEV;
9021 }
9022
9023 err |= tg3_stop_block(tp, HOSTCC_MODE, HOSTCC_MODE_ENABLE, silent);
9024 err |= tg3_stop_block(tp, WDMAC_MODE, WDMAC_MODE_ENABLE, silent);
9025 err |= tg3_stop_block(tp, MBFREE_MODE, MBFREE_MODE_ENABLE, silent);
9026
9027 tw32(FTQ_RESET, 0xffffffff);
9028 tw32(FTQ_RESET, 0x00000000);
9029
9030 err |= tg3_stop_block(tp, BUFMGR_MODE, BUFMGR_MODE_ENABLE, silent);
9031 err |= tg3_stop_block(tp, MEMARB_MODE, MEMARB_MODE_ENABLE, silent);
9032
9033err_no_dev:
9034 for (i = 0; i < tp->irq_cnt; i++) {
9035 struct tg3_napi *tnapi = &tp->napi[i];
9036 if (tnapi->hw_status)
9037 memset(s: tnapi->hw_status, c: 0, TG3_HW_STATUS_SIZE);
9038 }
9039
9040 return err;
9041}
9042
9043/* Save PCI command register before chip reset */
9044static void tg3_save_pci_state(struct tg3 *tp)
9045{
9046 pci_read_config_word(dev: tp->pdev, PCI_COMMAND, val: &tp->pci_cmd);
9047}
9048
9049/* Restore PCI state after chip reset */
9050static void tg3_restore_pci_state(struct tg3 *tp)
9051{
9052 u32 val;
9053
9054 /* Re-enable indirect register accesses. */
9055 pci_write_config_dword(dev: tp->pdev, TG3PCI_MISC_HOST_CTRL,
9056 val: tp->misc_host_ctrl);
9057
9058 /* Set MAX PCI retry to zero. */
9059 val = (PCISTATE_ROM_ENABLE | PCISTATE_ROM_RETRY_ENABLE);
9060 if (tg3_chip_rev_id(tp) == CHIPREV_ID_5704_A0 &&
9061 tg3_flag(tp, PCIX_MODE))
9062 val |= PCISTATE_RETRY_SAME_DMA;
9063 /* Allow reads and writes to the APE register and memory space. */
9064 if (tg3_flag(tp, ENABLE_APE))
9065 val |= PCISTATE_ALLOW_APE_CTLSPC_WR |
9066 PCISTATE_ALLOW_APE_SHMEM_WR |
9067 PCISTATE_ALLOW_APE_PSPACE_WR;
9068 pci_write_config_dword(dev: tp->pdev, TG3PCI_PCISTATE, val);
9069
9070 pci_write_config_word(dev: tp->pdev, PCI_COMMAND, val: tp->pci_cmd);
9071
9072 if (!tg3_flag(tp, PCI_EXPRESS)) {
9073 pci_write_config_byte(dev: tp->pdev, PCI_CACHE_LINE_SIZE,
9074 val: tp->pci_cacheline_sz);
9075 pci_write_config_byte(dev: tp->pdev, PCI_LATENCY_TIMER,
9076 val: tp->pci_lat_timer);
9077 }
9078
9079 /* Make sure PCI-X relaxed ordering bit is clear. */
9080 if (tg3_flag(tp, PCIX_MODE)) {
9081 u16 pcix_cmd;
9082
9083 pci_read_config_word(dev: tp->pdev, where: tp->pcix_cap + PCI_X_CMD,
9084 val: &pcix_cmd);
9085 pcix_cmd &= ~PCI_X_CMD_ERO;
9086 pci_write_config_word(dev: tp->pdev, where: tp->pcix_cap + PCI_X_CMD,
9087 val: pcix_cmd);
9088 }
9089
9090 if (tg3_flag(tp, 5780_CLASS)) {
9091
9092 /* Chip reset on 5780 will reset MSI enable bit,
9093 * so need to restore it.
9094 */
9095 if (tg3_flag(tp, USING_MSI)) {
9096 u16 ctrl;
9097
9098 pci_read_config_word(dev: tp->pdev,
9099 where: tp->msi_cap + PCI_MSI_FLAGS,
9100 val: &ctrl);
9101 pci_write_config_word(dev: tp->pdev,
9102 where: tp->msi_cap + PCI_MSI_FLAGS,
9103 val: ctrl | PCI_MSI_FLAGS_ENABLE);
9104 val = tr32(MSGINT_MODE);
9105 tw32(MSGINT_MODE, val | MSGINT_MODE_ENABLE);
9106 }
9107 }
9108}
9109
9110static void tg3_override_clk(struct tg3 *tp)
9111{
9112 u32 val;
9113
9114 switch (tg3_asic_rev(tp)) {
9115 case ASIC_REV_5717:
9116 val = tr32(TG3_CPMU_CLCK_ORIDE_ENABLE);
9117 tw32(TG3_CPMU_CLCK_ORIDE_ENABLE, val |
9118 TG3_CPMU_MAC_ORIDE_ENABLE);
9119 break;
9120
9121 case ASIC_REV_5719:
9122 case ASIC_REV_5720:
9123 tw32(TG3_CPMU_CLCK_ORIDE, CPMU_CLCK_ORIDE_MAC_ORIDE_EN);
9124 break;
9125
9126 default:
9127 return;
9128 }
9129}
9130
9131static void tg3_restore_clk(struct tg3 *tp)
9132{
9133 u32 val;
9134
9135 switch (tg3_asic_rev(tp)) {
9136 case ASIC_REV_5717:
9137 val = tr32(TG3_CPMU_CLCK_ORIDE_ENABLE);
9138 tw32(TG3_CPMU_CLCK_ORIDE_ENABLE,
9139 val & ~TG3_CPMU_MAC_ORIDE_ENABLE);
9140 break;
9141
9142 case ASIC_REV_5719:
9143 case ASIC_REV_5720:
9144 val = tr32(TG3_CPMU_CLCK_ORIDE);
9145 tw32(TG3_CPMU_CLCK_ORIDE, val & ~CPMU_CLCK_ORIDE_MAC_ORIDE_EN);
9146 break;
9147
9148 default:
9149 return;
9150 }
9151}
9152
9153/* tp->lock is held. */
9154static int tg3_chip_reset(struct tg3 *tp)
9155 __releases(tp->lock)
9156 __acquires(tp->lock)
9157{
9158 u32 val;
9159 void (*write_op)(struct tg3 *, u32, u32);
9160 int i, err;
9161
9162 if (!pci_device_is_present(pdev: tp->pdev))
9163 return -ENODEV;
9164
9165 tg3_nvram_lock(tp);
9166
9167 tg3_ape_lock(tp, TG3_APE_LOCK_GRC);
9168
9169 /* No matching tg3_nvram_unlock() after this because
9170 * chip reset below will undo the nvram lock.
9171 */
9172 tp->nvram_lock_cnt = 0;
9173
9174 /* GRC_MISC_CFG core clock reset will clear the memory
9175 * enable bit in PCI register 4 and the MSI enable bit
9176 * on some chips, so we save relevant registers here.
9177 */
9178 tg3_save_pci_state(tp);
9179
9180 if (tg3_asic_rev(tp) == ASIC_REV_5752 ||
9181 tg3_flag(tp, 5755_PLUS))
9182 tw32(GRC_FASTBOOT_PC, 0);
9183
9184 /*
9185 * We must avoid the readl() that normally takes place.
9186 * It locks machines, causes machine checks, and other
9187 * fun things. So, temporarily disable the 5701
9188 * hardware workaround, while we do the reset.
9189 */
9190 write_op = tp->write32;
9191 if (write_op == tg3_write_flush_reg32)
9192 tp->write32 = tg3_write32;
9193
9194 /* Prevent the irq handler from reading or writing PCI registers
9195 * during chip reset when the memory enable bit in the PCI command
9196 * register may be cleared. The chip does not generate interrupt
9197 * at this time, but the irq handler may still be called due to irq
9198 * sharing or irqpoll.
9199 */
9200 tg3_flag_set(tp, CHIP_RESETTING);
9201 for (i = 0; i < tp->irq_cnt; i++) {
9202 struct tg3_napi *tnapi = &tp->napi[i];
9203 if (tnapi->hw_status) {
9204 tnapi->hw_status->status = 0;
9205 tnapi->hw_status->status_tag = 0;
9206 }
9207 tnapi->last_tag = 0;
9208 tnapi->last_irq_tag = 0;
9209 }
9210 smp_mb();
9211
9212 tg3_full_unlock(tp);
9213
9214 for (i = 0; i < tp->irq_cnt; i++)
9215 synchronize_irq(irq: tp->napi[i].irq_vec);
9216
9217 tg3_full_lock(tp, irq_sync: 0);
9218
9219 if (tg3_asic_rev(tp) == ASIC_REV_57780) {
9220 val = tr32(TG3_PCIE_LNKCTL) & ~TG3_PCIE_LNKCTL_L1_PLL_PD_EN;
9221 tw32(TG3_PCIE_LNKCTL, val | TG3_PCIE_LNKCTL_L1_PLL_PD_DIS);
9222 }
9223
9224 /* do the reset */
9225 val = GRC_MISC_CFG_CORECLK_RESET;
9226
9227 if (tg3_flag(tp, PCI_EXPRESS)) {
9228 /* Force PCIe 1.0a mode */
9229 if (tg3_asic_rev(tp) != ASIC_REV_5785 &&
9230 !tg3_flag(tp, 57765_PLUS) &&
9231 tr32(TG3_PCIE_PHY_TSTCTL) ==
9232 (TG3_PCIE_PHY_TSTCTL_PCIE10 | TG3_PCIE_PHY_TSTCTL_PSCRAM))
9233 tw32(TG3_PCIE_PHY_TSTCTL, TG3_PCIE_PHY_TSTCTL_PSCRAM);
9234
9235 if (tg3_chip_rev_id(tp) != CHIPREV_ID_5750_A0) {
9236 tw32(GRC_MISC_CFG, (1 << 29));
9237 val |= (1 << 29);
9238 }
9239 }
9240
9241 if (tg3_asic_rev(tp) == ASIC_REV_5906) {
9242 tw32(VCPU_STATUS, tr32(VCPU_STATUS) | VCPU_STATUS_DRV_RESET);
9243 tw32(GRC_VCPU_EXT_CTRL,
9244 tr32(GRC_VCPU_EXT_CTRL) & ~GRC_VCPU_EXT_CTRL_HALT_CPU);
9245 }
9246
9247 /* Set the clock to the highest frequency to avoid timeouts. With link
9248 * aware mode, the clock speed could be slow and bootcode does not
9249 * complete within the expected time. Override the clock to allow the
9250 * bootcode to finish sooner and then restore it.
9251 */
9252 tg3_override_clk(tp);
9253
9254 /* Manage gphy power for all CPMU absent PCIe devices. */
9255 if (tg3_flag(tp, 5705_PLUS) && !tg3_flag(tp, CPMU_PRESENT))
9256 val |= GRC_MISC_CFG_KEEP_GPHY_POWER;
9257
9258 tw32(GRC_MISC_CFG, val);
9259
9260 /* restore 5701 hardware bug workaround write method */
9261 tp->write32 = write_op;
9262
9263 /* Unfortunately, we have to delay before the PCI read back.
9264 * Some 575X chips even will not respond to a PCI cfg access
9265 * when the reset command is given to the chip.
9266 *
9267 * How do these hardware designers expect things to work
9268 * properly if the PCI write is posted for a long period
9269 * of time? It is always necessary to have some method by
9270 * which a register read back can occur to push the write
9271 * out which does the reset.
9272 *
9273 * For most tg3 variants the trick below was working.
9274 * Ho hum...
9275 */
9276 udelay(usec: 120);
9277
9278 /* Flush PCI posted writes. The normal MMIO registers
9279 * are inaccessible at this time so this is the only
9280 * way to make this reliably (actually, this is no longer
9281 * the case, see above). I tried to use indirect
9282 * register read/write but this upset some 5701 variants.
9283 */
9284 pci_read_config_dword(dev: tp->pdev, PCI_COMMAND, val: &val);
9285
9286 udelay(usec: 120);
9287
9288 if (tg3_flag(tp, PCI_EXPRESS) && pci_is_pcie(dev: tp->pdev)) {
9289 u16 val16;
9290
9291 if (tg3_chip_rev_id(tp) == CHIPREV_ID_5750_A0) {
9292 int j;
9293 u32 cfg_val;
9294
9295 /* Wait for link training to complete. */
9296 for (j = 0; j < 5000; j++)
9297 udelay(usec: 100);
9298
9299 pci_read_config_dword(dev: tp->pdev, where: 0xc4, val: &cfg_val);
9300 pci_write_config_dword(dev: tp->pdev, where: 0xc4,
9301 val: cfg_val | (1 << 15));
9302 }
9303
9304 /* Clear the "no snoop" and "relaxed ordering" bits. */
9305 val16 = PCI_EXP_DEVCTL_RELAX_EN | PCI_EXP_DEVCTL_NOSNOOP_EN;
9306 /*
9307 * Older PCIe devices only support the 128 byte
9308 * MPS setting. Enforce the restriction.
9309 */
9310 if (!tg3_flag(tp, CPMU_PRESENT))
9311 val16 |= PCI_EXP_DEVCTL_PAYLOAD;
9312 pcie_capability_clear_word(dev: tp->pdev, PCI_EXP_DEVCTL, clear: val16);
9313
9314 /* Clear error status */
9315 pcie_capability_write_word(dev: tp->pdev, PCI_EXP_DEVSTA,
9316 PCI_EXP_DEVSTA_CED |
9317 PCI_EXP_DEVSTA_NFED |
9318 PCI_EXP_DEVSTA_FED |
9319 PCI_EXP_DEVSTA_URD);
9320 }
9321
9322 tg3_restore_pci_state(tp);
9323
9324 tg3_flag_clear(tp, CHIP_RESETTING);
9325 tg3_flag_clear(tp, ERROR_PROCESSED);
9326
9327 val = 0;
9328 if (tg3_flag(tp, 5780_CLASS))
9329 val = tr32(MEMARB_MODE);
9330 tw32(MEMARB_MODE, val | MEMARB_MODE_ENABLE);
9331
9332 if (tg3_chip_rev_id(tp) == CHIPREV_ID_5750_A3) {
9333 tg3_stop_fw(tp);
9334 tw32(0x5000, 0x400);
9335 }
9336
9337 if (tg3_flag(tp, IS_SSB_CORE)) {
9338 /*
9339 * BCM4785: In order to avoid repercussions from using
9340 * potentially defective internal ROM, stop the Rx RISC CPU,
9341 * which is not required.
9342 */
9343 tg3_stop_fw(tp);
9344 tg3_halt_cpu(tp, RX_CPU_BASE);
9345 }
9346
9347 err = tg3_poll_fw(tp);
9348 if (err)
9349 return err;
9350
9351 tw32(GRC_MODE, tp->grc_mode);
9352
9353 if (tg3_chip_rev_id(tp) == CHIPREV_ID_5705_A0) {
9354 val = tr32(0xc4);
9355
9356 tw32(0xc4, val | (1 << 15));
9357 }
9358
9359 if ((tp->nic_sram_data_cfg & NIC_SRAM_DATA_CFG_MINI_PCI) != 0 &&
9360 tg3_asic_rev(tp) == ASIC_REV_5705) {
9361 tp->pci_clock_ctrl |= CLOCK_CTRL_CLKRUN_OENABLE;
9362 if (tg3_chip_rev_id(tp) == CHIPREV_ID_5705_A0)
9363 tp->pci_clock_ctrl |= CLOCK_CTRL_FORCE_CLKRUN;
9364 tw32(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl);
9365 }
9366
9367 if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES) {
9368 tp->mac_mode = MAC_MODE_PORT_MODE_TBI;
9369 val = tp->mac_mode;
9370 } else if (tp->phy_flags & TG3_PHYFLG_MII_SERDES) {
9371 tp->mac_mode = MAC_MODE_PORT_MODE_GMII;
9372 val = tp->mac_mode;
9373 } else
9374 val = 0;
9375
9376 tw32_f(MAC_MODE, val);
9377 udelay(usec: 40);
9378
9379 tg3_ape_unlock(tp, TG3_APE_LOCK_GRC);
9380
9381 tg3_mdio_start(tp);
9382
9383 if (tg3_flag(tp, PCI_EXPRESS) &&
9384 tg3_chip_rev_id(tp) != CHIPREV_ID_5750_A0 &&
9385 tg3_asic_rev(tp) != ASIC_REV_5785 &&
9386 !tg3_flag(tp, 57765_PLUS)) {
9387 val = tr32(0x7c00);
9388
9389 tw32(0x7c00, val | (1 << 25));
9390 }
9391
9392 tg3_restore_clk(tp);
9393
9394 /* Increase the core clock speed to fix tx timeout issue for 5762
9395 * with 100Mbps link speed.
9396 */
9397 if (tg3_asic_rev(tp) == ASIC_REV_5762) {
9398 val = tr32(TG3_CPMU_CLCK_ORIDE_ENABLE);
9399 tw32(TG3_CPMU_CLCK_ORIDE_ENABLE, val |
9400 TG3_CPMU_MAC_ORIDE_ENABLE);
9401 }
9402
9403 /* Reprobe ASF enable state. */
9404 tg3_flag_clear(tp, ENABLE_ASF);
9405 tp->phy_flags &= ~(TG3_PHYFLG_1G_ON_VAUX_OK |
9406 TG3_PHYFLG_KEEP_LINK_ON_PWRDN);
9407
9408 tg3_flag_clear(tp, ASF_NEW_HANDSHAKE);
9409 tg3_read_mem(tp, NIC_SRAM_DATA_SIG, val: &val);
9410 if (val == NIC_SRAM_DATA_SIG_MAGIC) {
9411 u32 nic_cfg;
9412
9413 tg3_read_mem(tp, NIC_SRAM_DATA_CFG, val: &nic_cfg);
9414 if (nic_cfg & NIC_SRAM_DATA_CFG_ASF_ENABLE) {
9415 tg3_flag_set(tp, ENABLE_ASF);
9416 tp->last_event_jiffies = jiffies;
9417 if (tg3_flag(tp, 5750_PLUS))
9418 tg3_flag_set(tp, ASF_NEW_HANDSHAKE);
9419
9420 tg3_read_mem(tp, NIC_SRAM_DATA_CFG_3, val: &nic_cfg);
9421 if (nic_cfg & NIC_SRAM_1G_ON_VAUX_OK)
9422 tp->phy_flags |= TG3_PHYFLG_1G_ON_VAUX_OK;
9423 if (nic_cfg & NIC_SRAM_LNK_FLAP_AVOID)
9424 tp->phy_flags |= TG3_PHYFLG_KEEP_LINK_ON_PWRDN;
9425 }
9426 }
9427
9428 return 0;
9429}
9430
9431static void tg3_get_nstats(struct tg3 *, struct rtnl_link_stats64 *);
9432static void tg3_get_estats(struct tg3 *, struct tg3_ethtool_stats *);
9433static void __tg3_set_rx_mode(struct net_device *);
9434
9435/* tp->lock is held. */
9436static int tg3_halt(struct tg3 *tp, int kind, bool silent)
9437{
9438 int err, i;
9439
9440 tg3_stop_fw(tp);
9441
9442 tg3_write_sig_pre_reset(tp, kind);
9443
9444 tg3_abort_hw(tp, silent);
9445 err = tg3_chip_reset(tp);
9446
9447 __tg3_set_mac_addr(tp, skip_mac_1: false);
9448
9449 tg3_write_sig_legacy(tp, kind);
9450 tg3_write_sig_post_reset(tp, kind);
9451
9452 if (tp->hw_stats) {
9453 /* Save the stats across chip resets... */
9454 tg3_get_nstats(tp, &tp->net_stats_prev);
9455 tg3_get_estats(tp, &tp->estats_prev);
9456
9457 /* And make sure the next sample is new data */
9458 memset(s: tp->hw_stats, c: 0, n: sizeof(struct tg3_hw_stats));
9459
9460 for (i = 0; i < TG3_IRQ_MAX_VECS; ++i) {
9461 struct tg3_napi *tnapi = &tp->napi[i];
9462
9463 tnapi->rx_dropped = 0;
9464 tnapi->tx_dropped = 0;
9465 }
9466 }
9467
9468 return err;
9469}
9470
9471static int tg3_set_mac_addr(struct net_device *dev, void *p)
9472{
9473 struct tg3 *tp = netdev_priv(dev);
9474 struct sockaddr *addr = p;
9475 int err = 0;
9476 bool skip_mac_1 = false;
9477
9478 if (!is_valid_ether_addr(addr: addr->sa_data))
9479 return -EADDRNOTAVAIL;
9480
9481 eth_hw_addr_set(dev, addr: addr->sa_data);
9482
9483 if (!netif_running(dev))
9484 return 0;
9485
9486 if (tg3_flag(tp, ENABLE_ASF)) {
9487 u32 addr0_high, addr0_low, addr1_high, addr1_low;
9488
9489 addr0_high = tr32(MAC_ADDR_0_HIGH);
9490 addr0_low = tr32(MAC_ADDR_0_LOW);
9491 addr1_high = tr32(MAC_ADDR_1_HIGH);
9492 addr1_low = tr32(MAC_ADDR_1_LOW);
9493
9494 /* Skip MAC addr 1 if ASF is using it. */
9495 if ((addr0_high != addr1_high || addr0_low != addr1_low) &&
9496 !(addr1_high == 0 && addr1_low == 0))
9497 skip_mac_1 = true;
9498 }
9499 spin_lock_bh(lock: &tp->lock);
9500 __tg3_set_mac_addr(tp, skip_mac_1);
9501 __tg3_set_rx_mode(dev);
9502 spin_unlock_bh(lock: &tp->lock);
9503
9504 return err;
9505}
9506
9507/* tp->lock is held. */
9508static void tg3_set_bdinfo(struct tg3 *tp, u32 bdinfo_addr,
9509 dma_addr_t mapping, u32 maxlen_flags,
9510 u32 nic_addr)
9511{
9512 tg3_write_mem(tp,
9513 off: (bdinfo_addr + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_HIGH),
9514 val: ((u64) mapping >> 32));
9515 tg3_write_mem(tp,
9516 off: (bdinfo_addr + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_LOW),
9517 val: ((u64) mapping & 0xffffffff));
9518 tg3_write_mem(tp,
9519 off: (bdinfo_addr + TG3_BDINFO_MAXLEN_FLAGS),
9520 val: maxlen_flags);
9521
9522 if (!tg3_flag(tp, 5705_PLUS))
9523 tg3_write_mem(tp,
9524 off: (bdinfo_addr + TG3_BDINFO_NIC_ADDR),
9525 val: nic_addr);
9526}
9527
9528
9529static void tg3_coal_tx_init(struct tg3 *tp, struct ethtool_coalesce *ec)
9530{
9531 int i = 0;
9532
9533 if (!tg3_flag(tp, ENABLE_TSS)) {
9534 tw32(HOSTCC_TXCOL_TICKS, ec->tx_coalesce_usecs);
9535 tw32(HOSTCC_TXMAX_FRAMES, ec->tx_max_coalesced_frames);
9536 tw32(HOSTCC_TXCOAL_MAXF_INT, ec->tx_max_coalesced_frames_irq);
9537 } else {
9538 tw32(HOSTCC_TXCOL_TICKS, 0);
9539 tw32(HOSTCC_TXMAX_FRAMES, 0);
9540 tw32(HOSTCC_TXCOAL_MAXF_INT, 0);
9541
9542 for (; i < tp->txq_cnt; i++) {
9543 u32 reg;
9544
9545 reg = HOSTCC_TXCOL_TICKS_VEC1 + i * 0x18;
9546 tw32(reg, ec->tx_coalesce_usecs);
9547 reg = HOSTCC_TXMAX_FRAMES_VEC1 + i * 0x18;
9548 tw32(reg, ec->tx_max_coalesced_frames);
9549 reg = HOSTCC_TXCOAL_MAXF_INT_VEC1 + i * 0x18;
9550 tw32(reg, ec->tx_max_coalesced_frames_irq);
9551 }
9552 }
9553
9554 for (; i < tp->irq_max - 1; i++) {
9555 tw32(HOSTCC_TXCOL_TICKS_VEC1 + i * 0x18, 0);
9556 tw32(HOSTCC_TXMAX_FRAMES_VEC1 + i * 0x18, 0);
9557 tw32(HOSTCC_TXCOAL_MAXF_INT_VEC1 + i * 0x18, 0);
9558 }
9559}
9560
9561static void tg3_coal_rx_init(struct tg3 *tp, struct ethtool_coalesce *ec)
9562{
9563 int i = 0;
9564 u32 limit = tp->rxq_cnt;
9565
9566 if (!tg3_flag(tp, ENABLE_RSS)) {
9567 tw32(HOSTCC_RXCOL_TICKS, ec->rx_coalesce_usecs);
9568 tw32(HOSTCC_RXMAX_FRAMES, ec->rx_max_coalesced_frames);
9569 tw32(HOSTCC_RXCOAL_MAXF_INT, ec->rx_max_coalesced_frames_irq);
9570 limit--;
9571 } else {
9572 tw32(HOSTCC_RXCOL_TICKS, 0);
9573 tw32(HOSTCC_RXMAX_FRAMES, 0);
9574 tw32(HOSTCC_RXCOAL_MAXF_INT, 0);
9575 }
9576
9577 for (; i < limit; i++) {
9578 u32 reg;
9579
9580 reg = HOSTCC_RXCOL_TICKS_VEC1 + i * 0x18;
9581 tw32(reg, ec->rx_coalesce_usecs);
9582 reg = HOSTCC_RXMAX_FRAMES_VEC1 + i * 0x18;
9583 tw32(reg, ec->rx_max_coalesced_frames);
9584 reg = HOSTCC_RXCOAL_MAXF_INT_VEC1 + i * 0x18;
9585 tw32(reg, ec->rx_max_coalesced_frames_irq);
9586 }
9587
9588 for (; i < tp->irq_max - 1; i++) {
9589 tw32(HOSTCC_RXCOL_TICKS_VEC1 + i * 0x18, 0);
9590 tw32(HOSTCC_RXMAX_FRAMES_VEC1 + i * 0x18, 0);
9591 tw32(HOSTCC_RXCOAL_MAXF_INT_VEC1 + i * 0x18, 0);
9592 }
9593}
9594
9595static void __tg3_set_coalesce(struct tg3 *tp, struct ethtool_coalesce *ec)
9596{
9597 tg3_coal_tx_init(tp, ec);
9598 tg3_coal_rx_init(tp, ec);
9599
9600 if (!tg3_flag(tp, 5705_PLUS)) {
9601 u32 val = ec->stats_block_coalesce_usecs;
9602
9603 tw32(HOSTCC_RXCOAL_TICK_INT, ec->rx_coalesce_usecs_irq);
9604 tw32(HOSTCC_TXCOAL_TICK_INT, ec->tx_coalesce_usecs_irq);
9605
9606 if (!tp->link_up)
9607 val = 0;
9608
9609 tw32(HOSTCC_STAT_COAL_TICKS, val);
9610 }
9611}
9612
9613/* tp->lock is held. */
9614static void tg3_tx_rcbs_disable(struct tg3 *tp)
9615{
9616 u32 txrcb, limit;
9617
9618 /* Disable all transmit rings but the first. */
9619 if (!tg3_flag(tp, 5705_PLUS))
9620 limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE * 16;
9621 else if (tg3_flag(tp, 5717_PLUS))
9622 limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE * 4;
9623 else if (tg3_flag(tp, 57765_CLASS) ||
9624 tg3_asic_rev(tp) == ASIC_REV_5762)
9625 limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE * 2;
9626 else
9627 limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE;
9628
9629 for (txrcb = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE;
9630 txrcb < limit; txrcb += TG3_BDINFO_SIZE)
9631 tg3_write_mem(tp, off: txrcb + TG3_BDINFO_MAXLEN_FLAGS,
9632 BDINFO_FLAGS_DISABLED);
9633}
9634
9635/* tp->lock is held. */
9636static void tg3_tx_rcbs_init(struct tg3 *tp)
9637{
9638 int i = 0;
9639 u32 txrcb = NIC_SRAM_SEND_RCB;
9640
9641 if (tg3_flag(tp, ENABLE_TSS))
9642 i++;
9643
9644 for (; i < tp->irq_max; i++, txrcb += TG3_BDINFO_SIZE) {
9645 struct tg3_napi *tnapi = &tp->napi[i];
9646
9647 if (!tnapi->tx_ring)
9648 continue;
9649
9650 tg3_set_bdinfo(tp, bdinfo_addr: txrcb, mapping: tnapi->tx_desc_mapping,
9651 maxlen_flags: (TG3_TX_RING_SIZE << BDINFO_FLAGS_MAXLEN_SHIFT),
9652 NIC_SRAM_TX_BUFFER_DESC);
9653 }
9654}
9655
9656/* tp->lock is held. */
9657static void tg3_rx_ret_rcbs_disable(struct tg3 *tp)
9658{
9659 u32 rxrcb, limit;
9660
9661 /* Disable all receive return rings but the first. */
9662 if (tg3_flag(tp, 5717_PLUS))
9663 limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE * 17;
9664 else if (!tg3_flag(tp, 5705_PLUS))
9665 limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE * 16;
9666 else if (tg3_asic_rev(tp) == ASIC_REV_5755 ||
9667 tg3_asic_rev(tp) == ASIC_REV_5762 ||
9668 tg3_flag(tp, 57765_CLASS))
9669 limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE * 4;
9670 else
9671 limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE;
9672
9673 for (rxrcb = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE;
9674 rxrcb < limit; rxrcb += TG3_BDINFO_SIZE)
9675 tg3_write_mem(tp, off: rxrcb + TG3_BDINFO_MAXLEN_FLAGS,
9676 BDINFO_FLAGS_DISABLED);
9677}
9678
9679/* tp->lock is held. */
9680static void tg3_rx_ret_rcbs_init(struct tg3 *tp)
9681{
9682 int i = 0;
9683 u32 rxrcb = NIC_SRAM_RCV_RET_RCB;
9684
9685 if (tg3_flag(tp, ENABLE_RSS))
9686 i++;
9687
9688 for (; i < tp->irq_max; i++, rxrcb += TG3_BDINFO_SIZE) {
9689 struct tg3_napi *tnapi = &tp->napi[i];
9690
9691 if (!tnapi->rx_rcb)
9692 continue;
9693
9694 tg3_set_bdinfo(tp, bdinfo_addr: rxrcb, mapping: tnapi->rx_rcb_mapping,
9695 maxlen_flags: (tp->rx_ret_ring_mask + 1) <<
9696 BDINFO_FLAGS_MAXLEN_SHIFT, nic_addr: 0);
9697 }
9698}
9699
9700/* tp->lock is held. */
9701static void tg3_rings_reset(struct tg3 *tp)
9702{
9703 int i;
9704 u32 stblk;
9705 struct tg3_napi *tnapi = &tp->napi[0];
9706
9707 tg3_tx_rcbs_disable(tp);
9708
9709 tg3_rx_ret_rcbs_disable(tp);
9710
9711 /* Disable interrupts */
9712 tw32_mailbox_f(tp->napi[0].int_mbox, 1);
9713 tp->napi[0].chk_msi_cnt = 0;
9714 tp->napi[0].last_rx_cons = 0;
9715 tp->napi[0].last_tx_cons = 0;
9716
9717 /* Zero mailbox registers. */
9718 if (tg3_flag(tp, SUPPORT_MSIX)) {
9719 for (i = 1; i < tp->irq_max; i++) {
9720 tp->napi[i].tx_prod = 0;
9721 tp->napi[i].tx_cons = 0;
9722 if (tg3_flag(tp, ENABLE_TSS))
9723 tw32_mailbox(tp->napi[i].prodmbox, 0);
9724 tw32_rx_mbox(tp->napi[i].consmbox, 0);
9725 tw32_mailbox_f(tp->napi[i].int_mbox, 1);
9726 tp->napi[i].chk_msi_cnt = 0;
9727 tp->napi[i].last_rx_cons = 0;
9728 tp->napi[i].last_tx_cons = 0;
9729 }
9730 if (!tg3_flag(tp, ENABLE_TSS))
9731 tw32_mailbox(tp->napi[0].prodmbox, 0);
9732 } else {
9733 tp->napi[0].tx_prod = 0;
9734 tp->napi[0].tx_cons = 0;
9735 tw32_mailbox(tp->napi[0].prodmbox, 0);
9736 tw32_rx_mbox(tp->napi[0].consmbox, 0);
9737 }
9738
9739 /* Make sure the NIC-based send BD rings are disabled. */
9740 if (!tg3_flag(tp, 5705_PLUS)) {
9741 u32 mbox = MAILBOX_SNDNIC_PROD_IDX_0 + TG3_64BIT_REG_LOW;
9742 for (i = 0; i < 16; i++)
9743 tw32_tx_mbox(mbox + i * 8, 0);
9744 }
9745
9746 /* Clear status block in ram. */
9747 memset(s: tnapi->hw_status, c: 0, TG3_HW_STATUS_SIZE);
9748
9749 /* Set status block DMA address */
9750 tw32(HOSTCC_STATUS_BLK_HOST_ADDR + TG3_64BIT_REG_HIGH,
9751 ((u64) tnapi->status_mapping >> 32));
9752 tw32(HOSTCC_STATUS_BLK_HOST_ADDR + TG3_64BIT_REG_LOW,
9753 ((u64) tnapi->status_mapping & 0xffffffff));
9754
9755 stblk = HOSTCC_STATBLCK_RING1;
9756
9757 for (i = 1, tnapi++; i < tp->irq_cnt; i++, tnapi++) {
9758 u64 mapping = (u64)tnapi->status_mapping;
9759 tw32(stblk + TG3_64BIT_REG_HIGH, mapping >> 32);
9760 tw32(stblk + TG3_64BIT_REG_LOW, mapping & 0xffffffff);
9761 stblk += 8;
9762
9763 /* Clear status block in ram. */
9764 memset(s: tnapi->hw_status, c: 0, TG3_HW_STATUS_SIZE);
9765 }
9766
9767 tg3_tx_rcbs_init(tp);
9768 tg3_rx_ret_rcbs_init(tp);
9769}
9770
9771static void tg3_setup_rxbd_thresholds(struct tg3 *tp)
9772{
9773 u32 val, bdcache_maxcnt, host_rep_thresh, nic_rep_thresh;
9774
9775 if (!tg3_flag(tp, 5750_PLUS) ||
9776 tg3_flag(tp, 5780_CLASS) ||
9777 tg3_asic_rev(tp) == ASIC_REV_5750 ||
9778 tg3_asic_rev(tp) == ASIC_REV_5752 ||
9779 tg3_flag(tp, 57765_PLUS))
9780 bdcache_maxcnt = TG3_SRAM_RX_STD_BDCACHE_SIZE_5700;
9781 else if (tg3_asic_rev(tp) == ASIC_REV_5755 ||
9782 tg3_asic_rev(tp) == ASIC_REV_5787)
9783 bdcache_maxcnt = TG3_SRAM_RX_STD_BDCACHE_SIZE_5755;
9784 else
9785 bdcache_maxcnt = TG3_SRAM_RX_STD_BDCACHE_SIZE_5906;
9786
9787 nic_rep_thresh = min(bdcache_maxcnt / 2, tp->rx_std_max_post);
9788 host_rep_thresh = max_t(u32, tp->rx_pending / 8, 1);
9789
9790 val = min(nic_rep_thresh, host_rep_thresh);
9791 tw32(RCVBDI_STD_THRESH, val);
9792
9793 if (tg3_flag(tp, 57765_PLUS))
9794 tw32(STD_REPLENISH_LWM, bdcache_maxcnt);
9795
9796 if (!tg3_flag(tp, JUMBO_CAPABLE) || tg3_flag(tp, 5780_CLASS))
9797 return;
9798
9799 bdcache_maxcnt = TG3_SRAM_RX_JMB_BDCACHE_SIZE_5700;
9800
9801 host_rep_thresh = max_t(u32, tp->rx_jumbo_pending / 8, 1);
9802
9803 val = min(bdcache_maxcnt / 2, host_rep_thresh);
9804 tw32(RCVBDI_JUMBO_THRESH, val);
9805
9806 if (tg3_flag(tp, 57765_PLUS))
9807 tw32(JMB_REPLENISH_LWM, bdcache_maxcnt);
9808}
9809
9810static inline u32 calc_crc(unsigned char *buf, int len)
9811{
9812 return ~crc32(crc: ~0, p: buf, len);
9813}
9814
9815static void tg3_set_multi(struct tg3 *tp, unsigned int accept_all)
9816{
9817 /* accept or reject all multicast frames */
9818 tw32(MAC_HASH_REG_0, accept_all ? 0xffffffff : 0);
9819 tw32(MAC_HASH_REG_1, accept_all ? 0xffffffff : 0);
9820 tw32(MAC_HASH_REG_2, accept_all ? 0xffffffff : 0);
9821 tw32(MAC_HASH_REG_3, accept_all ? 0xffffffff : 0);
9822}
9823
9824static void __tg3_set_rx_mode(struct net_device *dev)
9825{
9826 struct tg3 *tp = netdev_priv(dev);
9827 u32 rx_mode;
9828
9829 rx_mode = tp->rx_mode & ~(RX_MODE_PROMISC |
9830 RX_MODE_KEEP_VLAN_TAG);
9831
9832#if !defined(CONFIG_VLAN_8021Q) && !defined(CONFIG_VLAN_8021Q_MODULE)
9833 /* When ASF is in use, we always keep the RX_MODE_KEEP_VLAN_TAG
9834 * flag clear.
9835 */
9836 if (!tg3_flag(tp, ENABLE_ASF))
9837 rx_mode |= RX_MODE_KEEP_VLAN_TAG;
9838#endif
9839
9840 if (dev->flags & IFF_PROMISC) {
9841 /* Promiscuous mode. */
9842 rx_mode |= RX_MODE_PROMISC;
9843 } else if (dev->flags & IFF_ALLMULTI) {
9844 /* Accept all multicast. */
9845 tg3_set_multi(tp, accept_all: 1);
9846 } else if (netdev_mc_empty(dev)) {
9847 /* Reject all multicast. */
9848 tg3_set_multi(tp, accept_all: 0);
9849 } else {
9850 /* Accept one or more multicast(s). */
9851 struct netdev_hw_addr *ha;
9852 u32 mc_filter[4] = { 0, };
9853 u32 regidx;
9854 u32 bit;
9855 u32 crc;
9856
9857 netdev_for_each_mc_addr(ha, dev) {
9858 crc = calc_crc(buf: ha->addr, ETH_ALEN);
9859 bit = ~crc & 0x7f;
9860 regidx = (bit & 0x60) >> 5;
9861 bit &= 0x1f;
9862 mc_filter[regidx] |= (1 << bit);
9863 }
9864
9865 tw32(MAC_HASH_REG_0, mc_filter[0]);
9866 tw32(MAC_HASH_REG_1, mc_filter[1]);
9867 tw32(MAC_HASH_REG_2, mc_filter[2]);
9868 tw32(MAC_HASH_REG_3, mc_filter[3]);
9869 }
9870
9871 if (netdev_uc_count(dev) > TG3_MAX_UCAST_ADDR(tp)) {
9872 rx_mode |= RX_MODE_PROMISC;
9873 } else if (!(dev->flags & IFF_PROMISC)) {
9874 /* Add all entries into to the mac addr filter list */
9875 int i = 0;
9876 struct netdev_hw_addr *ha;
9877
9878 netdev_for_each_uc_addr(ha, dev) {
9879 __tg3_set_one_mac_addr(tp, mac_addr: ha->addr,
9880 index: i + TG3_UCAST_ADDR_IDX(tp));
9881 i++;
9882 }
9883 }
9884
9885 if (rx_mode != tp->rx_mode) {
9886 tp->rx_mode = rx_mode;
9887 tw32_f(MAC_RX_MODE, rx_mode);
9888 udelay(usec: 10);
9889 }
9890}
9891
9892static void tg3_rss_init_dflt_indir_tbl(struct tg3 *tp, u32 qcnt)
9893{
9894 int i;
9895
9896 for (i = 0; i < TG3_RSS_INDIR_TBL_SIZE; i++)
9897 tp->rss_ind_tbl[i] = ethtool_rxfh_indir_default(index: i, n_rx_rings: qcnt);
9898}
9899
9900static void tg3_rss_check_indir_tbl(struct tg3 *tp)
9901{
9902 int i;
9903
9904 if (!tg3_flag(tp, SUPPORT_MSIX))
9905 return;
9906
9907 if (tp->rxq_cnt == 1) {
9908 memset(s: &tp->rss_ind_tbl[0], c: 0, n: sizeof(tp->rss_ind_tbl));
9909 return;
9910 }
9911
9912 /* Validate table against current IRQ count */
9913 for (i = 0; i < TG3_RSS_INDIR_TBL_SIZE; i++) {
9914 if (tp->rss_ind_tbl[i] >= tp->rxq_cnt)
9915 break;
9916 }
9917
9918 if (i != TG3_RSS_INDIR_TBL_SIZE)
9919 tg3_rss_init_dflt_indir_tbl(tp, qcnt: tp->rxq_cnt);
9920}
9921
9922static void tg3_rss_write_indir_tbl(struct tg3 *tp)
9923{
9924 int i = 0;
9925 u32 reg = MAC_RSS_INDIR_TBL_0;
9926
9927 while (i < TG3_RSS_INDIR_TBL_SIZE) {
9928 u32 val = tp->rss_ind_tbl[i];
9929 i++;
9930 for (; i % 8; i++) {
9931 val <<= 4;
9932 val |= tp->rss_ind_tbl[i];
9933 }
9934 tw32(reg, val);
9935 reg += 4;
9936 }
9937}
9938
9939static inline u32 tg3_lso_rd_dma_workaround_bit(struct tg3 *tp)
9940{
9941 if (tg3_asic_rev(tp) == ASIC_REV_5719)
9942 return TG3_LSO_RD_DMA_TX_LENGTH_WA_5719;
9943 else
9944 return TG3_LSO_RD_DMA_TX_LENGTH_WA_5720;
9945}
9946
9947/* tp->lock is held. */
9948static int tg3_reset_hw(struct tg3 *tp, bool reset_phy)
9949{
9950 u32 val, rdmac_mode;
9951 int i, err, limit;
9952 struct tg3_rx_prodring_set *tpr = &tp->napi[0].prodring;
9953
9954 tg3_disable_ints(tp);
9955
9956 tg3_stop_fw(tp);
9957
9958 tg3_write_sig_pre_reset(tp, RESET_KIND_INIT);
9959
9960 if (tg3_flag(tp, INIT_COMPLETE))
9961 tg3_abort_hw(tp, silent: 1);
9962
9963 if ((tp->phy_flags & TG3_PHYFLG_KEEP_LINK_ON_PWRDN) &&
9964 !(tp->phy_flags & TG3_PHYFLG_USER_CONFIGURED)) {
9965 tg3_phy_pull_config(tp);
9966 tg3_eee_pull_config(tp, NULL);
9967 tp->phy_flags |= TG3_PHYFLG_USER_CONFIGURED;
9968 }
9969
9970 /* Enable MAC control of LPI */
9971 if (tp->phy_flags & TG3_PHYFLG_EEE_CAP)
9972 tg3_setup_eee(tp);
9973
9974 if (reset_phy)
9975 tg3_phy_reset(tp);
9976
9977 err = tg3_chip_reset(tp);
9978 if (err)
9979 return err;
9980
9981 tg3_write_sig_legacy(tp, RESET_KIND_INIT);
9982
9983 if (tg3_chip_rev(tp) == CHIPREV_5784_AX) {
9984 val = tr32(TG3_CPMU_CTRL);
9985 val &= ~(CPMU_CTRL_LINK_AWARE_MODE | CPMU_CTRL_LINK_IDLE_MODE);
9986 tw32(TG3_CPMU_CTRL, val);
9987
9988 val = tr32(TG3_CPMU_LSPD_10MB_CLK);
9989 val &= ~CPMU_LSPD_10MB_MACCLK_MASK;
9990 val |= CPMU_LSPD_10MB_MACCLK_6_25;
9991 tw32(TG3_CPMU_LSPD_10MB_CLK, val);
9992
9993 val = tr32(TG3_CPMU_LNK_AWARE_PWRMD);
9994 val &= ~CPMU_LNK_AWARE_MACCLK_MASK;
9995 val |= CPMU_LNK_AWARE_MACCLK_6_25;
9996 tw32(TG3_CPMU_LNK_AWARE_PWRMD, val);
9997
9998 val = tr32(TG3_CPMU_HST_ACC);
9999 val &= ~CPMU_HST_ACC_MACCLK_MASK;
10000 val |= CPMU_HST_ACC_MACCLK_6_25;
10001 tw32(TG3_CPMU_HST_ACC, val);
10002 }
10003
10004 if (tg3_asic_rev(tp) == ASIC_REV_57780) {
10005 val = tr32(PCIE_PWR_MGMT_THRESH) & ~PCIE_PWR_MGMT_L1_THRESH_MSK;
10006 val |= PCIE_PWR_MGMT_EXT_ASPM_TMR_EN |
10007 PCIE_PWR_MGMT_L1_THRESH_4MS;
10008 tw32(PCIE_PWR_MGMT_THRESH, val);
10009
10010 val = tr32(TG3_PCIE_EIDLE_DELAY) & ~TG3_PCIE_EIDLE_DELAY_MASK;
10011 tw32(TG3_PCIE_EIDLE_DELAY, val | TG3_PCIE_EIDLE_DELAY_13_CLKS);
10012
10013 tw32(TG3_CORR_ERR_STAT, TG3_CORR_ERR_STAT_CLEAR);
10014
10015 val = tr32(TG3_PCIE_LNKCTL) & ~TG3_PCIE_LNKCTL_L1_PLL_PD_EN;
10016 tw32(TG3_PCIE_LNKCTL, val | TG3_PCIE_LNKCTL_L1_PLL_PD_DIS);
10017 }
10018
10019 if (tg3_flag(tp, L1PLLPD_EN)) {
10020 u32 grc_mode = tr32(GRC_MODE);
10021
10022 /* Access the lower 1K of PL PCIE block registers. */
10023 val = grc_mode & ~GRC_MODE_PCIE_PORT_MASK;
10024 tw32(GRC_MODE, val | GRC_MODE_PCIE_PL_SEL);
10025
10026 val = tr32(TG3_PCIE_TLDLPL_PORT + TG3_PCIE_PL_LO_PHYCTL1);
10027 tw32(TG3_PCIE_TLDLPL_PORT + TG3_PCIE_PL_LO_PHYCTL1,
10028 val | TG3_PCIE_PL_LO_PHYCTL1_L1PLLPD_EN);
10029
10030 tw32(GRC_MODE, grc_mode);
10031 }
10032
10033 if (tg3_flag(tp, 57765_CLASS)) {
10034 if (tg3_chip_rev_id(tp) == CHIPREV_ID_57765_A0) {
10035 u32 grc_mode = tr32(GRC_MODE);
10036
10037 /* Access the lower 1K of PL PCIE block registers. */
10038 val = grc_mode & ~GRC_MODE_PCIE_PORT_MASK;
10039 tw32(GRC_MODE, val | GRC_MODE_PCIE_PL_SEL);
10040
10041 val = tr32(TG3_PCIE_TLDLPL_PORT +
10042 TG3_PCIE_PL_LO_PHYCTL5);
10043 tw32(TG3_PCIE_TLDLPL_PORT + TG3_PCIE_PL_LO_PHYCTL5,
10044 val | TG3_PCIE_PL_LO_PHYCTL5_DIS_L2CLKREQ);
10045
10046 tw32(GRC_MODE, grc_mode);
10047 }
10048
10049 if (tg3_chip_rev(tp) != CHIPREV_57765_AX) {
10050 u32 grc_mode;
10051
10052 /* Fix transmit hangs */
10053 val = tr32(TG3_CPMU_PADRNG_CTL);
10054 val |= TG3_CPMU_PADRNG_CTL_RDIV2;
10055 tw32(TG3_CPMU_PADRNG_CTL, val);
10056
10057 grc_mode = tr32(GRC_MODE);
10058
10059 /* Access the lower 1K of DL PCIE block registers. */
10060 val = grc_mode & ~GRC_MODE_PCIE_PORT_MASK;
10061 tw32(GRC_MODE, val | GRC_MODE_PCIE_DL_SEL);
10062
10063 val = tr32(TG3_PCIE_TLDLPL_PORT +
10064 TG3_PCIE_DL_LO_FTSMAX);
10065 val &= ~TG3_PCIE_DL_LO_FTSMAX_MSK;
10066 tw32(TG3_PCIE_TLDLPL_PORT + TG3_PCIE_DL_LO_FTSMAX,
10067 val | TG3_PCIE_DL_LO_FTSMAX_VAL);
10068
10069 tw32(GRC_MODE, grc_mode);
10070 }
10071
10072 val = tr32(TG3_CPMU_LSPD_10MB_CLK);
10073 val &= ~CPMU_LSPD_10MB_MACCLK_MASK;
10074 val |= CPMU_LSPD_10MB_MACCLK_6_25;
10075 tw32(TG3_CPMU_LSPD_10MB_CLK, val);
10076 }
10077
10078 /* This works around an issue with Athlon chipsets on
10079 * B3 tigon3 silicon. This bit has no effect on any
10080 * other revision. But do not set this on PCI Express
10081 * chips and don't even touch the clocks if the CPMU is present.
10082 */
10083 if (!tg3_flag(tp, CPMU_PRESENT)) {
10084 if (!tg3_flag(tp, PCI_EXPRESS))
10085 tp->pci_clock_ctrl |= CLOCK_CTRL_DELAY_PCI_GRANT;
10086 tw32_f(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl);
10087 }
10088
10089 if (tg3_chip_rev_id(tp) == CHIPREV_ID_5704_A0 &&
10090 tg3_flag(tp, PCIX_MODE)) {
10091 val = tr32(TG3PCI_PCISTATE);
10092 val |= PCISTATE_RETRY_SAME_DMA;
10093 tw32(TG3PCI_PCISTATE, val);
10094 }
10095
10096 if (tg3_flag(tp, ENABLE_APE)) {
10097 /* Allow reads and writes to the
10098 * APE register and memory space.
10099 */
10100 val = tr32(TG3PCI_PCISTATE);
10101 val |= PCISTATE_ALLOW_APE_CTLSPC_WR |
10102 PCISTATE_ALLOW_APE_SHMEM_WR |
10103 PCISTATE_ALLOW_APE_PSPACE_WR;
10104 tw32(TG3PCI_PCISTATE, val);
10105 }
10106
10107 if (tg3_chip_rev(tp) == CHIPREV_5704_BX) {
10108 /* Enable some hw fixes. */
10109 val = tr32(TG3PCI_MSI_DATA);
10110 val |= (1 << 26) | (1 << 28) | (1 << 29);
10111 tw32(TG3PCI_MSI_DATA, val);
10112 }
10113
10114 /* Descriptor ring init may make accesses to the
10115 * NIC SRAM area to setup the TX descriptors, so we
10116 * can only do this after the hardware has been
10117 * successfully reset.
10118 */
10119 err = tg3_init_rings(tp);
10120 if (err)
10121 return err;
10122
10123 if (tg3_flag(tp, 57765_PLUS)) {
10124 val = tr32(TG3PCI_DMA_RW_CTRL) &
10125 ~DMA_RWCTRL_DIS_CACHE_ALIGNMENT;
10126 if (tg3_chip_rev_id(tp) == CHIPREV_ID_57765_A0)
10127 val &= ~DMA_RWCTRL_CRDRDR_RDMA_MRRS_MSK;
10128 if (!tg3_flag(tp, 57765_CLASS) &&
10129 tg3_asic_rev(tp) != ASIC_REV_5717 &&
10130 tg3_asic_rev(tp) != ASIC_REV_5762)
10131 val |= DMA_RWCTRL_TAGGED_STAT_WA;
10132 tw32(TG3PCI_DMA_RW_CTRL, val | tp->dma_rwctrl);
10133 } else if (tg3_asic_rev(tp) != ASIC_REV_5784 &&
10134 tg3_asic_rev(tp) != ASIC_REV_5761) {
10135 /* This value is determined during the probe time DMA
10136 * engine test, tg3_test_dma.
10137 */
10138 tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
10139 }
10140
10141 tp->grc_mode &= ~(GRC_MODE_HOST_SENDBDS |
10142 GRC_MODE_4X_NIC_SEND_RINGS |
10143 GRC_MODE_NO_TX_PHDR_CSUM |
10144 GRC_MODE_NO_RX_PHDR_CSUM);
10145 tp->grc_mode |= GRC_MODE_HOST_SENDBDS;
10146
10147 /* Pseudo-header checksum is done by hardware logic and not
10148 * the offload processors, so make the chip do the pseudo-
10149 * header checksums on receive. For transmit it is more
10150 * convenient to do the pseudo-header checksum in software
10151 * as Linux does that on transmit for us in all cases.
10152 */
10153 tp->grc_mode |= GRC_MODE_NO_TX_PHDR_CSUM;
10154
10155 val = GRC_MODE_IRQ_ON_MAC_ATTN | GRC_MODE_HOST_STACKUP;
10156 if (tp->rxptpctl)
10157 tw32(TG3_RX_PTP_CTL,
10158 tp->rxptpctl | TG3_RX_PTP_CTL_HWTS_INTERLOCK);
10159
10160 if (tg3_flag(tp, PTP_CAPABLE))
10161 val |= GRC_MODE_TIME_SYNC_ENABLE;
10162
10163 tw32(GRC_MODE, tp->grc_mode | val);
10164
10165 /* On one of the AMD platform, MRRS is restricted to 4000 because of
10166 * south bridge limitation. As a workaround, Driver is setting MRRS
10167 * to 2048 instead of default 4096.
10168 */
10169 if (tp->pdev->subsystem_vendor == PCI_VENDOR_ID_DELL &&
10170 tp->pdev->subsystem_device == TG3PCI_SUBDEVICE_ID_DELL_5762) {
10171 val = tr32(TG3PCI_DEV_STATUS_CTRL) & ~MAX_READ_REQ_MASK;
10172 tw32(TG3PCI_DEV_STATUS_CTRL, val | MAX_READ_REQ_SIZE_2048);
10173 }
10174
10175 /* Setup the timer prescalar register. Clock is always 66Mhz. */
10176 val = tr32(GRC_MISC_CFG);
10177 val &= ~0xff;
10178 val |= (65 << GRC_MISC_CFG_PRESCALAR_SHIFT);
10179 tw32(GRC_MISC_CFG, val);
10180
10181 /* Initialize MBUF/DESC pool. */
10182 if (tg3_flag(tp, 5750_PLUS)) {
10183 /* Do nothing. */
10184 } else if (tg3_asic_rev(tp) != ASIC_REV_5705) {
10185 tw32(BUFMGR_MB_POOL_ADDR, NIC_SRAM_MBUF_POOL_BASE);
10186 if (tg3_asic_rev(tp) == ASIC_REV_5704)
10187 tw32(BUFMGR_MB_POOL_SIZE, NIC_SRAM_MBUF_POOL_SIZE64);
10188 else
10189 tw32(BUFMGR_MB_POOL_SIZE, NIC_SRAM_MBUF_POOL_SIZE96);
10190 tw32(BUFMGR_DMA_DESC_POOL_ADDR, NIC_SRAM_DMA_DESC_POOL_BASE);
10191 tw32(BUFMGR_DMA_DESC_POOL_SIZE, NIC_SRAM_DMA_DESC_POOL_SIZE);
10192 } else if (tg3_flag(tp, TSO_CAPABLE)) {
10193 int fw_len;
10194
10195 fw_len = tp->fw_len;
10196 fw_len = (fw_len + (0x80 - 1)) & ~(0x80 - 1);
10197 tw32(BUFMGR_MB_POOL_ADDR,
10198 NIC_SRAM_MBUF_POOL_BASE5705 + fw_len);
10199 tw32(BUFMGR_MB_POOL_SIZE,
10200 NIC_SRAM_MBUF_POOL_SIZE5705 - fw_len - 0xa00);
10201 }
10202
10203 if (tp->dev->mtu <= ETH_DATA_LEN) {
10204 tw32(BUFMGR_MB_RDMA_LOW_WATER,
10205 tp->bufmgr_config.mbuf_read_dma_low_water);
10206 tw32(BUFMGR_MB_MACRX_LOW_WATER,
10207 tp->bufmgr_config.mbuf_mac_rx_low_water);
10208 tw32(BUFMGR_MB_HIGH_WATER,
10209 tp->bufmgr_config.mbuf_high_water);
10210 } else {
10211 tw32(BUFMGR_MB_RDMA_LOW_WATER,
10212 tp->bufmgr_config.mbuf_read_dma_low_water_jumbo);
10213 tw32(BUFMGR_MB_MACRX_LOW_WATER,
10214 tp->bufmgr_config.mbuf_mac_rx_low_water_jumbo);
10215 tw32(BUFMGR_MB_HIGH_WATER,
10216 tp->bufmgr_config.mbuf_high_water_jumbo);
10217 }
10218 tw32(BUFMGR_DMA_LOW_WATER,
10219 tp->bufmgr_config.dma_low_water);
10220 tw32(BUFMGR_DMA_HIGH_WATER,
10221 tp->bufmgr_config.dma_high_water);
10222
10223 val = BUFMGR_MODE_ENABLE | BUFMGR_MODE_ATTN_ENABLE;
10224 if (tg3_asic_rev(tp) == ASIC_REV_5719)
10225 val |= BUFMGR_MODE_NO_TX_UNDERRUN;
10226 if (tg3_asic_rev(tp) == ASIC_REV_5717 ||
10227 tg3_asic_rev(tp) == ASIC_REV_5762 ||
10228 tg3_chip_rev_id(tp) == CHIPREV_ID_5719_A0 ||
10229 tg3_chip_rev_id(tp) == CHIPREV_ID_5720_A0)
10230 val |= BUFMGR_MODE_MBLOW_ATTN_ENAB;
10231 tw32(BUFMGR_MODE, val);
10232 for (i = 0; i < 2000; i++) {
10233 if (tr32(BUFMGR_MODE) & BUFMGR_MODE_ENABLE)
10234 break;
10235 udelay(usec: 10);
10236 }
10237 if (i >= 2000) {
10238 netdev_err(dev: tp->dev, format: "%s cannot enable BUFMGR\n", __func__);
10239 return -ENODEV;
10240 }
10241
10242 if (tg3_chip_rev_id(tp) == CHIPREV_ID_5906_A1)
10243 tw32(ISO_PKT_TX, (tr32(ISO_PKT_TX) & ~0x3) | 0x2);
10244
10245 tg3_setup_rxbd_thresholds(tp);
10246
10247 /* Initialize TG3_BDINFO's at:
10248 * RCVDBDI_STD_BD: standard eth size rx ring
10249 * RCVDBDI_JUMBO_BD: jumbo frame rx ring
10250 * RCVDBDI_MINI_BD: small frame rx ring (??? does not work)
10251 *
10252 * like so:
10253 * TG3_BDINFO_HOST_ADDR: high/low parts of DMA address of ring
10254 * TG3_BDINFO_MAXLEN_FLAGS: (rx max buffer size << 16) |
10255 * ring attribute flags
10256 * TG3_BDINFO_NIC_ADDR: location of descriptors in nic SRAM
10257 *
10258 * Standard receive ring @ NIC_SRAM_RX_BUFFER_DESC, 512 entries.
10259 * Jumbo receive ring @ NIC_SRAM_RX_JUMBO_BUFFER_DESC, 256 entries.
10260 *
10261 * The size of each ring is fixed in the firmware, but the location is
10262 * configurable.
10263 */
10264 tw32(RCVDBDI_STD_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_HIGH,
10265 ((u64) tpr->rx_std_mapping >> 32));
10266 tw32(RCVDBDI_STD_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_LOW,
10267 ((u64) tpr->rx_std_mapping & 0xffffffff));
10268 if (!tg3_flag(tp, 5717_PLUS))
10269 tw32(RCVDBDI_STD_BD + TG3_BDINFO_NIC_ADDR,
10270 NIC_SRAM_RX_BUFFER_DESC);
10271
10272 /* Disable the mini ring */
10273 if (!tg3_flag(tp, 5705_PLUS))
10274 tw32(RCVDBDI_MINI_BD + TG3_BDINFO_MAXLEN_FLAGS,
10275 BDINFO_FLAGS_DISABLED);
10276
10277 /* Program the jumbo buffer descriptor ring control
10278 * blocks on those devices that have them.
10279 */
10280 if (tg3_chip_rev_id(tp) == CHIPREV_ID_5719_A0 ||
10281 (tg3_flag(tp, JUMBO_CAPABLE) && !tg3_flag(tp, 5780_CLASS))) {
10282
10283 if (tg3_flag(tp, JUMBO_RING_ENABLE)) {
10284 tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_HIGH,
10285 ((u64) tpr->rx_jmb_mapping >> 32));
10286 tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_LOW,
10287 ((u64) tpr->rx_jmb_mapping & 0xffffffff));
10288 val = TG3_RX_JMB_RING_SIZE(tp) <<
10289 BDINFO_FLAGS_MAXLEN_SHIFT;
10290 tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_MAXLEN_FLAGS,
10291 val | BDINFO_FLAGS_USE_EXT_RECV);
10292 if (!tg3_flag(tp, USE_JUMBO_BDFLAG) ||
10293 tg3_flag(tp, 57765_CLASS) ||
10294 tg3_asic_rev(tp) == ASIC_REV_5762)
10295 tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_NIC_ADDR,
10296 NIC_SRAM_RX_JUMBO_BUFFER_DESC);
10297 } else {
10298 tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_MAXLEN_FLAGS,
10299 BDINFO_FLAGS_DISABLED);
10300 }
10301
10302 if (tg3_flag(tp, 57765_PLUS)) {
10303 val = TG3_RX_STD_RING_SIZE(tp);
10304 val <<= BDINFO_FLAGS_MAXLEN_SHIFT;
10305 val |= (TG3_RX_STD_DMA_SZ << 2);
10306 } else
10307 val = TG3_RX_STD_DMA_SZ << BDINFO_FLAGS_MAXLEN_SHIFT;
10308 } else
10309 val = TG3_RX_STD_MAX_SIZE_5700 << BDINFO_FLAGS_MAXLEN_SHIFT;
10310
10311 tw32(RCVDBDI_STD_BD + TG3_BDINFO_MAXLEN_FLAGS, val);
10312
10313 tpr->rx_std_prod_idx = tp->rx_pending;
10314 tw32_rx_mbox(TG3_RX_STD_PROD_IDX_REG, tpr->rx_std_prod_idx);
10315
10316 tpr->rx_jmb_prod_idx =
10317 tg3_flag(tp, JUMBO_RING_ENABLE) ? tp->rx_jumbo_pending : 0;
10318 tw32_rx_mbox(TG3_RX_JMB_PROD_IDX_REG, tpr->rx_jmb_prod_idx);
10319
10320 tg3_rings_reset(tp);
10321
10322 /* Initialize MAC address and backoff seed. */
10323 __tg3_set_mac_addr(tp, skip_mac_1: false);
10324
10325 /* MTU + ethernet header + FCS + optional VLAN tag */
10326 tw32(MAC_RX_MTU_SIZE,
10327 tp->dev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN);
10328
10329 /* The slot time is changed by tg3_setup_phy if we
10330 * run at gigabit with half duplex.
10331 */
10332 val = (2 << TX_LENGTHS_IPG_CRS_SHIFT) |
10333 (6 << TX_LENGTHS_IPG_SHIFT) |
10334 (32 << TX_LENGTHS_SLOT_TIME_SHIFT);
10335
10336 if (tg3_asic_rev(tp) == ASIC_REV_5720 ||
10337 tg3_asic_rev(tp) == ASIC_REV_5762)
10338 val |= tr32(MAC_TX_LENGTHS) &
10339 (TX_LENGTHS_JMB_FRM_LEN_MSK |
10340 TX_LENGTHS_CNT_DWN_VAL_MSK);
10341
10342 tw32(MAC_TX_LENGTHS, val);
10343
10344 /* Receive rules. */
10345 tw32(MAC_RCV_RULE_CFG, RCV_RULE_CFG_DEFAULT_CLASS);
10346 tw32(RCVLPC_CONFIG, 0x0181);
10347
10348 /* Calculate RDMAC_MODE setting early, we need it to determine
10349 * the RCVLPC_STATE_ENABLE mask.
10350 */
10351 rdmac_mode = (RDMAC_MODE_ENABLE | RDMAC_MODE_TGTABORT_ENAB |
10352 RDMAC_MODE_MSTABORT_ENAB | RDMAC_MODE_PARITYERR_ENAB |
10353 RDMAC_MODE_ADDROFLOW_ENAB | RDMAC_MODE_FIFOOFLOW_ENAB |
10354 RDMAC_MODE_FIFOURUN_ENAB | RDMAC_MODE_FIFOOREAD_ENAB |
10355 RDMAC_MODE_LNGREAD_ENAB);
10356
10357 if (tg3_asic_rev(tp) == ASIC_REV_5717)
10358 rdmac_mode |= RDMAC_MODE_MULT_DMA_RD_DIS;
10359
10360 if (tg3_asic_rev(tp) == ASIC_REV_5784 ||
10361 tg3_asic_rev(tp) == ASIC_REV_5785 ||
10362 tg3_asic_rev(tp) == ASIC_REV_57780)
10363 rdmac_mode |= RDMAC_MODE_BD_SBD_CRPT_ENAB |
10364 RDMAC_MODE_MBUF_RBD_CRPT_ENAB |
10365 RDMAC_MODE_MBUF_SBD_CRPT_ENAB;
10366
10367 if (tg3_asic_rev(tp) == ASIC_REV_5705 &&
10368 tg3_chip_rev_id(tp) != CHIPREV_ID_5705_A0) {
10369 if (tg3_flag(tp, TSO_CAPABLE)) {
10370 rdmac_mode |= RDMAC_MODE_FIFO_SIZE_128;
10371 } else if (!(tr32(TG3PCI_PCISTATE) & PCISTATE_BUS_SPEED_HIGH) &&
10372 !tg3_flag(tp, IS_5788)) {
10373 rdmac_mode |= RDMAC_MODE_FIFO_LONG_BURST;
10374 }
10375 }
10376
10377 if (tg3_flag(tp, PCI_EXPRESS))
10378 rdmac_mode |= RDMAC_MODE_FIFO_LONG_BURST;
10379
10380 if (tg3_asic_rev(tp) == ASIC_REV_57766) {
10381 tp->dma_limit = 0;
10382 if (tp->dev->mtu <= ETH_DATA_LEN) {
10383 rdmac_mode |= RDMAC_MODE_JMB_2K_MMRR;
10384 tp->dma_limit = TG3_TX_BD_DMA_MAX_2K;
10385 }
10386 }
10387
10388 if (tg3_flag(tp, HW_TSO_1) ||
10389 tg3_flag(tp, HW_TSO_2) ||
10390 tg3_flag(tp, HW_TSO_3))
10391 rdmac_mode |= RDMAC_MODE_IPV4_LSO_EN;
10392
10393 if (tg3_flag(tp, 57765_PLUS) ||
10394 tg3_asic_rev(tp) == ASIC_REV_5785 ||
10395 tg3_asic_rev(tp) == ASIC_REV_57780)
10396 rdmac_mode |= RDMAC_MODE_IPV6_LSO_EN;
10397
10398 if (tg3_asic_rev(tp) == ASIC_REV_5720 ||
10399 tg3_asic_rev(tp) == ASIC_REV_5762)
10400 rdmac_mode |= tr32(RDMAC_MODE) & RDMAC_MODE_H2BNC_VLAN_DET;
10401
10402 if (tg3_asic_rev(tp) == ASIC_REV_5761 ||
10403 tg3_asic_rev(tp) == ASIC_REV_5784 ||
10404 tg3_asic_rev(tp) == ASIC_REV_5785 ||
10405 tg3_asic_rev(tp) == ASIC_REV_57780 ||
10406 tg3_flag(tp, 57765_PLUS)) {
10407 u32 tgtreg;
10408
10409 if (tg3_asic_rev(tp) == ASIC_REV_5762)
10410 tgtreg = TG3_RDMA_RSRVCTRL_REG2;
10411 else
10412 tgtreg = TG3_RDMA_RSRVCTRL_REG;
10413
10414 val = tr32(tgtreg);
10415 if (tg3_chip_rev_id(tp) == CHIPREV_ID_5719_A0 ||
10416 tg3_asic_rev(tp) == ASIC_REV_5762) {
10417 val &= ~(TG3_RDMA_RSRVCTRL_TXMRGN_MASK |
10418 TG3_RDMA_RSRVCTRL_FIFO_LWM_MASK |
10419 TG3_RDMA_RSRVCTRL_FIFO_HWM_MASK);
10420 val |= TG3_RDMA_RSRVCTRL_TXMRGN_320B |
10421 TG3_RDMA_RSRVCTRL_FIFO_LWM_1_5K |
10422 TG3_RDMA_RSRVCTRL_FIFO_HWM_1_5K;
10423 }
10424 tw32(tgtreg, val | TG3_RDMA_RSRVCTRL_FIFO_OFLW_FIX);
10425 }
10426
10427 if (tg3_asic_rev(tp) == ASIC_REV_5719 ||
10428 tg3_asic_rev(tp) == ASIC_REV_5720 ||
10429 tg3_asic_rev(tp) == ASIC_REV_5762) {
10430 u32 tgtreg;
10431
10432 if (tg3_asic_rev(tp) == ASIC_REV_5762)
10433 tgtreg = TG3_LSO_RD_DMA_CRPTEN_CTRL2;
10434 else
10435 tgtreg = TG3_LSO_RD_DMA_CRPTEN_CTRL;
10436
10437 val = tr32(tgtreg);
10438 tw32(tgtreg, val |
10439 TG3_LSO_RD_DMA_CRPTEN_CTRL_BLEN_BD_4K |
10440 TG3_LSO_RD_DMA_CRPTEN_CTRL_BLEN_LSO_4K);
10441 }
10442
10443 /* Receive/send statistics. */
10444 if (tg3_flag(tp, 5750_PLUS)) {
10445 val = tr32(RCVLPC_STATS_ENABLE);
10446 val &= ~RCVLPC_STATSENAB_DACK_FIX;
10447 tw32(RCVLPC_STATS_ENABLE, val);
10448 } else if ((rdmac_mode & RDMAC_MODE_FIFO_SIZE_128) &&
10449 tg3_flag(tp, TSO_CAPABLE)) {
10450 val = tr32(RCVLPC_STATS_ENABLE);
10451 val &= ~RCVLPC_STATSENAB_LNGBRST_RFIX;
10452 tw32(RCVLPC_STATS_ENABLE, val);
10453 } else {
10454 tw32(RCVLPC_STATS_ENABLE, 0xffffff);
10455 }
10456 tw32(RCVLPC_STATSCTRL, RCVLPC_STATSCTRL_ENABLE);
10457 tw32(SNDDATAI_STATSENAB, 0xffffff);
10458 tw32(SNDDATAI_STATSCTRL,
10459 (SNDDATAI_SCTRL_ENABLE |
10460 SNDDATAI_SCTRL_FASTUPD));
10461
10462 /* Setup host coalescing engine. */
10463 tw32(HOSTCC_MODE, 0);
10464 for (i = 0; i < 2000; i++) {
10465 if (!(tr32(HOSTCC_MODE) & HOSTCC_MODE_ENABLE))
10466 break;
10467 udelay(usec: 10);
10468 }
10469
10470 __tg3_set_coalesce(tp, ec: &tp->coal);
10471
10472 if (!tg3_flag(tp, 5705_PLUS)) {
10473 /* Status/statistics block address. See tg3_timer,
10474 * the tg3_periodic_fetch_stats call there, and
10475 * tg3_get_stats to see how this works for 5705/5750 chips.
10476 */
10477 tw32(HOSTCC_STATS_BLK_HOST_ADDR + TG3_64BIT_REG_HIGH,
10478 ((u64) tp->stats_mapping >> 32));
10479 tw32(HOSTCC_STATS_BLK_HOST_ADDR + TG3_64BIT_REG_LOW,
10480 ((u64) tp->stats_mapping & 0xffffffff));
10481 tw32(HOSTCC_STATS_BLK_NIC_ADDR, NIC_SRAM_STATS_BLK);
10482
10483 tw32(HOSTCC_STATUS_BLK_NIC_ADDR, NIC_SRAM_STATUS_BLK);
10484
10485 /* Clear statistics and status block memory areas */
10486 for (i = NIC_SRAM_STATS_BLK;
10487 i < NIC_SRAM_STATUS_BLK + TG3_HW_STATUS_SIZE;
10488 i += sizeof(u32)) {
10489 tg3_write_mem(tp, off: i, val: 0);
10490 udelay(usec: 40);
10491 }
10492 }
10493
10494 tw32(HOSTCC_MODE, HOSTCC_MODE_ENABLE | tp->coalesce_mode);
10495
10496 tw32(RCVCC_MODE, RCVCC_MODE_ENABLE | RCVCC_MODE_ATTN_ENABLE);
10497 tw32(RCVLPC_MODE, RCVLPC_MODE_ENABLE);
10498 if (!tg3_flag(tp, 5705_PLUS))
10499 tw32(RCVLSC_MODE, RCVLSC_MODE_ENABLE | RCVLSC_MODE_ATTN_ENABLE);
10500
10501 if (tp->phy_flags & TG3_PHYFLG_MII_SERDES) {
10502 tp->phy_flags &= ~TG3_PHYFLG_PARALLEL_DETECT;
10503 /* reset to prevent losing 1st rx packet intermittently */
10504 tw32_f(MAC_RX_MODE, RX_MODE_RESET);
10505 udelay(usec: 10);
10506 }
10507
10508 tp->mac_mode |= MAC_MODE_TXSTAT_ENABLE | MAC_MODE_RXSTAT_ENABLE |
10509 MAC_MODE_TDE_ENABLE | MAC_MODE_RDE_ENABLE |
10510 MAC_MODE_FHDE_ENABLE;
10511 if (tg3_flag(tp, ENABLE_APE))
10512 tp->mac_mode |= MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN;
10513 if (!tg3_flag(tp, 5705_PLUS) &&
10514 !(tp->phy_flags & TG3_PHYFLG_PHY_SERDES) &&
10515 tg3_asic_rev(tp) != ASIC_REV_5700)
10516 tp->mac_mode |= MAC_MODE_LINK_POLARITY;
10517 tw32_f(MAC_MODE, tp->mac_mode | MAC_MODE_RXSTAT_CLEAR | MAC_MODE_TXSTAT_CLEAR);
10518 udelay(usec: 40);
10519
10520 /* tp->grc_local_ctrl is partially set up during tg3_get_invariants().
10521 * If TG3_FLAG_IS_NIC is zero, we should read the
10522 * register to preserve the GPIO settings for LOMs. The GPIOs,
10523 * whether used as inputs or outputs, are set by boot code after
10524 * reset.
10525 */
10526 if (!tg3_flag(tp, IS_NIC)) {
10527 u32 gpio_mask;
10528
10529 gpio_mask = GRC_LCLCTRL_GPIO_OE0 | GRC_LCLCTRL_GPIO_OE1 |
10530 GRC_LCLCTRL_GPIO_OE2 | GRC_LCLCTRL_GPIO_OUTPUT0 |
10531 GRC_LCLCTRL_GPIO_OUTPUT1 | GRC_LCLCTRL_GPIO_OUTPUT2;
10532
10533 if (tg3_asic_rev(tp) == ASIC_REV_5752)
10534 gpio_mask |= GRC_LCLCTRL_GPIO_OE3 |
10535 GRC_LCLCTRL_GPIO_OUTPUT3;
10536
10537 if (tg3_asic_rev(tp) == ASIC_REV_5755)
10538 gpio_mask |= GRC_LCLCTRL_GPIO_UART_SEL;
10539
10540 tp->grc_local_ctrl &= ~gpio_mask;
10541 tp->grc_local_ctrl |= tr32(GRC_LOCAL_CTRL) & gpio_mask;
10542
10543 /* GPIO1 must be driven high for eeprom write protect */
10544 if (tg3_flag(tp, EEPROM_WRITE_PROT))
10545 tp->grc_local_ctrl |= (GRC_LCLCTRL_GPIO_OE1 |
10546 GRC_LCLCTRL_GPIO_OUTPUT1);
10547 }
10548 tw32_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl);
10549 udelay(usec: 100);
10550
10551 if (tg3_flag(tp, USING_MSIX)) {
10552 val = tr32(MSGINT_MODE);
10553 val |= MSGINT_MODE_ENABLE;
10554 if (tp->irq_cnt > 1)
10555 val |= MSGINT_MODE_MULTIVEC_EN;
10556 if (!tg3_flag(tp, 1SHOT_MSI))
10557 val |= MSGINT_MODE_ONE_SHOT_DISABLE;
10558 tw32(MSGINT_MODE, val);
10559 }
10560
10561 if (!tg3_flag(tp, 5705_PLUS)) {
10562 tw32_f(DMAC_MODE, DMAC_MODE_ENABLE);
10563 udelay(usec: 40);
10564 }
10565
10566 val = (WDMAC_MODE_ENABLE | WDMAC_MODE_TGTABORT_ENAB |
10567 WDMAC_MODE_MSTABORT_ENAB | WDMAC_MODE_PARITYERR_ENAB |
10568 WDMAC_MODE_ADDROFLOW_ENAB | WDMAC_MODE_FIFOOFLOW_ENAB |
10569 WDMAC_MODE_FIFOURUN_ENAB | WDMAC_MODE_FIFOOREAD_ENAB |
10570 WDMAC_MODE_LNGREAD_ENAB);
10571
10572 if (tg3_asic_rev(tp) == ASIC_REV_5705 &&
10573 tg3_chip_rev_id(tp) != CHIPREV_ID_5705_A0) {
10574 if (tg3_flag(tp, TSO_CAPABLE) &&
10575 (tg3_chip_rev_id(tp) == CHIPREV_ID_5705_A1 ||
10576 tg3_chip_rev_id(tp) == CHIPREV_ID_5705_A2)) {
10577 /* nothing */
10578 } else if (!(tr32(TG3PCI_PCISTATE) & PCISTATE_BUS_SPEED_HIGH) &&
10579 !tg3_flag(tp, IS_5788)) {
10580 val |= WDMAC_MODE_RX_ACCEL;
10581 }
10582 }
10583
10584 /* Enable host coalescing bug fix */
10585 if (tg3_flag(tp, 5755_PLUS))
10586 val |= WDMAC_MODE_STATUS_TAG_FIX;
10587
10588 if (tg3_asic_rev(tp) == ASIC_REV_5785)
10589 val |= WDMAC_MODE_BURST_ALL_DATA;
10590
10591 tw32_f(WDMAC_MODE, val);
10592 udelay(usec: 40);
10593
10594 if (tg3_flag(tp, PCIX_MODE)) {
10595 u16 pcix_cmd;
10596
10597 pci_read_config_word(dev: tp->pdev, where: tp->pcix_cap + PCI_X_CMD,
10598 val: &pcix_cmd);
10599 if (tg3_asic_rev(tp) == ASIC_REV_5703) {
10600 pcix_cmd &= ~PCI_X_CMD_MAX_READ;
10601 pcix_cmd |= PCI_X_CMD_READ_2K;
10602 } else if (tg3_asic_rev(tp) == ASIC_REV_5704) {
10603 pcix_cmd &= ~(PCI_X_CMD_MAX_SPLIT | PCI_X_CMD_MAX_READ);
10604 pcix_cmd |= PCI_X_CMD_READ_2K;
10605 }
10606 pci_write_config_word(dev: tp->pdev, where: tp->pcix_cap + PCI_X_CMD,
10607 val: pcix_cmd);
10608 }
10609
10610 tw32_f(RDMAC_MODE, rdmac_mode);
10611 udelay(usec: 40);
10612
10613 if (tg3_asic_rev(tp) == ASIC_REV_5719 ||
10614 tg3_asic_rev(tp) == ASIC_REV_5720) {
10615 for (i = 0; i < TG3_NUM_RDMA_CHANNELS; i++) {
10616 if (tr32(TG3_RDMA_LENGTH + (i << 2)) > TG3_MAX_MTU(tp))
10617 break;
10618 }
10619 if (i < TG3_NUM_RDMA_CHANNELS) {
10620 val = tr32(TG3_LSO_RD_DMA_CRPTEN_CTRL);
10621 val |= tg3_lso_rd_dma_workaround_bit(tp);
10622 tw32(TG3_LSO_RD_DMA_CRPTEN_CTRL, val);
10623 tg3_flag_set(tp, 5719_5720_RDMA_BUG);
10624 }
10625 }
10626
10627 tw32(RCVDCC_MODE, RCVDCC_MODE_ENABLE | RCVDCC_MODE_ATTN_ENABLE);
10628 if (!tg3_flag(tp, 5705_PLUS))
10629 tw32(MBFREE_MODE, MBFREE_MODE_ENABLE);
10630
10631 if (tg3_asic_rev(tp) == ASIC_REV_5761)
10632 tw32(SNDDATAC_MODE,
10633 SNDDATAC_MODE_ENABLE | SNDDATAC_MODE_CDELAY);
10634 else
10635 tw32(SNDDATAC_MODE, SNDDATAC_MODE_ENABLE);
10636
10637 tw32(SNDBDC_MODE, SNDBDC_MODE_ENABLE | SNDBDC_MODE_ATTN_ENABLE);
10638 tw32(RCVBDI_MODE, RCVBDI_MODE_ENABLE | RCVBDI_MODE_RCB_ATTN_ENAB);
10639 val = RCVDBDI_MODE_ENABLE | RCVDBDI_MODE_INV_RING_SZ;
10640 if (tg3_flag(tp, LRG_PROD_RING_CAP))
10641 val |= RCVDBDI_MODE_LRG_RING_SZ;
10642 tw32(RCVDBDI_MODE, val);
10643 tw32(SNDDATAI_MODE, SNDDATAI_MODE_ENABLE);
10644 if (tg3_flag(tp, HW_TSO_1) ||
10645 tg3_flag(tp, HW_TSO_2) ||
10646 tg3_flag(tp, HW_TSO_3))
10647 tw32(SNDDATAI_MODE, SNDDATAI_MODE_ENABLE | 0x8);
10648 val = SNDBDI_MODE_ENABLE | SNDBDI_MODE_ATTN_ENABLE;
10649 if (tg3_flag(tp, ENABLE_TSS))
10650 val |= SNDBDI_MODE_MULTI_TXQ_EN;
10651 tw32(SNDBDI_MODE, val);
10652 tw32(SNDBDS_MODE, SNDBDS_MODE_ENABLE | SNDBDS_MODE_ATTN_ENABLE);
10653
10654 if (tg3_chip_rev_id(tp) == CHIPREV_ID_5701_A0) {
10655 err = tg3_load_5701_a0_firmware_fix(tp);
10656 if (err)
10657 return err;
10658 }
10659
10660 if (tg3_asic_rev(tp) == ASIC_REV_57766) {
10661 /* Ignore any errors for the firmware download. If download
10662 * fails, the device will operate with EEE disabled
10663 */
10664 tg3_load_57766_firmware(tp);
10665 }
10666
10667 if (tg3_flag(tp, TSO_CAPABLE)) {
10668 err = tg3_load_tso_firmware(tp);
10669 if (err)
10670 return err;
10671 }
10672
10673 tp->tx_mode = TX_MODE_ENABLE;
10674
10675 if (tg3_flag(tp, 5755_PLUS) ||
10676 tg3_asic_rev(tp) == ASIC_REV_5906)
10677 tp->tx_mode |= TX_MODE_MBUF_LOCKUP_FIX;
10678
10679 if (tg3_asic_rev(tp) == ASIC_REV_5720 ||
10680 tg3_asic_rev(tp) == ASIC_REV_5762) {
10681 val = TX_MODE_JMB_FRM_LEN | TX_MODE_CNT_DN_MODE;
10682 tp->tx_mode &= ~val;
10683 tp->tx_mode |= tr32(MAC_TX_MODE) & val;
10684 }
10685
10686 tw32_f(MAC_TX_MODE, tp->tx_mode);
10687 udelay(usec: 100);
10688
10689 if (tg3_flag(tp, ENABLE_RSS)) {
10690 u32 rss_key[10];
10691
10692 tg3_rss_write_indir_tbl(tp);
10693
10694 netdev_rss_key_fill(buffer: rss_key, len: 10 * sizeof(u32));
10695
10696 for (i = 0; i < 10 ; i++)
10697 tw32(MAC_RSS_HASH_KEY_0 + i*4, rss_key[i]);
10698 }
10699
10700 tp->rx_mode = RX_MODE_ENABLE;
10701 if (tg3_flag(tp, 5755_PLUS))
10702 tp->rx_mode |= RX_MODE_IPV6_CSUM_ENABLE;
10703
10704 if (tg3_asic_rev(tp) == ASIC_REV_5762)
10705 tp->rx_mode |= RX_MODE_IPV4_FRAG_FIX;
10706
10707 if (tg3_flag(tp, ENABLE_RSS))
10708 tp->rx_mode |= RX_MODE_RSS_ENABLE |
10709 RX_MODE_RSS_ITBL_HASH_BITS_7 |
10710 RX_MODE_RSS_IPV6_HASH_EN |
10711 RX_MODE_RSS_TCP_IPV6_HASH_EN |
10712 RX_MODE_RSS_IPV4_HASH_EN |
10713 RX_MODE_RSS_TCP_IPV4_HASH_EN;
10714
10715 tw32_f(MAC_RX_MODE, tp->rx_mode);
10716 udelay(usec: 10);
10717
10718 tw32(MAC_LED_CTRL, tp->led_ctrl);
10719
10720 tw32(MAC_MI_STAT, MAC_MI_STAT_LNKSTAT_ATTN_ENAB);
10721 if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES) {
10722 tw32_f(MAC_RX_MODE, RX_MODE_RESET);
10723 udelay(usec: 10);
10724 }
10725 tw32_f(MAC_RX_MODE, tp->rx_mode);
10726 udelay(usec: 10);
10727
10728 if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES) {
10729 if ((tg3_asic_rev(tp) == ASIC_REV_5704) &&
10730 !(tp->phy_flags & TG3_PHYFLG_SERDES_PREEMPHASIS)) {
10731 /* Set drive transmission level to 1.2V */
10732 /* only if the signal pre-emphasis bit is not set */
10733 val = tr32(MAC_SERDES_CFG);
10734 val &= 0xfffff000;
10735 val |= 0x880;
10736 tw32(MAC_SERDES_CFG, val);
10737 }
10738 if (tg3_chip_rev_id(tp) == CHIPREV_ID_5703_A1)
10739 tw32(MAC_SERDES_CFG, 0x616000);
10740 }
10741
10742 /* Prevent chip from dropping frames when flow control
10743 * is enabled.
10744 */
10745 if (tg3_flag(tp, 57765_CLASS))
10746 val = 1;
10747 else
10748 val = 2;
10749 tw32_f(MAC_LOW_WMARK_MAX_RX_FRAME, val);
10750
10751 if (tg3_asic_rev(tp) == ASIC_REV_5704 &&
10752 (tp->phy_flags & TG3_PHYFLG_PHY_SERDES)) {
10753 /* Use hardware link auto-negotiation */
10754 tg3_flag_set(tp, HW_AUTONEG);
10755 }
10756
10757 if ((tp->phy_flags & TG3_PHYFLG_MII_SERDES) &&
10758 tg3_asic_rev(tp) == ASIC_REV_5714) {
10759 u32 tmp;
10760
10761 tmp = tr32(SERDES_RX_CTRL);
10762 tw32(SERDES_RX_CTRL, tmp | SERDES_RX_SIG_DETECT);
10763 tp->grc_local_ctrl &= ~GRC_LCLCTRL_USE_EXT_SIG_DETECT;
10764 tp->grc_local_ctrl |= GRC_LCLCTRL_USE_SIG_DETECT;
10765 tw32(GRC_LOCAL_CTRL, tp->grc_local_ctrl);
10766 }
10767
10768 if (!tg3_flag(tp, USE_PHYLIB)) {
10769 if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)
10770 tp->phy_flags &= ~TG3_PHYFLG_IS_LOW_POWER;
10771
10772 err = tg3_setup_phy(tp, force_reset: false);
10773 if (err)
10774 return err;
10775
10776 if (!(tp->phy_flags & TG3_PHYFLG_PHY_SERDES) &&
10777 !(tp->phy_flags & TG3_PHYFLG_IS_FET)) {
10778 u32 tmp;
10779
10780 /* Clear CRC stats. */
10781 if (!tg3_readphy(tp, MII_TG3_TEST1, val: &tmp)) {
10782 tg3_writephy(tp, MII_TG3_TEST1,
10783 val: tmp | MII_TG3_TEST1_CRC_EN);
10784 tg3_readphy(tp, MII_TG3_RXR_COUNTERS, val: &tmp);
10785 }
10786 }
10787 }
10788
10789 __tg3_set_rx_mode(dev: tp->dev);
10790
10791 /* Initialize receive rules. */
10792 tw32(MAC_RCV_RULE_0, 0xc2000000 & RCV_RULE_DISABLE_MASK);
10793 tw32(MAC_RCV_VALUE_0, 0xffffffff & RCV_RULE_DISABLE_MASK);
10794 tw32(MAC_RCV_RULE_1, 0x86000004 & RCV_RULE_DISABLE_MASK);
10795 tw32(MAC_RCV_VALUE_1, 0xffffffff & RCV_RULE_DISABLE_MASK);
10796
10797 if (tg3_flag(tp, 5705_PLUS) && !tg3_flag(tp, 5780_CLASS))
10798 limit = 8;
10799 else
10800 limit = 16;
10801 if (tg3_flag(tp, ENABLE_ASF))
10802 limit -= 4;
10803 switch (limit) {
10804 case 16:
10805 tw32(MAC_RCV_RULE_15, 0); tw32(MAC_RCV_VALUE_15, 0);
10806 fallthrough;
10807 case 15:
10808 tw32(MAC_RCV_RULE_14, 0); tw32(MAC_RCV_VALUE_14, 0);
10809 fallthrough;
10810 case 14:
10811 tw32(MAC_RCV_RULE_13, 0); tw32(MAC_RCV_VALUE_13, 0);
10812 fallthrough;
10813 case 13:
10814 tw32(MAC_RCV_RULE_12, 0); tw32(MAC_RCV_VALUE_12, 0);
10815 fallthrough;
10816 case 12:
10817 tw32(MAC_RCV_RULE_11, 0); tw32(MAC_RCV_VALUE_11, 0);
10818 fallthrough;
10819 case 11:
10820 tw32(MAC_RCV_RULE_10, 0); tw32(MAC_RCV_VALUE_10, 0);
10821 fallthrough;
10822 case 10:
10823 tw32(MAC_RCV_RULE_9, 0); tw32(MAC_RCV_VALUE_9, 0);
10824 fallthrough;
10825 case 9:
10826 tw32(MAC_RCV_RULE_8, 0); tw32(MAC_RCV_VALUE_8, 0);
10827 fallthrough;
10828 case 8:
10829 tw32(MAC_RCV_RULE_7, 0); tw32(MAC_RCV_VALUE_7, 0);
10830 fallthrough;
10831 case 7:
10832 tw32(MAC_RCV_RULE_6, 0); tw32(MAC_RCV_VALUE_6, 0);
10833 fallthrough;
10834 case 6:
10835 tw32(MAC_RCV_RULE_5, 0); tw32(MAC_RCV_VALUE_5, 0);
10836 fallthrough;
10837 case 5:
10838 tw32(MAC_RCV_RULE_4, 0); tw32(MAC_RCV_VALUE_4, 0);
10839 fallthrough;
10840 case 4:
10841 /* tw32(MAC_RCV_RULE_3, 0); tw32(MAC_RCV_VALUE_3, 0); */
10842 case 3:
10843 /* tw32(MAC_RCV_RULE_2, 0); tw32(MAC_RCV_VALUE_2, 0); */
10844 case 2:
10845 case 1:
10846
10847 default:
10848 break;
10849 }
10850
10851 if (tg3_flag(tp, ENABLE_APE))
10852 /* Write our heartbeat update interval to APE. */
10853 tg3_ape_write32(tp, TG3_APE_HOST_HEARTBEAT_INT_MS,
10854 APE_HOST_HEARTBEAT_INT_5SEC);
10855
10856 tg3_write_sig_post_reset(tp, RESET_KIND_INIT);
10857
10858 return 0;
10859}
10860
10861/* Called at device open time to get the chip ready for
10862 * packet processing. Invoked with tp->lock held.
10863 */
10864static int tg3_init_hw(struct tg3 *tp, bool reset_phy)
10865{
10866 /* Chip may have been just powered on. If so, the boot code may still
10867 * be running initialization. Wait for it to finish to avoid races in
10868 * accessing the hardware.
10869 */
10870 tg3_enable_register_access(tp);
10871 tg3_poll_fw(tp);
10872
10873 tg3_switch_clocks(tp);
10874
10875 tw32(TG3PCI_MEM_WIN_BASE_ADDR, 0);
10876
10877 return tg3_reset_hw(tp, reset_phy);
10878}
10879
10880#ifdef CONFIG_TIGON3_HWMON
10881static void tg3_sd_scan_scratchpad(struct tg3 *tp, struct tg3_ocir *ocir)
10882{
10883 u32 off, len = TG3_OCIR_LEN;
10884 int i;
10885
10886 for (i = 0, off = 0; i < TG3_SD_NUM_RECS; i++, ocir++, off += len) {
10887 tg3_ape_scratchpad_read(tp, data: (u32 *) ocir, base_off: off, len);
10888
10889 if (ocir->signature != TG3_OCIR_SIG_MAGIC ||
10890 !(ocir->version_flags & TG3_OCIR_FLAG_ACTIVE))
10891 memset(s: ocir, c: 0, n: len);
10892 }
10893}
10894
10895/* sysfs attributes for hwmon */
10896static ssize_t tg3_show_temp(struct device *dev,
10897 struct device_attribute *devattr, char *buf)
10898{
10899 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
10900 struct tg3 *tp = dev_get_drvdata(dev);
10901 u32 temperature;
10902
10903 spin_lock_bh(lock: &tp->lock);
10904 tg3_ape_scratchpad_read(tp, data: &temperature, base_off: attr->index,
10905 len: sizeof(temperature));
10906 spin_unlock_bh(lock: &tp->lock);
10907 return sprintf(buf, fmt: "%u\n", temperature * 1000);
10908}
10909
10910
10911static SENSOR_DEVICE_ATTR(temp1_input, 0444, tg3_show_temp, NULL,
10912 TG3_TEMP_SENSOR_OFFSET);
10913static SENSOR_DEVICE_ATTR(temp1_crit, 0444, tg3_show_temp, NULL,
10914 TG3_TEMP_CAUTION_OFFSET);
10915static SENSOR_DEVICE_ATTR(temp1_max, 0444, tg3_show_temp, NULL,
10916 TG3_TEMP_MAX_OFFSET);
10917
10918static struct attribute *tg3_attrs[] = {
10919 &sensor_dev_attr_temp1_input.dev_attr.attr,
10920 &sensor_dev_attr_temp1_crit.dev_attr.attr,
10921 &sensor_dev_attr_temp1_max.dev_attr.attr,
10922 NULL
10923};
10924ATTRIBUTE_GROUPS(tg3);
10925
10926static void tg3_hwmon_close(struct tg3 *tp)
10927{
10928 if (tp->hwmon_dev) {
10929 hwmon_device_unregister(dev: tp->hwmon_dev);
10930 tp->hwmon_dev = NULL;
10931 }
10932}
10933
10934static void tg3_hwmon_open(struct tg3 *tp)
10935{
10936 int i;
10937 u32 size = 0;
10938 struct pci_dev *pdev = tp->pdev;
10939 struct tg3_ocir ocirs[TG3_SD_NUM_RECS];
10940
10941 tg3_sd_scan_scratchpad(tp, ocir: ocirs);
10942
10943 for (i = 0; i < TG3_SD_NUM_RECS; i++) {
10944 if (!ocirs[i].src_data_length)
10945 continue;
10946
10947 size += ocirs[i].src_hdr_length;
10948 size += ocirs[i].src_data_length;
10949 }
10950
10951 if (!size)
10952 return;
10953
10954 tp->hwmon_dev = hwmon_device_register_with_groups(dev: &pdev->dev, name: "tg3",
10955 drvdata: tp, groups: tg3_groups);
10956 if (IS_ERR(ptr: tp->hwmon_dev)) {
10957 tp->hwmon_dev = NULL;
10958 dev_err(&pdev->dev, "Cannot register hwmon device, aborting\n");
10959 }
10960}
10961#else
10962static inline void tg3_hwmon_close(struct tg3 *tp) { }
10963static inline void tg3_hwmon_open(struct tg3 *tp) { }
10964#endif /* CONFIG_TIGON3_HWMON */
10965
10966
10967#define TG3_STAT_ADD32(PSTAT, REG) \
10968do { u32 __val = tr32(REG); \
10969 (PSTAT)->low += __val; \
10970 if ((PSTAT)->low < __val) \
10971 (PSTAT)->high += 1; \
10972} while (0)
10973
10974static void tg3_periodic_fetch_stats(struct tg3 *tp)
10975{
10976 struct tg3_hw_stats *sp = tp->hw_stats;
10977
10978 if (!tp->link_up)
10979 return;
10980
10981 TG3_STAT_ADD32(&sp->tx_octets, MAC_TX_STATS_OCTETS);
10982 TG3_STAT_ADD32(&sp->tx_collisions, MAC_TX_STATS_COLLISIONS);
10983 TG3_STAT_ADD32(&sp->tx_xon_sent, MAC_TX_STATS_XON_SENT);
10984 TG3_STAT_ADD32(&sp->tx_xoff_sent, MAC_TX_STATS_XOFF_SENT);
10985 TG3_STAT_ADD32(&sp->tx_mac_errors, MAC_TX_STATS_MAC_ERRORS);
10986 TG3_STAT_ADD32(&sp->tx_single_collisions, MAC_TX_STATS_SINGLE_COLLISIONS);
10987 TG3_STAT_ADD32(&sp->tx_mult_collisions, MAC_TX_STATS_MULT_COLLISIONS);
10988 TG3_STAT_ADD32(&sp->tx_deferred, MAC_TX_STATS_DEFERRED);
10989 TG3_STAT_ADD32(&sp->tx_excessive_collisions, MAC_TX_STATS_EXCESSIVE_COL);
10990 TG3_STAT_ADD32(&sp->tx_late_collisions, MAC_TX_STATS_LATE_COL);
10991 TG3_STAT_ADD32(&sp->tx_ucast_packets, MAC_TX_STATS_UCAST);
10992 TG3_STAT_ADD32(&sp->tx_mcast_packets, MAC_TX_STATS_MCAST);
10993 TG3_STAT_ADD32(&sp->tx_bcast_packets, MAC_TX_STATS_BCAST);
10994 if (unlikely(tg3_flag(tp, 5719_5720_RDMA_BUG) &&
10995 (sp->tx_ucast_packets.low + sp->tx_mcast_packets.low +
10996 sp->tx_bcast_packets.low) > TG3_NUM_RDMA_CHANNELS)) {
10997 u32 val;
10998
10999 val = tr32(TG3_LSO_RD_DMA_CRPTEN_CTRL);
11000 val &= ~tg3_lso_rd_dma_workaround_bit(tp);
11001 tw32(TG3_LSO_RD_DMA_CRPTEN_CTRL, val);
11002 tg3_flag_clear(tp, 5719_5720_RDMA_BUG);
11003 }
11004
11005 TG3_STAT_ADD32(&sp->rx_octets, MAC_RX_STATS_OCTETS);
11006 TG3_STAT_ADD32(&sp->rx_fragments, MAC_RX_STATS_FRAGMENTS);
11007 TG3_STAT_ADD32(&sp->rx_ucast_packets, MAC_RX_STATS_UCAST);
11008 TG3_STAT_ADD32(&sp->rx_mcast_packets, MAC_RX_STATS_MCAST);
11009 TG3_STAT_ADD32(&sp->rx_bcast_packets, MAC_RX_STATS_BCAST);
11010 TG3_STAT_ADD32(&sp->rx_fcs_errors, MAC_RX_STATS_FCS_ERRORS);
11011 TG3_STAT_ADD32(&sp->rx_align_errors, MAC_RX_STATS_ALIGN_ERRORS);
11012 TG3_STAT_ADD32(&sp->rx_xon_pause_rcvd, MAC_RX_STATS_XON_PAUSE_RECVD);
11013 TG3_STAT_ADD32(&sp->rx_xoff_pause_rcvd, MAC_RX_STATS_XOFF_PAUSE_RECVD);
11014 TG3_STAT_ADD32(&sp->rx_mac_ctrl_rcvd, MAC_RX_STATS_MAC_CTRL_RECVD);
11015 TG3_STAT_ADD32(&sp->rx_xoff_entered, MAC_RX_STATS_XOFF_ENTERED);
11016 TG3_STAT_ADD32(&sp->rx_frame_too_long_errors, MAC_RX_STATS_FRAME_TOO_LONG);
11017 TG3_STAT_ADD32(&sp->rx_jabbers, MAC_RX_STATS_JABBERS);
11018 TG3_STAT_ADD32(&sp->rx_undersize_packets, MAC_RX_STATS_UNDERSIZE);
11019
11020 TG3_STAT_ADD32(&sp->rxbds_empty, RCVLPC_NO_RCV_BD_CNT);
11021 if (tg3_asic_rev(tp) != ASIC_REV_5717 &&
11022 tg3_asic_rev(tp) != ASIC_REV_5762 &&
11023 tg3_chip_rev_id(tp) != CHIPREV_ID_5719_A0 &&
11024 tg3_chip_rev_id(tp) != CHIPREV_ID_5720_A0) {
11025 TG3_STAT_ADD32(&sp->rx_discards, RCVLPC_IN_DISCARDS_CNT);
11026 } else {
11027 u32 val = tr32(HOSTCC_FLOW_ATTN);
11028 val = (val & HOSTCC_FLOW_ATTN_MBUF_LWM) ? 1 : 0;
11029 if (val) {
11030 tw32(HOSTCC_FLOW_ATTN, HOSTCC_FLOW_ATTN_MBUF_LWM);
11031 sp->rx_discards.low += val;
11032 if (sp->rx_discards.low < val)
11033 sp->rx_discards.high += 1;
11034 }
11035 sp->mbuf_lwm_thresh_hit = sp->rx_discards;
11036 }
11037 TG3_STAT_ADD32(&sp->rx_errors, RCVLPC_IN_ERRORS_CNT);
11038}
11039
11040static void tg3_chk_missed_msi(struct tg3 *tp)
11041{
11042 u32 i;
11043
11044 for (i = 0; i < tp->irq_cnt; i++) {
11045 struct tg3_napi *tnapi = &tp->napi[i];
11046
11047 if (tg3_has_work(tnapi)) {
11048 if (tnapi->last_rx_cons == tnapi->rx_rcb_ptr &&
11049 tnapi->last_tx_cons == tnapi->tx_cons) {
11050 if (tnapi->chk_msi_cnt < 1) {
11051 tnapi->chk_msi_cnt++;
11052 return;
11053 }
11054 tg3_msi(irq: 0, dev_id: tnapi);
11055 }
11056 }
11057 tnapi->chk_msi_cnt = 0;
11058 tnapi->last_rx_cons = tnapi->rx_rcb_ptr;
11059 tnapi->last_tx_cons = tnapi->tx_cons;
11060 }
11061}
11062
11063static void tg3_timer(struct timer_list *t)
11064{
11065 struct tg3 *tp = timer_container_of(tp, t, timer);
11066
11067 spin_lock(lock: &tp->lock);
11068
11069 if (tp->irq_sync || tg3_flag(tp, RESET_TASK_PENDING)) {
11070 spin_unlock(lock: &tp->lock);
11071 goto restart_timer;
11072 }
11073
11074 if (tg3_asic_rev(tp) == ASIC_REV_5717 ||
11075 tg3_flag(tp, 57765_CLASS))
11076 tg3_chk_missed_msi(tp);
11077
11078 if (tg3_flag(tp, FLUSH_POSTED_WRITES)) {
11079 /* BCM4785: Flush posted writes from GbE to host memory. */
11080 tr32(HOSTCC_MODE);
11081 }
11082
11083 if (!tg3_flag(tp, TAGGED_STATUS)) {
11084 /* All of this garbage is because when using non-tagged
11085 * IRQ status the mailbox/status_block protocol the chip
11086 * uses with the cpu is race prone.
11087 */
11088 if (tp->napi[0].hw_status->status & SD_STATUS_UPDATED) {
11089 tw32(GRC_LOCAL_CTRL,
11090 tp->grc_local_ctrl | GRC_LCLCTRL_SETINT);
11091 } else {
11092 tw32(HOSTCC_MODE, tp->coalesce_mode |
11093 HOSTCC_MODE_ENABLE | HOSTCC_MODE_NOW);
11094 }
11095
11096 if (!(tr32(WDMAC_MODE) & WDMAC_MODE_ENABLE)) {
11097 spin_unlock(lock: &tp->lock);
11098 tg3_reset_task_schedule(tp);
11099 goto restart_timer;
11100 }
11101 }
11102
11103 /* This part only runs once per second. */
11104 if (!--tp->timer_counter) {
11105 if (tg3_flag(tp, 5705_PLUS))
11106 tg3_periodic_fetch_stats(tp);
11107
11108 if (tp->setlpicnt && !--tp->setlpicnt)
11109 tg3_phy_eee_enable(tp);
11110
11111 if (tg3_flag(tp, USE_LINKCHG_REG)) {
11112 u32 mac_stat;
11113 int phy_event;
11114
11115 mac_stat = tr32(MAC_STATUS);
11116
11117 phy_event = 0;
11118 if (tp->phy_flags & TG3_PHYFLG_USE_MI_INTERRUPT) {
11119 if (mac_stat & MAC_STATUS_MI_INTERRUPT)
11120 phy_event = 1;
11121 } else if (mac_stat & MAC_STATUS_LNKSTATE_CHANGED)
11122 phy_event = 1;
11123
11124 if (phy_event)
11125 tg3_setup_phy(tp, force_reset: false);
11126 } else if (tg3_flag(tp, POLL_SERDES)) {
11127 u32 mac_stat = tr32(MAC_STATUS);
11128 int need_setup = 0;
11129
11130 if (tp->link_up &&
11131 (mac_stat & MAC_STATUS_LNKSTATE_CHANGED)) {
11132 need_setup = 1;
11133 }
11134 if (!tp->link_up &&
11135 (mac_stat & (MAC_STATUS_PCS_SYNCED |
11136 MAC_STATUS_SIGNAL_DET))) {
11137 need_setup = 1;
11138 }
11139 if (need_setup) {
11140 if (!tp->serdes_counter) {
11141 tw32_f(MAC_MODE,
11142 (tp->mac_mode &
11143 ~MAC_MODE_PORT_MODE_MASK));
11144 udelay(usec: 40);
11145 tw32_f(MAC_MODE, tp->mac_mode);
11146 udelay(usec: 40);
11147 }
11148 tg3_setup_phy(tp, force_reset: false);
11149 }
11150 } else if ((tp->phy_flags & TG3_PHYFLG_MII_SERDES) &&
11151 tg3_flag(tp, 5780_CLASS)) {
11152 tg3_serdes_parallel_detect(tp);
11153 } else if (tg3_flag(tp, POLL_CPMU_LINK)) {
11154 u32 cpmu = tr32(TG3_CPMU_STATUS);
11155 bool link_up = !((cpmu & TG3_CPMU_STATUS_LINK_MASK) ==
11156 TG3_CPMU_STATUS_LINK_MASK);
11157
11158 if (link_up != tp->link_up)
11159 tg3_setup_phy(tp, force_reset: false);
11160 }
11161
11162 tp->timer_counter = tp->timer_multiplier;
11163 }
11164
11165 /* Heartbeat is only sent once every 2 seconds.
11166 *
11167 * The heartbeat is to tell the ASF firmware that the host
11168 * driver is still alive. In the event that the OS crashes,
11169 * ASF needs to reset the hardware to free up the FIFO space
11170 * that may be filled with rx packets destined for the host.
11171 * If the FIFO is full, ASF will no longer function properly.
11172 *
11173 * Unintended resets have been reported on real time kernels
11174 * where the timer doesn't run on time. Netpoll will also have
11175 * same problem.
11176 *
11177 * The new FWCMD_NICDRV_ALIVE3 command tells the ASF firmware
11178 * to check the ring condition when the heartbeat is expiring
11179 * before doing the reset. This will prevent most unintended
11180 * resets.
11181 */
11182 if (!--tp->asf_counter) {
11183 if (tg3_flag(tp, ENABLE_ASF) && !tg3_flag(tp, ENABLE_APE)) {
11184 tg3_wait_for_event_ack(tp);
11185
11186 tg3_write_mem(tp, NIC_SRAM_FW_CMD_MBOX,
11187 FWCMD_NICDRV_ALIVE3);
11188 tg3_write_mem(tp, NIC_SRAM_FW_CMD_LEN_MBOX, val: 4);
11189 tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX,
11190 TG3_FW_UPDATE_TIMEOUT_SEC);
11191
11192 tg3_generate_fw_event(tp);
11193 }
11194 tp->asf_counter = tp->asf_multiplier;
11195 }
11196
11197 /* Update the APE heartbeat every 5 seconds.*/
11198 tg3_send_ape_heartbeat(tp, TG3_APE_HB_INTERVAL);
11199
11200 spin_unlock(lock: &tp->lock);
11201
11202restart_timer:
11203 tp->timer.expires = jiffies + tp->timer_offset;
11204 add_timer(timer: &tp->timer);
11205}
11206
11207static void tg3_timer_init(struct tg3 *tp)
11208{
11209 if (tg3_flag(tp, TAGGED_STATUS) &&
11210 tg3_asic_rev(tp) != ASIC_REV_5717 &&
11211 !tg3_flag(tp, 57765_CLASS))
11212 tp->timer_offset = HZ;
11213 else
11214 tp->timer_offset = HZ / 10;
11215
11216 BUG_ON(tp->timer_offset > HZ);
11217
11218 tp->timer_multiplier = (HZ / tp->timer_offset);
11219 tp->asf_multiplier = (HZ / tp->timer_offset) *
11220 TG3_FW_UPDATE_FREQ_SEC;
11221
11222 timer_setup(&tp->timer, tg3_timer, 0);
11223}
11224
11225static void tg3_timer_start(struct tg3 *tp)
11226{
11227 tp->asf_counter = tp->asf_multiplier;
11228 tp->timer_counter = tp->timer_multiplier;
11229
11230 tp->timer.expires = jiffies + tp->timer_offset;
11231 add_timer(timer: &tp->timer);
11232}
11233
11234static void tg3_timer_stop(struct tg3 *tp)
11235{
11236 timer_delete_sync(timer: &tp->timer);
11237}
11238
11239/* Restart hardware after configuration changes, self-test, etc.
11240 * Invoked with tp->lock held.
11241 */
11242static int tg3_restart_hw(struct tg3 *tp, bool reset_phy)
11243 __releases(tp->lock)
11244 __acquires(tp->lock)
11245 __releases(tp->dev->lock)
11246 __acquires(tp->dev->lock)
11247{
11248 int err;
11249
11250 err = tg3_init_hw(tp, reset_phy);
11251 if (err) {
11252 netdev_err(dev: tp->dev,
11253 format: "Failed to re-initialize device, aborting\n");
11254 tg3_halt(tp, RESET_KIND_SHUTDOWN, silent: 1);
11255 tg3_full_unlock(tp);
11256 tg3_timer_stop(tp);
11257 tp->irq_sync = 0;
11258 tg3_napi_enable(tp);
11259 netdev_unlock(dev: tp->dev);
11260 dev_close(dev: tp->dev);
11261 netdev_lock(dev: tp->dev);
11262 tg3_full_lock(tp, irq_sync: 0);
11263 }
11264 return err;
11265}
11266
11267static void tg3_reset_task(struct work_struct *work)
11268{
11269 struct tg3 *tp = container_of(work, struct tg3, reset_task);
11270 int err;
11271
11272 rtnl_lock();
11273 tg3_full_lock(tp, irq_sync: 0);
11274
11275 if (tp->pcierr_recovery || !netif_running(dev: tp->dev) ||
11276 tp->pdev->error_state != pci_channel_io_normal) {
11277 tg3_flag_clear(tp, RESET_TASK_PENDING);
11278 tg3_full_unlock(tp);
11279 rtnl_unlock();
11280 return;
11281 }
11282
11283 tg3_full_unlock(tp);
11284
11285 tg3_phy_stop(tp);
11286
11287 tg3_netif_stop(tp);
11288
11289 netdev_lock(dev: tp->dev);
11290 tg3_full_lock(tp, irq_sync: 1);
11291
11292 if (tg3_flag(tp, TX_RECOVERY_PENDING)) {
11293 tp->write32_tx_mbox = tg3_write32_tx_mbox;
11294 tp->write32_rx_mbox = tg3_write_flush_reg32;
11295 tg3_flag_set(tp, MBOX_WRITE_REORDER);
11296 tg3_flag_clear(tp, TX_RECOVERY_PENDING);
11297 }
11298
11299 tg3_halt(tp, RESET_KIND_SHUTDOWN, silent: 0);
11300 err = tg3_init_hw(tp, reset_phy: true);
11301 if (err) {
11302 tg3_full_unlock(tp);
11303 tp->irq_sync = 0;
11304 tg3_napi_enable(tp);
11305 /* Clear this flag so that tg3_reset_task_cancel() will not
11306 * call cancel_work_sync() and wait forever.
11307 */
11308 tg3_flag_clear(tp, RESET_TASK_PENDING);
11309 netdev_unlock(dev: tp->dev);
11310 dev_close(dev: tp->dev);
11311 goto out;
11312 }
11313
11314 tg3_netif_start(tp);
11315 tg3_full_unlock(tp);
11316 netdev_unlock(dev: tp->dev);
11317 tg3_phy_start(tp);
11318 tg3_flag_clear(tp, RESET_TASK_PENDING);
11319out:
11320 rtnl_unlock();
11321}
11322
11323static int tg3_request_irq(struct tg3 *tp, int irq_num)
11324{
11325 irq_handler_t fn;
11326 unsigned long flags;
11327 char *name;
11328 struct tg3_napi *tnapi = &tp->napi[irq_num];
11329
11330 if (tp->irq_cnt == 1)
11331 name = tp->dev->name;
11332 else {
11333 name = &tnapi->irq_lbl[0];
11334 if (tnapi->tx_buffers && tnapi->rx_rcb)
11335 snprintf(buf: name, size: sizeof(tnapi->irq_lbl),
11336 fmt: "%s-txrx-%d", tp->dev->name, irq_num);
11337 else if (tnapi->tx_buffers)
11338 snprintf(buf: name, size: sizeof(tnapi->irq_lbl),
11339 fmt: "%s-tx-%d", tp->dev->name, irq_num);
11340 else if (tnapi->rx_rcb)
11341 snprintf(buf: name, size: sizeof(tnapi->irq_lbl),
11342 fmt: "%s-rx-%d", tp->dev->name, irq_num);
11343 else
11344 snprintf(buf: name, size: sizeof(tnapi->irq_lbl),
11345 fmt: "%s-%d", tp->dev->name, irq_num);
11346 }
11347
11348 if (tg3_flag(tp, USING_MSI) || tg3_flag(tp, USING_MSIX)) {
11349 fn = tg3_msi;
11350 if (tg3_flag(tp, 1SHOT_MSI))
11351 fn = tg3_msi_1shot;
11352 flags = 0;
11353 } else {
11354 fn = tg3_interrupt;
11355 if (tg3_flag(tp, TAGGED_STATUS))
11356 fn = tg3_interrupt_tagged;
11357 flags = IRQF_SHARED;
11358 }
11359
11360 return request_irq(irq: tnapi->irq_vec, handler: fn, flags, name, dev: tnapi);
11361}
11362
11363static int tg3_test_interrupt(struct tg3 *tp)
11364{
11365 struct tg3_napi *tnapi = &tp->napi[0];
11366 struct net_device *dev = tp->dev;
11367 int err, i, intr_ok = 0;
11368 u32 val;
11369
11370 if (!netif_running(dev))
11371 return -ENODEV;
11372
11373 tg3_disable_ints(tp);
11374
11375 free_irq(tnapi->irq_vec, tnapi);
11376
11377 /*
11378 * Turn off MSI one shot mode. Otherwise this test has no
11379 * observable way to know whether the interrupt was delivered.
11380 */
11381 if (tg3_flag(tp, 57765_PLUS)) {
11382 val = tr32(MSGINT_MODE) | MSGINT_MODE_ONE_SHOT_DISABLE;
11383 tw32(MSGINT_MODE, val);
11384 }
11385
11386 err = request_irq(irq: tnapi->irq_vec, handler: tg3_test_isr,
11387 IRQF_SHARED, name: dev->name, dev: tnapi);
11388 if (err)
11389 return err;
11390
11391 tnapi->hw_status->status &= ~SD_STATUS_UPDATED;
11392 tg3_enable_ints(tp);
11393
11394 tw32_f(HOSTCC_MODE, tp->coalesce_mode | HOSTCC_MODE_ENABLE |
11395 tnapi->coal_now);
11396
11397 for (i = 0; i < 5; i++) {
11398 u32 int_mbox, misc_host_ctrl;
11399
11400 int_mbox = tr32_mailbox(tnapi->int_mbox);
11401 misc_host_ctrl = tr32(TG3PCI_MISC_HOST_CTRL);
11402
11403 if ((int_mbox != 0) ||
11404 (misc_host_ctrl & MISC_HOST_CTRL_MASK_PCI_INT)) {
11405 intr_ok = 1;
11406 break;
11407 }
11408
11409 if (tg3_flag(tp, 57765_PLUS) &&
11410 tnapi->hw_status->status_tag != tnapi->last_tag)
11411 tw32_mailbox_f(tnapi->int_mbox, tnapi->last_tag << 24);
11412
11413 msleep(msecs: 10);
11414 }
11415
11416 tg3_disable_ints(tp);
11417
11418 free_irq(tnapi->irq_vec, tnapi);
11419
11420 err = tg3_request_irq(tp, irq_num: 0);
11421
11422 if (err)
11423 return err;
11424
11425 if (intr_ok) {
11426 /* Reenable MSI one shot mode. */
11427 if (tg3_flag(tp, 57765_PLUS) && tg3_flag(tp, 1SHOT_MSI)) {
11428 val = tr32(MSGINT_MODE) & ~MSGINT_MODE_ONE_SHOT_DISABLE;
11429 tw32(MSGINT_MODE, val);
11430 }
11431 return 0;
11432 }
11433
11434 return -EIO;
11435}
11436
11437/* Returns 0 if MSI test succeeds or MSI test fails and INTx mode is
11438 * successfully restored
11439 */
11440static int tg3_test_msi(struct tg3 *tp)
11441{
11442 int err;
11443 u16 pci_cmd;
11444
11445 if (!tg3_flag(tp, USING_MSI))
11446 return 0;
11447
11448 /* Turn off SERR reporting in case MSI terminates with Master
11449 * Abort.
11450 */
11451 pci_read_config_word(dev: tp->pdev, PCI_COMMAND, val: &pci_cmd);
11452 pci_write_config_word(dev: tp->pdev, PCI_COMMAND,
11453 val: pci_cmd & ~PCI_COMMAND_SERR);
11454
11455 err = tg3_test_interrupt(tp);
11456
11457 pci_write_config_word(dev: tp->pdev, PCI_COMMAND, val: pci_cmd);
11458
11459 if (!err)
11460 return 0;
11461
11462 /* other failures */
11463 if (err != -EIO)
11464 return err;
11465
11466 /* MSI test failed, go back to INTx mode */
11467 netdev_warn(dev: tp->dev, format: "No interrupt was generated using MSI. Switching "
11468 "to INTx mode. Please report this failure to the PCI "
11469 "maintainer and include system chipset information\n");
11470
11471 free_irq(tp->napi[0].irq_vec, &tp->napi[0]);
11472
11473 pci_disable_msi(dev: tp->pdev);
11474
11475 tg3_flag_clear(tp, USING_MSI);
11476 tp->napi[0].irq_vec = tp->pdev->irq;
11477
11478 err = tg3_request_irq(tp, irq_num: 0);
11479 if (err)
11480 return err;
11481
11482 /* Need to reset the chip because the MSI cycle may have terminated
11483 * with Master Abort.
11484 */
11485 tg3_full_lock(tp, irq_sync: 1);
11486
11487 tg3_halt(tp, RESET_KIND_SHUTDOWN, silent: 1);
11488 err = tg3_init_hw(tp, reset_phy: true);
11489
11490 tg3_full_unlock(tp);
11491
11492 if (err)
11493 free_irq(tp->napi[0].irq_vec, &tp->napi[0]);
11494
11495 return err;
11496}
11497
11498static int tg3_request_firmware(struct tg3 *tp)
11499{
11500 const struct tg3_firmware_hdr *fw_hdr;
11501
11502 if (request_firmware(fw: &tp->fw, name: tp->fw_needed, device: &tp->pdev->dev)) {
11503 netdev_err(dev: tp->dev, format: "Failed to load firmware \"%s\"\n",
11504 tp->fw_needed);
11505 return -ENOENT;
11506 }
11507
11508 fw_hdr = (struct tg3_firmware_hdr *)tp->fw->data;
11509
11510 /* Firmware blob starts with version numbers, followed by
11511 * start address and _full_ length including BSS sections
11512 * (which must be longer than the actual data, of course
11513 */
11514
11515 tp->fw_len = be32_to_cpu(fw_hdr->len); /* includes bss */
11516 if (tp->fw_len < (tp->fw->size - TG3_FW_HDR_LEN)) {
11517 netdev_err(dev: tp->dev, format: "bogus length %d in \"%s\"\n",
11518 tp->fw_len, tp->fw_needed);
11519 release_firmware(fw: tp->fw);
11520 tp->fw = NULL;
11521 return -EINVAL;
11522 }
11523
11524 /* We no longer need firmware; we have it. */
11525 tp->fw_needed = NULL;
11526 return 0;
11527}
11528
11529static u32 tg3_irq_count(struct tg3 *tp)
11530{
11531 u32 irq_cnt = max(tp->rxq_cnt, tp->txq_cnt);
11532
11533 if (irq_cnt > 1) {
11534 /* We want as many rx rings enabled as there are cpus.
11535 * In multiqueue MSI-X mode, the first MSI-X vector
11536 * only deals with link interrupts, etc, so we add
11537 * one to the number of vectors we are requesting.
11538 */
11539 irq_cnt = min_t(unsigned, irq_cnt + 1, tp->irq_max);
11540 }
11541
11542 return irq_cnt;
11543}
11544
11545static bool tg3_enable_msix(struct tg3 *tp)
11546{
11547 int i, rc;
11548 struct msix_entry msix_ent[TG3_IRQ_MAX_VECS];
11549
11550 tp->txq_cnt = tp->txq_req;
11551 tp->rxq_cnt = tp->rxq_req;
11552 if (!tp->rxq_cnt)
11553 tp->rxq_cnt = netif_get_num_default_rss_queues();
11554 if (tp->rxq_cnt > tp->rxq_max)
11555 tp->rxq_cnt = tp->rxq_max;
11556
11557 /* Disable multiple TX rings by default. Simple round-robin hardware
11558 * scheduling of the TX rings can cause starvation of rings with
11559 * small packets when other rings have TSO or jumbo packets.
11560 */
11561 if (!tp->txq_req)
11562 tp->txq_cnt = 1;
11563
11564 tp->irq_cnt = tg3_irq_count(tp);
11565
11566 for (i = 0; i < tp->irq_max; i++) {
11567 msix_ent[i].entry = i;
11568 msix_ent[i].vector = 0;
11569 }
11570
11571 rc = pci_enable_msix_range(dev: tp->pdev, entries: msix_ent, minvec: 1, maxvec: tp->irq_cnt);
11572 if (rc < 0) {
11573 return false;
11574 } else if (rc < tp->irq_cnt) {
11575 netdev_notice(dev: tp->dev, format: "Requested %d MSI-X vectors, received %d\n",
11576 tp->irq_cnt, rc);
11577 tp->irq_cnt = rc;
11578 tp->rxq_cnt = max(rc - 1, 1);
11579 if (tp->txq_cnt)
11580 tp->txq_cnt = min(tp->rxq_cnt, tp->txq_max);
11581 }
11582
11583 for (i = 0; i < tp->irq_max; i++)
11584 tp->napi[i].irq_vec = msix_ent[i].vector;
11585
11586 if (netif_set_real_num_rx_queues(dev: tp->dev, rxq: tp->rxq_cnt)) {
11587 pci_disable_msix(dev: tp->pdev);
11588 return false;
11589 }
11590
11591 if (tp->irq_cnt == 1)
11592 return true;
11593
11594 tg3_flag_set(tp, ENABLE_RSS);
11595
11596 if (tp->txq_cnt > 1)
11597 tg3_flag_set(tp, ENABLE_TSS);
11598
11599 netif_set_real_num_tx_queues(dev: tp->dev, txq: tp->txq_cnt);
11600
11601 return true;
11602}
11603
11604static void tg3_ints_init(struct tg3 *tp)
11605{
11606 if ((tg3_flag(tp, SUPPORT_MSI) || tg3_flag(tp, SUPPORT_MSIX)) &&
11607 !tg3_flag(tp, TAGGED_STATUS)) {
11608 /* All MSI supporting chips should support tagged
11609 * status. Assert that this is the case.
11610 */
11611 netdev_warn(dev: tp->dev,
11612 format: "MSI without TAGGED_STATUS? Not using MSI\n");
11613 goto defcfg;
11614 }
11615
11616 if (tg3_flag(tp, SUPPORT_MSIX) && tg3_enable_msix(tp))
11617 tg3_flag_set(tp, USING_MSIX);
11618 else if (tg3_flag(tp, SUPPORT_MSI) && pci_enable_msi(dev: tp->pdev) == 0)
11619 tg3_flag_set(tp, USING_MSI);
11620
11621 if (tg3_flag(tp, USING_MSI) || tg3_flag(tp, USING_MSIX)) {
11622 u32 msi_mode = tr32(MSGINT_MODE);
11623 if (tg3_flag(tp, USING_MSIX) && tp->irq_cnt > 1)
11624 msi_mode |= MSGINT_MODE_MULTIVEC_EN;
11625 if (!tg3_flag(tp, 1SHOT_MSI))
11626 msi_mode |= MSGINT_MODE_ONE_SHOT_DISABLE;
11627 tw32(MSGINT_MODE, msi_mode | MSGINT_MODE_ENABLE);
11628 }
11629defcfg:
11630 if (!tg3_flag(tp, USING_MSIX)) {
11631 tp->irq_cnt = 1;
11632 tp->napi[0].irq_vec = tp->pdev->irq;
11633 }
11634
11635 if (tp->irq_cnt == 1) {
11636 tp->txq_cnt = 1;
11637 tp->rxq_cnt = 1;
11638 netif_set_real_num_tx_queues(dev: tp->dev, txq: 1);
11639 netif_set_real_num_rx_queues(dev: tp->dev, rxq: 1);
11640 }
11641}
11642
11643static void tg3_ints_fini(struct tg3 *tp)
11644{
11645 if (tg3_flag(tp, USING_MSIX))
11646 pci_disable_msix(dev: tp->pdev);
11647 else if (tg3_flag(tp, USING_MSI))
11648 pci_disable_msi(dev: tp->pdev);
11649 tg3_flag_clear(tp, USING_MSI);
11650 tg3_flag_clear(tp, USING_MSIX);
11651 tg3_flag_clear(tp, ENABLE_RSS);
11652 tg3_flag_clear(tp, ENABLE_TSS);
11653}
11654
11655static int tg3_start(struct tg3 *tp, bool reset_phy, bool test_irq,
11656 bool init)
11657{
11658 struct net_device *dev = tp->dev;
11659 int i, err;
11660
11661 /*
11662 * Setup interrupts first so we know how
11663 * many NAPI resources to allocate
11664 */
11665 tg3_ints_init(tp);
11666
11667 tg3_rss_check_indir_tbl(tp);
11668
11669 /* The placement of this call is tied
11670 * to the setup and use of Host TX descriptors.
11671 */
11672 err = tg3_alloc_consistent(tp);
11673 if (err)
11674 goto out_ints_fini;
11675
11676 netdev_lock(dev);
11677 tg3_napi_init(tp);
11678
11679 tg3_napi_enable(tp);
11680 netdev_unlock(dev);
11681
11682 for (i = 0; i < tp->irq_cnt; i++) {
11683 err = tg3_request_irq(tp, irq_num: i);
11684 if (err) {
11685 for (i--; i >= 0; i--) {
11686 struct tg3_napi *tnapi = &tp->napi[i];
11687
11688 free_irq(tnapi->irq_vec, tnapi);
11689 }
11690 goto out_napi_fini;
11691 }
11692 }
11693
11694 tg3_full_lock(tp, irq_sync: 0);
11695
11696 if (init)
11697 tg3_ape_driver_state_change(tp, RESET_KIND_INIT);
11698
11699 err = tg3_init_hw(tp, reset_phy);
11700 if (err) {
11701 tg3_halt(tp, RESET_KIND_SHUTDOWN, silent: 1);
11702 tg3_free_rings(tp);
11703 }
11704
11705 tg3_full_unlock(tp);
11706
11707 if (err)
11708 goto out_free_irq;
11709
11710 if (test_irq && tg3_flag(tp, USING_MSI)) {
11711 err = tg3_test_msi(tp);
11712
11713 if (err) {
11714 tg3_full_lock(tp, irq_sync: 0);
11715 tg3_halt(tp, RESET_KIND_SHUTDOWN, silent: 1);
11716 tg3_free_rings(tp);
11717 tg3_full_unlock(tp);
11718
11719 goto out_napi_fini;
11720 }
11721
11722 if (!tg3_flag(tp, 57765_PLUS) && tg3_flag(tp, USING_MSI)) {
11723 u32 val = tr32(PCIE_TRANSACTION_CFG);
11724
11725 tw32(PCIE_TRANSACTION_CFG,
11726 val | PCIE_TRANS_CFG_1SHOT_MSI);
11727 }
11728 }
11729
11730 tg3_phy_start(tp);
11731
11732 tg3_hwmon_open(tp);
11733
11734 tg3_full_lock(tp, irq_sync: 0);
11735
11736 tg3_timer_start(tp);
11737 tg3_flag_set(tp, INIT_COMPLETE);
11738 tg3_enable_ints(tp);
11739
11740 tg3_ptp_resume(tp);
11741
11742 tg3_full_unlock(tp);
11743
11744 netif_tx_start_all_queues(dev);
11745
11746 /*
11747 * Reset loopback feature if it was turned on while the device was down
11748 * make sure that it's installed properly now.
11749 */
11750 if (dev->features & NETIF_F_LOOPBACK)
11751 tg3_set_loopback(dev, features: dev->features);
11752
11753 return 0;
11754
11755out_free_irq:
11756 for (i = tp->irq_cnt - 1; i >= 0; i--) {
11757 struct tg3_napi *tnapi = &tp->napi[i];
11758 free_irq(tnapi->irq_vec, tnapi);
11759 }
11760
11761out_napi_fini:
11762 tg3_napi_disable(tp);
11763 tg3_napi_fini(tp);
11764 tg3_free_consistent(tp);
11765
11766out_ints_fini:
11767 tg3_ints_fini(tp);
11768
11769 return err;
11770}
11771
11772static void tg3_stop(struct tg3 *tp)
11773{
11774 int i;
11775
11776 tg3_reset_task_cancel(tp);
11777 tg3_netif_stop(tp);
11778
11779 tg3_timer_stop(tp);
11780
11781 tg3_hwmon_close(tp);
11782
11783 tg3_phy_stop(tp);
11784
11785 tg3_full_lock(tp, irq_sync: 1);
11786
11787 tg3_disable_ints(tp);
11788
11789 tg3_halt(tp, RESET_KIND_SHUTDOWN, silent: 1);
11790 tg3_free_rings(tp);
11791 tg3_flag_clear(tp, INIT_COMPLETE);
11792
11793 tg3_full_unlock(tp);
11794
11795 for (i = tp->irq_cnt - 1; i >= 0; i--) {
11796 struct tg3_napi *tnapi = &tp->napi[i];
11797 free_irq(tnapi->irq_vec, tnapi);
11798 }
11799
11800 tg3_ints_fini(tp);
11801
11802 tg3_napi_fini(tp);
11803
11804 tg3_free_consistent(tp);
11805}
11806
11807static int tg3_open(struct net_device *dev)
11808{
11809 struct tg3 *tp = netdev_priv(dev);
11810 int err;
11811
11812 if (tp->pcierr_recovery) {
11813 netdev_err(dev, format: "Failed to open device. PCI error recovery "
11814 "in progress\n");
11815 return -EAGAIN;
11816 }
11817
11818 if (tp->fw_needed) {
11819 err = tg3_request_firmware(tp);
11820 if (tg3_asic_rev(tp) == ASIC_REV_57766) {
11821 if (err) {
11822 netdev_warn(dev: tp->dev, format: "EEE capability disabled\n");
11823 tp->phy_flags &= ~TG3_PHYFLG_EEE_CAP;
11824 } else if (!(tp->phy_flags & TG3_PHYFLG_EEE_CAP)) {
11825 netdev_warn(dev: tp->dev, format: "EEE capability restored\n");
11826 tp->phy_flags |= TG3_PHYFLG_EEE_CAP;
11827 }
11828 } else if (tg3_chip_rev_id(tp) == CHIPREV_ID_5701_A0) {
11829 if (err)
11830 return err;
11831 } else if (err) {
11832 netdev_warn(dev: tp->dev, format: "TSO capability disabled\n");
11833 tg3_flag_clear(tp, TSO_CAPABLE);
11834 } else if (!tg3_flag(tp, TSO_CAPABLE)) {
11835 netdev_notice(dev: tp->dev, format: "TSO capability restored\n");
11836 tg3_flag_set(tp, TSO_CAPABLE);
11837 }
11838 }
11839
11840 tg3_carrier_off(tp);
11841
11842 err = tg3_power_up(tp);
11843 if (err)
11844 return err;
11845
11846 tg3_full_lock(tp, irq_sync: 0);
11847
11848 tg3_disable_ints(tp);
11849 tg3_flag_clear(tp, INIT_COMPLETE);
11850
11851 tg3_full_unlock(tp);
11852
11853 err = tg3_start(tp,
11854 reset_phy: !(tp->phy_flags & TG3_PHYFLG_KEEP_LINK_ON_PWRDN),
11855 test_irq: true, init: true);
11856 if (err) {
11857 tg3_frob_aux_power(tp, include_wol: false);
11858 pci_set_power_state(dev: tp->pdev, PCI_D3hot);
11859 }
11860
11861 return err;
11862}
11863
11864static int tg3_close(struct net_device *dev)
11865{
11866 struct tg3 *tp = netdev_priv(dev);
11867
11868 if (tp->pcierr_recovery) {
11869 netdev_err(dev, format: "Failed to close device. PCI error recovery "
11870 "in progress\n");
11871 return -EAGAIN;
11872 }
11873
11874 tg3_stop(tp);
11875
11876 if (pci_device_is_present(pdev: tp->pdev)) {
11877 tg3_power_down_prepare(tp);
11878
11879 tg3_carrier_off(tp);
11880 }
11881 return 0;
11882}
11883
11884static inline u64 get_stat64(tg3_stat64_t *val)
11885{
11886 return ((u64)val->high << 32) | ((u64)val->low);
11887}
11888
11889static u64 tg3_calc_crc_errors(struct tg3 *tp)
11890{
11891 struct tg3_hw_stats *hw_stats = tp->hw_stats;
11892
11893 if (!(tp->phy_flags & TG3_PHYFLG_PHY_SERDES) &&
11894 (tg3_asic_rev(tp) == ASIC_REV_5700 ||
11895 tg3_asic_rev(tp) == ASIC_REV_5701)) {
11896 u32 val;
11897
11898 if (!tg3_readphy(tp, MII_TG3_TEST1, val: &val)) {
11899 tg3_writephy(tp, MII_TG3_TEST1,
11900 val: val | MII_TG3_TEST1_CRC_EN);
11901 tg3_readphy(tp, MII_TG3_RXR_COUNTERS, val: &val);
11902 } else
11903 val = 0;
11904
11905 tp->phy_crc_errors += val;
11906
11907 return tp->phy_crc_errors;
11908 }
11909
11910 return get_stat64(val: &hw_stats->rx_fcs_errors);
11911}
11912
11913#define ESTAT_ADD(member) \
11914 estats->member = old_estats->member + \
11915 get_stat64(&hw_stats->member)
11916
11917static void tg3_get_estats(struct tg3 *tp, struct tg3_ethtool_stats *estats)
11918{
11919 struct tg3_ethtool_stats *old_estats = &tp->estats_prev;
11920 struct tg3_hw_stats *hw_stats = tp->hw_stats;
11921
11922 ESTAT_ADD(rx_octets);
11923 ESTAT_ADD(rx_fragments);
11924 ESTAT_ADD(rx_ucast_packets);
11925 ESTAT_ADD(rx_mcast_packets);
11926 ESTAT_ADD(rx_bcast_packets);
11927 ESTAT_ADD(rx_fcs_errors);
11928 ESTAT_ADD(rx_align_errors);
11929 ESTAT_ADD(rx_xon_pause_rcvd);
11930 ESTAT_ADD(rx_xoff_pause_rcvd);
11931 ESTAT_ADD(rx_mac_ctrl_rcvd);
11932 ESTAT_ADD(rx_xoff_entered);
11933 ESTAT_ADD(rx_frame_too_long_errors);
11934 ESTAT_ADD(rx_jabbers);
11935 ESTAT_ADD(rx_undersize_packets);
11936 ESTAT_ADD(rx_in_length_errors);
11937 ESTAT_ADD(rx_out_length_errors);
11938 ESTAT_ADD(rx_64_or_less_octet_packets);
11939 ESTAT_ADD(rx_65_to_127_octet_packets);
11940 ESTAT_ADD(rx_128_to_255_octet_packets);
11941 ESTAT_ADD(rx_256_to_511_octet_packets);
11942 ESTAT_ADD(rx_512_to_1023_octet_packets);
11943 ESTAT_ADD(rx_1024_to_1522_octet_packets);
11944 ESTAT_ADD(rx_1523_to_2047_octet_packets);
11945 ESTAT_ADD(rx_2048_to_4095_octet_packets);
11946 ESTAT_ADD(rx_4096_to_8191_octet_packets);
11947 ESTAT_ADD(rx_8192_to_9022_octet_packets);
11948
11949 ESTAT_ADD(tx_octets);
11950 ESTAT_ADD(tx_collisions);
11951 ESTAT_ADD(tx_xon_sent);
11952 ESTAT_ADD(tx_xoff_sent);
11953 ESTAT_ADD(tx_flow_control);
11954 ESTAT_ADD(tx_mac_errors);
11955 ESTAT_ADD(tx_single_collisions);
11956 ESTAT_ADD(tx_mult_collisions);
11957 ESTAT_ADD(tx_deferred);
11958 ESTAT_ADD(tx_excessive_collisions);
11959 ESTAT_ADD(tx_late_collisions);
11960 ESTAT_ADD(tx_collide_2times);
11961 ESTAT_ADD(tx_collide_3times);
11962 ESTAT_ADD(tx_collide_4times);
11963 ESTAT_ADD(tx_collide_5times);
11964 ESTAT_ADD(tx_collide_6times);
11965 ESTAT_ADD(tx_collide_7times);
11966 ESTAT_ADD(tx_collide_8times);
11967 ESTAT_ADD(tx_collide_9times);
11968 ESTAT_ADD(tx_collide_10times);
11969 ESTAT_ADD(tx_collide_11times);
11970 ESTAT_ADD(tx_collide_12times);
11971 ESTAT_ADD(tx_collide_13times);
11972 ESTAT_ADD(tx_collide_14times);
11973 ESTAT_ADD(tx_collide_15times);
11974 ESTAT_ADD(tx_ucast_packets);
11975 ESTAT_ADD(tx_mcast_packets);
11976 ESTAT_ADD(tx_bcast_packets);
11977 ESTAT_ADD(tx_carrier_sense_errors);
11978 ESTAT_ADD(tx_discards);
11979 ESTAT_ADD(tx_errors);
11980
11981 ESTAT_ADD(dma_writeq_full);
11982 ESTAT_ADD(dma_write_prioq_full);
11983 ESTAT_ADD(rxbds_empty);
11984 ESTAT_ADD(rx_discards);
11985 ESTAT_ADD(rx_errors);
11986 ESTAT_ADD(rx_threshold_hit);
11987
11988 ESTAT_ADD(dma_readq_full);
11989 ESTAT_ADD(dma_read_prioq_full);
11990 ESTAT_ADD(tx_comp_queue_full);
11991
11992 ESTAT_ADD(ring_set_send_prod_index);
11993 ESTAT_ADD(ring_status_update);
11994 ESTAT_ADD(nic_irqs);
11995 ESTAT_ADD(nic_avoided_irqs);
11996 ESTAT_ADD(nic_tx_threshold_hit);
11997
11998 ESTAT_ADD(mbuf_lwm_thresh_hit);
11999}
12000
12001static void tg3_get_nstats(struct tg3 *tp, struct rtnl_link_stats64 *stats)
12002{
12003 struct rtnl_link_stats64 *old_stats = &tp->net_stats_prev;
12004 struct tg3_hw_stats *hw_stats = tp->hw_stats;
12005 unsigned long rx_dropped;
12006 unsigned long tx_dropped;
12007 int i;
12008
12009 stats->rx_packets = old_stats->rx_packets +
12010 get_stat64(val: &hw_stats->rx_ucast_packets) +
12011 get_stat64(val: &hw_stats->rx_mcast_packets) +
12012 get_stat64(val: &hw_stats->rx_bcast_packets);
12013
12014 stats->tx_packets = old_stats->tx_packets +
12015 get_stat64(val: &hw_stats->tx_ucast_packets) +
12016 get_stat64(val: &hw_stats->tx_mcast_packets) +
12017 get_stat64(val: &hw_stats->tx_bcast_packets);
12018
12019 stats->rx_bytes = old_stats->rx_bytes +
12020 get_stat64(val: &hw_stats->rx_octets);
12021 stats->tx_bytes = old_stats->tx_bytes +
12022 get_stat64(val: &hw_stats->tx_octets);
12023
12024 stats->rx_errors = old_stats->rx_errors +
12025 get_stat64(val: &hw_stats->rx_errors);
12026 stats->tx_errors = old_stats->tx_errors +
12027 get_stat64(val: &hw_stats->tx_errors) +
12028 get_stat64(val: &hw_stats->tx_mac_errors) +
12029 get_stat64(val: &hw_stats->tx_carrier_sense_errors) +
12030 get_stat64(val: &hw_stats->tx_discards);
12031
12032 stats->multicast = old_stats->multicast +
12033 get_stat64(val: &hw_stats->rx_mcast_packets);
12034 stats->collisions = old_stats->collisions +
12035 get_stat64(val: &hw_stats->tx_collisions);
12036
12037 stats->rx_length_errors = old_stats->rx_length_errors +
12038 get_stat64(val: &hw_stats->rx_frame_too_long_errors) +
12039 get_stat64(val: &hw_stats->rx_undersize_packets);
12040
12041 stats->rx_frame_errors = old_stats->rx_frame_errors +
12042 get_stat64(val: &hw_stats->rx_align_errors);
12043 stats->tx_aborted_errors = old_stats->tx_aborted_errors +
12044 get_stat64(val: &hw_stats->tx_discards);
12045 stats->tx_carrier_errors = old_stats->tx_carrier_errors +
12046 get_stat64(val: &hw_stats->tx_carrier_sense_errors);
12047
12048 stats->rx_crc_errors = old_stats->rx_crc_errors +
12049 tg3_calc_crc_errors(tp);
12050
12051 stats->rx_missed_errors = old_stats->rx_missed_errors +
12052 get_stat64(val: &hw_stats->rx_discards);
12053
12054 /* Aggregate per-queue counters. The per-queue counters are updated
12055 * by a single writer, race-free. The result computed by this loop
12056 * might not be 100% accurate (counters can be updated in the middle of
12057 * the loop) but the next tg3_get_nstats() will recompute the current
12058 * value so it is acceptable.
12059 *
12060 * Note that these counters wrap around at 4G on 32bit machines.
12061 */
12062 rx_dropped = (unsigned long)(old_stats->rx_dropped);
12063 tx_dropped = (unsigned long)(old_stats->tx_dropped);
12064
12065 for (i = 0; i < tp->irq_cnt; i++) {
12066 struct tg3_napi *tnapi = &tp->napi[i];
12067
12068 rx_dropped += tnapi->rx_dropped;
12069 tx_dropped += tnapi->tx_dropped;
12070 }
12071
12072 stats->rx_dropped = rx_dropped;
12073 stats->tx_dropped = tx_dropped;
12074}
12075
12076static int tg3_get_regs_len(struct net_device *dev)
12077{
12078 return TG3_REG_BLK_SIZE;
12079}
12080
12081static void tg3_get_regs(struct net_device *dev,
12082 struct ethtool_regs *regs, void *_p)
12083{
12084 struct tg3 *tp = netdev_priv(dev);
12085
12086 regs->version = 0;
12087
12088 memset(s: _p, c: 0, TG3_REG_BLK_SIZE);
12089
12090 if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)
12091 return;
12092
12093 tg3_full_lock(tp, irq_sync: 0);
12094
12095 tg3_dump_legacy_regs(tp, regs: (u32 *)_p);
12096
12097 tg3_full_unlock(tp);
12098}
12099
12100static int tg3_get_eeprom_len(struct net_device *dev)
12101{
12102 struct tg3 *tp = netdev_priv(dev);
12103
12104 return tp->nvram_size;
12105}
12106
12107static int tg3_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, u8 *data)
12108{
12109 struct tg3 *tp = netdev_priv(dev);
12110 int ret, cpmu_restore = 0;
12111 u8 *pd;
12112 u32 i, offset, len, b_offset, b_count, cpmu_val = 0;
12113 __be32 val;
12114
12115 if (tg3_flag(tp, NO_NVRAM))
12116 return -EINVAL;
12117
12118 offset = eeprom->offset;
12119 len = eeprom->len;
12120 eeprom->len = 0;
12121
12122 eeprom->magic = TG3_EEPROM_MAGIC;
12123
12124 /* Override clock, link aware and link idle modes */
12125 if (tg3_flag(tp, CPMU_PRESENT)) {
12126 cpmu_val = tr32(TG3_CPMU_CTRL);
12127 if (cpmu_val & (CPMU_CTRL_LINK_AWARE_MODE |
12128 CPMU_CTRL_LINK_IDLE_MODE)) {
12129 tw32(TG3_CPMU_CTRL, cpmu_val &
12130 ~(CPMU_CTRL_LINK_AWARE_MODE |
12131 CPMU_CTRL_LINK_IDLE_MODE));
12132 cpmu_restore = 1;
12133 }
12134 }
12135 tg3_override_clk(tp);
12136
12137 if (offset & 3) {
12138 /* adjustments to start on required 4 byte boundary */
12139 b_offset = offset & 3;
12140 b_count = 4 - b_offset;
12141 if (b_count > len) {
12142 /* i.e. offset=1 len=2 */
12143 b_count = len;
12144 }
12145 ret = tg3_nvram_read_be32(tp, offset: offset-b_offset, val: &val);
12146 if (ret)
12147 goto eeprom_done;
12148 memcpy(to: data, from: ((char *)&val) + b_offset, len: b_count);
12149 len -= b_count;
12150 offset += b_count;
12151 eeprom->len += b_count;
12152 }
12153
12154 /* read bytes up to the last 4 byte boundary */
12155 pd = &data[eeprom->len];
12156 for (i = 0; i < (len - (len & 3)); i += 4) {
12157 ret = tg3_nvram_read_be32(tp, offset: offset + i, val: &val);
12158 if (ret) {
12159 if (i)
12160 i -= 4;
12161 eeprom->len += i;
12162 goto eeprom_done;
12163 }
12164 memcpy(to: pd + i, from: &val, len: 4);
12165 if (need_resched()) {
12166 if (signal_pending(current)) {
12167 eeprom->len += i;
12168 ret = -EINTR;
12169 goto eeprom_done;
12170 }
12171 cond_resched();
12172 }
12173 }
12174 eeprom->len += i;
12175
12176 if (len & 3) {
12177 /* read last bytes not ending on 4 byte boundary */
12178 pd = &data[eeprom->len];
12179 b_count = len & 3;
12180 b_offset = offset + len - b_count;
12181 ret = tg3_nvram_read_be32(tp, offset: b_offset, val: &val);
12182 if (ret)
12183 goto eeprom_done;
12184 memcpy(to: pd, from: &val, len: b_count);
12185 eeprom->len += b_count;
12186 }
12187 ret = 0;
12188
12189eeprom_done:
12190 /* Restore clock, link aware and link idle modes */
12191 tg3_restore_clk(tp);
12192 if (cpmu_restore)
12193 tw32(TG3_CPMU_CTRL, cpmu_val);
12194
12195 return ret;
12196}
12197
12198static int tg3_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, u8 *data)
12199{
12200 struct tg3 *tp = netdev_priv(dev);
12201 int ret;
12202 u32 offset, len, b_offset, odd_len;
12203 u8 *buf;
12204 __be32 start = 0, end;
12205
12206 if (tg3_flag(tp, NO_NVRAM) ||
12207 eeprom->magic != TG3_EEPROM_MAGIC)
12208 return -EINVAL;
12209
12210 offset = eeprom->offset;
12211 len = eeprom->len;
12212
12213 if ((b_offset = (offset & 3))) {
12214 /* adjustments to start on required 4 byte boundary */
12215 ret = tg3_nvram_read_be32(tp, offset: offset-b_offset, val: &start);
12216 if (ret)
12217 return ret;
12218 len += b_offset;
12219 offset &= ~3;
12220 if (len < 4)
12221 len = 4;
12222 }
12223
12224 odd_len = 0;
12225 if (len & 3) {
12226 /* adjustments to end on required 4 byte boundary */
12227 odd_len = 1;
12228 len = (len + 3) & ~3;
12229 ret = tg3_nvram_read_be32(tp, offset: offset+len-4, val: &end);
12230 if (ret)
12231 return ret;
12232 }
12233
12234 buf = data;
12235 if (b_offset || odd_len) {
12236 buf = kmalloc(len, GFP_KERNEL);
12237 if (!buf)
12238 return -ENOMEM;
12239 if (b_offset)
12240 memcpy(to: buf, from: &start, len: 4);
12241 if (odd_len)
12242 memcpy(to: buf+len-4, from: &end, len: 4);
12243 memcpy(to: buf + b_offset, from: data, len: eeprom->len);
12244 }
12245
12246 ret = tg3_nvram_write_block(tp, offset, len, buf);
12247
12248 if (buf != data)
12249 kfree(objp: buf);
12250
12251 return ret;
12252}
12253
12254static int tg3_get_link_ksettings(struct net_device *dev,
12255 struct ethtool_link_ksettings *cmd)
12256{
12257 struct tg3 *tp = netdev_priv(dev);
12258 u32 supported, advertising;
12259
12260 if (tg3_flag(tp, USE_PHYLIB)) {
12261 struct phy_device *phydev;
12262 if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED))
12263 return -EAGAIN;
12264 phydev = mdiobus_get_phy(bus: tp->mdio_bus, addr: tp->phy_addr);
12265 phy_ethtool_ksettings_get(phydev, cmd);
12266
12267 return 0;
12268 }
12269
12270 supported = (SUPPORTED_Autoneg);
12271
12272 if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY))
12273 supported |= (SUPPORTED_1000baseT_Half |
12274 SUPPORTED_1000baseT_Full);
12275
12276 if (!(tp->phy_flags & TG3_PHYFLG_ANY_SERDES)) {
12277 supported |= (SUPPORTED_100baseT_Half |
12278 SUPPORTED_100baseT_Full |
12279 SUPPORTED_10baseT_Half |
12280 SUPPORTED_10baseT_Full |
12281 SUPPORTED_TP);
12282 cmd->base.port = PORT_TP;
12283 } else {
12284 supported |= SUPPORTED_FIBRE;
12285 cmd->base.port = PORT_FIBRE;
12286 }
12287 ethtool_convert_legacy_u32_to_link_mode(dst: cmd->link_modes.supported,
12288 legacy_u32: supported);
12289
12290 advertising = tp->link_config.advertising;
12291 if (tg3_flag(tp, PAUSE_AUTONEG)) {
12292 if (tp->link_config.flowctrl & FLOW_CTRL_RX) {
12293 if (tp->link_config.flowctrl & FLOW_CTRL_TX) {
12294 advertising |= ADVERTISED_Pause;
12295 } else {
12296 advertising |= ADVERTISED_Pause |
12297 ADVERTISED_Asym_Pause;
12298 }
12299 } else if (tp->link_config.flowctrl & FLOW_CTRL_TX) {
12300 advertising |= ADVERTISED_Asym_Pause;
12301 }
12302 }
12303 ethtool_convert_legacy_u32_to_link_mode(dst: cmd->link_modes.advertising,
12304 legacy_u32: advertising);
12305
12306 if (netif_running(dev) && tp->link_up) {
12307 cmd->base.speed = tp->link_config.active_speed;
12308 cmd->base.duplex = tp->link_config.active_duplex;
12309 ethtool_convert_legacy_u32_to_link_mode(
12310 dst: cmd->link_modes.lp_advertising,
12311 legacy_u32: tp->link_config.rmt_adv);
12312
12313 if (!(tp->phy_flags & TG3_PHYFLG_ANY_SERDES)) {
12314 if (tp->phy_flags & TG3_PHYFLG_MDIX_STATE)
12315 cmd->base.eth_tp_mdix = ETH_TP_MDI_X;
12316 else
12317 cmd->base.eth_tp_mdix = ETH_TP_MDI;
12318 }
12319 } else {
12320 cmd->base.speed = SPEED_UNKNOWN;
12321 cmd->base.duplex = DUPLEX_UNKNOWN;
12322 cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID;
12323 }
12324 cmd->base.phy_address = tp->phy_addr;
12325 cmd->base.autoneg = tp->link_config.autoneg;
12326 return 0;
12327}
12328
12329static int tg3_set_link_ksettings(struct net_device *dev,
12330 const struct ethtool_link_ksettings *cmd)
12331{
12332 struct tg3 *tp = netdev_priv(dev);
12333 u32 speed = cmd->base.speed;
12334 u32 advertising;
12335
12336 if (tg3_flag(tp, USE_PHYLIB)) {
12337 struct phy_device *phydev;
12338 if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED))
12339 return -EAGAIN;
12340 phydev = mdiobus_get_phy(bus: tp->mdio_bus, addr: tp->phy_addr);
12341 return phy_ethtool_ksettings_set(phydev, cmd);
12342 }
12343
12344 if (cmd->base.autoneg != AUTONEG_ENABLE &&
12345 cmd->base.autoneg != AUTONEG_DISABLE)
12346 return -EINVAL;
12347
12348 if (cmd->base.autoneg == AUTONEG_DISABLE &&
12349 cmd->base.duplex != DUPLEX_FULL &&
12350 cmd->base.duplex != DUPLEX_HALF)
12351 return -EINVAL;
12352
12353 ethtool_convert_link_mode_to_legacy_u32(legacy_u32: &advertising,
12354 src: cmd->link_modes.advertising);
12355
12356 if (cmd->base.autoneg == AUTONEG_ENABLE) {
12357 u32 mask = ADVERTISED_Autoneg |
12358 ADVERTISED_Pause |
12359 ADVERTISED_Asym_Pause;
12360
12361 if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY))
12362 mask |= ADVERTISED_1000baseT_Half |
12363 ADVERTISED_1000baseT_Full;
12364
12365 if (!(tp->phy_flags & TG3_PHYFLG_ANY_SERDES))
12366 mask |= ADVERTISED_100baseT_Half |
12367 ADVERTISED_100baseT_Full |
12368 ADVERTISED_10baseT_Half |
12369 ADVERTISED_10baseT_Full |
12370 ADVERTISED_TP;
12371 else
12372 mask |= ADVERTISED_FIBRE;
12373
12374 if (advertising & ~mask)
12375 return -EINVAL;
12376
12377 mask &= (ADVERTISED_1000baseT_Half |
12378 ADVERTISED_1000baseT_Full |
12379 ADVERTISED_100baseT_Half |
12380 ADVERTISED_100baseT_Full |
12381 ADVERTISED_10baseT_Half |
12382 ADVERTISED_10baseT_Full);
12383
12384 advertising &= mask;
12385 } else {
12386 if (tp->phy_flags & TG3_PHYFLG_ANY_SERDES) {
12387 if (speed != SPEED_1000)
12388 return -EINVAL;
12389
12390 if (cmd->base.duplex != DUPLEX_FULL)
12391 return -EINVAL;
12392 } else {
12393 if (speed != SPEED_100 &&
12394 speed != SPEED_10)
12395 return -EINVAL;
12396 }
12397 }
12398
12399 tg3_full_lock(tp, irq_sync: 0);
12400
12401 tp->link_config.autoneg = cmd->base.autoneg;
12402 if (cmd->base.autoneg == AUTONEG_ENABLE) {
12403 tp->link_config.advertising = (advertising |
12404 ADVERTISED_Autoneg);
12405 tp->link_config.speed = SPEED_UNKNOWN;
12406 tp->link_config.duplex = DUPLEX_UNKNOWN;
12407 } else {
12408 tp->link_config.advertising = 0;
12409 tp->link_config.speed = speed;
12410 tp->link_config.duplex = cmd->base.duplex;
12411 }
12412
12413 tp->phy_flags |= TG3_PHYFLG_USER_CONFIGURED;
12414
12415 tg3_warn_mgmt_link_flap(tp);
12416
12417 if (netif_running(dev))
12418 tg3_setup_phy(tp, force_reset: true);
12419
12420 tg3_full_unlock(tp);
12421
12422 return 0;
12423}
12424
12425static void tg3_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
12426{
12427 struct tg3 *tp = netdev_priv(dev);
12428
12429 strscpy(info->driver, DRV_MODULE_NAME, sizeof(info->driver));
12430 strscpy(info->fw_version, tp->fw_ver, sizeof(info->fw_version));
12431 strscpy(info->bus_info, pci_name(tp->pdev), sizeof(info->bus_info));
12432}
12433
12434static void tg3_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
12435{
12436 struct tg3 *tp = netdev_priv(dev);
12437
12438 if (tg3_flag(tp, WOL_CAP) && device_can_wakeup(dev: &tp->pdev->dev))
12439 wol->supported = WAKE_MAGIC;
12440 else
12441 wol->supported = 0;
12442 wol->wolopts = 0;
12443 if (tg3_flag(tp, WOL_ENABLE) && device_can_wakeup(dev: &tp->pdev->dev))
12444 wol->wolopts = WAKE_MAGIC;
12445 memset(s: &wol->sopass, c: 0, n: sizeof(wol->sopass));
12446}
12447
12448static int tg3_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
12449{
12450 struct tg3 *tp = netdev_priv(dev);
12451 struct device *dp = &tp->pdev->dev;
12452
12453 if (wol->wolopts & ~WAKE_MAGIC)
12454 return -EINVAL;
12455 if ((wol->wolopts & WAKE_MAGIC) &&
12456 !(tg3_flag(tp, WOL_CAP) && device_can_wakeup(dev: dp)))
12457 return -EINVAL;
12458
12459 device_set_wakeup_enable(dev: dp, enable: wol->wolopts & WAKE_MAGIC);
12460
12461 if (device_may_wakeup(dev: dp))
12462 tg3_flag_set(tp, WOL_ENABLE);
12463 else
12464 tg3_flag_clear(tp, WOL_ENABLE);
12465
12466 return 0;
12467}
12468
12469static u32 tg3_get_msglevel(struct net_device *dev)
12470{
12471 struct tg3 *tp = netdev_priv(dev);
12472 return tp->msg_enable;
12473}
12474
12475static void tg3_set_msglevel(struct net_device *dev, u32 value)
12476{
12477 struct tg3 *tp = netdev_priv(dev);
12478 tp->msg_enable = value;
12479}
12480
12481static int tg3_nway_reset(struct net_device *dev)
12482{
12483 struct tg3 *tp = netdev_priv(dev);
12484 int r;
12485
12486 if (!netif_running(dev))
12487 return -EAGAIN;
12488
12489 if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES)
12490 return -EINVAL;
12491
12492 tg3_warn_mgmt_link_flap(tp);
12493
12494 if (tg3_flag(tp, USE_PHYLIB)) {
12495 if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED))
12496 return -EAGAIN;
12497 r = phy_start_aneg(phydev: mdiobus_get_phy(bus: tp->mdio_bus, addr: tp->phy_addr));
12498 } else {
12499 u32 bmcr;
12500
12501 spin_lock_bh(lock: &tp->lock);
12502 r = -EINVAL;
12503 tg3_readphy(tp, MII_BMCR, val: &bmcr);
12504 if (!tg3_readphy(tp, MII_BMCR, val: &bmcr) &&
12505 ((bmcr & BMCR_ANENABLE) ||
12506 (tp->phy_flags & TG3_PHYFLG_PARALLEL_DETECT))) {
12507 tg3_writephy(tp, MII_BMCR, val: bmcr | BMCR_ANRESTART |
12508 BMCR_ANENABLE);
12509 r = 0;
12510 }
12511 spin_unlock_bh(lock: &tp->lock);
12512 }
12513
12514 return r;
12515}
12516
12517static void tg3_get_ringparam(struct net_device *dev,
12518 struct ethtool_ringparam *ering,
12519 struct kernel_ethtool_ringparam *kernel_ering,
12520 struct netlink_ext_ack *extack)
12521{
12522 struct tg3 *tp = netdev_priv(dev);
12523
12524 ering->rx_max_pending = tp->rx_std_ring_mask;
12525 if (tg3_flag(tp, JUMBO_RING_ENABLE))
12526 ering->rx_jumbo_max_pending = tp->rx_jmb_ring_mask;
12527 else
12528 ering->rx_jumbo_max_pending = 0;
12529
12530 ering->tx_max_pending = TG3_TX_RING_SIZE - 1;
12531
12532 ering->rx_pending = tp->rx_pending;
12533 if (tg3_flag(tp, JUMBO_RING_ENABLE))
12534 ering->rx_jumbo_pending = tp->rx_jumbo_pending;
12535 else
12536 ering->rx_jumbo_pending = 0;
12537
12538 ering->tx_pending = tp->napi[0].tx_pending;
12539}
12540
12541static int tg3_set_ringparam(struct net_device *dev,
12542 struct ethtool_ringparam *ering,
12543 struct kernel_ethtool_ringparam *kernel_ering,
12544 struct netlink_ext_ack *extack)
12545{
12546 struct tg3 *tp = netdev_priv(dev);
12547 int i, irq_sync = 0, err = 0;
12548 bool reset_phy = false;
12549
12550 if ((ering->rx_pending > tp->rx_std_ring_mask) ||
12551 (ering->rx_jumbo_pending > tp->rx_jmb_ring_mask) ||
12552 (ering->tx_pending > TG3_TX_RING_SIZE - 1) ||
12553 (ering->tx_pending <= MAX_SKB_FRAGS) ||
12554 (tg3_flag(tp, TSO_BUG) &&
12555 (ering->tx_pending <= (MAX_SKB_FRAGS * 3))))
12556 return -EINVAL;
12557
12558 if (netif_running(dev)) {
12559 tg3_phy_stop(tp);
12560 tg3_netif_stop(tp);
12561 irq_sync = 1;
12562 }
12563
12564 netdev_lock(dev);
12565 tg3_full_lock(tp, irq_sync);
12566
12567 tp->rx_pending = ering->rx_pending;
12568
12569 if (tg3_flag(tp, MAX_RXPEND_64) &&
12570 tp->rx_pending > 63)
12571 tp->rx_pending = 63;
12572
12573 if (tg3_flag(tp, JUMBO_RING_ENABLE))
12574 tp->rx_jumbo_pending = ering->rx_jumbo_pending;
12575
12576 for (i = 0; i < tp->irq_max; i++)
12577 tp->napi[i].tx_pending = ering->tx_pending;
12578
12579 if (netif_running(dev)) {
12580 tg3_halt(tp, RESET_KIND_SHUTDOWN, silent: 1);
12581 /* Reset PHY to avoid PHY lock up */
12582 if (tg3_asic_rev(tp) == ASIC_REV_5717 ||
12583 tg3_asic_rev(tp) == ASIC_REV_5719 ||
12584 tg3_asic_rev(tp) == ASIC_REV_5720)
12585 reset_phy = true;
12586
12587 err = tg3_restart_hw(tp, reset_phy);
12588 if (!err)
12589 tg3_netif_start(tp);
12590 }
12591
12592 tg3_full_unlock(tp);
12593 netdev_unlock(dev);
12594
12595 if (irq_sync && !err)
12596 tg3_phy_start(tp);
12597
12598 return err;
12599}
12600
12601static void tg3_get_pauseparam(struct net_device *dev, struct ethtool_pauseparam *epause)
12602{
12603 struct tg3 *tp = netdev_priv(dev);
12604
12605 epause->autoneg = !!tg3_flag(tp, PAUSE_AUTONEG);
12606
12607 if (tp->link_config.flowctrl & FLOW_CTRL_RX)
12608 epause->rx_pause = 1;
12609 else
12610 epause->rx_pause = 0;
12611
12612 if (tp->link_config.flowctrl & FLOW_CTRL_TX)
12613 epause->tx_pause = 1;
12614 else
12615 epause->tx_pause = 0;
12616}
12617
12618static int tg3_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam *epause)
12619{
12620 struct tg3 *tp = netdev_priv(dev);
12621 int err = 0;
12622 bool reset_phy = false;
12623
12624 if (tp->link_config.autoneg == AUTONEG_ENABLE)
12625 tg3_warn_mgmt_link_flap(tp);
12626
12627 if (tg3_flag(tp, USE_PHYLIB)) {
12628 struct phy_device *phydev;
12629
12630 phydev = mdiobus_get_phy(bus: tp->mdio_bus, addr: tp->phy_addr);
12631
12632 if (!phy_validate_pause(phydev, pp: epause))
12633 return -EINVAL;
12634
12635 tp->link_config.flowctrl = 0;
12636 phy_set_asym_pause(phydev, rx: epause->rx_pause, tx: epause->tx_pause);
12637 if (epause->rx_pause) {
12638 tp->link_config.flowctrl |= FLOW_CTRL_RX;
12639
12640 if (epause->tx_pause) {
12641 tp->link_config.flowctrl |= FLOW_CTRL_TX;
12642 }
12643 } else if (epause->tx_pause) {
12644 tp->link_config.flowctrl |= FLOW_CTRL_TX;
12645 }
12646
12647 if (epause->autoneg)
12648 tg3_flag_set(tp, PAUSE_AUTONEG);
12649 else
12650 tg3_flag_clear(tp, PAUSE_AUTONEG);
12651
12652 if (tp->phy_flags & TG3_PHYFLG_IS_CONNECTED) {
12653 if (phydev->autoneg) {
12654 /* phy_set_asym_pause() will
12655 * renegotiate the link to inform our
12656 * link partner of our flow control
12657 * settings, even if the flow control
12658 * is forced. Let tg3_adjust_link()
12659 * do the final flow control setup.
12660 */
12661 return 0;
12662 }
12663
12664 if (!epause->autoneg)
12665 tg3_setup_flow_control(tp, lcladv: 0, rmtadv: 0);
12666 }
12667 } else {
12668 int irq_sync = 0;
12669
12670 if (netif_running(dev)) {
12671 tg3_netif_stop(tp);
12672 irq_sync = 1;
12673 }
12674
12675 netdev_lock(dev);
12676 tg3_full_lock(tp, irq_sync);
12677
12678 if (epause->autoneg)
12679 tg3_flag_set(tp, PAUSE_AUTONEG);
12680 else
12681 tg3_flag_clear(tp, PAUSE_AUTONEG);
12682 if (epause->rx_pause)
12683 tp->link_config.flowctrl |= FLOW_CTRL_RX;
12684 else
12685 tp->link_config.flowctrl &= ~FLOW_CTRL_RX;
12686 if (epause->tx_pause)
12687 tp->link_config.flowctrl |= FLOW_CTRL_TX;
12688 else
12689 tp->link_config.flowctrl &= ~FLOW_CTRL_TX;
12690
12691 if (netif_running(dev)) {
12692 tg3_halt(tp, RESET_KIND_SHUTDOWN, silent: 1);
12693 /* Reset PHY to avoid PHY lock up */
12694 if (tg3_asic_rev(tp) == ASIC_REV_5717 ||
12695 tg3_asic_rev(tp) == ASIC_REV_5719 ||
12696 tg3_asic_rev(tp) == ASIC_REV_5720)
12697 reset_phy = true;
12698
12699 err = tg3_restart_hw(tp, reset_phy);
12700 if (!err)
12701 tg3_netif_start(tp);
12702 }
12703
12704 tg3_full_unlock(tp);
12705 netdev_unlock(dev);
12706 }
12707
12708 tp->phy_flags |= TG3_PHYFLG_USER_CONFIGURED;
12709
12710 return err;
12711}
12712
12713static int tg3_get_sset_count(struct net_device *dev, int sset)
12714{
12715 switch (sset) {
12716 case ETH_SS_TEST:
12717 return TG3_NUM_TEST;
12718 case ETH_SS_STATS:
12719 return TG3_NUM_STATS;
12720 default:
12721 return -EOPNOTSUPP;
12722 }
12723}
12724
12725static int tg3_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info,
12726 u32 *rules __always_unused)
12727{
12728 struct tg3 *tp = netdev_priv(dev);
12729
12730 if (!tg3_flag(tp, SUPPORT_MSIX))
12731 return -EOPNOTSUPP;
12732
12733 switch (info->cmd) {
12734 case ETHTOOL_GRXRINGS:
12735 if (netif_running(dev: tp->dev))
12736 info->data = tp->rxq_cnt;
12737 else {
12738 info->data = num_online_cpus();
12739 if (info->data > TG3_RSS_MAX_NUM_QS)
12740 info->data = TG3_RSS_MAX_NUM_QS;
12741 }
12742
12743 return 0;
12744
12745 default:
12746 return -EOPNOTSUPP;
12747 }
12748}
12749
12750static u32 tg3_get_rxfh_indir_size(struct net_device *dev)
12751{
12752 u32 size = 0;
12753 struct tg3 *tp = netdev_priv(dev);
12754
12755 if (tg3_flag(tp, SUPPORT_MSIX))
12756 size = TG3_RSS_INDIR_TBL_SIZE;
12757
12758 return size;
12759}
12760
12761static int tg3_get_rxfh(struct net_device *dev, struct ethtool_rxfh_param *rxfh)
12762{
12763 struct tg3 *tp = netdev_priv(dev);
12764 int i;
12765
12766 rxfh->hfunc = ETH_RSS_HASH_TOP;
12767 if (!rxfh->indir)
12768 return 0;
12769
12770 for (i = 0; i < TG3_RSS_INDIR_TBL_SIZE; i++)
12771 rxfh->indir[i] = tp->rss_ind_tbl[i];
12772
12773 return 0;
12774}
12775
12776static int tg3_set_rxfh(struct net_device *dev, struct ethtool_rxfh_param *rxfh,
12777 struct netlink_ext_ack *extack)
12778{
12779 struct tg3 *tp = netdev_priv(dev);
12780 size_t i;
12781
12782 /* We require at least one supported parameter to be changed and no
12783 * change in any of the unsupported parameters
12784 */
12785 if (rxfh->key ||
12786 (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE &&
12787 rxfh->hfunc != ETH_RSS_HASH_TOP))
12788 return -EOPNOTSUPP;
12789
12790 if (!rxfh->indir)
12791 return 0;
12792
12793 for (i = 0; i < TG3_RSS_INDIR_TBL_SIZE; i++)
12794 tp->rss_ind_tbl[i] = rxfh->indir[i];
12795
12796 if (!netif_running(dev) || !tg3_flag(tp, ENABLE_RSS))
12797 return 0;
12798
12799 /* It is legal to write the indirection
12800 * table while the device is running.
12801 */
12802 tg3_full_lock(tp, irq_sync: 0);
12803 tg3_rss_write_indir_tbl(tp);
12804 tg3_full_unlock(tp);
12805
12806 return 0;
12807}
12808
12809static void tg3_get_channels(struct net_device *dev,
12810 struct ethtool_channels *channel)
12811{
12812 struct tg3 *tp = netdev_priv(dev);
12813 u32 deflt_qs = netif_get_num_default_rss_queues();
12814
12815 channel->max_rx = tp->rxq_max;
12816 channel->max_tx = tp->txq_max;
12817
12818 if (netif_running(dev)) {
12819 channel->rx_count = tp->rxq_cnt;
12820 channel->tx_count = tp->txq_cnt;
12821 } else {
12822 if (tp->rxq_req)
12823 channel->rx_count = tp->rxq_req;
12824 else
12825 channel->rx_count = min(deflt_qs, tp->rxq_max);
12826
12827 if (tp->txq_req)
12828 channel->tx_count = tp->txq_req;
12829 else
12830 channel->tx_count = min(deflt_qs, tp->txq_max);
12831 }
12832}
12833
12834static int tg3_set_channels(struct net_device *dev,
12835 struct ethtool_channels *channel)
12836{
12837 struct tg3 *tp = netdev_priv(dev);
12838
12839 if (!tg3_flag(tp, SUPPORT_MSIX))
12840 return -EOPNOTSUPP;
12841
12842 if (channel->rx_count > tp->rxq_max ||
12843 channel->tx_count > tp->txq_max)
12844 return -EINVAL;
12845
12846 tp->rxq_req = channel->rx_count;
12847 tp->txq_req = channel->tx_count;
12848
12849 if (!netif_running(dev))
12850 return 0;
12851
12852 tg3_stop(tp);
12853
12854 tg3_carrier_off(tp);
12855
12856 tg3_start(tp, reset_phy: true, test_irq: false, init: false);
12857
12858 return 0;
12859}
12860
12861static void tg3_get_strings(struct net_device *dev, u32 stringset, u8 *buf)
12862{
12863 switch (stringset) {
12864 case ETH_SS_STATS:
12865 memcpy(to: buf, from: &ethtool_stats_keys, len: sizeof(ethtool_stats_keys));
12866 break;
12867 case ETH_SS_TEST:
12868 memcpy(to: buf, from: &ethtool_test_keys, len: sizeof(ethtool_test_keys));
12869 break;
12870 default:
12871 WARN_ON(1); /* we need a WARN() */
12872 break;
12873 }
12874}
12875
12876static int tg3_set_phys_id(struct net_device *dev,
12877 enum ethtool_phys_id_state state)
12878{
12879 struct tg3 *tp = netdev_priv(dev);
12880
12881 switch (state) {
12882 case ETHTOOL_ID_ACTIVE:
12883 return 1; /* cycle on/off once per second */
12884
12885 case ETHTOOL_ID_ON:
12886 tw32(MAC_LED_CTRL, LED_CTRL_LNKLED_OVERRIDE |
12887 LED_CTRL_1000MBPS_ON |
12888 LED_CTRL_100MBPS_ON |
12889 LED_CTRL_10MBPS_ON |
12890 LED_CTRL_TRAFFIC_OVERRIDE |
12891 LED_CTRL_TRAFFIC_BLINK |
12892 LED_CTRL_TRAFFIC_LED);
12893 break;
12894
12895 case ETHTOOL_ID_OFF:
12896 tw32(MAC_LED_CTRL, LED_CTRL_LNKLED_OVERRIDE |
12897 LED_CTRL_TRAFFIC_OVERRIDE);
12898 break;
12899
12900 case ETHTOOL_ID_INACTIVE:
12901 tw32(MAC_LED_CTRL, tp->led_ctrl);
12902 break;
12903 }
12904
12905 return 0;
12906}
12907
12908static void tg3_get_ethtool_stats(struct net_device *dev,
12909 struct ethtool_stats *estats, u64 *tmp_stats)
12910{
12911 struct tg3 *tp = netdev_priv(dev);
12912
12913 if (tp->hw_stats)
12914 tg3_get_estats(tp, estats: (struct tg3_ethtool_stats *)tmp_stats);
12915 else
12916 memset(s: tmp_stats, c: 0, n: sizeof(struct tg3_ethtool_stats));
12917}
12918
12919static __be32 *tg3_vpd_readblock(struct tg3 *tp, unsigned int *vpdlen)
12920{
12921 int i;
12922 __be32 *buf;
12923 u32 offset = 0, len = 0;
12924 u32 magic, val;
12925
12926 if (tg3_flag(tp, NO_NVRAM) || tg3_nvram_read(tp, offset: 0, val: &magic))
12927 return NULL;
12928
12929 if (magic == TG3_EEPROM_MAGIC) {
12930 for (offset = TG3_NVM_DIR_START;
12931 offset < TG3_NVM_DIR_END;
12932 offset += TG3_NVM_DIRENT_SIZE) {
12933 if (tg3_nvram_read(tp, offset, val: &val))
12934 return NULL;
12935
12936 if ((val >> TG3_NVM_DIRTYPE_SHIFT) ==
12937 TG3_NVM_DIRTYPE_EXTVPD)
12938 break;
12939 }
12940
12941 if (offset != TG3_NVM_DIR_END) {
12942 len = (val & TG3_NVM_DIRTYPE_LENMSK) * 4;
12943 if (tg3_nvram_read(tp, offset: offset + 4, val: &offset))
12944 return NULL;
12945
12946 offset = tg3_nvram_logical_addr(tp, addr: offset);
12947 }
12948
12949 if (!offset || !len) {
12950 offset = TG3_NVM_VPD_OFF;
12951 len = TG3_NVM_VPD_LEN;
12952 }
12953
12954 buf = kmalloc(len, GFP_KERNEL);
12955 if (!buf)
12956 return NULL;
12957
12958 for (i = 0; i < len; i += 4) {
12959 /* The data is in little-endian format in NVRAM.
12960 * Use the big-endian read routines to preserve
12961 * the byte order as it exists in NVRAM.
12962 */
12963 if (tg3_nvram_read_be32(tp, offset: offset + i, val: &buf[i/4]))
12964 goto error;
12965 }
12966 *vpdlen = len;
12967 } else {
12968 buf = pci_vpd_alloc(dev: tp->pdev, size: vpdlen);
12969 if (IS_ERR(ptr: buf))
12970 return NULL;
12971 }
12972
12973 return buf;
12974
12975error:
12976 kfree(objp: buf);
12977 return NULL;
12978}
12979
12980#define NVRAM_TEST_SIZE 0x100
12981#define NVRAM_SELFBOOT_FORMAT1_0_SIZE 0x14
12982#define NVRAM_SELFBOOT_FORMAT1_2_SIZE 0x18
12983#define NVRAM_SELFBOOT_FORMAT1_3_SIZE 0x1c
12984#define NVRAM_SELFBOOT_FORMAT1_4_SIZE 0x20
12985#define NVRAM_SELFBOOT_FORMAT1_5_SIZE 0x24
12986#define NVRAM_SELFBOOT_FORMAT1_6_SIZE 0x50
12987#define NVRAM_SELFBOOT_HW_SIZE 0x20
12988#define NVRAM_SELFBOOT_DATA_SIZE 0x1c
12989
12990static int tg3_test_nvram(struct tg3 *tp)
12991{
12992 u32 csum, magic;
12993 __be32 *buf;
12994 int i, j, k, err = 0, size;
12995 unsigned int len;
12996
12997 if (tg3_flag(tp, NO_NVRAM))
12998 return 0;
12999
13000 if (tg3_nvram_read(tp, offset: 0, val: &magic) != 0)
13001 return -EIO;
13002
13003 if (magic == TG3_EEPROM_MAGIC)
13004 size = NVRAM_TEST_SIZE;
13005 else if ((magic & TG3_EEPROM_MAGIC_FW_MSK) == TG3_EEPROM_MAGIC_FW) {
13006 if ((magic & TG3_EEPROM_SB_FORMAT_MASK) ==
13007 TG3_EEPROM_SB_FORMAT_1) {
13008 switch (magic & TG3_EEPROM_SB_REVISION_MASK) {
13009 case TG3_EEPROM_SB_REVISION_0:
13010 size = NVRAM_SELFBOOT_FORMAT1_0_SIZE;
13011 break;
13012 case TG3_EEPROM_SB_REVISION_2:
13013 size = NVRAM_SELFBOOT_FORMAT1_2_SIZE;
13014 break;
13015 case TG3_EEPROM_SB_REVISION_3:
13016 size = NVRAM_SELFBOOT_FORMAT1_3_SIZE;
13017 break;
13018 case TG3_EEPROM_SB_REVISION_4:
13019 size = NVRAM_SELFBOOT_FORMAT1_4_SIZE;
13020 break;
13021 case TG3_EEPROM_SB_REVISION_5:
13022 size = NVRAM_SELFBOOT_FORMAT1_5_SIZE;
13023 break;
13024 case TG3_EEPROM_SB_REVISION_6:
13025 size = NVRAM_SELFBOOT_FORMAT1_6_SIZE;
13026 break;
13027 default:
13028 return -EIO;
13029 }
13030 } else
13031 return 0;
13032 } else if ((magic & TG3_EEPROM_MAGIC_HW_MSK) == TG3_EEPROM_MAGIC_HW)
13033 size = NVRAM_SELFBOOT_HW_SIZE;
13034 else
13035 return -EIO;
13036
13037 buf = kmalloc(size, GFP_KERNEL);
13038 if (buf == NULL)
13039 return -ENOMEM;
13040
13041 err = -EIO;
13042 for (i = 0, j = 0; i < size; i += 4, j++) {
13043 err = tg3_nvram_read_be32(tp, offset: i, val: &buf[j]);
13044 if (err)
13045 break;
13046 }
13047 if (i < size)
13048 goto out;
13049
13050 /* Selfboot format */
13051 magic = be32_to_cpu(buf[0]);
13052 if ((magic & TG3_EEPROM_MAGIC_FW_MSK) ==
13053 TG3_EEPROM_MAGIC_FW) {
13054 u8 *buf8 = (u8 *) buf, csum8 = 0;
13055
13056 if ((magic & TG3_EEPROM_SB_REVISION_MASK) ==
13057 TG3_EEPROM_SB_REVISION_2) {
13058 /* For rev 2, the csum doesn't include the MBA. */
13059 for (i = 0; i < TG3_EEPROM_SB_F1R2_MBA_OFF; i++)
13060 csum8 += buf8[i];
13061 for (i = TG3_EEPROM_SB_F1R2_MBA_OFF + 4; i < size; i++)
13062 csum8 += buf8[i];
13063 } else {
13064 for (i = 0; i < size; i++)
13065 csum8 += buf8[i];
13066 }
13067
13068 if (csum8 == 0) {
13069 err = 0;
13070 goto out;
13071 }
13072
13073 err = -EIO;
13074 goto out;
13075 }
13076
13077 if ((magic & TG3_EEPROM_MAGIC_HW_MSK) ==
13078 TG3_EEPROM_MAGIC_HW) {
13079 u8 data[NVRAM_SELFBOOT_DATA_SIZE];
13080 u8 parity[NVRAM_SELFBOOT_DATA_SIZE];
13081 u8 *buf8 = (u8 *) buf;
13082
13083 /* Separate the parity bits and the data bytes. */
13084 for (i = 0, j = 0, k = 0; i < NVRAM_SELFBOOT_HW_SIZE; i++) {
13085 if ((i == 0) || (i == 8)) {
13086 int l;
13087 u8 msk;
13088
13089 for (l = 0, msk = 0x80; l < 7; l++, msk >>= 1)
13090 parity[k++] = buf8[i] & msk;
13091 i++;
13092 } else if (i == 16) {
13093 int l;
13094 u8 msk;
13095
13096 for (l = 0, msk = 0x20; l < 6; l++, msk >>= 1)
13097 parity[k++] = buf8[i] & msk;
13098 i++;
13099
13100 for (l = 0, msk = 0x80; l < 8; l++, msk >>= 1)
13101 parity[k++] = buf8[i] & msk;
13102 i++;
13103 }
13104 data[j++] = buf8[i];
13105 }
13106
13107 err = -EIO;
13108 for (i = 0; i < NVRAM_SELFBOOT_DATA_SIZE; i++) {
13109 u8 hw8 = hweight8(data[i]);
13110
13111 if ((hw8 & 0x1) && parity[i])
13112 goto out;
13113 else if (!(hw8 & 0x1) && !parity[i])
13114 goto out;
13115 }
13116 err = 0;
13117 goto out;
13118 }
13119
13120 err = -EIO;
13121
13122 /* Bootstrap checksum at offset 0x10 */
13123 csum = calc_crc(buf: (unsigned char *) buf, len: 0x10);
13124
13125 /* The type of buf is __be32 *, but this value is __le32 */
13126 if (csum != le32_to_cpu((__force __le32)buf[0x10 / 4]))
13127 goto out;
13128
13129 /* Manufacturing block starts at offset 0x74, checksum at 0xfc */
13130 csum = calc_crc(buf: (unsigned char *)&buf[0x74 / 4], len: 0x88);
13131
13132 /* The type of buf is __be32 *, but this value is __le32 */
13133 if (csum != le32_to_cpu((__force __le32)buf[0xfc / 4]))
13134 goto out;
13135
13136 kfree(objp: buf);
13137
13138 buf = tg3_vpd_readblock(tp, vpdlen: &len);
13139 if (!buf)
13140 return -ENOMEM;
13141
13142 err = pci_vpd_check_csum(buf, len);
13143 /* go on if no checksum found */
13144 if (err == 1)
13145 err = 0;
13146out:
13147 kfree(objp: buf);
13148 return err;
13149}
13150
13151#define TG3_SERDES_TIMEOUT_SEC 2
13152#define TG3_COPPER_TIMEOUT_SEC 6
13153
13154static int tg3_test_link(struct tg3 *tp)
13155{
13156 int i, max;
13157
13158 if (!netif_running(dev: tp->dev))
13159 return -ENODEV;
13160
13161 if (tp->phy_flags & TG3_PHYFLG_ANY_SERDES)
13162 max = TG3_SERDES_TIMEOUT_SEC;
13163 else
13164 max = TG3_COPPER_TIMEOUT_SEC;
13165
13166 for (i = 0; i < max; i++) {
13167 if (tp->link_up)
13168 return 0;
13169
13170 if (msleep_interruptible(msecs: 1000))
13171 break;
13172 }
13173
13174 return -EIO;
13175}
13176
13177/* Only test the commonly used registers */
13178static int tg3_test_registers(struct tg3 *tp)
13179{
13180 int i, is_5705, is_5750;
13181 u32 offset, read_mask, write_mask, val, save_val, read_val;
13182 static struct {
13183 u16 offset;
13184 u16 flags;
13185#define TG3_FL_5705 0x1
13186#define TG3_FL_NOT_5705 0x2
13187#define TG3_FL_NOT_5788 0x4
13188#define TG3_FL_NOT_5750 0x8
13189 u32 read_mask;
13190 u32 write_mask;
13191 } reg_tbl[] = {
13192 /* MAC Control Registers */
13193 { MAC_MODE, TG3_FL_NOT_5705,
13194 0x00000000, 0x00ef6f8c },
13195 { MAC_MODE, TG3_FL_5705,
13196 0x00000000, 0x01ef6b8c },
13197 { MAC_STATUS, TG3_FL_NOT_5705,
13198 0x03800107, 0x00000000 },
13199 { MAC_STATUS, TG3_FL_5705,
13200 0x03800100, 0x00000000 },
13201 { MAC_ADDR_0_HIGH, 0x0000,
13202 0x00000000, 0x0000ffff },
13203 { MAC_ADDR_0_LOW, 0x0000,
13204 0x00000000, 0xffffffff },
13205 { MAC_RX_MTU_SIZE, .flags: 0x0000,
13206 .read_mask: 0x00000000, .write_mask: 0x0000ffff },
13207 { MAC_TX_MODE, 0x0000,
13208 0x00000000, 0x00000070 },
13209 { MAC_TX_LENGTHS, 0x0000,
13210 0x00000000, 0x00003fff },
13211 { MAC_RX_MODE, TG3_FL_NOT_5705,
13212 0x00000000, 0x000007fc },
13213 { MAC_RX_MODE, TG3_FL_5705,
13214 0x00000000, 0x000007dc },
13215 { MAC_HASH_REG_0, 0x0000,
13216 0x00000000, 0xffffffff },
13217 { MAC_HASH_REG_1, .flags: 0x0000,
13218 .read_mask: 0x00000000, .write_mask: 0xffffffff },
13219 { MAC_HASH_REG_2, .flags: 0x0000,
13220 .read_mask: 0x00000000, .write_mask: 0xffffffff },
13221 { MAC_HASH_REG_3, .flags: 0x0000,
13222 .read_mask: 0x00000000, .write_mask: 0xffffffff },
13223
13224 /* Receive Data and Receive BD Initiator Control Registers. */
13225 { RCVDBDI_JUMBO_BD+0, TG3_FL_NOT_5705,
13226 .read_mask: 0x00000000, .write_mask: 0xffffffff },
13227 { RCVDBDI_JUMBO_BD+4, TG3_FL_NOT_5705,
13228 .read_mask: 0x00000000, .write_mask: 0xffffffff },
13229 { RCVDBDI_JUMBO_BD+8, TG3_FL_NOT_5705,
13230 .read_mask: 0x00000000, .write_mask: 0x00000003 },
13231 { RCVDBDI_JUMBO_BD+0xc, TG3_FL_NOT_5705,
13232 0x00000000, 0xffffffff },
13233 { RCVDBDI_STD_BD+0, .flags: 0x0000,
13234 .read_mask: 0x00000000, .write_mask: 0xffffffff },
13235 { RCVDBDI_STD_BD+4, .flags: 0x0000,
13236 .read_mask: 0x00000000, .write_mask: 0xffffffff },
13237 { RCVDBDI_STD_BD+8, .flags: 0x0000,
13238 .read_mask: 0x00000000, .write_mask: 0xffff0002 },
13239 { RCVDBDI_STD_BD+0xc, .flags: 0x0000,
13240 .read_mask: 0x00000000, .write_mask: 0xffffffff },
13241
13242 /* Receive BD Initiator Control Registers. */
13243 { RCVBDI_STD_THRESH, TG3_FL_NOT_5705,
13244 .read_mask: 0x00000000, .write_mask: 0xffffffff },
13245 { RCVBDI_STD_THRESH, TG3_FL_5705,
13246 .read_mask: 0x00000000, .write_mask: 0x000003ff },
13247 { RCVBDI_JUMBO_THRESH, TG3_FL_NOT_5705,
13248 0x00000000, 0xffffffff },
13249
13250 /* Host Coalescing Control Registers. */
13251 { HOSTCC_MODE, TG3_FL_NOT_5705,
13252 .read_mask: 0x00000000, .write_mask: 0x00000004 },
13253 { HOSTCC_MODE, TG3_FL_5705,
13254 0x00000000, 0x000000f6 },
13255 { HOSTCC_RXCOL_TICKS, TG3_FL_NOT_5705,
13256 0x00000000, 0xffffffff },
13257 { HOSTCC_RXCOL_TICKS, TG3_FL_5705,
13258 .read_mask: 0x00000000, .write_mask: 0x000003ff },
13259 { HOSTCC_TXCOL_TICKS, TG3_FL_NOT_5705,
13260 0x00000000, 0xffffffff },
13261 { HOSTCC_TXCOL_TICKS, TG3_FL_5705,
13262 .read_mask: 0x00000000, .write_mask: 0x000003ff },
13263 { HOSTCC_RXMAX_FRAMES, TG3_FL_NOT_5705,
13264 0x00000000, 0xffffffff },
13265 { HOSTCC_RXMAX_FRAMES, TG3_FL_5705 | TG3_FL_NOT_5788,
13266 .read_mask: 0x00000000, .write_mask: 0x000000ff },
13267 { HOSTCC_TXMAX_FRAMES, TG3_FL_NOT_5705,
13268 0x00000000, 0xffffffff },
13269 { HOSTCC_TXMAX_FRAMES, TG3_FL_5705 | TG3_FL_NOT_5788,
13270 .read_mask: 0x00000000, .write_mask: 0x000000ff },
13271 { HOSTCC_RXCOAL_TICK_INT, TG3_FL_NOT_5705,
13272 0x00000000, 0xffffffff },
13273 { HOSTCC_TXCOAL_TICK_INT, TG3_FL_NOT_5705,
13274 .read_mask: 0x00000000, .write_mask: 0xffffffff },
13275 { HOSTCC_RXCOAL_MAXF_INT, TG3_FL_NOT_5705,
13276 .read_mask: 0x00000000, .write_mask: 0xffffffff },
13277 { HOSTCC_RXCOAL_MAXF_INT, TG3_FL_5705 | TG3_FL_NOT_5788,
13278 .read_mask: 0x00000000, .write_mask: 0x000000ff },
13279 { HOSTCC_TXCOAL_MAXF_INT, TG3_FL_NOT_5705,
13280 0x00000000, 0xffffffff },
13281 { HOSTCC_TXCOAL_MAXF_INT, TG3_FL_5705 | TG3_FL_NOT_5788,
13282 .read_mask: 0x00000000, .write_mask: 0x000000ff },
13283 { HOSTCC_STAT_COAL_TICKS, TG3_FL_NOT_5705,
13284 0x00000000, 0xffffffff },
13285 { HOSTCC_STATS_BLK_HOST_ADDR, TG3_FL_NOT_5705,
13286 .read_mask: 0x00000000, .write_mask: 0xffffffff },
13287 { HOSTCC_STATS_BLK_HOST_ADDR+4, TG3_FL_NOT_5705,
13288 .read_mask: 0x00000000, .write_mask: 0xffffffff },
13289 { HOSTCC_STATUS_BLK_HOST_ADDR, .flags: 0x0000,
13290 .read_mask: 0x00000000, .write_mask: 0xffffffff },
13291 { HOSTCC_STATUS_BLK_HOST_ADDR+4, .flags: 0x0000,
13292 .read_mask: 0x00000000, .write_mask: 0xffffffff },
13293 { HOSTCC_STATS_BLK_NIC_ADDR, .flags: 0x0000,
13294 .read_mask: 0xffffffff, .write_mask: 0x00000000 },
13295 { HOSTCC_STATUS_BLK_NIC_ADDR, .flags: 0x0000,
13296 .read_mask: 0xffffffff, .write_mask: 0x00000000 },
13297
13298 /* Buffer Manager Control Registers. */
13299 { BUFMGR_MB_POOL_ADDR, TG3_FL_NOT_5750,
13300 .read_mask: 0x00000000, .write_mask: 0x007fff80 },
13301 { BUFMGR_MB_POOL_SIZE, TG3_FL_NOT_5750,
13302 0x00000000, 0x007fffff },
13303 { BUFMGR_MB_RDMA_LOW_WATER, 0x0000,
13304 0x00000000, 0x0000003f },
13305 { BUFMGR_MB_MACRX_LOW_WATER, 0x0000,
13306 0x00000000, 0x000001ff },
13307 { BUFMGR_MB_HIGH_WATER, 0x0000,
13308 0x00000000, 0x000001ff },
13309 { BUFMGR_DMA_DESC_POOL_ADDR, TG3_FL_NOT_5705,
13310 0xffffffff, 0x00000000 },
13311 { BUFMGR_DMA_DESC_POOL_SIZE, TG3_FL_NOT_5705,
13312 .read_mask: 0xffffffff, .write_mask: 0x00000000 },
13313
13314 /* Mailbox Registers */
13315 { GRCMBOX_RCVSTD_PROD_IDX+4, .flags: 0x0000,
13316 .read_mask: 0x00000000, .write_mask: 0x000001ff },
13317 { GRCMBOX_RCVJUMBO_PROD_IDX+4, TG3_FL_NOT_5705,
13318 0x00000000, 0x000001ff },
13319 { GRCMBOX_RCVRET_CON_IDX_0+4, 0x0000,
13320 0x00000000, 0x000007ff },
13321 { GRCMBOX_SNDHOST_PROD_IDX_0+4, 0x0000,
13322 0x00000000, 0x000001ff },
13323
13324 { 0xffff, 0x0000, 0x00000000, 0x00000000 },
13325 };
13326
13327 is_5705 = is_5750 = 0;
13328 if (tg3_flag(tp, 5705_PLUS)) {
13329 is_5705 = 1;
13330 if (tg3_flag(tp, 5750_PLUS))
13331 is_5750 = 1;
13332 }
13333
13334 for (i = 0; reg_tbl[i].offset != 0xffff; i++) {
13335 if (is_5705 && (reg_tbl[i].flags & TG3_FL_NOT_5705))
13336 continue;
13337
13338 if (!is_5705 && (reg_tbl[i].flags & TG3_FL_5705))
13339 continue;
13340
13341 if (tg3_flag(tp, IS_5788) &&
13342 (reg_tbl[i].flags & TG3_FL_NOT_5788))
13343 continue;
13344
13345 if (is_5750 && (reg_tbl[i].flags & TG3_FL_NOT_5750))
13346 continue;
13347
13348 offset = (u32) reg_tbl[i].offset;
13349 read_mask = reg_tbl[i].read_mask;
13350 write_mask = reg_tbl[i].write_mask;
13351
13352 /* Save the original register content */
13353 save_val = tr32(offset);
13354
13355 /* Determine the read-only value. */
13356 read_val = save_val & read_mask;
13357
13358 /* Write zero to the register, then make sure the read-only bits
13359 * are not changed and the read/write bits are all zeros.
13360 */
13361 tw32(offset, 0);
13362
13363 val = tr32(offset);
13364
13365 /* Test the read-only and read/write bits. */
13366 if (((val & read_mask) != read_val) || (val & write_mask))
13367 goto out;
13368
13369 /* Write ones to all the bits defined by RdMask and WrMask, then
13370 * make sure the read-only bits are not changed and the
13371 * read/write bits are all ones.
13372 */
13373 tw32(offset, read_mask | write_mask);
13374
13375 val = tr32(offset);
13376
13377 /* Test the read-only bits. */
13378 if ((val & read_mask) != read_val)
13379 goto out;
13380
13381 /* Test the read/write bits. */
13382 if ((val & write_mask) != write_mask)
13383 goto out;
13384
13385 tw32(offset, save_val);
13386 }
13387
13388 return 0;
13389
13390out:
13391 if (netif_msg_hw(tp))
13392 netdev_err(dev: tp->dev,
13393 format: "Register test failed at offset %x\n", offset);
13394 tw32(offset, save_val);
13395 return -EIO;
13396}
13397
13398static int tg3_do_mem_test(struct tg3 *tp, u32 offset, u32 len)
13399{
13400 static const u32 test_pattern[] = { 0x00000000, 0xffffffff, 0xaa55a55a };
13401 int i;
13402 u32 j;
13403
13404 for (i = 0; i < ARRAY_SIZE(test_pattern); i++) {
13405 for (j = 0; j < len; j += 4) {
13406 u32 val;
13407
13408 tg3_write_mem(tp, off: offset + j, val: test_pattern[i]);
13409 tg3_read_mem(tp, off: offset + j, val: &val);
13410 if (val != test_pattern[i])
13411 return -EIO;
13412 }
13413 }
13414 return 0;
13415}
13416
13417static int tg3_test_memory(struct tg3 *tp)
13418{
13419 static struct mem_entry {
13420 u32 offset;
13421 u32 len;
13422 } mem_tbl_570x[] = {
13423 { 0x00000000, 0x00b50},
13424 { 0x00002000, 0x1c000},
13425 { 0xffffffff, 0x00000}
13426 }, mem_tbl_5705[] = {
13427 { 0x00000100, 0x0000c},
13428 { 0x00000200, 0x00008},
13429 { 0x00004000, 0x00800},
13430 { 0x00006000, 0x01000},
13431 { 0x00008000, 0x02000},
13432 { 0x00010000, 0x0e000},
13433 { 0xffffffff, 0x00000}
13434 }, mem_tbl_5755[] = {
13435 { 0x00000200, 0x00008},
13436 { 0x00004000, 0x00800},
13437 { 0x00006000, 0x00800},
13438 { 0x00008000, 0x02000},
13439 { 0x00010000, 0x0c000},
13440 { 0xffffffff, 0x00000}
13441 }, mem_tbl_5906[] = {
13442 { 0x00000200, 0x00008},
13443 { 0x00004000, 0x00400},
13444 { 0x00006000, 0x00400},
13445 { 0x00008000, 0x01000},
13446 { 0x00010000, 0x01000},
13447 { 0xffffffff, 0x00000}
13448 }, mem_tbl_5717[] = {
13449 { 0x00000200, 0x00008},
13450 { 0x00010000, 0x0a000},
13451 { 0x00020000, 0x13c00},
13452 { 0xffffffff, 0x00000}
13453 }, mem_tbl_57765[] = {
13454 { 0x00000200, 0x00008},
13455 { 0x00004000, 0x00800},
13456 { 0x00006000, 0x09800},
13457 { 0x00010000, 0x0a000},
13458 { 0xffffffff, 0x00000}
13459 };
13460 struct mem_entry *mem_tbl;
13461 int err = 0;
13462 int i;
13463
13464 if (tg3_flag(tp, 5717_PLUS))
13465 mem_tbl = mem_tbl_5717;
13466 else if (tg3_flag(tp, 57765_CLASS) ||
13467 tg3_asic_rev(tp) == ASIC_REV_5762)
13468 mem_tbl = mem_tbl_57765;
13469 else if (tg3_flag(tp, 5755_PLUS))
13470 mem_tbl = mem_tbl_5755;
13471 else if (tg3_asic_rev(tp) == ASIC_REV_5906)
13472 mem_tbl = mem_tbl_5906;
13473 else if (tg3_flag(tp, 5705_PLUS))
13474 mem_tbl = mem_tbl_5705;
13475 else
13476 mem_tbl = mem_tbl_570x;
13477
13478 for (i = 0; mem_tbl[i].offset != 0xffffffff; i++) {
13479 err = tg3_do_mem_test(tp, offset: mem_tbl[i].offset, len: mem_tbl[i].len);
13480 if (err)
13481 break;
13482 }
13483
13484 return err;
13485}
13486
13487#define TG3_TSO_MSS 500
13488
13489#define TG3_TSO_IP_HDR_LEN 20
13490#define TG3_TSO_TCP_HDR_LEN 20
13491#define TG3_TSO_TCP_OPT_LEN 12
13492
13493static const u8 tg3_tso_header[] = {
134940x08, 0x00,
134950x45, 0x00, 0x00, 0x00,
134960x00, 0x00, 0x40, 0x00,
134970x40, 0x06, 0x00, 0x00,
134980x0a, 0x00, 0x00, 0x01,
134990x0a, 0x00, 0x00, 0x02,
135000x0d, 0x00, 0xe0, 0x00,
135010x00, 0x00, 0x01, 0x00,
135020x00, 0x00, 0x02, 0x00,
135030x80, 0x10, 0x10, 0x00,
135040x14, 0x09, 0x00, 0x00,
135050x01, 0x01, 0x08, 0x0a,
135060x11, 0x11, 0x11, 0x11,
135070x11, 0x11, 0x11, 0x11,
13508};
13509
13510static int tg3_run_loopback(struct tg3 *tp, u32 pktsz, bool tso_loopback)
13511{
13512 u32 rx_start_idx, rx_idx, tx_idx, opaque_key;
13513 u32 base_flags = 0, mss = 0, desc_idx, coal_now, data_off, val;
13514 u32 budget;
13515 struct sk_buff *skb;
13516 u8 *tx_data, *rx_data;
13517 dma_addr_t map;
13518 int num_pkts, tx_len, rx_len, i, err;
13519 struct tg3_rx_buffer_desc *desc;
13520 struct tg3_napi *tnapi, *rnapi;
13521 struct tg3_rx_prodring_set *tpr = &tp->napi[0].prodring;
13522
13523 tnapi = &tp->napi[0];
13524 rnapi = &tp->napi[0];
13525 if (tp->irq_cnt > 1) {
13526 if (tg3_flag(tp, ENABLE_RSS))
13527 rnapi = &tp->napi[1];
13528 if (tg3_flag(tp, ENABLE_TSS))
13529 tnapi = &tp->napi[1];
13530 }
13531 coal_now = tnapi->coal_now | rnapi->coal_now;
13532
13533 err = -EIO;
13534
13535 tx_len = pktsz;
13536 skb = netdev_alloc_skb(dev: tp->dev, length: tx_len);
13537 if (!skb)
13538 return -ENOMEM;
13539
13540 tx_data = skb_put(skb, len: tx_len);
13541 memcpy(to: tx_data, from: tp->dev->dev_addr, ETH_ALEN);
13542 memset(s: tx_data + ETH_ALEN, c: 0x0, n: 8);
13543
13544 tw32(MAC_RX_MTU_SIZE, tx_len + ETH_FCS_LEN);
13545
13546 if (tso_loopback) {
13547 struct iphdr *iph = (struct iphdr *)&tx_data[ETH_HLEN];
13548
13549 u32 hdr_len = TG3_TSO_IP_HDR_LEN + TG3_TSO_TCP_HDR_LEN +
13550 TG3_TSO_TCP_OPT_LEN;
13551
13552 memcpy(to: tx_data + ETH_ALEN * 2, from: tg3_tso_header,
13553 len: sizeof(tg3_tso_header));
13554 mss = TG3_TSO_MSS;
13555
13556 val = tx_len - ETH_ALEN * 2 - sizeof(tg3_tso_header);
13557 num_pkts = DIV_ROUND_UP(val, TG3_TSO_MSS);
13558
13559 /* Set the total length field in the IP header */
13560 iph->tot_len = htons((u16)(mss + hdr_len));
13561
13562 base_flags = (TXD_FLAG_CPU_PRE_DMA |
13563 TXD_FLAG_CPU_POST_DMA);
13564
13565 if (tg3_flag(tp, HW_TSO_1) ||
13566 tg3_flag(tp, HW_TSO_2) ||
13567 tg3_flag(tp, HW_TSO_3)) {
13568 struct tcphdr *th;
13569 val = ETH_HLEN + TG3_TSO_IP_HDR_LEN;
13570 th = (struct tcphdr *)&tx_data[val];
13571 th->check = 0;
13572 } else
13573 base_flags |= TXD_FLAG_TCPUDP_CSUM;
13574
13575 if (tg3_flag(tp, HW_TSO_3)) {
13576 mss |= (hdr_len & 0xc) << 12;
13577 if (hdr_len & 0x10)
13578 base_flags |= 0x00000010;
13579 base_flags |= (hdr_len & 0x3e0) << 5;
13580 } else if (tg3_flag(tp, HW_TSO_2))
13581 mss |= hdr_len << 9;
13582 else if (tg3_flag(tp, HW_TSO_1) ||
13583 tg3_asic_rev(tp) == ASIC_REV_5705) {
13584 mss |= (TG3_TSO_TCP_OPT_LEN << 9);
13585 } else {
13586 base_flags |= (TG3_TSO_TCP_OPT_LEN << 10);
13587 }
13588
13589 data_off = ETH_ALEN * 2 + sizeof(tg3_tso_header);
13590 } else {
13591 num_pkts = 1;
13592 data_off = ETH_HLEN;
13593
13594 if (tg3_flag(tp, USE_JUMBO_BDFLAG) &&
13595 tx_len > VLAN_ETH_FRAME_LEN)
13596 base_flags |= TXD_FLAG_JMB_PKT;
13597 }
13598
13599 for (i = data_off; i < tx_len; i++)
13600 tx_data[i] = (u8) (i & 0xff);
13601
13602 map = dma_map_single(&tp->pdev->dev, skb->data, tx_len, DMA_TO_DEVICE);
13603 if (dma_mapping_error(dev: &tp->pdev->dev, dma_addr: map)) {
13604 dev_kfree_skb(skb);
13605 return -EIO;
13606 }
13607
13608 val = tnapi->tx_prod;
13609 tnapi->tx_buffers[val].skb = skb;
13610 dma_unmap_addr_set(&tnapi->tx_buffers[val], mapping, map);
13611
13612 tw32_f(HOSTCC_MODE, tp->coalesce_mode | HOSTCC_MODE_ENABLE |
13613 rnapi->coal_now);
13614
13615 udelay(usec: 10);
13616
13617 rx_start_idx = rnapi->hw_status->idx[0].rx_producer;
13618
13619 budget = tg3_tx_avail(tnapi);
13620 if (tg3_tx_frag_set(tnapi, entry: &val, budget: &budget, map, len: tx_len,
13621 flags: base_flags | TXD_FLAG_END, mss, vlan: 0)) {
13622 tnapi->tx_buffers[val].skb = NULL;
13623 dev_kfree_skb(skb);
13624 return -EIO;
13625 }
13626
13627 tnapi->tx_prod++;
13628
13629 /* Sync BD data before updating mailbox */
13630 wmb();
13631
13632 tw32_tx_mbox(tnapi->prodmbox, tnapi->tx_prod);
13633 tr32_mailbox(tnapi->prodmbox);
13634
13635 udelay(usec: 10);
13636
13637 /* 350 usec to allow enough time on some 10/100 Mbps devices. */
13638 for (i = 0; i < 35; i++) {
13639 tw32_f(HOSTCC_MODE, tp->coalesce_mode | HOSTCC_MODE_ENABLE |
13640 coal_now);
13641
13642 udelay(usec: 10);
13643
13644 tx_idx = tnapi->hw_status->idx[0].tx_consumer;
13645 rx_idx = rnapi->hw_status->idx[0].rx_producer;
13646 if ((tx_idx == tnapi->tx_prod) &&
13647 (rx_idx == (rx_start_idx + num_pkts)))
13648 break;
13649 }
13650
13651 tg3_tx_skb_unmap(tnapi, entry: tnapi->tx_prod - 1, last: -1);
13652 dev_kfree_skb(skb);
13653
13654 if (tx_idx != tnapi->tx_prod)
13655 goto out;
13656
13657 if (rx_idx != rx_start_idx + num_pkts)
13658 goto out;
13659
13660 val = data_off;
13661 while (rx_idx != rx_start_idx) {
13662 desc = &rnapi->rx_rcb[rx_start_idx++];
13663 desc_idx = desc->opaque & RXD_OPAQUE_INDEX_MASK;
13664 opaque_key = desc->opaque & RXD_OPAQUE_RING_MASK;
13665
13666 if ((desc->err_vlan & RXD_ERR_MASK) != 0 &&
13667 (desc->err_vlan != RXD_ERR_ODD_NIBBLE_RCVD_MII))
13668 goto out;
13669
13670 rx_len = ((desc->idx_len & RXD_LEN_MASK) >> RXD_LEN_SHIFT)
13671 - ETH_FCS_LEN;
13672
13673 if (!tso_loopback) {
13674 if (rx_len != tx_len)
13675 goto out;
13676
13677 if (pktsz <= TG3_RX_STD_DMA_SZ - ETH_FCS_LEN) {
13678 if (opaque_key != RXD_OPAQUE_RING_STD)
13679 goto out;
13680 } else {
13681 if (opaque_key != RXD_OPAQUE_RING_JUMBO)
13682 goto out;
13683 }
13684 } else if ((desc->type_flags & RXD_FLAG_TCPUDP_CSUM) &&
13685 (desc->ip_tcp_csum & RXD_TCPCSUM_MASK)
13686 >> RXD_TCPCSUM_SHIFT != 0xffff) {
13687 goto out;
13688 }
13689
13690 if (opaque_key == RXD_OPAQUE_RING_STD) {
13691 rx_data = tpr->rx_std_buffers[desc_idx].data;
13692 map = dma_unmap_addr(&tpr->rx_std_buffers[desc_idx],
13693 mapping);
13694 } else if (opaque_key == RXD_OPAQUE_RING_JUMBO) {
13695 rx_data = tpr->rx_jmb_buffers[desc_idx].data;
13696 map = dma_unmap_addr(&tpr->rx_jmb_buffers[desc_idx],
13697 mapping);
13698 } else
13699 goto out;
13700
13701 dma_sync_single_for_cpu(dev: &tp->pdev->dev, addr: map, size: rx_len,
13702 dir: DMA_FROM_DEVICE);
13703
13704 rx_data += TG3_RX_OFFSET(tp);
13705 for (i = data_off; i < rx_len; i++, val++) {
13706 if (*(rx_data + i) != (u8) (val & 0xff))
13707 goto out;
13708 }
13709 }
13710
13711 err = 0;
13712
13713 /* tg3_free_rings will unmap and free the rx_data */
13714out:
13715 return err;
13716}
13717
13718#define TG3_STD_LOOPBACK_FAILED 1
13719#define TG3_JMB_LOOPBACK_FAILED 2
13720#define TG3_TSO_LOOPBACK_FAILED 4
13721#define TG3_LOOPBACK_FAILED \
13722 (TG3_STD_LOOPBACK_FAILED | \
13723 TG3_JMB_LOOPBACK_FAILED | \
13724 TG3_TSO_LOOPBACK_FAILED)
13725
13726static int tg3_test_loopback(struct tg3 *tp, u64 *data, bool do_extlpbk)
13727{
13728 int err = -EIO;
13729 u32 eee_cap;
13730 u32 jmb_pkt_sz = 9000;
13731
13732 if (tp->dma_limit)
13733 jmb_pkt_sz = tp->dma_limit - ETH_HLEN;
13734
13735 eee_cap = tp->phy_flags & TG3_PHYFLG_EEE_CAP;
13736 tp->phy_flags &= ~TG3_PHYFLG_EEE_CAP;
13737
13738 if (!netif_running(dev: tp->dev)) {
13739 data[TG3_MAC_LOOPB_TEST] = TG3_LOOPBACK_FAILED;
13740 data[TG3_PHY_LOOPB_TEST] = TG3_LOOPBACK_FAILED;
13741 if (do_extlpbk)
13742 data[TG3_EXT_LOOPB_TEST] = TG3_LOOPBACK_FAILED;
13743 goto done;
13744 }
13745
13746 err = tg3_reset_hw(tp, reset_phy: true);
13747 if (err) {
13748 data[TG3_MAC_LOOPB_TEST] = TG3_LOOPBACK_FAILED;
13749 data[TG3_PHY_LOOPB_TEST] = TG3_LOOPBACK_FAILED;
13750 if (do_extlpbk)
13751 data[TG3_EXT_LOOPB_TEST] = TG3_LOOPBACK_FAILED;
13752 goto done;
13753 }
13754
13755 if (tg3_flag(tp, ENABLE_RSS)) {
13756 int i;
13757
13758 /* Reroute all rx packets to the 1st queue */
13759 for (i = MAC_RSS_INDIR_TBL_0;
13760 i < MAC_RSS_INDIR_TBL_0 + TG3_RSS_INDIR_TBL_SIZE; i += 4)
13761 tw32(i, 0x0);
13762 }
13763
13764 /* HW errata - mac loopback fails in some cases on 5780.
13765 * Normal traffic and PHY loopback are not affected by
13766 * errata. Also, the MAC loopback test is deprecated for
13767 * all newer ASIC revisions.
13768 */
13769 if (tg3_asic_rev(tp) != ASIC_REV_5780 &&
13770 !tg3_flag(tp, CPMU_PRESENT)) {
13771 tg3_mac_loopback(tp, enable: true);
13772
13773 if (tg3_run_loopback(tp, ETH_FRAME_LEN, tso_loopback: false))
13774 data[TG3_MAC_LOOPB_TEST] |= TG3_STD_LOOPBACK_FAILED;
13775
13776 if (tg3_flag(tp, JUMBO_RING_ENABLE) &&
13777 tg3_run_loopback(tp, pktsz: jmb_pkt_sz + ETH_HLEN, tso_loopback: false))
13778 data[TG3_MAC_LOOPB_TEST] |= TG3_JMB_LOOPBACK_FAILED;
13779
13780 tg3_mac_loopback(tp, enable: false);
13781 }
13782
13783 if (!(tp->phy_flags & TG3_PHYFLG_PHY_SERDES) &&
13784 !tg3_flag(tp, USE_PHYLIB)) {
13785 int i;
13786
13787 tg3_phy_lpbk_set(tp, speed: 0, extlpbk: false);
13788
13789 /* Wait for link */
13790 for (i = 0; i < 100; i++) {
13791 if (tr32(MAC_TX_STATUS) & TX_STATUS_LINK_UP)
13792 break;
13793 mdelay(1);
13794 }
13795
13796 if (tg3_run_loopback(tp, ETH_FRAME_LEN, tso_loopback: false))
13797 data[TG3_PHY_LOOPB_TEST] |= TG3_STD_LOOPBACK_FAILED;
13798 if (tg3_flag(tp, TSO_CAPABLE) &&
13799 tg3_run_loopback(tp, ETH_FRAME_LEN, tso_loopback: true))
13800 data[TG3_PHY_LOOPB_TEST] |= TG3_TSO_LOOPBACK_FAILED;
13801 if (tg3_flag(tp, JUMBO_RING_ENABLE) &&
13802 tg3_run_loopback(tp, pktsz: jmb_pkt_sz + ETH_HLEN, tso_loopback: false))
13803 data[TG3_PHY_LOOPB_TEST] |= TG3_JMB_LOOPBACK_FAILED;
13804
13805 if (do_extlpbk) {
13806 tg3_phy_lpbk_set(tp, speed: 0, extlpbk: true);
13807
13808 /* All link indications report up, but the hardware
13809 * isn't really ready for about 20 msec. Double it
13810 * to be sure.
13811 */
13812 mdelay(40);
13813
13814 if (tg3_run_loopback(tp, ETH_FRAME_LEN, tso_loopback: false))
13815 data[TG3_EXT_LOOPB_TEST] |=
13816 TG3_STD_LOOPBACK_FAILED;
13817 if (tg3_flag(tp, TSO_CAPABLE) &&
13818 tg3_run_loopback(tp, ETH_FRAME_LEN, tso_loopback: true))
13819 data[TG3_EXT_LOOPB_TEST] |=
13820 TG3_TSO_LOOPBACK_FAILED;
13821 if (tg3_flag(tp, JUMBO_RING_ENABLE) &&
13822 tg3_run_loopback(tp, pktsz: jmb_pkt_sz + ETH_HLEN, tso_loopback: false))
13823 data[TG3_EXT_LOOPB_TEST] |=
13824 TG3_JMB_LOOPBACK_FAILED;
13825 }
13826
13827 /* Re-enable gphy autopowerdown. */
13828 if (tp->phy_flags & TG3_PHYFLG_ENABLE_APD)
13829 tg3_phy_toggle_apd(tp, enable: true);
13830 }
13831
13832 err = (data[TG3_MAC_LOOPB_TEST] | data[TG3_PHY_LOOPB_TEST] |
13833 data[TG3_EXT_LOOPB_TEST]) ? -EIO : 0;
13834
13835done:
13836 tp->phy_flags |= eee_cap;
13837
13838 return err;
13839}
13840
13841static void tg3_self_test(struct net_device *dev, struct ethtool_test *etest,
13842 u64 *data)
13843{
13844 struct tg3 *tp = netdev_priv(dev);
13845 bool doextlpbk = etest->flags & ETH_TEST_FL_EXTERNAL_LB;
13846
13847 if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER) {
13848 if (tg3_power_up(tp)) {
13849 etest->flags |= ETH_TEST_FL_FAILED;
13850 memset(s: data, c: 1, n: sizeof(u64) * TG3_NUM_TEST);
13851 return;
13852 }
13853 tg3_ape_driver_state_change(tp, RESET_KIND_INIT);
13854 }
13855
13856 memset(s: data, c: 0, n: sizeof(u64) * TG3_NUM_TEST);
13857
13858 if (tg3_test_nvram(tp) != 0) {
13859 etest->flags |= ETH_TEST_FL_FAILED;
13860 data[TG3_NVRAM_TEST] = 1;
13861 }
13862 if (!doextlpbk && tg3_test_link(tp)) {
13863 etest->flags |= ETH_TEST_FL_FAILED;
13864 data[TG3_LINK_TEST] = 1;
13865 }
13866 if (etest->flags & ETH_TEST_FL_OFFLINE) {
13867 int err, err2 = 0, irq_sync = 0;
13868
13869 if (netif_running(dev)) {
13870 tg3_phy_stop(tp);
13871 tg3_netif_stop(tp);
13872 irq_sync = 1;
13873 }
13874
13875 tg3_full_lock(tp, irq_sync);
13876 tg3_halt(tp, RESET_KIND_SUSPEND, silent: 1);
13877 err = tg3_nvram_lock(tp);
13878 tg3_halt_cpu(tp, RX_CPU_BASE);
13879 if (!tg3_flag(tp, 5705_PLUS))
13880 tg3_halt_cpu(tp, TX_CPU_BASE);
13881 if (!err)
13882 tg3_nvram_unlock(tp);
13883
13884 if (tp->phy_flags & TG3_PHYFLG_MII_SERDES)
13885 tg3_phy_reset(tp);
13886
13887 if (tg3_test_registers(tp) != 0) {
13888 etest->flags |= ETH_TEST_FL_FAILED;
13889 data[TG3_REGISTER_TEST] = 1;
13890 }
13891
13892 if (tg3_test_memory(tp) != 0) {
13893 etest->flags |= ETH_TEST_FL_FAILED;
13894 data[TG3_MEMORY_TEST] = 1;
13895 }
13896
13897 if (doextlpbk)
13898 etest->flags |= ETH_TEST_FL_EXTERNAL_LB_DONE;
13899
13900 if (tg3_test_loopback(tp, data, do_extlpbk: doextlpbk))
13901 etest->flags |= ETH_TEST_FL_FAILED;
13902
13903 tg3_full_unlock(tp);
13904
13905 if (tg3_test_interrupt(tp) != 0) {
13906 etest->flags |= ETH_TEST_FL_FAILED;
13907 data[TG3_INTERRUPT_TEST] = 1;
13908 }
13909
13910 netdev_lock(dev);
13911 tg3_full_lock(tp, irq_sync: 0);
13912
13913 tg3_halt(tp, RESET_KIND_SHUTDOWN, silent: 1);
13914 if (netif_running(dev)) {
13915 tg3_flag_set(tp, INIT_COMPLETE);
13916 err2 = tg3_restart_hw(tp, reset_phy: true);
13917 if (!err2)
13918 tg3_netif_start(tp);
13919 }
13920
13921 tg3_full_unlock(tp);
13922 netdev_unlock(dev);
13923
13924 if (irq_sync && !err2)
13925 tg3_phy_start(tp);
13926 }
13927 if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)
13928 tg3_power_down_prepare(tp);
13929
13930}
13931
13932static int tg3_hwtstamp_set(struct net_device *dev,
13933 struct kernel_hwtstamp_config *stmpconf,
13934 struct netlink_ext_ack *extack)
13935{
13936 struct tg3 *tp = netdev_priv(dev);
13937
13938 if (!tg3_flag(tp, PTP_CAPABLE))
13939 return -EOPNOTSUPP;
13940
13941 if (stmpconf->tx_type != HWTSTAMP_TX_ON &&
13942 stmpconf->tx_type != HWTSTAMP_TX_OFF)
13943 return -ERANGE;
13944
13945 switch (stmpconf->rx_filter) {
13946 case HWTSTAMP_FILTER_NONE:
13947 tp->rxptpctl = 0;
13948 break;
13949 case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
13950 tp->rxptpctl = TG3_RX_PTP_CTL_RX_PTP_V1_EN |
13951 TG3_RX_PTP_CTL_ALL_V1_EVENTS;
13952 break;
13953 case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
13954 tp->rxptpctl = TG3_RX_PTP_CTL_RX_PTP_V1_EN |
13955 TG3_RX_PTP_CTL_SYNC_EVNT;
13956 break;
13957 case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
13958 tp->rxptpctl = TG3_RX_PTP_CTL_RX_PTP_V1_EN |
13959 TG3_RX_PTP_CTL_DELAY_REQ;
13960 break;
13961 case HWTSTAMP_FILTER_PTP_V2_EVENT:
13962 tp->rxptpctl = TG3_RX_PTP_CTL_RX_PTP_V2_EN |
13963 TG3_RX_PTP_CTL_ALL_V2_EVENTS;
13964 break;
13965 case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
13966 tp->rxptpctl = TG3_RX_PTP_CTL_RX_PTP_V2_L2_EN |
13967 TG3_RX_PTP_CTL_ALL_V2_EVENTS;
13968 break;
13969 case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
13970 tp->rxptpctl = TG3_RX_PTP_CTL_RX_PTP_V2_L4_EN |
13971 TG3_RX_PTP_CTL_ALL_V2_EVENTS;
13972 break;
13973 case HWTSTAMP_FILTER_PTP_V2_SYNC:
13974 tp->rxptpctl = TG3_RX_PTP_CTL_RX_PTP_V2_EN |
13975 TG3_RX_PTP_CTL_SYNC_EVNT;
13976 break;
13977 case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
13978 tp->rxptpctl = TG3_RX_PTP_CTL_RX_PTP_V2_L2_EN |
13979 TG3_RX_PTP_CTL_SYNC_EVNT;
13980 break;
13981 case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
13982 tp->rxptpctl = TG3_RX_PTP_CTL_RX_PTP_V2_L4_EN |
13983 TG3_RX_PTP_CTL_SYNC_EVNT;
13984 break;
13985 case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
13986 tp->rxptpctl = TG3_RX_PTP_CTL_RX_PTP_V2_EN |
13987 TG3_RX_PTP_CTL_DELAY_REQ;
13988 break;
13989 case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
13990 tp->rxptpctl = TG3_RX_PTP_CTL_RX_PTP_V2_L2_EN |
13991 TG3_RX_PTP_CTL_DELAY_REQ;
13992 break;
13993 case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
13994 tp->rxptpctl = TG3_RX_PTP_CTL_RX_PTP_V2_L4_EN |
13995 TG3_RX_PTP_CTL_DELAY_REQ;
13996 break;
13997 default:
13998 return -ERANGE;
13999 }
14000
14001 if (netif_running(dev) && tp->rxptpctl)
14002 tw32(TG3_RX_PTP_CTL,
14003 tp->rxptpctl | TG3_RX_PTP_CTL_HWTS_INTERLOCK);
14004
14005 if (stmpconf->tx_type == HWTSTAMP_TX_ON)
14006 tg3_flag_set(tp, TX_TSTAMP_EN);
14007 else
14008 tg3_flag_clear(tp, TX_TSTAMP_EN);
14009
14010 return 0;
14011}
14012
14013static int tg3_hwtstamp_get(struct net_device *dev,
14014 struct kernel_hwtstamp_config *stmpconf)
14015{
14016 struct tg3 *tp = netdev_priv(dev);
14017
14018 if (!tg3_flag(tp, PTP_CAPABLE))
14019 return -EOPNOTSUPP;
14020
14021 stmpconf->flags = 0;
14022 stmpconf->tx_type = tg3_flag(tp, TX_TSTAMP_EN) ?
14023 HWTSTAMP_TX_ON : HWTSTAMP_TX_OFF;
14024
14025 switch (tp->rxptpctl) {
14026 case 0:
14027 stmpconf->rx_filter = HWTSTAMP_FILTER_NONE;
14028 break;
14029 case TG3_RX_PTP_CTL_RX_PTP_V1_EN | TG3_RX_PTP_CTL_ALL_V1_EVENTS:
14030 stmpconf->rx_filter = HWTSTAMP_FILTER_PTP_V1_L4_EVENT;
14031 break;
14032 case TG3_RX_PTP_CTL_RX_PTP_V1_EN | TG3_RX_PTP_CTL_SYNC_EVNT:
14033 stmpconf->rx_filter = HWTSTAMP_FILTER_PTP_V1_L4_SYNC;
14034 break;
14035 case TG3_RX_PTP_CTL_RX_PTP_V1_EN | TG3_RX_PTP_CTL_DELAY_REQ:
14036 stmpconf->rx_filter = HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ;
14037 break;
14038 case TG3_RX_PTP_CTL_RX_PTP_V2_EN | TG3_RX_PTP_CTL_ALL_V2_EVENTS:
14039 stmpconf->rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT;
14040 break;
14041 case TG3_RX_PTP_CTL_RX_PTP_V2_L2_EN | TG3_RX_PTP_CTL_ALL_V2_EVENTS:
14042 stmpconf->rx_filter = HWTSTAMP_FILTER_PTP_V2_L2_EVENT;
14043 break;
14044 case TG3_RX_PTP_CTL_RX_PTP_V2_L4_EN | TG3_RX_PTP_CTL_ALL_V2_EVENTS:
14045 stmpconf->rx_filter = HWTSTAMP_FILTER_PTP_V2_L4_EVENT;
14046 break;
14047 case TG3_RX_PTP_CTL_RX_PTP_V2_EN | TG3_RX_PTP_CTL_SYNC_EVNT:
14048 stmpconf->rx_filter = HWTSTAMP_FILTER_PTP_V2_SYNC;
14049 break;
14050 case TG3_RX_PTP_CTL_RX_PTP_V2_L2_EN | TG3_RX_PTP_CTL_SYNC_EVNT:
14051 stmpconf->rx_filter = HWTSTAMP_FILTER_PTP_V2_L2_SYNC;
14052 break;
14053 case TG3_RX_PTP_CTL_RX_PTP_V2_L4_EN | TG3_RX_PTP_CTL_SYNC_EVNT:
14054 stmpconf->rx_filter = HWTSTAMP_FILTER_PTP_V2_L4_SYNC;
14055 break;
14056 case TG3_RX_PTP_CTL_RX_PTP_V2_EN | TG3_RX_PTP_CTL_DELAY_REQ:
14057 stmpconf->rx_filter = HWTSTAMP_FILTER_PTP_V2_DELAY_REQ;
14058 break;
14059 case TG3_RX_PTP_CTL_RX_PTP_V2_L2_EN | TG3_RX_PTP_CTL_DELAY_REQ:
14060 stmpconf->rx_filter = HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ;
14061 break;
14062 case TG3_RX_PTP_CTL_RX_PTP_V2_L4_EN | TG3_RX_PTP_CTL_DELAY_REQ:
14063 stmpconf->rx_filter = HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ;
14064 break;
14065 default:
14066 WARN_ON_ONCE(1);
14067 return -ERANGE;
14068 }
14069
14070 return 0;
14071}
14072
14073static int tg3_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
14074{
14075 struct mii_ioctl_data *data = if_mii(rq: ifr);
14076 struct tg3 *tp = netdev_priv(dev);
14077 int err;
14078
14079 if (tg3_flag(tp, USE_PHYLIB)) {
14080 struct phy_device *phydev;
14081 if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED))
14082 return -EAGAIN;
14083 phydev = mdiobus_get_phy(bus: tp->mdio_bus, addr: tp->phy_addr);
14084 return phy_mii_ioctl(phydev, ifr, cmd);
14085 }
14086
14087 switch (cmd) {
14088 case SIOCGMIIPHY:
14089 data->phy_id = tp->phy_addr;
14090
14091 fallthrough;
14092 case SIOCGMIIREG: {
14093 u32 mii_regval;
14094
14095 if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES)
14096 break; /* We have no PHY */
14097
14098 if (!netif_running(dev))
14099 return -EAGAIN;
14100
14101 spin_lock_bh(lock: &tp->lock);
14102 err = __tg3_readphy(tp, phy_addr: data->phy_id & 0x1f,
14103 reg: data->reg_num & 0x1f, val: &mii_regval);
14104 spin_unlock_bh(lock: &tp->lock);
14105
14106 data->val_out = mii_regval;
14107
14108 return err;
14109 }
14110
14111 case SIOCSMIIREG:
14112 if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES)
14113 break; /* We have no PHY */
14114
14115 if (!netif_running(dev))
14116 return -EAGAIN;
14117
14118 spin_lock_bh(lock: &tp->lock);
14119 err = __tg3_writephy(tp, phy_addr: data->phy_id & 0x1f,
14120 reg: data->reg_num & 0x1f, val: data->val_in);
14121 spin_unlock_bh(lock: &tp->lock);
14122
14123 return err;
14124
14125 default:
14126 /* do nothing */
14127 break;
14128 }
14129 return -EOPNOTSUPP;
14130}
14131
14132static int tg3_get_coalesce(struct net_device *dev,
14133 struct ethtool_coalesce *ec,
14134 struct kernel_ethtool_coalesce *kernel_coal,
14135 struct netlink_ext_ack *extack)
14136{
14137 struct tg3 *tp = netdev_priv(dev);
14138
14139 memcpy(to: ec, from: &tp->coal, len: sizeof(*ec));
14140 return 0;
14141}
14142
14143static int tg3_set_coalesce(struct net_device *dev,
14144 struct ethtool_coalesce *ec,
14145 struct kernel_ethtool_coalesce *kernel_coal,
14146 struct netlink_ext_ack *extack)
14147{
14148 struct tg3 *tp = netdev_priv(dev);
14149 u32 max_rxcoal_tick_int = 0, max_txcoal_tick_int = 0;
14150 u32 max_stat_coal_ticks = 0, min_stat_coal_ticks = 0;
14151
14152 if (!tg3_flag(tp, 5705_PLUS)) {
14153 max_rxcoal_tick_int = MAX_RXCOAL_TICK_INT;
14154 max_txcoal_tick_int = MAX_TXCOAL_TICK_INT;
14155 max_stat_coal_ticks = MAX_STAT_COAL_TICKS;
14156 min_stat_coal_ticks = MIN_STAT_COAL_TICKS;
14157 }
14158
14159 if ((ec->rx_coalesce_usecs > MAX_RXCOL_TICKS) ||
14160 (!ec->rx_coalesce_usecs) ||
14161 (ec->tx_coalesce_usecs > MAX_TXCOL_TICKS) ||
14162 (!ec->tx_coalesce_usecs) ||
14163 (ec->rx_max_coalesced_frames > MAX_RXMAX_FRAMES) ||
14164 (ec->tx_max_coalesced_frames > MAX_TXMAX_FRAMES) ||
14165 (ec->rx_coalesce_usecs_irq > max_rxcoal_tick_int) ||
14166 (ec->tx_coalesce_usecs_irq > max_txcoal_tick_int) ||
14167 (ec->rx_max_coalesced_frames_irq > MAX_RXCOAL_MAXF_INT) ||
14168 (ec->tx_max_coalesced_frames_irq > MAX_TXCOAL_MAXF_INT) ||
14169 (ec->stats_block_coalesce_usecs > max_stat_coal_ticks) ||
14170 (ec->stats_block_coalesce_usecs < min_stat_coal_ticks))
14171 return -EINVAL;
14172
14173 /* Only copy relevant parameters, ignore all others. */
14174 tp->coal.rx_coalesce_usecs = ec->rx_coalesce_usecs;
14175 tp->coal.tx_coalesce_usecs = ec->tx_coalesce_usecs;
14176 tp->coal.rx_max_coalesced_frames = ec->rx_max_coalesced_frames;
14177 tp->coal.tx_max_coalesced_frames = ec->tx_max_coalesced_frames;
14178 tp->coal.rx_coalesce_usecs_irq = ec->rx_coalesce_usecs_irq;
14179 tp->coal.tx_coalesce_usecs_irq = ec->tx_coalesce_usecs_irq;
14180 tp->coal.rx_max_coalesced_frames_irq = ec->rx_max_coalesced_frames_irq;
14181 tp->coal.tx_max_coalesced_frames_irq = ec->tx_max_coalesced_frames_irq;
14182 tp->coal.stats_block_coalesce_usecs = ec->stats_block_coalesce_usecs;
14183
14184 if (netif_running(dev)) {
14185 tg3_full_lock(tp, irq_sync: 0);
14186 __tg3_set_coalesce(tp, ec: &tp->coal);
14187 tg3_full_unlock(tp);
14188 }
14189 return 0;
14190}
14191
14192static int tg3_set_eee(struct net_device *dev, struct ethtool_keee *edata)
14193{
14194 struct tg3 *tp = netdev_priv(dev);
14195
14196 if (!(tp->phy_flags & TG3_PHYFLG_EEE_CAP)) {
14197 netdev_warn(dev: tp->dev, format: "Board does not support EEE!\n");
14198 return -EOPNOTSUPP;
14199 }
14200
14201 if (!linkmode_equal(src1: edata->advertised, src2: tp->eee.advertised)) {
14202 netdev_warn(dev: tp->dev,
14203 format: "Direct manipulation of EEE advertisement is not supported\n");
14204 return -EINVAL;
14205 }
14206
14207 if (edata->tx_lpi_timer > TG3_CPMU_DBTMR1_LNKIDLE_MAX) {
14208 netdev_warn(dev: tp->dev,
14209 format: "Maximal Tx Lpi timer supported is %#x(u)\n",
14210 TG3_CPMU_DBTMR1_LNKIDLE_MAX);
14211 return -EINVAL;
14212 }
14213
14214 tp->eee.eee_enabled = edata->eee_enabled;
14215 tp->eee.tx_lpi_enabled = edata->tx_lpi_enabled;
14216 tp->eee.tx_lpi_timer = edata->tx_lpi_timer;
14217
14218 tp->phy_flags |= TG3_PHYFLG_USER_CONFIGURED;
14219 tg3_warn_mgmt_link_flap(tp);
14220
14221 if (netif_running(dev: tp->dev)) {
14222 tg3_full_lock(tp, irq_sync: 0);
14223 tg3_setup_eee(tp);
14224 tg3_phy_reset(tp);
14225 tg3_full_unlock(tp);
14226 }
14227
14228 return 0;
14229}
14230
14231static int tg3_get_eee(struct net_device *dev, struct ethtool_keee *edata)
14232{
14233 struct tg3 *tp = netdev_priv(dev);
14234
14235 if (!(tp->phy_flags & TG3_PHYFLG_EEE_CAP)) {
14236 netdev_warn(dev: tp->dev,
14237 format: "Board does not support EEE!\n");
14238 return -EOPNOTSUPP;
14239 }
14240
14241 *edata = tp->eee;
14242 return 0;
14243}
14244
14245static const struct ethtool_ops tg3_ethtool_ops = {
14246 .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
14247 ETHTOOL_COALESCE_MAX_FRAMES |
14248 ETHTOOL_COALESCE_USECS_IRQ |
14249 ETHTOOL_COALESCE_MAX_FRAMES_IRQ |
14250 ETHTOOL_COALESCE_STATS_BLOCK_USECS,
14251 .get_drvinfo = tg3_get_drvinfo,
14252 .get_regs_len = tg3_get_regs_len,
14253 .get_regs = tg3_get_regs,
14254 .get_wol = tg3_get_wol,
14255 .set_wol = tg3_set_wol,
14256 .get_msglevel = tg3_get_msglevel,
14257 .set_msglevel = tg3_set_msglevel,
14258 .nway_reset = tg3_nway_reset,
14259 .get_link = ethtool_op_get_link,
14260 .get_eeprom_len = tg3_get_eeprom_len,
14261 .get_eeprom = tg3_get_eeprom,
14262 .set_eeprom = tg3_set_eeprom,
14263 .get_ringparam = tg3_get_ringparam,
14264 .set_ringparam = tg3_set_ringparam,
14265 .get_pauseparam = tg3_get_pauseparam,
14266 .set_pauseparam = tg3_set_pauseparam,
14267 .self_test = tg3_self_test,
14268 .get_strings = tg3_get_strings,
14269 .set_phys_id = tg3_set_phys_id,
14270 .get_ethtool_stats = tg3_get_ethtool_stats,
14271 .get_coalesce = tg3_get_coalesce,
14272 .set_coalesce = tg3_set_coalesce,
14273 .get_sset_count = tg3_get_sset_count,
14274 .get_rxnfc = tg3_get_rxnfc,
14275 .get_rxfh_indir_size = tg3_get_rxfh_indir_size,
14276 .get_rxfh = tg3_get_rxfh,
14277 .set_rxfh = tg3_set_rxfh,
14278 .get_channels = tg3_get_channels,
14279 .set_channels = tg3_set_channels,
14280 .get_ts_info = tg3_get_ts_info,
14281 .get_eee = tg3_get_eee,
14282 .set_eee = tg3_set_eee,
14283 .get_link_ksettings = tg3_get_link_ksettings,
14284 .set_link_ksettings = tg3_set_link_ksettings,
14285};
14286
14287static void tg3_get_stats64(struct net_device *dev,
14288 struct rtnl_link_stats64 *stats)
14289{
14290 struct tg3 *tp = netdev_priv(dev);
14291
14292 spin_lock_bh(lock: &tp->lock);
14293 if (!tp->hw_stats || !tg3_flag(tp, INIT_COMPLETE)) {
14294 *stats = tp->net_stats_prev;
14295 spin_unlock_bh(lock: &tp->lock);
14296 return;
14297 }
14298
14299 tg3_get_nstats(tp, stats);
14300 spin_unlock_bh(lock: &tp->lock);
14301}
14302
14303static void tg3_set_rx_mode(struct net_device *dev)
14304{
14305 struct tg3 *tp = netdev_priv(dev);
14306
14307 if (!netif_running(dev))
14308 return;
14309
14310 tg3_full_lock(tp, irq_sync: 0);
14311 __tg3_set_rx_mode(dev);
14312 tg3_full_unlock(tp);
14313}
14314
14315static inline void tg3_set_mtu(struct net_device *dev, struct tg3 *tp,
14316 int new_mtu)
14317{
14318 WRITE_ONCE(dev->mtu, new_mtu);
14319
14320 if (new_mtu > ETH_DATA_LEN) {
14321 if (tg3_flag(tp, 5780_CLASS)) {
14322 netdev_update_features(dev);
14323 tg3_flag_clear(tp, TSO_CAPABLE);
14324 } else {
14325 tg3_flag_set(tp, JUMBO_RING_ENABLE);
14326 }
14327 } else {
14328 if (tg3_flag(tp, 5780_CLASS)) {
14329 tg3_flag_set(tp, TSO_CAPABLE);
14330 netdev_update_features(dev);
14331 }
14332 tg3_flag_clear(tp, JUMBO_RING_ENABLE);
14333 }
14334}
14335
14336static int tg3_change_mtu(struct net_device *dev, int new_mtu)
14337{
14338 struct tg3 *tp = netdev_priv(dev);
14339 int err;
14340 bool reset_phy = false;
14341
14342 if (!netif_running(dev)) {
14343 /* We'll just catch it later when the
14344 * device is up'd.
14345 */
14346 tg3_set_mtu(dev, tp, new_mtu);
14347 return 0;
14348 }
14349
14350 tg3_phy_stop(tp);
14351
14352 tg3_netif_stop(tp);
14353
14354 tg3_set_mtu(dev, tp, new_mtu);
14355
14356 netdev_lock(dev);
14357 tg3_full_lock(tp, irq_sync: 1);
14358
14359 tg3_halt(tp, RESET_KIND_SHUTDOWN, silent: 1);
14360
14361 /* Reset PHY, otherwise the read DMA engine will be in a mode that
14362 * breaks all requests to 256 bytes.
14363 */
14364 if (tg3_asic_rev(tp) == ASIC_REV_57766 ||
14365 tg3_asic_rev(tp) == ASIC_REV_5717 ||
14366 tg3_asic_rev(tp) == ASIC_REV_5719 ||
14367 tg3_asic_rev(tp) == ASIC_REV_5720)
14368 reset_phy = true;
14369
14370 err = tg3_restart_hw(tp, reset_phy);
14371
14372 if (!err)
14373 tg3_netif_start(tp);
14374
14375 tg3_full_unlock(tp);
14376 netdev_unlock(dev);
14377
14378 if (!err)
14379 tg3_phy_start(tp);
14380
14381 return err;
14382}
14383
14384static const struct net_device_ops tg3_netdev_ops = {
14385 .ndo_open = tg3_open,
14386 .ndo_stop = tg3_close,
14387 .ndo_start_xmit = tg3_start_xmit,
14388 .ndo_get_stats64 = tg3_get_stats64,
14389 .ndo_validate_addr = eth_validate_addr,
14390 .ndo_set_rx_mode = tg3_set_rx_mode,
14391 .ndo_set_mac_address = tg3_set_mac_addr,
14392 .ndo_eth_ioctl = tg3_ioctl,
14393 .ndo_tx_timeout = tg3_tx_timeout,
14394 .ndo_change_mtu = tg3_change_mtu,
14395 .ndo_fix_features = tg3_fix_features,
14396 .ndo_set_features = tg3_set_features,
14397#ifdef CONFIG_NET_POLL_CONTROLLER
14398 .ndo_poll_controller = tg3_poll_controller,
14399#endif
14400 .ndo_hwtstamp_get = tg3_hwtstamp_get,
14401 .ndo_hwtstamp_set = tg3_hwtstamp_set,
14402};
14403
14404static void tg3_get_eeprom_size(struct tg3 *tp)
14405{
14406 u32 cursize, val, magic;
14407
14408 tp->nvram_size = EEPROM_CHIP_SIZE;
14409
14410 if (tg3_nvram_read(tp, offset: 0, val: &magic) != 0)
14411 return;
14412
14413 if ((magic != TG3_EEPROM_MAGIC) &&
14414 ((magic & TG3_EEPROM_MAGIC_FW_MSK) != TG3_EEPROM_MAGIC_FW) &&
14415 ((magic & TG3_EEPROM_MAGIC_HW_MSK) != TG3_EEPROM_MAGIC_HW))
14416 return;
14417
14418 /*
14419 * Size the chip by reading offsets at increasing powers of two.
14420 * When we encounter our validation signature, we know the addressing
14421 * has wrapped around, and thus have our chip size.
14422 */
14423 cursize = 0x10;
14424
14425 while (cursize < tp->nvram_size) {
14426 if (tg3_nvram_read(tp, offset: cursize, val: &val) != 0)
14427 return;
14428
14429 if (val == magic)
14430 break;
14431
14432 cursize <<= 1;
14433 }
14434
14435 tp->nvram_size = cursize;
14436}
14437
14438static void tg3_get_nvram_size(struct tg3 *tp)
14439{
14440 u32 val;
14441
14442 if (tg3_flag(tp, NO_NVRAM) || tg3_nvram_read(tp, offset: 0, val: &val) != 0)
14443 return;
14444
14445 /* Selfboot format */
14446 if (val != TG3_EEPROM_MAGIC) {
14447 tg3_get_eeprom_size(tp);
14448 return;
14449 }
14450
14451 if (tg3_nvram_read(tp, offset: 0xf0, val: &val) == 0) {
14452 if (val != 0) {
14453 /* This is confusing. We want to operate on the
14454 * 16-bit value at offset 0xf2. The tg3_nvram_read()
14455 * call will read from NVRAM and byteswap the data
14456 * according to the byteswapping settings for all
14457 * other register accesses. This ensures the data we
14458 * want will always reside in the lower 16-bits.
14459 * However, the data in NVRAM is in LE format, which
14460 * means the data from the NVRAM read will always be
14461 * opposite the endianness of the CPU. The 16-bit
14462 * byteswap then brings the data to CPU endianness.
14463 */
14464 tp->nvram_size = swab16((u16)(val & 0x0000ffff)) * 1024;
14465 return;
14466 }
14467 }
14468 tp->nvram_size = TG3_NVRAM_SIZE_512KB;
14469}
14470
14471static void tg3_get_nvram_info(struct tg3 *tp)
14472{
14473 u32 nvcfg1;
14474
14475 nvcfg1 = tr32(NVRAM_CFG1);
14476 if (nvcfg1 & NVRAM_CFG1_FLASHIF_ENAB) {
14477 tg3_flag_set(tp, FLASH);
14478 } else {
14479 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
14480 tw32(NVRAM_CFG1, nvcfg1);
14481 }
14482
14483 if (tg3_asic_rev(tp) == ASIC_REV_5750 ||
14484 tg3_flag(tp, 5780_CLASS)) {
14485 switch (nvcfg1 & NVRAM_CFG1_VENDOR_MASK) {
14486 case FLASH_VENDOR_ATMEL_FLASH_BUFFERED:
14487 tp->nvram_jedecnum = JEDEC_ATMEL;
14488 tp->nvram_pagesize = ATMEL_AT45DB0X1B_PAGE_SIZE;
14489 tg3_flag_set(tp, NVRAM_BUFFERED);
14490 break;
14491 case FLASH_VENDOR_ATMEL_FLASH_UNBUFFERED:
14492 tp->nvram_jedecnum = JEDEC_ATMEL;
14493 tp->nvram_pagesize = ATMEL_AT25F512_PAGE_SIZE;
14494 break;
14495 case FLASH_VENDOR_ATMEL_EEPROM:
14496 tp->nvram_jedecnum = JEDEC_ATMEL;
14497 tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
14498 tg3_flag_set(tp, NVRAM_BUFFERED);
14499 break;
14500 case FLASH_VENDOR_ST:
14501 tp->nvram_jedecnum = JEDEC_ST;
14502 tp->nvram_pagesize = ST_M45PEX0_PAGE_SIZE;
14503 tg3_flag_set(tp, NVRAM_BUFFERED);
14504 break;
14505 case FLASH_VENDOR_SAIFUN:
14506 tp->nvram_jedecnum = JEDEC_SAIFUN;
14507 tp->nvram_pagesize = SAIFUN_SA25F0XX_PAGE_SIZE;
14508 break;
14509 case FLASH_VENDOR_SST_SMALL:
14510 case FLASH_VENDOR_SST_LARGE:
14511 tp->nvram_jedecnum = JEDEC_SST;
14512 tp->nvram_pagesize = SST_25VF0X0_PAGE_SIZE;
14513 break;
14514 }
14515 } else {
14516 tp->nvram_jedecnum = JEDEC_ATMEL;
14517 tp->nvram_pagesize = ATMEL_AT45DB0X1B_PAGE_SIZE;
14518 tg3_flag_set(tp, NVRAM_BUFFERED);
14519 }
14520}
14521
14522static void tg3_nvram_get_pagesize(struct tg3 *tp, u32 nvmcfg1)
14523{
14524 switch (nvmcfg1 & NVRAM_CFG1_5752PAGE_SIZE_MASK) {
14525 case FLASH_5752PAGE_SIZE_256:
14526 tp->nvram_pagesize = 256;
14527 break;
14528 case FLASH_5752PAGE_SIZE_512:
14529 tp->nvram_pagesize = 512;
14530 break;
14531 case FLASH_5752PAGE_SIZE_1K:
14532 tp->nvram_pagesize = 1024;
14533 break;
14534 case FLASH_5752PAGE_SIZE_2K:
14535 tp->nvram_pagesize = 2048;
14536 break;
14537 case FLASH_5752PAGE_SIZE_4K:
14538 tp->nvram_pagesize = 4096;
14539 break;
14540 case FLASH_5752PAGE_SIZE_264:
14541 tp->nvram_pagesize = 264;
14542 break;
14543 case FLASH_5752PAGE_SIZE_528:
14544 tp->nvram_pagesize = 528;
14545 break;
14546 }
14547}
14548
14549static void tg3_get_5752_nvram_info(struct tg3 *tp)
14550{
14551 u32 nvcfg1;
14552
14553 nvcfg1 = tr32(NVRAM_CFG1);
14554
14555 /* NVRAM protection for TPM */
14556 if (nvcfg1 & (1 << 27))
14557 tg3_flag_set(tp, PROTECTED_NVRAM);
14558
14559 switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
14560 case FLASH_5752VENDOR_ATMEL_EEPROM_64KHZ:
14561 case FLASH_5752VENDOR_ATMEL_EEPROM_376KHZ:
14562 tp->nvram_jedecnum = JEDEC_ATMEL;
14563 tg3_flag_set(tp, NVRAM_BUFFERED);
14564 break;
14565 case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
14566 tp->nvram_jedecnum = JEDEC_ATMEL;
14567 tg3_flag_set(tp, NVRAM_BUFFERED);
14568 tg3_flag_set(tp, FLASH);
14569 break;
14570 case FLASH_5752VENDOR_ST_M45PE10:
14571 case FLASH_5752VENDOR_ST_M45PE20:
14572 case FLASH_5752VENDOR_ST_M45PE40:
14573 tp->nvram_jedecnum = JEDEC_ST;
14574 tg3_flag_set(tp, NVRAM_BUFFERED);
14575 tg3_flag_set(tp, FLASH);
14576 break;
14577 }
14578
14579 if (tg3_flag(tp, FLASH)) {
14580 tg3_nvram_get_pagesize(tp, nvmcfg1: nvcfg1);
14581 } else {
14582 /* For eeprom, set pagesize to maximum eeprom size */
14583 tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
14584
14585 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
14586 tw32(NVRAM_CFG1, nvcfg1);
14587 }
14588}
14589
14590static void tg3_get_5755_nvram_info(struct tg3 *tp)
14591{
14592 u32 nvcfg1, protect = 0;
14593
14594 nvcfg1 = tr32(NVRAM_CFG1);
14595
14596 /* NVRAM protection for TPM */
14597 if (nvcfg1 & (1 << 27)) {
14598 tg3_flag_set(tp, PROTECTED_NVRAM);
14599 protect = 1;
14600 }
14601
14602 nvcfg1 &= NVRAM_CFG1_5752VENDOR_MASK;
14603 switch (nvcfg1) {
14604 case FLASH_5755VENDOR_ATMEL_FLASH_1:
14605 case FLASH_5755VENDOR_ATMEL_FLASH_2:
14606 case FLASH_5755VENDOR_ATMEL_FLASH_3:
14607 case FLASH_5755VENDOR_ATMEL_FLASH_5:
14608 tp->nvram_jedecnum = JEDEC_ATMEL;
14609 tg3_flag_set(tp, NVRAM_BUFFERED);
14610 tg3_flag_set(tp, FLASH);
14611 tp->nvram_pagesize = 264;
14612 if (nvcfg1 == FLASH_5755VENDOR_ATMEL_FLASH_1 ||
14613 nvcfg1 == FLASH_5755VENDOR_ATMEL_FLASH_5)
14614 tp->nvram_size = (protect ? 0x3e200 :
14615 TG3_NVRAM_SIZE_512KB);
14616 else if (nvcfg1 == FLASH_5755VENDOR_ATMEL_FLASH_2)
14617 tp->nvram_size = (protect ? 0x1f200 :
14618 TG3_NVRAM_SIZE_256KB);
14619 else
14620 tp->nvram_size = (protect ? 0x1f200 :
14621 TG3_NVRAM_SIZE_128KB);
14622 break;
14623 case FLASH_5752VENDOR_ST_M45PE10:
14624 case FLASH_5752VENDOR_ST_M45PE20:
14625 case FLASH_5752VENDOR_ST_M45PE40:
14626 tp->nvram_jedecnum = JEDEC_ST;
14627 tg3_flag_set(tp, NVRAM_BUFFERED);
14628 tg3_flag_set(tp, FLASH);
14629 tp->nvram_pagesize = 256;
14630 if (nvcfg1 == FLASH_5752VENDOR_ST_M45PE10)
14631 tp->nvram_size = (protect ?
14632 TG3_NVRAM_SIZE_64KB :
14633 TG3_NVRAM_SIZE_128KB);
14634 else if (nvcfg1 == FLASH_5752VENDOR_ST_M45PE20)
14635 tp->nvram_size = (protect ?
14636 TG3_NVRAM_SIZE_64KB :
14637 TG3_NVRAM_SIZE_256KB);
14638 else
14639 tp->nvram_size = (protect ?
14640 TG3_NVRAM_SIZE_128KB :
14641 TG3_NVRAM_SIZE_512KB);
14642 break;
14643 }
14644}
14645
14646static void tg3_get_5787_nvram_info(struct tg3 *tp)
14647{
14648 u32 nvcfg1;
14649
14650 nvcfg1 = tr32(NVRAM_CFG1);
14651
14652 switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
14653 case FLASH_5787VENDOR_ATMEL_EEPROM_64KHZ:
14654 case FLASH_5787VENDOR_ATMEL_EEPROM_376KHZ:
14655 case FLASH_5787VENDOR_MICRO_EEPROM_64KHZ:
14656 case FLASH_5787VENDOR_MICRO_EEPROM_376KHZ:
14657 tp->nvram_jedecnum = JEDEC_ATMEL;
14658 tg3_flag_set(tp, NVRAM_BUFFERED);
14659 tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
14660
14661 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
14662 tw32(NVRAM_CFG1, nvcfg1);
14663 break;
14664 case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
14665 case FLASH_5755VENDOR_ATMEL_FLASH_1:
14666 case FLASH_5755VENDOR_ATMEL_FLASH_2:
14667 case FLASH_5755VENDOR_ATMEL_FLASH_3:
14668 tp->nvram_jedecnum = JEDEC_ATMEL;
14669 tg3_flag_set(tp, NVRAM_BUFFERED);
14670 tg3_flag_set(tp, FLASH);
14671 tp->nvram_pagesize = 264;
14672 break;
14673 case FLASH_5752VENDOR_ST_M45PE10:
14674 case FLASH_5752VENDOR_ST_M45PE20:
14675 case FLASH_5752VENDOR_ST_M45PE40:
14676 tp->nvram_jedecnum = JEDEC_ST;
14677 tg3_flag_set(tp, NVRAM_BUFFERED);
14678 tg3_flag_set(tp, FLASH);
14679 tp->nvram_pagesize = 256;
14680 break;
14681 }
14682}
14683
14684static void tg3_get_5761_nvram_info(struct tg3 *tp)
14685{
14686 u32 nvcfg1, protect = 0;
14687
14688 nvcfg1 = tr32(NVRAM_CFG1);
14689
14690 /* NVRAM protection for TPM */
14691 if (nvcfg1 & (1 << 27)) {
14692 tg3_flag_set(tp, PROTECTED_NVRAM);
14693 protect = 1;
14694 }
14695
14696 nvcfg1 &= NVRAM_CFG1_5752VENDOR_MASK;
14697 switch (nvcfg1) {
14698 case FLASH_5761VENDOR_ATMEL_ADB021D:
14699 case FLASH_5761VENDOR_ATMEL_ADB041D:
14700 case FLASH_5761VENDOR_ATMEL_ADB081D:
14701 case FLASH_5761VENDOR_ATMEL_ADB161D:
14702 case FLASH_5761VENDOR_ATMEL_MDB021D:
14703 case FLASH_5761VENDOR_ATMEL_MDB041D:
14704 case FLASH_5761VENDOR_ATMEL_MDB081D:
14705 case FLASH_5761VENDOR_ATMEL_MDB161D:
14706 tp->nvram_jedecnum = JEDEC_ATMEL;
14707 tg3_flag_set(tp, NVRAM_BUFFERED);
14708 tg3_flag_set(tp, FLASH);
14709 tg3_flag_set(tp, NO_NVRAM_ADDR_TRANS);
14710 tp->nvram_pagesize = 256;
14711 break;
14712 case FLASH_5761VENDOR_ST_A_M45PE20:
14713 case FLASH_5761VENDOR_ST_A_M45PE40:
14714 case FLASH_5761VENDOR_ST_A_M45PE80:
14715 case FLASH_5761VENDOR_ST_A_M45PE16:
14716 case FLASH_5761VENDOR_ST_M_M45PE20:
14717 case FLASH_5761VENDOR_ST_M_M45PE40:
14718 case FLASH_5761VENDOR_ST_M_M45PE80:
14719 case FLASH_5761VENDOR_ST_M_M45PE16:
14720 tp->nvram_jedecnum = JEDEC_ST;
14721 tg3_flag_set(tp, NVRAM_BUFFERED);
14722 tg3_flag_set(tp, FLASH);
14723 tp->nvram_pagesize = 256;
14724 break;
14725 }
14726
14727 if (protect) {
14728 tp->nvram_size = tr32(NVRAM_ADDR_LOCKOUT);
14729 } else {
14730 switch (nvcfg1) {
14731 case FLASH_5761VENDOR_ATMEL_ADB161D:
14732 case FLASH_5761VENDOR_ATMEL_MDB161D:
14733 case FLASH_5761VENDOR_ST_A_M45PE16:
14734 case FLASH_5761VENDOR_ST_M_M45PE16:
14735 tp->nvram_size = TG3_NVRAM_SIZE_2MB;
14736 break;
14737 case FLASH_5761VENDOR_ATMEL_ADB081D:
14738 case FLASH_5761VENDOR_ATMEL_MDB081D:
14739 case FLASH_5761VENDOR_ST_A_M45PE80:
14740 case FLASH_5761VENDOR_ST_M_M45PE80:
14741 tp->nvram_size = TG3_NVRAM_SIZE_1MB;
14742 break;
14743 case FLASH_5761VENDOR_ATMEL_ADB041D:
14744 case FLASH_5761VENDOR_ATMEL_MDB041D:
14745 case FLASH_5761VENDOR_ST_A_M45PE40:
14746 case FLASH_5761VENDOR_ST_M_M45PE40:
14747 tp->nvram_size = TG3_NVRAM_SIZE_512KB;
14748 break;
14749 case FLASH_5761VENDOR_ATMEL_ADB021D:
14750 case FLASH_5761VENDOR_ATMEL_MDB021D:
14751 case FLASH_5761VENDOR_ST_A_M45PE20:
14752 case FLASH_5761VENDOR_ST_M_M45PE20:
14753 tp->nvram_size = TG3_NVRAM_SIZE_256KB;
14754 break;
14755 }
14756 }
14757}
14758
14759static void tg3_get_5906_nvram_info(struct tg3 *tp)
14760{
14761 tp->nvram_jedecnum = JEDEC_ATMEL;
14762 tg3_flag_set(tp, NVRAM_BUFFERED);
14763 tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
14764}
14765
14766static void tg3_get_57780_nvram_info(struct tg3 *tp)
14767{
14768 u32 nvcfg1;
14769
14770 nvcfg1 = tr32(NVRAM_CFG1);
14771
14772 switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
14773 case FLASH_5787VENDOR_ATMEL_EEPROM_376KHZ:
14774 case FLASH_5787VENDOR_MICRO_EEPROM_376KHZ:
14775 tp->nvram_jedecnum = JEDEC_ATMEL;
14776 tg3_flag_set(tp, NVRAM_BUFFERED);
14777 tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
14778
14779 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
14780 tw32(NVRAM_CFG1, nvcfg1);
14781 return;
14782 case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
14783 case FLASH_57780VENDOR_ATMEL_AT45DB011D:
14784 case FLASH_57780VENDOR_ATMEL_AT45DB011B:
14785 case FLASH_57780VENDOR_ATMEL_AT45DB021D:
14786 case FLASH_57780VENDOR_ATMEL_AT45DB021B:
14787 case FLASH_57780VENDOR_ATMEL_AT45DB041D:
14788 case FLASH_57780VENDOR_ATMEL_AT45DB041B:
14789 tp->nvram_jedecnum = JEDEC_ATMEL;
14790 tg3_flag_set(tp, NVRAM_BUFFERED);
14791 tg3_flag_set(tp, FLASH);
14792
14793 switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
14794 case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
14795 case FLASH_57780VENDOR_ATMEL_AT45DB011D:
14796 case FLASH_57780VENDOR_ATMEL_AT45DB011B:
14797 tp->nvram_size = TG3_NVRAM_SIZE_128KB;
14798 break;
14799 case FLASH_57780VENDOR_ATMEL_AT45DB021D:
14800 case FLASH_57780VENDOR_ATMEL_AT45DB021B:
14801 tp->nvram_size = TG3_NVRAM_SIZE_256KB;
14802 break;
14803 case FLASH_57780VENDOR_ATMEL_AT45DB041D:
14804 case FLASH_57780VENDOR_ATMEL_AT45DB041B:
14805 tp->nvram_size = TG3_NVRAM_SIZE_512KB;
14806 break;
14807 }
14808 break;
14809 case FLASH_5752VENDOR_ST_M45PE10:
14810 case FLASH_5752VENDOR_ST_M45PE20:
14811 case FLASH_5752VENDOR_ST_M45PE40:
14812 tp->nvram_jedecnum = JEDEC_ST;
14813 tg3_flag_set(tp, NVRAM_BUFFERED);
14814 tg3_flag_set(tp, FLASH);
14815
14816 switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
14817 case FLASH_5752VENDOR_ST_M45PE10:
14818 tp->nvram_size = TG3_NVRAM_SIZE_128KB;
14819 break;
14820 case FLASH_5752VENDOR_ST_M45PE20:
14821 tp->nvram_size = TG3_NVRAM_SIZE_256KB;
14822 break;
14823 case FLASH_5752VENDOR_ST_M45PE40:
14824 tp->nvram_size = TG3_NVRAM_SIZE_512KB;
14825 break;
14826 }
14827 break;
14828 default:
14829 tg3_flag_set(tp, NO_NVRAM);
14830 return;
14831 }
14832
14833 tg3_nvram_get_pagesize(tp, nvmcfg1: nvcfg1);
14834 if (tp->nvram_pagesize != 264 && tp->nvram_pagesize != 528)
14835 tg3_flag_set(tp, NO_NVRAM_ADDR_TRANS);
14836}
14837
14838
14839static void tg3_get_5717_nvram_info(struct tg3 *tp)
14840{
14841 u32 nvcfg1;
14842
14843 nvcfg1 = tr32(NVRAM_CFG1);
14844
14845 switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
14846 case FLASH_5717VENDOR_ATMEL_EEPROM:
14847 case FLASH_5717VENDOR_MICRO_EEPROM:
14848 tp->nvram_jedecnum = JEDEC_ATMEL;
14849 tg3_flag_set(tp, NVRAM_BUFFERED);
14850 tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
14851
14852 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
14853 tw32(NVRAM_CFG1, nvcfg1);
14854 return;
14855 case FLASH_5717VENDOR_ATMEL_MDB011D:
14856 case FLASH_5717VENDOR_ATMEL_ADB011B:
14857 case FLASH_5717VENDOR_ATMEL_ADB011D:
14858 case FLASH_5717VENDOR_ATMEL_MDB021D:
14859 case FLASH_5717VENDOR_ATMEL_ADB021B:
14860 case FLASH_5717VENDOR_ATMEL_ADB021D:
14861 case FLASH_5717VENDOR_ATMEL_45USPT:
14862 tp->nvram_jedecnum = JEDEC_ATMEL;
14863 tg3_flag_set(tp, NVRAM_BUFFERED);
14864 tg3_flag_set(tp, FLASH);
14865
14866 switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
14867 case FLASH_5717VENDOR_ATMEL_MDB021D:
14868 /* Detect size with tg3_nvram_get_size() */
14869 break;
14870 case FLASH_5717VENDOR_ATMEL_ADB021B:
14871 case FLASH_5717VENDOR_ATMEL_ADB021D:
14872 tp->nvram_size = TG3_NVRAM_SIZE_256KB;
14873 break;
14874 default:
14875 tp->nvram_size = TG3_NVRAM_SIZE_128KB;
14876 break;
14877 }
14878 break;
14879 case FLASH_5717VENDOR_ST_M_M25PE10:
14880 case FLASH_5717VENDOR_ST_A_M25PE10:
14881 case FLASH_5717VENDOR_ST_M_M45PE10:
14882 case FLASH_5717VENDOR_ST_A_M45PE10:
14883 case FLASH_5717VENDOR_ST_M_M25PE20:
14884 case FLASH_5717VENDOR_ST_A_M25PE20:
14885 case FLASH_5717VENDOR_ST_M_M45PE20:
14886 case FLASH_5717VENDOR_ST_A_M45PE20:
14887 case FLASH_5717VENDOR_ST_25USPT:
14888 case FLASH_5717VENDOR_ST_45USPT:
14889 tp->nvram_jedecnum = JEDEC_ST;
14890 tg3_flag_set(tp, NVRAM_BUFFERED);
14891 tg3_flag_set(tp, FLASH);
14892
14893 switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
14894 case FLASH_5717VENDOR_ST_M_M25PE20:
14895 case FLASH_5717VENDOR_ST_M_M45PE20:
14896 /* Detect size with tg3_nvram_get_size() */
14897 break;
14898 case FLASH_5717VENDOR_ST_A_M25PE20:
14899 case FLASH_5717VENDOR_ST_A_M45PE20:
14900 tp->nvram_size = TG3_NVRAM_SIZE_256KB;
14901 break;
14902 default:
14903 tp->nvram_size = TG3_NVRAM_SIZE_128KB;
14904 break;
14905 }
14906 break;
14907 default:
14908 tg3_flag_set(tp, NO_NVRAM);
14909 return;
14910 }
14911
14912 tg3_nvram_get_pagesize(tp, nvmcfg1: nvcfg1);
14913 if (tp->nvram_pagesize != 264 && tp->nvram_pagesize != 528)
14914 tg3_flag_set(tp, NO_NVRAM_ADDR_TRANS);
14915}
14916
14917static void tg3_get_5720_nvram_info(struct tg3 *tp)
14918{
14919 u32 nvcfg1, nvmpinstrp, nv_status;
14920
14921 nvcfg1 = tr32(NVRAM_CFG1);
14922 nvmpinstrp = nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK;
14923
14924 if (tg3_asic_rev(tp) == ASIC_REV_5762) {
14925 if (!(nvcfg1 & NVRAM_CFG1_5762VENDOR_MASK)) {
14926 tg3_flag_set(tp, NO_NVRAM);
14927 return;
14928 }
14929
14930 switch (nvmpinstrp) {
14931 case FLASH_5762_MX25L_100:
14932 case FLASH_5762_MX25L_200:
14933 case FLASH_5762_MX25L_400:
14934 case FLASH_5762_MX25L_800:
14935 case FLASH_5762_MX25L_160_320:
14936 tp->nvram_pagesize = 4096;
14937 tp->nvram_jedecnum = JEDEC_MACRONIX;
14938 tg3_flag_set(tp, NVRAM_BUFFERED);
14939 tg3_flag_set(tp, NO_NVRAM_ADDR_TRANS);
14940 tg3_flag_set(tp, FLASH);
14941 nv_status = tr32(NVRAM_AUTOSENSE_STATUS);
14942 tp->nvram_size =
14943 (1 << (nv_status >> AUTOSENSE_DEVID &
14944 AUTOSENSE_DEVID_MASK)
14945 << AUTOSENSE_SIZE_IN_MB);
14946 return;
14947
14948 case FLASH_5762_EEPROM_HD:
14949 nvmpinstrp = FLASH_5720_EEPROM_HD;
14950 break;
14951 case FLASH_5762_EEPROM_LD:
14952 nvmpinstrp = FLASH_5720_EEPROM_LD;
14953 break;
14954 case FLASH_5720VENDOR_M_ST_M45PE20:
14955 /* This pinstrap supports multiple sizes, so force it
14956 * to read the actual size from location 0xf0.
14957 */
14958 nvmpinstrp = FLASH_5720VENDOR_ST_45USPT;
14959 break;
14960 }
14961 }
14962
14963 switch (nvmpinstrp) {
14964 case FLASH_5720_EEPROM_HD:
14965 case FLASH_5720_EEPROM_LD:
14966 tp->nvram_jedecnum = JEDEC_ATMEL;
14967 tg3_flag_set(tp, NVRAM_BUFFERED);
14968
14969 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
14970 tw32(NVRAM_CFG1, nvcfg1);
14971 if (nvmpinstrp == FLASH_5720_EEPROM_HD)
14972 tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
14973 else
14974 tp->nvram_pagesize = ATMEL_AT24C02_CHIP_SIZE;
14975 return;
14976 case FLASH_5720VENDOR_M_ATMEL_DB011D:
14977 case FLASH_5720VENDOR_A_ATMEL_DB011B:
14978 case FLASH_5720VENDOR_A_ATMEL_DB011D:
14979 case FLASH_5720VENDOR_M_ATMEL_DB021D:
14980 case FLASH_5720VENDOR_A_ATMEL_DB021B:
14981 case FLASH_5720VENDOR_A_ATMEL_DB021D:
14982 case FLASH_5720VENDOR_M_ATMEL_DB041D:
14983 case FLASH_5720VENDOR_A_ATMEL_DB041B:
14984 case FLASH_5720VENDOR_A_ATMEL_DB041D:
14985 case FLASH_5720VENDOR_M_ATMEL_DB081D:
14986 case FLASH_5720VENDOR_A_ATMEL_DB081D:
14987 case FLASH_5720VENDOR_ATMEL_45USPT:
14988 tp->nvram_jedecnum = JEDEC_ATMEL;
14989 tg3_flag_set(tp, NVRAM_BUFFERED);
14990 tg3_flag_set(tp, FLASH);
14991
14992 switch (nvmpinstrp) {
14993 case FLASH_5720VENDOR_M_ATMEL_DB021D:
14994 case FLASH_5720VENDOR_A_ATMEL_DB021B:
14995 case FLASH_5720VENDOR_A_ATMEL_DB021D:
14996 tp->nvram_size = TG3_NVRAM_SIZE_256KB;
14997 break;
14998 case FLASH_5720VENDOR_M_ATMEL_DB041D:
14999 case FLASH_5720VENDOR_A_ATMEL_DB041B:
15000 case FLASH_5720VENDOR_A_ATMEL_DB041D:
15001 tp->nvram_size = TG3_NVRAM_SIZE_512KB;
15002 break;
15003 case FLASH_5720VENDOR_M_ATMEL_DB081D:
15004 case FLASH_5720VENDOR_A_ATMEL_DB081D:
15005 tp->nvram_size = TG3_NVRAM_SIZE_1MB;
15006 break;
15007 default:
15008 if (tg3_asic_rev(tp) != ASIC_REV_5762)
15009 tp->nvram_size = TG3_NVRAM_SIZE_128KB;
15010 break;
15011 }
15012 break;
15013 case FLASH_5720VENDOR_M_ST_M25PE10:
15014 case FLASH_5720VENDOR_M_ST_M45PE10:
15015 case FLASH_5720VENDOR_A_ST_M25PE10:
15016 case FLASH_5720VENDOR_A_ST_M45PE10:
15017 case FLASH_5720VENDOR_M_ST_M25PE20:
15018 case FLASH_5720VENDOR_M_ST_M45PE20:
15019 case FLASH_5720VENDOR_A_ST_M25PE20:
15020 case FLASH_5720VENDOR_A_ST_M45PE20:
15021 case FLASH_5720VENDOR_M_ST_M25PE40:
15022 case FLASH_5720VENDOR_M_ST_M45PE40:
15023 case FLASH_5720VENDOR_A_ST_M25PE40:
15024 case FLASH_5720VENDOR_A_ST_M45PE40:
15025 case FLASH_5720VENDOR_M_ST_M25PE80:
15026 case FLASH_5720VENDOR_M_ST_M45PE80:
15027 case FLASH_5720VENDOR_A_ST_M25PE80:
15028 case FLASH_5720VENDOR_A_ST_M45PE80:
15029 case FLASH_5720VENDOR_ST_25USPT:
15030 case FLASH_5720VENDOR_ST_45USPT:
15031 tp->nvram_jedecnum = JEDEC_ST;
15032 tg3_flag_set(tp, NVRAM_BUFFERED);
15033 tg3_flag_set(tp, FLASH);
15034
15035 switch (nvmpinstrp) {
15036 case FLASH_5720VENDOR_M_ST_M25PE20:
15037 case FLASH_5720VENDOR_M_ST_M45PE20:
15038 case FLASH_5720VENDOR_A_ST_M25PE20:
15039 case FLASH_5720VENDOR_A_ST_M45PE20:
15040 tp->nvram_size = TG3_NVRAM_SIZE_256KB;
15041 break;
15042 case FLASH_5720VENDOR_M_ST_M25PE40:
15043 case FLASH_5720VENDOR_M_ST_M45PE40:
15044 case FLASH_5720VENDOR_A_ST_M25PE40:
15045 case FLASH_5720VENDOR_A_ST_M45PE40:
15046 tp->nvram_size = TG3_NVRAM_SIZE_512KB;
15047 break;
15048 case FLASH_5720VENDOR_M_ST_M25PE80:
15049 case FLASH_5720VENDOR_M_ST_M45PE80:
15050 case FLASH_5720VENDOR_A_ST_M25PE80:
15051 case FLASH_5720VENDOR_A_ST_M45PE80:
15052 tp->nvram_size = TG3_NVRAM_SIZE_1MB;
15053 break;
15054 default:
15055 if (tg3_asic_rev(tp) != ASIC_REV_5762)
15056 tp->nvram_size = TG3_NVRAM_SIZE_128KB;
15057 break;
15058 }
15059 break;
15060 default:
15061 tg3_flag_set(tp, NO_NVRAM);
15062 return;
15063 }
15064
15065 tg3_nvram_get_pagesize(tp, nvmcfg1: nvcfg1);
15066 if (tp->nvram_pagesize != 264 && tp->nvram_pagesize != 528)
15067 tg3_flag_set(tp, NO_NVRAM_ADDR_TRANS);
15068
15069 if (tg3_asic_rev(tp) == ASIC_REV_5762) {
15070 u32 val;
15071
15072 if (tg3_nvram_read(tp, offset: 0, val: &val))
15073 return;
15074
15075 if (val != TG3_EEPROM_MAGIC &&
15076 (val & TG3_EEPROM_MAGIC_FW_MSK) != TG3_EEPROM_MAGIC_FW)
15077 tg3_flag_set(tp, NO_NVRAM);
15078 }
15079}
15080
15081/* Chips other than 5700/5701 use the NVRAM for fetching info. */
15082static void tg3_nvram_init(struct tg3 *tp)
15083{
15084 if (tg3_flag(tp, IS_SSB_CORE)) {
15085 /* No NVRAM and EEPROM on the SSB Broadcom GigE core. */
15086 tg3_flag_clear(tp, NVRAM);
15087 tg3_flag_clear(tp, NVRAM_BUFFERED);
15088 tg3_flag_set(tp, NO_NVRAM);
15089 return;
15090 }
15091
15092 tw32_f(GRC_EEPROM_ADDR,
15093 (EEPROM_ADDR_FSM_RESET |
15094 (EEPROM_DEFAULT_CLOCK_PERIOD <<
15095 EEPROM_ADDR_CLKPERD_SHIFT)));
15096
15097 msleep(msecs: 1);
15098
15099 /* Enable seeprom accesses. */
15100 tw32_f(GRC_LOCAL_CTRL,
15101 tr32(GRC_LOCAL_CTRL) | GRC_LCLCTRL_AUTO_SEEPROM);
15102 udelay(usec: 100);
15103
15104 if (tg3_asic_rev(tp) != ASIC_REV_5700 &&
15105 tg3_asic_rev(tp) != ASIC_REV_5701) {
15106 tg3_flag_set(tp, NVRAM);
15107
15108 if (tg3_nvram_lock(tp)) {
15109 netdev_warn(dev: tp->dev,
15110 format: "Cannot get nvram lock, %s failed\n",
15111 __func__);
15112 return;
15113 }
15114 tg3_enable_nvram_access(tp);
15115
15116 tp->nvram_size = 0;
15117
15118 if (tg3_asic_rev(tp) == ASIC_REV_5752)
15119 tg3_get_5752_nvram_info(tp);
15120 else if (tg3_asic_rev(tp) == ASIC_REV_5755)
15121 tg3_get_5755_nvram_info(tp);
15122 else if (tg3_asic_rev(tp) == ASIC_REV_5787 ||
15123 tg3_asic_rev(tp) == ASIC_REV_5784 ||
15124 tg3_asic_rev(tp) == ASIC_REV_5785)
15125 tg3_get_5787_nvram_info(tp);
15126 else if (tg3_asic_rev(tp) == ASIC_REV_5761)
15127 tg3_get_5761_nvram_info(tp);
15128 else if (tg3_asic_rev(tp) == ASIC_REV_5906)
15129 tg3_get_5906_nvram_info(tp);
15130 else if (tg3_asic_rev(tp) == ASIC_REV_57780 ||
15131 tg3_flag(tp, 57765_CLASS))
15132 tg3_get_57780_nvram_info(tp);
15133 else if (tg3_asic_rev(tp) == ASIC_REV_5717 ||
15134 tg3_asic_rev(tp) == ASIC_REV_5719)
15135 tg3_get_5717_nvram_info(tp);
15136 else if (tg3_asic_rev(tp) == ASIC_REV_5720 ||
15137 tg3_asic_rev(tp) == ASIC_REV_5762)
15138 tg3_get_5720_nvram_info(tp);
15139 else
15140 tg3_get_nvram_info(tp);
15141
15142 if (tp->nvram_size == 0)
15143 tg3_get_nvram_size(tp);
15144
15145 tg3_disable_nvram_access(tp);
15146 tg3_nvram_unlock(tp);
15147
15148 } else {
15149 tg3_flag_clear(tp, NVRAM);
15150 tg3_flag_clear(tp, NVRAM_BUFFERED);
15151
15152 tg3_get_eeprom_size(tp);
15153 }
15154}
15155
15156struct subsys_tbl_ent {
15157 u16 subsys_vendor, subsys_devid;
15158 u32 phy_id;
15159};
15160
15161static struct subsys_tbl_ent subsys_id_to_phy_id[] = {
15162 /* Broadcom boards. */
15163 { TG3PCI_SUBVENDOR_ID_BROADCOM,
15164 TG3PCI_SUBDEVICE_ID_BROADCOM_95700A6, TG3_PHY_ID_BCM5401 },
15165 { TG3PCI_SUBVENDOR_ID_BROADCOM,
15166 TG3PCI_SUBDEVICE_ID_BROADCOM_95701A5, TG3_PHY_ID_BCM5701 },
15167 { TG3PCI_SUBVENDOR_ID_BROADCOM,
15168 TG3PCI_SUBDEVICE_ID_BROADCOM_95700T6, TG3_PHY_ID_BCM8002 },
15169 { TG3PCI_SUBVENDOR_ID_BROADCOM,
15170 TG3PCI_SUBDEVICE_ID_BROADCOM_95700A9, 0 },
15171 { TG3PCI_SUBVENDOR_ID_BROADCOM,
15172 TG3PCI_SUBDEVICE_ID_BROADCOM_95701T1, TG3_PHY_ID_BCM5701 },
15173 { TG3PCI_SUBVENDOR_ID_BROADCOM,
15174 TG3PCI_SUBDEVICE_ID_BROADCOM_95701T8, TG3_PHY_ID_BCM5701 },
15175 { TG3PCI_SUBVENDOR_ID_BROADCOM,
15176 TG3PCI_SUBDEVICE_ID_BROADCOM_95701A7, 0 },
15177 { TG3PCI_SUBVENDOR_ID_BROADCOM,
15178 TG3PCI_SUBDEVICE_ID_BROADCOM_95701A10, TG3_PHY_ID_BCM5701 },
15179 { TG3PCI_SUBVENDOR_ID_BROADCOM,
15180 TG3PCI_SUBDEVICE_ID_BROADCOM_95701A12, TG3_PHY_ID_BCM5701 },
15181 { TG3PCI_SUBVENDOR_ID_BROADCOM,
15182 TG3PCI_SUBDEVICE_ID_BROADCOM_95703AX1, TG3_PHY_ID_BCM5703 },
15183 { TG3PCI_SUBVENDOR_ID_BROADCOM,
15184 TG3PCI_SUBDEVICE_ID_BROADCOM_95703AX2, TG3_PHY_ID_BCM5703 },
15185
15186 /* 3com boards. */
15187 { TG3PCI_SUBVENDOR_ID_3COM,
15188 TG3PCI_SUBDEVICE_ID_3COM_3C996T, TG3_PHY_ID_BCM5401 },
15189 { TG3PCI_SUBVENDOR_ID_3COM,
15190 TG3PCI_SUBDEVICE_ID_3COM_3C996BT, TG3_PHY_ID_BCM5701 },
15191 { TG3PCI_SUBVENDOR_ID_3COM,
15192 TG3PCI_SUBDEVICE_ID_3COM_3C996SX, 0 },
15193 { TG3PCI_SUBVENDOR_ID_3COM,
15194 TG3PCI_SUBDEVICE_ID_3COM_3C1000T, TG3_PHY_ID_BCM5701 },
15195 { TG3PCI_SUBVENDOR_ID_3COM,
15196 TG3PCI_SUBDEVICE_ID_3COM_3C940BR01, TG3_PHY_ID_BCM5701 },
15197
15198 /* DELL boards. */
15199 { TG3PCI_SUBVENDOR_ID_DELL,
15200 TG3PCI_SUBDEVICE_ID_DELL_VIPER, TG3_PHY_ID_BCM5401 },
15201 { TG3PCI_SUBVENDOR_ID_DELL,
15202 TG3PCI_SUBDEVICE_ID_DELL_JAGUAR, TG3_PHY_ID_BCM5401 },
15203 { TG3PCI_SUBVENDOR_ID_DELL,
15204 TG3PCI_SUBDEVICE_ID_DELL_MERLOT, TG3_PHY_ID_BCM5411 },
15205 { TG3PCI_SUBVENDOR_ID_DELL,
15206 TG3PCI_SUBDEVICE_ID_DELL_SLIM_MERLOT, TG3_PHY_ID_BCM5411 },
15207
15208 /* Compaq boards. */
15209 { TG3PCI_SUBVENDOR_ID_COMPAQ,
15210 TG3PCI_SUBDEVICE_ID_COMPAQ_BANSHEE, TG3_PHY_ID_BCM5701 },
15211 { TG3PCI_SUBVENDOR_ID_COMPAQ,
15212 TG3PCI_SUBDEVICE_ID_COMPAQ_BANSHEE_2, TG3_PHY_ID_BCM5701 },
15213 { TG3PCI_SUBVENDOR_ID_COMPAQ,
15214 TG3PCI_SUBDEVICE_ID_COMPAQ_CHANGELING, 0 },
15215 { TG3PCI_SUBVENDOR_ID_COMPAQ,
15216 TG3PCI_SUBDEVICE_ID_COMPAQ_NC7780, TG3_PHY_ID_BCM5701 },
15217 { TG3PCI_SUBVENDOR_ID_COMPAQ,
15218 TG3PCI_SUBDEVICE_ID_COMPAQ_NC7780_2, TG3_PHY_ID_BCM5701 },
15219
15220 /* IBM boards. */
15221 { TG3PCI_SUBVENDOR_ID_IBM,
15222 TG3PCI_SUBDEVICE_ID_IBM_5703SAX2, 0 }
15223};
15224
15225static struct subsys_tbl_ent *tg3_lookup_by_subsys(struct tg3 *tp)
15226{
15227 int i;
15228
15229 for (i = 0; i < ARRAY_SIZE(subsys_id_to_phy_id); i++) {
15230 if ((subsys_id_to_phy_id[i].subsys_vendor ==
15231 tp->pdev->subsystem_vendor) &&
15232 (subsys_id_to_phy_id[i].subsys_devid ==
15233 tp->pdev->subsystem_device))
15234 return &subsys_id_to_phy_id[i];
15235 }
15236 return NULL;
15237}
15238
15239static void tg3_get_eeprom_hw_cfg(struct tg3 *tp)
15240{
15241 u32 val;
15242
15243 tp->phy_id = TG3_PHY_ID_INVALID;
15244 tp->led_ctrl = LED_CTRL_MODE_PHY_1;
15245
15246 /* Assume an onboard device and WOL capable by default. */
15247 tg3_flag_set(tp, EEPROM_WRITE_PROT);
15248 tg3_flag_set(tp, WOL_CAP);
15249
15250 if (tg3_asic_rev(tp) == ASIC_REV_5906) {
15251 if (!(tr32(PCIE_TRANSACTION_CFG) & PCIE_TRANS_CFG_LOM)) {
15252 tg3_flag_clear(tp, EEPROM_WRITE_PROT);
15253 tg3_flag_set(tp, IS_NIC);
15254 }
15255 val = tr32(VCPU_CFGSHDW);
15256 if (val & VCPU_CFGSHDW_ASPM_DBNC)
15257 tg3_flag_set(tp, ASPM_WORKAROUND);
15258 if ((val & VCPU_CFGSHDW_WOL_ENABLE) &&
15259 (val & VCPU_CFGSHDW_WOL_MAGPKT)) {
15260 tg3_flag_set(tp, WOL_ENABLE);
15261 device_set_wakeup_enable(dev: &tp->pdev->dev, enable: true);
15262 }
15263 goto done;
15264 }
15265
15266 tg3_read_mem(tp, NIC_SRAM_DATA_SIG, val: &val);
15267 if (val == NIC_SRAM_DATA_SIG_MAGIC) {
15268 u32 nic_cfg, led_cfg;
15269 u32 cfg2 = 0, cfg4 = 0, cfg5 = 0;
15270 u32 nic_phy_id, ver, eeprom_phy_id;
15271 int eeprom_phy_serdes = 0;
15272
15273 tg3_read_mem(tp, NIC_SRAM_DATA_CFG, val: &nic_cfg);
15274 tp->nic_sram_data_cfg = nic_cfg;
15275
15276 tg3_read_mem(tp, NIC_SRAM_DATA_VER, val: &ver);
15277 ver >>= NIC_SRAM_DATA_VER_SHIFT;
15278 if (tg3_asic_rev(tp) != ASIC_REV_5700 &&
15279 tg3_asic_rev(tp) != ASIC_REV_5701 &&
15280 tg3_asic_rev(tp) != ASIC_REV_5703 &&
15281 (ver > 0) && (ver < 0x100))
15282 tg3_read_mem(tp, NIC_SRAM_DATA_CFG_2, val: &cfg2);
15283
15284 if (tg3_asic_rev(tp) == ASIC_REV_5785)
15285 tg3_read_mem(tp, NIC_SRAM_DATA_CFG_4, val: &cfg4);
15286
15287 if (tg3_asic_rev(tp) == ASIC_REV_5717 ||
15288 tg3_asic_rev(tp) == ASIC_REV_5719 ||
15289 tg3_asic_rev(tp) == ASIC_REV_5720)
15290 tg3_read_mem(tp, NIC_SRAM_DATA_CFG_5, val: &cfg5);
15291
15292 if ((nic_cfg & NIC_SRAM_DATA_CFG_PHY_TYPE_MASK) ==
15293 NIC_SRAM_DATA_CFG_PHY_TYPE_FIBER)
15294 eeprom_phy_serdes = 1;
15295
15296 tg3_read_mem(tp, NIC_SRAM_DATA_PHY_ID, val: &nic_phy_id);
15297 if (nic_phy_id != 0) {
15298 u32 id1 = nic_phy_id & NIC_SRAM_DATA_PHY_ID1_MASK;
15299 u32 id2 = nic_phy_id & NIC_SRAM_DATA_PHY_ID2_MASK;
15300
15301 eeprom_phy_id = (id1 >> 16) << 10;
15302 eeprom_phy_id |= (id2 & 0xfc00) << 16;
15303 eeprom_phy_id |= (id2 & 0x03ff) << 0;
15304 } else
15305 eeprom_phy_id = 0;
15306
15307 tp->phy_id = eeprom_phy_id;
15308 if (eeprom_phy_serdes) {
15309 if (!tg3_flag(tp, 5705_PLUS))
15310 tp->phy_flags |= TG3_PHYFLG_PHY_SERDES;
15311 else
15312 tp->phy_flags |= TG3_PHYFLG_MII_SERDES;
15313 }
15314
15315 if (tg3_flag(tp, 5750_PLUS))
15316 led_cfg = cfg2 & (NIC_SRAM_DATA_CFG_LED_MODE_MASK |
15317 SHASTA_EXT_LED_MODE_MASK);
15318 else
15319 led_cfg = nic_cfg & NIC_SRAM_DATA_CFG_LED_MODE_MASK;
15320
15321 switch (led_cfg) {
15322 default:
15323 case NIC_SRAM_DATA_CFG_LED_MODE_PHY_1:
15324 tp->led_ctrl = LED_CTRL_MODE_PHY_1;
15325 break;
15326
15327 case NIC_SRAM_DATA_CFG_LED_MODE_PHY_2:
15328 tp->led_ctrl = LED_CTRL_MODE_PHY_2;
15329 break;
15330
15331 case NIC_SRAM_DATA_CFG_LED_MODE_MAC:
15332 tp->led_ctrl = LED_CTRL_MODE_MAC;
15333
15334 /* Default to PHY_1_MODE if 0 (MAC_MODE) is
15335 * read on some older 5700/5701 bootcode.
15336 */
15337 if (tg3_asic_rev(tp) == ASIC_REV_5700 ||
15338 tg3_asic_rev(tp) == ASIC_REV_5701)
15339 tp->led_ctrl = LED_CTRL_MODE_PHY_1;
15340
15341 break;
15342
15343 case SHASTA_EXT_LED_SHARED:
15344 tp->led_ctrl = LED_CTRL_MODE_SHARED;
15345 if (tg3_chip_rev_id(tp) != CHIPREV_ID_5750_A0 &&
15346 tg3_chip_rev_id(tp) != CHIPREV_ID_5750_A1)
15347 tp->led_ctrl |= (LED_CTRL_MODE_PHY_1 |
15348 LED_CTRL_MODE_PHY_2);
15349
15350 if (tg3_flag(tp, 5717_PLUS) ||
15351 tg3_asic_rev(tp) == ASIC_REV_5762)
15352 tp->led_ctrl |= LED_CTRL_BLINK_RATE_OVERRIDE |
15353 LED_CTRL_BLINK_RATE_MASK;
15354
15355 break;
15356
15357 case SHASTA_EXT_LED_MAC:
15358 tp->led_ctrl = LED_CTRL_MODE_SHASTA_MAC;
15359 break;
15360
15361 case SHASTA_EXT_LED_COMBO:
15362 tp->led_ctrl = LED_CTRL_MODE_COMBO;
15363 if (tg3_chip_rev_id(tp) != CHIPREV_ID_5750_A0)
15364 tp->led_ctrl |= (LED_CTRL_MODE_PHY_1 |
15365 LED_CTRL_MODE_PHY_2);
15366 break;
15367
15368 }
15369
15370 if ((tg3_asic_rev(tp) == ASIC_REV_5700 ||
15371 tg3_asic_rev(tp) == ASIC_REV_5701) &&
15372 tp->pdev->subsystem_vendor == PCI_VENDOR_ID_DELL)
15373 tp->led_ctrl = LED_CTRL_MODE_PHY_2;
15374
15375 if (tg3_chip_rev(tp) == CHIPREV_5784_AX)
15376 tp->led_ctrl = LED_CTRL_MODE_PHY_1;
15377
15378 if (nic_cfg & NIC_SRAM_DATA_CFG_EEPROM_WP) {
15379 tg3_flag_set(tp, EEPROM_WRITE_PROT);
15380 if ((tp->pdev->subsystem_vendor ==
15381 PCI_VENDOR_ID_ARIMA) &&
15382 (tp->pdev->subsystem_device == 0x205a ||
15383 tp->pdev->subsystem_device == 0x2063))
15384 tg3_flag_clear(tp, EEPROM_WRITE_PROT);
15385 } else {
15386 tg3_flag_clear(tp, EEPROM_WRITE_PROT);
15387 tg3_flag_set(tp, IS_NIC);
15388 }
15389
15390 if (nic_cfg & NIC_SRAM_DATA_CFG_ASF_ENABLE) {
15391 tg3_flag_set(tp, ENABLE_ASF);
15392 if (tg3_flag(tp, 5750_PLUS))
15393 tg3_flag_set(tp, ASF_NEW_HANDSHAKE);
15394 }
15395
15396 if ((nic_cfg & NIC_SRAM_DATA_CFG_APE_ENABLE) &&
15397 tg3_flag(tp, 5750_PLUS))
15398 tg3_flag_set(tp, ENABLE_APE);
15399
15400 if (tp->phy_flags & TG3_PHYFLG_ANY_SERDES &&
15401 !(nic_cfg & NIC_SRAM_DATA_CFG_FIBER_WOL))
15402 tg3_flag_clear(tp, WOL_CAP);
15403
15404 if (tg3_flag(tp, WOL_CAP) &&
15405 (nic_cfg & NIC_SRAM_DATA_CFG_WOL_ENABLE)) {
15406 tg3_flag_set(tp, WOL_ENABLE);
15407 device_set_wakeup_enable(dev: &tp->pdev->dev, enable: true);
15408 }
15409
15410 if (cfg2 & (1 << 17))
15411 tp->phy_flags |= TG3_PHYFLG_CAPACITIVE_COUPLING;
15412
15413 /* serdes signal pre-emphasis in register 0x590 set by */
15414 /* bootcode if bit 18 is set */
15415 if (cfg2 & (1 << 18))
15416 tp->phy_flags |= TG3_PHYFLG_SERDES_PREEMPHASIS;
15417
15418 if ((tg3_flag(tp, 57765_PLUS) ||
15419 (tg3_asic_rev(tp) == ASIC_REV_5784 &&
15420 tg3_chip_rev(tp) != CHIPREV_5784_AX)) &&
15421 (cfg2 & NIC_SRAM_DATA_CFG_2_APD_EN))
15422 tp->phy_flags |= TG3_PHYFLG_ENABLE_APD;
15423
15424 if (tg3_flag(tp, PCI_EXPRESS)) {
15425 u32 cfg3;
15426
15427 tg3_read_mem(tp, NIC_SRAM_DATA_CFG_3, val: &cfg3);
15428 if (tg3_asic_rev(tp) != ASIC_REV_5785 &&
15429 !tg3_flag(tp, 57765_PLUS) &&
15430 (cfg3 & NIC_SRAM_ASPM_DEBOUNCE))
15431 tg3_flag_set(tp, ASPM_WORKAROUND);
15432 if (cfg3 & NIC_SRAM_LNK_FLAP_AVOID)
15433 tp->phy_flags |= TG3_PHYFLG_KEEP_LINK_ON_PWRDN;
15434 if (cfg3 & NIC_SRAM_1G_ON_VAUX_OK)
15435 tp->phy_flags |= TG3_PHYFLG_1G_ON_VAUX_OK;
15436 }
15437
15438 if (cfg4 & NIC_SRAM_RGMII_INBAND_DISABLE)
15439 tg3_flag_set(tp, RGMII_INBAND_DISABLE);
15440 if (cfg4 & NIC_SRAM_RGMII_EXT_IBND_RX_EN)
15441 tg3_flag_set(tp, RGMII_EXT_IBND_RX_EN);
15442 if (cfg4 & NIC_SRAM_RGMII_EXT_IBND_TX_EN)
15443 tg3_flag_set(tp, RGMII_EXT_IBND_TX_EN);
15444
15445 if (cfg5 & NIC_SRAM_DISABLE_1G_HALF_ADV)
15446 tp->phy_flags |= TG3_PHYFLG_DISABLE_1G_HD_ADV;
15447 }
15448done:
15449 if (tg3_flag(tp, WOL_CAP))
15450 device_set_wakeup_enable(dev: &tp->pdev->dev,
15451 tg3_flag(tp, WOL_ENABLE));
15452 else
15453 device_set_wakeup_capable(dev: &tp->pdev->dev, capable: false);
15454}
15455
15456static int tg3_ape_otp_read(struct tg3 *tp, u32 offset, u32 *val)
15457{
15458 int i, err;
15459 u32 val2, off = offset * 8;
15460
15461 err = tg3_nvram_lock(tp);
15462 if (err)
15463 return err;
15464
15465 tg3_ape_write32(tp, TG3_APE_OTP_ADDR, val: off | APE_OTP_ADDR_CPU_ENABLE);
15466 tg3_ape_write32(tp, TG3_APE_OTP_CTRL, APE_OTP_CTRL_PROG_EN |
15467 APE_OTP_CTRL_CMD_RD | APE_OTP_CTRL_START);
15468 tg3_ape_read32(tp, TG3_APE_OTP_CTRL);
15469 udelay(usec: 10);
15470
15471 for (i = 0; i < 100; i++) {
15472 val2 = tg3_ape_read32(tp, TG3_APE_OTP_STATUS);
15473 if (val2 & APE_OTP_STATUS_CMD_DONE) {
15474 *val = tg3_ape_read32(tp, TG3_APE_OTP_RD_DATA);
15475 break;
15476 }
15477 udelay(usec: 10);
15478 }
15479
15480 tg3_ape_write32(tp, TG3_APE_OTP_CTRL, val: 0);
15481
15482 tg3_nvram_unlock(tp);
15483 if (val2 & APE_OTP_STATUS_CMD_DONE)
15484 return 0;
15485
15486 return -EBUSY;
15487}
15488
15489static int tg3_issue_otp_command(struct tg3 *tp, u32 cmd)
15490{
15491 int i;
15492 u32 val;
15493
15494 tw32(OTP_CTRL, cmd | OTP_CTRL_OTP_CMD_START);
15495 tw32(OTP_CTRL, cmd);
15496
15497 /* Wait for up to 1 ms for command to execute. */
15498 for (i = 0; i < 100; i++) {
15499 val = tr32(OTP_STATUS);
15500 if (val & OTP_STATUS_CMD_DONE)
15501 break;
15502 udelay(usec: 10);
15503 }
15504
15505 return (val & OTP_STATUS_CMD_DONE) ? 0 : -EBUSY;
15506}
15507
15508/* Read the gphy configuration from the OTP region of the chip. The gphy
15509 * configuration is a 32-bit value that straddles the alignment boundary.
15510 * We do two 32-bit reads and then shift and merge the results.
15511 */
15512static u32 tg3_read_otp_phycfg(struct tg3 *tp)
15513{
15514 u32 bhalf_otp, thalf_otp;
15515
15516 tw32(OTP_MODE, OTP_MODE_OTP_THRU_GRC);
15517
15518 if (tg3_issue_otp_command(tp, OTP_CTRL_OTP_CMD_INIT))
15519 return 0;
15520
15521 tw32(OTP_ADDRESS, OTP_ADDRESS_MAGIC1);
15522
15523 if (tg3_issue_otp_command(tp, OTP_CTRL_OTP_CMD_READ))
15524 return 0;
15525
15526 thalf_otp = tr32(OTP_READ_DATA);
15527
15528 tw32(OTP_ADDRESS, OTP_ADDRESS_MAGIC2);
15529
15530 if (tg3_issue_otp_command(tp, OTP_CTRL_OTP_CMD_READ))
15531 return 0;
15532
15533 bhalf_otp = tr32(OTP_READ_DATA);
15534
15535 return ((thalf_otp & 0x0000ffff) << 16) | (bhalf_otp >> 16);
15536}
15537
15538static void tg3_phy_init_link_config(struct tg3 *tp)
15539{
15540 u32 adv = ADVERTISED_Autoneg;
15541
15542 if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY)) {
15543 if (!(tp->phy_flags & TG3_PHYFLG_DISABLE_1G_HD_ADV))
15544 adv |= ADVERTISED_1000baseT_Half;
15545 adv |= ADVERTISED_1000baseT_Full;
15546 }
15547
15548 if (!(tp->phy_flags & TG3_PHYFLG_ANY_SERDES))
15549 adv |= ADVERTISED_100baseT_Half |
15550 ADVERTISED_100baseT_Full |
15551 ADVERTISED_10baseT_Half |
15552 ADVERTISED_10baseT_Full |
15553 ADVERTISED_TP;
15554 else
15555 adv |= ADVERTISED_FIBRE;
15556
15557 tp->link_config.advertising = adv;
15558 tp->link_config.speed = SPEED_UNKNOWN;
15559 tp->link_config.duplex = DUPLEX_UNKNOWN;
15560 tp->link_config.autoneg = AUTONEG_ENABLE;
15561 tp->link_config.active_speed = SPEED_UNKNOWN;
15562 tp->link_config.active_duplex = DUPLEX_UNKNOWN;
15563
15564 tp->old_link = -1;
15565}
15566
15567static int tg3_phy_probe(struct tg3 *tp)
15568{
15569 u32 hw_phy_id_1, hw_phy_id_2;
15570 u32 hw_phy_id, hw_phy_id_masked;
15571 int err;
15572
15573 /* flow control autonegotiation is default behavior */
15574 tg3_flag_set(tp, PAUSE_AUTONEG);
15575 tp->link_config.flowctrl = FLOW_CTRL_TX | FLOW_CTRL_RX;
15576
15577 if (tg3_flag(tp, ENABLE_APE)) {
15578 switch (tp->pci_fn) {
15579 case 0:
15580 tp->phy_ape_lock = TG3_APE_LOCK_PHY0;
15581 break;
15582 case 1:
15583 tp->phy_ape_lock = TG3_APE_LOCK_PHY1;
15584 break;
15585 case 2:
15586 tp->phy_ape_lock = TG3_APE_LOCK_PHY2;
15587 break;
15588 case 3:
15589 tp->phy_ape_lock = TG3_APE_LOCK_PHY3;
15590 break;
15591 }
15592 }
15593
15594 if (!tg3_flag(tp, ENABLE_ASF) &&
15595 !(tp->phy_flags & TG3_PHYFLG_ANY_SERDES) &&
15596 !(tp->phy_flags & TG3_PHYFLG_10_100_ONLY))
15597 tp->phy_flags &= ~(TG3_PHYFLG_1G_ON_VAUX_OK |
15598 TG3_PHYFLG_KEEP_LINK_ON_PWRDN);
15599
15600 if (tg3_flag(tp, USE_PHYLIB))
15601 return tg3_phy_init(tp);
15602
15603 /* Reading the PHY ID register can conflict with ASF
15604 * firmware access to the PHY hardware.
15605 */
15606 err = 0;
15607 if (tg3_flag(tp, ENABLE_ASF) || tg3_flag(tp, ENABLE_APE)) {
15608 hw_phy_id = hw_phy_id_masked = TG3_PHY_ID_INVALID;
15609 } else {
15610 /* Now read the physical PHY_ID from the chip and verify
15611 * that it is sane. If it doesn't look good, we fall back
15612 * to either the hard-coded table based PHY_ID and failing
15613 * that the value found in the eeprom area.
15614 */
15615 err |= tg3_readphy(tp, MII_PHYSID1, val: &hw_phy_id_1);
15616 err |= tg3_readphy(tp, MII_PHYSID2, val: &hw_phy_id_2);
15617
15618 hw_phy_id = (hw_phy_id_1 & 0xffff) << 10;
15619 hw_phy_id |= (hw_phy_id_2 & 0xfc00) << 16;
15620 hw_phy_id |= (hw_phy_id_2 & 0x03ff) << 0;
15621
15622 hw_phy_id_masked = hw_phy_id & TG3_PHY_ID_MASK;
15623 }
15624
15625 if (!err && TG3_KNOWN_PHY_ID(hw_phy_id_masked)) {
15626 tp->phy_id = hw_phy_id;
15627 if (hw_phy_id_masked == TG3_PHY_ID_BCM8002)
15628 tp->phy_flags |= TG3_PHYFLG_PHY_SERDES;
15629 else
15630 tp->phy_flags &= ~TG3_PHYFLG_PHY_SERDES;
15631 } else {
15632 if (tp->phy_id != TG3_PHY_ID_INVALID) {
15633 /* Do nothing, phy ID already set up in
15634 * tg3_get_eeprom_hw_cfg().
15635 */
15636 } else {
15637 struct subsys_tbl_ent *p;
15638
15639 /* No eeprom signature? Try the hardcoded
15640 * subsys device table.
15641 */
15642 p = tg3_lookup_by_subsys(tp);
15643 if (p) {
15644 tp->phy_id = p->phy_id;
15645 } else if (!tg3_flag(tp, IS_SSB_CORE)) {
15646 /* For now we saw the IDs 0xbc050cd0,
15647 * 0xbc050f80 and 0xbc050c30 on devices
15648 * connected to an BCM4785 and there are
15649 * probably more. Just assume that the phy is
15650 * supported when it is connected to a SSB core
15651 * for now.
15652 */
15653 return -ENODEV;
15654 }
15655
15656 if (!tp->phy_id ||
15657 tp->phy_id == TG3_PHY_ID_BCM8002)
15658 tp->phy_flags |= TG3_PHYFLG_PHY_SERDES;
15659 }
15660 }
15661
15662 if (!(tp->phy_flags & TG3_PHYFLG_ANY_SERDES) &&
15663 (tg3_asic_rev(tp) == ASIC_REV_5719 ||
15664 tg3_asic_rev(tp) == ASIC_REV_5720 ||
15665 tg3_asic_rev(tp) == ASIC_REV_57766 ||
15666 tg3_asic_rev(tp) == ASIC_REV_5762 ||
15667 (tg3_asic_rev(tp) == ASIC_REV_5717 &&
15668 tg3_chip_rev_id(tp) != CHIPREV_ID_5717_A0) ||
15669 (tg3_asic_rev(tp) == ASIC_REV_57765 &&
15670 tg3_chip_rev_id(tp) != CHIPREV_ID_57765_A0))) {
15671 tp->phy_flags |= TG3_PHYFLG_EEE_CAP;
15672
15673 linkmode_zero(dst: tp->eee.supported);
15674 linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT,
15675 tp->eee.supported);
15676 linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
15677 tp->eee.supported);
15678 linkmode_copy(dst: tp->eee.advertised, src: tp->eee.supported);
15679
15680 tp->eee.eee_enabled = 1;
15681 tp->eee.tx_lpi_enabled = 1;
15682 tp->eee.tx_lpi_timer = TG3_CPMU_DBTMR1_LNKIDLE_2047US;
15683 }
15684
15685 tg3_phy_init_link_config(tp);
15686
15687 if (!(tp->phy_flags & TG3_PHYFLG_KEEP_LINK_ON_PWRDN) &&
15688 !(tp->phy_flags & TG3_PHYFLG_ANY_SERDES) &&
15689 !tg3_flag(tp, ENABLE_APE) &&
15690 !tg3_flag(tp, ENABLE_ASF)) {
15691 u32 bmsr, dummy;
15692
15693 tg3_readphy(tp, MII_BMSR, val: &bmsr);
15694 if (!tg3_readphy(tp, MII_BMSR, val: &bmsr) &&
15695 (bmsr & BMSR_LSTATUS))
15696 goto skip_phy_reset;
15697
15698 err = tg3_phy_reset(tp);
15699 if (err)
15700 return err;
15701
15702 tg3_phy_set_wirespeed(tp);
15703
15704 if (!tg3_phy_copper_an_config_ok(tp, lcladv: &dummy)) {
15705 tg3_phy_autoneg_cfg(tp, advertise: tp->link_config.advertising,
15706 flowctrl: tp->link_config.flowctrl);
15707
15708 tg3_writephy(tp, MII_BMCR,
15709 BMCR_ANENABLE | BMCR_ANRESTART);
15710 }
15711 }
15712
15713skip_phy_reset:
15714 if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5401) {
15715 err = tg3_init_5401phy_dsp(tp);
15716 if (err)
15717 return err;
15718
15719 err = tg3_init_5401phy_dsp(tp);
15720 }
15721
15722 return err;
15723}
15724
15725static void tg3_read_vpd(struct tg3 *tp)
15726{
15727 u8 *vpd_data;
15728 unsigned int len, vpdlen;
15729 int i;
15730
15731 vpd_data = (u8 *)tg3_vpd_readblock(tp, vpdlen: &vpdlen);
15732 if (!vpd_data)
15733 goto out_no_vpd;
15734
15735 i = pci_vpd_find_ro_info_keyword(buf: vpd_data, len: vpdlen,
15736 PCI_VPD_RO_KEYWORD_MFR_ID, size: &len);
15737 if (i < 0)
15738 goto partno;
15739
15740 if (len != 4 || memcmp(vpd_data + i, "1028", 4))
15741 goto partno;
15742
15743 i = pci_vpd_find_ro_info_keyword(buf: vpd_data, len: vpdlen,
15744 PCI_VPD_RO_KEYWORD_VENDOR0, size: &len);
15745 if (i < 0)
15746 goto partno;
15747
15748 memset(s: tp->fw_ver, c: 0, n: sizeof(tp->fw_ver));
15749 snprintf(buf: tp->fw_ver, size: sizeof(tp->fw_ver), fmt: "%.*s bc ", len, vpd_data + i);
15750
15751partno:
15752 i = pci_vpd_find_ro_info_keyword(buf: vpd_data, len: vpdlen,
15753 PCI_VPD_RO_KEYWORD_PARTNO, size: &len);
15754 if (i < 0)
15755 goto out_not_found;
15756
15757 if (len > TG3_BPN_SIZE)
15758 goto out_not_found;
15759
15760 memcpy(to: tp->board_part_number, from: &vpd_data[i], len);
15761
15762out_not_found:
15763 kfree(objp: vpd_data);
15764 if (tp->board_part_number[0])
15765 return;
15766
15767out_no_vpd:
15768 if (tg3_asic_rev(tp) == ASIC_REV_5717) {
15769 if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_5717 ||
15770 tp->pdev->device == TG3PCI_DEVICE_TIGON3_5717_C)
15771 strcpy(tp->board_part_number, "BCM5717");
15772 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_5718)
15773 strcpy(tp->board_part_number, "BCM5718");
15774 else
15775 goto nomatch;
15776 } else if (tg3_asic_rev(tp) == ASIC_REV_57780) {
15777 if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57780)
15778 strcpy(tp->board_part_number, "BCM57780");
15779 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57760)
15780 strcpy(tp->board_part_number, "BCM57760");
15781 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57790)
15782 strcpy(tp->board_part_number, "BCM57790");
15783 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57788)
15784 strcpy(tp->board_part_number, "BCM57788");
15785 else
15786 goto nomatch;
15787 } else if (tg3_asic_rev(tp) == ASIC_REV_57765) {
15788 if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57761)
15789 strcpy(tp->board_part_number, "BCM57761");
15790 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57765)
15791 strcpy(tp->board_part_number, "BCM57765");
15792 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57781)
15793 strcpy(tp->board_part_number, "BCM57781");
15794 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57785)
15795 strcpy(tp->board_part_number, "BCM57785");
15796 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57791)
15797 strcpy(tp->board_part_number, "BCM57791");
15798 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57795)
15799 strcpy(tp->board_part_number, "BCM57795");
15800 else
15801 goto nomatch;
15802 } else if (tg3_asic_rev(tp) == ASIC_REV_57766) {
15803 if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57762)
15804 strcpy(tp->board_part_number, "BCM57762");
15805 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57766)
15806 strcpy(tp->board_part_number, "BCM57766");
15807 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57782)
15808 strcpy(tp->board_part_number, "BCM57782");
15809 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57786)
15810 strcpy(tp->board_part_number, "BCM57786");
15811 else
15812 goto nomatch;
15813 } else if (tg3_asic_rev(tp) == ASIC_REV_5906) {
15814 strcpy(tp->board_part_number, "BCM95906");
15815 } else {
15816nomatch:
15817 strcpy(tp->board_part_number, "none");
15818 }
15819}
15820
15821static int tg3_fw_img_is_valid(struct tg3 *tp, u32 offset)
15822{
15823 u32 val;
15824
15825 if (tg3_nvram_read(tp, offset, val: &val) ||
15826 (val & 0xfc000000) != 0x0c000000 ||
15827 tg3_nvram_read(tp, offset: offset + 4, val: &val) ||
15828 val != 0)
15829 return 0;
15830
15831 return 1;
15832}
15833
15834static void tg3_read_bc_ver(struct tg3 *tp)
15835{
15836 u32 val, offset, start, ver_offset;
15837 int i, dst_off;
15838 bool newver = false;
15839
15840 if (tg3_nvram_read(tp, offset: 0xc, val: &offset) ||
15841 tg3_nvram_read(tp, offset: 0x4, val: &start))
15842 return;
15843
15844 offset = tg3_nvram_logical_addr(tp, addr: offset);
15845
15846 if (tg3_nvram_read(tp, offset, val: &val))
15847 return;
15848
15849 if ((val & 0xfc000000) == 0x0c000000) {
15850 if (tg3_nvram_read(tp, offset: offset + 4, val: &val))
15851 return;
15852
15853 if (val == 0)
15854 newver = true;
15855 }
15856
15857 dst_off = strlen(tp->fw_ver);
15858
15859 if (newver) {
15860 if (TG3_VER_SIZE - dst_off < 16 ||
15861 tg3_nvram_read(tp, offset: offset + 8, val: &ver_offset))
15862 return;
15863
15864 offset = offset + ver_offset - start;
15865 for (i = 0; i < 16; i += 4) {
15866 __be32 v;
15867 if (tg3_nvram_read_be32(tp, offset: offset + i, val: &v))
15868 return;
15869
15870 memcpy(to: tp->fw_ver + dst_off + i, from: &v, len: sizeof(v));
15871 }
15872 } else {
15873 u32 major, minor;
15874
15875 if (tg3_nvram_read(tp, TG3_NVM_PTREV_BCVER, val: &ver_offset))
15876 return;
15877
15878 major = (ver_offset & TG3_NVM_BCVER_MAJMSK) >>
15879 TG3_NVM_BCVER_MAJSFT;
15880 minor = ver_offset & TG3_NVM_BCVER_MINMSK;
15881 snprintf(buf: &tp->fw_ver[dst_off], TG3_VER_SIZE - dst_off,
15882 fmt: "v%d.%02d", major, minor);
15883 }
15884}
15885
15886static void tg3_read_hwsb_ver(struct tg3 *tp)
15887{
15888 u32 val, major, minor;
15889
15890 /* Use native endian representation */
15891 if (tg3_nvram_read(tp, TG3_NVM_HWSB_CFG1, val: &val))
15892 return;
15893
15894 major = (val & TG3_NVM_HWSB_CFG1_MAJMSK) >>
15895 TG3_NVM_HWSB_CFG1_MAJSFT;
15896 minor = (val & TG3_NVM_HWSB_CFG1_MINMSK) >>
15897 TG3_NVM_HWSB_CFG1_MINSFT;
15898
15899 snprintf(buf: &tp->fw_ver[0], size: 32, fmt: "sb v%d.%02d", major, minor);
15900}
15901
15902static void tg3_read_sb_ver(struct tg3 *tp, u32 val)
15903{
15904 u32 offset, major, minor, build;
15905
15906 strncat(tp->fw_ver, "sb", TG3_VER_SIZE - strlen(tp->fw_ver) - 1);
15907
15908 if ((val & TG3_EEPROM_SB_FORMAT_MASK) != TG3_EEPROM_SB_FORMAT_1)
15909 return;
15910
15911 switch (val & TG3_EEPROM_SB_REVISION_MASK) {
15912 case TG3_EEPROM_SB_REVISION_0:
15913 offset = TG3_EEPROM_SB_F1R0_EDH_OFF;
15914 break;
15915 case TG3_EEPROM_SB_REVISION_2:
15916 offset = TG3_EEPROM_SB_F1R2_EDH_OFF;
15917 break;
15918 case TG3_EEPROM_SB_REVISION_3:
15919 offset = TG3_EEPROM_SB_F1R3_EDH_OFF;
15920 break;
15921 case TG3_EEPROM_SB_REVISION_4:
15922 offset = TG3_EEPROM_SB_F1R4_EDH_OFF;
15923 break;
15924 case TG3_EEPROM_SB_REVISION_5:
15925 offset = TG3_EEPROM_SB_F1R5_EDH_OFF;
15926 break;
15927 case TG3_EEPROM_SB_REVISION_6:
15928 offset = TG3_EEPROM_SB_F1R6_EDH_OFF;
15929 break;
15930 default:
15931 return;
15932 }
15933
15934 if (tg3_nvram_read(tp, offset, val: &val))
15935 return;
15936
15937 build = (val & TG3_EEPROM_SB_EDH_BLD_MASK) >>
15938 TG3_EEPROM_SB_EDH_BLD_SHFT;
15939 major = (val & TG3_EEPROM_SB_EDH_MAJ_MASK) >>
15940 TG3_EEPROM_SB_EDH_MAJ_SHFT;
15941 minor = val & TG3_EEPROM_SB_EDH_MIN_MASK;
15942
15943 if (minor > 99 || build > 26)
15944 return;
15945
15946 offset = strlen(tp->fw_ver);
15947 snprintf(buf: &tp->fw_ver[offset], TG3_VER_SIZE - offset,
15948 fmt: " v%d.%02d", major, minor);
15949
15950 if (build > 0) {
15951 offset = strlen(tp->fw_ver);
15952 if (offset < TG3_VER_SIZE - 1)
15953 tp->fw_ver[offset] = 'a' + build - 1;
15954 }
15955}
15956
15957static void tg3_read_mgmtfw_ver(struct tg3 *tp)
15958{
15959 u32 val, offset, start;
15960 int i, vlen;
15961
15962 for (offset = TG3_NVM_DIR_START;
15963 offset < TG3_NVM_DIR_END;
15964 offset += TG3_NVM_DIRENT_SIZE) {
15965 if (tg3_nvram_read(tp, offset, val: &val))
15966 return;
15967
15968 if ((val >> TG3_NVM_DIRTYPE_SHIFT) == TG3_NVM_DIRTYPE_ASFINI)
15969 break;
15970 }
15971
15972 if (offset == TG3_NVM_DIR_END)
15973 return;
15974
15975 if (!tg3_flag(tp, 5705_PLUS))
15976 start = 0x08000000;
15977 else if (tg3_nvram_read(tp, offset: offset - 4, val: &start))
15978 return;
15979
15980 if (tg3_nvram_read(tp, offset: offset + 4, val: &offset) ||
15981 !tg3_fw_img_is_valid(tp, offset) ||
15982 tg3_nvram_read(tp, offset: offset + 8, val: &val))
15983 return;
15984
15985 offset += val - start;
15986
15987 vlen = strlen(tp->fw_ver);
15988
15989 tp->fw_ver[vlen++] = ',';
15990 tp->fw_ver[vlen++] = ' ';
15991
15992 for (i = 0; i < 4; i++) {
15993 __be32 v;
15994 if (tg3_nvram_read_be32(tp, offset, val: &v))
15995 return;
15996
15997 offset += sizeof(v);
15998
15999 if (vlen > TG3_VER_SIZE - sizeof(v)) {
16000 memcpy(to: &tp->fw_ver[vlen], from: &v, TG3_VER_SIZE - vlen);
16001 break;
16002 }
16003
16004 memcpy(to: &tp->fw_ver[vlen], from: &v, len: sizeof(v));
16005 vlen += sizeof(v);
16006 }
16007}
16008
16009static void tg3_probe_ncsi(struct tg3 *tp)
16010{
16011 u32 apedata;
16012
16013 apedata = tg3_ape_read32(tp, TG3_APE_SEG_SIG);
16014 if (apedata != APE_SEG_SIG_MAGIC)
16015 return;
16016
16017 apedata = tg3_ape_read32(tp, TG3_APE_FW_STATUS);
16018 if (!(apedata & APE_FW_STATUS_READY))
16019 return;
16020
16021 if (tg3_ape_read32(tp, TG3_APE_FW_FEATURES) & TG3_APE_FW_FEATURE_NCSI)
16022 tg3_flag_set(tp, APE_HAS_NCSI);
16023}
16024
16025static void tg3_read_dash_ver(struct tg3 *tp)
16026{
16027 int vlen;
16028 u32 apedata;
16029 char *fwtype;
16030
16031 apedata = tg3_ape_read32(tp, TG3_APE_FW_VERSION);
16032
16033 if (tg3_flag(tp, APE_HAS_NCSI))
16034 fwtype = "NCSI";
16035 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_5725)
16036 fwtype = "SMASH";
16037 else
16038 fwtype = "DASH";
16039
16040 vlen = strlen(tp->fw_ver);
16041
16042 snprintf(buf: &tp->fw_ver[vlen], TG3_VER_SIZE - vlen, fmt: " %s v%d.%d.%d.%d",
16043 fwtype,
16044 (apedata & APE_FW_VERSION_MAJMSK) >> APE_FW_VERSION_MAJSFT,
16045 (apedata & APE_FW_VERSION_MINMSK) >> APE_FW_VERSION_MINSFT,
16046 (apedata & APE_FW_VERSION_REVMSK) >> APE_FW_VERSION_REVSFT,
16047 (apedata & APE_FW_VERSION_BLDMSK));
16048}
16049
16050static void tg3_read_otp_ver(struct tg3 *tp)
16051{
16052 u32 val, val2;
16053
16054 if (tg3_asic_rev(tp) != ASIC_REV_5762)
16055 return;
16056
16057 if (!tg3_ape_otp_read(tp, OTP_ADDRESS_MAGIC0, val: &val) &&
16058 !tg3_ape_otp_read(tp, OTP_ADDRESS_MAGIC0 + 4, val: &val2) &&
16059 TG3_OTP_MAGIC0_VALID(val)) {
16060 u64 val64 = (u64) val << 32 | val2;
16061 u32 ver = 0;
16062 int i, vlen;
16063
16064 for (i = 0; i < 7; i++) {
16065 if ((val64 & 0xff) == 0)
16066 break;
16067 ver = val64 & 0xff;
16068 val64 >>= 8;
16069 }
16070 vlen = strlen(tp->fw_ver);
16071 snprintf(buf: &tp->fw_ver[vlen], TG3_VER_SIZE - vlen, fmt: " .%02d", ver);
16072 }
16073}
16074
16075static void tg3_read_fw_ver(struct tg3 *tp)
16076{
16077 u32 val;
16078 bool vpd_vers = false;
16079
16080 if (tp->fw_ver[0] != 0)
16081 vpd_vers = true;
16082
16083 if (tg3_flag(tp, NO_NVRAM)) {
16084 strcat(tp->fw_ver, "sb");
16085 tg3_read_otp_ver(tp);
16086 return;
16087 }
16088
16089 if (tg3_nvram_read(tp, offset: 0, val: &val))
16090 return;
16091
16092 if (val == TG3_EEPROM_MAGIC)
16093 tg3_read_bc_ver(tp);
16094 else if ((val & TG3_EEPROM_MAGIC_FW_MSK) == TG3_EEPROM_MAGIC_FW)
16095 tg3_read_sb_ver(tp, val);
16096 else if ((val & TG3_EEPROM_MAGIC_HW_MSK) == TG3_EEPROM_MAGIC_HW)
16097 tg3_read_hwsb_ver(tp);
16098
16099 if (tg3_flag(tp, ENABLE_ASF)) {
16100 if (tg3_flag(tp, ENABLE_APE)) {
16101 tg3_probe_ncsi(tp);
16102 if (!vpd_vers)
16103 tg3_read_dash_ver(tp);
16104 } else if (!vpd_vers) {
16105 tg3_read_mgmtfw_ver(tp);
16106 }
16107 }
16108
16109 tp->fw_ver[TG3_VER_SIZE - 1] = 0;
16110}
16111
16112static inline u32 tg3_rx_ret_ring_size(struct tg3 *tp)
16113{
16114 if (tg3_flag(tp, LRG_PROD_RING_CAP))
16115 return TG3_RX_RET_MAX_SIZE_5717;
16116 else if (tg3_flag(tp, JUMBO_CAPABLE) && !tg3_flag(tp, 5780_CLASS))
16117 return TG3_RX_RET_MAX_SIZE_5700;
16118 else
16119 return TG3_RX_RET_MAX_SIZE_5705;
16120}
16121
16122static const struct pci_device_id tg3_write_reorder_chipsets[] = {
16123 { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C) },
16124 { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE) },
16125 { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8385_0) },
16126 { },
16127};
16128
16129static struct pci_dev *tg3_find_peer(struct tg3 *tp)
16130{
16131 struct pci_dev *peer;
16132 unsigned int func, devnr = tp->pdev->devfn & ~7;
16133
16134 for (func = 0; func < 8; func++) {
16135 peer = pci_get_slot(bus: tp->pdev->bus, devfn: devnr | func);
16136 if (peer && peer != tp->pdev)
16137 break;
16138 pci_dev_put(dev: peer);
16139 }
16140 /* 5704 can be configured in single-port mode, set peer to
16141 * tp->pdev in that case.
16142 */
16143 if (!peer) {
16144 peer = tp->pdev;
16145 return peer;
16146 }
16147
16148 /*
16149 * We don't need to keep the refcount elevated; there's no way
16150 * to remove one half of this device without removing the other
16151 */
16152 pci_dev_put(dev: peer);
16153
16154 return peer;
16155}
16156
16157static void tg3_detect_asic_rev(struct tg3 *tp, u32 misc_ctrl_reg)
16158{
16159 tp->pci_chip_rev_id = misc_ctrl_reg >> MISC_HOST_CTRL_CHIPREV_SHIFT;
16160 if (tg3_asic_rev(tp) == ASIC_REV_USE_PROD_ID_REG) {
16161 u32 reg;
16162
16163 /* All devices that use the alternate
16164 * ASIC REV location have a CPMU.
16165 */
16166 tg3_flag_set(tp, CPMU_PRESENT);
16167
16168 if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_5717 ||
16169 tp->pdev->device == TG3PCI_DEVICE_TIGON3_5717_C ||
16170 tp->pdev->device == TG3PCI_DEVICE_TIGON3_5718 ||
16171 tp->pdev->device == TG3PCI_DEVICE_TIGON3_5719 ||
16172 tp->pdev->device == TG3PCI_DEVICE_TIGON3_5720 ||
16173 tp->pdev->device == TG3PCI_DEVICE_TIGON3_57767 ||
16174 tp->pdev->device == TG3PCI_DEVICE_TIGON3_57764 ||
16175 tp->pdev->device == TG3PCI_DEVICE_TIGON3_5762 ||
16176 tp->pdev->device == TG3PCI_DEVICE_TIGON3_5725 ||
16177 tp->pdev->device == TG3PCI_DEVICE_TIGON3_5727 ||
16178 tp->pdev->device == TG3PCI_DEVICE_TIGON3_57787)
16179 reg = TG3PCI_GEN2_PRODID_ASICREV;
16180 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57781 ||
16181 tp->pdev->device == TG3PCI_DEVICE_TIGON3_57785 ||
16182 tp->pdev->device == TG3PCI_DEVICE_TIGON3_57761 ||
16183 tp->pdev->device == TG3PCI_DEVICE_TIGON3_57765 ||
16184 tp->pdev->device == TG3PCI_DEVICE_TIGON3_57791 ||
16185 tp->pdev->device == TG3PCI_DEVICE_TIGON3_57795 ||
16186 tp->pdev->device == TG3PCI_DEVICE_TIGON3_57762 ||
16187 tp->pdev->device == TG3PCI_DEVICE_TIGON3_57766 ||
16188 tp->pdev->device == TG3PCI_DEVICE_TIGON3_57782 ||
16189 tp->pdev->device == TG3PCI_DEVICE_TIGON3_57786)
16190 reg = TG3PCI_GEN15_PRODID_ASICREV;
16191 else
16192 reg = TG3PCI_PRODID_ASICREV;
16193
16194 pci_read_config_dword(dev: tp->pdev, where: reg, val: &tp->pci_chip_rev_id);
16195 }
16196
16197 /* Wrong chip ID in 5752 A0. This code can be removed later
16198 * as A0 is not in production.
16199 */
16200 if (tg3_chip_rev_id(tp) == CHIPREV_ID_5752_A0_HW)
16201 tp->pci_chip_rev_id = CHIPREV_ID_5752_A0;
16202
16203 if (tg3_chip_rev_id(tp) == CHIPREV_ID_5717_C0)
16204 tp->pci_chip_rev_id = CHIPREV_ID_5720_A0;
16205
16206 if (tg3_asic_rev(tp) == ASIC_REV_5717 ||
16207 tg3_asic_rev(tp) == ASIC_REV_5719 ||
16208 tg3_asic_rev(tp) == ASIC_REV_5720)
16209 tg3_flag_set(tp, 5717_PLUS);
16210
16211 if (tg3_asic_rev(tp) == ASIC_REV_57765 ||
16212 tg3_asic_rev(tp) == ASIC_REV_57766)
16213 tg3_flag_set(tp, 57765_CLASS);
16214
16215 if (tg3_flag(tp, 57765_CLASS) || tg3_flag(tp, 5717_PLUS) ||
16216 tg3_asic_rev(tp) == ASIC_REV_5762)
16217 tg3_flag_set(tp, 57765_PLUS);
16218
16219 /* Intentionally exclude ASIC_REV_5906 */
16220 if (tg3_asic_rev(tp) == ASIC_REV_5755 ||
16221 tg3_asic_rev(tp) == ASIC_REV_5787 ||
16222 tg3_asic_rev(tp) == ASIC_REV_5784 ||
16223 tg3_asic_rev(tp) == ASIC_REV_5761 ||
16224 tg3_asic_rev(tp) == ASIC_REV_5785 ||
16225 tg3_asic_rev(tp) == ASIC_REV_57780 ||
16226 tg3_flag(tp, 57765_PLUS))
16227 tg3_flag_set(tp, 5755_PLUS);
16228
16229 if (tg3_asic_rev(tp) == ASIC_REV_5780 ||
16230 tg3_asic_rev(tp) == ASIC_REV_5714)
16231 tg3_flag_set(tp, 5780_CLASS);
16232
16233 if (tg3_asic_rev(tp) == ASIC_REV_5750 ||
16234 tg3_asic_rev(tp) == ASIC_REV_5752 ||
16235 tg3_asic_rev(tp) == ASIC_REV_5906 ||
16236 tg3_flag(tp, 5755_PLUS) ||
16237 tg3_flag(tp, 5780_CLASS))
16238 tg3_flag_set(tp, 5750_PLUS);
16239
16240 if (tg3_asic_rev(tp) == ASIC_REV_5705 ||
16241 tg3_flag(tp, 5750_PLUS))
16242 tg3_flag_set(tp, 5705_PLUS);
16243}
16244
16245static bool tg3_10_100_only_device(struct tg3 *tp,
16246 const struct pci_device_id *ent)
16247{
16248 u32 grc_misc_cfg = tr32(GRC_MISC_CFG) & GRC_MISC_CFG_BOARD_ID_MASK;
16249
16250 if ((tg3_asic_rev(tp) == ASIC_REV_5703 &&
16251 (grc_misc_cfg == 0x8000 || grc_misc_cfg == 0x4000)) ||
16252 (tp->phy_flags & TG3_PHYFLG_IS_FET))
16253 return true;
16254
16255 if (ent->driver_data & TG3_DRV_DATA_FLAG_10_100_ONLY) {
16256 if (tg3_asic_rev(tp) == ASIC_REV_5705) {
16257 if (ent->driver_data & TG3_DRV_DATA_FLAG_5705_10_100)
16258 return true;
16259 } else {
16260 return true;
16261 }
16262 }
16263
16264 return false;
16265}
16266
16267static int tg3_get_invariants(struct tg3 *tp, const struct pci_device_id *ent)
16268{
16269 u32 misc_ctrl_reg;
16270 u32 pci_state_reg, grc_misc_cfg;
16271 u32 val;
16272 u16 pci_cmd;
16273 int err;
16274
16275 /* Force memory write invalidate off. If we leave it on,
16276 * then on 5700_BX chips we have to enable a workaround.
16277 * The workaround is to set the TG3PCI_DMA_RW_CTRL boundary
16278 * to match the cacheline size. The Broadcom driver have this
16279 * workaround but turns MWI off all the times so never uses
16280 * it. This seems to suggest that the workaround is insufficient.
16281 */
16282 pci_read_config_word(dev: tp->pdev, PCI_COMMAND, val: &pci_cmd);
16283 pci_cmd &= ~PCI_COMMAND_INVALIDATE;
16284 pci_write_config_word(dev: tp->pdev, PCI_COMMAND, val: pci_cmd);
16285
16286 /* Important! -- Make sure register accesses are byteswapped
16287 * correctly. Also, for those chips that require it, make
16288 * sure that indirect register accesses are enabled before
16289 * the first operation.
16290 */
16291 pci_read_config_dword(dev: tp->pdev, TG3PCI_MISC_HOST_CTRL,
16292 val: &misc_ctrl_reg);
16293 tp->misc_host_ctrl |= (misc_ctrl_reg &
16294 MISC_HOST_CTRL_CHIPREV);
16295 pci_write_config_dword(dev: tp->pdev, TG3PCI_MISC_HOST_CTRL,
16296 val: tp->misc_host_ctrl);
16297
16298 tg3_detect_asic_rev(tp, misc_ctrl_reg);
16299
16300 /* If we have 5702/03 A1 or A2 on certain ICH chipsets,
16301 * we need to disable memory and use config. cycles
16302 * only to access all registers. The 5702/03 chips
16303 * can mistakenly decode the special cycles from the
16304 * ICH chipsets as memory write cycles, causing corruption
16305 * of register and memory space. Only certain ICH bridges
16306 * will drive special cycles with non-zero data during the
16307 * address phase which can fall within the 5703's address
16308 * range. This is not an ICH bug as the PCI spec allows
16309 * non-zero address during special cycles. However, only
16310 * these ICH bridges are known to drive non-zero addresses
16311 * during special cycles.
16312 *
16313 * Since special cycles do not cross PCI bridges, we only
16314 * enable this workaround if the 5703 is on the secondary
16315 * bus of these ICH bridges.
16316 */
16317 if ((tg3_chip_rev_id(tp) == CHIPREV_ID_5703_A1) ||
16318 (tg3_chip_rev_id(tp) == CHIPREV_ID_5703_A2)) {
16319 static struct tg3_dev_id {
16320 u32 vendor;
16321 u32 device;
16322 u32 rev;
16323 } ich_chipsets[] = {
16324 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_8,
16325 PCI_ANY_ID },
16326 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_8,
16327 PCI_ANY_ID },
16328 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_11,
16329 0xa },
16330 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_6,
16331 PCI_ANY_ID },
16332 { },
16333 };
16334 struct tg3_dev_id *pci_id = &ich_chipsets[0];
16335 struct pci_dev *bridge = NULL;
16336
16337 while (pci_id->vendor != 0) {
16338 bridge = pci_get_device(vendor: pci_id->vendor, device: pci_id->device,
16339 from: bridge);
16340 if (!bridge) {
16341 pci_id++;
16342 continue;
16343 }
16344 if (pci_id->rev != PCI_ANY_ID) {
16345 if (bridge->revision > pci_id->rev)
16346 continue;
16347 }
16348 if (bridge->subordinate &&
16349 (bridge->subordinate->number ==
16350 tp->pdev->bus->number)) {
16351 tg3_flag_set(tp, ICH_WORKAROUND);
16352 pci_dev_put(dev: bridge);
16353 break;
16354 }
16355 }
16356 }
16357
16358 if (tg3_asic_rev(tp) == ASIC_REV_5701) {
16359 static struct tg3_dev_id {
16360 u32 vendor;
16361 u32 device;
16362 } bridge_chipsets[] = {
16363 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0 },
16364 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1 },
16365 { },
16366 };
16367 struct tg3_dev_id *pci_id = &bridge_chipsets[0];
16368 struct pci_dev *bridge = NULL;
16369
16370 while (pci_id->vendor != 0) {
16371 bridge = pci_get_device(vendor: pci_id->vendor,
16372 device: pci_id->device,
16373 from: bridge);
16374 if (!bridge) {
16375 pci_id++;
16376 continue;
16377 }
16378 if (bridge->subordinate &&
16379 (bridge->subordinate->number <=
16380 tp->pdev->bus->number) &&
16381 (bridge->subordinate->busn_res.end >=
16382 tp->pdev->bus->number)) {
16383 tg3_flag_set(tp, 5701_DMA_BUG);
16384 pci_dev_put(dev: bridge);
16385 break;
16386 }
16387 }
16388 }
16389
16390 /* The EPB bridge inside 5714, 5715, and 5780 cannot support
16391 * DMA addresses > 40-bit. This bridge may have other additional
16392 * 57xx devices behind it in some 4-port NIC designs for example.
16393 * Any tg3 device found behind the bridge will also need the 40-bit
16394 * DMA workaround.
16395 */
16396 if (tg3_flag(tp, 5780_CLASS)) {
16397 tg3_flag_set(tp, 40BIT_DMA_BUG);
16398 tp->msi_cap = tp->pdev->msi_cap;
16399 } else {
16400 struct pci_dev *bridge = NULL;
16401
16402 do {
16403 bridge = pci_get_device(PCI_VENDOR_ID_SERVERWORKS,
16404 PCI_DEVICE_ID_SERVERWORKS_EPB,
16405 from: bridge);
16406 if (bridge && bridge->subordinate &&
16407 (bridge->subordinate->number <=
16408 tp->pdev->bus->number) &&
16409 (bridge->subordinate->busn_res.end >=
16410 tp->pdev->bus->number)) {
16411 tg3_flag_set(tp, 40BIT_DMA_BUG);
16412 pci_dev_put(dev: bridge);
16413 break;
16414 }
16415 } while (bridge);
16416 }
16417
16418 if (tg3_asic_rev(tp) == ASIC_REV_5704 ||
16419 tg3_asic_rev(tp) == ASIC_REV_5714)
16420 tp->pdev_peer = tg3_find_peer(tp);
16421
16422 /* Determine TSO capabilities */
16423 if (tg3_chip_rev_id(tp) == CHIPREV_ID_5719_A0)
16424 ; /* Do nothing. HW bug. */
16425 else if (tg3_flag(tp, 57765_PLUS))
16426 tg3_flag_set(tp, HW_TSO_3);
16427 else if (tg3_flag(tp, 5755_PLUS) ||
16428 tg3_asic_rev(tp) == ASIC_REV_5906)
16429 tg3_flag_set(tp, HW_TSO_2);
16430 else if (tg3_flag(tp, 5750_PLUS)) {
16431 tg3_flag_set(tp, HW_TSO_1);
16432 tg3_flag_set(tp, TSO_BUG);
16433 if (tg3_asic_rev(tp) == ASIC_REV_5750 &&
16434 tg3_chip_rev_id(tp) >= CHIPREV_ID_5750_C2)
16435 tg3_flag_clear(tp, TSO_BUG);
16436 } else if (tg3_asic_rev(tp) != ASIC_REV_5700 &&
16437 tg3_asic_rev(tp) != ASIC_REV_5701 &&
16438 tg3_chip_rev_id(tp) != CHIPREV_ID_5705_A0) {
16439 tg3_flag_set(tp, FW_TSO);
16440 tg3_flag_set(tp, TSO_BUG);
16441 if (tg3_asic_rev(tp) == ASIC_REV_5705)
16442 tp->fw_needed = FIRMWARE_TG3TSO5;
16443 else
16444 tp->fw_needed = FIRMWARE_TG3TSO;
16445 }
16446
16447 /* Selectively allow TSO based on operating conditions */
16448 if (tg3_flag(tp, HW_TSO_1) ||
16449 tg3_flag(tp, HW_TSO_2) ||
16450 tg3_flag(tp, HW_TSO_3) ||
16451 tg3_flag(tp, FW_TSO)) {
16452 /* For firmware TSO, assume ASF is disabled.
16453 * We'll disable TSO later if we discover ASF
16454 * is enabled in tg3_get_eeprom_hw_cfg().
16455 */
16456 tg3_flag_set(tp, TSO_CAPABLE);
16457 } else {
16458 tg3_flag_clear(tp, TSO_CAPABLE);
16459 tg3_flag_clear(tp, TSO_BUG);
16460 tp->fw_needed = NULL;
16461 }
16462
16463 if (tg3_chip_rev_id(tp) == CHIPREV_ID_5701_A0)
16464 tp->fw_needed = FIRMWARE_TG3;
16465
16466 if (tg3_asic_rev(tp) == ASIC_REV_57766)
16467 tp->fw_needed = FIRMWARE_TG357766;
16468
16469 tp->irq_max = 1;
16470
16471 if (tg3_flag(tp, 5750_PLUS)) {
16472 tg3_flag_set(tp, SUPPORT_MSI);
16473 if (tg3_chip_rev(tp) == CHIPREV_5750_AX ||
16474 tg3_chip_rev(tp) == CHIPREV_5750_BX ||
16475 (tg3_asic_rev(tp) == ASIC_REV_5714 &&
16476 tg3_chip_rev_id(tp) <= CHIPREV_ID_5714_A2 &&
16477 tp->pdev_peer == tp->pdev))
16478 tg3_flag_clear(tp, SUPPORT_MSI);
16479
16480 if (tg3_flag(tp, 5755_PLUS) ||
16481 tg3_asic_rev(tp) == ASIC_REV_5906) {
16482 tg3_flag_set(tp, 1SHOT_MSI);
16483 }
16484
16485 if (tg3_flag(tp, 57765_PLUS)) {
16486 tg3_flag_set(tp, SUPPORT_MSIX);
16487 tp->irq_max = TG3_IRQ_MAX_VECS;
16488 }
16489 }
16490
16491 tp->txq_max = 1;
16492 tp->rxq_max = 1;
16493 if (tp->irq_max > 1) {
16494 tp->rxq_max = TG3_RSS_MAX_NUM_QS;
16495 tg3_rss_init_dflt_indir_tbl(tp, TG3_RSS_MAX_NUM_QS);
16496
16497 if (tg3_asic_rev(tp) == ASIC_REV_5719 ||
16498 tg3_asic_rev(tp) == ASIC_REV_5720)
16499 tp->txq_max = tp->irq_max - 1;
16500 }
16501
16502 if (tg3_flag(tp, 5755_PLUS) ||
16503 tg3_asic_rev(tp) == ASIC_REV_5906)
16504 tg3_flag_set(tp, SHORT_DMA_BUG);
16505
16506 if (tg3_asic_rev(tp) == ASIC_REV_5719)
16507 tp->dma_limit = TG3_TX_BD_DMA_MAX_4K;
16508
16509 if (tg3_asic_rev(tp) == ASIC_REV_5717 ||
16510 tg3_asic_rev(tp) == ASIC_REV_5719 ||
16511 tg3_asic_rev(tp) == ASIC_REV_5720 ||
16512 tg3_asic_rev(tp) == ASIC_REV_5762)
16513 tg3_flag_set(tp, LRG_PROD_RING_CAP);
16514
16515 if (tg3_flag(tp, 57765_PLUS) &&
16516 tg3_chip_rev_id(tp) != CHIPREV_ID_5719_A0)
16517 tg3_flag_set(tp, USE_JUMBO_BDFLAG);
16518
16519 if (!tg3_flag(tp, 5705_PLUS) ||
16520 tg3_flag(tp, 5780_CLASS) ||
16521 tg3_flag(tp, USE_JUMBO_BDFLAG))
16522 tg3_flag_set(tp, JUMBO_CAPABLE);
16523
16524 pci_read_config_dword(dev: tp->pdev, TG3PCI_PCISTATE,
16525 val: &pci_state_reg);
16526
16527 if (pci_is_pcie(dev: tp->pdev)) {
16528 u16 lnkctl;
16529
16530 tg3_flag_set(tp, PCI_EXPRESS);
16531
16532 pcie_capability_read_word(dev: tp->pdev, PCI_EXP_LNKCTL, val: &lnkctl);
16533 if (lnkctl & PCI_EXP_LNKCTL_CLKREQ_EN) {
16534 if (tg3_asic_rev(tp) == ASIC_REV_5906) {
16535 tg3_flag_clear(tp, HW_TSO_2);
16536 tg3_flag_clear(tp, TSO_CAPABLE);
16537 }
16538 if (tg3_asic_rev(tp) == ASIC_REV_5784 ||
16539 tg3_asic_rev(tp) == ASIC_REV_5761 ||
16540 tg3_chip_rev_id(tp) == CHIPREV_ID_57780_A0 ||
16541 tg3_chip_rev_id(tp) == CHIPREV_ID_57780_A1)
16542 tg3_flag_set(tp, CLKREQ_BUG);
16543 } else if (tg3_chip_rev_id(tp) == CHIPREV_ID_5717_A0) {
16544 tg3_flag_set(tp, L1PLLPD_EN);
16545 }
16546 } else if (tg3_asic_rev(tp) == ASIC_REV_5785) {
16547 /* BCM5785 devices are effectively PCIe devices, and should
16548 * follow PCIe codepaths, but do not have a PCIe capabilities
16549 * section.
16550 */
16551 tg3_flag_set(tp, PCI_EXPRESS);
16552 } else if (!tg3_flag(tp, 5705_PLUS) ||
16553 tg3_flag(tp, 5780_CLASS)) {
16554 tp->pcix_cap = pci_find_capability(dev: tp->pdev, PCI_CAP_ID_PCIX);
16555 if (!tp->pcix_cap) {
16556 dev_err(&tp->pdev->dev,
16557 "Cannot find PCI-X capability, aborting\n");
16558 return -EIO;
16559 }
16560
16561 if (!(pci_state_reg & PCISTATE_CONV_PCI_MODE))
16562 tg3_flag_set(tp, PCIX_MODE);
16563 }
16564
16565 /* If we have an AMD 762 or VIA K8T800 chipset, write
16566 * reordering to the mailbox registers done by the host
16567 * controller can cause major troubles. We read back from
16568 * every mailbox register write to force the writes to be
16569 * posted to the chip in order.
16570 */
16571 if (pci_dev_present(ids: tg3_write_reorder_chipsets) &&
16572 !tg3_flag(tp, PCI_EXPRESS))
16573 tg3_flag_set(tp, MBOX_WRITE_REORDER);
16574
16575 pci_read_config_byte(dev: tp->pdev, PCI_CACHE_LINE_SIZE,
16576 val: &tp->pci_cacheline_sz);
16577 pci_read_config_byte(dev: tp->pdev, PCI_LATENCY_TIMER,
16578 val: &tp->pci_lat_timer);
16579 if (tg3_asic_rev(tp) == ASIC_REV_5703 &&
16580 tp->pci_lat_timer < 64) {
16581 tp->pci_lat_timer = 64;
16582 pci_write_config_byte(dev: tp->pdev, PCI_LATENCY_TIMER,
16583 val: tp->pci_lat_timer);
16584 }
16585
16586 /* Important! -- It is critical that the PCI-X hw workaround
16587 * situation is decided before the first MMIO register access.
16588 */
16589 if (tg3_chip_rev(tp) == CHIPREV_5700_BX) {
16590 /* 5700 BX chips need to have their TX producer index
16591 * mailboxes written twice to workaround a bug.
16592 */
16593 tg3_flag_set(tp, TXD_MBOX_HWBUG);
16594
16595 /* If we are in PCI-X mode, enable register write workaround.
16596 *
16597 * The workaround is to use indirect register accesses
16598 * for all chip writes not to mailbox registers.
16599 */
16600 if (tg3_flag(tp, PCIX_MODE)) {
16601 u32 pm_reg;
16602
16603 tg3_flag_set(tp, PCIX_TARGET_HWBUG);
16604
16605 /* The chip can have its power management PCI config
16606 * space registers clobbered due to this bug.
16607 * So explicitly force the chip into D0 here.
16608 */
16609 pci_read_config_dword(dev: tp->pdev,
16610 where: tp->pdev->pm_cap + PCI_PM_CTRL,
16611 val: &pm_reg);
16612 pm_reg &= ~PCI_PM_CTRL_STATE_MASK;
16613 pm_reg |= PCI_PM_CTRL_PME_ENABLE | 0 /* D0 */;
16614 pci_write_config_dword(dev: tp->pdev,
16615 where: tp->pdev->pm_cap + PCI_PM_CTRL,
16616 val: pm_reg);
16617
16618 /* Also, force SERR#/PERR# in PCI command. */
16619 pci_read_config_word(dev: tp->pdev, PCI_COMMAND, val: &pci_cmd);
16620 pci_cmd |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
16621 pci_write_config_word(dev: tp->pdev, PCI_COMMAND, val: pci_cmd);
16622 }
16623 }
16624
16625 if ((pci_state_reg & PCISTATE_BUS_SPEED_HIGH) != 0)
16626 tg3_flag_set(tp, PCI_HIGH_SPEED);
16627 if ((pci_state_reg & PCISTATE_BUS_32BIT) != 0)
16628 tg3_flag_set(tp, PCI_32BIT);
16629
16630 /* Chip-specific fixup from Broadcom driver */
16631 if ((tg3_chip_rev_id(tp) == CHIPREV_ID_5704_A0) &&
16632 (!(pci_state_reg & PCISTATE_RETRY_SAME_DMA))) {
16633 pci_state_reg |= PCISTATE_RETRY_SAME_DMA;
16634 pci_write_config_dword(dev: tp->pdev, TG3PCI_PCISTATE, val: pci_state_reg);
16635 }
16636
16637 /* Default fast path register access methods */
16638 tp->read32 = tg3_read32;
16639 tp->write32 = tg3_write32;
16640 tp->read32_mbox = tg3_read32;
16641 tp->write32_mbox = tg3_write32;
16642 tp->write32_tx_mbox = tg3_write32;
16643 tp->write32_rx_mbox = tg3_write32;
16644
16645 /* Various workaround register access methods */
16646 if (tg3_flag(tp, PCIX_TARGET_HWBUG))
16647 tp->write32 = tg3_write_indirect_reg32;
16648 else if (tg3_asic_rev(tp) == ASIC_REV_5701 ||
16649 (tg3_flag(tp, PCI_EXPRESS) &&
16650 tg3_chip_rev_id(tp) == CHIPREV_ID_5750_A0)) {
16651 /*
16652 * Back to back register writes can cause problems on these
16653 * chips, the workaround is to read back all reg writes
16654 * except those to mailbox regs.
16655 *
16656 * See tg3_write_indirect_reg32().
16657 */
16658 tp->write32 = tg3_write_flush_reg32;
16659 }
16660
16661 if (tg3_flag(tp, TXD_MBOX_HWBUG) || tg3_flag(tp, MBOX_WRITE_REORDER)) {
16662 tp->write32_tx_mbox = tg3_write32_tx_mbox;
16663 if (tg3_flag(tp, MBOX_WRITE_REORDER))
16664 tp->write32_rx_mbox = tg3_write_flush_reg32;
16665 }
16666
16667 if (tg3_flag(tp, ICH_WORKAROUND)) {
16668 tp->read32 = tg3_read_indirect_reg32;
16669 tp->write32 = tg3_write_indirect_reg32;
16670 tp->read32_mbox = tg3_read_indirect_mbox;
16671 tp->write32_mbox = tg3_write_indirect_mbox;
16672 tp->write32_tx_mbox = tg3_write_indirect_mbox;
16673 tp->write32_rx_mbox = tg3_write_indirect_mbox;
16674
16675 iounmap(addr: tp->regs);
16676 tp->regs = NULL;
16677
16678 pci_read_config_word(dev: tp->pdev, PCI_COMMAND, val: &pci_cmd);
16679 pci_cmd &= ~PCI_COMMAND_MEMORY;
16680 pci_write_config_word(dev: tp->pdev, PCI_COMMAND, val: pci_cmd);
16681 }
16682 if (tg3_asic_rev(tp) == ASIC_REV_5906) {
16683 tp->read32_mbox = tg3_read32_mbox_5906;
16684 tp->write32_mbox = tg3_write32_mbox_5906;
16685 tp->write32_tx_mbox = tg3_write32_mbox_5906;
16686 tp->write32_rx_mbox = tg3_write32_mbox_5906;
16687 }
16688
16689 if (tp->write32 == tg3_write_indirect_reg32 ||
16690 (tg3_flag(tp, PCIX_MODE) &&
16691 (tg3_asic_rev(tp) == ASIC_REV_5700 ||
16692 tg3_asic_rev(tp) == ASIC_REV_5701)))
16693 tg3_flag_set(tp, SRAM_USE_CONFIG);
16694
16695 /* The memory arbiter has to be enabled in order for SRAM accesses
16696 * to succeed. Normally on powerup the tg3 chip firmware will make
16697 * sure it is enabled, but other entities such as system netboot
16698 * code might disable it.
16699 */
16700 val = tr32(MEMARB_MODE);
16701 tw32(MEMARB_MODE, val | MEMARB_MODE_ENABLE);
16702
16703 tp->pci_fn = PCI_FUNC(tp->pdev->devfn) & 3;
16704 if (tg3_asic_rev(tp) == ASIC_REV_5704 ||
16705 tg3_flag(tp, 5780_CLASS)) {
16706 if (tg3_flag(tp, PCIX_MODE)) {
16707 pci_read_config_dword(dev: tp->pdev,
16708 where: tp->pcix_cap + PCI_X_STATUS,
16709 val: &val);
16710 tp->pci_fn = val & 0x7;
16711 }
16712 } else if (tg3_asic_rev(tp) == ASIC_REV_5717 ||
16713 tg3_asic_rev(tp) == ASIC_REV_5719 ||
16714 tg3_asic_rev(tp) == ASIC_REV_5720) {
16715 tg3_read_mem(tp, NIC_SRAM_CPMU_STATUS, val: &val);
16716 if ((val & NIC_SRAM_CPMUSTAT_SIG_MSK) != NIC_SRAM_CPMUSTAT_SIG)
16717 val = tr32(TG3_CPMU_STATUS);
16718
16719 if (tg3_asic_rev(tp) == ASIC_REV_5717)
16720 tp->pci_fn = (val & TG3_CPMU_STATUS_FMSK_5717) ? 1 : 0;
16721 else
16722 tp->pci_fn = (val & TG3_CPMU_STATUS_FMSK_5719) >>
16723 TG3_CPMU_STATUS_FSHFT_5719;
16724 }
16725
16726 if (tg3_flag(tp, FLUSH_POSTED_WRITES)) {
16727 tp->write32_tx_mbox = tg3_write_flush_reg32;
16728 tp->write32_rx_mbox = tg3_write_flush_reg32;
16729 }
16730
16731 /* Get eeprom hw config before calling tg3_set_power_state().
16732 * In particular, the TG3_FLAG_IS_NIC flag must be
16733 * determined before calling tg3_set_power_state() so that
16734 * we know whether or not to switch out of Vaux power.
16735 * When the flag is set, it means that GPIO1 is used for eeprom
16736 * write protect and also implies that it is a LOM where GPIOs
16737 * are not used to switch power.
16738 */
16739 tg3_get_eeprom_hw_cfg(tp);
16740
16741 if (tg3_flag(tp, FW_TSO) && tg3_flag(tp, ENABLE_ASF)) {
16742 tg3_flag_clear(tp, TSO_CAPABLE);
16743 tg3_flag_clear(tp, TSO_BUG);
16744 tp->fw_needed = NULL;
16745 }
16746
16747 if (tg3_flag(tp, ENABLE_APE)) {
16748 /* Allow reads and writes to the
16749 * APE register and memory space.
16750 */
16751 pci_state_reg |= PCISTATE_ALLOW_APE_CTLSPC_WR |
16752 PCISTATE_ALLOW_APE_SHMEM_WR |
16753 PCISTATE_ALLOW_APE_PSPACE_WR;
16754 pci_write_config_dword(dev: tp->pdev, TG3PCI_PCISTATE,
16755 val: pci_state_reg);
16756
16757 tg3_ape_lock_init(tp);
16758 tp->ape_hb_interval =
16759 msecs_to_jiffies(APE_HOST_HEARTBEAT_INT_5SEC);
16760 }
16761
16762 /* Set up tp->grc_local_ctrl before calling
16763 * tg3_pwrsrc_switch_to_vmain(). GPIO1 driven high
16764 * will bring 5700's external PHY out of reset.
16765 * It is also used as eeprom write protect on LOMs.
16766 */
16767 tp->grc_local_ctrl = GRC_LCLCTRL_INT_ON_ATTN | GRC_LCLCTRL_AUTO_SEEPROM;
16768 if (tg3_asic_rev(tp) == ASIC_REV_5700 ||
16769 tg3_flag(tp, EEPROM_WRITE_PROT))
16770 tp->grc_local_ctrl |= (GRC_LCLCTRL_GPIO_OE1 |
16771 GRC_LCLCTRL_GPIO_OUTPUT1);
16772 /* Unused GPIO3 must be driven as output on 5752 because there
16773 * are no pull-up resistors on unused GPIO pins.
16774 */
16775 else if (tg3_asic_rev(tp) == ASIC_REV_5752)
16776 tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE3;
16777
16778 if (tg3_asic_rev(tp) == ASIC_REV_5755 ||
16779 tg3_asic_rev(tp) == ASIC_REV_57780 ||
16780 tg3_flag(tp, 57765_CLASS))
16781 tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_UART_SEL;
16782
16783 if (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5761 ||
16784 tp->pdev->device == TG3PCI_DEVICE_TIGON3_5761S) {
16785 /* Turn off the debug UART. */
16786 tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_UART_SEL;
16787 if (tg3_flag(tp, IS_NIC))
16788 /* Keep VMain power. */
16789 tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE0 |
16790 GRC_LCLCTRL_GPIO_OUTPUT0;
16791 }
16792
16793 if (tg3_asic_rev(tp) == ASIC_REV_5762)
16794 tp->grc_local_ctrl |=
16795 tr32(GRC_LOCAL_CTRL) & GRC_LCLCTRL_GPIO_UART_SEL;
16796
16797 /* Switch out of Vaux if it is a NIC */
16798 tg3_pwrsrc_switch_to_vmain(tp);
16799
16800 /* Derive initial jumbo mode from MTU assigned in
16801 * ether_setup() via the alloc_etherdev() call
16802 */
16803 if (tp->dev->mtu > ETH_DATA_LEN && !tg3_flag(tp, 5780_CLASS))
16804 tg3_flag_set(tp, JUMBO_RING_ENABLE);
16805
16806 /* Determine WakeOnLan speed to use. */
16807 if (tg3_asic_rev(tp) == ASIC_REV_5700 ||
16808 tg3_chip_rev_id(tp) == CHIPREV_ID_5701_A0 ||
16809 tg3_chip_rev_id(tp) == CHIPREV_ID_5701_B0 ||
16810 tg3_chip_rev_id(tp) == CHIPREV_ID_5701_B2) {
16811 tg3_flag_clear(tp, WOL_SPEED_100MB);
16812 } else {
16813 tg3_flag_set(tp, WOL_SPEED_100MB);
16814 }
16815
16816 if (tg3_asic_rev(tp) == ASIC_REV_5906)
16817 tp->phy_flags |= TG3_PHYFLG_IS_FET;
16818
16819 /* A few boards don't want Ethernet@WireSpeed phy feature */
16820 if (tg3_asic_rev(tp) == ASIC_REV_5700 ||
16821 (tg3_asic_rev(tp) == ASIC_REV_5705 &&
16822 (tg3_chip_rev_id(tp) != CHIPREV_ID_5705_A0) &&
16823 (tg3_chip_rev_id(tp) != CHIPREV_ID_5705_A1)) ||
16824 (tp->phy_flags & TG3_PHYFLG_IS_FET) ||
16825 (tp->phy_flags & TG3_PHYFLG_ANY_SERDES))
16826 tp->phy_flags |= TG3_PHYFLG_NO_ETH_WIRE_SPEED;
16827
16828 if (tg3_chip_rev(tp) == CHIPREV_5703_AX ||
16829 tg3_chip_rev(tp) == CHIPREV_5704_AX)
16830 tp->phy_flags |= TG3_PHYFLG_ADC_BUG;
16831 if (tg3_chip_rev_id(tp) == CHIPREV_ID_5704_A0)
16832 tp->phy_flags |= TG3_PHYFLG_5704_A0_BUG;
16833
16834 if (tg3_flag(tp, 5705_PLUS) &&
16835 !(tp->phy_flags & TG3_PHYFLG_IS_FET) &&
16836 tg3_asic_rev(tp) != ASIC_REV_5785 &&
16837 tg3_asic_rev(tp) != ASIC_REV_57780 &&
16838 !tg3_flag(tp, 57765_PLUS)) {
16839 if (tg3_asic_rev(tp) == ASIC_REV_5755 ||
16840 tg3_asic_rev(tp) == ASIC_REV_5787 ||
16841 tg3_asic_rev(tp) == ASIC_REV_5784 ||
16842 tg3_asic_rev(tp) == ASIC_REV_5761) {
16843 if (tp->pdev->device != PCI_DEVICE_ID_TIGON3_5756 &&
16844 tp->pdev->device != PCI_DEVICE_ID_TIGON3_5722)
16845 tp->phy_flags |= TG3_PHYFLG_JITTER_BUG;
16846 if (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5755M)
16847 tp->phy_flags |= TG3_PHYFLG_ADJUST_TRIM;
16848 } else
16849 tp->phy_flags |= TG3_PHYFLG_BER_BUG;
16850 }
16851
16852 if (tg3_asic_rev(tp) == ASIC_REV_5784 &&
16853 tg3_chip_rev(tp) != CHIPREV_5784_AX) {
16854 tp->phy_otp = tg3_read_otp_phycfg(tp);
16855 if (tp->phy_otp == 0)
16856 tp->phy_otp = TG3_OTP_DEFAULT;
16857 }
16858
16859 if (tg3_flag(tp, CPMU_PRESENT))
16860 tp->mi_mode = MAC_MI_MODE_500KHZ_CONST;
16861 else
16862 tp->mi_mode = MAC_MI_MODE_BASE;
16863
16864 tp->coalesce_mode = 0;
16865 if (tg3_chip_rev(tp) != CHIPREV_5700_AX &&
16866 tg3_chip_rev(tp) != CHIPREV_5700_BX)
16867 tp->coalesce_mode |= HOSTCC_MODE_32BYTE;
16868
16869 /* Set these bits to enable statistics workaround. */
16870 if (tg3_asic_rev(tp) == ASIC_REV_5717 ||
16871 tg3_asic_rev(tp) == ASIC_REV_5762 ||
16872 tg3_chip_rev_id(tp) == CHIPREV_ID_5719_A0 ||
16873 tg3_chip_rev_id(tp) == CHIPREV_ID_5720_A0) {
16874 tp->coalesce_mode |= HOSTCC_MODE_ATTN;
16875 tp->grc_mode |= GRC_MODE_IRQ_ON_FLOW_ATTN;
16876 }
16877
16878 if (tg3_asic_rev(tp) == ASIC_REV_5785 ||
16879 tg3_asic_rev(tp) == ASIC_REV_57780)
16880 tg3_flag_set(tp, USE_PHYLIB);
16881
16882 err = tg3_mdio_init(tp);
16883 if (err)
16884 return err;
16885
16886 /* Initialize data/descriptor byte/word swapping. */
16887 val = tr32(GRC_MODE);
16888 if (tg3_asic_rev(tp) == ASIC_REV_5720 ||
16889 tg3_asic_rev(tp) == ASIC_REV_5762)
16890 val &= (GRC_MODE_BYTE_SWAP_B2HRX_DATA |
16891 GRC_MODE_WORD_SWAP_B2HRX_DATA |
16892 GRC_MODE_B2HRX_ENABLE |
16893 GRC_MODE_HTX2B_ENABLE |
16894 GRC_MODE_HOST_STACKUP);
16895 else
16896 val &= GRC_MODE_HOST_STACKUP;
16897
16898 tw32(GRC_MODE, val | tp->grc_mode);
16899
16900 tg3_switch_clocks(tp);
16901
16902 /* Clear this out for sanity. */
16903 tw32(TG3PCI_MEM_WIN_BASE_ADDR, 0);
16904
16905 /* Clear TG3PCI_REG_BASE_ADDR to prevent hangs. */
16906 tw32(TG3PCI_REG_BASE_ADDR, 0);
16907
16908 pci_read_config_dword(dev: tp->pdev, TG3PCI_PCISTATE,
16909 val: &pci_state_reg);
16910 if ((pci_state_reg & PCISTATE_CONV_PCI_MODE) == 0 &&
16911 !tg3_flag(tp, PCIX_TARGET_HWBUG)) {
16912 if (tg3_chip_rev_id(tp) == CHIPREV_ID_5701_A0 ||
16913 tg3_chip_rev_id(tp) == CHIPREV_ID_5701_B0 ||
16914 tg3_chip_rev_id(tp) == CHIPREV_ID_5701_B2 ||
16915 tg3_chip_rev_id(tp) == CHIPREV_ID_5701_B5) {
16916 void __iomem *sram_base;
16917
16918 /* Write some dummy words into the SRAM status block
16919 * area, see if it reads back correctly. If the return
16920 * value is bad, force enable the PCIX workaround.
16921 */
16922 sram_base = tp->regs + NIC_SRAM_WIN_BASE + NIC_SRAM_STATS_BLK;
16923
16924 writel(val: 0x00000000, addr: sram_base);
16925 writel(val: 0x00000000, addr: sram_base + 4);
16926 writel(val: 0xffffffff, addr: sram_base + 4);
16927 if (readl(addr: sram_base) != 0x00000000)
16928 tg3_flag_set(tp, PCIX_TARGET_HWBUG);
16929 }
16930 }
16931
16932 udelay(usec: 50);
16933 tg3_nvram_init(tp);
16934
16935 /* If the device has an NVRAM, no need to load patch firmware */
16936 if (tg3_asic_rev(tp) == ASIC_REV_57766 &&
16937 !tg3_flag(tp, NO_NVRAM))
16938 tp->fw_needed = NULL;
16939
16940 grc_misc_cfg = tr32(GRC_MISC_CFG);
16941 grc_misc_cfg &= GRC_MISC_CFG_BOARD_ID_MASK;
16942
16943 if (tg3_asic_rev(tp) == ASIC_REV_5705 &&
16944 (grc_misc_cfg == GRC_MISC_CFG_BOARD_ID_5788 ||
16945 grc_misc_cfg == GRC_MISC_CFG_BOARD_ID_5788M))
16946 tg3_flag_set(tp, IS_5788);
16947
16948 if (!tg3_flag(tp, IS_5788) &&
16949 tg3_asic_rev(tp) != ASIC_REV_5700)
16950 tg3_flag_set(tp, TAGGED_STATUS);
16951 if (tg3_flag(tp, TAGGED_STATUS)) {
16952 tp->coalesce_mode |= (HOSTCC_MODE_CLRTICK_RXBD |
16953 HOSTCC_MODE_CLRTICK_TXBD);
16954
16955 tp->misc_host_ctrl |= MISC_HOST_CTRL_TAGGED_STATUS;
16956 pci_write_config_dword(dev: tp->pdev, TG3PCI_MISC_HOST_CTRL,
16957 val: tp->misc_host_ctrl);
16958 }
16959
16960 /* Preserve the APE MAC_MODE bits */
16961 if (tg3_flag(tp, ENABLE_APE))
16962 tp->mac_mode = MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN;
16963 else
16964 tp->mac_mode = 0;
16965
16966 if (tg3_10_100_only_device(tp, ent))
16967 tp->phy_flags |= TG3_PHYFLG_10_100_ONLY;
16968
16969 err = tg3_phy_probe(tp);
16970 if (err) {
16971 dev_err(&tp->pdev->dev, "phy probe failed, err %d\n", err);
16972 /* ... but do not return immediately ... */
16973 tg3_mdio_fini(tp);
16974 }
16975
16976 tg3_read_vpd(tp);
16977 tg3_read_fw_ver(tp);
16978
16979 if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES) {
16980 tp->phy_flags &= ~TG3_PHYFLG_USE_MI_INTERRUPT;
16981 } else {
16982 if (tg3_asic_rev(tp) == ASIC_REV_5700)
16983 tp->phy_flags |= TG3_PHYFLG_USE_MI_INTERRUPT;
16984 else
16985 tp->phy_flags &= ~TG3_PHYFLG_USE_MI_INTERRUPT;
16986 }
16987
16988 /* 5700 {AX,BX} chips have a broken status block link
16989 * change bit implementation, so we must use the
16990 * status register in those cases.
16991 */
16992 if (tg3_asic_rev(tp) == ASIC_REV_5700)
16993 tg3_flag_set(tp, USE_LINKCHG_REG);
16994 else
16995 tg3_flag_clear(tp, USE_LINKCHG_REG);
16996
16997 /* The led_ctrl is set during tg3_phy_probe, here we might
16998 * have to force the link status polling mechanism based
16999 * upon subsystem IDs.
17000 */
17001 if (tp->pdev->subsystem_vendor == PCI_VENDOR_ID_DELL &&
17002 tg3_asic_rev(tp) == ASIC_REV_5701 &&
17003 !(tp->phy_flags & TG3_PHYFLG_PHY_SERDES)) {
17004 tp->phy_flags |= TG3_PHYFLG_USE_MI_INTERRUPT;
17005 tg3_flag_set(tp, USE_LINKCHG_REG);
17006 }
17007
17008 /* For all SERDES we poll the MAC status register. */
17009 if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES)
17010 tg3_flag_set(tp, POLL_SERDES);
17011 else
17012 tg3_flag_clear(tp, POLL_SERDES);
17013
17014 if (tg3_flag(tp, ENABLE_APE) && tg3_flag(tp, ENABLE_ASF))
17015 tg3_flag_set(tp, POLL_CPMU_LINK);
17016
17017 tp->rx_offset = NET_SKB_PAD + NET_IP_ALIGN;
17018 tp->rx_copy_thresh = TG3_RX_COPY_THRESHOLD;
17019 if (tg3_asic_rev(tp) == ASIC_REV_5701 &&
17020 tg3_flag(tp, PCIX_MODE)) {
17021 tp->rx_offset = NET_SKB_PAD;
17022#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
17023 tp->rx_copy_thresh = ~(u16)0;
17024#endif
17025 }
17026
17027 tp->rx_std_ring_mask = TG3_RX_STD_RING_SIZE(tp) - 1;
17028 tp->rx_jmb_ring_mask = TG3_RX_JMB_RING_SIZE(tp) - 1;
17029 tp->rx_ret_ring_mask = tg3_rx_ret_ring_size(tp) - 1;
17030
17031 tp->rx_std_max_post = tp->rx_std_ring_mask + 1;
17032
17033 /* Increment the rx prod index on the rx std ring by at most
17034 * 8 for these chips to workaround hw errata.
17035 */
17036 if (tg3_asic_rev(tp) == ASIC_REV_5750 ||
17037 tg3_asic_rev(tp) == ASIC_REV_5752 ||
17038 tg3_asic_rev(tp) == ASIC_REV_5755)
17039 tp->rx_std_max_post = 8;
17040
17041 if (tg3_flag(tp, ASPM_WORKAROUND))
17042 tp->pwrmgmt_thresh = tr32(PCIE_PWR_MGMT_THRESH) &
17043 PCIE_PWR_MGMT_L1_THRESH_MSK;
17044
17045 return err;
17046}
17047
17048static int tg3_get_device_address(struct tg3 *tp, u8 *addr)
17049{
17050 u32 hi, lo, mac_offset;
17051 int addr_ok = 0;
17052 int err;
17053
17054 if (!eth_platform_get_mac_address(dev: &tp->pdev->dev, mac_addr: addr))
17055 return 0;
17056
17057 if (tg3_flag(tp, IS_SSB_CORE)) {
17058 err = ssb_gige_get_macaddr(pdev: tp->pdev, macaddr: addr);
17059 if (!err && is_valid_ether_addr(addr))
17060 return 0;
17061 }
17062
17063 mac_offset = 0x7c;
17064 if (tg3_asic_rev(tp) == ASIC_REV_5704 ||
17065 tg3_flag(tp, 5780_CLASS)) {
17066 if (tr32(TG3PCI_DUAL_MAC_CTRL) & DUAL_MAC_CTRL_ID)
17067 mac_offset = 0xcc;
17068 if (tg3_nvram_lock(tp))
17069 tw32_f(NVRAM_CMD, NVRAM_CMD_RESET);
17070 else
17071 tg3_nvram_unlock(tp);
17072 } else if (tg3_flag(tp, 5717_PLUS)) {
17073 if (tp->pci_fn & 1)
17074 mac_offset = 0xcc;
17075 if (tp->pci_fn > 1)
17076 mac_offset += 0x18c;
17077 } else if (tg3_asic_rev(tp) == ASIC_REV_5906)
17078 mac_offset = 0x10;
17079
17080 /* First try to get it from MAC address mailbox. */
17081 tg3_read_mem(tp, NIC_SRAM_MAC_ADDR_HIGH_MBOX, val: &hi);
17082 if ((hi >> 16) == 0x484b) {
17083 addr[0] = (hi >> 8) & 0xff;
17084 addr[1] = (hi >> 0) & 0xff;
17085
17086 tg3_read_mem(tp, NIC_SRAM_MAC_ADDR_LOW_MBOX, val: &lo);
17087 addr[2] = (lo >> 24) & 0xff;
17088 addr[3] = (lo >> 16) & 0xff;
17089 addr[4] = (lo >> 8) & 0xff;
17090 addr[5] = (lo >> 0) & 0xff;
17091
17092 /* Some old bootcode may report a 0 MAC address in SRAM */
17093 addr_ok = is_valid_ether_addr(addr);
17094 }
17095 if (!addr_ok) {
17096 __be32 be_hi, be_lo;
17097
17098 /* Next, try NVRAM. */
17099 if (!tg3_flag(tp, NO_NVRAM) &&
17100 !tg3_nvram_read_be32(tp, offset: mac_offset + 0, val: &be_hi) &&
17101 !tg3_nvram_read_be32(tp, offset: mac_offset + 4, val: &be_lo)) {
17102 memcpy(to: &addr[0], from: ((char *)&be_hi) + 2, len: 2);
17103 memcpy(to: &addr[2], from: (char *)&be_lo, len: sizeof(be_lo));
17104 }
17105 /* Finally just fetch it out of the MAC control regs. */
17106 else {
17107 hi = tr32(MAC_ADDR_0_HIGH);
17108 lo = tr32(MAC_ADDR_0_LOW);
17109
17110 addr[5] = lo & 0xff;
17111 addr[4] = (lo >> 8) & 0xff;
17112 addr[3] = (lo >> 16) & 0xff;
17113 addr[2] = (lo >> 24) & 0xff;
17114 addr[1] = hi & 0xff;
17115 addr[0] = (hi >> 8) & 0xff;
17116 }
17117 }
17118
17119 if (!is_valid_ether_addr(addr))
17120 return -EINVAL;
17121 return 0;
17122}
17123
17124#define BOUNDARY_SINGLE_CACHELINE 1
17125#define BOUNDARY_MULTI_CACHELINE 2
17126
17127static u32 tg3_calc_dma_bndry(struct tg3 *tp, u32 val)
17128{
17129 int cacheline_size;
17130 u8 byte;
17131 int goal;
17132
17133 pci_read_config_byte(dev: tp->pdev, PCI_CACHE_LINE_SIZE, val: &byte);
17134 if (byte == 0)
17135 cacheline_size = 1024;
17136 else
17137 cacheline_size = (int) byte * 4;
17138
17139 /* On 5703 and later chips, the boundary bits have no
17140 * effect.
17141 */
17142 if (tg3_asic_rev(tp) != ASIC_REV_5700 &&
17143 tg3_asic_rev(tp) != ASIC_REV_5701 &&
17144 !tg3_flag(tp, PCI_EXPRESS))
17145 goto out;
17146
17147#if defined(CONFIG_PPC64) || defined(CONFIG_PARISC)
17148 goal = BOUNDARY_MULTI_CACHELINE;
17149#else
17150#if defined(CONFIG_SPARC64) || defined(CONFIG_ALPHA)
17151 goal = BOUNDARY_SINGLE_CACHELINE;
17152#else
17153 goal = 0;
17154#endif
17155#endif
17156
17157 if (tg3_flag(tp, 57765_PLUS)) {
17158 val = goal ? 0 : DMA_RWCTRL_DIS_CACHE_ALIGNMENT;
17159 goto out;
17160 }
17161
17162 if (!goal)
17163 goto out;
17164
17165 /* PCI controllers on most RISC systems tend to disconnect
17166 * when a device tries to burst across a cache-line boundary.
17167 * Therefore, letting tg3 do so just wastes PCI bandwidth.
17168 *
17169 * Unfortunately, for PCI-E there are only limited
17170 * write-side controls for this, and thus for reads
17171 * we will still get the disconnects. We'll also waste
17172 * these PCI cycles for both read and write for chips
17173 * other than 5700 and 5701 which do not implement the
17174 * boundary bits.
17175 */
17176 if (tg3_flag(tp, PCIX_MODE) && !tg3_flag(tp, PCI_EXPRESS)) {
17177 switch (cacheline_size) {
17178 case 16:
17179 case 32:
17180 case 64:
17181 case 128:
17182 if (goal == BOUNDARY_SINGLE_CACHELINE) {
17183 val |= (DMA_RWCTRL_READ_BNDRY_128_PCIX |
17184 DMA_RWCTRL_WRITE_BNDRY_128_PCIX);
17185 } else {
17186 val |= (DMA_RWCTRL_READ_BNDRY_384_PCIX |
17187 DMA_RWCTRL_WRITE_BNDRY_384_PCIX);
17188 }
17189 break;
17190
17191 case 256:
17192 val |= (DMA_RWCTRL_READ_BNDRY_256_PCIX |
17193 DMA_RWCTRL_WRITE_BNDRY_256_PCIX);
17194 break;
17195
17196 default:
17197 val |= (DMA_RWCTRL_READ_BNDRY_384_PCIX |
17198 DMA_RWCTRL_WRITE_BNDRY_384_PCIX);
17199 break;
17200 }
17201 } else if (tg3_flag(tp, PCI_EXPRESS)) {
17202 switch (cacheline_size) {
17203 case 16:
17204 case 32:
17205 case 64:
17206 if (goal == BOUNDARY_SINGLE_CACHELINE) {
17207 val &= ~DMA_RWCTRL_WRITE_BNDRY_DISAB_PCIE;
17208 val |= DMA_RWCTRL_WRITE_BNDRY_64_PCIE;
17209 break;
17210 }
17211 fallthrough;
17212 case 128:
17213 default:
17214 val &= ~DMA_RWCTRL_WRITE_BNDRY_DISAB_PCIE;
17215 val |= DMA_RWCTRL_WRITE_BNDRY_128_PCIE;
17216 break;
17217 }
17218 } else {
17219 switch (cacheline_size) {
17220 case 16:
17221 if (goal == BOUNDARY_SINGLE_CACHELINE) {
17222 val |= (DMA_RWCTRL_READ_BNDRY_16 |
17223 DMA_RWCTRL_WRITE_BNDRY_16);
17224 break;
17225 }
17226 fallthrough;
17227 case 32:
17228 if (goal == BOUNDARY_SINGLE_CACHELINE) {
17229 val |= (DMA_RWCTRL_READ_BNDRY_32 |
17230 DMA_RWCTRL_WRITE_BNDRY_32);
17231 break;
17232 }
17233 fallthrough;
17234 case 64:
17235 if (goal == BOUNDARY_SINGLE_CACHELINE) {
17236 val |= (DMA_RWCTRL_READ_BNDRY_64 |
17237 DMA_RWCTRL_WRITE_BNDRY_64);
17238 break;
17239 }
17240 fallthrough;
17241 case 128:
17242 if (goal == BOUNDARY_SINGLE_CACHELINE) {
17243 val |= (DMA_RWCTRL_READ_BNDRY_128 |
17244 DMA_RWCTRL_WRITE_BNDRY_128);
17245 break;
17246 }
17247 fallthrough;
17248 case 256:
17249 val |= (DMA_RWCTRL_READ_BNDRY_256 |
17250 DMA_RWCTRL_WRITE_BNDRY_256);
17251 break;
17252 case 512:
17253 val |= (DMA_RWCTRL_READ_BNDRY_512 |
17254 DMA_RWCTRL_WRITE_BNDRY_512);
17255 break;
17256 case 1024:
17257 default:
17258 val |= (DMA_RWCTRL_READ_BNDRY_1024 |
17259 DMA_RWCTRL_WRITE_BNDRY_1024);
17260 break;
17261 }
17262 }
17263
17264out:
17265 return val;
17266}
17267
17268static int tg3_do_test_dma(struct tg3 *tp, u32 *buf, dma_addr_t buf_dma,
17269 int size, bool to_device)
17270{
17271 struct tg3_internal_buffer_desc test_desc;
17272 u32 sram_dma_descs;
17273 int i, ret;
17274
17275 sram_dma_descs = NIC_SRAM_DMA_DESC_POOL_BASE;
17276
17277 tw32(FTQ_RCVBD_COMP_FIFO_ENQDEQ, 0);
17278 tw32(FTQ_RCVDATA_COMP_FIFO_ENQDEQ, 0);
17279 tw32(RDMAC_STATUS, 0);
17280 tw32(WDMAC_STATUS, 0);
17281
17282 tw32(BUFMGR_MODE, 0);
17283 tw32(FTQ_RESET, 0);
17284
17285 test_desc.addr_hi = ((u64) buf_dma) >> 32;
17286 test_desc.addr_lo = buf_dma & 0xffffffff;
17287 test_desc.nic_mbuf = 0x00002100;
17288 test_desc.len = size;
17289
17290 /*
17291 * HP ZX1 was seeing test failures for 5701 cards running at 33Mhz
17292 * the *second* time the tg3 driver was getting loaded after an
17293 * initial scan.
17294 *
17295 * Broadcom tells me:
17296 * ...the DMA engine is connected to the GRC block and a DMA
17297 * reset may affect the GRC block in some unpredictable way...
17298 * The behavior of resets to individual blocks has not been tested.
17299 *
17300 * Broadcom noted the GRC reset will also reset all sub-components.
17301 */
17302 if (to_device) {
17303 test_desc.cqid_sqid = (13 << 8) | 2;
17304
17305 tw32_f(RDMAC_MODE, RDMAC_MODE_ENABLE);
17306 udelay(usec: 40);
17307 } else {
17308 test_desc.cqid_sqid = (16 << 8) | 7;
17309
17310 tw32_f(WDMAC_MODE, WDMAC_MODE_ENABLE);
17311 udelay(usec: 40);
17312 }
17313 test_desc.flags = 0x00000005;
17314
17315 for (i = 0; i < (sizeof(test_desc) / sizeof(u32)); i++) {
17316 u32 val;
17317
17318 val = *(((u32 *)&test_desc) + i);
17319 pci_write_config_dword(dev: tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR,
17320 val: sram_dma_descs + (i * sizeof(u32)));
17321 pci_write_config_dword(dev: tp->pdev, TG3PCI_MEM_WIN_DATA, val);
17322 }
17323 pci_write_config_dword(dev: tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, val: 0);
17324
17325 if (to_device)
17326 tw32(FTQ_DMA_HIGH_READ_FIFO_ENQDEQ, sram_dma_descs);
17327 else
17328 tw32(FTQ_DMA_HIGH_WRITE_FIFO_ENQDEQ, sram_dma_descs);
17329
17330 ret = -ENODEV;
17331 for (i = 0; i < 40; i++) {
17332 u32 val;
17333
17334 if (to_device)
17335 val = tr32(FTQ_RCVBD_COMP_FIFO_ENQDEQ);
17336 else
17337 val = tr32(FTQ_RCVDATA_COMP_FIFO_ENQDEQ);
17338 if ((val & 0xffff) == sram_dma_descs) {
17339 ret = 0;
17340 break;
17341 }
17342
17343 udelay(usec: 100);
17344 }
17345
17346 return ret;
17347}
17348
17349#define TEST_BUFFER_SIZE 0x2000
17350
17351static const struct pci_device_id tg3_dma_wait_state_chipsets[] = {
17352 { PCI_DEVICE(PCI_VENDOR_ID_APPLE, PCI_DEVICE_ID_APPLE_UNI_N_PCI15) },
17353 { },
17354};
17355
17356static int tg3_test_dma(struct tg3 *tp)
17357{
17358 dma_addr_t buf_dma;
17359 u32 *buf, saved_dma_rwctrl;
17360 int ret = 0;
17361
17362 buf = dma_alloc_coherent(dev: &tp->pdev->dev, TEST_BUFFER_SIZE,
17363 dma_handle: &buf_dma, GFP_KERNEL);
17364 if (!buf) {
17365 ret = -ENOMEM;
17366 goto out_nofree;
17367 }
17368
17369 tp->dma_rwctrl = ((0x7 << DMA_RWCTRL_PCI_WRITE_CMD_SHIFT) |
17370 (0x6 << DMA_RWCTRL_PCI_READ_CMD_SHIFT));
17371
17372 tp->dma_rwctrl = tg3_calc_dma_bndry(tp, val: tp->dma_rwctrl);
17373
17374 if (tg3_flag(tp, 57765_PLUS))
17375 goto out;
17376
17377 if (tg3_flag(tp, PCI_EXPRESS)) {
17378 /* DMA read watermark not used on PCIE */
17379 tp->dma_rwctrl |= 0x00180000;
17380 } else if (!tg3_flag(tp, PCIX_MODE)) {
17381 if (tg3_asic_rev(tp) == ASIC_REV_5705 ||
17382 tg3_asic_rev(tp) == ASIC_REV_5750)
17383 tp->dma_rwctrl |= 0x003f0000;
17384 else
17385 tp->dma_rwctrl |= 0x003f000f;
17386 } else {
17387 if (tg3_asic_rev(tp) == ASIC_REV_5703 ||
17388 tg3_asic_rev(tp) == ASIC_REV_5704) {
17389 u32 ccval = (tr32(TG3PCI_CLOCK_CTRL) & 0x1f);
17390 u32 read_water = 0x7;
17391
17392 /* If the 5704 is behind the EPB bridge, we can
17393 * do the less restrictive ONE_DMA workaround for
17394 * better performance.
17395 */
17396 if (tg3_flag(tp, 40BIT_DMA_BUG) &&
17397 tg3_asic_rev(tp) == ASIC_REV_5704)
17398 tp->dma_rwctrl |= 0x8000;
17399 else if (ccval == 0x6 || ccval == 0x7)
17400 tp->dma_rwctrl |= DMA_RWCTRL_ONE_DMA;
17401
17402 if (tg3_asic_rev(tp) == ASIC_REV_5703)
17403 read_water = 4;
17404 /* Set bit 23 to enable PCIX hw bug fix */
17405 tp->dma_rwctrl |=
17406 (read_water << DMA_RWCTRL_READ_WATER_SHIFT) |
17407 (0x3 << DMA_RWCTRL_WRITE_WATER_SHIFT) |
17408 (1 << 23);
17409 } else if (tg3_asic_rev(tp) == ASIC_REV_5780) {
17410 /* 5780 always in PCIX mode */
17411 tp->dma_rwctrl |= 0x00144000;
17412 } else if (tg3_asic_rev(tp) == ASIC_REV_5714) {
17413 /* 5714 always in PCIX mode */
17414 tp->dma_rwctrl |= 0x00148000;
17415 } else {
17416 tp->dma_rwctrl |= 0x001b000f;
17417 }
17418 }
17419 if (tg3_flag(tp, ONE_DMA_AT_ONCE))
17420 tp->dma_rwctrl |= DMA_RWCTRL_ONE_DMA;
17421
17422 if (tg3_asic_rev(tp) == ASIC_REV_5703 ||
17423 tg3_asic_rev(tp) == ASIC_REV_5704)
17424 tp->dma_rwctrl &= 0xfffffff0;
17425
17426 if (tg3_asic_rev(tp) == ASIC_REV_5700 ||
17427 tg3_asic_rev(tp) == ASIC_REV_5701) {
17428 /* Remove this if it causes problems for some boards. */
17429 tp->dma_rwctrl |= DMA_RWCTRL_USE_MEM_READ_MULT;
17430
17431 /* On 5700/5701 chips, we need to set this bit.
17432 * Otherwise the chip will issue cacheline transactions
17433 * to streamable DMA memory with not all the byte
17434 * enables turned on. This is an error on several
17435 * RISC PCI controllers, in particular sparc64.
17436 *
17437 * On 5703/5704 chips, this bit has been reassigned
17438 * a different meaning. In particular, it is used
17439 * on those chips to enable a PCI-X workaround.
17440 */
17441 tp->dma_rwctrl |= DMA_RWCTRL_ASSERT_ALL_BE;
17442 }
17443
17444 tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
17445
17446
17447 if (tg3_asic_rev(tp) != ASIC_REV_5700 &&
17448 tg3_asic_rev(tp) != ASIC_REV_5701)
17449 goto out;
17450
17451 /* It is best to perform DMA test with maximum write burst size
17452 * to expose the 5700/5701 write DMA bug.
17453 */
17454 saved_dma_rwctrl = tp->dma_rwctrl;
17455 tp->dma_rwctrl &= ~DMA_RWCTRL_WRITE_BNDRY_MASK;
17456 tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
17457
17458 while (1) {
17459 u32 *p = buf, i;
17460
17461 for (i = 0; i < TEST_BUFFER_SIZE / sizeof(u32); i++)
17462 p[i] = i;
17463
17464 /* Send the buffer to the chip. */
17465 ret = tg3_do_test_dma(tp, buf, buf_dma, TEST_BUFFER_SIZE, to_device: true);
17466 if (ret) {
17467 dev_err(&tp->pdev->dev,
17468 "%s: Buffer write failed. err = %d\n",
17469 __func__, ret);
17470 break;
17471 }
17472
17473 /* Now read it back. */
17474 ret = tg3_do_test_dma(tp, buf, buf_dma, TEST_BUFFER_SIZE, to_device: false);
17475 if (ret) {
17476 dev_err(&tp->pdev->dev, "%s: Buffer read failed. "
17477 "err = %d\n", __func__, ret);
17478 break;
17479 }
17480
17481 /* Verify it. */
17482 for (i = 0; i < TEST_BUFFER_SIZE / sizeof(u32); i++) {
17483 if (p[i] == i)
17484 continue;
17485
17486 if ((tp->dma_rwctrl & DMA_RWCTRL_WRITE_BNDRY_MASK) !=
17487 DMA_RWCTRL_WRITE_BNDRY_16) {
17488 tp->dma_rwctrl &= ~DMA_RWCTRL_WRITE_BNDRY_MASK;
17489 tp->dma_rwctrl |= DMA_RWCTRL_WRITE_BNDRY_16;
17490 tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
17491 break;
17492 } else {
17493 dev_err(&tp->pdev->dev,
17494 "%s: Buffer corrupted on read back! "
17495 "(%d != %d)\n", __func__, p[i], i);
17496 ret = -ENODEV;
17497 goto out;
17498 }
17499 }
17500
17501 if (i == (TEST_BUFFER_SIZE / sizeof(u32))) {
17502 /* Success. */
17503 ret = 0;
17504 break;
17505 }
17506 }
17507 if ((tp->dma_rwctrl & DMA_RWCTRL_WRITE_BNDRY_MASK) !=
17508 DMA_RWCTRL_WRITE_BNDRY_16) {
17509 /* DMA test passed without adjusting DMA boundary,
17510 * now look for chipsets that are known to expose the
17511 * DMA bug without failing the test.
17512 */
17513 if (pci_dev_present(ids: tg3_dma_wait_state_chipsets)) {
17514 tp->dma_rwctrl &= ~DMA_RWCTRL_WRITE_BNDRY_MASK;
17515 tp->dma_rwctrl |= DMA_RWCTRL_WRITE_BNDRY_16;
17516 } else {
17517 /* Safe to use the calculated DMA boundary. */
17518 tp->dma_rwctrl = saved_dma_rwctrl;
17519 }
17520
17521 tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
17522 }
17523
17524out:
17525 dma_free_coherent(dev: &tp->pdev->dev, TEST_BUFFER_SIZE, cpu_addr: buf, dma_handle: buf_dma);
17526out_nofree:
17527 return ret;
17528}
17529
17530static void tg3_init_bufmgr_config(struct tg3 *tp)
17531{
17532 if (tg3_flag(tp, 57765_PLUS)) {
17533 tp->bufmgr_config.mbuf_read_dma_low_water =
17534 DEFAULT_MB_RDMA_LOW_WATER_5705;
17535 tp->bufmgr_config.mbuf_mac_rx_low_water =
17536 DEFAULT_MB_MACRX_LOW_WATER_57765;
17537 tp->bufmgr_config.mbuf_high_water =
17538 DEFAULT_MB_HIGH_WATER_57765;
17539
17540 tp->bufmgr_config.mbuf_read_dma_low_water_jumbo =
17541 DEFAULT_MB_RDMA_LOW_WATER_5705;
17542 tp->bufmgr_config.mbuf_mac_rx_low_water_jumbo =
17543 DEFAULT_MB_MACRX_LOW_WATER_JUMBO_57765;
17544 tp->bufmgr_config.mbuf_high_water_jumbo =
17545 DEFAULT_MB_HIGH_WATER_JUMBO_57765;
17546 } else if (tg3_flag(tp, 5705_PLUS)) {
17547 tp->bufmgr_config.mbuf_read_dma_low_water =
17548 DEFAULT_MB_RDMA_LOW_WATER_5705;
17549 tp->bufmgr_config.mbuf_mac_rx_low_water =
17550 DEFAULT_MB_MACRX_LOW_WATER_5705;
17551 tp->bufmgr_config.mbuf_high_water =
17552 DEFAULT_MB_HIGH_WATER_5705;
17553 if (tg3_asic_rev(tp) == ASIC_REV_5906) {
17554 tp->bufmgr_config.mbuf_mac_rx_low_water =
17555 DEFAULT_MB_MACRX_LOW_WATER_5906;
17556 tp->bufmgr_config.mbuf_high_water =
17557 DEFAULT_MB_HIGH_WATER_5906;
17558 }
17559
17560 tp->bufmgr_config.mbuf_read_dma_low_water_jumbo =
17561 DEFAULT_MB_RDMA_LOW_WATER_JUMBO_5780;
17562 tp->bufmgr_config.mbuf_mac_rx_low_water_jumbo =
17563 DEFAULT_MB_MACRX_LOW_WATER_JUMBO_5780;
17564 tp->bufmgr_config.mbuf_high_water_jumbo =
17565 DEFAULT_MB_HIGH_WATER_JUMBO_5780;
17566 } else {
17567 tp->bufmgr_config.mbuf_read_dma_low_water =
17568 DEFAULT_MB_RDMA_LOW_WATER;
17569 tp->bufmgr_config.mbuf_mac_rx_low_water =
17570 DEFAULT_MB_MACRX_LOW_WATER;
17571 tp->bufmgr_config.mbuf_high_water =
17572 DEFAULT_MB_HIGH_WATER;
17573
17574 tp->bufmgr_config.mbuf_read_dma_low_water_jumbo =
17575 DEFAULT_MB_RDMA_LOW_WATER_JUMBO;
17576 tp->bufmgr_config.mbuf_mac_rx_low_water_jumbo =
17577 DEFAULT_MB_MACRX_LOW_WATER_JUMBO;
17578 tp->bufmgr_config.mbuf_high_water_jumbo =
17579 DEFAULT_MB_HIGH_WATER_JUMBO;
17580 }
17581
17582 tp->bufmgr_config.dma_low_water = DEFAULT_DMA_LOW_WATER;
17583 tp->bufmgr_config.dma_high_water = DEFAULT_DMA_HIGH_WATER;
17584}
17585
17586static char *tg3_phy_string(struct tg3 *tp)
17587{
17588 switch (tp->phy_id & TG3_PHY_ID_MASK) {
17589 case TG3_PHY_ID_BCM5400: return "5400";
17590 case TG3_PHY_ID_BCM5401: return "5401";
17591 case TG3_PHY_ID_BCM5411: return "5411";
17592 case TG3_PHY_ID_BCM5701: return "5701";
17593 case TG3_PHY_ID_BCM5703: return "5703";
17594 case TG3_PHY_ID_BCM5704: return "5704";
17595 case TG3_PHY_ID_BCM5705: return "5705";
17596 case TG3_PHY_ID_BCM5750: return "5750";
17597 case TG3_PHY_ID_BCM5752: return "5752";
17598 case TG3_PHY_ID_BCM5714: return "5714";
17599 case TG3_PHY_ID_BCM5780: return "5780";
17600 case TG3_PHY_ID_BCM5755: return "5755";
17601 case TG3_PHY_ID_BCM5787: return "5787";
17602 case TG3_PHY_ID_BCM5784: return "5784";
17603 case TG3_PHY_ID_BCM5756: return "5722/5756";
17604 case TG3_PHY_ID_BCM5906: return "5906";
17605 case TG3_PHY_ID_BCM5761: return "5761";
17606 case TG3_PHY_ID_BCM5718C: return "5718C";
17607 case TG3_PHY_ID_BCM5718S: return "5718S";
17608 case TG3_PHY_ID_BCM57765: return "57765";
17609 case TG3_PHY_ID_BCM5719C: return "5719C";
17610 case TG3_PHY_ID_BCM5720C: return "5720C";
17611 case TG3_PHY_ID_BCM5762: return "5762C";
17612 case TG3_PHY_ID_BCM8002: return "8002/serdes";
17613 case 0: return "serdes";
17614 default: return "unknown";
17615 }
17616}
17617
17618static char *tg3_bus_string(struct tg3 *tp, char *str)
17619{
17620 if (tg3_flag(tp, PCI_EXPRESS)) {
17621 strcpy(str, "PCI Express");
17622 return str;
17623 } else if (tg3_flag(tp, PCIX_MODE)) {
17624 u32 clock_ctrl = tr32(TG3PCI_CLOCK_CTRL) & 0x1f;
17625
17626 strcpy(str, "PCIX:");
17627
17628 if ((clock_ctrl == 7) ||
17629 ((tr32(GRC_MISC_CFG) & GRC_MISC_CFG_BOARD_ID_MASK) ==
17630 GRC_MISC_CFG_BOARD_ID_5704CIOBE))
17631 strcat(str, "133MHz");
17632 else if (clock_ctrl == 0)
17633 strcat(str, "33MHz");
17634 else if (clock_ctrl == 2)
17635 strcat(str, "50MHz");
17636 else if (clock_ctrl == 4)
17637 strcat(str, "66MHz");
17638 else if (clock_ctrl == 6)
17639 strcat(str, "100MHz");
17640 } else {
17641 strcpy(str, "PCI:");
17642 if (tg3_flag(tp, PCI_HIGH_SPEED))
17643 strcat(str, "66MHz");
17644 else
17645 strcat(str, "33MHz");
17646 }
17647 if (tg3_flag(tp, PCI_32BIT))
17648 strcat(str, ":32-bit");
17649 else
17650 strcat(str, ":64-bit");
17651 return str;
17652}
17653
17654static void tg3_init_coal(struct tg3 *tp)
17655{
17656 struct ethtool_coalesce *ec = &tp->coal;
17657
17658 memset(s: ec, c: 0, n: sizeof(*ec));
17659 ec->cmd = ETHTOOL_GCOALESCE;
17660 ec->rx_coalesce_usecs = LOW_RXCOL_TICKS;
17661 ec->tx_coalesce_usecs = LOW_TXCOL_TICKS;
17662 ec->rx_max_coalesced_frames = LOW_RXMAX_FRAMES;
17663 ec->tx_max_coalesced_frames = LOW_TXMAX_FRAMES;
17664 ec->rx_coalesce_usecs_irq = DEFAULT_RXCOAL_TICK_INT;
17665 ec->tx_coalesce_usecs_irq = DEFAULT_TXCOAL_TICK_INT;
17666 ec->rx_max_coalesced_frames_irq = DEFAULT_RXCOAL_MAXF_INT;
17667 ec->tx_max_coalesced_frames_irq = DEFAULT_TXCOAL_MAXF_INT;
17668 ec->stats_block_coalesce_usecs = DEFAULT_STAT_COAL_TICKS;
17669
17670 if (tp->coalesce_mode & (HOSTCC_MODE_CLRTICK_RXBD |
17671 HOSTCC_MODE_CLRTICK_TXBD)) {
17672 ec->rx_coalesce_usecs = LOW_RXCOL_TICKS_CLRTCKS;
17673 ec->rx_coalesce_usecs_irq = DEFAULT_RXCOAL_TICK_INT_CLRTCKS;
17674 ec->tx_coalesce_usecs = LOW_TXCOL_TICKS_CLRTCKS;
17675 ec->tx_coalesce_usecs_irq = DEFAULT_TXCOAL_TICK_INT_CLRTCKS;
17676 }
17677
17678 if (tg3_flag(tp, 5705_PLUS)) {
17679 ec->rx_coalesce_usecs_irq = 0;
17680 ec->tx_coalesce_usecs_irq = 0;
17681 ec->stats_block_coalesce_usecs = 0;
17682 }
17683}
17684
17685static int tg3_init_one(struct pci_dev *pdev,
17686 const struct pci_device_id *ent)
17687{
17688 struct net_device *dev;
17689 struct tg3 *tp;
17690 int i, err;
17691 u32 sndmbx, rcvmbx, intmbx;
17692 char str[40];
17693 u64 dma_mask, persist_dma_mask;
17694 netdev_features_t features = 0;
17695 u8 addr[ETH_ALEN] __aligned(2);
17696
17697 err = pci_enable_device(dev: pdev);
17698 if (err) {
17699 dev_err(&pdev->dev, "Cannot enable PCI device, aborting\n");
17700 return err;
17701 }
17702
17703 err = pci_request_regions(pdev, DRV_MODULE_NAME);
17704 if (err) {
17705 dev_err(&pdev->dev, "Cannot obtain PCI resources, aborting\n");
17706 goto err_out_disable_pdev;
17707 }
17708
17709 pci_set_master(dev: pdev);
17710
17711 dev = alloc_etherdev_mq(sizeof(*tp), TG3_IRQ_MAX_VECS);
17712 if (!dev) {
17713 err = -ENOMEM;
17714 goto err_out_free_res;
17715 }
17716
17717 SET_NETDEV_DEV(dev, &pdev->dev);
17718
17719 tp = netdev_priv(dev);
17720 tp->pdev = pdev;
17721 tp->dev = dev;
17722 tp->rx_mode = TG3_DEF_RX_MODE;
17723 tp->tx_mode = TG3_DEF_TX_MODE;
17724 tp->irq_sync = 1;
17725 tp->pcierr_recovery = false;
17726
17727 if (tg3_debug > 0)
17728 tp->msg_enable = tg3_debug;
17729 else
17730 tp->msg_enable = TG3_DEF_MSG_ENABLE;
17731
17732 if (pdev_is_ssb_gige_core(pdev)) {
17733 tg3_flag_set(tp, IS_SSB_CORE);
17734 if (ssb_gige_must_flush_posted_writes(pdev))
17735 tg3_flag_set(tp, FLUSH_POSTED_WRITES);
17736 if (ssb_gige_one_dma_at_once(pdev))
17737 tg3_flag_set(tp, ONE_DMA_AT_ONCE);
17738 if (ssb_gige_have_roboswitch(pdev)) {
17739 tg3_flag_set(tp, USE_PHYLIB);
17740 tg3_flag_set(tp, ROBOSWITCH);
17741 }
17742 if (ssb_gige_is_rgmii(pdev))
17743 tg3_flag_set(tp, RGMII_MODE);
17744 }
17745
17746 /* The word/byte swap controls here control register access byte
17747 * swapping. DMA data byte swapping is controlled in the GRC_MODE
17748 * setting below.
17749 */
17750 tp->misc_host_ctrl =
17751 MISC_HOST_CTRL_MASK_PCI_INT |
17752 MISC_HOST_CTRL_WORD_SWAP |
17753 MISC_HOST_CTRL_INDIR_ACCESS |
17754 MISC_HOST_CTRL_PCISTATE_RW;
17755
17756 /* The NONFRM (non-frame) byte/word swap controls take effect
17757 * on descriptor entries, anything which isn't packet data.
17758 *
17759 * The StrongARM chips on the board (one for tx, one for rx)
17760 * are running in big-endian mode.
17761 */
17762 tp->grc_mode = (GRC_MODE_WSWAP_DATA | GRC_MODE_BSWAP_DATA |
17763 GRC_MODE_WSWAP_NONFRM_DATA);
17764#ifdef __BIG_ENDIAN
17765 tp->grc_mode |= GRC_MODE_BSWAP_NONFRM_DATA;
17766#endif
17767 spin_lock_init(&tp->lock);
17768 spin_lock_init(&tp->indirect_lock);
17769 INIT_WORK(&tp->reset_task, tg3_reset_task);
17770
17771 tp->regs = pci_ioremap_bar(pdev, BAR_0);
17772 if (!tp->regs) {
17773 dev_err(&pdev->dev, "Cannot map device registers, aborting\n");
17774 err = -ENOMEM;
17775 goto err_out_free_dev;
17776 }
17777
17778 if (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5761 ||
17779 tp->pdev->device == PCI_DEVICE_ID_TIGON3_5761E ||
17780 tp->pdev->device == TG3PCI_DEVICE_TIGON3_5761S ||
17781 tp->pdev->device == TG3PCI_DEVICE_TIGON3_5761SE ||
17782 tp->pdev->device == TG3PCI_DEVICE_TIGON3_5717 ||
17783 tp->pdev->device == TG3PCI_DEVICE_TIGON3_5717_C ||
17784 tp->pdev->device == TG3PCI_DEVICE_TIGON3_5718 ||
17785 tp->pdev->device == TG3PCI_DEVICE_TIGON3_5719 ||
17786 tp->pdev->device == TG3PCI_DEVICE_TIGON3_5720 ||
17787 tp->pdev->device == TG3PCI_DEVICE_TIGON3_57767 ||
17788 tp->pdev->device == TG3PCI_DEVICE_TIGON3_57764 ||
17789 tp->pdev->device == TG3PCI_DEVICE_TIGON3_5762 ||
17790 tp->pdev->device == TG3PCI_DEVICE_TIGON3_5725 ||
17791 tp->pdev->device == TG3PCI_DEVICE_TIGON3_5727 ||
17792 tp->pdev->device == TG3PCI_DEVICE_TIGON3_57787) {
17793 tg3_flag_set(tp, ENABLE_APE);
17794 tp->aperegs = pci_ioremap_bar(pdev, BAR_2);
17795 if (!tp->aperegs) {
17796 dev_err(&pdev->dev,
17797 "Cannot map APE registers, aborting\n");
17798 err = -ENOMEM;
17799 goto err_out_iounmap;
17800 }
17801 }
17802
17803 tp->rx_pending = TG3_DEF_RX_RING_PENDING;
17804 tp->rx_jumbo_pending = TG3_DEF_RX_JUMBO_RING_PENDING;
17805
17806 dev->ethtool_ops = &tg3_ethtool_ops;
17807 dev->watchdog_timeo = TG3_TX_TIMEOUT;
17808 dev->netdev_ops = &tg3_netdev_ops;
17809 dev->irq = pdev->irq;
17810
17811 err = tg3_get_invariants(tp, ent);
17812 if (err) {
17813 dev_err(&pdev->dev,
17814 "Problem fetching invariants of chip, aborting\n");
17815 goto err_out_apeunmap;
17816 }
17817
17818 /* The EPB bridge inside 5714, 5715, and 5780 and any
17819 * device behind the EPB cannot support DMA addresses > 40-bit.
17820 * On 64-bit systems with IOMMU, use 40-bit dma_mask.
17821 * On 64-bit systems without IOMMU, use 64-bit dma_mask and
17822 * do DMA address check in __tg3_start_xmit().
17823 */
17824 if (tg3_flag(tp, IS_5788))
17825 persist_dma_mask = dma_mask = DMA_BIT_MASK(32);
17826 else if (tg3_flag(tp, 40BIT_DMA_BUG)) {
17827 persist_dma_mask = dma_mask = DMA_BIT_MASK(40);
17828#ifdef CONFIG_HIGHMEM
17829 dma_mask = DMA_BIT_MASK(64);
17830#endif
17831 } else
17832 persist_dma_mask = dma_mask = DMA_BIT_MASK(64);
17833
17834 if (tg3_asic_rev(tp) == ASIC_REV_57766)
17835 persist_dma_mask = DMA_BIT_MASK(31);
17836
17837 /* Configure DMA attributes. */
17838 if (dma_mask > DMA_BIT_MASK(32)) {
17839 err = dma_set_mask(dev: &pdev->dev, mask: dma_mask);
17840 if (!err) {
17841 features |= NETIF_F_HIGHDMA;
17842 err = dma_set_coherent_mask(dev: &pdev->dev,
17843 mask: persist_dma_mask);
17844 if (err < 0) {
17845 dev_err(&pdev->dev, "Unable to obtain 64 bit "
17846 "DMA for consistent allocations\n");
17847 goto err_out_apeunmap;
17848 }
17849 }
17850 }
17851 if (err || dma_mask == DMA_BIT_MASK(32)) {
17852 err = dma_set_mask(dev: &pdev->dev, DMA_BIT_MASK(32));
17853 if (err) {
17854 dev_err(&pdev->dev,
17855 "No usable DMA configuration, aborting\n");
17856 goto err_out_apeunmap;
17857 }
17858 }
17859
17860 tg3_init_bufmgr_config(tp);
17861
17862 /* 5700 B0 chips do not support checksumming correctly due
17863 * to hardware bugs.
17864 */
17865 if (tg3_chip_rev_id(tp) != CHIPREV_ID_5700_B0) {
17866 features |= NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM;
17867
17868 if (tg3_flag(tp, 5755_PLUS))
17869 features |= NETIF_F_IPV6_CSUM;
17870 }
17871
17872 /* TSO is on by default on chips that support hardware TSO.
17873 * Firmware TSO on older chips gives lower performance, so it
17874 * is off by default, but can be enabled using ethtool.
17875 */
17876 if ((tg3_flag(tp, HW_TSO_1) ||
17877 tg3_flag(tp, HW_TSO_2) ||
17878 tg3_flag(tp, HW_TSO_3)) &&
17879 (features & NETIF_F_IP_CSUM))
17880 features |= NETIF_F_TSO;
17881 if (tg3_flag(tp, HW_TSO_2) || tg3_flag(tp, HW_TSO_3)) {
17882 if (features & NETIF_F_IPV6_CSUM)
17883 features |= NETIF_F_TSO6;
17884 if (tg3_flag(tp, HW_TSO_3) ||
17885 tg3_asic_rev(tp) == ASIC_REV_5761 ||
17886 (tg3_asic_rev(tp) == ASIC_REV_5784 &&
17887 tg3_chip_rev(tp) != CHIPREV_5784_AX) ||
17888 tg3_asic_rev(tp) == ASIC_REV_5785 ||
17889 tg3_asic_rev(tp) == ASIC_REV_57780)
17890 features |= NETIF_F_TSO_ECN;
17891 }
17892
17893 dev->features |= features | NETIF_F_HW_VLAN_CTAG_TX |
17894 NETIF_F_HW_VLAN_CTAG_RX;
17895 dev->vlan_features |= features;
17896
17897 /*
17898 * Add loopback capability only for a subset of devices that support
17899 * MAC-LOOPBACK. Eventually this need to be enhanced to allow INT-PHY
17900 * loopback for the remaining devices.
17901 */
17902 if (tg3_asic_rev(tp) != ASIC_REV_5780 &&
17903 !tg3_flag(tp, CPMU_PRESENT))
17904 /* Add the loopback capability */
17905 features |= NETIF_F_LOOPBACK;
17906
17907 dev->hw_features |= features;
17908 dev->priv_flags |= IFF_UNICAST_FLT;
17909
17910 /* MTU range: 60 - 9000 or 1500, depending on hardware */
17911 dev->min_mtu = TG3_MIN_MTU;
17912 dev->max_mtu = TG3_MAX_MTU(tp);
17913
17914 if (tg3_chip_rev_id(tp) == CHIPREV_ID_5705_A1 &&
17915 !tg3_flag(tp, TSO_CAPABLE) &&
17916 !(tr32(TG3PCI_PCISTATE) & PCISTATE_BUS_SPEED_HIGH)) {
17917 tg3_flag_set(tp, MAX_RXPEND_64);
17918 tp->rx_pending = 63;
17919 }
17920
17921 err = tg3_get_device_address(tp, addr);
17922 if (err) {
17923 dev_err(&pdev->dev,
17924 "Could not obtain valid ethernet address, aborting\n");
17925 goto err_out_apeunmap;
17926 }
17927 eth_hw_addr_set(dev, addr);
17928
17929 intmbx = MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW;
17930 rcvmbx = MAILBOX_RCVRET_CON_IDX_0 + TG3_64BIT_REG_LOW;
17931 sndmbx = MAILBOX_SNDHOST_PROD_IDX_0 + TG3_64BIT_REG_LOW;
17932 for (i = 0; i < tp->irq_max; i++) {
17933 struct tg3_napi *tnapi = &tp->napi[i];
17934
17935 tnapi->tp = tp;
17936 tnapi->tx_pending = TG3_DEF_TX_RING_PENDING;
17937
17938 tnapi->int_mbox = intmbx;
17939 intmbx += 0x8;
17940
17941 tnapi->consmbox = rcvmbx;
17942 tnapi->prodmbox = sndmbx;
17943
17944 if (i)
17945 tnapi->coal_now = HOSTCC_MODE_COAL_VEC1_NOW << (i - 1);
17946 else
17947 tnapi->coal_now = HOSTCC_MODE_NOW;
17948
17949 if (!tg3_flag(tp, SUPPORT_MSIX))
17950 break;
17951
17952 /*
17953 * If we support MSIX, we'll be using RSS. If we're using
17954 * RSS, the first vector only handles link interrupts and the
17955 * remaining vectors handle rx and tx interrupts. Reuse the
17956 * mailbox values for the next iteration. The values we setup
17957 * above are still useful for the single vectored mode.
17958 */
17959 if (!i)
17960 continue;
17961
17962 rcvmbx += 0x8;
17963
17964 if (sndmbx & 0x4)
17965 sndmbx -= 0x4;
17966 else
17967 sndmbx += 0xc;
17968 }
17969
17970 /*
17971 * Reset chip in case UNDI or EFI driver did not shutdown
17972 * DMA self test will enable WDMAC and we'll see (spurious)
17973 * pending DMA on the PCI bus at that point.
17974 */
17975 if ((tr32(HOSTCC_MODE) & HOSTCC_MODE_ENABLE) ||
17976 (tr32(WDMAC_MODE) & WDMAC_MODE_ENABLE)) {
17977 tg3_full_lock(tp, irq_sync: 0);
17978 tw32(MEMARB_MODE, MEMARB_MODE_ENABLE);
17979 tg3_halt(tp, RESET_KIND_SHUTDOWN, silent: 1);
17980 tg3_full_unlock(tp);
17981 }
17982
17983 err = tg3_test_dma(tp);
17984 if (err) {
17985 dev_err(&pdev->dev, "DMA engine test failed, aborting\n");
17986 goto err_out_apeunmap;
17987 }
17988
17989 tg3_init_coal(tp);
17990
17991 pci_set_drvdata(pdev, data: dev);
17992
17993 if (tg3_asic_rev(tp) == ASIC_REV_5719 ||
17994 tg3_asic_rev(tp) == ASIC_REV_5720 ||
17995 tg3_asic_rev(tp) == ASIC_REV_5762)
17996 tg3_flag_set(tp, PTP_CAPABLE);
17997
17998 tg3_timer_init(tp);
17999
18000 tg3_carrier_off(tp);
18001
18002 err = register_netdev(dev);
18003 if (err) {
18004 dev_err(&pdev->dev, "Cannot register net device, aborting\n");
18005 goto err_out_apeunmap;
18006 }
18007
18008 if (tg3_flag(tp, PTP_CAPABLE)) {
18009 tg3_ptp_init(tp);
18010 tp->ptp_clock = ptp_clock_register(info: &tp->ptp_info,
18011 parent: &tp->pdev->dev);
18012 if (IS_ERR(ptr: tp->ptp_clock))
18013 tp->ptp_clock = NULL;
18014 }
18015
18016 netdev_info(dev, format: "Tigon3 [partno(%s) rev %04x] (%s) MAC address %pM\n",
18017 tp->board_part_number,
18018 tg3_chip_rev_id(tp),
18019 tg3_bus_string(tp, str),
18020 dev->dev_addr);
18021
18022 if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED)) {
18023 char *ethtype;
18024
18025 if (tp->phy_flags & TG3_PHYFLG_10_100_ONLY)
18026 ethtype = "10/100Base-TX";
18027 else if (tp->phy_flags & TG3_PHYFLG_ANY_SERDES)
18028 ethtype = "1000Base-SX";
18029 else
18030 ethtype = "10/100/1000Base-T";
18031
18032 netdev_info(dev, format: "attached PHY is %s (%s Ethernet) "
18033 "(WireSpeed[%d], EEE[%d])\n",
18034 tg3_phy_string(tp), ethtype,
18035 (tp->phy_flags & TG3_PHYFLG_NO_ETH_WIRE_SPEED) == 0,
18036 (tp->phy_flags & TG3_PHYFLG_EEE_CAP) != 0);
18037 }
18038
18039 netdev_info(dev, format: "RXcsums[%d] LinkChgREG[%d] MIirq[%d] ASF[%d] TSOcap[%d]\n",
18040 (dev->features & NETIF_F_RXCSUM) != 0,
18041 tg3_flag(tp, USE_LINKCHG_REG) != 0,
18042 (tp->phy_flags & TG3_PHYFLG_USE_MI_INTERRUPT) != 0,
18043 tg3_flag(tp, ENABLE_ASF) != 0,
18044 tg3_flag(tp, TSO_CAPABLE) != 0);
18045 netdev_info(dev, format: "dma_rwctrl[%08x] dma_mask[%d-bit]\n",
18046 tp->dma_rwctrl,
18047 pdev->dma_mask == DMA_BIT_MASK(32) ? 32 :
18048 ((u64)pdev->dma_mask) == DMA_BIT_MASK(40) ? 40 : 64);
18049
18050 pci_save_state(dev: pdev);
18051
18052 return 0;
18053
18054err_out_apeunmap:
18055 if (tp->aperegs) {
18056 iounmap(addr: tp->aperegs);
18057 tp->aperegs = NULL;
18058 }
18059
18060err_out_iounmap:
18061 if (tp->regs) {
18062 iounmap(addr: tp->regs);
18063 tp->regs = NULL;
18064 }
18065
18066err_out_free_dev:
18067 free_netdev(dev);
18068
18069err_out_free_res:
18070 pci_release_regions(pdev);
18071
18072err_out_disable_pdev:
18073 if (pci_is_enabled(pdev))
18074 pci_disable_device(dev: pdev);
18075 return err;
18076}
18077
18078static void tg3_remove_one(struct pci_dev *pdev)
18079{
18080 struct net_device *dev = pci_get_drvdata(pdev);
18081
18082 if (dev) {
18083 struct tg3 *tp = netdev_priv(dev);
18084
18085 tg3_ptp_fini(tp);
18086
18087 release_firmware(fw: tp->fw);
18088
18089 tg3_reset_task_cancel(tp);
18090
18091 if (tg3_flag(tp, USE_PHYLIB)) {
18092 tg3_phy_fini(tp);
18093 tg3_mdio_fini(tp);
18094 }
18095
18096 unregister_netdev(dev);
18097 if (tp->aperegs) {
18098 iounmap(addr: tp->aperegs);
18099 tp->aperegs = NULL;
18100 }
18101 if (tp->regs) {
18102 iounmap(addr: tp->regs);
18103 tp->regs = NULL;
18104 }
18105 free_netdev(dev);
18106 pci_release_regions(pdev);
18107 pci_disable_device(dev: pdev);
18108 }
18109}
18110
18111#ifdef CONFIG_PM_SLEEP
18112static int tg3_suspend(struct device *device)
18113{
18114 struct net_device *dev = dev_get_drvdata(dev: device);
18115 struct tg3 *tp = netdev_priv(dev);
18116
18117 rtnl_lock();
18118
18119 if (!netif_running(dev))
18120 goto unlock;
18121
18122 tg3_reset_task_cancel(tp);
18123 tg3_phy_stop(tp);
18124 tg3_netif_stop(tp);
18125
18126 tg3_timer_stop(tp);
18127
18128 tg3_full_lock(tp, irq_sync: 1);
18129 tg3_disable_ints(tp);
18130 tg3_full_unlock(tp);
18131
18132 netif_device_detach(dev);
18133
18134 tg3_full_lock(tp, irq_sync: 0);
18135 tg3_halt(tp, RESET_KIND_SHUTDOWN, silent: 1);
18136 tg3_flag_clear(tp, INIT_COMPLETE);
18137 tg3_full_unlock(tp);
18138
18139 tg3_power_down_prepare(tp);
18140
18141unlock:
18142 rtnl_unlock();
18143 return 0;
18144}
18145
18146static int tg3_resume(struct device *device)
18147{
18148 struct net_device *dev = dev_get_drvdata(dev: device);
18149 struct tg3 *tp = netdev_priv(dev);
18150 int err = 0;
18151
18152 rtnl_lock();
18153
18154 if (!netif_running(dev))
18155 goto unlock;
18156
18157 netif_device_attach(dev);
18158
18159 netdev_lock(dev);
18160 tg3_full_lock(tp, irq_sync: 0);
18161
18162 tg3_ape_driver_state_change(tp, RESET_KIND_INIT);
18163
18164 tg3_flag_set(tp, INIT_COMPLETE);
18165 err = tg3_restart_hw(tp,
18166 reset_phy: !(tp->phy_flags & TG3_PHYFLG_KEEP_LINK_ON_PWRDN));
18167 if (err)
18168 goto out;
18169
18170 tg3_timer_start(tp);
18171
18172 tg3_netif_start(tp);
18173
18174out:
18175 tg3_full_unlock(tp);
18176 netdev_unlock(dev);
18177
18178 if (!err)
18179 tg3_phy_start(tp);
18180
18181unlock:
18182 rtnl_unlock();
18183 return err;
18184}
18185#endif /* CONFIG_PM_SLEEP */
18186
18187static SIMPLE_DEV_PM_OPS(tg3_pm_ops, tg3_suspend, tg3_resume);
18188
18189/* Systems where ACPI _PTS (Prepare To Sleep) S5 will result in a fatal
18190 * PCIe AER event on the tg3 device if the tg3 device is not, or cannot
18191 * be, powered down.
18192 */
18193static const struct dmi_system_id tg3_restart_aer_quirk_table[] = {
18194 {
18195 .matches = {
18196 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
18197 DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge R440"),
18198 },
18199 },
18200 {
18201 .matches = {
18202 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
18203 DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge R540"),
18204 },
18205 },
18206 {
18207 .matches = {
18208 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
18209 DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge R640"),
18210 },
18211 },
18212 {
18213 .matches = {
18214 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
18215 DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge R650"),
18216 },
18217 },
18218 {
18219 .matches = {
18220 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
18221 DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge R740"),
18222 },
18223 },
18224 {
18225 .matches = {
18226 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
18227 DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge R750"),
18228 },
18229 },
18230 {}
18231};
18232
18233static void tg3_shutdown(struct pci_dev *pdev)
18234{
18235 struct net_device *dev = pci_get_drvdata(pdev);
18236 struct tg3 *tp = netdev_priv(dev);
18237
18238 tg3_reset_task_cancel(tp);
18239
18240 rtnl_lock();
18241
18242 netif_device_detach(dev);
18243
18244 if (netif_running(dev))
18245 dev_close(dev);
18246
18247 if (system_state == SYSTEM_POWER_OFF)
18248 tg3_power_down(tp);
18249 else if (system_state == SYSTEM_RESTART &&
18250 dmi_first_match(list: tg3_restart_aer_quirk_table) &&
18251 pdev->current_state != PCI_D3cold &&
18252 pdev->current_state != PCI_UNKNOWN) {
18253 /* Disable PCIe AER on the tg3 to avoid a fatal
18254 * error during this system restart.
18255 */
18256 pcie_capability_clear_word(dev: pdev, PCI_EXP_DEVCTL,
18257 PCI_EXP_DEVCTL_CERE |
18258 PCI_EXP_DEVCTL_NFERE |
18259 PCI_EXP_DEVCTL_FERE |
18260 PCI_EXP_DEVCTL_URRE);
18261 }
18262
18263 rtnl_unlock();
18264
18265 pci_disable_device(dev: pdev);
18266}
18267
18268/**
18269 * tg3_io_error_detected - called when PCI error is detected
18270 * @pdev: Pointer to PCI device
18271 * @state: The current pci connection state
18272 *
18273 * This function is called after a PCI bus error affecting
18274 * this device has been detected.
18275 */
18276static pci_ers_result_t tg3_io_error_detected(struct pci_dev *pdev,
18277 pci_channel_state_t state)
18278{
18279 struct net_device *netdev = pci_get_drvdata(pdev);
18280 struct tg3 *tp = netdev_priv(dev: netdev);
18281 pci_ers_result_t err = PCI_ERS_RESULT_NEED_RESET;
18282
18283 netdev_info(dev: netdev, format: "PCI I/O error detected\n");
18284
18285 /* Want to make sure that the reset task doesn't run */
18286 tg3_reset_task_cancel(tp);
18287
18288 rtnl_lock();
18289
18290 /* Could be second call or maybe we don't have netdev yet */
18291 if (!netdev || tp->pcierr_recovery || !netif_running(dev: netdev))
18292 goto done;
18293
18294 /* We needn't recover from permanent error */
18295 if (state == pci_channel_io_frozen)
18296 tp->pcierr_recovery = true;
18297
18298 tg3_phy_stop(tp);
18299
18300 tg3_netif_stop(tp);
18301
18302 tg3_timer_stop(tp);
18303
18304 netif_device_detach(dev: netdev);
18305
18306 /* Clean up software state, even if MMIO is blocked */
18307 tg3_full_lock(tp, irq_sync: 0);
18308 tg3_halt(tp, RESET_KIND_SHUTDOWN, silent: 0);
18309 tg3_full_unlock(tp);
18310
18311done:
18312 if (state == pci_channel_io_perm_failure) {
18313 if (netdev) {
18314 netdev_lock(dev: netdev);
18315 tg3_napi_enable(tp);
18316 netdev_unlock(dev: netdev);
18317 dev_close(dev: netdev);
18318 }
18319 err = PCI_ERS_RESULT_DISCONNECT;
18320 } else {
18321 pci_disable_device(dev: pdev);
18322 }
18323
18324 rtnl_unlock();
18325
18326 return err;
18327}
18328
18329/**
18330 * tg3_io_slot_reset - called after the pci bus has been reset.
18331 * @pdev: Pointer to PCI device
18332 *
18333 * Restart the card from scratch, as if from a cold-boot.
18334 * At this point, the card has experienced a hard reset,
18335 * followed by fixups by BIOS, and has its config space
18336 * set up identically to what it was at cold boot.
18337 */
18338static pci_ers_result_t tg3_io_slot_reset(struct pci_dev *pdev)
18339{
18340 struct net_device *netdev = pci_get_drvdata(pdev);
18341 struct tg3 *tp = netdev_priv(dev: netdev);
18342 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
18343 int err;
18344
18345 rtnl_lock();
18346
18347 if (pci_enable_device(dev: pdev)) {
18348 dev_err(&pdev->dev,
18349 "Cannot re-enable PCI device after reset.\n");
18350 goto done;
18351 }
18352
18353 pci_set_master(dev: pdev);
18354 pci_restore_state(dev: pdev);
18355 pci_save_state(dev: pdev);
18356
18357 if (!netdev || !netif_running(dev: netdev)) {
18358 rc = PCI_ERS_RESULT_RECOVERED;
18359 goto done;
18360 }
18361
18362 err = tg3_power_up(tp);
18363 if (err)
18364 goto done;
18365
18366 rc = PCI_ERS_RESULT_RECOVERED;
18367
18368done:
18369 if (rc != PCI_ERS_RESULT_RECOVERED && netdev && netif_running(dev: netdev)) {
18370 netdev_lock(dev: netdev);
18371 tg3_napi_enable(tp);
18372 netdev_unlock(dev: netdev);
18373 dev_close(dev: netdev);
18374 }
18375 rtnl_unlock();
18376
18377 return rc;
18378}
18379
18380/**
18381 * tg3_io_resume - called when traffic can start flowing again.
18382 * @pdev: Pointer to PCI device
18383 *
18384 * This callback is called when the error recovery driver tells
18385 * us that its OK to resume normal operation.
18386 */
18387static void tg3_io_resume(struct pci_dev *pdev)
18388{
18389 struct net_device *netdev = pci_get_drvdata(pdev);
18390 struct tg3 *tp = netdev_priv(dev: netdev);
18391 int err;
18392
18393 rtnl_lock();
18394
18395 if (!netdev || !netif_running(dev: netdev))
18396 goto done;
18397
18398 netdev_lock(dev: netdev);
18399 tg3_full_lock(tp, irq_sync: 0);
18400 tg3_ape_driver_state_change(tp, RESET_KIND_INIT);
18401 tg3_flag_set(tp, INIT_COMPLETE);
18402 err = tg3_restart_hw(tp, reset_phy: true);
18403 if (err) {
18404 tg3_full_unlock(tp);
18405 netdev_unlock(dev: netdev);
18406 netdev_err(dev: netdev, format: "Cannot restart hardware after reset.\n");
18407 goto done;
18408 }
18409
18410 netif_device_attach(dev: netdev);
18411
18412 tg3_timer_start(tp);
18413
18414 tg3_netif_start(tp);
18415
18416 tg3_full_unlock(tp);
18417 netdev_unlock(dev: netdev);
18418
18419 tg3_phy_start(tp);
18420
18421done:
18422 tp->pcierr_recovery = false;
18423 rtnl_unlock();
18424}
18425
18426static const struct pci_error_handlers tg3_err_handler = {
18427 .error_detected = tg3_io_error_detected,
18428 .slot_reset = tg3_io_slot_reset,
18429 .resume = tg3_io_resume
18430};
18431
18432static struct pci_driver tg3_driver = {
18433 .name = DRV_MODULE_NAME,
18434 .id_table = tg3_pci_tbl,
18435 .probe = tg3_init_one,
18436 .remove = tg3_remove_one,
18437 .err_handler = &tg3_err_handler,
18438 .driver.pm = &tg3_pm_ops,
18439 .shutdown = tg3_shutdown,
18440};
18441
18442module_pci_driver(tg3_driver);
18443