| 1 | // SPDX-License-Identifier: GPL-2.0-or-later | 
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| 2 | /* | 
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| 3 | * libata-trace.c - trace functions for libata | 
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| 4 | * | 
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| 5 | * Copyright 2015 Hannes Reinecke | 
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| 6 | * Copyright 2015 SUSE Linux GmbH | 
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| 7 | */ | 
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| 8 |  | 
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| 9 | #include <linux/kernel.h> | 
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| 10 | #include <linux/trace_seq.h> | 
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| 11 | #include <trace/events/libata.h> | 
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| 12 |  | 
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| 13 | const char * | 
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| 14 | libata_trace_parse_status(struct trace_seq *p, unsigned char status) | 
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| 15 | { | 
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| 16 | const char *ret = trace_seq_buffer_ptr(s: p); | 
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| 17 |  | 
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| 18 | trace_seq_printf(s: p, fmt: "{ "); | 
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| 19 | if (status & ATA_BUSY) | 
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| 20 | trace_seq_printf(s: p, fmt: "BUSY "); | 
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| 21 | if (status & ATA_DRDY) | 
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| 22 | trace_seq_printf(s: p, fmt: "DRDY "); | 
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| 23 | if (status & ATA_DF) | 
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| 24 | trace_seq_printf(s: p, fmt: "DF "); | 
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| 25 | if (status & ATA_DSC) | 
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| 26 | trace_seq_printf(s: p, fmt: "DSC "); | 
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| 27 | if (status & ATA_DRQ) | 
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| 28 | trace_seq_printf(s: p, fmt: "DRQ "); | 
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| 29 | if (status & ATA_CORR) | 
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| 30 | trace_seq_printf(s: p, fmt: "CORR "); | 
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| 31 | if (status & ATA_SENSE) | 
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| 32 | trace_seq_printf(s: p, fmt: "SENSE "); | 
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| 33 | if (status & ATA_ERR) | 
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| 34 | trace_seq_printf(s: p, fmt: "ERR "); | 
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| 35 | trace_seq_putc(s: p, c: '}'); | 
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| 36 | trace_seq_putc(s: p, c: 0); | 
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| 37 |  | 
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| 38 | return ret; | 
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| 39 | } | 
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| 40 |  | 
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| 41 | const char * | 
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| 42 | libata_trace_parse_host_stat(struct trace_seq *p, unsigned char host_stat) | 
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| 43 | { | 
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| 44 | const char *ret = trace_seq_buffer_ptr(s: p); | 
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| 45 |  | 
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| 46 | trace_seq_printf(s: p, fmt: "{ "); | 
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| 47 | if (host_stat & ATA_DMA_INTR) | 
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| 48 | trace_seq_printf(s: p, fmt: "INTR "); | 
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| 49 | if (host_stat & ATA_DMA_ERR) | 
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| 50 | trace_seq_printf(s: p, fmt: "ERR "); | 
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| 51 | if (host_stat & ATA_DMA_ACTIVE) | 
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| 52 | trace_seq_printf(s: p, fmt: "ACTIVE "); | 
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| 53 | trace_seq_putc(s: p, c: '}'); | 
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| 54 | trace_seq_putc(s: p, c: 0); | 
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| 55 |  | 
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| 56 | return ret; | 
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| 57 | } | 
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| 58 |  | 
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| 59 | const char * | 
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| 60 | libata_trace_parse_eh_action(struct trace_seq *p, unsigned int eh_action) | 
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| 61 | { | 
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| 62 | const char *ret = trace_seq_buffer_ptr(s: p); | 
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| 63 |  | 
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| 64 | trace_seq_printf(s: p, fmt: "%x", eh_action); | 
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| 65 | if (eh_action) { | 
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| 66 | trace_seq_printf(s: p, fmt: "{ "); | 
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| 67 | if (eh_action & ATA_EH_REVALIDATE) | 
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| 68 | trace_seq_printf(s: p, fmt: "REVALIDATE "); | 
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| 69 | if (eh_action & (ATA_EH_SOFTRESET | ATA_EH_HARDRESET)) | 
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| 70 | trace_seq_printf(s: p, fmt: "RESET "); | 
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| 71 | else if (eh_action & ATA_EH_SOFTRESET) | 
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| 72 | trace_seq_printf(s: p, fmt: "SOFTRESET "); | 
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| 73 | else if (eh_action & ATA_EH_HARDRESET) | 
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| 74 | trace_seq_printf(s: p, fmt: "HARDRESET "); | 
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| 75 | if (eh_action & ATA_EH_ENABLE_LINK) | 
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| 76 | trace_seq_printf(s: p, fmt: "ENABLE_LINK "); | 
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| 77 | if (eh_action & ATA_EH_PARK) | 
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| 78 | trace_seq_printf(s: p, fmt: "PARK "); | 
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| 79 | trace_seq_putc(s: p, c: '}'); | 
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| 80 | } | 
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| 81 | trace_seq_putc(s: p, c: 0); | 
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| 82 |  | 
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| 83 | return ret; | 
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| 84 | } | 
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| 85 |  | 
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| 86 | const char * | 
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| 87 | libata_trace_parse_eh_err_mask(struct trace_seq *p, unsigned int eh_err_mask) | 
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| 88 | { | 
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| 89 | const char *ret = trace_seq_buffer_ptr(s: p); | 
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| 90 |  | 
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| 91 | trace_seq_printf(s: p, fmt: "%x", eh_err_mask); | 
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| 92 | if (eh_err_mask) { | 
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| 93 | trace_seq_printf(s: p, fmt: "{ "); | 
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| 94 | if (eh_err_mask & AC_ERR_DEV) | 
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| 95 | trace_seq_printf(s: p, fmt: "DEV "); | 
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| 96 | if (eh_err_mask & AC_ERR_HSM) | 
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| 97 | trace_seq_printf(s: p, fmt: "HSM "); | 
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| 98 | if (eh_err_mask & AC_ERR_TIMEOUT) | 
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| 99 | trace_seq_printf(s: p, fmt: "TIMEOUT "); | 
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| 100 | if (eh_err_mask & AC_ERR_MEDIA) | 
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| 101 | trace_seq_printf(s: p, fmt: "MEDIA "); | 
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| 102 | if (eh_err_mask & AC_ERR_ATA_BUS) | 
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| 103 | trace_seq_printf(s: p, fmt: "ATA_BUS "); | 
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| 104 | if (eh_err_mask & AC_ERR_HOST_BUS) | 
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| 105 | trace_seq_printf(s: p, fmt: "HOST_BUS "); | 
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| 106 | if (eh_err_mask & AC_ERR_SYSTEM) | 
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| 107 | trace_seq_printf(s: p, fmt: "SYSTEM "); | 
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| 108 | if (eh_err_mask & AC_ERR_INVALID) | 
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| 109 | trace_seq_printf(s: p, fmt: "INVALID "); | 
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| 110 | if (eh_err_mask & AC_ERR_OTHER) | 
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| 111 | trace_seq_printf(s: p, fmt: "OTHER "); | 
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| 112 | if (eh_err_mask & AC_ERR_NODEV_HINT) | 
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| 113 | trace_seq_printf(s: p, fmt: "NODEV_HINT "); | 
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| 114 | if (eh_err_mask & AC_ERR_NCQ) | 
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| 115 | trace_seq_printf(s: p, fmt: "NCQ "); | 
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| 116 | trace_seq_putc(s: p, c: '}'); | 
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| 117 | } | 
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| 118 | trace_seq_putc(s: p, c: 0); | 
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| 119 |  | 
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| 120 | return ret; | 
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| 121 | } | 
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| 122 |  | 
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| 123 | const char * | 
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| 124 | libata_trace_parse_qc_flags(struct trace_seq *p, unsigned int qc_flags) | 
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| 125 | { | 
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| 126 | const char *ret = trace_seq_buffer_ptr(s: p); | 
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| 127 |  | 
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| 128 | trace_seq_printf(s: p, fmt: "%x", qc_flags); | 
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| 129 | if (qc_flags) { | 
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| 130 | trace_seq_printf(s: p, fmt: "{ "); | 
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| 131 | if (qc_flags & ATA_QCFLAG_ACTIVE) | 
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| 132 | trace_seq_printf(s: p, fmt: "ACTIVE "); | 
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| 133 | if (qc_flags & ATA_QCFLAG_DMAMAP) | 
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| 134 | trace_seq_printf(s: p, fmt: "DMAMAP "); | 
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| 135 | if (qc_flags & ATA_QCFLAG_IO) | 
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| 136 | trace_seq_printf(s: p, fmt: "IO "); | 
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| 137 | if (qc_flags & ATA_QCFLAG_RESULT_TF) | 
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| 138 | trace_seq_printf(s: p, fmt: "RESULT_TF "); | 
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| 139 | if (qc_flags & ATA_QCFLAG_CLEAR_EXCL) | 
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| 140 | trace_seq_printf(s: p, fmt: "CLEAR_EXCL "); | 
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| 141 | if (qc_flags & ATA_QCFLAG_QUIET) | 
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| 142 | trace_seq_printf(s: p, fmt: "QUIET "); | 
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| 143 | if (qc_flags & ATA_QCFLAG_RETRY) | 
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| 144 | trace_seq_printf(s: p, fmt: "RETRY "); | 
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| 145 | if (qc_flags & ATA_QCFLAG_EH) | 
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| 146 | trace_seq_printf(s: p, fmt: "FAILED "); | 
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| 147 | if (qc_flags & ATA_QCFLAG_SENSE_VALID) | 
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| 148 | trace_seq_printf(s: p, fmt: "SENSE_VALID "); | 
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| 149 | if (qc_flags & ATA_QCFLAG_EH_SCHEDULED) | 
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| 150 | trace_seq_printf(s: p, fmt: "EH_SCHEDULED "); | 
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| 151 | trace_seq_putc(s: p, c: '}'); | 
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| 152 | } | 
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| 153 | trace_seq_putc(s: p, c: 0); | 
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| 154 |  | 
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| 155 | return ret; | 
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| 156 | } | 
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| 157 |  | 
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| 158 | const char * | 
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| 159 | libata_trace_parse_tf_flags(struct trace_seq *p, unsigned int tf_flags) | 
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| 160 | { | 
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| 161 | const char *ret = trace_seq_buffer_ptr(s: p); | 
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| 162 |  | 
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| 163 | trace_seq_printf(s: p, fmt: "%x", tf_flags); | 
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| 164 | if (tf_flags) { | 
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| 165 | trace_seq_printf(s: p, fmt: "{ "); | 
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| 166 | if (tf_flags & ATA_TFLAG_LBA48) | 
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| 167 | trace_seq_printf(s: p, fmt: "LBA48 "); | 
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| 168 | if (tf_flags & ATA_TFLAG_ISADDR) | 
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| 169 | trace_seq_printf(s: p, fmt: "ISADDR "); | 
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| 170 | if (tf_flags & ATA_TFLAG_DEVICE) | 
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| 171 | trace_seq_printf(s: p, fmt: "DEV "); | 
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| 172 | if (tf_flags & ATA_TFLAG_WRITE) | 
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| 173 | trace_seq_printf(s: p, fmt: "WRITE "); | 
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| 174 | if (tf_flags & ATA_TFLAG_LBA) | 
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| 175 | trace_seq_printf(s: p, fmt: "LBA "); | 
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| 176 | if (tf_flags & ATA_TFLAG_FUA) | 
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| 177 | trace_seq_printf(s: p, fmt: "FUA "); | 
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| 178 | if (tf_flags & ATA_TFLAG_POLLING) | 
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| 179 | trace_seq_printf(s: p, fmt: "POLL "); | 
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| 180 | trace_seq_putc(s: p, c: '}'); | 
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| 181 | } | 
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| 182 | trace_seq_putc(s: p, c: 0); | 
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| 183 |  | 
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| 184 | return ret; | 
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| 185 | } | 
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| 186 |  | 
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| 187 | const char * | 
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| 188 | libata_trace_parse_subcmd(struct trace_seq *p, unsigned char cmd, | 
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| 189 | unsigned char feature, unsigned char hob_nsect) | 
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| 190 | { | 
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| 191 | const char *ret = trace_seq_buffer_ptr(s: p); | 
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| 192 |  | 
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| 193 | switch (cmd) { | 
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| 194 | case ATA_CMD_FPDMA_RECV: | 
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| 195 | switch (hob_nsect & 0x5f) { | 
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| 196 | case ATA_SUBCMD_FPDMA_RECV_RD_LOG_DMA_EXT: | 
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| 197 | trace_seq_printf(s: p, fmt: " READ_LOG_DMA_EXT"); | 
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| 198 | break; | 
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| 199 | case ATA_SUBCMD_FPDMA_RECV_ZAC_MGMT_IN: | 
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| 200 | trace_seq_printf(s: p, fmt: " ZAC_MGMT_IN"); | 
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| 201 | break; | 
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| 202 | } | 
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| 203 | break; | 
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| 204 | case ATA_CMD_FPDMA_SEND: | 
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| 205 | switch (hob_nsect & 0x5f) { | 
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| 206 | case ATA_SUBCMD_FPDMA_SEND_WR_LOG_DMA_EXT: | 
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| 207 | trace_seq_printf(s: p, fmt: " WRITE_LOG_DMA_EXT"); | 
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| 208 | break; | 
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| 209 | case ATA_SUBCMD_FPDMA_SEND_DSM: | 
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| 210 | trace_seq_printf(s: p, fmt: " DATASET_MANAGEMENT"); | 
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| 211 | break; | 
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| 212 | } | 
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| 213 | break; | 
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| 214 | case ATA_CMD_NCQ_NON_DATA: | 
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| 215 | switch (feature) { | 
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| 216 | case ATA_SUBCMD_NCQ_NON_DATA_ABORT_QUEUE: | 
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| 217 | trace_seq_printf(s: p, fmt: " ABORT_QUEUE"); | 
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| 218 | break; | 
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| 219 | case ATA_SUBCMD_NCQ_NON_DATA_SET_FEATURES: | 
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| 220 | trace_seq_printf(s: p, fmt: " SET_FEATURES"); | 
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| 221 | break; | 
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| 222 | case ATA_SUBCMD_NCQ_NON_DATA_ZERO_EXT: | 
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| 223 | trace_seq_printf(s: p, fmt: " ZERO_EXT"); | 
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| 224 | break; | 
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| 225 | case ATA_SUBCMD_NCQ_NON_DATA_ZAC_MGMT_OUT: | 
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| 226 | trace_seq_printf(s: p, fmt: " ZAC_MGMT_OUT"); | 
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| 227 | break; | 
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| 228 | } | 
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| 229 | break; | 
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| 230 | case ATA_CMD_ZAC_MGMT_IN: | 
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| 231 | switch (feature) { | 
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| 232 | case ATA_SUBCMD_ZAC_MGMT_IN_REPORT_ZONES: | 
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| 233 | trace_seq_printf(s: p, fmt: " REPORT_ZONES"); | 
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| 234 | break; | 
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| 235 | } | 
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| 236 | break; | 
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| 237 | case ATA_CMD_ZAC_MGMT_OUT: | 
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| 238 | switch (feature) { | 
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| 239 | case ATA_SUBCMD_ZAC_MGMT_OUT_CLOSE_ZONE: | 
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| 240 | trace_seq_printf(s: p, fmt: " CLOSE_ZONE"); | 
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| 241 | break; | 
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| 242 | case ATA_SUBCMD_ZAC_MGMT_OUT_FINISH_ZONE: | 
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| 243 | trace_seq_printf(s: p, fmt: " FINISH_ZONE"); | 
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| 244 | break; | 
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| 245 | case ATA_SUBCMD_ZAC_MGMT_OUT_OPEN_ZONE: | 
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| 246 | trace_seq_printf(s: p, fmt: " OPEN_ZONE"); | 
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| 247 | break; | 
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| 248 | case ATA_SUBCMD_ZAC_MGMT_OUT_RESET_WRITE_POINTER: | 
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| 249 | trace_seq_printf(s: p, fmt: " RESET_WRITE_POINTER"); | 
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| 250 | break; | 
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| 251 | } | 
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| 252 | break; | 
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| 253 | } | 
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| 254 | trace_seq_putc(s: p, c: 0); | 
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| 255 |  | 
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| 256 | return ret; | 
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| 257 | } | 
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| 258 |  | 
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