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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * libata-trace.c - trace functions for libata4 *5 * Copyright 2015 Hannes Reinecke6 * Copyright 2015 SUSE Linux GmbH7 */8 9#include <linux/kernel.h>10#include <linux/trace_seq.h>11#include <trace/events/libata.h>12 13const char *14libata_trace_parse_status(struct trace_seq *p, unsigned char status)15{16 const char *ret = trace_seq_buffer_ptr(p);17 18 trace_seq_printf(p, "{ ");19 if (status & ATA_BUSY)20 trace_seq_printf(p, "BUSY ");21 if (status & ATA_DRDY)22 trace_seq_printf(p, "DRDY ");23 if (status & ATA_DF)24 trace_seq_printf(p, "DF ");25 if (status & ATA_DSC)26 trace_seq_printf(p, "DSC ");27 if (status & ATA_DRQ)28 trace_seq_printf(p, "DRQ ");29 if (status & ATA_CORR)30 trace_seq_printf(p, "CORR ");31 if (status & ATA_SENSE)32 trace_seq_printf(p, "SENSE ");33 if (status & ATA_ERR)34 trace_seq_printf(p, "ERR ");35 trace_seq_putc(p, '}');36 trace_seq_putc(p, 0);37 38 return ret;39}40 41const char *42libata_trace_parse_host_stat(struct trace_seq *p, unsigned char host_stat)43{44 const char *ret = trace_seq_buffer_ptr(p);45 46 trace_seq_printf(p, "{ ");47 if (host_stat & ATA_DMA_INTR)48 trace_seq_printf(p, "INTR ");49 if (host_stat & ATA_DMA_ERR)50 trace_seq_printf(p, "ERR ");51 if (host_stat & ATA_DMA_ACTIVE)52 trace_seq_printf(p, "ACTIVE ");53 trace_seq_putc(p, '}');54 trace_seq_putc(p, 0);55 56 return ret;57}58 59const char *60libata_trace_parse_eh_action(struct trace_seq *p, unsigned int eh_action)61{62 const char *ret = trace_seq_buffer_ptr(p);63 64 trace_seq_printf(p, "%x", eh_action);65 if (eh_action) {66 trace_seq_printf(p, "{ ");67 if (eh_action & ATA_EH_REVALIDATE)68 trace_seq_printf(p, "REVALIDATE ");69 if (eh_action & (ATA_EH_SOFTRESET | ATA_EH_HARDRESET))70 trace_seq_printf(p, "RESET ");71 else if (eh_action & ATA_EH_SOFTRESET)72 trace_seq_printf(p, "SOFTRESET ");73 else if (eh_action & ATA_EH_HARDRESET)74 trace_seq_printf(p, "HARDRESET ");75 if (eh_action & ATA_EH_ENABLE_LINK)76 trace_seq_printf(p, "ENABLE_LINK ");77 if (eh_action & ATA_EH_PARK)78 trace_seq_printf(p, "PARK ");79 trace_seq_putc(p, '}');80 }81 trace_seq_putc(p, 0);82 83 return ret;84}85 86const char *87libata_trace_parse_eh_err_mask(struct trace_seq *p, unsigned int eh_err_mask)88{89 const char *ret = trace_seq_buffer_ptr(p);90 91 trace_seq_printf(p, "%x", eh_err_mask);92 if (eh_err_mask) {93 trace_seq_printf(p, "{ ");94 if (eh_err_mask & AC_ERR_DEV)95 trace_seq_printf(p, "DEV ");96 if (eh_err_mask & AC_ERR_HSM)97 trace_seq_printf(p, "HSM ");98 if (eh_err_mask & AC_ERR_TIMEOUT)99 trace_seq_printf(p, "TIMEOUT ");100 if (eh_err_mask & AC_ERR_MEDIA)101 trace_seq_printf(p, "MEDIA ");102 if (eh_err_mask & AC_ERR_ATA_BUS)103 trace_seq_printf(p, "ATA_BUS ");104 if (eh_err_mask & AC_ERR_HOST_BUS)105 trace_seq_printf(p, "HOST_BUS ");106 if (eh_err_mask & AC_ERR_SYSTEM)107 trace_seq_printf(p, "SYSTEM ");108 if (eh_err_mask & AC_ERR_INVALID)109 trace_seq_printf(p, "INVALID ");110 if (eh_err_mask & AC_ERR_OTHER)111 trace_seq_printf(p, "OTHER ");112 if (eh_err_mask & AC_ERR_NODEV_HINT)113 trace_seq_printf(p, "NODEV_HINT ");114 if (eh_err_mask & AC_ERR_NCQ)115 trace_seq_printf(p, "NCQ ");116 trace_seq_putc(p, '}');117 }118 trace_seq_putc(p, 0);119 120 return ret;121}122 123const char *124libata_trace_parse_qc_flags(struct trace_seq *p, unsigned int qc_flags)125{126 const char *ret = trace_seq_buffer_ptr(p);127 128 trace_seq_printf(p, "%x", qc_flags);129 if (qc_flags) {130 trace_seq_printf(p, "{ ");131 if (qc_flags & ATA_QCFLAG_ACTIVE)132 trace_seq_printf(p, "ACTIVE ");133 if (qc_flags & ATA_QCFLAG_DMAMAP)134 trace_seq_printf(p, "DMAMAP ");135 if (qc_flags & ATA_QCFLAG_IO)136 trace_seq_printf(p, "IO ");137 if (qc_flags & ATA_QCFLAG_RESULT_TF)138 trace_seq_printf(p, "RESULT_TF ");139 if (qc_flags & ATA_QCFLAG_CLEAR_EXCL)140 trace_seq_printf(p, "CLEAR_EXCL ");141 if (qc_flags & ATA_QCFLAG_QUIET)142 trace_seq_printf(p, "QUIET ");143 if (qc_flags & ATA_QCFLAG_RETRY)144 trace_seq_printf(p, "RETRY ");145 if (qc_flags & ATA_QCFLAG_EH)146 trace_seq_printf(p, "FAILED ");147 if (qc_flags & ATA_QCFLAG_SENSE_VALID)148 trace_seq_printf(p, "SENSE_VALID ");149 if (qc_flags & ATA_QCFLAG_EH_SCHEDULED)150 trace_seq_printf(p, "EH_SCHEDULED ");151 trace_seq_putc(p, '}');152 }153 trace_seq_putc(p, 0);154 155 return ret;156}157 158const char *159libata_trace_parse_tf_flags(struct trace_seq *p, unsigned int tf_flags)160{161 const char *ret = trace_seq_buffer_ptr(p);162 163 trace_seq_printf(p, "%x", tf_flags);164 if (tf_flags) {165 trace_seq_printf(p, "{ ");166 if (tf_flags & ATA_TFLAG_LBA48)167 trace_seq_printf(p, "LBA48 ");168 if (tf_flags & ATA_TFLAG_ISADDR)169 trace_seq_printf(p, "ISADDR ");170 if (tf_flags & ATA_TFLAG_DEVICE)171 trace_seq_printf(p, "DEV ");172 if (tf_flags & ATA_TFLAG_WRITE)173 trace_seq_printf(p, "WRITE ");174 if (tf_flags & ATA_TFLAG_LBA)175 trace_seq_printf(p, "LBA ");176 if (tf_flags & ATA_TFLAG_FUA)177 trace_seq_printf(p, "FUA ");178 if (tf_flags & ATA_TFLAG_POLLING)179 trace_seq_printf(p, "POLL ");180 trace_seq_putc(p, '}');181 }182 trace_seq_putc(p, 0);183 184 return ret;185}186 187const char *188libata_trace_parse_subcmd(struct trace_seq *p, unsigned char cmd,189 unsigned char feature, unsigned char hob_nsect)190{191 const char *ret = trace_seq_buffer_ptr(p);192 193 switch (cmd) {194 case ATA_CMD_FPDMA_RECV:195 switch (hob_nsect & 0x5f) {196 case ATA_SUBCMD_FPDMA_RECV_RD_LOG_DMA_EXT:197 trace_seq_printf(p, " READ_LOG_DMA_EXT");198 break;199 case ATA_SUBCMD_FPDMA_RECV_ZAC_MGMT_IN:200 trace_seq_printf(p, " ZAC_MGMT_IN");201 break;202 }203 break;204 case ATA_CMD_FPDMA_SEND:205 switch (hob_nsect & 0x5f) {206 case ATA_SUBCMD_FPDMA_SEND_WR_LOG_DMA_EXT:207 trace_seq_printf(p, " WRITE_LOG_DMA_EXT");208 break;209 case ATA_SUBCMD_FPDMA_SEND_DSM:210 trace_seq_printf(p, " DATASET_MANAGEMENT");211 break;212 }213 break;214 case ATA_CMD_NCQ_NON_DATA:215 switch (feature) {216 case ATA_SUBCMD_NCQ_NON_DATA_ABORT_QUEUE:217 trace_seq_printf(p, " ABORT_QUEUE");218 break;219 case ATA_SUBCMD_NCQ_NON_DATA_SET_FEATURES:220 trace_seq_printf(p, " SET_FEATURES");221 break;222 case ATA_SUBCMD_NCQ_NON_DATA_ZERO_EXT:223 trace_seq_printf(p, " ZERO_EXT");224 break;225 case ATA_SUBCMD_NCQ_NON_DATA_ZAC_MGMT_OUT:226 trace_seq_printf(p, " ZAC_MGMT_OUT");227 break;228 }229 break;230 case ATA_CMD_ZAC_MGMT_IN:231 switch (feature) {232 case ATA_SUBCMD_ZAC_MGMT_IN_REPORT_ZONES:233 trace_seq_printf(p, " REPORT_ZONES");234 break;235 }236 break;237 case ATA_CMD_ZAC_MGMT_OUT:238 switch (feature) {239 case ATA_SUBCMD_ZAC_MGMT_OUT_CLOSE_ZONE:240 trace_seq_printf(p, " CLOSE_ZONE");241 break;242 case ATA_SUBCMD_ZAC_MGMT_OUT_FINISH_ZONE:243 trace_seq_printf(p, " FINISH_ZONE");244 break;245 case ATA_SUBCMD_ZAC_MGMT_OUT_OPEN_ZONE:246 trace_seq_printf(p, " OPEN_ZONE");247 break;248 case ATA_SUBCMD_ZAC_MGMT_OUT_RESET_WRITE_POINTER:249 trace_seq_printf(p, " RESET_WRITE_POINTER");250 break;251 }252 break;253 }254 trace_seq_putc(p, 0);255 256 return ret;257}258