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linux/drivers/ata/libata-trace.c

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/*
* libata-trace.c - trace functions for libata
*
* Copyright 2015 Hannes Reinecke
* Copyright 2015 SUSE Linux GmbH
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/kernel.h>
#include <linux/trace_seq.h>
#include <trace/events/libata.h>
const char *
libata_trace_parse_status(struct trace_seq *p, unsigned char status)
{
const char *ret = trace_seq_buffer_ptr(p);
trace_seq_printf(p, "{ ");
if (status & ATA_BUSY)
trace_seq_printf(p, "BUSY ");
if (status & ATA_DRDY)
trace_seq_printf(p, "DRDY ");
if (status & ATA_DF)
trace_seq_printf(p, "DF ");
if (status & ATA_DSC)
trace_seq_printf(p, "DSC ");
if (status & ATA_DRQ)
trace_seq_printf(p, "DRQ ");
if (status & ATA_CORR)
trace_seq_printf(p, "CORR ");
if (status & ATA_SENSE)
trace_seq_printf(p, "SENSE ");
if (status & ATA_ERR)
trace_seq_printf(p, "ERR ");
trace_seq_putc(p, '}');
trace_seq_putc(p, 0);
return ret;
}
const char *
libata_trace_parse_eh_action(struct trace_seq *p, unsigned int eh_action)
{
const char *ret = trace_seq_buffer_ptr(p);
trace_seq_printf(p, "%x", eh_action);
if (eh_action) {
trace_seq_printf(p, "{ ");
if (eh_action & ATA_EH_REVALIDATE)
trace_seq_printf(p, "REVALIDATE ");
if (eh_action & (ATA_EH_SOFTRESET | ATA_EH_HARDRESET))
trace_seq_printf(p, "RESET ");
else if (eh_action & ATA_EH_SOFTRESET)
trace_seq_printf(p, "SOFTRESET ");
else if (eh_action & ATA_EH_HARDRESET)
trace_seq_printf(p, "HARDRESET ");
if (eh_action & ATA_EH_ENABLE_LINK)
trace_seq_printf(p, "ENABLE_LINK ");
if (eh_action & ATA_EH_PARK)
trace_seq_printf(p, "PARK ");
trace_seq_putc(p, '}');
}
trace_seq_putc(p, 0);
return ret;
}
const char *
libata_trace_parse_eh_err_mask(struct trace_seq *p, unsigned int eh_err_mask)
{
const char *ret = trace_seq_buffer_ptr(p);
trace_seq_printf(p, "%x", eh_err_mask);
if (eh_err_mask) {
trace_seq_printf(p, "{ ");
if (eh_err_mask & AC_ERR_DEV)
trace_seq_printf(p, "DEV ");
if (eh_err_mask & AC_ERR_HSM)
trace_seq_printf(p, "HSM ");
if (eh_err_mask & AC_ERR_TIMEOUT)
trace_seq_printf(p, "TIMEOUT ");
if (eh_err_mask & AC_ERR_MEDIA)
trace_seq_printf(p, "MEDIA ");
if (eh_err_mask & AC_ERR_ATA_BUS)
trace_seq_printf(p, "ATA_BUS ");
if (eh_err_mask & AC_ERR_HOST_BUS)
trace_seq_printf(p, "HOST_BUS ");
if (eh_err_mask & AC_ERR_SYSTEM)
trace_seq_printf(p, "SYSTEM ");
if (eh_err_mask & AC_ERR_INVALID)
trace_seq_printf(p, "INVALID ");
if (eh_err_mask & AC_ERR_OTHER)
trace_seq_printf(p, "OTHER ");
if (eh_err_mask & AC_ERR_NODEV_HINT)
trace_seq_printf(p, "NODEV_HINT ");
if (eh_err_mask & AC_ERR_NCQ)
trace_seq_printf(p, "NCQ ");
trace_seq_putc(p, '}');
}
trace_seq_putc(p, 0);
return ret;
}
const char *
libata_trace_parse_qc_flags(struct trace_seq *p, unsigned int qc_flags)
{
const char *ret = trace_seq_buffer_ptr(p);
trace_seq_printf(p, "%x", qc_flags);
if (qc_flags) {
trace_seq_printf(p, "{ ");
if (qc_flags & ATA_QCFLAG_ACTIVE)
trace_seq_printf(p, "ACTIVE ");
if (qc_flags & ATA_QCFLAG_DMAMAP)
trace_seq_printf(p, "DMAMAP ");
if (qc_flags & ATA_QCFLAG_IO)
trace_seq_printf(p, "IO ");
if (qc_flags & ATA_QCFLAG_RESULT_TF)
trace_seq_printf(p, "RESULT_TF ");
if (qc_flags & ATA_QCFLAG_CLEAR_EXCL)
trace_seq_printf(p, "CLEAR_EXCL ");
if (qc_flags & ATA_QCFLAG_QUIET)
trace_seq_printf(p, "QUIET ");
if (qc_flags & ATA_QCFLAG_RETRY)
trace_seq_printf(p, "RETRY ");
if (qc_flags & ATA_QCFLAG_FAILED)
trace_seq_printf(p, "FAILED ");
if (qc_flags & ATA_QCFLAG_SENSE_VALID)
trace_seq_printf(p, "SENSE_VALID ");
if (qc_flags & ATA_QCFLAG_EH_SCHEDULED)
trace_seq_printf(p, "EH_SCHEDULED ");
trace_seq_putc(p, '}');
}
trace_seq_putc(p, 0);
return ret;
}
const char *
libata_trace_parse_subcmd(struct trace_seq *p, unsigned char cmd,
unsigned char feature, unsigned char hob_nsect)
{
const char *ret = trace_seq_buffer_ptr(p);
switch (cmd) {
case ATA_CMD_FPDMA_RECV:
switch (hob_nsect & 0x5f) {
case ATA_SUBCMD_FPDMA_RECV_RD_LOG_DMA_EXT:
trace_seq_printf(p, " READ_LOG_DMA_EXT");
break;
case ATA_SUBCMD_FPDMA_RECV_ZAC_MGMT_IN:
trace_seq_printf(p, " ZAC_MGMT_IN");
break;
}
break;
case ATA_CMD_FPDMA_SEND:
switch (hob_nsect & 0x5f) {
case ATA_SUBCMD_FPDMA_SEND_WR_LOG_DMA_EXT:
trace_seq_printf(p, " WRITE_LOG_DMA_EXT");
break;
case ATA_SUBCMD_FPDMA_SEND_DSM:
trace_seq_printf(p, " DATASET_MANAGEMENT");
break;
}
break;
case ATA_CMD_NCQ_NON_DATA:
switch (feature) {
case ATA_SUBCMD_NCQ_NON_DATA_ABORT_QUEUE:
trace_seq_printf(p, " ABORT_QUEUE");
break;
case ATA_SUBCMD_NCQ_NON_DATA_SET_FEATURES:
trace_seq_printf(p, " SET_FEATURES");
break;
case ATA_SUBCMD_NCQ_NON_DATA_ZERO_EXT:
trace_seq_printf(p, " ZERO_EXT");
break;
case ATA_SUBCMD_NCQ_NON_DATA_ZAC_MGMT_OUT:
trace_seq_printf(p, " ZAC_MGMT_OUT");
break;
}
break;
case ATA_CMD_ZAC_MGMT_IN:
switch (feature) {
case ATA_SUBCMD_ZAC_MGMT_IN_REPORT_ZONES:
trace_seq_printf(p, " REPORT_ZONES");
break;
}
break;
case ATA_CMD_ZAC_MGMT_OUT:
switch (feature) {
case ATA_SUBCMD_ZAC_MGMT_OUT_CLOSE_ZONE:
trace_seq_printf(p, " CLOSE_ZONE");
break;
case ATA_SUBCMD_ZAC_MGMT_OUT_FINISH_ZONE:
trace_seq_printf(p, " FINISH_ZONE");
break;
case ATA_SUBCMD_ZAC_MGMT_OUT_OPEN_ZONE:
trace_seq_printf(p, " OPEN_ZONE");
break;
case ATA_SUBCMD_ZAC_MGMT_OUT_RESET_WRITE_POINTER:
trace_seq_printf(p, " RESET_WRITE_POINTER");
break;
}
break;
}
trace_seq_putc(p, 0);
return ret;
}
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