korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-12-15 15:04:27 +08:00
Code Issues Packages Projects Releases Wiki Activity
94ea6edd49
linux/drivers/ata/libata-trace.c

258 lines
6.6 KiB
C
Raw Normal View History

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 18 Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 52 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com> Reviewed-by: Steve Winslow <swinslow@gmail.com> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190519154042.342335923@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-19 21:51:48 +08:00
// SPDX-License-Identifier: GPL-2.0-or-later
libata: Add tracepoints Add some tracepoints for ata_qc_issue, ata_qc_complete, and ata_eh_link_autopsy. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Tejun Heo <tj@kernel.org>
2015-03-27 23:46:38 +08:00
/*
* libata-trace.c - trace functions for libata
*
* Copyright 2015 Hannes Reinecke
* Copyright 2015 SUSE Linux GmbH
*/
#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;
}
ata: libata: tracepoints for bus-master DMA Add tracepoints for bus-master DMA and taskfile related functions. That allows us to drop the relevant DPRINTK() calls. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
2021-12-21 15:20:31 +08:00
const char *
libata_trace_parse_host_stat(struct trace_seq *p, unsigned char host_stat)
{
const char *ret = trace_seq_buffer_ptr(p);
trace_seq_printf(p, "{ ");
if (host_stat & ATA_DMA_INTR)
trace_seq_printf(p, "INTR ");
if (host_stat & ATA_DMA_ERR)
trace_seq_printf(p, "ERR ");
if (host_stat & ATA_DMA_ACTIVE)
trace_seq_printf(p, "ACTIVE ");
trace_seq_putc(p, '}');
trace_seq_putc(p, 0);
return ret;
}
libata: Add tracepoints Add some tracepoints for ata_qc_issue, ata_qc_complete, and ata_eh_link_autopsy. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Tejun Heo <tj@kernel.org>
2015-03-27 23:46:38 +08:00
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 ");
ata: scsi: rename flag ATA_QCFLAG_FAILED to ATA_QCFLAG_EH The name ATA_QCFLAG_FAILED is misleading since it does not mean that a QC completed in error, or that it didn't complete at all. It means that libata decided to schedule EH for the QC, so the QC is now owned by the libata error handler (EH). The normal execution path is responsible for not accessing a QC owned by EH. libata core enforces the rule by returning NULL from ata_qc_from_tag() for QCs owned by EH. It is quite easy to mistake that a QC marked with ATA_QCFLAG_FAILED was an error. However, a QC that was actually an error is instead indicated by having qc->err_mask set. E.g. when we have a NCQ error, we abort all QCs, which currently will mark all QCs as ATA_QCFLAG_FAILED. However, it will only be a single QC that is an error (i.e. has qc->err_mask set). Rename ATA_QCFLAG_FAILED to ATA_QCFLAG_EH to more clearly highlight that this flag simply means that a QC is now owned by EH. This new name will not mislead to think that the QC was an error (which is instead indicated by having qc->err_mask set). This also makes it more obvious that the EH code skips all QCs that do not have ATA_QCFLAG_EH set (rather than ATA_QCFLAG_FAILED), since the EH code should simply only care about QCs that are owned by EH itself. Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com> Reviewed-by: John Garry <john.g.garry@oracle.com> Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
2022-12-30 00:59:57 +08:00
if (qc_flags & ATA_QCFLAG_EH)
libata: Add tracepoints Add some tracepoints for ata_qc_issue, ata_qc_complete, and ata_eh_link_autopsy. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Tejun Heo <tj@kernel.org>
2015-03-27 23:46:38 +08:00
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;
}
libata-trace: decode subcommands Some commands like FPDMA RECEIVE or NCQ NON DATA can encapsulate other commands to NCQ transport. So decode the subcmds, too. Signed-off-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-04-25 18:45:49 +08:00
ata: libata-sff: tracepoints for HSM state machine Add tracepoints for the HSM state machine and drop DPRINTK calls Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
2021-12-21 15:20:32 +08:00
const char *
libata_trace_parse_tf_flags(struct trace_seq *p, unsigned int tf_flags)
{
const char *ret = trace_seq_buffer_ptr(p);
trace_seq_printf(p, "%x", tf_flags);
if (tf_flags) {
trace_seq_printf(p, "{ ");
if (tf_flags & ATA_TFLAG_LBA48)
trace_seq_printf(p, "LBA48 ");
if (tf_flags & ATA_TFLAG_ISADDR)
trace_seq_printf(p, "ISADDR ");
if (tf_flags & ATA_TFLAG_DEVICE)
trace_seq_printf(p, "DEV ");
if (tf_flags & ATA_TFLAG_WRITE)
trace_seq_printf(p, "WRITE ");
if (tf_flags & ATA_TFLAG_LBA)
trace_seq_printf(p, "LBA ");
if (tf_flags & ATA_TFLAG_FUA)
trace_seq_printf(p, "FUA ");
if (tf_flags & ATA_TFLAG_POLLING)
trace_seq_printf(p, "POLL ");
trace_seq_putc(p, '}');
}
trace_seq_putc(p, 0);
return ret;
}
libata-trace: decode subcommands Some commands like FPDMA RECEIVE or NCQ NON DATA can encapsulate other commands to NCQ transport. So decode the subcmds, too. Signed-off-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-04-25 18:45:49 +08:00
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;
libata: implement ZBC IN translation ZAC drives implement a 'ZAC Management In' command template, which maps onto the ZBC IN command. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-04-25 18:45:52 +08:00
case ATA_SUBCMD_FPDMA_RECV_ZAC_MGMT_IN:
trace_seq_printf(p, " ZAC_MGMT_IN");
break;
libata-trace: decode subcommands Some commands like FPDMA RECEIVE or NCQ NON DATA can encapsulate other commands to NCQ transport. So decode the subcmds, too. Signed-off-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-04-25 18:45:49 +08:00
}
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;
libata: NCQ encapsulation for ZAC MANAGEMENT OUT Add NCQ encapsulation for ZAC MANAGEMENT OUT and evaluate NCQ Non-Data log pages to figure out if NCQ encapsulation is supported. Signed-off-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-04-25 18:45:54 +08:00
case ATA_SUBCMD_NCQ_NON_DATA_ZAC_MGMT_OUT:
trace_seq_printf(p, " ZAC_MGMT_OUT");
break;
libata-trace: decode subcommands Some commands like FPDMA RECEIVE or NCQ NON DATA can encapsulate other commands to NCQ transport. So decode the subcmds, too. Signed-off-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-04-25 18:45:49 +08:00
}
break;
libata: implement ZBC IN translation ZAC drives implement a 'ZAC Management In' command template, which maps onto the ZBC IN command. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-04-25 18:45:52 +08:00
case ATA_CMD_ZAC_MGMT_IN:
switch (feature) {
case ATA_SUBCMD_ZAC_MGMT_IN_REPORT_ZONES:
trace_seq_printf(p, " REPORT_ZONES");
break;
}
break;
libata: Implement ZBC OUT translation ZAC drives implement a 'ZAC Management Out' command template, which maps onto the ZBC OUT command. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-04-25 18:45:53 +08:00
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;
libata-trace: decode subcommands Some commands like FPDMA RECEIVE or NCQ NON DATA can encapsulate other commands to NCQ transport. So decode the subcmds, too. Signed-off-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-04-25 18:45:49 +08:00
}
trace_seq_putc(p, 0);
return ret;
}
Reference in New Issue Copy Permalink