mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-24 01:41:39 +00:00
![Keith Busch](/assets/img/avatar_default.png)
This will print the disk name to the nvme event trace for io requests so a user can better distinguish traffic to different disks. This can be used to create disk based filters. For example, to see only nvme0n2 traffic: echo "disk == \"nvme0n2\"" > /sys/kernel/debug/tracing/events/nvme/filter Signed-off-by: Keith Busch <keith.busch@intel.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> [hch: turned __assign_disk_name into an inline function] Signed-off-by: Christoph Hellwig <hch@lst.de>
167 lines
5.7 KiB
C
167 lines
5.7 KiB
C
/*
|
|
* NVM Express device driver tracepoints
|
|
* Copyright (c) 2018 Johannes Thumshirn, SUSE Linux GmbH
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope 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.
|
|
*/
|
|
|
|
#undef TRACE_SYSTEM
|
|
#define TRACE_SYSTEM nvme
|
|
|
|
#if !defined(_TRACE_NVME_H) || defined(TRACE_HEADER_MULTI_READ)
|
|
#define _TRACE_NVME_H
|
|
|
|
#include <linux/nvme.h>
|
|
#include <linux/tracepoint.h>
|
|
#include <linux/trace_seq.h>
|
|
|
|
#include "nvme.h"
|
|
|
|
#define nvme_admin_opcode_name(opcode) { opcode, #opcode }
|
|
#define show_admin_opcode_name(val) \
|
|
__print_symbolic(val, \
|
|
nvme_admin_opcode_name(nvme_admin_delete_sq), \
|
|
nvme_admin_opcode_name(nvme_admin_create_sq), \
|
|
nvme_admin_opcode_name(nvme_admin_get_log_page), \
|
|
nvme_admin_opcode_name(nvme_admin_delete_cq), \
|
|
nvme_admin_opcode_name(nvme_admin_create_cq), \
|
|
nvme_admin_opcode_name(nvme_admin_identify), \
|
|
nvme_admin_opcode_name(nvme_admin_abort_cmd), \
|
|
nvme_admin_opcode_name(nvme_admin_set_features), \
|
|
nvme_admin_opcode_name(nvme_admin_get_features), \
|
|
nvme_admin_opcode_name(nvme_admin_async_event), \
|
|
nvme_admin_opcode_name(nvme_admin_ns_mgmt), \
|
|
nvme_admin_opcode_name(nvme_admin_activate_fw), \
|
|
nvme_admin_opcode_name(nvme_admin_download_fw), \
|
|
nvme_admin_opcode_name(nvme_admin_ns_attach), \
|
|
nvme_admin_opcode_name(nvme_admin_keep_alive), \
|
|
nvme_admin_opcode_name(nvme_admin_directive_send), \
|
|
nvme_admin_opcode_name(nvme_admin_directive_recv), \
|
|
nvme_admin_opcode_name(nvme_admin_dbbuf), \
|
|
nvme_admin_opcode_name(nvme_admin_format_nvm), \
|
|
nvme_admin_opcode_name(nvme_admin_security_send), \
|
|
nvme_admin_opcode_name(nvme_admin_security_recv), \
|
|
nvme_admin_opcode_name(nvme_admin_sanitize_nvm))
|
|
|
|
#define nvme_opcode_name(opcode) { opcode, #opcode }
|
|
#define show_nvm_opcode_name(val) \
|
|
__print_symbolic(val, \
|
|
nvme_opcode_name(nvme_cmd_flush), \
|
|
nvme_opcode_name(nvme_cmd_write), \
|
|
nvme_opcode_name(nvme_cmd_read), \
|
|
nvme_opcode_name(nvme_cmd_write_uncor), \
|
|
nvme_opcode_name(nvme_cmd_compare), \
|
|
nvme_opcode_name(nvme_cmd_write_zeroes), \
|
|
nvme_opcode_name(nvme_cmd_dsm), \
|
|
nvme_opcode_name(nvme_cmd_resv_register), \
|
|
nvme_opcode_name(nvme_cmd_resv_report), \
|
|
nvme_opcode_name(nvme_cmd_resv_acquire), \
|
|
nvme_opcode_name(nvme_cmd_resv_release))
|
|
|
|
#define show_opcode_name(qid, opcode) \
|
|
(qid ? show_nvm_opcode_name(opcode) : show_admin_opcode_name(opcode))
|
|
|
|
const char *nvme_trace_parse_admin_cmd(struct trace_seq *p, u8 opcode,
|
|
u8 *cdw10);
|
|
const char *nvme_trace_parse_nvm_cmd(struct trace_seq *p, u8 opcode,
|
|
u8 *cdw10);
|
|
|
|
#define parse_nvme_cmd(qid, opcode, cdw10) \
|
|
(qid ? \
|
|
nvme_trace_parse_nvm_cmd(p, opcode, cdw10) : \
|
|
nvme_trace_parse_admin_cmd(p, opcode, cdw10))
|
|
|
|
const char *nvme_trace_disk_name(struct trace_seq *p, char *name);
|
|
#define __print_disk_name(name) \
|
|
nvme_trace_disk_name(p, name)
|
|
|
|
#ifndef TRACE_HEADER_MULTI_READ
|
|
static inline void __assign_disk_name(char *name, struct gendisk *disk)
|
|
{
|
|
if (disk)
|
|
memcpy(name, disk->disk_name, DISK_NAME_LEN);
|
|
else
|
|
memset(name, 0, DISK_NAME_LEN);
|
|
}
|
|
#endif
|
|
|
|
TRACE_EVENT(nvme_setup_cmd,
|
|
TP_PROTO(struct request *req, struct nvme_command *cmd),
|
|
TP_ARGS(req, cmd),
|
|
TP_STRUCT__entry(
|
|
__array(char, disk, DISK_NAME_LEN)
|
|
__field(int, ctrl_id)
|
|
__field(int, qid)
|
|
__field(u8, opcode)
|
|
__field(u8, flags)
|
|
__field(u16, cid)
|
|
__field(u32, nsid)
|
|
__field(u64, metadata)
|
|
__array(u8, cdw10, 24)
|
|
),
|
|
TP_fast_assign(
|
|
__entry->ctrl_id = nvme_req(req)->ctrl->instance;
|
|
__entry->qid = nvme_req_qid(req);
|
|
__entry->opcode = cmd->common.opcode;
|
|
__entry->flags = cmd->common.flags;
|
|
__entry->cid = cmd->common.command_id;
|
|
__entry->nsid = le32_to_cpu(cmd->common.nsid);
|
|
__entry->metadata = le64_to_cpu(cmd->common.metadata);
|
|
__assign_disk_name(__entry->disk, req->rq_disk);
|
|
memcpy(__entry->cdw10, cmd->common.cdw10,
|
|
sizeof(__entry->cdw10));
|
|
),
|
|
TP_printk("nvme%d: %sqid=%d, cmdid=%u, nsid=%u, flags=0x%x, meta=0x%llx, cmd=(%s %s)",
|
|
__entry->ctrl_id, __print_disk_name(__entry->disk),
|
|
__entry->qid, __entry->cid, __entry->nsid,
|
|
__entry->flags, __entry->metadata,
|
|
show_opcode_name(__entry->qid, __entry->opcode),
|
|
parse_nvme_cmd(__entry->qid, __entry->opcode, __entry->cdw10))
|
|
);
|
|
|
|
TRACE_EVENT(nvme_complete_rq,
|
|
TP_PROTO(struct request *req),
|
|
TP_ARGS(req),
|
|
TP_STRUCT__entry(
|
|
__array(char, disk, DISK_NAME_LEN)
|
|
__field(int, ctrl_id)
|
|
__field(int, qid)
|
|
__field(int, cid)
|
|
__field(u64, result)
|
|
__field(u8, retries)
|
|
__field(u8, flags)
|
|
__field(u16, status)
|
|
),
|
|
TP_fast_assign(
|
|
__entry->ctrl_id = nvme_req(req)->ctrl->instance;
|
|
__entry->qid = nvme_req_qid(req);
|
|
__entry->cid = req->tag;
|
|
__entry->result = le64_to_cpu(nvme_req(req)->result.u64);
|
|
__entry->retries = nvme_req(req)->retries;
|
|
__entry->flags = nvme_req(req)->flags;
|
|
__entry->status = nvme_req(req)->status;
|
|
__assign_disk_name(__entry->disk, req->rq_disk);
|
|
),
|
|
TP_printk("nvme%d: %sqid=%d, cmdid=%u, res=%llu, retries=%u, flags=0x%x, status=%u",
|
|
__entry->ctrl_id, __print_disk_name(__entry->disk),
|
|
__entry->qid, __entry->cid, __entry->result,
|
|
__entry->retries, __entry->flags, __entry->status)
|
|
|
|
);
|
|
|
|
#endif /* _TRACE_NVME_H */
|
|
|
|
#undef TRACE_INCLUDE_PATH
|
|
#define TRACE_INCLUDE_PATH .
|
|
#undef TRACE_INCLUDE_FILE
|
|
#define TRACE_INCLUDE_FILE trace
|
|
|
|
/* This part must be outside protection */
|
|
#include <trace/define_trace.h>
|