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/* SPDX-License-Identifier: GPL-2.0 */
/*
* NVM Express target device driver tracepoints
* Copyright (c) 2018 Johannes Thumshirn, SUSE Linux GmbH
*
* This is entirely based on drivers/nvme/host/trace.h
*/
#undef TRACE_SYSTEM
#define TRACE_SYSTEM nvmet
#if !defined(_TRACE_NVMET_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_NVMET_H
#include <linux/nvme.h>
#include <linux/tracepoint.h>
#include <linux/trace_seq.h>
#include "nvmet.h"
const char *nvmet_trace_parse_admin_cmd(struct trace_seq *p, u8 opcode,
u8 *cdw10);
const char *nvmet_trace_parse_nvm_cmd(struct trace_seq *p, u8 opcode,
u8 *cdw10);
const char *nvmet_trace_parse_fabrics_cmd(struct trace_seq *p, u8 fctype,
u8 *spc);
#define parse_nvme_cmd(qid, opcode, fctype, cdw10) \
((opcode) == nvme_fabrics_command ? \
nvmet_trace_parse_fabrics_cmd(p, fctype, cdw10) : \
(qid ? \
nvmet_trace_parse_nvm_cmd(p, opcode, cdw10) : \
nvmet_trace_parse_admin_cmd(p, opcode, cdw10)))
const char *nvmet_trace_ctrl_name(struct trace_seq *p, struct nvmet_ctrl *ctrl);
#define __print_ctrl_name(ctrl) \
nvmet_trace_ctrl_name(p, ctrl)
const char *nvmet_trace_disk_name(struct trace_seq *p, char *name);
#define __print_disk_name(name) \
nvmet_trace_disk_name(p, name)
#ifndef TRACE_HEADER_MULTI_READ
static inline struct nvmet_ctrl *nvmet_req_to_ctrl(struct nvmet_req *req)
{
return req->sq->ctrl;
}
static inline void __assign_disk_name(char *name, struct nvmet_req *req,
bool init)
{
struct nvmet_ctrl *ctrl = nvmet_req_to_ctrl(req);
struct nvmet_ns *ns;
if ((init && req->sq->qid) || (!init && req->cq->qid)) {
ns = nvmet_find_namespace(ctrl, req->cmd->rw.nsid);
strncpy(name, ns->device_path, DISK_NAME_LEN);
return;
}
memset(name, 0, DISK_NAME_LEN);
}
#endif
TRACE_EVENT(nvmet_req_init,
TP_PROTO(struct nvmet_req *req, struct nvme_command *cmd),
TP_ARGS(req, cmd),
TP_STRUCT__entry(
__field(struct nvme_command *, cmd)
__field(struct nvmet_ctrl *, ctrl)
__array(char, disk, DISK_NAME_LEN)
__field(int, qid)
__field(u16, cid)
__field(u8, opcode)
__field(u8, fctype)
__field(u8, flags)
__field(u32, nsid)
__field(u64, metadata)
__array(u8, cdw10, 24)
),
TP_fast_assign(
__entry->cmd = cmd;
__entry->ctrl = nvmet_req_to_ctrl(req);
__assign_disk_name(__entry->disk, req, true);
__entry->qid = req->sq->qid;
__entry->cid = cmd->common.command_id;
__entry->opcode = cmd->common.opcode;
__entry->fctype = cmd->fabrics.fctype;
__entry->flags = cmd->common.flags;
__entry->nsid = le32_to_cpu(cmd->common.nsid);
__entry->metadata = le64_to_cpu(cmd->common.metadata);
memcpy(__entry->cdw10, &cmd->common.cdw10,
sizeof(__entry->cdw10));
),
TP_printk("nvmet%s: %sqid=%d, cmdid=%u, nsid=%u, flags=%#x, "
"meta=%#llx, cmd=(%s, %s)",
__print_ctrl_name(__entry->ctrl),
__print_disk_name(__entry->disk),
__entry->qid, __entry->cid, __entry->nsid,
__entry->flags, __entry->metadata,
show_opcode_name(__entry->qid, __entry->opcode,
__entry->fctype),
parse_nvme_cmd(__entry->qid, __entry->opcode,
__entry->fctype, __entry->cdw10))
);
TRACE_EVENT(nvmet_req_complete,
TP_PROTO(struct nvmet_req *req),
TP_ARGS(req),
TP_STRUCT__entry(
__field(struct nvmet_ctrl *, ctrl)
__array(char, disk, DISK_NAME_LEN)
__field(int, qid)
__field(int, cid)
__field(u64, result)
__field(u16, status)
),
TP_fast_assign(
__entry->ctrl = nvmet_req_to_ctrl(req);
__entry->qid = req->cq->qid;
__entry->cid = req->cqe->command_id;
__entry->result = le64_to_cpu(req->cqe->result.u64);
__entry->status = le16_to_cpu(req->cqe->status) >> 1;
__assign_disk_name(__entry->disk, req, false);
),
TP_printk("nvmet%s: %sqid=%d, cmdid=%u, res=%#llx, status=%#x",
__print_ctrl_name(__entry->ctrl),
__print_disk_name(__entry->disk),
__entry->qid, __entry->cid, __entry->result, __entry->status)
);
#endif /* _TRACE_NVMET_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>
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