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