summaryrefslogtreecommitdiff
path: root/drivers/nvme/target/trace.h
blob: c14e3249a14dc884c7ed4e571f7f4c1ab6199b36 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
/* 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_req_name(char *name, struct nvmet_req *req)
{
	if (req->ns)
		strncpy(name, req->ns->device_path, DISK_NAME_LEN);
	else
		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_req_name(__entry->disk, req);
		__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_req_name(__entry->disk, req);
	),
	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)

);

#define aer_name(aer) { aer, #aer }

TRACE_EVENT(nvmet_async_event,
	TP_PROTO(struct nvmet_ctrl *ctrl, __le32 result),
	TP_ARGS(ctrl, result),
	TP_STRUCT__entry(
		__field(int, ctrl_id)
		__field(u32, result)
	),
	TP_fast_assign(
		__entry->ctrl_id = ctrl->cntlid;
		__entry->result = (le32_to_cpu(result) & 0xff00) >> 8;
	),
	TP_printk("nvmet%d: NVME_AEN=%#08x [%s]",
		__entry->ctrl_id, __entry->result,
		__print_symbolic(__entry->result,
		aer_name(NVME_AER_NOTICE_NS_CHANGED),
		aer_name(NVME_AER_NOTICE_ANA),
		aer_name(NVME_AER_NOTICE_FW_ACT_STARTING),
		aer_name(NVME_AER_NOTICE_DISC_CHANGED),
		aer_name(NVME_AER_ERROR),
		aer_name(NVME_AER_SMART),
		aer_name(NVME_AER_CSS),
		aer_name(NVME_AER_VS))
	)
);
#undef aer_name

#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>