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1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * NVM Express device driver tracepoints
4 * Copyright (c) 2018 Johannes Thumshirn, SUSE Linux GmbH
5 */
6
7#undef TRACE_SYSTEM
8#define TRACE_SYSTEM nvme
9
10#if !defined(_TRACE_NVME_H) || defined(TRACE_HEADER_MULTI_READ)
11#define _TRACE_NVME_H
12
13#include <linux/nvme.h>
14#include <linux/tracepoint.h>
15#include <linux/trace_seq.h>
16
17#include "nvme.h"
18
19const char *nvme_trace_parse_admin_cmd(struct trace_seq *p, u8 opcode,
20 u8 *cdw10);
21const char *nvme_trace_parse_nvm_cmd(struct trace_seq *p, u8 opcode,
22 u8 *cdw10);
23const char *nvme_trace_parse_fabrics_cmd(struct trace_seq *p, u8 fctype,
24 u8 *spc);
25
26#define parse_nvme_cmd(qid, opcode, fctype, cdw10) \
27 ((opcode) == nvme_fabrics_command ? \
28 nvme_trace_parse_fabrics_cmd(p, fctype, cdw10) : \
29 ((qid) ? \
30 nvme_trace_parse_nvm_cmd(p, opcode, cdw10) : \
31 nvme_trace_parse_admin_cmd(p, opcode, cdw10)))
32
33const char *nvme_trace_disk_name(struct trace_seq *p, char *name);
34#define __print_disk_name(name) \
35 nvme_trace_disk_name(p, name)
36
37#ifndef TRACE_HEADER_MULTI_READ
38static inline void __assign_disk_name(char *name, struct gendisk *disk)
39{
40 if (disk)
41 memcpy(name, disk->disk_name, DISK_NAME_LEN);
42 else
43 memset(name, 0, DISK_NAME_LEN);
44}
45#endif
46
47TRACE_EVENT(nvme_setup_cmd,
48 TP_PROTO(struct request *req, struct nvme_command *cmd),
49 TP_ARGS(req, cmd),
50 TP_STRUCT__entry(
51 __array(char, disk, DISK_NAME_LEN)
52 __field(int, ctrl_id)
53 __field(int, qid)
54 __field(u8, opcode)
55 __field(u8, flags)
56 __field(u8, fctype)
57 __field(u16, cid)
58 __field(u32, nsid)
59 __field(bool, metadata)
60 __array(u8, cdw10, 24)
61 ),
62 TP_fast_assign(
63 __entry->ctrl_id = nvme_req(req)->ctrl->instance;
64 __entry->qid = nvme_req_qid(req);
65 __entry->opcode = cmd->common.opcode;
66 __entry->flags = cmd->common.flags;
67 __entry->cid = cmd->common.command_id;
68 __entry->nsid = le32_to_cpu(cmd->common.nsid);
69 __entry->metadata = !!blk_integrity_rq(req);
70 __entry->fctype = cmd->fabrics.fctype;
71 __assign_disk_name(__entry->disk, req->q->disk);
72 memcpy(__entry->cdw10, &cmd->common.cdws,
73 sizeof(__entry->cdw10));
74 ),
75 TP_printk("nvme%d: %sqid=%d, cmdid=%u, nsid=%u, flags=0x%x, meta=0x%x, cmd=(%s %s)",
76 __entry->ctrl_id, __print_disk_name(__entry->disk),
77 __entry->qid, __entry->cid, __entry->nsid,
78 __entry->flags, __entry->metadata,
79 show_opcode_name(__entry->qid, __entry->opcode,
80 __entry->fctype),
81 parse_nvme_cmd(__entry->qid, __entry->opcode,
82 __entry->fctype, __entry->cdw10))
83);
84
85TRACE_EVENT(nvme_complete_rq,
86 TP_PROTO(struct request *req),
87 TP_ARGS(req),
88 TP_STRUCT__entry(
89 __array(char, disk, DISK_NAME_LEN)
90 __field(int, ctrl_id)
91 __field(int, qid)
92 __field(int, cid)
93 __field(u64, result)
94 __field(u8, retries)
95 __field(u8, flags)
96 __field(u16, status)
97 ),
98 TP_fast_assign(
99 __entry->ctrl_id = nvme_req(req)->ctrl->instance;
100 __entry->qid = nvme_req_qid(req);
101 __entry->cid = nvme_req(req)->cmd->common.command_id;
102 __entry->result = le64_to_cpu(nvme_req(req)->result.u64);
103 __entry->retries = nvme_req(req)->retries;
104 __entry->flags = nvme_req(req)->flags;
105 __entry->status = nvme_req(req)->status;
106 __assign_disk_name(__entry->disk, req->q->disk);
107 ),
108 TP_printk("nvme%d: %sqid=%d, cmdid=%u, res=%#llx, retries=%u, flags=0x%x, status=%#x",
109 __entry->ctrl_id, __print_disk_name(__entry->disk),
110 __entry->qid, __entry->cid, __entry->result,
111 __entry->retries, __entry->flags, __entry->status)
112
113);
114
115#define aer_name(aer) { aer, #aer }
116
117TRACE_EVENT(nvme_async_event,
118 TP_PROTO(struct nvme_ctrl *ctrl, u32 result),
119 TP_ARGS(ctrl, result),
120 TP_STRUCT__entry(
121 __field(int, ctrl_id)
122 __field(u32, result)
123 ),
124 TP_fast_assign(
125 __entry->ctrl_id = ctrl->instance;
126 __entry->result = result;
127 ),
128 TP_printk("nvme%d: NVME_AEN=%#08x [%s]",
129 __entry->ctrl_id, __entry->result,
130 __print_symbolic(__entry->result & 0x7,
131 aer_name(NVME_AER_ERROR),
132 aer_name(NVME_AER_SMART),
133 aer_name(NVME_AER_NOTICE),
134 aer_name(NVME_AER_CSS),
135 aer_name(NVME_AER_VS))
136 )
137);
138
139#undef aer_name
140
141TRACE_EVENT(nvme_sq,
142 TP_PROTO(struct request *req, __le16 sq_head, int sq_tail),
143 TP_ARGS(req, sq_head, sq_tail),
144 TP_STRUCT__entry(
145 __field(int, ctrl_id)
146 __array(char, disk, DISK_NAME_LEN)
147 __field(int, qid)
148 __field(u16, sq_head)
149 __field(u16, sq_tail)
150 ),
151 TP_fast_assign(
152 __entry->ctrl_id = nvme_req(req)->ctrl->instance;
153 __assign_disk_name(__entry->disk, req->q->disk);
154 __entry->qid = nvme_req_qid(req);
155 __entry->sq_head = le16_to_cpu(sq_head);
156 __entry->sq_tail = sq_tail;
157 ),
158 TP_printk("nvme%d: %sqid=%d, head=%u, tail=%u",
159 __entry->ctrl_id, __print_disk_name(__entry->disk),
160 __entry->qid, __entry->sq_head, __entry->sq_tail
161 )
162);
163
164#endif /* _TRACE_NVME_H */
165
166#undef TRACE_INCLUDE_PATH
167#define TRACE_INCLUDE_PATH .
168#undef TRACE_INCLUDE_FILE
169#define TRACE_INCLUDE_FILE trace
170
171/* This part must be outside protection */
172#include <trace/define_trace.h>