1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | /* |
3 | * NVM Express target device driver tracepoints |
4 | * Copyright (c) 2018 Johannes Thumshirn, SUSE Linux GmbH |
5 | * |
6 | * This is entirely based on drivers/nvme/host/trace.h |
7 | */ |
8 | |
9 | #undef TRACE_SYSTEM |
10 | #define TRACE_SYSTEM nvmet |
11 | |
12 | #if !defined(_TRACE_NVMET_H) || defined(TRACE_HEADER_MULTI_READ) |
13 | #define _TRACE_NVMET_H |
14 | |
15 | #include <linux/nvme.h> |
16 | #include <linux/tracepoint.h> |
17 | #include <linux/trace_seq.h> |
18 | |
19 | #include "nvmet.h" |
20 | |
21 | const char *nvmet_trace_parse_admin_cmd(struct trace_seq *p, u8 opcode, |
22 | u8 *cdw10); |
23 | const char *nvmet_trace_parse_nvm_cmd(struct trace_seq *p, u8 opcode, |
24 | u8 *cdw10); |
25 | const char *nvmet_trace_parse_fabrics_cmd(struct trace_seq *p, u8 fctype, |
26 | u8 *spc); |
27 | |
28 | #define parse_nvme_cmd(qid, opcode, fctype, cdw10) \ |
29 | ((opcode) == nvme_fabrics_command ? \ |
30 | nvmet_trace_parse_fabrics_cmd(p, fctype, cdw10) : \ |
31 | (qid ? \ |
32 | nvmet_trace_parse_nvm_cmd(p, opcode, cdw10) : \ |
33 | nvmet_trace_parse_admin_cmd(p, opcode, cdw10))) |
34 | |
35 | const char *nvmet_trace_ctrl_name(struct trace_seq *p, struct nvmet_ctrl *ctrl); |
36 | #define __print_ctrl_name(ctrl) \ |
37 | nvmet_trace_ctrl_name(p, ctrl) |
38 | |
39 | const char *nvmet_trace_disk_name(struct trace_seq *p, char *name); |
40 | #define __print_disk_name(name) \ |
41 | nvmet_trace_disk_name(p, name) |
42 | |
43 | #ifndef TRACE_HEADER_MULTI_READ |
44 | static inline struct nvmet_ctrl *nvmet_req_to_ctrl(struct nvmet_req *req) |
45 | { |
46 | return req->sq->ctrl; |
47 | } |
48 | |
49 | static inline void __assign_req_name(char *name, struct nvmet_req *req) |
50 | { |
51 | if (!req->ns) { |
52 | memset(name, 0, DISK_NAME_LEN); |
53 | return; |
54 | } |
55 | |
56 | strncpy(p: name, q: req->ns->device_path, |
57 | min_t(size_t, DISK_NAME_LEN, strlen(req->ns->device_path))); |
58 | } |
59 | #endif |
60 | |
61 | TRACE_EVENT(nvmet_req_init, |
62 | TP_PROTO(struct nvmet_req *req, struct nvme_command *cmd), |
63 | TP_ARGS(req, cmd), |
64 | TP_STRUCT__entry( |
65 | __field(struct nvme_command *, cmd) |
66 | __field(struct nvmet_ctrl *, ctrl) |
67 | __array(char, disk, DISK_NAME_LEN) |
68 | __field(int, qid) |
69 | __field(u16, cid) |
70 | __field(u8, opcode) |
71 | __field(u8, fctype) |
72 | __field(u8, flags) |
73 | __field(u32, nsid) |
74 | __field(u64, metadata) |
75 | __array(u8, cdw10, 24) |
76 | ), |
77 | TP_fast_assign( |
78 | __entry->cmd = cmd; |
79 | __entry->ctrl = nvmet_req_to_ctrl(req); |
80 | __assign_req_name(__entry->disk, req); |
81 | __entry->qid = req->sq->qid; |
82 | __entry->cid = cmd->common.command_id; |
83 | __entry->opcode = cmd->common.opcode; |
84 | __entry->fctype = cmd->fabrics.fctype; |
85 | __entry->flags = cmd->common.flags; |
86 | __entry->nsid = le32_to_cpu(cmd->common.nsid); |
87 | __entry->metadata = le64_to_cpu(cmd->common.metadata); |
88 | memcpy(__entry->cdw10, &cmd->common.cdw10, |
89 | sizeof(__entry->cdw10)); |
90 | ), |
91 | TP_printk("nvmet%s: %sqid=%d, cmdid=%u, nsid=%u, flags=%#x, " |
92 | "meta=%#llx, cmd=(%s, %s)" , |
93 | __print_ctrl_name(__entry->ctrl), |
94 | __print_disk_name(__entry->disk), |
95 | __entry->qid, __entry->cid, __entry->nsid, |
96 | __entry->flags, __entry->metadata, |
97 | show_opcode_name(__entry->qid, __entry->opcode, |
98 | __entry->fctype), |
99 | parse_nvme_cmd(__entry->qid, __entry->opcode, |
100 | __entry->fctype, __entry->cdw10)) |
101 | ); |
102 | |
103 | TRACE_EVENT(nvmet_req_complete, |
104 | TP_PROTO(struct nvmet_req *req), |
105 | TP_ARGS(req), |
106 | TP_STRUCT__entry( |
107 | __field(struct nvmet_ctrl *, ctrl) |
108 | __array(char, disk, DISK_NAME_LEN) |
109 | __field(int, qid) |
110 | __field(int, cid) |
111 | __field(u64, result) |
112 | __field(u16, status) |
113 | ), |
114 | TP_fast_assign( |
115 | __entry->ctrl = nvmet_req_to_ctrl(req); |
116 | __entry->qid = req->cq->qid; |
117 | __entry->cid = req->cqe->command_id; |
118 | __entry->result = le64_to_cpu(req->cqe->result.u64); |
119 | __entry->status = le16_to_cpu(req->cqe->status) >> 1; |
120 | __assign_req_name(__entry->disk, req); |
121 | ), |
122 | TP_printk("nvmet%s: %sqid=%d, cmdid=%u, res=%#llx, status=%#x" , |
123 | __print_ctrl_name(__entry->ctrl), |
124 | __print_disk_name(__entry->disk), |
125 | __entry->qid, __entry->cid, __entry->result, __entry->status) |
126 | |
127 | ); |
128 | |
129 | #define aer_name(aer) { aer, #aer } |
130 | |
131 | TRACE_EVENT(nvmet_async_event, |
132 | TP_PROTO(struct nvmet_ctrl *ctrl, __le32 result), |
133 | TP_ARGS(ctrl, result), |
134 | TP_STRUCT__entry( |
135 | __field(int, ctrl_id) |
136 | __field(u32, result) |
137 | ), |
138 | TP_fast_assign( |
139 | __entry->ctrl_id = ctrl->cntlid; |
140 | __entry->result = (le32_to_cpu(result) & 0xff00) >> 8; |
141 | ), |
142 | TP_printk("nvmet%d: NVME_AEN=%#08x [%s]" , |
143 | __entry->ctrl_id, __entry->result, |
144 | __print_symbolic(__entry->result, |
145 | aer_name(NVME_AER_NOTICE_NS_CHANGED), |
146 | aer_name(NVME_AER_NOTICE_ANA), |
147 | aer_name(NVME_AER_NOTICE_FW_ACT_STARTING), |
148 | aer_name(NVME_AER_NOTICE_DISC_CHANGED), |
149 | aer_name(NVME_AER_ERROR), |
150 | aer_name(NVME_AER_SMART), |
151 | aer_name(NVME_AER_CSS), |
152 | aer_name(NVME_AER_VS)) |
153 | ) |
154 | ); |
155 | #undef aer_name |
156 | |
157 | #endif /* _TRACE_NVMET_H */ |
158 | |
159 | #undef TRACE_INCLUDE_PATH |
160 | #define TRACE_INCLUDE_PATH . |
161 | #undef TRACE_INCLUDE_FILE |
162 | #define TRACE_INCLUDE_FILE trace |
163 | |
164 | /* This part must be outside protection */ |
165 | #include <trace/define_trace.h> |
166 | |