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_id(struct trace_seq *p, u16 ctrl_id); |
36 | #define __print_ctrl_id(ctrl_id) \ |
37 | nvmet_trace_ctrl_id(p, ctrl_id) |
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 u16 nvmet_req_to_ctrl_id(struct nvmet_req *req) |
45 | { |
46 | /* |
47 | * The queue and controller pointers are not valid until an association |
48 | * has been established. |
49 | */ |
50 | if (!req->sq || !req->sq->ctrl) |
51 | return 0; |
52 | return req->sq->ctrl->cntlid; |
53 | } |
54 | |
55 | static inline void __assign_req_name(char *name, struct nvmet_req *req) |
56 | { |
57 | if (!req->ns) { |
58 | memset(name, 0, DISK_NAME_LEN); |
59 | return; |
60 | } |
61 | |
62 | strscpy_pad(name, req->ns->device_path, DISK_NAME_LEN); |
63 | } |
64 | #endif |
65 | |
66 | TRACE_EVENT(nvmet_req_init, |
67 | TP_PROTO(struct nvmet_req *req, struct nvme_command *cmd), |
68 | TP_ARGS(req, cmd), |
69 | TP_STRUCT__entry( |
70 | __field(struct nvme_command *, cmd) |
71 | __field(u16, ctrl_id) |
72 | __array(char, disk, DISK_NAME_LEN) |
73 | __field(int, qid) |
74 | __field(u16, cid) |
75 | __field(u8, opcode) |
76 | __field(u8, fctype) |
77 | __field(u8, flags) |
78 | __field(u32, nsid) |
79 | __field(u64, metadata) |
80 | __array(u8, cdw10, 24) |
81 | ), |
82 | TP_fast_assign( |
83 | __entry->cmd = cmd; |
84 | __entry->ctrl_id = nvmet_req_to_ctrl_id(req); |
85 | __assign_req_name(__entry->disk, req); |
86 | __entry->qid = req->sq->qid; |
87 | __entry->cid = cmd->common.command_id; |
88 | __entry->opcode = cmd->common.opcode; |
89 | __entry->fctype = cmd->fabrics.fctype; |
90 | __entry->flags = cmd->common.flags; |
91 | __entry->nsid = le32_to_cpu(cmd->common.nsid); |
92 | __entry->metadata = le64_to_cpu(cmd->common.metadata); |
93 | memcpy(__entry->cdw10, &cmd->common.cdws, |
94 | sizeof(__entry->cdw10)); |
95 | ), |
96 | TP_printk("nvmet%s: %sqid=%d, cmdid=%u, nsid=%u, flags=%#x, " |
97 | "meta=%#llx, cmd=(%s, %s)" , |
98 | __print_ctrl_id(__entry->ctrl_id), |
99 | __print_disk_name(__entry->disk), |
100 | __entry->qid, __entry->cid, __entry->nsid, |
101 | __entry->flags, __entry->metadata, |
102 | show_opcode_name(__entry->qid, __entry->opcode, |
103 | __entry->fctype), |
104 | parse_nvme_cmd(__entry->qid, __entry->opcode, |
105 | __entry->fctype, __entry->cdw10)) |
106 | ); |
107 | |
108 | TRACE_EVENT(nvmet_req_complete, |
109 | TP_PROTO(struct nvmet_req *req), |
110 | TP_ARGS(req), |
111 | TP_STRUCT__entry( |
112 | __field(u16, ctrl_id) |
113 | __array(char, disk, DISK_NAME_LEN) |
114 | __field(int, qid) |
115 | __field(int, cid) |
116 | __field(u64, result) |
117 | __field(u16, status) |
118 | ), |
119 | TP_fast_assign( |
120 | __entry->ctrl_id = nvmet_req_to_ctrl_id(req); |
121 | __entry->qid = req->cq->qid; |
122 | __entry->cid = req->cqe->command_id; |
123 | __entry->result = le64_to_cpu(req->cqe->result.u64); |
124 | __entry->status = le16_to_cpu(req->cqe->status) >> 1; |
125 | __assign_req_name(__entry->disk, req); |
126 | ), |
127 | TP_printk("nvmet%s: %sqid=%d, cmdid=%u, res=%#llx, status=%#x" , |
128 | __print_ctrl_id(__entry->ctrl_id), |
129 | __print_disk_name(__entry->disk), |
130 | __entry->qid, __entry->cid, __entry->result, __entry->status) |
131 | |
132 | ); |
133 | |
134 | #define aer_name(aer) { aer, #aer } |
135 | |
136 | TRACE_EVENT(nvmet_async_event, |
137 | TP_PROTO(struct nvmet_ctrl *ctrl, __le32 result), |
138 | TP_ARGS(ctrl, result), |
139 | TP_STRUCT__entry( |
140 | __field(int, ctrl_id) |
141 | __field(u32, result) |
142 | ), |
143 | TP_fast_assign( |
144 | __entry->ctrl_id = ctrl->cntlid; |
145 | __entry->result = (le32_to_cpu(result) & 0xff00) >> 8; |
146 | ), |
147 | TP_printk("nvmet%d: NVME_AEN=%#08x [%s]" , |
148 | __entry->ctrl_id, __entry->result, |
149 | __print_symbolic(__entry->result, |
150 | aer_name(NVME_AER_NOTICE_NS_CHANGED), |
151 | aer_name(NVME_AER_NOTICE_ANA), |
152 | aer_name(NVME_AER_NOTICE_FW_ACT_STARTING), |
153 | aer_name(NVME_AER_NOTICE_DISC_CHANGED), |
154 | aer_name(NVME_AER_ERROR), |
155 | aer_name(NVME_AER_SMART), |
156 | aer_name(NVME_AER_CSS), |
157 | aer_name(NVME_AER_VS)) |
158 | ) |
159 | ); |
160 | #undef aer_name |
161 | |
162 | #endif /* _TRACE_NVMET_H */ |
163 | |
164 | #undef TRACE_INCLUDE_PATH |
165 | #define TRACE_INCLUDE_PATH . |
166 | #undef TRACE_INCLUDE_FILE |
167 | #define TRACE_INCLUDE_FILE trace |
168 | |
169 | /* This part must be outside protection */ |
170 | #include <trace/define_trace.h> |
171 | |