drivers/nvme/host/trace.h

   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
  19 const char *nvme_trace_parse_admin_cmd(struct trace_seq *p, u8 opcode,
  20                 u8 *cdw10);
  21 const char *nvme_trace_parse_nvm_cmd(struct trace_seq *p, u8 opcode,
  22                 u8 *cdw10);
  23 const 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
  33 const 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
  38 static 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
  47 TRACE_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(u64, 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 = le64_to_cpu(cmd->common.metadata);
  70                 __entry->fctype = cmd->fabrics.fctype;
  71                 __assign_disk_name(__entry->disk, req->rq_disk);
  72                 memcpy(__entry->cdw10, &cmd->common.cdw10,
  73                         sizeof(__entry->cdw10));
  74             ),
  75             TP_printk("nvme%d: %sqid=%d, cmdid=%u, nsid=%u, flags=0x%x, meta=0x%llx, 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
  85 TRACE_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 = req->tag;
 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->rq_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
 117 TRACE_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,
 131                 aer_name(NVME_AER_NOTICE_NS_CHANGED),
 132                 aer_name(NVME_AER_NOTICE_ANA),
 133                 aer_name(NVME_AER_NOTICE_FW_ACT_STARTING),
 134                 aer_name(NVME_AER_NOTICE_DISC_CHANGED),
 135                 aer_name(NVME_AER_ERROR),
 136                 aer_name(NVME_AER_SMART),
 137                 aer_name(NVME_AER_CSS),
 138                 aer_name(NVME_AER_VS))
 139         )
 140 );
 141
 142 #undef aer_name
 143
 144 TRACE_EVENT(nvme_sq,
 145         TP_PROTO(struct request *req, __le16 sq_head, int sq_tail),
 146         TP_ARGS(req, sq_head, sq_tail),
 147         TP_STRUCT__entry(
 148                 __field(int, ctrl_id)
 149                 __array(char, disk, DISK_NAME_LEN)
 150                 __field(int, qid)
 151                 __field(u16, sq_head)
 152                 __field(u16, sq_tail)
 153         ),
 154         TP_fast_assign(
 155                 __entry->ctrl_id = nvme_req(req)->ctrl->instance;
 156                 __assign_disk_name(__entry->disk, req->rq_disk);
 157                 __entry->qid = nvme_req_qid(req);
 158                 __entry->sq_head = le16_to_cpu(sq_head);
 159                 __entry->sq_tail = sq_tail;
 160         ),
 161         TP_printk("nvme%d: %sqid=%d, head=%u, tail=%u",
 162                 __entry->ctrl_id, __print_disk_name(__entry->disk),
 163                 __entry->qid, __entry->sq_head, __entry->sq_tail
 164         )
 165 );
 166
 167 #endif /* _TRACE_NVME_H */
 168
 169 #undef TRACE_INCLUDE_PATH
 170 #define TRACE_INCLUDE_PATH .
 171 #undef TRACE_INCLUDE_FILE
 172 #define TRACE_INCLUDE_FILE trace
 173
 174 /* This part must be outside protection */
 175 #include <trace/define_trace.h>