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
  24 #define parse_nvme_cmd(qid, opcode, cdw10)                      \
  25         (qid ?                                                  \
  26          nvme_trace_parse_nvm_cmd(p, opcode, cdw10) :           \
  27          nvme_trace_parse_admin_cmd(p, opcode, cdw10))
  28
  29 const char *nvme_trace_disk_name(struct trace_seq *p, char *name);
  30 #define __print_disk_name(name)                         \
  31         nvme_trace_disk_name(p, name)
  32
  33 #ifndef TRACE_HEADER_MULTI_READ
  34 static inline void __assign_disk_name(char *name, struct gendisk *disk)
  35 {
  36         if (disk)
  37                 memcpy(name, disk->disk_name, DISK_NAME_LEN);
  38         else
  39                 memset(name, 0, DISK_NAME_LEN);
  40 }
  41 #endif
  42
  43 TRACE_EVENT(nvme_setup_cmd,
  44             TP_PROTO(struct request *req, struct nvme_command *cmd),
  45             TP_ARGS(req, cmd),
  46             TP_STRUCT__entry(
  47                 __array(char, disk, DISK_NAME_LEN)
  48                 __field(int, ctrl_id)
  49                 __field(int, qid)
  50                 __field(u8, opcode)
  51                 __field(u8, flags)
  52                 __field(u16, cid)
  53                 __field(u32, nsid)
  54                 __field(u64, metadata)
  55                 __array(u8, cdw10, 24)
  56             ),
  57             TP_fast_assign(
  58                 __entry->ctrl_id = nvme_req(req)->ctrl->instance;
  59                 __entry->qid = nvme_req_qid(req);
  60                 __entry->opcode = cmd->common.opcode;
  61                 __entry->flags = cmd->common.flags;
  62                 __entry->cid = cmd->common.command_id;
  63                 __entry->nsid = le32_to_cpu(cmd->common.nsid);
  64                 __entry->metadata = le64_to_cpu(cmd->common.metadata);
  65                 __assign_disk_name(__entry->disk, req->rq_disk);
  66                 memcpy(__entry->cdw10, &cmd->common.cdw10,
  67                         sizeof(__entry->cdw10));
  68             ),
  69             TP_printk("nvme%d: %sqid=%d, cmdid=%u, nsid=%u, flags=0x%x, meta=0x%llx, cmd=(%s %s)",
  70                       __entry->ctrl_id, __print_disk_name(__entry->disk),
  71                       __entry->qid, __entry->cid, __entry->nsid,
  72                       __entry->flags, __entry->metadata,
  73                       show_opcode_name(__entry->qid, __entry->opcode),
  74                       parse_nvme_cmd(__entry->qid, __entry->opcode, __entry->cdw10))
  75 );
  76
  77 TRACE_EVENT(nvme_complete_rq,
  78             TP_PROTO(struct request *req),
  79             TP_ARGS(req),
  80             TP_STRUCT__entry(
  81                 __array(char, disk, DISK_NAME_LEN)
  82                 __field(int, ctrl_id)
  83                 __field(int, qid)
  84                 __field(int, cid)
  85                 __field(u64, result)
  86                 __field(u8, retries)
  87                 __field(u8, flags)
  88                 __field(u16, status)
  89             ),
  90             TP_fast_assign(
  91                 __entry->ctrl_id = nvme_req(req)->ctrl->instance;
  92                 __entry->qid = nvme_req_qid(req);
  93                 __entry->cid = req->tag;
  94                 __entry->result = le64_to_cpu(nvme_req(req)->result.u64);
  95                 __entry->retries = nvme_req(req)->retries;
  96                 __entry->flags = nvme_req(req)->flags;
  97                 __entry->status = nvme_req(req)->status;
  98                 __assign_disk_name(__entry->disk, req->rq_disk);
  99             ),
 100             TP_printk("nvme%d: %sqid=%d, cmdid=%u, res=%llu, retries=%u, flags=0x%x, status=%u",
 101                       __entry->ctrl_id, __print_disk_name(__entry->disk),
 102                       __entry->qid, __entry->cid, __entry->result,
 103                       __entry->retries, __entry->flags, __entry->status)
 104
 105 );
 106
 107 #define aer_name(aer) { aer, #aer }
 108
 109 TRACE_EVENT(nvme_async_event,
 110         TP_PROTO(struct nvme_ctrl *ctrl, u32 result),
 111         TP_ARGS(ctrl, result),
 112         TP_STRUCT__entry(
 113                 __field(int, ctrl_id)
 114                 __field(u32, result)
 115         ),
 116         TP_fast_assign(
 117                 __entry->ctrl_id = ctrl->instance;
 118                 __entry->result = result;
 119         ),
 120         TP_printk("nvme%d: NVME_AEN=%#08x [%s]",
 121                 __entry->ctrl_id, __entry->result,
 122                 __print_symbolic(__entry->result,
 123                 aer_name(NVME_AER_NOTICE_NS_CHANGED),
 124                 aer_name(NVME_AER_NOTICE_ANA),
 125                 aer_name(NVME_AER_NOTICE_FW_ACT_STARTING),
 126                 aer_name(NVME_AER_NOTICE_DISC_CHANGED),
 127                 aer_name(NVME_AER_ERROR),
 128                 aer_name(NVME_AER_SMART),
 129                 aer_name(NVME_AER_CSS),
 130                 aer_name(NVME_AER_VS))
 131         )
 132 );
 133
 134 #undef aer_name
 135
 136 TRACE_EVENT(nvme_sq,
 137         TP_PROTO(struct request *req, __le16 sq_head, int sq_tail),
 138         TP_ARGS(req, sq_head, sq_tail),
 139         TP_STRUCT__entry(
 140                 __field(int, ctrl_id)
 141                 __array(char, disk, DISK_NAME_LEN)
 142                 __field(int, qid)
 143                 __field(u16, sq_head)
 144                 __field(u16, sq_tail)
 145         ),
 146         TP_fast_assign(
 147                 __entry->ctrl_id = nvme_req(req)->ctrl->instance;
 148                 __assign_disk_name(__entry->disk, req->rq_disk);
 149                 __entry->qid = nvme_req_qid(req);
 150                 __entry->sq_head = le16_to_cpu(sq_head);
 151                 __entry->sq_tail = sq_tail;
 152         ),
 153         TP_printk("nvme%d: %sqid=%d, head=%u, tail=%u",
 154                 __entry->ctrl_id, __print_disk_name(__entry->disk),
 155                 __entry->qid, __entry->sq_head, __entry->sq_tail
 156         )
 157 );
 158
 159 #endif /* _TRACE_NVME_H */
 160
 161 #undef TRACE_INCLUDE_PATH
 162 #define TRACE_INCLUDE_PATH .
 163 #undef TRACE_INCLUDE_FILE
 164 #define TRACE_INCLUDE_FILE trace
 165
 166 /* This part must be outside protection */
 167 #include <trace/define_trace.h>