trace.h 4.5 KB

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