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 strscpy_pad(name, req->ns->device_path, DISK_NAME_LEN); 57 } 58 #endif 59 60 TRACE_EVENT(nvmet_req_init, 61 TP_PROTO(struct nvmet_req *req, struct nvme_command *cmd), 62 TP_ARGS(req, cmd), 63 TP_STRUCT__entry( 64 __field(struct nvme_command *, cmd) 65 __field(struct nvmet_ctrl *, ctrl) 66 __array(char, disk, DISK_NAME_LEN) 67 __field(int, qid) 68 __field(u16, cid) 69 __field(u8, opcode) 70 __field(u8, fctype) 71 __field(u8, flags) 72 __field(u32, nsid) 73 __field(u64, metadata) 74 __array(u8, cdw10, 24) 75 ), 76 TP_fast_assign( 77 __entry->cmd = cmd; 78 __entry->ctrl = nvmet_req_to_ctrl(req); 79 __assign_req_name(__entry->disk, req); 80 __entry->qid = req->sq->qid; 81 __entry->cid = cmd->common.command_id; 82 __entry->opcode = cmd->common.opcode; 83 __entry->fctype = cmd->fabrics.fctype; 84 __entry->flags = cmd->common.flags; 85 __entry->nsid = le32_to_cpu(cmd->common.nsid); 86 __entry->metadata = le64_to_cpu(cmd->common.metadata); 87 memcpy(__entry->cdw10, &cmd->common.cdws, 88 sizeof(__entry->cdw10)); 89 ), 90 TP_printk("nvmet%s: %sqid=%d, cmdid=%u, nsid=%u, flags=%#x, " 91 "meta=%#llx, cmd=(%s, %s)", 92 __print_ctrl_name(__entry->ctrl), 93 __print_disk_name(__entry->disk), 94 __entry->qid, __entry->cid, __entry->nsid, 95 __entry->flags, __entry->metadata, 96 show_opcode_name(__entry->qid, __entry->opcode, 97 __entry->fctype), 98 parse_nvme_cmd(__entry->qid, __entry->opcode, 99 __entry->fctype, __entry->cdw10)) 100 ); 101 102 TRACE_EVENT(nvmet_req_complete, 103 TP_PROTO(struct nvmet_req *req), 104 TP_ARGS(req), 105 TP_STRUCT__entry( 106 __field(struct nvmet_ctrl *, ctrl) 107 __array(char, disk, DISK_NAME_LEN) 108 __field(int, qid) 109 __field(int, cid) 110 __field(u64, result) 111 __field(u16, status) 112 ), 113 TP_fast_assign( 114 __entry->ctrl = nvmet_req_to_ctrl(req); 115 __entry->qid = req->cq->qid; 116 __entry->cid = req->cqe->command_id; 117 __entry->result = le64_to_cpu(req->cqe->result.u64); 118 __entry->status = le16_to_cpu(req->cqe->status) >> 1; 119 __assign_req_name(__entry->disk, req); 120 ), 121 TP_printk("nvmet%s: %sqid=%d, cmdid=%u, res=%#llx, status=%#x", 122 __print_ctrl_name(__entry->ctrl), 123 __print_disk_name(__entry->disk), 124 __entry->qid, __entry->cid, __entry->result, __entry->status) 125 126 ); 127 128 #define aer_name(aer) { aer, #aer } 129 130 TRACE_EVENT(nvmet_async_event, 131 TP_PROTO(struct nvmet_ctrl *ctrl, __le32 result), 132 TP_ARGS(ctrl, result), 133 TP_STRUCT__entry( 134 __field(int, ctrl_id) 135 __field(u32, result) 136 ), 137 TP_fast_assign( 138 __entry->ctrl_id = ctrl->cntlid; 139 __entry->result = (le32_to_cpu(result) & 0xff00) >> 8; 140 ), 141 TP_printk("nvmet%d: NVME_AEN=%#08x [%s]", 142 __entry->ctrl_id, __entry->result, 143 __print_symbolic(__entry->result, 144 aer_name(NVME_AER_NOTICE_NS_CHANGED), 145 aer_name(NVME_AER_NOTICE_ANA), 146 aer_name(NVME_AER_NOTICE_FW_ACT_STARTING), 147 aer_name(NVME_AER_NOTICE_DISC_CHANGED), 148 aer_name(NVME_AER_ERROR), 149 aer_name(NVME_AER_SMART), 150 aer_name(NVME_AER_CSS), 151 aer_name(NVME_AER_VS)) 152 ) 153 ); 154 #undef aer_name 155 156 #endif /* _TRACE_NVMET_H */ 157 158 #undef TRACE_INCLUDE_PATH 159 #define TRACE_INCLUDE_PATH . 160 #undef TRACE_INCLUDE_FILE 161 #define TRACE_INCLUDE_FILE trace 162 163 /* This part must be outside protection */ 164 #include <trace/define_trace.h> 165