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_disk_name(char *name, struct nvmet_req *req, 50 bool init) 51 { 52 struct nvmet_ctrl *ctrl = nvmet_req_to_ctrl(req); 53 struct nvmet_ns *ns; 54 55 if ((init && req->sq->qid) || (!init && req->cq->qid)) { 56 ns = nvmet_find_namespace(ctrl, req->cmd->rw.nsid); 57 strncpy(name, ns->device_path, DISK_NAME_LEN); 58 return; 59 } 60 61 memset(name, 0, DISK_NAME_LEN); 62 } 63 #endif 64 65 TRACE_EVENT(nvmet_req_init, 66 TP_PROTO(struct nvmet_req *req, struct nvme_command *cmd), 67 TP_ARGS(req, cmd), 68 TP_STRUCT__entry( 69 __field(struct nvme_command *, cmd) 70 __field(struct nvmet_ctrl *, ctrl) 71 __array(char, disk, DISK_NAME_LEN) 72 __field(int, qid) 73 __field(u16, cid) 74 __field(u8, opcode) 75 __field(u8, fctype) 76 __field(u8, flags) 77 __field(u32, nsid) 78 __field(u64, metadata) 79 __array(u8, cdw10, 24) 80 ), 81 TP_fast_assign( 82 __entry->cmd = cmd; 83 __entry->ctrl = nvmet_req_to_ctrl(req); 84 __assign_disk_name(__entry->disk, req, true); 85 __entry->qid = req->sq->qid; 86 __entry->cid = cmd->common.command_id; 87 __entry->opcode = cmd->common.opcode; 88 __entry->fctype = cmd->fabrics.fctype; 89 __entry->flags = cmd->common.flags; 90 __entry->nsid = le32_to_cpu(cmd->common.nsid); 91 __entry->metadata = le64_to_cpu(cmd->common.metadata); 92 memcpy(__entry->cdw10, &cmd->common.cdw10, 93 sizeof(__entry->cdw10)); 94 ), 95 TP_printk("nvmet%s: %sqid=%d, cmdid=%u, nsid=%u, flags=%#x, " 96 "meta=%#llx, cmd=(%s, %s)", 97 __print_ctrl_name(__entry->ctrl), 98 __print_disk_name(__entry->disk), 99 __entry->qid, __entry->cid, __entry->nsid, 100 __entry->flags, __entry->metadata, 101 show_opcode_name(__entry->qid, __entry->opcode, 102 __entry->fctype), 103 parse_nvme_cmd(__entry->qid, __entry->opcode, 104 __entry->fctype, __entry->cdw10)) 105 ); 106 107 TRACE_EVENT(nvmet_req_complete, 108 TP_PROTO(struct nvmet_req *req), 109 TP_ARGS(req), 110 TP_STRUCT__entry( 111 __field(struct nvmet_ctrl *, ctrl) 112 __array(char, disk, DISK_NAME_LEN) 113 __field(int, qid) 114 __field(int, cid) 115 __field(u64, result) 116 __field(u16, status) 117 ), 118 TP_fast_assign( 119 __entry->ctrl = nvmet_req_to_ctrl(req); 120 __entry->qid = req->cq->qid; 121 __entry->cid = req->cqe->command_id; 122 __entry->result = le64_to_cpu(req->cqe->result.u64); 123 __entry->status = le16_to_cpu(req->cqe->status) >> 1; 124 __assign_disk_name(__entry->disk, req, false); 125 ), 126 TP_printk("nvmet%s: %sqid=%d, cmdid=%u, res=%#llx, status=%#x", 127 __print_ctrl_name(__entry->ctrl), 128 __print_disk_name(__entry->disk), 129 __entry->qid, __entry->cid, __entry->result, __entry->status) 130 131 ); 132 133 #define aer_name(aer) { aer, #aer } 134 135 TRACE_EVENT(nvmet_async_event, 136 TP_PROTO(struct nvmet_ctrl *ctrl, __le32 result), 137 TP_ARGS(ctrl, result), 138 TP_STRUCT__entry( 139 __field(int, ctrl_id) 140 __field(u32, result) 141 ), 142 TP_fast_assign( 143 __entry->ctrl_id = ctrl->cntlid; 144 __entry->result = (le32_to_cpu(result) & 0xff00) >> 8; 145 ), 146 TP_printk("nvmet%d: NVME_AEN=%#08x [%s]", 147 __entry->ctrl_id, __entry->result, 148 __print_symbolic(__entry->result, 149 aer_name(NVME_AER_NOTICE_NS_CHANGED), 150 aer_name(NVME_AER_NOTICE_ANA), 151 aer_name(NVME_AER_NOTICE_FW_ACT_STARTING), 152 aer_name(NVME_AER_NOTICE_DISC_CHANGED), 153 aer_name(NVME_AER_ERROR), 154 aer_name(NVME_AER_SMART), 155 aer_name(NVME_AER_CSS), 156 aer_name(NVME_AER_VS)) 157 ) 158 ); 159 #undef aer_name 160 161 #endif /* _TRACE_NVMET_H */ 162 163 #undef TRACE_INCLUDE_PATH 164 #define TRACE_INCLUDE_PATH . 165 #undef TRACE_INCLUDE_FILE 166 #define TRACE_INCLUDE_FILE trace 167 168 /* This part must be outside protection */ 169 #include <trace/define_trace.h> 170