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_id(struct trace_seq *p, u16 ctrl_id); 36 #define __print_ctrl_id(ctrl_id) \ 37 nvmet_trace_ctrl_id(p, ctrl_id) 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 u16 nvmet_req_to_ctrl_id(struct nvmet_req *req) 45 { 46 /* 47 * The queue and controller pointers are not valid until an association 48 * has been established. 49 */ 50 if (!req->sq || !req->sq->ctrl) 51 return 0; 52 return req->sq->ctrl->cntlid; 53 } 54 55 static inline void __assign_req_name(char *name, struct nvmet_req *req) 56 { 57 if (!req->ns) { 58 memset(name, 0, DISK_NAME_LEN); 59 return; 60 } 61 62 strscpy_pad(name, req->ns->device_path, DISK_NAME_LEN); 63 } 64 #endif 65 66 TRACE_EVENT(nvmet_req_init, 67 TP_PROTO(struct nvmet_req *req, struct nvme_command *cmd), 68 TP_ARGS(req, cmd), 69 TP_STRUCT__entry( 70 __field(struct nvme_command *, cmd) 71 __field(u16, ctrl_id) 72 __array(char, disk, DISK_NAME_LEN) 73 __field(int, qid) 74 __field(u16, cid) 75 __field(u8, opcode) 76 __field(u8, fctype) 77 __field(u8, flags) 78 __field(u32, nsid) 79 __field(u64, metadata) 80 __array(u8, cdw10, 24) 81 ), 82 TP_fast_assign( 83 __entry->cmd = cmd; 84 __entry->ctrl_id = nvmet_req_to_ctrl_id(req); 85 __assign_req_name(__entry->disk, req); 86 __entry->qid = req->sq->qid; 87 __entry->cid = cmd->common.command_id; 88 __entry->opcode = cmd->common.opcode; 89 __entry->fctype = cmd->fabrics.fctype; 90 __entry->flags = cmd->common.flags; 91 __entry->nsid = le32_to_cpu(cmd->common.nsid); 92 __entry->metadata = le64_to_cpu(cmd->common.metadata); 93 memcpy(__entry->cdw10, &cmd->common.cdws, 94 sizeof(__entry->cdw10)); 95 ), 96 TP_printk("nvmet%s: %sqid=%d, cmdid=%u, nsid=%u, flags=%#x, " 97 "meta=%#llx, cmd=(%s, %s)", 98 __print_ctrl_id(__entry->ctrl_id), 99 __print_disk_name(__entry->disk), 100 __entry->qid, __entry->cid, __entry->nsid, 101 __entry->flags, __entry->metadata, 102 show_opcode_name(__entry->qid, __entry->opcode, 103 __entry->fctype), 104 parse_nvme_cmd(__entry->qid, __entry->opcode, 105 __entry->fctype, __entry->cdw10)) 106 ); 107 108 TRACE_EVENT(nvmet_req_complete, 109 TP_PROTO(struct nvmet_req *req), 110 TP_ARGS(req), 111 TP_STRUCT__entry( 112 __field(u16, ctrl_id) 113 __array(char, disk, DISK_NAME_LEN) 114 __field(int, qid) 115 __field(int, cid) 116 __field(u64, result) 117 __field(u16, status) 118 ), 119 TP_fast_assign( 120 __entry->ctrl_id = nvmet_req_to_ctrl_id(req); 121 __entry->qid = req->cq->qid; 122 __entry->cid = req->cqe->command_id; 123 __entry->result = le64_to_cpu(req->cqe->result.u64); 124 __entry->status = le16_to_cpu(req->cqe->status) >> 1; 125 __assign_req_name(__entry->disk, req); 126 ), 127 TP_printk("nvmet%s: %sqid=%d, cmdid=%u, res=%#llx, status=%#x", 128 __print_ctrl_id(__entry->ctrl_id), 129 __print_disk_name(__entry->disk), 130 __entry->qid, __entry->cid, __entry->result, __entry->status) 131 132 ); 133 134 #define aer_name(aer) { aer, #aer } 135 136 TRACE_EVENT(nvmet_async_event, 137 TP_PROTO(struct nvmet_ctrl *ctrl, __le32 result), 138 TP_ARGS(ctrl, result), 139 TP_STRUCT__entry( 140 __field(int, ctrl_id) 141 __field(u32, result) 142 ), 143 TP_fast_assign( 144 __entry->ctrl_id = ctrl->cntlid; 145 __entry->result = (le32_to_cpu(result) & 0xff00) >> 8; 146 ), 147 TP_printk("nvmet%d: NVME_AEN=%#08x [%s]", 148 __entry->ctrl_id, __entry->result, 149 __print_symbolic(__entry->result, 150 aer_name(NVME_AER_NOTICE_NS_CHANGED), 151 aer_name(NVME_AER_NOTICE_ANA), 152 aer_name(NVME_AER_NOTICE_FW_ACT_STARTING), 153 aer_name(NVME_AER_NOTICE_DISC_CHANGED), 154 aer_name(NVME_AER_ERROR), 155 aer_name(NVME_AER_SMART), 156 aer_name(NVME_AER_CSS), 157 aer_name(NVME_AER_VS)) 158 ) 159 ); 160 #undef aer_name 161 162 #endif /* _TRACE_NVMET_H */ 163 164 #undef TRACE_INCLUDE_PATH 165 #define TRACE_INCLUDE_PATH . 166 #undef TRACE_INCLUDE_FILE 167 #define TRACE_INCLUDE_FILE trace 168 169 /* This part must be outside protection */ 170 #include <trace/define_trace.h> 171