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authorKeith Busch <keith.busch@intel.com>2018-06-30 01:50:01 +0300
committerChristoph Hellwig <hch@lst.de>2018-07-23 10:35:19 +0300
commit5d87eb94d9ba13e5e2d5ceb56ac6fe0948259ffa (patch)
tree06ce6e09f965fd881cce0614053d9015e2fd09e5 /drivers/nvme/host/trace.h
parent59e29ce66bc52ebd6d0cb450f13079c7e913430d (diff)
downloadlinux-5d87eb94d9ba13e5e2d5ceb56ac6fe0948259ffa.tar.xz
nvme: use hw qid in trace events
We can not match a command to its completion based on the command id alone. We need the submitting queue identifier to pair with the completion, so this patch adds that to the trace buffer. This patch is also collapsing the admin and IO submission traces into a single one so we don't need to duplicate this and creating unnecessary code branches: we know if the command is an admin vs IO based on the qid. And since we're here, the patch fixes code formatting in the area. Signed-off-by: Keith Busch <keith.busch@intel.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> [hch: move the qid helper to nvme.h and made it an inline function] Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/nvme/host/trace.h')
-rw-r--r--drivers/nvme/host/trace.h112
1 files changed, 45 insertions, 67 deletions
diff --git a/drivers/nvme/host/trace.h b/drivers/nvme/host/trace.h
index 01390f0e1671..e6362677447d 100644
--- a/drivers/nvme/host/trace.h
+++ b/drivers/nvme/host/trace.h
@@ -50,13 +50,8 @@
nvme_admin_opcode_name(nvme_admin_security_recv), \
nvme_admin_opcode_name(nvme_admin_sanitize_nvm))
-const char *nvme_trace_parse_admin_cmd(struct trace_seq *p, u8 opcode,
- u8 *cdw10);
-#define __parse_nvme_admin_cmd(opcode, cdw10) \
- nvme_trace_parse_admin_cmd(p, opcode, cdw10)
-
#define nvme_opcode_name(opcode) { opcode, #opcode }
-#define show_opcode_name(val) \
+#define show_nvm_opcode_name(val) \
__print_symbolic(val, \
nvme_opcode_name(nvme_cmd_flush), \
nvme_opcode_name(nvme_cmd_write), \
@@ -70,83 +65,66 @@ const char *nvme_trace_parse_admin_cmd(struct trace_seq *p, u8 opcode,
nvme_opcode_name(nvme_cmd_resv_acquire), \
nvme_opcode_name(nvme_cmd_resv_release))
-const char *nvme_trace_parse_nvm_cmd(struct trace_seq *p, u8 opcode,
- u8 *cdw10);
-#define __parse_nvme_cmd(opcode, cdw10) \
- nvme_trace_parse_nvm_cmd(p, opcode, cdw10)
+#define show_opcode_name(qid, opcode) \
+ (qid ? show_nvm_opcode_name(opcode) : show_admin_opcode_name(opcode))
-TRACE_EVENT(nvme_setup_admin_cmd,
- TP_PROTO(struct nvme_command *cmd),
- TP_ARGS(cmd),
- TP_STRUCT__entry(
- __field(u8, opcode)
- __field(u8, flags)
- __field(u16, cid)
- __field(u64, metadata)
- __array(u8, cdw10, 24)
- ),
- TP_fast_assign(
- __entry->opcode = cmd->common.opcode;
- __entry->flags = cmd->common.flags;
- __entry->cid = cmd->common.command_id;
- __entry->metadata = le64_to_cpu(cmd->common.metadata);
- memcpy(__entry->cdw10, cmd->common.cdw10,
- sizeof(__entry->cdw10));
- ),
- TP_printk(" cmdid=%u, flags=0x%x, meta=0x%llx, cmd=(%s %s)",
- __entry->cid, __entry->flags, __entry->metadata,
- show_admin_opcode_name(__entry->opcode),
- __parse_nvme_admin_cmd(__entry->opcode, __entry->cdw10))
-);
+const char *nvme_trace_parse_admin_cmd(struct trace_seq *p, u8 opcode,
+ u8 *cdw10);
+const char *nvme_trace_parse_nvm_cmd(struct trace_seq *p, u8 opcode,
+ u8 *cdw10);
+#define parse_nvme_cmd(qid, opcode, cdw10) \
+ (qid ? \
+ nvme_trace_parse_nvm_cmd(p, opcode, cdw10) : \
+ nvme_trace_parse_admin_cmd(p, opcode, cdw10))
-TRACE_EVENT(nvme_setup_nvm_cmd,
- TP_PROTO(int qid, struct nvme_command *cmd),
- TP_ARGS(qid, cmd),
+TRACE_EVENT(nvme_setup_cmd,
+ TP_PROTO(struct request *req, struct nvme_command *cmd),
+ TP_ARGS(req, cmd),
TP_STRUCT__entry(
- __field(int, qid)
- __field(u8, opcode)
- __field(u8, flags)
- __field(u16, cid)
- __field(u32, nsid)
- __field(u64, metadata)
- __array(u8, cdw10, 24)
+ __field(int, qid)
+ __field(u8, opcode)
+ __field(u8, flags)
+ __field(u16, cid)
+ __field(u32, nsid)
+ __field(u64, metadata)
+ __array(u8, cdw10, 24)
),
TP_fast_assign(
- __entry->qid = qid;
- __entry->opcode = cmd->common.opcode;
- __entry->flags = cmd->common.flags;
- __entry->cid = cmd->common.command_id;
- __entry->nsid = le32_to_cpu(cmd->common.nsid);
- __entry->metadata = le64_to_cpu(cmd->common.metadata);
- memcpy(__entry->cdw10, cmd->common.cdw10,
- sizeof(__entry->cdw10));
+ __entry->qid = nvme_req_qid(req);
+ __entry->opcode = cmd->common.opcode;
+ __entry->flags = cmd->common.flags;
+ __entry->cid = cmd->common.command_id;
+ __entry->nsid = le32_to_cpu(cmd->common.nsid);
+ __entry->metadata = le64_to_cpu(cmd->common.metadata);
+ memcpy(__entry->cdw10, cmd->common.cdw10,
+ sizeof(__entry->cdw10));
),
- TP_printk("qid=%d, nsid=%u, cmdid=%u, flags=0x%x, meta=0x%llx, cmd=(%s %s)",
- __entry->qid, __entry->nsid, __entry->cid,
+ TP_printk("qid=%d, cmdid=%u, nsid=%u, flags=0x%x, meta=0x%llx, cmd=(%s %s)",
+ __entry->qid, __entry->cid, __entry->nsid,
__entry->flags, __entry->metadata,
- show_opcode_name(__entry->opcode),
- __parse_nvme_cmd(__entry->opcode, __entry->cdw10))
+ show_opcode_name(__entry->qid, __entry->opcode),
+ parse_nvme_cmd(__entry->qid, __entry->opcode, __entry->cdw10))
);
TRACE_EVENT(nvme_complete_rq,
TP_PROTO(struct request *req),
TP_ARGS(req),
TP_STRUCT__entry(
- __field(int, qid)
- __field(int, cid)
- __field(u64, result)
- __field(u8, retries)
- __field(u8, flags)
- __field(u16, status)
+ __field(int, qid)
+ __field(int, cid)
+ __field(u64, result)
+ __field(u8, retries)
+ __field(u8, flags)
+ __field(u16, status)
),
TP_fast_assign(
- __entry->qid = req->q->id;
- __entry->cid = req->tag;
- __entry->result = le64_to_cpu(nvme_req(req)->result.u64);
- __entry->retries = nvme_req(req)->retries;
- __entry->flags = nvme_req(req)->flags;
- __entry->status = nvme_req(req)->status;
+ __entry->qid = nvme_req_qid(req);
+ __entry->cid = req->tag;
+ __entry->result = le64_to_cpu(nvme_req(req)->result.u64);
+ __entry->retries = nvme_req(req)->retries;
+ __entry->flags = nvme_req(req)->flags;
+ __entry->status = nvme_req(req)->status;
),
TP_printk("qid=%d, cmdid=%u, res=%llu, retries=%u, flags=0x%x, status=%u",
__entry->qid, __entry->cid, __entry->result,