diff options
| author | Johannes Thumshirn <jthumshirn@suse.de> | 2018-01-26 11:21:37 +0100 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2018-01-26 12:34:40 +0100 |
| commit | 3d030e41d96f46c14faf79f19c3cf1b9961815c8 (patch) | |
| tree | 4a7dbb948f812b13ae0c73f9dce9f1d784cdac91 /drivers/nvme/host/core.c | |
| parent | ad70062cdb4002c74db4fbed4e2b34daffccacc2 (diff) | |
nvme: add tracepoint for nvme_setup_cmd
Add tracepoints for nvme_setup_cmd() for tracing admin and/or nvm commands.
Examples of the two tracepoints are as follows for trace_nvme_setup_admin_cmd():
kworker/u8:0-5 [003] .... 2.998792: nvme_setup_admin_cmd: cmdid=14, flags=0x0, meta=0x0, cmd=(nvme_admin_create_cq cqid=1, qsize=1023, cq_flags=0x3, irq_vector=0)
and trace_nvme_setup_nvm_cmd():
dd-205 [001] .... 3.503929: nvme_setup_nvm_cmd: qid=1, nsid=1, cmdid=989, flags=0x0, meta=0x0, cmd=(nvme_cmd_read slba=4096, len=2047, ctrl=0x0, dsmgmt=0, reftag=0)
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/nvme/host/core.c')
| -rw-r--r-- | drivers/nvme/host/core.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 63c2c469112d..f1430ca79a5b 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -29,6 +29,9 @@ #include <linux/pm_qos.h> #include <asm/unaligned.h> +#define CREATE_TRACE_POINTS +#include "trace.h" + #include "nvme.h" #include "fabrics.h" @@ -628,6 +631,10 @@ blk_status_t nvme_setup_cmd(struct nvme_ns *ns, struct request *req, } cmd->common.command_id = req->tag; + if (ns) + trace_nvme_setup_nvm_cmd(req->q->id, cmd); + else + trace_nvme_setup_admin_cmd(cmd); return ret; } EXPORT_SYMBOL_GPL(nvme_setup_cmd); |