* [PATCH v4 1/1] nvme: trace: add disk name to tracepoints
@ 2018-06-11 18:46 Johannes Thumshirn
2018-06-19 14:09 ` Sagi Grimberg
0 siblings, 1 reply; 8+ messages in thread
From: Johannes Thumshirn @ 2018-06-11 18:46 UTC (permalink / raw)
To: Christoph Hellwig, Sagi Grimberg, Keith Busch
Cc: Linux Kernel Mailinglist, Linux NVMe Mailinglist, Johannes Thumshirn
Add disk name to tracepoints so we can better distinguish between
individual disks in the trace output.
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
---
I'm not entirely sure if this adding the ctrl pointers to
nvme_complete_rq() and nvme_setup_cmd() is a good idea, it's the
fast-path after all.
Changes to v3:
* Fix compilation of nvme-fc.ko (kbuild robot)
* Fix compilation of nvme-loop.ko (kbuild robot)
Changes to v2:
* Pass nvme_ctrl to nvme_complete_rq() and nvme_setup_cmd()
* Fixed typo in commit message
* Dropped Sagi's R-b (it changed quite a lot since v2)
---
drivers/nvme/host/core.c | 12 ++++++------
drivers/nvme/host/fc.c | 4 ++--
drivers/nvme/host/nvme.h | 6 +++---
drivers/nvme/host/pci.c | 7 ++++---
drivers/nvme/host/rdma.c | 5 +++--
drivers/nvme/host/trace.h | 36 ++++++++++++++++++++++--------------
drivers/nvme/target/loop.c | 5 +++--
7 files changed, 43 insertions(+), 32 deletions(-)
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index effb1309682e..dc65c6cf94d3 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -229,11 +229,11 @@ static inline bool nvme_req_needs_retry(struct request *req)
return true;
}
-void nvme_complete_rq(struct request *req)
+void nvme_complete_rq(struct nvme_ctrl *ctrl, struct request *req)
{
blk_status_t status = nvme_error_status(req);
- trace_nvme_complete_rq(req);
+ trace_nvme_complete_rq(ctrl->cntlid, req);
if (unlikely(status != BLK_STS_OK && nvme_req_needs_retry(req))) {
if (nvme_req_needs_failover(req, status)) {
@@ -622,8 +622,8 @@ static inline blk_status_t nvme_setup_rw(struct nvme_ns *ns,
return 0;
}
-blk_status_t nvme_setup_cmd(struct nvme_ns *ns, struct request *req,
- struct nvme_command *cmd)
+blk_status_t nvme_setup_cmd(struct nvme_ctrl *ctrl, struct nvme_ns *ns,
+ struct request *req, struct nvme_command *cmd)
{
blk_status_t ret = BLK_STS_OK;
@@ -653,9 +653,9 @@ 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);
+ trace_nvme_setup_nvm_cmd(ns->disk->disk_name, req->q->id, cmd);
else
- trace_nvme_setup_admin_cmd(cmd);
+ trace_nvme_setup_admin_cmd(ctrl->cntlid, cmd);
return ret;
}
EXPORT_SYMBOL_GPL(nvme_setup_cmd);
diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c
index 0bad65803271..e7357124dc90 100644
--- a/drivers/nvme/host/fc.c
+++ b/drivers/nvme/host/fc.c
@@ -2288,7 +2288,7 @@ nvme_fc_queue_rq(struct blk_mq_hw_ctx *hctx,
if (unlikely(ret))
return ret;
- ret = nvme_setup_cmd(ns, rq, sqe);
+ ret = nvme_setup_cmd(&ctrl->ctrl, ns, rq, sqe);
if (ret)
return ret;
@@ -2369,7 +2369,7 @@ nvme_fc_complete_rq(struct request *rq)
atomic_set(&op->state, FCPOP_STATE_IDLE);
nvme_fc_unmap_data(ctrl, rq, op);
- nvme_complete_rq(rq);
+ nvme_complete_rq(&ctrl->ctrl, rq);
nvme_fc_ctrl_put(ctrl);
}
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index 34df07d44f80..ce5e08887960 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -386,7 +386,7 @@ static inline void nvme_put_ctrl(struct nvme_ctrl *ctrl)
put_device(ctrl->device);
}
-void nvme_complete_rq(struct request *req);
+void nvme_complete_rq(struct nvme_ctrl *ctrl, struct request *req);
void nvme_cancel_request(struct request *req, void *data, bool reserved);
bool nvme_change_ctrl_state(struct nvme_ctrl *ctrl,
enum nvme_ctrl_state new_state);
@@ -421,8 +421,8 @@ int nvme_reinit_tagset(struct nvme_ctrl *ctrl, struct blk_mq_tag_set *set);
#define NVME_QID_ANY -1
struct request *nvme_alloc_request(struct request_queue *q,
struct nvme_command *cmd, blk_mq_req_flags_t flags, int qid);
-blk_status_t nvme_setup_cmd(struct nvme_ns *ns, struct request *req,
- struct nvme_command *cmd);
+blk_status_t nvme_setup_cmd(struct nvme_ctrl *ctrl, struct nvme_ns *ns,
+ struct request *req, struct nvme_command *cmd);
int nvme_submit_sync_cmd(struct request_queue *q, struct nvme_command *cmd,
void *buf, unsigned bufflen);
int __nvme_submit_sync_cmd(struct request_queue *q, struct nvme_command *cmd,
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index cd7aec58a301..250fa84ec011 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -877,7 +877,7 @@ static blk_status_t nvme_queue_rq(struct blk_mq_hw_ctx *hctx,
if (unlikely(nvmeq->cq_vector < 0))
return BLK_STS_IOERR;
- ret = nvme_setup_cmd(ns, req, &cmnd);
+ ret = nvme_setup_cmd(&dev->ctrl, ns, req, &cmnd);
if (ret)
return ret;
@@ -904,9 +904,10 @@ static blk_status_t nvme_queue_rq(struct blk_mq_hw_ctx *hctx,
static void nvme_pci_complete_rq(struct request *req)
{
struct nvme_iod *iod = blk_mq_rq_to_pdu(req);
+ struct nvme_dev *dev = iod->nvmeq->dev;
- nvme_unmap_data(iod->nvmeq->dev, req);
- nvme_complete_rq(req);
+ nvme_unmap_data(dev, req);
+ nvme_complete_rq(&dev->ctrl, req);
}
/* We read the CQE phase first to check if the rest of the entry is valid */
diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c
index 2aba03876d84..b3af36684150 100644
--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c
@@ -1627,7 +1627,7 @@ static blk_status_t nvme_rdma_queue_rq(struct blk_mq_hw_ctx *hctx,
ib_dma_sync_single_for_cpu(dev, sqe->dma,
sizeof(struct nvme_command), DMA_TO_DEVICE);
- ret = nvme_setup_cmd(ns, rq, c);
+ ret = nvme_setup_cmd(&queue->ctrl->ctrl, ns, rq, c);
if (ret)
return ret;
@@ -1684,9 +1684,10 @@ static int nvme_rdma_poll(struct blk_mq_hw_ctx *hctx, unsigned int tag)
static void nvme_rdma_complete_rq(struct request *rq)
{
struct nvme_rdma_request *req = blk_mq_rq_to_pdu(rq);
+ struct nvme_ctrl *ctrl = &req->queue->ctrl->ctrl;
nvme_rdma_unmap_data(req->queue, rq);
- nvme_complete_rq(rq);
+ nvme_complete_rq(ctrl, rq);
}
static int nvme_rdma_map_queues(struct blk_mq_tag_set *set)
diff --git a/drivers/nvme/host/trace.h b/drivers/nvme/host/trace.h
index 01390f0e1671..f252afb02426 100644
--- a/drivers/nvme/host/trace.h
+++ b/drivers/nvme/host/trace.h
@@ -76,9 +76,10 @@ const char *nvme_trace_parse_nvm_cmd(struct trace_seq *p, u8 opcode,
nvme_trace_parse_nvm_cmd(p, opcode, cdw10)
TRACE_EVENT(nvme_setup_admin_cmd,
- TP_PROTO(struct nvme_command *cmd),
- TP_ARGS(cmd),
+ TP_PROTO(int ctrl_id, struct nvme_command *cmd),
+ TP_ARGS(ctrl_id, cmd),
TP_STRUCT__entry(
+ __field(int, ctrl_id)
__field(u8, opcode)
__field(u8, flags)
__field(u16, cid)
@@ -86,6 +87,7 @@ TRACE_EVENT(nvme_setup_admin_cmd,
__array(u8, cdw10, 24)
),
TP_fast_assign(
+ __entry->ctrl_id = ctrl_id;
__entry->opcode = cmd->common.opcode;
__entry->flags = cmd->common.flags;
__entry->cid = cmd->common.command_id;
@@ -93,17 +95,19 @@ TRACE_EVENT(nvme_setup_admin_cmd,
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,
+ TP_printk("nvme%d: cmdid=%u, flags=0x%x, meta=0x%llx, cmd=(%s %s)",
+ __entry->ctrl_id, __entry->cid, __entry->flags,
+ __entry->metadata,
show_admin_opcode_name(__entry->opcode),
__parse_nvme_admin_cmd(__entry->opcode, __entry->cdw10))
);
TRACE_EVENT(nvme_setup_nvm_cmd,
- TP_PROTO(int qid, struct nvme_command *cmd),
- TP_ARGS(qid, cmd),
+ TP_PROTO(char *disk_name, int qid, struct nvme_command *cmd),
+ TP_ARGS(disk_name, qid, cmd),
TP_STRUCT__entry(
+ __string(name, disk_name)
__field(int, qid)
__field(u8, opcode)
__field(u8, flags)
@@ -113,6 +117,7 @@ TRACE_EVENT(nvme_setup_nvm_cmd,
__array(u8, cdw10, 24)
),
TP_fast_assign(
+ __assign_str(name, disk_name);
__entry->qid = qid;
__entry->opcode = cmd->common.opcode;
__entry->flags = cmd->common.flags;
@@ -122,17 +127,18 @@ TRACE_EVENT(nvme_setup_nvm_cmd,
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,
- __entry->flags, __entry->metadata,
+ TP_printk("%s: qid=%d, nsid=%u, cmdid=%u, flags=0x%x, meta=0x%llx, cmd=(%s %s)",
+ __get_str(name), __entry->qid, __entry->nsid,
+ __entry->cid, __entry->flags, __entry->metadata,
show_opcode_name(__entry->opcode),
__parse_nvme_cmd(__entry->opcode, __entry->cdw10))
);
TRACE_EVENT(nvme_complete_rq,
- TP_PROTO(struct request *req),
- TP_ARGS(req),
+ TP_PROTO(int ctrl_id, struct request *req),
+ TP_ARGS(ctrl_id, req),
TP_STRUCT__entry(
+ __field(int, ctrl_id)
__field(int, qid)
__field(int, cid)
__field(u64, result)
@@ -141,6 +147,7 @@ TRACE_EVENT(nvme_complete_rq,
__field(u16, status)
),
TP_fast_assign(
+ __entry->ctrl_id = ctrl_id;
__entry->qid = req->q->id;
__entry->cid = req->tag;
__entry->result = le64_to_cpu(nvme_req(req)->result.u64);
@@ -148,9 +155,10 @@ TRACE_EVENT(nvme_complete_rq,
__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,
- __entry->retries, __entry->flags, __entry->status)
+ TP_printk("nvme%d: qid=%d, cmdid=%u, res=%llu, retries=%u, flags=0x%x, status=%u",
+ __entry->ctrl_id, __entry->qid, __entry->cid,
+ __entry->result, __entry->retries, __entry->flags,
+ __entry->status)
);
diff --git a/drivers/nvme/target/loop.c b/drivers/nvme/target/loop.c
index 1304ec3a7ede..8598ba0402ff 100644
--- a/drivers/nvme/target/loop.c
+++ b/drivers/nvme/target/loop.c
@@ -83,10 +83,11 @@ static inline int nvme_loop_queue_idx(struct nvme_loop_queue *queue)
static void nvme_loop_complete_rq(struct request *req)
{
struct nvme_loop_iod *iod = blk_mq_rq_to_pdu(req);
+ struct nvme_ctrl *ctrl = &iod->queue->ctrl->ctrl;
nvme_cleanup_cmd(req);
sg_free_table_chained(&iod->sg_table, true);
- nvme_complete_rq(req);
+ nvme_complete_rq(ctrl, req);
}
static struct blk_mq_tags *nvme_loop_tagset(struct nvme_loop_queue *queue)
@@ -165,7 +166,7 @@ static blk_status_t nvme_loop_queue_rq(struct blk_mq_hw_ctx *hctx,
if (unlikely(ret))
return ret;
- ret = nvme_setup_cmd(ns, req, &iod->cmd);
+ ret = nvme_setup_cmd(&queue->ctrl->ctrl, ns, req, &iod->cmd);
if (ret)
return ret;
--
2.16.4
^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [PATCH v4 1/1] nvme: trace: add disk name to tracepoints
2018-06-11 18:46 [PATCH v4 1/1] nvme: trace: add disk name to tracepoints Johannes Thumshirn
@ 2018-06-19 14:09 ` Sagi Grimberg
2018-06-25 7:08 ` Johannes Thumshirn
0 siblings, 1 reply; 8+ messages in thread
From: Sagi Grimberg @ 2018-06-19 14:09 UTC (permalink / raw)
To: Johannes Thumshirn, Christoph Hellwig, Keith Busch
Cc: Linux Kernel Mailinglist, Linux NVMe Mailinglist
On 06/11/2018 09:46 PM, Johannes Thumshirn wrote:
> Add disk name to tracepoints so we can better distinguish between
> individual disks in the trace output.
>
> Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
>
> ---
>
> I'm not entirely sure if this adding the ctrl pointers to
> nvme_complete_rq() and nvme_setup_cmd() is a good idea, it's the
> fast-path after all.
We are going to need it for traffic based keep alive to update
that we saw a completion to extend the kato.
But I suggest you simply keep a ctrl reference in struct nvme_request
instead so you don't need to pass it to nvme_complete_req (that's what
I did for traffic based keep alive).
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH v4 1/1] nvme: trace: add disk name to tracepoints
2018-06-19 14:09 ` Sagi Grimberg
@ 2018-06-25 7:08 ` Johannes Thumshirn
2018-06-25 13:31 ` Sagi Grimberg
0 siblings, 1 reply; 8+ messages in thread
From: Johannes Thumshirn @ 2018-06-25 7:08 UTC (permalink / raw)
To: Sagi Grimberg
Cc: Christoph Hellwig, Keith Busch, Linux Kernel Mailinglist,
Linux NVMe Mailinglist
On Tue, Jun 19, 2018 at 05:09:27PM +0300, Sagi Grimberg wrote:
> We are going to need it for traffic based keep alive to update
> that we saw a completion to extend the kato.
>
> But I suggest you simply keep a ctrl reference in struct nvme_request
> instead so you don't need to pass it to nvme_complete_req (that's what
> I did for traffic based keep alive).
Do you have a patch for this around? IIRC I started this (as Christoph
also suggested it) but it turned out to be quite a big refactoring
work.
Byte,
Johannes
--
Johannes Thumshirn Storage
jthumshirn@suse.de +49 911 74053 689
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: Felix Imendörffer, Jane Smithard, Graham Norton
HRB 21284 (AG Nürnberg)
Key fingerprint = EC38 9CAB C2C4 F25D 8600 D0D0 0393 969D 2D76 0850
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH v4 1/1] nvme: trace: add disk name to tracepoints
2018-06-25 7:08 ` Johannes Thumshirn
@ 2018-06-25 13:31 ` Sagi Grimberg
2018-06-25 14:03 ` Johannes Thumshirn
0 siblings, 1 reply; 8+ messages in thread
From: Sagi Grimberg @ 2018-06-25 13:31 UTC (permalink / raw)
To: Johannes Thumshirn
Cc: Christoph Hellwig, Keith Busch, Linux Kernel Mailinglist,
Linux NVMe Mailinglist
On 06/25/2018 10:08 AM, Johannes Thumshirn wrote:
> On Tue, Jun 19, 2018 at 05:09:27PM +0300, Sagi Grimberg wrote:
>> We are going to need it for traffic based keep alive to update
>> that we saw a completion to extend the kato.
>>
>> But I suggest you simply keep a ctrl reference in struct nvme_request
>> instead so you don't need to pass it to nvme_complete_req (that's what
>> I did for traffic based keep alive).
>
> Do you have a patch for this around? IIRC I started this (as Christoph
> also suggested it) but it turned out to be quite a big refactoring
> work.
How about the below? patch #1 is what you are looking for, patch #2 is
a slightly modified version that applies on #1. Let me know what you
think...
[1]:
--
nvme: cache struct nvme_ctrl reference to struct nvme_request
We will need to reference the controller in the setup and
completion time for tracing and future traffic based keep alive
support.
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index e8cdb5409725..f53416619905 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -390,6 +390,7 @@ static inline void nvme_clear_nvme_request(struct
request *req)
if (!(req->rq_flags & RQF_DONTPREP)) {
nvme_req(req)->retries = 0;
nvme_req(req)->flags = 0;
+ nvme_req(req)->ctrl = NULL;
req->rq_flags |= RQF_DONTPREP;
}
}
@@ -622,8 +623,8 @@ static inline blk_status_t nvme_setup_rw(struct
nvme_ns *ns,
return 0;
}
-blk_status_t nvme_setup_cmd(struct nvme_ns *ns, struct request *req,
- struct nvme_command *cmd)
+blk_status_t nvme_setup_cmd(struct nvme_ctrl *ctrl, struct nvme_ns *ns,
+ struct request *req, struct nvme_command *cmd)
{
blk_status_t ret = BLK_STS_OK;
@@ -652,6 +653,7 @@ blk_status_t nvme_setup_cmd(struct nvme_ns *ns,
struct request *req,
}
cmd->common.command_id = req->tag;
+ nvme_req(req)->ctrl = ctrl;
if (ns)
trace_nvme_setup_nvm_cmd(req->q->id, cmd);
else
diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c
index b528a2f5826c..99f683ed079e 100644
--- a/drivers/nvme/host/fc.c
+++ b/drivers/nvme/host/fc.c
@@ -2274,7 +2274,7 @@ nvme_fc_queue_rq(struct blk_mq_hw_ctx *hctx,
!nvmf_check_ready(&queue->ctrl->ctrl, rq, queue_ready))
return nvmf_fail_nonready_command(rq);
- ret = nvme_setup_cmd(ns, rq, sqe);
+ ret = nvme_setup_cmd(&ctrl->ctrl, ns, rq, sqe);
if (ret)
return ret;
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index 231807cbc849..e4a2145f3c9a 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -102,6 +102,7 @@ struct nvme_request {
u8 retries;
u8 flags;
u16 status;
+ struct nvme_ctrl *ctrl;
};
/*
@@ -419,8 +420,8 @@ void nvme_start_freeze(struct nvme_ctrl *ctrl);
#define NVME_QID_ANY -1
struct request *nvme_alloc_request(struct request_queue *q,
struct nvme_command *cmd, blk_mq_req_flags_t flags, int
qid);
-blk_status_t nvme_setup_cmd(struct nvme_ns *ns, struct request *req,
- struct nvme_command *cmd);
+blk_status_t nvme_setup_cmd(struct nvme_ctrl *ctrl, struct nvme_ns *ns,
+ struct request *req, struct nvme_command *cmd);
int nvme_submit_sync_cmd(struct request_queue *q, struct nvme_command
*cmd,
void *buf, unsigned bufflen);
int __nvme_submit_sync_cmd(struct request_queue *q, struct
nvme_command *cmd,
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index fc33804662e7..377e08c70666 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -877,7 +877,7 @@ static blk_status_t nvme_queue_rq(struct
blk_mq_hw_ctx *hctx,
if (unlikely(nvmeq->cq_vector < 0))
return BLK_STS_IOERR;
- ret = nvme_setup_cmd(ns, req, &cmnd);
+ ret = nvme_setup_cmd(&dev->ctrl, ns, req, &cmnd);
if (ret)
return ret;
diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c
index f621920af823..4de8017da484 100644
--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c
@@ -1691,7 +1691,7 @@ static blk_status_t nvme_rdma_queue_rq(struct
blk_mq_hw_ctx *hctx,
ib_dma_sync_single_for_cpu(dev, sqe->dma,
sizeof(struct nvme_command), DMA_TO_DEVICE);
- ret = nvme_setup_cmd(ns, rq, c);
+ ret = nvme_setup_cmd(&queue->ctrl->ctrl, ns, rq, c);
if (ret)
return ret;
diff --git a/drivers/nvme/target/loop.c b/drivers/nvme/target/loop.c
index d8d91f04bd7e..888bd3fefc4d 100644
--- a/drivers/nvme/target/loop.c
+++ b/drivers/nvme/target/loop.c
@@ -164,7 +164,7 @@ static blk_status_t nvme_loop_queue_rq(struct
blk_mq_hw_ctx *hctx,
if (!nvmf_check_ready(&queue->ctrl->ctrl, req, queue_ready))
return nvmf_fail_nonready_command(req);
- ret = nvme_setup_cmd(ns, req, &iod->cmd);
+ ret = nvme_setup_cmd(&queue->ctrl->ctrl, ns, req, &iod->cmd);
if (ret)
return ret;
--
[2] (slightly-modified):
--
nvme: trace: add disk name to tracepoints
Add disk name to tracepoints so we can better distinguish between
individual disks in the trace output and admin commands which do
are represented without a disk name.
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index f53416619905..14b714ebd31d 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -654,10 +654,10 @@ blk_status_t nvme_setup_cmd(struct nvme_ctrl
*ctrl, struct nvme_ns *ns,
cmd->common.command_id = req->tag;
nvme_req(req)->ctrl = ctrl;
- if (ns)
- trace_nvme_setup_nvm_cmd(req->q->id, cmd);
+ if (likely(ns))
+ trace_nvme_setup_nvm_cmd(req, cmd, ns->disk->disk_name);
else
- trace_nvme_setup_admin_cmd(cmd);
+ trace_nvme_setup_admin_cmd(req, cmd);
return ret;
}
EXPORT_SYMBOL_GPL(nvme_setup_cmd);
diff --git a/drivers/nvme/host/trace.h b/drivers/nvme/host/trace.h
index 01390f0e1671..4e42c03c50bf 100644
--- a/drivers/nvme/host/trace.h
+++ b/drivers/nvme/host/trace.h
@@ -76,9 +76,10 @@ const char *nvme_trace_parse_nvm_cmd(struct trace_seq
*p, u8 opcode,
nvme_trace_parse_nvm_cmd(p, opcode, cdw10)
TRACE_EVENT(nvme_setup_admin_cmd,
- TP_PROTO(struct nvme_command *cmd),
- TP_ARGS(cmd),
+ TP_PROTO(struct request *req, struct nvme_command *cmd),
+ TP_ARGS(req, cmd),
TP_STRUCT__entry(
+ __field(int, ctrl_id)
__field(u8, opcode)
__field(u8, flags)
__field(u16, cid)
@@ -86,6 +87,7 @@ TRACE_EVENT(nvme_setup_admin_cmd,
__array(u8, cdw10, 24)
),
TP_fast_assign(
+ __entry->ctrl_id = nvme_req(req)->ctrl->cntlid;
__entry->opcode = cmd->common.opcode;
__entry->flags = cmd->common.flags;
__entry->cid = cmd->common.command_id;
@@ -86,6 +87,7 @@ TRACE_EVENT(nvme_setup_admin_cmd,
__array(u8, cdw10, 24)
),
TP_fast_assign(
+ __entry->ctrl_id = nvme_req(req)->ctrl->cntlid;
__entry->opcode = cmd->common.opcode;
__entry->flags = cmd->common.flags;
__entry->cid = cmd->common.command_id;
@@ -93,17 +95,20 @@ TRACE_EVENT(nvme_setup_admin_cmd,
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,
+ TP_printk("nvme%d: cmdid=%u, flags=0x%x, meta=0x%llx,
cmd=(%s %s)",
+ __entry->ctrl_id, __entry->cid, __entry->flags,
+ __entry->metadata,
show_admin_opcode_name(__entry->opcode),
__parse_nvme_admin_cmd(__entry->opcode,
__entry->cdw10))
);
TRACE_EVENT(nvme_setup_nvm_cmd,
- TP_PROTO(int qid, struct nvme_command *cmd),
- TP_ARGS(qid, cmd),
+ TP_PROTO(struct request *req, struct nvme_command *cmd, char
*disk_name),
+ TP_ARGS(req, cmd, disk_name),
TP_STRUCT__entry(
+ __string(name, disk_name)
+ __field(int, ctrl_id)
__field(int, qid)
__field(u8, opcode)
__field(u8, flags)
@@ -113,7 +118,9 @@ TRACE_EVENT(nvme_setup_nvm_cmd,
__array(u8, cdw10, 24)
),
TP_fast_assign(
- __entry->qid = qid;
+ __assign_str(name, disk_name);
+ __entry->ctrl_id = nvme_req(req)->ctrl->cntlid;
+ __entry->qid = req->q->id;
__entry->opcode = cmd->common.opcode;
__entry->flags = cmd->common.flags;
__entry->cid = cmd->common.command_id;
@@ -122,9 +129,9 @@ TRACE_EVENT(nvme_setup_nvm_cmd,
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,
- __entry->flags, __entry->metadata,
+ TP_printk("nvme%d: disk=%s, qid=%d, nsid=%u, cmdid=%u,
flags=0x%x, meta=0x%llx, cmd=(%s %s)",
+ __entry->ctrl_id, __get_str(name), __entry->qid,
__entry->nsid,
+ __entry->cid, __entry->flags, __entry->metadata,
show_opcode_name(__entry->opcode),
__parse_nvme_cmd(__entry->opcode, __entry->cdw10))
);
@@ -133,6 +140,7 @@ TRACE_EVENT(nvme_complete_rq,
TP_PROTO(struct request *req),
TP_ARGS(req),
TP_STRUCT__entry(
+ __field(int, ctrl_id)
__field(int, qid)
__field(int, cid)
__field(u64, result)
@@ -141,6 +149,7 @@ TRACE_EVENT(nvme_complete_rq,
__field(u16, status)
),
TP_fast_assign(
+ __entry->ctrl_id = nvme_req(req)->ctrl->cntlid;
__entry->qid = req->q->id;
__entry->cid = req->tag;
__entry->result =
le64_to_cpu(nvme_req(req)->result.u64);
@@ -148,9 +157,10 @@ TRACE_EVENT(nvme_complete_rq,
__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,
- __entry->retries, __entry->flags, __entry->status)
+ TP_printk("nvme%d: qid=%d, cmdid=%u, res=%llu, retries=%u,
flags=0x%x, status=%u",
+ __entry->ctrl_id, __entry->qid, __entry->cid,
+ __entry->result, __entry->retries, __entry->flags,
+ __entry->status)
);
--
^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [PATCH v4 1/1] nvme: trace: add disk name to tracepoints
2018-06-25 13:31 ` Sagi Grimberg
@ 2018-06-25 14:03 ` Johannes Thumshirn
2018-06-26 10:59 ` Sagi Grimberg
0 siblings, 1 reply; 8+ messages in thread
From: Johannes Thumshirn @ 2018-06-25 14:03 UTC (permalink / raw)
To: Sagi Grimberg
Cc: Christoph Hellwig, Keith Busch, Linux Kernel Mailinglist,
Linux NVMe Mailinglist
On Mon, Jun 25, 2018 at 04:31:28PM +0300, Sagi Grimberg wrote:
>
>
> On 06/25/2018 10:08 AM, Johannes Thumshirn wrote:
> > On Tue, Jun 19, 2018 at 05:09:27PM +0300, Sagi Grimberg wrote:
> > > We are going to need it for traffic based keep alive to update
> > > that we saw a completion to extend the kato.
> > >
> > > But I suggest you simply keep a ctrl reference in struct nvme_request
> > > instead so you don't need to pass it to nvme_complete_req (that's what
> > > I did for traffic based keep alive).
> >
> > Do you have a patch for this around? IIRC I started this (as Christoph
> > also suggested it) but it turned out to be quite a big refactoring
> > work.
>
> How about the below? patch #1 is what you are looking for, patch #2 is
> a slightly modified version that applies on #1. Let me know what you
> think...
Looks good (both #1 if we want to use the two patch version or #2).
I have no idea what I did when I was trying to do when I tried it.
Johannes
--
Johannes Thumshirn Storage
jthumshirn@suse.de +49 911 74053 689
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: Felix Imendörffer, Jane Smithard, Graham Norton
HRB 21284 (AG Nürnberg)
Key fingerprint = EC38 9CAB C2C4 F25D 8600 D0D0 0393 969D 2D76 0850
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH v4 1/1] nvme: trace: add disk name to tracepoints
2018-06-25 14:03 ` Johannes Thumshirn
@ 2018-06-26 10:59 ` Sagi Grimberg
2018-06-26 11:13 ` Johannes Thumshirn
0 siblings, 1 reply; 8+ messages in thread
From: Sagi Grimberg @ 2018-06-26 10:59 UTC (permalink / raw)
To: Johannes Thumshirn
Cc: Christoph Hellwig, Keith Busch, Linux Kernel Mailinglist,
Linux NVMe Mailinglist
> Looks good (both #1 if we want to use the two patch version or #2).
>
> I have no idea what I did when I was trying to do when I tried it.
You want to submit or should I?
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH v4 1/1] nvme: trace: add disk name to tracepoints
2018-06-26 10:59 ` Sagi Grimberg
@ 2018-06-26 11:13 ` Johannes Thumshirn
2018-06-26 12:29 ` Sagi Grimberg
0 siblings, 1 reply; 8+ messages in thread
From: Johannes Thumshirn @ 2018-06-26 11:13 UTC (permalink / raw)
To: Sagi Grimberg
Cc: Keith Busch, Christoph Hellwig, Linux NVMe Mailinglist,
Linux Kernel Mailinglist
On Tue, Jun 26, 2018 at 01:59:00PM +0300, Sagi Grimberg wrote:
> You want to submit or should I?
Whatever is easier for you
--
Johannes Thumshirn Storage
jthumshirn@suse.de +49 911 74053 689
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: Felix Imendörffer, Jane Smithard, Graham Norton
HRB 21284 (AG Nürnberg)
Key fingerprint = EC38 9CAB C2C4 F25D 8600 D0D0 0393 969D 2D76 0850
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH v4 1/1] nvme: trace: add disk name to tracepoints
2018-06-26 11:13 ` Johannes Thumshirn
@ 2018-06-26 12:29 ` Sagi Grimberg
0 siblings, 0 replies; 8+ messages in thread
From: Sagi Grimberg @ 2018-06-26 12:29 UTC (permalink / raw)
To: Johannes Thumshirn
Cc: Keith Busch, Christoph Hellwig, Linux NVMe Mailinglist,
Linux Kernel Mailinglist
>> You want to submit or should I?
>
> Whatever is easier for you
You're the owner, you should go ahead with it. Thanks!
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2018-06-26 12:29 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-06-11 18:46 [PATCH v4 1/1] nvme: trace: add disk name to tracepoints Johannes Thumshirn
2018-06-19 14:09 ` Sagi Grimberg
2018-06-25 7:08 ` Johannes Thumshirn
2018-06-25 13:31 ` Sagi Grimberg
2018-06-25 14:03 ` Johannes Thumshirn
2018-06-26 10:59 ` Sagi Grimberg
2018-06-26 11:13 ` Johannes Thumshirn
2018-06-26 12:29 ` Sagi Grimberg
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