[PATCH 6/6] nvme: return -ETIMEDOUT in nvme_submit_sync_cmd()
Hannes Reinecke
hare at suse.de
Thu Feb 25 05:55:27 EST 2021
When a command times out we should be returning -ETIMEDOUT in
nvme_submit_sync_cmd(), and not requiring the caller to guess whether
a specific NVMe status should be interpreted as a timeout.
Signed-off-by: Hannes Reinecke <hare at suse.de>
---
drivers/nvme/host/core.c | 2 ++
drivers/nvme/host/fc.c | 1 +
drivers/nvme/host/nvme.h | 1 +
drivers/nvme/host/rdma.c | 1 +
drivers/nvme/host/tcp.c | 1 +
5 files changed, 6 insertions(+)
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 624531a6b7c6..5c1ec3bfb9d3 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -1004,6 +1004,8 @@ int __nvme_submit_sync_cmd(struct request_queue *q, struct nvme_command *cmd,
*result = nvme_req(req)->result;
if (nvme_req(req)->flags & NVME_REQ_CANCELLED)
ret = -EINTR;
+ else if (nvme_req(req)->flags & NVME_REQ_TIMEOUT)
+ ret = -ETIMEDOUT;
else
ret = nvme_req(req)->status;
out:
diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c
index 86395b66310d..bcc086fcbe61 100644
--- a/drivers/nvme/host/fc.c
+++ b/drivers/nvme/host/fc.c
@@ -2551,6 +2551,7 @@ nvme_fc_timeout(struct request *rq, bool reserved)
"x%08x/x%08x\n",
ctrl->cnum, op->queue->qnum, sqe->common.opcode,
sqe->connect.fctype, sqe->common.cdw10, sqe->common.cdw11);
+ op->nreq.flags |= NVME_REQ_TIMEOUT;
if (__nvme_fc_abort_op(ctrl, op))
nvme_fc_error_recovery(ctrl, "io timeout abort failed");
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index 07b34175c6ce..02aa4ba665c0 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -173,6 +173,7 @@ struct nvme_request {
enum {
NVME_REQ_CANCELLED = (1 << 0),
NVME_REQ_USERCMD = (1 << 1),
+ NVME_REQ_TIMEOUT = (1 << 2),
};
static inline struct nvme_request *nvme_req(struct request *req)
diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c
index 53ac4d7442ba..99ad2e10b295 100644
--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c
@@ -1990,6 +1990,7 @@ static void nvme_rdma_complete_timed_out(struct request *rq)
nvme_rdma_stop_queue(queue);
if (blk_mq_request_started(rq) && !blk_mq_request_completed(rq)) {
nvme_req(rq)->status = NVME_SC_HOST_ABORTED_CMD;
+ nvme_req(rq)->flags |= NVME_REQ_TIMEOUT;
blk_mq_complete_request(rq);
}
}
diff --git a/drivers/nvme/host/tcp.c b/drivers/nvme/host/tcp.c
index 69f59d2c5799..64aab742c84d 100644
--- a/drivers/nvme/host/tcp.c
+++ b/drivers/nvme/host/tcp.c
@@ -2189,6 +2189,7 @@ static void nvme_tcp_complete_timed_out(struct request *rq)
nvme_tcp_stop_queue(ctrl, nvme_tcp_queue_id(req->queue));
if (blk_mq_request_started(rq) && !blk_mq_request_completed(rq)) {
nvme_req(rq)->status = NVME_SC_HOST_ABORTED_CMD;
+ nvme_req(rq)->flags |= NVME_REQ_TIMEOUT;
blk_mq_complete_request(rq);
}
}
--
2.29.2
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