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authorMax Gurtovoy <maxg@mellanox.com>2019-10-13 19:57:35 +0300
committerJens Axboe <axboe@kernel.dk>2019-11-04 10:56:41 -0700
commit2dc3947b53f573e8a75ea9cbec5588df88ca502e (patch)
tree1423fc41c0bb78c998d648863b90d684c756e294
parent59534b9d606e7f566970a6f8621c6022f7c19ff1 (diff)
downloadlinux-2dc3947b53f573e8a75ea9cbec5588df88ca502e.tar.bz2
nvme: introduce "Command Aborted By host" status code
Fix the status code of canceled requests initiated by the host according to TP4028 (Status Code 0x371): "Command Aborted By host: The command was aborted as a result of host action (e.g., the host disconnected the Fabric connection)." Also in a multipath environment, unless otherwise specified, errors of this type (path related) should be retried using a different path, if one is available. Signed-off-by: Max Gurtovoy <maxg@mellanox.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Keith Busch <kbusch@kernel.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
-rw-r--r--drivers/nvme/host/core.c2
-rw-r--r--drivers/nvme/host/multipath.c1
-rw-r--r--include/linux/nvme.h1
3 files changed, 3 insertions, 1 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index fd7dea36c3b6..dfa122beb4cf 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -298,7 +298,7 @@ bool nvme_cancel_request(struct request *req, void *data, bool reserved)
if (blk_mq_request_completed(req))
return true;
- nvme_req(req)->status = NVME_SC_HOST_PATH_ERROR;
+ nvme_req(req)->status = NVME_SC_HOST_ABORTED_CMD;
blk_mq_complete_request(req);
return true;
}
diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c
index 30de7efef003..103c04fa7746 100644
--- a/drivers/nvme/host/multipath.c
+++ b/drivers/nvme/host/multipath.c
@@ -95,6 +95,7 @@ void nvme_failover_req(struct request *req)
}
break;
case NVME_SC_HOST_PATH_ERROR:
+ case NVME_SC_HOST_ABORTED_CMD:
/*
* Temporary transport disruption in talking to the controller.
* Try to send on a new path.
diff --git a/include/linux/nvme.h b/include/linux/nvme.h
index f61d6906e59d..a260cd754f28 100644
--- a/include/linux/nvme.h
+++ b/include/linux/nvme.h
@@ -1368,6 +1368,7 @@ enum {
NVME_SC_ANA_INACCESSIBLE = 0x302,
NVME_SC_ANA_TRANSITION = 0x303,
NVME_SC_HOST_PATH_ERROR = 0x370,
+ NVME_SC_HOST_ABORTED_CMD = 0x371,
NVME_SC_CRD = 0x1800,
NVME_SC_DNR = 0x4000,