diff options
| author | Minwoo Im | 2021-01-08 23:46:57 +0900 |
|---|---|---|
| committer | Christoph Hellwig | 2021-02-02 10:26:10 +0100 |
| commit | f9063a53274d25a878310db3fb645bfa9e49c917 (patch) | |
| tree | 5f20c63489399b51bda5a9e7f315ac78b864506d /drivers/nvme | |
| parent | 60b152a50820a125336ecae26da489059fc61ce1 (diff) | |
nvme: support command retry delay for admin command
The controller can request a delay retrying a failed command by setting
the Command Retry Delay (CRD) field in the Completion Queue Entry.
Currentlty this features is only applied to commands on the I/O queue, but
not to commands on the admin queue. Retreive the nvme_ctrl from the
request so that no namespace is required and apply the feature to all
commands.
Signed-off-by: Minwoo Im <minwoo.im.dev@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/nvme')
| -rw-r--r-- | drivers/nvme/host/core.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index ff0f42652abb..636a88c93194 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -279,14 +279,13 @@ static blk_status_t nvme_error_status(u16 status) static void nvme_retry_req(struct request *req) { - struct nvme_ns *ns = req->q->queuedata; unsigned long delay = 0; u16 crd; /* The mask and shift result must be <= 3 */ crd = (nvme_req(req)->status & NVME_SC_CRD) >> 11; - if (ns && crd) - delay = ns->ctrl->crdt[crd - 1] * 100; + if (crd) + delay = nvme_req(req)->ctrl->crdt[crd - 1] * 100; nvme_req(req)->retries++; blk_mq_requeue_request(req, false); |