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author | Sagi Grimberg <sagi@grimberg.me> | 2018-11-02 18:28:13 +0100 |
---|---|---|
committer | Jens Axboe <axboe@kernel.dk> | 2018-12-08 06:26:56 +0100 |
commit | c09305ae49970e15cd18828c0f78b766e8cf224f (patch) | |
tree | a6056f345fd79a895cd62e17be2e3e70ea365187 /drivers/nvme/target/nvmet.h | |
parent | nvme: support traffic based keep-alive (diff) | |
download | linux-c09305ae49970e15cd18828c0f78b766e8cf224f.tar.xz linux-c09305ae49970e15cd18828c0f78b766e8cf224f.zip |
nvmet: support for traffic based keep-alive
A controller that supports traffic based keep-alive can restart the keep
alive timer even when no keep-alive was not received in the kato period
as long as other admin or I/O commands were received. For each command
set ctrl->cmd_seen to true, and when keep-alive timer expires, if any
commands were seen, resched ka_work instead of escalating to a fatal
error.
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/nvme/target/nvmet.h')
-rw-r--r-- | drivers/nvme/target/nvmet.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/nvme/target/nvmet.h b/drivers/nvme/target/nvmet.h index c2b4d9ee6391..860218edeb6c 100644 --- a/drivers/nvme/target/nvmet.h +++ b/drivers/nvme/target/nvmet.h @@ -163,6 +163,8 @@ struct nvmet_ctrl { struct nvmet_cq **cqs; struct nvmet_sq **sqs; + bool cmd_seen; + struct mutex lock; u64 cap; u32 cc; |