diff options
| author | Sagi Grimberg <sagi@grimberg.me> | 2018-11-02 10:28:15 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-12-07 22:26:55 -0700 |
| commit | 6e3ca03ee934572d5de4fb2224c01e12c4d422c8 (patch) | |
| tree | b6e8dc7fa480aefbd87f68712e651e3cda747078 /drivers/nvme/host/nvme.h | |
| parent | 3e53ba38a9404434a8b57683825279f4305b5a76 (diff) | |
nvme: support traffic based keep-alive
If the controller supports traffic based keep alive, we restart the keep
alive timer if any admin or io commands was completed during the kato
period. This prevents a possible starvation of keep alive commands in
the presence of heavy traffic as in such case, we already have a health
indication from the host perspective.
Only set a comp_seen indicator in case the controller supports keep
alive to minimize the overhead for pci controllers.
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/host/nvme.h')
| -rw-r--r-- | drivers/nvme/host/nvme.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index 4be7bbcfe66d..f2594d468f29 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -145,6 +145,7 @@ enum nvme_ctrl_state { }; struct nvme_ctrl { + bool comp_seen; enum nvme_ctrl_state state; bool identified; spinlock_t lock; |