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| 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 /include/linux/nvme.h | |
| parent | nvme: cache controller attributes (diff) | |
| download | wireguard-linux-6e3ca03ee934572d5de4fb2224c01e12c4d422c8.tar.xz wireguard-linux-6e3ca03ee934572d5de4fb2224c01e12c4d422c8.zip | |
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 'include/linux/nvme.h')
| -rw-r--r-- | include/linux/nvme.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/nvme.h b/include/linux/nvme.h index 753c83a5c01f..429c4cf90899 100644 --- a/include/linux/nvme.h +++ b/include/linux/nvme.h @@ -200,6 +200,7 @@ enum { enum nvme_ctrl_attr { NVME_CTRL_ATTR_HID_128_BIT = (1 << 0), + NVME_CTRL_ATTR_TBKAS = (1 << 6), }; struct nvme_id_ctrl { |