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nvme: cache controller attributes 

We get the controller attributes in identify, cache them as we'll need
them for traffic based keep alive support.

Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Sagi Grimberg 2018-11-02 10:28:14 -07:00 committed by Jens Axboe
parent 12b2117161
commit 3e53ba38a9
2 changed files with 2 additions and 0 deletions
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1
drivers/nvme/host/core.c
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@ -2409,6 +2409,7 @@ int nvme_init_identify(struct nvme_ctrl *ctrl)
ctrl->sgls = le32_to_cpu(id->sgls);
ctrl->kas = le16_to_cpu(id->kas);
ctrl->max_namespaces = le32_to_cpu(id->mnan);
ctrl->ctratt = le32_to_cpu(id->ctratt);
if (id->rtd3e) {
/* us -> s */

1
drivers/nvme/host/nvme.h
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@ -194,6 +194,7 @@ struct nvme_ctrl {
u8 apsta;
u32 oaes;
u32 aen_result;
u32 ctratt;
unsigned int shutdown_timeout;
unsigned int kato;
bool subsystem;