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Commit 3e53ba38 authored by Sagi Grimberg's avatar Sagi Grimberg Committed by Jens Axboe
Browse files

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: default avatarChaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: default avatarSagi Grimberg <sagi@grimberg.me>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 12b21171

drivers/nvme/host/core.c

+1 −0
Original line number Diff line number Diff line
@@ -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 */

drivers/nvme/host/nvme.h

+1 −0
Original line number Diff line number Diff line
@@ -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;