From: Sagi Grimberg <sagi@grimberg.me>
Date: Fri, 2 Nov 2018 17:28:14 +0000 (-0700)
Subject: nvme: cache controller attributes
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=3e53ba38a9404434a8b57683825279f4305b5a76;p=openwrt%2Fstaging%2Fblogic.git

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>
---

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index e57c673ae737..9de6244a345c 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -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 */
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index f1e4566e6ca8..4be7bbcfe66d 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -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;