[PATCH v2 3/4] nvme-core: cache controller attributes

[hare@suse.de (Hannes Reinecke)]

On 10/30/18 6:43 PM, Sagi Grimberg wrote:
> We get the controller attributes in identify, cache
> them as we'll need them for traffic based keep alive
> support.
> 
> Signed-off-by: Sagi Grimberg <sagi at grimberg.me>
> ---
>   drivers/nvme/host/core.c | 1 +
>   drivers/nvme/host/nvme.h | 1 +
>   2 files changed, 2 insertions(+)
> 
> diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
> index 65c42448e904..ef609239c9c5 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 9fefba039d1e..4dd7535caf1b 100644
> --- a/drivers/nvme/host/nvme.h
> +++ b/drivers/nvme/host/nvme.h
> @@ -193,6 +193,7 @@ struct nvme_ctrl {
>   	u8 apsta;
>   	u32 oaes;
>   	u32 aen_result;
> +	u32 ctratt;
>   	unsigned int shutdown_timeout;
>   	unsigned int kato;
>   	bool subsystem;
> 
Reviewed-by: Hannes Reinecke <hare at suse.com>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		   Teamlead Storage & Networking
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