[PATCH 3/3] nvme: improve handling of long keep alives

[Uday Shankar]

On Tue, Apr 18, 2023 at 07:59:51PM +0300, Sagi Grimberg wrote:
> Is this something that was met in reality?
> 
> it is surprising that host->ctrl is super fast and
> ctrl->host is super slow to the extent that this
> situation exists in reality...

We haven't seen this exact issue in reality, but we more generally have
observed significant delays in host-side keep alive processing with
controllers that do not support TBKA. This patch should help with that
issue.