Re: [PATCH v2 06/14] nvme: Rapid Path Failure Recovery read controller identify fields

Randy Jennings
2026-02-11T01:56:50Z

On Fri, Jan 30, 2026 at 2:36 PM Mohamed Khalfella
<mkhalfella@purestorage.com> wrote:
>
> TP8028 Rapid path failure added new fileds to controller identify
> response. Read CIU (Controller Instance Uniquifier), CIRN (Controller
> Instance Random Number), and CCRL (Cross-Controller Reset Limit) from
> controller identify response. Expose CIU and CIRN as sysfs attributes
> so the values can be used directrly by user if needed.
>
> TP4129 KATO Corrections and Clarifications defined CQT (Command Quiesce
> Time) which is used along with KATO (Keep Alive Timeout) to set an upper
> limit for attempting Cross-Controller Recovery.
>
> Signed-off-by: Mohamed Khalfella <mkhalfella@purestorage.com>
Reviewed-by: Randy Jennings <randyj@purestorage.com>