Re: [PATCH v4 01/15] nvmet: Rapid Path Failure Recovery set controller identify fields

[Hannes Reinecke <hare@suse.de>]

On 3/28/26 01:43, Mohamed Khalfella wrote:
> TP8028 Rapid Path Failure Recovery defined new fields in controller
> identify response. The newly defined fields are:
> 
> - CIU (Controller Instance UNIQUIFIER): is an 8bit non-zero value that
> is assigned a random value when controller is first created. The value
> is expected to be incremented when RDY bit in CSTS register is asserted
> - CIRN (Controller Instance Random Number): is 64bit random value that
> gets generated when controller is created. CIRN is regenerated everytime
> RDY bit is CSTS register is asserted.
> - CCRL (Cross-Controller Reset Limit) is an 8bit value that defines the
> maximum number of in-progress controller reset operations. CCRL is
> hardcoded to 4 as recommended by TP8028.
> 
> Signed-off-by: Mohamed Khalfella <mkhalfella@purestorage.com>
> ---
>   drivers/nvme/target/admin-cmd.c |  5 +++++
>   drivers/nvme/target/core.c      |  9 +++++++++
>   drivers/nvme/target/nvmet.h     |  2 ++
>   include/linux/nvme.h            | 10 ++++++++--
>   4 files changed, 24 insertions(+), 2 deletions(-)
> 
Reviewed-by: Hannes Reinecke <hare@suse.de>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke                  Kernel Storage Architect
hare@suse.de                                +49 911 74053 688
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