[PATCHv2 3/7] lib: add rocksoft model crc64

[Hannes Reinecke]

On 2/1/22 20:01, Keith Busch wrote:
> The NVM Express specification extended data integrity fields to 64 bits
> using the Rocksoft^TM parameters. Add the poly to the crc64 table
> generation, and provide a library routine implementing the algorithm.
> 
> The Rocksoft 64-bit CRC model parameters are as follows:
>      Poly: 0xAD93D23594C93659
>      Initial value: 0xFFFFFFFFFFFFFFFF
>      Reflected Input: True
>      Reflected Output: True
>      Xor Final: 0xFFFFFFFFFFFFFFFF
> 
> Since this model used reflected bits, the implementation generates the
> reflected table so the result is ordered consistently.
> 
> Cc: Eric Biggers <ebiggers at kernel.org>
> Signed-off-by: Keith Busch <kbusch at kernel.org>
> ---
> v1->v2:
> 
Reviewed-by: Hannes Reinecke <hare at suse.de>

Cheers,

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