linux-kernel - Re: [RFC PATCH v2 0/3] Cavium ThunderX ZIP driver

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Date:   Thu, 9 Mar 2017 18:46:54 +0800
From:   Herbert Xu <herbert@...dor.apana.org.au>
To:     Mahipal Challa <mahipalreddy2006@...il.com>
Cc:     davem@...emloft.net, linux-crypto@...r.kernel.org,
        linux-kernel@...r.kernel.org, Jan.Glauber@...ium.com,
        Vishnu.Nair@...ium.com, pathreya@...ium.com,
        Mahipal.Challa@...ium.com
Subject: Re: [RFC PATCH v2 0/3] Cavium ThunderX ZIP driver

On Wed, Feb 15, 2017 at 10:45:07AM +0530, Mahipal Challa wrote:
> Hi Herbert,
> 
> This series adds support for hardware accelerated compression & decompression
> as found on ThunderX (arm64) SOCs.
> 
> As per your suggestion, we've switched to the new crypto acomp/scomp interface.
> 
> To test the ZIP driver, we modified the kernel's ZSWAP to use acomp API's.
> 
> Performance numbers from ZSWAP look promising.
> The "average time" for compressing a 4KB page:
> 
> Compression Software    : 278 usec
> Compression HW deflate  :  17 usec
> Compression HW LZS      :  11 usec
> 
> Decompression Software  : 20 usec
> Decompression HW deflate:  8 usec
> Decompression HW LZS    :  6 usec
> 
> Addressed the review comments from the RFC v1.
>  - Added acomp/scomp crypto interface support.
>  - Improved the error handling.
>  - ZIP command completion codes are renamed suitably.
>  - Removed some un-used code.
>  - raw_smp_processor_id() replaced with smp_processor_id().
>  - Some more miscellaneous changes. 
> 
> Patches are on top of "kernel/git/herbert/crypto-2.6.git" repository
> 
> Please provide your feedback.

All applied.  Thanks.
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt