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

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Message-ID: <CALyTkE-HXr8GKRCuZCwGTe1zJ3s0vK2diyb7Jhuq9=K5wRzroQ@mail.gmail.com>
Date:   Thu, 9 Mar 2017 23:55:52 +0530
From:   Mahipal Reddy <mahipalreddy2006@...il.com>
To:     Herbert Xu <herbert@...dor.apana.org.au>
Cc:     davem@...emloft.net, linux-crypto@...r.kernel.org,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Jan.Glauber@...ium.com, Vishnu Nair <Vishnu.Nair@...ium.com>,
        pathreya@...ium.com, Mahipal Challa <Mahipal.Challa@...ium.com>
Subject: Re: [RFC PATCH v2 0/3] Cavium ThunderX ZIP driver

On Thu, Mar 9, 2017 at 4:16 PM, Herbert Xu <herbert@...dor.apana.org.au> wrote:
> 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

Thank you Herbert.

Regards,
-Mahipal