Re: [RFC v4 2/4] crypto: Introduce CRYPTO_ALG_BULK flag

Baolin Wang
2016-06-08T02:01:00Z

Hi Herbert,

On 7 June 2016 at 22:16, Herbert Xu <herbert@gondor.apana.org.au> wrote:
> On Tue, Jun 07, 2016 at 08:17:05PM +0800, Baolin Wang wrote:
>> Now some cipher hardware engines prefer to handle bulk block rather than one
>> sector (512 bytes) created by dm-crypt, cause these cipher engines can handle
>> the intermediate values (IV) by themselves in one bulk block. This means we
>> can increase the size of the request by merging request rather than always 512
>> bytes and thus increase the hardware engine processing speed.
>>
>> So introduce 'CRYPTO_ALG_BULK' flag to indicate this cipher can support bulk
>> mode.
>>
>> Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
>
> Nack. As I said before, please do it using explicit IV generators
> like we do for IPsec.

OK. I would like to try your suggestion. Thanks.

> --
> Email: Herbert Xu <herbert@gondor.apana.org.au>
> Home Page: http://gondor.apana.org.au/~herbert/
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--
Baolin.wang
Best Regards