[PATCH 0/5] crypto: talitos: Add crypto async queue handling

Martin Hicks mort at bork.org
Sat Feb 21 05:26:21 AEDT 2015


Resending to linux-crypto in plain text.
Sorry to everyone else for the duplication.
mh

On Fri, Feb 20, 2015 at 1:23 PM, Martin Hicks <mort at bork.org> wrote:
>
> I've just noticed that performance is pretty terrible with maxcpus=1, so
> I'll investigate that.
> mh
>
> On Fri, Feb 20, 2015 at 11:21 AM, Martin Hicks <mort at bork.org> wrote:
>>
>> I was testing dm-crypt performance with a Freescale P1022 board with
>> a recent kernel and was getting IO errors while doing testing with LUKS.
>> Investigation showed that all hardware FIFO slots were filling and
>> the driver was returning EAGAIN to the block layer, which is not an
>> expected response for an async crypto implementation.
>>
>> The following patch series adds a few small fixes, and reworks the
>> submission path to use the crypto_queue mechanism to handle the
>> request backlog.
>>
>>
>> Martin Hicks (5):
>>   crypto: talitos: Simplify per-channel initialization
>>   crypto: talitos: Remove MD5_BLOCK_SIZE
>>   crypto: talitos: Fix off-by-one and use all hardware slots
>>   crypto: talitos: Reorganize request submission data structures
>>   crypto: talitos: Add software backlog queue handling
>>
>>  drivers/crypto/talitos.c |  189
>> ++++++++++++++++++++++++----------------------
>>  drivers/crypto/talitos.h |   44 +++++++++--
>>  2 files changed, 137 insertions(+), 96 deletions(-)
>>
>> --
>> 1.7.10.4
>>
>
>
>
> --
> Martin Hicks P.Eng.      |         mort at bork.org
> Bork Consulting Inc.     |   +1 (613) 266-2296



-- 
Martin Hicks P.Eng.      |         mort at bork.org
Bork Consulting Inc.     |   +1 (613) 266-2296


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