From: Baolin Wang <baolin.wang@linaro.org>
To: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Jens Axboe <axboe@kernel.dk>, Alasdair G Kergon <agk@redhat.com>,
Mike Snitzer <snitzer@redhat.com>,
"open list:DEVICE-MAPPER (LVM)" <dm-devel@redhat.com>,
David Miller <davem@davemloft.net>,
Eric Biggers <ebiggers3@gmail.com>,
Joonsoo Kim <js1304@gmail.com>,
tadeusz.struk@intel.com, smueller@chronox.de,
Masanari Iida <standby24x7@gmail.com>,
Shaohua Li <shli@kernel.org>,
Dan Williams <dan.j.williams@intel.com>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
Sagi Grimberg <sagig@mellanox.com>,
Kent Overstreet <kent.overstreet@gmail.com>,
Keith Busch <keith.busch@intel.com>, Tejun Heo <tj@kernel.org>,
Ming Lei <ming.lei@canonical.com>,
Mark Brown <broonie@kernel.org>, Arnd Bergmann <arnd@arndb.de>,
linux-crypto@vger.kernel.org, linux-block@vger.kernel.org,
"open list:SOFTWARE RAID (Multiple Disks) SUPPORT"
<linux-raid@vger.kernel.org>, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [RFC v2 2/3] crypto: Introduce CRYPTO_ALG_BULK flag
Date: Fri, 3 Jun 2016 15:10:31 +0800 [thread overview]
Message-ID: <CAMz4ku+C75VxiO41dBZDm9+PZ_BuUWqY_bmhRDbRwKPVCp+O-g@mail.gmail.com> (raw)
In-Reply-To: <20160603065146.GA29953@gondor.apana.org.au>
On 3 June 2016 at 14:51, Herbert Xu <herbert@gondor.apana.org.au> wrote:
> On Fri, Jun 03, 2016 at 02:48:34PM +0800, Baolin Wang wrote:
>>
>> If we move the IV generation into the crypto API, we also can not
>> handle every algorithm with the bulk interface. Cause we also need to
>> use different methods to map one whole bio or map one sector according
>> to the algorithm whether can support bulk mode or not. Please correct
>> me if I misunderstand your points. Thanks.
>
> Which ones can't be handled this way?
What I mean is bulk mode and sector mode's difference is not only the
IV handling method, but also the method to map the data with
scatterlists.
Then we have two processes in dm-crypt ( crypt_convert_block() and
crypt_convert_bulk_block() ) to handle the data, so we can not handle
every algorithm with the bulk interface.
>
> Cheers,
> --
> Email: Herbert Xu <herbert@gondor.apana.org.au>
> Home Page: http://gondor.apana.org.au/~herbert/
> PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
--
Baolin.wang
Best Regards
next prev parent reply other threads:[~2016-06-03 7:10 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-27 11:11 [RFC v2 0/3] Introduce the bulk mode method when sending request to crypto layer Baolin Wang
2016-05-27 11:11 ` [RFC v2 1/3] block: Introduce blk_bio_map_sg() to map one bio Baolin Wang
2016-06-03 14:35 ` Jens Axboe
2016-06-06 5:03 ` Baolin Wang
2016-06-03 14:38 ` Jens Axboe
2016-06-06 5:04 ` Baolin Wang
2016-05-27 11:11 ` [RFC v2 2/3] crypto: Introduce CRYPTO_ALG_BULK flag Baolin Wang
2016-06-02 8:26 ` Herbert Xu
2016-06-03 6:48 ` Baolin Wang
2016-06-03 6:51 ` Herbert Xu
2016-06-03 7:10 ` Baolin Wang [this message]
2016-06-03 7:54 ` Herbert Xu
2016-06-03 8:15 ` Baolin Wang
2016-06-03 8:21 ` Herbert Xu
2016-06-03 9:23 ` Baolin Wang
2016-06-03 10:09 ` Herbert Xu
2016-06-03 10:47 ` Baolin Wang
2016-05-27 11:11 ` [RFC v2 3/3] md: dm-crypt: Introduce the bulk mode method when sending request Baolin Wang
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