From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephan Mueller Subject: Re: [PATCH 0/3] crypto: algif - change algif_skcipher to be asynchronous Date: Mon, 02 Feb 2015 17:40:07 +0100 Message-ID: <17805101.rkttaZiZYV@tauon> References: <20150129231338.25156.65450.stgit@tstruk-mobl1> <1653087.XMGL7JlhQx@tachyon.chronox.de> <54CF91A6.2020100@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Cc: herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, netdev@vger.kernel.org, davem@davemloft.net, qat-linux@intel.com, linux-kernel@vger.kernel.org To: Tadeusz Struk Return-path: In-Reply-To: <54CF91A6.2020100@intel.com> Sender: linux-crypto-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Am Montag, 2. Februar 2015, 07:03:02 schrieb Tadeusz Struk: Hi Tadeusz, >On 02/01/2015 10:31 AM, Stephan Mueller wrote: >> Hi Tadeusz, >> >>> > The way the algif_skcipher works currently is that on >>> > sendmsg/sendpage it builds an sgl for the input data and then on >>> > read/recvmsg it sends the job for encryption putting the user to >>> > sleep till the data is processed. This way it can only handle one >>> > job at a given time. >>> > To be able to fuly utilize the potential of existing crypto >>> > hardware >>> > accelerators it is required to submit multiple jobs in >>> > asynchronously. >>> > First patch enables asynchronous read and write on socket. >>> > Second patch enables af_alg sgl to be linked. >>> > Third patch implement asynch read for skcipher. >> >> Do you have a code fragment on how to test that patch? I would like >> to see whether I can test that with my libkcapi. > >Hi Stephan, >This is what I'm using. Thanks for the listing. Are you aware of the speed tester that I added to libkcapi? See [1] subdir speed-test/ If you want to play with it, all you need to do is to add your init/encryption/fini code into cryptoperf-skcipher.c. The key is that cp_ablkcipher_enc_test/cp_ablkcipher_dec_test performs only the encryption/decryption operation (setkey, etc is done in the init call). The speed measuring is done only over that function. [1] http://www.chronox.de/libkcapi.html Ciao Stephan