From patchwork Wed Jun 1 04:58:05 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "(Exiting) Baolin Wang" X-Patchwork-Id: 9146045 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id A6F8A60757 for ; Wed, 1 Jun 2016 04:59:44 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9FA7F200E7 for ; Wed, 1 Jun 2016 04:59:44 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9437A23749; Wed, 1 Jun 2016 04:59:44 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 36683200E7 for ; Wed, 1 Jun 2016 04:59:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757333AbcFAE7m (ORCPT ); Wed, 1 Jun 2016 00:59:42 -0400 Received: from mail-pf0-f175.google.com ([209.85.192.175]:32769 "EHLO mail-pf0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757210AbcFAE6x (ORCPT ); Wed, 1 Jun 2016 00:58:53 -0400 Received: by mail-pf0-f175.google.com with SMTP id b124so7205056pfb.0 for ; Tue, 31 May 2016 21:58:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :in-reply-to:references; bh=JrnmqpJJckOrnPZH2ETGagU+nog3J7+1RSv1kF6Yn5o=; b=Bt1EP9jOGkrGQSQDJzoLrECPYWSbpTbnbZV4SBR5VMlL91fsNV/GYf1OAcYp8AB/BK FgC+LuVAWgwarqeV676Eu1qUBHEAeoXAVoKp0DzxX5j0CFuDrT/TEZeS0zdMOC5XkWS/ 2cM/XsOYq8HuaHX1HdasTgQPUkj1Se7C3quoM= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:in-reply-to:references; bh=JrnmqpJJckOrnPZH2ETGagU+nog3J7+1RSv1kF6Yn5o=; b=cJsieTcAzid+mYDK8w3ytitC8KFN21B492XmYsBFh6CJtX082a5iShFteZ5dJsFTCP HE1Nh2J48HDr3nkZRQ9R3xDfmJ4i++3F+lNUvu+53iKpjR81/lVO6/WsW+IrdwVVke0T ca1nQR6gNKSlKII8Osw6v43YH4w7lMoi7tZYF/PoPnXRstm6UhyQsBJoUTwcrqB2+uW9 prTjlXQ9KgaPkbENBkwzG2NxY+vs0QoVJLb4Q5OnH90dEJy2Av2YZSaeT9OitAj/AG95 1W/rMznJ+dJaVJ0X1/LToRvRylCf4DCQaPyGHh3ohz5UT1UyUKPpGN3YJIbnn+1Q+Ra9 KIMQ== X-Gm-Message-State: ALyK8tJwWXHZajriLpigLF+Iv9oEgtcYyJ+DaK5juKH4QKP7wB+aFpnRJDEBdbN0fzZ/Jg5X X-Received: by 10.98.82.77 with SMTP id g74mr4269701pfb.113.1464757132329; Tue, 31 May 2016 21:58:52 -0700 (PDT) Received: from baolinwangubtpc.spreadtrum.com ([175.111.195.49]) by smtp.gmail.com with ESMTPSA id d71sm42764420pfd.80.2016.05.31.21.58.45 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 31 May 2016 21:58:51 -0700 (PDT) From: Baolin Wang To: axboe@kernel.dk, agk@redhat.com, snitzer@redhat.com, dm-devel@redhat.com, herbert@gondor.apana.org.au, davem@davemloft.net Cc: ebiggers3@gmail.com, js1304@gmail.com, tadeusz.struk@intel.com, smueller@chronox.de, standby24x7@gmail.com, shli@kernel.org, dan.j.williams@intel.com, martin.petersen@oracle.com, sagig@mellanox.com, kent.overstreet@gmail.com, keith.busch@intel.com, tj@kernel.org, ming.lei@canonical.com, broonie@kernel.org, arnd@arndb.de, linux-crypto@vger.kernel.org, linux-block@vger.kernel.org, linux-raid@vger.kernel.org, linux-kernel@vger.kernel.org, baolin.wang@linaro.org Subject: [RFC v3 2/4] crypto: Introduce CRYPTO_ALG_BULK flag Date: Wed, 1 Jun 2016 12:58:05 +0800 Message-Id: <47e9ddd8c9ea9ad9e29c8cb027d19d8459ea1479.1464756501.git.baolin.wang@linaro.org> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: References: In-Reply-To: References: Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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 --- include/crypto/skcipher.h | 7 +++++++ include/linux/crypto.h | 6 ++++++ 2 files changed, 13 insertions(+) diff --git a/include/crypto/skcipher.h b/include/crypto/skcipher.h index 0f987f5..d89d29a 100644 --- a/include/crypto/skcipher.h +++ b/include/crypto/skcipher.h @@ -519,5 +519,12 @@ static inline void skcipher_request_set_crypt( req->iv = iv; } +static inline unsigned int skcipher_is_bulk_mode(struct crypto_skcipher *sk_tfm) +{ + struct crypto_tfm *tfm = crypto_skcipher_tfm(sk_tfm); + + return crypto_tfm_alg_bulk(tfm); +} + #endif /* _CRYPTO_SKCIPHER_H */ diff --git a/include/linux/crypto.h b/include/linux/crypto.h index 6e28c89..a315487 100644 --- a/include/linux/crypto.h +++ b/include/linux/crypto.h @@ -63,6 +63,7 @@ #define CRYPTO_ALG_DEAD 0x00000020 #define CRYPTO_ALG_DYING 0x00000040 #define CRYPTO_ALG_ASYNC 0x00000080 +#define CRYPTO_ALG_BULK 0x00000100 /* * Set this bit if and only if the algorithm requires another algorithm of @@ -623,6 +624,11 @@ static inline u32 crypto_tfm_alg_type(struct crypto_tfm *tfm) return tfm->__crt_alg->cra_flags & CRYPTO_ALG_TYPE_MASK; } +static inline unsigned int crypto_tfm_alg_bulk(struct crypto_tfm *tfm) +{ + return tfm->__crt_alg->cra_flags & CRYPTO_ALG_BULK; +} + static inline unsigned int crypto_tfm_alg_blocksize(struct crypto_tfm *tfm) { return tfm->__crt_alg->cra_blocksize;