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Tue, 14 Jan 2020 06:00:03 -0800 (PST) From: Corentin Labbe To: alexandre.torgue@st.com, davem@davemloft.net, herbert@gondor.apana.org.au, mcoquelin.stm32@gmail.com, mripard@kernel.org, wens@csie.org, iuliana.prodan@nxp.com, horia.geanta@nxp.com, aymen.sghaier@nxp.com Subject: [PATCH RFC 09/10] crypto: engine: permit to batch requests Date: Tue, 14 Jan 2020 14:59:35 +0100 Message-Id: <20200114135936.32422-10-clabbe.montjoie@gmail.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200114135936.32422-1-clabbe.montjoie@gmail.com> References: <20200114135936.32422-1-clabbe.montjoie@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200114_060007_028901_FC92AF39 X-CRM114-Status: GOOD ( 14.93 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2a00:1450:4864:20:0:0:0:441 listed in] [list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (clabbe.montjoie[at]gmail.com) -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-kernel@vger.kernel.org, linux-sunxi@googlegroups.com, Corentin Labbe , linux-crypto@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Now everything is ready, this patch permits to choose the number of request to batch. Signed-off-by: Corentin Labbe --- crypto/crypto_engine.c | 32 +++++++++++++++++++++++++++----- include/crypto/engine.h | 2 ++ 2 files changed, 29 insertions(+), 5 deletions(-) diff --git a/crypto/crypto_engine.c b/crypto/crypto_engine.c index e23a398ba330..e9cd9ec9a732 100644 --- a/crypto/crypto_engine.c +++ b/crypto/crypto_engine.c @@ -114,6 +114,7 @@ static void crypto_pump_requests(struct crypto_engine *engine, } engine->ct = 0; +retry: /* Get the fist request from the engine queue to handle */ backlog = crypto_get_backlog(&engine->queue); async_req = crypto_dequeue_request(&engine->queue); @@ -151,7 +152,10 @@ static void crypto_pump_requests(struct crypto_engine *engine, } engine->cur_reqs[engine->ct].prepared = true; } - engine->ct++; + if (++engine->ct < engine->rmax && engine->queue.qlen > 0) { + spin_lock_irqsave(&engine->queue_lock, flags); + goto retry; + } if (!enginectx->op.do_one_request) { dev_err(engine->dev, "failed to do request\n"); ret = -EINVAL; @@ -393,15 +397,18 @@ int crypto_engine_stop(struct crypto_engine *engine) EXPORT_SYMBOL_GPL(crypto_engine_stop); /** - * crypto_engine_alloc_init - allocate crypto hardware engine structure and + * crypto_engine_alloc_init2 - allocate crypto hardware engine structure and * initialize it. * @dev: the device attached with one hardware engine * @rt: whether this queue is set to run as a realtime task + * @rmax: The number of request that the engine can batch in one + * @qlen: The size of the crypto queue * * This must be called from context that can sleep. * Return: the crypto engine structure on success, else NULL. */ -struct crypto_engine *crypto_engine_alloc_init(struct device *dev, bool rt) +struct crypto_engine *crypto_engine_alloc_init2(struct device *dev, bool rt, + int rmax, int qlen) { struct sched_param param = { .sched_priority = MAX_RT_PRIO / 2 }; struct crypto_engine *engine; @@ -421,12 +428,12 @@ struct crypto_engine *crypto_engine_alloc_init(struct device *dev, bool rt) engine->priv_data = dev; snprintf(engine->name, sizeof(engine->name), "%s-engine", dev_name(dev)); - engine->rmax = 1; + engine->rmax = rmax; engine->cur_reqs = devm_kzalloc(dev, sizeof(struct cur_req) * engine->rmax, GFP_KERNEL); if (!engine->cur_reqs) return NULL; - crypto_init_queue(&engine->queue, CRYPTO_ENGINE_MAX_QLEN); + crypto_init_queue(&engine->queue, qlen); spin_lock_init(&engine->queue_lock); engine->kworker = kthread_create_worker(0, "%s", engine->name); @@ -443,6 +450,21 @@ struct crypto_engine *crypto_engine_alloc_init(struct device *dev, bool rt) return engine; } +EXPORT_SYMBOL_GPL(crypto_engine_alloc_init2); + +/** + * crypto_engine_alloc_init - allocate crypto hardware engine structure and + * initialize it. + * @dev: the device attached with one hardware engine + * @rt: whether this queue is set to run as a realtime task + * + * This must be called from context that can sleep. + * Return: the crypto engine structure on success, else NULL. + */ +struct crypto_engine *crypto_engine_alloc_init(struct device *dev, bool rt) +{ + return crypto_engine_alloc_init2(dev, rt, 1, CRYPTO_ENGINE_MAX_QLEN); +} EXPORT_SYMBOL_GPL(crypto_engine_alloc_init); /** diff --git a/include/crypto/engine.h b/include/crypto/engine.h index 55d3dbc2498c..fe0dfea8bf07 100644 --- a/include/crypto/engine.h +++ b/include/crypto/engine.h @@ -115,6 +115,8 @@ void crypto_finalize_skcipher_request(struct crypto_engine *engine, int crypto_engine_start(struct crypto_engine *engine); int crypto_engine_stop(struct crypto_engine *engine); struct crypto_engine *crypto_engine_alloc_init(struct device *dev, bool rt); +struct crypto_engine *crypto_engine_alloc_init2(struct device *dev, bool rt, + int rmax, int qlen); int crypto_engine_exit(struct crypto_engine *engine); #endif /* _CRYPTO_ENGINE_H */