From patchwork Wed Apr 13 19:06:52 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Corentin LABBE X-Patchwork-Id: 12812441 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C6F53C43217 for ; Wed, 13 Apr 2022 19:12:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=mmZoQNx7RiIcn5h38gfGiWpBD070HXbY3hsICJYVAZg=; b=wObssSiHoOGeML QWoJiH/XuFMwhpZc3vntkeR7qjQHFTqnDXuREf4pu2aTdDksLsGXskB3PFjKPTsT/9aeUitguopHk 2nwxeFFb2aLOchcCDFQL5fIDWRbH4A2zZWUf9JdcBr0nZRiTHIhmgYEt5Ys6/RfXNhBfzwMAY46+R b0tm5qf9N+K0ADkb8KkKoAmdKFZukEhbaYthh6rYysgQHcGAcGGW0GLfk8jxmDlIUHFla/HX1I74j O6zQ0qdRHPW4xZA7W6UwWBwi821+q+ZmMz7W8L7t9oy0D1K1SkSuCFLc0OGN/8HRIA61DbvrmKFoC sFGhZJOe4vFoqEHZvBzw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1neiPE-002KRX-IN; Wed, 13 Apr 2022 19:11:56 +0000 Received: from mail-wr1-x431.google.com ([2a00:1450:4864:20::431]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1neiL1-002I5t-Ly for linux-rockchip@lists.infradead.org; Wed, 13 Apr 2022 19:07:40 +0000 Received: by mail-wr1-x431.google.com with SMTP id i20so3951345wrb.13 for ; Wed, 13 Apr 2022 12:07:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20210112.gappssmtp.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=S9VyfrMMeO74fGBihz9CdP7fNaeijlioCZxpeCtBsgM=; b=VJkZGMZ30BkWca8y5IRVe16sowoopuOm5O1GmP85NqlZJ0+Ha8t3uwYgClJdsQ8ZoD AyaMA5Iv8dZ/RzXsJWyWewzwHaobiJ8dbm1urhdyyClJbVYgIQ564kZQ2JJcfKW1MN0k VzL9rumsz5ojZAQSE7fui3qz8TK5DChxTeHTUvVbCEI0xRe7eqTR+O/k0OhNjUbANMHV VaBv0EH2ZSZqDDMb3AONxbL3XgeGT2icZF3FOv0nVjYgeyDbUZ0nuGd05w4rER4cVWR8 oqxw1+j7k+uH/XVevjOrWGzcN2qXcD/uCCjA4jXPm8fsYxQzB/ViPGbpeSWQnfGIguJH HrGw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=S9VyfrMMeO74fGBihz9CdP7fNaeijlioCZxpeCtBsgM=; b=zB2dgHoREDCXw1En3KdREMvfdrFUuacyHzuF+W7TddHHPj8CVo3FvQrgi6Iz82s1V4 ZGdpZwy69JYoiWcX0bx782RtL7hnGofrjOBlAvJ07VM1Xm54r4Gkzw1tooDWd8YPcUAo KPzVe/nOrqhZNZGidljOm3d2hxa0ov09s2YXBTXQs1XwxQSMkOngm+//tYYcKNtsGD/R lJaxl3O+8BWqRTUQua17Imkk3otOeYlhruqGf6V6gUPrwyX25j4DSXYotcV7wEvDES/+ MsfVFyBFyHExZJ52wmEF1IIzTxvu4lKbpI9hYGkKBM5OYIqIBug324lXyQsyLm0aHOZJ CMWw== X-Gm-Message-State: AOAM533+dNKEpMuHh8lwfF5n721um9Ls1gjkR3FoTUxdAYavfChJCKt0 fMO+5m6oS+Or24UclEtPdNz/RA== X-Google-Smtp-Source: ABdhPJxdFfVAZr1iMyA3WEwo7PBMOWS1qHgOSSxBPwsLPV9fa5RyaDyeHHh3uIfBLIOw0ojM9xtTOg== X-Received: by 2002:adf:f152:0:b0:207:b0fb:b332 with SMTP id y18-20020adff152000000b00207b0fbb332mr231659wro.17.1649876854515; Wed, 13 Apr 2022 12:07:34 -0700 (PDT) Received: from localhost.localdomain (laubervilliers-658-1-213-31.w90-63.abo.wanadoo.fr. [90.63.244.31]) by smtp.googlemail.com with ESMTPSA id o29-20020a05600c511d00b0038e3532b23csm3551852wms.15.2022.04.13.12.07.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 Apr 2022 12:07:33 -0700 (PDT) From: Corentin Labbe To: heiko@sntech.de, herbert@gondor.apana.org.au, krzysztof.kozlowski+dt@linaro.org, robh+dt@kernel.org Cc: linux-arm-kernel@lists.infradead.org, linux-crypto@vger.kernel.org, linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Corentin Labbe Subject: [PATCH v5 12/33] crypto: rockchip: add debugfs Date: Wed, 13 Apr 2022 19:06:52 +0000 Message-Id: <20220413190713.1427956-13-clabbe@baylibre.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220413190713.1427956-1-clabbe@baylibre.com> References: <20220413190713.1427956-1-clabbe@baylibre.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220413_120735_819840_2E3721C9 X-CRM114-Status: GOOD ( 18.92 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org This patch enable to access usage stats for each algorithm. Signed-off-by: Corentin Labbe --- drivers/crypto/Kconfig | 10 ++++ drivers/crypto/rockchip/rk3288_crypto.c | 47 +++++++++++++++++++ drivers/crypto/rockchip/rk3288_crypto.h | 11 +++++ drivers/crypto/rockchip/rk3288_crypto_ahash.c | 8 ++++ .../crypto/rockchip/rk3288_crypto_skcipher.c | 15 ++++++ 5 files changed, 91 insertions(+) diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig index d68cc2dc2bd5..b609215ecd62 100644 --- a/drivers/crypto/Kconfig +++ b/drivers/crypto/Kconfig @@ -801,6 +801,16 @@ config CRYPTO_DEV_ROCKCHIP This driver interfaces with the hardware crypto accelerator. Supporting cbc/ecb chainmode, and aes/des/des3_ede cipher mode. +config CRYPTO_DEV_ROCKCHIP_DEBUG + bool "Enable Rockchip crypto stats" + depends on CRYPTO_DEV_ROCKCHIP + depends on DEBUG_FS + help + Say y to enable Rockchip crypto debug stats. + This will create /sys/kernel/debug/rk3288_crypto/stats for displaying + the number of requests per algorithm and other internal stats. + + config CRYPTO_DEV_ZYNQMP_AES tristate "Support for Xilinx ZynqMP AES hw accelerator" depends on ZYNQMP_FIRMWARE || COMPILE_TEST diff --git a/drivers/crypto/rockchip/rk3288_crypto.c b/drivers/crypto/rockchip/rk3288_crypto.c index 8f9664acc78d..3e1b4f3b2422 100644 --- a/drivers/crypto/rockchip/rk3288_crypto.c +++ b/drivers/crypto/rockchip/rk3288_crypto.c @@ -95,6 +95,41 @@ static struct rk_crypto_tmp *rk_cipher_algs[] = { &rk_ahash_md5, }; +#ifdef CONFIG_CRYPTO_DEV_ROCKCHIP_DEBUG +static int rk_crypto_debugfs_show(struct seq_file *seq, void *v) +{ + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(rk_cipher_algs); i++) { + if (!rk_cipher_algs[i]->dev) + continue; + switch (rk_cipher_algs[i]->type) { + case CRYPTO_ALG_TYPE_SKCIPHER: + seq_printf(seq, "%s %s reqs=%lu fallback=%lu\n", + rk_cipher_algs[i]->alg.skcipher.base.cra_driver_name, + rk_cipher_algs[i]->alg.skcipher.base.cra_name, + rk_cipher_algs[i]->stat_req, rk_cipher_algs[i]->stat_fb); + seq_printf(seq, "\tfallback due to length: %lu\n", + rk_cipher_algs[i]->stat_fb_len); + seq_printf(seq, "\tfallback due to alignment: %lu\n", + rk_cipher_algs[i]->stat_fb_align); + seq_printf(seq, "\tfallback due to SGs: %lu\n", + rk_cipher_algs[i]->stat_fb_sgdiff); + break; + case CRYPTO_ALG_TYPE_AHASH: + seq_printf(seq, "%s %s reqs=%lu fallback=%lu\n", + rk_cipher_algs[i]->alg.hash.halg.base.cra_driver_name, + rk_cipher_algs[i]->alg.hash.halg.base.cra_name, + rk_cipher_algs[i]->stat_req, rk_cipher_algs[i]->stat_fb); + break; + } + } + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(rk_crypto_debugfs); +#endif + static int rk_crypto_register(struct rk_crypto_info *crypto_info) { unsigned int i, k; @@ -246,6 +281,15 @@ static int rk_crypto_probe(struct platform_device *pdev) goto err_register_alg; } +#ifdef CONFIG_CRYPTO_DEV_ROCKCHIP_DEBUG + /* Ignore error of debugfs */ + crypto_info->dbgfs_dir = debugfs_create_dir("rk3288_crypto", NULL); + crypto_info->dbgfs_stats = debugfs_create_file("stats", 0444, + crypto_info->dbgfs_dir, + crypto_info, + &rk_crypto_debugfs_fops); +#endif + dev_info(dev, "Crypto Accelerator successfully registered\n"); return 0; @@ -260,6 +304,9 @@ static int rk_crypto_remove(struct platform_device *pdev) { struct rk_crypto_info *crypto_tmp = platform_get_drvdata(pdev); +#ifdef CONFIG_CRYPTO_DEV_ROCKCHIP_DEBUG + debugfs_remove_recursive(crypto_tmp->dbgfs_dir); +#endif rk_crypto_unregister(); rk_crypto_disable_clk(crypto_tmp); crypto_engine_exit(crypto_tmp->engine); diff --git a/drivers/crypto/rockchip/rk3288_crypto.h b/drivers/crypto/rockchip/rk3288_crypto.h index d924ea17402a..945a8184bbad 100644 --- a/drivers/crypto/rockchip/rk3288_crypto.h +++ b/drivers/crypto/rockchip/rk3288_crypto.h @@ -7,6 +7,7 @@ #include #include #include +#include #include #include #include @@ -199,6 +200,10 @@ struct rk_crypto_info { struct crypto_engine *engine; struct completion complete; int status; +#ifdef CONFIG_CRYPTO_DEV_ROCKCHIP_DEBUG + struct dentry *dbgfs_dir; + struct dentry *dbgfs_stats; +#endif }; /* the private variable of hash */ @@ -239,6 +244,12 @@ struct rk_crypto_tmp { struct skcipher_alg skcipher; struct ahash_alg hash; } alg; + unsigned long stat_req; + unsigned long stat_fb; + unsigned long stat_fb_len; + unsigned long stat_fb_sglen; + unsigned long stat_fb_align; + unsigned long stat_fb_sgdiff; }; extern struct rk_crypto_tmp rk_ecb_aes_alg; diff --git a/drivers/crypto/rockchip/rk3288_crypto_ahash.c b/drivers/crypto/rockchip/rk3288_crypto_ahash.c index d08e2438d356..8856c6226be6 100644 --- a/drivers/crypto/rockchip/rk3288_crypto_ahash.c +++ b/drivers/crypto/rockchip/rk3288_crypto_ahash.c @@ -39,6 +39,10 @@ static int rk_ahash_digest_fb(struct ahash_request *areq) struct rk_ahash_rctx *rctx = ahash_request_ctx(areq); struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq); struct rk_ahash_ctx *tfmctx = crypto_ahash_ctx(tfm); + struct ahash_alg *alg = __crypto_ahash_alg(tfm->base.__crt_alg); + struct rk_crypto_tmp *algt = container_of(alg, struct rk_crypto_tmp, alg.hash); + + algt->stat_fb++; ahash_request_set_tfm(&rctx->fallback_req, tfmctx->fallback_tfm); rctx->fallback_req.base.flags = areq->base.flags & @@ -249,6 +253,8 @@ static int rk_hash_run(struct crypto_engine *engine, void *breq) struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq); struct rk_ahash_rctx *rctx = ahash_request_ctx(areq); struct rk_ahash_ctx *tctx = crypto_ahash_ctx(tfm); + struct ahash_alg *alg = __crypto_ahash_alg(tfm->base.__crt_alg); + struct rk_crypto_tmp *algt = container_of(alg, struct rk_crypto_tmp, alg.hash); struct scatterlist *sg = areq->src; int err = 0; int i; @@ -256,6 +262,8 @@ static int rk_hash_run(struct crypto_engine *engine, void *breq) rctx->mode = 0; + algt->stat_req++; + switch (crypto_ahash_digestsize(tfm)) { case SHA1_DIGEST_SIZE: rctx->mode = RK_CRYPTO_HASH_SHA1; diff --git a/drivers/crypto/rockchip/rk3288_crypto_skcipher.c b/drivers/crypto/rockchip/rk3288_crypto_skcipher.c index 1ed297f5d809..91b8a4c574da 100644 --- a/drivers/crypto/rockchip/rk3288_crypto_skcipher.c +++ b/drivers/crypto/rockchip/rk3288_crypto_skcipher.c @@ -18,6 +18,8 @@ static int rk_cipher_need_fallback(struct skcipher_request *req) { struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); unsigned int bs = crypto_skcipher_blocksize(tfm); + struct skcipher_alg *alg = crypto_skcipher_alg(tfm); + struct rk_crypto_tmp *algt = container_of(alg, struct rk_crypto_tmp, alg.skcipher); struct scatterlist *sgs, *sgd; unsigned int stodo, dtodo, len; @@ -29,20 +31,25 @@ static int rk_cipher_need_fallback(struct skcipher_request *req) sgd = req->dst; while (sgs && sgd) { if (!IS_ALIGNED(sgs->offset, sizeof(u32))) { + algt->stat_fb_align++; return true; } if (!IS_ALIGNED(sgd->offset, sizeof(u32))) { + algt->stat_fb_align++; return true; } stodo = min(len, sgs->length); if (stodo % bs) { + algt->stat_fb_len++; return true; } dtodo = min(len, sgd->length); if (dtodo % bs) { + algt->stat_fb_len++; return true; } if (stodo != dtodo) { + algt->stat_fb_sgdiff++; return true; } len -= stodo; @@ -57,8 +64,12 @@ static int rk_cipher_fallback(struct skcipher_request *areq) struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(areq); struct rk_cipher_ctx *op = crypto_skcipher_ctx(tfm); struct rk_cipher_rctx *rctx = skcipher_request_ctx(areq); + struct skcipher_alg *alg = crypto_skcipher_alg(tfm); + struct rk_crypto_tmp *algt = container_of(alg, struct rk_crypto_tmp, alg.skcipher); int err; + algt->stat_fb++; + skcipher_request_set_tfm(&rctx->fallback_req, op->fallback_tfm); skcipher_request_set_callback(&rctx->fallback_req, areq->base.flags, areq->base.complete, areq->base.data); @@ -324,6 +335,10 @@ static int rk_cipher_run(struct crypto_engine *engine, void *async_req) u8 *ivtouse = areq->iv; unsigned int len = areq->cryptlen; unsigned int todo; + struct skcipher_alg *alg = crypto_skcipher_alg(tfm); + struct rk_crypto_tmp *algt = container_of(alg, struct rk_crypto_tmp, alg.skcipher); + + algt->stat_req++; ivsize = crypto_skcipher_ivsize(tfm); if (areq->iv && crypto_skcipher_ivsize(tfm) > 0) {