From: Corentin Labbe <clabbe@baylibre.com>
To: heiko@sntech.de, ardb@kernel.org, davem@davemloft.net,
herbert@gondor.apana.org.au, krzysztof.kozlowski+dt@linaro.org,
mturquette@baylibre.com, robh+dt@kernel.org, sboyd@kernel.org
Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
linux-clk@vger.kernel.org, linux-crypto@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org,
Corentin Labbe <clabbe@baylibre.com>,
John Keeping <john@metanate.com>
Subject: [PATCH v10 12/33] crypto: rockchip: add debugfs
Date: Tue, 27 Sep 2022 07:54:50 +0000 [thread overview]
Message-ID: <20220927075511.3147847-13-clabbe@baylibre.com> (raw)
In-Reply-To: <20220927075511.3147847-1-clabbe@baylibre.com>
This patch enable to access usage stats for each algorithm.
Reviewed-by: John Keeping <john@metanate.com>
Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
---
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 c30b5a39c2ac..2947888d3b82 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -686,6 +686,16 @@ 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 <crypto/algapi.h>
#include <linux/dma-mapping.h>
#include <linux/interrupt.h>
+#include <linux/debugfs.h>
#include <linux/delay.h>
#include <linux/scatterlist.h>
#include <crypto/engine.h>
@@ -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) {
--
2.35.1
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next prev parent reply other threads:[~2022-09-27 9:04 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-27 7:54 [PATCH v10 00/33] crypto: rockchip: permit to pass self-tests Corentin Labbe
2022-09-27 7:54 ` [PATCH v10 01/33] crypto: rockchip: use dev_err for error message about interrupt Corentin Labbe
2022-09-27 7:54 ` [PATCH v10 02/33] crypto: rockchip: do not use uninitialized variable Corentin Labbe
2022-09-27 7:54 ` [PATCH v10 03/33] crypto: rockchip: do not do custom power management Corentin Labbe
2022-09-27 7:54 ` [PATCH v10 04/33] crypto: rockchip: fix privete/private typo Corentin Labbe
2022-09-27 7:54 ` [PATCH v10 05/33] crypto: rockchip: do not store mode globally Corentin Labbe
2022-09-27 7:54 ` [PATCH v10 06/33] crypto: rockchip: add fallback for cipher Corentin Labbe
2022-09-27 7:54 ` [PATCH v10 07/33] crypto: rockchip: add fallback for ahash Corentin Labbe
2022-09-27 7:54 ` [PATCH v10 08/33] crypto: rockchip: better handle cipher key Corentin Labbe
2022-09-27 7:54 ` [PATCH v10 09/33] crypto: rockchip: remove non-aligned handling Corentin Labbe
2022-09-27 7:54 ` [PATCH v10 10/33] crypto: rockchip: rework by using crypto_engine Corentin Labbe
2022-09-27 7:54 ` [PATCH v10 11/33] crypto: rockchip: rewrite type Corentin Labbe
2022-09-27 7:54 ` Corentin Labbe [this message]
2022-09-27 7:54 ` [PATCH v10 13/33] crypto: rockchip: introduce PM Corentin Labbe
2022-09-27 7:54 ` [PATCH v10 14/33] crypto: rockchip: handle reset also in PM Corentin Labbe
2022-09-27 7:54 ` [PATCH v10 15/33] crypto: rockchip: use clk_bulk to simplify clock management Corentin Labbe
2022-09-27 7:54 ` [PATCH v10 16/33] crypto: rockchip: add myself as maintainer Corentin Labbe
2022-09-27 7:54 ` [PATCH v10 17/33] crypto: rockchip: use read_poll_timeout Corentin Labbe
2022-09-27 7:54 ` [PATCH v10 18/33] crypto: rockchip: fix style issue Corentin Labbe
2022-09-27 7:54 ` [PATCH v10 19/33] crypto: rockchip: add support for rk3328 Corentin Labbe
2022-09-27 7:54 ` [PATCH v10 20/33] crypto: rockchip: rename ablk functions to cipher Corentin Labbe
2022-09-27 7:54 ` [PATCH v10 21/33] crypto: rockchip: rework rk_handle_req function Corentin Labbe
2022-09-27 7:55 ` [PATCH v10 22/33] crypto: rockchip: use a rk_crypto_info variable instead of lot of indirection Corentin Labbe
2022-09-27 7:55 ` [PATCH v10 23/33] crypto: rockchip: use the rk_crypto_info given as parameter Corentin Labbe
2022-09-27 7:55 ` [PATCH v10 24/33] dt-bindings: crypto: convert rockchip-crypto to YAML Corentin Labbe
2022-09-27 7:55 ` [PATCH v10 25/33] dt-bindings: crypto: rockchip: add new compatible Corentin Labbe
2022-09-29 22:14 ` Rob Herring
2022-09-27 7:55 ` [PATCH v10 26/33] clk: rk3399: use proper crypto0 name Corentin Labbe
2022-09-28 18:58 ` Stephen Boyd
2022-09-27 7:55 ` [PATCH v10 27/33] arm64: dts: rockchip: add rk3328 crypto node Corentin Labbe
2022-09-27 7:55 ` [PATCH v10 28/33] arm64: dts: rockchip: rk3399: add " Corentin Labbe
2022-12-11 15:51 ` Rob Herring
2022-12-12 12:44 ` Corentin LABBE
2022-09-27 7:55 ` [PATCH v10 29/33] crypto: rockchip: store crypto_info in request context Corentin Labbe
2022-09-27 7:55 ` [PATCH v10 30/33] crypto: rockchip: Check for clocks numbers and their frequencies Corentin Labbe
2022-09-27 7:55 ` [PATCH v10 31/33] crypto: rockchip: rk_ahash_reg_init use crypto_info from parameter Corentin Labbe
2022-09-27 7:55 ` [PATCH v10 32/33] crypto: rockchip: permit to have more than one reset Corentin Labbe
2022-09-27 7:55 ` [PATCH v10 33/33] crypto: rockchip: Add support for RK3399 Corentin Labbe
2022-10-21 13:20 ` [PATCH v10 00/33] crypto: rockchip: permit to pass self-tests Corentin LABBE
2022-10-21 17:09 ` Heiko Stübner
2022-10-26 7:41 ` Corentin LABBE
2022-10-26 10:05 ` Herbert Xu
2022-10-26 10:25 ` Heiko Stübner
2022-10-28 2:06 ` Krzysztof Kozlowski
2022-10-28 5:01 ` Herbert Xu
2022-10-29 8:12 ` (subset) " Heiko Stuebner
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