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Message-Id: <20220401201804.2867154-6-clabbe@baylibre.com>
Date: Fri, 1 Apr 2022 20:17:36 +0000
From: Corentin Labbe <clabbe@...libre.com>
To: heiko@...ech.de, herbert@...dor.apana.org.au, krzk+dt@...nel.org,
robh+dt@...nel.org
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-rockchip@...ts.infradead.org,
Corentin Labbe <clabbe@...libre.com>
Subject: [PATCH v4 05/33] crypto: rockchip: do not store mode globally
Storing the mode globally does not work if 2 requests are handled in the
same time.
We should store it in a request context.
Fixes: ce0183cb6464b ("crypto: rockchip - switch to skcipher API")
Signed-off-by: Corentin Labbe <clabbe@...libre.com>
---
drivers/crypto/rockchip/rk3288_crypto.h | 5 +-
.../crypto/rockchip/rk3288_crypto_skcipher.c | 58 ++++++++++++-------
2 files changed, 41 insertions(+), 22 deletions(-)
diff --git a/drivers/crypto/rockchip/rk3288_crypto.h b/drivers/crypto/rockchip/rk3288_crypto.h
index 656d6795d400..c919d9a43a08 100644
--- a/drivers/crypto/rockchip/rk3288_crypto.h
+++ b/drivers/crypto/rockchip/rk3288_crypto.h
@@ -245,10 +245,13 @@ struct rk_ahash_rctx {
struct rk_cipher_ctx {
struct rk_crypto_info *dev;
unsigned int keylen;
- u32 mode;
u8 iv[AES_BLOCK_SIZE];
};
+struct rk_cipher_rctx {
+ u32 mode;
+};
+
enum alg_type {
ALG_TYPE_HASH,
ALG_TYPE_CIPHER,
diff --git a/drivers/crypto/rockchip/rk3288_crypto_skcipher.c b/drivers/crypto/rockchip/rk3288_crypto_skcipher.c
index 8c44a19eab75..bbd0bf52bf07 100644
--- a/drivers/crypto/rockchip/rk3288_crypto_skcipher.c
+++ b/drivers/crypto/rockchip/rk3288_crypto_skcipher.c
@@ -76,9 +76,10 @@ static int rk_aes_ecb_encrypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct rk_cipher_rctx *rctx = skcipher_request_ctx(req);
struct rk_crypto_info *dev = ctx->dev;
- ctx->mode = RK_CRYPTO_AES_ECB_MODE;
+ rctx->mode = RK_CRYPTO_AES_ECB_MODE;
return rk_handle_req(dev, req);
}
@@ -86,9 +87,10 @@ static int rk_aes_ecb_decrypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct rk_cipher_rctx *rctx = skcipher_request_ctx(req);
struct rk_crypto_info *dev = ctx->dev;
- ctx->mode = RK_CRYPTO_AES_ECB_MODE | RK_CRYPTO_DEC;
+ rctx->mode = RK_CRYPTO_AES_ECB_MODE | RK_CRYPTO_DEC;
return rk_handle_req(dev, req);
}
@@ -96,9 +98,10 @@ static int rk_aes_cbc_encrypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct rk_cipher_rctx *rctx = skcipher_request_ctx(req);
struct rk_crypto_info *dev = ctx->dev;
- ctx->mode = RK_CRYPTO_AES_CBC_MODE;
+ rctx->mode = RK_CRYPTO_AES_CBC_MODE;
return rk_handle_req(dev, req);
}
@@ -106,9 +109,10 @@ static int rk_aes_cbc_decrypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct rk_cipher_rctx *rctx = skcipher_request_ctx(req);
struct rk_crypto_info *dev = ctx->dev;
- ctx->mode = RK_CRYPTO_AES_CBC_MODE | RK_CRYPTO_DEC;
+ rctx->mode = RK_CRYPTO_AES_CBC_MODE | RK_CRYPTO_DEC;
return rk_handle_req(dev, req);
}
@@ -116,9 +120,10 @@ static int rk_des_ecb_encrypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct rk_cipher_rctx *rctx = skcipher_request_ctx(req);
struct rk_crypto_info *dev = ctx->dev;
- ctx->mode = 0;
+ rctx->mode = 0;
return rk_handle_req(dev, req);
}
@@ -126,9 +131,10 @@ static int rk_des_ecb_decrypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct rk_cipher_rctx *rctx = skcipher_request_ctx(req);
struct rk_crypto_info *dev = ctx->dev;
- ctx->mode = RK_CRYPTO_DEC;
+ rctx->mode = RK_CRYPTO_DEC;
return rk_handle_req(dev, req);
}
@@ -136,9 +142,10 @@ static int rk_des_cbc_encrypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct rk_cipher_rctx *rctx = skcipher_request_ctx(req);
struct rk_crypto_info *dev = ctx->dev;
- ctx->mode = RK_CRYPTO_TDES_CHAINMODE_CBC;
+ rctx->mode = RK_CRYPTO_TDES_CHAINMODE_CBC;
return rk_handle_req(dev, req);
}
@@ -146,9 +153,10 @@ static int rk_des_cbc_decrypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct rk_cipher_rctx *rctx = skcipher_request_ctx(req);
struct rk_crypto_info *dev = ctx->dev;
- ctx->mode = RK_CRYPTO_TDES_CHAINMODE_CBC | RK_CRYPTO_DEC;
+ rctx->mode = RK_CRYPTO_TDES_CHAINMODE_CBC | RK_CRYPTO_DEC;
return rk_handle_req(dev, req);
}
@@ -156,9 +164,10 @@ static int rk_des3_ede_ecb_encrypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct rk_cipher_rctx *rctx = skcipher_request_ctx(req);
struct rk_crypto_info *dev = ctx->dev;
- ctx->mode = RK_CRYPTO_TDES_SELECT;
+ rctx->mode = RK_CRYPTO_TDES_SELECT;
return rk_handle_req(dev, req);
}
@@ -166,9 +175,10 @@ static int rk_des3_ede_ecb_decrypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct rk_cipher_rctx *rctx = skcipher_request_ctx(req);
struct rk_crypto_info *dev = ctx->dev;
- ctx->mode = RK_CRYPTO_TDES_SELECT | RK_CRYPTO_DEC;
+ rctx->mode = RK_CRYPTO_TDES_SELECT | RK_CRYPTO_DEC;
return rk_handle_req(dev, req);
}
@@ -176,9 +186,10 @@ static int rk_des3_ede_cbc_encrypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct rk_cipher_rctx *rctx = skcipher_request_ctx(req);
struct rk_crypto_info *dev = ctx->dev;
- ctx->mode = RK_CRYPTO_TDES_SELECT | RK_CRYPTO_TDES_CHAINMODE_CBC;
+ rctx->mode = RK_CRYPTO_TDES_SELECT | RK_CRYPTO_TDES_CHAINMODE_CBC;
return rk_handle_req(dev, req);
}
@@ -186,9 +197,10 @@ static int rk_des3_ede_cbc_decrypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct rk_cipher_rctx *rctx = skcipher_request_ctx(req);
struct rk_crypto_info *dev = ctx->dev;
- ctx->mode = RK_CRYPTO_TDES_SELECT | RK_CRYPTO_TDES_CHAINMODE_CBC |
+ rctx->mode = RK_CRYPTO_TDES_SELECT | RK_CRYPTO_TDES_CHAINMODE_CBC |
RK_CRYPTO_DEC;
return rk_handle_req(dev, req);
}
@@ -199,6 +211,7 @@ static void rk_ablk_hw_init(struct rk_crypto_info *dev)
skcipher_request_cast(dev->async_req);
struct crypto_skcipher *cipher = crypto_skcipher_reqtfm(req);
struct crypto_tfm *tfm = crypto_skcipher_tfm(cipher);
+ struct rk_cipher_rctx *rctx = skcipher_request_ctx(req);
struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(cipher);
u32 ivsize, block, conf_reg = 0;
@@ -206,22 +219,22 @@ static void rk_ablk_hw_init(struct rk_crypto_info *dev)
ivsize = crypto_skcipher_ivsize(cipher);
if (block == DES_BLOCK_SIZE) {
- ctx->mode |= RK_CRYPTO_TDES_FIFO_MODE |
+ rctx->mode |= RK_CRYPTO_TDES_FIFO_MODE |
RK_CRYPTO_TDES_BYTESWAP_KEY |
RK_CRYPTO_TDES_BYTESWAP_IV;
- CRYPTO_WRITE(dev, RK_CRYPTO_TDES_CTRL, ctx->mode);
+ CRYPTO_WRITE(dev, RK_CRYPTO_TDES_CTRL, rctx->mode);
memcpy_toio(dev->reg + RK_CRYPTO_TDES_IV_0, req->iv, ivsize);
conf_reg = RK_CRYPTO_DESSEL;
} else {
- ctx->mode |= RK_CRYPTO_AES_FIFO_MODE |
+ rctx->mode |= RK_CRYPTO_AES_FIFO_MODE |
RK_CRYPTO_AES_KEY_CHANGE |
RK_CRYPTO_AES_BYTESWAP_KEY |
RK_CRYPTO_AES_BYTESWAP_IV;
if (ctx->keylen == AES_KEYSIZE_192)
- ctx->mode |= RK_CRYPTO_AES_192BIT_key;
+ rctx->mode |= RK_CRYPTO_AES_192BIT_key;
else if (ctx->keylen == AES_KEYSIZE_256)
- ctx->mode |= RK_CRYPTO_AES_256BIT_key;
- CRYPTO_WRITE(dev, RK_CRYPTO_AES_CTRL, ctx->mode);
+ rctx->mode |= RK_CRYPTO_AES_256BIT_key;
+ CRYPTO_WRITE(dev, RK_CRYPTO_AES_CTRL, rctx->mode);
memcpy_toio(dev->reg + RK_CRYPTO_AES_IV_0, req->iv, ivsize);
}
conf_reg |= RK_CRYPTO_BYTESWAP_BTFIFO |
@@ -246,6 +259,7 @@ static int rk_set_data_start(struct rk_crypto_info *dev)
struct skcipher_request *req =
skcipher_request_cast(dev->async_req);
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct rk_cipher_rctx *rctx = skcipher_request_ctx(req);
struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
u32 ivsize = crypto_skcipher_ivsize(tfm);
u8 *src_last_blk = page_address(sg_page(dev->sg_src)) +
@@ -254,7 +268,7 @@ static int rk_set_data_start(struct rk_crypto_info *dev)
/* Store the iv that need to be updated in chain mode.
* And update the IV buffer to contain the next IV for decryption mode.
*/
- if (ctx->mode & RK_CRYPTO_DEC) {
+ if (rctx->mode & RK_CRYPTO_DEC) {
memcpy(ctx->iv, src_last_blk, ivsize);
sg_pcopy_to_buffer(dev->first, dev->src_nents, req->iv,
ivsize, dev->total - ivsize);
@@ -294,11 +308,12 @@ static void rk_iv_copyback(struct rk_crypto_info *dev)
struct skcipher_request *req =
skcipher_request_cast(dev->async_req);
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct rk_cipher_rctx *rctx = skcipher_request_ctx(req);
struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
u32 ivsize = crypto_skcipher_ivsize(tfm);
/* Update the IV buffer to contain the next IV for encryption mode. */
- if (!(ctx->mode & RK_CRYPTO_DEC)) {
+ if (!(rctx->mode & RK_CRYPTO_DEC)) {
if (dev->aligned) {
memcpy(req->iv, sg_virt(dev->sg_dst) +
dev->sg_dst->length - ivsize, ivsize);
@@ -314,11 +329,12 @@ static void rk_update_iv(struct rk_crypto_info *dev)
struct skcipher_request *req =
skcipher_request_cast(dev->async_req);
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct rk_cipher_rctx *rctx = skcipher_request_ctx(req);
struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
u32 ivsize = crypto_skcipher_ivsize(tfm);
u8 *new_iv = NULL;
- if (ctx->mode & RK_CRYPTO_DEC) {
+ if (rctx->mode & RK_CRYPTO_DEC) {
new_iv = ctx->iv;
} else {
new_iv = page_address(sg_page(dev->sg_dst)) +
--
2.35.1
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