From: Ryder Lee <ryder.lee@mediatek.com>
To: Herbert Xu <herbert@gondor.apana.org.au>
Cc: <linux-mediatek@lists.infradead.org>,
<linux-crypto@vger.kernel.org>,
Ryder Lee <ryder.lee@mediatek.com>
Subject: [PATCH 9/9] crypto: mediatek - add support to OFB mode and CFB128 mode
Date: Mon, 20 Feb 2017 17:27:02 +0800 [thread overview]
Message-ID: <1487582822-30393-10-git-send-email-ryder.lee@mediatek.com> (raw)
In-Reply-To: <1487582822-30393-1-git-send-email-ryder.lee@mediatek.com>
This patch adds support to OFB mode and CFB128 mode.
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
---
drivers/crypto/mediatek/mtk-aes.c | 84 ++++++++++++++++++++++++++++++++++++---
1 file changed, 78 insertions(+), 6 deletions(-)
diff --git a/drivers/crypto/mediatek/mtk-aes.c b/drivers/crypto/mediatek/mtk-aes.c
index 9e845e8..c2bdfb9 100644
--- a/drivers/crypto/mediatek/mtk-aes.c
+++ b/drivers/crypto/mediatek/mtk-aes.c
@@ -25,7 +25,7 @@
#define AES_CT_CTRL_HDR cpu_to_le32(0x00220000)
-/* AES-CBC/ECB/CTR command token */
+/* AES-CBC/ECB/CTR/OFB/CFB command token */
#define AES_CMD0 cpu_to_le32(0x05000000)
#define AES_CMD1 cpu_to_le32(0x2d060000)
#define AES_CMD2 cpu_to_le32(0xe4a63806)
@@ -52,6 +52,8 @@
/* AES transform information word 1 fields */
#define AES_TFM_ECB cpu_to_le32(0x0 << 0)
#define AES_TFM_CBC cpu_to_le32(0x1 << 0)
+#define AES_TFM_OFB cpu_to_le32(0x4 << 0)
+#define AES_TFM_CFB128 cpu_to_le32(0x5 << 0)
#define AES_TFM_CTR_INIT cpu_to_le32(0x2 << 0) /* init counter to 1 */
#define AES_TFM_CTR_LOAD cpu_to_le32(0x6 << 0) /* load/reuse counter */
#define AES_TFM_3IV cpu_to_le32(0x7 << 5) /* using IV 0-2 */
@@ -60,13 +62,15 @@
#define AES_TFM_ENC_HASH cpu_to_le32(0x1 << 17)
/* AES flags */
-#define AES_FLAGS_CIPHER_MSK GENMASK(2, 0)
+#define AES_FLAGS_CIPHER_MSK GENMASK(4, 0)
#define AES_FLAGS_ECB BIT(0)
#define AES_FLAGS_CBC BIT(1)
#define AES_FLAGS_CTR BIT(2)
-#define AES_FLAGS_GCM BIT(3)
-#define AES_FLAGS_ENCRYPT BIT(4)
-#define AES_FLAGS_BUSY BIT(5)
+#define AES_FLAGS_OFB BIT(3)
+#define AES_FLAGS_CFB128 BIT(4)
+#define AES_FLAGS_GCM BIT(5)
+#define AES_FLAGS_ENCRYPT BIT(6)
+#define AES_FLAGS_BUSY BIT(7)
#define AES_AUTH_TAG_ERR cpu_to_le32(BIT(26))
@@ -412,7 +416,7 @@ static int mtk_aes_map(struct mtk_cryp *cryp, struct mtk_aes_rec *aes)
return mtk_aes_complete(cryp, aes, -EINVAL);
}
-/* Initialize transform information of CBC/ECB/CTR mode */
+/* Initialize transform information of CBC/ECB/CTR/OFB/CFB mode */
static void mtk_aes_info_init(struct mtk_cryp *cryp, struct mtk_aes_rec *aes,
size_t len)
{
@@ -441,6 +445,12 @@ static void mtk_aes_info_init(struct mtk_cryp *cryp, struct mtk_aes_rec *aes,
case AES_FLAGS_CTR:
info->tfm[1] = AES_TFM_CTR_LOAD;
goto ctr;
+ case AES_FLAGS_OFB:
+ info->tfm[1] = AES_TFM_OFB;
+ break;
+ case AES_FLAGS_CFB128:
+ info->tfm[1] = AES_TFM_CFB128;
+ break;
default:
/* Should not happen... */
@@ -699,6 +709,26 @@ static int mtk_aes_ctr_decrypt(struct ablkcipher_request *req)
return mtk_aes_crypt(req, AES_FLAGS_CTR);
}
+static int mtk_aes_ofb_encrypt(struct ablkcipher_request *req)
+{
+ return mtk_aes_crypt(req, AES_FLAGS_ENCRYPT | AES_FLAGS_OFB);
+}
+
+static int mtk_aes_ofb_decrypt(struct ablkcipher_request *req)
+{
+ return mtk_aes_crypt(req, AES_FLAGS_OFB);
+}
+
+static int mtk_aes_cfb_encrypt(struct ablkcipher_request *req)
+{
+ return mtk_aes_crypt(req, AES_FLAGS_ENCRYPT | AES_FLAGS_CFB128);
+}
+
+static int mtk_aes_cfb_decrypt(struct ablkcipher_request *req)
+{
+ return mtk_aes_crypt(req, AES_FLAGS_CFB128);
+}
+
static int mtk_aes_cra_init(struct crypto_tfm *tfm)
{
struct mtk_aes_ctx *ctx = crypto_tfm_ctx(tfm);
@@ -794,6 +824,48 @@ static int mtk_aes_ctr_cra_init(struct crypto_tfm *tfm)
.decrypt = mtk_aes_ctr_decrypt,
}
},
+{
+ .cra_name = "ofb(aes)",
+ .cra_driver_name = "ofb-aes-mtk",
+ .cra_priority = 400,
+ .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER |
+ CRYPTO_ALG_ASYNC,
+ .cra_init = mtk_aes_cra_init,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct mtk_aes_ctx),
+ .cra_alignmask = 0xf,
+ .cra_type = &crypto_ablkcipher_type,
+ .cra_module = THIS_MODULE,
+ .cra_u.ablkcipher = {
+ .min_keysize = AES_MIN_KEY_SIZE,
+ .max_keysize = AES_MAX_KEY_SIZE,
+ .ivsize = AES_BLOCK_SIZE,
+ .setkey = mtk_aes_setkey,
+ .encrypt = mtk_aes_ofb_encrypt,
+ .decrypt = mtk_aes_ofb_decrypt,
+ }
+},
+{
+ .cra_name = "cfb(aes)",
+ .cra_driver_name = "cfb-aes-mtk",
+ .cra_priority = 400,
+ .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER |
+ CRYPTO_ALG_ASYNC,
+ .cra_init = mtk_aes_cra_init,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct mtk_aes_ctx),
+ .cra_alignmask = 0xf,
+ .cra_type = &crypto_ablkcipher_type,
+ .cra_module = THIS_MODULE,
+ .cra_u.ablkcipher = {
+ .min_keysize = AES_MIN_KEY_SIZE,
+ .max_keysize = AES_MAX_KEY_SIZE,
+ .ivsize = AES_BLOCK_SIZE,
+ .setkey = mtk_aes_setkey,
+ .encrypt = mtk_aes_cfb_encrypt,
+ .decrypt = mtk_aes_cfb_decrypt,
+ }
+},
};
static inline struct mtk_aes_gcm_ctx *
--
1.9.1
next prev parent reply other threads:[~2017-02-20 9:27 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-20 9:26 [PATCH 0/9] improve performances on mediatek crypto driver Ryder Lee
2017-02-20 9:26 ` [PATCH 1/9] crypto: mediatek - rework interrupt handler Ryder Lee
2017-02-20 9:26 ` [PATCH 2/9] crypto: mediatek - add MTK_* prefix and correct annotations Ryder Lee
2017-02-20 9:26 ` [PATCH 3/9] crypto: mediatek - make mtk_sha_xmit() more generic Ryder Lee
2017-02-20 9:26 ` [PATCH 4/9] crypto: mediatek - simplify descriptor ring management Ryder Lee
2017-02-20 9:26 ` [PATCH 5/9] crypto: mediatek - add queue_task tasklet Ryder Lee
2017-02-20 9:26 ` [PATCH 6/9] crypto: mediatek - fix error handling in mtk_aes_complete() Ryder Lee
2017-02-20 9:27 ` [PATCH 7/9] crypto: mediatek - add mtk_aes_gcm_tag_verify() Ryder Lee
2017-02-20 9:27 ` [PATCH 8/9] crypto: mediatek - make hardware operation flow more efficient Ryder Lee
2017-02-20 9:27 ` Ryder Lee [this message]
[not found] ` <1487582822-30393-10-git-send-email-ryder.lee-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
2017-03-08 10:48 ` [PATCH 9/9] crypto: mediatek - add support to OFB mode and CFB128 mode Herbert Xu
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