crypto: hisilicon - Add aead support on SEC2

authenc(hmac(sha1),cbc(aes)), authenc(hmac(sha256),cbc(aes)), and
authenc(hmac(sha512),cbc(aes)) support are added for SEC v2.

Signed-off-by: Zaibo Xu <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>

Author: zaiboxu

drivers/crypto/hisilicon/Kconfig

@@ -20,12 +20,18 @@ config CRYPTO_DEV_HISI_SEC2
 	select CRYPTO_ALGAPI
 	select CRYPTO_LIB_DES
 	select CRYPTO_DEV_HISI_QM
+	select CRYPTO_AEAD
+	select CRYPTO_AUTHENC
+	select CRYPTO_HMAC
+	select CRYPTO_SHA1
+	select CRYPTO_SHA256
+	select CRYPTO_SHA512
 	depends on PCI && PCI_MSI
 	depends on ARM64 || (COMPILE_TEST && 64BIT)
 	help
 	  Support for HiSilicon SEC Engine of version 2 in crypto subsystem.
 	  It provides AES, SM4, and 3DES algorithms with ECB
-	  CBC, and XTS cipher mode.
+	  CBC, and XTS cipher mode, and AEAD algorithms.
 
 	  To compile this as a module, choose M here: the module
           will be called hisi_sec2.

drivers/crypto/hisilicon/sec2/sec.h

@@ -13,6 +13,8 @@
 struct sec_alg_res {
 	u8 *c_ivin;
 	dma_addr_t c_ivin_dma;
+	u8 *out_mac;
+	dma_addr_t out_mac_dma;
 };
 
 /* Cipher request of SEC private */
@@ -26,14 +28,21 @@ struct sec_cipher_req {
 	bool encrypt;
 };
 
+struct sec_aead_req {
+	u8 *out_mac;
+	dma_addr_t out_mac_dma;
+	struct aead_request *aead_req;
+};
+
 /* SEC request of Crypto */
 struct sec_req {
 	struct sec_sqe sec_sqe;
 	struct sec_ctx *ctx;
 	struct sec_qp_ctx *qp_ctx;
 
-	/* Cipher supported only at present */
 	struct sec_cipher_req c_req;
+	struct sec_aead_req aead_req;
+
 	int err_type;
 	int req_id;
 
@@ -60,6 +69,16 @@ struct sec_req_op {
 	int (*process)(struct sec_ctx *ctx, struct sec_req *req);
 };
 
+/* SEC auth context */
+struct sec_auth_ctx {
+	dma_addr_t a_key_dma;
+	u8 *a_key;
+	u8 a_key_len;
+	u8 mac_len;
+	u8 a_alg;
+	struct crypto_shash *hash_tfm;
+};
+
 /* SEC cipher context which cipher's relatives */
 struct sec_cipher_ctx {
 	u8 *c_key;
@@ -85,6 +104,11 @@ struct sec_qp_ctx {
 	atomic_t pending_reqs;
 };
 
+enum sec_alg_type {
+	SEC_SKCIPHER,
+	SEC_AEAD
+};
+
 /* SEC Crypto TFM context which defines queue and cipher .etc relatives */
 struct sec_ctx {
 	struct sec_qp_ctx *qp_ctx;
@@ -102,7 +126,10 @@ struct sec_ctx {
 
 	 /* Currrent cyclic index to select a queue for decipher */
 	atomic_t dec_qcyclic;
+
+	enum sec_alg_type alg_type;
 	struct sec_cipher_ctx c_ctx;
+	struct sec_auth_ctx a_ctx;
 };
 
 enum sec_endian {