[dpdk-dev] [PATCH v2 08/20] crypto/cnxk: add cipher operation in session

[Anoob Joseph <anoobj@marvell.com>]

Add support for cipher operation in session.

Signed-off-by: Ankur Dwivedi <adwivedi@marvell.com>
Signed-off-by: Anoob Joseph <anoobj@marvell.com>
Signed-off-by: Archana Muniganti <marchana@marvell.com>
Signed-off-by: Tejasree Kondoj <ktejasree@marvell.com>
---
 drivers/crypto/cnxk/cnxk_cryptodev_ops.c |   3 +
 drivers/crypto/cnxk/cnxk_se.h            | 106 +++++++++++++++++++++++++++++++
 2 files changed, 109 insertions(+)

diff --git a/drivers/crypto/cnxk/cnxk_cryptodev_ops.c b/drivers/crypto/cnxk/cnxk_cryptodev_ops.c
index 8ef0e6f..b6d3076 100644
--- a/drivers/crypto/cnxk/cnxk_cryptodev_ops.c
+++ b/drivers/crypto/cnxk/cnxk_cryptodev_ops.c
@@ -457,6 +457,9 @@ sym_session_configure(struct roc_cpt *roc_cpt, int driver_id,
 	sess_priv = priv;
 
 	switch (ret) {
+	case CNXK_CPT_CIPHER:
+		ret = fill_sess_cipher(xform, sess_priv);
+		break;
 	default:
 		ret = -1;
 	}
diff --git a/drivers/crypto/cnxk/cnxk_se.h b/drivers/crypto/cnxk/cnxk_se.h
index 9cccab0..b5a16c4 100644
--- a/drivers/crypto/cnxk/cnxk_se.h
+++ b/drivers/crypto/cnxk/cnxk_se.h
@@ -28,4 +28,110 @@ struct cnxk_se_sess {
 	struct roc_se_ctx roc_se_ctx;
 } __rte_cache_aligned;
 
+static __rte_always_inline int
+fill_sess_cipher(struct rte_crypto_sym_xform *xform, struct cnxk_se_sess *sess)
+{
+	struct rte_crypto_cipher_xform *c_form;
+	roc_se_cipher_type enc_type = 0; /* NULL Cipher type */
+	uint32_t cipher_key_len = 0;
+	uint8_t zsk_flag = 0, aes_ctr = 0, is_null = 0;
+
+	c_form = &xform->cipher;
+
+	if (c_form->op == RTE_CRYPTO_CIPHER_OP_ENCRYPT)
+		sess->cpt_op |= ROC_SE_OP_CIPHER_ENCRYPT;
+	else if (c_form->op == RTE_CRYPTO_CIPHER_OP_DECRYPT) {
+		sess->cpt_op |= ROC_SE_OP_CIPHER_DECRYPT;
+		if (xform->next != NULL &&
+		    xform->next->type == RTE_CRYPTO_SYM_XFORM_AUTH) {
+			/* Perform decryption followed by auth verify */
+			sess->roc_se_ctx.template_w4.s.opcode_minor =
+				ROC_SE_FC_MINOR_OP_HMAC_FIRST;
+		}
+	} else {
+		plt_dp_err("Unknown cipher operation\n");
+		return -1;
+	}
+
+	switch (c_form->algo) {
+	case RTE_CRYPTO_CIPHER_AES_CBC:
+		enc_type = ROC_SE_AES_CBC;
+		cipher_key_len = 16;
+		break;
+	case RTE_CRYPTO_CIPHER_3DES_CBC:
+		enc_type = ROC_SE_DES3_CBC;
+		cipher_key_len = 24;
+		break;
+	case RTE_CRYPTO_CIPHER_DES_CBC:
+		/* DES is implemented using 3DES in hardware */
+		enc_type = ROC_SE_DES3_CBC;
+		cipher_key_len = 8;
+		break;
+	case RTE_CRYPTO_CIPHER_AES_CTR:
+		enc_type = ROC_SE_AES_CTR;
+		cipher_key_len = 16;
+		aes_ctr = 1;
+		break;
+	case RTE_CRYPTO_CIPHER_NULL:
+		enc_type = 0;
+		is_null = 1;
+		break;
+	case RTE_CRYPTO_CIPHER_KASUMI_F8:
+		enc_type = ROC_SE_KASUMI_F8_ECB;
+		cipher_key_len = 16;
+		zsk_flag = ROC_SE_K_F8;
+		break;
+	case RTE_CRYPTO_CIPHER_SNOW3G_UEA2:
+		enc_type = ROC_SE_SNOW3G_UEA2;
+		cipher_key_len = 16;
+		zsk_flag = ROC_SE_ZS_EA;
+		break;
+	case RTE_CRYPTO_CIPHER_ZUC_EEA3:
+		enc_type = ROC_SE_ZUC_EEA3;
+		cipher_key_len = 16;
+		zsk_flag = ROC_SE_ZS_EA;
+		break;
+	case RTE_CRYPTO_CIPHER_AES_XTS:
+		enc_type = ROC_SE_AES_XTS;
+		cipher_key_len = 16;
+		break;
+	case RTE_CRYPTO_CIPHER_3DES_ECB:
+		enc_type = ROC_SE_DES3_ECB;
+		cipher_key_len = 24;
+		break;
+	case RTE_CRYPTO_CIPHER_AES_ECB:
+		enc_type = ROC_SE_AES_ECB;
+		cipher_key_len = 16;
+		break;
+	case RTE_CRYPTO_CIPHER_3DES_CTR:
+	case RTE_CRYPTO_CIPHER_AES_F8:
+	case RTE_CRYPTO_CIPHER_ARC4:
+		plt_dp_err("Crypto: Unsupported cipher algo %u", c_form->algo);
+		return -1;
+	default:
+		plt_dp_err("Crypto: Undefined cipher algo %u specified",
+			   c_form->algo);
+		return -1;
+	}
+
+	if (c_form->key.length < cipher_key_len) {
+		plt_dp_err("Invalid cipher params keylen %u",
+			   c_form->key.length);
+		return -1;
+	}
+
+	sess->zsk_flag = zsk_flag;
+	sess->aes_gcm = 0;
+	sess->aes_ctr = aes_ctr;
+	sess->iv_offset = c_form->iv.offset;
+	sess->iv_length = c_form->iv.length;
+	sess->is_null = is_null;
+
+	if (unlikely(roc_se_ciph_key_set(&sess->roc_se_ctx, enc_type,
+					 c_form->key.data, c_form->key.length,
+					 NULL)))
+		return -1;
+
+	return 0;
+}
 #endif /*_CNXK_SE_H_ */
-- 
2.7.4