crypto/cnxk: add AEAD operation in session

Add support for AEAD operations 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>
Acked-by: Akhil Goyal <gakhil@marvell.com>

diff --git a/drivers/crypto/cnxk/cnxk_cryptodev_ops.c b/drivers/crypto/cnxk/cnxk_cryptodev_ops.c
index f2319df..acb9f1f 100644 (file)
--- a/drivers/crypto/cnxk/cnxk_cryptodev_ops.c
+++ b/drivers/crypto/cnxk/cnxk_cryptodev_ops.c
@@ -466,6 +466,9 @@ sym_session_configure(struct roc_cpt *roc_cpt, int driver_id,
                else
                        ret = fill_sess_auth(xform, sess_priv);
                break;
+       case CNXK_CPT_AEAD:
+               ret = fill_sess_aead(xform, sess_priv);
+               break;
        default:
                ret = -1;
        }

diff --git a/drivers/crypto/cnxk/cnxk_se.h b/drivers/crypto/cnxk/cnxk_se.h
index 6e4b032..57bbd70 100644 (file)
--- a/drivers/crypto/cnxk/cnxk_se.h
+++ b/drivers/crypto/cnxk/cnxk_se.h
@@ -69,6 +69,70 @@ cpt_mac_len_verify(struct rte_crypto_auth_xform *auth)
        return ret;
 }
 
+static __rte_always_inline int
+fill_sess_aead(struct rte_crypto_sym_xform *xform, struct cnxk_se_sess *sess)
+{
+       struct rte_crypto_aead_xform *aead_form;
+       roc_se_cipher_type enc_type = 0; /* NULL Cipher type */
+       roc_se_auth_type auth_type = 0;  /* NULL Auth type */
+       uint32_t cipher_key_len = 0;
+       uint8_t aes_gcm = 0;
+       aead_form = &xform->aead;
+
+       if (aead_form->op == RTE_CRYPTO_AEAD_OP_ENCRYPT) {
+               sess->cpt_op |= ROC_SE_OP_CIPHER_ENCRYPT;
+               sess->cpt_op |= ROC_SE_OP_AUTH_GENERATE;
+       } else if (aead_form->op == RTE_CRYPTO_AEAD_OP_DECRYPT) {
+               sess->cpt_op |= ROC_SE_OP_CIPHER_DECRYPT;
+               sess->cpt_op |= ROC_SE_OP_AUTH_VERIFY;
+       } else {
+               plt_dp_err("Unknown aead operation\n");
+               return -1;
+       }
+       switch (aead_form->algo) {
+       case RTE_CRYPTO_AEAD_AES_GCM:
+               enc_type = ROC_SE_AES_GCM;
+               cipher_key_len = 16;
+               aes_gcm = 1;
+               break;
+       case RTE_CRYPTO_AEAD_AES_CCM:
+               plt_dp_err("Crypto: Unsupported cipher algo %u",
+                          aead_form->algo);
+               return -1;
+       case RTE_CRYPTO_AEAD_CHACHA20_POLY1305:
+               enc_type = ROC_SE_CHACHA20;
+               auth_type = ROC_SE_POLY1305;
+               cipher_key_len = 32;
+               sess->chacha_poly = 1;
+               break;
+       default:
+               plt_dp_err("Crypto: Undefined cipher algo %u specified",
+                          aead_form->algo);
+               return -1;
+       }
+       if (aead_form->key.length < cipher_key_len) {
+               plt_dp_err("Invalid cipher params keylen %u",
+                          aead_form->key.length);
+               return -1;
+       }
+       sess->zsk_flag = 0;
+       sess->aes_gcm = aes_gcm;
+       sess->mac_len = aead_form->digest_length;
+       sess->iv_offset = aead_form->iv.offset;
+       sess->iv_length = aead_form->iv.length;
+       sess->aad_length = aead_form->aad_length;
+
+       if (unlikely(roc_se_ciph_key_set(&sess->roc_se_ctx, enc_type,
+                                        aead_form->key.data,
+                                        aead_form->key.length, NULL)))
+               return -1;
+
+       if (unlikely(roc_se_auth_key_set(&sess->roc_se_ctx, auth_type, NULL, 0,
+                                        aead_form->digest_length)))
+               return -1;
+
+       return 0;
+}
 
 static __rte_always_inline int
 fill_sess_cipher(struct rte_crypto_sym_xform *xform, struct cnxk_se_sess *sess)