+
+ /* Check key length and choose key expansion function for AES */
+ switch (xform->aead.key.length) {
+ case AES_128_BYTES:
+ sess->cipher.key_length_in_bytes = AES_128_BYTES;
+ keyexp.aes_keyexp_fn = mb_ops->aux.keyexp.aes128;
+ break;
+ default:
+ AESNI_MB_LOG(ERR, "Invalid cipher key length");
+ return -EINVAL;
+ }
+
+ /* Expanded cipher keys */
+ (*keyexp.aes_keyexp_fn)(xform->aead.key.data,
+ sess->cipher.expanded_aes_keys.encode,
+ sess->cipher.expanded_aes_keys.decode);
+ break;
+
+ case RTE_CRYPTO_AEAD_AES_GCM:
+ sess->cipher.mode = GCM;
+ sess->auth.algo = AES_GMAC;
+
+ switch (xform->aead.key.length) {
+ case AES_128_BYTES:
+ sess->cipher.key_length_in_bytes = AES_128_BYTES;
+ keyexp.aes_gcm_keyexp_fn =
+ mb_ops->aux.keyexp.aes_gcm_128;
+ break;
+ case AES_192_BYTES:
+ sess->cipher.key_length_in_bytes = AES_192_BYTES;
+ keyexp.aes_gcm_keyexp_fn =
+ mb_ops->aux.keyexp.aes_gcm_192;
+ break;
+ case AES_256_BYTES:
+ sess->cipher.key_length_in_bytes = AES_256_BYTES;
+ keyexp.aes_gcm_keyexp_fn =
+ mb_ops->aux.keyexp.aes_gcm_256;
+ break;
+ default:
+ AESNI_MB_LOG(ERR, "Invalid cipher key length");
+ return -EINVAL;
+ }
+
+ (keyexp.aes_gcm_keyexp_fn)(xform->aead.key.data,
+ &sess->cipher.gcm_key);