[PATCH 03/12] lib/librte_vhost: add virtio crypto user message structure

[Fan Zhang <roy.fan.zhang@intel.com>]

This patch adds virtio-crypto spec user message structure to
vhost_user.

Signed-off-by: Fan Zhang <roy.fan.zhang@intel.com>
---
 lib/librte_vhost/vhost_user.h | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/lib/librte_vhost/vhost_user.h b/lib/librte_vhost/vhost_user.h
index 990b40a..793cdc2 100644
--- a/lib/librte_vhost/vhost_user.h
+++ b/lib/librte_vhost/vhost_user.h
@@ -108,6 +108,30 @@ typedef struct VhostUserLog {
 	uint64_t mmap_offset;
 } VhostUserLog;
 
+/* Comply with Cryptodev-Linux */
+#define VHOST_USER_CRYPTO_MAX_HMAC_KEY_LENGTH	512
+#define VHOST_USER_CRYPTO_MAX_CIPHER_KEY_LENGTH	64
+
+/* Same structure as vhost-user backend session info */
+typedef struct VhostUserCryptoSessionParam {
+	int64_t session_id;
+	uint32_t op_code;
+	uint32_t cipher_algo;
+	uint32_t cipher_key_len;
+	uint32_t hash_algo;
+	uint32_t digest_len;
+	uint32_t auth_key_len;
+	uint32_t aad_len;
+	uint8_t op_type;
+	uint8_t dir;
+	uint8_t hash_mode;
+	uint8_t chaining_dir;
+	uint8_t *ciphe_key;
+	uint8_t *auth_key;
+	uint8_t cipher_key_buf[VHOST_USER_CRYPTO_MAX_CIPHER_KEY_LENGTH];
+	uint8_t auth_key_buf[VHOST_USER_CRYPTO_MAX_HMAC_KEY_LENGTH];
+} VhostUserCryptoSessionParam;
+
 typedef struct VhostUserMsg {
 	union {
 		VhostUserRequest master;
@@ -128,6 +152,7 @@ typedef struct VhostUserMsg {
 		VhostUserMemory memory;
 		VhostUserLog    log;
 		struct vhost_iotlb_msg iotlb;
+		VhostUserCryptoSessionParam crypto_session;
 	} payload;
 	int fds[VHOST_MEMORY_MAX_NREGIONS];
 } __attribute((packed)) VhostUserMsg;
-- 
2.9.5