[dpdk-dev] [PATCH v2 02/10] 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.c |  2 ++
 lib/librte_vhost/vhost_user.h | 31 ++++++++++++++++++++++++++++++-
 2 files changed, 32 insertions(+), 1 deletion(-)

diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c
index 6a90d2a96..9d736a24f 100644
--- a/lib/librte_vhost/vhost_user.c
+++ b/lib/librte_vhost/vhost_user.c
@@ -50,6 +50,8 @@ static const char *vhost_message_str[VHOST_USER_MAX] = {
 	[VHOST_USER_NET_SET_MTU]  = "VHOST_USER_NET_SET_MTU",
 	[VHOST_USER_SET_SLAVE_REQ_FD]  = "VHOST_USER_SET_SLAVE_REQ_FD",
 	[VHOST_USER_IOTLB_MSG]  = "VHOST_USER_IOTLB_MSG",
+	[VHOST_USER_CRYPTO_CREATE_SESS] = "VHOST_USER_CRYPTO_CREATE_SESS",
+	[VHOST_USER_CRYPTO_CLOSE_SESS] = "VHOST_USER_CRYPTO_CLOSE_SESS",
 };
 
 static uint64_t
diff --git a/lib/librte_vhost/vhost_user.h b/lib/librte_vhost/vhost_user.h
index 354615c8b..99febb7fa 100644
--- a/lib/librte_vhost/vhost_user.h
+++ b/lib/librte_vhost/vhost_user.h
@@ -20,13 +20,15 @@
 #define VHOST_USER_PROTOCOL_F_REPLY_ACK	3
 #define VHOST_USER_PROTOCOL_F_NET_MTU 4
 #define VHOST_USER_PROTOCOL_F_SLAVE_REQ 5
+#define VHOST_USER_PROTOCOL_F_CRYPTO_SESSION 7
 
 #define VHOST_USER_PROTOCOL_FEATURES	((1ULL << VHOST_USER_PROTOCOL_F_MQ) | \
 					 (1ULL << VHOST_USER_PROTOCOL_F_LOG_SHMFD) |\
 					 (1ULL << VHOST_USER_PROTOCOL_F_RARP) | \
 					 (1ULL << VHOST_USER_PROTOCOL_F_REPLY_ACK) | \
 					 (1ULL << VHOST_USER_PROTOCOL_F_NET_MTU) | \
-					 (1ULL << VHOST_USER_PROTOCOL_F_SLAVE_REQ))
+					 (1ULL << VHOST_USER_PROTOCOL_F_SLAVE_REQ) | \
+					 (1ULL << VHOST_USER_PROTOCOL_F_CRYPTO_SESSION))
 
 typedef enum VhostUserRequest {
 	VHOST_USER_NONE = 0,
@@ -52,6 +54,8 @@ typedef enum VhostUserRequest {
 	VHOST_USER_NET_SET_MTU = 20,
 	VHOST_USER_SET_SLAVE_REQ_FD = 21,
 	VHOST_USER_IOTLB_MSG = 22,
+	VHOST_USER_CRYPTO_CREATE_SESS = 26,
+	VHOST_USER_CRYPTO_CLOSE_SESS = 27,
 	VHOST_USER_MAX
 } VhostUserRequest;
 
@@ -79,6 +83,30 @@ 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;
@@ -99,6 +127,7 @@ 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;
-- 
2.13.6