[dpdk-dev] [PATCH v4 06/12] vhost/crypto: use separate session mempools

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

This patch uses the two session mempool approach to vhost crypto.
One mempool is for session header objects, and the other is for
session private data.

Signed-off-by: Fan Zhang <roy.fan.zhang@intel.com>
Acked-by: Fiona Trahe <fiona.trahe@intel.com>
---
 lib/librte_vhost/rte_vhost_crypto.h | 9 ++++++---
 lib/librte_vhost/vhost_crypto.c     | 8 ++++++--
 2 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/lib/librte_vhost/rte_vhost_crypto.h b/lib/librte_vhost/rte_vhost_crypto.h
index f9fbc0548..d08e0ffab 100644
--- a/lib/librte_vhost/rte_vhost_crypto.h
+++ b/lib/librte_vhost/rte_vhost_crypto.h
@@ -26,8 +26,9 @@ enum rte_vhost_crypto_zero_copy {
  *  The identifier of DPDK Cryptodev, the same cryptodev_id can be assigned to
  *  multiple Vhost-crypto devices.
  * @param sess_pool
- *  The pointer to the created cryptodev session pool with the private data size
- *  matches the target DPDK Cryptodev.
+ *  The pointer to the created cryptodev session pool.
+ * @param sess_priv_pool
+ *  The pointer to the created cryptodev session private data mempool.
  * @param socket_id
  *  NUMA Socket ID to allocate resources on. *
  * @return
@@ -36,7 +37,9 @@ enum rte_vhost_crypto_zero_copy {
  */
 int __rte_experimental
 rte_vhost_crypto_create(int vid, uint8_t cryptodev_id,
-		struct rte_mempool *sess_pool, int socket_id);
+		struct rte_mempool *sess_pool,
+		struct rte_mempool *sess_priv_pool,
+		int socket_id);
 
 /**
  *  Free the Vhost-crypto instance
diff --git a/lib/librte_vhost/vhost_crypto.c b/lib/librte_vhost/vhost_crypto.c
index dd01afc08..598196fb7 100644
--- a/lib/librte_vhost/vhost_crypto.c
+++ b/lib/librte_vhost/vhost_crypto.c
@@ -198,6 +198,7 @@ struct vhost_crypto {
 	struct rte_hash *session_map;
 	struct rte_mempool *mbuf_pool;
 	struct rte_mempool *sess_pool;
+	struct rte_mempool *sess_priv_pool;
 	struct rte_mempool *wb_pool;
 
 	/** DPDK cryptodev ID */
@@ -369,7 +370,7 @@ vhost_crypto_create_sess(struct vhost_crypto *vcrypto,
 	}
 
 	if (rte_cryptodev_sym_session_init(vcrypto->cid, session, &xform1,
-			vcrypto->sess_pool) < 0) {
+			vcrypto->sess_priv_pool) < 0) {
 		VC_LOG_ERR("Failed to initialize session");
 		sess_param->session_id = -VIRTIO_CRYPTO_ERR;
 		return;
@@ -1293,7 +1294,9 @@ vhost_crypto_complete_one_vm_requests(struct rte_crypto_op **ops,
 
 int __rte_experimental
 rte_vhost_crypto_create(int vid, uint8_t cryptodev_id,
-		struct rte_mempool *sess_pool, int socket_id)
+		struct rte_mempool *sess_pool,
+		struct rte_mempool *sess_priv_pool,
+		int socket_id)
 {
 	struct virtio_net *dev = get_device(vid);
 	struct rte_hash_parameters params = {0};
@@ -1321,6 +1324,7 @@ rte_vhost_crypto_create(int vid, uint8_t cryptodev_id,
 	}
 
 	vcrypto->sess_pool = sess_pool;
+	vcrypto->sess_priv_pool = sess_priv_pool;
 	vcrypto->cid = cryptodev_id;
 	vcrypto->cache_session_id = UINT64_MAX;
 	vcrypto->last_session_id = 1;
-- 
2.13.6