[dpdk-dev] [PATCH v2 2/2] examples/ipsec-secgw: attach session-qp

[<akhil.goyal@nxp.com>]

From: Akhil Goyal <akhil.goyal@nxp.com>

adding support for attaching session to queue pairs.
This is required as underlying crypto driver may only
support limited number of sessions per queue pair
if max_nb_sessions_per_qp > 0, session should be
attached to a particular qp.

Signed-off-by: Akhil Goyal <akhil.goyal@nxp.com>
---
 examples/ipsec-secgw/ipsec.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/examples/ipsec-secgw/ipsec.c b/examples/ipsec-secgw/ipsec.c
index 144f0aa..b35b30f 100644
--- a/examples/ipsec-secgw/ipsec.c
+++ b/examples/ipsec-secgw/ipsec.c
@@ -47,6 +47,7 @@
 static inline int
 create_session(struct ipsec_ctx *ipsec_ctx __rte_unused, struct ipsec_sa *sa)
 {
+	struct rte_cryptodev_info cdev_info;
 	unsigned long cdev_id_qp = 0;
 	int32_t ret;
 	struct cdev_key key = { 0 };
@@ -73,6 +74,17 @@ create_session(struct ipsec_ctx *ipsec_ctx __rte_unused, struct ipsec_sa *sa)
 	sa->crypto_session = rte_cryptodev_sym_session_create(
 			ipsec_ctx->tbl[cdev_id_qp].id, sa->xforms);
 
+	rte_cryptodev_info_get(ipsec_ctx->tbl[cdev_id_qp].id, &cdev_info);
+	if (cdev_info.sym.max_nb_sessions_per_qp > 0) {
+		ret = rte_cryptodev_queue_pair_attach_sym_session(
+				ipsec_ctx->tbl[cdev_id_qp].qp,
+				sa->crypto_session);
+		if (ret < 0) {
+			RTE_LOG(ERR, IPSEC, "Session cannot be attached"
+				" to qp %u ", ipsec_ctx->tbl[cdev_id_qp].qp);
+			return -1;
+		}
+	}
 	sa->cdev_id_qp = cdev_id_qp;
 
 	return 0;
-- 
2.9.3