[dpdk-dev] [PATCH] examples/ipsec-secgw: fix wrong session size

[Anoob Joseph <anoob.joseph@caviumnetworks.com>]

Crypto devices, which support lookaside protocol, exposes security
session size in addition to the crypto private symmetric session data
size. For applications using the security capabilities, both these
sizes need to be considered.

Fixes: ec17993a145a ("examples/ipsec-secgw: support security offload")

Signed-off-by: Anoob Joseph <anoob.joseph@caviumnetworks.com>
Signed-off-by: Archana Muniganti <muniganti.archana@caviumnetworks.com>
---
 examples/ipsec-secgw/ipsec-secgw.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/examples/ipsec-secgw/ipsec-secgw.c b/examples/ipsec-secgw/ipsec-secgw.c
index b45b87b..47ac26a 100644
--- a/examples/ipsec-secgw/ipsec-secgw.c
+++ b/examples/ipsec-secgw/ipsec-secgw.c
@@ -1392,9 +1392,27 @@ cryptodevs_init(void)
 
 	uint32_t max_sess_sz = 0, sess_sz;
 	for (cdev_id = 0; cdev_id < rte_cryptodev_count(); cdev_id++) {
+		void *sec_ctx;
+
+		/* Get crypto priv session size */
 		sess_sz = rte_cryptodev_sym_get_private_session_size(cdev_id);
 		if (sess_sz > max_sess_sz)
 			max_sess_sz = sess_sz;
+
+		/*
+		 * If crypto device is security capable, need to check the
+		 * size of security session as well.
+		 */
+
+		/* Get security context of the crypto device */
+		sec_ctx = rte_cryptodev_get_sec_ctx(cdev_id);
+		if (sec_ctx == NULL)
+			continue;
+
+		/* Get size of security session */
+		sess_sz = rte_security_session_get_size(sec_ctx);
+		if (sess_sz > max_sess_sz)
+			max_sess_sz = sess_sz;
 	}
 	RTE_ETH_FOREACH_DEV(port_id) {
 		void *sec_ctx;
-- 
2.7.4