examples/l2fwd-macsec: enable extended packet number

Enabled the extended packet number(XPN) case so that
traffic runs for longer duration without raising interrupt
for PN threshold as the application currently does not handle
rekeying.

Signed-off-by: Akhil Goyal <[email protected]>

Author: Akhil Goyal

examples/l2fwd-macsec/main.c

@@ -446,7 +446,8 @@ fill_macsec_sc_conf(uint16_t portid, struct rte_security_macsec_sc *sc_conf)
 		}
 		sc_conf->sc_tx.active = 1;
 		sc_conf->sc_tx.sci = mcs_port_params[portid].sci;
-		if (mcs_port_params[portid].xpn > 0)
+		if (mcs_port_params[portid].alg == RTE_SECURITY_MACSEC_ALG_GCM_XPN_128 ||
+			       mcs_port_params[portid].alg == RTE_SECURITY_MACSEC_ALG_GCM_XPN_256)
 			sc_conf->sc_tx.is_xpn = 1;
 	} else {
 		for (i = 0; i < RTE_SECURITY_MACSEC_NUM_AN; i++) {
@@ -456,7 +457,8 @@ fill_macsec_sc_conf(uint16_t portid, struct rte_security_macsec_sc *sc_conf)
 			}
 		}
 		sc_conf->sc_rx.active = 1;
-		if (mcs_port_params[portid].xpn > 0)
+		if (mcs_port_params[portid].alg == RTE_SECURITY_MACSEC_ALG_GCM_XPN_128 ||
+			       mcs_port_params[portid].alg == RTE_SECURITY_MACSEC_ALG_GCM_XPN_256)
 			sc_conf->sc_rx.is_xpn = 1;
 	}
 }
@@ -1008,7 +1010,7 @@ l2fwd_macsec_default_options(struct l2fwd_macsec_options *options)
 		if ((options->rx_portmask & (1 << portid)) != 0)
 			mcs_port_params[portid].dir = RTE_SECURITY_MACSEC_DIR_RX;
 
-		mcs_port_params[portid].alg = RTE_SECURITY_MACSEC_ALG_GCM_128;
+		mcs_port_params[portid].alg = RTE_SECURITY_MACSEC_ALG_GCM_XPN_128;
 		memcpy(mcs_port_params[portid].sa_key.data, key, 16);
 		mcs_port_params[portid].sa_key.len = 16;
 		memcpy(mcs_port_params[portid].salt, salt, MCS_SALT_LEN);