[PATCH] examples/l2fwd-macsec: enable extended packet number

[Akhil Goyal]

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 <gak...@marvell.com>
---
 examples/l2fwd-macsec/main.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/examples/l2fwd-macsec/main.c b/examples/l2fwd-macsec/main.c
index 294ee113e3..b262d3ba0b 100644
--- a/examples/l2fwd-macsec/main.c
+++ b/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);
-- 
2.25.1