[dpdk-dev] [PATCH] drivers/net/bonding: fix bug for lacp negotiation failed

[luyicai <luyicai@huawei.com>]

When two host is connected directly without any devices like switch,
and also enable dedicated tx/rx queues on bonding devices slaves,
rx_machine_update would recieving partner lacp negotiation packets,
which partner's port mac filled with zeros. So in this situation,
it would never go rx_machine branch with correct mac!
Thus bond mode 4 will negotiation failed.

Signed-off-by: Lu Yicai <luyicai@huawei.com>
---
 drivers/net/bonding/rte_eth_bond_8023ad.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/bonding/rte_eth_bond_8023ad.c b/drivers/net/bonding/rte_eth_bond_8023ad.c
index b77a37ddb..2002ec04a 100644
--- a/drivers/net/bonding/rte_eth_bond_8023ad.c
+++ b/drivers/net/bonding/rte_eth_bond_8023ad.c
@@ -798,7 +798,8 @@ rx_machine_update(struct bond_dev_private *internals, uint16_t slave_id,
                RTE_ASSERT(lacp->lacpdu.subtype == SLOW_SUBTYPE_LACP);

                partner = &lacp->lacpdu.partner;
-               if (rte_is_same_ether_addr(&partner->port_params.system,
+               if (rte_is_zero_ether_addr(&partner->port_params.system) ||
+                       rte_is_same_ether_addr(&partner->port_params.system,
                        &internals->mode4.mac_addr)) {
                        /* This LACP frame is sending to the bonding port
                         * so pass it to rx_machine.
--
2.19.1