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bonding: Gratuitous ARP gets dropped when first slave added 

When the first slave is added (such as during bootup) the first
gratuitous ARP gets dropped. We don't see this drop during a failover.
The packet gets dropped in qdisc (noop_enqueue).

The fix is to delay the sending of gratuitous ARPs till the bond dev's
carrier is present.

It can also be worked around by setting num_grat_arp to more than 1.

Signed-off-by: Venkat Venkatsubra <venkat.x.venkatsubra@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Venkat Venkatsubra 2015-08-11 07:57:23 -07:00 committed by David S. Miller
parent 211c504a44
commit b02e3e948d
1 changed files with 1 additions and 0 deletions
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drivers/net/bonding/bond_main.c
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@ -786,6 +786,7 @@ static bool bond_should_notify_peers(struct bonding *bond)
slave ? slave->dev->name : "NULL");
if (!slave || !bond->send_peer_notif ||
!netif_carrier_ok(bond->dev) ||
test_bit(__LINK_STATE_LINKWATCH_PENDING, &slave->dev->state))
return false;