• Moni Shoua's avatar
    net/bonding: Enable IP multicast for bonding IPoIB devices · 6b1bf096
    Moni Shoua authored
    Allow to enslave devices when the bonding device is not up. Over the discussion
    held at the previous post this seemed to be the most clean way to go, where it
    is not expected to cause instabilities.
    
    Normally, the bonding driver is UP before any enslavement takes place.
    Once a netdevice is UP, the network stack acts to have it join some multicast groups
    (eg the all-hosts 224.0.0.1). Now, since ether_setup() have set the bonding device
    type to be ARPHRD_ETHER and address len to be ETHER_ALEN, the net core code
    computes a wrong multicast link address. This is b/c ip_eth_mc_map() is called
    where for multicast joins taking place after the enslavement another ip_xxx_mc_map()
    is called (eg ip_ib_mc_map() when the bond type is ARPHRD_INFINIBAND)
    
    Signed-off-by: Moni Shoua <monis at voltaire.com>
    Signed-off-by: Or Gerlitz <ogerlitz at voltaire.com>
    Acked-by: default avatarJay Vosburgh <fubar@us.ibm.com>
    Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
    6b1bf096
bond_sysfs.c 40 KB