• Shannon Nelson's avatar
    ldmvsw: better use of link up and down on ldom vswitch · 867fa150
    Shannon Nelson authored
    When an ldom VM is bound, the network vswitch infrastructure is set up for
    it, but was being forced 'UP' by the userland switch configuration script.
    When 'UP' but not actually connected to a running VM, the ipv6 neighbor
    probes fail (not a horrible thing) and start cluttering up the kernel logs.
    Funny thing: these are debug messages that never actually show up, but
    we do see the net_ratelimited messages that say N callbacks were
    suppressed.
    
    This patch defers the netif_carrier_on() until an actual link has been
    established with the VM, as indicated by receiving an LDC_EVENT_UP from
    the underlying LDC protocol.  Similarly, we take the link down when we
    see the LDC_EVENT_RESET.  Now when we see the ndo_open(), we reset the
    link to get things talking again.
    
    Orabug: 25525312
    Signed-off-by: default avatarShannon Nelson <shannon.nelson@oracle.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    867fa150
sunvnet_common.c 43 KB