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    netpoll: add generic support for bridge and bonding devices · 0e34e931
    WANG Cong 提交于
    This whole patchset is for adding netpoll support to bridge and bonding
    devices. I already tested it for bridge, bonding, bridge over bonding,
    and bonding over bridge. It looks fine now.
    
    To make bridge and bonding support netpoll, we need to adjust
    some netpoll generic code. This patch does the following things:
    
    1) introduce two new priv_flags for struct net_device:
       IFF_IN_NETPOLL which identifies we are processing a netpoll;
       IFF_DISABLE_NETPOLL is used to disable netpoll support for a device
       at run-time;
    
    2) introduce one new method for netdev_ops:
       ->ndo_netpoll_cleanup() is used to clean up netpoll when a device is
         removed.
    
    3) introduce netpoll_poll_dev() which takes a struct net_device * parameter;
       export netpoll_send_skb() and netpoll_poll_dev() which will be used later;
    
    4) hide a pointer to struct netpoll in struct netpoll_info, ditto.
    
    5) introduce ->real_dev for struct netpoll.
    
    6) introduce a new status NETDEV_BONDING_DESLAE, which is used to disable
       netconsole before releasing a slave, to avoid deadlocks.
    
    Cc: David Miller <davem@davemloft.net>
    Cc: Neil Horman <nhorman@tuxdriver.com>
    Signed-off-by: NWANG Cong <amwang@redhat.com>
    Signed-off-by: NDavid S. Miller <davem@davemloft.net>
    0e34e931
netdevice.h 69.8 KB