datapath/linux/compat/dev-openvswitch.c

   1 #ifndef HAVE_DEV_DISABLE_LRO
   2
   3 #include <linux/netdevice.h>
   4
   5 #ifdef NETIF_F_LRO
   6 #include <linux/ethtool.h>
   7
   8 /**
   9  *      dev_disable_lro - disable Large Receive Offload on a device
  10  *      @dev: device
  11  *
  12  *      Disable Large Receive Offload (LRO) on a net device.  Must be
  13  *      called under RTNL.  This is needed if received packets may be
  14  *      forwarded to another interface.
  15  */
  16 void dev_disable_lro(struct net_device *dev)
  17 {
  18         if (dev->ethtool_ops && dev->ethtool_ops->get_flags &&
  19             dev->ethtool_ops->set_flags) {
  20                 u32 flags = dev->ethtool_ops->get_flags(dev);
  21                 if (flags & ETH_FLAG_LRO) {
  22                         flags &= ~ETH_FLAG_LRO;
  23                         dev->ethtool_ops->set_flags(dev, flags);
  24                 }
  25         }
  26         WARN_ON(dev->features & NETIF_F_LRO);
  27 }
  28 #else
  29 void dev_disable_lro(struct net_device *dev) { }
  30 #endif /* NETIF_F_LRO */
  31
  32 #endif /* HAVE_DEV_DISABLE_LRO */