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macvlan: Add function to test for destination filtering support 

This patch adds a function indicating if a given macvlan can fully supports
destination filtering, especially as it relates to unicast traffic. For
those macvlan interfaces that do not support destination filtering such
passthru or source mode filtering we should not be enabling offload
support.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Alexander Duyck 2018-04-03 17:16:25 -04:00 committed by Jeff Kirsher
parent a222311283
commit 6cb1937d4e
1 changed files with 9 additions and 0 deletions
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9
include/linux/if_macvlan.h
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@ -88,4 +88,13 @@ static inline void *macvlan_accel_priv(struct net_device *dev)
return macvlan->accel_priv;
}
static inline bool macvlan_supports_dest_filter(struct net_device *dev)
{
struct macvlan_dev *macvlan = netdev_priv(dev);
return macvlan->mode == MACVLAN_MODE_PRIVATE ||
macvlan->mode == MACVLAN_MODE_VEPA ||
macvlan->mode == MACVLAN_MODE_BRIDGE;
}
#endif /* _LINUX_IF_MACVLAN_H */