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net: Add netif_is_vxlan()
Add the ability to determine whether a netdev is a VxLAN netdev by calling the above mentioned function that checks the netdev's rtnl_link_ops. This will allow modules to identify netdev events involving a VxLAN netdev and act accordingly. For example, drivers capable of VxLAN offload will need to configure the underlying device when a VxLAN netdev is being enslaved to an offloaded bridge. Convert nfp to use the newly introduced helper. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Petr Machata <petrm@mellanox.com> Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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2 changed files with 9 additions and 1 deletions
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@ -4,6 +4,7 @@
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#include <linux/etherdevice.h>
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#include <linux/inetdevice.h>
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#include <net/netevent.h>
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#include <net/vxlan.h>
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#include <linux/idr.h>
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#include <net/dst_metadata.h>
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#include <net/arp.h>
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@ -187,7 +188,7 @@ static bool nfp_tun_is_netdev_to_offload(struct net_device *netdev)
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return false;
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if (!strcmp(netdev->rtnl_link_ops->kind, "openvswitch"))
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return true;
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if (!strcmp(netdev->rtnl_link_ops->kind, "vxlan"))
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if (netif_is_vxlan(netdev))
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return true;
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return false;
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@ -5,6 +5,7 @@
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#include <linux/if_vlan.h>
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#include <net/udp_tunnel.h>
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#include <net/dst_metadata.h>
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#include <net/rtnetlink.h>
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/* VXLAN protocol (RFC 7348) header:
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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@ -402,4 +403,10 @@ static inline bool vxlan_addr_multicast(const union vxlan_addr *ipa)
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#endif /* IS_ENABLED(CONFIG_IPV6) */
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static inline bool netif_is_vxlan(const struct net_device *dev)
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{
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return dev->rtnl_link_ops &&
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!strcmp(dev->rtnl_link_ops->kind, "vxlan");
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}
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#endif
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