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vxlan: Have the NIC drivers do less work for offloads 

This patch removes the burden from the NIC drivers to check if the
vxlan driver is enabled in the kernel and also makes available
the vxlan headrooms to them.

Signed-off-by: Joseph Gasparakis <joseph.gasparakis@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Joseph Gasparakis 2013-10-24 06:27:10 +00:00 committed by Jeff Kirsher
parent cdfb97bc01
commit e6cd988c27
2 changed files with 11 additions and 4 deletions
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4
drivers/net/vxlan.c
View File

@ -60,10 +60,6 @@
#define VXLAN_N_VID (1u << 24) #define VXLAN_N_VID (1u << 24)
#define VXLAN_VID_MASK (VXLAN_N_VID - 1) #define VXLAN_VID_MASK (VXLAN_N_VID - 1)
/* IP header + UDP + VXLAN + Ethernet header */
#define VXLAN_HEADROOM (20 + 8 + 8 + 14)
/* IPv6 header + UDP + VXLAN + Ethernet header */
#define VXLAN6_HEADROOM (40 + 8 + 8 + 14)
#define VXLAN_HLEN (sizeof(struct udphdr) + sizeof(struct vxlanhdr)) #define VXLAN_HLEN (sizeof(struct udphdr) + sizeof(struct vxlanhdr))
#define VXLAN_FLAGS 0x08000000 /* struct vxlanhdr.vx_flags required value. */ #define VXLAN_FLAGS 0x08000000 /* struct vxlanhdr.vx_flags required value. */

11
include/net/vxlan.h
View File

@ -36,5 +36,16 @@ int vxlan_xmit_skb(struct vxlan_sock *vs,
__be16 vxlan_src_port(__u16 port_min, __u16 port_max, struct sk_buff *skb); __be16 vxlan_src_port(__u16 port_min, __u16 port_max, struct sk_buff *skb);
/* IP header + UDP + VXLAN + Ethernet header */
#define VXLAN_HEADROOM (20 + 8 + 8 + 14)
/* IPv6 header + UDP + VXLAN + Ethernet header */
#define VXLAN6_HEADROOM (40 + 8 + 8 + 14)
#if IS_ENABLED(CONFIG_VXLAN)
void vxlan_get_rx_port(struct net_device *netdev); void vxlan_get_rx_port(struct net_device *netdev);
#else
static inline void vxlan_get_rx_port(struct net_device *netdev)
{
}
#endif
#endif #endif