add driver 5G

hc

2024-01-31 f9004dbfff8a3fbbd7e2a88c8a4327c7f2f8e5b2

 kernel/include/net/vxlan.h
..
..
@@ -327,10 +327,15 @@
327
327
 	return features;
328
328
 }
329
329
 
330
-/* IP header + UDP + VXLAN + Ethernet header */
331
-#define VXLAN_HEADROOM (20 + 8 + 8 + 14)
332
-/* IPv6 header + UDP + VXLAN + Ethernet header */
333
-#define VXLAN6_HEADROOM (40 + 8 + 8 + 14)
330
+static inline int vxlan_headroom(u32 flags)
331
+{
332
+	/* VXLAN:     IP4/6 header + UDP + VXLAN + Ethernet header */
333
+	/* VXLAN-GPE: IP4/6 header + UDP + VXLAN */
334
+	return (flags & VXLAN_F_IPV6 ? sizeof(struct ipv6hdr) :
335
+				       sizeof(struct iphdr)) +
336
+	       sizeof(struct udphdr) + sizeof(struct vxlanhdr) +
337
+	       (flags & VXLAN_F_GPE ? 0 : ETH_HLEN);
338
+}
334
339
 
335
340
 static inline struct vxlanhdr *vxlan_hdr(struct sk_buff *skb)
336
341
 {
..
..
@@ -492,12 +497,12 @@
492
497
 }
493
498
 
494
499
 static inline bool vxlan_fdb_nh_path_select(struct nexthop *nh,
495
-					    int hash,
500
+					    u32 hash,
496
501
 					    struct vxlan_rdst *rdst)
497
502
 {
498
503
 	struct fib_nh_common *nhc;
499
504
 
500
-	nhc = nexthop_path_fdb_result(nh, hash);
505
+	nhc = nexthop_path_fdb_result(nh, hash >> 1);
501
506
 	if (unlikely(!nhc))
502
507
 		return false;
503
508