Lines Matching refs:skb
33 #define indirect_call_gro_receive_l4(f2, f1, cb, head, skb) \
35 unlikely(gro_recursion_inc_test(skb)) ? \
36 NAPI_GRO_CB(skb)->flush |= 1, NULL : \
37 INDIRECT_CALL_L4(cb, f2, f1, head, skb); \
40 static int ipv6_gso_pull_exthdrs(struct sk_buff *skb, int proto)
58 if (unlikely(!pskb_may_pull(skb, 8)))
61 opth = (void *)skb->data;
64 if (unlikely(!pskb_may_pull(skb, len)))
67 opth = (void *)skb->data;
69 __skb_pull(skb, len);
75 static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb,
90 skb_reset_network_header(skb);
91 err = ipv6_hopopt_jumbo_remove(skb);
94 nhoff = skb_network_header(skb) - skb_mac_header(skb);
95 if (unlikely(!pskb_may_pull(skb, sizeof(*ipv6h))))
98 encap = SKB_GSO_CB(skb)->encap_level > 0;
100 features &= skb->dev->hw_enc_features;
101 SKB_GSO_CB(skb)->encap_level += sizeof(*ipv6h);
103 ipv6h = ipv6_hdr(skb);
104 __skb_pull(skb, sizeof(*ipv6h));
107 proto = ipv6_gso_pull_exthdrs(skb, ipv6h->nexthdr);
109 if (skb->encapsulation &&
110 skb_shinfo(skb)->gso_type & (SKB_GSO_IPXIP4 | SKB_GSO_IPXIP6))
112 (skb_shinfo(skb)->gso_type & SKB_GSO_UDP);
114 udpfrag = proto == IPPROTO_UDP && !skb->encapsulation &&
115 (skb_shinfo(skb)->gso_type & SKB_GSO_UDP);
119 skb_reset_transport_header(skb);
120 segs = ops->callbacks.gso_segment(skb, features);
122 skb->network_header = skb_mac_header(skb) + nhoff - skb->head;
130 for (skb = segs; skb; skb = skb->next) {
131 ipv6h = (struct ipv6hdr *)(skb_mac_header(skb) + nhoff);
132 if (gso_partial && skb_is_gso(skb))
133 payload_len = skb_shinfo(skb)->gso_size +
134 SKB_GSO_CB(skb)->data_offset +
135 skb->head - (unsigned char *)(ipv6h + 1);
137 payload_len = skb->len - nhoff - sizeof(*ipv6h);
139 skb->network_header = (u8 *)ipv6h - skb->head;
140 skb_reset_mac_len(skb);
143 int err = ip6_find_1stfragopt(skb, &prevhdr);
150 if (skb->next)
156 skb_reset_inner_headers(skb);
190 struct sk_buff *skb)
202 off = skb_gro_offset(skb);
204 iph = skb_gro_header(skb, hlen, off);
208 skb_set_network_header(skb, off);
209 skb_gro_pull(skb, sizeof(*iph));
210 skb_set_transport_header(skb, skb_gro_offset(skb));
212 flush += ntohs(iph->payload_len) != skb_gro_len(skb);
217 pskb_pull(skb, skb_gro_offset(skb));
218 skb_gro_frag0_invalidate(skb);
219 proto = ipv6_gso_pull_exthdrs(skb, proto);
220 skb_gro_pull(skb, -skb_transport_offset(skb));
221 skb_reset_transport_header(skb);
222 __skb_push(skb, skb_gro_offset(skb));
228 iph = ipv6_hdr(skb);
231 NAPI_GRO_CB(skb)->proto = proto;
234 nlen = skb_network_header_len(skb);
273 if (NAPI_GRO_CB(skb)->is_atomic)
277 NAPI_GRO_CB(skb)->is_atomic = true;
278 NAPI_GRO_CB(skb)->flush |= flush;
280 skb_gro_postpull_rcsum(skb, iph, nlen);
283 ops->callbacks.gro_receive, head, skb);
286 skb_gro_flush_final(skb, pp, flush);
292 struct sk_buff *skb)
296 if (NAPI_GRO_CB(skb)->encap_mark) {
297 NAPI_GRO_CB(skb)->flush = 1;
301 NAPI_GRO_CB(skb)->encap_mark = 1;
303 return ipv6_gro_receive(head, skb);
307 struct sk_buff *skb)
311 if (NAPI_GRO_CB(skb)->encap_mark) {
312 NAPI_GRO_CB(skb)->flush = 1;
316 NAPI_GRO_CB(skb)->encap_mark = 1;
318 return inet_gro_receive(head, skb);
321 INDIRECT_CALLABLE_SCOPE int ipv6_gro_complete(struct sk_buff *skb, int nhoff)
328 if (skb->encapsulation) {
329 skb_set_inner_protocol(skb, cpu_to_be16(ETH_P_IPV6));
330 skb_set_inner_network_header(skb, nhoff);
333 payload_len = skb->len - nhoff - sizeof(*iph);
339 memmove(skb_mac_header(skb) - hoplen, skb_mac_header(skb),
340 skb->transport_header - skb->mac_header);
341 skb->data -= hoplen;
342 skb->len += hoplen;
343 skb->mac_header -= hoplen;
344 skb->network_header -= hoplen;
345 iph = (struct ipv6hdr *)(skb->data + nhoff);
358 iph = (struct ipv6hdr *)(skb->data + nhoff);
367 udp6_gro_complete, skb, nhoff);
373 static int sit_gro_complete(struct sk_buff *skb, int nhoff)
375 skb->encapsulation = 1;
376 skb_shinfo(skb)->gso_type |= SKB_GSO_IPXIP4;
377 return ipv6_gro_complete(skb, nhoff);
380 static int ip6ip6_gro_complete(struct sk_buff *skb, int nhoff)
382 skb->encapsulation = 1;
383 skb_shinfo(skb)->gso_type |= SKB_GSO_IPXIP6;
384 return ipv6_gro_complete(skb, nhoff);
387 static int ip4ip6_gro_complete(struct sk_buff *skb, int nhoff)
389 skb->encapsulation = 1;
390 skb_shinfo(skb)->gso_type |= SKB_GSO_IPXIP6;
391 return inet_gro_complete(skb, nhoff);
403 static struct sk_buff *sit_gso_segment(struct sk_buff *skb,
406 if (!(skb_shinfo(skb)->gso_type & SKB_GSO_IPXIP4))
409 return ipv6_gso_segment(skb, features);
412 static struct sk_buff *ip4ip6_gso_segment(struct sk_buff *skb,
415 if (!(skb_shinfo(skb)->gso_type & SKB_GSO_IPXIP6))
418 return inet_gso_segment(skb, features);
421 static struct sk_buff *ip6ip6_gso_segment(struct sk_buff *skb,
424 if (!(skb_shinfo(skb)->gso_type & SKB_GSO_IPXIP6))
427 return ipv6_gso_segment(skb, features);