Release 4.14 net/ipv6/tcpv6_offload.c
/*
* IPV6 GSO/GRO offload support
* Linux INET6 implementation
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
* TCPv6 GSO/GRO support
*/
#include <linux/skbuff.h>
#include <net/protocol.h>
#include <net/tcp.h>
#include <net/ip6_checksum.h>
#include "ip6_offload.h"
static struct sk_buff **tcp6_gro_receive(struct sk_buff **head,
struct sk_buff *skb)
{
/* Don't bother verifying checksum if we're going to flush anyway. */
if (!NAPI_GRO_CB(skb)->flush &&
skb_gro_checksum_validate(skb, IPPROTO_TCP,
ip6_gro_compute_pseudo)) {
NAPI_GRO_CB(skb)->flush = 1;
return NULL;
}
return tcp_gro_receive(head, skb);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Vlad Yasevich | 44 | 70.97% | 1 | 25.00% |
| Herbert Xu | 13 | 20.97% | 2 | 50.00% |
| Tom Herbert | 5 | 8.06% | 1 | 25.00% |
| Total | 62 | 100.00% | 4 | 100.00% |
static int tcp6_gro_complete(struct sk_buff *skb, int thoff)
{
const struct ipv6hdr *iph = ipv6_hdr(skb);
struct tcphdr *th = tcp_hdr(skb);
th->check = ~tcp_v6_check(skb->len - thoff, &iph->saddr,
&iph->daddr, 0);
skb_shinfo(skb)->gso_type |= SKB_GSO_TCPV6;
return tcp_gro_complete(skb);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Vlad Yasevich | 71 | 93.42% | 1 | 33.33% |
| Jerry Chu | 5 | 6.58% | 2 | 66.67% |
| Total | 76 | 100.00% | 3 | 100.00% |
static struct sk_buff *tcp6_gso_segment(struct sk_buff *skb,
netdev_features_t features)
{
struct tcphdr *th;
if (!pskb_may_pull(skb, sizeof(*th)))
return ERR_PTR(-EINVAL);
if (unlikely(skb->ip_summed != CHECKSUM_PARTIAL)) {
const struct ipv6hdr *ipv6h = ipv6_hdr(skb);
struct tcphdr *th = tcp_hdr(skb);
/* Set up pseudo header, usually expect stack to have done
* this.
*/
th->check = 0;
skb->ip_summed = CHECKSUM_PARTIAL;
__tcp_v6_send_check(skb, &ipv6h->saddr, &ipv6h->daddr);
}
return tcp_gso_segment(skb, features);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tom Herbert | 111 | 99.11% | 1 | 50.00% |
| Eric Dumazet | 1 | 0.89% | 1 | 50.00% |
| Total | 112 | 100.00% | 2 | 100.00% |
static const struct net_offload tcpv6_offload = {
.callbacks = {
.gso_segment = tcp6_gso_segment,
.gro_receive = tcp6_gro_receive,
.gro_complete = tcp6_gro_complete,
},
};
int __init tcpv6_offload_init(void)
{
return inet6_add_offload(&tcpv6_offload, IPPROTO_TCP);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Vlad Yasevich | 17 | 100.00% | 1 | 100.00% |
| Total | 17 | 100.00% | 1 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Vlad Yasevich | 175 | 56.27% | 2 | 22.22% |
| Tom Herbert | 117 | 37.62% | 2 | 22.22% |
| Herbert Xu | 13 | 4.18% | 2 | 22.22% |
| Jerry Chu | 5 | 1.61% | 2 | 22.22% |
| Eric Dumazet | 1 | 0.32% | 1 | 11.11% |
| Total | 311 | 100.00% | 9 | 100.00% |
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