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| author | Pravin B Shelar <pshelar@nicira.com> | 2013-03-08 15:12:45 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-03-09 16:09:19 -0500 |
| commit | 8344bfc6008d1c7b8b541bb25de7dfacb2188b95 (patch) | |
| tree | bd3b346eee41d1517a07884e3a4112abf2b01d06 /net/ipv4/ipip.c | |
| parent | 720a43efd30f04a0a492c85fb997361c44fbae05 (diff) | |
| download | op-kernel-dev-8344bfc6008d1c7b8b541bb25de7dfacb2188b95.zip op-kernel-dev-8344bfc6008d1c7b8b541bb25de7dfacb2188b95.tar.gz | |
ipip: Use tunnel_ip_select_ident() for tunnel IP-Identification.
tunnel_ip_select_ident() is more efficient when generating ip-header
id given inner packet is of ipv4 type.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/ipip.c')
| -rw-r--r-- | net/ipv4/ipip.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c index 8f024d4..18f5352 100644 --- a/net/ipv4/ipip.c +++ b/net/ipv4/ipip.c @@ -478,6 +478,8 @@ static netdev_tx_t ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev) __be32 dst = tiph->daddr; struct flowi4 fl4; int mtu; + int err; + int pkt_len; if (skb->protocol != htons(ETH_P_IP)) goto tx_error; @@ -591,11 +593,28 @@ static netdev_tx_t ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev) iph->tos = INET_ECN_encapsulate(tos, old_iph->tos); iph->daddr = fl4.daddr; iph->saddr = fl4.saddr; + tunnel_ip_select_ident(skb, old_iph, &rt->dst); if ((iph->ttl = tiph->ttl) == 0) iph->ttl = old_iph->ttl; - iptunnel_xmit(skb, dev); + nf_reset(skb); + skb->ip_summed = CHECKSUM_NONE; + + pkt_len = skb->len - skb_transport_offset(skb); + err = ip_local_out(skb); + if (likely(net_xmit_eval(err) == 0)) { + struct pcpu_tstats *tstats = this_cpu_ptr(dev->tstats); + + u64_stats_update_begin(&tstats->syncp); + tstats->tx_bytes += pkt_len; + tstats->tx_packets++; + u64_stats_update_end(&tstats->syncp); + } else { + dev->stats.tx_errors++; + dev->stats.tx_aborted_errors++; + } + return NETDEV_TX_OK; tx_error_icmp: |
