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[NET]: Generalise TSO-specific bits from skb_setup_caps

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This patch generalises the TSO-specific bits from sk_setup_caps by adding
the sk_gso_type member to struct sock.  This makes sk_setup_caps generic
so that it can be used by TCPv6 or UFO.

The only catch is that whoever uses this must provide a GSO implementation
for their protocol which I think is a fair deal :) For now UFO continues to
live without a GSO implementation which is OK since it doesn't use the sock
caps field at the moment.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Herbert Xu 2006-06-30 13:36:35 -07:00 • committed by David S. Miller
parent adcfc7d0b4
commit bcd7611117
6 changed files with 26 additions and 14 deletions
Download patch file Download diff file Expand all files Collapse all files

9
net/ipv4/tcp_output.c
View file

@ -510,8 +510,7 @@ static void tcp_queue_skb(struct sock *sk, struct sk_buff *skb)
static void tcp_set_skb_tso_segs(struct sock *sk, struct sk_buff *skb, unsigned int mss_now)
{
if (skb->len <= mss_now ||
!(sk->sk_route_caps & NETIF_F_TSO)) {
if (skb->len <= mss_now || !sk_can_gso(sk)) {
/* Avoid the costly divide in the normal
* non-TSO case.
*/
@ -525,7 +524,7 @@ static void tcp_set_skb_tso_segs(struct sock *sk, struct sk_buff *skb, unsigned
factor /= mss_now;
skb_shinfo(skb)->gso_segs = factor;
skb_shinfo(skb)->gso_size = mss_now;
skb_shinfo(skb)->gso_type = SKB_GSO_TCPV4;
skb_shinfo(skb)->gso_type = sk->sk_gso_type;
}
}
@ -824,9 +823,7 @@ unsigned int tcp_current_mss(struct sock *sk, int large_allowed)
mss_now = tp->mss_cache;
if (large_allowed &&
(sk->sk_route_caps & NETIF_F_TSO) &&
!tp->urg_mode)
if (large_allowed && sk_can_gso(sk) && !tp->urg_mode)
doing_tso = 1;
if (dst) {