tcp: fix tcp_grow_window() for large incoming frames
tcp_grow_window() has to grow rcv_ssthresh up to window_clamp, allowing sender to increase its window. tcp_grow_window() still assumes a tcp frame is under MSS, but its no longer true with LRO/GRO. This patch fixes one of the performance issue we noticed with GRO on. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Tom Herbert <therbert@google.com> Acked-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
48159f009f
commit
4d846f0239
|
@ -335,6 +335,7 @@ static void tcp_grow_window(struct sock *sk, const struct sk_buff *skb)
|
|||
incr = __tcp_grow_window(sk, skb);
|
||||
|
||||
if (incr) {
|
||||
incr = max_t(int, incr, 2 * skb->len);
|
||||
tp->rcv_ssthresh = min(tp->rcv_ssthresh + incr,
|
||||
tp->window_clamp);
|
||||
inet_csk(sk)->icsk_ack.quick |= 1;
|
||||
|
|
Loading…
Reference in New Issue