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Diffstat (limited to 'net')
-rw-r--r--net/core/dev.c1
-rw-r--r--net/core/sock.c6
-rw-r--r--net/ipv4/tcp_output.c4
3 files changed, 7 insertions, 4 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index fcdf03cf3b3..f973e38b81a 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4021,6 +4021,7 @@ struct net_device *alloc_netdev_mq(int sizeof_priv, const char *name,
}
dev->egress_subqueue_count = queue_count;
+ dev->gso_max_size = GSO_MAX_SIZE;
dev->get_stats = internal_stats;
netpoll_netdev_init(dev);
diff --git a/net/core/sock.c b/net/core/sock.c
index bb5236aee64..b1a6ed4d33c 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -1095,10 +1095,12 @@ void sk_setup_caps(struct sock *sk, struct dst_entry *dst)
if (sk->sk_route_caps & NETIF_F_GSO)
sk->sk_route_caps |= NETIF_F_GSO_SOFTWARE;
if (sk_can_gso(sk)) {
- if (dst->header_len)
+ if (dst->header_len) {
sk->sk_route_caps &= ~NETIF_F_GSO_MASK;
- else
+ } else {
sk->sk_route_caps |= NETIF_F_SG | NETIF_F_HW_CSUM;
+ sk->sk_gso_max_size = dst->dev->gso_max_size;
+ }
}
}
EXPORT_SYMBOL_GPL(sk_setup_caps);
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index b4e11d834c9..a627616314b 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -998,7 +998,7 @@ unsigned int tcp_current_mss(struct sock *sk, int large_allowed)
xmit_size_goal = mss_now;
if (doing_tso) {
- xmit_size_goal = (65535 -
+ xmit_size_goal = ((sk->sk_gso_max_size - 1) -
inet_csk(sk)->icsk_af_ops->net_header_len -
inet_csk(sk)->icsk_ext_hdr_len -
tp->tcp_header_len);
@@ -1282,7 +1282,7 @@ static int tcp_tso_should_defer(struct sock *sk, struct sk_buff *skb)
limit = min(send_win, cong_win);
/* If a full-sized TSO skb can be sent, do it. */
- if (limit >= 65536)
+ if (limit >= sk->sk_gso_max_size)
goto send_now;
if (sysctl_tcp_tso_win_divisor) {