tcp: Apply device TSO segment limit earlier
authorBen Hutchings <bhutchings@solarflare.com>
Mon, 30 Jul 2012 16:11:42 +0000 (16:11 +0000)
committerDavid S. Miller <davem@davemloft.net>
Thu, 2 Aug 2012 07:19:17 +0000 (00:19 -0700)
commit1485348d2424e1131ea42efc033cbd9366462b01
tree706d69b398cbd109fd3a9806fa485150d043cc52
parent7e6d06f0de3f74ca929441add094518ae332257c
tcp: Apply device TSO segment limit earlier

Cache the device gso_max_segs in sock::sk_gso_max_segs and use it to
limit the size of TSO skbs.  This avoids the need to fall back to
software GSO for local TCP senders.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
include/net/sock.h
net/core/sock.c
net/ipv4/tcp.c
net/ipv4/tcp_cong.c
net/ipv4/tcp_output.c