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| author | Ben Hutchings <bhutchings@solarflare.com> | 2012-07-30 16:11:42 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-08-02 00:19:17 -0700 |
| commit | 1485348d2424e1131ea42efc033cbd9366462b01 (patch) | |
| tree | 706d69b398cbd109fd3a9806fa485150d043cc52 /include/net/sock.h | |
| parent | 7e6d06f0de3f74ca929441add094518ae332257c (diff) | |
| download | linux-3.10-1485348d2424e1131ea42efc033cbd9366462b01.tar.gz linux-3.10-1485348d2424e1131ea42efc033cbd9366462b01.tar.bz2 linux-3.10-1485348d2424e1131ea42efc033cbd9366462b01.zip | |
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>
Diffstat (limited to 'include/net/sock.h')
| -rw-r--r-- | include/net/sock.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/net/sock.h b/include/net/sock.h index b3730239bf1..72132aef53f 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -218,6 +218,7 @@ struct cg_proto; * @sk_route_nocaps: forbidden route capabilities (e.g NETIF_F_GSO_MASK) * @sk_gso_type: GSO type (e.g. %SKB_GSO_TCPV4) * @sk_gso_max_size: Maximum GSO segment size to build + * @sk_gso_max_segs: Maximum number of GSO segments * @sk_lingertime: %SO_LINGER l_linger setting * @sk_backlog: always used with the per-socket spinlock held * @sk_callback_lock: used with the callbacks in the end of this struct @@ -338,6 +339,7 @@ struct sock { netdev_features_t sk_route_nocaps; int sk_gso_type; unsigned int sk_gso_max_size; + u16 sk_gso_max_segs; int sk_rcvlowat; unsigned long sk_lingertime; struct sk_buff_head sk_error_queue; |