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| author | Tom Herbert <tom@herbertland.com> | 2015-08-19 17:07:33 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-08-23 15:59:56 -0700 |
| commit | 58ce31cca1ffe057f4744c3f671e3e84606d3d4a (patch) | |
| tree | 3064292bc9c0a5a86d7120856cc8838aa2c7de61 /drivers/net/vxlan.c | |
| parent | b7fe10e5ebac2a3f37e95535e616494b65fa020f (diff) | |
| download | blackbird-op-linux-58ce31cca1ffe057f4744c3f671e3e84606d3d4a.tar.gz blackbird-op-linux-58ce31cca1ffe057f4744c3f671e3e84606d3d4a.zip | |
vxlan: GRO support at tunnel layer
Add calls to gro_cells infrastructure to do GRO when receiving on a tunnel.
Testing:
Ran 200 netperf TCP_STREAM instance
- With fix (GRO enabled on VXLAN interface)
Verify GRO is happening.
9084 MBps tput
3.44% CPU utilization
- Without fix (GRO disabled on VXLAN interface)
Verified no GRO is happening.
9084 MBps tput
5.54% CPU utilization
Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/vxlan.c')
| -rw-r--r-- | drivers/net/vxlan.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index 64fcd2402562..61b457b9ec00 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -1208,7 +1208,7 @@ static void vxlan_rcv(struct vxlan_sock *vs, struct sk_buff *skb, stats->rx_bytes += skb->len; u64_stats_update_end(&stats->syncp); - netif_rx(skb); + gro_cells_receive(&vxlan->gro_cells, skb); return; drop: @@ -2446,6 +2446,8 @@ static void vxlan_setup(struct net_device *dev) vxlan->dev = dev; + gro_cells_init(&vxlan->gro_cells, dev); + for (h = 0; h < FDB_HASH_SIZE; ++h) INIT_HLIST_HEAD(&vxlan->fdb_head[h]); } @@ -2885,6 +2887,7 @@ static void vxlan_dellink(struct net_device *dev, struct list_head *head) hlist_del_rcu(&vxlan->hlist); spin_unlock(&vn->sock_lock); + gro_cells_destroy(&vxlan->gro_cells); list_del(&vxlan->next); unregister_netdevice_queue(dev, head); } @@ -3093,8 +3096,10 @@ static void __net_exit vxlan_exit_net(struct net *net) /* If vxlan->dev is in the same netns, it has already been added * to the list by the previous loop. */ - if (!net_eq(dev_net(vxlan->dev), net)) + if (!net_eq(dev_net(vxlan->dev), net)) { + gro_cells_destroy(&vxlan->gro_cells); unregister_netdevice_queue(vxlan->dev, &list); + } } unregister_netdevice_many(&list); |
