Re: [PATCH net v2] openvswitch: disable LRO

2015-05-28 Thread Pravin Shelar
On Thu, May 28, 2015 at 6:04 AM, Jiri Benc jb...@redhat.com wrote:
 Currently, openvswitch tries to disable LRO from the user space. This does
 not work correctly when the device added is a vlan interface, though.
 Instead of dealing with possibly complex stacked cross name space relations
 in the user space, do the same as bridging does and call dev_disable_lro in
 the kernel.

 Signed-off-by: Jiri Benc jb...@redhat.com

Looks good.
Acked-by: Pravin B Shelar pshe...@nicira.com
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[PATCH net v2] openvswitch: disable LRO

2015-05-28 Thread Jiri Benc
Currently, openvswitch tries to disable LRO from the user space. This does
not work correctly when the device added is a vlan interface, though.
Instead of dealing with possibly complex stacked cross name space relations
in the user space, do the same as bridging does and call dev_disable_lro in
the kernel.

Signed-off-by: Jiri Benc jb...@redhat.com
---
v1-v2: Disable LRO unconditionally. If the feature that leaves LRO enabled
is implemented in the future in ovs user space, the conditional disablement
can be implemented in the kernel easily. There won't be any problem even
if such new ovs user space is run with older kernels, enabling LRO is just
an optimization.
---
 net/openvswitch/vport-netdev.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/openvswitch/vport-netdev.c b/net/openvswitch/vport-netdev.c
index 4776282c6417..33e6d6e2908f 100644
--- a/net/openvswitch/vport-netdev.c
+++ b/net/openvswitch/vport-netdev.c
@@ -125,6 +125,7 @@ static struct vport *netdev_create(const struct vport_parms 
*parms)
if (err)
goto error_master_upper_dev_unlink;
 
+   dev_disable_lro(netdev_vport-dev);
dev_set_promiscuity(netdev_vport-dev, 1);
netdev_vport-dev-priv_flags |= IFF_OVS_DATAPATH;
rtnl_unlock();
-- 
1.8.3.1

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Re: [PATCH net v2] openvswitch: disable LRO

2015-05-28 Thread Flavio Leitner
On Thu, May 28, 2015 at 03:04:53PM +0200, Jiri Benc wrote:
 Currently, openvswitch tries to disable LRO from the user space. This does
 not work correctly when the device added is a vlan interface, though.
 Instead of dealing with possibly complex stacked cross name space relations
 in the user space, do the same as bridging does and call dev_disable_lro in
 the kernel.
 
 Signed-off-by: Jiri Benc jb...@redhat.com
 ---
LGTM
Acked-by: Flavio Leitner f...@redhat.com


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