Hi Greg,

I have sent the patch in another mail with the suggested changes.


On Tue, May 22, 2018 at 11:36 PM, Gregory Rose <[email protected]> wrote:

> On 5/21/2018 11:48 PM, Neelakantam Gaddam wrote:
>
>> This patch fixes the kernel soft lockup issue with vxlan configuration
>> where
>> the tunneled packet is sent on the same bridge where vxlan port is
>> attched to.
>> It detects the loop in vxlan xmit functionb and drops if loop is detected.
>>
>> Signed-off-by: Neelakantam Gaddam <[email protected]>
>>
>
> The patch has a white space error:
> Applying patch #918026 using 'git am'
> Description: [ovs-dev] compat: Fix for the packet loop issue in vxlan
> Applying: compat: Fix for the packet loop issue in vxlan
> /home/gvrose/prj/ovs-experimental/.git/rebase-apply/patch:14: trailing
> whitespace.
>                 if ((rt->dst.dev == dev) ||
> warning: 1 line adds whitespace errors.
>
> Also, the subject line might be better with "vxlan: Fix for the packet
> loop issue in vxlan"
>
> Other than that seems fine and tested out OK.  The maintainer may choose
> to ask you to send  V2 or
> might just fix up the subject line and white space error and commit,
> that's their prerogative.
>
> Tested-by: Greg Rose <[email protected]>
> Reviewed-by: Greg Rose <[email protected]>
>
>
> ---
>>   datapath/linux/compat/vxlan.c | 6 ++++--
>>   1 file changed, 4 insertions(+), 2 deletions(-)
>>
>> diff --git a/datapath/linux/compat/vxlan.c b/datapath/linux/compat/vxlan.
>> c
>> index d27a5e2..0f4034f 100644
>> --- a/datapath/linux/compat/vxlan.c
>> +++ b/datapath/linux/compat/vxlan.c
>> @@ -1115,7 +1115,8 @@ static void vxlan_xmit_one(struct sk_buff *skb,
>> struct net_device *dev,
>>                         goto tx_error;
>>                 }
>>   -             if (rt->dst.dev == dev) {
>> +               if ((rt->dst.dev == dev) ||
>> +                   (OVS_CB(skb)->input_vport->dev == rt->dst.dev)) {
>>                         netdev_dbg(dev, "circular route to %pI4\n",
>>                                    &dst->sin.sin_addr.s_addr);
>>                         dev->stats.collisions++;
>> @@ -1174,7 +1175,8 @@ static void vxlan_xmit_one(struct sk_buff *skb,
>> struct net_device *dev,
>>                         goto tx_error;
>>                 }
>>   -             if (ndst->dev == dev) {
>> +               if ((ndst->dev == dev) ||
>> +                   (OVS_CB(skb)->input_vport->dev == ndst->dev)) {
>>                         netdev_dbg(dev, "circular route to %pI6\n",
>>                                    &dst->sin6.sin6_addr);
>>                         dst_release(ndst);
>>
>
>


-- 
Thanks & Regards
Neelakantam Gaddam
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