On 1/18/2018 4:08 PM, wenxu wrote:
Hi Gregory,
How about the test result for this patch?
BR
wenxu
My apologies Wenxu but I've been pulled onto some other high priority
issues of late.
I will return to this patch when I've gotten everything squared away.
Thanks,
- Greg
At 2018-01-08 10:47:19, "wenxu" <we...@ucloud.cn> wrote:
At 2018-01-06 02:23:52, "Gregory Rose" <gvrose8...@gmail.com
<mailto:gvrose8...@gmail.com>> wrote:
>On 12/28/2017 8:45 PM, we...@ucloud.cn <mailto:we...@ucloud.cn> wrote:
>> From: wenxu <we...@ucloud.cn <mailto:we...@ucloud.cn>>
>>
>> if the gro enable, ipgre receive a gre-tso package. After pop
>> the gre-tunnel the encapsulation and GSO_ENCAP flags should be
>> striped. or the packet encap again and will be dropped in
>> ovs_iptunnel_handle_offloads
>>
>> Signed-off-by: wenxu <we...@ucloud.cn <mailto:we...@ucloud.cn>>
>> ---
>> datapath/linux/compat/ip_gre.c | 2 ++
>> 1 file changed, 2 insertions(+)
>>
>> diff --git a/datapath/linux/compat/ip_gre.c
b/datapath/linux/compat/ip_gre.c
>> index 03c5435..94fdaa9 100644
>> --- a/datapath/linux/compat/ip_gre.c
>> +++ b/datapath/linux/compat/ip_gre.c
>> @@ -140,6 +140,8 @@ static int ipgre_rcv(struct sk_buff *skb, const
struct tnl_ptk_info *tpi)
>> __be64 tun_id;
>> int err;
>>
>> + if (iptunnel_pull_offloads(skb))
>> + return PACKET_REJECT;
>>
>> skb_pop_mac_header(skb);
>> flags = tpi->flags & (TUNNEL_CSUM | TUNNEL_KEY);
>
>Wenxu,
>
>I see to patches in the dev list that appear to be identical but this
>one has the later timestamp so I'll
>respond to this one.
>
>The patch looks simple enough itself but can you explain how to trigger
>the bug so that I can test
>this fix?
server1: ipaddr on eth2 172.168.0.1/24
ovs-vsctl add br br0
ovs-vsctl add-port br0 gre1 -- set in gre1 type=gre
options:local_ip=172.168.0.1 options:remote_ip=172.168.0.7
options:key=1000
ifconfig br0 10.0.0.1/24 up
permanent the ip neigh 10.0.0.2
server2:ipaddr on eth2 172.168.0.2/24
ovs-vsctl add br br0
ovs-vsctl add-port br0 gre1 -- set in gre1 type=gre
options:local_ip=172.168.0.2 options:remote_ip=172.168.0.7
options:key=1000
ifconfig br0 10.0.0.2/24 up
permanent the ip neigh 10.0.0.1
server: gateway
ip addr on eth2 172.168.0.7/24
ethtool eth2 gro on
ovs-vsctl add br br0
ovs-vsctl add-port br0 gre1 -- set in gre1 type=gre
options:local_ip=flow options:remote_ip=flow options:key=1000
flows:
in_port=gre1,ip,nw_dst=10.0.0.1,actions=set_field:172.168.0.7->tun_src,set_field:172.168.0.1->tun_dst,output:IN_PORT
in_port=gre1,ip,nw_dst=10.0.0.2,actions=set_field:172.168.0.7->tun_src,set_field:172.168.0.2->tun_dst,output:IN_PORT
iperf bettwen 10.0.0.1 and 10.0.0.2, the performance is so bad,
most of the packet drop on gre_sys of gateway
Disable gateway gro of eth2 'ethtool -K eth2 gro off ' , there is
no drop
When packet encap again and will be dropped in
ovs_iptunnel_handle_offloads
if (likely(!skb_is_encapsulated(skb))) {
skb_reset_inner_headers(skb); skb->encapsulation = 1; } else if
(skb_is_gso(skb)) { err = -ENOSYS;
*//drop in here* goto error; }
>
>Thanks,
>
>- Greg
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