Re: [dpdk-users] xl710 NIC doesn't receive 1518 bytes packets

[Alex Kiselev <kiselev99@gmail.com>]

Hi Kyle.

2018-01-24 17:01 GMT+03:00 Kyle Larose <klarose@sandvine.com>:
> Did you set the mtu on the bond port? It has separate configuration IIRC.

Yes, I did. I create bond ports via command line parameters and work
with them the same way as with usual ports
(except few things regarding the requirement to send LACP packets every N ms)

>
>> -----Original Message-----
>> From: users [mailto:users-bounces@dpdk.org] On Behalf Of Alex Kiselev
>> Sent: Wednesday, January 24, 2018 8:51 AM
>> To: users
>> Subject: Re: [dpdk-users] xl710 NIC doesn't receive 1518 bytes packets
>>
>> The issue with receiving 1518 byte packets is half resolved. It was an MTU
>> problem. I moved rte_eth_dev_set_mtu() before the rte_dev_dev_start and it
>> helped. Thanks to Alex _ <asb.tyum@gmail.com>.
>> So, 1518 packets now are successfully sent and received.
>>
>> But, now I've got the same problem with the bonding driver. I created a bond
>> port with four i40e slave ports and place it in the LACP mode.
>> And the bond port doesn't receive 1518 bytes packets.
>>
>> Please, help me to resolve the issue.
>>
>> 2018-01-24 0:44 GMT+03:00 Alex Kiselev <kiselev99@gmail.com>:
>> > Hi.
>> >
>> > It seems that xl710 NIC doesn't receive 1518 (maximum MTU size 1500 +
>> > dot1q ethernet header
>> > 18 bytes) bytes packets. And there is no such problem when I use x520 NIC.
>> >
>> > I am sending ipv4 ICMP ping packets and I am sure that packets go out
>> > from the port on the switch to which my application is connected. This
>> > is the tcpdump output from the mirror port:
>> >
>> > 00:17:52.644171 f8:32:e4:72:61:1b > 68:05:ca:30:61:80, ethertype
>> > 802.1Q (0x8100), length 1518: vlan 10, p 0, ethertype IPv4, (tos 0x0,
>> > ttl 64, id 630, offset 0, flags [DF], proto ICMP (1), length 1500)
>> >     1.0.0.2 > 1.0.0.1: ICMP echo request, id 5386, seq 7, length 1480
>> >
>> > And I if send 1514 bytes packets everything is also ok
>> >
>> > h7 ~ # ip netns exec bs1 ping -s 1468 1.0.0.1 PING 1.0.0.1 (1.0.0.1)
>> > 1468(1496) bytes of data.
>> > 1476 bytes from 1.0.0.1: icmp_seq=1 ttl=64 time=0.935 ms
>> >
>> > tcpdump on mirror switch port for 1514 bytes (ping 1468):
>> >
>> > 00:28:15.890543 f8:32:e4:72:61:1b > 68:05:ca:30:61:80, ethertype
>> > 802.1Q (0x8100), length 1514: vlan 10, p 0, ethertype IPv4, (tos 0x0,
>> > ttl 64, id 22101, offset 0, flags [DF], proto ICMP (1), length 1496)
>> >     1.0.0.2 > 1.0.0.1: ICMP echo request, id 5389, seq 1, length 1476
>> > 00:28:15.890548 68:05:ca:30:61:80 > f8:32:e4:72:61:1b, ethertype
>> > 802.1Q (0x8100), length 1514: vlan 10, p 0, ethertype IPv4, (tos 0x0,
>> > ttl 64, id 22101, offset 0, flags [DF], proto ICMP (1), length 1496)
>> >     1.0.0.1 > 1.0.0.2: ICMP echo reply, id 5389, seq 1, length 1476
>> >
>> > I’ve tried to use rte_eth_dev_set_mtu() with different parameters but
>> > nothing has changed.
>> >
>> > Have I missed something to configure?
>> >
>> > Thanks.
>> >
>> > --
>> > Alex Kiselev
>>
>>
>>
>> --
>> --
>> Kiselev Alexander



-- 
--
Kiselev Alexander