Open Stack

I used ixgbe and vlan, passthrough a VF to vm.
After the VM created, it could not connect to VM on the same compute 
node without use sriov.

在 2015/10/22 10:58, Alexander Duyck 写道:
> I assume by Intel cards you mean something that is running ixgbe?  If so
> and you are trying to use SR-IOV with OVS and VLANs running on top of
> the PF it will fail. The issue is that OVS requires the ability to place
> the PF in promiscuous mode to support VLAN trunking, and ixgbe driver
> prevents that when SR-IOV is enabled.
>
> The "bridge fdb add" approach mentioned should work as long as ixgbe PF
> is used on a flat network.
>
> - Alex
>
> On 10/19/2015 07:33 PM, yujie wrote:
>> Hi Moshe Levi,
>>    Sorry for replying to this message after so long time. The testing
>> environment was unavailable before.
>>    I use Intel cards, but could only tested base kilo and vlan. Could
>> it work?
>>
>> 在 2015/9/22 13:24, Moshe Levi 写道:
>>> Hi Yujie,
>>>
>>> There is a patch https://review.openstack.org/#/c/198736/ which I
>>> wrote to add the mac of the normal instance to
>>> the SR-IOV embedded switch so that the packet will go to the PF
>>> instead of going to the wire.
>>> This is done by using bridge tool with the command "bridge fdb add
>>> <mac> dev <interface>"
>>>
>>> I was able to test it on Mellanox ConnectX3  card with both vlan and
>>> flat network and it worked fine.
>>> I wasn't able to test it on any of the Intel cards, but I was told
>>> the it only working on flat network, in vlan network the Intel card
>>> is dropping the tagged packets and they are not go up to the VF.
>>>
>>> What NIC are you using? Can you try using "bridge fdb add <mac> dev
>>> <interface>" where <mac> is the mac of the normal vm and <interface>
>>> is the PF
>>> and see if  that resolve the issue.
>>> Also can you check it with  flat and vlan networks.
>>>
>>>
>>> -----Original Message-----
>>> From: yujie [mailto:judy_yujie at 126.com]
>>> Sent: Tuesday, September 22, 2015 6:28 AM
>>> To: openstack-dev at lists.openstack.org
>>> Subject: [openstack-dev] [neutron][sriov] SRIOV-VM could not work
>>> well with normal VM
>>>
>>> Hi all,
>>> I am using neutron kilo without dvr to create sriov instance VM-A,it
>>> works well and could connect to its gateway fine.
>>> But when I let the normal instance VM-B which in the same
>>> compute-node with VM-A ping its gateway, it failed. I capture the
>>> packet on the network-node, find the gateway already reply the
>>> ARP-reply message to VM-B. But compute-node which VM-B lives could
>>> not send the package to VM-B.
>>> If delete VM-A and set : echo 0 >
>>> /sys/class/enp5s0f0/device/sriov_numvfs, the problem solved.
>>>
>>> Is it a same question with the bug: SR-IOV port doesn't reach OVS
>>> port on same compute node ?
>>> https://bugs.launchpad.net/neutron/+bug/1492228
>>> Any suggestions will be grateful.
>>>
>>> Thanks,
>>> Yujie
>>>
>>>
>>> __________________________________________________________________________
>>>
>>> OpenStack Development Mailing List (not for usage questions)
>>> Unsubscribe:
>>> OpenStack-dev-request at lists.openstack.org?subject:unsubscribe
>>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
>>>
>>> __________________________________________________________________________
>>>
>>> OpenStack Development Mailing List (not for usage questions)
>>> Unsubscribe:
>>> OpenStack-dev-request at lists.openstack.org?subject:unsubscribe
>>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
>>>
>>
>>
>> __________________________________________________________________________
>>
>> OpenStack Development Mailing List (not for usage questions)
>> Unsubscribe:
>> OpenStack-dev-request at lists.openstack.org?subject:unsubscribe
>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
>
>
> __________________________________________________________________________
> OpenStack Development Mailing List (not for usage questions)
> Unsubscribe: OpenStack-dev-request at lists.openstack.org?subject:unsubscribe
> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev