Re: [Qemu-devel] PCI passthrough of 40G ethernet interface (Openstack/KVM)

[jacob jacob]

On Thu, Mar 19, 2015 at 5:42 PM, Shannon Nelson
<address@hidden> wrote:
> On Thu, Mar 19, 2015 at 2:04 PM, jacob jacob <address@hidden> wrote:
>> I have updated to latest firmware and still no luck.
>
> [...]
>
>> [   61.554132] i40e 0000:00:06.0 eth2: the driver failed to link
>> because an unqualified module was detected.     <<<<<<<<<<<<<<<<<<<<
>> [   61.555331] IPv6: ADDRCONF(NETDEV_UP): eth2: link is not ready
>>
>
> So I assume you're getting traffic on the other port and it doesn't
> complain about "unqualified module"?  Does the problem move if you
> swap the cables?  The usual problem here is a QSFP connector that
> isn't compatible with the NIC.  I don't have a pointer handy to the
> official list, but you should be able to get that from your NIC
> supplier.

No. That is not the case.

The traffic counters are for the dpdk test run which uses igb_uio driver.

As i mentioned earlier, have tried all combinations of cable, pci slot
, card etc to isolate any hw issues.