netdev - Re: SRIOV on Intel x710 fail to get attached both at VM creation time and VM runtime

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Message-ID: <CAKgT0UcXmQ8nkFD9LsNmkU9AHaoC7evb0mB0NFqUC2df_NRy0g@mail.gmail.com>
Date:   Thu, 1 Mar 2018 19:40:43 -0800
From:   Alexander Duyck <alexander.duyck@...il.com>
To:     poza@...eaurora.org
Cc:     Jeff Kirsher <jeffrey.t.kirsher@...el.com>,
        intel-wired-lan <intel-wired-lan@...ts.osuosl.org>,
        Netdev <netdev@...r.kernel.org>,
        Sinan Kaya <okaya@...eaurora.org>
Subject: Re: SRIOV on Intel x710 fail to get attached both at VM creation time
 and VM runtime

On Thu, Mar 1, 2018 at 8:12 AM,  <poza@...eaurora.org> wrote:
> + intel-wired-lan@...ts.osuosl.org
>
>
> On 2018-03-01 21:41, poza@...eaurora.org wrote:
>>
>> Hi All,
>>
>> I am facing the following issue on kernel 4.14.14.
>>
>> Enable SRIOV on Intel x710 card.
>> echo 32 > /sys/class/net/eth1/device/sriov_numvfs
>> start net_pool
>> virsh net-start intel_pool
>>
>> case 1)
>> attach the VF while creatig VM:
>> virt-install --accelerate --import --disk /home/disk.img --network
>> network=intel_pool  --boot uefi --name poza-guest --os-type linux
>> --os-variant rhel7 --ram 8000 --vcpus 4
>>
>> case 2)
>> create VM:
>> virt-install --accelerate --import --disk /home/disk.img --boot uefi
>> --name poza-guest --os-type linux --os-variant rhel7 --ram 8000
>> --vcpus 4
>> attach it:
>> virsh attach-interface --domain oza-guest --type network --source
>> intel_pool --target eth1
>>
>> kernel logs:
>> [44287.825287] i40evf 0000:01:02.0: Unable to send opcode 2 to PF, err
>> I40E_ERR_QUEUE_EMPTY, aq_err OK
>> [44287.962640] i40e 0000:01:00.0: VF 0 still in reset. Try again.
>> error: Failed to attach interface
>> error: Cannot set interface MAC/vlanid to 52:54:00:e9:f1:b5/0 for
>> ifname eth1 vf 0: Resource temporarily unavailable
>>
>>
>> The same use case works with following card with the same kernel
>> version and rootfs.
>> Ethernet controller: Mellanox Technologies MT27710 Family [ConnectX-4 Lx]
>>
>> for details logs please have a look at
>> https://bugzilla.kernel.org/show_bug.cgi?id=198959
>>
>> Regards,
>> Oza.

So the first question that jumps to mind is what is the firmware
version on the PF, ethtool -i should tell you. Are there any issues
bringing up the PF and getting it to pass traffic?

Thanks.

- Alex