Installing Mellanox OFED in Xenial with Kernel 4.4:
# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.1 LTS
Release: 16.04
Codename: xenial
# uname -a
Linux heatmor 4.4.0-36-generic #55-Ubuntu SMP Thu Aug 11 18:01:55 UTC 2016
x86_64 x86_64 x86_64 GNU/Linux
And, after configuring SR-IOV for ConnectX-4 (after configured with
mlxconfig):
# lspci | grep -i mellanox
08:00.0 Infiniband controller: Mellanox Technologies MT27700 Family [ConnectX-4]
08:00.1 Infiniband controller: Mellanox Technologies MT27700 Family [ConnectX-4]
08:00.2 Infiniband controller: Mellanox Technologies MT27700 Family [ConnectX-4
Virtual Function]
08:00.3 Infiniband controller: Mellanox Technologies MT27700 Family [ConnectX-4
Virtual Function]
08:00.4 Infiniband controller: Mellanox Technologies MT27700 Family [ConnectX-4
Virtual Function]
08:00.5 Infiniband controller: Mellanox Technologies MT27700 Family [ConnectX-4
Virtual Function]
echo 4 > /sys/class/infiniband/mlx5_0/device/sriov_numvfs
echo Follow > /sys/class/infiniband/mlx5_0/device/sriov/0/policy
echo e4:1d:2d:03:00:af:4f:06 > /sys/class/infiniband/mlx5_0/device/sriov/0/node
echo e4:1d:2d:03:00:af:5f:06 > /sys/class/infiniband/mlx5_0/device/sriov/0/port
echo e4:1d:2d:03:00:af:4f:07 > /sys/class/infiniband/mlx5_0/device/sriov/1/node
echo e4:1d:2d:03:00:af:5f:07 > /sys/class/infiniband/mlx5_0/device/sriov/1/port
echo e4:1d:2d:03:00:af:4f:08 > /sys/class/infiniband/mlx5_0/device/sriov/2/node
echo e4:1d:2d:03:00:af:5f:08 > /sys/class/infiniband/mlx5_0/device/sriov/2/port
echo e4:1d:2d:03:00:af:4f:09 > /sys/class/infiniband/mlx5_0/device/sriov/3/node
echo e4:1d:2d:03:00:af:5f:09 > /sys/class/infiniband/mlx5_0/device/sriov/3/port
echo 0000:08:00.2 > /sys/bus/pci/drivers/mlx5_core/unbind
echo 0000:08:00.2 > /sys/bus/pci/drivers/mlx5_core/bind
echo 0000:08:00.3 > /sys/bus/pci/drivers/mlx5_core/unbind
echo 0000:08:00.3 > /sys/bus/pci/drivers/mlx5_core/bind
echo 0000:08:00.4 > /sys/bus/pci/drivers/mlx5_core/unbind
echo 0000:08:00.4 > /sys/bus/pci/drivers/mlx5_core/bind
echo 0000:08:00.5 > /sys/bus/pci/drivers/mlx5_core/unbind
echo 0000:08:00.5 > /sys/bus/pci/drivers/mlx5_core/bind
And attaching this XML to a guest:
<interface type='hostdev' managed='yes'>
<source>
<address type='pci' domain='0' bus='8' slot='0' function='2'/>
</source>
</interface>
root@heatmor:~# virsh attach-device ibdhcprelay ./new-device.xml
--config
I can't start the guest in question:
# virsh start ibdhcprelay
error: Failed to start domain ibdhcprelay
error: internal error: missing IFLA_VF_INFO in netlink response
Looks like there is an incompatibility between Mellanox OFED DKMS
packages and Ubuntu kernel (specifically about netlink support).
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https://bugs.launchpad.net/bugs/1496942
Title:
Infiniband (mellanox) SR-IOV and libvirt + libnl problems
Status in linux package in Ubuntu:
Triaged
Bug description:
When trying to start an IB SR-IOV guest by using the following XML:
<interface type='hostdev' managed='yes'>
<mac address='52:54:00:70:ba:16'/>
<source>
<address type='pci' domain='0x0000' bus='0x08' slot='0x00'
function='0x1'/>
</source>
<address type='pci' domain='0x0000' bus='0x00' slot='0x08'
function='0x0'/>
</interface>
following the Mellanox SR-IOV guide, we are able to start guests using
kernel 3.16 (Utopic).
We are NOT able to start guests using 3.13 OR 3.19. The following
error occurs:
2015-09-17 02:25:07.208+0000: 52157: info : libvirt version: 1.2.12, package:
1.2.12-0ubuntu14.1~cloud0
2015-09-17 02:25:07.208+0000: 52157: error : virSecurityDriverLookup:80 :
unsupported configuration: Security driver apparmor not enabled
2015-09-17 02:25:42.308+0000: 52281: info : libvirt version: 1.2.12, package:
1.2.12-0ubuntu14.1~cloud0
2015-09-17 02:25:42.308+0000: 52281: error : virSecurityDriverLookup:80 :
unsupported configuration: Security driver apparmor not enabled
2015-09-17 02:25:48.996+0000: 52274: error : virNetDevParseVfConfig:1905 :
internal error: missing IFLA_VF_INFO in netlink response
2015-09-17 02:25:49.006+0000: 52274: error : virFileReadAll:1347 : Failed to
open file '/var/run/libvirt/hostdevmgr/ib0_vf0': No such file or directory
2015-09-17 02:25:49.006+0000: 52274: error : virFileReadAll:1347 : Failed to
open file '/var/run/libvirt/qemu/ib0_vf0': No such file or directory
So probably there is some regression in between 3.16 and 3.19 for the
IFLA_VF_INFO feature from netlink AND this has to be backported to
kernel 3.13 for Trusty to have IB SR-IOV working.
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