Ubuntu
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  1. Bug #1496942
  2. Comment #1

Comment 1 for bug 1496942

Revision history for this message
Rafael David Tinoco (rafaeldtinoco) wrote :

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).