A quick test on the kernel in comment #14: Mellanox CX3 VF device is not showing up when booting up with this test kernel: 4.4.0-64-generic. Looks like this is a regression from 4.4.0-63-generic. In 4.4.0-63-generic, the VF presented correctly.
1. Boot with this test kernel: 4.4.0-64-generic; then VF is not listed in lspci: root@ubuntu1604-client:~# uname -r 4.4.0-64-generic root@ubuntu1604-client:~# lspci 00:00.0 Host bridge: Intel Corporation 440BX/ZX/DX - 82443BX/ZX/DX Host bridge (AGP disabled) (rev 03) 00:07.0 ISA bridge: Intel Corporation 82371AB/EB/MB PIIX4 ISA (rev 01) 00:07.1 IDE interface: Intel Corporation 82371AB/EB/MB PIIX4 IDE (rev 01) 00:07.3 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 02) 00:08.0 VGA compatible controller: Microsoft Corporation Hyper-V virtual VGA 00:0a.0 Ethernet controller: Digital Equipment Corporation DECchip 21140 [FasterNet] (rev 20) 2. Then boot the same VM with same configuration on: 4.4.0-63-generic, VF shows up. root@ubuntu1604-client:~# uname -r 4.4.0-63-generic root@ubuntu1604-client:~# lspci 0000:00:00.0 Host bridge: Intel Corporation 440BX/ZX/DX - 82443BX/ZX/DX Host bridge (AGP disabled) (rev 03) 0000:00:07.0 ISA bridge: Intel Corporation 82371AB/EB/MB PIIX4 ISA (rev 01) 0000:00:07.1 IDE interface: Intel Corporation 82371AB/EB/MB PIIX4 IDE (rev 01) 0000:00:07.3 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 02) 0000:00:08.0 VGA compatible controller: Microsoft Corporation Hyper-V virtual VGA 0000:00:0a.0 Ethernet controller: Digital Equipment Corporation DECchip 21140 [FasterNet] (rev 20) 99b2:00:02.0 Ethernet controller: Mellanox Technologies MT27500/MT27520 Family [ConnectX-3/ConnectX-3 Pro Virtual Function] <=== this is the VF device -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1650058 Title: [Hyper-V/Azure] Please include Mellanox OFED drivers in Azure kernel and image Status in linux package in Ubuntu: In Progress Status in linux source package in Xenial: Fix Committed Bug description: In order to have the correct VF driver to support SR-IOV in Azure, the Mellanox OFED distribution needs to be included in the kernel and the image. Mellanox's drivers are not upstream, but they are available from here: https://www.mellanox.com/page/products_dyn?product_family=26&mtag=linux_sw_drivers&ssn=3nnhohirh5htv6dnp1uk7tf487 While this configuration is not explicitly listed as supported in the release notes, Microsoft and Mellanox engineers are working on the corresponding Windows Server 2016 PF driver to support this VF driver in operation in Ubuntu guests. I file file a corresponding rebase request to pick up the PCI passthrough and other SR-IOV work done for the Hyper-V capabilities in the upstream 4.9 kernel. Only 64-bit support for Ubuntu 16.04's HWE kernel is needed. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1650058/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
