This change was made by a bot.

** Changed in: linux (Ubuntu)
       Status: New => Confirmed

-- 
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/1821345

Title:
  Mellanox MT27800 / mlx5_core : cannot bring up VFs if the total number
  of VFs is >= 64 : alloc irq vectors failed

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Hi,

  For the Mellanox NIC MT27800 (MCX556M-ECAT-S25 to be precise), the
  maximum number of VF per PF can be configured in the firmware, by
  running e.g. :

  $ sudo mstconfig -d 32:00.1 set NUM_OF_VFS=127

  If I set this NUM_OF_VFS to 64 or more, the creation of even a single
  VF fails mid-way :

  $ echo 1 | sudo tee /sys/class/net/enp50s0f0/device/sriov_numvfs
  1

  dmesg shows :

  [101418.090970] (0000:32:00.0): E-Switch: E-Switch enable SRIOV: nvfs(1) mode 
(1)
  [101418.182736] (0000:32:00.0): E-Switch: SRIOV enabled: active vports(2)
  [101418.289642] pci 0000:32:00.2: [15b3:1018] type 00 class 0x020000
  [101418.290235] pci 0000:32:00.2: Max Payload Size set to 512 (was 128, max 
512)
  [101418.290261] pci 0000:32:00.2: enabling Extended Tags
  [101418.292432] iommu: Adding device 0000:32:00.2 to group 139
  [101418.292580] iommu: Using direct mapping for device 0000:32:00.2
  [101418.292979] mlx5_core 0000:32:00.2: enabling device (0000 -> 0002)
  [101418.293719] mlx5_core 0000:32:00.2: firmware version: 16.24.1000
  [101418.550589] mlx5_core 0000:32:00.2: alloc irq vectors failed
  [101418.974082] mlx5_core 0000:32:00.2: mlx5_load_one failed with error code 
-28
  [101418.981656] mlx5_core: probe of 0000:32:00.2 failed with error -28

  This is a problem with both the Ubuntu kernel driver and the OFED
  driver.

  Thanks

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: linux-image-4.15.0-46-generic 4.15.0-46.49
  ProcVersionSignature: User Name 4.15.0-46.49-generic 4.15.18
  Uname: Linux 4.15.0-46-generic x86_64
  AlsaDevices:
   total 0
   crw-rw---- 1 root audio 116,  1 Mar 21 08:33 seq
   crw-rw---- 1 root audio 116, 33 Mar 21 08:33 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
  ApportVersion: 2.20.9-0ubuntu7.6
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 
'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  Date: Fri Mar 22 12:43:26 2019
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig'
  MachineType: Supermicro AS -2023US-TR4
  PciMultimedia:
   
  ProcEnviron:
   TERM=screen-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=C.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 astdrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-46-generic 
root=UUID=52d72a05-517b-4c16-8dcb-486bdebcc695 ro console=ttyS1,115200 nosplash 
iommu=pt amd_iommu=on processor.max_cstate=0 l1tf=full cpuidle.off=1
  RelatedPackageVersions:
   linux-restricted-modules-4.15.0-46-generic N/A
   linux-backports-modules-4.15.0-46-generic  N/A
   linux-firmware                             1.173.3
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/04/2018
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 1.1c
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: H11DSU-iN
  dmi.board.vendor: Supermicro
  dmi.board.version: 1.02A
  dmi.chassis.asset.tag: To be filled by O.E.M.
  dmi.chassis.type: 1
  dmi.chassis.vendor: Supermicro
  dmi.chassis.version: 0123456789
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr1.1c:bd10/04/2018:svnSupermicro:pnAS-2023US-TR4:pvr0123456789:rvnSupermicro:rnH11DSU-iN:rvr1.02A:cvnSupermicro:ct1:cvr0123456789:
  dmi.product.family: To be filled by O.E.M.
  dmi.product.name: AS -2023US-TR4
  dmi.product.version: 0123456789
  dmi.sys.vendor: Supermicro

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1821345/+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

Reply via email to