[Bug 1907086] Re: hardware offloaded PCI devices don't have associated netlink interfaces

[James Page]

Might be related:

[ 9579.735931] mlx5_core 0000:81:00.0: cmd_work_handler:887:(pid 4320): failed to allocate command entry
[10069.733292] mlx5_core 0000:81:00.0: cmd_work_handler:887:(pid 157001): failed to allocate command entry
[10129.734360] mlx5_core 0000:81:00.1: cmd_work_handler:887:(pid 4312): failed to allocate command entry
[10149.734433] mlx5_core 0000:81:00.1: cmd_work_handler:887:(pid 1339): failed to allocate command entry
[10999.729161] mlx5_core 0000:81:00.1: cmd_work_handler:887:(pid 200907): failed to allocate command entry
[11016.570130] mlx5_core 0000:81:00.1: cmd_work_handler:887:(pid 4378): failed to allocate command entry
[11439.724920] mlx5_core 0000:81:00.0: cmd_work_handler:887:(pid 4377): failed to allocate command entry


** Also affects: linux (Ubuntu)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1907086

Title:
  hardware offloaded PCI devices don't have associated netlink
  interfaces

Status in linux package in Ubuntu:
  New
Status in nova package in Ubuntu:
  New

Bug description:
  Over time the netlink interfaces for PCI devices of VF's of a Mellanox
  ConnectX 5 card disappear:

  # mlnx-switchdev-mode show
  0000:61:00.0    eno1    igb     PF
  0000:61:00.1    eno2    igb     PF
  0000:81:00.0    enp129s0f0      mlx5_core       PF
  0000:81:00.1    enp129s0f1      mlx5_core       PF
  0000:81:02.6    enp129s0f0v20   mlx5_core       VF of enp129s0f0
  0000:81:03.2    enp129s0f0v24   mlx5_core       VF of enp129s0f0

  
  # ip link
  [...]
  103: enp129s0f1: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 9000 qdisc mq master bond0 state UP mode DEFAULT group default qlen 1000
      link/ether 04:3f:72:9f:35:8c brd ff:ff:ff:ff:ff:ff
      vf 0     link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking off, link-state auto, trust off, query_rss off
      vf 1     link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking off, link-state auto, trust off, query_rss off
      vf 2     link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking off, link-state auto, trust off, query_rss off
      vf 3     link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking off, link-state auto, trust off, query_rss off
      vf 4     link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking off, link-state auto, trust off, query_rss off
      vf 5     link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking off, link-state auto, trust off, query_rss off
      vf 6     link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking off, link-state auto, trust off, query_rss off
      vf 7     link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking off, link-state auto, trust off, query_rss off
      vf 8     link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking off, link-state auto, trust off, query_rss off
      vf 9     link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking off, link-state auto, trust off, query_rss off
      vf 10     link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking off, link-state auto, trust off, query_rss off
      vf 11     link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking off, link-state auto, trust off, query_rss off
      vf 12     link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking off, link-state auto, trust off, query_rss off
      vf 13     link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking off, link-state auto, trust off, query_rss off
      vf 14     link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking off, link-state auto, trust off, query_rss off
      vf 15     link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking off, link-state auto, trust off, query_rss off
      vf 16     link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking off, link-state auto, trust off, query_rss off
      vf 17     link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking off, link-state auto, trust off, query_rss off
      vf 18     link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking off, link-state auto, trust off, query_rss off
      vf 19     link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking off, link-state auto, trust off, query_rss off
      vf 20     link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking off, link-state auto, trust off, query_rss off
      vf 21     link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking off, link-state auto, trust off, query_rss off
      vf 22     link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking off, link-state auto, trust off, query_rss off
      vf 23     link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking off, link-state auto, trust off, query_rss off
      vf 24     link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking off, link-state auto, trust off, query_rss off
      vf 25     link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking off, link-state auto, trust off, query_rss off
      vf 26     link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking off, link-state auto, trust off, query_rss off
      vf 27     link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking off, link-state auto, trust off, query_rss off
      vf 28     link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking off, link-state auto, trust off, query_rss off
      vf 29     link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking off, link-state auto, trust off, query_rss off
      vf 30     link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking off, link-state auto, trust off, query_rss off
      vf 31     link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking off, link-state auto, trust off, query_rss off

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