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[Brian Fromme <brian.fromme@xxxxxxxxxxxxx>]

In response to Comment #3
(https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1407760/comments/3):

Mellanox states that this should also be backported to 3.13 (Trusty).
Eyal Perry believes that this patch should apply cleanly.  If there are
any questions about that, he is happy to help.

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https://bugs.launchpad.net/bugs/1407760

Title:
  [SRU][PATCH] [Utopic] Kernel crash when setting vxlan tunnel over the
  mlx4_en when acting as PF

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Utopic:
  In Progress

Bug description:
  Eyal Perry (~eyalpe) writes:

  [Impact]
  When enabling SR-IOV on Mellanox devices and setting vxlan tunnel over the PF device (adding vxlan port to an OVS bridge),
  the kernel is crashing as result of the unimplemented ndos: .ndo_{add,del}_vxlan_port

  [Fix]
  This issue was fixed in upstream kernel:
  9737c6a net/mlx4_en: Add VXLAN ndo calls to the PF net device ops too

  ~/linux$ git describe --contains 9737c6ab7afbc950e997ef80cba2c40dbbd16ea4
  v3.18-rc6~9^2~12

  I've backported it to 3.16 (by removing the "yet to be introduced"
  ndo_gso_check) and attached the backported version here.

  The patch was built and tested on top of ubuntu-trusty: abb1293
  ("UBUNTU: Ubuntu-lts-3.16.0-29.39~14.04.1")

  This only affect 3.16 since it has the VLAN features.

  [Test Case]
  Use the affected Mellanox device w/ an Ubuntu 3.16 kernel. Setup vxlan tunnel over PF device. This should succeed.

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