thunder nic: RX_PACKET_DIS fix regression with Extreme Networks switch

Bug #1674837 reported by Alexandru Avadanii on 2017-03-21
18
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
High
Unassigned
Xenial
High
Unassigned
Yakkety
High
Unassigned
Zesty
High
Unassigned

Bug Description

Upstream backport [3] introduced a regression with ThunderX nodes (CRB-1S, CRB-2S) and our 10G switch (Extreme Networks x670 10GE L3).
We have opened a downstream bug report [1], where we temporarily bypassed this by pinning the kernel to 4.4.0-45.
I also tested 4.8 (multiple builds), 4.10 and 4.11-rc1 (vanilla); all are still affected by link training issues with our switch, with 4.11-rc1 not working at all and reporting more issues (logs attached in a different LP comment [2]).

I also confirmed that reverting the commit in questions fixes the issues in our setup (tested on top of 4.10.0-13 linux-image-generic-hwe-edge package from Xenial).

BR,
Alex

[1] https://jira.opnfv.org/browse/ARMBAND-168
[2] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1672521/comments/17
[3] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1630038

Let me know if I should attach any logs, although there are *no* traces anywhere, at least with default log levels (without recompiling).

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1674837

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

Changed in linux (Ubuntu):
status: New → Incomplete
Changed in linux (Ubuntu):
status: Incomplete → Confirmed
Changed in linux (Ubuntu):
importance: Undecided → High
tags: added: kernel-da-key
Changed in linux (Ubuntu Yakkety):
status: New → Confirmed
Changed in linux (Ubuntu Xenial):
status: New → Confirmed
Changed in linux (Ubuntu Yakkety):
importance: Undecided → High
Changed in linux (Ubuntu Xenial):
importance: Undecided → High
tags: added: xenial yakkety zesty
Changed in linux (Ubuntu Xenial):
status: Confirmed → Triaged
Changed in linux (Ubuntu Yakkety):
status: Confirmed → Triaged
Changed in linux (Ubuntu Zesty):
status: Confirmed → Triaged

This bug was nominated against a series that is no longer supported, ie yakkety. The bug task representing the yakkety nomination is being closed as Won't Fix.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

Changed in linux (Ubuntu Yakkety):
status: Triaged → Won't Fix
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