mlxbf_gige: packets received before RX path fully init

Bug #2074123 reported by David Thompson
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux-bluefield (Ubuntu)
New
Undecided
Unassigned
Jammy
Fix Committed
Undecided
Unassigned

Bug Description

SRU Justification:

[Impact]

During the reboot and power cycle testing, QA found an intermittent issue
where "oob_net0" interface would experience RX MAC errors and fail to get
a DHCP-assigned IP. There is a small window where packets can be received
before the RX path is fully initialized, sometimes resulting in RX errors
or RX ring full condition.

[Fix]

* Disable MAC RX filters in driver's probe() and only enable these RX
  filters in driver's open() when all initialization is completed.

[Test Case]

* On BlueField-2 and BlueField-3, do reboot and power cycle testing
* Check that "oob_net0" interface is up, IP is assigned, and there are no RX errors.

[Regression Potential]

* no known regression.

Changed in linux-bluefield (Ubuntu Jammy):
status: New → Fix Committed
Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote :

This bug is awaiting verification that the linux-bluefield/5.15.0-1050.52 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-jammy-linux-bluefield' to 'verification-done-jammy-linux-bluefield'. If the problem still exists, change the tag 'verification-needed-jammy-linux-bluefield' to 'verification-failed-jammy-linux-bluefield'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

tags: added: kernel-spammed-jammy-linux-bluefield-v2 verification-needed-jammy-linux-bluefield
Revision history for this message
Feysel Mohammed (feyselm) wrote :

Using 5.15.0-1050.52.21.gf22d8b5-bluefield after reboot and power cycle test on both BF2 and BF3, oob_net0 interface is up, IP is assigned, and there were no RX errors.

tags: added: verification-done-jammy-linux-bluefield
removed: verification-needed-jammy-linux-bluefield
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