[SRU][J:linux-bluefield][PATCH v3 0/1] UBUNTU: SAUCE: mlxbf-tmfifo.c: amend previous patch

shihyic shihyic at nvidia.com
Thu Jul 20 20:39:39 UTC 2023

From: Shih-Yi Chen <shihyic at nvidia.com> 

BugLink: https://bugs.launchpad.net/ubuntu/+source/linux-bluefield/+bug/2028197

SRU Justification:


mlxbf_tmfifo driver does not always schedule work for VIRTIO CONSOLE nottification. The result is with rshim console, the dmesg output would be cut off or simply cat a big text file to stdout.


* Make sure TM_TX_LWM_IRQ bit is set when there is a notification of virtio console event.

[Test Case]

* Compare the output of dmesg from rshim console and ssh session. Make sure both are the same.
* Issue is reproduced w/o fix and compare the same dmesg output from the same as above.

[Regression Potential]

The changes affect only virtio console event handling only and been tested fully.

This issue is the same on focal and Jammy.

Shih-Yi Chen (1):
  UBUNTU: SAUCE: mlxbf-tmfifo.c: Fix rhsim console w/ truncated dmesg

 drivers/platform/mellanox/mlxbf-tmfifo.c | 2 ++
 1 file changed, 2 insertions(+)


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