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

Bartlomiej Zolnierkiewicz bartlomiej.zolnierkiewicz at canonical.com
Fri Jul 21 15:21:16 UTC 2023


Acked-by: Bartlomiej Zolnierkiewicz <bartlomiej.zolnierkiewicz at canonical.com>

On Thu, Jul 20, 2023 at 10:40 PM shihyic <shihyic at nvidia.com> wrote:
>
> From: Shih-Yi Chen <shihyic at nvidia.com>
>
> BugLink: https://bugs.launchpad.net/ubuntu/+source/linux-bluefield/+bug/2028197
>
> SRU Justification:
>
> [Impact]
>
> 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.
>
> [Fix]
>
> * 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.
>
> [Others]
> This issue is the same on focal and Jammy.
>
>
> Shih-Yi Chen (1):
>   UBUNTU: SAUCE: mlxbf-tmfifo.c: Fix rhsim console w/ truncated dmesg
>     output
>
>  drivers/platform/mellanox/mlxbf-tmfifo.c | 2 ++
>  1 file changed, 2 insertions(+)
>



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