ACK: [SRU][J:linux-bluefield][PATCH v1 0/1] UBUNTU: SAUCE: mlxbf-gige: Fix intermittent no ip issue

[Bartlomiej Zolnierkiewicz]

On Thu, Mar 2, 2023 at 6:57 PM Bartlomiej Zolnierkiewicz
<bartlomiej.zolnierkiewicz at canonical.com> wrote:
>
> Acked-by: Bartlomiej Zolnierkiewicz <bartlomiej.zolnierkiewicz at canonical.com>

I ACK-ed the wrong submission by mistake (this one was NAK-ed by
Stefan), I'll ACK the latest one instead.

> On Wed, Mar 1, 2023 at 12:03 AM Asmaa Mnebhi <asmaa at nvidia.com> wrote:
> >
> > BugLink: https://bugs.launchpad.net/bugs/2008833
> >
> > SRU Justification:
> >
> > [Impact]
> >
> > Although the link is up, and the PHY interrupt is cleared, there is no ip assigned.
> > Nothing is being transmitted, and nothing is received. The RX error count keeps on
> > increasing (check ifconfig oob_net0). After several minutes, the RX error count
> > stagnates and the oob finally gets an ip and is pingable.
> >
> > [Fix]
> >
> > The issue is in the mlxbf_gige_rx_init function. As soon as the RX DMA is enabled,
> > the RX CI reaches the max 128, it becomes equal to RX PI. And RX CI doesn't decrease
> > since the code hasn't ran phy_start yet. The solution is to move the rx init after
> > phy_start. This fix applies to both 5.4 and 5.15.
> >
> > [Test Case]
> >
> > * Check if the gige driver is loaded
> > * Check that the oob_net0 interface is up and pingable from an external host
> > * Do at ~1000 resets and powercycles and check the oon_net0 interface again
> >
> > [Regression Potential]
> >
> > * No known regressions.
> >
> > Asmaa Mnebhi (1):
> >   UBUNTU: SAUCE: mlxbf-gige: Fix intermittent no ip issue
> >
> >  .../ethernet/mellanox/mlxbf_gige/mlxbf_gige_main.c | 14 +++++++-------
> >  .../ethernet/mellanox/mlxbf_gige/mlxbf_gige_rx.c   |  6 +++---
> >  2 files changed, 10 insertions(+), 10 deletions(-)
> >