Thread (18 messages) 18 messages, 5 authors, 2026-01-26

Re: [PATCH net-next 0/3] net: ethtool: Track TX pause storm

From: Gal Pressman <hidden>
Date: 2026-01-25 09:59:19

On 23/01/2026 20:40, Jakub Kicinski wrote:
quoted
- The auto-recovery (service task) enforces a fixed policy. Can we make
  this configurable? I used devlink health (.recover) to let userspace
  decide between auto-reset or manual intervention.
There is already a tunable for this exact feature but for PFC:
ETHTOOL_PFC_PREVENTION_TOUT. Should be trivial to add the same thing for
non-PFC pause. But we didn't want to open the uAPI can of warms unless
there's a clear ask and consensus. We don't need tuning (or so we
think), and there was some talk about not adding uAPI for fbnic because
it's a "private device".
I had to refresh my memory on this, but I think we've chosen a non-ideal
name back then.
We use this value for both PFC and global pause, I recommend you do the
same (perhaps with better documentation?).

mlx5 exposes tx_pause_storm_warning_events/tx_pause_storm_error_events
through 'ethtool -S', we can probably assign one of them into
tx-pause-storm-events.
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