Re: [PATCH net-next] net: mana: Add CQE polling as first-level TX timeout recovery

[Breno Leitao]

Hello Sahil,

On Thu, Nov 12, 2026 at 04:57:18AM -0600, Sahil Chandna wrote:
> Implement a graduated recovery approach: on the first TX timeout (or
> when the previous timeout was more than 2 minutes ago), schedule NAPI on
> the stalled queue's TX CQ via napi_schedule(). This triggers
> mana_poll_tx_cq() through the normal NAPI path, processing any pending
> completions without relying on the interrupt and recovering
> missed-interrupt scenarios without queue reset.

Which interrupt is being missed here?

> If any subsequent TX timeout fires on any queue, within 2 minutes of
> the previous one, escalate to the existing port-level detach/attach
> reset, as the CQE poll did not recover the queue.

How was 2 minutes chosen? mana sets watchdog_timeo to 15 * HZ, no?