Re: [PATCH net-next v3 5/5] bnge: make NQ0 persistent across open/stop cycles

[Jakub Kicinski]

On Thu, 22 Oct 2026 16:27:42 +0530 Bhargava Chenna Marreddy wrote:
> What I propose for v4:
> 
> 1. NAPI for NQ0 is added in ndo_open and deleted in ndo_stop, like
>    every other NQ.
> 2. NQ0's IRQ stays requested across open/stop:
>    - When netdev is UP: The IRQ handler schedules NAPI, which handles
>      Rx/Tx, async (including link), and HWRM events.
>    - When netdev is DOWN: There is no NAPI instance. The IRQ handler
>      queues a work item that handles async and HWRM events.
> 3. Mode switches happen only in open/stop, so only one context
>    consumes NQ0 at a time:
>    - open: quiesce the IRQ, flush the work item, then enable NAPI.
>    - stop: disable NAPI, then allow the work item again.

Sounds reasonable (please note that net-next is closed now)