> -----Original Message-----
> From: Dipayaan Roy <[email protected]>
> Sent: Monday, October 27, 2025 7:46 AM
> To: KY Srinivasan <[email protected]>; Haiyang Zhang
> <[email protected]>; [email protected]; Dexuan Cui
> <[email protected]>; [email protected]; [email protected];
> [email protected]; [email protected]; [email protected]; Long Li
> <[email protected]>; Konstantin Taranov <[email protected]>;
> [email protected]; [email protected];
> [email protected]; [email protected]; Shiraz Saleem
> <[email protected]>; [email protected];
> [email protected]; [email protected]; linux-
> [email protected]; Dipayaan Roy <[email protected]>
> Subject: [PATCH net-next] net: mana: Implement ndo_tx_timeout and
> serialize queue resets per port.
>
> Implement .ndo_tx_timeout for MANA so any stalled TX queue can be detected
> and a device-controlled port reset for all queues can be scheduled to an
> ordered workqueue. The reset for all queues on stall detection is
> recomended by hardware team.
>
> The change introduces a single ordered workqueue
> ("mana_per_port_queue_reset_wq") with WQ_UNBOUND | WQ_MEM_RECLAIM and
> queues exactly one work_struct per port onto it. This achieves:
>
> * Global FIFO across all port reset requests (alloc_ordered_workqueue).
> * Natural per-port de-duplication: the same work_struct cannot be
> queued twice while pending/running.
> * Avoids hogging a per-CPU kworker for long, may-sleep reset paths
> (WQ_UNBOUND).
> * Guarantees forward progress during memory pressure
> (WQ_MEM_RECLAIM rescuer).
>
> Signed-off-by: Dipayaan Roy <[email protected]>
Looks good, except for the comments from Pavan.
Reviewed-by: Haiyang Zhang <[email protected]>
