[PATCH] SME: Add configurable driver processing time

[Jouni Malinen]

On Fri, Jul 25, 2025 at 07:25:35PM +0530, Chaitanya Tata wrote:
> Some drivers take longer than 100ms, and there by the keepalive is sent
> after the keepalive period and this causes disconnections sometimes, so,
> adjust for the driver's processing delay (a new driver capability) and
> send the keepalive early (no harm in sending early).

"take longer than 100 ms" to do what? What is "processing delay"? That
sounds way too generic if this is just for the keepalive mechanism.

> diff --git a/src/drivers/driver.h b/src/drivers/driver.h
> @@ -2541,6 +2541,9 @@ struct wpa_driver_capa {
> +	/* Driver TX processing delay in microseconds, used for TX delay compensation */
> +	unsigned int driver_tx_processing_delay_ms;

What exactly is included in such TX processing delay? Is this only for
keepalive?

This patch does not include any driver_*.c changes to indicate how this
might be set. Would this be somehow determined from a driver or would
there an out-of-tree driver_*.c implementation that would hardcode the
value? Or something else?

-- 
Jouni Malinen                                            PGP id EFC895FA