Re: [openib-general] Re: [PATCH 07/16] ehca: interrupt handling routines

[Heiko J Schick]

On 09.05.2006, at 18:49, Michael S. Tsirkin wrote:

> > The trivial way to do it would be to use the same idea as the current
> > ehca driver: just create a thread for receive CQ events and a thread
> > for send CQ events, and defer CQ polling into those two threads.
>
> For RX, isn't this basically what NAPI is doing?
> Only NAPI seems better, avoiding interrupts completely and avoiding  
> latency hit
> by only getting triggered on high load ...

Does NAPI schedules CQ callbacks to different CPUs or stays the callback
(handling of data, etc.) on the same CPU where the interrupt came in?

Regards,
	Heiko
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/