interesting question/observation...never noticed this...just making a guess:

when sending out.....multiple CPUs may simultaneously want to send out
together...
but when coming back.....per network card.....all packet is already
serialized by the hardware....so since this driver is per-piece of
hardware....should not be a problem?

On Fri, May 29, 2009 at 6:49 PM, Lal <learner.ker...@gmail.com> wrote:
> In e1000_clean function in drivers/net/e1000_main.c file, tx_ring[0]
> is protected by spin lock to prevent from being cleaned by multiple
> cpus simultaneously, but rx_ring[0] is not.
>
> Why rx_ring[0] is not protected from multiple cpus ?
>
> Thanks
> -Lal
>
> --
> To unsubscribe from this list: send an email with
> "unsubscribe kernelnewbies" to ecar...@nl.linux.org
> Please read the FAQ at http://kernelnewbies.org/FAQ
>
>



-- 
Regards,
Peter Teoh

------------------------------------------------------------------------------
Register Now for Creativity and Technology (CaT), June 3rd, NYC. CaT 
is a gathering of tech-side developers & brand creativity professionals. Meet
the minds behind Google Creative Lab, Visual Complexity, Processing, & 
iPhoneDevCamp as they present alongside digital heavyweights like Barbarian 
Group, R/GA, & Big Spaceship. http://p.sf.net/sfu/creativitycat-com 
_______________________________________________
E1000-devel mailing list
E1000-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/e1000-devel

Reply via email to