[PATCH] net: smc1111: fix memory congestions

Sascha Hauer s.hauer at pengutronix.de
Tue Jan 6 05:58:45 PST 2015


On Mon, Jan 05, 2015 at 05:16:48PM +0100, robert.jarzmik at free.fr wrote:
> 
> ----- Mail original -----
> De: "Sascha Hauer" <s.hauer at pengutronix.de>
> À: "Robert Jarzmik" <robert.jarzmik at free.fr>
> Cc: barebox at lists.infradead.org
> Envoyé: Lundi 5 Janvier 2015 13:11:50
> Objet: Re: [PATCH] net: smc1111: fix memory congestions
> 
> > I don't know the hardware (not anymore, fortunately ;), but isn't it
> > possible to dedicate one bucket for transmitting only, so that it will
> > never be occupied by a received packet?
> None I'm aware of.
> I've been through the specification many times, and my understanding is
> that :
>  - the MMU allocation is symmetric (either from CPU for TX or from NIC
>    for RX)
>  - there is no configurable threshold or limit
>  - first customer is first served from the MMU point of view

Ok then, applied.

Sascha

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