[PATCH] net: smc1111: fix memory congestions

[robert.jarzmik at free.fr]

----- 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

Cheers.

--
Robert