From: "GORAN GVOZDENOVIC" <ggvozden@pppoe.ca>
To: <grave@ipno.in2p3.fr>, <linuxppc-embedded@ozlabs.org>,
"ppc dev" <linuxppc-dev@ozlabs.org>
Subject: Re: Gb Ethernet on xilinx gemac IP
Date: Tue, 20 Jun 2006 22:20:05 -0400 [thread overview]
Message-ID: <002901c694d9$36c23870$6402a8c0@MASTER> (raw)
In-Reply-To: 1150785936.17197.9.camel@ipnnarval
Hi Xavier,
Just wrapped up efforts to experiment with hard TEMAC support in 2.4 kernel
( previev kit from Montavista ). DENX 2.4 distro should not be different.
Here are my experience with ML403 board:
Configure kernel for only eth driver offered for ML300 / ML403 ( soft EMAC -
10/100Mb on-chip eth ). After updating kernel tree with the BSP using xilinx
patch script for ML403, hard TEMAC driver will end up in
/drivers/net/xilinx_gige ( supported soft MAC driver ends up in
/drivers/net/xilinx_enet ).
>From here 2 options:
a) rename xilinx_gige folder to xilinx_enet and build kernel
b) modify config.in script for kernel network configuration and makefile for
building net driver by addidng new GIGE option
>From my undersanding part of driver code for gige ( adapter.c ) is PHY
specific and supports Marvel's PHY on ML403 board. Never looked more what it
does ( phy interface should be common to all PHYs ? ) but if you use
different PHY maybe you'll have to do some coding here ?!
( look for the comments in the driver )
Oh yes, my tree was missing gmii.h file ( found it throuh google - don't
remember from where - first google hit :) !
Did some test measurement and comparison with soft EMAC against hard TEMAC
+ PLB TEMAC and defualt SG DMA mode (3):
Amazing performance increase: close to 100% on tcp ( netperf and netio shows
over 11000KB/s for max packet size of 32K on 100Mb link )
Hope this helps !
Goran,
Waterloo,Canada
----- Original Message -----
From: "Xavier Grave" <grave@ipno.in2p3.fr>
To: <linuxppc-embedded@ozlabs.org>; "ppc dev" <linuxppc-dev@ozlabs.org>
Sent: Tuesday, June 20, 2006 2:45 AM
Subject: Gb Ethernet on xilinx gemac IP
> Hi,
>
> I'm currently running linux with 10/100 MBits xilinx ethernet driver. I
> have a memec 2VP20 evaluation board.
> We have bought a PCOM2 module in order to have a Gb PHY. I have
> implemented an hardware to handle it but whatever linux version I take
> (2.4 from denx web site, 2.6.17 from kernel.org), I can't configure a Gb
> ethernet driver. And the 10/100 driver don't configure my Gb PHY...
>
> I have compiled my linux kernel based on the ml300 configuration default
> config.
>
> Does anyone has an idea ?
>
> Thanks, xavier
>
> _______________________________________________
> Linuxppc-embedded mailing list
> Linuxppc-embedded@ozlabs.org
> https://ozlabs.org/mailman/listinfo/linuxppc-embedded
prev parent reply other threads:[~2006-06-21 2:20 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-20 6:45 Gb Ethernet on xilinx gemac IP Xavier Grave
2006-06-20 9:04 ` Filippo Capurso - DAVE srl
2006-06-20 7:38 ` Xavier Grave
2006-06-21 2:20 ` GORAN GVOZDENOVIC [this message]
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