Power Developer • View topic - EFIKA Full Duplex Net

View unanswered posts | View active topics

Board index » Power Developer » Developers

All times are UTC - 6 hours

EFIKA Full Duplex Net

Page 1 of 1

[ 8 posts ]

Previous topic | Next topic

Author

Message

PurpleAlien

Post subject: EFIKA Full Duplex Net

Posted: Sun Feb 25, 2007 7:31 am

Genesi

Joined:
Mon Jan 30, 2006 2:28 am
Posts:
409
Location:
Finland

Hi all.

I've been using the EFIKA in Full Duplex Network Mode for some time now, so I think the following should work fine (you'll have to recompile your kernel).

In the Kernel source directory, under drivers/net/fec_mpc52xx

- In the file fec.c, change
fec_restart(dev, 0);
to
fec_restart(dev, 1);

- In the file fec_phy.c, change
mk_mii_write(MII_ADVERTISE, MII_ADVERTISE_HALF)
to
mk_mii_write(MII_ADVERTISE, MII_ADVERTISE_ALL)

After recompiling, the network interface should go into full duplex mode.

Best regards,
Johan

Johan Dams, Genesi USA Inc.
Director, Software Engineering

Yep, I have a blog... PurpleAlienPlanet

Top

acrux

Post subject:

Posted: Sun Feb 25, 2007 10:36 am

Joined:
Thu Oct 19, 2006 7:19 am
Posts:
269
Location:
Italy/Greece

thanks, it's really interesting.

greetz,

acrux _at_ linuxmail _dot_ org

Top

volumetric_display

Post subject:

Posted: Thu Mar 08, 2007 8:50 pm

Joined:
Sun Nov 12, 2006 8:11 pm
Posts:
22
Location:
Malaysia

Tried it, compiles and works fine.

But how can I be sure it is working in Full Duplex mode?

Kernel : 2.6.20
Distro : Debian GNU/Linux

ifconfig gives me this output :

Code:

eth0      Link encap:Ethernet  HWaddr 00:0B:2F:FB:63:42  
          inet addr:192.168.1.42  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:33090 errors:28669 dropped:0 overruns:0 frame:0
          TX packets:5042 errors:5042 dropped:0 overruns:0 carrier:5042
          collisions:0 txqueuelen:1000 
          RX bytes:2242143 (2.1 MiB)  TX bytes:6583735 (6.2 MiB)
          Interrupt:133 Base address:0x3000 

A lot of errors there :)

Top

PurpleAlien

Post subject:

Posted: Thu Mar 08, 2007 11:56 pm

Genesi

Joined:
Mon Jan 30, 2006 2:28 am
Posts:
409
Location:
Finland

Hi.

The fact that there are no collisions, but also if you plug it into a decent switch which indicates the mode of the connected device.

Best regards,
Johan

Johan Dams, Genesi USA Inc.
Director, Software Engineering

Yep, I have a blog... PurpleAlienPlanet

Top

acrux

Post subject:

Posted: Fri Mar 09, 2007 4:50 am

Joined:
Thu Oct 19, 2006 7:19 am
Posts:
269
Location:
Italy/Greece

here works fine on 2.6.20.1 , no errors.

Code:

root@efika:~# ifconfig -v eth0
eth0      Link encap:Ethernet  HWaddr 00:0B:2F:FA:D5:9E  
          inet addr:192.168.0.27  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::20b:2fff:fefa:d59e/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:37117 errors:0 dropped:0 overruns:0 frame:0
          TX packets:40858 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:3245831 (3.0 Mb)  TX bytes:5819587 (5.5 Mb)
          Interrupt:133 Base address:0x3000 

i've released a patch with your suggestion:
http://www.powerdeveloper.org/forums/viewtopic.php?p=7334#7334

greetz,

acrux _at_ linuxmail _dot_ org

Top

corsair

Post subject:

Posted: Fri Mar 09, 2007 7:18 am

Joined:
Tue Feb 14, 2006 2:01 pm
Posts:
75
Location:
Germany

volumetric_display wrote:

But how can I be sure it is working in Full Duplex mode?

you could use ethtool (output from my G5):

Code:

G5 ~ # ethtool eth0
Settings for eth0:
   Supported ports: [ TP MII ]
   Supported link modes:   10baseT/Half 10baseT/Full 
                           100baseT/Half 100baseT/Full 
                           1000baseT/Half 1000baseT/Full 
   Supports auto-negotiation: Yes
   Advertised link modes:  10baseT/Half 10baseT/Full 
                           100baseT/Half 100baseT/Full 
                           1000baseT/Half 1000baseT/Full 
   Advertised auto-negotiation: No
   Speed: 1000Mb/s
   Duplex: Full
   Port: MII
   PHYAD: 0
   Transceiver: external
   Auto-negotiation: on
   Supports Wake-on: g
   Wake-on: d
   Current message level: 0x00000007 (7)
   Link detected: yes
G5 ~ #

there you can see the line Duplex: Full

-corsair

Top

PurpleAlien

Post subject:

Posted: Fri Mar 09, 2007 7:22 am

Genesi

Joined:
Mon Jan 30, 2006 2:28 am
Posts:
409
Location:
Finland

Hi.

ethtool and mii-tool don't work with the current implementation of the EFIKA network interface.
The driver should be rewritten to make use of the kernel PHY driver.

I'd like to do it, but I don't have the time...

Best regards,
Johan

Johan Dams, Genesi USA Inc.
Director, Software Engineering

Yep, I have a blog... PurpleAlienPlanet

Top

volumetric_display

Post subject:

Posted: Sun Mar 11, 2007 12:06 am

Joined:
Sun Nov 12, 2006 8:11 pm
Posts:
22
Location:
Malaysia

Ok, I missed out the

- In the file fec.c, change
fec_restart(dev, 0);
to
fec_restart(dev, 1);

first time around. Now that that is in. I don't have any error in TX anymore. But RX errors still looks "serious".

I have pluged in a 3com 3c905C-TX/TX-M PCI card into efika and enabled the drivers in kernel (as module) for it.

Plugged both interface to the same router (WRT54GS), running ddwrt. eth1 reports no error whatsoever.

(Thinking aloud)
Hmm, maybe eth0 is running in promiscuous mode.

Top

Page 1 of 1

[ 8 posts ]

Board index » Power Developer » Developers

All times are UTC - 6 hours

Who is online

Users browsing this forum: No registered users and 1 guest

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum