r8169: only works in 10mbit/half duplex

r8169: only works in 10mbit/half duplex

[Johannes Berg]

Hi,

New system, new trouble -- I got a system with a r8169 integrated (AOpen
MiniPC) and this card only works if I force it to 10mbit half duplex by
using media=1 while loading it.

Even ethtool appears to have no effect, and under windows the device
also is only used in 10mbit mode (only installed that to find out!).

At 100mbit, sending works (I can see the dhcp packets for example) but
receiving doesn't, and the tx/rx led blinks frantically when I enable it
(via auto negotiation or manually). Haven't tried gbit yet.

I'm thinking this is a hardware failure, is there any reason to believe
otherwise?

Thanks,
johannes

Re: r8169: only works in 10mbit/half duplex

[Francois Romieu]

Johannes Berg <johannes@sipsolutions.net> :
[...]
> I'm thinking this is a hardware failure, is there any reason to believe
> otherwise?

It's hard to tell without data. It could be any of the usual suspects
or a genuine bug.

Can you send the complete dmesg from boot + lspci -vvx + /proc/interrupts
of the computer ?

What does ethtool report if you do not force it to 10Mbps with the media=1
option and what hardware is it connected to ? Any URL for the motherboard ?

-- 
Ueimor

Re: r8169: only works in 10mbit/half duplex

[Johannes Berg]

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Hi,

> It's hard to tell without data. It could be any of the usual suspects
> or a genuine bug.

Yeah, I realise that. I've tried booting windows which behaves exactly
the same, with the latest realtek driver. I've sent back the machine
today because I need to have this box up fairly soon. Sorry :/

> Can you send the complete dmesg from boot + lspci -vvx + /proc/interrupts
> of the computer ?

I don't have a dmesg any more, lspci is at
http://johannes.sipsolutions.net/files/lspci-minipc, /proc/interrupts
looked normal as far as I can remember. dmesg didn't say much about
r8169, and other than that I didn't see any problems. I tried booting
with pci=routeirq and some options but none of that helped, and
interrupts were definitely counted in all cases.

> What does ethtool report if you do not force it to 10Mbps with the media=1
> option and what hardware is it connected to ? Any URL for the motherboard ?

Here's the weirdest thing:
If I connected it to 100mbit/full duplex hardware, it worked only if I
forced it to 10mbit (half or full), otherwise the tx/rx led would blink
frantically and the card didn't receive any packets (sending was fine).
If I connected it to gbit hardware it worked in gibt mode, but only got
transfer speeds of about 10mb/sec. Same behaviour with windows.

johannes

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