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Date: Wed, 7 Nov 2007 13:52:39 +0200
From: Alexander Shikoff <minotaur@crete.org.ua>
To: Pyun YongHyeon <pyunyh@gmail.com>
Message-ID: <20071107115239.GA1462@crete.org.ua>
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Sender: Alexander Shikoff <minotaur@padonki.org.ua>
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Subject: Re: re0: RealTek 8168/8111B: no carrier
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On Wed, Nov 07, 2007 at 07:14:07PM +0900, Pyun YongHyeon wrote:
> I couldn't see guilty code. In fact I couldn't reproduce it here.
> Since RTL8168/8111 has built-in crossover detection feature how about
> using straight cable?

Further investigation: auto-negotiation works only after 'iconfig re0 up'
command.

How to reproduce:
1. Connect cross-over cable via re0 at 7.0-box and rl0 at 6.2-box.
1. Do not place any configuration for re0 in rc.conf
2. Boot a 7.0-BETA2 box. Just after reboot re0 does not get UP status. 
I see:
# ifconfig re0
re0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=9b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM>
        ether 00:1a:4d:52:4e:b1
        media: Ethernet autoselect (10baseT/UTP <half-duplex>)
        status: no carrier
... and in console:
re0: link state changed to DOWN

4. Force re0 UP with ifconfig re0 up. Then re0 starts and auto-negotiation
works:
# ifconfig re0 up
# ifconfig 
re0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=9b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM>
        ether 00:1a:4d:52:4e:b1
        media: Ethernet autoselect (100baseTX <full-duplex>)
        status: active

So this problem turns into problem of automatic start of re0 interface.
Sorry for this inconvenience with negotiation, but issue with automatic
start is actual. Thanks!

-- 
Kind Regards,	Alexander Shikoff
minotaur@crete.org.ua
Mob.: +380 67 946 31 49