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Date:      Mon, 19 Jan 2009 17:50:35 +0100
From:      Sascha Holzleiter <sascha@holzleiter.name>
To:        pyunyh@gmail.com
Cc:        freebsd-stable@freebsd.org, Jung-uk Kim <jkim@freebsd.org>
Subject:   Re: FreeBSD 7.1 Breaks re and rl Network Interface Drivers
Message-ID:  <4974AF5B.9050505@holzleiter.name>
In-Reply-To: <20090117044758.GB68290@cdnetworks.co.kr>
References:  <8dfae1c10901070639x67945324jeeecfcac647d7976@mail.gmail.com> <496B7C17.8010107@holzleiter.name> <200901122010.37269.jkim@FreeBSD.org> <496CAB07.5020404@holzleiter.name> <20090117044758.GB68290@cdnetworks.co.kr>

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Pyun YongHyeon wrote:
> On Tue, Jan 13, 2009 at 03:53:59PM +0100, Sascha Holzleiter wrote:
>  > Jung-uk Kim wrote:
>  > >On Monday 12 January 2009 12:21 pm, Sascha Holzleiter wrote:
>  > >>Hi,
>  > >>
>  > >>i see similar problems with a re card:
>  > >>
>  > >>re0@pci0:4:7:0:	class=0x020000 card=0x816710ec chip=0x816710ec
>  > >>rev=0x10 hdr=0x00
>  > >>     vendor     = 'Realtek Semiconductor'
>  > >>     device     = 'RTL8169/8110 Family Gigabit Ethernet NIC'
>  > >>     class      = network
>  > >>     subclass   = ethernet
>  > >>
>  > >>After upgrading to 7.1-RELEASE (and also STABLE) the NIC doesn't
>  > >>seem to receive any frames. I can see the DHCP Requests on the DHCP
>  > >>Server but the DHCPOFFERS are never seen by the client with the re0
>  > >>device. After setting promiscious mode on the interface (i.e. by
>  > >>tcpdump -ni re0) the interface begins to work fine.
>  > >>
>  > >>I've attached a complete dmesg output, but i think the detection
>  > >>works fine, here the short version:
>  > >>
>  > >>re0: <RealTek 8169SC/8110SC Single-chip Gigabit Ethernet> port
>  > >>0x9c00-0x9cff mem 0xdfdff000-0xdfdff0ff irq 20 at device 7.0 on
>  > >>pci4 re0: Chip rev. 0x18000000
>  > >>re0: MAC rev. 0x00000000
>  > >>miibus0: <MII bus> on re0
>  > >>rgephy0: <RTL8169S/8110S/8211B media interface> PHY 1 on miibus0
>  > >>rgephy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX,
>  > >>1000baseT, 1000baseT-FDX, auto
>  > >>re0: Ethernet address: 00:1a:92:35:29:fa
>  > >>re0: [FILTER]
>  > >
>  > >Please revert SVN r180519 (or CVS r1.95.2.22) and try again:
>  > >
>  > >http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/dev/re/if_re.c.diff?r1=1.95.2.21;r2=1.95.2.22
>  > 
>  > Thanks! This fixed my problem. I now have DHCP and a running network 
>  > interface again with a 7.1-STABLE and the reverted r180519 changes.
>  > If you need to test another version for the changes in r180519 let me 
>  > know and i'll test them on this machine.
>  > 
> 
> It seems that RTL8169SC does not like memory mapping. Instead of
> using io mapping for all revisions, how about attached patch?

I updated the source to stable and applied your patch which seems to fix 
the stable code for me. I still have instant DHCP discovery and the 
interface is running smoothly. I could transfer a 500M file without 
problems so connectivity seems to be stable with this patch.


Thanks,
   Sascha



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