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Date:      Mon, 19 Nov 2001 07:42:31 -0800 (PST)
From:      Nick Sayer <nsayer@quack.kfu.com>
To:        FreeBSD-gnats-submit@freebsd.org
Subject:   kern/32118: 21143 with dc driver will not select 10baseT/UTP media
Message-ID:  <200111191542.fAJFgVD26920@medusa.kfu.com>

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>Number:         32118
>Category:       kern
>Synopsis:       21143 with dc driver will not select 10baseT/UTP media
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Nov 19 15:10:00 PST 2001
>Closed-Date:
>Last-Modified:
>Originator:     Nick Sayer
>Release:        FreeBSD 4.4-RELEASE i386
>Organization:
just me
>Environment:
System: FreeBSD medusa.kfu.com 4.4-RELEASE FreeBSD 4.4-RELEASE #12: Tue Nov 13 16:06:42 PST 2001 nsayer@medusa.kfu.com:/usr/obj/usr/src/sys/MEDUSA i386

The card in question is a znyx 4 port card.

[...]
pcib2: <DEC 21152 PCI-PCI bridge> at device 10.0 on pci0
pci2: <PCI bus> on pcib2
[...]
dc0: <Intel 21143 10/100BaseTX> port 0xd800-0xd87f mem 0xdf000000-0xdf0003ff irq 12 at device 4.0 on pci2
dc0: Ethernet address: 00:c0:95:e1:af:10
miibus0: <MII bus> on dc0
dcphy0: <Intel 21143 NWAY media interface> on miibus0
dcphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
dc1: <Intel 21143 10/100BaseTX> port 0xd400-0xd47f mem 0xde800000-0xde8003ff irq 15 at device 5.0 on pci2
dc1: Ethernet address: 00:c0:95:e1:af:11
miibus1: <MII bus> on dc1
dcphy1: <Intel 21143 NWAY media interface> on miibus1
dcphy1:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
dc2: <Intel 21143 10/100BaseTX> port 0xd000-0xd07f mem 0xde000000-0xde0003ff irq 11 at device 6.0 on pci2
dc2: Ethernet address: 00:c0:95:e1:af:12
miibus2: <MII bus> on dc2
dcphy2: <Intel 21143 NWAY media interface> on miibus2
dcphy2:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
dc3: <Intel 21143 10/100BaseTX> port 0xb800-0xb87f mem 0xdd800000-0xdd8003ff irq 10 at device 7.0 on pci2
dc3: Ethernet address: 00:c0:95:e1:af:13
miibus3: <MII bus> on dc3
dcphy3: <Intel 21143 NWAY media interface> on miibus3
dcphy3:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto


>Description:

I can connect this card to a 100baseTX full- or half-duplex port and it
will autoselect just fine. If I connect this card up to a 10baseT/UTP
hub it will never autoselect. Moreover, if I attempt to force it to
media 10baseT/UTP it will never become active, nor will either device
see a link. If I force 10baseT/UTP mediaopt full-duplex, then it does
get a link and work, but of course every collision becomes an ierr (and
a dropped packet) because it's not really a full-duplex connection.

>How-To-Repeat:

Connect an Intel 21143 chip to a 10baseT/UTP hub.

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:

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