3Com 3c905B-COMBO and 10base2/BNC

[Karol Kwiatkowski]

Hi all,

anyone got 3Com 3c905B-COMBO network card (Fast EtherLink XL PCI)
working with 10base2/BNC?

I just bought one and I can't figure it out. It has BNC connector and
should be supported according to man xl page.

With ifconfig_xl0="DHCP" in /etc/rc.conf and BNC cable connected (with
terminator) ifconfig reports:

xl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        options=9<RXCSUM,VLAN_MTU>
        inet6 fe80::204:76ff:feed:6697%xl0 prefixlen 64 scopeid 0x1
        ether 00:04:76:ed:66:97
        media: Ethernet autoselect (none)
        status: no carrier

dhclient reports "xl0: no link..... giving up"


Now, if I manually try to switch to BNC media with:

# ifconfig xl0 media 10base2/BNC

I get:

# xl0: selecting AUI media, half-duplex

and a kernel panic (trap 12).

The BNC cable itself works with another box. More information below.
Any help appreciated.

Karol


uname:

FreeBSD 6.1-SECURITY #0: Mon Aug 28 05:21:08 UTC 2006
root at builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC i386


verbose dmesg:

xl0: <3Com 3c905B-COMBO Fast Etherlink XL> port 0xec00-0xec7f mem
0xfebffc00-0xfebffc7f irq 10 at device 14.0 on pci0
xl0: Reserved 0x80 bytes for rid 0x14 type 3 at 0xfebffc00
xl0: using memory mapped I/O
xl0: media options word: 3a
xl0: found MII/AUTO
miibus0: <MII bus> on xl0
xlphy0: <3Com internal media interface> on miibus0
xlphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
xl0: found AUI
xl0: found BNC
xl0: bpf attached
xl0: Ethernet address: 00:04:76:ed:66:97
xl0: [MPSAFE]


vmstat -i:

interrupt                          total       rate
irq0: clk                         561773        997
irq1: atkbd0                         257          0
irq5: rl0                             48          0
irq6: fdc0                            11          0
irq8: rtc                          71886        127
irq10: xl0                             3          0
irq14: ata0                         2139          3
irq15: ata1                           47          0
Total                             636164       1129


-- 
Karol Kwiatkowski  <freebsd at orchid dot homeunix dot org>
OpenPGP: http://www.orchid.homeunix.org/carlos/gpg/0x06E09309.asc

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