Date: Sat, 18 Nov 2000 12:42:48 -0800 (PST) From: Mike Haertel <mike@ducky.net> To: FreeBSD-gnats-submit@freebsd.org Subject: kern/22947: IBM 10/100 EtherJet Cardbus (Xircom X3201) gets wrong MAC addr Message-ID: <200011182042.eAIKgmu10553@ducky.net>
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>Number: 22947 >Category: kern >Synopsis: IBM 10/100 EtherJet Cardbus (Xircom X3201) gets wrong MAC addr >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sat Nov 18 12:50:00 PST 2000 >Closed-Date: >Last-Modified: >Originator: Mike Haertel >Release: FreeBSD 5.0-CURRENT i386 >Organization: >Environment: System: FreeBSD ducky.net 5.0-CURRENT FreeBSD 5.0-CURRENT #1: Wed Nov 15 16:14:57 PST 2000 root@ducky.net:/usr/src/sys/compile/DUCKY i386 Toshiba Satellite 4025 Toshiba Satellite Pro 4280 >Description: I have two laptops, the "old laptop", and the "new laptop". Inspired by the recent progress in the CardBus code, I obtained a pair of IBM 10/100 EtherJet Cardbus ReadyPort adapters, which were manufactured for IBM by Xircom, and are really Xircom 10/100 RealPort cards. First of all, both cards work (almost) fine with the if_dc driver. When connected to my network, either laptop alone works fine. But both laptops cannot be connected at the same time. The problem: both cards come up with the same MAC address, 00:03:01:81:44:04. This MAC address *does not match* the MAC address printed on the outside of either card. When the cards are used under Windows 98, I have verified that the MAC address used matches the one printed on the back of the card. Attempts to manually configure the MAC addresses, using "ifconfig ether", also did not appear to work. Examination of kernel messages showed that the correct MAC address is contained in CardBus configuration ROM for the card, but does not appear to be obviously marked as such. The relevant "dmesg" excerpt is appended. Summary: there appear to be two bugs. 1. the MAC address from CardBus configuration ROM is not getting propagated to the ethernet drivers. 2. the if_dc driver does not appear to be able to reset its MAC address to a different value than the default it somehow comes up with via "ifconfig ether". cardbus0: reading CIS data from ROM Product version: 5.0 Product name: IBM | 10/100 EtherJet CardBus Adapter with 56K Modem | IBMM56 | 1.03 | TUPLE: Unknown(0x88) [4]: fd 4a bb 00 TUPLE: Unknown(0x8a) [12]: 4a 31 35 43 46 42 42 34 41 46 44 00 TUPLE: Unknown(0x8b) [4]: 01 00 00 00 Manufacturer ID: a400030181 TUPLE: DATE [4]: 42 92 7f 26 Functions: Network Adaptor, Multi-Functioned Function Extension: 04060004acbb4afd ^^^^^^^^^^^^ correct MAC address Function Extension: 0102 Function Extension: 0280969800 Function Extension: 0200e1f505 Function Extension: 0301 Function Extension: 0303 Function Extension: 0501 TUPLE: DEVICE_OC [4]: 02 4f 02 ff cardbus0: Opening BAR: type=MEM, bar=10, len=0080 cardbus0: Opening BAR: type=MEM, bar=14, len=0080 cardbus0: Opening BAR: type=MEM, bar=18, len=0100 cardbus0: Opening BAR: type=MEM, bar=28, len=0400 TUPLE: CONFIG_CB [7]: 03 02 03 01 00 00 ff TUPLE: CFTABLE_ENTRY_CB [8]: 41 b0 b0 bc 8e 0e fb 04 TUPLE: CFTABLE_ENTRY_CB [9]: 02 b8 02 b0 bc 8e 1c fb 04 TUPLE: NO_LINK [0]: dc0: <Xircom X3201 10/100BaseTX> port 0x2000-0x207f mem 0x18023400-0x180237ff,0x18023100-0x180231ff,0x18023080-0x180230ff,0x18023000-0x1802307f,0x18024000-0x18027fff,0x18022800-0x18022fff,0x18022000-0x180227ff irq 11 at device 0.0 on cardbus0 dc0: Ethernet address: 00:03:01:81:44:04 miibus0: <MII bus> on dc0 tdkphy0: <TDK 78Q2120 media interface> on miibus0 tdkphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto >How-To-Repeat: >Fix: >Release-Note: >Audit-Trail: >Unformatted: To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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