Date: Mon, 28 May 2001 23:51:13 +0200 (CEST) From: wilko@freebsd.org To: FreeBSD-gnats-submit@freebsd.org Subject: kern/27722: 3C905TX / xl driver broken by mii bug Message-ID: <200105282151.f4SLpDB00595@freebie.demon.nl>
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>Number: 27722 >Category: kern >Synopsis: 3C905TX / xl driver broken by mii bug >Confidential: no >Severity: critical >Priority: high >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon May 28 14:50:01 PDT 2001 >Closed-Date: >Last-Modified: >Originator: Wilko Bulte >Release: FreeBSD 4-STABLE i386 >Organization: Private FreeBSD site - The Netherlands >Environment: 3Com 3c905-TX Fast Etherlink XL ethernet card is needed. System / mainboard is not relevant, observed on both a 750Mc Abit Athlon and a Asus P75. Ethernet card is connected to a Linksys 10/100 mbit hub. Lacking an ethernet switch I could not test that variation. This is not a hardware problem, it occurs on multiple cards in different systems. May 28 22:21:59 freebie /kernel: xl0: <3Com 3c905-TX Fast Etherlink XL> port 0xe000-0xe03f irq 10 at device 13.0 on pci0 May 28 22:21:59 freebie /kernel: xl0: Ethernet address: 00:60:08:09:b7:41 May 28 22:21:59 freebie /kernel: miibus0: <MII bus> on xl0 May 28 22:21:59 freebie /kernel: nsphy0: <DP83840 10/100 media interface> on miibus0 May 28 22:21:59 freebie /kernel: nsphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto >Description: Given mii/nsphy.c V1.8 in the kernel the 3COM cards do not autonegotiate anymore. Rather, they report 'no carrier'. Manually forcing media to 10baseT/UTP does work. Manually forcing 100baseTX does not work. In autonegotiate no link LEDs on the hub or the 3C905 are lit. >How-To-Repeat: See above >Fix: Revert to mii/nsphy.c V1.7 which does not 'enable some undocumented bits' in the PHY chip. Apparantly this does work for fxp, but breaks xl on the 3C905-TX cards. cvs log of mii/nsphy.c ---------------------------- revision 1.8 date: 2001/03/16 14:17:02; author: jlemon; state: Exp; lines: +9 -6 Enable some undocumented bits in the DP83840 PHY, which is needed when using it with the Intel fxp driver. Tested by: peter, Ollivier Robert <roberto@eurocontrol.fr>, Peter Schultz <pete@jocose.org> ---------------------------- >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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