kern/57036: No media detected by 3c905b-tx on 4.9-release

[Mike Meyer]

>Number:         57036
>Category:       kern
>Synopsis:       No media detected by 3c905b-tx on 4.9-release
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Sep 20 11:10:06 PDT 2003
>Closed-Date:
>Last-Modified:
>Originator:     Mike Meyer
>Release:        FreeBSD 4.8-PRERELEASE i386
>Organization:
Meyer Consulting 
>Environment:
FreeBSD eve.mired.org 4.9-PRERELEASE FreeBSD 4.9-PRERELEASE #20: Sat Sep 20 11:14:56 CDT 2003     mwm at guru.mired.org:/sharetmp/obj/usr/src/sys/EVE  i386


>Description:
	The exphy driver is failing to detect connected media.
>How-To-Repeat:
	Install the driver on a system with a dmesg sufficiently like
the one attached below. Boot, and observe that the xl network isn't
there. The dmesg shows xlphy0 reporting "no media present". Booting a
4.8-PRERELEASE kernel on the same hardware gets this dmesg output:

guru% ssh eve dmesg | grep xl
xl0: <3Com 3c905B-TX Fast Etherlink XL> port 0xe800-0xe87f mem 0xeb000000-0xeb00007f irq 5 at device 10.0 on pci0
xl0: Ethernet address: 00:50:04:84:ac:f1
miibus0: <MII bus> on xl0
xlphy0: <3Com internal media interface> on miibus0
xlphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto

Trying a bit of debugging, the PHY_READ at line 196 (just before the
test of sc->mii_capabilities) returns a 0.

--- dmesg begins here ---

Copyright (c) 1992-2003 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
	The Regents of the University of California. All rights reserved.
FreeBSD 4.9-PRERELEASE #20: Sat Sep 20 11:14:56 CDT 2003
    mwm at guru.mired.org:/sharetmp/obj/usr/src/sys/EVE
Timecounter "i8254"  frequency 1193182 Hz
CPU: AMD-K6(tm) 3D processor (551.25-MHz 586-class CPU)
  Origin = "AuthenticAMD"  Id = 0x58c  Stepping = 12
  Features=0x8021bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,PGE,MMX>
  AMD Features=0x80000800<SYSCALL,3DNow!>
real memory  = 268369920 (262080K bytes)
avail memory = 257806336 (251764K bytes)
Preloaded elf kernel "kernel" at 0xc034d000.
K6-family MTRR support enabled (2 registers)
Using $PIR table, 8 entries at 0xc00fdf10
apm0: <APM BIOS> on motherboard
apm0: found APM BIOS v1.2, connected at v1.2
npx0: <math processor> on motherboard
npx0: INT 16 interface
pcib0: <Host to PCI bridge> on motherboard
pci0: <PCI bus> on pcib0
pcib2: <VIA 82C598MVP (Apollo MVP3) PCI-PCI (AGP) bridge> at device 1.0 on pci0
pci1: <PCI bus> on pcib2
pci1: <ATI Rage128-RF graphics accelerator> at 0.0 irq 11
isab0: <VIA 82C596B PCI-ISA bridge> at device 7.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <VIA 82C596 ATA66 controller> port 0xe000-0xe00f at device 7.1 on pci0
ata0: at 0x1f0 irq 14 on atapci0
ata1: at 0x170 irq 15 on atapci0
pci0: <VIA 83C572 USB controller> at 7.2 irq 10
pci0: <unknown card> (vendor=0x1106, dev=0x3050) at 7.3
xl0: <3Com 3c905B-TX Fast Etherlink XL> port 0xe800-0xe87f mem 0xeb000000-0xeb00007f irq 5 at device 10.0 on pci0
xl0: Ethernet address: 00:50:04:84:ac:f1
miibus0: <MII bus> on xl0
xlphy0: <3Com internal media interface> on miibus0
xlphy0:  no media present
pcm0: <AudioPCI ES1370> port 0xec00-0xec3f irq 7 at device 11.0 on pci0
pcib1: <Host to PCI bridge> on motherboard
pci2: <PCI bus> on pcib1
orm0: <Option ROM> at iomem 0xc0000-0xcafff on isa0
pmtimer0 on isa0
fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on isa0
fdc0: FIFO enabled, 8 bytes threshold
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
kbd0 at atkbd0
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: model Generic PS/2 mouse, device ID 0
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16550A
sio1 at port 0x2f8-0x2ff irq 3 on isa0
sio1: type 16550A
IP packet filtering initialized, divert disabled, rule-based forwarding enabled, default to deny, unlimited logging
ad0: DMA limited to UDMA33, non-ATA66 cable or device
ad0: 9765MB <Maxtor 91024U4> [19841/16/63] at ata0-master UDMA33
ad1: 19541MB <Maxtor 92049U3> [39704/16/63] at ata0-slave UDMA66
acd0: DVD-ROM <LITEON DVD-ROM LTD163D> at ata1-master UDMA33
Mounting root from ufs:/dev/ad0s2a
--- end of dmesg ---
>Fix:
	Not got one.


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