Date: Tue, 06 Jun 2000 13:51:56 PDT From: Darryl Okahata <darrylo@sr.hp.com> To: Ed DeHart <dehart@pageone.net>, freebsd-mobile@freebsd.org Subject: Re: WaveLAN almost working with PCI adapter Message-ID: <200006062052.NAA28233@mina.sr.hp.com> In-Reply-To: Your message of "Tue, 06 Jun 2000 09:20:36 PDT." <200006061620.JAA26413@mina.sr.hp.com>
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I wrote:
> > pcic0: <VLSI 82C146> at port 0x3e0 iomem 0xd0000 irq 10 on isa0
> > pcic0: management irq 11
>
> You've got an IRQ conflict. Both of these IRQs must match. Try
> changing the kernel config to have pcic0 use IRQ 11 instead of 10. This
> might work.
I need my head examined. You've got too many devices in the
system, and too many IRQs being shared (some/many FreeBSD drivers don't
like shared IRQs). Upon closer examination, we see:
pci1: <Trident model 9750 VGA-compatible display device> at 0.0 irq 11
pci0: <AcerLabs M5237 (Aladdin-V) USB controller> at 2.0 irq 9
xl0: <3Com 3c905B-TX Fast Etherlink XL> port 0xd800-0xd87f mem 0xdd800000-0xdd80007f irq 12 at device 9.0 on pci0
pcic-pci0: <TI PCI-1225 PCI-CardBus Bridge> irq 5 at device 10.0 on pci0
pcic-pci1: <TI PCI-1225 PCI-CardBus Bridge> irq 5 at device 10.1 on pci0
xl1: <3Com 3c905B-TX Fast Etherlink XL> port 0xd400-0xd47f mem 0xdd000000-0xdd00007f irq 10 at device 11.0 on pci0
atapci0: <AcerLabs Aladdin ATA33 controller> port 0xd000-0xd00f irq 0 at device 15.0 on pci0
ata0: at 0x1f0 irq 14 on atapci0
ata1: at 0x170 irq 15 on atapci0
fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on isa0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
pcic0: <VLSI 82C146> at port 0x3e0 iomem 0xd0000 irq 10 on isa0
pcic0: management irq 11
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio1 at port 0x2f8-0x2ff irq 3 on isa0
ppc0: <Parallel port> at port 0x378-0x37f irq 7 on isa0
wi0: <WaveLAN/IEEE 802.11> at port 0x240-0x27f irq 13 slot 0 on pccard0
In particular, note:
* IRQ 10 is used by xl1 and pcic0. The fact that xl1 is using IRQ 10 is
causing FreeBSD to use IRQ 11 for the management IRQ, which won't
work. FreeBSD should really output an error for this case, but
doesn't.
* IRQ 11 is used by both pci1 and pcic0.
* pcic0 needs to use the same IRQ for everything (the VLSI 82C146 IRQ
and management IRQ need to match), *IF* an IRQ is used.
Unfortunately, I don't know of a good solution (my earlier
suggestion to change pcic0 to use IRQ 11 may not work). The basic
problem appears to be the shared IRQs, caused by having too many devices
in the system. Other things to try:
1. Use pcic0 in polling mode. This is not as efficient, but does not
require an IRQ.
2. Disable a serial port if you're not using it.
3. Disable the USB port if you're not using it.
--
Darryl Okahata
darrylo@soco.agilent.com
DISCLAIMER: this message is the author's personal opinion and does not
constitute the support, opinion, or policy of Agilent Technologies, or
of the little green men that have been following him all day.
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