Date: Wed, 20 Sep 2000 16:45:08 -0400 (EDT) From: Daniel Eischen <eischen@vigrid.com> To: "Justin T. Gibbs" <gibbs@plutotech.com> Cc: Andy@silverbrook.com.au, Brad Knowles <blk@skynet.be>, stable@FreeBSD.ORG, "Brandon D. Valentine" <bandix@looksharp.net> Subject: Re: MFC of ahc driver updates (long-ish) Message-ID: <Pine.SUN.3.91.1000920162649.18874A-100000@pcnet1.pcnet.com> In-Reply-To: <200009200428.WAA88102@pluto.plutotech.com>
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On Tue, 19 Sep 2000, Justin T. Gibbs wrote:
> >Brandon, I'll take those patches if you've still got them lying
> >around. If not, I'll try to make them myself or try to get the
> >latest -current aic7xxx driver to work.
>
> Testing the stuff from -current would be the best option. There
> are known issues for non-U2/U3 controllers in the code that Brandon
> first proposed to have merged.
OK, I got the -current driver integrated into -stable. The
"ahc0: spurious interrupt..." messages that I was getting
constantly in 4.1-stable were from option AHC_ALLOW_MEMIO
in the kernel config file. I guess there's something
strange about this motherboard/controller combination that
doesn't let it do memory mapped IO. Removing this option
makes the -stable driver bootable.
As for the -current driver transplanted into -stable, this
option has gone away and the check to see if memory mapped
IO works evidently doesn't do the trick because I still get
continuous "spurious interrupt" messages that prevent the
system from booting. I added an #ifdef AHC_ALLOW_MEMIO
around that section in ahc_pci.c and can boot the system.
I also get the following messages (from the -current driver
in -stable):
ahc1:A:3: Message reject for 80 -- ignored
These repeat pretty fast while the machine boots and also
for a while after it has booted. There seem to be about
255 of them (dmesg | grep "Message reject" | wc -l). In
this system, there is nothing (not even a cable) attached
to ahc1.
Here are the 2 controllers:
pcib1: <RCC LE host to PCI bridge> on motherboard
pci1: <PCI bus> on pcib1
ahc0: <Adaptec 29160 Ultra160 SCSI adapter> port 0xe400-0xe4ff
mem 0xfebfe000-0xfebfefff irq 5 at device 2.0 on pci1
aic7892: Wide Channel A, SCSI Id=7, 32/255 SCBs
ahc1: <Adaptec aic7892 Ultra160 SCSI adapter> port 0xe800-0xe8ff
mem 0xfebff000-0xfebfffff irq 10 at device 3.0 on pci1
aic7892: Wide Channel A, SCSI Id=7, 32/255 SCBs
I'll see how the system holds up under load and get back to you
if I can crash it. If you have anything else you ant to try
in regards to memory-mapped IO or the message reject messages,
let me know.
--
Dan Eischen
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