Date: Mon, 15 Feb 1999 12:48:57 -0500 From: Doug Ledford <dledford@redhat.com> To: "Kenneth P. Persing" <ken@intac.com> Cc: "aic7xxx@FreeBSD.ORG" <aic7xxx@FreeBSD.ORG> Subject: Re: aic7xxx v. 5.1.11 on 2.2.1 broken for plain old vanilla 2940. Message-ID: <36C85E09.34A9583@redhat.com> References: <36C7147D.B9CD7E69@intac.com>
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"Kenneth P. Persing" wrote:
>
> Hey folks,
> If I have missed something obvious, please let me know (like if
> there has been a fundamental change in the way the aic7xxx driver works
> between 5.1.10 and 5.1.11, and the it is necessary to pass it a command
> from the kernel, or the like). However, I am running a plain old 2940
> with three scsi harddrives. Two Seagate ST32430N 2 gig harddives, and
> one Connor CFP2105S. It also has a tandberg tape drive, a plextor 12x,
> and an hp cd writer. I've been using all the 2.2.0 pre kernels, and
> everything has worked fine. After I got 2.2.1, before compiling it, I
> upgraded the aic7xxx driver from 5.1.10 to 5.1.11. Everything began
> booting fine. It mounted all the drives on my system, but after initd
> loaded, and it entered runlevel 5, when it began to load the system
> loggers the scsi bus froze. The led hooked up to the 2940 went on solid,
> but the HD lights were all off. I then entered an endless loop of scsi
> timeout, and attempted bus resets.
> Believing this was a problem with my hardware, I then began checking
> the termination on all of my devices, the termination was all correct. I
> then disconnected every device but one hard drive (I turned on the
> termination of that drive and put in last on the cable) Time out errors
> still plagued me. I've done these test on both a 2940 with bios
> revision 1.11 and 1.16, same problem. However, previously, running 5.1.9
> everything has worked great, similarly when I compiled the 2.2.1 kernel
> without upgrading the aic driver from 5.1.10 to 5.1.11, it worked also.
> This all leads me to believe that something has changed between
> revisions 5.1.10 and 5.1.11 that messes up the support for the plain old
> 2940.
>
> If you have any questions about my system, or if there are any other
> tests you would like me to run to help fix this problem, please let me
> know.
Try the attached patch. If it helps, then please send me the output of "cat
/proc/pci" on your system.
--
Doug Ledford <dledford@redhat.com>
Opinions expressed are my own, but
they should be everybody's.
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--- linux/drivers/scsi/aic7xxx.c.old Mon Feb 15 12:46:41 1999
+++ linux/drivers/scsi/aic7xxx.c Mon Feb 15 12:47:36 1999
@@ -9219,7 +9219,7 @@
* on the 789x cards. Also, read the SEEPROM as well.
*/
aic_outb(temp_p, (aic_inb(temp_p, DSCOMMAND0) |
- CACHETHEN | MPARCKEN) & ~DPARCKEN,
+ DPARCKEN | MPARCKEN) & ~CACHETHEN,
DSCOMMAND0);
case AHC_AIC7895:
aic7xxx_load_seeprom(temp_p, &sxfrctl1);
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