Date: Fri, 10 Sep 1999 13:42:59 -0600 From: "Justin T. Gibbs" <gibbs@caspian.plutotech.com> To: Andrew Gallatin <gallatin@cs.duke.edu> Cc: scsi@freebsd.org, gibbs@freebsd.org, anderson@cs.duke.edu Subject: Re: data corruption when using aic7890 Message-ID: <199909101942.NAA02899@caspian.plutotech.com> In-Reply-To: Your message of "Tue, 07 Sep 1999 16:00:38 EDT." <14293.26481.521753.519004@grasshopper.cs.duke.edu>
next in thread | previous in thread | raw e-mail | index | archive | help
> >Hi, > >I have a bunch of ASUS P2B-LS motherboards with on-board AIC7890 U2 >controllers. I'm running a kernel with rev 1.20 of >src/sys/pci/ahc_pci.c (eg, after the CACHETHEN fix). Can you see if this has any effect on your problem? This is the setting left over from the BIOS on my systems here. I would expect the best performance to be a setting of RD_DFTHRSH_MIN|WR_DFTHRSH_100 but lets try this first. -- Justin ==== //depot/FreeBSD-current/src/sys/pci/ahc_pci.c#22 - /usr/src/sys/pci/ahc_pci.c ==== *** /tmp/tmp.2882.0 Fri Sep 10 13:36:27 1999 --- /usr/src/sys/pci/ahc_pci.c Fri Sep 10 13:35:34 1999 *************** *** 826,832 **** * and 75% on ULTRA2 controllers. */ if ((ahc->features & AHC_ULTRA2) != 0) { ! ahc_outb(ahc, DFF_THRSH, RD_DFTHRSH_75|WR_DFTHRSH_75); } else { ahc_outb(ahc, DSPCISTATUS, DFTHRSH_100); } --- 826,832 ---- * and 75% on ULTRA2 controllers. */ if ((ahc->features & AHC_ULTRA2) != 0) { ! ahc_outb(ahc, DFF_THRSH, RD_DFTHRSH_MIN|WR_DFTHRSH_MIN); } else { ahc_outb(ahc, DSPCISTATUS, DFTHRSH_100); } To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199909101942.NAA02899>