Date: Fri, 3 Mar 2000 18:27:54 -0800 (PST) From: larse@isi.edu To: freebsd-gnats-submit@FreeBSD.org Subject: kern/17173: 4.0-20000214-CURRENT: ata with Intel ICH ATA-66 -> UDMA33 Message-ID: <200003040227.SAA90101@freefall.freebsd.org>
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>Number: 17173
>Category: kern
>Synopsis: 4.0-20000214-CURRENT: ata with Intel ICH ATA-66 -> UDMA33
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Fri Mar 3 18:30:01 PST 2000
>Closed-Date:
>Last-Modified:
>Originator: Lars Eggert
>Release: 4.0-20000214-CURRENT
>Organization:
USC Information Sciences Institute
>Environment:
FreeBSD hbo.isi.edu 4.0-20000214-CURRENT FreeBSD 4.0-20000214-CURRENT #4: Thu Feb 24 16:47:59 PST 2000 root@pub.isi.edu:/usr/src/sys/compile/PRECISION i386
>Description:
For some reason, the ata driver only supports UDMA33 on an Intel ICH
ATA-66 controller together with an IBM-DPTA-372730 drive. Both drive
and controller should be UDMA66-capable.
The relevant lines from dmesg:
[hbo: /usr/src/sys] dmesg | grep ata
ata-pci0: <Intel ICH ATA-66 controller> port 0xffa0-0xffaf at device 31.1 on pci0
ata0 at 0x01f0 irq 14 on ata-pci0
ata1 at 0x0170 irq 15 on ata-pci0
ad0: 26105MB <IBM-DPTA-372730> [53040/16/63] at ata0-master using UDMA33
acd0: CD-RW <SONY CD-RW CRX140E> at ata1-master using UDMA33
The relevant lines from my kernel config file:
device ata
device atadisk # ATA disk drives
device atapicd # ATAPI CDROM drives
options ATA_STATIC_ID #Static device numbering
options ATA_ENABLE_ATAPI_DMA #Enable DMA on ATAPI devices
I saw this note in ata(4):
Remember that in order to use UDMA4 mode you have to use a special 80
conductor cable, and the driver tries to determine if you have such a ca-
ble attached before setting UDMA4 mode.
I'm *assuming* our machine has such a cable (it's a brand-new Dell
workstation) - in any case, how do I verify that?
Thanks,
Lars
>How-To-Repeat:
n/a
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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