Date: Tue, 3 Dec 2002 17:13:07 -0800 From: Marcel Moolenaar <marcel@xcllnt.net> To: =?iso-8859-1?Q?S=F8ren?= Schmidt <sos@FreeBSD.org> Cc: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Serializing ATA channels [was: Re: cvs commit: src/share/man/man4 ata.4] Message-ID: <20021204011307.GA915@athlon.pn.xcllnt.net> In-Reply-To: <200212032018.gB3KI1Ib074157@repoman.freebsd.org> References: <200212032018.gB3KI1Ib074157@repoman.freebsd.org>
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On Tue, Dec 03, 2002 at 12:18:01PM -0800, Søren Schmidt wrote:
> sos 2002/12/03 12:18:01 PST
>
> Modified files:
> share/man/man4 ata.4
> Log:
> Add support for the PC98 platform to the ATA driver.
> This mostly consists of functionality to serialize accesses to
> the two ATA channels (which can also be used to "fix" certain
> PCI based controllers).
I have an ATA controller that Linux marks as having a bug and
serializes both channels as a way to work around the bug. Given
the added functionality, am I right in assuming that we can
do the same in a pretty straightforward way?
Some details (for fun):
FreeBSD 5.0-CURRENT #147: Fri Nov 29 21:44:17 PST 2002
marcel@mckinley.pn.xcllnt.net:/nfs/p4/ia64/sys/ia64/compile/HP_RX2600
:
atapci0: <CMD 649 ATA100 controller> port 0xd40-0xd4f,0xd60-0xd63,0xd50-0xd57,0xd64-0xd67,0xd58-0xd5f irq 21 at device 2.0 on pci0
ata2: at 0xd58 on atapci0
ata3: at 0xd50 on atapci0
:
ata2-slave: timeout waiting for interrupt
ata2-slave: ATAPI identify failed
:
acd0: DVD-ROM <DV-28E-B> at ata2-master PIO4
mckinley% sudo atacontrol info 1
mckinley% sudo atacontrol info 2
Master: acd0 <DV-28E-B/2.2B> ATA/ATAPI rev 5
Slave: no device present
mckinley% sudo atacontrol info 3
Master: no device present
Slave: no device present
--
Marcel Moolenaar USPA: A-39004 marcel@xcllnt.net
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