RE: IDE Card

["Mark W. Knecht" <mknecht controlnet com>]

Hi,
   The two devices are sharing more than an interrupt. They are the same
chip!! Notice that your Linux information is telling you Bus 0, Device, 14,
Function 0 & 1. This is what's known as a multi-function PCI device. This is
a 'dual-channel' controller.

   Generally speaking, at least in the Windows world, both controller will
be handled by the same device driver. The driver takes and interrupt, looks
at the first controller and then the second controller to see which one
interrupted, and then services either one or both. In the Linux world I
don't know this stuff at that level of detail, but any Intel chipset today
is multi-function also, so that shouldn't be any different except it's
ATA66/100.

   I went through the ATA-100 thing recently on my Windows box. Cable Select
is recommended. If you go this way, then make sure your drives are at the
end of the cable (master) and the CDs are in the middle. (slaves) Also,
ATA-100 (and maybe 66) are a different cable than the old EIDE drives. Your
controller probably provided new cables.

   I think it was Matt Drew who recently (maybe 2 months ago?) posted some
info on getting ATA to work with anything pre-7.1, but I could be wrong
about that. Possibly something in the archives or on Google.

Good luck,
Mark

-----Original Message-----
From: redhat-install-list-admin redhat com
[mailto:redhat-install-list-admin redhat com]On Behalf Of Richard
Sent: Thursday, June 28, 2001 12:10 PM
To: redhat-install-list redhat com
Subject: Re: IDE Card


I have seen something similar with an attached card.  I believe the two
IDE ports are simply sharing the same interrupt and will be able to keep
your devices separate.  I read somewhere (an Anandtech article, if I
recall) that it identifies as a SCSI device so it can be found in the
boot-up sequence of your BIOS but functions as an IDE controller
regardless.  That is, how it is identified and how it is used seem not
to necessarily be intrisically related.  I think Triones Technologies is
an identifier for a Highpoint chip.  I also read just recently that the
80-wire cable used with ATA66/100 devices is "cable-specific," that is,
it separates the devices.   I have seen one document that insists that
the drives should be jumpered as "cable select" rather than as master
and slave as that determination would be made by the cable and card.  I
tried this with my setup and saw no difference that I could attribute to
it, and it was working fine before, so... I went back to the original
jumpers.  Another article suggested (referencing raid really) that the
original higher performance speeds were SCSI and have merely been
adapted for IDE and this is the reason they are identified as SCSI but
function as IDE.  So far as this goes, I merely report.  I don't think
Linux will have a problem here.  The drives will be identified as
(assuming you have two IDE controllers on board) hde, hdf, hdg, hdh, in
the usual order: first or primary controller on the card, master and
slave, then the secondary.  I would put the drives on separate cables if
they are different speeds as I read somewhere that two drives on the
same cable, of different speeds, will cause the system to fall back to
the slower speed for both.  Richard
"Mugleston, Brad" wrote:
>
> I installed a new PCI - IDE controller so I could have both a CD player
and
> a CD writer.  I've gotten a lot of help from this list and now I can ask
my
> question with greater knowledge and a little understanding.
>
> Under Windows it installed as SCSI controller.  It's a SIIG UltraATA
66PCI.
> Under the windows resources screen it shows that it
> uses:
>
> IRQ 11
> I/O:DCD8h-DCDFh
> I/O:DCD0h-DCD3h
> I/O:D800h-D8FFh
> and
> IRQ 11
> I/O:DCC8h-DCCFh
> I/O:DCD4h-DCD7h
> I/O:D400h-D4FFh
>
> If I look at my /proc/pci file I get the following:
>
>  Bus  0, device  14, function  0:
>     Unknown mass storage controller: Triones Technologies, Inc. Unknown
> device (rev 1).
>       Vendor id=1103. Device id=4.
>       Medium devsel.  IRQ 11.  Master Capable.  Latency=248.  Min
Gnt=8.Max
> Lat=8.
>       I/O at 0xdcd8 [0xdcd9].
>       I/O at 0xdcd0 [0xdcd1].
>       I/O at 0xd800 [0xd801].
>   Bus  0, device  14, function  1:
>     Unknown mass storage controller: Triones Technologies, Inc. Unknown
> device (rev 1).
>       Vendor id=1103. Device id=4.
>       Medium devsel.  IRQ 11.  Master Capable.  Latency=248.  Min
Gnt=8.Max
> Lat=8.
>       I/O at 0xdcc8 [0xdcc9].
>       I/O at 0xdcd4 [0xdcd5].
>       I/O at 0xd400 [0xd401].
>
> To me these look like the same device.  If so, how do I get Linux (RH 6.0)
> to recognize my two CD's?  It doesn't have to run as an ULTRA anything I
am
> just trying to get my CD's to work the hard drive is attached to the IDE
> port on the motherboard.  I don't have time to upgrade to RH 7.1 (maybe in
> August) but I would really like to backup my hard drive BEFORE I do the
> upgrade as everything is working fantastic right now (other than I can't
use
> my CD's).
>
> I need some basic instruction  (step by step if possible, I'm way above my
> abilities here).
>
> Brad
>
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