Subject: Re: Support for PS/2 esdi disks in bootblocks
To: Rafal Boni <rafal@mediaone.net>
From: Jason R Thorpe <thorpej@zembu.com>
List: port-i386
Date: 05/05/2001 13:04:23
On Sat, May 05, 2001 at 02:59:02PM -0400, Rafal Boni wrote:

 > -> Hmm, true. Default wd(4) disklabel uses DTYPE_ESDI for disks
 > -> not identified as ST506. Perhaps a change to also check for
 > -> MCA bus presence would do? The assembler code for that check
 > -> would be next ~700 bytes however (slighly modified stand/lib/biosmca.S).
 > 
 > Hmm, that's a hard call... 700 bytes seems like a lot of bloat to add to
 > the boot blocks just to figure out if those disks were on an ISA EDSI card
 > or an MCA ESDI card.  I'd hate to force the case of having an ESDI boot 
 > disk to automatically imply it's hanging off an MCA ESDI controller.

For PCI, the bootinfo has bus/device/function info, right?  How about
a similar thing for the MCA?

-- 
        -- Jason R. Thorpe <thorpej@zembu.com>