From owner-freebsd-hardware  Wed Jan 13 13:39:13 1999
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Date: Wed, 13 Jan 1999 15:37:37 -0600
From: David Webster <dwebster@bhmi.com>
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Subject: Promise Ultra DMA PCI Disk Controller
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Well, it appears I have my answer.  FreeBSD does not support it.  While
the kernel will find this device it will not poll Tertiary drive
controllers for attached drives.  The only option is to enable the
on-board (non Ultra DMA controller) and attach the harddrive to it.
Unfortunately you lose all the Ultra-DMA performance of your drive.
Added to that, this is a dual boot system with Windows NT which expects
to find the drive on the Promise controller.

Since this configuration represents over a year of Gateway PC shipments
I find it rather unusual that FreeBSD does not support this or any other
Terteiary drive contrllers.  With upcoming advent of Ulrta-DMA2 look for
many PC vendors to use Tertiary controllers to get 66Mbit/sec throughput
performance before they are integrated into motherboards.  If I knew how
modify the kernel's code to poll Tertiary controllers I would, but I
don't.


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