Subject: Not so Ultra-ATA on an Ultra 10
To: 'port-sparc64@netbsd.org' <port-sparc64@netbsd.org>
From: Parkes, Lloyd <lloyd.parkes@eds.com>
List: port-sparc64
Date: 10/18/2002 10:54:47
I have a Promise Ultra66/ATA card in my Ultra 10 with a nice new Barracuda
ATA disk, and it still only runs at 33 MB/s. Before I dive into the code,
does anyone know what's going on?

Here is the dmesg output.

	pciide1 at pci2 dev 4 function 0: Promise Ultra66/ATA Bus Master IDE
Accelerator
 (rev. 0x01)
	pciide1: bus-master DMA support present
	pciide1: primary channel configured to native-PCI mode
	pciide1: using ivec 181c for native-PCI interrupt
	wd0 at pciide1 channel 0 drive 0: <ST380021A>
	wd0: drive supports 16-sector PIO transfers, LBA addressing
	wd0: 76319 MB, 16383 cyl, 16 head, 63 sec, 512 bytes/sect x
156301488 sectors
	wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5
(Ultra/100)
	wd0(pciide1:0:0): using PIO mode 4, Ultra-DMA mode 2 (Ultra/33)
(using DMA data transfers)


Cheers,
Lloyd