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Umm, from the last time I saw the intel docs:

processor bus-------------------------------
					|
					|
				pci chipset ------- IDE
					|
				 ide bus
					|
					the ISA bridge


- -Dave

> -----Original Message-----
> From: port-i386-owner@netbsd.org [mailto:port-i386-
owner@netbsd.org]On
> Behalf Of Bernd Sieker
> Sent: Wednesday, December 02, 1998 11:12 AM
> To: port-i386@netbsd.org
> Subject: IDE interface at PCI bus?
> 
> 
> 
> Hi,
> 
> again one of those stupid hardware quastions...
> 
> I use NetBSD-1.3.2.
> 
> As most more recent PCs my board has 2 (E)IDE interfaces onboard,
> supposedly connected via the PCI bus.
> 
> However, the kernel configuration file does not have options for 
ide
> buses at pci, and although the kernel detects it like: 
> 
>   vendor 0x1106 product 0x0571 (IDE mass storage, interface 0x8a,\
> 	revision 0x06) at pci0 dev 7 function 1 not configured
> 
> it still configures only wdc0 at isa0 port 0x1f0-0x1f7 irq 14.
> 
> Does this have any meaning for performance, or is it just that the 
IDE
> interface resides "logically" on the ISA bus?
> 
> My board also supports UDMA/33 transfers, but NetBSD only uses:
>   wd0: using 16-sector 16-bit pio transfers, lba mode
> 
> I'm not an expert in PC hardware, so maybe anyone could clarify the
> situation here? I did not find anything in the FAQs.
> 
> -- 
> Bernd Siek
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