Re: disk numbering

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Tue, Mar 11, 2014 at 05:21:46PM +1300, Mark Davies wrote:
> I have a machine with both ahcisata and siisata that a GENERIC kernel 
> finds in this order:
> 
> siisata0 at pci2 dev 0 function 0: vendor 0x1095 product 0x3132 (rev. 
> 0x01)
> siisata0: interrupting at ioapic0 pin 18
> siisata0: SiI3132, 3.0Gb/s
> atabus0 at siisata0 channel 0
> atabus1 at siisata0 channel 1
>    [...]
> ahcisata0 at pci0 dev 31 function 2: vendor 0x8086 product 0x1c02 
> (rev. 0x04)
> ahcisata0: interrupting at ioapic0 pin 18
> ahcisata0: 64-bit DMA
> ahcisata0: AHCI revision 1.30, 6 ports, 32 slots, CAP 
> 0xe730ff45<EMS,PSC,SSC,PMD,ISS=0x3=Gen3,SCLO,SAL,SALP,SSNTF,SNCQ,S64A>
> atabus2 at ahcisata0 channel 0
> atabus3 at ahcisata0 channel 1
>     [...]
> wd0 at atabus1 drive 0
> wd0(siisata0:1:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 6 
> (Ultra/133) (using DMA)
> wd1 at atabus2 drive 0
> wd1(ahcisata0:0:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 6 
> (Ultra/133) (using DMA)
> atapibus0 at atabus3: 1 targets
> 
> 
> Whats the simplest config change to get the ahcisata attached 
> buses/drives to appear first in the ordering?

that would be:

ahcisata* at pci? dev ? function ?
atabus0 at ahcisata? channel 0
atabus1 at ahcisata? channel 1
[add more if you need ]
atabus* at ata?

wd0 at atabus0 drive 0
wd1 at atabus1 drive 0
[add more if you need]
wd* at atabus? drive ?

If
atabus0 at ahcisata? channel 0
doesn't work then try
ata0 at ahcisata? channel 0
atabus0 at ata0

instead (repeat for other hardwired channels)

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--