kern/104799: Several ata observations ICH8 BIOS

[Helmut Schellong]

>Number:         104799
>Category:       kern
>Synopsis:       Several ata observations ICH8 BIOS
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Oct 25 13:50:18 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator:     Helmut Schellong
>Release:        6.2 BETA2
>Organization:
>Environment:
6.2 BETA2
>Description:
A)

atapci1: <Intel ICH8 SATA300 controller>
atapci2: <Intel ICH8 SATA300 controller>
ad8: 29314MB <IBM DTLA-307030 TX4OA60A> at ata4-master UDMA100
acd0: DVDR <PLEXTOR DVDR PX-760A/1.03> at ata4-slave UDMA66
ad10: 476940MB <WDC WD5000YS-01MPB0 07.02E07> at ata5-master SATA150
SMP: AP CPU #1 Launched!
Trying to mount root from ufs:/dev/ad8s2a

104]  atacontrol info ata5
Master: ad10 <WDC WD5000YS-01MPB0/07.02E07> Serial ATA II
Slave:       no device present
106]  atacontrol mode ad10
current mode = SATA150
107]  atacontrol mode ad10 sata300
current mode = SATA150

108]  man atacontrol
        Currently supported modes are: PIO0, PIO1, PIO2, PIO3, PIO4,
        WDMA2, UDMA2 (alias UDMA33), UDMA4 (alias UDMA66), UDMA5 (alias
        UDMA100) and UDMA6 (alias UDMA133).
No SATA modes shown.
SATA300 not supported.

B)

BIOS: ICH8 full enabled: SATA1 .. 6: First disk SATA1 is /dev/ad10
      ICH8 compatible  : SATA1 .. 4: First disk SATA1 is /dev/ad0
Experimental/test disk on JMicron363 is always /dev/ad8.

C)

A kernel with atapicam hangs.

>How-To-Repeat:
Is a state.
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted: