kern/42310: Intel SCH IDE DMA support

[tharada%oucrc.org@localhost]

>Number:         42310
>Category:       kern
>Synopsis:       Intel SCH IDE DMA support
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Nov 13 12:25:00 +0000 2009
>Originator:     Tomokazu HARADA
>Release:        5.99.21, 5.0_STABLE
>Organization:
>Environment:
NetBSD fit.md.ayatan.org 5.0_STABLE NetBSD 5.0_STABLE (GENERIC) #2: Mon Nov  9 
04:23:59 JST 2009  root@xjazz:/usr/src-5/sys/arch/i386/compile/obj/GENERIC i386

>Description:
Intel SCH IDE UDMA100 support (from OpenBSD)

schide0 at pci0 dev 31 function 1
schide0: Intel SCH IDE Controller (rev. 0x07)
schide0: bus-master DMA support present
schide0: primary channel wired to compatibility mode
schide0: primary channel interrupting at ioapic0 pin 14
atabus0 at schide0 channel 0
wd0 at atabus0 drive 0: <INTEL SSDSA2M080G2GC>
wd0: drive supports 16-sector PIO transfers, LBA48 addressing
wd0: 76319 MB, 155061 cyl, 16 head, 63 sec, 512 bytes/sect x 156301488 sectors
wd0: 32-bit data port
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133)
wd0(schide0:0:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100) 
(using DMA)

>How-To-Repeat:
N/A
>Fix:
http://tharada.oucrc.org/schide/