ahc aic7895 scsi on snapshot

[Adam Rogoyski <rogoyski_(_at_)_cs_(_dot_)_utexas_(_dot_)_edu>]

   Upon Booting the latest snapshot floppy.fs, the Adaptec aic-7895 is
detected and goes through some initialization, and then it loops for about
5 minutes doing this

	sd0(ahc1:6:0): SCB 0x1d - timed out while idle, SEQADDR == 0xf
	sd0(ahc1:6:0): Queuing a BDR SCB
	sd0(ahc1:6:0) Bus Device Reset Message Sent
	sd0(ahc1:0:0): no longer in timeout, status = 0
	ahc1: Bus Device Reset on A:6. 1 SCB, aborted

The dmesg buffer is filled with these, so I cannot copy the initial bootup
messages from this floppy, though this is the relevant bootup message
about the scsi controller which I was able to copy

ahc1 at pci0 dev 9 function 0 "Adaptec AIC-7895" rev 0x03: irq 11
ihc1: Illegal cable configuration!!. Only two connectors on the adapter
may be used at a time!
ahc1: Wide Channel A, SCSI Id=7, 16/255 SCBs
scsibus0 at ahc1: 16 targets
ahc1:A:6: refuses WIDE negotiation.  Suing 8bit transfers
ahc1: target 6 using 8bit transfers
ahc1: board is not responding
cmd fail

   Then it goes on to have more errors as it detects the second
channel, until it begins to loop over the bus device reset error.  The
message about the cable configuration is somewhat confusing.

  This output from floppyB.fs is as follows

OpenBSD 2.6-current (RAMDISKB) #2: Thu Mar 30 13:55:49 MST 2000
    deraadt_(_at_)_i386_(_dot_)_openbsd_(_dot_)_org:/usr/src/sys/arch/i386/compile/RAMDISKB
cpu0: Intel Pentium II ("GenuineIntel" 686-class, 512KB L2 cache) 333 MHz
cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SYS,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR
real mem  = 268021760 (261740K)
avail mem = 244215808 (238492K)
using 3297 buffers containing 13504512 bytes (13188K) of memory
mainbus0 (root)
bios0 at mainbus0: AT/286+(c6) BIOS, date 07/31/98
apm0 at bios0: Power Management spec V1.2
pci0 at mainbus0 bus 0: configuration mode 1 (no bios)
pchb0 at pci0 dev 0 function 0 "Intel 82443LX PCI-AGP (PAC)" rev 0x03
ppb0 at pci0 dev 1 function 0 "Intel 82443LX AGP (PAC)" rev 0x03
pci1 at ppb0 bus 1
"ATI Technologies Rage Pro" rev 0x5c at pci1 dev 0 function 0 not configured
"Intel 82371AB PIIX4 ISA" rev 0x01 at pci0 dev 2 function 0 not configured
pciide0 at pci0 dev 2 function 1 "Intel 82371AB IDE (PIIX4)" rev 0x01: DMA, channel 0 wired to compatibility, channel 1 wired to compatibility
pciide0: channel 0 ignored (disabled)
pciide0: channel 1 ignored (disabled)
"Intel 82371AB USB (PIIX4)" rev 0x01 at pci0 dev 2 function 2 not configured
"Intel 82371AB Power Management (PIIX4)" rev 0x01 at pci0 dev 2 function 3 not configured
"Adaptec AIC-7895" rev 0x03 at pci0 dev 9 function 0 not configured
"Adaptec AIC-7895" rev 0x03 at pci0 dev 9 function 1 not configured
rl0 at pci0 dev 14 function 0 "Realtek 8139" rev 0x10: irq 10 address 00:e0:7d:70:68:6e
rlphy0 at rl0 phy 0: RTL internal phy
"Ensoniq AudioPCI" rev 0x01 at pci0 dev 16 function 0 not configured
isa0 at mainbus0
isadma0 at isa0
<3>stray interrupt 7
npx0 at isa0 port 0xf0/16: using exception 16
pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
pccom1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo
vt0 at isa0 port 0x60/16 irq 1: vga 80 col, color, 8 scr, mf2-kbd
fdc0 at isa0 port 0x3f0/6 irq 6 drq 2
fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec
biomask 40 netmask 440 ttymask 442
rd0: fixed, 3560 blocks
rootdev=0x1100 rrootdev=0x2f00 rawdev=0x2f02

The machine has an Intel DK440LX board with dual PII 333, 256 megs of ram,
an onboard aic-7895 SCSI (Bios v1.34S1 - iDK5) with this configuration

	Ch A, SCSI ID: 6 IBM  DDRS-39130     (9.0 gig drive)
	Ch B, SCSI ID: 3 TEAC CD-ROM CD-532S (32X cdorm)
	      SCSI ID: 4 Seagate STT8000N    (4.0/8.0 gig caravan tape)

   Adam