PowerUP SCSI driver.

[F. H. <fh...@at...>]

I'm still at a loss to figure out why the cache test
is failing on the 53c770.c driver.  I have been comparing
the code in 53C770.c with that in the SYM53X8XX.c driver
and the ncr_snooptest() routines are pretty much the same.

Perhaps one of you that has worked on SCSI drivers can
help me understand what is happening?

From looking at the code it seems like the ncr_snooptest()
is copying the SCSI scripts code to the cache and then
trying to execute that code.  Since that execution fails
the cache test fails. 

The first dmesg output is one in which the return statements
in the ncr_snooptest() are commented out in order to allow
what looks like debugging code at the end of the routine
to execute.  Assuming that is what's happening shows that
the scripts are not executing.  The second dmesg output is
showing what happens with the return statements back in
their proper place.

Fred

Searching for SAVEKMSG magic...
Found 2666 bytes at 0x001e0008
>>>>>>>>>>>>>>>>>>>>
Total memory = 64MB; using 256kB for hash table (at c0200000)
Linux version 2.2.10 (root@amiga1) (gcc version 2.95.2 19991024 (release)) #17 Sun Jun 25 15:14:43 EDT 2000
Amiga hardware found: [A4000T] VIDEO BLITTER AUDIO FLOPPY A4000_SCSI A4000_IDE KEYBOARD MOUSE SERIAL PARALLEL A3000_CLK CHIP_RAM PAULA LISA ALICE_NTSC ZORRO3 
APUS: BATs=0, BUS=66MHz, RAM=70ns, PCI bridge=1
time_init: decrementer frequency = 990000000/60
Console: colour dummy device 80x25
Calibrating delay loop... 395.67 BogoMIPS
Memory: 62156k available (1220k kernel code, 1536k data, 112k init) [c0000000,c4000000]
POSIX conformance testing by UNIFIX
Zorro: Probing AutoConfig expansion devices: 5 devices
Linux NET4.0 for Linux 2.2
Based upon Swansea University Computer Society NET3.039
NET4: Unix domain sockets 1.0 for Linux NET4.0.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCPCStarting kswapd v 1.5 
CV3D detected running in Z3 mode
Console: switching to colour frame buffer device 160x64
fb0: Cybervision/3D frame buffer device, using 4096K of video memory
fb1: Amiga AGA frame buffer device, using 1280K of video memory
**** apus_kbd_init_hw
M68K Serial driver version 1.01
ttyS0 at 0x80dff018: Amiga builtin
pty: 256 Unix98 ptys configured
lp_init: lp using interrupt driver
lp0: Builtin parallel port at 0x80bfe101
Amiga mouse installed.
DMA sound driver installed, using 4 buffers of 32k.
RAM disk driver initialized:  16 RAM disks of 4096K size
loop: registered device at major 7
ide0: Gayle IDE interface (A4000 style)
hda: ST34342A, ATA DISK drive
ide0 at 80dd2020 on irq 0x0000000c
hda: ST34342A, 4103MB w/128kB Cache, CHS=8894/15/63
FD: probing units
fouod <5>fd: drive 0 didn't identify, setting default ffffffff
fd0 fd1 
scsi-ncr53c7xx : NCR53c710 at memory 0x80dd0040, io 0x0, irq 12
scsi0: Revision 0x1
scsi0 : NCR code relocated to 0xbf365e8 (virt 0xc3f365e8)
scsi0 : test 1 started
ncr53c8xx: 53c770 detected 
ncr53c770-0: rev=0x00, base=0xf40000, io_port=0x0, irq=12
Peparing...
stuff: 0 0 0 0 0
set verbose:
myaddr: 0
myaddr: 0
myaddr: 7
ncr53c770-0: ID 7, Fast-20, Parity Checking
ncr53c770-0: initial SCNTL3/DMODE/DCNTL/CTEST3/4/5 = (hex) 00/00/00/00/00/00
ncr53c770-0: final   SCNTL3/DMODE/DCNTL/CTEST3/4/5 = (hex) 05/82/20/00/08/24
NCR_IOMAPPED
BIG_ENDIAN
istat: 0
SCSI reset
istat: 40
istat: 0
istat: c3f30000, i: 1000000 TO: 1000000
ncr_snooptest(): CACHE TEST FAILED: timeout.
CACHE TEST FAILED: script execution failed.
start=0bf32e28, pc=00000bf3, end=0bf32e54
040000c1 ec00f30b
3400f400 040000c1
1c00f400 ec00f30b
040000c1 ec00f30b
1c00f400 00000898
63000000 00000000
00000000 00000000
00000000 00000000
00000000 00000000
00000000 00000000
<<<<<<<<<<<<<<<<<<<<

dmesg output # two:

Total memory = 64MB; using 256kB for hash table (at c0200000)
Linux version 2.2.10 (root@amiga1) (gcc version 2.95.2 19991024 (release)) #21 Sun Jun 25 15:46:29 EDT 2000
Amiga hardware found: [A4000T] VIDEO BLITTER AUDIO FLOPPY A4000_SCSI A4000_IDE KEYBOARD MOUSE SERIAL PARALLEL A3000_CLK CHIP_RAM PAULA LISA ALICE_NTSC ZORRO3 
APUS: BATs=0, BUS=66MHz, RAM=70ns, PCI bridge=1
time_init: decrementer frequency = 990000000/60
Console: colour dummy device 80x25
Calibrating delay loop... 395.67 BogoMIPS
Memory: 62156k available (1220k kernel code, 1536k data, 112k init) [c0000000,c4000000]
POSIX conformance testing by UNIFIX
Zorro: Probing AutoConfig expansion devices: 5 devices
Linux NET4.0 for Linux 2.2
Based upon Swansea University Computer Society NET3.039
NET4: Unix domain sockets 1.0 for Linux NET4.0.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
Starting kswapd v 1.5 
CV3D detected running in Z3 mode
Console: switching to colour frame buffer device 160x64
fb0: Cybervision/3D frame buffer device, using 4096K of video memory
fb1: Amiga AGA frame buffer device, using 1280K of video memory
**** apus_kbd_init_hw
M68K Serial driver version 1.01
ttyS0 at 0x80dff018: Amiga builtin
pty: 256 Unix98 ptys configured
lp_init: lp using interrupt driver
lp0: Builtin parallel port at 0x80bfe101
Amiga mouse installed.
DMA sound driver installed, using 4 buffers of 32k.
RAM disk driver initialized:  16 RAM disks of 4096K size
loop: registered device at major 7
ide0: Gayle IDE interface (A4000 style)
hda: ST34342A, ATA DISK drive
ide0 at 80dd2020 on irq 0x0000000c
hda: ST34342A, 4103MB w/128kB Cache, CHS=8894/15/63
FD: probing units
found <5>fd: drive 0 didn't identify, setting default ffffffff
fd0 fd1 
scsi-ncr53c7xx : NCR53c710 at memory 0x80dd0040, io 0x0, irq 12
scsi0: Revision 0x1
scsi0 : NCR code relocated to 0xbf365e8 (virt 0xc3f365e8)
scsi0 : test 1 started
Trying to detect PuP SCSI...
ncr53c8xx: 53c770 detected 
ncr53c770-0: rev=0x00, base=0xf40000, io_port=0x0, irq=12
Storing input
np: ID: 770 REV: 0 FEA: 15382 CLCK: 5 OF: 16
Initialize timer
paddr: 15990784 paddr2: 0
port: 0
Peparing...
stuff: 0 0 0 0 0
set verbose:
myaddr: 0
myaddr: 0
myaddr: 7
ncr53c770-0: ID 7, Fast-20, Parity Checking
verbose:5
ncr53c770-0: initial SCNTL3/DMODE/DCNTL/CTEST3/4/5 = (hex) 00/00/00/00/00/00
ncr53c770-0: final   SCNTL3/DMODE/DCNTL/CTEST3/4/5 = (hex) 05/82/20/00/08/24
no on-board ram
NCR_IOMAPPED
BIG_ENDIAN
Resetting for snoop test
offset: c
istat: 0
SCSI reset
istat: 40
istat: 0
ncr_cache: 1000000 pc: bf32e28
ncr_snooptest(): CACHE TEST FAILED: timeout.
CACHE INCORRECTLY CONFIGURED.
ncr53c770-0: detaching...
scsi0 : Amiga NCR53c710 SCSI
scsi : 1 host.
scsi0 : target 2 accepting period 200ns offset 8 5.00MHz synchronous SCSI
scsi0 : setting target 2 to period 200ns offset 8 5.00MHz synchronous SCSI
  Vendor: TOSHIBA   Model: CD-ROM XM-6201TA  Rev: 1037
  Type:   CD-ROM                             ANSI SCSI revision: 02
Detected scsi CD-ROM sr0 at scsi0, channel 0, id 2, lun 0
scsi0 : target 5 accepting period 204ns offset 8 4.90MHz synchronous SCSI
scsi0 : setting target 5 to period 208ns offset 8 4.80MHz synchronous SCSI
  Vendor: WANGTEK   Model: 51000  SCSI REV7  Rev: 3J  
  Type:   Sequential-Access                  ANSI SCSI revision: 01
Detected scsi tape st0 at scsi0, channel 0, id 5, lun 0
scsi : detected 1 SCSI tape 1 SCSI cdrom total.
Uniform CDROM driver Revision: 2.55
PPP: version 2.3.7 (demand dialling)
TCP compression code copyright 1989 Regents of the University of California
PPP line discipline registered.
eth0: Ariadne at 0x00ea0000, Ethernet Address 00:60:30:00:10:01
Partition check:
 hda: RDSK hda1 hda2 hda3 hda4 hda5
VFS: Mounted root (ext2 filesystem) readonly.
Freeing unused kernel memory: 112k init 32k prep 4k pmac 8k open firmware
Adding Swap: 73840k swap-space (priority -1)
scsi0 : datain+dataout for command VENDOR SPECIFIC(0xc7) 03 00 00 00 00 00 00 00 00 
53c7xx: Non-aligned buffer with datain && dataout
VFS: Disk change detected on device sr(11,0)
Unable to identify CD-ROM format.
-- 
Fred