[LV] TURBOchannel support -- success!

Thu Feb 22 22:41:47 CET 2007

Hello,

 The list seems to have been rather silent recently.  But in case there 
are still readers out there I am pleased to announce initial success with 
porting TURBOchannel support to the VAXstation 4000/90 equipped with the 
DWCTX adapter.  A moderately easy addition of this support has been 
enabled by the recent rewrite of the TURBOchannel bus support to the 
driver model which is as of 2.6.21-rc1 available upstream now.  Here is a 
bootstrap log from my system using a PMAD-A Ethernet adapter for the 
interface used for NFS-root.  This board uses PIO transactions only, but 
my experiments with some other boards show DMA works correctly as well.  
Unfortunately the DMA API is currently unsupported, so using a card like 
one of the DEFTA variations is not possible out of the box.

 Comments are welcome, especially ones to provide incentive for more work 
in this area. ;-)

  Maciej

>>> show config

KA49-A V1.0-006-V4.0
08-00-2B-30-96-D8
128MB

DEVNBR    DEVNAM           INFO
------    --------    --------------------------
     1         NVR    OK
     2       LCSPX    OK
                      Highres 72Hz - 8 Plane 4Mpixel FB - V1.0 
     3          DZ    OK
     4       CACHE    OK
     5         MEM    OK
                      128MB   0A,0B,0C,0D=16MB, 1E,1F,1G,1H=16MB 
     6         FPU    OK
     7          IT    OK
     8         SYS    OK
     9          NI    OK
    10        SCSI    OK
                      6-INITR    
    11         AUD    OK
    13         TCA    OK
                       OPT PRS    V1.0 

>>> boot eza0

-EZA0

* ** Welcome to Linux on VAX ** *

CPU type: KA49 SID: 0x13000202 SIDEX: 0x04010002
Boot Head.S loaded at address 0x00006600
rpb/bootr5/ap/sp  0x00000000 0x00000000 0x00000EC0 0x00006400
relocated at phys address 0x0010028A

Starting VM
Early console enabled
Linux/VAX <linux-vax at pergamentum.com>
RPB info: .l_pfncnt=0x0003fd6d, .l_vmb_version=0x13000100, .l_badpgs=0x00000000
Physical memory: 0x0003fd6d HW pagelets, 0x00007fad pages (130742KB)
CPU type: KA49, SID: 0x13000202, SIDEX: 0x04010002
VM: mapped physical from 0x80000000 to 0x87fada00, iomap from 87fae000
VM: vmalloc from 0x8ffae000 to 0x903ae000
VM: ptemap from 0x903ae000 to 0x928ae000 for 64 processes
Calling start_kernel()...

Linux version 2.6.18 (macro at ca.ds2.pg.gda.pl) (gcc version 4.0.1) #2 Sun Jan 28 06:27:56 GMT 2007
kernel_cmd_line 80006604
ip=bootp rw nfsroot=,rsize=1024,wsize=1024 console=ttyS3 debug panic=60
VAXMM: Initialising mm layer for 64 tasks of size 64MB
VAXMM: system page table base 8038c200, length (bytes)   2515c0 length (PTEs)    94570
bootmap size = 00000ff8
Calling free_bootmem(start=00001000, len=000ff000)
Calling free_bootmem(start=005de000, len=079cf000)
Built 1 zonelists.  Total pages: 32685
Kernel command line: ip=bootp rw nfsroot=,rsize=1024,wsize=1024 console=ttyS3 debug panic=60
PID hash table entries: 512 (order: 9, 2048 bytes)
Calling mv->clock_init()
IO mapped phys addr 0x25400000, 0x0001 pages at virt 0x87faf000 (IOMAP PTE index 0x0001)
Mapped RTC clock page (v 87faf000 p 25400000 )
RTC date is 28:01:0085 01:39:31
Disabling early console. If this is the last text you see, try to append "console=ttyS0" to the kernel command line
Console: colour dummy device 80x25
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Memory: 124552k/130740k available
Calibrating delay loop... 28.26 BogoMIPS (lpj=141312)
Mount-cache hash table entries: 512
NET: Registered protocol family 16
ka49: init_devices
SCSI subsystem initialized
tc: TURBOchannel rev. 1 at 12.5 MHz (without parity)
IO mapped phys addr 0x30000000, 0x4000 pages at virt 0x87fb0000 (IOMAP PTE index 0x0002)
tc0: DEC      PMAD-AA  V5.3e   
IO unmapping 0x4000 pages at PTE index 0x0002
IO mapped phys addr 0x20040000, 0x0001 pages at virt 0x87fb0000 (IOMAP PTE index 0x0002)
IO mapped phys addr 0x20080000, 0x0001 pages at virt 0x87fb1000 (IOMAP PTE index 0x0003)
IO unmapping 0x0001 pages at PTE index 0x0002
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 4096 (order: 2, 16384 bytes)
TCP bind hash table entries: 2048 (order: 1, 8192 bytes)
TCP: Hash tables configured (established 4096 bind 2048)
TCP reno registered
Initializing Cryptographic API
io scheduler noop registered
io scheduler anticipatory registered (default)
io scheduler deadline registered
io scheduler cfq registered
Real Time Clock Driver v1.12ac
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
declance.c: v0.011 by Linux MIPS DECstation task force
IO mapped phys addr 0x30000000, 0x0400 pages at virt 0x87fb2000 (IOMAP PTE index 0x0004)
tc0: PMAD-AA, addr = 08:00:2b:be:64:f5, irq = 81
tc0: registered as eth0.
st: Version 20050830, fixed bufsize 32768, s/g segs 256
vsbus_match: called dev sgec, drv dz
vsbus_match: called dev dz, drv dz
dz_probe: name = dz, base = 0x25000000, irqindex = 4
DECstation DZ serial driver version 1.02
IO mapped phys addr 0x25000000, 0x0001 pages at virt 0x87fb0000 (IOMAP PTE index 0x0002)
ttyS00 at 0x87fb0000
ttyS01 at 0x87fb0000
ttyS02 at 0x87fb0000
ttyS03 at 0x87fb0000
dz.c: using irq rx 0(bus 5), irq tx 0(bus 4)
TCP bic registered
Initializing IPsec netlink socket
NET: Registered protocol family 1
NET: Registered protocol family 10
lo: Disabled Privacy Extensions
IPv6 over IPv4 tunneling driver
NET: Registered protocol family 17
NET: Registered protocol family 15
NET4: DECnet for Linux: V.2.5.68s (C) 1995-2003 Linux DECnet Project Team
DECnet: Routing cache hash table of 512 buckets, 4Kbytes
NET: Registered protocol family 12
802.1Q VLAN Support v1.8 Ben Greear <greearb at candelatech.com>
All bugs added by David S. Miller <davem at redhat.com>
Sending BOOTP requests . OK
IP-Config: Got BOOTP answer from 153.19.170.129, my address is 153.19.170.130
IP-Config: Complete:
      device=eth0, addr=153.19.170.130, mask=255.255.255.0, gw=255.255.255.255,
     host=cougar.ds2.pg.gda.pl, domain=, nis-domain=(none),
     bootserver=153.19.170.129, rootserver=153.19.170.129, rootpath=/export/cougar
Looking up port of RPC 100003/2 on 153.19.170.129
Looking up port of RPC 100005/1 on 153.19.170.129
VFS: Mounted root (nfs filesystem).
Freeing unused kernel memory: 96k freed
Warning: unable to open an initial console.
Kernel panic - not syncing: No init found.  Try passing init= option to kernel.
 machine_halt: cpu-specific halt not implemented - HALTing

?06 HLT INST
  PC= 80103E12 PSL= 00000000

>>> 
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