PC to PC DV stream transfer - not works

[Vladimir Grebenschikov]

Hi 

I am trying to send DV stream from one PC to another using firewire bus:

box1# egrep firew\|fwohci /var/log/messages | cut -d\  -f6-
fwohci0: <Ricoh R5C551> mem 0xd0202000-0xd02027ff at device 5.1 on pci2
fwohci0: [GIANT-LOCKED]
fwohci0: OHCI version 1.0 (ROM=1)
fwohci0: No. of Isochronous channels is 4.
fwohci0: EUI64 08:00:46:03:01:8d:e0:3c
fwohci0: Phy 1394a available S400, 2 ports.
fwohci0: Link S400, max_rec 2048 bytes.
firewire0: <IEEE1394(FireWire) bus> on fwohci0
sbp0: <SBP-2/SCSI over FireWire> on firewire0
...

box1# fwcontrol -t
crc_len: 4 generation:11 node_count:2 sid_count:2
id link gap_cnt speed delay cIRM power port0 port1 port2 ini more
00    1       5  S400     0    1    0W     -     P         0    0
01    1       5  S400     0    1   15W     -     -     C   1    0
box1# fwcontrol -S sample.dv
PAL
0123456789012345678901234
5678901234567890123456789
0123456789012345678901234
5678901234567890123456789
....

box2# fwcontrol -R gotsample.dv
(EAGAIN)
(EAGAIN)
(EAGAIN)
NTSC
0fwcontrol: unknown format 0x29
box2# egrep firew\|fwohci /var/log/messages | cut -d\  -f6-
fwohci0: <Texas Instruments TSB12LV26> mem
0xe9100000-0xe9103fff,0xe9106000-0xe91067ff irq 12 at device 17.0 on
pci0
fwohci0: [GIANT-LOCKED]
fwohci0: OHCI version 1.0 (ROM=1)
fwohci0: No. of Isochronous channel is 4.
fwohci0: EUI64 00:30:8d:01:20:43:42:d8
fwohci0: Phy 1394a available S400, 3 ports.
fwohci0: Link S400, max_rec 2048 bytes.
firewire0: <IEEE1394(FireWire) bus> on fwohci0


What's wrong with such transfer ?
(In reality both host are able to get stream from DV camera, and I can't
send stream to camera back, not sure why, camera are DV-IN capable)

Another question:

Is there easy way to "export" disk device through firewire bus ?
I do not mean NFS over fwe, I mean sbp or something on geom level.


-- 
Vladimir B. Grebenschikov
SWsoft Inc. vova at sw-soft.com