00README
1$FreeBSD: src/sys/dev/firewire/00README,v 1.2 2005/10/01 18:56:16 glebius Exp $
2
3IEEE 1394 support for FreeBSD-5.X and 4.X.
4
51. Introduction
6
7 This tarball contains IEEE1394(FireWire) driver which is first
8 written by Katsushi Kobayashi[1] <ikob@koganei.wide.ad.jp> and
9 modified by Hidetoshi Shimokawa <simokawa@freebsd.org>.
10 Please note this driver is still under development.
11 You can find latest snapshots under:
12 http://people.freebsd.org/~simokawa/
13 named firewire-2002XXXX.tar.gz
14
15 The driver consists of 6 parts:
16
17 - fwohci.c/fwohci_pci.c
18 OHCI[2] driver
19 - IEEE1394 link/phy chip control
20 - firewire.c
21 Chip independent driver
22 - CSR
23 - Transaction
24 - Character devices for userland
25 - fwmem.c
26 /dev/fwmem0: physical memory of a remote node.
27 - sbp.c
28 SBP-II[3] (a.k.a. SCSI over FireWire) driver
29
30 - if_fwe.c
31 NON-Standard implementation of Ethernet over FireWire.
32
33 - bus_mgm.c (userland)
34 Bus management function for user.
35 show topology map, change gap count, bus reset, etc.
36
372. Installation
38
39 Suppose you have kernel source at /sys.
40
41 - Extract tarball at root directory.
42 - cd /sys/dev/firewire
43 - make
44 - make install
45 - make load
46
47 For FreeBSD-4 user:
48
49 - ./MAKEDEV
50
513. SBP-II support (sbp)
52
53 - You need CAM(SCSI) support in your kernel.
54 If you are using FreeBSD-5 before 2002/03/23 or FreeBSD-4 before
55 2002/4/8, you need to apply CAM-patch in this archive
56 to handle HDD's(T_RBC or T_DIRECT which doesn't support READ_6).
57
58 - If you connect a few firewire devices only, try the following to
59 reduce gap overhead.
60
61 - ./bus_mgm -g 8
62
634. Ethernet over FireWire (if_fwe)
64
65 This is a sample driver for ethernet emulation. Please note this
66 does NOT conform to any standards like IP over FireWire(RFC2734[4]).
67 It just sends ethernet frames encapsulated in asynchronous stream
68 packets. It doesn't scale because it does something like unicast over multicast, but it's easy to be implemented and you can use any
69 facilities what ethernet can do. (ipv6, bridging, vlan etc.)
70
71 It also has DEVICE_POLLING[5] support. To enable it, edit your
72 kernel config file and Makefile.fwe then rebuild kernel and if_fwe.ko.
73
745. FireWire for Kernel Hackers
75
76 As you know, IEEE1394 is a bus and OHCI supports physical access
77 to the host memory. This means that you can access the remote
78 host over firewire without software support at the remote host.
79 In other words, you can investigate remote host's physical memory
80 whether its OS is alive or crashed or hangs up.
81
82 You need to apply KVMLIB-patch and rebuild libkvm then rebuild ps,
83 dmesg and gdb those are statically linked.
84 You may want to apply GDB-patch in this archive to get same behavior
85 as gdb with /dev/mem or want to insert savectx(&dumppcb) into panic(),
86 breakpoint() and so on to emulation crash dump.
87
88 You have to determine target node_id manually at this point.
89 (guess using bus_mgm -t or dmesg)
90 (Targets should be specified by EUI64 in the future)
91
92 # sysctl kern.firewire.fwmem_node=[node_id]
93
94 # ps -agx -M /dev/fwmem0 -N /sys/i386/compile/GENERIC/kernel
95 # dmesg -M /dev/fwmem0 -N /sys/i386/compile/GENERIC/kernel
96 # gdb -k -c /dev/fwmem0 /sys/i386/compile/GENERIC/kernel.debug
97 # dd if=/dev/fwmem0 of=vmcore bs=1m count=[phys. memory in MB]
98
99 remote gdb at 400,000,000 bps :-)
100
101
1026. DV
103 I have not tested yet.
104
1057. Tested HW
106
107 OS
108 - FreeBSD-4/i386
109 - FreeBSD-4/alpha
110 - FreeBSD-5/i386
111
112 * Not tested on SMP.
113 * Not tested on big-endian machine...
114
115 OHCI
116 - Texas Instruments TSB12LV26 (PCI)
117 - Texas Instruments TSB43AA22 (PCI/Cardbus)
118
119 * There might be phy probing problem but most of the OHCI
120 chips should work.
121 * Tested with multiple firewire buses.
122
123 SBP-II
124 - HDD: Logitec USB/FireWire LHD-P30FU
125 - HDD: Yano A-dish 120GB
126 - HDD: Yano B-Max 320GB
127 The repository of cvsup2.jp.freebsd.org is on this device.
128 - HDD: Personal Storage 3000XT 160GB
129 The last sector of this drive cannot be accessed..
130 - DVD-RAM: Panasonic LF-D340JD
131 - SCSI-FireWire converter: Yano FWSCSI-01
132 We can recognize only 1 device/lun at this point
133 - HDD: iPod, PowerBook G4 (target mode)
134 Reported by ikob
135 - Scanner: Epson GT-9700F
136 Now works!!
137 Sane-backend needs a patch(SANE-patch in this archive).
138
139 if_fwe
140 - IPv4, IPv6, bridging, vlan.
141 - You need at least two FreeBSD machines with this driver to use.
142
143References:
144[1] ftp://ftp.uec.ac.jp/pub/firewire/beta/
145[2] http://developer.intel.com/technology/1394/download/ohci_11.htm
146[3] http://www.t10.org/scsi-3.htm
147[4] http://www.faqs.org/rfcs/rfc2734.html
148[5] http://info.iet.unipi.it/~luigi/polling/
149
150
151Hidetoshi Shimokawa
152simokawa@freebsd.org
153