1$FreeBSD$ 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 46 473. SBP-II support (sbp) 48 49 - You need CAM(SCSI) support in your kernel. 50 If you are using FreeBSD-5 before 2002/03/23 or FreeBSD-4 before 51 2002/4/8, you need to apply CAM-patch in this archive 52 to handle HDD's(T_RBC or T_DIRECT which doesn't support READ_6). 53 54 - If you connect a few firewire devices only, try the following to 55 reduce gap overhead. 56 57 - ./bus_mgm -g 8 58 594. Ethernet over FireWire (if_fwe) 60 61 This is a sample driver for ethernet emulation. Please note this 62 does NOT conform to any standards like IP over FireWire(RFC2734[4]). 63 It just sends ethernet frames encapsulated in asynchronous stream 64 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 65 facilities what ethernet can do. (ipv6, bridging, vlan etc.) 66 67 It also has DEVICE_POLLING[5] support. To enable it, edit your 68 kernel config file and Makefile.fwe then rebuild kernel and if_fwe.ko. 69 705. FireWire for Kernel Hackers 71 72 As you know, IEEE1394 is a bus and OHCI supports physical access 73 to the host memory. This means that you can access the remote 74 host over firewire without software support at the remote host. 75 In other words, you can investigate remote host's physical memory 76 whether its OS is alive or crashed or hangs up. 77 78 You need to apply KVMLIB-patch and rebuild libkvm then rebuild ps, 79 dmesg and gdb those are statically linked. 80 You may want to apply GDB-patch in this archive to get same behavior 81 as gdb with /dev/mem or want to insert savectx(&dumppcb) into panic(), 82 breakpoint() and so on to emulation crash dump. 83 84 You have to determine target node_id manually at this point. 85 (guess using bus_mgm -t or dmesg) 86 (Targets should be specified by EUI64 in the future) 87 88 # sysctl kern.firewire.fwmem_node=[node_id] 89 90 # ps -agx -M /dev/fwmem0 -N /sys/i386/compile/GENERIC/kernel 91 # dmesg -M /dev/fwmem0 -N /sys/i386/compile/GENERIC/kernel 92 # gdb -k -c /dev/fwmem0 /sys/i386/compile/GENERIC/kernel.debug 93 # dd if=/dev/fwmem0 of=vmcore bs=1m count=[phys. memory in MB] 94 95 remote gdb at 400,000,000 bps :-) 96 97 986. DV 99 I have not tested yet. 100 1017. Tested HW 102 103 OS 104 - FreeBSD-4/i386 105 - FreeBSD-4/alpha 106 - FreeBSD-5/i386 107 108 * Not tested on SMP. 109 * Not tested on big-endian machine... 110 111 OHCI 112 - Texas Instruments TSB12LV26 (PCI) 113 - Texas Instruments TSB43AA22 (PCI/Cardbus) 114 115 * There might be phy probing problem but most of the OHCI 116 chips should work. 117 * Tested with multiple firewire buses. 118 119 SBP-II 120 - HDD: Logitec USB/FireWire LHD-P30FU 121 - HDD: Yano A-dish 120GB 122 - HDD: Yano B-Max 320GB 123 The repository of cvsup2.jp.freebsd.org is on this device. 124 - HDD: Personal Storage 3000XT 160GB 125 The last sector of this drive cannot be accessed.. 126 - DVD-RAM: Panasonic LF-D340JD 127 - SCSI-FireWire converter: Yano FWSCSI-01 128 We can recognize only 1 device/lun at this point 129 - HDD: iPod, PowerBook G4 (target mode) 130 Reported by ikob 131 - Scanner: Epson GT-9700F 132 Now works!! 133 Sane-backend needs a patch(SANE-patch in this archive). 134 135 if_fwe 136 - IPv4, IPv6, bridging, vlan. 137 - You need at least two FreeBSD machines with this driver to use. 138 139References: 140[1] ftp://ftp.uec.ac.jp/pub/firewire/beta/ 141[2] http://developer.intel.com/technology/1394/download/ohci_11.htm 142[3] http://www.t10.org/scsi-3.htm 143[4] http://www.faqs.org/rfcs/rfc2734.html 144[5] http://info.iet.unipi.it/~luigi/polling/ 145 146 147Hidetoshi Shimokawa 148simokawa@freebsd.org 149