1 2IEEE 1394 support for FreeBSD-5.X and 4.X. 3 41. Introduction 5 6 This tarball contains IEEE1394(FireWire) driver which is first 7 written by Katsushi Kobayashi[1] <ikob@koganei.wide.ad.jp> and 8 modified by Hidetoshi Shimokawa <simokawa@freebsd.org>. 9 Please note this driver is still under development. 10 You can find latest snapshots under: 11 https://people.freebsd.org/~simokawa/ 12 named firewire-2002XXXX.tar.gz 13 14 The driver consists of 6 parts: 15 16 - fwohci.c/fwohci_pci.c 17 OHCI[2] driver 18 - IEEE1394 link/phy chip control 19 - firewire.c 20 Chip independent driver 21 - CSR 22 - Transaction 23 - Character devices for userland 24 - fwmem.c 25 /dev/fwmem0: physical memory of a remote node. 26 - sbp.c 27 SBP-II[3] (a.k.a. SCSI over FireWire) driver 28 29 - if_fwe.c 30 NON-Standard implementation of Ethernet over FireWire. 31 32 - bus_mgm.c (userland) 33 Bus management function for user. 34 show topology map, change gap count, bus reset, etc. 35 362. Installation 37 38 Suppose you have kernel source at /sys. 39 40 - Extract tarball at root directory. 41 - cd /sys/dev/firewire 42 - make 43 - make install 44 - make load 45 463. SBP-II support (sbp) 47 48 - You need CAM(SCSI) support in your kernel. 49 If you are using FreeBSD-5 before 2002/03/23 or FreeBSD-4 before 50 2002/4/8, you need to apply CAM-patch in this archive 51 to handle HDD's(T_RBC or T_DIRECT which doesn't support READ_6). 52 53 - If you connect a few firewire devices only, try the following to 54 reduce gap overhead. 55 56 - ./bus_mgm -g 8 57 584. Ethernet over FireWire (if_fwe) 59 60 This is a sample driver for ethernet emulation. Please note this 61 does NOT conform to any standards like IP over FireWire(RFC2734[4]). 62 It just sends ethernet frames encapsulated in asynchronous stream 63 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 64 facilities what ethernet can do. (ipv6, bridging, vlan etc.) 65 66 It also has DEVICE_POLLING[5] support. To enable it, edit your 67 kernel config file and Makefile.fwe then rebuild kernel and if_fwe.ko. 68 695. FireWire for Kernel Hackers 70 71 As you know, IEEE1394 is a bus and OHCI supports physical access 72 to the host memory. This means that you can access the remote 73 host over firewire without software support at the remote host. 74 In other words, you can investigate remote host's physical memory 75 whether its OS is alive or crashed or hangs up. 76 77 You need to apply KVMLIB-patch and rebuild libkvm then rebuild ps, 78 dmesg and gdb those are statically linked. 79 You may want to apply GDB-patch in this archive to get same behavior 80 as gdb with /dev/mem or want to insert savectx(&dumppcb) into panic(), 81 breakpoint() and so on to emulation crash dump. 82 83 You have to determine target node_id manually at this point. 84 (guess using bus_mgm -t or dmesg) 85 (Targets should be specified by EUI64 in the future) 86 87 # sysctl kern.firewire.fwmem_node=[node_id] 88 89 # ps -agx -M /dev/fwmem0 -N /sys/i386/compile/GENERIC/kernel 90 # dmesg -M /dev/fwmem0 -N /sys/i386/compile/GENERIC/kernel 91 # gdb -k -c /dev/fwmem0 /sys/i386/compile/GENERIC/kernel.debug 92 # dd if=/dev/fwmem0 of=vmcore bs=1m count=[phys. memory in MB] 93 94 remote gdb at 400,000,000 bps :-) 95 96 976. DV 98 I have not tested yet. 99 1007. Tested HW 101 102 OS 103 - FreeBSD-4/i386 104 - FreeBSD-4/alpha 105 - FreeBSD-5/i386 106 107 * Not tested on SMP. 108 * Not tested on big-endian machine... 109 110 OHCI 111 - Texas Instruments TSB12LV26 (PCI) 112 - Texas Instruments TSB43AA22 (PCI/Cardbus) 113 114 * There might be phy probing problem but most of the OHCI 115 chips should work. 116 * Tested with multiple firewire buses. 117 118 SBP-II 119 - HDD: Logitec USB/FireWire LHD-P30FU 120 - HDD: Yano A-dish 120GB 121 - HDD: Yano B-Max 320GB 122 The repository of cvsup2.jp.freebsd.org is on this device. 123 - HDD: Personal Storage 3000XT 160GB 124 The last sector of this drive cannot be accessed.. 125 - DVD-RAM: Panasonic LF-D340JD 126 - SCSI-FireWire converter: Yano FWSCSI-01 127 We can recognize only 1 device/lun at this point 128 - HDD: iPod, PowerBook G4 (target mode) 129 Reported by ikob 130 - Scanner: Epson GT-9700F 131 Now works!! 132 Sane-backend needs a patch(SANE-patch in this archive). 133 134 if_fwe 135 - IPv4, IPv6, bridging, vlan. 136 - You need at least two FreeBSD machines with this driver to use. 137 138References: 139[1] ftp://ftp.uec.ac.jp/pub/firewire/beta/ 140[2] http://developer.intel.com/technology/1394/download/ohci_11.htm 141[3] http://www.t10.org/scsi-3.htm 142[4] http://www.faqs.org/rfcs/rfc2734.html 143[5] http://info.iet.unipi.it/~luigi/polling/ 144 145 146Hidetoshi Shimokawa 147simokawa@freebsd.org 148