pax_global_header00006660000000000000000000000064125374174360014526gustar00rootroot0000000000000052 comment=0ad04e354d85f14b5dfd6f042fff987b530ccbd0 vblade-vblade-23/000077500000000000000000000000001253741743600140045ustar00rootroot00000000000000vblade-vblade-23/.gitignore000066400000000000000000000000311253741743600157660ustar00rootroot00000000000000*.orig cscope.* *.rej *~ vblade-vblade-23/COPYING000066400000000000000000000431101253741743600150360ustar00rootroot00000000000000 GNU GENERAL PUBLIC LICENSE Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. This General Public License applies to most of the Free Software Foundation's software and to any other program whose authors commit to using it. (Some other Free Software Foundation software is covered by the GNU Library General Public License instead.) You can apply it to your programs, too. When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for this service if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs; and that you know you can do these things. To protect your rights, we need to make restrictions that forbid anyone to deny you these rights or to ask you to surrender the rights. These restrictions translate to certain responsibilities for you if you distribute copies of the software, or if you modify it. For example, if you distribute copies of such a program, whether gratis or for a fee, you must give the recipients all the rights that you have. You must make sure that they, too, receive or can get the source code. And you must show them these terms so they know their rights. We protect your rights with two steps: (1) copyright the software, and (2) offer you this license which gives you legal permission to copy, distribute and/or modify the software. Also, for each author's protection and ours, we want to make certain that everyone understands that there is no warranty for this free software. If the software is modified by someone else and passed on, we want its recipients to know that what they have is not the original, so that any problems introduced by others will not reflect on the original authors' reputations. Finally, any free program is threatened constantly by software patents. We wish to avoid the danger that redistributors of a free program will individually obtain patent licenses, in effect making the program proprietary. To prevent this, we have made it clear that any patent must be licensed for everyone's free use or not licensed at all. The precise terms and conditions for copying, distribution and modification follow. GNU GENERAL PUBLIC LICENSE TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 0. This License applies to any program or other work which contains a notice placed by the copyright holder saying it may be distributed under the terms of this General Public License. The "Program", below, refers to any such program or work, and a "work based on the Program" means either the Program or any derivative work under copyright law: that is to say, a work containing the Program or a portion of it, either verbatim or with modifications and/or translated into another language. (Hereinafter, translation is included without limitation in the term "modification".) Each licensee is addressed as "you". Activities other than copying, distribution and modification are not covered by this License; they are outside its scope. The act of running the Program is not restricted, and the output from the Program is covered only if its contents constitute a work based on the Program (independent of having been made by running the Program). Whether that is true depends on what the Program does. 1. You may copy and distribute verbatim copies of the Program's source code as you receive it, in any medium, provided that you conspicuously and appropriately publish on each copy an appropriate copyright notice and disclaimer of warranty; keep intact all the notices that refer to this License and to the absence of any warranty; and give any other recipients of the Program a copy of this License along with the Program. You may charge a fee for the physical act of transferring a copy, and you may at your option offer warranty protection in exchange for a fee. 2. You may modify your copy or copies of the Program or any portion of it, thus forming a work based on the Program, and copy and distribute such modifications or work under the terms of Section 1 above, provided that you also meet all of these conditions: a) You must cause the modified files to carry prominent notices stating that you changed the files and the date of any change. b) You must cause any work that you distribute or publish, that in whole or in part contains or is derived from the Program or any part thereof, to be licensed as a whole at no charge to all third parties under the terms of this License. c) If the modified program normally reads commands interactively when run, you must cause it, when started running for such interactive use in the most ordinary way, to print or display an announcement including an appropriate copyright notice and a notice that there is no warranty (or else, saying that you provide a warranty) and that users may redistribute the program under these conditions, and telling the user how to view a copy of this License. (Exception: if the Program itself is interactive but does not normally print such an announcement, your work based on the Program is not required to print an announcement.) These requirements apply to the modified work as a whole. If identifiable sections of that work are not derived from the Program, and can be reasonably considered independent and separate works in themselves, then this License, and its terms, do not apply to those sections when you distribute them as separate works. But when you distribute the same sections as part of a whole which is a work based on the Program, the distribution of the whole must be on the terms of this License, whose permissions for other licensees extend to the entire whole, and thus to each and every part regardless of who wrote it. Thus, it is not the intent of this section to claim rights or contest your rights to work written entirely by you; rather, the intent is to exercise the right to control the distribution of derivative or collective works based on the Program. In addition, mere aggregation of another work not based on the Program with the Program (or with a work based on the Program) on a volume of a storage or distribution medium does not bring the other work under the scope of this License. 3. You may copy and distribute the Program (or a work based on it, under Section 2) in object code or executable form under the terms of Sections 1 and 2 above provided that you also do one of the following: a) Accompany it with the complete corresponding machine-readable source code, which must be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, b) Accompany it with a written offer, valid for at least three years, to give any third party, for a charge no more than your cost of physically performing source distribution, a complete machine-readable copy of the corresponding source code, to be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, c) Accompany it with the information you received as to the offer to distribute corresponding source code. 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If distribution of executable or object code is made by offering access to copy from a designated place, then offering equivalent access to copy the source code from the same place counts as distribution of the source code, even though third parties are not compelled to copy the source along with the object code. 4. You may not copy, modify, sublicense, or distribute the Program except as expressly provided under this License. Any attempt otherwise to copy, modify, sublicense or distribute the Program is void, and will automatically terminate your rights under this License. However, parties who have received copies, or rights, from you under this License will not have their licenses terminated so long as such parties remain in full compliance. 5. You are not required to accept this License, since you have not signed it. However, nothing else grants you permission to modify or distribute the Program or its derivative works. These actions are prohibited by law if you do not accept this License. Therefore, by modifying or distributing the Program (or any work based on the Program), you indicate your acceptance of this License to do so, and all its terms and conditions for copying, distributing or modifying the Program or works based on it. 6. Each time you redistribute the Program (or any work based on the Program), the recipient automatically receives a license from the original licensor to copy, distribute or modify the Program subject to these terms and conditions. You may not impose any further restrictions on the recipients' exercise of the rights granted herein. You are not responsible for enforcing compliance by third parties to this License. 7. If, as a consequence of a court judgment or allegation of patent infringement or for any other reason (not limited to patent issues), conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License. If you cannot distribute so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may not distribute the Program at all. For example, if a patent license would not permit royalty-free redistribution of the Program by all those who receive copies directly or indirectly through you, then the only way you could satisfy both it and this License would be to refrain entirely from distribution of the Program. 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If the distribution and/or use of the Program is restricted in certain countries either by patents or by copyrighted interfaces, the original copyright holder who places the Program under this License may add an explicit geographical distribution limitation excluding those countries, so that distribution is permitted only in or among countries not thus excluded. In such case, this License incorporates the limitation as if written in the body of this License. 9. The Free Software Foundation may publish revised and/or new versions of the General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. Each version is given a distinguishing version number. If the Program specifies a version number of this License which applies to it and "any later version", you have the option of following the terms and conditions either of that version or of any later version published by the Free Software Foundation. If the Program does not specify a version number of this License, you may choose any version ever published by the Free Software Foundation. 10. If you wish to incorporate parts of the Program into other free programs whose distribution conditions are different, write to the author to ask for permission. For software which is copyrighted by the Free Software Foundation, write to the Free Software Foundation; we sometimes make exceptions for this. Our decision will be guided by the two goals of preserving the free status of all derivatives of our free software and of promoting the sharing and reuse of software generally. NO WARRANTY 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. END OF TERMS AND CONDITIONS How to Apply These Terms to Your New Programs If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms. To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively convey the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found. Copyright (C) This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Also add information on how to contact you by electronic and paper mail. If the program is interactive, make it output a short notice like this when it starts in an interactive mode: Gnomovision version 69, Copyright (C) year name of author Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details. The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, the commands you use may be called something other than `show w' and `show c'; they could even be mouse-clicks or menu items--whatever suits your program. You should also get your employer (if you work as a programmer) or your school, if any, to sign a "copyright disclaimer" for the program, if necessary. Here is a sample; alter the names: Yoyodyne, Inc., hereby disclaims all copyright interest in the program `Gnomovision' (which makes passes at compilers) written by James Hacker. , 1 April 1989 Ty Coon, President of Vice This General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Library General Public License instead of this License. vblade-vblade-23/HACKING000066400000000000000000000030101253741743600147650ustar00rootroot00000000000000Contributions to the vblade are welcome. In contributing, though, please stay true to the original simplicity of the software. Many open source projects suffer from the "creeping feature demon" phenomenon. If you think the vblade needs a great new feature, first seriously try to think of a way to accomplish your goal without adding to the vblade itself. Patches should be clean (to the point and easy to read) and should do one thing. (Avoid, for example, mixing style changes with substantive changes.) Send multiple patches if necessary. Patches should be generated with "diff -uprN" if possible, and should be designed to be applied with "patch -p1". When possible, the best way to submit a patch is by sending it to the aoetools-discuss list. You can subscribe at the aoetools project web page on sourceforge.net. When you send your patch, here are some things to cover: * What version of the vblade did you use to generate the patch? (Hopefully it was the latest.) * What was your motivation for creating the patch? That is, what problem does it solve? * What testing did you perform to ensure that your patch did not introduce bugs and accomplished what you intended? * If your changes affect the end-user experience, have you updated the vblade documentation? * Is your email client able to send a patch without changing it? Many email clients and servers corrupt patches. Please test your email chain by sending an applying a patch before sending your patch to the mailing list. vblade-vblade-23/NEWS000066400000000000000000000113361253741743600145070ustar00rootroot00000000000000-*- change-log -*- 2015-06-14 Ed Cashin Add convenience script for creating sparse files vblade-23 2015-02-25 Catalin Salgau Warn about Windows problem with CHS misalignment 2014-09-13 Ed Cashin code cleanup: remove unused variables 2014-08-10 Ed Cashin vblade-22 2014-06-08 Ed Cashin update version for v22 release candidate 1 buffer boundary cleanups FreeBSD BPF and MTU fixes from Catalin Salgau offset and size options by Christoph Biedl vblade-22rc1 2013-03-18 Ed Cashin add big-endian support from Daniel Mealha Cabrita vblade-21 2009-08-14 Sam Hopkins bugfix: aoe command error did not set Error bit in flags add support for AoEr11 set ident serial to shelf.slot:hostname vblade-20 2008-10-08 Ed Cashin add Chris Webb's bpf fix for FreeBSD add Ryan Thomas's fix to stop bufcnt being overridden vblade-19 2008-07-14 Ed Cashin add Chris Webb's block device options patch add Chris Webb's socket options patch for better jumbo handling remove obsolete contrib/o_direct.diff vblade-18 2008-06-09 Ed Cashin add Chris Webb's latest BPF patch to vblade, remove from contrib update contributed AIO patch for compatibility with current sources vblade-17 2008-05-07 Ed Cashin add Chris Webb's AIO patch to the contributions add Chris Webb's BPF patch to the contributions vblade-16 2008-02-20 Ed Cashin require the amount of data we use, not the amount ethernet requires make sure the packet length agrees with the config query length make sure the packet length agrees with the amount to write remove newline embedded in fw version field of ATA dev ID response vblade-15 2006-11-20 Sam Hopkins apply contrib jumbo patch to standard distribution add jumbo configuration app. note in README add jumbo README reference to manpage add mask feature; -m flag update manpage to describe -m flag vblade-14 2006-10-05 Sam Hopkins fix confcmd memcpy bug correct scnt return value in read/write ata response replace O_RDONLY fallback with explicit stat. root always wins. vblade-13 2006-10-04 Sam Hopkins fix confcmd buglets fix atacmd buglets add atacmd handling for bad argument errors add O_RDONLY open if O_RDWR fails add contrib patch directory add contrib/README add jumbo patch to contrib add o_direct patch to contrib vblade-12 2006-09-21 "Adam J. Richter" add install target for makefile vblade-11 2005-12-06 Ed Cashin fix u64 configuration on FreeBSD release vblade-10 2005-12-06 Valeriy Glushkov implemented config string support added handler for ATA Check power mode command 2005-11-15 Ed Cashin add compatibility with platforms lacking u64 (e.g., Slackware) release vblade-9 2005-11-10 Ed Cashin call atainit on program startup put VBLADE_VERSION in dat.h and use it in firmware version release vblade-7 include Stacey's patch to use p{read,write} on FreeBSD include Stacey's patch to typedef ulong on FreeBSD fix makefile dependencies (e.g., rebuild on new aoe.c) fix config string length specification include Stacey's patch to avoid compile warnings on FreeBSD release vblade-8 2005-11-10 "Stacey D. Son" include FreeBSD support 2005-10-03 Ed Cashin don't invoke vblade with dash from vbladed 2005-08-31 20:14:12 GMT Ed Cashin ATA identify: don't juggle bytes in shorts on big endian arch add manpage for vblade, vbladed release vblade-6 2005-03-17 15:24:30 GMT Ed Cashin follow up on vblade-2's off-by-one patch, making end of device usable release vblade-5 2005-03-15 22:03:17 GMT Ed Cashin don't rely on kernel headers for defining the aoe type 0x88a2 release vblade-4 2005-03-15 17:27:01 GMT Ed Cashin docs: aoe-2.6-7 is the first driver to support multiple blades per mac release vblade-3 2005-03-11 18:30:26 GMT Ed Cashin put 64-bit configuration into config.h file don't use uninitialized variables broadcast config query on startup clarify desired patch format in HACKING add sah@coraid.com's vblade-1.ata.c.patch: fix off-by-one and ext LBA add docs, remove daemonizing code from vblade release vblade-2 2005-02-08 20:21:52 GMT Ed Cashin starting documentation add script that daemonizes vblade process, logging output make vblade sources -Wall clean, use daemon(3) release vblade-1 vblade-vblade-23/README000066400000000000000000000115721253741743600146720ustar00rootroot00000000000000 INTRODUCTION ------------ The vblade is a minimal ATA over Ethernet (AoE) storage target. Its focus is simplicity, not performance or richness of features. It exports a seekable file available over an ethernet local area network (LAN) via the AoE data storage protocol. The name, "vblade," is historical: It is a virtual EtherDrive (R) blade. The first AoE target hardware sold by Coraid was in a blade form factor, ten to a 4-rack-unit chassis. The seekable file is typically a block device like /dev/md0 but even regular files will work. Sparse files can be especially convenient. When vblade exports the block storage over AoE it becomes a storage target. Another host on the same LAN can access the storage if it has a compatible aoe kernel driver. BUILDING -------- The following command should build the vblade program on a Linux-based system: make For FreeBSD systems, include an extra parameter like so: make PLATFORM=freebsd EXAMPLES -------- There is a "vbladed" script that daemonizes the program and sends its output to the logger program. Make sure you have logger installed if you would like to run vblade as a daemon with the vbladed script. ecashin@kokone vblade$ echo 'I have logger' | logger ecashin@kokone vblade$ tail -3 /var/log/messages Feb 8 14:52:49 kokone -- MARK -- Feb 8 15:12:49 kokone -- MARK -- Feb 8 15:19:56 kokone logger: I have logger Here is a short example showing how to export a block device with a vblade. (This is a loop device backed by a sparse file, but you could use any seekable file instead of /dev/loop7.) ecashin@kokone vblade$ make cc -Wall -c -o aoe.o aoe.c cc -Wall -c -o linux.o linux.c cc -Wall -c -o ata.o ata.c cc -o vblade aoe.o linux.o ata.o ecashin@kokone vblade$ su Password: root@kokone vblade# modprobe loop root@kokone vblade# dd if=/dev/zero bs=1k count=1 seek=`expr 1024 \* 4096` of=bd -file 1+0 records in 1+0 records out 1024 bytes transferred in 0.009901 seconds (103423 bytes/sec) root@kokone vblade# losetup /dev/loop7 bd-file root@kokone vblade# ./vblade 9 0 eth0 /dev/loop7 ioctl returned 0 4294968320 bytes pid 16967: e9.0, 8388610 sectors Here's how you can use the Linux aoe driver to access the storage from another host on the LAN. ecashin@kokone ecashin$ ssh makki Last login: Mon Feb 7 10:25:04 2005 ecashin@makki ~$ su Password: root@makki ecashin# modprobe aoe root@makki ecashin# aoe-stat e9.0 eth1 up root@makki ecashin# mkfs -t ext3 /dev/etherd/e9.0 mke2fs 1.35 (28-Feb-2004) ... Creating journal (8192 blocks): done Writing superblocks and filesystem accounting information: done This filesystem will be automatically checked every 24 mounts or 180 days, whichever comes first. Use tune2fs -c or -i to override. root@makki ecashin# mkdir /mnt/e9.0 root@makki ecashin# mount /dev/etherd/e9.0 /mnt/e9.0 root@makki ecashin# echo hooray > /mnt/e9.0/test.txt root@makki ecashin# cat /mnt/e9.0/test.txt hooray Remember: be as careful with these devices as you would with /dev/hda! Jumbo Frame Compatibility ------------------------- Vblade can use jumbo frames provided your initiator is jumbo frame capable. There is one small configuration gotcha to consider to avoid having the vblade kernel frequently drop frames. Vblade uses a raw socket to perform AoE. The linux kernel will only buffer a certain amount of data for a raw socket. For 2.6 kernels, this value is managed through /proc: root@nai aoe# grep . /proc/sys/net/core/rmem_* /proc/sys/net/core/rmem_default:128000 /proc/sys/net/core/rmem_max:128000 rmem_max is the max amount a user process may expand the receive buffer to -- through setsockopt(...) -- and rmem_default is, as you might expect, the default. The gotcha is that this amount to buffer does not relate to the amount of user data buffered, but the amount of real data buffered. As an example, the Intel GbE controller must be given 16KB frames to use an MTU over 8KB. For each received frame, the kernel must be able to buffer 16KB, even if the aoe frame is only 60 bytes in length. The linux aoe initiator will use 16 outstanding frames when used with vblade. A good default for ensuring frames are not dropped is to allocate 16KB for 17 frames: for f in /proc/sys/net/core/rmem_*; do echo $((17 * 16 * 1024)) >$f; done Be sure to start vblade after changing the buffering defaults as the buffer value is set when the socket is opened. AoE Initiator Compatibility --------------------------- The Linux aoe driver for the 2.6 kernel is compatible if you use aoe-2.6-7 or newer. You can use older aoe drivers but you will only be able to see one vblade per MAC address. Contrib Patches --------------- see contrib/README Kvblade ------- While vblade runs as a userland process (like "ls" or "vi"), there is another program that runs inside the kernel. It is called kvblade. It is alpha software. vblade-vblade-23/aoe.c000066400000000000000000000225011253741743600147140ustar00rootroot00000000000000// aoe.c: the ATA over Ethernet virtual EtherDrive (R) blade #define _GNU_SOURCE #include "config.h" #include #include #include #include #include #include #include #include #include "dat.h" #include "fns.h" enum { Nmasks= 32, Nsrr= 256, Alen= 6, }; uchar masks[Nmasks*Alen]; int nmasks; uchar srr[Nsrr*Alen]; int nsrr; char config[Nconfig]; int nconfig = 0; int maxscnt = 2; char *ifname; int bufcnt = Bufcount; void aoead(int fd) // advertise the virtual blade { uchar buf[2000]; Conf *p; int i; p = (Conf *)buf; memset(p, 0, sizeof *p); memset(p->h.dst, 0xff, 6); memmove(p->h.src, mac, 6); p->h.type = htons(0x88a2); p->h.flags = Resp; p->h.maj = htons(shelf); p->h.min = slot; p->h.cmd = Config; p->bufcnt = htons(bufcnt); p->scnt = maxscnt = (getmtu(sfd, ifname) - sizeof (Ata)) / 512; p->firmware = htons(FWV); p->vercmd = 0x10 | Qread; memcpy(p->data, config, nconfig); p->len = htons(nconfig); if (nmasks == 0) if (putpkt(fd, buf, sizeof *p - sizeof p->data + nconfig) == -1) { perror("putpkt aoe id"); return; } for (i=0; ih.dst, &masks[i*Alen], Alen); if (putpkt(fd, buf, sizeof *p - sizeof p->data + nconfig) == -1) perror("putpkt aoe id"); } } int isbcast(uchar *ea) { uchar *b = (uchar *)"\377\377\377\377\377\377"; return memcmp(ea, b, 6) == 0; } long long getlba(uchar *p) { vlong v; int i; v = 0; for (i = 0; i < 6; i++) v |= (vlong)(*p++) << i * 8; return v; } int aoeata(Ata *p, int pktlen) // do ATA reqeust { Ataregs r; int len = 60; int n; r.lba = getlba(p->lba); r.sectors = p->sectors; r.feature = p->err; r.cmd = p->cmd; if (r.cmd != 0xec) if (!rrok(p->h.src)) { p->h.flags |= Error; p->h.error = Res; return len; } if (atacmd(&r, (uchar *)(p+1), maxscnt*512, pktlen - sizeof(*p)) < 0) { p->h.flags |= Error; p->h.error = BadArg; return len; } if (!(p->aflag & Write)) if ((n = p->sectors)) { n -= r.sectors; len = sizeof (Ata) + (n*512); } p->sectors = r.sectors; p->err = r.err; p->cmd = r.status; return len; } #define QCMD(x) ((x)->vercmd & 0xf) // yes, this makes unnecessary copies. int confcmd(Conf *p, int payload) // process conf request { int len; len = ntohs(p->len); if (QCMD(p) != Qread) if (len > Nconfig || len > payload) return 0; // if you can't play nice ... switch (QCMD(p)) { case Qtest: if (len != nconfig) return 0; // fall thru case Qprefix: if (len > nconfig) return 0; if (memcmp(config, p->data, len)) return 0; // fall thru case Qread: break; case Qset: if (nconfig) if (nconfig != len || memcmp(config, p->data, len)) { p->h.flags |= Error; p->h.error = ConfigErr; break; } // fall thru case Qfset: nconfig = len; memcpy(config, p->data, nconfig); break; default: p->h.flags |= Error; p->h.error = BadArg; } memmove(p->data, config, nconfig); p->len = htons(nconfig); p->bufcnt = htons(bufcnt); p->scnt = maxscnt = (getmtu(sfd, ifname) - sizeof (Ata)) / 512; p->firmware = htons(FWV); p->vercmd = 0x10 | QCMD(p); // aoe v.1 return nconfig + sizeof *p - sizeof p->data; } static int aoesrr(Aoesrr *sh, int len) { uchar *m, *e; int n; e = (uchar *) sh + len; m = (uchar *) sh + Nsrrhdr; switch (sh->rcmd) { default: e: sh->h.error = BadArg; sh->h.flags |= Error; break; case 1: // set if (!rrok(sh->h.src)) { sh->h.error = Res; sh->h.flags |= Error; break; } case 2: // force set n = sh->nmacs * 6; if (e < m + n) goto e; nsrr = sh->nmacs; memmove(srr, m, n); case 0: // read break; } sh->nmacs = nsrr; n = nsrr * 6; memmove(m, srr, n); return Nsrrhdr + n; } static int addmask(uchar *ea) { uchar *p, *e; p = masks; e = p + nmasks; for (; p= Nmasks) return 0; memmove(p, ea, 6); nmasks++; return 1; } static void rmmask(uchar *ea) { uchar *p, *e; p = masks; e = p + nmasks; for (; pcmd) { case Medit: mde = md + mh->nmacs; for (; mdcmd) { case MDdel: rmmask(md->mac); continue; case MDadd: if (addmask(md->mac)) continue; mh->merror = MEfull; mh->nmacs = md - mdi; goto e; case MDnop: continue; default: mh->merror = MEbaddir; mh->nmacs = md - mdi; goto e; } } // success. fall thru to return list case Mread: md = mdi; for (i=0; ires = md->cmd = 0; memmove(md->mac, &masks[i*6], 6); md++; } mh->merror = 0; mh->nmacs = nmasks; n = sizeof *md * nmasks; break; default: mh->h.flags |= Error; mh->h.error = BadArg; } e: return n + Nmaskhdr; } void doaoe(Aoehdr *p, int n) { int len; switch (p->cmd) { case ATAcmd: if (n < Natahdr) return; len = aoeata((Ata*)p, n); break; case Config: if (n < Ncfghdr) return; len = confcmd((Conf *)p, n); break; case Mask: if (n < Nmaskhdr) return; len = aoemask((Aoemask *)p, n); break; case Resrel: if (n < Nsrrhdr) return; len = aoesrr((Aoesrr *)p, n); break; default: p->error = BadCmd; p->flags |= Error; len = n; break; } if (len <= 0) return; memmove(p->dst, p->src, 6); memmove(p->src, mac, 6); p->maj = htons(shelf); p->min = slot; p->flags |= Resp; if (putpkt(sfd, (uchar *) p, len) == -1) { perror("write to network"); exit(1); } } void aoe(void) { Aoehdr *p; uchar *buf; int n, sh; long pagesz; enum { bufsz = 1<<16, }; if ((pagesz = sysconf(_SC_PAGESIZE)) < 0) { perror("sysconf"); exit(1); } if ((buf = malloc(bufsz + pagesz)) == NULL) { perror("malloc"); exit(1); } n = (size_t) buf + sizeof(Ata); if (n & (pagesz - 1)) buf += pagesz - (n & (pagesz - 1)); aoead(sfd); for (;;) { n = getpkt(sfd, buf, bufsz); if (n < 0) { perror("read network"); exit(1); } if (n < sizeof(Aoehdr)) continue; p = (Aoehdr *) buf; if (ntohs(p->type) != 0x88a2) continue; if (p->flags & Resp) continue; sh = ntohs(p->maj); if (sh != shelf && sh != (ushort)~0) continue; if (p->min != slot && p->min != (uchar)~0) continue; if (nmasks && !maskok(p->src)) continue; doaoe(p, n); } } void usage(void) { fprintf(stderr, "usage: %s [-b bufcnt] [-o offset] [-l length] [-d ] [-s] [-r] [ -m mac[,mac...] ] shelf slot netif filename\n", progname); exit(1); } /* parseether from plan 9 */ int parseether(uchar *to, char *from) { char nip[4]; char *p; int i; p = from; for(i = 0; i < 6; i++){ if(*p == 0) return -1; nip[0] = *p++; if(*p == 0) return -1; nip[1] = *p++; nip[2] = 0; to[i] = strtoul(nip, 0, 16); if(*p == ':') p++; } return 0; } void setmask(char *ml) { char *p; int n; for (; ml; ml=p) { p = strchr(ml, ','); if (p) *p++ = '\0'; n = parseether(&masks[nmasks*Alen], ml); if (n < 0) fprintf(stderr, "ignoring mask %s, parseether failure\n", ml); else nmasks++; } } int maskok(uchar *ea) { int i, ok = 0; for (i=0; !ok && i size) { fprintf(stderr, "Length %llu too big - exceeds size of file!\n", offset); exit(1); } size = length; } ifname = argv[2]; sfd = dial(ifname, bufcnt); getea(sfd, ifname, mac); printf("pid %ld: e%d.%d, %lld sectors %s\n", (long) getpid(), shelf, slot, size, readonly ? "O_RDONLY" : "O_RDWR"); fflush(stdout); atainit(); aoe(); return 0; } vblade-vblade-23/ata.c000066400000000000000000000065411253741743600147230ustar00rootroot00000000000000// ata.c: ATA simulator for vblade #include "config.h" #include #include #include #include "dat.h" #include "fns.h" enum { // err bits UNC = 1<<6, MC = 1<<5, IDNF = 1<<4, MCR = 1<<3, ABRT = 1<<2, NM = 1<<1, // status bits BSY = 1<<7, DRDY = 1<<6, DF = 1<<5, DRQ = 1<<3, ERR = 1<<0, }; static ushort ident[256]; static void setfld(ushort *a, int idx, int len, char *str) // set field in ident { uchar *p; p = (uchar *)(a+idx); while (len > 0) { if (*str == 0) p[1] = ' '; else p[1] = *str++; if (*str == 0) p[0] = ' '; else p[0] = *str++; p += 2; len -= 2; } } static void setlba28(ushort *ident, vlong lba) { uchar *cp; cp = (uchar *) &ident[60]; *cp++ = lba; *cp++ = lba >>= 8; *cp++ = lba >>= 8; *cp++ = (lba >>= 8) & 0xf; } static void setlba48(ushort *ident, vlong lba) { uchar *cp; cp = (uchar *) &ident[100]; *cp++ = lba; *cp++ = lba >>= 8; *cp++ = lba >>= 8; *cp++ = lba >>= 8; *cp++ = lba >>= 8; *cp++ = lba >>= 8; } static void setushort(ushort *a, int i, ushort n) { uchar *p; p = (uchar *)(a+i); *p++ = n & 0xff; *p++ = n >> 8; } void atainit(void) { char buf[64]; setushort(ident, 47, 0x8000); setushort(ident, 49, 0x0200); setushort(ident, 50, 0x4000); setushort(ident, 83, 0x5400); setushort(ident, 84, 0x4000); setushort(ident, 86, 0x1400); setushort(ident, 87, 0x4000); setushort(ident, 93, 0x400b); setfld(ident, 27, 40, "Coraid EtherDrive vblade"); sprintf(buf, "V%d", VBLADE_VERSION); setfld(ident, 23, 8, buf); setfld(ident, 10, 20, serial); } /* The ATA spec is weird in that you specify the device size as number * of sectors and then address the sectors with an offset. That means * with LBA 28 you shouldn't see an LBA of all ones. Still, we don't * check for that. */ int atacmd(Ataregs *p, uchar *dp, int ndp, int payload) // do the ata cmd { vlong lba; ushort *ip; int n; enum { MAXLBA28SIZE = 0x0fffffff }; extern int maxscnt; p->status = 0; switch (p->cmd) { default: p->status = DRDY | ERR; p->err = ABRT; return 0; case 0xe7: // flush cache return 0; case 0xec: // identify device if (p->sectors != 1 || ndp < 512) return -1; memmove(dp, ident, 512); ip = (ushort *)dp; if (size & ~MAXLBA28SIZE) setlba28(ip, MAXLBA28SIZE); else setlba28(ip, size); setlba48(ip, size); p->err = 0; p->status = DRDY; p->sectors = 0; return 0; case 0xe5: // check power mode p->err = 0; p->sectors = 0xff; // the device is active or idle p->status = DRDY; return 0; case 0x20: // read sectors case 0x30: // write sectors lba = p->lba & MAXLBA28SIZE; break; case 0x24: // read sectors ext case 0x34: // write sectors ext lba = p->lba & 0x0000ffffffffffffLL; // full 48 break; } // we ought not be here unless we are a read/write if (p->sectors > maxscnt || p->sectors*512 > ndp) return -1; if (lba + p->sectors > size) { p->err = IDNF; p->status = DRDY | ERR; p->lba = lba; return 0; } if (p->cmd == 0x20 || p->cmd == 0x24) n = getsec(bfd, dp, lba+offset, p->sectors); else { // packet should be big enough to contain the data if (payload < 512 * p->sectors) return -1; n = putsec(bfd, dp, lba+offset, p->sectors); } n /= 512; if (n != p->sectors) { p->err = ABRT; p->status = ERR; } else p->err = 0; p->status |= DRDY; p->lba += n; p->sectors -= n; return 0; } vblade-vblade-23/bpf.c000066400000000000000000000065311253741743600147240ustar00rootroot00000000000000// bpf.c: bpf packet filter for linux/freebsd #include "config.h" #include #include #include #include #include "dat.h" #include "fns.h" struct bpf_insn { ushort code; uchar jt; uchar jf; u_int32_t k; }; struct bpf_program { uint bf_len; struct bpf_insn *bf_insns; }; /* instruction classes */ #define BPF_CLASS(code) ((code) & 0x07) #define BPF_LD 0x00 #define BPF_LDX 0x01 #define BPF_ST 0x02 #define BPF_STX 0x03 #define BPF_ALU 0x04 #define BPF_JMP 0x05 #define BPF_RET 0x06 #define BPF_MISC 0x07 /* ld/ldx fields */ #define BPF_SIZE(code) ((code) & 0x18) #define BPF_W 0x00 #define BPF_H 0x08 #define BPF_B 0x10 #define BPF_MODE(code) ((code) & 0xe0) #define BPF_IMM 0x00 #define BPF_ABS 0x20 #define BPF_IND 0x40 #define BPF_MEM 0x60 #define BPF_LEN 0x80 #define BPF_MSH 0xa0 /* alu/jmp fields */ #define BPF_OP(code) ((code) & 0xf0) #define BPF_ADD 0x00 #define BPF_SUB 0x10 #define BPF_MUL 0x20 #define BPF_DIV 0x30 #define BPF_OR 0x40 #define BPF_AND 0x50 #define BPF_LSH 0x60 #define BPF_RSH 0x70 #define BPF_NEG 0x80 #define BPF_JA 0x00 #define BPF_JEQ 0x10 #define BPF_JGT 0x20 #define BPF_JGE 0x30 #define BPF_JSET 0x40 #define BPF_SRC(code) ((code) & 0x08) #define BPF_K 0x00 #define BPF_X 0x08 /* ret - BPF_K and BPF_X also apply */ #define BPF_RVAL(code) ((code) & 0x18) #define BPF_A 0x10 /* misc */ #define BPF_MISCOP(code) ((code) & 0xf8) #define BPF_TAX 0x00 #define BPF_TXA 0x80 /* macros for insn array initializers */ #define BPF_STMT(code, k) { (ushort)(code), 0, 0, k } #define BPF_JUMP(code, k, jt, jf) { (ushort)(code), jt, jf, k } void * create_bpf_program(int shelf, int slot) { struct bpf_program *bpf_program; struct bpf_insn insns[] = { /* CHECKTYPE: Load the type into register */ BPF_STMT(BPF_LD+BPF_H+BPF_ABS, 12), /* Does it match AoE Type (0x88a2)? No, goto INVALID */ BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, 0x88a2, 0, 10), /* Load the flags into register */ BPF_STMT(BPF_LD+BPF_B+BPF_ABS, 14), /* Check to see if the Resp flag is set */ BPF_STMT(BPF_ALU+BPF_AND+BPF_K, Resp), /* Yes, goto INVALID */ BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, 0, 0, 7), /* CHECKSHELF: Load the shelf number into register */ BPF_STMT(BPF_LD+BPF_H+BPF_ABS, 16), /* Does it match shelf number? Yes, goto CHECKSLOT */ BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, shelf, 1, 0), /* Does it match broadcast? No, goto INVALID */ BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, 0xffff, 0, 4), /* CHECKSLOT: Load the slot number into register */ BPF_STMT(BPF_LD+BPF_B+BPF_ABS, 18), /* Does it match shelf number? Yes, goto VALID */ BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, slot, 1, 0), /* Does it match broadcast? No, goto INVALID */ BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, 0xff, 0, 1), /* VALID: return -1 (allow the packet to be read) */ BPF_STMT(BPF_RET+BPF_K, -1), /* INVALID: return 0 (ignore the packet) */ BPF_STMT(BPF_RET+BPF_K, 0), }; if ((bpf_program = malloc(sizeof(struct bpf_program))) == NULL || (bpf_program->bf_insns = malloc(sizeof(insns))) == NULL) { perror("malloc"); exit(1); } bpf_program->bf_len = sizeof(insns)/sizeof(struct bpf_insn); memcpy(bpf_program->bf_insns, insns, sizeof(insns)); return (void *)bpf_program; } void free_bpf_program(void *bpf_program) { free(((struct bpf_program *) bpf_program)->bf_insns); free(bpf_program); } vblade-vblade-23/config.h000066400000000000000000000000761253741743600154250ustar00rootroot00000000000000#define _FILE_OFFSET_BITS 64 typedef unsigned long long u64; vblade-vblade-23/config/000077500000000000000000000000001253741743600152515ustar00rootroot00000000000000vblade-vblade-23/config/config.h.in000066400000000000000000000001041253741743600172670ustar00rootroot00000000000000#define _FILE_OFFSET_BITS 64 //u64 typedef unsigned long long u64; vblade-vblade-23/config/u64.c000066400000000000000000000001261253741743600160320ustar00rootroot00000000000000#include int main(void) { u64 n; printf("%d\n", (int) n+2); return 0; } vblade-vblade-23/contrib/000077500000000000000000000000001253741743600154445ustar00rootroot00000000000000vblade-vblade-23/contrib/README000066400000000000000000000005761253741743600163340ustar00rootroot00000000000000 The patches in the contrib directory enable features that either don't work completely, aren't well tested, or are of limited general use. They can be applied by using patch in the vblade source directory as follows: forfeit:~/vblade-12 # patch -p1 , 2008-04-21. vblade-vblade-23/contrib/vblade-17-aio.2.diff000066400000000000000000000325671253741743600207030ustar00rootroot00000000000000diff -uprN vblade-17.orig/aoe.c vblade-17/aoe.c --- vblade-17.orig/aoe.c 2008-06-09 10:53:07.000000000 -0400 +++ vblade-17/aoe.c 2008-06-09 11:05:23.000000000 -0400 @@ -8,6 +8,9 @@ #include #include #include +#include +#include +#include #include "dat.h" #include "fns.h" @@ -22,6 +25,11 @@ char config[Nconfig]; int nconfig = 0; int maxscnt = 2; char *ifname; +int queuepipe[2]; +int pktlen[Nplaces], pending[Nplaces]; +Ata *pkt[Nplaces]; +Ataregs regs[Nplaces]; +struct aiocb aiocb[Nplaces]; void aoead(int fd) // advertise the virtual blade @@ -78,32 +86,52 @@ getlba(uchar *p) } int -aoeata(Ata *p, int pktlen) // do ATA reqeust +aoeata(int place) // do ATA reqeust { - Ataregs r; - int len = 60; int n; + int len = 60; // minimum ethernet packet size - r.lba = getlba(p->lba); - r.sectors = p->sectors; - r.feature = p->err; - r.cmd = p->cmd; - if (atacmd(&r, (uchar *)(p+1), maxscnt*512, pktlen - sizeof(*p)) < 0) { - p->h.flags |= Error; - p->h.error = BadArg; + regs[place].lba = getlba(pkt[place]->lba); + regs[place].sectors = pkt[place]->sectors; + regs[place].feature = pkt[place]->err; + regs[place].cmd = pkt[place]->cmd; + n = atacmd(regs + place, (uchar *)(pkt[place] + 1), maxscnt*512, + pktlen[place] - sizeof(Ata), aiocb + place); + if (n < 0) { + pkt[place]->h.flags |= Error; + pkt[place]->h.error = BadArg; return len; + } else if (n > 0) { + pending[place] = 1; + return 0; + } + if (!(pkt[place]->aflag & Write) && (n = pkt[place]->sectors)) { + n -= regs[place].sectors; + len = sizeof (Ata) + (n*512); } - if (!(p->aflag & Write)) - if ((n = p->sectors)) { - n -= r.sectors; + pkt[place]->sectors = regs[place].sectors; + pkt[place]->err = regs[place].err; + pkt[place]->cmd = regs[place].status; + return len; +} + +int aoeatacomplete(int place, int pktlen) +{ + int n; + int len = 60; // minimum ethernet packet size + atacmdcomplete(regs + place, aiocb + place); + if (!(pkt[place]->aflag & Write) && (n = pkt[place]->sectors)) { + n -= regs[place].sectors; len = sizeof (Ata) + (n*512); } - p->sectors = r.sectors; - p->err = r.err; - p->cmd = r.status; + pkt[place]->sectors = regs[place].sectors; + pkt[place]->err = regs[place].err; + pkt[place]->cmd = regs[place].status; + pending[place] = 0; return len; } + #define QCMD(x) ((x)->vercmd & 0xf) // yes, this makes unnecessary copies. @@ -156,8 +184,9 @@ confcmd(Conf *p, int payload) // process } void -doaoe(Aoehdr *p, int n) +doaoe(int place) { + Aoehdr *p = (Aoehdr *) pkt[place]; int len; enum { // config query header size CHDR_SIZ = sizeof(Conf) - sizeof(((Conf *)0)->data), @@ -165,14 +194,16 @@ doaoe(Aoehdr *p, int n) switch (p->cmd) { case ATAcmd: - if (n < sizeof(Ata)) + if (pktlen[place] < sizeof(Ata)) + return; + len = aoeata(place); + if (len == 0) return; - len = aoeata((Ata*)p, n); break; case Config: - if (n < CHDR_SIZ) + if (pktlen[place] < CHDR_SIZ) return; - len = confcmd((Conf *)p, n - CHDR_SIZ); + len = confcmd((Conf *)p, pktlen[place] - CHDR_SIZ); if (len == 0) return; break; @@ -193,25 +224,129 @@ doaoe(Aoehdr *p, int n) } void +doaoecomplete(int place) +{ + Aoehdr *p = (Aoehdr *) pkt[place]; + int len = aoeatacomplete(place, pktlen[place]); + memmove(p->dst, p->src, 6); + memmove(p->src, mac, 6); + p->maj = htons(shelf); + p->min = slot; + p->flags |= Resp; + if (putpkt(sfd, (uchar *) p, len) == -1) { + perror("write to network"); + exit(1); + } + +} + +// allocate the buffer so that the ata data area +// is page aligned for o_direct on linux + +void * +bufalloc(void **buf, long len) +{ + long psize; + unsigned long n; + + psize = sysconf(_SC_PAGESIZE); + if (psize == -1) { + perror("sysconf"); + exit(EXIT_FAILURE); + } + n = len/psize + 3; + *buf = malloc(psize * n); + if (!*buf) { + perror("malloc"); + exit(EXIT_FAILURE); + } + n = (unsigned long) *buf; + n += psize * 2; + n &= ~(psize - 1); + return (void *) (n - sizeof (Ata)); +} + +void +sigio(int signo) +{ + const char dummy = 0; + write(queuepipe[1], &dummy, 1); +} + +void aoe(void) { Aoehdr *p; - uchar *buf; - int n, sh; + char dummy; + int n, place, sh; enum { bufsz = 1<<16, }; - - buf = malloc(bufsz); + sigset_t mask, oldmask; + struct sigaction sigact; + struct pollfd pollfds[2]; + void *freeme[Nplaces]; + + for (n = 0; n < Nplaces; n++) { + pkt[n] = bufalloc(freeme + n, bufsz); + pending[n] = 0; + } aoead(sfd); + pipe(queuepipe); + fcntl(queuepipe[0], F_SETFL, O_NONBLOCK); + fcntl(queuepipe[1], F_SETFL, O_NONBLOCK); + + sigemptyset(&sigact.sa_mask); + sigact.sa_flags = 0; + sigact.sa_sigaction = (void *) sigio; + sigaction(SIGIO, &sigact, NULL); + + sigemptyset(&mask); + sigaddset(&mask, SIGIO); + sigprocmask(SIG_BLOCK, &mask, &oldmask); + + pollfds[0].fd = queuepipe[0]; + pollfds[1].fd = sfd; + pollfds[0].events = pollfds[1].events = POLLIN; + for (;;) { - n = getpkt(sfd, buf, bufsz); - if (n < 0) { + sigprocmask(SIG_SETMASK, &oldmask, NULL); + n = poll(pollfds, 2, 1000); + sigprocmask(SIG_BLOCK, &mask, NULL); + + if (n < 0 && errno != EINTR) { + perror("poll"); + continue; + } else if (n == 0 || pollfds[0].revents & POLLIN) { + while(read(queuepipe[0], &dummy, 1) > 0); + for (place = 0; place < Nplaces; place++) { + if (!pending[place]) + continue; + if (aio_error(aiocb + place) == EINPROGRESS) + continue; + doaoecomplete(place); + pollfds[1].events = POLLIN; + } + } + + if ((pollfds[1].revents & POLLIN) == 0) + continue; + + for (place = 0; pending[place] && place < Nplaces; place++); + if (place >= Nplaces) { + pollfds[1].events = 0; + continue; + } + + pktlen[place] = getpkt(sfd, (uchar *) pkt[place], bufsz); + if (pktlen[place] < 0) { + if (errno == EINTR) + continue; perror("read network"); exit(1); } - if (n < sizeof(Aoehdr)) + if (pktlen[place] < sizeof(Aoehdr)) continue; - p = (Aoehdr *) buf; + p = (Aoehdr *) pkt[place]; if (ntohs(p->type) != 0x88a2) continue; if (p->flags & Resp) @@ -223,9 +358,10 @@ aoe(void) continue; if (nmasks && !maskok(p->src)) continue; - doaoe(p, n); + doaoe(place); } - free(buf); + for (place = 0; place < Nplaces; place++) + free(freeme[place]); } void @@ -317,7 +453,7 @@ main(int argc, char **argv) } if (s.st_mode & (S_IWUSR|S_IWGRP|S_IWOTH)) omode = O_RDWR; - bfd = open(argv[3], omode); + bfd = opendisk(argv[3], omode); if (bfd == -1) { perror("open"); exit(1); diff -uprN vblade-17.orig/ata.c vblade-17/ata.c --- vblade-17.orig/ata.c 2008-06-09 10:53:07.000000000 -0400 +++ vblade-17/ata.c 2008-06-09 11:05:23.000000000 -0400 @@ -3,6 +3,8 @@ #include #include #include +#include +#include #include "dat.h" #include "fns.h" @@ -98,7 +100,7 @@ atainit(void) * check for that. */ int -atacmd(Ataregs *p, uchar *dp, int ndp, int payload) // do the ata cmd +atacmd(Ataregs *p, uchar *dp, int ndp, int payload, struct aiocb *aiocb) // do the ata cmd { vlong lba; ushort *ip; @@ -155,14 +157,29 @@ atacmd(Ataregs *p, uchar *dp, int ndp, i return 0; } if (p->cmd == 0x20 || p->cmd == 0x24) - n = getsec(bfd, dp, lba, p->sectors); + n = getsec(bfd, dp, lba, p->sectors, aiocb); else { // packet should be big enough to contain the data if (payload < 512 * p->sectors) return -1; - n = putsec(bfd, dp, lba, p->sectors); + n = putsec(bfd, dp, lba, p->sectors, aiocb); } - n /= 512; + if (n < 0) { + p->err = ABRT; + p->status = ERR|DRDY; + p->lba += n; + p->sectors -= n; + return 0; + } + return 1; // callback expected +} + + +int +atacmdcomplete(Ataregs *p, struct aiocb *aiocb) // complete the ata cmd +{ + int n; + n = aio_return(aiocb) / 512; if (n != p->sectors) { p->err = ABRT; p->status = ERR; @@ -173,4 +190,3 @@ atacmd(Ataregs *p, uchar *dp, int ndp, i p->sectors -= n; return 0; } - diff -uprN vblade-17.orig/dat.h vblade-17/dat.h --- vblade-17.orig/dat.h 2008-06-09 10:53:07.000000000 -0400 +++ vblade-17/dat.h 2008-06-09 11:05:23.000000000 -0400 @@ -111,6 +111,8 @@ enum { Nconfig = 1024, Bufcount = 16, + + Nplaces = 32, }; int shelf, slot; diff -uprN vblade-17.orig/fns.h vblade-17/fns.h --- vblade-17.orig/fns.h 2008-06-09 10:53:07.000000000 -0400 +++ vblade-17/fns.h 2008-06-09 11:07:21.000000000 -0400 @@ -15,7 +15,8 @@ int maskok(uchar *); // ata.c void atainit(void); -int atacmd(Ataregs *, uchar *, int, int); +int atacmd(Ataregs *, uchar *, int, int, struct aiocb *); +int atacmdcomplete(Ataregs *, struct aiocb *); // bpf.c @@ -26,8 +27,9 @@ void free_bpf_program(void *); int dial(char *); int getea(int, char *, uchar *); -int putsec(int, uchar *, vlong, int); -int getsec(int, uchar *, vlong, int); +int opendisk(const char *, int); +int putsec(int, uchar *, vlong, int, struct aiocb *); +int getsec(int, uchar *, vlong, int, struct aiocb *); int putpkt(int, uchar *, int); int getpkt(int, uchar *, int); vlong getsize(int); diff -uprN vblade-17.orig/freebsd.c vblade-17/freebsd.c --- vblade-17.orig/freebsd.c 2008-06-09 10:53:07.000000000 -0400 +++ vblade-17/freebsd.c 2008-06-09 11:05:23.000000000 -0400 @@ -209,19 +209,40 @@ getea(int s, char *eth, uchar *ea) return(0); } - int -getsec(int fd, uchar *place, vlong lba, int nsec) +opendisk(const char *disk, int omode) { - return pread(fd, place, nsec * 512, lba * 512); + return open(disk, omode); } int -putsec(int fd, uchar *place, vlong lba, int nsec) -{ - return pwrite(fd, place, nsec * 512, lba * 512); +getsec(int fd, uchar *place, vlong lba, int nsec, struct aiocb *aiocb) +{ + bzero((char *) aiocb, sizeof(struct aiocb)); + aiocb->aio_fildes = fd; + aiocb->aio_buf = place; + aiocb->aio_nbytes = nsec * 512; + aiocb->aio_offset = lba * 512; + aiocb->aio_sigevent.sigev_notify = SIGEV_SIGNAL; + aiocb->aio_sigevent.sigev_signo = SIGIO; + aiocb->aio_sigevent.sigev_value.sival_ptr = aiocb; + return aio_read(aiocb); } +int +putsec(int fd, uchar *place, vlong lba, int nsec, struct aiocb *aiocb) +{ + bzero((char *) aiocb, sizeof(struct aiocb)); + aiocb->aio_fildes = fd; + aiocb->aio_buf = place; + aiocb->aio_nbytes = nsec * 512; + aiocb->aio_offset = lba * 512; + aiocb->aio_sigevent.sigev_notify = SIGEV_SIGNAL; + aiocb->aio_sigevent.sigev_signo = SIGIO; + aiocb->aio_sigevent.sigev_value.sival_ptr = aiocb; + return aio_write(aiocb); +} + static int pktn = 0; static uchar *pktbp = NULL; diff -uprN vblade-17.orig/linux.c vblade-17/linux.c --- vblade-17.orig/linux.c 2008-06-09 10:53:07.000000000 -0400 +++ vblade-17/linux.c 2008-06-09 11:05:23.000000000 -0400 @@ -1,5 +1,6 @@ // linux.c: low level access routines for Linux #include "config.h" +#define _GNU_SOURCE #include #include #include @@ -22,6 +23,9 @@ #include #include #include +#include +#include +#include #include "dat.h" #include "fns.h" @@ -29,8 +33,6 @@ int getindx(int, char *); int getea(int, char *, uchar *); - - int dial(char *eth) // get us a raw connection to an interface { @@ -84,7 +86,7 @@ getea(int s, char *name, uchar *ea) struct ifreq xx; int n; - strcpy(xx.ifr_name, name); + strcpy(xx.ifr_name, name); n = ioctl(s, SIOCGIFHWADDR, &xx); if (n == -1) { perror("Can't get hw addr"); @@ -110,17 +112,37 @@ getmtu(int s, char *name) } int -getsec(int fd, uchar *place, vlong lba, int nsec) +opendisk(const char *disk, int omode) +{ + return open(disk, omode|O_DIRECT); +} + +int +getsec(int fd, uchar *place, vlong lba, int nsec, struct aiocb *aiocb) { - lseek(fd, lba * 512, 0); - return read(fd, place, nsec * 512); + bzero((char *) aiocb, sizeof(struct aiocb)); + aiocb->aio_fildes = fd; + aiocb->aio_buf = place; + aiocb->aio_nbytes = nsec * 512; + aiocb->aio_offset = lba * 512; + aiocb->aio_sigevent.sigev_notify = SIGEV_SIGNAL; + aiocb->aio_sigevent.sigev_signo = SIGIO; + aiocb->aio_sigevent.sigev_value.sival_ptr = aiocb; + return aio_read(aiocb); } int -putsec(int fd, uchar *place, vlong lba, int nsec) +putsec(int fd, uchar *place, vlong lba, int nsec, struct aiocb *aiocb) { - lseek(fd, lba * 512, 0); - return write(fd, place, nsec * 512); + bzero((char *) aiocb, sizeof(struct aiocb)); + aiocb->aio_fildes = fd; + aiocb->aio_buf = place; + aiocb->aio_nbytes = nsec * 512; + aiocb->aio_offset = lba * 512; + aiocb->aio_sigevent.sigev_notify = SIGEV_SIGNAL; + aiocb->aio_sigevent.sigev_signo = SIGIO; + aiocb->aio_sigevent.sigev_value.sival_ptr = aiocb; + return aio_write(aiocb); } int diff -uprN vblade-17.orig/linux.h vblade-17/linux.h --- vblade-17.orig/linux.h 2008-06-09 10:53:07.000000000 -0400 +++ vblade-17/linux.h 2008-06-09 11:05:23.000000000 -0400 @@ -6,6 +6,6 @@ typedef long long vlong; int dial(char *); int getindx(int, char *); int getea(int, char *, uchar *); -int getsec(int, uchar *, vlong, int); -int putsec(int, uchar *, vlong, int); +int getsec(int, uchar *, vlong, int, struct aiocb *); +int putsec(int, uchar *, vlong, int, struct aiocb *); vlong getsize(int); diff -uprN vblade-17.orig/makefile vblade-17/makefile --- vblade-17.orig/makefile 2008-06-09 10:53:07.000000000 -0400 +++ vblade-17/makefile 2008-06-09 11:05:23.000000000 -0400 @@ -13,7 +13,7 @@ CFLAGS += -Wall -g -O2 CC = gcc vblade: $O - ${CC} -o vblade $O + ${CC} -lrt -o vblade $O aoe.o : aoe.c config.h dat.h fns.h makefile ${CC} ${CFLAGS} -c $< vblade-vblade-23/dat.h000066400000000000000000000044571253741743600147370ustar00rootroot00000000000000/* dat.h: include file for vblade AoE target */ #define nil ((void *)0) /* * tunable variables */ enum { VBLADE_VERSION = 22, // Firmware version FWV = 0x4000 + VBLADE_VERSION, }; #undef major #undef minor #undef makedev #define major(x) ((x) >> 24 & 0xFF) #define minor(x) ((x) & 0xffffff) #define makedev(x, y) ((x) << 24 | (y)) typedef unsigned char uchar; //typedef unsigned short ushort; #ifdef __FreeBSD__ typedef unsigned long ulong; #else //typedef unsigned long ulong; #endif typedef long long vlong; typedef struct Aoehdr Aoehdr; typedef struct Ata Ata; typedef struct Conf Conf; typedef struct Ataregs Ataregs; typedef struct Mdir Mdir; typedef struct Aoemask Aoemask; typedef struct Aoesrr Aoesrr; struct Ataregs { vlong lba; uchar cmd; uchar status; uchar err; uchar feature; uchar sectors; }; struct Aoehdr { uchar dst[6]; uchar src[6]; ushort type; uchar flags; uchar error; ushort maj; uchar min; uchar cmd; uchar tag[4]; }; struct Ata { Aoehdr h; uchar aflag; uchar err; uchar sectors; uchar cmd; uchar lba[6]; uchar resvd[2]; }; struct Conf { Aoehdr h; ushort bufcnt; ushort firmware; uchar scnt; uchar vercmd; ushort len; uchar data[1024]; }; // mask directive struct Mdir { uchar res; uchar cmd; uchar mac[6]; }; struct Aoemask { Aoehdr h; uchar res; uchar cmd; uchar merror; uchar nmacs; // struct Mdir m[0]; }; struct Aoesrr { Aoehdr h; uchar rcmd; uchar nmacs; // uchar mac[6][nmacs]; }; enum { AoEver = 1, ATAcmd = 0, // command codes Config, Mask, Resrel, Resp = (1<<3), // flags Error = (1<<2), BadCmd = 1, BadArg, DevUnavailable, ConfigErr, BadVersion, Res, Write = (1<<0), Async = (1<<1), Device = (1<<4), Extend = (1<<6), Qread = 0, Qtest, Qprefix, Qset, Qfset, Nretries = 3, Nconfig = 1024, Bufcount = 16, /* mask commands */ Mread= 0, Medit, /* mask directives */ MDnop= 0, MDadd, MDdel, /* mask errors */ MEunspec= 1, MEbaddir, MEfull, /* header sizes, including aoe hdr */ Naoehdr= 24, Natahdr= Naoehdr + 12, Ncfghdr= Naoehdr + 8, Nmaskhdr= Naoehdr + 4, Nsrrhdr= Naoehdr + 2, Nserial= 20, }; int shelf, slot; ulong aoetag; uchar mac[6]; int bfd; // block file descriptor int sfd; // socket file descriptor vlong size; // size of vblade vlong offset; char *progname; char serial[Nserial+1]; vblade-vblade-23/fns.h000066400000000000000000000012531253741743600147440ustar00rootroot00000000000000// fns.h: function prototypes // aoe.c void aoe(void); void aoeinit(void); void aoequery(void); void aoeconfig(void); void aoead(int); void aoeflush(int, int); void aoetick(void); void aoerequest(int, int, vlong, int, uchar *, int); int maskok(uchar *); int rrok(uchar *); // ata.c void atainit(void); int atacmd(Ataregs *, uchar *, int, int); // bpf.c void * create_bpf_program(int, int); void free_bpf_program(void *); // os specific int dial(char *, int); int getea(int, char *, uchar *); int putsec(int, uchar *, vlong, int); int getsec(int, uchar *, vlong, int); int putpkt(int, uchar *, int); int getpkt(int, uchar *, int); vlong getsize(int); int getmtu(int, char *); vblade-vblade-23/freebsd.c000066400000000000000000000131361253741743600155660ustar00rootroot00000000000000/* * Copyright (c) 2005, Stacey Son * All rights reserved. */ // freebsd.c: low level access routines for FreeBSD #include "config.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "dat.h" #include "fns.h" #define BPF_DEV "/dev/bpf0" /* Packet buffer for getpkt() */ static uchar *pktbuf = NULL; static int pktbufsz = 0; int dial(char *eth, int bufcnt) { char m; int fd = -1; struct bpf_version bv; u_int v; unsigned bufsize, linktype; char device[sizeof BPF_DEV]; struct ifreq ifr; struct bpf_program *bpf_program = create_bpf_program(shelf, slot); strncpy(device, BPF_DEV, sizeof BPF_DEV); /* find a bpf device we can use, check /dev/bpf[0-9] */ for (m = '0'; m <= '9'; m++) { device[sizeof(BPF_DEV)-2] = m; if ((fd = open(device, O_RDWR)) > 0) break; } if (fd < 0) { perror("open"); return -1; } if (ioctl(fd, BIOCVERSION, &bv) < 0) { perror("BIOCVERSION"); goto bad; } if (bv.bv_major != BPF_MAJOR_VERSION || bv.bv_minor < BPF_MINOR_VERSION) { fprintf(stderr, "kernel bpf filter out of date\n"); goto bad; } /* * Try finding a good size for the buffer; 65536 may be too * big, so keep cutting it in half until we find a size * that works, or run out of sizes to try. * */ for (v = 65536; v != 0; v >>= 1) { (void) ioctl(fd, BIOCSBLEN, (caddr_t)&v); (void)strncpy(ifr.ifr_name, eth, sizeof(ifr.ifr_name)); if (ioctl(fd, BIOCSETIF, (caddr_t)&ifr) >= 0) break; /* that size worked; we're done */ if (errno != ENOBUFS) { fprintf(stderr, "BIOCSETIF: %s: %s\n", eth, strerror(errno)); goto bad; } } if (v == 0) { fprintf(stderr, "BIOCSBLEN: %s: No buffer size worked\n", eth); goto bad; } /* Allocate memory for the packet buffer */ pktbufsz = v; if ((pktbuf = malloc(pktbufsz)) == NULL) { perror("malloc"); goto bad; } /* Don't wait for buffer to be full or timeout */ v = 1; if (ioctl(fd, BIOCIMMEDIATE, &v) < 0) { perror("BIOCIMMEDIATE"); goto bad; } /* Only read incoming packets */ v = 0; if (ioctl(fd, BIOCSSEESENT, &v) < 0) { perror("BIOCSSEESENT"); goto bad; } /* Don't complete ethernet hdr */ v = 1; if (ioctl(fd, BIOCSHDRCMPLT, &v) < 0) { perror("BIOCSHDRCMPLT"); goto bad; } /* Get the data link layer type. */ if (ioctl(fd, BIOCGDLT, (caddr_t)&v) < 0) { perror("BIOCGDLT"); goto bad; } linktype = v; /* Get the filter buf size */ if (ioctl(fd, BIOCGBLEN, (caddr_t)&v) < 0) { perror("BIOCGBLEN"); goto bad; } bufsize = v; if (ioctl(fd, BIOCSETF, (caddr_t)bpf_program) < 0) { perror("BIOSETF"); goto bad; } free_bpf_program(bpf_program); return(fd); bad: free_bpf_program(bpf_program); close(fd); return(-1); } int getea(int s, char *eth, uchar *ea) { int mib[6]; size_t len; char *buf, *next, *end; struct if_msghdr *ifm; struct sockaddr_dl *sdl; mib[0] = CTL_NET; mib[1] = AF_ROUTE; mib[2] = 0; mib[3] = AF_LINK; mib[4] = NET_RT_IFLIST; mib[5] = 0; if (sysctl(mib, 6, NULL, &len, NULL, 0) < 0) { return (-1); } if (!(buf = (char *) malloc(len))) { return (-1); } if (sysctl(mib, 6, buf, &len, NULL, 0) < 0) { free(buf); return (-1); } end = buf + len; for (next = buf; next < end; next += ifm->ifm_msglen) { ifm = (struct if_msghdr *)next; if (ifm->ifm_type == RTM_IFINFO) { sdl = (struct sockaddr_dl *)(ifm + 1); if (strncmp(&sdl->sdl_data[0], eth, sdl->sdl_nlen) == 0) { memcpy(ea, LLADDR(sdl), ETHER_ADDR_LEN); break; } } } free(buf); return(0); } int getsec(int fd, uchar *place, vlong lba, int nsec) { return pread(fd, place, nsec * 512, lba * 512); } int putsec(int fd, uchar *place, vlong lba, int nsec) { return pwrite(fd, place, nsec * 512, lba * 512); } static int pktn = 0; static uchar *pktbp = NULL; int getpkt(int fd, uchar *buf, int sz) { register struct bpf_hdr *bh; register int pktlen, retlen; if (pktn <= 0) { if ((pktn = read(fd, pktbuf, pktbufsz)) < 0) { perror("read"); exit(1); } pktbp = pktbuf; } bh = (struct bpf_hdr *) pktbp; retlen = (int) bh->bh_caplen; /* This memcpy() is currently needed */ memcpy(buf, (void *)(pktbp + bh->bh_hdrlen), retlen > sz ? sz : retlen); pktlen = bh->bh_hdrlen + bh->bh_caplen; pktbp = pktbp + BPF_WORDALIGN(pktlen); pktn -= (int) BPF_WORDALIGN(pktlen); return retlen; } int putpkt(int fd, uchar *buf, int sz) { return write(fd, buf, sz); } int getmtu(int fd, char *name) { struct ifreq xx; int s, n; s = socket(AF_INET, SOCK_RAW, 0); if (s == -1) { perror("Can't get mtu"); return 1500; } xx.ifr_addr.sa_family = AF_INET; snprintf(xx.ifr_name, sizeof xx.ifr_name, "%s", name); n = ioctl(s,SIOCGIFMTU, &xx); if (n == -1) { perror("Can't get mtu"); return 1500; } close(s); return xx.ifr_mtu; } vlong getsize(int fd) { vlong size; struct stat s; int n; struct disklabel lab; // Try getting disklabel from block dev if ((n = ioctl(fd, DIOCGDINFO, lab)) != -1) { size = lab.d_secsize * lab.d_secperunit; } else { // must not be a block special dev if (fstat(fd, &s) == -1) { perror("getsize"); exit(1); } size = s.st_size; } printf("ioctl returned %d\n", n); printf("%lld bytes\n", size); return size; } vblade-vblade-23/linux.c000066400000000000000000000060611253741743600153120ustar00rootroot00000000000000// linux.c: low level access routines for Linux #define _GNU_SOURCE #include "config.h" #include #include #include #include #include #include #include /* for the glibc version number */ #if __GLIBC__ >= 2 && __GLIBC_MINOR >= 1 #include #include /* the L2 protocols */ #else #include #include #include /* The L2 protocols */ #endif #include #include #include #include #include #include #include #include "dat.h" #include "fns.h" int getindx(int, char *); int getea(int, char *, uchar *); int dial(char *eth, int bufcnt) // get us a raw connection to an interface { int i, n, s; struct sockaddr_ll sa; enum { aoe_type = 0x88a2 }; memset(&sa, 0, sizeof sa); s = socket(PF_PACKET, SOCK_RAW, htons(aoe_type)); if (s == -1) { perror("got bad socket"); return -1; } i = getindx(s, eth); sa.sll_family = AF_PACKET; sa.sll_protocol = htons(0x88a2); sa.sll_ifindex = i; n = bind(s, (struct sockaddr *)&sa, sizeof sa); if (n == -1) { perror("bind funky"); return -1; } struct bpf_program { ulong bf_len; void *bf_insns; } *bpf_program = create_bpf_program(shelf, slot); setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER, bpf_program, sizeof(*bpf_program)); free_bpf_program(bpf_program); n = bufcnt * getmtu(s, eth); if (setsockopt(s, SOL_SOCKET, SO_SNDBUF, &n, sizeof(n)) < 0) perror("setsockopt SOL_SOCKET, SO_SNDBUF"); if (setsockopt(s, SOL_SOCKET, SO_RCVBUF, &n, sizeof(n)) < 0) perror("setsockopt SOL_SOCKET, SO_RCVBUF"); return s; } int getindx(int s, char *name) // return the index of device 'name' { struct ifreq xx; int n; snprintf(xx.ifr_name, sizeof xx.ifr_name, "%s", name); n = ioctl(s, SIOCGIFINDEX, &xx); if (n == -1) return -1; return xx.ifr_ifindex; } int getea(int s, char *name, uchar *ea) { struct ifreq xx; int n; snprintf(xx.ifr_name, sizeof xx.ifr_name, "%s", name); n = ioctl(s, SIOCGIFHWADDR, &xx); if (n == -1) { perror("Can't get hw addr"); return 0; } memmove(ea, xx.ifr_hwaddr.sa_data, 6); return 1; } int getmtu(int s, char *name) { struct ifreq xx; int n; snprintf(xx.ifr_name, sizeof xx.ifr_name, "%s", name); n = ioctl(s, SIOCGIFMTU, &xx); if (n == -1) { perror("Can't get mtu"); return 1500; } return xx.ifr_mtu; } int getsec(int fd, uchar *place, vlong lba, int nsec) { return pread(fd, place, nsec * 512, lba * 512); } int putsec(int fd, uchar *place, vlong lba, int nsec) { return pwrite(fd, place, nsec * 512, lba * 512); } int getpkt(int fd, uchar *buf, int sz) { return read(fd, buf, sz); } int putpkt(int fd, uchar *buf, int sz) { return write(fd, buf, sz); } vlong getsize(int fd) { vlong size; struct stat s; int n; n = ioctl(fd, BLKGETSIZE64, &size); if (n == -1) { // must not be a block special n = fstat(fd, &s); if (n == -1) { perror("getsize"); exit(1); } size = s.st_size; } return size; } vblade-vblade-23/linux.h000066400000000000000000000004041253741743600153120ustar00rootroot00000000000000// linux.h: header for linux.c typedef unsigned char uchar; typedef long long vlong; int dial(char *); int getindx(int, char *); int getea(int, char *, uchar *); int getsec(int, uchar *, vlong, int); int putsec(int, uchar *, vlong, int); vlong getsize(int); vblade-vblade-23/makefile000066400000000000000000000015521253741743600155070ustar00rootroot00000000000000# makefile for vblade # see README for others PLATFORM=linux prefix = /usr sbindir = ${prefix}/sbin sharedir = ${prefix}/share mandir = ${sharedir}/man O=aoe.o bpf.o ${PLATFORM}.o ata.o CFLAGS += -Wall -g -O2 CC = gcc vblade: $O ${CC} -o vblade $O aoe.o : aoe.c config.h dat.h fns.h makefile ${CC} ${CFLAGS} -c $< ${PLATFORM}.o : ${PLATFORM}.c config.h dat.h fns.h makefile ${CC} ${CFLAGS} -c $< ata.o : ata.c config.h dat.h fns.h makefile ${CC} ${CFLAGS} -c $< bpf.o : bpf.c ${CC} ${CFLAGS} -c $< config.h : config/config.h.in makefile @if ${CC} ${CFLAGS} config/u64.c > /dev/null 2>&1; then \ sh -xc "cp config/config.h.in config.h"; \ else \ sh -xc "sed 's!^//u64 !!' config/config.h.in > config.h"; \ fi clean : rm -f $O vblade install : vblade vbladed install vblade ${sbindir}/ install vbladed ${sbindir}/ install vblade.8 ${mandir}/man8/ vblade-vblade-23/sparsefile000077500000000000000000000012221253741743600160640ustar00rootroot00000000000000#! /bin/sh # sparsefile - create sparse files conveniently # # depends on dd and dc commands. usage() { echo "usage: `basename $0` {10M|10G|10T} {filename}" 1>&2 } size=$1 if test "$size" = "-h"; then usage exit fi fnam=$2 die() { usage exit 1 } set -e units=`echo "$size" | sed 's!.*\(.\)$!\1!'` n=`echo "$size" | sed 's!\(.*\).$!\1!'` test "$units" && test "$n" && test "$units" != "$n" || die case "$units" in M) seek=`echo "$n 1024 * 1 - p" | dc` ;; G) seek=`echo "$n 1024 1024 * * 1 - p" | dc` ;; T) seek=`echo "$n 1024 1024 1024 * * * 1 - p" | dc` ;; *) die ;; esac sh -xc "dd bs=1k count=1 if=/dev/zero of=$fnam seek=$seek" ls -lh "$fnam" vblade-vblade-23/vblade.8000066400000000000000000000052711253741743600153370ustar00rootroot00000000000000.TH vblade 8 .SH NAME vblade, vbladed \- export data via ATA over Ethernet .SH SYNOPSIS .nf .B vblade [ -m mac[,mac...] ] shelf slot netif filename .fi .SH DESCRIPTION The .I vblade command starts a process that uses raw sockets to perform ATA over Ethernet, acting like a virtual EtherDrive (R) blade. .PP The .I vbladed script can be used to daemonize the vblade process, detaching it from your terminal and sending its output to the system logs. .SS Arguments .TP \fBshelf\fP This should be the shelf address (major AoE address) of the AoE device to create. .TP \fBslot\fP This should be the slot address (minor AoE address) of the AoE device to create. .TP \fBnetif\fP The name of the ethernet network interface to use for AoE communications. .TP \fBfilename\fP The name of the regular file or block device to export. .SS Options .TP \fB-b\fP The -b flag takes an argument, the advertised buffer count, specifying the maximum number of outstanding messages the server can queue for processing. .TP \fB-d\fP The -d flag selects O_DIRECT mode for accessing the underlying block device. .TP \fB-s\fP The -s flag selects O_SYNC mode for accessing the underlying block device, so all writes are committed to disk before returning to the client. .TP \fB-r\fP The -r flag restricts the export of the device to be read-only. .TP \fB-m\fP The -m flag takes an argument, a comma separated list of MAC addresses permitted access to the vblade. A MAC address can be specified in upper or lower case, with or without colons. .TP \fB-o\fP The -o flag takes an argument, the number of sectors at the beginning of the exported file that are excluded from AoE export (default zero). .TP \fB-l\fP The -l flag takes an argument, the number of sectors to export. Defaults to the file size in sectors minus the offset. .SH EXAMPLE In this example, the root user on a host named .I nai exports a file named "3TB" to the LAN on eth0 using AoE shelf address 11 and slot address 1. The process runs in the foreground. Using .I vbladed would have resulted in the process running as a daemon in the background. .IP .EX .nf nai:~# vblade 11 1 eth0 /data/3TB .fi .EE .SH NOTES AND WARNINGS Users of Jumbo frames should read the README file distributed with .I vblade to learn about a workaround for kernel buffering limitations. .PP At least one AoE initiator (WinAoE) has been found to enforce legacy CHS geometry for drives by discarding sectors. You should ensure that the underlaying regular file or block device size is a multiple of 8225280 bytes (255 heads, 63 sectors/track, 512 bytes/sector) if you encounter filesystem corruption. .SH REPORTING BUGS Please report bugs to the aoetools-discuss mailing list. .SH AUTHOR Brantley Coile (brantley@coraid.com) vblade-vblade-23/vbladed000077500000000000000000000002411253741743600153300ustar00rootroot00000000000000#! /bin/sh # run a vblade daemon using a logger process # output is directed to syslogd # sh -c "`dirname $0`/vblade $* < /dev/null 2>&1 | logger -t vbladed" &