✄ VMIVME/SW-RFM1 Network and Shared Memory Driver ✪✄✰✮✄✯❊❘�✄✬❙◗❚❊❘ • Shared memory support for all VMIC Reflective Memory (RM) products for VMEbus • TCP/IP internetworking protocols supported for fiber-optic interfaces on some hosts • Highly configurable to interoperate with legacy systems • Device driver is a loadable module on some platforms • Full C language source code provided • Supports VMIVME-5550, -5576, -5588, and -5588DMA Introduction The VMIVME/SW-RFM1 Network and Shared Memory Driver provides an applications program with three convenient methods for transmit the interrupt event to a host without an RM device driver, exchanging data among hosts connected to the same Reflective that RM interrupt event will be ignored. An RM device driver is Memory network: necessary to receive notification of RM interrupt events. Unless TCP/IP networking support is enabled, there are three RM event 1) Programmed I/O (Peek and Poke) interrupts available to an applications program. Generally, with An applications program can treat the memory on the TCP/IP networking enabled, one RM event interrupt is free for Reflective Memory device as ordinary memory in which the applications programs. However, when using TCP/IP on operating program can use ordinary load and store accesses. systems that do not allow multiple drivers to process Reflective Memory interrupts, all interrupts are, in effect, used by TCP/IP, 2) Direct Memory Access (DMA - Some Configurations) leaving none for application programs. On systems where the performance penalty for individual VMEbus accesses is unacceptably high, the driver utilizes the DMA feature available in order to transfer data in variable-sized blocks. On UNIX systems, an applications program uses the familiar lseek(2)/read(2)/write(2) system calls to perform the data movement, while on other operating systems a VMIC-provided Application Program Interface (API) is used for data movement. Ordering Options Jan. 23, 2002 820-000099-000 L ABC –D EF 3) TCP/IP Protocols (VxWorks Option Only) VMIVME/SW-RFM1 –0 – Full support for the internetworking TCP/IP protocols allows A = 0 (Option reserved for future use) peer-to-peer communication between applications without the BC = Delivery Media Type need to design and implement custom communications 00 = Reserved protocols. Standard programs such as FTP, TELNET, 01 = Reserved 02 = Reserved RLOGIN, and X-Windows can take advantage of the high data 03 = Reserved transfer rates of a Reflective Memory network to achieve 04 = Reserved 05 = Tape, TK-50, 1/2-inch, UNIX tar impressive performance. Network management is simplified by ® 06 = Floppy, 3.5-inch, DSHD, MS-DOS the full support of the standard Address Resolution Protocol 07 = Floppy, 3.5-inch, DSHD, UNIX tar (ARP), Reverse Address Resolution Protocol (RARP), and 08 = Tape, TK-50, 1/2-inch, VMS Backup 09 = Reserved Domain Name Service (DNS). User’s applications programs 10 = Digital Audio Tape, 8 mm, UNIX tar benefit from the familiar client-server socket(2) interface. This 11 = Digital Audio Tape, 4 mm, UNIX tar driver only supports single installations of RM devices for 12 = Digital Audio Tape, 4 mm, VMS Backup 13 = CD-ROM, 640 M, ISO-9660 TCP/IP protocol. ® 14 = Floppy, 3.5-inch DSHD, Windows NT (NTFS) OS DEF =Target Operating System 3 005 = Sun Solaris 2.x Reflective Memory Interrupts 2 030 = VxWorks 5.4 1 205 = Silicon Graphics IRIX 5.x Host computer platforms whose operating systems provide the 1 210 = Silicon Graphics IRIX 6.x 3 mmap(2) system call, or those platforms which do not use virtual 701 = HP-UX 10.x 3 memory, often allow an applications program to access the 711 = HP-RT 3.x 3 805 = DEC UNIX 4.0 Reflective Memory contents without requiring a special device driver for the Reflective Memory. Applications on these hosts can Notes share data using the Reflective Memory hardware without using a 1. Challenge computer only. 3 device driver. Programs on these hosts can originate RM interrupts; 2. Nominal target processor type is x86, but can also be compiled for Motorola 68k or 3 DEC Alpha . Distribution includes optional makefile templates. that is, they can transmit an RM event interrupt to other computers 3. Unsupported. Source code is available. on the RM network. Without an RM device driver, RM event For Ordering Information, Call: interrupts cannot be received: even if another RM device attempts to 1-800-322-3616 or 1-256-880-0444 • FAX (256) 882-0859 E-mail: info@vmic.com Web Address: www.vmic.com Copyright © September 1996 by VMIC Specifications subject to change without notice. VMIC • 12090 South Memorial Parkway • Huntsville, Alabama 35803-3308 1 ✄ VMIVME/SW-RFM1 ✪✄✰✮✄✯❊❘�✄✬❙◗❚❊❘ Supported Configurations RM Partitioning The following table shows the features available on each The RM device driver is highly configurable to enable its use in supported platform. a variety of situations. The available RM space is conceptually divided into three areas: a lower freely accessible partition, a TCP/IP communications area used only by the device driver, and an Trademarks upper freely accessible partition. By changing the relative sizes of The VMIC logo is a registered trademark of VMIC. MS-DOS and these areas in the driver source code, the RM device driver should Windows NT are registered trademarks of Microsoft Corporation. be able to share the Reflective Memory resource with existing RM Other registered trademarks are the property of their respective network applications. owners. Available Features RFM1 Driver Product Host OS Compatible Boards DMA TCP/IP User Support Support Interrupts VMIVME/SW-RFM1-ABC-005 Solaris 2.x* VMIVME-5550 No No Yes VMIVME-5576 No No Yes VMIVME-5588 No No Yes VMIVME/SW-RFM1-ABC-030 VxWorks VMIVME-5550 Yes No Yes VMIVME-5576 Yes Yes Yes VMIVME-5588 No Yes Yes VMIVME-5588DMA Yes Yes Yes VMIVME/SW-RFM1-ABC-205 IRIX 5.x VMIVME-5550 Yes No Yes VMIVME-5576 Yes No Yes VMIVME-5588 No No Yes VMIVME-5588DMA Yes No Yes VMIVME/SW-RFM1-ABC-210 IRIX 6.x VMIVME-5550 Yes No Yes VMIVME-5576 Yes No Yes VMIVME-5588 No No Yes VMIVME-5588DMA Yes No Yes VMIVME/SW-RFM1-ABC-701 HP-UX 10.x* VMIVME-5550 No No Yes VMIVME-5576 No No Yes VMIVME-5588 No No Yes VMIVME/SW-RFM1-ABC-711 HP-RT 3.01* VMIVME-5550 No No Yes VMIVME-5576 No No Yes VMIVME-5588 No No Yes VMIVME/SW-RFM1-ABC-805 DEC UNIX 4.x* VMIVME-5550 Yes No Yes VMIVME-5576 Yes No Yes VMIVME-5588 No No Yes VMIVME-5588DMA Yes No Yes *Unsupported. Source coded is unavailable. 2 For Ordering Information, Call: 1-800-322-3616 or 1-256-880-0444 • FAX (256) 882-0859