Hi, this is just a short message for people running Linux on an IXP board that connects to the host over PCI. As you probably know, most support applications are currently restricted to linux 2.4 kernels. For one of our projects I'm in the process of writing an alternate PciDg driver that will also work with newer (2.6) kernels. At the moment we are able to (1) map both ENP and EB memory over PCI to kernel- and userspace on the host. (2) boot the ENP boards over PCI using Radisys' or Intel's bvloadapp utility while relying on our own GPLed mmapping module instead of PciDg. Note that pseudo-ethernet is not working yet. However, if you simply want to get the board up and running that's not an issue. Please let me know if you're interested in an updated pseudo-ethernet driver, I may consider investing time in it then. If you want to try out the module, do the following: get the latest ffpf distribution from anonymous CVS via ffpf.sourceforge.net (I'll update the regular distribution download shortly): cvs -d:pserver:anonymous@cvs.sourceforge.net:/cvsroot/ffpf login cvs -z3 -d:pserver:anonymous@cvs.sourceforge.net:/cvsroot/ffpf co ffpf/src/v1.2 and then build the kernelspace modules in [dir]/kernelspace, using 1) for 2.5.70+ and 2.6 (kbuild) infrastructure) ln -s Makefile.kernel.kbuild Makefile make -C [directory of your linux src, e.g. /usr/src/linux] SUBDIRS=${PWD} modules 2) for 2.4 and lower make -f Makefile.kernel.nokbuild this should give you a module called genpci.ko. inserting this module with the proper parameters will ioremap all memory on an arbitrary PCI device to the host's kernel and export it to userspace via a file in /dev through both read/write/llseek and mmap mechanisms. If the module is inserted without any options it will try to create the file /dev/genpci with all memory on an ENP board mapped. Since the SDRAM is in the 4th onboard memory region you'll have to add the length of the previous three memory reigons to the offsets used in bvloadapp.c to get bvloadapp running: #define LINUX_LOAD_ADDRESS 0x04008000 + 256 + 4096 + (1024*1024) #define RAMDISK_LOAD_ADDRESS 0x04800000 + 256 + 4096 + (1024*1024) also, bvloadapp asks for /dev/bv, so you should insmod genpci.ko using the following command: insmod genpci.ko name=/dev/bv or change the filename in bvloadapp.c. To get an EB booted, add the option device=0x1200 to the insmod parameter list and move the offsets around a bit. Unfortunately, my EB board kept resetting itself when put in a PCI slot, so I couldn't get it to work (I posted a question about this before). I hope that this can be of use to some of you. regards, Willem -- Willem de Bruijn wdebruij_at_dds.nl http://www.wdebruij.dds.nl/ current project : Fairly Fast Packet Filter (FFPF) http://ffpf.sourceforge.net/ -- Dit bericht is gescand op virussen en andere gevaarlijke inhoud door ULCN MailScanner en het bericht lijkt schoon te zijn. This message has been scanned for viruses and dangerous content by ULCN MailScanner, and is believed to be clean.