Bruno Carlus wrote:
Hello !I've got a RTnet network (two xenomai machines actually...) running and would like to run a PTP (time synchronizing) software through it.[Source available at http://ptpd.sourceforge.net/]The software compiles ok with xenomai/posix wrapping options but cannot run and exits within the following code:if(ioctl(netPath->eventSock, SIOCGIFADDR, &device[i]) < 0) { PERROR("failed to get ip address"); return 0; } (don't know if the information will be enough ...)
SIOCGIFADDR is not implemented in the core. You could either switch ptpd to use SIOCGIFCONF or add the few required lines to RTnet. This would be the place for them:
http://www.rts.uni-hannover.de/rtnet/lxr/source/stack/socket.c#225
The network itself is running ok with rtping or other pieces of code.So I wonder if my compilation method is really the good one or if there are other linking to be done with the ioctl function ?Other question: what is the status of the RTnet multicast support core and nic drivers?
Basically, we are lacking an efficient but still RT-capable rtskb_clone for true multicast support. We do have some rtskb_clone already for ETH_P_ALL support, but it simply copies the payload which does no scale well and does not allow to isolate the users from each other.
For sure, one could bake a single user (==single receiver) approach for now. There used to be some patches for this (with 8139 driver support), just search the archive. They were never merged as the needed some refactorings first.
Jan
signature.asc
Description: OpenPGP digital signature
------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
_______________________________________________ RTnet-users mailing list RTnet-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/rtnet-users
