Jan Kiszka wrote: > Beyer Philipp wrote: > >> Jan Kiszka wrote: >> >>> Beyer Philipp wrote: >>> >>> >>>> ... >>>> kontron_xenomai:~# rtifconfig rtlo up 127.0.0.1 >>>> kontron_xenomai:~# rtroute add 10.0.0.2 00:E0:4B:0E:3D:29 dev rteth1 >>>> >>>> >>> You could try rtroute solict as well, first from master to slave, then >>> the other way around. This also indicates if there is any communication >>> at all (one direction should work as we saw). Check /proc/xenomai/irq if >>> something happens, and on which side. If you can resolve the conflict on >>> IRQ #10 (e.g. by unloading the Linux driver for the competing device), >>> you could also try rteth0. >>> >>> >> The problem is I actually can't unload this other module, because it is >> compiled into the kernel. >> And I need it statically, because I boot from it via PXE -> kernel tftp >> -> nfsrootfs. This device is the VIA RHINE I was speaking of. It is >> eth0. If I try to rtifconfig rteth0 my system freezes! Thats because I >> tried with rteth1 :D >> > > /me slowly starting to understand the scenario. Again, you can instruct > rt_tulip to skip the first NIC so that rteth1 becomes rteth0. > > >> kontron_xenomai:~# rtroute solicit 10.0.0.2 dev rteth1 >> kontron_xenomai:~# rtroute >> Host Routing Table >> Hash Destination HW Address Device >> 00 0.0.0.0 00:00:00:00:00:00 rtlo >> 01 10.0.0.1 00:00:00:00:00:00 rtlo >> 01 127.0.0.1 00:00:00:00:00:00 rtlo >> 3F 10.255.255.255 FF:FF:FF:FF:FF:FF rteth1 >> kontron_xenomai:~# cat /proc/xenomai/irq >> IRQ CPU0 >> 0: 82322 >> 11: 2 >> 34: 3 >> ------------------------------------------------------------------------- >> kontron_xenomai:~# rtroute solicit 10.0.0.1 dev rteth1 >> kontron_xenomai:~# rtroute >> Host Routing Table >> Hash Destination HW Address Device >> 00 0.0.0.0 00:00:00:00:00:00 rtlo >> 01 127.0.0.1 00:00:00:00:00:00 rtlo >> 02 10.0.0.2 00:00:00:00:00:00 rtlo >> 3F 10.255.255.255 FF:FF:FF:FF:FF:FF rteth1 >> kontron_xenomai:~# cat /proc/xenomai/irq >> IRQ CPU0 >> 0: 104582 >> 11: 3 >> 34: 4 >> > > irq count before and after the solicit would tell more. The should be > one IRQ for packet tx and one for rx. > You mean like this:
kontron_xenomai:~# cat /proc/xenomai/irq IRQ CPU0 0: 45700 11: 10 34: 11 kontron_xenomai:~# rtping -c 3 10.0.0.1 Real-time PING 10.0.0.1 56(84) bytes of data. --- 10.0.0.1 rtping statistics --- 3 packets transmitted, 0 received, 100% packet loss worst case rtt = 0.0 us kontron_xenomai:~# cat /proc/xenomai/irq IRQ CPU0 0: 48866 11: 13 34: 14 kontron_xenomai:~# With soilicit it is as you said. ^^ > Ok, then also compare the kernel output of the Linux driver in debug > mode with that of rt_tulip in debug mode. Maybe the media type isn't > negotiated correctly. I remember some issues - without further details > unfortunately. I only remember that tulip was somehow fishy in this > regard, fits to this comment [1]. > > Do you have a crosslink cable in between? There is the "options" module > parameter of rt_tulip, playing with it may be worthwhile (see [2] for > the meanings). > I tried insmod /usr/local/rtnet/modules/rt_tulip.ko debug=6 options=11,11 what is in that case the default - and thats nothing special for 100 megabit ethernet. and insmod /usr/local/rtnet/modules/rt_tulip.ko debug=6 options=14,14 what these other values exactly mean - I have not really the perfect idea ;) I also had a closer look at the linux tulip drivers with highest debug level (6) but nowhere was a clue what media is used. But I read about the default value is 0 - that would be /10baseT/ I could force the driver to the values I want. I am going to play with it a bit more. And yes I have a crosslink cable in between. > > [1]http://www.rts.uni-hannover.de/rtnet/lxr/source/drivers/tulip/tulip_core.c#L1644 > [2]http://www.rts.uni-hannover.de/rtnet/lxr/source/drivers/tulip/tulip_core.c#L58 > > ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ RTnet-users mailing list RTnet-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/rtnet-users
