Success I had to run on target xeno-config and paste the output to my makefile, because I was doing cross-compile for bbb on a x86_64 host. So, the tests are: frag-ip between bbb and qemu-x86-64-rt_8139too which use alchemy: success rtt-sender/rtt-responder which use posix skin: success.
However the ping fails even if vnic0 is fully configured just as rteth0 for which rtping succeds. Thank you all On 8/22/19, Jan Kiszka <jan.kis...@siemens.com> wrote: > On 22.08.19 16:27, Laurentiu-Cristian Duca via Xenomai wrote: >> Hi, >> >> I have used rtifconfig, rtroute and rtping and I mentioned that worked, >> I have written that rtt-sender and rtt-responder which use posix skin >> worked only on vnic0 and not on rteth0. >> >> I have ported frag-ip.c (from rtnet 0.9.13 to xenomai 3) >> which uses alchemy instead of posix and it works on rteth0 link >> between two qemu-x86_64-rt_8139too virtual machines, >> but do not work on bbb (I think the drivers I use have problems on bbb). > > I still suspect your ported rtt-sender/responder have some binding issue to > > RTnet so that UDP sockets fall back to plan Linux. You can check that by > running > "netstat -lun" while the two are active. If someone listens on a suspicious > > port, you have the prove. > > Looking at your makefile... > >> >> Thx >> >> On 8/22/19, Per Oberg <p...@wolfram.com> wrote: >>> >>> >>> ----- Den 22 aug 2019, på kl 13:21, xenomai xenomai@xenomai.org skrev: >>> >>>> Hi, >>> >>>> I have made a test between two qemu-x86_64-rt_8139too with different >>>> mac and IP addresses, >>>> one is master one is slave. In each of them I do: >>>> /usr/xenomai/sbin/rtnet start >>>> Then the applications rtt-sender and rtt-responder (taken from rtnet >>>> 0.9.13 release) work, >>>> but if I turn off vnic0, then rtt-sender reports error: "sendto >>>> failed: Network is unreachable", >>>> even if rteth0 is up and fully configured. >>>> Do you have any simple apps that work on rtnet? >>> >>> You have : >>> rtping >>> rtifconfig >>> rtroute >>> >>> Perhaps these can be of assistance? >>> >>>> Thank you, >>>> Kind regards >>> >>>> On 8/22/19, Laurentiu-Cristian Duca <laurentiu.d...@gmail.com> wrote: >>>>> The rt drivers for bbb are taken from: >>>>> https://github.com/G-Ray/xenomai-boneblack-rtnet-drivers >>>>> and I am not 100% sure that they are working correctly. >>> >>>>> On 8/22/19, Laurentiu-Cristian Duca <laurentiu.d...@gmail.com> wrote: >>>>>> Hello Jan and friends >>> >>>>>> Thank you for your fast answer. Please find below the details. >>> >>>>>> On 8/21/19, Jan Kiszka <jan.kis...@siemens.com> wrote: >>>>>>> On 21.08.19 16:20, Laurentiu-Cristian Duca via Xenomai wrote: >>>>>>>> Hello rtnet community, >>> >>>>>>>> I successfully tested the examples rtt-sender and rtt-responder >>>>>>>> within a rtnet made from one beaglebone black and one >>>>>>>> qemu-x86_64-8139too, >>>>>>>> with tdma and also with nomac. >>> >>>>>>> Are we talking about some legacy Xenomai or even RTnet version? Or >>>>>>> where >>>>>>> did >>>>>>> you >>>>>>> get the examples from? They are not part of RTnet in Xenomai 3. >>> >>>>>> I got the examples from rtnet-0.9.13. I know they are quite old, but >>>>>> I needed a start point. >>>>>> Are these obsolete? Do you have any examples for Xenomai 3? >>>>>> rtnet-0.9.13/examples/xenomai/posix/rtt-sender.c >>>>>> rtnet-0.9.13/examples/xenomai/posix/rtt-responder.c >>> >>> >>>>>>>> I have noted that the presence of vnic0 as an up and fully >>>>>>>> configured interface is mandatory, >>>>>>>> even if rteth0 is up and fully configured. >>>>>>>> Otherwise the rtt-sender announces "sendto failed: Network is >>>>>>>> unreachable". >>>>>>>> Could anybody tell me why is this happening? >>> >>>>>>>> I have also noted that if I disable vnic0 (ifconfig vnic0 down), >>>>>>>> rtping works if rteth0 is up and fully configured. >>>>>>>> Why does not work rtt-sender in this case? >>>>>>>> Could it be a problem with rtnet drivers? >>> >>>>>>> I bet your examples are falling back to normal network here, and >>>>>>> that >>>>>>> is >>>>>>> provided between your test nodes via the vnics. This leads to my >>>>>>> first >>>>>>> question: >>>>>>> Where did you pick the examples up, how did you build them etc.? >>>>>>> Also, >>>>>>> did >>>>>>> you >>>>>>> make sure that rtudp was loaded? >>> >>>>>> I am 100% sure that rtudp was loaded. The modules were loaded by a >>>>>> script: >>>>>> modprobe rt_smsc && modprobe rt_davinci_mdio && modprobe rt_ticpsw >>>>>> modprobe rtipv4 && modprobe rtpacket && modprobe rtudp >>>>>> modprobe rtmac >>>>>> modprobe nomac >>>>>> #modprobe tdma >>> >>>>>> I used robertcnelson Xenomai 3.0.9 patch for beaglebone black linux >>>>>> 4.14.108. It's on github. >>>>>> I have also copied the rtnet header files to xenomai-userspace >>>>>> include. The files compile without warnings. >>>>>> The makefile is: >>>>>> # Tested with linaro toolchain >>>>>> (gcc-linaro-7.4.1-2019.02-x86_64_arm-linux-gnueabihf) >>>>>> CC = arm-linux-gnueabihf-gcc >>>>>> XENO_INSTALL = >>>>>> /home/laur/lucru/raspberry-pi/robertcnelson/ti-linux-kernel-dev/ignore/xenomai-userspace >>>>>> RTNET_INSTALL = >>>>>> /home/laur/lucru/raspberry-pi/robertcnelson/rtnet-hiddeate2m >>> >>>>>> #XENO_CONFIG := >>>>>> /home/laur/lucru/raspberry-pi/robertcnelson/ti-linux-kernel-dev/ignore/xenomai-userspace/usr/xenomai/bin/xeno-config >>>>>> #/usr/xenomai/bin/xeno-config >>>>>> #CFLAGS := $(shell $(XENO_CONFIG) --posix --alchemy --cflags) >>>>>> #LDFLAGS := $(shell $(XENO_CONFIG) --posix --alchemy --ldflags) > > The interesting parts are commented out. For POSIX, you simply want > > xeno-config --skin posix --cflags / --ldflags > > Nothing self-written. > > Jan > >>> >>>>>> LIBCFLAGS = -Wall -I$(XENO_INSTALL)/usr/xenomai/include/cobalt >>>>>> LIBCFLAGS += -I$(XENO_INSTALL)/usr/xenomai/include >>> >>>>>> CFLAGS = -Wall -I$(XENO_INSTALL)/usr/xenomai/include/cobalt >>>>>> CFLAGS += -I$(XENO_INSTALL)/usr/xenomai/include/alchemy >>>>>> -I$(XENO_INSTALL)/usr/xenomai/include >>>>>> CFLAGS += -march=armv7-a -mfpu=vfpv4 -D_GNU_SOURCE -D_REENTRANT >>>>>> -D__COBALT__ -D__COBALT_WRAP_ >>>>>> CFLAGS += -I$(RTNET_INSTALL)/stack/include >>> >>>>>> LFLAGS = -lalchemy -lcopperplate >>>>>> $(XENO_INSTALL)/usr/xenomai/lib/xenomai/bootstrap.o >>>>>> LFLAGS += -Wl,--wrap=main -Wl,--wrap=malloc -Wl,--wrap=free >>>>>> #-Wl,--dynamic-list=$(XENO_INSTALL)/usr/xenomai/lib/dynlist.ld >>>>>> LFLAGS += -L$(XENO_INSTALL)/usr/xenomai/lib -lcobalt -lpthread -lrt >>>>>> LFLAGS += -march=armv7-a -mfpu=vfpv4 -Llib >>> >>>>>> all: rtt-sender rtt-responder >>>>>> rtt-sender: rtt-sender.o >>>>>> $(CC) -o rtt-sender rtt-sender.o $(LFLAGS) >>>>>> rtt-sender.o: rtt-sender.c >>>>>> $(CC) -c -o rtt-sender.o rtt-sender.c $(CFLAGS) $(LIBCFLAGS) >>>>>> (same for rtt-responder) >>> >>> >>>>>> Kind regards, >>>>>> L-C. >>> >>> >>> Per Öberg >>> >> > > -- > Siemens AG, Corporate Technology, CT RDA IOT SES-DE > Corporate Competence Center Embedded Linux >
