On Tue, Feb 13, 2018 at 10:44 PM, Jan Kiszka <jan.kis...@siemens.com> wrote: > On 2018-02-13 17:25, Pintu Kumar wrote: >> On Tue, Feb 13, 2018 at 8:09 PM, Greg Gallagher <g...@embeddedgreg.com> >> wrote: >>> Have you confirmed that the rtnet drivers for your system are loaded? >>> Are they built into the kernel or built as modules? >>> >> >> Yes, I have enabled RTDM and RTNET in kernel confirm as loadable >> module (M), and rent drivers are loaded successfully. >> As I said before, all the rtnet modules are visible from lsmod. >> >> Also, as I said rtnet loopback (rtlo) is working fine. >> But rteth0 does not come up using rent script. >> >> I even tried forcefully reserving the interface name to (eth0, eth1) >> by passing kernel command line argument. >> Now the interface name is shown as : eth0, eth1 (instead of enp0*) >> >> But still I am not able to get rteth0, rteth1 interface. >> >> Is there any thing I am missing? > > I do not know the details of virtualbox and which kind of ethernet > hardware it exposes to the guest. You can check with "lspci -knn" which > kernel driver is registered for which PCI device, of which one will be > your (virtual) NIC. If the network controller is (likely) still owned by > a linux driver, check if there is a corresponding rtnet driver and > specify that in /etc/rtnet.conf, along with the device that shall be > rebound. > > When using a more powerful virtualization solution like QEMU/KVM, you > will get e1000/e1000e compatible models. Those at least used to work > fine with RTnet.
Its a oracle virtual box 5.x with Ubuntu16 32-bit running on it as guest. The host machine is HP Pavilion Laptop with Windows 7. Yes, I also have e1000 module shown under the module list. This is my module list with rtnet enabled. # lsmod | grep rt rtmac 7879 1 tdma rtcfg 32455 0 rt_loopback 1143 1 rtpacket 5768 0 rtudp 9262 0 rt_eepro100 14398 0 rtipv4 21568 2 rtudp,rtcfg rtnet 46929 8 rtipv4,rt_loopback,rtmac,rt_eepro100,rtpacket,rtudp,rtcfg,tdma My question is what is the normal process for bringing up rtnet interface (rteth0). If you list down the steps, I will compare with mine and see if anything is missing. Normally for me, I follow this: a) Install xenomai 3.0.6 kernel (using prepare_kernel) on linux mainline kernel. b) In menuconfig, enable RTDM/RTNET driver, RTCAP and others using (M) option. c) Enable RTDM serial driver as well (in built) - for later use. d) Boot the Xenomai kernel. e) Verify the /dev/rtnet and /dev/rtdm/ is available. f) Check that ethernet is available in ifconfig. It could be: eth0, eth1 OR: enp0s8 etc. g) Make changes in rtnet.cfg config to enable RTCAP=yes and loopback=yes h) Start the rtnet script: /usr/xenomai/sbin/rtnet start i) Do "lsmod" and verify that all rt drivers are loaded. j) Check ifconfig : here we see only rtlo added (along with previous). I am not making any changes in tdma.conf Do we need to make any other changes in rtnet.conf file ? Or do we need to use rtcfg to setup something before starting rtnet ? Because if we start rtnet , I get this error: rteth0: ERROR while getting interface flags: No such device rteth0-mac: ERROR while getting interface flags: No such device Regards, Pintu > > Jan > > -- > Siemens AG, Corporate Technology, CT RDA IOT SES-DE > Corporate Competence Center Embedded Linux _______________________________________________ Xenomai mailing list Xenomai@xenomai.org https://xenomai.org/mailman/listinfo/xenomai