On 03.08.21 08:46, Chen, Hongzhan wrote: > > >> -----Original Message----- >> From: Jan Kiszka <jan.kis...@siemens.com> >> Sent: Tuesday, August 3, 2021 12:59 PM >> To: Chen, Hongzhan <hongzhan.c...@intel.com>; xenomai@xenomai.org >> Subject: Re: about RTnet* smokey test skipped issue on Qemu >> >> On 03.08.21 06:31, Chen, Hongzhan wrote: >>> Firstly, I found that all smokey tests including RTnet* pass on bare >>> metal x86 platform >>> but three RTnet* related test items are skipped on Qemu. After further >>> debug, actually there is >>> no supported rtnet device found on Qemu with current network setting >>> when xenomai image >>> is running over even we already enable all supported rtnet devices on >>> xenomai so that >>> the test is skipped on qemu. >>> >>> After I replace virtio-net-pci with e1000 device like [1] patch , >>> rt_e1000 and rtnet modules >>> would be automatically loaded by udevd so that rtnet* test item can go >>> on without test skipped issue. >> >> By default, we are only doing loopback tests in smokey, nothing that >> requires a real NIC driver to be loaded. These are the modules loaded >> during a test with udp: >> >> Module Size Used by >> rtudp 24576 0 >> rtipv4 49152 1 rtudp >> rt_loopback 16384 1 >> rtnet 81920 3 rtipv4,rtudp,rt_loopback >> >> You can set the rtnet_driver and rtnet_interface parameters to switch to >> real NICs, but that is not happening during a default xeno-test run. > > The problem is that rtnet module is not loaded individually by current system > but because > RT NIC device driver module depend on it and then rtnet module will be loaded > when specific > RT NIC device driver module is modprobed after triggered by udev service. > That means > We have to add and modify something to explicitly load rtnet module by > default when system bootup > if we do not want to depends on real NIC in our case. For example we may add > corresponding *.conf > like [3] to make rtnet load automatically when system bootup in our case? >
RTnet and udp/rtpacket/loopback etc. modules are loaded by the test cases. See testsuite/smokey/net_common/setup.c. Jan -- Siemens AG, T RDA IOT Corporate Competence Center Embedded Linux
