[Xenomai] [rtnet] - help required with rtnet interface bring up

Jan Kiszka jan.kiszka at web.de
Thu Feb 15 08:06:20 CET 2018


On 2018-02-14 14:52, Pintu Kumar wrote:
> On Wed, Feb 14, 2018 at 12:15 PM, Jan Kiszka <jan.kiszka at web.de> wrote:
>> On 2018-02-14 07:42, Pintu Kumar wrote:
>>> On Tue, Feb 13, 2018 at 11:56 PM, Greg Gallagher <greg at embeddedgreg.com> wrote:
>>>> Did you get the output of lspci -knn as Jan suggested?
>>>>
>>>
>>> Here, is the output of lspci:
>>>
>>> $ lspci -knn
>>> 00:00.0 Host bridge [0600]: Intel Corporation 440FX - 82441FX PMC
>>> [Natoma] [8086:1237] (rev 02)
>>> 00:01.0 ISA bridge [0601]: Intel Corporation 82371SB PIIX3 ISA
>>> [Natoma/Triton II] [8086:7000]
>>> 00:01.1 IDE interface [0101]: Intel Corporation 82371AB/EB/MB PIIX4
>>> IDE [8086:7111] (rev 01)
>>>         Kernel driver in use: ata_piix
>>>         Kernel modules: pata_acpi
>>> 00:02.0 VGA compatible controller [0300]: InnoTek Systemberatung GmbH
>>> VirtualBox Graphics Adapter [80ee:beef]
>>>         Kernel driver in use: vboxvideo
>>>         Kernel modules: vboxvideo
>>> 00:03.0 Ethernet controller [0200]: Intel Corporation 82540EM Gigabit
>>> Ethernet Controller [8086:100e] (rev 02)
>>>         Subsystem: Intel Corporation PRO/1000 MT Desktop Adapter [8086:001e]
>>>         Kernel driver in use: e1000
>>>         Kernel modules: e1000, rt_e1000
>>> 00:04.0 System peripheral [0880]: InnoTek Systemberatung GmbH
>>> VirtualBox Guest Service [80ee:cafe]
>>>         Kernel driver in use: vboxguest
>>>         Kernel modules: vboxguest
>>> 00:05.0 Multimedia audio controller [0401]: Intel Corporation 82801AA
>>> AC'97 Audio Controller [8086:2415] (rev 01)
>>>         Subsystem: Dell 82801AA AC'97 Audio Controller [1028:0177]
>>>         Kernel driver in use: snd_intel8x0
>>>         Kernel modules: snd_intel8x0
>>> 00:06.0 USB controller [0c03]: Apple Inc. KeyLargo/Intrepid USB [106b:003f]
>>>         Kernel driver in use: ohci-pci
>>> 00:07.0 Bridge [0680]: Intel Corporation 82371AB/EB/MB PIIX4 ACPI
>>> [8086:7113] (rev 08)
>>>         Kernel driver in use: piix4_smbus
>>>         Kernel modules: i2c_piix4
>>> 00:08.0 Ethernet controller [0200]: Intel Corporation 82540EM Gigabit
>>> Ethernet Controller [8086:100e] (rev 02)
>>>         Subsystem: Intel Corporation PRO/1000 MT Desktop Adapter [8086:001e]
>>>         Kernel driver in use: e1000
>>>         Kernel modules: e1000, rt_e1000
>>
>> Perfect. So, rt_e1000 is your driver. Now open /etc/rtnet.conf, read the
>> comments in there, and adjust it to your system.
>>
> 
> Ok thank you so much. I got a clue and something is working now. But
> still not perfect.
> 
> I followed the following steps:
> 1) sudo ifconfig [eth0/eth1] down
> 2) Remove the existing ethernet driver (e1000) => modprobe -r e1000
> 3) Changed the rtnet.conf:
>     RT_DRIVER="rt_e1000"
> 4) Blank ip address as per comments there => IPADDR=""
> 5) sudo /usr/xenomai/sbin/rtnet start
> 6) Got this:
>     Waiting for all slaves...
> 7) Pressed ^C to stop
> 
> 8) Now when I check : ifconfig, I got this:
> 
> $ ifconfig
> 
> rteth0    Link encap:Ethernet  HWaddr 08:00:27:52:ba:f1
>           inet6 addr: fe80::a00:27ff:fe52:baf1/64 Scope:Link
>           UP BROADCAST RUNNING  MTU:1500  Metric:1
>           RX packets:1465 errors:0 dropped:1465 overruns:0 frame:0
>           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:41332 (41.3 KB)  TX bytes:0 (0.0 B)
> 
> rteth0-mac Link encap:Ethernet  HWaddr 08:00:27:52:ba:f1
>           inet6 addr: fe80::a00:27ff:fe52:baf1/64 Scope:Link
>           UP BROADCAST RUNNING  MTU:1500  Metric:1
>           RX packets:1465 errors:0 dropped:7 overruns:0 frame:0
>           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:41332 (41.3 KB)  TX bytes:0 (0.0 B)
> 
> rtlo      Link encap:Ethernet  HWaddr 00:00:00:00:00:00
>           inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
>           UP BROADCAST RUNNING  MTU:1500  Metric:1
>           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
> 
> vnic0     Link encap:Ethernet  HWaddr 08:00:27:52:ba:f1
>           inet6 addr: fe80::a00:27ff:fe52:baf1/64 Scope:Link
>           UP BROADCAST RUNNING  MTU:1496  Metric:1
>           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:7 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:0 (0.0 B)  TX bytes:578 (578.0 B)
> 
> 
> $ sudo /usr/xenomai/sbin/rtifconfig
> rteth0    Medium: Ethernet  Hardware address: 08:00:27:52:BA:F1
>           UP BROADCAST RUNNING  MTU: 1500
> 
> rtlo      Medium: Local Loopback
>           IP address: 127.0.0.1
>           UP LOOPBACK RUNNING  MTU: 1500
> 
> 
> ----------------------------------------------------------------------------
> So, I still have the following queries:
> 1) Why only rteth0 is up, and not eth1 (earlier I have both eth0 and eth1) ?
> 

The startup script only supports one interface. Think of it as a
template for more complex custom setups. The question you need to answer
for yourself is then also which of the RTnet features (RTcfg, RTmac,
TDMA,...) you want and how you'd like to set up the overall network.

> 2) Why IP address is not shown under rteth0 ?
>      Earlier, the network was associated with :
>            eth0 => inet addr:10.0.2.15
>            eth1 => inet addr:192.168.56.101

Because you didn't set one, as you stated above, and you didn't set up a
RTcfg master that could hand one out.

> 
> ---------------------------------------------------------------------------
> 
> These are the kernel logs during rtnet installation:
> 
>                *** RTnet for Xenomai v3.0.6 ***
> 
> [84221.150295] RTnet: initialising real-time networking
> [84221.202520] Intel(R) PRO/1000 Network Driver - version 7.1.9
> [84221.202523] Copyright (c) 1999-2006 Intel Corporation.
> [84221.526522] e1000: 0000:00:03.0: e1000_probe: (PCI:33MHz:32-bit)
> [84221.526525] 08:
> [84221.526526] 00:
> [84221.526528] 27:
> [84221.526529] 52:
> [84221.526531] ba:
> [84221.526533] f1
> [84221.575234] RTnet: registered rteth0
> [84221.575237] e1000: rteth0: e1000_probe: Intel(R) PRO/1000 Network Connection
> [84221.900806] e1000: 0000:00:08.0: e1000_probe: (PCI:33MHz:32-bit)
> [84221.900810] 08:
> [84221.900812] 00:
> [84221.900814] 27:
> [84221.900816] 19:
> [84221.900818] 5b:
> [84221.900819] dc
> [84221.946479] RTnet: registered rteth1
> [84221.946482] e1000: rteth1: e1000_probe: Intel(R) PRO/1000 Network Connection
> [84221.976448] initializing loopback...
> [84221.976458] RTnet: registered rtlo
> [84221.982513] RTcap: real-time capturing interface
> [84222.039892] ModemManager[10059]: segfault at 0 ip 0806f964 sp
> bfb7bd80 error 4 in ModemManager[8048000+121000]
> [84222.089678] RTcfg: init real-time configuration distribution protocol
> [84222.149775] RTmac: init realtime media access control
> [84222.177704] RTmac/TDMA: init time division multiple access control mechanism
> [84222.179821] RTcfg: rtcfg_do_main_event() rtdev=1,
> event=RTCFG_CMD_SERVER, state=RTCFG_MAIN_OFF
> [84222.179824] RTcfg: next main state=RTCFG_MAIN_SERVER_RUNNING
> [84224.194058] e1000: rteth0: e1000_watchdog: NIC Link is Up 1000 Mbps
> Full Duplex
> [84225.422825] ModemManager[10435]: segfault at 0 ip 0806f964 sp
> bfb85f40 error 4 in ModemManager[8048000+121000]
> [84225.434788] RTcfg: rtcfg_do_main_event() rtdev=1,
> event=RTCFG_CMD_ADD, state=RTCFG_MAIN_SERVER_RUNNING
> [84225.435376] RTcfg: rtcfg_do_main_event() rtdev=1,
> event=RTCFG_CMD_ADD, state=RTCFG_MAIN_SERVER_RUNNING
> [84225.435939] RTcfg: rtcfg_do_main_event() rtdev=1,
> event=RTCFG_CMD_ADD, state=RTCFG_MAIN_SERVER_RUNNING
> [84225.438018] RTcfg: rtcfg_do_main_event() rtdev=1,
> event=RTCFG_CMD_WAIT, state=RTCFG_MAIN_SERVER_RUNNING
> [84226.179858] RTcfg: error -11 while sending stage 1 frame
> [84226.179870] RTcfg: error -11 while sending stage 1 frame
> [84226.179872] RTcfg: error -11 while sending stage 1 frame
> [84227.179861] RTcfg: error -11 while sending stage 1 frame
> [84227.179877] RTcfg: error -11 while sending stage 1 frame
> [84227.179879] RTcfg: error -11 while sending stage 1 frame
> [84228.180889] RTcfg: error -11 while sending stage 1 frame
> .......
> .......
> 
> These error is flowing continuously in the kernel logs. What does this
> indicates ?
> 

The error may indicate that packet transmission via rteth0 is not
working properly. Maybe the rtnet driver is not fully supporting that
NIC, or interrupts do not arrive for the NIC (check /proc/xenomai/irqs),
or you simply lack a (virtual) link on that interface.

Jan

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 181 bytes
Desc: OpenPGP digital signature
URL: <http://xenomai.org/pipermail/xenomai/attachments/20180215/8b337567/attachment.sig>


More information about the Xenomai mailing list