Hi Jan,
Thank for the answer.
Am Freitag, 26. Oktober 2012 15:38 CEST, Jan Kiszka <jan.kis...@siemens.com>
schrieb:
> On 2012-10-25 10:58, Michael Morscher wrote:
> > Hey guys,
> >
> > Just ran into some strange behaviour on my test rig. (2x MPC8313E-RDB +2x
> > Intel E1000 PCI)
> >
> > 1. After starting the master server, I'm getting loads of those messages:
> > >>>TDMA: Failed to transmit sync frame!
> > instead of the normal "waiting for slaves...". I need to start the slave
> > first and let him "search for master..." and then the master to get the
> > RTnet handshake...
> >
> > 2. When I'm trying to stop the rtnet service, I'm getting an PCI / DMA
> > problem:
>
> What are the vendor:device IDs of your NICs? Do they also happen to work
> with the rt_e1000e (likely if they are newer cards)? Then that driver
> should be preferred.
lspci gives me:
00:0f.0 Ethernet controller [0200]: Intel Corporation 82541PI Gigabit Ethernet
Controller [8086:107c] (rev 05)
Subsystem: Intel Corporation PRO/1000 GT Desktop Adapter [8086:1376]
Flags: bus master, 66MHz, medium devsel, latency 128, IRQ 17
Memory at 90000000 (32-bit, non-prefetchable) [size=128K]
Memory at 90020000 (32-bit, non-prefetchable) [size=128K]
I/O ports at 1000 [size=64]
[virtual] Expansion ROM at 80000000 [disabled] [size=128K]
Capabilities: [dc] Power Management version 2
Capabilities: [e4] PCI-X non-bridge device
Kernel driver in use: rt_e1000
Kernel modules: e1000
Actually removing the PCI Adress from the REBIND_RT_NICS solved the
start/stoping issue. Thought that this would help, but maybe I didn't get the
purpose of this variable.
>
> >
> > After that, It looks like he cannot access the DMA again. Only a reboot
> > fixes that.
> >
> >
> > 3. While trying to use the rtping tool, I'm getting a lot variation in the
> > output data. Is that normal?
>
> If you have TDMA enabled, reply times are following the time slots and
> may jump as the injection point shifts/jitters.
>
> Jan
Are there any other variables or modes supported in RTnet? Actually there is a
variable but I can only find the patch that adds it :)
(RT_PROTOCOLS="udp packet") and no documentation.
Have you got any results what bandwidth you achieved? Or anyone?
Cheers
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