Steven A. Falco wrote: > I am building kernel 2.6.25.4 from DENX with Xenomai 2.4.4 for PPC440EPx > (sequoia development board). > > The kernel tries to use DHCP to obtain network settings. With IPIPE > disabled, this works perfectly. However, when I enable IPIPE, the board > sends packets ok, but does not receive packets - I can see the DHCP with > a sniffer, but the development board does not receive them. >
External interrupts are probably locked out by the pipeline engine; I've fixed a similar issue in recent patches for other PICs. Which I-pipe patch release are you using? > Also, in order to disable IPIPE, I had to patch > kernel/time/tick-common.c around line 168. It is missing an ifdef: > > diff --git a/kernel/time/tick-common.c b/kernel/time/tick-common.c > index 58bfacf..3a735b8 100644 > --- a/kernel/time/tick-common.c > +++ b/kernel/time/tick-common.c > @@ -163,9 +163,11 @@ static void tick_setup_device(struct tick_device *td, > > td->evtdev = newdev; > > +#ifdef CONFIG_IPIPE > /* I-pipe: derive global tick IRQ from CPU 0 */ > if (cpu == 0) > ipipe_update_tick_evtdev(newdev); > +#endif > > /* > * When the device is not per cpu, pin the interrupt to the > > Signed-off-by: Steve Falco <[EMAIL PROTECTED]> > > If anyone has suggestions as to why IPIPE is blocking received ethernet > packets, I'd appreciate it. > > Steve > > > _______________________________________________ > Xenomai-core mailing list > Xenomai-core@gna.org > https://mail.gna.org/listinfo/xenomai-core > -- Philippe. _______________________________________________ Xenomai-core mailing list Xenomai-core@gna.org https://mail.gna.org/listinfo/xenomai-core
