Thank you. That makes sense.
I will prepare a new version.


Von: Sebastian Huber [mailto:sebastian.hu...@embedded-brains.de]
Gesendet: Freitag, 20. März 2020 12:54
An: Sommer, Jan; devel@rtems.org
Betreff: Re: AW: [PATCH v2 3/3] i386: Port to RTEMS


On 10/03/2020 09:12, jan.som...@dlr.de<mailto:jan.som...@dlr.de> wrote:

[...]



diff --git a/freebsd/sys/net/iflib.c b/freebsd/sys/net/iflib.c

index 89bc5e79..09282ac7 100644

--- a/freebsd/sys/net/iflib.c

+++ b/freebsd/sys/net/iflib.c

@@ -1031,8 +1031,13 @@ iflib_netmap_txsync(struct netmap_kring *kring, int

flags)

  }

  if (!(ctx->ifc_flags & IFC_NETMAP_TX_IRQ))

          if (kring->nr_hwtail != nm_prev(kring->nr_hwcur, lim)) {

+#ifndef __rtems__

                  callout_reset_on(&txq->ift_timer, hz < 2000 ? 1 : hz /

1000,

                      iflib_timer, txq, txq->ift_timer.c_cpu);

+#else /* __rtems__ */

+                 callout_reset_curcpu(&txq->ift_timer, hz < 2000 ? 1 : hz

/ 1000,

+                     iflib_timer, txq);

I am not completely sure about all the side effects of replacing 
callout_reset_on with callout_reset_curcpu, but the struct callout has no 
"c_cpu" member in RTEMS.

If someone has a better idea, please tell me.



I would change the callout_reset_on() macro and don't change the caller.

#ifndef __rtems__
#define    callout_reset_on(c, to_ticks, fn, arg, cpu)            \
    callout_reset_sbt_on((c), tick_sbt * (to_ticks), 0, (fn), (arg),    \
        (cpu), C_HARDCLOCK)
#else /* __rtems__ */
#define    callout_reset_on(c, to_ticks, fn, arg, cpu)            \
    callout_reset_sbt_on((c), tick_sbt * (to_ticks), 0, (fn), (arg),    \
        -1, C_HARDCLOCK)
#endif /* __rtems__ */
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