Hi,
I've ported BF537-stamp on-chip mac driver to RTNet. It seems, works
with Xenomai 3.3.2, RTNet 0.9.9 and uClinux 2007R1. You can find
the ported code at http://garzoand.web.elte.hu/rtnetdev-bf537.tgz .
But I have an interesting problem, while I'm using RTNet on blackfin: too
many UDP packages disappear. I trying to send 10 000 UDP packages to
blackfin with 20ms pause, but not all of them arrive. About between 150 and
1000 packages are always lost. I made some debug,
and turned out, the mac driver got the packages, but it's dropped by the
ipv4 layer,
at line 83 of ip_input.c:
err = rtskb_acquire(skb, &sock->skb_pool);
/* Socket is now implicitely locked by the rtskb */
rt_socket_dereference(sock);
if (err) {
kfree_rtskb(skb);
return;
}
So, __rtskb_deque(skb_pool) (called by rtskb_acquire) returns with
error, in some case (but - i think - too many case).
Has anyone any idea, why does it happen?
Thanks,
Andras
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