[openib-general] Re: [PATCH] IPoIB: Set hardware header on packet receive

[Roland Dreier]

    Hal> I was wondering about this myself as to whether this matters
    Hal> or not.  Other drivers determine this from the destination
    Hal> MAC address. Does it affect the incoming delivery if more
    Hal> than one process is receiving an IP broadcast or multicast ? 
    Hal> I didn't chase it all the way down in the Linux kernel. Do
    Hal> you know ?

There's a lot of places where the field is checked.  However all the
ones I've seen are just ignoring packets that aren't PACKET_HOST or
sometimes looking for PACKET_LOOPBACK packets.  So PACKET_BROADCAST or
PACKET_MULTICAST may be checked somewhere but I'm not aware of
anywhere that they are.

 - R.