Andrew Friedley wrote:
Dotan Barak wrote:
In the following URL you can find a very simple example on how to use
multicast:
https://svn.openfabrics.org/svn/openib/trunk/contrib/mellanox/ibtp/gen2/userspace/useraccess/multicast_test/multicast_test.c
I seem to be missing v1.h on my OFED v1.2 nightly install, where can I
find it?
VL can be found in:
https://svn.openfabrics.org/svn/openib/trunk/contrib/mellanox/ibtp/common/tools/vl/
this test doesn't send an SA query (to get the multicast props) or an
SA multicast join (to make the SM configure the subnet to make the
port that this QP is attached to) to get the multicast messages.
This example will work on a back-to-back topology.
An alternative that I've had pretty good success with is to use the
RDMA CM. It uses an IP(v6) abstraction, does the SA queries/joins for
you, and also supports selection of an unused multicast address if you
join the '0' address (and port? not sure if its required, I always
zero it). Check out the 'mckey.c' example included with the RDMA CM
source, it will likely answer your questions.
This test was written in order to check the verbs layer without any
dependency on any ULP.
thanks
Dotan
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