paths_per_dest = 8 (I have set OpenSM LMC=3)
lookup_method = 0 (Round robin way to return paths)
in an intent to retrieve multiple paths. On a single run of my module,
it always returned me the same path on multiple calls to
ib_sa_path_rec_get. When my module was unloaded and loaded again, it
returned me different path than first run. But, in this second run on
successive calls to ib_sa_path_rec_get, it again kept returning me the
same path as obtained on the first run. Thus, it looks like successive
calls to ib_sa_path_rec_get is not returning me different path on each
call.
If I have to retrieve all 8 paths in a single call, is there any way
that I can accomplish the same?
As Hal pointed out, this is using the SA caching. If you want to obtain
all paths with a single call, you will need to send your own GetTable
MAD to the SA using the ib_mad or libibumad interface.
From your description, either the cache that you're using isn't being
used or has a bug. Does this version have a 'refresh' parameter? If
so, can you try writing a '1' to that and see if the behavior changes?
You could also try changing the lookup_method to random (1) to see if
you see other path records.
- Sean
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