tree 71cd499d8b4e0a2168d7e8b8caea90c0d94aa3e7
parent 618d14b01a45cb0fbfe5ad1177699e4a49dec237
author Jack Morgenstein <jackm@dev.mellanox.co.il> 1478770257 +0200
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1485415475 +0100

IB/mlx4: Handle well-known-gid in mad_demux processing

commit befcabcd530e4ffb6f016638f693b7d94986d2ba upstream.

If OpenSM runs over a ConnectX-3, and there are ConnectX-4 or Connect-IB
VFs active on the network, the OpenSM will receive QP1 packets containing
a GRH where the destination GID is the "Well-Known GID" -- which is not a
GID in the HCA Port's GID Table.

This GID must be tested-for separately -- and packets which contain
this destination GID should be routed to slave 0 (the PF).

Fixes: 37bfc7c1e83f ('IB/mlx4: SR-IOV multiplex and demultiplex MADs')
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>