IPoIB: Only set Q_Key once: after joining broadcast group

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The current code will set the Q_Key for any join of a non-sendonly
multicast group.  The operation involves a modify QP operation, which
is fairly heavyweight, and is only really required after the join of
the broadcast group.  Fix this by adding a parameter to ipoib_mcast_attach()
to control when the Q_Key is set.

Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

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Eli Cohen 2008-07-14 23:48:50 -07:00 • committed by Roland Dreier

parent 5892eff91a

commit d0de13622d

3 changed files with 19 additions and 15 deletions

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2

drivers/infiniband/ulp/ipoib/ipoib.h

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4

drivers/infiniband/ulp/ipoib/ipoib_multicast.c

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28

drivers/infiniband/ulp/ipoib/ipoib_verbs.c

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