When joining IPoIB multicast group, use the same rate as in the broadcast
group. Otherwise, if rdma_cm creates this group before IPoIB does, it might get
a different rate. This will cause IPoIB to fail joining to the same group later
on, because IPoIB has a strict rate selection.
Signed-off-by: Yossi Etigin <[email protected]>
--
Index: b/drivers/infiniband/core/cma.c
===================================================================
--- a/drivers/infiniband/core/cma.c 2009-03-30 19:53:19.000000000 +0300
+++ b/drivers/infiniband/core/cma.c 2009-03-30 21:38:02.000000000 +0300
@@ -2726,6 +2726,10 @@ static int cma_join_ib_multicast(struct
IB_SA_MCMEMBER_REC_FLOW_LABEL |
IB_SA_MCMEMBER_REC_TRAFFIC_CLASS;
+ if (id_priv->id.ps == RDMA_PS_IPOIB)
+ comp_mask |= IB_SA_MCMEMBER_REC_RATE |
+ IB_SA_MCMEMBER_REC_RATE_SELECTOR;
+
mc->multicast.ib = ib_sa_join_multicast(&sa_client, id_priv->id.device,
id_priv->id.port_num, &rec,
comp_mask, GFP_KERNEL,
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