# \[PATCH for-next V1\] RDMA/cma: Fix multicast joins of the IPoIB port space to be consistent - From: Or Gerlitz \ - Date: 2012-08-30 09:09:55 - List: linux-rdma - Page: https://ratatoskr.run/linux-rdma/2012/08/15419082 - Thread: https://ratatoskr.run/linux-rdma/2012/08/15419082/t.md ```text From: Dotan Barak CMA multicast joins done under the ipoib port state must be carried out using the same component mask used by ipoib. Otherwise, its possible for the CMA to create a group to which a join made by ipoib will fail, or vise-versa. So far this wasn't the case, since some of the component mask fields set by ipoib weren't set by the CMA, fix that. Signed-off-by: Dotan Barak Reviewed-by: Jack Morgenstein Acked-by: Sean Hefty Signed-off-by: Or Gerlitz --- changes from V0: - removed setting of the multicast record fields, since they are kept in the ib sa client data base, only deal with the component mask fields. drivers/infiniband/core/cma.c | 7 +++++-- 1 files changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index 7172559..af3565c 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -3056,9 +3056,12 @@ static int cma_join_ib_multicast(struct rdma_id_private *id_priv, IB_SA_MCMEMBER_REC_FLOW_LABEL | IB_SA_MCMEMBER_REC_TRAFFIC_CLASS; - if (id_priv->id.ps == RDMA_PS_IPOIB) + if (id_priv->id.ps == RDMA_PS_IPOIB) comp_mask |= IB_SA_MCMEMBER_REC_RATE | - IB_SA_MCMEMBER_REC_RATE_SELECTOR; + IB_SA_MCMEMBER_REC_RATE_SELECTOR | + IB_SA_MCMEMBER_REC_MTU_SELECTOR | + IB_SA_MCMEMBER_REC_MTU | + IB_SA_MCMEMBER_REC_HOP_LIMIT; mc->multicast.ib = ib_sa_join_multicast(&sa_client, id_priv->id.device, id_priv->id.port_num, &rec, -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ```