From 824c25c1abe70a527646056f6911d181facde9cc Mon Sep 17 00:00:00 2001 From: Moni Shoua Date: Sun, 8 Feb 2015 11:49:33 +0200 Subject: [PATCH] IB/mlx4: Always use the correct port for mirrored multicast attachments When attaching a QP to a multicast address in bonded mode, there was an assumption that the port of the QP must be #1. This assumption isn't the case under the flow which enables maximal usage of the physical ports. Fix it by always checking the port of the original flow and create the mirrored flow on the other port. Fixes: c6215745b66a ('IB/mlx4: Load balance ports in port aggregation mode') Signed-off-by: Moni Shoua Signed-off-by: Or Gerlitz Signed-off-by: David S. Miller --- drivers/infiniband/hw/mlx4/main.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index 2ed5b996b2f4..3140da518a07 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -1186,6 +1186,9 @@ static struct ib_flow *mlx4_ib_create_flow(struct ib_qp *qp, goto err_create_flow; i++; if (is_bonded) { + /* Application always sees one port so the mirror rule + * must be on port #2 + */ flow_attr->port = 2; err = __mlx4_ib_create_flow(qp, flow_attr, domain, type[j], @@ -1286,7 +1289,8 @@ static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) reg_id.mirror = 0; if (mlx4_is_bonded(dev)) { - err = mlx4_multicast_attach(mdev->dev, &mqp->mqp, gid->raw, 2, + err = mlx4_multicast_attach(mdev->dev, &mqp->mqp, gid->raw, + (mqp->port == 1) ? 2 : 1, !!(mqp->flags & MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK), prot, ®_id.mirror); -- 2.34.1