From c1bd6cde8efda081af9d4f1fa4105e114b9b5cf5 Mon Sep 17 00:00:00 2001 From: Moni Shoua Date: Wed, 19 Nov 2014 11:28:18 +0200 Subject: [PATCH] IB/core: Do not resolve VLAN if already resolved For RoCE, resolution of layer 2 address attributes forces no VLAN if link-local GIDs are used. This patch allows applications to choose the VLAN ID for link-local based RoCE GIDs by setting IB_QP_VID in their QP attribute mask, and prevents the core from overriding this choice. Cc: Ursula Braun Signed-off-by: Moni Shoua Signed-off-by: Or Gerlitz Signed-off-by: Roland Dreier --- drivers/infiniband/core/verbs.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c index c2b89cc5dbca..f93eb8da7b5a 100644 --- a/drivers/infiniband/core/verbs.c +++ b/drivers/infiniband/core/verbs.c @@ -879,7 +879,8 @@ int ib_resolve_eth_l2_attrs(struct ib_qp *qp, if (rdma_link_local_addr((struct in6_addr *)qp_attr->ah_attr.grh.dgid.raw)) { rdma_get_ll_mac((struct in6_addr *)qp_attr->ah_attr.grh.dgid.raw, qp_attr->ah_attr.dmac); rdma_get_ll_mac((struct in6_addr *)sgid.raw, qp_attr->smac); - qp_attr->vlan_id = rdma_get_vlan_id(&sgid); + if (!(*qp_attr_mask & IB_QP_VID)) + qp_attr->vlan_id = rdma_get_vlan_id(&sgid); } else { ret = rdma_addr_find_dmac_by_grh(&sgid, &qp_attr->ah_attr.grh.dgid, qp_attr->ah_attr.dmac, &qp_attr->vlan_id); -- 2.39.2