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IB/core: Attempt DMAC resolution for only RoCE

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Instead of returning 0 (success) for RoCE scenarios where DMAC should
not be resolved, avoid such attempt and make code consistent with
ib_create_user_ah().

Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Parav Pandit 2018-01-09 15:24:52 +02:00 committed by Jason Gunthorpe
parent b96ac05a87
commit f2290d6d52
1 changed files with 2 additions and 4 deletions
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6
drivers/infiniband/core/verbs.c
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@ -1301,9 +1301,6 @@ static int ib_resolve_eth_dmac(struct ib_device *device,
if (!rdma_is_port_valid(device, rdma_ah_get_port_num(ah_attr)))
return -EINVAL;
if (ah_attr->type != RDMA_AH_ATTR_TYPE_ROCE)
return 0;
grh = rdma_ah_retrieve_grh(ah_attr);
if (rdma_is_multicast_addr((struct in6_addr *)ah_attr->grh.dgid.raw)) {
@ -1369,7 +1366,8 @@ int ib_modify_qp_with_udata(struct ib_qp *ib_qp, struct ib_qp_attr *attr,
struct ib_qp *qp = ib_qp->real_qp;
int ret;
if (attr_mask & IB_QP_AV) {
if (attr_mask & IB_QP_AV &&
attr->ah_attr.type == RDMA_AH_ATTR_TYPE_ROCE) {
ret = ib_resolve_eth_dmac(qp->device, &attr->ah_attr);
if (ret)
return ret;