RDMA/mlx5: Promote RSS RAW QP attribute check in higher level

Perform check of attributes of RAW PACKET QP in separate function.

Link: https://lore.kernel.org/r/20200427154636.381474-22-leon@kernel.orgReviewed-by: NMaor Gottlieb <maorg@mellanox.com>
Signed-off-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

drivers/infiniband/hw/mlx5/qp.c

@@ -1645,9 +1645,6 @@ static int create_rss_raw_qp_tir(struct ib_pd *pd, struct mlx5_ib_qp *qp,
 	size_t required_cmd_sz;
 	u8 lb_flag = 0;
 
-	if (init_attr->send_cq)
-		return -EINVAL;
-
 	min_resp_len = offsetof(typeof(resp), bfreg_index) + sizeof(resp.bfreg_index);
 	if (udata->outlen < min_resp_len)
 		return -EINVAL;
@@ -2693,6 +2690,9 @@ static int check_qp_attr(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp,
 			      -EINVAL :
 			      0;
 		break;
+	case IB_QPT_RAW_PACKET:
+		ret = (attr->rwq_ind_tbl && attr->send_cq) ? -EINVAL : 0;
+		break;
 	default:
 		break;
 	}