1 /* 2 * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved. 3 * 4 * This software is available to you under a choice of one of two 5 * licenses. You may choose to be licensed under the terms of the GNU 6 * General Public License (GPL) Version 2, available from the file 7 * COPYING in the main directory of this source tree, or the 8 * OpenIB.org BSD license below: 9 * 10 * Redistribution and use in source and binary forms, with or 11 * without modification, are permitted provided that the following 12 * conditions are met: 13 * 14 * - Redistributions of source code must retain the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer. 17 * 18 * - Redistributions in binary form must reproduce the above 19 * copyright notice, this list of conditions and the following 20 * disclaimer in the documentation and/or other materials 21 * provided with the distribution. 22 * 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30 * SOFTWARE. 31 */ 32 33 #include <linux/kernel.h> 34 #include <linux/mlx5/driver.h> 35 #include <rdma/ib_verbs.h> 36 #include "mlx5_core.h" 37 38 int mlx5_core_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn) 39 { 40 u32 in[MLX5_ST_SZ_DW(attach_to_mcg_in)] = {}; 41 void *gid; 42 43 MLX5_SET(attach_to_mcg_in, in, opcode, MLX5_CMD_OP_ATTACH_TO_MCG); 44 MLX5_SET(attach_to_mcg_in, in, qpn, qpn); 45 gid = MLX5_ADDR_OF(attach_to_mcg_in, in, multicast_gid); 46 memcpy(gid, mgid, sizeof(*mgid)); 47 return mlx5_cmd_exec_in(dev, attach_to_mcg, in); 48 } 49 EXPORT_SYMBOL(mlx5_core_attach_mcg); 50 51 int mlx5_core_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn) 52 { 53 u32 in[MLX5_ST_SZ_DW(detach_from_mcg_in)] = {}; 54 void *gid; 55 56 MLX5_SET(detach_from_mcg_in, in, opcode, MLX5_CMD_OP_DETACH_FROM_MCG); 57 MLX5_SET(detach_from_mcg_in, in, qpn, qpn); 58 gid = MLX5_ADDR_OF(detach_from_mcg_in, in, multicast_gid); 59 memcpy(gid, mgid, sizeof(*mgid)); 60 return mlx5_cmd_exec_in(dev, detach_from_mcg, in); 61 } 62 EXPORT_SYMBOL(mlx5_core_detach_mcg); 63