1 /* 2 * Copyright (c) 2014 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 "mlx5_ib.h" 34 35 #define COPY_ODP_BIT_MLX_TO_IB(reg, ib_caps, field_name, bit_name) do { \ 36 if (be32_to_cpu(reg.field_name) & MLX5_ODP_SUPPORT_##bit_name) \ 37 ib_caps->field_name |= IB_ODP_SUPPORT_##bit_name; \ 38 } while (0) 39 40 int mlx5_ib_internal_query_odp_caps(struct mlx5_ib_dev *dev) 41 { 42 int err; 43 struct mlx5_odp_caps hw_caps; 44 struct ib_odp_caps *caps = &dev->odp_caps; 45 46 memset(caps, 0, sizeof(*caps)); 47 48 if (!(dev->mdev->caps.gen.flags & MLX5_DEV_CAP_FLAG_ON_DMND_PG)) 49 return 0; 50 51 err = mlx5_query_odp_caps(dev->mdev, &hw_caps); 52 if (err) 53 goto out; 54 55 /* At this point we would copy the capability bits that the driver 56 * supports from the hw_caps struct to the caps struct. However, no 57 * such capabilities are supported so far. */ 58 out: 59 return err; 60 } 61