| Ira Weiny | f28990b | 2015-06-06 14:38:34 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2014 Intel Corporation. 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 | #if !defined(OPA_SMI_H) |
| 34 | #define OPA_SMI_H |
| 35 | |
| 36 | #include <rdma/ib_mad.h> |
| 37 | #include <rdma/ib_smi.h> |
| 38 | |
| 39 | #define OPA_SMP_LID_DATA_SIZE 2016 |
| 40 | #define OPA_SMP_DR_DATA_SIZE 1872 |
| 41 | #define OPA_SMP_MAX_PATH_HOPS 64 |
| 42 | |
| 43 | #define OPA_SMI_CLASS_VERSION 0x80 |
| 44 | |
| 45 | #define OPA_LID_PERMISSIVE cpu_to_be32(0xFFFFFFFF) |
| 46 | |
| 47 | struct opa_smp { |
| 48 | u8 base_version; |
| 49 | u8 mgmt_class; |
| 50 | u8 class_version; |
| 51 | u8 method; |
| 52 | __be16 status; |
| 53 | u8 hop_ptr; |
| 54 | u8 hop_cnt; |
| 55 | __be64 tid; |
| 56 | __be16 attr_id; |
| 57 | __be16 resv; |
| 58 | __be32 attr_mod; |
| 59 | __be64 mkey; |
| 60 | union { |
| 61 | struct { |
| 62 | uint8_t data[OPA_SMP_LID_DATA_SIZE]; |
| 63 | } lid; |
| 64 | struct { |
| 65 | __be32 dr_slid; |
| 66 | __be32 dr_dlid; |
| 67 | u8 initial_path[OPA_SMP_MAX_PATH_HOPS]; |
| 68 | u8 return_path[OPA_SMP_MAX_PATH_HOPS]; |
| 69 | u8 reserved[8]; |
| 70 | u8 data[OPA_SMP_DR_DATA_SIZE]; |
| 71 | } dr; |
| 72 | } route; |
| 73 | } __packed; |
| 74 | |
| 75 | |
| 76 | static inline u8 |
| 77 | opa_get_smp_direction(struct opa_smp *smp) |
| 78 | { |
| 79 | return ib_get_smp_direction((struct ib_smp *)smp); |
| 80 | } |
| 81 | |
| 82 | static inline u8 *opa_get_smp_data(struct opa_smp *smp) |
| 83 | { |
| 84 | if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) |
| 85 | return smp->route.dr.data; |
| 86 | |
| 87 | return smp->route.lid.data; |
| 88 | } |
| 89 | |
| 90 | static inline size_t opa_get_smp_data_size(struct opa_smp *smp) |
| 91 | { |
| 92 | if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) |
| 93 | return sizeof(smp->route.dr.data); |
| 94 | |
| 95 | return sizeof(smp->route.lid.data); |
| 96 | } |
| 97 | |
| 98 | static inline size_t opa_get_smp_header_size(struct opa_smp *smp) |
| 99 | { |
| 100 | if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) |
| 101 | return sizeof(*smp) - sizeof(smp->route.dr.data); |
| 102 | |
| 103 | return sizeof(*smp) - sizeof(smp->route.lid.data); |
| 104 | } |
| 105 | |
| 106 | #endif /* OPA_SMI_H */ |