1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0 3 * 4 * Copyright (c) 2014 Intel Corporation. All rights reserved. 5 * 6 * This software is available to you under a choice of one of two 7 * licenses. You may choose to be licensed under the terms of the GNU 8 * General Public License (GPL) Version 2, available from the file 9 * COPYING in the main directory of this source tree, or the 10 * OpenIB.org BSD license below: 11 * 12 * Redistribution and use in source and binary forms, with or 13 * without modification, are permitted provided that the following 14 * conditions are met: 15 * 16 * - Redistributions of source code must retain the above 17 * copyright notice, this list of conditions and the following 18 * disclaimer. 19 * 20 * - Redistributions in binary form must reproduce the above 21 * copyright notice, this list of conditions and the following 22 * disclaimer in the documentation and/or other materials 23 * provided with the distribution. 24 * 25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 32 * SOFTWARE. 33 */ 34 35 #if !defined(OPA_SMI_H) 36 #define OPA_SMI_H 37 38 #include <rdma/ib_mad.h> 39 #include <rdma/ib_smi.h> 40 41 #define OPA_SMP_LID_DATA_SIZE 2016 42 #define OPA_SMP_DR_DATA_SIZE 1872 43 #define OPA_SMP_MAX_PATH_HOPS 64 44 45 #define OPA_MAX_VLS 32 46 #define OPA_MAX_SLS 32 47 #define OPA_MAX_SCS 32 48 49 #define OPA_SMI_CLASS_VERSION 0x80 50 51 #define OPA_LID_PERMISSIVE cpu_to_be32(0xFFFFFFFF) 52 53 struct opa_smp { 54 u8 base_version; 55 u8 mgmt_class; 56 u8 class_version; 57 u8 method; 58 __be16 status; 59 u8 hop_ptr; 60 u8 hop_cnt; 61 __be64 tid; 62 __be16 attr_id; 63 __be16 resv; 64 __be32 attr_mod; 65 __be64 mkey; 66 union { 67 struct { 68 uint8_t data[OPA_SMP_LID_DATA_SIZE]; 69 } lid; 70 struct { 71 __be32 dr_slid; 72 __be32 dr_dlid; 73 u8 initial_path[OPA_SMP_MAX_PATH_HOPS]; 74 u8 return_path[OPA_SMP_MAX_PATH_HOPS]; 75 u8 reserved[8]; 76 u8 data[OPA_SMP_DR_DATA_SIZE]; 77 } dr; 78 } route; 79 } __packed; 80 81 82 /* Subnet management attributes */ 83 /* ... */ 84 #define OPA_ATTRIB_ID_NODE_DESCRIPTION cpu_to_be16(0x0010) 85 #define OPA_ATTRIB_ID_NODE_INFO cpu_to_be16(0x0011) 86 #define OPA_ATTRIB_ID_PORT_INFO cpu_to_be16(0x0015) 87 #define OPA_ATTRIB_ID_PARTITION_TABLE cpu_to_be16(0x0016) 88 #define OPA_ATTRIB_ID_SL_TO_SC_MAP cpu_to_be16(0x0017) 89 #define OPA_ATTRIB_ID_VL_ARBITRATION cpu_to_be16(0x0018) 90 #define OPA_ATTRIB_ID_SM_INFO cpu_to_be16(0x0020) 91 #define OPA_ATTRIB_ID_CABLE_INFO cpu_to_be16(0x0032) 92 #define OPA_ATTRIB_ID_AGGREGATE cpu_to_be16(0x0080) 93 #define OPA_ATTRIB_ID_SC_TO_SL_MAP cpu_to_be16(0x0082) 94 #define OPA_ATTRIB_ID_SC_TO_VLR_MAP cpu_to_be16(0x0083) 95 #define OPA_ATTRIB_ID_SC_TO_VLT_MAP cpu_to_be16(0x0084) 96 #define OPA_ATTRIB_ID_SC_TO_VLNT_MAP cpu_to_be16(0x0085) 97 /* ... */ 98 #define OPA_ATTRIB_ID_PORT_STATE_INFO cpu_to_be16(0x0087) 99 /* ... */ 100 #define OPA_ATTRIB_ID_BUFFER_CONTROL_TABLE cpu_to_be16(0x008A) 101 /* ... */ 102 103 struct opa_node_description { 104 u8 data[64]; 105 } __attribute__ ((packed)); 106 107 struct opa_node_info { 108 u8 base_version; 109 u8 class_version; 110 u8 node_type; 111 u8 num_ports; 112 __be32 reserved; 113 __be64 system_image_guid; 114 __be64 node_guid; 115 __be64 port_guid; 116 __be16 partition_cap; 117 __be16 device_id; 118 __be32 revision; 119 u8 local_port_num; 120 u8 vendor_id[3]; /* network byte order */ 121 } __attribute__ ((packed)); 122 123 #define OPA_PARTITION_TABLE_BLK_SIZE 32 124 125 static inline u8 126 opa_get_smp_direction(const struct opa_smp *smp) 127 { 128 return ib_get_smp_direction((const struct ib_smp *)smp); 129 } 130 131 static inline u8 *opa_get_smp_data(struct opa_smp *smp) 132 { 133 if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) 134 return smp->route.dr.data; 135 136 return smp->route.lid.data; 137 } 138 139 static inline size_t opa_get_smp_data_size(const struct opa_smp *smp) 140 { 141 if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) 142 return sizeof(smp->route.dr.data); 143 144 return sizeof(smp->route.lid.data); 145 } 146 147 static inline size_t opa_get_smp_header_size(const struct opa_smp *smp) 148 { 149 if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) 150 return sizeof(*smp) - sizeof(smp->route.dr.data); 151 152 return sizeof(*smp) - sizeof(smp->route.lid.data); 153 } 154 155 #endif /* OPA_SMI_H */ 156