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_MAX_VLS 32 44 #define OPA_MAX_SLS 32 45 #define OPA_MAX_SCS 32 46 47 #define OPA_LID_PERMISSIVE cpu_to_be32(0xFFFFFFFF) 48 49 struct opa_smp { 50 u8 base_version; 51 u8 mgmt_class; 52 u8 class_version; 53 u8 method; 54 __be16 status; 55 u8 hop_ptr; 56 u8 hop_cnt; 57 __be64 tid; 58 __be16 attr_id; 59 __be16 resv; 60 __be32 attr_mod; 61 __be64 mkey; 62 union { 63 struct { 64 uint8_t data[OPA_SMP_LID_DATA_SIZE]; 65 } lid; 66 struct { 67 __be32 dr_slid; 68 __be32 dr_dlid; 69 u8 initial_path[OPA_SMP_MAX_PATH_HOPS]; 70 u8 return_path[OPA_SMP_MAX_PATH_HOPS]; 71 u8 reserved[8]; 72 u8 data[OPA_SMP_DR_DATA_SIZE]; 73 } dr; 74 } route; 75 } __packed; 76 77 78 /* Subnet management attributes */ 79 /* ... */ 80 #define OPA_ATTRIB_ID_NODE_DESCRIPTION cpu_to_be16(0x0010) 81 #define OPA_ATTRIB_ID_NODE_INFO cpu_to_be16(0x0011) 82 #define OPA_ATTRIB_ID_PORT_INFO cpu_to_be16(0x0015) 83 #define OPA_ATTRIB_ID_PARTITION_TABLE cpu_to_be16(0x0016) 84 #define OPA_ATTRIB_ID_SL_TO_SC_MAP cpu_to_be16(0x0017) 85 #define OPA_ATTRIB_ID_VL_ARBITRATION cpu_to_be16(0x0018) 86 #define OPA_ATTRIB_ID_SM_INFO cpu_to_be16(0x0020) 87 #define OPA_ATTRIB_ID_CABLE_INFO cpu_to_be16(0x0032) 88 #define OPA_ATTRIB_ID_AGGREGATE cpu_to_be16(0x0080) 89 #define OPA_ATTRIB_ID_SC_TO_SL_MAP cpu_to_be16(0x0082) 90 #define OPA_ATTRIB_ID_SC_TO_VLR_MAP cpu_to_be16(0x0083) 91 #define OPA_ATTRIB_ID_SC_TO_VLT_MAP cpu_to_be16(0x0084) 92 #define OPA_ATTRIB_ID_SC_TO_VLNT_MAP cpu_to_be16(0x0085) 93 /* ... */ 94 #define OPA_ATTRIB_ID_PORT_STATE_INFO cpu_to_be16(0x0087) 95 /* ... */ 96 #define OPA_ATTRIB_ID_BUFFER_CONTROL_TABLE cpu_to_be16(0x008A) 97 /* ... */ 98 99 struct opa_node_description { 100 u8 data[64]; 101 } __packed; 102 103 struct opa_node_info { 104 u8 base_version; 105 u8 class_version; 106 u8 node_type; 107 u8 num_ports; 108 __be32 reserved; 109 __be64 system_image_guid; 110 __be64 node_guid; 111 __be64 port_guid; 112 __be16 partition_cap; 113 __be16 device_id; 114 __be32 revision; 115 u8 local_port_num; 116 u8 vendor_id[3]; /* network byte order */ 117 } __packed; 118 119 #define OPA_PARTITION_TABLE_BLK_SIZE 32 120 121 static inline u8 122 opa_get_smp_direction(struct opa_smp *smp) 123 { 124 return ib_get_smp_direction((struct ib_smp *)smp); 125 } 126 127 static inline u8 *opa_get_smp_data(struct opa_smp *smp) 128 { 129 if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) 130 return smp->route.dr.data; 131 132 return smp->route.lid.data; 133 } 134 135 static inline size_t opa_get_smp_data_size(struct opa_smp *smp) 136 { 137 if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) 138 return sizeof(smp->route.dr.data); 139 140 return sizeof(smp->route.lid.data); 141 } 142 143 static inline size_t opa_get_smp_header_size(struct opa_smp *smp) 144 { 145 if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) 146 return sizeof(*smp) - sizeof(smp->route.dr.data); 147 148 return sizeof(*smp) - sizeof(smp->route.lid.data); 149 } 150 151 #endif /* OPA_SMI_H */ 152