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0001 /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
0002 /*
0003  * Copyright (c) 2020, Mellanox Technologies inc. All rights reserved.
0004  *
0005  * This file is IBTA volume 1, chapter 12 declarations:
0006  *  CHAPTER 12: COMMUNICATION MANAGEMENT
0007  */
0008 #ifndef _IBTA_VOL1_C12_H_
0009 #define _IBTA_VOL1_C12_H_
0010 
0011 #include <rdma/iba.h>
0012 
0013 #define CM_FIELD_BLOC(field_struct, byte_offset, bits_offset, width)           \
0014     IBA_FIELD_BLOC(field_struct,                                           \
0015                (byte_offset + sizeof(struct ib_mad_hdr)), bits_offset, \
0016                width)
0017 #define CM_FIELD8_LOC(field_struct, byte_offset, width)                        \
0018     IBA_FIELD8_LOC(field_struct,                                           \
0019                (byte_offset + sizeof(struct ib_mad_hdr)), width)
0020 #define CM_FIELD16_LOC(field_struct, byte_offset, width)                       \
0021     IBA_FIELD16_LOC(field_struct,                                          \
0022             (byte_offset + sizeof(struct ib_mad_hdr)), width)
0023 #define CM_FIELD32_LOC(field_struct, byte_offset, width)                       \
0024     IBA_FIELD32_LOC(field_struct,                                          \
0025             (byte_offset + sizeof(struct ib_mad_hdr)), width)
0026 #define CM_FIELD64_LOC(field_struct, byte_offset)                              \
0027     IBA_FIELD64_LOC(field_struct, (byte_offset + sizeof(struct ib_mad_hdr)))
0028 #define CM_FIELD_MLOC(field_struct, byte_offset, width, type)                  \
0029     IBA_FIELD_MLOC(field_struct,                                           \
0030                (byte_offset + sizeof(struct ib_mad_hdr)), width, type)
0031 #define CM_STRUCT(field_struct, total_len)                                     \
0032     field_struct                                                           \
0033     {                                                                      \
0034         struct ib_mad_hdr hdr;                                         \
0035         u32 _data[(total_len) / 32 +                                   \
0036               BUILD_BUG_ON_ZERO((total_len) % 32 != 0)];           \
0037     }
0038 
0039 /* Table 106 REQ Message Contents */
0040 #define CM_REQ_LOCAL_COMM_ID CM_FIELD32_LOC(struct cm_req_msg, 0, 32)
0041 #define CM_REQ_VENDOR_ID CM_FIELD32_LOC(struct cm_req_msg, 5, 24)
0042 #define CM_REQ_SERVICE_ID CM_FIELD64_LOC(struct cm_req_msg, 8)
0043 #define CM_REQ_LOCAL_CA_GUID CM_FIELD64_LOC(struct cm_req_msg, 16)
0044 #define CM_REQ_LOCAL_Q_KEY CM_FIELD32_LOC(struct cm_req_msg, 28, 32)
0045 #define CM_REQ_LOCAL_QPN CM_FIELD32_LOC(struct cm_req_msg, 32, 24)
0046 #define CM_REQ_RESPONDER_RESOURCES CM_FIELD8_LOC(struct cm_req_msg, 35, 8)
0047 #define CM_REQ_LOCAL_EECN CM_FIELD32_LOC(struct cm_req_msg, 36, 24)
0048 #define CM_REQ_INITIATOR_DEPTH CM_FIELD8_LOC(struct cm_req_msg, 39, 8)
0049 #define CM_REQ_REMOTE_EECN CM_FIELD32_LOC(struct cm_req_msg, 40, 24)
0050 #define CM_REQ_REMOTE_CM_RESPONSE_TIMEOUT                                      \
0051     CM_FIELD8_LOC(struct cm_req_msg, 43, 5)
0052 #define CM_REQ_TRANSPORT_SERVICE_TYPE CM_FIELD_BLOC(struct cm_req_msg, 43, 5, 2)
0053 #define CM_REQ_END_TO_END_FLOW_CONTROL                                         \
0054     CM_FIELD_BLOC(struct cm_req_msg, 43, 7, 1)
0055 #define CM_REQ_STARTING_PSN CM_FIELD32_LOC(struct cm_req_msg, 44, 24)
0056 #define CM_REQ_LOCAL_CM_RESPONSE_TIMEOUT CM_FIELD8_LOC(struct cm_req_msg, 47, 5)
0057 #define CM_REQ_RETRY_COUNT CM_FIELD_BLOC(struct cm_req_msg, 47, 5, 3)
0058 #define CM_REQ_PARTITION_KEY CM_FIELD16_LOC(struct cm_req_msg, 48, 16)
0059 #define CM_REQ_PATH_PACKET_PAYLOAD_MTU CM_FIELD8_LOC(struct cm_req_msg, 50, 4)
0060 #define CM_REQ_RDC_EXISTS CM_FIELD_BLOC(struct cm_req_msg, 50, 4, 1)
0061 #define CM_REQ_RNR_RETRY_COUNT CM_FIELD_BLOC(struct cm_req_msg, 50, 5, 3)
0062 #define CM_REQ_MAX_CM_RETRIES CM_FIELD8_LOC(struct cm_req_msg, 51, 4)
0063 #define CM_REQ_SRQ CM_FIELD_BLOC(struct cm_req_msg, 51, 4, 1)
0064 #define CM_REQ_EXTENDED_TRANSPORT_TYPE                                         \
0065     CM_FIELD_BLOC(struct cm_req_msg, 51, 5, 3)
0066 #define CM_REQ_PRIMARY_LOCAL_PORT_LID CM_FIELD16_LOC(struct cm_req_msg, 52, 16)
0067 #define CM_REQ_PRIMARY_REMOTE_PORT_LID CM_FIELD16_LOC(struct cm_req_msg, 54, 16)
0068 #define CM_REQ_PRIMARY_LOCAL_PORT_GID                                          \
0069     CM_FIELD_MLOC(struct cm_req_msg, 56, 128, union ib_gid)
0070 #define CM_REQ_PRIMARY_REMOTE_PORT_GID                                         \
0071     CM_FIELD_MLOC(struct cm_req_msg, 72, 128, union ib_gid)
0072 #define CM_REQ_PRIMARY_FLOW_LABEL CM_FIELD32_LOC(struct cm_req_msg, 88, 20)
0073 #define CM_REQ_PRIMARY_PACKET_RATE CM_FIELD_BLOC(struct cm_req_msg, 91, 2, 6)
0074 #define CM_REQ_PRIMARY_TRAFFIC_CLASS CM_FIELD8_LOC(struct cm_req_msg, 92, 8)
0075 #define CM_REQ_PRIMARY_HOP_LIMIT CM_FIELD8_LOC(struct cm_req_msg, 93, 8)
0076 #define CM_REQ_PRIMARY_SL CM_FIELD8_LOC(struct cm_req_msg, 94, 4)
0077 #define CM_REQ_PRIMARY_SUBNET_LOCAL CM_FIELD_BLOC(struct cm_req_msg, 94, 4, 1)
0078 #define CM_REQ_PRIMARY_LOCAL_ACK_TIMEOUT CM_FIELD8_LOC(struct cm_req_msg, 95, 5)
0079 #define CM_REQ_ALTERNATE_LOCAL_PORT_LID                                        \
0080     CM_FIELD16_LOC(struct cm_req_msg, 96, 16)
0081 #define CM_REQ_ALTERNATE_REMOTE_PORT_LID                                       \
0082     CM_FIELD16_LOC(struct cm_req_msg, 98, 16)
0083 #define CM_REQ_ALTERNATE_LOCAL_PORT_GID                                        \
0084     CM_FIELD_MLOC(struct cm_req_msg, 100, 128, union ib_gid)
0085 #define CM_REQ_ALTERNATE_REMOTE_PORT_GID                                       \
0086     CM_FIELD_MLOC(struct cm_req_msg, 116, 128, union ib_gid)
0087 #define CM_REQ_ALTERNATE_FLOW_LABEL CM_FIELD32_LOC(struct cm_req_msg, 132, 20)
0088 #define CM_REQ_ALTERNATE_PACKET_RATE CM_FIELD_BLOC(struct cm_req_msg, 135, 2, 6)
0089 #define CM_REQ_ALTERNATE_TRAFFIC_CLASS CM_FIELD8_LOC(struct cm_req_msg, 136, 8)
0090 #define CM_REQ_ALTERNATE_HOP_LIMIT CM_FIELD8_LOC(struct cm_req_msg, 137, 8)
0091 #define CM_REQ_ALTERNATE_SL CM_FIELD8_LOC(struct cm_req_msg, 138, 4)
0092 #define CM_REQ_ALTERNATE_SUBNET_LOCAL                                          \
0093     CM_FIELD_BLOC(struct cm_req_msg, 138, 4, 1)
0094 #define CM_REQ_ALTERNATE_LOCAL_ACK_TIMEOUT                                     \
0095     CM_FIELD8_LOC(struct cm_req_msg, 139, 5)
0096 #define CM_REQ_SAP_SUPPORTED CM_FIELD_BLOC(struct cm_req_msg, 139, 5, 1)
0097 #define CM_REQ_PRIVATE_DATA CM_FIELD_MLOC(struct cm_req_msg, 140, 736, void)
0098 CM_STRUCT(struct cm_req_msg, 140 * 8 + 736);
0099 
0100 /* Table 107 MRA Message Contents */
0101 #define CM_MRA_LOCAL_COMM_ID CM_FIELD32_LOC(struct cm_mra_msg, 0, 32)
0102 #define CM_MRA_REMOTE_COMM_ID CM_FIELD32_LOC(struct cm_mra_msg, 4, 32)
0103 #define CM_MRA_MESSAGE_MRAED CM_FIELD8_LOC(struct cm_mra_msg, 8, 2)
0104 #define CM_MRA_SERVICE_TIMEOUT CM_FIELD8_LOC(struct cm_mra_msg, 9, 5)
0105 #define CM_MRA_PRIVATE_DATA CM_FIELD_MLOC(struct cm_mra_msg, 10, 1776, void)
0106 CM_STRUCT(struct cm_mra_msg, 10 * 8 + 1776);
0107 
0108 /* Table 108 REJ Message Contents */
0109 #define CM_REJ_LOCAL_COMM_ID CM_FIELD32_LOC(struct cm_rej_msg, 0, 32)
0110 #define CM_REJ_REMOTE_COMM_ID CM_FIELD32_LOC(struct cm_rej_msg, 4, 32)
0111 #define CM_REJ_MESSAGE_REJECTED CM_FIELD8_LOC(struct cm_rej_msg, 8, 2)
0112 #define CM_REJ_REJECTED_INFO_LENGTH CM_FIELD8_LOC(struct cm_rej_msg, 9, 7)
0113 #define CM_REJ_REASON CM_FIELD16_LOC(struct cm_rej_msg, 10, 16)
0114 #define CM_REJ_ARI CM_FIELD_MLOC(struct cm_rej_msg, 12, 576, void)
0115 #define CM_REJ_PRIVATE_DATA CM_FIELD_MLOC(struct cm_rej_msg, 84, 1184, void)
0116 CM_STRUCT(struct cm_rej_msg, 84 * 8 + 1184);
0117 
0118 /* Table 110 REP Message Contents */
0119 #define CM_REP_LOCAL_COMM_ID CM_FIELD32_LOC(struct cm_rep_msg, 0, 32)
0120 #define CM_REP_REMOTE_COMM_ID CM_FIELD32_LOC(struct cm_rep_msg, 4, 32)
0121 #define CM_REP_LOCAL_Q_KEY CM_FIELD32_LOC(struct cm_rep_msg, 8, 32)
0122 #define CM_REP_LOCAL_QPN CM_FIELD32_LOC(struct cm_rep_msg, 12, 24)
0123 #define CM_REP_VENDOR_ID_H CM_FIELD8_LOC(struct cm_rep_msg, 15, 8)
0124 #define CM_REP_LOCAL_EE_CONTEXT_NUMBER CM_FIELD32_LOC(struct cm_rep_msg, 16, 24)
0125 #define CM_REP_VENDOR_ID_M CM_FIELD8_LOC(struct cm_rep_msg, 19, 8)
0126 #define CM_REP_STARTING_PSN CM_FIELD32_LOC(struct cm_rep_msg, 20, 24)
0127 #define CM_REP_VENDOR_ID_L CM_FIELD8_LOC(struct cm_rep_msg, 23, 8)
0128 #define CM_REP_RESPONDER_RESOURCES CM_FIELD8_LOC(struct cm_rep_msg, 24, 8)
0129 #define CM_REP_INITIATOR_DEPTH CM_FIELD8_LOC(struct cm_rep_msg, 25, 8)
0130 #define CM_REP_TARGET_ACK_DELAY CM_FIELD8_LOC(struct cm_rep_msg, 26, 5)
0131 #define CM_REP_FAILOVER_ACCEPTED CM_FIELD_BLOC(struct cm_rep_msg, 26, 5, 2)
0132 #define CM_REP_END_TO_END_FLOW_CONTROL                                         \
0133     CM_FIELD_BLOC(struct cm_rep_msg, 26, 7, 1)
0134 #define CM_REP_RNR_RETRY_COUNT CM_FIELD8_LOC(struct cm_rep_msg, 27, 3)
0135 #define CM_REP_SRQ CM_FIELD_BLOC(struct cm_rep_msg, 27, 3, 1)
0136 #define CM_REP_LOCAL_CA_GUID CM_FIELD64_LOC(struct cm_rep_msg, 28)
0137 #define CM_REP_PRIVATE_DATA CM_FIELD_MLOC(struct cm_rep_msg, 36, 1568, void)
0138 CM_STRUCT(struct cm_rep_msg, 36 * 8 + 1568);
0139 
0140 /* Table 111 RTU Message Contents */
0141 #define CM_RTU_LOCAL_COMM_ID CM_FIELD32_LOC(struct cm_rtu_msg, 0, 32)
0142 #define CM_RTU_REMOTE_COMM_ID CM_FIELD32_LOC(struct cm_rtu_msg, 4, 32)
0143 #define CM_RTU_PRIVATE_DATA CM_FIELD_MLOC(struct cm_rtu_msg, 8, 1792, void)
0144 CM_STRUCT(struct cm_rtu_msg, 8 * 8 + 1792);
0145 
0146 /* Table 112 DREQ Message Contents */
0147 #define CM_DREQ_LOCAL_COMM_ID CM_FIELD32_LOC(struct cm_dreq_msg, 0, 32)
0148 #define CM_DREQ_REMOTE_COMM_ID CM_FIELD32_LOC(struct cm_dreq_msg, 4, 32)
0149 #define CM_DREQ_REMOTE_QPN_EECN CM_FIELD32_LOC(struct cm_dreq_msg, 8, 24)
0150 #define CM_DREQ_PRIVATE_DATA CM_FIELD_MLOC(struct cm_dreq_msg, 12, 1760, void)
0151 CM_STRUCT(struct cm_dreq_msg, 12 * 8 + 1760);
0152 
0153 /* Table 113 DREP Message Contents */
0154 #define CM_DREP_LOCAL_COMM_ID CM_FIELD32_LOC(struct cm_drep_msg, 0, 32)
0155 #define CM_DREP_REMOTE_COMM_ID CM_FIELD32_LOC(struct cm_drep_msg, 4, 32)
0156 #define CM_DREP_PRIVATE_DATA CM_FIELD_MLOC(struct cm_drep_msg, 8, 1792, void)
0157 CM_STRUCT(struct cm_drep_msg, 8 * 8 + 1792);
0158 
0159 /* Table 115 LAP Message Contents */
0160 #define CM_LAP_LOCAL_COMM_ID CM_FIELD32_LOC(struct cm_lap_msg, 0, 32)
0161 #define CM_LAP_REMOTE_COMM_ID CM_FIELD32_LOC(struct cm_lap_msg, 4, 32)
0162 #define CM_LAP_REMOTE_QPN_EECN CM_FIELD32_LOC(struct cm_lap_msg, 12, 24)
0163 #define CM_LAP_REMOTE_CM_RESPONSE_TIMEOUT                                      \
0164     CM_FIELD8_LOC(struct cm_lap_msg, 15, 5)
0165 #define CM_LAP_ALTERNATE_LOCAL_PORT_LID                                        \
0166     CM_FIELD16_LOC(struct cm_lap_msg, 20, 16)
0167 #define CM_LAP_ALTERNATE_REMOTE_PORT_LID                                       \
0168     CM_FIELD16_LOC(struct cm_lap_msg, 22, 16)
0169 #define CM_LAP_ALTERNATE_LOCAL_PORT_GID                                        \
0170     CM_FIELD_MLOC(struct cm_lap_msg, 24, 128, union ib_gid)
0171 #define CM_LAP_ALTERNATE_REMOTE_PORT_GID                                       \
0172     CM_FIELD_MLOC(struct cm_lap_msg, 40, 128, union ib_gid)
0173 #define CM_LAP_ALTERNATE_FLOW_LABEL CM_FIELD32_LOC(struct cm_lap_msg, 56, 20)
0174 #define CM_LAP_ALTERNATE_TRAFFIC_CLASS CM_FIELD8_LOC(struct cm_lap_msg, 59, 8)
0175 #define CM_LAP_ALTERNATE_HOP_LIMIT CM_FIELD8_LOC(struct cm_lap_msg, 60, 8)
0176 #define CM_LAP_ALTERNATE_PACKET_RATE CM_FIELD_BLOC(struct cm_lap_msg, 61, 2, 6)
0177 #define CM_LAP_ALTERNATE_SL CM_FIELD8_LOC(struct cm_lap_msg, 62, 4)
0178 #define CM_LAP_ALTERNATE_SUBNET_LOCAL CM_FIELD_BLOC(struct cm_lap_msg, 62, 4, 1)
0179 #define CM_LAP_ALTERNATE_LOCAL_ACK_TIMEOUT                                     \
0180     CM_FIELD8_LOC(struct cm_lap_msg, 63, 5)
0181 #define CM_LAP_PRIVATE_DATA CM_FIELD_MLOC(struct cm_lap_msg, 64, 1344, void)
0182 CM_STRUCT(struct cm_lap_msg, 64 * 8 + 1344);
0183 
0184 /* Table 116 APR Message Contents */
0185 #define CM_APR_LOCAL_COMM_ID CM_FIELD32_LOC(struct cm_apr_msg, 0, 32)
0186 #define CM_APR_REMOTE_COMM_ID CM_FIELD32_LOC(struct cm_apr_msg, 4, 32)
0187 #define CM_APR_ADDITIONAL_INFORMATION_LENGTH                                   \
0188     CM_FIELD8_LOC(struct cm_apr_msg, 8, 8)
0189 #define CM_APR_AR_STATUS CM_FIELD8_LOC(struct cm_apr_msg, 9, 8)
0190 #define CM_APR_ADDITIONAL_INFORMATION                                          \
0191     CM_FIELD_MLOC(struct cm_apr_msg, 12, 576, void)
0192 #define CM_APR_PRIVATE_DATA CM_FIELD_MLOC(struct cm_apr_msg, 84, 1184, void)
0193 CM_STRUCT(struct cm_apr_msg, 84 * 8 + 1184);
0194 
0195 /* Table 119 SIDR_REQ Message Contents */
0196 #define CM_SIDR_REQ_REQUESTID CM_FIELD32_LOC(struct cm_sidr_req_msg, 0, 32)
0197 #define CM_SIDR_REQ_PARTITION_KEY CM_FIELD16_LOC(struct cm_sidr_req_msg, 4, 16)
0198 #define CM_SIDR_REQ_SERVICEID CM_FIELD64_LOC(struct cm_sidr_req_msg, 8)
0199 #define CM_SIDR_REQ_PRIVATE_DATA                                               \
0200     CM_FIELD_MLOC(struct cm_sidr_req_msg, 16, 1728, void)
0201 CM_STRUCT(struct cm_sidr_req_msg, 16 * 8 + 1728);
0202 
0203 /* Table 120 SIDR_REP Message Contents */
0204 #define CM_SIDR_REP_REQUESTID CM_FIELD32_LOC(struct cm_sidr_rep_msg, 0, 32)
0205 #define CM_SIDR_REP_STATUS CM_FIELD8_LOC(struct cm_sidr_rep_msg, 4, 8)
0206 #define CM_SIDR_REP_ADDITIONAL_INFORMATION_LENGTH                              \
0207     CM_FIELD8_LOC(struct cm_sidr_rep_msg, 5, 8)
0208 #define CM_SIDR_REP_VENDOR_ID_H CM_FIELD16_LOC(struct cm_sidr_rep_msg, 6, 16)
0209 #define CM_SIDR_REP_QPN CM_FIELD32_LOC(struct cm_sidr_rep_msg, 8, 24)
0210 #define CM_SIDR_REP_VENDOR_ID_L CM_FIELD8_LOC(struct cm_sidr_rep_msg, 11, 8)
0211 #define CM_SIDR_REP_SERVICEID CM_FIELD64_LOC(struct cm_sidr_rep_msg, 12)
0212 #define CM_SIDR_REP_Q_KEY CM_FIELD32_LOC(struct cm_sidr_rep_msg, 20, 32)
0213 #define CM_SIDR_REP_ADDITIONAL_INFORMATION                                     \
0214     CM_FIELD_MLOC(struct cm_sidr_rep_msg, 24, 576, void)
0215 #define CM_SIDR_REP_PRIVATE_DATA                                               \
0216     CM_FIELD_MLOC(struct cm_sidr_rep_msg, 96, 1088, void)
0217 CM_STRUCT(struct cm_sidr_rep_msg, 96 * 8 + 1088);
0218 
0219 #endif /* _IBTA_VOL1_C12_H_ */
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