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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 | /* * Copyright (c) 2004 Topspin Corporation. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * OpenIB.org BSD license below: * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: * * - Redistributions of source code must retain the above * copyright notice, this list of conditions and the following * disclaimer. * * - Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #ifndef IB_PACK_H #define IB_PACK_H #include <rdma/ib_verbs.h> enum { IB_LRH_BYTES = 8, IB_GRH_BYTES = 40, IB_BTH_BYTES = 12, IB_DETH_BYTES = 8 }; struct ib_field { size_t struct_offset_bytes; size_t struct_size_bytes; int offset_words; int offset_bits; int size_bits; char *field_name; }; #define RESERVED \ .field_name = "reserved" /* * This macro cleans up the definitions of constants for BTH opcodes. * It is used to define constants such as IB_OPCODE_UD_SEND_ONLY, * which becomes IB_OPCODE_UD + IB_OPCODE_SEND_ONLY, and this gives * the correct value. * * In short, user code should use the constants defined using the * macro rather than worrying about adding together other constants. */ #define IB_OPCODE(transport, op) \ IB_OPCODE_ ## transport ## _ ## op = \ IB_OPCODE_ ## transport + IB_OPCODE_ ## op enum { /* transport types -- just used to define real constants */ IB_OPCODE_RC = 0x00, IB_OPCODE_UC = 0x20, IB_OPCODE_RD = 0x40, IB_OPCODE_UD = 0x60, /* operations -- just used to define real constants */ IB_OPCODE_SEND_FIRST = 0x00, IB_OPCODE_SEND_MIDDLE = 0x01, IB_OPCODE_SEND_LAST = 0x02, IB_OPCODE_SEND_LAST_WITH_IMMEDIATE = 0x03, IB_OPCODE_SEND_ONLY = 0x04, IB_OPCODE_SEND_ONLY_WITH_IMMEDIATE = 0x05, IB_OPCODE_RDMA_WRITE_FIRST = 0x06, IB_OPCODE_RDMA_WRITE_MIDDLE = 0x07, IB_OPCODE_RDMA_WRITE_LAST = 0x08, IB_OPCODE_RDMA_WRITE_LAST_WITH_IMMEDIATE = 0x09, IB_OPCODE_RDMA_WRITE_ONLY = 0x0a, IB_OPCODE_RDMA_WRITE_ONLY_WITH_IMMEDIATE = 0x0b, IB_OPCODE_RDMA_READ_REQUEST = 0x0c, IB_OPCODE_RDMA_READ_RESPONSE_FIRST = 0x0d, IB_OPCODE_RDMA_READ_RESPONSE_MIDDLE = 0x0e, IB_OPCODE_RDMA_READ_RESPONSE_LAST = 0x0f, IB_OPCODE_RDMA_READ_RESPONSE_ONLY = 0x10, IB_OPCODE_ACKNOWLEDGE = 0x11, IB_OPCODE_ATOMIC_ACKNOWLEDGE = 0x12, IB_OPCODE_COMPARE_SWAP = 0x13, IB_OPCODE_FETCH_ADD = 0x14, /* real constants follow -- see comment about above IB_OPCODE() macro for more details */ /* RC */ IB_OPCODE(RC, SEND_FIRST), IB_OPCODE(RC, SEND_MIDDLE), IB_OPCODE(RC, SEND_LAST), IB_OPCODE(RC, SEND_LAST_WITH_IMMEDIATE), IB_OPCODE(RC, SEND_ONLY), IB_OPCODE(RC, SEND_ONLY_WITH_IMMEDIATE), IB_OPCODE(RC, RDMA_WRITE_FIRST), IB_OPCODE(RC, RDMA_WRITE_MIDDLE), IB_OPCODE(RC, RDMA_WRITE_LAST), IB_OPCODE(RC, RDMA_WRITE_LAST_WITH_IMMEDIATE), IB_OPCODE(RC, RDMA_WRITE_ONLY), IB_OPCODE(RC, RDMA_WRITE_ONLY_WITH_IMMEDIATE), IB_OPCODE(RC, RDMA_READ_REQUEST), IB_OPCODE(RC, RDMA_READ_RESPONSE_FIRST), IB_OPCODE(RC, RDMA_READ_RESPONSE_MIDDLE), IB_OPCODE(RC, RDMA_READ_RESPONSE_LAST), IB_OPCODE(RC, RDMA_READ_RESPONSE_ONLY), IB_OPCODE(RC, ACKNOWLEDGE), IB_OPCODE(RC, ATOMIC_ACKNOWLEDGE), IB_OPCODE(RC, COMPARE_SWAP), IB_OPCODE(RC, FETCH_ADD), /* UC */ IB_OPCODE(UC, SEND_FIRST), IB_OPCODE(UC, SEND_MIDDLE), IB_OPCODE(UC, SEND_LAST), IB_OPCODE(UC, SEND_LAST_WITH_IMMEDIATE), IB_OPCODE(UC, SEND_ONLY), IB_OPCODE(UC, SEND_ONLY_WITH_IMMEDIATE), IB_OPCODE(UC, RDMA_WRITE_FIRST), IB_OPCODE(UC, RDMA_WRITE_MIDDLE), IB_OPCODE(UC, RDMA_WRITE_LAST), IB_OPCODE(UC, RDMA_WRITE_LAST_WITH_IMMEDIATE), IB_OPCODE(UC, RDMA_WRITE_ONLY), IB_OPCODE(UC, RDMA_WRITE_ONLY_WITH_IMMEDIATE), /* RD */ IB_OPCODE(RD, SEND_FIRST), IB_OPCODE(RD, SEND_MIDDLE), IB_OPCODE(RD, SEND_LAST), IB_OPCODE(RD, SEND_LAST_WITH_IMMEDIATE), IB_OPCODE(RD, SEND_ONLY), IB_OPCODE(RD, SEND_ONLY_WITH_IMMEDIATE), IB_OPCODE(RD, RDMA_WRITE_FIRST), IB_OPCODE(RD, RDMA_WRITE_MIDDLE), IB_OPCODE(RD, RDMA_WRITE_LAST), IB_OPCODE(RD, RDMA_WRITE_LAST_WITH_IMMEDIATE), IB_OPCODE(RD, RDMA_WRITE_ONLY), IB_OPCODE(RD, RDMA_WRITE_ONLY_WITH_IMMEDIATE), IB_OPCODE(RD, RDMA_READ_REQUEST), IB_OPCODE(RD, RDMA_READ_RESPONSE_FIRST), IB_OPCODE(RD, RDMA_READ_RESPONSE_MIDDLE), IB_OPCODE(RD, RDMA_READ_RESPONSE_LAST), IB_OPCODE(RD, RDMA_READ_RESPONSE_ONLY), IB_OPCODE(RD, ACKNOWLEDGE), IB_OPCODE(RD, ATOMIC_ACKNOWLEDGE), IB_OPCODE(RD, COMPARE_SWAP), IB_OPCODE(RD, FETCH_ADD), /* UD */ IB_OPCODE(UD, SEND_ONLY), IB_OPCODE(UD, SEND_ONLY_WITH_IMMEDIATE) }; enum { IB_LNH_RAW = 0, IB_LNH_IP = 1, IB_LNH_IBA_LOCAL = 2, IB_LNH_IBA_GLOBAL = 3 }; struct ib_unpacked_lrh { u8 virtual_lane; u8 link_version; u8 service_level; u8 link_next_header; __be16 destination_lid; __be16 packet_length; __be16 source_lid; }; struct ib_unpacked_grh { u8 ip_version; u8 traffic_class; __be32 flow_label; __be16 payload_length; u8 next_header; u8 hop_limit; union ib_gid source_gid; union ib_gid destination_gid; }; struct ib_unpacked_bth { u8 opcode; u8 solicited_event; u8 mig_req; u8 pad_count; u8 transport_header_version; __be16 pkey; __be32 destination_qpn; u8 ack_req; __be32 psn; }; struct ib_unpacked_deth { __be32 qkey; __be32 source_qpn; }; struct ib_ud_header { struct ib_unpacked_lrh lrh; int grh_present; struct ib_unpacked_grh grh; struct ib_unpacked_bth bth; struct ib_unpacked_deth deth; int immediate_present; __be32 immediate_data; }; void ib_pack(const struct ib_field *desc, int desc_len, void *structure, void *buf); void ib_unpack(const struct ib_field *desc, int desc_len, void *buf, void *structure); void ib_ud_header_init(int payload_bytes, int grh_present, int immediate_present, struct ib_ud_header *header); int ib_ud_header_pack(struct ib_ud_header *header, void *buf); int ib_ud_header_unpack(void *buf, struct ib_ud_header *header); #endif /* IB_PACK_H */ |