Moni Shoua | 8700e3e | 2016-06-16 16:45:23 +0300 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved. |
| 3 | * Copyright (c) 2015 System Fabric Works, Inc. All rights reserved. |
| 4 | * |
| 5 | * This software is available to you under a choice of one of two |
| 6 | * licenses. You may choose to be licensed under the terms of the GNU |
| 7 | * General Public License (GPL) Version 2, available from the file |
| 8 | * COPYING in the main directory of this source tree, or the |
| 9 | * OpenIB.org BSD license below: |
| 10 | * |
| 11 | * Redistribution and use in source and binary forms, with or |
| 12 | * without modification, are permitted provided that the following |
| 13 | * conditions are met: |
| 14 | * |
| 15 | * - Redistributions of source code must retain the above |
| 16 | * copyright notice, this list of conditions and the following |
| 17 | * disclaimer. |
| 18 | * |
| 19 | * - Redistributions in binary form must reproduce the above |
| 20 | * copyright notice, this list of conditions and the following |
| 21 | * disclaimer in the documentation and/or other materials |
| 22 | * provided with the distribution. |
| 23 | * |
| 24 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 25 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 26 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| 27 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| 28 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| 29 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| 30 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 31 | * SOFTWARE. |
| 32 | */ |
| 33 | |
| 34 | #ifndef RXE_HDR_H |
| 35 | #define RXE_HDR_H |
| 36 | |
| 37 | /* extracted information about a packet carried in an sk_buff struct fits in |
| 38 | * the skbuff cb array. Must be at most 48 bytes. stored in control block of |
| 39 | * sk_buff for received packets. |
| 40 | */ |
| 41 | struct rxe_pkt_info { |
| 42 | struct rxe_dev *rxe; /* device that owns packet */ |
| 43 | struct rxe_qp *qp; /* qp that owns packet */ |
| 44 | struct rxe_send_wqe *wqe; /* send wqe */ |
| 45 | u8 *hdr; /* points to bth */ |
| 46 | u32 mask; /* useful info about pkt */ |
| 47 | u32 psn; /* bth psn of packet */ |
| 48 | u16 pkey_index; /* partition of pkt */ |
| 49 | u16 paylen; /* length of bth - icrc */ |
| 50 | u8 port_num; /* port pkt received on */ |
| 51 | u8 opcode; /* bth opcode of packet */ |
| 52 | u8 offset; /* bth offset from pkt->hdr */ |
| 53 | }; |
| 54 | |
| 55 | /* Macros should be used only for received skb */ |
| 56 | #define SKB_TO_PKT(skb) ((struct rxe_pkt_info *)(skb)->cb) |
| 57 | #define PKT_TO_SKB(pkt) container_of((void *)(pkt), struct sk_buff, cb) |
| 58 | |
| 59 | /* |
| 60 | * IBA header types and methods |
| 61 | * |
| 62 | * Some of these are for reference and completeness only since |
| 63 | * rxe does not currently support RD transport |
| 64 | * most of this could be moved into IB core. ib_pack.h has |
| 65 | * part of this but is incomplete |
| 66 | * |
| 67 | * Header specific routines to insert/extract values to/from headers |
| 68 | * the routines that are named __hhh_(set_)fff() take a pointer to a |
| 69 | * hhh header and get(set) the fff field. The routines named |
| 70 | * hhh_(set_)fff take a packet info struct and find the |
| 71 | * header and field based on the opcode in the packet. |
| 72 | * Conversion to/from network byte order from cpu order is also done. |
| 73 | */ |
| 74 | |
| 75 | #define RXE_ICRC_SIZE (4) |
| 76 | #define RXE_MAX_HDR_LENGTH (80) |
| 77 | |
| 78 | /****************************************************************************** |
| 79 | * Base Transport Header |
| 80 | ******************************************************************************/ |
| 81 | struct rxe_bth { |
| 82 | u8 opcode; |
| 83 | u8 flags; |
| 84 | __be16 pkey; |
| 85 | __be32 qpn; |
| 86 | __be32 apsn; |
| 87 | }; |
| 88 | |
| 89 | #define BTH_TVER (0) |
| 90 | #define BTH_DEF_PKEY (0xffff) |
| 91 | |
| 92 | #define BTH_SE_MASK (0x80) |
| 93 | #define BTH_MIG_MASK (0x40) |
| 94 | #define BTH_PAD_MASK (0x30) |
| 95 | #define BTH_TVER_MASK (0x0f) |
| 96 | #define BTH_FECN_MASK (0x80000000) |
| 97 | #define BTH_BECN_MASK (0x40000000) |
| 98 | #define BTH_RESV6A_MASK (0x3f000000) |
| 99 | #define BTH_QPN_MASK (0x00ffffff) |
| 100 | #define BTH_ACK_MASK (0x80000000) |
| 101 | #define BTH_RESV7_MASK (0x7f000000) |
| 102 | #define BTH_PSN_MASK (0x00ffffff) |
| 103 | |
| 104 | static inline u8 __bth_opcode(void *arg) |
| 105 | { |
| 106 | struct rxe_bth *bth = arg; |
| 107 | |
| 108 | return bth->opcode; |
| 109 | } |
| 110 | |
| 111 | static inline void __bth_set_opcode(void *arg, u8 opcode) |
| 112 | { |
| 113 | struct rxe_bth *bth = arg; |
| 114 | |
| 115 | bth->opcode = opcode; |
| 116 | } |
| 117 | |
| 118 | static inline u8 __bth_se(void *arg) |
| 119 | { |
| 120 | struct rxe_bth *bth = arg; |
| 121 | |
| 122 | return 0 != (BTH_SE_MASK & bth->flags); |
| 123 | } |
| 124 | |
| 125 | static inline void __bth_set_se(void *arg, int se) |
| 126 | { |
| 127 | struct rxe_bth *bth = arg; |
| 128 | |
| 129 | if (se) |
| 130 | bth->flags |= BTH_SE_MASK; |
| 131 | else |
| 132 | bth->flags &= ~BTH_SE_MASK; |
| 133 | } |
| 134 | |
| 135 | static inline u8 __bth_mig(void *arg) |
| 136 | { |
| 137 | struct rxe_bth *bth = arg; |
| 138 | |
| 139 | return 0 != (BTH_MIG_MASK & bth->flags); |
| 140 | } |
| 141 | |
| 142 | static inline void __bth_set_mig(void *arg, u8 mig) |
| 143 | { |
| 144 | struct rxe_bth *bth = arg; |
| 145 | |
| 146 | if (mig) |
| 147 | bth->flags |= BTH_MIG_MASK; |
| 148 | else |
| 149 | bth->flags &= ~BTH_MIG_MASK; |
| 150 | } |
| 151 | |
| 152 | static inline u8 __bth_pad(void *arg) |
| 153 | { |
| 154 | struct rxe_bth *bth = arg; |
| 155 | |
| 156 | return (BTH_PAD_MASK & bth->flags) >> 4; |
| 157 | } |
| 158 | |
| 159 | static inline void __bth_set_pad(void *arg, u8 pad) |
| 160 | { |
| 161 | struct rxe_bth *bth = arg; |
| 162 | |
| 163 | bth->flags = (BTH_PAD_MASK & (pad << 4)) | |
| 164 | (~BTH_PAD_MASK & bth->flags); |
| 165 | } |
| 166 | |
| 167 | static inline u8 __bth_tver(void *arg) |
| 168 | { |
| 169 | struct rxe_bth *bth = arg; |
| 170 | |
| 171 | return BTH_TVER_MASK & bth->flags; |
| 172 | } |
| 173 | |
| 174 | static inline void __bth_set_tver(void *arg, u8 tver) |
| 175 | { |
| 176 | struct rxe_bth *bth = arg; |
| 177 | |
| 178 | bth->flags = (BTH_TVER_MASK & tver) | |
| 179 | (~BTH_TVER_MASK & bth->flags); |
| 180 | } |
| 181 | |
| 182 | static inline u16 __bth_pkey(void *arg) |
| 183 | { |
| 184 | struct rxe_bth *bth = arg; |
| 185 | |
| 186 | return be16_to_cpu(bth->pkey); |
| 187 | } |
| 188 | |
| 189 | static inline void __bth_set_pkey(void *arg, u16 pkey) |
| 190 | { |
| 191 | struct rxe_bth *bth = arg; |
| 192 | |
| 193 | bth->pkey = cpu_to_be16(pkey); |
| 194 | } |
| 195 | |
| 196 | static inline u32 __bth_qpn(void *arg) |
| 197 | { |
| 198 | struct rxe_bth *bth = arg; |
| 199 | |
| 200 | return BTH_QPN_MASK & be32_to_cpu(bth->qpn); |
| 201 | } |
| 202 | |
| 203 | static inline void __bth_set_qpn(void *arg, u32 qpn) |
| 204 | { |
| 205 | struct rxe_bth *bth = arg; |
| 206 | u32 resvqpn = be32_to_cpu(bth->qpn); |
| 207 | |
| 208 | bth->qpn = cpu_to_be32((BTH_QPN_MASK & qpn) | |
| 209 | (~BTH_QPN_MASK & resvqpn)); |
| 210 | } |
| 211 | |
| 212 | static inline int __bth_fecn(void *arg) |
| 213 | { |
| 214 | struct rxe_bth *bth = arg; |
| 215 | |
| 216 | return 0 != (cpu_to_be32(BTH_FECN_MASK) & bth->qpn); |
| 217 | } |
| 218 | |
| 219 | static inline void __bth_set_fecn(void *arg, int fecn) |
| 220 | { |
| 221 | struct rxe_bth *bth = arg; |
| 222 | |
| 223 | if (fecn) |
| 224 | bth->qpn |= cpu_to_be32(BTH_FECN_MASK); |
| 225 | else |
| 226 | bth->qpn &= ~cpu_to_be32(BTH_FECN_MASK); |
| 227 | } |
| 228 | |
| 229 | static inline int __bth_becn(void *arg) |
| 230 | { |
| 231 | struct rxe_bth *bth = arg; |
| 232 | |
| 233 | return 0 != (cpu_to_be32(BTH_BECN_MASK) & bth->qpn); |
| 234 | } |
| 235 | |
| 236 | static inline void __bth_set_becn(void *arg, int becn) |
| 237 | { |
| 238 | struct rxe_bth *bth = arg; |
| 239 | |
| 240 | if (becn) |
| 241 | bth->qpn |= cpu_to_be32(BTH_BECN_MASK); |
| 242 | else |
| 243 | bth->qpn &= ~cpu_to_be32(BTH_BECN_MASK); |
| 244 | } |
| 245 | |
| 246 | static inline u8 __bth_resv6a(void *arg) |
| 247 | { |
| 248 | struct rxe_bth *bth = arg; |
| 249 | |
| 250 | return (BTH_RESV6A_MASK & be32_to_cpu(bth->qpn)) >> 24; |
| 251 | } |
| 252 | |
| 253 | static inline void __bth_set_resv6a(void *arg) |
| 254 | { |
| 255 | struct rxe_bth *bth = arg; |
| 256 | |
| 257 | bth->qpn = cpu_to_be32(~BTH_RESV6A_MASK); |
| 258 | } |
| 259 | |
| 260 | static inline int __bth_ack(void *arg) |
| 261 | { |
| 262 | struct rxe_bth *bth = arg; |
| 263 | |
| 264 | return 0 != (cpu_to_be32(BTH_ACK_MASK) & bth->apsn); |
| 265 | } |
| 266 | |
| 267 | static inline void __bth_set_ack(void *arg, int ack) |
| 268 | { |
| 269 | struct rxe_bth *bth = arg; |
| 270 | |
| 271 | if (ack) |
| 272 | bth->apsn |= cpu_to_be32(BTH_ACK_MASK); |
| 273 | else |
| 274 | bth->apsn &= ~cpu_to_be32(BTH_ACK_MASK); |
| 275 | } |
| 276 | |
| 277 | static inline void __bth_set_resv7(void *arg) |
| 278 | { |
| 279 | struct rxe_bth *bth = arg; |
| 280 | |
| 281 | bth->apsn &= ~cpu_to_be32(BTH_RESV7_MASK); |
| 282 | } |
| 283 | |
| 284 | static inline u32 __bth_psn(void *arg) |
| 285 | { |
| 286 | struct rxe_bth *bth = arg; |
| 287 | |
| 288 | return BTH_PSN_MASK & be32_to_cpu(bth->apsn); |
| 289 | } |
| 290 | |
| 291 | static inline void __bth_set_psn(void *arg, u32 psn) |
| 292 | { |
| 293 | struct rxe_bth *bth = arg; |
| 294 | u32 apsn = be32_to_cpu(bth->apsn); |
| 295 | |
| 296 | bth->apsn = cpu_to_be32((BTH_PSN_MASK & psn) | |
| 297 | (~BTH_PSN_MASK & apsn)); |
| 298 | } |
| 299 | |
| 300 | static inline u8 bth_opcode(struct rxe_pkt_info *pkt) |
| 301 | { |
| 302 | return __bth_opcode(pkt->hdr + pkt->offset); |
| 303 | } |
| 304 | |
| 305 | static inline void bth_set_opcode(struct rxe_pkt_info *pkt, u8 opcode) |
| 306 | { |
| 307 | __bth_set_opcode(pkt->hdr + pkt->offset, opcode); |
| 308 | } |
| 309 | |
| 310 | static inline u8 bth_se(struct rxe_pkt_info *pkt) |
| 311 | { |
| 312 | return __bth_se(pkt->hdr + pkt->offset); |
| 313 | } |
| 314 | |
| 315 | static inline void bth_set_se(struct rxe_pkt_info *pkt, int se) |
| 316 | { |
| 317 | __bth_set_se(pkt->hdr + pkt->offset, se); |
| 318 | } |
| 319 | |
| 320 | static inline u8 bth_mig(struct rxe_pkt_info *pkt) |
| 321 | { |
| 322 | return __bth_mig(pkt->hdr + pkt->offset); |
| 323 | } |
| 324 | |
| 325 | static inline void bth_set_mig(struct rxe_pkt_info *pkt, u8 mig) |
| 326 | { |
| 327 | __bth_set_mig(pkt->hdr + pkt->offset, mig); |
| 328 | } |
| 329 | |
| 330 | static inline u8 bth_pad(struct rxe_pkt_info *pkt) |
| 331 | { |
| 332 | return __bth_pad(pkt->hdr + pkt->offset); |
| 333 | } |
| 334 | |
| 335 | static inline void bth_set_pad(struct rxe_pkt_info *pkt, u8 pad) |
| 336 | { |
| 337 | __bth_set_pad(pkt->hdr + pkt->offset, pad); |
| 338 | } |
| 339 | |
| 340 | static inline u8 bth_tver(struct rxe_pkt_info *pkt) |
| 341 | { |
| 342 | return __bth_tver(pkt->hdr + pkt->offset); |
| 343 | } |
| 344 | |
| 345 | static inline void bth_set_tver(struct rxe_pkt_info *pkt, u8 tver) |
| 346 | { |
| 347 | __bth_set_tver(pkt->hdr + pkt->offset, tver); |
| 348 | } |
| 349 | |
| 350 | static inline u16 bth_pkey(struct rxe_pkt_info *pkt) |
| 351 | { |
| 352 | return __bth_pkey(pkt->hdr + pkt->offset); |
| 353 | } |
| 354 | |
| 355 | static inline void bth_set_pkey(struct rxe_pkt_info *pkt, u16 pkey) |
| 356 | { |
| 357 | __bth_set_pkey(pkt->hdr + pkt->offset, pkey); |
| 358 | } |
| 359 | |
| 360 | static inline u32 bth_qpn(struct rxe_pkt_info *pkt) |
| 361 | { |
| 362 | return __bth_qpn(pkt->hdr + pkt->offset); |
| 363 | } |
| 364 | |
| 365 | static inline void bth_set_qpn(struct rxe_pkt_info *pkt, u32 qpn) |
| 366 | { |
| 367 | __bth_set_qpn(pkt->hdr + pkt->offset, qpn); |
| 368 | } |
| 369 | |
| 370 | static inline int bth_fecn(struct rxe_pkt_info *pkt) |
| 371 | { |
| 372 | return __bth_fecn(pkt->hdr + pkt->offset); |
| 373 | } |
| 374 | |
| 375 | static inline void bth_set_fecn(struct rxe_pkt_info *pkt, int fecn) |
| 376 | { |
| 377 | __bth_set_fecn(pkt->hdr + pkt->offset, fecn); |
| 378 | } |
| 379 | |
| 380 | static inline int bth_becn(struct rxe_pkt_info *pkt) |
| 381 | { |
| 382 | return __bth_becn(pkt->hdr + pkt->offset); |
| 383 | } |
| 384 | |
| 385 | static inline void bth_set_becn(struct rxe_pkt_info *pkt, int becn) |
| 386 | { |
| 387 | __bth_set_becn(pkt->hdr + pkt->offset, becn); |
| 388 | } |
| 389 | |
| 390 | static inline u8 bth_resv6a(struct rxe_pkt_info *pkt) |
| 391 | { |
| 392 | return __bth_resv6a(pkt->hdr + pkt->offset); |
| 393 | } |
| 394 | |
| 395 | static inline void bth_set_resv6a(struct rxe_pkt_info *pkt) |
| 396 | { |
| 397 | __bth_set_resv6a(pkt->hdr + pkt->offset); |
| 398 | } |
| 399 | |
| 400 | static inline int bth_ack(struct rxe_pkt_info *pkt) |
| 401 | { |
| 402 | return __bth_ack(pkt->hdr + pkt->offset); |
| 403 | } |
| 404 | |
| 405 | static inline void bth_set_ack(struct rxe_pkt_info *pkt, int ack) |
| 406 | { |
| 407 | __bth_set_ack(pkt->hdr + pkt->offset, ack); |
| 408 | } |
| 409 | |
| 410 | static inline void bth_set_resv7(struct rxe_pkt_info *pkt) |
| 411 | { |
| 412 | __bth_set_resv7(pkt->hdr + pkt->offset); |
| 413 | } |
| 414 | |
| 415 | static inline u32 bth_psn(struct rxe_pkt_info *pkt) |
| 416 | { |
| 417 | return __bth_psn(pkt->hdr + pkt->offset); |
| 418 | } |
| 419 | |
| 420 | static inline void bth_set_psn(struct rxe_pkt_info *pkt, u32 psn) |
| 421 | { |
| 422 | __bth_set_psn(pkt->hdr + pkt->offset, psn); |
| 423 | } |
| 424 | |
| 425 | static inline void bth_init(struct rxe_pkt_info *pkt, u8 opcode, int se, |
| 426 | int mig, int pad, u16 pkey, u32 qpn, int ack_req, |
| 427 | u32 psn) |
| 428 | { |
| 429 | struct rxe_bth *bth = (struct rxe_bth *)(pkt->hdr + pkt->offset); |
| 430 | |
| 431 | bth->opcode = opcode; |
| 432 | bth->flags = (pad << 4) & BTH_PAD_MASK; |
| 433 | if (se) |
| 434 | bth->flags |= BTH_SE_MASK; |
| 435 | if (mig) |
| 436 | bth->flags |= BTH_MIG_MASK; |
| 437 | bth->pkey = cpu_to_be16(pkey); |
| 438 | bth->qpn = cpu_to_be32(qpn & BTH_QPN_MASK); |
| 439 | psn &= BTH_PSN_MASK; |
| 440 | if (ack_req) |
| 441 | psn |= BTH_ACK_MASK; |
| 442 | bth->apsn = cpu_to_be32(psn); |
| 443 | } |
| 444 | |
| 445 | /****************************************************************************** |
| 446 | * Reliable Datagram Extended Transport Header |
| 447 | ******************************************************************************/ |
| 448 | struct rxe_rdeth { |
| 449 | __be32 een; |
| 450 | }; |
| 451 | |
| 452 | #define RDETH_EEN_MASK (0x00ffffff) |
| 453 | |
| 454 | static inline u8 __rdeth_een(void *arg) |
| 455 | { |
| 456 | struct rxe_rdeth *rdeth = arg; |
| 457 | |
| 458 | return RDETH_EEN_MASK & be32_to_cpu(rdeth->een); |
| 459 | } |
| 460 | |
| 461 | static inline void __rdeth_set_een(void *arg, u32 een) |
| 462 | { |
| 463 | struct rxe_rdeth *rdeth = arg; |
| 464 | |
| 465 | rdeth->een = cpu_to_be32(RDETH_EEN_MASK & een); |
| 466 | } |
| 467 | |
| 468 | static inline u8 rdeth_een(struct rxe_pkt_info *pkt) |
| 469 | { |
| 470 | return __rdeth_een(pkt->hdr + pkt->offset |
| 471 | + rxe_opcode[pkt->opcode].offset[RXE_RDETH]); |
| 472 | } |
| 473 | |
| 474 | static inline void rdeth_set_een(struct rxe_pkt_info *pkt, u32 een) |
| 475 | { |
| 476 | __rdeth_set_een(pkt->hdr + pkt->offset |
| 477 | + rxe_opcode[pkt->opcode].offset[RXE_RDETH], een); |
| 478 | } |
| 479 | |
| 480 | /****************************************************************************** |
| 481 | * Datagram Extended Transport Header |
| 482 | ******************************************************************************/ |
| 483 | struct rxe_deth { |
| 484 | __be32 qkey; |
| 485 | __be32 sqp; |
| 486 | }; |
| 487 | |
| 488 | #define GSI_QKEY (0x80010000) |
| 489 | #define DETH_SQP_MASK (0x00ffffff) |
| 490 | |
| 491 | static inline u32 __deth_qkey(void *arg) |
| 492 | { |
| 493 | struct rxe_deth *deth = arg; |
| 494 | |
| 495 | return be32_to_cpu(deth->qkey); |
| 496 | } |
| 497 | |
| 498 | static inline void __deth_set_qkey(void *arg, u32 qkey) |
| 499 | { |
| 500 | struct rxe_deth *deth = arg; |
| 501 | |
| 502 | deth->qkey = cpu_to_be32(qkey); |
| 503 | } |
| 504 | |
| 505 | static inline u32 __deth_sqp(void *arg) |
| 506 | { |
| 507 | struct rxe_deth *deth = arg; |
| 508 | |
| 509 | return DETH_SQP_MASK & be32_to_cpu(deth->sqp); |
| 510 | } |
| 511 | |
| 512 | static inline void __deth_set_sqp(void *arg, u32 sqp) |
| 513 | { |
| 514 | struct rxe_deth *deth = arg; |
| 515 | |
| 516 | deth->sqp = cpu_to_be32(DETH_SQP_MASK & sqp); |
| 517 | } |
| 518 | |
| 519 | static inline u32 deth_qkey(struct rxe_pkt_info *pkt) |
| 520 | { |
| 521 | return __deth_qkey(pkt->hdr + pkt->offset |
| 522 | + rxe_opcode[pkt->opcode].offset[RXE_DETH]); |
| 523 | } |
| 524 | |
| 525 | static inline void deth_set_qkey(struct rxe_pkt_info *pkt, u32 qkey) |
| 526 | { |
| 527 | __deth_set_qkey(pkt->hdr + pkt->offset |
| 528 | + rxe_opcode[pkt->opcode].offset[RXE_DETH], qkey); |
| 529 | } |
| 530 | |
| 531 | static inline u32 deth_sqp(struct rxe_pkt_info *pkt) |
| 532 | { |
| 533 | return __deth_sqp(pkt->hdr + pkt->offset |
| 534 | + rxe_opcode[pkt->opcode].offset[RXE_DETH]); |
| 535 | } |
| 536 | |
| 537 | static inline void deth_set_sqp(struct rxe_pkt_info *pkt, u32 sqp) |
| 538 | { |
| 539 | __deth_set_sqp(pkt->hdr + pkt->offset |
| 540 | + rxe_opcode[pkt->opcode].offset[RXE_DETH], sqp); |
| 541 | } |
| 542 | |
| 543 | /****************************************************************************** |
| 544 | * RDMA Extended Transport Header |
| 545 | ******************************************************************************/ |
| 546 | struct rxe_reth { |
| 547 | __be64 va; |
| 548 | __be32 rkey; |
| 549 | __be32 len; |
| 550 | }; |
| 551 | |
| 552 | static inline u64 __reth_va(void *arg) |
| 553 | { |
| 554 | struct rxe_reth *reth = arg; |
| 555 | |
| 556 | return be64_to_cpu(reth->va); |
| 557 | } |
| 558 | |
| 559 | static inline void __reth_set_va(void *arg, u64 va) |
| 560 | { |
| 561 | struct rxe_reth *reth = arg; |
| 562 | |
| 563 | reth->va = cpu_to_be64(va); |
| 564 | } |
| 565 | |
| 566 | static inline u32 __reth_rkey(void *arg) |
| 567 | { |
| 568 | struct rxe_reth *reth = arg; |
| 569 | |
| 570 | return be32_to_cpu(reth->rkey); |
| 571 | } |
| 572 | |
| 573 | static inline void __reth_set_rkey(void *arg, u32 rkey) |
| 574 | { |
| 575 | struct rxe_reth *reth = arg; |
| 576 | |
| 577 | reth->rkey = cpu_to_be32(rkey); |
| 578 | } |
| 579 | |
| 580 | static inline u32 __reth_len(void *arg) |
| 581 | { |
| 582 | struct rxe_reth *reth = arg; |
| 583 | |
| 584 | return be32_to_cpu(reth->len); |
| 585 | } |
| 586 | |
| 587 | static inline void __reth_set_len(void *arg, u32 len) |
| 588 | { |
| 589 | struct rxe_reth *reth = arg; |
| 590 | |
| 591 | reth->len = cpu_to_be32(len); |
| 592 | } |
| 593 | |
| 594 | static inline u64 reth_va(struct rxe_pkt_info *pkt) |
| 595 | { |
| 596 | return __reth_va(pkt->hdr + pkt->offset |
| 597 | + rxe_opcode[pkt->opcode].offset[RXE_RETH]); |
| 598 | } |
| 599 | |
| 600 | static inline void reth_set_va(struct rxe_pkt_info *pkt, u64 va) |
| 601 | { |
| 602 | __reth_set_va(pkt->hdr + pkt->offset |
| 603 | + rxe_opcode[pkt->opcode].offset[RXE_RETH], va); |
| 604 | } |
| 605 | |
| 606 | static inline u32 reth_rkey(struct rxe_pkt_info *pkt) |
| 607 | { |
| 608 | return __reth_rkey(pkt->hdr + pkt->offset |
| 609 | + rxe_opcode[pkt->opcode].offset[RXE_RETH]); |
| 610 | } |
| 611 | |
| 612 | static inline void reth_set_rkey(struct rxe_pkt_info *pkt, u32 rkey) |
| 613 | { |
| 614 | __reth_set_rkey(pkt->hdr + pkt->offset |
| 615 | + rxe_opcode[pkt->opcode].offset[RXE_RETH], rkey); |
| 616 | } |
| 617 | |
| 618 | static inline u32 reth_len(struct rxe_pkt_info *pkt) |
| 619 | { |
| 620 | return __reth_len(pkt->hdr + pkt->offset |
| 621 | + rxe_opcode[pkt->opcode].offset[RXE_RETH]); |
| 622 | } |
| 623 | |
| 624 | static inline void reth_set_len(struct rxe_pkt_info *pkt, u32 len) |
| 625 | { |
| 626 | __reth_set_len(pkt->hdr + pkt->offset |
| 627 | + rxe_opcode[pkt->opcode].offset[RXE_RETH], len); |
| 628 | } |
| 629 | |
| 630 | /****************************************************************************** |
| 631 | * Atomic Extended Transport Header |
| 632 | ******************************************************************************/ |
| 633 | struct rxe_atmeth { |
| 634 | __be64 va; |
| 635 | __be32 rkey; |
| 636 | __be64 swap_add; |
| 637 | __be64 comp; |
| 638 | } __attribute__((__packed__)); |
| 639 | |
| 640 | static inline u64 __atmeth_va(void *arg) |
| 641 | { |
| 642 | struct rxe_atmeth *atmeth = arg; |
| 643 | |
| 644 | return be64_to_cpu(atmeth->va); |
| 645 | } |
| 646 | |
| 647 | static inline void __atmeth_set_va(void *arg, u64 va) |
| 648 | { |
| 649 | struct rxe_atmeth *atmeth = arg; |
| 650 | |
| 651 | atmeth->va = cpu_to_be64(va); |
| 652 | } |
| 653 | |
| 654 | static inline u32 __atmeth_rkey(void *arg) |
| 655 | { |
| 656 | struct rxe_atmeth *atmeth = arg; |
| 657 | |
| 658 | return be32_to_cpu(atmeth->rkey); |
| 659 | } |
| 660 | |
| 661 | static inline void __atmeth_set_rkey(void *arg, u32 rkey) |
| 662 | { |
| 663 | struct rxe_atmeth *atmeth = arg; |
| 664 | |
| 665 | atmeth->rkey = cpu_to_be32(rkey); |
| 666 | } |
| 667 | |
| 668 | static inline u64 __atmeth_swap_add(void *arg) |
| 669 | { |
| 670 | struct rxe_atmeth *atmeth = arg; |
| 671 | |
| 672 | return be64_to_cpu(atmeth->swap_add); |
| 673 | } |
| 674 | |
| 675 | static inline void __atmeth_set_swap_add(void *arg, u64 swap_add) |
| 676 | { |
| 677 | struct rxe_atmeth *atmeth = arg; |
| 678 | |
| 679 | atmeth->swap_add = cpu_to_be64(swap_add); |
| 680 | } |
| 681 | |
| 682 | static inline u64 __atmeth_comp(void *arg) |
| 683 | { |
| 684 | struct rxe_atmeth *atmeth = arg; |
| 685 | |
| 686 | return be64_to_cpu(atmeth->comp); |
| 687 | } |
| 688 | |
| 689 | static inline void __atmeth_set_comp(void *arg, u64 comp) |
| 690 | { |
| 691 | struct rxe_atmeth *atmeth = arg; |
| 692 | |
| 693 | atmeth->comp = cpu_to_be64(comp); |
| 694 | } |
| 695 | |
| 696 | static inline u64 atmeth_va(struct rxe_pkt_info *pkt) |
| 697 | { |
| 698 | return __atmeth_va(pkt->hdr + pkt->offset |
| 699 | + rxe_opcode[pkt->opcode].offset[RXE_ATMETH]); |
| 700 | } |
| 701 | |
| 702 | static inline void atmeth_set_va(struct rxe_pkt_info *pkt, u64 va) |
| 703 | { |
| 704 | __atmeth_set_va(pkt->hdr + pkt->offset |
| 705 | + rxe_opcode[pkt->opcode].offset[RXE_ATMETH], va); |
| 706 | } |
| 707 | |
| 708 | static inline u32 atmeth_rkey(struct rxe_pkt_info *pkt) |
| 709 | { |
| 710 | return __atmeth_rkey(pkt->hdr + pkt->offset |
| 711 | + rxe_opcode[pkt->opcode].offset[RXE_ATMETH]); |
| 712 | } |
| 713 | |
| 714 | static inline void atmeth_set_rkey(struct rxe_pkt_info *pkt, u32 rkey) |
| 715 | { |
| 716 | __atmeth_set_rkey(pkt->hdr + pkt->offset |
| 717 | + rxe_opcode[pkt->opcode].offset[RXE_ATMETH], rkey); |
| 718 | } |
| 719 | |
| 720 | static inline u64 atmeth_swap_add(struct rxe_pkt_info *pkt) |
| 721 | { |
| 722 | return __atmeth_swap_add(pkt->hdr + pkt->offset |
| 723 | + rxe_opcode[pkt->opcode].offset[RXE_ATMETH]); |
| 724 | } |
| 725 | |
| 726 | static inline void atmeth_set_swap_add(struct rxe_pkt_info *pkt, u64 swap_add) |
| 727 | { |
| 728 | __atmeth_set_swap_add(pkt->hdr + pkt->offset |
| 729 | + rxe_opcode[pkt->opcode].offset[RXE_ATMETH], swap_add); |
| 730 | } |
| 731 | |
| 732 | static inline u64 atmeth_comp(struct rxe_pkt_info *pkt) |
| 733 | { |
| 734 | return __atmeth_comp(pkt->hdr + pkt->offset |
| 735 | + rxe_opcode[pkt->opcode].offset[RXE_ATMETH]); |
| 736 | } |
| 737 | |
| 738 | static inline void atmeth_set_comp(struct rxe_pkt_info *pkt, u64 comp) |
| 739 | { |
| 740 | __atmeth_set_comp(pkt->hdr + pkt->offset |
| 741 | + rxe_opcode[pkt->opcode].offset[RXE_ATMETH], comp); |
| 742 | } |
| 743 | |
| 744 | /****************************************************************************** |
| 745 | * Ack Extended Transport Header |
| 746 | ******************************************************************************/ |
| 747 | struct rxe_aeth { |
| 748 | __be32 smsn; |
| 749 | }; |
| 750 | |
| 751 | #define AETH_SYN_MASK (0xff000000) |
| 752 | #define AETH_MSN_MASK (0x00ffffff) |
| 753 | |
| 754 | enum aeth_syndrome { |
| 755 | AETH_TYPE_MASK = 0xe0, |
| 756 | AETH_ACK = 0x00, |
| 757 | AETH_RNR_NAK = 0x20, |
| 758 | AETH_RSVD = 0x40, |
| 759 | AETH_NAK = 0x60, |
| 760 | AETH_ACK_UNLIMITED = 0x1f, |
| 761 | AETH_NAK_PSN_SEQ_ERROR = 0x60, |
| 762 | AETH_NAK_INVALID_REQ = 0x61, |
| 763 | AETH_NAK_REM_ACC_ERR = 0x62, |
| 764 | AETH_NAK_REM_OP_ERR = 0x63, |
| 765 | AETH_NAK_INV_RD_REQ = 0x64, |
| 766 | }; |
| 767 | |
| 768 | static inline u8 __aeth_syn(void *arg) |
| 769 | { |
| 770 | struct rxe_aeth *aeth = arg; |
| 771 | |
| 772 | return (AETH_SYN_MASK & be32_to_cpu(aeth->smsn)) >> 24; |
| 773 | } |
| 774 | |
| 775 | static inline void __aeth_set_syn(void *arg, u8 syn) |
| 776 | { |
| 777 | struct rxe_aeth *aeth = arg; |
| 778 | u32 smsn = be32_to_cpu(aeth->smsn); |
| 779 | |
| 780 | aeth->smsn = cpu_to_be32((AETH_SYN_MASK & (syn << 24)) | |
| 781 | (~AETH_SYN_MASK & smsn)); |
| 782 | } |
| 783 | |
| 784 | static inline u32 __aeth_msn(void *arg) |
| 785 | { |
| 786 | struct rxe_aeth *aeth = arg; |
| 787 | |
| 788 | return AETH_MSN_MASK & be32_to_cpu(aeth->smsn); |
| 789 | } |
| 790 | |
| 791 | static inline void __aeth_set_msn(void *arg, u32 msn) |
| 792 | { |
| 793 | struct rxe_aeth *aeth = arg; |
| 794 | u32 smsn = be32_to_cpu(aeth->smsn); |
| 795 | |
| 796 | aeth->smsn = cpu_to_be32((AETH_MSN_MASK & msn) | |
| 797 | (~AETH_MSN_MASK & smsn)); |
| 798 | } |
| 799 | |
| 800 | static inline u8 aeth_syn(struct rxe_pkt_info *pkt) |
| 801 | { |
| 802 | return __aeth_syn(pkt->hdr + pkt->offset |
| 803 | + rxe_opcode[pkt->opcode].offset[RXE_AETH]); |
| 804 | } |
| 805 | |
| 806 | static inline void aeth_set_syn(struct rxe_pkt_info *pkt, u8 syn) |
| 807 | { |
| 808 | __aeth_set_syn(pkt->hdr + pkt->offset |
| 809 | + rxe_opcode[pkt->opcode].offset[RXE_AETH], syn); |
| 810 | } |
| 811 | |
| 812 | static inline u32 aeth_msn(struct rxe_pkt_info *pkt) |
| 813 | { |
| 814 | return __aeth_msn(pkt->hdr + pkt->offset |
| 815 | + rxe_opcode[pkt->opcode].offset[RXE_AETH]); |
| 816 | } |
| 817 | |
| 818 | static inline void aeth_set_msn(struct rxe_pkt_info *pkt, u32 msn) |
| 819 | { |
| 820 | __aeth_set_msn(pkt->hdr + pkt->offset |
| 821 | + rxe_opcode[pkt->opcode].offset[RXE_AETH], msn); |
| 822 | } |
| 823 | |
| 824 | /****************************************************************************** |
| 825 | * Atomic Ack Extended Transport Header |
| 826 | ******************************************************************************/ |
| 827 | struct rxe_atmack { |
| 828 | __be64 orig; |
| 829 | }; |
| 830 | |
| 831 | static inline u64 __atmack_orig(void *arg) |
| 832 | { |
| 833 | struct rxe_atmack *atmack = arg; |
| 834 | |
| 835 | return be64_to_cpu(atmack->orig); |
| 836 | } |
| 837 | |
| 838 | static inline void __atmack_set_orig(void *arg, u64 orig) |
| 839 | { |
| 840 | struct rxe_atmack *atmack = arg; |
| 841 | |
| 842 | atmack->orig = cpu_to_be64(orig); |
| 843 | } |
| 844 | |
| 845 | static inline u64 atmack_orig(struct rxe_pkt_info *pkt) |
| 846 | { |
| 847 | return __atmack_orig(pkt->hdr + pkt->offset |
| 848 | + rxe_opcode[pkt->opcode].offset[RXE_ATMACK]); |
| 849 | } |
| 850 | |
| 851 | static inline void atmack_set_orig(struct rxe_pkt_info *pkt, u64 orig) |
| 852 | { |
| 853 | __atmack_set_orig(pkt->hdr + pkt->offset |
| 854 | + rxe_opcode[pkt->opcode].offset[RXE_ATMACK], orig); |
| 855 | } |
| 856 | |
| 857 | /****************************************************************************** |
| 858 | * Immediate Extended Transport Header |
| 859 | ******************************************************************************/ |
| 860 | struct rxe_immdt { |
| 861 | __be32 imm; |
| 862 | }; |
| 863 | |
| 864 | static inline __be32 __immdt_imm(void *arg) |
| 865 | { |
| 866 | struct rxe_immdt *immdt = arg; |
| 867 | |
| 868 | return immdt->imm; |
| 869 | } |
| 870 | |
| 871 | static inline void __immdt_set_imm(void *arg, __be32 imm) |
| 872 | { |
| 873 | struct rxe_immdt *immdt = arg; |
| 874 | |
| 875 | immdt->imm = imm; |
| 876 | } |
| 877 | |
| 878 | static inline __be32 immdt_imm(struct rxe_pkt_info *pkt) |
| 879 | { |
| 880 | return __immdt_imm(pkt->hdr + pkt->offset |
| 881 | + rxe_opcode[pkt->opcode].offset[RXE_IMMDT]); |
| 882 | } |
| 883 | |
| 884 | static inline void immdt_set_imm(struct rxe_pkt_info *pkt, __be32 imm) |
| 885 | { |
| 886 | __immdt_set_imm(pkt->hdr + pkt->offset |
| 887 | + rxe_opcode[pkt->opcode].offset[RXE_IMMDT], imm); |
| 888 | } |
| 889 | |
| 890 | /****************************************************************************** |
| 891 | * Invalidate Extended Transport Header |
| 892 | ******************************************************************************/ |
| 893 | struct rxe_ieth { |
| 894 | __be32 rkey; |
| 895 | }; |
| 896 | |
| 897 | static inline u32 __ieth_rkey(void *arg) |
| 898 | { |
| 899 | struct rxe_ieth *ieth = arg; |
| 900 | |
| 901 | return be32_to_cpu(ieth->rkey); |
| 902 | } |
| 903 | |
| 904 | static inline void __ieth_set_rkey(void *arg, u32 rkey) |
| 905 | { |
| 906 | struct rxe_ieth *ieth = arg; |
| 907 | |
| 908 | ieth->rkey = cpu_to_be32(rkey); |
| 909 | } |
| 910 | |
| 911 | static inline u32 ieth_rkey(struct rxe_pkt_info *pkt) |
| 912 | { |
| 913 | return __ieth_rkey(pkt->hdr + pkt->offset |
| 914 | + rxe_opcode[pkt->opcode].offset[RXE_IETH]); |
| 915 | } |
| 916 | |
| 917 | static inline void ieth_set_rkey(struct rxe_pkt_info *pkt, u32 rkey) |
| 918 | { |
| 919 | __ieth_set_rkey(pkt->hdr + pkt->offset |
| 920 | + rxe_opcode[pkt->opcode].offset[RXE_IETH], rkey); |
| 921 | } |
| 922 | |
| 923 | enum rxe_hdr_length { |
| 924 | RXE_BTH_BYTES = sizeof(struct rxe_bth), |
| 925 | RXE_DETH_BYTES = sizeof(struct rxe_deth), |
| 926 | RXE_IMMDT_BYTES = sizeof(struct rxe_immdt), |
| 927 | RXE_RETH_BYTES = sizeof(struct rxe_reth), |
| 928 | RXE_AETH_BYTES = sizeof(struct rxe_aeth), |
| 929 | RXE_ATMACK_BYTES = sizeof(struct rxe_atmack), |
| 930 | RXE_ATMETH_BYTES = sizeof(struct rxe_atmeth), |
| 931 | RXE_IETH_BYTES = sizeof(struct rxe_ieth), |
| 932 | RXE_RDETH_BYTES = sizeof(struct rxe_rdeth), |
| 933 | }; |
| 934 | |
| 935 | static inline size_t header_size(struct rxe_pkt_info *pkt) |
| 936 | { |
| 937 | return pkt->offset + rxe_opcode[pkt->opcode].length; |
| 938 | } |
| 939 | |
| 940 | static inline void *payload_addr(struct rxe_pkt_info *pkt) |
| 941 | { |
| 942 | return pkt->hdr + pkt->offset |
| 943 | + rxe_opcode[pkt->opcode].offset[RXE_PAYLOAD]; |
| 944 | } |
| 945 | |
| 946 | static inline size_t payload_size(struct rxe_pkt_info *pkt) |
| 947 | { |
| 948 | return pkt->paylen - rxe_opcode[pkt->opcode].offset[RXE_PAYLOAD] |
| 949 | - bth_pad(pkt) - RXE_ICRC_SIZE; |
| 950 | } |
| 951 | |
| 952 | #endif /* RXE_HDR_H */ |