root/drivers/infiniband/sw/rxe/rxe_hdr.h

/* [<][>][^][v][top][bottom][index][help] */

INCLUDED FROM

DEFINITIONS

This source file includes following definitions.
  1. SKB_TO_PKT
  2. PKT_TO_SKB
  3. __bth_opcode
  4. __bth_set_opcode
  5. __bth_se
  6. __bth_set_se
  7. __bth_mig
  8. __bth_set_mig
  9. __bth_pad
  10. __bth_set_pad
  11. __bth_tver
  12. __bth_set_tver
  13. __bth_pkey
  14. __bth_set_pkey
  15. __bth_qpn
  16. __bth_set_qpn
  17. __bth_fecn
  18. __bth_set_fecn
  19. __bth_becn
  20. __bth_set_becn
  21. __bth_resv6a
  22. __bth_set_resv6a
  23. __bth_ack
  24. __bth_set_ack
  25. __bth_set_resv7
  26. __bth_psn
  27. __bth_set_psn
  28. bth_opcode
  29. bth_set_opcode
  30. bth_se
  31. bth_set_se
  32. bth_mig
  33. bth_set_mig
  34. bth_pad
  35. bth_set_pad
  36. bth_tver
  37. bth_set_tver
  38. bth_pkey
  39. bth_set_pkey
  40. bth_qpn
  41. bth_set_qpn
  42. bth_fecn
  43. bth_set_fecn
  44. bth_becn
  45. bth_set_becn
  46. bth_resv6a
  47. bth_set_resv6a
  48. bth_ack
  49. bth_set_ack
  50. bth_set_resv7
  51. bth_psn
  52. bth_set_psn
  53. bth_init
  54. __rdeth_een
  55. __rdeth_set_een
  56. rdeth_een
  57. rdeth_set_een
  58. __deth_qkey
  59. __deth_set_qkey
  60. __deth_sqp
  61. __deth_set_sqp
  62. deth_qkey
  63. deth_set_qkey
  64. deth_sqp
  65. deth_set_sqp
  66. __reth_va
  67. __reth_set_va
  68. __reth_rkey
  69. __reth_set_rkey
  70. __reth_len
  71. __reth_set_len
  72. reth_va
  73. reth_set_va
  74. reth_rkey
  75. reth_set_rkey
  76. reth_len
  77. reth_set_len
  78. __atmeth_va
  79. __atmeth_set_va
  80. __atmeth_rkey
  81. __atmeth_set_rkey
  82. __atmeth_swap_add
  83. __atmeth_set_swap_add
  84. __atmeth_comp
  85. __atmeth_set_comp
  86. atmeth_va
  87. atmeth_set_va
  88. atmeth_rkey
  89. atmeth_set_rkey
  90. atmeth_swap_add
  91. atmeth_set_swap_add
  92. atmeth_comp
  93. atmeth_set_comp
  94. __aeth_syn
  95. __aeth_set_syn
  96. __aeth_msn
  97. __aeth_set_msn
  98. aeth_syn
  99. aeth_set_syn
  100. aeth_msn
  101. aeth_set_msn
  102. __atmack_orig
  103. __atmack_set_orig
  104. atmack_orig
  105. atmack_set_orig
  106. __immdt_imm
  107. __immdt_set_imm
  108. immdt_imm
  109. immdt_set_imm
  110. __ieth_rkey
  111. __ieth_set_rkey
  112. ieth_rkey
  113. ieth_set_rkey
  114. header_size
  115. payload_addr
  116. payload_size
   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 static inline struct rxe_pkt_info *SKB_TO_PKT(struct sk_buff *skb)
  57 {
  58         BUILD_BUG_ON(sizeof(struct rxe_pkt_info) > sizeof(skb->cb));
  59         return (void *)skb->cb;
  60 }
  61 
  62 static inline struct sk_buff *PKT_TO_SKB(struct rxe_pkt_info *pkt)
  63 {
  64         return container_of((void *)pkt, struct sk_buff, cb);
  65 }
  66 
  67 /*
  68  * IBA header types and methods
  69  *
  70  * Some of these are for reference and completeness only since
  71  * rxe does not currently support RD transport
  72  * most of this could be moved into IB core. ib_pack.h has
  73  * part of this but is incomplete
  74  *
  75  * Header specific routines to insert/extract values to/from headers
  76  * the routines that are named __hhh_(set_)fff() take a pointer to a
  77  * hhh header and get(set) the fff field. The routines named
  78  * hhh_(set_)fff take a packet info struct and find the
  79  * header and field based on the opcode in the packet.
  80  * Conversion to/from network byte order from cpu order is also done.
  81  */
  82 
  83 #define RXE_ICRC_SIZE           (4)
  84 #define RXE_MAX_HDR_LENGTH      (80)
  85 
  86 /******************************************************************************
  87  * Base Transport Header
  88  ******************************************************************************/
  89 struct rxe_bth {
  90         u8                      opcode;
  91         u8                      flags;
  92         __be16                  pkey;
  93         __be32                  qpn;
  94         __be32                  apsn;
  95 };
  96 
  97 #define BTH_TVER                (0)
  98 #define BTH_DEF_PKEY            (0xffff)
  99 
 100 #define BTH_SE_MASK             (0x80)
 101 #define BTH_MIG_MASK            (0x40)
 102 #define BTH_PAD_MASK            (0x30)
 103 #define BTH_TVER_MASK           (0x0f)
 104 #define BTH_FECN_MASK           (0x80000000)
 105 #define BTH_BECN_MASK           (0x40000000)
 106 #define BTH_RESV6A_MASK         (0x3f000000)
 107 #define BTH_QPN_MASK            (0x00ffffff)
 108 #define BTH_ACK_MASK            (0x80000000)
 109 #define BTH_RESV7_MASK          (0x7f000000)
 110 #define BTH_PSN_MASK            (0x00ffffff)
 111 
 112 static inline u8 __bth_opcode(void *arg)
 113 {
 114         struct rxe_bth *bth = arg;
 115 
 116         return bth->opcode;
 117 }
 118 
 119 static inline void __bth_set_opcode(void *arg, u8 opcode)
 120 {
 121         struct rxe_bth *bth = arg;
 122 
 123         bth->opcode = opcode;
 124 }
 125 
 126 static inline u8 __bth_se(void *arg)
 127 {
 128         struct rxe_bth *bth = arg;
 129 
 130         return 0 != (BTH_SE_MASK & bth->flags);
 131 }
 132 
 133 static inline void __bth_set_se(void *arg, int se)
 134 {
 135         struct rxe_bth *bth = arg;
 136 
 137         if (se)
 138                 bth->flags |= BTH_SE_MASK;
 139         else
 140                 bth->flags &= ~BTH_SE_MASK;
 141 }
 142 
 143 static inline u8 __bth_mig(void *arg)
 144 {
 145         struct rxe_bth *bth = arg;
 146 
 147         return 0 != (BTH_MIG_MASK & bth->flags);
 148 }
 149 
 150 static inline void __bth_set_mig(void *arg, u8 mig)
 151 {
 152         struct rxe_bth *bth = arg;
 153 
 154         if (mig)
 155                 bth->flags |= BTH_MIG_MASK;
 156         else
 157                 bth->flags &= ~BTH_MIG_MASK;
 158 }
 159 
 160 static inline u8 __bth_pad(void *arg)
 161 {
 162         struct rxe_bth *bth = arg;
 163 
 164         return (BTH_PAD_MASK & bth->flags) >> 4;
 165 }
 166 
 167 static inline void __bth_set_pad(void *arg, u8 pad)
 168 {
 169         struct rxe_bth *bth = arg;
 170 
 171         bth->flags = (BTH_PAD_MASK & (pad << 4)) |
 172                         (~BTH_PAD_MASK & bth->flags);
 173 }
 174 
 175 static inline u8 __bth_tver(void *arg)
 176 {
 177         struct rxe_bth *bth = arg;
 178 
 179         return BTH_TVER_MASK & bth->flags;
 180 }
 181 
 182 static inline void __bth_set_tver(void *arg, u8 tver)
 183 {
 184         struct rxe_bth *bth = arg;
 185 
 186         bth->flags = (BTH_TVER_MASK & tver) |
 187                         (~BTH_TVER_MASK & bth->flags);
 188 }
 189 
 190 static inline u16 __bth_pkey(void *arg)
 191 {
 192         struct rxe_bth *bth = arg;
 193 
 194         return be16_to_cpu(bth->pkey);
 195 }
 196 
 197 static inline void __bth_set_pkey(void *arg, u16 pkey)
 198 {
 199         struct rxe_bth *bth = arg;
 200 
 201         bth->pkey = cpu_to_be16(pkey);
 202 }
 203 
 204 static inline u32 __bth_qpn(void *arg)
 205 {
 206         struct rxe_bth *bth = arg;
 207 
 208         return BTH_QPN_MASK & be32_to_cpu(bth->qpn);
 209 }
 210 
 211 static inline void __bth_set_qpn(void *arg, u32 qpn)
 212 {
 213         struct rxe_bth *bth = arg;
 214         u32 resvqpn = be32_to_cpu(bth->qpn);
 215 
 216         bth->qpn = cpu_to_be32((BTH_QPN_MASK & qpn) |
 217                                (~BTH_QPN_MASK & resvqpn));
 218 }
 219 
 220 static inline int __bth_fecn(void *arg)
 221 {
 222         struct rxe_bth *bth = arg;
 223 
 224         return 0 != (cpu_to_be32(BTH_FECN_MASK) & bth->qpn);
 225 }
 226 
 227 static inline void __bth_set_fecn(void *arg, int fecn)
 228 {
 229         struct rxe_bth *bth = arg;
 230 
 231         if (fecn)
 232                 bth->qpn |= cpu_to_be32(BTH_FECN_MASK);
 233         else
 234                 bth->qpn &= ~cpu_to_be32(BTH_FECN_MASK);
 235 }
 236 
 237 static inline int __bth_becn(void *arg)
 238 {
 239         struct rxe_bth *bth = arg;
 240 
 241         return 0 != (cpu_to_be32(BTH_BECN_MASK) & bth->qpn);
 242 }
 243 
 244 static inline void __bth_set_becn(void *arg, int becn)
 245 {
 246         struct rxe_bth *bth = arg;
 247 
 248         if (becn)
 249                 bth->qpn |= cpu_to_be32(BTH_BECN_MASK);
 250         else
 251                 bth->qpn &= ~cpu_to_be32(BTH_BECN_MASK);
 252 }
 253 
 254 static inline u8 __bth_resv6a(void *arg)
 255 {
 256         struct rxe_bth *bth = arg;
 257 
 258         return (BTH_RESV6A_MASK & be32_to_cpu(bth->qpn)) >> 24;
 259 }
 260 
 261 static inline void __bth_set_resv6a(void *arg)
 262 {
 263         struct rxe_bth *bth = arg;
 264 
 265         bth->qpn = cpu_to_be32(~BTH_RESV6A_MASK);
 266 }
 267 
 268 static inline int __bth_ack(void *arg)
 269 {
 270         struct rxe_bth *bth = arg;
 271 
 272         return 0 != (cpu_to_be32(BTH_ACK_MASK) & bth->apsn);
 273 }
 274 
 275 static inline void __bth_set_ack(void *arg, int ack)
 276 {
 277         struct rxe_bth *bth = arg;
 278 
 279         if (ack)
 280                 bth->apsn |= cpu_to_be32(BTH_ACK_MASK);
 281         else
 282                 bth->apsn &= ~cpu_to_be32(BTH_ACK_MASK);
 283 }
 284 
 285 static inline void __bth_set_resv7(void *arg)
 286 {
 287         struct rxe_bth *bth = arg;
 288 
 289         bth->apsn &= ~cpu_to_be32(BTH_RESV7_MASK);
 290 }
 291 
 292 static inline u32 __bth_psn(void *arg)
 293 {
 294         struct rxe_bth *bth = arg;
 295 
 296         return BTH_PSN_MASK & be32_to_cpu(bth->apsn);
 297 }
 298 
 299 static inline void __bth_set_psn(void *arg, u32 psn)
 300 {
 301         struct rxe_bth *bth = arg;
 302         u32 apsn = be32_to_cpu(bth->apsn);
 303 
 304         bth->apsn = cpu_to_be32((BTH_PSN_MASK & psn) |
 305                         (~BTH_PSN_MASK & apsn));
 306 }
 307 
 308 static inline u8 bth_opcode(struct rxe_pkt_info *pkt)
 309 {
 310         return __bth_opcode(pkt->hdr + pkt->offset);
 311 }
 312 
 313 static inline void bth_set_opcode(struct rxe_pkt_info *pkt, u8 opcode)
 314 {
 315         __bth_set_opcode(pkt->hdr + pkt->offset, opcode);
 316 }
 317 
 318 static inline u8 bth_se(struct rxe_pkt_info *pkt)
 319 {
 320         return __bth_se(pkt->hdr + pkt->offset);
 321 }
 322 
 323 static inline void bth_set_se(struct rxe_pkt_info *pkt, int se)
 324 {
 325         __bth_set_se(pkt->hdr + pkt->offset, se);
 326 }
 327 
 328 static inline u8 bth_mig(struct rxe_pkt_info *pkt)
 329 {
 330         return __bth_mig(pkt->hdr + pkt->offset);
 331 }
 332 
 333 static inline void bth_set_mig(struct rxe_pkt_info *pkt, u8 mig)
 334 {
 335         __bth_set_mig(pkt->hdr + pkt->offset, mig);
 336 }
 337 
 338 static inline u8 bth_pad(struct rxe_pkt_info *pkt)
 339 {
 340         return __bth_pad(pkt->hdr + pkt->offset);
 341 }
 342 
 343 static inline void bth_set_pad(struct rxe_pkt_info *pkt, u8 pad)
 344 {
 345         __bth_set_pad(pkt->hdr + pkt->offset, pad);
 346 }
 347 
 348 static inline u8 bth_tver(struct rxe_pkt_info *pkt)
 349 {
 350         return __bth_tver(pkt->hdr + pkt->offset);
 351 }
 352 
 353 static inline void bth_set_tver(struct rxe_pkt_info *pkt, u8 tver)
 354 {
 355         __bth_set_tver(pkt->hdr + pkt->offset, tver);
 356 }
 357 
 358 static inline u16 bth_pkey(struct rxe_pkt_info *pkt)
 359 {
 360         return __bth_pkey(pkt->hdr + pkt->offset);
 361 }
 362 
 363 static inline void bth_set_pkey(struct rxe_pkt_info *pkt, u16 pkey)
 364 {
 365         __bth_set_pkey(pkt->hdr + pkt->offset, pkey);
 366 }
 367 
 368 static inline u32 bth_qpn(struct rxe_pkt_info *pkt)
 369 {
 370         return __bth_qpn(pkt->hdr + pkt->offset);
 371 }
 372 
 373 static inline void bth_set_qpn(struct rxe_pkt_info *pkt, u32 qpn)
 374 {
 375         __bth_set_qpn(pkt->hdr + pkt->offset, qpn);
 376 }
 377 
 378 static inline int bth_fecn(struct rxe_pkt_info *pkt)
 379 {
 380         return __bth_fecn(pkt->hdr + pkt->offset);
 381 }
 382 
 383 static inline void bth_set_fecn(struct rxe_pkt_info *pkt, int fecn)
 384 {
 385         __bth_set_fecn(pkt->hdr + pkt->offset, fecn);
 386 }
 387 
 388 static inline int bth_becn(struct rxe_pkt_info *pkt)
 389 {
 390         return __bth_becn(pkt->hdr + pkt->offset);
 391 }
 392 
 393 static inline void bth_set_becn(struct rxe_pkt_info *pkt, int becn)
 394 {
 395         __bth_set_becn(pkt->hdr + pkt->offset, becn);
 396 }
 397 
 398 static inline u8 bth_resv6a(struct rxe_pkt_info *pkt)
 399 {
 400         return __bth_resv6a(pkt->hdr + pkt->offset);
 401 }
 402 
 403 static inline void bth_set_resv6a(struct rxe_pkt_info *pkt)
 404 {
 405         __bth_set_resv6a(pkt->hdr + pkt->offset);
 406 }
 407 
 408 static inline int bth_ack(struct rxe_pkt_info *pkt)
 409 {
 410         return __bth_ack(pkt->hdr + pkt->offset);
 411 }
 412 
 413 static inline void bth_set_ack(struct rxe_pkt_info *pkt, int ack)
 414 {
 415         __bth_set_ack(pkt->hdr + pkt->offset, ack);
 416 }
 417 
 418 static inline void bth_set_resv7(struct rxe_pkt_info *pkt)
 419 {
 420         __bth_set_resv7(pkt->hdr + pkt->offset);
 421 }
 422 
 423 static inline u32 bth_psn(struct rxe_pkt_info *pkt)
 424 {
 425         return __bth_psn(pkt->hdr + pkt->offset);
 426 }
 427 
 428 static inline void bth_set_psn(struct rxe_pkt_info *pkt, u32 psn)
 429 {
 430         __bth_set_psn(pkt->hdr + pkt->offset, psn);
 431 }
 432 
 433 static inline void bth_init(struct rxe_pkt_info *pkt, u8 opcode, int se,
 434                             int mig, int pad, u16 pkey, u32 qpn, int ack_req,
 435                             u32 psn)
 436 {
 437         struct rxe_bth *bth = (struct rxe_bth *)(pkt->hdr + pkt->offset);
 438 
 439         bth->opcode = opcode;
 440         bth->flags = (pad << 4) & BTH_PAD_MASK;
 441         if (se)
 442                 bth->flags |= BTH_SE_MASK;
 443         if (mig)
 444                 bth->flags |= BTH_MIG_MASK;
 445         bth->pkey = cpu_to_be16(pkey);
 446         bth->qpn = cpu_to_be32(qpn & BTH_QPN_MASK);
 447         psn &= BTH_PSN_MASK;
 448         if (ack_req)
 449                 psn |= BTH_ACK_MASK;
 450         bth->apsn = cpu_to_be32(psn);
 451 }
 452 
 453 /******************************************************************************
 454  * Reliable Datagram Extended Transport Header
 455  ******************************************************************************/
 456 struct rxe_rdeth {
 457         __be32                  een;
 458 };
 459 
 460 #define RDETH_EEN_MASK          (0x00ffffff)
 461 
 462 static inline u8 __rdeth_een(void *arg)
 463 {
 464         struct rxe_rdeth *rdeth = arg;
 465 
 466         return RDETH_EEN_MASK & be32_to_cpu(rdeth->een);
 467 }
 468 
 469 static inline void __rdeth_set_een(void *arg, u32 een)
 470 {
 471         struct rxe_rdeth *rdeth = arg;
 472 
 473         rdeth->een = cpu_to_be32(RDETH_EEN_MASK & een);
 474 }
 475 
 476 static inline u8 rdeth_een(struct rxe_pkt_info *pkt)
 477 {
 478         return __rdeth_een(pkt->hdr + pkt->offset
 479                 + rxe_opcode[pkt->opcode].offset[RXE_RDETH]);
 480 }
 481 
 482 static inline void rdeth_set_een(struct rxe_pkt_info *pkt, u32 een)
 483 {
 484         __rdeth_set_een(pkt->hdr + pkt->offset
 485                 + rxe_opcode[pkt->opcode].offset[RXE_RDETH], een);
 486 }
 487 
 488 /******************************************************************************
 489  * Datagram Extended Transport Header
 490  ******************************************************************************/
 491 struct rxe_deth {
 492         __be32                  qkey;
 493         __be32                  sqp;
 494 };
 495 
 496 #define GSI_QKEY                (0x80010000)
 497 #define DETH_SQP_MASK           (0x00ffffff)
 498 
 499 static inline u32 __deth_qkey(void *arg)
 500 {
 501         struct rxe_deth *deth = arg;
 502 
 503         return be32_to_cpu(deth->qkey);
 504 }
 505 
 506 static inline void __deth_set_qkey(void *arg, u32 qkey)
 507 {
 508         struct rxe_deth *deth = arg;
 509 
 510         deth->qkey = cpu_to_be32(qkey);
 511 }
 512 
 513 static inline u32 __deth_sqp(void *arg)
 514 {
 515         struct rxe_deth *deth = arg;
 516 
 517         return DETH_SQP_MASK & be32_to_cpu(deth->sqp);
 518 }
 519 
 520 static inline void __deth_set_sqp(void *arg, u32 sqp)
 521 {
 522         struct rxe_deth *deth = arg;
 523 
 524         deth->sqp = cpu_to_be32(DETH_SQP_MASK & sqp);
 525 }
 526 
 527 static inline u32 deth_qkey(struct rxe_pkt_info *pkt)
 528 {
 529         return __deth_qkey(pkt->hdr + pkt->offset
 530                 + rxe_opcode[pkt->opcode].offset[RXE_DETH]);
 531 }
 532 
 533 static inline void deth_set_qkey(struct rxe_pkt_info *pkt, u32 qkey)
 534 {
 535         __deth_set_qkey(pkt->hdr + pkt->offset
 536                 + rxe_opcode[pkt->opcode].offset[RXE_DETH], qkey);
 537 }
 538 
 539 static inline u32 deth_sqp(struct rxe_pkt_info *pkt)
 540 {
 541         return __deth_sqp(pkt->hdr + pkt->offset
 542                 + rxe_opcode[pkt->opcode].offset[RXE_DETH]);
 543 }
 544 
 545 static inline void deth_set_sqp(struct rxe_pkt_info *pkt, u32 sqp)
 546 {
 547         __deth_set_sqp(pkt->hdr + pkt->offset
 548                 + rxe_opcode[pkt->opcode].offset[RXE_DETH], sqp);
 549 }
 550 
 551 /******************************************************************************
 552  * RDMA Extended Transport Header
 553  ******************************************************************************/
 554 struct rxe_reth {
 555         __be64                  va;
 556         __be32                  rkey;
 557         __be32                  len;
 558 };
 559 
 560 static inline u64 __reth_va(void *arg)
 561 {
 562         struct rxe_reth *reth = arg;
 563 
 564         return be64_to_cpu(reth->va);
 565 }
 566 
 567 static inline void __reth_set_va(void *arg, u64 va)
 568 {
 569         struct rxe_reth *reth = arg;
 570 
 571         reth->va = cpu_to_be64(va);
 572 }
 573 
 574 static inline u32 __reth_rkey(void *arg)
 575 {
 576         struct rxe_reth *reth = arg;
 577 
 578         return be32_to_cpu(reth->rkey);
 579 }
 580 
 581 static inline void __reth_set_rkey(void *arg, u32 rkey)
 582 {
 583         struct rxe_reth *reth = arg;
 584 
 585         reth->rkey = cpu_to_be32(rkey);
 586 }
 587 
 588 static inline u32 __reth_len(void *arg)
 589 {
 590         struct rxe_reth *reth = arg;
 591 
 592         return be32_to_cpu(reth->len);
 593 }
 594 
 595 static inline void __reth_set_len(void *arg, u32 len)
 596 {
 597         struct rxe_reth *reth = arg;
 598 
 599         reth->len = cpu_to_be32(len);
 600 }
 601 
 602 static inline u64 reth_va(struct rxe_pkt_info *pkt)
 603 {
 604         return __reth_va(pkt->hdr + pkt->offset
 605                 + rxe_opcode[pkt->opcode].offset[RXE_RETH]);
 606 }
 607 
 608 static inline void reth_set_va(struct rxe_pkt_info *pkt, u64 va)
 609 {
 610         __reth_set_va(pkt->hdr + pkt->offset
 611                 + rxe_opcode[pkt->opcode].offset[RXE_RETH], va);
 612 }
 613 
 614 static inline u32 reth_rkey(struct rxe_pkt_info *pkt)
 615 {
 616         return __reth_rkey(pkt->hdr + pkt->offset
 617                 + rxe_opcode[pkt->opcode].offset[RXE_RETH]);
 618 }
 619 
 620 static inline void reth_set_rkey(struct rxe_pkt_info *pkt, u32 rkey)
 621 {
 622         __reth_set_rkey(pkt->hdr + pkt->offset
 623                 + rxe_opcode[pkt->opcode].offset[RXE_RETH], rkey);
 624 }
 625 
 626 static inline u32 reth_len(struct rxe_pkt_info *pkt)
 627 {
 628         return __reth_len(pkt->hdr + pkt->offset
 629                 + rxe_opcode[pkt->opcode].offset[RXE_RETH]);
 630 }
 631 
 632 static inline void reth_set_len(struct rxe_pkt_info *pkt, u32 len)
 633 {
 634         __reth_set_len(pkt->hdr + pkt->offset
 635                 + rxe_opcode[pkt->opcode].offset[RXE_RETH], len);
 636 }
 637 
 638 /******************************************************************************
 639  * Atomic Extended Transport Header
 640  ******************************************************************************/
 641 struct rxe_atmeth {
 642         __be64                  va;
 643         __be32                  rkey;
 644         __be64                  swap_add;
 645         __be64                  comp;
 646 } __packed;
 647 
 648 static inline u64 __atmeth_va(void *arg)
 649 {
 650         struct rxe_atmeth *atmeth = arg;
 651 
 652         return be64_to_cpu(atmeth->va);
 653 }
 654 
 655 static inline void __atmeth_set_va(void *arg, u64 va)
 656 {
 657         struct rxe_atmeth *atmeth = arg;
 658 
 659         atmeth->va = cpu_to_be64(va);
 660 }
 661 
 662 static inline u32 __atmeth_rkey(void *arg)
 663 {
 664         struct rxe_atmeth *atmeth = arg;
 665 
 666         return be32_to_cpu(atmeth->rkey);
 667 }
 668 
 669 static inline void __atmeth_set_rkey(void *arg, u32 rkey)
 670 {
 671         struct rxe_atmeth *atmeth = arg;
 672 
 673         atmeth->rkey = cpu_to_be32(rkey);
 674 }
 675 
 676 static inline u64 __atmeth_swap_add(void *arg)
 677 {
 678         struct rxe_atmeth *atmeth = arg;
 679 
 680         return be64_to_cpu(atmeth->swap_add);
 681 }
 682 
 683 static inline void __atmeth_set_swap_add(void *arg, u64 swap_add)
 684 {
 685         struct rxe_atmeth *atmeth = arg;
 686 
 687         atmeth->swap_add = cpu_to_be64(swap_add);
 688 }
 689 
 690 static inline u64 __atmeth_comp(void *arg)
 691 {
 692         struct rxe_atmeth *atmeth = arg;
 693 
 694         return be64_to_cpu(atmeth->comp);
 695 }
 696 
 697 static inline void __atmeth_set_comp(void *arg, u64 comp)
 698 {
 699         struct rxe_atmeth *atmeth = arg;
 700 
 701         atmeth->comp = cpu_to_be64(comp);
 702 }
 703 
 704 static inline u64 atmeth_va(struct rxe_pkt_info *pkt)
 705 {
 706         return __atmeth_va(pkt->hdr + pkt->offset
 707                 + rxe_opcode[pkt->opcode].offset[RXE_ATMETH]);
 708 }
 709 
 710 static inline void atmeth_set_va(struct rxe_pkt_info *pkt, u64 va)
 711 {
 712         __atmeth_set_va(pkt->hdr + pkt->offset
 713                 + rxe_opcode[pkt->opcode].offset[RXE_ATMETH], va);
 714 }
 715 
 716 static inline u32 atmeth_rkey(struct rxe_pkt_info *pkt)
 717 {
 718         return __atmeth_rkey(pkt->hdr + pkt->offset
 719                 + rxe_opcode[pkt->opcode].offset[RXE_ATMETH]);
 720 }
 721 
 722 static inline void atmeth_set_rkey(struct rxe_pkt_info *pkt, u32 rkey)
 723 {
 724         __atmeth_set_rkey(pkt->hdr + pkt->offset
 725                 + rxe_opcode[pkt->opcode].offset[RXE_ATMETH], rkey);
 726 }
 727 
 728 static inline u64 atmeth_swap_add(struct rxe_pkt_info *pkt)
 729 {
 730         return __atmeth_swap_add(pkt->hdr + pkt->offset
 731                 + rxe_opcode[pkt->opcode].offset[RXE_ATMETH]);
 732 }
 733 
 734 static inline void atmeth_set_swap_add(struct rxe_pkt_info *pkt, u64 swap_add)
 735 {
 736         __atmeth_set_swap_add(pkt->hdr + pkt->offset
 737                 + rxe_opcode[pkt->opcode].offset[RXE_ATMETH], swap_add);
 738 }
 739 
 740 static inline u64 atmeth_comp(struct rxe_pkt_info *pkt)
 741 {
 742         return __atmeth_comp(pkt->hdr + pkt->offset
 743                 + rxe_opcode[pkt->opcode].offset[RXE_ATMETH]);
 744 }
 745 
 746 static inline void atmeth_set_comp(struct rxe_pkt_info *pkt, u64 comp)
 747 {
 748         __atmeth_set_comp(pkt->hdr + pkt->offset
 749                 + rxe_opcode[pkt->opcode].offset[RXE_ATMETH], comp);
 750 }
 751 
 752 /******************************************************************************
 753  * Ack Extended Transport Header
 754  ******************************************************************************/
 755 struct rxe_aeth {
 756         __be32                  smsn;
 757 };
 758 
 759 #define AETH_SYN_MASK           (0xff000000)
 760 #define AETH_MSN_MASK           (0x00ffffff)
 761 
 762 enum aeth_syndrome {
 763         AETH_TYPE_MASK          = 0xe0,
 764         AETH_ACK                = 0x00,
 765         AETH_RNR_NAK            = 0x20,
 766         AETH_RSVD               = 0x40,
 767         AETH_NAK                = 0x60,
 768         AETH_ACK_UNLIMITED      = 0x1f,
 769         AETH_NAK_PSN_SEQ_ERROR  = 0x60,
 770         AETH_NAK_INVALID_REQ    = 0x61,
 771         AETH_NAK_REM_ACC_ERR    = 0x62,
 772         AETH_NAK_REM_OP_ERR     = 0x63,
 773         AETH_NAK_INV_RD_REQ     = 0x64,
 774 };
 775 
 776 static inline u8 __aeth_syn(void *arg)
 777 {
 778         struct rxe_aeth *aeth = arg;
 779 
 780         return (AETH_SYN_MASK & be32_to_cpu(aeth->smsn)) >> 24;
 781 }
 782 
 783 static inline void __aeth_set_syn(void *arg, u8 syn)
 784 {
 785         struct rxe_aeth *aeth = arg;
 786         u32 smsn = be32_to_cpu(aeth->smsn);
 787 
 788         aeth->smsn = cpu_to_be32((AETH_SYN_MASK & (syn << 24)) |
 789                          (~AETH_SYN_MASK & smsn));
 790 }
 791 
 792 static inline u32 __aeth_msn(void *arg)
 793 {
 794         struct rxe_aeth *aeth = arg;
 795 
 796         return AETH_MSN_MASK & be32_to_cpu(aeth->smsn);
 797 }
 798 
 799 static inline void __aeth_set_msn(void *arg, u32 msn)
 800 {
 801         struct rxe_aeth *aeth = arg;
 802         u32 smsn = be32_to_cpu(aeth->smsn);
 803 
 804         aeth->smsn = cpu_to_be32((AETH_MSN_MASK & msn) |
 805                          (~AETH_MSN_MASK & smsn));
 806 }
 807 
 808 static inline u8 aeth_syn(struct rxe_pkt_info *pkt)
 809 {
 810         return __aeth_syn(pkt->hdr + pkt->offset
 811                 + rxe_opcode[pkt->opcode].offset[RXE_AETH]);
 812 }
 813 
 814 static inline void aeth_set_syn(struct rxe_pkt_info *pkt, u8 syn)
 815 {
 816         __aeth_set_syn(pkt->hdr + pkt->offset
 817                 + rxe_opcode[pkt->opcode].offset[RXE_AETH], syn);
 818 }
 819 
 820 static inline u32 aeth_msn(struct rxe_pkt_info *pkt)
 821 {
 822         return __aeth_msn(pkt->hdr + pkt->offset
 823                 + rxe_opcode[pkt->opcode].offset[RXE_AETH]);
 824 }
 825 
 826 static inline void aeth_set_msn(struct rxe_pkt_info *pkt, u32 msn)
 827 {
 828         __aeth_set_msn(pkt->hdr + pkt->offset
 829                 + rxe_opcode[pkt->opcode].offset[RXE_AETH], msn);
 830 }
 831 
 832 /******************************************************************************
 833  * Atomic Ack Extended Transport Header
 834  ******************************************************************************/
 835 struct rxe_atmack {
 836         __be64                  orig;
 837 };
 838 
 839 static inline u64 __atmack_orig(void *arg)
 840 {
 841         struct rxe_atmack *atmack = arg;
 842 
 843         return be64_to_cpu(atmack->orig);
 844 }
 845 
 846 static inline void __atmack_set_orig(void *arg, u64 orig)
 847 {
 848         struct rxe_atmack *atmack = arg;
 849 
 850         atmack->orig = cpu_to_be64(orig);
 851 }
 852 
 853 static inline u64 atmack_orig(struct rxe_pkt_info *pkt)
 854 {
 855         return __atmack_orig(pkt->hdr + pkt->offset
 856                 + rxe_opcode[pkt->opcode].offset[RXE_ATMACK]);
 857 }
 858 
 859 static inline void atmack_set_orig(struct rxe_pkt_info *pkt, u64 orig)
 860 {
 861         __atmack_set_orig(pkt->hdr + pkt->offset
 862                 + rxe_opcode[pkt->opcode].offset[RXE_ATMACK], orig);
 863 }
 864 
 865 /******************************************************************************
 866  * Immediate Extended Transport Header
 867  ******************************************************************************/
 868 struct rxe_immdt {
 869         __be32                  imm;
 870 };
 871 
 872 static inline __be32 __immdt_imm(void *arg)
 873 {
 874         struct rxe_immdt *immdt = arg;
 875 
 876         return immdt->imm;
 877 }
 878 
 879 static inline void __immdt_set_imm(void *arg, __be32 imm)
 880 {
 881         struct rxe_immdt *immdt = arg;
 882 
 883         immdt->imm = imm;
 884 }
 885 
 886 static inline __be32 immdt_imm(struct rxe_pkt_info *pkt)
 887 {
 888         return __immdt_imm(pkt->hdr + pkt->offset
 889                 + rxe_opcode[pkt->opcode].offset[RXE_IMMDT]);
 890 }
 891 
 892 static inline void immdt_set_imm(struct rxe_pkt_info *pkt, __be32 imm)
 893 {
 894         __immdt_set_imm(pkt->hdr + pkt->offset
 895                 + rxe_opcode[pkt->opcode].offset[RXE_IMMDT], imm);
 896 }
 897 
 898 /******************************************************************************
 899  * Invalidate Extended Transport Header
 900  ******************************************************************************/
 901 struct rxe_ieth {
 902         __be32                  rkey;
 903 };
 904 
 905 static inline u32 __ieth_rkey(void *arg)
 906 {
 907         struct rxe_ieth *ieth = arg;
 908 
 909         return be32_to_cpu(ieth->rkey);
 910 }
 911 
 912 static inline void __ieth_set_rkey(void *arg, u32 rkey)
 913 {
 914         struct rxe_ieth *ieth = arg;
 915 
 916         ieth->rkey = cpu_to_be32(rkey);
 917 }
 918 
 919 static inline u32 ieth_rkey(struct rxe_pkt_info *pkt)
 920 {
 921         return __ieth_rkey(pkt->hdr + pkt->offset
 922                 + rxe_opcode[pkt->opcode].offset[RXE_IETH]);
 923 }
 924 
 925 static inline void ieth_set_rkey(struct rxe_pkt_info *pkt, u32 rkey)
 926 {
 927         __ieth_set_rkey(pkt->hdr + pkt->offset
 928                 + rxe_opcode[pkt->opcode].offset[RXE_IETH], rkey);
 929 }
 930 
 931 enum rxe_hdr_length {
 932         RXE_BTH_BYTES           = sizeof(struct rxe_bth),
 933         RXE_DETH_BYTES          = sizeof(struct rxe_deth),
 934         RXE_IMMDT_BYTES         = sizeof(struct rxe_immdt),
 935         RXE_RETH_BYTES          = sizeof(struct rxe_reth),
 936         RXE_AETH_BYTES          = sizeof(struct rxe_aeth),
 937         RXE_ATMACK_BYTES        = sizeof(struct rxe_atmack),
 938         RXE_ATMETH_BYTES        = sizeof(struct rxe_atmeth),
 939         RXE_IETH_BYTES          = sizeof(struct rxe_ieth),
 940         RXE_RDETH_BYTES         = sizeof(struct rxe_rdeth),
 941 };
 942 
 943 static inline size_t header_size(struct rxe_pkt_info *pkt)
 944 {
 945         return pkt->offset + rxe_opcode[pkt->opcode].length;
 946 }
 947 
 948 static inline void *payload_addr(struct rxe_pkt_info *pkt)
 949 {
 950         return pkt->hdr + pkt->offset
 951                 + rxe_opcode[pkt->opcode].offset[RXE_PAYLOAD];
 952 }
 953 
 954 static inline size_t payload_size(struct rxe_pkt_info *pkt)
 955 {
 956         return pkt->paylen - rxe_opcode[pkt->opcode].offset[RXE_PAYLOAD]
 957                 - bth_pad(pkt) - RXE_ICRC_SIZE;
 958 }
 959 
 960 #endif /* RXE_HDR_H */
/* [<][>][^][v][top][bottom][index][help] */