src/plugins/crypto_sw_scheduler/main.c

   1 /*
   2  * Copyright (c) 2020 Intel and/or its affiliates.
   3  * Licensed under the Apache License, Version 2.0 (the "License");
   4  * you may not use this file except in compliance with the License.
   5  * You may obtain a copy of the License at:
   6  *
   7  *     http://www.apache.org/licenses/LICENSE-2.0
   8  *
   9  * Unless required by applicable law or agreed to in writing, software
  10  * distributed under the License is distributed on an "AS IS" BASIS,
  11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12  * See the License for the specific language governing permissions and
  13  * limitations under the License.
  14  */
  15
  16 #include <vlib/vlib.h>
  17 #include <vnet/plugin/plugin.h>
  18 #include <vpp/app/version.h>
  19
  20 #include "crypto_sw_scheduler.h"
  21
  22 int
  23 crypto_sw_scheduler_set_worker_crypto (u32 worker_idx, u8 enabled)
  24 {
  25   crypto_sw_scheduler_main_t *cm = &crypto_sw_scheduler_main;
  26   vlib_thread_main_t *tm = vlib_get_thread_main ();
  27   crypto_sw_scheduler_per_thread_data_t *ptd = 0;
  28   u32 count = 0, i = vlib_num_workers () > 0;
  29
  30   if (worker_idx >= vlib_num_workers ())
  31     {
  32       return VNET_API_ERROR_INVALID_VALUE;
  33     }
  34
  35   for (; i < tm->n_vlib_mains; i++)
  36     {
  37       ptd = cm->per_thread_data + i;
  38       count += ptd->self_crypto_enabled;
  39     }
  40
  41   if (enabled || count > 1)
  42     {
  43       cm->per_thread_data[vlib_get_worker_thread_index
  44                           (worker_idx)].self_crypto_enabled = enabled;
  45     }
  46   else                          /* cannot disable all crypto workers */
  47     {
  48       return VNET_API_ERROR_INVALID_VALUE_2;
  49     }
  50   return 0;
  51 }
  52
  53 static void
  54 crypto_sw_scheduler_key_handler (vlib_main_t * vm, vnet_crypto_key_op_t kop,
  55                                  vnet_crypto_key_index_t idx)
  56 {
  57   crypto_sw_scheduler_main_t *cm = &crypto_sw_scheduler_main;
  58   vnet_crypto_key_t *key = vnet_crypto_get_key (idx);
  59
  60   vec_validate (cm->keys, idx);
  61
  62   if (key->type == VNET_CRYPTO_KEY_TYPE_LINK)
  63     {
  64       if (kop == VNET_CRYPTO_KEY_OP_DEL)
  65         {
  66           cm->keys[idx].index_crypto = UINT32_MAX;
  67           cm->keys[idx].index_integ = UINT32_MAX;
  68         }
  69       else
  70         {
  71           cm->keys[idx] = *key;
  72         }
  73     }
  74 }
  75
  76 static int
  77 crypto_sw_scheduler_frame_enqueue (vlib_main_t * vm,
  78                                    vnet_crypto_async_frame_t * frame)
  79 {
  80   crypto_sw_scheduler_main_t *cm = &crypto_sw_scheduler_main;
  81   crypto_sw_scheduler_per_thread_data_t *ptd
  82     = vec_elt_at_index (cm->per_thread_data, vm->thread_index);
  83   crypto_sw_scheduler_queue_t *q = ptd->queues[frame->op];
  84   u64 head = q->head;
  85
  86   if (q->jobs[head & CRYPTO_SW_SCHEDULER_QUEUE_MASK])
  87     {
  88       u32 n_elts = frame->n_elts, i;
  89       for (i = 0; i < n_elts; i++)
  90         frame->elts[i].status = VNET_CRYPTO_OP_STATUS_FAIL_ENGINE_ERR;
  91       return -1;
  92     }
  93   q->jobs[head & CRYPTO_SW_SCHEDULER_QUEUE_MASK] = frame;
  94   head += 1;
  95   CLIB_MEMORY_STORE_BARRIER ();
  96   q->head = head;
  97   return 0;
  98 }
  99
 100 static_always_inline vnet_crypto_async_frame_t *
 101 crypto_sw_scheduler_get_pending_frame (crypto_sw_scheduler_queue_t * q)
 102 {
 103   vnet_crypto_async_frame_t *f;
 104   u32 i;
 105   u32 tail = q->tail;
 106   u32 head = q->head;
 107
 108   for (i = tail; i < head; i++)
 109     {
 110       f = q->jobs[i & CRYPTO_SW_SCHEDULER_QUEUE_MASK];
 111       if (!f)
 112         continue;
 113       if (clib_atomic_bool_cmp_and_swap
 114           (&f->state, VNET_CRYPTO_FRAME_STATE_PENDING,
 115            VNET_CRYPTO_FRAME_STATE_WORK_IN_PROGRESS))
 116         {
 117           return f;
 118         }
 119     }
 120   return NULL;
 121 }
 122
 123 static_always_inline vnet_crypto_async_frame_t *
 124 crypto_sw_scheduler_get_completed_frame (crypto_sw_scheduler_queue_t * q)
 125 {
 126   vnet_crypto_async_frame_t *f = 0;
 127   if (q->jobs[q->tail & CRYPTO_SW_SCHEDULER_QUEUE_MASK]
 128       && q->jobs[q->tail & CRYPTO_SW_SCHEDULER_QUEUE_MASK]->state
 129       >= VNET_CRYPTO_FRAME_STATE_SUCCESS)
 130     {
 131       u32 tail = q->tail;
 132       CLIB_MEMORY_STORE_BARRIER ();
 133       q->tail++;
 134       f = q->jobs[tail & CRYPTO_SW_SCHEDULER_QUEUE_MASK];
 135       q->jobs[tail & CRYPTO_SW_SCHEDULER_QUEUE_MASK] = 0;
 136     }
 137   return f;
 138 }
 139
 140 static_always_inline void
 141 cryptodev_sw_scheduler_sgl (vlib_main_t * vm,
 142                             crypto_sw_scheduler_per_thread_data_t * ptd,
 143                             vlib_buffer_t * b, vnet_crypto_op_t * op,
 144                             i32 offset, i32 len)
 145 {
 146   vnet_crypto_op_chunk_t *ch;
 147   vlib_buffer_t *nb = b;
 148   u32 n_chunks = 0;
 149   u32 chunk_index = vec_len (ptd->chunks);
 150
 151   while (len)
 152     {
 153       if (nb->current_data + nb->current_length > offset)
 154         {
 155           vec_add2 (ptd->chunks, ch, 1);
 156           ch->src = ch->dst = nb->data + offset;
 157           ch->len
 158             = clib_min (nb->current_data + nb->current_length - offset, len);
 159           len -= ch->len;
 160           offset = 0;
 161           n_chunks++;
 162           if (!len)
 163             break;
 164         }
 165       if (offset)
 166         offset -= nb->current_data + nb->current_length;
 167       if (nb->flags & VLIB_BUFFER_NEXT_PRESENT)
 168         nb = vlib_get_buffer (vm, nb->next_buffer);
 169       else
 170         break;
 171     }
 172
 173   ASSERT (offset == 0);
 174   if (n_chunks && len)
 175     {
 176       /* Some async crypto users can use buffers in creative ways, let's allow
 177        * some flexibility here...
 178        * Current example is ESP decrypt with ESN in async mode: it will stash
 179        * ESN at the end of the last buffer (if it can) because it must be part
 180        * of the integrity check but it will not update the buffer length.
 181        * Fixup the last operation chunk length if we have room.
 182        */
 183       ASSERT (vlib_buffer_space_left_at_end (vm, nb) >= len);
 184       if (vlib_buffer_space_left_at_end (vm, nb) >= len)
 185         ch->len += len;
 186     }
 187
 188   op->chunk_index = chunk_index;
 189   op->n_chunks = n_chunks;
 190 }
 191
 192 static_always_inline void
 193 crypto_sw_scheduler_convert_aead (vlib_main_t * vm,
 194                                   crypto_sw_scheduler_per_thread_data_t * ptd,
 195                                   vnet_crypto_async_frame_elt_t * fe,
 196                                   u32 index, u32 bi,
 197                                   vnet_crypto_op_id_t op_id, u16 aad_len,
 198                                   u8 tag_len)
 199 {
 200   vlib_buffer_t *b = vlib_get_buffer (vm, bi);
 201   vnet_crypto_op_t *op = 0;
 202
 203   if (fe->flags & VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS)
 204     {
 205       vec_add2 (ptd->chained_crypto_ops, op, 1);
 206       cryptodev_sw_scheduler_sgl (vm, ptd, b, op, fe->crypto_start_offset,
 207                                   fe->crypto_total_length);
 208     }
 209   else
 210     {
 211       vec_add2 (ptd->crypto_ops, op, 1);
 212       op->src = op->dst = b->data + fe->crypto_start_offset;
 213       op->len = fe->crypto_total_length;
 214     }
 215
 216   op->op = op_id;
 217   op->tag = fe->tag;
 218   op->flags = fe->flags;
 219   op->key_index = fe->key_index;
 220   op->iv = fe->iv;
 221   op->aad = fe->aad;
 222   op->aad_len = aad_len;
 223   op->tag_len = tag_len;
 224   op->user_data = index;
 225 }
 226
 227 static_always_inline void
 228 crypto_sw_scheduler_convert_link_crypto (vlib_main_t * vm,
 229                                          crypto_sw_scheduler_per_thread_data_t
 230                                          * ptd, vnet_crypto_key_t * key,
 231                                          vnet_crypto_async_frame_elt_t * fe,
 232                                          u32 index, u32 bi,
 233                                          vnet_crypto_op_id_t crypto_op_id,
 234                                          vnet_crypto_op_id_t integ_op_id,
 235                                          u32 digest_len, u8 is_enc)
 236 {
 237   vlib_buffer_t *b = vlib_get_buffer (vm, bi);
 238   vnet_crypto_op_t *crypto_op = 0, *integ_op = 0;
 239
 240   if (fe->flags & VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS)
 241     {
 242       vec_add2 (ptd->chained_crypto_ops, crypto_op, 1);
 243       vec_add2 (ptd->chained_integ_ops, integ_op, 1);
 244       cryptodev_sw_scheduler_sgl (vm, ptd, b, crypto_op,
 245                                   fe->crypto_start_offset,
 246                                   fe->crypto_total_length);
 247       cryptodev_sw_scheduler_sgl (vm, ptd, b, integ_op,
 248                                   fe->integ_start_offset,
 249                                   fe->crypto_total_length +
 250                                   fe->integ_length_adj);
 251     }
 252   else
 253     {
 254       vec_add2 (ptd->crypto_ops, crypto_op, 1);
 255       vec_add2 (ptd->integ_ops, integ_op, 1);
 256       crypto_op->src = crypto_op->dst = b->data + fe->crypto_start_offset;
 257       crypto_op->len = fe->crypto_total_length;
 258       integ_op->src = integ_op->dst = b->data + fe->integ_start_offset;
 259       integ_op->len = fe->crypto_total_length + fe->integ_length_adj;
 260     }
 261
 262   crypto_op->op = crypto_op_id;
 263   crypto_op->iv = fe->iv;
 264   crypto_op->key_index = key->index_crypto;
 265   crypto_op->user_data = 0;
 266   crypto_op->flags = fe->flags & ~VNET_CRYPTO_OP_FLAG_HMAC_CHECK;
 267   integ_op->op = integ_op_id;
 268   integ_op->digest = fe->digest;
 269   integ_op->digest_len = digest_len;
 270   integ_op->key_index = key->index_integ;
 271   integ_op->flags = fe->flags & ~VNET_CRYPTO_OP_FLAG_INIT_IV;
 272   crypto_op->user_data = integ_op->user_data = index;
 273 }
 274
 275 static_always_inline void
 276 process_ops (vlib_main_t * vm, vnet_crypto_async_frame_t * f,
 277              vnet_crypto_op_t * ops, u8 * state)
 278 {
 279   u32 n_fail, n_ops = vec_len (ops);
 280   vnet_crypto_op_t *op = ops;
 281
 282   if (n_ops == 0)
 283     return;
 284
 285   n_fail = n_ops - vnet_crypto_process_ops (vm, op, n_ops);
 286
 287   while (n_fail)
 288     {
 289       ASSERT (op - ops < n_ops);
 290
 291       if (op->status != VNET_CRYPTO_OP_STATUS_COMPLETED)
 292         {
 293           f->elts[op->user_data].status = op->status;
 294           *state = VNET_CRYPTO_FRAME_STATE_ELT_ERROR;
 295           n_fail--;
 296         }
 297       op++;
 298     }
 299 }
 300
 301 static_always_inline void
 302 process_chained_ops (vlib_main_t * vm, vnet_crypto_async_frame_t * f,
 303                      vnet_crypto_op_t * ops, vnet_crypto_op_chunk_t * chunks,
 304                      u8 * state)
 305 {
 306   u32 n_fail, n_ops = vec_len (ops);
 307   vnet_crypto_op_t *op = ops;
 308
 309   if (n_ops == 0)
 310     return;
 311
 312   n_fail = n_ops - vnet_crypto_process_chained_ops (vm, op, chunks, n_ops);
 313
 314   while (n_fail)
 315     {
 316       ASSERT (op - ops < n_ops);
 317
 318       if (op->status != VNET_CRYPTO_OP_STATUS_COMPLETED)
 319         {
 320           f->elts[op->user_data].status = op->status;
 321           *state = VNET_CRYPTO_FRAME_STATE_ELT_ERROR;
 322           n_fail--;
 323         }
 324       op++;
 325     }
 326 }
 327
 328 static_always_inline vnet_crypto_async_frame_t *
 329 crypto_sw_scheduler_dequeue_aead (vlib_main_t * vm,
 330                                   vnet_crypto_async_op_id_t async_op_id,
 331                                   vnet_crypto_op_id_t sync_op_id, u8 tag_len,
 332                                   u8 aad_len, u32 * nb_elts_processed,
 333                                   u32 * enqueue_thread_idx)
 334 {
 335   crypto_sw_scheduler_main_t *cm = &crypto_sw_scheduler_main;
 336   crypto_sw_scheduler_per_thread_data_t *ptd = 0;
 337   crypto_sw_scheduler_queue_t *q = 0;
 338   vnet_crypto_async_frame_t *f = 0;
 339   vnet_crypto_async_frame_elt_t *fe;
 340   u32 *bi;
 341   u32 n_elts;
 342   int i = 0;
 343   u8 state = VNET_CRYPTO_FRAME_STATE_SUCCESS;
 344
 345   if (cm->per_thread_data[vm->thread_index].self_crypto_enabled)
 346     {
 347       /* *INDENT-OFF* */
 348       vec_foreach_index (i, cm->per_thread_data)
 349       {
 350         ptd = cm->per_thread_data + i;
 351         q = ptd->queues[async_op_id];
 352         f = crypto_sw_scheduler_get_pending_frame (q);
 353         if (f)
 354           break;
 355       }
 356       /* *INDENT-ON* */
 357     }
 358
 359   ptd = cm->per_thread_data + vm->thread_index;
 360
 361   if (f)
 362     {
 363       *nb_elts_processed = n_elts = f->n_elts;
 364       fe = f->elts;
 365       bi = f->buffer_indices;
 366
 367       vec_reset_length (ptd->crypto_ops);
 368       vec_reset_length (ptd->chained_crypto_ops);
 369       vec_reset_length (ptd->chunks);
 370
 371       while (n_elts--)
 372         {
 373           if (n_elts > 1)
 374             CLIB_PREFETCH (fe + 1, CLIB_CACHE_LINE_BYTES, LOAD);
 375
 376           crypto_sw_scheduler_convert_aead (vm, ptd, fe, fe - f->elts, bi[0],
 377                                             sync_op_id, aad_len, tag_len);
 378           bi++;
 379           fe++;
 380         }
 381
 382       process_ops (vm, f, ptd->crypto_ops, &state);
 383       process_chained_ops (vm, f, ptd->chained_crypto_ops, ptd->chunks,
 384                            &state);
 385       f->state = state;
 386       *enqueue_thread_idx = f->enqueue_thread_index;
 387     }
 388
 389   return crypto_sw_scheduler_get_completed_frame (ptd->queues[async_op_id]);
 390 }
 391
 392 static_always_inline vnet_crypto_async_frame_t *
 393 crypto_sw_scheduler_dequeue_link (vlib_main_t * vm,
 394                                   vnet_crypto_async_op_id_t async_op_id,
 395                                   vnet_crypto_op_id_t sync_crypto_op_id,
 396                                   vnet_crypto_op_id_t sync_integ_op_id,
 397                                   u16 digest_len, u8 is_enc,
 398                                   u32 * nb_elts_processed,
 399                                   u32 * enqueue_thread_idx)
 400 {
 401   crypto_sw_scheduler_main_t *cm = &crypto_sw_scheduler_main;
 402   crypto_sw_scheduler_per_thread_data_t *ptd = 0;
 403   crypto_sw_scheduler_queue_t *q = 0;
 404   vnet_crypto_async_frame_t *f = 0;
 405   vnet_crypto_async_frame_elt_t *fe;
 406   u32 *bi;
 407   u32 n_elts;
 408   int i = 0;
 409   u8 state = VNET_CRYPTO_FRAME_STATE_SUCCESS;
 410
 411   if (cm->per_thread_data[vm->thread_index].self_crypto_enabled)
 412     {
 413       /* *INDENT-OFF* */
 414       vec_foreach_index (i, cm->per_thread_data)
 415       {
 416         ptd = cm->per_thread_data + i;
 417         q = ptd->queues[async_op_id];
 418         f = crypto_sw_scheduler_get_pending_frame (q);
 419         if (f)
 420           break;
 421       }
 422       /* *INDENT-ON* */
 423     }
 424
 425   ptd = cm->per_thread_data + vm->thread_index;
 426
 427   if (f)
 428     {
 429       vec_reset_length (ptd->crypto_ops);
 430       vec_reset_length (ptd->integ_ops);
 431       vec_reset_length (ptd->chained_crypto_ops);
 432       vec_reset_length (ptd->chained_integ_ops);
 433       vec_reset_length (ptd->chunks);
 434
 435       *nb_elts_processed = n_elts = f->n_elts;
 436       fe = f->elts;
 437       bi = f->buffer_indices;
 438
 439       while (n_elts--)
 440         {
 441           if (n_elts > 1)
 442             CLIB_PREFETCH (fe + 1, CLIB_CACHE_LINE_BYTES, LOAD);
 443
 444           crypto_sw_scheduler_convert_link_crypto (vm, ptd,
 445                                                    cm->keys + fe->key_index,
 446                                                    fe, fe - f->elts, bi[0],
 447                                                    sync_crypto_op_id,
 448                                                    sync_integ_op_id,
 449                                                    digest_len, is_enc);
 450           bi++;
 451           fe++;
 452         }
 453
 454       if (is_enc)
 455         {
 456           process_ops (vm, f, ptd->crypto_ops, &state);
 457           process_chained_ops (vm, f, ptd->chained_crypto_ops, ptd->chunks,
 458                                &state);
 459           process_ops (vm, f, ptd->integ_ops, &state);
 460           process_chained_ops (vm, f, ptd->chained_integ_ops, ptd->chunks,
 461                                &state);
 462         }
 463       else
 464         {
 465           process_ops (vm, f, ptd->integ_ops, &state);
 466           process_chained_ops (vm, f, ptd->chained_integ_ops, ptd->chunks,
 467                                &state);
 468           process_ops (vm, f, ptd->crypto_ops, &state);
 469           process_chained_ops (vm, f, ptd->chained_crypto_ops, ptd->chunks,
 470                                &state);
 471         }
 472
 473       f->state = state;
 474       *enqueue_thread_idx = f->enqueue_thread_index;
 475     }
 476
 477   return crypto_sw_scheduler_get_completed_frame (ptd->queues[async_op_id]);
 478 }
 479
 480 static clib_error_t *
 481 sw_scheduler_set_worker_crypto (vlib_main_t * vm, unformat_input_t * input,
 482                                 vlib_cli_command_t * cmd)
 483 {
 484   unformat_input_t _line_input, *line_input = &_line_input;
 485   u32 worker_index;
 486   u8 crypto_enable;
 487   int rv;
 488
 489   /* Get a line of input. */
 490   if (!unformat_user (input, unformat_line_input, line_input))
 491     return 0;
 492
 493   while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
 494     {
 495       if (unformat (line_input, "worker %u", &worker_index))
 496         {
 497           if (unformat (line_input, "crypto"))
 498             {
 499               if (unformat (line_input, "on"))
 500                 crypto_enable = 1;
 501               else if (unformat (line_input, "off"))
 502                 crypto_enable = 0;
 503               else
 504                 return (clib_error_return (0, "unknown input '%U'",
 505                                            format_unformat_error,
 506                                            line_input));
 507             }
 508           else
 509             return (clib_error_return (0, "unknown input '%U'",
 510                                        format_unformat_error, line_input));
 511         }
 512       else
 513         return (clib_error_return (0, "unknown input '%U'",
 514                                    format_unformat_error, line_input));
 515     }
 516
 517   rv = crypto_sw_scheduler_set_worker_crypto (worker_index, crypto_enable);
 518   if (rv == VNET_API_ERROR_INVALID_VALUE)
 519     {
 520       return (clib_error_return (0, "invalid worker idx: %d", worker_index));
 521     }
 522   else if (rv == VNET_API_ERROR_INVALID_VALUE_2)
 523     {
 524       return (clib_error_return (0, "cannot disable all crypto workers"));
 525     }
 526   return 0;
 527 }
 528
 529 /*?
 530  * This command sets if worker will do crypto processing.
 531  *
 532  * @cliexpar
 533  * Example of how to set worker crypto processing off:
 534  * @cliexstart{set sw_scheduler worker 0 crypto off}
 535  * @cliexend
 536  ?*/
 537 /* *INDENT-OFF* */
 538 VLIB_CLI_COMMAND (cmd_set_sw_scheduler_worker_crypto, static) = {
 539   .path = "set sw_scheduler",
 540   .short_help = "set sw_scheduler worker <idx> crypto <on|off>",
 541   .function = sw_scheduler_set_worker_crypto,
 542   .is_mp_safe = 1,
 543 };
 544 /* *INDENT-ON* */
 545
 546 static clib_error_t *
 547 sw_scheduler_show_workers (vlib_main_t * vm, unformat_input_t * input,
 548                            vlib_cli_command_t * cmd)
 549 {
 550   crypto_sw_scheduler_main_t *cm = &crypto_sw_scheduler_main;
 551   u32 i;
 552
 553   vlib_cli_output (vm, "%-7s%-20s%-8s", "ID", "Name", "Crypto");
 554   for (i = 1; i < vlib_thread_main.n_vlib_mains; i++)
 555     {
 556       vlib_cli_output (vm, "%-7d%-20s%-8s", vlib_get_worker_index (i),
 557                        (vlib_worker_threads + i)->name,
 558                        cm->
 559                        per_thread_data[i].self_crypto_enabled ? "on" : "off");
 560     }
 561
 562   return 0;
 563 }
 564
 565 /*?
 566  * This command displays sw_scheduler workers.
 567  *
 568  * @cliexpar
 569  * Example of how to show workers:
 570  * @cliexstart{show sw_scheduler workers}
 571  * @cliexend
 572  ?*/
 573 /* *INDENT-OFF* */
 574 VLIB_CLI_COMMAND (cmd_show_sw_scheduler_workers, static) = {
 575   .path = "show sw_scheduler workers",
 576   .short_help = "show sw_scheduler workers",
 577   .function = sw_scheduler_show_workers,
 578   .is_mp_safe = 1,
 579 };
 580 /* *INDENT-ON* */
 581
 582 clib_error_t *
 583 sw_scheduler_cli_init (vlib_main_t * vm)
 584 {
 585   return 0;
 586 }
 587
 588 VLIB_INIT_FUNCTION (sw_scheduler_cli_init);
 589
 590 /* *INDENT-OFF* */
 591 #define _(n, s, k, t, a)                                                      \
 592   static vnet_crypto_async_frame_t                                            \
 593       *crypto_sw_scheduler_frame_dequeue_##n##_TAG_##t##_AAD_##a##_enc (      \
 594           vlib_main_t *vm, u32 *nb_elts_processed, u32 * thread_idx)          \
 595   {                                                                           \
 596     return crypto_sw_scheduler_dequeue_aead (                                 \
 597         vm, VNET_CRYPTO_OP_##n##_TAG##t##_AAD##a##_ENC,                       \
 598         VNET_CRYPTO_OP_##n##_ENC, t, a, nb_elts_processed, thread_idx);       \
 599   }                                                                           \
 600   static vnet_crypto_async_frame_t                                            \
 601       *crypto_sw_scheduler_frame_dequeue_##n##_TAG_##t##_AAD_##a##_dec (      \
 602           vlib_main_t *vm, u32 *nb_elts_processed, u32 * thread_idx)          \
 603   {                                                                           \
 604     return crypto_sw_scheduler_dequeue_aead (                                 \
 605         vm, VNET_CRYPTO_OP_##n##_TAG##t##_AAD##a##_DEC,                       \
 606         VNET_CRYPTO_OP_##n##_DEC, t, a, nb_elts_processed, thread_idx);       \
 607   }
 608 foreach_crypto_aead_async_alg
 609 #undef _
 610
 611 #define _(c, h, s, k, d)                                                      \
 612   static vnet_crypto_async_frame_t                                            \
 613       *crypto_sw_scheduler_frame_dequeue_##c##_##h##_TAG##d##_enc (           \
 614           vlib_main_t *vm, u32 *nb_elts_processed, u32 * thread_idx)          \
 615   {                                                                           \
 616     return crypto_sw_scheduler_dequeue_link (                                 \
 617         vm, VNET_CRYPTO_OP_##c##_##h##_TAG##d##_ENC,                          \
 618         VNET_CRYPTO_OP_##c##_ENC, VNET_CRYPTO_OP_##h##_HMAC, d, 1,            \
 619         nb_elts_processed, thread_idx);                                       \
 620   }                                                                           \
 621   static vnet_crypto_async_frame_t                                            \
 622       *crypto_sw_scheduler_frame_dequeue_##c##_##h##_TAG##d##_dec (           \
 623           vlib_main_t *vm, u32 *nb_elts_processed, u32 * thread_idx)          \
 624   {                                                                           \
 625     return crypto_sw_scheduler_dequeue_link (                                 \
 626         vm, VNET_CRYPTO_OP_##c##_##h##_TAG##d##_DEC,                          \
 627         VNET_CRYPTO_OP_##c##_DEC, VNET_CRYPTO_OP_##h##_HMAC, d, 0,            \
 628         nb_elts_processed, thread_idx);                                       \
 629   }
 630     foreach_crypto_link_async_alg
 631 #undef _
 632         /* *INDENT-ON* */
 633
 634 crypto_sw_scheduler_main_t crypto_sw_scheduler_main;
 635 clib_error_t *
 636 crypto_sw_scheduler_init (vlib_main_t * vm)
 637 {
 638   crypto_sw_scheduler_main_t *cm = &crypto_sw_scheduler_main;
 639   vlib_thread_main_t *tm = vlib_get_thread_main ();
 640   clib_error_t *error = 0;
 641   crypto_sw_scheduler_per_thread_data_t *ptd;
 642
 643   u32 queue_size = CRYPTO_SW_SCHEDULER_QUEUE_SIZE * sizeof (void *)
 644     + sizeof (crypto_sw_scheduler_queue_t);
 645
 646   vec_validate_aligned (cm->per_thread_data, tm->n_vlib_mains - 1,
 647                         CLIB_CACHE_LINE_BYTES);
 648
 649   vec_foreach (ptd, cm->per_thread_data)
 650   {
 651     ptd->self_crypto_enabled = 1;
 652     u32 i;
 653     for (i = 0; i < VNET_CRYPTO_ASYNC_OP_N_IDS; i++)
 654       {
 655         crypto_sw_scheduler_queue_t *q
 656           = clib_mem_alloc_aligned (queue_size, CLIB_CACHE_LINE_BYTES);
 657         ASSERT (q != 0);
 658         ptd->queues[i] = q;
 659         clib_memset_u8 (q, 0, queue_size);
 660       }
 661   }
 662
 663   cm->crypto_engine_index =
 664     vnet_crypto_register_engine (vm, "sw_scheduler", 100,
 665                                  "SW Scheduler Async Engine");
 666
 667   vnet_crypto_register_key_handler (vm, cm->crypto_engine_index,
 668                                     crypto_sw_scheduler_key_handler);
 669
 670   crypto_sw_scheduler_api_init (vm);
 671
 672   /* *INDENT-OFF* */
 673 #define _(n, s, k, t, a)                                                      \
 674   vnet_crypto_register_async_handler (                                        \
 675       vm, cm->crypto_engine_index,                                            \
 676       VNET_CRYPTO_OP_##n##_TAG##t##_AAD##a##_ENC,                             \
 677       crypto_sw_scheduler_frame_enqueue,                                      \
 678       crypto_sw_scheduler_frame_dequeue_##n##_TAG_##t##_AAD_##a##_enc);       \
 679   vnet_crypto_register_async_handler (                                        \
 680       vm, cm->crypto_engine_index,                                            \
 681       VNET_CRYPTO_OP_##n##_TAG##t##_AAD##a##_DEC,                             \
 682       crypto_sw_scheduler_frame_enqueue,                                      \
 683       crypto_sw_scheduler_frame_dequeue_##n##_TAG_##t##_AAD_##a##_dec);
 684   foreach_crypto_aead_async_alg
 685 #undef _
 686
 687 #define _(c, h, s, k, d)                                                      \
 688   vnet_crypto_register_async_handler (                                        \
 689       vm, cm->crypto_engine_index, VNET_CRYPTO_OP_##c##_##h##_TAG##d##_ENC,   \
 690       crypto_sw_scheduler_frame_enqueue,                                      \
 691       crypto_sw_scheduler_frame_dequeue_##c##_##h##_TAG##d##_enc);            \
 692   vnet_crypto_register_async_handler (                                        \
 693       vm, cm->crypto_engine_index, VNET_CRYPTO_OP_##c##_##h##_TAG##d##_DEC,   \
 694       crypto_sw_scheduler_frame_enqueue,                                      \
 695       crypto_sw_scheduler_frame_dequeue_##c##_##h##_TAG##d##_dec);
 696       foreach_crypto_link_async_alg
 697 #undef _
 698       /* *INDENT-ON* */
 699
 700   if (error)
 701     vec_free (cm->per_thread_data);
 702
 703   return error;
 704 }
 705
 706 /* *INDENT-OFF* */
 707 VLIB_INIT_FUNCTION (crypto_sw_scheduler_init) = {
 708   .runs_after = VLIB_INITS ("vnet_crypto_init"),
 709 };
 710
 711 VLIB_PLUGIN_REGISTER () = {
 712   .version = VPP_BUILD_VER,
 713   .description = "SW Scheduler Crypto Async Engine plugin",
 714 };
 715 /* *INDENT-ON* */
 716
 717 /*
 718  * fd.io coding-style-patch-verification: ON
 719  *
 720  * Local Variables:
 721  * eval: (c-set-style "gnu")
 722  * End:
 723  */