drivers/baseband/turbo_sw/bbdev_turbo_software.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2017 Intel Corporation
   3  */
   4
   5 #include <string.h>
   6
   7 #include <rte_common.h>
   8 #include <rte_bus_vdev.h>
   9 #include <rte_malloc.h>
  10 #include <rte_ring.h>
  11 #include <rte_kvargs.h>
  12 #include <rte_cycles.h>
  13
  14 #include <rte_bbdev.h>
  15 #include <rte_bbdev_pmd.h>
  16
  17 #ifdef RTE_BBDEV_SDK_AVX2
  18 #include <phy_turbo.h>
  19 #include <phy_crc.h>
  20 #include <phy_rate_match.h>
  21 #endif
  22
  23 #define DRIVER_NAME baseband_turbo_sw
  24
  25 /* Turbo SW PMD logging ID */
  26 static int bbdev_turbo_sw_logtype;
  27
  28 /* Helper macro for logging */
  29 #define rte_bbdev_log(level, fmt, ...) \
  30         rte_log(RTE_LOG_ ## level, bbdev_turbo_sw_logtype, fmt "\n", \
  31                 ##__VA_ARGS__)
  32
  33 #define rte_bbdev_log_debug(fmt, ...) \
  34         rte_bbdev_log(DEBUG, RTE_STR(__LINE__) ":%s() " fmt, __func__, \
  35                 ##__VA_ARGS__)
  36
  37 #define DEINT_INPUT_BUF_SIZE (((RTE_BBDEV_MAX_CB_SIZE >> 3) + 1) * 48)
  38 #define DEINT_OUTPUT_BUF_SIZE (DEINT_INPUT_BUF_SIZE * 6)
  39 #define ADAPTER_OUTPUT_BUF_SIZE ((RTE_BBDEV_MAX_CB_SIZE + 4) * 48)
  40
  41 /* private data structure */
  42 struct bbdev_private {
  43         unsigned int max_nb_queues;  /**< Max number of queues */
  44 };
  45
  46 /*  Initialisation params structure that can be used by Turbo SW driver */
  47 struct turbo_sw_params {
  48         int socket_id;  /*< Turbo SW device socket */
  49         uint16_t queues_num;  /*< Turbo SW device queues number */
  50 };
  51
  52 /* Accecptable params for Turbo SW devices */
  53 #define TURBO_SW_MAX_NB_QUEUES_ARG  "max_nb_queues"
  54 #define TURBO_SW_SOCKET_ID_ARG      "socket_id"
  55
  56 static const char * const turbo_sw_valid_params[] = {
  57         TURBO_SW_MAX_NB_QUEUES_ARG,
  58         TURBO_SW_SOCKET_ID_ARG
  59 };
  60
  61 /* queue */
  62 struct turbo_sw_queue {
  63         /* Ring for processed (encoded/decoded) operations which are ready to
  64          * be dequeued.
  65          */
  66         struct rte_ring *processed_pkts;
  67         /* Stores input for turbo encoder (used when CRC attachment is
  68          * performed
  69          */
  70         uint8_t *enc_in;
  71         /* Stores output from turbo encoder */
  72         uint8_t *enc_out;
  73         /* Alpha gamma buf for bblib_turbo_decoder() function */
  74         int8_t *ag;
  75         /* Temp buf for bblib_turbo_decoder() function */
  76         uint16_t *code_block;
  77         /* Input buf for bblib_rate_dematching_lte() function */
  78         uint8_t *deint_input;
  79         /* Output buf for bblib_rate_dematching_lte() function */
  80         uint8_t *deint_output;
  81         /* Output buf for bblib_turbodec_adapter_lte() function */
  82         uint8_t *adapter_output;
  83         /* Operation type of this queue */
  84         enum rte_bbdev_op_type type;
  85 } __rte_cache_aligned;
  86
  87 #ifdef RTE_BBDEV_SDK_AVX2
  88 static inline char *
  89 mbuf_append(struct rte_mbuf *m_head, struct rte_mbuf *m, uint16_t len)
  90 {
  91         if (unlikely(len > rte_pktmbuf_tailroom(m)))
  92                 return NULL;
  93
  94         char *tail = (char *)m->buf_addr + m->data_off + m->data_len;
  95         m->data_len = (uint16_t)(m->data_len + len);
  96         m_head->pkt_len  = (m_head->pkt_len + len);
  97         return tail;
  98 }
  99
 100 /* Calculate index based on Table 5.1.3-3 from TS34.212 */
 101 static inline int32_t
 102 compute_idx(uint16_t k)
 103 {
 104         int32_t result = 0;
 105
 106         if (k < RTE_BBDEV_MIN_CB_SIZE || k > RTE_BBDEV_MAX_CB_SIZE)
 107                 return -1;
 108
 109         if (k > 2048) {
 110                 if ((k - 2048) % 64 != 0)
 111                         result = -1;
 112
 113                 result = 124 + (k - 2048) / 64;
 114         } else if (k <= 512) {
 115                 if ((k - 40) % 8 != 0)
 116                         result = -1;
 117
 118                 result = (k - 40) / 8 + 1;
 119         } else if (k <= 1024) {
 120                 if ((k - 512) % 16 != 0)
 121                         result = -1;
 122
 123                 result = 60 + (k - 512) / 16;
 124         } else { /* 1024 < k <= 2048 */
 125                 if ((k - 1024) % 32 != 0)
 126                         result = -1;
 127
 128                 result = 92 + (k - 1024) / 32;
 129         }
 130
 131         return result;
 132 }
 133 #endif
 134
 135 /* Read flag value 0/1 from bitmap */
 136 static inline bool
 137 check_bit(uint32_t bitmap, uint32_t bitmask)
 138 {
 139         return bitmap & bitmask;
 140 }
 141
 142 /* Get device info */
 143 static void
 144 info_get(struct rte_bbdev *dev, struct rte_bbdev_driver_info *dev_info)
 145 {
 146         struct bbdev_private *internals = dev->data->dev_private;
 147
 148         static const struct rte_bbdev_op_cap bbdev_capabilities[] = {
 149 #ifdef RTE_BBDEV_SDK_AVX2
 150                 {
 151                         .type = RTE_BBDEV_OP_TURBO_DEC,
 152                         .cap.turbo_dec = {
 153                                 .capability_flags =
 154                                         RTE_BBDEV_TURBO_SUBBLOCK_DEINTERLEAVE |
 155                                         RTE_BBDEV_TURBO_POS_LLR_1_BIT_IN |
 156                                         RTE_BBDEV_TURBO_NEG_LLR_1_BIT_IN |
 157                                         RTE_BBDEV_TURBO_CRC_TYPE_24B |
 158                                         RTE_BBDEV_TURBO_DEC_TB_CRC_24B_KEEP |
 159                                         RTE_BBDEV_TURBO_EARLY_TERMINATION,
 160                                 .max_llr_modulus = 16,
 161                                 .num_buffers_src = RTE_BBDEV_MAX_CODE_BLOCKS,
 162                                 .num_buffers_hard_out =
 163                                                 RTE_BBDEV_MAX_CODE_BLOCKS,
 164                                 .num_buffers_soft_out = 0,
 165                         }
 166                 },
 167                 {
 168                         .type   = RTE_BBDEV_OP_TURBO_ENC,
 169                         .cap.turbo_enc = {
 170                                 .capability_flags =
 171                                                 RTE_BBDEV_TURBO_CRC_24B_ATTACH |
 172                                                 RTE_BBDEV_TURBO_CRC_24A_ATTACH |
 173                                                 RTE_BBDEV_TURBO_RATE_MATCH |
 174                                                 RTE_BBDEV_TURBO_RV_INDEX_BYPASS,
 175                                 .num_buffers_src = RTE_BBDEV_MAX_CODE_BLOCKS,
 176                                 .num_buffers_dst = RTE_BBDEV_MAX_CODE_BLOCKS,
 177                         }
 178                 },
 179 #endif
 180                 RTE_BBDEV_END_OF_CAPABILITIES_LIST()
 181         };
 182
 183         static struct rte_bbdev_queue_conf default_queue_conf = {
 184                 .queue_size = RTE_BBDEV_QUEUE_SIZE_LIMIT,
 185         };
 186
 187 #ifdef RTE_BBDEV_SDK_AVX2
 188         static const enum rte_cpu_flag_t cpu_flag = RTE_CPUFLAG_SSE4_2;
 189         dev_info->cpu_flag_reqs = &cpu_flag;
 190 #else
 191         dev_info->cpu_flag_reqs = NULL;
 192 #endif
 193
 194         default_queue_conf.socket = dev->data->socket_id;
 195
 196         dev_info->driver_name = RTE_STR(DRIVER_NAME);
 197         dev_info->max_num_queues = internals->max_nb_queues;
 198         dev_info->queue_size_lim = RTE_BBDEV_QUEUE_SIZE_LIMIT;
 199         dev_info->hardware_accelerated = false;
 200         dev_info->max_dl_queue_priority = 0;
 201         dev_info->max_ul_queue_priority = 0;
 202         dev_info->default_queue_conf = default_queue_conf;
 203         dev_info->capabilities = bbdev_capabilities;
 204         dev_info->min_alignment = 64;
 205
 206         rte_bbdev_log_debug("got device info from %u\n", dev->data->dev_id);
 207 }
 208
 209 /* Release queue */
 210 static int
 211 q_release(struct rte_bbdev *dev, uint16_t q_id)
 212 {
 213         struct turbo_sw_queue *q = dev->data->queues[q_id].queue_private;
 214
 215         if (q != NULL) {
 216                 rte_ring_free(q->processed_pkts);
 217                 rte_free(q->enc_out);
 218                 rte_free(q->enc_in);
 219                 rte_free(q->ag);
 220                 rte_free(q->code_block);
 221                 rte_free(q->deint_input);
 222                 rte_free(q->deint_output);
 223                 rte_free(q->adapter_output);
 224                 rte_free(q);
 225                 dev->data->queues[q_id].queue_private = NULL;
 226         }
 227
 228         rte_bbdev_log_debug("released device queue %u:%u",
 229                         dev->data->dev_id, q_id);
 230         return 0;
 231 }
 232
 233 /* Setup a queue */
 234 static int
 235 q_setup(struct rte_bbdev *dev, uint16_t q_id,
 236                 const struct rte_bbdev_queue_conf *queue_conf)
 237 {
 238         int ret;
 239         struct turbo_sw_queue *q;
 240         char name[RTE_RING_NAMESIZE];
 241
 242         /* Allocate the queue data structure. */
 243         q = rte_zmalloc_socket(RTE_STR(DRIVER_NAME), sizeof(*q),
 244                         RTE_CACHE_LINE_SIZE, queue_conf->socket);
 245         if (q == NULL) {
 246                 rte_bbdev_log(ERR, "Failed to allocate queue memory");
 247                 return -ENOMEM;
 248         }
 249
 250         /* Allocate memory for encoder output. */
 251         ret = snprintf(name, RTE_RING_NAMESIZE, RTE_STR(DRIVER_NAME)"_enc_o%u:%u",
 252                         dev->data->dev_id, q_id);
 253         if ((ret < 0) || (ret >= (int)RTE_RING_NAMESIZE)) {
 254                 rte_bbdev_log(ERR,
 255                                 "Creating queue name for device %u queue %u failed",
 256                                 dev->data->dev_id, q_id);
 257                 return -ENAMETOOLONG;
 258         }
 259         q->enc_out = rte_zmalloc_socket(name,
 260                         ((RTE_BBDEV_MAX_TB_SIZE >> 3) + 3) *
 261                         sizeof(*q->enc_out) * 3,
 262                         RTE_CACHE_LINE_SIZE, queue_conf->socket);
 263         if (q->enc_out == NULL) {
 264                 rte_bbdev_log(ERR,
 265                         "Failed to allocate queue memory for %s", name);
 266                 goto free_q;
 267         }
 268
 269         /* Allocate memory for rate matching output. */
 270         ret = snprintf(name, RTE_RING_NAMESIZE,
 271                         RTE_STR(DRIVER_NAME)"_enc_i%u:%u", dev->data->dev_id,
 272                         q_id);
 273         if ((ret < 0) || (ret >= (int)RTE_RING_NAMESIZE)) {
 274                 rte_bbdev_log(ERR,
 275                                 "Creating queue name for device %u queue %u failed",
 276                                 dev->data->dev_id, q_id);
 277                 return -ENAMETOOLONG;
 278         }
 279         q->enc_in = rte_zmalloc_socket(name,
 280                         (RTE_BBDEV_MAX_CB_SIZE >> 3) * sizeof(*q->enc_in),
 281                         RTE_CACHE_LINE_SIZE, queue_conf->socket);
 282         if (q->enc_in == NULL) {
 283                 rte_bbdev_log(ERR,
 284                         "Failed to allocate queue memory for %s", name);
 285                 goto free_q;
 286         }
 287
 288         /* Allocate memory for Aplha Gamma temp buffer. */
 289         ret = snprintf(name, RTE_RING_NAMESIZE, RTE_STR(DRIVER_NAME)"_ag%u:%u",
 290                         dev->data->dev_id, q_id);
 291         if ((ret < 0) || (ret >= (int)RTE_RING_NAMESIZE)) {
 292                 rte_bbdev_log(ERR,
 293                                 "Creating queue name for device %u queue %u failed",
 294                                 dev->data->dev_id, q_id);
 295                 return -ENAMETOOLONG;
 296         }
 297         q->ag = rte_zmalloc_socket(name,
 298                         RTE_BBDEV_MAX_CB_SIZE * 10 * sizeof(*q->ag),
 299                         RTE_CACHE_LINE_SIZE, queue_conf->socket);
 300         if (q->ag == NULL) {
 301                 rte_bbdev_log(ERR,
 302                         "Failed to allocate queue memory for %s", name);
 303                 goto free_q;
 304         }
 305
 306         /* Allocate memory for code block temp buffer. */
 307         ret = snprintf(name, RTE_RING_NAMESIZE, RTE_STR(DRIVER_NAME)"_cb%u:%u",
 308                         dev->data->dev_id, q_id);
 309         if ((ret < 0) || (ret >= (int)RTE_RING_NAMESIZE)) {
 310                 rte_bbdev_log(ERR,
 311                                 "Creating queue name for device %u queue %u failed",
 312                                 dev->data->dev_id, q_id);
 313                 return -ENAMETOOLONG;
 314         }
 315         q->code_block = rte_zmalloc_socket(name,
 316                         RTE_BBDEV_MAX_CB_SIZE * sizeof(*q->code_block),
 317                         RTE_CACHE_LINE_SIZE, queue_conf->socket);
 318         if (q->code_block == NULL) {
 319                 rte_bbdev_log(ERR,
 320                         "Failed to allocate queue memory for %s", name);
 321                 goto free_q;
 322         }
 323
 324         /* Allocate memory for Deinterleaver input. */
 325         ret = snprintf(name, RTE_RING_NAMESIZE,
 326                         RTE_STR(DRIVER_NAME)"_de_i%u:%u",
 327                         dev->data->dev_id, q_id);
 328         if ((ret < 0) || (ret >= (int)RTE_RING_NAMESIZE)) {
 329                 rte_bbdev_log(ERR,
 330                                 "Creating queue name for device %u queue %u failed",
 331                                 dev->data->dev_id, q_id);
 332                 return -ENAMETOOLONG;
 333         }
 334         q->deint_input = rte_zmalloc_socket(name,
 335                         DEINT_INPUT_BUF_SIZE * sizeof(*q->deint_input),
 336                         RTE_CACHE_LINE_SIZE, queue_conf->socket);
 337         if (q->deint_input == NULL) {
 338                 rte_bbdev_log(ERR,
 339                         "Failed to allocate queue memory for %s", name);
 340                 goto free_q;
 341         }
 342
 343         /* Allocate memory for Deinterleaver output. */
 344         ret = snprintf(name, RTE_RING_NAMESIZE,
 345                         RTE_STR(DRIVER_NAME)"_de_o%u:%u",
 346                         dev->data->dev_id, q_id);
 347         if ((ret < 0) || (ret >= (int)RTE_RING_NAMESIZE)) {
 348                 rte_bbdev_log(ERR,
 349                                 "Creating queue name for device %u queue %u failed",
 350                                 dev->data->dev_id, q_id);
 351                 return -ENAMETOOLONG;
 352         }
 353         q->deint_output = rte_zmalloc_socket(NULL,
 354                         DEINT_OUTPUT_BUF_SIZE * sizeof(*q->deint_output),
 355                         RTE_CACHE_LINE_SIZE, queue_conf->socket);
 356         if (q->deint_output == NULL) {
 357                 rte_bbdev_log(ERR,
 358                         "Failed to allocate queue memory for %s", name);
 359                 goto free_q;
 360         }
 361
 362         /* Allocate memory for Adapter output. */
 363         ret = snprintf(name, RTE_RING_NAMESIZE,
 364                         RTE_STR(DRIVER_NAME)"_ada_o%u:%u",
 365                         dev->data->dev_id, q_id);
 366         if ((ret < 0) || (ret >= (int)RTE_RING_NAMESIZE)) {
 367                 rte_bbdev_log(ERR,
 368                                 "Creating queue name for device %u queue %u failed",
 369                                 dev->data->dev_id, q_id);
 370                 return -ENAMETOOLONG;
 371         }
 372         q->adapter_output = rte_zmalloc_socket(NULL,
 373                         ADAPTER_OUTPUT_BUF_SIZE * sizeof(*q->adapter_output),
 374                         RTE_CACHE_LINE_SIZE, queue_conf->socket);
 375         if (q->adapter_output == NULL) {
 376                 rte_bbdev_log(ERR,
 377                         "Failed to allocate queue memory for %s", name);
 378                 goto free_q;
 379         }
 380
 381         /* Create ring for packets awaiting to be dequeued. */
 382         ret = snprintf(name, RTE_RING_NAMESIZE, RTE_STR(DRIVER_NAME)"%u:%u",
 383                         dev->data->dev_id, q_id);
 384         if ((ret < 0) || (ret >= (int)RTE_RING_NAMESIZE)) {
 385                 rte_bbdev_log(ERR,
 386                                 "Creating queue name for device %u queue %u failed",
 387                                 dev->data->dev_id, q_id);
 388                 return -ENAMETOOLONG;
 389         }
 390         q->processed_pkts = rte_ring_create(name, queue_conf->queue_size,
 391                         queue_conf->socket, RING_F_SP_ENQ | RING_F_SC_DEQ);
 392         if (q->processed_pkts == NULL) {
 393                 rte_bbdev_log(ERR, "Failed to create ring for %s", name);
 394                 goto free_q;
 395         }
 396
 397         q->type = queue_conf->op_type;
 398
 399         dev->data->queues[q_id].queue_private = q;
 400         rte_bbdev_log_debug("setup device queue %s", name);
 401         return 0;
 402
 403 free_q:
 404         rte_ring_free(q->processed_pkts);
 405         rte_free(q->enc_out);
 406         rte_free(q->enc_in);
 407         rte_free(q->ag);
 408         rte_free(q->code_block);
 409         rte_free(q->deint_input);
 410         rte_free(q->deint_output);
 411         rte_free(q->adapter_output);
 412         rte_free(q);
 413         return -EFAULT;
 414 }
 415
 416 static const struct rte_bbdev_ops pmd_ops = {
 417         .info_get = info_get,
 418         .queue_setup = q_setup,
 419         .queue_release = q_release
 420 };
 421
 422 #ifdef RTE_BBDEV_SDK_AVX2
 423 /* Checks if the encoder input buffer is correct.
 424  * Returns 0 if it's valid, -1 otherwise.
 425  */
 426 static inline int
 427 is_enc_input_valid(const uint16_t k, const int32_t k_idx,
 428                 const uint16_t in_length)
 429 {
 430         if (k_idx < 0) {
 431                 rte_bbdev_log(ERR, "K Index is invalid");
 432                 return -1;
 433         }
 434
 435         if (in_length - (k >> 3) < 0) {
 436                 rte_bbdev_log(ERR,
 437                                 "Mismatch between input length (%u bytes) and K (%u bits)",
 438                                 in_length, k);
 439                 return -1;
 440         }
 441
 442         if (k > RTE_BBDEV_MAX_CB_SIZE) {
 443                 rte_bbdev_log(ERR, "CB size (%u) is too big, max: %d",
 444                                 k, RTE_BBDEV_MAX_CB_SIZE);
 445                 return -1;
 446         }
 447
 448         return 0;
 449 }
 450
 451 /* Checks if the decoder input buffer is correct.
 452  * Returns 0 if it's valid, -1 otherwise.
 453  */
 454 static inline int
 455 is_dec_input_valid(int32_t k_idx, int16_t kw, int16_t in_length)
 456 {
 457         if (k_idx < 0) {
 458                 rte_bbdev_log(ERR, "K index is invalid");
 459                 return -1;
 460         }
 461
 462         if (in_length < kw) {
 463                 rte_bbdev_log(ERR,
 464                                 "Mismatch between input length (%u) and kw (%u)",
 465                                 in_length, kw);
 466                 return -1;
 467         }
 468
 469         if (kw > RTE_BBDEV_MAX_KW) {
 470                 rte_bbdev_log(ERR, "Input length (%u) is too big, max: %d",
 471                                 kw, RTE_BBDEV_MAX_KW);
 472                 return -1;
 473         }
 474
 475         return 0;
 476 }
 477 #endif
 478
 479 static inline void
 480 process_enc_cb(struct turbo_sw_queue *q, struct rte_bbdev_enc_op *op,
 481                 uint8_t r, uint8_t c, uint16_t k, uint16_t ncb,
 482                 uint32_t e, struct rte_mbuf *m_in, struct rte_mbuf *m_out_head,
 483                 struct rte_mbuf *m_out, uint16_t in_offset, uint16_t out_offset,
 484                 uint16_t in_length, struct rte_bbdev_stats *q_stats)
 485 {
 486 #ifdef RTE_BBDEV_SDK_AVX2
 487         int ret;
 488         int16_t k_idx;
 489         uint16_t m;
 490         uint8_t *in, *out0, *out1, *out2, *tmp_out, *rm_out;
 491         uint64_t first_3_bytes = 0;
 492         struct rte_bbdev_op_turbo_enc *enc = &op->turbo_enc;
 493         struct bblib_crc_request crc_req;
 494         struct bblib_crc_response crc_resp;
 495         struct bblib_turbo_encoder_request turbo_req;
 496         struct bblib_turbo_encoder_response turbo_resp;
 497         struct bblib_rate_match_dl_request rm_req;
 498         struct bblib_rate_match_dl_response rm_resp;
 499 #ifdef RTE_BBDEV_OFFLOAD_COST
 500         uint64_t start_time;
 501 #else
 502         RTE_SET_USED(q_stats);
 503 #endif
 504
 505         k_idx = compute_idx(k);
 506         in = rte_pktmbuf_mtod_offset(m_in, uint8_t *, in_offset);
 507
 508         /* CRC24A (for TB) */
 509         if ((enc->op_flags & RTE_BBDEV_TURBO_CRC_24A_ATTACH) &&
 510                 (enc->code_block_mode == 1)) {
 511                 ret = is_enc_input_valid(k - 24, k_idx, in_length);
 512                 if (ret != 0) {
 513                         op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 514                         return;
 515                 }
 516                 crc_req.data = in;
 517                 crc_req.len = k - 24;
 518                 /* Check if there is a room for CRC bits if not use
 519                  * the temporary buffer.
 520                  */
 521                 if (mbuf_append(m_in, m_in, 3) == NULL) {
 522                         rte_memcpy(q->enc_in, in, (k - 24) >> 3);
 523                         in = q->enc_in;
 524                 } else {
 525                         /* Store 3 first bytes of next CB as they will be
 526                          * overwritten by CRC bytes. If it is the last CB then
 527                          * there is no point to store 3 next bytes and this
 528                          * if..else branch will be omitted.
 529                          */
 530                         first_3_bytes = *((uint64_t *)&in[(k - 32) >> 3]);
 531                 }
 532
 533                 crc_resp.data = in;
 534 #ifdef RTE_BBDEV_OFFLOAD_COST
 535                 start_time = rte_rdtsc_precise();
 536 #endif
 537                 /* CRC24A generation */
 538                 bblib_lte_crc24a_gen(&crc_req, &crc_resp);
 539 #ifdef RTE_BBDEV_OFFLOAD_COST
 540                 q_stats->acc_offload_cycles += rte_rdtsc_precise() - start_time;
 541 #endif
 542         } else if (enc->op_flags & RTE_BBDEV_TURBO_CRC_24B_ATTACH) {
 543                 /* CRC24B */
 544                 ret = is_enc_input_valid(k - 24, k_idx, in_length);
 545                 if (ret != 0) {
 546                         op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 547                         return;
 548                 }
 549                 crc_req.data = in;
 550                 crc_req.len = k - 24;
 551                 /* Check if there is a room for CRC bits if this is the last
 552                  * CB in TB. If not use temporary buffer.
 553                  */
 554                 if ((c - r == 1) && (mbuf_append(m_in, m_in, 3) == NULL)) {
 555                         rte_memcpy(q->enc_in, in, (k - 24) >> 3);
 556                         in = q->enc_in;
 557                 } else if (c - r > 1) {
 558                         /* Store 3 first bytes of next CB as they will be
 559                          * overwritten by CRC bytes. If it is the last CB then
 560                          * there is no point to store 3 next bytes and this
 561                          * if..else branch will be omitted.
 562                          */
 563                         first_3_bytes = *((uint64_t *)&in[(k - 32) >> 3]);
 564                 }
 565
 566                 crc_resp.data = in;
 567 #ifdef RTE_BBDEV_OFFLOAD_COST
 568                 start_time = rte_rdtsc_precise();
 569 #endif
 570                 /* CRC24B generation */
 571                 bblib_lte_crc24b_gen(&crc_req, &crc_resp);
 572 #ifdef RTE_BBDEV_OFFLOAD_COST
 573                 q_stats->acc_offload_cycles += rte_rdtsc_precise() - start_time;
 574 #endif
 575         } else {
 576                 ret = is_enc_input_valid(k, k_idx, in_length);
 577                 if (ret != 0) {
 578                         op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 579                         return;
 580                 }
 581         }
 582
 583         /* Turbo encoder */
 584
 585         /* Each bit layer output from turbo encoder is (k+4) bits long, i.e.
 586          * input length + 4 tail bits. That's (k/8) + 1 bytes after rounding up.
 587          * So dst_data's length should be 3*(k/8) + 3 bytes.
 588          * In Rate-matching bypass case outputs pointers passed to encoder
 589          * (out0, out1 and out2) can directly point to addresses of output from
 590          * turbo_enc entity.
 591          */
 592         if (enc->op_flags & RTE_BBDEV_TURBO_RATE_MATCH) {
 593                 out0 = q->enc_out;
 594                 out1 = RTE_PTR_ADD(out0, (k >> 3) + 1);
 595                 out2 = RTE_PTR_ADD(out1, (k >> 3) + 1);
 596         } else {
 597                 out0 = (uint8_t *)mbuf_append(m_out_head, m_out,
 598                                 (k >> 3) * 3 + 2);
 599                 if (out0 == NULL) {
 600                         op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 601                         rte_bbdev_log(ERR,
 602                                         "Too little space in output mbuf");
 603                         return;
 604                 }
 605                 enc->output.length += (k >> 3) * 3 + 2;
 606                 /* rte_bbdev_op_data.offset can be different than the
 607                  * offset of the appended bytes
 608                  */
 609                 out0 = rte_pktmbuf_mtod_offset(m_out, uint8_t *, out_offset);
 610                 out1 = rte_pktmbuf_mtod_offset(m_out, uint8_t *,
 611                                 out_offset + (k >> 3) + 1);
 612                 out2 = rte_pktmbuf_mtod_offset(m_out, uint8_t *,
 613                                 out_offset + 2 * ((k >> 3) + 1));
 614         }
 615
 616         turbo_req.case_id = k_idx;
 617         turbo_req.input_win = in;
 618         turbo_req.length = k >> 3;
 619         turbo_resp.output_win_0 = out0;
 620         turbo_resp.output_win_1 = out1;
 621         turbo_resp.output_win_2 = out2;
 622
 623 #ifdef RTE_BBDEV_OFFLOAD_COST
 624         start_time = rte_rdtsc_precise();
 625 #endif
 626         /* Turbo encoding */
 627         if (bblib_turbo_encoder(&turbo_req, &turbo_resp) != 0) {
 628                 op->status |= 1 << RTE_BBDEV_DRV_ERROR;
 629                 rte_bbdev_log(ERR, "Turbo Encoder failed");
 630                 return;
 631         }
 632 #ifdef RTE_BBDEV_OFFLOAD_COST
 633         q_stats->acc_offload_cycles += rte_rdtsc_precise() - start_time;
 634 #endif
 635
 636         /* Restore 3 first bytes of next CB if they were overwritten by CRC*/
 637         if (first_3_bytes != 0)
 638                 *((uint64_t *)&in[(k - 32) >> 3]) = first_3_bytes;
 639
 640         /* Rate-matching */
 641         if (enc->op_flags & RTE_BBDEV_TURBO_RATE_MATCH) {
 642                 uint8_t mask_id;
 643                 /* Integer round up division by 8 */
 644                 uint16_t out_len = (e + 7) >> 3;
 645                 /* The mask array is indexed using E%8. E is an even number so
 646                  * there are only 4 possible values.
 647                  */
 648                 const uint8_t mask_out[] = {0xFF, 0xC0, 0xF0, 0xFC};
 649
 650                 /* get output data starting address */
 651                 rm_out = (uint8_t *)mbuf_append(m_out_head, m_out, out_len);
 652                 if (rm_out == NULL) {
 653                         op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 654                         rte_bbdev_log(ERR,
 655                                         "Too little space in output mbuf");
 656                         return;
 657                 }
 658                 /* rte_bbdev_op_data.offset can be different than the offset
 659                  * of the appended bytes
 660                  */
 661                 rm_out = rte_pktmbuf_mtod_offset(m_out, uint8_t *, out_offset);
 662
 663                 /* index of current code block */
 664                 rm_req.r = r;
 665                 /* total number of code block */
 666                 rm_req.C = c;
 667                 /* For DL - 1, UL - 0 */
 668                 rm_req.direction = 1;
 669                 /* According to 3ggp 36.212 Spec 5.1.4.1.2 section Nsoft, KMIMO
 670                  * and MDL_HARQ are used for Ncb calculation. As Ncb is already
 671                  * known we can adjust those parameters
 672                  */
 673                 rm_req.Nsoft = ncb * rm_req.C;
 674                 rm_req.KMIMO = 1;
 675                 rm_req.MDL_HARQ = 1;
 676                 /* According to 3ggp 36.212 Spec 5.1.4.1.2 section Nl, Qm and G
 677                  * are used for E calculation. As E is already known we can
 678                  * adjust those parameters
 679                  */
 680                 rm_req.NL = e;
 681                 rm_req.Qm = 1;
 682                 rm_req.G = rm_req.NL * rm_req.Qm * rm_req.C;
 683
 684                 rm_req.rvidx = enc->rv_index;
 685                 rm_req.Kidx = k_idx - 1;
 686                 rm_req.nLen = k + 4;
 687                 rm_req.tin0 = out0;
 688                 rm_req.tin1 = out1;
 689                 rm_req.tin2 = out2;
 690                 rm_resp.output = rm_out;
 691                 rm_resp.OutputLen = out_len;
 692                 if (enc->op_flags & RTE_BBDEV_TURBO_RV_INDEX_BYPASS)
 693                         rm_req.bypass_rvidx = 1;
 694                 else
 695                         rm_req.bypass_rvidx = 0;
 696
 697 #ifdef RTE_BBDEV_OFFLOAD_COST
 698                 start_time = rte_rdtsc_precise();
 699 #endif
 700                 /* Rate-Matching */
 701                 if (bblib_rate_match_dl(&rm_req, &rm_resp) != 0) {
 702                         op->status |= 1 << RTE_BBDEV_DRV_ERROR;
 703                         rte_bbdev_log(ERR, "Rate matching failed");
 704                         return;
 705                 }
 706 #ifdef RTE_BBDEV_OFFLOAD_COST
 707                 q_stats->acc_offload_cycles += rte_rdtsc_precise() - start_time;
 708 #endif
 709
 710                 /* SW fills an entire last byte even if E%8 != 0. Clear the
 711                  * superfluous data bits for consistency with HW device.
 712                  */
 713                 mask_id = (e & 7) >> 1;
 714                 rm_out[out_len - 1] &= mask_out[mask_id];
 715                 enc->output.length += rm_resp.OutputLen;
 716         } else {
 717                 /* Rate matching is bypassed */
 718
 719                 /* Completing last byte of out0 (where 4 tail bits are stored)
 720                  * by moving first 4 bits from out1
 721                  */
 722                 tmp_out = (uint8_t *) --out1;
 723                 *tmp_out = *tmp_out | ((*(tmp_out + 1) & 0xF0) >> 4);
 724                 tmp_out++;
 725                 /* Shifting out1 data by 4 bits to the left */
 726                 for (m = 0; m < k >> 3; ++m) {
 727                         uint8_t *first = tmp_out;
 728                         uint8_t second = *(tmp_out + 1);
 729                         *first = (*first << 4) | ((second & 0xF0) >> 4);
 730                         tmp_out++;
 731                 }
 732                 /* Shifting out2 data by 8 bits to the left */
 733                 for (m = 0; m < (k >> 3) + 1; ++m) {
 734                         *tmp_out = *(tmp_out + 1);
 735                         tmp_out++;
 736                 }
 737                 *tmp_out = 0;
 738         }
 739 #else
 740         RTE_SET_USED(q);
 741         RTE_SET_USED(op);
 742         RTE_SET_USED(r);
 743         RTE_SET_USED(c);
 744         RTE_SET_USED(k);
 745         RTE_SET_USED(ncb);
 746         RTE_SET_USED(e);
 747         RTE_SET_USED(m_in);
 748         RTE_SET_USED(m_out_head);
 749         RTE_SET_USED(m_out);
 750         RTE_SET_USED(in_offset);
 751         RTE_SET_USED(out_offset);
 752         RTE_SET_USED(in_length);
 753         RTE_SET_USED(q_stats);
 754 #endif
 755 }
 756
 757 static inline void
 758 enqueue_enc_one_op(struct turbo_sw_queue *q, struct rte_bbdev_enc_op *op,
 759                 struct rte_bbdev_stats *queue_stats)
 760 {
 761         uint8_t c, r, crc24_bits = 0;
 762         uint16_t k, ncb;
 763         uint32_t e;
 764         struct rte_bbdev_op_turbo_enc *enc = &op->turbo_enc;
 765         uint16_t in_offset = enc->input.offset;
 766         uint16_t out_offset = enc->output.offset;
 767         struct rte_mbuf *m_in = enc->input.data;
 768         struct rte_mbuf *m_out = enc->output.data;
 769         struct rte_mbuf *m_out_head = enc->output.data;
 770         uint32_t in_length, mbuf_total_left = enc->input.length;
 771         uint16_t seg_total_left;
 772
 773         /* Clear op status */
 774         op->status = 0;
 775
 776         if (mbuf_total_left > RTE_BBDEV_MAX_TB_SIZE >> 3) {
 777                 rte_bbdev_log(ERR, "TB size (%u) is too big, max: %d",
 778                                 mbuf_total_left, RTE_BBDEV_MAX_TB_SIZE);
 779                 op->status = 1 << RTE_BBDEV_DATA_ERROR;
 780                 return;
 781         }
 782
 783         if (m_in == NULL || m_out == NULL) {
 784                 rte_bbdev_log(ERR, "Invalid mbuf pointer");
 785                 op->status = 1 << RTE_BBDEV_DATA_ERROR;
 786                 return;
 787         }
 788
 789         if ((enc->op_flags & RTE_BBDEV_TURBO_CRC_24B_ATTACH) ||
 790                 (enc->op_flags & RTE_BBDEV_TURBO_CRC_24A_ATTACH))
 791                 crc24_bits = 24;
 792
 793         if (enc->code_block_mode == 0) { /* For Transport Block mode */
 794                 c = enc->tb_params.c;
 795                 r = enc->tb_params.r;
 796         } else {/* For Code Block mode */
 797                 c = 1;
 798                 r = 0;
 799         }
 800
 801         while (mbuf_total_left > 0 && r < c) {
 802
 803                 seg_total_left = rte_pktmbuf_data_len(m_in) - in_offset;
 804
 805                 if (enc->code_block_mode == 0) {
 806                         k = (r < enc->tb_params.c_neg) ?
 807                                 enc->tb_params.k_neg : enc->tb_params.k_pos;
 808                         ncb = (r < enc->tb_params.c_neg) ?
 809                                 enc->tb_params.ncb_neg : enc->tb_params.ncb_pos;
 810                         e = (r < enc->tb_params.cab) ?
 811                                 enc->tb_params.ea : enc->tb_params.eb;
 812                 } else {
 813                         k = enc->cb_params.k;
 814                         ncb = enc->cb_params.ncb;
 815                         e = enc->cb_params.e;
 816                 }
 817
 818                 process_enc_cb(q, op, r, c, k, ncb, e, m_in, m_out_head,
 819                                 m_out, in_offset, out_offset, seg_total_left,
 820                                 queue_stats);
 821                 /* Update total_left */
 822                 in_length = ((k - crc24_bits) >> 3);
 823                 mbuf_total_left -= in_length;
 824                 /* Update offsets for next CBs (if exist) */
 825                 in_offset += (k - crc24_bits) >> 3;
 826                 if (enc->op_flags & RTE_BBDEV_TURBO_RATE_MATCH)
 827                         out_offset += e >> 3;
 828                 else
 829                         out_offset += (k >> 3) * 3 + 2;
 830
 831                 /* Update offsets */
 832                 if (seg_total_left == in_length) {
 833                         /* Go to the next mbuf */
 834                         m_in = m_in->next;
 835                         m_out = m_out->next;
 836                         in_offset = 0;
 837                         out_offset = 0;
 838                 }
 839                 r++;
 840         }
 841
 842         /* check if all input data was processed */
 843         if (mbuf_total_left != 0) {
 844                 op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 845                 rte_bbdev_log(ERR,
 846                                 "Mismatch between mbuf length and included CBs sizes");
 847         }
 848 }
 849
 850 static inline uint16_t
 851 enqueue_enc_all_ops(struct turbo_sw_queue *q, struct rte_bbdev_enc_op **ops,
 852                 uint16_t nb_ops, struct rte_bbdev_stats *queue_stats)
 853 {
 854         uint16_t i;
 855 #ifdef RTE_BBDEV_OFFLOAD_COST
 856         queue_stats->acc_offload_cycles = 0;
 857 #endif
 858
 859         for (i = 0; i < nb_ops; ++i)
 860                 enqueue_enc_one_op(q, ops[i], queue_stats);
 861
 862         return rte_ring_enqueue_burst(q->processed_pkts, (void **)ops, nb_ops,
 863                         NULL);
 864 }
 865
 866 #ifdef RTE_BBDEV_SDK_AVX2
 867 static inline void
 868 move_padding_bytes(const uint8_t *in, uint8_t *out, uint16_t k,
 869                 uint16_t ncb)
 870 {
 871         uint16_t d = k + 4;
 872         uint16_t kpi = ncb / 3;
 873         uint16_t nd = kpi - d;
 874
 875         rte_memcpy(&out[nd], in, d);
 876         rte_memcpy(&out[nd + kpi + 64], &in[kpi], d);
 877         rte_memcpy(&out[(nd - 1) + 2 * (kpi + 64)], &in[2 * kpi], d);
 878 }
 879 #endif
 880
 881 static inline void
 882 process_dec_cb(struct turbo_sw_queue *q, struct rte_bbdev_dec_op *op,
 883                 uint8_t c, uint16_t k, uint16_t kw, struct rte_mbuf *m_in,
 884                 struct rte_mbuf *m_out_head, struct rte_mbuf *m_out,
 885                 uint16_t in_offset, uint16_t out_offset, bool check_crc_24b,
 886                 uint16_t crc24_overlap, uint16_t in_length,
 887                 struct rte_bbdev_stats *q_stats)
 888 {
 889 #ifdef RTE_BBDEV_SDK_AVX2
 890         int ret;
 891         int32_t k_idx;
 892         int32_t iter_cnt;
 893         uint8_t *in, *out, *adapter_input;
 894         int32_t ncb, ncb_without_null;
 895         struct bblib_turbo_adapter_ul_response adapter_resp;
 896         struct bblib_turbo_adapter_ul_request adapter_req;
 897         struct bblib_turbo_decoder_request turbo_req;
 898         struct bblib_turbo_decoder_response turbo_resp;
 899         struct rte_bbdev_op_turbo_dec *dec = &op->turbo_dec;
 900 #ifdef RTE_BBDEV_OFFLOAD_COST
 901         uint64_t start_time;
 902 #else
 903         RTE_SET_USED(q_stats);
 904 #endif
 905
 906         k_idx = compute_idx(k);
 907
 908         ret = is_dec_input_valid(k_idx, kw, in_length);
 909         if (ret != 0) {
 910                 op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 911                 return;
 912         }
 913
 914         in = rte_pktmbuf_mtod_offset(m_in, uint8_t *, in_offset);
 915         ncb = kw;
 916         ncb_without_null = (k + 4) * 3;
 917
 918         if (check_bit(dec->op_flags, RTE_BBDEV_TURBO_SUBBLOCK_DEINTERLEAVE)) {
 919                 struct bblib_deinterleave_ul_request deint_req;
 920                 struct bblib_deinterleave_ul_response deint_resp;
 921
 922                 deint_req.circ_buffer = BBLIB_FULL_CIRCULAR_BUFFER;
 923                 deint_req.pharqbuffer = in;
 924                 deint_req.ncb = ncb;
 925                 deint_resp.pinteleavebuffer = q->deint_output;
 926
 927 #ifdef RTE_BBDEV_OFFLOAD_COST
 928                 start_time = rte_rdtsc_precise();
 929 #endif
 930                 bblib_deinterleave_ul(&deint_req, &deint_resp);
 931 #ifdef RTE_BBDEV_OFFLOAD_COST
 932                 q_stats->acc_offload_cycles += rte_rdtsc_precise() - start_time;
 933 #endif
 934         } else
 935                 move_padding_bytes(in, q->deint_output, k, ncb);
 936
 937         adapter_input = q->deint_output;
 938
 939         if (dec->op_flags & RTE_BBDEV_TURBO_POS_LLR_1_BIT_IN)
 940                 adapter_req.isinverted = 1;
 941         else if (dec->op_flags & RTE_BBDEV_TURBO_NEG_LLR_1_BIT_IN)
 942                 adapter_req.isinverted = 0;
 943         else {
 944                 op->status |= 1 << RTE_BBDEV_DRV_ERROR;
 945                 rte_bbdev_log(ERR, "LLR format wasn't specified");
 946                 return;
 947         }
 948
 949         adapter_req.ncb = ncb_without_null;
 950         adapter_req.pinteleavebuffer = adapter_input;
 951         adapter_resp.pharqout = q->adapter_output;
 952
 953 #ifdef RTE_BBDEV_OFFLOAD_COST
 954         start_time = rte_rdtsc_precise();
 955 #endif
 956         /* Turbo decode adaptation */
 957         bblib_turbo_adapter_ul(&adapter_req, &adapter_resp);
 958 #ifdef RTE_BBDEV_OFFLOAD_COST
 959         q_stats->acc_offload_cycles += rte_rdtsc_precise() - start_time;
 960 #endif
 961
 962         out = (uint8_t *)mbuf_append(m_out_head, m_out,
 963                         ((k - crc24_overlap) >> 3));
 964         if (out == NULL) {
 965                 op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 966                 rte_bbdev_log(ERR, "Too little space in output mbuf");
 967                 return;
 968         }
 969         /* rte_bbdev_op_data.offset can be different than the offset of the
 970          * appended bytes
 971          */
 972         out = rte_pktmbuf_mtod_offset(m_out, uint8_t *, out_offset);
 973         if (check_crc_24b)
 974                 turbo_req.c = c + 1;
 975         else
 976                 turbo_req.c = c;
 977         turbo_req.input = (int8_t *)q->adapter_output;
 978         turbo_req.k = k;
 979         turbo_req.k_idx = k_idx;
 980         turbo_req.max_iter_num = dec->iter_max;
 981         turbo_req.early_term_disable = !check_bit(dec->op_flags,
 982                         RTE_BBDEV_TURBO_EARLY_TERMINATION);
 983         turbo_resp.ag_buf = q->ag;
 984         turbo_resp.cb_buf = q->code_block;
 985         turbo_resp.output = out;
 986
 987 #ifdef RTE_BBDEV_OFFLOAD_COST
 988         start_time = rte_rdtsc_precise();
 989 #endif
 990         /* Turbo decode */
 991         iter_cnt = bblib_turbo_decoder(&turbo_req, &turbo_resp);
 992 #ifdef RTE_BBDEV_OFFLOAD_COST
 993         q_stats->acc_offload_cycles += rte_rdtsc_precise() - start_time;
 994 #endif
 995         dec->hard_output.length += (k >> 3);
 996
 997         if (iter_cnt > 0) {
 998                 /* Temporary solution for returned iter_count from SDK */
 999                 iter_cnt = (iter_cnt - 1) >> 1;
1000                 dec->iter_count = RTE_MAX(iter_cnt, dec->iter_count);
1001         } else {
1002                 op->status |= 1 << RTE_BBDEV_DATA_ERROR;
1003                 rte_bbdev_log(ERR, "Turbo Decoder failed");
1004                 return;
1005         }
1006 #else
1007         RTE_SET_USED(q);
1008         RTE_SET_USED(op);
1009         RTE_SET_USED(c);
1010         RTE_SET_USED(k);
1011         RTE_SET_USED(kw);
1012         RTE_SET_USED(m_in);
1013         RTE_SET_USED(m_out_head);
1014         RTE_SET_USED(m_out);
1015         RTE_SET_USED(in_offset);
1016         RTE_SET_USED(out_offset);
1017         RTE_SET_USED(check_crc_24b);
1018         RTE_SET_USED(crc24_overlap);
1019         RTE_SET_USED(in_length);
1020         RTE_SET_USED(q_stats);
1021 #endif
1022 }
1023
1024 static inline void
1025 enqueue_dec_one_op(struct turbo_sw_queue *q, struct rte_bbdev_dec_op *op,
1026                 struct rte_bbdev_stats *queue_stats)
1027 {
1028         uint8_t c, r = 0;
1029         uint16_t kw, k = 0;
1030         uint16_t crc24_overlap = 0;
1031         struct rte_bbdev_op_turbo_dec *dec = &op->turbo_dec;
1032         struct rte_mbuf *m_in = dec->input.data;
1033         struct rte_mbuf *m_out = dec->hard_output.data;
1034         struct rte_mbuf *m_out_head = dec->hard_output.data;
1035         uint16_t in_offset = dec->input.offset;
1036         uint16_t out_offset = dec->hard_output.offset;
1037         uint32_t mbuf_total_left = dec->input.length;
1038         uint16_t seg_total_left;
1039
1040         /* Clear op status */
1041         op->status = 0;
1042
1043         if (m_in == NULL || m_out == NULL) {
1044                 rte_bbdev_log(ERR, "Invalid mbuf pointer");
1045                 op->status = 1 << RTE_BBDEV_DATA_ERROR;
1046                 return;
1047         }
1048
1049         if (dec->code_block_mode == 0) { /* For Transport Block mode */
1050                 c = dec->tb_params.c;
1051         } else { /* For Code Block mode */
1052                 k = dec->cb_params.k;
1053                 c = 1;
1054         }
1055
1056         if ((c > 1) && !check_bit(dec->op_flags,
1057                 RTE_BBDEV_TURBO_DEC_TB_CRC_24B_KEEP))
1058                 crc24_overlap = 24;
1059
1060         while (mbuf_total_left > 0) {
1061                 if (dec->code_block_mode == 0)
1062                         k = (r < dec->tb_params.c_neg) ?
1063                                 dec->tb_params.k_neg : dec->tb_params.k_pos;
1064
1065                 seg_total_left = rte_pktmbuf_data_len(m_in) - in_offset;
1066
1067                 /* Calculates circular buffer size (Kw).
1068                  * According to 3gpp 36.212 section 5.1.4.2
1069                  *   Kw = 3 * Kpi,
1070                  * where:
1071                  *   Kpi = nCol * nRow
1072                  * where nCol is 32 and nRow can be calculated from:
1073                  *   D =< nCol * nRow
1074                  * where D is the size of each output from turbo encoder block
1075                  * (k + 4).
1076                  */
1077                 kw = RTE_ALIGN_CEIL(k + 4, RTE_BBDEV_C_SUBBLOCK) * 3;
1078
1079                 process_dec_cb(q, op, c, k, kw, m_in, m_out_head, m_out,
1080                                 in_offset, out_offset, check_bit(dec->op_flags,
1081                                 RTE_BBDEV_TURBO_CRC_TYPE_24B), crc24_overlap,
1082                                 seg_total_left, queue_stats);
1083                 /* To keep CRC24 attached to end of Code block, use
1084                  * RTE_BBDEV_TURBO_DEC_TB_CRC_24B_KEEP flag as it
1085                  * removed by default once verified.
1086                  */
1087
1088                 mbuf_total_left -= kw;
1089
1090                 /* Update offsets */
1091                 if (seg_total_left == kw) {
1092                         /* Go to the next mbuf */
1093                         m_in = m_in->next;
1094                         m_out = m_out->next;
1095                         in_offset = 0;
1096                         out_offset = 0;
1097                 } else {
1098                         /* Update offsets for next CBs (if exist) */
1099                         in_offset += kw;
1100                         out_offset += ((k - crc24_overlap) >> 3);
1101                 }
1102                 r++;
1103         }
1104         if (mbuf_total_left != 0) {
1105                 op->status |= 1 << RTE_BBDEV_DATA_ERROR;
1106                 rte_bbdev_log(ERR,
1107                                 "Mismatch between mbuf length and included Circular buffer sizes");
1108         }
1109 }
1110
1111 static inline uint16_t
1112 enqueue_dec_all_ops(struct turbo_sw_queue *q, struct rte_bbdev_dec_op **ops,
1113                 uint16_t nb_ops, struct rte_bbdev_stats *queue_stats)
1114 {
1115         uint16_t i;
1116 #ifdef RTE_BBDEV_OFFLOAD_COST
1117         queue_stats->acc_offload_cycles = 0;
1118 #endif
1119
1120         for (i = 0; i < nb_ops; ++i)
1121                 enqueue_dec_one_op(q, ops[i], queue_stats);
1122
1123         return rte_ring_enqueue_burst(q->processed_pkts, (void **)ops, nb_ops,
1124                         NULL);
1125 }
1126
1127 /* Enqueue burst */
1128 static uint16_t
1129 enqueue_enc_ops(struct rte_bbdev_queue_data *q_data,
1130                 struct rte_bbdev_enc_op **ops, uint16_t nb_ops)
1131 {
1132         void *queue = q_data->queue_private;
1133         struct turbo_sw_queue *q = queue;
1134         uint16_t nb_enqueued = 0;
1135
1136         nb_enqueued = enqueue_enc_all_ops(q, ops, nb_ops, &q_data->queue_stats);
1137
1138         q_data->queue_stats.enqueue_err_count += nb_ops - nb_enqueued;
1139         q_data->queue_stats.enqueued_count += nb_enqueued;
1140
1141         return nb_enqueued;
1142 }
1143
1144 /* Enqueue burst */
1145 static uint16_t
1146 enqueue_dec_ops(struct rte_bbdev_queue_data *q_data,
1147                  struct rte_bbdev_dec_op **ops, uint16_t nb_ops)
1148 {
1149         void *queue = q_data->queue_private;
1150         struct turbo_sw_queue *q = queue;
1151         uint16_t nb_enqueued = 0;
1152
1153         nb_enqueued = enqueue_dec_all_ops(q, ops, nb_ops, &q_data->queue_stats);
1154
1155         q_data->queue_stats.enqueue_err_count += nb_ops - nb_enqueued;
1156         q_data->queue_stats.enqueued_count += nb_enqueued;
1157
1158         return nb_enqueued;
1159 }
1160
1161 /* Dequeue decode burst */
1162 static uint16_t
1163 dequeue_dec_ops(struct rte_bbdev_queue_data *q_data,
1164                 struct rte_bbdev_dec_op **ops, uint16_t nb_ops)
1165 {
1166         struct turbo_sw_queue *q = q_data->queue_private;
1167         uint16_t nb_dequeued = rte_ring_dequeue_burst(q->processed_pkts,
1168                         (void **)ops, nb_ops, NULL);
1169         q_data->queue_stats.dequeued_count += nb_dequeued;
1170
1171         return nb_dequeued;
1172 }
1173
1174 /* Dequeue encode burst */
1175 static uint16_t
1176 dequeue_enc_ops(struct rte_bbdev_queue_data *q_data,
1177                 struct rte_bbdev_enc_op **ops, uint16_t nb_ops)
1178 {
1179         struct turbo_sw_queue *q = q_data->queue_private;
1180         uint16_t nb_dequeued = rte_ring_dequeue_burst(q->processed_pkts,
1181                         (void **)ops, nb_ops, NULL);
1182         q_data->queue_stats.dequeued_count += nb_dequeued;
1183
1184         return nb_dequeued;
1185 }
1186
1187 /* Parse 16bit integer from string argument */
1188 static inline int
1189 parse_u16_arg(const char *key, const char *value, void *extra_args)
1190 {
1191         uint16_t *u16 = extra_args;
1192         unsigned int long result;
1193
1194         if ((value == NULL) || (extra_args == NULL))
1195                 return -EINVAL;
1196         errno = 0;
1197         result = strtoul(value, NULL, 0);
1198         if ((result >= (1 << 16)) || (errno != 0)) {
1199                 rte_bbdev_log(ERR, "Invalid value %lu for %s", result, key);
1200                 return -ERANGE;
1201         }
1202         *u16 = (uint16_t)result;
1203         return 0;
1204 }
1205
1206 /* Parse parameters used to create device */
1207 static int
1208 parse_turbo_sw_params(struct turbo_sw_params *params, const char *input_args)
1209 {
1210         struct rte_kvargs *kvlist = NULL;
1211         int ret = 0;
1212
1213         if (params == NULL)
1214                 return -EINVAL;
1215         if (input_args) {
1216                 kvlist = rte_kvargs_parse(input_args, turbo_sw_valid_params);
1217                 if (kvlist == NULL)
1218                         return -EFAULT;
1219
1220                 ret = rte_kvargs_process(kvlist, turbo_sw_valid_params[0],
1221                                         &parse_u16_arg, &params->queues_num);
1222                 if (ret < 0)
1223                         goto exit;
1224
1225                 ret = rte_kvargs_process(kvlist, turbo_sw_valid_params[1],
1226                                         &parse_u16_arg, &params->socket_id);
1227                 if (ret < 0)
1228                         goto exit;
1229
1230                 if (params->socket_id >= RTE_MAX_NUMA_NODES) {
1231                         rte_bbdev_log(ERR, "Invalid socket, must be < %u",
1232                                         RTE_MAX_NUMA_NODES);
1233                         goto exit;
1234                 }
1235         }
1236
1237 exit:
1238         if (kvlist)
1239                 rte_kvargs_free(kvlist);
1240         return ret;
1241 }
1242
1243 /* Create device */
1244 static int
1245 turbo_sw_bbdev_create(struct rte_vdev_device *vdev,
1246                 struct turbo_sw_params *init_params)
1247 {
1248         struct rte_bbdev *bbdev;
1249         const char *name = rte_vdev_device_name(vdev);
1250
1251         bbdev = rte_bbdev_allocate(name);
1252         if (bbdev == NULL)
1253                 return -ENODEV;
1254
1255         bbdev->data->dev_private = rte_zmalloc_socket(name,
1256                         sizeof(struct bbdev_private), RTE_CACHE_LINE_SIZE,
1257                         init_params->socket_id);
1258         if (bbdev->data->dev_private == NULL) {
1259                 rte_bbdev_release(bbdev);
1260                 return -ENOMEM;
1261         }
1262
1263         bbdev->dev_ops = &pmd_ops;
1264         bbdev->device = &vdev->device;
1265         bbdev->data->socket_id = init_params->socket_id;
1266         bbdev->intr_handle = NULL;
1267
1268         /* register rx/tx burst functions for data path */
1269         bbdev->dequeue_enc_ops = dequeue_enc_ops;
1270         bbdev->dequeue_dec_ops = dequeue_dec_ops;
1271         bbdev->enqueue_enc_ops = enqueue_enc_ops;
1272         bbdev->enqueue_dec_ops = enqueue_dec_ops;
1273         ((struct bbdev_private *) bbdev->data->dev_private)->max_nb_queues =
1274                         init_params->queues_num;
1275
1276         return 0;
1277 }
1278
1279 /* Initialise device */
1280 static int
1281 turbo_sw_bbdev_probe(struct rte_vdev_device *vdev)
1282 {
1283         struct turbo_sw_params init_params = {
1284                 rte_socket_id(),
1285                 RTE_BBDEV_DEFAULT_MAX_NB_QUEUES
1286         };
1287         const char *name;
1288         const char *input_args;
1289
1290         if (vdev == NULL)
1291                 return -EINVAL;
1292
1293         name = rte_vdev_device_name(vdev);
1294         if (name == NULL)
1295                 return -EINVAL;
1296         input_args = rte_vdev_device_args(vdev);
1297         parse_turbo_sw_params(&init_params, input_args);
1298
1299         rte_bbdev_log_debug(
1300                         "Initialising %s on NUMA node %d with max queues: %d\n",
1301                         name, init_params.socket_id, init_params.queues_num);
1302
1303         return turbo_sw_bbdev_create(vdev, &init_params);
1304 }
1305
1306 /* Uninitialise device */
1307 static int
1308 turbo_sw_bbdev_remove(struct rte_vdev_device *vdev)
1309 {
1310         struct rte_bbdev *bbdev;
1311         const char *name;
1312
1313         if (vdev == NULL)
1314                 return -EINVAL;
1315
1316         name = rte_vdev_device_name(vdev);
1317         if (name == NULL)
1318                 return -EINVAL;
1319
1320         bbdev = rte_bbdev_get_named_dev(name);
1321         if (bbdev == NULL)
1322                 return -EINVAL;
1323
1324         rte_free(bbdev->data->dev_private);
1325
1326         return rte_bbdev_release(bbdev);
1327 }
1328
1329 static struct rte_vdev_driver bbdev_turbo_sw_pmd_drv = {
1330         .probe = turbo_sw_bbdev_probe,
1331         .remove = turbo_sw_bbdev_remove
1332 };
1333
1334 RTE_PMD_REGISTER_VDEV(DRIVER_NAME, bbdev_turbo_sw_pmd_drv);
1335 RTE_PMD_REGISTER_PARAM_STRING(DRIVER_NAME,
1336         TURBO_SW_MAX_NB_QUEUES_ARG"=<int> "
1337         TURBO_SW_SOCKET_ID_ARG"=<int>");
1338 RTE_PMD_REGISTER_ALIAS(DRIVER_NAME, turbo_sw);
1339
1340 RTE_INIT(turbo_sw_bbdev_init_log)
1341 {
1342         bbdev_turbo_sw_logtype = rte_log_register("pmd.bb.turbo_sw");
1343         if (bbdev_turbo_sw_logtype >= 0)
1344                 rte_log_set_level(bbdev_turbo_sw_logtype, RTE_LOG_NOTICE);
1345 }