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
  13 #include <rte_bbdev.h>
  14 #include <rte_bbdev_pmd.h>
  15
  16 #include <phy_turbo.h>
  17 #include <phy_crc.h>
  18 #include <phy_rate_match.h>
  19 #include <divide.h>
  20
  21 #define DRIVER_NAME turbo_sw
  22
  23 /* Turbo SW PMD logging ID */
  24 static int bbdev_turbo_sw_logtype;
  25
  26 /* Helper macro for logging */
  27 #define rte_bbdev_log(level, fmt, ...) \
  28         rte_log(RTE_LOG_ ## level, bbdev_turbo_sw_logtype, fmt "\n", \
  29                 ##__VA_ARGS__)
  30
  31 #define rte_bbdev_log_debug(fmt, ...) \
  32         rte_bbdev_log(DEBUG, RTE_STR(__LINE__) ":%s() " fmt, __func__, \
  33                 ##__VA_ARGS__)
  34
  35 /* private data structure */
  36 struct bbdev_private {
  37         unsigned int max_nb_queues;  /**< Max number of queues */
  38 };
  39
  40 /*  Initialisation params structure that can be used by Turbo SW driver */
  41 struct turbo_sw_params {
  42         int socket_id;  /*< Turbo SW device socket */
  43         uint16_t queues_num;  /*< Turbo SW device queues number */
  44 };
  45
  46 /* Accecptable params for Turbo SW devices */
  47 #define TURBO_SW_MAX_NB_QUEUES_ARG  "max_nb_queues"
  48 #define TURBO_SW_SOCKET_ID_ARG      "socket_id"
  49
  50 static const char * const turbo_sw_valid_params[] = {
  51         TURBO_SW_MAX_NB_QUEUES_ARG,
  52         TURBO_SW_SOCKET_ID_ARG
  53 };
  54
  55 /* queue */
  56 struct turbo_sw_queue {
  57         /* Ring for processed (encoded/decoded) operations which are ready to
  58          * be dequeued.
  59          */
  60         struct rte_ring *processed_pkts;
  61         /* Stores input for turbo encoder (used when CRC attachment is
  62          * performed
  63          */
  64         uint8_t *enc_in;
  65         /* Stores output from turbo encoder */
  66         uint8_t *enc_out;
  67         /* Alpha gamma buf for bblib_turbo_decoder() function */
  68         int8_t *ag;
  69         /* Temp buf for bblib_turbo_decoder() function */
  70         uint16_t *code_block;
  71         /* Input buf for bblib_rate_dematching_lte() function */
  72         uint8_t *deint_input;
  73         /* Output buf for bblib_rate_dematching_lte() function */
  74         uint8_t *deint_output;
  75         /* Output buf for bblib_turbodec_adapter_lte() function */
  76         uint8_t *adapter_output;
  77         /* Operation type of this queue */
  78         enum rte_bbdev_op_type type;
  79 } __rte_cache_aligned;
  80
  81 /* Calculate index based on Table 5.1.3-3 from TS34.212 */
  82 static inline int32_t
  83 compute_idx(uint16_t k)
  84 {
  85         int32_t result = 0;
  86
  87         if (k < RTE_BBDEV_MIN_CB_SIZE || k > RTE_BBDEV_MAX_CB_SIZE)
  88                 return -1;
  89
  90         if (k > 2048) {
  91                 if ((k - 2048) % 64 != 0)
  92                         result = -1;
  93
  94                 result = 124 + (k - 2048) / 64;
  95         } else if (k <= 512) {
  96                 if ((k - 40) % 8 != 0)
  97                         result = -1;
  98
  99                 result = (k - 40) / 8 + 1;
 100         } else if (k <= 1024) {
 101                 if ((k - 512) % 16 != 0)
 102                         result = -1;
 103
 104                 result = 60 + (k - 512) / 16;
 105         } else { /* 1024 < k <= 2048 */
 106                 if ((k - 1024) % 32 != 0)
 107                         result = -1;
 108
 109                 result = 92 + (k - 1024) / 32;
 110         }
 111
 112         return result;
 113 }
 114
 115 /* Read flag value 0/1 from bitmap */
 116 static inline bool
 117 check_bit(uint32_t bitmap, uint32_t bitmask)
 118 {
 119         return bitmap & bitmask;
 120 }
 121
 122 /* Get device info */
 123 static void
 124 info_get(struct rte_bbdev *dev, struct rte_bbdev_driver_info *dev_info)
 125 {
 126         struct bbdev_private *internals = dev->data->dev_private;
 127
 128         static const struct rte_bbdev_op_cap bbdev_capabilities[] = {
 129                 {
 130                         .type = RTE_BBDEV_OP_TURBO_DEC,
 131                         .cap.turbo_dec = {
 132                                 .capability_flags =
 133                                         RTE_BBDEV_TURBO_SUBBLOCK_DEINTERLEAVE |
 134                                         RTE_BBDEV_TURBO_POS_LLR_1_BIT_IN |
 135                                         RTE_BBDEV_TURBO_NEG_LLR_1_BIT_IN |
 136                                         RTE_BBDEV_TURBO_CRC_TYPE_24B |
 137                                         RTE_BBDEV_TURBO_EARLY_TERMINATION,
 138                                 .num_buffers_src = RTE_BBDEV_MAX_CODE_BLOCKS,
 139                                 .num_buffers_hard_out =
 140                                                 RTE_BBDEV_MAX_CODE_BLOCKS,
 141                                 .num_buffers_soft_out = 0,
 142                         }
 143                 },
 144                 {
 145                         .type   = RTE_BBDEV_OP_TURBO_ENC,
 146                         .cap.turbo_enc = {
 147                                 .capability_flags =
 148                                                 RTE_BBDEV_TURBO_CRC_24B_ATTACH |
 149                                                 RTE_BBDEV_TURBO_CRC_24A_ATTACH |
 150                                                 RTE_BBDEV_TURBO_RATE_MATCH |
 151                                                 RTE_BBDEV_TURBO_RV_INDEX_BYPASS,
 152                                 .num_buffers_src = RTE_BBDEV_MAX_CODE_BLOCKS,
 153                                 .num_buffers_dst = RTE_BBDEV_MAX_CODE_BLOCKS,
 154                         }
 155                 },
 156                 RTE_BBDEV_END_OF_CAPABILITIES_LIST()
 157         };
 158
 159         static struct rte_bbdev_queue_conf default_queue_conf = {
 160                 .queue_size = RTE_BBDEV_QUEUE_SIZE_LIMIT,
 161         };
 162
 163         static const enum rte_cpu_flag_t cpu_flag = RTE_CPUFLAG_SSE4_2;
 164
 165         default_queue_conf.socket = dev->data->socket_id;
 166
 167         dev_info->driver_name = RTE_STR(DRIVER_NAME);
 168         dev_info->max_num_queues = internals->max_nb_queues;
 169         dev_info->queue_size_lim = RTE_BBDEV_QUEUE_SIZE_LIMIT;
 170         dev_info->hardware_accelerated = false;
 171         dev_info->max_queue_priority = 0;
 172         dev_info->default_queue_conf = default_queue_conf;
 173         dev_info->capabilities = bbdev_capabilities;
 174         dev_info->cpu_flag_reqs = &cpu_flag;
 175         dev_info->min_alignment = 64;
 176
 177         rte_bbdev_log_debug("got device info from %u\n", dev->data->dev_id);
 178 }
 179
 180 /* Release queue */
 181 static int
 182 q_release(struct rte_bbdev *dev, uint16_t q_id)
 183 {
 184         struct turbo_sw_queue *q = dev->data->queues[q_id].queue_private;
 185
 186         if (q != NULL) {
 187                 rte_ring_free(q->processed_pkts);
 188                 rte_free(q->enc_out);
 189                 rte_free(q->enc_in);
 190                 rte_free(q->ag);
 191                 rte_free(q->code_block);
 192                 rte_free(q->deint_input);
 193                 rte_free(q->deint_output);
 194                 rte_free(q->adapter_output);
 195                 rte_free(q);
 196                 dev->data->queues[q_id].queue_private = NULL;
 197         }
 198
 199         rte_bbdev_log_debug("released device queue %u:%u",
 200                         dev->data->dev_id, q_id);
 201         return 0;
 202 }
 203
 204 /* Setup a queue */
 205 static int
 206 q_setup(struct rte_bbdev *dev, uint16_t q_id,
 207                 const struct rte_bbdev_queue_conf *queue_conf)
 208 {
 209         int ret;
 210         struct turbo_sw_queue *q;
 211         char name[RTE_RING_NAMESIZE];
 212
 213         /* Allocate the queue data structure. */
 214         q = rte_zmalloc_socket(RTE_STR(DRIVER_NAME), sizeof(*q),
 215                         RTE_CACHE_LINE_SIZE, queue_conf->socket);
 216         if (q == NULL) {
 217                 rte_bbdev_log(ERR, "Failed to allocate queue memory");
 218                 return -ENOMEM;
 219         }
 220
 221         /* Allocate memory for encoder output. */
 222         ret = snprintf(name, RTE_RING_NAMESIZE, RTE_STR(DRIVER_NAME)"_enc_out%u:%u",
 223                         dev->data->dev_id, q_id);
 224         if ((ret < 0) || (ret >= (int)RTE_RING_NAMESIZE)) {
 225                 rte_bbdev_log(ERR,
 226                                 "Creating queue name for device %u queue %u failed",
 227                                 dev->data->dev_id, q_id);
 228                 return -ENAMETOOLONG;
 229         }
 230         q->enc_out = rte_zmalloc_socket(name,
 231                         ((RTE_BBDEV_MAX_TB_SIZE >> 3) + 3) *
 232                         sizeof(*q->enc_out) * 3,
 233                         RTE_CACHE_LINE_SIZE, queue_conf->socket);
 234         if (q->enc_out == NULL) {
 235                 rte_bbdev_log(ERR,
 236                         "Failed to allocate queue memory for %s", name);
 237                 goto free_q;
 238         }
 239
 240         /* Allocate memory for rate matching output. */
 241         ret = snprintf(name, RTE_RING_NAMESIZE,
 242                         RTE_STR(DRIVER_NAME)"_enc_in%u:%u", dev->data->dev_id,
 243                         q_id);
 244         if ((ret < 0) || (ret >= (int)RTE_RING_NAMESIZE)) {
 245                 rte_bbdev_log(ERR,
 246                                 "Creating queue name for device %u queue %u failed",
 247                                 dev->data->dev_id, q_id);
 248                 return -ENAMETOOLONG;
 249         }
 250         q->enc_in = rte_zmalloc_socket(name,
 251                         (RTE_BBDEV_MAX_CB_SIZE >> 3) * sizeof(*q->enc_in),
 252                         RTE_CACHE_LINE_SIZE, queue_conf->socket);
 253         if (q->enc_in == NULL) {
 254                 rte_bbdev_log(ERR,
 255                         "Failed to allocate queue memory for %s", name);
 256                 goto free_q;
 257         }
 258
 259         /* Allocate memory for Aplha Gamma temp buffer. */
 260         ret = snprintf(name, RTE_RING_NAMESIZE, RTE_STR(DRIVER_NAME)"_ag%u:%u",
 261                         dev->data->dev_id, q_id);
 262         if ((ret < 0) || (ret >= (int)RTE_RING_NAMESIZE)) {
 263                 rte_bbdev_log(ERR,
 264                                 "Creating queue name for device %u queue %u failed",
 265                                 dev->data->dev_id, q_id);
 266                 return -ENAMETOOLONG;
 267         }
 268         q->ag = rte_zmalloc_socket(name,
 269                         RTE_BBDEV_MAX_CB_SIZE * 10 * sizeof(*q->ag),
 270                         RTE_CACHE_LINE_SIZE, queue_conf->socket);
 271         if (q->ag == NULL) {
 272                 rte_bbdev_log(ERR,
 273                         "Failed to allocate queue memory for %s", name);
 274                 goto free_q;
 275         }
 276
 277         /* Allocate memory for code block temp buffer. */
 278         ret = snprintf(name, RTE_RING_NAMESIZE, RTE_STR(DRIVER_NAME)"_cb%u:%u",
 279                         dev->data->dev_id, q_id);
 280         if ((ret < 0) || (ret >= (int)RTE_RING_NAMESIZE)) {
 281                 rte_bbdev_log(ERR,
 282                                 "Creating queue name for device %u queue %u failed",
 283                                 dev->data->dev_id, q_id);
 284                 return -ENAMETOOLONG;
 285         }
 286         q->code_block = rte_zmalloc_socket(name,
 287                         (6144 >> 3) * sizeof(*q->code_block),
 288                         RTE_CACHE_LINE_SIZE, queue_conf->socket);
 289         if (q->code_block == NULL) {
 290                 rte_bbdev_log(ERR,
 291                         "Failed to allocate queue memory for %s", name);
 292                 goto free_q;
 293         }
 294
 295         /* Allocate memory for Deinterleaver input. */
 296         ret = snprintf(name, RTE_RING_NAMESIZE,
 297                         RTE_STR(DRIVER_NAME)"_deint_input%u:%u",
 298                         dev->data->dev_id, q_id);
 299         if ((ret < 0) || (ret >= (int)RTE_RING_NAMESIZE)) {
 300                 rte_bbdev_log(ERR,
 301                                 "Creating queue name for device %u queue %u failed",
 302                                 dev->data->dev_id, q_id);
 303                 return -ENAMETOOLONG;
 304         }
 305         q->deint_input = rte_zmalloc_socket(name,
 306                         RTE_BBDEV_MAX_KW * sizeof(*q->deint_input),
 307                         RTE_CACHE_LINE_SIZE, queue_conf->socket);
 308         if (q->deint_input == NULL) {
 309                 rte_bbdev_log(ERR,
 310                         "Failed to allocate queue memory for %s", name);
 311                 goto free_q;
 312         }
 313
 314         /* Allocate memory for Deinterleaver output. */
 315         ret = snprintf(name, RTE_RING_NAMESIZE,
 316                         RTE_STR(DRIVER_NAME)"_deint_output%u:%u",
 317                         dev->data->dev_id, q_id);
 318         if ((ret < 0) || (ret >= (int)RTE_RING_NAMESIZE)) {
 319                 rte_bbdev_log(ERR,
 320                                 "Creating queue name for device %u queue %u failed",
 321                                 dev->data->dev_id, q_id);
 322                 return -ENAMETOOLONG;
 323         }
 324         q->deint_output = rte_zmalloc_socket(NULL,
 325                         RTE_BBDEV_MAX_KW * sizeof(*q->deint_output),
 326                         RTE_CACHE_LINE_SIZE, queue_conf->socket);
 327         if (q->deint_output == NULL) {
 328                 rte_bbdev_log(ERR,
 329                         "Failed to allocate queue memory for %s", name);
 330                 goto free_q;
 331         }
 332
 333         /* Allocate memory for Adapter output. */
 334         ret = snprintf(name, RTE_RING_NAMESIZE,
 335                         RTE_STR(DRIVER_NAME)"_adapter_output%u:%u",
 336                         dev->data->dev_id, q_id);
 337         if ((ret < 0) || (ret >= (int)RTE_RING_NAMESIZE)) {
 338                 rte_bbdev_log(ERR,
 339                                 "Creating queue name for device %u queue %u failed",
 340                                 dev->data->dev_id, q_id);
 341                 return -ENAMETOOLONG;
 342         }
 343         q->adapter_output = rte_zmalloc_socket(NULL,
 344                         RTE_BBDEV_MAX_CB_SIZE * 6 * sizeof(*q->adapter_output),
 345                         RTE_CACHE_LINE_SIZE, queue_conf->socket);
 346         if (q->adapter_output == NULL) {
 347                 rte_bbdev_log(ERR,
 348                         "Failed to allocate queue memory for %s", name);
 349                 goto free_q;
 350         }
 351
 352         /* Create ring for packets awaiting to be dequeued. */
 353         ret = snprintf(name, RTE_RING_NAMESIZE, RTE_STR(DRIVER_NAME)"%u:%u",
 354                         dev->data->dev_id, q_id);
 355         if ((ret < 0) || (ret >= (int)RTE_RING_NAMESIZE)) {
 356                 rte_bbdev_log(ERR,
 357                                 "Creating queue name for device %u queue %u failed",
 358                                 dev->data->dev_id, q_id);
 359                 return -ENAMETOOLONG;
 360         }
 361         q->processed_pkts = rte_ring_create(name, queue_conf->queue_size,
 362                         queue_conf->socket, RING_F_SP_ENQ | RING_F_SC_DEQ);
 363         if (q->processed_pkts == NULL) {
 364                 rte_bbdev_log(ERR, "Failed to create ring for %s", name);
 365                 goto free_q;
 366         }
 367
 368         q->type = queue_conf->op_type;
 369
 370         dev->data->queues[q_id].queue_private = q;
 371         rte_bbdev_log_debug("setup device queue %s", name);
 372         return 0;
 373
 374 free_q:
 375         rte_ring_free(q->processed_pkts);
 376         rte_free(q->enc_out);
 377         rte_free(q->enc_in);
 378         rte_free(q->ag);
 379         rte_free(q->code_block);
 380         rte_free(q->deint_input);
 381         rte_free(q->deint_output);
 382         rte_free(q->adapter_output);
 383         rte_free(q);
 384         return -EFAULT;
 385 }
 386
 387 static const struct rte_bbdev_ops pmd_ops = {
 388         .info_get = info_get,
 389         .queue_setup = q_setup,
 390         .queue_release = q_release
 391 };
 392
 393 /* Checks if the encoder input buffer is correct.
 394  * Returns 0 if it's valid, -1 otherwise.
 395  */
 396 static inline int
 397 is_enc_input_valid(const uint16_t k, const int32_t k_idx,
 398                 const uint16_t in_length)
 399 {
 400         if (k_idx < 0) {
 401                 rte_bbdev_log(ERR, "K Index is invalid");
 402                 return -1;
 403         }
 404
 405         if (in_length - (k >> 3) < 0) {
 406                 rte_bbdev_log(ERR,
 407                                 "Mismatch between input length (%u bytes) and K (%u bits)",
 408                                 in_length, k);
 409                 return -1;
 410         }
 411
 412         if (k > RTE_BBDEV_MAX_CB_SIZE) {
 413                 rte_bbdev_log(ERR, "CB size (%u) is too big, max: %d",
 414                                 k, RTE_BBDEV_MAX_CB_SIZE);
 415                 return -1;
 416         }
 417
 418         return 0;
 419 }
 420
 421 /* Checks if the decoder input buffer is correct.
 422  * Returns 0 if it's valid, -1 otherwise.
 423  */
 424 static inline int
 425 is_dec_input_valid(int32_t k_idx, int16_t kw, int16_t in_length)
 426 {
 427         if (k_idx < 0) {
 428                 rte_bbdev_log(ERR, "K index is invalid");
 429                 return -1;
 430         }
 431
 432         if (in_length - kw < 0) {
 433                 rte_bbdev_log(ERR,
 434                                 "Mismatch between input length (%u) and kw (%u)",
 435                                 in_length, kw);
 436                 return -1;
 437         }
 438
 439         if (kw > RTE_BBDEV_MAX_KW) {
 440                 rte_bbdev_log(ERR, "Input length (%u) is too big, max: %d",
 441                                 kw, RTE_BBDEV_MAX_KW);
 442                 return -1;
 443         }
 444
 445         return 0;
 446 }
 447
 448 static inline void
 449 process_enc_cb(struct turbo_sw_queue *q, struct rte_bbdev_enc_op *op,
 450                 uint8_t r, uint8_t c, uint16_t k, uint16_t ncb,
 451                 uint32_t e, struct rte_mbuf *m_in, struct rte_mbuf *m_out,
 452                 uint16_t in_offset, uint16_t out_offset, uint16_t total_left)
 453 {
 454         int ret;
 455         int16_t k_idx;
 456         uint16_t m;
 457         uint8_t *in, *out0, *out1, *out2, *tmp_out, *rm_out;
 458         uint64_t first_3_bytes = 0;
 459         struct rte_bbdev_op_turbo_enc *enc = &op->turbo_enc;
 460         struct bblib_crc_request crc_req;
 461         struct bblib_crc_response crc_resp;
 462         struct bblib_turbo_encoder_request turbo_req;
 463         struct bblib_turbo_encoder_response turbo_resp;
 464         struct bblib_rate_match_dl_request rm_req;
 465         struct bblib_rate_match_dl_response rm_resp;
 466
 467         k_idx = compute_idx(k);
 468         in = rte_pktmbuf_mtod_offset(m_in, uint8_t *, in_offset);
 469
 470         /* CRC24A (for TB) */
 471         if ((enc->op_flags & RTE_BBDEV_TURBO_CRC_24A_ATTACH) &&
 472                 (enc->code_block_mode == 1)) {
 473                 ret = is_enc_input_valid(k - 24, k_idx, total_left);
 474                 if (ret != 0) {
 475                         op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 476                         return;
 477                 }
 478                 crc_req.data = in;
 479                 crc_req.len = (k - 24) >> 3;
 480                 /* Check if there is a room for CRC bits. If not use
 481                  * the temporary buffer.
 482                  */
 483                 if (rte_pktmbuf_append(m_in, 3) == NULL) {
 484                         rte_memcpy(q->enc_in, in, (k - 24) >> 3);
 485                         in = q->enc_in;
 486                 } else {
 487                         /* Store 3 first bytes of next CB as they will be
 488                          * overwritten by CRC bytes. If it is the last CB then
 489                          * there is no point to store 3 next bytes and this
 490                          * if..else branch will be omitted.
 491                          */
 492                         first_3_bytes = *((uint64_t *)&in[(k - 32) >> 3]);
 493                 }
 494
 495                 crc_resp.data = in;
 496                 bblib_lte_crc24a_gen(&crc_req, &crc_resp);
 497         } else if (enc->op_flags & RTE_BBDEV_TURBO_CRC_24B_ATTACH) {
 498                 /* CRC24B */
 499                 ret = is_enc_input_valid(k - 24, k_idx, total_left);
 500                 if (ret != 0) {
 501                         op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 502                         return;
 503                 }
 504                 crc_req.data = in;
 505                 crc_req.len = (k - 24) >> 3;
 506                 /* Check if there is a room for CRC bits. If this is the last
 507                  * CB in TB. If not use temporary buffer.
 508                  */
 509                 if ((c - r == 1) && (rte_pktmbuf_append(m_in, 3) == NULL)) {
 510                         rte_memcpy(q->enc_in, in, (k - 24) >> 3);
 511                         in = q->enc_in;
 512                 } else if (c - r > 1) {
 513                         /* Store 3 first bytes of next CB as they will be
 514                          * overwritten by CRC bytes. If it is the last CB then
 515                          * there is no point to store 3 next bytes and this
 516                          * if..else branch will be omitted.
 517                          */
 518                         first_3_bytes = *((uint64_t *)&in[(k - 32) >> 3]);
 519                 }
 520
 521                 crc_resp.data = in;
 522                 bblib_lte_crc24b_gen(&crc_req, &crc_resp);
 523         } else {
 524                 ret = is_enc_input_valid(k, k_idx, total_left);
 525                 if (ret != 0) {
 526                         op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 527                         return;
 528                 }
 529         }
 530
 531         /* Turbo encoder */
 532
 533         /* Each bit layer output from turbo encoder is (k+4) bits long, i.e.
 534          * input length + 4 tail bits. That's (k/8) + 1 bytes after rounding up.
 535          * So dst_data's length should be 3*(k/8) + 3 bytes.
 536          * In Rate-matching bypass case outputs pointers passed to encoder
 537          * (out0, out1 and out2) can directly point to addresses of output from
 538          * turbo_enc entity.
 539          */
 540         if (enc->op_flags & RTE_BBDEV_TURBO_RATE_MATCH) {
 541                 out0 = q->enc_out;
 542                 out1 = RTE_PTR_ADD(out0, (k >> 3) + 1);
 543                 out2 = RTE_PTR_ADD(out1, (k >> 3) + 1);
 544         } else {
 545                 out0 = (uint8_t *)rte_pktmbuf_append(m_out, (k >> 3) * 3 + 2);
 546                 if (out0 == NULL) {
 547                         op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 548                         rte_bbdev_log(ERR,
 549                                         "Too little space in output mbuf");
 550                         return;
 551                 }
 552                 enc->output.length += (k >> 3) * 3 + 2;
 553                 /* rte_bbdev_op_data.offset can be different than the
 554                  * offset of the appended bytes
 555                  */
 556                 out0 = rte_pktmbuf_mtod_offset(m_out, uint8_t *, out_offset);
 557                 out1 = rte_pktmbuf_mtod_offset(m_out, uint8_t *,
 558                                 out_offset + (k >> 3) + 1);
 559                 out2 = rte_pktmbuf_mtod_offset(m_out, uint8_t *,
 560                                 out_offset + 2 * ((k >> 3) + 1));
 561         }
 562
 563         turbo_req.case_id = k_idx;
 564         turbo_req.input_win = in;
 565         turbo_req.length = k >> 3;
 566         turbo_resp.output_win_0 = out0;
 567         turbo_resp.output_win_1 = out1;
 568         turbo_resp.output_win_2 = out2;
 569         if (bblib_turbo_encoder(&turbo_req, &turbo_resp) != 0) {
 570                 op->status |= 1 << RTE_BBDEV_DRV_ERROR;
 571                 rte_bbdev_log(ERR, "Turbo Encoder failed");
 572                 return;
 573         }
 574
 575         /* Restore 3 first bytes of next CB if they were overwritten by CRC*/
 576         if (first_3_bytes != 0)
 577                 *((uint64_t *)&in[(k - 32) >> 3]) = first_3_bytes;
 578
 579         /* Rate-matching */
 580         if (enc->op_flags & RTE_BBDEV_TURBO_RATE_MATCH) {
 581                 /* get output data starting address */
 582                 rm_out = (uint8_t *)rte_pktmbuf_append(m_out, (e >> 3));
 583                 if (rm_out == NULL) {
 584                         op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 585                         rte_bbdev_log(ERR,
 586                                         "Too little space in output mbuf");
 587                         return;
 588                 }
 589                 /* rte_bbdev_op_data.offset can be different than the offset
 590                  * of the appended bytes
 591                  */
 592                 rm_out = rte_pktmbuf_mtod_offset(m_out, uint8_t *, out_offset);
 593
 594                 /* index of current code block */
 595                 rm_req.r = r;
 596                 /* total number of code block */
 597                 rm_req.C = c;
 598                 /* For DL - 1, UL - 0 */
 599                 rm_req.direction = 1;
 600                 /* According to 3ggp 36.212 Spec 5.1.4.1.2 section Nsoft, KMIMO
 601                  * and MDL_HARQ are used for Ncb calculation. As Ncb is already
 602                  * known we can adjust those parameters
 603                  */
 604                 rm_req.Nsoft = ncb * rm_req.C;
 605                 rm_req.KMIMO = 1;
 606                 rm_req.MDL_HARQ = 1;
 607                 /* According to 3ggp 36.212 Spec 5.1.4.1.2 section Nl, Qm and G
 608                  * are used for E calculation. As E is already known we can
 609                  * adjust those parameters
 610                  */
 611                 rm_req.NL = e;
 612                 rm_req.Qm = 1;
 613                 rm_req.G = rm_req.NL * rm_req.Qm * rm_req.C;
 614
 615                 rm_req.rvidx = enc->rv_index;
 616                 rm_req.Kidx = k_idx - 1;
 617                 rm_req.nLen = k + 4;
 618                 rm_req.tin0 = out0;
 619                 rm_req.tin1 = out1;
 620                 rm_req.tin2 = out2;
 621                 rm_resp.output = rm_out;
 622                 rm_resp.OutputLen = (e >> 3);
 623                 if (enc->op_flags & RTE_BBDEV_TURBO_RV_INDEX_BYPASS)
 624                         rm_req.bypass_rvidx = 1;
 625                 else
 626                         rm_req.bypass_rvidx = 0;
 627
 628                 if (bblib_rate_match_dl(&rm_req, &rm_resp) != 0) {
 629                         op->status |= 1 << RTE_BBDEV_DRV_ERROR;
 630                         rte_bbdev_log(ERR, "Rate matching failed");
 631                         return;
 632                 }
 633                 enc->output.length += rm_resp.OutputLen;
 634         } else {
 635                 /* Rate matching is bypassed */
 636
 637                 /* Completing last byte of out0 (where 4 tail bits are stored)
 638                  * by moving first 4 bits from out1
 639                  */
 640                 tmp_out = (uint8_t *) --out1;
 641                 *tmp_out = *tmp_out | ((*(tmp_out + 1) & 0xF0) >> 4);
 642                 tmp_out++;
 643                 /* Shifting out1 data by 4 bits to the left */
 644                 for (m = 0; m < k >> 3; ++m) {
 645                         uint8_t *first = tmp_out;
 646                         uint8_t second = *(tmp_out + 1);
 647                         *first = (*first << 4) | ((second & 0xF0) >> 4);
 648                         tmp_out++;
 649                 }
 650                 /* Shifting out2 data by 8 bits to the left */
 651                 for (m = 0; m < (k >> 3) + 1; ++m) {
 652                         *tmp_out = *(tmp_out + 1);
 653                         tmp_out++;
 654                 }
 655                 *tmp_out = 0;
 656         }
 657 }
 658
 659 static inline void
 660 enqueue_enc_one_op(struct turbo_sw_queue *q, struct rte_bbdev_enc_op *op)
 661 {
 662         uint8_t c, r, crc24_bits = 0;
 663         uint16_t k, ncb;
 664         uint32_t e;
 665         struct rte_bbdev_op_turbo_enc *enc = &op->turbo_enc;
 666         uint16_t in_offset = enc->input.offset;
 667         uint16_t out_offset = enc->output.offset;
 668         struct rte_mbuf *m_in = enc->input.data;
 669         struct rte_mbuf *m_out = enc->output.data;
 670         uint16_t total_left = enc->input.length;
 671
 672         /* Clear op status */
 673         op->status = 0;
 674
 675         if (total_left > RTE_BBDEV_MAX_TB_SIZE >> 3) {
 676                 rte_bbdev_log(ERR, "TB size (%u) is too big, max: %d",
 677                                 total_left, RTE_BBDEV_MAX_TB_SIZE);
 678                 op->status = 1 << RTE_BBDEV_DATA_ERROR;
 679                 return;
 680         }
 681
 682         if (m_in == NULL || m_out == NULL) {
 683                 rte_bbdev_log(ERR, "Invalid mbuf pointer");
 684                 op->status = 1 << RTE_BBDEV_DATA_ERROR;
 685                 return;
 686         }
 687
 688         if ((enc->op_flags & RTE_BBDEV_TURBO_CRC_24B_ATTACH) ||
 689                 (enc->op_flags & RTE_BBDEV_TURBO_CRC_24A_ATTACH))
 690                 crc24_bits = 24;
 691
 692         if (enc->code_block_mode == 0) { /* For Transport Block mode */
 693                 c = enc->tb_params.c;
 694                 r = enc->tb_params.r;
 695         } else {/* For Code Block mode */
 696                 c = 1;
 697                 r = 0;
 698         }
 699
 700         while (total_left > 0 && r < c) {
 701                 if (enc->code_block_mode == 0) {
 702                         k = (r < enc->tb_params.c_neg) ?
 703                                 enc->tb_params.k_neg : enc->tb_params.k_pos;
 704                         ncb = (r < enc->tb_params.c_neg) ?
 705                                 enc->tb_params.ncb_neg : enc->tb_params.ncb_pos;
 706                         e = (r < enc->tb_params.cab) ?
 707                                 enc->tb_params.ea : enc->tb_params.eb;
 708                 } else {
 709                         k = enc->cb_params.k;
 710                         ncb = enc->cb_params.ncb;
 711                         e = enc->cb_params.e;
 712                 }
 713
 714                 process_enc_cb(q, op, r, c, k, ncb, e, m_in,
 715                                 m_out, in_offset, out_offset, total_left);
 716                 /* Update total_left */
 717                 total_left -= (k - crc24_bits) >> 3;
 718                 /* Update offsets for next CBs (if exist) */
 719                 in_offset += (k - crc24_bits) >> 3;
 720                 if (enc->op_flags & RTE_BBDEV_TURBO_RATE_MATCH)
 721                         out_offset += e >> 3;
 722                 else
 723                         out_offset += (k >> 3) * 3 + 2;
 724                 r++;
 725         }
 726
 727         /* check if all input data was processed */
 728         if (total_left != 0) {
 729                 op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 730                 rte_bbdev_log(ERR,
 731                                 "Mismatch between mbuf length and included CBs sizes");
 732         }
 733 }
 734
 735 static inline uint16_t
 736 enqueue_enc_all_ops(struct turbo_sw_queue *q, struct rte_bbdev_enc_op **ops,
 737                 uint16_t nb_ops)
 738 {
 739         uint16_t i;
 740
 741         for (i = 0; i < nb_ops; ++i)
 742                 enqueue_enc_one_op(q, ops[i]);
 743
 744         return rte_ring_enqueue_burst(q->processed_pkts, (void **)ops, nb_ops,
 745                         NULL);
 746 }
 747
 748 /* Remove the padding bytes from a cyclic buffer.
 749  * The input buffer is a data stream wk as described in 3GPP TS 36.212 section
 750  * 5.1.4.1.2 starting from w0 and with length Ncb bytes.
 751  * The output buffer is a data stream wk with pruned padding bytes. It's length
 752  * is 3*D bytes and the order of non-padding bytes is preserved.
 753  */
 754 static inline void
 755 remove_nulls_from_circular_buf(const uint8_t *in, uint8_t *out, uint16_t k,
 756                 uint16_t ncb)
 757 {
 758         uint32_t in_idx, out_idx, c_idx;
 759         const uint32_t d = k + 4;
 760         const uint32_t kw = (ncb / 3);
 761         const uint32_t nd = kw - d;
 762         const uint32_t r_subblock = kw / RTE_BBDEV_C_SUBBLOCK;
 763         /* Inter-column permutation pattern */
 764         const uint32_t P[RTE_BBDEV_C_SUBBLOCK] = {0, 16, 8, 24, 4, 20, 12, 28,
 765                         2, 18, 10, 26, 6, 22, 14, 30, 1, 17, 9, 25, 5, 21, 13,
 766                         29, 3, 19, 11, 27, 7, 23, 15, 31};
 767         in_idx = 0;
 768         out_idx = 0;
 769
 770         /* The padding bytes are at the first Nd positions in the first row. */
 771         for (c_idx = 0; in_idx < kw; in_idx += r_subblock, ++c_idx) {
 772                 if (P[c_idx] < nd) {
 773                         rte_memcpy(&out[out_idx], &in[in_idx + 1],
 774                                         r_subblock - 1);
 775                         out_idx += r_subblock - 1;
 776                 } else {
 777                         rte_memcpy(&out[out_idx], &in[in_idx], r_subblock);
 778                         out_idx += r_subblock;
 779                 }
 780         }
 781
 782         /* First and second parity bits sub-blocks are interlaced. */
 783         for (c_idx = 0; in_idx < ncb - 2 * r_subblock;
 784                         in_idx += 2 * r_subblock, ++c_idx) {
 785                 uint32_t second_block_c_idx = P[c_idx];
 786                 uint32_t third_block_c_idx = P[c_idx] + 1;
 787
 788                 if (second_block_c_idx < nd && third_block_c_idx < nd) {
 789                         rte_memcpy(&out[out_idx], &in[in_idx + 2],
 790                                         2 * r_subblock - 2);
 791                         out_idx += 2 * r_subblock - 2;
 792                 } else if (second_block_c_idx >= nd &&
 793                                 third_block_c_idx >= nd) {
 794                         rte_memcpy(&out[out_idx], &in[in_idx], 2 * r_subblock);
 795                         out_idx += 2 * r_subblock;
 796                 } else if (second_block_c_idx < nd) {
 797                         out[out_idx++] = in[in_idx];
 798                         rte_memcpy(&out[out_idx], &in[in_idx + 2],
 799                                         2 * r_subblock - 2);
 800                         out_idx += 2 * r_subblock - 2;
 801                 } else {
 802                         rte_memcpy(&out[out_idx], &in[in_idx + 1],
 803                                         2 * r_subblock - 1);
 804                         out_idx += 2 * r_subblock - 1;
 805                 }
 806         }
 807
 808         /* Last interlaced row is different - its last byte is the only padding
 809          * byte. We can have from 2 up to 26 padding bytes (Nd) per sub-block.
 810          * After interlacing the 1st and 2nd parity sub-blocks we can have 0, 1
 811          * or 2 padding bytes each time we make a step of 2 * R_SUBBLOCK bytes
 812          * (moving to another column). 2nd parity sub-block uses the same
 813          * inter-column permutation pattern as the systematic and 1st parity
 814          * sub-blocks but it adds '1' to the resulting index and calculates the
 815          * modulus of the result and Kw. Last column is mapped to itself (id 31)
 816          * so the first byte taken from the 2nd parity sub-block will be the
 817          * 32nd (31+1) byte, then 64th etc. (step is C_SUBBLOCK == 32) and the
 818          * last byte will be the first byte from the sub-block:
 819          * (32 + 32 * (R_SUBBLOCK-1)) % Kw == Kw % Kw == 0. Nd can't  be smaller
 820          * than 2 so we know that bytes with ids 0 and 1 must be the padding
 821          * bytes. The bytes from the 1st parity sub-block are the bytes from the
 822          * 31st column - Nd can't be greater than 26 so we are sure that there
 823          * are no padding bytes in 31st column.
 824          */
 825         rte_memcpy(&out[out_idx], &in[in_idx], 2 * r_subblock - 1);
 826 }
 827
 828 static inline void
 829 move_padding_bytes(const uint8_t *in, uint8_t *out, uint16_t k,
 830                 uint16_t ncb)
 831 {
 832         uint16_t d = k + 4;
 833         uint16_t kpi = ncb / 3;
 834         uint16_t nd = kpi - d;
 835
 836         rte_memcpy(&out[nd], in, d);
 837         rte_memcpy(&out[nd + kpi + 64], &in[kpi], d);
 838         rte_memcpy(&out[nd + 2 * (kpi + 64)], &in[2 * kpi], d);
 839 }
 840
 841 static inline void
 842 process_dec_cb(struct turbo_sw_queue *q, struct rte_bbdev_dec_op *op,
 843                 uint8_t c, uint16_t k, uint16_t kw, struct rte_mbuf *m_in,
 844                 struct rte_mbuf *m_out, uint16_t in_offset, uint16_t out_offset,
 845                 bool check_crc_24b, uint16_t total_left)
 846 {
 847         int ret;
 848         int32_t k_idx;
 849         int32_t iter_cnt;
 850         uint8_t *in, *out, *adapter_input;
 851         int32_t ncb, ncb_without_null;
 852         struct bblib_turbo_adapter_ul_response adapter_resp;
 853         struct bblib_turbo_adapter_ul_request adapter_req;
 854         struct bblib_turbo_decoder_request turbo_req;
 855         struct bblib_turbo_decoder_response turbo_resp;
 856         struct rte_bbdev_op_turbo_dec *dec = &op->turbo_dec;
 857
 858         k_idx = compute_idx(k);
 859
 860         ret = is_dec_input_valid(k_idx, kw, total_left);
 861         if (ret != 0) {
 862                 op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 863                 return;
 864         }
 865
 866         in = rte_pktmbuf_mtod_offset(m_in, uint8_t *, in_offset);
 867         ncb = kw;
 868         ncb_without_null = (k + 4) * 3;
 869
 870         if (check_bit(dec->op_flags, RTE_BBDEV_TURBO_SUBBLOCK_DEINTERLEAVE)) {
 871                 struct bblib_deinterleave_ul_request deint_req;
 872                 struct bblib_deinterleave_ul_response deint_resp;
 873
 874                 /* SW decoder accepts only a circular buffer without NULL bytes
 875                  * so the input needs to be converted.
 876                  */
 877                 remove_nulls_from_circular_buf(in, q->deint_input, k, ncb);
 878
 879                 deint_req.pharqbuffer = q->deint_input;
 880                 deint_req.ncb = ncb_without_null;
 881                 deint_resp.pinteleavebuffer = q->deint_output;
 882                 bblib_deinterleave_ul(&deint_req, &deint_resp);
 883         } else
 884                 move_padding_bytes(in, q->deint_output, k, ncb);
 885
 886         adapter_input = q->deint_output;
 887
 888         if (dec->op_flags & RTE_BBDEV_TURBO_POS_LLR_1_BIT_IN)
 889                 adapter_req.isinverted = 1;
 890         else if (dec->op_flags & RTE_BBDEV_TURBO_NEG_LLR_1_BIT_IN)
 891                 adapter_req.isinverted = 0;
 892         else {
 893                 op->status |= 1 << RTE_BBDEV_DRV_ERROR;
 894                 rte_bbdev_log(ERR, "LLR format wasn't specified");
 895                 return;
 896         }
 897
 898         adapter_req.ncb = ncb_without_null;
 899         adapter_req.pinteleavebuffer = adapter_input;
 900         adapter_resp.pharqout = q->adapter_output;
 901         bblib_turbo_adapter_ul(&adapter_req, &adapter_resp);
 902
 903         out = (uint8_t *)rte_pktmbuf_append(m_out, (k >> 3));
 904         if (out == NULL) {
 905                 op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 906                 rte_bbdev_log(ERR, "Too little space in output mbuf");
 907                 return;
 908         }
 909         /* rte_bbdev_op_data.offset can be different than the offset of the
 910          * appended bytes
 911          */
 912         out = rte_pktmbuf_mtod_offset(m_out, uint8_t *, out_offset);
 913         if (check_crc_24b)
 914                 turbo_req.c = c + 1;
 915         else
 916                 turbo_req.c = c;
 917         turbo_req.input = (int8_t *)q->adapter_output;
 918         turbo_req.k = k;
 919         turbo_req.k_idx = k_idx;
 920         turbo_req.max_iter_num = dec->iter_max;
 921         turbo_resp.ag_buf = q->ag;
 922         turbo_resp.cb_buf = q->code_block;
 923         turbo_resp.output = out;
 924         iter_cnt = bblib_turbo_decoder(&turbo_req, &turbo_resp);
 925         dec->hard_output.length += (k >> 3);
 926
 927         if (iter_cnt > 0) {
 928                 /* Temporary solution for returned iter_count from SDK */
 929                 iter_cnt = (iter_cnt - 1) / 2;
 930                 dec->iter_count = RTE_MAX(iter_cnt, dec->iter_count);
 931         } else {
 932                 op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 933                 rte_bbdev_log(ERR, "Turbo Decoder failed");
 934                 return;
 935         }
 936 }
 937
 938 static inline void
 939 enqueue_dec_one_op(struct turbo_sw_queue *q, struct rte_bbdev_dec_op *op)
 940 {
 941         uint8_t c, r = 0;
 942         uint16_t kw, k = 0;
 943         struct rte_bbdev_op_turbo_dec *dec = &op->turbo_dec;
 944         struct rte_mbuf *m_in = dec->input.data;
 945         struct rte_mbuf *m_out = dec->hard_output.data;
 946         uint16_t in_offset = dec->input.offset;
 947         uint16_t total_left = dec->input.length;
 948         uint16_t out_offset = dec->hard_output.offset;
 949
 950         /* Clear op status */
 951         op->status = 0;
 952
 953         if (m_in == NULL || m_out == NULL) {
 954                 rte_bbdev_log(ERR, "Invalid mbuf pointer");
 955                 op->status = 1 << RTE_BBDEV_DATA_ERROR;
 956                 return;
 957         }
 958
 959         if (dec->code_block_mode == 0) { /* For Transport Block mode */
 960                 c = dec->tb_params.c;
 961         } else { /* For Code Block mode */
 962                 k = dec->cb_params.k;
 963                 c = 1;
 964         }
 965
 966         while (total_left > 0) {
 967                 if (dec->code_block_mode == 0)
 968                         k = (r < dec->tb_params.c_neg) ?
 969                                 dec->tb_params.k_neg : dec->tb_params.k_pos;
 970
 971                 /* Calculates circular buffer size (Kw).
 972                  * According to 3gpp 36.212 section 5.1.4.2
 973                  *   Kw = 3 * Kpi,
 974                  * where:
 975                  *   Kpi = nCol * nRow
 976                  * where nCol is 32 and nRow can be calculated from:
 977                  *   D =< nCol * nRow
 978                  * where D is the size of each output from turbo encoder block
 979                  * (k + 4).
 980                  */
 981                 kw = RTE_ALIGN_CEIL(k + 4, RTE_BBDEV_C_SUBBLOCK) * 3;
 982
 983                 process_dec_cb(q, op, c, k, kw, m_in, m_out, in_offset,
 984                                 out_offset, check_bit(dec->op_flags,
 985                                 RTE_BBDEV_TURBO_CRC_TYPE_24B), total_left);
 986                 /* As a result of decoding we get Code Block with included
 987                  * decoded CRC24 at the end of Code Block. Type of CRC24 is
 988                  * specified by flag.
 989                  */
 990
 991                 /* Update total_left */
 992                 total_left -= kw;
 993                 /* Update offsets for next CBs (if exist) */
 994                 in_offset += kw;
 995                 out_offset += (k >> 3);
 996                 r++;
 997         }
 998         if (total_left != 0) {
 999                 op->status |= 1 << RTE_BBDEV_DATA_ERROR;
1000                 rte_bbdev_log(ERR,
1001                                 "Mismatch between mbuf length and included Circular buffer sizes");
1002         }
1003 }
1004
1005 static inline uint16_t
1006 enqueue_dec_all_ops(struct turbo_sw_queue *q, struct rte_bbdev_dec_op **ops,
1007                 uint16_t nb_ops)
1008 {
1009         uint16_t i;
1010
1011         for (i = 0; i < nb_ops; ++i)
1012                 enqueue_dec_one_op(q, ops[i]);
1013
1014         return rte_ring_enqueue_burst(q->processed_pkts, (void **)ops, nb_ops,
1015                         NULL);
1016 }
1017
1018 /* Enqueue burst */
1019 static uint16_t
1020 enqueue_enc_ops(struct rte_bbdev_queue_data *q_data,
1021                 struct rte_bbdev_enc_op **ops, uint16_t nb_ops)
1022 {
1023         void *queue = q_data->queue_private;
1024         struct turbo_sw_queue *q = queue;
1025         uint16_t nb_enqueued = 0;
1026
1027         nb_enqueued = enqueue_enc_all_ops(q, ops, nb_ops);
1028
1029         q_data->queue_stats.enqueue_err_count += nb_ops - nb_enqueued;
1030         q_data->queue_stats.enqueued_count += nb_enqueued;
1031
1032         return nb_enqueued;
1033 }
1034
1035 /* Enqueue burst */
1036 static uint16_t
1037 enqueue_dec_ops(struct rte_bbdev_queue_data *q_data,
1038                  struct rte_bbdev_dec_op **ops, uint16_t nb_ops)
1039 {
1040         void *queue = q_data->queue_private;
1041         struct turbo_sw_queue *q = queue;
1042         uint16_t nb_enqueued = 0;
1043
1044         nb_enqueued = enqueue_dec_all_ops(q, ops, nb_ops);
1045
1046         q_data->queue_stats.enqueue_err_count += nb_ops - nb_enqueued;
1047         q_data->queue_stats.enqueued_count += nb_enqueued;
1048
1049         return nb_enqueued;
1050 }
1051
1052 /* Dequeue decode burst */
1053 static uint16_t
1054 dequeue_dec_ops(struct rte_bbdev_queue_data *q_data,
1055                 struct rte_bbdev_dec_op **ops, uint16_t nb_ops)
1056 {
1057         struct turbo_sw_queue *q = q_data->queue_private;
1058         uint16_t nb_dequeued = rte_ring_dequeue_burst(q->processed_pkts,
1059                         (void **)ops, nb_ops, NULL);
1060         q_data->queue_stats.dequeued_count += nb_dequeued;
1061
1062         return nb_dequeued;
1063 }
1064
1065 /* Dequeue encode burst */
1066 static uint16_t
1067 dequeue_enc_ops(struct rte_bbdev_queue_data *q_data,
1068                 struct rte_bbdev_enc_op **ops, uint16_t nb_ops)
1069 {
1070         struct turbo_sw_queue *q = q_data->queue_private;
1071         uint16_t nb_dequeued = rte_ring_dequeue_burst(q->processed_pkts,
1072                         (void **)ops, nb_ops, NULL);
1073         q_data->queue_stats.dequeued_count += nb_dequeued;
1074
1075         return nb_dequeued;
1076 }
1077
1078 /* Parse 16bit integer from string argument */
1079 static inline int
1080 parse_u16_arg(const char *key, const char *value, void *extra_args)
1081 {
1082         uint16_t *u16 = extra_args;
1083         unsigned int long result;
1084
1085         if ((value == NULL) || (extra_args == NULL))
1086                 return -EINVAL;
1087         errno = 0;
1088         result = strtoul(value, NULL, 0);
1089         if ((result >= (1 << 16)) || (errno != 0)) {
1090                 rte_bbdev_log(ERR, "Invalid value %lu for %s", result, key);
1091                 return -ERANGE;
1092         }
1093         *u16 = (uint16_t)result;
1094         return 0;
1095 }
1096
1097 /* Parse parameters used to create device */
1098 static int
1099 parse_turbo_sw_params(struct turbo_sw_params *params, const char *input_args)
1100 {
1101         struct rte_kvargs *kvlist = NULL;
1102         int ret = 0;
1103
1104         if (params == NULL)
1105                 return -EINVAL;
1106         if (input_args) {
1107                 kvlist = rte_kvargs_parse(input_args, turbo_sw_valid_params);
1108                 if (kvlist == NULL)
1109                         return -EFAULT;
1110
1111                 ret = rte_kvargs_process(kvlist, turbo_sw_valid_params[0],
1112                                         &parse_u16_arg, &params->queues_num);
1113                 if (ret < 0)
1114                         goto exit;
1115
1116                 ret = rte_kvargs_process(kvlist, turbo_sw_valid_params[1],
1117                                         &parse_u16_arg, &params->socket_id);
1118                 if (ret < 0)
1119                         goto exit;
1120
1121                 if (params->socket_id >= RTE_MAX_NUMA_NODES) {
1122                         rte_bbdev_log(ERR, "Invalid socket, must be < %u",
1123                                         RTE_MAX_NUMA_NODES);
1124                         goto exit;
1125                 }
1126         }
1127
1128 exit:
1129         if (kvlist)
1130                 rte_kvargs_free(kvlist);
1131         return ret;
1132 }
1133
1134 /* Create device */
1135 static int
1136 turbo_sw_bbdev_create(struct rte_vdev_device *vdev,
1137                 struct turbo_sw_params *init_params)
1138 {
1139         struct rte_bbdev *bbdev;
1140         const char *name = rte_vdev_device_name(vdev);
1141
1142         bbdev = rte_bbdev_allocate(name);
1143         if (bbdev == NULL)
1144                 return -ENODEV;
1145
1146         bbdev->data->dev_private = rte_zmalloc_socket(name,
1147                         sizeof(struct bbdev_private), RTE_CACHE_LINE_SIZE,
1148                         init_params->socket_id);
1149         if (bbdev->data->dev_private == NULL) {
1150                 rte_bbdev_release(bbdev);
1151                 return -ENOMEM;
1152         }
1153
1154         bbdev->dev_ops = &pmd_ops;
1155         bbdev->device = &vdev->device;
1156         bbdev->data->socket_id = init_params->socket_id;
1157         bbdev->intr_handle = NULL;
1158
1159         /* register rx/tx burst functions for data path */
1160         bbdev->dequeue_enc_ops = dequeue_enc_ops;
1161         bbdev->dequeue_dec_ops = dequeue_dec_ops;
1162         bbdev->enqueue_enc_ops = enqueue_enc_ops;
1163         bbdev->enqueue_dec_ops = enqueue_dec_ops;
1164         ((struct bbdev_private *) bbdev->data->dev_private)->max_nb_queues =
1165                         init_params->queues_num;
1166
1167         return 0;
1168 }
1169
1170 /* Initialise device */
1171 static int
1172 turbo_sw_bbdev_probe(struct rte_vdev_device *vdev)
1173 {
1174         struct turbo_sw_params init_params = {
1175                 rte_socket_id(),
1176                 RTE_BBDEV_DEFAULT_MAX_NB_QUEUES
1177         };
1178         const char *name;
1179         const char *input_args;
1180
1181         if (vdev == NULL)
1182                 return -EINVAL;
1183
1184         name = rte_vdev_device_name(vdev);
1185         if (name == NULL)
1186                 return -EINVAL;
1187         input_args = rte_vdev_device_args(vdev);
1188         parse_turbo_sw_params(&init_params, input_args);
1189
1190         rte_bbdev_log_debug(
1191                         "Initialising %s on NUMA node %d with max queues: %d\n",
1192                         name, init_params.socket_id, init_params.queues_num);
1193
1194         return turbo_sw_bbdev_create(vdev, &init_params);
1195 }
1196
1197 /* Uninitialise device */
1198 static int
1199 turbo_sw_bbdev_remove(struct rte_vdev_device *vdev)
1200 {
1201         struct rte_bbdev *bbdev;
1202         const char *name;
1203
1204         if (vdev == NULL)
1205                 return -EINVAL;
1206
1207         name = rte_vdev_device_name(vdev);
1208         if (name == NULL)
1209                 return -EINVAL;
1210
1211         bbdev = rte_bbdev_get_named_dev(name);
1212         if (bbdev == NULL)
1213                 return -EINVAL;
1214
1215         rte_free(bbdev->data->dev_private);
1216
1217         return rte_bbdev_release(bbdev);
1218 }
1219
1220 static struct rte_vdev_driver bbdev_turbo_sw_pmd_drv = {
1221         .probe = turbo_sw_bbdev_probe,
1222         .remove = turbo_sw_bbdev_remove
1223 };
1224
1225 RTE_PMD_REGISTER_VDEV(DRIVER_NAME, bbdev_turbo_sw_pmd_drv);
1226 RTE_PMD_REGISTER_PARAM_STRING(DRIVER_NAME,
1227         TURBO_SW_MAX_NB_QUEUES_ARG"=<int> "
1228         TURBO_SW_SOCKET_ID_ARG"=<int>");
1229
1230 RTE_INIT(null_bbdev_init_log);
1231 static void
1232 null_bbdev_init_log(void)
1233 {
1234         bbdev_turbo_sw_logtype = rte_log_register("pmd.bb.turbo_sw");
1235         if (bbdev_turbo_sw_logtype >= 0)
1236                 rte_log_set_level(bbdev_turbo_sw_logtype, RTE_LOG_NOTICE);
1237 }