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 /* Number of columns in sub-block interleaver (36.212, section 5.1.4.1.1) */
  36 #define C_SUBBLOCK (32)
  37 #define MAX_TB_SIZE (391656)
  38 #define MAX_CB_SIZE (6144)
  39 #define MAX_KW (18528)
  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 /* Calculate index based on Table 5.1.3-3 from TS34.212 */
  88 static inline int32_t
  89 compute_idx(uint16_t k)
  90 {
  91         int32_t result = 0;
  92
  93         if (k < 40 || k > MAX_CB_SIZE)
  94                 return -1;
  95
  96         if (k > 2048) {
  97                 if ((k - 2048) % 64 != 0)
  98                         result = -1;
  99
 100                 result = 124 + (k - 2048) / 64;
 101         } else if (k <= 512) {
 102                 if ((k - 40) % 8 != 0)
 103                         result = -1;
 104
 105                 result = (k - 40) / 8 + 1;
 106         } else if (k <= 1024) {
 107                 if ((k - 512) % 16 != 0)
 108                         result = -1;
 109
 110                 result = 60 + (k - 512) / 16;
 111         } else { /* 1024 < k <= 2048 */
 112                 if ((k - 1024) % 32 != 0)
 113                         result = -1;
 114
 115                 result = 92 + (k - 1024) / 32;
 116         }
 117
 118         return result;
 119 }
 120
 121 /* Read flag value 0/1 from bitmap */
 122 static inline bool
 123 check_bit(uint32_t bitmap, uint32_t bitmask)
 124 {
 125         return bitmap & bitmask;
 126 }
 127
 128 /* Get device info */
 129 static void
 130 info_get(struct rte_bbdev *dev, struct rte_bbdev_driver_info *dev_info)
 131 {
 132         struct bbdev_private *internals = dev->data->dev_private;
 133
 134         static const struct rte_bbdev_op_cap bbdev_capabilities[] = {
 135                 {
 136                         .type = RTE_BBDEV_OP_TURBO_DEC,
 137                         .cap.turbo_dec = {
 138                                 .capability_flags =
 139                                         RTE_BBDEV_TURBO_SUBBLOCK_DEINTERLEAVE |
 140                                         RTE_BBDEV_TURBO_POS_LLR_1_BIT_IN |
 141                                         RTE_BBDEV_TURBO_NEG_LLR_1_BIT_IN |
 142                                         RTE_BBDEV_TURBO_CRC_TYPE_24B |
 143                                         RTE_BBDEV_TURBO_EARLY_TERMINATION,
 144                                 .num_buffers_src = RTE_BBDEV_MAX_CODE_BLOCKS,
 145                                 .num_buffers_hard_out =
 146                                                 RTE_BBDEV_MAX_CODE_BLOCKS,
 147                                 .num_buffers_soft_out = 0,
 148                         }
 149                 },
 150                 {
 151                         .type   = RTE_BBDEV_OP_TURBO_ENC,
 152                         .cap.turbo_enc = {
 153                                 .capability_flags =
 154                                                 RTE_BBDEV_TURBO_CRC_24B_ATTACH |
 155                                                 RTE_BBDEV_TURBO_CRC_24A_ATTACH |
 156                                                 RTE_BBDEV_TURBO_RATE_MATCH |
 157                                                 RTE_BBDEV_TURBO_RV_INDEX_BYPASS,
 158                                 .num_buffers_src = RTE_BBDEV_MAX_CODE_BLOCKS,
 159                                 .num_buffers_dst = RTE_BBDEV_MAX_CODE_BLOCKS,
 160                         }
 161                 },
 162                 RTE_BBDEV_END_OF_CAPABILITIES_LIST()
 163         };
 164
 165         static struct rte_bbdev_queue_conf default_queue_conf = {
 166                 .queue_size = RTE_BBDEV_QUEUE_SIZE_LIMIT,
 167         };
 168
 169         static const enum rte_cpu_flag_t cpu_flag = RTE_CPUFLAG_SSE4_2;
 170
 171         default_queue_conf.socket = dev->data->socket_id;
 172
 173         dev_info->driver_name = RTE_STR(DRIVER_NAME);
 174         dev_info->max_num_queues = internals->max_nb_queues;
 175         dev_info->queue_size_lim = RTE_BBDEV_QUEUE_SIZE_LIMIT;
 176         dev_info->hardware_accelerated = false;
 177         dev_info->max_queue_priority = 0;
 178         dev_info->default_queue_conf = default_queue_conf;
 179         dev_info->capabilities = bbdev_capabilities;
 180         dev_info->cpu_flag_reqs = &cpu_flag;
 181         dev_info->min_alignment = 64;
 182
 183         rte_bbdev_log_debug("got device info from %u\n", dev->data->dev_id);
 184 }
 185
 186 /* Release queue */
 187 static int
 188 q_release(struct rte_bbdev *dev, uint16_t q_id)
 189 {
 190         struct turbo_sw_queue *q = dev->data->queues[q_id].queue_private;
 191
 192         if (q != NULL) {
 193                 rte_ring_free(q->processed_pkts);
 194                 rte_free(q->enc_out);
 195                 rte_free(q->enc_in);
 196                 rte_free(q->ag);
 197                 rte_free(q->code_block);
 198                 rte_free(q->deint_input);
 199                 rte_free(q->deint_output);
 200                 rte_free(q->adapter_output);
 201                 rte_free(q);
 202                 dev->data->queues[q_id].queue_private = NULL;
 203         }
 204
 205         rte_bbdev_log_debug("released device queue %u:%u",
 206                         dev->data->dev_id, q_id);
 207         return 0;
 208 }
 209
 210 /* Setup a queue */
 211 static int
 212 q_setup(struct rte_bbdev *dev, uint16_t q_id,
 213                 const struct rte_bbdev_queue_conf *queue_conf)
 214 {
 215         int ret;
 216         struct turbo_sw_queue *q;
 217         char name[RTE_RING_NAMESIZE];
 218
 219         /* Allocate the queue data structure. */
 220         q = rte_zmalloc_socket(RTE_STR(DRIVER_NAME), sizeof(*q),
 221                         RTE_CACHE_LINE_SIZE, queue_conf->socket);
 222         if (q == NULL) {
 223                 rte_bbdev_log(ERR, "Failed to allocate queue memory");
 224                 return -ENOMEM;
 225         }
 226
 227         /* Allocate memory for encoder output. */
 228         ret = snprintf(name, RTE_RING_NAMESIZE, RTE_STR(DRIVER_NAME)"_enc_out%u:%u",
 229                         dev->data->dev_id, q_id);
 230         if ((ret < 0) || (ret >= (int)RTE_RING_NAMESIZE)) {
 231                 rte_bbdev_log(ERR,
 232                                 "Creating queue name for device %u queue %u failed",
 233                                 dev->data->dev_id, q_id);
 234                 return -ENAMETOOLONG;
 235         }
 236         q->enc_out = rte_zmalloc_socket(name,
 237                         ((MAX_TB_SIZE >> 3) + 3) * sizeof(*q->enc_out) * 3,
 238                         RTE_CACHE_LINE_SIZE, queue_conf->socket);
 239         if (q->enc_out == NULL) {
 240                 rte_bbdev_log(ERR,
 241                         "Failed to allocate queue memory for %s", name);
 242                 goto free_q;
 243         }
 244
 245         /* Allocate memory for rate matching output. */
 246         ret = snprintf(name, RTE_RING_NAMESIZE,
 247                         RTE_STR(DRIVER_NAME)"_enc_in%u:%u", dev->data->dev_id,
 248                         q_id);
 249         if ((ret < 0) || (ret >= (int)RTE_RING_NAMESIZE)) {
 250                 rte_bbdev_log(ERR,
 251                                 "Creating queue name for device %u queue %u failed",
 252                                 dev->data->dev_id, q_id);
 253                 return -ENAMETOOLONG;
 254         }
 255         q->enc_in = rte_zmalloc_socket(name,
 256                         (MAX_CB_SIZE >> 3) * sizeof(*q->enc_in),
 257                         RTE_CACHE_LINE_SIZE, queue_conf->socket);
 258         if (q->enc_in == NULL) {
 259                 rte_bbdev_log(ERR,
 260                         "Failed to allocate queue memory for %s", name);
 261                 goto free_q;
 262         }
 263
 264         /* Allocate memory for Aplha Gamma temp buffer. */
 265         ret = snprintf(name, RTE_RING_NAMESIZE, RTE_STR(DRIVER_NAME)"_ag%u:%u",
 266                         dev->data->dev_id, q_id);
 267         if ((ret < 0) || (ret >= (int)RTE_RING_NAMESIZE)) {
 268                 rte_bbdev_log(ERR,
 269                                 "Creating queue name for device %u queue %u failed",
 270                                 dev->data->dev_id, q_id);
 271                 return -ENAMETOOLONG;
 272         }
 273         q->ag = rte_zmalloc_socket(name,
 274                         MAX_CB_SIZE * 10 * sizeof(*q->ag),
 275                         RTE_CACHE_LINE_SIZE, queue_conf->socket);
 276         if (q->ag == NULL) {
 277                 rte_bbdev_log(ERR,
 278                         "Failed to allocate queue memory for %s", name);
 279                 goto free_q;
 280         }
 281
 282         /* Allocate memory for code block temp buffer. */
 283         ret = snprintf(name, RTE_RING_NAMESIZE, RTE_STR(DRIVER_NAME)"_cb%u:%u",
 284                         dev->data->dev_id, q_id);
 285         if ((ret < 0) || (ret >= (int)RTE_RING_NAMESIZE)) {
 286                 rte_bbdev_log(ERR,
 287                                 "Creating queue name for device %u queue %u failed",
 288                                 dev->data->dev_id, q_id);
 289                 return -ENAMETOOLONG;
 290         }
 291         q->code_block = rte_zmalloc_socket(name,
 292                         (6144 >> 3) * sizeof(*q->code_block),
 293                         RTE_CACHE_LINE_SIZE, queue_conf->socket);
 294         if (q->code_block == NULL) {
 295                 rte_bbdev_log(ERR,
 296                         "Failed to allocate queue memory for %s", name);
 297                 goto free_q;
 298         }
 299
 300         /* Allocate memory for Deinterleaver input. */
 301         ret = snprintf(name, RTE_RING_NAMESIZE,
 302                         RTE_STR(DRIVER_NAME)"_deint_input%u:%u",
 303                         dev->data->dev_id, q_id);
 304         if ((ret < 0) || (ret >= (int)RTE_RING_NAMESIZE)) {
 305                 rte_bbdev_log(ERR,
 306                                 "Creating queue name for device %u queue %u failed",
 307                                 dev->data->dev_id, q_id);
 308                 return -ENAMETOOLONG;
 309         }
 310         q->deint_input = rte_zmalloc_socket(name,
 311                         MAX_KW * sizeof(*q->deint_input),
 312                         RTE_CACHE_LINE_SIZE, queue_conf->socket);
 313         if (q->deint_input == NULL) {
 314                 rte_bbdev_log(ERR,
 315                         "Failed to allocate queue memory for %s", name);
 316                 goto free_q;
 317         }
 318
 319         /* Allocate memory for Deinterleaver output. */
 320         ret = snprintf(name, RTE_RING_NAMESIZE,
 321                         RTE_STR(DRIVER_NAME)"_deint_output%u:%u",
 322                         dev->data->dev_id, q_id);
 323         if ((ret < 0) || (ret >= (int)RTE_RING_NAMESIZE)) {
 324                 rte_bbdev_log(ERR,
 325                                 "Creating queue name for device %u queue %u failed",
 326                                 dev->data->dev_id, q_id);
 327                 return -ENAMETOOLONG;
 328         }
 329         q->deint_output = rte_zmalloc_socket(NULL,
 330                         MAX_KW * sizeof(*q->deint_output),
 331                         RTE_CACHE_LINE_SIZE, queue_conf->socket);
 332         if (q->deint_output == NULL) {
 333                 rte_bbdev_log(ERR,
 334                         "Failed to allocate queue memory for %s", name);
 335                 goto free_q;
 336         }
 337
 338         /* Allocate memory for Adapter output. */
 339         ret = snprintf(name, RTE_RING_NAMESIZE,
 340                         RTE_STR(DRIVER_NAME)"_adapter_output%u:%u",
 341                         dev->data->dev_id, q_id);
 342         if ((ret < 0) || (ret >= (int)RTE_RING_NAMESIZE)) {
 343                 rte_bbdev_log(ERR,
 344                                 "Creating queue name for device %u queue %u failed",
 345                                 dev->data->dev_id, q_id);
 346                 return -ENAMETOOLONG;
 347         }
 348         q->adapter_output = rte_zmalloc_socket(NULL,
 349                         MAX_CB_SIZE * 6 * sizeof(*q->adapter_output),
 350                         RTE_CACHE_LINE_SIZE, queue_conf->socket);
 351         if (q->adapter_output == NULL) {
 352                 rte_bbdev_log(ERR,
 353                         "Failed to allocate queue memory for %s", name);
 354                 goto free_q;
 355         }
 356
 357         /* Create ring for packets awaiting to be dequeued. */
 358         ret = snprintf(name, RTE_RING_NAMESIZE, RTE_STR(DRIVER_NAME)"%u:%u",
 359                         dev->data->dev_id, q_id);
 360         if ((ret < 0) || (ret >= (int)RTE_RING_NAMESIZE)) {
 361                 rte_bbdev_log(ERR,
 362                                 "Creating queue name for device %u queue %u failed",
 363                                 dev->data->dev_id, q_id);
 364                 return -ENAMETOOLONG;
 365         }
 366         q->processed_pkts = rte_ring_create(name, queue_conf->queue_size,
 367                         queue_conf->socket, RING_F_SP_ENQ | RING_F_SC_DEQ);
 368         if (q->processed_pkts == NULL) {
 369                 rte_bbdev_log(ERR, "Failed to create ring for %s", name);
 370                 goto free_q;
 371         }
 372
 373         q->type = queue_conf->op_type;
 374
 375         dev->data->queues[q_id].queue_private = q;
 376         rte_bbdev_log_debug("setup device queue %s", name);
 377         return 0;
 378
 379 free_q:
 380         rte_ring_free(q->processed_pkts);
 381         rte_free(q->enc_out);
 382         rte_free(q->enc_in);
 383         rte_free(q->ag);
 384         rte_free(q->code_block);
 385         rte_free(q->deint_input);
 386         rte_free(q->deint_output);
 387         rte_free(q->adapter_output);
 388         rte_free(q);
 389         return -EFAULT;
 390 }
 391
 392 static const struct rte_bbdev_ops pmd_ops = {
 393         .info_get = info_get,
 394         .queue_setup = q_setup,
 395         .queue_release = q_release
 396 };
 397
 398 /* Checks if the encoder input buffer is correct.
 399  * Returns 0 if it's valid, -1 otherwise.
 400  */
 401 static inline int
 402 is_enc_input_valid(const uint16_t k, const int32_t k_idx,
 403                 const uint16_t in_length)
 404 {
 405         if (k_idx < 0) {
 406                 rte_bbdev_log(ERR, "K Index is invalid");
 407                 return -1;
 408         }
 409
 410         if (in_length - (k >> 3) < 0) {
 411                 rte_bbdev_log(ERR,
 412                                 "Mismatch between input length (%u bytes) and K (%u bits)",
 413                                 in_length, k);
 414                 return -1;
 415         }
 416
 417         if (k > MAX_CB_SIZE) {
 418                 rte_bbdev_log(ERR, "CB size (%u) is too big, max: %d",
 419                                 k, MAX_CB_SIZE);
 420                 return -1;
 421         }
 422
 423         return 0;
 424 }
 425
 426 /* Checks if the decoder input buffer is correct.
 427  * Returns 0 if it's valid, -1 otherwise.
 428  */
 429 static inline int
 430 is_dec_input_valid(int32_t k_idx, int16_t kw, int16_t in_length)
 431 {
 432         if (k_idx < 0) {
 433                 rte_bbdev_log(ERR, "K index is invalid");
 434                 return -1;
 435         }
 436
 437         if (in_length - kw < 0) {
 438                 rte_bbdev_log(ERR,
 439                                 "Mismatch between input length (%u) and kw (%u)",
 440                                 in_length, kw);
 441                 return -1;
 442         }
 443
 444         if (kw > MAX_KW) {
 445                 rte_bbdev_log(ERR, "Input length (%u) is too big, max: %d",
 446                                 kw, MAX_KW);
 447                 return -1;
 448         }
 449
 450         return 0;
 451 }
 452
 453 static inline void
 454 process_enc_cb(struct turbo_sw_queue *q, struct rte_bbdev_enc_op *op,
 455                 uint8_t r, uint8_t c, uint16_t k, uint16_t ncb,
 456                 uint32_t e, struct rte_mbuf *m_in, struct rte_mbuf *m_out,
 457                 uint16_t in_offset, uint16_t out_offset, uint16_t total_left)
 458 {
 459         int ret;
 460         int16_t k_idx;
 461         uint16_t m;
 462         uint8_t *in, *out0, *out1, *out2, *tmp_out, *rm_out;
 463         uint64_t first_3_bytes = 0;
 464         struct rte_bbdev_op_turbo_enc *enc = &op->turbo_enc;
 465         struct bblib_crc_request crc_req;
 466         struct bblib_crc_response crc_resp;
 467         struct bblib_turbo_encoder_request turbo_req;
 468         struct bblib_turbo_encoder_response turbo_resp;
 469         struct bblib_rate_match_dl_request rm_req;
 470         struct bblib_rate_match_dl_response rm_resp;
 471
 472         k_idx = compute_idx(k);
 473         in = rte_pktmbuf_mtod_offset(m_in, uint8_t *, in_offset);
 474
 475         /* CRC24A (for TB) */
 476         if ((enc->op_flags & RTE_BBDEV_TURBO_CRC_24A_ATTACH) &&
 477                 (enc->code_block_mode == 1)) {
 478                 ret = is_enc_input_valid(k - 24, k_idx, total_left);
 479                 if (ret != 0) {
 480                         op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 481                         return;
 482                 }
 483                 crc_req.data = in;
 484                 crc_req.len = (k - 24) >> 3;
 485                 /* Check if there is a room for CRC bits. If not use
 486                  * the temporary buffer.
 487                  */
 488                 if (rte_pktmbuf_append(m_in, 3) == NULL) {
 489                         rte_memcpy(q->enc_in, in, (k - 24) >> 3);
 490                         in = q->enc_in;
 491                 } else {
 492                         /* Store 3 first bytes of next CB as they will be
 493                          * overwritten by CRC bytes. If it is the last CB then
 494                          * there is no point to store 3 next bytes and this
 495                          * if..else branch will be omitted.
 496                          */
 497                         first_3_bytes = *((uint64_t *)&in[(k - 32) >> 3]);
 498                 }
 499
 500                 crc_resp.data = in;
 501                 bblib_lte_crc24a_gen(&crc_req, &crc_resp);
 502         } else if (enc->op_flags & RTE_BBDEV_TURBO_CRC_24B_ATTACH) {
 503                 /* CRC24B */
 504                 ret = is_enc_input_valid(k - 24, k_idx, total_left);
 505                 if (ret != 0) {
 506                         op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 507                         return;
 508                 }
 509                 crc_req.data = in;
 510                 crc_req.len = (k - 24) >> 3;
 511                 /* Check if there is a room for CRC bits. If this is the last
 512                  * CB in TB. If not use temporary buffer.
 513                  */
 514                 if ((c - r == 1) && (rte_pktmbuf_append(m_in, 3) == NULL)) {
 515                         rte_memcpy(q->enc_in, in, (k - 24) >> 3);
 516                         in = q->enc_in;
 517                 } else if (c - r > 1) {
 518                         /* Store 3 first bytes of next CB as they will be
 519                          * overwritten by CRC bytes. If it is the last CB then
 520                          * there is no point to store 3 next bytes and this
 521                          * if..else branch will be omitted.
 522                          */
 523                         first_3_bytes = *((uint64_t *)&in[(k - 32) >> 3]);
 524                 }
 525
 526                 crc_resp.data = in;
 527                 bblib_lte_crc24b_gen(&crc_req, &crc_resp);
 528         } else {
 529                 ret = is_enc_input_valid(k, k_idx, total_left);
 530                 if (ret != 0) {
 531                         op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 532                         return;
 533                 }
 534         }
 535
 536         /* Turbo encoder */
 537
 538         /* Each bit layer output from turbo encoder is (k+4) bits long, i.e.
 539          * input length + 4 tail bits. That's (k/8) + 1 bytes after rounding up.
 540          * So dst_data's length should be 3*(k/8) + 3 bytes.
 541          * In Rate-matching bypass case outputs pointers passed to encoder
 542          * (out0, out1 and out2) can directly point to addresses of output from
 543          * turbo_enc entity.
 544          */
 545         if (enc->op_flags & RTE_BBDEV_TURBO_RATE_MATCH) {
 546                 out0 = q->enc_out;
 547                 out1 = RTE_PTR_ADD(out0, (k >> 3) + 1);
 548                 out2 = RTE_PTR_ADD(out1, (k >> 3) + 1);
 549         } else {
 550                 out0 = (uint8_t *)rte_pktmbuf_append(m_out, (k >> 3) * 3 + 2);
 551                 if (out0 == NULL) {
 552                         op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 553                         rte_bbdev_log(ERR,
 554                                         "Too little space in output mbuf");
 555                         return;
 556                 }
 557                 enc->output.length += (k >> 3) * 3 + 2;
 558                 /* rte_bbdev_op_data.offset can be different than the
 559                  * offset of the appended bytes
 560                  */
 561                 out0 = rte_pktmbuf_mtod_offset(m_out, uint8_t *, out_offset);
 562                 out1 = rte_pktmbuf_mtod_offset(m_out, uint8_t *,
 563                                 out_offset + (k >> 3) + 1);
 564                 out2 = rte_pktmbuf_mtod_offset(m_out, uint8_t *,
 565                                 out_offset + 2 * ((k >> 3) + 1));
 566         }
 567
 568         turbo_req.case_id = k_idx;
 569         turbo_req.input_win = in;
 570         turbo_req.length = k >> 3;
 571         turbo_resp.output_win_0 = out0;
 572         turbo_resp.output_win_1 = out1;
 573         turbo_resp.output_win_2 = out2;
 574         if (bblib_turbo_encoder(&turbo_req, &turbo_resp) != 0) {
 575                 op->status |= 1 << RTE_BBDEV_DRV_ERROR;
 576                 rte_bbdev_log(ERR, "Turbo Encoder failed");
 577                 return;
 578         }
 579
 580         /* Restore 3 first bytes of next CB if they were overwritten by CRC*/
 581         if (first_3_bytes != 0)
 582                 *((uint64_t *)&in[(k - 32) >> 3]) = first_3_bytes;
 583
 584         /* Rate-matching */
 585         if (enc->op_flags & RTE_BBDEV_TURBO_RATE_MATCH) {
 586                 /* get output data starting address */
 587                 rm_out = (uint8_t *)rte_pktmbuf_append(m_out, (e >> 3));
 588                 if (rm_out == NULL) {
 589                         op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 590                         rte_bbdev_log(ERR,
 591                                         "Too little space in output mbuf");
 592                         return;
 593                 }
 594                 /* rte_bbdev_op_data.offset can be different than the offset
 595                  * of the appended bytes
 596                  */
 597                 rm_out = rte_pktmbuf_mtod_offset(m_out, uint8_t *, out_offset);
 598
 599                 /* index of current code block */
 600                 rm_req.r = r;
 601                 /* total number of code block */
 602                 rm_req.C = c;
 603                 /* For DL - 1, UL - 0 */
 604                 rm_req.direction = 1;
 605                 /* According to 3ggp 36.212 Spec 5.1.4.1.2 section Nsoft, KMIMO
 606                  * and MDL_HARQ are used for Ncb calculation. As Ncb is already
 607                  * known we can adjust those parameters
 608                  */
 609                 rm_req.Nsoft = ncb * rm_req.C;
 610                 rm_req.KMIMO = 1;
 611                 rm_req.MDL_HARQ = 1;
 612                 /* According to 3ggp 36.212 Spec 5.1.4.1.2 section Nl, Qm and G
 613                  * are used for E calculation. As E is already known we can
 614                  * adjust those parameters
 615                  */
 616                 rm_req.NL = e;
 617                 rm_req.Qm = 1;
 618                 rm_req.G = rm_req.NL * rm_req.Qm * rm_req.C;
 619
 620                 rm_req.rvidx = enc->rv_index;
 621                 rm_req.Kidx = k_idx - 1;
 622                 rm_req.nLen = k + 4;
 623                 rm_req.tin0 = out0;
 624                 rm_req.tin1 = out1;
 625                 rm_req.tin2 = out2;
 626                 rm_resp.output = rm_out;
 627                 rm_resp.OutputLen = (e >> 3);
 628                 if (enc->op_flags & RTE_BBDEV_TURBO_RV_INDEX_BYPASS)
 629                         rm_req.bypass_rvidx = 1;
 630                 else
 631                         rm_req.bypass_rvidx = 0;
 632
 633                 if (bblib_rate_match_dl(&rm_req, &rm_resp) != 0) {
 634                         op->status |= 1 << RTE_BBDEV_DRV_ERROR;
 635                         rte_bbdev_log(ERR, "Rate matching failed");
 636                         return;
 637                 }
 638                 enc->output.length += rm_resp.OutputLen;
 639         } else {
 640                 /* Rate matching is bypassed */
 641
 642                 /* Completing last byte of out0 (where 4 tail bits are stored)
 643                  * by moving first 4 bits from out1
 644                  */
 645                 tmp_out = (uint8_t *) --out1;
 646                 *tmp_out = *tmp_out | ((*(tmp_out + 1) & 0xF0) >> 4);
 647                 tmp_out++;
 648                 /* Shifting out1 data by 4 bits to the left */
 649                 for (m = 0; m < k >> 3; ++m) {
 650                         uint8_t *first = tmp_out;
 651                         uint8_t second = *(tmp_out + 1);
 652                         *first = (*first << 4) | ((second & 0xF0) >> 4);
 653                         tmp_out++;
 654                 }
 655                 /* Shifting out2 data by 8 bits to the left */
 656                 for (m = 0; m < (k >> 3) + 1; ++m) {
 657                         *tmp_out = *(tmp_out + 1);
 658                         tmp_out++;
 659                 }
 660                 *tmp_out = 0;
 661         }
 662 }
 663
 664 static inline void
 665 enqueue_enc_one_op(struct turbo_sw_queue *q, struct rte_bbdev_enc_op *op)
 666 {
 667         uint8_t c, r, crc24_bits = 0;
 668         uint16_t k, ncb;
 669         uint32_t e;
 670         struct rte_bbdev_op_turbo_enc *enc = &op->turbo_enc;
 671         uint16_t in_offset = enc->input.offset;
 672         uint16_t out_offset = enc->output.offset;
 673         struct rte_mbuf *m_in = enc->input.data;
 674         struct rte_mbuf *m_out = enc->output.data;
 675         uint16_t total_left = enc->input.length;
 676
 677         /* Clear op status */
 678         op->status = 0;
 679
 680         if (total_left > MAX_TB_SIZE >> 3) {
 681                 rte_bbdev_log(ERR, "TB size (%u) is too big, max: %d",
 682                                 total_left, MAX_TB_SIZE);
 683                 op->status = 1 << RTE_BBDEV_DATA_ERROR;
 684                 return;
 685         }
 686
 687         if (m_in == NULL || m_out == NULL) {
 688                 rte_bbdev_log(ERR, "Invalid mbuf pointer");
 689                 op->status = 1 << RTE_BBDEV_DATA_ERROR;
 690                 return;
 691         }
 692
 693         if ((enc->op_flags & RTE_BBDEV_TURBO_CRC_24B_ATTACH) ||
 694                 (enc->op_flags & RTE_BBDEV_TURBO_CRC_24A_ATTACH))
 695                 crc24_bits = 24;
 696
 697         if (enc->code_block_mode == 0) { /* For Transport Block mode */
 698                 c = enc->tb_params.c;
 699                 r = enc->tb_params.r;
 700         } else {/* For Code Block mode */
 701                 c = 1;
 702                 r = 0;
 703         }
 704
 705         while (total_left > 0 && r < c) {
 706                 if (enc->code_block_mode == 0) {
 707                         k = (r < enc->tb_params.c_neg) ?
 708                                 enc->tb_params.k_neg : enc->tb_params.k_pos;
 709                         ncb = (r < enc->tb_params.c_neg) ?
 710                                 enc->tb_params.ncb_neg : enc->tb_params.ncb_pos;
 711                         e = (r < enc->tb_params.cab) ?
 712                                 enc->tb_params.ea : enc->tb_params.eb;
 713                 } else {
 714                         k = enc->cb_params.k;
 715                         ncb = enc->cb_params.ncb;
 716                         e = enc->cb_params.e;
 717                 }
 718
 719                 process_enc_cb(q, op, r, c, k, ncb, e, m_in,
 720                                 m_out, in_offset, out_offset, total_left);
 721                 /* Update total_left */
 722                 total_left -= (k - crc24_bits) >> 3;
 723                 /* Update offsets for next CBs (if exist) */
 724                 in_offset += (k - crc24_bits) >> 3;
 725                 if (enc->op_flags & RTE_BBDEV_TURBO_RATE_MATCH)
 726                         out_offset += e >> 3;
 727                 else
 728                         out_offset += (k >> 3) * 3 + 2;
 729                 r++;
 730         }
 731
 732         /* check if all input data was processed */
 733         if (total_left != 0) {
 734                 op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 735                 rte_bbdev_log(ERR,
 736                                 "Mismatch between mbuf length and included CBs sizes");
 737         }
 738 }
 739
 740 static inline uint16_t
 741 enqueue_enc_all_ops(struct turbo_sw_queue *q, struct rte_bbdev_enc_op **ops,
 742                 uint16_t nb_ops)
 743 {
 744         uint16_t i;
 745
 746         for (i = 0; i < nb_ops; ++i)
 747                 enqueue_enc_one_op(q, ops[i]);
 748
 749         return rte_ring_enqueue_burst(q->processed_pkts, (void **)ops, nb_ops,
 750                         NULL);
 751 }
 752
 753 /* Remove the padding bytes from a cyclic buffer.
 754  * The input buffer is a data stream wk as described in 3GPP TS 36.212 section
 755  * 5.1.4.1.2 starting from w0 and with length Ncb bytes.
 756  * The output buffer is a data stream wk with pruned padding bytes. It's length
 757  * is 3*D bytes and the order of non-padding bytes is preserved.
 758  */
 759 static inline void
 760 remove_nulls_from_circular_buf(const uint8_t *in, uint8_t *out, uint16_t k,
 761                 uint16_t ncb)
 762 {
 763         uint32_t in_idx, out_idx, c_idx;
 764         const uint32_t d = k + 4;
 765         const uint32_t kw = (ncb / 3);
 766         const uint32_t nd = kw - d;
 767         const uint32_t r_subblock = kw / C_SUBBLOCK;
 768         /* Inter-column permutation pattern */
 769         const uint32_t P[C_SUBBLOCK] = {0, 16, 8, 24, 4, 20, 12, 28, 2, 18, 10,
 770                         26, 6, 22, 14, 30, 1, 17, 9, 25, 5, 21, 13, 29, 3, 19,
 771                         11, 27, 7, 23, 15, 31};
 772         in_idx = 0;
 773         out_idx = 0;
 774
 775         /* The padding bytes are at the first Nd positions in the first row. */
 776         for (c_idx = 0; in_idx < kw; in_idx += r_subblock, ++c_idx) {
 777                 if (P[c_idx] < nd) {
 778                         rte_memcpy(&out[out_idx], &in[in_idx + 1],
 779                                         r_subblock - 1);
 780                         out_idx += r_subblock - 1;
 781                 } else {
 782                         rte_memcpy(&out[out_idx], &in[in_idx], r_subblock);
 783                         out_idx += r_subblock;
 784                 }
 785         }
 786
 787         /* First and second parity bits sub-blocks are interlaced. */
 788         for (c_idx = 0; in_idx < ncb - 2 * r_subblock;
 789                         in_idx += 2 * r_subblock, ++c_idx) {
 790                 uint32_t second_block_c_idx = P[c_idx];
 791                 uint32_t third_block_c_idx = P[c_idx] + 1;
 792
 793                 if (second_block_c_idx < nd && third_block_c_idx < nd) {
 794                         rte_memcpy(&out[out_idx], &in[in_idx + 2],
 795                                         2 * r_subblock - 2);
 796                         out_idx += 2 * r_subblock - 2;
 797                 } else if (second_block_c_idx >= nd &&
 798                                 third_block_c_idx >= nd) {
 799                         rte_memcpy(&out[out_idx], &in[in_idx], 2 * r_subblock);
 800                         out_idx += 2 * r_subblock;
 801                 } else if (second_block_c_idx < nd) {
 802                         out[out_idx++] = in[in_idx];
 803                         rte_memcpy(&out[out_idx], &in[in_idx + 2],
 804                                         2 * r_subblock - 2);
 805                         out_idx += 2 * r_subblock - 2;
 806                 } else {
 807                         rte_memcpy(&out[out_idx], &in[in_idx + 1],
 808                                         2 * r_subblock - 1);
 809                         out_idx += 2 * r_subblock - 1;
 810                 }
 811         }
 812
 813         /* Last interlaced row is different - its last byte is the only padding
 814          * byte. We can have from 2 up to 26 padding bytes (Nd) per sub-block.
 815          * After interlacing the 1st and 2nd parity sub-blocks we can have 0, 1
 816          * or 2 padding bytes each time we make a step of 2 * R_SUBBLOCK bytes
 817          * (moving to another column). 2nd parity sub-block uses the same
 818          * inter-column permutation pattern as the systematic and 1st parity
 819          * sub-blocks but it adds '1' to the resulting index and calculates the
 820          * modulus of the result and Kw. Last column is mapped to itself (id 31)
 821          * so the first byte taken from the 2nd parity sub-block will be the
 822          * 32nd (31+1) byte, then 64th etc. (step is C_SUBBLOCK == 32) and the
 823          * last byte will be the first byte from the sub-block:
 824          * (32 + 32 * (R_SUBBLOCK-1)) % Kw == Kw % Kw == 0. Nd can't  be smaller
 825          * than 2 so we know that bytes with ids 0 and 1 must be the padding
 826          * bytes. The bytes from the 1st parity sub-block are the bytes from the
 827          * 31st column - Nd can't be greater than 26 so we are sure that there
 828          * are no padding bytes in 31st column.
 829          */
 830         rte_memcpy(&out[out_idx], &in[in_idx], 2 * r_subblock - 1);
 831 }
 832
 833 static inline void
 834 move_padding_bytes(const uint8_t *in, uint8_t *out, uint16_t k,
 835                 uint16_t ncb)
 836 {
 837         uint16_t d = k + 4;
 838         uint16_t kpi = ncb / 3;
 839         uint16_t nd = kpi - d;
 840
 841         rte_memcpy(&out[nd], in, d);
 842         rte_memcpy(&out[nd + kpi + 64], &in[kpi], d);
 843         rte_memcpy(&out[nd + 2 * (kpi + 64)], &in[2 * kpi], d);
 844 }
 845
 846 static inline void
 847 process_dec_cb(struct turbo_sw_queue *q, struct rte_bbdev_dec_op *op,
 848                 uint8_t c, uint16_t k, uint16_t kw, struct rte_mbuf *m_in,
 849                 struct rte_mbuf *m_out, uint16_t in_offset, uint16_t out_offset,
 850                 bool check_crc_24b, uint16_t total_left)
 851 {
 852         int ret;
 853         int32_t k_idx;
 854         int32_t iter_cnt;
 855         uint8_t *in, *out, *adapter_input;
 856         int32_t ncb, ncb_without_null;
 857         struct bblib_turbo_adapter_ul_response adapter_resp;
 858         struct bblib_turbo_adapter_ul_request adapter_req;
 859         struct bblib_turbo_decoder_request turbo_req;
 860         struct bblib_turbo_decoder_response turbo_resp;
 861         struct rte_bbdev_op_turbo_dec *dec = &op->turbo_dec;
 862
 863         k_idx = compute_idx(k);
 864
 865         ret = is_dec_input_valid(k_idx, kw, total_left);
 866         if (ret != 0) {
 867                 op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 868                 return;
 869         }
 870
 871         in = rte_pktmbuf_mtod_offset(m_in, uint8_t *, in_offset);
 872         ncb = kw;
 873         ncb_without_null = (k + 4) * 3;
 874
 875         if (check_bit(dec->op_flags, RTE_BBDEV_TURBO_SUBBLOCK_DEINTERLEAVE)) {
 876                 struct bblib_deinterleave_ul_request deint_req;
 877                 struct bblib_deinterleave_ul_response deint_resp;
 878
 879                 /* SW decoder accepts only a circular buffer without NULL bytes
 880                  * so the input needs to be converted.
 881                  */
 882                 remove_nulls_from_circular_buf(in, q->deint_input, k, ncb);
 883
 884                 deint_req.pharqbuffer = q->deint_input;
 885                 deint_req.ncb = ncb_without_null;
 886                 deint_resp.pinteleavebuffer = q->deint_output;
 887                 bblib_deinterleave_ul(&deint_req, &deint_resp);
 888         } else
 889                 move_padding_bytes(in, q->deint_output, k, ncb);
 890
 891         adapter_input = q->deint_output;
 892
 893         if (dec->op_flags & RTE_BBDEV_TURBO_POS_LLR_1_BIT_IN)
 894                 adapter_req.isinverted = 1;
 895         else if (dec->op_flags & RTE_BBDEV_TURBO_NEG_LLR_1_BIT_IN)
 896                 adapter_req.isinverted = 0;
 897         else {
 898                 op->status |= 1 << RTE_BBDEV_DRV_ERROR;
 899                 rte_bbdev_log(ERR, "LLR format wasn't specified");
 900                 return;
 901         }
 902
 903         adapter_req.ncb = ncb_without_null;
 904         adapter_req.pinteleavebuffer = adapter_input;
 905         adapter_resp.pharqout = q->adapter_output;
 906         bblib_turbo_adapter_ul(&adapter_req, &adapter_resp);
 907
 908         out = (uint8_t *)rte_pktmbuf_append(m_out, (k >> 3));
 909         if (out == NULL) {
 910                 op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 911                 rte_bbdev_log(ERR, "Too little space in output mbuf");
 912                 return;
 913         }
 914         /* rte_bbdev_op_data.offset can be different than the offset of the
 915          * appended bytes
 916          */
 917         out = rte_pktmbuf_mtod_offset(m_out, uint8_t *, out_offset);
 918         if (check_crc_24b)
 919                 turbo_req.c = c + 1;
 920         else
 921                 turbo_req.c = c;
 922         turbo_req.input = (int8_t *)q->adapter_output;
 923         turbo_req.k = k;
 924         turbo_req.k_idx = k_idx;
 925         turbo_req.max_iter_num = dec->iter_max;
 926         turbo_resp.ag_buf = q->ag;
 927         turbo_resp.cb_buf = q->code_block;
 928         turbo_resp.output = out;
 929         iter_cnt = bblib_turbo_decoder(&turbo_req, &turbo_resp);
 930         dec->hard_output.length += (k >> 3);
 931
 932         if (iter_cnt > 0) {
 933                 /* Temporary solution for returned iter_count from SDK */
 934                 iter_cnt = (iter_cnt - 1) / 2;
 935                 dec->iter_count = RTE_MAX(iter_cnt, dec->iter_count);
 936         } else {
 937                 op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 938                 rte_bbdev_log(ERR, "Turbo Decoder failed");
 939                 return;
 940         }
 941 }
 942
 943 static inline void
 944 enqueue_dec_one_op(struct turbo_sw_queue *q, struct rte_bbdev_dec_op *op)
 945 {
 946         uint8_t c, r = 0;
 947         uint16_t kw, k = 0;
 948         struct rte_bbdev_op_turbo_dec *dec = &op->turbo_dec;
 949         struct rte_mbuf *m_in = dec->input.data;
 950         struct rte_mbuf *m_out = dec->hard_output.data;
 951         uint16_t in_offset = dec->input.offset;
 952         uint16_t total_left = dec->input.length;
 953         uint16_t out_offset = dec->hard_output.offset;
 954
 955         /* Clear op status */
 956         op->status = 0;
 957
 958         if (m_in == NULL || m_out == NULL) {
 959                 rte_bbdev_log(ERR, "Invalid mbuf pointer");
 960                 op->status = 1 << RTE_BBDEV_DATA_ERROR;
 961                 return;
 962         }
 963
 964         if (dec->code_block_mode == 0) { /* For Transport Block mode */
 965                 c = dec->tb_params.c;
 966         } else { /* For Code Block mode */
 967                 k = dec->cb_params.k;
 968                 c = 1;
 969         }
 970
 971         while (total_left > 0) {
 972                 if (dec->code_block_mode == 0)
 973                         k = (r < dec->tb_params.c_neg) ?
 974                                 dec->tb_params.k_neg : dec->tb_params.k_pos;
 975
 976                 /* Calculates circular buffer size (Kw).
 977                  * According to 3gpp 36.212 section 5.1.4.2
 978                  *   Kw = 3 * Kpi,
 979                  * where:
 980                  *   Kpi = nCol * nRow
 981                  * where nCol is 32 and nRow can be calculated from:
 982                  *   D =< nCol * nRow
 983                  * where D is the size of each output from turbo encoder block
 984                  * (k + 4).
 985                  */
 986                 kw = RTE_ALIGN_CEIL(k + 4, C_SUBBLOCK) * 3;
 987
 988                 process_dec_cb(q, op, c, k, kw, m_in, m_out, in_offset,
 989                                 out_offset, check_bit(dec->op_flags,
 990                                 RTE_BBDEV_TURBO_CRC_TYPE_24B), total_left);
 991                 /* As a result of decoding we get Code Block with included
 992                  * decoded CRC24 at the end of Code Block. Type of CRC24 is
 993                  * specified by flag.
 994                  */
 995
 996                 /* Update total_left */
 997                 total_left -= kw;
 998                 /* Update offsets for next CBs (if exist) */
 999                 in_offset += kw;
1000                 out_offset += (k >> 3);
1001                 r++;
1002         }
1003         if (total_left != 0) {
1004                 op->status |= 1 << RTE_BBDEV_DATA_ERROR;
1005                 rte_bbdev_log(ERR,
1006                                 "Mismatch between mbuf length and included Circular buffer sizes");
1007         }
1008 }
1009
1010 static inline uint16_t
1011 enqueue_dec_all_ops(struct turbo_sw_queue *q, struct rte_bbdev_dec_op **ops,
1012                 uint16_t nb_ops)
1013 {
1014         uint16_t i;
1015
1016         for (i = 0; i < nb_ops; ++i)
1017                 enqueue_dec_one_op(q, ops[i]);
1018
1019         return rte_ring_enqueue_burst(q->processed_pkts, (void **)ops, nb_ops,
1020                         NULL);
1021 }
1022
1023 /* Enqueue burst */
1024 static uint16_t
1025 enqueue_enc_ops(struct rte_bbdev_queue_data *q_data,
1026                 struct rte_bbdev_enc_op **ops, uint16_t nb_ops)
1027 {
1028         void *queue = q_data->queue_private;
1029         struct turbo_sw_queue *q = queue;
1030         uint16_t nb_enqueued = 0;
1031
1032         nb_enqueued = enqueue_enc_all_ops(q, ops, nb_ops);
1033
1034         q_data->queue_stats.enqueue_err_count += nb_ops - nb_enqueued;
1035         q_data->queue_stats.enqueued_count += nb_enqueued;
1036
1037         return nb_enqueued;
1038 }
1039
1040 /* Enqueue burst */
1041 static uint16_t
1042 enqueue_dec_ops(struct rte_bbdev_queue_data *q_data,
1043                  struct rte_bbdev_dec_op **ops, uint16_t nb_ops)
1044 {
1045         void *queue = q_data->queue_private;
1046         struct turbo_sw_queue *q = queue;
1047         uint16_t nb_enqueued = 0;
1048
1049         nb_enqueued = enqueue_dec_all_ops(q, ops, nb_ops);
1050
1051         q_data->queue_stats.enqueue_err_count += nb_ops - nb_enqueued;
1052         q_data->queue_stats.enqueued_count += nb_enqueued;
1053
1054         return nb_enqueued;
1055 }
1056
1057 /* Dequeue decode burst */
1058 static uint16_t
1059 dequeue_dec_ops(struct rte_bbdev_queue_data *q_data,
1060                 struct rte_bbdev_dec_op **ops, uint16_t nb_ops)
1061 {
1062         struct turbo_sw_queue *q = q_data->queue_private;
1063         uint16_t nb_dequeued = rte_ring_dequeue_burst(q->processed_pkts,
1064                         (void **)ops, nb_ops, NULL);
1065         q_data->queue_stats.dequeued_count += nb_dequeued;
1066
1067         return nb_dequeued;
1068 }
1069
1070 /* Dequeue encode burst */
1071 static uint16_t
1072 dequeue_enc_ops(struct rte_bbdev_queue_data *q_data,
1073                 struct rte_bbdev_enc_op **ops, uint16_t nb_ops)
1074 {
1075         struct turbo_sw_queue *q = q_data->queue_private;
1076         uint16_t nb_dequeued = rte_ring_dequeue_burst(q->processed_pkts,
1077                         (void **)ops, nb_ops, NULL);
1078         q_data->queue_stats.dequeued_count += nb_dequeued;
1079
1080         return nb_dequeued;
1081 }
1082
1083 /* Parse 16bit integer from string argument */
1084 static inline int
1085 parse_u16_arg(const char *key, const char *value, void *extra_args)
1086 {
1087         uint16_t *u16 = extra_args;
1088         unsigned int long result;
1089
1090         if ((value == NULL) || (extra_args == NULL))
1091                 return -EINVAL;
1092         errno = 0;
1093         result = strtoul(value, NULL, 0);
1094         if ((result >= (1 << 16)) || (errno != 0)) {
1095                 rte_bbdev_log(ERR, "Invalid value %lu for %s", result, key);
1096                 return -ERANGE;
1097         }
1098         *u16 = (uint16_t)result;
1099         return 0;
1100 }
1101
1102 /* Parse parameters used to create device */
1103 static int
1104 parse_turbo_sw_params(struct turbo_sw_params *params, const char *input_args)
1105 {
1106         struct rte_kvargs *kvlist = NULL;
1107         int ret = 0;
1108
1109         if (params == NULL)
1110                 return -EINVAL;
1111         if (input_args) {
1112                 kvlist = rte_kvargs_parse(input_args, turbo_sw_valid_params);
1113                 if (kvlist == NULL)
1114                         return -EFAULT;
1115
1116                 ret = rte_kvargs_process(kvlist, turbo_sw_valid_params[0],
1117                                         &parse_u16_arg, &params->queues_num);
1118                 if (ret < 0)
1119                         goto exit;
1120
1121                 ret = rte_kvargs_process(kvlist, turbo_sw_valid_params[1],
1122                                         &parse_u16_arg, &params->socket_id);
1123                 if (ret < 0)
1124                         goto exit;
1125
1126                 if (params->socket_id >= RTE_MAX_NUMA_NODES) {
1127                         rte_bbdev_log(ERR, "Invalid socket, must be < %u",
1128                                         RTE_MAX_NUMA_NODES);
1129                         goto exit;
1130                 }
1131         }
1132
1133 exit:
1134         if (kvlist)
1135                 rte_kvargs_free(kvlist);
1136         return ret;
1137 }
1138
1139 /* Create device */
1140 static int
1141 turbo_sw_bbdev_create(struct rte_vdev_device *vdev,
1142                 struct turbo_sw_params *init_params)
1143 {
1144         struct rte_bbdev *bbdev;
1145         const char *name = rte_vdev_device_name(vdev);
1146
1147         bbdev = rte_bbdev_allocate(name);
1148         if (bbdev == NULL)
1149                 return -ENODEV;
1150
1151         bbdev->data->dev_private = rte_zmalloc_socket(name,
1152                         sizeof(struct bbdev_private), RTE_CACHE_LINE_SIZE,
1153                         init_params->socket_id);
1154         if (bbdev->data->dev_private == NULL) {
1155                 rte_bbdev_release(bbdev);
1156                 return -ENOMEM;
1157         }
1158
1159         bbdev->dev_ops = &pmd_ops;
1160         bbdev->device = &vdev->device;
1161         bbdev->data->socket_id = init_params->socket_id;
1162         bbdev->intr_handle = NULL;
1163
1164         /* register rx/tx burst functions for data path */
1165         bbdev->dequeue_enc_ops = dequeue_enc_ops;
1166         bbdev->dequeue_dec_ops = dequeue_dec_ops;
1167         bbdev->enqueue_enc_ops = enqueue_enc_ops;
1168         bbdev->enqueue_dec_ops = enqueue_dec_ops;
1169         ((struct bbdev_private *) bbdev->data->dev_private)->max_nb_queues =
1170                         init_params->queues_num;
1171
1172         return 0;
1173 }
1174
1175 /* Initialise device */
1176 static int
1177 turbo_sw_bbdev_probe(struct rte_vdev_device *vdev)
1178 {
1179         struct turbo_sw_params init_params = {
1180                 rte_socket_id(),
1181                 RTE_BBDEV_DEFAULT_MAX_NB_QUEUES
1182         };
1183         const char *name;
1184         const char *input_args;
1185
1186         if (vdev == NULL)
1187                 return -EINVAL;
1188
1189         name = rte_vdev_device_name(vdev);
1190         if (name == NULL)
1191                 return -EINVAL;
1192         input_args = rte_vdev_device_args(vdev);
1193         parse_turbo_sw_params(&init_params, input_args);
1194
1195         rte_bbdev_log_debug(
1196                         "Initialising %s on NUMA node %d with max queues: %d\n",
1197                         name, init_params.socket_id, init_params.queues_num);
1198
1199         return turbo_sw_bbdev_create(vdev, &init_params);
1200 }
1201
1202 /* Uninitialise device */
1203 static int
1204 turbo_sw_bbdev_remove(struct rte_vdev_device *vdev)
1205 {
1206         struct rte_bbdev *bbdev;
1207         const char *name;
1208
1209         if (vdev == NULL)
1210                 return -EINVAL;
1211
1212         name = rte_vdev_device_name(vdev);
1213         if (name == NULL)
1214                 return -EINVAL;
1215
1216         bbdev = rte_bbdev_get_named_dev(name);
1217         if (bbdev == NULL)
1218                 return -EINVAL;
1219
1220         rte_free(bbdev->data->dev_private);
1221
1222         return rte_bbdev_release(bbdev);
1223 }
1224
1225 static struct rte_vdev_driver bbdev_turbo_sw_pmd_drv = {
1226         .probe = turbo_sw_bbdev_probe,
1227         .remove = turbo_sw_bbdev_remove
1228 };
1229
1230 RTE_PMD_REGISTER_VDEV(DRIVER_NAME, bbdev_turbo_sw_pmd_drv);
1231 RTE_PMD_REGISTER_PARAM_STRING(DRIVER_NAME,
1232         TURBO_SW_MAX_NB_QUEUES_ARG"=<int> "
1233         TURBO_SW_SOCKET_ID_ARG"=<int>");
1234
1235 RTE_INIT(null_bbdev_init_log);
1236 static void
1237 null_bbdev_init_log(void)
1238 {
1239         bbdev_turbo_sw_logtype = rte_log_register("pmd.bb.turbo_sw");
1240         if (bbdev_turbo_sw_logtype >= 0)
1241                 rte_log_set_level(bbdev_turbo_sw_logtype, RTE_LOG_NOTICE);
1242 }