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 cb_idx, 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         struct rte_bbdev_op_turbo_enc *enc = &op->turbo_enc;
 464         struct bblib_crc_request crc_req;
 465         struct bblib_crc_response crc_resp;
 466         struct bblib_turbo_encoder_request turbo_req;
 467         struct bblib_turbo_encoder_response turbo_resp;
 468         struct bblib_rate_match_dl_request rm_req;
 469         struct bblib_rate_match_dl_response rm_resp;
 470
 471         k_idx = compute_idx(k);
 472         in = rte_pktmbuf_mtod_offset(m_in, uint8_t *, in_offset);
 473
 474         /* CRC24A (for TB) */
 475         if ((enc->op_flags & RTE_BBDEV_TURBO_CRC_24A_ATTACH) &&
 476                 (enc->code_block_mode == 1)) {
 477                 ret = is_enc_input_valid(k - 24, k_idx, total_left);
 478                 if (ret != 0) {
 479                         op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 480                         return;
 481                 }
 482                 /* copy the input to the temporary buffer to be able to extend
 483                  * it by 3 CRC bytes
 484                  */
 485                 rte_memcpy(q->enc_in, in, (k - 24) >> 3);
 486                 crc_req.data = in;
 487                 crc_req.len = (k - 24) >> 3;
 488                 crc_resp.data = q->enc_in;
 489                 bblib_lte_crc24a_gen(&crc_req, &crc_resp);
 490
 491                 in = q->enc_in;
 492         } else if (enc->op_flags & RTE_BBDEV_TURBO_CRC_24B_ATTACH) {
 493                 /* CRC24B */
 494                 ret = is_enc_input_valid(k - 24, k_idx, total_left);
 495                 if (ret != 0) {
 496                         op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 497                         return;
 498                 }
 499                 /* copy the input to the temporary buffer to be able to extend
 500                  * it by 3 CRC bytes
 501                  */
 502                 rte_memcpy(q->enc_in, in, (k - 24) >> 3);
 503                 crc_req.data = in;
 504                 crc_req.len = (k - 24) >> 3;
 505                 crc_resp.data = q->enc_in;
 506                 bblib_lte_crc24b_gen(&crc_req, &crc_resp);
 507
 508                 in = q->enc_in;
 509         } else {
 510                 ret = is_enc_input_valid(k, k_idx, total_left);
 511                 if (ret != 0) {
 512                         op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 513                         return;
 514                 }
 515         }
 516
 517         /* Turbo encoder */
 518
 519         /* Each bit layer output from turbo encoder is (k+4) bits long, i.e.
 520          * input length + 4 tail bits. That's (k/8) + 1 bytes after rounding up.
 521          * So dst_data's length should be 3*(k/8) + 3 bytes.
 522          */
 523         out0 = q->enc_out;
 524         out1 = RTE_PTR_ADD(out0, (k >> 3) + 1);
 525         out2 = RTE_PTR_ADD(out1, (k >> 3) + 1);
 526
 527         turbo_req.case_id = k_idx;
 528         turbo_req.input_win = in;
 529         turbo_req.length = k >> 3;
 530         turbo_resp.output_win_0 = out0;
 531         turbo_resp.output_win_1 = out1;
 532         turbo_resp.output_win_2 = out2;
 533         if (bblib_turbo_encoder(&turbo_req, &turbo_resp) != 0) {
 534                 op->status |= 1 << RTE_BBDEV_DRV_ERROR;
 535                 rte_bbdev_log(ERR, "Turbo Encoder failed");
 536                 return;
 537         }
 538
 539         /* Rate-matching */
 540         if (enc->op_flags & RTE_BBDEV_TURBO_RATE_MATCH) {
 541                 /* get output data starting address */
 542                 rm_out = (uint8_t *)rte_pktmbuf_append(m_out, (e >> 3));
 543                 if (rm_out == NULL) {
 544                         op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 545                         rte_bbdev_log(ERR,
 546                                         "Too little space in output mbuf");
 547                         return;
 548                 }
 549                 /* rte_bbdev_op_data.offset can be different than the offset
 550                  * of the appended bytes
 551                  */
 552                 rm_out = rte_pktmbuf_mtod_offset(m_out, uint8_t *, out_offset);
 553
 554                 /* index of current code block */
 555                 rm_req.r = cb_idx;
 556                 /* total number of code block */
 557                 rm_req.C = c;
 558                 /* For DL - 1, UL - 0 */
 559                 rm_req.direction = 1;
 560                 /* According to 3ggp 36.212 Spec 5.1.4.1.2 section Nsoft, KMIMO
 561                  * and MDL_HARQ are used for Ncb calculation. As Ncb is already
 562                  * known we can adjust those parameters
 563                  */
 564                 rm_req.Nsoft = ncb * rm_req.C;
 565                 rm_req.KMIMO = 1;
 566                 rm_req.MDL_HARQ = 1;
 567                 /* According to 3ggp 36.212 Spec 5.1.4.1.2 section Nl, Qm and G
 568                  * are used for E calculation. As E is already known we can
 569                  * adjust those parameters
 570                  */
 571                 rm_req.NL = e;
 572                 rm_req.Qm = 1;
 573                 rm_req.G = rm_req.NL * rm_req.Qm * rm_req.C;
 574
 575                 rm_req.rvidx = enc->rv_index;
 576                 rm_req.Kidx = k_idx - 1;
 577                 rm_req.nLen = k + 4;
 578                 rm_req.tin0 = out0;
 579                 rm_req.tin1 = out1;
 580                 rm_req.tin2 = out2;
 581                 rm_resp.output = rm_out;
 582                 rm_resp.OutputLen = (e >> 3);
 583                 if (enc->op_flags & RTE_BBDEV_TURBO_RV_INDEX_BYPASS)
 584                         rm_req.bypass_rvidx = 1;
 585                 else
 586                         rm_req.bypass_rvidx = 0;
 587
 588                 if (bblib_rate_match_dl(&rm_req, &rm_resp) != 0) {
 589                         op->status |= 1 << RTE_BBDEV_DRV_ERROR;
 590                         rte_bbdev_log(ERR, "Rate matching failed");
 591                         return;
 592                 }
 593                 enc->output.length += rm_resp.OutputLen;
 594         } else {
 595                 /* Rate matching is bypassed */
 596
 597                 /* Completing last byte of out0 (where 4 tail bits are stored)
 598                  * by moving first 4 bits from out1
 599                  */
 600                 tmp_out = (uint8_t *) --out1;
 601                 *tmp_out = *tmp_out | ((*(tmp_out + 1) & 0xF0) >> 4);
 602                 tmp_out++;
 603                 /* Shifting out1 data by 4 bits to the left */
 604                 for (m = 0; m < k >> 3; ++m) {
 605                         uint8_t *first = tmp_out;
 606                         uint8_t second = *(tmp_out + 1);
 607                         *first = (*first << 4) | ((second & 0xF0) >> 4);
 608                         tmp_out++;
 609                 }
 610                 /* Shifting out2 data by 8 bits to the left */
 611                 for (m = 0; m < (k >> 3) + 1; ++m) {
 612                         *tmp_out = *(tmp_out + 1);
 613                         tmp_out++;
 614                 }
 615                 *tmp_out = 0;
 616
 617                 /* copy shifted output to turbo_enc entity */
 618                 out0 = (uint8_t *)rte_pktmbuf_append(m_out,
 619                                 (k >> 3) * 3 + 2);
 620                 if (out0 == NULL) {
 621                         op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 622                         rte_bbdev_log(ERR,
 623                                         "Too little space in output mbuf");
 624                         return;
 625                 }
 626                 enc->output.length += (k >> 3) * 3 + 2;
 627                 /* rte_bbdev_op_data.offset can be different than the
 628                  * offset of the appended bytes
 629                  */
 630                 out0 = rte_pktmbuf_mtod_offset(m_out, uint8_t *,
 631                                 out_offset);
 632                 rte_memcpy(out0, q->enc_out, (k >> 3) * 3 + 2);
 633         }
 634 }
 635
 636 static inline void
 637 enqueue_enc_one_op(struct turbo_sw_queue *q, struct rte_bbdev_enc_op *op)
 638 {
 639         uint8_t c, r, crc24_bits = 0;
 640         uint16_t k, ncb;
 641         uint32_t e;
 642         struct rte_bbdev_op_turbo_enc *enc = &op->turbo_enc;
 643         uint16_t in_offset = enc->input.offset;
 644         uint16_t out_offset = enc->output.offset;
 645         struct rte_mbuf *m_in = enc->input.data;
 646         struct rte_mbuf *m_out = enc->output.data;
 647         uint16_t total_left = enc->input.length;
 648
 649         /* Clear op status */
 650         op->status = 0;
 651
 652         if (total_left > MAX_TB_SIZE >> 3) {
 653                 rte_bbdev_log(ERR, "TB size (%u) is too big, max: %d",
 654                                 total_left, MAX_TB_SIZE);
 655                 op->status = 1 << RTE_BBDEV_DATA_ERROR;
 656                 return;
 657         }
 658
 659         if (m_in == NULL || m_out == NULL) {
 660                 rte_bbdev_log(ERR, "Invalid mbuf pointer");
 661                 op->status = 1 << RTE_BBDEV_DATA_ERROR;
 662                 return;
 663         }
 664
 665         if ((enc->op_flags & RTE_BBDEV_TURBO_CRC_24B_ATTACH) ||
 666                 (enc->op_flags & RTE_BBDEV_TURBO_CRC_24A_ATTACH))
 667                 crc24_bits = 24;
 668
 669         if (enc->code_block_mode == 0) { /* For Transport Block mode */
 670                 c = enc->tb_params.c;
 671                 r = enc->tb_params.r;
 672         } else {/* For Code Block mode */
 673                 c = 1;
 674                 r = 0;
 675         }
 676
 677         while (total_left > 0 && r < c) {
 678                 if (enc->code_block_mode == 0) {
 679                         k = (r < enc->tb_params.c_neg) ?
 680                                 enc->tb_params.k_neg : enc->tb_params.k_pos;
 681                         ncb = (r < enc->tb_params.c_neg) ?
 682                                 enc->tb_params.ncb_neg : enc->tb_params.ncb_pos;
 683                         e = (r < enc->tb_params.cab) ?
 684                                 enc->tb_params.ea : enc->tb_params.eb;
 685                 } else {
 686                         k = enc->cb_params.k;
 687                         ncb = enc->cb_params.ncb;
 688                         e = enc->cb_params.e;
 689                 }
 690
 691                 process_enc_cb(q, op, r, c, k, ncb, e, m_in,
 692                                 m_out, in_offset, out_offset, total_left);
 693                 /* Update total_left */
 694                 total_left -= (k - crc24_bits) >> 3;
 695                 /* Update offsets for next CBs (if exist) */
 696                 in_offset += (k - crc24_bits) >> 3;
 697                 if (enc->op_flags & RTE_BBDEV_TURBO_RATE_MATCH)
 698                         out_offset += e >> 3;
 699                 else
 700                         out_offset += (k >> 3) * 3 + 2;
 701                 r++;
 702         }
 703
 704         /* check if all input data was processed */
 705         if (total_left != 0) {
 706                 op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 707                 rte_bbdev_log(ERR,
 708                                 "Mismatch between mbuf length and included CBs sizes");
 709         }
 710 }
 711
 712 static inline uint16_t
 713 enqueue_enc_all_ops(struct turbo_sw_queue *q, struct rte_bbdev_enc_op **ops,
 714                 uint16_t nb_ops)
 715 {
 716         uint16_t i;
 717
 718         for (i = 0; i < nb_ops; ++i)
 719                 enqueue_enc_one_op(q, ops[i]);
 720
 721         return rte_ring_enqueue_burst(q->processed_pkts, (void **)ops, nb_ops,
 722                         NULL);
 723 }
 724
 725 /* Remove the padding bytes from a cyclic buffer.
 726  * The input buffer is a data stream wk as described in 3GPP TS 36.212 section
 727  * 5.1.4.1.2 starting from w0 and with length Ncb bytes.
 728  * The output buffer is a data stream wk with pruned padding bytes. It's length
 729  * is 3*D bytes and the order of non-padding bytes is preserved.
 730  */
 731 static inline void
 732 remove_nulls_from_circular_buf(const uint8_t *in, uint8_t *out, uint16_t k,
 733                 uint16_t ncb)
 734 {
 735         uint32_t in_idx, out_idx, c_idx;
 736         const uint32_t d = k + 4;
 737         const uint32_t kw = (ncb / 3);
 738         const uint32_t nd = kw - d;
 739         const uint32_t r_subblock = kw / C_SUBBLOCK;
 740         /* Inter-column permutation pattern */
 741         const uint32_t P[C_SUBBLOCK] = {0, 16, 8, 24, 4, 20, 12, 28, 2, 18, 10,
 742                         26, 6, 22, 14, 30, 1, 17, 9, 25, 5, 21, 13, 29, 3, 19,
 743                         11, 27, 7, 23, 15, 31};
 744         in_idx = 0;
 745         out_idx = 0;
 746
 747         /* The padding bytes are at the first Nd positions in the first row. */
 748         for (c_idx = 0; in_idx < kw; in_idx += r_subblock, ++c_idx) {
 749                 if (P[c_idx] < nd) {
 750                         rte_memcpy(&out[out_idx], &in[in_idx + 1],
 751                                         r_subblock - 1);
 752                         out_idx += r_subblock - 1;
 753                 } else {
 754                         rte_memcpy(&out[out_idx], &in[in_idx], r_subblock);
 755                         out_idx += r_subblock;
 756                 }
 757         }
 758
 759         /* First and second parity bits sub-blocks are interlaced. */
 760         for (c_idx = 0; in_idx < ncb - 2 * r_subblock;
 761                         in_idx += 2 * r_subblock, ++c_idx) {
 762                 uint32_t second_block_c_idx = P[c_idx];
 763                 uint32_t third_block_c_idx = P[c_idx] + 1;
 764
 765                 if (second_block_c_idx < nd && third_block_c_idx < nd) {
 766                         rte_memcpy(&out[out_idx], &in[in_idx + 2],
 767                                         2 * r_subblock - 2);
 768                         out_idx += 2 * r_subblock - 2;
 769                 } else if (second_block_c_idx >= nd &&
 770                                 third_block_c_idx >= nd) {
 771                         rte_memcpy(&out[out_idx], &in[in_idx], 2 * r_subblock);
 772                         out_idx += 2 * r_subblock;
 773                 } else if (second_block_c_idx < nd) {
 774                         out[out_idx++] = in[in_idx];
 775                         rte_memcpy(&out[out_idx], &in[in_idx + 2],
 776                                         2 * r_subblock - 2);
 777                         out_idx += 2 * r_subblock - 2;
 778                 } else {
 779                         rte_memcpy(&out[out_idx], &in[in_idx + 1],
 780                                         2 * r_subblock - 1);
 781                         out_idx += 2 * r_subblock - 1;
 782                 }
 783         }
 784
 785         /* Last interlaced row is different - its last byte is the only padding
 786          * byte. We can have from 2 up to 26 padding bytes (Nd) per sub-block.
 787          * After interlacing the 1st and 2nd parity sub-blocks we can have 0, 1
 788          * or 2 padding bytes each time we make a step of 2 * R_SUBBLOCK bytes
 789          * (moving to another column). 2nd parity sub-block uses the same
 790          * inter-column permutation pattern as the systematic and 1st parity
 791          * sub-blocks but it adds '1' to the resulting index and calculates the
 792          * modulus of the result and Kw. Last column is mapped to itself (id 31)
 793          * so the first byte taken from the 2nd parity sub-block will be the
 794          * 32nd (31+1) byte, then 64th etc. (step is C_SUBBLOCK == 32) and the
 795          * last byte will be the first byte from the sub-block:
 796          * (32 + 32 * (R_SUBBLOCK-1)) % Kw == Kw % Kw == 0. Nd can't  be smaller
 797          * than 2 so we know that bytes with ids 0 and 1 must be the padding
 798          * bytes. The bytes from the 1st parity sub-block are the bytes from the
 799          * 31st column - Nd can't be greater than 26 so we are sure that there
 800          * are no padding bytes in 31st column.
 801          */
 802         rte_memcpy(&out[out_idx], &in[in_idx], 2 * r_subblock - 1);
 803 }
 804
 805 static inline void
 806 move_padding_bytes(const uint8_t *in, uint8_t *out, uint16_t k,
 807                 uint16_t ncb)
 808 {
 809         uint16_t d = k + 4;
 810         uint16_t kpi = ncb / 3;
 811         uint16_t nd = kpi - d;
 812
 813         rte_memcpy(&out[nd], in, d);
 814         rte_memcpy(&out[nd + kpi + 64], &in[kpi], d);
 815         rte_memcpy(&out[nd + 2 * (kpi + 64)], &in[2 * kpi], d);
 816 }
 817
 818 static inline void
 819 process_dec_cb(struct turbo_sw_queue *q, struct rte_bbdev_dec_op *op,
 820                 uint8_t c, uint16_t k, uint16_t kw, struct rte_mbuf *m_in,
 821                 struct rte_mbuf *m_out, uint16_t in_offset, uint16_t out_offset,
 822                 bool check_crc_24b, uint16_t total_left)
 823 {
 824         int ret;
 825         int32_t k_idx;
 826         int32_t iter_cnt;
 827         uint8_t *in, *out, *adapter_input;
 828         int32_t ncb, ncb_without_null;
 829         struct bblib_turbo_adapter_ul_response adapter_resp;
 830         struct bblib_turbo_adapter_ul_request adapter_req;
 831         struct bblib_turbo_decoder_request turbo_req;
 832         struct bblib_turbo_decoder_response turbo_resp;
 833         struct rte_bbdev_op_turbo_dec *dec = &op->turbo_dec;
 834
 835         k_idx = compute_idx(k);
 836
 837         ret = is_dec_input_valid(k_idx, kw, total_left);
 838         if (ret != 0) {
 839                 op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 840                 return;
 841         }
 842
 843         in = rte_pktmbuf_mtod_offset(m_in, uint8_t *, in_offset);
 844         ncb = kw;
 845         ncb_without_null = (k + 4) * 3;
 846
 847         if (check_bit(dec->op_flags, RTE_BBDEV_TURBO_SUBBLOCK_DEINTERLEAVE)) {
 848                 struct bblib_deinterleave_ul_request deint_req;
 849                 struct bblib_deinterleave_ul_response deint_resp;
 850
 851                 /* SW decoder accepts only a circular buffer without NULL bytes
 852                  * so the input needs to be converted.
 853                  */
 854                 remove_nulls_from_circular_buf(in, q->deint_input, k, ncb);
 855
 856                 deint_req.pharqbuffer = q->deint_input;
 857                 deint_req.ncb = ncb_without_null;
 858                 deint_resp.pinteleavebuffer = q->deint_output;
 859                 bblib_deinterleave_ul(&deint_req, &deint_resp);
 860         } else
 861                 move_padding_bytes(in, q->deint_output, k, ncb);
 862
 863         adapter_input = q->deint_output;
 864
 865         if (dec->op_flags & RTE_BBDEV_TURBO_POS_LLR_1_BIT_IN)
 866                 adapter_req.isinverted = 1;
 867         else if (dec->op_flags & RTE_BBDEV_TURBO_NEG_LLR_1_BIT_IN)
 868                 adapter_req.isinverted = 0;
 869         else {
 870                 op->status |= 1 << RTE_BBDEV_DRV_ERROR;
 871                 rte_bbdev_log(ERR, "LLR format wasn't specified");
 872                 return;
 873         }
 874
 875         adapter_req.ncb = ncb_without_null;
 876         adapter_req.pinteleavebuffer = adapter_input;
 877         adapter_resp.pharqout = q->adapter_output;
 878         bblib_turbo_adapter_ul(&adapter_req, &adapter_resp);
 879
 880         out = (uint8_t *)rte_pktmbuf_append(m_out, (k >> 3));
 881         if (out == NULL) {
 882                 op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 883                 rte_bbdev_log(ERR, "Too little space in output mbuf");
 884                 return;
 885         }
 886         /* rte_bbdev_op_data.offset can be different than the offset of the
 887          * appended bytes
 888          */
 889         out = rte_pktmbuf_mtod_offset(m_out, uint8_t *, out_offset);
 890         if (check_crc_24b)
 891                 turbo_req.c = c + 1;
 892         else
 893                 turbo_req.c = c;
 894         turbo_req.input = (int8_t *)q->adapter_output;
 895         turbo_req.k = k;
 896         turbo_req.k_idx = k_idx;
 897         turbo_req.max_iter_num = dec->iter_max;
 898         turbo_resp.ag_buf = q->ag;
 899         turbo_resp.cb_buf = q->code_block;
 900         turbo_resp.output = out;
 901         iter_cnt = bblib_turbo_decoder(&turbo_req, &turbo_resp);
 902         dec->hard_output.length += (k >> 3);
 903
 904         if (iter_cnt > 0) {
 905                 /* Temporary solution for returned iter_count from SDK */
 906                 iter_cnt = (iter_cnt - 1) / 2;
 907                 dec->iter_count = RTE_MAX(iter_cnt, dec->iter_count);
 908         } else {
 909                 op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 910                 rte_bbdev_log(ERR, "Turbo Decoder failed");
 911                 return;
 912         }
 913 }
 914
 915 static inline void
 916 enqueue_dec_one_op(struct turbo_sw_queue *q, struct rte_bbdev_dec_op *op)
 917 {
 918         uint8_t c, r = 0;
 919         uint16_t kw, k = 0;
 920         struct rte_bbdev_op_turbo_dec *dec = &op->turbo_dec;
 921         struct rte_mbuf *m_in = dec->input.data;
 922         struct rte_mbuf *m_out = dec->hard_output.data;
 923         uint16_t in_offset = dec->input.offset;
 924         uint16_t total_left = dec->input.length;
 925         uint16_t out_offset = dec->hard_output.offset;
 926
 927         /* Clear op status */
 928         op->status = 0;
 929
 930         if (m_in == NULL || m_out == NULL) {
 931                 rte_bbdev_log(ERR, "Invalid mbuf pointer");
 932                 op->status = 1 << RTE_BBDEV_DATA_ERROR;
 933                 return;
 934         }
 935
 936         if (dec->code_block_mode == 0) { /* For Transport Block mode */
 937                 c = dec->tb_params.c;
 938         } else { /* For Code Block mode */
 939                 k = dec->cb_params.k;
 940                 c = 1;
 941         }
 942
 943         while (total_left > 0) {
 944                 if (dec->code_block_mode == 0)
 945                         k = (r < dec->tb_params.c_neg) ?
 946                                 dec->tb_params.k_neg : dec->tb_params.k_pos;
 947
 948                 /* Calculates circular buffer size (Kw).
 949                  * According to 3gpp 36.212 section 5.1.4.2
 950                  *   Kw = 3 * Kpi,
 951                  * where:
 952                  *   Kpi = nCol * nRow
 953                  * where nCol is 32 and nRow can be calculated from:
 954                  *   D =< nCol * nRow
 955                  * where D is the size of each output from turbo encoder block
 956                  * (k + 4).
 957                  */
 958                 kw = RTE_ALIGN_CEIL(k + 4, C_SUBBLOCK) * 3;
 959
 960                 process_dec_cb(q, op, c, k, kw, m_in, m_out, in_offset,
 961                                 out_offset, check_bit(dec->op_flags,
 962                                 RTE_BBDEV_TURBO_CRC_TYPE_24B), total_left);
 963                 /* As a result of decoding we get Code Block with included
 964                  * decoded CRC24 at the end of Code Block. Type of CRC24 is
 965                  * specified by flag.
 966                  */
 967
 968                 /* Update total_left */
 969                 total_left -= kw;
 970                 /* Update offsets for next CBs (if exist) */
 971                 in_offset += kw;
 972                 out_offset += (k >> 3);
 973                 r++;
 974         }
 975         if (total_left != 0) {
 976                 op->status |= 1 << RTE_BBDEV_DATA_ERROR;
 977                 rte_bbdev_log(ERR,
 978                                 "Mismatch between mbuf length and included Circular buffer sizes");
 979         }
 980 }
 981
 982 static inline uint16_t
 983 enqueue_dec_all_ops(struct turbo_sw_queue *q, struct rte_bbdev_dec_op **ops,
 984                 uint16_t nb_ops)
 985 {
 986         uint16_t i;
 987
 988         for (i = 0; i < nb_ops; ++i)
 989                 enqueue_dec_one_op(q, ops[i]);
 990
 991         return rte_ring_enqueue_burst(q->processed_pkts, (void **)ops, nb_ops,
 992                         NULL);
 993 }
 994
 995 /* Enqueue burst */
 996 static uint16_t
 997 enqueue_enc_ops(struct rte_bbdev_queue_data *q_data,
 998                 struct rte_bbdev_enc_op **ops, uint16_t nb_ops)
 999 {
1000         void *queue = q_data->queue_private;
1001         struct turbo_sw_queue *q = queue;
1002         uint16_t nb_enqueued = 0;
1003
1004         nb_enqueued = enqueue_enc_all_ops(q, ops, nb_ops);
1005
1006         q_data->queue_stats.enqueue_err_count += nb_ops - nb_enqueued;
1007         q_data->queue_stats.enqueued_count += nb_enqueued;
1008
1009         return nb_enqueued;
1010 }
1011
1012 /* Enqueue burst */
1013 static uint16_t
1014 enqueue_dec_ops(struct rte_bbdev_queue_data *q_data,
1015                  struct rte_bbdev_dec_op **ops, uint16_t nb_ops)
1016 {
1017         void *queue = q_data->queue_private;
1018         struct turbo_sw_queue *q = queue;
1019         uint16_t nb_enqueued = 0;
1020
1021         nb_enqueued = enqueue_dec_all_ops(q, ops, nb_ops);
1022
1023         q_data->queue_stats.enqueue_err_count += nb_ops - nb_enqueued;
1024         q_data->queue_stats.enqueued_count += nb_enqueued;
1025
1026         return nb_enqueued;
1027 }
1028
1029 /* Dequeue decode burst */
1030 static uint16_t
1031 dequeue_dec_ops(struct rte_bbdev_queue_data *q_data,
1032                 struct rte_bbdev_dec_op **ops, uint16_t nb_ops)
1033 {
1034         struct turbo_sw_queue *q = q_data->queue_private;
1035         uint16_t nb_dequeued = rte_ring_dequeue_burst(q->processed_pkts,
1036                         (void **)ops, nb_ops, NULL);
1037         q_data->queue_stats.dequeued_count += nb_dequeued;
1038
1039         return nb_dequeued;
1040 }
1041
1042 /* Dequeue encode burst */
1043 static uint16_t
1044 dequeue_enc_ops(struct rte_bbdev_queue_data *q_data,
1045                 struct rte_bbdev_enc_op **ops, uint16_t nb_ops)
1046 {
1047         struct turbo_sw_queue *q = q_data->queue_private;
1048         uint16_t nb_dequeued = rte_ring_dequeue_burst(q->processed_pkts,
1049                         (void **)ops, nb_ops, NULL);
1050         q_data->queue_stats.dequeued_count += nb_dequeued;
1051
1052         return nb_dequeued;
1053 }
1054
1055 /* Parse 16bit integer from string argument */
1056 static inline int
1057 parse_u16_arg(const char *key, const char *value, void *extra_args)
1058 {
1059         uint16_t *u16 = extra_args;
1060         unsigned int long result;
1061
1062         if ((value == NULL) || (extra_args == NULL))
1063                 return -EINVAL;
1064         errno = 0;
1065         result = strtoul(value, NULL, 0);
1066         if ((result >= (1 << 16)) || (errno != 0)) {
1067                 rte_bbdev_log(ERR, "Invalid value %lu for %s", result, key);
1068                 return -ERANGE;
1069         }
1070         *u16 = (uint16_t)result;
1071         return 0;
1072 }
1073
1074 /* Parse parameters used to create device */
1075 static int
1076 parse_turbo_sw_params(struct turbo_sw_params *params, const char *input_args)
1077 {
1078         struct rte_kvargs *kvlist = NULL;
1079         int ret = 0;
1080
1081         if (params == NULL)
1082                 return -EINVAL;
1083         if (input_args) {
1084                 kvlist = rte_kvargs_parse(input_args, turbo_sw_valid_params);
1085                 if (kvlist == NULL)
1086                         return -EFAULT;
1087
1088                 ret = rte_kvargs_process(kvlist, turbo_sw_valid_params[0],
1089                                         &parse_u16_arg, &params->queues_num);
1090                 if (ret < 0)
1091                         goto exit;
1092
1093                 ret = rte_kvargs_process(kvlist, turbo_sw_valid_params[1],
1094                                         &parse_u16_arg, &params->socket_id);
1095                 if (ret < 0)
1096                         goto exit;
1097
1098                 if (params->socket_id >= RTE_MAX_NUMA_NODES) {
1099                         rte_bbdev_log(ERR, "Invalid socket, must be < %u",
1100                                         RTE_MAX_NUMA_NODES);
1101                         goto exit;
1102                 }
1103         }
1104
1105 exit:
1106         if (kvlist)
1107                 rte_kvargs_free(kvlist);
1108         return ret;
1109 }
1110
1111 /* Create device */
1112 static int
1113 turbo_sw_bbdev_create(struct rte_vdev_device *vdev,
1114                 struct turbo_sw_params *init_params)
1115 {
1116         struct rte_bbdev *bbdev;
1117         const char *name = rte_vdev_device_name(vdev);
1118
1119         bbdev = rte_bbdev_allocate(name);
1120         if (bbdev == NULL)
1121                 return -ENODEV;
1122
1123         bbdev->data->dev_private = rte_zmalloc_socket(name,
1124                         sizeof(struct bbdev_private), RTE_CACHE_LINE_SIZE,
1125                         init_params->socket_id);
1126         if (bbdev->data->dev_private == NULL) {
1127                 rte_bbdev_release(bbdev);
1128                 return -ENOMEM;
1129         }
1130
1131         bbdev->dev_ops = &pmd_ops;
1132         bbdev->device = &vdev->device;
1133         bbdev->data->socket_id = init_params->socket_id;
1134         bbdev->intr_handle = NULL;
1135
1136         /* register rx/tx burst functions for data path */
1137         bbdev->dequeue_enc_ops = dequeue_enc_ops;
1138         bbdev->dequeue_dec_ops = dequeue_dec_ops;
1139         bbdev->enqueue_enc_ops = enqueue_enc_ops;
1140         bbdev->enqueue_dec_ops = enqueue_dec_ops;
1141         ((struct bbdev_private *) bbdev->data->dev_private)->max_nb_queues =
1142                         init_params->queues_num;
1143
1144         return 0;
1145 }
1146
1147 /* Initialise device */
1148 static int
1149 turbo_sw_bbdev_probe(struct rte_vdev_device *vdev)
1150 {
1151         struct turbo_sw_params init_params = {
1152                 rte_socket_id(),
1153                 RTE_BBDEV_DEFAULT_MAX_NB_QUEUES
1154         };
1155         const char *name;
1156         const char *input_args;
1157
1158         if (vdev == NULL)
1159                 return -EINVAL;
1160
1161         name = rte_vdev_device_name(vdev);
1162         if (name == NULL)
1163                 return -EINVAL;
1164         input_args = rte_vdev_device_args(vdev);
1165         parse_turbo_sw_params(&init_params, input_args);
1166
1167         rte_bbdev_log_debug(
1168                         "Initialising %s on NUMA node %d with max queues: %d\n",
1169                         name, init_params.socket_id, init_params.queues_num);
1170
1171         return turbo_sw_bbdev_create(vdev, &init_params);
1172 }
1173
1174 /* Uninitialise device */
1175 static int
1176 turbo_sw_bbdev_remove(struct rte_vdev_device *vdev)
1177 {
1178         struct rte_bbdev *bbdev;
1179         const char *name;
1180
1181         if (vdev == NULL)
1182                 return -EINVAL;
1183
1184         name = rte_vdev_device_name(vdev);
1185         if (name == NULL)
1186                 return -EINVAL;
1187
1188         bbdev = rte_bbdev_get_named_dev(name);
1189         if (bbdev == NULL)
1190                 return -EINVAL;
1191
1192         rte_free(bbdev->data->dev_private);
1193
1194         return rte_bbdev_release(bbdev);
1195 }
1196
1197 static struct rte_vdev_driver bbdev_turbo_sw_pmd_drv = {
1198         .probe = turbo_sw_bbdev_probe,
1199         .remove = turbo_sw_bbdev_remove
1200 };
1201
1202 RTE_PMD_REGISTER_VDEV(DRIVER_NAME, bbdev_turbo_sw_pmd_drv);
1203 RTE_PMD_REGISTER_PARAM_STRING(DRIVER_NAME,
1204         TURBO_SW_MAX_NB_QUEUES_ARG"=<int> "
1205         TURBO_SW_SOCKET_ID_ARG"=<int>");
1206
1207 RTE_INIT(null_bbdev_init_log);
1208 static void
1209 null_bbdev_init_log(void)
1210 {
1211         bbdev_turbo_sw_logtype = rte_log_register("pmd.bb.turbo_sw");
1212         if (bbdev_turbo_sw_logtype >= 0)
1213                 rte_log_set_level(bbdev_turbo_sw_logtype, RTE_LOG_NOTICE);
1214 }