drivers/crypto/ccp/ccp_pmd_ops.c

   1 /*   SPDX-License-Identifier: BSD-3-Clause
   2  *   Copyright(c) 2018 Advanced Micro Devices, Inc. All rights reserved.
   3  */
   4
   5 #include <string.h>
   6
   7 #include <rte_common.h>
   8 #include <rte_cryptodev_pmd.h>
   9 #include <rte_malloc.h>
  10
  11 #include "ccp_pmd_private.h"
  12 #include "ccp_dev.h"
  13 #include "ccp_crypto.h"
  14
  15 static const struct rte_cryptodev_capabilities ccp_pmd_capabilities[] = {
  16         {       /* SHA1 */
  17                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
  18                 {.sym = {
  19                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
  20                         {.auth = {
  21                                  .algo = RTE_CRYPTO_AUTH_SHA1,
  22                                  .block_size = 64,
  23                                  .key_size = {
  24                                          .min = 0,
  25                                          .max = 0,
  26                                          .increment = 0
  27                                  },
  28                                  .digest_size = {
  29                                          .min = 20,
  30                                          .max = 20,
  31                                          .increment = 0
  32                                  },
  33                                  .aad_size = { 0 }
  34                          }, }
  35                 }, }
  36         },
  37         {       /* SHA1 HMAC */
  38                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
  39                 {.sym = {
  40                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
  41                         {.auth = {
  42                                  .algo = RTE_CRYPTO_AUTH_SHA1_HMAC,
  43                                  .block_size = 64,
  44                                  .key_size = {
  45                                          .min = 1,
  46                                          .max = 64,
  47                                          .increment = 1
  48                                  },
  49                                  .digest_size = {
  50                                          .min = 20,
  51                                          .max = 20,
  52                                          .increment = 0
  53                                  },
  54                                  .aad_size = { 0 }
  55                          }, }
  56                 }, }
  57         },
  58         {       /*AES-CMAC */
  59                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
  60                 {.sym = {
  61                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
  62                         {.auth = {
  63                                  .algo = RTE_CRYPTO_AUTH_AES_CMAC,
  64                                  .block_size = 16,
  65                                  .key_size = {
  66                                          .min = 16,
  67                                          .max = 32,
  68                                          .increment = 8
  69                                  },
  70                                  .digest_size = {
  71                                          .min = 16,
  72                                          .max = 16,
  73                                          .increment = 0
  74                                  },
  75                         }, }
  76                 }, }
  77         },
  78         {       /* AES ECB */
  79                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
  80                 {.sym = {
  81                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
  82                         {.cipher = {
  83                                 .algo = RTE_CRYPTO_CIPHER_AES_ECB,
  84                                 .block_size = 16,
  85                                 .key_size = {
  86                                    .min = 16,
  87                                    .max = 32,
  88                                    .increment = 8
  89                                 },
  90                                 .iv_size = {
  91                                    .min = 0,
  92                                    .max = 0,
  93                                    .increment = 0
  94                                 }
  95                         }, }
  96                 }, }
  97         },
  98         {       /* AES CBC */
  99                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 100                 {.sym = {
 101                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 102                         {.cipher = {
 103                                 .algo = RTE_CRYPTO_CIPHER_AES_CBC,
 104                                 .block_size = 16,
 105                                 .key_size = {
 106                                         .min = 16,
 107                                         .max = 32,
 108                                         .increment = 8
 109                                 },
 110                                 .iv_size = {
 111                                         .min = 16,
 112                                         .max = 16,
 113                                         .increment = 0
 114                                 }
 115                         }, }
 116                 }, }
 117         },
 118         {       /* AES CTR */
 119                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 120                 {.sym = {
 121                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 122                         {.cipher = {
 123                                 .algo = RTE_CRYPTO_CIPHER_AES_CTR,
 124                                 .block_size = 16,
 125                                 .key_size = {
 126                                         .min = 16,
 127                                         .max = 32,
 128                                         .increment = 8
 129                                 },
 130                                 .iv_size = {
 131                                         .min = 16,
 132                                         .max = 16,
 133                                         .increment = 0
 134                                 }
 135                         }, }
 136                 }, }
 137         },
 138         {       /* 3DES CBC */
 139                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 140                 {.sym = {
 141                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 142                         {.cipher = {
 143                                 .algo = RTE_CRYPTO_CIPHER_3DES_CBC,
 144                                 .block_size = 8,
 145                                 .key_size = {
 146                                         .min = 16,
 147                                         .max = 24,
 148                                         .increment = 8
 149                                 },
 150                                 .iv_size = {
 151                                         .min = 8,
 152                                         .max = 8,
 153                                         .increment = 0
 154                                 }
 155                         }, }
 156                 }, }
 157         },
 158         {       /* AES GCM */
 159                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 160                 {.sym = {
 161                         .xform_type = RTE_CRYPTO_SYM_XFORM_AEAD,
 162                         {.aead = {
 163                                  .algo = RTE_CRYPTO_AEAD_AES_GCM,
 164                                  .block_size = 16,
 165                                  .key_size = {
 166                                          .min = 16,
 167                                          .max = 32,
 168                                          .increment = 8
 169                                  },
 170                                  .digest_size = {
 171                                          .min = 16,
 172                                          .max = 16,
 173                                          .increment = 0
 174                                  },
 175                                  .aad_size = {
 176                                          .min = 0,
 177                                          .max = 65535,
 178                                          .increment = 1
 179                                  },
 180                                  .iv_size = {
 181                                          .min = 12,
 182                                          .max = 16,
 183                                          .increment = 4
 184                                  },
 185                         }, }
 186                 }, }
 187         },
 188         RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
 189 };
 190
 191 static int
 192 ccp_pmd_config(struct rte_cryptodev *dev __rte_unused,
 193                struct rte_cryptodev_config *config __rte_unused)
 194 {
 195         return 0;
 196 }
 197
 198 static int
 199 ccp_pmd_start(struct rte_cryptodev *dev)
 200 {
 201         return ccp_dev_start(dev);
 202 }
 203
 204 static void
 205 ccp_pmd_stop(struct rte_cryptodev *dev __rte_unused)
 206 {
 207
 208 }
 209
 210 static int
 211 ccp_pmd_close(struct rte_cryptodev *dev __rte_unused)
 212 {
 213         return 0;
 214 }
 215
 216 static void
 217 ccp_pmd_stats_get(struct rte_cryptodev *dev,
 218                   struct rte_cryptodev_stats *stats)
 219 {
 220         int qp_id;
 221
 222         for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
 223                 struct ccp_qp *qp = dev->data->queue_pairs[qp_id];
 224
 225                 stats->enqueued_count += qp->qp_stats.enqueued_count;
 226                 stats->dequeued_count += qp->qp_stats.dequeued_count;
 227
 228                 stats->enqueue_err_count += qp->qp_stats.enqueue_err_count;
 229                 stats->dequeue_err_count += qp->qp_stats.dequeue_err_count;
 230         }
 231
 232 }
 233
 234 static void
 235 ccp_pmd_stats_reset(struct rte_cryptodev *dev)
 236 {
 237         int qp_id;
 238
 239         for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
 240                 struct ccp_qp *qp = dev->data->queue_pairs[qp_id];
 241
 242                 memset(&qp->qp_stats, 0, sizeof(qp->qp_stats));
 243         }
 244 }
 245
 246 static void
 247 ccp_pmd_info_get(struct rte_cryptodev *dev,
 248                  struct rte_cryptodev_info *dev_info)
 249 {
 250         struct ccp_private *internals = dev->data->dev_private;
 251
 252         if (dev_info != NULL) {
 253                 dev_info->driver_id = dev->driver_id;
 254                 dev_info->feature_flags = dev->feature_flags;
 255                 dev_info->capabilities = ccp_pmd_capabilities;
 256                 dev_info->max_nb_queue_pairs = internals->max_nb_qpairs;
 257                 dev_info->sym.max_nb_sessions = internals->max_nb_sessions;
 258         }
 259 }
 260
 261 static int
 262 ccp_pmd_qp_release(struct rte_cryptodev *dev, uint16_t qp_id)
 263 {
 264         struct ccp_qp *qp;
 265
 266         if (dev->data->queue_pairs[qp_id] != NULL) {
 267                 qp = (struct ccp_qp *)dev->data->queue_pairs[qp_id];
 268                 rte_ring_free(qp->processed_pkts);
 269                 rte_mempool_free(qp->batch_mp);
 270                 rte_free(qp);
 271                 dev->data->queue_pairs[qp_id] = NULL;
 272         }
 273         return 0;
 274 }
 275
 276 static int
 277 ccp_pmd_qp_set_unique_name(struct rte_cryptodev *dev,
 278                 struct ccp_qp *qp)
 279 {
 280         unsigned int n = snprintf(qp->name, sizeof(qp->name),
 281                         "ccp_pmd_%u_qp_%u",
 282                         dev->data->dev_id, qp->id);
 283
 284         if (n > sizeof(qp->name))
 285                 return -1;
 286
 287         return 0;
 288 }
 289
 290 static struct rte_ring *
 291 ccp_pmd_qp_create_batch_info_ring(struct ccp_qp *qp,
 292                                   unsigned int ring_size, int socket_id)
 293 {
 294         struct rte_ring *r;
 295
 296         r = rte_ring_lookup(qp->name);
 297         if (r) {
 298                 if (r->size >= ring_size) {
 299                         CCP_LOG_INFO(
 300                                 "Reusing ring %s for processed packets",
 301                                 qp->name);
 302                         return r;
 303                 }
 304                 CCP_LOG_INFO(
 305                         "Unable to reuse ring %s for processed packets",
 306                          qp->name);
 307                 return NULL;
 308         }
 309
 310         return rte_ring_create(qp->name, ring_size, socket_id,
 311                         RING_F_SP_ENQ | RING_F_SC_DEQ);
 312 }
 313
 314 static int
 315 ccp_pmd_qp_setup(struct rte_cryptodev *dev, uint16_t qp_id,
 316                  const struct rte_cryptodev_qp_conf *qp_conf,
 317                  int socket_id, struct rte_mempool *session_pool)
 318 {
 319         struct ccp_private *internals = dev->data->dev_private;
 320         struct ccp_qp *qp;
 321         int retval = 0;
 322
 323         if (qp_id >= internals->max_nb_qpairs) {
 324                 CCP_LOG_ERR("Invalid qp_id %u, should be less than %u",
 325                             qp_id, internals->max_nb_qpairs);
 326                 return (-EINVAL);
 327         }
 328
 329         /* Free memory prior to re-allocation if needed. */
 330         if (dev->data->queue_pairs[qp_id] != NULL)
 331                 ccp_pmd_qp_release(dev, qp_id);
 332
 333         /* Allocate the queue pair data structure. */
 334         qp = rte_zmalloc_socket("CCP Crypto PMD Queue Pair", sizeof(*qp),
 335                                         RTE_CACHE_LINE_SIZE, socket_id);
 336         if (qp == NULL) {
 337                 CCP_LOG_ERR("Failed to allocate queue pair memory");
 338                 return (-ENOMEM);
 339         }
 340
 341         qp->dev = dev;
 342         qp->id = qp_id;
 343         dev->data->queue_pairs[qp_id] = qp;
 344
 345         retval = ccp_pmd_qp_set_unique_name(dev, qp);
 346         if (retval) {
 347                 CCP_LOG_ERR("Failed to create unique name for ccp qp");
 348                 goto qp_setup_cleanup;
 349         }
 350
 351         qp->processed_pkts = ccp_pmd_qp_create_batch_info_ring(qp,
 352                         qp_conf->nb_descriptors, socket_id);
 353         if (qp->processed_pkts == NULL) {
 354                 CCP_LOG_ERR("Failed to create batch info ring");
 355                 goto qp_setup_cleanup;
 356         }
 357
 358         qp->sess_mp = session_pool;
 359
 360         /* mempool for batch info */
 361         qp->batch_mp = rte_mempool_create(
 362                                 qp->name,
 363                                 qp_conf->nb_descriptors,
 364                                 sizeof(struct ccp_batch_info),
 365                                 RTE_CACHE_LINE_SIZE,
 366                                 0, NULL, NULL, NULL, NULL,
 367                                 SOCKET_ID_ANY, 0);
 368         if (qp->batch_mp == NULL)
 369                 goto qp_setup_cleanup;
 370         memset(&qp->qp_stats, 0, sizeof(qp->qp_stats));
 371         return 0;
 372
 373 qp_setup_cleanup:
 374         dev->data->queue_pairs[qp_id] = NULL;
 375         if (qp)
 376                 rte_free(qp);
 377         return -1;
 378 }
 379
 380 static int
 381 ccp_pmd_qp_start(struct rte_cryptodev *dev __rte_unused,
 382                  uint16_t queue_pair_id __rte_unused)
 383 {
 384         return -ENOTSUP;
 385 }
 386
 387 static int
 388 ccp_pmd_qp_stop(struct rte_cryptodev *dev __rte_unused,
 389                 uint16_t queue_pair_id __rte_unused)
 390 {
 391         return -ENOTSUP;
 392 }
 393
 394 static uint32_t
 395 ccp_pmd_qp_count(struct rte_cryptodev *dev)
 396 {
 397         return dev->data->nb_queue_pairs;
 398 }
 399
 400 static unsigned
 401 ccp_pmd_session_get_size(struct rte_cryptodev *dev __rte_unused)
 402 {
 403         return sizeof(struct ccp_session);
 404 }
 405
 406 static int
 407 ccp_pmd_session_configure(struct rte_cryptodev *dev,
 408                           struct rte_crypto_sym_xform *xform,
 409                           struct rte_cryptodev_sym_session *sess,
 410                           struct rte_mempool *mempool)
 411 {
 412         int ret;
 413         void *sess_private_data;
 414
 415         if (unlikely(sess == NULL || xform == NULL)) {
 416                 CCP_LOG_ERR("Invalid session struct or xform");
 417                 return -ENOMEM;
 418         }
 419
 420         if (rte_mempool_get(mempool, &sess_private_data)) {
 421                 CCP_LOG_ERR("Couldn't get object from session mempool");
 422                 return -ENOMEM;
 423         }
 424         ret = ccp_set_session_parameters(sess_private_data, xform);
 425         if (ret != 0) {
 426                 CCP_LOG_ERR("failed configure session parameters");
 427
 428                 /* Return session to mempool */
 429                 rte_mempool_put(mempool, sess_private_data);
 430                 return ret;
 431         }
 432         set_session_private_data(sess, dev->driver_id,
 433                                  sess_private_data);
 434
 435         return 0;
 436 }
 437
 438 static void
 439 ccp_pmd_session_clear(struct rte_cryptodev *dev,
 440                       struct rte_cryptodev_sym_session *sess)
 441 {
 442         uint8_t index = dev->driver_id;
 443         void *sess_priv = get_session_private_data(sess, index);
 444
 445         if (sess_priv) {
 446                 struct rte_mempool *sess_mp = rte_mempool_from_obj(sess_priv);
 447
 448                 rte_mempool_put(sess_mp, sess_priv);
 449                 memset(sess_priv, 0, sizeof(struct ccp_session));
 450                 set_session_private_data(sess, index, NULL);
 451         }
 452 }
 453
 454 struct rte_cryptodev_ops ccp_ops = {
 455                 .dev_configure          = ccp_pmd_config,
 456                 .dev_start              = ccp_pmd_start,
 457                 .dev_stop               = ccp_pmd_stop,
 458                 .dev_close              = ccp_pmd_close,
 459
 460                 .stats_get              = ccp_pmd_stats_get,
 461                 .stats_reset            = ccp_pmd_stats_reset,
 462
 463                 .dev_infos_get          = ccp_pmd_info_get,
 464
 465                 .queue_pair_setup       = ccp_pmd_qp_setup,
 466                 .queue_pair_release     = ccp_pmd_qp_release,
 467                 .queue_pair_start       = ccp_pmd_qp_start,
 468                 .queue_pair_stop        = ccp_pmd_qp_stop,
 469                 .queue_pair_count       = ccp_pmd_qp_count,
 470
 471                 .session_get_size       = ccp_pmd_session_get_size,
 472                 .session_configure      = ccp_pmd_session_configure,
 473                 .session_clear          = ccp_pmd_session_clear,
 474 };
 475
 476 struct rte_cryptodev_ops *ccp_pmd_ops = &ccp_ops;