drivers/net/dpaa2/dpaa2_ethdev.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright (c) 2016 Freescale Semiconductor, Inc. All rights reserved.
   5  *   Copyright (c) 2016 NXP. All rights reserved.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of Freescale Semiconductor, Inc nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #include <time.h>
  35 #include <net/if.h>
  36
  37 #include <rte_mbuf.h>
  38 #include <rte_ethdev.h>
  39 #include <rte_malloc.h>
  40 #include <rte_memcpy.h>
  41 #include <rte_string_fns.h>
  42 #include <rte_cycles.h>
  43 #include <rte_kvargs.h>
  44 #include <rte_dev.h>
  45 #include <rte_ethdev.h>
  46 #include <rte_fslmc.h>
  47
  48 #include <fslmc_logs.h>
  49 #include <fslmc_vfio.h>
  50 #include <dpaa2_hw_pvt.h>
  51
  52 #include "dpaa2_ethdev.h"
  53
  54 static struct rte_dpaa2_driver rte_dpaa2_pmd;
  55
  56 static void
  57 dpaa2_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
  58 {
  59         struct dpaa2_dev_priv *priv = dev->data->dev_private;
  60
  61         PMD_INIT_FUNC_TRACE();
  62
  63         dev_info->if_index = priv->hw_id;
  64
  65         dev_info->max_rx_queues = (uint16_t)priv->nb_rx_queues;
  66         dev_info->max_tx_queues = (uint16_t)priv->nb_tx_queues;
  67
  68         dev_info->speed_capa = ETH_LINK_SPEED_1G |
  69                         ETH_LINK_SPEED_2_5G |
  70                         ETH_LINK_SPEED_10G;
  71 }
  72
  73 static int
  74 dpaa2_alloc_rx_tx_queues(struct rte_eth_dev *dev)
  75 {
  76         struct dpaa2_dev_priv *priv = dev->data->dev_private;
  77         uint16_t dist_idx;
  78         uint32_t vq_id;
  79         struct dpaa2_queue *mc_q, *mcq;
  80         uint32_t tot_queues;
  81         int i;
  82         struct dpaa2_queue *dpaa2_q;
  83
  84         PMD_INIT_FUNC_TRACE();
  85
  86         tot_queues = priv->nb_rx_queues + priv->nb_tx_queues;
  87         mc_q = rte_malloc(NULL, sizeof(struct dpaa2_queue) * tot_queues,
  88                           RTE_CACHE_LINE_SIZE);
  89         if (!mc_q) {
  90                 PMD_INIT_LOG(ERR, "malloc failed for rx/tx queues\n");
  91                 return -1;
  92         }
  93
  94         for (i = 0; i < priv->nb_rx_queues; i++) {
  95                 mc_q->dev = dev;
  96                 priv->rx_vq[i] = mc_q++;
  97                 dpaa2_q = (struct dpaa2_queue *)priv->rx_vq[i];
  98                 dpaa2_q->q_storage = rte_malloc("dq_storage",
  99                                         sizeof(struct queue_storage_info_t),
 100                                         RTE_CACHE_LINE_SIZE);
 101                 if (!dpaa2_q->q_storage)
 102                         goto fail;
 103
 104                 memset(dpaa2_q->q_storage, 0,
 105                        sizeof(struct queue_storage_info_t));
 106                 dpaa2_q->q_storage->dq_storage[0] = rte_malloc(NULL,
 107                         DPAA2_DQRR_RING_SIZE * sizeof(struct qbman_result),
 108                         RTE_CACHE_LINE_SIZE);
 109         }
 110
 111         for (i = 0; i < priv->nb_tx_queues; i++) {
 112                 mc_q->dev = dev;
 113                 mc_q->flow_id = DPNI_NEW_FLOW_ID;
 114                 priv->tx_vq[i] = mc_q++;
 115         }
 116
 117         vq_id = 0;
 118         for (dist_idx = 0; dist_idx < priv->nb_rx_queues; dist_idx++) {
 119                 mcq = (struct dpaa2_queue *)priv->rx_vq[vq_id];
 120                 mcq->tc_index = DPAA2_DEF_TC;
 121                 mcq->flow_id = dist_idx;
 122                 vq_id++;
 123         }
 124
 125         return 0;
 126 fail:
 127         i -= 1;
 128         mc_q = priv->rx_vq[0];
 129         while (i >= 0) {
 130                 dpaa2_q = (struct dpaa2_queue *)priv->rx_vq[i];
 131                 rte_free(dpaa2_q->q_storage->dq_storage[0]);
 132                 rte_free(dpaa2_q->q_storage);
 133                 priv->rx_vq[i--] = NULL;
 134         }
 135         rte_free(mc_q);
 136         return -1;
 137 }
 138
 139 static int
 140 dpaa2_eth_dev_configure(struct rte_eth_dev *dev)
 141 {
 142         struct rte_eth_dev_data *data = dev->data;
 143         struct rte_eth_conf *eth_conf = &data->dev_conf;
 144
 145         PMD_INIT_FUNC_TRACE();
 146
 147         /* Check for correct configuration */
 148         if (eth_conf->rxmode.mq_mode != ETH_MQ_RX_RSS &&
 149             data->nb_rx_queues > 1) {
 150                 PMD_INIT_LOG(ERR, "Distribution is not enabled, "
 151                             "but Rx queues more than 1\n");
 152                 return -1;
 153         }
 154
 155         return 0;
 156 }
 157
 158 /* Function to setup RX flow information. It contains traffic class ID,
 159  * flow ID, destination configuration etc.
 160  */
 161 static int
 162 dpaa2_dev_rx_queue_setup(struct rte_eth_dev *dev,
 163                          uint16_t rx_queue_id,
 164                          uint16_t nb_rx_desc __rte_unused,
 165                          unsigned int socket_id __rte_unused,
 166                          const struct rte_eth_rxconf *rx_conf __rte_unused,
 167                          struct rte_mempool *mb_pool)
 168 {
 169         struct dpaa2_dev_priv *priv = dev->data->dev_private;
 170         struct fsl_mc_io *dpni = (struct fsl_mc_io *)priv->hw;
 171         struct dpaa2_queue *dpaa2_q;
 172         struct dpni_queue cfg;
 173         uint8_t options = 0;
 174         uint8_t flow_id;
 175         int ret;
 176
 177         PMD_INIT_FUNC_TRACE();
 178
 179         PMD_INIT_LOG(DEBUG, "dev =%p, queue =%d, pool = %p, conf =%p",
 180                      dev, rx_queue_id, mb_pool, rx_conf);
 181
 182         dpaa2_q = (struct dpaa2_queue *)priv->rx_vq[rx_queue_id];
 183         dpaa2_q->mb_pool = mb_pool; /**< mbuf pool to populate RX ring. */
 184
 185         /*Get the tc id and flow id from given VQ id*/
 186         flow_id = rx_queue_id;
 187         memset(&cfg, 0, sizeof(struct dpni_queue));
 188
 189         options = options | DPNI_QUEUE_OPT_USER_CTX;
 190         cfg.user_context = (uint64_t)(dpaa2_q);
 191
 192         ret = dpni_set_queue(dpni, CMD_PRI_LOW, priv->token, DPNI_QUEUE_RX,
 193                              dpaa2_q->tc_index, flow_id, options, &cfg);
 194         if (ret) {
 195                 PMD_INIT_LOG(ERR, "Error in setting the rx flow: = %d\n", ret);
 196                 return -1;
 197         }
 198
 199         dev->data->rx_queues[rx_queue_id] = dpaa2_q;
 200         return 0;
 201 }
 202
 203 static int
 204 dpaa2_dev_tx_queue_setup(struct rte_eth_dev *dev,
 205                          uint16_t tx_queue_id,
 206                          uint16_t nb_tx_desc __rte_unused,
 207                          unsigned int socket_id __rte_unused,
 208                          const struct rte_eth_txconf *tx_conf __rte_unused)
 209 {
 210         struct dpaa2_dev_priv *priv = dev->data->dev_private;
 211         struct dpaa2_queue *dpaa2_q = (struct dpaa2_queue *)
 212                 priv->tx_vq[tx_queue_id];
 213         struct fsl_mc_io *dpni = priv->hw;
 214         struct dpni_queue tx_conf_cfg;
 215         struct dpni_queue tx_flow_cfg;
 216         uint8_t options = 0, flow_id;
 217         uint32_t tc_id;
 218         int ret;
 219
 220         PMD_INIT_FUNC_TRACE();
 221
 222         /* Return if queue already configured */
 223         if (dpaa2_q->flow_id != DPNI_NEW_FLOW_ID)
 224                 return 0;
 225
 226         memset(&tx_conf_cfg, 0, sizeof(struct dpni_queue));
 227         memset(&tx_flow_cfg, 0, sizeof(struct dpni_queue));
 228
 229         tc_id = 0;
 230         flow_id = tx_queue_id;
 231
 232         ret = dpni_set_queue(dpni, CMD_PRI_LOW, priv->token, DPNI_QUEUE_TX,
 233                              tc_id, flow_id, options, &tx_flow_cfg);
 234         if (ret) {
 235                 PMD_INIT_LOG(ERR, "Error in setting the tx flow: "
 236                              "tc_id=%d, flow =%d ErrorCode = %x\n",
 237                              tc_id, flow_id, -ret);
 238                         return -1;
 239         }
 240
 241         dpaa2_q->flow_id = flow_id;
 242
 243         if (tx_queue_id == 0) {
 244                 /*Set tx-conf and error configuration*/
 245                 ret = dpni_set_tx_confirmation_mode(dpni, CMD_PRI_LOW,
 246                                                     priv->token,
 247                                                     DPNI_CONF_DISABLE);
 248                 if (ret) {
 249                         PMD_INIT_LOG(ERR, "Error in set tx conf mode settings"
 250                                      " ErrorCode = %x", ret);
 251                         return -1;
 252                 }
 253         }
 254         dpaa2_q->tc_index = tc_id;
 255
 256         dev->data->tx_queues[tx_queue_id] = dpaa2_q;
 257         return 0;
 258 }
 259
 260 static void
 261 dpaa2_dev_rx_queue_release(void *q __rte_unused)
 262 {
 263         PMD_INIT_FUNC_TRACE();
 264 }
 265
 266 static void
 267 dpaa2_dev_tx_queue_release(void *q __rte_unused)
 268 {
 269         PMD_INIT_FUNC_TRACE();
 270 }
 271
 272 static int
 273 dpaa2_dev_start(struct rte_eth_dev *dev)
 274 {
 275         struct rte_eth_dev_data *data = dev->data;
 276         struct dpaa2_dev_priv *priv = data->dev_private;
 277         struct fsl_mc_io *dpni = (struct fsl_mc_io *)priv->hw;
 278         struct dpni_queue cfg;
 279         uint16_t qdid;
 280         struct dpni_queue_id qid;
 281         struct dpaa2_queue *dpaa2_q;
 282         int ret, i;
 283
 284         PMD_INIT_FUNC_TRACE();
 285
 286         ret = dpni_enable(dpni, CMD_PRI_LOW, priv->token);
 287         if (ret) {
 288                 PMD_INIT_LOG(ERR, "Failure %d in enabling dpni %d device\n",
 289                              ret, priv->hw_id);
 290                 return ret;
 291         }
 292
 293         ret = dpni_get_qdid(dpni, CMD_PRI_LOW, priv->token,
 294                             DPNI_QUEUE_TX, &qdid);
 295         if (ret) {
 296                 PMD_INIT_LOG(ERR, "Error to get qdid:ErrorCode = %d\n", ret);
 297                 return ret;
 298         }
 299         priv->qdid = qdid;
 300
 301         for (i = 0; i < data->nb_rx_queues; i++) {
 302                 dpaa2_q = (struct dpaa2_queue *)data->rx_queues[i];
 303                 ret = dpni_get_queue(dpni, CMD_PRI_LOW, priv->token,
 304                                      DPNI_QUEUE_RX, dpaa2_q->tc_index,
 305                                        dpaa2_q->flow_id, &cfg, &qid);
 306                 if (ret) {
 307                         PMD_INIT_LOG(ERR, "Error to get flow "
 308                                      "information Error code = %d\n", ret);
 309                         return ret;
 310                 }
 311                 dpaa2_q->fqid = qid.fqid;
 312         }
 313
 314         return 0;
 315 }
 316
 317 /**
 318  *  This routine disables all traffic on the adapter by issuing a
 319  *  global reset on the MAC.
 320  */
 321 static void
 322 dpaa2_dev_stop(struct rte_eth_dev *dev)
 323 {
 324         struct dpaa2_dev_priv *priv = dev->data->dev_private;
 325         struct fsl_mc_io *dpni = (struct fsl_mc_io *)priv->hw;
 326         int ret;
 327
 328         PMD_INIT_FUNC_TRACE();
 329
 330         ret = dpni_disable(dpni, CMD_PRI_LOW, priv->token);
 331         if (ret) {
 332                 PMD_INIT_LOG(ERR, "Failure (ret %d) in disabling dpni %d dev\n",
 333                              ret, priv->hw_id);
 334                 return;
 335         }
 336 }
 337
 338 static void
 339 dpaa2_dev_close(struct rte_eth_dev *dev)
 340 {
 341         struct dpaa2_dev_priv *priv = dev->data->dev_private;
 342         struct fsl_mc_io *dpni = (struct fsl_mc_io *)priv->hw;
 343         int ret;
 344
 345         PMD_INIT_FUNC_TRACE();
 346
 347         /* Clean the device first */
 348         ret = dpni_reset(dpni, CMD_PRI_LOW, priv->token);
 349         if (ret) {
 350                 PMD_INIT_LOG(ERR, "Failure cleaning dpni device with"
 351                              " error code %d\n", ret);
 352                 return;
 353         }
 354 }
 355
 356 static struct eth_dev_ops dpaa2_ethdev_ops = {
 357         .dev_configure    = dpaa2_eth_dev_configure,
 358         .dev_start            = dpaa2_dev_start,
 359         .dev_stop             = dpaa2_dev_stop,
 360         .dev_close            = dpaa2_dev_close,
 361         .dev_infos_get     = dpaa2_dev_info_get,
 362         .rx_queue_setup    = dpaa2_dev_rx_queue_setup,
 363         .rx_queue_release  = dpaa2_dev_rx_queue_release,
 364         .tx_queue_setup    = dpaa2_dev_tx_queue_setup,
 365         .tx_queue_release  = dpaa2_dev_tx_queue_release,
 366 };
 367
 368 static int
 369 dpaa2_dev_init(struct rte_eth_dev *eth_dev)
 370 {
 371         struct rte_device *dev = eth_dev->device;
 372         struct rte_dpaa2_device *dpaa2_dev;
 373         struct fsl_mc_io *dpni_dev;
 374         struct dpni_attr attr;
 375         struct dpaa2_dev_priv *priv = eth_dev->data->dev_private;
 376         int ret, hw_id;
 377
 378         PMD_INIT_FUNC_TRACE();
 379
 380         /* For secondary processes, the primary has done all the work */
 381         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 382                 return 0;
 383
 384         dpaa2_dev = container_of(dev, struct rte_dpaa2_device, device);
 385
 386         hw_id = dpaa2_dev->object_id;
 387
 388         dpni_dev = (struct fsl_mc_io *)malloc(sizeof(struct fsl_mc_io));
 389         if (!dpni_dev) {
 390                 PMD_INIT_LOG(ERR, "malloc failed for dpni device\n");
 391                 return -1;
 392         }
 393
 394         dpni_dev->regs = rte_mcp_ptr_list[0];
 395         ret = dpni_open(dpni_dev, CMD_PRI_LOW, hw_id, &priv->token);
 396         if (ret) {
 397                 PMD_INIT_LOG(ERR, "Failure in opening dpni@%d device with"
 398                         " error code %d\n", hw_id, ret);
 399                 return -1;
 400         }
 401
 402         /* Clean the device first */
 403         ret = dpni_reset(dpni_dev, CMD_PRI_LOW, priv->token);
 404         if (ret) {
 405                 PMD_INIT_LOG(ERR, "Failure cleaning dpni@%d device with"
 406                         " error code %d\n", hw_id, ret);
 407                 return -1;
 408         }
 409
 410         ret = dpni_get_attributes(dpni_dev, CMD_PRI_LOW, priv->token, &attr);
 411         if (ret) {
 412                 PMD_INIT_LOG(ERR, "Failure in getting dpni@%d attribute, "
 413                         " error code %d\n", hw_id, ret);
 414                 return -1;
 415         }
 416
 417         priv->num_tc = attr.num_tcs;
 418         priv->nb_rx_queues = attr.num_queues;
 419         priv->nb_tx_queues = attr.num_queues;
 420
 421         priv->hw = dpni_dev;
 422         priv->hw_id = hw_id;
 423         priv->flags = 0;
 424
 425         /* Allocate memory for hardware structure for queues */
 426         ret = dpaa2_alloc_rx_tx_queues(eth_dev);
 427         if (ret) {
 428                 PMD_INIT_LOG(ERR, "dpaa2_alloc_rx_tx_queuesFailed\n");
 429                 return -ret;
 430         }
 431
 432         eth_dev->dev_ops = &dpaa2_ethdev_ops;
 433         eth_dev->data->drv_name = rte_dpaa2_pmd.driver.name;
 434
 435         return 0;
 436 }
 437
 438 static int
 439 dpaa2_dev_uninit(struct rte_eth_dev *eth_dev)
 440 {
 441         struct dpaa2_dev_priv *priv = eth_dev->data->dev_private;
 442         struct fsl_mc_io *dpni = (struct fsl_mc_io *)priv->hw;
 443         int i, ret;
 444         struct dpaa2_queue *dpaa2_q;
 445
 446         PMD_INIT_FUNC_TRACE();
 447
 448         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 449                 return -EPERM;
 450
 451         if (!dpni) {
 452                 PMD_INIT_LOG(WARNING, "Already closed or not started");
 453                 return -1;
 454         }
 455
 456         dpaa2_dev_close(eth_dev);
 457
 458         if (priv->rx_vq[0]) {
 459                 /* cleaning up queue storage */
 460                 for (i = 0; i < priv->nb_rx_queues; i++) {
 461                         dpaa2_q = (struct dpaa2_queue *)priv->rx_vq[i];
 462                         if (dpaa2_q->q_storage)
 463                                 rte_free(dpaa2_q->q_storage);
 464                 }
 465                 /*free the all queue memory */
 466                 rte_free(priv->rx_vq[0]);
 467                 priv->rx_vq[0] = NULL;
 468         }
 469
 470
 471         /*Close the device at underlying layer*/
 472         ret = dpni_close(dpni, CMD_PRI_LOW, priv->token);
 473         if (ret) {
 474                 PMD_INIT_LOG(ERR, "Failure closing dpni device with"
 475                         " error code %d\n", ret);
 476         }
 477
 478         /*Free the allocated memory for ethernet private data and dpni*/
 479         priv->hw = NULL;
 480         free(dpni);
 481
 482         eth_dev->dev_ops = NULL;
 483
 484         return 0;
 485 }
 486
 487 static int
 488 rte_dpaa2_probe(struct rte_dpaa2_driver *dpaa2_drv __rte_unused,
 489                 struct rte_dpaa2_device *dpaa2_dev)
 490 {
 491         struct rte_eth_dev *eth_dev;
 492         char ethdev_name[RTE_ETH_NAME_MAX_LEN];
 493
 494         int diag;
 495
 496         sprintf(ethdev_name, "dpni-%d", dpaa2_dev->object_id);
 497
 498         eth_dev = rte_eth_dev_allocate(ethdev_name);
 499         if (eth_dev == NULL)
 500                 return -ENOMEM;
 501
 502         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 503                 eth_dev->data->dev_private = rte_zmalloc(
 504                                                 "ethdev private structure",
 505                                                 sizeof(struct dpaa2_dev_priv),
 506                                                 RTE_CACHE_LINE_SIZE);
 507                 if (eth_dev->data->dev_private == NULL) {
 508                         PMD_INIT_LOG(CRIT, "Cannot allocate memzone for"
 509                                      " private port data\n");
 510                         rte_eth_dev_release_port(eth_dev);
 511                         return -ENOMEM;
 512                 }
 513         }
 514         eth_dev->device = &dpaa2_dev->device;
 515         dpaa2_dev->eth_dev = eth_dev;
 516         eth_dev->data->rx_mbuf_alloc_failed = 0;
 517
 518         /* Invoke PMD device initialization function */
 519         diag = dpaa2_dev_init(eth_dev);
 520         if (diag == 0)
 521                 return 0;
 522
 523         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 524                 rte_free(eth_dev->data->dev_private);
 525         rte_eth_dev_release_port(eth_dev);
 526         return diag;
 527 }
 528
 529 static int
 530 rte_dpaa2_remove(struct rte_dpaa2_device *dpaa2_dev)
 531 {
 532         struct rte_eth_dev *eth_dev;
 533
 534         eth_dev = dpaa2_dev->eth_dev;
 535         dpaa2_dev_uninit(eth_dev);
 536
 537         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 538                 rte_free(eth_dev->data->dev_private);
 539         rte_eth_dev_release_port(eth_dev);
 540
 541         return 0;
 542 }
 543
 544 static struct rte_dpaa2_driver rte_dpaa2_pmd = {
 545         .drv_type = DPAA2_MC_DPNI_DEVID,
 546         .probe = rte_dpaa2_probe,
 547         .remove = rte_dpaa2_remove,
 548 };
 549
 550 RTE_PMD_REGISTER_DPAA2(net_dpaa2, rte_dpaa2_pmd);