drivers/net/dpaa/dpaa_ethdev.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright 2016 Freescale Semiconductor, Inc. All rights reserved.
   5  *   Copyright 2017 NXP.
   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 /* System headers */
  34 #include <stdio.h>
  35 #include <inttypes.h>
  36 #include <unistd.h>
  37 #include <limits.h>
  38 #include <sched.h>
  39 #include <signal.h>
  40 #include <pthread.h>
  41 #include <sys/types.h>
  42 #include <sys/syscall.h>
  43
  44 #include <rte_config.h>
  45 #include <rte_byteorder.h>
  46 #include <rte_common.h>
  47 #include <rte_interrupts.h>
  48 #include <rte_log.h>
  49 #include <rte_debug.h>
  50 #include <rte_pci.h>
  51 #include <rte_atomic.h>
  52 #include <rte_branch_prediction.h>
  53 #include <rte_memory.h>
  54 #include <rte_memzone.h>
  55 #include <rte_tailq.h>
  56 #include <rte_eal.h>
  57 #include <rte_alarm.h>
  58 #include <rte_ether.h>
  59 #include <rte_ethdev.h>
  60 #include <rte_malloc.h>
  61 #include <rte_ring.h>
  62
  63 #include <rte_dpaa_bus.h>
  64 #include <rte_dpaa_logs.h>
  65 #include <dpaa_mempool.h>
  66
  67 #include <dpaa_ethdev.h>
  68 #include <dpaa_rxtx.h>
  69
  70 #include <fsl_usd.h>
  71 #include <fsl_qman.h>
  72 #include <fsl_bman.h>
  73 #include <fsl_fman.h>
  74
  75 /* Keep track of whether QMAN and BMAN have been globally initialized */
  76 static int is_global_init;
  77
  78 static int
  79 dpaa_eth_dev_configure(struct rte_eth_dev *dev __rte_unused)
  80 {
  81         PMD_INIT_FUNC_TRACE();
  82
  83         return 0;
  84 }
  85
  86 static int dpaa_eth_dev_start(struct rte_eth_dev *dev)
  87 {
  88         struct dpaa_if *dpaa_intf = dev->data->dev_private;
  89
  90         PMD_INIT_FUNC_TRACE();
  91
  92         /* Change tx callback to the real one */
  93         dev->tx_pkt_burst = dpaa_eth_queue_tx;
  94         fman_if_enable_rx(dpaa_intf->fif);
  95
  96         return 0;
  97 }
  98
  99 static void dpaa_eth_dev_stop(struct rte_eth_dev *dev)
 100 {
 101         struct dpaa_if *dpaa_intf = dev->data->dev_private;
 102
 103         PMD_INIT_FUNC_TRACE();
 104
 105         fman_if_disable_rx(dpaa_intf->fif);
 106         dev->tx_pkt_burst = dpaa_eth_tx_drop_all;
 107 }
 108
 109 static void dpaa_eth_dev_close(struct rte_eth_dev *dev)
 110 {
 111         PMD_INIT_FUNC_TRACE();
 112
 113         dpaa_eth_dev_stop(dev);
 114 }
 115
 116 static
 117 int dpaa_eth_rx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
 118                             uint16_t nb_desc __rte_unused,
 119                             unsigned int socket_id __rte_unused,
 120                             const struct rte_eth_rxconf *rx_conf __rte_unused,
 121                             struct rte_mempool *mp)
 122 {
 123         struct dpaa_if *dpaa_intf = dev->data->dev_private;
 124
 125         PMD_INIT_FUNC_TRACE();
 126
 127         DPAA_PMD_INFO("Rx queue setup for queue index: %d", queue_idx);
 128
 129         if (!dpaa_intf->bp_info || dpaa_intf->bp_info->mp != mp) {
 130                 struct fman_if_ic_params icp;
 131                 uint32_t fd_offset;
 132                 uint32_t bp_size;
 133
 134                 if (!mp->pool_data) {
 135                         DPAA_PMD_ERR("Not an offloaded buffer pool!");
 136                         return -1;
 137                 }
 138                 dpaa_intf->bp_info = DPAA_MEMPOOL_TO_POOL_INFO(mp);
 139
 140                 memset(&icp, 0, sizeof(icp));
 141                 /* set ICEOF for to the default value , which is 0*/
 142                 icp.iciof = DEFAULT_ICIOF;
 143                 icp.iceof = DEFAULT_RX_ICEOF;
 144                 icp.icsz = DEFAULT_ICSZ;
 145                 fman_if_set_ic_params(dpaa_intf->fif, &icp);
 146
 147                 fd_offset = RTE_PKTMBUF_HEADROOM + DPAA_HW_BUF_RESERVE;
 148                 fman_if_set_fdoff(dpaa_intf->fif, fd_offset);
 149
 150                 /* Buffer pool size should be equal to Dataroom Size*/
 151                 bp_size = rte_pktmbuf_data_room_size(mp);
 152                 fman_if_set_bp(dpaa_intf->fif, mp->size,
 153                                dpaa_intf->bp_info->bpid, bp_size);
 154                 dpaa_intf->valid = 1;
 155                 DPAA_PMD_INFO("if =%s - fd_offset = %d offset = %d",
 156                             dpaa_intf->name, fd_offset,
 157                         fman_if_get_fdoff(dpaa_intf->fif));
 158         }
 159         dev->data->rx_queues[queue_idx] = &dpaa_intf->rx_queues[queue_idx];
 160
 161         return 0;
 162 }
 163
 164 static
 165 void dpaa_eth_rx_queue_release(void *rxq __rte_unused)
 166 {
 167         PMD_INIT_FUNC_TRACE();
 168 }
 169
 170 static
 171 int dpaa_eth_tx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
 172                             uint16_t nb_desc __rte_unused,
 173                 unsigned int socket_id __rte_unused,
 174                 const struct rte_eth_txconf *tx_conf __rte_unused)
 175 {
 176         struct dpaa_if *dpaa_intf = dev->data->dev_private;
 177
 178         PMD_INIT_FUNC_TRACE();
 179
 180         DPAA_PMD_INFO("Tx queue setup for queue index: %d", queue_idx);
 181         dev->data->tx_queues[queue_idx] = &dpaa_intf->tx_queues[queue_idx];
 182         return 0;
 183 }
 184
 185 static void dpaa_eth_tx_queue_release(void *txq __rte_unused)
 186 {
 187         PMD_INIT_FUNC_TRACE();
 188 }
 189
 190 static struct eth_dev_ops dpaa_devops = {
 191         .dev_configure            = dpaa_eth_dev_configure,
 192         .dev_start                = dpaa_eth_dev_start,
 193         .dev_stop                 = dpaa_eth_dev_stop,
 194         .dev_close                = dpaa_eth_dev_close,
 195
 196         .rx_queue_setup           = dpaa_eth_rx_queue_setup,
 197         .tx_queue_setup           = dpaa_eth_tx_queue_setup,
 198         .rx_queue_release         = dpaa_eth_rx_queue_release,
 199         .tx_queue_release         = dpaa_eth_tx_queue_release,
 200 };
 201
 202 /* Initialise an Rx FQ */
 203 static int dpaa_rx_queue_init(struct qman_fq *fq,
 204                               uint32_t fqid)
 205 {
 206         struct qm_mcc_initfq opts;
 207         int ret;
 208
 209         PMD_INIT_FUNC_TRACE();
 210
 211         ret = qman_reserve_fqid(fqid);
 212         if (ret) {
 213                 DPAA_PMD_ERR("reserve rx fqid %d failed with ret: %d",
 214                              fqid, ret);
 215                 return -EINVAL;
 216         }
 217
 218         DPAA_PMD_DEBUG("creating rx fq %p, fqid %d", fq, fqid);
 219         ret = qman_create_fq(fqid, QMAN_FQ_FLAG_NO_ENQUEUE, fq);
 220         if (ret) {
 221                 DPAA_PMD_ERR("create rx fqid %d failed with ret: %d",
 222                         fqid, ret);
 223                 return ret;
 224         }
 225
 226         opts.we_mask = QM_INITFQ_WE_DESTWQ | QM_INITFQ_WE_FQCTRL |
 227                        QM_INITFQ_WE_CONTEXTA;
 228
 229         opts.fqd.dest.wq = DPAA_IF_RX_PRIORITY;
 230         opts.fqd.fq_ctrl = QM_FQCTRL_AVOIDBLOCK | QM_FQCTRL_CTXASTASHING |
 231                            QM_FQCTRL_PREFERINCACHE;
 232         opts.fqd.context_a.stashing.exclusive = 0;
 233         opts.fqd.context_a.stashing.annotation_cl = DPAA_IF_RX_ANNOTATION_STASH;
 234         opts.fqd.context_a.stashing.data_cl = DPAA_IF_RX_DATA_STASH;
 235         opts.fqd.context_a.stashing.context_cl = DPAA_IF_RX_CONTEXT_STASH;
 236
 237         /*Enable tail drop */
 238         opts.we_mask = opts.we_mask | QM_INITFQ_WE_TDTHRESH;
 239         opts.fqd.fq_ctrl = opts.fqd.fq_ctrl | QM_FQCTRL_TDE;
 240         qm_fqd_taildrop_set(&opts.fqd.td, CONG_THRESHOLD_RX_Q, 1);
 241
 242         ret = qman_init_fq(fq, 0, &opts);
 243         if (ret)
 244                 DPAA_PMD_ERR("init rx fqid %d failed with ret: %d", fqid, ret);
 245         return ret;
 246 }
 247
 248 /* Initialise a Tx FQ */
 249 static int dpaa_tx_queue_init(struct qman_fq *fq,
 250                               struct fman_if *fman_intf)
 251 {
 252         struct qm_mcc_initfq opts;
 253         int ret;
 254
 255         PMD_INIT_FUNC_TRACE();
 256
 257         ret = qman_create_fq(0, QMAN_FQ_FLAG_DYNAMIC_FQID |
 258                              QMAN_FQ_FLAG_TO_DCPORTAL, fq);
 259         if (ret) {
 260                 DPAA_PMD_ERR("create tx fq failed with ret: %d", ret);
 261                 return ret;
 262         }
 263         opts.we_mask = QM_INITFQ_WE_DESTWQ | QM_INITFQ_WE_FQCTRL |
 264                        QM_INITFQ_WE_CONTEXTB | QM_INITFQ_WE_CONTEXTA;
 265         opts.fqd.dest.channel = fman_intf->tx_channel_id;
 266         opts.fqd.dest.wq = DPAA_IF_TX_PRIORITY;
 267         opts.fqd.fq_ctrl = QM_FQCTRL_PREFERINCACHE;
 268         opts.fqd.context_b = 0;
 269         /* no tx-confirmation */
 270         opts.fqd.context_a.hi = 0x80000000 | fman_dealloc_bufs_mask_hi;
 271         opts.fqd.context_a.lo = 0 | fman_dealloc_bufs_mask_lo;
 272         DPAA_PMD_DEBUG("init tx fq %p, fqid %d", fq, fq->fqid);
 273         ret = qman_init_fq(fq, QMAN_INITFQ_FLAG_SCHED, &opts);
 274         if (ret)
 275                 DPAA_PMD_ERR("init tx fqid %d failed %d", fq->fqid, ret);
 276         return ret;
 277 }
 278
 279 /* Initialise a network interface */
 280 static int
 281 dpaa_dev_init(struct rte_eth_dev *eth_dev)
 282 {
 283         int num_cores, num_rx_fqs, fqid;
 284         int loop, ret = 0;
 285         int dev_id;
 286         struct rte_dpaa_device *dpaa_device;
 287         struct dpaa_if *dpaa_intf;
 288         struct fm_eth_port_cfg *cfg;
 289         struct fman_if *fman_intf;
 290         struct fman_if_bpool *bp, *tmp_bp;
 291
 292         PMD_INIT_FUNC_TRACE();
 293
 294         /* For secondary processes, the primary has done all the work */
 295         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 296                 return 0;
 297
 298         dpaa_device = DEV_TO_DPAA_DEVICE(eth_dev->device);
 299         dev_id = dpaa_device->id.dev_id;
 300         dpaa_intf = eth_dev->data->dev_private;
 301         cfg = &dpaa_netcfg->port_cfg[dev_id];
 302         fman_intf = cfg->fman_if;
 303
 304         dpaa_intf->name = dpaa_device->name;
 305
 306         /* save fman_if & cfg in the interface struture */
 307         dpaa_intf->fif = fman_intf;
 308         dpaa_intf->ifid = dev_id;
 309         dpaa_intf->cfg = cfg;
 310
 311         /* Initialize Rx FQ's */
 312         if (getenv("DPAA_NUM_RX_QUEUES"))
 313                 num_rx_fqs = atoi(getenv("DPAA_NUM_RX_QUEUES"));
 314         else
 315                 num_rx_fqs = DPAA_DEFAULT_NUM_PCD_QUEUES;
 316
 317         /* Each device can not have more than DPAA_PCD_FQID_MULTIPLIER RX
 318          * queues.
 319          */
 320         if (num_rx_fqs <= 0 || num_rx_fqs > DPAA_PCD_FQID_MULTIPLIER) {
 321                 DPAA_PMD_ERR("Invalid number of RX queues\n");
 322                 return -EINVAL;
 323         }
 324
 325         dpaa_intf->rx_queues = rte_zmalloc(NULL,
 326                 sizeof(struct qman_fq) * num_rx_fqs, MAX_CACHELINE);
 327         for (loop = 0; loop < num_rx_fqs; loop++) {
 328                 fqid = DPAA_PCD_FQID_START + dpaa_intf->ifid *
 329                         DPAA_PCD_FQID_MULTIPLIER + loop;
 330                 ret = dpaa_rx_queue_init(&dpaa_intf->rx_queues[loop], fqid);
 331                 if (ret)
 332                         return ret;
 333                 dpaa_intf->rx_queues[loop].dpaa_intf = dpaa_intf;
 334         }
 335         dpaa_intf->nb_rx_queues = num_rx_fqs;
 336
 337         /* Initialise Tx FQs. Have as many Tx FQ's as number of cores */
 338         num_cores = rte_lcore_count();
 339         dpaa_intf->tx_queues = rte_zmalloc(NULL, sizeof(struct qman_fq) *
 340                 num_cores, MAX_CACHELINE);
 341         if (!dpaa_intf->tx_queues)
 342                 return -ENOMEM;
 343
 344         for (loop = 0; loop < num_cores; loop++) {
 345                 ret = dpaa_tx_queue_init(&dpaa_intf->tx_queues[loop],
 346                                          fman_intf);
 347                 if (ret)
 348                         return ret;
 349                 dpaa_intf->tx_queues[loop].dpaa_intf = dpaa_intf;
 350         }
 351         dpaa_intf->nb_tx_queues = num_cores;
 352
 353         DPAA_PMD_DEBUG("All frame queues created");
 354
 355         /* reset bpool list, initialize bpool dynamically */
 356         list_for_each_entry_safe(bp, tmp_bp, &cfg->fman_if->bpool_list, node) {
 357                 list_del(&bp->node);
 358                 rte_free(bp);
 359         }
 360
 361         /* Populate ethdev structure */
 362         eth_dev->dev_ops = &dpaa_devops;
 363         eth_dev->rx_pkt_burst = dpaa_eth_queue_rx;
 364         eth_dev->tx_pkt_burst = dpaa_eth_tx_drop_all;
 365
 366         /* Allocate memory for storing MAC addresses */
 367         eth_dev->data->mac_addrs = rte_zmalloc("mac_addr",
 368                 ETHER_ADDR_LEN * DPAA_MAX_MAC_FILTER, 0);
 369         if (eth_dev->data->mac_addrs == NULL) {
 370                 DPAA_PMD_ERR("Failed to allocate %d bytes needed to "
 371                                                 "store MAC addresses",
 372                                 ETHER_ADDR_LEN * DPAA_MAX_MAC_FILTER);
 373                 rte_free(dpaa_intf->rx_queues);
 374                 rte_free(dpaa_intf->tx_queues);
 375                 dpaa_intf->rx_queues = NULL;
 376                 dpaa_intf->tx_queues = NULL;
 377                 dpaa_intf->nb_rx_queues = 0;
 378                 dpaa_intf->nb_tx_queues = 0;
 379                 return -ENOMEM;
 380         }
 381
 382         /* copy the primary mac address */
 383         ether_addr_copy(&fman_intf->mac_addr, &eth_dev->data->mac_addrs[0]);
 384
 385         RTE_LOG(INFO, PMD, "net: dpaa: %s: %02x:%02x:%02x:%02x:%02x:%02x\n",
 386                 dpaa_device->name,
 387                 fman_intf->mac_addr.addr_bytes[0],
 388                 fman_intf->mac_addr.addr_bytes[1],
 389                 fman_intf->mac_addr.addr_bytes[2],
 390                 fman_intf->mac_addr.addr_bytes[3],
 391                 fman_intf->mac_addr.addr_bytes[4],
 392                 fman_intf->mac_addr.addr_bytes[5]);
 393
 394         /* Disable RX mode */
 395         fman_if_discard_rx_errors(fman_intf);
 396         fman_if_disable_rx(fman_intf);
 397         /* Disable promiscuous mode */
 398         fman_if_promiscuous_disable(fman_intf);
 399         /* Disable multicast */
 400         fman_if_reset_mcast_filter_table(fman_intf);
 401         /* Reset interface statistics */
 402         fman_if_stats_reset(fman_intf);
 403
 404         return 0;
 405 }
 406
 407 static int
 408 dpaa_dev_uninit(struct rte_eth_dev *dev)
 409 {
 410         struct dpaa_if *dpaa_intf = dev->data->dev_private;
 411
 412         PMD_INIT_FUNC_TRACE();
 413
 414         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 415                 return -EPERM;
 416
 417         if (!dpaa_intf) {
 418                 DPAA_PMD_WARN("Already closed or not started");
 419                 return -1;
 420         }
 421
 422         dpaa_eth_dev_close(dev);
 423
 424         /* release configuration memory */
 425         if (dpaa_intf->fc_conf)
 426                 rte_free(dpaa_intf->fc_conf);
 427
 428         rte_free(dpaa_intf->rx_queues);
 429         dpaa_intf->rx_queues = NULL;
 430
 431         rte_free(dpaa_intf->tx_queues);
 432         dpaa_intf->tx_queues = NULL;
 433
 434         /* free memory for storing MAC addresses */
 435         rte_free(dev->data->mac_addrs);
 436         dev->data->mac_addrs = NULL;
 437
 438         dev->dev_ops = NULL;
 439         dev->rx_pkt_burst = NULL;
 440         dev->tx_pkt_burst = NULL;
 441
 442         return 0;
 443 }
 444
 445 static int
 446 rte_dpaa_probe(struct rte_dpaa_driver *dpaa_drv,
 447                struct rte_dpaa_device *dpaa_dev)
 448 {
 449         int diag;
 450         int ret;
 451         struct rte_eth_dev *eth_dev;
 452
 453         PMD_INIT_FUNC_TRACE();
 454
 455         /* In case of secondary process, the device is already configured
 456          * and no further action is required, except portal initialization
 457          * and verifying secondary attachment to port name.
 458          */
 459         if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
 460                 eth_dev = rte_eth_dev_attach_secondary(dpaa_dev->name);
 461                 if (!eth_dev)
 462                         return -ENOMEM;
 463                 return 0;
 464         }
 465
 466         if (!is_global_init) {
 467                 /* One time load of Qman/Bman drivers */
 468                 ret = qman_global_init();
 469                 if (ret) {
 470                         DPAA_PMD_ERR("QMAN initialization failed: %d",
 471                                      ret);
 472                         return ret;
 473                 }
 474                 ret = bman_global_init();
 475                 if (ret) {
 476                         DPAA_PMD_ERR("BMAN initialization failed: %d",
 477                                      ret);
 478                         return ret;
 479                 }
 480
 481                 is_global_init = 1;
 482         }
 483
 484         ret = rte_dpaa_portal_init((void *)1);
 485         if (ret) {
 486                 DPAA_PMD_ERR("Unable to initialize portal");
 487                 return ret;
 488         }
 489
 490         eth_dev = rte_eth_dev_allocate(dpaa_dev->name);
 491         if (eth_dev == NULL)
 492                 return -ENOMEM;
 493
 494         eth_dev->data->dev_private = rte_zmalloc(
 495                                         "ethdev private structure",
 496                                         sizeof(struct dpaa_if),
 497                                         RTE_CACHE_LINE_SIZE);
 498         if (!eth_dev->data->dev_private) {
 499                 DPAA_PMD_ERR("Cannot allocate memzone for port data");
 500                 rte_eth_dev_release_port(eth_dev);
 501                 return -ENOMEM;
 502         }
 503
 504         eth_dev->device = &dpaa_dev->device;
 505         eth_dev->device->driver = &dpaa_drv->driver;
 506         dpaa_dev->eth_dev = eth_dev;
 507
 508         /* Invoke PMD device initialization function */
 509         diag = dpaa_dev_init(eth_dev);
 510         if (diag == 0)
 511                 return 0;
 512
 513         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 514                 rte_free(eth_dev->data->dev_private);
 515
 516         rte_eth_dev_release_port(eth_dev);
 517         return diag;
 518 }
 519
 520 static int
 521 rte_dpaa_remove(struct rte_dpaa_device *dpaa_dev)
 522 {
 523         struct rte_eth_dev *eth_dev;
 524
 525         PMD_INIT_FUNC_TRACE();
 526
 527         eth_dev = dpaa_dev->eth_dev;
 528         dpaa_dev_uninit(eth_dev);
 529
 530         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 531                 rte_free(eth_dev->data->dev_private);
 532
 533         rte_eth_dev_release_port(eth_dev);
 534
 535         return 0;
 536 }
 537
 538 static struct rte_dpaa_driver rte_dpaa_pmd = {
 539         .drv_type = FSL_DPAA_ETH,
 540         .probe = rte_dpaa_probe,
 541         .remove = rte_dpaa_remove,
 542 };
 543
 544 RTE_PMD_REGISTER_DPAA(net_dpaa, rte_dpaa_pmd);