drivers/net/pfe/pfe_ethdev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright 2019 NXP
   3  */
   4
   5 #include <sys/epoll.h>
   6 #include <rte_kvargs.h>
   7 #include <rte_ethdev_vdev.h>
   8 #include <rte_bus_vdev.h>
   9 #include <dpaa_of.h>
  10
  11 #include "pfe_logs.h"
  12 #include "pfe_mod.h"
  13
  14 #define PFE_MAX_MACS 1 /*we can support upto 4 MACs per IF*/
  15 #define PFE_VDEV_GEM_ID_ARG     "intf"
  16
  17 struct pfe_vdev_init_params {
  18         int8_t  gem_id;
  19 };
  20 static struct pfe *g_pfe;
  21 /* Supported Rx offloads */
  22 static uint64_t dev_rx_offloads_sup =
  23                 DEV_RX_OFFLOAD_IPV4_CKSUM |
  24                 DEV_RX_OFFLOAD_UDP_CKSUM |
  25                 DEV_RX_OFFLOAD_TCP_CKSUM;
  26
  27 /* Supported Tx offloads */
  28 static uint64_t dev_tx_offloads_sup =
  29                 DEV_TX_OFFLOAD_IPV4_CKSUM |
  30                 DEV_TX_OFFLOAD_UDP_CKSUM |
  31                 DEV_TX_OFFLOAD_TCP_CKSUM;
  32
  33 /* TODO: make pfe_svr a runtime option.
  34  * Driver should be able to get the SVR
  35  * information from HW.
  36  */
  37 unsigned int pfe_svr = SVR_LS1012A_REV1;
  38 static void *cbus_emac_base[3];
  39 static void *cbus_gpi_base[3];
  40
  41 int pfe_logtype_pmd;
  42
  43 /* pfe_gemac_init
  44  */
  45 static int
  46 pfe_gemac_init(struct pfe_eth_priv_s *priv)
  47 {
  48         struct gemac_cfg cfg;
  49
  50         cfg.speed = SPEED_1000M;
  51         cfg.duplex = DUPLEX_FULL;
  52
  53         gemac_set_config(priv->EMAC_baseaddr, &cfg);
  54         gemac_allow_broadcast(priv->EMAC_baseaddr);
  55         gemac_enable_1536_rx(priv->EMAC_baseaddr);
  56         gemac_enable_stacked_vlan(priv->EMAC_baseaddr);
  57         gemac_enable_pause_rx(priv->EMAC_baseaddr);
  58         gemac_set_bus_width(priv->EMAC_baseaddr, 64);
  59         gemac_enable_rx_checksum_offload(priv->EMAC_baseaddr);
  60
  61         return 0;
  62 }
  63
  64 static void
  65 pfe_soc_version_get(void)
  66 {
  67         FILE *svr_file = NULL;
  68         unsigned int svr_ver = 0;
  69
  70         PMD_INIT_FUNC_TRACE();
  71
  72         svr_file = fopen(PFE_SOC_ID_FILE, "r");
  73         if (!svr_file) {
  74                 PFE_PMD_ERR("Unable to open SoC device");
  75                 return; /* Not supported on this infra */
  76         }
  77
  78         if (fscanf(svr_file, "svr:%x", &svr_ver) > 0)
  79                 pfe_svr = svr_ver;
  80         else
  81                 PFE_PMD_ERR("Unable to read SoC device");
  82
  83         fclose(svr_file);
  84 }
  85
  86 static int pfe_eth_start(struct pfe_eth_priv_s *priv)
  87 {
  88         gpi_enable(priv->GPI_baseaddr);
  89         gemac_enable(priv->EMAC_baseaddr);
  90
  91         return 0;
  92 }
  93
  94 static void
  95 pfe_eth_flush_txQ(struct pfe_eth_priv_s *priv, int tx_q_num, int
  96                   __rte_unused from_tx, __rte_unused int n_desc)
  97 {
  98         struct rte_mbuf *mbuf;
  99         unsigned int flags;
 100
 101         /* Clean HIF and client queue */
 102         while ((mbuf = hif_lib_tx_get_next_complete(&priv->client,
 103                                                    tx_q_num, &flags,
 104                                                    HIF_TX_DESC_NT))) {
 105                 if (mbuf) {
 106                         mbuf->next = NULL;
 107                         mbuf->nb_segs = 1;
 108                         rte_pktmbuf_free(mbuf);
 109                 }
 110         }
 111 }
 112
 113
 114 static void
 115 pfe_eth_flush_tx(struct pfe_eth_priv_s *priv)
 116 {
 117         unsigned int ii;
 118
 119         for (ii = 0; ii < emac_txq_cnt; ii++)
 120                 pfe_eth_flush_txQ(priv, ii, 0, 0);
 121 }
 122
 123 static int
 124 pfe_eth_event_handler(void *data, int event, __rte_unused int qno)
 125 {
 126         struct pfe_eth_priv_s *priv = data;
 127
 128         switch (event) {
 129         case EVENT_TXDONE_IND:
 130                 pfe_eth_flush_tx(priv);
 131                 hif_lib_event_handler_start(&priv->client, EVENT_TXDONE_IND, 0);
 132                 break;
 133         case EVENT_HIGH_RX_WM:
 134         default:
 135                 break;
 136         }
 137
 138         return 0;
 139 }
 140
 141 static uint16_t
 142 pfe_recv_pkts_on_intr(void *rxq, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
 143 {
 144         struct hif_client_rx_queue *queue = rxq;
 145         struct pfe_eth_priv_s *priv = queue->priv;
 146         struct epoll_event epoll_ev;
 147         uint64_t ticks = 1;  /* 1 msec */
 148         int ret;
 149         int have_something, work_done;
 150
 151 #define RESET_STATUS (HIF_INT | HIF_RXPKT_INT)
 152
 153         /*TODO can we remove this cleanup from here?*/
 154         pfe_tx_do_cleanup(priv->pfe);
 155         have_something = pfe_hif_rx_process(priv->pfe, nb_pkts);
 156         work_done = hif_lib_receive_pkt(rxq, priv->pfe->hif.shm->pool,
 157                         rx_pkts, nb_pkts);
 158
 159         if (!have_something || !work_done) {
 160                 writel(RESET_STATUS, HIF_INT_SRC);
 161                 writel(readl(HIF_INT_ENABLE) | HIF_RXPKT_INT, HIF_INT_ENABLE);
 162                 ret = epoll_wait(priv->pfe->hif.epoll_fd, &epoll_ev, 1, ticks);
 163                 if (ret < 0 && errno != EINTR)
 164                         PFE_PMD_ERR("epoll_wait fails with %d\n", errno);
 165         }
 166
 167         return work_done;
 168 }
 169
 170 static uint16_t
 171 pfe_recv_pkts(void *rxq, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
 172 {
 173         struct hif_client_rx_queue *queue = rxq;
 174         struct pfe_eth_priv_s *priv = queue->priv;
 175         struct rte_mempool *pool;
 176
 177         /*TODO can we remove this cleanup from here?*/
 178         pfe_tx_do_cleanup(priv->pfe);
 179         pfe_hif_rx_process(priv->pfe, nb_pkts);
 180         pool = priv->pfe->hif.shm->pool;
 181
 182         return hif_lib_receive_pkt(rxq, pool, rx_pkts, nb_pkts);
 183 }
 184
 185 static uint16_t
 186 pfe_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
 187 {
 188         struct hif_client_tx_queue *queue = tx_queue;
 189         struct pfe_eth_priv_s *priv = queue->priv;
 190         struct rte_eth_stats *stats = &priv->stats;
 191         int i;
 192
 193         for (i = 0; i < nb_pkts; i++) {
 194                 if (tx_pkts[i]->nb_segs > 1) {
 195                         struct rte_mbuf *mbuf;
 196                         int j;
 197
 198                         hif_lib_xmit_pkt(&priv->client, queue->queue_id,
 199                                 (void *)(size_t)rte_pktmbuf_iova(tx_pkts[i]),
 200                                 tx_pkts[i]->buf_addr + tx_pkts[i]->data_off,
 201                                 tx_pkts[i]->data_len, 0x0, HIF_FIRST_BUFFER,
 202                                 tx_pkts[i]);
 203
 204                         mbuf = tx_pkts[i]->next;
 205                         for (j = 0; j < (tx_pkts[i]->nb_segs - 2); j++) {
 206                                 hif_lib_xmit_pkt(&priv->client, queue->queue_id,
 207                                         (void *)(size_t)rte_pktmbuf_iova(mbuf),
 208                                         mbuf->buf_addr + mbuf->data_off,
 209                                         mbuf->data_len,
 210                                         0x0, 0x0, mbuf);
 211                                 mbuf = mbuf->next;
 212                         }
 213
 214                         hif_lib_xmit_pkt(&priv->client, queue->queue_id,
 215                                         (void *)(size_t)rte_pktmbuf_iova(mbuf),
 216                                         mbuf->buf_addr + mbuf->data_off,
 217                                         mbuf->data_len,
 218                                         0x0, HIF_LAST_BUFFER | HIF_DATA_VALID,
 219                                         mbuf);
 220                 } else {
 221                         hif_lib_xmit_pkt(&priv->client, queue->queue_id,
 222                                 (void *)(size_t)rte_pktmbuf_iova(tx_pkts[i]),
 223                                 tx_pkts[i]->buf_addr + tx_pkts[i]->data_off,
 224                                 tx_pkts[i]->pkt_len, 0 /*ctrl*/,
 225                                 HIF_FIRST_BUFFER | HIF_LAST_BUFFER |
 226                                 HIF_DATA_VALID,
 227                                 tx_pkts[i]);
 228                 }
 229                 stats->obytes += tx_pkts[i]->pkt_len;
 230                 hif_tx_dma_start();
 231         }
 232         stats->opackets += nb_pkts;
 233         pfe_tx_do_cleanup(priv->pfe);
 234
 235         return nb_pkts;
 236 }
 237
 238 static uint16_t
 239 pfe_dummy_xmit_pkts(__rte_unused void *tx_queue,
 240                 __rte_unused struct rte_mbuf **tx_pkts,
 241                 __rte_unused uint16_t nb_pkts)
 242 {
 243         return 0;
 244 }
 245
 246 static uint16_t
 247 pfe_dummy_recv_pkts(__rte_unused void *rxq,
 248                 __rte_unused struct rte_mbuf **rx_pkts,
 249                 __rte_unused uint16_t nb_pkts)
 250 {
 251         return 0;
 252 }
 253
 254 static int
 255 pfe_eth_open(struct rte_eth_dev *dev)
 256 {
 257         struct pfe_eth_priv_s *priv = dev->data->dev_private;
 258         struct hif_client_s *client;
 259         struct hif_shm *hif_shm;
 260         int rc;
 261
 262         /* Register client driver with HIF */
 263         client = &priv->client;
 264
 265         if (client->pfe) {
 266                 hif_shm = client->pfe->hif.shm;
 267                 /* TODO please remove the below code of if block, once we add
 268                  * the proper cleanup in eth_close
 269                  */
 270                 if (!test_bit(PFE_CL_GEM0 + priv->id,
 271                               &hif_shm->g_client_status[0])) {
 272                         /* Register client driver with HIF */
 273                         memset(client, 0, sizeof(*client));
 274                         client->id = PFE_CL_GEM0 + priv->id;
 275                         client->tx_qn = emac_txq_cnt;
 276                         client->rx_qn = EMAC_RXQ_CNT;
 277                         client->priv = priv;
 278                         client->pfe = priv->pfe;
 279                         client->port_id = dev->data->port_id;
 280                         client->event_handler = pfe_eth_event_handler;
 281
 282                         client->tx_qsize = EMAC_TXQ_DEPTH;
 283                         client->rx_qsize = EMAC_RXQ_DEPTH;
 284
 285                         rc = hif_lib_client_register(client);
 286                         if (rc) {
 287                                 PFE_PMD_ERR("hif_lib_client_register(%d)"
 288                                             " failed", client->id);
 289                                 goto err0;
 290                         }
 291                 } else {
 292                         /* Freeing the packets if already exists */
 293                         int ret = 0;
 294                         struct rte_mbuf *rx_pkts[32];
 295                         /* TODO multiqueue support */
 296                         ret = hif_lib_receive_pkt(&client->rx_q[0],
 297                                                   hif_shm->pool, rx_pkts, 32);
 298                         while (ret) {
 299                                 int i;
 300                                 for (i = 0; i < ret; i++)
 301                                         rte_pktmbuf_free(rx_pkts[i]);
 302                                 ret = hif_lib_receive_pkt(&client->rx_q[0],
 303                                                           hif_shm->pool,
 304                                                           rx_pkts, 32);
 305                         }
 306                 }
 307         } else {
 308                 /* Register client driver with HIF */
 309                 memset(client, 0, sizeof(*client));
 310                 client->id = PFE_CL_GEM0 + priv->id;
 311                 client->tx_qn = emac_txq_cnt;
 312                 client->rx_qn = EMAC_RXQ_CNT;
 313                 client->priv = priv;
 314                 client->pfe = priv->pfe;
 315                 client->port_id = dev->data->port_id;
 316                 client->event_handler = pfe_eth_event_handler;
 317
 318                 client->tx_qsize = EMAC_TXQ_DEPTH;
 319                 client->rx_qsize = EMAC_RXQ_DEPTH;
 320
 321                 rc = hif_lib_client_register(client);
 322                 if (rc) {
 323                         PFE_PMD_ERR("hif_lib_client_register(%d) failed",
 324                                     client->id);
 325                         goto err0;
 326                 }
 327         }
 328         rc = pfe_eth_start(priv);
 329         dev->rx_pkt_burst = &pfe_recv_pkts;
 330         dev->tx_pkt_burst = &pfe_xmit_pkts;
 331         /* If no prefetch is configured. */
 332         if (getenv("PFE_INTR_SUPPORT")) {
 333                 dev->rx_pkt_burst = &pfe_recv_pkts_on_intr;
 334                 PFE_PMD_INFO("PFE INTERRUPT Mode enabled");
 335         }
 336
 337
 338 err0:
 339         return rc;
 340 }
 341
 342 static int
 343 pfe_eth_open_cdev(struct pfe_eth_priv_s *priv)
 344 {
 345         int pfe_cdev_fd;
 346
 347         if (priv == NULL)
 348                 return -1;
 349
 350         pfe_cdev_fd = open(PFE_CDEV_PATH, O_RDONLY);
 351         if (pfe_cdev_fd < 0) {
 352                 PFE_PMD_WARN("Unable to open PFE device file (%s).\n",
 353                              PFE_CDEV_PATH);
 354                 PFE_PMD_WARN("Link status update will not be available.\n");
 355                 priv->link_fd = PFE_CDEV_INVALID_FD;
 356                 return -1;
 357         }
 358
 359         priv->link_fd = pfe_cdev_fd;
 360
 361         return 0;
 362 }
 363
 364 static void
 365 pfe_eth_close_cdev(struct pfe_eth_priv_s *priv)
 366 {
 367         if (priv == NULL)
 368                 return;
 369
 370         if (priv->link_fd != PFE_CDEV_INVALID_FD) {
 371                 close(priv->link_fd);
 372                 priv->link_fd = PFE_CDEV_INVALID_FD;
 373         }
 374 }
 375
 376 static void
 377 pfe_eth_stop(struct rte_eth_dev *dev/*, int wake*/)
 378 {
 379         struct pfe_eth_priv_s *priv = dev->data->dev_private;
 380
 381         gemac_disable(priv->EMAC_baseaddr);
 382         gpi_disable(priv->GPI_baseaddr);
 383
 384         dev->rx_pkt_burst = &pfe_dummy_recv_pkts;
 385         dev->tx_pkt_burst = &pfe_dummy_xmit_pkts;
 386 }
 387
 388 static void
 389 pfe_eth_exit(struct rte_eth_dev *dev, struct pfe *pfe)
 390 {
 391         PMD_INIT_FUNC_TRACE();
 392
 393         pfe_eth_stop(dev);
 394         /* Close the device file for link status */
 395         pfe_eth_close_cdev(dev->data->dev_private);
 396
 397         rte_free(dev->data->mac_addrs);
 398         rte_eth_dev_release_port(dev);
 399         pfe->nb_devs--;
 400 }
 401
 402 static void
 403 pfe_eth_close(struct rte_eth_dev *dev)
 404 {
 405         if (!dev)
 406                 return;
 407
 408         if (!g_pfe)
 409                 return;
 410
 411         pfe_eth_exit(dev, g_pfe);
 412
 413         if (g_pfe->nb_devs == 0) {
 414                 pfe_hif_exit(g_pfe);
 415                 pfe_hif_lib_exit(g_pfe);
 416                 rte_free(g_pfe);
 417                 g_pfe = NULL;
 418         }
 419 }
 420
 421 static int
 422 pfe_eth_configure(struct rte_eth_dev *dev __rte_unused)
 423 {
 424         return 0;
 425 }
 426
 427 static int
 428 pfe_eth_info(struct rte_eth_dev *dev,
 429                 struct rte_eth_dev_info *dev_info)
 430 {
 431         struct pfe_eth_priv_s *internals = dev->data->dev_private;
 432
 433         dev_info->if_index = internals->id;
 434         dev_info->max_mac_addrs = PFE_MAX_MACS;
 435         dev_info->max_rx_queues = dev->data->nb_rx_queues;
 436         dev_info->max_tx_queues = dev->data->nb_tx_queues;
 437         dev_info->min_rx_bufsize = HIF_RX_PKT_MIN_SIZE;
 438         dev_info->rx_offload_capa = dev_rx_offloads_sup;
 439         dev_info->tx_offload_capa = dev_tx_offloads_sup;
 440         if (pfe_svr == SVR_LS1012A_REV1)
 441                 dev_info->max_rx_pktlen = MAX_MTU_ON_REV1 + PFE_ETH_OVERHEAD;
 442         else
 443                 dev_info->max_rx_pktlen = JUMBO_FRAME_SIZE;
 444
 445         return 0;
 446 }
 447
 448 /* Only first mb_pool given on first call of this API will be used
 449  * in whole system, also nb_rx_desc and rx_conf are unused params
 450  */
 451 static int
 452 pfe_rx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
 453                 __rte_unused uint16_t nb_rx_desc,
 454                 __rte_unused unsigned int socket_id,
 455                 __rte_unused const struct rte_eth_rxconf *rx_conf,
 456                 struct rte_mempool *mb_pool)
 457 {
 458         int rc = 0;
 459         struct pfe *pfe;
 460         struct pfe_eth_priv_s *priv = dev->data->dev_private;
 461
 462         pfe = priv->pfe;
 463
 464         if (queue_idx >= EMAC_RXQ_CNT) {
 465                 PFE_PMD_ERR("Invalid queue idx = %d, Max queues = %d",
 466                                 queue_idx, EMAC_RXQ_CNT);
 467                 return -1;
 468         }
 469
 470         if (!pfe->hif.setuped) {
 471                 rc = pfe_hif_shm_init(pfe->hif.shm, mb_pool);
 472                 if (rc) {
 473                         PFE_PMD_ERR("Could not allocate buffer descriptors");
 474                         return -1;
 475                 }
 476
 477                 pfe->hif.shm->pool = mb_pool;
 478                 if (pfe_hif_init_buffers(&pfe->hif)) {
 479                         PFE_PMD_ERR("Could not initialize buffer descriptors");
 480                         return -1;
 481                 }
 482                 hif_init();
 483                 hif_rx_enable();
 484                 hif_tx_enable();
 485                 pfe->hif.setuped = 1;
 486         }
 487         dev->data->rx_queues[queue_idx] = &priv->client.rx_q[queue_idx];
 488         priv->client.rx_q[queue_idx].queue_id = queue_idx;
 489
 490         return 0;
 491 }
 492
 493 static void
 494 pfe_rx_queue_release(void *q __rte_unused)
 495 {
 496         PMD_INIT_FUNC_TRACE();
 497 }
 498
 499 static void
 500 pfe_tx_queue_release(void *q __rte_unused)
 501 {
 502         PMD_INIT_FUNC_TRACE();
 503 }
 504
 505 static int
 506 pfe_tx_queue_setup(struct rte_eth_dev *dev,
 507                    uint16_t queue_idx,
 508                    __rte_unused uint16_t nb_desc,
 509                    __rte_unused unsigned int socket_id,
 510                    __rte_unused const struct rte_eth_txconf *tx_conf)
 511 {
 512         struct pfe_eth_priv_s *priv = dev->data->dev_private;
 513
 514         if (queue_idx >= emac_txq_cnt) {
 515                 PFE_PMD_ERR("Invalid queue idx = %d, Max queues = %d",
 516                                 queue_idx, emac_txq_cnt);
 517                 return -1;
 518         }
 519         dev->data->tx_queues[queue_idx] = &priv->client.tx_q[queue_idx];
 520         priv->client.tx_q[queue_idx].queue_id = queue_idx;
 521         return 0;
 522 }
 523
 524 static const struct eth_dev_ops ops = {
 525         .dev_start = pfe_eth_open,
 526         .dev_stop = pfe_eth_stop,
 527         .dev_close = pfe_eth_close,
 528         .dev_configure = pfe_eth_configure,
 529         .dev_infos_get = pfe_eth_info,
 530         .rx_queue_setup = pfe_rx_queue_setup,
 531         .rx_queue_release  = pfe_rx_queue_release,
 532         .tx_queue_setup = pfe_tx_queue_setup,
 533         .tx_queue_release  = pfe_tx_queue_release,
 534 };
 535
 536 static int
 537 pfe_eth_init(struct rte_vdev_device *vdev, struct pfe *pfe, int id)
 538 {
 539         struct rte_eth_dev *eth_dev = NULL;
 540         struct pfe_eth_priv_s *priv = NULL;
 541         struct ls1012a_eth_platform_data *einfo;
 542         struct ls1012a_pfe_platform_data *pfe_info;
 543         int err;
 544
 545         eth_dev = rte_eth_vdev_allocate(vdev, sizeof(*priv));
 546         if (eth_dev == NULL)
 547                 return -ENOMEM;
 548
 549         /* Extract pltform data */
 550         pfe_info = (struct ls1012a_pfe_platform_data *)&pfe->platform_data;
 551         if (!pfe_info) {
 552                 PFE_PMD_ERR("pfe missing additional platform data");
 553                 err = -ENODEV;
 554                 goto err0;
 555         }
 556
 557         einfo = (struct ls1012a_eth_platform_data *)pfe_info->ls1012a_eth_pdata;
 558
 559         /* einfo never be NULL, but no harm in having this check */
 560         if (!einfo) {
 561                 PFE_PMD_ERR("pfe missing additional gemacs platform data");
 562                 err = -ENODEV;
 563                 goto err0;
 564         }
 565
 566         priv = eth_dev->data->dev_private;
 567         priv->ndev = eth_dev;
 568         priv->id = einfo[id].gem_id;
 569         priv->pfe = pfe;
 570
 571         pfe->eth.eth_priv[id] = priv;
 572
 573         /* Set the info in the priv to the current info */
 574         priv->einfo = &einfo[id];
 575         priv->EMAC_baseaddr = cbus_emac_base[id];
 576         priv->PHY_baseaddr = cbus_emac_base[id];
 577         priv->GPI_baseaddr = cbus_gpi_base[id];
 578
 579 #define HIF_GEMAC_TMUQ_BASE     6
 580         priv->low_tmu_q = HIF_GEMAC_TMUQ_BASE + (id * 2);
 581         priv->high_tmu_q = priv->low_tmu_q + 1;
 582
 583         rte_spinlock_init(&priv->lock);
 584
 585         /* Copy the station address into the dev structure, */
 586         eth_dev->data->mac_addrs = rte_zmalloc("mac_addr",
 587                         ETHER_ADDR_LEN * PFE_MAX_MACS, 0);
 588         if (eth_dev->data->mac_addrs == NULL) {
 589                 PFE_PMD_ERR("Failed to allocate mem %d to store MAC addresses",
 590                         ETHER_ADDR_LEN * PFE_MAX_MACS);
 591                 err = -ENOMEM;
 592                 goto err0;
 593         }
 594
 595         eth_dev->data->mtu = 1500;
 596         eth_dev->dev_ops = &ops;
 597         pfe_eth_stop(eth_dev);
 598         pfe_gemac_init(priv);
 599
 600         eth_dev->data->nb_rx_queues = 1;
 601         eth_dev->data->nb_tx_queues = 1;
 602
 603         /* For link status, open the PFE CDEV; Error from this function
 604          * is silently ignored; In case of error, the link status will not
 605          * be available.
 606          */
 607         pfe_eth_open_cdev(priv);
 608         rte_eth_dev_probing_finish(eth_dev);
 609
 610         return 0;
 611 err0:
 612         rte_eth_dev_release_port(eth_dev);
 613         return err;
 614 }
 615
 616 static int
 617 pfe_get_gemac_if_proprties(struct pfe *pfe,
 618                 __rte_unused const struct device_node *parent,
 619                 unsigned int port, unsigned int if_cnt,
 620                 struct ls1012a_pfe_platform_data *pdata)
 621 {
 622         const struct device_node *gem = NULL;
 623         size_t size;
 624         unsigned int ii = 0, phy_id = 0;
 625         const u32 *addr;
 626         const void *mac_addr;
 627
 628         for (ii = 0; ii < if_cnt; ii++) {
 629                 gem = of_get_next_child(parent, gem);
 630                 if (!gem)
 631                         goto err;
 632                 addr = of_get_property(gem, "reg", &size);
 633                 if (addr && (rte_be_to_cpu_32((unsigned int)*addr) == port))
 634                         break;
 635         }
 636
 637         if (ii >= if_cnt) {
 638                 PFE_PMD_ERR("Failed to find interface = %d", if_cnt);
 639                 goto err;
 640         }
 641
 642         pdata->ls1012a_eth_pdata[port].gem_id = port;
 643
 644         mac_addr = of_get_mac_address(gem);
 645
 646         if (mac_addr) {
 647                 memcpy(pdata->ls1012a_eth_pdata[port].mac_addr, mac_addr,
 648                        ETH_ALEN);
 649         }
 650
 651         addr = of_get_property(gem, "fsl,mdio-mux-val", &size);
 652         if (!addr) {
 653                 PFE_PMD_ERR("Invalid mdio-mux-val....");
 654         } else {
 655                 phy_id = rte_be_to_cpu_32((unsigned int)*addr);
 656                 pdata->ls1012a_eth_pdata[port].mdio_muxval = phy_id;
 657         }
 658         if (pdata->ls1012a_eth_pdata[port].phy_id < 32)
 659                 pfe->mdio_muxval[pdata->ls1012a_eth_pdata[port].phy_id] =
 660                          pdata->ls1012a_eth_pdata[port].mdio_muxval;
 661
 662         return 0;
 663
 664 err:
 665         return -1;
 666 }
 667
 668 /* Parse integer from integer argument */
 669 static int
 670 parse_integer_arg(const char *key __rte_unused,
 671                 const char *value, void *extra_args)
 672 {
 673         int i;
 674         char *end;
 675         errno = 0;
 676
 677         i = strtol(value, &end, 10);
 678         if (*end != 0 || errno != 0 || i < 0 || i > 1) {
 679                 PFE_PMD_ERR("Supported Port IDS are 0 and 1");
 680                 return -EINVAL;
 681         }
 682
 683         *((uint32_t *)extra_args) = i;
 684
 685         return 0;
 686 }
 687
 688 static int
 689 pfe_parse_vdev_init_params(struct pfe_vdev_init_params *params,
 690                            struct rte_vdev_device *dev)
 691 {
 692         struct rte_kvargs *kvlist = NULL;
 693         int ret = 0;
 694
 695         static const char * const pfe_vdev_valid_params[] = {
 696                 PFE_VDEV_GEM_ID_ARG,
 697                 NULL
 698         };
 699
 700         const char *input_args = rte_vdev_device_args(dev);
 701
 702         if (!input_args)
 703                 return -1;
 704
 705         kvlist = rte_kvargs_parse(input_args, pfe_vdev_valid_params);
 706         if (kvlist == NULL)
 707                 return -1;
 708
 709         ret = rte_kvargs_process(kvlist,
 710                                 PFE_VDEV_GEM_ID_ARG,
 711                                 &parse_integer_arg,
 712                                 &params->gem_id);
 713         rte_kvargs_free(kvlist);
 714         return ret;
 715 }
 716
 717 static int
 718 pmd_pfe_probe(struct rte_vdev_device *vdev)
 719 {
 720         const u32 *prop;
 721         const struct device_node *np;
 722         const char *name;
 723         const uint32_t *addr;
 724         uint64_t cbus_addr, ddr_size, cbus_size;
 725         int rc = -1, fd = -1, gem_id;
 726         unsigned int ii, interface_count = 0;
 727         size_t size = 0;
 728         struct pfe_vdev_init_params init_params = {
 729                 .gem_id = -1
 730         };
 731
 732         name = rte_vdev_device_name(vdev);
 733         rc = pfe_parse_vdev_init_params(&init_params, vdev);
 734         if (rc < 0)
 735                 return -EINVAL;
 736
 737         RTE_LOG(INFO, PMD, "Initializing pmd_pfe for %s Given gem-id %d\n",
 738                 name, init_params.gem_id);
 739
 740         if (g_pfe) {
 741                 if (g_pfe->nb_devs >= g_pfe->max_intf) {
 742                         PFE_PMD_ERR("PFE %d dev already created Max is %d",
 743                                 g_pfe->nb_devs, g_pfe->max_intf);
 744                         return -EINVAL;
 745                 }
 746                 goto eth_init;
 747         }
 748
 749         g_pfe = rte_zmalloc(NULL, sizeof(*g_pfe), RTE_CACHE_LINE_SIZE);
 750         if (g_pfe == NULL)
 751                 return  -EINVAL;
 752
 753         /* Load the device-tree driver */
 754         rc = of_init();
 755         if (rc) {
 756                 PFE_PMD_ERR("of_init failed with ret: %d", rc);
 757                 goto err;
 758         }
 759
 760         np = of_find_compatible_node(NULL, NULL, "fsl,pfe");
 761         if (!np) {
 762                 PFE_PMD_ERR("Invalid device node");
 763                 rc = -EINVAL;
 764                 goto err;
 765         }
 766
 767         addr = of_get_address(np, 0, &cbus_size, NULL);
 768         if (!addr) {
 769                 PFE_PMD_ERR("of_get_address cannot return qman address\n");
 770                 goto err;
 771         }
 772         cbus_addr = of_translate_address(np, addr);
 773         if (!cbus_addr) {
 774                 PFE_PMD_ERR("of_translate_address failed\n");
 775                 goto err;
 776         }
 777
 778         addr = of_get_address(np, 1, &ddr_size, NULL);
 779         if (!addr) {
 780                 PFE_PMD_ERR("of_get_address cannot return qman address\n");
 781                 goto err;
 782         }
 783
 784         g_pfe->ddr_phys_baseaddr = of_translate_address(np, addr);
 785         if (!g_pfe->ddr_phys_baseaddr) {
 786                 PFE_PMD_ERR("of_translate_address failed\n");
 787                 goto err;
 788         }
 789
 790         g_pfe->ddr_baseaddr = pfe_mem_ptov(g_pfe->ddr_phys_baseaddr);
 791         g_pfe->ddr_size = ddr_size;
 792         g_pfe->cbus_size = cbus_size;
 793
 794         fd = open("/dev/mem", O_RDWR);
 795         g_pfe->cbus_baseaddr = mmap(NULL, cbus_size, PROT_READ | PROT_WRITE,
 796                                         MAP_SHARED, fd, cbus_addr);
 797         close(fd);
 798         if (g_pfe->cbus_baseaddr == MAP_FAILED) {
 799                 PFE_PMD_ERR("Can not map cbus base");
 800                 rc = -EINVAL;
 801                 goto err;
 802         }
 803
 804         /* Read interface count */
 805         prop = of_get_property(np, "fsl,pfe-num-interfaces", &size);
 806         if (!prop) {
 807                 PFE_PMD_ERR("Failed to read number of interfaces");
 808                 rc = -ENXIO;
 809                 goto err_prop;
 810         }
 811
 812         interface_count = rte_be_to_cpu_32((unsigned int)*prop);
 813         if (interface_count <= 0) {
 814                 PFE_PMD_ERR("No ethernet interface count : %d",
 815                                 interface_count);
 816                 rc = -ENXIO;
 817                 goto err_prop;
 818         }
 819         PFE_PMD_INFO("num interfaces = %d ", interface_count);
 820
 821         g_pfe->max_intf  = interface_count;
 822         g_pfe->platform_data.ls1012a_mdio_pdata[0].phy_mask = 0xffffffff;
 823
 824         for (ii = 0; ii < interface_count; ii++) {
 825                 pfe_get_gemac_if_proprties(g_pfe, np, ii, interface_count,
 826                                            &g_pfe->platform_data);
 827         }
 828
 829         pfe_lib_init(g_pfe->cbus_baseaddr, g_pfe->ddr_baseaddr,
 830                      g_pfe->ddr_phys_baseaddr, g_pfe->ddr_size);
 831
 832         PFE_PMD_INFO("CLASS version: %x", readl(CLASS_VERSION));
 833         PFE_PMD_INFO("TMU version: %x", readl(TMU_VERSION));
 834
 835         PFE_PMD_INFO("BMU1 version: %x", readl(BMU1_BASE_ADDR + BMU_VERSION));
 836         PFE_PMD_INFO("BMU2 version: %x", readl(BMU2_BASE_ADDR + BMU_VERSION));
 837
 838         PFE_PMD_INFO("EGPI1 version: %x", readl(EGPI1_BASE_ADDR + GPI_VERSION));
 839         PFE_PMD_INFO("EGPI2 version: %x", readl(EGPI2_BASE_ADDR + GPI_VERSION));
 840         PFE_PMD_INFO("HGPI version: %x", readl(HGPI_BASE_ADDR + GPI_VERSION));
 841
 842         PFE_PMD_INFO("HIF version: %x", readl(HIF_VERSION));
 843         PFE_PMD_INFO("HIF NOPCY version: %x", readl(HIF_NOCPY_VERSION));
 844
 845         cbus_emac_base[0] = EMAC1_BASE_ADDR;
 846         cbus_emac_base[1] = EMAC2_BASE_ADDR;
 847
 848         cbus_gpi_base[0] = EGPI1_BASE_ADDR;
 849         cbus_gpi_base[1] = EGPI2_BASE_ADDR;
 850
 851         rc = pfe_hif_lib_init(g_pfe);
 852         if (rc < 0)
 853                 goto err_hif_lib;
 854
 855         rc = pfe_hif_init(g_pfe);
 856         if (rc < 0)
 857                 goto err_hif;
 858         pfe_soc_version_get();
 859 eth_init:
 860         if (init_params.gem_id < 0)
 861                 gem_id = g_pfe->nb_devs;
 862         else
 863                 gem_id = init_params.gem_id;
 864
 865         RTE_LOG(INFO, PMD, "Init pmd_pfe for %s gem-id %d(given =%d)\n",
 866                 name, gem_id, init_params.gem_id);
 867
 868         rc = pfe_eth_init(vdev, g_pfe, gem_id);
 869         if (rc < 0)
 870                 goto err_eth;
 871         else
 872                 g_pfe->nb_devs++;
 873
 874         return 0;
 875
 876 err_eth:
 877         pfe_hif_exit(g_pfe);
 878
 879 err_hif:
 880         pfe_hif_lib_exit(g_pfe);
 881
 882 err_hif_lib:
 883 err_prop:
 884         munmap(g_pfe->cbus_baseaddr, cbus_size);
 885 err:
 886         rte_free(g_pfe);
 887         return rc;
 888 }
 889
 890 static int
 891 pmd_pfe_remove(struct rte_vdev_device *vdev)
 892 {
 893         const char *name;
 894         struct rte_eth_dev *eth_dev = NULL;
 895
 896         name = rte_vdev_device_name(vdev);
 897         if (name == NULL)
 898                 return -EINVAL;
 899
 900         PFE_PMD_INFO("Closing eventdev sw device %s", name);
 901
 902         if (!g_pfe)
 903                 return 0;
 904
 905         eth_dev = rte_eth_dev_allocated(name);
 906         if (eth_dev == NULL)
 907                 return -ENODEV;
 908
 909         pfe_eth_exit(eth_dev, g_pfe);
 910         munmap(g_pfe->cbus_baseaddr, g_pfe->cbus_size);
 911
 912         if (g_pfe->nb_devs == 0) {
 913                 pfe_hif_exit(g_pfe);
 914                 pfe_hif_lib_exit(g_pfe);
 915                 rte_free(g_pfe);
 916                 g_pfe = NULL;
 917         }
 918         return 0;
 919 }
 920
 921 static
 922 struct rte_vdev_driver pmd_pfe_drv = {
 923         .probe = pmd_pfe_probe,
 924         .remove = pmd_pfe_remove,
 925 };
 926
 927 RTE_PMD_REGISTER_VDEV(PFE_NAME_PMD, pmd_pfe_drv);
 928 RTE_PMD_REGISTER_PARAM_STRING(PFE_NAME_PMD, PFE_VDEV_GEM_ID_ARG "=<int> ");
 929
 930 RTE_INIT(pfe_pmd_init_log)
 931 {
 932         pfe_logtype_pmd = rte_log_register("pmd.net.pfe");
 933         if (pfe_logtype_pmd >= 0)
 934                 rte_log_set_level(pfe_logtype_pmd, RTE_LOG_NOTICE);
 935 }