drivers/net/pfe/pfe_ethdev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright 2018-2019 NXP
   3  */
   4
   5 #include <sys/ioctl.h>
   6 #include <sys/epoll.h>
   7 #include <rte_kvargs.h>
   8 #include <rte_ethdev_vdev.h>
   9 #include <rte_bus_vdev.h>
  10 #include <rte_ether.h>
  11 #include <dpaa_of.h>
  12
  13 #include "pfe_logs.h"
  14 #include "pfe_mod.h"
  15
  16 #define PFE_MAX_MACS 1 /* we can support up to 4 MACs per IF */
  17 #define PFE_VDEV_GEM_ID_ARG     "intf"
  18
  19 struct pfe_vdev_init_params {
  20         int8_t  gem_id;
  21 };
  22 static struct pfe *g_pfe;
  23 /* Supported Rx offloads */
  24 static uint64_t dev_rx_offloads_sup =
  25                 DEV_RX_OFFLOAD_IPV4_CKSUM |
  26                 DEV_RX_OFFLOAD_UDP_CKSUM |
  27                 DEV_RX_OFFLOAD_TCP_CKSUM;
  28
  29 /* Supported Tx offloads */
  30 static uint64_t dev_tx_offloads_sup =
  31                 DEV_TX_OFFLOAD_IPV4_CKSUM |
  32                 DEV_TX_OFFLOAD_UDP_CKSUM |
  33                 DEV_TX_OFFLOAD_TCP_CKSUM;
  34
  35 /* TODO: make pfe_svr a runtime option.
  36  * Driver should be able to get the SVR
  37  * information from HW.
  38  */
  39 unsigned int pfe_svr = SVR_LS1012A_REV1;
  40 static void *cbus_emac_base[3];
  41 static void *cbus_gpi_base[3];
  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_eth_dev_release_port(dev);
 398         pfe->nb_devs--;
 399 }
 400
 401 static void
 402 pfe_eth_close(struct rte_eth_dev *dev)
 403 {
 404         if (!dev)
 405                 return;
 406
 407         if (!g_pfe)
 408                 return;
 409
 410         pfe_eth_exit(dev, g_pfe);
 411
 412         if (g_pfe->nb_devs == 0) {
 413                 pfe_hif_exit(g_pfe);
 414                 pfe_hif_lib_exit(g_pfe);
 415                 rte_free(g_pfe);
 416                 g_pfe = NULL;
 417         }
 418 }
 419
 420 static int
 421 pfe_eth_configure(struct rte_eth_dev *dev __rte_unused)
 422 {
 423         return 0;
 424 }
 425
 426 static int
 427 pfe_eth_info(struct rte_eth_dev *dev,
 428                 struct rte_eth_dev_info *dev_info)
 429 {
 430         dev_info->max_mac_addrs = PFE_MAX_MACS;
 431         dev_info->max_rx_queues = dev->data->nb_rx_queues;
 432         dev_info->max_tx_queues = dev->data->nb_tx_queues;
 433         dev_info->min_rx_bufsize = HIF_RX_PKT_MIN_SIZE;
 434         dev_info->min_mtu = RTE_ETHER_MIN_MTU;
 435         dev_info->rx_offload_capa = dev_rx_offloads_sup;
 436         dev_info->tx_offload_capa = dev_tx_offloads_sup;
 437         if (pfe_svr == SVR_LS1012A_REV1) {
 438                 dev_info->max_rx_pktlen = MAX_MTU_ON_REV1 + PFE_ETH_OVERHEAD;
 439                 dev_info->max_mtu = MAX_MTU_ON_REV1;
 440         } else {
 441                 dev_info->max_rx_pktlen = JUMBO_FRAME_SIZE;
 442                 dev_info->max_mtu = JUMBO_FRAME_SIZE - PFE_ETH_OVERHEAD;
 443         }
 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 uint32_t *
 525 pfe_supported_ptypes_get(struct rte_eth_dev *dev)
 526 {
 527         static const uint32_t ptypes[] = {
 528                 /*todo -= add more types */
 529                 RTE_PTYPE_L2_ETHER,
 530                 RTE_PTYPE_L3_IPV4,
 531                 RTE_PTYPE_L3_IPV4_EXT,
 532                 RTE_PTYPE_L3_IPV6,
 533                 RTE_PTYPE_L3_IPV6_EXT,
 534                 RTE_PTYPE_L4_TCP,
 535                 RTE_PTYPE_L4_UDP,
 536                 RTE_PTYPE_L4_SCTP
 537         };
 538
 539         if (dev->rx_pkt_burst == pfe_recv_pkts ||
 540                         dev->rx_pkt_burst == pfe_recv_pkts_on_intr)
 541                 return ptypes;
 542         return NULL;
 543 }
 544
 545 static inline int
 546 pfe_eth_atomic_read_link_status(struct rte_eth_dev *dev,
 547                                 struct rte_eth_link *link)
 548 {
 549         struct rte_eth_link *dst = link;
 550         struct rte_eth_link *src = &dev->data->dev_link;
 551
 552         if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
 553                                 *(uint64_t *)src) == 0)
 554                 return -1;
 555
 556         return 0;
 557 }
 558
 559 static inline int
 560 pfe_eth_atomic_write_link_status(struct rte_eth_dev *dev,
 561                                  struct rte_eth_link *link)
 562 {
 563         struct rte_eth_link *dst = &dev->data->dev_link;
 564         struct rte_eth_link *src = link;
 565
 566         if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
 567                                 *(uint64_t *)src) == 0)
 568                 return -1;
 569
 570         return 0;
 571 }
 572
 573 static int
 574 pfe_eth_link_update(struct rte_eth_dev *dev, int wait_to_complete __rte_unused)
 575 {
 576         int ret, ioctl_cmd = 0;
 577         struct pfe_eth_priv_s *priv = dev->data->dev_private;
 578         struct rte_eth_link link, old;
 579         unsigned int lstatus = 1;
 580
 581         if (dev == NULL) {
 582                 PFE_PMD_ERR("Invalid device in link_update.\n");
 583                 return 0;
 584         }
 585
 586         memset(&old, 0, sizeof(old));
 587         memset(&link, 0, sizeof(struct rte_eth_link));
 588
 589         pfe_eth_atomic_read_link_status(dev, &old);
 590
 591         /* Read from PFE CDEV, status of link, if file was successfully
 592          * opened.
 593          */
 594         if (priv->link_fd != PFE_CDEV_INVALID_FD) {
 595                 if (priv->id == 0)
 596                         ioctl_cmd = PFE_CDEV_ETH0_STATE_GET;
 597                 if (priv->id == 1)
 598                         ioctl_cmd = PFE_CDEV_ETH1_STATE_GET;
 599
 600                 ret = ioctl(priv->link_fd, ioctl_cmd, &lstatus);
 601                 if (ret != 0) {
 602                         PFE_PMD_ERR("Unable to fetch link status (ioctl)\n");
 603                         /* use dummy link value */
 604                         link.link_status = 1;
 605                 }
 606                 PFE_PMD_DEBUG("Fetched link state (%d) for dev %d.\n",
 607                               lstatus, priv->id);
 608         }
 609
 610         if (old.link_status == lstatus) {
 611                 /* no change in status */
 612                 PFE_PMD_DEBUG("No change in link status; Not updating.\n");
 613                 return -1;
 614         }
 615
 616         link.link_status = lstatus;
 617         link.link_speed = ETH_LINK_SPEED_1G;
 618         link.link_duplex = ETH_LINK_FULL_DUPLEX;
 619         link.link_autoneg = ETH_LINK_AUTONEG;
 620
 621         pfe_eth_atomic_write_link_status(dev, &link);
 622
 623         PFE_PMD_INFO("Port (%d) link is %s\n", dev->data->port_id,
 624                      link.link_status ? "up" : "down");
 625
 626         return 0;
 627 }
 628
 629 static int
 630 pfe_promiscuous_enable(struct rte_eth_dev *dev)
 631 {
 632         struct pfe_eth_priv_s *priv = dev->data->dev_private;
 633
 634         priv->promisc = 1;
 635         dev->data->promiscuous = 1;
 636         gemac_enable_copy_all(priv->EMAC_baseaddr);
 637
 638         return 0;
 639 }
 640
 641 static int
 642 pfe_promiscuous_disable(struct rte_eth_dev *dev)
 643 {
 644         struct pfe_eth_priv_s *priv = dev->data->dev_private;
 645
 646         priv->promisc = 0;
 647         dev->data->promiscuous = 0;
 648         gemac_disable_copy_all(priv->EMAC_baseaddr);
 649
 650         return 0;
 651 }
 652
 653 static int
 654 pfe_allmulticast_enable(struct rte_eth_dev *dev)
 655 {
 656         struct pfe_eth_priv_s *priv = dev->data->dev_private;
 657         struct pfe_mac_addr    hash_addr; /* hash register structure */
 658
 659         /* Set the hash to rx all multicast frames */
 660         hash_addr.bottom = 0xFFFFFFFF;
 661         hash_addr.top = 0xFFFFFFFF;
 662         gemac_set_hash(priv->EMAC_baseaddr, &hash_addr);
 663         dev->data->all_multicast = 1;
 664
 665         return 0;
 666 }
 667
 668 static int
 669 pfe_link_down(struct rte_eth_dev *dev)
 670 {
 671         pfe_eth_stop(dev);
 672         return 0;
 673 }
 674
 675 static int
 676 pfe_link_up(struct rte_eth_dev *dev)
 677 {
 678         struct pfe_eth_priv_s *priv = dev->data->dev_private;
 679
 680         pfe_eth_start(priv);
 681         return 0;
 682 }
 683
 684 static int
 685 pfe_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
 686 {
 687         int ret;
 688         struct pfe_eth_priv_s *priv = dev->data->dev_private;
 689         uint16_t frame_size = mtu + RTE_ETHER_HDR_LEN + RTE_ETHER_CRC_LEN;
 690
 691         /*TODO Support VLAN*/
 692         ret = gemac_set_rx(priv->EMAC_baseaddr, frame_size);
 693         if (!ret)
 694                 dev->data->mtu = mtu;
 695
 696         return ret;
 697 }
 698
 699 /* pfe_eth_enet_addr_byte_mac
 700  */
 701 static int
 702 pfe_eth_enet_addr_byte_mac(u8 *enet_byte_addr,
 703                            struct pfe_mac_addr *enet_addr)
 704 {
 705         if (!enet_byte_addr || !enet_addr) {
 706                 return -1;
 707
 708         } else {
 709                 enet_addr->bottom = enet_byte_addr[0] |
 710                         (enet_byte_addr[1] << 8) |
 711                         (enet_byte_addr[2] << 16) |
 712                         (enet_byte_addr[3] << 24);
 713                 enet_addr->top = enet_byte_addr[4] |
 714                         (enet_byte_addr[5] << 8);
 715                 return 0;
 716         }
 717 }
 718
 719 static int
 720 pfe_dev_set_mac_addr(struct rte_eth_dev *dev,
 721                        struct rte_ether_addr *addr)
 722 {
 723         struct pfe_eth_priv_s *priv = dev->data->dev_private;
 724         struct pfe_mac_addr spec_addr;
 725         int ret;
 726
 727         ret = pfe_eth_enet_addr_byte_mac(addr->addr_bytes, &spec_addr);
 728         if (ret)
 729                 return ret;
 730
 731         gemac_set_laddrN(priv->EMAC_baseaddr,
 732                          (struct pfe_mac_addr *)&spec_addr, 1);
 733         rte_ether_addr_copy(addr, &dev->data->mac_addrs[0]);
 734         return 0;
 735 }
 736
 737 static int
 738 pfe_stats_get(struct rte_eth_dev *dev,
 739               struct rte_eth_stats *stats)
 740 {
 741         struct pfe_eth_priv_s *priv = dev->data->dev_private;
 742         struct rte_eth_stats *eth_stats = &priv->stats;
 743
 744         if (stats == NULL)
 745                 return -1;
 746
 747         memset(stats, 0, sizeof(struct rte_eth_stats));
 748
 749         stats->ipackets = eth_stats->ipackets;
 750         stats->ibytes = eth_stats->ibytes;
 751         stats->opackets = eth_stats->opackets;
 752         stats->obytes = eth_stats->obytes;
 753
 754         return 0;
 755 }
 756
 757 static const struct eth_dev_ops ops = {
 758         .dev_start = pfe_eth_open,
 759         .dev_stop = pfe_eth_stop,
 760         .dev_close = pfe_eth_close,
 761         .dev_configure = pfe_eth_configure,
 762         .dev_infos_get = pfe_eth_info,
 763         .rx_queue_setup = pfe_rx_queue_setup,
 764         .rx_queue_release  = pfe_rx_queue_release,
 765         .tx_queue_setup = pfe_tx_queue_setup,
 766         .tx_queue_release  = pfe_tx_queue_release,
 767         .dev_supported_ptypes_get = pfe_supported_ptypes_get,
 768         .link_update  = pfe_eth_link_update,
 769         .promiscuous_enable   = pfe_promiscuous_enable,
 770         .promiscuous_disable  = pfe_promiscuous_disable,
 771         .allmulticast_enable  = pfe_allmulticast_enable,
 772         .dev_set_link_down    = pfe_link_down,
 773         .dev_set_link_up      = pfe_link_up,
 774         .mtu_set              = pfe_mtu_set,
 775         .mac_addr_set         = pfe_dev_set_mac_addr,
 776         .stats_get            = pfe_stats_get,
 777 };
 778
 779 static int
 780 pfe_eth_init(struct rte_vdev_device *vdev, struct pfe *pfe, int id)
 781 {
 782         struct rte_eth_dev *eth_dev = NULL;
 783         struct pfe_eth_priv_s *priv = NULL;
 784         struct ls1012a_eth_platform_data *einfo;
 785         struct ls1012a_pfe_platform_data *pfe_info;
 786         struct rte_ether_addr addr;
 787         int err;
 788
 789         eth_dev = rte_eth_vdev_allocate(vdev, sizeof(*priv));
 790         if (eth_dev == NULL)
 791                 return -ENOMEM;
 792
 793         /* Extract pltform data */
 794         pfe_info = (struct ls1012a_pfe_platform_data *)&pfe->platform_data;
 795         if (!pfe_info) {
 796                 PFE_PMD_ERR("pfe missing additional platform data");
 797                 err = -ENODEV;
 798                 goto err0;
 799         }
 800
 801         einfo = (struct ls1012a_eth_platform_data *)pfe_info->ls1012a_eth_pdata;
 802
 803         /* einfo never be NULL, but no harm in having this check */
 804         if (!einfo) {
 805                 PFE_PMD_ERR("pfe missing additional gemacs platform data");
 806                 err = -ENODEV;
 807                 goto err0;
 808         }
 809
 810         priv = eth_dev->data->dev_private;
 811         priv->ndev = eth_dev;
 812         priv->id = einfo[id].gem_id;
 813         priv->pfe = pfe;
 814
 815         pfe->eth.eth_priv[id] = priv;
 816
 817         /* Set the info in the priv to the current info */
 818         priv->einfo = &einfo[id];
 819         priv->EMAC_baseaddr = cbus_emac_base[id];
 820         priv->PHY_baseaddr = cbus_emac_base[id];
 821         priv->GPI_baseaddr = cbus_gpi_base[id];
 822
 823 #define HIF_GEMAC_TMUQ_BASE     6
 824         priv->low_tmu_q = HIF_GEMAC_TMUQ_BASE + (id * 2);
 825         priv->high_tmu_q = priv->low_tmu_q + 1;
 826
 827         rte_spinlock_init(&priv->lock);
 828
 829         /* Copy the station address into the dev structure, */
 830         eth_dev->data->mac_addrs = rte_zmalloc("mac_addr",
 831                         ETHER_ADDR_LEN * PFE_MAX_MACS, 0);
 832         if (eth_dev->data->mac_addrs == NULL) {
 833                 PFE_PMD_ERR("Failed to allocate mem %d to store MAC addresses",
 834                         ETHER_ADDR_LEN * PFE_MAX_MACS);
 835                 err = -ENOMEM;
 836                 goto err0;
 837         }
 838
 839         memcpy(addr.addr_bytes, priv->einfo->mac_addr,
 840                        ETH_ALEN);
 841
 842         pfe_dev_set_mac_addr(eth_dev, &addr);
 843         rte_ether_addr_copy(&addr, &eth_dev->data->mac_addrs[0]);
 844
 845         eth_dev->data->mtu = 1500;
 846         eth_dev->dev_ops = &ops;
 847         pfe_eth_stop(eth_dev);
 848         pfe_gemac_init(priv);
 849
 850         eth_dev->data->nb_rx_queues = 1;
 851         eth_dev->data->nb_tx_queues = 1;
 852
 853         /* For link status, open the PFE CDEV; Error from this function
 854          * is silently ignored; In case of error, the link status will not
 855          * be available.
 856          */
 857         pfe_eth_open_cdev(priv);
 858         rte_eth_dev_probing_finish(eth_dev);
 859
 860         return 0;
 861 err0:
 862         rte_eth_dev_release_port(eth_dev);
 863         return err;
 864 }
 865
 866 static int
 867 pfe_get_gemac_if_proprties(struct pfe *pfe,
 868                 __rte_unused const struct device_node *parent,
 869                 unsigned int port, unsigned int if_cnt,
 870                 struct ls1012a_pfe_platform_data *pdata)
 871 {
 872         const struct device_node *gem = NULL;
 873         size_t size;
 874         unsigned int ii = 0, phy_id = 0;
 875         const u32 *addr;
 876         const void *mac_addr;
 877
 878         for (ii = 0; ii < if_cnt; ii++) {
 879                 gem = of_get_next_child(parent, gem);
 880                 if (!gem)
 881                         goto err;
 882                 addr = of_get_property(gem, "reg", &size);
 883                 if (addr && (rte_be_to_cpu_32((unsigned int)*addr) == port))
 884                         break;
 885         }
 886
 887         if (ii >= if_cnt) {
 888                 PFE_PMD_ERR("Failed to find interface = %d", if_cnt);
 889                 goto err;
 890         }
 891
 892         pdata->ls1012a_eth_pdata[port].gem_id = port;
 893
 894         mac_addr = of_get_mac_address(gem);
 895
 896         if (mac_addr) {
 897                 memcpy(pdata->ls1012a_eth_pdata[port].mac_addr, mac_addr,
 898                        ETH_ALEN);
 899         }
 900
 901         addr = of_get_property(gem, "fsl,mdio-mux-val", &size);
 902         if (!addr) {
 903                 PFE_PMD_ERR("Invalid mdio-mux-val....");
 904         } else {
 905                 phy_id = rte_be_to_cpu_32((unsigned int)*addr);
 906                 pdata->ls1012a_eth_pdata[port].mdio_muxval = phy_id;
 907         }
 908         if (pdata->ls1012a_eth_pdata[port].phy_id < 32)
 909                 pfe->mdio_muxval[pdata->ls1012a_eth_pdata[port].phy_id] =
 910                          pdata->ls1012a_eth_pdata[port].mdio_muxval;
 911
 912         return 0;
 913
 914 err:
 915         return -1;
 916 }
 917
 918 /* Parse integer from integer argument */
 919 static int
 920 parse_integer_arg(const char *key __rte_unused,
 921                 const char *value, void *extra_args)
 922 {
 923         int i;
 924         char *end;
 925         errno = 0;
 926
 927         i = strtol(value, &end, 10);
 928         if (*end != 0 || errno != 0 || i < 0 || i > 1) {
 929                 PFE_PMD_ERR("Supported Port IDS are 0 and 1");
 930                 return -EINVAL;
 931         }
 932
 933         *((uint32_t *)extra_args) = i;
 934
 935         return 0;
 936 }
 937
 938 static int
 939 pfe_parse_vdev_init_params(struct pfe_vdev_init_params *params,
 940                            struct rte_vdev_device *dev)
 941 {
 942         struct rte_kvargs *kvlist = NULL;
 943         int ret = 0;
 944
 945         static const char * const pfe_vdev_valid_params[] = {
 946                 PFE_VDEV_GEM_ID_ARG,
 947                 NULL
 948         };
 949
 950         const char *input_args = rte_vdev_device_args(dev);
 951
 952         if (!input_args)
 953                 return -1;
 954
 955         kvlist = rte_kvargs_parse(input_args, pfe_vdev_valid_params);
 956         if (kvlist == NULL)
 957                 return -1;
 958
 959         ret = rte_kvargs_process(kvlist,
 960                                 PFE_VDEV_GEM_ID_ARG,
 961                                 &parse_integer_arg,
 962                                 &params->gem_id);
 963         rte_kvargs_free(kvlist);
 964         return ret;
 965 }
 966
 967 static int
 968 pmd_pfe_probe(struct rte_vdev_device *vdev)
 969 {
 970         const u32 *prop;
 971         const struct device_node *np;
 972         const char *name;
 973         const uint32_t *addr;
 974         uint64_t cbus_addr, ddr_size, cbus_size;
 975         int rc = -1, fd = -1, gem_id;
 976         unsigned int ii, interface_count = 0;
 977         size_t size = 0;
 978         struct pfe_vdev_init_params init_params = {
 979                 .gem_id = -1
 980         };
 981
 982         name = rte_vdev_device_name(vdev);
 983         rc = pfe_parse_vdev_init_params(&init_params, vdev);
 984         if (rc < 0)
 985                 return -EINVAL;
 986
 987         PFE_PMD_LOG(INFO, "Initializing pmd_pfe for %s Given gem-id %d",
 988                 name, init_params.gem_id);
 989
 990         if (g_pfe) {
 991                 if (g_pfe->nb_devs >= g_pfe->max_intf) {
 992                         PFE_PMD_ERR("PFE %d dev already created Max is %d",
 993                                 g_pfe->nb_devs, g_pfe->max_intf);
 994                         return -EINVAL;
 995                 }
 996                 goto eth_init;
 997         }
 998
 999         g_pfe = rte_zmalloc(NULL, sizeof(*g_pfe), RTE_CACHE_LINE_SIZE);
1000         if (g_pfe == NULL)
1001                 return  -EINVAL;
1002
1003         /* Load the device-tree driver */
1004         rc = of_init();
1005         if (rc) {
1006                 PFE_PMD_ERR("of_init failed with ret: %d", rc);
1007                 goto err;
1008         }
1009
1010         np = of_find_compatible_node(NULL, NULL, "fsl,pfe");
1011         if (!np) {
1012                 PFE_PMD_ERR("Invalid device node");
1013                 rc = -EINVAL;
1014                 goto err;
1015         }
1016
1017         addr = of_get_address(np, 0, &cbus_size, NULL);
1018         if (!addr) {
1019                 PFE_PMD_ERR("of_get_address cannot return qman address\n");
1020                 goto err;
1021         }
1022         cbus_addr = of_translate_address(np, addr);
1023         if (!cbus_addr) {
1024                 PFE_PMD_ERR("of_translate_address failed\n");
1025                 goto err;
1026         }
1027
1028         addr = of_get_address(np, 1, &ddr_size, NULL);
1029         if (!addr) {
1030                 PFE_PMD_ERR("of_get_address cannot return qman address\n");
1031                 goto err;
1032         }
1033
1034         g_pfe->ddr_phys_baseaddr = of_translate_address(np, addr);
1035         if (!g_pfe->ddr_phys_baseaddr) {
1036                 PFE_PMD_ERR("of_translate_address failed\n");
1037                 goto err;
1038         }
1039
1040         g_pfe->ddr_baseaddr = pfe_mem_ptov(g_pfe->ddr_phys_baseaddr);
1041         g_pfe->ddr_size = ddr_size;
1042         g_pfe->cbus_size = cbus_size;
1043
1044         fd = open("/dev/mem", O_RDWR);
1045         g_pfe->cbus_baseaddr = mmap(NULL, cbus_size, PROT_READ | PROT_WRITE,
1046                                         MAP_SHARED, fd, cbus_addr);
1047         close(fd);
1048         if (g_pfe->cbus_baseaddr == MAP_FAILED) {
1049                 PFE_PMD_ERR("Can not map cbus base");
1050                 rc = -EINVAL;
1051                 goto err;
1052         }
1053
1054         /* Read interface count */
1055         prop = of_get_property(np, "fsl,pfe-num-interfaces", &size);
1056         if (!prop) {
1057                 PFE_PMD_ERR("Failed to read number of interfaces");
1058                 rc = -ENXIO;
1059                 goto err_prop;
1060         }
1061
1062         interface_count = rte_be_to_cpu_32((unsigned int)*prop);
1063         if (interface_count <= 0) {
1064                 PFE_PMD_ERR("No ethernet interface count : %d",
1065                                 interface_count);
1066                 rc = -ENXIO;
1067                 goto err_prop;
1068         }
1069         PFE_PMD_INFO("num interfaces = %d ", interface_count);
1070
1071         g_pfe->max_intf  = interface_count;
1072         g_pfe->platform_data.ls1012a_mdio_pdata[0].phy_mask = 0xffffffff;
1073
1074         for (ii = 0; ii < interface_count; ii++) {
1075                 pfe_get_gemac_if_proprties(g_pfe, np, ii, interface_count,
1076                                            &g_pfe->platform_data);
1077         }
1078
1079         pfe_lib_init(g_pfe->cbus_baseaddr, g_pfe->ddr_baseaddr,
1080                      g_pfe->ddr_phys_baseaddr, g_pfe->ddr_size);
1081
1082         PFE_PMD_INFO("CLASS version: %x", readl(CLASS_VERSION));
1083         PFE_PMD_INFO("TMU version: %x", readl(TMU_VERSION));
1084
1085         PFE_PMD_INFO("BMU1 version: %x", readl(BMU1_BASE_ADDR + BMU_VERSION));
1086         PFE_PMD_INFO("BMU2 version: %x", readl(BMU2_BASE_ADDR + BMU_VERSION));
1087
1088         PFE_PMD_INFO("EGPI1 version: %x", readl(EGPI1_BASE_ADDR + GPI_VERSION));
1089         PFE_PMD_INFO("EGPI2 version: %x", readl(EGPI2_BASE_ADDR + GPI_VERSION));
1090         PFE_PMD_INFO("HGPI version: %x", readl(HGPI_BASE_ADDR + GPI_VERSION));
1091
1092         PFE_PMD_INFO("HIF version: %x", readl(HIF_VERSION));
1093         PFE_PMD_INFO("HIF NOPCY version: %x", readl(HIF_NOCPY_VERSION));
1094
1095         cbus_emac_base[0] = EMAC1_BASE_ADDR;
1096         cbus_emac_base[1] = EMAC2_BASE_ADDR;
1097
1098         cbus_gpi_base[0] = EGPI1_BASE_ADDR;
1099         cbus_gpi_base[1] = EGPI2_BASE_ADDR;
1100
1101         rc = pfe_hif_lib_init(g_pfe);
1102         if (rc < 0)
1103                 goto err_hif_lib;
1104
1105         rc = pfe_hif_init(g_pfe);
1106         if (rc < 0)
1107                 goto err_hif;
1108         pfe_soc_version_get();
1109 eth_init:
1110         if (init_params.gem_id < 0)
1111                 gem_id = g_pfe->nb_devs;
1112         else
1113                 gem_id = init_params.gem_id;
1114
1115         PFE_PMD_LOG(INFO, "Init pmd_pfe for %s gem-id %d(given =%d)",
1116                 name, gem_id, init_params.gem_id);
1117
1118         rc = pfe_eth_init(vdev, g_pfe, gem_id);
1119         if (rc < 0)
1120                 goto err_eth;
1121         else
1122                 g_pfe->nb_devs++;
1123
1124         return 0;
1125
1126 err_eth:
1127         pfe_hif_exit(g_pfe);
1128
1129 err_hif:
1130         pfe_hif_lib_exit(g_pfe);
1131
1132 err_hif_lib:
1133 err_prop:
1134         munmap(g_pfe->cbus_baseaddr, cbus_size);
1135 err:
1136         rte_free(g_pfe);
1137         return rc;
1138 }
1139
1140 static int
1141 pmd_pfe_remove(struct rte_vdev_device *vdev)
1142 {
1143         const char *name;
1144         struct rte_eth_dev *eth_dev = NULL;
1145
1146         name = rte_vdev_device_name(vdev);
1147         if (name == NULL)
1148                 return -EINVAL;
1149
1150         PFE_PMD_INFO("Closing eventdev sw device %s", name);
1151
1152         if (!g_pfe)
1153                 return 0;
1154
1155         eth_dev = rte_eth_dev_allocated(name);
1156         if (eth_dev == NULL)
1157                 return -ENODEV;
1158
1159         pfe_eth_exit(eth_dev, g_pfe);
1160         munmap(g_pfe->cbus_baseaddr, g_pfe->cbus_size);
1161
1162         if (g_pfe->nb_devs == 0) {
1163                 pfe_hif_exit(g_pfe);
1164                 pfe_hif_lib_exit(g_pfe);
1165                 rte_free(g_pfe);
1166                 g_pfe = NULL;
1167         }
1168         return 0;
1169 }
1170
1171 static
1172 struct rte_vdev_driver pmd_pfe_drv = {
1173         .probe = pmd_pfe_probe,
1174         .remove = pmd_pfe_remove,
1175 };
1176
1177 RTE_PMD_REGISTER_VDEV(PFE_NAME_PMD, pmd_pfe_drv);
1178 RTE_PMD_REGISTER_PARAM_STRING(PFE_NAME_PMD, PFE_VDEV_GEM_ID_ARG "=<int> ");
1179 RTE_LOG_REGISTER(pfe_logtype_pmd, pmd.net.pfe, NOTICE);