drivers/net/ark/ark_ethdev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright (c) 2015-2018 Atomic Rules LLC
   3  */
   4
   5 #include <unistd.h>
   6 #include <sys/stat.h>
   7 #include <dlfcn.h>
   8
   9 #include <rte_bus_pci.h>
  10 #include <rte_ethdev_pci.h>
  11 #include <rte_kvargs.h>
  12
  13 #include "ark_global.h"
  14 #include "ark_logs.h"
  15 #include "ark_ethdev_tx.h"
  16 #include "ark_ethdev_rx.h"
  17 #include "ark_mpu.h"
  18 #include "ark_ddm.h"
  19 #include "ark_udm.h"
  20 #include "ark_rqp.h"
  21 #include "ark_pktdir.h"
  22 #include "ark_pktgen.h"
  23 #include "ark_pktchkr.h"
  24
  25 /*  Internal prototypes */
  26 static int eth_ark_check_args(struct ark_adapter *ark, const char *params);
  27 static int eth_ark_dev_init(struct rte_eth_dev *dev);
  28 static int ark_config_device(struct rte_eth_dev *dev);
  29 static int eth_ark_dev_uninit(struct rte_eth_dev *eth_dev);
  30 static int eth_ark_dev_configure(struct rte_eth_dev *dev);
  31 static int eth_ark_dev_start(struct rte_eth_dev *dev);
  32 static void eth_ark_dev_stop(struct rte_eth_dev *dev);
  33 static void eth_ark_dev_close(struct rte_eth_dev *dev);
  34 static void eth_ark_dev_info_get(struct rte_eth_dev *dev,
  35                                  struct rte_eth_dev_info *dev_info);
  36 static int eth_ark_dev_link_update(struct rte_eth_dev *dev,
  37                                    int wait_to_complete);
  38 static int eth_ark_dev_set_link_up(struct rte_eth_dev *dev);
  39 static int eth_ark_dev_set_link_down(struct rte_eth_dev *dev);
  40 static int eth_ark_dev_stats_get(struct rte_eth_dev *dev,
  41                                   struct rte_eth_stats *stats);
  42 static void eth_ark_dev_stats_reset(struct rte_eth_dev *dev);
  43 static int eth_ark_set_default_mac_addr(struct rte_eth_dev *dev,
  44                                          struct rte_ether_addr *mac_addr);
  45 static int eth_ark_macaddr_add(struct rte_eth_dev *dev,
  46                                struct rte_ether_addr *mac_addr,
  47                                uint32_t index,
  48                                uint32_t pool);
  49 static void eth_ark_macaddr_remove(struct rte_eth_dev *dev,
  50                                    uint32_t index);
  51 static int  eth_ark_set_mtu(struct rte_eth_dev *dev, uint16_t size);
  52
  53 /*
  54  * The packet generator is a functional block used to generate packet
  55  * patterns for testing.  It is not intended for nominal use.
  56  */
  57 #define ARK_PKTGEN_ARG "Pkt_gen"
  58
  59 /*
  60  * The packet checker is a functional block used to verify packet
  61  * patterns for testing.  It is not intended for nominal use.
  62  */
  63 #define ARK_PKTCHKR_ARG "Pkt_chkr"
  64
  65 /*
  66  * The packet director is used to select the internal ingress and
  67  * egress packets paths during testing.  It is not intended for
  68  * nominal use.
  69  */
  70 #define ARK_PKTDIR_ARG "Pkt_dir"
  71
  72 /* Devinfo configurations */
  73 #define ARK_RX_MAX_QUEUE (4096 * 4)
  74 #define ARK_RX_MIN_QUEUE (512)
  75 #define ARK_RX_MAX_PKT_LEN ((16 * 1024) - 128)
  76 #define ARK_RX_MIN_BUFSIZE (1024)
  77
  78 #define ARK_TX_MAX_QUEUE (4096 * 4)
  79 #define ARK_TX_MIN_QUEUE (256)
  80
  81 static const char * const valid_arguments[] = {
  82         ARK_PKTGEN_ARG,
  83         ARK_PKTCHKR_ARG,
  84         ARK_PKTDIR_ARG,
  85         NULL
  86 };
  87
  88 static const struct rte_pci_id pci_id_ark_map[] = {
  89         {RTE_PCI_DEVICE(0x1d6c, 0x100d)},
  90         {RTE_PCI_DEVICE(0x1d6c, 0x100e)},
  91         {.vendor_id = 0, /* sentinel */ },
  92 };
  93
  94 static int
  95 eth_ark_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
  96                 struct rte_pci_device *pci_dev)
  97 {
  98         struct rte_eth_dev *eth_dev;
  99         int ret;
 100
 101         eth_dev = rte_eth_dev_pci_allocate(pci_dev, sizeof(struct ark_adapter));
 102
 103         if (eth_dev == NULL)
 104                 return -ENOMEM;
 105
 106         ret = eth_ark_dev_init(eth_dev);
 107         if (ret)
 108                 rte_eth_dev_pci_release(eth_dev);
 109
 110         return ret;
 111 }
 112
 113 static int
 114 eth_ark_pci_remove(struct rte_pci_device *pci_dev)
 115 {
 116         return rte_eth_dev_pci_generic_remove(pci_dev, eth_ark_dev_uninit);
 117 }
 118
 119 static struct rte_pci_driver rte_ark_pmd = {
 120         .id_table = pci_id_ark_map,
 121         .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC,
 122         .probe = eth_ark_pci_probe,
 123         .remove = eth_ark_pci_remove,
 124 };
 125
 126 static const struct eth_dev_ops ark_eth_dev_ops = {
 127         .dev_configure = eth_ark_dev_configure,
 128         .dev_start = eth_ark_dev_start,
 129         .dev_stop = eth_ark_dev_stop,
 130         .dev_close = eth_ark_dev_close,
 131
 132         .dev_infos_get = eth_ark_dev_info_get,
 133
 134         .rx_queue_setup = eth_ark_dev_rx_queue_setup,
 135         .rx_queue_count = eth_ark_dev_rx_queue_count,
 136         .tx_queue_setup = eth_ark_tx_queue_setup,
 137
 138         .link_update = eth_ark_dev_link_update,
 139         .dev_set_link_up = eth_ark_dev_set_link_up,
 140         .dev_set_link_down = eth_ark_dev_set_link_down,
 141
 142         .rx_queue_start = eth_ark_rx_start_queue,
 143         .rx_queue_stop = eth_ark_rx_stop_queue,
 144
 145         .tx_queue_start = eth_ark_tx_queue_start,
 146         .tx_queue_stop = eth_ark_tx_queue_stop,
 147
 148         .stats_get = eth_ark_dev_stats_get,
 149         .stats_reset = eth_ark_dev_stats_reset,
 150
 151         .mac_addr_add = eth_ark_macaddr_add,
 152         .mac_addr_remove = eth_ark_macaddr_remove,
 153         .mac_addr_set = eth_ark_set_default_mac_addr,
 154
 155         .mtu_set = eth_ark_set_mtu,
 156 };
 157
 158 static int
 159 check_for_ext(struct ark_adapter *ark)
 160 {
 161         int found = 0;
 162
 163         /* Get the env */
 164         const char *dllpath = getenv("ARK_EXT_PATH");
 165
 166         if (dllpath == NULL) {
 167                 PMD_DEBUG_LOG(DEBUG, "ARK EXT NO dll path specified\n");
 168                 return 0;
 169         }
 170         PMD_DRV_LOG(INFO, "ARK EXT found dll path at %s\n", dllpath);
 171
 172         /* Open and load the .so */
 173         ark->d_handle = dlopen(dllpath, RTLD_LOCAL | RTLD_LAZY);
 174         if (ark->d_handle == NULL) {
 175                 PMD_DRV_LOG(ERR, "Could not load user extension %s\n",
 176                             dllpath);
 177                 return -1;
 178         }
 179         PMD_DRV_LOG(INFO, "SUCCESS: loaded user extension %s\n",
 180                             dllpath);
 181
 182         /* Get the entry points */
 183         ark->user_ext.dev_init =
 184                 (void *(*)(struct rte_eth_dev *, void *, int))
 185                 dlsym(ark->d_handle, "dev_init");
 186         PMD_DEBUG_LOG(DEBUG, "device ext init pointer = %p\n",
 187                       ark->user_ext.dev_init);
 188         ark->user_ext.dev_get_port_count =
 189                 (int (*)(struct rte_eth_dev *, void *))
 190                 dlsym(ark->d_handle, "dev_get_port_count");
 191         ark->user_ext.dev_uninit =
 192                 (void (*)(struct rte_eth_dev *, void *))
 193                 dlsym(ark->d_handle, "dev_uninit");
 194         ark->user_ext.dev_configure =
 195                 (int (*)(struct rte_eth_dev *, void *))
 196                 dlsym(ark->d_handle, "dev_configure");
 197         ark->user_ext.dev_start =
 198                 (int (*)(struct rte_eth_dev *, void *))
 199                 dlsym(ark->d_handle, "dev_start");
 200         ark->user_ext.dev_stop =
 201                 (void (*)(struct rte_eth_dev *, void *))
 202                 dlsym(ark->d_handle, "dev_stop");
 203         ark->user_ext.dev_close =
 204                 (void (*)(struct rte_eth_dev *, void *))
 205                 dlsym(ark->d_handle, "dev_close");
 206         ark->user_ext.link_update =
 207                 (int (*)(struct rte_eth_dev *, int, void *))
 208                 dlsym(ark->d_handle, "link_update");
 209         ark->user_ext.dev_set_link_up =
 210                 (int (*)(struct rte_eth_dev *, void *))
 211                 dlsym(ark->d_handle, "dev_set_link_up");
 212         ark->user_ext.dev_set_link_down =
 213                 (int (*)(struct rte_eth_dev *, void *))
 214                 dlsym(ark->d_handle, "dev_set_link_down");
 215         ark->user_ext.stats_get =
 216                 (int (*)(struct rte_eth_dev *, struct rte_eth_stats *,
 217                           void *))
 218                 dlsym(ark->d_handle, "stats_get");
 219         ark->user_ext.stats_reset =
 220                 (void (*)(struct rte_eth_dev *, void *))
 221                 dlsym(ark->d_handle, "stats_reset");
 222         ark->user_ext.mac_addr_add =
 223                 (void (*)(struct rte_eth_dev *, struct rte_ether_addr *,
 224                         uint32_t, uint32_t, void *))
 225                 dlsym(ark->d_handle, "mac_addr_add");
 226         ark->user_ext.mac_addr_remove =
 227                 (void (*)(struct rte_eth_dev *, uint32_t, void *))
 228                 dlsym(ark->d_handle, "mac_addr_remove");
 229         ark->user_ext.mac_addr_set =
 230                 (void (*)(struct rte_eth_dev *, struct rte_ether_addr *,
 231                           void *))
 232                 dlsym(ark->d_handle, "mac_addr_set");
 233         ark->user_ext.set_mtu =
 234                 (int (*)(struct rte_eth_dev *, uint16_t,
 235                           void *))
 236                 dlsym(ark->d_handle, "set_mtu");
 237
 238         return found;
 239 }
 240
 241 static int
 242 eth_ark_dev_init(struct rte_eth_dev *dev)
 243 {
 244         struct ark_adapter *ark =
 245                 (struct ark_adapter *)dev->data->dev_private;
 246         struct rte_pci_device *pci_dev;
 247         int ret;
 248         int port_count = 1;
 249         int p;
 250
 251         ark->eth_dev = dev;
 252
 253         PMD_FUNC_LOG(DEBUG, "\n");
 254
 255         /* Check to see if there is an extension that we need to load */
 256         ret = check_for_ext(ark);
 257         if (ret)
 258                 return ret;
 259         pci_dev = RTE_ETH_DEV_TO_PCI(dev);
 260         rte_eth_copy_pci_info(dev, pci_dev);
 261
 262         /* Use dummy function until setup */
 263         dev->rx_pkt_burst = &eth_ark_recv_pkts_noop;
 264         dev->tx_pkt_burst = &eth_ark_xmit_pkts_noop;
 265
 266         ark->bar0 = (uint8_t *)pci_dev->mem_resource[0].addr;
 267         ark->a_bar = (uint8_t *)pci_dev->mem_resource[2].addr;
 268
 269         ark->sysctrl.v  = (void *)&ark->bar0[ARK_SYSCTRL_BASE];
 270         ark->mpurx.v  = (void *)&ark->bar0[ARK_MPU_RX_BASE];
 271         ark->udm.v  = (void *)&ark->bar0[ARK_UDM_BASE];
 272         ark->mputx.v  = (void *)&ark->bar0[ARK_MPU_TX_BASE];
 273         ark->ddm.v  = (void *)&ark->bar0[ARK_DDM_BASE];
 274         ark->cmac.v  = (void *)&ark->bar0[ARK_CMAC_BASE];
 275         ark->external.v  = (void *)&ark->bar0[ARK_EXTERNAL_BASE];
 276         ark->pktdir.v  = (void *)&ark->bar0[ARK_PKTDIR_BASE];
 277         ark->pktgen.v  = (void *)&ark->bar0[ARK_PKTGEN_BASE];
 278         ark->pktchkr.v  = (void *)&ark->bar0[ARK_PKTCHKR_BASE];
 279
 280         ark->rqpacing =
 281                 (struct ark_rqpace_t *)(ark->bar0 + ARK_RCPACING_BASE);
 282         ark->started = 0;
 283
 284         PMD_DEBUG_LOG(INFO, "Sys Ctrl Const = 0x%x  HW Commit_ID: %08x\n",
 285                       ark->sysctrl.t32[4],
 286                       rte_be_to_cpu_32(ark->sysctrl.t32[0x20 / 4]));
 287         PMD_DRV_LOG(INFO, "Arkville HW Commit_ID: %08x\n",
 288                     rte_be_to_cpu_32(ark->sysctrl.t32[0x20 / 4]));
 289
 290         /* If HW sanity test fails, return an error */
 291         if (ark->sysctrl.t32[4] != 0xcafef00d) {
 292                 PMD_DRV_LOG(ERR,
 293                             "HW Sanity test has failed, expected constant"
 294                             " 0x%x, read 0x%x (%s)\n",
 295                             0xcafef00d,
 296                             ark->sysctrl.t32[4], __func__);
 297                 return -1;
 298         }
 299         if (ark->sysctrl.t32[3] != 0) {
 300                 if (ark_rqp_lasped(ark->rqpacing)) {
 301                         PMD_DRV_LOG(ERR, "Arkville Evaluation System - "
 302                                     "Timer has Expired\n");
 303                         return -1;
 304                 }
 305                 PMD_DRV_LOG(WARNING, "Arkville Evaluation System - "
 306                             "Timer is Running\n");
 307         }
 308
 309         PMD_DRV_LOG(INFO,
 310                     "HW Sanity test has PASSED, expected constant"
 311                     " 0x%x, read 0x%x (%s)\n",
 312                     0xcafef00d, ark->sysctrl.t32[4], __func__);
 313
 314         /* We are a single function multi-port device. */
 315         ret = ark_config_device(dev);
 316         if (ret)
 317                 return -1;
 318
 319         dev->dev_ops = &ark_eth_dev_ops;
 320
 321         dev->data->mac_addrs = rte_zmalloc("ark", RTE_ETHER_ADDR_LEN, 0);
 322         if (!dev->data->mac_addrs) {
 323                 PMD_DRV_LOG(ERR,
 324                             "Failed to allocated memory for storing mac address"
 325                             );
 326         }
 327
 328         if (ark->user_ext.dev_init) {
 329                 ark->user_data[dev->data->port_id] =
 330                         ark->user_ext.dev_init(dev, ark->a_bar, 0);
 331                 if (!ark->user_data[dev->data->port_id]) {
 332                         PMD_DRV_LOG(INFO,
 333                                     "Failed to initialize PMD extension!"
 334                                     " continuing without it\n");
 335                         memset(&ark->user_ext, 0, sizeof(struct ark_user_ext));
 336                         dlclose(ark->d_handle);
 337                 }
 338         }
 339
 340         if (pci_dev->device.devargs)
 341                 ret = eth_ark_check_args(ark, pci_dev->device.devargs->args);
 342         else
 343                 PMD_DRV_LOG(INFO, "No Device args found\n");
 344
 345         if (ret)
 346                 goto error;
 347         /*
 348          * We will create additional devices based on the number of requested
 349          * ports
 350          */
 351         if (ark->user_ext.dev_get_port_count)
 352                 port_count =
 353                         ark->user_ext.dev_get_port_count(dev,
 354                                  ark->user_data[dev->data->port_id]);
 355         ark->num_ports = port_count;
 356
 357         for (p = 0; p < port_count; p++) {
 358                 struct rte_eth_dev *eth_dev;
 359                 char name[RTE_ETH_NAME_MAX_LEN];
 360
 361                 snprintf(name, sizeof(name), "arketh%d",
 362                          dev->data->port_id + p);
 363
 364                 if (p == 0) {
 365                         /* First port is already allocated by DPDK */
 366                         eth_dev = ark->eth_dev;
 367                         rte_eth_dev_probing_finish(eth_dev);
 368                         continue;
 369                 }
 370
 371                 /* reserve an ethdev entry */
 372                 eth_dev = rte_eth_dev_allocate(name);
 373                 if (!eth_dev) {
 374                         PMD_DRV_LOG(ERR,
 375                                     "Could not allocate eth_dev for port %d\n",
 376                                     p);
 377                         goto error;
 378                 }
 379
 380                 eth_dev->device = &pci_dev->device;
 381                 eth_dev->data->dev_private = ark;
 382                 eth_dev->dev_ops = ark->eth_dev->dev_ops;
 383                 eth_dev->tx_pkt_burst = ark->eth_dev->tx_pkt_burst;
 384                 eth_dev->rx_pkt_burst = ark->eth_dev->rx_pkt_burst;
 385
 386                 rte_eth_copy_pci_info(eth_dev, pci_dev);
 387
 388                 eth_dev->data->mac_addrs = rte_zmalloc(name,
 389                                                 RTE_ETHER_ADDR_LEN, 0);
 390                 if (!eth_dev->data->mac_addrs) {
 391                         PMD_DRV_LOG(ERR,
 392                                     "Memory allocation for MAC failed!"
 393                                     " Exiting.\n");
 394                         goto error;
 395                 }
 396
 397                 if (ark->user_ext.dev_init) {
 398                         ark->user_data[eth_dev->data->port_id] =
 399                                 ark->user_ext.dev_init(dev, ark->a_bar, p);
 400                 }
 401
 402                 rte_eth_dev_probing_finish(eth_dev);
 403         }
 404
 405         return ret;
 406
 407  error:
 408         if (dev->data->mac_addrs)
 409                 rte_free(dev->data->mac_addrs);
 410         return -1;
 411 }
 412
 413 /*
 414  *Initial device configuration when device is opened
 415  * setup the DDM, and UDM
 416  * Called once per PCIE device
 417  */
 418 static int
 419 ark_config_device(struct rte_eth_dev *dev)
 420 {
 421         struct ark_adapter *ark =
 422                 (struct ark_adapter *)dev->data->dev_private;
 423         uint16_t num_q, i;
 424         struct ark_mpu_t *mpu;
 425
 426         /*
 427          * Make sure that the packet director, generator and checker are in a
 428          * known state
 429          */
 430         ark->start_pg = 0;
 431         ark->pg = ark_pktgen_init(ark->pktgen.v, 0, 1);
 432         if (ark->pg == NULL)
 433                 return -1;
 434         ark_pktgen_reset(ark->pg);
 435         ark->pc = ark_pktchkr_init(ark->pktchkr.v, 0, 1);
 436         if (ark->pc == NULL)
 437                 return -1;
 438         ark_pktchkr_stop(ark->pc);
 439         ark->pd = ark_pktdir_init(ark->pktdir.v);
 440         if (ark->pd == NULL)
 441                 return -1;
 442
 443         /* Verify HW */
 444         if (ark_udm_verify(ark->udm.v))
 445                 return -1;
 446         if (ark_ddm_verify(ark->ddm.v))
 447                 return -1;
 448
 449         /* UDM */
 450         if (ark_udm_reset(ark->udm.v)) {
 451                 PMD_DRV_LOG(ERR, "Unable to stop and reset UDM\n");
 452                 return -1;
 453         }
 454         /* Keep in reset until the MPU are cleared */
 455
 456         /* MPU reset */
 457         mpu = ark->mpurx.v;
 458         num_q = ark_api_num_queues(mpu);
 459         ark->rx_queues = num_q;
 460         for (i = 0; i < num_q; i++) {
 461                 ark_mpu_reset(mpu);
 462                 mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 463         }
 464
 465         ark_udm_stop(ark->udm.v, 0);
 466         ark_udm_configure(ark->udm.v,
 467                           RTE_PKTMBUF_HEADROOM,
 468                           RTE_MBUF_DEFAULT_DATAROOM,
 469                           ARK_RX_WRITE_TIME_NS);
 470         ark_udm_stats_reset(ark->udm.v);
 471         ark_udm_stop(ark->udm.v, 0);
 472
 473         /* TX -- DDM */
 474         if (ark_ddm_stop(ark->ddm.v, 1))
 475                 PMD_DRV_LOG(ERR, "Unable to stop DDM\n");
 476
 477         mpu = ark->mputx.v;
 478         num_q = ark_api_num_queues(mpu);
 479         ark->tx_queues = num_q;
 480         for (i = 0; i < num_q; i++) {
 481                 ark_mpu_reset(mpu);
 482                 mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 483         }
 484
 485         ark_ddm_reset(ark->ddm.v);
 486         ark_ddm_stats_reset(ark->ddm.v);
 487
 488         ark_ddm_stop(ark->ddm.v, 0);
 489         ark_rqp_stats_reset(ark->rqpacing);
 490
 491         return 0;
 492 }
 493
 494 static int
 495 eth_ark_dev_uninit(struct rte_eth_dev *dev)
 496 {
 497         struct ark_adapter *ark =
 498                 (struct ark_adapter *)dev->data->dev_private;
 499
 500         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 501                 return 0;
 502
 503         if (ark->user_ext.dev_uninit)
 504                 ark->user_ext.dev_uninit(dev,
 505                          ark->user_data[dev->data->port_id]);
 506
 507         ark_pktgen_uninit(ark->pg);
 508         ark_pktchkr_uninit(ark->pc);
 509
 510         dev->dev_ops = NULL;
 511         dev->rx_pkt_burst = NULL;
 512         dev->tx_pkt_burst = NULL;
 513         return 0;
 514 }
 515
 516 static int
 517 eth_ark_dev_configure(struct rte_eth_dev *dev)
 518 {
 519         PMD_FUNC_LOG(DEBUG, "\n");
 520         struct ark_adapter *ark =
 521                 (struct ark_adapter *)dev->data->dev_private;
 522
 523         eth_ark_dev_set_link_up(dev);
 524         if (ark->user_ext.dev_configure)
 525                 return ark->user_ext.dev_configure(dev,
 526                            ark->user_data[dev->data->port_id]);
 527         return 0;
 528 }
 529
 530 static void *
 531 delay_pg_start(void *arg)
 532 {
 533         struct ark_adapter *ark = (struct ark_adapter *)arg;
 534
 535         /* This function is used exclusively for regression testing, We
 536          * perform a blind sleep here to ensure that the external test
 537          * application has time to setup the test before we generate packets
 538          */
 539         usleep(100000);
 540         ark_pktgen_run(ark->pg);
 541         return NULL;
 542 }
 543
 544 static int
 545 eth_ark_dev_start(struct rte_eth_dev *dev)
 546 {
 547         struct ark_adapter *ark =
 548                 (struct ark_adapter *)dev->data->dev_private;
 549         int i;
 550
 551         PMD_FUNC_LOG(DEBUG, "\n");
 552
 553         /* RX Side */
 554         /* start UDM */
 555         ark_udm_start(ark->udm.v);
 556
 557         for (i = 0; i < dev->data->nb_rx_queues; i++)
 558                 eth_ark_rx_start_queue(dev, i);
 559
 560         /* TX Side */
 561         for (i = 0; i < dev->data->nb_tx_queues; i++)
 562                 eth_ark_tx_queue_start(dev, i);
 563
 564         /* start DDM */
 565         ark_ddm_start(ark->ddm.v);
 566
 567         ark->started = 1;
 568         /* set xmit and receive function */
 569         dev->rx_pkt_burst = &eth_ark_recv_pkts;
 570         dev->tx_pkt_burst = &eth_ark_xmit_pkts;
 571
 572         if (ark->start_pg)
 573                 ark_pktchkr_run(ark->pc);
 574
 575         if (ark->start_pg && (dev->data->port_id == 0)) {
 576                 pthread_t thread;
 577
 578                 /* Delay packet generatpr start allow the hardware to be ready
 579                  * This is only used for sanity checking with internal generator
 580                  */
 581                 if (pthread_create(&thread, NULL, delay_pg_start, ark)) {
 582                         PMD_DRV_LOG(ERR, "Could not create pktgen "
 583                                     "starter thread\n");
 584                         return -1;
 585                 }
 586         }
 587
 588         if (ark->user_ext.dev_start)
 589                 ark->user_ext.dev_start(dev,
 590                         ark->user_data[dev->data->port_id]);
 591
 592         return 0;
 593 }
 594
 595 static void
 596 eth_ark_dev_stop(struct rte_eth_dev *dev)
 597 {
 598         uint16_t i;
 599         int status;
 600         struct ark_adapter *ark =
 601                 (struct ark_adapter *)dev->data->dev_private;
 602         struct ark_mpu_t *mpu;
 603
 604         PMD_FUNC_LOG(DEBUG, "\n");
 605
 606         if (ark->started == 0)
 607                 return;
 608         ark->started = 0;
 609
 610         /* Stop the extension first */
 611         if (ark->user_ext.dev_stop)
 612                 ark->user_ext.dev_stop(dev,
 613                        ark->user_data[dev->data->port_id]);
 614
 615         /* Stop the packet generator */
 616         if (ark->start_pg)
 617                 ark_pktgen_pause(ark->pg);
 618
 619         dev->rx_pkt_burst = &eth_ark_recv_pkts_noop;
 620         dev->tx_pkt_burst = &eth_ark_xmit_pkts_noop;
 621
 622         /* STOP TX Side */
 623         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 624                 status = eth_ark_tx_queue_stop(dev, i);
 625                 if (status != 0) {
 626                         uint16_t port = dev->data->port_id;
 627                         PMD_DRV_LOG(ERR,
 628                                     "tx_queue stop anomaly"
 629                                     " port %u, queue %u\n",
 630                                     port, i);
 631                 }
 632         }
 633
 634         /* Stop DDM */
 635         /* Wait up to 0.1 second.  each stop is up to 1000 * 10 useconds */
 636         for (i = 0; i < 10; i++) {
 637                 status = ark_ddm_stop(ark->ddm.v, 1);
 638                 if (status == 0)
 639                         break;
 640         }
 641         if (status || i != 0) {
 642                 PMD_DRV_LOG(ERR, "DDM stop anomaly. status:"
 643                             " %d iter: %u. (%s)\n",
 644                             status,
 645                             i,
 646                             __func__);
 647                 ark_ddm_dump(ark->ddm.v, "Stop anomaly");
 648
 649                 mpu = ark->mputx.v;
 650                 for (i = 0; i < ark->tx_queues; i++) {
 651                         ark_mpu_dump(mpu, "DDM failure dump", i);
 652                         mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 653                 }
 654         }
 655
 656         /* STOP RX Side */
 657         /* Stop UDM  multiple tries attempted */
 658         for (i = 0; i < 10; i++) {
 659                 status = ark_udm_stop(ark->udm.v, 1);
 660                 if (status == 0)
 661                         break;
 662         }
 663         if (status || i != 0) {
 664                 PMD_DRV_LOG(ERR, "UDM stop anomaly. status %d iter: %u. (%s)\n",
 665                             status, i, __func__);
 666                 ark_udm_dump(ark->udm.v, "Stop anomaly");
 667
 668                 mpu = ark->mpurx.v;
 669                 for (i = 0; i < ark->rx_queues; i++) {
 670                         ark_mpu_dump(mpu, "UDM Stop anomaly", i);
 671                         mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 672                 }
 673         }
 674
 675         ark_udm_dump_stats(ark->udm.v, "Post stop");
 676         ark_udm_dump_perf(ark->udm.v, "Post stop");
 677
 678         for (i = 0; i < dev->data->nb_rx_queues; i++)
 679                 eth_ark_rx_dump_queue(dev, i, __func__);
 680
 681         /* Stop the packet checker if it is running */
 682         if (ark->start_pg) {
 683                 ark_pktchkr_dump_stats(ark->pc);
 684                 ark_pktchkr_stop(ark->pc);
 685         }
 686 }
 687
 688 static void
 689 eth_ark_dev_close(struct rte_eth_dev *dev)
 690 {
 691         struct ark_adapter *ark =
 692                 (struct ark_adapter *)dev->data->dev_private;
 693         uint16_t i;
 694
 695         if (ark->user_ext.dev_close)
 696                 ark->user_ext.dev_close(dev,
 697                  ark->user_data[dev->data->port_id]);
 698
 699         eth_ark_dev_stop(dev);
 700         eth_ark_udm_force_close(dev);
 701
 702         /*
 703          * TODO This should only be called once for the device during shutdown
 704          */
 705         ark_rqp_dump(ark->rqpacing);
 706
 707         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 708                 eth_ark_tx_queue_release(dev->data->tx_queues[i]);
 709                 dev->data->tx_queues[i] = 0;
 710         }
 711
 712         for (i = 0; i < dev->data->nb_rx_queues; i++) {
 713                 eth_ark_dev_rx_queue_release(dev->data->rx_queues[i]);
 714                 dev->data->rx_queues[i] = 0;
 715         }
 716 }
 717
 718 static void
 719 eth_ark_dev_info_get(struct rte_eth_dev *dev,
 720                      struct rte_eth_dev_info *dev_info)
 721 {
 722         struct ark_adapter *ark =
 723                 (struct ark_adapter *)dev->data->dev_private;
 724         struct ark_mpu_t *tx_mpu = RTE_PTR_ADD(ark->bar0, ARK_MPU_TX_BASE);
 725         struct ark_mpu_t *rx_mpu = RTE_PTR_ADD(ark->bar0, ARK_MPU_RX_BASE);
 726         uint16_t ports = ark->num_ports;
 727
 728         dev_info->max_rx_pktlen = ARK_RX_MAX_PKT_LEN;
 729         dev_info->min_rx_bufsize = ARK_RX_MIN_BUFSIZE;
 730
 731         dev_info->max_rx_queues = ark_api_num_queues_per_port(rx_mpu, ports);
 732         dev_info->max_tx_queues = ark_api_num_queues_per_port(tx_mpu, ports);
 733
 734         dev_info->rx_desc_lim = (struct rte_eth_desc_lim) {
 735                 .nb_max = ARK_RX_MAX_QUEUE,
 736                 .nb_min = ARK_RX_MIN_QUEUE,
 737                 .nb_align = ARK_RX_MIN_QUEUE}; /* power of 2 */
 738
 739         dev_info->tx_desc_lim = (struct rte_eth_desc_lim) {
 740                 .nb_max = ARK_TX_MAX_QUEUE,
 741                 .nb_min = ARK_TX_MIN_QUEUE,
 742                 .nb_align = ARK_TX_MIN_QUEUE}; /* power of 2 */
 743
 744         /* ARK PMD supports all line rates, how do we indicate that here ?? */
 745         dev_info->speed_capa = (ETH_LINK_SPEED_1G |
 746                                 ETH_LINK_SPEED_10G |
 747                                 ETH_LINK_SPEED_25G |
 748                                 ETH_LINK_SPEED_40G |
 749                                 ETH_LINK_SPEED_50G |
 750                                 ETH_LINK_SPEED_100G);
 751 }
 752
 753 static int
 754 eth_ark_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 755 {
 756         PMD_DEBUG_LOG(DEBUG, "link status = %d\n",
 757                         dev->data->dev_link.link_status);
 758         struct ark_adapter *ark =
 759                 (struct ark_adapter *)dev->data->dev_private;
 760
 761         if (ark->user_ext.link_update) {
 762                 return ark->user_ext.link_update
 763                         (dev, wait_to_complete,
 764                          ark->user_data[dev->data->port_id]);
 765         }
 766         return 0;
 767 }
 768
 769 static int
 770 eth_ark_dev_set_link_up(struct rte_eth_dev *dev)
 771 {
 772         dev->data->dev_link.link_status = 1;
 773         struct ark_adapter *ark =
 774                 (struct ark_adapter *)dev->data->dev_private;
 775
 776         if (ark->user_ext.dev_set_link_up)
 777                 return ark->user_ext.dev_set_link_up(dev,
 778                              ark->user_data[dev->data->port_id]);
 779         return 0;
 780 }
 781
 782 static int
 783 eth_ark_dev_set_link_down(struct rte_eth_dev *dev)
 784 {
 785         dev->data->dev_link.link_status = 0;
 786         struct ark_adapter *ark =
 787                 (struct ark_adapter *)dev->data->dev_private;
 788
 789         if (ark->user_ext.dev_set_link_down)
 790                 return ark->user_ext.dev_set_link_down(dev,
 791                        ark->user_data[dev->data->port_id]);
 792         return 0;
 793 }
 794
 795 static int
 796 eth_ark_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 797 {
 798         uint16_t i;
 799         struct ark_adapter *ark =
 800                 (struct ark_adapter *)dev->data->dev_private;
 801
 802         stats->ipackets = 0;
 803         stats->ibytes = 0;
 804         stats->opackets = 0;
 805         stats->obytes = 0;
 806         stats->imissed = 0;
 807         stats->oerrors = 0;
 808
 809         for (i = 0; i < dev->data->nb_tx_queues; i++)
 810                 eth_tx_queue_stats_get(dev->data->tx_queues[i], stats);
 811         for (i = 0; i < dev->data->nb_rx_queues; i++)
 812                 eth_rx_queue_stats_get(dev->data->rx_queues[i], stats);
 813         if (ark->user_ext.stats_get)
 814                 return ark->user_ext.stats_get(dev, stats,
 815                         ark->user_data[dev->data->port_id]);
 816         return 0;
 817 }
 818
 819 static void
 820 eth_ark_dev_stats_reset(struct rte_eth_dev *dev)
 821 {
 822         uint16_t i;
 823         struct ark_adapter *ark =
 824                 (struct ark_adapter *)dev->data->dev_private;
 825
 826         for (i = 0; i < dev->data->nb_tx_queues; i++)
 827                 eth_tx_queue_stats_reset(dev->data->tx_queues[i]);
 828         for (i = 0; i < dev->data->nb_rx_queues; i++)
 829                 eth_rx_queue_stats_reset(dev->data->rx_queues[i]);
 830         if (ark->user_ext.stats_reset)
 831                 ark->user_ext.stats_reset(dev,
 832                           ark->user_data[dev->data->port_id]);
 833 }
 834
 835 static int
 836 eth_ark_macaddr_add(struct rte_eth_dev *dev,
 837                     struct rte_ether_addr *mac_addr,
 838                     uint32_t index,
 839                     uint32_t pool)
 840 {
 841         struct ark_adapter *ark =
 842                 (struct ark_adapter *)dev->data->dev_private;
 843
 844         if (ark->user_ext.mac_addr_add) {
 845                 ark->user_ext.mac_addr_add(dev,
 846                                            mac_addr,
 847                                            index,
 848                                            pool,
 849                            ark->user_data[dev->data->port_id]);
 850                 return 0;
 851         }
 852         return -ENOTSUP;
 853 }
 854
 855 static void
 856 eth_ark_macaddr_remove(struct rte_eth_dev *dev, uint32_t index)
 857 {
 858         struct ark_adapter *ark =
 859                 (struct ark_adapter *)dev->data->dev_private;
 860
 861         if (ark->user_ext.mac_addr_remove)
 862                 ark->user_ext.mac_addr_remove(dev, index,
 863                               ark->user_data[dev->data->port_id]);
 864 }
 865
 866 static int
 867 eth_ark_set_default_mac_addr(struct rte_eth_dev *dev,
 868                              struct rte_ether_addr *mac_addr)
 869 {
 870         struct ark_adapter *ark =
 871                 (struct ark_adapter *)dev->data->dev_private;
 872
 873         if (ark->user_ext.mac_addr_set) {
 874                 ark->user_ext.mac_addr_set(dev, mac_addr,
 875                            ark->user_data[dev->data->port_id]);
 876                 return 0;
 877         }
 878         return -ENOTSUP;
 879 }
 880
 881 static int
 882 eth_ark_set_mtu(struct rte_eth_dev *dev, uint16_t  size)
 883 {
 884         struct ark_adapter *ark =
 885                 (struct ark_adapter *)dev->data->dev_private;
 886
 887         if (ark->user_ext.set_mtu)
 888                 return ark->user_ext.set_mtu(dev, size,
 889                              ark->user_data[dev->data->port_id]);
 890
 891         return -ENOTSUP;
 892 }
 893
 894 static inline int
 895 process_pktdir_arg(const char *key, const char *value,
 896                    void *extra_args)
 897 {
 898         PMD_FUNC_LOG(DEBUG, "key = %s, value = %s\n",
 899                     key, value);
 900         struct ark_adapter *ark =
 901                 (struct ark_adapter *)extra_args;
 902
 903         ark->pkt_dir_v = strtol(value, NULL, 16);
 904         PMD_FUNC_LOG(DEBUG, "pkt_dir_v = 0x%x\n", ark->pkt_dir_v);
 905         return 0;
 906 }
 907
 908 static inline int
 909 process_file_args(const char *key, const char *value, void *extra_args)
 910 {
 911         PMD_FUNC_LOG(DEBUG, "key = %s, value = %s\n",
 912                     key, value);
 913         char *args = (char *)extra_args;
 914
 915         /* Open the configuration file */
 916         FILE *file = fopen(value, "r");
 917         char line[ARK_MAX_ARG_LEN];
 918         int  size = 0;
 919         int first = 1;
 920
 921         if (file == NULL) {
 922                 PMD_DRV_LOG(ERR, "Unable to open "
 923                             "config file %s\n", value);
 924                 return -1;
 925         }
 926
 927         while (fgets(line, sizeof(line), file)) {
 928                 size += strlen(line);
 929                 if (size >= ARK_MAX_ARG_LEN) {
 930                         PMD_DRV_LOG(ERR, "Unable to parse file %s args, "
 931                                     "parameter list is too long\n", value);
 932                         fclose(file);
 933                         return -1;
 934                 }
 935                 if (first) {
 936                         strncpy(args, line, ARK_MAX_ARG_LEN);
 937                         first = 0;
 938                 } else {
 939                         strncat(args, line, ARK_MAX_ARG_LEN);
 940                 }
 941         }
 942         PMD_FUNC_LOG(DEBUG, "file = %s\n", args);
 943         fclose(file);
 944         return 0;
 945 }
 946
 947 static int
 948 eth_ark_check_args(struct ark_adapter *ark, const char *params)
 949 {
 950         struct rte_kvargs *kvlist;
 951         unsigned int k_idx;
 952         struct rte_kvargs_pair *pair = NULL;
 953         int ret = -1;
 954
 955         kvlist = rte_kvargs_parse(params, valid_arguments);
 956         if (kvlist == NULL)
 957                 return 0;
 958
 959         ark->pkt_gen_args[0] = 0;
 960         ark->pkt_chkr_args[0] = 0;
 961
 962         for (k_idx = 0; k_idx < kvlist->count; k_idx++) {
 963                 pair = &kvlist->pairs[k_idx];
 964                 PMD_FUNC_LOG(DEBUG, "**** Arg passed to PMD = %s:%s\n",
 965                              pair->key,
 966                              pair->value);
 967         }
 968
 969         if (rte_kvargs_process(kvlist,
 970                                ARK_PKTDIR_ARG,
 971                                &process_pktdir_arg,
 972                                ark) != 0) {
 973                 PMD_DRV_LOG(ERR, "Unable to parse arg %s\n", ARK_PKTDIR_ARG);
 974                 goto free_kvlist;
 975         }
 976
 977         if (rte_kvargs_process(kvlist,
 978                                ARK_PKTGEN_ARG,
 979                                &process_file_args,
 980                                ark->pkt_gen_args) != 0) {
 981                 PMD_DRV_LOG(ERR, "Unable to parse arg %s\n", ARK_PKTGEN_ARG);
 982                 goto free_kvlist;
 983         }
 984
 985         if (rte_kvargs_process(kvlist,
 986                                ARK_PKTCHKR_ARG,
 987                                &process_file_args,
 988                                ark->pkt_chkr_args) != 0) {
 989                 PMD_DRV_LOG(ERR, "Unable to parse arg %s\n", ARK_PKTCHKR_ARG);
 990                 goto free_kvlist;
 991         }
 992
 993         PMD_DRV_LOG(INFO, "packet director set to 0x%x\n", ark->pkt_dir_v);
 994         /* Setup the packet director */
 995         ark_pktdir_setup(ark->pd, ark->pkt_dir_v);
 996
 997         /* Setup the packet generator */
 998         if (ark->pkt_gen_args[0]) {
 999                 PMD_DRV_LOG(INFO, "Setting up the packet generator\n");
1000                 ark_pktgen_parse(ark->pkt_gen_args);
1001                 ark_pktgen_reset(ark->pg);
1002                 ark_pktgen_setup(ark->pg);
1003                 ark->start_pg = 1;
1004         }
1005
1006         /* Setup the packet checker */
1007         if (ark->pkt_chkr_args[0]) {
1008                 ark_pktchkr_parse(ark->pkt_chkr_args);
1009                 ark_pktchkr_setup(ark->pc);
1010         }
1011
1012         ret = 0;
1013
1014 free_kvlist:
1015         rte_kvargs_free(kvlist);
1016
1017         return ret;
1018 }
1019
1020 RTE_PMD_REGISTER_PCI(net_ark, rte_ark_pmd);
1021 RTE_PMD_REGISTER_KMOD_DEP(net_ark, "* igb_uio | uio_pci_generic ");
1022 RTE_PMD_REGISTER_PCI_TABLE(net_ark, pci_id_ark_map);
1023 RTE_PMD_REGISTER_PARAM_STRING(net_ark,
1024                               ARK_PKTGEN_ARG "=<filename> "
1025                               ARK_PKTCHKR_ARG "=<filename> "
1026                               ARK_PKTDIR_ARG "=<bitmap>");