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 ether_addr *mac_addr);
  45 static int eth_ark_macaddr_add(struct rte_eth_dev *dev,
  46                                struct 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 ether_addr *, uint32_t,
 224                           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 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         dev->dev_ops = &ark_eth_dev_ops;
 317
 318         dev->data->mac_addrs = rte_zmalloc("ark", ETHER_ADDR_LEN, 0);
 319         if (!dev->data->mac_addrs) {
 320                 PMD_DRV_LOG(ERR,
 321                             "Failed to allocated memory for storing mac address"
 322                             );
 323         }
 324
 325         if (ark->user_ext.dev_init) {
 326                 ark->user_data[dev->data->port_id] =
 327                         ark->user_ext.dev_init(dev, ark->a_bar, 0);
 328                 if (!ark->user_data[dev->data->port_id]) {
 329                         PMD_DRV_LOG(INFO,
 330                                     "Failed to initialize PMD extension!"
 331                                     " continuing without it\n");
 332                         memset(&ark->user_ext, 0, sizeof(struct ark_user_ext));
 333                         dlclose(ark->d_handle);
 334                 }
 335         }
 336
 337         if (pci_dev->device.devargs)
 338                 ret = eth_ark_check_args(ark, pci_dev->device.devargs->args);
 339         else
 340                 PMD_DRV_LOG(INFO, "No Device args found\n");
 341
 342         if (ret)
 343                 goto error;
 344         /*
 345          * We will create additional devices based on the number of requested
 346          * ports
 347          */
 348         if (ark->user_ext.dev_get_port_count)
 349                 port_count =
 350                         ark->user_ext.dev_get_port_count(dev,
 351                                  ark->user_data[dev->data->port_id]);
 352         ark->num_ports = port_count;
 353
 354         for (p = 0; p < port_count; p++) {
 355                 struct rte_eth_dev *eth_dev;
 356                 char name[RTE_ETH_NAME_MAX_LEN];
 357
 358                 snprintf(name, sizeof(name), "arketh%d",
 359                          dev->data->port_id + p);
 360
 361                 if (p == 0) {
 362                         /* First port is already allocated by DPDK */
 363                         eth_dev = ark->eth_dev;
 364                         rte_eth_dev_probing_finish(eth_dev);
 365                         continue;
 366                 }
 367
 368                 /* reserve an ethdev entry */
 369                 eth_dev = rte_eth_dev_allocate(name);
 370                 if (!eth_dev) {
 371                         PMD_DRV_LOG(ERR,
 372                                     "Could not allocate eth_dev for port %d\n",
 373                                     p);
 374                         goto error;
 375                 }
 376
 377                 eth_dev->device = &pci_dev->device;
 378                 eth_dev->data->dev_private = ark;
 379                 eth_dev->dev_ops = ark->eth_dev->dev_ops;
 380                 eth_dev->tx_pkt_burst = ark->eth_dev->tx_pkt_burst;
 381                 eth_dev->rx_pkt_burst = ark->eth_dev->rx_pkt_burst;
 382
 383                 rte_eth_copy_pci_info(eth_dev, pci_dev);
 384
 385                 eth_dev->data->mac_addrs = rte_zmalloc(name, ETHER_ADDR_LEN, 0);
 386                 if (!eth_dev->data->mac_addrs) {
 387                         PMD_DRV_LOG(ERR,
 388                                     "Memory allocation for MAC failed!"
 389                                     " Exiting.\n");
 390                         goto error;
 391                 }
 392
 393                 if (ark->user_ext.dev_init) {
 394                         ark->user_data[eth_dev->data->port_id] =
 395                                 ark->user_ext.dev_init(dev, ark->a_bar, p);
 396                 }
 397
 398                 rte_eth_dev_probing_finish(eth_dev);
 399         }
 400
 401         return ret;
 402
 403  error:
 404         if (dev->data->mac_addrs)
 405                 rte_free(dev->data->mac_addrs);
 406         return -1;
 407 }
 408
 409 /*
 410  *Initial device configuration when device is opened
 411  * setup the DDM, and UDM
 412  * Called once per PCIE device
 413  */
 414 static int
 415 ark_config_device(struct rte_eth_dev *dev)
 416 {
 417         struct ark_adapter *ark =
 418                 (struct ark_adapter *)dev->data->dev_private;
 419         uint16_t num_q, i;
 420         struct ark_mpu_t *mpu;
 421
 422         /*
 423          * Make sure that the packet director, generator and checker are in a
 424          * known state
 425          */
 426         ark->start_pg = 0;
 427         ark->pg = ark_pktgen_init(ark->pktgen.v, 0, 1);
 428         if (ark->pg == NULL)
 429                 return -1;
 430         ark_pktgen_reset(ark->pg);
 431         ark->pc = ark_pktchkr_init(ark->pktchkr.v, 0, 1);
 432         if (ark->pc == NULL)
 433                 return -1;
 434         ark_pktchkr_stop(ark->pc);
 435         ark->pd = ark_pktdir_init(ark->pktdir.v);
 436         if (ark->pd == NULL)
 437                 return -1;
 438
 439         /* Verify HW */
 440         if (ark_udm_verify(ark->udm.v))
 441                 return -1;
 442         if (ark_ddm_verify(ark->ddm.v))
 443                 return -1;
 444
 445         /* UDM */
 446         if (ark_udm_reset(ark->udm.v)) {
 447                 PMD_DRV_LOG(ERR, "Unable to stop and reset UDM\n");
 448                 return -1;
 449         }
 450         /* Keep in reset until the MPU are cleared */
 451
 452         /* MPU reset */
 453         mpu = ark->mpurx.v;
 454         num_q = ark_api_num_queues(mpu);
 455         ark->rx_queues = num_q;
 456         for (i = 0; i < num_q; i++) {
 457                 ark_mpu_reset(mpu);
 458                 mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 459         }
 460
 461         ark_udm_stop(ark->udm.v, 0);
 462         ark_udm_configure(ark->udm.v,
 463                           RTE_PKTMBUF_HEADROOM,
 464                           RTE_MBUF_DEFAULT_DATAROOM,
 465                           ARK_RX_WRITE_TIME_NS);
 466         ark_udm_stats_reset(ark->udm.v);
 467         ark_udm_stop(ark->udm.v, 0);
 468
 469         /* TX -- DDM */
 470         if (ark_ddm_stop(ark->ddm.v, 1))
 471                 PMD_DRV_LOG(ERR, "Unable to stop DDM\n");
 472
 473         mpu = ark->mputx.v;
 474         num_q = ark_api_num_queues(mpu);
 475         ark->tx_queues = num_q;
 476         for (i = 0; i < num_q; i++) {
 477                 ark_mpu_reset(mpu);
 478                 mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 479         }
 480
 481         ark_ddm_reset(ark->ddm.v);
 482         ark_ddm_stats_reset(ark->ddm.v);
 483
 484         ark_ddm_stop(ark->ddm.v, 0);
 485         ark_rqp_stats_reset(ark->rqpacing);
 486
 487         return 0;
 488 }
 489
 490 static int
 491 eth_ark_dev_uninit(struct rte_eth_dev *dev)
 492 {
 493         struct ark_adapter *ark =
 494                 (struct ark_adapter *)dev->data->dev_private;
 495
 496         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 497                 return 0;
 498
 499         if (ark->user_ext.dev_uninit)
 500                 ark->user_ext.dev_uninit(dev,
 501                          ark->user_data[dev->data->port_id]);
 502
 503         ark_pktgen_uninit(ark->pg);
 504         ark_pktchkr_uninit(ark->pc);
 505
 506         dev->dev_ops = NULL;
 507         dev->rx_pkt_burst = NULL;
 508         dev->tx_pkt_burst = NULL;
 509         rte_free(dev->data->mac_addrs);
 510         return 0;
 511 }
 512
 513 static int
 514 eth_ark_dev_configure(struct rte_eth_dev *dev)
 515 {
 516         PMD_FUNC_LOG(DEBUG, "\n");
 517         struct ark_adapter *ark =
 518                 (struct ark_adapter *)dev->data->dev_private;
 519
 520         eth_ark_dev_set_link_up(dev);
 521         if (ark->user_ext.dev_configure)
 522                 return ark->user_ext.dev_configure(dev,
 523                            ark->user_data[dev->data->port_id]);
 524         return 0;
 525 }
 526
 527 static void *
 528 delay_pg_start(void *arg)
 529 {
 530         struct ark_adapter *ark = (struct ark_adapter *)arg;
 531
 532         /* This function is used exclusively for regression testing, We
 533          * perform a blind sleep here to ensure that the external test
 534          * application has time to setup the test before we generate packets
 535          */
 536         usleep(100000);
 537         ark_pktgen_run(ark->pg);
 538         return NULL;
 539 }
 540
 541 static int
 542 eth_ark_dev_start(struct rte_eth_dev *dev)
 543 {
 544         struct ark_adapter *ark =
 545                 (struct ark_adapter *)dev->data->dev_private;
 546         int i;
 547
 548         PMD_FUNC_LOG(DEBUG, "\n");
 549
 550         /* RX Side */
 551         /* start UDM */
 552         ark_udm_start(ark->udm.v);
 553
 554         for (i = 0; i < dev->data->nb_rx_queues; i++)
 555                 eth_ark_rx_start_queue(dev, i);
 556
 557         /* TX Side */
 558         for (i = 0; i < dev->data->nb_tx_queues; i++)
 559                 eth_ark_tx_queue_start(dev, i);
 560
 561         /* start DDM */
 562         ark_ddm_start(ark->ddm.v);
 563
 564         ark->started = 1;
 565         /* set xmit and receive function */
 566         dev->rx_pkt_burst = &eth_ark_recv_pkts;
 567         dev->tx_pkt_burst = &eth_ark_xmit_pkts;
 568
 569         if (ark->start_pg)
 570                 ark_pktchkr_run(ark->pc);
 571
 572         if (ark->start_pg && (dev->data->port_id == 0)) {
 573                 pthread_t thread;
 574
 575                 /* Delay packet generatpr start allow the hardware to be ready
 576                  * This is only used for sanity checking with internal generator
 577                  */
 578                 if (pthread_create(&thread, NULL, delay_pg_start, ark)) {
 579                         PMD_DRV_LOG(ERR, "Could not create pktgen "
 580                                     "starter thread\n");
 581                         return -1;
 582                 }
 583         }
 584
 585         if (ark->user_ext.dev_start)
 586                 ark->user_ext.dev_start(dev,
 587                         ark->user_data[dev->data->port_id]);
 588
 589         return 0;
 590 }
 591
 592 static void
 593 eth_ark_dev_stop(struct rte_eth_dev *dev)
 594 {
 595         uint16_t i;
 596         int status;
 597         struct ark_adapter *ark =
 598                 (struct ark_adapter *)dev->data->dev_private;
 599         struct ark_mpu_t *mpu;
 600
 601         PMD_FUNC_LOG(DEBUG, "\n");
 602
 603         if (ark->started == 0)
 604                 return;
 605         ark->started = 0;
 606
 607         /* Stop the extension first */
 608         if (ark->user_ext.dev_stop)
 609                 ark->user_ext.dev_stop(dev,
 610                        ark->user_data[dev->data->port_id]);
 611
 612         /* Stop the packet generator */
 613         if (ark->start_pg)
 614                 ark_pktgen_pause(ark->pg);
 615
 616         dev->rx_pkt_burst = &eth_ark_recv_pkts_noop;
 617         dev->tx_pkt_burst = &eth_ark_xmit_pkts_noop;
 618
 619         /* STOP TX Side */
 620         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 621                 status = eth_ark_tx_queue_stop(dev, i);
 622                 if (status != 0) {
 623                         uint16_t port = dev->data->port_id;
 624                         PMD_DRV_LOG(ERR,
 625                                     "tx_queue stop anomaly"
 626                                     " port %u, queue %u\n",
 627                                     port, i);
 628                 }
 629         }
 630
 631         /* Stop DDM */
 632         /* Wait up to 0.1 second.  each stop is up to 1000 * 10 useconds */
 633         for (i = 0; i < 10; i++) {
 634                 status = ark_ddm_stop(ark->ddm.v, 1);
 635                 if (status == 0)
 636                         break;
 637         }
 638         if (status || i != 0) {
 639                 PMD_DRV_LOG(ERR, "DDM stop anomaly. status:"
 640                             " %d iter: %u. (%s)\n",
 641                             status,
 642                             i,
 643                             __func__);
 644                 ark_ddm_dump(ark->ddm.v, "Stop anomaly");
 645
 646                 mpu = ark->mputx.v;
 647                 for (i = 0; i < ark->tx_queues; i++) {
 648                         ark_mpu_dump(mpu, "DDM failure dump", i);
 649                         mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 650                 }
 651         }
 652
 653         /* STOP RX Side */
 654         /* Stop UDM  multiple tries attempted */
 655         for (i = 0; i < 10; i++) {
 656                 status = ark_udm_stop(ark->udm.v, 1);
 657                 if (status == 0)
 658                         break;
 659         }
 660         if (status || i != 0) {
 661                 PMD_DRV_LOG(ERR, "UDM stop anomaly. status %d iter: %u. (%s)\n",
 662                             status, i, __func__);
 663                 ark_udm_dump(ark->udm.v, "Stop anomaly");
 664
 665                 mpu = ark->mpurx.v;
 666                 for (i = 0; i < ark->rx_queues; i++) {
 667                         ark_mpu_dump(mpu, "UDM Stop anomaly", i);
 668                         mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 669                 }
 670         }
 671
 672         ark_udm_dump_stats(ark->udm.v, "Post stop");
 673         ark_udm_dump_perf(ark->udm.v, "Post stop");
 674
 675         for (i = 0; i < dev->data->nb_rx_queues; i++)
 676                 eth_ark_rx_dump_queue(dev, i, __func__);
 677
 678         /* Stop the packet checker if it is running */
 679         if (ark->start_pg) {
 680                 ark_pktchkr_dump_stats(ark->pc);
 681                 ark_pktchkr_stop(ark->pc);
 682         }
 683 }
 684
 685 static void
 686 eth_ark_dev_close(struct rte_eth_dev *dev)
 687 {
 688         struct ark_adapter *ark =
 689                 (struct ark_adapter *)dev->data->dev_private;
 690         uint16_t i;
 691
 692         if (ark->user_ext.dev_close)
 693                 ark->user_ext.dev_close(dev,
 694                  ark->user_data[dev->data->port_id]);
 695
 696         eth_ark_dev_stop(dev);
 697         eth_ark_udm_force_close(dev);
 698
 699         /*
 700          * TODO This should only be called once for the device during shutdown
 701          */
 702         ark_rqp_dump(ark->rqpacing);
 703
 704         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 705                 eth_ark_tx_queue_release(dev->data->tx_queues[i]);
 706                 dev->data->tx_queues[i] = 0;
 707         }
 708
 709         for (i = 0; i < dev->data->nb_rx_queues; i++) {
 710                 eth_ark_dev_rx_queue_release(dev->data->rx_queues[i]);
 711                 dev->data->rx_queues[i] = 0;
 712         }
 713 }
 714
 715 static void
 716 eth_ark_dev_info_get(struct rte_eth_dev *dev,
 717                      struct rte_eth_dev_info *dev_info)
 718 {
 719         struct ark_adapter *ark =
 720                 (struct ark_adapter *)dev->data->dev_private;
 721         struct ark_mpu_t *tx_mpu = RTE_PTR_ADD(ark->bar0, ARK_MPU_TX_BASE);
 722         struct ark_mpu_t *rx_mpu = RTE_PTR_ADD(ark->bar0, ARK_MPU_RX_BASE);
 723         uint16_t ports = ark->num_ports;
 724
 725         dev_info->max_rx_pktlen = ARK_RX_MAX_PKT_LEN;
 726         dev_info->min_rx_bufsize = ARK_RX_MIN_BUFSIZE;
 727
 728         dev_info->max_rx_queues = ark_api_num_queues_per_port(rx_mpu, ports);
 729         dev_info->max_tx_queues = ark_api_num_queues_per_port(tx_mpu, ports);
 730
 731         dev_info->rx_desc_lim = (struct rte_eth_desc_lim) {
 732                 .nb_max = ARK_RX_MAX_QUEUE,
 733                 .nb_min = ARK_RX_MIN_QUEUE,
 734                 .nb_align = ARK_RX_MIN_QUEUE}; /* power of 2 */
 735
 736         dev_info->tx_desc_lim = (struct rte_eth_desc_lim) {
 737                 .nb_max = ARK_TX_MAX_QUEUE,
 738                 .nb_min = ARK_TX_MIN_QUEUE,
 739                 .nb_align = ARK_TX_MIN_QUEUE}; /* power of 2 */
 740
 741         /* ARK PMD supports all line rates, how do we indicate that here ?? */
 742         dev_info->speed_capa = (ETH_LINK_SPEED_1G |
 743                                 ETH_LINK_SPEED_10G |
 744                                 ETH_LINK_SPEED_25G |
 745                                 ETH_LINK_SPEED_40G |
 746                                 ETH_LINK_SPEED_50G |
 747                                 ETH_LINK_SPEED_100G);
 748 }
 749
 750 static int
 751 eth_ark_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 752 {
 753         PMD_DEBUG_LOG(DEBUG, "link status = %d\n",
 754                         dev->data->dev_link.link_status);
 755         struct ark_adapter *ark =
 756                 (struct ark_adapter *)dev->data->dev_private;
 757
 758         if (ark->user_ext.link_update) {
 759                 return ark->user_ext.link_update
 760                         (dev, wait_to_complete,
 761                          ark->user_data[dev->data->port_id]);
 762         }
 763         return 0;
 764 }
 765
 766 static int
 767 eth_ark_dev_set_link_up(struct rte_eth_dev *dev)
 768 {
 769         dev->data->dev_link.link_status = 1;
 770         struct ark_adapter *ark =
 771                 (struct ark_adapter *)dev->data->dev_private;
 772
 773         if (ark->user_ext.dev_set_link_up)
 774                 return ark->user_ext.dev_set_link_up(dev,
 775                              ark->user_data[dev->data->port_id]);
 776         return 0;
 777 }
 778
 779 static int
 780 eth_ark_dev_set_link_down(struct rte_eth_dev *dev)
 781 {
 782         dev->data->dev_link.link_status = 0;
 783         struct ark_adapter *ark =
 784                 (struct ark_adapter *)dev->data->dev_private;
 785
 786         if (ark->user_ext.dev_set_link_down)
 787                 return ark->user_ext.dev_set_link_down(dev,
 788                        ark->user_data[dev->data->port_id]);
 789         return 0;
 790 }
 791
 792 static int
 793 eth_ark_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 794 {
 795         uint16_t i;
 796         struct ark_adapter *ark =
 797                 (struct ark_adapter *)dev->data->dev_private;
 798
 799         stats->ipackets = 0;
 800         stats->ibytes = 0;
 801         stats->opackets = 0;
 802         stats->obytes = 0;
 803         stats->imissed = 0;
 804         stats->oerrors = 0;
 805
 806         for (i = 0; i < dev->data->nb_tx_queues; i++)
 807                 eth_tx_queue_stats_get(dev->data->tx_queues[i], stats);
 808         for (i = 0; i < dev->data->nb_rx_queues; i++)
 809                 eth_rx_queue_stats_get(dev->data->rx_queues[i], stats);
 810         if (ark->user_ext.stats_get)
 811                 return ark->user_ext.stats_get(dev, stats,
 812                         ark->user_data[dev->data->port_id]);
 813         return 0;
 814 }
 815
 816 static void
 817 eth_ark_dev_stats_reset(struct rte_eth_dev *dev)
 818 {
 819         uint16_t i;
 820         struct ark_adapter *ark =
 821                 (struct ark_adapter *)dev->data->dev_private;
 822
 823         for (i = 0; i < dev->data->nb_tx_queues; i++)
 824                 eth_tx_queue_stats_reset(dev->data->tx_queues[i]);
 825         for (i = 0; i < dev->data->nb_rx_queues; i++)
 826                 eth_rx_queue_stats_reset(dev->data->rx_queues[i]);
 827         if (ark->user_ext.stats_reset)
 828                 ark->user_ext.stats_reset(dev,
 829                           ark->user_data[dev->data->port_id]);
 830 }
 831
 832 static int
 833 eth_ark_macaddr_add(struct rte_eth_dev *dev,
 834                     struct ether_addr *mac_addr,
 835                     uint32_t index,
 836                     uint32_t pool)
 837 {
 838         struct ark_adapter *ark =
 839                 (struct ark_adapter *)dev->data->dev_private;
 840
 841         if (ark->user_ext.mac_addr_add) {
 842                 ark->user_ext.mac_addr_add(dev,
 843                                            mac_addr,
 844                                            index,
 845                                            pool,
 846                            ark->user_data[dev->data->port_id]);
 847                 return 0;
 848         }
 849         return -ENOTSUP;
 850 }
 851
 852 static void
 853 eth_ark_macaddr_remove(struct rte_eth_dev *dev, uint32_t index)
 854 {
 855         struct ark_adapter *ark =
 856                 (struct ark_adapter *)dev->data->dev_private;
 857
 858         if (ark->user_ext.mac_addr_remove)
 859                 ark->user_ext.mac_addr_remove(dev, index,
 860                               ark->user_data[dev->data->port_id]);
 861 }
 862
 863 static int
 864 eth_ark_set_default_mac_addr(struct rte_eth_dev *dev,
 865                              struct ether_addr *mac_addr)
 866 {
 867         struct ark_adapter *ark =
 868                 (struct ark_adapter *)dev->data->dev_private;
 869
 870         if (ark->user_ext.mac_addr_set) {
 871                 ark->user_ext.mac_addr_set(dev, mac_addr,
 872                            ark->user_data[dev->data->port_id]);
 873                 return 0;
 874         }
 875         return -ENOTSUP;
 876 }
 877
 878 static int
 879 eth_ark_set_mtu(struct rte_eth_dev *dev, uint16_t  size)
 880 {
 881         struct ark_adapter *ark =
 882                 (struct ark_adapter *)dev->data->dev_private;
 883
 884         if (ark->user_ext.set_mtu)
 885                 return ark->user_ext.set_mtu(dev, size,
 886                              ark->user_data[dev->data->port_id]);
 887
 888         return -ENOTSUP;
 889 }
 890
 891 static inline int
 892 process_pktdir_arg(const char *key, const char *value,
 893                    void *extra_args)
 894 {
 895         PMD_FUNC_LOG(DEBUG, "key = %s, value = %s\n",
 896                     key, value);
 897         struct ark_adapter *ark =
 898                 (struct ark_adapter *)extra_args;
 899
 900         ark->pkt_dir_v = strtol(value, NULL, 16);
 901         PMD_FUNC_LOG(DEBUG, "pkt_dir_v = 0x%x\n", ark->pkt_dir_v);
 902         return 0;
 903 }
 904
 905 static inline int
 906 process_file_args(const char *key, const char *value, void *extra_args)
 907 {
 908         PMD_FUNC_LOG(DEBUG, "key = %s, value = %s\n",
 909                     key, value);
 910         char *args = (char *)extra_args;
 911
 912         /* Open the configuration file */
 913         FILE *file = fopen(value, "r");
 914         char line[ARK_MAX_ARG_LEN];
 915         int  size = 0;
 916         int first = 1;
 917
 918         if (file == NULL) {
 919                 PMD_DRV_LOG(ERR, "Unable to open "
 920                             "config file %s\n", value);
 921                 return -1;
 922         }
 923
 924         while (fgets(line, sizeof(line), file)) {
 925                 size += strlen(line);
 926                 if (size >= ARK_MAX_ARG_LEN) {
 927                         PMD_DRV_LOG(ERR, "Unable to parse file %s args, "
 928                                     "parameter list is too long\n", value);
 929                         fclose(file);
 930                         return -1;
 931                 }
 932                 if (first) {
 933                         strncpy(args, line, ARK_MAX_ARG_LEN);
 934                         first = 0;
 935                 } else {
 936                         strncat(args, line, ARK_MAX_ARG_LEN);
 937                 }
 938         }
 939         PMD_FUNC_LOG(DEBUG, "file = %s\n", args);
 940         fclose(file);
 941         return 0;
 942 }
 943
 944 static int
 945 eth_ark_check_args(struct ark_adapter *ark, const char *params)
 946 {
 947         struct rte_kvargs *kvlist;
 948         unsigned int k_idx;
 949         struct rte_kvargs_pair *pair = NULL;
 950         int ret = -1;
 951
 952         kvlist = rte_kvargs_parse(params, valid_arguments);
 953         if (kvlist == NULL)
 954                 return 0;
 955
 956         ark->pkt_gen_args[0] = 0;
 957         ark->pkt_chkr_args[0] = 0;
 958
 959         for (k_idx = 0; k_idx < kvlist->count; k_idx++) {
 960                 pair = &kvlist->pairs[k_idx];
 961                 PMD_FUNC_LOG(DEBUG, "**** Arg passed to PMD = %s:%s\n",
 962                              pair->key,
 963                              pair->value);
 964         }
 965
 966         if (rte_kvargs_process(kvlist,
 967                                ARK_PKTDIR_ARG,
 968                                &process_pktdir_arg,
 969                                ark) != 0) {
 970                 PMD_DRV_LOG(ERR, "Unable to parse arg %s\n", ARK_PKTDIR_ARG);
 971                 goto free_kvlist;
 972         }
 973
 974         if (rte_kvargs_process(kvlist,
 975                                ARK_PKTGEN_ARG,
 976                                &process_file_args,
 977                                ark->pkt_gen_args) != 0) {
 978                 PMD_DRV_LOG(ERR, "Unable to parse arg %s\n", ARK_PKTGEN_ARG);
 979                 goto free_kvlist;
 980         }
 981
 982         if (rte_kvargs_process(kvlist,
 983                                ARK_PKTCHKR_ARG,
 984                                &process_file_args,
 985                                ark->pkt_chkr_args) != 0) {
 986                 PMD_DRV_LOG(ERR, "Unable to parse arg %s\n", ARK_PKTCHKR_ARG);
 987                 goto free_kvlist;
 988         }
 989
 990         PMD_DRV_LOG(INFO, "packet director set to 0x%x\n", ark->pkt_dir_v);
 991         /* Setup the packet director */
 992         ark_pktdir_setup(ark->pd, ark->pkt_dir_v);
 993
 994         /* Setup the packet generator */
 995         if (ark->pkt_gen_args[0]) {
 996                 PMD_DRV_LOG(INFO, "Setting up the packet generator\n");
 997                 ark_pktgen_parse(ark->pkt_gen_args);
 998                 ark_pktgen_reset(ark->pg);
 999                 ark_pktgen_setup(ark->pg);
1000                 ark->start_pg = 1;
1001         }
1002
1003         /* Setup the packet checker */
1004         if (ark->pkt_chkr_args[0]) {
1005                 ark_pktchkr_parse(ark->pkt_chkr_args);
1006                 ark_pktchkr_setup(ark->pc);
1007         }
1008
1009         ret = 0;
1010
1011 free_kvlist:
1012         rte_kvargs_free(kvlist);
1013
1014         return ret;
1015 }
1016
1017 RTE_PMD_REGISTER_PCI(net_ark, rte_ark_pmd);
1018 RTE_PMD_REGISTER_KMOD_DEP(net_ark, "* igb_uio | uio_pci_generic ");
1019 RTE_PMD_REGISTER_PCI_TABLE(net_ark, pci_id_ark_map);
1020 RTE_PMD_REGISTER_PARAM_STRING(net_ark,
1021                               ARK_PKTGEN_ARG "=<filename> "
1022                               ARK_PKTCHKR_ARG "=<filename> "
1023                               ARK_PKTDIR_ARG "=<bitmap>");