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", 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, ETHER_ADDR_LEN, 0);
 389                 if (!eth_dev->data->mac_addrs) {
 390                         PMD_DRV_LOG(ERR,
 391                                     "Memory allocation for MAC failed!"
 392                                     " Exiting.\n");
 393                         goto error;
 394                 }
 395
 396                 if (ark->user_ext.dev_init) {
 397                         ark->user_data[eth_dev->data->port_id] =
 398                                 ark->user_ext.dev_init(dev, ark->a_bar, p);
 399                 }
 400
 401                 rte_eth_dev_probing_finish(eth_dev);
 402         }
 403
 404         return ret;
 405
 406  error:
 407         if (dev->data->mac_addrs)
 408                 rte_free(dev->data->mac_addrs);
 409         return -1;
 410 }
 411
 412 /*
 413  *Initial device configuration when device is opened
 414  * setup the DDM, and UDM
 415  * Called once per PCIE device
 416  */
 417 static int
 418 ark_config_device(struct rte_eth_dev *dev)
 419 {
 420         struct ark_adapter *ark =
 421                 (struct ark_adapter *)dev->data->dev_private;
 422         uint16_t num_q, i;
 423         struct ark_mpu_t *mpu;
 424
 425         /*
 426          * Make sure that the packet director, generator and checker are in a
 427          * known state
 428          */
 429         ark->start_pg = 0;
 430         ark->pg = ark_pktgen_init(ark->pktgen.v, 0, 1);
 431         if (ark->pg == NULL)
 432                 return -1;
 433         ark_pktgen_reset(ark->pg);
 434         ark->pc = ark_pktchkr_init(ark->pktchkr.v, 0, 1);
 435         if (ark->pc == NULL)
 436                 return -1;
 437         ark_pktchkr_stop(ark->pc);
 438         ark->pd = ark_pktdir_init(ark->pktdir.v);
 439         if (ark->pd == NULL)
 440                 return -1;
 441
 442         /* Verify HW */
 443         if (ark_udm_verify(ark->udm.v))
 444                 return -1;
 445         if (ark_ddm_verify(ark->ddm.v))
 446                 return -1;
 447
 448         /* UDM */
 449         if (ark_udm_reset(ark->udm.v)) {
 450                 PMD_DRV_LOG(ERR, "Unable to stop and reset UDM\n");
 451                 return -1;
 452         }
 453         /* Keep in reset until the MPU are cleared */
 454
 455         /* MPU reset */
 456         mpu = ark->mpurx.v;
 457         num_q = ark_api_num_queues(mpu);
 458         ark->rx_queues = num_q;
 459         for (i = 0; i < num_q; i++) {
 460                 ark_mpu_reset(mpu);
 461                 mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 462         }
 463
 464         ark_udm_stop(ark->udm.v, 0);
 465         ark_udm_configure(ark->udm.v,
 466                           RTE_PKTMBUF_HEADROOM,
 467                           RTE_MBUF_DEFAULT_DATAROOM,
 468                           ARK_RX_WRITE_TIME_NS);
 469         ark_udm_stats_reset(ark->udm.v);
 470         ark_udm_stop(ark->udm.v, 0);
 471
 472         /* TX -- DDM */
 473         if (ark_ddm_stop(ark->ddm.v, 1))
 474                 PMD_DRV_LOG(ERR, "Unable to stop DDM\n");
 475
 476         mpu = ark->mputx.v;
 477         num_q = ark_api_num_queues(mpu);
 478         ark->tx_queues = num_q;
 479         for (i = 0; i < num_q; i++) {
 480                 ark_mpu_reset(mpu);
 481                 mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 482         }
 483
 484         ark_ddm_reset(ark->ddm.v);
 485         ark_ddm_stats_reset(ark->ddm.v);
 486
 487         ark_ddm_stop(ark->ddm.v, 0);
 488         ark_rqp_stats_reset(ark->rqpacing);
 489
 490         return 0;
 491 }
 492
 493 static int
 494 eth_ark_dev_uninit(struct rte_eth_dev *dev)
 495 {
 496         struct ark_adapter *ark =
 497                 (struct ark_adapter *)dev->data->dev_private;
 498
 499         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 500                 return 0;
 501
 502         if (ark->user_ext.dev_uninit)
 503                 ark->user_ext.dev_uninit(dev,
 504                          ark->user_data[dev->data->port_id]);
 505
 506         ark_pktgen_uninit(ark->pg);
 507         ark_pktchkr_uninit(ark->pc);
 508
 509         dev->dev_ops = NULL;
 510         dev->rx_pkt_burst = NULL;
 511         dev->tx_pkt_burst = NULL;
 512         return 0;
 513 }
 514
 515 static int
 516 eth_ark_dev_configure(struct rte_eth_dev *dev)
 517 {
 518         PMD_FUNC_LOG(DEBUG, "\n");
 519         struct ark_adapter *ark =
 520                 (struct ark_adapter *)dev->data->dev_private;
 521
 522         eth_ark_dev_set_link_up(dev);
 523         if (ark->user_ext.dev_configure)
 524                 return ark->user_ext.dev_configure(dev,
 525                            ark->user_data[dev->data->port_id]);
 526         return 0;
 527 }
 528
 529 static void *
 530 delay_pg_start(void *arg)
 531 {
 532         struct ark_adapter *ark = (struct ark_adapter *)arg;
 533
 534         /* This function is used exclusively for regression testing, We
 535          * perform a blind sleep here to ensure that the external test
 536          * application has time to setup the test before we generate packets
 537          */
 538         usleep(100000);
 539         ark_pktgen_run(ark->pg);
 540         return NULL;
 541 }
 542
 543 static int
 544 eth_ark_dev_start(struct rte_eth_dev *dev)
 545 {
 546         struct ark_adapter *ark =
 547                 (struct ark_adapter *)dev->data->dev_private;
 548         int i;
 549
 550         PMD_FUNC_LOG(DEBUG, "\n");
 551
 552         /* RX Side */
 553         /* start UDM */
 554         ark_udm_start(ark->udm.v);
 555
 556         for (i = 0; i < dev->data->nb_rx_queues; i++)
 557                 eth_ark_rx_start_queue(dev, i);
 558
 559         /* TX Side */
 560         for (i = 0; i < dev->data->nb_tx_queues; i++)
 561                 eth_ark_tx_queue_start(dev, i);
 562
 563         /* start DDM */
 564         ark_ddm_start(ark->ddm.v);
 565
 566         ark->started = 1;
 567         /* set xmit and receive function */
 568         dev->rx_pkt_burst = &eth_ark_recv_pkts;
 569         dev->tx_pkt_burst = &eth_ark_xmit_pkts;
 570
 571         if (ark->start_pg)
 572                 ark_pktchkr_run(ark->pc);
 573
 574         if (ark->start_pg && (dev->data->port_id == 0)) {
 575                 pthread_t thread;
 576
 577                 /* Delay packet generatpr start allow the hardware to be ready
 578                  * This is only used for sanity checking with internal generator
 579                  */
 580                 if (pthread_create(&thread, NULL, delay_pg_start, ark)) {
 581                         PMD_DRV_LOG(ERR, "Could not create pktgen "
 582                                     "starter thread\n");
 583                         return -1;
 584                 }
 585         }
 586
 587         if (ark->user_ext.dev_start)
 588                 ark->user_ext.dev_start(dev,
 589                         ark->user_data[dev->data->port_id]);
 590
 591         return 0;
 592 }
 593
 594 static void
 595 eth_ark_dev_stop(struct rte_eth_dev *dev)
 596 {
 597         uint16_t i;
 598         int status;
 599         struct ark_adapter *ark =
 600                 (struct ark_adapter *)dev->data->dev_private;
 601         struct ark_mpu_t *mpu;
 602
 603         PMD_FUNC_LOG(DEBUG, "\n");
 604
 605         if (ark->started == 0)
 606                 return;
 607         ark->started = 0;
 608
 609         /* Stop the extension first */
 610         if (ark->user_ext.dev_stop)
 611                 ark->user_ext.dev_stop(dev,
 612                        ark->user_data[dev->data->port_id]);
 613
 614         /* Stop the packet generator */
 615         if (ark->start_pg)
 616                 ark_pktgen_pause(ark->pg);
 617
 618         dev->rx_pkt_burst = &eth_ark_recv_pkts_noop;
 619         dev->tx_pkt_burst = &eth_ark_xmit_pkts_noop;
 620
 621         /* STOP TX Side */
 622         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 623                 status = eth_ark_tx_queue_stop(dev, i);
 624                 if (status != 0) {
 625                         uint16_t port = dev->data->port_id;
 626                         PMD_DRV_LOG(ERR,
 627                                     "tx_queue stop anomaly"
 628                                     " port %u, queue %u\n",
 629                                     port, i);
 630                 }
 631         }
 632
 633         /* Stop DDM */
 634         /* Wait up to 0.1 second.  each stop is up to 1000 * 10 useconds */
 635         for (i = 0; i < 10; i++) {
 636                 status = ark_ddm_stop(ark->ddm.v, 1);
 637                 if (status == 0)
 638                         break;
 639         }
 640         if (status || i != 0) {
 641                 PMD_DRV_LOG(ERR, "DDM stop anomaly. status:"
 642                             " %d iter: %u. (%s)\n",
 643                             status,
 644                             i,
 645                             __func__);
 646                 ark_ddm_dump(ark->ddm.v, "Stop anomaly");
 647
 648                 mpu = ark->mputx.v;
 649                 for (i = 0; i < ark->tx_queues; i++) {
 650                         ark_mpu_dump(mpu, "DDM failure dump", i);
 651                         mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 652                 }
 653         }
 654
 655         /* STOP RX Side */
 656         /* Stop UDM  multiple tries attempted */
 657         for (i = 0; i < 10; i++) {
 658                 status = ark_udm_stop(ark->udm.v, 1);
 659                 if (status == 0)
 660                         break;
 661         }
 662         if (status || i != 0) {
 663                 PMD_DRV_LOG(ERR, "UDM stop anomaly. status %d iter: %u. (%s)\n",
 664                             status, i, __func__);
 665                 ark_udm_dump(ark->udm.v, "Stop anomaly");
 666
 667                 mpu = ark->mpurx.v;
 668                 for (i = 0; i < ark->rx_queues; i++) {
 669                         ark_mpu_dump(mpu, "UDM Stop anomaly", i);
 670                         mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 671                 }
 672         }
 673
 674         ark_udm_dump_stats(ark->udm.v, "Post stop");
 675         ark_udm_dump_perf(ark->udm.v, "Post stop");
 676
 677         for (i = 0; i < dev->data->nb_rx_queues; i++)
 678                 eth_ark_rx_dump_queue(dev, i, __func__);
 679
 680         /* Stop the packet checker if it is running */
 681         if (ark->start_pg) {
 682                 ark_pktchkr_dump_stats(ark->pc);
 683                 ark_pktchkr_stop(ark->pc);
 684         }
 685 }
 686
 687 static void
 688 eth_ark_dev_close(struct rte_eth_dev *dev)
 689 {
 690         struct ark_adapter *ark =
 691                 (struct ark_adapter *)dev->data->dev_private;
 692         uint16_t i;
 693
 694         if (ark->user_ext.dev_close)
 695                 ark->user_ext.dev_close(dev,
 696                  ark->user_data[dev->data->port_id]);
 697
 698         eth_ark_dev_stop(dev);
 699         eth_ark_udm_force_close(dev);
 700
 701         /*
 702          * TODO This should only be called once for the device during shutdown
 703          */
 704         ark_rqp_dump(ark->rqpacing);
 705
 706         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 707                 eth_ark_tx_queue_release(dev->data->tx_queues[i]);
 708                 dev->data->tx_queues[i] = 0;
 709         }
 710
 711         for (i = 0; i < dev->data->nb_rx_queues; i++) {
 712                 eth_ark_dev_rx_queue_release(dev->data->rx_queues[i]);
 713                 dev->data->rx_queues[i] = 0;
 714         }
 715 }
 716
 717 static void
 718 eth_ark_dev_info_get(struct rte_eth_dev *dev,
 719                      struct rte_eth_dev_info *dev_info)
 720 {
 721         struct ark_adapter *ark =
 722                 (struct ark_adapter *)dev->data->dev_private;
 723         struct ark_mpu_t *tx_mpu = RTE_PTR_ADD(ark->bar0, ARK_MPU_TX_BASE);
 724         struct ark_mpu_t *rx_mpu = RTE_PTR_ADD(ark->bar0, ARK_MPU_RX_BASE);
 725         uint16_t ports = ark->num_ports;
 726
 727         dev_info->max_rx_pktlen = ARK_RX_MAX_PKT_LEN;
 728         dev_info->min_rx_bufsize = ARK_RX_MIN_BUFSIZE;
 729
 730         dev_info->max_rx_queues = ark_api_num_queues_per_port(rx_mpu, ports);
 731         dev_info->max_tx_queues = ark_api_num_queues_per_port(tx_mpu, ports);
 732
 733         dev_info->rx_desc_lim = (struct rte_eth_desc_lim) {
 734                 .nb_max = ARK_RX_MAX_QUEUE,
 735                 .nb_min = ARK_RX_MIN_QUEUE,
 736                 .nb_align = ARK_RX_MIN_QUEUE}; /* power of 2 */
 737
 738         dev_info->tx_desc_lim = (struct rte_eth_desc_lim) {
 739                 .nb_max = ARK_TX_MAX_QUEUE,
 740                 .nb_min = ARK_TX_MIN_QUEUE,
 741                 .nb_align = ARK_TX_MIN_QUEUE}; /* power of 2 */
 742
 743         /* ARK PMD supports all line rates, how do we indicate that here ?? */
 744         dev_info->speed_capa = (ETH_LINK_SPEED_1G |
 745                                 ETH_LINK_SPEED_10G |
 746                                 ETH_LINK_SPEED_25G |
 747                                 ETH_LINK_SPEED_40G |
 748                                 ETH_LINK_SPEED_50G |
 749                                 ETH_LINK_SPEED_100G);
 750 }
 751
 752 static int
 753 eth_ark_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 754 {
 755         PMD_DEBUG_LOG(DEBUG, "link status = %d\n",
 756                         dev->data->dev_link.link_status);
 757         struct ark_adapter *ark =
 758                 (struct ark_adapter *)dev->data->dev_private;
 759
 760         if (ark->user_ext.link_update) {
 761                 return ark->user_ext.link_update
 762                         (dev, wait_to_complete,
 763                          ark->user_data[dev->data->port_id]);
 764         }
 765         return 0;
 766 }
 767
 768 static int
 769 eth_ark_dev_set_link_up(struct rte_eth_dev *dev)
 770 {
 771         dev->data->dev_link.link_status = 1;
 772         struct ark_adapter *ark =
 773                 (struct ark_adapter *)dev->data->dev_private;
 774
 775         if (ark->user_ext.dev_set_link_up)
 776                 return ark->user_ext.dev_set_link_up(dev,
 777                              ark->user_data[dev->data->port_id]);
 778         return 0;
 779 }
 780
 781 static int
 782 eth_ark_dev_set_link_down(struct rte_eth_dev *dev)
 783 {
 784         dev->data->dev_link.link_status = 0;
 785         struct ark_adapter *ark =
 786                 (struct ark_adapter *)dev->data->dev_private;
 787
 788         if (ark->user_ext.dev_set_link_down)
 789                 return ark->user_ext.dev_set_link_down(dev,
 790                        ark->user_data[dev->data->port_id]);
 791         return 0;
 792 }
 793
 794 static int
 795 eth_ark_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 796 {
 797         uint16_t i;
 798         struct ark_adapter *ark =
 799                 (struct ark_adapter *)dev->data->dev_private;
 800
 801         stats->ipackets = 0;
 802         stats->ibytes = 0;
 803         stats->opackets = 0;
 804         stats->obytes = 0;
 805         stats->imissed = 0;
 806         stats->oerrors = 0;
 807
 808         for (i = 0; i < dev->data->nb_tx_queues; i++)
 809                 eth_tx_queue_stats_get(dev->data->tx_queues[i], stats);
 810         for (i = 0; i < dev->data->nb_rx_queues; i++)
 811                 eth_rx_queue_stats_get(dev->data->rx_queues[i], stats);
 812         if (ark->user_ext.stats_get)
 813                 return ark->user_ext.stats_get(dev, stats,
 814                         ark->user_data[dev->data->port_id]);
 815         return 0;
 816 }
 817
 818 static void
 819 eth_ark_dev_stats_reset(struct rte_eth_dev *dev)
 820 {
 821         uint16_t i;
 822         struct ark_adapter *ark =
 823                 (struct ark_adapter *)dev->data->dev_private;
 824
 825         for (i = 0; i < dev->data->nb_tx_queues; i++)
 826                 eth_tx_queue_stats_reset(dev->data->tx_queues[i]);
 827         for (i = 0; i < dev->data->nb_rx_queues; i++)
 828                 eth_rx_queue_stats_reset(dev->data->rx_queues[i]);
 829         if (ark->user_ext.stats_reset)
 830                 ark->user_ext.stats_reset(dev,
 831                           ark->user_data[dev->data->port_id]);
 832 }
 833
 834 static int
 835 eth_ark_macaddr_add(struct rte_eth_dev *dev,
 836                     struct rte_ether_addr *mac_addr,
 837                     uint32_t index,
 838                     uint32_t pool)
 839 {
 840         struct ark_adapter *ark =
 841                 (struct ark_adapter *)dev->data->dev_private;
 842
 843         if (ark->user_ext.mac_addr_add) {
 844                 ark->user_ext.mac_addr_add(dev,
 845                                            mac_addr,
 846                                            index,
 847                                            pool,
 848                            ark->user_data[dev->data->port_id]);
 849                 return 0;
 850         }
 851         return -ENOTSUP;
 852 }
 853
 854 static void
 855 eth_ark_macaddr_remove(struct rte_eth_dev *dev, uint32_t index)
 856 {
 857         struct ark_adapter *ark =
 858                 (struct ark_adapter *)dev->data->dev_private;
 859
 860         if (ark->user_ext.mac_addr_remove)
 861                 ark->user_ext.mac_addr_remove(dev, index,
 862                               ark->user_data[dev->data->port_id]);
 863 }
 864
 865 static int
 866 eth_ark_set_default_mac_addr(struct rte_eth_dev *dev,
 867                              struct rte_ether_addr *mac_addr)
 868 {
 869         struct ark_adapter *ark =
 870                 (struct ark_adapter *)dev->data->dev_private;
 871
 872         if (ark->user_ext.mac_addr_set) {
 873                 ark->user_ext.mac_addr_set(dev, mac_addr,
 874                            ark->user_data[dev->data->port_id]);
 875                 return 0;
 876         }
 877         return -ENOTSUP;
 878 }
 879
 880 static int
 881 eth_ark_set_mtu(struct rte_eth_dev *dev, uint16_t  size)
 882 {
 883         struct ark_adapter *ark =
 884                 (struct ark_adapter *)dev->data->dev_private;
 885
 886         if (ark->user_ext.set_mtu)
 887                 return ark->user_ext.set_mtu(dev, size,
 888                              ark->user_data[dev->data->port_id]);
 889
 890         return -ENOTSUP;
 891 }
 892
 893 static inline int
 894 process_pktdir_arg(const char *key, const char *value,
 895                    void *extra_args)
 896 {
 897         PMD_FUNC_LOG(DEBUG, "key = %s, value = %s\n",
 898                     key, value);
 899         struct ark_adapter *ark =
 900                 (struct ark_adapter *)extra_args;
 901
 902         ark->pkt_dir_v = strtol(value, NULL, 16);
 903         PMD_FUNC_LOG(DEBUG, "pkt_dir_v = 0x%x\n", ark->pkt_dir_v);
 904         return 0;
 905 }
 906
 907 static inline int
 908 process_file_args(const char *key, const char *value, void *extra_args)
 909 {
 910         PMD_FUNC_LOG(DEBUG, "key = %s, value = %s\n",
 911                     key, value);
 912         char *args = (char *)extra_args;
 913
 914         /* Open the configuration file */
 915         FILE *file = fopen(value, "r");
 916         char line[ARK_MAX_ARG_LEN];
 917         int  size = 0;
 918         int first = 1;
 919
 920         if (file == NULL) {
 921                 PMD_DRV_LOG(ERR, "Unable to open "
 922                             "config file %s\n", value);
 923                 return -1;
 924         }
 925
 926         while (fgets(line, sizeof(line), file)) {
 927                 size += strlen(line);
 928                 if (size >= ARK_MAX_ARG_LEN) {
 929                         PMD_DRV_LOG(ERR, "Unable to parse file %s args, "
 930                                     "parameter list is too long\n", value);
 931                         fclose(file);
 932                         return -1;
 933                 }
 934                 if (first) {
 935                         strncpy(args, line, ARK_MAX_ARG_LEN);
 936                         first = 0;
 937                 } else {
 938                         strncat(args, line, ARK_MAX_ARG_LEN);
 939                 }
 940         }
 941         PMD_FUNC_LOG(DEBUG, "file = %s\n", args);
 942         fclose(file);
 943         return 0;
 944 }
 945
 946 static int
 947 eth_ark_check_args(struct ark_adapter *ark, const char *params)
 948 {
 949         struct rte_kvargs *kvlist;
 950         unsigned int k_idx;
 951         struct rte_kvargs_pair *pair = NULL;
 952         int ret = -1;
 953
 954         kvlist = rte_kvargs_parse(params, valid_arguments);
 955         if (kvlist == NULL)
 956                 return 0;
 957
 958         ark->pkt_gen_args[0] = 0;
 959         ark->pkt_chkr_args[0] = 0;
 960
 961         for (k_idx = 0; k_idx < kvlist->count; k_idx++) {
 962                 pair = &kvlist->pairs[k_idx];
 963                 PMD_FUNC_LOG(DEBUG, "**** Arg passed to PMD = %s:%s\n",
 964                              pair->key,
 965                              pair->value);
 966         }
 967
 968         if (rte_kvargs_process(kvlist,
 969                                ARK_PKTDIR_ARG,
 970                                &process_pktdir_arg,
 971                                ark) != 0) {
 972                 PMD_DRV_LOG(ERR, "Unable to parse arg %s\n", ARK_PKTDIR_ARG);
 973                 goto free_kvlist;
 974         }
 975
 976         if (rte_kvargs_process(kvlist,
 977                                ARK_PKTGEN_ARG,
 978                                &process_file_args,
 979                                ark->pkt_gen_args) != 0) {
 980                 PMD_DRV_LOG(ERR, "Unable to parse arg %s\n", ARK_PKTGEN_ARG);
 981                 goto free_kvlist;
 982         }
 983
 984         if (rte_kvargs_process(kvlist,
 985                                ARK_PKTCHKR_ARG,
 986                                &process_file_args,
 987                                ark->pkt_chkr_args) != 0) {
 988                 PMD_DRV_LOG(ERR, "Unable to parse arg %s\n", ARK_PKTCHKR_ARG);
 989                 goto free_kvlist;
 990         }
 991
 992         PMD_DRV_LOG(INFO, "packet director set to 0x%x\n", ark->pkt_dir_v);
 993         /* Setup the packet director */
 994         ark_pktdir_setup(ark->pd, ark->pkt_dir_v);
 995
 996         /* Setup the packet generator */
 997         if (ark->pkt_gen_args[0]) {
 998                 PMD_DRV_LOG(INFO, "Setting up the packet generator\n");
 999                 ark_pktgen_parse(ark->pkt_gen_args);
1000                 ark_pktgen_reset(ark->pg);
1001                 ark_pktgen_setup(ark->pg);
1002                 ark->start_pg = 1;
1003         }
1004
1005         /* Setup the packet checker */
1006         if (ark->pkt_chkr_args[0]) {
1007                 ark_pktchkr_parse(ark->pkt_chkr_args);
1008                 ark_pktchkr_setup(ark->pc);
1009         }
1010
1011         ret = 0;
1012
1013 free_kvlist:
1014         rte_kvargs_free(kvlist);
1015
1016         return ret;
1017 }
1018
1019 RTE_PMD_REGISTER_PCI(net_ark, rte_ark_pmd);
1020 RTE_PMD_REGISTER_KMOD_DEP(net_ark, "* igb_uio | uio_pci_generic ");
1021 RTE_PMD_REGISTER_PCI_TABLE(net_ark, pci_id_ark_map);
1022 RTE_PMD_REGISTER_PARAM_STRING(net_ark,
1023                               ARK_PKTGEN_ARG "=<filename> "
1024                               ARK_PKTCHKR_ARG "=<filename> "
1025                               ARK_PKTDIR_ARG "=<bitmap>");