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 = dev->data->dev_private;
 245         struct rte_pci_device *pci_dev;
 246         int ret;
 247         int port_count = 1;
 248         int p;
 249
 250         ark->eth_dev = dev;
 251
 252         PMD_FUNC_LOG(DEBUG, "\n");
 253
 254         /* Check to see if there is an extension that we need to load */
 255         ret = check_for_ext(ark);
 256         if (ret)
 257                 return ret;
 258         pci_dev = RTE_ETH_DEV_TO_PCI(dev);
 259         rte_eth_copy_pci_info(dev, pci_dev);
 260
 261         /* Use dummy function until setup */
 262         dev->rx_pkt_burst = &eth_ark_recv_pkts_noop;
 263         dev->tx_pkt_burst = &eth_ark_xmit_pkts_noop;
 264
 265         ark->bar0 = (uint8_t *)pci_dev->mem_resource[0].addr;
 266         ark->a_bar = (uint8_t *)pci_dev->mem_resource[2].addr;
 267
 268         ark->sysctrl.v  = (void *)&ark->bar0[ARK_SYSCTRL_BASE];
 269         ark->mpurx.v  = (void *)&ark->bar0[ARK_MPU_RX_BASE];
 270         ark->udm.v  = (void *)&ark->bar0[ARK_UDM_BASE];
 271         ark->mputx.v  = (void *)&ark->bar0[ARK_MPU_TX_BASE];
 272         ark->ddm.v  = (void *)&ark->bar0[ARK_DDM_BASE];
 273         ark->cmac.v  = (void *)&ark->bar0[ARK_CMAC_BASE];
 274         ark->external.v  = (void *)&ark->bar0[ARK_EXTERNAL_BASE];
 275         ark->pktdir.v  = (void *)&ark->bar0[ARK_PKTDIR_BASE];
 276         ark->pktgen.v  = (void *)&ark->bar0[ARK_PKTGEN_BASE];
 277         ark->pktchkr.v  = (void *)&ark->bar0[ARK_PKTCHKR_BASE];
 278
 279         ark->rqpacing =
 280                 (struct ark_rqpace_t *)(ark->bar0 + ARK_RCPACING_BASE);
 281         ark->started = 0;
 282
 283         PMD_DEBUG_LOG(INFO, "Sys Ctrl Const = 0x%x  HW Commit_ID: %08x\n",
 284                       ark->sysctrl.t32[4],
 285                       rte_be_to_cpu_32(ark->sysctrl.t32[0x20 / 4]));
 286         PMD_DRV_LOG(INFO, "Arkville HW Commit_ID: %08x\n",
 287                     rte_be_to_cpu_32(ark->sysctrl.t32[0x20 / 4]));
 288
 289         /* If HW sanity test fails, return an error */
 290         if (ark->sysctrl.t32[4] != 0xcafef00d) {
 291                 PMD_DRV_LOG(ERR,
 292                             "HW Sanity test has failed, expected constant"
 293                             " 0x%x, read 0x%x (%s)\n",
 294                             0xcafef00d,
 295                             ark->sysctrl.t32[4], __func__);
 296                 return -1;
 297         }
 298         if (ark->sysctrl.t32[3] != 0) {
 299                 if (ark_rqp_lasped(ark->rqpacing)) {
 300                         PMD_DRV_LOG(ERR, "Arkville Evaluation System - "
 301                                     "Timer has Expired\n");
 302                         return -1;
 303                 }
 304                 PMD_DRV_LOG(WARNING, "Arkville Evaluation System - "
 305                             "Timer is Running\n");
 306         }
 307
 308         PMD_DRV_LOG(INFO,
 309                     "HW Sanity test has PASSED, expected constant"
 310                     " 0x%x, read 0x%x (%s)\n",
 311                     0xcafef00d, ark->sysctrl.t32[4], __func__);
 312
 313         /* We are a single function multi-port device. */
 314         ret = ark_config_device(dev);
 315         if (ret)
 316                 return -1;
 317
 318         dev->dev_ops = &ark_eth_dev_ops;
 319
 320         dev->data->mac_addrs = rte_zmalloc("ark", RTE_ETHER_ADDR_LEN, 0);
 321         if (!dev->data->mac_addrs) {
 322                 PMD_DRV_LOG(ERR,
 323                             "Failed to allocated memory for storing mac address"
 324                             );
 325         }
 326
 327         if (ark->user_ext.dev_init) {
 328                 ark->user_data[dev->data->port_id] =
 329                         ark->user_ext.dev_init(dev, ark->a_bar, 0);
 330                 if (!ark->user_data[dev->data->port_id]) {
 331                         PMD_DRV_LOG(INFO,
 332                                     "Failed to initialize PMD extension!"
 333                                     " continuing without it\n");
 334                         memset(&ark->user_ext, 0, sizeof(struct ark_user_ext));
 335                         dlclose(ark->d_handle);
 336                 }
 337         }
 338
 339         if (pci_dev->device.devargs)
 340                 ret = eth_ark_check_args(ark, pci_dev->device.devargs->args);
 341         else
 342                 PMD_DRV_LOG(INFO, "No Device args found\n");
 343
 344         if (ret)
 345                 goto error;
 346         /*
 347          * We will create additional devices based on the number of requested
 348          * ports
 349          */
 350         if (ark->user_ext.dev_get_port_count)
 351                 port_count =
 352                         ark->user_ext.dev_get_port_count(dev,
 353                                  ark->user_data[dev->data->port_id]);
 354         ark->num_ports = port_count;
 355
 356         for (p = 0; p < port_count; p++) {
 357                 struct rte_eth_dev *eth_dev;
 358                 char name[RTE_ETH_NAME_MAX_LEN];
 359
 360                 snprintf(name, sizeof(name), "arketh%d",
 361                          dev->data->port_id + p);
 362
 363                 if (p == 0) {
 364                         /* First port is already allocated by DPDK */
 365                         eth_dev = ark->eth_dev;
 366                         rte_eth_dev_probing_finish(eth_dev);
 367                         continue;
 368                 }
 369
 370                 /* reserve an ethdev entry */
 371                 eth_dev = rte_eth_dev_allocate(name);
 372                 if (!eth_dev) {
 373                         PMD_DRV_LOG(ERR,
 374                                     "Could not allocate eth_dev for port %d\n",
 375                                     p);
 376                         goto error;
 377                 }
 378
 379                 eth_dev->device = &pci_dev->device;
 380                 eth_dev->data->dev_private = ark;
 381                 eth_dev->dev_ops = ark->eth_dev->dev_ops;
 382                 eth_dev->tx_pkt_burst = ark->eth_dev->tx_pkt_burst;
 383                 eth_dev->rx_pkt_burst = ark->eth_dev->rx_pkt_burst;
 384
 385                 rte_eth_copy_pci_info(eth_dev, pci_dev);
 386
 387                 eth_dev->data->mac_addrs = rte_zmalloc(name,
 388                                                 RTE_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         rte_free(dev->data->mac_addrs);
 408         dev->data->mac_addrs = NULL;
 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 = dev->data->dev_private;
 421         uint16_t num_q, i;
 422         struct ark_mpu_t *mpu;
 423
 424         /*
 425          * Make sure that the packet director, generator and checker are in a
 426          * known state
 427          */
 428         ark->start_pg = 0;
 429         ark->pg = ark_pktgen_init(ark->pktgen.v, 0, 1);
 430         if (ark->pg == NULL)
 431                 return -1;
 432         ark_pktgen_reset(ark->pg);
 433         ark->pc = ark_pktchkr_init(ark->pktchkr.v, 0, 1);
 434         if (ark->pc == NULL)
 435                 return -1;
 436         ark_pktchkr_stop(ark->pc);
 437         ark->pd = ark_pktdir_init(ark->pktdir.v);
 438         if (ark->pd == NULL)
 439                 return -1;
 440
 441         /* Verify HW */
 442         if (ark_udm_verify(ark->udm.v))
 443                 return -1;
 444         if (ark_ddm_verify(ark->ddm.v))
 445                 return -1;
 446
 447         /* UDM */
 448         if (ark_udm_reset(ark->udm.v)) {
 449                 PMD_DRV_LOG(ERR, "Unable to stop and reset UDM\n");
 450                 return -1;
 451         }
 452         /* Keep in reset until the MPU are cleared */
 453
 454         /* MPU reset */
 455         mpu = ark->mpurx.v;
 456         num_q = ark_api_num_queues(mpu);
 457         ark->rx_queues = num_q;
 458         for (i = 0; i < num_q; i++) {
 459                 ark_mpu_reset(mpu);
 460                 mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 461         }
 462
 463         ark_udm_stop(ark->udm.v, 0);
 464         ark_udm_configure(ark->udm.v,
 465                           RTE_PKTMBUF_HEADROOM,
 466                           RTE_MBUF_DEFAULT_DATAROOM,
 467                           ARK_RX_WRITE_TIME_NS);
 468         ark_udm_stats_reset(ark->udm.v);
 469         ark_udm_stop(ark->udm.v, 0);
 470
 471         /* TX -- DDM */
 472         if (ark_ddm_stop(ark->ddm.v, 1))
 473                 PMD_DRV_LOG(ERR, "Unable to stop DDM\n");
 474
 475         mpu = ark->mputx.v;
 476         num_q = ark_api_num_queues(mpu);
 477         ark->tx_queues = num_q;
 478         for (i = 0; i < num_q; i++) {
 479                 ark_mpu_reset(mpu);
 480                 mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 481         }
 482
 483         ark_ddm_reset(ark->ddm.v);
 484         ark_ddm_stats_reset(ark->ddm.v);
 485
 486         ark_ddm_stop(ark->ddm.v, 0);
 487         ark_rqp_stats_reset(ark->rqpacing);
 488
 489         return 0;
 490 }
 491
 492 static int
 493 eth_ark_dev_uninit(struct rte_eth_dev *dev)
 494 {
 495         struct ark_adapter *ark = dev->data->dev_private;
 496
 497         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 498                 return 0;
 499
 500         if (ark->user_ext.dev_uninit)
 501                 ark->user_ext.dev_uninit(dev,
 502                          ark->user_data[dev->data->port_id]);
 503
 504         ark_pktgen_uninit(ark->pg);
 505         ark_pktchkr_uninit(ark->pc);
 506
 507         dev->dev_ops = NULL;
 508         dev->rx_pkt_burst = NULL;
 509         dev->tx_pkt_burst = NULL;
 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 = dev->data->dev_private;
 518
 519         eth_ark_dev_set_link_up(dev);
 520         if (ark->user_ext.dev_configure)
 521                 return ark->user_ext.dev_configure(dev,
 522                            ark->user_data[dev->data->port_id]);
 523         return 0;
 524 }
 525
 526 static void *
 527 delay_pg_start(void *arg)
 528 {
 529         struct ark_adapter *ark = (struct ark_adapter *)arg;
 530
 531         /* This function is used exclusively for regression testing, We
 532          * perform a blind sleep here to ensure that the external test
 533          * application has time to setup the test before we generate packets
 534          */
 535         usleep(100000);
 536         ark_pktgen_run(ark->pg);
 537         return NULL;
 538 }
 539
 540 static int
 541 eth_ark_dev_start(struct rte_eth_dev *dev)
 542 {
 543         struct ark_adapter *ark = dev->data->dev_private;
 544         int i;
 545
 546         PMD_FUNC_LOG(DEBUG, "\n");
 547
 548         /* RX Side */
 549         /* start UDM */
 550         ark_udm_start(ark->udm.v);
 551
 552         for (i = 0; i < dev->data->nb_rx_queues; i++)
 553                 eth_ark_rx_start_queue(dev, i);
 554
 555         /* TX Side */
 556         for (i = 0; i < dev->data->nb_tx_queues; i++)
 557                 eth_ark_tx_queue_start(dev, i);
 558
 559         /* start DDM */
 560         ark_ddm_start(ark->ddm.v);
 561
 562         ark->started = 1;
 563         /* set xmit and receive function */
 564         dev->rx_pkt_burst = &eth_ark_recv_pkts;
 565         dev->tx_pkt_burst = &eth_ark_xmit_pkts;
 566
 567         if (ark->start_pg)
 568                 ark_pktchkr_run(ark->pc);
 569
 570         if (ark->start_pg && (dev->data->port_id == 0)) {
 571                 pthread_t thread;
 572
 573                 /* Delay packet generatpr start allow the hardware to be ready
 574                  * This is only used for sanity checking with internal generator
 575                  */
 576                 if (pthread_create(&thread, NULL, delay_pg_start, ark)) {
 577                         PMD_DRV_LOG(ERR, "Could not create pktgen "
 578                                     "starter thread\n");
 579                         return -1;
 580                 }
 581         }
 582
 583         if (ark->user_ext.dev_start)
 584                 ark->user_ext.dev_start(dev,
 585                         ark->user_data[dev->data->port_id]);
 586
 587         return 0;
 588 }
 589
 590 static void
 591 eth_ark_dev_stop(struct rte_eth_dev *dev)
 592 {
 593         uint16_t i;
 594         int status;
 595         struct ark_adapter *ark = dev->data->dev_private;
 596         struct ark_mpu_t *mpu;
 597
 598         PMD_FUNC_LOG(DEBUG, "\n");
 599
 600         if (ark->started == 0)
 601                 return;
 602         ark->started = 0;
 603
 604         /* Stop the extension first */
 605         if (ark->user_ext.dev_stop)
 606                 ark->user_ext.dev_stop(dev,
 607                        ark->user_data[dev->data->port_id]);
 608
 609         /* Stop the packet generator */
 610         if (ark->start_pg)
 611                 ark_pktgen_pause(ark->pg);
 612
 613         dev->rx_pkt_burst = &eth_ark_recv_pkts_noop;
 614         dev->tx_pkt_burst = &eth_ark_xmit_pkts_noop;
 615
 616         /* STOP TX Side */
 617         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 618                 status = eth_ark_tx_queue_stop(dev, i);
 619                 if (status != 0) {
 620                         uint16_t port = dev->data->port_id;
 621                         PMD_DRV_LOG(ERR,
 622                                     "tx_queue stop anomaly"
 623                                     " port %u, queue %u\n",
 624                                     port, i);
 625                 }
 626         }
 627
 628         /* Stop DDM */
 629         /* Wait up to 0.1 second.  each stop is up to 1000 * 10 useconds */
 630         for (i = 0; i < 10; i++) {
 631                 status = ark_ddm_stop(ark->ddm.v, 1);
 632                 if (status == 0)
 633                         break;
 634         }
 635         if (status || i != 0) {
 636                 PMD_DRV_LOG(ERR, "DDM stop anomaly. status:"
 637                             " %d iter: %u. (%s)\n",
 638                             status,
 639                             i,
 640                             __func__);
 641                 ark_ddm_dump(ark->ddm.v, "Stop anomaly");
 642
 643                 mpu = ark->mputx.v;
 644                 for (i = 0; i < ark->tx_queues; i++) {
 645                         ark_mpu_dump(mpu, "DDM failure dump", i);
 646                         mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 647                 }
 648         }
 649
 650         /* STOP RX Side */
 651         /* Stop UDM  multiple tries attempted */
 652         for (i = 0; i < 10; i++) {
 653                 status = ark_udm_stop(ark->udm.v, 1);
 654                 if (status == 0)
 655                         break;
 656         }
 657         if (status || i != 0) {
 658                 PMD_DRV_LOG(ERR, "UDM stop anomaly. status %d iter: %u. (%s)\n",
 659                             status, i, __func__);
 660                 ark_udm_dump(ark->udm.v, "Stop anomaly");
 661
 662                 mpu = ark->mpurx.v;
 663                 for (i = 0; i < ark->rx_queues; i++) {
 664                         ark_mpu_dump(mpu, "UDM Stop anomaly", i);
 665                         mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 666                 }
 667         }
 668
 669         ark_udm_dump_stats(ark->udm.v, "Post stop");
 670         ark_udm_dump_perf(ark->udm.v, "Post stop");
 671
 672         for (i = 0; i < dev->data->nb_rx_queues; i++)
 673                 eth_ark_rx_dump_queue(dev, i, __func__);
 674
 675         /* Stop the packet checker if it is running */
 676         if (ark->start_pg) {
 677                 ark_pktchkr_dump_stats(ark->pc);
 678                 ark_pktchkr_stop(ark->pc);
 679         }
 680 }
 681
 682 static void
 683 eth_ark_dev_close(struct rte_eth_dev *dev)
 684 {
 685         struct ark_adapter *ark = dev->data->dev_private;
 686         uint16_t i;
 687
 688         if (ark->user_ext.dev_close)
 689                 ark->user_ext.dev_close(dev,
 690                  ark->user_data[dev->data->port_id]);
 691
 692         eth_ark_dev_stop(dev);
 693         eth_ark_udm_force_close(dev);
 694
 695         /*
 696          * TODO This should only be called once for the device during shutdown
 697          */
 698         ark_rqp_dump(ark->rqpacing);
 699
 700         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 701                 eth_ark_tx_queue_release(dev->data->tx_queues[i]);
 702                 dev->data->tx_queues[i] = 0;
 703         }
 704
 705         for (i = 0; i < dev->data->nb_rx_queues; i++) {
 706                 eth_ark_dev_rx_queue_release(dev->data->rx_queues[i]);
 707                 dev->data->rx_queues[i] = 0;
 708         }
 709 }
 710
 711 static void
 712 eth_ark_dev_info_get(struct rte_eth_dev *dev,
 713                      struct rte_eth_dev_info *dev_info)
 714 {
 715         struct ark_adapter *ark = dev->data->dev_private;
 716         struct ark_mpu_t *tx_mpu = RTE_PTR_ADD(ark->bar0, ARK_MPU_TX_BASE);
 717         struct ark_mpu_t *rx_mpu = RTE_PTR_ADD(ark->bar0, ARK_MPU_RX_BASE);
 718         uint16_t ports = ark->num_ports;
 719
 720         dev_info->max_rx_pktlen = ARK_RX_MAX_PKT_LEN;
 721         dev_info->min_rx_bufsize = ARK_RX_MIN_BUFSIZE;
 722
 723         dev_info->max_rx_queues = ark_api_num_queues_per_port(rx_mpu, ports);
 724         dev_info->max_tx_queues = ark_api_num_queues_per_port(tx_mpu, ports);
 725
 726         dev_info->rx_desc_lim = (struct rte_eth_desc_lim) {
 727                 .nb_max = ARK_RX_MAX_QUEUE,
 728                 .nb_min = ARK_RX_MIN_QUEUE,
 729                 .nb_align = ARK_RX_MIN_QUEUE}; /* power of 2 */
 730
 731         dev_info->tx_desc_lim = (struct rte_eth_desc_lim) {
 732                 .nb_max = ARK_TX_MAX_QUEUE,
 733                 .nb_min = ARK_TX_MIN_QUEUE,
 734                 .nb_align = ARK_TX_MIN_QUEUE}; /* power of 2 */
 735
 736         /* ARK PMD supports all line rates, how do we indicate that here ?? */
 737         dev_info->speed_capa = (ETH_LINK_SPEED_1G |
 738                                 ETH_LINK_SPEED_10G |
 739                                 ETH_LINK_SPEED_25G |
 740                                 ETH_LINK_SPEED_40G |
 741                                 ETH_LINK_SPEED_50G |
 742                                 ETH_LINK_SPEED_100G);
 743 }
 744
 745 static int
 746 eth_ark_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 747 {
 748         PMD_DEBUG_LOG(DEBUG, "link status = %d\n",
 749                         dev->data->dev_link.link_status);
 750         struct ark_adapter *ark = dev->data->dev_private;
 751
 752         if (ark->user_ext.link_update) {
 753                 return ark->user_ext.link_update
 754                         (dev, wait_to_complete,
 755                          ark->user_data[dev->data->port_id]);
 756         }
 757         return 0;
 758 }
 759
 760 static int
 761 eth_ark_dev_set_link_up(struct rte_eth_dev *dev)
 762 {
 763         dev->data->dev_link.link_status = 1;
 764         struct ark_adapter *ark = dev->data->dev_private;
 765
 766         if (ark->user_ext.dev_set_link_up)
 767                 return ark->user_ext.dev_set_link_up(dev,
 768                              ark->user_data[dev->data->port_id]);
 769         return 0;
 770 }
 771
 772 static int
 773 eth_ark_dev_set_link_down(struct rte_eth_dev *dev)
 774 {
 775         dev->data->dev_link.link_status = 0;
 776         struct ark_adapter *ark = dev->data->dev_private;
 777
 778         if (ark->user_ext.dev_set_link_down)
 779                 return ark->user_ext.dev_set_link_down(dev,
 780                        ark->user_data[dev->data->port_id]);
 781         return 0;
 782 }
 783
 784 static int
 785 eth_ark_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 786 {
 787         uint16_t i;
 788         struct ark_adapter *ark = dev->data->dev_private;
 789
 790         stats->ipackets = 0;
 791         stats->ibytes = 0;
 792         stats->opackets = 0;
 793         stats->obytes = 0;
 794         stats->imissed = 0;
 795         stats->oerrors = 0;
 796
 797         for (i = 0; i < dev->data->nb_tx_queues; i++)
 798                 eth_tx_queue_stats_get(dev->data->tx_queues[i], stats);
 799         for (i = 0; i < dev->data->nb_rx_queues; i++)
 800                 eth_rx_queue_stats_get(dev->data->rx_queues[i], stats);
 801         if (ark->user_ext.stats_get)
 802                 return ark->user_ext.stats_get(dev, stats,
 803                         ark->user_data[dev->data->port_id]);
 804         return 0;
 805 }
 806
 807 static void
 808 eth_ark_dev_stats_reset(struct rte_eth_dev *dev)
 809 {
 810         uint16_t i;
 811         struct ark_adapter *ark = dev->data->dev_private;
 812
 813         for (i = 0; i < dev->data->nb_tx_queues; i++)
 814                 eth_tx_queue_stats_reset(dev->data->tx_queues[i]);
 815         for (i = 0; i < dev->data->nb_rx_queues; i++)
 816                 eth_rx_queue_stats_reset(dev->data->rx_queues[i]);
 817         if (ark->user_ext.stats_reset)
 818                 ark->user_ext.stats_reset(dev,
 819                           ark->user_data[dev->data->port_id]);
 820 }
 821
 822 static int
 823 eth_ark_macaddr_add(struct rte_eth_dev *dev,
 824                     struct rte_ether_addr *mac_addr,
 825                     uint32_t index,
 826                     uint32_t pool)
 827 {
 828         struct ark_adapter *ark = dev->data->dev_private;
 829
 830         if (ark->user_ext.mac_addr_add) {
 831                 ark->user_ext.mac_addr_add(dev,
 832                                            mac_addr,
 833                                            index,
 834                                            pool,
 835                            ark->user_data[dev->data->port_id]);
 836                 return 0;
 837         }
 838         return -ENOTSUP;
 839 }
 840
 841 static void
 842 eth_ark_macaddr_remove(struct rte_eth_dev *dev, uint32_t index)
 843 {
 844         struct ark_adapter *ark = dev->data->dev_private;
 845
 846         if (ark->user_ext.mac_addr_remove)
 847                 ark->user_ext.mac_addr_remove(dev, index,
 848                               ark->user_data[dev->data->port_id]);
 849 }
 850
 851 static int
 852 eth_ark_set_default_mac_addr(struct rte_eth_dev *dev,
 853                              struct rte_ether_addr *mac_addr)
 854 {
 855         struct ark_adapter *ark = dev->data->dev_private;
 856
 857         if (ark->user_ext.mac_addr_set) {
 858                 ark->user_ext.mac_addr_set(dev, mac_addr,
 859                            ark->user_data[dev->data->port_id]);
 860                 return 0;
 861         }
 862         return -ENOTSUP;
 863 }
 864
 865 static int
 866 eth_ark_set_mtu(struct rte_eth_dev *dev, uint16_t  size)
 867 {
 868         struct ark_adapter *ark = dev->data->dev_private;
 869
 870         if (ark->user_ext.set_mtu)
 871                 return ark->user_ext.set_mtu(dev, size,
 872                              ark->user_data[dev->data->port_id]);
 873
 874         return -ENOTSUP;
 875 }
 876
 877 static inline int
 878 process_pktdir_arg(const char *key, const char *value,
 879                    void *extra_args)
 880 {
 881         PMD_FUNC_LOG(DEBUG, "key = %s, value = %s\n",
 882                     key, value);
 883         struct ark_adapter *ark =
 884                 (struct ark_adapter *)extra_args;
 885
 886         ark->pkt_dir_v = strtol(value, NULL, 16);
 887         PMD_FUNC_LOG(DEBUG, "pkt_dir_v = 0x%x\n", ark->pkt_dir_v);
 888         return 0;
 889 }
 890
 891 static inline int
 892 process_file_args(const char *key, const char *value, void *extra_args)
 893 {
 894         PMD_FUNC_LOG(DEBUG, "key = %s, value = %s\n",
 895                     key, value);
 896         char *args = (char *)extra_args;
 897
 898         /* Open the configuration file */
 899         FILE *file = fopen(value, "r");
 900         char line[ARK_MAX_ARG_LEN];
 901         int  size = 0;
 902         int first = 1;
 903
 904         if (file == NULL) {
 905                 PMD_DRV_LOG(ERR, "Unable to open "
 906                             "config file %s\n", value);
 907                 return -1;
 908         }
 909
 910         while (fgets(line, sizeof(line), file)) {
 911                 size += strlen(line);
 912                 if (size >= ARK_MAX_ARG_LEN) {
 913                         PMD_DRV_LOG(ERR, "Unable to parse file %s args, "
 914                                     "parameter list is too long\n", value);
 915                         fclose(file);
 916                         return -1;
 917                 }
 918                 if (first) {
 919                         strncpy(args, line, ARK_MAX_ARG_LEN);
 920                         first = 0;
 921                 } else {
 922                         strncat(args, line, ARK_MAX_ARG_LEN);
 923                 }
 924         }
 925         PMD_FUNC_LOG(DEBUG, "file = %s\n", args);
 926         fclose(file);
 927         return 0;
 928 }
 929
 930 static int
 931 eth_ark_check_args(struct ark_adapter *ark, const char *params)
 932 {
 933         struct rte_kvargs *kvlist;
 934         unsigned int k_idx;
 935         struct rte_kvargs_pair *pair = NULL;
 936         int ret = -1;
 937
 938         kvlist = rte_kvargs_parse(params, valid_arguments);
 939         if (kvlist == NULL)
 940                 return 0;
 941
 942         ark->pkt_gen_args[0] = 0;
 943         ark->pkt_chkr_args[0] = 0;
 944
 945         for (k_idx = 0; k_idx < kvlist->count; k_idx++) {
 946                 pair = &kvlist->pairs[k_idx];
 947                 PMD_FUNC_LOG(DEBUG, "**** Arg passed to PMD = %s:%s\n",
 948                              pair->key,
 949                              pair->value);
 950         }
 951
 952         if (rte_kvargs_process(kvlist,
 953                                ARK_PKTDIR_ARG,
 954                                &process_pktdir_arg,
 955                                ark) != 0) {
 956                 PMD_DRV_LOG(ERR, "Unable to parse arg %s\n", ARK_PKTDIR_ARG);
 957                 goto free_kvlist;
 958         }
 959
 960         if (rte_kvargs_process(kvlist,
 961                                ARK_PKTGEN_ARG,
 962                                &process_file_args,
 963                                ark->pkt_gen_args) != 0) {
 964                 PMD_DRV_LOG(ERR, "Unable to parse arg %s\n", ARK_PKTGEN_ARG);
 965                 goto free_kvlist;
 966         }
 967
 968         if (rte_kvargs_process(kvlist,
 969                                ARK_PKTCHKR_ARG,
 970                                &process_file_args,
 971                                ark->pkt_chkr_args) != 0) {
 972                 PMD_DRV_LOG(ERR, "Unable to parse arg %s\n", ARK_PKTCHKR_ARG);
 973                 goto free_kvlist;
 974         }
 975
 976         PMD_DRV_LOG(INFO, "packet director set to 0x%x\n", ark->pkt_dir_v);
 977         /* Setup the packet director */
 978         ark_pktdir_setup(ark->pd, ark->pkt_dir_v);
 979
 980         /* Setup the packet generator */
 981         if (ark->pkt_gen_args[0]) {
 982                 PMD_DRV_LOG(INFO, "Setting up the packet generator\n");
 983                 ark_pktgen_parse(ark->pkt_gen_args);
 984                 ark_pktgen_reset(ark->pg);
 985                 ark_pktgen_setup(ark->pg);
 986                 ark->start_pg = 1;
 987         }
 988
 989         /* Setup the packet checker */
 990         if (ark->pkt_chkr_args[0]) {
 991                 ark_pktchkr_parse(ark->pkt_chkr_args);
 992                 ark_pktchkr_setup(ark->pc);
 993         }
 994
 995         ret = 0;
 996
 997 free_kvlist:
 998         rte_kvargs_free(kvlist);
 999
1000         return ret;
1001 }
1002
1003 RTE_PMD_REGISTER_PCI(net_ark, rte_ark_pmd);
1004 RTE_PMD_REGISTER_KMOD_DEP(net_ark, "* igb_uio | uio_pci_generic ");
1005 RTE_PMD_REGISTER_PCI_TABLE(net_ark, pci_id_ark_map);
1006 RTE_PMD_REGISTER_PARAM_STRING(net_ark,
1007                               ARK_PKTGEN_ARG "=<filename> "
1008                               ARK_PKTCHKR_ARG "=<filename> "
1009                               ARK_PKTDIR_ARG "=<bitmap>");