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 int 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 int 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         /* Let rte_eth_dev_close() release the port resources */
 265         dev->data->dev_flags |= RTE_ETH_DEV_CLOSE_REMOVE;
 266
 267         ark->bar0 = (uint8_t *)pci_dev->mem_resource[0].addr;
 268         ark->a_bar = (uint8_t *)pci_dev->mem_resource[2].addr;
 269
 270         ark->sysctrl.v  = (void *)&ark->bar0[ARK_SYSCTRL_BASE];
 271         ark->mpurx.v  = (void *)&ark->bar0[ARK_MPU_RX_BASE];
 272         ark->udm.v  = (void *)&ark->bar0[ARK_UDM_BASE];
 273         ark->mputx.v  = (void *)&ark->bar0[ARK_MPU_TX_BASE];
 274         ark->ddm.v  = (void *)&ark->bar0[ARK_DDM_BASE];
 275         ark->cmac.v  = (void *)&ark->bar0[ARK_CMAC_BASE];
 276         ark->external.v  = (void *)&ark->bar0[ARK_EXTERNAL_BASE];
 277         ark->pktdir.v  = (void *)&ark->bar0[ARK_PKTDIR_BASE];
 278         ark->pktgen.v  = (void *)&ark->bar0[ARK_PKTGEN_BASE];
 279         ark->pktchkr.v  = (void *)&ark->bar0[ARK_PKTCHKR_BASE];
 280
 281         ark->rqpacing =
 282                 (struct ark_rqpace_t *)(ark->bar0 + ARK_RCPACING_BASE);
 283         ark->started = 0;
 284
 285         PMD_DEBUG_LOG(INFO, "Sys Ctrl Const = 0x%x  HW Commit_ID: %08x\n",
 286                       ark->sysctrl.t32[4],
 287                       rte_be_to_cpu_32(ark->sysctrl.t32[0x20 / 4]));
 288         PMD_DRV_LOG(INFO, "Arkville HW Commit_ID: %08x\n",
 289                     rte_be_to_cpu_32(ark->sysctrl.t32[0x20 / 4]));
 290
 291         /* If HW sanity test fails, return an error */
 292         if (ark->sysctrl.t32[4] != 0xcafef00d) {
 293                 PMD_DRV_LOG(ERR,
 294                             "HW Sanity test has failed, expected constant"
 295                             " 0x%x, read 0x%x (%s)\n",
 296                             0xcafef00d,
 297                             ark->sysctrl.t32[4], __func__);
 298                 return -1;
 299         }
 300         if (ark->sysctrl.t32[3] != 0) {
 301                 if (ark_rqp_lasped(ark->rqpacing)) {
 302                         PMD_DRV_LOG(ERR, "Arkville Evaluation System - "
 303                                     "Timer has Expired\n");
 304                         return -1;
 305                 }
 306                 PMD_DRV_LOG(WARNING, "Arkville Evaluation System - "
 307                             "Timer is Running\n");
 308         }
 309
 310         PMD_DRV_LOG(INFO,
 311                     "HW Sanity test has PASSED, expected constant"
 312                     " 0x%x, read 0x%x (%s)\n",
 313                     0xcafef00d, ark->sysctrl.t32[4], __func__);
 314
 315         /* We are a single function multi-port device. */
 316         ret = ark_config_device(dev);
 317         if (ret)
 318                 return -1;
 319
 320         dev->dev_ops = &ark_eth_dev_ops;
 321
 322         dev->data->mac_addrs = rte_zmalloc("ark", RTE_ETHER_ADDR_LEN, 0);
 323         if (!dev->data->mac_addrs) {
 324                 PMD_DRV_LOG(ERR,
 325                             "Failed to allocated memory for storing mac address"
 326                             );
 327         }
 328
 329         if (ark->user_ext.dev_init) {
 330                 ark->user_data[dev->data->port_id] =
 331                         ark->user_ext.dev_init(dev, ark->a_bar, 0);
 332                 if (!ark->user_data[dev->data->port_id]) {
 333                         PMD_DRV_LOG(INFO,
 334                                     "Failed to initialize PMD extension!"
 335                                     " continuing without it\n");
 336                         memset(&ark->user_ext, 0, sizeof(struct ark_user_ext));
 337                         dlclose(ark->d_handle);
 338                 }
 339         }
 340
 341         if (pci_dev->device.devargs)
 342                 ret = eth_ark_check_args(ark, pci_dev->device.devargs->args);
 343         else
 344                 PMD_DRV_LOG(INFO, "No Device args found\n");
 345
 346         if (ret)
 347                 goto error;
 348         /*
 349          * We will create additional devices based on the number of requested
 350          * ports
 351          */
 352         if (ark->user_ext.dev_get_port_count)
 353                 port_count =
 354                         ark->user_ext.dev_get_port_count(dev,
 355                                  ark->user_data[dev->data->port_id]);
 356         ark->num_ports = port_count;
 357
 358         for (p = 0; p < port_count; p++) {
 359                 struct rte_eth_dev *eth_dev;
 360                 char name[RTE_ETH_NAME_MAX_LEN];
 361
 362                 snprintf(name, sizeof(name), "arketh%d",
 363                          dev->data->port_id + p);
 364
 365                 if (p == 0) {
 366                         /* First port is already allocated by DPDK */
 367                         eth_dev = ark->eth_dev;
 368                         rte_eth_dev_probing_finish(eth_dev);
 369                         continue;
 370                 }
 371
 372                 /* reserve an ethdev entry */
 373                 eth_dev = rte_eth_dev_allocate(name);
 374                 if (!eth_dev) {
 375                         PMD_DRV_LOG(ERR,
 376                                     "Could not allocate eth_dev for port %d\n",
 377                                     p);
 378                         goto error;
 379                 }
 380
 381                 eth_dev->device = &pci_dev->device;
 382                 eth_dev->data->dev_private = ark;
 383                 eth_dev->dev_ops = ark->eth_dev->dev_ops;
 384                 eth_dev->tx_pkt_burst = ark->eth_dev->tx_pkt_burst;
 385                 eth_dev->rx_pkt_burst = ark->eth_dev->rx_pkt_burst;
 386
 387                 rte_eth_copy_pci_info(eth_dev, pci_dev);
 388
 389                 eth_dev->data->mac_addrs = rte_zmalloc(name,
 390                                                 RTE_ETHER_ADDR_LEN, 0);
 391                 if (!eth_dev->data->mac_addrs) {
 392                         PMD_DRV_LOG(ERR,
 393                                     "Memory allocation for MAC failed!"
 394                                     " Exiting.\n");
 395                         goto error;
 396                 }
 397
 398                 if (ark->user_ext.dev_init) {
 399                         ark->user_data[eth_dev->data->port_id] =
 400                                 ark->user_ext.dev_init(dev, ark->a_bar, p);
 401                 }
 402
 403                 rte_eth_dev_probing_finish(eth_dev);
 404         }
 405
 406         return ret;
 407
 408 error:
 409         rte_free(dev->data->mac_addrs);
 410         dev->data->mac_addrs = NULL;
 411         return -1;
 412 }
 413
 414 /*
 415  *Initial device configuration when device is opened
 416  * setup the DDM, and UDM
 417  * Called once per PCIE device
 418  */
 419 static int
 420 ark_config_device(struct rte_eth_dev *dev)
 421 {
 422         struct ark_adapter *ark = dev->data->dev_private;
 423         uint16_t num_q, i;
 424         struct ark_mpu_t *mpu;
 425
 426         /*
 427          * Make sure that the packet director, generator and checker are in a
 428          * known state
 429          */
 430         ark->start_pg = 0;
 431         ark->pg = ark_pktgen_init(ark->pktgen.v, 0, 1);
 432         if (ark->pg == NULL)
 433                 return -1;
 434         ark_pktgen_reset(ark->pg);
 435         ark->pc = ark_pktchkr_init(ark->pktchkr.v, 0, 1);
 436         if (ark->pc == NULL)
 437                 return -1;
 438         ark_pktchkr_stop(ark->pc);
 439         ark->pd = ark_pktdir_init(ark->pktdir.v);
 440         if (ark->pd == NULL)
 441                 return -1;
 442
 443         /* Verify HW */
 444         if (ark_udm_verify(ark->udm.v))
 445                 return -1;
 446         if (ark_ddm_verify(ark->ddm.v))
 447                 return -1;
 448
 449         /* UDM */
 450         if (ark_udm_reset(ark->udm.v)) {
 451                 PMD_DRV_LOG(ERR, "Unable to stop and reset UDM\n");
 452                 return -1;
 453         }
 454         /* Keep in reset until the MPU are cleared */
 455
 456         /* MPU reset */
 457         mpu = ark->mpurx.v;
 458         num_q = ark_api_num_queues(mpu);
 459         ark->rx_queues = num_q;
 460         for (i = 0; i < num_q; i++) {
 461                 ark_mpu_reset(mpu);
 462                 mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 463         }
 464
 465         ark_udm_stop(ark->udm.v, 0);
 466         ark_udm_configure(ark->udm.v,
 467                           RTE_PKTMBUF_HEADROOM,
 468                           RTE_MBUF_DEFAULT_DATAROOM,
 469                           ARK_RX_WRITE_TIME_NS);
 470         ark_udm_stats_reset(ark->udm.v);
 471         ark_udm_stop(ark->udm.v, 0);
 472
 473         /* TX -- DDM */
 474         if (ark_ddm_stop(ark->ddm.v, 1))
 475                 PMD_DRV_LOG(ERR, "Unable to stop DDM\n");
 476
 477         mpu = ark->mputx.v;
 478         num_q = ark_api_num_queues(mpu);
 479         ark->tx_queues = num_q;
 480         for (i = 0; i < num_q; i++) {
 481                 ark_mpu_reset(mpu);
 482                 mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 483         }
 484
 485         ark_ddm_reset(ark->ddm.v);
 486         ark_ddm_stats_reset(ark->ddm.v);
 487
 488         ark_ddm_stop(ark->ddm.v, 0);
 489         ark_rqp_stats_reset(ark->rqpacing);
 490
 491         return 0;
 492 }
 493
 494 static int
 495 eth_ark_dev_uninit(struct rte_eth_dev *dev)
 496 {
 497         struct ark_adapter *ark = 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 = dev->data->dev_private;
 520
 521         eth_ark_dev_set_link_up(dev);
 522         if (ark->user_ext.dev_configure)
 523                 return ark->user_ext.dev_configure(dev,
 524                            ark->user_data[dev->data->port_id]);
 525         return 0;
 526 }
 527
 528 static void *
 529 delay_pg_start(void *arg)
 530 {
 531         struct ark_adapter *ark = (struct ark_adapter *)arg;
 532
 533         /* This function is used exclusively for regression testing, We
 534          * perform a blind sleep here to ensure that the external test
 535          * application has time to setup the test before we generate packets
 536          */
 537         usleep(100000);
 538         ark_pktgen_run(ark->pg);
 539         return NULL;
 540 }
 541
 542 static int
 543 eth_ark_dev_start(struct rte_eth_dev *dev)
 544 {
 545         struct ark_adapter *ark = 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 = dev->data->dev_private;
 598         struct ark_mpu_t *mpu;
 599
 600         PMD_FUNC_LOG(DEBUG, "\n");
 601
 602         if (ark->started == 0)
 603                 return;
 604         ark->started = 0;
 605
 606         /* Stop the extension first */
 607         if (ark->user_ext.dev_stop)
 608                 ark->user_ext.dev_stop(dev,
 609                        ark->user_data[dev->data->port_id]);
 610
 611         /* Stop the packet generator */
 612         if (ark->start_pg)
 613                 ark_pktgen_pause(ark->pg);
 614
 615         dev->rx_pkt_burst = &eth_ark_recv_pkts_noop;
 616         dev->tx_pkt_burst = &eth_ark_xmit_pkts_noop;
 617
 618         /* STOP TX Side */
 619         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 620                 status = eth_ark_tx_queue_stop(dev, i);
 621                 if (status != 0) {
 622                         uint16_t port = dev->data->port_id;
 623                         PMD_DRV_LOG(ERR,
 624                                     "tx_queue stop anomaly"
 625                                     " port %u, queue %u\n",
 626                                     port, i);
 627                 }
 628         }
 629
 630         /* Stop DDM */
 631         /* Wait up to 0.1 second.  each stop is up to 1000 * 10 useconds */
 632         for (i = 0; i < 10; i++) {
 633                 status = ark_ddm_stop(ark->ddm.v, 1);
 634                 if (status == 0)
 635                         break;
 636         }
 637         if (status || i != 0) {
 638                 PMD_DRV_LOG(ERR, "DDM stop anomaly. status:"
 639                             " %d iter: %u. (%s)\n",
 640                             status,
 641                             i,
 642                             __func__);
 643                 ark_ddm_dump(ark->ddm.v, "Stop anomaly");
 644
 645                 mpu = ark->mputx.v;
 646                 for (i = 0; i < ark->tx_queues; i++) {
 647                         ark_mpu_dump(mpu, "DDM failure dump", i);
 648                         mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 649                 }
 650         }
 651
 652         /* STOP RX Side */
 653         /* Stop UDM  multiple tries attempted */
 654         for (i = 0; i < 10; i++) {
 655                 status = ark_udm_stop(ark->udm.v, 1);
 656                 if (status == 0)
 657                         break;
 658         }
 659         if (status || i != 0) {
 660                 PMD_DRV_LOG(ERR, "UDM stop anomaly. status %d iter: %u. (%s)\n",
 661                             status, i, __func__);
 662                 ark_udm_dump(ark->udm.v, "Stop anomaly");
 663
 664                 mpu = ark->mpurx.v;
 665                 for (i = 0; i < ark->rx_queues; i++) {
 666                         ark_mpu_dump(mpu, "UDM Stop anomaly", i);
 667                         mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 668                 }
 669         }
 670
 671         ark_udm_dump_stats(ark->udm.v, "Post stop");
 672         ark_udm_dump_perf(ark->udm.v, "Post stop");
 673
 674         for (i = 0; i < dev->data->nb_rx_queues; i++)
 675                 eth_ark_rx_dump_queue(dev, i, __func__);
 676
 677         /* Stop the packet checker if it is running */
 678         if (ark->start_pg) {
 679                 ark_pktchkr_dump_stats(ark->pc);
 680                 ark_pktchkr_stop(ark->pc);
 681         }
 682 }
 683
 684 static void
 685 eth_ark_dev_close(struct rte_eth_dev *dev)
 686 {
 687         struct ark_adapter *ark = dev->data->dev_private;
 688         uint16_t i;
 689
 690         if (ark->user_ext.dev_close)
 691                 ark->user_ext.dev_close(dev,
 692                  ark->user_data[dev->data->port_id]);
 693
 694         eth_ark_dev_stop(dev);
 695         eth_ark_udm_force_close(dev);
 696
 697         /*
 698          * TODO This should only be called once for the device during shutdown
 699          */
 700         ark_rqp_dump(ark->rqpacing);
 701
 702         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 703                 eth_ark_tx_queue_release(dev->data->tx_queues[i]);
 704                 dev->data->tx_queues[i] = 0;
 705         }
 706
 707         for (i = 0; i < dev->data->nb_rx_queues; i++) {
 708                 eth_ark_dev_rx_queue_release(dev->data->rx_queues[i]);
 709                 dev->data->rx_queues[i] = 0;
 710         }
 711
 712         rte_free(dev->data->mac_addrs);
 713         dev->data->mac_addrs = 0;
 714 }
 715
 716 static int
 717 eth_ark_dev_info_get(struct rte_eth_dev *dev,
 718                      struct rte_eth_dev_info *dev_info)
 719 {
 720         struct ark_adapter *ark = 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         return 0;
 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 = dev->data->dev_private;
 758
 759         if (ark->user_ext.link_update) {
 760                 return ark->user_ext.link_update
 761                         (dev, wait_to_complete,
 762                          ark->user_data[dev->data->port_id]);
 763         }
 764         return 0;
 765 }
 766
 767 static int
 768 eth_ark_dev_set_link_up(struct rte_eth_dev *dev)
 769 {
 770         dev->data->dev_link.link_status = 1;
 771         struct ark_adapter *ark = 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 = dev->data->dev_private;
 784
 785         if (ark->user_ext.dev_set_link_down)
 786                 return ark->user_ext.dev_set_link_down(dev,
 787                        ark->user_data[dev->data->port_id]);
 788         return 0;
 789 }
 790
 791 static int
 792 eth_ark_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 793 {
 794         uint16_t i;
 795         struct ark_adapter *ark = dev->data->dev_private;
 796
 797         stats->ipackets = 0;
 798         stats->ibytes = 0;
 799         stats->opackets = 0;
 800         stats->obytes = 0;
 801         stats->imissed = 0;
 802         stats->oerrors = 0;
 803
 804         for (i = 0; i < dev->data->nb_tx_queues; i++)
 805                 eth_tx_queue_stats_get(dev->data->tx_queues[i], stats);
 806         for (i = 0; i < dev->data->nb_rx_queues; i++)
 807                 eth_rx_queue_stats_get(dev->data->rx_queues[i], stats);
 808         if (ark->user_ext.stats_get)
 809                 return ark->user_ext.stats_get(dev, stats,
 810                         ark->user_data[dev->data->port_id]);
 811         return 0;
 812 }
 813
 814 static int
 815 eth_ark_dev_stats_reset(struct rte_eth_dev *dev)
 816 {
 817         uint16_t i;
 818         struct ark_adapter *ark = dev->data->dev_private;
 819
 820         for (i = 0; i < dev->data->nb_tx_queues; i++)
 821                 eth_tx_queue_stats_reset(dev->data->tx_queues[i]);
 822         for (i = 0; i < dev->data->nb_rx_queues; i++)
 823                 eth_rx_queue_stats_reset(dev->data->rx_queues[i]);
 824         if (ark->user_ext.stats_reset)
 825                 ark->user_ext.stats_reset(dev,
 826                           ark->user_data[dev->data->port_id]);
 827
 828         return 0;
 829 }
 830
 831 static int
 832 eth_ark_macaddr_add(struct rte_eth_dev *dev,
 833                     struct rte_ether_addr *mac_addr,
 834                     uint32_t index,
 835                     uint32_t pool)
 836 {
 837         struct ark_adapter *ark = dev->data->dev_private;
 838
 839         if (ark->user_ext.mac_addr_add) {
 840                 ark->user_ext.mac_addr_add(dev,
 841                                            mac_addr,
 842                                            index,
 843                                            pool,
 844                            ark->user_data[dev->data->port_id]);
 845                 return 0;
 846         }
 847         return -ENOTSUP;
 848 }
 849
 850 static void
 851 eth_ark_macaddr_remove(struct rte_eth_dev *dev, uint32_t index)
 852 {
 853         struct ark_adapter *ark = dev->data->dev_private;
 854
 855         if (ark->user_ext.mac_addr_remove)
 856                 ark->user_ext.mac_addr_remove(dev, index,
 857                               ark->user_data[dev->data->port_id]);
 858 }
 859
 860 static int
 861 eth_ark_set_default_mac_addr(struct rte_eth_dev *dev,
 862                              struct rte_ether_addr *mac_addr)
 863 {
 864         struct ark_adapter *ark = dev->data->dev_private;
 865
 866         if (ark->user_ext.mac_addr_set) {
 867                 ark->user_ext.mac_addr_set(dev, mac_addr,
 868                            ark->user_data[dev->data->port_id]);
 869                 return 0;
 870         }
 871         return -ENOTSUP;
 872 }
 873
 874 static int
 875 eth_ark_set_mtu(struct rte_eth_dev *dev, uint16_t  size)
 876 {
 877         struct ark_adapter *ark = dev->data->dev_private;
 878
 879         if (ark->user_ext.set_mtu)
 880                 return ark->user_ext.set_mtu(dev, size,
 881                              ark->user_data[dev->data->port_id]);
 882
 883         return -ENOTSUP;
 884 }
 885
 886 static inline int
 887 process_pktdir_arg(const char *key, const char *value,
 888                    void *extra_args)
 889 {
 890         PMD_FUNC_LOG(DEBUG, "key = %s, value = %s\n",
 891                     key, value);
 892         struct ark_adapter *ark =
 893                 (struct ark_adapter *)extra_args;
 894
 895         ark->pkt_dir_v = strtol(value, NULL, 16);
 896         PMD_FUNC_LOG(DEBUG, "pkt_dir_v = 0x%x\n", ark->pkt_dir_v);
 897         return 0;
 898 }
 899
 900 static inline int
 901 process_file_args(const char *key, const char *value, void *extra_args)
 902 {
 903         PMD_FUNC_LOG(DEBUG, "key = %s, value = %s\n",
 904                     key, value);
 905         char *args = (char *)extra_args;
 906
 907         /* Open the configuration file */
 908         FILE *file = fopen(value, "r");
 909         char line[ARK_MAX_ARG_LEN];
 910         int  size = 0;
 911         int first = 1;
 912
 913         if (file == NULL) {
 914                 PMD_DRV_LOG(ERR, "Unable to open "
 915                             "config file %s\n", value);
 916                 return -1;
 917         }
 918
 919         while (fgets(line, sizeof(line), file)) {
 920                 size += strlen(line);
 921                 if (size >= ARK_MAX_ARG_LEN) {
 922                         PMD_DRV_LOG(ERR, "Unable to parse file %s args, "
 923                                     "parameter list is too long\n", value);
 924                         fclose(file);
 925                         return -1;
 926                 }
 927                 if (first) {
 928                         strncpy(args, line, ARK_MAX_ARG_LEN);
 929                         first = 0;
 930                 } else {
 931                         strncat(args, line, ARK_MAX_ARG_LEN);
 932                 }
 933         }
 934         PMD_FUNC_LOG(DEBUG, "file = %s\n", args);
 935         fclose(file);
 936         return 0;
 937 }
 938
 939 static int
 940 eth_ark_check_args(struct ark_adapter *ark, const char *params)
 941 {
 942         struct rte_kvargs *kvlist;
 943         unsigned int k_idx;
 944         struct rte_kvargs_pair *pair = NULL;
 945         int ret = -1;
 946
 947         kvlist = rte_kvargs_parse(params, valid_arguments);
 948         if (kvlist == NULL)
 949                 return 0;
 950
 951         ark->pkt_gen_args[0] = 0;
 952         ark->pkt_chkr_args[0] = 0;
 953
 954         for (k_idx = 0; k_idx < kvlist->count; k_idx++) {
 955                 pair = &kvlist->pairs[k_idx];
 956                 PMD_FUNC_LOG(DEBUG, "**** Arg passed to PMD = %s:%s\n",
 957                              pair->key,
 958                              pair->value);
 959         }
 960
 961         if (rte_kvargs_process(kvlist,
 962                                ARK_PKTDIR_ARG,
 963                                &process_pktdir_arg,
 964                                ark) != 0) {
 965                 PMD_DRV_LOG(ERR, "Unable to parse arg %s\n", ARK_PKTDIR_ARG);
 966                 goto free_kvlist;
 967         }
 968
 969         if (rte_kvargs_process(kvlist,
 970                                ARK_PKTGEN_ARG,
 971                                &process_file_args,
 972                                ark->pkt_gen_args) != 0) {
 973                 PMD_DRV_LOG(ERR, "Unable to parse arg %s\n", ARK_PKTGEN_ARG);
 974                 goto free_kvlist;
 975         }
 976
 977         if (rte_kvargs_process(kvlist,
 978                                ARK_PKTCHKR_ARG,
 979                                &process_file_args,
 980                                ark->pkt_chkr_args) != 0) {
 981                 PMD_DRV_LOG(ERR, "Unable to parse arg %s\n", ARK_PKTCHKR_ARG);
 982                 goto free_kvlist;
 983         }
 984
 985         PMD_DRV_LOG(INFO, "packet director set to 0x%x\n", ark->pkt_dir_v);
 986         /* Setup the packet director */
 987         ark_pktdir_setup(ark->pd, ark->pkt_dir_v);
 988
 989         /* Setup the packet generator */
 990         if (ark->pkt_gen_args[0]) {
 991                 PMD_DRV_LOG(INFO, "Setting up the packet generator\n");
 992                 ark_pktgen_parse(ark->pkt_gen_args);
 993                 ark_pktgen_reset(ark->pg);
 994                 ark_pktgen_setup(ark->pg);
 995                 ark->start_pg = 1;
 996         }
 997
 998         /* Setup the packet checker */
 999         if (ark->pkt_chkr_args[0]) {
1000                 ark_pktchkr_parse(ark->pkt_chkr_args);
1001                 ark_pktchkr_setup(ark->pc);
1002         }
1003
1004         ret = 0;
1005
1006 free_kvlist:
1007         rte_kvargs_free(kvlist);
1008
1009         return ret;
1010 }
1011
1012 RTE_PMD_REGISTER_PCI(net_ark, rte_ark_pmd);
1013 RTE_PMD_REGISTER_KMOD_DEP(net_ark, "* igb_uio | uio_pci_generic ");
1014 RTE_PMD_REGISTER_PCI_TABLE(net_ark, pci_id_ark_map);
1015 RTE_PMD_REGISTER_PARAM_STRING(net_ark,
1016                               ARK_PKTGEN_ARG "=<filename> "
1017                               ARK_PKTCHKR_ARG "=<filename> "
1018                               ARK_PKTDIR_ARG "=<bitmap>");
1019 RTE_LOG_REGISTER(ark_logtype, pmd.net.ark, NOTICE);