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 <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 int eth_ark_dev_stop(struct rte_eth_dev *dev);
  33 static int 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         {RTE_PCI_DEVICE(0x1d6c, 0x100f)},
  92         {RTE_PCI_DEVICE(0x1d6c, 0x1010)},
  93         {RTE_PCI_DEVICE(0x1d6c, 0x1017)},
  94         {RTE_PCI_DEVICE(0x1d6c, 0x1018)},
  95         {RTE_PCI_DEVICE(0x1d6c, 0x1019)},
  96         {.vendor_id = 0, /* sentinel */ },
  97 };
  98
  99 static int
 100 eth_ark_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
 101                 struct rte_pci_device *pci_dev)
 102 {
 103         struct rte_eth_dev *eth_dev;
 104         int ret;
 105
 106         eth_dev = rte_eth_dev_pci_allocate(pci_dev, sizeof(struct ark_adapter));
 107
 108         if (eth_dev == NULL)
 109                 return -ENOMEM;
 110
 111         ret = eth_ark_dev_init(eth_dev);
 112         if (ret)
 113                 rte_eth_dev_release_port(eth_dev);
 114
 115         return ret;
 116 }
 117
 118 static int
 119 eth_ark_pci_remove(struct rte_pci_device *pci_dev)
 120 {
 121         return rte_eth_dev_pci_generic_remove(pci_dev, eth_ark_dev_uninit);
 122 }
 123
 124 static struct rte_pci_driver rte_ark_pmd = {
 125         .id_table = pci_id_ark_map,
 126         .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC,
 127         .probe = eth_ark_pci_probe,
 128         .remove = eth_ark_pci_remove,
 129 };
 130
 131 static const struct eth_dev_ops ark_eth_dev_ops = {
 132         .dev_configure = eth_ark_dev_configure,
 133         .dev_start = eth_ark_dev_start,
 134         .dev_stop = eth_ark_dev_stop,
 135         .dev_close = eth_ark_dev_close,
 136
 137         .dev_infos_get = eth_ark_dev_info_get,
 138
 139         .rx_queue_setup = eth_ark_dev_rx_queue_setup,
 140         .tx_queue_setup = eth_ark_tx_queue_setup,
 141
 142         .link_update = eth_ark_dev_link_update,
 143         .dev_set_link_up = eth_ark_dev_set_link_up,
 144         .dev_set_link_down = eth_ark_dev_set_link_down,
 145
 146         .rx_queue_start = eth_ark_rx_start_queue,
 147         .rx_queue_stop = eth_ark_rx_stop_queue,
 148
 149         .tx_queue_start = eth_ark_tx_queue_start,
 150         .tx_queue_stop = eth_ark_tx_queue_stop,
 151
 152         .stats_get = eth_ark_dev_stats_get,
 153         .stats_reset = eth_ark_dev_stats_reset,
 154
 155         .mac_addr_add = eth_ark_macaddr_add,
 156         .mac_addr_remove = eth_ark_macaddr_remove,
 157         .mac_addr_set = eth_ark_set_default_mac_addr,
 158
 159         .mtu_set = eth_ark_set_mtu,
 160 };
 161
 162 static int
 163 check_for_ext(struct ark_adapter *ark)
 164 {
 165         int found = 0;
 166
 167         /* Get the env */
 168         const char *dllpath = getenv("ARK_EXT_PATH");
 169
 170         if (dllpath == NULL) {
 171                 ARK_PMD_LOG(DEBUG, "EXT NO dll path specified\n");
 172                 return 0;
 173         }
 174         ARK_PMD_LOG(NOTICE, "EXT found dll path at %s\n", dllpath);
 175
 176         /* Open and load the .so */
 177         ark->d_handle = dlopen(dllpath, RTLD_LOCAL | RTLD_LAZY);
 178         if (ark->d_handle == NULL) {
 179                 ARK_PMD_LOG(ERR, "Could not load user extension %s\n",
 180                             dllpath);
 181                 return -1;
 182         }
 183         ARK_PMD_LOG(DEBUG, "SUCCESS: loaded user extension %s\n",
 184                             dllpath);
 185
 186         /* Get the entry points */
 187         ark->user_ext.dev_init =
 188                 (void *(*)(struct rte_eth_dev *, void *, int))
 189                 dlsym(ark->d_handle, "rte_pmd_ark_dev_init");
 190         ARK_PMD_LOG(DEBUG, "device ext init pointer = %p\n",
 191                       ark->user_ext.dev_init);
 192         ark->user_ext.dev_get_port_count =
 193                 (int (*)(struct rte_eth_dev *, void *))
 194                 dlsym(ark->d_handle, "rte_pmd_ark_dev_get_port_count");
 195         ark->user_ext.dev_uninit =
 196                 (void (*)(struct rte_eth_dev *, void *))
 197                 dlsym(ark->d_handle, "rte_pmd_ark_dev_uninit");
 198         ark->user_ext.dev_configure =
 199                 (int (*)(struct rte_eth_dev *, void *))
 200                 dlsym(ark->d_handle, "rte_pmd_ark_dev_configure");
 201         ark->user_ext.dev_start =
 202                 (int (*)(struct rte_eth_dev *, void *))
 203                 dlsym(ark->d_handle, "rte_pmd_ark_dev_start");
 204         ark->user_ext.dev_stop =
 205                 (void (*)(struct rte_eth_dev *, void *))
 206                 dlsym(ark->d_handle, "rte_pmd_ark_dev_stop");
 207         ark->user_ext.dev_close =
 208                 (void (*)(struct rte_eth_dev *, void *))
 209                 dlsym(ark->d_handle, "rte_pmd_ark_dev_close");
 210         ark->user_ext.link_update =
 211                 (int (*)(struct rte_eth_dev *, int, void *))
 212                 dlsym(ark->d_handle, "rte_pmd_ark_link_update");
 213         ark->user_ext.dev_set_link_up =
 214                 (int (*)(struct rte_eth_dev *, void *))
 215                 dlsym(ark->d_handle, "rte_pmd_ark_dev_set_link_up");
 216         ark->user_ext.dev_set_link_down =
 217                 (int (*)(struct rte_eth_dev *, void *))
 218                 dlsym(ark->d_handle, "rte_pmd_ark_dev_set_link_down");
 219         ark->user_ext.stats_get =
 220                 (int (*)(struct rte_eth_dev *, struct rte_eth_stats *,
 221                           void *))
 222                 dlsym(ark->d_handle, "rte_pmd_ark_stats_get");
 223         ark->user_ext.stats_reset =
 224                 (void (*)(struct rte_eth_dev *, void *))
 225                 dlsym(ark->d_handle, "rte_pmd_ark_stats_reset");
 226         ark->user_ext.mac_addr_add =
 227                 (void (*)(struct rte_eth_dev *, struct rte_ether_addr *,
 228                         uint32_t, uint32_t, void *))
 229                 dlsym(ark->d_handle, "rte_pmd_ark_mac_addr_add");
 230         ark->user_ext.mac_addr_remove =
 231                 (void (*)(struct rte_eth_dev *, uint32_t, void *))
 232                 dlsym(ark->d_handle, "rte_pmd_ark_mac_addr_remove");
 233         ark->user_ext.mac_addr_set =
 234                 (void (*)(struct rte_eth_dev *, struct rte_ether_addr *,
 235                           void *))
 236                 dlsym(ark->d_handle, "rte_pmd_ark_mac_addr_set");
 237         ark->user_ext.set_mtu =
 238                 (int (*)(struct rte_eth_dev *, uint16_t,
 239                           void *))
 240                 dlsym(ark->d_handle, "rte_pmd_ark_set_mtu");
 241         ark->user_ext.rx_user_meta_hook =
 242                 (rx_user_meta_hook_fn)dlsym(ark->d_handle,
 243                                             "rte_pmd_ark_rx_user_meta_hook");
 244         ark->user_ext.tx_user_meta_hook =
 245                 (tx_user_meta_hook_fn)dlsym(ark->d_handle,
 246                                             "rte_pmd_ark_tx_user_meta_hook");
 247
 248         return found;
 249 }
 250
 251 static int
 252 eth_ark_dev_init(struct rte_eth_dev *dev)
 253 {
 254         struct ark_adapter *ark = dev->data->dev_private;
 255         struct rte_pci_device *pci_dev;
 256         int ret;
 257         int port_count = 1;
 258         int p;
 259
 260         ark->eth_dev = dev;
 261
 262         ARK_PMD_LOG(DEBUG, "\n");
 263
 264         /* Check to see if there is an extension that we need to load */
 265         ret = check_for_ext(ark);
 266         if (ret)
 267                 return ret;
 268
 269         pci_dev = RTE_ETH_DEV_TO_PCI(dev);
 270         rte_eth_copy_pci_info(dev, pci_dev);
 271         dev->data->dev_flags |= RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS;
 272
 273         /* Use dummy function until setup */
 274         dev->rx_pkt_burst = &eth_ark_recv_pkts_noop;
 275         dev->tx_pkt_burst = &eth_ark_xmit_pkts_noop;
 276
 277         ark->bar0 = (uint8_t *)pci_dev->mem_resource[0].addr;
 278         ark->a_bar = (uint8_t *)pci_dev->mem_resource[2].addr;
 279
 280         ark->sysctrl.v  = (void *)&ark->bar0[ARK_SYSCTRL_BASE];
 281         ark->mpurx.v  = (void *)&ark->bar0[ARK_MPU_RX_BASE];
 282         ark->udm.v  = (void *)&ark->bar0[ARK_UDM_BASE];
 283         ark->mputx.v  = (void *)&ark->bar0[ARK_MPU_TX_BASE];
 284         ark->ddm.v  = (void *)&ark->bar0[ARK_DDM_BASE];
 285         ark->cmac.v  = (void *)&ark->bar0[ARK_CMAC_BASE];
 286         ark->external.v  = (void *)&ark->bar0[ARK_EXTERNAL_BASE];
 287         ark->pktdir.v  = (void *)&ark->bar0[ARK_PKTDIR_BASE];
 288         ark->pktgen.v  = (void *)&ark->bar0[ARK_PKTGEN_BASE];
 289         ark->pktchkr.v  = (void *)&ark->bar0[ARK_PKTCHKR_BASE];
 290
 291         ark->rqpacing =
 292                 (struct ark_rqpace_t *)(ark->bar0 + ARK_RCPACING_BASE);
 293         ark->started = 0;
 294         ark->pkt_dir_v = ARK_PKT_DIR_INIT_VAL;
 295
 296         ARK_PMD_LOG(INFO, "Sys Ctrl Const = 0x%x  HW Commit_ID: %08x\n",
 297                       ark->sysctrl.t32[4],
 298                       rte_be_to_cpu_32(ark->sysctrl.t32[0x20 / 4]));
 299         ARK_PMD_LOG(NOTICE, "Arkville HW Commit_ID: %08x\n",
 300                     rte_be_to_cpu_32(ark->sysctrl.t32[0x20 / 4]));
 301
 302         /* If HW sanity test fails, return an error */
 303         if (ark->sysctrl.t32[4] != 0xcafef00d) {
 304                 ARK_PMD_LOG(ERR,
 305                             "HW Sanity test has failed, expected constant"
 306                             " 0x%x, read 0x%x (%s)\n",
 307                             0xcafef00d,
 308                             ark->sysctrl.t32[4], __func__);
 309                 return -1;
 310         }
 311         if (ark->sysctrl.t32[3] != 0) {
 312                 if (ark_rqp_lasped(ark->rqpacing)) {
 313                         ARK_PMD_LOG(ERR, "Arkville Evaluation System - "
 314                                     "Timer has Expired\n");
 315                         return -1;
 316                 }
 317                 ARK_PMD_LOG(WARNING, "Arkville Evaluation System - "
 318                             "Timer is Running\n");
 319         }
 320
 321         ARK_PMD_LOG(DEBUG,
 322                     "HW Sanity test has PASSED, expected constant"
 323                     " 0x%x, read 0x%x (%s)\n",
 324                     0xcafef00d, ark->sysctrl.t32[4], __func__);
 325
 326         /* We are a single function multi-port device. */
 327         ret = ark_config_device(dev);
 328         if (ret)
 329                 return -1;
 330
 331         dev->dev_ops = &ark_eth_dev_ops;
 332         dev->rx_queue_count = eth_ark_dev_rx_queue_count;
 333
 334         dev->data->mac_addrs = rte_zmalloc("ark", RTE_ETHER_ADDR_LEN, 0);
 335         if (!dev->data->mac_addrs) {
 336                 ARK_PMD_LOG(ERR,
 337                             "Failed to allocated memory for storing mac address"
 338                             );
 339         }
 340
 341         if (ark->user_ext.dev_init) {
 342                 ark->user_data[dev->data->port_id] =
 343                         ark->user_ext.dev_init(dev, ark->a_bar, 0);
 344                 if (!ark->user_data[dev->data->port_id]) {
 345                         ARK_PMD_LOG(WARNING,
 346                                     "Failed to initialize PMD extension!"
 347                                     " continuing without it\n");
 348                         memset(&ark->user_ext, 0, sizeof(struct ark_user_ext));
 349                         dlclose(ark->d_handle);
 350                 }
 351         }
 352
 353         if (pci_dev->device.devargs)
 354                 ret = eth_ark_check_args(ark, pci_dev->device.devargs->args);
 355         else
 356                 ARK_PMD_LOG(INFO, "No Device args found\n");
 357
 358         if (ret)
 359                 goto error;
 360         /*
 361          * We will create additional devices based on the number of requested
 362          * ports
 363          */
 364         if (ark->user_ext.dev_get_port_count)
 365                 port_count =
 366                         ark->user_ext.dev_get_port_count(dev,
 367                                  ark->user_data[dev->data->port_id]);
 368         ark->num_ports = port_count;
 369
 370         for (p = 0; p < port_count; p++) {
 371                 struct rte_eth_dev *eth_dev;
 372                 char name[RTE_ETH_NAME_MAX_LEN];
 373
 374                 snprintf(name, sizeof(name), "arketh%d",
 375                          dev->data->port_id + p);
 376
 377                 if (p == 0) {
 378                         /* First port is already allocated by DPDK */
 379                         eth_dev = ark->eth_dev;
 380                         rte_eth_dev_probing_finish(eth_dev);
 381                         continue;
 382                 }
 383
 384                 /* reserve an ethdev entry */
 385                 eth_dev = rte_eth_dev_allocate(name);
 386                 if (!eth_dev) {
 387                         ARK_PMD_LOG(ERR,
 388                                     "Could not allocate eth_dev for port %d\n",
 389                                     p);
 390                         goto error;
 391                 }
 392
 393                 eth_dev->device = &pci_dev->device;
 394                 eth_dev->data->dev_private = ark;
 395                 eth_dev->dev_ops = ark->eth_dev->dev_ops;
 396                 eth_dev->tx_pkt_burst = ark->eth_dev->tx_pkt_burst;
 397                 eth_dev->rx_pkt_burst = ark->eth_dev->rx_pkt_burst;
 398
 399                 rte_eth_copy_pci_info(eth_dev, pci_dev);
 400                 eth_dev->data->dev_flags |= RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS;
 401
 402                 eth_dev->data->mac_addrs = rte_zmalloc(name,
 403                                                 RTE_ETHER_ADDR_LEN, 0);
 404                 if (!eth_dev->data->mac_addrs) {
 405                         ARK_PMD_LOG(ERR,
 406                                     "Memory allocation for MAC failed!"
 407                                     " Exiting.\n");
 408                         goto error;
 409                 }
 410
 411                 if (ark->user_ext.dev_init) {
 412                         ark->user_data[eth_dev->data->port_id] =
 413                                 ark->user_ext.dev_init(dev, ark->a_bar, p);
 414                 }
 415
 416                 rte_eth_dev_probing_finish(eth_dev);
 417         }
 418
 419         return ret;
 420
 421 error:
 422         rte_free(dev->data->mac_addrs);
 423         dev->data->mac_addrs = NULL;
 424         return -1;
 425 }
 426
 427 /*
 428  *Initial device configuration when device is opened
 429  * setup the DDM, and UDM
 430  * Called once per PCIE device
 431  */
 432 static int
 433 ark_config_device(struct rte_eth_dev *dev)
 434 {
 435         struct ark_adapter *ark = dev->data->dev_private;
 436         uint16_t num_q, i;
 437         struct ark_mpu_t *mpu;
 438
 439         /*
 440          * Make sure that the packet director, generator and checker are in a
 441          * known state
 442          */
 443         ark->start_pg = 0;
 444         ark->pg = ark_pktgen_init(ark->pktgen.v, 0, 1);
 445         if (ark->pg == NULL)
 446                 return -1;
 447         ark_pktgen_reset(ark->pg);
 448         ark->pc = ark_pktchkr_init(ark->pktchkr.v, 0, 1);
 449         if (ark->pc == NULL)
 450                 return -1;
 451         ark_pktchkr_stop(ark->pc);
 452         ark->pd = ark_pktdir_init(ark->pktdir.v);
 453         if (ark->pd == NULL)
 454                 return -1;
 455
 456         /* Verify HW */
 457         if (ark_udm_verify(ark->udm.v))
 458                 return -1;
 459         if (ark_ddm_verify(ark->ddm.v))
 460                 return -1;
 461
 462         /* UDM */
 463         if (ark_udm_reset(ark->udm.v)) {
 464                 ARK_PMD_LOG(ERR, "Unable to stop and reset UDM\n");
 465                 return -1;
 466         }
 467         /* Keep in reset until the MPU are cleared */
 468
 469         /* MPU reset */
 470         mpu = ark->mpurx.v;
 471         num_q = ark_api_num_queues(mpu);
 472         ark->rx_queues = num_q;
 473         for (i = 0; i < num_q; i++) {
 474                 ark_mpu_reset(mpu);
 475                 mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 476         }
 477
 478         ark_udm_stop(ark->udm.v, 0);
 479         ark_udm_configure(ark->udm.v,
 480                           RTE_PKTMBUF_HEADROOM,
 481                           RTE_MBUF_DEFAULT_DATAROOM,
 482                           ARK_RX_WRITE_TIME_NS);
 483         ark_udm_stats_reset(ark->udm.v);
 484         ark_udm_stop(ark->udm.v, 0);
 485
 486         /* TX -- DDM */
 487         if (ark_ddm_stop(ark->ddm.v, 1))
 488                 ARK_PMD_LOG(ERR, "Unable to stop DDM\n");
 489
 490         mpu = ark->mputx.v;
 491         num_q = ark_api_num_queues(mpu);
 492         ark->tx_queues = num_q;
 493         for (i = 0; i < num_q; i++) {
 494                 ark_mpu_reset(mpu);
 495                 mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 496         }
 497
 498         ark_ddm_reset(ark->ddm.v);
 499         ark_ddm_stats_reset(ark->ddm.v);
 500
 501         ark_ddm_stop(ark->ddm.v, 0);
 502         ark_rqp_stats_reset(ark->rqpacing);
 503
 504         return 0;
 505 }
 506
 507 static int
 508 eth_ark_dev_uninit(struct rte_eth_dev *dev)
 509 {
 510         struct ark_adapter *ark = dev->data->dev_private;
 511
 512         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 513                 return 0;
 514
 515         if (ark->user_ext.dev_uninit)
 516                 ark->user_ext.dev_uninit(dev,
 517                          ark->user_data[dev->data->port_id]);
 518
 519         ark_pktgen_uninit(ark->pg);
 520         ark_pktchkr_uninit(ark->pc);
 521
 522         return 0;
 523 }
 524
 525 static int
 526 eth_ark_dev_configure(struct rte_eth_dev *dev)
 527 {
 528         struct ark_adapter *ark = dev->data->dev_private;
 529
 530         eth_ark_dev_set_link_up(dev);
 531         if (ark->user_ext.dev_configure)
 532                 return ark->user_ext.dev_configure(dev,
 533                            ark->user_data[dev->data->port_id]);
 534         return 0;
 535 }
 536
 537 static int
 538 eth_ark_dev_start(struct rte_eth_dev *dev)
 539 {
 540         struct ark_adapter *ark = dev->data->dev_private;
 541         int i;
 542
 543         /* RX Side */
 544         /* start UDM */
 545         ark_udm_start(ark->udm.v);
 546
 547         for (i = 0; i < dev->data->nb_rx_queues; i++)
 548                 eth_ark_rx_start_queue(dev, i);
 549
 550         /* TX Side */
 551         for (i = 0; i < dev->data->nb_tx_queues; i++)
 552                 eth_ark_tx_queue_start(dev, i);
 553
 554         /* start DDM */
 555         ark_ddm_start(ark->ddm.v);
 556
 557         ark->started = 1;
 558         /* set xmit and receive function */
 559         dev->rx_pkt_burst = &eth_ark_recv_pkts;
 560         dev->tx_pkt_burst = &eth_ark_xmit_pkts;
 561
 562         if (ark->start_pg)
 563                 ark_pktchkr_run(ark->pc);
 564
 565         if (ark->start_pg && (dev->data->port_id == 0)) {
 566                 pthread_t thread;
 567
 568                 /* Delay packet generatpr start allow the hardware to be ready
 569                  * This is only used for sanity checking with internal generator
 570                  */
 571                 if (pthread_create(&thread, NULL,
 572                                    ark_pktgen_delay_start, ark->pg)) {
 573                         ARK_PMD_LOG(ERR, "Could not create pktgen "
 574                                     "starter thread\n");
 575                         return -1;
 576                 }
 577         }
 578
 579         if (ark->user_ext.dev_start)
 580                 ark->user_ext.dev_start(dev,
 581                         ark->user_data[dev->data->port_id]);
 582
 583         return 0;
 584 }
 585
 586 static int
 587 eth_ark_dev_stop(struct rte_eth_dev *dev)
 588 {
 589         uint16_t i;
 590         int status;
 591         struct ark_adapter *ark = dev->data->dev_private;
 592         struct ark_mpu_t *mpu;
 593
 594         if (ark->started == 0)
 595                 return 0;
 596         ark->started = 0;
 597         dev->data->dev_started = 0;
 598
 599         /* Stop the extension first */
 600         if (ark->user_ext.dev_stop)
 601                 ark->user_ext.dev_stop(dev,
 602                        ark->user_data[dev->data->port_id]);
 603
 604         /* Stop the packet generator */
 605         if (ark->start_pg)
 606                 ark_pktgen_pause(ark->pg);
 607
 608         dev->rx_pkt_burst = &eth_ark_recv_pkts_noop;
 609         dev->tx_pkt_burst = &eth_ark_xmit_pkts_noop;
 610
 611         /* STOP TX Side */
 612         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 613                 status = eth_ark_tx_queue_stop(dev, i);
 614                 if (status != 0) {
 615                         uint16_t port = dev->data->port_id;
 616                         ARK_PMD_LOG(ERR,
 617                                     "tx_queue stop anomaly"
 618                                     " port %u, queue %u\n",
 619                                     port, i);
 620                 }
 621         }
 622
 623         /* Stop DDM */
 624         /* Wait up to 0.1 second.  each stop is up to 1000 * 10 useconds */
 625         for (i = 0; i < 10; i++) {
 626                 status = ark_ddm_stop(ark->ddm.v, 1);
 627                 if (status == 0)
 628                         break;
 629         }
 630         if (status || i != 0) {
 631                 ARK_PMD_LOG(ERR, "DDM stop anomaly. status:"
 632                             " %d iter: %u. (%s)\n",
 633                             status,
 634                             i,
 635                             __func__);
 636                 ark_ddm_dump(ark->ddm.v, "Stop anomaly");
 637
 638                 mpu = ark->mputx.v;
 639                 for (i = 0; i < ark->tx_queues; i++) {
 640                         ark_mpu_dump(mpu, "DDM failure dump", i);
 641                         mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 642                 }
 643         }
 644
 645         /* STOP RX Side */
 646         /* Stop UDM  multiple tries attempted */
 647         for (i = 0; i < 10; i++) {
 648                 status = ark_udm_stop(ark->udm.v, 1);
 649                 if (status == 0)
 650                         break;
 651         }
 652         if (status || i != 0) {
 653                 ARK_PMD_LOG(ERR, "UDM stop anomaly. status %d iter: %u. (%s)\n",
 654                             status, i, __func__);
 655                 ark_udm_dump(ark->udm.v, "Stop anomaly");
 656
 657                 mpu = ark->mpurx.v;
 658                 for (i = 0; i < ark->rx_queues; i++) {
 659                         ark_mpu_dump(mpu, "UDM Stop anomaly", i);
 660                         mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 661                 }
 662         }
 663
 664         ark_udm_dump_stats(ark->udm.v, "Post stop");
 665         ark_udm_dump_perf(ark->udm.v, "Post stop");
 666
 667         for (i = 0; i < dev->data->nb_rx_queues; i++)
 668                 eth_ark_rx_dump_queue(dev, i, __func__);
 669
 670         /* Stop the packet checker if it is running */
 671         if (ark->start_pg) {
 672                 ark_pktchkr_dump_stats(ark->pc);
 673                 ark_pktchkr_stop(ark->pc);
 674         }
 675
 676         return 0;
 677 }
 678
 679 static int
 680 eth_ark_dev_close(struct rte_eth_dev *dev)
 681 {
 682         struct ark_adapter *ark = dev->data->dev_private;
 683         uint16_t i;
 684
 685         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 686                 return 0;
 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         return 0;
 711 }
 712
 713 static int
 714 eth_ark_dev_info_get(struct rte_eth_dev *dev,
 715                      struct rte_eth_dev_info *dev_info)
 716 {
 717         struct ark_adapter *ark = dev->data->dev_private;
 718         struct ark_mpu_t *tx_mpu = RTE_PTR_ADD(ark->bar0, ARK_MPU_TX_BASE);
 719         struct ark_mpu_t *rx_mpu = RTE_PTR_ADD(ark->bar0, ARK_MPU_RX_BASE);
 720         uint16_t ports = ark->num_ports;
 721
 722         dev_info->max_rx_pktlen = ARK_RX_MAX_PKT_LEN;
 723         dev_info->min_rx_bufsize = ARK_RX_MIN_BUFSIZE;
 724
 725         dev_info->max_rx_queues = ark_api_num_queues_per_port(rx_mpu, ports);
 726         dev_info->max_tx_queues = ark_api_num_queues_per_port(tx_mpu, ports);
 727
 728         dev_info->rx_desc_lim = (struct rte_eth_desc_lim) {
 729                 .nb_max = ARK_RX_MAX_QUEUE,
 730                 .nb_min = ARK_RX_MIN_QUEUE,
 731                 .nb_align = ARK_RX_MIN_QUEUE}; /* power of 2 */
 732
 733         dev_info->tx_desc_lim = (struct rte_eth_desc_lim) {
 734                 .nb_max = ARK_TX_MAX_QUEUE,
 735                 .nb_min = ARK_TX_MIN_QUEUE,
 736                 .nb_align = ARK_TX_MIN_QUEUE}; /* power of 2 */
 737
 738         /* ARK PMD supports all line rates, how do we indicate that here ?? */
 739         dev_info->speed_capa = (ETH_LINK_SPEED_1G |
 740                                 ETH_LINK_SPEED_10G |
 741                                 ETH_LINK_SPEED_25G |
 742                                 ETH_LINK_SPEED_40G |
 743                                 ETH_LINK_SPEED_50G |
 744                                 ETH_LINK_SPEED_100G);
 745
 746         dev_info->rx_offload_capa = DEV_RX_OFFLOAD_TIMESTAMP;
 747
 748         return 0;
 749 }
 750
 751 static int
 752 eth_ark_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 753 {
 754         ARK_PMD_LOG(DEBUG, "link status = %d\n",
 755                         dev->data->dev_link.link_status);
 756         struct ark_adapter *ark = dev->data->dev_private;
 757
 758         if (ark->user_ext.link_update) {
 759                 return ark->user_ext.link_update
 760                         (dev, wait_to_complete,
 761                          ark->user_data[dev->data->port_id]);
 762         }
 763         return 0;
 764 }
 765
 766 static int
 767 eth_ark_dev_set_link_up(struct rte_eth_dev *dev)
 768 {
 769         dev->data->dev_link.link_status = 1;
 770         struct ark_adapter *ark = dev->data->dev_private;
 771
 772         if (ark->user_ext.dev_set_link_up)
 773                 return ark->user_ext.dev_set_link_up(dev,
 774                              ark->user_data[dev->data->port_id]);
 775         return 0;
 776 }
 777
 778 static int
 779 eth_ark_dev_set_link_down(struct rte_eth_dev *dev)
 780 {
 781         dev->data->dev_link.link_status = 0;
 782         struct ark_adapter *ark = dev->data->dev_private;
 783
 784         if (ark->user_ext.dev_set_link_down)
 785                 return ark->user_ext.dev_set_link_down(dev,
 786                        ark->user_data[dev->data->port_id]);
 787         return 0;
 788 }
 789
 790 static int
 791 eth_ark_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 792 {
 793         uint16_t i;
 794         struct ark_adapter *ark = dev->data->dev_private;
 795
 796         stats->ipackets = 0;
 797         stats->ibytes = 0;
 798         stats->opackets = 0;
 799         stats->obytes = 0;
 800         stats->imissed = 0;
 801         stats->oerrors = 0;
 802
 803         for (i = 0; i < dev->data->nb_tx_queues; i++)
 804                 eth_tx_queue_stats_get(dev->data->tx_queues[i], stats);
 805         for (i = 0; i < dev->data->nb_rx_queues; i++)
 806                 eth_rx_queue_stats_get(dev->data->rx_queues[i], stats);
 807         if (ark->user_ext.stats_get)
 808                 return ark->user_ext.stats_get(dev, stats,
 809                         ark->user_data[dev->data->port_id]);
 810         return 0;
 811 }
 812
 813 static int
 814 eth_ark_dev_stats_reset(struct rte_eth_dev *dev)
 815 {
 816         uint16_t i;
 817         struct ark_adapter *ark = dev->data->dev_private;
 818
 819         for (i = 0; i < dev->data->nb_tx_queues; i++)
 820                 eth_tx_queue_stats_reset(dev->data->tx_queues[i]);
 821         for (i = 0; i < dev->data->nb_rx_queues; i++)
 822                 eth_rx_queue_stats_reset(dev->data->rx_queues[i]);
 823         if (ark->user_ext.stats_reset)
 824                 ark->user_ext.stats_reset(dev,
 825                           ark->user_data[dev->data->port_id]);
 826
 827         return 0;
 828 }
 829
 830 static int
 831 eth_ark_macaddr_add(struct rte_eth_dev *dev,
 832                     struct rte_ether_addr *mac_addr,
 833                     uint32_t index,
 834                     uint32_t pool)
 835 {
 836         struct ark_adapter *ark = dev->data->dev_private;
 837
 838         if (ark->user_ext.mac_addr_add) {
 839                 ark->user_ext.mac_addr_add(dev,
 840                                            mac_addr,
 841                                            index,
 842                                            pool,
 843                            ark->user_data[dev->data->port_id]);
 844                 return 0;
 845         }
 846         return -ENOTSUP;
 847 }
 848
 849 static void
 850 eth_ark_macaddr_remove(struct rte_eth_dev *dev, uint32_t index)
 851 {
 852         struct ark_adapter *ark = dev->data->dev_private;
 853
 854         if (ark->user_ext.mac_addr_remove)
 855                 ark->user_ext.mac_addr_remove(dev, index,
 856                               ark->user_data[dev->data->port_id]);
 857 }
 858
 859 static int
 860 eth_ark_set_default_mac_addr(struct rte_eth_dev *dev,
 861                              struct rte_ether_addr *mac_addr)
 862 {
 863         struct ark_adapter *ark = dev->data->dev_private;
 864
 865         if (ark->user_ext.mac_addr_set) {
 866                 ark->user_ext.mac_addr_set(dev, mac_addr,
 867                            ark->user_data[dev->data->port_id]);
 868                 return 0;
 869         }
 870         return -ENOTSUP;
 871 }
 872
 873 static int
 874 eth_ark_set_mtu(struct rte_eth_dev *dev, uint16_t  size)
 875 {
 876         struct ark_adapter *ark = dev->data->dev_private;
 877
 878         if (ark->user_ext.set_mtu)
 879                 return ark->user_ext.set_mtu(dev, size,
 880                              ark->user_data[dev->data->port_id]);
 881
 882         return -ENOTSUP;
 883 }
 884
 885 static inline int
 886 process_pktdir_arg(const char *key, const char *value,
 887                    void *extra_args)
 888 {
 889         ARK_PMD_LOG(DEBUG, "key = %s, value = %s\n",
 890                     key, value);
 891         struct ark_adapter *ark =
 892                 (struct ark_adapter *)extra_args;
 893
 894         ark->pkt_dir_v = strtol(value, NULL, 16);
 895         ARK_PMD_LOG(DEBUG, "pkt_dir_v = 0x%x\n", ark->pkt_dir_v);
 896         return 0;
 897 }
 898
 899 static inline int
 900 process_file_args(const char *key, const char *value, void *extra_args)
 901 {
 902         ARK_PMD_LOG(DEBUG, "key = %s, value = %s\n",
 903                     key, value);
 904         char *args = (char *)extra_args;
 905
 906         /* Open the configuration file */
 907         FILE *file = fopen(value, "r");
 908         char line[ARK_MAX_ARG_LEN];
 909         int  size = 0;
 910         int first = 1;
 911
 912         if (file == NULL) {
 913                 ARK_PMD_LOG(ERR, "Unable to open "
 914                             "config file %s\n", value);
 915                 return -1;
 916         }
 917
 918         while (fgets(line, sizeof(line), file)) {
 919                 size += strlen(line);
 920                 if (size >= ARK_MAX_ARG_LEN) {
 921                         ARK_PMD_LOG(ERR, "Unable to parse file %s args, "
 922                                     "parameter list is too long\n", value);
 923                         fclose(file);
 924                         return -1;
 925                 }
 926                 if (first) {
 927                         strncpy(args, line, ARK_MAX_ARG_LEN);
 928                         first = 0;
 929                 } else {
 930                         strncat(args, line, ARK_MAX_ARG_LEN);
 931                 }
 932         }
 933         ARK_PMD_LOG(DEBUG, "file = %s\n", args);
 934         fclose(file);
 935         return 0;
 936 }
 937
 938 static int
 939 eth_ark_check_args(struct ark_adapter *ark, const char *params)
 940 {
 941         struct rte_kvargs *kvlist;
 942         unsigned int k_idx;
 943         struct rte_kvargs_pair *pair = NULL;
 944         int ret = -1;
 945
 946         kvlist = rte_kvargs_parse(params, valid_arguments);
 947         if (kvlist == NULL)
 948                 return 0;
 949
 950         ark->pkt_gen_args[0] = 0;
 951         ark->pkt_chkr_args[0] = 0;
 952
 953         for (k_idx = 0; k_idx < kvlist->count; k_idx++) {
 954                 pair = &kvlist->pairs[k_idx];
 955                 ARK_PMD_LOG(DEBUG, "**** Arg passed to PMD = %s:%s\n",
 956                              pair->key,
 957                              pair->value);
 958         }
 959
 960         if (rte_kvargs_process(kvlist,
 961                                ARK_PKTDIR_ARG,
 962                                &process_pktdir_arg,
 963                                ark) != 0) {
 964                 ARK_PMD_LOG(ERR, "Unable to parse arg %s\n", ARK_PKTDIR_ARG);
 965                 goto free_kvlist;
 966         }
 967
 968         if (rte_kvargs_process(kvlist,
 969                                ARK_PKTGEN_ARG,
 970                                &process_file_args,
 971                                ark->pkt_gen_args) != 0) {
 972                 ARK_PMD_LOG(ERR, "Unable to parse arg %s\n", ARK_PKTGEN_ARG);
 973                 goto free_kvlist;
 974         }
 975
 976         if (rte_kvargs_process(kvlist,
 977                                ARK_PKTCHKR_ARG,
 978                                &process_file_args,
 979                                ark->pkt_chkr_args) != 0) {
 980                 ARK_PMD_LOG(ERR, "Unable to parse arg %s\n", ARK_PKTCHKR_ARG);
 981                 goto free_kvlist;
 982         }
 983
 984         ARK_PMD_LOG(INFO, "packet director set to 0x%x\n", ark->pkt_dir_v);
 985         /* Setup the packet director */
 986         ark_pktdir_setup(ark->pd, ark->pkt_dir_v);
 987
 988         /* Setup the packet generator */
 989         if (ark->pkt_gen_args[0]) {
 990                 ARK_PMD_LOG(DEBUG, "Setting up the packet generator\n");
 991                 ark_pktgen_parse(ark->pkt_gen_args);
 992                 ark_pktgen_reset(ark->pg);
 993                 ark_pktgen_setup(ark->pg);
 994                 ark->start_pg = 1;
 995         }
 996
 997         /* Setup the packet checker */
 998         if (ark->pkt_chkr_args[0]) {
 999                 ark_pktchkr_parse(ark->pkt_chkr_args);
1000                 ark_pktchkr_setup(ark->pc);
1001         }
1002
1003         ret = 0;
1004
1005 free_kvlist:
1006         rte_kvargs_free(kvlist);
1007
1008         return ret;
1009 }
1010
1011 RTE_PMD_REGISTER_PCI(net_ark, rte_ark_pmd);
1012 RTE_PMD_REGISTER_KMOD_DEP(net_ark, "* igb_uio | uio_pci_generic ");
1013 RTE_PMD_REGISTER_PCI_TABLE(net_ark, pci_id_ark_map);
1014 RTE_PMD_REGISTER_PARAM_STRING(net_ark,
1015                               ARK_PKTGEN_ARG "=<filename> "
1016                               ARK_PKTCHKR_ARG "=<filename> "
1017                               ARK_PKTDIR_ARG "=<bitmap>");
1018 RTE_LOG_REGISTER(ark_logtype, pmd.net.ark, NOTICE);