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 #define AR_VENDOR_ID 0x1d6c
  89 static const struct rte_pci_id pci_id_ark_map[] = {
  90         {RTE_PCI_DEVICE(AR_VENDOR_ID, 0x100d)},
  91         {RTE_PCI_DEVICE(AR_VENDOR_ID, 0x100e)},
  92         {RTE_PCI_DEVICE(AR_VENDOR_ID, 0x100f)},
  93         {RTE_PCI_DEVICE(AR_VENDOR_ID, 0x1010)},
  94         {RTE_PCI_DEVICE(AR_VENDOR_ID, 0x1017)},
  95         {RTE_PCI_DEVICE(AR_VENDOR_ID, 0x1018)},
  96         {RTE_PCI_DEVICE(AR_VENDOR_ID, 0x1019)},
  97         {RTE_PCI_DEVICE(AR_VENDOR_ID, 0x101e)},
  98         {RTE_PCI_DEVICE(AR_VENDOR_ID, 0x101f)},
  99         {.vendor_id = 0, /* sentinel */ },
 100 };
 101
 102 /*
 103  * This structure is used to statically define the capabilities
 104  * of supported devices.
 105  * Capabilities:
 106  *  rqpacing -
 107  * Some HW variants require that PCIe read-requests be correctly throttled.
 108  * This is called "rqpacing" and has to do with credit and flow control
 109  * on certain Arkville implementations.
 110  */
 111 struct ark_caps {
 112         bool rqpacing;
 113 };
 114 struct ark_dev_caps {
 115         uint32_t  device_id;
 116         struct ark_caps  caps;
 117 };
 118 #define SET_DEV_CAPS(id, rqp) \
 119         {id, {.rqpacing = rqp} }
 120
 121 static const struct ark_dev_caps
 122 ark_device_caps[] = {
 123                      SET_DEV_CAPS(0x100d, true),
 124                      SET_DEV_CAPS(0x100e, true),
 125                      SET_DEV_CAPS(0x100f, true),
 126                      SET_DEV_CAPS(0x1010, false),
 127                      SET_DEV_CAPS(0x1017, true),
 128                      SET_DEV_CAPS(0x1018, true),
 129                      SET_DEV_CAPS(0x1019, true),
 130                      SET_DEV_CAPS(0x101e, false),
 131                      SET_DEV_CAPS(0x101f, false),
 132                      {.device_id = 0,}
 133 };
 134
 135 static int
 136 eth_ark_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
 137                 struct rte_pci_device *pci_dev)
 138 {
 139         struct rte_eth_dev *eth_dev;
 140         int ret;
 141
 142         eth_dev = rte_eth_dev_pci_allocate(pci_dev, sizeof(struct ark_adapter));
 143
 144         if (eth_dev == NULL)
 145                 return -ENOMEM;
 146
 147         ret = eth_ark_dev_init(eth_dev);
 148         if (ret)
 149                 rte_eth_dev_release_port(eth_dev);
 150
 151         return ret;
 152 }
 153
 154 static int
 155 eth_ark_pci_remove(struct rte_pci_device *pci_dev)
 156 {
 157         return rte_eth_dev_pci_generic_remove(pci_dev, eth_ark_dev_uninit);
 158 }
 159
 160 static struct rte_pci_driver rte_ark_pmd = {
 161         .id_table = pci_id_ark_map,
 162         .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC,
 163         .probe = eth_ark_pci_probe,
 164         .remove = eth_ark_pci_remove,
 165 };
 166
 167 static const struct eth_dev_ops ark_eth_dev_ops = {
 168         .dev_configure = eth_ark_dev_configure,
 169         .dev_start = eth_ark_dev_start,
 170         .dev_stop = eth_ark_dev_stop,
 171         .dev_close = eth_ark_dev_close,
 172
 173         .dev_infos_get = eth_ark_dev_info_get,
 174
 175         .rx_queue_setup = eth_ark_dev_rx_queue_setup,
 176         .tx_queue_setup = eth_ark_tx_queue_setup,
 177
 178         .link_update = eth_ark_dev_link_update,
 179         .dev_set_link_up = eth_ark_dev_set_link_up,
 180         .dev_set_link_down = eth_ark_dev_set_link_down,
 181
 182         .rx_queue_start = eth_ark_rx_start_queue,
 183         .rx_queue_stop = eth_ark_rx_stop_queue,
 184
 185         .tx_queue_start = eth_ark_tx_queue_start,
 186         .tx_queue_stop = eth_ark_tx_queue_stop,
 187
 188         .stats_get = eth_ark_dev_stats_get,
 189         .stats_reset = eth_ark_dev_stats_reset,
 190
 191         .mac_addr_add = eth_ark_macaddr_add,
 192         .mac_addr_remove = eth_ark_macaddr_remove,
 193         .mac_addr_set = eth_ark_set_default_mac_addr,
 194
 195         .mtu_set = eth_ark_set_mtu,
 196 };
 197
 198 static int
 199 check_for_ext(struct ark_adapter *ark)
 200 {
 201         int found = 0;
 202
 203         /* Get the env */
 204         const char *dllpath = getenv("ARK_EXT_PATH");
 205
 206         if (dllpath == NULL) {
 207                 ARK_PMD_LOG(DEBUG, "EXT NO dll path specified\n");
 208                 return 0;
 209         }
 210         ARK_PMD_LOG(NOTICE, "EXT found dll path at %s\n", dllpath);
 211
 212         /* Open and load the .so */
 213         ark->d_handle = dlopen(dllpath, RTLD_LOCAL | RTLD_LAZY);
 214         if (ark->d_handle == NULL) {
 215                 ARK_PMD_LOG(ERR, "Could not load user extension %s\n",
 216                             dllpath);
 217                 return -1;
 218         }
 219         ARK_PMD_LOG(DEBUG, "SUCCESS: loaded user extension %s\n",
 220                             dllpath);
 221
 222         /* Get the entry points */
 223         ark->user_ext.dev_init =
 224                 (void *(*)(struct rte_eth_dev *, void *, int))
 225                 dlsym(ark->d_handle, "rte_pmd_ark_dev_init");
 226         ARK_PMD_LOG(DEBUG, "device ext init pointer = %p\n",
 227                       ark->user_ext.dev_init);
 228         ark->user_ext.dev_get_port_count =
 229                 (int (*)(struct rte_eth_dev *, void *))
 230                 dlsym(ark->d_handle, "rte_pmd_ark_dev_get_port_count");
 231         ark->user_ext.dev_uninit =
 232                 (void (*)(struct rte_eth_dev *, void *))
 233                 dlsym(ark->d_handle, "rte_pmd_ark_dev_uninit");
 234         ark->user_ext.dev_configure =
 235                 (int (*)(struct rte_eth_dev *, void *))
 236                 dlsym(ark->d_handle, "rte_pmd_ark_dev_configure");
 237         ark->user_ext.dev_start =
 238                 (int (*)(struct rte_eth_dev *, void *))
 239                 dlsym(ark->d_handle, "rte_pmd_ark_dev_start");
 240         ark->user_ext.dev_stop =
 241                 (void (*)(struct rte_eth_dev *, void *))
 242                 dlsym(ark->d_handle, "rte_pmd_ark_dev_stop");
 243         ark->user_ext.dev_close =
 244                 (void (*)(struct rte_eth_dev *, void *))
 245                 dlsym(ark->d_handle, "rte_pmd_ark_dev_close");
 246         ark->user_ext.link_update =
 247                 (int (*)(struct rte_eth_dev *, int, void *))
 248                 dlsym(ark->d_handle, "rte_pmd_ark_link_update");
 249         ark->user_ext.dev_set_link_up =
 250                 (int (*)(struct rte_eth_dev *, void *))
 251                 dlsym(ark->d_handle, "rte_pmd_ark_dev_set_link_up");
 252         ark->user_ext.dev_set_link_down =
 253                 (int (*)(struct rte_eth_dev *, void *))
 254                 dlsym(ark->d_handle, "rte_pmd_ark_dev_set_link_down");
 255         ark->user_ext.stats_get =
 256                 (int (*)(struct rte_eth_dev *, struct rte_eth_stats *,
 257                           void *))
 258                 dlsym(ark->d_handle, "rte_pmd_ark_stats_get");
 259         ark->user_ext.stats_reset =
 260                 (void (*)(struct rte_eth_dev *, void *))
 261                 dlsym(ark->d_handle, "rte_pmd_ark_stats_reset");
 262         ark->user_ext.mac_addr_add =
 263                 (void (*)(struct rte_eth_dev *, struct rte_ether_addr *,
 264                         uint32_t, uint32_t, void *))
 265                 dlsym(ark->d_handle, "rte_pmd_ark_mac_addr_add");
 266         ark->user_ext.mac_addr_remove =
 267                 (void (*)(struct rte_eth_dev *, uint32_t, void *))
 268                 dlsym(ark->d_handle, "rte_pmd_ark_mac_addr_remove");
 269         ark->user_ext.mac_addr_set =
 270                 (void (*)(struct rte_eth_dev *, struct rte_ether_addr *,
 271                           void *))
 272                 dlsym(ark->d_handle, "rte_pmd_ark_mac_addr_set");
 273         ark->user_ext.set_mtu =
 274                 (int (*)(struct rte_eth_dev *, uint16_t,
 275                           void *))
 276                 dlsym(ark->d_handle, "rte_pmd_ark_set_mtu");
 277         ark->user_ext.rx_user_meta_hook =
 278                 (rx_user_meta_hook_fn)dlsym(ark->d_handle,
 279                                             "rte_pmd_ark_rx_user_meta_hook");
 280         ark->user_ext.tx_user_meta_hook =
 281                 (tx_user_meta_hook_fn)dlsym(ark->d_handle,
 282                                             "rte_pmd_ark_tx_user_meta_hook");
 283
 284         return found;
 285 }
 286
 287 static int
 288 eth_ark_dev_init(struct rte_eth_dev *dev)
 289 {
 290         struct ark_adapter *ark = dev->data->dev_private;
 291         struct rte_pci_device *pci_dev;
 292         int ret;
 293         int port_count = 1;
 294         int p;
 295         bool rqpacing = false;
 296
 297         ark->eth_dev = dev;
 298
 299         ARK_PMD_LOG(DEBUG, "\n");
 300
 301         /* Check to see if there is an extension that we need to load */
 302         ret = check_for_ext(ark);
 303         if (ret)
 304                 return ret;
 305
 306         pci_dev = RTE_ETH_DEV_TO_PCI(dev);
 307         rte_eth_copy_pci_info(dev, pci_dev);
 308         dev->data->dev_flags |= RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS;
 309
 310         p = 0;
 311         while (ark_device_caps[p].device_id != 0) {
 312                 if (pci_dev->id.device_id == ark_device_caps[p].device_id) {
 313                         rqpacing = ark_device_caps[p].caps.rqpacing;
 314                         break;
 315                 }
 316                 p++;
 317         }
 318
 319         /* Use dummy function until setup */
 320         dev->rx_pkt_burst = rte_eth_pkt_burst_dummy;
 321         dev->tx_pkt_burst = rte_eth_pkt_burst_dummy;
 322
 323         ark->bar0 = (uint8_t *)pci_dev->mem_resource[0].addr;
 324         ark->a_bar = (uint8_t *)pci_dev->mem_resource[2].addr;
 325
 326         ark->sysctrl.v  = (void *)&ark->bar0[ARK_SYSCTRL_BASE];
 327         ark->mpurx.v  = (void *)&ark->bar0[ARK_MPU_RX_BASE];
 328         ark->udm.v  = (void *)&ark->bar0[ARK_UDM_BASE];
 329         ark->mputx.v  = (void *)&ark->bar0[ARK_MPU_TX_BASE];
 330         ark->ddm.v  = (void *)&ark->bar0[ARK_DDM_BASE];
 331         ark->cmac.v  = (void *)&ark->bar0[ARK_CMAC_BASE];
 332         ark->external.v  = (void *)&ark->bar0[ARK_EXTERNAL_BASE];
 333         ark->pktdir.v  = (void *)&ark->bar0[ARK_PKTDIR_BASE];
 334         ark->pktgen.v  = (void *)&ark->bar0[ARK_PKTGEN_BASE];
 335         ark->pktchkr.v  = (void *)&ark->bar0[ARK_PKTCHKR_BASE];
 336
 337         if (rqpacing) {
 338                 ark->rqpacing =
 339                         (struct ark_rqpace_t *)(ark->bar0 + ARK_RCPACING_BASE);
 340         } else {
 341                 ark->rqpacing = NULL;
 342         }
 343         ark->started = 0;
 344         ark->pkt_dir_v = ARK_PKT_DIR_INIT_VAL;
 345
 346         ARK_PMD_LOG(INFO, "Sys Ctrl Const = 0x%x  HW Commit_ID: %08x\n",
 347                       ark->sysctrl.t32[4],
 348                       rte_be_to_cpu_32(ark->sysctrl.t32[0x20 / 4]));
 349         ARK_PMD_LOG(NOTICE, "Arkville HW Commit_ID: %08x\n",
 350                     rte_be_to_cpu_32(ark->sysctrl.t32[0x20 / 4]));
 351
 352         /* If HW sanity test fails, return an error */
 353         if (ark->sysctrl.t32[4] != 0xcafef00d) {
 354                 ARK_PMD_LOG(ERR,
 355                             "HW Sanity test has failed, expected constant"
 356                             " 0x%x, read 0x%x (%s)\n",
 357                             0xcafef00d,
 358                             ark->sysctrl.t32[4], __func__);
 359                 return -1;
 360         }
 361         if (ark->sysctrl.t32[3] != 0) {
 362                 if (ark->rqpacing) {
 363                         if (ark_rqp_lasped(ark->rqpacing)) {
 364                                 ARK_PMD_LOG(ERR, "Arkville Evaluation System - "
 365                                             "Timer has Expired\n");
 366                                 return -1;
 367                         }
 368                         ARK_PMD_LOG(WARNING, "Arkville Evaluation System - "
 369                                     "Timer is Running\n");
 370                 }
 371         }
 372
 373         ARK_PMD_LOG(DEBUG,
 374                     "HW Sanity test has PASSED, expected constant"
 375                     " 0x%x, read 0x%x (%s)\n",
 376                     0xcafef00d, ark->sysctrl.t32[4], __func__);
 377
 378         /* We are a single function multi-port device. */
 379         ret = ark_config_device(dev);
 380         if (ret)
 381                 return -1;
 382
 383         dev->dev_ops = &ark_eth_dev_ops;
 384         dev->rx_queue_count = eth_ark_dev_rx_queue_count;
 385
 386         dev->data->mac_addrs = rte_zmalloc("ark", RTE_ETHER_ADDR_LEN, 0);
 387         if (!dev->data->mac_addrs) {
 388                 ARK_PMD_LOG(ERR,
 389                             "Failed to allocated memory for storing mac address"
 390                             );
 391         }
 392
 393         if (ark->user_ext.dev_init) {
 394                 ark->user_data[dev->data->port_id] =
 395                         ark->user_ext.dev_init(dev, ark->a_bar, 0);
 396                 if (!ark->user_data[dev->data->port_id]) {
 397                         ARK_PMD_LOG(WARNING,
 398                                     "Failed to initialize PMD extension!"
 399                                     " continuing without it\n");
 400                         memset(&ark->user_ext, 0, sizeof(struct ark_user_ext));
 401                         dlclose(ark->d_handle);
 402                 }
 403         }
 404
 405         if (pci_dev->device.devargs)
 406                 ret = eth_ark_check_args(ark, pci_dev->device.devargs->args);
 407         else
 408                 ARK_PMD_LOG(INFO, "No Device args found\n");
 409
 410         if (ret)
 411                 goto error;
 412         /*
 413          * We will create additional devices based on the number of requested
 414          * ports
 415          */
 416         if (ark->user_ext.dev_get_port_count)
 417                 port_count =
 418                         ark->user_ext.dev_get_port_count(dev,
 419                                  ark->user_data[dev->data->port_id]);
 420         ark->num_ports = port_count;
 421
 422         for (p = 0; p < port_count; p++) {
 423                 struct rte_eth_dev *eth_dev;
 424                 char name[RTE_ETH_NAME_MAX_LEN];
 425
 426                 snprintf(name, sizeof(name), "arketh%d",
 427                          dev->data->port_id + p);
 428
 429                 if (p == 0) {
 430                         /* First port is already allocated by DPDK */
 431                         eth_dev = ark->eth_dev;
 432                         rte_eth_dev_probing_finish(eth_dev);
 433                         continue;
 434                 }
 435
 436                 /* reserve an ethdev entry */
 437                 eth_dev = rte_eth_dev_allocate(name);
 438                 if (!eth_dev) {
 439                         ARK_PMD_LOG(ERR,
 440                                     "Could not allocate eth_dev for port %d\n",
 441                                     p);
 442                         goto error;
 443                 }
 444
 445                 eth_dev->device = &pci_dev->device;
 446                 eth_dev->data->dev_private = ark;
 447                 eth_dev->dev_ops = ark->eth_dev->dev_ops;
 448                 eth_dev->tx_pkt_burst = ark->eth_dev->tx_pkt_burst;
 449                 eth_dev->rx_pkt_burst = ark->eth_dev->rx_pkt_burst;
 450
 451                 rte_eth_copy_pci_info(eth_dev, pci_dev);
 452                 eth_dev->data->dev_flags |= RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS;
 453
 454                 eth_dev->data->mac_addrs = rte_zmalloc(name,
 455                                                 RTE_ETHER_ADDR_LEN, 0);
 456                 if (!eth_dev->data->mac_addrs) {
 457                         ARK_PMD_LOG(ERR,
 458                                     "Memory allocation for MAC failed!"
 459                                     " Exiting.\n");
 460                         goto error;
 461                 }
 462
 463                 if (ark->user_ext.dev_init) {
 464                         ark->user_data[eth_dev->data->port_id] =
 465                                 ark->user_ext.dev_init(dev, ark->a_bar, p);
 466                 }
 467
 468                 rte_eth_dev_probing_finish(eth_dev);
 469         }
 470
 471         return ret;
 472
 473 error:
 474         rte_free(dev->data->mac_addrs);
 475         dev->data->mac_addrs = NULL;
 476         return -1;
 477 }
 478
 479 /*
 480  *Initial device configuration when device is opened
 481  * setup the DDM, and UDM
 482  * Called once per PCIE device
 483  */
 484 static int
 485 ark_config_device(struct rte_eth_dev *dev)
 486 {
 487         struct ark_adapter *ark = dev->data->dev_private;
 488         uint16_t num_q, i;
 489         struct ark_mpu_t *mpu;
 490
 491         /*
 492          * Make sure that the packet director, generator and checker are in a
 493          * known state
 494          */
 495         ark->start_pg = 0;
 496         ark->pg = ark_pktgen_init(ark->pktgen.v, 0, 1);
 497         if (ark->pg == NULL)
 498                 return -1;
 499         ark_pktgen_reset(ark->pg);
 500         ark->pc = ark_pktchkr_init(ark->pktchkr.v, 0, 1);
 501         if (ark->pc == NULL)
 502                 return -1;
 503         ark_pktchkr_stop(ark->pc);
 504         ark->pd = ark_pktdir_init(ark->pktdir.v);
 505         if (ark->pd == NULL)
 506                 return -1;
 507
 508         /* Verify HW */
 509         if (ark_udm_verify(ark->udm.v))
 510                 return -1;
 511         if (ark_ddm_verify(ark->ddm.v))
 512                 return -1;
 513
 514         /* UDM */
 515         if (ark_udm_reset(ark->udm.v)) {
 516                 ARK_PMD_LOG(ERR, "Unable to stop and reset UDM\n");
 517                 return -1;
 518         }
 519         /* Keep in reset until the MPU are cleared */
 520
 521         /* MPU reset */
 522         mpu = ark->mpurx.v;
 523         num_q = ark_api_num_queues(mpu);
 524         ark->rx_queues = num_q;
 525         for (i = 0; i < num_q; i++) {
 526                 ark_mpu_reset(mpu);
 527                 mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 528         }
 529
 530         /* TX -- DDM */
 531         if (ark_ddm_stop(ark->ddm.v, 1))
 532                 ARK_PMD_LOG(ERR, "Unable to stop DDM\n");
 533
 534         mpu = ark->mputx.v;
 535         num_q = ark_api_num_queues(mpu);
 536         ark->tx_queues = num_q;
 537         for (i = 0; i < num_q; i++) {
 538                 ark_mpu_reset(mpu);
 539                 mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 540         }
 541
 542         ark_ddm_reset(ark->ddm.v);
 543         ark_ddm_stats_reset(ark->ddm.v);
 544
 545         ark_ddm_stop(ark->ddm.v, 0);
 546         if (ark->rqpacing)
 547                 ark_rqp_stats_reset(ark->rqpacing);
 548
 549         return 0;
 550 }
 551
 552 static int
 553 eth_ark_dev_uninit(struct rte_eth_dev *dev)
 554 {
 555         struct ark_adapter *ark = dev->data->dev_private;
 556
 557         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 558                 return 0;
 559
 560         if (ark->user_ext.dev_uninit)
 561                 ark->user_ext.dev_uninit(dev,
 562                          ark->user_data[dev->data->port_id]);
 563
 564         ark_pktgen_uninit(ark->pg);
 565         ark_pktchkr_uninit(ark->pc);
 566
 567         return 0;
 568 }
 569
 570 static int
 571 eth_ark_dev_configure(struct rte_eth_dev *dev)
 572 {
 573         struct ark_adapter *ark = dev->data->dev_private;
 574
 575         eth_ark_dev_set_link_up(dev);
 576         if (ark->user_ext.dev_configure)
 577                 return ark->user_ext.dev_configure(dev,
 578                            ark->user_data[dev->data->port_id]);
 579         return 0;
 580 }
 581
 582 static int
 583 eth_ark_dev_start(struct rte_eth_dev *dev)
 584 {
 585         struct ark_adapter *ark = dev->data->dev_private;
 586         int i;
 587
 588         /* RX Side */
 589         /* start UDM */
 590         ark_udm_start(ark->udm.v);
 591
 592         for (i = 0; i < dev->data->nb_rx_queues; i++)
 593                 eth_ark_rx_start_queue(dev, i);
 594
 595         /* TX Side */
 596         for (i = 0; i < dev->data->nb_tx_queues; i++)
 597                 eth_ark_tx_queue_start(dev, i);
 598
 599         /* start DDM */
 600         ark_ddm_start(ark->ddm.v);
 601
 602         ark->started = 1;
 603         /* set xmit and receive function */
 604         dev->rx_pkt_burst = &eth_ark_recv_pkts;
 605         dev->tx_pkt_burst = &eth_ark_xmit_pkts;
 606
 607         if (ark->start_pg)
 608                 ark_pktchkr_run(ark->pc);
 609
 610         if (ark->start_pg && (dev->data->port_id == 0)) {
 611                 pthread_t thread;
 612
 613                 /* Delay packet generatpr start allow the hardware to be ready
 614                  * This is only used for sanity checking with internal generator
 615                  */
 616                 if (rte_ctrl_thread_create(&thread, "ark-delay-pg", NULL,
 617                                            ark_pktgen_delay_start, ark->pg)) {
 618                         ARK_PMD_LOG(ERR, "Could not create pktgen "
 619                                     "starter thread\n");
 620                         return -1;
 621                 }
 622         }
 623
 624         if (ark->user_ext.dev_start)
 625                 ark->user_ext.dev_start(dev,
 626                         ark->user_data[dev->data->port_id]);
 627
 628         return 0;
 629 }
 630
 631 static int
 632 eth_ark_dev_stop(struct rte_eth_dev *dev)
 633 {
 634         uint16_t i;
 635         int status;
 636         struct ark_adapter *ark = dev->data->dev_private;
 637         struct ark_mpu_t *mpu;
 638
 639         if (ark->started == 0)
 640                 return 0;
 641         ark->started = 0;
 642         dev->data->dev_started = 0;
 643
 644         /* Stop the extension first */
 645         if (ark->user_ext.dev_stop)
 646                 ark->user_ext.dev_stop(dev,
 647                        ark->user_data[dev->data->port_id]);
 648
 649         /* Stop the packet generator */
 650         if (ark->start_pg)
 651                 ark_pktgen_pause(ark->pg);
 652
 653         dev->rx_pkt_burst = rte_eth_pkt_burst_dummy;
 654         dev->tx_pkt_burst = rte_eth_pkt_burst_dummy;
 655
 656         /* STOP TX Side */
 657         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 658                 status = eth_ark_tx_queue_stop(dev, i);
 659                 if (status != 0) {
 660                         uint16_t port = dev->data->port_id;
 661                         ARK_PMD_LOG(ERR,
 662                                     "tx_queue stop anomaly"
 663                                     " port %u, queue %u\n",
 664                                     port, i);
 665                 }
 666         }
 667
 668         /* Stop DDM */
 669         /* Wait up to 0.1 second.  each stop is up to 1000 * 10 useconds */
 670         for (i = 0; i < 10; i++) {
 671                 status = ark_ddm_stop(ark->ddm.v, 1);
 672                 if (status == 0)
 673                         break;
 674         }
 675         if (status || i != 0) {
 676                 ARK_PMD_LOG(ERR, "DDM stop anomaly. status:"
 677                             " %d iter: %u. (%s)\n",
 678                             status,
 679                             i,
 680                             __func__);
 681                 ark_ddm_dump(ark->ddm.v, "Stop anomaly");
 682
 683                 mpu = ark->mputx.v;
 684                 for (i = 0; i < ark->tx_queues; i++) {
 685                         ark_mpu_dump(mpu, "DDM failure dump", i);
 686                         mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 687                 }
 688         }
 689
 690         /* STOP RX Side */
 691         /* Stop UDM  multiple tries attempted */
 692         for (i = 0; i < 10; i++) {
 693                 status = ark_udm_stop(ark->udm.v, 1);
 694                 if (status == 0)
 695                         break;
 696         }
 697         if (status || i != 0) {
 698                 ARK_PMD_LOG(ERR, "UDM stop anomaly. status %d iter: %u. (%s)\n",
 699                             status, i, __func__);
 700                 ark_udm_dump(ark->udm.v, "Stop anomaly");
 701
 702                 mpu = ark->mpurx.v;
 703                 for (i = 0; i < ark->rx_queues; i++) {
 704                         ark_mpu_dump(mpu, "UDM Stop anomaly", i);
 705                         mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 706                 }
 707         }
 708
 709         ark_udm_dump_stats(ark->udm.v, "Post stop");
 710         ark_udm_dump_perf(ark->udm.v, "Post stop");
 711
 712         for (i = 0; i < dev->data->nb_rx_queues; i++)
 713                 eth_ark_rx_dump_queue(dev, i, __func__);
 714
 715         /* Stop the packet checker if it is running */
 716         if (ark->start_pg) {
 717                 ark_pktchkr_dump_stats(ark->pc);
 718                 ark_pktchkr_stop(ark->pc);
 719         }
 720
 721         return 0;
 722 }
 723
 724 static int
 725 eth_ark_dev_close(struct rte_eth_dev *dev)
 726 {
 727         struct ark_adapter *ark = dev->data->dev_private;
 728         uint16_t i;
 729
 730         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 731                 return 0;
 732
 733         if (ark->user_ext.dev_close)
 734                 ark->user_ext.dev_close(dev,
 735                  ark->user_data[dev->data->port_id]);
 736
 737         eth_ark_dev_stop(dev);
 738         eth_ark_udm_force_close(dev);
 739
 740         /*
 741          * TODO This should only be called once for the device during shutdown
 742          */
 743         if (ark->rqpacing)
 744                 ark_rqp_dump(ark->rqpacing);
 745
 746         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 747                 eth_ark_tx_queue_release(dev->data->tx_queues[i]);
 748                 dev->data->tx_queues[i] = 0;
 749         }
 750
 751         for (i = 0; i < dev->data->nb_rx_queues; i++) {
 752                 eth_ark_dev_rx_queue_release(dev->data->rx_queues[i]);
 753                 dev->data->rx_queues[i] = 0;
 754         }
 755
 756         return 0;
 757 }
 758
 759 static int
 760 eth_ark_dev_info_get(struct rte_eth_dev *dev,
 761                      struct rte_eth_dev_info *dev_info)
 762 {
 763         struct ark_adapter *ark = dev->data->dev_private;
 764         struct ark_mpu_t *tx_mpu = RTE_PTR_ADD(ark->bar0, ARK_MPU_TX_BASE);
 765         struct ark_mpu_t *rx_mpu = RTE_PTR_ADD(ark->bar0, ARK_MPU_RX_BASE);
 766         uint16_t ports = ark->num_ports;
 767
 768         dev_info->max_rx_pktlen = ARK_RX_MAX_PKT_LEN;
 769         dev_info->min_rx_bufsize = ARK_RX_MIN_BUFSIZE;
 770
 771         dev_info->max_rx_queues = ark_api_num_queues_per_port(rx_mpu, ports);
 772         dev_info->max_tx_queues = ark_api_num_queues_per_port(tx_mpu, ports);
 773
 774         dev_info->rx_desc_lim = (struct rte_eth_desc_lim) {
 775                 .nb_max = ARK_RX_MAX_QUEUE,
 776                 .nb_min = ARK_RX_MIN_QUEUE,
 777                 .nb_align = ARK_RX_MIN_QUEUE}; /* power of 2 */
 778
 779         dev_info->tx_desc_lim = (struct rte_eth_desc_lim) {
 780                 .nb_max = ARK_TX_MAX_QUEUE,
 781                 .nb_min = ARK_TX_MIN_QUEUE,
 782                 .nb_align = ARK_TX_MIN_QUEUE}; /* power of 2 */
 783
 784         /* ARK PMD supports all line rates, how do we indicate that here ?? */
 785         dev_info->speed_capa = (RTE_ETH_LINK_SPEED_1G |
 786                                 RTE_ETH_LINK_SPEED_10G |
 787                                 RTE_ETH_LINK_SPEED_25G |
 788                                 RTE_ETH_LINK_SPEED_40G |
 789                                 RTE_ETH_LINK_SPEED_50G |
 790                                 RTE_ETH_LINK_SPEED_100G);
 791
 792         dev_info->rx_offload_capa = RTE_ETH_RX_OFFLOAD_TIMESTAMP;
 793
 794         return 0;
 795 }
 796
 797 static int
 798 eth_ark_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 799 {
 800         ARK_PMD_LOG(DEBUG, "link status = %d\n",
 801                         dev->data->dev_link.link_status);
 802         struct ark_adapter *ark = dev->data->dev_private;
 803
 804         if (ark->user_ext.link_update) {
 805                 return ark->user_ext.link_update
 806                         (dev, wait_to_complete,
 807                          ark->user_data[dev->data->port_id]);
 808         }
 809         return 0;
 810 }
 811
 812 static int
 813 eth_ark_dev_set_link_up(struct rte_eth_dev *dev)
 814 {
 815         dev->data->dev_link.link_status = 1;
 816         struct ark_adapter *ark = dev->data->dev_private;
 817
 818         if (ark->user_ext.dev_set_link_up)
 819                 return ark->user_ext.dev_set_link_up(dev,
 820                              ark->user_data[dev->data->port_id]);
 821         return 0;
 822 }
 823
 824 static int
 825 eth_ark_dev_set_link_down(struct rte_eth_dev *dev)
 826 {
 827         dev->data->dev_link.link_status = 0;
 828         struct ark_adapter *ark = dev->data->dev_private;
 829
 830         if (ark->user_ext.dev_set_link_down)
 831                 return ark->user_ext.dev_set_link_down(dev,
 832                        ark->user_data[dev->data->port_id]);
 833         return 0;
 834 }
 835
 836 static int
 837 eth_ark_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 838 {
 839         uint16_t i;
 840         struct ark_adapter *ark = dev->data->dev_private;
 841
 842         stats->ipackets = 0;
 843         stats->ibytes = 0;
 844         stats->opackets = 0;
 845         stats->obytes = 0;
 846         stats->imissed = 0;
 847         stats->oerrors = 0;
 848
 849         for (i = 0; i < dev->data->nb_tx_queues; i++)
 850                 eth_tx_queue_stats_get(dev->data->tx_queues[i], stats);
 851         for (i = 0; i < dev->data->nb_rx_queues; i++)
 852                 eth_rx_queue_stats_get(dev->data->rx_queues[i], stats);
 853         if (ark->user_ext.stats_get)
 854                 return ark->user_ext.stats_get(dev, stats,
 855                         ark->user_data[dev->data->port_id]);
 856         return 0;
 857 }
 858
 859 static int
 860 eth_ark_dev_stats_reset(struct rte_eth_dev *dev)
 861 {
 862         uint16_t i;
 863         struct ark_adapter *ark = dev->data->dev_private;
 864
 865         for (i = 0; i < dev->data->nb_tx_queues; i++)
 866                 eth_tx_queue_stats_reset(dev->data->tx_queues[i]);
 867         for (i = 0; i < dev->data->nb_rx_queues; i++)
 868                 eth_rx_queue_stats_reset(dev->data->rx_queues[i]);
 869         if (ark->user_ext.stats_reset)
 870                 ark->user_ext.stats_reset(dev,
 871                           ark->user_data[dev->data->port_id]);
 872
 873         return 0;
 874 }
 875
 876 static int
 877 eth_ark_macaddr_add(struct rte_eth_dev *dev,
 878                     struct rte_ether_addr *mac_addr,
 879                     uint32_t index,
 880                     uint32_t pool)
 881 {
 882         struct ark_adapter *ark = dev->data->dev_private;
 883
 884         if (ark->user_ext.mac_addr_add) {
 885                 ark->user_ext.mac_addr_add(dev,
 886                                            mac_addr,
 887                                            index,
 888                                            pool,
 889                            ark->user_data[dev->data->port_id]);
 890                 return 0;
 891         }
 892         return -ENOTSUP;
 893 }
 894
 895 static void
 896 eth_ark_macaddr_remove(struct rte_eth_dev *dev, uint32_t index)
 897 {
 898         struct ark_adapter *ark = dev->data->dev_private;
 899
 900         if (ark->user_ext.mac_addr_remove)
 901                 ark->user_ext.mac_addr_remove(dev, index,
 902                               ark->user_data[dev->data->port_id]);
 903 }
 904
 905 static int
 906 eth_ark_set_default_mac_addr(struct rte_eth_dev *dev,
 907                              struct rte_ether_addr *mac_addr)
 908 {
 909         struct ark_adapter *ark = dev->data->dev_private;
 910
 911         if (ark->user_ext.mac_addr_set) {
 912                 ark->user_ext.mac_addr_set(dev, mac_addr,
 913                            ark->user_data[dev->data->port_id]);
 914                 return 0;
 915         }
 916         return -ENOTSUP;
 917 }
 918
 919 static int
 920 eth_ark_set_mtu(struct rte_eth_dev *dev, uint16_t  size)
 921 {
 922         struct ark_adapter *ark = dev->data->dev_private;
 923
 924         if (ark->user_ext.set_mtu)
 925                 return ark->user_ext.set_mtu(dev, size,
 926                              ark->user_data[dev->data->port_id]);
 927
 928         return -ENOTSUP;
 929 }
 930
 931 static inline int
 932 process_pktdir_arg(const char *key, const char *value,
 933                    void *extra_args)
 934 {
 935         ARK_PMD_LOG(DEBUG, "key = %s, value = %s\n",
 936                     key, value);
 937         struct ark_adapter *ark =
 938                 (struct ark_adapter *)extra_args;
 939
 940         ark->pkt_dir_v = strtol(value, NULL, 16);
 941         ARK_PMD_LOG(DEBUG, "pkt_dir_v = 0x%x\n", ark->pkt_dir_v);
 942         return 0;
 943 }
 944
 945 static inline int
 946 process_file_args(const char *key, const char *value, void *extra_args)
 947 {
 948         ARK_PMD_LOG(DEBUG, "key = %s, value = %s\n",
 949                     key, value);
 950         char *args = (char *)extra_args;
 951
 952         /* Open the configuration file */
 953         FILE *file = fopen(value, "r");
 954         char line[ARK_MAX_ARG_LEN];
 955         int  size = 0;
 956         int first = 1;
 957
 958         if (file == NULL) {
 959                 ARK_PMD_LOG(ERR, "Unable to open "
 960                             "config file %s\n", value);
 961                 return -1;
 962         }
 963
 964         while (fgets(line, sizeof(line), file)) {
 965                 size += strlen(line);
 966                 if (size >= ARK_MAX_ARG_LEN) {
 967                         ARK_PMD_LOG(ERR, "Unable to parse file %s args, "
 968                                     "parameter list is too long\n", value);
 969                         fclose(file);
 970                         return -1;
 971                 }
 972                 if (first) {
 973                         strncpy(args, line, ARK_MAX_ARG_LEN);
 974                         first = 0;
 975                 } else {
 976                         strncat(args, line, ARK_MAX_ARG_LEN);
 977                 }
 978         }
 979         ARK_PMD_LOG(DEBUG, "file = %s\n", args);
 980         fclose(file);
 981         return 0;
 982 }
 983
 984 static int
 985 eth_ark_check_args(struct ark_adapter *ark, const char *params)
 986 {
 987         struct rte_kvargs *kvlist;
 988         unsigned int k_idx;
 989         struct rte_kvargs_pair *pair = NULL;
 990         int ret = -1;
 991
 992         kvlist = rte_kvargs_parse(params, valid_arguments);
 993         if (kvlist == NULL)
 994                 return 0;
 995
 996         ark->pkt_gen_args[0] = 0;
 997         ark->pkt_chkr_args[0] = 0;
 998
 999         for (k_idx = 0; k_idx < kvlist->count; k_idx++) {
1000                 pair = &kvlist->pairs[k_idx];
1001                 ARK_PMD_LOG(DEBUG, "**** Arg passed to PMD = %s:%s\n",
1002                              pair->key,
1003                              pair->value);
1004         }
1005
1006         if (rte_kvargs_process(kvlist,
1007                                ARK_PKTDIR_ARG,
1008                                &process_pktdir_arg,
1009                                ark) != 0) {
1010                 ARK_PMD_LOG(ERR, "Unable to parse arg %s\n", ARK_PKTDIR_ARG);
1011                 goto free_kvlist;
1012         }
1013
1014         if (rte_kvargs_process(kvlist,
1015                                ARK_PKTGEN_ARG,
1016                                &process_file_args,
1017                                ark->pkt_gen_args) != 0) {
1018                 ARK_PMD_LOG(ERR, "Unable to parse arg %s\n", ARK_PKTGEN_ARG);
1019                 goto free_kvlist;
1020         }
1021
1022         if (rte_kvargs_process(kvlist,
1023                                ARK_PKTCHKR_ARG,
1024                                &process_file_args,
1025                                ark->pkt_chkr_args) != 0) {
1026                 ARK_PMD_LOG(ERR, "Unable to parse arg %s\n", ARK_PKTCHKR_ARG);
1027                 goto free_kvlist;
1028         }
1029
1030         ARK_PMD_LOG(INFO, "packet director set to 0x%x\n", ark->pkt_dir_v);
1031         /* Setup the packet director */
1032         ark_pktdir_setup(ark->pd, ark->pkt_dir_v);
1033
1034         /* Setup the packet generator */
1035         if (ark->pkt_gen_args[0]) {
1036                 ARK_PMD_LOG(DEBUG, "Setting up the packet generator\n");
1037                 ark_pktgen_parse(ark->pkt_gen_args);
1038                 ark_pktgen_reset(ark->pg);
1039                 ark_pktgen_setup(ark->pg);
1040                 ark->start_pg = 1;
1041         }
1042
1043         /* Setup the packet checker */
1044         if (ark->pkt_chkr_args[0]) {
1045                 ark_pktchkr_parse(ark->pkt_chkr_args);
1046                 ark_pktchkr_setup(ark->pc);
1047         }
1048
1049         ret = 0;
1050
1051 free_kvlist:
1052         rte_kvargs_free(kvlist);
1053
1054         return ret;
1055 }
1056
1057 RTE_PMD_REGISTER_PCI(net_ark, rte_ark_pmd);
1058 RTE_PMD_REGISTER_KMOD_DEP(net_ark, "* igb_uio | uio_pci_generic ");
1059 RTE_PMD_REGISTER_PCI_TABLE(net_ark, pci_id_ark_map);
1060 RTE_PMD_REGISTER_PARAM_STRING(net_ark,
1061                               ARK_PKTGEN_ARG "=<filename> "
1062                               ARK_PKTCHKR_ARG "=<filename> "
1063                               ARK_PKTDIR_ARG "=<bitmap>");
1064 RTE_LOG_REGISTER_DEFAULT(ark_logtype, NOTICE);