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_running = 0;
 497         ark->pg = ark_pktgen_init(ark->pktgen.v, 0, 1);
 498         if (ark->pg == NULL)
 499                 return -1;
 500         ark_pktgen_reset(ark->pg);
 501         ark->pc = ark_pktchkr_init(ark->pktchkr.v, 0, 1);
 502         if (ark->pc == NULL)
 503                 return -1;
 504         ark_pktchkr_stop(ark->pc);
 505         ark->pd = ark_pktdir_init(ark->pktdir.v);
 506         if (ark->pd == NULL)
 507                 return -1;
 508
 509         /* Verify HW */
 510         if (ark_udm_verify(ark->udm.v))
 511                 return -1;
 512         if (ark_ddm_verify(ark->ddm.v))
 513                 return -1;
 514
 515         /* UDM */
 516         if (ark_udm_reset(ark->udm.v)) {
 517                 ARK_PMD_LOG(ERR, "Unable to stop and reset UDM\n");
 518                 return -1;
 519         }
 520         /* Keep in reset until the MPU are cleared */
 521
 522         /* MPU reset */
 523         mpu = ark->mpurx.v;
 524         num_q = ark_api_num_queues(mpu);
 525         ark->rx_queues = num_q;
 526         for (i = 0; i < num_q; i++) {
 527                 ark_mpu_reset(mpu);
 528                 mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 529         }
 530
 531         /* TX -- DDM */
 532         if (ark_ddm_stop(ark->ddm.v, 1))
 533                 ARK_PMD_LOG(ERR, "Unable to stop DDM\n");
 534
 535         mpu = ark->mputx.v;
 536         num_q = ark_api_num_queues(mpu);
 537         ark->tx_queues = num_q;
 538         for (i = 0; i < num_q; i++) {
 539                 ark_mpu_reset(mpu);
 540                 mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 541         }
 542
 543         ark_ddm_reset(ark->ddm.v);
 544         ark_ddm_stats_reset(ark->ddm.v);
 545
 546         ark_ddm_stop(ark->ddm.v, 0);
 547         if (ark->rqpacing)
 548                 ark_rqp_stats_reset(ark->rqpacing);
 549
 550         return 0;
 551 }
 552
 553 static int
 554 eth_ark_dev_uninit(struct rte_eth_dev *dev)
 555 {
 556         struct ark_adapter *ark = dev->data->dev_private;
 557
 558         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 559                 return 0;
 560
 561         if (ark->user_ext.dev_uninit)
 562                 ark->user_ext.dev_uninit(dev,
 563                          ark->user_data[dev->data->port_id]);
 564
 565         ark_pktgen_uninit(ark->pg);
 566         ark_pktchkr_uninit(ark->pc);
 567
 568         return 0;
 569 }
 570
 571 static int
 572 eth_ark_dev_configure(struct rte_eth_dev *dev)
 573 {
 574         struct ark_adapter *ark = dev->data->dev_private;
 575
 576         eth_ark_dev_set_link_up(dev);
 577         if (ark->user_ext.dev_configure)
 578                 return ark->user_ext.dev_configure(dev,
 579                            ark->user_data[dev->data->port_id]);
 580         return 0;
 581 }
 582
 583 static int
 584 eth_ark_dev_start(struct rte_eth_dev *dev)
 585 {
 586         struct ark_adapter *ark = dev->data->dev_private;
 587         int i;
 588
 589         /* RX Side */
 590         /* start UDM */
 591         ark_udm_start(ark->udm.v);
 592
 593         for (i = 0; i < dev->data->nb_rx_queues; i++)
 594                 eth_ark_rx_start_queue(dev, i);
 595
 596         /* TX Side */
 597         for (i = 0; i < dev->data->nb_tx_queues; i++)
 598                 eth_ark_tx_queue_start(dev, i);
 599
 600         /* start DDM */
 601         ark_ddm_start(ark->ddm.v);
 602
 603         ark->started = 1;
 604         /* set xmit and receive function */
 605         dev->rx_pkt_burst = &eth_ark_recv_pkts;
 606         dev->tx_pkt_burst = &eth_ark_xmit_pkts;
 607
 608         if (ark->start_pg)
 609                 ark_pktchkr_run(ark->pc);
 610
 611         if (ark->start_pg && !ark->pg_running) {
 612                 pthread_t thread;
 613
 614                 /* Delay packet generatpr start allow the hardware to be ready
 615                  * This is only used for sanity checking with internal generator
 616                  */
 617                 char tname[32];
 618                 snprintf(tname, sizeof(tname), "ark-delay-pg-%d",
 619                          dev->data->port_id);
 620
 621                 if (rte_ctrl_thread_create(&thread, tname, NULL,
 622                                            ark_pktgen_delay_start, ark->pg)) {
 623                         ARK_PMD_LOG(ERR, "Could not create pktgen "
 624                                     "starter thread\n");
 625                         return -1;
 626                 }
 627                 ark->pg_running = 1;
 628         }
 629
 630         if (ark->user_ext.dev_start)
 631                 ark->user_ext.dev_start(dev,
 632                         ark->user_data[dev->data->port_id]);
 633
 634         return 0;
 635 }
 636
 637 static int
 638 eth_ark_dev_stop(struct rte_eth_dev *dev)
 639 {
 640         uint16_t i;
 641         int status;
 642         struct ark_adapter *ark = dev->data->dev_private;
 643         struct ark_mpu_t *mpu;
 644
 645         if (ark->started == 0)
 646                 return 0;
 647         ark->started = 0;
 648         dev->data->dev_started = 0;
 649
 650         /* Stop the extension first */
 651         if (ark->user_ext.dev_stop)
 652                 ark->user_ext.dev_stop(dev,
 653                        ark->user_data[dev->data->port_id]);
 654
 655         /* Stop the packet generator */
 656         if (ark->start_pg && ark->pg_running) {
 657                 ark_pktgen_pause(ark->pg);
 658                 ark->pg_running = 0;
 659         }
 660
 661         dev->rx_pkt_burst = rte_eth_pkt_burst_dummy;
 662         dev->tx_pkt_burst = rte_eth_pkt_burst_dummy;
 663
 664         /* STOP TX Side */
 665         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 666                 status = eth_ark_tx_queue_stop(dev, i);
 667                 if (status != 0) {
 668                         uint16_t port = dev->data->port_id;
 669                         ARK_PMD_LOG(ERR,
 670                                     "tx_queue stop anomaly"
 671                                     " port %u, queue %u\n",
 672                                     port, i);
 673                 }
 674         }
 675
 676         /* Stop DDM */
 677         /* Wait up to 0.1 second.  each stop is up to 1000 * 10 useconds */
 678         for (i = 0; i < 10; i++) {
 679                 status = ark_ddm_stop(ark->ddm.v, 1);
 680                 if (status == 0)
 681                         break;
 682         }
 683         if (status || i != 0) {
 684                 ARK_PMD_LOG(ERR, "DDM stop anomaly. status:"
 685                             " %d iter: %u. (%s)\n",
 686                             status,
 687                             i,
 688                             __func__);
 689                 ark_ddm_dump(ark->ddm.v, "Stop anomaly");
 690
 691                 mpu = ark->mputx.v;
 692                 for (i = 0; i < ark->tx_queues; i++) {
 693                         ark_mpu_dump(mpu, "DDM failure dump", i);
 694                         mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 695                 }
 696         }
 697
 698         /* STOP RX Side */
 699         /* Stop UDM  multiple tries attempted */
 700         for (i = 0; i < 10; i++) {
 701                 status = ark_udm_stop(ark->udm.v, 1);
 702                 if (status == 0)
 703                         break;
 704         }
 705         if (status || i != 0) {
 706                 ARK_PMD_LOG(ERR, "UDM stop anomaly. status %d iter: %u. (%s)\n",
 707                             status, i, __func__);
 708                 ark_udm_dump(ark->udm.v, "Stop anomaly");
 709
 710                 mpu = ark->mpurx.v;
 711                 for (i = 0; i < ark->rx_queues; i++) {
 712                         ark_mpu_dump(mpu, "UDM Stop anomaly", i);
 713                         mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 714                 }
 715         }
 716
 717         ark_udm_dump_stats(ark->udm.v, "Post stop");
 718         ark_udm_dump_perf(ark->udm.v, "Post stop");
 719
 720         for (i = 0; i < dev->data->nb_rx_queues; i++)
 721                 eth_ark_rx_dump_queue(dev, i, __func__);
 722
 723         /* Stop the packet checker if it is running */
 724         if (ark->start_pg) {
 725                 ark_pktchkr_dump_stats(ark->pc);
 726                 ark_pktchkr_stop(ark->pc);
 727         }
 728
 729         return 0;
 730 }
 731
 732 static int
 733 eth_ark_dev_close(struct rte_eth_dev *dev)
 734 {
 735         struct ark_adapter *ark = dev->data->dev_private;
 736         uint16_t i;
 737
 738         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 739                 return 0;
 740
 741         if (ark->user_ext.dev_close)
 742                 ark->user_ext.dev_close(dev,
 743                  ark->user_data[dev->data->port_id]);
 744
 745         eth_ark_dev_stop(dev);
 746         eth_ark_udm_force_close(dev);
 747
 748         /*
 749          * TODO This should only be called once for the device during shutdown
 750          */
 751         if (ark->rqpacing)
 752                 ark_rqp_dump(ark->rqpacing);
 753
 754         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 755                 eth_ark_tx_queue_release(dev->data->tx_queues[i]);
 756                 dev->data->tx_queues[i] = 0;
 757         }
 758
 759         for (i = 0; i < dev->data->nb_rx_queues; i++) {
 760                 eth_ark_dev_rx_queue_release(dev->data->rx_queues[i]);
 761                 dev->data->rx_queues[i] = 0;
 762         }
 763
 764         return 0;
 765 }
 766
 767 static int
 768 eth_ark_dev_info_get(struct rte_eth_dev *dev,
 769                      struct rte_eth_dev_info *dev_info)
 770 {
 771         struct ark_adapter *ark = dev->data->dev_private;
 772         struct ark_mpu_t *tx_mpu = RTE_PTR_ADD(ark->bar0, ARK_MPU_TX_BASE);
 773         struct ark_mpu_t *rx_mpu = RTE_PTR_ADD(ark->bar0, ARK_MPU_RX_BASE);
 774         uint16_t ports = ark->num_ports;
 775
 776         dev_info->max_rx_pktlen = ARK_RX_MAX_PKT_LEN;
 777         dev_info->min_rx_bufsize = ARK_RX_MIN_BUFSIZE;
 778
 779         dev_info->max_rx_queues = ark_api_num_queues_per_port(rx_mpu, ports);
 780         dev_info->max_tx_queues = ark_api_num_queues_per_port(tx_mpu, ports);
 781
 782         dev_info->rx_desc_lim = (struct rte_eth_desc_lim) {
 783                 .nb_max = ARK_RX_MAX_QUEUE,
 784                 .nb_min = ARK_RX_MIN_QUEUE,
 785                 .nb_align = ARK_RX_MIN_QUEUE}; /* power of 2 */
 786
 787         dev_info->tx_desc_lim = (struct rte_eth_desc_lim) {
 788                 .nb_max = ARK_TX_MAX_QUEUE,
 789                 .nb_min = ARK_TX_MIN_QUEUE,
 790                 .nb_align = ARK_TX_MIN_QUEUE}; /* power of 2 */
 791
 792         /* ARK PMD supports all line rates, how do we indicate that here ?? */
 793         dev_info->speed_capa = (RTE_ETH_LINK_SPEED_1G |
 794                                 RTE_ETH_LINK_SPEED_10G |
 795                                 RTE_ETH_LINK_SPEED_25G |
 796                                 RTE_ETH_LINK_SPEED_40G |
 797                                 RTE_ETH_LINK_SPEED_50G |
 798                                 RTE_ETH_LINK_SPEED_100G);
 799
 800         dev_info->rx_offload_capa = RTE_ETH_RX_OFFLOAD_TIMESTAMP;
 801
 802         return 0;
 803 }
 804
 805 static int
 806 eth_ark_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 807 {
 808         ARK_PMD_LOG(DEBUG, "link status = %d\n",
 809                         dev->data->dev_link.link_status);
 810         struct ark_adapter *ark = dev->data->dev_private;
 811
 812         if (ark->user_ext.link_update) {
 813                 return ark->user_ext.link_update
 814                         (dev, wait_to_complete,
 815                          ark->user_data[dev->data->port_id]);
 816         }
 817         return 0;
 818 }
 819
 820 static int
 821 eth_ark_dev_set_link_up(struct rte_eth_dev *dev)
 822 {
 823         dev->data->dev_link.link_status = 1;
 824         struct ark_adapter *ark = dev->data->dev_private;
 825
 826         if (ark->user_ext.dev_set_link_up)
 827                 return ark->user_ext.dev_set_link_up(dev,
 828                              ark->user_data[dev->data->port_id]);
 829         return 0;
 830 }
 831
 832 static int
 833 eth_ark_dev_set_link_down(struct rte_eth_dev *dev)
 834 {
 835         dev->data->dev_link.link_status = 0;
 836         struct ark_adapter *ark = dev->data->dev_private;
 837
 838         if (ark->user_ext.dev_set_link_down)
 839                 return ark->user_ext.dev_set_link_down(dev,
 840                        ark->user_data[dev->data->port_id]);
 841         return 0;
 842 }
 843
 844 static int
 845 eth_ark_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 846 {
 847         uint16_t i;
 848         struct ark_adapter *ark = dev->data->dev_private;
 849
 850         stats->ipackets = 0;
 851         stats->ibytes = 0;
 852         stats->opackets = 0;
 853         stats->obytes = 0;
 854         stats->imissed = 0;
 855         stats->oerrors = 0;
 856
 857         for (i = 0; i < dev->data->nb_tx_queues; i++)
 858                 eth_tx_queue_stats_get(dev->data->tx_queues[i], stats);
 859         for (i = 0; i < dev->data->nb_rx_queues; i++)
 860                 eth_rx_queue_stats_get(dev->data->rx_queues[i], stats);
 861         if (ark->user_ext.stats_get)
 862                 return ark->user_ext.stats_get(dev, stats,
 863                         ark->user_data[dev->data->port_id]);
 864         return 0;
 865 }
 866
 867 static int
 868 eth_ark_dev_stats_reset(struct rte_eth_dev *dev)
 869 {
 870         uint16_t i;
 871         struct ark_adapter *ark = dev->data->dev_private;
 872
 873         for (i = 0; i < dev->data->nb_tx_queues; i++)
 874                 eth_tx_queue_stats_reset(dev->data->tx_queues[i]);
 875         for (i = 0; i < dev->data->nb_rx_queues; i++)
 876                 eth_rx_queue_stats_reset(dev->data->rx_queues[i]);
 877         if (ark->user_ext.stats_reset)
 878                 ark->user_ext.stats_reset(dev,
 879                           ark->user_data[dev->data->port_id]);
 880
 881         return 0;
 882 }
 883
 884 static int
 885 eth_ark_macaddr_add(struct rte_eth_dev *dev,
 886                     struct rte_ether_addr *mac_addr,
 887                     uint32_t index,
 888                     uint32_t pool)
 889 {
 890         struct ark_adapter *ark = dev->data->dev_private;
 891
 892         if (ark->user_ext.mac_addr_add) {
 893                 ark->user_ext.mac_addr_add(dev,
 894                                            mac_addr,
 895                                            index,
 896                                            pool,
 897                            ark->user_data[dev->data->port_id]);
 898                 return 0;
 899         }
 900         return -ENOTSUP;
 901 }
 902
 903 static void
 904 eth_ark_macaddr_remove(struct rte_eth_dev *dev, uint32_t index)
 905 {
 906         struct ark_adapter *ark = dev->data->dev_private;
 907
 908         if (ark->user_ext.mac_addr_remove)
 909                 ark->user_ext.mac_addr_remove(dev, index,
 910                               ark->user_data[dev->data->port_id]);
 911 }
 912
 913 static int
 914 eth_ark_set_default_mac_addr(struct rte_eth_dev *dev,
 915                              struct rte_ether_addr *mac_addr)
 916 {
 917         struct ark_adapter *ark = dev->data->dev_private;
 918
 919         if (ark->user_ext.mac_addr_set) {
 920                 ark->user_ext.mac_addr_set(dev, mac_addr,
 921                            ark->user_data[dev->data->port_id]);
 922                 return 0;
 923         }
 924         return -ENOTSUP;
 925 }
 926
 927 static int
 928 eth_ark_set_mtu(struct rte_eth_dev *dev, uint16_t  size)
 929 {
 930         struct ark_adapter *ark = dev->data->dev_private;
 931
 932         if (ark->user_ext.set_mtu)
 933                 return ark->user_ext.set_mtu(dev, size,
 934                              ark->user_data[dev->data->port_id]);
 935
 936         return -ENOTSUP;
 937 }
 938
 939 static inline int
 940 process_pktdir_arg(const char *key, const char *value,
 941                    void *extra_args)
 942 {
 943         ARK_PMD_LOG(DEBUG, "key = %s, value = %s\n",
 944                     key, value);
 945         struct ark_adapter *ark =
 946                 (struct ark_adapter *)extra_args;
 947
 948         ark->pkt_dir_v = strtol(value, NULL, 16);
 949         ARK_PMD_LOG(DEBUG, "pkt_dir_v = 0x%x\n", ark->pkt_dir_v);
 950         return 0;
 951 }
 952
 953 static inline int
 954 process_file_args(const char *key, const char *value, void *extra_args)
 955 {
 956         ARK_PMD_LOG(DEBUG, "key = %s, value = %s\n",
 957                     key, value);
 958         char *args = (char *)extra_args;
 959
 960         /* Open the configuration file */
 961         FILE *file = fopen(value, "r");
 962         char line[ARK_MAX_ARG_LEN];
 963         int  size = 0;
 964         int first = 1;
 965
 966         if (file == NULL) {
 967                 ARK_PMD_LOG(ERR, "Unable to open "
 968                             "config file %s\n", value);
 969                 return -1;
 970         }
 971
 972         while (fgets(line, sizeof(line), file)) {
 973                 size += strlen(line);
 974                 if (size >= ARK_MAX_ARG_LEN) {
 975                         ARK_PMD_LOG(ERR, "Unable to parse file %s args, "
 976                                     "parameter list is too long\n", value);
 977                         fclose(file);
 978                         return -1;
 979                 }
 980                 if (first) {
 981                         strncpy(args, line, ARK_MAX_ARG_LEN);
 982                         first = 0;
 983                 } else {
 984                         strncat(args, line, ARK_MAX_ARG_LEN);
 985                 }
 986         }
 987         ARK_PMD_LOG(DEBUG, "file = %s\n", args);
 988         fclose(file);
 989         return 0;
 990 }
 991
 992 static int
 993 eth_ark_check_args(struct ark_adapter *ark, const char *params)
 994 {
 995         struct rte_kvargs *kvlist;
 996         unsigned int k_idx;
 997         struct rte_kvargs_pair *pair = NULL;
 998         int ret = -1;
 999
1000         kvlist = rte_kvargs_parse(params, valid_arguments);
1001         if (kvlist == NULL)
1002                 return 0;
1003
1004         ark->pkt_gen_args[0] = 0;
1005         ark->pkt_chkr_args[0] = 0;
1006
1007         for (k_idx = 0; k_idx < kvlist->count; k_idx++) {
1008                 pair = &kvlist->pairs[k_idx];
1009                 ARK_PMD_LOG(DEBUG, "**** Arg passed to PMD = %s:%s\n",
1010                              pair->key,
1011                              pair->value);
1012         }
1013
1014         if (rte_kvargs_process(kvlist,
1015                                ARK_PKTDIR_ARG,
1016                                &process_pktdir_arg,
1017                                ark) != 0) {
1018                 ARK_PMD_LOG(ERR, "Unable to parse arg %s\n", ARK_PKTDIR_ARG);
1019                 goto free_kvlist;
1020         }
1021
1022         if (rte_kvargs_process(kvlist,
1023                                ARK_PKTGEN_ARG,
1024                                &process_file_args,
1025                                ark->pkt_gen_args) != 0) {
1026                 ARK_PMD_LOG(ERR, "Unable to parse arg %s\n", ARK_PKTGEN_ARG);
1027                 goto free_kvlist;
1028         }
1029
1030         if (rte_kvargs_process(kvlist,
1031                                ARK_PKTCHKR_ARG,
1032                                &process_file_args,
1033                                ark->pkt_chkr_args) != 0) {
1034                 ARK_PMD_LOG(ERR, "Unable to parse arg %s\n", ARK_PKTCHKR_ARG);
1035                 goto free_kvlist;
1036         }
1037
1038         ARK_PMD_LOG(INFO, "packet director set to 0x%x\n", ark->pkt_dir_v);
1039         /* Setup the packet director */
1040         ark_pktdir_setup(ark->pd, ark->pkt_dir_v);
1041
1042         /* Setup the packet generator */
1043         if (ark->pkt_gen_args[0]) {
1044                 ARK_PMD_LOG(DEBUG, "Setting up the packet generator\n");
1045                 ark_pktgen_parse(ark->pkt_gen_args);
1046                 ark_pktgen_reset(ark->pg);
1047                 ark_pktgen_setup(ark->pg);
1048                 ark->start_pg = 1;
1049         }
1050
1051         /* Setup the packet checker */
1052         if (ark->pkt_chkr_args[0]) {
1053                 ark_pktchkr_parse(ark->pkt_chkr_args);
1054                 ark_pktchkr_setup(ark->pc);
1055         }
1056
1057         ret = 0;
1058
1059 free_kvlist:
1060         rte_kvargs_free(kvlist);
1061
1062         return ret;
1063 }
1064
1065 RTE_PMD_REGISTER_PCI(net_ark, rte_ark_pmd);
1066 RTE_PMD_REGISTER_KMOD_DEP(net_ark, "* igb_uio | uio_pci_generic ");
1067 RTE_PMD_REGISTER_PCI_TABLE(net_ark, pci_id_ark_map);
1068 RTE_PMD_REGISTER_PARAM_STRING(net_ark,
1069                               ARK_PKTGEN_ARG "=<filename> "
1070                               ARK_PKTCHKR_ARG "=<filename> "
1071                               ARK_PKTDIR_ARG "=<bitmap>");
1072 RTE_LOG_REGISTER_DEFAULT(ark_logtype, NOTICE);