drivers/net/ark/ark_ethdev.c

   1 /*-
   2  * BSD LICENSE
   3  *
   4  * Copyright (c) 2015-2017 Atomic Rules LLC
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  *
  11  * * Redistributions of source code must retain the above copyright
  12  * notice, this list of conditions and the following disclaimer.
  13  * * Redistributions in binary form must reproduce the above copyright
  14  * notice, this list of conditions and the following disclaimer in
  15  * the documentation and/or other materials provided with the
  16  * distribution.
  17  * * Neither the name of copyright holder nor the names of its
  18  * contributors may be used to endorse or promote products derived
  19  * from this software without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #include <unistd.h>
  35 #include <sys/stat.h>
  36 #include <dlfcn.h>
  37
  38 #include <rte_ethdev_pci.h>
  39 #include <rte_kvargs.h>
  40
  41 #include "ark_global.h"
  42 #include "ark_logs.h"
  43 #include "ark_ethdev_tx.h"
  44 #include "ark_ethdev_rx.h"
  45 #include "ark_mpu.h"
  46 #include "ark_ddm.h"
  47 #include "ark_udm.h"
  48 #include "ark_rqp.h"
  49 #include "ark_pktdir.h"
  50 #include "ark_pktgen.h"
  51 #include "ark_pktchkr.h"
  52
  53 /*  Internal prototypes */
  54 static int eth_ark_check_args(struct ark_adapter *ark, const char *params);
  55 static int eth_ark_dev_init(struct rte_eth_dev *dev);
  56 static int ark_config_device(struct rte_eth_dev *dev);
  57 static int eth_ark_dev_uninit(struct rte_eth_dev *eth_dev);
  58 static int eth_ark_dev_configure(struct rte_eth_dev *dev);
  59 static int eth_ark_dev_start(struct rte_eth_dev *dev);
  60 static void eth_ark_dev_stop(struct rte_eth_dev *dev);
  61 static void eth_ark_dev_close(struct rte_eth_dev *dev);
  62 static void eth_ark_dev_info_get(struct rte_eth_dev *dev,
  63                                  struct rte_eth_dev_info *dev_info);
  64 static int eth_ark_dev_link_update(struct rte_eth_dev *dev,
  65                                    int wait_to_complete);
  66 static int eth_ark_dev_set_link_up(struct rte_eth_dev *dev);
  67 static int eth_ark_dev_set_link_down(struct rte_eth_dev *dev);
  68 static int eth_ark_dev_stats_get(struct rte_eth_dev *dev,
  69                                   struct rte_eth_stats *stats);
  70 static void eth_ark_dev_stats_reset(struct rte_eth_dev *dev);
  71 static void eth_ark_set_default_mac_addr(struct rte_eth_dev *dev,
  72                                          struct ether_addr *mac_addr);
  73 static int eth_ark_macaddr_add(struct rte_eth_dev *dev,
  74                                struct ether_addr *mac_addr,
  75                                uint32_t index,
  76                                uint32_t pool);
  77 static void eth_ark_macaddr_remove(struct rte_eth_dev *dev,
  78                                    uint32_t index);
  79 static int  eth_ark_set_mtu(struct rte_eth_dev *dev, uint16_t size);
  80
  81 /*
  82  * The packet generator is a functional block used to generate packet
  83  * patterns for testing.  It is not intended for nominal use.
  84  */
  85 #define ARK_PKTGEN_ARG "Pkt_gen"
  86
  87 /*
  88  * The packet checker is a functional block used to verify packet
  89  * patterns for testing.  It is not intended for nominal use.
  90  */
  91 #define ARK_PKTCHKR_ARG "Pkt_chkr"
  92
  93 /*
  94  * The packet director is used to select the internal ingress and
  95  * egress packets paths during testing.  It is not intended for
  96  * nominal use.
  97  */
  98 #define ARK_PKTDIR_ARG "Pkt_dir"
  99
 100 /* Devinfo configurations */
 101 #define ARK_RX_MAX_QUEUE (4096 * 4)
 102 #define ARK_RX_MIN_QUEUE (512)
 103 #define ARK_RX_MAX_PKT_LEN ((16 * 1024) - 128)
 104 #define ARK_RX_MIN_BUFSIZE (1024)
 105
 106 #define ARK_TX_MAX_QUEUE (4096 * 4)
 107 #define ARK_TX_MIN_QUEUE (256)
 108
 109 static const char * const valid_arguments[] = {
 110         ARK_PKTGEN_ARG,
 111         ARK_PKTCHKR_ARG,
 112         ARK_PKTDIR_ARG,
 113         NULL
 114 };
 115
 116 static const struct rte_pci_id pci_id_ark_map[] = {
 117         {RTE_PCI_DEVICE(0x1d6c, 0x100d)},
 118         {RTE_PCI_DEVICE(0x1d6c, 0x100e)},
 119         {.vendor_id = 0, /* sentinel */ },
 120 };
 121
 122 static int
 123 eth_ark_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
 124                 struct rte_pci_device *pci_dev)
 125 {
 126         struct rte_eth_dev *eth_dev;
 127         int ret;
 128
 129         eth_dev = rte_eth_dev_pci_allocate(pci_dev, sizeof(struct ark_adapter));
 130
 131         if (eth_dev == NULL)
 132                 return -ENOMEM;
 133
 134         ret = eth_ark_dev_init(eth_dev);
 135         if (ret)
 136                 rte_eth_dev_pci_release(eth_dev);
 137
 138         return ret;
 139 }
 140
 141 static int
 142 eth_ark_pci_remove(struct rte_pci_device *pci_dev)
 143 {
 144         return rte_eth_dev_pci_generic_remove(pci_dev, eth_ark_dev_uninit);
 145 }
 146
 147 static struct rte_pci_driver rte_ark_pmd = {
 148         .id_table = pci_id_ark_map,
 149         .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC,
 150         .probe = eth_ark_pci_probe,
 151         .remove = eth_ark_pci_remove,
 152 };
 153
 154 static const struct eth_dev_ops ark_eth_dev_ops = {
 155         .dev_configure = eth_ark_dev_configure,
 156         .dev_start = eth_ark_dev_start,
 157         .dev_stop = eth_ark_dev_stop,
 158         .dev_close = eth_ark_dev_close,
 159
 160         .dev_infos_get = eth_ark_dev_info_get,
 161
 162         .rx_queue_setup = eth_ark_dev_rx_queue_setup,
 163         .rx_queue_count = eth_ark_dev_rx_queue_count,
 164         .tx_queue_setup = eth_ark_tx_queue_setup,
 165
 166         .link_update = eth_ark_dev_link_update,
 167         .dev_set_link_up = eth_ark_dev_set_link_up,
 168         .dev_set_link_down = eth_ark_dev_set_link_down,
 169
 170         .rx_queue_start = eth_ark_rx_start_queue,
 171         .rx_queue_stop = eth_ark_rx_stop_queue,
 172
 173         .tx_queue_start = eth_ark_tx_queue_start,
 174         .tx_queue_stop = eth_ark_tx_queue_stop,
 175
 176         .stats_get = eth_ark_dev_stats_get,
 177         .stats_reset = eth_ark_dev_stats_reset,
 178
 179         .mac_addr_add = eth_ark_macaddr_add,
 180         .mac_addr_remove = eth_ark_macaddr_remove,
 181         .mac_addr_set = eth_ark_set_default_mac_addr,
 182
 183         .mtu_set = eth_ark_set_mtu,
 184 };
 185
 186 static int
 187 check_for_ext(struct ark_adapter *ark)
 188 {
 189         int found = 0;
 190
 191         /* Get the env */
 192         const char *dllpath = getenv("ARK_EXT_PATH");
 193
 194         if (dllpath == NULL) {
 195                 PMD_DEBUG_LOG(DEBUG, "ARK EXT NO dll path specified\n");
 196                 return 0;
 197         }
 198         PMD_DRV_LOG(INFO, "ARK EXT found dll path at %s\n", dllpath);
 199
 200         /* Open and load the .so */
 201         ark->d_handle = dlopen(dllpath, RTLD_LOCAL | RTLD_LAZY);
 202         if (ark->d_handle == NULL) {
 203                 PMD_DRV_LOG(ERR, "Could not load user extension %s\n",
 204                             dllpath);
 205                 return -1;
 206         }
 207         PMD_DRV_LOG(INFO, "SUCCESS: loaded user extension %s\n",
 208                             dllpath);
 209
 210         /* Get the entry points */
 211         ark->user_ext.dev_init =
 212                 (void *(*)(struct rte_eth_dev *, void *, int))
 213                 dlsym(ark->d_handle, "dev_init");
 214         PMD_DEBUG_LOG(DEBUG, "device ext init pointer = %p\n",
 215                       ark->user_ext.dev_init);
 216         ark->user_ext.dev_get_port_count =
 217                 (int (*)(struct rte_eth_dev *, void *))
 218                 dlsym(ark->d_handle, "dev_get_port_count");
 219         ark->user_ext.dev_uninit =
 220                 (void (*)(struct rte_eth_dev *, void *))
 221                 dlsym(ark->d_handle, "dev_uninit");
 222         ark->user_ext.dev_configure =
 223                 (int (*)(struct rte_eth_dev *, void *))
 224                 dlsym(ark->d_handle, "dev_configure");
 225         ark->user_ext.dev_start =
 226                 (int (*)(struct rte_eth_dev *, void *))
 227                 dlsym(ark->d_handle, "dev_start");
 228         ark->user_ext.dev_stop =
 229                 (void (*)(struct rte_eth_dev *, void *))
 230                 dlsym(ark->d_handle, "dev_stop");
 231         ark->user_ext.dev_close =
 232                 (void (*)(struct rte_eth_dev *, void *))
 233                 dlsym(ark->d_handle, "dev_close");
 234         ark->user_ext.link_update =
 235                 (int (*)(struct rte_eth_dev *, int, void *))
 236                 dlsym(ark->d_handle, "link_update");
 237         ark->user_ext.dev_set_link_up =
 238                 (int (*)(struct rte_eth_dev *, void *))
 239                 dlsym(ark->d_handle, "dev_set_link_up");
 240         ark->user_ext.dev_set_link_down =
 241                 (int (*)(struct rte_eth_dev *, void *))
 242                 dlsym(ark->d_handle, "dev_set_link_down");
 243         ark->user_ext.stats_get =
 244                 (int (*)(struct rte_eth_dev *, struct rte_eth_stats *,
 245                           void *))
 246                 dlsym(ark->d_handle, "stats_get");
 247         ark->user_ext.stats_reset =
 248                 (void (*)(struct rte_eth_dev *, void *))
 249                 dlsym(ark->d_handle, "stats_reset");
 250         ark->user_ext.mac_addr_add =
 251                 (void (*)(struct rte_eth_dev *, struct ether_addr *, uint32_t,
 252                           uint32_t, void *))
 253                 dlsym(ark->d_handle, "mac_addr_add");
 254         ark->user_ext.mac_addr_remove =
 255                 (void (*)(struct rte_eth_dev *, uint32_t, void *))
 256                 dlsym(ark->d_handle, "mac_addr_remove");
 257         ark->user_ext.mac_addr_set =
 258                 (void (*)(struct rte_eth_dev *, struct ether_addr *,
 259                           void *))
 260                 dlsym(ark->d_handle, "mac_addr_set");
 261         ark->user_ext.set_mtu =
 262                 (int (*)(struct rte_eth_dev *, uint16_t,
 263                           void *))
 264                 dlsym(ark->d_handle, "set_mtu");
 265
 266         return found;
 267 }
 268
 269 static int
 270 eth_ark_dev_init(struct rte_eth_dev *dev)
 271 {
 272         struct ark_adapter *ark =
 273                 (struct ark_adapter *)dev->data->dev_private;
 274         struct rte_pci_device *pci_dev;
 275         int ret;
 276         int port_count = 1;
 277         int p;
 278
 279         ark->eth_dev = dev;
 280
 281         PMD_FUNC_LOG(DEBUG, "\n");
 282
 283         /* Check to see if there is an extension that we need to load */
 284         ret = check_for_ext(ark);
 285         if (ret)
 286                 return ret;
 287         pci_dev = RTE_ETH_DEV_TO_PCI(dev);
 288         rte_eth_copy_pci_info(dev, pci_dev);
 289
 290         /* Use dummy function until setup */
 291         dev->rx_pkt_burst = &eth_ark_recv_pkts_noop;
 292         dev->tx_pkt_burst = &eth_ark_xmit_pkts_noop;
 293
 294         ark->bar0 = (uint8_t *)pci_dev->mem_resource[0].addr;
 295         ark->a_bar = (uint8_t *)pci_dev->mem_resource[2].addr;
 296
 297         ark->sysctrl.v  = (void *)&ark->bar0[ARK_SYSCTRL_BASE];
 298         ark->mpurx.v  = (void *)&ark->bar0[ARK_MPU_RX_BASE];
 299         ark->udm.v  = (void *)&ark->bar0[ARK_UDM_BASE];
 300         ark->mputx.v  = (void *)&ark->bar0[ARK_MPU_TX_BASE];
 301         ark->ddm.v  = (void *)&ark->bar0[ARK_DDM_BASE];
 302         ark->cmac.v  = (void *)&ark->bar0[ARK_CMAC_BASE];
 303         ark->external.v  = (void *)&ark->bar0[ARK_EXTERNAL_BASE];
 304         ark->pktdir.v  = (void *)&ark->bar0[ARK_PKTDIR_BASE];
 305         ark->pktgen.v  = (void *)&ark->bar0[ARK_PKTGEN_BASE];
 306         ark->pktchkr.v  = (void *)&ark->bar0[ARK_PKTCHKR_BASE];
 307
 308         ark->rqpacing =
 309                 (struct ark_rqpace_t *)(ark->bar0 + ARK_RCPACING_BASE);
 310         ark->started = 0;
 311
 312         PMD_DEBUG_LOG(INFO, "Sys Ctrl Const = 0x%x  HW Commit_ID: %08x\n",
 313                       ark->sysctrl.t32[4],
 314                       rte_be_to_cpu_32(ark->sysctrl.t32[0x20 / 4]));
 315         PMD_DRV_LOG(INFO, "Arkville HW Commit_ID: %08x\n",
 316                     rte_be_to_cpu_32(ark->sysctrl.t32[0x20 / 4]));
 317
 318         /* If HW sanity test fails, return an error */
 319         if (ark->sysctrl.t32[4] != 0xcafef00d) {
 320                 PMD_DRV_LOG(ERR,
 321                             "HW Sanity test has failed, expected constant"
 322                             " 0x%x, read 0x%x (%s)\n",
 323                             0xcafef00d,
 324                             ark->sysctrl.t32[4], __func__);
 325                 return -1;
 326         }
 327         if (ark->sysctrl.t32[3] != 0) {
 328                 if (ark_rqp_lasped(ark->rqpacing)) {
 329                         PMD_DRV_LOG(ERR, "Arkville Evaluation System - "
 330                                     "Timer has Expired\n");
 331                         return -1;
 332                 }
 333                 PMD_DRV_LOG(WARNING, "Arkville Evaluation System - "
 334                             "Timer is Running\n");
 335         }
 336
 337         PMD_DRV_LOG(INFO,
 338                     "HW Sanity test has PASSED, expected constant"
 339                     " 0x%x, read 0x%x (%s)\n",
 340                     0xcafef00d, ark->sysctrl.t32[4], __func__);
 341
 342         /* We are a single function multi-port device. */
 343         ret = ark_config_device(dev);
 344         dev->dev_ops = &ark_eth_dev_ops;
 345
 346         dev->data->mac_addrs = rte_zmalloc("ark", ETHER_ADDR_LEN, 0);
 347         if (!dev->data->mac_addrs) {
 348                 PMD_DRV_LOG(ERR,
 349                             "Failed to allocated memory for storing mac address"
 350                             );
 351         }
 352
 353         if (ark->user_ext.dev_init) {
 354                 ark->user_data[dev->data->port_id] =
 355                         ark->user_ext.dev_init(dev, ark->a_bar, 0);
 356                 if (!ark->user_data[dev->data->port_id]) {
 357                         PMD_DRV_LOG(INFO,
 358                                     "Failed to initialize PMD extension!"
 359                                     " continuing without it\n");
 360                         memset(&ark->user_ext, 0, sizeof(struct ark_user_ext));
 361                         dlclose(ark->d_handle);
 362                 }
 363         }
 364
 365         if (pci_dev->device.devargs)
 366                 ret = eth_ark_check_args(ark, pci_dev->device.devargs->args);
 367         else
 368                 PMD_DRV_LOG(INFO, "No Device args found\n");
 369
 370         if (ret)
 371                 goto error;
 372         /*
 373          * We will create additional devices based on the number of requested
 374          * ports
 375          */
 376         if (ark->user_ext.dev_get_port_count)
 377                 port_count =
 378                         ark->user_ext.dev_get_port_count(dev,
 379                                  ark->user_data[dev->data->port_id]);
 380         ark->num_ports = port_count;
 381
 382         for (p = 0; p < port_count; p++) {
 383                 struct rte_eth_dev *eth_dev;
 384                 char name[RTE_ETH_NAME_MAX_LEN];
 385
 386                 snprintf(name, sizeof(name), "arketh%d",
 387                          dev->data->port_id + p);
 388
 389                 if (p == 0) {
 390                         /* First port is already allocated by DPDK */
 391                         eth_dev = ark->eth_dev;
 392                         continue;
 393                 }
 394
 395                 /* reserve an ethdev entry */
 396                 eth_dev = rte_eth_dev_allocate(name);
 397                 if (!eth_dev) {
 398                         PMD_DRV_LOG(ERR,
 399                                     "Could not allocate eth_dev for port %d\n",
 400                                     p);
 401                         goto error;
 402                 }
 403
 404                 eth_dev->device = &pci_dev->device;
 405                 eth_dev->data->dev_private = ark;
 406                 eth_dev->dev_ops = ark->eth_dev->dev_ops;
 407                 eth_dev->tx_pkt_burst = ark->eth_dev->tx_pkt_burst;
 408                 eth_dev->rx_pkt_burst = ark->eth_dev->rx_pkt_burst;
 409
 410                 rte_eth_copy_pci_info(eth_dev, pci_dev);
 411
 412                 eth_dev->data->mac_addrs = rte_zmalloc(name, ETHER_ADDR_LEN, 0);
 413                 if (!eth_dev->data->mac_addrs) {
 414                         PMD_DRV_LOG(ERR,
 415                                     "Memory allocation for MAC failed!"
 416                                     " Exiting.\n");
 417                         goto error;
 418                 }
 419
 420                 if (ark->user_ext.dev_init) {
 421                         ark->user_data[eth_dev->data->port_id] =
 422                                 ark->user_ext.dev_init(dev, ark->a_bar, p);
 423                 }
 424         }
 425
 426         return ret;
 427
 428  error:
 429         if (dev->data->mac_addrs)
 430                 rte_free(dev->data->mac_addrs);
 431         return -1;
 432 }
 433
 434 /*
 435  *Initial device configuration when device is opened
 436  * setup the DDM, and UDM
 437  * Called once per PCIE device
 438  */
 439 static int
 440 ark_config_device(struct rte_eth_dev *dev)
 441 {
 442         struct ark_adapter *ark =
 443                 (struct ark_adapter *)dev->data->dev_private;
 444         uint16_t num_q, i;
 445         struct ark_mpu_t *mpu;
 446
 447         /*
 448          * Make sure that the packet director, generator and checker are in a
 449          * known state
 450          */
 451         ark->start_pg = 0;
 452         ark->pg = ark_pktgen_init(ark->pktgen.v, 0, 1);
 453         if (ark->pg == NULL)
 454                 return -1;
 455         ark_pktgen_reset(ark->pg);
 456         ark->pc = ark_pktchkr_init(ark->pktchkr.v, 0, 1);
 457         if (ark->pc == NULL)
 458                 return -1;
 459         ark_pktchkr_stop(ark->pc);
 460         ark->pd = ark_pktdir_init(ark->pktdir.v);
 461         if (ark->pd == NULL)
 462                 return -1;
 463
 464         /* Verify HW */
 465         if (ark_udm_verify(ark->udm.v))
 466                 return -1;
 467         if (ark_ddm_verify(ark->ddm.v))
 468                 return -1;
 469
 470         /* UDM */
 471         if (ark_udm_reset(ark->udm.v)) {
 472                 PMD_DRV_LOG(ERR, "Unable to stop and reset UDM\n");
 473                 return -1;
 474         }
 475         /* Keep in reset until the MPU are cleared */
 476
 477         /* MPU reset */
 478         mpu = ark->mpurx.v;
 479         num_q = ark_api_num_queues(mpu);
 480         ark->rx_queues = num_q;
 481         for (i = 0; i < num_q; i++) {
 482                 ark_mpu_reset(mpu);
 483                 mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 484         }
 485
 486         ark_udm_stop(ark->udm.v, 0);
 487         ark_udm_configure(ark->udm.v,
 488                           RTE_PKTMBUF_HEADROOM,
 489                           RTE_MBUF_DEFAULT_DATAROOM,
 490                           ARK_RX_WRITE_TIME_NS);
 491         ark_udm_stats_reset(ark->udm.v);
 492         ark_udm_stop(ark->udm.v, 0);
 493
 494         /* TX -- DDM */
 495         if (ark_ddm_stop(ark->ddm.v, 1))
 496                 PMD_DRV_LOG(ERR, "Unable to stop DDM\n");
 497
 498         mpu = ark->mputx.v;
 499         num_q = ark_api_num_queues(mpu);
 500         ark->tx_queues = num_q;
 501         for (i = 0; i < num_q; i++) {
 502                 ark_mpu_reset(mpu);
 503                 mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 504         }
 505
 506         ark_ddm_reset(ark->ddm.v);
 507         ark_ddm_stats_reset(ark->ddm.v);
 508
 509         ark_ddm_stop(ark->ddm.v, 0);
 510         ark_rqp_stats_reset(ark->rqpacing);
 511
 512         return 0;
 513 }
 514
 515 static int
 516 eth_ark_dev_uninit(struct rte_eth_dev *dev)
 517 {
 518         struct ark_adapter *ark =
 519                 (struct ark_adapter *)dev->data->dev_private;
 520
 521         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 522                 return 0;
 523
 524         if (ark->user_ext.dev_uninit)
 525                 ark->user_ext.dev_uninit(dev,
 526                          ark->user_data[dev->data->port_id]);
 527
 528         ark_pktgen_uninit(ark->pg);
 529         ark_pktchkr_uninit(ark->pc);
 530
 531         dev->dev_ops = NULL;
 532         dev->rx_pkt_burst = NULL;
 533         dev->tx_pkt_burst = NULL;
 534         rte_free(dev->data->mac_addrs);
 535         return 0;
 536 }
 537
 538 static int
 539 eth_ark_dev_configure(struct rte_eth_dev *dev)
 540 {
 541         PMD_FUNC_LOG(DEBUG, "\n");
 542         struct ark_adapter *ark =
 543                 (struct ark_adapter *)dev->data->dev_private;
 544
 545         eth_ark_dev_set_link_up(dev);
 546         if (ark->user_ext.dev_configure)
 547                 return ark->user_ext.dev_configure(dev,
 548                            ark->user_data[dev->data->port_id]);
 549         return 0;
 550 }
 551
 552 static void *
 553 delay_pg_start(void *arg)
 554 {
 555         struct ark_adapter *ark = (struct ark_adapter *)arg;
 556
 557         /* This function is used exclusively for regression testing, We
 558          * perform a blind sleep here to ensure that the external test
 559          * application has time to setup the test before we generate packets
 560          */
 561         usleep(100000);
 562         ark_pktgen_run(ark->pg);
 563         return NULL;
 564 }
 565
 566 static int
 567 eth_ark_dev_start(struct rte_eth_dev *dev)
 568 {
 569         struct ark_adapter *ark =
 570                 (struct ark_adapter *)dev->data->dev_private;
 571         int i;
 572
 573         PMD_FUNC_LOG(DEBUG, "\n");
 574
 575         /* RX Side */
 576         /* start UDM */
 577         ark_udm_start(ark->udm.v);
 578
 579         for (i = 0; i < dev->data->nb_rx_queues; i++)
 580                 eth_ark_rx_start_queue(dev, i);
 581
 582         /* TX Side */
 583         for (i = 0; i < dev->data->nb_tx_queues; i++)
 584                 eth_ark_tx_queue_start(dev, i);
 585
 586         /* start DDM */
 587         ark_ddm_start(ark->ddm.v);
 588
 589         ark->started = 1;
 590         /* set xmit and receive function */
 591         dev->rx_pkt_burst = &eth_ark_recv_pkts;
 592         dev->tx_pkt_burst = &eth_ark_xmit_pkts;
 593
 594         if (ark->start_pg)
 595                 ark_pktchkr_run(ark->pc);
 596
 597         if (ark->start_pg && (dev->data->port_id == 0)) {
 598                 pthread_t thread;
 599
 600                 /* Delay packet generatpr start allow the hardware to be ready
 601                  * This is only used for sanity checking with internal generator
 602                  */
 603                 if (pthread_create(&thread, NULL, delay_pg_start, ark)) {
 604                         PMD_DRV_LOG(ERR, "Could not create pktgen "
 605                                     "starter thread\n");
 606                         return -1;
 607                 }
 608         }
 609
 610         if (ark->user_ext.dev_start)
 611                 ark->user_ext.dev_start(dev,
 612                         ark->user_data[dev->data->port_id]);
 613
 614         return 0;
 615 }
 616
 617 static void
 618 eth_ark_dev_stop(struct rte_eth_dev *dev)
 619 {
 620         uint16_t i;
 621         int status;
 622         struct ark_adapter *ark =
 623                 (struct ark_adapter *)dev->data->dev_private;
 624         struct ark_mpu_t *mpu;
 625
 626         PMD_FUNC_LOG(DEBUG, "\n");
 627
 628         if (ark->started == 0)
 629                 return;
 630         ark->started = 0;
 631
 632         /* Stop the extension first */
 633         if (ark->user_ext.dev_stop)
 634                 ark->user_ext.dev_stop(dev,
 635                        ark->user_data[dev->data->port_id]);
 636
 637         /* Stop the packet generator */
 638         if (ark->start_pg)
 639                 ark_pktgen_pause(ark->pg);
 640
 641         dev->rx_pkt_burst = &eth_ark_recv_pkts_noop;
 642         dev->tx_pkt_burst = &eth_ark_xmit_pkts_noop;
 643
 644         /* STOP TX Side */
 645         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 646                 status = eth_ark_tx_queue_stop(dev, i);
 647                 if (status != 0) {
 648                         uint16_t port = dev->data->port_id;
 649                         PMD_DRV_LOG(ERR,
 650                                     "tx_queue stop anomaly"
 651                                     " port %u, queue %u\n",
 652                                     port, i);
 653                 }
 654         }
 655
 656         /* Stop DDM */
 657         /* Wait up to 0.1 second.  each stop is up to 1000 * 10 useconds */
 658         for (i = 0; i < 10; i++) {
 659                 status = ark_ddm_stop(ark->ddm.v, 1);
 660                 if (status == 0)
 661                         break;
 662         }
 663         if (status || i != 0) {
 664                 PMD_DRV_LOG(ERR, "DDM stop anomaly. status:"
 665                             " %d iter: %u. (%s)\n",
 666                             status,
 667                             i,
 668                             __func__);
 669                 ark_ddm_dump(ark->ddm.v, "Stop anomaly");
 670
 671                 mpu = ark->mputx.v;
 672                 for (i = 0; i < ark->tx_queues; i++) {
 673                         ark_mpu_dump(mpu, "DDM failure dump", i);
 674                         mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 675                 }
 676         }
 677
 678         /* STOP RX Side */
 679         /* Stop UDM  multiple tries attempted */
 680         for (i = 0; i < 10; i++) {
 681                 status = ark_udm_stop(ark->udm.v, 1);
 682                 if (status == 0)
 683                         break;
 684         }
 685         if (status || i != 0) {
 686                 PMD_DRV_LOG(ERR, "UDM stop anomaly. status %d iter: %u. (%s)\n",
 687                             status, i, __func__);
 688                 ark_udm_dump(ark->udm.v, "Stop anomaly");
 689
 690                 mpu = ark->mpurx.v;
 691                 for (i = 0; i < ark->rx_queues; i++) {
 692                         ark_mpu_dump(mpu, "UDM Stop anomaly", i);
 693                         mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 694                 }
 695         }
 696
 697         ark_udm_dump_stats(ark->udm.v, "Post stop");
 698         ark_udm_dump_perf(ark->udm.v, "Post stop");
 699
 700         for (i = 0; i < dev->data->nb_rx_queues; i++)
 701                 eth_ark_rx_dump_queue(dev, i, __func__);
 702
 703         /* Stop the packet checker if it is running */
 704         if (ark->start_pg) {
 705                 ark_pktchkr_dump_stats(ark->pc);
 706                 ark_pktchkr_stop(ark->pc);
 707         }
 708 }
 709
 710 static void
 711 eth_ark_dev_close(struct rte_eth_dev *dev)
 712 {
 713         struct ark_adapter *ark =
 714                 (struct ark_adapter *)dev->data->dev_private;
 715         uint16_t i;
 716
 717         if (ark->user_ext.dev_close)
 718                 ark->user_ext.dev_close(dev,
 719                  ark->user_data[dev->data->port_id]);
 720
 721         eth_ark_dev_stop(dev);
 722         eth_ark_udm_force_close(dev);
 723
 724         /*
 725          * TODO This should only be called once for the device during shutdown
 726          */
 727         ark_rqp_dump(ark->rqpacing);
 728
 729         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 730                 eth_ark_tx_queue_release(dev->data->tx_queues[i]);
 731                 dev->data->tx_queues[i] = 0;
 732         }
 733
 734         for (i = 0; i < dev->data->nb_rx_queues; i++) {
 735                 eth_ark_dev_rx_queue_release(dev->data->rx_queues[i]);
 736                 dev->data->rx_queues[i] = 0;
 737         }
 738 }
 739
 740 static void
 741 eth_ark_dev_info_get(struct rte_eth_dev *dev,
 742                      struct rte_eth_dev_info *dev_info)
 743 {
 744         struct ark_adapter *ark =
 745                 (struct ark_adapter *)dev->data->dev_private;
 746         struct ark_mpu_t *tx_mpu = RTE_PTR_ADD(ark->bar0, ARK_MPU_TX_BASE);
 747         struct ark_mpu_t *rx_mpu = RTE_PTR_ADD(ark->bar0, ARK_MPU_RX_BASE);
 748         uint16_t ports = ark->num_ports;
 749
 750         dev_info->max_rx_pktlen = ARK_RX_MAX_PKT_LEN;
 751         dev_info->min_rx_bufsize = ARK_RX_MIN_BUFSIZE;
 752
 753         dev_info->max_rx_queues = ark_api_num_queues_per_port(rx_mpu, ports);
 754         dev_info->max_tx_queues = ark_api_num_queues_per_port(tx_mpu, ports);
 755
 756         dev_info->rx_desc_lim = (struct rte_eth_desc_lim) {
 757                 .nb_max = ARK_RX_MAX_QUEUE,
 758                 .nb_min = ARK_RX_MIN_QUEUE,
 759                 .nb_align = ARK_RX_MIN_QUEUE}; /* power of 2 */
 760
 761         dev_info->tx_desc_lim = (struct rte_eth_desc_lim) {
 762                 .nb_max = ARK_TX_MAX_QUEUE,
 763                 .nb_min = ARK_TX_MIN_QUEUE,
 764                 .nb_align = ARK_TX_MIN_QUEUE}; /* power of 2 */
 765
 766         /* ARK PMD supports all line rates, how do we indicate that here ?? */
 767         dev_info->speed_capa = (ETH_LINK_SPEED_1G |
 768                                 ETH_LINK_SPEED_10G |
 769                                 ETH_LINK_SPEED_25G |
 770                                 ETH_LINK_SPEED_40G |
 771                                 ETH_LINK_SPEED_50G |
 772                                 ETH_LINK_SPEED_100G);
 773         dev_info->pci_dev = RTE_ETH_DEV_TO_PCI(dev);
 774 }
 775
 776 static int
 777 eth_ark_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 778 {
 779         PMD_DEBUG_LOG(DEBUG, "link status = %d\n",
 780                         dev->data->dev_link.link_status);
 781         struct ark_adapter *ark =
 782                 (struct ark_adapter *)dev->data->dev_private;
 783
 784         if (ark->user_ext.link_update) {
 785                 return ark->user_ext.link_update
 786                         (dev, wait_to_complete,
 787                          ark->user_data[dev->data->port_id]);
 788         }
 789         return 0;
 790 }
 791
 792 static int
 793 eth_ark_dev_set_link_up(struct rte_eth_dev *dev)
 794 {
 795         dev->data->dev_link.link_status = 1;
 796         struct ark_adapter *ark =
 797                 (struct ark_adapter *)dev->data->dev_private;
 798
 799         if (ark->user_ext.dev_set_link_up)
 800                 return ark->user_ext.dev_set_link_up(dev,
 801                              ark->user_data[dev->data->port_id]);
 802         return 0;
 803 }
 804
 805 static int
 806 eth_ark_dev_set_link_down(struct rte_eth_dev *dev)
 807 {
 808         dev->data->dev_link.link_status = 0;
 809         struct ark_adapter *ark =
 810                 (struct ark_adapter *)dev->data->dev_private;
 811
 812         if (ark->user_ext.dev_set_link_down)
 813                 return ark->user_ext.dev_set_link_down(dev,
 814                        ark->user_data[dev->data->port_id]);
 815         return 0;
 816 }
 817
 818 static int
 819 eth_ark_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 820 {
 821         uint16_t i;
 822         struct ark_adapter *ark =
 823                 (struct ark_adapter *)dev->data->dev_private;
 824
 825         stats->ipackets = 0;
 826         stats->ibytes = 0;
 827         stats->opackets = 0;
 828         stats->obytes = 0;
 829         stats->imissed = 0;
 830         stats->oerrors = 0;
 831
 832         for (i = 0; i < dev->data->nb_tx_queues; i++)
 833                 eth_tx_queue_stats_get(dev->data->tx_queues[i], stats);
 834         for (i = 0; i < dev->data->nb_rx_queues; i++)
 835                 eth_rx_queue_stats_get(dev->data->rx_queues[i], stats);
 836         if (ark->user_ext.stats_get)
 837                 return ark->user_ext.stats_get(dev, stats,
 838                         ark->user_data[dev->data->port_id]);
 839         return 0;
 840 }
 841
 842 static void
 843 eth_ark_dev_stats_reset(struct rte_eth_dev *dev)
 844 {
 845         uint16_t i;
 846         struct ark_adapter *ark =
 847                 (struct ark_adapter *)dev->data->dev_private;
 848
 849         for (i = 0; i < dev->data->nb_tx_queues; i++)
 850                 eth_tx_queue_stats_reset(dev->data->tx_queues[i]);
 851         for (i = 0; i < dev->data->nb_rx_queues; i++)
 852                 eth_rx_queue_stats_reset(dev->data->rx_queues[i]);
 853         if (ark->user_ext.stats_reset)
 854                 ark->user_ext.stats_reset(dev,
 855                           ark->user_data[dev->data->port_id]);
 856 }
 857
 858 static int
 859 eth_ark_macaddr_add(struct rte_eth_dev *dev,
 860                     struct ether_addr *mac_addr,
 861                     uint32_t index,
 862                     uint32_t pool)
 863 {
 864         struct ark_adapter *ark =
 865                 (struct ark_adapter *)dev->data->dev_private;
 866
 867         if (ark->user_ext.mac_addr_add) {
 868                 ark->user_ext.mac_addr_add(dev,
 869                                            mac_addr,
 870                                            index,
 871                                            pool,
 872                            ark->user_data[dev->data->port_id]);
 873                 return 0;
 874         }
 875         return -ENOTSUP;
 876 }
 877
 878 static void
 879 eth_ark_macaddr_remove(struct rte_eth_dev *dev, uint32_t index)
 880 {
 881         struct ark_adapter *ark =
 882                 (struct ark_adapter *)dev->data->dev_private;
 883
 884         if (ark->user_ext.mac_addr_remove)
 885                 ark->user_ext.mac_addr_remove(dev, index,
 886                               ark->user_data[dev->data->port_id]);
 887 }
 888
 889 static void
 890 eth_ark_set_default_mac_addr(struct rte_eth_dev *dev,
 891                              struct ether_addr *mac_addr)
 892 {
 893         struct ark_adapter *ark =
 894                 (struct ark_adapter *)dev->data->dev_private;
 895
 896         if (ark->user_ext.mac_addr_set)
 897                 ark->user_ext.mac_addr_set(dev, mac_addr,
 898                            ark->user_data[dev->data->port_id]);
 899 }
 900
 901 static int
 902 eth_ark_set_mtu(struct rte_eth_dev *dev, uint16_t  size)
 903 {
 904         struct ark_adapter *ark =
 905                 (struct ark_adapter *)dev->data->dev_private;
 906
 907         if (ark->user_ext.set_mtu)
 908                 return ark->user_ext.set_mtu(dev, size,
 909                              ark->user_data[dev->data->port_id]);
 910
 911         return -ENOTSUP;
 912 }
 913
 914 static inline int
 915 process_pktdir_arg(const char *key, const char *value,
 916                    void *extra_args)
 917 {
 918         PMD_FUNC_LOG(DEBUG, "key = %s, value = %s\n",
 919                     key, value);
 920         struct ark_adapter *ark =
 921                 (struct ark_adapter *)extra_args;
 922
 923         ark->pkt_dir_v = strtol(value, NULL, 16);
 924         PMD_FUNC_LOG(DEBUG, "pkt_dir_v = 0x%x\n", ark->pkt_dir_v);
 925         return 0;
 926 }
 927
 928 static inline int
 929 process_file_args(const char *key, const char *value, void *extra_args)
 930 {
 931         PMD_FUNC_LOG(DEBUG, "key = %s, value = %s\n",
 932                     key, value);
 933         char *args = (char *)extra_args;
 934
 935         /* Open the configuration file */
 936         FILE *file = fopen(value, "r");
 937         char line[ARK_MAX_ARG_LEN];
 938         int  size = 0;
 939         int first = 1;
 940
 941         if (file == NULL) {
 942                 PMD_DRV_LOG(ERR, "Unable to open "
 943                             "config file %s\n", value);
 944                 return -1;
 945         }
 946
 947         while (fgets(line, sizeof(line), file)) {
 948                 size += strlen(line);
 949                 if (size >= ARK_MAX_ARG_LEN) {
 950                         PMD_DRV_LOG(ERR, "Unable to parse file %s args, "
 951                                     "parameter list is too long\n", value);
 952                         fclose(file);
 953                         return -1;
 954                 }
 955                 if (first) {
 956                         strncpy(args, line, ARK_MAX_ARG_LEN);
 957                         first = 0;
 958                 } else {
 959                         strncat(args, line, ARK_MAX_ARG_LEN);
 960                 }
 961         }
 962         PMD_FUNC_LOG(DEBUG, "file = %s\n", args);
 963         fclose(file);
 964         return 0;
 965 }
 966
 967 static int
 968 eth_ark_check_args(struct ark_adapter *ark, const char *params)
 969 {
 970         struct rte_kvargs *kvlist;
 971         unsigned int k_idx;
 972         struct rte_kvargs_pair *pair = NULL;
 973         int ret = -1;
 974
 975         kvlist = rte_kvargs_parse(params, valid_arguments);
 976         if (kvlist == NULL)
 977                 return 0;
 978
 979         ark->pkt_gen_args[0] = 0;
 980         ark->pkt_chkr_args[0] = 0;
 981
 982         for (k_idx = 0; k_idx < kvlist->count; k_idx++) {
 983                 pair = &kvlist->pairs[k_idx];
 984                 PMD_FUNC_LOG(DEBUG, "**** Arg passed to PMD = %s:%s\n",
 985                              pair->key,
 986                              pair->value);
 987         }
 988
 989         if (rte_kvargs_process(kvlist,
 990                                ARK_PKTDIR_ARG,
 991                                &process_pktdir_arg,
 992                                ark) != 0) {
 993                 PMD_DRV_LOG(ERR, "Unable to parse arg %s\n", ARK_PKTDIR_ARG);
 994                 goto free_kvlist;
 995         }
 996
 997         if (rte_kvargs_process(kvlist,
 998                                ARK_PKTGEN_ARG,
 999                                &process_file_args,
1000                                ark->pkt_gen_args) != 0) {
1001                 PMD_DRV_LOG(ERR, "Unable to parse arg %s\n", ARK_PKTGEN_ARG);
1002                 goto free_kvlist;
1003         }
1004
1005         if (rte_kvargs_process(kvlist,
1006                                ARK_PKTCHKR_ARG,
1007                                &process_file_args,
1008                                ark->pkt_chkr_args) != 0) {
1009                 PMD_DRV_LOG(ERR, "Unable to parse arg %s\n", ARK_PKTCHKR_ARG);
1010                 goto free_kvlist;
1011         }
1012
1013         PMD_DRV_LOG(INFO, "packet director set to 0x%x\n", ark->pkt_dir_v);
1014         /* Setup the packet director */
1015         ark_pktdir_setup(ark->pd, ark->pkt_dir_v);
1016
1017         /* Setup the packet generator */
1018         if (ark->pkt_gen_args[0]) {
1019                 PMD_DRV_LOG(INFO, "Setting up the packet generator\n");
1020                 ark_pktgen_parse(ark->pkt_gen_args);
1021                 ark_pktgen_reset(ark->pg);
1022                 ark_pktgen_setup(ark->pg);
1023                 ark->start_pg = 1;
1024         }
1025
1026         /* Setup the packet checker */
1027         if (ark->pkt_chkr_args[0]) {
1028                 ark_pktchkr_parse(ark->pkt_chkr_args);
1029                 ark_pktchkr_setup(ark->pc);
1030         }
1031
1032         ret = 0;
1033
1034 free_kvlist:
1035         rte_kvargs_free(kvlist);
1036
1037         return ret;
1038 }
1039
1040 RTE_PMD_REGISTER_PCI(net_ark, rte_ark_pmd);
1041 RTE_PMD_REGISTER_KMOD_DEP(net_ark, "* igb_uio | uio_pci_generic ");
1042 RTE_PMD_REGISTER_PCI_TABLE(net_ark, pci_id_ark_map);
1043 RTE_PMD_REGISTER_PARAM_STRING(net_ark,
1044                               ARK_PKTGEN_ARG "=<filename> "
1045                               ARK_PKTCHKR_ARG "=<filename> "
1046                               ARK_PKTDIR_ARG "=<bitmap>");