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