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 void 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                 (void (*)(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         dev->data->dev_flags |= RTE_ETH_DEV_DETACHABLE;
 346
 347         dev->data->mac_addrs = rte_zmalloc("ark", ETHER_ADDR_LEN, 0);
 348         if (!dev->data->mac_addrs) {
 349                 PMD_DRV_LOG(ERR,
 350                             "Failed to allocated memory for storing mac address"
 351                             );
 352         }
 353
 354         if (ark->user_ext.dev_init) {
 355                 ark->user_data[dev->data->port_id] =
 356                         ark->user_ext.dev_init(dev, ark->a_bar, 0);
 357                 if (!ark->user_data[dev->data->port_id]) {
 358                         PMD_DRV_LOG(INFO,
 359                                     "Failed to initialize PMD extension!"
 360                                     " continuing without it\n");
 361                         memset(&ark->user_ext, 0, sizeof(struct ark_user_ext));
 362                         dlclose(ark->d_handle);
 363                 }
 364         }
 365
 366         if (pci_dev->device.devargs)
 367                 ret = eth_ark_check_args(ark, pci_dev->device.devargs->args);
 368         else
 369                 PMD_DRV_LOG(INFO, "No Device args found\n");
 370
 371         if (ret)
 372                 goto error;
 373         /*
 374          * We will create additional devices based on the number of requested
 375          * ports
 376          */
 377         if (ark->user_ext.dev_get_port_count)
 378                 port_count =
 379                         ark->user_ext.dev_get_port_count(dev,
 380                                  ark->user_data[dev->data->port_id]);
 381         ark->num_ports = port_count;
 382
 383         for (p = 0; p < port_count; p++) {
 384                 struct rte_eth_dev *eth_dev;
 385                 char name[RTE_ETH_NAME_MAX_LEN];
 386
 387                 snprintf(name, sizeof(name), "arketh%d",
 388                          dev->data->port_id + p);
 389
 390                 if (p == 0) {
 391                         /* First port is already allocated by DPDK */
 392                         eth_dev = ark->eth_dev;
 393                         continue;
 394                 }
 395
 396                 /* reserve an ethdev entry */
 397                 eth_dev = rte_eth_dev_allocate(name);
 398                 if (!eth_dev) {
 399                         PMD_DRV_LOG(ERR,
 400                                     "Could not allocate eth_dev for port %d\n",
 401                                     p);
 402                         goto error;
 403                 }
 404
 405                 eth_dev->device = &pci_dev->device;
 406                 eth_dev->data->dev_private = ark;
 407                 eth_dev->dev_ops = ark->eth_dev->dev_ops;
 408                 eth_dev->tx_pkt_burst = ark->eth_dev->tx_pkt_burst;
 409                 eth_dev->rx_pkt_burst = ark->eth_dev->rx_pkt_burst;
 410
 411                 rte_eth_copy_pci_info(eth_dev, pci_dev);
 412
 413                 eth_dev->data->mac_addrs = rte_zmalloc(name, ETHER_ADDR_LEN, 0);
 414                 if (!eth_dev->data->mac_addrs) {
 415                         PMD_DRV_LOG(ERR,
 416                                     "Memory allocation for MAC failed!"
 417                                     " Exiting.\n");
 418                         goto error;
 419                 }
 420
 421                 if (ark->user_ext.dev_init) {
 422                         ark->user_data[eth_dev->data->port_id] =
 423                                 ark->user_ext.dev_init(dev, ark->a_bar, p);
 424                 }
 425         }
 426
 427         return ret;
 428
 429  error:
 430         if (dev->data->mac_addrs)
 431                 rte_free(dev->data->mac_addrs);
 432         return -1;
 433 }
 434
 435 /*
 436  *Initial device configuration when device is opened
 437  * setup the DDM, and UDM
 438  * Called once per PCIE device
 439  */
 440 static int
 441 ark_config_device(struct rte_eth_dev *dev)
 442 {
 443         struct ark_adapter *ark =
 444                 (struct ark_adapter *)dev->data->dev_private;
 445         uint16_t num_q, i;
 446         struct ark_mpu_t *mpu;
 447
 448         /*
 449          * Make sure that the packet director, generator and checker are in a
 450          * known state
 451          */
 452         ark->start_pg = 0;
 453         ark->pg = ark_pktgen_init(ark->pktgen.v, 0, 1);
 454         if (ark->pg == NULL)
 455                 return -1;
 456         ark_pktgen_reset(ark->pg);
 457         ark->pc = ark_pktchkr_init(ark->pktchkr.v, 0, 1);
 458         if (ark->pc == NULL)
 459                 return -1;
 460         ark_pktchkr_stop(ark->pc);
 461         ark->pd = ark_pktdir_init(ark->pktdir.v);
 462         if (ark->pd == NULL)
 463                 return -1;
 464
 465         /* Verify HW */
 466         if (ark_udm_verify(ark->udm.v))
 467                 return -1;
 468         if (ark_ddm_verify(ark->ddm.v))
 469                 return -1;
 470
 471         /* UDM */
 472         if (ark_udm_reset(ark->udm.v)) {
 473                 PMD_DRV_LOG(ERR, "Unable to stop and reset UDM\n");
 474                 return -1;
 475         }
 476         /* Keep in reset until the MPU are cleared */
 477
 478         /* MPU reset */
 479         mpu = ark->mpurx.v;
 480         num_q = ark_api_num_queues(mpu);
 481         ark->rx_queues = num_q;
 482         for (i = 0; i < num_q; i++) {
 483                 ark_mpu_reset(mpu);
 484                 mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 485         }
 486
 487         ark_udm_stop(ark->udm.v, 0);
 488         ark_udm_configure(ark->udm.v,
 489                           RTE_PKTMBUF_HEADROOM,
 490                           RTE_MBUF_DEFAULT_DATAROOM,
 491                           ARK_RX_WRITE_TIME_NS);
 492         ark_udm_stats_reset(ark->udm.v);
 493         ark_udm_stop(ark->udm.v, 0);
 494
 495         /* TX -- DDM */
 496         if (ark_ddm_stop(ark->ddm.v, 1))
 497                 PMD_DRV_LOG(ERR, "Unable to stop DDM\n");
 498
 499         mpu = ark->mputx.v;
 500         num_q = ark_api_num_queues(mpu);
 501         ark->tx_queues = num_q;
 502         for (i = 0; i < num_q; i++) {
 503                 ark_mpu_reset(mpu);
 504                 mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 505         }
 506
 507         ark_ddm_reset(ark->ddm.v);
 508         ark_ddm_stats_reset(ark->ddm.v);
 509
 510         ark_ddm_stop(ark->ddm.v, 0);
 511         ark_rqp_stats_reset(ark->rqpacing);
 512
 513         return 0;
 514 }
 515
 516 static int
 517 eth_ark_dev_uninit(struct rte_eth_dev *dev)
 518 {
 519         struct ark_adapter *ark =
 520                 (struct ark_adapter *)dev->data->dev_private;
 521
 522         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 523                 return 0;
 524
 525         if (ark->user_ext.dev_uninit)
 526                 ark->user_ext.dev_uninit(dev,
 527                          ark->user_data[dev->data->port_id]);
 528
 529         ark_pktgen_uninit(ark->pg);
 530         ark_pktchkr_uninit(ark->pc);
 531
 532         dev->dev_ops = NULL;
 533         dev->rx_pkt_burst = NULL;
 534         dev->tx_pkt_burst = NULL;
 535         rte_free(dev->data->mac_addrs);
 536         return 0;
 537 }
 538
 539 static int
 540 eth_ark_dev_configure(struct rte_eth_dev *dev)
 541 {
 542         PMD_FUNC_LOG(DEBUG, "\n");
 543         struct ark_adapter *ark =
 544                 (struct ark_adapter *)dev->data->dev_private;
 545
 546         eth_ark_dev_set_link_up(dev);
 547         if (ark->user_ext.dev_configure)
 548                 return ark->user_ext.dev_configure(dev,
 549                            ark->user_data[dev->data->port_id]);
 550         return 0;
 551 }
 552
 553 static void *
 554 delay_pg_start(void *arg)
 555 {
 556         struct ark_adapter *ark = (struct ark_adapter *)arg;
 557
 558         /* This function is used exclusively for regression testing, We
 559          * perform a blind sleep here to ensure that the external test
 560          * application has time to setup the test before we generate packets
 561          */
 562         usleep(100000);
 563         ark_pktgen_run(ark->pg);
 564         return NULL;
 565 }
 566
 567 static int
 568 eth_ark_dev_start(struct rte_eth_dev *dev)
 569 {
 570         struct ark_adapter *ark =
 571                 (struct ark_adapter *)dev->data->dev_private;
 572         int i;
 573
 574         PMD_FUNC_LOG(DEBUG, "\n");
 575
 576         /* RX Side */
 577         /* start UDM */
 578         ark_udm_start(ark->udm.v);
 579
 580         for (i = 0; i < dev->data->nb_rx_queues; i++)
 581                 eth_ark_rx_start_queue(dev, i);
 582
 583         /* TX Side */
 584         for (i = 0; i < dev->data->nb_tx_queues; i++)
 585                 eth_ark_tx_queue_start(dev, i);
 586
 587         /* start DDM */
 588         ark_ddm_start(ark->ddm.v);
 589
 590         ark->started = 1;
 591         /* set xmit and receive function */
 592         dev->rx_pkt_burst = &eth_ark_recv_pkts;
 593         dev->tx_pkt_burst = &eth_ark_xmit_pkts;
 594
 595         if (ark->start_pg)
 596                 ark_pktchkr_run(ark->pc);
 597
 598         if (ark->start_pg && (dev->data->port_id == 0)) {
 599                 pthread_t thread;
 600
 601                 /* Delay packet generatpr start allow the hardware to be ready
 602                  * This is only used for sanity checking with internal generator
 603                  */
 604                 if (pthread_create(&thread, NULL, delay_pg_start, ark)) {
 605                         PMD_DRV_LOG(ERR, "Could not create pktgen "
 606                                     "starter thread\n");
 607                         return -1;
 608                 }
 609         }
 610
 611         if (ark->user_ext.dev_start)
 612                 ark->user_ext.dev_start(dev,
 613                         ark->user_data[dev->data->port_id]);
 614
 615         return 0;
 616 }
 617
 618 static void
 619 eth_ark_dev_stop(struct rte_eth_dev *dev)
 620 {
 621         uint16_t i;
 622         int status;
 623         struct ark_adapter *ark =
 624                 (struct ark_adapter *)dev->data->dev_private;
 625         struct ark_mpu_t *mpu;
 626
 627         PMD_FUNC_LOG(DEBUG, "\n");
 628
 629         if (ark->started == 0)
 630                 return;
 631         ark->started = 0;
 632
 633         /* Stop the extension first */
 634         if (ark->user_ext.dev_stop)
 635                 ark->user_ext.dev_stop(dev,
 636                        ark->user_data[dev->data->port_id]);
 637
 638         /* Stop the packet generator */
 639         if (ark->start_pg)
 640                 ark_pktgen_pause(ark->pg);
 641
 642         dev->rx_pkt_burst = &eth_ark_recv_pkts_noop;
 643         dev->tx_pkt_burst = &eth_ark_xmit_pkts_noop;
 644
 645         /* STOP TX Side */
 646         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 647                 status = eth_ark_tx_queue_stop(dev, i);
 648                 if (status != 0) {
 649                         uint16_t port = dev->data->port_id;
 650                         PMD_DRV_LOG(ERR,
 651                                     "tx_queue stop anomaly"
 652                                     " port %u, queue %u\n",
 653                                     port, i);
 654                 }
 655         }
 656
 657         /* Stop DDM */
 658         /* Wait up to 0.1 second.  each stop is up to 1000 * 10 useconds */
 659         for (i = 0; i < 10; i++) {
 660                 status = ark_ddm_stop(ark->ddm.v, 1);
 661                 if (status == 0)
 662                         break;
 663         }
 664         if (status || i != 0) {
 665                 PMD_DRV_LOG(ERR, "DDM stop anomaly. status:"
 666                             " %d iter: %u. (%s)\n",
 667                             status,
 668                             i,
 669                             __func__);
 670                 ark_ddm_dump(ark->ddm.v, "Stop anomaly");
 671
 672                 mpu = ark->mputx.v;
 673                 for (i = 0; i < ark->tx_queues; i++) {
 674                         ark_mpu_dump(mpu, "DDM failure dump", i);
 675                         mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 676                 }
 677         }
 678
 679         /* STOP RX Side */
 680         /* Stop UDM  multiple tries attempted */
 681         for (i = 0; i < 10; i++) {
 682                 status = ark_udm_stop(ark->udm.v, 1);
 683                 if (status == 0)
 684                         break;
 685         }
 686         if (status || i != 0) {
 687                 PMD_DRV_LOG(ERR, "UDM stop anomaly. status %d iter: %u. (%s)\n",
 688                             status, i, __func__);
 689                 ark_udm_dump(ark->udm.v, "Stop anomaly");
 690
 691                 mpu = ark->mpurx.v;
 692                 for (i = 0; i < ark->rx_queues; i++) {
 693                         ark_mpu_dump(mpu, "UDM Stop anomaly", i);
 694                         mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 695                 }
 696         }
 697
 698         ark_udm_dump_stats(ark->udm.v, "Post stop");
 699         ark_udm_dump_perf(ark->udm.v, "Post stop");
 700
 701         for (i = 0; i < dev->data->nb_tx_queues; i++)
 702                 eth_ark_rx_dump_queue(dev, i, __func__);
 703
 704         /* Stop the packet checker if it is running */
 705         if (ark->start_pg) {
 706                 ark_pktchkr_dump_stats(ark->pc);
 707                 ark_pktchkr_stop(ark->pc);
 708         }
 709 }
 710
 711 static void
 712 eth_ark_dev_close(struct rte_eth_dev *dev)
 713 {
 714         struct ark_adapter *ark =
 715                 (struct ark_adapter *)dev->data->dev_private;
 716         uint16_t i;
 717
 718         if (ark->user_ext.dev_close)
 719                 ark->user_ext.dev_close(dev,
 720                  ark->user_data[dev->data->port_id]);
 721
 722         eth_ark_dev_stop(dev);
 723         eth_ark_udm_force_close(dev);
 724
 725         /*
 726          * TODO This should only be called once for the device during shutdown
 727          */
 728         ark_rqp_dump(ark->rqpacing);
 729
 730         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 731                 eth_ark_tx_queue_release(dev->data->tx_queues[i]);
 732                 dev->data->tx_queues[i] = 0;
 733         }
 734
 735         for (i = 0; i < dev->data->nb_rx_queues; i++) {
 736                 eth_ark_dev_rx_queue_release(dev->data->rx_queues[i]);
 737                 dev->data->rx_queues[i] = 0;
 738         }
 739 }
 740
 741 static void
 742 eth_ark_dev_info_get(struct rte_eth_dev *dev,
 743                      struct rte_eth_dev_info *dev_info)
 744 {
 745         struct ark_adapter *ark =
 746                 (struct ark_adapter *)dev->data->dev_private;
 747         struct ark_mpu_t *tx_mpu = RTE_PTR_ADD(ark->bar0, ARK_MPU_TX_BASE);
 748         struct ark_mpu_t *rx_mpu = RTE_PTR_ADD(ark->bar0, ARK_MPU_RX_BASE);
 749         uint16_t ports = ark->num_ports;
 750
 751         dev_info->max_rx_pktlen = ARK_RX_MAX_PKT_LEN;
 752         dev_info->min_rx_bufsize = ARK_RX_MIN_BUFSIZE;
 753
 754         dev_info->max_rx_queues = ark_api_num_queues_per_port(rx_mpu, ports);
 755         dev_info->max_tx_queues = ark_api_num_queues_per_port(tx_mpu, ports);
 756
 757         dev_info->rx_desc_lim = (struct rte_eth_desc_lim) {
 758                 .nb_max = ARK_RX_MAX_QUEUE,
 759                 .nb_min = ARK_RX_MIN_QUEUE,
 760                 .nb_align = ARK_RX_MIN_QUEUE}; /* power of 2 */
 761
 762         dev_info->tx_desc_lim = (struct rte_eth_desc_lim) {
 763                 .nb_max = ARK_TX_MAX_QUEUE,
 764                 .nb_min = ARK_TX_MIN_QUEUE,
 765                 .nb_align = ARK_TX_MIN_QUEUE}; /* power of 2 */
 766
 767         /* ARK PMD supports all line rates, how do we indicate that here ?? */
 768         dev_info->speed_capa = (ETH_LINK_SPEED_1G |
 769                                 ETH_LINK_SPEED_10G |
 770                                 ETH_LINK_SPEED_25G |
 771                                 ETH_LINK_SPEED_40G |
 772                                 ETH_LINK_SPEED_50G |
 773                                 ETH_LINK_SPEED_100G);
 774         dev_info->pci_dev = RTE_ETH_DEV_TO_PCI(dev);
 775 }
 776
 777 static int
 778 eth_ark_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 779 {
 780         PMD_DEBUG_LOG(DEBUG, "link status = %d\n",
 781                         dev->data->dev_link.link_status);
 782         struct ark_adapter *ark =
 783                 (struct ark_adapter *)dev->data->dev_private;
 784
 785         if (ark->user_ext.link_update) {
 786                 return ark->user_ext.link_update
 787                         (dev, wait_to_complete,
 788                          ark->user_data[dev->data->port_id]);
 789         }
 790         return 0;
 791 }
 792
 793 static int
 794 eth_ark_dev_set_link_up(struct rte_eth_dev *dev)
 795 {
 796         dev->data->dev_link.link_status = 1;
 797         struct ark_adapter *ark =
 798                 (struct ark_adapter *)dev->data->dev_private;
 799
 800         if (ark->user_ext.dev_set_link_up)
 801                 return ark->user_ext.dev_set_link_up(dev,
 802                              ark->user_data[dev->data->port_id]);
 803         return 0;
 804 }
 805
 806 static int
 807 eth_ark_dev_set_link_down(struct rte_eth_dev *dev)
 808 {
 809         dev->data->dev_link.link_status = 0;
 810         struct ark_adapter *ark =
 811                 (struct ark_adapter *)dev->data->dev_private;
 812
 813         if (ark->user_ext.dev_set_link_down)
 814                 return ark->user_ext.dev_set_link_down(dev,
 815                        ark->user_data[dev->data->port_id]);
 816         return 0;
 817 }
 818
 819 static void
 820 eth_ark_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 821 {
 822         uint16_t i;
 823         struct ark_adapter *ark =
 824                 (struct ark_adapter *)dev->data->dev_private;
 825
 826         stats->ipackets = 0;
 827         stats->ibytes = 0;
 828         stats->opackets = 0;
 829         stats->obytes = 0;
 830         stats->imissed = 0;
 831         stats->oerrors = 0;
 832
 833         for (i = 0; i < dev->data->nb_tx_queues; i++)
 834                 eth_tx_queue_stats_get(dev->data->tx_queues[i], stats);
 835         for (i = 0; i < dev->data->nb_rx_queues; i++)
 836                 eth_rx_queue_stats_get(dev->data->rx_queues[i], stats);
 837         if (ark->user_ext.stats_get)
 838                 ark->user_ext.stats_get(dev, stats,
 839                         ark->user_data[dev->data->port_id]);
 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>");