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