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         ark_pktgen_reset(ark->pg);
 455         ark->pc = ark_pktchkr_init(ark->pktchkr.v, 0, 1);
 456         ark_pktchkr_stop(ark->pc);
 457         ark->pd = ark_pktdir_init(ark->pktdir.v);
 458
 459         /* Verify HW */
 460         if (ark_udm_verify(ark->udm.v))
 461                 return -1;
 462         if (ark_ddm_verify(ark->ddm.v))
 463                 return -1;
 464
 465         /* UDM */
 466         if (ark_udm_reset(ark->udm.v)) {
 467                 PMD_DRV_LOG(ERR, "Unable to stop and reset UDM\n");
 468                 return -1;
 469         }
 470         /* Keep in reset until the MPU are cleared */
 471
 472         /* MPU reset */
 473         mpu = ark->mpurx.v;
 474         num_q = ark_api_num_queues(mpu);
 475         ark->rx_queues = num_q;
 476         for (i = 0; i < num_q; i++) {
 477                 ark_mpu_reset(mpu);
 478                 mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 479         }
 480
 481         ark_udm_stop(ark->udm.v, 0);
 482         ark_udm_configure(ark->udm.v,
 483                           RTE_PKTMBUF_HEADROOM,
 484                           RTE_MBUF_DEFAULT_DATAROOM,
 485                           ARK_RX_WRITE_TIME_NS);
 486         ark_udm_stats_reset(ark->udm.v);
 487         ark_udm_stop(ark->udm.v, 0);
 488
 489         /* TX -- DDM */
 490         if (ark_ddm_stop(ark->ddm.v, 1))
 491                 PMD_DRV_LOG(ERR, "Unable to stop DDM\n");
 492
 493         mpu = ark->mputx.v;
 494         num_q = ark_api_num_queues(mpu);
 495         ark->tx_queues = num_q;
 496         for (i = 0; i < num_q; i++) {
 497                 ark_mpu_reset(mpu);
 498                 mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 499         }
 500
 501         ark_ddm_reset(ark->ddm.v);
 502         ark_ddm_stats_reset(ark->ddm.v);
 503
 504         ark_ddm_stop(ark->ddm.v, 0);
 505         ark_rqp_stats_reset(ark->rqpacing);
 506
 507         return 0;
 508 }
 509
 510 static int
 511 eth_ark_dev_uninit(struct rte_eth_dev *dev)
 512 {
 513         struct ark_adapter *ark =
 514                 (struct ark_adapter *)dev->data->dev_private;
 515
 516         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 517                 return 0;
 518
 519         if (ark->user_ext.dev_uninit)
 520                 ark->user_ext.dev_uninit(dev,
 521                          ark->user_data[dev->data->port_id]);
 522
 523         ark_pktgen_uninit(ark->pg);
 524         ark_pktchkr_uninit(ark->pc);
 525
 526         dev->dev_ops = NULL;
 527         dev->rx_pkt_burst = NULL;
 528         dev->tx_pkt_burst = NULL;
 529         rte_free(dev->data->mac_addrs);
 530         return 0;
 531 }
 532
 533 static int
 534 eth_ark_dev_configure(struct rte_eth_dev *dev)
 535 {
 536         PMD_FUNC_LOG(DEBUG, "\n");
 537         struct ark_adapter *ark =
 538                 (struct ark_adapter *)dev->data->dev_private;
 539
 540         eth_ark_dev_set_link_up(dev);
 541         if (ark->user_ext.dev_configure)
 542                 return ark->user_ext.dev_configure(dev,
 543                            ark->user_data[dev->data->port_id]);
 544         return 0;
 545 }
 546
 547 static void *
 548 delay_pg_start(void *arg)
 549 {
 550         struct ark_adapter *ark = (struct ark_adapter *)arg;
 551
 552         /* This function is used exclusively for regression testing, We
 553          * perform a blind sleep here to ensure that the external test
 554          * application has time to setup the test before we generate packets
 555          */
 556         usleep(100000);
 557         ark_pktgen_run(ark->pg);
 558         return NULL;
 559 }
 560
 561 static int
 562 eth_ark_dev_start(struct rte_eth_dev *dev)
 563 {
 564         struct ark_adapter *ark =
 565                 (struct ark_adapter *)dev->data->dev_private;
 566         int i;
 567
 568         PMD_FUNC_LOG(DEBUG, "\n");
 569
 570         /* RX Side */
 571         /* start UDM */
 572         ark_udm_start(ark->udm.v);
 573
 574         for (i = 0; i < dev->data->nb_rx_queues; i++)
 575                 eth_ark_rx_start_queue(dev, i);
 576
 577         /* TX Side */
 578         for (i = 0; i < dev->data->nb_tx_queues; i++)
 579                 eth_ark_tx_queue_start(dev, i);
 580
 581         /* start DDM */
 582         ark_ddm_start(ark->ddm.v);
 583
 584         ark->started = 1;
 585         /* set xmit and receive function */
 586         dev->rx_pkt_burst = &eth_ark_recv_pkts;
 587         dev->tx_pkt_burst = &eth_ark_xmit_pkts;
 588
 589         if (ark->start_pg)
 590                 ark_pktchkr_run(ark->pc);
 591
 592         if (ark->start_pg && (dev->data->port_id == 0)) {
 593                 pthread_t thread;
 594
 595                 /* Delay packet generatpr start allow the hardware to be ready
 596                  * This is only used for sanity checking with internal generator
 597                  */
 598                 if (pthread_create(&thread, NULL, delay_pg_start, ark)) {
 599                         PMD_DRV_LOG(ERR, "Could not create pktgen "
 600                                     "starter thread\n");
 601                         return -1;
 602                 }
 603         }
 604
 605         if (ark->user_ext.dev_start)
 606                 ark->user_ext.dev_start(dev,
 607                         ark->user_data[dev->data->port_id]);
 608
 609         return 0;
 610 }
 611
 612 static void
 613 eth_ark_dev_stop(struct rte_eth_dev *dev)
 614 {
 615         uint16_t i;
 616         int status;
 617         struct ark_adapter *ark =
 618                 (struct ark_adapter *)dev->data->dev_private;
 619         struct ark_mpu_t *mpu;
 620
 621         PMD_FUNC_LOG(DEBUG, "\n");
 622
 623         if (ark->started == 0)
 624                 return;
 625         ark->started = 0;
 626
 627         /* Stop the extension first */
 628         if (ark->user_ext.dev_stop)
 629                 ark->user_ext.dev_stop(dev,
 630                        ark->user_data[dev->data->port_id]);
 631
 632         /* Stop the packet generator */
 633         if (ark->start_pg)
 634                 ark_pktgen_pause(ark->pg);
 635
 636         dev->rx_pkt_burst = &eth_ark_recv_pkts_noop;
 637         dev->tx_pkt_burst = &eth_ark_xmit_pkts_noop;
 638
 639         /* STOP TX Side */
 640         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 641                 status = eth_ark_tx_queue_stop(dev, i);
 642                 if (status != 0) {
 643                         uint8_t port = dev->data->port_id;
 644                         PMD_DRV_LOG(ERR,
 645                                     "tx_queue stop anomaly"
 646                                     " port %u, queue %u\n",
 647                                     port, i);
 648                 }
 649         }
 650
 651         /* Stop DDM */
 652         /* Wait up to 0.1 second.  each stop is up to 1000 * 10 useconds */
 653         for (i = 0; i < 10; i++) {
 654                 status = ark_ddm_stop(ark->ddm.v, 1);
 655                 if (status == 0)
 656                         break;
 657         }
 658         if (status || i != 0) {
 659                 PMD_DRV_LOG(ERR, "DDM stop anomaly. status:"
 660                             " %d iter: %u. (%s)\n",
 661                             status,
 662                             i,
 663                             __func__);
 664                 ark_ddm_dump(ark->ddm.v, "Stop anomaly");
 665
 666                 mpu = ark->mputx.v;
 667                 for (i = 0; i < ark->tx_queues; i++) {
 668                         ark_mpu_dump(mpu, "DDM failure dump", i);
 669                         mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 670                 }
 671         }
 672
 673         /* STOP RX Side */
 674         /* Stop UDM  multiple tries attempted */
 675         for (i = 0; i < 10; i++) {
 676                 status = ark_udm_stop(ark->udm.v, 1);
 677                 if (status == 0)
 678                         break;
 679         }
 680         if (status || i != 0) {
 681                 PMD_DRV_LOG(ERR, "UDM stop anomaly. status %d iter: %u. (%s)\n",
 682                             status, i, __func__);
 683                 ark_udm_dump(ark->udm.v, "Stop anomaly");
 684
 685                 mpu = ark->mpurx.v;
 686                 for (i = 0; i < ark->rx_queues; i++) {
 687                         ark_mpu_dump(mpu, "UDM Stop anomaly", i);
 688                         mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
 689                 }
 690         }
 691
 692         ark_udm_dump_stats(ark->udm.v, "Post stop");
 693         ark_udm_dump_perf(ark->udm.v, "Post stop");
 694
 695         for (i = 0; i < dev->data->nb_tx_queues; i++)
 696                 eth_ark_rx_dump_queue(dev, i, __func__);
 697
 698         /* Stop the packet checker if it is running */
 699         if (ark->start_pg) {
 700                 ark_pktchkr_dump_stats(ark->pc);
 701                 ark_pktchkr_stop(ark->pc);
 702         }
 703 }
 704
 705 static void
 706 eth_ark_dev_close(struct rte_eth_dev *dev)
 707 {
 708         struct ark_adapter *ark =
 709                 (struct ark_adapter *)dev->data->dev_private;
 710         uint16_t i;
 711
 712         if (ark->user_ext.dev_close)
 713                 ark->user_ext.dev_close(dev,
 714                  ark->user_data[dev->data->port_id]);
 715
 716         eth_ark_dev_stop(dev);
 717         eth_ark_udm_force_close(dev);
 718
 719         /*
 720          * TODO This should only be called once for the device during shutdown
 721          */
 722         ark_rqp_dump(ark->rqpacing);
 723
 724         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 725                 eth_ark_tx_queue_release(dev->data->tx_queues[i]);
 726                 dev->data->tx_queues[i] = 0;
 727         }
 728
 729         for (i = 0; i < dev->data->nb_rx_queues; i++) {
 730                 eth_ark_dev_rx_queue_release(dev->data->rx_queues[i]);
 731                 dev->data->rx_queues[i] = 0;
 732         }
 733 }
 734
 735 static void
 736 eth_ark_dev_info_get(struct rte_eth_dev *dev,
 737                      struct rte_eth_dev_info *dev_info)
 738 {
 739         struct ark_adapter *ark =
 740                 (struct ark_adapter *)dev->data->dev_private;
 741         struct ark_mpu_t *tx_mpu = RTE_PTR_ADD(ark->bar0, ARK_MPU_TX_BASE);
 742         struct ark_mpu_t *rx_mpu = RTE_PTR_ADD(ark->bar0, ARK_MPU_RX_BASE);
 743         uint16_t ports = ark->num_ports;
 744
 745         dev_info->max_rx_pktlen = ARK_RX_MAX_PKT_LEN;
 746         dev_info->min_rx_bufsize = ARK_RX_MIN_BUFSIZE;
 747
 748         dev_info->max_rx_queues = ark_api_num_queues_per_port(rx_mpu, ports);
 749         dev_info->max_tx_queues = ark_api_num_queues_per_port(tx_mpu, ports);
 750
 751         dev_info->rx_desc_lim = (struct rte_eth_desc_lim) {
 752                 .nb_max = ARK_RX_MAX_QUEUE,
 753                 .nb_min = ARK_RX_MIN_QUEUE,
 754                 .nb_align = ARK_RX_MIN_QUEUE}; /* power of 2 */
 755
 756         dev_info->tx_desc_lim = (struct rte_eth_desc_lim) {
 757                 .nb_max = ARK_TX_MAX_QUEUE,
 758                 .nb_min = ARK_TX_MIN_QUEUE,
 759                 .nb_align = ARK_TX_MIN_QUEUE}; /* power of 2 */
 760
 761         /* ARK PMD supports all line rates, how do we indicate that here ?? */
 762         dev_info->speed_capa = (ETH_LINK_SPEED_1G |
 763                                 ETH_LINK_SPEED_10G |
 764                                 ETH_LINK_SPEED_25G |
 765                                 ETH_LINK_SPEED_40G |
 766                                 ETH_LINK_SPEED_50G |
 767                                 ETH_LINK_SPEED_100G);
 768         dev_info->pci_dev = RTE_ETH_DEV_TO_PCI(dev);
 769 }
 770
 771 static int
 772 eth_ark_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 773 {
 774         PMD_DEBUG_LOG(DEBUG, "link status = %d\n",
 775                         dev->data->dev_link.link_status);
 776         struct ark_adapter *ark =
 777                 (struct ark_adapter *)dev->data->dev_private;
 778
 779         if (ark->user_ext.link_update) {
 780                 return ark->user_ext.link_update
 781                         (dev, wait_to_complete,
 782                          ark->user_data[dev->data->port_id]);
 783         }
 784         return 0;
 785 }
 786
 787 static int
 788 eth_ark_dev_set_link_up(struct rte_eth_dev *dev)
 789 {
 790         dev->data->dev_link.link_status = 1;
 791         struct ark_adapter *ark =
 792                 (struct ark_adapter *)dev->data->dev_private;
 793
 794         if (ark->user_ext.dev_set_link_up)
 795                 return ark->user_ext.dev_set_link_up(dev,
 796                              ark->user_data[dev->data->port_id]);
 797         return 0;
 798 }
 799
 800 static int
 801 eth_ark_dev_set_link_down(struct rte_eth_dev *dev)
 802 {
 803         dev->data->dev_link.link_status = 0;
 804         struct ark_adapter *ark =
 805                 (struct ark_adapter *)dev->data->dev_private;
 806
 807         if (ark->user_ext.dev_set_link_down)
 808                 return ark->user_ext.dev_set_link_down(dev,
 809                        ark->user_data[dev->data->port_id]);
 810         return 0;
 811 }
 812
 813 static void
 814 eth_ark_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 815 {
 816         uint16_t i;
 817         struct ark_adapter *ark =
 818                 (struct ark_adapter *)dev->data->dev_private;
 819
 820         stats->ipackets = 0;
 821         stats->ibytes = 0;
 822         stats->opackets = 0;
 823         stats->obytes = 0;
 824         stats->imissed = 0;
 825         stats->oerrors = 0;
 826
 827         for (i = 0; i < dev->data->nb_tx_queues; i++)
 828                 eth_tx_queue_stats_get(dev->data->tx_queues[i], stats);
 829         for (i = 0; i < dev->data->nb_rx_queues; i++)
 830                 eth_rx_queue_stats_get(dev->data->rx_queues[i], stats);
 831         if (ark->user_ext.stats_get)
 832                 ark->user_ext.stats_get(dev, stats,
 833                         ark->user_data[dev->data->port_id]);
 834 }
 835
 836 static void
 837 eth_ark_dev_stats_reset(struct rte_eth_dev *dev)
 838 {
 839         uint16_t i;
 840         struct ark_adapter *ark =
 841                 (struct ark_adapter *)dev->data->dev_private;
 842
 843         for (i = 0; i < dev->data->nb_tx_queues; i++)
 844                 eth_tx_queue_stats_reset(dev->data->tx_queues[i]);
 845         for (i = 0; i < dev->data->nb_rx_queues; i++)
 846                 eth_rx_queue_stats_reset(dev->data->rx_queues[i]);
 847         if (ark->user_ext.stats_reset)
 848                 ark->user_ext.stats_reset(dev,
 849                           ark->user_data[dev->data->port_id]);
 850 }
 851
 852 static int
 853 eth_ark_macaddr_add(struct rte_eth_dev *dev,
 854                     struct ether_addr *mac_addr,
 855                     uint32_t index,
 856                     uint32_t pool)
 857 {
 858         struct ark_adapter *ark =
 859                 (struct ark_adapter *)dev->data->dev_private;
 860
 861         if (ark->user_ext.mac_addr_add) {
 862                 ark->user_ext.mac_addr_add(dev,
 863                                            mac_addr,
 864                                            index,
 865                                            pool,
 866                            ark->user_data[dev->data->port_id]);
 867                 return 0;
 868         }
 869         return -ENOTSUP;
 870 }
 871
 872 static void
 873 eth_ark_macaddr_remove(struct rte_eth_dev *dev, uint32_t index)
 874 {
 875         struct ark_adapter *ark =
 876                 (struct ark_adapter *)dev->data->dev_private;
 877
 878         if (ark->user_ext.mac_addr_remove)
 879                 ark->user_ext.mac_addr_remove(dev, index,
 880                               ark->user_data[dev->data->port_id]);
 881 }
 882
 883 static void
 884 eth_ark_set_default_mac_addr(struct rte_eth_dev *dev,
 885                              struct ether_addr *mac_addr)
 886 {
 887         struct ark_adapter *ark =
 888                 (struct ark_adapter *)dev->data->dev_private;
 889
 890         if (ark->user_ext.mac_addr_set)
 891                 ark->user_ext.mac_addr_set(dev, mac_addr,
 892                            ark->user_data[dev->data->port_id]);
 893 }
 894
 895 static int
 896 eth_ark_set_mtu(struct rte_eth_dev *dev, uint16_t  size)
 897 {
 898         struct ark_adapter *ark =
 899                 (struct ark_adapter *)dev->data->dev_private;
 900
 901         if (ark->user_ext.set_mtu)
 902                 return ark->user_ext.set_mtu(dev, size,
 903                              ark->user_data[dev->data->port_id]);
 904
 905         return -ENOTSUP;
 906 }
 907
 908 static inline int
 909 process_pktdir_arg(const char *key, const char *value,
 910                    void *extra_args)
 911 {
 912         PMD_FUNC_LOG(DEBUG, "key = %s, value = %s\n",
 913                     key, value);
 914         struct ark_adapter *ark =
 915                 (struct ark_adapter *)extra_args;
 916
 917         ark->pkt_dir_v = strtol(value, NULL, 16);
 918         PMD_FUNC_LOG(DEBUG, "pkt_dir_v = 0x%x\n", ark->pkt_dir_v);
 919         return 0;
 920 }
 921
 922 static inline int
 923 process_file_args(const char *key, const char *value, void *extra_args)
 924 {
 925         PMD_FUNC_LOG(DEBUG, "key = %s, value = %s\n",
 926                     key, value);
 927         char *args = (char *)extra_args;
 928
 929         /* Open the configuration file */
 930         FILE *file = fopen(value, "r");
 931         char line[ARK_MAX_ARG_LEN];
 932         int  size = 0;
 933         int first = 1;
 934
 935         if (file == NULL) {
 936                 PMD_DRV_LOG(ERR, "Unable to open "
 937                             "config file %s\n", value);
 938                 return -1;
 939         }
 940
 941         while (fgets(line, sizeof(line), file)) {
 942                 size += strlen(line);
 943                 if (size >= ARK_MAX_ARG_LEN) {
 944                         PMD_DRV_LOG(ERR, "Unable to parse file %s args, "
 945                                     "parameter list is too long\n", value);
 946                         fclose(file);
 947                         return -1;
 948                 }
 949                 if (first) {
 950                         strncpy(args, line, ARK_MAX_ARG_LEN);
 951                         first = 0;
 952                 } else {
 953                         strncat(args, line, ARK_MAX_ARG_LEN);
 954                 }
 955         }
 956         PMD_FUNC_LOG(DEBUG, "file = %s\n", args);
 957         fclose(file);
 958         return 0;
 959 }
 960
 961 static int
 962 eth_ark_check_args(struct ark_adapter *ark, const char *params)
 963 {
 964         struct rte_kvargs *kvlist;
 965         unsigned int k_idx;
 966         struct rte_kvargs_pair *pair = NULL;
 967         int ret = -1;
 968
 969         kvlist = rte_kvargs_parse(params, valid_arguments);
 970         if (kvlist == NULL)
 971                 return 0;
 972
 973         ark->pkt_gen_args[0] = 0;
 974         ark->pkt_chkr_args[0] = 0;
 975
 976         for (k_idx = 0; k_idx < kvlist->count; k_idx++) {
 977                 pair = &kvlist->pairs[k_idx];
 978                 PMD_FUNC_LOG(DEBUG, "**** Arg passed to PMD = %s:%s\n",
 979                              pair->key,
 980                              pair->value);
 981         }
 982
 983         if (rte_kvargs_process(kvlist,
 984                                ARK_PKTDIR_ARG,
 985                                &process_pktdir_arg,
 986                                ark) != 0) {
 987                 PMD_DRV_LOG(ERR, "Unable to parse arg %s\n", ARK_PKTDIR_ARG);
 988                 goto free_kvlist;
 989         }
 990
 991         if (rte_kvargs_process(kvlist,
 992                                ARK_PKTGEN_ARG,
 993                                &process_file_args,
 994                                ark->pkt_gen_args) != 0) {
 995                 PMD_DRV_LOG(ERR, "Unable to parse arg %s\n", ARK_PKTGEN_ARG);
 996                 goto free_kvlist;
 997         }
 998
 999         if (rte_kvargs_process(kvlist,
1000                                ARK_PKTCHKR_ARG,
1001                                &process_file_args,
1002                                ark->pkt_chkr_args) != 0) {
1003                 PMD_DRV_LOG(ERR, "Unable to parse arg %s\n", ARK_PKTCHKR_ARG);
1004                 goto free_kvlist;
1005         }
1006
1007         PMD_DRV_LOG(INFO, "packet director set to 0x%x\n", ark->pkt_dir_v);
1008         /* Setup the packet director */
1009         ark_pktdir_setup(ark->pd, ark->pkt_dir_v);
1010
1011         /* Setup the packet generator */
1012         if (ark->pkt_gen_args[0]) {
1013                 PMD_DRV_LOG(INFO, "Setting up the packet generator\n");
1014                 ark_pktgen_parse(ark->pkt_gen_args);
1015                 ark_pktgen_reset(ark->pg);
1016                 ark_pktgen_setup(ark->pg);
1017                 ark->start_pg = 1;
1018         }
1019
1020         /* Setup the packet checker */
1021         if (ark->pkt_chkr_args[0]) {
1022                 ark_pktchkr_parse(ark->pkt_chkr_args);
1023                 ark_pktchkr_setup(ark->pc);
1024         }
1025
1026         ret = 0;
1027
1028 free_kvlist:
1029         rte_kvargs_free(kvlist);
1030
1031         return ret;
1032 }
1033
1034 RTE_PMD_REGISTER_PCI(net_ark, rte_ark_pmd);
1035 RTE_PMD_REGISTER_KMOD_DEP(net_ark, "* igb_uio | uio_pci_generic ");
1036 RTE_PMD_REGISTER_PCI_TABLE(net_ark, pci_id_ark_map);
1037 RTE_PMD_REGISTER_PARAM_STRING(net_ark,
1038                               ARK_PKTGEN_ARG "=<filename> "
1039                               ARK_PKTCHKR_ARG "=<filename> "
1040                               ARK_PKTDIR_ARG "=<bitmap>");