1 /* 2 * BSD LICENSE 3 * 4 * Copyright (C) Cavium Inc. 2017. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 10 * * Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * * Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in 14 * the documentation and/or other materials provided with the 15 * distribution. 16 * * Neither the name of Cavium networks nor the names of its 17 * contributors may be used to endorse or promote products derived 18 * from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 24 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 25 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 26 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 #include <stdio.h> 33 #include <stdarg.h> 34 #include <stdbool.h> 35 #include <stdint.h> 36 #include <string.h> 37 #include <unistd.h> 38 39 #include <rte_alarm.h> 40 #include <rte_branch_prediction.h> 41 #include <rte_debug.h> 42 #include <rte_devargs.h> 43 #include <rte_dev.h> 44 #include <rte_kvargs.h> 45 #include <rte_malloc.h> 46 #include <rte_prefetch.h> 47 #include <rte_vdev.h> 48 49 #include "octeontx_ethdev.h" 50 #include "octeontx_logs.h" 51 52 struct octeontx_vdev_init_params { 53 uint8_t nr_port; 54 }; 55 56 /* Parse integer from integer argument */ 57 static int 58 parse_integer_arg(const char *key __rte_unused, 59 const char *value, void *extra_args) 60 { 61 int *i = (int *)extra_args; 62 63 *i = atoi(value); 64 if (*i < 0) { 65 octeontx_log_err("argument has to be positive."); 66 return -1; 67 } 68 69 return 0; 70 } 71 72 static int 73 octeontx_parse_vdev_init_params(struct octeontx_vdev_init_params *params, 74 struct rte_vdev_device *dev) 75 { 76 struct rte_kvargs *kvlist = NULL; 77 int ret = 0; 78 79 static const char * const octeontx_vdev_valid_params[] = { 80 OCTEONTX_VDEV_NR_PORT_ARG, 81 NULL 82 }; 83 84 const char *input_args = rte_vdev_device_args(dev); 85 if (params == NULL) 86 return -EINVAL; 87 88 89 if (input_args) { 90 kvlist = rte_kvargs_parse(input_args, 91 octeontx_vdev_valid_params); 92 if (kvlist == NULL) 93 return -1; 94 95 ret = rte_kvargs_process(kvlist, 96 OCTEONTX_VDEV_NR_PORT_ARG, 97 &parse_integer_arg, 98 ¶ms->nr_port); 99 if (ret < 0) 100 goto free_kvlist; 101 } 102 103 free_kvlist: 104 rte_kvargs_free(kvlist); 105 return ret; 106 } 107 108 static int 109 octeontx_port_open(struct octeontx_nic *nic) 110 { 111 octeontx_mbox_bgx_port_conf_t bgx_port_conf; 112 int res; 113 114 res = 0; 115 116 PMD_INIT_FUNC_TRACE(); 117 118 res = octeontx_bgx_port_open(nic->port_id, &bgx_port_conf); 119 if (res < 0) { 120 octeontx_log_err("failed to open port %d", res); 121 return res; 122 } 123 124 nic->node = bgx_port_conf.node; 125 nic->port_ena = bgx_port_conf.enable; 126 nic->base_ichan = bgx_port_conf.base_chan; 127 nic->base_ochan = bgx_port_conf.base_chan; 128 nic->num_ichans = bgx_port_conf.num_chans; 129 nic->num_ochans = bgx_port_conf.num_chans; 130 nic->mtu = bgx_port_conf.mtu; 131 nic->bpen = bgx_port_conf.bpen; 132 nic->fcs_strip = bgx_port_conf.fcs_strip; 133 nic->bcast_mode = bgx_port_conf.bcast_mode; 134 nic->mcast_mode = bgx_port_conf.mcast_mode; 135 nic->speed = bgx_port_conf.mode; 136 137 memcpy(&nic->mac_addr[0], &bgx_port_conf.macaddr[0], ETHER_ADDR_LEN); 138 139 octeontx_log_dbg("port opened %d", nic->port_id); 140 return res; 141 } 142 143 static void 144 octeontx_port_close(struct octeontx_nic *nic) 145 { 146 PMD_INIT_FUNC_TRACE(); 147 148 octeontx_bgx_port_close(nic->port_id); 149 octeontx_log_dbg("port closed %d", nic->port_id); 150 } 151 152 static inline void 153 devconf_set_default_sane_values(struct rte_event_dev_config *dev_conf, 154 struct rte_event_dev_info *info) 155 { 156 memset(dev_conf, 0, sizeof(struct rte_event_dev_config)); 157 dev_conf->dequeue_timeout_ns = info->min_dequeue_timeout_ns; 158 159 dev_conf->nb_event_ports = info->max_event_ports; 160 dev_conf->nb_event_queues = info->max_event_queues; 161 162 dev_conf->nb_event_queue_flows = info->max_event_queue_flows; 163 dev_conf->nb_event_port_dequeue_depth = 164 info->max_event_port_dequeue_depth; 165 dev_conf->nb_event_port_enqueue_depth = 166 info->max_event_port_enqueue_depth; 167 dev_conf->nb_event_port_enqueue_depth = 168 info->max_event_port_enqueue_depth; 169 dev_conf->nb_events_limit = 170 info->max_num_events; 171 } 172 173 static int 174 octeontx_dev_configure(struct rte_eth_dev *dev) 175 { 176 struct rte_eth_dev_data *data = dev->data; 177 struct rte_eth_conf *conf = &data->dev_conf; 178 struct rte_eth_rxmode *rxmode = &conf->rxmode; 179 struct rte_eth_txmode *txmode = &conf->txmode; 180 struct octeontx_nic *nic = octeontx_pmd_priv(dev); 181 int ret; 182 183 PMD_INIT_FUNC_TRACE(); 184 RTE_SET_USED(conf); 185 186 if (!rte_eal_has_hugepages()) { 187 octeontx_log_err("huge page is not configured"); 188 return -EINVAL; 189 } 190 191 if (txmode->mq_mode) { 192 octeontx_log_err("tx mq_mode DCB or VMDq not supported"); 193 return -EINVAL; 194 } 195 196 if (rxmode->mq_mode != ETH_MQ_RX_NONE && 197 rxmode->mq_mode != ETH_MQ_RX_RSS) { 198 octeontx_log_err("unsupported rx qmode %d", rxmode->mq_mode); 199 return -EINVAL; 200 } 201 202 if (!rxmode->hw_strip_crc) { 203 PMD_INIT_LOG(NOTICE, "can't disable hw crc strip"); 204 rxmode->hw_strip_crc = 1; 205 } 206 207 if (rxmode->hw_ip_checksum) { 208 PMD_INIT_LOG(NOTICE, "rxcksum not supported"); 209 rxmode->hw_ip_checksum = 0; 210 } 211 212 if (rxmode->split_hdr_size) { 213 octeontx_log_err("rxmode does not support split header"); 214 return -EINVAL; 215 } 216 217 if (rxmode->hw_vlan_filter) { 218 octeontx_log_err("VLAN filter not supported"); 219 return -EINVAL; 220 } 221 222 if (rxmode->hw_vlan_extend) { 223 octeontx_log_err("VLAN extended not supported"); 224 return -EINVAL; 225 } 226 227 if (rxmode->enable_lro) { 228 octeontx_log_err("LRO not supported"); 229 return -EINVAL; 230 } 231 232 if (conf->link_speeds & ETH_LINK_SPEED_FIXED) { 233 octeontx_log_err("setting link speed/duplex not supported"); 234 return -EINVAL; 235 } 236 237 if (conf->dcb_capability_en) { 238 octeontx_log_err("DCB enable not supported"); 239 return -EINVAL; 240 } 241 242 if (conf->fdir_conf.mode != RTE_FDIR_MODE_NONE) { 243 octeontx_log_err("flow director not supported"); 244 return -EINVAL; 245 } 246 247 nic->num_tx_queues = dev->data->nb_tx_queues; 248 249 ret = octeontx_pko_channel_open(nic->port_id * PKO_VF_NUM_DQ, 250 nic->num_tx_queues, 251 nic->base_ochan); 252 if (ret) { 253 octeontx_log_err("failed to open channel %d no-of-txq %d", 254 nic->base_ochan, nic->num_tx_queues); 255 return -EFAULT; 256 } 257 258 nic->pki.classifier_enable = false; 259 nic->pki.hash_enable = true; 260 nic->pki.initialized = false; 261 262 return 0; 263 } 264 265 /* Initialize and register driver with DPDK Application */ 266 static const struct eth_dev_ops octeontx_dev_ops = { 267 .dev_configure = octeontx_dev_configure, 268 }; 269 270 /* Create Ethdev interface per BGX LMAC ports */ 271 static int 272 octeontx_create(struct rte_vdev_device *dev, int port, uint8_t evdev, 273 int socket_id) 274 { 275 int res; 276 char octtx_name[OCTEONTX_MAX_NAME_LEN]; 277 struct octeontx_nic *nic = NULL; 278 struct rte_eth_dev *eth_dev = NULL; 279 struct rte_eth_dev_data *data = NULL; 280 const char *name = rte_vdev_device_name(dev); 281 282 PMD_INIT_FUNC_TRACE(); 283 284 sprintf(octtx_name, "%s_%d", name, port); 285 if (rte_eal_process_type() != RTE_PROC_PRIMARY) { 286 eth_dev = rte_eth_dev_attach_secondary(octtx_name); 287 if (eth_dev == NULL) 288 return -ENODEV; 289 290 return 0; 291 } 292 293 data = rte_zmalloc_socket(octtx_name, sizeof(*data), 0, socket_id); 294 if (data == NULL) { 295 octeontx_log_err("failed to allocate devdata"); 296 res = -ENOMEM; 297 goto err; 298 } 299 300 nic = rte_zmalloc_socket(octtx_name, sizeof(*nic), 0, socket_id); 301 if (nic == NULL) { 302 octeontx_log_err("failed to allocate nic structure"); 303 res = -ENOMEM; 304 goto err; 305 } 306 307 nic->port_id = port; 308 nic->evdev = evdev; 309 310 res = octeontx_port_open(nic); 311 if (res < 0) 312 goto err; 313 314 /* Rx side port configuration */ 315 res = octeontx_pki_port_open(port); 316 if (res != 0) { 317 octeontx_log_err("failed to open PKI port %d", port); 318 res = -ENODEV; 319 goto err; 320 } 321 322 /* Reserve an ethdev entry */ 323 eth_dev = rte_eth_dev_allocate(octtx_name); 324 if (eth_dev == NULL) { 325 octeontx_log_err("failed to allocate rte_eth_dev"); 326 res = -ENOMEM; 327 goto err; 328 } 329 330 eth_dev->device = &dev->device; 331 eth_dev->intr_handle = NULL; 332 eth_dev->data->kdrv = RTE_KDRV_NONE; 333 eth_dev->data->numa_node = dev->device.numa_node; 334 335 rte_memcpy(data, (eth_dev)->data, sizeof(*data)); 336 data->dev_private = nic; 337 338 data->port_id = eth_dev->data->port_id; 339 snprintf(data->name, sizeof(data->name), "%s", eth_dev->data->name); 340 341 nic->ev_queues = 1; 342 nic->ev_ports = 1; 343 344 data->dev_link.link_status = ETH_LINK_DOWN; 345 data->dev_started = 0; 346 data->promiscuous = 0; 347 data->all_multicast = 0; 348 data->scattered_rx = 0; 349 350 data->mac_addrs = rte_zmalloc_socket(octtx_name, ETHER_ADDR_LEN, 0, 351 socket_id); 352 if (data->mac_addrs == NULL) { 353 octeontx_log_err("failed to allocate memory for mac_addrs"); 354 res = -ENOMEM; 355 goto err; 356 } 357 358 eth_dev->data = data; 359 eth_dev->dev_ops = &octeontx_dev_ops; 360 361 /* Finally save ethdev pointer to the NIC structure */ 362 nic->dev = eth_dev; 363 364 if (nic->port_id != data->port_id) { 365 octeontx_log_err("eth_dev->port_id (%d) is diff to orig (%d)", 366 data->port_id, nic->port_id); 367 res = -EINVAL; 368 goto err; 369 } 370 371 /* Update port_id mac to eth_dev */ 372 memcpy(data->mac_addrs, nic->mac_addr, ETHER_ADDR_LEN); 373 374 PMD_INIT_LOG(DEBUG, "ethdev info: "); 375 PMD_INIT_LOG(DEBUG, "port %d, port_ena %d ochan %d num_ochan %d tx_q %d", 376 nic->port_id, nic->port_ena, 377 nic->base_ochan, nic->num_ochans, 378 nic->num_tx_queues); 379 PMD_INIT_LOG(DEBUG, "speed %d mtu %d", nic->speed, nic->mtu); 380 381 return data->port_id; 382 383 err: 384 if (port) 385 octeontx_port_close(nic); 386 387 if (eth_dev != NULL) { 388 rte_free(eth_dev->data->mac_addrs); 389 rte_free(data); 390 rte_free(nic); 391 rte_eth_dev_release_port(eth_dev); 392 } 393 394 return res; 395 } 396 397 /* Un initialize octeontx device */ 398 static int 399 octeontx_remove(struct rte_vdev_device *dev) 400 { 401 char octtx_name[OCTEONTX_MAX_NAME_LEN]; 402 struct rte_eth_dev *eth_dev = NULL; 403 struct octeontx_nic *nic = NULL; 404 int i; 405 406 if (dev == NULL) 407 return -EINVAL; 408 409 for (i = 0; i < OCTEONTX_VDEV_DEFAULT_MAX_NR_PORT; i++) { 410 sprintf(octtx_name, "eth_octeontx_%d", i); 411 412 /* reserve an ethdev entry */ 413 eth_dev = rte_eth_dev_allocated(octtx_name); 414 if (eth_dev == NULL) 415 return -ENODEV; 416 417 nic = octeontx_pmd_priv(eth_dev); 418 rte_event_dev_stop(nic->evdev); 419 PMD_INIT_LOG(INFO, "Closing octeontx device %s", octtx_name); 420 421 rte_free(eth_dev->data->mac_addrs); 422 rte_free(eth_dev->data->dev_private); 423 rte_free(eth_dev->data); 424 rte_eth_dev_release_port(eth_dev); 425 rte_event_dev_close(nic->evdev); 426 } 427 428 /* Free FC resource */ 429 octeontx_pko_fc_free(); 430 431 return 0; 432 } 433 434 /* Initialize octeontx device */ 435 static int 436 octeontx_probe(struct rte_vdev_device *dev) 437 { 438 const char *dev_name; 439 static int probe_once; 440 uint8_t socket_id, qlist; 441 int tx_vfcnt, port_id, evdev, qnum, pnum, res, i; 442 struct rte_event_dev_config dev_conf; 443 const char *eventdev_name = "event_octeontx"; 444 struct rte_event_dev_info info; 445 446 struct octeontx_vdev_init_params init_params = { 447 OCTEONTX_VDEV_DEFAULT_MAX_NR_PORT 448 }; 449 450 dev_name = rte_vdev_device_name(dev); 451 res = octeontx_parse_vdev_init_params(&init_params, dev); 452 if (res < 0) 453 return -EINVAL; 454 455 if (init_params.nr_port > OCTEONTX_VDEV_DEFAULT_MAX_NR_PORT) { 456 octeontx_log_err("nr_port (%d) > max (%d)", init_params.nr_port, 457 OCTEONTX_VDEV_DEFAULT_MAX_NR_PORT); 458 return -ENOTSUP; 459 } 460 461 PMD_INIT_LOG(DEBUG, "initializing %s pmd", dev_name); 462 463 socket_id = rte_socket_id(); 464 465 tx_vfcnt = octeontx_pko_vf_count(); 466 467 if (tx_vfcnt < init_params.nr_port) { 468 octeontx_log_err("not enough PKO (%d) for port number (%d)", 469 tx_vfcnt, init_params.nr_port); 470 return -EINVAL; 471 } 472 evdev = rte_event_dev_get_dev_id(eventdev_name); 473 if (evdev < 0) { 474 octeontx_log_err("eventdev %s not found", eventdev_name); 475 return -ENODEV; 476 } 477 478 res = rte_event_dev_info_get(evdev, &info); 479 if (res < 0) { 480 octeontx_log_err("failed to eventdev info %d", res); 481 return -EINVAL; 482 } 483 484 PMD_INIT_LOG(DEBUG, "max_queue %d max_port %d", 485 info.max_event_queues, info.max_event_ports); 486 487 if (octeontx_pko_init_fc(tx_vfcnt)) 488 return -ENOMEM; 489 490 devconf_set_default_sane_values(&dev_conf, &info); 491 res = rte_event_dev_configure(evdev, &dev_conf); 492 if (res < 0) 493 goto parse_error; 494 495 rte_event_dev_attr_get(evdev, RTE_EVENT_DEV_ATTR_PORT_COUNT, 496 (uint32_t *)&pnum); 497 rte_event_dev_attr_get(evdev, RTE_EVENT_DEV_ATTR_QUEUE_COUNT, 498 (uint32_t *)&qnum); 499 if (pnum < qnum) { 500 octeontx_log_err("too few event ports (%d) for event_q(%d)", 501 pnum, qnum); 502 res = -EINVAL; 503 goto parse_error; 504 } 505 if (pnum > qnum) { 506 /* 507 * We don't poll on event ports 508 * that do not have any queues assigned. 509 */ 510 pnum = qnum; 511 PMD_INIT_LOG(INFO, 512 "reducing number of active event ports to %d", pnum); 513 } 514 for (i = 0; i < qnum; i++) { 515 res = rte_event_queue_setup(evdev, i, NULL); 516 if (res < 0) { 517 octeontx_log_err("failed to setup event_q(%d): res %d", 518 i, res); 519 goto parse_error; 520 } 521 } 522 523 for (i = 0; i < pnum; i++) { 524 res = rte_event_port_setup(evdev, i, NULL); 525 if (res < 0) { 526 res = -ENODEV; 527 octeontx_log_err("failed to setup ev port(%d) res=%d", 528 i, res); 529 goto parse_error; 530 } 531 /* Link one queue to one event port */ 532 qlist = i; 533 res = rte_event_port_link(evdev, i, &qlist, NULL, 1); 534 if (res < 0) { 535 res = -ENODEV; 536 octeontx_log_err("failed to link port (%d): res=%d", 537 i, res); 538 goto parse_error; 539 } 540 } 541 542 /* Create ethdev interface */ 543 for (i = 0; i < init_params.nr_port; i++) { 544 port_id = octeontx_create(dev, i, evdev, socket_id); 545 if (port_id < 0) { 546 octeontx_log_err("failed to create device %s", 547 dev_name); 548 res = -ENODEV; 549 goto parse_error; 550 } 551 552 PMD_INIT_LOG(INFO, "created ethdev %s for port %d", dev_name, 553 port_id); 554 } 555 556 if (probe_once) { 557 octeontx_log_err("interface %s not supported", dev_name); 558 octeontx_remove(dev); 559 res = -ENOTSUP; 560 goto parse_error; 561 } 562 probe_once = 1; 563 564 return 0; 565 566 parse_error: 567 octeontx_pko_fc_free(); 568 return res; 569 } 570 571 static struct rte_vdev_driver octeontx_pmd_drv = { 572 .probe = octeontx_probe, 573 .remove = octeontx_remove, 574 }; 575 576 RTE_PMD_REGISTER_VDEV(OCTEONTX_PMD, octeontx_pmd_drv); 577 RTE_PMD_REGISTER_ALIAS(OCTEONTX_PMD, eth_octeontx); 578 RTE_PMD_REGISTER_PARAM_STRING(OCTEONTX_PMD, "nr_port=<int> "); 579