1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2014-2018 Chelsio Communications. 3 * All rights reserved. 4 */ 5 6 #include <sys/queue.h> 7 #include <stdio.h> 8 #include <errno.h> 9 #include <stdint.h> 10 #include <string.h> 11 #include <unistd.h> 12 #include <stdarg.h> 13 #include <inttypes.h> 14 #include <netinet/in.h> 15 16 #include <rte_byteorder.h> 17 #include <rte_common.h> 18 #include <rte_cycles.h> 19 #include <rte_interrupts.h> 20 #include <rte_log.h> 21 #include <rte_debug.h> 22 #include <rte_pci.h> 23 #include <rte_bus_pci.h> 24 #include <rte_atomic.h> 25 #include <rte_branch_prediction.h> 26 #include <rte_memory.h> 27 #include <rte_tailq.h> 28 #include <rte_eal.h> 29 #include <rte_alarm.h> 30 #include <rte_ether.h> 31 #include <rte_ethdev_driver.h> 32 #include <rte_ethdev_pci.h> 33 #include <rte_malloc.h> 34 #include <rte_random.h> 35 #include <rte_dev.h> 36 37 #include "cxgbe.h" 38 #include "cxgbe_pfvf.h" 39 #include "cxgbe_flow.h" 40 41 /* 42 * Macros needed to support the PCI Device ID Table ... 43 */ 44 #define CH_PCI_DEVICE_ID_TABLE_DEFINE_BEGIN \ 45 static const struct rte_pci_id cxgb4_pci_tbl[] = { 46 #define CH_PCI_DEVICE_ID_FUNCTION 0x4 47 48 #define PCI_VENDOR_ID_CHELSIO 0x1425 49 50 #define CH_PCI_ID_TABLE_ENTRY(devid) \ 51 { RTE_PCI_DEVICE(PCI_VENDOR_ID_CHELSIO, (devid)) } 52 53 #define CH_PCI_DEVICE_ID_TABLE_DEFINE_END \ 54 { .vendor_id = 0, } \ 55 } 56 57 /* 58 *... and the PCI ID Table itself ... 59 */ 60 #include "base/t4_pci_id_tbl.h" 61 62 uint16_t cxgbe_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, 63 uint16_t nb_pkts) 64 { 65 struct sge_eth_txq *txq = (struct sge_eth_txq *)tx_queue; 66 uint16_t pkts_sent, pkts_remain; 67 uint16_t total_sent = 0; 68 int ret = 0; 69 70 CXGBE_DEBUG_TX(adapter, "%s: txq = %p; tx_pkts = %p; nb_pkts = %d\n", 71 __func__, txq, tx_pkts, nb_pkts); 72 73 t4_os_lock(&txq->txq_lock); 74 /* free up desc from already completed tx */ 75 reclaim_completed_tx(&txq->q); 76 while (total_sent < nb_pkts) { 77 pkts_remain = nb_pkts - total_sent; 78 79 for (pkts_sent = 0; pkts_sent < pkts_remain; pkts_sent++) { 80 ret = t4_eth_xmit(txq, tx_pkts[total_sent + pkts_sent], 81 nb_pkts); 82 if (ret < 0) 83 break; 84 } 85 if (!pkts_sent) 86 break; 87 total_sent += pkts_sent; 88 /* reclaim as much as possible */ 89 reclaim_completed_tx(&txq->q); 90 } 91 92 t4_os_unlock(&txq->txq_lock); 93 return total_sent; 94 } 95 96 uint16_t cxgbe_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, 97 uint16_t nb_pkts) 98 { 99 struct sge_eth_rxq *rxq = (struct sge_eth_rxq *)rx_queue; 100 unsigned int work_done; 101 102 CXGBE_DEBUG_RX(adapter, "%s: rxq->rspq.cntxt_id = %u; nb_pkts = %d\n", 103 __func__, rxq->rspq.cntxt_id, nb_pkts); 104 105 if (cxgbe_poll(&rxq->rspq, rx_pkts, (unsigned int)nb_pkts, &work_done)) 106 dev_err(adapter, "error in cxgbe poll\n"); 107 108 CXGBE_DEBUG_RX(adapter, "%s: work_done = %u\n", __func__, work_done); 109 return work_done; 110 } 111 112 void cxgbe_dev_info_get(struct rte_eth_dev *eth_dev, 113 struct rte_eth_dev_info *device_info) 114 { 115 struct port_info *pi = eth_dev->data->dev_private; 116 struct adapter *adapter = pi->adapter; 117 int max_queues = adapter->sge.max_ethqsets / adapter->params.nports; 118 119 static const struct rte_eth_desc_lim cxgbe_desc_lim = { 120 .nb_max = CXGBE_MAX_RING_DESC_SIZE, 121 .nb_min = CXGBE_MIN_RING_DESC_SIZE, 122 .nb_align = 1, 123 }; 124 125 device_info->min_rx_bufsize = CXGBE_MIN_RX_BUFSIZE; 126 device_info->max_rx_pktlen = CXGBE_MAX_RX_PKTLEN; 127 device_info->max_rx_queues = max_queues; 128 device_info->max_tx_queues = max_queues; 129 device_info->max_mac_addrs = 1; 130 /* XXX: For now we support one MAC/port */ 131 device_info->max_vfs = adapter->params.arch.vfcount; 132 device_info->max_vmdq_pools = 0; /* XXX: For now no support for VMDQ */ 133 134 device_info->rx_queue_offload_capa = 0UL; 135 device_info->rx_offload_capa = CXGBE_RX_OFFLOADS; 136 137 device_info->tx_queue_offload_capa = 0UL; 138 device_info->tx_offload_capa = CXGBE_TX_OFFLOADS; 139 140 device_info->reta_size = pi->rss_size; 141 device_info->hash_key_size = CXGBE_DEFAULT_RSS_KEY_LEN; 142 device_info->flow_type_rss_offloads = CXGBE_RSS_HF_ALL; 143 144 device_info->rx_desc_lim = cxgbe_desc_lim; 145 device_info->tx_desc_lim = cxgbe_desc_lim; 146 cxgbe_get_speed_caps(pi, &device_info->speed_capa); 147 } 148 149 void cxgbe_dev_promiscuous_enable(struct rte_eth_dev *eth_dev) 150 { 151 struct port_info *pi = eth_dev->data->dev_private; 152 struct adapter *adapter = pi->adapter; 153 154 t4_set_rxmode(adapter, adapter->mbox, pi->viid, -1, 155 1, -1, 1, -1, false); 156 } 157 158 void cxgbe_dev_promiscuous_disable(struct rte_eth_dev *eth_dev) 159 { 160 struct port_info *pi = eth_dev->data->dev_private; 161 struct adapter *adapter = pi->adapter; 162 163 t4_set_rxmode(adapter, adapter->mbox, pi->viid, -1, 164 0, -1, 1, -1, false); 165 } 166 167 void cxgbe_dev_allmulticast_enable(struct rte_eth_dev *eth_dev) 168 { 169 struct port_info *pi = eth_dev->data->dev_private; 170 struct adapter *adapter = pi->adapter; 171 172 /* TODO: address filters ?? */ 173 174 t4_set_rxmode(adapter, adapter->mbox, pi->viid, -1, 175 -1, 1, 1, -1, false); 176 } 177 178 void cxgbe_dev_allmulticast_disable(struct rte_eth_dev *eth_dev) 179 { 180 struct port_info *pi = eth_dev->data->dev_private; 181 struct adapter *adapter = pi->adapter; 182 183 /* TODO: address filters ?? */ 184 185 t4_set_rxmode(adapter, adapter->mbox, pi->viid, -1, 186 -1, 0, 1, -1, false); 187 } 188 189 int cxgbe_dev_link_update(struct rte_eth_dev *eth_dev, 190 int wait_to_complete) 191 { 192 struct port_info *pi = eth_dev->data->dev_private; 193 struct adapter *adapter = pi->adapter; 194 struct sge *s = &adapter->sge; 195 struct rte_eth_link new_link = { 0 }; 196 unsigned int i, work_done, budget = 32; 197 u8 old_link = pi->link_cfg.link_ok; 198 199 for (i = 0; i < CXGBE_LINK_STATUS_POLL_CNT; i++) { 200 cxgbe_poll(&s->fw_evtq, NULL, budget, &work_done); 201 202 /* Exit if link status changed or always forced up */ 203 if (pi->link_cfg.link_ok != old_link || 204 cxgbe_force_linkup(adapter)) 205 break; 206 207 if (!wait_to_complete) 208 break; 209 210 rte_delay_ms(CXGBE_LINK_STATUS_POLL_MS); 211 } 212 213 new_link.link_status = cxgbe_force_linkup(adapter) ? 214 ETH_LINK_UP : pi->link_cfg.link_ok; 215 new_link.link_autoneg = pi->link_cfg.autoneg; 216 new_link.link_duplex = ETH_LINK_FULL_DUPLEX; 217 new_link.link_speed = pi->link_cfg.speed; 218 219 return rte_eth_linkstatus_set(eth_dev, &new_link); 220 } 221 222 /** 223 * Set device link up. 224 */ 225 int cxgbe_dev_set_link_up(struct rte_eth_dev *dev) 226 { 227 struct port_info *pi = dev->data->dev_private; 228 struct adapter *adapter = pi->adapter; 229 unsigned int work_done, budget = 32; 230 struct sge *s = &adapter->sge; 231 int ret; 232 233 /* Flush all link events */ 234 cxgbe_poll(&s->fw_evtq, NULL, budget, &work_done); 235 236 /* If link already up, nothing to do */ 237 if (pi->link_cfg.link_ok) 238 return 0; 239 240 ret = cxgbe_set_link_status(pi, true); 241 if (ret) 242 return ret; 243 244 cxgbe_dev_link_update(dev, 1); 245 return 0; 246 } 247 248 /** 249 * Set device link down. 250 */ 251 int cxgbe_dev_set_link_down(struct rte_eth_dev *dev) 252 { 253 struct port_info *pi = dev->data->dev_private; 254 struct adapter *adapter = pi->adapter; 255 unsigned int work_done, budget = 32; 256 struct sge *s = &adapter->sge; 257 int ret; 258 259 /* Flush all link events */ 260 cxgbe_poll(&s->fw_evtq, NULL, budget, &work_done); 261 262 /* If link already down, nothing to do */ 263 if (!pi->link_cfg.link_ok) 264 return 0; 265 266 ret = cxgbe_set_link_status(pi, false); 267 if (ret) 268 return ret; 269 270 cxgbe_dev_link_update(dev, 0); 271 return 0; 272 } 273 274 int cxgbe_dev_mtu_set(struct rte_eth_dev *eth_dev, uint16_t mtu) 275 { 276 struct port_info *pi = eth_dev->data->dev_private; 277 struct adapter *adapter = pi->adapter; 278 struct rte_eth_dev_info dev_info; 279 int err; 280 uint16_t new_mtu = mtu + RTE_ETHER_HDR_LEN + RTE_ETHER_CRC_LEN; 281 282 cxgbe_dev_info_get(eth_dev, &dev_info); 283 284 /* Must accommodate at least RTE_ETHER_MIN_MTU */ 285 if (new_mtu < RTE_ETHER_MIN_MTU || new_mtu > dev_info.max_rx_pktlen) 286 return -EINVAL; 287 288 /* set to jumbo mode if needed */ 289 if (new_mtu > RTE_ETHER_MAX_LEN) 290 eth_dev->data->dev_conf.rxmode.offloads |= 291 DEV_RX_OFFLOAD_JUMBO_FRAME; 292 else 293 eth_dev->data->dev_conf.rxmode.offloads &= 294 ~DEV_RX_OFFLOAD_JUMBO_FRAME; 295 296 err = t4_set_rxmode(adapter, adapter->mbox, pi->viid, new_mtu, -1, -1, 297 -1, -1, true); 298 if (!err) 299 eth_dev->data->dev_conf.rxmode.max_rx_pkt_len = new_mtu; 300 301 return err; 302 } 303 304 /* 305 * Stop device. 306 */ 307 void cxgbe_dev_close(struct rte_eth_dev *eth_dev) 308 { 309 struct port_info *pi = eth_dev->data->dev_private; 310 struct adapter *adapter = pi->adapter; 311 312 CXGBE_FUNC_TRACE(); 313 314 if (!(adapter->flags & FULL_INIT_DONE)) 315 return; 316 317 cxgbe_down(pi); 318 319 /* 320 * We clear queues only if both tx and rx path of the port 321 * have been disabled 322 */ 323 t4_sge_eth_clear_queues(pi); 324 } 325 326 /* Start the device. 327 * It returns 0 on success. 328 */ 329 int cxgbe_dev_start(struct rte_eth_dev *eth_dev) 330 { 331 struct port_info *pi = eth_dev->data->dev_private; 332 struct rte_eth_rxmode *rx_conf = ð_dev->data->dev_conf.rxmode; 333 struct adapter *adapter = pi->adapter; 334 int err = 0, i; 335 336 CXGBE_FUNC_TRACE(); 337 338 /* 339 * If we don't have a connection to the firmware there's nothing we 340 * can do. 341 */ 342 if (!(adapter->flags & FW_OK)) { 343 err = -ENXIO; 344 goto out; 345 } 346 347 if (!(adapter->flags & FULL_INIT_DONE)) { 348 err = cxgbe_up(adapter); 349 if (err < 0) 350 goto out; 351 } 352 353 if (rx_conf->offloads & DEV_RX_OFFLOAD_SCATTER) 354 eth_dev->data->scattered_rx = 1; 355 else 356 eth_dev->data->scattered_rx = 0; 357 358 cxgbe_enable_rx_queues(pi); 359 360 err = cxgbe_setup_rss(pi); 361 if (err) 362 goto out; 363 364 for (i = 0; i < pi->n_tx_qsets; i++) { 365 err = cxgbe_dev_tx_queue_start(eth_dev, i); 366 if (err) 367 goto out; 368 } 369 370 for (i = 0; i < pi->n_rx_qsets; i++) { 371 err = cxgbe_dev_rx_queue_start(eth_dev, i); 372 if (err) 373 goto out; 374 } 375 376 err = cxgbe_link_start(pi); 377 if (err) 378 goto out; 379 380 out: 381 return err; 382 } 383 384 /* 385 * Stop device: disable rx and tx functions to allow for reconfiguring. 386 */ 387 void cxgbe_dev_stop(struct rte_eth_dev *eth_dev) 388 { 389 struct port_info *pi = eth_dev->data->dev_private; 390 struct adapter *adapter = pi->adapter; 391 392 CXGBE_FUNC_TRACE(); 393 394 if (!(adapter->flags & FULL_INIT_DONE)) 395 return; 396 397 cxgbe_down(pi); 398 399 /* 400 * We clear queues only if both tx and rx path of the port 401 * have been disabled 402 */ 403 t4_sge_eth_clear_queues(pi); 404 eth_dev->data->scattered_rx = 0; 405 } 406 407 int cxgbe_dev_configure(struct rte_eth_dev *eth_dev) 408 { 409 struct port_info *pi = eth_dev->data->dev_private; 410 struct adapter *adapter = pi->adapter; 411 int err; 412 413 CXGBE_FUNC_TRACE(); 414 415 if (!(adapter->flags & FW_QUEUE_BOUND)) { 416 err = cxgbe_setup_sge_fwevtq(adapter); 417 if (err) 418 return err; 419 adapter->flags |= FW_QUEUE_BOUND; 420 if (is_pf4(adapter)) { 421 err = cxgbe_setup_sge_ctrl_txq(adapter); 422 if (err) 423 return err; 424 } 425 } 426 427 err = cxgbe_cfg_queue_count(eth_dev); 428 if (err) 429 return err; 430 431 return 0; 432 } 433 434 int cxgbe_dev_tx_queue_start(struct rte_eth_dev *eth_dev, uint16_t tx_queue_id) 435 { 436 int ret; 437 struct sge_eth_txq *txq = (struct sge_eth_txq *) 438 (eth_dev->data->tx_queues[tx_queue_id]); 439 440 dev_debug(NULL, "%s: tx_queue_id = %d\n", __func__, tx_queue_id); 441 442 ret = t4_sge_eth_txq_start(txq); 443 if (ret == 0) 444 eth_dev->data->tx_queue_state[tx_queue_id] = RTE_ETH_QUEUE_STATE_STARTED; 445 446 return ret; 447 } 448 449 int cxgbe_dev_tx_queue_stop(struct rte_eth_dev *eth_dev, uint16_t tx_queue_id) 450 { 451 int ret; 452 struct sge_eth_txq *txq = (struct sge_eth_txq *) 453 (eth_dev->data->tx_queues[tx_queue_id]); 454 455 dev_debug(NULL, "%s: tx_queue_id = %d\n", __func__, tx_queue_id); 456 457 ret = t4_sge_eth_txq_stop(txq); 458 if (ret == 0) 459 eth_dev->data->tx_queue_state[tx_queue_id] = RTE_ETH_QUEUE_STATE_STOPPED; 460 461 return ret; 462 } 463 464 int cxgbe_dev_tx_queue_setup(struct rte_eth_dev *eth_dev, 465 uint16_t queue_idx, uint16_t nb_desc, 466 unsigned int socket_id, 467 const struct rte_eth_txconf *tx_conf __rte_unused) 468 { 469 struct port_info *pi = eth_dev->data->dev_private; 470 struct adapter *adapter = pi->adapter; 471 struct sge *s = &adapter->sge; 472 struct sge_eth_txq *txq = &s->ethtxq[pi->first_qset + queue_idx]; 473 int err = 0; 474 unsigned int temp_nb_desc; 475 476 dev_debug(adapter, "%s: eth_dev->data->nb_tx_queues = %d; queue_idx = %d; nb_desc = %d; socket_id = %d; pi->first_qset = %u\n", 477 __func__, eth_dev->data->nb_tx_queues, queue_idx, nb_desc, 478 socket_id, pi->first_qset); 479 480 /* Free up the existing queue */ 481 if (eth_dev->data->tx_queues[queue_idx]) { 482 cxgbe_dev_tx_queue_release(eth_dev->data->tx_queues[queue_idx]); 483 eth_dev->data->tx_queues[queue_idx] = NULL; 484 } 485 486 eth_dev->data->tx_queues[queue_idx] = (void *)txq; 487 488 /* Sanity Checking 489 * 490 * nb_desc should be > 1023 and <= CXGBE_MAX_RING_DESC_SIZE 491 */ 492 temp_nb_desc = nb_desc; 493 if (nb_desc < CXGBE_MIN_RING_DESC_SIZE) { 494 dev_warn(adapter, "%s: number of descriptors must be >= %d. Using default [%d]\n", 495 __func__, CXGBE_MIN_RING_DESC_SIZE, 496 CXGBE_DEFAULT_TX_DESC_SIZE); 497 temp_nb_desc = CXGBE_DEFAULT_TX_DESC_SIZE; 498 } else if (nb_desc > CXGBE_MAX_RING_DESC_SIZE) { 499 dev_err(adapter, "%s: number of descriptors must be between %d and %d inclusive. Default [%d]\n", 500 __func__, CXGBE_MIN_RING_DESC_SIZE, 501 CXGBE_MAX_RING_DESC_SIZE, CXGBE_DEFAULT_TX_DESC_SIZE); 502 return -(EINVAL); 503 } 504 505 txq->q.size = temp_nb_desc; 506 507 err = t4_sge_alloc_eth_txq(adapter, txq, eth_dev, queue_idx, 508 s->fw_evtq.cntxt_id, socket_id); 509 510 dev_debug(adapter, "%s: txq->q.cntxt_id= %u txq->q.abs_id= %u err = %d\n", 511 __func__, txq->q.cntxt_id, txq->q.abs_id, err); 512 return err; 513 } 514 515 void cxgbe_dev_tx_queue_release(void *q) 516 { 517 struct sge_eth_txq *txq = (struct sge_eth_txq *)q; 518 519 if (txq) { 520 struct port_info *pi = (struct port_info *) 521 (txq->eth_dev->data->dev_private); 522 struct adapter *adap = pi->adapter; 523 524 dev_debug(adapter, "%s: pi->port_id = %d; tx_queue_id = %d\n", 525 __func__, pi->port_id, txq->q.cntxt_id); 526 527 t4_sge_eth_txq_release(adap, txq); 528 } 529 } 530 531 int cxgbe_dev_rx_queue_start(struct rte_eth_dev *eth_dev, uint16_t rx_queue_id) 532 { 533 int ret; 534 struct port_info *pi = eth_dev->data->dev_private; 535 struct adapter *adap = pi->adapter; 536 struct sge_rspq *q; 537 538 dev_debug(adapter, "%s: pi->port_id = %d; rx_queue_id = %d\n", 539 __func__, pi->port_id, rx_queue_id); 540 541 q = eth_dev->data->rx_queues[rx_queue_id]; 542 543 ret = t4_sge_eth_rxq_start(adap, q); 544 if (ret == 0) 545 eth_dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STARTED; 546 547 return ret; 548 } 549 550 int cxgbe_dev_rx_queue_stop(struct rte_eth_dev *eth_dev, uint16_t rx_queue_id) 551 { 552 int ret; 553 struct port_info *pi = eth_dev->data->dev_private; 554 struct adapter *adap = pi->adapter; 555 struct sge_rspq *q; 556 557 dev_debug(adapter, "%s: pi->port_id = %d; rx_queue_id = %d\n", 558 __func__, pi->port_id, rx_queue_id); 559 560 q = eth_dev->data->rx_queues[rx_queue_id]; 561 ret = t4_sge_eth_rxq_stop(adap, q); 562 if (ret == 0) 563 eth_dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STOPPED; 564 565 return ret; 566 } 567 568 int cxgbe_dev_rx_queue_setup(struct rte_eth_dev *eth_dev, 569 uint16_t queue_idx, uint16_t nb_desc, 570 unsigned int socket_id, 571 const struct rte_eth_rxconf *rx_conf __rte_unused, 572 struct rte_mempool *mp) 573 { 574 struct port_info *pi = eth_dev->data->dev_private; 575 struct adapter *adapter = pi->adapter; 576 struct sge *s = &adapter->sge; 577 struct sge_eth_rxq *rxq = &s->ethrxq[pi->first_qset + queue_idx]; 578 int err = 0; 579 int msi_idx = 0; 580 unsigned int temp_nb_desc; 581 struct rte_eth_dev_info dev_info; 582 unsigned int pkt_len = eth_dev->data->dev_conf.rxmode.max_rx_pkt_len; 583 584 dev_debug(adapter, "%s: eth_dev->data->nb_rx_queues = %d; queue_idx = %d; nb_desc = %d; socket_id = %d; mp = %p\n", 585 __func__, eth_dev->data->nb_rx_queues, queue_idx, nb_desc, 586 socket_id, mp); 587 588 cxgbe_dev_info_get(eth_dev, &dev_info); 589 590 /* Must accommodate at least RTE_ETHER_MIN_MTU */ 591 if ((pkt_len < dev_info.min_rx_bufsize) || 592 (pkt_len > dev_info.max_rx_pktlen)) { 593 dev_err(adap, "%s: max pkt len must be > %d and <= %d\n", 594 __func__, dev_info.min_rx_bufsize, 595 dev_info.max_rx_pktlen); 596 return -EINVAL; 597 } 598 599 /* Free up the existing queue */ 600 if (eth_dev->data->rx_queues[queue_idx]) { 601 cxgbe_dev_rx_queue_release(eth_dev->data->rx_queues[queue_idx]); 602 eth_dev->data->rx_queues[queue_idx] = NULL; 603 } 604 605 eth_dev->data->rx_queues[queue_idx] = (void *)rxq; 606 607 /* Sanity Checking 608 * 609 * nb_desc should be > 0 and <= CXGBE_MAX_RING_DESC_SIZE 610 */ 611 temp_nb_desc = nb_desc; 612 if (nb_desc < CXGBE_MIN_RING_DESC_SIZE) { 613 dev_warn(adapter, "%s: number of descriptors must be >= %d. Using default [%d]\n", 614 __func__, CXGBE_MIN_RING_DESC_SIZE, 615 CXGBE_DEFAULT_RX_DESC_SIZE); 616 temp_nb_desc = CXGBE_DEFAULT_RX_DESC_SIZE; 617 } else if (nb_desc > CXGBE_MAX_RING_DESC_SIZE) { 618 dev_err(adapter, "%s: number of descriptors must be between %d and %d inclusive. Default [%d]\n", 619 __func__, CXGBE_MIN_RING_DESC_SIZE, 620 CXGBE_MAX_RING_DESC_SIZE, CXGBE_DEFAULT_RX_DESC_SIZE); 621 return -(EINVAL); 622 } 623 624 rxq->rspq.size = temp_nb_desc; 625 if ((&rxq->fl) != NULL) 626 rxq->fl.size = temp_nb_desc; 627 628 /* Set to jumbo mode if necessary */ 629 if (pkt_len > RTE_ETHER_MAX_LEN) 630 eth_dev->data->dev_conf.rxmode.offloads |= 631 DEV_RX_OFFLOAD_JUMBO_FRAME; 632 else 633 eth_dev->data->dev_conf.rxmode.offloads &= 634 ~DEV_RX_OFFLOAD_JUMBO_FRAME; 635 636 err = t4_sge_alloc_rxq(adapter, &rxq->rspq, false, eth_dev, msi_idx, 637 &rxq->fl, NULL, 638 is_pf4(adapter) ? 639 t4_get_tp_ch_map(adapter, pi->tx_chan) : 0, mp, 640 queue_idx, socket_id); 641 642 dev_debug(adapter, "%s: err = %d; port_id = %d; cntxt_id = %u; abs_id = %u\n", 643 __func__, err, pi->port_id, rxq->rspq.cntxt_id, 644 rxq->rspq.abs_id); 645 return err; 646 } 647 648 void cxgbe_dev_rx_queue_release(void *q) 649 { 650 struct sge_eth_rxq *rxq = (struct sge_eth_rxq *)q; 651 struct sge_rspq *rq = &rxq->rspq; 652 653 if (rq) { 654 struct port_info *pi = (struct port_info *) 655 (rq->eth_dev->data->dev_private); 656 struct adapter *adap = pi->adapter; 657 658 dev_debug(adapter, "%s: pi->port_id = %d; rx_queue_id = %d\n", 659 __func__, pi->port_id, rxq->rspq.cntxt_id); 660 661 t4_sge_eth_rxq_release(adap, rxq); 662 } 663 } 664 665 /* 666 * Get port statistics. 667 */ 668 static int cxgbe_dev_stats_get(struct rte_eth_dev *eth_dev, 669 struct rte_eth_stats *eth_stats) 670 { 671 struct port_info *pi = eth_dev->data->dev_private; 672 struct adapter *adapter = pi->adapter; 673 struct sge *s = &adapter->sge; 674 struct port_stats ps; 675 unsigned int i; 676 677 cxgbe_stats_get(pi, &ps); 678 679 /* RX Stats */ 680 eth_stats->imissed = ps.rx_ovflow0 + ps.rx_ovflow1 + 681 ps.rx_ovflow2 + ps.rx_ovflow3 + 682 ps.rx_trunc0 + ps.rx_trunc1 + 683 ps.rx_trunc2 + ps.rx_trunc3; 684 eth_stats->ierrors = ps.rx_symbol_err + ps.rx_fcs_err + 685 ps.rx_jabber + ps.rx_too_long + ps.rx_runt + 686 ps.rx_len_err; 687 688 /* TX Stats */ 689 eth_stats->opackets = ps.tx_frames; 690 eth_stats->obytes = ps.tx_octets; 691 eth_stats->oerrors = ps.tx_error_frames; 692 693 for (i = 0; i < pi->n_rx_qsets; i++) { 694 struct sge_eth_rxq *rxq = 695 &s->ethrxq[pi->first_qset + i]; 696 697 eth_stats->q_ipackets[i] = rxq->stats.pkts; 698 eth_stats->q_ibytes[i] = rxq->stats.rx_bytes; 699 eth_stats->ipackets += eth_stats->q_ipackets[i]; 700 eth_stats->ibytes += eth_stats->q_ibytes[i]; 701 } 702 703 for (i = 0; i < pi->n_tx_qsets; i++) { 704 struct sge_eth_txq *txq = 705 &s->ethtxq[pi->first_qset + i]; 706 707 eth_stats->q_opackets[i] = txq->stats.pkts; 708 eth_stats->q_obytes[i] = txq->stats.tx_bytes; 709 } 710 return 0; 711 } 712 713 /* 714 * Reset port statistics. 715 */ 716 static void cxgbe_dev_stats_reset(struct rte_eth_dev *eth_dev) 717 { 718 struct port_info *pi = eth_dev->data->dev_private; 719 struct adapter *adapter = pi->adapter; 720 struct sge *s = &adapter->sge; 721 unsigned int i; 722 723 cxgbe_stats_reset(pi); 724 for (i = 0; i < pi->n_rx_qsets; i++) { 725 struct sge_eth_rxq *rxq = 726 &s->ethrxq[pi->first_qset + i]; 727 728 rxq->stats.pkts = 0; 729 rxq->stats.rx_bytes = 0; 730 } 731 for (i = 0; i < pi->n_tx_qsets; i++) { 732 struct sge_eth_txq *txq = 733 &s->ethtxq[pi->first_qset + i]; 734 735 txq->stats.pkts = 0; 736 txq->stats.tx_bytes = 0; 737 txq->stats.mapping_err = 0; 738 } 739 } 740 741 static int cxgbe_flow_ctrl_get(struct rte_eth_dev *eth_dev, 742 struct rte_eth_fc_conf *fc_conf) 743 { 744 struct port_info *pi = eth_dev->data->dev_private; 745 struct link_config *lc = &pi->link_cfg; 746 int rx_pause, tx_pause; 747 748 fc_conf->autoneg = lc->fc & PAUSE_AUTONEG; 749 rx_pause = lc->fc & PAUSE_RX; 750 tx_pause = lc->fc & PAUSE_TX; 751 752 if (rx_pause && tx_pause) 753 fc_conf->mode = RTE_FC_FULL; 754 else if (rx_pause) 755 fc_conf->mode = RTE_FC_RX_PAUSE; 756 else if (tx_pause) 757 fc_conf->mode = RTE_FC_TX_PAUSE; 758 else 759 fc_conf->mode = RTE_FC_NONE; 760 return 0; 761 } 762 763 static int cxgbe_flow_ctrl_set(struct rte_eth_dev *eth_dev, 764 struct rte_eth_fc_conf *fc_conf) 765 { 766 struct port_info *pi = eth_dev->data->dev_private; 767 struct adapter *adapter = pi->adapter; 768 struct link_config *lc = &pi->link_cfg; 769 770 if (lc->pcaps & FW_PORT_CAP32_ANEG) { 771 if (fc_conf->autoneg) 772 lc->requested_fc |= PAUSE_AUTONEG; 773 else 774 lc->requested_fc &= ~PAUSE_AUTONEG; 775 } 776 777 if (((fc_conf->mode & RTE_FC_FULL) == RTE_FC_FULL) || 778 (fc_conf->mode & RTE_FC_RX_PAUSE)) 779 lc->requested_fc |= PAUSE_RX; 780 else 781 lc->requested_fc &= ~PAUSE_RX; 782 783 if (((fc_conf->mode & RTE_FC_FULL) == RTE_FC_FULL) || 784 (fc_conf->mode & RTE_FC_TX_PAUSE)) 785 lc->requested_fc |= PAUSE_TX; 786 else 787 lc->requested_fc &= ~PAUSE_TX; 788 789 return t4_link_l1cfg(adapter, adapter->mbox, pi->tx_chan, 790 &pi->link_cfg); 791 } 792 793 const uint32_t * 794 cxgbe_dev_supported_ptypes_get(struct rte_eth_dev *eth_dev) 795 { 796 static const uint32_t ptypes[] = { 797 RTE_PTYPE_L3_IPV4, 798 RTE_PTYPE_L3_IPV6, 799 RTE_PTYPE_UNKNOWN 800 }; 801 802 if (eth_dev->rx_pkt_burst == cxgbe_recv_pkts) 803 return ptypes; 804 return NULL; 805 } 806 807 /* Update RSS hash configuration 808 */ 809 static int cxgbe_dev_rss_hash_update(struct rte_eth_dev *dev, 810 struct rte_eth_rss_conf *rss_conf) 811 { 812 struct port_info *pi = dev->data->dev_private; 813 struct adapter *adapter = pi->adapter; 814 int err; 815 816 err = cxgbe_write_rss_conf(pi, rss_conf->rss_hf); 817 if (err) 818 return err; 819 820 pi->rss_hf = rss_conf->rss_hf; 821 822 if (rss_conf->rss_key) { 823 u32 key[10], mod_key[10]; 824 int i, j; 825 826 memcpy(key, rss_conf->rss_key, CXGBE_DEFAULT_RSS_KEY_LEN); 827 828 for (i = 9, j = 0; i >= 0; i--, j++) 829 mod_key[j] = cpu_to_be32(key[i]); 830 831 t4_write_rss_key(adapter, mod_key, -1); 832 } 833 834 return 0; 835 } 836 837 /* Get RSS hash configuration 838 */ 839 static int cxgbe_dev_rss_hash_conf_get(struct rte_eth_dev *dev, 840 struct rte_eth_rss_conf *rss_conf) 841 { 842 struct port_info *pi = dev->data->dev_private; 843 struct adapter *adapter = pi->adapter; 844 u64 rss_hf = 0; 845 u64 flags = 0; 846 int err; 847 848 err = t4_read_config_vi_rss(adapter, adapter->mbox, pi->viid, 849 &flags, NULL); 850 851 if (err) 852 return err; 853 854 if (flags & F_FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN) { 855 rss_hf |= CXGBE_RSS_HF_TCP_IPV6_MASK; 856 if (flags & F_FW_RSS_VI_CONFIG_CMD_UDPEN) 857 rss_hf |= CXGBE_RSS_HF_UDP_IPV6_MASK; 858 } 859 860 if (flags & F_FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN) 861 rss_hf |= CXGBE_RSS_HF_IPV6_MASK; 862 863 if (flags & F_FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN) { 864 rss_hf |= ETH_RSS_NONFRAG_IPV4_TCP; 865 if (flags & F_FW_RSS_VI_CONFIG_CMD_UDPEN) 866 rss_hf |= ETH_RSS_NONFRAG_IPV4_UDP; 867 } 868 869 if (flags & F_FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN) 870 rss_hf |= CXGBE_RSS_HF_IPV4_MASK; 871 872 rss_conf->rss_hf = rss_hf; 873 874 if (rss_conf->rss_key) { 875 u32 key[10], mod_key[10]; 876 int i, j; 877 878 t4_read_rss_key(adapter, key); 879 880 for (i = 9, j = 0; i >= 0; i--, j++) 881 mod_key[j] = be32_to_cpu(key[i]); 882 883 memcpy(rss_conf->rss_key, mod_key, CXGBE_DEFAULT_RSS_KEY_LEN); 884 } 885 886 return 0; 887 } 888 889 static int cxgbe_get_eeprom_length(struct rte_eth_dev *dev) 890 { 891 RTE_SET_USED(dev); 892 return EEPROMSIZE; 893 } 894 895 /** 896 * eeprom_ptov - translate a physical EEPROM address to virtual 897 * @phys_addr: the physical EEPROM address 898 * @fn: the PCI function number 899 * @sz: size of function-specific area 900 * 901 * Translate a physical EEPROM address to virtual. The first 1K is 902 * accessed through virtual addresses starting at 31K, the rest is 903 * accessed through virtual addresses starting at 0. 904 * 905 * The mapping is as follows: 906 * [0..1K) -> [31K..32K) 907 * [1K..1K+A) -> [31K-A..31K) 908 * [1K+A..ES) -> [0..ES-A-1K) 909 * 910 * where A = @fn * @sz, and ES = EEPROM size. 911 */ 912 static int eeprom_ptov(unsigned int phys_addr, unsigned int fn, unsigned int sz) 913 { 914 fn *= sz; 915 if (phys_addr < 1024) 916 return phys_addr + (31 << 10); 917 if (phys_addr < 1024 + fn) 918 return fn + phys_addr - 1024; 919 if (phys_addr < EEPROMSIZE) 920 return phys_addr - 1024 - fn; 921 if (phys_addr < EEPROMVSIZE) 922 return phys_addr - 1024; 923 return -EINVAL; 924 } 925 926 /* The next two routines implement eeprom read/write from physical addresses. 927 */ 928 static int eeprom_rd_phys(struct adapter *adap, unsigned int phys_addr, u32 *v) 929 { 930 int vaddr = eeprom_ptov(phys_addr, adap->pf, EEPROMPFSIZE); 931 932 if (vaddr >= 0) 933 vaddr = t4_seeprom_read(adap, vaddr, v); 934 return vaddr < 0 ? vaddr : 0; 935 } 936 937 static int eeprom_wr_phys(struct adapter *adap, unsigned int phys_addr, u32 v) 938 { 939 int vaddr = eeprom_ptov(phys_addr, adap->pf, EEPROMPFSIZE); 940 941 if (vaddr >= 0) 942 vaddr = t4_seeprom_write(adap, vaddr, v); 943 return vaddr < 0 ? vaddr : 0; 944 } 945 946 #define EEPROM_MAGIC 0x38E2F10C 947 948 static int cxgbe_get_eeprom(struct rte_eth_dev *dev, 949 struct rte_dev_eeprom_info *e) 950 { 951 struct port_info *pi = dev->data->dev_private; 952 struct adapter *adapter = pi->adapter; 953 u32 i, err = 0; 954 u8 *buf = rte_zmalloc(NULL, EEPROMSIZE, 0); 955 956 if (!buf) 957 return -ENOMEM; 958 959 e->magic = EEPROM_MAGIC; 960 for (i = e->offset & ~3; !err && i < e->offset + e->length; i += 4) 961 err = eeprom_rd_phys(adapter, i, (u32 *)&buf[i]); 962 963 if (!err) 964 rte_memcpy(e->data, buf + e->offset, e->length); 965 rte_free(buf); 966 return err; 967 } 968 969 static int cxgbe_set_eeprom(struct rte_eth_dev *dev, 970 struct rte_dev_eeprom_info *eeprom) 971 { 972 struct port_info *pi = dev->data->dev_private; 973 struct adapter *adapter = pi->adapter; 974 u8 *buf; 975 int err = 0; 976 u32 aligned_offset, aligned_len, *p; 977 978 if (eeprom->magic != EEPROM_MAGIC) 979 return -EINVAL; 980 981 aligned_offset = eeprom->offset & ~3; 982 aligned_len = (eeprom->length + (eeprom->offset & 3) + 3) & ~3; 983 984 if (adapter->pf > 0) { 985 u32 start = 1024 + adapter->pf * EEPROMPFSIZE; 986 987 if (aligned_offset < start || 988 aligned_offset + aligned_len > start + EEPROMPFSIZE) 989 return -EPERM; 990 } 991 992 if (aligned_offset != eeprom->offset || aligned_len != eeprom->length) { 993 /* RMW possibly needed for first or last words. 994 */ 995 buf = rte_zmalloc(NULL, aligned_len, 0); 996 if (!buf) 997 return -ENOMEM; 998 err = eeprom_rd_phys(adapter, aligned_offset, (u32 *)buf); 999 if (!err && aligned_len > 4) 1000 err = eeprom_rd_phys(adapter, 1001 aligned_offset + aligned_len - 4, 1002 (u32 *)&buf[aligned_len - 4]); 1003 if (err) 1004 goto out; 1005 rte_memcpy(buf + (eeprom->offset & 3), eeprom->data, 1006 eeprom->length); 1007 } else { 1008 buf = eeprom->data; 1009 } 1010 1011 err = t4_seeprom_wp(adapter, false); 1012 if (err) 1013 goto out; 1014 1015 for (p = (u32 *)buf; !err && aligned_len; aligned_len -= 4, p++) { 1016 err = eeprom_wr_phys(adapter, aligned_offset, *p); 1017 aligned_offset += 4; 1018 } 1019 1020 if (!err) 1021 err = t4_seeprom_wp(adapter, true); 1022 out: 1023 if (buf != eeprom->data) 1024 rte_free(buf); 1025 return err; 1026 } 1027 1028 static int cxgbe_get_regs_len(struct rte_eth_dev *eth_dev) 1029 { 1030 struct port_info *pi = eth_dev->data->dev_private; 1031 struct adapter *adapter = pi->adapter; 1032 1033 return t4_get_regs_len(adapter) / sizeof(uint32_t); 1034 } 1035 1036 static int cxgbe_get_regs(struct rte_eth_dev *eth_dev, 1037 struct rte_dev_reg_info *regs) 1038 { 1039 struct port_info *pi = eth_dev->data->dev_private; 1040 struct adapter *adapter = pi->adapter; 1041 1042 regs->version = CHELSIO_CHIP_VERSION(adapter->params.chip) | 1043 (CHELSIO_CHIP_RELEASE(adapter->params.chip) << 10) | 1044 (1 << 16); 1045 1046 if (regs->data == NULL) { 1047 regs->length = cxgbe_get_regs_len(eth_dev); 1048 regs->width = sizeof(uint32_t); 1049 1050 return 0; 1051 } 1052 1053 t4_get_regs(adapter, regs->data, (regs->length * sizeof(uint32_t))); 1054 1055 return 0; 1056 } 1057 1058 int cxgbe_mac_addr_set(struct rte_eth_dev *dev, struct rte_ether_addr *addr) 1059 { 1060 struct port_info *pi = dev->data->dev_private; 1061 int ret; 1062 1063 ret = cxgbe_mpstcam_modify(pi, (int)pi->xact_addr_filt, (u8 *)addr); 1064 if (ret < 0) { 1065 dev_err(adapter, "failed to set mac addr; err = %d\n", 1066 ret); 1067 return ret; 1068 } 1069 pi->xact_addr_filt = ret; 1070 return 0; 1071 } 1072 1073 static const struct eth_dev_ops cxgbe_eth_dev_ops = { 1074 .dev_start = cxgbe_dev_start, 1075 .dev_stop = cxgbe_dev_stop, 1076 .dev_close = cxgbe_dev_close, 1077 .promiscuous_enable = cxgbe_dev_promiscuous_enable, 1078 .promiscuous_disable = cxgbe_dev_promiscuous_disable, 1079 .allmulticast_enable = cxgbe_dev_allmulticast_enable, 1080 .allmulticast_disable = cxgbe_dev_allmulticast_disable, 1081 .dev_configure = cxgbe_dev_configure, 1082 .dev_infos_get = cxgbe_dev_info_get, 1083 .dev_supported_ptypes_get = cxgbe_dev_supported_ptypes_get, 1084 .link_update = cxgbe_dev_link_update, 1085 .dev_set_link_up = cxgbe_dev_set_link_up, 1086 .dev_set_link_down = cxgbe_dev_set_link_down, 1087 .mtu_set = cxgbe_dev_mtu_set, 1088 .tx_queue_setup = cxgbe_dev_tx_queue_setup, 1089 .tx_queue_start = cxgbe_dev_tx_queue_start, 1090 .tx_queue_stop = cxgbe_dev_tx_queue_stop, 1091 .tx_queue_release = cxgbe_dev_tx_queue_release, 1092 .rx_queue_setup = cxgbe_dev_rx_queue_setup, 1093 .rx_queue_start = cxgbe_dev_rx_queue_start, 1094 .rx_queue_stop = cxgbe_dev_rx_queue_stop, 1095 .rx_queue_release = cxgbe_dev_rx_queue_release, 1096 .filter_ctrl = cxgbe_dev_filter_ctrl, 1097 .stats_get = cxgbe_dev_stats_get, 1098 .stats_reset = cxgbe_dev_stats_reset, 1099 .flow_ctrl_get = cxgbe_flow_ctrl_get, 1100 .flow_ctrl_set = cxgbe_flow_ctrl_set, 1101 .get_eeprom_length = cxgbe_get_eeprom_length, 1102 .get_eeprom = cxgbe_get_eeprom, 1103 .set_eeprom = cxgbe_set_eeprom, 1104 .get_reg = cxgbe_get_regs, 1105 .rss_hash_update = cxgbe_dev_rss_hash_update, 1106 .rss_hash_conf_get = cxgbe_dev_rss_hash_conf_get, 1107 .mac_addr_set = cxgbe_mac_addr_set, 1108 }; 1109 1110 /* 1111 * Initialize driver 1112 * It returns 0 on success. 1113 */ 1114 static int eth_cxgbe_dev_init(struct rte_eth_dev *eth_dev) 1115 { 1116 struct rte_pci_device *pci_dev; 1117 struct port_info *pi = eth_dev->data->dev_private; 1118 struct adapter *adapter = NULL; 1119 char name[RTE_ETH_NAME_MAX_LEN]; 1120 int err = 0; 1121 1122 CXGBE_FUNC_TRACE(); 1123 1124 eth_dev->dev_ops = &cxgbe_eth_dev_ops; 1125 eth_dev->rx_pkt_burst = &cxgbe_recv_pkts; 1126 eth_dev->tx_pkt_burst = &cxgbe_xmit_pkts; 1127 pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev); 1128 1129 /* for secondary processes, we attach to ethdevs allocated by primary 1130 * and do minimal initialization. 1131 */ 1132 if (rte_eal_process_type() != RTE_PROC_PRIMARY) { 1133 int i; 1134 1135 for (i = 1; i < MAX_NPORTS; i++) { 1136 struct rte_eth_dev *rest_eth_dev; 1137 char namei[RTE_ETH_NAME_MAX_LEN]; 1138 1139 snprintf(namei, sizeof(namei), "%s_%d", 1140 pci_dev->device.name, i); 1141 rest_eth_dev = rte_eth_dev_attach_secondary(namei); 1142 if (rest_eth_dev) { 1143 rest_eth_dev->device = &pci_dev->device; 1144 rest_eth_dev->dev_ops = 1145 eth_dev->dev_ops; 1146 rest_eth_dev->rx_pkt_burst = 1147 eth_dev->rx_pkt_burst; 1148 rest_eth_dev->tx_pkt_burst = 1149 eth_dev->tx_pkt_burst; 1150 rte_eth_dev_probing_finish(rest_eth_dev); 1151 } 1152 } 1153 return 0; 1154 } 1155 1156 snprintf(name, sizeof(name), "cxgbeadapter%d", eth_dev->data->port_id); 1157 adapter = rte_zmalloc(name, sizeof(*adapter), 0); 1158 if (!adapter) 1159 return -1; 1160 1161 adapter->use_unpacked_mode = 1; 1162 adapter->regs = (void *)pci_dev->mem_resource[0].addr; 1163 if (!adapter->regs) { 1164 dev_err(adapter, "%s: cannot map device registers\n", __func__); 1165 err = -ENOMEM; 1166 goto out_free_adapter; 1167 } 1168 adapter->pdev = pci_dev; 1169 adapter->eth_dev = eth_dev; 1170 pi->adapter = adapter; 1171 1172 err = cxgbe_probe(adapter); 1173 if (err) { 1174 dev_err(adapter, "%s: cxgbe probe failed with err %d\n", 1175 __func__, err); 1176 goto out_free_adapter; 1177 } 1178 1179 return 0; 1180 1181 out_free_adapter: 1182 rte_free(adapter); 1183 return err; 1184 } 1185 1186 static int eth_cxgbe_dev_uninit(struct rte_eth_dev *eth_dev) 1187 { 1188 struct port_info *pi = eth_dev->data->dev_private; 1189 struct adapter *adap = pi->adapter; 1190 1191 /* Free up other ports and all resources */ 1192 cxgbe_close(adap); 1193 return 0; 1194 } 1195 1196 static int eth_cxgbe_pci_probe(struct rte_pci_driver *pci_drv __rte_unused, 1197 struct rte_pci_device *pci_dev) 1198 { 1199 return rte_eth_dev_pci_generic_probe(pci_dev, 1200 sizeof(struct port_info), eth_cxgbe_dev_init); 1201 } 1202 1203 static int eth_cxgbe_pci_remove(struct rte_pci_device *pci_dev) 1204 { 1205 return rte_eth_dev_pci_generic_remove(pci_dev, eth_cxgbe_dev_uninit); 1206 } 1207 1208 static struct rte_pci_driver rte_cxgbe_pmd = { 1209 .id_table = cxgb4_pci_tbl, 1210 .drv_flags = RTE_PCI_DRV_NEED_MAPPING, 1211 .probe = eth_cxgbe_pci_probe, 1212 .remove = eth_cxgbe_pci_remove, 1213 }; 1214 1215 RTE_PMD_REGISTER_PCI(net_cxgbe, rte_cxgbe_pmd); 1216 RTE_PMD_REGISTER_PCI_TABLE(net_cxgbe, cxgb4_pci_tbl); 1217 RTE_PMD_REGISTER_KMOD_DEP(net_cxgbe, "* igb_uio | uio_pci_generic | vfio-pci"); 1218 RTE_PMD_REGISTER_PARAM_STRING(net_cxgbe, 1219 CXGBE_DEVARG_KEEP_OVLAN "=<0|1> " 1220 CXGBE_DEVARG_FORCE_LINK_UP "=<0|1> "); 1221