1// SPDX-License-Identifier: GPL-2.0-only 2/* 3 * Huawei HiNIC PCI Express Linux driver 4 * Copyright(c) 2017 Huawei Technologies Co., Ltd 5 */ 6 7#include <linux/kernel.h> 8#include <linux/module.h> 9#include <linux/moduleparam.h> 10#include <linux/pci.h> 11#include <linux/device.h> 12#include <linux/errno.h> 13#include <linux/types.h> 14#include <linux/etherdevice.h> 15#include <linux/netdevice.h> 16#include <linux/slab.h> 17#include <linux/if_vlan.h> 18#include <linux/semaphore.h> 19#include <linux/workqueue.h> 20#include <net/ip.h> 21#include <net/devlink.h> 22#include <linux/bitops.h> 23#include <linux/bitmap.h> 24#include <linux/delay.h> 25#include <linux/err.h> 26 27#include "hinic_debugfs.h" 28#include "hinic_hw_qp.h" 29#include "hinic_hw_dev.h" 30#include "hinic_devlink.h" 31#include "hinic_port.h" 32#include "hinic_tx.h" 33#include "hinic_rx.h" 34#include "hinic_dev.h" 35#include "hinic_sriov.h" 36 37MODULE_AUTHOR("Huawei Technologies CO., Ltd"); 38MODULE_DESCRIPTION("Huawei Intelligent NIC driver"); 39MODULE_LICENSE("GPL"); 40 41static unsigned int tx_weight = 64; 42module_param(tx_weight, uint, 0644); 43MODULE_PARM_DESC(tx_weight, "Number Tx packets for NAPI budget (default=64)"); 44 45static unsigned int rx_weight = 64; 46module_param(rx_weight, uint, 0644); 47MODULE_PARM_DESC(rx_weight, "Number Rx packets for NAPI budget (default=64)"); 48 49#define HINIC_DEV_ID_QUAD_PORT_25GE 0x1822 50#define HINIC_DEV_ID_DUAL_PORT_100GE 0x0200 51#define HINIC_DEV_ID_DUAL_PORT_100GE_MEZZ 0x0205 52#define HINIC_DEV_ID_QUAD_PORT_25GE_MEZZ 0x0210 53#define HINIC_DEV_ID_VF 0x375e 54 55#define HINIC_WQ_NAME "hinic_dev" 56 57#define MSG_ENABLE_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | \ 58 NETIF_MSG_IFUP | \ 59 NETIF_MSG_TX_ERR | NETIF_MSG_RX_ERR) 60 61#define HINIC_LRO_MAX_WQE_NUM_DEFAULT 8 62 63#define HINIC_LRO_RX_TIMER_DEFAULT 16 64 65#define work_to_rx_mode_work(work) \ 66 container_of(work, struct hinic_rx_mode_work, work) 67 68#define rx_mode_work_to_nic_dev(rx_mode_work) \ 69 container_of(rx_mode_work, struct hinic_dev, rx_mode_work) 70 71#define HINIC_WAIT_SRIOV_CFG_TIMEOUT 15000 72 73#define HINIC_DEAULT_TXRX_MSIX_PENDING_LIMIT 2 74#define HINIC_DEAULT_TXRX_MSIX_COALESC_TIMER_CFG 32 75#define HINIC_DEAULT_TXRX_MSIX_RESEND_TIMER_CFG 7 76 77static int change_mac_addr(struct net_device *netdev, const u8 *addr); 78 79static int set_features(struct hinic_dev *nic_dev, 80 netdev_features_t pre_features, 81 netdev_features_t features, bool force_change); 82 83static void gather_rx_stats(struct hinic_rxq_stats *nic_rx_stats, struct hinic_rxq *rxq) 84{ 85 struct hinic_rxq_stats rx_stats; 86 87 hinic_rxq_get_stats(rxq, &rx_stats); 88 89 nic_rx_stats->bytes += rx_stats.bytes; 90 nic_rx_stats->pkts += rx_stats.pkts; 91 nic_rx_stats->errors += rx_stats.errors; 92 nic_rx_stats->csum_errors += rx_stats.csum_errors; 93 nic_rx_stats->other_errors += rx_stats.other_errors; 94} 95 96static void gather_tx_stats(struct hinic_txq_stats *nic_tx_stats, struct hinic_txq *txq) 97{ 98 struct hinic_txq_stats tx_stats; 99 100 hinic_txq_get_stats(txq, &tx_stats); 101 102 nic_tx_stats->bytes += tx_stats.bytes; 103 nic_tx_stats->pkts += tx_stats.pkts; 104 nic_tx_stats->tx_busy += tx_stats.tx_busy; 105 nic_tx_stats->tx_wake += tx_stats.tx_wake; 106 nic_tx_stats->tx_dropped += tx_stats.tx_dropped; 107 nic_tx_stats->big_frags_pkts += tx_stats.big_frags_pkts; 108} 109 110static void gather_nic_stats(struct hinic_dev *nic_dev, 111 struct hinic_rxq_stats *nic_rx_stats, 112 struct hinic_txq_stats *nic_tx_stats) 113{ 114 int i, num_qps = hinic_hwdev_num_qps(nic_dev->hwdev); 115 116 for (i = 0; i < num_qps; i++) 117 gather_rx_stats(nic_rx_stats, &nic_dev->rxqs[i]); 118 119 for (i = 0; i < num_qps; i++) 120 gather_tx_stats(nic_tx_stats, &nic_dev->txqs[i]); 121} 122 123/** 124 * create_txqs - Create the Logical Tx Queues of specific NIC device 125 * @nic_dev: the specific NIC device 126 * 127 * Return 0 - Success, negative - Failure 128 **/ 129static int create_txqs(struct hinic_dev *nic_dev) 130{ 131 int err, i, j, num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev); 132 struct net_device *netdev = nic_dev->netdev; 133 134 if (nic_dev->txqs) 135 return -EINVAL; 136 137 nic_dev->txqs = devm_kcalloc(&netdev->dev, num_txqs, 138 sizeof(*nic_dev->txqs), GFP_KERNEL); 139 if (!nic_dev->txqs) 140 return -ENOMEM; 141 142 hinic_sq_dbgfs_init(nic_dev); 143 144 for (i = 0; i < num_txqs; i++) { 145 struct hinic_sq *sq = hinic_hwdev_get_sq(nic_dev->hwdev, i); 146 147 err = hinic_init_txq(&nic_dev->txqs[i], sq, netdev); 148 if (err) { 149 netif_err(nic_dev, drv, netdev, 150 "Failed to init Txq\n"); 151 goto err_init_txq; 152 } 153 154 err = hinic_sq_debug_add(nic_dev, i); 155 if (err) { 156 netif_err(nic_dev, drv, netdev, 157 "Failed to add SQ%d debug\n", i); 158 goto err_add_sq_dbg; 159 } 160 161 } 162 163 return 0; 164 165err_add_sq_dbg: 166 hinic_clean_txq(&nic_dev->txqs[i]); 167err_init_txq: 168 for (j = 0; j < i; j++) { 169 hinic_sq_debug_rem(nic_dev->txqs[j].sq); 170 hinic_clean_txq(&nic_dev->txqs[j]); 171 } 172 173 hinic_sq_dbgfs_uninit(nic_dev); 174 175 devm_kfree(&netdev->dev, nic_dev->txqs); 176 return err; 177} 178 179static void enable_txqs_napi(struct hinic_dev *nic_dev) 180{ 181 int num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev); 182 int i; 183 184 for (i = 0; i < num_txqs; i++) 185 napi_enable(&nic_dev->txqs[i].napi); 186} 187 188static void disable_txqs_napi(struct hinic_dev *nic_dev) 189{ 190 int num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev); 191 int i; 192 193 for (i = 0; i < num_txqs; i++) 194 napi_disable(&nic_dev->txqs[i].napi); 195} 196 197/** 198 * free_txqs - Free the Logical Tx Queues of specific NIC device 199 * @nic_dev: the specific NIC device 200 **/ 201static void free_txqs(struct hinic_dev *nic_dev) 202{ 203 int i, num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev); 204 struct net_device *netdev = nic_dev->netdev; 205 206 if (!nic_dev->txqs) 207 return; 208 209 for (i = 0; i < num_txqs; i++) { 210 hinic_sq_debug_rem(nic_dev->txqs[i].sq); 211 hinic_clean_txq(&nic_dev->txqs[i]); 212 } 213 214 hinic_sq_dbgfs_uninit(nic_dev); 215 216 devm_kfree(&netdev->dev, nic_dev->txqs); 217 nic_dev->txqs = NULL; 218} 219 220/** 221 * create_txqs - Create the Logical Rx Queues of specific NIC device 222 * @nic_dev: the specific NIC device 223 * 224 * Return 0 - Success, negative - Failure 225 **/ 226static int create_rxqs(struct hinic_dev *nic_dev) 227{ 228 int err, i, j, num_rxqs = hinic_hwdev_num_qps(nic_dev->hwdev); 229 struct net_device *netdev = nic_dev->netdev; 230 231 if (nic_dev->rxqs) 232 return -EINVAL; 233 234 nic_dev->rxqs = devm_kcalloc(&netdev->dev, num_rxqs, 235 sizeof(*nic_dev->rxqs), GFP_KERNEL); 236 if (!nic_dev->rxqs) 237 return -ENOMEM; 238 239 hinic_rq_dbgfs_init(nic_dev); 240 241 for (i = 0; i < num_rxqs; i++) { 242 struct hinic_rq *rq = hinic_hwdev_get_rq(nic_dev->hwdev, i); 243 244 err = hinic_init_rxq(&nic_dev->rxqs[i], rq, netdev); 245 if (err) { 246 netif_err(nic_dev, drv, netdev, 247 "Failed to init rxq\n"); 248 goto err_init_rxq; 249 } 250 251 err = hinic_rq_debug_add(nic_dev, i); 252 if (err) { 253 netif_err(nic_dev, drv, netdev, 254 "Failed to add RQ%d debug\n", i); 255 goto err_add_rq_dbg; 256 } 257 } 258 259 return 0; 260 261err_add_rq_dbg: 262 hinic_clean_rxq(&nic_dev->rxqs[i]); 263err_init_rxq: 264 for (j = 0; j < i; j++) { 265 hinic_rq_debug_rem(nic_dev->rxqs[j].rq); 266 hinic_clean_rxq(&nic_dev->rxqs[j]); 267 } 268 269 hinic_rq_dbgfs_uninit(nic_dev); 270 271 devm_kfree(&netdev->dev, nic_dev->rxqs); 272 return err; 273} 274 275/** 276 * free_txqs - Free the Logical Rx Queues of specific NIC device 277 * @nic_dev: the specific NIC device 278 **/ 279static void free_rxqs(struct hinic_dev *nic_dev) 280{ 281 int i, num_rxqs = hinic_hwdev_num_qps(nic_dev->hwdev); 282 struct net_device *netdev = nic_dev->netdev; 283 284 if (!nic_dev->rxqs) 285 return; 286 287 for (i = 0; i < num_rxqs; i++) { 288 hinic_rq_debug_rem(nic_dev->rxqs[i].rq); 289 hinic_clean_rxq(&nic_dev->rxqs[i]); 290 } 291 292 hinic_rq_dbgfs_uninit(nic_dev); 293 294 devm_kfree(&netdev->dev, nic_dev->rxqs); 295 nic_dev->rxqs = NULL; 296} 297 298static int hinic_configure_max_qnum(struct hinic_dev *nic_dev) 299{ 300 int err; 301 302 err = hinic_set_max_qnum(nic_dev, nic_dev->hwdev->nic_cap.max_qps); 303 if (err) 304 return err; 305 306 return 0; 307} 308 309static int hinic_rss_init(struct hinic_dev *nic_dev) 310{ 311 u8 default_rss_key[HINIC_RSS_KEY_SIZE]; 312 u8 tmpl_idx = nic_dev->rss_tmpl_idx; 313 u32 *indir_tbl; 314 int err, i; 315 316 indir_tbl = kcalloc(HINIC_RSS_INDIR_SIZE, sizeof(u32), GFP_KERNEL); 317 if (!indir_tbl) 318 return -ENOMEM; 319 320 netdev_rss_key_fill(default_rss_key, sizeof(default_rss_key)); 321 for (i = 0; i < HINIC_RSS_INDIR_SIZE; i++) 322 indir_tbl[i] = ethtool_rxfh_indir_default(i, nic_dev->num_rss); 323 324 err = hinic_rss_set_template_tbl(nic_dev, tmpl_idx, default_rss_key); 325 if (err) 326 goto out; 327 328 err = hinic_rss_set_indir_tbl(nic_dev, tmpl_idx, indir_tbl); 329 if (err) 330 goto out; 331 332 err = hinic_set_rss_type(nic_dev, tmpl_idx, nic_dev->rss_type); 333 if (err) 334 goto out; 335 336 err = hinic_rss_set_hash_engine(nic_dev, tmpl_idx, 337 nic_dev->rss_hash_engine); 338 if (err) 339 goto out; 340 341 err = hinic_rss_cfg(nic_dev, 1, tmpl_idx); 342 if (err) 343 goto out; 344 345out: 346 kfree(indir_tbl); 347 return err; 348} 349 350static void hinic_rss_deinit(struct hinic_dev *nic_dev) 351{ 352 hinic_rss_cfg(nic_dev, 0, nic_dev->rss_tmpl_idx); 353} 354 355static void hinic_init_rss_parameters(struct hinic_dev *nic_dev) 356{ 357 nic_dev->rss_hash_engine = HINIC_RSS_HASH_ENGINE_TYPE_XOR; 358 nic_dev->rss_type.tcp_ipv6_ext = 1; 359 nic_dev->rss_type.ipv6_ext = 1; 360 nic_dev->rss_type.tcp_ipv6 = 1; 361 nic_dev->rss_type.ipv6 = 1; 362 nic_dev->rss_type.tcp_ipv4 = 1; 363 nic_dev->rss_type.ipv4 = 1; 364 nic_dev->rss_type.udp_ipv6 = 1; 365 nic_dev->rss_type.udp_ipv4 = 1; 366} 367 368static void hinic_enable_rss(struct hinic_dev *nic_dev) 369{ 370 struct net_device *netdev = nic_dev->netdev; 371 struct hinic_hwdev *hwdev = nic_dev->hwdev; 372 struct hinic_hwif *hwif = hwdev->hwif; 373 struct pci_dev *pdev = hwif->pdev; 374 int i, node, err = 0; 375 u16 num_cpus = 0; 376 377 if (nic_dev->max_qps <= 1) { 378 nic_dev->flags &= ~HINIC_RSS_ENABLE; 379 nic_dev->rss_limit = nic_dev->max_qps; 380 nic_dev->num_qps = nic_dev->max_qps; 381 nic_dev->num_rss = nic_dev->max_qps; 382 383 return; 384 } 385 386 err = hinic_rss_template_alloc(nic_dev, &nic_dev->rss_tmpl_idx); 387 if (err) { 388 netif_err(nic_dev, drv, netdev, 389 "Failed to alloc tmpl_idx for rss, can't enable rss for this function\n"); 390 nic_dev->flags &= ~HINIC_RSS_ENABLE; 391 nic_dev->max_qps = 1; 392 nic_dev->rss_limit = nic_dev->max_qps; 393 nic_dev->num_qps = nic_dev->max_qps; 394 nic_dev->num_rss = nic_dev->max_qps; 395 396 return; 397 } 398 399 nic_dev->flags |= HINIC_RSS_ENABLE; 400 401 for (i = 0; i < num_online_cpus(); i++) { 402 node = cpu_to_node(i); 403 if (node == dev_to_node(&pdev->dev)) 404 num_cpus++; 405 } 406 407 if (!num_cpus) 408 num_cpus = num_online_cpus(); 409 410 nic_dev->num_qps = hinic_hwdev_num_qps(hwdev); 411 nic_dev->num_qps = min_t(u16, nic_dev->num_qps, num_cpus); 412 413 nic_dev->rss_limit = nic_dev->num_qps; 414 nic_dev->num_rss = nic_dev->num_qps; 415 416 hinic_init_rss_parameters(nic_dev); 417 err = hinic_rss_init(nic_dev); 418 if (err) 419 netif_err(nic_dev, drv, netdev, "Failed to init rss\n"); 420} 421 422int hinic_open(struct net_device *netdev) 423{ 424 struct hinic_dev *nic_dev = netdev_priv(netdev); 425 enum hinic_port_link_state link_state; 426 int err, ret; 427 428 if (!(nic_dev->flags & HINIC_INTF_UP)) { 429 err = hinic_hwdev_ifup(nic_dev->hwdev, nic_dev->sq_depth, 430 nic_dev->rq_depth); 431 if (err) { 432 netif_err(nic_dev, drv, netdev, 433 "Failed - HW interface up\n"); 434 return err; 435 } 436 } 437 438 err = create_txqs(nic_dev); 439 if (err) { 440 netif_err(nic_dev, drv, netdev, 441 "Failed to create Tx queues\n"); 442 goto err_create_txqs; 443 } 444 445 enable_txqs_napi(nic_dev); 446 447 err = create_rxqs(nic_dev); 448 if (err) { 449 netif_err(nic_dev, drv, netdev, 450 "Failed to create Rx queues\n"); 451 goto err_create_rxqs; 452 } 453 454 hinic_enable_rss(nic_dev); 455 456 err = hinic_configure_max_qnum(nic_dev); 457 if (err) { 458 netif_err(nic_dev, drv, nic_dev->netdev, 459 "Failed to configure the maximum number of queues\n"); 460 goto err_port_state; 461 } 462 463 netif_set_real_num_tx_queues(netdev, nic_dev->num_qps); 464 netif_set_real_num_rx_queues(netdev, nic_dev->num_qps); 465 466 err = hinic_port_set_state(nic_dev, HINIC_PORT_ENABLE); 467 if (err) { 468 netif_err(nic_dev, drv, netdev, 469 "Failed to set port state\n"); 470 goto err_port_state; 471 } 472 473 err = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_ENABLE); 474 if (err) { 475 netif_err(nic_dev, drv, netdev, 476 "Failed to set func port state\n"); 477 goto err_func_port_state; 478 } 479 480 down(&nic_dev->mgmt_lock); 481 482 err = hinic_port_link_state(nic_dev, &link_state); 483 if (err) { 484 netif_err(nic_dev, drv, netdev, "Failed to get link state\n"); 485 goto err_port_link; 486 } 487 488 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) 489 hinic_notify_all_vfs_link_changed(nic_dev->hwdev, link_state); 490 491 if (link_state == HINIC_LINK_STATE_UP) { 492 nic_dev->flags |= HINIC_LINK_UP; 493 nic_dev->cable_unplugged = false; 494 nic_dev->module_unrecognized = false; 495 } 496 497 nic_dev->flags |= HINIC_INTF_UP; 498 499 if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) == 500 (HINIC_LINK_UP | HINIC_INTF_UP)) { 501 netif_info(nic_dev, drv, netdev, "link + intf UP\n"); 502 netif_carrier_on(netdev); 503 netif_tx_wake_all_queues(netdev); 504 } 505 506 up(&nic_dev->mgmt_lock); 507 508 netif_info(nic_dev, drv, netdev, "HINIC_INTF is UP\n"); 509 return 0; 510 511err_port_link: 512 up(&nic_dev->mgmt_lock); 513 ret = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE); 514 if (ret) 515 netif_warn(nic_dev, drv, netdev, 516 "Failed to revert func port state\n"); 517 518err_func_port_state: 519 ret = hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE); 520 if (ret) 521 netif_warn(nic_dev, drv, netdev, 522 "Failed to revert port state\n"); 523err_port_state: 524 free_rxqs(nic_dev); 525 if (nic_dev->flags & HINIC_RSS_ENABLE) { 526 hinic_rss_deinit(nic_dev); 527 hinic_rss_template_free(nic_dev, nic_dev->rss_tmpl_idx); 528 } 529 530err_create_rxqs: 531 disable_txqs_napi(nic_dev); 532 free_txqs(nic_dev); 533 534err_create_txqs: 535 if (!(nic_dev->flags & HINIC_INTF_UP)) 536 hinic_hwdev_ifdown(nic_dev->hwdev); 537 return err; 538} 539 540int hinic_close(struct net_device *netdev) 541{ 542 struct hinic_dev *nic_dev = netdev_priv(netdev); 543 unsigned int flags; 544 545 /* Disable txq napi firstly to aviod rewaking txq in free_tx_poll */ 546 disable_txqs_napi(nic_dev); 547 548 down(&nic_dev->mgmt_lock); 549 550 flags = nic_dev->flags; 551 nic_dev->flags &= ~HINIC_INTF_UP; 552 553 netif_carrier_off(netdev); 554 netif_tx_disable(netdev); 555 556 up(&nic_dev->mgmt_lock); 557 558 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) 559 hinic_notify_all_vfs_link_changed(nic_dev->hwdev, 0); 560 561 hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE); 562 563 hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE); 564 565 if (nic_dev->flags & HINIC_RSS_ENABLE) { 566 hinic_rss_deinit(nic_dev); 567 hinic_rss_template_free(nic_dev, nic_dev->rss_tmpl_idx); 568 } 569 570 free_rxqs(nic_dev); 571 free_txqs(nic_dev); 572 573 if (flags & HINIC_INTF_UP) 574 hinic_hwdev_ifdown(nic_dev->hwdev); 575 576 netif_info(nic_dev, drv, netdev, "HINIC_INTF is DOWN\n"); 577 return 0; 578} 579 580static int hinic_change_mtu(struct net_device *netdev, int new_mtu) 581{ 582 struct hinic_dev *nic_dev = netdev_priv(netdev); 583 int err; 584 585 netif_info(nic_dev, drv, netdev, "set_mtu = %d\n", new_mtu); 586 587 err = hinic_port_set_mtu(nic_dev, new_mtu); 588 if (err) 589 netif_err(nic_dev, drv, netdev, "Failed to set port mtu\n"); 590 else 591 netdev->mtu = new_mtu; 592 593 return err; 594} 595 596/** 597 * change_mac_addr - change the main mac address of network device 598 * @netdev: network device 599 * @addr: mac address to set 600 * 601 * Return 0 - Success, negative - Failure 602 **/ 603static int change_mac_addr(struct net_device *netdev, const u8 *addr) 604{ 605 struct hinic_dev *nic_dev = netdev_priv(netdev); 606 u16 vid = 0; 607 int err; 608 609 if (!is_valid_ether_addr(addr)) 610 return -EADDRNOTAVAIL; 611 612 netif_info(nic_dev, drv, netdev, "change mac addr = %02x %02x %02x %02x %02x %02x\n", 613 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 614 615 down(&nic_dev->mgmt_lock); 616 617 do { 618 err = hinic_port_del_mac(nic_dev, netdev->dev_addr, vid); 619 if (err) { 620 netif_err(nic_dev, drv, netdev, 621 "Failed to delete mac\n"); 622 break; 623 } 624 625 err = hinic_port_add_mac(nic_dev, addr, vid); 626 if (err) { 627 netif_err(nic_dev, drv, netdev, "Failed to add mac\n"); 628 break; 629 } 630 631 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1); 632 } while (vid != VLAN_N_VID); 633 634 up(&nic_dev->mgmt_lock); 635 return err; 636} 637 638static int hinic_set_mac_addr(struct net_device *netdev, void *addr) 639{ 640 unsigned char new_mac[ETH_ALEN]; 641 struct sockaddr *saddr = addr; 642 int err; 643 644 memcpy(new_mac, saddr->sa_data, ETH_ALEN); 645 646 err = change_mac_addr(netdev, new_mac); 647 if (!err) 648 memcpy(netdev->dev_addr, new_mac, ETH_ALEN); 649 650 return err; 651} 652 653/** 654 * add_mac_addr - add mac address to network device 655 * @netdev: network device 656 * @addr: mac address to add 657 * 658 * Return 0 - Success, negative - Failure 659 **/ 660static int add_mac_addr(struct net_device *netdev, const u8 *addr) 661{ 662 struct hinic_dev *nic_dev = netdev_priv(netdev); 663 u16 vid = 0; 664 int err; 665 666 netif_info(nic_dev, drv, netdev, "set mac addr = %02x %02x %02x %02x %02x %02x\n", 667 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 668 669 down(&nic_dev->mgmt_lock); 670 671 do { 672 err = hinic_port_add_mac(nic_dev, addr, vid); 673 if (err) { 674 netif_err(nic_dev, drv, netdev, "Failed to add mac\n"); 675 break; 676 } 677 678 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1); 679 } while (vid != VLAN_N_VID); 680 681 up(&nic_dev->mgmt_lock); 682 return err; 683} 684 685/** 686 * remove_mac_addr - remove mac address from network device 687 * @netdev: network device 688 * @addr: mac address to remove 689 * 690 * Return 0 - Success, negative - Failure 691 **/ 692static int remove_mac_addr(struct net_device *netdev, const u8 *addr) 693{ 694 struct hinic_dev *nic_dev = netdev_priv(netdev); 695 u16 vid = 0; 696 int err; 697 698 if (!is_valid_ether_addr(addr)) 699 return -EADDRNOTAVAIL; 700 701 netif_info(nic_dev, drv, netdev, "remove mac addr = %02x %02x %02x %02x %02x %02x\n", 702 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 703 704 down(&nic_dev->mgmt_lock); 705 706 do { 707 err = hinic_port_del_mac(nic_dev, addr, vid); 708 if (err) { 709 netif_err(nic_dev, drv, netdev, 710 "Failed to delete mac\n"); 711 break; 712 } 713 714 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1); 715 } while (vid != VLAN_N_VID); 716 717 up(&nic_dev->mgmt_lock); 718 return err; 719} 720 721static int hinic_vlan_rx_add_vid(struct net_device *netdev, 722 __always_unused __be16 proto, u16 vid) 723{ 724 struct hinic_dev *nic_dev = netdev_priv(netdev); 725 int ret, err; 726 727 netif_info(nic_dev, drv, netdev, "add vid = %d\n", vid); 728 729 down(&nic_dev->mgmt_lock); 730 731 err = hinic_port_add_vlan(nic_dev, vid); 732 if (err) { 733 netif_err(nic_dev, drv, netdev, "Failed to add vlan\n"); 734 goto err_vlan_add; 735 } 736 737 err = hinic_port_add_mac(nic_dev, netdev->dev_addr, vid); 738 if (err && err != HINIC_PF_SET_VF_ALREADY) { 739 netif_err(nic_dev, drv, netdev, "Failed to set mac\n"); 740 goto err_add_mac; 741 } 742 743 bitmap_set(nic_dev->vlan_bitmap, vid, 1); 744 745 up(&nic_dev->mgmt_lock); 746 return 0; 747 748err_add_mac: 749 ret = hinic_port_del_vlan(nic_dev, vid); 750 if (ret) 751 netif_err(nic_dev, drv, netdev, 752 "Failed to revert by removing vlan\n"); 753 754err_vlan_add: 755 up(&nic_dev->mgmt_lock); 756 return err; 757} 758 759static int hinic_vlan_rx_kill_vid(struct net_device *netdev, 760 __always_unused __be16 proto, u16 vid) 761{ 762 struct hinic_dev *nic_dev = netdev_priv(netdev); 763 int err; 764 765 netif_info(nic_dev, drv, netdev, "remove vid = %d\n", vid); 766 767 down(&nic_dev->mgmt_lock); 768 769 err = hinic_port_del_vlan(nic_dev, vid); 770 if (err) { 771 netif_err(nic_dev, drv, netdev, "Failed to delete vlan\n"); 772 goto err_del_vlan; 773 } 774 775 bitmap_clear(nic_dev->vlan_bitmap, vid, 1); 776 777 up(&nic_dev->mgmt_lock); 778 return 0; 779 780err_del_vlan: 781 up(&nic_dev->mgmt_lock); 782 return err; 783} 784 785static void set_rx_mode(struct work_struct *work) 786{ 787 struct hinic_rx_mode_work *rx_mode_work = work_to_rx_mode_work(work); 788 struct hinic_dev *nic_dev = rx_mode_work_to_nic_dev(rx_mode_work); 789 790 hinic_port_set_rx_mode(nic_dev, rx_mode_work->rx_mode); 791 792 __dev_uc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr); 793 __dev_mc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr); 794} 795 796static void hinic_set_rx_mode(struct net_device *netdev) 797{ 798 struct hinic_dev *nic_dev = netdev_priv(netdev); 799 struct hinic_rx_mode_work *rx_mode_work; 800 u32 rx_mode; 801 802 rx_mode_work = &nic_dev->rx_mode_work; 803 804 rx_mode = HINIC_RX_MODE_UC | 805 HINIC_RX_MODE_MC | 806 HINIC_RX_MODE_BC; 807 808 if (netdev->flags & IFF_PROMISC) { 809 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) 810 rx_mode |= HINIC_RX_MODE_PROMISC; 811 } else if (netdev->flags & IFF_ALLMULTI) { 812 rx_mode |= HINIC_RX_MODE_MC_ALL; 813 } 814 815 rx_mode_work->rx_mode = rx_mode; 816 817 queue_work(nic_dev->workq, &rx_mode_work->work); 818} 819 820static void hinic_tx_timeout(struct net_device *netdev, unsigned int txqueue) 821{ 822 struct hinic_dev *nic_dev = netdev_priv(netdev); 823 u16 sw_pi, hw_ci, sw_ci; 824 struct hinic_sq *sq; 825 u16 num_sqs, q_id; 826 827 num_sqs = hinic_hwdev_num_qps(nic_dev->hwdev); 828 829 netif_err(nic_dev, drv, netdev, "Tx timeout\n"); 830 831 for (q_id = 0; q_id < num_sqs; q_id++) { 832 if (!netif_xmit_stopped(netdev_get_tx_queue(netdev, q_id))) 833 continue; 834 835 sq = hinic_hwdev_get_sq(nic_dev->hwdev, q_id); 836 sw_pi = atomic_read(&sq->wq->prod_idx) & sq->wq->mask; 837 hw_ci = be16_to_cpu(*(u16 *)(sq->hw_ci_addr)) & sq->wq->mask; 838 sw_ci = atomic_read(&sq->wq->cons_idx) & sq->wq->mask; 839 netif_err(nic_dev, drv, netdev, "Txq%d: sw_pi: %d, hw_ci: %d, sw_ci: %d, napi->state: 0x%lx\n", 840 q_id, sw_pi, hw_ci, sw_ci, 841 nic_dev->txqs[q_id].napi.state); 842 } 843} 844 845static void hinic_get_stats64(struct net_device *netdev, 846 struct rtnl_link_stats64 *stats) 847{ 848 struct hinic_dev *nic_dev = netdev_priv(netdev); 849 struct hinic_rxq_stats nic_rx_stats = {}; 850 struct hinic_txq_stats nic_tx_stats = {}; 851 852 if (nic_dev->flags & HINIC_INTF_UP) 853 gather_nic_stats(nic_dev, &nic_rx_stats, &nic_tx_stats); 854 855 stats->rx_bytes = nic_rx_stats.bytes; 856 stats->rx_packets = nic_rx_stats.pkts; 857 stats->rx_errors = nic_rx_stats.errors; 858 859 stats->tx_bytes = nic_tx_stats.bytes; 860 stats->tx_packets = nic_tx_stats.pkts; 861 stats->tx_errors = nic_tx_stats.tx_dropped; 862} 863 864static int hinic_set_features(struct net_device *netdev, 865 netdev_features_t features) 866{ 867 struct hinic_dev *nic_dev = netdev_priv(netdev); 868 869 return set_features(nic_dev, nic_dev->netdev->features, 870 features, false); 871} 872 873static netdev_features_t hinic_fix_features(struct net_device *netdev, 874 netdev_features_t features) 875{ 876 struct hinic_dev *nic_dev = netdev_priv(netdev); 877 878 /* If Rx checksum is disabled, then LRO should also be disabled */ 879 if (!(features & NETIF_F_RXCSUM)) { 880 netif_info(nic_dev, drv, netdev, "disabling LRO as RXCSUM is off\n"); 881 features &= ~NETIF_F_LRO; 882 } 883 884 return features; 885} 886 887static const struct net_device_ops hinic_netdev_ops = { 888 .ndo_open = hinic_open, 889 .ndo_stop = hinic_close, 890 .ndo_change_mtu = hinic_change_mtu, 891 .ndo_set_mac_address = hinic_set_mac_addr, 892 .ndo_validate_addr = eth_validate_addr, 893 .ndo_vlan_rx_add_vid = hinic_vlan_rx_add_vid, 894 .ndo_vlan_rx_kill_vid = hinic_vlan_rx_kill_vid, 895 .ndo_set_rx_mode = hinic_set_rx_mode, 896 .ndo_start_xmit = hinic_xmit_frame, 897 .ndo_tx_timeout = hinic_tx_timeout, 898 .ndo_get_stats64 = hinic_get_stats64, 899 .ndo_fix_features = hinic_fix_features, 900 .ndo_set_features = hinic_set_features, 901 .ndo_set_vf_mac = hinic_ndo_set_vf_mac, 902 .ndo_set_vf_vlan = hinic_ndo_set_vf_vlan, 903 .ndo_get_vf_config = hinic_ndo_get_vf_config, 904 .ndo_set_vf_trust = hinic_ndo_set_vf_trust, 905 .ndo_set_vf_rate = hinic_ndo_set_vf_bw, 906 .ndo_set_vf_spoofchk = hinic_ndo_set_vf_spoofchk, 907 .ndo_set_vf_link_state = hinic_ndo_set_vf_link_state, 908}; 909 910static const struct net_device_ops hinicvf_netdev_ops = { 911 .ndo_open = hinic_open, 912 .ndo_stop = hinic_close, 913 .ndo_change_mtu = hinic_change_mtu, 914 .ndo_set_mac_address = hinic_set_mac_addr, 915 .ndo_validate_addr = eth_validate_addr, 916 .ndo_vlan_rx_add_vid = hinic_vlan_rx_add_vid, 917 .ndo_vlan_rx_kill_vid = hinic_vlan_rx_kill_vid, 918 .ndo_set_rx_mode = hinic_set_rx_mode, 919 .ndo_start_xmit = hinic_xmit_frame, 920 .ndo_tx_timeout = hinic_tx_timeout, 921 .ndo_get_stats64 = hinic_get_stats64, 922 .ndo_fix_features = hinic_fix_features, 923 .ndo_set_features = hinic_set_features, 924}; 925 926static void netdev_features_init(struct net_device *netdev) 927{ 928 netdev->hw_features = NETIF_F_SG | NETIF_F_HIGHDMA | NETIF_F_IP_CSUM | 929 NETIF_F_IPV6_CSUM | NETIF_F_TSO | NETIF_F_TSO6 | 930 NETIF_F_RXCSUM | NETIF_F_LRO | 931 NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX | 932 NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_UDP_TUNNEL_CSUM; 933 934 netdev->vlan_features = netdev->hw_features; 935 936 netdev->features = netdev->hw_features | NETIF_F_HW_VLAN_CTAG_FILTER; 937 938 netdev->hw_enc_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SCTP_CRC | 939 NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_TSO_ECN | 940 NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_GSO_UDP_TUNNEL; 941} 942 943static void hinic_refresh_nic_cfg(struct hinic_dev *nic_dev) 944{ 945 struct hinic_nic_cfg *nic_cfg = &nic_dev->hwdev->func_to_io.nic_cfg; 946 struct hinic_pause_config pause_info = {0}; 947 struct hinic_port_cap port_cap = {0}; 948 949 if (hinic_port_get_cap(nic_dev, &port_cap)) 950 return; 951 952 mutex_lock(&nic_cfg->cfg_mutex); 953 if (nic_cfg->pause_set || !port_cap.autoneg_state) { 954 nic_cfg->auto_neg = port_cap.autoneg_state; 955 pause_info.auto_neg = nic_cfg->auto_neg; 956 pause_info.rx_pause = nic_cfg->rx_pause; 957 pause_info.tx_pause = nic_cfg->tx_pause; 958 hinic_set_hw_pause_info(nic_dev->hwdev, &pause_info); 959 } 960 mutex_unlock(&nic_cfg->cfg_mutex); 961} 962 963/** 964 * link_status_event_handler - link event handler 965 * @handle: nic device for the handler 966 * @buf_in: input buffer 967 * @in_size: input size 968 * @buf_out: output buffer 969 * @out_size: returned output size 970 * 971 * Return 0 - Success, negative - Failure 972 **/ 973static void link_status_event_handler(void *handle, void *buf_in, u16 in_size, 974 void *buf_out, u16 *out_size) 975{ 976 struct hinic_port_link_status *link_status, *ret_link_status; 977 struct hinic_dev *nic_dev = handle; 978 979 link_status = buf_in; 980 981 if (link_status->link == HINIC_LINK_STATE_UP) { 982 down(&nic_dev->mgmt_lock); 983 984 nic_dev->flags |= HINIC_LINK_UP; 985 nic_dev->cable_unplugged = false; 986 nic_dev->module_unrecognized = false; 987 988 if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) == 989 (HINIC_LINK_UP | HINIC_INTF_UP)) { 990 netif_carrier_on(nic_dev->netdev); 991 netif_tx_wake_all_queues(nic_dev->netdev); 992 } 993 994 up(&nic_dev->mgmt_lock); 995 996 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) 997 hinic_refresh_nic_cfg(nic_dev); 998 999 netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is UP\n"); 1000 } else { 1001 down(&nic_dev->mgmt_lock); 1002 1003 nic_dev->flags &= ~HINIC_LINK_UP; 1004 1005 netif_carrier_off(nic_dev->netdev); 1006 netif_tx_disable(nic_dev->netdev); 1007 1008 up(&nic_dev->mgmt_lock); 1009 1010 netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is DOWN\n"); 1011 } 1012 1013 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) 1014 hinic_notify_all_vfs_link_changed(nic_dev->hwdev, 1015 link_status->link); 1016 1017 ret_link_status = buf_out; 1018 ret_link_status->status = 0; 1019 1020 *out_size = sizeof(*ret_link_status); 1021} 1022 1023static void cable_plug_event(void *handle, 1024 void *buf_in, u16 in_size, 1025 void *buf_out, u16 *out_size) 1026{ 1027 struct hinic_cable_plug_event *plug_event = buf_in; 1028 struct hinic_dev *nic_dev = handle; 1029 1030 nic_dev->cable_unplugged = plug_event->plugged ? false : true; 1031 1032 *out_size = sizeof(*plug_event); 1033 plug_event = buf_out; 1034 plug_event->status = 0; 1035} 1036 1037static void link_err_event(void *handle, 1038 void *buf_in, u16 in_size, 1039 void *buf_out, u16 *out_size) 1040{ 1041 struct hinic_link_err_event *link_err = buf_in; 1042 struct hinic_dev *nic_dev = handle; 1043 1044 if (link_err->err_type >= LINK_ERR_NUM) 1045 netif_info(nic_dev, link, nic_dev->netdev, 1046 "Link failed, Unknown error type: 0x%x\n", 1047 link_err->err_type); 1048 else 1049 nic_dev->module_unrecognized = true; 1050 1051 *out_size = sizeof(*link_err); 1052 link_err = buf_out; 1053 link_err->status = 0; 1054} 1055 1056static int set_features(struct hinic_dev *nic_dev, 1057 netdev_features_t pre_features, 1058 netdev_features_t features, bool force_change) 1059{ 1060 netdev_features_t changed = force_change ? ~0 : pre_features ^ features; 1061 u32 csum_en = HINIC_RX_CSUM_OFFLOAD_EN; 1062 netdev_features_t failed_features = 0; 1063 int ret = 0; 1064 int err = 0; 1065 1066 if (changed & NETIF_F_TSO) { 1067 ret = hinic_port_set_tso(nic_dev, (features & NETIF_F_TSO) ? 1068 HINIC_TSO_ENABLE : HINIC_TSO_DISABLE); 1069 if (ret) { 1070 err = ret; 1071 failed_features |= NETIF_F_TSO; 1072 } 1073 } 1074 1075 if (changed & NETIF_F_RXCSUM) { 1076 ret = hinic_set_rx_csum_offload(nic_dev, csum_en); 1077 if (ret) { 1078 err = ret; 1079 failed_features |= NETIF_F_RXCSUM; 1080 } 1081 } 1082 1083 if (changed & NETIF_F_LRO) { 1084 ret = hinic_set_rx_lro_state(nic_dev, 1085 !!(features & NETIF_F_LRO), 1086 HINIC_LRO_RX_TIMER_DEFAULT, 1087 HINIC_LRO_MAX_WQE_NUM_DEFAULT); 1088 if (ret) { 1089 err = ret; 1090 failed_features |= NETIF_F_LRO; 1091 } 1092 } 1093 1094 if (changed & NETIF_F_HW_VLAN_CTAG_RX) { 1095 ret = hinic_set_rx_vlan_offload(nic_dev, 1096 !!(features & 1097 NETIF_F_HW_VLAN_CTAG_RX)); 1098 if (ret) { 1099 err = ret; 1100 failed_features |= NETIF_F_HW_VLAN_CTAG_RX; 1101 } 1102 } 1103 1104 if (err) { 1105 nic_dev->netdev->features = features ^ failed_features; 1106 return -EIO; 1107 } 1108 1109 return 0; 1110} 1111 1112static int hinic_init_intr_coalesce(struct hinic_dev *nic_dev) 1113{ 1114 u64 size; 1115 u16 i; 1116 1117 size = sizeof(struct hinic_intr_coal_info) * nic_dev->max_qps; 1118 nic_dev->rx_intr_coalesce = kzalloc(size, GFP_KERNEL); 1119 if (!nic_dev->rx_intr_coalesce) 1120 return -ENOMEM; 1121 nic_dev->tx_intr_coalesce = kzalloc(size, GFP_KERNEL); 1122 if (!nic_dev->tx_intr_coalesce) { 1123 kfree(nic_dev->rx_intr_coalesce); 1124 return -ENOMEM; 1125 } 1126 1127 for (i = 0; i < nic_dev->max_qps; i++) { 1128 nic_dev->rx_intr_coalesce[i].pending_limt = 1129 HINIC_DEAULT_TXRX_MSIX_PENDING_LIMIT; 1130 nic_dev->rx_intr_coalesce[i].coalesce_timer_cfg = 1131 HINIC_DEAULT_TXRX_MSIX_COALESC_TIMER_CFG; 1132 nic_dev->rx_intr_coalesce[i].resend_timer_cfg = 1133 HINIC_DEAULT_TXRX_MSIX_RESEND_TIMER_CFG; 1134 nic_dev->tx_intr_coalesce[i].pending_limt = 1135 HINIC_DEAULT_TXRX_MSIX_PENDING_LIMIT; 1136 nic_dev->tx_intr_coalesce[i].coalesce_timer_cfg = 1137 HINIC_DEAULT_TXRX_MSIX_COALESC_TIMER_CFG; 1138 nic_dev->tx_intr_coalesce[i].resend_timer_cfg = 1139 HINIC_DEAULT_TXRX_MSIX_RESEND_TIMER_CFG; 1140 } 1141 1142 return 0; 1143} 1144 1145static void hinic_free_intr_coalesce(struct hinic_dev *nic_dev) 1146{ 1147 kfree(nic_dev->tx_intr_coalesce); 1148 kfree(nic_dev->rx_intr_coalesce); 1149} 1150 1151/** 1152 * nic_dev_init - Initialize the NIC device 1153 * @pdev: the NIC pci device 1154 * 1155 * Return 0 - Success, negative - Failure 1156 **/ 1157static int nic_dev_init(struct pci_dev *pdev) 1158{ 1159 struct hinic_rx_mode_work *rx_mode_work; 1160 struct hinic_dev *nic_dev; 1161 struct net_device *netdev; 1162 struct hinic_hwdev *hwdev; 1163 struct devlink *devlink; 1164 int err, num_qps; 1165 1166 devlink = hinic_devlink_alloc(); 1167 if (!devlink) { 1168 dev_err(&pdev->dev, "Hinic devlink alloc failed\n"); 1169 return -ENOMEM; 1170 } 1171 1172 hwdev = hinic_init_hwdev(pdev, devlink); 1173 if (IS_ERR(hwdev)) { 1174 dev_err(&pdev->dev, "Failed to initialize HW device\n"); 1175 hinic_devlink_free(devlink); 1176 return PTR_ERR(hwdev); 1177 } 1178 1179 num_qps = hinic_hwdev_num_qps(hwdev); 1180 if (num_qps <= 0) { 1181 dev_err(&pdev->dev, "Invalid number of QPS\n"); 1182 err = -EINVAL; 1183 goto err_num_qps; 1184 } 1185 1186 netdev = alloc_etherdev_mq(sizeof(*nic_dev), num_qps); 1187 if (!netdev) { 1188 dev_err(&pdev->dev, "Failed to allocate Ethernet device\n"); 1189 err = -ENOMEM; 1190 goto err_alloc_etherdev; 1191 } 1192 1193 if (!HINIC_IS_VF(hwdev->hwif)) 1194 netdev->netdev_ops = &hinic_netdev_ops; 1195 else 1196 netdev->netdev_ops = &hinicvf_netdev_ops; 1197 1198 netdev->max_mtu = ETH_MAX_MTU; 1199 1200 nic_dev = netdev_priv(netdev); 1201 nic_dev->netdev = netdev; 1202 nic_dev->hwdev = hwdev; 1203 nic_dev->msg_enable = MSG_ENABLE_DEFAULT; 1204 nic_dev->flags = 0; 1205 nic_dev->txqs = NULL; 1206 nic_dev->rxqs = NULL; 1207 nic_dev->tx_weight = tx_weight; 1208 nic_dev->rx_weight = rx_weight; 1209 nic_dev->sq_depth = HINIC_SQ_DEPTH; 1210 nic_dev->rq_depth = HINIC_RQ_DEPTH; 1211 nic_dev->sriov_info.hwdev = hwdev; 1212 nic_dev->sriov_info.pdev = pdev; 1213 nic_dev->max_qps = num_qps; 1214 nic_dev->devlink = devlink; 1215 1216 hinic_set_ethtool_ops(netdev); 1217 1218 sema_init(&nic_dev->mgmt_lock, 1); 1219 1220 nic_dev->vlan_bitmap = devm_bitmap_zalloc(&pdev->dev, VLAN_N_VID, 1221 GFP_KERNEL); 1222 if (!nic_dev->vlan_bitmap) { 1223 err = -ENOMEM; 1224 goto err_vlan_bitmap; 1225 } 1226 1227 nic_dev->workq = create_singlethread_workqueue(HINIC_WQ_NAME); 1228 if (!nic_dev->workq) { 1229 err = -ENOMEM; 1230 goto err_workq; 1231 } 1232 1233 pci_set_drvdata(pdev, netdev); 1234 1235 err = hinic_port_get_mac(nic_dev, netdev->dev_addr); 1236 if (err) { 1237 dev_err(&pdev->dev, "Failed to get mac address\n"); 1238 goto err_get_mac; 1239 } 1240 1241 if (!is_valid_ether_addr(netdev->dev_addr)) { 1242 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) { 1243 dev_err(&pdev->dev, "Invalid MAC address\n"); 1244 err = -EIO; 1245 goto err_add_mac; 1246 } 1247 1248 dev_info(&pdev->dev, "Invalid MAC address %pM, using random\n", 1249 netdev->dev_addr); 1250 eth_hw_addr_random(netdev); 1251 } 1252 1253 err = hinic_port_add_mac(nic_dev, netdev->dev_addr, 0); 1254 if (err && err != HINIC_PF_SET_VF_ALREADY) { 1255 dev_err(&pdev->dev, "Failed to add mac\n"); 1256 goto err_add_mac; 1257 } 1258 1259 err = hinic_port_set_mtu(nic_dev, netdev->mtu); 1260 if (err) { 1261 dev_err(&pdev->dev, "Failed to set mtu\n"); 1262 goto err_set_mtu; 1263 } 1264 1265 rx_mode_work = &nic_dev->rx_mode_work; 1266 INIT_WORK(&rx_mode_work->work, set_rx_mode); 1267 1268 netdev_features_init(netdev); 1269 1270 netif_carrier_off(netdev); 1271 1272 hinic_hwdev_cb_register(nic_dev->hwdev, HINIC_MGMT_MSG_CMD_LINK_STATUS, 1273 nic_dev, link_status_event_handler); 1274 hinic_hwdev_cb_register(nic_dev->hwdev, 1275 HINIC_MGMT_MSG_CMD_CABLE_PLUG_EVENT, 1276 nic_dev, cable_plug_event); 1277 hinic_hwdev_cb_register(nic_dev->hwdev, 1278 HINIC_MGMT_MSG_CMD_LINK_ERR_EVENT, 1279 nic_dev, link_err_event); 1280 1281 err = set_features(nic_dev, 0, nic_dev->netdev->features, true); 1282 if (err) 1283 goto err_set_features; 1284 1285 /* enable pause and disable pfc by default */ 1286 err = hinic_dcb_set_pfc(nic_dev->hwdev, 0, 0); 1287 if (err) 1288 goto err_set_pfc; 1289 1290 SET_NETDEV_DEV(netdev, &pdev->dev); 1291 1292 err = hinic_init_intr_coalesce(nic_dev); 1293 if (err) { 1294 dev_err(&pdev->dev, "Failed to init_intr_coalesce\n"); 1295 goto err_init_intr; 1296 } 1297 1298 hinic_dbg_init(nic_dev); 1299 1300 hinic_func_tbl_dbgfs_init(nic_dev); 1301 1302 err = hinic_func_table_debug_add(nic_dev); 1303 if (err) { 1304 dev_err(&pdev->dev, "Failed to add func_table debug\n"); 1305 goto err_add_func_table_dbg; 1306 } 1307 1308 err = register_netdev(netdev); 1309 if (err) { 1310 dev_err(&pdev->dev, "Failed to register netdev\n"); 1311 goto err_reg_netdev; 1312 } 1313 1314 return 0; 1315 1316err_reg_netdev: 1317 hinic_func_table_debug_rem(nic_dev); 1318err_add_func_table_dbg: 1319 hinic_func_tbl_dbgfs_uninit(nic_dev); 1320 hinic_dbg_uninit(nic_dev); 1321 hinic_free_intr_coalesce(nic_dev); 1322err_init_intr: 1323err_set_pfc: 1324err_set_features: 1325 hinic_hwdev_cb_unregister(nic_dev->hwdev, 1326 HINIC_MGMT_MSG_CMD_LINK_ERR_EVENT); 1327 hinic_hwdev_cb_unregister(nic_dev->hwdev, 1328 HINIC_MGMT_MSG_CMD_CABLE_PLUG_EVENT); 1329 hinic_hwdev_cb_unregister(nic_dev->hwdev, 1330 HINIC_MGMT_MSG_CMD_LINK_STATUS); 1331 cancel_work_sync(&rx_mode_work->work); 1332 1333err_set_mtu: 1334 hinic_port_del_mac(nic_dev, netdev->dev_addr, 0); 1335err_add_mac: 1336err_get_mac: 1337 pci_set_drvdata(pdev, NULL); 1338 destroy_workqueue(nic_dev->workq); 1339err_workq: 1340err_vlan_bitmap: 1341 free_netdev(netdev); 1342 1343err_alloc_etherdev: 1344err_num_qps: 1345 hinic_free_hwdev(hwdev); 1346 hinic_devlink_free(devlink); 1347 return err; 1348} 1349 1350static int hinic_probe(struct pci_dev *pdev, 1351 const struct pci_device_id *id) 1352{ 1353 int err = pci_enable_device(pdev); 1354 1355 if (err) { 1356 dev_err(&pdev->dev, "Failed to enable PCI device\n"); 1357 return err; 1358 } 1359 1360 err = pci_request_regions(pdev, HINIC_DRV_NAME); 1361 if (err) { 1362 dev_err(&pdev->dev, "Failed to request PCI regions\n"); 1363 goto err_pci_regions; 1364 } 1365 1366 pci_set_master(pdev); 1367 1368 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); 1369 if (err) { 1370 dev_warn(&pdev->dev, "Couldn't set 64-bit DMA mask\n"); 1371 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 1372 if (err) { 1373 dev_err(&pdev->dev, "Failed to set DMA mask\n"); 1374 goto err_dma_mask; 1375 } 1376 } 1377 1378 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); 1379 if (err) { 1380 dev_warn(&pdev->dev, 1381 "Couldn't set 64-bit consistent DMA mask\n"); 1382 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); 1383 if (err) { 1384 dev_err(&pdev->dev, 1385 "Failed to set consistent DMA mask\n"); 1386 goto err_dma_consistent_mask; 1387 } 1388 } 1389 1390 err = nic_dev_init(pdev); 1391 if (err) { 1392 dev_err(&pdev->dev, "Failed to initialize NIC device\n"); 1393 goto err_nic_dev_init; 1394 } 1395 1396 dev_info(&pdev->dev, "HiNIC driver - probed\n"); 1397 return 0; 1398 1399err_nic_dev_init: 1400err_dma_consistent_mask: 1401err_dma_mask: 1402 pci_release_regions(pdev); 1403 1404err_pci_regions: 1405 pci_disable_device(pdev); 1406 return err; 1407} 1408 1409#define HINIC_WAIT_SRIOV_CFG_TIMEOUT 15000 1410 1411static void wait_sriov_cfg_complete(struct hinic_dev *nic_dev) 1412{ 1413 struct hinic_sriov_info *sriov_info = &nic_dev->sriov_info; 1414 u32 loop_cnt = 0; 1415 1416 set_bit(HINIC_FUNC_REMOVE, &sriov_info->state); 1417 usleep_range(9900, 10000); 1418 1419 while (loop_cnt < HINIC_WAIT_SRIOV_CFG_TIMEOUT) { 1420 if (!test_bit(HINIC_SRIOV_ENABLE, &sriov_info->state) && 1421 !test_bit(HINIC_SRIOV_DISABLE, &sriov_info->state)) 1422 return; 1423 1424 usleep_range(9900, 10000); 1425 loop_cnt++; 1426 } 1427} 1428 1429static void hinic_remove(struct pci_dev *pdev) 1430{ 1431 struct net_device *netdev = pci_get_drvdata(pdev); 1432 struct hinic_dev *nic_dev = netdev_priv(netdev); 1433 struct devlink *devlink = nic_dev->devlink; 1434 struct hinic_rx_mode_work *rx_mode_work; 1435 1436 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) { 1437 wait_sriov_cfg_complete(nic_dev); 1438 hinic_pci_sriov_disable(pdev); 1439 } 1440 1441 unregister_netdev(netdev); 1442 1443 hinic_func_table_debug_rem(nic_dev); 1444 1445 hinic_func_tbl_dbgfs_uninit(nic_dev); 1446 1447 hinic_dbg_uninit(nic_dev); 1448 1449 hinic_free_intr_coalesce(nic_dev); 1450 1451 hinic_port_del_mac(nic_dev, netdev->dev_addr, 0); 1452 1453 hinic_hwdev_cb_unregister(nic_dev->hwdev, 1454 HINIC_MGMT_MSG_CMD_LINK_ERR_EVENT); 1455 hinic_hwdev_cb_unregister(nic_dev->hwdev, 1456 HINIC_MGMT_MSG_CMD_CABLE_PLUG_EVENT); 1457 hinic_hwdev_cb_unregister(nic_dev->hwdev, 1458 HINIC_MGMT_MSG_CMD_LINK_STATUS); 1459 1460 rx_mode_work = &nic_dev->rx_mode_work; 1461 cancel_work_sync(&rx_mode_work->work); 1462 1463 pci_set_drvdata(pdev, NULL); 1464 1465 destroy_workqueue(nic_dev->workq); 1466 1467 hinic_free_hwdev(nic_dev->hwdev); 1468 1469 free_netdev(netdev); 1470 1471 hinic_devlink_free(devlink); 1472 1473 pci_release_regions(pdev); 1474 pci_disable_device(pdev); 1475 1476 dev_info(&pdev->dev, "HiNIC driver - removed\n"); 1477} 1478 1479static void hinic_shutdown(struct pci_dev *pdev) 1480{ 1481 pci_disable_device(pdev); 1482} 1483 1484static const struct pci_device_id hinic_pci_table[] = { 1485 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_QUAD_PORT_25GE), 0}, 1486 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_100GE), 0}, 1487 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_100GE_MEZZ), 0}, 1488 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_QUAD_PORT_25GE_MEZZ), 0}, 1489 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_VF), 0}, 1490 { 0, 0} 1491}; 1492MODULE_DEVICE_TABLE(pci, hinic_pci_table); 1493 1494static struct pci_driver hinic_driver = { 1495 .name = HINIC_DRV_NAME, 1496 .id_table = hinic_pci_table, 1497 .probe = hinic_probe, 1498 .remove = hinic_remove, 1499 .shutdown = hinic_shutdown, 1500 .sriov_configure = hinic_pci_sriov_configure, 1501}; 1502 1503static int __init hinic_module_init(void) 1504{ 1505 int ret; 1506 1507 hinic_dbg_register_debugfs(HINIC_DRV_NAME); 1508 1509 ret = pci_register_driver(&hinic_driver); 1510 if (ret) 1511 hinic_dbg_unregister_debugfs(); 1512 1513 return ret; 1514} 1515 1516static void __exit hinic_module_exit(void) 1517{ 1518 pci_unregister_driver(&hinic_driver); 1519 hinic_dbg_unregister_debugfs(); 1520} 1521 1522module_init(hinic_module_init); 1523module_exit(hinic_module_exit); 1524