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_hw_qp.h" 28 #include "hinic_hw_dev.h" 29 #include "hinic_devlink.h" 30 #include "hinic_port.h" 31 #include "hinic_tx.h" 32 #include "hinic_rx.h" 33 #include "hinic_dev.h" 34 #include "hinic_sriov.h" 35 36 MODULE_AUTHOR("Huawei Technologies CO., Ltd"); 37 MODULE_DESCRIPTION("Huawei Intelligent NIC driver"); 38 MODULE_LICENSE("GPL"); 39 40 static unsigned int tx_weight = 64; 41 module_param(tx_weight, uint, 0644); 42 MODULE_PARM_DESC(tx_weight, "Number Tx packets for NAPI budget (default=64)"); 43 44 static unsigned int rx_weight = 64; 45 module_param(rx_weight, uint, 0644); 46 MODULE_PARM_DESC(rx_weight, "Number Rx packets for NAPI budget (default=64)"); 47 48 #define HINIC_DEV_ID_QUAD_PORT_25GE 0x1822 49 #define HINIC_DEV_ID_DUAL_PORT_100GE 0x0200 50 #define HINIC_DEV_ID_DUAL_PORT_100GE_MEZZ 0x0205 51 #define HINIC_DEV_ID_QUAD_PORT_25GE_MEZZ 0x0210 52 #define HINIC_DEV_ID_VF 0x375e 53 54 #define HINIC_WQ_NAME "hinic_dev" 55 56 #define MSG_ENABLE_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | \ 57 NETIF_MSG_IFUP | \ 58 NETIF_MSG_TX_ERR | NETIF_MSG_RX_ERR) 59 60 #define HINIC_LRO_MAX_WQE_NUM_DEFAULT 8 61 62 #define HINIC_LRO_RX_TIMER_DEFAULT 16 63 64 #define VLAN_BITMAP_SIZE(nic_dev) (ALIGN(VLAN_N_VID, 8) / 8) 65 66 #define work_to_rx_mode_work(work) \ 67 container_of(work, struct hinic_rx_mode_work, work) 68 69 #define rx_mode_work_to_nic_dev(rx_mode_work) \ 70 container_of(rx_mode_work, struct hinic_dev, rx_mode_work) 71 72 #define HINIC_WAIT_SRIOV_CFG_TIMEOUT 15000 73 74 #define HINIC_DEAULT_TXRX_MSIX_PENDING_LIMIT 2 75 #define HINIC_DEAULT_TXRX_MSIX_COALESC_TIMER_CFG 32 76 #define HINIC_DEAULT_TXRX_MSIX_RESEND_TIMER_CFG 7 77 78 static int change_mac_addr(struct net_device *netdev, const u8 *addr); 79 80 static int set_features(struct hinic_dev *nic_dev, 81 netdev_features_t pre_features, 82 netdev_features_t features, bool force_change); 83 84 static void update_rx_stats(struct hinic_dev *nic_dev, struct hinic_rxq *rxq) 85 { 86 struct hinic_rxq_stats *nic_rx_stats = &nic_dev->rx_stats; 87 struct hinic_rxq_stats rx_stats; 88 89 u64_stats_init(&rx_stats.syncp); 90 91 hinic_rxq_get_stats(rxq, &rx_stats); 92 93 u64_stats_update_begin(&nic_rx_stats->syncp); 94 nic_rx_stats->bytes += rx_stats.bytes; 95 nic_rx_stats->pkts += rx_stats.pkts; 96 nic_rx_stats->errors += rx_stats.errors; 97 nic_rx_stats->csum_errors += rx_stats.csum_errors; 98 nic_rx_stats->other_errors += rx_stats.other_errors; 99 u64_stats_update_end(&nic_rx_stats->syncp); 100 101 hinic_rxq_clean_stats(rxq); 102 } 103 104 static void update_tx_stats(struct hinic_dev *nic_dev, struct hinic_txq *txq) 105 { 106 struct hinic_txq_stats *nic_tx_stats = &nic_dev->tx_stats; 107 struct hinic_txq_stats tx_stats; 108 109 u64_stats_init(&tx_stats.syncp); 110 111 hinic_txq_get_stats(txq, &tx_stats); 112 113 u64_stats_update_begin(&nic_tx_stats->syncp); 114 nic_tx_stats->bytes += tx_stats.bytes; 115 nic_tx_stats->pkts += tx_stats.pkts; 116 nic_tx_stats->tx_busy += tx_stats.tx_busy; 117 nic_tx_stats->tx_wake += tx_stats.tx_wake; 118 nic_tx_stats->tx_dropped += tx_stats.tx_dropped; 119 nic_tx_stats->big_frags_pkts += tx_stats.big_frags_pkts; 120 u64_stats_update_end(&nic_tx_stats->syncp); 121 122 hinic_txq_clean_stats(txq); 123 } 124 125 static void update_nic_stats(struct hinic_dev *nic_dev) 126 { 127 int i, num_qps = hinic_hwdev_num_qps(nic_dev->hwdev); 128 129 for (i = 0; i < num_qps; i++) 130 update_rx_stats(nic_dev, &nic_dev->rxqs[i]); 131 132 for (i = 0; i < num_qps; i++) 133 update_tx_stats(nic_dev, &nic_dev->txqs[i]); 134 } 135 136 /** 137 * create_txqs - Create the Logical Tx Queues of specific NIC device 138 * @nic_dev: the specific NIC device 139 * 140 * Return 0 - Success, negative - Failure 141 **/ 142 static int create_txqs(struct hinic_dev *nic_dev) 143 { 144 int err, i, j, num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev); 145 struct net_device *netdev = nic_dev->netdev; 146 size_t txq_size; 147 148 if (nic_dev->txqs) 149 return -EINVAL; 150 151 txq_size = num_txqs * sizeof(*nic_dev->txqs); 152 nic_dev->txqs = devm_kzalloc(&netdev->dev, txq_size, GFP_KERNEL); 153 if (!nic_dev->txqs) 154 return -ENOMEM; 155 156 for (i = 0; i < num_txqs; i++) { 157 struct hinic_sq *sq = hinic_hwdev_get_sq(nic_dev->hwdev, i); 158 159 err = hinic_init_txq(&nic_dev->txqs[i], sq, netdev); 160 if (err) { 161 netif_err(nic_dev, drv, netdev, 162 "Failed to init Txq\n"); 163 goto err_init_txq; 164 } 165 } 166 167 return 0; 168 169 err_init_txq: 170 for (j = 0; j < i; j++) 171 hinic_clean_txq(&nic_dev->txqs[j]); 172 173 devm_kfree(&netdev->dev, nic_dev->txqs); 174 return err; 175 } 176 177 /** 178 * free_txqs - Free the Logical Tx Queues of specific NIC device 179 * @nic_dev: the specific NIC device 180 **/ 181 static void free_txqs(struct hinic_dev *nic_dev) 182 { 183 int i, num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev); 184 struct net_device *netdev = nic_dev->netdev; 185 186 if (!nic_dev->txqs) 187 return; 188 189 for (i = 0; i < num_txqs; i++) 190 hinic_clean_txq(&nic_dev->txqs[i]); 191 192 devm_kfree(&netdev->dev, nic_dev->txqs); 193 nic_dev->txqs = NULL; 194 } 195 196 /** 197 * create_txqs - Create the Logical Rx Queues of specific NIC device 198 * @nic_dev: the specific NIC device 199 * 200 * Return 0 - Success, negative - Failure 201 **/ 202 static int create_rxqs(struct hinic_dev *nic_dev) 203 { 204 int err, i, j, num_rxqs = hinic_hwdev_num_qps(nic_dev->hwdev); 205 struct net_device *netdev = nic_dev->netdev; 206 size_t rxq_size; 207 208 if (nic_dev->rxqs) 209 return -EINVAL; 210 211 rxq_size = num_rxqs * sizeof(*nic_dev->rxqs); 212 nic_dev->rxqs = devm_kzalloc(&netdev->dev, rxq_size, GFP_KERNEL); 213 if (!nic_dev->rxqs) 214 return -ENOMEM; 215 216 for (i = 0; i < num_rxqs; i++) { 217 struct hinic_rq *rq = hinic_hwdev_get_rq(nic_dev->hwdev, i); 218 219 err = hinic_init_rxq(&nic_dev->rxqs[i], rq, netdev); 220 if (err) { 221 netif_err(nic_dev, drv, netdev, 222 "Failed to init rxq\n"); 223 goto err_init_rxq; 224 } 225 } 226 227 return 0; 228 229 err_init_rxq: 230 for (j = 0; j < i; j++) 231 hinic_clean_rxq(&nic_dev->rxqs[j]); 232 233 devm_kfree(&netdev->dev, nic_dev->rxqs); 234 return err; 235 } 236 237 /** 238 * free_txqs - Free the Logical Rx Queues of specific NIC device 239 * @nic_dev: the specific NIC device 240 **/ 241 static void free_rxqs(struct hinic_dev *nic_dev) 242 { 243 int i, num_rxqs = hinic_hwdev_num_qps(nic_dev->hwdev); 244 struct net_device *netdev = nic_dev->netdev; 245 246 if (!nic_dev->rxqs) 247 return; 248 249 for (i = 0; i < num_rxqs; i++) 250 hinic_clean_rxq(&nic_dev->rxqs[i]); 251 252 devm_kfree(&netdev->dev, nic_dev->rxqs); 253 nic_dev->rxqs = NULL; 254 } 255 256 static int hinic_configure_max_qnum(struct hinic_dev *nic_dev) 257 { 258 int err; 259 260 err = hinic_set_max_qnum(nic_dev, nic_dev->hwdev->nic_cap.max_qps); 261 if (err) 262 return err; 263 264 return 0; 265 } 266 267 static int hinic_rss_init(struct hinic_dev *nic_dev) 268 { 269 u8 default_rss_key[HINIC_RSS_KEY_SIZE]; 270 u8 tmpl_idx = nic_dev->rss_tmpl_idx; 271 u32 *indir_tbl; 272 int err, i; 273 274 indir_tbl = kcalloc(HINIC_RSS_INDIR_SIZE, sizeof(u32), GFP_KERNEL); 275 if (!indir_tbl) 276 return -ENOMEM; 277 278 netdev_rss_key_fill(default_rss_key, sizeof(default_rss_key)); 279 for (i = 0; i < HINIC_RSS_INDIR_SIZE; i++) 280 indir_tbl[i] = ethtool_rxfh_indir_default(i, nic_dev->num_rss); 281 282 err = hinic_rss_set_template_tbl(nic_dev, tmpl_idx, default_rss_key); 283 if (err) 284 goto out; 285 286 err = hinic_rss_set_indir_tbl(nic_dev, tmpl_idx, indir_tbl); 287 if (err) 288 goto out; 289 290 err = hinic_set_rss_type(nic_dev, tmpl_idx, nic_dev->rss_type); 291 if (err) 292 goto out; 293 294 err = hinic_rss_set_hash_engine(nic_dev, tmpl_idx, 295 nic_dev->rss_hash_engine); 296 if (err) 297 goto out; 298 299 err = hinic_rss_cfg(nic_dev, 1, tmpl_idx); 300 if (err) 301 goto out; 302 303 out: 304 kfree(indir_tbl); 305 return err; 306 } 307 308 static void hinic_rss_deinit(struct hinic_dev *nic_dev) 309 { 310 hinic_rss_cfg(nic_dev, 0, nic_dev->rss_tmpl_idx); 311 } 312 313 static void hinic_init_rss_parameters(struct hinic_dev *nic_dev) 314 { 315 nic_dev->rss_hash_engine = HINIC_RSS_HASH_ENGINE_TYPE_XOR; 316 nic_dev->rss_type.tcp_ipv6_ext = 1; 317 nic_dev->rss_type.ipv6_ext = 1; 318 nic_dev->rss_type.tcp_ipv6 = 1; 319 nic_dev->rss_type.ipv6 = 1; 320 nic_dev->rss_type.tcp_ipv4 = 1; 321 nic_dev->rss_type.ipv4 = 1; 322 nic_dev->rss_type.udp_ipv6 = 1; 323 nic_dev->rss_type.udp_ipv4 = 1; 324 } 325 326 static void hinic_enable_rss(struct hinic_dev *nic_dev) 327 { 328 struct net_device *netdev = nic_dev->netdev; 329 struct hinic_hwdev *hwdev = nic_dev->hwdev; 330 struct hinic_hwif *hwif = hwdev->hwif; 331 struct pci_dev *pdev = hwif->pdev; 332 int i, node, err = 0; 333 u16 num_cpus = 0; 334 335 if (nic_dev->max_qps <= 1) { 336 nic_dev->flags &= ~HINIC_RSS_ENABLE; 337 nic_dev->rss_limit = nic_dev->max_qps; 338 nic_dev->num_qps = nic_dev->max_qps; 339 nic_dev->num_rss = nic_dev->max_qps; 340 341 return; 342 } 343 344 err = hinic_rss_template_alloc(nic_dev, &nic_dev->rss_tmpl_idx); 345 if (err) { 346 netif_err(nic_dev, drv, netdev, 347 "Failed to alloc tmpl_idx for rss, can't enable rss for this function\n"); 348 nic_dev->flags &= ~HINIC_RSS_ENABLE; 349 nic_dev->max_qps = 1; 350 nic_dev->rss_limit = nic_dev->max_qps; 351 nic_dev->num_qps = nic_dev->max_qps; 352 nic_dev->num_rss = nic_dev->max_qps; 353 354 return; 355 } 356 357 nic_dev->flags |= HINIC_RSS_ENABLE; 358 359 for (i = 0; i < num_online_cpus(); i++) { 360 node = cpu_to_node(i); 361 if (node == dev_to_node(&pdev->dev)) 362 num_cpus++; 363 } 364 365 if (!num_cpus) 366 num_cpus = num_online_cpus(); 367 368 nic_dev->num_qps = hinic_hwdev_num_qps(hwdev); 369 nic_dev->num_qps = min_t(u16, nic_dev->num_qps, num_cpus); 370 371 nic_dev->rss_limit = nic_dev->num_qps; 372 nic_dev->num_rss = nic_dev->num_qps; 373 374 hinic_init_rss_parameters(nic_dev); 375 err = hinic_rss_init(nic_dev); 376 if (err) 377 netif_err(nic_dev, drv, netdev, "Failed to init rss\n"); 378 } 379 380 int hinic_open(struct net_device *netdev) 381 { 382 struct hinic_dev *nic_dev = netdev_priv(netdev); 383 enum hinic_port_link_state link_state; 384 int err, ret; 385 386 if (!(nic_dev->flags & HINIC_INTF_UP)) { 387 err = hinic_hwdev_ifup(nic_dev->hwdev, nic_dev->sq_depth, 388 nic_dev->rq_depth); 389 if (err) { 390 netif_err(nic_dev, drv, netdev, 391 "Failed - HW interface up\n"); 392 return err; 393 } 394 } 395 396 err = create_txqs(nic_dev); 397 if (err) { 398 netif_err(nic_dev, drv, netdev, 399 "Failed to create Tx queues\n"); 400 goto err_create_txqs; 401 } 402 403 err = create_rxqs(nic_dev); 404 if (err) { 405 netif_err(nic_dev, drv, netdev, 406 "Failed to create Rx queues\n"); 407 goto err_create_rxqs; 408 } 409 410 hinic_enable_rss(nic_dev); 411 412 err = hinic_configure_max_qnum(nic_dev); 413 if (err) { 414 netif_err(nic_dev, drv, nic_dev->netdev, 415 "Failed to configure the maximum number of queues\n"); 416 goto err_port_state; 417 } 418 419 netif_set_real_num_tx_queues(netdev, nic_dev->num_qps); 420 netif_set_real_num_rx_queues(netdev, nic_dev->num_qps); 421 422 err = hinic_port_set_state(nic_dev, HINIC_PORT_ENABLE); 423 if (err) { 424 netif_err(nic_dev, drv, netdev, 425 "Failed to set port state\n"); 426 goto err_port_state; 427 } 428 429 err = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_ENABLE); 430 if (err) { 431 netif_err(nic_dev, drv, netdev, 432 "Failed to set func port state\n"); 433 goto err_func_port_state; 434 } 435 436 down(&nic_dev->mgmt_lock); 437 438 err = hinic_port_link_state(nic_dev, &link_state); 439 if (err) { 440 netif_err(nic_dev, drv, netdev, "Failed to get link state\n"); 441 goto err_port_link; 442 } 443 444 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) 445 hinic_notify_all_vfs_link_changed(nic_dev->hwdev, link_state); 446 447 if (link_state == HINIC_LINK_STATE_UP) { 448 nic_dev->flags |= HINIC_LINK_UP; 449 nic_dev->cable_unplugged = false; 450 nic_dev->module_unrecognized = false; 451 } 452 453 nic_dev->flags |= HINIC_INTF_UP; 454 455 if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) == 456 (HINIC_LINK_UP | HINIC_INTF_UP)) { 457 netif_info(nic_dev, drv, netdev, "link + intf UP\n"); 458 netif_carrier_on(netdev); 459 netif_tx_wake_all_queues(netdev); 460 } 461 462 up(&nic_dev->mgmt_lock); 463 464 netif_info(nic_dev, drv, netdev, "HINIC_INTF is UP\n"); 465 return 0; 466 467 err_port_link: 468 up(&nic_dev->mgmt_lock); 469 ret = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE); 470 if (ret) 471 netif_warn(nic_dev, drv, netdev, 472 "Failed to revert func port state\n"); 473 474 err_func_port_state: 475 ret = hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE); 476 if (ret) 477 netif_warn(nic_dev, drv, netdev, 478 "Failed to revert port state\n"); 479 err_port_state: 480 free_rxqs(nic_dev); 481 if (nic_dev->flags & HINIC_RSS_ENABLE) { 482 hinic_rss_deinit(nic_dev); 483 hinic_rss_template_free(nic_dev, nic_dev->rss_tmpl_idx); 484 } 485 486 err_create_rxqs: 487 free_txqs(nic_dev); 488 489 err_create_txqs: 490 if (!(nic_dev->flags & HINIC_INTF_UP)) 491 hinic_hwdev_ifdown(nic_dev->hwdev); 492 return err; 493 } 494 495 int hinic_close(struct net_device *netdev) 496 { 497 struct hinic_dev *nic_dev = netdev_priv(netdev); 498 unsigned int flags; 499 500 down(&nic_dev->mgmt_lock); 501 502 flags = nic_dev->flags; 503 nic_dev->flags &= ~HINIC_INTF_UP; 504 505 netif_carrier_off(netdev); 506 netif_tx_disable(netdev); 507 508 update_nic_stats(nic_dev); 509 510 up(&nic_dev->mgmt_lock); 511 512 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) 513 hinic_notify_all_vfs_link_changed(nic_dev->hwdev, 0); 514 515 hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE); 516 517 hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE); 518 519 if (nic_dev->flags & HINIC_RSS_ENABLE) { 520 hinic_rss_deinit(nic_dev); 521 hinic_rss_template_free(nic_dev, nic_dev->rss_tmpl_idx); 522 } 523 524 free_rxqs(nic_dev); 525 free_txqs(nic_dev); 526 527 if (flags & HINIC_INTF_UP) 528 hinic_hwdev_ifdown(nic_dev->hwdev); 529 530 netif_info(nic_dev, drv, netdev, "HINIC_INTF is DOWN\n"); 531 return 0; 532 } 533 534 static int hinic_change_mtu(struct net_device *netdev, int new_mtu) 535 { 536 struct hinic_dev *nic_dev = netdev_priv(netdev); 537 int err; 538 539 netif_info(nic_dev, drv, netdev, "set_mtu = %d\n", new_mtu); 540 541 err = hinic_port_set_mtu(nic_dev, new_mtu); 542 if (err) 543 netif_err(nic_dev, drv, netdev, "Failed to set port mtu\n"); 544 else 545 netdev->mtu = new_mtu; 546 547 return err; 548 } 549 550 /** 551 * change_mac_addr - change the main mac address of network device 552 * @netdev: network device 553 * @addr: mac address to set 554 * 555 * Return 0 - Success, negative - Failure 556 **/ 557 static int change_mac_addr(struct net_device *netdev, const u8 *addr) 558 { 559 struct hinic_dev *nic_dev = netdev_priv(netdev); 560 u16 vid = 0; 561 int err; 562 563 if (!is_valid_ether_addr(addr)) 564 return -EADDRNOTAVAIL; 565 566 netif_info(nic_dev, drv, netdev, "change mac addr = %02x %02x %02x %02x %02x %02x\n", 567 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 568 569 down(&nic_dev->mgmt_lock); 570 571 do { 572 err = hinic_port_del_mac(nic_dev, netdev->dev_addr, vid); 573 if (err) { 574 netif_err(nic_dev, drv, netdev, 575 "Failed to delete mac\n"); 576 break; 577 } 578 579 err = hinic_port_add_mac(nic_dev, addr, vid); 580 if (err) { 581 netif_err(nic_dev, drv, netdev, "Failed to add mac\n"); 582 break; 583 } 584 585 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1); 586 } while (vid != VLAN_N_VID); 587 588 up(&nic_dev->mgmt_lock); 589 return err; 590 } 591 592 static int hinic_set_mac_addr(struct net_device *netdev, void *addr) 593 { 594 unsigned char new_mac[ETH_ALEN]; 595 struct sockaddr *saddr = addr; 596 int err; 597 598 memcpy(new_mac, saddr->sa_data, ETH_ALEN); 599 600 err = change_mac_addr(netdev, new_mac); 601 if (!err) 602 memcpy(netdev->dev_addr, new_mac, ETH_ALEN); 603 604 return err; 605 } 606 607 /** 608 * add_mac_addr - add mac address to network device 609 * @netdev: network device 610 * @addr: mac address to add 611 * 612 * Return 0 - Success, negative - Failure 613 **/ 614 static int add_mac_addr(struct net_device *netdev, const u8 *addr) 615 { 616 struct hinic_dev *nic_dev = netdev_priv(netdev); 617 u16 vid = 0; 618 int err; 619 620 netif_info(nic_dev, drv, netdev, "set mac addr = %02x %02x %02x %02x %02x %02x\n", 621 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 622 623 down(&nic_dev->mgmt_lock); 624 625 do { 626 err = hinic_port_add_mac(nic_dev, addr, vid); 627 if (err) { 628 netif_err(nic_dev, drv, netdev, "Failed to add mac\n"); 629 break; 630 } 631 632 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1); 633 } while (vid != VLAN_N_VID); 634 635 up(&nic_dev->mgmt_lock); 636 return err; 637 } 638 639 /** 640 * remove_mac_addr - remove mac address from network device 641 * @netdev: network device 642 * @addr: mac address to remove 643 * 644 * Return 0 - Success, negative - Failure 645 **/ 646 static int remove_mac_addr(struct net_device *netdev, const u8 *addr) 647 { 648 struct hinic_dev *nic_dev = netdev_priv(netdev); 649 u16 vid = 0; 650 int err; 651 652 if (!is_valid_ether_addr(addr)) 653 return -EADDRNOTAVAIL; 654 655 netif_info(nic_dev, drv, netdev, "remove mac addr = %02x %02x %02x %02x %02x %02x\n", 656 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 657 658 down(&nic_dev->mgmt_lock); 659 660 do { 661 err = hinic_port_del_mac(nic_dev, addr, vid); 662 if (err) { 663 netif_err(nic_dev, drv, netdev, 664 "Failed to delete mac\n"); 665 break; 666 } 667 668 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1); 669 } while (vid != VLAN_N_VID); 670 671 up(&nic_dev->mgmt_lock); 672 return err; 673 } 674 675 static int hinic_vlan_rx_add_vid(struct net_device *netdev, 676 __always_unused __be16 proto, u16 vid) 677 { 678 struct hinic_dev *nic_dev = netdev_priv(netdev); 679 int ret, err; 680 681 netif_info(nic_dev, drv, netdev, "add vid = %d\n", vid); 682 683 down(&nic_dev->mgmt_lock); 684 685 err = hinic_port_add_vlan(nic_dev, vid); 686 if (err) { 687 netif_err(nic_dev, drv, netdev, "Failed to add vlan\n"); 688 goto err_vlan_add; 689 } 690 691 err = hinic_port_add_mac(nic_dev, netdev->dev_addr, vid); 692 if (err && err != HINIC_PF_SET_VF_ALREADY) { 693 netif_err(nic_dev, drv, netdev, "Failed to set mac\n"); 694 goto err_add_mac; 695 } 696 697 bitmap_set(nic_dev->vlan_bitmap, vid, 1); 698 699 up(&nic_dev->mgmt_lock); 700 return 0; 701 702 err_add_mac: 703 ret = hinic_port_del_vlan(nic_dev, vid); 704 if (ret) 705 netif_err(nic_dev, drv, netdev, 706 "Failed to revert by removing vlan\n"); 707 708 err_vlan_add: 709 up(&nic_dev->mgmt_lock); 710 return err; 711 } 712 713 static int hinic_vlan_rx_kill_vid(struct net_device *netdev, 714 __always_unused __be16 proto, u16 vid) 715 { 716 struct hinic_dev *nic_dev = netdev_priv(netdev); 717 int err; 718 719 netif_info(nic_dev, drv, netdev, "remove vid = %d\n", vid); 720 721 down(&nic_dev->mgmt_lock); 722 723 err = hinic_port_del_vlan(nic_dev, vid); 724 if (err) { 725 netif_err(nic_dev, drv, netdev, "Failed to delete vlan\n"); 726 goto err_del_vlan; 727 } 728 729 bitmap_clear(nic_dev->vlan_bitmap, vid, 1); 730 731 up(&nic_dev->mgmt_lock); 732 return 0; 733 734 err_del_vlan: 735 up(&nic_dev->mgmt_lock); 736 return err; 737 } 738 739 static void set_rx_mode(struct work_struct *work) 740 { 741 struct hinic_rx_mode_work *rx_mode_work = work_to_rx_mode_work(work); 742 struct hinic_dev *nic_dev = rx_mode_work_to_nic_dev(rx_mode_work); 743 744 hinic_port_set_rx_mode(nic_dev, rx_mode_work->rx_mode); 745 746 __dev_uc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr); 747 __dev_mc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr); 748 } 749 750 static void hinic_set_rx_mode(struct net_device *netdev) 751 { 752 struct hinic_dev *nic_dev = netdev_priv(netdev); 753 struct hinic_rx_mode_work *rx_mode_work; 754 u32 rx_mode; 755 756 rx_mode_work = &nic_dev->rx_mode_work; 757 758 rx_mode = HINIC_RX_MODE_UC | 759 HINIC_RX_MODE_MC | 760 HINIC_RX_MODE_BC; 761 762 if (netdev->flags & IFF_PROMISC) { 763 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) 764 rx_mode |= HINIC_RX_MODE_PROMISC; 765 } else if (netdev->flags & IFF_ALLMULTI) { 766 rx_mode |= HINIC_RX_MODE_MC_ALL; 767 } 768 769 rx_mode_work->rx_mode = rx_mode; 770 771 queue_work(nic_dev->workq, &rx_mode_work->work); 772 } 773 774 static void hinic_tx_timeout(struct net_device *netdev, unsigned int txqueue) 775 { 776 struct hinic_dev *nic_dev = netdev_priv(netdev); 777 u16 sw_pi, hw_ci, sw_ci; 778 struct hinic_sq *sq; 779 u16 num_sqs, q_id; 780 781 num_sqs = hinic_hwdev_num_qps(nic_dev->hwdev); 782 783 netif_err(nic_dev, drv, netdev, "Tx timeout\n"); 784 785 for (q_id = 0; q_id < num_sqs; q_id++) { 786 if (!netif_xmit_stopped(netdev_get_tx_queue(netdev, q_id))) 787 continue; 788 789 sq = hinic_hwdev_get_sq(nic_dev->hwdev, q_id); 790 sw_pi = atomic_read(&sq->wq->prod_idx) & sq->wq->mask; 791 hw_ci = be16_to_cpu(*(u16 *)(sq->hw_ci_addr)) & sq->wq->mask; 792 sw_ci = atomic_read(&sq->wq->cons_idx) & sq->wq->mask; 793 netif_err(nic_dev, drv, netdev, "Txq%d: sw_pi: %d, hw_ci: %d, sw_ci: %d, napi->state: 0x%lx\n", 794 q_id, sw_pi, hw_ci, sw_ci, 795 nic_dev->txqs[q_id].napi.state); 796 } 797 } 798 799 static void hinic_get_stats64(struct net_device *netdev, 800 struct rtnl_link_stats64 *stats) 801 { 802 struct hinic_dev *nic_dev = netdev_priv(netdev); 803 struct hinic_rxq_stats *nic_rx_stats; 804 struct hinic_txq_stats *nic_tx_stats; 805 806 nic_rx_stats = &nic_dev->rx_stats; 807 nic_tx_stats = &nic_dev->tx_stats; 808 809 down(&nic_dev->mgmt_lock); 810 811 if (nic_dev->flags & HINIC_INTF_UP) 812 update_nic_stats(nic_dev); 813 814 up(&nic_dev->mgmt_lock); 815 816 stats->rx_bytes = nic_rx_stats->bytes; 817 stats->rx_packets = nic_rx_stats->pkts; 818 stats->rx_errors = nic_rx_stats->errors; 819 820 stats->tx_bytes = nic_tx_stats->bytes; 821 stats->tx_packets = nic_tx_stats->pkts; 822 stats->tx_errors = nic_tx_stats->tx_dropped; 823 } 824 825 static int hinic_set_features(struct net_device *netdev, 826 netdev_features_t features) 827 { 828 struct hinic_dev *nic_dev = netdev_priv(netdev); 829 830 return set_features(nic_dev, nic_dev->netdev->features, 831 features, false); 832 } 833 834 static netdev_features_t hinic_fix_features(struct net_device *netdev, 835 netdev_features_t features) 836 { 837 struct hinic_dev *nic_dev = netdev_priv(netdev); 838 839 /* If Rx checksum is disabled, then LRO should also be disabled */ 840 if (!(features & NETIF_F_RXCSUM)) { 841 netif_info(nic_dev, drv, netdev, "disabling LRO as RXCSUM is off\n"); 842 features &= ~NETIF_F_LRO; 843 } 844 845 return features; 846 } 847 848 static const struct net_device_ops hinic_netdev_ops = { 849 .ndo_open = hinic_open, 850 .ndo_stop = hinic_close, 851 .ndo_change_mtu = hinic_change_mtu, 852 .ndo_set_mac_address = hinic_set_mac_addr, 853 .ndo_validate_addr = eth_validate_addr, 854 .ndo_vlan_rx_add_vid = hinic_vlan_rx_add_vid, 855 .ndo_vlan_rx_kill_vid = hinic_vlan_rx_kill_vid, 856 .ndo_set_rx_mode = hinic_set_rx_mode, 857 .ndo_start_xmit = hinic_xmit_frame, 858 .ndo_tx_timeout = hinic_tx_timeout, 859 .ndo_get_stats64 = hinic_get_stats64, 860 .ndo_fix_features = hinic_fix_features, 861 .ndo_set_features = hinic_set_features, 862 .ndo_set_vf_mac = hinic_ndo_set_vf_mac, 863 .ndo_set_vf_vlan = hinic_ndo_set_vf_vlan, 864 .ndo_get_vf_config = hinic_ndo_get_vf_config, 865 .ndo_set_vf_trust = hinic_ndo_set_vf_trust, 866 .ndo_set_vf_rate = hinic_ndo_set_vf_bw, 867 .ndo_set_vf_spoofchk = hinic_ndo_set_vf_spoofchk, 868 .ndo_set_vf_link_state = hinic_ndo_set_vf_link_state, 869 }; 870 871 static const struct net_device_ops hinicvf_netdev_ops = { 872 .ndo_open = hinic_open, 873 .ndo_stop = hinic_close, 874 .ndo_change_mtu = hinic_change_mtu, 875 .ndo_set_mac_address = hinic_set_mac_addr, 876 .ndo_validate_addr = eth_validate_addr, 877 .ndo_vlan_rx_add_vid = hinic_vlan_rx_add_vid, 878 .ndo_vlan_rx_kill_vid = hinic_vlan_rx_kill_vid, 879 .ndo_set_rx_mode = hinic_set_rx_mode, 880 .ndo_start_xmit = hinic_xmit_frame, 881 .ndo_tx_timeout = hinic_tx_timeout, 882 .ndo_get_stats64 = hinic_get_stats64, 883 .ndo_fix_features = hinic_fix_features, 884 .ndo_set_features = hinic_set_features, 885 }; 886 887 static void netdev_features_init(struct net_device *netdev) 888 { 889 netdev->hw_features = NETIF_F_SG | NETIF_F_HIGHDMA | NETIF_F_IP_CSUM | 890 NETIF_F_IPV6_CSUM | NETIF_F_TSO | NETIF_F_TSO6 | 891 NETIF_F_RXCSUM | NETIF_F_LRO | 892 NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX; 893 894 netdev->vlan_features = netdev->hw_features; 895 896 netdev->features = netdev->hw_features | NETIF_F_HW_VLAN_CTAG_FILTER; 897 } 898 899 static void hinic_refresh_nic_cfg(struct hinic_dev *nic_dev) 900 { 901 struct hinic_nic_cfg *nic_cfg = &nic_dev->hwdev->func_to_io.nic_cfg; 902 struct hinic_pause_config pause_info = {0}; 903 struct hinic_port_cap port_cap = {0}; 904 905 if (hinic_port_get_cap(nic_dev, &port_cap)) 906 return; 907 908 mutex_lock(&nic_cfg->cfg_mutex); 909 if (nic_cfg->pause_set || !port_cap.autoneg_state) { 910 nic_cfg->auto_neg = port_cap.autoneg_state; 911 pause_info.auto_neg = nic_cfg->auto_neg; 912 pause_info.rx_pause = nic_cfg->rx_pause; 913 pause_info.tx_pause = nic_cfg->tx_pause; 914 hinic_set_hw_pause_info(nic_dev->hwdev, &pause_info); 915 } 916 mutex_unlock(&nic_cfg->cfg_mutex); 917 } 918 919 /** 920 * link_status_event_handler - link event handler 921 * @handle: nic device for the handler 922 * @buf_in: input buffer 923 * @in_size: input size 924 * @buf_in: output buffer 925 * @out_size: returned output size 926 * 927 * Return 0 - Success, negative - Failure 928 **/ 929 static void link_status_event_handler(void *handle, void *buf_in, u16 in_size, 930 void *buf_out, u16 *out_size) 931 { 932 struct hinic_port_link_status *link_status, *ret_link_status; 933 struct hinic_dev *nic_dev = handle; 934 935 link_status = buf_in; 936 937 if (link_status->link == HINIC_LINK_STATE_UP) { 938 down(&nic_dev->mgmt_lock); 939 940 nic_dev->flags |= HINIC_LINK_UP; 941 nic_dev->cable_unplugged = false; 942 nic_dev->module_unrecognized = false; 943 944 if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) == 945 (HINIC_LINK_UP | HINIC_INTF_UP)) { 946 netif_carrier_on(nic_dev->netdev); 947 netif_tx_wake_all_queues(nic_dev->netdev); 948 } 949 950 up(&nic_dev->mgmt_lock); 951 952 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) 953 hinic_refresh_nic_cfg(nic_dev); 954 955 netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is UP\n"); 956 } else { 957 down(&nic_dev->mgmt_lock); 958 959 nic_dev->flags &= ~HINIC_LINK_UP; 960 961 netif_carrier_off(nic_dev->netdev); 962 netif_tx_disable(nic_dev->netdev); 963 964 up(&nic_dev->mgmt_lock); 965 966 netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is DOWN\n"); 967 } 968 969 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) 970 hinic_notify_all_vfs_link_changed(nic_dev->hwdev, 971 link_status->link); 972 973 ret_link_status = buf_out; 974 ret_link_status->status = 0; 975 976 *out_size = sizeof(*ret_link_status); 977 } 978 979 static void cable_plug_event(void *handle, 980 void *buf_in, u16 in_size, 981 void *buf_out, u16 *out_size) 982 { 983 struct hinic_cable_plug_event *plug_event = buf_in; 984 struct hinic_dev *nic_dev = handle; 985 986 nic_dev->cable_unplugged = plug_event->plugged ? false : true; 987 988 *out_size = sizeof(*plug_event); 989 plug_event = buf_out; 990 plug_event->status = 0; 991 } 992 993 static void link_err_event(void *handle, 994 void *buf_in, u16 in_size, 995 void *buf_out, u16 *out_size) 996 { 997 struct hinic_link_err_event *link_err = buf_in; 998 struct hinic_dev *nic_dev = handle; 999 1000 if (link_err->err_type >= LINK_ERR_NUM) 1001 netif_info(nic_dev, link, nic_dev->netdev, 1002 "Link failed, Unknown error type: 0x%x\n", 1003 link_err->err_type); 1004 else 1005 nic_dev->module_unrecognized = true; 1006 1007 *out_size = sizeof(*link_err); 1008 link_err = buf_out; 1009 link_err->status = 0; 1010 } 1011 1012 static int set_features(struct hinic_dev *nic_dev, 1013 netdev_features_t pre_features, 1014 netdev_features_t features, bool force_change) 1015 { 1016 netdev_features_t changed = force_change ? ~0 : pre_features ^ features; 1017 u32 csum_en = HINIC_RX_CSUM_OFFLOAD_EN; 1018 netdev_features_t failed_features = 0; 1019 int ret = 0; 1020 int err = 0; 1021 1022 if (changed & NETIF_F_TSO) { 1023 ret = hinic_port_set_tso(nic_dev, (features & NETIF_F_TSO) ? 1024 HINIC_TSO_ENABLE : HINIC_TSO_DISABLE); 1025 if (ret) { 1026 err = ret; 1027 failed_features |= NETIF_F_TSO; 1028 } 1029 } 1030 1031 if (changed & NETIF_F_RXCSUM) { 1032 ret = hinic_set_rx_csum_offload(nic_dev, csum_en); 1033 if (ret) { 1034 err = ret; 1035 failed_features |= NETIF_F_RXCSUM; 1036 } 1037 } 1038 1039 if (changed & NETIF_F_LRO) { 1040 ret = hinic_set_rx_lro_state(nic_dev, 1041 !!(features & NETIF_F_LRO), 1042 HINIC_LRO_RX_TIMER_DEFAULT, 1043 HINIC_LRO_MAX_WQE_NUM_DEFAULT); 1044 if (ret) { 1045 err = ret; 1046 failed_features |= NETIF_F_LRO; 1047 } 1048 } 1049 1050 if (changed & NETIF_F_HW_VLAN_CTAG_RX) { 1051 ret = hinic_set_rx_vlan_offload(nic_dev, 1052 !!(features & 1053 NETIF_F_HW_VLAN_CTAG_RX)); 1054 if (ret) { 1055 err = ret; 1056 failed_features |= NETIF_F_HW_VLAN_CTAG_RX; 1057 } 1058 } 1059 1060 if (err) { 1061 nic_dev->netdev->features = features ^ failed_features; 1062 return -EIO; 1063 } 1064 1065 return 0; 1066 } 1067 1068 static int hinic_init_intr_coalesce(struct hinic_dev *nic_dev) 1069 { 1070 u64 size; 1071 u16 i; 1072 1073 size = sizeof(struct hinic_intr_coal_info) * nic_dev->max_qps; 1074 nic_dev->rx_intr_coalesce = kzalloc(size, GFP_KERNEL); 1075 if (!nic_dev->rx_intr_coalesce) 1076 return -ENOMEM; 1077 nic_dev->tx_intr_coalesce = kzalloc(size, GFP_KERNEL); 1078 if (!nic_dev->tx_intr_coalesce) { 1079 kfree(nic_dev->rx_intr_coalesce); 1080 return -ENOMEM; 1081 } 1082 1083 for (i = 0; i < nic_dev->max_qps; i++) { 1084 nic_dev->rx_intr_coalesce[i].pending_limt = 1085 HINIC_DEAULT_TXRX_MSIX_PENDING_LIMIT; 1086 nic_dev->rx_intr_coalesce[i].coalesce_timer_cfg = 1087 HINIC_DEAULT_TXRX_MSIX_COALESC_TIMER_CFG; 1088 nic_dev->rx_intr_coalesce[i].resend_timer_cfg = 1089 HINIC_DEAULT_TXRX_MSIX_RESEND_TIMER_CFG; 1090 nic_dev->tx_intr_coalesce[i].pending_limt = 1091 HINIC_DEAULT_TXRX_MSIX_PENDING_LIMIT; 1092 nic_dev->tx_intr_coalesce[i].coalesce_timer_cfg = 1093 HINIC_DEAULT_TXRX_MSIX_COALESC_TIMER_CFG; 1094 nic_dev->tx_intr_coalesce[i].resend_timer_cfg = 1095 HINIC_DEAULT_TXRX_MSIX_RESEND_TIMER_CFG; 1096 } 1097 1098 return 0; 1099 } 1100 1101 static void hinic_free_intr_coalesce(struct hinic_dev *nic_dev) 1102 { 1103 kfree(nic_dev->tx_intr_coalesce); 1104 kfree(nic_dev->rx_intr_coalesce); 1105 } 1106 1107 /** 1108 * nic_dev_init - Initialize the NIC device 1109 * @pdev: the NIC pci device 1110 * 1111 * Return 0 - Success, negative - Failure 1112 **/ 1113 static int nic_dev_init(struct pci_dev *pdev) 1114 { 1115 struct hinic_rx_mode_work *rx_mode_work; 1116 struct hinic_txq_stats *tx_stats; 1117 struct hinic_rxq_stats *rx_stats; 1118 struct hinic_dev *nic_dev; 1119 struct net_device *netdev; 1120 struct hinic_hwdev *hwdev; 1121 struct devlink *devlink; 1122 int err, num_qps; 1123 1124 devlink = hinic_devlink_alloc(); 1125 if (!devlink) { 1126 dev_err(&pdev->dev, "Hinic devlink alloc failed\n"); 1127 return -ENOMEM; 1128 } 1129 1130 hwdev = hinic_init_hwdev(pdev, devlink); 1131 if (IS_ERR(hwdev)) { 1132 dev_err(&pdev->dev, "Failed to initialize HW device\n"); 1133 hinic_devlink_free(devlink); 1134 return PTR_ERR(hwdev); 1135 } 1136 1137 num_qps = hinic_hwdev_num_qps(hwdev); 1138 if (num_qps <= 0) { 1139 dev_err(&pdev->dev, "Invalid number of QPS\n"); 1140 err = -EINVAL; 1141 goto err_num_qps; 1142 } 1143 1144 netdev = alloc_etherdev_mq(sizeof(*nic_dev), num_qps); 1145 if (!netdev) { 1146 dev_err(&pdev->dev, "Failed to allocate Ethernet device\n"); 1147 err = -ENOMEM; 1148 goto err_alloc_etherdev; 1149 } 1150 1151 if (!HINIC_IS_VF(hwdev->hwif)) 1152 netdev->netdev_ops = &hinic_netdev_ops; 1153 else 1154 netdev->netdev_ops = &hinicvf_netdev_ops; 1155 1156 netdev->max_mtu = ETH_MAX_MTU; 1157 1158 nic_dev = netdev_priv(netdev); 1159 nic_dev->netdev = netdev; 1160 nic_dev->hwdev = hwdev; 1161 nic_dev->msg_enable = MSG_ENABLE_DEFAULT; 1162 nic_dev->flags = 0; 1163 nic_dev->txqs = NULL; 1164 nic_dev->rxqs = NULL; 1165 nic_dev->tx_weight = tx_weight; 1166 nic_dev->rx_weight = rx_weight; 1167 nic_dev->sq_depth = HINIC_SQ_DEPTH; 1168 nic_dev->rq_depth = HINIC_RQ_DEPTH; 1169 nic_dev->sriov_info.hwdev = hwdev; 1170 nic_dev->sriov_info.pdev = pdev; 1171 nic_dev->max_qps = num_qps; 1172 nic_dev->devlink = devlink; 1173 1174 hinic_set_ethtool_ops(netdev); 1175 1176 sema_init(&nic_dev->mgmt_lock, 1); 1177 1178 tx_stats = &nic_dev->tx_stats; 1179 rx_stats = &nic_dev->rx_stats; 1180 1181 u64_stats_init(&tx_stats->syncp); 1182 u64_stats_init(&rx_stats->syncp); 1183 1184 nic_dev->vlan_bitmap = devm_kzalloc(&pdev->dev, 1185 VLAN_BITMAP_SIZE(nic_dev), 1186 GFP_KERNEL); 1187 if (!nic_dev->vlan_bitmap) { 1188 err = -ENOMEM; 1189 goto err_vlan_bitmap; 1190 } 1191 1192 nic_dev->workq = create_singlethread_workqueue(HINIC_WQ_NAME); 1193 if (!nic_dev->workq) { 1194 err = -ENOMEM; 1195 goto err_workq; 1196 } 1197 1198 pci_set_drvdata(pdev, netdev); 1199 1200 err = hinic_port_get_mac(nic_dev, netdev->dev_addr); 1201 if (err) { 1202 dev_err(&pdev->dev, "Failed to get mac address\n"); 1203 goto err_get_mac; 1204 } 1205 1206 if (!is_valid_ether_addr(netdev->dev_addr)) { 1207 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) { 1208 dev_err(&pdev->dev, "Invalid MAC address\n"); 1209 err = -EIO; 1210 goto err_add_mac; 1211 } 1212 1213 dev_info(&pdev->dev, "Invalid MAC address %pM, using random\n", 1214 netdev->dev_addr); 1215 eth_hw_addr_random(netdev); 1216 } 1217 1218 err = hinic_port_add_mac(nic_dev, netdev->dev_addr, 0); 1219 if (err && err != HINIC_PF_SET_VF_ALREADY) { 1220 dev_err(&pdev->dev, "Failed to add mac\n"); 1221 goto err_add_mac; 1222 } 1223 1224 err = hinic_port_set_mtu(nic_dev, netdev->mtu); 1225 if (err) { 1226 dev_err(&pdev->dev, "Failed to set mtu\n"); 1227 goto err_set_mtu; 1228 } 1229 1230 rx_mode_work = &nic_dev->rx_mode_work; 1231 INIT_WORK(&rx_mode_work->work, set_rx_mode); 1232 1233 netdev_features_init(netdev); 1234 1235 netif_carrier_off(netdev); 1236 1237 hinic_hwdev_cb_register(nic_dev->hwdev, HINIC_MGMT_MSG_CMD_LINK_STATUS, 1238 nic_dev, link_status_event_handler); 1239 hinic_hwdev_cb_register(nic_dev->hwdev, 1240 HINIC_MGMT_MSG_CMD_CABLE_PLUG_EVENT, 1241 nic_dev, cable_plug_event); 1242 hinic_hwdev_cb_register(nic_dev->hwdev, 1243 HINIC_MGMT_MSG_CMD_LINK_ERR_EVENT, 1244 nic_dev, link_err_event); 1245 1246 err = set_features(nic_dev, 0, nic_dev->netdev->features, true); 1247 if (err) 1248 goto err_set_features; 1249 1250 /* enable pause and disable pfc by default */ 1251 err = hinic_dcb_set_pfc(nic_dev->hwdev, 0, 0); 1252 if (err) 1253 goto err_set_pfc; 1254 1255 SET_NETDEV_DEV(netdev, &pdev->dev); 1256 1257 err = hinic_init_intr_coalesce(nic_dev); 1258 if (err) { 1259 dev_err(&pdev->dev, "Failed to init_intr_coalesce\n"); 1260 goto err_init_intr; 1261 } 1262 1263 err = register_netdev(netdev); 1264 if (err) { 1265 dev_err(&pdev->dev, "Failed to register netdev\n"); 1266 goto err_reg_netdev; 1267 } 1268 1269 return 0; 1270 1271 err_reg_netdev: 1272 hinic_free_intr_coalesce(nic_dev); 1273 err_init_intr: 1274 err_set_pfc: 1275 err_set_features: 1276 hinic_hwdev_cb_unregister(nic_dev->hwdev, 1277 HINIC_MGMT_MSG_CMD_LINK_ERR_EVENT); 1278 hinic_hwdev_cb_unregister(nic_dev->hwdev, 1279 HINIC_MGMT_MSG_CMD_CABLE_PLUG_EVENT); 1280 hinic_hwdev_cb_unregister(nic_dev->hwdev, 1281 HINIC_MGMT_MSG_CMD_LINK_STATUS); 1282 cancel_work_sync(&rx_mode_work->work); 1283 1284 err_set_mtu: 1285 hinic_port_del_mac(nic_dev, netdev->dev_addr, 0); 1286 err_add_mac: 1287 err_get_mac: 1288 pci_set_drvdata(pdev, NULL); 1289 destroy_workqueue(nic_dev->workq); 1290 err_workq: 1291 err_vlan_bitmap: 1292 free_netdev(netdev); 1293 1294 err_alloc_etherdev: 1295 err_num_qps: 1296 hinic_free_hwdev(hwdev); 1297 hinic_devlink_free(devlink); 1298 return err; 1299 } 1300 1301 static int hinic_probe(struct pci_dev *pdev, 1302 const struct pci_device_id *id) 1303 { 1304 int err = pci_enable_device(pdev); 1305 1306 if (err) { 1307 dev_err(&pdev->dev, "Failed to enable PCI device\n"); 1308 return err; 1309 } 1310 1311 err = pci_request_regions(pdev, HINIC_DRV_NAME); 1312 if (err) { 1313 dev_err(&pdev->dev, "Failed to request PCI regions\n"); 1314 goto err_pci_regions; 1315 } 1316 1317 pci_set_master(pdev); 1318 1319 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); 1320 if (err) { 1321 dev_warn(&pdev->dev, "Couldn't set 64-bit DMA mask\n"); 1322 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 1323 if (err) { 1324 dev_err(&pdev->dev, "Failed to set DMA mask\n"); 1325 goto err_dma_mask; 1326 } 1327 } 1328 1329 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); 1330 if (err) { 1331 dev_warn(&pdev->dev, 1332 "Couldn't set 64-bit consistent DMA mask\n"); 1333 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); 1334 if (err) { 1335 dev_err(&pdev->dev, 1336 "Failed to set consistent DMA mask\n"); 1337 goto err_dma_consistent_mask; 1338 } 1339 } 1340 1341 err = nic_dev_init(pdev); 1342 if (err) { 1343 dev_err(&pdev->dev, "Failed to initialize NIC device\n"); 1344 goto err_nic_dev_init; 1345 } 1346 1347 dev_info(&pdev->dev, "HiNIC driver - probed\n"); 1348 return 0; 1349 1350 err_nic_dev_init: 1351 err_dma_consistent_mask: 1352 err_dma_mask: 1353 pci_release_regions(pdev); 1354 1355 err_pci_regions: 1356 pci_disable_device(pdev); 1357 return err; 1358 } 1359 1360 #define HINIC_WAIT_SRIOV_CFG_TIMEOUT 15000 1361 1362 static void wait_sriov_cfg_complete(struct hinic_dev *nic_dev) 1363 { 1364 struct hinic_sriov_info *sriov_info = &nic_dev->sriov_info; 1365 u32 loop_cnt = 0; 1366 1367 set_bit(HINIC_FUNC_REMOVE, &sriov_info->state); 1368 usleep_range(9900, 10000); 1369 1370 while (loop_cnt < HINIC_WAIT_SRIOV_CFG_TIMEOUT) { 1371 if (!test_bit(HINIC_SRIOV_ENABLE, &sriov_info->state) && 1372 !test_bit(HINIC_SRIOV_DISABLE, &sriov_info->state)) 1373 return; 1374 1375 usleep_range(9900, 10000); 1376 loop_cnt++; 1377 } 1378 } 1379 1380 static void hinic_remove(struct pci_dev *pdev) 1381 { 1382 struct net_device *netdev = pci_get_drvdata(pdev); 1383 struct hinic_dev *nic_dev = netdev_priv(netdev); 1384 struct devlink *devlink = nic_dev->devlink; 1385 struct hinic_rx_mode_work *rx_mode_work; 1386 1387 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) { 1388 wait_sriov_cfg_complete(nic_dev); 1389 hinic_pci_sriov_disable(pdev); 1390 } 1391 1392 unregister_netdev(netdev); 1393 1394 hinic_free_intr_coalesce(nic_dev); 1395 1396 hinic_port_del_mac(nic_dev, netdev->dev_addr, 0); 1397 1398 hinic_hwdev_cb_unregister(nic_dev->hwdev, 1399 HINIC_MGMT_MSG_CMD_LINK_ERR_EVENT); 1400 hinic_hwdev_cb_unregister(nic_dev->hwdev, 1401 HINIC_MGMT_MSG_CMD_CABLE_PLUG_EVENT); 1402 hinic_hwdev_cb_unregister(nic_dev->hwdev, 1403 HINIC_MGMT_MSG_CMD_LINK_STATUS); 1404 1405 rx_mode_work = &nic_dev->rx_mode_work; 1406 cancel_work_sync(&rx_mode_work->work); 1407 1408 pci_set_drvdata(pdev, NULL); 1409 1410 destroy_workqueue(nic_dev->workq); 1411 1412 hinic_free_hwdev(nic_dev->hwdev); 1413 1414 free_netdev(netdev); 1415 1416 hinic_devlink_free(devlink); 1417 1418 pci_release_regions(pdev); 1419 pci_disable_device(pdev); 1420 1421 dev_info(&pdev->dev, "HiNIC driver - removed\n"); 1422 } 1423 1424 static void hinic_shutdown(struct pci_dev *pdev) 1425 { 1426 pci_disable_device(pdev); 1427 } 1428 1429 static const struct pci_device_id hinic_pci_table[] = { 1430 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_QUAD_PORT_25GE), 0}, 1431 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_100GE), 0}, 1432 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_100GE_MEZZ), 0}, 1433 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_QUAD_PORT_25GE_MEZZ), 0}, 1434 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_VF), 0}, 1435 { 0, 0} 1436 }; 1437 MODULE_DEVICE_TABLE(pci, hinic_pci_table); 1438 1439 static struct pci_driver hinic_driver = { 1440 .name = HINIC_DRV_NAME, 1441 .id_table = hinic_pci_table, 1442 .probe = hinic_probe, 1443 .remove = hinic_remove, 1444 .shutdown = hinic_shutdown, 1445 .sriov_configure = hinic_pci_sriov_configure, 1446 }; 1447 1448 module_pci_driver(hinic_driver); 1449