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; 449 450 nic_dev->flags |= HINIC_INTF_UP; 451 452 if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) == 453 (HINIC_LINK_UP | HINIC_INTF_UP)) { 454 netif_info(nic_dev, drv, netdev, "link + intf UP\n"); 455 netif_carrier_on(netdev); 456 netif_tx_wake_all_queues(netdev); 457 } 458 459 up(&nic_dev->mgmt_lock); 460 461 netif_info(nic_dev, drv, netdev, "HINIC_INTF is UP\n"); 462 return 0; 463 464 err_port_link: 465 up(&nic_dev->mgmt_lock); 466 ret = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE); 467 if (ret) 468 netif_warn(nic_dev, drv, netdev, 469 "Failed to revert func port state\n"); 470 471 err_func_port_state: 472 ret = hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE); 473 if (ret) 474 netif_warn(nic_dev, drv, netdev, 475 "Failed to revert port state\n"); 476 err_port_state: 477 free_rxqs(nic_dev); 478 if (nic_dev->flags & HINIC_RSS_ENABLE) { 479 hinic_rss_deinit(nic_dev); 480 hinic_rss_template_free(nic_dev, nic_dev->rss_tmpl_idx); 481 } 482 483 err_create_rxqs: 484 free_txqs(nic_dev); 485 486 err_create_txqs: 487 if (!(nic_dev->flags & HINIC_INTF_UP)) 488 hinic_hwdev_ifdown(nic_dev->hwdev); 489 return err; 490 } 491 492 int hinic_close(struct net_device *netdev) 493 { 494 struct hinic_dev *nic_dev = netdev_priv(netdev); 495 unsigned int flags; 496 497 down(&nic_dev->mgmt_lock); 498 499 flags = nic_dev->flags; 500 nic_dev->flags &= ~HINIC_INTF_UP; 501 502 netif_carrier_off(netdev); 503 netif_tx_disable(netdev); 504 505 update_nic_stats(nic_dev); 506 507 up(&nic_dev->mgmt_lock); 508 509 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) 510 hinic_notify_all_vfs_link_changed(nic_dev->hwdev, 0); 511 512 hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE); 513 514 hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE); 515 516 if (nic_dev->flags & HINIC_RSS_ENABLE) { 517 hinic_rss_deinit(nic_dev); 518 hinic_rss_template_free(nic_dev, nic_dev->rss_tmpl_idx); 519 } 520 521 free_rxqs(nic_dev); 522 free_txqs(nic_dev); 523 524 if (flags & HINIC_INTF_UP) 525 hinic_hwdev_ifdown(nic_dev->hwdev); 526 527 netif_info(nic_dev, drv, netdev, "HINIC_INTF is DOWN\n"); 528 return 0; 529 } 530 531 static int hinic_change_mtu(struct net_device *netdev, int new_mtu) 532 { 533 struct hinic_dev *nic_dev = netdev_priv(netdev); 534 int err; 535 536 netif_info(nic_dev, drv, netdev, "set_mtu = %d\n", new_mtu); 537 538 err = hinic_port_set_mtu(nic_dev, new_mtu); 539 if (err) 540 netif_err(nic_dev, drv, netdev, "Failed to set port mtu\n"); 541 else 542 netdev->mtu = new_mtu; 543 544 return err; 545 } 546 547 /** 548 * change_mac_addr - change the main mac address of network device 549 * @netdev: network device 550 * @addr: mac address to set 551 * 552 * Return 0 - Success, negative - Failure 553 **/ 554 static int change_mac_addr(struct net_device *netdev, const u8 *addr) 555 { 556 struct hinic_dev *nic_dev = netdev_priv(netdev); 557 u16 vid = 0; 558 int err; 559 560 if (!is_valid_ether_addr(addr)) 561 return -EADDRNOTAVAIL; 562 563 netif_info(nic_dev, drv, netdev, "change mac addr = %02x %02x %02x %02x %02x %02x\n", 564 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 565 566 down(&nic_dev->mgmt_lock); 567 568 do { 569 err = hinic_port_del_mac(nic_dev, netdev->dev_addr, vid); 570 if (err) { 571 netif_err(nic_dev, drv, netdev, 572 "Failed to delete mac\n"); 573 break; 574 } 575 576 err = hinic_port_add_mac(nic_dev, addr, vid); 577 if (err) { 578 netif_err(nic_dev, drv, netdev, "Failed to add mac\n"); 579 break; 580 } 581 582 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1); 583 } while (vid != VLAN_N_VID); 584 585 up(&nic_dev->mgmt_lock); 586 return err; 587 } 588 589 static int hinic_set_mac_addr(struct net_device *netdev, void *addr) 590 { 591 unsigned char new_mac[ETH_ALEN]; 592 struct sockaddr *saddr = addr; 593 int err; 594 595 memcpy(new_mac, saddr->sa_data, ETH_ALEN); 596 597 err = change_mac_addr(netdev, new_mac); 598 if (!err) 599 memcpy(netdev->dev_addr, new_mac, ETH_ALEN); 600 601 return err; 602 } 603 604 /** 605 * add_mac_addr - add mac address to network device 606 * @netdev: network device 607 * @addr: mac address to add 608 * 609 * Return 0 - Success, negative - Failure 610 **/ 611 static int add_mac_addr(struct net_device *netdev, const u8 *addr) 612 { 613 struct hinic_dev *nic_dev = netdev_priv(netdev); 614 u16 vid = 0; 615 int err; 616 617 netif_info(nic_dev, drv, netdev, "set mac addr = %02x %02x %02x %02x %02x %02x\n", 618 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 619 620 down(&nic_dev->mgmt_lock); 621 622 do { 623 err = hinic_port_add_mac(nic_dev, addr, vid); 624 if (err) { 625 netif_err(nic_dev, drv, netdev, "Failed to add mac\n"); 626 break; 627 } 628 629 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1); 630 } while (vid != VLAN_N_VID); 631 632 up(&nic_dev->mgmt_lock); 633 return err; 634 } 635 636 /** 637 * remove_mac_addr - remove mac address from network device 638 * @netdev: network device 639 * @addr: mac address to remove 640 * 641 * Return 0 - Success, negative - Failure 642 **/ 643 static int remove_mac_addr(struct net_device *netdev, const u8 *addr) 644 { 645 struct hinic_dev *nic_dev = netdev_priv(netdev); 646 u16 vid = 0; 647 int err; 648 649 if (!is_valid_ether_addr(addr)) 650 return -EADDRNOTAVAIL; 651 652 netif_info(nic_dev, drv, netdev, "remove mac addr = %02x %02x %02x %02x %02x %02x\n", 653 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 654 655 down(&nic_dev->mgmt_lock); 656 657 do { 658 err = hinic_port_del_mac(nic_dev, addr, vid); 659 if (err) { 660 netif_err(nic_dev, drv, netdev, 661 "Failed to delete mac\n"); 662 break; 663 } 664 665 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1); 666 } while (vid != VLAN_N_VID); 667 668 up(&nic_dev->mgmt_lock); 669 return err; 670 } 671 672 static int hinic_vlan_rx_add_vid(struct net_device *netdev, 673 __always_unused __be16 proto, u16 vid) 674 { 675 struct hinic_dev *nic_dev = netdev_priv(netdev); 676 int ret, err; 677 678 netif_info(nic_dev, drv, netdev, "add vid = %d\n", vid); 679 680 down(&nic_dev->mgmt_lock); 681 682 err = hinic_port_add_vlan(nic_dev, vid); 683 if (err) { 684 netif_err(nic_dev, drv, netdev, "Failed to add vlan\n"); 685 goto err_vlan_add; 686 } 687 688 err = hinic_port_add_mac(nic_dev, netdev->dev_addr, vid); 689 if (err && err != HINIC_PF_SET_VF_ALREADY) { 690 netif_err(nic_dev, drv, netdev, "Failed to set mac\n"); 691 goto err_add_mac; 692 } 693 694 bitmap_set(nic_dev->vlan_bitmap, vid, 1); 695 696 up(&nic_dev->mgmt_lock); 697 return 0; 698 699 err_add_mac: 700 ret = hinic_port_del_vlan(nic_dev, vid); 701 if (ret) 702 netif_err(nic_dev, drv, netdev, 703 "Failed to revert by removing vlan\n"); 704 705 err_vlan_add: 706 up(&nic_dev->mgmt_lock); 707 return err; 708 } 709 710 static int hinic_vlan_rx_kill_vid(struct net_device *netdev, 711 __always_unused __be16 proto, u16 vid) 712 { 713 struct hinic_dev *nic_dev = netdev_priv(netdev); 714 int err; 715 716 netif_info(nic_dev, drv, netdev, "remove vid = %d\n", vid); 717 718 down(&nic_dev->mgmt_lock); 719 720 err = hinic_port_del_vlan(nic_dev, vid); 721 if (err) { 722 netif_err(nic_dev, drv, netdev, "Failed to delete vlan\n"); 723 goto err_del_vlan; 724 } 725 726 bitmap_clear(nic_dev->vlan_bitmap, vid, 1); 727 728 up(&nic_dev->mgmt_lock); 729 return 0; 730 731 err_del_vlan: 732 up(&nic_dev->mgmt_lock); 733 return err; 734 } 735 736 static void set_rx_mode(struct work_struct *work) 737 { 738 struct hinic_rx_mode_work *rx_mode_work = work_to_rx_mode_work(work); 739 struct hinic_dev *nic_dev = rx_mode_work_to_nic_dev(rx_mode_work); 740 741 hinic_port_set_rx_mode(nic_dev, rx_mode_work->rx_mode); 742 743 __dev_uc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr); 744 __dev_mc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr); 745 } 746 747 static void hinic_set_rx_mode(struct net_device *netdev) 748 { 749 struct hinic_dev *nic_dev = netdev_priv(netdev); 750 struct hinic_rx_mode_work *rx_mode_work; 751 u32 rx_mode; 752 753 rx_mode_work = &nic_dev->rx_mode_work; 754 755 rx_mode = HINIC_RX_MODE_UC | 756 HINIC_RX_MODE_MC | 757 HINIC_RX_MODE_BC; 758 759 if (netdev->flags & IFF_PROMISC) { 760 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) 761 rx_mode |= HINIC_RX_MODE_PROMISC; 762 } else if (netdev->flags & IFF_ALLMULTI) { 763 rx_mode |= HINIC_RX_MODE_MC_ALL; 764 } 765 766 rx_mode_work->rx_mode = rx_mode; 767 768 queue_work(nic_dev->workq, &rx_mode_work->work); 769 } 770 771 static void hinic_tx_timeout(struct net_device *netdev, unsigned int txqueue) 772 { 773 struct hinic_dev *nic_dev = netdev_priv(netdev); 774 u16 sw_pi, hw_ci, sw_ci; 775 struct hinic_sq *sq; 776 u16 num_sqs, q_id; 777 778 num_sqs = hinic_hwdev_num_qps(nic_dev->hwdev); 779 780 netif_err(nic_dev, drv, netdev, "Tx timeout\n"); 781 782 for (q_id = 0; q_id < num_sqs; q_id++) { 783 if (!netif_xmit_stopped(netdev_get_tx_queue(netdev, q_id))) 784 continue; 785 786 sq = hinic_hwdev_get_sq(nic_dev->hwdev, q_id); 787 sw_pi = atomic_read(&sq->wq->prod_idx) & sq->wq->mask; 788 hw_ci = be16_to_cpu(*(u16 *)(sq->hw_ci_addr)) & sq->wq->mask; 789 sw_ci = atomic_read(&sq->wq->cons_idx) & sq->wq->mask; 790 netif_err(nic_dev, drv, netdev, "Txq%d: sw_pi: %d, hw_ci: %d, sw_ci: %d, napi->state: 0x%lx\n", 791 q_id, sw_pi, hw_ci, sw_ci, 792 nic_dev->txqs[q_id].napi.state); 793 } 794 } 795 796 static void hinic_get_stats64(struct net_device *netdev, 797 struct rtnl_link_stats64 *stats) 798 { 799 struct hinic_dev *nic_dev = netdev_priv(netdev); 800 struct hinic_rxq_stats *nic_rx_stats; 801 struct hinic_txq_stats *nic_tx_stats; 802 803 nic_rx_stats = &nic_dev->rx_stats; 804 nic_tx_stats = &nic_dev->tx_stats; 805 806 down(&nic_dev->mgmt_lock); 807 808 if (nic_dev->flags & HINIC_INTF_UP) 809 update_nic_stats(nic_dev); 810 811 up(&nic_dev->mgmt_lock); 812 813 stats->rx_bytes = nic_rx_stats->bytes; 814 stats->rx_packets = nic_rx_stats->pkts; 815 stats->rx_errors = nic_rx_stats->errors; 816 817 stats->tx_bytes = nic_tx_stats->bytes; 818 stats->tx_packets = nic_tx_stats->pkts; 819 stats->tx_errors = nic_tx_stats->tx_dropped; 820 } 821 822 static int hinic_set_features(struct net_device *netdev, 823 netdev_features_t features) 824 { 825 struct hinic_dev *nic_dev = netdev_priv(netdev); 826 827 return set_features(nic_dev, nic_dev->netdev->features, 828 features, false); 829 } 830 831 static netdev_features_t hinic_fix_features(struct net_device *netdev, 832 netdev_features_t features) 833 { 834 struct hinic_dev *nic_dev = netdev_priv(netdev); 835 836 /* If Rx checksum is disabled, then LRO should also be disabled */ 837 if (!(features & NETIF_F_RXCSUM)) { 838 netif_info(nic_dev, drv, netdev, "disabling LRO as RXCSUM is off\n"); 839 features &= ~NETIF_F_LRO; 840 } 841 842 return features; 843 } 844 845 static const struct net_device_ops hinic_netdev_ops = { 846 .ndo_open = hinic_open, 847 .ndo_stop = hinic_close, 848 .ndo_change_mtu = hinic_change_mtu, 849 .ndo_set_mac_address = hinic_set_mac_addr, 850 .ndo_validate_addr = eth_validate_addr, 851 .ndo_vlan_rx_add_vid = hinic_vlan_rx_add_vid, 852 .ndo_vlan_rx_kill_vid = hinic_vlan_rx_kill_vid, 853 .ndo_set_rx_mode = hinic_set_rx_mode, 854 .ndo_start_xmit = hinic_xmit_frame, 855 .ndo_tx_timeout = hinic_tx_timeout, 856 .ndo_get_stats64 = hinic_get_stats64, 857 .ndo_fix_features = hinic_fix_features, 858 .ndo_set_features = hinic_set_features, 859 .ndo_set_vf_mac = hinic_ndo_set_vf_mac, 860 .ndo_set_vf_vlan = hinic_ndo_set_vf_vlan, 861 .ndo_get_vf_config = hinic_ndo_get_vf_config, 862 .ndo_set_vf_trust = hinic_ndo_set_vf_trust, 863 .ndo_set_vf_rate = hinic_ndo_set_vf_bw, 864 .ndo_set_vf_spoofchk = hinic_ndo_set_vf_spoofchk, 865 .ndo_set_vf_link_state = hinic_ndo_set_vf_link_state, 866 }; 867 868 static const struct net_device_ops hinicvf_netdev_ops = { 869 .ndo_open = hinic_open, 870 .ndo_stop = hinic_close, 871 .ndo_change_mtu = hinic_change_mtu, 872 .ndo_set_mac_address = hinic_set_mac_addr, 873 .ndo_validate_addr = eth_validate_addr, 874 .ndo_vlan_rx_add_vid = hinic_vlan_rx_add_vid, 875 .ndo_vlan_rx_kill_vid = hinic_vlan_rx_kill_vid, 876 .ndo_set_rx_mode = hinic_set_rx_mode, 877 .ndo_start_xmit = hinic_xmit_frame, 878 .ndo_tx_timeout = hinic_tx_timeout, 879 .ndo_get_stats64 = hinic_get_stats64, 880 .ndo_fix_features = hinic_fix_features, 881 .ndo_set_features = hinic_set_features, 882 }; 883 884 static void netdev_features_init(struct net_device *netdev) 885 { 886 netdev->hw_features = NETIF_F_SG | NETIF_F_HIGHDMA | NETIF_F_IP_CSUM | 887 NETIF_F_IPV6_CSUM | NETIF_F_TSO | NETIF_F_TSO6 | 888 NETIF_F_RXCSUM | NETIF_F_LRO | 889 NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX; 890 891 netdev->vlan_features = netdev->hw_features; 892 893 netdev->features = netdev->hw_features | NETIF_F_HW_VLAN_CTAG_FILTER; 894 } 895 896 static void hinic_refresh_nic_cfg(struct hinic_dev *nic_dev) 897 { 898 struct hinic_nic_cfg *nic_cfg = &nic_dev->hwdev->func_to_io.nic_cfg; 899 struct hinic_pause_config pause_info = {0}; 900 struct hinic_port_cap port_cap = {0}; 901 902 if (hinic_port_get_cap(nic_dev, &port_cap)) 903 return; 904 905 mutex_lock(&nic_cfg->cfg_mutex); 906 if (nic_cfg->pause_set || !port_cap.autoneg_state) { 907 nic_cfg->auto_neg = port_cap.autoneg_state; 908 pause_info.auto_neg = nic_cfg->auto_neg; 909 pause_info.rx_pause = nic_cfg->rx_pause; 910 pause_info.tx_pause = nic_cfg->tx_pause; 911 hinic_set_hw_pause_info(nic_dev->hwdev, &pause_info); 912 } 913 mutex_unlock(&nic_cfg->cfg_mutex); 914 } 915 916 /** 917 * link_status_event_handler - link event handler 918 * @handle: nic device for the handler 919 * @buf_in: input buffer 920 * @in_size: input size 921 * @buf_in: output buffer 922 * @out_size: returned output size 923 * 924 * Return 0 - Success, negative - Failure 925 **/ 926 static void link_status_event_handler(void *handle, void *buf_in, u16 in_size, 927 void *buf_out, u16 *out_size) 928 { 929 struct hinic_port_link_status *link_status, *ret_link_status; 930 struct hinic_dev *nic_dev = handle; 931 932 link_status = buf_in; 933 934 if (link_status->link == HINIC_LINK_STATE_UP) { 935 down(&nic_dev->mgmt_lock); 936 937 nic_dev->flags |= HINIC_LINK_UP; 938 939 if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) == 940 (HINIC_LINK_UP | HINIC_INTF_UP)) { 941 netif_carrier_on(nic_dev->netdev); 942 netif_tx_wake_all_queues(nic_dev->netdev); 943 } 944 945 up(&nic_dev->mgmt_lock); 946 947 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) 948 hinic_refresh_nic_cfg(nic_dev); 949 950 netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is UP\n"); 951 } else { 952 down(&nic_dev->mgmt_lock); 953 954 nic_dev->flags &= ~HINIC_LINK_UP; 955 956 netif_carrier_off(nic_dev->netdev); 957 netif_tx_disable(nic_dev->netdev); 958 959 up(&nic_dev->mgmt_lock); 960 961 netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is DOWN\n"); 962 } 963 964 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) 965 hinic_notify_all_vfs_link_changed(nic_dev->hwdev, 966 link_status->link); 967 968 ret_link_status = buf_out; 969 ret_link_status->status = 0; 970 971 *out_size = sizeof(*ret_link_status); 972 } 973 974 static int set_features(struct hinic_dev *nic_dev, 975 netdev_features_t pre_features, 976 netdev_features_t features, bool force_change) 977 { 978 netdev_features_t changed = force_change ? ~0 : pre_features ^ features; 979 u32 csum_en = HINIC_RX_CSUM_OFFLOAD_EN; 980 netdev_features_t failed_features = 0; 981 int ret = 0; 982 int err = 0; 983 984 if (changed & NETIF_F_TSO) { 985 ret = hinic_port_set_tso(nic_dev, (features & NETIF_F_TSO) ? 986 HINIC_TSO_ENABLE : HINIC_TSO_DISABLE); 987 if (ret) { 988 err = ret; 989 failed_features |= NETIF_F_TSO; 990 } 991 } 992 993 if (changed & NETIF_F_RXCSUM) { 994 ret = hinic_set_rx_csum_offload(nic_dev, csum_en); 995 if (ret) { 996 err = ret; 997 failed_features |= NETIF_F_RXCSUM; 998 } 999 } 1000 1001 if (changed & NETIF_F_LRO) { 1002 ret = hinic_set_rx_lro_state(nic_dev, 1003 !!(features & NETIF_F_LRO), 1004 HINIC_LRO_RX_TIMER_DEFAULT, 1005 HINIC_LRO_MAX_WQE_NUM_DEFAULT); 1006 if (ret) { 1007 err = ret; 1008 failed_features |= NETIF_F_LRO; 1009 } 1010 } 1011 1012 if (changed & NETIF_F_HW_VLAN_CTAG_RX) { 1013 ret = hinic_set_rx_vlan_offload(nic_dev, 1014 !!(features & 1015 NETIF_F_HW_VLAN_CTAG_RX)); 1016 if (ret) { 1017 err = ret; 1018 failed_features |= NETIF_F_HW_VLAN_CTAG_RX; 1019 } 1020 } 1021 1022 if (err) { 1023 nic_dev->netdev->features = features ^ failed_features; 1024 return -EIO; 1025 } 1026 1027 return 0; 1028 } 1029 1030 static int hinic_init_intr_coalesce(struct hinic_dev *nic_dev) 1031 { 1032 u64 size; 1033 u16 i; 1034 1035 size = sizeof(struct hinic_intr_coal_info) * nic_dev->max_qps; 1036 nic_dev->rx_intr_coalesce = kzalloc(size, GFP_KERNEL); 1037 if (!nic_dev->rx_intr_coalesce) 1038 return -ENOMEM; 1039 nic_dev->tx_intr_coalesce = kzalloc(size, GFP_KERNEL); 1040 if (!nic_dev->tx_intr_coalesce) { 1041 kfree(nic_dev->rx_intr_coalesce); 1042 return -ENOMEM; 1043 } 1044 1045 for (i = 0; i < nic_dev->max_qps; i++) { 1046 nic_dev->rx_intr_coalesce[i].pending_limt = 1047 HINIC_DEAULT_TXRX_MSIX_PENDING_LIMIT; 1048 nic_dev->rx_intr_coalesce[i].coalesce_timer_cfg = 1049 HINIC_DEAULT_TXRX_MSIX_COALESC_TIMER_CFG; 1050 nic_dev->rx_intr_coalesce[i].resend_timer_cfg = 1051 HINIC_DEAULT_TXRX_MSIX_RESEND_TIMER_CFG; 1052 nic_dev->tx_intr_coalesce[i].pending_limt = 1053 HINIC_DEAULT_TXRX_MSIX_PENDING_LIMIT; 1054 nic_dev->tx_intr_coalesce[i].coalesce_timer_cfg = 1055 HINIC_DEAULT_TXRX_MSIX_COALESC_TIMER_CFG; 1056 nic_dev->tx_intr_coalesce[i].resend_timer_cfg = 1057 HINIC_DEAULT_TXRX_MSIX_RESEND_TIMER_CFG; 1058 } 1059 1060 return 0; 1061 } 1062 1063 static void hinic_free_intr_coalesce(struct hinic_dev *nic_dev) 1064 { 1065 kfree(nic_dev->tx_intr_coalesce); 1066 kfree(nic_dev->rx_intr_coalesce); 1067 } 1068 1069 /** 1070 * nic_dev_init - Initialize the NIC device 1071 * @pdev: the NIC pci device 1072 * 1073 * Return 0 - Success, negative - Failure 1074 **/ 1075 static int nic_dev_init(struct pci_dev *pdev) 1076 { 1077 struct hinic_rx_mode_work *rx_mode_work; 1078 struct hinic_txq_stats *tx_stats; 1079 struct hinic_rxq_stats *rx_stats; 1080 struct hinic_devlink_priv *priv; 1081 struct hinic_dev *nic_dev; 1082 struct net_device *netdev; 1083 struct hinic_hwdev *hwdev; 1084 struct devlink *devlink; 1085 int err, num_qps; 1086 1087 hwdev = hinic_init_hwdev(pdev); 1088 if (IS_ERR(hwdev)) { 1089 dev_err(&pdev->dev, "Failed to initialize HW device\n"); 1090 return PTR_ERR(hwdev); 1091 } 1092 1093 devlink = hinic_devlink_alloc(); 1094 if (!devlink) { 1095 dev_err(&pdev->dev, "Hinic devlink alloc failed\n"); 1096 err = -ENOMEM; 1097 goto err_devlink_alloc; 1098 } 1099 1100 priv = devlink_priv(devlink); 1101 priv->hwdev = hwdev; 1102 1103 num_qps = hinic_hwdev_num_qps(hwdev); 1104 if (num_qps <= 0) { 1105 dev_err(&pdev->dev, "Invalid number of QPS\n"); 1106 err = -EINVAL; 1107 goto err_num_qps; 1108 } 1109 1110 netdev = alloc_etherdev_mq(sizeof(*nic_dev), num_qps); 1111 if (!netdev) { 1112 dev_err(&pdev->dev, "Failed to allocate Ethernet device\n"); 1113 err = -ENOMEM; 1114 goto err_alloc_etherdev; 1115 } 1116 1117 if (!HINIC_IS_VF(hwdev->hwif)) 1118 netdev->netdev_ops = &hinic_netdev_ops; 1119 else 1120 netdev->netdev_ops = &hinicvf_netdev_ops; 1121 1122 netdev->max_mtu = ETH_MAX_MTU; 1123 1124 nic_dev = netdev_priv(netdev); 1125 nic_dev->netdev = netdev; 1126 nic_dev->hwdev = hwdev; 1127 nic_dev->msg_enable = MSG_ENABLE_DEFAULT; 1128 nic_dev->flags = 0; 1129 nic_dev->txqs = NULL; 1130 nic_dev->rxqs = NULL; 1131 nic_dev->tx_weight = tx_weight; 1132 nic_dev->rx_weight = rx_weight; 1133 nic_dev->sq_depth = HINIC_SQ_DEPTH; 1134 nic_dev->rq_depth = HINIC_RQ_DEPTH; 1135 nic_dev->sriov_info.hwdev = hwdev; 1136 nic_dev->sriov_info.pdev = pdev; 1137 nic_dev->max_qps = num_qps; 1138 nic_dev->devlink = devlink; 1139 1140 hinic_set_ethtool_ops(netdev); 1141 1142 sema_init(&nic_dev->mgmt_lock, 1); 1143 1144 tx_stats = &nic_dev->tx_stats; 1145 rx_stats = &nic_dev->rx_stats; 1146 1147 u64_stats_init(&tx_stats->syncp); 1148 u64_stats_init(&rx_stats->syncp); 1149 1150 nic_dev->vlan_bitmap = devm_kzalloc(&pdev->dev, 1151 VLAN_BITMAP_SIZE(nic_dev), 1152 GFP_KERNEL); 1153 if (!nic_dev->vlan_bitmap) { 1154 err = -ENOMEM; 1155 goto err_vlan_bitmap; 1156 } 1157 1158 nic_dev->workq = create_singlethread_workqueue(HINIC_WQ_NAME); 1159 if (!nic_dev->workq) { 1160 err = -ENOMEM; 1161 goto err_workq; 1162 } 1163 1164 err = hinic_devlink_register(devlink, &pdev->dev); 1165 if (err) 1166 goto err_devlink_reg; 1167 1168 pci_set_drvdata(pdev, netdev); 1169 1170 err = hinic_port_get_mac(nic_dev, netdev->dev_addr); 1171 if (err) { 1172 dev_err(&pdev->dev, "Failed to get mac address\n"); 1173 goto err_get_mac; 1174 } 1175 1176 if (!is_valid_ether_addr(netdev->dev_addr)) { 1177 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) { 1178 dev_err(&pdev->dev, "Invalid MAC address\n"); 1179 err = -EIO; 1180 goto err_add_mac; 1181 } 1182 1183 dev_info(&pdev->dev, "Invalid MAC address %pM, using random\n", 1184 netdev->dev_addr); 1185 eth_hw_addr_random(netdev); 1186 } 1187 1188 err = hinic_port_add_mac(nic_dev, netdev->dev_addr, 0); 1189 if (err && err != HINIC_PF_SET_VF_ALREADY) { 1190 dev_err(&pdev->dev, "Failed to add mac\n"); 1191 goto err_add_mac; 1192 } 1193 1194 err = hinic_port_set_mtu(nic_dev, netdev->mtu); 1195 if (err) { 1196 dev_err(&pdev->dev, "Failed to set mtu\n"); 1197 goto err_set_mtu; 1198 } 1199 1200 rx_mode_work = &nic_dev->rx_mode_work; 1201 INIT_WORK(&rx_mode_work->work, set_rx_mode); 1202 1203 netdev_features_init(netdev); 1204 1205 netif_carrier_off(netdev); 1206 1207 hinic_hwdev_cb_register(nic_dev->hwdev, HINIC_MGMT_MSG_CMD_LINK_STATUS, 1208 nic_dev, link_status_event_handler); 1209 1210 err = set_features(nic_dev, 0, nic_dev->netdev->features, true); 1211 if (err) 1212 goto err_set_features; 1213 1214 /* enable pause and disable pfc by default */ 1215 err = hinic_dcb_set_pfc(nic_dev->hwdev, 0, 0); 1216 if (err) 1217 goto err_set_pfc; 1218 1219 SET_NETDEV_DEV(netdev, &pdev->dev); 1220 1221 err = hinic_init_intr_coalesce(nic_dev); 1222 if (err) { 1223 dev_err(&pdev->dev, "Failed to init_intr_coalesce\n"); 1224 goto err_init_intr; 1225 } 1226 1227 err = register_netdev(netdev); 1228 if (err) { 1229 dev_err(&pdev->dev, "Failed to register netdev\n"); 1230 goto err_reg_netdev; 1231 } 1232 1233 return 0; 1234 1235 err_reg_netdev: 1236 hinic_free_intr_coalesce(nic_dev); 1237 err_init_intr: 1238 err_set_pfc: 1239 err_set_features: 1240 hinic_hwdev_cb_unregister(nic_dev->hwdev, 1241 HINIC_MGMT_MSG_CMD_LINK_STATUS); 1242 cancel_work_sync(&rx_mode_work->work); 1243 1244 err_set_mtu: 1245 hinic_port_del_mac(nic_dev, netdev->dev_addr, 0); 1246 err_add_mac: 1247 err_get_mac: 1248 pci_set_drvdata(pdev, NULL); 1249 err_devlink_reg: 1250 destroy_workqueue(nic_dev->workq); 1251 1252 err_workq: 1253 err_vlan_bitmap: 1254 free_netdev(netdev); 1255 1256 err_alloc_etherdev: 1257 err_num_qps: 1258 err_devlink_alloc: 1259 hinic_free_hwdev(hwdev); 1260 return err; 1261 } 1262 1263 static int hinic_probe(struct pci_dev *pdev, 1264 const struct pci_device_id *id) 1265 { 1266 int err = pci_enable_device(pdev); 1267 1268 if (err) { 1269 dev_err(&pdev->dev, "Failed to enable PCI device\n"); 1270 return err; 1271 } 1272 1273 err = pci_request_regions(pdev, HINIC_DRV_NAME); 1274 if (err) { 1275 dev_err(&pdev->dev, "Failed to request PCI regions\n"); 1276 goto err_pci_regions; 1277 } 1278 1279 pci_set_master(pdev); 1280 1281 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); 1282 if (err) { 1283 dev_warn(&pdev->dev, "Couldn't set 64-bit DMA mask\n"); 1284 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 1285 if (err) { 1286 dev_err(&pdev->dev, "Failed to set DMA mask\n"); 1287 goto err_dma_mask; 1288 } 1289 } 1290 1291 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); 1292 if (err) { 1293 dev_warn(&pdev->dev, 1294 "Couldn't set 64-bit consistent DMA mask\n"); 1295 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); 1296 if (err) { 1297 dev_err(&pdev->dev, 1298 "Failed to set consistent DMA mask\n"); 1299 goto err_dma_consistent_mask; 1300 } 1301 } 1302 1303 err = nic_dev_init(pdev); 1304 if (err) { 1305 dev_err(&pdev->dev, "Failed to initialize NIC device\n"); 1306 goto err_nic_dev_init; 1307 } 1308 1309 dev_info(&pdev->dev, "HiNIC driver - probed\n"); 1310 return 0; 1311 1312 err_nic_dev_init: 1313 err_dma_consistent_mask: 1314 err_dma_mask: 1315 pci_release_regions(pdev); 1316 1317 err_pci_regions: 1318 pci_disable_device(pdev); 1319 return err; 1320 } 1321 1322 #define HINIC_WAIT_SRIOV_CFG_TIMEOUT 15000 1323 1324 static void wait_sriov_cfg_complete(struct hinic_dev *nic_dev) 1325 { 1326 struct hinic_sriov_info *sriov_info = &nic_dev->sriov_info; 1327 u32 loop_cnt = 0; 1328 1329 set_bit(HINIC_FUNC_REMOVE, &sriov_info->state); 1330 usleep_range(9900, 10000); 1331 1332 while (loop_cnt < HINIC_WAIT_SRIOV_CFG_TIMEOUT) { 1333 if (!test_bit(HINIC_SRIOV_ENABLE, &sriov_info->state) && 1334 !test_bit(HINIC_SRIOV_DISABLE, &sriov_info->state)) 1335 return; 1336 1337 usleep_range(9900, 10000); 1338 loop_cnt++; 1339 } 1340 } 1341 1342 static void hinic_remove(struct pci_dev *pdev) 1343 { 1344 struct net_device *netdev = pci_get_drvdata(pdev); 1345 struct hinic_dev *nic_dev = netdev_priv(netdev); 1346 struct hinic_rx_mode_work *rx_mode_work; 1347 1348 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) { 1349 wait_sriov_cfg_complete(nic_dev); 1350 hinic_pci_sriov_disable(pdev); 1351 } 1352 1353 unregister_netdev(netdev); 1354 1355 hinic_free_intr_coalesce(nic_dev); 1356 1357 hinic_port_del_mac(nic_dev, netdev->dev_addr, 0); 1358 1359 hinic_hwdev_cb_unregister(nic_dev->hwdev, 1360 HINIC_MGMT_MSG_CMD_LINK_STATUS); 1361 1362 rx_mode_work = &nic_dev->rx_mode_work; 1363 cancel_work_sync(&rx_mode_work->work); 1364 1365 pci_set_drvdata(pdev, NULL); 1366 1367 hinic_devlink_unregister(nic_dev->devlink); 1368 1369 destroy_workqueue(nic_dev->workq); 1370 1371 hinic_devlink_free(nic_dev->devlink); 1372 1373 hinic_free_hwdev(nic_dev->hwdev); 1374 1375 free_netdev(netdev); 1376 1377 pci_release_regions(pdev); 1378 pci_disable_device(pdev); 1379 1380 dev_info(&pdev->dev, "HiNIC driver - removed\n"); 1381 } 1382 1383 static void hinic_shutdown(struct pci_dev *pdev) 1384 { 1385 pci_disable_device(pdev); 1386 } 1387 1388 static const struct pci_device_id hinic_pci_table[] = { 1389 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_QUAD_PORT_25GE), 0}, 1390 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_100GE), 0}, 1391 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_100GE_MEZZ), 0}, 1392 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_QUAD_PORT_25GE_MEZZ), 0}, 1393 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_VF), 0}, 1394 { 0, 0} 1395 }; 1396 MODULE_DEVICE_TABLE(pci, hinic_pci_table); 1397 1398 static struct pci_driver hinic_driver = { 1399 .name = HINIC_DRV_NAME, 1400 .id_table = hinic_pci_table, 1401 .probe = hinic_probe, 1402 .remove = hinic_remove, 1403 .shutdown = hinic_shutdown, 1404 .sriov_configure = hinic_pci_sriov_configure, 1405 }; 1406 1407 module_pci_driver(hinic_driver); 1408