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 37 MODULE_AUTHOR("Huawei Technologies CO., Ltd"); 38 MODULE_DESCRIPTION("Huawei Intelligent NIC driver"); 39 MODULE_LICENSE("GPL"); 40 41 static unsigned int tx_weight = 64; 42 module_param(tx_weight, uint, 0644); 43 MODULE_PARM_DESC(tx_weight, "Number Tx packets for NAPI budget (default=64)"); 44 45 static unsigned int rx_weight = 64; 46 module_param(rx_weight, uint, 0644); 47 MODULE_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 VLAN_BITMAP_SIZE(nic_dev) (ALIGN(VLAN_N_VID, 8) / 8) 66 67 #define work_to_rx_mode_work(work) \ 68 container_of(work, struct hinic_rx_mode_work, work) 69 70 #define rx_mode_work_to_nic_dev(rx_mode_work) \ 71 container_of(rx_mode_work, struct hinic_dev, rx_mode_work) 72 73 #define HINIC_WAIT_SRIOV_CFG_TIMEOUT 15000 74 75 #define HINIC_DEAULT_TXRX_MSIX_PENDING_LIMIT 2 76 #define HINIC_DEAULT_TXRX_MSIX_COALESC_TIMER_CFG 32 77 #define HINIC_DEAULT_TXRX_MSIX_RESEND_TIMER_CFG 7 78 79 static int change_mac_addr(struct net_device *netdev, const u8 *addr); 80 81 static int set_features(struct hinic_dev *nic_dev, 82 netdev_features_t pre_features, 83 netdev_features_t features, bool force_change); 84 85 static void update_rx_stats(struct hinic_dev *nic_dev, struct hinic_rxq *rxq) 86 { 87 struct hinic_rxq_stats *nic_rx_stats = &nic_dev->rx_stats; 88 struct hinic_rxq_stats rx_stats; 89 90 u64_stats_init(&rx_stats.syncp); 91 92 hinic_rxq_get_stats(rxq, &rx_stats); 93 94 u64_stats_update_begin(&nic_rx_stats->syncp); 95 nic_rx_stats->bytes += rx_stats.bytes; 96 nic_rx_stats->pkts += rx_stats.pkts; 97 nic_rx_stats->errors += rx_stats.errors; 98 nic_rx_stats->csum_errors += rx_stats.csum_errors; 99 nic_rx_stats->other_errors += rx_stats.other_errors; 100 u64_stats_update_end(&nic_rx_stats->syncp); 101 102 hinic_rxq_clean_stats(rxq); 103 } 104 105 static void update_tx_stats(struct hinic_dev *nic_dev, struct hinic_txq *txq) 106 { 107 struct hinic_txq_stats *nic_tx_stats = &nic_dev->tx_stats; 108 struct hinic_txq_stats tx_stats; 109 110 u64_stats_init(&tx_stats.syncp); 111 112 hinic_txq_get_stats(txq, &tx_stats); 113 114 u64_stats_update_begin(&nic_tx_stats->syncp); 115 nic_tx_stats->bytes += tx_stats.bytes; 116 nic_tx_stats->pkts += tx_stats.pkts; 117 nic_tx_stats->tx_busy += tx_stats.tx_busy; 118 nic_tx_stats->tx_wake += tx_stats.tx_wake; 119 nic_tx_stats->tx_dropped += tx_stats.tx_dropped; 120 nic_tx_stats->big_frags_pkts += tx_stats.big_frags_pkts; 121 u64_stats_update_end(&nic_tx_stats->syncp); 122 123 hinic_txq_clean_stats(txq); 124 } 125 126 static void update_nic_stats(struct hinic_dev *nic_dev) 127 { 128 int i, num_qps = hinic_hwdev_num_qps(nic_dev->hwdev); 129 130 for (i = 0; i < num_qps; i++) 131 update_rx_stats(nic_dev, &nic_dev->rxqs[i]); 132 133 for (i = 0; i < num_qps; i++) 134 update_tx_stats(nic_dev, &nic_dev->txqs[i]); 135 } 136 137 /** 138 * create_txqs - Create the Logical Tx Queues of specific NIC device 139 * @nic_dev: the specific NIC device 140 * 141 * Return 0 - Success, negative - Failure 142 **/ 143 static int create_txqs(struct hinic_dev *nic_dev) 144 { 145 int err, i, j, num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev); 146 struct net_device *netdev = nic_dev->netdev; 147 size_t txq_size; 148 149 if (nic_dev->txqs) 150 return -EINVAL; 151 152 txq_size = num_txqs * sizeof(*nic_dev->txqs); 153 nic_dev->txqs = devm_kzalloc(&netdev->dev, txq_size, GFP_KERNEL); 154 if (!nic_dev->txqs) 155 return -ENOMEM; 156 157 hinic_sq_dbgfs_init(nic_dev); 158 159 for (i = 0; i < num_txqs; i++) { 160 struct hinic_sq *sq = hinic_hwdev_get_sq(nic_dev->hwdev, i); 161 162 err = hinic_init_txq(&nic_dev->txqs[i], sq, netdev); 163 if (err) { 164 netif_err(nic_dev, drv, netdev, 165 "Failed to init Txq\n"); 166 goto err_init_txq; 167 } 168 169 err = hinic_sq_debug_add(nic_dev, i); 170 if (err) { 171 netif_err(nic_dev, drv, netdev, 172 "Failed to add SQ%d debug\n", i); 173 goto err_add_sq_dbg; 174 } 175 176 } 177 178 return 0; 179 180 err_add_sq_dbg: 181 hinic_clean_txq(&nic_dev->txqs[i]); 182 err_init_txq: 183 for (j = 0; j < i; j++) { 184 hinic_sq_debug_rem(nic_dev->txqs[j].sq); 185 hinic_clean_txq(&nic_dev->txqs[j]); 186 } 187 188 hinic_sq_dbgfs_uninit(nic_dev); 189 190 devm_kfree(&netdev->dev, nic_dev->txqs); 191 return err; 192 } 193 194 /** 195 * free_txqs - Free the Logical Tx Queues of specific NIC device 196 * @nic_dev: the specific NIC device 197 **/ 198 static void free_txqs(struct hinic_dev *nic_dev) 199 { 200 int i, num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev); 201 struct net_device *netdev = nic_dev->netdev; 202 203 if (!nic_dev->txqs) 204 return; 205 206 for (i = 0; i < num_txqs; i++) { 207 hinic_sq_debug_rem(nic_dev->txqs[i].sq); 208 hinic_clean_txq(&nic_dev->txqs[i]); 209 } 210 211 hinic_sq_dbgfs_uninit(nic_dev); 212 213 devm_kfree(&netdev->dev, nic_dev->txqs); 214 nic_dev->txqs = NULL; 215 } 216 217 /** 218 * create_txqs - Create the Logical Rx Queues of specific NIC device 219 * @nic_dev: the specific NIC device 220 * 221 * Return 0 - Success, negative - Failure 222 **/ 223 static int create_rxqs(struct hinic_dev *nic_dev) 224 { 225 int err, i, j, num_rxqs = hinic_hwdev_num_qps(nic_dev->hwdev); 226 struct net_device *netdev = nic_dev->netdev; 227 size_t rxq_size; 228 229 if (nic_dev->rxqs) 230 return -EINVAL; 231 232 rxq_size = num_rxqs * sizeof(*nic_dev->rxqs); 233 nic_dev->rxqs = devm_kzalloc(&netdev->dev, rxq_size, GFP_KERNEL); 234 if (!nic_dev->rxqs) 235 return -ENOMEM; 236 237 hinic_rq_dbgfs_init(nic_dev); 238 239 for (i = 0; i < num_rxqs; i++) { 240 struct hinic_rq *rq = hinic_hwdev_get_rq(nic_dev->hwdev, i); 241 242 err = hinic_init_rxq(&nic_dev->rxqs[i], rq, netdev); 243 if (err) { 244 netif_err(nic_dev, drv, netdev, 245 "Failed to init rxq\n"); 246 goto err_init_rxq; 247 } 248 249 err = hinic_rq_debug_add(nic_dev, i); 250 if (err) { 251 netif_err(nic_dev, drv, netdev, 252 "Failed to add RQ%d debug\n", i); 253 goto err_add_rq_dbg; 254 } 255 } 256 257 return 0; 258 259 err_add_rq_dbg: 260 hinic_clean_rxq(&nic_dev->rxqs[i]); 261 err_init_rxq: 262 for (j = 0; j < i; j++) { 263 hinic_rq_debug_rem(nic_dev->rxqs[j].rq); 264 hinic_clean_rxq(&nic_dev->rxqs[j]); 265 } 266 267 hinic_rq_dbgfs_uninit(nic_dev); 268 269 devm_kfree(&netdev->dev, nic_dev->rxqs); 270 return err; 271 } 272 273 /** 274 * free_txqs - Free the Logical Rx Queues of specific NIC device 275 * @nic_dev: the specific NIC device 276 **/ 277 static void free_rxqs(struct hinic_dev *nic_dev) 278 { 279 int i, num_rxqs = hinic_hwdev_num_qps(nic_dev->hwdev); 280 struct net_device *netdev = nic_dev->netdev; 281 282 if (!nic_dev->rxqs) 283 return; 284 285 for (i = 0; i < num_rxqs; i++) { 286 hinic_rq_debug_rem(nic_dev->rxqs[i].rq); 287 hinic_clean_rxq(&nic_dev->rxqs[i]); 288 } 289 290 hinic_rq_dbgfs_uninit(nic_dev); 291 292 devm_kfree(&netdev->dev, nic_dev->rxqs); 293 nic_dev->rxqs = NULL; 294 } 295 296 static int hinic_configure_max_qnum(struct hinic_dev *nic_dev) 297 { 298 int err; 299 300 err = hinic_set_max_qnum(nic_dev, nic_dev->hwdev->nic_cap.max_qps); 301 if (err) 302 return err; 303 304 return 0; 305 } 306 307 static int hinic_rss_init(struct hinic_dev *nic_dev) 308 { 309 u8 default_rss_key[HINIC_RSS_KEY_SIZE]; 310 u8 tmpl_idx = nic_dev->rss_tmpl_idx; 311 u32 *indir_tbl; 312 int err, i; 313 314 indir_tbl = kcalloc(HINIC_RSS_INDIR_SIZE, sizeof(u32), GFP_KERNEL); 315 if (!indir_tbl) 316 return -ENOMEM; 317 318 netdev_rss_key_fill(default_rss_key, sizeof(default_rss_key)); 319 for (i = 0; i < HINIC_RSS_INDIR_SIZE; i++) 320 indir_tbl[i] = ethtool_rxfh_indir_default(i, nic_dev->num_rss); 321 322 err = hinic_rss_set_template_tbl(nic_dev, tmpl_idx, default_rss_key); 323 if (err) 324 goto out; 325 326 err = hinic_rss_set_indir_tbl(nic_dev, tmpl_idx, indir_tbl); 327 if (err) 328 goto out; 329 330 err = hinic_set_rss_type(nic_dev, tmpl_idx, nic_dev->rss_type); 331 if (err) 332 goto out; 333 334 err = hinic_rss_set_hash_engine(nic_dev, tmpl_idx, 335 nic_dev->rss_hash_engine); 336 if (err) 337 goto out; 338 339 err = hinic_rss_cfg(nic_dev, 1, tmpl_idx); 340 if (err) 341 goto out; 342 343 out: 344 kfree(indir_tbl); 345 return err; 346 } 347 348 static void hinic_rss_deinit(struct hinic_dev *nic_dev) 349 { 350 hinic_rss_cfg(nic_dev, 0, nic_dev->rss_tmpl_idx); 351 } 352 353 static void hinic_init_rss_parameters(struct hinic_dev *nic_dev) 354 { 355 nic_dev->rss_hash_engine = HINIC_RSS_HASH_ENGINE_TYPE_XOR; 356 nic_dev->rss_type.tcp_ipv6_ext = 1; 357 nic_dev->rss_type.ipv6_ext = 1; 358 nic_dev->rss_type.tcp_ipv6 = 1; 359 nic_dev->rss_type.ipv6 = 1; 360 nic_dev->rss_type.tcp_ipv4 = 1; 361 nic_dev->rss_type.ipv4 = 1; 362 nic_dev->rss_type.udp_ipv6 = 1; 363 nic_dev->rss_type.udp_ipv4 = 1; 364 } 365 366 static void hinic_enable_rss(struct hinic_dev *nic_dev) 367 { 368 struct net_device *netdev = nic_dev->netdev; 369 struct hinic_hwdev *hwdev = nic_dev->hwdev; 370 struct hinic_hwif *hwif = hwdev->hwif; 371 struct pci_dev *pdev = hwif->pdev; 372 int i, node, err = 0; 373 u16 num_cpus = 0; 374 375 if (nic_dev->max_qps <= 1) { 376 nic_dev->flags &= ~HINIC_RSS_ENABLE; 377 nic_dev->rss_limit = nic_dev->max_qps; 378 nic_dev->num_qps = nic_dev->max_qps; 379 nic_dev->num_rss = nic_dev->max_qps; 380 381 return; 382 } 383 384 err = hinic_rss_template_alloc(nic_dev, &nic_dev->rss_tmpl_idx); 385 if (err) { 386 netif_err(nic_dev, drv, netdev, 387 "Failed to alloc tmpl_idx for rss, can't enable rss for this function\n"); 388 nic_dev->flags &= ~HINIC_RSS_ENABLE; 389 nic_dev->max_qps = 1; 390 nic_dev->rss_limit = nic_dev->max_qps; 391 nic_dev->num_qps = nic_dev->max_qps; 392 nic_dev->num_rss = nic_dev->max_qps; 393 394 return; 395 } 396 397 nic_dev->flags |= HINIC_RSS_ENABLE; 398 399 for (i = 0; i < num_online_cpus(); i++) { 400 node = cpu_to_node(i); 401 if (node == dev_to_node(&pdev->dev)) 402 num_cpus++; 403 } 404 405 if (!num_cpus) 406 num_cpus = num_online_cpus(); 407 408 nic_dev->num_qps = hinic_hwdev_num_qps(hwdev); 409 nic_dev->num_qps = min_t(u16, nic_dev->num_qps, num_cpus); 410 411 nic_dev->rss_limit = nic_dev->num_qps; 412 nic_dev->num_rss = nic_dev->num_qps; 413 414 hinic_init_rss_parameters(nic_dev); 415 err = hinic_rss_init(nic_dev); 416 if (err) 417 netif_err(nic_dev, drv, netdev, "Failed to init rss\n"); 418 } 419 420 int hinic_open(struct net_device *netdev) 421 { 422 struct hinic_dev *nic_dev = netdev_priv(netdev); 423 enum hinic_port_link_state link_state; 424 int err, ret; 425 426 if (!(nic_dev->flags & HINIC_INTF_UP)) { 427 err = hinic_hwdev_ifup(nic_dev->hwdev, nic_dev->sq_depth, 428 nic_dev->rq_depth); 429 if (err) { 430 netif_err(nic_dev, drv, netdev, 431 "Failed - HW interface up\n"); 432 return err; 433 } 434 } 435 436 err = create_txqs(nic_dev); 437 if (err) { 438 netif_err(nic_dev, drv, netdev, 439 "Failed to create Tx queues\n"); 440 goto err_create_txqs; 441 } 442 443 err = create_rxqs(nic_dev); 444 if (err) { 445 netif_err(nic_dev, drv, netdev, 446 "Failed to create Rx queues\n"); 447 goto err_create_rxqs; 448 } 449 450 hinic_enable_rss(nic_dev); 451 452 err = hinic_configure_max_qnum(nic_dev); 453 if (err) { 454 netif_err(nic_dev, drv, nic_dev->netdev, 455 "Failed to configure the maximum number of queues\n"); 456 goto err_port_state; 457 } 458 459 netif_set_real_num_tx_queues(netdev, nic_dev->num_qps); 460 netif_set_real_num_rx_queues(netdev, nic_dev->num_qps); 461 462 err = hinic_port_set_state(nic_dev, HINIC_PORT_ENABLE); 463 if (err) { 464 netif_err(nic_dev, drv, netdev, 465 "Failed to set port state\n"); 466 goto err_port_state; 467 } 468 469 err = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_ENABLE); 470 if (err) { 471 netif_err(nic_dev, drv, netdev, 472 "Failed to set func port state\n"); 473 goto err_func_port_state; 474 } 475 476 down(&nic_dev->mgmt_lock); 477 478 err = hinic_port_link_state(nic_dev, &link_state); 479 if (err) { 480 netif_err(nic_dev, drv, netdev, "Failed to get link state\n"); 481 goto err_port_link; 482 } 483 484 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) 485 hinic_notify_all_vfs_link_changed(nic_dev->hwdev, link_state); 486 487 if (link_state == HINIC_LINK_STATE_UP) { 488 nic_dev->flags |= HINIC_LINK_UP; 489 nic_dev->cable_unplugged = false; 490 nic_dev->module_unrecognized = false; 491 } 492 493 nic_dev->flags |= HINIC_INTF_UP; 494 495 if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) == 496 (HINIC_LINK_UP | HINIC_INTF_UP)) { 497 netif_info(nic_dev, drv, netdev, "link + intf UP\n"); 498 netif_carrier_on(netdev); 499 netif_tx_wake_all_queues(netdev); 500 } 501 502 up(&nic_dev->mgmt_lock); 503 504 netif_info(nic_dev, drv, netdev, "HINIC_INTF is UP\n"); 505 return 0; 506 507 err_port_link: 508 up(&nic_dev->mgmt_lock); 509 ret = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE); 510 if (ret) 511 netif_warn(nic_dev, drv, netdev, 512 "Failed to revert func port state\n"); 513 514 err_func_port_state: 515 ret = hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE); 516 if (ret) 517 netif_warn(nic_dev, drv, netdev, 518 "Failed to revert port state\n"); 519 err_port_state: 520 free_rxqs(nic_dev); 521 if (nic_dev->flags & HINIC_RSS_ENABLE) { 522 hinic_rss_deinit(nic_dev); 523 hinic_rss_template_free(nic_dev, nic_dev->rss_tmpl_idx); 524 } 525 526 err_create_rxqs: 527 free_txqs(nic_dev); 528 529 err_create_txqs: 530 if (!(nic_dev->flags & HINIC_INTF_UP)) 531 hinic_hwdev_ifdown(nic_dev->hwdev); 532 return err; 533 } 534 535 int hinic_close(struct net_device *netdev) 536 { 537 struct hinic_dev *nic_dev = netdev_priv(netdev); 538 unsigned int flags; 539 540 down(&nic_dev->mgmt_lock); 541 542 flags = nic_dev->flags; 543 nic_dev->flags &= ~HINIC_INTF_UP; 544 545 netif_carrier_off(netdev); 546 netif_tx_disable(netdev); 547 548 update_nic_stats(nic_dev); 549 550 up(&nic_dev->mgmt_lock); 551 552 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) 553 hinic_notify_all_vfs_link_changed(nic_dev->hwdev, 0); 554 555 hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE); 556 557 hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE); 558 559 if (nic_dev->flags & HINIC_RSS_ENABLE) { 560 hinic_rss_deinit(nic_dev); 561 hinic_rss_template_free(nic_dev, nic_dev->rss_tmpl_idx); 562 } 563 564 free_rxqs(nic_dev); 565 free_txqs(nic_dev); 566 567 if (flags & HINIC_INTF_UP) 568 hinic_hwdev_ifdown(nic_dev->hwdev); 569 570 netif_info(nic_dev, drv, netdev, "HINIC_INTF is DOWN\n"); 571 return 0; 572 } 573 574 static int hinic_change_mtu(struct net_device *netdev, int new_mtu) 575 { 576 struct hinic_dev *nic_dev = netdev_priv(netdev); 577 int err; 578 579 netif_info(nic_dev, drv, netdev, "set_mtu = %d\n", new_mtu); 580 581 err = hinic_port_set_mtu(nic_dev, new_mtu); 582 if (err) 583 netif_err(nic_dev, drv, netdev, "Failed to set port mtu\n"); 584 else 585 netdev->mtu = new_mtu; 586 587 return err; 588 } 589 590 /** 591 * change_mac_addr - change the main mac address of network device 592 * @netdev: network device 593 * @addr: mac address to set 594 * 595 * Return 0 - Success, negative - Failure 596 **/ 597 static int change_mac_addr(struct net_device *netdev, const u8 *addr) 598 { 599 struct hinic_dev *nic_dev = netdev_priv(netdev); 600 u16 vid = 0; 601 int err; 602 603 if (!is_valid_ether_addr(addr)) 604 return -EADDRNOTAVAIL; 605 606 netif_info(nic_dev, drv, netdev, "change mac addr = %02x %02x %02x %02x %02x %02x\n", 607 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 608 609 down(&nic_dev->mgmt_lock); 610 611 do { 612 err = hinic_port_del_mac(nic_dev, netdev->dev_addr, vid); 613 if (err) { 614 netif_err(nic_dev, drv, netdev, 615 "Failed to delete mac\n"); 616 break; 617 } 618 619 err = hinic_port_add_mac(nic_dev, addr, vid); 620 if (err) { 621 netif_err(nic_dev, drv, netdev, "Failed to add mac\n"); 622 break; 623 } 624 625 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1); 626 } while (vid != VLAN_N_VID); 627 628 up(&nic_dev->mgmt_lock); 629 return err; 630 } 631 632 static int hinic_set_mac_addr(struct net_device *netdev, void *addr) 633 { 634 unsigned char new_mac[ETH_ALEN]; 635 struct sockaddr *saddr = addr; 636 int err; 637 638 memcpy(new_mac, saddr->sa_data, ETH_ALEN); 639 640 err = change_mac_addr(netdev, new_mac); 641 if (!err) 642 memcpy(netdev->dev_addr, new_mac, ETH_ALEN); 643 644 return err; 645 } 646 647 /** 648 * add_mac_addr - add mac address to network device 649 * @netdev: network device 650 * @addr: mac address to add 651 * 652 * Return 0 - Success, negative - Failure 653 **/ 654 static int add_mac_addr(struct net_device *netdev, const u8 *addr) 655 { 656 struct hinic_dev *nic_dev = netdev_priv(netdev); 657 u16 vid = 0; 658 int err; 659 660 netif_info(nic_dev, drv, netdev, "set mac addr = %02x %02x %02x %02x %02x %02x\n", 661 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 662 663 down(&nic_dev->mgmt_lock); 664 665 do { 666 err = hinic_port_add_mac(nic_dev, addr, vid); 667 if (err) { 668 netif_err(nic_dev, drv, netdev, "Failed to add mac\n"); 669 break; 670 } 671 672 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1); 673 } while (vid != VLAN_N_VID); 674 675 up(&nic_dev->mgmt_lock); 676 return err; 677 } 678 679 /** 680 * remove_mac_addr - remove mac address from network device 681 * @netdev: network device 682 * @addr: mac address to remove 683 * 684 * Return 0 - Success, negative - Failure 685 **/ 686 static int remove_mac_addr(struct net_device *netdev, const u8 *addr) 687 { 688 struct hinic_dev *nic_dev = netdev_priv(netdev); 689 u16 vid = 0; 690 int err; 691 692 if (!is_valid_ether_addr(addr)) 693 return -EADDRNOTAVAIL; 694 695 netif_info(nic_dev, drv, netdev, "remove mac addr = %02x %02x %02x %02x %02x %02x\n", 696 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 697 698 down(&nic_dev->mgmt_lock); 699 700 do { 701 err = hinic_port_del_mac(nic_dev, addr, vid); 702 if (err) { 703 netif_err(nic_dev, drv, netdev, 704 "Failed to delete mac\n"); 705 break; 706 } 707 708 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1); 709 } while (vid != VLAN_N_VID); 710 711 up(&nic_dev->mgmt_lock); 712 return err; 713 } 714 715 static int hinic_vlan_rx_add_vid(struct net_device *netdev, 716 __always_unused __be16 proto, u16 vid) 717 { 718 struct hinic_dev *nic_dev = netdev_priv(netdev); 719 int ret, err; 720 721 netif_info(nic_dev, drv, netdev, "add vid = %d\n", vid); 722 723 down(&nic_dev->mgmt_lock); 724 725 err = hinic_port_add_vlan(nic_dev, vid); 726 if (err) { 727 netif_err(nic_dev, drv, netdev, "Failed to add vlan\n"); 728 goto err_vlan_add; 729 } 730 731 err = hinic_port_add_mac(nic_dev, netdev->dev_addr, vid); 732 if (err && err != HINIC_PF_SET_VF_ALREADY) { 733 netif_err(nic_dev, drv, netdev, "Failed to set mac\n"); 734 goto err_add_mac; 735 } 736 737 bitmap_set(nic_dev->vlan_bitmap, vid, 1); 738 739 up(&nic_dev->mgmt_lock); 740 return 0; 741 742 err_add_mac: 743 ret = hinic_port_del_vlan(nic_dev, vid); 744 if (ret) 745 netif_err(nic_dev, drv, netdev, 746 "Failed to revert by removing vlan\n"); 747 748 err_vlan_add: 749 up(&nic_dev->mgmt_lock); 750 return err; 751 } 752 753 static int hinic_vlan_rx_kill_vid(struct net_device *netdev, 754 __always_unused __be16 proto, u16 vid) 755 { 756 struct hinic_dev *nic_dev = netdev_priv(netdev); 757 int err; 758 759 netif_info(nic_dev, drv, netdev, "remove vid = %d\n", vid); 760 761 down(&nic_dev->mgmt_lock); 762 763 err = hinic_port_del_vlan(nic_dev, vid); 764 if (err) { 765 netif_err(nic_dev, drv, netdev, "Failed to delete vlan\n"); 766 goto err_del_vlan; 767 } 768 769 bitmap_clear(nic_dev->vlan_bitmap, vid, 1); 770 771 up(&nic_dev->mgmt_lock); 772 return 0; 773 774 err_del_vlan: 775 up(&nic_dev->mgmt_lock); 776 return err; 777 } 778 779 static void set_rx_mode(struct work_struct *work) 780 { 781 struct hinic_rx_mode_work *rx_mode_work = work_to_rx_mode_work(work); 782 struct hinic_dev *nic_dev = rx_mode_work_to_nic_dev(rx_mode_work); 783 784 hinic_port_set_rx_mode(nic_dev, rx_mode_work->rx_mode); 785 786 __dev_uc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr); 787 __dev_mc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr); 788 } 789 790 static void hinic_set_rx_mode(struct net_device *netdev) 791 { 792 struct hinic_dev *nic_dev = netdev_priv(netdev); 793 struct hinic_rx_mode_work *rx_mode_work; 794 u32 rx_mode; 795 796 rx_mode_work = &nic_dev->rx_mode_work; 797 798 rx_mode = HINIC_RX_MODE_UC | 799 HINIC_RX_MODE_MC | 800 HINIC_RX_MODE_BC; 801 802 if (netdev->flags & IFF_PROMISC) { 803 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) 804 rx_mode |= HINIC_RX_MODE_PROMISC; 805 } else if (netdev->flags & IFF_ALLMULTI) { 806 rx_mode |= HINIC_RX_MODE_MC_ALL; 807 } 808 809 rx_mode_work->rx_mode = rx_mode; 810 811 queue_work(nic_dev->workq, &rx_mode_work->work); 812 } 813 814 static void hinic_tx_timeout(struct net_device *netdev, unsigned int txqueue) 815 { 816 struct hinic_dev *nic_dev = netdev_priv(netdev); 817 u16 sw_pi, hw_ci, sw_ci; 818 struct hinic_sq *sq; 819 u16 num_sqs, q_id; 820 821 num_sqs = hinic_hwdev_num_qps(nic_dev->hwdev); 822 823 netif_err(nic_dev, drv, netdev, "Tx timeout\n"); 824 825 for (q_id = 0; q_id < num_sqs; q_id++) { 826 if (!netif_xmit_stopped(netdev_get_tx_queue(netdev, q_id))) 827 continue; 828 829 sq = hinic_hwdev_get_sq(nic_dev->hwdev, q_id); 830 sw_pi = atomic_read(&sq->wq->prod_idx) & sq->wq->mask; 831 hw_ci = be16_to_cpu(*(u16 *)(sq->hw_ci_addr)) & sq->wq->mask; 832 sw_ci = atomic_read(&sq->wq->cons_idx) & sq->wq->mask; 833 netif_err(nic_dev, drv, netdev, "Txq%d: sw_pi: %d, hw_ci: %d, sw_ci: %d, napi->state: 0x%lx\n", 834 q_id, sw_pi, hw_ci, sw_ci, 835 nic_dev->txqs[q_id].napi.state); 836 } 837 } 838 839 static void hinic_get_stats64(struct net_device *netdev, 840 struct rtnl_link_stats64 *stats) 841 { 842 struct hinic_dev *nic_dev = netdev_priv(netdev); 843 struct hinic_rxq_stats *nic_rx_stats; 844 struct hinic_txq_stats *nic_tx_stats; 845 846 nic_rx_stats = &nic_dev->rx_stats; 847 nic_tx_stats = &nic_dev->tx_stats; 848 849 down(&nic_dev->mgmt_lock); 850 851 if (nic_dev->flags & HINIC_INTF_UP) 852 update_nic_stats(nic_dev); 853 854 up(&nic_dev->mgmt_lock); 855 856 stats->rx_bytes = nic_rx_stats->bytes; 857 stats->rx_packets = nic_rx_stats->pkts; 858 stats->rx_errors = nic_rx_stats->errors; 859 860 stats->tx_bytes = nic_tx_stats->bytes; 861 stats->tx_packets = nic_tx_stats->pkts; 862 stats->tx_errors = nic_tx_stats->tx_dropped; 863 } 864 865 static int hinic_set_features(struct net_device *netdev, 866 netdev_features_t features) 867 { 868 struct hinic_dev *nic_dev = netdev_priv(netdev); 869 870 return set_features(nic_dev, nic_dev->netdev->features, 871 features, false); 872 } 873 874 static netdev_features_t hinic_fix_features(struct net_device *netdev, 875 netdev_features_t features) 876 { 877 struct hinic_dev *nic_dev = netdev_priv(netdev); 878 879 /* If Rx checksum is disabled, then LRO should also be disabled */ 880 if (!(features & NETIF_F_RXCSUM)) { 881 netif_info(nic_dev, drv, netdev, "disabling LRO as RXCSUM is off\n"); 882 features &= ~NETIF_F_LRO; 883 } 884 885 return features; 886 } 887 888 static const struct net_device_ops hinic_netdev_ops = { 889 .ndo_open = hinic_open, 890 .ndo_stop = hinic_close, 891 .ndo_change_mtu = hinic_change_mtu, 892 .ndo_set_mac_address = hinic_set_mac_addr, 893 .ndo_validate_addr = eth_validate_addr, 894 .ndo_vlan_rx_add_vid = hinic_vlan_rx_add_vid, 895 .ndo_vlan_rx_kill_vid = hinic_vlan_rx_kill_vid, 896 .ndo_set_rx_mode = hinic_set_rx_mode, 897 .ndo_start_xmit = hinic_xmit_frame, 898 .ndo_tx_timeout = hinic_tx_timeout, 899 .ndo_get_stats64 = hinic_get_stats64, 900 .ndo_fix_features = hinic_fix_features, 901 .ndo_set_features = hinic_set_features, 902 .ndo_set_vf_mac = hinic_ndo_set_vf_mac, 903 .ndo_set_vf_vlan = hinic_ndo_set_vf_vlan, 904 .ndo_get_vf_config = hinic_ndo_get_vf_config, 905 .ndo_set_vf_trust = hinic_ndo_set_vf_trust, 906 .ndo_set_vf_rate = hinic_ndo_set_vf_bw, 907 .ndo_set_vf_spoofchk = hinic_ndo_set_vf_spoofchk, 908 .ndo_set_vf_link_state = hinic_ndo_set_vf_link_state, 909 }; 910 911 static const struct net_device_ops hinicvf_netdev_ops = { 912 .ndo_open = hinic_open, 913 .ndo_stop = hinic_close, 914 .ndo_change_mtu = hinic_change_mtu, 915 .ndo_set_mac_address = hinic_set_mac_addr, 916 .ndo_validate_addr = eth_validate_addr, 917 .ndo_vlan_rx_add_vid = hinic_vlan_rx_add_vid, 918 .ndo_vlan_rx_kill_vid = hinic_vlan_rx_kill_vid, 919 .ndo_set_rx_mode = hinic_set_rx_mode, 920 .ndo_start_xmit = hinic_xmit_frame, 921 .ndo_tx_timeout = hinic_tx_timeout, 922 .ndo_get_stats64 = hinic_get_stats64, 923 .ndo_fix_features = hinic_fix_features, 924 .ndo_set_features = hinic_set_features, 925 }; 926 927 static void netdev_features_init(struct net_device *netdev) 928 { 929 netdev->hw_features = NETIF_F_SG | NETIF_F_HIGHDMA | NETIF_F_IP_CSUM | 930 NETIF_F_IPV6_CSUM | NETIF_F_TSO | NETIF_F_TSO6 | 931 NETIF_F_RXCSUM | NETIF_F_LRO | 932 NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX; 933 934 netdev->vlan_features = netdev->hw_features; 935 936 netdev->features = netdev->hw_features | NETIF_F_HW_VLAN_CTAG_FILTER; 937 } 938 939 static void hinic_refresh_nic_cfg(struct hinic_dev *nic_dev) 940 { 941 struct hinic_nic_cfg *nic_cfg = &nic_dev->hwdev->func_to_io.nic_cfg; 942 struct hinic_pause_config pause_info = {0}; 943 struct hinic_port_cap port_cap = {0}; 944 945 if (hinic_port_get_cap(nic_dev, &port_cap)) 946 return; 947 948 mutex_lock(&nic_cfg->cfg_mutex); 949 if (nic_cfg->pause_set || !port_cap.autoneg_state) { 950 nic_cfg->auto_neg = port_cap.autoneg_state; 951 pause_info.auto_neg = nic_cfg->auto_neg; 952 pause_info.rx_pause = nic_cfg->rx_pause; 953 pause_info.tx_pause = nic_cfg->tx_pause; 954 hinic_set_hw_pause_info(nic_dev->hwdev, &pause_info); 955 } 956 mutex_unlock(&nic_cfg->cfg_mutex); 957 } 958 959 /** 960 * link_status_event_handler - link event handler 961 * @handle: nic device for the handler 962 * @buf_in: input buffer 963 * @in_size: input size 964 * @buf_in: output buffer 965 * @out_size: returned output size 966 * 967 * Return 0 - Success, negative - Failure 968 **/ 969 static void link_status_event_handler(void *handle, void *buf_in, u16 in_size, 970 void *buf_out, u16 *out_size) 971 { 972 struct hinic_port_link_status *link_status, *ret_link_status; 973 struct hinic_dev *nic_dev = handle; 974 975 link_status = buf_in; 976 977 if (link_status->link == HINIC_LINK_STATE_UP) { 978 down(&nic_dev->mgmt_lock); 979 980 nic_dev->flags |= HINIC_LINK_UP; 981 nic_dev->cable_unplugged = false; 982 nic_dev->module_unrecognized = false; 983 984 if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) == 985 (HINIC_LINK_UP | HINIC_INTF_UP)) { 986 netif_carrier_on(nic_dev->netdev); 987 netif_tx_wake_all_queues(nic_dev->netdev); 988 } 989 990 up(&nic_dev->mgmt_lock); 991 992 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) 993 hinic_refresh_nic_cfg(nic_dev); 994 995 netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is UP\n"); 996 } else { 997 down(&nic_dev->mgmt_lock); 998 999 nic_dev->flags &= ~HINIC_LINK_UP; 1000 1001 netif_carrier_off(nic_dev->netdev); 1002 netif_tx_disable(nic_dev->netdev); 1003 1004 up(&nic_dev->mgmt_lock); 1005 1006 netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is DOWN\n"); 1007 } 1008 1009 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) 1010 hinic_notify_all_vfs_link_changed(nic_dev->hwdev, 1011 link_status->link); 1012 1013 ret_link_status = buf_out; 1014 ret_link_status->status = 0; 1015 1016 *out_size = sizeof(*ret_link_status); 1017 } 1018 1019 static void cable_plug_event(void *handle, 1020 void *buf_in, u16 in_size, 1021 void *buf_out, u16 *out_size) 1022 { 1023 struct hinic_cable_plug_event *plug_event = buf_in; 1024 struct hinic_dev *nic_dev = handle; 1025 1026 nic_dev->cable_unplugged = plug_event->plugged ? false : true; 1027 1028 *out_size = sizeof(*plug_event); 1029 plug_event = buf_out; 1030 plug_event->status = 0; 1031 } 1032 1033 static void link_err_event(void *handle, 1034 void *buf_in, u16 in_size, 1035 void *buf_out, u16 *out_size) 1036 { 1037 struct hinic_link_err_event *link_err = buf_in; 1038 struct hinic_dev *nic_dev = handle; 1039 1040 if (link_err->err_type >= LINK_ERR_NUM) 1041 netif_info(nic_dev, link, nic_dev->netdev, 1042 "Link failed, Unknown error type: 0x%x\n", 1043 link_err->err_type); 1044 else 1045 nic_dev->module_unrecognized = true; 1046 1047 *out_size = sizeof(*link_err); 1048 link_err = buf_out; 1049 link_err->status = 0; 1050 } 1051 1052 static int set_features(struct hinic_dev *nic_dev, 1053 netdev_features_t pre_features, 1054 netdev_features_t features, bool force_change) 1055 { 1056 netdev_features_t changed = force_change ? ~0 : pre_features ^ features; 1057 u32 csum_en = HINIC_RX_CSUM_OFFLOAD_EN; 1058 netdev_features_t failed_features = 0; 1059 int ret = 0; 1060 int err = 0; 1061 1062 if (changed & NETIF_F_TSO) { 1063 ret = hinic_port_set_tso(nic_dev, (features & NETIF_F_TSO) ? 1064 HINIC_TSO_ENABLE : HINIC_TSO_DISABLE); 1065 if (ret) { 1066 err = ret; 1067 failed_features |= NETIF_F_TSO; 1068 } 1069 } 1070 1071 if (changed & NETIF_F_RXCSUM) { 1072 ret = hinic_set_rx_csum_offload(nic_dev, csum_en); 1073 if (ret) { 1074 err = ret; 1075 failed_features |= NETIF_F_RXCSUM; 1076 } 1077 } 1078 1079 if (changed & NETIF_F_LRO) { 1080 ret = hinic_set_rx_lro_state(nic_dev, 1081 !!(features & NETIF_F_LRO), 1082 HINIC_LRO_RX_TIMER_DEFAULT, 1083 HINIC_LRO_MAX_WQE_NUM_DEFAULT); 1084 if (ret) { 1085 err = ret; 1086 failed_features |= NETIF_F_LRO; 1087 } 1088 } 1089 1090 if (changed & NETIF_F_HW_VLAN_CTAG_RX) { 1091 ret = hinic_set_rx_vlan_offload(nic_dev, 1092 !!(features & 1093 NETIF_F_HW_VLAN_CTAG_RX)); 1094 if (ret) { 1095 err = ret; 1096 failed_features |= NETIF_F_HW_VLAN_CTAG_RX; 1097 } 1098 } 1099 1100 if (err) { 1101 nic_dev->netdev->features = features ^ failed_features; 1102 return -EIO; 1103 } 1104 1105 return 0; 1106 } 1107 1108 static int hinic_init_intr_coalesce(struct hinic_dev *nic_dev) 1109 { 1110 u64 size; 1111 u16 i; 1112 1113 size = sizeof(struct hinic_intr_coal_info) * nic_dev->max_qps; 1114 nic_dev->rx_intr_coalesce = kzalloc(size, GFP_KERNEL); 1115 if (!nic_dev->rx_intr_coalesce) 1116 return -ENOMEM; 1117 nic_dev->tx_intr_coalesce = kzalloc(size, GFP_KERNEL); 1118 if (!nic_dev->tx_intr_coalesce) { 1119 kfree(nic_dev->rx_intr_coalesce); 1120 return -ENOMEM; 1121 } 1122 1123 for (i = 0; i < nic_dev->max_qps; i++) { 1124 nic_dev->rx_intr_coalesce[i].pending_limt = 1125 HINIC_DEAULT_TXRX_MSIX_PENDING_LIMIT; 1126 nic_dev->rx_intr_coalesce[i].coalesce_timer_cfg = 1127 HINIC_DEAULT_TXRX_MSIX_COALESC_TIMER_CFG; 1128 nic_dev->rx_intr_coalesce[i].resend_timer_cfg = 1129 HINIC_DEAULT_TXRX_MSIX_RESEND_TIMER_CFG; 1130 nic_dev->tx_intr_coalesce[i].pending_limt = 1131 HINIC_DEAULT_TXRX_MSIX_PENDING_LIMIT; 1132 nic_dev->tx_intr_coalesce[i].coalesce_timer_cfg = 1133 HINIC_DEAULT_TXRX_MSIX_COALESC_TIMER_CFG; 1134 nic_dev->tx_intr_coalesce[i].resend_timer_cfg = 1135 HINIC_DEAULT_TXRX_MSIX_RESEND_TIMER_CFG; 1136 } 1137 1138 return 0; 1139 } 1140 1141 static void hinic_free_intr_coalesce(struct hinic_dev *nic_dev) 1142 { 1143 kfree(nic_dev->tx_intr_coalesce); 1144 kfree(nic_dev->rx_intr_coalesce); 1145 } 1146 1147 /** 1148 * nic_dev_init - Initialize the NIC device 1149 * @pdev: the NIC pci device 1150 * 1151 * Return 0 - Success, negative - Failure 1152 **/ 1153 static int nic_dev_init(struct pci_dev *pdev) 1154 { 1155 struct hinic_rx_mode_work *rx_mode_work; 1156 struct hinic_txq_stats *tx_stats; 1157 struct hinic_rxq_stats *rx_stats; 1158 struct hinic_dev *nic_dev; 1159 struct net_device *netdev; 1160 struct hinic_hwdev *hwdev; 1161 struct devlink *devlink; 1162 int err, num_qps; 1163 1164 devlink = hinic_devlink_alloc(); 1165 if (!devlink) { 1166 dev_err(&pdev->dev, "Hinic devlink alloc failed\n"); 1167 return -ENOMEM; 1168 } 1169 1170 hwdev = hinic_init_hwdev(pdev, devlink); 1171 if (IS_ERR(hwdev)) { 1172 dev_err(&pdev->dev, "Failed to initialize HW device\n"); 1173 hinic_devlink_free(devlink); 1174 return PTR_ERR(hwdev); 1175 } 1176 1177 num_qps = hinic_hwdev_num_qps(hwdev); 1178 if (num_qps <= 0) { 1179 dev_err(&pdev->dev, "Invalid number of QPS\n"); 1180 err = -EINVAL; 1181 goto err_num_qps; 1182 } 1183 1184 netdev = alloc_etherdev_mq(sizeof(*nic_dev), num_qps); 1185 if (!netdev) { 1186 dev_err(&pdev->dev, "Failed to allocate Ethernet device\n"); 1187 err = -ENOMEM; 1188 goto err_alloc_etherdev; 1189 } 1190 1191 if (!HINIC_IS_VF(hwdev->hwif)) 1192 netdev->netdev_ops = &hinic_netdev_ops; 1193 else 1194 netdev->netdev_ops = &hinicvf_netdev_ops; 1195 1196 netdev->max_mtu = ETH_MAX_MTU; 1197 1198 nic_dev = netdev_priv(netdev); 1199 nic_dev->netdev = netdev; 1200 nic_dev->hwdev = hwdev; 1201 nic_dev->msg_enable = MSG_ENABLE_DEFAULT; 1202 nic_dev->flags = 0; 1203 nic_dev->txqs = NULL; 1204 nic_dev->rxqs = NULL; 1205 nic_dev->tx_weight = tx_weight; 1206 nic_dev->rx_weight = rx_weight; 1207 nic_dev->sq_depth = HINIC_SQ_DEPTH; 1208 nic_dev->rq_depth = HINIC_RQ_DEPTH; 1209 nic_dev->sriov_info.hwdev = hwdev; 1210 nic_dev->sriov_info.pdev = pdev; 1211 nic_dev->max_qps = num_qps; 1212 nic_dev->devlink = devlink; 1213 1214 hinic_set_ethtool_ops(netdev); 1215 1216 sema_init(&nic_dev->mgmt_lock, 1); 1217 1218 tx_stats = &nic_dev->tx_stats; 1219 rx_stats = &nic_dev->rx_stats; 1220 1221 u64_stats_init(&tx_stats->syncp); 1222 u64_stats_init(&rx_stats->syncp); 1223 1224 nic_dev->vlan_bitmap = devm_kzalloc(&pdev->dev, 1225 VLAN_BITMAP_SIZE(nic_dev), 1226 GFP_KERNEL); 1227 if (!nic_dev->vlan_bitmap) { 1228 err = -ENOMEM; 1229 goto err_vlan_bitmap; 1230 } 1231 1232 nic_dev->workq = create_singlethread_workqueue(HINIC_WQ_NAME); 1233 if (!nic_dev->workq) { 1234 err = -ENOMEM; 1235 goto err_workq; 1236 } 1237 1238 pci_set_drvdata(pdev, netdev); 1239 1240 err = hinic_port_get_mac(nic_dev, netdev->dev_addr); 1241 if (err) { 1242 dev_err(&pdev->dev, "Failed to get mac address\n"); 1243 goto err_get_mac; 1244 } 1245 1246 if (!is_valid_ether_addr(netdev->dev_addr)) { 1247 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) { 1248 dev_err(&pdev->dev, "Invalid MAC address\n"); 1249 err = -EIO; 1250 goto err_add_mac; 1251 } 1252 1253 dev_info(&pdev->dev, "Invalid MAC address %pM, using random\n", 1254 netdev->dev_addr); 1255 eth_hw_addr_random(netdev); 1256 } 1257 1258 err = hinic_port_add_mac(nic_dev, netdev->dev_addr, 0); 1259 if (err && err != HINIC_PF_SET_VF_ALREADY) { 1260 dev_err(&pdev->dev, "Failed to add mac\n"); 1261 goto err_add_mac; 1262 } 1263 1264 err = hinic_port_set_mtu(nic_dev, netdev->mtu); 1265 if (err) { 1266 dev_err(&pdev->dev, "Failed to set mtu\n"); 1267 goto err_set_mtu; 1268 } 1269 1270 rx_mode_work = &nic_dev->rx_mode_work; 1271 INIT_WORK(&rx_mode_work->work, set_rx_mode); 1272 1273 netdev_features_init(netdev); 1274 1275 netif_carrier_off(netdev); 1276 1277 hinic_hwdev_cb_register(nic_dev->hwdev, HINIC_MGMT_MSG_CMD_LINK_STATUS, 1278 nic_dev, link_status_event_handler); 1279 hinic_hwdev_cb_register(nic_dev->hwdev, 1280 HINIC_MGMT_MSG_CMD_CABLE_PLUG_EVENT, 1281 nic_dev, cable_plug_event); 1282 hinic_hwdev_cb_register(nic_dev->hwdev, 1283 HINIC_MGMT_MSG_CMD_LINK_ERR_EVENT, 1284 nic_dev, link_err_event); 1285 1286 err = set_features(nic_dev, 0, nic_dev->netdev->features, true); 1287 if (err) 1288 goto err_set_features; 1289 1290 /* enable pause and disable pfc by default */ 1291 err = hinic_dcb_set_pfc(nic_dev->hwdev, 0, 0); 1292 if (err) 1293 goto err_set_pfc; 1294 1295 SET_NETDEV_DEV(netdev, &pdev->dev); 1296 1297 err = hinic_init_intr_coalesce(nic_dev); 1298 if (err) { 1299 dev_err(&pdev->dev, "Failed to init_intr_coalesce\n"); 1300 goto err_init_intr; 1301 } 1302 1303 hinic_dbg_init(nic_dev); 1304 1305 hinic_func_tbl_dbgfs_init(nic_dev); 1306 1307 err = hinic_func_table_debug_add(nic_dev); 1308 if (err) { 1309 dev_err(&pdev->dev, "Failed to add func_table debug\n"); 1310 goto err_add_func_table_dbg; 1311 } 1312 1313 err = register_netdev(netdev); 1314 if (err) { 1315 dev_err(&pdev->dev, "Failed to register netdev\n"); 1316 goto err_reg_netdev; 1317 } 1318 1319 return 0; 1320 1321 err_reg_netdev: 1322 hinic_func_table_debug_rem(nic_dev); 1323 err_add_func_table_dbg: 1324 hinic_func_tbl_dbgfs_uninit(nic_dev); 1325 hinic_dbg_uninit(nic_dev); 1326 hinic_free_intr_coalesce(nic_dev); 1327 err_init_intr: 1328 err_set_pfc: 1329 err_set_features: 1330 hinic_hwdev_cb_unregister(nic_dev->hwdev, 1331 HINIC_MGMT_MSG_CMD_LINK_ERR_EVENT); 1332 hinic_hwdev_cb_unregister(nic_dev->hwdev, 1333 HINIC_MGMT_MSG_CMD_CABLE_PLUG_EVENT); 1334 hinic_hwdev_cb_unregister(nic_dev->hwdev, 1335 HINIC_MGMT_MSG_CMD_LINK_STATUS); 1336 cancel_work_sync(&rx_mode_work->work); 1337 1338 err_set_mtu: 1339 hinic_port_del_mac(nic_dev, netdev->dev_addr, 0); 1340 err_add_mac: 1341 err_get_mac: 1342 pci_set_drvdata(pdev, NULL); 1343 destroy_workqueue(nic_dev->workq); 1344 err_workq: 1345 err_vlan_bitmap: 1346 free_netdev(netdev); 1347 1348 err_alloc_etherdev: 1349 err_num_qps: 1350 hinic_free_hwdev(hwdev); 1351 hinic_devlink_free(devlink); 1352 return err; 1353 } 1354 1355 static int hinic_probe(struct pci_dev *pdev, 1356 const struct pci_device_id *id) 1357 { 1358 int err = pci_enable_device(pdev); 1359 1360 if (err) { 1361 dev_err(&pdev->dev, "Failed to enable PCI device\n"); 1362 return err; 1363 } 1364 1365 err = pci_request_regions(pdev, HINIC_DRV_NAME); 1366 if (err) { 1367 dev_err(&pdev->dev, "Failed to request PCI regions\n"); 1368 goto err_pci_regions; 1369 } 1370 1371 pci_set_master(pdev); 1372 1373 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); 1374 if (err) { 1375 dev_warn(&pdev->dev, "Couldn't set 64-bit DMA mask\n"); 1376 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 1377 if (err) { 1378 dev_err(&pdev->dev, "Failed to set DMA mask\n"); 1379 goto err_dma_mask; 1380 } 1381 } 1382 1383 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); 1384 if (err) { 1385 dev_warn(&pdev->dev, 1386 "Couldn't set 64-bit consistent DMA mask\n"); 1387 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); 1388 if (err) { 1389 dev_err(&pdev->dev, 1390 "Failed to set consistent DMA mask\n"); 1391 goto err_dma_consistent_mask; 1392 } 1393 } 1394 1395 err = nic_dev_init(pdev); 1396 if (err) { 1397 dev_err(&pdev->dev, "Failed to initialize NIC device\n"); 1398 goto err_nic_dev_init; 1399 } 1400 1401 dev_info(&pdev->dev, "HiNIC driver - probed\n"); 1402 return 0; 1403 1404 err_nic_dev_init: 1405 err_dma_consistent_mask: 1406 err_dma_mask: 1407 pci_release_regions(pdev); 1408 1409 err_pci_regions: 1410 pci_disable_device(pdev); 1411 return err; 1412 } 1413 1414 #define HINIC_WAIT_SRIOV_CFG_TIMEOUT 15000 1415 1416 static void wait_sriov_cfg_complete(struct hinic_dev *nic_dev) 1417 { 1418 struct hinic_sriov_info *sriov_info = &nic_dev->sriov_info; 1419 u32 loop_cnt = 0; 1420 1421 set_bit(HINIC_FUNC_REMOVE, &sriov_info->state); 1422 usleep_range(9900, 10000); 1423 1424 while (loop_cnt < HINIC_WAIT_SRIOV_CFG_TIMEOUT) { 1425 if (!test_bit(HINIC_SRIOV_ENABLE, &sriov_info->state) && 1426 !test_bit(HINIC_SRIOV_DISABLE, &sriov_info->state)) 1427 return; 1428 1429 usleep_range(9900, 10000); 1430 loop_cnt++; 1431 } 1432 } 1433 1434 static void hinic_remove(struct pci_dev *pdev) 1435 { 1436 struct net_device *netdev = pci_get_drvdata(pdev); 1437 struct hinic_dev *nic_dev = netdev_priv(netdev); 1438 struct devlink *devlink = nic_dev->devlink; 1439 struct hinic_rx_mode_work *rx_mode_work; 1440 1441 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) { 1442 wait_sriov_cfg_complete(nic_dev); 1443 hinic_pci_sriov_disable(pdev); 1444 } 1445 1446 unregister_netdev(netdev); 1447 1448 hinic_func_table_debug_rem(nic_dev); 1449 1450 hinic_func_tbl_dbgfs_uninit(nic_dev); 1451 1452 hinic_dbg_uninit(nic_dev); 1453 1454 hinic_free_intr_coalesce(nic_dev); 1455 1456 hinic_port_del_mac(nic_dev, netdev->dev_addr, 0); 1457 1458 hinic_hwdev_cb_unregister(nic_dev->hwdev, 1459 HINIC_MGMT_MSG_CMD_LINK_ERR_EVENT); 1460 hinic_hwdev_cb_unregister(nic_dev->hwdev, 1461 HINIC_MGMT_MSG_CMD_CABLE_PLUG_EVENT); 1462 hinic_hwdev_cb_unregister(nic_dev->hwdev, 1463 HINIC_MGMT_MSG_CMD_LINK_STATUS); 1464 1465 rx_mode_work = &nic_dev->rx_mode_work; 1466 cancel_work_sync(&rx_mode_work->work); 1467 1468 pci_set_drvdata(pdev, NULL); 1469 1470 destroy_workqueue(nic_dev->workq); 1471 1472 hinic_free_hwdev(nic_dev->hwdev); 1473 1474 free_netdev(netdev); 1475 1476 hinic_devlink_free(devlink); 1477 1478 pci_release_regions(pdev); 1479 pci_disable_device(pdev); 1480 1481 dev_info(&pdev->dev, "HiNIC driver - removed\n"); 1482 } 1483 1484 static void hinic_shutdown(struct pci_dev *pdev) 1485 { 1486 pci_disable_device(pdev); 1487 } 1488 1489 static const struct pci_device_id hinic_pci_table[] = { 1490 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_QUAD_PORT_25GE), 0}, 1491 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_100GE), 0}, 1492 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_100GE_MEZZ), 0}, 1493 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_QUAD_PORT_25GE_MEZZ), 0}, 1494 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_VF), 0}, 1495 { 0, 0} 1496 }; 1497 MODULE_DEVICE_TABLE(pci, hinic_pci_table); 1498 1499 static struct pci_driver hinic_driver = { 1500 .name = HINIC_DRV_NAME, 1501 .id_table = hinic_pci_table, 1502 .probe = hinic_probe, 1503 .remove = hinic_remove, 1504 .shutdown = hinic_shutdown, 1505 .sriov_configure = hinic_pci_sriov_configure, 1506 }; 1507 1508 static int __init hinic_module_init(void) 1509 { 1510 hinic_dbg_register_debugfs(HINIC_DRV_NAME); 1511 return pci_register_driver(&hinic_driver); 1512 } 1513 1514 static void __exit hinic_module_exit(void) 1515 { 1516 pci_unregister_driver(&hinic_driver); 1517 hinic_dbg_unregister_debugfs(); 1518 } 1519 1520 module_init(hinic_module_init); 1521 module_exit(hinic_module_exit); 1522