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