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