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 static void enable_txqs_napi(struct hinic_dev *nic_dev) 195 { 196 int num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev); 197 int i; 198 199 for (i = 0; i < num_txqs; i++) 200 napi_enable(&nic_dev->txqs[i].napi); 201 } 202 203 static void disable_txqs_napi(struct hinic_dev *nic_dev) 204 { 205 int num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev); 206 int i; 207 208 for (i = 0; i < num_txqs; i++) 209 napi_disable(&nic_dev->txqs[i].napi); 210 } 211 212 /** 213 * free_txqs - Free the Logical Tx Queues of specific NIC device 214 * @nic_dev: the specific NIC device 215 **/ 216 static void free_txqs(struct hinic_dev *nic_dev) 217 { 218 int i, num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev); 219 struct net_device *netdev = nic_dev->netdev; 220 221 if (!nic_dev->txqs) 222 return; 223 224 for (i = 0; i < num_txqs; i++) { 225 hinic_sq_debug_rem(nic_dev->txqs[i].sq); 226 hinic_clean_txq(&nic_dev->txqs[i]); 227 } 228 229 hinic_sq_dbgfs_uninit(nic_dev); 230 231 devm_kfree(&netdev->dev, nic_dev->txqs); 232 nic_dev->txqs = NULL; 233 } 234 235 /** 236 * create_txqs - Create the Logical Rx Queues of specific NIC device 237 * @nic_dev: the specific NIC device 238 * 239 * Return 0 - Success, negative - Failure 240 **/ 241 static int create_rxqs(struct hinic_dev *nic_dev) 242 { 243 int err, i, j, num_rxqs = hinic_hwdev_num_qps(nic_dev->hwdev); 244 struct net_device *netdev = nic_dev->netdev; 245 size_t rxq_size; 246 247 if (nic_dev->rxqs) 248 return -EINVAL; 249 250 rxq_size = num_rxqs * sizeof(*nic_dev->rxqs); 251 nic_dev->rxqs = devm_kzalloc(&netdev->dev, rxq_size, GFP_KERNEL); 252 if (!nic_dev->rxqs) 253 return -ENOMEM; 254 255 hinic_rq_dbgfs_init(nic_dev); 256 257 for (i = 0; i < num_rxqs; i++) { 258 struct hinic_rq *rq = hinic_hwdev_get_rq(nic_dev->hwdev, i); 259 260 err = hinic_init_rxq(&nic_dev->rxqs[i], rq, netdev); 261 if (err) { 262 netif_err(nic_dev, drv, netdev, 263 "Failed to init rxq\n"); 264 goto err_init_rxq; 265 } 266 267 err = hinic_rq_debug_add(nic_dev, i); 268 if (err) { 269 netif_err(nic_dev, drv, netdev, 270 "Failed to add RQ%d debug\n", i); 271 goto err_add_rq_dbg; 272 } 273 } 274 275 return 0; 276 277 err_add_rq_dbg: 278 hinic_clean_rxq(&nic_dev->rxqs[i]); 279 err_init_rxq: 280 for (j = 0; j < i; j++) { 281 hinic_rq_debug_rem(nic_dev->rxqs[j].rq); 282 hinic_clean_rxq(&nic_dev->rxqs[j]); 283 } 284 285 hinic_rq_dbgfs_uninit(nic_dev); 286 287 devm_kfree(&netdev->dev, nic_dev->rxqs); 288 return err; 289 } 290 291 /** 292 * free_txqs - Free the Logical Rx Queues of specific NIC device 293 * @nic_dev: the specific NIC device 294 **/ 295 static void free_rxqs(struct hinic_dev *nic_dev) 296 { 297 int i, num_rxqs = hinic_hwdev_num_qps(nic_dev->hwdev); 298 struct net_device *netdev = nic_dev->netdev; 299 300 if (!nic_dev->rxqs) 301 return; 302 303 for (i = 0; i < num_rxqs; i++) { 304 hinic_rq_debug_rem(nic_dev->rxqs[i].rq); 305 hinic_clean_rxq(&nic_dev->rxqs[i]); 306 } 307 308 hinic_rq_dbgfs_uninit(nic_dev); 309 310 devm_kfree(&netdev->dev, nic_dev->rxqs); 311 nic_dev->rxqs = NULL; 312 } 313 314 static int hinic_configure_max_qnum(struct hinic_dev *nic_dev) 315 { 316 int err; 317 318 err = hinic_set_max_qnum(nic_dev, nic_dev->hwdev->nic_cap.max_qps); 319 if (err) 320 return err; 321 322 return 0; 323 } 324 325 static int hinic_rss_init(struct hinic_dev *nic_dev) 326 { 327 u8 default_rss_key[HINIC_RSS_KEY_SIZE]; 328 u8 tmpl_idx = nic_dev->rss_tmpl_idx; 329 u32 *indir_tbl; 330 int err, i; 331 332 indir_tbl = kcalloc(HINIC_RSS_INDIR_SIZE, sizeof(u32), GFP_KERNEL); 333 if (!indir_tbl) 334 return -ENOMEM; 335 336 netdev_rss_key_fill(default_rss_key, sizeof(default_rss_key)); 337 for (i = 0; i < HINIC_RSS_INDIR_SIZE; i++) 338 indir_tbl[i] = ethtool_rxfh_indir_default(i, nic_dev->num_rss); 339 340 err = hinic_rss_set_template_tbl(nic_dev, tmpl_idx, default_rss_key); 341 if (err) 342 goto out; 343 344 err = hinic_rss_set_indir_tbl(nic_dev, tmpl_idx, indir_tbl); 345 if (err) 346 goto out; 347 348 err = hinic_set_rss_type(nic_dev, tmpl_idx, nic_dev->rss_type); 349 if (err) 350 goto out; 351 352 err = hinic_rss_set_hash_engine(nic_dev, tmpl_idx, 353 nic_dev->rss_hash_engine); 354 if (err) 355 goto out; 356 357 err = hinic_rss_cfg(nic_dev, 1, tmpl_idx); 358 if (err) 359 goto out; 360 361 out: 362 kfree(indir_tbl); 363 return err; 364 } 365 366 static void hinic_rss_deinit(struct hinic_dev *nic_dev) 367 { 368 hinic_rss_cfg(nic_dev, 0, nic_dev->rss_tmpl_idx); 369 } 370 371 static void hinic_init_rss_parameters(struct hinic_dev *nic_dev) 372 { 373 nic_dev->rss_hash_engine = HINIC_RSS_HASH_ENGINE_TYPE_XOR; 374 nic_dev->rss_type.tcp_ipv6_ext = 1; 375 nic_dev->rss_type.ipv6_ext = 1; 376 nic_dev->rss_type.tcp_ipv6 = 1; 377 nic_dev->rss_type.ipv6 = 1; 378 nic_dev->rss_type.tcp_ipv4 = 1; 379 nic_dev->rss_type.ipv4 = 1; 380 nic_dev->rss_type.udp_ipv6 = 1; 381 nic_dev->rss_type.udp_ipv4 = 1; 382 } 383 384 static void hinic_enable_rss(struct hinic_dev *nic_dev) 385 { 386 struct net_device *netdev = nic_dev->netdev; 387 struct hinic_hwdev *hwdev = nic_dev->hwdev; 388 struct hinic_hwif *hwif = hwdev->hwif; 389 struct pci_dev *pdev = hwif->pdev; 390 int i, node, err = 0; 391 u16 num_cpus = 0; 392 393 if (nic_dev->max_qps <= 1) { 394 nic_dev->flags &= ~HINIC_RSS_ENABLE; 395 nic_dev->rss_limit = nic_dev->max_qps; 396 nic_dev->num_qps = nic_dev->max_qps; 397 nic_dev->num_rss = nic_dev->max_qps; 398 399 return; 400 } 401 402 err = hinic_rss_template_alloc(nic_dev, &nic_dev->rss_tmpl_idx); 403 if (err) { 404 netif_err(nic_dev, drv, netdev, 405 "Failed to alloc tmpl_idx for rss, can't enable rss for this function\n"); 406 nic_dev->flags &= ~HINIC_RSS_ENABLE; 407 nic_dev->max_qps = 1; 408 nic_dev->rss_limit = nic_dev->max_qps; 409 nic_dev->num_qps = nic_dev->max_qps; 410 nic_dev->num_rss = nic_dev->max_qps; 411 412 return; 413 } 414 415 nic_dev->flags |= HINIC_RSS_ENABLE; 416 417 for (i = 0; i < num_online_cpus(); i++) { 418 node = cpu_to_node(i); 419 if (node == dev_to_node(&pdev->dev)) 420 num_cpus++; 421 } 422 423 if (!num_cpus) 424 num_cpus = num_online_cpus(); 425 426 nic_dev->num_qps = hinic_hwdev_num_qps(hwdev); 427 nic_dev->num_qps = min_t(u16, nic_dev->num_qps, num_cpus); 428 429 nic_dev->rss_limit = nic_dev->num_qps; 430 nic_dev->num_rss = nic_dev->num_qps; 431 432 hinic_init_rss_parameters(nic_dev); 433 err = hinic_rss_init(nic_dev); 434 if (err) 435 netif_err(nic_dev, drv, netdev, "Failed to init rss\n"); 436 } 437 438 int hinic_open(struct net_device *netdev) 439 { 440 struct hinic_dev *nic_dev = netdev_priv(netdev); 441 enum hinic_port_link_state link_state; 442 int err, ret; 443 444 if (!(nic_dev->flags & HINIC_INTF_UP)) { 445 err = hinic_hwdev_ifup(nic_dev->hwdev, nic_dev->sq_depth, 446 nic_dev->rq_depth); 447 if (err) { 448 netif_err(nic_dev, drv, netdev, 449 "Failed - HW interface up\n"); 450 return err; 451 } 452 } 453 454 err = create_txqs(nic_dev); 455 if (err) { 456 netif_err(nic_dev, drv, netdev, 457 "Failed to create Tx queues\n"); 458 goto err_create_txqs; 459 } 460 461 enable_txqs_napi(nic_dev); 462 463 err = create_rxqs(nic_dev); 464 if (err) { 465 netif_err(nic_dev, drv, netdev, 466 "Failed to create Rx queues\n"); 467 goto err_create_rxqs; 468 } 469 470 hinic_enable_rss(nic_dev); 471 472 err = hinic_configure_max_qnum(nic_dev); 473 if (err) { 474 netif_err(nic_dev, drv, nic_dev->netdev, 475 "Failed to configure the maximum number of queues\n"); 476 goto err_port_state; 477 } 478 479 netif_set_real_num_tx_queues(netdev, nic_dev->num_qps); 480 netif_set_real_num_rx_queues(netdev, nic_dev->num_qps); 481 482 err = hinic_port_set_state(nic_dev, HINIC_PORT_ENABLE); 483 if (err) { 484 netif_err(nic_dev, drv, netdev, 485 "Failed to set port state\n"); 486 goto err_port_state; 487 } 488 489 err = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_ENABLE); 490 if (err) { 491 netif_err(nic_dev, drv, netdev, 492 "Failed to set func port state\n"); 493 goto err_func_port_state; 494 } 495 496 down(&nic_dev->mgmt_lock); 497 498 err = hinic_port_link_state(nic_dev, &link_state); 499 if (err) { 500 netif_err(nic_dev, drv, netdev, "Failed to get link state\n"); 501 goto err_port_link; 502 } 503 504 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) 505 hinic_notify_all_vfs_link_changed(nic_dev->hwdev, link_state); 506 507 if (link_state == HINIC_LINK_STATE_UP) { 508 nic_dev->flags |= HINIC_LINK_UP; 509 nic_dev->cable_unplugged = false; 510 nic_dev->module_unrecognized = false; 511 } 512 513 nic_dev->flags |= HINIC_INTF_UP; 514 515 if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) == 516 (HINIC_LINK_UP | HINIC_INTF_UP)) { 517 netif_info(nic_dev, drv, netdev, "link + intf UP\n"); 518 netif_carrier_on(netdev); 519 netif_tx_wake_all_queues(netdev); 520 } 521 522 up(&nic_dev->mgmt_lock); 523 524 netif_info(nic_dev, drv, netdev, "HINIC_INTF is UP\n"); 525 return 0; 526 527 err_port_link: 528 up(&nic_dev->mgmt_lock); 529 ret = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE); 530 if (ret) 531 netif_warn(nic_dev, drv, netdev, 532 "Failed to revert func port state\n"); 533 534 err_func_port_state: 535 ret = hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE); 536 if (ret) 537 netif_warn(nic_dev, drv, netdev, 538 "Failed to revert port state\n"); 539 err_port_state: 540 free_rxqs(nic_dev); 541 if (nic_dev->flags & HINIC_RSS_ENABLE) { 542 hinic_rss_deinit(nic_dev); 543 hinic_rss_template_free(nic_dev, nic_dev->rss_tmpl_idx); 544 } 545 546 err_create_rxqs: 547 disable_txqs_napi(nic_dev); 548 free_txqs(nic_dev); 549 550 err_create_txqs: 551 if (!(nic_dev->flags & HINIC_INTF_UP)) 552 hinic_hwdev_ifdown(nic_dev->hwdev); 553 return err; 554 } 555 556 int hinic_close(struct net_device *netdev) 557 { 558 struct hinic_dev *nic_dev = netdev_priv(netdev); 559 unsigned int flags; 560 561 /* Disable txq napi firstly to aviod rewaking txq in free_tx_poll */ 562 disable_txqs_napi(nic_dev); 563 564 down(&nic_dev->mgmt_lock); 565 566 flags = nic_dev->flags; 567 nic_dev->flags &= ~HINIC_INTF_UP; 568 569 netif_carrier_off(netdev); 570 netif_tx_disable(netdev); 571 572 update_nic_stats(nic_dev); 573 574 up(&nic_dev->mgmt_lock); 575 576 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) 577 hinic_notify_all_vfs_link_changed(nic_dev->hwdev, 0); 578 579 hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE); 580 581 hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE); 582 583 if (nic_dev->flags & HINIC_RSS_ENABLE) { 584 hinic_rss_deinit(nic_dev); 585 hinic_rss_template_free(nic_dev, nic_dev->rss_tmpl_idx); 586 } 587 588 free_rxqs(nic_dev); 589 free_txqs(nic_dev); 590 591 if (flags & HINIC_INTF_UP) 592 hinic_hwdev_ifdown(nic_dev->hwdev); 593 594 netif_info(nic_dev, drv, netdev, "HINIC_INTF is DOWN\n"); 595 return 0; 596 } 597 598 static int hinic_change_mtu(struct net_device *netdev, int new_mtu) 599 { 600 struct hinic_dev *nic_dev = netdev_priv(netdev); 601 int err; 602 603 netif_info(nic_dev, drv, netdev, "set_mtu = %d\n", new_mtu); 604 605 err = hinic_port_set_mtu(nic_dev, new_mtu); 606 if (err) 607 netif_err(nic_dev, drv, netdev, "Failed to set port mtu\n"); 608 else 609 netdev->mtu = new_mtu; 610 611 return err; 612 } 613 614 /** 615 * change_mac_addr - change the main mac address of network device 616 * @netdev: network device 617 * @addr: mac address to set 618 * 619 * Return 0 - Success, negative - Failure 620 **/ 621 static int change_mac_addr(struct net_device *netdev, const u8 *addr) 622 { 623 struct hinic_dev *nic_dev = netdev_priv(netdev); 624 u16 vid = 0; 625 int err; 626 627 if (!is_valid_ether_addr(addr)) 628 return -EADDRNOTAVAIL; 629 630 netif_info(nic_dev, drv, netdev, "change mac addr = %02x %02x %02x %02x %02x %02x\n", 631 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 632 633 down(&nic_dev->mgmt_lock); 634 635 do { 636 err = hinic_port_del_mac(nic_dev, netdev->dev_addr, vid); 637 if (err) { 638 netif_err(nic_dev, drv, netdev, 639 "Failed to delete mac\n"); 640 break; 641 } 642 643 err = hinic_port_add_mac(nic_dev, addr, vid); 644 if (err) { 645 netif_err(nic_dev, drv, netdev, "Failed to add mac\n"); 646 break; 647 } 648 649 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1); 650 } while (vid != VLAN_N_VID); 651 652 up(&nic_dev->mgmt_lock); 653 return err; 654 } 655 656 static int hinic_set_mac_addr(struct net_device *netdev, void *addr) 657 { 658 unsigned char new_mac[ETH_ALEN]; 659 struct sockaddr *saddr = addr; 660 int err; 661 662 memcpy(new_mac, saddr->sa_data, ETH_ALEN); 663 664 err = change_mac_addr(netdev, new_mac); 665 if (!err) 666 memcpy(netdev->dev_addr, new_mac, ETH_ALEN); 667 668 return err; 669 } 670 671 /** 672 * add_mac_addr - add mac address to network device 673 * @netdev: network device 674 * @addr: mac address to add 675 * 676 * Return 0 - Success, negative - Failure 677 **/ 678 static int add_mac_addr(struct net_device *netdev, const u8 *addr) 679 { 680 struct hinic_dev *nic_dev = netdev_priv(netdev); 681 u16 vid = 0; 682 int err; 683 684 netif_info(nic_dev, drv, netdev, "set mac addr = %02x %02x %02x %02x %02x %02x\n", 685 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 686 687 down(&nic_dev->mgmt_lock); 688 689 do { 690 err = hinic_port_add_mac(nic_dev, addr, vid); 691 if (err) { 692 netif_err(nic_dev, drv, netdev, "Failed to add mac\n"); 693 break; 694 } 695 696 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1); 697 } while (vid != VLAN_N_VID); 698 699 up(&nic_dev->mgmt_lock); 700 return err; 701 } 702 703 /** 704 * remove_mac_addr - remove mac address from network device 705 * @netdev: network device 706 * @addr: mac address to remove 707 * 708 * Return 0 - Success, negative - Failure 709 **/ 710 static int remove_mac_addr(struct net_device *netdev, const u8 *addr) 711 { 712 struct hinic_dev *nic_dev = netdev_priv(netdev); 713 u16 vid = 0; 714 int err; 715 716 if (!is_valid_ether_addr(addr)) 717 return -EADDRNOTAVAIL; 718 719 netif_info(nic_dev, drv, netdev, "remove mac addr = %02x %02x %02x %02x %02x %02x\n", 720 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 721 722 down(&nic_dev->mgmt_lock); 723 724 do { 725 err = hinic_port_del_mac(nic_dev, addr, vid); 726 if (err) { 727 netif_err(nic_dev, drv, netdev, 728 "Failed to delete mac\n"); 729 break; 730 } 731 732 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1); 733 } while (vid != VLAN_N_VID); 734 735 up(&nic_dev->mgmt_lock); 736 return err; 737 } 738 739 static int hinic_vlan_rx_add_vid(struct net_device *netdev, 740 __always_unused __be16 proto, u16 vid) 741 { 742 struct hinic_dev *nic_dev = netdev_priv(netdev); 743 int ret, err; 744 745 netif_info(nic_dev, drv, netdev, "add vid = %d\n", vid); 746 747 down(&nic_dev->mgmt_lock); 748 749 err = hinic_port_add_vlan(nic_dev, vid); 750 if (err) { 751 netif_err(nic_dev, drv, netdev, "Failed to add vlan\n"); 752 goto err_vlan_add; 753 } 754 755 err = hinic_port_add_mac(nic_dev, netdev->dev_addr, vid); 756 if (err && err != HINIC_PF_SET_VF_ALREADY) { 757 netif_err(nic_dev, drv, netdev, "Failed to set mac\n"); 758 goto err_add_mac; 759 } 760 761 bitmap_set(nic_dev->vlan_bitmap, vid, 1); 762 763 up(&nic_dev->mgmt_lock); 764 return 0; 765 766 err_add_mac: 767 ret = hinic_port_del_vlan(nic_dev, vid); 768 if (ret) 769 netif_err(nic_dev, drv, netdev, 770 "Failed to revert by removing vlan\n"); 771 772 err_vlan_add: 773 up(&nic_dev->mgmt_lock); 774 return err; 775 } 776 777 static int hinic_vlan_rx_kill_vid(struct net_device *netdev, 778 __always_unused __be16 proto, u16 vid) 779 { 780 struct hinic_dev *nic_dev = netdev_priv(netdev); 781 int err; 782 783 netif_info(nic_dev, drv, netdev, "remove vid = %d\n", vid); 784 785 down(&nic_dev->mgmt_lock); 786 787 err = hinic_port_del_vlan(nic_dev, vid); 788 if (err) { 789 netif_err(nic_dev, drv, netdev, "Failed to delete vlan\n"); 790 goto err_del_vlan; 791 } 792 793 bitmap_clear(nic_dev->vlan_bitmap, vid, 1); 794 795 up(&nic_dev->mgmt_lock); 796 return 0; 797 798 err_del_vlan: 799 up(&nic_dev->mgmt_lock); 800 return err; 801 } 802 803 static void set_rx_mode(struct work_struct *work) 804 { 805 struct hinic_rx_mode_work *rx_mode_work = work_to_rx_mode_work(work); 806 struct hinic_dev *nic_dev = rx_mode_work_to_nic_dev(rx_mode_work); 807 808 hinic_port_set_rx_mode(nic_dev, rx_mode_work->rx_mode); 809 810 __dev_uc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr); 811 __dev_mc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr); 812 } 813 814 static void hinic_set_rx_mode(struct net_device *netdev) 815 { 816 struct hinic_dev *nic_dev = netdev_priv(netdev); 817 struct hinic_rx_mode_work *rx_mode_work; 818 u32 rx_mode; 819 820 rx_mode_work = &nic_dev->rx_mode_work; 821 822 rx_mode = HINIC_RX_MODE_UC | 823 HINIC_RX_MODE_MC | 824 HINIC_RX_MODE_BC; 825 826 if (netdev->flags & IFF_PROMISC) { 827 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) 828 rx_mode |= HINIC_RX_MODE_PROMISC; 829 } else if (netdev->flags & IFF_ALLMULTI) { 830 rx_mode |= HINIC_RX_MODE_MC_ALL; 831 } 832 833 rx_mode_work->rx_mode = rx_mode; 834 835 queue_work(nic_dev->workq, &rx_mode_work->work); 836 } 837 838 static void hinic_tx_timeout(struct net_device *netdev, unsigned int txqueue) 839 { 840 struct hinic_dev *nic_dev = netdev_priv(netdev); 841 u16 sw_pi, hw_ci, sw_ci; 842 struct hinic_sq *sq; 843 u16 num_sqs, q_id; 844 845 num_sqs = hinic_hwdev_num_qps(nic_dev->hwdev); 846 847 netif_err(nic_dev, drv, netdev, "Tx timeout\n"); 848 849 for (q_id = 0; q_id < num_sqs; q_id++) { 850 if (!netif_xmit_stopped(netdev_get_tx_queue(netdev, q_id))) 851 continue; 852 853 sq = hinic_hwdev_get_sq(nic_dev->hwdev, q_id); 854 sw_pi = atomic_read(&sq->wq->prod_idx) & sq->wq->mask; 855 hw_ci = be16_to_cpu(*(u16 *)(sq->hw_ci_addr)) & sq->wq->mask; 856 sw_ci = atomic_read(&sq->wq->cons_idx) & sq->wq->mask; 857 netif_err(nic_dev, drv, netdev, "Txq%d: sw_pi: %d, hw_ci: %d, sw_ci: %d, napi->state: 0x%lx\n", 858 q_id, sw_pi, hw_ci, sw_ci, 859 nic_dev->txqs[q_id].napi.state); 860 } 861 } 862 863 static void hinic_get_stats64(struct net_device *netdev, 864 struct rtnl_link_stats64 *stats) 865 { 866 struct hinic_dev *nic_dev = netdev_priv(netdev); 867 struct hinic_rxq_stats *nic_rx_stats; 868 struct hinic_txq_stats *nic_tx_stats; 869 870 nic_rx_stats = &nic_dev->rx_stats; 871 nic_tx_stats = &nic_dev->tx_stats; 872 873 down(&nic_dev->mgmt_lock); 874 875 if (nic_dev->flags & HINIC_INTF_UP) 876 update_nic_stats(nic_dev); 877 878 up(&nic_dev->mgmt_lock); 879 880 stats->rx_bytes = nic_rx_stats->bytes; 881 stats->rx_packets = nic_rx_stats->pkts; 882 stats->rx_errors = nic_rx_stats->errors; 883 884 stats->tx_bytes = nic_tx_stats->bytes; 885 stats->tx_packets = nic_tx_stats->pkts; 886 stats->tx_errors = nic_tx_stats->tx_dropped; 887 } 888 889 static int hinic_set_features(struct net_device *netdev, 890 netdev_features_t features) 891 { 892 struct hinic_dev *nic_dev = netdev_priv(netdev); 893 894 return set_features(nic_dev, nic_dev->netdev->features, 895 features, false); 896 } 897 898 static netdev_features_t hinic_fix_features(struct net_device *netdev, 899 netdev_features_t features) 900 { 901 struct hinic_dev *nic_dev = netdev_priv(netdev); 902 903 /* If Rx checksum is disabled, then LRO should also be disabled */ 904 if (!(features & NETIF_F_RXCSUM)) { 905 netif_info(nic_dev, drv, netdev, "disabling LRO as RXCSUM is off\n"); 906 features &= ~NETIF_F_LRO; 907 } 908 909 return features; 910 } 911 912 static const struct net_device_ops hinic_netdev_ops = { 913 .ndo_open = hinic_open, 914 .ndo_stop = hinic_close, 915 .ndo_change_mtu = hinic_change_mtu, 916 .ndo_set_mac_address = hinic_set_mac_addr, 917 .ndo_validate_addr = eth_validate_addr, 918 .ndo_vlan_rx_add_vid = hinic_vlan_rx_add_vid, 919 .ndo_vlan_rx_kill_vid = hinic_vlan_rx_kill_vid, 920 .ndo_set_rx_mode = hinic_set_rx_mode, 921 .ndo_start_xmit = hinic_xmit_frame, 922 .ndo_tx_timeout = hinic_tx_timeout, 923 .ndo_get_stats64 = hinic_get_stats64, 924 .ndo_fix_features = hinic_fix_features, 925 .ndo_set_features = hinic_set_features, 926 .ndo_set_vf_mac = hinic_ndo_set_vf_mac, 927 .ndo_set_vf_vlan = hinic_ndo_set_vf_vlan, 928 .ndo_get_vf_config = hinic_ndo_get_vf_config, 929 .ndo_set_vf_trust = hinic_ndo_set_vf_trust, 930 .ndo_set_vf_rate = hinic_ndo_set_vf_bw, 931 .ndo_set_vf_spoofchk = hinic_ndo_set_vf_spoofchk, 932 .ndo_set_vf_link_state = hinic_ndo_set_vf_link_state, 933 }; 934 935 static const struct net_device_ops hinicvf_netdev_ops = { 936 .ndo_open = hinic_open, 937 .ndo_stop = hinic_close, 938 .ndo_change_mtu = hinic_change_mtu, 939 .ndo_set_mac_address = hinic_set_mac_addr, 940 .ndo_validate_addr = eth_validate_addr, 941 .ndo_vlan_rx_add_vid = hinic_vlan_rx_add_vid, 942 .ndo_vlan_rx_kill_vid = hinic_vlan_rx_kill_vid, 943 .ndo_set_rx_mode = hinic_set_rx_mode, 944 .ndo_start_xmit = hinic_xmit_frame, 945 .ndo_tx_timeout = hinic_tx_timeout, 946 .ndo_get_stats64 = hinic_get_stats64, 947 .ndo_fix_features = hinic_fix_features, 948 .ndo_set_features = hinic_set_features, 949 }; 950 951 static void netdev_features_init(struct net_device *netdev) 952 { 953 netdev->hw_features = NETIF_F_SG | NETIF_F_HIGHDMA | NETIF_F_IP_CSUM | 954 NETIF_F_IPV6_CSUM | NETIF_F_TSO | NETIF_F_TSO6 | 955 NETIF_F_RXCSUM | NETIF_F_LRO | 956 NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX | 957 NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_UDP_TUNNEL_CSUM; 958 959 netdev->vlan_features = netdev->hw_features; 960 961 netdev->features = netdev->hw_features | NETIF_F_HW_VLAN_CTAG_FILTER; 962 963 netdev->hw_enc_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SCTP_CRC | 964 NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_TSO_ECN | 965 NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_GSO_UDP_TUNNEL; 966 } 967 968 static void hinic_refresh_nic_cfg(struct hinic_dev *nic_dev) 969 { 970 struct hinic_nic_cfg *nic_cfg = &nic_dev->hwdev->func_to_io.nic_cfg; 971 struct hinic_pause_config pause_info = {0}; 972 struct hinic_port_cap port_cap = {0}; 973 974 if (hinic_port_get_cap(nic_dev, &port_cap)) 975 return; 976 977 mutex_lock(&nic_cfg->cfg_mutex); 978 if (nic_cfg->pause_set || !port_cap.autoneg_state) { 979 nic_cfg->auto_neg = port_cap.autoneg_state; 980 pause_info.auto_neg = nic_cfg->auto_neg; 981 pause_info.rx_pause = nic_cfg->rx_pause; 982 pause_info.tx_pause = nic_cfg->tx_pause; 983 hinic_set_hw_pause_info(nic_dev->hwdev, &pause_info); 984 } 985 mutex_unlock(&nic_cfg->cfg_mutex); 986 } 987 988 /** 989 * link_status_event_handler - link event handler 990 * @handle: nic device for the handler 991 * @buf_in: input buffer 992 * @in_size: input size 993 * @buf_out: output buffer 994 * @out_size: returned output size 995 * 996 * Return 0 - Success, negative - Failure 997 **/ 998 static void link_status_event_handler(void *handle, void *buf_in, u16 in_size, 999 void *buf_out, u16 *out_size) 1000 { 1001 struct hinic_port_link_status *link_status, *ret_link_status; 1002 struct hinic_dev *nic_dev = handle; 1003 1004 link_status = buf_in; 1005 1006 if (link_status->link == HINIC_LINK_STATE_UP) { 1007 down(&nic_dev->mgmt_lock); 1008 1009 nic_dev->flags |= HINIC_LINK_UP; 1010 nic_dev->cable_unplugged = false; 1011 nic_dev->module_unrecognized = false; 1012 1013 if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) == 1014 (HINIC_LINK_UP | HINIC_INTF_UP)) { 1015 netif_carrier_on(nic_dev->netdev); 1016 netif_tx_wake_all_queues(nic_dev->netdev); 1017 } 1018 1019 up(&nic_dev->mgmt_lock); 1020 1021 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) 1022 hinic_refresh_nic_cfg(nic_dev); 1023 1024 netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is UP\n"); 1025 } else { 1026 down(&nic_dev->mgmt_lock); 1027 1028 nic_dev->flags &= ~HINIC_LINK_UP; 1029 1030 netif_carrier_off(nic_dev->netdev); 1031 netif_tx_disable(nic_dev->netdev); 1032 1033 up(&nic_dev->mgmt_lock); 1034 1035 netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is DOWN\n"); 1036 } 1037 1038 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) 1039 hinic_notify_all_vfs_link_changed(nic_dev->hwdev, 1040 link_status->link); 1041 1042 ret_link_status = buf_out; 1043 ret_link_status->status = 0; 1044 1045 *out_size = sizeof(*ret_link_status); 1046 } 1047 1048 static void cable_plug_event(void *handle, 1049 void *buf_in, u16 in_size, 1050 void *buf_out, u16 *out_size) 1051 { 1052 struct hinic_cable_plug_event *plug_event = buf_in; 1053 struct hinic_dev *nic_dev = handle; 1054 1055 nic_dev->cable_unplugged = plug_event->plugged ? false : true; 1056 1057 *out_size = sizeof(*plug_event); 1058 plug_event = buf_out; 1059 plug_event->status = 0; 1060 } 1061 1062 static void link_err_event(void *handle, 1063 void *buf_in, u16 in_size, 1064 void *buf_out, u16 *out_size) 1065 { 1066 struct hinic_link_err_event *link_err = buf_in; 1067 struct hinic_dev *nic_dev = handle; 1068 1069 if (link_err->err_type >= LINK_ERR_NUM) 1070 netif_info(nic_dev, link, nic_dev->netdev, 1071 "Link failed, Unknown error type: 0x%x\n", 1072 link_err->err_type); 1073 else 1074 nic_dev->module_unrecognized = true; 1075 1076 *out_size = sizeof(*link_err); 1077 link_err = buf_out; 1078 link_err->status = 0; 1079 } 1080 1081 static int set_features(struct hinic_dev *nic_dev, 1082 netdev_features_t pre_features, 1083 netdev_features_t features, bool force_change) 1084 { 1085 netdev_features_t changed = force_change ? ~0 : pre_features ^ features; 1086 u32 csum_en = HINIC_RX_CSUM_OFFLOAD_EN; 1087 netdev_features_t failed_features = 0; 1088 int ret = 0; 1089 int err = 0; 1090 1091 if (changed & NETIF_F_TSO) { 1092 ret = hinic_port_set_tso(nic_dev, (features & NETIF_F_TSO) ? 1093 HINIC_TSO_ENABLE : HINIC_TSO_DISABLE); 1094 if (ret) { 1095 err = ret; 1096 failed_features |= NETIF_F_TSO; 1097 } 1098 } 1099 1100 if (changed & NETIF_F_RXCSUM) { 1101 ret = hinic_set_rx_csum_offload(nic_dev, csum_en); 1102 if (ret) { 1103 err = ret; 1104 failed_features |= NETIF_F_RXCSUM; 1105 } 1106 } 1107 1108 if (changed & NETIF_F_LRO) { 1109 ret = hinic_set_rx_lro_state(nic_dev, 1110 !!(features & NETIF_F_LRO), 1111 HINIC_LRO_RX_TIMER_DEFAULT, 1112 HINIC_LRO_MAX_WQE_NUM_DEFAULT); 1113 if (ret) { 1114 err = ret; 1115 failed_features |= NETIF_F_LRO; 1116 } 1117 } 1118 1119 if (changed & NETIF_F_HW_VLAN_CTAG_RX) { 1120 ret = hinic_set_rx_vlan_offload(nic_dev, 1121 !!(features & 1122 NETIF_F_HW_VLAN_CTAG_RX)); 1123 if (ret) { 1124 err = ret; 1125 failed_features |= NETIF_F_HW_VLAN_CTAG_RX; 1126 } 1127 } 1128 1129 if (err) { 1130 nic_dev->netdev->features = features ^ failed_features; 1131 return -EIO; 1132 } 1133 1134 return 0; 1135 } 1136 1137 static int hinic_init_intr_coalesce(struct hinic_dev *nic_dev) 1138 { 1139 u64 size; 1140 u16 i; 1141 1142 size = sizeof(struct hinic_intr_coal_info) * nic_dev->max_qps; 1143 nic_dev->rx_intr_coalesce = kzalloc(size, GFP_KERNEL); 1144 if (!nic_dev->rx_intr_coalesce) 1145 return -ENOMEM; 1146 nic_dev->tx_intr_coalesce = kzalloc(size, GFP_KERNEL); 1147 if (!nic_dev->tx_intr_coalesce) { 1148 kfree(nic_dev->rx_intr_coalesce); 1149 return -ENOMEM; 1150 } 1151 1152 for (i = 0; i < nic_dev->max_qps; i++) { 1153 nic_dev->rx_intr_coalesce[i].pending_limt = 1154 HINIC_DEAULT_TXRX_MSIX_PENDING_LIMIT; 1155 nic_dev->rx_intr_coalesce[i].coalesce_timer_cfg = 1156 HINIC_DEAULT_TXRX_MSIX_COALESC_TIMER_CFG; 1157 nic_dev->rx_intr_coalesce[i].resend_timer_cfg = 1158 HINIC_DEAULT_TXRX_MSIX_RESEND_TIMER_CFG; 1159 nic_dev->tx_intr_coalesce[i].pending_limt = 1160 HINIC_DEAULT_TXRX_MSIX_PENDING_LIMIT; 1161 nic_dev->tx_intr_coalesce[i].coalesce_timer_cfg = 1162 HINIC_DEAULT_TXRX_MSIX_COALESC_TIMER_CFG; 1163 nic_dev->tx_intr_coalesce[i].resend_timer_cfg = 1164 HINIC_DEAULT_TXRX_MSIX_RESEND_TIMER_CFG; 1165 } 1166 1167 return 0; 1168 } 1169 1170 static void hinic_free_intr_coalesce(struct hinic_dev *nic_dev) 1171 { 1172 kfree(nic_dev->tx_intr_coalesce); 1173 kfree(nic_dev->rx_intr_coalesce); 1174 } 1175 1176 /** 1177 * nic_dev_init - Initialize the NIC device 1178 * @pdev: the NIC pci device 1179 * 1180 * Return 0 - Success, negative - Failure 1181 **/ 1182 static int nic_dev_init(struct pci_dev *pdev) 1183 { 1184 struct hinic_rx_mode_work *rx_mode_work; 1185 struct hinic_txq_stats *tx_stats; 1186 struct hinic_rxq_stats *rx_stats; 1187 struct hinic_dev *nic_dev; 1188 struct net_device *netdev; 1189 struct hinic_hwdev *hwdev; 1190 struct devlink *devlink; 1191 int err, num_qps; 1192 1193 devlink = hinic_devlink_alloc(); 1194 if (!devlink) { 1195 dev_err(&pdev->dev, "Hinic devlink alloc failed\n"); 1196 return -ENOMEM; 1197 } 1198 1199 hwdev = hinic_init_hwdev(pdev, devlink); 1200 if (IS_ERR(hwdev)) { 1201 dev_err(&pdev->dev, "Failed to initialize HW device\n"); 1202 hinic_devlink_free(devlink); 1203 return PTR_ERR(hwdev); 1204 } 1205 1206 num_qps = hinic_hwdev_num_qps(hwdev); 1207 if (num_qps <= 0) { 1208 dev_err(&pdev->dev, "Invalid number of QPS\n"); 1209 err = -EINVAL; 1210 goto err_num_qps; 1211 } 1212 1213 netdev = alloc_etherdev_mq(sizeof(*nic_dev), num_qps); 1214 if (!netdev) { 1215 dev_err(&pdev->dev, "Failed to allocate Ethernet device\n"); 1216 err = -ENOMEM; 1217 goto err_alloc_etherdev; 1218 } 1219 1220 if (!HINIC_IS_VF(hwdev->hwif)) 1221 netdev->netdev_ops = &hinic_netdev_ops; 1222 else 1223 netdev->netdev_ops = &hinicvf_netdev_ops; 1224 1225 netdev->max_mtu = ETH_MAX_MTU; 1226 1227 nic_dev = netdev_priv(netdev); 1228 nic_dev->netdev = netdev; 1229 nic_dev->hwdev = hwdev; 1230 nic_dev->msg_enable = MSG_ENABLE_DEFAULT; 1231 nic_dev->flags = 0; 1232 nic_dev->txqs = NULL; 1233 nic_dev->rxqs = NULL; 1234 nic_dev->tx_weight = tx_weight; 1235 nic_dev->rx_weight = rx_weight; 1236 nic_dev->sq_depth = HINIC_SQ_DEPTH; 1237 nic_dev->rq_depth = HINIC_RQ_DEPTH; 1238 nic_dev->sriov_info.hwdev = hwdev; 1239 nic_dev->sriov_info.pdev = pdev; 1240 nic_dev->max_qps = num_qps; 1241 nic_dev->devlink = devlink; 1242 1243 hinic_set_ethtool_ops(netdev); 1244 1245 sema_init(&nic_dev->mgmt_lock, 1); 1246 1247 tx_stats = &nic_dev->tx_stats; 1248 rx_stats = &nic_dev->rx_stats; 1249 1250 u64_stats_init(&tx_stats->syncp); 1251 u64_stats_init(&rx_stats->syncp); 1252 1253 nic_dev->vlan_bitmap = devm_kzalloc(&pdev->dev, 1254 VLAN_BITMAP_SIZE(nic_dev), 1255 GFP_KERNEL); 1256 if (!nic_dev->vlan_bitmap) { 1257 err = -ENOMEM; 1258 goto err_vlan_bitmap; 1259 } 1260 1261 nic_dev->workq = create_singlethread_workqueue(HINIC_WQ_NAME); 1262 if (!nic_dev->workq) { 1263 err = -ENOMEM; 1264 goto err_workq; 1265 } 1266 1267 pci_set_drvdata(pdev, netdev); 1268 1269 err = hinic_port_get_mac(nic_dev, netdev->dev_addr); 1270 if (err) { 1271 dev_err(&pdev->dev, "Failed to get mac address\n"); 1272 goto err_get_mac; 1273 } 1274 1275 if (!is_valid_ether_addr(netdev->dev_addr)) { 1276 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) { 1277 dev_err(&pdev->dev, "Invalid MAC address\n"); 1278 err = -EIO; 1279 goto err_add_mac; 1280 } 1281 1282 dev_info(&pdev->dev, "Invalid MAC address %pM, using random\n", 1283 netdev->dev_addr); 1284 eth_hw_addr_random(netdev); 1285 } 1286 1287 err = hinic_port_add_mac(nic_dev, netdev->dev_addr, 0); 1288 if (err && err != HINIC_PF_SET_VF_ALREADY) { 1289 dev_err(&pdev->dev, "Failed to add mac\n"); 1290 goto err_add_mac; 1291 } 1292 1293 err = hinic_port_set_mtu(nic_dev, netdev->mtu); 1294 if (err) { 1295 dev_err(&pdev->dev, "Failed to set mtu\n"); 1296 goto err_set_mtu; 1297 } 1298 1299 rx_mode_work = &nic_dev->rx_mode_work; 1300 INIT_WORK(&rx_mode_work->work, set_rx_mode); 1301 1302 netdev_features_init(netdev); 1303 1304 netif_carrier_off(netdev); 1305 1306 hinic_hwdev_cb_register(nic_dev->hwdev, HINIC_MGMT_MSG_CMD_LINK_STATUS, 1307 nic_dev, link_status_event_handler); 1308 hinic_hwdev_cb_register(nic_dev->hwdev, 1309 HINIC_MGMT_MSG_CMD_CABLE_PLUG_EVENT, 1310 nic_dev, cable_plug_event); 1311 hinic_hwdev_cb_register(nic_dev->hwdev, 1312 HINIC_MGMT_MSG_CMD_LINK_ERR_EVENT, 1313 nic_dev, link_err_event); 1314 1315 err = set_features(nic_dev, 0, nic_dev->netdev->features, true); 1316 if (err) 1317 goto err_set_features; 1318 1319 /* enable pause and disable pfc by default */ 1320 err = hinic_dcb_set_pfc(nic_dev->hwdev, 0, 0); 1321 if (err) 1322 goto err_set_pfc; 1323 1324 SET_NETDEV_DEV(netdev, &pdev->dev); 1325 1326 err = hinic_init_intr_coalesce(nic_dev); 1327 if (err) { 1328 dev_err(&pdev->dev, "Failed to init_intr_coalesce\n"); 1329 goto err_init_intr; 1330 } 1331 1332 hinic_dbg_init(nic_dev); 1333 1334 hinic_func_tbl_dbgfs_init(nic_dev); 1335 1336 err = hinic_func_table_debug_add(nic_dev); 1337 if (err) { 1338 dev_err(&pdev->dev, "Failed to add func_table debug\n"); 1339 goto err_add_func_table_dbg; 1340 } 1341 1342 err = register_netdev(netdev); 1343 if (err) { 1344 dev_err(&pdev->dev, "Failed to register netdev\n"); 1345 goto err_reg_netdev; 1346 } 1347 1348 return 0; 1349 1350 err_reg_netdev: 1351 hinic_func_table_debug_rem(nic_dev); 1352 err_add_func_table_dbg: 1353 hinic_func_tbl_dbgfs_uninit(nic_dev); 1354 hinic_dbg_uninit(nic_dev); 1355 hinic_free_intr_coalesce(nic_dev); 1356 err_init_intr: 1357 err_set_pfc: 1358 err_set_features: 1359 hinic_hwdev_cb_unregister(nic_dev->hwdev, 1360 HINIC_MGMT_MSG_CMD_LINK_ERR_EVENT); 1361 hinic_hwdev_cb_unregister(nic_dev->hwdev, 1362 HINIC_MGMT_MSG_CMD_CABLE_PLUG_EVENT); 1363 hinic_hwdev_cb_unregister(nic_dev->hwdev, 1364 HINIC_MGMT_MSG_CMD_LINK_STATUS); 1365 cancel_work_sync(&rx_mode_work->work); 1366 1367 err_set_mtu: 1368 hinic_port_del_mac(nic_dev, netdev->dev_addr, 0); 1369 err_add_mac: 1370 err_get_mac: 1371 pci_set_drvdata(pdev, NULL); 1372 destroy_workqueue(nic_dev->workq); 1373 err_workq: 1374 err_vlan_bitmap: 1375 free_netdev(netdev); 1376 1377 err_alloc_etherdev: 1378 err_num_qps: 1379 hinic_free_hwdev(hwdev); 1380 hinic_devlink_free(devlink); 1381 return err; 1382 } 1383 1384 static int hinic_probe(struct pci_dev *pdev, 1385 const struct pci_device_id *id) 1386 { 1387 int err = pci_enable_device(pdev); 1388 1389 if (err) { 1390 dev_err(&pdev->dev, "Failed to enable PCI device\n"); 1391 return err; 1392 } 1393 1394 err = pci_request_regions(pdev, HINIC_DRV_NAME); 1395 if (err) { 1396 dev_err(&pdev->dev, "Failed to request PCI regions\n"); 1397 goto err_pci_regions; 1398 } 1399 1400 pci_set_master(pdev); 1401 1402 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); 1403 if (err) { 1404 dev_warn(&pdev->dev, "Couldn't set 64-bit DMA mask\n"); 1405 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 1406 if (err) { 1407 dev_err(&pdev->dev, "Failed to set DMA mask\n"); 1408 goto err_dma_mask; 1409 } 1410 } 1411 1412 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); 1413 if (err) { 1414 dev_warn(&pdev->dev, 1415 "Couldn't set 64-bit consistent DMA mask\n"); 1416 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); 1417 if (err) { 1418 dev_err(&pdev->dev, 1419 "Failed to set consistent DMA mask\n"); 1420 goto err_dma_consistent_mask; 1421 } 1422 } 1423 1424 err = nic_dev_init(pdev); 1425 if (err) { 1426 dev_err(&pdev->dev, "Failed to initialize NIC device\n"); 1427 goto err_nic_dev_init; 1428 } 1429 1430 dev_info(&pdev->dev, "HiNIC driver - probed\n"); 1431 return 0; 1432 1433 err_nic_dev_init: 1434 err_dma_consistent_mask: 1435 err_dma_mask: 1436 pci_release_regions(pdev); 1437 1438 err_pci_regions: 1439 pci_disable_device(pdev); 1440 return err; 1441 } 1442 1443 #define HINIC_WAIT_SRIOV_CFG_TIMEOUT 15000 1444 1445 static void wait_sriov_cfg_complete(struct hinic_dev *nic_dev) 1446 { 1447 struct hinic_sriov_info *sriov_info = &nic_dev->sriov_info; 1448 u32 loop_cnt = 0; 1449 1450 set_bit(HINIC_FUNC_REMOVE, &sriov_info->state); 1451 usleep_range(9900, 10000); 1452 1453 while (loop_cnt < HINIC_WAIT_SRIOV_CFG_TIMEOUT) { 1454 if (!test_bit(HINIC_SRIOV_ENABLE, &sriov_info->state) && 1455 !test_bit(HINIC_SRIOV_DISABLE, &sriov_info->state)) 1456 return; 1457 1458 usleep_range(9900, 10000); 1459 loop_cnt++; 1460 } 1461 } 1462 1463 static void hinic_remove(struct pci_dev *pdev) 1464 { 1465 struct net_device *netdev = pci_get_drvdata(pdev); 1466 struct hinic_dev *nic_dev = netdev_priv(netdev); 1467 struct devlink *devlink = nic_dev->devlink; 1468 struct hinic_rx_mode_work *rx_mode_work; 1469 1470 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) { 1471 wait_sriov_cfg_complete(nic_dev); 1472 hinic_pci_sriov_disable(pdev); 1473 } 1474 1475 unregister_netdev(netdev); 1476 1477 hinic_func_table_debug_rem(nic_dev); 1478 1479 hinic_func_tbl_dbgfs_uninit(nic_dev); 1480 1481 hinic_dbg_uninit(nic_dev); 1482 1483 hinic_free_intr_coalesce(nic_dev); 1484 1485 hinic_port_del_mac(nic_dev, netdev->dev_addr, 0); 1486 1487 hinic_hwdev_cb_unregister(nic_dev->hwdev, 1488 HINIC_MGMT_MSG_CMD_LINK_ERR_EVENT); 1489 hinic_hwdev_cb_unregister(nic_dev->hwdev, 1490 HINIC_MGMT_MSG_CMD_CABLE_PLUG_EVENT); 1491 hinic_hwdev_cb_unregister(nic_dev->hwdev, 1492 HINIC_MGMT_MSG_CMD_LINK_STATUS); 1493 1494 rx_mode_work = &nic_dev->rx_mode_work; 1495 cancel_work_sync(&rx_mode_work->work); 1496 1497 pci_set_drvdata(pdev, NULL); 1498 1499 destroy_workqueue(nic_dev->workq); 1500 1501 hinic_free_hwdev(nic_dev->hwdev); 1502 1503 free_netdev(netdev); 1504 1505 hinic_devlink_free(devlink); 1506 1507 pci_release_regions(pdev); 1508 pci_disable_device(pdev); 1509 1510 dev_info(&pdev->dev, "HiNIC driver - removed\n"); 1511 } 1512 1513 static void hinic_shutdown(struct pci_dev *pdev) 1514 { 1515 pci_disable_device(pdev); 1516 } 1517 1518 static const struct pci_device_id hinic_pci_table[] = { 1519 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_QUAD_PORT_25GE), 0}, 1520 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_100GE), 0}, 1521 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_100GE_MEZZ), 0}, 1522 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_QUAD_PORT_25GE_MEZZ), 0}, 1523 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_VF), 0}, 1524 { 0, 0} 1525 }; 1526 MODULE_DEVICE_TABLE(pci, hinic_pci_table); 1527 1528 static struct pci_driver hinic_driver = { 1529 .name = HINIC_DRV_NAME, 1530 .id_table = hinic_pci_table, 1531 .probe = hinic_probe, 1532 .remove = hinic_remove, 1533 .shutdown = hinic_shutdown, 1534 .sriov_configure = hinic_pci_sriov_configure, 1535 }; 1536 1537 static int __init hinic_module_init(void) 1538 { 1539 hinic_dbg_register_debugfs(HINIC_DRV_NAME); 1540 return pci_register_driver(&hinic_driver); 1541 } 1542 1543 static void __exit hinic_module_exit(void) 1544 { 1545 pci_unregister_driver(&hinic_driver); 1546 hinic_dbg_unregister_debugfs(); 1547 } 1548 1549 module_init(hinic_module_init); 1550 module_exit(hinic_module_exit); 1551