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