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 return 0; 178 179 err_add_sq_dbg: 180 hinic_clean_txq(&nic_dev->txqs[i]); 181 err_init_txq: 182 for (j = 0; j < i; j++) { 183 hinic_sq_debug_rem(nic_dev->txqs[j].sq); 184 hinic_clean_txq(&nic_dev->txqs[j]); 185 } 186 187 hinic_sq_dbgfs_uninit(nic_dev); 188 189 devm_kfree(&netdev->dev, nic_dev->txqs); 190 return err; 191 } 192 193 static void enable_txqs_napi(struct hinic_dev *nic_dev) 194 { 195 int num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev); 196 int i; 197 198 for (i = 0; i < num_txqs; i++) 199 napi_enable(&nic_dev->txqs[i].napi); 200 } 201 202 static void disable_txqs_napi(struct hinic_dev *nic_dev) 203 { 204 int num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev); 205 int i; 206 207 for (i = 0; i < num_txqs; i++) 208 napi_disable(&nic_dev->txqs[i].napi); 209 } 210 211 /** 212 * free_txqs - Free the Logical Tx Queues of specific NIC device 213 * @nic_dev: the specific NIC device 214 **/ 215 static void free_txqs(struct hinic_dev *nic_dev) 216 { 217 int i, num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev); 218 struct net_device *netdev = nic_dev->netdev; 219 220 if (!nic_dev->txqs) 221 return; 222 223 for (i = 0; i < num_txqs; i++) { 224 hinic_sq_debug_rem(nic_dev->txqs[i].sq); 225 hinic_clean_txq(&nic_dev->txqs[i]); 226 } 227 228 hinic_sq_dbgfs_uninit(nic_dev); 229 230 devm_kfree(&netdev->dev, nic_dev->txqs); 231 nic_dev->txqs = NULL; 232 } 233 234 /** 235 * create_rxqs - Create the Logical Rx Queues of specific NIC device 236 * @nic_dev: the specific NIC device 237 * 238 * Return 0 - Success, negative - Failure 239 **/ 240 static int create_rxqs(struct hinic_dev *nic_dev) 241 { 242 int err, i, j, num_rxqs = hinic_hwdev_num_qps(nic_dev->hwdev); 243 struct net_device *netdev = nic_dev->netdev; 244 size_t rxq_size; 245 246 if (nic_dev->rxqs) 247 return -EINVAL; 248 249 rxq_size = num_rxqs * sizeof(*nic_dev->rxqs); 250 nic_dev->rxqs = devm_kzalloc(&netdev->dev, rxq_size, GFP_KERNEL); 251 if (!nic_dev->rxqs) 252 return -ENOMEM; 253 254 hinic_rq_dbgfs_init(nic_dev); 255 256 for (i = 0; i < num_rxqs; i++) { 257 struct hinic_rq *rq = hinic_hwdev_get_rq(nic_dev->hwdev, i); 258 259 err = hinic_init_rxq(&nic_dev->rxqs[i], rq, netdev); 260 if (err) { 261 netif_err(nic_dev, drv, netdev, 262 "Failed to init rxq\n"); 263 goto err_init_rxq; 264 } 265 266 err = hinic_rq_debug_add(nic_dev, i); 267 if (err) { 268 netif_err(nic_dev, drv, netdev, 269 "Failed to add RQ%d debug\n", i); 270 goto err_add_rq_dbg; 271 } 272 } 273 274 return 0; 275 276 err_add_rq_dbg: 277 hinic_clean_rxq(&nic_dev->rxqs[i]); 278 err_init_rxq: 279 for (j = 0; j < i; j++) { 280 hinic_rq_debug_rem(nic_dev->rxqs[j].rq); 281 hinic_clean_rxq(&nic_dev->rxqs[j]); 282 } 283 284 hinic_rq_dbgfs_uninit(nic_dev); 285 286 devm_kfree(&netdev->dev, nic_dev->rxqs); 287 return err; 288 } 289 290 /** 291 * free_rxqs - Free the Logical Rx Queues of specific NIC device 292 * @nic_dev: the specific NIC device 293 **/ 294 static void free_rxqs(struct hinic_dev *nic_dev) 295 { 296 int i, num_rxqs = hinic_hwdev_num_qps(nic_dev->hwdev); 297 struct net_device *netdev = nic_dev->netdev; 298 299 if (!nic_dev->rxqs) 300 return; 301 302 for (i = 0; i < num_rxqs; i++) { 303 hinic_rq_debug_rem(nic_dev->rxqs[i].rq); 304 hinic_clean_rxq(&nic_dev->rxqs[i]); 305 } 306 307 hinic_rq_dbgfs_uninit(nic_dev); 308 309 devm_kfree(&netdev->dev, nic_dev->rxqs); 310 nic_dev->rxqs = NULL; 311 } 312 313 static int hinic_configure_max_qnum(struct hinic_dev *nic_dev) 314 { 315 return hinic_set_max_qnum(nic_dev, nic_dev->hwdev->nic_cap.max_qps); 316 } 317 318 static int hinic_rss_init(struct hinic_dev *nic_dev) 319 { 320 u8 default_rss_key[HINIC_RSS_KEY_SIZE]; 321 u8 tmpl_idx = nic_dev->rss_tmpl_idx; 322 u32 *indir_tbl; 323 int err, i; 324 325 indir_tbl = kcalloc(HINIC_RSS_INDIR_SIZE, sizeof(u32), GFP_KERNEL); 326 if (!indir_tbl) 327 return -ENOMEM; 328 329 netdev_rss_key_fill(default_rss_key, sizeof(default_rss_key)); 330 for (i = 0; i < HINIC_RSS_INDIR_SIZE; i++) 331 indir_tbl[i] = ethtool_rxfh_indir_default(i, nic_dev->num_rss); 332 333 err = hinic_rss_set_template_tbl(nic_dev, tmpl_idx, default_rss_key); 334 if (err) 335 goto out; 336 337 err = hinic_rss_set_indir_tbl(nic_dev, tmpl_idx, indir_tbl); 338 if (err) 339 goto out; 340 341 err = hinic_set_rss_type(nic_dev, tmpl_idx, nic_dev->rss_type); 342 if (err) 343 goto out; 344 345 err = hinic_rss_set_hash_engine(nic_dev, tmpl_idx, 346 nic_dev->rss_hash_engine); 347 if (err) 348 goto out; 349 350 err = hinic_rss_cfg(nic_dev, 1, tmpl_idx); 351 if (err) 352 goto out; 353 354 out: 355 kfree(indir_tbl); 356 return err; 357 } 358 359 static void hinic_rss_deinit(struct hinic_dev *nic_dev) 360 { 361 hinic_rss_cfg(nic_dev, 0, nic_dev->rss_tmpl_idx); 362 } 363 364 static void hinic_init_rss_parameters(struct hinic_dev *nic_dev) 365 { 366 nic_dev->rss_hash_engine = HINIC_RSS_HASH_ENGINE_TYPE_XOR; 367 nic_dev->rss_type.tcp_ipv6_ext = 1; 368 nic_dev->rss_type.ipv6_ext = 1; 369 nic_dev->rss_type.tcp_ipv6 = 1; 370 nic_dev->rss_type.ipv6 = 1; 371 nic_dev->rss_type.tcp_ipv4 = 1; 372 nic_dev->rss_type.ipv4 = 1; 373 nic_dev->rss_type.udp_ipv6 = 1; 374 nic_dev->rss_type.udp_ipv4 = 1; 375 } 376 377 static void hinic_enable_rss(struct hinic_dev *nic_dev) 378 { 379 struct net_device *netdev = nic_dev->netdev; 380 struct hinic_hwdev *hwdev = nic_dev->hwdev; 381 struct hinic_hwif *hwif = hwdev->hwif; 382 struct pci_dev *pdev = hwif->pdev; 383 int i, node, err = 0; 384 u16 num_cpus = 0; 385 386 if (nic_dev->max_qps <= 1) { 387 nic_dev->flags &= ~HINIC_RSS_ENABLE; 388 nic_dev->rss_limit = nic_dev->max_qps; 389 nic_dev->num_qps = nic_dev->max_qps; 390 nic_dev->num_rss = nic_dev->max_qps; 391 392 return; 393 } 394 395 err = hinic_rss_template_alloc(nic_dev, &nic_dev->rss_tmpl_idx); 396 if (err) { 397 netif_err(nic_dev, drv, netdev, 398 "Failed to alloc tmpl_idx for rss, can't enable rss for this function\n"); 399 nic_dev->flags &= ~HINIC_RSS_ENABLE; 400 nic_dev->max_qps = 1; 401 nic_dev->rss_limit = nic_dev->max_qps; 402 nic_dev->num_qps = nic_dev->max_qps; 403 nic_dev->num_rss = nic_dev->max_qps; 404 405 return; 406 } 407 408 nic_dev->flags |= HINIC_RSS_ENABLE; 409 410 for (i = 0; i < num_online_cpus(); i++) { 411 node = cpu_to_node(i); 412 if (node == dev_to_node(&pdev->dev)) 413 num_cpus++; 414 } 415 416 if (!num_cpus) 417 num_cpus = num_online_cpus(); 418 419 nic_dev->num_qps = hinic_hwdev_num_qps(hwdev); 420 nic_dev->num_qps = min_t(u16, nic_dev->num_qps, num_cpus); 421 422 nic_dev->rss_limit = nic_dev->num_qps; 423 nic_dev->num_rss = nic_dev->num_qps; 424 425 hinic_init_rss_parameters(nic_dev); 426 err = hinic_rss_init(nic_dev); 427 if (err) 428 netif_err(nic_dev, drv, netdev, "Failed to init rss\n"); 429 } 430 431 int hinic_open(struct net_device *netdev) 432 { 433 struct hinic_dev *nic_dev = netdev_priv(netdev); 434 enum hinic_port_link_state link_state; 435 int err, ret; 436 437 if (!(nic_dev->flags & HINIC_INTF_UP)) { 438 err = hinic_hwdev_ifup(nic_dev->hwdev, nic_dev->sq_depth, 439 nic_dev->rq_depth); 440 if (err) { 441 netif_err(nic_dev, drv, netdev, 442 "Failed - HW interface up\n"); 443 return err; 444 } 445 } 446 447 err = create_txqs(nic_dev); 448 if (err) { 449 netif_err(nic_dev, drv, netdev, 450 "Failed to create Tx queues\n"); 451 goto err_create_txqs; 452 } 453 454 enable_txqs_napi(nic_dev); 455 456 err = create_rxqs(nic_dev); 457 if (err) { 458 netif_err(nic_dev, drv, netdev, 459 "Failed to create Rx queues\n"); 460 goto err_create_rxqs; 461 } 462 463 hinic_enable_rss(nic_dev); 464 465 err = hinic_configure_max_qnum(nic_dev); 466 if (err) { 467 netif_err(nic_dev, drv, nic_dev->netdev, 468 "Failed to configure the maximum number of queues\n"); 469 goto err_port_state; 470 } 471 472 netif_set_real_num_tx_queues(netdev, nic_dev->num_qps); 473 netif_set_real_num_rx_queues(netdev, nic_dev->num_qps); 474 475 err = hinic_port_set_state(nic_dev, HINIC_PORT_ENABLE); 476 if (err) { 477 netif_err(nic_dev, drv, netdev, 478 "Failed to set port state\n"); 479 goto err_port_state; 480 } 481 482 err = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_ENABLE); 483 if (err) { 484 netif_err(nic_dev, drv, netdev, 485 "Failed to set func port state\n"); 486 goto err_func_port_state; 487 } 488 489 down(&nic_dev->mgmt_lock); 490 491 err = hinic_port_link_state(nic_dev, &link_state); 492 if (err) { 493 netif_err(nic_dev, drv, netdev, "Failed to get link state\n"); 494 goto err_port_link; 495 } 496 497 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) 498 hinic_notify_all_vfs_link_changed(nic_dev->hwdev, link_state); 499 500 if (link_state == HINIC_LINK_STATE_UP) { 501 nic_dev->flags |= HINIC_LINK_UP; 502 nic_dev->cable_unplugged = false; 503 nic_dev->module_unrecognized = false; 504 } 505 506 nic_dev->flags |= HINIC_INTF_UP; 507 508 if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) == 509 (HINIC_LINK_UP | HINIC_INTF_UP)) { 510 netif_info(nic_dev, drv, netdev, "link + intf UP\n"); 511 netif_carrier_on(netdev); 512 netif_tx_wake_all_queues(netdev); 513 } 514 515 up(&nic_dev->mgmt_lock); 516 517 netif_info(nic_dev, drv, netdev, "HINIC_INTF is UP\n"); 518 return 0; 519 520 err_port_link: 521 up(&nic_dev->mgmt_lock); 522 ret = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE); 523 if (ret) 524 netif_warn(nic_dev, drv, netdev, 525 "Failed to revert func port state\n"); 526 527 err_func_port_state: 528 ret = hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE); 529 if (ret) 530 netif_warn(nic_dev, drv, netdev, 531 "Failed to revert port state\n"); 532 err_port_state: 533 free_rxqs(nic_dev); 534 if (nic_dev->flags & HINIC_RSS_ENABLE) { 535 hinic_rss_deinit(nic_dev); 536 hinic_rss_template_free(nic_dev, nic_dev->rss_tmpl_idx); 537 } 538 539 err_create_rxqs: 540 disable_txqs_napi(nic_dev); 541 free_txqs(nic_dev); 542 543 err_create_txqs: 544 if (!(nic_dev->flags & HINIC_INTF_UP)) 545 hinic_hwdev_ifdown(nic_dev->hwdev); 546 return err; 547 } 548 549 int hinic_close(struct net_device *netdev) 550 { 551 struct hinic_dev *nic_dev = netdev_priv(netdev); 552 unsigned int flags; 553 554 /* Disable txq napi firstly to aviod rewaking txq in free_tx_poll */ 555 disable_txqs_napi(nic_dev); 556 557 down(&nic_dev->mgmt_lock); 558 559 flags = nic_dev->flags; 560 nic_dev->flags &= ~HINIC_INTF_UP; 561 562 netif_carrier_off(netdev); 563 netif_tx_disable(netdev); 564 565 update_nic_stats(nic_dev); 566 567 up(&nic_dev->mgmt_lock); 568 569 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) 570 hinic_notify_all_vfs_link_changed(nic_dev->hwdev, 0); 571 572 hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE); 573 574 hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE); 575 576 if (nic_dev->flags & HINIC_RSS_ENABLE) { 577 hinic_rss_deinit(nic_dev); 578 hinic_rss_template_free(nic_dev, nic_dev->rss_tmpl_idx); 579 } 580 581 free_rxqs(nic_dev); 582 free_txqs(nic_dev); 583 584 if (flags & HINIC_INTF_UP) 585 hinic_hwdev_ifdown(nic_dev->hwdev); 586 587 netif_info(nic_dev, drv, netdev, "HINIC_INTF is DOWN\n"); 588 return 0; 589 } 590 591 static int hinic_change_mtu(struct net_device *netdev, int new_mtu) 592 { 593 struct hinic_dev *nic_dev = netdev_priv(netdev); 594 int err; 595 596 netif_info(nic_dev, drv, netdev, "set_mtu = %d\n", new_mtu); 597 598 err = hinic_port_set_mtu(nic_dev, new_mtu); 599 if (err) 600 netif_err(nic_dev, drv, netdev, "Failed to set port mtu\n"); 601 else 602 netdev->mtu = new_mtu; 603 604 return err; 605 } 606 607 /** 608 * change_mac_addr - change the main mac address of network device 609 * @netdev: network device 610 * @addr: mac address to set 611 * 612 * Return 0 - Success, negative - Failure 613 **/ 614 static int change_mac_addr(struct net_device *netdev, const u8 *addr) 615 { 616 struct hinic_dev *nic_dev = netdev_priv(netdev); 617 u16 vid = 0; 618 int err; 619 620 if (!is_valid_ether_addr(addr)) 621 return -EADDRNOTAVAIL; 622 623 netif_info(nic_dev, drv, netdev, "change mac addr = %02x %02x %02x %02x %02x %02x\n", 624 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 625 626 down(&nic_dev->mgmt_lock); 627 628 do { 629 err = hinic_port_del_mac(nic_dev, netdev->dev_addr, vid); 630 if (err) { 631 netif_err(nic_dev, drv, netdev, 632 "Failed to delete mac\n"); 633 break; 634 } 635 636 err = hinic_port_add_mac(nic_dev, addr, vid); 637 if (err) { 638 netif_err(nic_dev, drv, netdev, "Failed to add mac\n"); 639 break; 640 } 641 642 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1); 643 } while (vid != VLAN_N_VID); 644 645 up(&nic_dev->mgmt_lock); 646 return err; 647 } 648 649 static int hinic_set_mac_addr(struct net_device *netdev, void *addr) 650 { 651 unsigned char new_mac[ETH_ALEN]; 652 struct sockaddr *saddr = addr; 653 int err; 654 655 memcpy(new_mac, saddr->sa_data, ETH_ALEN); 656 657 err = change_mac_addr(netdev, new_mac); 658 if (!err) 659 memcpy(netdev->dev_addr, new_mac, ETH_ALEN); 660 661 return err; 662 } 663 664 /** 665 * add_mac_addr - add mac address to network device 666 * @netdev: network device 667 * @addr: mac address to add 668 * 669 * Return 0 - Success, negative - Failure 670 **/ 671 static int add_mac_addr(struct net_device *netdev, const u8 *addr) 672 { 673 struct hinic_dev *nic_dev = netdev_priv(netdev); 674 u16 vid = 0; 675 int err; 676 677 netif_info(nic_dev, drv, netdev, "set mac addr = %02x %02x %02x %02x %02x %02x\n", 678 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 679 680 down(&nic_dev->mgmt_lock); 681 682 do { 683 err = hinic_port_add_mac(nic_dev, addr, vid); 684 if (err) { 685 netif_err(nic_dev, drv, netdev, "Failed to add mac\n"); 686 break; 687 } 688 689 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1); 690 } while (vid != VLAN_N_VID); 691 692 up(&nic_dev->mgmt_lock); 693 return err; 694 } 695 696 /** 697 * remove_mac_addr - remove mac address from network device 698 * @netdev: network device 699 * @addr: mac address to remove 700 * 701 * Return 0 - Success, negative - Failure 702 **/ 703 static int remove_mac_addr(struct net_device *netdev, const u8 *addr) 704 { 705 struct hinic_dev *nic_dev = netdev_priv(netdev); 706 u16 vid = 0; 707 int err; 708 709 if (!is_valid_ether_addr(addr)) 710 return -EADDRNOTAVAIL; 711 712 netif_info(nic_dev, drv, netdev, "remove mac addr = %02x %02x %02x %02x %02x %02x\n", 713 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 714 715 down(&nic_dev->mgmt_lock); 716 717 do { 718 err = hinic_port_del_mac(nic_dev, addr, vid); 719 if (err) { 720 netif_err(nic_dev, drv, netdev, 721 "Failed to delete mac\n"); 722 break; 723 } 724 725 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1); 726 } while (vid != VLAN_N_VID); 727 728 up(&nic_dev->mgmt_lock); 729 return err; 730 } 731 732 static int hinic_vlan_rx_add_vid(struct net_device *netdev, 733 __always_unused __be16 proto, u16 vid) 734 { 735 struct hinic_dev *nic_dev = netdev_priv(netdev); 736 int ret, err; 737 738 netif_info(nic_dev, drv, netdev, "add vid = %d\n", vid); 739 740 down(&nic_dev->mgmt_lock); 741 742 err = hinic_port_add_vlan(nic_dev, vid); 743 if (err) { 744 netif_err(nic_dev, drv, netdev, "Failed to add vlan\n"); 745 goto err_vlan_add; 746 } 747 748 err = hinic_port_add_mac(nic_dev, netdev->dev_addr, vid); 749 if (err && err != HINIC_PF_SET_VF_ALREADY) { 750 netif_err(nic_dev, drv, netdev, "Failed to set mac\n"); 751 goto err_add_mac; 752 } 753 754 bitmap_set(nic_dev->vlan_bitmap, vid, 1); 755 756 up(&nic_dev->mgmt_lock); 757 return 0; 758 759 err_add_mac: 760 ret = hinic_port_del_vlan(nic_dev, vid); 761 if (ret) 762 netif_err(nic_dev, drv, netdev, 763 "Failed to revert by removing vlan\n"); 764 765 err_vlan_add: 766 up(&nic_dev->mgmt_lock); 767 return err; 768 } 769 770 static int hinic_vlan_rx_kill_vid(struct net_device *netdev, 771 __always_unused __be16 proto, u16 vid) 772 { 773 struct hinic_dev *nic_dev = netdev_priv(netdev); 774 int err; 775 776 netif_info(nic_dev, drv, netdev, "remove vid = %d\n", vid); 777 778 down(&nic_dev->mgmt_lock); 779 780 err = hinic_port_del_vlan(nic_dev, vid); 781 if (err) { 782 netif_err(nic_dev, drv, netdev, "Failed to delete vlan\n"); 783 goto err_del_vlan; 784 } 785 786 bitmap_clear(nic_dev->vlan_bitmap, vid, 1); 787 788 up(&nic_dev->mgmt_lock); 789 return 0; 790 791 err_del_vlan: 792 up(&nic_dev->mgmt_lock); 793 return err; 794 } 795 796 static void set_rx_mode(struct work_struct *work) 797 { 798 struct hinic_rx_mode_work *rx_mode_work = work_to_rx_mode_work(work); 799 struct hinic_dev *nic_dev = rx_mode_work_to_nic_dev(rx_mode_work); 800 801 hinic_port_set_rx_mode(nic_dev, rx_mode_work->rx_mode); 802 803 __dev_uc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr); 804 __dev_mc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr); 805 } 806 807 static void hinic_set_rx_mode(struct net_device *netdev) 808 { 809 struct hinic_dev *nic_dev = netdev_priv(netdev); 810 struct hinic_rx_mode_work *rx_mode_work; 811 u32 rx_mode; 812 813 rx_mode_work = &nic_dev->rx_mode_work; 814 815 rx_mode = HINIC_RX_MODE_UC | 816 HINIC_RX_MODE_MC | 817 HINIC_RX_MODE_BC; 818 819 if (netdev->flags & IFF_PROMISC) { 820 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) 821 rx_mode |= HINIC_RX_MODE_PROMISC; 822 } else if (netdev->flags & IFF_ALLMULTI) { 823 rx_mode |= HINIC_RX_MODE_MC_ALL; 824 } 825 826 rx_mode_work->rx_mode = rx_mode; 827 828 queue_work(nic_dev->workq, &rx_mode_work->work); 829 } 830 831 static void hinic_tx_timeout(struct net_device *netdev, unsigned int txqueue) 832 { 833 struct hinic_dev *nic_dev = netdev_priv(netdev); 834 u16 sw_pi, hw_ci, sw_ci; 835 struct hinic_sq *sq; 836 u16 num_sqs, q_id; 837 838 num_sqs = hinic_hwdev_num_qps(nic_dev->hwdev); 839 840 netif_err(nic_dev, drv, netdev, "Tx timeout\n"); 841 842 for (q_id = 0; q_id < num_sqs; q_id++) { 843 if (!netif_xmit_stopped(netdev_get_tx_queue(netdev, q_id))) 844 continue; 845 846 sq = hinic_hwdev_get_sq(nic_dev->hwdev, q_id); 847 sw_pi = atomic_read(&sq->wq->prod_idx) & sq->wq->mask; 848 hw_ci = be16_to_cpu(*(u16 *)(sq->hw_ci_addr)) & sq->wq->mask; 849 sw_ci = atomic_read(&sq->wq->cons_idx) & sq->wq->mask; 850 netif_err(nic_dev, drv, netdev, "Txq%d: sw_pi: %d, hw_ci: %d, sw_ci: %d, napi->state: 0x%lx\n", 851 q_id, sw_pi, hw_ci, sw_ci, 852 nic_dev->txqs[q_id].napi.state); 853 } 854 } 855 856 static void hinic_get_stats64(struct net_device *netdev, 857 struct rtnl_link_stats64 *stats) 858 { 859 struct hinic_dev *nic_dev = netdev_priv(netdev); 860 struct hinic_rxq_stats *nic_rx_stats; 861 struct hinic_txq_stats *nic_tx_stats; 862 863 nic_rx_stats = &nic_dev->rx_stats; 864 nic_tx_stats = &nic_dev->tx_stats; 865 866 down(&nic_dev->mgmt_lock); 867 868 if (nic_dev->flags & HINIC_INTF_UP) 869 update_nic_stats(nic_dev); 870 871 up(&nic_dev->mgmt_lock); 872 873 stats->rx_bytes = nic_rx_stats->bytes; 874 stats->rx_packets = nic_rx_stats->pkts; 875 stats->rx_errors = nic_rx_stats->errors; 876 877 stats->tx_bytes = nic_tx_stats->bytes; 878 stats->tx_packets = nic_tx_stats->pkts; 879 stats->tx_errors = nic_tx_stats->tx_dropped; 880 } 881 882 static int hinic_set_features(struct net_device *netdev, 883 netdev_features_t features) 884 { 885 struct hinic_dev *nic_dev = netdev_priv(netdev); 886 887 return set_features(nic_dev, nic_dev->netdev->features, 888 features, false); 889 } 890 891 static netdev_features_t hinic_fix_features(struct net_device *netdev, 892 netdev_features_t features) 893 { 894 struct hinic_dev *nic_dev = netdev_priv(netdev); 895 896 /* If Rx checksum is disabled, then LRO should also be disabled */ 897 if (!(features & NETIF_F_RXCSUM)) { 898 netif_info(nic_dev, drv, netdev, "disabling LRO as RXCSUM is off\n"); 899 features &= ~NETIF_F_LRO; 900 } 901 902 return features; 903 } 904 905 static const struct net_device_ops hinic_netdev_ops = { 906 .ndo_open = hinic_open, 907 .ndo_stop = hinic_close, 908 .ndo_change_mtu = hinic_change_mtu, 909 .ndo_set_mac_address = hinic_set_mac_addr, 910 .ndo_validate_addr = eth_validate_addr, 911 .ndo_vlan_rx_add_vid = hinic_vlan_rx_add_vid, 912 .ndo_vlan_rx_kill_vid = hinic_vlan_rx_kill_vid, 913 .ndo_set_rx_mode = hinic_set_rx_mode, 914 .ndo_start_xmit = hinic_xmit_frame, 915 .ndo_tx_timeout = hinic_tx_timeout, 916 .ndo_get_stats64 = hinic_get_stats64, 917 .ndo_fix_features = hinic_fix_features, 918 .ndo_set_features = hinic_set_features, 919 .ndo_set_vf_mac = hinic_ndo_set_vf_mac, 920 .ndo_set_vf_vlan = hinic_ndo_set_vf_vlan, 921 .ndo_get_vf_config = hinic_ndo_get_vf_config, 922 .ndo_set_vf_trust = hinic_ndo_set_vf_trust, 923 .ndo_set_vf_rate = hinic_ndo_set_vf_bw, 924 .ndo_set_vf_spoofchk = hinic_ndo_set_vf_spoofchk, 925 .ndo_set_vf_link_state = hinic_ndo_set_vf_link_state, 926 }; 927 928 static const struct net_device_ops hinicvf_netdev_ops = { 929 .ndo_open = hinic_open, 930 .ndo_stop = hinic_close, 931 .ndo_change_mtu = hinic_change_mtu, 932 .ndo_set_mac_address = hinic_set_mac_addr, 933 .ndo_validate_addr = eth_validate_addr, 934 .ndo_vlan_rx_add_vid = hinic_vlan_rx_add_vid, 935 .ndo_vlan_rx_kill_vid = hinic_vlan_rx_kill_vid, 936 .ndo_set_rx_mode = hinic_set_rx_mode, 937 .ndo_start_xmit = hinic_xmit_frame, 938 .ndo_tx_timeout = hinic_tx_timeout, 939 .ndo_get_stats64 = hinic_get_stats64, 940 .ndo_fix_features = hinic_fix_features, 941 .ndo_set_features = hinic_set_features, 942 }; 943 944 static void netdev_features_init(struct net_device *netdev) 945 { 946 netdev->hw_features = NETIF_F_SG | NETIF_F_HIGHDMA | NETIF_F_IP_CSUM | 947 NETIF_F_IPV6_CSUM | NETIF_F_TSO | NETIF_F_TSO6 | 948 NETIF_F_RXCSUM | NETIF_F_LRO | 949 NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX | 950 NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_UDP_TUNNEL_CSUM; 951 952 netdev->vlan_features = netdev->hw_features; 953 954 netdev->features = netdev->hw_features | NETIF_F_HW_VLAN_CTAG_FILTER; 955 956 netdev->hw_enc_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SCTP_CRC | 957 NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_TSO_ECN | 958 NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_GSO_UDP_TUNNEL; 959 } 960 961 static void hinic_refresh_nic_cfg(struct hinic_dev *nic_dev) 962 { 963 struct hinic_nic_cfg *nic_cfg = &nic_dev->hwdev->func_to_io.nic_cfg; 964 struct hinic_pause_config pause_info = {0}; 965 struct hinic_port_cap port_cap = {0}; 966 967 if (hinic_port_get_cap(nic_dev, &port_cap)) 968 return; 969 970 mutex_lock(&nic_cfg->cfg_mutex); 971 if (nic_cfg->pause_set || !port_cap.autoneg_state) { 972 nic_cfg->auto_neg = port_cap.autoneg_state; 973 pause_info.auto_neg = nic_cfg->auto_neg; 974 pause_info.rx_pause = nic_cfg->rx_pause; 975 pause_info.tx_pause = nic_cfg->tx_pause; 976 hinic_set_hw_pause_info(nic_dev->hwdev, &pause_info); 977 } 978 mutex_unlock(&nic_cfg->cfg_mutex); 979 } 980 981 /** 982 * link_status_event_handler - link event handler 983 * @handle: nic device for the handler 984 * @buf_in: input buffer 985 * @in_size: input size 986 * @buf_out: output buffer 987 * @out_size: returned output size 988 * 989 * Return 0 - Success, negative - Failure 990 **/ 991 static void link_status_event_handler(void *handle, void *buf_in, u16 in_size, 992 void *buf_out, u16 *out_size) 993 { 994 struct hinic_port_link_status *link_status, *ret_link_status; 995 struct hinic_dev *nic_dev = handle; 996 997 link_status = buf_in; 998 999 if (link_status->link == HINIC_LINK_STATE_UP) { 1000 down(&nic_dev->mgmt_lock); 1001 1002 nic_dev->flags |= HINIC_LINK_UP; 1003 nic_dev->cable_unplugged = false; 1004 nic_dev->module_unrecognized = false; 1005 1006 if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) == 1007 (HINIC_LINK_UP | HINIC_INTF_UP)) { 1008 netif_carrier_on(nic_dev->netdev); 1009 netif_tx_wake_all_queues(nic_dev->netdev); 1010 } 1011 1012 up(&nic_dev->mgmt_lock); 1013 1014 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) 1015 hinic_refresh_nic_cfg(nic_dev); 1016 1017 netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is UP\n"); 1018 } else { 1019 down(&nic_dev->mgmt_lock); 1020 1021 nic_dev->flags &= ~HINIC_LINK_UP; 1022 1023 netif_carrier_off(nic_dev->netdev); 1024 netif_tx_disable(nic_dev->netdev); 1025 1026 up(&nic_dev->mgmt_lock); 1027 1028 netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is DOWN\n"); 1029 } 1030 1031 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) 1032 hinic_notify_all_vfs_link_changed(nic_dev->hwdev, 1033 link_status->link); 1034 1035 ret_link_status = buf_out; 1036 ret_link_status->status = 0; 1037 1038 *out_size = sizeof(*ret_link_status); 1039 } 1040 1041 static void cable_plug_event(void *handle, 1042 void *buf_in, u16 in_size, 1043 void *buf_out, u16 *out_size) 1044 { 1045 struct hinic_cable_plug_event *plug_event = buf_in; 1046 struct hinic_dev *nic_dev = handle; 1047 1048 nic_dev->cable_unplugged = plug_event->plugged ? false : true; 1049 1050 *out_size = sizeof(*plug_event); 1051 plug_event = buf_out; 1052 plug_event->status = 0; 1053 } 1054 1055 static void link_err_event(void *handle, 1056 void *buf_in, u16 in_size, 1057 void *buf_out, u16 *out_size) 1058 { 1059 struct hinic_link_err_event *link_err = buf_in; 1060 struct hinic_dev *nic_dev = handle; 1061 1062 if (link_err->err_type >= LINK_ERR_NUM) 1063 netif_info(nic_dev, link, nic_dev->netdev, 1064 "Link failed, Unknown error type: 0x%x\n", 1065 link_err->err_type); 1066 else 1067 nic_dev->module_unrecognized = true; 1068 1069 *out_size = sizeof(*link_err); 1070 link_err = buf_out; 1071 link_err->status = 0; 1072 } 1073 1074 static int set_features(struct hinic_dev *nic_dev, 1075 netdev_features_t pre_features, 1076 netdev_features_t features, bool force_change) 1077 { 1078 netdev_features_t changed = force_change ? ~0 : pre_features ^ features; 1079 u32 csum_en = HINIC_RX_CSUM_OFFLOAD_EN; 1080 netdev_features_t failed_features = 0; 1081 int ret = 0; 1082 int err = 0; 1083 1084 if (changed & NETIF_F_TSO) { 1085 ret = hinic_port_set_tso(nic_dev, (features & NETIF_F_TSO) ? 1086 HINIC_TSO_ENABLE : HINIC_TSO_DISABLE); 1087 if (ret) { 1088 err = ret; 1089 failed_features |= NETIF_F_TSO; 1090 } 1091 } 1092 1093 if (changed & NETIF_F_RXCSUM) { 1094 ret = hinic_set_rx_csum_offload(nic_dev, csum_en); 1095 if (ret) { 1096 err = ret; 1097 failed_features |= NETIF_F_RXCSUM; 1098 } 1099 } 1100 1101 if (changed & NETIF_F_LRO) { 1102 ret = hinic_set_rx_lro_state(nic_dev, 1103 !!(features & NETIF_F_LRO), 1104 HINIC_LRO_RX_TIMER_DEFAULT, 1105 HINIC_LRO_MAX_WQE_NUM_DEFAULT); 1106 if (ret) { 1107 err = ret; 1108 failed_features |= NETIF_F_LRO; 1109 } 1110 } 1111 1112 if (changed & NETIF_F_HW_VLAN_CTAG_RX) { 1113 ret = hinic_set_rx_vlan_offload(nic_dev, 1114 !!(features & 1115 NETIF_F_HW_VLAN_CTAG_RX)); 1116 if (ret) { 1117 err = ret; 1118 failed_features |= NETIF_F_HW_VLAN_CTAG_RX; 1119 } 1120 } 1121 1122 if (err) { 1123 nic_dev->netdev->features = features ^ failed_features; 1124 return -EIO; 1125 } 1126 1127 return 0; 1128 } 1129 1130 static int hinic_init_intr_coalesce(struct hinic_dev *nic_dev) 1131 { 1132 u64 size; 1133 u16 i; 1134 1135 size = sizeof(struct hinic_intr_coal_info) * nic_dev->max_qps; 1136 nic_dev->rx_intr_coalesce = kzalloc(size, GFP_KERNEL); 1137 if (!nic_dev->rx_intr_coalesce) 1138 return -ENOMEM; 1139 nic_dev->tx_intr_coalesce = kzalloc(size, GFP_KERNEL); 1140 if (!nic_dev->tx_intr_coalesce) { 1141 kfree(nic_dev->rx_intr_coalesce); 1142 return -ENOMEM; 1143 } 1144 1145 for (i = 0; i < nic_dev->max_qps; i++) { 1146 nic_dev->rx_intr_coalesce[i].pending_limt = 1147 HINIC_DEAULT_TXRX_MSIX_PENDING_LIMIT; 1148 nic_dev->rx_intr_coalesce[i].coalesce_timer_cfg = 1149 HINIC_DEAULT_TXRX_MSIX_COALESC_TIMER_CFG; 1150 nic_dev->rx_intr_coalesce[i].resend_timer_cfg = 1151 HINIC_DEAULT_TXRX_MSIX_RESEND_TIMER_CFG; 1152 nic_dev->tx_intr_coalesce[i].pending_limt = 1153 HINIC_DEAULT_TXRX_MSIX_PENDING_LIMIT; 1154 nic_dev->tx_intr_coalesce[i].coalesce_timer_cfg = 1155 HINIC_DEAULT_TXRX_MSIX_COALESC_TIMER_CFG; 1156 nic_dev->tx_intr_coalesce[i].resend_timer_cfg = 1157 HINIC_DEAULT_TXRX_MSIX_RESEND_TIMER_CFG; 1158 } 1159 1160 return 0; 1161 } 1162 1163 static void hinic_free_intr_coalesce(struct hinic_dev *nic_dev) 1164 { 1165 kfree(nic_dev->tx_intr_coalesce); 1166 kfree(nic_dev->rx_intr_coalesce); 1167 } 1168 1169 /** 1170 * nic_dev_init - Initialize the NIC device 1171 * @pdev: the NIC pci device 1172 * 1173 * Return 0 - Success, negative - Failure 1174 **/ 1175 static int nic_dev_init(struct pci_dev *pdev) 1176 { 1177 struct hinic_rx_mode_work *rx_mode_work; 1178 struct hinic_txq_stats *tx_stats; 1179 struct hinic_rxq_stats *rx_stats; 1180 struct hinic_dev *nic_dev; 1181 struct net_device *netdev; 1182 struct hinic_hwdev *hwdev; 1183 struct devlink *devlink; 1184 int err, num_qps; 1185 1186 devlink = hinic_devlink_alloc(); 1187 if (!devlink) { 1188 dev_err(&pdev->dev, "Hinic devlink alloc failed\n"); 1189 return -ENOMEM; 1190 } 1191 1192 hwdev = hinic_init_hwdev(pdev, devlink); 1193 if (IS_ERR(hwdev)) { 1194 dev_err(&pdev->dev, "Failed to initialize HW device\n"); 1195 hinic_devlink_free(devlink); 1196 return PTR_ERR(hwdev); 1197 } 1198 1199 num_qps = hinic_hwdev_num_qps(hwdev); 1200 if (num_qps <= 0) { 1201 dev_err(&pdev->dev, "Invalid number of QPS\n"); 1202 err = -EINVAL; 1203 goto err_num_qps; 1204 } 1205 1206 netdev = alloc_etherdev_mq(sizeof(*nic_dev), num_qps); 1207 if (!netdev) { 1208 dev_err(&pdev->dev, "Failed to allocate Ethernet device\n"); 1209 err = -ENOMEM; 1210 goto err_alloc_etherdev; 1211 } 1212 1213 if (!HINIC_IS_VF(hwdev->hwif)) 1214 netdev->netdev_ops = &hinic_netdev_ops; 1215 else 1216 netdev->netdev_ops = &hinicvf_netdev_ops; 1217 1218 netdev->max_mtu = ETH_MAX_MTU; 1219 1220 nic_dev = netdev_priv(netdev); 1221 nic_dev->netdev = netdev; 1222 nic_dev->hwdev = hwdev; 1223 nic_dev->msg_enable = MSG_ENABLE_DEFAULT; 1224 nic_dev->flags = 0; 1225 nic_dev->txqs = NULL; 1226 nic_dev->rxqs = NULL; 1227 nic_dev->tx_weight = tx_weight; 1228 nic_dev->rx_weight = rx_weight; 1229 nic_dev->sq_depth = HINIC_SQ_DEPTH; 1230 nic_dev->rq_depth = HINIC_RQ_DEPTH; 1231 nic_dev->sriov_info.hwdev = hwdev; 1232 nic_dev->sriov_info.pdev = pdev; 1233 nic_dev->max_qps = num_qps; 1234 nic_dev->devlink = devlink; 1235 1236 hinic_set_ethtool_ops(netdev); 1237 1238 sema_init(&nic_dev->mgmt_lock, 1); 1239 1240 tx_stats = &nic_dev->tx_stats; 1241 rx_stats = &nic_dev->rx_stats; 1242 1243 u64_stats_init(&tx_stats->syncp); 1244 u64_stats_init(&rx_stats->syncp); 1245 1246 nic_dev->vlan_bitmap = devm_kzalloc(&pdev->dev, 1247 VLAN_BITMAP_SIZE(nic_dev), 1248 GFP_KERNEL); 1249 if (!nic_dev->vlan_bitmap) { 1250 err = -ENOMEM; 1251 goto err_vlan_bitmap; 1252 } 1253 1254 nic_dev->workq = create_singlethread_workqueue(HINIC_WQ_NAME); 1255 if (!nic_dev->workq) { 1256 err = -ENOMEM; 1257 goto err_workq; 1258 } 1259 1260 pci_set_drvdata(pdev, netdev); 1261 1262 err = hinic_port_get_mac(nic_dev, netdev->dev_addr); 1263 if (err) { 1264 dev_err(&pdev->dev, "Failed to get mac address\n"); 1265 goto err_get_mac; 1266 } 1267 1268 if (!is_valid_ether_addr(netdev->dev_addr)) { 1269 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) { 1270 dev_err(&pdev->dev, "Invalid MAC address\n"); 1271 err = -EIO; 1272 goto err_add_mac; 1273 } 1274 1275 dev_info(&pdev->dev, "Invalid MAC address %pM, using random\n", 1276 netdev->dev_addr); 1277 eth_hw_addr_random(netdev); 1278 } 1279 1280 err = hinic_port_add_mac(nic_dev, netdev->dev_addr, 0); 1281 if (err && err != HINIC_PF_SET_VF_ALREADY) { 1282 dev_err(&pdev->dev, "Failed to add mac\n"); 1283 goto err_add_mac; 1284 } 1285 1286 err = hinic_port_set_mtu(nic_dev, netdev->mtu); 1287 if (err) { 1288 dev_err(&pdev->dev, "Failed to set mtu\n"); 1289 goto err_set_mtu; 1290 } 1291 1292 rx_mode_work = &nic_dev->rx_mode_work; 1293 INIT_WORK(&rx_mode_work->work, set_rx_mode); 1294 1295 netdev_features_init(netdev); 1296 1297 netif_carrier_off(netdev); 1298 1299 hinic_hwdev_cb_register(nic_dev->hwdev, HINIC_MGMT_MSG_CMD_LINK_STATUS, 1300 nic_dev, link_status_event_handler); 1301 hinic_hwdev_cb_register(nic_dev->hwdev, 1302 HINIC_MGMT_MSG_CMD_CABLE_PLUG_EVENT, 1303 nic_dev, cable_plug_event); 1304 hinic_hwdev_cb_register(nic_dev->hwdev, 1305 HINIC_MGMT_MSG_CMD_LINK_ERR_EVENT, 1306 nic_dev, link_err_event); 1307 1308 err = set_features(nic_dev, 0, nic_dev->netdev->features, true); 1309 if (err) 1310 goto err_set_features; 1311 1312 /* enable pause and disable pfc by default */ 1313 err = hinic_dcb_set_pfc(nic_dev->hwdev, 0, 0); 1314 if (err) 1315 goto err_set_pfc; 1316 1317 SET_NETDEV_DEV(netdev, &pdev->dev); 1318 1319 err = hinic_init_intr_coalesce(nic_dev); 1320 if (err) { 1321 dev_err(&pdev->dev, "Failed to init_intr_coalesce\n"); 1322 goto err_init_intr; 1323 } 1324 1325 hinic_dbg_init(nic_dev); 1326 1327 hinic_func_tbl_dbgfs_init(nic_dev); 1328 1329 err = hinic_func_table_debug_add(nic_dev); 1330 if (err) { 1331 dev_err(&pdev->dev, "Failed to add func_table debug\n"); 1332 goto err_add_func_table_dbg; 1333 } 1334 1335 err = register_netdev(netdev); 1336 if (err) { 1337 dev_err(&pdev->dev, "Failed to register netdev\n"); 1338 goto err_reg_netdev; 1339 } 1340 1341 return 0; 1342 1343 err_reg_netdev: 1344 hinic_func_table_debug_rem(nic_dev); 1345 err_add_func_table_dbg: 1346 hinic_func_tbl_dbgfs_uninit(nic_dev); 1347 hinic_dbg_uninit(nic_dev); 1348 hinic_free_intr_coalesce(nic_dev); 1349 err_init_intr: 1350 err_set_pfc: 1351 err_set_features: 1352 hinic_hwdev_cb_unregister(nic_dev->hwdev, 1353 HINIC_MGMT_MSG_CMD_LINK_ERR_EVENT); 1354 hinic_hwdev_cb_unregister(nic_dev->hwdev, 1355 HINIC_MGMT_MSG_CMD_CABLE_PLUG_EVENT); 1356 hinic_hwdev_cb_unregister(nic_dev->hwdev, 1357 HINIC_MGMT_MSG_CMD_LINK_STATUS); 1358 cancel_work_sync(&rx_mode_work->work); 1359 1360 err_set_mtu: 1361 hinic_port_del_mac(nic_dev, netdev->dev_addr, 0); 1362 err_add_mac: 1363 err_get_mac: 1364 pci_set_drvdata(pdev, NULL); 1365 destroy_workqueue(nic_dev->workq); 1366 err_workq: 1367 err_vlan_bitmap: 1368 free_netdev(netdev); 1369 1370 err_alloc_etherdev: 1371 err_num_qps: 1372 hinic_free_hwdev(hwdev); 1373 hinic_devlink_free(devlink); 1374 return err; 1375 } 1376 1377 static int hinic_probe(struct pci_dev *pdev, 1378 const struct pci_device_id *id) 1379 { 1380 int err = pci_enable_device(pdev); 1381 1382 if (err) { 1383 dev_err(&pdev->dev, "Failed to enable PCI device\n"); 1384 return err; 1385 } 1386 1387 err = pci_request_regions(pdev, HINIC_DRV_NAME); 1388 if (err) { 1389 dev_err(&pdev->dev, "Failed to request PCI regions\n"); 1390 goto err_pci_regions; 1391 } 1392 1393 pci_set_master(pdev); 1394 1395 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); 1396 if (err) { 1397 dev_warn(&pdev->dev, "Couldn't set 64-bit DMA mask\n"); 1398 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 1399 if (err) { 1400 dev_err(&pdev->dev, "Failed to set DMA mask\n"); 1401 goto err_dma_mask; 1402 } 1403 } 1404 1405 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); 1406 if (err) { 1407 dev_warn(&pdev->dev, 1408 "Couldn't set 64-bit consistent DMA mask\n"); 1409 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); 1410 if (err) { 1411 dev_err(&pdev->dev, 1412 "Failed to set consistent DMA mask\n"); 1413 goto err_dma_consistent_mask; 1414 } 1415 } 1416 1417 err = nic_dev_init(pdev); 1418 if (err) { 1419 dev_err(&pdev->dev, "Failed to initialize NIC device\n"); 1420 goto err_nic_dev_init; 1421 } 1422 1423 dev_info(&pdev->dev, "HiNIC driver - probed\n"); 1424 return 0; 1425 1426 err_nic_dev_init: 1427 err_dma_consistent_mask: 1428 err_dma_mask: 1429 pci_release_regions(pdev); 1430 1431 err_pci_regions: 1432 pci_disable_device(pdev); 1433 return err; 1434 } 1435 1436 #define HINIC_WAIT_SRIOV_CFG_TIMEOUT 15000 1437 1438 static void wait_sriov_cfg_complete(struct hinic_dev *nic_dev) 1439 { 1440 struct hinic_sriov_info *sriov_info = &nic_dev->sriov_info; 1441 u32 loop_cnt = 0; 1442 1443 set_bit(HINIC_FUNC_REMOVE, &sriov_info->state); 1444 usleep_range(9900, 10000); 1445 1446 while (loop_cnt < HINIC_WAIT_SRIOV_CFG_TIMEOUT) { 1447 if (!test_bit(HINIC_SRIOV_ENABLE, &sriov_info->state) && 1448 !test_bit(HINIC_SRIOV_DISABLE, &sriov_info->state)) 1449 return; 1450 1451 usleep_range(9900, 10000); 1452 loop_cnt++; 1453 } 1454 } 1455 1456 static void hinic_remove(struct pci_dev *pdev) 1457 { 1458 struct net_device *netdev = pci_get_drvdata(pdev); 1459 struct hinic_dev *nic_dev = netdev_priv(netdev); 1460 struct devlink *devlink = nic_dev->devlink; 1461 struct hinic_rx_mode_work *rx_mode_work; 1462 1463 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) { 1464 wait_sriov_cfg_complete(nic_dev); 1465 hinic_pci_sriov_disable(pdev); 1466 } 1467 1468 unregister_netdev(netdev); 1469 1470 hinic_func_table_debug_rem(nic_dev); 1471 1472 hinic_func_tbl_dbgfs_uninit(nic_dev); 1473 1474 hinic_dbg_uninit(nic_dev); 1475 1476 hinic_free_intr_coalesce(nic_dev); 1477 1478 hinic_port_del_mac(nic_dev, netdev->dev_addr, 0); 1479 1480 hinic_hwdev_cb_unregister(nic_dev->hwdev, 1481 HINIC_MGMT_MSG_CMD_LINK_ERR_EVENT); 1482 hinic_hwdev_cb_unregister(nic_dev->hwdev, 1483 HINIC_MGMT_MSG_CMD_CABLE_PLUG_EVENT); 1484 hinic_hwdev_cb_unregister(nic_dev->hwdev, 1485 HINIC_MGMT_MSG_CMD_LINK_STATUS); 1486 1487 rx_mode_work = &nic_dev->rx_mode_work; 1488 cancel_work_sync(&rx_mode_work->work); 1489 1490 pci_set_drvdata(pdev, NULL); 1491 1492 destroy_workqueue(nic_dev->workq); 1493 1494 hinic_free_hwdev(nic_dev->hwdev); 1495 1496 free_netdev(netdev); 1497 1498 hinic_devlink_free(devlink); 1499 1500 pci_release_regions(pdev); 1501 pci_disable_device(pdev); 1502 1503 dev_info(&pdev->dev, "HiNIC driver - removed\n"); 1504 } 1505 1506 static void hinic_shutdown(struct pci_dev *pdev) 1507 { 1508 pci_disable_device(pdev); 1509 } 1510 1511 static const struct pci_device_id hinic_pci_table[] = { 1512 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_QUAD_PORT_25GE), 0}, 1513 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_100GE), 0}, 1514 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_100GE_MEZZ), 0}, 1515 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_QUAD_PORT_25GE_MEZZ), 0}, 1516 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_VF), 0}, 1517 { 0, 0} 1518 }; 1519 MODULE_DEVICE_TABLE(pci, hinic_pci_table); 1520 1521 static struct pci_driver hinic_driver = { 1522 .name = HINIC_DRV_NAME, 1523 .id_table = hinic_pci_table, 1524 .probe = hinic_probe, 1525 .remove = hinic_remove, 1526 .shutdown = hinic_shutdown, 1527 .sriov_configure = hinic_pci_sriov_configure, 1528 }; 1529 1530 static int __init hinic_module_init(void) 1531 { 1532 hinic_dbg_register_debugfs(HINIC_DRV_NAME); 1533 return pci_register_driver(&hinic_driver); 1534 } 1535 1536 static void __exit hinic_module_exit(void) 1537 { 1538 pci_unregister_driver(&hinic_driver); 1539 hinic_dbg_unregister_debugfs(); 1540 } 1541 1542 module_init(hinic_module_init); 1543 module_exit(hinic_module_exit); 1544