1 /* 2 * QLogic qlcnic NIC Driver 3 * Copyright (c) 2009-2010 QLogic Corporation 4 * 5 * See LICENSE.qlcnic for copyright and licensing details. 6 */ 7 8 #include <linux/slab.h> 9 #include <linux/vmalloc.h> 10 #include <linux/interrupt.h> 11 12 #include "qlcnic.h" 13 14 #include <linux/swab.h> 15 #include <linux/dma-mapping.h> 16 #include <net/ip.h> 17 #include <linux/ipv6.h> 18 #include <linux/inetdevice.h> 19 #include <linux/sysfs.h> 20 #include <linux/aer.h> 21 #include <linux/log2.h> 22 23 MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver"); 24 MODULE_LICENSE("GPL"); 25 MODULE_VERSION(QLCNIC_LINUX_VERSIONID); 26 MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME); 27 28 char qlcnic_driver_name[] = "qlcnic"; 29 static const char qlcnic_driver_string[] = "QLogic 1/10 GbE " 30 "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID; 31 32 static struct workqueue_struct *qlcnic_wq; 33 static int qlcnic_mac_learn; 34 module_param(qlcnic_mac_learn, int, 0444); 35 MODULE_PARM_DESC(qlcnic_mac_learn, "Mac Filter (0=disabled, 1=enabled)"); 36 37 static int qlcnic_use_msi = 1; 38 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled"); 39 module_param_named(use_msi, qlcnic_use_msi, int, 0444); 40 41 static int qlcnic_use_msi_x = 1; 42 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled"); 43 module_param_named(use_msi_x, qlcnic_use_msi_x, int, 0444); 44 45 static int qlcnic_auto_fw_reset = 1; 46 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled"); 47 module_param_named(auto_fw_reset, qlcnic_auto_fw_reset, int, 0644); 48 49 static int qlcnic_load_fw_file; 50 MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file"); 51 module_param_named(load_fw_file, qlcnic_load_fw_file, int, 0444); 52 53 static int qlcnic_config_npars; 54 module_param(qlcnic_config_npars, int, 0444); 55 MODULE_PARM_DESC(qlcnic_config_npars, "Configure NPARs (0=disabled, 1=enabled"); 56 57 static int qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent); 58 static void qlcnic_remove(struct pci_dev *pdev); 59 static int qlcnic_open(struct net_device *netdev); 60 static int qlcnic_close(struct net_device *netdev); 61 static void qlcnic_tx_timeout(struct net_device *netdev); 62 static void qlcnic_attach_work(struct work_struct *work); 63 static void qlcnic_fwinit_work(struct work_struct *work); 64 static void qlcnic_fw_poll_work(struct work_struct *work); 65 static void qlcnic_schedule_work(struct qlcnic_adapter *adapter, 66 work_func_t func, int delay); 67 static void qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter); 68 #ifdef CONFIG_NET_POLL_CONTROLLER 69 static void qlcnic_poll_controller(struct net_device *netdev); 70 #endif 71 72 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding); 73 static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8); 74 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter); 75 76 static irqreturn_t qlcnic_tmp_intr(int irq, void *data); 77 static irqreturn_t qlcnic_intr(int irq, void *data); 78 static irqreturn_t qlcnic_msi_intr(int irq, void *data); 79 static irqreturn_t qlcnic_msix_intr(int irq, void *data); 80 81 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev); 82 static void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long); 83 static int qlcnic_start_firmware(struct qlcnic_adapter *); 84 85 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter); 86 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *); 87 static int qlcnicvf_start_firmware(struct qlcnic_adapter *); 88 static void qlcnic_set_netdev_features(struct qlcnic_adapter *, 89 struct qlcnic_esw_func_cfg *); 90 static int qlcnic_vlan_rx_add(struct net_device *, u16); 91 static int qlcnic_vlan_rx_del(struct net_device *, u16); 92 93 #define QLCNIC_IS_TSO_CAPABLE(adapter) \ 94 ((adapter)->ahw->capabilities & QLCNIC_FW_CAPABILITY_TSO) 95 96 /* PCI Device ID Table */ 97 #define ENTRY(device) \ 98 {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \ 99 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0} 100 101 #define PCI_DEVICE_ID_QLOGIC_QLE824X 0x8020 102 103 static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = { 104 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X), 105 {0,} 106 }; 107 108 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl); 109 110 111 inline void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *tx_ring) 112 { 113 writel(tx_ring->producer, tx_ring->crb_cmd_producer); 114 } 115 116 static const u32 msi_tgt_status[8] = { 117 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1, 118 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3, 119 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5, 120 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7 121 }; 122 123 static const struct qlcnic_board_info qlcnic_boards[] = { 124 {0x1077, 0x8020, 0x1077, 0x203, 125 "8200 Series Single Port 10GbE Converged Network Adapter" 126 "(TCP/IP Networking)"}, 127 {0x1077, 0x8020, 0x1077, 0x207, 128 "8200 Series Dual Port 10GbE Converged Network Adapter" 129 "(TCP/IP Networking)"}, 130 {0x1077, 0x8020, 0x1077, 0x20b, 131 "3200 Series Dual Port 10Gb Intelligent Ethernet Adapter"}, 132 {0x1077, 0x8020, 0x1077, 0x20c, 133 "3200 Series Quad Port 1Gb Intelligent Ethernet Adapter"}, 134 {0x1077, 0x8020, 0x1077, 0x20f, 135 "3200 Series Single Port 10Gb Intelligent Ethernet Adapter"}, 136 {0x1077, 0x8020, 0x103c, 0x3733, 137 "NC523SFP 10Gb 2-port Server Adapter"}, 138 {0x1077, 0x8020, 0x103c, 0x3346, 139 "CN1000Q Dual Port Converged Network Adapter"}, 140 {0x1077, 0x8020, 0x1077, 0x210, 141 "QME8242-k 10GbE Dual Port Mezzanine Card"}, 142 {0x1077, 0x8020, 0x0, 0x0, "cLOM8214 1/10GbE Controller"}, 143 }; 144 145 #define NUM_SUPPORTED_BOARDS ARRAY_SIZE(qlcnic_boards) 146 147 static const 148 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG; 149 150 int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count) 151 { 152 int size = sizeof(struct qlcnic_host_sds_ring) * count; 153 154 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL); 155 156 return recv_ctx->sds_rings == NULL; 157 } 158 159 void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx) 160 { 161 if (recv_ctx->sds_rings != NULL) 162 kfree(recv_ctx->sds_rings); 163 164 recv_ctx->sds_rings = NULL; 165 } 166 167 static void qlcnic_clear_stats(struct qlcnic_adapter *adapter) 168 { 169 memset(&adapter->stats, 0, sizeof(adapter->stats)); 170 } 171 172 static void qlcnic_set_msix_bit(struct pci_dev *pdev, int enable) 173 { 174 u32 control; 175 int pos; 176 177 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX); 178 if (pos) { 179 pci_read_config_dword(pdev, pos, &control); 180 if (enable) 181 control |= PCI_MSIX_FLAGS_ENABLE; 182 else 183 control = 0; 184 pci_write_config_dword(pdev, pos, control); 185 } 186 } 187 188 static void qlcnic_init_msix_entries(struct qlcnic_adapter *adapter, int count) 189 { 190 int i; 191 192 for (i = 0; i < count; i++) 193 adapter->msix_entries[i].entry = i; 194 } 195 196 static int 197 qlcnic_read_mac_addr(struct qlcnic_adapter *adapter) 198 { 199 u8 mac_addr[ETH_ALEN]; 200 struct net_device *netdev = adapter->netdev; 201 struct pci_dev *pdev = adapter->pdev; 202 203 if (qlcnic_get_mac_address(adapter, mac_addr) != 0) 204 return -EIO; 205 206 memcpy(netdev->dev_addr, mac_addr, ETH_ALEN); 207 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len); 208 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len); 209 210 /* set station address */ 211 212 if (!is_valid_ether_addr(netdev->perm_addr)) 213 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", 214 netdev->dev_addr); 215 216 return 0; 217 } 218 219 static int qlcnic_set_mac(struct net_device *netdev, void *p) 220 { 221 struct qlcnic_adapter *adapter = netdev_priv(netdev); 222 struct sockaddr *addr = p; 223 224 if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED)) 225 return -EOPNOTSUPP; 226 227 if (!is_valid_ether_addr(addr->sa_data)) 228 return -EADDRNOTAVAIL; 229 230 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) { 231 netif_device_detach(netdev); 232 qlcnic_napi_disable(adapter); 233 } 234 235 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len); 236 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); 237 qlcnic_set_multi(adapter->netdev); 238 239 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) { 240 netif_device_attach(netdev); 241 qlcnic_napi_enable(adapter); 242 } 243 return 0; 244 } 245 246 static const struct net_device_ops qlcnic_netdev_ops = { 247 .ndo_open = qlcnic_open, 248 .ndo_stop = qlcnic_close, 249 .ndo_start_xmit = qlcnic_xmit_frame, 250 .ndo_get_stats = qlcnic_get_stats, 251 .ndo_validate_addr = eth_validate_addr, 252 .ndo_set_rx_mode = qlcnic_set_multi, 253 .ndo_set_mac_address = qlcnic_set_mac, 254 .ndo_change_mtu = qlcnic_change_mtu, 255 .ndo_fix_features = qlcnic_fix_features, 256 .ndo_set_features = qlcnic_set_features, 257 .ndo_tx_timeout = qlcnic_tx_timeout, 258 .ndo_vlan_rx_add_vid = qlcnic_vlan_rx_add, 259 .ndo_vlan_rx_kill_vid = qlcnic_vlan_rx_del, 260 #ifdef CONFIG_NET_POLL_CONTROLLER 261 .ndo_poll_controller = qlcnic_poll_controller, 262 #endif 263 }; 264 265 static const struct net_device_ops qlcnic_netdev_failed_ops = { 266 .ndo_open = qlcnic_open, 267 }; 268 269 static struct qlcnic_nic_template qlcnic_ops = { 270 .config_bridged_mode = qlcnic_config_bridged_mode, 271 .config_led = qlcnic_config_led, 272 .start_firmware = qlcnic_start_firmware 273 }; 274 275 static struct qlcnic_nic_template qlcnic_vf_ops = { 276 .config_bridged_mode = qlcnicvf_config_bridged_mode, 277 .config_led = qlcnicvf_config_led, 278 .start_firmware = qlcnicvf_start_firmware 279 }; 280 281 static int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix) 282 { 283 struct pci_dev *pdev = adapter->pdev; 284 int err = -1; 285 286 adapter->max_sds_rings = 1; 287 adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED); 288 qlcnic_set_msix_bit(pdev, 0); 289 290 if (adapter->ahw->msix_supported) { 291 enable_msix: 292 qlcnic_init_msix_entries(adapter, num_msix); 293 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix); 294 if (err == 0) { 295 adapter->flags |= QLCNIC_MSIX_ENABLED; 296 qlcnic_set_msix_bit(pdev, 1); 297 298 adapter->max_sds_rings = num_msix; 299 300 dev_info(&pdev->dev, "using msi-x interrupts\n"); 301 return err; 302 } 303 if (err > 0) { 304 num_msix = rounddown_pow_of_two(err); 305 if (num_msix) 306 goto enable_msix; 307 } 308 } 309 return err; 310 } 311 312 static void qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter) 313 { 314 u32 offset, mask_reg; 315 const struct qlcnic_legacy_intr_set *legacy_intrp; 316 struct qlcnic_hardware_context *ahw = adapter->ahw; 317 struct pci_dev *pdev = adapter->pdev; 318 319 if (qlcnic_use_msi && !pci_enable_msi(pdev)) { 320 adapter->flags |= QLCNIC_MSI_ENABLED; 321 offset = msi_tgt_status[adapter->ahw->pci_func]; 322 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw, 323 offset); 324 dev_info(&pdev->dev, "using msi interrupts\n"); 325 adapter->msix_entries[0].vector = pdev->irq; 326 return; 327 } 328 329 legacy_intrp = &legacy_intr[adapter->ahw->pci_func]; 330 adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit; 331 offset = legacy_intrp->tgt_status_reg; 332 adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset); 333 mask_reg = legacy_intrp->tgt_mask_reg; 334 adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg); 335 adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR); 336 adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG); 337 dev_info(&pdev->dev, "using legacy interrupts\n"); 338 adapter->msix_entries[0].vector = pdev->irq; 339 } 340 341 static void 342 qlcnic_setup_intr(struct qlcnic_adapter *adapter) 343 { 344 int num_msix; 345 346 if (adapter->ahw->msix_supported) { 347 num_msix = rounddown_pow_of_two(min_t(int, num_online_cpus(), 348 QLCNIC_DEF_NUM_STS_DESC_RINGS)); 349 } else 350 num_msix = 1; 351 352 if (!qlcnic_enable_msix(adapter, num_msix)) 353 return; 354 355 qlcnic_enable_msi_legacy(adapter); 356 } 357 358 static void 359 qlcnic_teardown_intr(struct qlcnic_adapter *adapter) 360 { 361 if (adapter->flags & QLCNIC_MSIX_ENABLED) 362 pci_disable_msix(adapter->pdev); 363 if (adapter->flags & QLCNIC_MSI_ENABLED) 364 pci_disable_msi(adapter->pdev); 365 } 366 367 static void 368 qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter) 369 { 370 if (adapter->ahw->pci_base0 != NULL) 371 iounmap(adapter->ahw->pci_base0); 372 } 373 374 static int qlcnic_init_pci_info(struct qlcnic_adapter *adapter) 375 { 376 struct qlcnic_pci_info *pci_info; 377 int i, ret = 0, j = 0; 378 u16 act_pci_func; 379 u8 pfn; 380 381 pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL); 382 if (!pci_info) 383 return -ENOMEM; 384 385 ret = qlcnic_get_pci_info(adapter, pci_info); 386 if (ret) 387 goto err_pci_info; 388 389 act_pci_func = adapter->ahw->act_pci_func; 390 391 adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) * 392 act_pci_func, GFP_KERNEL); 393 if (!adapter->npars) { 394 ret = -ENOMEM; 395 goto err_pci_info; 396 } 397 398 adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) * 399 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL); 400 if (!adapter->eswitch) { 401 ret = -ENOMEM; 402 goto err_npars; 403 } 404 405 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) { 406 pfn = pci_info[i].id; 407 408 if (pfn >= QLCNIC_MAX_PCI_FUNC) { 409 ret = QL_STATUS_INVALID_PARAM; 410 goto err_eswitch; 411 } 412 413 if (!pci_info[i].active || 414 (pci_info[i].type != QLCNIC_TYPE_NIC)) 415 continue; 416 417 adapter->npars[j].pci_func = pfn; 418 adapter->npars[j].active = (u8)pci_info[i].active; 419 adapter->npars[j].type = (u8)pci_info[i].type; 420 adapter->npars[j].phy_port = (u8)pci_info[i].default_port; 421 adapter->npars[j].min_bw = pci_info[i].tx_min_bw; 422 adapter->npars[j].max_bw = pci_info[i].tx_max_bw; 423 j++; 424 } 425 426 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++) 427 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE; 428 429 kfree(pci_info); 430 return 0; 431 432 err_eswitch: 433 kfree(adapter->eswitch); 434 adapter->eswitch = NULL; 435 err_npars: 436 kfree(adapter->npars); 437 adapter->npars = NULL; 438 err_pci_info: 439 kfree(pci_info); 440 441 return ret; 442 } 443 444 static int 445 qlcnic_set_function_modes(struct qlcnic_adapter *adapter) 446 { 447 u8 id; 448 int i, ret = 1; 449 u32 data = QLCNIC_MGMT_FUNC; 450 struct qlcnic_hardware_context *ahw = adapter->ahw; 451 452 ret = qlcnic_api_lock(adapter); 453 if (ret) 454 goto err_lock; 455 456 if (qlcnic_config_npars) { 457 for (i = 0; i < ahw->act_pci_func; i++) { 458 id = adapter->npars[i].pci_func; 459 if (id == ahw->pci_func) 460 continue; 461 data |= (qlcnic_config_npars & 462 QLC_DEV_SET_DRV(0xf, id)); 463 } 464 } else { 465 data = QLCRD32(adapter, QLCNIC_DRV_OP_MODE); 466 data = (data & ~QLC_DEV_SET_DRV(0xf, ahw->pci_func)) | 467 (QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, 468 ahw->pci_func)); 469 } 470 QLCWR32(adapter, QLCNIC_DRV_OP_MODE, data); 471 qlcnic_api_unlock(adapter); 472 err_lock: 473 return ret; 474 } 475 476 static void 477 qlcnic_check_vf(struct qlcnic_adapter *adapter) 478 { 479 void __iomem *msix_base_addr; 480 void __iomem *priv_op; 481 u32 func; 482 u32 msix_base; 483 u32 op_mode, priv_level; 484 485 /* Determine FW API version */ 486 adapter->ahw->fw_hal_version = readl(adapter->ahw->pci_base0 + 487 QLCNIC_FW_API); 488 489 /* Find PCI function number */ 490 pci_read_config_dword(adapter->pdev, QLCNIC_MSIX_TABLE_OFFSET, &func); 491 msix_base_addr = adapter->ahw->pci_base0 + QLCNIC_MSIX_BASE; 492 msix_base = readl(msix_base_addr); 493 func = (func - msix_base)/QLCNIC_MSIX_TBL_PGSIZE; 494 adapter->ahw->pci_func = func; 495 496 /* Determine function privilege level */ 497 priv_op = adapter->ahw->pci_base0 + QLCNIC_DRV_OP_MODE; 498 op_mode = readl(priv_op); 499 if (op_mode == QLC_DEV_DRV_DEFAULT) 500 priv_level = QLCNIC_MGMT_FUNC; 501 else 502 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func); 503 504 if (priv_level == QLCNIC_NON_PRIV_FUNC) { 505 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC; 506 dev_info(&adapter->pdev->dev, 507 "HAL Version: %d Non Privileged function\n", 508 adapter->ahw->fw_hal_version); 509 adapter->nic_ops = &qlcnic_vf_ops; 510 } else 511 adapter->nic_ops = &qlcnic_ops; 512 } 513 514 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL 515 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar) 516 { 517 switch (dev_id) { 518 case PCI_DEVICE_ID_QLOGIC_QLE824X: 519 *bar = QLCNIC_82XX_BAR0_LENGTH; 520 break; 521 default: 522 *bar = 0; 523 } 524 } 525 526 static int qlcnic_setup_pci_map(struct pci_dev *pdev, 527 struct qlcnic_hardware_context *ahw) 528 { 529 u32 offset; 530 void __iomem *mem_ptr0 = NULL; 531 unsigned long mem_len, pci_len0 = 0, bar0_len; 532 533 /* remap phys address */ 534 mem_len = pci_resource_len(pdev, 0); 535 536 qlcnic_get_bar_length(pdev->device, &bar0_len); 537 if (mem_len >= bar0_len) { 538 539 mem_ptr0 = pci_ioremap_bar(pdev, 0); 540 if (mem_ptr0 == NULL) { 541 dev_err(&pdev->dev, "failed to map PCI bar 0\n"); 542 return -EIO; 543 } 544 pci_len0 = mem_len; 545 } else { 546 return -EIO; 547 } 548 549 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20)); 550 ahw->pci_base0 = mem_ptr0; 551 ahw->pci_len0 = pci_len0; 552 offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func)); 553 qlcnic_get_ioaddr(ahw, offset); 554 555 return 0; 556 } 557 558 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name) 559 { 560 struct pci_dev *pdev = adapter->pdev; 561 int i, found = 0; 562 563 for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) { 564 if (qlcnic_boards[i].vendor == pdev->vendor && 565 qlcnic_boards[i].device == pdev->device && 566 qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor && 567 qlcnic_boards[i].sub_device == pdev->subsystem_device) { 568 sprintf(name, "%pM: %s" , 569 adapter->mac_addr, 570 qlcnic_boards[i].short_name); 571 found = 1; 572 break; 573 } 574 575 } 576 577 if (!found) 578 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr); 579 } 580 581 static void 582 qlcnic_check_options(struct qlcnic_adapter *adapter) 583 { 584 u32 fw_major, fw_minor, fw_build, prev_fw_version; 585 struct pci_dev *pdev = adapter->pdev; 586 struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump; 587 588 prev_fw_version = adapter->fw_version; 589 590 fw_major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR); 591 fw_minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR); 592 fw_build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB); 593 594 adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build); 595 596 if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC) { 597 if (fw_dump->tmpl_hdr == NULL || 598 adapter->fw_version > prev_fw_version) { 599 if (fw_dump->tmpl_hdr) 600 vfree(fw_dump->tmpl_hdr); 601 if (!qlcnic_fw_cmd_get_minidump_temp(adapter)) 602 dev_info(&pdev->dev, 603 "Supports FW dump capability\n"); 604 } 605 } 606 607 dev_info(&pdev->dev, "firmware v%d.%d.%d\n", 608 fw_major, fw_minor, fw_build); 609 if (adapter->ahw->port_type == QLCNIC_XGBE) { 610 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) { 611 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF; 612 adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF; 613 } else { 614 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G; 615 adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G; 616 } 617 618 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G; 619 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G; 620 621 } else if (adapter->ahw->port_type == QLCNIC_GBE) { 622 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G; 623 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G; 624 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G; 625 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G; 626 } 627 628 adapter->ahw->msix_supported = !!qlcnic_use_msi_x; 629 630 adapter->num_txd = MAX_CMD_DESCRIPTORS; 631 632 adapter->max_rds_rings = MAX_RDS_RINGS; 633 } 634 635 static int 636 qlcnic_initialize_nic(struct qlcnic_adapter *adapter) 637 { 638 int err; 639 struct qlcnic_info nic_info; 640 641 memset(&nic_info, 0, sizeof(struct qlcnic_info)); 642 err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func); 643 if (err) 644 return err; 645 646 adapter->ahw->physical_port = (u8)nic_info.phys_port; 647 adapter->ahw->switch_mode = nic_info.switch_mode; 648 adapter->ahw->max_tx_ques = nic_info.max_tx_ques; 649 adapter->ahw->max_rx_ques = nic_info.max_rx_ques; 650 adapter->ahw->capabilities = nic_info.capabilities; 651 adapter->ahw->max_mac_filters = nic_info.max_mac_filters; 652 adapter->ahw->max_mtu = nic_info.max_mtu; 653 654 if (adapter->ahw->capabilities & BIT_6) 655 adapter->flags |= QLCNIC_ESWITCH_ENABLED; 656 else 657 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED; 658 659 return err; 660 } 661 662 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter, 663 struct qlcnic_esw_func_cfg *esw_cfg) 664 { 665 if (esw_cfg->discard_tagged) 666 adapter->flags &= ~QLCNIC_TAGGING_ENABLED; 667 else 668 adapter->flags |= QLCNIC_TAGGING_ENABLED; 669 670 if (esw_cfg->vlan_id) 671 adapter->pvid = esw_cfg->vlan_id; 672 else 673 adapter->pvid = 0; 674 } 675 676 static int 677 qlcnic_vlan_rx_add(struct net_device *netdev, u16 vid) 678 { 679 struct qlcnic_adapter *adapter = netdev_priv(netdev); 680 set_bit(vid, adapter->vlans); 681 return 0; 682 } 683 684 static int 685 qlcnic_vlan_rx_del(struct net_device *netdev, u16 vid) 686 { 687 struct qlcnic_adapter *adapter = netdev_priv(netdev); 688 689 qlcnic_restore_indev_addr(netdev, NETDEV_DOWN); 690 clear_bit(vid, adapter->vlans); 691 return 0; 692 } 693 694 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter, 695 struct qlcnic_esw_func_cfg *esw_cfg) 696 { 697 adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED | 698 QLCNIC_PROMISC_DISABLED); 699 700 if (esw_cfg->mac_anti_spoof) 701 adapter->flags |= QLCNIC_MACSPOOF; 702 703 if (!esw_cfg->mac_override) 704 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED; 705 706 if (!esw_cfg->promisc_mode) 707 adapter->flags |= QLCNIC_PROMISC_DISABLED; 708 709 qlcnic_set_netdev_features(adapter, esw_cfg); 710 } 711 712 static int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter) 713 { 714 struct qlcnic_esw_func_cfg esw_cfg; 715 716 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) 717 return 0; 718 719 esw_cfg.pci_func = adapter->ahw->pci_func; 720 if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg)) 721 return -EIO; 722 qlcnic_set_vlan_config(adapter, &esw_cfg); 723 qlcnic_set_eswitch_port_features(adapter, &esw_cfg); 724 725 return 0; 726 } 727 728 static void 729 qlcnic_set_netdev_features(struct qlcnic_adapter *adapter, 730 struct qlcnic_esw_func_cfg *esw_cfg) 731 { 732 struct net_device *netdev = adapter->netdev; 733 netdev_features_t features, vlan_features; 734 735 features = (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM | 736 NETIF_F_IPV6_CSUM | NETIF_F_GRO); 737 vlan_features = (NETIF_F_SG | NETIF_F_IP_CSUM | 738 NETIF_F_IPV6_CSUM | NETIF_F_HW_VLAN_FILTER); 739 740 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_TSO) { 741 features |= (NETIF_F_TSO | NETIF_F_TSO6); 742 vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6); 743 } 744 745 if (netdev->features & NETIF_F_LRO) 746 features |= NETIF_F_LRO; 747 748 if (esw_cfg->offload_flags & BIT_0) { 749 netdev->features |= features; 750 if (!(esw_cfg->offload_flags & BIT_1)) 751 netdev->features &= ~NETIF_F_TSO; 752 if (!(esw_cfg->offload_flags & BIT_2)) 753 netdev->features &= ~NETIF_F_TSO6; 754 } else { 755 netdev->features &= ~features; 756 } 757 758 netdev->vlan_features = (features & vlan_features); 759 } 760 761 static int 762 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter) 763 { 764 void __iomem *priv_op; 765 u32 op_mode, priv_level; 766 int err = 0; 767 768 err = qlcnic_initialize_nic(adapter); 769 if (err) 770 return err; 771 772 if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED) 773 return 0; 774 775 priv_op = adapter->ahw->pci_base0 + QLCNIC_DRV_OP_MODE; 776 op_mode = readl(priv_op); 777 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func); 778 779 if (op_mode == QLC_DEV_DRV_DEFAULT) 780 priv_level = QLCNIC_MGMT_FUNC; 781 else 782 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func); 783 784 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) { 785 if (priv_level == QLCNIC_MGMT_FUNC) { 786 adapter->ahw->op_mode = QLCNIC_MGMT_FUNC; 787 err = qlcnic_init_pci_info(adapter); 788 if (err) 789 return err; 790 /* Set privilege level for other functions */ 791 qlcnic_set_function_modes(adapter); 792 dev_info(&adapter->pdev->dev, 793 "HAL Version: %d, Management function\n", 794 adapter->ahw->fw_hal_version); 795 } else if (priv_level == QLCNIC_PRIV_FUNC) { 796 adapter->ahw->op_mode = QLCNIC_PRIV_FUNC; 797 dev_info(&adapter->pdev->dev, 798 "HAL Version: %d, Privileged function\n", 799 adapter->ahw->fw_hal_version); 800 } 801 } 802 803 adapter->flags |= QLCNIC_ADAPTER_INITIALIZED; 804 805 return err; 806 } 807 808 static int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter) 809 { 810 struct qlcnic_esw_func_cfg esw_cfg; 811 struct qlcnic_npar_info *npar; 812 u8 i; 813 814 if (adapter->need_fw_reset) 815 return 0; 816 817 for (i = 0; i < adapter->ahw->act_pci_func; i++) { 818 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg)); 819 esw_cfg.pci_func = adapter->npars[i].pci_func; 820 esw_cfg.mac_override = BIT_0; 821 esw_cfg.promisc_mode = BIT_0; 822 if (qlcnic_82xx_check(adapter)) { 823 esw_cfg.offload_flags = BIT_0; 824 if (QLCNIC_IS_TSO_CAPABLE(adapter)) 825 esw_cfg.offload_flags |= (BIT_1 | BIT_2); 826 } 827 if (qlcnic_config_switch_port(adapter, &esw_cfg)) 828 return -EIO; 829 npar = &adapter->npars[i]; 830 npar->pvid = esw_cfg.vlan_id; 831 npar->mac_override = esw_cfg.mac_override; 832 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof; 833 npar->discard_tagged = esw_cfg.discard_tagged; 834 npar->promisc_mode = esw_cfg.promisc_mode; 835 npar->offload_flags = esw_cfg.offload_flags; 836 } 837 838 return 0; 839 } 840 841 static int 842 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter, 843 struct qlcnic_npar_info *npar, int pci_func) 844 { 845 struct qlcnic_esw_func_cfg esw_cfg; 846 esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS; 847 esw_cfg.pci_func = pci_func; 848 esw_cfg.vlan_id = npar->pvid; 849 esw_cfg.mac_override = npar->mac_override; 850 esw_cfg.discard_tagged = npar->discard_tagged; 851 esw_cfg.mac_anti_spoof = npar->mac_anti_spoof; 852 esw_cfg.offload_flags = npar->offload_flags; 853 esw_cfg.promisc_mode = npar->promisc_mode; 854 if (qlcnic_config_switch_port(adapter, &esw_cfg)) 855 return -EIO; 856 857 esw_cfg.op_mode = QLCNIC_ADD_VLAN; 858 if (qlcnic_config_switch_port(adapter, &esw_cfg)) 859 return -EIO; 860 861 return 0; 862 } 863 864 static int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter) 865 { 866 int i, err; 867 struct qlcnic_npar_info *npar; 868 struct qlcnic_info nic_info; 869 u8 pci_func; 870 871 if (qlcnic_82xx_check(adapter)) 872 if (!adapter->need_fw_reset) 873 return 0; 874 875 /* Set the NPAR config data after FW reset */ 876 for (i = 0; i < adapter->ahw->act_pci_func; i++) { 877 npar = &adapter->npars[i]; 878 pci_func = npar->pci_func; 879 memset(&nic_info, 0, sizeof(struct qlcnic_info)); 880 err = qlcnic_get_nic_info(adapter, 881 &nic_info, pci_func); 882 if (err) 883 return err; 884 nic_info.min_tx_bw = npar->min_bw; 885 nic_info.max_tx_bw = npar->max_bw; 886 err = qlcnic_set_nic_info(adapter, &nic_info); 887 if (err) 888 return err; 889 890 if (npar->enable_pm) { 891 err = qlcnic_config_port_mirroring(adapter, 892 npar->dest_npar, 1, 893 pci_func); 894 if (err) 895 return err; 896 } 897 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func); 898 if (err) 899 return err; 900 } 901 return 0; 902 } 903 904 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter) 905 { 906 u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO; 907 u32 npar_state; 908 909 if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC) 910 return 0; 911 912 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE); 913 while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) { 914 msleep(1000); 915 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE); 916 } 917 if (!npar_opt_timeo) { 918 dev_err(&adapter->pdev->dev, 919 "Waiting for NPAR state to opertional timeout\n"); 920 return -EIO; 921 } 922 return 0; 923 } 924 925 static int 926 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter) 927 { 928 int err; 929 930 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) || 931 adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) 932 return 0; 933 934 err = qlcnic_set_default_offload_settings(adapter); 935 if (err) 936 return err; 937 938 err = qlcnic_reset_npar_config(adapter); 939 if (err) 940 return err; 941 942 qlcnic_dev_set_npar_ready(adapter); 943 944 return err; 945 } 946 947 static int 948 qlcnic_start_firmware(struct qlcnic_adapter *adapter) 949 { 950 int err; 951 952 err = qlcnic_can_start_firmware(adapter); 953 if (err < 0) 954 return err; 955 else if (!err) 956 goto check_fw_status; 957 958 if (qlcnic_load_fw_file) 959 qlcnic_request_firmware(adapter); 960 else { 961 err = qlcnic_check_flash_fw_ver(adapter); 962 if (err) 963 goto err_out; 964 965 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE; 966 } 967 968 err = qlcnic_need_fw_reset(adapter); 969 if (err == 0) 970 goto check_fw_status; 971 972 err = qlcnic_pinit_from_rom(adapter); 973 if (err) 974 goto err_out; 975 976 err = qlcnic_load_firmware(adapter); 977 if (err) 978 goto err_out; 979 980 qlcnic_release_firmware(adapter); 981 QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION); 982 983 check_fw_status: 984 err = qlcnic_check_fw_status(adapter); 985 if (err) 986 goto err_out; 987 988 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY); 989 qlcnic_idc_debug_info(adapter, 1); 990 991 err = qlcnic_check_eswitch_mode(adapter); 992 if (err) { 993 dev_err(&adapter->pdev->dev, 994 "Memory allocation failed for eswitch\n"); 995 goto err_out; 996 } 997 err = qlcnic_set_mgmt_operations(adapter); 998 if (err) 999 goto err_out; 1000 1001 qlcnic_check_options(adapter); 1002 adapter->need_fw_reset = 0; 1003 1004 qlcnic_release_firmware(adapter); 1005 return 0; 1006 1007 err_out: 1008 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED); 1009 dev_err(&adapter->pdev->dev, "Device state set to failed\n"); 1010 1011 qlcnic_release_firmware(adapter); 1012 return err; 1013 } 1014 1015 static int 1016 qlcnic_request_irq(struct qlcnic_adapter *adapter) 1017 { 1018 irq_handler_t handler; 1019 struct qlcnic_host_sds_ring *sds_ring; 1020 int err, ring; 1021 1022 unsigned long flags = 0; 1023 struct net_device *netdev = adapter->netdev; 1024 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; 1025 1026 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) { 1027 handler = qlcnic_tmp_intr; 1028 if (!QLCNIC_IS_MSI_FAMILY(adapter)) 1029 flags |= IRQF_SHARED; 1030 1031 } else { 1032 if (adapter->flags & QLCNIC_MSIX_ENABLED) 1033 handler = qlcnic_msix_intr; 1034 else if (adapter->flags & QLCNIC_MSI_ENABLED) 1035 handler = qlcnic_msi_intr; 1036 else { 1037 flags |= IRQF_SHARED; 1038 handler = qlcnic_intr; 1039 } 1040 } 1041 adapter->irq = netdev->irq; 1042 1043 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 1044 sds_ring = &recv_ctx->sds_rings[ring]; 1045 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring); 1046 err = request_irq(sds_ring->irq, handler, 1047 flags, sds_ring->name, sds_ring); 1048 if (err) 1049 return err; 1050 } 1051 1052 return 0; 1053 } 1054 1055 static void 1056 qlcnic_free_irq(struct qlcnic_adapter *adapter) 1057 { 1058 int ring; 1059 struct qlcnic_host_sds_ring *sds_ring; 1060 1061 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; 1062 1063 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 1064 sds_ring = &recv_ctx->sds_rings[ring]; 1065 free_irq(sds_ring->irq, sds_ring); 1066 } 1067 } 1068 1069 static int 1070 __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev) 1071 { 1072 int ring; 1073 u32 capab2; 1074 1075 struct qlcnic_host_rds_ring *rds_ring; 1076 1077 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) 1078 return -EIO; 1079 1080 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) 1081 return 0; 1082 if (qlcnic_set_eswitch_port_config(adapter)) 1083 return -EIO; 1084 1085 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) { 1086 capab2 = QLCRD32(adapter, CRB_FW_CAPABILITIES_2); 1087 if (capab2 & QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG) 1088 adapter->flags |= QLCNIC_FW_LRO_MSS_CAP; 1089 } 1090 1091 if (qlcnic_fw_create_ctx(adapter)) 1092 return -EIO; 1093 1094 for (ring = 0; ring < adapter->max_rds_rings; ring++) { 1095 rds_ring = &adapter->recv_ctx->rds_rings[ring]; 1096 qlcnic_post_rx_buffers(adapter, rds_ring); 1097 } 1098 1099 qlcnic_set_multi(netdev); 1100 qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu); 1101 1102 adapter->ahw->linkup = 0; 1103 1104 if (adapter->max_sds_rings > 1) 1105 qlcnic_config_rss(adapter, 1); 1106 1107 qlcnic_config_intr_coalesce(adapter); 1108 1109 if (netdev->features & NETIF_F_LRO) 1110 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED); 1111 1112 qlcnic_napi_enable(adapter); 1113 1114 qlcnic_linkevent_request(adapter, 1); 1115 1116 adapter->ahw->reset_context = 0; 1117 set_bit(__QLCNIC_DEV_UP, &adapter->state); 1118 return 0; 1119 } 1120 1121 /* Usage: During resume and firmware recovery module.*/ 1122 1123 static int 1124 qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev) 1125 { 1126 int err = 0; 1127 1128 rtnl_lock(); 1129 if (netif_running(netdev)) 1130 err = __qlcnic_up(adapter, netdev); 1131 rtnl_unlock(); 1132 1133 return err; 1134 } 1135 1136 static void 1137 __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev) 1138 { 1139 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) 1140 return; 1141 1142 if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state)) 1143 return; 1144 1145 smp_mb(); 1146 spin_lock(&adapter->tx_clean_lock); 1147 netif_carrier_off(netdev); 1148 netif_tx_disable(netdev); 1149 1150 qlcnic_free_mac_list(adapter); 1151 1152 if (adapter->fhash.fnum) 1153 qlcnic_delete_lb_filters(adapter); 1154 1155 qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE); 1156 1157 qlcnic_napi_disable(adapter); 1158 1159 qlcnic_fw_destroy_ctx(adapter); 1160 adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP; 1161 1162 qlcnic_reset_rx_buffers_list(adapter); 1163 qlcnic_release_tx_buffers(adapter); 1164 spin_unlock(&adapter->tx_clean_lock); 1165 } 1166 1167 /* Usage: During suspend and firmware recovery module */ 1168 1169 static void 1170 qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev) 1171 { 1172 rtnl_lock(); 1173 if (netif_running(netdev)) 1174 __qlcnic_down(adapter, netdev); 1175 rtnl_unlock(); 1176 1177 } 1178 1179 static int 1180 qlcnic_attach(struct qlcnic_adapter *adapter) 1181 { 1182 struct net_device *netdev = adapter->netdev; 1183 struct pci_dev *pdev = adapter->pdev; 1184 int err; 1185 1186 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) 1187 return 0; 1188 1189 err = qlcnic_napi_add(adapter, netdev); 1190 if (err) 1191 return err; 1192 1193 err = qlcnic_alloc_sw_resources(adapter); 1194 if (err) { 1195 dev_err(&pdev->dev, "Error in setting sw resources\n"); 1196 goto err_out_napi_del; 1197 } 1198 1199 err = qlcnic_alloc_hw_resources(adapter); 1200 if (err) { 1201 dev_err(&pdev->dev, "Error in setting hw resources\n"); 1202 goto err_out_free_sw; 1203 } 1204 1205 err = qlcnic_request_irq(adapter); 1206 if (err) { 1207 dev_err(&pdev->dev, "failed to setup interrupt\n"); 1208 goto err_out_free_hw; 1209 } 1210 1211 qlcnic_create_sysfs_entries(adapter); 1212 1213 adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC; 1214 return 0; 1215 1216 err_out_free_hw: 1217 qlcnic_free_hw_resources(adapter); 1218 err_out_free_sw: 1219 qlcnic_free_sw_resources(adapter); 1220 err_out_napi_del: 1221 qlcnic_napi_del(adapter); 1222 return err; 1223 } 1224 1225 static void 1226 qlcnic_detach(struct qlcnic_adapter *adapter) 1227 { 1228 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) 1229 return; 1230 1231 qlcnic_remove_sysfs_entries(adapter); 1232 1233 qlcnic_free_hw_resources(adapter); 1234 qlcnic_release_rx_buffers(adapter); 1235 qlcnic_free_irq(adapter); 1236 qlcnic_napi_del(adapter); 1237 qlcnic_free_sw_resources(adapter); 1238 1239 adapter->is_up = 0; 1240 } 1241 1242 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings) 1243 { 1244 struct qlcnic_adapter *adapter = netdev_priv(netdev); 1245 struct qlcnic_host_sds_ring *sds_ring; 1246 int ring; 1247 1248 clear_bit(__QLCNIC_DEV_UP, &adapter->state); 1249 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) { 1250 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 1251 sds_ring = &adapter->recv_ctx->sds_rings[ring]; 1252 qlcnic_disable_int(sds_ring); 1253 } 1254 } 1255 1256 qlcnic_fw_destroy_ctx(adapter); 1257 1258 qlcnic_detach(adapter); 1259 1260 adapter->ahw->diag_test = 0; 1261 adapter->max_sds_rings = max_sds_rings; 1262 1263 if (qlcnic_attach(adapter)) 1264 goto out; 1265 1266 if (netif_running(netdev)) 1267 __qlcnic_up(adapter, netdev); 1268 out: 1269 netif_device_attach(netdev); 1270 } 1271 1272 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter) 1273 { 1274 int err = 0; 1275 adapter->ahw = kzalloc(sizeof(struct qlcnic_hardware_context), 1276 GFP_KERNEL); 1277 if (!adapter->ahw) { 1278 dev_err(&adapter->pdev->dev, 1279 "Failed to allocate recv ctx resources for adapter\n"); 1280 err = -ENOMEM; 1281 goto err_out; 1282 } 1283 adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context), 1284 GFP_KERNEL); 1285 if (!adapter->recv_ctx) { 1286 dev_err(&adapter->pdev->dev, 1287 "Failed to allocate recv ctx resources for adapter\n"); 1288 kfree(adapter->ahw); 1289 adapter->ahw = NULL; 1290 err = -ENOMEM; 1291 goto err_out; 1292 } 1293 /* Initialize interrupt coalesce parameters */ 1294 adapter->ahw->coal.flag = QLCNIC_INTR_DEFAULT; 1295 adapter->ahw->coal.rx_time_us = QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US; 1296 adapter->ahw->coal.rx_packets = QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS; 1297 err_out: 1298 return err; 1299 } 1300 1301 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter) 1302 { 1303 kfree(adapter->recv_ctx); 1304 adapter->recv_ctx = NULL; 1305 1306 if (adapter->ahw->fw_dump.tmpl_hdr) { 1307 vfree(adapter->ahw->fw_dump.tmpl_hdr); 1308 adapter->ahw->fw_dump.tmpl_hdr = NULL; 1309 } 1310 kfree(adapter->ahw); 1311 adapter->ahw = NULL; 1312 } 1313 1314 int qlcnic_diag_alloc_res(struct net_device *netdev, int test) 1315 { 1316 struct qlcnic_adapter *adapter = netdev_priv(netdev); 1317 struct qlcnic_host_sds_ring *sds_ring; 1318 struct qlcnic_host_rds_ring *rds_ring; 1319 int ring; 1320 int ret; 1321 1322 netif_device_detach(netdev); 1323 1324 if (netif_running(netdev)) 1325 __qlcnic_down(adapter, netdev); 1326 1327 qlcnic_detach(adapter); 1328 1329 adapter->max_sds_rings = 1; 1330 adapter->ahw->diag_test = test; 1331 1332 ret = qlcnic_attach(adapter); 1333 if (ret) { 1334 netif_device_attach(netdev); 1335 return ret; 1336 } 1337 1338 ret = qlcnic_fw_create_ctx(adapter); 1339 if (ret) { 1340 qlcnic_detach(adapter); 1341 netif_device_attach(netdev); 1342 return ret; 1343 } 1344 1345 for (ring = 0; ring < adapter->max_rds_rings; ring++) { 1346 rds_ring = &adapter->recv_ctx->rds_rings[ring]; 1347 qlcnic_post_rx_buffers(adapter, rds_ring); 1348 } 1349 1350 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) { 1351 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 1352 sds_ring = &adapter->recv_ctx->sds_rings[ring]; 1353 qlcnic_enable_int(sds_ring); 1354 } 1355 } 1356 1357 if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) { 1358 adapter->ahw->loopback_state = 0; 1359 qlcnic_linkevent_request(adapter, 1); 1360 } 1361 1362 set_bit(__QLCNIC_DEV_UP, &adapter->state); 1363 1364 return 0; 1365 } 1366 1367 /* Reset context in hardware only */ 1368 static int 1369 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter) 1370 { 1371 struct net_device *netdev = adapter->netdev; 1372 1373 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) 1374 return -EBUSY; 1375 1376 netif_device_detach(netdev); 1377 1378 qlcnic_down(adapter, netdev); 1379 1380 qlcnic_up(adapter, netdev); 1381 1382 netif_device_attach(netdev); 1383 1384 clear_bit(__QLCNIC_RESETTING, &adapter->state); 1385 return 0; 1386 } 1387 1388 int 1389 qlcnic_reset_context(struct qlcnic_adapter *adapter) 1390 { 1391 int err = 0; 1392 struct net_device *netdev = adapter->netdev; 1393 1394 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) 1395 return -EBUSY; 1396 1397 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) { 1398 1399 netif_device_detach(netdev); 1400 1401 if (netif_running(netdev)) 1402 __qlcnic_down(adapter, netdev); 1403 1404 qlcnic_detach(adapter); 1405 1406 if (netif_running(netdev)) { 1407 err = qlcnic_attach(adapter); 1408 if (!err) { 1409 __qlcnic_up(adapter, netdev); 1410 qlcnic_restore_indev_addr(netdev, NETDEV_UP); 1411 } 1412 } 1413 1414 netif_device_attach(netdev); 1415 } 1416 1417 clear_bit(__QLCNIC_RESETTING, &adapter->state); 1418 return err; 1419 } 1420 1421 static int 1422 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev, 1423 int pci_using_dac) 1424 { 1425 int err; 1426 struct pci_dev *pdev = adapter->pdev; 1427 1428 adapter->ahw->mc_enabled = 0; 1429 adapter->ahw->max_mc_count = 38; 1430 1431 netdev->netdev_ops = &qlcnic_netdev_ops; 1432 netdev->watchdog_timeo = 5*HZ; 1433 1434 qlcnic_change_mtu(netdev, netdev->mtu); 1435 1436 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops); 1437 1438 netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | 1439 NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM; 1440 1441 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_TSO) 1442 netdev->hw_features |= NETIF_F_TSO | NETIF_F_TSO6; 1443 if (pci_using_dac == 1) 1444 netdev->hw_features |= NETIF_F_HIGHDMA; 1445 1446 netdev->vlan_features = netdev->hw_features; 1447 1448 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX) 1449 netdev->hw_features |= NETIF_F_HW_VLAN_TX; 1450 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO) 1451 netdev->hw_features |= NETIF_F_LRO; 1452 1453 netdev->features |= netdev->hw_features | 1454 NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER; 1455 1456 netdev->irq = adapter->msix_entries[0].vector; 1457 1458 err = register_netdev(netdev); 1459 if (err) { 1460 dev_err(&pdev->dev, "failed to register net device\n"); 1461 return err; 1462 } 1463 1464 return 0; 1465 } 1466 1467 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac) 1468 { 1469 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) && 1470 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) 1471 *pci_using_dac = 1; 1472 else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) && 1473 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) 1474 *pci_using_dac = 0; 1475 else { 1476 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n"); 1477 return -EIO; 1478 } 1479 1480 return 0; 1481 } 1482 1483 static int 1484 qlcnic_alloc_msix_entries(struct qlcnic_adapter *adapter, u16 count) 1485 { 1486 adapter->msix_entries = kcalloc(count, sizeof(struct msix_entry), 1487 GFP_KERNEL); 1488 1489 if (adapter->msix_entries) 1490 return 0; 1491 1492 dev_err(&adapter->pdev->dev, "failed allocating msix_entries\n"); 1493 return -ENOMEM; 1494 } 1495 1496 static int 1497 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 1498 { 1499 struct net_device *netdev = NULL; 1500 struct qlcnic_adapter *adapter = NULL; 1501 int err, pci_using_dac = -1; 1502 uint8_t revision_id; 1503 char board_name[QLCNIC_MAX_BOARD_NAME_LEN]; 1504 1505 err = pci_enable_device(pdev); 1506 if (err) 1507 return err; 1508 1509 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { 1510 err = -ENODEV; 1511 goto err_out_disable_pdev; 1512 } 1513 1514 err = qlcnic_set_dma_mask(pdev, &pci_using_dac); 1515 if (err) 1516 goto err_out_disable_pdev; 1517 1518 err = pci_request_regions(pdev, qlcnic_driver_name); 1519 if (err) 1520 goto err_out_disable_pdev; 1521 1522 pci_set_master(pdev); 1523 pci_enable_pcie_error_reporting(pdev); 1524 1525 netdev = alloc_etherdev(sizeof(struct qlcnic_adapter)); 1526 if (!netdev) { 1527 err = -ENOMEM; 1528 goto err_out_free_res; 1529 } 1530 1531 SET_NETDEV_DEV(netdev, &pdev->dev); 1532 1533 adapter = netdev_priv(netdev); 1534 adapter->netdev = netdev; 1535 adapter->pdev = pdev; 1536 1537 err = qlcnic_alloc_adapter_resources(adapter); 1538 if (err) 1539 goto err_out_free_netdev; 1540 1541 adapter->dev_rst_time = jiffies; 1542 revision_id = pdev->revision; 1543 adapter->ahw->revision_id = revision_id; 1544 adapter->mac_learn = qlcnic_mac_learn; 1545 1546 rwlock_init(&adapter->ahw->crb_lock); 1547 mutex_init(&adapter->ahw->mem_lock); 1548 1549 spin_lock_init(&adapter->tx_clean_lock); 1550 INIT_LIST_HEAD(&adapter->mac_list); 1551 1552 err = qlcnic_setup_pci_map(pdev, adapter->ahw); 1553 if (err) 1554 goto err_out_free_hw; 1555 qlcnic_check_vf(adapter); 1556 1557 /* This will be reset for mezz cards */ 1558 adapter->portnum = adapter->ahw->pci_func; 1559 1560 err = qlcnic_get_board_info(adapter); 1561 if (err) { 1562 dev_err(&pdev->dev, "Error getting board config info.\n"); 1563 goto err_out_iounmap; 1564 } 1565 1566 err = qlcnic_setup_idc_param(adapter); 1567 if (err) 1568 goto err_out_iounmap; 1569 1570 adapter->flags |= QLCNIC_NEED_FLR; 1571 1572 err = adapter->nic_ops->start_firmware(adapter); 1573 if (err) { 1574 dev_err(&pdev->dev, "Loading fw failed. Please Reboot\n" 1575 "\t\tIf reboot doesn't help, try flashing the card\n"); 1576 goto err_out_maintenance_mode; 1577 } 1578 1579 if (qlcnic_read_mac_addr(adapter)) 1580 dev_warn(&pdev->dev, "failed to read mac addr\n"); 1581 1582 if (adapter->portnum == 0) { 1583 qlcnic_get_board_name(adapter, board_name); 1584 pr_info("%s: %s Board Chip rev 0x%x\n", 1585 module_name(THIS_MODULE), 1586 board_name, adapter->ahw->revision_id); 1587 } 1588 1589 qlcnic_clear_stats(adapter); 1590 1591 err = qlcnic_alloc_msix_entries(adapter, adapter->ahw->max_rx_ques); 1592 if (err) 1593 goto err_out_decr_ref; 1594 1595 qlcnic_setup_intr(adapter); 1596 1597 err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac); 1598 if (err) 1599 goto err_out_disable_msi; 1600 1601 pci_set_drvdata(pdev, adapter); 1602 1603 if (qlcnic_82xx_check(adapter)) 1604 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, 1605 FW_POLL_DELAY); 1606 1607 switch (adapter->ahw->port_type) { 1608 case QLCNIC_GBE: 1609 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n", 1610 adapter->netdev->name); 1611 break; 1612 case QLCNIC_XGBE: 1613 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n", 1614 adapter->netdev->name); 1615 break; 1616 } 1617 1618 if (adapter->mac_learn) 1619 qlcnic_alloc_lb_filters_mem(adapter); 1620 1621 qlcnic_create_diag_entries(adapter); 1622 1623 return 0; 1624 1625 err_out_disable_msi: 1626 qlcnic_teardown_intr(adapter); 1627 kfree(adapter->msix_entries); 1628 1629 err_out_decr_ref: 1630 qlcnic_clr_all_drv_state(adapter, 0); 1631 1632 err_out_iounmap: 1633 qlcnic_cleanup_pci_map(adapter); 1634 1635 err_out_free_hw: 1636 qlcnic_free_adapter_resources(adapter); 1637 1638 err_out_free_netdev: 1639 free_netdev(netdev); 1640 1641 err_out_free_res: 1642 pci_release_regions(pdev); 1643 1644 err_out_disable_pdev: 1645 pci_set_drvdata(pdev, NULL); 1646 pci_disable_device(pdev); 1647 return err; 1648 1649 err_out_maintenance_mode: 1650 netdev->netdev_ops = &qlcnic_netdev_failed_ops; 1651 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_failed_ops); 1652 err = register_netdev(netdev); 1653 if (err) { 1654 dev_err(&pdev->dev, "failed to register net device\n"); 1655 goto err_out_decr_ref; 1656 } 1657 pci_set_drvdata(pdev, adapter); 1658 qlcnic_create_diag_entries(adapter); 1659 return 0; 1660 } 1661 1662 static void qlcnic_remove(struct pci_dev *pdev) 1663 { 1664 struct qlcnic_adapter *adapter; 1665 struct net_device *netdev; 1666 1667 adapter = pci_get_drvdata(pdev); 1668 if (adapter == NULL) 1669 return; 1670 1671 netdev = adapter->netdev; 1672 1673 qlcnic_cancel_fw_work(adapter); 1674 1675 unregister_netdev(netdev); 1676 1677 qlcnic_detach(adapter); 1678 1679 if (adapter->npars != NULL) 1680 kfree(adapter->npars); 1681 if (adapter->eswitch != NULL) 1682 kfree(adapter->eswitch); 1683 1684 if (qlcnic_82xx_check(adapter)) 1685 qlcnic_clr_all_drv_state(adapter, 0); 1686 1687 clear_bit(__QLCNIC_RESETTING, &adapter->state); 1688 1689 qlcnic_free_lb_filters_mem(adapter); 1690 1691 qlcnic_teardown_intr(adapter); 1692 kfree(adapter->msix_entries); 1693 1694 qlcnic_remove_diag_entries(adapter); 1695 1696 qlcnic_cleanup_pci_map(adapter); 1697 1698 qlcnic_release_firmware(adapter); 1699 1700 pci_disable_pcie_error_reporting(pdev); 1701 pci_release_regions(pdev); 1702 pci_disable_device(pdev); 1703 pci_set_drvdata(pdev, NULL); 1704 1705 qlcnic_free_adapter_resources(adapter); 1706 free_netdev(netdev); 1707 } 1708 static int __qlcnic_shutdown(struct pci_dev *pdev) 1709 { 1710 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev); 1711 struct net_device *netdev = adapter->netdev; 1712 int retval; 1713 1714 netif_device_detach(netdev); 1715 1716 qlcnic_cancel_fw_work(adapter); 1717 1718 if (netif_running(netdev)) 1719 qlcnic_down(adapter, netdev); 1720 1721 if (qlcnic_82xx_check(adapter)) 1722 qlcnic_clr_all_drv_state(adapter, 0); 1723 1724 clear_bit(__QLCNIC_RESETTING, &adapter->state); 1725 1726 retval = pci_save_state(pdev); 1727 if (retval) 1728 return retval; 1729 1730 if (qlcnic_82xx_check(adapter)) { 1731 if (qlcnic_wol_supported(adapter)) { 1732 pci_enable_wake(pdev, PCI_D3cold, 1); 1733 pci_enable_wake(pdev, PCI_D3hot, 1); 1734 } 1735 } 1736 1737 return 0; 1738 } 1739 1740 static void qlcnic_shutdown(struct pci_dev *pdev) 1741 { 1742 if (__qlcnic_shutdown(pdev)) 1743 return; 1744 1745 pci_disable_device(pdev); 1746 } 1747 1748 #ifdef CONFIG_PM 1749 static int 1750 qlcnic_suspend(struct pci_dev *pdev, pm_message_t state) 1751 { 1752 int retval; 1753 1754 retval = __qlcnic_shutdown(pdev); 1755 if (retval) 1756 return retval; 1757 1758 pci_set_power_state(pdev, pci_choose_state(pdev, state)); 1759 return 0; 1760 } 1761 1762 static int 1763 qlcnic_resume(struct pci_dev *pdev) 1764 { 1765 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev); 1766 struct net_device *netdev = adapter->netdev; 1767 int err; 1768 1769 err = pci_enable_device(pdev); 1770 if (err) 1771 return err; 1772 1773 pci_set_power_state(pdev, PCI_D0); 1774 pci_set_master(pdev); 1775 pci_restore_state(pdev); 1776 1777 err = adapter->nic_ops->start_firmware(adapter); 1778 if (err) { 1779 dev_err(&pdev->dev, "failed to start firmware\n"); 1780 return err; 1781 } 1782 1783 if (netif_running(netdev)) { 1784 err = qlcnic_up(adapter, netdev); 1785 if (err) 1786 goto done; 1787 1788 qlcnic_restore_indev_addr(netdev, NETDEV_UP); 1789 } 1790 done: 1791 netif_device_attach(netdev); 1792 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY); 1793 return 0; 1794 } 1795 #endif 1796 1797 static int qlcnic_open(struct net_device *netdev) 1798 { 1799 struct qlcnic_adapter *adapter = netdev_priv(netdev); 1800 u32 state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); 1801 int err; 1802 1803 if (state == QLCNIC_DEV_FAILED || (state == QLCNIC_DEV_BADBAD)) { 1804 netdev_err(netdev, "Device in FAILED state\n"); 1805 return -EIO; 1806 } 1807 1808 netif_carrier_off(netdev); 1809 1810 err = qlcnic_attach(adapter); 1811 if (err) 1812 return err; 1813 1814 err = __qlcnic_up(adapter, netdev); 1815 if (err) 1816 goto err_out; 1817 1818 netif_start_queue(netdev); 1819 1820 return 0; 1821 1822 err_out: 1823 qlcnic_detach(adapter); 1824 return err; 1825 } 1826 1827 /* 1828 * qlcnic_close - Disables a network interface entry point 1829 */ 1830 static int qlcnic_close(struct net_device *netdev) 1831 { 1832 struct qlcnic_adapter *adapter = netdev_priv(netdev); 1833 1834 __qlcnic_down(adapter, netdev); 1835 return 0; 1836 } 1837 1838 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter) 1839 { 1840 void *head; 1841 int i; 1842 1843 if (adapter->fhash.fmax && adapter->fhash.fhead) 1844 return; 1845 1846 spin_lock_init(&adapter->mac_learn_lock); 1847 1848 head = kcalloc(QLCNIC_LB_MAX_FILTERS, sizeof(struct hlist_head), 1849 GFP_KERNEL); 1850 if (!head) 1851 return; 1852 1853 adapter->fhash.fmax = QLCNIC_LB_MAX_FILTERS; 1854 adapter->fhash.fhead = head; 1855 1856 for (i = 0; i < adapter->fhash.fmax; i++) 1857 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]); 1858 } 1859 1860 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter) 1861 { 1862 if (adapter->fhash.fmax && adapter->fhash.fhead) 1863 kfree(adapter->fhash.fhead); 1864 1865 adapter->fhash.fhead = NULL; 1866 adapter->fhash.fmax = 0; 1867 } 1868 1869 static int qlcnic_check_temp(struct qlcnic_adapter *adapter) 1870 { 1871 struct net_device *netdev = adapter->netdev; 1872 u32 temp_state, temp_val, temp = 0; 1873 int rv = 0; 1874 1875 if (qlcnic_82xx_check(adapter)) 1876 temp = QLCRD32(adapter, CRB_TEMP_STATE); 1877 1878 temp_state = qlcnic_get_temp_state(temp); 1879 temp_val = qlcnic_get_temp_val(temp); 1880 1881 if (temp_state == QLCNIC_TEMP_PANIC) { 1882 dev_err(&netdev->dev, 1883 "Device temperature %d degrees C exceeds" 1884 " maximum allowed. Hardware has been shut down.\n", 1885 temp_val); 1886 rv = 1; 1887 } else if (temp_state == QLCNIC_TEMP_WARN) { 1888 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) { 1889 dev_err(&netdev->dev, 1890 "Device temperature %d degrees C " 1891 "exceeds operating range." 1892 " Immediate action needed.\n", 1893 temp_val); 1894 } 1895 } else { 1896 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) { 1897 dev_info(&netdev->dev, 1898 "Device temperature is now %d degrees C" 1899 " in normal range.\n", temp_val); 1900 } 1901 } 1902 adapter->ahw->temp = temp_state; 1903 return rv; 1904 } 1905 1906 static void qlcnic_tx_timeout(struct net_device *netdev) 1907 { 1908 struct qlcnic_adapter *adapter = netdev_priv(netdev); 1909 1910 if (test_bit(__QLCNIC_RESETTING, &adapter->state)) 1911 return; 1912 1913 dev_err(&netdev->dev, "transmit timeout, resetting.\n"); 1914 1915 if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS) 1916 adapter->need_fw_reset = 1; 1917 else 1918 adapter->ahw->reset_context = 1; 1919 } 1920 1921 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev) 1922 { 1923 struct qlcnic_adapter *adapter = netdev_priv(netdev); 1924 struct net_device_stats *stats = &netdev->stats; 1925 1926 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts; 1927 stats->tx_packets = adapter->stats.xmitfinished; 1928 stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes; 1929 stats->tx_bytes = adapter->stats.txbytes; 1930 stats->rx_dropped = adapter->stats.rxdropped; 1931 stats->tx_dropped = adapter->stats.txdropped; 1932 1933 return stats; 1934 } 1935 1936 static irqreturn_t qlcnic_clear_legacy_intr(struct qlcnic_adapter *adapter) 1937 { 1938 u32 status; 1939 1940 status = readl(adapter->isr_int_vec); 1941 1942 if (!(status & adapter->ahw->int_vec_bit)) 1943 return IRQ_NONE; 1944 1945 /* check interrupt state machine, to be sure */ 1946 status = readl(adapter->crb_int_state_reg); 1947 if (!ISR_LEGACY_INT_TRIGGERED(status)) 1948 return IRQ_NONE; 1949 1950 writel(0xffffffff, adapter->tgt_status_reg); 1951 /* read twice to ensure write is flushed */ 1952 readl(adapter->isr_int_vec); 1953 readl(adapter->isr_int_vec); 1954 1955 return IRQ_HANDLED; 1956 } 1957 1958 static irqreturn_t qlcnic_tmp_intr(int irq, void *data) 1959 { 1960 struct qlcnic_host_sds_ring *sds_ring = data; 1961 struct qlcnic_adapter *adapter = sds_ring->adapter; 1962 1963 if (adapter->flags & QLCNIC_MSIX_ENABLED) 1964 goto done; 1965 else if (adapter->flags & QLCNIC_MSI_ENABLED) { 1966 writel(0xffffffff, adapter->tgt_status_reg); 1967 goto done; 1968 } 1969 1970 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE) 1971 return IRQ_NONE; 1972 1973 done: 1974 adapter->ahw->diag_cnt++; 1975 qlcnic_enable_int(sds_ring); 1976 return IRQ_HANDLED; 1977 } 1978 1979 static irqreturn_t qlcnic_intr(int irq, void *data) 1980 { 1981 struct qlcnic_host_sds_ring *sds_ring = data; 1982 struct qlcnic_adapter *adapter = sds_ring->adapter; 1983 1984 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE) 1985 return IRQ_NONE; 1986 1987 napi_schedule(&sds_ring->napi); 1988 1989 return IRQ_HANDLED; 1990 } 1991 1992 static irqreturn_t qlcnic_msi_intr(int irq, void *data) 1993 { 1994 struct qlcnic_host_sds_ring *sds_ring = data; 1995 struct qlcnic_adapter *adapter = sds_ring->adapter; 1996 1997 /* clear interrupt */ 1998 writel(0xffffffff, adapter->tgt_status_reg); 1999 2000 napi_schedule(&sds_ring->napi); 2001 return IRQ_HANDLED; 2002 } 2003 2004 static irqreturn_t qlcnic_msix_intr(int irq, void *data) 2005 { 2006 struct qlcnic_host_sds_ring *sds_ring = data; 2007 2008 napi_schedule(&sds_ring->napi); 2009 return IRQ_HANDLED; 2010 } 2011 2012 #ifdef CONFIG_NET_POLL_CONTROLLER 2013 static void qlcnic_poll_controller(struct net_device *netdev) 2014 { 2015 int ring; 2016 struct qlcnic_host_sds_ring *sds_ring; 2017 struct qlcnic_adapter *adapter = netdev_priv(netdev); 2018 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; 2019 2020 disable_irq(adapter->irq); 2021 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 2022 sds_ring = &recv_ctx->sds_rings[ring]; 2023 qlcnic_intr(adapter->irq, sds_ring); 2024 } 2025 enable_irq(adapter->irq); 2026 } 2027 #endif 2028 2029 static void 2030 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding) 2031 { 2032 u32 val; 2033 2034 val = adapter->portnum & 0xf; 2035 val |= encoding << 7; 2036 val |= (jiffies - adapter->dev_rst_time) << 8; 2037 2038 QLCWR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val); 2039 adapter->dev_rst_time = jiffies; 2040 } 2041 2042 static int 2043 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state) 2044 { 2045 u32 val; 2046 2047 WARN_ON(state != QLCNIC_DEV_NEED_RESET && 2048 state != QLCNIC_DEV_NEED_QUISCENT); 2049 2050 if (qlcnic_api_lock(adapter)) 2051 return -EIO; 2052 2053 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); 2054 2055 if (state == QLCNIC_DEV_NEED_RESET) 2056 QLC_DEV_SET_RST_RDY(val, adapter->portnum); 2057 else if (state == QLCNIC_DEV_NEED_QUISCENT) 2058 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum); 2059 2060 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); 2061 2062 qlcnic_api_unlock(adapter); 2063 2064 return 0; 2065 } 2066 2067 static int 2068 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter) 2069 { 2070 u32 val; 2071 2072 if (qlcnic_api_lock(adapter)) 2073 return -EBUSY; 2074 2075 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); 2076 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum); 2077 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); 2078 2079 qlcnic_api_unlock(adapter); 2080 2081 return 0; 2082 } 2083 2084 static void 2085 qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed) 2086 { 2087 u32 val; 2088 2089 if (qlcnic_api_lock(adapter)) 2090 goto err; 2091 2092 val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE); 2093 QLC_DEV_CLR_REF_CNT(val, adapter->portnum); 2094 QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val); 2095 2096 if (failed) { 2097 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED); 2098 dev_info(&adapter->pdev->dev, 2099 "Device state set to Failed. Please Reboot\n"); 2100 } else if (!(val & 0x11111111)) 2101 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_COLD); 2102 2103 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); 2104 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum); 2105 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); 2106 2107 qlcnic_api_unlock(adapter); 2108 err: 2109 adapter->fw_fail_cnt = 0; 2110 adapter->flags &= ~QLCNIC_FW_HANG; 2111 clear_bit(__QLCNIC_START_FW, &adapter->state); 2112 clear_bit(__QLCNIC_RESETTING, &adapter->state); 2113 } 2114 2115 /* Grab api lock, before checking state */ 2116 static int 2117 qlcnic_check_drv_state(struct qlcnic_adapter *adapter) 2118 { 2119 int act, state, active_mask; 2120 2121 state = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); 2122 act = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE); 2123 2124 if (adapter->flags & QLCNIC_FW_RESET_OWNER) { 2125 active_mask = (~(1 << (adapter->ahw->pci_func * 4))); 2126 act = act & active_mask; 2127 } 2128 2129 if (((state & 0x11111111) == (act & 0x11111111)) || 2130 ((act & 0x11111111) == ((state >> 1) & 0x11111111))) 2131 return 0; 2132 else 2133 return 1; 2134 } 2135 2136 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter) 2137 { 2138 u32 val = QLCRD32(adapter, QLCNIC_CRB_DRV_IDC_VER); 2139 2140 if (val != QLCNIC_DRV_IDC_VER) { 2141 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's" 2142 " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val); 2143 } 2144 2145 return 0; 2146 } 2147 2148 static int 2149 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter) 2150 { 2151 u32 val, prev_state; 2152 u8 dev_init_timeo = adapter->dev_init_timeo; 2153 u8 portnum = adapter->portnum; 2154 u8 ret; 2155 2156 if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state)) 2157 return 1; 2158 2159 if (qlcnic_api_lock(adapter)) 2160 return -1; 2161 2162 val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE); 2163 if (!(val & (1 << (portnum * 4)))) { 2164 QLC_DEV_SET_REF_CNT(val, portnum); 2165 QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val); 2166 } 2167 2168 prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); 2169 QLCDB(adapter, HW, "Device state = %u\n", prev_state); 2170 2171 switch (prev_state) { 2172 case QLCNIC_DEV_COLD: 2173 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING); 2174 QLCWR32(adapter, QLCNIC_CRB_DRV_IDC_VER, QLCNIC_DRV_IDC_VER); 2175 qlcnic_idc_debug_info(adapter, 0); 2176 qlcnic_api_unlock(adapter); 2177 return 1; 2178 2179 case QLCNIC_DEV_READY: 2180 ret = qlcnic_check_idc_ver(adapter); 2181 qlcnic_api_unlock(adapter); 2182 return ret; 2183 2184 case QLCNIC_DEV_NEED_RESET: 2185 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); 2186 QLC_DEV_SET_RST_RDY(val, portnum); 2187 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); 2188 break; 2189 2190 case QLCNIC_DEV_NEED_QUISCENT: 2191 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); 2192 QLC_DEV_SET_QSCNT_RDY(val, portnum); 2193 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); 2194 break; 2195 2196 case QLCNIC_DEV_FAILED: 2197 dev_err(&adapter->pdev->dev, "Device in failed state.\n"); 2198 qlcnic_api_unlock(adapter); 2199 return -1; 2200 2201 case QLCNIC_DEV_INITIALIZING: 2202 case QLCNIC_DEV_QUISCENT: 2203 break; 2204 } 2205 2206 qlcnic_api_unlock(adapter); 2207 2208 do { 2209 msleep(1000); 2210 prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); 2211 2212 if (prev_state == QLCNIC_DEV_QUISCENT) 2213 continue; 2214 } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo); 2215 2216 if (!dev_init_timeo) { 2217 dev_err(&adapter->pdev->dev, 2218 "Waiting for device to initialize timeout\n"); 2219 return -1; 2220 } 2221 2222 if (qlcnic_api_lock(adapter)) 2223 return -1; 2224 2225 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); 2226 QLC_DEV_CLR_RST_QSCNT(val, portnum); 2227 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); 2228 2229 ret = qlcnic_check_idc_ver(adapter); 2230 qlcnic_api_unlock(adapter); 2231 2232 return ret; 2233 } 2234 2235 static void 2236 qlcnic_fwinit_work(struct work_struct *work) 2237 { 2238 struct qlcnic_adapter *adapter = container_of(work, 2239 struct qlcnic_adapter, fw_work.work); 2240 u32 dev_state = 0xf; 2241 u32 val; 2242 2243 if (qlcnic_api_lock(adapter)) 2244 goto err_ret; 2245 2246 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); 2247 if (dev_state == QLCNIC_DEV_QUISCENT || 2248 dev_state == QLCNIC_DEV_NEED_QUISCENT) { 2249 qlcnic_api_unlock(adapter); 2250 qlcnic_schedule_work(adapter, qlcnic_fwinit_work, 2251 FW_POLL_DELAY * 2); 2252 return; 2253 } 2254 2255 if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) { 2256 qlcnic_api_unlock(adapter); 2257 goto wait_npar; 2258 } 2259 2260 if (dev_state == QLCNIC_DEV_INITIALIZING || 2261 dev_state == QLCNIC_DEV_READY) { 2262 dev_info(&adapter->pdev->dev, "Detected state change from " 2263 "DEV_NEED_RESET, skipping ack check\n"); 2264 goto skip_ack_check; 2265 } 2266 2267 if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) { 2268 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n", 2269 adapter->reset_ack_timeo); 2270 goto skip_ack_check; 2271 } 2272 2273 if (!qlcnic_check_drv_state(adapter)) { 2274 skip_ack_check: 2275 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); 2276 2277 if (dev_state == QLCNIC_DEV_NEED_RESET) { 2278 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, 2279 QLCNIC_DEV_INITIALIZING); 2280 set_bit(__QLCNIC_START_FW, &adapter->state); 2281 QLCDB(adapter, DRV, "Restarting fw\n"); 2282 qlcnic_idc_debug_info(adapter, 0); 2283 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); 2284 QLC_DEV_SET_RST_RDY(val, adapter->portnum); 2285 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); 2286 } 2287 2288 qlcnic_api_unlock(adapter); 2289 2290 rtnl_lock(); 2291 if (adapter->ahw->fw_dump.enable && 2292 (adapter->flags & QLCNIC_FW_RESET_OWNER)) { 2293 QLCDB(adapter, DRV, "Take FW dump\n"); 2294 qlcnic_dump_fw(adapter); 2295 adapter->flags |= QLCNIC_FW_HANG; 2296 } 2297 rtnl_unlock(); 2298 2299 adapter->flags &= ~QLCNIC_FW_RESET_OWNER; 2300 if (!adapter->nic_ops->start_firmware(adapter)) { 2301 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0); 2302 adapter->fw_wait_cnt = 0; 2303 return; 2304 } 2305 goto err_ret; 2306 } 2307 2308 qlcnic_api_unlock(adapter); 2309 2310 wait_npar: 2311 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); 2312 QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state); 2313 2314 switch (dev_state) { 2315 case QLCNIC_DEV_READY: 2316 if (!adapter->nic_ops->start_firmware(adapter)) { 2317 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0); 2318 adapter->fw_wait_cnt = 0; 2319 return; 2320 } 2321 case QLCNIC_DEV_FAILED: 2322 break; 2323 default: 2324 qlcnic_schedule_work(adapter, 2325 qlcnic_fwinit_work, FW_POLL_DELAY); 2326 return; 2327 } 2328 2329 err_ret: 2330 dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u " 2331 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt); 2332 netif_device_attach(adapter->netdev); 2333 qlcnic_clr_all_drv_state(adapter, 0); 2334 } 2335 2336 static void 2337 qlcnic_detach_work(struct work_struct *work) 2338 { 2339 struct qlcnic_adapter *adapter = container_of(work, 2340 struct qlcnic_adapter, fw_work.work); 2341 struct net_device *netdev = adapter->netdev; 2342 u32 status; 2343 2344 netif_device_detach(netdev); 2345 2346 /* Dont grab rtnl lock during Quiscent mode */ 2347 if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) { 2348 if (netif_running(netdev)) 2349 __qlcnic_down(adapter, netdev); 2350 } else 2351 qlcnic_down(adapter, netdev); 2352 2353 status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1); 2354 2355 if (status & QLCNIC_RCODE_FATAL_ERROR) { 2356 dev_err(&adapter->pdev->dev, 2357 "Detaching the device: peg halt status1=0x%x\n", 2358 status); 2359 2360 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) { 2361 dev_err(&adapter->pdev->dev, 2362 "On board active cooling fan failed. " 2363 "Device has been halted.\n"); 2364 dev_err(&adapter->pdev->dev, 2365 "Replace the adapter.\n"); 2366 } 2367 2368 goto err_ret; 2369 } 2370 2371 if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) { 2372 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n", 2373 adapter->ahw->temp); 2374 goto err_ret; 2375 } 2376 2377 /* Dont ack if this instance is the reset owner */ 2378 if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) { 2379 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) { 2380 dev_err(&adapter->pdev->dev, 2381 "Failed to set driver state," 2382 "detaching the device.\n"); 2383 goto err_ret; 2384 } 2385 } 2386 2387 adapter->fw_wait_cnt = 0; 2388 2389 qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY); 2390 2391 return; 2392 2393 err_ret: 2394 netif_device_attach(netdev); 2395 qlcnic_clr_all_drv_state(adapter, 1); 2396 } 2397 2398 /*Transit NPAR state to NON Operational */ 2399 static void 2400 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter) 2401 { 2402 u32 state; 2403 2404 state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE); 2405 if (state == QLCNIC_DEV_NPAR_NON_OPER) 2406 return; 2407 2408 if (qlcnic_api_lock(adapter)) 2409 return; 2410 QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER); 2411 qlcnic_api_unlock(adapter); 2412 } 2413 2414 /*Transit to RESET state from READY state only */ 2415 void 2416 qlcnic_dev_request_reset(struct qlcnic_adapter *adapter) 2417 { 2418 u32 state, xg_val = 0, gb_val = 0; 2419 2420 qlcnic_xg_set_xg0_mask(xg_val); 2421 qlcnic_xg_set_xg1_mask(xg_val); 2422 QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val); 2423 qlcnic_gb_set_gb0_mask(gb_val); 2424 qlcnic_gb_set_gb1_mask(gb_val); 2425 qlcnic_gb_set_gb2_mask(gb_val); 2426 qlcnic_gb_set_gb3_mask(gb_val); 2427 QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val); 2428 dev_info(&adapter->pdev->dev, "Pause control frames disabled" 2429 " on all ports\n"); 2430 adapter->need_fw_reset = 1; 2431 if (qlcnic_api_lock(adapter)) 2432 return; 2433 2434 state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); 2435 if (state == QLCNIC_DEV_FAILED || (state == QLCNIC_DEV_BADBAD)) { 2436 netdev_err(adapter->netdev, 2437 "Device is in FAILED state, Please Reboot\n"); 2438 qlcnic_api_unlock(adapter); 2439 return; 2440 } 2441 2442 if (state == QLCNIC_DEV_READY) { 2443 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_NEED_RESET); 2444 adapter->flags |= QLCNIC_FW_RESET_OWNER; 2445 QLCDB(adapter, DRV, "NEED_RESET state set\n"); 2446 qlcnic_idc_debug_info(adapter, 0); 2447 } 2448 2449 QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER); 2450 qlcnic_api_unlock(adapter); 2451 } 2452 2453 /* Transit to NPAR READY state from NPAR NOT READY state */ 2454 static void 2455 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter) 2456 { 2457 if (qlcnic_api_lock(adapter)) 2458 return; 2459 2460 QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_OPER); 2461 QLCDB(adapter, DRV, "NPAR operational state set\n"); 2462 2463 qlcnic_api_unlock(adapter); 2464 } 2465 2466 static void 2467 qlcnic_schedule_work(struct qlcnic_adapter *adapter, 2468 work_func_t func, int delay) 2469 { 2470 if (test_bit(__QLCNIC_AER, &adapter->state)) 2471 return; 2472 2473 INIT_DELAYED_WORK(&adapter->fw_work, func); 2474 queue_delayed_work(qlcnic_wq, &adapter->fw_work, 2475 round_jiffies_relative(delay)); 2476 } 2477 2478 static void 2479 qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter) 2480 { 2481 while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) 2482 msleep(10); 2483 2484 if (!adapter->fw_work.work.func) 2485 return; 2486 2487 cancel_delayed_work_sync(&adapter->fw_work); 2488 } 2489 2490 static void 2491 qlcnic_attach_work(struct work_struct *work) 2492 { 2493 struct qlcnic_adapter *adapter = container_of(work, 2494 struct qlcnic_adapter, fw_work.work); 2495 struct net_device *netdev = adapter->netdev; 2496 u32 npar_state; 2497 2498 if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) { 2499 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE); 2500 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO) 2501 qlcnic_clr_all_drv_state(adapter, 0); 2502 else if (npar_state != QLCNIC_DEV_NPAR_OPER) 2503 qlcnic_schedule_work(adapter, qlcnic_attach_work, 2504 FW_POLL_DELAY); 2505 else 2506 goto attach; 2507 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n"); 2508 return; 2509 } 2510 attach: 2511 if (netif_running(netdev)) { 2512 if (qlcnic_up(adapter, netdev)) 2513 goto done; 2514 2515 qlcnic_restore_indev_addr(netdev, NETDEV_UP); 2516 } 2517 2518 done: 2519 netif_device_attach(netdev); 2520 adapter->fw_fail_cnt = 0; 2521 adapter->flags &= ~QLCNIC_FW_HANG; 2522 clear_bit(__QLCNIC_RESETTING, &adapter->state); 2523 2524 if (!qlcnic_clr_drv_state(adapter)) 2525 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, 2526 FW_POLL_DELAY); 2527 } 2528 2529 static int 2530 qlcnic_check_health(struct qlcnic_adapter *adapter) 2531 { 2532 u32 state = 0, heartbeat; 2533 u32 peg_status; 2534 2535 if (qlcnic_check_temp(adapter)) 2536 goto detach; 2537 2538 if (adapter->need_fw_reset) 2539 qlcnic_dev_request_reset(adapter); 2540 2541 state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); 2542 if (state == QLCNIC_DEV_NEED_RESET) { 2543 qlcnic_set_npar_non_operational(adapter); 2544 adapter->need_fw_reset = 1; 2545 } else if (state == QLCNIC_DEV_NEED_QUISCENT) 2546 goto detach; 2547 2548 heartbeat = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER); 2549 if (heartbeat != adapter->heartbeat) { 2550 adapter->heartbeat = heartbeat; 2551 adapter->fw_fail_cnt = 0; 2552 if (adapter->need_fw_reset) 2553 goto detach; 2554 2555 if (adapter->ahw->reset_context && qlcnic_auto_fw_reset) { 2556 qlcnic_reset_hw_context(adapter); 2557 adapter->netdev->trans_start = jiffies; 2558 } 2559 2560 return 0; 2561 } 2562 2563 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH) 2564 return 0; 2565 2566 adapter->flags |= QLCNIC_FW_HANG; 2567 2568 qlcnic_dev_request_reset(adapter); 2569 2570 if (qlcnic_auto_fw_reset) 2571 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state); 2572 2573 dev_err(&adapter->pdev->dev, "firmware hang detected\n"); 2574 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n" 2575 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n" 2576 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n" 2577 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n" 2578 "PEG_NET_4_PC: 0x%x\n", 2579 QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1), 2580 QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS2), 2581 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c), 2582 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c), 2583 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c), 2584 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c), 2585 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c)); 2586 peg_status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1); 2587 if (QLCNIC_FWERROR_CODE(peg_status) == 0x67) 2588 dev_err(&adapter->pdev->dev, 2589 "Firmware aborted with error code 0x00006700. " 2590 "Device is being reset.\n"); 2591 detach: 2592 adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state : 2593 QLCNIC_DEV_NEED_RESET; 2594 2595 if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING, 2596 &adapter->state)) { 2597 2598 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0); 2599 QLCDB(adapter, DRV, "fw recovery scheduled.\n"); 2600 } 2601 2602 return 1; 2603 } 2604 2605 static void 2606 qlcnic_fw_poll_work(struct work_struct *work) 2607 { 2608 struct qlcnic_adapter *adapter = container_of(work, 2609 struct qlcnic_adapter, fw_work.work); 2610 2611 if (test_bit(__QLCNIC_RESETTING, &adapter->state)) 2612 goto reschedule; 2613 2614 2615 if (qlcnic_check_health(adapter)) 2616 return; 2617 2618 if (adapter->fhash.fnum) 2619 qlcnic_prune_lb_filters(adapter); 2620 2621 reschedule: 2622 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY); 2623 } 2624 2625 static int qlcnic_is_first_func(struct pci_dev *pdev) 2626 { 2627 struct pci_dev *oth_pdev; 2628 int val = pdev->devfn; 2629 2630 while (val-- > 0) { 2631 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr 2632 (pdev->bus), pdev->bus->number, 2633 PCI_DEVFN(PCI_SLOT(pdev->devfn), val)); 2634 if (!oth_pdev) 2635 continue; 2636 2637 if (oth_pdev->current_state != PCI_D3cold) { 2638 pci_dev_put(oth_pdev); 2639 return 0; 2640 } 2641 pci_dev_put(oth_pdev); 2642 } 2643 return 1; 2644 } 2645 2646 static int qlcnic_attach_func(struct pci_dev *pdev) 2647 { 2648 int err, first_func; 2649 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev); 2650 struct net_device *netdev = adapter->netdev; 2651 2652 pdev->error_state = pci_channel_io_normal; 2653 2654 err = pci_enable_device(pdev); 2655 if (err) 2656 return err; 2657 2658 pci_set_power_state(pdev, PCI_D0); 2659 pci_set_master(pdev); 2660 pci_restore_state(pdev); 2661 2662 first_func = qlcnic_is_first_func(pdev); 2663 2664 if (qlcnic_api_lock(adapter)) 2665 return -EINVAL; 2666 2667 if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) { 2668 adapter->need_fw_reset = 1; 2669 set_bit(__QLCNIC_START_FW, &adapter->state); 2670 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING); 2671 QLCDB(adapter, DRV, "Restarting fw\n"); 2672 } 2673 qlcnic_api_unlock(adapter); 2674 2675 err = adapter->nic_ops->start_firmware(adapter); 2676 if (err) 2677 return err; 2678 2679 qlcnic_clr_drv_state(adapter); 2680 qlcnic_setup_intr(adapter); 2681 2682 if (netif_running(netdev)) { 2683 err = qlcnic_attach(adapter); 2684 if (err) { 2685 qlcnic_clr_all_drv_state(adapter, 1); 2686 clear_bit(__QLCNIC_AER, &adapter->state); 2687 netif_device_attach(netdev); 2688 return err; 2689 } 2690 2691 err = qlcnic_up(adapter, netdev); 2692 if (err) 2693 goto done; 2694 2695 qlcnic_restore_indev_addr(netdev, NETDEV_UP); 2696 } 2697 done: 2698 netif_device_attach(netdev); 2699 return err; 2700 } 2701 2702 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev, 2703 pci_channel_state_t state) 2704 { 2705 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev); 2706 struct net_device *netdev = adapter->netdev; 2707 2708 if (state == pci_channel_io_perm_failure) 2709 return PCI_ERS_RESULT_DISCONNECT; 2710 2711 if (state == pci_channel_io_normal) 2712 return PCI_ERS_RESULT_RECOVERED; 2713 2714 set_bit(__QLCNIC_AER, &adapter->state); 2715 netif_device_detach(netdev); 2716 2717 cancel_delayed_work_sync(&adapter->fw_work); 2718 2719 if (netif_running(netdev)) 2720 qlcnic_down(adapter, netdev); 2721 2722 qlcnic_detach(adapter); 2723 qlcnic_teardown_intr(adapter); 2724 2725 clear_bit(__QLCNIC_RESETTING, &adapter->state); 2726 2727 pci_save_state(pdev); 2728 pci_disable_device(pdev); 2729 2730 return PCI_ERS_RESULT_NEED_RESET; 2731 } 2732 2733 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev) 2734 { 2735 return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT : 2736 PCI_ERS_RESULT_RECOVERED; 2737 } 2738 2739 static void qlcnic_io_resume(struct pci_dev *pdev) 2740 { 2741 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev); 2742 2743 pci_cleanup_aer_uncorrect_error_status(pdev); 2744 2745 if (QLCRD32(adapter, QLCNIC_CRB_DEV_STATE) == QLCNIC_DEV_READY && 2746 test_and_clear_bit(__QLCNIC_AER, &adapter->state)) 2747 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, 2748 FW_POLL_DELAY); 2749 } 2750 2751 static int 2752 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter) 2753 { 2754 int err; 2755 2756 err = qlcnic_can_start_firmware(adapter); 2757 if (err) 2758 return err; 2759 2760 err = qlcnic_check_npar_opertional(adapter); 2761 if (err) 2762 return err; 2763 2764 err = qlcnic_initialize_nic(adapter); 2765 if (err) 2766 return err; 2767 2768 qlcnic_check_options(adapter); 2769 2770 err = qlcnic_set_eswitch_port_config(adapter); 2771 if (err) 2772 return err; 2773 2774 adapter->need_fw_reset = 0; 2775 2776 return err; 2777 } 2778 2779 int qlcnic_validate_max_rss(struct net_device *netdev, u8 max_hw, u8 val) 2780 { 2781 if (!qlcnic_use_msi_x && !qlcnic_use_msi) { 2782 netdev_info(netdev, "no msix or msi support, hence no rss\n"); 2783 return -EINVAL; 2784 } 2785 2786 if ((val > max_hw) || (val < 2) || !is_power_of_2(val)) { 2787 netdev_info(netdev, "rss_ring valid range [2 - %x] in " 2788 " powers of 2\n", max_hw); 2789 return -EINVAL; 2790 } 2791 return 0; 2792 2793 } 2794 2795 int qlcnic_set_max_rss(struct qlcnic_adapter *adapter, u8 data) 2796 { 2797 struct net_device *netdev = adapter->netdev; 2798 int err = 0; 2799 2800 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) 2801 return -EBUSY; 2802 2803 netif_device_detach(netdev); 2804 if (netif_running(netdev)) 2805 __qlcnic_down(adapter, netdev); 2806 qlcnic_detach(adapter); 2807 qlcnic_teardown_intr(adapter); 2808 2809 if (qlcnic_enable_msix(adapter, data)) { 2810 netdev_info(netdev, "failed setting max_rss; rss disabled\n"); 2811 qlcnic_enable_msi_legacy(adapter); 2812 } 2813 2814 if (netif_running(netdev)) { 2815 err = qlcnic_attach(adapter); 2816 if (err) 2817 goto done; 2818 err = __qlcnic_up(adapter, netdev); 2819 if (err) 2820 goto done; 2821 qlcnic_restore_indev_addr(netdev, NETDEV_UP); 2822 } 2823 done: 2824 netif_device_attach(netdev); 2825 clear_bit(__QLCNIC_RESETTING, &adapter->state); 2826 return err; 2827 } 2828 2829 #ifdef CONFIG_INET 2830 2831 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops) 2832 2833 static void 2834 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter, 2835 struct net_device *dev, unsigned long event) 2836 { 2837 struct in_device *indev; 2838 2839 indev = in_dev_get(dev); 2840 if (!indev) 2841 return; 2842 2843 for_ifa(indev) { 2844 switch (event) { 2845 case NETDEV_UP: 2846 qlcnic_config_ipaddr(adapter, 2847 ifa->ifa_address, QLCNIC_IP_UP); 2848 break; 2849 case NETDEV_DOWN: 2850 qlcnic_config_ipaddr(adapter, 2851 ifa->ifa_address, QLCNIC_IP_DOWN); 2852 break; 2853 default: 2854 break; 2855 } 2856 } endfor_ifa(indev); 2857 2858 in_dev_put(indev); 2859 } 2860 2861 static void 2862 qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event) 2863 { 2864 struct qlcnic_adapter *adapter = netdev_priv(netdev); 2865 struct net_device *dev; 2866 u16 vid; 2867 2868 qlcnic_config_indev_addr(adapter, netdev, event); 2869 2870 for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) { 2871 dev = __vlan_find_dev_deep(netdev, vid); 2872 if (!dev) 2873 continue; 2874 qlcnic_config_indev_addr(adapter, dev, event); 2875 } 2876 } 2877 2878 static int qlcnic_netdev_event(struct notifier_block *this, 2879 unsigned long event, void *ptr) 2880 { 2881 struct qlcnic_adapter *adapter; 2882 struct net_device *dev = (struct net_device *)ptr; 2883 2884 recheck: 2885 if (dev == NULL) 2886 goto done; 2887 2888 if (dev->priv_flags & IFF_802_1Q_VLAN) { 2889 dev = vlan_dev_real_dev(dev); 2890 goto recheck; 2891 } 2892 2893 if (!is_qlcnic_netdev(dev)) 2894 goto done; 2895 2896 adapter = netdev_priv(dev); 2897 2898 if (!adapter) 2899 goto done; 2900 2901 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state)) 2902 goto done; 2903 2904 qlcnic_config_indev_addr(adapter, dev, event); 2905 done: 2906 return NOTIFY_DONE; 2907 } 2908 2909 static int 2910 qlcnic_inetaddr_event(struct notifier_block *this, 2911 unsigned long event, void *ptr) 2912 { 2913 struct qlcnic_adapter *adapter; 2914 struct net_device *dev; 2915 2916 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr; 2917 2918 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL; 2919 2920 recheck: 2921 if (dev == NULL) 2922 goto done; 2923 2924 if (dev->priv_flags & IFF_802_1Q_VLAN) { 2925 dev = vlan_dev_real_dev(dev); 2926 goto recheck; 2927 } 2928 2929 if (!is_qlcnic_netdev(dev)) 2930 goto done; 2931 2932 adapter = netdev_priv(dev); 2933 2934 if (!adapter) 2935 goto done; 2936 2937 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state)) 2938 goto done; 2939 2940 switch (event) { 2941 case NETDEV_UP: 2942 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP); 2943 break; 2944 case NETDEV_DOWN: 2945 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN); 2946 break; 2947 default: 2948 break; 2949 } 2950 2951 done: 2952 return NOTIFY_DONE; 2953 } 2954 2955 static struct notifier_block qlcnic_netdev_cb = { 2956 .notifier_call = qlcnic_netdev_event, 2957 }; 2958 2959 static struct notifier_block qlcnic_inetaddr_cb = { 2960 .notifier_call = qlcnic_inetaddr_event, 2961 }; 2962 #else 2963 static void 2964 qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event) 2965 { } 2966 #endif 2967 static struct pci_error_handlers qlcnic_err_handler = { 2968 .error_detected = qlcnic_io_error_detected, 2969 .slot_reset = qlcnic_io_slot_reset, 2970 .resume = qlcnic_io_resume, 2971 }; 2972 2973 static struct pci_driver qlcnic_driver = { 2974 .name = qlcnic_driver_name, 2975 .id_table = qlcnic_pci_tbl, 2976 .probe = qlcnic_probe, 2977 .remove = qlcnic_remove, 2978 #ifdef CONFIG_PM 2979 .suspend = qlcnic_suspend, 2980 .resume = qlcnic_resume, 2981 #endif 2982 .shutdown = qlcnic_shutdown, 2983 .err_handler = &qlcnic_err_handler 2984 2985 }; 2986 2987 static int __init qlcnic_init_module(void) 2988 { 2989 int ret; 2990 2991 printk(KERN_INFO "%s\n", qlcnic_driver_string); 2992 2993 qlcnic_wq = create_singlethread_workqueue("qlcnic"); 2994 if (qlcnic_wq == NULL) { 2995 printk(KERN_ERR "qlcnic: cannot create workqueue\n"); 2996 return -ENOMEM; 2997 } 2998 2999 #ifdef CONFIG_INET 3000 register_netdevice_notifier(&qlcnic_netdev_cb); 3001 register_inetaddr_notifier(&qlcnic_inetaddr_cb); 3002 #endif 3003 3004 ret = pci_register_driver(&qlcnic_driver); 3005 if (ret) { 3006 #ifdef CONFIG_INET 3007 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb); 3008 unregister_netdevice_notifier(&qlcnic_netdev_cb); 3009 #endif 3010 destroy_workqueue(qlcnic_wq); 3011 } 3012 3013 return ret; 3014 } 3015 3016 module_init(qlcnic_init_module); 3017 3018 static void __exit qlcnic_exit_module(void) 3019 { 3020 3021 pci_unregister_driver(&qlcnic_driver); 3022 3023 #ifdef CONFIG_INET 3024 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb); 3025 unregister_netdevice_notifier(&qlcnic_netdev_cb); 3026 #endif 3027 destroy_workqueue(qlcnic_wq); 3028 } 3029 3030 module_exit(qlcnic_exit_module); 3031