1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Copyright (C) 2003 - 2009 NetXen, Inc. 4 * Copyright (C) 2009 - QLogic Corporation. 5 * All rights reserved. 6 */ 7 8 #include <linux/slab.h> 9 #include <linux/vmalloc.h> 10 #include <linux/interrupt.h> 11 #include "netxen_nic_hw.h" 12 13 #include "netxen_nic.h" 14 15 #include <linux/dma-mapping.h> 16 #include <linux/if_vlan.h> 17 #include <net/ip.h> 18 #include <linux/ipv6.h> 19 #include <linux/inetdevice.h> 20 #include <linux/sysfs.h> 21 22 MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Intelligent Ethernet Driver"); 23 MODULE_LICENSE("GPL"); 24 MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID); 25 MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME); 26 27 char netxen_nic_driver_name[] = "netxen_nic"; 28 static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v" 29 NETXEN_NIC_LINUX_VERSIONID; 30 31 static int port_mode = NETXEN_PORT_MODE_AUTO_NEG; 32 33 /* Default to restricted 1G auto-neg mode */ 34 static int wol_port_mode = 5; 35 36 static int use_msi = 1; 37 38 static int use_msi_x = 1; 39 40 static int auto_fw_reset = AUTO_FW_RESET_ENABLED; 41 module_param(auto_fw_reset, int, 0644); 42 MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled"); 43 44 static int netxen_nic_probe(struct pci_dev *pdev, 45 const struct pci_device_id *ent); 46 static void netxen_nic_remove(struct pci_dev *pdev); 47 static int netxen_nic_open(struct net_device *netdev); 48 static int netxen_nic_close(struct net_device *netdev); 49 static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *, 50 struct net_device *); 51 static void netxen_tx_timeout(struct net_device *netdev, unsigned int txqueue); 52 static void netxen_tx_timeout_task(struct work_struct *work); 53 static void netxen_fw_poll_work(struct work_struct *work); 54 static void netxen_schedule_work(struct netxen_adapter *adapter, 55 work_func_t func, int delay); 56 static void netxen_cancel_fw_work(struct netxen_adapter *adapter); 57 static int netxen_nic_poll(struct napi_struct *napi, int budget); 58 59 static void netxen_create_sysfs_entries(struct netxen_adapter *adapter); 60 static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter); 61 static void netxen_create_diag_entries(struct netxen_adapter *adapter); 62 static void netxen_remove_diag_entries(struct netxen_adapter *adapter); 63 static int nx_dev_request_aer(struct netxen_adapter *adapter); 64 static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter); 65 static int netxen_can_start_firmware(struct netxen_adapter *adapter); 66 67 static irqreturn_t netxen_intr(int irq, void *data); 68 static irqreturn_t netxen_msi_intr(int irq, void *data); 69 static irqreturn_t netxen_msix_intr(int irq, void *data); 70 71 static void netxen_free_ip_list(struct netxen_adapter *, bool); 72 static void netxen_restore_indev_addr(struct net_device *dev, unsigned long); 73 static void netxen_nic_get_stats(struct net_device *dev, 74 struct rtnl_link_stats64 *stats); 75 static int netxen_nic_set_mac(struct net_device *netdev, void *p); 76 77 /* PCI Device ID Table */ 78 #define ENTRY(device) \ 79 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \ 80 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0} 81 82 static const struct pci_device_id netxen_pci_tbl[] = { 83 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR), 84 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4), 85 ENTRY(PCI_DEVICE_ID_NX2031_4GCU), 86 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ), 87 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ), 88 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT), 89 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2), 90 ENTRY(PCI_DEVICE_ID_NX3031), 91 {0,} 92 }; 93 94 MODULE_DEVICE_TABLE(pci, netxen_pci_tbl); 95 96 static uint32_t crb_cmd_producer[4] = { 97 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1, 98 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3 99 }; 100 101 void 102 netxen_nic_update_cmd_producer(struct netxen_adapter *adapter, 103 struct nx_host_tx_ring *tx_ring) 104 { 105 NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer); 106 } 107 108 static uint32_t crb_cmd_consumer[4] = { 109 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1, 110 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3 111 }; 112 113 static inline void 114 netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter, 115 struct nx_host_tx_ring *tx_ring) 116 { 117 NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer); 118 } 119 120 static uint32_t msi_tgt_status[8] = { 121 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1, 122 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3, 123 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5, 124 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7 125 }; 126 127 static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG; 128 129 static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring) 130 { 131 struct netxen_adapter *adapter = sds_ring->adapter; 132 133 NXWRIO(adapter, sds_ring->crb_intr_mask, 0); 134 } 135 136 static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring) 137 { 138 struct netxen_adapter *adapter = sds_ring->adapter; 139 140 NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1); 141 142 if (!NETXEN_IS_MSI_FAMILY(adapter)) 143 NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff); 144 } 145 146 static int 147 netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count) 148 { 149 int size = sizeof(struct nx_host_sds_ring) * count; 150 151 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL); 152 153 return recv_ctx->sds_rings == NULL; 154 } 155 156 static void 157 netxen_free_sds_rings(struct netxen_recv_context *recv_ctx) 158 { 159 kfree(recv_ctx->sds_rings); 160 recv_ctx->sds_rings = NULL; 161 } 162 163 static int 164 netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev) 165 { 166 int ring; 167 struct nx_host_sds_ring *sds_ring; 168 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 169 170 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings)) 171 return -ENOMEM; 172 173 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 174 sds_ring = &recv_ctx->sds_rings[ring]; 175 netif_napi_add(netdev, &sds_ring->napi, netxen_nic_poll); 176 } 177 178 return 0; 179 } 180 181 static void 182 netxen_napi_del(struct netxen_adapter *adapter) 183 { 184 int ring; 185 struct nx_host_sds_ring *sds_ring; 186 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 187 188 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 189 sds_ring = &recv_ctx->sds_rings[ring]; 190 netif_napi_del(&sds_ring->napi); 191 } 192 193 netxen_free_sds_rings(&adapter->recv_ctx); 194 } 195 196 static void 197 netxen_napi_enable(struct netxen_adapter *adapter) 198 { 199 int ring; 200 struct nx_host_sds_ring *sds_ring; 201 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 202 203 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 204 sds_ring = &recv_ctx->sds_rings[ring]; 205 napi_enable(&sds_ring->napi); 206 netxen_nic_enable_int(sds_ring); 207 } 208 } 209 210 static void 211 netxen_napi_disable(struct netxen_adapter *adapter) 212 { 213 int ring; 214 struct nx_host_sds_ring *sds_ring; 215 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 216 217 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 218 sds_ring = &recv_ctx->sds_rings[ring]; 219 netxen_nic_disable_int(sds_ring); 220 napi_synchronize(&sds_ring->napi); 221 napi_disable(&sds_ring->napi); 222 } 223 } 224 225 static int nx_set_dma_mask(struct netxen_adapter *adapter) 226 { 227 struct pci_dev *pdev = adapter->pdev; 228 uint64_t mask, cmask; 229 230 adapter->pci_using_dac = 0; 231 232 mask = DMA_BIT_MASK(32); 233 cmask = DMA_BIT_MASK(32); 234 235 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 236 #ifndef CONFIG_IA64 237 mask = DMA_BIT_MASK(35); 238 #endif 239 } else { 240 mask = DMA_BIT_MASK(39); 241 cmask = mask; 242 } 243 244 if (dma_set_mask(&pdev->dev, mask) == 0 && 245 dma_set_coherent_mask(&pdev->dev, cmask) == 0) { 246 adapter->pci_using_dac = 1; 247 return 0; 248 } 249 250 return -EIO; 251 } 252 253 /* Update addressable range if firmware supports it */ 254 static int 255 nx_update_dma_mask(struct netxen_adapter *adapter) 256 { 257 int change, shift, err; 258 uint64_t mask, old_mask, old_cmask; 259 struct pci_dev *pdev = adapter->pdev; 260 261 change = 0; 262 263 shift = NXRD32(adapter, CRB_DMA_SHIFT); 264 if (shift > 32) 265 return 0; 266 267 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9)) 268 change = 1; 269 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4)) 270 change = 1; 271 272 if (change) { 273 old_mask = pdev->dma_mask; 274 old_cmask = pdev->dev.coherent_dma_mask; 275 276 mask = DMA_BIT_MASK(32+shift); 277 278 err = dma_set_mask(&pdev->dev, mask); 279 if (err) 280 goto err_out; 281 282 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 283 284 err = dma_set_coherent_mask(&pdev->dev, mask); 285 if (err) 286 goto err_out; 287 } 288 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift); 289 } 290 291 return 0; 292 293 err_out: 294 dma_set_mask(&pdev->dev, old_mask); 295 dma_set_coherent_mask(&pdev->dev, old_cmask); 296 return err; 297 } 298 299 static int 300 netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot) 301 { 302 u32 val, timeout; 303 304 if (first_boot == 0x55555555) { 305 /* This is the first boot after power up */ 306 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC); 307 308 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id)) 309 return 0; 310 311 /* PCI bus master workaround */ 312 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4)); 313 if (!(first_boot & 0x4)) { 314 first_boot |= 0x4; 315 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot); 316 NXRD32(adapter, NETXEN_PCIE_REG(0x4)); 317 } 318 319 /* This is the first boot after power up */ 320 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET); 321 if (first_boot != 0x80000f) { 322 /* clear the register for future unloads/loads */ 323 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0); 324 return -EIO; 325 } 326 327 /* Start P2 boot loader */ 328 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE); 329 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1); 330 timeout = 0; 331 do { 332 msleep(1); 333 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc)); 334 335 if (++timeout > 5000) 336 return -EIO; 337 338 } while (val == NETXEN_BDINFO_MAGIC); 339 } 340 return 0; 341 } 342 343 static void netxen_set_port_mode(struct netxen_adapter *adapter) 344 { 345 u32 val, data; 346 347 val = adapter->ahw.board_type; 348 if ((val == NETXEN_BRDTYPE_P3_HMEZ) || 349 (val == NETXEN_BRDTYPE_P3_XG_LOM)) { 350 if (port_mode == NETXEN_PORT_MODE_802_3_AP) { 351 data = NETXEN_PORT_MODE_802_3_AP; 352 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); 353 } else if (port_mode == NETXEN_PORT_MODE_XG) { 354 data = NETXEN_PORT_MODE_XG; 355 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); 356 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) { 357 data = NETXEN_PORT_MODE_AUTO_NEG_1G; 358 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); 359 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) { 360 data = NETXEN_PORT_MODE_AUTO_NEG_XG; 361 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); 362 } else { 363 data = NETXEN_PORT_MODE_AUTO_NEG; 364 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); 365 } 366 367 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) && 368 (wol_port_mode != NETXEN_PORT_MODE_XG) && 369 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) && 370 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) { 371 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG; 372 } 373 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode); 374 } 375 } 376 377 #define PCI_CAP_ID_GEN 0x10 378 379 static void netxen_pcie_strap_init(struct netxen_adapter *adapter) 380 { 381 u32 pdevfuncsave; 382 u32 c8c9value = 0; 383 u32 chicken = 0; 384 u32 control = 0; 385 int i, pos; 386 struct pci_dev *pdev; 387 388 pdev = adapter->pdev; 389 390 chicken = NXRD32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3)); 391 /* clear chicken3.25:24 */ 392 chicken &= 0xFCFFFFFF; 393 /* 394 * if gen1 and B0, set F1020 - if gen 2, do nothing 395 * if gen2 set to F1000 396 */ 397 pos = pci_find_capability(pdev, PCI_CAP_ID_GEN); 398 if (pos == 0xC0) { 399 pci_read_config_dword(pdev, pos + 0x10, &control); 400 if ((control & 0x000F0000) != 0x00020000) { 401 /* set chicken3.24 if gen1 */ 402 chicken |= 0x01000000; 403 } 404 dev_info(&adapter->pdev->dev, "Gen2 strapping detected\n"); 405 c8c9value = 0xF1000; 406 } else { 407 /* set chicken3.24 if gen1 */ 408 chicken |= 0x01000000; 409 dev_info(&adapter->pdev->dev, "Gen1 strapping detected\n"); 410 if (adapter->ahw.revision_id == NX_P3_B0) 411 c8c9value = 0xF1020; 412 else 413 c8c9value = 0; 414 } 415 416 NXWR32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3), chicken); 417 418 if (!c8c9value) 419 return; 420 421 pdevfuncsave = pdev->devfn; 422 if (pdevfuncsave & 0x07) 423 return; 424 425 for (i = 0; i < 8; i++) { 426 pci_read_config_dword(pdev, pos + 8, &control); 427 pci_read_config_dword(pdev, pos + 8, &control); 428 pci_write_config_dword(pdev, pos + 8, c8c9value); 429 pdev->devfn++; 430 } 431 pdev->devfn = pdevfuncsave; 432 } 433 434 static void netxen_set_msix_bit(struct pci_dev *pdev, int enable) 435 { 436 u32 control; 437 438 if (pdev->msix_cap) { 439 pci_read_config_dword(pdev, pdev->msix_cap, &control); 440 if (enable) 441 control |= PCI_MSIX_FLAGS_ENABLE; 442 else 443 control = 0; 444 pci_write_config_dword(pdev, pdev->msix_cap, control); 445 } 446 } 447 448 static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count) 449 { 450 int i; 451 452 for (i = 0; i < count; i++) 453 adapter->msix_entries[i].entry = i; 454 } 455 456 static int 457 netxen_read_mac_addr(struct netxen_adapter *adapter) 458 { 459 int i; 460 unsigned char *p; 461 u64 mac_addr; 462 struct net_device *netdev = adapter->netdev; 463 struct pci_dev *pdev = adapter->pdev; 464 u8 addr[ETH_ALEN]; 465 466 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 467 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0) 468 return -EIO; 469 } else { 470 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0) 471 return -EIO; 472 } 473 474 p = (unsigned char *)&mac_addr; 475 for (i = 0; i < 6; i++) 476 addr[i] = *(p + 5 - i); 477 eth_hw_addr_set(netdev, addr); 478 479 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len); 480 481 /* set station address */ 482 483 if (!is_valid_ether_addr(netdev->dev_addr)) 484 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr); 485 486 return 0; 487 } 488 489 static int netxen_nic_set_mac(struct net_device *netdev, void *p) 490 { 491 struct netxen_adapter *adapter = netdev_priv(netdev); 492 struct sockaddr *addr = p; 493 494 if (!is_valid_ether_addr(addr->sa_data)) 495 return -EADDRNOTAVAIL; 496 497 if (netif_running(netdev)) { 498 netif_device_detach(netdev); 499 netxen_napi_disable(adapter); 500 } 501 502 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len); 503 eth_hw_addr_set(netdev, addr->sa_data); 504 adapter->macaddr_set(adapter, addr->sa_data); 505 506 if (netif_running(netdev)) { 507 netif_device_attach(netdev); 508 netxen_napi_enable(adapter); 509 } 510 return 0; 511 } 512 513 static void netxen_set_multicast_list(struct net_device *dev) 514 { 515 struct netxen_adapter *adapter = netdev_priv(dev); 516 517 adapter->set_multi(dev); 518 } 519 520 static netdev_features_t netxen_fix_features(struct net_device *dev, 521 netdev_features_t features) 522 { 523 if (!(features & NETIF_F_RXCSUM)) { 524 netdev_info(dev, "disabling LRO as RXCSUM is off\n"); 525 526 features &= ~NETIF_F_LRO; 527 } 528 529 return features; 530 } 531 532 static int netxen_set_features(struct net_device *dev, 533 netdev_features_t features) 534 { 535 struct netxen_adapter *adapter = netdev_priv(dev); 536 int hw_lro; 537 538 if (!((dev->features ^ features) & NETIF_F_LRO)) 539 return 0; 540 541 hw_lro = (features & NETIF_F_LRO) ? NETXEN_NIC_LRO_ENABLED 542 : NETXEN_NIC_LRO_DISABLED; 543 544 if (netxen_config_hw_lro(adapter, hw_lro)) 545 return -EIO; 546 547 if (!(features & NETIF_F_LRO) && netxen_send_lro_cleanup(adapter)) 548 return -EIO; 549 550 return 0; 551 } 552 553 static const struct net_device_ops netxen_netdev_ops = { 554 .ndo_open = netxen_nic_open, 555 .ndo_stop = netxen_nic_close, 556 .ndo_start_xmit = netxen_nic_xmit_frame, 557 .ndo_get_stats64 = netxen_nic_get_stats, 558 .ndo_validate_addr = eth_validate_addr, 559 .ndo_set_rx_mode = netxen_set_multicast_list, 560 .ndo_set_mac_address = netxen_nic_set_mac, 561 .ndo_change_mtu = netxen_nic_change_mtu, 562 .ndo_tx_timeout = netxen_tx_timeout, 563 .ndo_fix_features = netxen_fix_features, 564 .ndo_set_features = netxen_set_features, 565 }; 566 567 static inline void netxen_set_interrupt_mode(struct netxen_adapter *adapter, 568 u32 mode) 569 { 570 NXWR32(adapter, NETXEN_INTR_MODE_REG, mode); 571 } 572 573 static inline u32 netxen_get_interrupt_mode(struct netxen_adapter *adapter) 574 { 575 return NXRD32(adapter, NETXEN_INTR_MODE_REG); 576 } 577 578 static void 579 netxen_initialize_interrupt_registers(struct netxen_adapter *adapter) 580 { 581 struct netxen_legacy_intr_set *legacy_intrp; 582 u32 tgt_status_reg, int_state_reg; 583 584 if (adapter->ahw.revision_id >= NX_P3_B0) 585 legacy_intrp = &legacy_intr[adapter->ahw.pci_func]; 586 else 587 legacy_intrp = &legacy_intr[0]; 588 589 tgt_status_reg = legacy_intrp->tgt_status_reg; 590 int_state_reg = ISR_INT_STATE_REG; 591 592 adapter->int_vec_bit = legacy_intrp->int_vec_bit; 593 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, tgt_status_reg); 594 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter, 595 legacy_intrp->tgt_mask_reg); 596 adapter->pci_int_reg = netxen_get_ioaddr(adapter, 597 legacy_intrp->pci_int_reg); 598 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR); 599 600 if (adapter->ahw.revision_id >= NX_P3_B1) 601 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter, 602 int_state_reg); 603 else 604 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter, 605 CRB_INT_VECTOR); 606 } 607 608 static int netxen_setup_msi_interrupts(struct netxen_adapter *adapter, 609 int num_msix) 610 { 611 struct pci_dev *pdev = adapter->pdev; 612 u32 value; 613 int err; 614 615 if (adapter->msix_supported) { 616 netxen_init_msix_entries(adapter, num_msix); 617 err = pci_enable_msix_range(pdev, adapter->msix_entries, 618 num_msix, num_msix); 619 if (err > 0) { 620 adapter->flags |= NETXEN_NIC_MSIX_ENABLED; 621 netxen_set_msix_bit(pdev, 1); 622 623 if (adapter->rss_supported) 624 adapter->max_sds_rings = num_msix; 625 626 dev_info(&pdev->dev, "using msi-x interrupts\n"); 627 return 0; 628 } 629 /* fall through for msi */ 630 } 631 632 if (use_msi && !pci_enable_msi(pdev)) { 633 value = msi_tgt_status[adapter->ahw.pci_func]; 634 adapter->flags |= NETXEN_NIC_MSI_ENABLED; 635 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, value); 636 adapter->msix_entries[0].vector = pdev->irq; 637 dev_info(&pdev->dev, "using msi interrupts\n"); 638 return 0; 639 } 640 641 dev_err(&pdev->dev, "Failed to acquire MSI-X/MSI interrupt vector\n"); 642 return -EIO; 643 } 644 645 static int netxen_setup_intr(struct netxen_adapter *adapter) 646 { 647 struct pci_dev *pdev = adapter->pdev; 648 int num_msix; 649 650 if (adapter->rss_supported) 651 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ? 652 MSIX_ENTRIES_PER_ADAPTER : 2; 653 else 654 num_msix = 1; 655 656 adapter->max_sds_rings = 1; 657 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED); 658 659 netxen_initialize_interrupt_registers(adapter); 660 netxen_set_msix_bit(pdev, 0); 661 662 if (adapter->portnum == 0) { 663 if (!netxen_setup_msi_interrupts(adapter, num_msix)) 664 netxen_set_interrupt_mode(adapter, NETXEN_MSI_MODE); 665 else 666 netxen_set_interrupt_mode(adapter, NETXEN_INTX_MODE); 667 } else { 668 if (netxen_get_interrupt_mode(adapter) == NETXEN_MSI_MODE && 669 netxen_setup_msi_interrupts(adapter, num_msix)) { 670 dev_err(&pdev->dev, "Co-existence of MSI-X/MSI and INTx interrupts is not supported\n"); 671 return -EIO; 672 } 673 } 674 675 if (!NETXEN_IS_MSI_FAMILY(adapter)) { 676 adapter->msix_entries[0].vector = pdev->irq; 677 dev_info(&pdev->dev, "using legacy interrupts\n"); 678 } 679 return 0; 680 } 681 682 static void 683 netxen_teardown_intr(struct netxen_adapter *adapter) 684 { 685 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) 686 pci_disable_msix(adapter->pdev); 687 if (adapter->flags & NETXEN_NIC_MSI_ENABLED) 688 pci_disable_msi(adapter->pdev); 689 } 690 691 static void 692 netxen_cleanup_pci_map(struct netxen_adapter *adapter) 693 { 694 if (adapter->ahw.db_base != NULL) 695 iounmap(adapter->ahw.db_base); 696 if (adapter->ahw.pci_base0 != NULL) 697 iounmap(adapter->ahw.pci_base0); 698 if (adapter->ahw.pci_base1 != NULL) 699 iounmap(adapter->ahw.pci_base1); 700 if (adapter->ahw.pci_base2 != NULL) 701 iounmap(adapter->ahw.pci_base2); 702 } 703 704 static int 705 netxen_setup_pci_map(struct netxen_adapter *adapter) 706 { 707 void __iomem *db_ptr = NULL; 708 709 resource_size_t mem_base, db_base; 710 unsigned long mem_len, db_len = 0; 711 712 struct pci_dev *pdev = adapter->pdev; 713 int pci_func = adapter->ahw.pci_func; 714 struct netxen_hardware_context *ahw = &adapter->ahw; 715 716 int err = 0; 717 718 /* 719 * Set the CRB window to invalid. If any register in window 0 is 720 * accessed it should set the window to 0 and then reset it to 1. 721 */ 722 adapter->ahw.crb_win = -1; 723 adapter->ahw.ocm_win = -1; 724 725 /* remap phys address */ 726 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ 727 mem_len = pci_resource_len(pdev, 0); 728 729 /* 128 Meg of memory */ 730 if (mem_len == NETXEN_PCI_128MB_SIZE) { 731 732 ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE); 733 ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START, 734 SECOND_PAGE_GROUP_SIZE); 735 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START, 736 THIRD_PAGE_GROUP_SIZE); 737 if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL || 738 ahw->pci_base2 == NULL) { 739 dev_err(&pdev->dev, "failed to map PCI bar 0\n"); 740 err = -EIO; 741 goto err_out; 742 } 743 744 ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE; 745 746 } else if (mem_len == NETXEN_PCI_32MB_SIZE) { 747 748 ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE); 749 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START - 750 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE); 751 if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) { 752 dev_err(&pdev->dev, "failed to map PCI bar 0\n"); 753 err = -EIO; 754 goto err_out; 755 } 756 757 } else if (mem_len == NETXEN_PCI_2MB_SIZE) { 758 759 ahw->pci_base0 = pci_ioremap_bar(pdev, 0); 760 if (ahw->pci_base0 == NULL) { 761 dev_err(&pdev->dev, "failed to map PCI bar 0\n"); 762 return -EIO; 763 } 764 ahw->pci_len0 = mem_len; 765 } else { 766 return -EIO; 767 } 768 769 netxen_setup_hwops(adapter); 770 771 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20)); 772 773 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) { 774 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter, 775 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func))); 776 777 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 778 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter, 779 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func))); 780 } 781 782 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 783 goto skip_doorbell; 784 785 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ 786 db_len = pci_resource_len(pdev, 4); 787 788 if (db_len == 0) { 789 printk(KERN_ERR "%s: doorbell is disabled\n", 790 netxen_nic_driver_name); 791 err = -EIO; 792 goto err_out; 793 } 794 795 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES); 796 if (!db_ptr) { 797 printk(KERN_ERR "%s: Failed to allocate doorbell map.", 798 netxen_nic_driver_name); 799 err = -EIO; 800 goto err_out; 801 } 802 803 skip_doorbell: 804 adapter->ahw.db_base = db_ptr; 805 adapter->ahw.db_len = db_len; 806 return 0; 807 808 err_out: 809 netxen_cleanup_pci_map(adapter); 810 return err; 811 } 812 813 static void 814 netxen_check_options(struct netxen_adapter *adapter) 815 { 816 u32 fw_major, fw_minor, fw_build, prev_fw_version; 817 char brd_name[NETXEN_MAX_SHORT_NAME]; 818 char serial_num[32]; 819 int i, offset, val, err; 820 __le32 *ptr32; 821 struct pci_dev *pdev = adapter->pdev; 822 823 adapter->driver_mismatch = 0; 824 825 ptr32 = (__le32 *)&serial_num; 826 offset = NX_FW_SERIAL_NUM_OFFSET; 827 for (i = 0; i < 8; i++) { 828 err = netxen_rom_fast_read(adapter, offset, &val); 829 if (err) { 830 dev_err(&pdev->dev, "error reading board info\n"); 831 adapter->driver_mismatch = 1; 832 return; 833 } 834 ptr32[i] = cpu_to_le32(val); 835 offset += sizeof(u32); 836 } 837 838 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR); 839 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR); 840 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB); 841 prev_fw_version = adapter->fw_version; 842 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build); 843 844 /* Get FW Mini Coredump template and store it */ 845 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 846 if (adapter->mdump.md_template == NULL || 847 adapter->fw_version > prev_fw_version) { 848 kfree(adapter->mdump.md_template); 849 adapter->mdump.md_template = NULL; 850 err = netxen_setup_minidump(adapter); 851 if (err) 852 dev_err(&adapter->pdev->dev, 853 "Failed to setup minidump rcode = %d\n", err); 854 } 855 } 856 857 if (adapter->portnum == 0) { 858 if (netxen_nic_get_brd_name_by_type(adapter->ahw.board_type, 859 brd_name)) 860 strcpy(serial_num, "Unknown"); 861 862 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n", 863 module_name(THIS_MODULE), 864 brd_name, serial_num, adapter->ahw.revision_id); 865 } 866 867 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) { 868 adapter->driver_mismatch = 1; 869 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n", 870 fw_major, fw_minor, fw_build); 871 return; 872 } 873 874 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 875 i = NXRD32(adapter, NETXEN_SRE_MISC); 876 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0; 877 } 878 879 dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d [%s]\n", 880 NETXEN_NIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build, 881 adapter->ahw.cut_through ? "cut-through" : "legacy"); 882 883 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222)) 884 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1); 885 886 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) { 887 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G; 888 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G; 889 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) { 890 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G; 891 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G; 892 } 893 894 adapter->msix_supported = 0; 895 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 896 adapter->msix_supported = !!use_msi_x; 897 adapter->rss_supported = !!use_msi_x; 898 } else { 899 u32 flashed_ver = 0; 900 netxen_rom_fast_read(adapter, 901 NX_FW_VERSION_OFFSET, (int *)&flashed_ver); 902 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver); 903 904 if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) { 905 switch (adapter->ahw.board_type) { 906 case NETXEN_BRDTYPE_P2_SB31_10G: 907 case NETXEN_BRDTYPE_P2_SB31_10G_CX4: 908 adapter->msix_supported = !!use_msi_x; 909 adapter->rss_supported = !!use_msi_x; 910 break; 911 default: 912 break; 913 } 914 } 915 } 916 917 adapter->num_txd = MAX_CMD_DESCRIPTORS; 918 919 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 920 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS; 921 adapter->max_rds_rings = 3; 922 } else { 923 adapter->num_lro_rxd = 0; 924 adapter->max_rds_rings = 2; 925 } 926 } 927 928 static int 929 netxen_start_firmware(struct netxen_adapter *adapter) 930 { 931 int val, err, first_boot; 932 struct pci_dev *pdev = adapter->pdev; 933 934 /* required for NX2031 dummy dma */ 935 err = nx_set_dma_mask(adapter); 936 if (err) 937 return err; 938 939 err = netxen_can_start_firmware(adapter); 940 941 if (err < 0) 942 return err; 943 944 if (!err) 945 goto wait_init; 946 947 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc)); 948 949 err = netxen_check_hw_init(adapter, first_boot); 950 if (err) { 951 dev_err(&pdev->dev, "error in init HW init sequence\n"); 952 return err; 953 } 954 955 netxen_request_firmware(adapter); 956 957 err = netxen_need_fw_reset(adapter); 958 if (err < 0) 959 goto err_out; 960 if (err == 0) 961 goto pcie_strap_init; 962 963 if (first_boot != 0x55555555) { 964 NXWR32(adapter, CRB_CMDPEG_STATE, 0); 965 netxen_pinit_from_rom(adapter); 966 msleep(1); 967 } 968 969 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555); 970 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0); 971 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0); 972 973 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 974 netxen_set_port_mode(adapter); 975 976 err = netxen_load_firmware(adapter); 977 if (err) 978 goto err_out; 979 980 netxen_release_firmware(adapter); 981 982 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 983 984 /* Initialize multicast addr pool owners */ 985 val = 0x7654; 986 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) 987 val |= 0x0f000000; 988 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val); 989 990 } 991 992 err = netxen_init_dummy_dma(adapter); 993 if (err) 994 goto err_out; 995 996 /* 997 * Tell the hardware our version number. 998 */ 999 val = (_NETXEN_NIC_LINUX_MAJOR << 16) 1000 | ((_NETXEN_NIC_LINUX_MINOR << 8)) 1001 | (_NETXEN_NIC_LINUX_SUBVERSION); 1002 NXWR32(adapter, CRB_DRIVER_VERSION, val); 1003 1004 pcie_strap_init: 1005 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1006 netxen_pcie_strap_init(adapter); 1007 1008 wait_init: 1009 /* Handshake with the card before we register the devices. */ 1010 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE); 1011 if (err) { 1012 netxen_free_dummy_dma(adapter); 1013 goto err_out; 1014 } 1015 1016 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY); 1017 1018 nx_update_dma_mask(adapter); 1019 1020 netxen_check_options(adapter); 1021 1022 adapter->need_fw_reset = 0; 1023 1024 /* fall through and release firmware */ 1025 1026 err_out: 1027 netxen_release_firmware(adapter); 1028 return err; 1029 } 1030 1031 static int 1032 netxen_nic_request_irq(struct netxen_adapter *adapter) 1033 { 1034 irq_handler_t handler; 1035 struct nx_host_sds_ring *sds_ring; 1036 int err, ring; 1037 1038 unsigned long flags = 0; 1039 struct net_device *netdev = adapter->netdev; 1040 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 1041 1042 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) 1043 handler = netxen_msix_intr; 1044 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED) 1045 handler = netxen_msi_intr; 1046 else { 1047 flags |= IRQF_SHARED; 1048 handler = netxen_intr; 1049 } 1050 adapter->irq = netdev->irq; 1051 1052 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 1053 sds_ring = &recv_ctx->sds_rings[ring]; 1054 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring); 1055 err = request_irq(sds_ring->irq, handler, 1056 flags, sds_ring->name, sds_ring); 1057 if (err) 1058 return err; 1059 } 1060 1061 return 0; 1062 } 1063 1064 static void 1065 netxen_nic_free_irq(struct netxen_adapter *adapter) 1066 { 1067 int ring; 1068 struct nx_host_sds_ring *sds_ring; 1069 1070 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 1071 1072 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 1073 sds_ring = &recv_ctx->sds_rings[ring]; 1074 free_irq(sds_ring->irq, sds_ring); 1075 } 1076 } 1077 1078 static void 1079 netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter) 1080 { 1081 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT; 1082 adapter->coal.normal.data.rx_time_us = 1083 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US; 1084 adapter->coal.normal.data.rx_packets = 1085 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS; 1086 adapter->coal.normal.data.tx_time_us = 1087 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US; 1088 adapter->coal.normal.data.tx_packets = 1089 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS; 1090 } 1091 1092 /* with rtnl_lock */ 1093 static int 1094 __netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev) 1095 { 1096 int err; 1097 1098 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 1099 return -EIO; 1100 1101 err = adapter->init_port(adapter, adapter->physical_port); 1102 if (err) { 1103 printk(KERN_ERR "%s: Failed to initialize port %d\n", 1104 netxen_nic_driver_name, adapter->portnum); 1105 return err; 1106 } 1107 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 1108 adapter->macaddr_set(adapter, adapter->mac_addr); 1109 1110 adapter->set_multi(netdev); 1111 adapter->set_mtu(adapter, netdev->mtu); 1112 1113 adapter->ahw.linkup = 0; 1114 1115 if (adapter->max_sds_rings > 1) 1116 netxen_config_rss(adapter, 1); 1117 1118 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1119 netxen_config_intr_coalesce(adapter); 1120 1121 if (netdev->features & NETIF_F_LRO) 1122 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED); 1123 1124 netxen_napi_enable(adapter); 1125 1126 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION) 1127 netxen_linkevent_request(adapter, 1); 1128 else 1129 netxen_nic_set_link_parameters(adapter); 1130 1131 set_bit(__NX_DEV_UP, &adapter->state); 1132 return 0; 1133 } 1134 1135 /* Usage: During resume and firmware recovery module.*/ 1136 1137 static inline int 1138 netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev) 1139 { 1140 int err = 0; 1141 1142 rtnl_lock(); 1143 if (netif_running(netdev)) 1144 err = __netxen_nic_up(adapter, netdev); 1145 rtnl_unlock(); 1146 1147 return err; 1148 } 1149 1150 /* with rtnl_lock */ 1151 static void 1152 __netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) 1153 { 1154 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 1155 return; 1156 1157 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state)) 1158 return; 1159 1160 smp_mb(); 1161 netif_carrier_off(netdev); 1162 netif_tx_disable(netdev); 1163 1164 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION) 1165 netxen_linkevent_request(adapter, 0); 1166 1167 if (adapter->stop_port) 1168 adapter->stop_port(adapter); 1169 1170 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1171 netxen_p3_free_mac_list(adapter); 1172 1173 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE); 1174 1175 netxen_napi_disable(adapter); 1176 1177 netxen_release_tx_buffers(adapter); 1178 } 1179 1180 /* Usage: During suspend and firmware recovery module */ 1181 1182 static inline void 1183 netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) 1184 { 1185 rtnl_lock(); 1186 if (netif_running(netdev)) 1187 __netxen_nic_down(adapter, netdev); 1188 rtnl_unlock(); 1189 1190 } 1191 1192 static int 1193 netxen_nic_attach(struct netxen_adapter *adapter) 1194 { 1195 struct net_device *netdev = adapter->netdev; 1196 struct pci_dev *pdev = adapter->pdev; 1197 int err, ring; 1198 struct nx_host_rds_ring *rds_ring; 1199 struct nx_host_tx_ring *tx_ring; 1200 u32 capab2; 1201 1202 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) 1203 return 0; 1204 1205 err = netxen_init_firmware(adapter); 1206 if (err) 1207 return err; 1208 1209 adapter->flags &= ~NETXEN_FW_MSS_CAP; 1210 if (adapter->capabilities & NX_FW_CAPABILITY_MORE_CAPS) { 1211 capab2 = NXRD32(adapter, CRB_FW_CAPABILITIES_2); 1212 if (capab2 & NX_FW_CAPABILITY_2_LRO_MAX_TCP_SEG) 1213 adapter->flags |= NETXEN_FW_MSS_CAP; 1214 } 1215 1216 err = netxen_napi_add(adapter, netdev); 1217 if (err) 1218 return err; 1219 1220 err = netxen_alloc_sw_resources(adapter); 1221 if (err) { 1222 printk(KERN_ERR "%s: Error in setting sw resources\n", 1223 netdev->name); 1224 return err; 1225 } 1226 1227 err = netxen_alloc_hw_resources(adapter); 1228 if (err) { 1229 printk(KERN_ERR "%s: Error in setting hw resources\n", 1230 netdev->name); 1231 goto err_out_free_sw; 1232 } 1233 1234 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 1235 tx_ring = adapter->tx_ring; 1236 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter, 1237 crb_cmd_producer[adapter->portnum]); 1238 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter, 1239 crb_cmd_consumer[adapter->portnum]); 1240 1241 tx_ring->producer = 0; 1242 tx_ring->sw_consumer = 0; 1243 1244 netxen_nic_update_cmd_producer(adapter, tx_ring); 1245 netxen_nic_update_cmd_consumer(adapter, tx_ring); 1246 } 1247 1248 for (ring = 0; ring < adapter->max_rds_rings; ring++) { 1249 rds_ring = &adapter->recv_ctx.rds_rings[ring]; 1250 netxen_post_rx_buffers(adapter, ring, rds_ring); 1251 } 1252 1253 err = netxen_nic_request_irq(adapter); 1254 if (err) { 1255 dev_err(&pdev->dev, "%s: failed to setup interrupt\n", 1256 netdev->name); 1257 goto err_out_free_rxbuf; 1258 } 1259 1260 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1261 netxen_nic_init_coalesce_defaults(adapter); 1262 1263 netxen_create_sysfs_entries(adapter); 1264 1265 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC; 1266 return 0; 1267 1268 err_out_free_rxbuf: 1269 netxen_release_rx_buffers(adapter); 1270 netxen_free_hw_resources(adapter); 1271 err_out_free_sw: 1272 netxen_free_sw_resources(adapter); 1273 return err; 1274 } 1275 1276 static void 1277 netxen_nic_detach(struct netxen_adapter *adapter) 1278 { 1279 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 1280 return; 1281 1282 netxen_remove_sysfs_entries(adapter); 1283 1284 netxen_free_hw_resources(adapter); 1285 netxen_release_rx_buffers(adapter); 1286 netxen_nic_free_irq(adapter); 1287 netxen_napi_del(adapter); 1288 netxen_free_sw_resources(adapter); 1289 1290 adapter->is_up = 0; 1291 } 1292 1293 int 1294 netxen_nic_reset_context(struct netxen_adapter *adapter) 1295 { 1296 int err = 0; 1297 struct net_device *netdev = adapter->netdev; 1298 1299 if (test_and_set_bit(__NX_RESETTING, &adapter->state)) 1300 return -EBUSY; 1301 1302 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { 1303 1304 netif_device_detach(netdev); 1305 1306 if (netif_running(netdev)) 1307 __netxen_nic_down(adapter, netdev); 1308 1309 netxen_nic_detach(adapter); 1310 1311 if (netif_running(netdev)) { 1312 err = netxen_nic_attach(adapter); 1313 if (!err) 1314 err = __netxen_nic_up(adapter, netdev); 1315 1316 if (err) 1317 goto done; 1318 } 1319 1320 netif_device_attach(netdev); 1321 } 1322 1323 done: 1324 clear_bit(__NX_RESETTING, &adapter->state); 1325 return err; 1326 } 1327 1328 static int 1329 netxen_setup_netdev(struct netxen_adapter *adapter, 1330 struct net_device *netdev) 1331 { 1332 int err = 0; 1333 struct pci_dev *pdev = adapter->pdev; 1334 1335 adapter->mc_enabled = 0; 1336 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1337 adapter->max_mc_count = 38; 1338 else 1339 adapter->max_mc_count = 16; 1340 1341 netdev->netdev_ops = &netxen_netdev_ops; 1342 netdev->watchdog_timeo = 5*HZ; 1343 1344 netxen_nic_change_mtu(netdev, netdev->mtu); 1345 1346 netdev->ethtool_ops = &netxen_nic_ethtool_ops; 1347 1348 netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO | 1349 NETIF_F_RXCSUM; 1350 1351 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1352 netdev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6; 1353 1354 netdev->vlan_features |= netdev->hw_features; 1355 1356 if (adapter->pci_using_dac) { 1357 netdev->features |= NETIF_F_HIGHDMA; 1358 netdev->vlan_features |= NETIF_F_HIGHDMA; 1359 } 1360 1361 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX) 1362 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX; 1363 1364 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO) 1365 netdev->hw_features |= NETIF_F_LRO; 1366 1367 netdev->features |= netdev->hw_features; 1368 1369 netdev->irq = adapter->msix_entries[0].vector; 1370 1371 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task); 1372 1373 if (netxen_read_mac_addr(adapter)) 1374 dev_warn(&pdev->dev, "failed to read mac addr\n"); 1375 1376 netif_carrier_off(netdev); 1377 1378 err = register_netdev(netdev); 1379 if (err) { 1380 dev_err(&pdev->dev, "failed to register net device\n"); 1381 return err; 1382 } 1383 1384 return 0; 1385 } 1386 1387 #define NETXEN_ULA_ADAPTER_KEY (0xdaddad01) 1388 #define NETXEN_NON_ULA_ADAPTER_KEY (0xdaddad00) 1389 1390 static void netxen_read_ula_info(struct netxen_adapter *adapter) 1391 { 1392 u32 temp; 1393 1394 /* Print ULA info only once for an adapter */ 1395 if (adapter->portnum != 0) 1396 return; 1397 1398 temp = NXRD32(adapter, NETXEN_ULA_KEY); 1399 switch (temp) { 1400 case NETXEN_ULA_ADAPTER_KEY: 1401 dev_info(&adapter->pdev->dev, "ULA adapter"); 1402 break; 1403 case NETXEN_NON_ULA_ADAPTER_KEY: 1404 dev_info(&adapter->pdev->dev, "non ULA adapter"); 1405 break; 1406 default: 1407 break; 1408 } 1409 1410 return; 1411 } 1412 1413 #ifdef CONFIG_PCIEAER 1414 static void netxen_mask_aer_correctable(struct netxen_adapter *adapter) 1415 { 1416 struct pci_dev *pdev = adapter->pdev; 1417 struct pci_dev *root = pdev->bus->self; 1418 u32 aer_pos; 1419 1420 /* root bus? */ 1421 if (!root) 1422 return; 1423 1424 if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM && 1425 adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP) 1426 return; 1427 1428 if (pci_pcie_type(root) != PCI_EXP_TYPE_ROOT_PORT) 1429 return; 1430 1431 aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR); 1432 if (!aer_pos) 1433 return; 1434 1435 pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff); 1436 } 1437 #endif 1438 1439 static int 1440 netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 1441 { 1442 struct net_device *netdev = NULL; 1443 struct netxen_adapter *adapter = NULL; 1444 int i = 0, err; 1445 int pci_func_id = PCI_FUNC(pdev->devfn); 1446 uint8_t revision_id; 1447 u32 val; 1448 1449 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) { 1450 pr_warn("%s: chip revisions between 0x%x-0x%x will not be enabled\n", 1451 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1); 1452 return -ENODEV; 1453 } 1454 1455 if ((err = pci_enable_device(pdev))) 1456 return err; 1457 1458 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { 1459 err = -ENODEV; 1460 goto err_out_disable_pdev; 1461 } 1462 1463 if ((err = pci_request_regions(pdev, netxen_nic_driver_name))) 1464 goto err_out_disable_pdev; 1465 1466 pci_set_master(pdev); 1467 1468 netdev = alloc_etherdev(sizeof(struct netxen_adapter)); 1469 if(!netdev) { 1470 err = -ENOMEM; 1471 goto err_out_free_res; 1472 } 1473 1474 SET_NETDEV_DEV(netdev, &pdev->dev); 1475 1476 adapter = netdev_priv(netdev); 1477 adapter->netdev = netdev; 1478 adapter->pdev = pdev; 1479 adapter->ahw.pci_func = pci_func_id; 1480 1481 revision_id = pdev->revision; 1482 adapter->ahw.revision_id = revision_id; 1483 1484 rwlock_init(&adapter->ahw.crb_lock); 1485 spin_lock_init(&adapter->ahw.mem_lock); 1486 1487 spin_lock_init(&adapter->tx_clean_lock); 1488 INIT_LIST_HEAD(&adapter->mac_list); 1489 INIT_LIST_HEAD(&adapter->ip_list); 1490 1491 err = netxen_setup_pci_map(adapter); 1492 if (err) 1493 goto err_out_free_netdev; 1494 1495 /* This will be reset for mezz cards */ 1496 adapter->portnum = pci_func_id; 1497 1498 err = netxen_nic_get_board_info(adapter); 1499 if (err) { 1500 dev_err(&pdev->dev, "Error getting board config info.\n"); 1501 goto err_out_iounmap; 1502 } 1503 1504 #ifdef CONFIG_PCIEAER 1505 netxen_mask_aer_correctable(adapter); 1506 #endif 1507 1508 /* Mezz cards have PCI function 0,2,3 enabled */ 1509 switch (adapter->ahw.board_type) { 1510 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ: 1511 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ: 1512 if (pci_func_id >= 2) 1513 adapter->portnum = pci_func_id - 2; 1514 break; 1515 default: 1516 break; 1517 } 1518 1519 err = netxen_check_flash_fw_compatibility(adapter); 1520 if (err) 1521 goto err_out_iounmap; 1522 1523 if (adapter->portnum == 0) { 1524 val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 1525 if (val != 0xffffffff && val != 0) { 1526 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0); 1527 adapter->need_fw_reset = 1; 1528 } 1529 } 1530 1531 err = netxen_start_firmware(adapter); 1532 if (err) 1533 goto err_out_decr_ref; 1534 1535 /* 1536 * See if the firmware gave us a virtual-physical port mapping. 1537 */ 1538 adapter->physical_port = adapter->portnum; 1539 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 1540 i = NXRD32(adapter, CRB_V2P(adapter->portnum)); 1541 if (i != 0x55555555) 1542 adapter->physical_port = i; 1543 } 1544 1545 /* MTU range: 0 - 8000 (P2) or 9600 (P3) */ 1546 netdev->min_mtu = 0; 1547 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1548 netdev->max_mtu = P3_MAX_MTU; 1549 else 1550 netdev->max_mtu = P2_MAX_MTU; 1551 1552 netxen_nic_clear_stats(adapter); 1553 1554 err = netxen_setup_intr(adapter); 1555 1556 if (err) { 1557 dev_err(&adapter->pdev->dev, 1558 "Failed to setup interrupts, error = %d\n", err); 1559 goto err_out_disable_msi; 1560 } 1561 1562 netxen_read_ula_info(adapter); 1563 1564 err = netxen_setup_netdev(adapter, netdev); 1565 if (err) 1566 goto err_out_disable_msi; 1567 1568 pci_set_drvdata(pdev, adapter); 1569 1570 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 1571 1572 switch (adapter->ahw.port_type) { 1573 case NETXEN_NIC_GBE: 1574 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n", 1575 adapter->netdev->name); 1576 break; 1577 case NETXEN_NIC_XGBE: 1578 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n", 1579 adapter->netdev->name); 1580 break; 1581 } 1582 1583 netxen_create_diag_entries(adapter); 1584 1585 return 0; 1586 1587 err_out_disable_msi: 1588 netxen_teardown_intr(adapter); 1589 1590 netxen_free_dummy_dma(adapter); 1591 1592 err_out_decr_ref: 1593 nx_decr_dev_ref_cnt(adapter); 1594 1595 err_out_iounmap: 1596 netxen_cleanup_pci_map(adapter); 1597 1598 err_out_free_netdev: 1599 free_netdev(netdev); 1600 1601 err_out_free_res: 1602 pci_release_regions(pdev); 1603 1604 err_out_disable_pdev: 1605 pci_disable_device(pdev); 1606 return err; 1607 } 1608 1609 static 1610 void netxen_cleanup_minidump(struct netxen_adapter *adapter) 1611 { 1612 kfree(adapter->mdump.md_template); 1613 adapter->mdump.md_template = NULL; 1614 1615 if (adapter->mdump.md_capture_buff) { 1616 vfree(adapter->mdump.md_capture_buff); 1617 adapter->mdump.md_capture_buff = NULL; 1618 } 1619 } 1620 1621 static void netxen_nic_remove(struct pci_dev *pdev) 1622 { 1623 struct netxen_adapter *adapter; 1624 struct net_device *netdev; 1625 1626 adapter = pci_get_drvdata(pdev); 1627 if (adapter == NULL) 1628 return; 1629 1630 netdev = adapter->netdev; 1631 1632 netxen_cancel_fw_work(adapter); 1633 1634 unregister_netdev(netdev); 1635 1636 cancel_work_sync(&adapter->tx_timeout_task); 1637 1638 netxen_free_ip_list(adapter, false); 1639 netxen_nic_detach(adapter); 1640 1641 nx_decr_dev_ref_cnt(adapter); 1642 1643 if (adapter->portnum == 0) 1644 netxen_free_dummy_dma(adapter); 1645 1646 clear_bit(__NX_RESETTING, &adapter->state); 1647 1648 netxen_teardown_intr(adapter); 1649 netxen_set_interrupt_mode(adapter, 0); 1650 netxen_remove_diag_entries(adapter); 1651 1652 netxen_cleanup_pci_map(adapter); 1653 1654 netxen_release_firmware(adapter); 1655 1656 if (NX_IS_REVISION_P3(pdev->revision)) 1657 netxen_cleanup_minidump(adapter); 1658 1659 pci_release_regions(pdev); 1660 pci_disable_device(pdev); 1661 1662 free_netdev(netdev); 1663 } 1664 1665 static void netxen_nic_detach_func(struct netxen_adapter *adapter) 1666 { 1667 struct net_device *netdev = adapter->netdev; 1668 1669 netif_device_detach(netdev); 1670 1671 netxen_cancel_fw_work(adapter); 1672 1673 if (netif_running(netdev)) 1674 netxen_nic_down(adapter, netdev); 1675 1676 cancel_work_sync(&adapter->tx_timeout_task); 1677 1678 netxen_nic_detach(adapter); 1679 1680 if (adapter->portnum == 0) 1681 netxen_free_dummy_dma(adapter); 1682 1683 nx_decr_dev_ref_cnt(adapter); 1684 1685 clear_bit(__NX_RESETTING, &adapter->state); 1686 } 1687 1688 static int netxen_nic_attach_late_func(struct pci_dev *pdev) 1689 { 1690 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1691 struct net_device *netdev = adapter->netdev; 1692 int err; 1693 1694 pci_set_master(pdev); 1695 1696 adapter->ahw.crb_win = -1; 1697 adapter->ahw.ocm_win = -1; 1698 1699 err = netxen_start_firmware(adapter); 1700 if (err) { 1701 dev_err(&pdev->dev, "failed to start firmware\n"); 1702 return err; 1703 } 1704 1705 if (netif_running(netdev)) { 1706 err = netxen_nic_attach(adapter); 1707 if (err) 1708 goto err_out; 1709 1710 err = netxen_nic_up(adapter, netdev); 1711 if (err) 1712 goto err_out_detach; 1713 1714 netxen_restore_indev_addr(netdev, NETDEV_UP); 1715 } 1716 1717 netif_device_attach(netdev); 1718 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 1719 return 0; 1720 1721 err_out_detach: 1722 netxen_nic_detach(adapter); 1723 err_out: 1724 nx_decr_dev_ref_cnt(adapter); 1725 return err; 1726 } 1727 1728 static int netxen_nic_attach_func(struct pci_dev *pdev) 1729 { 1730 int err; 1731 1732 err = pci_enable_device(pdev); 1733 if (err) 1734 return err; 1735 1736 pci_set_power_state(pdev, PCI_D0); 1737 pci_restore_state(pdev); 1738 1739 return netxen_nic_attach_late_func(pdev); 1740 } 1741 1742 static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev, 1743 pci_channel_state_t state) 1744 { 1745 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1746 1747 if (state == pci_channel_io_perm_failure) 1748 return PCI_ERS_RESULT_DISCONNECT; 1749 1750 if (nx_dev_request_aer(adapter)) 1751 return PCI_ERS_RESULT_RECOVERED; 1752 1753 netxen_nic_detach_func(adapter); 1754 1755 pci_disable_device(pdev); 1756 1757 return PCI_ERS_RESULT_NEED_RESET; 1758 } 1759 1760 static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev) 1761 { 1762 int err = 0; 1763 1764 err = netxen_nic_attach_func(pdev); 1765 1766 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED; 1767 } 1768 1769 static void netxen_nic_shutdown(struct pci_dev *pdev) 1770 { 1771 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1772 1773 netxen_nic_detach_func(adapter); 1774 1775 if (pci_save_state(pdev)) 1776 return; 1777 1778 if (netxen_nic_wol_supported(adapter)) { 1779 pci_enable_wake(pdev, PCI_D3cold, 1); 1780 pci_enable_wake(pdev, PCI_D3hot, 1); 1781 } 1782 1783 pci_disable_device(pdev); 1784 } 1785 1786 static int __maybe_unused 1787 netxen_nic_suspend(struct device *dev_d) 1788 { 1789 struct netxen_adapter *adapter = dev_get_drvdata(dev_d); 1790 1791 netxen_nic_detach_func(adapter); 1792 1793 if (netxen_nic_wol_supported(adapter)) 1794 device_wakeup_enable(dev_d); 1795 1796 return 0; 1797 } 1798 1799 static int __maybe_unused 1800 netxen_nic_resume(struct device *dev_d) 1801 { 1802 return netxen_nic_attach_late_func(to_pci_dev(dev_d)); 1803 } 1804 1805 static int netxen_nic_open(struct net_device *netdev) 1806 { 1807 struct netxen_adapter *adapter = netdev_priv(netdev); 1808 int err = 0; 1809 1810 if (adapter->driver_mismatch) 1811 return -EIO; 1812 1813 err = netxen_nic_attach(adapter); 1814 if (err) 1815 return err; 1816 1817 err = __netxen_nic_up(adapter, netdev); 1818 if (err) 1819 goto err_out; 1820 1821 netif_start_queue(netdev); 1822 1823 return 0; 1824 1825 err_out: 1826 netxen_nic_detach(adapter); 1827 return err; 1828 } 1829 1830 /* 1831 * netxen_nic_close - Disables a network interface entry point 1832 */ 1833 static int netxen_nic_close(struct net_device *netdev) 1834 { 1835 struct netxen_adapter *adapter = netdev_priv(netdev); 1836 1837 __netxen_nic_down(adapter, netdev); 1838 return 0; 1839 } 1840 1841 static void 1842 netxen_tso_check(struct net_device *netdev, 1843 struct nx_host_tx_ring *tx_ring, 1844 struct cmd_desc_type0 *first_desc, 1845 struct sk_buff *skb) 1846 { 1847 u8 opcode = TX_ETHER_PKT; 1848 __be16 protocol = skb->protocol; 1849 u16 flags = 0, vid = 0; 1850 u32 producer; 1851 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0; 1852 struct cmd_desc_type0 *hwdesc; 1853 struct vlan_ethhdr *vh; 1854 1855 if (protocol == cpu_to_be16(ETH_P_8021Q)) { 1856 1857 vh = skb_vlan_eth_hdr(skb); 1858 protocol = vh->h_vlan_encapsulated_proto; 1859 flags = FLAGS_VLAN_TAGGED; 1860 1861 } else if (skb_vlan_tag_present(skb)) { 1862 flags = FLAGS_VLAN_OOB; 1863 vid = skb_vlan_tag_get(skb); 1864 netxen_set_tx_vlan_tci(first_desc, vid); 1865 vlan_oob = 1; 1866 } 1867 1868 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) && 1869 skb_shinfo(skb)->gso_size > 0) { 1870 1871 hdr_len = skb_tcp_all_headers(skb); 1872 1873 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); 1874 first_desc->total_hdr_length = hdr_len; 1875 if (vlan_oob) { 1876 first_desc->total_hdr_length += VLAN_HLEN; 1877 first_desc->tcp_hdr_offset = VLAN_HLEN; 1878 first_desc->ip_hdr_offset = VLAN_HLEN; 1879 /* Only in case of TSO on vlan device */ 1880 flags |= FLAGS_VLAN_TAGGED; 1881 } 1882 1883 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ? 1884 TX_TCP_LSO6 : TX_TCP_LSO; 1885 tso = 1; 1886 1887 } else if (skb->ip_summed == CHECKSUM_PARTIAL) { 1888 u8 l4proto; 1889 1890 if (protocol == cpu_to_be16(ETH_P_IP)) { 1891 l4proto = ip_hdr(skb)->protocol; 1892 1893 if (l4proto == IPPROTO_TCP) 1894 opcode = TX_TCP_PKT; 1895 else if(l4proto == IPPROTO_UDP) 1896 opcode = TX_UDP_PKT; 1897 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) { 1898 l4proto = ipv6_hdr(skb)->nexthdr; 1899 1900 if (l4proto == IPPROTO_TCP) 1901 opcode = TX_TCPV6_PKT; 1902 else if(l4proto == IPPROTO_UDP) 1903 opcode = TX_UDPV6_PKT; 1904 } 1905 } 1906 1907 first_desc->tcp_hdr_offset += skb_transport_offset(skb); 1908 first_desc->ip_hdr_offset += skb_network_offset(skb); 1909 netxen_set_tx_flags_opcode(first_desc, flags, opcode); 1910 1911 if (!tso) 1912 return; 1913 1914 /* For LSO, we need to copy the MAC/IP/TCP headers into 1915 * the descriptor ring 1916 */ 1917 producer = tx_ring->producer; 1918 copied = 0; 1919 offset = 2; 1920 1921 if (vlan_oob) { 1922 /* Create a TSO vlan header template for firmware */ 1923 1924 hwdesc = &tx_ring->desc_head[producer]; 1925 tx_ring->cmd_buf_arr[producer].skb = NULL; 1926 1927 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset, 1928 hdr_len + VLAN_HLEN); 1929 1930 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2); 1931 skb_copy_from_linear_data(skb, vh, 12); 1932 vh->h_vlan_proto = htons(ETH_P_8021Q); 1933 vh->h_vlan_TCI = htons(vid); 1934 skb_copy_from_linear_data_offset(skb, 12, 1935 (char *)vh + 16, copy_len - 16); 1936 1937 copied = copy_len - VLAN_HLEN; 1938 offset = 0; 1939 1940 producer = get_next_index(producer, tx_ring->num_desc); 1941 } 1942 1943 while (copied < hdr_len) { 1944 1945 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset, 1946 (hdr_len - copied)); 1947 1948 hwdesc = &tx_ring->desc_head[producer]; 1949 tx_ring->cmd_buf_arr[producer].skb = NULL; 1950 1951 skb_copy_from_linear_data_offset(skb, copied, 1952 (char *)hwdesc + offset, copy_len); 1953 1954 copied += copy_len; 1955 offset = 0; 1956 1957 producer = get_next_index(producer, tx_ring->num_desc); 1958 } 1959 1960 tx_ring->producer = producer; 1961 barrier(); 1962 } 1963 1964 static int 1965 netxen_map_tx_skb(struct pci_dev *pdev, 1966 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf) 1967 { 1968 struct netxen_skb_frag *nf; 1969 skb_frag_t *frag; 1970 int i, nr_frags; 1971 dma_addr_t map; 1972 1973 nr_frags = skb_shinfo(skb)->nr_frags; 1974 nf = &pbuf->frag_array[0]; 1975 1976 map = dma_map_single(&pdev->dev, skb->data, skb_headlen(skb), 1977 DMA_TO_DEVICE); 1978 if (dma_mapping_error(&pdev->dev, map)) 1979 goto out_err; 1980 1981 nf->dma = map; 1982 nf->length = skb_headlen(skb); 1983 1984 for (i = 0; i < nr_frags; i++) { 1985 frag = &skb_shinfo(skb)->frags[i]; 1986 nf = &pbuf->frag_array[i+1]; 1987 1988 map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag), 1989 DMA_TO_DEVICE); 1990 if (dma_mapping_error(&pdev->dev, map)) 1991 goto unwind; 1992 1993 nf->dma = map; 1994 nf->length = skb_frag_size(frag); 1995 } 1996 1997 return 0; 1998 1999 unwind: 2000 while (--i >= 0) { 2001 nf = &pbuf->frag_array[i+1]; 2002 dma_unmap_page(&pdev->dev, nf->dma, nf->length, DMA_TO_DEVICE); 2003 nf->dma = 0ULL; 2004 } 2005 2006 nf = &pbuf->frag_array[0]; 2007 dma_unmap_single(&pdev->dev, nf->dma, skb_headlen(skb), DMA_TO_DEVICE); 2008 nf->dma = 0ULL; 2009 2010 out_err: 2011 return -ENOMEM; 2012 } 2013 2014 static inline void 2015 netxen_clear_cmddesc(u64 *desc) 2016 { 2017 desc[0] = 0ULL; 2018 desc[2] = 0ULL; 2019 } 2020 2021 static netdev_tx_t 2022 netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) 2023 { 2024 struct netxen_adapter *adapter = netdev_priv(netdev); 2025 struct nx_host_tx_ring *tx_ring = adapter->tx_ring; 2026 struct netxen_cmd_buffer *pbuf; 2027 struct netxen_skb_frag *buffrag; 2028 struct cmd_desc_type0 *hwdesc, *first_desc; 2029 struct pci_dev *pdev; 2030 int i, k; 2031 int delta = 0; 2032 skb_frag_t *frag; 2033 2034 u32 producer; 2035 int frag_count; 2036 u32 num_txd = tx_ring->num_desc; 2037 2038 frag_count = skb_shinfo(skb)->nr_frags + 1; 2039 2040 /* 14 frags supported for normal packet and 2041 * 32 frags supported for TSO packet 2042 */ 2043 if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) { 2044 2045 for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) { 2046 frag = &skb_shinfo(skb)->frags[i]; 2047 delta += skb_frag_size(frag); 2048 } 2049 2050 if (!__pskb_pull_tail(skb, delta)) 2051 goto drop_packet; 2052 2053 frag_count = 1 + skb_shinfo(skb)->nr_frags; 2054 } 2055 2056 if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) { 2057 netif_stop_queue(netdev); 2058 smp_mb(); 2059 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH) 2060 netif_start_queue(netdev); 2061 else 2062 return NETDEV_TX_BUSY; 2063 } 2064 2065 producer = tx_ring->producer; 2066 pbuf = &tx_ring->cmd_buf_arr[producer]; 2067 2068 pdev = adapter->pdev; 2069 2070 if (netxen_map_tx_skb(pdev, skb, pbuf)) 2071 goto drop_packet; 2072 2073 pbuf->skb = skb; 2074 pbuf->frag_count = frag_count; 2075 2076 first_desc = hwdesc = &tx_ring->desc_head[producer]; 2077 netxen_clear_cmddesc((u64 *)hwdesc); 2078 2079 netxen_set_tx_frags_len(first_desc, frag_count, skb->len); 2080 netxen_set_tx_port(first_desc, adapter->portnum); 2081 2082 for (i = 0; i < frag_count; i++) { 2083 2084 k = i % 4; 2085 2086 if ((k == 0) && (i > 0)) { 2087 /* move to next desc.*/ 2088 producer = get_next_index(producer, num_txd); 2089 hwdesc = &tx_ring->desc_head[producer]; 2090 netxen_clear_cmddesc((u64 *)hwdesc); 2091 tx_ring->cmd_buf_arr[producer].skb = NULL; 2092 } 2093 2094 buffrag = &pbuf->frag_array[i]; 2095 2096 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length); 2097 switch (k) { 2098 case 0: 2099 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma); 2100 break; 2101 case 1: 2102 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma); 2103 break; 2104 case 2: 2105 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma); 2106 break; 2107 case 3: 2108 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma); 2109 break; 2110 } 2111 } 2112 2113 tx_ring->producer = get_next_index(producer, num_txd); 2114 2115 netxen_tso_check(netdev, tx_ring, first_desc, skb); 2116 2117 adapter->stats.txbytes += skb->len; 2118 adapter->stats.xmitcalled++; 2119 2120 netxen_nic_update_cmd_producer(adapter, tx_ring); 2121 2122 return NETDEV_TX_OK; 2123 2124 drop_packet: 2125 adapter->stats.txdropped++; 2126 dev_kfree_skb_any(skb); 2127 return NETDEV_TX_OK; 2128 } 2129 2130 static int netxen_nic_check_temp(struct netxen_adapter *adapter) 2131 { 2132 struct net_device *netdev = adapter->netdev; 2133 uint32_t temp, temp_state, temp_val; 2134 int rv = 0; 2135 2136 temp = NXRD32(adapter, CRB_TEMP_STATE); 2137 2138 temp_state = nx_get_temp_state(temp); 2139 temp_val = nx_get_temp_val(temp); 2140 2141 if (temp_state == NX_TEMP_PANIC) { 2142 printk(KERN_ALERT 2143 "%s: Device temperature %d degrees C exceeds" 2144 " maximum allowed. Hardware has been shut down.\n", 2145 netdev->name, temp_val); 2146 rv = 1; 2147 } else if (temp_state == NX_TEMP_WARN) { 2148 if (adapter->temp == NX_TEMP_NORMAL) { 2149 printk(KERN_ALERT 2150 "%s: Device temperature %d degrees C " 2151 "exceeds operating range." 2152 " Immediate action needed.\n", 2153 netdev->name, temp_val); 2154 } 2155 } else { 2156 if (adapter->temp == NX_TEMP_WARN) { 2157 printk(KERN_INFO 2158 "%s: Device temperature is now %d degrees C" 2159 " in normal range.\n", netdev->name, 2160 temp_val); 2161 } 2162 } 2163 adapter->temp = temp_state; 2164 return rv; 2165 } 2166 2167 void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup) 2168 { 2169 struct net_device *netdev = adapter->netdev; 2170 2171 if (adapter->ahw.linkup && !linkup) { 2172 printk(KERN_INFO "%s: %s NIC Link is down\n", 2173 netxen_nic_driver_name, netdev->name); 2174 adapter->ahw.linkup = 0; 2175 if (netif_running(netdev)) { 2176 netif_carrier_off(netdev); 2177 netif_stop_queue(netdev); 2178 } 2179 adapter->link_changed = !adapter->has_link_events; 2180 } else if (!adapter->ahw.linkup && linkup) { 2181 printk(KERN_INFO "%s: %s NIC Link is up\n", 2182 netxen_nic_driver_name, netdev->name); 2183 adapter->ahw.linkup = 1; 2184 if (netif_running(netdev)) { 2185 netif_carrier_on(netdev); 2186 netif_wake_queue(netdev); 2187 } 2188 adapter->link_changed = !adapter->has_link_events; 2189 } 2190 } 2191 2192 static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter) 2193 { 2194 u32 val, port, linkup; 2195 2196 port = adapter->physical_port; 2197 2198 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 2199 val = NXRD32(adapter, CRB_XG_STATE_P3); 2200 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val); 2201 linkup = (val == XG_LINK_UP_P3); 2202 } else { 2203 val = NXRD32(adapter, CRB_XG_STATE); 2204 val = (val >> port*8) & 0xff; 2205 linkup = (val == XG_LINK_UP); 2206 } 2207 2208 netxen_advert_link_change(adapter, linkup); 2209 } 2210 2211 static void netxen_tx_timeout(struct net_device *netdev, unsigned int txqueue) 2212 { 2213 struct netxen_adapter *adapter = netdev_priv(netdev); 2214 2215 if (test_bit(__NX_RESETTING, &adapter->state)) 2216 return; 2217 2218 dev_err(&netdev->dev, "transmit timeout, resetting.\n"); 2219 schedule_work(&adapter->tx_timeout_task); 2220 } 2221 2222 static void netxen_tx_timeout_task(struct work_struct *work) 2223 { 2224 struct netxen_adapter *adapter = 2225 container_of(work, struct netxen_adapter, tx_timeout_task); 2226 2227 if (!netif_running(adapter->netdev)) 2228 return; 2229 2230 if (test_and_set_bit(__NX_RESETTING, &adapter->state)) 2231 return; 2232 2233 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS) 2234 goto request_reset; 2235 2236 rtnl_lock(); 2237 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 2238 /* try to scrub interrupt */ 2239 netxen_napi_disable(adapter); 2240 2241 netxen_napi_enable(adapter); 2242 2243 netif_wake_queue(adapter->netdev); 2244 2245 clear_bit(__NX_RESETTING, &adapter->state); 2246 } else { 2247 clear_bit(__NX_RESETTING, &adapter->state); 2248 if (netxen_nic_reset_context(adapter)) { 2249 rtnl_unlock(); 2250 goto request_reset; 2251 } 2252 } 2253 netif_trans_update(adapter->netdev); 2254 rtnl_unlock(); 2255 return; 2256 2257 request_reset: 2258 adapter->need_fw_reset = 1; 2259 clear_bit(__NX_RESETTING, &adapter->state); 2260 } 2261 2262 static void netxen_nic_get_stats(struct net_device *netdev, 2263 struct rtnl_link_stats64 *stats) 2264 { 2265 struct netxen_adapter *adapter = netdev_priv(netdev); 2266 2267 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts; 2268 stats->tx_packets = adapter->stats.xmitfinished; 2269 stats->rx_bytes = adapter->stats.rxbytes; 2270 stats->tx_bytes = adapter->stats.txbytes; 2271 stats->rx_dropped = adapter->stats.rxdropped; 2272 stats->tx_dropped = adapter->stats.txdropped; 2273 } 2274 2275 static irqreturn_t netxen_intr(int irq, void *data) 2276 { 2277 struct nx_host_sds_ring *sds_ring = data; 2278 struct netxen_adapter *adapter = sds_ring->adapter; 2279 u32 status = 0; 2280 2281 status = readl(adapter->isr_int_vec); 2282 2283 if (!(status & adapter->int_vec_bit)) 2284 return IRQ_NONE; 2285 2286 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 2287 /* check interrupt state machine, to be sure */ 2288 status = readl(adapter->crb_int_state_reg); 2289 if (!ISR_LEGACY_INT_TRIGGERED(status)) 2290 return IRQ_NONE; 2291 2292 } else { 2293 unsigned long our_int = 0; 2294 2295 our_int = readl(adapter->crb_int_state_reg); 2296 2297 /* not our interrupt */ 2298 if (!test_and_clear_bit((7 + adapter->portnum), &our_int)) 2299 return IRQ_NONE; 2300 2301 /* claim interrupt */ 2302 writel((our_int & 0xffffffff), adapter->crb_int_state_reg); 2303 2304 /* clear interrupt */ 2305 netxen_nic_disable_int(sds_ring); 2306 } 2307 2308 writel(0xffffffff, adapter->tgt_status_reg); 2309 /* read twice to ensure write is flushed */ 2310 readl(adapter->isr_int_vec); 2311 readl(adapter->isr_int_vec); 2312 2313 napi_schedule(&sds_ring->napi); 2314 2315 return IRQ_HANDLED; 2316 } 2317 2318 static irqreturn_t netxen_msi_intr(int irq, void *data) 2319 { 2320 struct nx_host_sds_ring *sds_ring = data; 2321 struct netxen_adapter *adapter = sds_ring->adapter; 2322 2323 /* clear interrupt */ 2324 writel(0xffffffff, adapter->tgt_status_reg); 2325 2326 napi_schedule(&sds_ring->napi); 2327 return IRQ_HANDLED; 2328 } 2329 2330 static irqreturn_t netxen_msix_intr(int irq, void *data) 2331 { 2332 struct nx_host_sds_ring *sds_ring = data; 2333 2334 napi_schedule(&sds_ring->napi); 2335 return IRQ_HANDLED; 2336 } 2337 2338 static int netxen_nic_poll(struct napi_struct *napi, int budget) 2339 { 2340 struct nx_host_sds_ring *sds_ring = 2341 container_of(napi, struct nx_host_sds_ring, napi); 2342 2343 struct netxen_adapter *adapter = sds_ring->adapter; 2344 2345 int tx_complete; 2346 int work_done; 2347 2348 tx_complete = netxen_process_cmd_ring(adapter); 2349 2350 work_done = netxen_process_rcv_ring(sds_ring, budget); 2351 2352 if (!tx_complete) 2353 work_done = budget; 2354 2355 if (work_done < budget) { 2356 napi_complete_done(&sds_ring->napi, work_done); 2357 if (test_bit(__NX_DEV_UP, &adapter->state)) 2358 netxen_nic_enable_int(sds_ring); 2359 } 2360 2361 return work_done; 2362 } 2363 2364 static int 2365 nx_incr_dev_ref_cnt(struct netxen_adapter *adapter) 2366 { 2367 int count; 2368 if (netxen_api_lock(adapter)) 2369 return -EIO; 2370 2371 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2372 2373 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count); 2374 2375 netxen_api_unlock(adapter); 2376 return count; 2377 } 2378 2379 static int 2380 nx_decr_dev_ref_cnt(struct netxen_adapter *adapter) 2381 { 2382 int count, state; 2383 if (netxen_api_lock(adapter)) 2384 return -EIO; 2385 2386 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2387 WARN_ON(count == 0); 2388 2389 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count); 2390 state = NXRD32(adapter, NX_CRB_DEV_STATE); 2391 2392 if (count == 0 && state != NX_DEV_FAILED) 2393 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD); 2394 2395 netxen_api_unlock(adapter); 2396 return count; 2397 } 2398 2399 static int 2400 nx_dev_request_aer(struct netxen_adapter *adapter) 2401 { 2402 u32 state; 2403 int ret = -EINVAL; 2404 2405 if (netxen_api_lock(adapter)) 2406 return ret; 2407 2408 state = NXRD32(adapter, NX_CRB_DEV_STATE); 2409 2410 if (state == NX_DEV_NEED_AER) 2411 ret = 0; 2412 else if (state == NX_DEV_READY) { 2413 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER); 2414 ret = 0; 2415 } 2416 2417 netxen_api_unlock(adapter); 2418 return ret; 2419 } 2420 2421 int 2422 nx_dev_request_reset(struct netxen_adapter *adapter) 2423 { 2424 u32 state; 2425 int ret = -EINVAL; 2426 2427 if (netxen_api_lock(adapter)) 2428 return ret; 2429 2430 state = NXRD32(adapter, NX_CRB_DEV_STATE); 2431 2432 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) 2433 ret = 0; 2434 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) { 2435 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET); 2436 adapter->flags |= NETXEN_FW_RESET_OWNER; 2437 ret = 0; 2438 } 2439 2440 netxen_api_unlock(adapter); 2441 2442 return ret; 2443 } 2444 2445 static int 2446 netxen_can_start_firmware(struct netxen_adapter *adapter) 2447 { 2448 int count; 2449 int can_start = 0; 2450 2451 if (netxen_api_lock(adapter)) { 2452 nx_incr_dev_ref_cnt(adapter); 2453 return -1; 2454 } 2455 2456 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2457 2458 if ((count < 0) || (count >= NX_MAX_PCI_FUNC)) 2459 count = 0; 2460 2461 if (count == 0) { 2462 can_start = 1; 2463 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING); 2464 } 2465 2466 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count); 2467 2468 netxen_api_unlock(adapter); 2469 2470 return can_start; 2471 } 2472 2473 static void 2474 netxen_schedule_work(struct netxen_adapter *adapter, 2475 work_func_t func, int delay) 2476 { 2477 INIT_DELAYED_WORK(&adapter->fw_work, func); 2478 schedule_delayed_work(&adapter->fw_work, delay); 2479 } 2480 2481 static void 2482 netxen_cancel_fw_work(struct netxen_adapter *adapter) 2483 { 2484 while (test_and_set_bit(__NX_RESETTING, &adapter->state)) 2485 msleep(10); 2486 2487 cancel_delayed_work_sync(&adapter->fw_work); 2488 } 2489 2490 static void 2491 netxen_attach_work(struct work_struct *work) 2492 { 2493 struct netxen_adapter *adapter = container_of(work, 2494 struct netxen_adapter, fw_work.work); 2495 struct net_device *netdev = adapter->netdev; 2496 int err = 0; 2497 2498 if (netif_running(netdev)) { 2499 err = netxen_nic_attach(adapter); 2500 if (err) 2501 goto done; 2502 2503 err = netxen_nic_up(adapter, netdev); 2504 if (err) { 2505 netxen_nic_detach(adapter); 2506 goto done; 2507 } 2508 2509 netxen_restore_indev_addr(netdev, NETDEV_UP); 2510 } 2511 2512 netif_device_attach(netdev); 2513 2514 done: 2515 adapter->fw_fail_cnt = 0; 2516 clear_bit(__NX_RESETTING, &adapter->state); 2517 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 2518 } 2519 2520 static void 2521 netxen_fwinit_work(struct work_struct *work) 2522 { 2523 struct netxen_adapter *adapter = container_of(work, 2524 struct netxen_adapter, fw_work.work); 2525 int dev_state; 2526 int count; 2527 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE); 2528 if (adapter->flags & NETXEN_FW_RESET_OWNER) { 2529 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2530 WARN_ON(count == 0); 2531 if (count == 1) { 2532 if (adapter->mdump.md_enabled) { 2533 rtnl_lock(); 2534 netxen_dump_fw(adapter); 2535 rtnl_unlock(); 2536 } 2537 adapter->flags &= ~NETXEN_FW_RESET_OWNER; 2538 if (netxen_api_lock(adapter)) { 2539 clear_bit(__NX_RESETTING, &adapter->state); 2540 NXWR32(adapter, NX_CRB_DEV_STATE, 2541 NX_DEV_FAILED); 2542 return; 2543 } 2544 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2545 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count); 2546 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD); 2547 dev_state = NX_DEV_COLD; 2548 netxen_api_unlock(adapter); 2549 } 2550 } 2551 2552 switch (dev_state) { 2553 case NX_DEV_COLD: 2554 case NX_DEV_READY: 2555 if (!netxen_start_firmware(adapter)) { 2556 netxen_schedule_work(adapter, netxen_attach_work, 0); 2557 return; 2558 } 2559 break; 2560 2561 case NX_DEV_NEED_RESET: 2562 case NX_DEV_INITALIZING: 2563 netxen_schedule_work(adapter, 2564 netxen_fwinit_work, 2 * FW_POLL_DELAY); 2565 return; 2566 2567 case NX_DEV_FAILED: 2568 default: 2569 nx_incr_dev_ref_cnt(adapter); 2570 break; 2571 } 2572 2573 if (netxen_api_lock(adapter)) { 2574 clear_bit(__NX_RESETTING, &adapter->state); 2575 return; 2576 } 2577 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_FAILED); 2578 netxen_api_unlock(adapter); 2579 dev_err(&adapter->pdev->dev, "%s: Device initialization Failed\n", 2580 adapter->netdev->name); 2581 2582 clear_bit(__NX_RESETTING, &adapter->state); 2583 } 2584 2585 static void 2586 netxen_detach_work(struct work_struct *work) 2587 { 2588 struct netxen_adapter *adapter = container_of(work, 2589 struct netxen_adapter, fw_work.work); 2590 struct net_device *netdev = adapter->netdev; 2591 int ref_cnt = 0, delay; 2592 u32 status; 2593 2594 netif_device_detach(netdev); 2595 2596 netxen_nic_down(adapter, netdev); 2597 2598 rtnl_lock(); 2599 netxen_nic_detach(adapter); 2600 rtnl_unlock(); 2601 2602 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1); 2603 2604 if (status & NX_RCODE_FATAL_ERROR) 2605 goto err_ret; 2606 2607 if (adapter->temp == NX_TEMP_PANIC) 2608 goto err_ret; 2609 2610 if (!(adapter->flags & NETXEN_FW_RESET_OWNER)) 2611 ref_cnt = nx_decr_dev_ref_cnt(adapter); 2612 2613 if (ref_cnt == -EIO) 2614 goto err_ret; 2615 2616 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY); 2617 2618 adapter->fw_wait_cnt = 0; 2619 netxen_schedule_work(adapter, netxen_fwinit_work, delay); 2620 2621 return; 2622 2623 err_ret: 2624 clear_bit(__NX_RESETTING, &adapter->state); 2625 } 2626 2627 static int 2628 netxen_check_health(struct netxen_adapter *adapter) 2629 { 2630 u32 state, heartbit; 2631 u32 peg_status; 2632 struct net_device *netdev = adapter->netdev; 2633 2634 state = NXRD32(adapter, NX_CRB_DEV_STATE); 2635 if (state == NX_DEV_NEED_AER) 2636 return 0; 2637 2638 if (netxen_nic_check_temp(adapter)) 2639 goto detach; 2640 2641 if (adapter->need_fw_reset) { 2642 if (nx_dev_request_reset(adapter)) 2643 return 0; 2644 goto detach; 2645 } 2646 2647 /* NX_DEV_NEED_RESET, this state can be marked in two cases 2648 * 1. Tx timeout 2. Fw hang 2649 * Send request to destroy context in case of tx timeout only 2650 * and doesn't required in case of Fw hang 2651 */ 2652 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) { 2653 adapter->need_fw_reset = 1; 2654 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 2655 goto detach; 2656 } 2657 2658 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 2659 return 0; 2660 2661 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER); 2662 if (heartbit != adapter->heartbit) { 2663 adapter->heartbit = heartbit; 2664 adapter->fw_fail_cnt = 0; 2665 if (adapter->need_fw_reset) 2666 goto detach; 2667 return 0; 2668 } 2669 2670 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH) 2671 return 0; 2672 2673 if (nx_dev_request_reset(adapter)) 2674 return 0; 2675 2676 clear_bit(__NX_FW_ATTACHED, &adapter->state); 2677 2678 dev_err(&netdev->dev, "firmware hang detected\n"); 2679 peg_status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1); 2680 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n" 2681 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n" 2682 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n" 2683 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n" 2684 "PEG_NET_4_PC: 0x%x\n", 2685 peg_status, 2686 NXRD32(adapter, NETXEN_PEG_HALT_STATUS2), 2687 NXRD32(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c), 2688 NXRD32(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c), 2689 NXRD32(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c), 2690 NXRD32(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c), 2691 NXRD32(adapter, NETXEN_CRB_PEG_NET_4 + 0x3c)); 2692 if (NX_FWERROR_PEGSTAT1(peg_status) == 0x67) 2693 dev_err(&adapter->pdev->dev, 2694 "Firmware aborted with error code 0x00006700. " 2695 "Device is being reset.\n"); 2696 detach: 2697 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) && 2698 !test_and_set_bit(__NX_RESETTING, &adapter->state)) 2699 netxen_schedule_work(adapter, netxen_detach_work, 0); 2700 return 1; 2701 } 2702 2703 static void 2704 netxen_fw_poll_work(struct work_struct *work) 2705 { 2706 struct netxen_adapter *adapter = container_of(work, 2707 struct netxen_adapter, fw_work.work); 2708 2709 if (test_bit(__NX_RESETTING, &adapter->state)) 2710 goto reschedule; 2711 2712 if (test_bit(__NX_DEV_UP, &adapter->state) && 2713 !(adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)) { 2714 if (!adapter->has_link_events) { 2715 2716 netxen_nic_handle_phy_intr(adapter); 2717 2718 if (adapter->link_changed) 2719 netxen_nic_set_link_parameters(adapter); 2720 } 2721 } 2722 2723 if (netxen_check_health(adapter)) 2724 return; 2725 2726 reschedule: 2727 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 2728 } 2729 2730 static ssize_t 2731 netxen_store_bridged_mode(struct device *dev, 2732 struct device_attribute *attr, const char *buf, size_t len) 2733 { 2734 struct net_device *net = to_net_dev(dev); 2735 struct netxen_adapter *adapter = netdev_priv(net); 2736 unsigned long new; 2737 int ret = -EINVAL; 2738 2739 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG)) 2740 goto err_out; 2741 2742 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 2743 goto err_out; 2744 2745 if (kstrtoul(buf, 2, &new)) 2746 goto err_out; 2747 2748 if (!netxen_config_bridged_mode(adapter, !!new)) 2749 ret = len; 2750 2751 err_out: 2752 return ret; 2753 } 2754 2755 static ssize_t 2756 netxen_show_bridged_mode(struct device *dev, 2757 struct device_attribute *attr, char *buf) 2758 { 2759 struct net_device *net = to_net_dev(dev); 2760 struct netxen_adapter *adapter; 2761 int bridged_mode = 0; 2762 2763 adapter = netdev_priv(net); 2764 2765 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) 2766 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED); 2767 2768 return sprintf(buf, "%d\n", bridged_mode); 2769 } 2770 2771 static const struct device_attribute dev_attr_bridged_mode = { 2772 .attr = { .name = "bridged_mode", .mode = 0644 }, 2773 .show = netxen_show_bridged_mode, 2774 .store = netxen_store_bridged_mode, 2775 }; 2776 2777 static ssize_t 2778 netxen_store_diag_mode(struct device *dev, 2779 struct device_attribute *attr, const char *buf, size_t len) 2780 { 2781 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2782 unsigned long new; 2783 2784 if (kstrtoul(buf, 2, &new)) 2785 return -EINVAL; 2786 2787 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) 2788 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED; 2789 2790 return len; 2791 } 2792 2793 static ssize_t 2794 netxen_show_diag_mode(struct device *dev, 2795 struct device_attribute *attr, char *buf) 2796 { 2797 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2798 2799 return sprintf(buf, "%d\n", 2800 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)); 2801 } 2802 2803 static const struct device_attribute dev_attr_diag_mode = { 2804 .attr = { .name = "diag_mode", .mode = 0644 }, 2805 .show = netxen_show_diag_mode, 2806 .store = netxen_store_diag_mode, 2807 }; 2808 2809 static int 2810 netxen_sysfs_validate_crb(struct netxen_adapter *adapter, 2811 loff_t offset, size_t size) 2812 { 2813 size_t crb_size = 4; 2814 2815 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) 2816 return -EIO; 2817 2818 if (offset < NETXEN_PCI_CRBSPACE) { 2819 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 2820 return -EINVAL; 2821 2822 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, 2823 NETXEN_PCI_CAMQM_2M_END)) 2824 crb_size = 8; 2825 else 2826 return -EINVAL; 2827 } 2828 2829 if ((size != crb_size) || (offset & (crb_size-1))) 2830 return -EINVAL; 2831 2832 return 0; 2833 } 2834 2835 static ssize_t 2836 netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj, 2837 struct bin_attribute *attr, 2838 char *buf, loff_t offset, size_t size) 2839 { 2840 struct device *dev = kobj_to_dev(kobj); 2841 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2842 u32 data; 2843 u64 qmdata; 2844 int ret; 2845 2846 ret = netxen_sysfs_validate_crb(adapter, offset, size); 2847 if (ret != 0) 2848 return ret; 2849 2850 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && 2851 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, 2852 NETXEN_PCI_CAMQM_2M_END)) { 2853 netxen_pci_camqm_read_2M(adapter, offset, &qmdata); 2854 memcpy(buf, &qmdata, size); 2855 } else { 2856 data = NXRD32(adapter, offset); 2857 memcpy(buf, &data, size); 2858 } 2859 2860 return size; 2861 } 2862 2863 static ssize_t 2864 netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj, 2865 struct bin_attribute *attr, 2866 char *buf, loff_t offset, size_t size) 2867 { 2868 struct device *dev = kobj_to_dev(kobj); 2869 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2870 u32 data; 2871 u64 qmdata; 2872 int ret; 2873 2874 ret = netxen_sysfs_validate_crb(adapter, offset, size); 2875 if (ret != 0) 2876 return ret; 2877 2878 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && 2879 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, 2880 NETXEN_PCI_CAMQM_2M_END)) { 2881 memcpy(&qmdata, buf, size); 2882 netxen_pci_camqm_write_2M(adapter, offset, qmdata); 2883 } else { 2884 memcpy(&data, buf, size); 2885 NXWR32(adapter, offset, data); 2886 } 2887 2888 return size; 2889 } 2890 2891 static int 2892 netxen_sysfs_validate_mem(struct netxen_adapter *adapter, 2893 loff_t offset, size_t size) 2894 { 2895 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) 2896 return -EIO; 2897 2898 if ((size != 8) || (offset & 0x7)) 2899 return -EIO; 2900 2901 return 0; 2902 } 2903 2904 static ssize_t 2905 netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj, 2906 struct bin_attribute *attr, 2907 char *buf, loff_t offset, size_t size) 2908 { 2909 struct device *dev = kobj_to_dev(kobj); 2910 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2911 u64 data; 2912 int ret; 2913 2914 ret = netxen_sysfs_validate_mem(adapter, offset, size); 2915 if (ret != 0) 2916 return ret; 2917 2918 if (adapter->pci_mem_read(adapter, offset, &data)) 2919 return -EIO; 2920 2921 memcpy(buf, &data, size); 2922 2923 return size; 2924 } 2925 2926 static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj, 2927 struct bin_attribute *attr, char *buf, 2928 loff_t offset, size_t size) 2929 { 2930 struct device *dev = kobj_to_dev(kobj); 2931 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2932 u64 data; 2933 int ret; 2934 2935 ret = netxen_sysfs_validate_mem(adapter, offset, size); 2936 if (ret != 0) 2937 return ret; 2938 2939 memcpy(&data, buf, size); 2940 2941 if (adapter->pci_mem_write(adapter, offset, data)) 2942 return -EIO; 2943 2944 return size; 2945 } 2946 2947 2948 static const struct bin_attribute bin_attr_crb = { 2949 .attr = { .name = "crb", .mode = 0644 }, 2950 .size = 0, 2951 .read = netxen_sysfs_read_crb, 2952 .write = netxen_sysfs_write_crb, 2953 }; 2954 2955 static const struct bin_attribute bin_attr_mem = { 2956 .attr = { .name = "mem", .mode = 0644 }, 2957 .size = 0, 2958 .read = netxen_sysfs_read_mem, 2959 .write = netxen_sysfs_write_mem, 2960 }; 2961 2962 static ssize_t 2963 netxen_sysfs_read_dimm(struct file *filp, struct kobject *kobj, 2964 struct bin_attribute *attr, 2965 char *buf, loff_t offset, size_t size) 2966 { 2967 struct device *dev = kobj_to_dev(kobj); 2968 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2969 struct net_device *netdev = adapter->netdev; 2970 struct netxen_dimm_cfg dimm; 2971 u8 dw, rows, cols, banks, ranks; 2972 u32 val; 2973 2974 if (size < attr->size) { 2975 netdev_err(netdev, "Invalid size\n"); 2976 return -EINVAL; 2977 } 2978 2979 memset(&dimm, 0, sizeof(struct netxen_dimm_cfg)); 2980 val = NXRD32(adapter, NETXEN_DIMM_CAPABILITY); 2981 2982 /* Checks if DIMM info is valid. */ 2983 if (val & NETXEN_DIMM_VALID_FLAG) { 2984 netdev_err(netdev, "Invalid DIMM flag\n"); 2985 dimm.presence = 0xff; 2986 goto out; 2987 } 2988 2989 rows = NETXEN_DIMM_NUMROWS(val); 2990 cols = NETXEN_DIMM_NUMCOLS(val); 2991 ranks = NETXEN_DIMM_NUMRANKS(val); 2992 banks = NETXEN_DIMM_NUMBANKS(val); 2993 dw = NETXEN_DIMM_DATAWIDTH(val); 2994 2995 dimm.presence = (val & NETXEN_DIMM_PRESENT); 2996 2997 /* Checks if DIMM info is present. */ 2998 if (!dimm.presence) { 2999 netdev_err(netdev, "DIMM not present\n"); 3000 goto out; 3001 } 3002 3003 dimm.dimm_type = NETXEN_DIMM_TYPE(val); 3004 3005 switch (dimm.dimm_type) { 3006 case NETXEN_DIMM_TYPE_RDIMM: 3007 case NETXEN_DIMM_TYPE_UDIMM: 3008 case NETXEN_DIMM_TYPE_SO_DIMM: 3009 case NETXEN_DIMM_TYPE_Micro_DIMM: 3010 case NETXEN_DIMM_TYPE_Mini_RDIMM: 3011 case NETXEN_DIMM_TYPE_Mini_UDIMM: 3012 break; 3013 default: 3014 netdev_err(netdev, "Invalid DIMM type %x\n", dimm.dimm_type); 3015 goto out; 3016 } 3017 3018 if (val & NETXEN_DIMM_MEMTYPE_DDR2_SDRAM) 3019 dimm.mem_type = NETXEN_DIMM_MEM_DDR2_SDRAM; 3020 else 3021 dimm.mem_type = NETXEN_DIMM_MEMTYPE(val); 3022 3023 if (val & NETXEN_DIMM_SIZE) { 3024 dimm.size = NETXEN_DIMM_STD_MEM_SIZE; 3025 goto out; 3026 } 3027 3028 if (!rows) { 3029 netdev_err(netdev, "Invalid no of rows %x\n", rows); 3030 goto out; 3031 } 3032 3033 if (!cols) { 3034 netdev_err(netdev, "Invalid no of columns %x\n", cols); 3035 goto out; 3036 } 3037 3038 if (!banks) { 3039 netdev_err(netdev, "Invalid no of banks %x\n", banks); 3040 goto out; 3041 } 3042 3043 ranks += 1; 3044 3045 switch (dw) { 3046 case 0x0: 3047 dw = 32; 3048 break; 3049 case 0x1: 3050 dw = 33; 3051 break; 3052 case 0x2: 3053 dw = 36; 3054 break; 3055 case 0x3: 3056 dw = 64; 3057 break; 3058 case 0x4: 3059 dw = 72; 3060 break; 3061 case 0x5: 3062 dw = 80; 3063 break; 3064 case 0x6: 3065 dw = 128; 3066 break; 3067 case 0x7: 3068 dw = 144; 3069 break; 3070 default: 3071 netdev_err(netdev, "Invalid data-width %x\n", dw); 3072 goto out; 3073 } 3074 3075 dimm.size = ((1 << rows) * (1 << cols) * dw * banks * ranks) / 8; 3076 /* Size returned in MB. */ 3077 dimm.size = (dimm.size) / 0x100000; 3078 out: 3079 memcpy(buf, &dimm, sizeof(struct netxen_dimm_cfg)); 3080 return sizeof(struct netxen_dimm_cfg); 3081 3082 } 3083 3084 static const struct bin_attribute bin_attr_dimm = { 3085 .attr = { .name = "dimm", .mode = 0644 }, 3086 .size = sizeof(struct netxen_dimm_cfg), 3087 .read = netxen_sysfs_read_dimm, 3088 }; 3089 3090 3091 static void 3092 netxen_create_sysfs_entries(struct netxen_adapter *adapter) 3093 { 3094 struct device *dev = &adapter->pdev->dev; 3095 3096 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) { 3097 /* bridged_mode control */ 3098 if (device_create_file(dev, &dev_attr_bridged_mode)) { 3099 dev_warn(dev, 3100 "failed to create bridged_mode sysfs entry\n"); 3101 } 3102 } 3103 } 3104 3105 static void 3106 netxen_remove_sysfs_entries(struct netxen_adapter *adapter) 3107 { 3108 struct device *dev = &adapter->pdev->dev; 3109 3110 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) 3111 device_remove_file(dev, &dev_attr_bridged_mode); 3112 } 3113 3114 static void 3115 netxen_create_diag_entries(struct netxen_adapter *adapter) 3116 { 3117 struct pci_dev *pdev = adapter->pdev; 3118 struct device *dev; 3119 3120 dev = &pdev->dev; 3121 if (device_create_file(dev, &dev_attr_diag_mode)) 3122 dev_info(dev, "failed to create diag_mode sysfs entry\n"); 3123 if (device_create_bin_file(dev, &bin_attr_crb)) 3124 dev_info(dev, "failed to create crb sysfs entry\n"); 3125 if (device_create_bin_file(dev, &bin_attr_mem)) 3126 dev_info(dev, "failed to create mem sysfs entry\n"); 3127 if (device_create_bin_file(dev, &bin_attr_dimm)) 3128 dev_info(dev, "failed to create dimm sysfs entry\n"); 3129 } 3130 3131 3132 static void 3133 netxen_remove_diag_entries(struct netxen_adapter *adapter) 3134 { 3135 struct pci_dev *pdev = adapter->pdev; 3136 struct device *dev = &pdev->dev; 3137 3138 device_remove_file(dev, &dev_attr_diag_mode); 3139 device_remove_bin_file(dev, &bin_attr_crb); 3140 device_remove_bin_file(dev, &bin_attr_mem); 3141 device_remove_bin_file(dev, &bin_attr_dimm); 3142 } 3143 3144 #ifdef CONFIG_INET 3145 3146 #define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops) 3147 3148 static int 3149 netxen_destip_supported(struct netxen_adapter *adapter) 3150 { 3151 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 3152 return 0; 3153 3154 if (adapter->ahw.cut_through) 3155 return 0; 3156 3157 return 1; 3158 } 3159 3160 static void 3161 netxen_free_ip_list(struct netxen_adapter *adapter, bool master) 3162 { 3163 struct nx_ip_list *cur, *tmp_cur; 3164 3165 list_for_each_entry_safe(cur, tmp_cur, &adapter->ip_list, list) { 3166 if (master) { 3167 if (cur->master) { 3168 netxen_config_ipaddr(adapter, cur->ip_addr, 3169 NX_IP_DOWN); 3170 list_del(&cur->list); 3171 kfree(cur); 3172 } 3173 } else { 3174 netxen_config_ipaddr(adapter, cur->ip_addr, NX_IP_DOWN); 3175 list_del(&cur->list); 3176 kfree(cur); 3177 } 3178 } 3179 } 3180 3181 static bool 3182 netxen_list_config_ip(struct netxen_adapter *adapter, 3183 struct in_ifaddr *ifa, unsigned long event) 3184 { 3185 struct net_device *dev; 3186 struct nx_ip_list *cur, *tmp_cur; 3187 struct list_head *head; 3188 bool ret = false; 3189 3190 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL; 3191 3192 if (dev == NULL) 3193 goto out; 3194 3195 switch (event) { 3196 case NX_IP_UP: 3197 list_for_each(head, &adapter->ip_list) { 3198 cur = list_entry(head, struct nx_ip_list, list); 3199 3200 if (cur->ip_addr == ifa->ifa_address) 3201 goto out; 3202 } 3203 3204 cur = kzalloc(sizeof(struct nx_ip_list), GFP_ATOMIC); 3205 if (cur == NULL) 3206 goto out; 3207 if (is_vlan_dev(dev)) 3208 dev = vlan_dev_real_dev(dev); 3209 cur->master = !!netif_is_bond_master(dev); 3210 cur->ip_addr = ifa->ifa_address; 3211 list_add_tail(&cur->list, &adapter->ip_list); 3212 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP); 3213 ret = true; 3214 break; 3215 case NX_IP_DOWN: 3216 list_for_each_entry_safe(cur, tmp_cur, 3217 &adapter->ip_list, list) { 3218 if (cur->ip_addr == ifa->ifa_address) { 3219 list_del(&cur->list); 3220 kfree(cur); 3221 netxen_config_ipaddr(adapter, ifa->ifa_address, 3222 NX_IP_DOWN); 3223 ret = true; 3224 break; 3225 } 3226 } 3227 } 3228 out: 3229 return ret; 3230 } 3231 3232 static void 3233 netxen_config_indev_addr(struct netxen_adapter *adapter, 3234 struct net_device *dev, unsigned long event) 3235 { 3236 struct in_device *indev; 3237 struct in_ifaddr *ifa; 3238 3239 if (!netxen_destip_supported(adapter)) 3240 return; 3241 3242 indev = in_dev_get(dev); 3243 if (!indev) 3244 return; 3245 3246 rcu_read_lock(); 3247 in_dev_for_each_ifa_rcu(ifa, indev) { 3248 switch (event) { 3249 case NETDEV_UP: 3250 netxen_list_config_ip(adapter, ifa, NX_IP_UP); 3251 break; 3252 case NETDEV_DOWN: 3253 netxen_list_config_ip(adapter, ifa, NX_IP_DOWN); 3254 break; 3255 default: 3256 break; 3257 } 3258 } 3259 rcu_read_unlock(); 3260 in_dev_put(indev); 3261 } 3262 3263 static void 3264 netxen_restore_indev_addr(struct net_device *netdev, unsigned long event) 3265 3266 { 3267 struct netxen_adapter *adapter = netdev_priv(netdev); 3268 struct nx_ip_list *pos, *tmp_pos; 3269 unsigned long ip_event; 3270 3271 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN; 3272 netxen_config_indev_addr(adapter, netdev, event); 3273 3274 list_for_each_entry_safe(pos, tmp_pos, &adapter->ip_list, list) { 3275 netxen_config_ipaddr(adapter, pos->ip_addr, ip_event); 3276 } 3277 } 3278 3279 static inline bool 3280 netxen_config_checkdev(struct net_device *dev) 3281 { 3282 struct netxen_adapter *adapter; 3283 3284 if (!is_netxen_netdev(dev)) 3285 return false; 3286 adapter = netdev_priv(dev); 3287 if (!adapter) 3288 return false; 3289 if (!netxen_destip_supported(adapter)) 3290 return false; 3291 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 3292 return false; 3293 3294 return true; 3295 } 3296 3297 /** 3298 * netxen_config_master - configure addresses based on master 3299 * @dev: netxen device 3300 * @event: netdev event 3301 */ 3302 static void netxen_config_master(struct net_device *dev, unsigned long event) 3303 { 3304 struct net_device *master, *slave; 3305 struct netxen_adapter *adapter = netdev_priv(dev); 3306 3307 rcu_read_lock(); 3308 master = netdev_master_upper_dev_get_rcu(dev); 3309 /* 3310 * This is the case where the netxen nic is being 3311 * enslaved and is dev_open()ed in bond_enslave() 3312 * Now we should program the bond's (and its vlans') 3313 * addresses in the netxen NIC. 3314 */ 3315 if (master && netif_is_bond_master(master) && 3316 !netif_is_bond_slave(dev)) { 3317 netxen_config_indev_addr(adapter, master, event); 3318 for_each_netdev_rcu(&init_net, slave) 3319 if (is_vlan_dev(slave) && 3320 vlan_dev_real_dev(slave) == master) 3321 netxen_config_indev_addr(adapter, slave, event); 3322 } 3323 rcu_read_unlock(); 3324 /* 3325 * This is the case where the netxen nic is being 3326 * released and is dev_close()ed in bond_release() 3327 * just before IFF_BONDING is stripped. 3328 */ 3329 if (!master && dev->priv_flags & IFF_BONDING) 3330 netxen_free_ip_list(adapter, true); 3331 } 3332 3333 static int netxen_netdev_event(struct notifier_block *this, 3334 unsigned long event, void *ptr) 3335 { 3336 struct netxen_adapter *adapter; 3337 struct net_device *dev = netdev_notifier_info_to_dev(ptr); 3338 struct net_device *orig_dev = dev; 3339 struct net_device *slave; 3340 3341 recheck: 3342 if (dev == NULL) 3343 goto done; 3344 3345 if (is_vlan_dev(dev)) { 3346 dev = vlan_dev_real_dev(dev); 3347 goto recheck; 3348 } 3349 if (event == NETDEV_UP || event == NETDEV_DOWN) { 3350 /* If this is a bonding device, look for netxen-based slaves*/ 3351 if (netif_is_bond_master(dev)) { 3352 rcu_read_lock(); 3353 for_each_netdev_in_bond_rcu(dev, slave) { 3354 if (!netxen_config_checkdev(slave)) 3355 continue; 3356 adapter = netdev_priv(slave); 3357 netxen_config_indev_addr(adapter, 3358 orig_dev, event); 3359 } 3360 rcu_read_unlock(); 3361 } else { 3362 if (!netxen_config_checkdev(dev)) 3363 goto done; 3364 adapter = netdev_priv(dev); 3365 /* Act only if the actual netxen is the target */ 3366 if (orig_dev == dev) 3367 netxen_config_master(dev, event); 3368 netxen_config_indev_addr(adapter, orig_dev, event); 3369 } 3370 } 3371 done: 3372 return NOTIFY_DONE; 3373 } 3374 3375 static int 3376 netxen_inetaddr_event(struct notifier_block *this, 3377 unsigned long event, void *ptr) 3378 { 3379 struct netxen_adapter *adapter; 3380 struct net_device *dev, *slave; 3381 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr; 3382 unsigned long ip_event; 3383 3384 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL; 3385 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN; 3386 recheck: 3387 if (dev == NULL) 3388 goto done; 3389 3390 if (is_vlan_dev(dev)) { 3391 dev = vlan_dev_real_dev(dev); 3392 goto recheck; 3393 } 3394 if (event == NETDEV_UP || event == NETDEV_DOWN) { 3395 /* If this is a bonding device, look for netxen-based slaves*/ 3396 if (netif_is_bond_master(dev)) { 3397 rcu_read_lock(); 3398 for_each_netdev_in_bond_rcu(dev, slave) { 3399 if (!netxen_config_checkdev(slave)) 3400 continue; 3401 adapter = netdev_priv(slave); 3402 netxen_list_config_ip(adapter, ifa, ip_event); 3403 } 3404 rcu_read_unlock(); 3405 } else { 3406 if (!netxen_config_checkdev(dev)) 3407 goto done; 3408 adapter = netdev_priv(dev); 3409 netxen_list_config_ip(adapter, ifa, ip_event); 3410 } 3411 } 3412 done: 3413 return NOTIFY_DONE; 3414 } 3415 3416 static struct notifier_block netxen_netdev_cb = { 3417 .notifier_call = netxen_netdev_event, 3418 }; 3419 3420 static struct notifier_block netxen_inetaddr_cb = { 3421 .notifier_call = netxen_inetaddr_event, 3422 }; 3423 #else 3424 static void 3425 netxen_restore_indev_addr(struct net_device *dev, unsigned long event) 3426 { } 3427 static void 3428 netxen_free_ip_list(struct netxen_adapter *adapter, bool master) 3429 { } 3430 #endif 3431 3432 static const struct pci_error_handlers netxen_err_handler = { 3433 .error_detected = netxen_io_error_detected, 3434 .slot_reset = netxen_io_slot_reset, 3435 }; 3436 3437 static SIMPLE_DEV_PM_OPS(netxen_nic_pm_ops, 3438 netxen_nic_suspend, 3439 netxen_nic_resume); 3440 3441 static struct pci_driver netxen_driver = { 3442 .name = netxen_nic_driver_name, 3443 .id_table = netxen_pci_tbl, 3444 .probe = netxen_nic_probe, 3445 .remove = netxen_nic_remove, 3446 .driver.pm = &netxen_nic_pm_ops, 3447 .shutdown = netxen_nic_shutdown, 3448 .err_handler = &netxen_err_handler 3449 }; 3450 3451 static int __init netxen_init_module(void) 3452 { 3453 printk(KERN_INFO "%s\n", netxen_nic_driver_string); 3454 3455 #ifdef CONFIG_INET 3456 register_netdevice_notifier(&netxen_netdev_cb); 3457 register_inetaddr_notifier(&netxen_inetaddr_cb); 3458 #endif 3459 return pci_register_driver(&netxen_driver); 3460 } 3461 3462 module_init(netxen_init_module); 3463 3464 static void __exit netxen_exit_module(void) 3465 { 3466 pci_unregister_driver(&netxen_driver); 3467 3468 #ifdef CONFIG_INET 3469 unregister_inetaddr_notifier(&netxen_inetaddr_cb); 3470 unregister_netdevice_notifier(&netxen_netdev_cb); 3471 #endif 3472 } 3473 3474 module_exit(netxen_exit_module); 3475