1 /* 2 * Copyright (C) 2003 - 2009 NetXen, Inc. 3 * Copyright (C) 2009 - QLogic Corporation. 4 * All rights reserved. 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License 8 * as published by the Free Software Foundation; either version 2 9 * of the License, or (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, but 12 * WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, 19 * MA 02111-1307, USA. 20 * 21 * The full GNU General Public License is included in this distribution 22 * in the file called "COPYING". 23 * 24 */ 25 26 #include <linux/slab.h> 27 #include <linux/vmalloc.h> 28 #include <linux/interrupt.h> 29 #include "netxen_nic_hw.h" 30 31 #include "netxen_nic.h" 32 33 #include <linux/dma-mapping.h> 34 #include <linux/if_vlan.h> 35 #include <net/ip.h> 36 #include <linux/ipv6.h> 37 #include <linux/inetdevice.h> 38 #include <linux/sysfs.h> 39 #include <linux/aer.h> 40 41 MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Intelligent Ethernet Driver"); 42 MODULE_LICENSE("GPL"); 43 MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID); 44 MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME); 45 46 char netxen_nic_driver_name[] = "netxen_nic"; 47 static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v" 48 NETXEN_NIC_LINUX_VERSIONID; 49 50 static int port_mode = NETXEN_PORT_MODE_AUTO_NEG; 51 52 /* Default to restricted 1G auto-neg mode */ 53 static int wol_port_mode = 5; 54 55 static int use_msi = 1; 56 57 static int use_msi_x = 1; 58 59 static int auto_fw_reset = AUTO_FW_RESET_ENABLED; 60 module_param(auto_fw_reset, int, 0644); 61 MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled"); 62 63 static int __devinit netxen_nic_probe(struct pci_dev *pdev, 64 const struct pci_device_id *ent); 65 static void __devexit netxen_nic_remove(struct pci_dev *pdev); 66 static int netxen_nic_open(struct net_device *netdev); 67 static int netxen_nic_close(struct net_device *netdev); 68 static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *, 69 struct net_device *); 70 static void netxen_tx_timeout(struct net_device *netdev); 71 static void netxen_tx_timeout_task(struct work_struct *work); 72 static void netxen_fw_poll_work(struct work_struct *work); 73 static void netxen_schedule_work(struct netxen_adapter *adapter, 74 work_func_t func, int delay); 75 static void netxen_cancel_fw_work(struct netxen_adapter *adapter); 76 static int netxen_nic_poll(struct napi_struct *napi, int budget); 77 #ifdef CONFIG_NET_POLL_CONTROLLER 78 static void netxen_nic_poll_controller(struct net_device *netdev); 79 #endif 80 81 static void netxen_create_sysfs_entries(struct netxen_adapter *adapter); 82 static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter); 83 static void netxen_create_diag_entries(struct netxen_adapter *adapter); 84 static void netxen_remove_diag_entries(struct netxen_adapter *adapter); 85 static int nx_dev_request_aer(struct netxen_adapter *adapter); 86 static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter); 87 static int netxen_can_start_firmware(struct netxen_adapter *adapter); 88 89 static irqreturn_t netxen_intr(int irq, void *data); 90 static irqreturn_t netxen_msi_intr(int irq, void *data); 91 static irqreturn_t netxen_msix_intr(int irq, void *data); 92 93 static void netxen_free_vlan_ip_list(struct netxen_adapter *); 94 static void netxen_restore_indev_addr(struct net_device *dev, unsigned long); 95 static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *dev, 96 struct rtnl_link_stats64 *stats); 97 static int netxen_nic_set_mac(struct net_device *netdev, void *p); 98 99 /* PCI Device ID Table */ 100 #define ENTRY(device) \ 101 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \ 102 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0} 103 104 static DEFINE_PCI_DEVICE_TABLE(netxen_pci_tbl) = { 105 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR), 106 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4), 107 ENTRY(PCI_DEVICE_ID_NX2031_4GCU), 108 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ), 109 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ), 110 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT), 111 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2), 112 ENTRY(PCI_DEVICE_ID_NX3031), 113 {0,} 114 }; 115 116 MODULE_DEVICE_TABLE(pci, netxen_pci_tbl); 117 118 static uint32_t crb_cmd_producer[4] = { 119 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1, 120 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3 121 }; 122 123 void 124 netxen_nic_update_cmd_producer(struct netxen_adapter *adapter, 125 struct nx_host_tx_ring *tx_ring) 126 { 127 NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer); 128 } 129 130 static uint32_t crb_cmd_consumer[4] = { 131 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1, 132 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3 133 }; 134 135 static inline void 136 netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter, 137 struct nx_host_tx_ring *tx_ring) 138 { 139 NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer); 140 } 141 142 static uint32_t msi_tgt_status[8] = { 143 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1, 144 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3, 145 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5, 146 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7 147 }; 148 149 static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG; 150 151 static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring) 152 { 153 struct netxen_adapter *adapter = sds_ring->adapter; 154 155 NXWRIO(adapter, sds_ring->crb_intr_mask, 0); 156 } 157 158 static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring) 159 { 160 struct netxen_adapter *adapter = sds_ring->adapter; 161 162 NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1); 163 164 if (!NETXEN_IS_MSI_FAMILY(adapter)) 165 NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff); 166 } 167 168 static int 169 netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count) 170 { 171 int size = sizeof(struct nx_host_sds_ring) * count; 172 173 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL); 174 175 return recv_ctx->sds_rings == NULL; 176 } 177 178 static void 179 netxen_free_sds_rings(struct netxen_recv_context *recv_ctx) 180 { 181 if (recv_ctx->sds_rings != NULL) 182 kfree(recv_ctx->sds_rings); 183 184 recv_ctx->sds_rings = NULL; 185 } 186 187 static int 188 netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev) 189 { 190 int ring; 191 struct nx_host_sds_ring *sds_ring; 192 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 193 194 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings)) 195 return -ENOMEM; 196 197 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 198 sds_ring = &recv_ctx->sds_rings[ring]; 199 netif_napi_add(netdev, &sds_ring->napi, 200 netxen_nic_poll, NETXEN_NETDEV_WEIGHT); 201 } 202 203 return 0; 204 } 205 206 static void 207 netxen_napi_del(struct netxen_adapter *adapter) 208 { 209 int ring; 210 struct nx_host_sds_ring *sds_ring; 211 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 212 213 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 214 sds_ring = &recv_ctx->sds_rings[ring]; 215 netif_napi_del(&sds_ring->napi); 216 } 217 218 netxen_free_sds_rings(&adapter->recv_ctx); 219 } 220 221 static void 222 netxen_napi_enable(struct netxen_adapter *adapter) 223 { 224 int ring; 225 struct nx_host_sds_ring *sds_ring; 226 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 227 228 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 229 sds_ring = &recv_ctx->sds_rings[ring]; 230 napi_enable(&sds_ring->napi); 231 netxen_nic_enable_int(sds_ring); 232 } 233 } 234 235 static void 236 netxen_napi_disable(struct netxen_adapter *adapter) 237 { 238 int ring; 239 struct nx_host_sds_ring *sds_ring; 240 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 241 242 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 243 sds_ring = &recv_ctx->sds_rings[ring]; 244 netxen_nic_disable_int(sds_ring); 245 napi_synchronize(&sds_ring->napi); 246 napi_disable(&sds_ring->napi); 247 } 248 } 249 250 static int nx_set_dma_mask(struct netxen_adapter *adapter) 251 { 252 struct pci_dev *pdev = adapter->pdev; 253 uint64_t mask, cmask; 254 255 adapter->pci_using_dac = 0; 256 257 mask = DMA_BIT_MASK(32); 258 cmask = DMA_BIT_MASK(32); 259 260 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 261 #ifndef CONFIG_IA64 262 mask = DMA_BIT_MASK(35); 263 #endif 264 } else { 265 mask = DMA_BIT_MASK(39); 266 cmask = mask; 267 } 268 269 if (pci_set_dma_mask(pdev, mask) == 0 && 270 pci_set_consistent_dma_mask(pdev, cmask) == 0) { 271 adapter->pci_using_dac = 1; 272 return 0; 273 } 274 275 return -EIO; 276 } 277 278 /* Update addressable range if firmware supports it */ 279 static int 280 nx_update_dma_mask(struct netxen_adapter *adapter) 281 { 282 int change, shift, err; 283 uint64_t mask, old_mask, old_cmask; 284 struct pci_dev *pdev = adapter->pdev; 285 286 change = 0; 287 288 shift = NXRD32(adapter, CRB_DMA_SHIFT); 289 if (shift > 32) 290 return 0; 291 292 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9)) 293 change = 1; 294 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4)) 295 change = 1; 296 297 if (change) { 298 old_mask = pdev->dma_mask; 299 old_cmask = pdev->dev.coherent_dma_mask; 300 301 mask = DMA_BIT_MASK(32+shift); 302 303 err = pci_set_dma_mask(pdev, mask); 304 if (err) 305 goto err_out; 306 307 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 308 309 err = pci_set_consistent_dma_mask(pdev, mask); 310 if (err) 311 goto err_out; 312 } 313 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift); 314 } 315 316 return 0; 317 318 err_out: 319 pci_set_dma_mask(pdev, old_mask); 320 pci_set_consistent_dma_mask(pdev, old_cmask); 321 return err; 322 } 323 324 static int 325 netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot) 326 { 327 u32 val, timeout; 328 329 if (first_boot == 0x55555555) { 330 /* This is the first boot after power up */ 331 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC); 332 333 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id)) 334 return 0; 335 336 /* PCI bus master workaround */ 337 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4)); 338 if (!(first_boot & 0x4)) { 339 first_boot |= 0x4; 340 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot); 341 NXRD32(adapter, NETXEN_PCIE_REG(0x4)); 342 } 343 344 /* This is the first boot after power up */ 345 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET); 346 if (first_boot != 0x80000f) { 347 /* clear the register for future unloads/loads */ 348 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0); 349 return -EIO; 350 } 351 352 /* Start P2 boot loader */ 353 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE); 354 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1); 355 timeout = 0; 356 do { 357 msleep(1); 358 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc)); 359 360 if (++timeout > 5000) 361 return -EIO; 362 363 } while (val == NETXEN_BDINFO_MAGIC); 364 } 365 return 0; 366 } 367 368 static void netxen_set_port_mode(struct netxen_adapter *adapter) 369 { 370 u32 val, data; 371 372 val = adapter->ahw.board_type; 373 if ((val == NETXEN_BRDTYPE_P3_HMEZ) || 374 (val == NETXEN_BRDTYPE_P3_XG_LOM)) { 375 if (port_mode == NETXEN_PORT_MODE_802_3_AP) { 376 data = NETXEN_PORT_MODE_802_3_AP; 377 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); 378 } else if (port_mode == NETXEN_PORT_MODE_XG) { 379 data = NETXEN_PORT_MODE_XG; 380 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); 381 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) { 382 data = NETXEN_PORT_MODE_AUTO_NEG_1G; 383 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); 384 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) { 385 data = NETXEN_PORT_MODE_AUTO_NEG_XG; 386 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); 387 } else { 388 data = NETXEN_PORT_MODE_AUTO_NEG; 389 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); 390 } 391 392 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) && 393 (wol_port_mode != NETXEN_PORT_MODE_XG) && 394 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) && 395 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) { 396 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG; 397 } 398 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode); 399 } 400 } 401 402 #define PCI_CAP_ID_GEN 0x10 403 404 static void netxen_pcie_strap_init(struct netxen_adapter *adapter) 405 { 406 u32 pdevfuncsave; 407 u32 c8c9value = 0; 408 u32 chicken = 0; 409 u32 control = 0; 410 int i, pos; 411 struct pci_dev *pdev; 412 413 pdev = adapter->pdev; 414 415 chicken = NXRD32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3)); 416 /* clear chicken3.25:24 */ 417 chicken &= 0xFCFFFFFF; 418 /* 419 * if gen1 and B0, set F1020 - if gen 2, do nothing 420 * if gen2 set to F1000 421 */ 422 pos = pci_find_capability(pdev, PCI_CAP_ID_GEN); 423 if (pos == 0xC0) { 424 pci_read_config_dword(pdev, pos + 0x10, &control); 425 if ((control & 0x000F0000) != 0x00020000) { 426 /* set chicken3.24 if gen1 */ 427 chicken |= 0x01000000; 428 } 429 dev_info(&adapter->pdev->dev, "Gen2 strapping detected\n"); 430 c8c9value = 0xF1000; 431 } else { 432 /* set chicken3.24 if gen1 */ 433 chicken |= 0x01000000; 434 dev_info(&adapter->pdev->dev, "Gen1 strapping detected\n"); 435 if (adapter->ahw.revision_id == NX_P3_B0) 436 c8c9value = 0xF1020; 437 else 438 c8c9value = 0; 439 } 440 441 NXWR32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3), chicken); 442 443 if (!c8c9value) 444 return; 445 446 pdevfuncsave = pdev->devfn; 447 if (pdevfuncsave & 0x07) 448 return; 449 450 for (i = 0; i < 8; i++) { 451 pci_read_config_dword(pdev, pos + 8, &control); 452 pci_read_config_dword(pdev, pos + 8, &control); 453 pci_write_config_dword(pdev, pos + 8, c8c9value); 454 pdev->devfn++; 455 } 456 pdev->devfn = pdevfuncsave; 457 } 458 459 static void netxen_set_msix_bit(struct pci_dev *pdev, int enable) 460 { 461 u32 control; 462 int pos; 463 464 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX); 465 if (pos) { 466 pci_read_config_dword(pdev, pos, &control); 467 if (enable) 468 control |= PCI_MSIX_FLAGS_ENABLE; 469 else 470 control = 0; 471 pci_write_config_dword(pdev, pos, control); 472 } 473 } 474 475 static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count) 476 { 477 int i; 478 479 for (i = 0; i < count; i++) 480 adapter->msix_entries[i].entry = i; 481 } 482 483 static int 484 netxen_read_mac_addr(struct netxen_adapter *adapter) 485 { 486 int i; 487 unsigned char *p; 488 u64 mac_addr; 489 struct net_device *netdev = adapter->netdev; 490 struct pci_dev *pdev = adapter->pdev; 491 492 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 493 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0) 494 return -EIO; 495 } else { 496 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0) 497 return -EIO; 498 } 499 500 p = (unsigned char *)&mac_addr; 501 for (i = 0; i < 6; i++) 502 netdev->dev_addr[i] = *(p + 5 - i); 503 504 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len); 505 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len); 506 507 /* set station address */ 508 509 if (!is_valid_ether_addr(netdev->perm_addr)) 510 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr); 511 512 return 0; 513 } 514 515 static int netxen_nic_set_mac(struct net_device *netdev, void *p) 516 { 517 struct netxen_adapter *adapter = netdev_priv(netdev); 518 struct sockaddr *addr = p; 519 520 if (!is_valid_ether_addr(addr->sa_data)) 521 return -EADDRNOTAVAIL; 522 523 if (netif_running(netdev)) { 524 netif_device_detach(netdev); 525 netxen_napi_disable(adapter); 526 } 527 528 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len); 529 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); 530 adapter->macaddr_set(adapter, addr->sa_data); 531 532 if (netif_running(netdev)) { 533 netif_device_attach(netdev); 534 netxen_napi_enable(adapter); 535 } 536 return 0; 537 } 538 539 static void netxen_set_multicast_list(struct net_device *dev) 540 { 541 struct netxen_adapter *adapter = netdev_priv(dev); 542 543 adapter->set_multi(dev); 544 } 545 546 static netdev_features_t netxen_fix_features(struct net_device *dev, 547 netdev_features_t features) 548 { 549 if (!(features & NETIF_F_RXCSUM)) { 550 netdev_info(dev, "disabling LRO as RXCSUM is off\n"); 551 552 features &= ~NETIF_F_LRO; 553 } 554 555 return features; 556 } 557 558 static int netxen_set_features(struct net_device *dev, 559 netdev_features_t features) 560 { 561 struct netxen_adapter *adapter = netdev_priv(dev); 562 int hw_lro; 563 564 if (!((dev->features ^ features) & NETIF_F_LRO)) 565 return 0; 566 567 hw_lro = (features & NETIF_F_LRO) ? NETXEN_NIC_LRO_ENABLED 568 : NETXEN_NIC_LRO_DISABLED; 569 570 if (netxen_config_hw_lro(adapter, hw_lro)) 571 return -EIO; 572 573 if (!(features & NETIF_F_LRO) && netxen_send_lro_cleanup(adapter)) 574 return -EIO; 575 576 return 0; 577 } 578 579 static const struct net_device_ops netxen_netdev_ops = { 580 .ndo_open = netxen_nic_open, 581 .ndo_stop = netxen_nic_close, 582 .ndo_start_xmit = netxen_nic_xmit_frame, 583 .ndo_get_stats64 = netxen_nic_get_stats, 584 .ndo_validate_addr = eth_validate_addr, 585 .ndo_set_rx_mode = netxen_set_multicast_list, 586 .ndo_set_mac_address = netxen_nic_set_mac, 587 .ndo_change_mtu = netxen_nic_change_mtu, 588 .ndo_tx_timeout = netxen_tx_timeout, 589 .ndo_fix_features = netxen_fix_features, 590 .ndo_set_features = netxen_set_features, 591 #ifdef CONFIG_NET_POLL_CONTROLLER 592 .ndo_poll_controller = netxen_nic_poll_controller, 593 #endif 594 }; 595 596 static void 597 netxen_setup_intr(struct netxen_adapter *adapter) 598 { 599 struct netxen_legacy_intr_set *legacy_intrp; 600 struct pci_dev *pdev = adapter->pdev; 601 int err, num_msix; 602 603 if (adapter->rss_supported) { 604 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ? 605 MSIX_ENTRIES_PER_ADAPTER : 2; 606 } else 607 num_msix = 1; 608 609 adapter->max_sds_rings = 1; 610 611 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED); 612 613 if (adapter->ahw.revision_id >= NX_P3_B0) 614 legacy_intrp = &legacy_intr[adapter->ahw.pci_func]; 615 else 616 legacy_intrp = &legacy_intr[0]; 617 618 adapter->int_vec_bit = legacy_intrp->int_vec_bit; 619 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, 620 legacy_intrp->tgt_status_reg); 621 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter, 622 legacy_intrp->tgt_mask_reg); 623 adapter->pci_int_reg = netxen_get_ioaddr(adapter, 624 legacy_intrp->pci_int_reg); 625 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR); 626 627 if (adapter->ahw.revision_id >= NX_P3_B1) 628 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter, 629 ISR_INT_STATE_REG); 630 else 631 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter, 632 CRB_INT_VECTOR); 633 634 netxen_set_msix_bit(pdev, 0); 635 636 if (adapter->msix_supported) { 637 638 netxen_init_msix_entries(adapter, num_msix); 639 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix); 640 if (err == 0) { 641 adapter->flags |= NETXEN_NIC_MSIX_ENABLED; 642 netxen_set_msix_bit(pdev, 1); 643 644 if (adapter->rss_supported) 645 adapter->max_sds_rings = num_msix; 646 647 dev_info(&pdev->dev, "using msi-x interrupts\n"); 648 return; 649 } 650 651 if (err > 0) 652 pci_disable_msix(pdev); 653 654 /* fall through for msi */ 655 } 656 657 if (use_msi && !pci_enable_msi(pdev)) { 658 adapter->flags |= NETXEN_NIC_MSI_ENABLED; 659 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, 660 msi_tgt_status[adapter->ahw.pci_func]); 661 dev_info(&pdev->dev, "using msi interrupts\n"); 662 adapter->msix_entries[0].vector = pdev->irq; 663 return; 664 } 665 666 dev_info(&pdev->dev, "using legacy interrupts\n"); 667 adapter->msix_entries[0].vector = pdev->irq; 668 } 669 670 static void 671 netxen_teardown_intr(struct netxen_adapter *adapter) 672 { 673 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) 674 pci_disable_msix(adapter->pdev); 675 if (adapter->flags & NETXEN_NIC_MSI_ENABLED) 676 pci_disable_msi(adapter->pdev); 677 } 678 679 static void 680 netxen_cleanup_pci_map(struct netxen_adapter *adapter) 681 { 682 if (adapter->ahw.db_base != NULL) 683 iounmap(adapter->ahw.db_base); 684 if (adapter->ahw.pci_base0 != NULL) 685 iounmap(adapter->ahw.pci_base0); 686 if (adapter->ahw.pci_base1 != NULL) 687 iounmap(adapter->ahw.pci_base1); 688 if (adapter->ahw.pci_base2 != NULL) 689 iounmap(adapter->ahw.pci_base2); 690 } 691 692 static int 693 netxen_setup_pci_map(struct netxen_adapter *adapter) 694 { 695 void __iomem *db_ptr = NULL; 696 697 resource_size_t mem_base, db_base; 698 unsigned long mem_len, db_len = 0; 699 700 struct pci_dev *pdev = adapter->pdev; 701 int pci_func = adapter->ahw.pci_func; 702 struct netxen_hardware_context *ahw = &adapter->ahw; 703 704 int err = 0; 705 706 /* 707 * Set the CRB window to invalid. If any register in window 0 is 708 * accessed it should set the window to 0 and then reset it to 1. 709 */ 710 adapter->ahw.crb_win = -1; 711 adapter->ahw.ocm_win = -1; 712 713 /* remap phys address */ 714 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ 715 mem_len = pci_resource_len(pdev, 0); 716 717 /* 128 Meg of memory */ 718 if (mem_len == NETXEN_PCI_128MB_SIZE) { 719 720 ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE); 721 ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START, 722 SECOND_PAGE_GROUP_SIZE); 723 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START, 724 THIRD_PAGE_GROUP_SIZE); 725 if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL || 726 ahw->pci_base2 == NULL) { 727 dev_err(&pdev->dev, "failed to map PCI bar 0\n"); 728 err = -EIO; 729 goto err_out; 730 } 731 732 ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE; 733 734 } else if (mem_len == NETXEN_PCI_32MB_SIZE) { 735 736 ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE); 737 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START - 738 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE); 739 if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) { 740 dev_err(&pdev->dev, "failed to map PCI bar 0\n"); 741 err = -EIO; 742 goto err_out; 743 } 744 745 } else if (mem_len == NETXEN_PCI_2MB_SIZE) { 746 747 ahw->pci_base0 = pci_ioremap_bar(pdev, 0); 748 if (ahw->pci_base0 == NULL) { 749 dev_err(&pdev->dev, "failed to map PCI bar 0\n"); 750 return -EIO; 751 } 752 ahw->pci_len0 = mem_len; 753 } else { 754 return -EIO; 755 } 756 757 netxen_setup_hwops(adapter); 758 759 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20)); 760 761 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) { 762 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter, 763 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func))); 764 765 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 766 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter, 767 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func))); 768 } 769 770 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 771 goto skip_doorbell; 772 773 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ 774 db_len = pci_resource_len(pdev, 4); 775 776 if (db_len == 0) { 777 printk(KERN_ERR "%s: doorbell is disabled\n", 778 netxen_nic_driver_name); 779 err = -EIO; 780 goto err_out; 781 } 782 783 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES); 784 if (!db_ptr) { 785 printk(KERN_ERR "%s: Failed to allocate doorbell map.", 786 netxen_nic_driver_name); 787 err = -EIO; 788 goto err_out; 789 } 790 791 skip_doorbell: 792 adapter->ahw.db_base = db_ptr; 793 adapter->ahw.db_len = db_len; 794 return 0; 795 796 err_out: 797 netxen_cleanup_pci_map(adapter); 798 return err; 799 } 800 801 static void 802 netxen_check_options(struct netxen_adapter *adapter) 803 { 804 u32 fw_major, fw_minor, fw_build, prev_fw_version; 805 char brd_name[NETXEN_MAX_SHORT_NAME]; 806 char serial_num[32]; 807 int i, offset, val, err; 808 __le32 *ptr32; 809 struct pci_dev *pdev = adapter->pdev; 810 811 adapter->driver_mismatch = 0; 812 813 ptr32 = (__le32 *)&serial_num; 814 offset = NX_FW_SERIAL_NUM_OFFSET; 815 for (i = 0; i < 8; i++) { 816 if (netxen_rom_fast_read(adapter, offset, &val) == -1) { 817 dev_err(&pdev->dev, "error reading board info\n"); 818 adapter->driver_mismatch = 1; 819 return; 820 } 821 ptr32[i] = cpu_to_le32(val); 822 offset += sizeof(u32); 823 } 824 825 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR); 826 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR); 827 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB); 828 prev_fw_version = adapter->fw_version; 829 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build); 830 831 /* Get FW Mini Coredump template and store it */ 832 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 833 if (adapter->mdump.md_template == NULL || 834 adapter->fw_version > prev_fw_version) { 835 kfree(adapter->mdump.md_template); 836 adapter->mdump.md_template = NULL; 837 err = netxen_setup_minidump(adapter); 838 if (err) 839 dev_err(&adapter->pdev->dev, 840 "Failed to setup minidump rcode = %d\n", err); 841 } 842 } 843 844 if (adapter->portnum == 0) { 845 get_brd_name_by_type(adapter->ahw.board_type, brd_name); 846 847 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n", 848 module_name(THIS_MODULE), 849 brd_name, serial_num, adapter->ahw.revision_id); 850 } 851 852 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) { 853 adapter->driver_mismatch = 1; 854 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n", 855 fw_major, fw_minor, fw_build); 856 return; 857 } 858 859 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 860 i = NXRD32(adapter, NETXEN_SRE_MISC); 861 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0; 862 } 863 864 dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n", 865 fw_major, fw_minor, fw_build, 866 adapter->ahw.cut_through ? "cut-through" : "legacy"); 867 868 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222)) 869 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1); 870 871 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) { 872 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G; 873 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G; 874 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) { 875 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G; 876 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G; 877 } 878 879 adapter->msix_supported = 0; 880 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 881 adapter->msix_supported = !!use_msi_x; 882 adapter->rss_supported = !!use_msi_x; 883 } else { 884 u32 flashed_ver = 0; 885 netxen_rom_fast_read(adapter, 886 NX_FW_VERSION_OFFSET, (int *)&flashed_ver); 887 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver); 888 889 if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) { 890 switch (adapter->ahw.board_type) { 891 case NETXEN_BRDTYPE_P2_SB31_10G: 892 case NETXEN_BRDTYPE_P2_SB31_10G_CX4: 893 adapter->msix_supported = !!use_msi_x; 894 adapter->rss_supported = !!use_msi_x; 895 break; 896 default: 897 break; 898 } 899 } 900 } 901 902 adapter->num_txd = MAX_CMD_DESCRIPTORS; 903 904 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 905 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS; 906 adapter->max_rds_rings = 3; 907 } else { 908 adapter->num_lro_rxd = 0; 909 adapter->max_rds_rings = 2; 910 } 911 } 912 913 static int 914 netxen_start_firmware(struct netxen_adapter *adapter) 915 { 916 int val, err, first_boot; 917 struct pci_dev *pdev = adapter->pdev; 918 919 /* required for NX2031 dummy dma */ 920 err = nx_set_dma_mask(adapter); 921 if (err) 922 return err; 923 924 err = netxen_can_start_firmware(adapter); 925 926 if (err < 0) 927 return err; 928 929 if (!err) 930 goto wait_init; 931 932 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc)); 933 934 err = netxen_check_hw_init(adapter, first_boot); 935 if (err) { 936 dev_err(&pdev->dev, "error in init HW init sequence\n"); 937 return err; 938 } 939 940 netxen_request_firmware(adapter); 941 942 err = netxen_need_fw_reset(adapter); 943 if (err < 0) 944 goto err_out; 945 if (err == 0) 946 goto pcie_strap_init; 947 948 if (first_boot != 0x55555555) { 949 NXWR32(adapter, CRB_CMDPEG_STATE, 0); 950 netxen_pinit_from_rom(adapter); 951 msleep(1); 952 } 953 954 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555); 955 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0); 956 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0); 957 958 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 959 netxen_set_port_mode(adapter); 960 961 err = netxen_load_firmware(adapter); 962 if (err) 963 goto err_out; 964 965 netxen_release_firmware(adapter); 966 967 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 968 969 /* Initialize multicast addr pool owners */ 970 val = 0x7654; 971 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) 972 val |= 0x0f000000; 973 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val); 974 975 } 976 977 err = netxen_init_dummy_dma(adapter); 978 if (err) 979 goto err_out; 980 981 /* 982 * Tell the hardware our version number. 983 */ 984 val = (_NETXEN_NIC_LINUX_MAJOR << 16) 985 | ((_NETXEN_NIC_LINUX_MINOR << 8)) 986 | (_NETXEN_NIC_LINUX_SUBVERSION); 987 NXWR32(adapter, CRB_DRIVER_VERSION, val); 988 989 pcie_strap_init: 990 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 991 netxen_pcie_strap_init(adapter); 992 993 wait_init: 994 /* Handshake with the card before we register the devices. */ 995 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE); 996 if (err) { 997 netxen_free_dummy_dma(adapter); 998 goto err_out; 999 } 1000 1001 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY); 1002 1003 nx_update_dma_mask(adapter); 1004 1005 netxen_check_options(adapter); 1006 1007 adapter->need_fw_reset = 0; 1008 1009 /* fall through and release firmware */ 1010 1011 err_out: 1012 netxen_release_firmware(adapter); 1013 return err; 1014 } 1015 1016 static int 1017 netxen_nic_request_irq(struct netxen_adapter *adapter) 1018 { 1019 irq_handler_t handler; 1020 struct nx_host_sds_ring *sds_ring; 1021 int err, ring; 1022 1023 unsigned long flags = 0; 1024 struct net_device *netdev = adapter->netdev; 1025 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 1026 1027 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) 1028 handler = netxen_msix_intr; 1029 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED) 1030 handler = netxen_msi_intr; 1031 else { 1032 flags |= IRQF_SHARED; 1033 handler = netxen_intr; 1034 } 1035 adapter->irq = netdev->irq; 1036 1037 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 1038 sds_ring = &recv_ctx->sds_rings[ring]; 1039 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring); 1040 err = request_irq(sds_ring->irq, handler, 1041 flags, sds_ring->name, sds_ring); 1042 if (err) 1043 return err; 1044 } 1045 1046 return 0; 1047 } 1048 1049 static void 1050 netxen_nic_free_irq(struct netxen_adapter *adapter) 1051 { 1052 int ring; 1053 struct nx_host_sds_ring *sds_ring; 1054 1055 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 1056 1057 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 1058 sds_ring = &recv_ctx->sds_rings[ring]; 1059 free_irq(sds_ring->irq, sds_ring); 1060 } 1061 } 1062 1063 static void 1064 netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter) 1065 { 1066 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT; 1067 adapter->coal.normal.data.rx_time_us = 1068 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US; 1069 adapter->coal.normal.data.rx_packets = 1070 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS; 1071 adapter->coal.normal.data.tx_time_us = 1072 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US; 1073 adapter->coal.normal.data.tx_packets = 1074 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS; 1075 } 1076 1077 /* with rtnl_lock */ 1078 static int 1079 __netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev) 1080 { 1081 int err; 1082 1083 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 1084 return -EIO; 1085 1086 err = adapter->init_port(adapter, adapter->physical_port); 1087 if (err) { 1088 printk(KERN_ERR "%s: Failed to initialize port %d\n", 1089 netxen_nic_driver_name, adapter->portnum); 1090 return err; 1091 } 1092 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 1093 adapter->macaddr_set(adapter, adapter->mac_addr); 1094 1095 adapter->set_multi(netdev); 1096 adapter->set_mtu(adapter, netdev->mtu); 1097 1098 adapter->ahw.linkup = 0; 1099 1100 if (adapter->max_sds_rings > 1) 1101 netxen_config_rss(adapter, 1); 1102 1103 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1104 netxen_config_intr_coalesce(adapter); 1105 1106 if (netdev->features & NETIF_F_LRO) 1107 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED); 1108 1109 netxen_napi_enable(adapter); 1110 1111 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION) 1112 netxen_linkevent_request(adapter, 1); 1113 else 1114 netxen_nic_set_link_parameters(adapter); 1115 1116 set_bit(__NX_DEV_UP, &adapter->state); 1117 return 0; 1118 } 1119 1120 /* Usage: During resume and firmware recovery module.*/ 1121 1122 static inline int 1123 netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev) 1124 { 1125 int err = 0; 1126 1127 rtnl_lock(); 1128 if (netif_running(netdev)) 1129 err = __netxen_nic_up(adapter, netdev); 1130 rtnl_unlock(); 1131 1132 return err; 1133 } 1134 1135 /* with rtnl_lock */ 1136 static void 1137 __netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) 1138 { 1139 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 1140 return; 1141 1142 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state)) 1143 return; 1144 1145 smp_mb(); 1146 spin_lock(&adapter->tx_clean_lock); 1147 netif_carrier_off(netdev); 1148 netif_tx_disable(netdev); 1149 1150 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION) 1151 netxen_linkevent_request(adapter, 0); 1152 1153 if (adapter->stop_port) 1154 adapter->stop_port(adapter); 1155 1156 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1157 netxen_p3_free_mac_list(adapter); 1158 1159 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE); 1160 1161 netxen_napi_disable(adapter); 1162 1163 netxen_release_tx_buffers(adapter); 1164 spin_unlock(&adapter->tx_clean_lock); 1165 } 1166 1167 /* Usage: During suspend and firmware recovery module */ 1168 1169 static inline void 1170 netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) 1171 { 1172 rtnl_lock(); 1173 if (netif_running(netdev)) 1174 __netxen_nic_down(adapter, netdev); 1175 rtnl_unlock(); 1176 1177 } 1178 1179 static int 1180 netxen_nic_attach(struct netxen_adapter *adapter) 1181 { 1182 struct net_device *netdev = adapter->netdev; 1183 struct pci_dev *pdev = adapter->pdev; 1184 int err, ring; 1185 struct nx_host_rds_ring *rds_ring; 1186 struct nx_host_tx_ring *tx_ring; 1187 u32 capab2; 1188 1189 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) 1190 return 0; 1191 1192 err = netxen_init_firmware(adapter); 1193 if (err) 1194 return err; 1195 1196 adapter->flags &= ~NETXEN_FW_MSS_CAP; 1197 if (adapter->capabilities & NX_FW_CAPABILITY_MORE_CAPS) { 1198 capab2 = NXRD32(adapter, CRB_FW_CAPABILITIES_2); 1199 if (capab2 & NX_FW_CAPABILITY_2_LRO_MAX_TCP_SEG) 1200 adapter->flags |= NETXEN_FW_MSS_CAP; 1201 } 1202 1203 err = netxen_napi_add(adapter, netdev); 1204 if (err) 1205 return err; 1206 1207 err = netxen_alloc_sw_resources(adapter); 1208 if (err) { 1209 printk(KERN_ERR "%s: Error in setting sw resources\n", 1210 netdev->name); 1211 return err; 1212 } 1213 1214 err = netxen_alloc_hw_resources(adapter); 1215 if (err) { 1216 printk(KERN_ERR "%s: Error in setting hw resources\n", 1217 netdev->name); 1218 goto err_out_free_sw; 1219 } 1220 1221 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 1222 tx_ring = adapter->tx_ring; 1223 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter, 1224 crb_cmd_producer[adapter->portnum]); 1225 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter, 1226 crb_cmd_consumer[adapter->portnum]); 1227 1228 tx_ring->producer = 0; 1229 tx_ring->sw_consumer = 0; 1230 1231 netxen_nic_update_cmd_producer(adapter, tx_ring); 1232 netxen_nic_update_cmd_consumer(adapter, tx_ring); 1233 } 1234 1235 for (ring = 0; ring < adapter->max_rds_rings; ring++) { 1236 rds_ring = &adapter->recv_ctx.rds_rings[ring]; 1237 netxen_post_rx_buffers(adapter, ring, rds_ring); 1238 } 1239 1240 err = netxen_nic_request_irq(adapter); 1241 if (err) { 1242 dev_err(&pdev->dev, "%s: failed to setup interrupt\n", 1243 netdev->name); 1244 goto err_out_free_rxbuf; 1245 } 1246 1247 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1248 netxen_nic_init_coalesce_defaults(adapter); 1249 1250 netxen_create_sysfs_entries(adapter); 1251 1252 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC; 1253 return 0; 1254 1255 err_out_free_rxbuf: 1256 netxen_release_rx_buffers(adapter); 1257 netxen_free_hw_resources(adapter); 1258 err_out_free_sw: 1259 netxen_free_sw_resources(adapter); 1260 return err; 1261 } 1262 1263 static void 1264 netxen_nic_detach(struct netxen_adapter *adapter) 1265 { 1266 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 1267 return; 1268 1269 netxen_remove_sysfs_entries(adapter); 1270 1271 netxen_free_hw_resources(adapter); 1272 netxen_release_rx_buffers(adapter); 1273 netxen_nic_free_irq(adapter); 1274 netxen_napi_del(adapter); 1275 netxen_free_sw_resources(adapter); 1276 1277 adapter->is_up = 0; 1278 } 1279 1280 int 1281 netxen_nic_reset_context(struct netxen_adapter *adapter) 1282 { 1283 int err = 0; 1284 struct net_device *netdev = adapter->netdev; 1285 1286 if (test_and_set_bit(__NX_RESETTING, &adapter->state)) 1287 return -EBUSY; 1288 1289 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { 1290 1291 netif_device_detach(netdev); 1292 1293 if (netif_running(netdev)) 1294 __netxen_nic_down(adapter, netdev); 1295 1296 netxen_nic_detach(adapter); 1297 1298 if (netif_running(netdev)) { 1299 err = netxen_nic_attach(adapter); 1300 if (!err) 1301 err = __netxen_nic_up(adapter, netdev); 1302 1303 if (err) 1304 goto done; 1305 } 1306 1307 netif_device_attach(netdev); 1308 } 1309 1310 done: 1311 clear_bit(__NX_RESETTING, &adapter->state); 1312 return err; 1313 } 1314 1315 static int 1316 netxen_setup_netdev(struct netxen_adapter *adapter, 1317 struct net_device *netdev) 1318 { 1319 int err = 0; 1320 struct pci_dev *pdev = adapter->pdev; 1321 1322 adapter->mc_enabled = 0; 1323 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1324 adapter->max_mc_count = 38; 1325 else 1326 adapter->max_mc_count = 16; 1327 1328 netdev->netdev_ops = &netxen_netdev_ops; 1329 netdev->watchdog_timeo = 5*HZ; 1330 1331 netxen_nic_change_mtu(netdev, netdev->mtu); 1332 1333 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops); 1334 1335 netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO | 1336 NETIF_F_RXCSUM; 1337 1338 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1339 netdev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6; 1340 1341 netdev->vlan_features |= netdev->hw_features; 1342 1343 if (adapter->pci_using_dac) { 1344 netdev->features |= NETIF_F_HIGHDMA; 1345 netdev->vlan_features |= NETIF_F_HIGHDMA; 1346 } 1347 1348 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX) 1349 netdev->hw_features |= NETIF_F_HW_VLAN_TX; 1350 1351 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO) 1352 netdev->hw_features |= NETIF_F_LRO; 1353 1354 netdev->features |= netdev->hw_features; 1355 1356 netdev->irq = adapter->msix_entries[0].vector; 1357 1358 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task); 1359 1360 if (netxen_read_mac_addr(adapter)) 1361 dev_warn(&pdev->dev, "failed to read mac addr\n"); 1362 1363 netif_carrier_off(netdev); 1364 1365 err = register_netdev(netdev); 1366 if (err) { 1367 dev_err(&pdev->dev, "failed to register net device\n"); 1368 return err; 1369 } 1370 1371 return 0; 1372 } 1373 1374 #ifdef CONFIG_PCIEAER 1375 static void netxen_mask_aer_correctable(struct netxen_adapter *adapter) 1376 { 1377 struct pci_dev *pdev = adapter->pdev; 1378 struct pci_dev *root = pdev->bus->self; 1379 u32 aer_pos; 1380 1381 if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM && 1382 adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP) 1383 return; 1384 1385 if (root->pcie_type != PCI_EXP_TYPE_ROOT_PORT) 1386 return; 1387 1388 aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR); 1389 if (!aer_pos) 1390 return; 1391 1392 pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff); 1393 } 1394 #endif 1395 1396 static int __devinit 1397 netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 1398 { 1399 struct net_device *netdev = NULL; 1400 struct netxen_adapter *adapter = NULL; 1401 int i = 0, err; 1402 int pci_func_id = PCI_FUNC(pdev->devfn); 1403 uint8_t revision_id; 1404 u32 val; 1405 1406 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) { 1407 pr_warning("%s: chip revisions between 0x%x-0x%x " 1408 "will not be enabled.\n", 1409 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1); 1410 return -ENODEV; 1411 } 1412 1413 if ((err = pci_enable_device(pdev))) 1414 return err; 1415 1416 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { 1417 err = -ENODEV; 1418 goto err_out_disable_pdev; 1419 } 1420 1421 if ((err = pci_request_regions(pdev, netxen_nic_driver_name))) 1422 goto err_out_disable_pdev; 1423 1424 if (NX_IS_REVISION_P3(pdev->revision)) 1425 pci_enable_pcie_error_reporting(pdev); 1426 1427 pci_set_master(pdev); 1428 1429 netdev = alloc_etherdev(sizeof(struct netxen_adapter)); 1430 if(!netdev) { 1431 err = -ENOMEM; 1432 goto err_out_free_res; 1433 } 1434 1435 SET_NETDEV_DEV(netdev, &pdev->dev); 1436 1437 adapter = netdev_priv(netdev); 1438 adapter->netdev = netdev; 1439 adapter->pdev = pdev; 1440 adapter->ahw.pci_func = pci_func_id; 1441 1442 revision_id = pdev->revision; 1443 adapter->ahw.revision_id = revision_id; 1444 1445 rwlock_init(&adapter->ahw.crb_lock); 1446 spin_lock_init(&adapter->ahw.mem_lock); 1447 1448 spin_lock_init(&adapter->tx_clean_lock); 1449 INIT_LIST_HEAD(&adapter->mac_list); 1450 INIT_LIST_HEAD(&adapter->vlan_ip_list); 1451 1452 err = netxen_setup_pci_map(adapter); 1453 if (err) 1454 goto err_out_free_netdev; 1455 1456 /* This will be reset for mezz cards */ 1457 adapter->portnum = pci_func_id; 1458 1459 err = netxen_nic_get_board_info(adapter); 1460 if (err) { 1461 dev_err(&pdev->dev, "Error getting board config info.\n"); 1462 goto err_out_iounmap; 1463 } 1464 1465 #ifdef CONFIG_PCIEAER 1466 netxen_mask_aer_correctable(adapter); 1467 #endif 1468 1469 /* Mezz cards have PCI function 0,2,3 enabled */ 1470 switch (adapter->ahw.board_type) { 1471 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ: 1472 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ: 1473 if (pci_func_id >= 2) 1474 adapter->portnum = pci_func_id - 2; 1475 break; 1476 default: 1477 break; 1478 } 1479 1480 err = netxen_check_flash_fw_compatibility(adapter); 1481 if (err) 1482 goto err_out_iounmap; 1483 1484 if (adapter->portnum == 0) { 1485 val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 1486 if (val != 0xffffffff && val != 0) { 1487 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0); 1488 adapter->need_fw_reset = 1; 1489 } 1490 } 1491 1492 err = netxen_start_firmware(adapter); 1493 if (err) 1494 goto err_out_decr_ref; 1495 1496 /* 1497 * See if the firmware gave us a virtual-physical port mapping. 1498 */ 1499 adapter->physical_port = adapter->portnum; 1500 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 1501 i = NXRD32(adapter, CRB_V2P(adapter->portnum)); 1502 if (i != 0x55555555) 1503 adapter->physical_port = i; 1504 } 1505 1506 netxen_nic_clear_stats(adapter); 1507 1508 netxen_setup_intr(adapter); 1509 1510 err = netxen_setup_netdev(adapter, netdev); 1511 if (err) 1512 goto err_out_disable_msi; 1513 1514 pci_set_drvdata(pdev, adapter); 1515 1516 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 1517 1518 switch (adapter->ahw.port_type) { 1519 case NETXEN_NIC_GBE: 1520 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n", 1521 adapter->netdev->name); 1522 break; 1523 case NETXEN_NIC_XGBE: 1524 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n", 1525 adapter->netdev->name); 1526 break; 1527 } 1528 1529 netxen_create_diag_entries(adapter); 1530 1531 return 0; 1532 1533 err_out_disable_msi: 1534 netxen_teardown_intr(adapter); 1535 1536 netxen_free_dummy_dma(adapter); 1537 1538 err_out_decr_ref: 1539 nx_decr_dev_ref_cnt(adapter); 1540 1541 err_out_iounmap: 1542 netxen_cleanup_pci_map(adapter); 1543 1544 err_out_free_netdev: 1545 free_netdev(netdev); 1546 1547 err_out_free_res: 1548 pci_release_regions(pdev); 1549 1550 err_out_disable_pdev: 1551 pci_set_drvdata(pdev, NULL); 1552 pci_disable_device(pdev); 1553 return err; 1554 } 1555 1556 static 1557 void netxen_cleanup_minidump(struct netxen_adapter *adapter) 1558 { 1559 kfree(adapter->mdump.md_template); 1560 adapter->mdump.md_template = NULL; 1561 1562 if (adapter->mdump.md_capture_buff) { 1563 vfree(adapter->mdump.md_capture_buff); 1564 adapter->mdump.md_capture_buff = NULL; 1565 } 1566 } 1567 1568 static void __devexit netxen_nic_remove(struct pci_dev *pdev) 1569 { 1570 struct netxen_adapter *adapter; 1571 struct net_device *netdev; 1572 1573 adapter = pci_get_drvdata(pdev); 1574 if (adapter == NULL) 1575 return; 1576 1577 netdev = adapter->netdev; 1578 1579 netxen_cancel_fw_work(adapter); 1580 1581 unregister_netdev(netdev); 1582 1583 cancel_work_sync(&adapter->tx_timeout_task); 1584 1585 netxen_free_vlan_ip_list(adapter); 1586 netxen_nic_detach(adapter); 1587 1588 nx_decr_dev_ref_cnt(adapter); 1589 1590 if (adapter->portnum == 0) 1591 netxen_free_dummy_dma(adapter); 1592 1593 clear_bit(__NX_RESETTING, &adapter->state); 1594 1595 netxen_teardown_intr(adapter); 1596 1597 netxen_remove_diag_entries(adapter); 1598 1599 netxen_cleanup_pci_map(adapter); 1600 1601 netxen_release_firmware(adapter); 1602 1603 if (NX_IS_REVISION_P3(pdev->revision)) { 1604 netxen_cleanup_minidump(adapter); 1605 pci_disable_pcie_error_reporting(pdev); 1606 } 1607 1608 pci_release_regions(pdev); 1609 pci_disable_device(pdev); 1610 pci_set_drvdata(pdev, NULL); 1611 1612 free_netdev(netdev); 1613 } 1614 1615 static void netxen_nic_detach_func(struct netxen_adapter *adapter) 1616 { 1617 struct net_device *netdev = adapter->netdev; 1618 1619 netif_device_detach(netdev); 1620 1621 netxen_cancel_fw_work(adapter); 1622 1623 if (netif_running(netdev)) 1624 netxen_nic_down(adapter, netdev); 1625 1626 cancel_work_sync(&adapter->tx_timeout_task); 1627 1628 netxen_nic_detach(adapter); 1629 1630 if (adapter->portnum == 0) 1631 netxen_free_dummy_dma(adapter); 1632 1633 nx_decr_dev_ref_cnt(adapter); 1634 1635 clear_bit(__NX_RESETTING, &adapter->state); 1636 } 1637 1638 static int netxen_nic_attach_func(struct pci_dev *pdev) 1639 { 1640 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1641 struct net_device *netdev = adapter->netdev; 1642 int err; 1643 1644 err = pci_enable_device(pdev); 1645 if (err) 1646 return err; 1647 1648 pci_set_power_state(pdev, PCI_D0); 1649 pci_set_master(pdev); 1650 pci_restore_state(pdev); 1651 1652 adapter->ahw.crb_win = -1; 1653 adapter->ahw.ocm_win = -1; 1654 1655 err = netxen_start_firmware(adapter); 1656 if (err) { 1657 dev_err(&pdev->dev, "failed to start firmware\n"); 1658 return err; 1659 } 1660 1661 if (netif_running(netdev)) { 1662 err = netxen_nic_attach(adapter); 1663 if (err) 1664 goto err_out; 1665 1666 err = netxen_nic_up(adapter, netdev); 1667 if (err) 1668 goto err_out_detach; 1669 1670 netxen_restore_indev_addr(netdev, NETDEV_UP); 1671 } 1672 1673 netif_device_attach(netdev); 1674 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 1675 return 0; 1676 1677 err_out_detach: 1678 netxen_nic_detach(adapter); 1679 err_out: 1680 nx_decr_dev_ref_cnt(adapter); 1681 return err; 1682 } 1683 1684 static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev, 1685 pci_channel_state_t state) 1686 { 1687 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1688 1689 if (state == pci_channel_io_perm_failure) 1690 return PCI_ERS_RESULT_DISCONNECT; 1691 1692 if (nx_dev_request_aer(adapter)) 1693 return PCI_ERS_RESULT_RECOVERED; 1694 1695 netxen_nic_detach_func(adapter); 1696 1697 pci_disable_device(pdev); 1698 1699 return PCI_ERS_RESULT_NEED_RESET; 1700 } 1701 1702 static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev) 1703 { 1704 int err = 0; 1705 1706 err = netxen_nic_attach_func(pdev); 1707 1708 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED; 1709 } 1710 1711 static void netxen_io_resume(struct pci_dev *pdev) 1712 { 1713 pci_cleanup_aer_uncorrect_error_status(pdev); 1714 } 1715 1716 static void netxen_nic_shutdown(struct pci_dev *pdev) 1717 { 1718 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1719 1720 netxen_nic_detach_func(adapter); 1721 1722 if (pci_save_state(pdev)) 1723 return; 1724 1725 if (netxen_nic_wol_supported(adapter)) { 1726 pci_enable_wake(pdev, PCI_D3cold, 1); 1727 pci_enable_wake(pdev, PCI_D3hot, 1); 1728 } 1729 1730 pci_disable_device(pdev); 1731 } 1732 1733 #ifdef CONFIG_PM 1734 static int 1735 netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state) 1736 { 1737 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1738 int retval; 1739 1740 netxen_nic_detach_func(adapter); 1741 1742 retval = pci_save_state(pdev); 1743 if (retval) 1744 return retval; 1745 1746 if (netxen_nic_wol_supported(adapter)) { 1747 pci_enable_wake(pdev, PCI_D3cold, 1); 1748 pci_enable_wake(pdev, PCI_D3hot, 1); 1749 } 1750 1751 pci_disable_device(pdev); 1752 pci_set_power_state(pdev, pci_choose_state(pdev, state)); 1753 1754 return 0; 1755 } 1756 1757 static int 1758 netxen_nic_resume(struct pci_dev *pdev) 1759 { 1760 return netxen_nic_attach_func(pdev); 1761 } 1762 #endif 1763 1764 static int netxen_nic_open(struct net_device *netdev) 1765 { 1766 struct netxen_adapter *adapter = netdev_priv(netdev); 1767 int err = 0; 1768 1769 if (adapter->driver_mismatch) 1770 return -EIO; 1771 1772 err = netxen_nic_attach(adapter); 1773 if (err) 1774 return err; 1775 1776 err = __netxen_nic_up(adapter, netdev); 1777 if (err) 1778 goto err_out; 1779 1780 netif_start_queue(netdev); 1781 1782 return 0; 1783 1784 err_out: 1785 netxen_nic_detach(adapter); 1786 return err; 1787 } 1788 1789 /* 1790 * netxen_nic_close - Disables a network interface entry point 1791 */ 1792 static int netxen_nic_close(struct net_device *netdev) 1793 { 1794 struct netxen_adapter *adapter = netdev_priv(netdev); 1795 1796 __netxen_nic_down(adapter, netdev); 1797 return 0; 1798 } 1799 1800 static void 1801 netxen_tso_check(struct net_device *netdev, 1802 struct nx_host_tx_ring *tx_ring, 1803 struct cmd_desc_type0 *first_desc, 1804 struct sk_buff *skb) 1805 { 1806 u8 opcode = TX_ETHER_PKT; 1807 __be16 protocol = skb->protocol; 1808 u16 flags = 0, vid = 0; 1809 u32 producer; 1810 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0; 1811 struct cmd_desc_type0 *hwdesc; 1812 struct vlan_ethhdr *vh; 1813 1814 if (protocol == cpu_to_be16(ETH_P_8021Q)) { 1815 1816 vh = (struct vlan_ethhdr *)skb->data; 1817 protocol = vh->h_vlan_encapsulated_proto; 1818 flags = FLAGS_VLAN_TAGGED; 1819 1820 } else if (vlan_tx_tag_present(skb)) { 1821 flags = FLAGS_VLAN_OOB; 1822 vid = vlan_tx_tag_get(skb); 1823 netxen_set_tx_vlan_tci(first_desc, vid); 1824 vlan_oob = 1; 1825 } 1826 1827 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) && 1828 skb_shinfo(skb)->gso_size > 0) { 1829 1830 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); 1831 1832 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); 1833 first_desc->total_hdr_length = hdr_len; 1834 if (vlan_oob) { 1835 first_desc->total_hdr_length += VLAN_HLEN; 1836 first_desc->tcp_hdr_offset = VLAN_HLEN; 1837 first_desc->ip_hdr_offset = VLAN_HLEN; 1838 /* Only in case of TSO on vlan device */ 1839 flags |= FLAGS_VLAN_TAGGED; 1840 } 1841 1842 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ? 1843 TX_TCP_LSO6 : TX_TCP_LSO; 1844 tso = 1; 1845 1846 } else if (skb->ip_summed == CHECKSUM_PARTIAL) { 1847 u8 l4proto; 1848 1849 if (protocol == cpu_to_be16(ETH_P_IP)) { 1850 l4proto = ip_hdr(skb)->protocol; 1851 1852 if (l4proto == IPPROTO_TCP) 1853 opcode = TX_TCP_PKT; 1854 else if(l4proto == IPPROTO_UDP) 1855 opcode = TX_UDP_PKT; 1856 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) { 1857 l4proto = ipv6_hdr(skb)->nexthdr; 1858 1859 if (l4proto == IPPROTO_TCP) 1860 opcode = TX_TCPV6_PKT; 1861 else if(l4proto == IPPROTO_UDP) 1862 opcode = TX_UDPV6_PKT; 1863 } 1864 } 1865 1866 first_desc->tcp_hdr_offset += skb_transport_offset(skb); 1867 first_desc->ip_hdr_offset += skb_network_offset(skb); 1868 netxen_set_tx_flags_opcode(first_desc, flags, opcode); 1869 1870 if (!tso) 1871 return; 1872 1873 /* For LSO, we need to copy the MAC/IP/TCP headers into 1874 * the descriptor ring 1875 */ 1876 producer = tx_ring->producer; 1877 copied = 0; 1878 offset = 2; 1879 1880 if (vlan_oob) { 1881 /* Create a TSO vlan header template for firmware */ 1882 1883 hwdesc = &tx_ring->desc_head[producer]; 1884 tx_ring->cmd_buf_arr[producer].skb = NULL; 1885 1886 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset, 1887 hdr_len + VLAN_HLEN); 1888 1889 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2); 1890 skb_copy_from_linear_data(skb, vh, 12); 1891 vh->h_vlan_proto = htons(ETH_P_8021Q); 1892 vh->h_vlan_TCI = htons(vid); 1893 skb_copy_from_linear_data_offset(skb, 12, 1894 (char *)vh + 16, copy_len - 16); 1895 1896 copied = copy_len - VLAN_HLEN; 1897 offset = 0; 1898 1899 producer = get_next_index(producer, tx_ring->num_desc); 1900 } 1901 1902 while (copied < hdr_len) { 1903 1904 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset, 1905 (hdr_len - copied)); 1906 1907 hwdesc = &tx_ring->desc_head[producer]; 1908 tx_ring->cmd_buf_arr[producer].skb = NULL; 1909 1910 skb_copy_from_linear_data_offset(skb, copied, 1911 (char *)hwdesc + offset, copy_len); 1912 1913 copied += copy_len; 1914 offset = 0; 1915 1916 producer = get_next_index(producer, tx_ring->num_desc); 1917 } 1918 1919 tx_ring->producer = producer; 1920 barrier(); 1921 } 1922 1923 static int 1924 netxen_map_tx_skb(struct pci_dev *pdev, 1925 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf) 1926 { 1927 struct netxen_skb_frag *nf; 1928 struct skb_frag_struct *frag; 1929 int i, nr_frags; 1930 dma_addr_t map; 1931 1932 nr_frags = skb_shinfo(skb)->nr_frags; 1933 nf = &pbuf->frag_array[0]; 1934 1935 map = pci_map_single(pdev, skb->data, 1936 skb_headlen(skb), PCI_DMA_TODEVICE); 1937 if (pci_dma_mapping_error(pdev, map)) 1938 goto out_err; 1939 1940 nf->dma = map; 1941 nf->length = skb_headlen(skb); 1942 1943 for (i = 0; i < nr_frags; i++) { 1944 frag = &skb_shinfo(skb)->frags[i]; 1945 nf = &pbuf->frag_array[i+1]; 1946 1947 map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag), 1948 DMA_TO_DEVICE); 1949 if (dma_mapping_error(&pdev->dev, map)) 1950 goto unwind; 1951 1952 nf->dma = map; 1953 nf->length = skb_frag_size(frag); 1954 } 1955 1956 return 0; 1957 1958 unwind: 1959 while (--i >= 0) { 1960 nf = &pbuf->frag_array[i+1]; 1961 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE); 1962 } 1963 1964 nf = &pbuf->frag_array[0]; 1965 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE); 1966 1967 out_err: 1968 return -ENOMEM; 1969 } 1970 1971 static inline void 1972 netxen_clear_cmddesc(u64 *desc) 1973 { 1974 desc[0] = 0ULL; 1975 desc[2] = 0ULL; 1976 } 1977 1978 static netdev_tx_t 1979 netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) 1980 { 1981 struct netxen_adapter *adapter = netdev_priv(netdev); 1982 struct nx_host_tx_ring *tx_ring = adapter->tx_ring; 1983 struct netxen_cmd_buffer *pbuf; 1984 struct netxen_skb_frag *buffrag; 1985 struct cmd_desc_type0 *hwdesc, *first_desc; 1986 struct pci_dev *pdev; 1987 int i, k; 1988 int delta = 0; 1989 struct skb_frag_struct *frag; 1990 1991 u32 producer; 1992 int frag_count, no_of_desc; 1993 u32 num_txd = tx_ring->num_desc; 1994 1995 frag_count = skb_shinfo(skb)->nr_frags + 1; 1996 1997 /* 14 frags supported for normal packet and 1998 * 32 frags supported for TSO packet 1999 */ 2000 if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) { 2001 2002 for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) { 2003 frag = &skb_shinfo(skb)->frags[i]; 2004 delta += skb_frag_size(frag); 2005 } 2006 2007 if (!__pskb_pull_tail(skb, delta)) 2008 goto drop_packet; 2009 2010 frag_count = 1 + skb_shinfo(skb)->nr_frags; 2011 } 2012 /* 4 fragments per cmd des */ 2013 no_of_desc = (frag_count + 3) >> 2; 2014 2015 if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) { 2016 netif_stop_queue(netdev); 2017 smp_mb(); 2018 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH) 2019 netif_start_queue(netdev); 2020 else 2021 return NETDEV_TX_BUSY; 2022 } 2023 2024 producer = tx_ring->producer; 2025 pbuf = &tx_ring->cmd_buf_arr[producer]; 2026 2027 pdev = adapter->pdev; 2028 2029 if (netxen_map_tx_skb(pdev, skb, pbuf)) 2030 goto drop_packet; 2031 2032 pbuf->skb = skb; 2033 pbuf->frag_count = frag_count; 2034 2035 first_desc = hwdesc = &tx_ring->desc_head[producer]; 2036 netxen_clear_cmddesc((u64 *)hwdesc); 2037 2038 netxen_set_tx_frags_len(first_desc, frag_count, skb->len); 2039 netxen_set_tx_port(first_desc, adapter->portnum); 2040 2041 for (i = 0; i < frag_count; i++) { 2042 2043 k = i % 4; 2044 2045 if ((k == 0) && (i > 0)) { 2046 /* move to next desc.*/ 2047 producer = get_next_index(producer, num_txd); 2048 hwdesc = &tx_ring->desc_head[producer]; 2049 netxen_clear_cmddesc((u64 *)hwdesc); 2050 tx_ring->cmd_buf_arr[producer].skb = NULL; 2051 } 2052 2053 buffrag = &pbuf->frag_array[i]; 2054 2055 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length); 2056 switch (k) { 2057 case 0: 2058 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma); 2059 break; 2060 case 1: 2061 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma); 2062 break; 2063 case 2: 2064 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma); 2065 break; 2066 case 3: 2067 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma); 2068 break; 2069 } 2070 } 2071 2072 tx_ring->producer = get_next_index(producer, num_txd); 2073 2074 netxen_tso_check(netdev, tx_ring, first_desc, skb); 2075 2076 adapter->stats.txbytes += skb->len; 2077 adapter->stats.xmitcalled++; 2078 2079 netxen_nic_update_cmd_producer(adapter, tx_ring); 2080 2081 return NETDEV_TX_OK; 2082 2083 drop_packet: 2084 adapter->stats.txdropped++; 2085 dev_kfree_skb_any(skb); 2086 return NETDEV_TX_OK; 2087 } 2088 2089 static int netxen_nic_check_temp(struct netxen_adapter *adapter) 2090 { 2091 struct net_device *netdev = adapter->netdev; 2092 uint32_t temp, temp_state, temp_val; 2093 int rv = 0; 2094 2095 temp = NXRD32(adapter, CRB_TEMP_STATE); 2096 2097 temp_state = nx_get_temp_state(temp); 2098 temp_val = nx_get_temp_val(temp); 2099 2100 if (temp_state == NX_TEMP_PANIC) { 2101 printk(KERN_ALERT 2102 "%s: Device temperature %d degrees C exceeds" 2103 " maximum allowed. Hardware has been shut down.\n", 2104 netdev->name, temp_val); 2105 rv = 1; 2106 } else if (temp_state == NX_TEMP_WARN) { 2107 if (adapter->temp == NX_TEMP_NORMAL) { 2108 printk(KERN_ALERT 2109 "%s: Device temperature %d degrees C " 2110 "exceeds operating range." 2111 " Immediate action needed.\n", 2112 netdev->name, temp_val); 2113 } 2114 } else { 2115 if (adapter->temp == NX_TEMP_WARN) { 2116 printk(KERN_INFO 2117 "%s: Device temperature is now %d degrees C" 2118 " in normal range.\n", netdev->name, 2119 temp_val); 2120 } 2121 } 2122 adapter->temp = temp_state; 2123 return rv; 2124 } 2125 2126 void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup) 2127 { 2128 struct net_device *netdev = adapter->netdev; 2129 2130 if (adapter->ahw.linkup && !linkup) { 2131 printk(KERN_INFO "%s: %s NIC Link is down\n", 2132 netxen_nic_driver_name, netdev->name); 2133 adapter->ahw.linkup = 0; 2134 if (netif_running(netdev)) { 2135 netif_carrier_off(netdev); 2136 netif_stop_queue(netdev); 2137 } 2138 adapter->link_changed = !adapter->has_link_events; 2139 } else if (!adapter->ahw.linkup && linkup) { 2140 printk(KERN_INFO "%s: %s NIC Link is up\n", 2141 netxen_nic_driver_name, netdev->name); 2142 adapter->ahw.linkup = 1; 2143 if (netif_running(netdev)) { 2144 netif_carrier_on(netdev); 2145 netif_wake_queue(netdev); 2146 } 2147 adapter->link_changed = !adapter->has_link_events; 2148 } 2149 } 2150 2151 static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter) 2152 { 2153 u32 val, port, linkup; 2154 2155 port = adapter->physical_port; 2156 2157 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 2158 val = NXRD32(adapter, CRB_XG_STATE_P3); 2159 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val); 2160 linkup = (val == XG_LINK_UP_P3); 2161 } else { 2162 val = NXRD32(adapter, CRB_XG_STATE); 2163 val = (val >> port*8) & 0xff; 2164 linkup = (val == XG_LINK_UP); 2165 } 2166 2167 netxen_advert_link_change(adapter, linkup); 2168 } 2169 2170 static void netxen_tx_timeout(struct net_device *netdev) 2171 { 2172 struct netxen_adapter *adapter = netdev_priv(netdev); 2173 2174 if (test_bit(__NX_RESETTING, &adapter->state)) 2175 return; 2176 2177 dev_err(&netdev->dev, "transmit timeout, resetting.\n"); 2178 schedule_work(&adapter->tx_timeout_task); 2179 } 2180 2181 static void netxen_tx_timeout_task(struct work_struct *work) 2182 { 2183 struct netxen_adapter *adapter = 2184 container_of(work, struct netxen_adapter, tx_timeout_task); 2185 2186 if (!netif_running(adapter->netdev)) 2187 return; 2188 2189 if (test_and_set_bit(__NX_RESETTING, &adapter->state)) 2190 return; 2191 2192 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS) 2193 goto request_reset; 2194 2195 rtnl_lock(); 2196 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 2197 /* try to scrub interrupt */ 2198 netxen_napi_disable(adapter); 2199 2200 netxen_napi_enable(adapter); 2201 2202 netif_wake_queue(adapter->netdev); 2203 2204 clear_bit(__NX_RESETTING, &adapter->state); 2205 } else { 2206 clear_bit(__NX_RESETTING, &adapter->state); 2207 if (netxen_nic_reset_context(adapter)) { 2208 rtnl_unlock(); 2209 goto request_reset; 2210 } 2211 } 2212 adapter->netdev->trans_start = jiffies; 2213 rtnl_unlock(); 2214 return; 2215 2216 request_reset: 2217 adapter->need_fw_reset = 1; 2218 clear_bit(__NX_RESETTING, &adapter->state); 2219 } 2220 2221 static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *netdev, 2222 struct rtnl_link_stats64 *stats) 2223 { 2224 struct netxen_adapter *adapter = netdev_priv(netdev); 2225 2226 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts; 2227 stats->tx_packets = adapter->stats.xmitfinished; 2228 stats->rx_bytes = adapter->stats.rxbytes; 2229 stats->tx_bytes = adapter->stats.txbytes; 2230 stats->rx_dropped = adapter->stats.rxdropped; 2231 stats->tx_dropped = adapter->stats.txdropped; 2232 2233 return stats; 2234 } 2235 2236 static irqreturn_t netxen_intr(int irq, void *data) 2237 { 2238 struct nx_host_sds_ring *sds_ring = data; 2239 struct netxen_adapter *adapter = sds_ring->adapter; 2240 u32 status = 0; 2241 2242 status = readl(adapter->isr_int_vec); 2243 2244 if (!(status & adapter->int_vec_bit)) 2245 return IRQ_NONE; 2246 2247 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 2248 /* check interrupt state machine, to be sure */ 2249 status = readl(adapter->crb_int_state_reg); 2250 if (!ISR_LEGACY_INT_TRIGGERED(status)) 2251 return IRQ_NONE; 2252 2253 } else { 2254 unsigned long our_int = 0; 2255 2256 our_int = readl(adapter->crb_int_state_reg); 2257 2258 /* not our interrupt */ 2259 if (!test_and_clear_bit((7 + adapter->portnum), &our_int)) 2260 return IRQ_NONE; 2261 2262 /* claim interrupt */ 2263 writel((our_int & 0xffffffff), adapter->crb_int_state_reg); 2264 2265 /* clear interrupt */ 2266 netxen_nic_disable_int(sds_ring); 2267 } 2268 2269 writel(0xffffffff, adapter->tgt_status_reg); 2270 /* read twice to ensure write is flushed */ 2271 readl(adapter->isr_int_vec); 2272 readl(adapter->isr_int_vec); 2273 2274 napi_schedule(&sds_ring->napi); 2275 2276 return IRQ_HANDLED; 2277 } 2278 2279 static irqreturn_t netxen_msi_intr(int irq, void *data) 2280 { 2281 struct nx_host_sds_ring *sds_ring = data; 2282 struct netxen_adapter *adapter = sds_ring->adapter; 2283 2284 /* clear interrupt */ 2285 writel(0xffffffff, adapter->tgt_status_reg); 2286 2287 napi_schedule(&sds_ring->napi); 2288 return IRQ_HANDLED; 2289 } 2290 2291 static irqreturn_t netxen_msix_intr(int irq, void *data) 2292 { 2293 struct nx_host_sds_ring *sds_ring = data; 2294 2295 napi_schedule(&sds_ring->napi); 2296 return IRQ_HANDLED; 2297 } 2298 2299 static int netxen_nic_poll(struct napi_struct *napi, int budget) 2300 { 2301 struct nx_host_sds_ring *sds_ring = 2302 container_of(napi, struct nx_host_sds_ring, napi); 2303 2304 struct netxen_adapter *adapter = sds_ring->adapter; 2305 2306 int tx_complete; 2307 int work_done; 2308 2309 tx_complete = netxen_process_cmd_ring(adapter); 2310 2311 work_done = netxen_process_rcv_ring(sds_ring, budget); 2312 2313 if ((work_done < budget) && tx_complete) { 2314 napi_complete(&sds_ring->napi); 2315 if (test_bit(__NX_DEV_UP, &adapter->state)) 2316 netxen_nic_enable_int(sds_ring); 2317 } 2318 2319 return work_done; 2320 } 2321 2322 #ifdef CONFIG_NET_POLL_CONTROLLER 2323 static void netxen_nic_poll_controller(struct net_device *netdev) 2324 { 2325 int ring; 2326 struct nx_host_sds_ring *sds_ring; 2327 struct netxen_adapter *adapter = netdev_priv(netdev); 2328 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 2329 2330 disable_irq(adapter->irq); 2331 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 2332 sds_ring = &recv_ctx->sds_rings[ring]; 2333 netxen_intr(adapter->irq, sds_ring); 2334 } 2335 enable_irq(adapter->irq); 2336 } 2337 #endif 2338 2339 static int 2340 nx_incr_dev_ref_cnt(struct netxen_adapter *adapter) 2341 { 2342 int count; 2343 if (netxen_api_lock(adapter)) 2344 return -EIO; 2345 2346 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2347 2348 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count); 2349 2350 netxen_api_unlock(adapter); 2351 return count; 2352 } 2353 2354 static int 2355 nx_decr_dev_ref_cnt(struct netxen_adapter *adapter) 2356 { 2357 int count, state; 2358 if (netxen_api_lock(adapter)) 2359 return -EIO; 2360 2361 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2362 WARN_ON(count == 0); 2363 2364 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count); 2365 state = NXRD32(adapter, NX_CRB_DEV_STATE); 2366 2367 if (count == 0 && state != NX_DEV_FAILED) 2368 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD); 2369 2370 netxen_api_unlock(adapter); 2371 return count; 2372 } 2373 2374 static int 2375 nx_dev_request_aer(struct netxen_adapter *adapter) 2376 { 2377 u32 state; 2378 int ret = -EINVAL; 2379 2380 if (netxen_api_lock(adapter)) 2381 return ret; 2382 2383 state = NXRD32(adapter, NX_CRB_DEV_STATE); 2384 2385 if (state == NX_DEV_NEED_AER) 2386 ret = 0; 2387 else if (state == NX_DEV_READY) { 2388 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER); 2389 ret = 0; 2390 } 2391 2392 netxen_api_unlock(adapter); 2393 return ret; 2394 } 2395 2396 int 2397 nx_dev_request_reset(struct netxen_adapter *adapter) 2398 { 2399 u32 state; 2400 int ret = -EINVAL; 2401 2402 if (netxen_api_lock(adapter)) 2403 return ret; 2404 2405 state = NXRD32(adapter, NX_CRB_DEV_STATE); 2406 2407 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) 2408 ret = 0; 2409 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) { 2410 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET); 2411 adapter->flags |= NETXEN_FW_RESET_OWNER; 2412 ret = 0; 2413 } 2414 2415 netxen_api_unlock(adapter); 2416 2417 return ret; 2418 } 2419 2420 static int 2421 netxen_can_start_firmware(struct netxen_adapter *adapter) 2422 { 2423 int count; 2424 int can_start = 0; 2425 2426 if (netxen_api_lock(adapter)) { 2427 nx_incr_dev_ref_cnt(adapter); 2428 return -1; 2429 } 2430 2431 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2432 2433 if ((count < 0) || (count >= NX_MAX_PCI_FUNC)) 2434 count = 0; 2435 2436 if (count == 0) { 2437 can_start = 1; 2438 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING); 2439 } 2440 2441 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count); 2442 2443 netxen_api_unlock(adapter); 2444 2445 return can_start; 2446 } 2447 2448 static void 2449 netxen_schedule_work(struct netxen_adapter *adapter, 2450 work_func_t func, int delay) 2451 { 2452 INIT_DELAYED_WORK(&adapter->fw_work, func); 2453 schedule_delayed_work(&adapter->fw_work, delay); 2454 } 2455 2456 static void 2457 netxen_cancel_fw_work(struct netxen_adapter *adapter) 2458 { 2459 while (test_and_set_bit(__NX_RESETTING, &adapter->state)) 2460 msleep(10); 2461 2462 cancel_delayed_work_sync(&adapter->fw_work); 2463 } 2464 2465 static void 2466 netxen_attach_work(struct work_struct *work) 2467 { 2468 struct netxen_adapter *adapter = container_of(work, 2469 struct netxen_adapter, fw_work.work); 2470 struct net_device *netdev = adapter->netdev; 2471 int err = 0; 2472 2473 if (netif_running(netdev)) { 2474 err = netxen_nic_attach(adapter); 2475 if (err) 2476 goto done; 2477 2478 err = netxen_nic_up(adapter, netdev); 2479 if (err) { 2480 netxen_nic_detach(adapter); 2481 goto done; 2482 } 2483 2484 netxen_restore_indev_addr(netdev, NETDEV_UP); 2485 } 2486 2487 netif_device_attach(netdev); 2488 2489 done: 2490 adapter->fw_fail_cnt = 0; 2491 clear_bit(__NX_RESETTING, &adapter->state); 2492 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 2493 } 2494 2495 static void 2496 netxen_fwinit_work(struct work_struct *work) 2497 { 2498 struct netxen_adapter *adapter = container_of(work, 2499 struct netxen_adapter, fw_work.work); 2500 int dev_state; 2501 int count; 2502 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE); 2503 if (adapter->flags & NETXEN_FW_RESET_OWNER) { 2504 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2505 WARN_ON(count == 0); 2506 if (count == 1) { 2507 if (adapter->mdump.md_enabled) { 2508 rtnl_lock(); 2509 netxen_dump_fw(adapter); 2510 rtnl_unlock(); 2511 } 2512 adapter->flags &= ~NETXEN_FW_RESET_OWNER; 2513 if (netxen_api_lock(adapter)) { 2514 clear_bit(__NX_RESETTING, &adapter->state); 2515 NXWR32(adapter, NX_CRB_DEV_STATE, 2516 NX_DEV_FAILED); 2517 return; 2518 } 2519 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2520 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count); 2521 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD); 2522 dev_state = NX_DEV_COLD; 2523 netxen_api_unlock(adapter); 2524 } 2525 } 2526 2527 switch (dev_state) { 2528 case NX_DEV_COLD: 2529 case NX_DEV_READY: 2530 if (!netxen_start_firmware(adapter)) { 2531 netxen_schedule_work(adapter, netxen_attach_work, 0); 2532 return; 2533 } 2534 break; 2535 2536 case NX_DEV_NEED_RESET: 2537 case NX_DEV_INITALIZING: 2538 netxen_schedule_work(adapter, 2539 netxen_fwinit_work, 2 * FW_POLL_DELAY); 2540 return; 2541 2542 case NX_DEV_FAILED: 2543 default: 2544 nx_incr_dev_ref_cnt(adapter); 2545 break; 2546 } 2547 2548 if (netxen_api_lock(adapter)) { 2549 clear_bit(__NX_RESETTING, &adapter->state); 2550 return; 2551 } 2552 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_FAILED); 2553 netxen_api_unlock(adapter); 2554 dev_err(&adapter->pdev->dev, "%s: Device initialization Failed\n", 2555 adapter->netdev->name); 2556 2557 clear_bit(__NX_RESETTING, &adapter->state); 2558 } 2559 2560 static void 2561 netxen_detach_work(struct work_struct *work) 2562 { 2563 struct netxen_adapter *adapter = container_of(work, 2564 struct netxen_adapter, fw_work.work); 2565 struct net_device *netdev = adapter->netdev; 2566 int ref_cnt = 0, delay; 2567 u32 status; 2568 2569 netif_device_detach(netdev); 2570 2571 netxen_nic_down(adapter, netdev); 2572 2573 rtnl_lock(); 2574 netxen_nic_detach(adapter); 2575 rtnl_unlock(); 2576 2577 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1); 2578 2579 if (status & NX_RCODE_FATAL_ERROR) 2580 goto err_ret; 2581 2582 if (adapter->temp == NX_TEMP_PANIC) 2583 goto err_ret; 2584 2585 if (!(adapter->flags & NETXEN_FW_RESET_OWNER)) 2586 ref_cnt = nx_decr_dev_ref_cnt(adapter); 2587 2588 if (ref_cnt == -EIO) 2589 goto err_ret; 2590 2591 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY); 2592 2593 adapter->fw_wait_cnt = 0; 2594 netxen_schedule_work(adapter, netxen_fwinit_work, delay); 2595 2596 return; 2597 2598 err_ret: 2599 clear_bit(__NX_RESETTING, &adapter->state); 2600 } 2601 2602 static int 2603 netxen_check_health(struct netxen_adapter *adapter) 2604 { 2605 u32 state, heartbit; 2606 u32 peg_status; 2607 struct net_device *netdev = adapter->netdev; 2608 2609 state = NXRD32(adapter, NX_CRB_DEV_STATE); 2610 if (state == NX_DEV_NEED_AER) 2611 return 0; 2612 2613 if (netxen_nic_check_temp(adapter)) 2614 goto detach; 2615 2616 if (adapter->need_fw_reset) { 2617 if (nx_dev_request_reset(adapter)) 2618 return 0; 2619 goto detach; 2620 } 2621 2622 /* NX_DEV_NEED_RESET, this state can be marked in two cases 2623 * 1. Tx timeout 2. Fw hang 2624 * Send request to destroy context in case of tx timeout only 2625 * and doesn't required in case of Fw hang 2626 */ 2627 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) { 2628 adapter->need_fw_reset = 1; 2629 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 2630 goto detach; 2631 } 2632 2633 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 2634 return 0; 2635 2636 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER); 2637 if (heartbit != adapter->heartbit) { 2638 adapter->heartbit = heartbit; 2639 adapter->fw_fail_cnt = 0; 2640 if (adapter->need_fw_reset) 2641 goto detach; 2642 return 0; 2643 } 2644 2645 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH) 2646 return 0; 2647 2648 if (nx_dev_request_reset(adapter)) 2649 return 0; 2650 2651 clear_bit(__NX_FW_ATTACHED, &adapter->state); 2652 2653 dev_err(&netdev->dev, "firmware hang detected\n"); 2654 peg_status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1); 2655 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n" 2656 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n" 2657 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n" 2658 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n" 2659 "PEG_NET_4_PC: 0x%x\n", 2660 peg_status, 2661 NXRD32(adapter, NETXEN_PEG_HALT_STATUS2), 2662 NXRD32(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c), 2663 NXRD32(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c), 2664 NXRD32(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c), 2665 NXRD32(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c), 2666 NXRD32(adapter, NETXEN_CRB_PEG_NET_4 + 0x3c)); 2667 if (NX_FWERROR_PEGSTAT1(peg_status) == 0x67) 2668 dev_err(&adapter->pdev->dev, 2669 "Firmware aborted with error code 0x00006700. " 2670 "Device is being reset.\n"); 2671 detach: 2672 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) && 2673 !test_and_set_bit(__NX_RESETTING, &adapter->state)) 2674 netxen_schedule_work(adapter, netxen_detach_work, 0); 2675 return 1; 2676 } 2677 2678 static void 2679 netxen_fw_poll_work(struct work_struct *work) 2680 { 2681 struct netxen_adapter *adapter = container_of(work, 2682 struct netxen_adapter, fw_work.work); 2683 2684 if (test_bit(__NX_RESETTING, &adapter->state)) 2685 goto reschedule; 2686 2687 if (test_bit(__NX_DEV_UP, &adapter->state)) { 2688 if (!adapter->has_link_events) { 2689 2690 netxen_nic_handle_phy_intr(adapter); 2691 2692 if (adapter->link_changed) 2693 netxen_nic_set_link_parameters(adapter); 2694 } 2695 } 2696 2697 if (netxen_check_health(adapter)) 2698 return; 2699 2700 reschedule: 2701 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 2702 } 2703 2704 static ssize_t 2705 netxen_store_bridged_mode(struct device *dev, 2706 struct device_attribute *attr, const char *buf, size_t len) 2707 { 2708 struct net_device *net = to_net_dev(dev); 2709 struct netxen_adapter *adapter = netdev_priv(net); 2710 unsigned long new; 2711 int ret = -EINVAL; 2712 2713 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG)) 2714 goto err_out; 2715 2716 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 2717 goto err_out; 2718 2719 if (strict_strtoul(buf, 2, &new)) 2720 goto err_out; 2721 2722 if (!netxen_config_bridged_mode(adapter, !!new)) 2723 ret = len; 2724 2725 err_out: 2726 return ret; 2727 } 2728 2729 static ssize_t 2730 netxen_show_bridged_mode(struct device *dev, 2731 struct device_attribute *attr, char *buf) 2732 { 2733 struct net_device *net = to_net_dev(dev); 2734 struct netxen_adapter *adapter; 2735 int bridged_mode = 0; 2736 2737 adapter = netdev_priv(net); 2738 2739 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) 2740 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED); 2741 2742 return sprintf(buf, "%d\n", bridged_mode); 2743 } 2744 2745 static struct device_attribute dev_attr_bridged_mode = { 2746 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)}, 2747 .show = netxen_show_bridged_mode, 2748 .store = netxen_store_bridged_mode, 2749 }; 2750 2751 static ssize_t 2752 netxen_store_diag_mode(struct device *dev, 2753 struct device_attribute *attr, const char *buf, size_t len) 2754 { 2755 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2756 unsigned long new; 2757 2758 if (strict_strtoul(buf, 2, &new)) 2759 return -EINVAL; 2760 2761 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) 2762 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED; 2763 2764 return len; 2765 } 2766 2767 static ssize_t 2768 netxen_show_diag_mode(struct device *dev, 2769 struct device_attribute *attr, char *buf) 2770 { 2771 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2772 2773 return sprintf(buf, "%d\n", 2774 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)); 2775 } 2776 2777 static struct device_attribute dev_attr_diag_mode = { 2778 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)}, 2779 .show = netxen_show_diag_mode, 2780 .store = netxen_store_diag_mode, 2781 }; 2782 2783 static int 2784 netxen_sysfs_validate_crb(struct netxen_adapter *adapter, 2785 loff_t offset, size_t size) 2786 { 2787 size_t crb_size = 4; 2788 2789 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) 2790 return -EIO; 2791 2792 if (offset < NETXEN_PCI_CRBSPACE) { 2793 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 2794 return -EINVAL; 2795 2796 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, 2797 NETXEN_PCI_CAMQM_2M_END)) 2798 crb_size = 8; 2799 else 2800 return -EINVAL; 2801 } 2802 2803 if ((size != crb_size) || (offset & (crb_size-1))) 2804 return -EINVAL; 2805 2806 return 0; 2807 } 2808 2809 static ssize_t 2810 netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj, 2811 struct bin_attribute *attr, 2812 char *buf, loff_t offset, size_t size) 2813 { 2814 struct device *dev = container_of(kobj, struct device, kobj); 2815 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2816 u32 data; 2817 u64 qmdata; 2818 int ret; 2819 2820 ret = netxen_sysfs_validate_crb(adapter, offset, size); 2821 if (ret != 0) 2822 return ret; 2823 2824 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && 2825 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, 2826 NETXEN_PCI_CAMQM_2M_END)) { 2827 netxen_pci_camqm_read_2M(adapter, offset, &qmdata); 2828 memcpy(buf, &qmdata, size); 2829 } else { 2830 data = NXRD32(adapter, offset); 2831 memcpy(buf, &data, size); 2832 } 2833 2834 return size; 2835 } 2836 2837 static ssize_t 2838 netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj, 2839 struct bin_attribute *attr, 2840 char *buf, loff_t offset, size_t size) 2841 { 2842 struct device *dev = container_of(kobj, struct device, kobj); 2843 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2844 u32 data; 2845 u64 qmdata; 2846 int ret; 2847 2848 ret = netxen_sysfs_validate_crb(adapter, offset, size); 2849 if (ret != 0) 2850 return ret; 2851 2852 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && 2853 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, 2854 NETXEN_PCI_CAMQM_2M_END)) { 2855 memcpy(&qmdata, buf, size); 2856 netxen_pci_camqm_write_2M(adapter, offset, qmdata); 2857 } else { 2858 memcpy(&data, buf, size); 2859 NXWR32(adapter, offset, data); 2860 } 2861 2862 return size; 2863 } 2864 2865 static int 2866 netxen_sysfs_validate_mem(struct netxen_adapter *adapter, 2867 loff_t offset, size_t size) 2868 { 2869 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) 2870 return -EIO; 2871 2872 if ((size != 8) || (offset & 0x7)) 2873 return -EIO; 2874 2875 return 0; 2876 } 2877 2878 static ssize_t 2879 netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj, 2880 struct bin_attribute *attr, 2881 char *buf, loff_t offset, size_t size) 2882 { 2883 struct device *dev = container_of(kobj, struct device, kobj); 2884 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2885 u64 data; 2886 int ret; 2887 2888 ret = netxen_sysfs_validate_mem(adapter, offset, size); 2889 if (ret != 0) 2890 return ret; 2891 2892 if (adapter->pci_mem_read(adapter, offset, &data)) 2893 return -EIO; 2894 2895 memcpy(buf, &data, size); 2896 2897 return size; 2898 } 2899 2900 static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj, 2901 struct bin_attribute *attr, char *buf, 2902 loff_t offset, size_t size) 2903 { 2904 struct device *dev = container_of(kobj, struct device, kobj); 2905 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2906 u64 data; 2907 int ret; 2908 2909 ret = netxen_sysfs_validate_mem(adapter, offset, size); 2910 if (ret != 0) 2911 return ret; 2912 2913 memcpy(&data, buf, size); 2914 2915 if (adapter->pci_mem_write(adapter, offset, data)) 2916 return -EIO; 2917 2918 return size; 2919 } 2920 2921 2922 static struct bin_attribute bin_attr_crb = { 2923 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)}, 2924 .size = 0, 2925 .read = netxen_sysfs_read_crb, 2926 .write = netxen_sysfs_write_crb, 2927 }; 2928 2929 static struct bin_attribute bin_attr_mem = { 2930 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)}, 2931 .size = 0, 2932 .read = netxen_sysfs_read_mem, 2933 .write = netxen_sysfs_write_mem, 2934 }; 2935 2936 static ssize_t 2937 netxen_sysfs_read_dimm(struct file *filp, struct kobject *kobj, 2938 struct bin_attribute *attr, 2939 char *buf, loff_t offset, size_t size) 2940 { 2941 struct device *dev = container_of(kobj, struct device, kobj); 2942 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2943 struct net_device *netdev = adapter->netdev; 2944 struct netxen_dimm_cfg dimm; 2945 u8 dw, rows, cols, banks, ranks; 2946 u32 val; 2947 2948 if (size != sizeof(struct netxen_dimm_cfg)) { 2949 netdev_err(netdev, "Invalid size\n"); 2950 return -1; 2951 } 2952 2953 memset(&dimm, 0, sizeof(struct netxen_dimm_cfg)); 2954 val = NXRD32(adapter, NETXEN_DIMM_CAPABILITY); 2955 2956 /* Checks if DIMM info is valid. */ 2957 if (val & NETXEN_DIMM_VALID_FLAG) { 2958 netdev_err(netdev, "Invalid DIMM flag\n"); 2959 dimm.presence = 0xff; 2960 goto out; 2961 } 2962 2963 rows = NETXEN_DIMM_NUMROWS(val); 2964 cols = NETXEN_DIMM_NUMCOLS(val); 2965 ranks = NETXEN_DIMM_NUMRANKS(val); 2966 banks = NETXEN_DIMM_NUMBANKS(val); 2967 dw = NETXEN_DIMM_DATAWIDTH(val); 2968 2969 dimm.presence = (val & NETXEN_DIMM_PRESENT); 2970 2971 /* Checks if DIMM info is present. */ 2972 if (!dimm.presence) { 2973 netdev_err(netdev, "DIMM not present\n"); 2974 goto out; 2975 } 2976 2977 dimm.dimm_type = NETXEN_DIMM_TYPE(val); 2978 2979 switch (dimm.dimm_type) { 2980 case NETXEN_DIMM_TYPE_RDIMM: 2981 case NETXEN_DIMM_TYPE_UDIMM: 2982 case NETXEN_DIMM_TYPE_SO_DIMM: 2983 case NETXEN_DIMM_TYPE_Micro_DIMM: 2984 case NETXEN_DIMM_TYPE_Mini_RDIMM: 2985 case NETXEN_DIMM_TYPE_Mini_UDIMM: 2986 break; 2987 default: 2988 netdev_err(netdev, "Invalid DIMM type %x\n", dimm.dimm_type); 2989 goto out; 2990 } 2991 2992 if (val & NETXEN_DIMM_MEMTYPE_DDR2_SDRAM) 2993 dimm.mem_type = NETXEN_DIMM_MEM_DDR2_SDRAM; 2994 else 2995 dimm.mem_type = NETXEN_DIMM_MEMTYPE(val); 2996 2997 if (val & NETXEN_DIMM_SIZE) { 2998 dimm.size = NETXEN_DIMM_STD_MEM_SIZE; 2999 goto out; 3000 } 3001 3002 if (!rows) { 3003 netdev_err(netdev, "Invalid no of rows %x\n", rows); 3004 goto out; 3005 } 3006 3007 if (!cols) { 3008 netdev_err(netdev, "Invalid no of columns %x\n", cols); 3009 goto out; 3010 } 3011 3012 if (!banks) { 3013 netdev_err(netdev, "Invalid no of banks %x\n", banks); 3014 goto out; 3015 } 3016 3017 ranks += 1; 3018 3019 switch (dw) { 3020 case 0x0: 3021 dw = 32; 3022 break; 3023 case 0x1: 3024 dw = 33; 3025 break; 3026 case 0x2: 3027 dw = 36; 3028 break; 3029 case 0x3: 3030 dw = 64; 3031 break; 3032 case 0x4: 3033 dw = 72; 3034 break; 3035 case 0x5: 3036 dw = 80; 3037 break; 3038 case 0x6: 3039 dw = 128; 3040 break; 3041 case 0x7: 3042 dw = 144; 3043 break; 3044 default: 3045 netdev_err(netdev, "Invalid data-width %x\n", dw); 3046 goto out; 3047 } 3048 3049 dimm.size = ((1 << rows) * (1 << cols) * dw * banks * ranks) / 8; 3050 /* Size returned in MB. */ 3051 dimm.size = (dimm.size) / 0x100000; 3052 out: 3053 memcpy(buf, &dimm, sizeof(struct netxen_dimm_cfg)); 3054 return sizeof(struct netxen_dimm_cfg); 3055 3056 } 3057 3058 static struct bin_attribute bin_attr_dimm = { 3059 .attr = { .name = "dimm", .mode = (S_IRUGO | S_IWUSR) }, 3060 .size = 0, 3061 .read = netxen_sysfs_read_dimm, 3062 }; 3063 3064 3065 static void 3066 netxen_create_sysfs_entries(struct netxen_adapter *adapter) 3067 { 3068 struct device *dev = &adapter->pdev->dev; 3069 3070 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) { 3071 /* bridged_mode control */ 3072 if (device_create_file(dev, &dev_attr_bridged_mode)) { 3073 dev_warn(dev, 3074 "failed to create bridged_mode sysfs entry\n"); 3075 } 3076 } 3077 } 3078 3079 static void 3080 netxen_remove_sysfs_entries(struct netxen_adapter *adapter) 3081 { 3082 struct device *dev = &adapter->pdev->dev; 3083 3084 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) 3085 device_remove_file(dev, &dev_attr_bridged_mode); 3086 } 3087 3088 static void 3089 netxen_create_diag_entries(struct netxen_adapter *adapter) 3090 { 3091 struct pci_dev *pdev = adapter->pdev; 3092 struct device *dev; 3093 3094 dev = &pdev->dev; 3095 if (device_create_file(dev, &dev_attr_diag_mode)) 3096 dev_info(dev, "failed to create diag_mode sysfs entry\n"); 3097 if (device_create_bin_file(dev, &bin_attr_crb)) 3098 dev_info(dev, "failed to create crb sysfs entry\n"); 3099 if (device_create_bin_file(dev, &bin_attr_mem)) 3100 dev_info(dev, "failed to create mem sysfs entry\n"); 3101 if (device_create_bin_file(dev, &bin_attr_dimm)) 3102 dev_info(dev, "failed to create dimm sysfs entry\n"); 3103 } 3104 3105 3106 static void 3107 netxen_remove_diag_entries(struct netxen_adapter *adapter) 3108 { 3109 struct pci_dev *pdev = adapter->pdev; 3110 struct device *dev = &pdev->dev; 3111 3112 device_remove_file(dev, &dev_attr_diag_mode); 3113 device_remove_bin_file(dev, &bin_attr_crb); 3114 device_remove_bin_file(dev, &bin_attr_mem); 3115 device_remove_bin_file(dev, &bin_attr_dimm); 3116 } 3117 3118 #ifdef CONFIG_INET 3119 3120 #define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops) 3121 3122 static int 3123 netxen_destip_supported(struct netxen_adapter *adapter) 3124 { 3125 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 3126 return 0; 3127 3128 if (adapter->ahw.cut_through) 3129 return 0; 3130 3131 return 1; 3132 } 3133 3134 static void 3135 netxen_free_vlan_ip_list(struct netxen_adapter *adapter) 3136 { 3137 struct nx_vlan_ip_list *cur; 3138 struct list_head *head = &adapter->vlan_ip_list; 3139 3140 while (!list_empty(head)) { 3141 cur = list_entry(head->next, struct nx_vlan_ip_list, list); 3142 netxen_config_ipaddr(adapter, cur->ip_addr, NX_IP_DOWN); 3143 list_del(&cur->list); 3144 kfree(cur); 3145 } 3146 3147 } 3148 static void 3149 netxen_list_config_vlan_ip(struct netxen_adapter *adapter, 3150 struct in_ifaddr *ifa, unsigned long event) 3151 { 3152 struct net_device *dev; 3153 struct nx_vlan_ip_list *cur, *tmp_cur; 3154 struct list_head *head; 3155 3156 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL; 3157 3158 if (dev == NULL) 3159 return; 3160 3161 if (!is_vlan_dev(dev)) 3162 return; 3163 3164 switch (event) { 3165 case NX_IP_UP: 3166 list_for_each(head, &adapter->vlan_ip_list) { 3167 cur = list_entry(head, struct nx_vlan_ip_list, list); 3168 3169 if (cur->ip_addr == ifa->ifa_address) 3170 return; 3171 } 3172 3173 cur = kzalloc(sizeof(struct nx_vlan_ip_list), GFP_ATOMIC); 3174 if (cur == NULL) { 3175 printk(KERN_ERR "%s: failed to add vlan ip to list\n", 3176 adapter->netdev->name); 3177 return; 3178 } 3179 3180 cur->ip_addr = ifa->ifa_address; 3181 list_add_tail(&cur->list, &adapter->vlan_ip_list); 3182 break; 3183 case NX_IP_DOWN: 3184 list_for_each_entry_safe(cur, tmp_cur, 3185 &adapter->vlan_ip_list, list) { 3186 if (cur->ip_addr == ifa->ifa_address) { 3187 list_del(&cur->list); 3188 kfree(cur); 3189 break; 3190 } 3191 } 3192 } 3193 } 3194 static void 3195 netxen_config_indev_addr(struct netxen_adapter *adapter, 3196 struct net_device *dev, unsigned long event) 3197 { 3198 struct in_device *indev; 3199 3200 if (!netxen_destip_supported(adapter)) 3201 return; 3202 3203 indev = in_dev_get(dev); 3204 if (!indev) 3205 return; 3206 3207 for_ifa(indev) { 3208 switch (event) { 3209 case NETDEV_UP: 3210 netxen_config_ipaddr(adapter, 3211 ifa->ifa_address, NX_IP_UP); 3212 netxen_list_config_vlan_ip(adapter, ifa, NX_IP_UP); 3213 break; 3214 case NETDEV_DOWN: 3215 netxen_config_ipaddr(adapter, 3216 ifa->ifa_address, NX_IP_DOWN); 3217 netxen_list_config_vlan_ip(adapter, ifa, NX_IP_DOWN); 3218 break; 3219 default: 3220 break; 3221 } 3222 } endfor_ifa(indev); 3223 3224 in_dev_put(indev); 3225 } 3226 3227 static void 3228 netxen_restore_indev_addr(struct net_device *netdev, unsigned long event) 3229 3230 { 3231 struct netxen_adapter *adapter = netdev_priv(netdev); 3232 struct nx_vlan_ip_list *pos, *tmp_pos; 3233 unsigned long ip_event; 3234 3235 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN; 3236 netxen_config_indev_addr(adapter, netdev, event); 3237 3238 list_for_each_entry_safe(pos, tmp_pos, &adapter->vlan_ip_list, list) { 3239 netxen_config_ipaddr(adapter, pos->ip_addr, ip_event); 3240 } 3241 } 3242 3243 static int netxen_netdev_event(struct notifier_block *this, 3244 unsigned long event, void *ptr) 3245 { 3246 struct netxen_adapter *adapter; 3247 struct net_device *dev = (struct net_device *)ptr; 3248 struct net_device *orig_dev = dev; 3249 3250 recheck: 3251 if (dev == NULL) 3252 goto done; 3253 3254 if (dev->priv_flags & IFF_802_1Q_VLAN) { 3255 dev = vlan_dev_real_dev(dev); 3256 goto recheck; 3257 } 3258 3259 if (!is_netxen_netdev(dev)) 3260 goto done; 3261 3262 adapter = netdev_priv(dev); 3263 3264 if (!adapter) 3265 goto done; 3266 3267 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 3268 goto done; 3269 3270 netxen_config_indev_addr(adapter, orig_dev, event); 3271 done: 3272 return NOTIFY_DONE; 3273 } 3274 3275 static int 3276 netxen_inetaddr_event(struct notifier_block *this, 3277 unsigned long event, void *ptr) 3278 { 3279 struct netxen_adapter *adapter; 3280 struct net_device *dev; 3281 3282 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr; 3283 3284 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL; 3285 3286 recheck: 3287 if (dev == NULL) 3288 goto done; 3289 3290 if (dev->priv_flags & IFF_802_1Q_VLAN) { 3291 dev = vlan_dev_real_dev(dev); 3292 goto recheck; 3293 } 3294 3295 if (!is_netxen_netdev(dev)) 3296 goto done; 3297 3298 adapter = netdev_priv(dev); 3299 3300 if (!adapter || !netxen_destip_supported(adapter)) 3301 goto done; 3302 3303 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 3304 goto done; 3305 3306 switch (event) { 3307 case NETDEV_UP: 3308 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP); 3309 netxen_list_config_vlan_ip(adapter, ifa, NX_IP_UP); 3310 break; 3311 case NETDEV_DOWN: 3312 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN); 3313 netxen_list_config_vlan_ip(adapter, ifa, NX_IP_DOWN); 3314 break; 3315 default: 3316 break; 3317 } 3318 3319 done: 3320 return NOTIFY_DONE; 3321 } 3322 3323 static struct notifier_block netxen_netdev_cb = { 3324 .notifier_call = netxen_netdev_event, 3325 }; 3326 3327 static struct notifier_block netxen_inetaddr_cb = { 3328 .notifier_call = netxen_inetaddr_event, 3329 }; 3330 #else 3331 static void 3332 netxen_restore_indev_addr(struct net_device *dev, unsigned long event) 3333 { } 3334 static void 3335 netxen_free_vlan_ip_list(struct netxen_adapter *adapter) 3336 { } 3337 #endif 3338 3339 static struct pci_error_handlers netxen_err_handler = { 3340 .error_detected = netxen_io_error_detected, 3341 .slot_reset = netxen_io_slot_reset, 3342 .resume = netxen_io_resume, 3343 }; 3344 3345 static struct pci_driver netxen_driver = { 3346 .name = netxen_nic_driver_name, 3347 .id_table = netxen_pci_tbl, 3348 .probe = netxen_nic_probe, 3349 .remove = __devexit_p(netxen_nic_remove), 3350 #ifdef CONFIG_PM 3351 .suspend = netxen_nic_suspend, 3352 .resume = netxen_nic_resume, 3353 #endif 3354 .shutdown = netxen_nic_shutdown, 3355 .err_handler = &netxen_err_handler 3356 }; 3357 3358 static int __init netxen_init_module(void) 3359 { 3360 printk(KERN_INFO "%s\n", netxen_nic_driver_string); 3361 3362 #ifdef CONFIG_INET 3363 register_netdevice_notifier(&netxen_netdev_cb); 3364 register_inetaddr_notifier(&netxen_inetaddr_cb); 3365 #endif 3366 return pci_register_driver(&netxen_driver); 3367 } 3368 3369 module_init(netxen_init_module); 3370 3371 static void __exit netxen_exit_module(void) 3372 { 3373 pci_unregister_driver(&netxen_driver); 3374 3375 #ifdef CONFIG_INET 3376 unregister_inetaddr_notifier(&netxen_inetaddr_cb); 3377 unregister_netdevice_notifier(&netxen_netdev_cb); 3378 #endif 3379 } 3380 3381 module_exit(netxen_exit_module); 3382