netxen_nic_main.c revision e4d1aa40e363ed3e0486aeeeb0d173f7f822737e
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 41MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Intelligent Ethernet Driver"); 42MODULE_LICENSE("GPL"); 43MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID); 44MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME); 45 46char netxen_nic_driver_name[] = "netxen_nic"; 47static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v" 48 NETXEN_NIC_LINUX_VERSIONID; 49 50static int port_mode = NETXEN_PORT_MODE_AUTO_NEG; 51 52/* Default to restricted 1G auto-neg mode */ 53static int wol_port_mode = 5; 54 55static int use_msi = 1; 56 57static int use_msi_x = 1; 58 59static int auto_fw_reset = AUTO_FW_RESET_ENABLED; 60module_param(auto_fw_reset, int, 0644); 61MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled"); 62 63static int __devinit netxen_nic_probe(struct pci_dev *pdev, 64 const struct pci_device_id *ent); 65static void __devexit netxen_nic_remove(struct pci_dev *pdev); 66static int netxen_nic_open(struct net_device *netdev); 67static int netxen_nic_close(struct net_device *netdev); 68static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *, 69 struct net_device *); 70static void netxen_tx_timeout(struct net_device *netdev); 71static void netxen_tx_timeout_task(struct work_struct *work); 72static void netxen_fw_poll_work(struct work_struct *work); 73static void netxen_schedule_work(struct netxen_adapter *adapter, 74 work_func_t func, int delay); 75static void netxen_cancel_fw_work(struct netxen_adapter *adapter); 76static int netxen_nic_poll(struct napi_struct *napi, int budget); 77#ifdef CONFIG_NET_POLL_CONTROLLER 78static void netxen_nic_poll_controller(struct net_device *netdev); 79#endif 80 81static void netxen_create_sysfs_entries(struct netxen_adapter *adapter); 82static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter); 83static void netxen_create_diag_entries(struct netxen_adapter *adapter); 84static void netxen_remove_diag_entries(struct netxen_adapter *adapter); 85static int nx_dev_request_aer(struct netxen_adapter *adapter); 86static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter); 87static int netxen_can_start_firmware(struct netxen_adapter *adapter); 88 89static irqreturn_t netxen_intr(int irq, void *data); 90static irqreturn_t netxen_msi_intr(int irq, void *data); 91static irqreturn_t netxen_msix_intr(int irq, void *data); 92 93static void netxen_free_vlan_ip_list(struct netxen_adapter *); 94static void netxen_restore_indev_addr(struct net_device *dev, unsigned long); 95static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *dev, 96 struct rtnl_link_stats64 *stats); 97static 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 104static 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 116MODULE_DEVICE_TABLE(pci, netxen_pci_tbl); 117 118static 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 123void 124netxen_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 130static 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 135static inline void 136netxen_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 142static 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 149static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG; 150 151static 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 158static 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 168static int 169netxen_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 178static void 179netxen_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 187static int 188netxen_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 206static void 207netxen_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 221static void 222netxen_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 235static void 236netxen_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 250static 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 */ 279static int 280nx_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 318err_out: 319 pci_set_dma_mask(pdev, old_mask); 320 pci_set_consistent_dma_mask(pdev, old_cmask); 321 return err; 322} 323 324static int 325netxen_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 368static 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 404static 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 459static 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 475static 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 483static int 484netxen_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 515static 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 539static 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 546static 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 558static 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 579static 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 596static void 597netxen_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 670static void 671netxen_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 679static void 680netxen_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 692static int 693netxen_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 791skip_doorbell: 792 adapter->ahw.db_base = db_ptr; 793 adapter->ahw.db_len = db_len; 794 return 0; 795 796err_out: 797 netxen_cleanup_pci_map(adapter); 798 return err; 799} 800 801static void 802netxen_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 913static int 914netxen_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 989pcie_strap_init: 990 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 991 netxen_pcie_strap_init(adapter); 992 993wait_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 1011err_out: 1012 netxen_release_firmware(adapter); 1013 return err; 1014} 1015 1016static int 1017netxen_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 1049static void 1050netxen_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 1063static void 1064netxen_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 */ 1078static 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 1122static inline int 1123netxen_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 */ 1136static 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 1169static inline void 1170netxen_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 1179static int 1180netxen_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 1255err_out_free_rxbuf: 1256 netxen_release_rx_buffers(adapter); 1257 netxen_free_hw_resources(adapter); 1258err_out_free_sw: 1259 netxen_free_sw_resources(adapter); 1260 return err; 1261} 1262 1263static void 1264netxen_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 1280int 1281netxen_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 1310done: 1311 clear_bit(__NX_RESETTING, &adapter->state); 1312 return err; 1313} 1314 1315static int 1316netxen_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 1375static 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 /* root bus? */ 1382 if (!root) 1383 return; 1384 1385 if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM && 1386 adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP) 1387 return; 1388 1389 if (root->pcie_type != PCI_EXP_TYPE_ROOT_PORT) 1390 return; 1391 1392 aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR); 1393 if (!aer_pos) 1394 return; 1395 1396 pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff); 1397} 1398#endif 1399 1400static int __devinit 1401netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 1402{ 1403 struct net_device *netdev = NULL; 1404 struct netxen_adapter *adapter = NULL; 1405 int i = 0, err; 1406 int pci_func_id = PCI_FUNC(pdev->devfn); 1407 uint8_t revision_id; 1408 u32 val; 1409 1410 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) { 1411 pr_warning("%s: chip revisions between 0x%x-0x%x " 1412 "will not be enabled.\n", 1413 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1); 1414 return -ENODEV; 1415 } 1416 1417 if ((err = pci_enable_device(pdev))) 1418 return err; 1419 1420 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { 1421 err = -ENODEV; 1422 goto err_out_disable_pdev; 1423 } 1424 1425 if ((err = pci_request_regions(pdev, netxen_nic_driver_name))) 1426 goto err_out_disable_pdev; 1427 1428 if (NX_IS_REVISION_P3(pdev->revision)) 1429 pci_enable_pcie_error_reporting(pdev); 1430 1431 pci_set_master(pdev); 1432 1433 netdev = alloc_etherdev(sizeof(struct netxen_adapter)); 1434 if(!netdev) { 1435 err = -ENOMEM; 1436 goto err_out_free_res; 1437 } 1438 1439 SET_NETDEV_DEV(netdev, &pdev->dev); 1440 1441 adapter = netdev_priv(netdev); 1442 adapter->netdev = netdev; 1443 adapter->pdev = pdev; 1444 adapter->ahw.pci_func = pci_func_id; 1445 1446 revision_id = pdev->revision; 1447 adapter->ahw.revision_id = revision_id; 1448 1449 rwlock_init(&adapter->ahw.crb_lock); 1450 spin_lock_init(&adapter->ahw.mem_lock); 1451 1452 spin_lock_init(&adapter->tx_clean_lock); 1453 INIT_LIST_HEAD(&adapter->mac_list); 1454 INIT_LIST_HEAD(&adapter->vlan_ip_list); 1455 1456 err = netxen_setup_pci_map(adapter); 1457 if (err) 1458 goto err_out_free_netdev; 1459 1460 /* This will be reset for mezz cards */ 1461 adapter->portnum = pci_func_id; 1462 1463 err = netxen_nic_get_board_info(adapter); 1464 if (err) { 1465 dev_err(&pdev->dev, "Error getting board config info.\n"); 1466 goto err_out_iounmap; 1467 } 1468 1469#ifdef CONFIG_PCIEAER 1470 netxen_mask_aer_correctable(adapter); 1471#endif 1472 1473 /* Mezz cards have PCI function 0,2,3 enabled */ 1474 switch (adapter->ahw.board_type) { 1475 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ: 1476 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ: 1477 if (pci_func_id >= 2) 1478 adapter->portnum = pci_func_id - 2; 1479 break; 1480 default: 1481 break; 1482 } 1483 1484 err = netxen_check_flash_fw_compatibility(adapter); 1485 if (err) 1486 goto err_out_iounmap; 1487 1488 if (adapter->portnum == 0) { 1489 val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 1490 if (val != 0xffffffff && val != 0) { 1491 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0); 1492 adapter->need_fw_reset = 1; 1493 } 1494 } 1495 1496 err = netxen_start_firmware(adapter); 1497 if (err) 1498 goto err_out_decr_ref; 1499 1500 /* 1501 * See if the firmware gave us a virtual-physical port mapping. 1502 */ 1503 adapter->physical_port = adapter->portnum; 1504 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 1505 i = NXRD32(adapter, CRB_V2P(adapter->portnum)); 1506 if (i != 0x55555555) 1507 adapter->physical_port = i; 1508 } 1509 1510 netxen_nic_clear_stats(adapter); 1511 1512 netxen_setup_intr(adapter); 1513 1514 err = netxen_setup_netdev(adapter, netdev); 1515 if (err) 1516 goto err_out_disable_msi; 1517 1518 pci_set_drvdata(pdev, adapter); 1519 1520 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 1521 1522 switch (adapter->ahw.port_type) { 1523 case NETXEN_NIC_GBE: 1524 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n", 1525 adapter->netdev->name); 1526 break; 1527 case NETXEN_NIC_XGBE: 1528 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n", 1529 adapter->netdev->name); 1530 break; 1531 } 1532 1533 netxen_create_diag_entries(adapter); 1534 1535 return 0; 1536 1537err_out_disable_msi: 1538 netxen_teardown_intr(adapter); 1539 1540 netxen_free_dummy_dma(adapter); 1541 1542err_out_decr_ref: 1543 nx_decr_dev_ref_cnt(adapter); 1544 1545err_out_iounmap: 1546 netxen_cleanup_pci_map(adapter); 1547 1548err_out_free_netdev: 1549 free_netdev(netdev); 1550 1551err_out_free_res: 1552 pci_release_regions(pdev); 1553 1554err_out_disable_pdev: 1555 pci_set_drvdata(pdev, NULL); 1556 pci_disable_device(pdev); 1557 return err; 1558} 1559 1560static 1561void netxen_cleanup_minidump(struct netxen_adapter *adapter) 1562{ 1563 kfree(adapter->mdump.md_template); 1564 adapter->mdump.md_template = NULL; 1565 1566 if (adapter->mdump.md_capture_buff) { 1567 vfree(adapter->mdump.md_capture_buff); 1568 adapter->mdump.md_capture_buff = NULL; 1569 } 1570} 1571 1572static void __devexit netxen_nic_remove(struct pci_dev *pdev) 1573{ 1574 struct netxen_adapter *adapter; 1575 struct net_device *netdev; 1576 1577 adapter = pci_get_drvdata(pdev); 1578 if (adapter == NULL) 1579 return; 1580 1581 netdev = adapter->netdev; 1582 1583 netxen_cancel_fw_work(adapter); 1584 1585 unregister_netdev(netdev); 1586 1587 cancel_work_sync(&adapter->tx_timeout_task); 1588 1589 netxen_free_vlan_ip_list(adapter); 1590 netxen_nic_detach(adapter); 1591 1592 nx_decr_dev_ref_cnt(adapter); 1593 1594 if (adapter->portnum == 0) 1595 netxen_free_dummy_dma(adapter); 1596 1597 clear_bit(__NX_RESETTING, &adapter->state); 1598 1599 netxen_teardown_intr(adapter); 1600 1601 netxen_remove_diag_entries(adapter); 1602 1603 netxen_cleanup_pci_map(adapter); 1604 1605 netxen_release_firmware(adapter); 1606 1607 if (NX_IS_REVISION_P3(pdev->revision)) { 1608 netxen_cleanup_minidump(adapter); 1609 pci_disable_pcie_error_reporting(pdev); 1610 } 1611 1612 pci_release_regions(pdev); 1613 pci_disable_device(pdev); 1614 pci_set_drvdata(pdev, NULL); 1615 1616 free_netdev(netdev); 1617} 1618 1619static void netxen_nic_detach_func(struct netxen_adapter *adapter) 1620{ 1621 struct net_device *netdev = adapter->netdev; 1622 1623 netif_device_detach(netdev); 1624 1625 netxen_cancel_fw_work(adapter); 1626 1627 if (netif_running(netdev)) 1628 netxen_nic_down(adapter, netdev); 1629 1630 cancel_work_sync(&adapter->tx_timeout_task); 1631 1632 netxen_nic_detach(adapter); 1633 1634 if (adapter->portnum == 0) 1635 netxen_free_dummy_dma(adapter); 1636 1637 nx_decr_dev_ref_cnt(adapter); 1638 1639 clear_bit(__NX_RESETTING, &adapter->state); 1640} 1641 1642static int netxen_nic_attach_func(struct pci_dev *pdev) 1643{ 1644 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1645 struct net_device *netdev = adapter->netdev; 1646 int err; 1647 1648 err = pci_enable_device(pdev); 1649 if (err) 1650 return err; 1651 1652 pci_set_power_state(pdev, PCI_D0); 1653 pci_set_master(pdev); 1654 pci_restore_state(pdev); 1655 1656 adapter->ahw.crb_win = -1; 1657 adapter->ahw.ocm_win = -1; 1658 1659 err = netxen_start_firmware(adapter); 1660 if (err) { 1661 dev_err(&pdev->dev, "failed to start firmware\n"); 1662 return err; 1663 } 1664 1665 if (netif_running(netdev)) { 1666 err = netxen_nic_attach(adapter); 1667 if (err) 1668 goto err_out; 1669 1670 err = netxen_nic_up(adapter, netdev); 1671 if (err) 1672 goto err_out_detach; 1673 1674 netxen_restore_indev_addr(netdev, NETDEV_UP); 1675 } 1676 1677 netif_device_attach(netdev); 1678 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 1679 return 0; 1680 1681err_out_detach: 1682 netxen_nic_detach(adapter); 1683err_out: 1684 nx_decr_dev_ref_cnt(adapter); 1685 return err; 1686} 1687 1688static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev, 1689 pci_channel_state_t state) 1690{ 1691 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1692 1693 if (state == pci_channel_io_perm_failure) 1694 return PCI_ERS_RESULT_DISCONNECT; 1695 1696 if (nx_dev_request_aer(adapter)) 1697 return PCI_ERS_RESULT_RECOVERED; 1698 1699 netxen_nic_detach_func(adapter); 1700 1701 pci_disable_device(pdev); 1702 1703 return PCI_ERS_RESULT_NEED_RESET; 1704} 1705 1706static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev) 1707{ 1708 int err = 0; 1709 1710 err = netxen_nic_attach_func(pdev); 1711 1712 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED; 1713} 1714 1715static void netxen_io_resume(struct pci_dev *pdev) 1716{ 1717 pci_cleanup_aer_uncorrect_error_status(pdev); 1718} 1719 1720static void netxen_nic_shutdown(struct pci_dev *pdev) 1721{ 1722 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1723 1724 netxen_nic_detach_func(adapter); 1725 1726 if (pci_save_state(pdev)) 1727 return; 1728 1729 if (netxen_nic_wol_supported(adapter)) { 1730 pci_enable_wake(pdev, PCI_D3cold, 1); 1731 pci_enable_wake(pdev, PCI_D3hot, 1); 1732 } 1733 1734 pci_disable_device(pdev); 1735} 1736 1737#ifdef CONFIG_PM 1738static int 1739netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state) 1740{ 1741 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1742 int retval; 1743 1744 netxen_nic_detach_func(adapter); 1745 1746 retval = pci_save_state(pdev); 1747 if (retval) 1748 return retval; 1749 1750 if (netxen_nic_wol_supported(adapter)) { 1751 pci_enable_wake(pdev, PCI_D3cold, 1); 1752 pci_enable_wake(pdev, PCI_D3hot, 1); 1753 } 1754 1755 pci_disable_device(pdev); 1756 pci_set_power_state(pdev, pci_choose_state(pdev, state)); 1757 1758 return 0; 1759} 1760 1761static int 1762netxen_nic_resume(struct pci_dev *pdev) 1763{ 1764 return netxen_nic_attach_func(pdev); 1765} 1766#endif 1767 1768static int netxen_nic_open(struct net_device *netdev) 1769{ 1770 struct netxen_adapter *adapter = netdev_priv(netdev); 1771 int err = 0; 1772 1773 if (adapter->driver_mismatch) 1774 return -EIO; 1775 1776 err = netxen_nic_attach(adapter); 1777 if (err) 1778 return err; 1779 1780 err = __netxen_nic_up(adapter, netdev); 1781 if (err) 1782 goto err_out; 1783 1784 netif_start_queue(netdev); 1785 1786 return 0; 1787 1788err_out: 1789 netxen_nic_detach(adapter); 1790 return err; 1791} 1792 1793/* 1794 * netxen_nic_close - Disables a network interface entry point 1795 */ 1796static int netxen_nic_close(struct net_device *netdev) 1797{ 1798 struct netxen_adapter *adapter = netdev_priv(netdev); 1799 1800 __netxen_nic_down(adapter, netdev); 1801 return 0; 1802} 1803 1804static void 1805netxen_tso_check(struct net_device *netdev, 1806 struct nx_host_tx_ring *tx_ring, 1807 struct cmd_desc_type0 *first_desc, 1808 struct sk_buff *skb) 1809{ 1810 u8 opcode = TX_ETHER_PKT; 1811 __be16 protocol = skb->protocol; 1812 u16 flags = 0, vid = 0; 1813 u32 producer; 1814 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0; 1815 struct cmd_desc_type0 *hwdesc; 1816 struct vlan_ethhdr *vh; 1817 1818 if (protocol == cpu_to_be16(ETH_P_8021Q)) { 1819 1820 vh = (struct vlan_ethhdr *)skb->data; 1821 protocol = vh->h_vlan_encapsulated_proto; 1822 flags = FLAGS_VLAN_TAGGED; 1823 1824 } else if (vlan_tx_tag_present(skb)) { 1825 flags = FLAGS_VLAN_OOB; 1826 vid = vlan_tx_tag_get(skb); 1827 netxen_set_tx_vlan_tci(first_desc, vid); 1828 vlan_oob = 1; 1829 } 1830 1831 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) && 1832 skb_shinfo(skb)->gso_size > 0) { 1833 1834 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); 1835 1836 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); 1837 first_desc->total_hdr_length = hdr_len; 1838 if (vlan_oob) { 1839 first_desc->total_hdr_length += VLAN_HLEN; 1840 first_desc->tcp_hdr_offset = VLAN_HLEN; 1841 first_desc->ip_hdr_offset = VLAN_HLEN; 1842 /* Only in case of TSO on vlan device */ 1843 flags |= FLAGS_VLAN_TAGGED; 1844 } 1845 1846 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ? 1847 TX_TCP_LSO6 : TX_TCP_LSO; 1848 tso = 1; 1849 1850 } else if (skb->ip_summed == CHECKSUM_PARTIAL) { 1851 u8 l4proto; 1852 1853 if (protocol == cpu_to_be16(ETH_P_IP)) { 1854 l4proto = ip_hdr(skb)->protocol; 1855 1856 if (l4proto == IPPROTO_TCP) 1857 opcode = TX_TCP_PKT; 1858 else if(l4proto == IPPROTO_UDP) 1859 opcode = TX_UDP_PKT; 1860 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) { 1861 l4proto = ipv6_hdr(skb)->nexthdr; 1862 1863 if (l4proto == IPPROTO_TCP) 1864 opcode = TX_TCPV6_PKT; 1865 else if(l4proto == IPPROTO_UDP) 1866 opcode = TX_UDPV6_PKT; 1867 } 1868 } 1869 1870 first_desc->tcp_hdr_offset += skb_transport_offset(skb); 1871 first_desc->ip_hdr_offset += skb_network_offset(skb); 1872 netxen_set_tx_flags_opcode(first_desc, flags, opcode); 1873 1874 if (!tso) 1875 return; 1876 1877 /* For LSO, we need to copy the MAC/IP/TCP headers into 1878 * the descriptor ring 1879 */ 1880 producer = tx_ring->producer; 1881 copied = 0; 1882 offset = 2; 1883 1884 if (vlan_oob) { 1885 /* Create a TSO vlan header template for firmware */ 1886 1887 hwdesc = &tx_ring->desc_head[producer]; 1888 tx_ring->cmd_buf_arr[producer].skb = NULL; 1889 1890 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset, 1891 hdr_len + VLAN_HLEN); 1892 1893 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2); 1894 skb_copy_from_linear_data(skb, vh, 12); 1895 vh->h_vlan_proto = htons(ETH_P_8021Q); 1896 vh->h_vlan_TCI = htons(vid); 1897 skb_copy_from_linear_data_offset(skb, 12, 1898 (char *)vh + 16, copy_len - 16); 1899 1900 copied = copy_len - VLAN_HLEN; 1901 offset = 0; 1902 1903 producer = get_next_index(producer, tx_ring->num_desc); 1904 } 1905 1906 while (copied < hdr_len) { 1907 1908 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset, 1909 (hdr_len - copied)); 1910 1911 hwdesc = &tx_ring->desc_head[producer]; 1912 tx_ring->cmd_buf_arr[producer].skb = NULL; 1913 1914 skb_copy_from_linear_data_offset(skb, copied, 1915 (char *)hwdesc + offset, copy_len); 1916 1917 copied += copy_len; 1918 offset = 0; 1919 1920 producer = get_next_index(producer, tx_ring->num_desc); 1921 } 1922 1923 tx_ring->producer = producer; 1924 barrier(); 1925} 1926 1927static int 1928netxen_map_tx_skb(struct pci_dev *pdev, 1929 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf) 1930{ 1931 struct netxen_skb_frag *nf; 1932 struct skb_frag_struct *frag; 1933 int i, nr_frags; 1934 dma_addr_t map; 1935 1936 nr_frags = skb_shinfo(skb)->nr_frags; 1937 nf = &pbuf->frag_array[0]; 1938 1939 map = pci_map_single(pdev, skb->data, 1940 skb_headlen(skb), PCI_DMA_TODEVICE); 1941 if (pci_dma_mapping_error(pdev, map)) 1942 goto out_err; 1943 1944 nf->dma = map; 1945 nf->length = skb_headlen(skb); 1946 1947 for (i = 0; i < nr_frags; i++) { 1948 frag = &skb_shinfo(skb)->frags[i]; 1949 nf = &pbuf->frag_array[i+1]; 1950 1951 map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag), 1952 DMA_TO_DEVICE); 1953 if (dma_mapping_error(&pdev->dev, map)) 1954 goto unwind; 1955 1956 nf->dma = map; 1957 nf->length = skb_frag_size(frag); 1958 } 1959 1960 return 0; 1961 1962unwind: 1963 while (--i >= 0) { 1964 nf = &pbuf->frag_array[i+1]; 1965 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE); 1966 } 1967 1968 nf = &pbuf->frag_array[0]; 1969 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE); 1970 1971out_err: 1972 return -ENOMEM; 1973} 1974 1975static inline void 1976netxen_clear_cmddesc(u64 *desc) 1977{ 1978 desc[0] = 0ULL; 1979 desc[2] = 0ULL; 1980} 1981 1982static netdev_tx_t 1983netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) 1984{ 1985 struct netxen_adapter *adapter = netdev_priv(netdev); 1986 struct nx_host_tx_ring *tx_ring = adapter->tx_ring; 1987 struct netxen_cmd_buffer *pbuf; 1988 struct netxen_skb_frag *buffrag; 1989 struct cmd_desc_type0 *hwdesc, *first_desc; 1990 struct pci_dev *pdev; 1991 int i, k; 1992 int delta = 0; 1993 struct skb_frag_struct *frag; 1994 1995 u32 producer; 1996 int frag_count, no_of_desc; 1997 u32 num_txd = tx_ring->num_desc; 1998 1999 frag_count = skb_shinfo(skb)->nr_frags + 1; 2000 2001 /* 14 frags supported for normal packet and 2002 * 32 frags supported for TSO packet 2003 */ 2004 if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) { 2005 2006 for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) { 2007 frag = &skb_shinfo(skb)->frags[i]; 2008 delta += skb_frag_size(frag); 2009 } 2010 2011 if (!__pskb_pull_tail(skb, delta)) 2012 goto drop_packet; 2013 2014 frag_count = 1 + skb_shinfo(skb)->nr_frags; 2015 } 2016 /* 4 fragments per cmd des */ 2017 no_of_desc = (frag_count + 3) >> 2; 2018 2019 if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) { 2020 netif_stop_queue(netdev); 2021 smp_mb(); 2022 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH) 2023 netif_start_queue(netdev); 2024 else 2025 return NETDEV_TX_BUSY; 2026 } 2027 2028 producer = tx_ring->producer; 2029 pbuf = &tx_ring->cmd_buf_arr[producer]; 2030 2031 pdev = adapter->pdev; 2032 2033 if (netxen_map_tx_skb(pdev, skb, pbuf)) 2034 goto drop_packet; 2035 2036 pbuf->skb = skb; 2037 pbuf->frag_count = frag_count; 2038 2039 first_desc = hwdesc = &tx_ring->desc_head[producer]; 2040 netxen_clear_cmddesc((u64 *)hwdesc); 2041 2042 netxen_set_tx_frags_len(first_desc, frag_count, skb->len); 2043 netxen_set_tx_port(first_desc, adapter->portnum); 2044 2045 for (i = 0; i < frag_count; i++) { 2046 2047 k = i % 4; 2048 2049 if ((k == 0) && (i > 0)) { 2050 /* move to next desc.*/ 2051 producer = get_next_index(producer, num_txd); 2052 hwdesc = &tx_ring->desc_head[producer]; 2053 netxen_clear_cmddesc((u64 *)hwdesc); 2054 tx_ring->cmd_buf_arr[producer].skb = NULL; 2055 } 2056 2057 buffrag = &pbuf->frag_array[i]; 2058 2059 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length); 2060 switch (k) { 2061 case 0: 2062 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma); 2063 break; 2064 case 1: 2065 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma); 2066 break; 2067 case 2: 2068 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma); 2069 break; 2070 case 3: 2071 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma); 2072 break; 2073 } 2074 } 2075 2076 tx_ring->producer = get_next_index(producer, num_txd); 2077 2078 netxen_tso_check(netdev, tx_ring, first_desc, skb); 2079 2080 adapter->stats.txbytes += skb->len; 2081 adapter->stats.xmitcalled++; 2082 2083 netxen_nic_update_cmd_producer(adapter, tx_ring); 2084 2085 return NETDEV_TX_OK; 2086 2087drop_packet: 2088 adapter->stats.txdropped++; 2089 dev_kfree_skb_any(skb); 2090 return NETDEV_TX_OK; 2091} 2092 2093static int netxen_nic_check_temp(struct netxen_adapter *adapter) 2094{ 2095 struct net_device *netdev = adapter->netdev; 2096 uint32_t temp, temp_state, temp_val; 2097 int rv = 0; 2098 2099 temp = NXRD32(adapter, CRB_TEMP_STATE); 2100 2101 temp_state = nx_get_temp_state(temp); 2102 temp_val = nx_get_temp_val(temp); 2103 2104 if (temp_state == NX_TEMP_PANIC) { 2105 printk(KERN_ALERT 2106 "%s: Device temperature %d degrees C exceeds" 2107 " maximum allowed. Hardware has been shut down.\n", 2108 netdev->name, temp_val); 2109 rv = 1; 2110 } else if (temp_state == NX_TEMP_WARN) { 2111 if (adapter->temp == NX_TEMP_NORMAL) { 2112 printk(KERN_ALERT 2113 "%s: Device temperature %d degrees C " 2114 "exceeds operating range." 2115 " Immediate action needed.\n", 2116 netdev->name, temp_val); 2117 } 2118 } else { 2119 if (adapter->temp == NX_TEMP_WARN) { 2120 printk(KERN_INFO 2121 "%s: Device temperature is now %d degrees C" 2122 " in normal range.\n", netdev->name, 2123 temp_val); 2124 } 2125 } 2126 adapter->temp = temp_state; 2127 return rv; 2128} 2129 2130void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup) 2131{ 2132 struct net_device *netdev = adapter->netdev; 2133 2134 if (adapter->ahw.linkup && !linkup) { 2135 printk(KERN_INFO "%s: %s NIC Link is down\n", 2136 netxen_nic_driver_name, netdev->name); 2137 adapter->ahw.linkup = 0; 2138 if (netif_running(netdev)) { 2139 netif_carrier_off(netdev); 2140 netif_stop_queue(netdev); 2141 } 2142 adapter->link_changed = !adapter->has_link_events; 2143 } else if (!adapter->ahw.linkup && linkup) { 2144 printk(KERN_INFO "%s: %s NIC Link is up\n", 2145 netxen_nic_driver_name, netdev->name); 2146 adapter->ahw.linkup = 1; 2147 if (netif_running(netdev)) { 2148 netif_carrier_on(netdev); 2149 netif_wake_queue(netdev); 2150 } 2151 adapter->link_changed = !adapter->has_link_events; 2152 } 2153} 2154 2155static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter) 2156{ 2157 u32 val, port, linkup; 2158 2159 port = adapter->physical_port; 2160 2161 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 2162 val = NXRD32(adapter, CRB_XG_STATE_P3); 2163 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val); 2164 linkup = (val == XG_LINK_UP_P3); 2165 } else { 2166 val = NXRD32(adapter, CRB_XG_STATE); 2167 val = (val >> port*8) & 0xff; 2168 linkup = (val == XG_LINK_UP); 2169 } 2170 2171 netxen_advert_link_change(adapter, linkup); 2172} 2173 2174static void netxen_tx_timeout(struct net_device *netdev) 2175{ 2176 struct netxen_adapter *adapter = netdev_priv(netdev); 2177 2178 if (test_bit(__NX_RESETTING, &adapter->state)) 2179 return; 2180 2181 dev_err(&netdev->dev, "transmit timeout, resetting.\n"); 2182 schedule_work(&adapter->tx_timeout_task); 2183} 2184 2185static void netxen_tx_timeout_task(struct work_struct *work) 2186{ 2187 struct netxen_adapter *adapter = 2188 container_of(work, struct netxen_adapter, tx_timeout_task); 2189 2190 if (!netif_running(adapter->netdev)) 2191 return; 2192 2193 if (test_and_set_bit(__NX_RESETTING, &adapter->state)) 2194 return; 2195 2196 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS) 2197 goto request_reset; 2198 2199 rtnl_lock(); 2200 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 2201 /* try to scrub interrupt */ 2202 netxen_napi_disable(adapter); 2203 2204 netxen_napi_enable(adapter); 2205 2206 netif_wake_queue(adapter->netdev); 2207 2208 clear_bit(__NX_RESETTING, &adapter->state); 2209 } else { 2210 clear_bit(__NX_RESETTING, &adapter->state); 2211 if (netxen_nic_reset_context(adapter)) { 2212 rtnl_unlock(); 2213 goto request_reset; 2214 } 2215 } 2216 adapter->netdev->trans_start = jiffies; 2217 rtnl_unlock(); 2218 return; 2219 2220request_reset: 2221 adapter->need_fw_reset = 1; 2222 clear_bit(__NX_RESETTING, &adapter->state); 2223} 2224 2225static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *netdev, 2226 struct rtnl_link_stats64 *stats) 2227{ 2228 struct netxen_adapter *adapter = netdev_priv(netdev); 2229 2230 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts; 2231 stats->tx_packets = adapter->stats.xmitfinished; 2232 stats->rx_bytes = adapter->stats.rxbytes; 2233 stats->tx_bytes = adapter->stats.txbytes; 2234 stats->rx_dropped = adapter->stats.rxdropped; 2235 stats->tx_dropped = adapter->stats.txdropped; 2236 2237 return stats; 2238} 2239 2240static irqreturn_t netxen_intr(int irq, void *data) 2241{ 2242 struct nx_host_sds_ring *sds_ring = data; 2243 struct netxen_adapter *adapter = sds_ring->adapter; 2244 u32 status = 0; 2245 2246 status = readl(adapter->isr_int_vec); 2247 2248 if (!(status & adapter->int_vec_bit)) 2249 return IRQ_NONE; 2250 2251 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 2252 /* check interrupt state machine, to be sure */ 2253 status = readl(adapter->crb_int_state_reg); 2254 if (!ISR_LEGACY_INT_TRIGGERED(status)) 2255 return IRQ_NONE; 2256 2257 } else { 2258 unsigned long our_int = 0; 2259 2260 our_int = readl(adapter->crb_int_state_reg); 2261 2262 /* not our interrupt */ 2263 if (!test_and_clear_bit((7 + adapter->portnum), &our_int)) 2264 return IRQ_NONE; 2265 2266 /* claim interrupt */ 2267 writel((our_int & 0xffffffff), adapter->crb_int_state_reg); 2268 2269 /* clear interrupt */ 2270 netxen_nic_disable_int(sds_ring); 2271 } 2272 2273 writel(0xffffffff, adapter->tgt_status_reg); 2274 /* read twice to ensure write is flushed */ 2275 readl(adapter->isr_int_vec); 2276 readl(adapter->isr_int_vec); 2277 2278 napi_schedule(&sds_ring->napi); 2279 2280 return IRQ_HANDLED; 2281} 2282 2283static irqreturn_t netxen_msi_intr(int irq, void *data) 2284{ 2285 struct nx_host_sds_ring *sds_ring = data; 2286 struct netxen_adapter *adapter = sds_ring->adapter; 2287 2288 /* clear interrupt */ 2289 writel(0xffffffff, adapter->tgt_status_reg); 2290 2291 napi_schedule(&sds_ring->napi); 2292 return IRQ_HANDLED; 2293} 2294 2295static irqreturn_t netxen_msix_intr(int irq, void *data) 2296{ 2297 struct nx_host_sds_ring *sds_ring = data; 2298 2299 napi_schedule(&sds_ring->napi); 2300 return IRQ_HANDLED; 2301} 2302 2303static int netxen_nic_poll(struct napi_struct *napi, int budget) 2304{ 2305 struct nx_host_sds_ring *sds_ring = 2306 container_of(napi, struct nx_host_sds_ring, napi); 2307 2308 struct netxen_adapter *adapter = sds_ring->adapter; 2309 2310 int tx_complete; 2311 int work_done; 2312 2313 tx_complete = netxen_process_cmd_ring(adapter); 2314 2315 work_done = netxen_process_rcv_ring(sds_ring, budget); 2316 2317 if ((work_done < budget) && tx_complete) { 2318 napi_complete(&sds_ring->napi); 2319 if (test_bit(__NX_DEV_UP, &adapter->state)) 2320 netxen_nic_enable_int(sds_ring); 2321 } 2322 2323 return work_done; 2324} 2325 2326#ifdef CONFIG_NET_POLL_CONTROLLER 2327static void netxen_nic_poll_controller(struct net_device *netdev) 2328{ 2329 int ring; 2330 struct nx_host_sds_ring *sds_ring; 2331 struct netxen_adapter *adapter = netdev_priv(netdev); 2332 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 2333 2334 disable_irq(adapter->irq); 2335 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 2336 sds_ring = &recv_ctx->sds_rings[ring]; 2337 netxen_intr(adapter->irq, sds_ring); 2338 } 2339 enable_irq(adapter->irq); 2340} 2341#endif 2342 2343static int 2344nx_incr_dev_ref_cnt(struct netxen_adapter *adapter) 2345{ 2346 int count; 2347 if (netxen_api_lock(adapter)) 2348 return -EIO; 2349 2350 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2351 2352 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count); 2353 2354 netxen_api_unlock(adapter); 2355 return count; 2356} 2357 2358static int 2359nx_decr_dev_ref_cnt(struct netxen_adapter *adapter) 2360{ 2361 int count, state; 2362 if (netxen_api_lock(adapter)) 2363 return -EIO; 2364 2365 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2366 WARN_ON(count == 0); 2367 2368 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count); 2369 state = NXRD32(adapter, NX_CRB_DEV_STATE); 2370 2371 if (count == 0 && state != NX_DEV_FAILED) 2372 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD); 2373 2374 netxen_api_unlock(adapter); 2375 return count; 2376} 2377 2378static int 2379nx_dev_request_aer(struct netxen_adapter *adapter) 2380{ 2381 u32 state; 2382 int ret = -EINVAL; 2383 2384 if (netxen_api_lock(adapter)) 2385 return ret; 2386 2387 state = NXRD32(adapter, NX_CRB_DEV_STATE); 2388 2389 if (state == NX_DEV_NEED_AER) 2390 ret = 0; 2391 else if (state == NX_DEV_READY) { 2392 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER); 2393 ret = 0; 2394 } 2395 2396 netxen_api_unlock(adapter); 2397 return ret; 2398} 2399 2400int 2401nx_dev_request_reset(struct netxen_adapter *adapter) 2402{ 2403 u32 state; 2404 int ret = -EINVAL; 2405 2406 if (netxen_api_lock(adapter)) 2407 return ret; 2408 2409 state = NXRD32(adapter, NX_CRB_DEV_STATE); 2410 2411 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) 2412 ret = 0; 2413 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) { 2414 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET); 2415 adapter->flags |= NETXEN_FW_RESET_OWNER; 2416 ret = 0; 2417 } 2418 2419 netxen_api_unlock(adapter); 2420 2421 return ret; 2422} 2423 2424static int 2425netxen_can_start_firmware(struct netxen_adapter *adapter) 2426{ 2427 int count; 2428 int can_start = 0; 2429 2430 if (netxen_api_lock(adapter)) { 2431 nx_incr_dev_ref_cnt(adapter); 2432 return -1; 2433 } 2434 2435 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2436 2437 if ((count < 0) || (count >= NX_MAX_PCI_FUNC)) 2438 count = 0; 2439 2440 if (count == 0) { 2441 can_start = 1; 2442 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING); 2443 } 2444 2445 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count); 2446 2447 netxen_api_unlock(adapter); 2448 2449 return can_start; 2450} 2451 2452static void 2453netxen_schedule_work(struct netxen_adapter *adapter, 2454 work_func_t func, int delay) 2455{ 2456 INIT_DELAYED_WORK(&adapter->fw_work, func); 2457 schedule_delayed_work(&adapter->fw_work, delay); 2458} 2459 2460static void 2461netxen_cancel_fw_work(struct netxen_adapter *adapter) 2462{ 2463 while (test_and_set_bit(__NX_RESETTING, &adapter->state)) 2464 msleep(10); 2465 2466 cancel_delayed_work_sync(&adapter->fw_work); 2467} 2468 2469static void 2470netxen_attach_work(struct work_struct *work) 2471{ 2472 struct netxen_adapter *adapter = container_of(work, 2473 struct netxen_adapter, fw_work.work); 2474 struct net_device *netdev = adapter->netdev; 2475 int err = 0; 2476 2477 if (netif_running(netdev)) { 2478 err = netxen_nic_attach(adapter); 2479 if (err) 2480 goto done; 2481 2482 err = netxen_nic_up(adapter, netdev); 2483 if (err) { 2484 netxen_nic_detach(adapter); 2485 goto done; 2486 } 2487 2488 netxen_restore_indev_addr(netdev, NETDEV_UP); 2489 } 2490 2491 netif_device_attach(netdev); 2492 2493done: 2494 adapter->fw_fail_cnt = 0; 2495 clear_bit(__NX_RESETTING, &adapter->state); 2496 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 2497} 2498 2499static void 2500netxen_fwinit_work(struct work_struct *work) 2501{ 2502 struct netxen_adapter *adapter = container_of(work, 2503 struct netxen_adapter, fw_work.work); 2504 int dev_state; 2505 int count; 2506 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE); 2507 if (adapter->flags & NETXEN_FW_RESET_OWNER) { 2508 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2509 WARN_ON(count == 0); 2510 if (count == 1) { 2511 if (adapter->mdump.md_enabled) { 2512 rtnl_lock(); 2513 netxen_dump_fw(adapter); 2514 rtnl_unlock(); 2515 } 2516 adapter->flags &= ~NETXEN_FW_RESET_OWNER; 2517 if (netxen_api_lock(adapter)) { 2518 clear_bit(__NX_RESETTING, &adapter->state); 2519 NXWR32(adapter, NX_CRB_DEV_STATE, 2520 NX_DEV_FAILED); 2521 return; 2522 } 2523 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2524 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count); 2525 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD); 2526 dev_state = NX_DEV_COLD; 2527 netxen_api_unlock(adapter); 2528 } 2529 } 2530 2531 switch (dev_state) { 2532 case NX_DEV_COLD: 2533 case NX_DEV_READY: 2534 if (!netxen_start_firmware(adapter)) { 2535 netxen_schedule_work(adapter, netxen_attach_work, 0); 2536 return; 2537 } 2538 break; 2539 2540 case NX_DEV_NEED_RESET: 2541 case NX_DEV_INITALIZING: 2542 netxen_schedule_work(adapter, 2543 netxen_fwinit_work, 2 * FW_POLL_DELAY); 2544 return; 2545 2546 case NX_DEV_FAILED: 2547 default: 2548 nx_incr_dev_ref_cnt(adapter); 2549 break; 2550 } 2551 2552 if (netxen_api_lock(adapter)) { 2553 clear_bit(__NX_RESETTING, &adapter->state); 2554 return; 2555 } 2556 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_FAILED); 2557 netxen_api_unlock(adapter); 2558 dev_err(&adapter->pdev->dev, "%s: Device initialization Failed\n", 2559 adapter->netdev->name); 2560 2561 clear_bit(__NX_RESETTING, &adapter->state); 2562} 2563 2564static void 2565netxen_detach_work(struct work_struct *work) 2566{ 2567 struct netxen_adapter *adapter = container_of(work, 2568 struct netxen_adapter, fw_work.work); 2569 struct net_device *netdev = adapter->netdev; 2570 int ref_cnt = 0, delay; 2571 u32 status; 2572 2573 netif_device_detach(netdev); 2574 2575 netxen_nic_down(adapter, netdev); 2576 2577 rtnl_lock(); 2578 netxen_nic_detach(adapter); 2579 rtnl_unlock(); 2580 2581 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1); 2582 2583 if (status & NX_RCODE_FATAL_ERROR) 2584 goto err_ret; 2585 2586 if (adapter->temp == NX_TEMP_PANIC) 2587 goto err_ret; 2588 2589 if (!(adapter->flags & NETXEN_FW_RESET_OWNER)) 2590 ref_cnt = nx_decr_dev_ref_cnt(adapter); 2591 2592 if (ref_cnt == -EIO) 2593 goto err_ret; 2594 2595 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY); 2596 2597 adapter->fw_wait_cnt = 0; 2598 netxen_schedule_work(adapter, netxen_fwinit_work, delay); 2599 2600 return; 2601 2602err_ret: 2603 clear_bit(__NX_RESETTING, &adapter->state); 2604} 2605 2606static int 2607netxen_check_health(struct netxen_adapter *adapter) 2608{ 2609 u32 state, heartbit; 2610 u32 peg_status; 2611 struct net_device *netdev = adapter->netdev; 2612 2613 state = NXRD32(adapter, NX_CRB_DEV_STATE); 2614 if (state == NX_DEV_NEED_AER) 2615 return 0; 2616 2617 if (netxen_nic_check_temp(adapter)) 2618 goto detach; 2619 2620 if (adapter->need_fw_reset) { 2621 if (nx_dev_request_reset(adapter)) 2622 return 0; 2623 goto detach; 2624 } 2625 2626 /* NX_DEV_NEED_RESET, this state can be marked in two cases 2627 * 1. Tx timeout 2. Fw hang 2628 * Send request to destroy context in case of tx timeout only 2629 * and doesn't required in case of Fw hang 2630 */ 2631 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) { 2632 adapter->need_fw_reset = 1; 2633 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 2634 goto detach; 2635 } 2636 2637 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 2638 return 0; 2639 2640 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER); 2641 if (heartbit != adapter->heartbit) { 2642 adapter->heartbit = heartbit; 2643 adapter->fw_fail_cnt = 0; 2644 if (adapter->need_fw_reset) 2645 goto detach; 2646 return 0; 2647 } 2648 2649 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH) 2650 return 0; 2651 2652 if (nx_dev_request_reset(adapter)) 2653 return 0; 2654 2655 clear_bit(__NX_FW_ATTACHED, &adapter->state); 2656 2657 dev_err(&netdev->dev, "firmware hang detected\n"); 2658 peg_status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1); 2659 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n" 2660 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n" 2661 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n" 2662 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n" 2663 "PEG_NET_4_PC: 0x%x\n", 2664 peg_status, 2665 NXRD32(adapter, NETXEN_PEG_HALT_STATUS2), 2666 NXRD32(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c), 2667 NXRD32(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c), 2668 NXRD32(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c), 2669 NXRD32(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c), 2670 NXRD32(adapter, NETXEN_CRB_PEG_NET_4 + 0x3c)); 2671 if (NX_FWERROR_PEGSTAT1(peg_status) == 0x67) 2672 dev_err(&adapter->pdev->dev, 2673 "Firmware aborted with error code 0x00006700. " 2674 "Device is being reset.\n"); 2675detach: 2676 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) && 2677 !test_and_set_bit(__NX_RESETTING, &adapter->state)) 2678 netxen_schedule_work(adapter, netxen_detach_work, 0); 2679 return 1; 2680} 2681 2682static void 2683netxen_fw_poll_work(struct work_struct *work) 2684{ 2685 struct netxen_adapter *adapter = container_of(work, 2686 struct netxen_adapter, fw_work.work); 2687 2688 if (test_bit(__NX_RESETTING, &adapter->state)) 2689 goto reschedule; 2690 2691 if (test_bit(__NX_DEV_UP, &adapter->state)) { 2692 if (!adapter->has_link_events) { 2693 2694 netxen_nic_handle_phy_intr(adapter); 2695 2696 if (adapter->link_changed) 2697 netxen_nic_set_link_parameters(adapter); 2698 } 2699 } 2700 2701 if (netxen_check_health(adapter)) 2702 return; 2703 2704reschedule: 2705 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 2706} 2707 2708static ssize_t 2709netxen_store_bridged_mode(struct device *dev, 2710 struct device_attribute *attr, const char *buf, size_t len) 2711{ 2712 struct net_device *net = to_net_dev(dev); 2713 struct netxen_adapter *adapter = netdev_priv(net); 2714 unsigned long new; 2715 int ret = -EINVAL; 2716 2717 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG)) 2718 goto err_out; 2719 2720 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 2721 goto err_out; 2722 2723 if (strict_strtoul(buf, 2, &new)) 2724 goto err_out; 2725 2726 if (!netxen_config_bridged_mode(adapter, !!new)) 2727 ret = len; 2728 2729err_out: 2730 return ret; 2731} 2732 2733static ssize_t 2734netxen_show_bridged_mode(struct device *dev, 2735 struct device_attribute *attr, char *buf) 2736{ 2737 struct net_device *net = to_net_dev(dev); 2738 struct netxen_adapter *adapter; 2739 int bridged_mode = 0; 2740 2741 adapter = netdev_priv(net); 2742 2743 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) 2744 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED); 2745 2746 return sprintf(buf, "%d\n", bridged_mode); 2747} 2748 2749static struct device_attribute dev_attr_bridged_mode = { 2750 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)}, 2751 .show = netxen_show_bridged_mode, 2752 .store = netxen_store_bridged_mode, 2753}; 2754 2755static ssize_t 2756netxen_store_diag_mode(struct device *dev, 2757 struct device_attribute *attr, const char *buf, size_t len) 2758{ 2759 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2760 unsigned long new; 2761 2762 if (strict_strtoul(buf, 2, &new)) 2763 return -EINVAL; 2764 2765 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) 2766 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED; 2767 2768 return len; 2769} 2770 2771static ssize_t 2772netxen_show_diag_mode(struct device *dev, 2773 struct device_attribute *attr, char *buf) 2774{ 2775 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2776 2777 return sprintf(buf, "%d\n", 2778 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)); 2779} 2780 2781static struct device_attribute dev_attr_diag_mode = { 2782 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)}, 2783 .show = netxen_show_diag_mode, 2784 .store = netxen_store_diag_mode, 2785}; 2786 2787static int 2788netxen_sysfs_validate_crb(struct netxen_adapter *adapter, 2789 loff_t offset, size_t size) 2790{ 2791 size_t crb_size = 4; 2792 2793 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) 2794 return -EIO; 2795 2796 if (offset < NETXEN_PCI_CRBSPACE) { 2797 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 2798 return -EINVAL; 2799 2800 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, 2801 NETXEN_PCI_CAMQM_2M_END)) 2802 crb_size = 8; 2803 else 2804 return -EINVAL; 2805 } 2806 2807 if ((size != crb_size) || (offset & (crb_size-1))) 2808 return -EINVAL; 2809 2810 return 0; 2811} 2812 2813static ssize_t 2814netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj, 2815 struct bin_attribute *attr, 2816 char *buf, loff_t offset, size_t size) 2817{ 2818 struct device *dev = container_of(kobj, struct device, kobj); 2819 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2820 u32 data; 2821 u64 qmdata; 2822 int ret; 2823 2824 ret = netxen_sysfs_validate_crb(adapter, offset, size); 2825 if (ret != 0) 2826 return ret; 2827 2828 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && 2829 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, 2830 NETXEN_PCI_CAMQM_2M_END)) { 2831 netxen_pci_camqm_read_2M(adapter, offset, &qmdata); 2832 memcpy(buf, &qmdata, size); 2833 } else { 2834 data = NXRD32(adapter, offset); 2835 memcpy(buf, &data, size); 2836 } 2837 2838 return size; 2839} 2840 2841static ssize_t 2842netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj, 2843 struct bin_attribute *attr, 2844 char *buf, loff_t offset, size_t size) 2845{ 2846 struct device *dev = container_of(kobj, struct device, kobj); 2847 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2848 u32 data; 2849 u64 qmdata; 2850 int ret; 2851 2852 ret = netxen_sysfs_validate_crb(adapter, offset, size); 2853 if (ret != 0) 2854 return ret; 2855 2856 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && 2857 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, 2858 NETXEN_PCI_CAMQM_2M_END)) { 2859 memcpy(&qmdata, buf, size); 2860 netxen_pci_camqm_write_2M(adapter, offset, qmdata); 2861 } else { 2862 memcpy(&data, buf, size); 2863 NXWR32(adapter, offset, data); 2864 } 2865 2866 return size; 2867} 2868 2869static int 2870netxen_sysfs_validate_mem(struct netxen_adapter *adapter, 2871 loff_t offset, size_t size) 2872{ 2873 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) 2874 return -EIO; 2875 2876 if ((size != 8) || (offset & 0x7)) 2877 return -EIO; 2878 2879 return 0; 2880} 2881 2882static ssize_t 2883netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj, 2884 struct bin_attribute *attr, 2885 char *buf, loff_t offset, size_t size) 2886{ 2887 struct device *dev = container_of(kobj, struct device, kobj); 2888 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2889 u64 data; 2890 int ret; 2891 2892 ret = netxen_sysfs_validate_mem(adapter, offset, size); 2893 if (ret != 0) 2894 return ret; 2895 2896 if (adapter->pci_mem_read(adapter, offset, &data)) 2897 return -EIO; 2898 2899 memcpy(buf, &data, size); 2900 2901 return size; 2902} 2903 2904static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj, 2905 struct bin_attribute *attr, char *buf, 2906 loff_t offset, size_t size) 2907{ 2908 struct device *dev = container_of(kobj, struct device, kobj); 2909 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2910 u64 data; 2911 int ret; 2912 2913 ret = netxen_sysfs_validate_mem(adapter, offset, size); 2914 if (ret != 0) 2915 return ret; 2916 2917 memcpy(&data, buf, size); 2918 2919 if (adapter->pci_mem_write(adapter, offset, data)) 2920 return -EIO; 2921 2922 return size; 2923} 2924 2925 2926static struct bin_attribute bin_attr_crb = { 2927 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)}, 2928 .size = 0, 2929 .read = netxen_sysfs_read_crb, 2930 .write = netxen_sysfs_write_crb, 2931}; 2932 2933static struct bin_attribute bin_attr_mem = { 2934 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)}, 2935 .size = 0, 2936 .read = netxen_sysfs_read_mem, 2937 .write = netxen_sysfs_write_mem, 2938}; 2939 2940static ssize_t 2941netxen_sysfs_read_dimm(struct file *filp, struct kobject *kobj, 2942 struct bin_attribute *attr, 2943 char *buf, loff_t offset, size_t size) 2944{ 2945 struct device *dev = container_of(kobj, struct device, kobj); 2946 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2947 struct net_device *netdev = adapter->netdev; 2948 struct netxen_dimm_cfg dimm; 2949 u8 dw, rows, cols, banks, ranks; 2950 u32 val; 2951 2952 if (size != sizeof(struct netxen_dimm_cfg)) { 2953 netdev_err(netdev, "Invalid size\n"); 2954 return -1; 2955 } 2956 2957 memset(&dimm, 0, sizeof(struct netxen_dimm_cfg)); 2958 val = NXRD32(adapter, NETXEN_DIMM_CAPABILITY); 2959 2960 /* Checks if DIMM info is valid. */ 2961 if (val & NETXEN_DIMM_VALID_FLAG) { 2962 netdev_err(netdev, "Invalid DIMM flag\n"); 2963 dimm.presence = 0xff; 2964 goto out; 2965 } 2966 2967 rows = NETXEN_DIMM_NUMROWS(val); 2968 cols = NETXEN_DIMM_NUMCOLS(val); 2969 ranks = NETXEN_DIMM_NUMRANKS(val); 2970 banks = NETXEN_DIMM_NUMBANKS(val); 2971 dw = NETXEN_DIMM_DATAWIDTH(val); 2972 2973 dimm.presence = (val & NETXEN_DIMM_PRESENT); 2974 2975 /* Checks if DIMM info is present. */ 2976 if (!dimm.presence) { 2977 netdev_err(netdev, "DIMM not present\n"); 2978 goto out; 2979 } 2980 2981 dimm.dimm_type = NETXEN_DIMM_TYPE(val); 2982 2983 switch (dimm.dimm_type) { 2984 case NETXEN_DIMM_TYPE_RDIMM: 2985 case NETXEN_DIMM_TYPE_UDIMM: 2986 case NETXEN_DIMM_TYPE_SO_DIMM: 2987 case NETXEN_DIMM_TYPE_Micro_DIMM: 2988 case NETXEN_DIMM_TYPE_Mini_RDIMM: 2989 case NETXEN_DIMM_TYPE_Mini_UDIMM: 2990 break; 2991 default: 2992 netdev_err(netdev, "Invalid DIMM type %x\n", dimm.dimm_type); 2993 goto out; 2994 } 2995 2996 if (val & NETXEN_DIMM_MEMTYPE_DDR2_SDRAM) 2997 dimm.mem_type = NETXEN_DIMM_MEM_DDR2_SDRAM; 2998 else 2999 dimm.mem_type = NETXEN_DIMM_MEMTYPE(val); 3000 3001 if (val & NETXEN_DIMM_SIZE) { 3002 dimm.size = NETXEN_DIMM_STD_MEM_SIZE; 3003 goto out; 3004 } 3005 3006 if (!rows) { 3007 netdev_err(netdev, "Invalid no of rows %x\n", rows); 3008 goto out; 3009 } 3010 3011 if (!cols) { 3012 netdev_err(netdev, "Invalid no of columns %x\n", cols); 3013 goto out; 3014 } 3015 3016 if (!banks) { 3017 netdev_err(netdev, "Invalid no of banks %x\n", banks); 3018 goto out; 3019 } 3020 3021 ranks += 1; 3022 3023 switch (dw) { 3024 case 0x0: 3025 dw = 32; 3026 break; 3027 case 0x1: 3028 dw = 33; 3029 break; 3030 case 0x2: 3031 dw = 36; 3032 break; 3033 case 0x3: 3034 dw = 64; 3035 break; 3036 case 0x4: 3037 dw = 72; 3038 break; 3039 case 0x5: 3040 dw = 80; 3041 break; 3042 case 0x6: 3043 dw = 128; 3044 break; 3045 case 0x7: 3046 dw = 144; 3047 break; 3048 default: 3049 netdev_err(netdev, "Invalid data-width %x\n", dw); 3050 goto out; 3051 } 3052 3053 dimm.size = ((1 << rows) * (1 << cols) * dw * banks * ranks) / 8; 3054 /* Size returned in MB. */ 3055 dimm.size = (dimm.size) / 0x100000; 3056out: 3057 memcpy(buf, &dimm, sizeof(struct netxen_dimm_cfg)); 3058 return sizeof(struct netxen_dimm_cfg); 3059 3060} 3061 3062static struct bin_attribute bin_attr_dimm = { 3063 .attr = { .name = "dimm", .mode = (S_IRUGO | S_IWUSR) }, 3064 .size = 0, 3065 .read = netxen_sysfs_read_dimm, 3066}; 3067 3068 3069static void 3070netxen_create_sysfs_entries(struct netxen_adapter *adapter) 3071{ 3072 struct device *dev = &adapter->pdev->dev; 3073 3074 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) { 3075 /* bridged_mode control */ 3076 if (device_create_file(dev, &dev_attr_bridged_mode)) { 3077 dev_warn(dev, 3078 "failed to create bridged_mode sysfs entry\n"); 3079 } 3080 } 3081} 3082 3083static void 3084netxen_remove_sysfs_entries(struct netxen_adapter *adapter) 3085{ 3086 struct device *dev = &adapter->pdev->dev; 3087 3088 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) 3089 device_remove_file(dev, &dev_attr_bridged_mode); 3090} 3091 3092static void 3093netxen_create_diag_entries(struct netxen_adapter *adapter) 3094{ 3095 struct pci_dev *pdev = adapter->pdev; 3096 struct device *dev; 3097 3098 dev = &pdev->dev; 3099 if (device_create_file(dev, &dev_attr_diag_mode)) 3100 dev_info(dev, "failed to create diag_mode sysfs entry\n"); 3101 if (device_create_bin_file(dev, &bin_attr_crb)) 3102 dev_info(dev, "failed to create crb sysfs entry\n"); 3103 if (device_create_bin_file(dev, &bin_attr_mem)) 3104 dev_info(dev, "failed to create mem sysfs entry\n"); 3105 if (device_create_bin_file(dev, &bin_attr_dimm)) 3106 dev_info(dev, "failed to create dimm sysfs entry\n"); 3107} 3108 3109 3110static void 3111netxen_remove_diag_entries(struct netxen_adapter *adapter) 3112{ 3113 struct pci_dev *pdev = adapter->pdev; 3114 struct device *dev = &pdev->dev; 3115 3116 device_remove_file(dev, &dev_attr_diag_mode); 3117 device_remove_bin_file(dev, &bin_attr_crb); 3118 device_remove_bin_file(dev, &bin_attr_mem); 3119 device_remove_bin_file(dev, &bin_attr_dimm); 3120} 3121 3122#ifdef CONFIG_INET 3123 3124#define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops) 3125 3126static int 3127netxen_destip_supported(struct netxen_adapter *adapter) 3128{ 3129 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 3130 return 0; 3131 3132 if (adapter->ahw.cut_through) 3133 return 0; 3134 3135 return 1; 3136} 3137 3138static void 3139netxen_free_vlan_ip_list(struct netxen_adapter *adapter) 3140{ 3141 struct nx_vlan_ip_list *cur; 3142 struct list_head *head = &adapter->vlan_ip_list; 3143 3144 while (!list_empty(head)) { 3145 cur = list_entry(head->next, struct nx_vlan_ip_list, list); 3146 netxen_config_ipaddr(adapter, cur->ip_addr, NX_IP_DOWN); 3147 list_del(&cur->list); 3148 kfree(cur); 3149 } 3150 3151} 3152static void 3153netxen_list_config_vlan_ip(struct netxen_adapter *adapter, 3154 struct in_ifaddr *ifa, unsigned long event) 3155{ 3156 struct net_device *dev; 3157 struct nx_vlan_ip_list *cur, *tmp_cur; 3158 struct list_head *head; 3159 3160 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL; 3161 3162 if (dev == NULL) 3163 return; 3164 3165 if (!is_vlan_dev(dev)) 3166 return; 3167 3168 switch (event) { 3169 case NX_IP_UP: 3170 list_for_each(head, &adapter->vlan_ip_list) { 3171 cur = list_entry(head, struct nx_vlan_ip_list, list); 3172 3173 if (cur->ip_addr == ifa->ifa_address) 3174 return; 3175 } 3176 3177 cur = kzalloc(sizeof(struct nx_vlan_ip_list), GFP_ATOMIC); 3178 if (cur == NULL) { 3179 printk(KERN_ERR "%s: failed to add vlan ip to list\n", 3180 adapter->netdev->name); 3181 return; 3182 } 3183 3184 cur->ip_addr = ifa->ifa_address; 3185 list_add_tail(&cur->list, &adapter->vlan_ip_list); 3186 break; 3187 case NX_IP_DOWN: 3188 list_for_each_entry_safe(cur, tmp_cur, 3189 &adapter->vlan_ip_list, list) { 3190 if (cur->ip_addr == ifa->ifa_address) { 3191 list_del(&cur->list); 3192 kfree(cur); 3193 break; 3194 } 3195 } 3196 } 3197} 3198static void 3199netxen_config_indev_addr(struct netxen_adapter *adapter, 3200 struct net_device *dev, unsigned long event) 3201{ 3202 struct in_device *indev; 3203 3204 if (!netxen_destip_supported(adapter)) 3205 return; 3206 3207 indev = in_dev_get(dev); 3208 if (!indev) 3209 return; 3210 3211 for_ifa(indev) { 3212 switch (event) { 3213 case NETDEV_UP: 3214 netxen_config_ipaddr(adapter, 3215 ifa->ifa_address, NX_IP_UP); 3216 netxen_list_config_vlan_ip(adapter, ifa, NX_IP_UP); 3217 break; 3218 case NETDEV_DOWN: 3219 netxen_config_ipaddr(adapter, 3220 ifa->ifa_address, NX_IP_DOWN); 3221 netxen_list_config_vlan_ip(adapter, ifa, NX_IP_DOWN); 3222 break; 3223 default: 3224 break; 3225 } 3226 } endfor_ifa(indev); 3227 3228 in_dev_put(indev); 3229} 3230 3231static void 3232netxen_restore_indev_addr(struct net_device *netdev, unsigned long event) 3233 3234{ 3235 struct netxen_adapter *adapter = netdev_priv(netdev); 3236 struct nx_vlan_ip_list *pos, *tmp_pos; 3237 unsigned long ip_event; 3238 3239 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN; 3240 netxen_config_indev_addr(adapter, netdev, event); 3241 3242 list_for_each_entry_safe(pos, tmp_pos, &adapter->vlan_ip_list, list) { 3243 netxen_config_ipaddr(adapter, pos->ip_addr, ip_event); 3244 } 3245} 3246 3247static int netxen_netdev_event(struct notifier_block *this, 3248 unsigned long event, void *ptr) 3249{ 3250 struct netxen_adapter *adapter; 3251 struct net_device *dev = (struct net_device *)ptr; 3252 struct net_device *orig_dev = dev; 3253 3254recheck: 3255 if (dev == NULL) 3256 goto done; 3257 3258 if (dev->priv_flags & IFF_802_1Q_VLAN) { 3259 dev = vlan_dev_real_dev(dev); 3260 goto recheck; 3261 } 3262 3263 if (!is_netxen_netdev(dev)) 3264 goto done; 3265 3266 adapter = netdev_priv(dev); 3267 3268 if (!adapter) 3269 goto done; 3270 3271 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 3272 goto done; 3273 3274 netxen_config_indev_addr(adapter, orig_dev, event); 3275done: 3276 return NOTIFY_DONE; 3277} 3278 3279static int 3280netxen_inetaddr_event(struct notifier_block *this, 3281 unsigned long event, void *ptr) 3282{ 3283 struct netxen_adapter *adapter; 3284 struct net_device *dev; 3285 3286 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr; 3287 3288 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL; 3289 3290recheck: 3291 if (dev == NULL) 3292 goto done; 3293 3294 if (dev->priv_flags & IFF_802_1Q_VLAN) { 3295 dev = vlan_dev_real_dev(dev); 3296 goto recheck; 3297 } 3298 3299 if (!is_netxen_netdev(dev)) 3300 goto done; 3301 3302 adapter = netdev_priv(dev); 3303 3304 if (!adapter || !netxen_destip_supported(adapter)) 3305 goto done; 3306 3307 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 3308 goto done; 3309 3310 switch (event) { 3311 case NETDEV_UP: 3312 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP); 3313 netxen_list_config_vlan_ip(adapter, ifa, NX_IP_UP); 3314 break; 3315 case NETDEV_DOWN: 3316 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN); 3317 netxen_list_config_vlan_ip(adapter, ifa, NX_IP_DOWN); 3318 break; 3319 default: 3320 break; 3321 } 3322 3323done: 3324 return NOTIFY_DONE; 3325} 3326 3327static struct notifier_block netxen_netdev_cb = { 3328 .notifier_call = netxen_netdev_event, 3329}; 3330 3331static struct notifier_block netxen_inetaddr_cb = { 3332 .notifier_call = netxen_inetaddr_event, 3333}; 3334#else 3335static void 3336netxen_restore_indev_addr(struct net_device *dev, unsigned long event) 3337{ } 3338static void 3339netxen_free_vlan_ip_list(struct netxen_adapter *adapter) 3340{ } 3341#endif 3342 3343static struct pci_error_handlers netxen_err_handler = { 3344 .error_detected = netxen_io_error_detected, 3345 .slot_reset = netxen_io_slot_reset, 3346 .resume = netxen_io_resume, 3347}; 3348 3349static struct pci_driver netxen_driver = { 3350 .name = netxen_nic_driver_name, 3351 .id_table = netxen_pci_tbl, 3352 .probe = netxen_nic_probe, 3353 .remove = __devexit_p(netxen_nic_remove), 3354#ifdef CONFIG_PM 3355 .suspend = netxen_nic_suspend, 3356 .resume = netxen_nic_resume, 3357#endif 3358 .shutdown = netxen_nic_shutdown, 3359 .err_handler = &netxen_err_handler 3360}; 3361 3362static int __init netxen_init_module(void) 3363{ 3364 printk(KERN_INFO "%s\n", netxen_nic_driver_string); 3365 3366#ifdef CONFIG_INET 3367 register_netdevice_notifier(&netxen_netdev_cb); 3368 register_inetaddr_notifier(&netxen_inetaddr_cb); 3369#endif 3370 return pci_register_driver(&netxen_driver); 3371} 3372 3373module_init(netxen_init_module); 3374 3375static void __exit netxen_exit_module(void) 3376{ 3377 pci_unregister_driver(&netxen_driver); 3378 3379#ifdef CONFIG_INET 3380 unregister_inetaddr_notifier(&netxen_inetaddr_cb); 3381 unregister_netdevice_notifier(&netxen_netdev_cb); 3382#endif 3383} 3384 3385module_exit(netxen_exit_module); 3386