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 Converged Ethernet Driver"); 42MODULE_LICENSE("GPL"); 43MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID); 44MODULE_FIRMWARE(NX_P2_MN_ROMIMAGE_NAME); 45MODULE_FIRMWARE(NX_P3_CT_ROMIMAGE_NAME); 46MODULE_FIRMWARE(NX_P3_MN_ROMIMAGE_NAME); 47MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME); 48 49char netxen_nic_driver_name[] = "netxen_nic"; 50static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v" 51 NETXEN_NIC_LINUX_VERSIONID; 52 53static int port_mode = NETXEN_PORT_MODE_AUTO_NEG; 54 55/* Default to restricted 1G auto-neg mode */ 56static int wol_port_mode = 5; 57 58static int use_msi = 1; 59 60static int use_msi_x = 1; 61 62static int auto_fw_reset = AUTO_FW_RESET_ENABLED; 63module_param(auto_fw_reset, int, 0644); 64MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled"); 65 66static int __devinit netxen_nic_probe(struct pci_dev *pdev, 67 const struct pci_device_id *ent); 68static void __devexit netxen_nic_remove(struct pci_dev *pdev); 69static int netxen_nic_open(struct net_device *netdev); 70static int netxen_nic_close(struct net_device *netdev); 71static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *, 72 struct net_device *); 73static void netxen_tx_timeout(struct net_device *netdev); 74static void netxen_tx_timeout_task(struct work_struct *work); 75static void netxen_fw_poll_work(struct work_struct *work); 76static void netxen_schedule_work(struct netxen_adapter *adapter, 77 work_func_t func, int delay); 78static void netxen_cancel_fw_work(struct netxen_adapter *adapter); 79static int netxen_nic_poll(struct napi_struct *napi, int budget); 80#ifdef CONFIG_NET_POLL_CONTROLLER 81static void netxen_nic_poll_controller(struct net_device *netdev); 82#endif 83 84static void netxen_create_sysfs_entries(struct netxen_adapter *adapter); 85static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter); 86static void netxen_create_diag_entries(struct netxen_adapter *adapter); 87static void netxen_remove_diag_entries(struct netxen_adapter *adapter); 88 89static int nx_dev_request_aer(struct netxen_adapter *adapter); 90static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter); 91static int netxen_can_start_firmware(struct netxen_adapter *adapter); 92 93static irqreturn_t netxen_intr(int irq, void *data); 94static irqreturn_t netxen_msi_intr(int irq, void *data); 95static irqreturn_t netxen_msix_intr(int irq, void *data); 96 97static void netxen_config_indev_addr(struct net_device *dev, unsigned long); 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 if (netxen_tx_avail(tx_ring) <= TX_STOP_THRESH) { 130 netif_stop_queue(adapter->netdev); 131 smp_mb(); 132 } 133} 134 135static uint32_t crb_cmd_consumer[4] = { 136 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1, 137 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3 138}; 139 140static inline void 141netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter, 142 struct nx_host_tx_ring *tx_ring) 143{ 144 NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer); 145} 146 147static uint32_t msi_tgt_status[8] = { 148 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1, 149 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3, 150 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5, 151 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7 152}; 153 154static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG; 155 156static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring) 157{ 158 struct netxen_adapter *adapter = sds_ring->adapter; 159 160 NXWRIO(adapter, sds_ring->crb_intr_mask, 0); 161} 162 163static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring) 164{ 165 struct netxen_adapter *adapter = sds_ring->adapter; 166 167 NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1); 168 169 if (!NETXEN_IS_MSI_FAMILY(adapter)) 170 NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff); 171} 172 173static int 174netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count) 175{ 176 int size = sizeof(struct nx_host_sds_ring) * count; 177 178 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL); 179 180 return (recv_ctx->sds_rings == NULL); 181} 182 183static void 184netxen_free_sds_rings(struct netxen_recv_context *recv_ctx) 185{ 186 if (recv_ctx->sds_rings != NULL) 187 kfree(recv_ctx->sds_rings); 188 189 recv_ctx->sds_rings = NULL; 190} 191 192static int 193netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev) 194{ 195 int ring; 196 struct nx_host_sds_ring *sds_ring; 197 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 198 199 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings)) 200 return -ENOMEM; 201 202 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 203 sds_ring = &recv_ctx->sds_rings[ring]; 204 netif_napi_add(netdev, &sds_ring->napi, 205 netxen_nic_poll, NETXEN_NETDEV_WEIGHT); 206 } 207 208 return 0; 209} 210 211static void 212netxen_napi_del(struct netxen_adapter *adapter) 213{ 214 int ring; 215 struct nx_host_sds_ring *sds_ring; 216 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 217 218 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 219 sds_ring = &recv_ctx->sds_rings[ring]; 220 netif_napi_del(&sds_ring->napi); 221 } 222 223 netxen_free_sds_rings(&adapter->recv_ctx); 224} 225 226static void 227netxen_napi_enable(struct netxen_adapter *adapter) 228{ 229 int ring; 230 struct nx_host_sds_ring *sds_ring; 231 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 232 233 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 234 sds_ring = &recv_ctx->sds_rings[ring]; 235 napi_enable(&sds_ring->napi); 236 netxen_nic_enable_int(sds_ring); 237 } 238} 239 240static void 241netxen_napi_disable(struct netxen_adapter *adapter) 242{ 243 int ring; 244 struct nx_host_sds_ring *sds_ring; 245 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 246 247 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 248 sds_ring = &recv_ctx->sds_rings[ring]; 249 netxen_nic_disable_int(sds_ring); 250 napi_synchronize(&sds_ring->napi); 251 napi_disable(&sds_ring->napi); 252 } 253} 254 255static int nx_set_dma_mask(struct netxen_adapter *adapter) 256{ 257 struct pci_dev *pdev = adapter->pdev; 258 uint64_t mask, cmask; 259 260 adapter->pci_using_dac = 0; 261 262 mask = DMA_BIT_MASK(32); 263 cmask = DMA_BIT_MASK(32); 264 265 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 266#ifndef CONFIG_IA64 267 mask = DMA_BIT_MASK(35); 268#endif 269 } else { 270 mask = DMA_BIT_MASK(39); 271 cmask = mask; 272 } 273 274 if (pci_set_dma_mask(pdev, mask) == 0 && 275 pci_set_consistent_dma_mask(pdev, cmask) == 0) { 276 adapter->pci_using_dac = 1; 277 return 0; 278 } 279 280 return -EIO; 281} 282 283/* Update addressable range if firmware supports it */ 284static int 285nx_update_dma_mask(struct netxen_adapter *adapter) 286{ 287 int change, shift, err; 288 uint64_t mask, old_mask, old_cmask; 289 struct pci_dev *pdev = adapter->pdev; 290 291 change = 0; 292 293 shift = NXRD32(adapter, CRB_DMA_SHIFT); 294 if (shift > 32) 295 return 0; 296 297 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9)) 298 change = 1; 299 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4)) 300 change = 1; 301 302 if (change) { 303 old_mask = pdev->dma_mask; 304 old_cmask = pdev->dev.coherent_dma_mask; 305 306 mask = DMA_BIT_MASK(32+shift); 307 308 err = pci_set_dma_mask(pdev, mask); 309 if (err) 310 goto err_out; 311 312 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 313 314 err = pci_set_consistent_dma_mask(pdev, mask); 315 if (err) 316 goto err_out; 317 } 318 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift); 319 } 320 321 return 0; 322 323err_out: 324 pci_set_dma_mask(pdev, old_mask); 325 pci_set_consistent_dma_mask(pdev, old_cmask); 326 return err; 327} 328 329static int 330netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot) 331{ 332 u32 val, timeout; 333 334 if (first_boot == 0x55555555) { 335 /* This is the first boot after power up */ 336 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC); 337 338 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id)) 339 return 0; 340 341 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4)); 342 if (!(first_boot & 0x4)) { 343 first_boot |= 0x4; 344 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot); 345 NXRD32(adapter, NETXEN_PCIE_REG(0x4)); 346 } 347 348 /* This is the first boot after power up */ 349 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET); 350 if (first_boot != 0x80000f) { 351 /* clear the register for future unloads/loads */ 352 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0); 353 return -EIO; 354 } 355 356 /* Start P2 boot loader */ 357 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE); 358 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1); 359 timeout = 0; 360 do { 361 msleep(1); 362 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc)); 363 364 if (++timeout > 5000) 365 return -EIO; 366 367 } while (val == NETXEN_BDINFO_MAGIC); 368 } 369 return 0; 370} 371 372static void netxen_set_port_mode(struct netxen_adapter *adapter) 373{ 374 u32 val, data; 375 376 val = adapter->ahw.board_type; 377 if ((val == NETXEN_BRDTYPE_P3_HMEZ) || 378 (val == NETXEN_BRDTYPE_P3_XG_LOM)) { 379 if (port_mode == NETXEN_PORT_MODE_802_3_AP) { 380 data = NETXEN_PORT_MODE_802_3_AP; 381 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); 382 } else if (port_mode == NETXEN_PORT_MODE_XG) { 383 data = NETXEN_PORT_MODE_XG; 384 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); 385 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) { 386 data = NETXEN_PORT_MODE_AUTO_NEG_1G; 387 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); 388 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) { 389 data = NETXEN_PORT_MODE_AUTO_NEG_XG; 390 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); 391 } else { 392 data = NETXEN_PORT_MODE_AUTO_NEG; 393 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); 394 } 395 396 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) && 397 (wol_port_mode != NETXEN_PORT_MODE_XG) && 398 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) && 399 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) { 400 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG; 401 } 402 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode); 403 } 404} 405 406static void netxen_set_msix_bit(struct pci_dev *pdev, int enable) 407{ 408 u32 control; 409 int pos; 410 411 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX); 412 if (pos) { 413 pci_read_config_dword(pdev, pos, &control); 414 if (enable) 415 control |= PCI_MSIX_FLAGS_ENABLE; 416 else 417 control = 0; 418 pci_write_config_dword(pdev, pos, control); 419 } 420} 421 422static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count) 423{ 424 int i; 425 426 for (i = 0; i < count; i++) 427 adapter->msix_entries[i].entry = i; 428} 429 430static int 431netxen_read_mac_addr(struct netxen_adapter *adapter) 432{ 433 int i; 434 unsigned char *p; 435 u64 mac_addr; 436 struct net_device *netdev = adapter->netdev; 437 struct pci_dev *pdev = adapter->pdev; 438 439 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 440 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0) 441 return -EIO; 442 } else { 443 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0) 444 return -EIO; 445 } 446 447 p = (unsigned char *)&mac_addr; 448 for (i = 0; i < 6; i++) 449 netdev->dev_addr[i] = *(p + 5 - i); 450 451 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len); 452 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len); 453 454 /* set station address */ 455 456 if (!is_valid_ether_addr(netdev->perm_addr)) 457 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr); 458 459 return 0; 460} 461 462int netxen_nic_set_mac(struct net_device *netdev, void *p) 463{ 464 struct netxen_adapter *adapter = netdev_priv(netdev); 465 struct sockaddr *addr = p; 466 467 if (!is_valid_ether_addr(addr->sa_data)) 468 return -EINVAL; 469 470 if (netif_running(netdev)) { 471 netif_device_detach(netdev); 472 netxen_napi_disable(adapter); 473 } 474 475 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len); 476 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); 477 adapter->macaddr_set(adapter, addr->sa_data); 478 479 if (netif_running(netdev)) { 480 netif_device_attach(netdev); 481 netxen_napi_enable(adapter); 482 } 483 return 0; 484} 485 486static void netxen_set_multicast_list(struct net_device *dev) 487{ 488 struct netxen_adapter *adapter = netdev_priv(dev); 489 490 adapter->set_multi(dev); 491} 492 493static const struct net_device_ops netxen_netdev_ops = { 494 .ndo_open = netxen_nic_open, 495 .ndo_stop = netxen_nic_close, 496 .ndo_start_xmit = netxen_nic_xmit_frame, 497 .ndo_get_stats = netxen_nic_get_stats, 498 .ndo_validate_addr = eth_validate_addr, 499 .ndo_set_multicast_list = netxen_set_multicast_list, 500 .ndo_set_mac_address = netxen_nic_set_mac, 501 .ndo_change_mtu = netxen_nic_change_mtu, 502 .ndo_tx_timeout = netxen_tx_timeout, 503#ifdef CONFIG_NET_POLL_CONTROLLER 504 .ndo_poll_controller = netxen_nic_poll_controller, 505#endif 506}; 507 508static void 509netxen_setup_intr(struct netxen_adapter *adapter) 510{ 511 struct netxen_legacy_intr_set *legacy_intrp; 512 struct pci_dev *pdev = adapter->pdev; 513 int err, num_msix; 514 515 if (adapter->rss_supported) { 516 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ? 517 MSIX_ENTRIES_PER_ADAPTER : 2; 518 } else 519 num_msix = 1; 520 521 adapter->max_sds_rings = 1; 522 523 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED); 524 525 if (adapter->ahw.revision_id >= NX_P3_B0) 526 legacy_intrp = &legacy_intr[adapter->ahw.pci_func]; 527 else 528 legacy_intrp = &legacy_intr[0]; 529 530 adapter->int_vec_bit = legacy_intrp->int_vec_bit; 531 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, 532 legacy_intrp->tgt_status_reg); 533 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter, 534 legacy_intrp->tgt_mask_reg); 535 adapter->pci_int_reg = netxen_get_ioaddr(adapter, 536 legacy_intrp->pci_int_reg); 537 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR); 538 539 if (adapter->ahw.revision_id >= NX_P3_B1) 540 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter, 541 ISR_INT_STATE_REG); 542 else 543 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter, 544 CRB_INT_VECTOR); 545 546 netxen_set_msix_bit(pdev, 0); 547 548 if (adapter->msix_supported) { 549 550 netxen_init_msix_entries(adapter, num_msix); 551 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix); 552 if (err == 0) { 553 adapter->flags |= NETXEN_NIC_MSIX_ENABLED; 554 netxen_set_msix_bit(pdev, 1); 555 556 if (adapter->rss_supported) 557 adapter->max_sds_rings = num_msix; 558 559 dev_info(&pdev->dev, "using msi-x interrupts\n"); 560 return; 561 } 562 563 if (err > 0) 564 pci_disable_msix(pdev); 565 566 /* fall through for msi */ 567 } 568 569 if (use_msi && !pci_enable_msi(pdev)) { 570 adapter->flags |= NETXEN_NIC_MSI_ENABLED; 571 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, 572 msi_tgt_status[adapter->ahw.pci_func]); 573 dev_info(&pdev->dev, "using msi interrupts\n"); 574 adapter->msix_entries[0].vector = pdev->irq; 575 return; 576 } 577 578 dev_info(&pdev->dev, "using legacy interrupts\n"); 579 adapter->msix_entries[0].vector = pdev->irq; 580} 581 582static void 583netxen_teardown_intr(struct netxen_adapter *adapter) 584{ 585 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) 586 pci_disable_msix(adapter->pdev); 587 if (adapter->flags & NETXEN_NIC_MSI_ENABLED) 588 pci_disable_msi(adapter->pdev); 589} 590 591static void 592netxen_cleanup_pci_map(struct netxen_adapter *adapter) 593{ 594 if (adapter->ahw.db_base != NULL) 595 iounmap(adapter->ahw.db_base); 596 if (adapter->ahw.pci_base0 != NULL) 597 iounmap(adapter->ahw.pci_base0); 598 if (adapter->ahw.pci_base1 != NULL) 599 iounmap(adapter->ahw.pci_base1); 600 if (adapter->ahw.pci_base2 != NULL) 601 iounmap(adapter->ahw.pci_base2); 602} 603 604static int 605netxen_setup_pci_map(struct netxen_adapter *adapter) 606{ 607 void __iomem *db_ptr = NULL; 608 609 resource_size_t mem_base, db_base; 610 unsigned long mem_len, db_len = 0; 611 612 struct pci_dev *pdev = adapter->pdev; 613 int pci_func = adapter->ahw.pci_func; 614 struct netxen_hardware_context *ahw = &adapter->ahw; 615 616 int err = 0; 617 618 /* 619 * Set the CRB window to invalid. If any register in window 0 is 620 * accessed it should set the window to 0 and then reset it to 1. 621 */ 622 adapter->ahw.crb_win = -1; 623 adapter->ahw.ocm_win = -1; 624 625 /* remap phys address */ 626 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ 627 mem_len = pci_resource_len(pdev, 0); 628 629 /* 128 Meg of memory */ 630 if (mem_len == NETXEN_PCI_128MB_SIZE) { 631 632 ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE); 633 ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START, 634 SECOND_PAGE_GROUP_SIZE); 635 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START, 636 THIRD_PAGE_GROUP_SIZE); 637 if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL || 638 ahw->pci_base2 == NULL) { 639 dev_err(&pdev->dev, "failed to map PCI bar 0\n"); 640 err = -EIO; 641 goto err_out; 642 } 643 644 ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE; 645 646 } else if (mem_len == NETXEN_PCI_32MB_SIZE) { 647 648 ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE); 649 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START - 650 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE); 651 if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) { 652 dev_err(&pdev->dev, "failed to map PCI bar 0\n"); 653 err = -EIO; 654 goto err_out; 655 } 656 657 } else if (mem_len == NETXEN_PCI_2MB_SIZE) { 658 659 ahw->pci_base0 = pci_ioremap_bar(pdev, 0); 660 if (ahw->pci_base0 == NULL) { 661 dev_err(&pdev->dev, "failed to map PCI bar 0\n"); 662 return -EIO; 663 } 664 ahw->pci_len0 = mem_len; 665 } else { 666 return -EIO; 667 } 668 669 netxen_setup_hwops(adapter); 670 671 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20)); 672 673 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) { 674 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter, 675 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func))); 676 677 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 678 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter, 679 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func))); 680 } 681 682 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 683 goto skip_doorbell; 684 685 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ 686 db_len = pci_resource_len(pdev, 4); 687 688 if (db_len == 0) { 689 printk(KERN_ERR "%s: doorbell is disabled\n", 690 netxen_nic_driver_name); 691 err = -EIO; 692 goto err_out; 693 } 694 695 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES); 696 if (!db_ptr) { 697 printk(KERN_ERR "%s: Failed to allocate doorbell map.", 698 netxen_nic_driver_name); 699 err = -EIO; 700 goto err_out; 701 } 702 703skip_doorbell: 704 adapter->ahw.db_base = db_ptr; 705 adapter->ahw.db_len = db_len; 706 return 0; 707 708err_out: 709 netxen_cleanup_pci_map(adapter); 710 return err; 711} 712 713static void 714netxen_check_options(struct netxen_adapter *adapter) 715{ 716 u32 fw_major, fw_minor, fw_build; 717 char brd_name[NETXEN_MAX_SHORT_NAME]; 718 char serial_num[32]; 719 int i, offset, val; 720 int *ptr32; 721 struct pci_dev *pdev = adapter->pdev; 722 723 adapter->driver_mismatch = 0; 724 725 ptr32 = (int *)&serial_num; 726 offset = NX_FW_SERIAL_NUM_OFFSET; 727 for (i = 0; i < 8; i++) { 728 if (netxen_rom_fast_read(adapter, offset, &val) == -1) { 729 dev_err(&pdev->dev, "error reading board info\n"); 730 adapter->driver_mismatch = 1; 731 return; 732 } 733 ptr32[i] = cpu_to_le32(val); 734 offset += sizeof(u32); 735 } 736 737 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR); 738 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR); 739 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB); 740 741 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build); 742 743 if (adapter->portnum == 0) { 744 get_brd_name_by_type(adapter->ahw.board_type, brd_name); 745 746 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n", 747 module_name(THIS_MODULE), 748 brd_name, serial_num, adapter->ahw.revision_id); 749 } 750 751 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) { 752 adapter->driver_mismatch = 1; 753 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n", 754 fw_major, fw_minor, fw_build); 755 return; 756 } 757 758 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 759 i = NXRD32(adapter, NETXEN_SRE_MISC); 760 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0; 761 } 762 763 dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n", 764 fw_major, fw_minor, fw_build, 765 adapter->ahw.cut_through ? "cut-through" : "legacy"); 766 767 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222)) 768 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1); 769 770 adapter->flags &= ~NETXEN_NIC_LRO_ENABLED; 771 772 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) { 773 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G; 774 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G; 775 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) { 776 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G; 777 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G; 778 } 779 780 adapter->msix_supported = 0; 781 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 782 adapter->msix_supported = !!use_msi_x; 783 adapter->rss_supported = !!use_msi_x; 784 } else { 785 u32 flashed_ver = 0; 786 netxen_rom_fast_read(adapter, 787 NX_FW_VERSION_OFFSET, (int *)&flashed_ver); 788 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver); 789 790 if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) { 791 switch (adapter->ahw.board_type) { 792 case NETXEN_BRDTYPE_P2_SB31_10G: 793 case NETXEN_BRDTYPE_P2_SB31_10G_CX4: 794 adapter->msix_supported = !!use_msi_x; 795 adapter->rss_supported = !!use_msi_x; 796 break; 797 default: 798 break; 799 } 800 } 801 } 802 803 adapter->num_txd = MAX_CMD_DESCRIPTORS; 804 805 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 806 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS; 807 adapter->max_rds_rings = 3; 808 } else { 809 adapter->num_lro_rxd = 0; 810 adapter->max_rds_rings = 2; 811 } 812} 813 814static int 815netxen_start_firmware(struct netxen_adapter *adapter) 816{ 817 int val, err, first_boot; 818 struct pci_dev *pdev = adapter->pdev; 819 820 /* required for NX2031 dummy dma */ 821 err = nx_set_dma_mask(adapter); 822 if (err) 823 return err; 824 825 if (!netxen_can_start_firmware(adapter)) 826 goto wait_init; 827 828 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc)); 829 830 err = netxen_check_hw_init(adapter, first_boot); 831 if (err) { 832 dev_err(&pdev->dev, "error in init HW init sequence\n"); 833 return err; 834 } 835 836 netxen_request_firmware(adapter); 837 838 err = netxen_need_fw_reset(adapter); 839 if (err < 0) 840 goto err_out; 841 if (err == 0) 842 goto wait_init; 843 844 if (first_boot != 0x55555555) { 845 NXWR32(adapter, CRB_CMDPEG_STATE, 0); 846 netxen_pinit_from_rom(adapter); 847 msleep(1); 848 } 849 850 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555); 851 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0); 852 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0); 853 854 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 855 netxen_set_port_mode(adapter); 856 857 err = netxen_load_firmware(adapter); 858 if (err) 859 goto err_out; 860 861 netxen_release_firmware(adapter); 862 863 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 864 865 /* Initialize multicast addr pool owners */ 866 val = 0x7654; 867 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) 868 val |= 0x0f000000; 869 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val); 870 871 } 872 873 err = netxen_init_dummy_dma(adapter); 874 if (err) 875 goto err_out; 876 877 /* 878 * Tell the hardware our version number. 879 */ 880 val = (_NETXEN_NIC_LINUX_MAJOR << 16) 881 | ((_NETXEN_NIC_LINUX_MINOR << 8)) 882 | (_NETXEN_NIC_LINUX_SUBVERSION); 883 NXWR32(adapter, CRB_DRIVER_VERSION, val); 884 885wait_init: 886 /* Handshake with the card before we register the devices. */ 887 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE); 888 if (err) { 889 netxen_free_dummy_dma(adapter); 890 goto err_out; 891 } 892 893 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY); 894 895 nx_update_dma_mask(adapter); 896 897 netxen_check_options(adapter); 898 899 adapter->need_fw_reset = 0; 900 901 /* fall through and release firmware */ 902 903err_out: 904 netxen_release_firmware(adapter); 905 return err; 906} 907 908static int 909netxen_nic_request_irq(struct netxen_adapter *adapter) 910{ 911 irq_handler_t handler; 912 struct nx_host_sds_ring *sds_ring; 913 int err, ring; 914 915 unsigned long flags = IRQF_SAMPLE_RANDOM; 916 struct net_device *netdev = adapter->netdev; 917 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 918 919 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) 920 handler = netxen_msix_intr; 921 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED) 922 handler = netxen_msi_intr; 923 else { 924 flags |= IRQF_SHARED; 925 handler = netxen_intr; 926 } 927 adapter->irq = netdev->irq; 928 929 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 930 sds_ring = &recv_ctx->sds_rings[ring]; 931 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring); 932 err = request_irq(sds_ring->irq, handler, 933 flags, sds_ring->name, sds_ring); 934 if (err) 935 return err; 936 } 937 938 return 0; 939} 940 941static void 942netxen_nic_free_irq(struct netxen_adapter *adapter) 943{ 944 int ring; 945 struct nx_host_sds_ring *sds_ring; 946 947 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 948 949 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 950 sds_ring = &recv_ctx->sds_rings[ring]; 951 free_irq(sds_ring->irq, sds_ring); 952 } 953} 954 955static void 956netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter) 957{ 958 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT; 959 adapter->coal.normal.data.rx_time_us = 960 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US; 961 adapter->coal.normal.data.rx_packets = 962 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS; 963 adapter->coal.normal.data.tx_time_us = 964 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US; 965 adapter->coal.normal.data.tx_packets = 966 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS; 967} 968 969/* with rtnl_lock */ 970static int 971__netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev) 972{ 973 int err; 974 975 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 976 return -EIO; 977 978 err = adapter->init_port(adapter, adapter->physical_port); 979 if (err) { 980 printk(KERN_ERR "%s: Failed to initialize port %d\n", 981 netxen_nic_driver_name, adapter->portnum); 982 return err; 983 } 984 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 985 adapter->macaddr_set(adapter, adapter->mac_addr); 986 987 adapter->set_multi(netdev); 988 adapter->set_mtu(adapter, netdev->mtu); 989 990 adapter->ahw.linkup = 0; 991 992 if (adapter->max_sds_rings > 1) 993 netxen_config_rss(adapter, 1); 994 995 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 996 netxen_config_intr_coalesce(adapter); 997 998 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO) 999 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED); 1000 1001 netxen_napi_enable(adapter); 1002 1003 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION) 1004 netxen_linkevent_request(adapter, 1); 1005 else 1006 netxen_nic_set_link_parameters(adapter); 1007 1008 set_bit(__NX_DEV_UP, &adapter->state); 1009 return 0; 1010} 1011 1012/* Usage: During resume and firmware recovery module.*/ 1013 1014static inline int 1015netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev) 1016{ 1017 int err = 0; 1018 1019 rtnl_lock(); 1020 if (netif_running(netdev)) 1021 err = __netxen_nic_up(adapter, netdev); 1022 rtnl_unlock(); 1023 1024 return err; 1025} 1026 1027/* with rtnl_lock */ 1028static void 1029__netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) 1030{ 1031 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 1032 return; 1033 1034 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state)) 1035 return; 1036 1037 smp_mb(); 1038 spin_lock(&adapter->tx_clean_lock); 1039 netif_carrier_off(netdev); 1040 netif_tx_disable(netdev); 1041 1042 if (adapter->stop_port) 1043 adapter->stop_port(adapter); 1044 1045 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1046 netxen_p3_free_mac_list(adapter); 1047 1048 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE); 1049 1050 netxen_napi_disable(adapter); 1051 1052 netxen_release_tx_buffers(adapter); 1053 spin_unlock(&adapter->tx_clean_lock); 1054} 1055 1056/* Usage: During suspend and firmware recovery module */ 1057 1058static inline void 1059netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) 1060{ 1061 rtnl_lock(); 1062 if (netif_running(netdev)) 1063 __netxen_nic_down(adapter, netdev); 1064 rtnl_unlock(); 1065 1066} 1067 1068static int 1069netxen_nic_attach(struct netxen_adapter *adapter) 1070{ 1071 struct net_device *netdev = adapter->netdev; 1072 struct pci_dev *pdev = adapter->pdev; 1073 int err, ring; 1074 struct nx_host_rds_ring *rds_ring; 1075 struct nx_host_tx_ring *tx_ring; 1076 1077 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) 1078 return 0; 1079 1080 err = netxen_init_firmware(adapter); 1081 if (err) 1082 return err; 1083 1084 err = netxen_napi_add(adapter, netdev); 1085 if (err) 1086 return err; 1087 1088 err = netxen_alloc_sw_resources(adapter); 1089 if (err) { 1090 printk(KERN_ERR "%s: Error in setting sw resources\n", 1091 netdev->name); 1092 return err; 1093 } 1094 1095 err = netxen_alloc_hw_resources(adapter); 1096 if (err) { 1097 printk(KERN_ERR "%s: Error in setting hw resources\n", 1098 netdev->name); 1099 goto err_out_free_sw; 1100 } 1101 1102 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 1103 tx_ring = adapter->tx_ring; 1104 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter, 1105 crb_cmd_producer[adapter->portnum]); 1106 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter, 1107 crb_cmd_consumer[adapter->portnum]); 1108 1109 tx_ring->producer = 0; 1110 tx_ring->sw_consumer = 0; 1111 1112 netxen_nic_update_cmd_producer(adapter, tx_ring); 1113 netxen_nic_update_cmd_consumer(adapter, tx_ring); 1114 } 1115 1116 for (ring = 0; ring < adapter->max_rds_rings; ring++) { 1117 rds_ring = &adapter->recv_ctx.rds_rings[ring]; 1118 netxen_post_rx_buffers(adapter, ring, rds_ring); 1119 } 1120 1121 err = netxen_nic_request_irq(adapter); 1122 if (err) { 1123 dev_err(&pdev->dev, "%s: failed to setup interrupt\n", 1124 netdev->name); 1125 goto err_out_free_rxbuf; 1126 } 1127 1128 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1129 netxen_nic_init_coalesce_defaults(adapter); 1130 1131 netxen_create_sysfs_entries(adapter); 1132 1133 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC; 1134 return 0; 1135 1136err_out_free_rxbuf: 1137 netxen_release_rx_buffers(adapter); 1138 netxen_free_hw_resources(adapter); 1139err_out_free_sw: 1140 netxen_free_sw_resources(adapter); 1141 return err; 1142} 1143 1144static void 1145netxen_nic_detach(struct netxen_adapter *adapter) 1146{ 1147 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 1148 return; 1149 1150 netxen_remove_sysfs_entries(adapter); 1151 1152 netxen_free_hw_resources(adapter); 1153 netxen_release_rx_buffers(adapter); 1154 netxen_nic_free_irq(adapter); 1155 netxen_napi_del(adapter); 1156 netxen_free_sw_resources(adapter); 1157 1158 adapter->is_up = 0; 1159} 1160 1161int 1162netxen_nic_reset_context(struct netxen_adapter *adapter) 1163{ 1164 int err = 0; 1165 struct net_device *netdev = adapter->netdev; 1166 1167 if (test_and_set_bit(__NX_RESETTING, &adapter->state)) 1168 return -EBUSY; 1169 1170 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { 1171 1172 netif_device_detach(netdev); 1173 1174 if (netif_running(netdev)) 1175 __netxen_nic_down(adapter, netdev); 1176 1177 netxen_nic_detach(adapter); 1178 1179 if (netif_running(netdev)) { 1180 err = netxen_nic_attach(adapter); 1181 if (!err) 1182 err = __netxen_nic_up(adapter, netdev); 1183 1184 if (err) 1185 goto done; 1186 } 1187 1188 netif_device_attach(netdev); 1189 } 1190 1191done: 1192 clear_bit(__NX_RESETTING, &adapter->state); 1193 return err; 1194} 1195 1196static int 1197netxen_setup_netdev(struct netxen_adapter *adapter, 1198 struct net_device *netdev) 1199{ 1200 int err = 0; 1201 struct pci_dev *pdev = adapter->pdev; 1202 1203 adapter->rx_csum = 1; 1204 adapter->mc_enabled = 0; 1205 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1206 adapter->max_mc_count = 38; 1207 else 1208 adapter->max_mc_count = 16; 1209 1210 netdev->netdev_ops = &netxen_netdev_ops; 1211 netdev->watchdog_timeo = 2*HZ; 1212 1213 netxen_nic_change_mtu(netdev, netdev->mtu); 1214 1215 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops); 1216 1217 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO); 1218 netdev->features |= (NETIF_F_GRO); 1219 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO); 1220 1221 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 1222 netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6); 1223 netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6); 1224 } 1225 1226 if (adapter->pci_using_dac) { 1227 netdev->features |= NETIF_F_HIGHDMA; 1228 netdev->vlan_features |= NETIF_F_HIGHDMA; 1229 } 1230 1231 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX) 1232 netdev->features |= (NETIF_F_HW_VLAN_TX); 1233 1234 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO) 1235 netdev->features |= NETIF_F_LRO; 1236 1237 netdev->irq = adapter->msix_entries[0].vector; 1238 1239 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task); 1240 1241 if (netxen_read_mac_addr(adapter)) 1242 dev_warn(&pdev->dev, "failed to read mac addr\n"); 1243 1244 netif_carrier_off(netdev); 1245 netif_stop_queue(netdev); 1246 1247 err = register_netdev(netdev); 1248 if (err) { 1249 dev_err(&pdev->dev, "failed to register net device\n"); 1250 return err; 1251 } 1252 1253 return 0; 1254} 1255 1256static int __devinit 1257netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 1258{ 1259 struct net_device *netdev = NULL; 1260 struct netxen_adapter *adapter = NULL; 1261 int i = 0, err; 1262 int pci_func_id = PCI_FUNC(pdev->devfn); 1263 uint8_t revision_id; 1264 1265 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) { 1266 pr_warning("%s: chip revisions between 0x%x-0x%x " 1267 "will not be enabled.\n", 1268 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1); 1269 return -ENODEV; 1270 } 1271 1272 if ((err = pci_enable_device(pdev))) 1273 return err; 1274 1275 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { 1276 err = -ENODEV; 1277 goto err_out_disable_pdev; 1278 } 1279 1280 if ((err = pci_request_regions(pdev, netxen_nic_driver_name))) 1281 goto err_out_disable_pdev; 1282 1283 if (NX_IS_REVISION_P3(pdev->revision)) 1284 pci_enable_pcie_error_reporting(pdev); 1285 1286 pci_set_master(pdev); 1287 1288 netdev = alloc_etherdev(sizeof(struct netxen_adapter)); 1289 if(!netdev) { 1290 dev_err(&pdev->dev, "failed to allocate net_device\n"); 1291 err = -ENOMEM; 1292 goto err_out_free_res; 1293 } 1294 1295 SET_NETDEV_DEV(netdev, &pdev->dev); 1296 1297 adapter = netdev_priv(netdev); 1298 adapter->netdev = netdev; 1299 adapter->pdev = pdev; 1300 adapter->ahw.pci_func = pci_func_id; 1301 1302 revision_id = pdev->revision; 1303 adapter->ahw.revision_id = revision_id; 1304 1305 rwlock_init(&adapter->ahw.crb_lock); 1306 spin_lock_init(&adapter->ahw.mem_lock); 1307 1308 spin_lock_init(&adapter->tx_clean_lock); 1309 INIT_LIST_HEAD(&adapter->mac_list); 1310 1311 err = netxen_setup_pci_map(adapter); 1312 if (err) 1313 goto err_out_free_netdev; 1314 1315 /* This will be reset for mezz cards */ 1316 adapter->portnum = pci_func_id; 1317 1318 err = netxen_nic_get_board_info(adapter); 1319 if (err) { 1320 dev_err(&pdev->dev, "Error getting board config info.\n"); 1321 goto err_out_iounmap; 1322 } 1323 1324 /* Mezz cards have PCI function 0,2,3 enabled */ 1325 switch (adapter->ahw.board_type) { 1326 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ: 1327 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ: 1328 if (pci_func_id >= 2) 1329 adapter->portnum = pci_func_id - 2; 1330 break; 1331 default: 1332 break; 1333 } 1334 1335 err = netxen_start_firmware(adapter); 1336 if (err) 1337 goto err_out_decr_ref; 1338 1339 /* 1340 * See if the firmware gave us a virtual-physical port mapping. 1341 */ 1342 adapter->physical_port = adapter->portnum; 1343 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 1344 i = NXRD32(adapter, CRB_V2P(adapter->portnum)); 1345 if (i != 0x55555555) 1346 adapter->physical_port = i; 1347 } 1348 1349 netxen_nic_clear_stats(adapter); 1350 1351 netxen_setup_intr(adapter); 1352 1353 err = netxen_setup_netdev(adapter, netdev); 1354 if (err) 1355 goto err_out_disable_msi; 1356 1357 pci_set_drvdata(pdev, adapter); 1358 1359 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 1360 1361 switch (adapter->ahw.port_type) { 1362 case NETXEN_NIC_GBE: 1363 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n", 1364 adapter->netdev->name); 1365 break; 1366 case NETXEN_NIC_XGBE: 1367 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n", 1368 adapter->netdev->name); 1369 break; 1370 } 1371 1372 netxen_create_diag_entries(adapter); 1373 1374 return 0; 1375 1376err_out_disable_msi: 1377 netxen_teardown_intr(adapter); 1378 1379 netxen_free_dummy_dma(adapter); 1380 1381err_out_decr_ref: 1382 nx_decr_dev_ref_cnt(adapter); 1383 1384err_out_iounmap: 1385 netxen_cleanup_pci_map(adapter); 1386 1387err_out_free_netdev: 1388 free_netdev(netdev); 1389 1390err_out_free_res: 1391 pci_release_regions(pdev); 1392 1393err_out_disable_pdev: 1394 pci_set_drvdata(pdev, NULL); 1395 pci_disable_device(pdev); 1396 return err; 1397} 1398 1399static void __devexit netxen_nic_remove(struct pci_dev *pdev) 1400{ 1401 struct netxen_adapter *adapter; 1402 struct net_device *netdev; 1403 1404 adapter = pci_get_drvdata(pdev); 1405 if (adapter == NULL) 1406 return; 1407 1408 netdev = adapter->netdev; 1409 1410 netxen_cancel_fw_work(adapter); 1411 1412 unregister_netdev(netdev); 1413 1414 cancel_work_sync(&adapter->tx_timeout_task); 1415 1416 netxen_nic_detach(adapter); 1417 1418 nx_decr_dev_ref_cnt(adapter); 1419 1420 if (adapter->portnum == 0) 1421 netxen_free_dummy_dma(adapter); 1422 1423 clear_bit(__NX_RESETTING, &adapter->state); 1424 1425 netxen_teardown_intr(adapter); 1426 1427 netxen_remove_diag_entries(adapter); 1428 1429 netxen_cleanup_pci_map(adapter); 1430 1431 netxen_release_firmware(adapter); 1432 1433 if (NX_IS_REVISION_P3(pdev->revision)) 1434 pci_disable_pcie_error_reporting(pdev); 1435 1436 pci_release_regions(pdev); 1437 pci_disable_device(pdev); 1438 pci_set_drvdata(pdev, NULL); 1439 1440 free_netdev(netdev); 1441} 1442 1443static void netxen_nic_detach_func(struct netxen_adapter *adapter) 1444{ 1445 struct net_device *netdev = adapter->netdev; 1446 1447 netif_device_detach(netdev); 1448 1449 netxen_cancel_fw_work(adapter); 1450 1451 if (netif_running(netdev)) 1452 netxen_nic_down(adapter, netdev); 1453 1454 cancel_work_sync(&adapter->tx_timeout_task); 1455 1456 netxen_nic_detach(adapter); 1457 1458 if (adapter->portnum == 0) 1459 netxen_free_dummy_dma(adapter); 1460 1461 nx_decr_dev_ref_cnt(adapter); 1462 1463 clear_bit(__NX_RESETTING, &adapter->state); 1464} 1465 1466static int netxen_nic_attach_func(struct pci_dev *pdev) 1467{ 1468 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1469 struct net_device *netdev = adapter->netdev; 1470 int err; 1471 1472 err = pci_enable_device(pdev); 1473 if (err) 1474 return err; 1475 1476 pci_set_power_state(pdev, PCI_D0); 1477 pci_set_master(pdev); 1478 pci_restore_state(pdev); 1479 1480 adapter->ahw.crb_win = -1; 1481 adapter->ahw.ocm_win = -1; 1482 1483 err = netxen_start_firmware(adapter); 1484 if (err) { 1485 dev_err(&pdev->dev, "failed to start firmware\n"); 1486 return err; 1487 } 1488 1489 if (netif_running(netdev)) { 1490 err = netxen_nic_attach(adapter); 1491 if (err) 1492 goto err_out; 1493 1494 err = netxen_nic_up(adapter, netdev); 1495 if (err) 1496 goto err_out_detach; 1497 1498 netxen_config_indev_addr(netdev, NETDEV_UP); 1499 } 1500 1501 netif_device_attach(netdev); 1502 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 1503 return 0; 1504 1505err_out_detach: 1506 netxen_nic_detach(adapter); 1507err_out: 1508 nx_decr_dev_ref_cnt(adapter); 1509 return err; 1510} 1511 1512static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev, 1513 pci_channel_state_t state) 1514{ 1515 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1516 1517 if (state == pci_channel_io_perm_failure) 1518 return PCI_ERS_RESULT_DISCONNECT; 1519 1520 if (nx_dev_request_aer(adapter)) 1521 return PCI_ERS_RESULT_RECOVERED; 1522 1523 netxen_nic_detach_func(adapter); 1524 1525 pci_disable_device(pdev); 1526 1527 return PCI_ERS_RESULT_NEED_RESET; 1528} 1529 1530static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev) 1531{ 1532 int err = 0; 1533 1534 err = netxen_nic_attach_func(pdev); 1535 1536 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED; 1537} 1538 1539static void netxen_io_resume(struct pci_dev *pdev) 1540{ 1541 pci_cleanup_aer_uncorrect_error_status(pdev); 1542} 1543 1544static void netxen_nic_shutdown(struct pci_dev *pdev) 1545{ 1546 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1547 1548 netxen_nic_detach_func(adapter); 1549 1550 if (pci_save_state(pdev)) 1551 return; 1552 1553 if (netxen_nic_wol_supported(adapter)) { 1554 pci_enable_wake(pdev, PCI_D3cold, 1); 1555 pci_enable_wake(pdev, PCI_D3hot, 1); 1556 } 1557 1558 pci_disable_device(pdev); 1559} 1560 1561#ifdef CONFIG_PM 1562static int 1563netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state) 1564{ 1565 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1566 int retval; 1567 1568 netxen_nic_detach_func(adapter); 1569 1570 retval = pci_save_state(pdev); 1571 if (retval) 1572 return retval; 1573 1574 if (netxen_nic_wol_supported(adapter)) { 1575 pci_enable_wake(pdev, PCI_D3cold, 1); 1576 pci_enable_wake(pdev, PCI_D3hot, 1); 1577 } 1578 1579 pci_disable_device(pdev); 1580 pci_set_power_state(pdev, pci_choose_state(pdev, state)); 1581 1582 return 0; 1583} 1584 1585static int 1586netxen_nic_resume(struct pci_dev *pdev) 1587{ 1588 return netxen_nic_attach_func(pdev); 1589} 1590#endif 1591 1592static int netxen_nic_open(struct net_device *netdev) 1593{ 1594 struct netxen_adapter *adapter = netdev_priv(netdev); 1595 int err = 0; 1596 1597 if (adapter->driver_mismatch) 1598 return -EIO; 1599 1600 err = netxen_nic_attach(adapter); 1601 if (err) 1602 return err; 1603 1604 err = __netxen_nic_up(adapter, netdev); 1605 if (err) 1606 goto err_out; 1607 1608 netif_start_queue(netdev); 1609 1610 return 0; 1611 1612err_out: 1613 netxen_nic_detach(adapter); 1614 return err; 1615} 1616 1617/* 1618 * netxen_nic_close - Disables a network interface entry point 1619 */ 1620static int netxen_nic_close(struct net_device *netdev) 1621{ 1622 struct netxen_adapter *adapter = netdev_priv(netdev); 1623 1624 __netxen_nic_down(adapter, netdev); 1625 return 0; 1626} 1627 1628static void 1629netxen_tso_check(struct net_device *netdev, 1630 struct nx_host_tx_ring *tx_ring, 1631 struct cmd_desc_type0 *first_desc, 1632 struct sk_buff *skb) 1633{ 1634 u8 opcode = TX_ETHER_PKT; 1635 __be16 protocol = skb->protocol; 1636 u16 flags = 0, vid = 0; 1637 u32 producer; 1638 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0; 1639 struct cmd_desc_type0 *hwdesc; 1640 struct vlan_ethhdr *vh; 1641 1642 if (protocol == cpu_to_be16(ETH_P_8021Q)) { 1643 1644 vh = (struct vlan_ethhdr *)skb->data; 1645 protocol = vh->h_vlan_encapsulated_proto; 1646 flags = FLAGS_VLAN_TAGGED; 1647 1648 } else if (vlan_tx_tag_present(skb)) { 1649 1650 flags = FLAGS_VLAN_OOB; 1651 vid = vlan_tx_tag_get(skb); 1652 netxen_set_tx_vlan_tci(first_desc, vid); 1653 vlan_oob = 1; 1654 } 1655 1656 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) && 1657 skb_shinfo(skb)->gso_size > 0) { 1658 1659 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); 1660 1661 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); 1662 first_desc->total_hdr_length = hdr_len; 1663 if (vlan_oob) { 1664 first_desc->total_hdr_length += VLAN_HLEN; 1665 first_desc->tcp_hdr_offset = VLAN_HLEN; 1666 first_desc->ip_hdr_offset = VLAN_HLEN; 1667 /* Only in case of TSO on vlan device */ 1668 flags |= FLAGS_VLAN_TAGGED; 1669 } 1670 1671 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ? 1672 TX_TCP_LSO6 : TX_TCP_LSO; 1673 tso = 1; 1674 1675 } else if (skb->ip_summed == CHECKSUM_PARTIAL) { 1676 u8 l4proto; 1677 1678 if (protocol == cpu_to_be16(ETH_P_IP)) { 1679 l4proto = ip_hdr(skb)->protocol; 1680 1681 if (l4proto == IPPROTO_TCP) 1682 opcode = TX_TCP_PKT; 1683 else if(l4proto == IPPROTO_UDP) 1684 opcode = TX_UDP_PKT; 1685 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) { 1686 l4proto = ipv6_hdr(skb)->nexthdr; 1687 1688 if (l4proto == IPPROTO_TCP) 1689 opcode = TX_TCPV6_PKT; 1690 else if(l4proto == IPPROTO_UDP) 1691 opcode = TX_UDPV6_PKT; 1692 } 1693 } 1694 1695 first_desc->tcp_hdr_offset += skb_transport_offset(skb); 1696 first_desc->ip_hdr_offset += skb_network_offset(skb); 1697 netxen_set_tx_flags_opcode(first_desc, flags, opcode); 1698 1699 if (!tso) 1700 return; 1701 1702 /* For LSO, we need to copy the MAC/IP/TCP headers into 1703 * the descriptor ring 1704 */ 1705 producer = tx_ring->producer; 1706 copied = 0; 1707 offset = 2; 1708 1709 if (vlan_oob) { 1710 /* Create a TSO vlan header template for firmware */ 1711 1712 hwdesc = &tx_ring->desc_head[producer]; 1713 tx_ring->cmd_buf_arr[producer].skb = NULL; 1714 1715 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset, 1716 hdr_len + VLAN_HLEN); 1717 1718 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2); 1719 skb_copy_from_linear_data(skb, vh, 12); 1720 vh->h_vlan_proto = htons(ETH_P_8021Q); 1721 vh->h_vlan_TCI = htons(vid); 1722 skb_copy_from_linear_data_offset(skb, 12, 1723 (char *)vh + 16, copy_len - 16); 1724 1725 copied = copy_len - VLAN_HLEN; 1726 offset = 0; 1727 1728 producer = get_next_index(producer, tx_ring->num_desc); 1729 } 1730 1731 while (copied < hdr_len) { 1732 1733 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset, 1734 (hdr_len - copied)); 1735 1736 hwdesc = &tx_ring->desc_head[producer]; 1737 tx_ring->cmd_buf_arr[producer].skb = NULL; 1738 1739 skb_copy_from_linear_data_offset(skb, copied, 1740 (char *)hwdesc + offset, copy_len); 1741 1742 copied += copy_len; 1743 offset = 0; 1744 1745 producer = get_next_index(producer, tx_ring->num_desc); 1746 } 1747 1748 tx_ring->producer = producer; 1749 barrier(); 1750} 1751 1752static int 1753netxen_map_tx_skb(struct pci_dev *pdev, 1754 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf) 1755{ 1756 struct netxen_skb_frag *nf; 1757 struct skb_frag_struct *frag; 1758 int i, nr_frags; 1759 dma_addr_t map; 1760 1761 nr_frags = skb_shinfo(skb)->nr_frags; 1762 nf = &pbuf->frag_array[0]; 1763 1764 map = pci_map_single(pdev, skb->data, 1765 skb_headlen(skb), PCI_DMA_TODEVICE); 1766 if (pci_dma_mapping_error(pdev, map)) 1767 goto out_err; 1768 1769 nf->dma = map; 1770 nf->length = skb_headlen(skb); 1771 1772 for (i = 0; i < nr_frags; i++) { 1773 frag = &skb_shinfo(skb)->frags[i]; 1774 nf = &pbuf->frag_array[i+1]; 1775 1776 map = pci_map_page(pdev, frag->page, frag->page_offset, 1777 frag->size, PCI_DMA_TODEVICE); 1778 if (pci_dma_mapping_error(pdev, map)) 1779 goto unwind; 1780 1781 nf->dma = map; 1782 nf->length = frag->size; 1783 } 1784 1785 return 0; 1786 1787unwind: 1788 while (--i >= 0) { 1789 nf = &pbuf->frag_array[i+1]; 1790 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE); 1791 } 1792 1793 nf = &pbuf->frag_array[0]; 1794 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE); 1795 1796out_err: 1797 return -ENOMEM; 1798} 1799 1800static inline void 1801netxen_clear_cmddesc(u64 *desc) 1802{ 1803 desc[0] = 0ULL; 1804 desc[2] = 0ULL; 1805} 1806 1807static netdev_tx_t 1808netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) 1809{ 1810 struct netxen_adapter *adapter = netdev_priv(netdev); 1811 struct nx_host_tx_ring *tx_ring = adapter->tx_ring; 1812 struct netxen_cmd_buffer *pbuf; 1813 struct netxen_skb_frag *buffrag; 1814 struct cmd_desc_type0 *hwdesc, *first_desc; 1815 struct pci_dev *pdev; 1816 int i, k; 1817 1818 u32 producer; 1819 int frag_count, no_of_desc; 1820 u32 num_txd = tx_ring->num_desc; 1821 1822 frag_count = skb_shinfo(skb)->nr_frags + 1; 1823 1824 /* 4 fragments per cmd des */ 1825 no_of_desc = (frag_count + 3) >> 2; 1826 1827 if (unlikely(no_of_desc + 2 > netxen_tx_avail(tx_ring))) { 1828 netif_stop_queue(netdev); 1829 return NETDEV_TX_BUSY; 1830 } 1831 1832 producer = tx_ring->producer; 1833 pbuf = &tx_ring->cmd_buf_arr[producer]; 1834 1835 pdev = adapter->pdev; 1836 1837 if (netxen_map_tx_skb(pdev, skb, pbuf)) 1838 goto drop_packet; 1839 1840 pbuf->skb = skb; 1841 pbuf->frag_count = frag_count; 1842 1843 first_desc = hwdesc = &tx_ring->desc_head[producer]; 1844 netxen_clear_cmddesc((u64 *)hwdesc); 1845 1846 netxen_set_tx_frags_len(first_desc, frag_count, skb->len); 1847 netxen_set_tx_port(first_desc, adapter->portnum); 1848 1849 for (i = 0; i < frag_count; i++) { 1850 1851 k = i % 4; 1852 1853 if ((k == 0) && (i > 0)) { 1854 /* move to next desc.*/ 1855 producer = get_next_index(producer, num_txd); 1856 hwdesc = &tx_ring->desc_head[producer]; 1857 netxen_clear_cmddesc((u64 *)hwdesc); 1858 tx_ring->cmd_buf_arr[producer].skb = NULL; 1859 } 1860 1861 buffrag = &pbuf->frag_array[i]; 1862 1863 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length); 1864 switch (k) { 1865 case 0: 1866 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma); 1867 break; 1868 case 1: 1869 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma); 1870 break; 1871 case 2: 1872 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma); 1873 break; 1874 case 3: 1875 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma); 1876 break; 1877 } 1878 } 1879 1880 tx_ring->producer = get_next_index(producer, num_txd); 1881 1882 netxen_tso_check(netdev, tx_ring, first_desc, skb); 1883 1884 netxen_nic_update_cmd_producer(adapter, tx_ring); 1885 1886 adapter->stats.txbytes += skb->len; 1887 adapter->stats.xmitcalled++; 1888 1889 return NETDEV_TX_OK; 1890 1891drop_packet: 1892 adapter->stats.txdropped++; 1893 dev_kfree_skb_any(skb); 1894 return NETDEV_TX_OK; 1895} 1896 1897static int netxen_nic_check_temp(struct netxen_adapter *adapter) 1898{ 1899 struct net_device *netdev = adapter->netdev; 1900 uint32_t temp, temp_state, temp_val; 1901 int rv = 0; 1902 1903 temp = NXRD32(adapter, CRB_TEMP_STATE); 1904 1905 temp_state = nx_get_temp_state(temp); 1906 temp_val = nx_get_temp_val(temp); 1907 1908 if (temp_state == NX_TEMP_PANIC) { 1909 printk(KERN_ALERT 1910 "%s: Device temperature %d degrees C exceeds" 1911 " maximum allowed. Hardware has been shut down.\n", 1912 netdev->name, temp_val); 1913 rv = 1; 1914 } else if (temp_state == NX_TEMP_WARN) { 1915 if (adapter->temp == NX_TEMP_NORMAL) { 1916 printk(KERN_ALERT 1917 "%s: Device temperature %d degrees C " 1918 "exceeds operating range." 1919 " Immediate action needed.\n", 1920 netdev->name, temp_val); 1921 } 1922 } else { 1923 if (adapter->temp == NX_TEMP_WARN) { 1924 printk(KERN_INFO 1925 "%s: Device temperature is now %d degrees C" 1926 " in normal range.\n", netdev->name, 1927 temp_val); 1928 } 1929 } 1930 adapter->temp = temp_state; 1931 return rv; 1932} 1933 1934void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup) 1935{ 1936 struct net_device *netdev = adapter->netdev; 1937 1938 if (adapter->ahw.linkup && !linkup) { 1939 printk(KERN_INFO "%s: %s NIC Link is down\n", 1940 netxen_nic_driver_name, netdev->name); 1941 adapter->ahw.linkup = 0; 1942 if (netif_running(netdev)) { 1943 netif_carrier_off(netdev); 1944 netif_stop_queue(netdev); 1945 } 1946 adapter->link_changed = !adapter->has_link_events; 1947 } else if (!adapter->ahw.linkup && linkup) { 1948 printk(KERN_INFO "%s: %s NIC Link is up\n", 1949 netxen_nic_driver_name, netdev->name); 1950 adapter->ahw.linkup = 1; 1951 if (netif_running(netdev)) { 1952 netif_carrier_on(netdev); 1953 netif_wake_queue(netdev); 1954 } 1955 adapter->link_changed = !adapter->has_link_events; 1956 } 1957} 1958 1959static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter) 1960{ 1961 u32 val, port, linkup; 1962 1963 port = adapter->physical_port; 1964 1965 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 1966 val = NXRD32(adapter, CRB_XG_STATE_P3); 1967 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val); 1968 linkup = (val == XG_LINK_UP_P3); 1969 } else { 1970 val = NXRD32(adapter, CRB_XG_STATE); 1971 val = (val >> port*8) & 0xff; 1972 linkup = (val == XG_LINK_UP); 1973 } 1974 1975 netxen_advert_link_change(adapter, linkup); 1976} 1977 1978static void netxen_tx_timeout(struct net_device *netdev) 1979{ 1980 struct netxen_adapter *adapter = netdev_priv(netdev); 1981 1982 if (test_bit(__NX_RESETTING, &adapter->state)) 1983 return; 1984 1985 dev_err(&netdev->dev, "transmit timeout, resetting.\n"); 1986 schedule_work(&adapter->tx_timeout_task); 1987} 1988 1989static void netxen_tx_timeout_task(struct work_struct *work) 1990{ 1991 struct netxen_adapter *adapter = 1992 container_of(work, struct netxen_adapter, tx_timeout_task); 1993 1994 if (!netif_running(adapter->netdev)) 1995 return; 1996 1997 if (test_and_set_bit(__NX_RESETTING, &adapter->state)) 1998 return; 1999 2000 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS) 2001 goto request_reset; 2002 2003 rtnl_lock(); 2004 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 2005 /* try to scrub interrupt */ 2006 netxen_napi_disable(adapter); 2007 2008 netxen_napi_enable(adapter); 2009 2010 netif_wake_queue(adapter->netdev); 2011 2012 clear_bit(__NX_RESETTING, &adapter->state); 2013 } else { 2014 clear_bit(__NX_RESETTING, &adapter->state); 2015 if (netxen_nic_reset_context(adapter)) { 2016 rtnl_unlock(); 2017 goto request_reset; 2018 } 2019 } 2020 adapter->netdev->trans_start = jiffies; 2021 rtnl_unlock(); 2022 return; 2023 2024request_reset: 2025 adapter->need_fw_reset = 1; 2026 clear_bit(__NX_RESETTING, &adapter->state); 2027} 2028 2029struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev) 2030{ 2031 struct netxen_adapter *adapter = netdev_priv(netdev); 2032 struct net_device_stats *stats = &netdev->stats; 2033 2034 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts; 2035 stats->tx_packets = adapter->stats.xmitfinished; 2036 stats->rx_bytes = adapter->stats.rxbytes; 2037 stats->tx_bytes = adapter->stats.txbytes; 2038 stats->rx_dropped = adapter->stats.rxdropped; 2039 stats->tx_dropped = adapter->stats.txdropped; 2040 2041 return stats; 2042} 2043 2044static irqreturn_t netxen_intr(int irq, void *data) 2045{ 2046 struct nx_host_sds_ring *sds_ring = data; 2047 struct netxen_adapter *adapter = sds_ring->adapter; 2048 u32 status = 0; 2049 2050 status = readl(adapter->isr_int_vec); 2051 2052 if (!(status & adapter->int_vec_bit)) 2053 return IRQ_NONE; 2054 2055 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 2056 /* check interrupt state machine, to be sure */ 2057 status = readl(adapter->crb_int_state_reg); 2058 if (!ISR_LEGACY_INT_TRIGGERED(status)) 2059 return IRQ_NONE; 2060 2061 } else { 2062 unsigned long our_int = 0; 2063 2064 our_int = readl(adapter->crb_int_state_reg); 2065 2066 /* not our interrupt */ 2067 if (!test_and_clear_bit((7 + adapter->portnum), &our_int)) 2068 return IRQ_NONE; 2069 2070 /* claim interrupt */ 2071 writel((our_int & 0xffffffff), adapter->crb_int_state_reg); 2072 2073 /* clear interrupt */ 2074 netxen_nic_disable_int(sds_ring); 2075 } 2076 2077 writel(0xffffffff, adapter->tgt_status_reg); 2078 /* read twice to ensure write is flushed */ 2079 readl(adapter->isr_int_vec); 2080 readl(adapter->isr_int_vec); 2081 2082 napi_schedule(&sds_ring->napi); 2083 2084 return IRQ_HANDLED; 2085} 2086 2087static irqreturn_t netxen_msi_intr(int irq, void *data) 2088{ 2089 struct nx_host_sds_ring *sds_ring = data; 2090 struct netxen_adapter *adapter = sds_ring->adapter; 2091 2092 /* clear interrupt */ 2093 writel(0xffffffff, adapter->tgt_status_reg); 2094 2095 napi_schedule(&sds_ring->napi); 2096 return IRQ_HANDLED; 2097} 2098 2099static irqreturn_t netxen_msix_intr(int irq, void *data) 2100{ 2101 struct nx_host_sds_ring *sds_ring = data; 2102 2103 napi_schedule(&sds_ring->napi); 2104 return IRQ_HANDLED; 2105} 2106 2107static int netxen_nic_poll(struct napi_struct *napi, int budget) 2108{ 2109 struct nx_host_sds_ring *sds_ring = 2110 container_of(napi, struct nx_host_sds_ring, napi); 2111 2112 struct netxen_adapter *adapter = sds_ring->adapter; 2113 2114 int tx_complete; 2115 int work_done; 2116 2117 tx_complete = netxen_process_cmd_ring(adapter); 2118 2119 work_done = netxen_process_rcv_ring(sds_ring, budget); 2120 2121 if ((work_done < budget) && tx_complete) { 2122 napi_complete(&sds_ring->napi); 2123 if (test_bit(__NX_DEV_UP, &adapter->state)) 2124 netxen_nic_enable_int(sds_ring); 2125 } 2126 2127 return work_done; 2128} 2129 2130#ifdef CONFIG_NET_POLL_CONTROLLER 2131static void netxen_nic_poll_controller(struct net_device *netdev) 2132{ 2133 int ring; 2134 struct nx_host_sds_ring *sds_ring; 2135 struct netxen_adapter *adapter = netdev_priv(netdev); 2136 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 2137 2138 disable_irq(adapter->irq); 2139 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 2140 sds_ring = &recv_ctx->sds_rings[ring]; 2141 netxen_intr(adapter->irq, sds_ring); 2142 } 2143 enable_irq(adapter->irq); 2144} 2145#endif 2146 2147static int 2148nx_incr_dev_ref_cnt(struct netxen_adapter *adapter) 2149{ 2150 int count; 2151 if (netxen_api_lock(adapter)) 2152 return -EIO; 2153 2154 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2155 2156 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count); 2157 2158 netxen_api_unlock(adapter); 2159 return count; 2160} 2161 2162static int 2163nx_decr_dev_ref_cnt(struct netxen_adapter *adapter) 2164{ 2165 int count; 2166 if (netxen_api_lock(adapter)) 2167 return -EIO; 2168 2169 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2170 WARN_ON(count == 0); 2171 2172 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count); 2173 2174 if (count == 0) 2175 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD); 2176 2177 netxen_api_unlock(adapter); 2178 return count; 2179} 2180 2181static int 2182nx_dev_request_aer(struct netxen_adapter *adapter) 2183{ 2184 u32 state; 2185 int ret = -EINVAL; 2186 2187 if (netxen_api_lock(adapter)) 2188 return ret; 2189 2190 state = NXRD32(adapter, NX_CRB_DEV_STATE); 2191 2192 if (state == NX_DEV_NEED_AER) 2193 ret = 0; 2194 else if (state == NX_DEV_READY) { 2195 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER); 2196 ret = 0; 2197 } 2198 2199 netxen_api_unlock(adapter); 2200 return ret; 2201} 2202 2203static int 2204nx_dev_request_reset(struct netxen_adapter *adapter) 2205{ 2206 u32 state; 2207 int ret = -EINVAL; 2208 2209 if (netxen_api_lock(adapter)) 2210 return ret; 2211 2212 state = NXRD32(adapter, NX_CRB_DEV_STATE); 2213 2214 if (state == NX_DEV_NEED_RESET) 2215 ret = 0; 2216 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) { 2217 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET); 2218 ret = 0; 2219 } 2220 2221 netxen_api_unlock(adapter); 2222 2223 return ret; 2224} 2225 2226static int 2227netxen_can_start_firmware(struct netxen_adapter *adapter) 2228{ 2229 int count; 2230 int can_start = 0; 2231 2232 if (netxen_api_lock(adapter)) 2233 return 0; 2234 2235 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2236 2237 if ((count < 0) || (count >= NX_MAX_PCI_FUNC)) 2238 count = 0; 2239 2240 if (count == 0) { 2241 can_start = 1; 2242 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING); 2243 } 2244 2245 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count); 2246 2247 netxen_api_unlock(adapter); 2248 2249 return can_start; 2250} 2251 2252static void 2253netxen_schedule_work(struct netxen_adapter *adapter, 2254 work_func_t func, int delay) 2255{ 2256 INIT_DELAYED_WORK(&adapter->fw_work, func); 2257 schedule_delayed_work(&adapter->fw_work, delay); 2258} 2259 2260static void 2261netxen_cancel_fw_work(struct netxen_adapter *adapter) 2262{ 2263 while (test_and_set_bit(__NX_RESETTING, &adapter->state)) 2264 msleep(10); 2265 2266 cancel_delayed_work_sync(&adapter->fw_work); 2267} 2268 2269static void 2270netxen_attach_work(struct work_struct *work) 2271{ 2272 struct netxen_adapter *adapter = container_of(work, 2273 struct netxen_adapter, fw_work.work); 2274 struct net_device *netdev = adapter->netdev; 2275 int err = 0; 2276 2277 if (netif_running(netdev)) { 2278 err = netxen_nic_attach(adapter); 2279 if (err) 2280 goto done; 2281 2282 err = netxen_nic_up(adapter, netdev); 2283 if (err) { 2284 netxen_nic_detach(adapter); 2285 goto done; 2286 } 2287 2288 netxen_config_indev_addr(netdev, NETDEV_UP); 2289 } 2290 2291 netif_device_attach(netdev); 2292 2293done: 2294 adapter->fw_fail_cnt = 0; 2295 clear_bit(__NX_RESETTING, &adapter->state); 2296 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 2297} 2298 2299static void 2300netxen_fwinit_work(struct work_struct *work) 2301{ 2302 struct netxen_adapter *adapter = container_of(work, 2303 struct netxen_adapter, fw_work.work); 2304 int dev_state; 2305 2306 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE); 2307 2308 switch (dev_state) { 2309 case NX_DEV_COLD: 2310 case NX_DEV_READY: 2311 if (!netxen_start_firmware(adapter)) { 2312 netxen_schedule_work(adapter, netxen_attach_work, 0); 2313 return; 2314 } 2315 break; 2316 2317 case NX_DEV_NEED_RESET: 2318 case NX_DEV_INITALIZING: 2319 if (++adapter->fw_wait_cnt < FW_POLL_THRESH) { 2320 netxen_schedule_work(adapter, 2321 netxen_fwinit_work, 2 * FW_POLL_DELAY); 2322 return; 2323 } 2324 2325 case NX_DEV_FAILED: 2326 default: 2327 nx_incr_dev_ref_cnt(adapter); 2328 break; 2329 } 2330 2331 clear_bit(__NX_RESETTING, &adapter->state); 2332} 2333 2334static void 2335netxen_detach_work(struct work_struct *work) 2336{ 2337 struct netxen_adapter *adapter = container_of(work, 2338 struct netxen_adapter, fw_work.work); 2339 struct net_device *netdev = adapter->netdev; 2340 int ref_cnt, delay; 2341 u32 status; 2342 2343 netif_device_detach(netdev); 2344 2345 netxen_nic_down(adapter, netdev); 2346 2347 rtnl_lock(); 2348 netxen_nic_detach(adapter); 2349 rtnl_unlock(); 2350 2351 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1); 2352 2353 if (status & NX_RCODE_FATAL_ERROR) 2354 goto err_ret; 2355 2356 if (adapter->temp == NX_TEMP_PANIC) 2357 goto err_ret; 2358 2359 ref_cnt = nx_decr_dev_ref_cnt(adapter); 2360 2361 if (ref_cnt == -EIO) 2362 goto err_ret; 2363 2364 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY); 2365 2366 adapter->fw_wait_cnt = 0; 2367 netxen_schedule_work(adapter, netxen_fwinit_work, delay); 2368 2369 return; 2370 2371err_ret: 2372 clear_bit(__NX_RESETTING, &adapter->state); 2373} 2374 2375static int 2376netxen_check_health(struct netxen_adapter *adapter) 2377{ 2378 u32 state, heartbit; 2379 struct net_device *netdev = adapter->netdev; 2380 2381 state = NXRD32(adapter, NX_CRB_DEV_STATE); 2382 if (state == NX_DEV_NEED_AER) 2383 return 0; 2384 2385 if (netxen_nic_check_temp(adapter)) 2386 goto detach; 2387 2388 if (adapter->need_fw_reset) { 2389 if (nx_dev_request_reset(adapter)) 2390 return 0; 2391 goto detach; 2392 } 2393 2394 /* NX_DEV_NEED_RESET, this state can be marked in two cases 2395 * 1. Tx timeout 2. Fw hang 2396 * Send request to destroy context in case of tx timeout only 2397 * and doesn't required in case of Fw hang 2398 */ 2399 if (state == NX_DEV_NEED_RESET) { 2400 adapter->need_fw_reset = 1; 2401 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 2402 goto detach; 2403 } 2404 2405 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 2406 return 0; 2407 2408 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER); 2409 if (heartbit != adapter->heartbit) { 2410 adapter->heartbit = heartbit; 2411 adapter->fw_fail_cnt = 0; 2412 if (adapter->need_fw_reset) 2413 goto detach; 2414 return 0; 2415 } 2416 2417 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH) 2418 return 0; 2419 2420 if (nx_dev_request_reset(adapter)) 2421 return 0; 2422 2423 clear_bit(__NX_FW_ATTACHED, &adapter->state); 2424 2425 dev_info(&netdev->dev, "firmware hang detected\n"); 2426 2427detach: 2428 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) && 2429 !test_and_set_bit(__NX_RESETTING, &adapter->state)) 2430 netxen_schedule_work(adapter, netxen_detach_work, 0); 2431 return 1; 2432} 2433 2434static void 2435netxen_fw_poll_work(struct work_struct *work) 2436{ 2437 struct netxen_adapter *adapter = container_of(work, 2438 struct netxen_adapter, fw_work.work); 2439 2440 if (test_bit(__NX_RESETTING, &adapter->state)) 2441 goto reschedule; 2442 2443 if (test_bit(__NX_DEV_UP, &adapter->state)) { 2444 if (!adapter->has_link_events) { 2445 2446 netxen_nic_handle_phy_intr(adapter); 2447 2448 if (adapter->link_changed) 2449 netxen_nic_set_link_parameters(adapter); 2450 } 2451 } 2452 2453 if (netxen_check_health(adapter)) 2454 return; 2455 2456reschedule: 2457 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 2458} 2459 2460static ssize_t 2461netxen_store_bridged_mode(struct device *dev, 2462 struct device_attribute *attr, const char *buf, size_t len) 2463{ 2464 struct net_device *net = to_net_dev(dev); 2465 struct netxen_adapter *adapter = netdev_priv(net); 2466 unsigned long new; 2467 int ret = -EINVAL; 2468 2469 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG)) 2470 goto err_out; 2471 2472 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 2473 goto err_out; 2474 2475 if (strict_strtoul(buf, 2, &new)) 2476 goto err_out; 2477 2478 if (!netxen_config_bridged_mode(adapter, !!new)) 2479 ret = len; 2480 2481err_out: 2482 return ret; 2483} 2484 2485static ssize_t 2486netxen_show_bridged_mode(struct device *dev, 2487 struct device_attribute *attr, char *buf) 2488{ 2489 struct net_device *net = to_net_dev(dev); 2490 struct netxen_adapter *adapter; 2491 int bridged_mode = 0; 2492 2493 adapter = netdev_priv(net); 2494 2495 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) 2496 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED); 2497 2498 return sprintf(buf, "%d\n", bridged_mode); 2499} 2500 2501static struct device_attribute dev_attr_bridged_mode = { 2502 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)}, 2503 .show = netxen_show_bridged_mode, 2504 .store = netxen_store_bridged_mode, 2505}; 2506 2507static ssize_t 2508netxen_store_diag_mode(struct device *dev, 2509 struct device_attribute *attr, const char *buf, size_t len) 2510{ 2511 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2512 unsigned long new; 2513 2514 if (strict_strtoul(buf, 2, &new)) 2515 return -EINVAL; 2516 2517 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) 2518 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED; 2519 2520 return len; 2521} 2522 2523static ssize_t 2524netxen_show_diag_mode(struct device *dev, 2525 struct device_attribute *attr, char *buf) 2526{ 2527 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2528 2529 return sprintf(buf, "%d\n", 2530 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)); 2531} 2532 2533static struct device_attribute dev_attr_diag_mode = { 2534 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)}, 2535 .show = netxen_show_diag_mode, 2536 .store = netxen_store_diag_mode, 2537}; 2538 2539static int 2540netxen_sysfs_validate_crb(struct netxen_adapter *adapter, 2541 loff_t offset, size_t size) 2542{ 2543 size_t crb_size = 4; 2544 2545 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) 2546 return -EIO; 2547 2548 if (offset < NETXEN_PCI_CRBSPACE) { 2549 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 2550 return -EINVAL; 2551 2552 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, 2553 NETXEN_PCI_CAMQM_2M_END)) 2554 crb_size = 8; 2555 else 2556 return -EINVAL; 2557 } 2558 2559 if ((size != crb_size) || (offset & (crb_size-1))) 2560 return -EINVAL; 2561 2562 return 0; 2563} 2564 2565static ssize_t 2566netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj, 2567 struct bin_attribute *attr, 2568 char *buf, loff_t offset, size_t size) 2569{ 2570 struct device *dev = container_of(kobj, struct device, kobj); 2571 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2572 u32 data; 2573 u64 qmdata; 2574 int ret; 2575 2576 ret = netxen_sysfs_validate_crb(adapter, offset, size); 2577 if (ret != 0) 2578 return ret; 2579 2580 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && 2581 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, 2582 NETXEN_PCI_CAMQM_2M_END)) { 2583 netxen_pci_camqm_read_2M(adapter, offset, &qmdata); 2584 memcpy(buf, &qmdata, size); 2585 } else { 2586 data = NXRD32(adapter, offset); 2587 memcpy(buf, &data, size); 2588 } 2589 2590 return size; 2591} 2592 2593static ssize_t 2594netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj, 2595 struct bin_attribute *attr, 2596 char *buf, loff_t offset, size_t size) 2597{ 2598 struct device *dev = container_of(kobj, struct device, kobj); 2599 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2600 u32 data; 2601 u64 qmdata; 2602 int ret; 2603 2604 ret = netxen_sysfs_validate_crb(adapter, offset, size); 2605 if (ret != 0) 2606 return ret; 2607 2608 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && 2609 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, 2610 NETXEN_PCI_CAMQM_2M_END)) { 2611 memcpy(&qmdata, buf, size); 2612 netxen_pci_camqm_write_2M(adapter, offset, qmdata); 2613 } else { 2614 memcpy(&data, buf, size); 2615 NXWR32(adapter, offset, data); 2616 } 2617 2618 return size; 2619} 2620 2621static int 2622netxen_sysfs_validate_mem(struct netxen_adapter *adapter, 2623 loff_t offset, size_t size) 2624{ 2625 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) 2626 return -EIO; 2627 2628 if ((size != 8) || (offset & 0x7)) 2629 return -EIO; 2630 2631 return 0; 2632} 2633 2634static ssize_t 2635netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj, 2636 struct bin_attribute *attr, 2637 char *buf, loff_t offset, size_t size) 2638{ 2639 struct device *dev = container_of(kobj, struct device, kobj); 2640 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2641 u64 data; 2642 int ret; 2643 2644 ret = netxen_sysfs_validate_mem(adapter, offset, size); 2645 if (ret != 0) 2646 return ret; 2647 2648 if (adapter->pci_mem_read(adapter, offset, &data)) 2649 return -EIO; 2650 2651 memcpy(buf, &data, size); 2652 2653 return size; 2654} 2655 2656static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj, 2657 struct bin_attribute *attr, char *buf, 2658 loff_t offset, size_t size) 2659{ 2660 struct device *dev = container_of(kobj, struct device, kobj); 2661 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2662 u64 data; 2663 int ret; 2664 2665 ret = netxen_sysfs_validate_mem(adapter, offset, size); 2666 if (ret != 0) 2667 return ret; 2668 2669 memcpy(&data, buf, size); 2670 2671 if (adapter->pci_mem_write(adapter, offset, data)) 2672 return -EIO; 2673 2674 return size; 2675} 2676 2677 2678static struct bin_attribute bin_attr_crb = { 2679 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)}, 2680 .size = 0, 2681 .read = netxen_sysfs_read_crb, 2682 .write = netxen_sysfs_write_crb, 2683}; 2684 2685static struct bin_attribute bin_attr_mem = { 2686 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)}, 2687 .size = 0, 2688 .read = netxen_sysfs_read_mem, 2689 .write = netxen_sysfs_write_mem, 2690}; 2691 2692 2693static void 2694netxen_create_sysfs_entries(struct netxen_adapter *adapter) 2695{ 2696 struct net_device *netdev = adapter->netdev; 2697 struct device *dev = &netdev->dev; 2698 2699 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) { 2700 /* bridged_mode control */ 2701 if (device_create_file(dev, &dev_attr_bridged_mode)) { 2702 dev_warn(&netdev->dev, 2703 "failed to create bridged_mode sysfs entry\n"); 2704 } 2705 } 2706} 2707 2708static void 2709netxen_remove_sysfs_entries(struct netxen_adapter *adapter) 2710{ 2711 struct net_device *netdev = adapter->netdev; 2712 struct device *dev = &netdev->dev; 2713 2714 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) 2715 device_remove_file(dev, &dev_attr_bridged_mode); 2716} 2717 2718static void 2719netxen_create_diag_entries(struct netxen_adapter *adapter) 2720{ 2721 struct pci_dev *pdev = adapter->pdev; 2722 struct device *dev; 2723 2724 dev = &pdev->dev; 2725 if (device_create_file(dev, &dev_attr_diag_mode)) 2726 dev_info(dev, "failed to create diag_mode sysfs entry\n"); 2727 if (device_create_bin_file(dev, &bin_attr_crb)) 2728 dev_info(dev, "failed to create crb sysfs entry\n"); 2729 if (device_create_bin_file(dev, &bin_attr_mem)) 2730 dev_info(dev, "failed to create mem sysfs entry\n"); 2731} 2732 2733 2734static void 2735netxen_remove_diag_entries(struct netxen_adapter *adapter) 2736{ 2737 struct pci_dev *pdev = adapter->pdev; 2738 struct device *dev = &pdev->dev; 2739 2740 device_remove_file(dev, &dev_attr_diag_mode); 2741 device_remove_bin_file(dev, &bin_attr_crb); 2742 device_remove_bin_file(dev, &bin_attr_mem); 2743} 2744 2745#ifdef CONFIG_INET 2746 2747#define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops) 2748 2749static int 2750netxen_destip_supported(struct netxen_adapter *adapter) 2751{ 2752 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 2753 return 0; 2754 2755 if (adapter->ahw.cut_through) 2756 return 0; 2757 2758 return 1; 2759} 2760 2761static void 2762netxen_config_indev_addr(struct net_device *dev, unsigned long event) 2763{ 2764 struct in_device *indev; 2765 struct netxen_adapter *adapter = netdev_priv(dev); 2766 2767 if (!netxen_destip_supported(adapter)) 2768 return; 2769 2770 indev = in_dev_get(dev); 2771 if (!indev) 2772 return; 2773 2774 for_ifa(indev) { 2775 switch (event) { 2776 case NETDEV_UP: 2777 netxen_config_ipaddr(adapter, 2778 ifa->ifa_address, NX_IP_UP); 2779 break; 2780 case NETDEV_DOWN: 2781 netxen_config_ipaddr(adapter, 2782 ifa->ifa_address, NX_IP_DOWN); 2783 break; 2784 default: 2785 break; 2786 } 2787 } endfor_ifa(indev); 2788 2789 in_dev_put(indev); 2790} 2791 2792static int netxen_netdev_event(struct notifier_block *this, 2793 unsigned long event, void *ptr) 2794{ 2795 struct netxen_adapter *adapter; 2796 struct net_device *dev = (struct net_device *)ptr; 2797 2798recheck: 2799 if (dev == NULL) 2800 goto done; 2801 2802 if (dev->priv_flags & IFF_802_1Q_VLAN) { 2803 dev = vlan_dev_real_dev(dev); 2804 goto recheck; 2805 } 2806 2807 if (!is_netxen_netdev(dev)) 2808 goto done; 2809 2810 adapter = netdev_priv(dev); 2811 2812 if (!adapter) 2813 goto done; 2814 2815 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 2816 goto done; 2817 2818 netxen_config_indev_addr(dev, event); 2819done: 2820 return NOTIFY_DONE; 2821} 2822 2823static int 2824netxen_inetaddr_event(struct notifier_block *this, 2825 unsigned long event, void *ptr) 2826{ 2827 struct netxen_adapter *adapter; 2828 struct net_device *dev; 2829 2830 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr; 2831 2832 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL; 2833 2834recheck: 2835 if (dev == NULL || !netif_running(dev)) 2836 goto done; 2837 2838 if (dev->priv_flags & IFF_802_1Q_VLAN) { 2839 dev = vlan_dev_real_dev(dev); 2840 goto recheck; 2841 } 2842 2843 if (!is_netxen_netdev(dev)) 2844 goto done; 2845 2846 adapter = netdev_priv(dev); 2847 2848 if (!adapter || !netxen_destip_supported(adapter)) 2849 goto done; 2850 2851 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 2852 goto done; 2853 2854 switch (event) { 2855 case NETDEV_UP: 2856 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP); 2857 break; 2858 case NETDEV_DOWN: 2859 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN); 2860 break; 2861 default: 2862 break; 2863 } 2864 2865done: 2866 return NOTIFY_DONE; 2867} 2868 2869static struct notifier_block netxen_netdev_cb = { 2870 .notifier_call = netxen_netdev_event, 2871}; 2872 2873static struct notifier_block netxen_inetaddr_cb = { 2874 .notifier_call = netxen_inetaddr_event, 2875}; 2876#else 2877static void 2878netxen_config_indev_addr(struct net_device *dev, unsigned long event) 2879{ } 2880#endif 2881 2882static struct pci_error_handlers netxen_err_handler = { 2883 .error_detected = netxen_io_error_detected, 2884 .slot_reset = netxen_io_slot_reset, 2885 .resume = netxen_io_resume, 2886}; 2887 2888static struct pci_driver netxen_driver = { 2889 .name = netxen_nic_driver_name, 2890 .id_table = netxen_pci_tbl, 2891 .probe = netxen_nic_probe, 2892 .remove = __devexit_p(netxen_nic_remove), 2893#ifdef CONFIG_PM 2894 .suspend = netxen_nic_suspend, 2895 .resume = netxen_nic_resume, 2896#endif 2897 .shutdown = netxen_nic_shutdown, 2898 .err_handler = &netxen_err_handler 2899}; 2900 2901static int __init netxen_init_module(void) 2902{ 2903 printk(KERN_INFO "%s\n", netxen_nic_driver_string); 2904 2905#ifdef CONFIG_INET 2906 register_netdevice_notifier(&netxen_netdev_cb); 2907 register_inetaddr_notifier(&netxen_inetaddr_cb); 2908#endif 2909 return pci_register_driver(&netxen_driver); 2910} 2911 2912module_init(netxen_init_module); 2913 2914static void __exit netxen_exit_module(void) 2915{ 2916 pci_unregister_driver(&netxen_driver); 2917 2918#ifdef CONFIG_INET 2919 unregister_inetaddr_notifier(&netxen_inetaddr_cb); 2920 unregister_netdevice_notifier(&netxen_netdev_cb); 2921#endif 2922} 2923 2924module_exit(netxen_exit_module); 2925