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, see <http://www.gnu.org/licenses/>. 18 * 19 * The full GNU General Public License is included in this distribution 20 * in the file called "COPYING". 21 * 22 */ 23 24 #include <linux/slab.h> 25 #include <linux/vmalloc.h> 26 #include <linux/interrupt.h> 27 #include "netxen_nic_hw.h" 28 29 #include "netxen_nic.h" 30 31 #include <linux/dma-mapping.h> 32 #include <linux/if_vlan.h> 33 #include <net/ip.h> 34 #include <linux/ipv6.h> 35 #include <linux/inetdevice.h> 36 #include <linux/sysfs.h> 37 #include <linux/aer.h> 38 39 MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Intelligent Ethernet Driver"); 40 MODULE_LICENSE("GPL"); 41 MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID); 42 MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME); 43 44 char netxen_nic_driver_name[] = "netxen_nic"; 45 static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v" 46 NETXEN_NIC_LINUX_VERSIONID; 47 48 static int port_mode = NETXEN_PORT_MODE_AUTO_NEG; 49 50 /* Default to restricted 1G auto-neg mode */ 51 static int wol_port_mode = 5; 52 53 static int use_msi = 1; 54 55 static int use_msi_x = 1; 56 57 static int auto_fw_reset = AUTO_FW_RESET_ENABLED; 58 module_param(auto_fw_reset, int, 0644); 59 MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled"); 60 61 static int netxen_nic_probe(struct pci_dev *pdev, 62 const struct pci_device_id *ent); 63 static void netxen_nic_remove(struct pci_dev *pdev); 64 static int netxen_nic_open(struct net_device *netdev); 65 static int netxen_nic_close(struct net_device *netdev); 66 static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *, 67 struct net_device *); 68 static void netxen_tx_timeout(struct net_device *netdev); 69 static void netxen_tx_timeout_task(struct work_struct *work); 70 static void netxen_fw_poll_work(struct work_struct *work); 71 static void netxen_schedule_work(struct netxen_adapter *adapter, 72 work_func_t func, int delay); 73 static void netxen_cancel_fw_work(struct netxen_adapter *adapter); 74 static int netxen_nic_poll(struct napi_struct *napi, int budget); 75 #ifdef CONFIG_NET_POLL_CONTROLLER 76 static void netxen_nic_poll_controller(struct net_device *netdev); 77 #endif 78 79 static void netxen_create_sysfs_entries(struct netxen_adapter *adapter); 80 static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter); 81 static void netxen_create_diag_entries(struct netxen_adapter *adapter); 82 static void netxen_remove_diag_entries(struct netxen_adapter *adapter); 83 static int nx_dev_request_aer(struct netxen_adapter *adapter); 84 static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter); 85 static int netxen_can_start_firmware(struct netxen_adapter *adapter); 86 87 static irqreturn_t netxen_intr(int irq, void *data); 88 static irqreturn_t netxen_msi_intr(int irq, void *data); 89 static irqreturn_t netxen_msix_intr(int irq, void *data); 90 91 static void netxen_free_ip_list(struct netxen_adapter *, bool); 92 static void netxen_restore_indev_addr(struct net_device *dev, unsigned long); 93 static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *dev, 94 struct rtnl_link_stats64 *stats); 95 static int netxen_nic_set_mac(struct net_device *netdev, void *p); 96 97 /* PCI Device ID Table */ 98 #define ENTRY(device) \ 99 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \ 100 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0} 101 102 static DEFINE_PCI_DEVICE_TABLE(netxen_pci_tbl) = { 103 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR), 104 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4), 105 ENTRY(PCI_DEVICE_ID_NX2031_4GCU), 106 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ), 107 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ), 108 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT), 109 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2), 110 ENTRY(PCI_DEVICE_ID_NX3031), 111 {0,} 112 }; 113 114 MODULE_DEVICE_TABLE(pci, netxen_pci_tbl); 115 116 static uint32_t crb_cmd_producer[4] = { 117 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1, 118 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3 119 }; 120 121 void 122 netxen_nic_update_cmd_producer(struct netxen_adapter *adapter, 123 struct nx_host_tx_ring *tx_ring) 124 { 125 NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer); 126 } 127 128 static uint32_t crb_cmd_consumer[4] = { 129 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1, 130 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3 131 }; 132 133 static inline void 134 netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter, 135 struct nx_host_tx_ring *tx_ring) 136 { 137 NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer); 138 } 139 140 static uint32_t msi_tgt_status[8] = { 141 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1, 142 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3, 143 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5, 144 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7 145 }; 146 147 static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG; 148 149 static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring) 150 { 151 struct netxen_adapter *adapter = sds_ring->adapter; 152 153 NXWRIO(adapter, sds_ring->crb_intr_mask, 0); 154 } 155 156 static inline void netxen_nic_enable_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, 0x1); 161 162 if (!NETXEN_IS_MSI_FAMILY(adapter)) 163 NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff); 164 } 165 166 static int 167 netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count) 168 { 169 int size = sizeof(struct nx_host_sds_ring) * count; 170 171 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL); 172 173 return recv_ctx->sds_rings == NULL; 174 } 175 176 static void 177 netxen_free_sds_rings(struct netxen_recv_context *recv_ctx) 178 { 179 if (recv_ctx->sds_rings != NULL) 180 kfree(recv_ctx->sds_rings); 181 182 recv_ctx->sds_rings = NULL; 183 } 184 185 static int 186 netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev) 187 { 188 int ring; 189 struct nx_host_sds_ring *sds_ring; 190 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 191 192 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings)) 193 return -ENOMEM; 194 195 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 196 sds_ring = &recv_ctx->sds_rings[ring]; 197 netif_napi_add(netdev, &sds_ring->napi, 198 netxen_nic_poll, NAPI_POLL_WEIGHT); 199 } 200 201 return 0; 202 } 203 204 static void 205 netxen_napi_del(struct netxen_adapter *adapter) 206 { 207 int ring; 208 struct nx_host_sds_ring *sds_ring; 209 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 210 211 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 212 sds_ring = &recv_ctx->sds_rings[ring]; 213 netif_napi_del(&sds_ring->napi); 214 } 215 216 netxen_free_sds_rings(&adapter->recv_ctx); 217 } 218 219 static void 220 netxen_napi_enable(struct netxen_adapter *adapter) 221 { 222 int ring; 223 struct nx_host_sds_ring *sds_ring; 224 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 225 226 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 227 sds_ring = &recv_ctx->sds_rings[ring]; 228 napi_enable(&sds_ring->napi); 229 netxen_nic_enable_int(sds_ring); 230 } 231 } 232 233 static void 234 netxen_napi_disable(struct netxen_adapter *adapter) 235 { 236 int ring; 237 struct nx_host_sds_ring *sds_ring; 238 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 239 240 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 241 sds_ring = &recv_ctx->sds_rings[ring]; 242 netxen_nic_disable_int(sds_ring); 243 napi_synchronize(&sds_ring->napi); 244 napi_disable(&sds_ring->napi); 245 } 246 } 247 248 static int nx_set_dma_mask(struct netxen_adapter *adapter) 249 { 250 struct pci_dev *pdev = adapter->pdev; 251 uint64_t mask, cmask; 252 253 adapter->pci_using_dac = 0; 254 255 mask = DMA_BIT_MASK(32); 256 cmask = DMA_BIT_MASK(32); 257 258 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 259 #ifndef CONFIG_IA64 260 mask = DMA_BIT_MASK(35); 261 #endif 262 } else { 263 mask = DMA_BIT_MASK(39); 264 cmask = mask; 265 } 266 267 if (pci_set_dma_mask(pdev, mask) == 0 && 268 pci_set_consistent_dma_mask(pdev, cmask) == 0) { 269 adapter->pci_using_dac = 1; 270 return 0; 271 } 272 273 return -EIO; 274 } 275 276 /* Update addressable range if firmware supports it */ 277 static int 278 nx_update_dma_mask(struct netxen_adapter *adapter) 279 { 280 int change, shift, err; 281 uint64_t mask, old_mask, old_cmask; 282 struct pci_dev *pdev = adapter->pdev; 283 284 change = 0; 285 286 shift = NXRD32(adapter, CRB_DMA_SHIFT); 287 if (shift > 32) 288 return 0; 289 290 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9)) 291 change = 1; 292 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4)) 293 change = 1; 294 295 if (change) { 296 old_mask = pdev->dma_mask; 297 old_cmask = pdev->dev.coherent_dma_mask; 298 299 mask = DMA_BIT_MASK(32+shift); 300 301 err = pci_set_dma_mask(pdev, mask); 302 if (err) 303 goto err_out; 304 305 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 306 307 err = pci_set_consistent_dma_mask(pdev, mask); 308 if (err) 309 goto err_out; 310 } 311 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift); 312 } 313 314 return 0; 315 316 err_out: 317 pci_set_dma_mask(pdev, old_mask); 318 pci_set_consistent_dma_mask(pdev, old_cmask); 319 return err; 320 } 321 322 static int 323 netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot) 324 { 325 u32 val, timeout; 326 327 if (first_boot == 0x55555555) { 328 /* This is the first boot after power up */ 329 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC); 330 331 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id)) 332 return 0; 333 334 /* PCI bus master workaround */ 335 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4)); 336 if (!(first_boot & 0x4)) { 337 first_boot |= 0x4; 338 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot); 339 NXRD32(adapter, NETXEN_PCIE_REG(0x4)); 340 } 341 342 /* This is the first boot after power up */ 343 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET); 344 if (first_boot != 0x80000f) { 345 /* clear the register for future unloads/loads */ 346 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0); 347 return -EIO; 348 } 349 350 /* Start P2 boot loader */ 351 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE); 352 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1); 353 timeout = 0; 354 do { 355 msleep(1); 356 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc)); 357 358 if (++timeout > 5000) 359 return -EIO; 360 361 } while (val == NETXEN_BDINFO_MAGIC); 362 } 363 return 0; 364 } 365 366 static void netxen_set_port_mode(struct netxen_adapter *adapter) 367 { 368 u32 val, data; 369 370 val = adapter->ahw.board_type; 371 if ((val == NETXEN_BRDTYPE_P3_HMEZ) || 372 (val == NETXEN_BRDTYPE_P3_XG_LOM)) { 373 if (port_mode == NETXEN_PORT_MODE_802_3_AP) { 374 data = NETXEN_PORT_MODE_802_3_AP; 375 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); 376 } else if (port_mode == NETXEN_PORT_MODE_XG) { 377 data = NETXEN_PORT_MODE_XG; 378 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); 379 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) { 380 data = NETXEN_PORT_MODE_AUTO_NEG_1G; 381 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); 382 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) { 383 data = NETXEN_PORT_MODE_AUTO_NEG_XG; 384 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); 385 } else { 386 data = NETXEN_PORT_MODE_AUTO_NEG; 387 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); 388 } 389 390 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) && 391 (wol_port_mode != NETXEN_PORT_MODE_XG) && 392 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) && 393 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) { 394 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG; 395 } 396 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode); 397 } 398 } 399 400 #define PCI_CAP_ID_GEN 0x10 401 402 static void netxen_pcie_strap_init(struct netxen_adapter *adapter) 403 { 404 u32 pdevfuncsave; 405 u32 c8c9value = 0; 406 u32 chicken = 0; 407 u32 control = 0; 408 int i, pos; 409 struct pci_dev *pdev; 410 411 pdev = adapter->pdev; 412 413 chicken = NXRD32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3)); 414 /* clear chicken3.25:24 */ 415 chicken &= 0xFCFFFFFF; 416 /* 417 * if gen1 and B0, set F1020 - if gen 2, do nothing 418 * if gen2 set to F1000 419 */ 420 pos = pci_find_capability(pdev, PCI_CAP_ID_GEN); 421 if (pos == 0xC0) { 422 pci_read_config_dword(pdev, pos + 0x10, &control); 423 if ((control & 0x000F0000) != 0x00020000) { 424 /* set chicken3.24 if gen1 */ 425 chicken |= 0x01000000; 426 } 427 dev_info(&adapter->pdev->dev, "Gen2 strapping detected\n"); 428 c8c9value = 0xF1000; 429 } else { 430 /* set chicken3.24 if gen1 */ 431 chicken |= 0x01000000; 432 dev_info(&adapter->pdev->dev, "Gen1 strapping detected\n"); 433 if (adapter->ahw.revision_id == NX_P3_B0) 434 c8c9value = 0xF1020; 435 else 436 c8c9value = 0; 437 } 438 439 NXWR32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3), chicken); 440 441 if (!c8c9value) 442 return; 443 444 pdevfuncsave = pdev->devfn; 445 if (pdevfuncsave & 0x07) 446 return; 447 448 for (i = 0; i < 8; i++) { 449 pci_read_config_dword(pdev, pos + 8, &control); 450 pci_read_config_dword(pdev, pos + 8, &control); 451 pci_write_config_dword(pdev, pos + 8, c8c9value); 452 pdev->devfn++; 453 } 454 pdev->devfn = pdevfuncsave; 455 } 456 457 static void netxen_set_msix_bit(struct pci_dev *pdev, int enable) 458 { 459 u32 control; 460 461 if (pdev->msix_cap) { 462 pci_read_config_dword(pdev, pdev->msix_cap, &control); 463 if (enable) 464 control |= PCI_MSIX_FLAGS_ENABLE; 465 else 466 control = 0; 467 pci_write_config_dword(pdev, pdev->msix_cap, control); 468 } 469 } 470 471 static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count) 472 { 473 int i; 474 475 for (i = 0; i < count; i++) 476 adapter->msix_entries[i].entry = i; 477 } 478 479 static int 480 netxen_read_mac_addr(struct netxen_adapter *adapter) 481 { 482 int i; 483 unsigned char *p; 484 u64 mac_addr; 485 struct net_device *netdev = adapter->netdev; 486 struct pci_dev *pdev = adapter->pdev; 487 488 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 489 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0) 490 return -EIO; 491 } else { 492 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0) 493 return -EIO; 494 } 495 496 p = (unsigned char *)&mac_addr; 497 for (i = 0; i < 6; i++) 498 netdev->dev_addr[i] = *(p + 5 - i); 499 500 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len); 501 502 /* set station address */ 503 504 if (!is_valid_ether_addr(netdev->dev_addr)) 505 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr); 506 507 return 0; 508 } 509 510 static int netxen_nic_set_mac(struct net_device *netdev, void *p) 511 { 512 struct netxen_adapter *adapter = netdev_priv(netdev); 513 struct sockaddr *addr = p; 514 515 if (!is_valid_ether_addr(addr->sa_data)) 516 return -EADDRNOTAVAIL; 517 518 if (netif_running(netdev)) { 519 netif_device_detach(netdev); 520 netxen_napi_disable(adapter); 521 } 522 523 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len); 524 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); 525 adapter->macaddr_set(adapter, addr->sa_data); 526 527 if (netif_running(netdev)) { 528 netif_device_attach(netdev); 529 netxen_napi_enable(adapter); 530 } 531 return 0; 532 } 533 534 static void netxen_set_multicast_list(struct net_device *dev) 535 { 536 struct netxen_adapter *adapter = netdev_priv(dev); 537 538 adapter->set_multi(dev); 539 } 540 541 static netdev_features_t netxen_fix_features(struct net_device *dev, 542 netdev_features_t features) 543 { 544 if (!(features & NETIF_F_RXCSUM)) { 545 netdev_info(dev, "disabling LRO as RXCSUM is off\n"); 546 547 features &= ~NETIF_F_LRO; 548 } 549 550 return features; 551 } 552 553 static int netxen_set_features(struct net_device *dev, 554 netdev_features_t features) 555 { 556 struct netxen_adapter *adapter = netdev_priv(dev); 557 int hw_lro; 558 559 if (!((dev->features ^ features) & NETIF_F_LRO)) 560 return 0; 561 562 hw_lro = (features & NETIF_F_LRO) ? NETXEN_NIC_LRO_ENABLED 563 : NETXEN_NIC_LRO_DISABLED; 564 565 if (netxen_config_hw_lro(adapter, hw_lro)) 566 return -EIO; 567 568 if (!(features & NETIF_F_LRO) && netxen_send_lro_cleanup(adapter)) 569 return -EIO; 570 571 return 0; 572 } 573 574 static const struct net_device_ops netxen_netdev_ops = { 575 .ndo_open = netxen_nic_open, 576 .ndo_stop = netxen_nic_close, 577 .ndo_start_xmit = netxen_nic_xmit_frame, 578 .ndo_get_stats64 = netxen_nic_get_stats, 579 .ndo_validate_addr = eth_validate_addr, 580 .ndo_set_rx_mode = netxen_set_multicast_list, 581 .ndo_set_mac_address = netxen_nic_set_mac, 582 .ndo_change_mtu = netxen_nic_change_mtu, 583 .ndo_tx_timeout = netxen_tx_timeout, 584 .ndo_fix_features = netxen_fix_features, 585 .ndo_set_features = netxen_set_features, 586 #ifdef CONFIG_NET_POLL_CONTROLLER 587 .ndo_poll_controller = netxen_nic_poll_controller, 588 #endif 589 }; 590 591 static inline bool netxen_function_zero(struct pci_dev *pdev) 592 { 593 return (PCI_FUNC(pdev->devfn) == 0) ? true : false; 594 } 595 596 static inline void netxen_set_interrupt_mode(struct netxen_adapter *adapter, 597 u32 mode) 598 { 599 NXWR32(adapter, NETXEN_INTR_MODE_REG, mode); 600 } 601 602 static inline u32 netxen_get_interrupt_mode(struct netxen_adapter *adapter) 603 { 604 return NXRD32(adapter, NETXEN_INTR_MODE_REG); 605 } 606 607 static void 608 netxen_initialize_interrupt_registers(struct netxen_adapter *adapter) 609 { 610 struct netxen_legacy_intr_set *legacy_intrp; 611 u32 tgt_status_reg, int_state_reg; 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 tgt_status_reg = legacy_intrp->tgt_status_reg; 619 int_state_reg = ISR_INT_STATE_REG; 620 621 adapter->int_vec_bit = legacy_intrp->int_vec_bit; 622 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, tgt_status_reg); 623 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter, 624 legacy_intrp->tgt_mask_reg); 625 adapter->pci_int_reg = netxen_get_ioaddr(adapter, 626 legacy_intrp->pci_int_reg); 627 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR); 628 629 if (adapter->ahw.revision_id >= NX_P3_B1) 630 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter, 631 int_state_reg); 632 else 633 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter, 634 CRB_INT_VECTOR); 635 } 636 637 static int netxen_setup_msi_interrupts(struct netxen_adapter *adapter, 638 int num_msix) 639 { 640 struct pci_dev *pdev = adapter->pdev; 641 u32 value; 642 int err; 643 644 if (adapter->msix_supported) { 645 netxen_init_msix_entries(adapter, num_msix); 646 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix); 647 if (err == 0) { 648 adapter->flags |= NETXEN_NIC_MSIX_ENABLED; 649 netxen_set_msix_bit(pdev, 1); 650 651 if (adapter->rss_supported) 652 adapter->max_sds_rings = num_msix; 653 654 dev_info(&pdev->dev, "using msi-x interrupts\n"); 655 return 0; 656 } 657 /* fall through for msi */ 658 } 659 660 if (use_msi && !pci_enable_msi(pdev)) { 661 value = msi_tgt_status[adapter->ahw.pci_func]; 662 adapter->flags |= NETXEN_NIC_MSI_ENABLED; 663 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, value); 664 adapter->msix_entries[0].vector = pdev->irq; 665 dev_info(&pdev->dev, "using msi interrupts\n"); 666 return 0; 667 } 668 669 dev_err(&pdev->dev, "Failed to acquire MSI-X/MSI interrupt vector\n"); 670 return -EIO; 671 } 672 673 static int netxen_setup_intr(struct netxen_adapter *adapter) 674 { 675 struct pci_dev *pdev = adapter->pdev; 676 int num_msix; 677 678 if (adapter->rss_supported) 679 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ? 680 MSIX_ENTRIES_PER_ADAPTER : 2; 681 else 682 num_msix = 1; 683 684 adapter->max_sds_rings = 1; 685 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED); 686 687 netxen_initialize_interrupt_registers(adapter); 688 netxen_set_msix_bit(pdev, 0); 689 690 if (netxen_function_zero(pdev)) { 691 if (!netxen_setup_msi_interrupts(adapter, num_msix)) 692 netxen_set_interrupt_mode(adapter, NETXEN_MSI_MODE); 693 else 694 netxen_set_interrupt_mode(adapter, NETXEN_INTX_MODE); 695 } else { 696 if (netxen_get_interrupt_mode(adapter) == NETXEN_MSI_MODE && 697 netxen_setup_msi_interrupts(adapter, num_msix)) { 698 dev_err(&pdev->dev, "Co-existence of MSI-X/MSI and INTx interrupts is not supported\n"); 699 return -EIO; 700 } 701 } 702 703 if (!NETXEN_IS_MSI_FAMILY(adapter)) { 704 adapter->msix_entries[0].vector = pdev->irq; 705 dev_info(&pdev->dev, "using legacy interrupts\n"); 706 } 707 return 0; 708 } 709 710 static void 711 netxen_teardown_intr(struct netxen_adapter *adapter) 712 { 713 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) 714 pci_disable_msix(adapter->pdev); 715 if (adapter->flags & NETXEN_NIC_MSI_ENABLED) 716 pci_disable_msi(adapter->pdev); 717 } 718 719 static void 720 netxen_cleanup_pci_map(struct netxen_adapter *adapter) 721 { 722 if (adapter->ahw.db_base != NULL) 723 iounmap(adapter->ahw.db_base); 724 if (adapter->ahw.pci_base0 != NULL) 725 iounmap(adapter->ahw.pci_base0); 726 if (adapter->ahw.pci_base1 != NULL) 727 iounmap(adapter->ahw.pci_base1); 728 if (adapter->ahw.pci_base2 != NULL) 729 iounmap(adapter->ahw.pci_base2); 730 } 731 732 static int 733 netxen_setup_pci_map(struct netxen_adapter *adapter) 734 { 735 void __iomem *db_ptr = NULL; 736 737 resource_size_t mem_base, db_base; 738 unsigned long mem_len, db_len = 0; 739 740 struct pci_dev *pdev = adapter->pdev; 741 int pci_func = adapter->ahw.pci_func; 742 struct netxen_hardware_context *ahw = &adapter->ahw; 743 744 int err = 0; 745 746 /* 747 * Set the CRB window to invalid. If any register in window 0 is 748 * accessed it should set the window to 0 and then reset it to 1. 749 */ 750 adapter->ahw.crb_win = -1; 751 adapter->ahw.ocm_win = -1; 752 753 /* remap phys address */ 754 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ 755 mem_len = pci_resource_len(pdev, 0); 756 757 /* 128 Meg of memory */ 758 if (mem_len == NETXEN_PCI_128MB_SIZE) { 759 760 ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE); 761 ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START, 762 SECOND_PAGE_GROUP_SIZE); 763 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START, 764 THIRD_PAGE_GROUP_SIZE); 765 if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL || 766 ahw->pci_base2 == NULL) { 767 dev_err(&pdev->dev, "failed to map PCI bar 0\n"); 768 err = -EIO; 769 goto err_out; 770 } 771 772 ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE; 773 774 } else if (mem_len == NETXEN_PCI_32MB_SIZE) { 775 776 ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE); 777 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START - 778 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE); 779 if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) { 780 dev_err(&pdev->dev, "failed to map PCI bar 0\n"); 781 err = -EIO; 782 goto err_out; 783 } 784 785 } else if (mem_len == NETXEN_PCI_2MB_SIZE) { 786 787 ahw->pci_base0 = pci_ioremap_bar(pdev, 0); 788 if (ahw->pci_base0 == NULL) { 789 dev_err(&pdev->dev, "failed to map PCI bar 0\n"); 790 return -EIO; 791 } 792 ahw->pci_len0 = mem_len; 793 } else { 794 return -EIO; 795 } 796 797 netxen_setup_hwops(adapter); 798 799 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20)); 800 801 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) { 802 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter, 803 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func))); 804 805 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 806 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter, 807 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func))); 808 } 809 810 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 811 goto skip_doorbell; 812 813 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ 814 db_len = pci_resource_len(pdev, 4); 815 816 if (db_len == 0) { 817 printk(KERN_ERR "%s: doorbell is disabled\n", 818 netxen_nic_driver_name); 819 err = -EIO; 820 goto err_out; 821 } 822 823 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES); 824 if (!db_ptr) { 825 printk(KERN_ERR "%s: Failed to allocate doorbell map.", 826 netxen_nic_driver_name); 827 err = -EIO; 828 goto err_out; 829 } 830 831 skip_doorbell: 832 adapter->ahw.db_base = db_ptr; 833 adapter->ahw.db_len = db_len; 834 return 0; 835 836 err_out: 837 netxen_cleanup_pci_map(adapter); 838 return err; 839 } 840 841 static void 842 netxen_check_options(struct netxen_adapter *adapter) 843 { 844 u32 fw_major, fw_minor, fw_build, prev_fw_version; 845 char brd_name[NETXEN_MAX_SHORT_NAME]; 846 char serial_num[32]; 847 int i, offset, val, err; 848 __le32 *ptr32; 849 struct pci_dev *pdev = adapter->pdev; 850 851 adapter->driver_mismatch = 0; 852 853 ptr32 = (__le32 *)&serial_num; 854 offset = NX_FW_SERIAL_NUM_OFFSET; 855 for (i = 0; i < 8; i++) { 856 if (netxen_rom_fast_read(adapter, offset, &val) == -1) { 857 dev_err(&pdev->dev, "error reading board info\n"); 858 adapter->driver_mismatch = 1; 859 return; 860 } 861 ptr32[i] = cpu_to_le32(val); 862 offset += sizeof(u32); 863 } 864 865 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR); 866 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR); 867 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB); 868 prev_fw_version = adapter->fw_version; 869 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build); 870 871 /* Get FW Mini Coredump template and store it */ 872 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 873 if (adapter->mdump.md_template == NULL || 874 adapter->fw_version > prev_fw_version) { 875 kfree(adapter->mdump.md_template); 876 adapter->mdump.md_template = NULL; 877 err = netxen_setup_minidump(adapter); 878 if (err) 879 dev_err(&adapter->pdev->dev, 880 "Failed to setup minidump rcode = %d\n", err); 881 } 882 } 883 884 if (adapter->portnum == 0) { 885 if (netxen_nic_get_brd_name_by_type(adapter->ahw.board_type, 886 brd_name)) 887 strcpy(serial_num, "Unknown"); 888 889 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n", 890 module_name(THIS_MODULE), 891 brd_name, serial_num, adapter->ahw.revision_id); 892 } 893 894 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) { 895 adapter->driver_mismatch = 1; 896 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n", 897 fw_major, fw_minor, fw_build); 898 return; 899 } 900 901 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 902 i = NXRD32(adapter, NETXEN_SRE_MISC); 903 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0; 904 } 905 906 dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d [%s]\n", 907 NETXEN_NIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build, 908 adapter->ahw.cut_through ? "cut-through" : "legacy"); 909 910 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222)) 911 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1); 912 913 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) { 914 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G; 915 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G; 916 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) { 917 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G; 918 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G; 919 } 920 921 adapter->msix_supported = 0; 922 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 923 adapter->msix_supported = !!use_msi_x; 924 adapter->rss_supported = !!use_msi_x; 925 } else { 926 u32 flashed_ver = 0; 927 netxen_rom_fast_read(adapter, 928 NX_FW_VERSION_OFFSET, (int *)&flashed_ver); 929 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver); 930 931 if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) { 932 switch (adapter->ahw.board_type) { 933 case NETXEN_BRDTYPE_P2_SB31_10G: 934 case NETXEN_BRDTYPE_P2_SB31_10G_CX4: 935 adapter->msix_supported = !!use_msi_x; 936 adapter->rss_supported = !!use_msi_x; 937 break; 938 default: 939 break; 940 } 941 } 942 } 943 944 adapter->num_txd = MAX_CMD_DESCRIPTORS; 945 946 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 947 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS; 948 adapter->max_rds_rings = 3; 949 } else { 950 adapter->num_lro_rxd = 0; 951 adapter->max_rds_rings = 2; 952 } 953 } 954 955 static int 956 netxen_start_firmware(struct netxen_adapter *adapter) 957 { 958 int val, err, first_boot; 959 struct pci_dev *pdev = adapter->pdev; 960 961 /* required for NX2031 dummy dma */ 962 err = nx_set_dma_mask(adapter); 963 if (err) 964 return err; 965 966 err = netxen_can_start_firmware(adapter); 967 968 if (err < 0) 969 return err; 970 971 if (!err) 972 goto wait_init; 973 974 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc)); 975 976 err = netxen_check_hw_init(adapter, first_boot); 977 if (err) { 978 dev_err(&pdev->dev, "error in init HW init sequence\n"); 979 return err; 980 } 981 982 netxen_request_firmware(adapter); 983 984 err = netxen_need_fw_reset(adapter); 985 if (err < 0) 986 goto err_out; 987 if (err == 0) 988 goto pcie_strap_init; 989 990 if (first_boot != 0x55555555) { 991 NXWR32(adapter, CRB_CMDPEG_STATE, 0); 992 netxen_pinit_from_rom(adapter); 993 msleep(1); 994 } 995 996 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555); 997 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0); 998 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0); 999 1000 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1001 netxen_set_port_mode(adapter); 1002 1003 err = netxen_load_firmware(adapter); 1004 if (err) 1005 goto err_out; 1006 1007 netxen_release_firmware(adapter); 1008 1009 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 1010 1011 /* Initialize multicast addr pool owners */ 1012 val = 0x7654; 1013 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) 1014 val |= 0x0f000000; 1015 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val); 1016 1017 } 1018 1019 err = netxen_init_dummy_dma(adapter); 1020 if (err) 1021 goto err_out; 1022 1023 /* 1024 * Tell the hardware our version number. 1025 */ 1026 val = (_NETXEN_NIC_LINUX_MAJOR << 16) 1027 | ((_NETXEN_NIC_LINUX_MINOR << 8)) 1028 | (_NETXEN_NIC_LINUX_SUBVERSION); 1029 NXWR32(adapter, CRB_DRIVER_VERSION, val); 1030 1031 pcie_strap_init: 1032 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1033 netxen_pcie_strap_init(adapter); 1034 1035 wait_init: 1036 /* Handshake with the card before we register the devices. */ 1037 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE); 1038 if (err) { 1039 netxen_free_dummy_dma(adapter); 1040 goto err_out; 1041 } 1042 1043 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY); 1044 1045 nx_update_dma_mask(adapter); 1046 1047 netxen_check_options(adapter); 1048 1049 adapter->need_fw_reset = 0; 1050 1051 /* fall through and release firmware */ 1052 1053 err_out: 1054 netxen_release_firmware(adapter); 1055 return err; 1056 } 1057 1058 static int 1059 netxen_nic_request_irq(struct netxen_adapter *adapter) 1060 { 1061 irq_handler_t handler; 1062 struct nx_host_sds_ring *sds_ring; 1063 int err, ring; 1064 1065 unsigned long flags = 0; 1066 struct net_device *netdev = adapter->netdev; 1067 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 1068 1069 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) 1070 handler = netxen_msix_intr; 1071 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED) 1072 handler = netxen_msi_intr; 1073 else { 1074 flags |= IRQF_SHARED; 1075 handler = netxen_intr; 1076 } 1077 adapter->irq = netdev->irq; 1078 1079 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 1080 sds_ring = &recv_ctx->sds_rings[ring]; 1081 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring); 1082 err = request_irq(sds_ring->irq, handler, 1083 flags, sds_ring->name, sds_ring); 1084 if (err) 1085 return err; 1086 } 1087 1088 return 0; 1089 } 1090 1091 static void 1092 netxen_nic_free_irq(struct netxen_adapter *adapter) 1093 { 1094 int ring; 1095 struct nx_host_sds_ring *sds_ring; 1096 1097 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 1098 1099 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 1100 sds_ring = &recv_ctx->sds_rings[ring]; 1101 free_irq(sds_ring->irq, sds_ring); 1102 } 1103 } 1104 1105 static void 1106 netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter) 1107 { 1108 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT; 1109 adapter->coal.normal.data.rx_time_us = 1110 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US; 1111 adapter->coal.normal.data.rx_packets = 1112 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS; 1113 adapter->coal.normal.data.tx_time_us = 1114 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US; 1115 adapter->coal.normal.data.tx_packets = 1116 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS; 1117 } 1118 1119 /* with rtnl_lock */ 1120 static int 1121 __netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev) 1122 { 1123 int err; 1124 1125 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 1126 return -EIO; 1127 1128 err = adapter->init_port(adapter, adapter->physical_port); 1129 if (err) { 1130 printk(KERN_ERR "%s: Failed to initialize port %d\n", 1131 netxen_nic_driver_name, adapter->portnum); 1132 return err; 1133 } 1134 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 1135 adapter->macaddr_set(adapter, adapter->mac_addr); 1136 1137 adapter->set_multi(netdev); 1138 adapter->set_mtu(adapter, netdev->mtu); 1139 1140 adapter->ahw.linkup = 0; 1141 1142 if (adapter->max_sds_rings > 1) 1143 netxen_config_rss(adapter, 1); 1144 1145 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1146 netxen_config_intr_coalesce(adapter); 1147 1148 if (netdev->features & NETIF_F_LRO) 1149 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED); 1150 1151 netxen_napi_enable(adapter); 1152 1153 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION) 1154 netxen_linkevent_request(adapter, 1); 1155 else 1156 netxen_nic_set_link_parameters(adapter); 1157 1158 set_bit(__NX_DEV_UP, &adapter->state); 1159 return 0; 1160 } 1161 1162 /* Usage: During resume and firmware recovery module.*/ 1163 1164 static inline int 1165 netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev) 1166 { 1167 int err = 0; 1168 1169 rtnl_lock(); 1170 if (netif_running(netdev)) 1171 err = __netxen_nic_up(adapter, netdev); 1172 rtnl_unlock(); 1173 1174 return err; 1175 } 1176 1177 /* with rtnl_lock */ 1178 static void 1179 __netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) 1180 { 1181 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 1182 return; 1183 1184 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state)) 1185 return; 1186 1187 smp_mb(); 1188 spin_lock(&adapter->tx_clean_lock); 1189 netif_carrier_off(netdev); 1190 netif_tx_disable(netdev); 1191 1192 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION) 1193 netxen_linkevent_request(adapter, 0); 1194 1195 if (adapter->stop_port) 1196 adapter->stop_port(adapter); 1197 1198 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1199 netxen_p3_free_mac_list(adapter); 1200 1201 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE); 1202 1203 netxen_napi_disable(adapter); 1204 1205 netxen_release_tx_buffers(adapter); 1206 spin_unlock(&adapter->tx_clean_lock); 1207 } 1208 1209 /* Usage: During suspend and firmware recovery module */ 1210 1211 static inline void 1212 netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) 1213 { 1214 rtnl_lock(); 1215 if (netif_running(netdev)) 1216 __netxen_nic_down(adapter, netdev); 1217 rtnl_unlock(); 1218 1219 } 1220 1221 static int 1222 netxen_nic_attach(struct netxen_adapter *adapter) 1223 { 1224 struct net_device *netdev = adapter->netdev; 1225 struct pci_dev *pdev = adapter->pdev; 1226 int err, ring; 1227 struct nx_host_rds_ring *rds_ring; 1228 struct nx_host_tx_ring *tx_ring; 1229 u32 capab2; 1230 1231 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) 1232 return 0; 1233 1234 err = netxen_init_firmware(adapter); 1235 if (err) 1236 return err; 1237 1238 adapter->flags &= ~NETXEN_FW_MSS_CAP; 1239 if (adapter->capabilities & NX_FW_CAPABILITY_MORE_CAPS) { 1240 capab2 = NXRD32(adapter, CRB_FW_CAPABILITIES_2); 1241 if (capab2 & NX_FW_CAPABILITY_2_LRO_MAX_TCP_SEG) 1242 adapter->flags |= NETXEN_FW_MSS_CAP; 1243 } 1244 1245 err = netxen_napi_add(adapter, netdev); 1246 if (err) 1247 return err; 1248 1249 err = netxen_alloc_sw_resources(adapter); 1250 if (err) { 1251 printk(KERN_ERR "%s: Error in setting sw resources\n", 1252 netdev->name); 1253 return err; 1254 } 1255 1256 err = netxen_alloc_hw_resources(adapter); 1257 if (err) { 1258 printk(KERN_ERR "%s: Error in setting hw resources\n", 1259 netdev->name); 1260 goto err_out_free_sw; 1261 } 1262 1263 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 1264 tx_ring = adapter->tx_ring; 1265 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter, 1266 crb_cmd_producer[adapter->portnum]); 1267 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter, 1268 crb_cmd_consumer[adapter->portnum]); 1269 1270 tx_ring->producer = 0; 1271 tx_ring->sw_consumer = 0; 1272 1273 netxen_nic_update_cmd_producer(adapter, tx_ring); 1274 netxen_nic_update_cmd_consumer(adapter, tx_ring); 1275 } 1276 1277 for (ring = 0; ring < adapter->max_rds_rings; ring++) { 1278 rds_ring = &adapter->recv_ctx.rds_rings[ring]; 1279 netxen_post_rx_buffers(adapter, ring, rds_ring); 1280 } 1281 1282 err = netxen_nic_request_irq(adapter); 1283 if (err) { 1284 dev_err(&pdev->dev, "%s: failed to setup interrupt\n", 1285 netdev->name); 1286 goto err_out_free_rxbuf; 1287 } 1288 1289 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1290 netxen_nic_init_coalesce_defaults(adapter); 1291 1292 netxen_create_sysfs_entries(adapter); 1293 1294 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC; 1295 return 0; 1296 1297 err_out_free_rxbuf: 1298 netxen_release_rx_buffers(adapter); 1299 netxen_free_hw_resources(adapter); 1300 err_out_free_sw: 1301 netxen_free_sw_resources(adapter); 1302 return err; 1303 } 1304 1305 static void 1306 netxen_nic_detach(struct netxen_adapter *adapter) 1307 { 1308 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 1309 return; 1310 1311 netxen_remove_sysfs_entries(adapter); 1312 1313 netxen_free_hw_resources(adapter); 1314 netxen_release_rx_buffers(adapter); 1315 netxen_nic_free_irq(adapter); 1316 netxen_napi_del(adapter); 1317 netxen_free_sw_resources(adapter); 1318 1319 adapter->is_up = 0; 1320 } 1321 1322 int 1323 netxen_nic_reset_context(struct netxen_adapter *adapter) 1324 { 1325 int err = 0; 1326 struct net_device *netdev = adapter->netdev; 1327 1328 if (test_and_set_bit(__NX_RESETTING, &adapter->state)) 1329 return -EBUSY; 1330 1331 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { 1332 1333 netif_device_detach(netdev); 1334 1335 if (netif_running(netdev)) 1336 __netxen_nic_down(adapter, netdev); 1337 1338 netxen_nic_detach(adapter); 1339 1340 if (netif_running(netdev)) { 1341 err = netxen_nic_attach(adapter); 1342 if (!err) 1343 err = __netxen_nic_up(adapter, netdev); 1344 1345 if (err) 1346 goto done; 1347 } 1348 1349 netif_device_attach(netdev); 1350 } 1351 1352 done: 1353 clear_bit(__NX_RESETTING, &adapter->state); 1354 return err; 1355 } 1356 1357 static int 1358 netxen_setup_netdev(struct netxen_adapter *adapter, 1359 struct net_device *netdev) 1360 { 1361 int err = 0; 1362 struct pci_dev *pdev = adapter->pdev; 1363 1364 adapter->mc_enabled = 0; 1365 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1366 adapter->max_mc_count = 38; 1367 else 1368 adapter->max_mc_count = 16; 1369 1370 netdev->netdev_ops = &netxen_netdev_ops; 1371 netdev->watchdog_timeo = 5*HZ; 1372 1373 netxen_nic_change_mtu(netdev, netdev->mtu); 1374 1375 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops); 1376 1377 netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO | 1378 NETIF_F_RXCSUM; 1379 1380 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1381 netdev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6; 1382 1383 netdev->vlan_features |= netdev->hw_features; 1384 1385 if (adapter->pci_using_dac) { 1386 netdev->features |= NETIF_F_HIGHDMA; 1387 netdev->vlan_features |= NETIF_F_HIGHDMA; 1388 } 1389 1390 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX) 1391 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX; 1392 1393 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO) 1394 netdev->hw_features |= NETIF_F_LRO; 1395 1396 netdev->features |= netdev->hw_features; 1397 1398 netdev->irq = adapter->msix_entries[0].vector; 1399 1400 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task); 1401 1402 if (netxen_read_mac_addr(adapter)) 1403 dev_warn(&pdev->dev, "failed to read mac addr\n"); 1404 1405 netif_carrier_off(netdev); 1406 1407 err = register_netdev(netdev); 1408 if (err) { 1409 dev_err(&pdev->dev, "failed to register net device\n"); 1410 return err; 1411 } 1412 1413 return 0; 1414 } 1415 1416 #define NETXEN_ULA_ADAPTER_KEY (0xdaddad01) 1417 #define NETXEN_NON_ULA_ADAPTER_KEY (0xdaddad00) 1418 1419 static void netxen_read_ula_info(struct netxen_adapter *adapter) 1420 { 1421 u32 temp; 1422 1423 /* Print ULA info only once for an adapter */ 1424 if (adapter->portnum != 0) 1425 return; 1426 1427 temp = NXRD32(adapter, NETXEN_ULA_KEY); 1428 switch (temp) { 1429 case NETXEN_ULA_ADAPTER_KEY: 1430 dev_info(&adapter->pdev->dev, "ULA adapter"); 1431 break; 1432 case NETXEN_NON_ULA_ADAPTER_KEY: 1433 dev_info(&adapter->pdev->dev, "non ULA adapter"); 1434 break; 1435 default: 1436 break; 1437 } 1438 1439 return; 1440 } 1441 1442 #ifdef CONFIG_PCIEAER 1443 static void netxen_mask_aer_correctable(struct netxen_adapter *adapter) 1444 { 1445 struct pci_dev *pdev = adapter->pdev; 1446 struct pci_dev *root = pdev->bus->self; 1447 u32 aer_pos; 1448 1449 /* root bus? */ 1450 if (!root) 1451 return; 1452 1453 if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM && 1454 adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP) 1455 return; 1456 1457 if (pci_pcie_type(root) != PCI_EXP_TYPE_ROOT_PORT) 1458 return; 1459 1460 aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR); 1461 if (!aer_pos) 1462 return; 1463 1464 pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff); 1465 } 1466 #endif 1467 1468 static int 1469 netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 1470 { 1471 struct net_device *netdev = NULL; 1472 struct netxen_adapter *adapter = NULL; 1473 int i = 0, err; 1474 int pci_func_id = PCI_FUNC(pdev->devfn); 1475 uint8_t revision_id; 1476 u32 val; 1477 1478 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) { 1479 pr_warning("%s: chip revisions between 0x%x-0x%x " 1480 "will not be enabled.\n", 1481 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1); 1482 return -ENODEV; 1483 } 1484 1485 if ((err = pci_enable_device(pdev))) 1486 return err; 1487 1488 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { 1489 err = -ENODEV; 1490 goto err_out_disable_pdev; 1491 } 1492 1493 if ((err = pci_request_regions(pdev, netxen_nic_driver_name))) 1494 goto err_out_disable_pdev; 1495 1496 if (NX_IS_REVISION_P3(pdev->revision)) 1497 pci_enable_pcie_error_reporting(pdev); 1498 1499 pci_set_master(pdev); 1500 1501 netdev = alloc_etherdev(sizeof(struct netxen_adapter)); 1502 if(!netdev) { 1503 err = -ENOMEM; 1504 goto err_out_free_res; 1505 } 1506 1507 SET_NETDEV_DEV(netdev, &pdev->dev); 1508 1509 adapter = netdev_priv(netdev); 1510 adapter->netdev = netdev; 1511 adapter->pdev = pdev; 1512 adapter->ahw.pci_func = pci_func_id; 1513 1514 revision_id = pdev->revision; 1515 adapter->ahw.revision_id = revision_id; 1516 1517 rwlock_init(&adapter->ahw.crb_lock); 1518 spin_lock_init(&adapter->ahw.mem_lock); 1519 1520 spin_lock_init(&adapter->tx_clean_lock); 1521 INIT_LIST_HEAD(&adapter->mac_list); 1522 INIT_LIST_HEAD(&adapter->ip_list); 1523 1524 err = netxen_setup_pci_map(adapter); 1525 if (err) 1526 goto err_out_free_netdev; 1527 1528 /* This will be reset for mezz cards */ 1529 adapter->portnum = pci_func_id; 1530 1531 err = netxen_nic_get_board_info(adapter); 1532 if (err) { 1533 dev_err(&pdev->dev, "Error getting board config info.\n"); 1534 goto err_out_iounmap; 1535 } 1536 1537 #ifdef CONFIG_PCIEAER 1538 netxen_mask_aer_correctable(adapter); 1539 #endif 1540 1541 /* Mezz cards have PCI function 0,2,3 enabled */ 1542 switch (adapter->ahw.board_type) { 1543 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ: 1544 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ: 1545 if (pci_func_id >= 2) 1546 adapter->portnum = pci_func_id - 2; 1547 break; 1548 default: 1549 break; 1550 } 1551 1552 err = netxen_check_flash_fw_compatibility(adapter); 1553 if (err) 1554 goto err_out_iounmap; 1555 1556 if (adapter->portnum == 0) { 1557 val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 1558 if (val != 0xffffffff && val != 0) { 1559 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0); 1560 adapter->need_fw_reset = 1; 1561 } 1562 } 1563 1564 err = netxen_start_firmware(adapter); 1565 if (err) 1566 goto err_out_decr_ref; 1567 1568 /* 1569 * See if the firmware gave us a virtual-physical port mapping. 1570 */ 1571 adapter->physical_port = adapter->portnum; 1572 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 1573 i = NXRD32(adapter, CRB_V2P(adapter->portnum)); 1574 if (i != 0x55555555) 1575 adapter->physical_port = i; 1576 } 1577 1578 netxen_nic_clear_stats(adapter); 1579 1580 err = netxen_setup_intr(adapter); 1581 1582 if (err) { 1583 dev_err(&adapter->pdev->dev, 1584 "Failed to setup interrupts, error = %d\n", err); 1585 goto err_out_disable_msi; 1586 } 1587 1588 netxen_read_ula_info(adapter); 1589 1590 err = netxen_setup_netdev(adapter, netdev); 1591 if (err) 1592 goto err_out_disable_msi; 1593 1594 pci_set_drvdata(pdev, adapter); 1595 1596 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 1597 1598 switch (adapter->ahw.port_type) { 1599 case NETXEN_NIC_GBE: 1600 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n", 1601 adapter->netdev->name); 1602 break; 1603 case NETXEN_NIC_XGBE: 1604 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n", 1605 adapter->netdev->name); 1606 break; 1607 } 1608 1609 netxen_create_diag_entries(adapter); 1610 1611 return 0; 1612 1613 err_out_disable_msi: 1614 netxen_teardown_intr(adapter); 1615 1616 netxen_free_dummy_dma(adapter); 1617 1618 err_out_decr_ref: 1619 nx_decr_dev_ref_cnt(adapter); 1620 1621 err_out_iounmap: 1622 netxen_cleanup_pci_map(adapter); 1623 1624 err_out_free_netdev: 1625 free_netdev(netdev); 1626 1627 err_out_free_res: 1628 pci_release_regions(pdev); 1629 1630 err_out_disable_pdev: 1631 pci_disable_device(pdev); 1632 return err; 1633 } 1634 1635 static 1636 void netxen_cleanup_minidump(struct netxen_adapter *adapter) 1637 { 1638 kfree(adapter->mdump.md_template); 1639 adapter->mdump.md_template = NULL; 1640 1641 if (adapter->mdump.md_capture_buff) { 1642 vfree(adapter->mdump.md_capture_buff); 1643 adapter->mdump.md_capture_buff = NULL; 1644 } 1645 } 1646 1647 static void netxen_nic_remove(struct pci_dev *pdev) 1648 { 1649 struct netxen_adapter *adapter; 1650 struct net_device *netdev; 1651 1652 adapter = pci_get_drvdata(pdev); 1653 if (adapter == NULL) 1654 return; 1655 1656 netdev = adapter->netdev; 1657 1658 netxen_cancel_fw_work(adapter); 1659 1660 unregister_netdev(netdev); 1661 1662 cancel_work_sync(&adapter->tx_timeout_task); 1663 1664 netxen_free_ip_list(adapter, false); 1665 netxen_nic_detach(adapter); 1666 1667 nx_decr_dev_ref_cnt(adapter); 1668 1669 if (adapter->portnum == 0) 1670 netxen_free_dummy_dma(adapter); 1671 1672 clear_bit(__NX_RESETTING, &adapter->state); 1673 1674 netxen_teardown_intr(adapter); 1675 netxen_set_interrupt_mode(adapter, 0); 1676 netxen_remove_diag_entries(adapter); 1677 1678 netxen_cleanup_pci_map(adapter); 1679 1680 netxen_release_firmware(adapter); 1681 1682 if (NX_IS_REVISION_P3(pdev->revision)) { 1683 netxen_cleanup_minidump(adapter); 1684 pci_disable_pcie_error_reporting(pdev); 1685 } 1686 1687 pci_release_regions(pdev); 1688 pci_disable_device(pdev); 1689 1690 free_netdev(netdev); 1691 } 1692 1693 static void netxen_nic_detach_func(struct netxen_adapter *adapter) 1694 { 1695 struct net_device *netdev = adapter->netdev; 1696 1697 netif_device_detach(netdev); 1698 1699 netxen_cancel_fw_work(adapter); 1700 1701 if (netif_running(netdev)) 1702 netxen_nic_down(adapter, netdev); 1703 1704 cancel_work_sync(&adapter->tx_timeout_task); 1705 1706 netxen_nic_detach(adapter); 1707 1708 if (adapter->portnum == 0) 1709 netxen_free_dummy_dma(adapter); 1710 1711 nx_decr_dev_ref_cnt(adapter); 1712 1713 clear_bit(__NX_RESETTING, &adapter->state); 1714 } 1715 1716 static int netxen_nic_attach_func(struct pci_dev *pdev) 1717 { 1718 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1719 struct net_device *netdev = adapter->netdev; 1720 int err; 1721 1722 err = pci_enable_device(pdev); 1723 if (err) 1724 return err; 1725 1726 pci_set_power_state(pdev, PCI_D0); 1727 pci_set_master(pdev); 1728 pci_restore_state(pdev); 1729 1730 adapter->ahw.crb_win = -1; 1731 adapter->ahw.ocm_win = -1; 1732 1733 err = netxen_start_firmware(adapter); 1734 if (err) { 1735 dev_err(&pdev->dev, "failed to start firmware\n"); 1736 return err; 1737 } 1738 1739 if (netif_running(netdev)) { 1740 err = netxen_nic_attach(adapter); 1741 if (err) 1742 goto err_out; 1743 1744 err = netxen_nic_up(adapter, netdev); 1745 if (err) 1746 goto err_out_detach; 1747 1748 netxen_restore_indev_addr(netdev, NETDEV_UP); 1749 } 1750 1751 netif_device_attach(netdev); 1752 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 1753 return 0; 1754 1755 err_out_detach: 1756 netxen_nic_detach(adapter); 1757 err_out: 1758 nx_decr_dev_ref_cnt(adapter); 1759 return err; 1760 } 1761 1762 static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev, 1763 pci_channel_state_t state) 1764 { 1765 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1766 1767 if (state == pci_channel_io_perm_failure) 1768 return PCI_ERS_RESULT_DISCONNECT; 1769 1770 if (nx_dev_request_aer(adapter)) 1771 return PCI_ERS_RESULT_RECOVERED; 1772 1773 netxen_nic_detach_func(adapter); 1774 1775 pci_disable_device(pdev); 1776 1777 return PCI_ERS_RESULT_NEED_RESET; 1778 } 1779 1780 static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev) 1781 { 1782 int err = 0; 1783 1784 err = netxen_nic_attach_func(pdev); 1785 1786 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED; 1787 } 1788 1789 static void netxen_io_resume(struct pci_dev *pdev) 1790 { 1791 pci_cleanup_aer_uncorrect_error_status(pdev); 1792 } 1793 1794 static void netxen_nic_shutdown(struct pci_dev *pdev) 1795 { 1796 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1797 1798 netxen_nic_detach_func(adapter); 1799 1800 if (pci_save_state(pdev)) 1801 return; 1802 1803 if (netxen_nic_wol_supported(adapter)) { 1804 pci_enable_wake(pdev, PCI_D3cold, 1); 1805 pci_enable_wake(pdev, PCI_D3hot, 1); 1806 } 1807 1808 pci_disable_device(pdev); 1809 } 1810 1811 #ifdef CONFIG_PM 1812 static int 1813 netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state) 1814 { 1815 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1816 int retval; 1817 1818 netxen_nic_detach_func(adapter); 1819 1820 retval = pci_save_state(pdev); 1821 if (retval) 1822 return retval; 1823 1824 if (netxen_nic_wol_supported(adapter)) { 1825 pci_enable_wake(pdev, PCI_D3cold, 1); 1826 pci_enable_wake(pdev, PCI_D3hot, 1); 1827 } 1828 1829 pci_disable_device(pdev); 1830 pci_set_power_state(pdev, pci_choose_state(pdev, state)); 1831 1832 return 0; 1833 } 1834 1835 static int 1836 netxen_nic_resume(struct pci_dev *pdev) 1837 { 1838 return netxen_nic_attach_func(pdev); 1839 } 1840 #endif 1841 1842 static int netxen_nic_open(struct net_device *netdev) 1843 { 1844 struct netxen_adapter *adapter = netdev_priv(netdev); 1845 int err = 0; 1846 1847 if (adapter->driver_mismatch) 1848 return -EIO; 1849 1850 err = netxen_nic_attach(adapter); 1851 if (err) 1852 return err; 1853 1854 err = __netxen_nic_up(adapter, netdev); 1855 if (err) 1856 goto err_out; 1857 1858 netif_start_queue(netdev); 1859 1860 return 0; 1861 1862 err_out: 1863 netxen_nic_detach(adapter); 1864 return err; 1865 } 1866 1867 /* 1868 * netxen_nic_close - Disables a network interface entry point 1869 */ 1870 static int netxen_nic_close(struct net_device *netdev) 1871 { 1872 struct netxen_adapter *adapter = netdev_priv(netdev); 1873 1874 __netxen_nic_down(adapter, netdev); 1875 return 0; 1876 } 1877 1878 static void 1879 netxen_tso_check(struct net_device *netdev, 1880 struct nx_host_tx_ring *tx_ring, 1881 struct cmd_desc_type0 *first_desc, 1882 struct sk_buff *skb) 1883 { 1884 u8 opcode = TX_ETHER_PKT; 1885 __be16 protocol = skb->protocol; 1886 u16 flags = 0, vid = 0; 1887 u32 producer; 1888 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0; 1889 struct cmd_desc_type0 *hwdesc; 1890 struct vlan_ethhdr *vh; 1891 1892 if (protocol == cpu_to_be16(ETH_P_8021Q)) { 1893 1894 vh = (struct vlan_ethhdr *)skb->data; 1895 protocol = vh->h_vlan_encapsulated_proto; 1896 flags = FLAGS_VLAN_TAGGED; 1897 1898 } else if (vlan_tx_tag_present(skb)) { 1899 flags = FLAGS_VLAN_OOB; 1900 vid = vlan_tx_tag_get(skb); 1901 netxen_set_tx_vlan_tci(first_desc, vid); 1902 vlan_oob = 1; 1903 } 1904 1905 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) && 1906 skb_shinfo(skb)->gso_size > 0) { 1907 1908 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); 1909 1910 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); 1911 first_desc->total_hdr_length = hdr_len; 1912 if (vlan_oob) { 1913 first_desc->total_hdr_length += VLAN_HLEN; 1914 first_desc->tcp_hdr_offset = VLAN_HLEN; 1915 first_desc->ip_hdr_offset = VLAN_HLEN; 1916 /* Only in case of TSO on vlan device */ 1917 flags |= FLAGS_VLAN_TAGGED; 1918 } 1919 1920 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ? 1921 TX_TCP_LSO6 : TX_TCP_LSO; 1922 tso = 1; 1923 1924 } else if (skb->ip_summed == CHECKSUM_PARTIAL) { 1925 u8 l4proto; 1926 1927 if (protocol == cpu_to_be16(ETH_P_IP)) { 1928 l4proto = ip_hdr(skb)->protocol; 1929 1930 if (l4proto == IPPROTO_TCP) 1931 opcode = TX_TCP_PKT; 1932 else if(l4proto == IPPROTO_UDP) 1933 opcode = TX_UDP_PKT; 1934 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) { 1935 l4proto = ipv6_hdr(skb)->nexthdr; 1936 1937 if (l4proto == IPPROTO_TCP) 1938 opcode = TX_TCPV6_PKT; 1939 else if(l4proto == IPPROTO_UDP) 1940 opcode = TX_UDPV6_PKT; 1941 } 1942 } 1943 1944 first_desc->tcp_hdr_offset += skb_transport_offset(skb); 1945 first_desc->ip_hdr_offset += skb_network_offset(skb); 1946 netxen_set_tx_flags_opcode(first_desc, flags, opcode); 1947 1948 if (!tso) 1949 return; 1950 1951 /* For LSO, we need to copy the MAC/IP/TCP headers into 1952 * the descriptor ring 1953 */ 1954 producer = tx_ring->producer; 1955 copied = 0; 1956 offset = 2; 1957 1958 if (vlan_oob) { 1959 /* Create a TSO vlan header template for firmware */ 1960 1961 hwdesc = &tx_ring->desc_head[producer]; 1962 tx_ring->cmd_buf_arr[producer].skb = NULL; 1963 1964 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset, 1965 hdr_len + VLAN_HLEN); 1966 1967 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2); 1968 skb_copy_from_linear_data(skb, vh, 12); 1969 vh->h_vlan_proto = htons(ETH_P_8021Q); 1970 vh->h_vlan_TCI = htons(vid); 1971 skb_copy_from_linear_data_offset(skb, 12, 1972 (char *)vh + 16, copy_len - 16); 1973 1974 copied = copy_len - VLAN_HLEN; 1975 offset = 0; 1976 1977 producer = get_next_index(producer, tx_ring->num_desc); 1978 } 1979 1980 while (copied < hdr_len) { 1981 1982 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset, 1983 (hdr_len - copied)); 1984 1985 hwdesc = &tx_ring->desc_head[producer]; 1986 tx_ring->cmd_buf_arr[producer].skb = NULL; 1987 1988 skb_copy_from_linear_data_offset(skb, copied, 1989 (char *)hwdesc + offset, copy_len); 1990 1991 copied += copy_len; 1992 offset = 0; 1993 1994 producer = get_next_index(producer, tx_ring->num_desc); 1995 } 1996 1997 tx_ring->producer = producer; 1998 barrier(); 1999 } 2000 2001 static int 2002 netxen_map_tx_skb(struct pci_dev *pdev, 2003 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf) 2004 { 2005 struct netxen_skb_frag *nf; 2006 struct skb_frag_struct *frag; 2007 int i, nr_frags; 2008 dma_addr_t map; 2009 2010 nr_frags = skb_shinfo(skb)->nr_frags; 2011 nf = &pbuf->frag_array[0]; 2012 2013 map = pci_map_single(pdev, skb->data, 2014 skb_headlen(skb), PCI_DMA_TODEVICE); 2015 if (pci_dma_mapping_error(pdev, map)) 2016 goto out_err; 2017 2018 nf->dma = map; 2019 nf->length = skb_headlen(skb); 2020 2021 for (i = 0; i < nr_frags; i++) { 2022 frag = &skb_shinfo(skb)->frags[i]; 2023 nf = &pbuf->frag_array[i+1]; 2024 2025 map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag), 2026 DMA_TO_DEVICE); 2027 if (dma_mapping_error(&pdev->dev, map)) 2028 goto unwind; 2029 2030 nf->dma = map; 2031 nf->length = skb_frag_size(frag); 2032 } 2033 2034 return 0; 2035 2036 unwind: 2037 while (--i >= 0) { 2038 nf = &pbuf->frag_array[i+1]; 2039 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE); 2040 nf->dma = 0ULL; 2041 } 2042 2043 nf = &pbuf->frag_array[0]; 2044 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE); 2045 nf->dma = 0ULL; 2046 2047 out_err: 2048 return -ENOMEM; 2049 } 2050 2051 static inline void 2052 netxen_clear_cmddesc(u64 *desc) 2053 { 2054 desc[0] = 0ULL; 2055 desc[2] = 0ULL; 2056 } 2057 2058 static netdev_tx_t 2059 netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) 2060 { 2061 struct netxen_adapter *adapter = netdev_priv(netdev); 2062 struct nx_host_tx_ring *tx_ring = adapter->tx_ring; 2063 struct netxen_cmd_buffer *pbuf; 2064 struct netxen_skb_frag *buffrag; 2065 struct cmd_desc_type0 *hwdesc, *first_desc; 2066 struct pci_dev *pdev; 2067 int i, k; 2068 int delta = 0; 2069 struct skb_frag_struct *frag; 2070 2071 u32 producer; 2072 int frag_count, no_of_desc; 2073 u32 num_txd = tx_ring->num_desc; 2074 2075 frag_count = skb_shinfo(skb)->nr_frags + 1; 2076 2077 /* 14 frags supported for normal packet and 2078 * 32 frags supported for TSO packet 2079 */ 2080 if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) { 2081 2082 for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) { 2083 frag = &skb_shinfo(skb)->frags[i]; 2084 delta += skb_frag_size(frag); 2085 } 2086 2087 if (!__pskb_pull_tail(skb, delta)) 2088 goto drop_packet; 2089 2090 frag_count = 1 + skb_shinfo(skb)->nr_frags; 2091 } 2092 /* 4 fragments per cmd des */ 2093 no_of_desc = (frag_count + 3) >> 2; 2094 2095 if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) { 2096 netif_stop_queue(netdev); 2097 smp_mb(); 2098 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH) 2099 netif_start_queue(netdev); 2100 else 2101 return NETDEV_TX_BUSY; 2102 } 2103 2104 producer = tx_ring->producer; 2105 pbuf = &tx_ring->cmd_buf_arr[producer]; 2106 2107 pdev = adapter->pdev; 2108 2109 if (netxen_map_tx_skb(pdev, skb, pbuf)) 2110 goto drop_packet; 2111 2112 pbuf->skb = skb; 2113 pbuf->frag_count = frag_count; 2114 2115 first_desc = hwdesc = &tx_ring->desc_head[producer]; 2116 netxen_clear_cmddesc((u64 *)hwdesc); 2117 2118 netxen_set_tx_frags_len(first_desc, frag_count, skb->len); 2119 netxen_set_tx_port(first_desc, adapter->portnum); 2120 2121 for (i = 0; i < frag_count; i++) { 2122 2123 k = i % 4; 2124 2125 if ((k == 0) && (i > 0)) { 2126 /* move to next desc.*/ 2127 producer = get_next_index(producer, num_txd); 2128 hwdesc = &tx_ring->desc_head[producer]; 2129 netxen_clear_cmddesc((u64 *)hwdesc); 2130 tx_ring->cmd_buf_arr[producer].skb = NULL; 2131 } 2132 2133 buffrag = &pbuf->frag_array[i]; 2134 2135 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length); 2136 switch (k) { 2137 case 0: 2138 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma); 2139 break; 2140 case 1: 2141 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma); 2142 break; 2143 case 2: 2144 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma); 2145 break; 2146 case 3: 2147 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma); 2148 break; 2149 } 2150 } 2151 2152 tx_ring->producer = get_next_index(producer, num_txd); 2153 2154 netxen_tso_check(netdev, tx_ring, first_desc, skb); 2155 2156 adapter->stats.txbytes += skb->len; 2157 adapter->stats.xmitcalled++; 2158 2159 netxen_nic_update_cmd_producer(adapter, tx_ring); 2160 2161 return NETDEV_TX_OK; 2162 2163 drop_packet: 2164 adapter->stats.txdropped++; 2165 dev_kfree_skb_any(skb); 2166 return NETDEV_TX_OK; 2167 } 2168 2169 static int netxen_nic_check_temp(struct netxen_adapter *adapter) 2170 { 2171 struct net_device *netdev = adapter->netdev; 2172 uint32_t temp, temp_state, temp_val; 2173 int rv = 0; 2174 2175 temp = NXRD32(adapter, CRB_TEMP_STATE); 2176 2177 temp_state = nx_get_temp_state(temp); 2178 temp_val = nx_get_temp_val(temp); 2179 2180 if (temp_state == NX_TEMP_PANIC) { 2181 printk(KERN_ALERT 2182 "%s: Device temperature %d degrees C exceeds" 2183 " maximum allowed. Hardware has been shut down.\n", 2184 netdev->name, temp_val); 2185 rv = 1; 2186 } else if (temp_state == NX_TEMP_WARN) { 2187 if (adapter->temp == NX_TEMP_NORMAL) { 2188 printk(KERN_ALERT 2189 "%s: Device temperature %d degrees C " 2190 "exceeds operating range." 2191 " Immediate action needed.\n", 2192 netdev->name, temp_val); 2193 } 2194 } else { 2195 if (adapter->temp == NX_TEMP_WARN) { 2196 printk(KERN_INFO 2197 "%s: Device temperature is now %d degrees C" 2198 " in normal range.\n", netdev->name, 2199 temp_val); 2200 } 2201 } 2202 adapter->temp = temp_state; 2203 return rv; 2204 } 2205 2206 void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup) 2207 { 2208 struct net_device *netdev = adapter->netdev; 2209 2210 if (adapter->ahw.linkup && !linkup) { 2211 printk(KERN_INFO "%s: %s NIC Link is down\n", 2212 netxen_nic_driver_name, netdev->name); 2213 adapter->ahw.linkup = 0; 2214 if (netif_running(netdev)) { 2215 netif_carrier_off(netdev); 2216 netif_stop_queue(netdev); 2217 } 2218 adapter->link_changed = !adapter->has_link_events; 2219 } else if (!adapter->ahw.linkup && linkup) { 2220 printk(KERN_INFO "%s: %s NIC Link is up\n", 2221 netxen_nic_driver_name, netdev->name); 2222 adapter->ahw.linkup = 1; 2223 if (netif_running(netdev)) { 2224 netif_carrier_on(netdev); 2225 netif_wake_queue(netdev); 2226 } 2227 adapter->link_changed = !adapter->has_link_events; 2228 } 2229 } 2230 2231 static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter) 2232 { 2233 u32 val, port, linkup; 2234 2235 port = adapter->physical_port; 2236 2237 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 2238 val = NXRD32(adapter, CRB_XG_STATE_P3); 2239 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val); 2240 linkup = (val == XG_LINK_UP_P3); 2241 } else { 2242 val = NXRD32(adapter, CRB_XG_STATE); 2243 val = (val >> port*8) & 0xff; 2244 linkup = (val == XG_LINK_UP); 2245 } 2246 2247 netxen_advert_link_change(adapter, linkup); 2248 } 2249 2250 static void netxen_tx_timeout(struct net_device *netdev) 2251 { 2252 struct netxen_adapter *adapter = netdev_priv(netdev); 2253 2254 if (test_bit(__NX_RESETTING, &adapter->state)) 2255 return; 2256 2257 dev_err(&netdev->dev, "transmit timeout, resetting.\n"); 2258 schedule_work(&adapter->tx_timeout_task); 2259 } 2260 2261 static void netxen_tx_timeout_task(struct work_struct *work) 2262 { 2263 struct netxen_adapter *adapter = 2264 container_of(work, struct netxen_adapter, tx_timeout_task); 2265 2266 if (!netif_running(adapter->netdev)) 2267 return; 2268 2269 if (test_and_set_bit(__NX_RESETTING, &adapter->state)) 2270 return; 2271 2272 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS) 2273 goto request_reset; 2274 2275 rtnl_lock(); 2276 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 2277 /* try to scrub interrupt */ 2278 netxen_napi_disable(adapter); 2279 2280 netxen_napi_enable(adapter); 2281 2282 netif_wake_queue(adapter->netdev); 2283 2284 clear_bit(__NX_RESETTING, &adapter->state); 2285 } else { 2286 clear_bit(__NX_RESETTING, &adapter->state); 2287 if (netxen_nic_reset_context(adapter)) { 2288 rtnl_unlock(); 2289 goto request_reset; 2290 } 2291 } 2292 adapter->netdev->trans_start = jiffies; 2293 rtnl_unlock(); 2294 return; 2295 2296 request_reset: 2297 adapter->need_fw_reset = 1; 2298 clear_bit(__NX_RESETTING, &adapter->state); 2299 } 2300 2301 static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *netdev, 2302 struct rtnl_link_stats64 *stats) 2303 { 2304 struct netxen_adapter *adapter = netdev_priv(netdev); 2305 2306 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts; 2307 stats->tx_packets = adapter->stats.xmitfinished; 2308 stats->rx_bytes = adapter->stats.rxbytes; 2309 stats->tx_bytes = adapter->stats.txbytes; 2310 stats->rx_dropped = adapter->stats.rxdropped; 2311 stats->tx_dropped = adapter->stats.txdropped; 2312 2313 return stats; 2314 } 2315 2316 static irqreturn_t netxen_intr(int irq, void *data) 2317 { 2318 struct nx_host_sds_ring *sds_ring = data; 2319 struct netxen_adapter *adapter = sds_ring->adapter; 2320 u32 status = 0; 2321 2322 status = readl(adapter->isr_int_vec); 2323 2324 if (!(status & adapter->int_vec_bit)) 2325 return IRQ_NONE; 2326 2327 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 2328 /* check interrupt state machine, to be sure */ 2329 status = readl(adapter->crb_int_state_reg); 2330 if (!ISR_LEGACY_INT_TRIGGERED(status)) 2331 return IRQ_NONE; 2332 2333 } else { 2334 unsigned long our_int = 0; 2335 2336 our_int = readl(adapter->crb_int_state_reg); 2337 2338 /* not our interrupt */ 2339 if (!test_and_clear_bit((7 + adapter->portnum), &our_int)) 2340 return IRQ_NONE; 2341 2342 /* claim interrupt */ 2343 writel((our_int & 0xffffffff), adapter->crb_int_state_reg); 2344 2345 /* clear interrupt */ 2346 netxen_nic_disable_int(sds_ring); 2347 } 2348 2349 writel(0xffffffff, adapter->tgt_status_reg); 2350 /* read twice to ensure write is flushed */ 2351 readl(adapter->isr_int_vec); 2352 readl(adapter->isr_int_vec); 2353 2354 napi_schedule(&sds_ring->napi); 2355 2356 return IRQ_HANDLED; 2357 } 2358 2359 static irqreturn_t netxen_msi_intr(int irq, void *data) 2360 { 2361 struct nx_host_sds_ring *sds_ring = data; 2362 struct netxen_adapter *adapter = sds_ring->adapter; 2363 2364 /* clear interrupt */ 2365 writel(0xffffffff, adapter->tgt_status_reg); 2366 2367 napi_schedule(&sds_ring->napi); 2368 return IRQ_HANDLED; 2369 } 2370 2371 static irqreturn_t netxen_msix_intr(int irq, void *data) 2372 { 2373 struct nx_host_sds_ring *sds_ring = data; 2374 2375 napi_schedule(&sds_ring->napi); 2376 return IRQ_HANDLED; 2377 } 2378 2379 static int netxen_nic_poll(struct napi_struct *napi, int budget) 2380 { 2381 struct nx_host_sds_ring *sds_ring = 2382 container_of(napi, struct nx_host_sds_ring, napi); 2383 2384 struct netxen_adapter *adapter = sds_ring->adapter; 2385 2386 int tx_complete; 2387 int work_done; 2388 2389 tx_complete = netxen_process_cmd_ring(adapter); 2390 2391 work_done = netxen_process_rcv_ring(sds_ring, budget); 2392 2393 if ((work_done < budget) && tx_complete) { 2394 napi_complete(&sds_ring->napi); 2395 if (test_bit(__NX_DEV_UP, &adapter->state)) 2396 netxen_nic_enable_int(sds_ring); 2397 } 2398 2399 return work_done; 2400 } 2401 2402 #ifdef CONFIG_NET_POLL_CONTROLLER 2403 static void netxen_nic_poll_controller(struct net_device *netdev) 2404 { 2405 int ring; 2406 struct nx_host_sds_ring *sds_ring; 2407 struct netxen_adapter *adapter = netdev_priv(netdev); 2408 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 2409 2410 disable_irq(adapter->irq); 2411 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 2412 sds_ring = &recv_ctx->sds_rings[ring]; 2413 netxen_intr(adapter->irq, sds_ring); 2414 } 2415 enable_irq(adapter->irq); 2416 } 2417 #endif 2418 2419 static int 2420 nx_incr_dev_ref_cnt(struct netxen_adapter *adapter) 2421 { 2422 int count; 2423 if (netxen_api_lock(adapter)) 2424 return -EIO; 2425 2426 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2427 2428 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count); 2429 2430 netxen_api_unlock(adapter); 2431 return count; 2432 } 2433 2434 static int 2435 nx_decr_dev_ref_cnt(struct netxen_adapter *adapter) 2436 { 2437 int count, state; 2438 if (netxen_api_lock(adapter)) 2439 return -EIO; 2440 2441 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2442 WARN_ON(count == 0); 2443 2444 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count); 2445 state = NXRD32(adapter, NX_CRB_DEV_STATE); 2446 2447 if (count == 0 && state != NX_DEV_FAILED) 2448 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD); 2449 2450 netxen_api_unlock(adapter); 2451 return count; 2452 } 2453 2454 static int 2455 nx_dev_request_aer(struct netxen_adapter *adapter) 2456 { 2457 u32 state; 2458 int ret = -EINVAL; 2459 2460 if (netxen_api_lock(adapter)) 2461 return ret; 2462 2463 state = NXRD32(adapter, NX_CRB_DEV_STATE); 2464 2465 if (state == NX_DEV_NEED_AER) 2466 ret = 0; 2467 else if (state == NX_DEV_READY) { 2468 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER); 2469 ret = 0; 2470 } 2471 2472 netxen_api_unlock(adapter); 2473 return ret; 2474 } 2475 2476 int 2477 nx_dev_request_reset(struct netxen_adapter *adapter) 2478 { 2479 u32 state; 2480 int ret = -EINVAL; 2481 2482 if (netxen_api_lock(adapter)) 2483 return ret; 2484 2485 state = NXRD32(adapter, NX_CRB_DEV_STATE); 2486 2487 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) 2488 ret = 0; 2489 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) { 2490 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET); 2491 adapter->flags |= NETXEN_FW_RESET_OWNER; 2492 ret = 0; 2493 } 2494 2495 netxen_api_unlock(adapter); 2496 2497 return ret; 2498 } 2499 2500 static int 2501 netxen_can_start_firmware(struct netxen_adapter *adapter) 2502 { 2503 int count; 2504 int can_start = 0; 2505 2506 if (netxen_api_lock(adapter)) { 2507 nx_incr_dev_ref_cnt(adapter); 2508 return -1; 2509 } 2510 2511 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2512 2513 if ((count < 0) || (count >= NX_MAX_PCI_FUNC)) 2514 count = 0; 2515 2516 if (count == 0) { 2517 can_start = 1; 2518 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING); 2519 } 2520 2521 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count); 2522 2523 netxen_api_unlock(adapter); 2524 2525 return can_start; 2526 } 2527 2528 static void 2529 netxen_schedule_work(struct netxen_adapter *adapter, 2530 work_func_t func, int delay) 2531 { 2532 INIT_DELAYED_WORK(&adapter->fw_work, func); 2533 schedule_delayed_work(&adapter->fw_work, delay); 2534 } 2535 2536 static void 2537 netxen_cancel_fw_work(struct netxen_adapter *adapter) 2538 { 2539 while (test_and_set_bit(__NX_RESETTING, &adapter->state)) 2540 msleep(10); 2541 2542 cancel_delayed_work_sync(&adapter->fw_work); 2543 } 2544 2545 static void 2546 netxen_attach_work(struct work_struct *work) 2547 { 2548 struct netxen_adapter *adapter = container_of(work, 2549 struct netxen_adapter, fw_work.work); 2550 struct net_device *netdev = adapter->netdev; 2551 int err = 0; 2552 2553 if (netif_running(netdev)) { 2554 err = netxen_nic_attach(adapter); 2555 if (err) 2556 goto done; 2557 2558 err = netxen_nic_up(adapter, netdev); 2559 if (err) { 2560 netxen_nic_detach(adapter); 2561 goto done; 2562 } 2563 2564 netxen_restore_indev_addr(netdev, NETDEV_UP); 2565 } 2566 2567 netif_device_attach(netdev); 2568 2569 done: 2570 adapter->fw_fail_cnt = 0; 2571 clear_bit(__NX_RESETTING, &adapter->state); 2572 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 2573 } 2574 2575 static void 2576 netxen_fwinit_work(struct work_struct *work) 2577 { 2578 struct netxen_adapter *adapter = container_of(work, 2579 struct netxen_adapter, fw_work.work); 2580 int dev_state; 2581 int count; 2582 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE); 2583 if (adapter->flags & NETXEN_FW_RESET_OWNER) { 2584 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2585 WARN_ON(count == 0); 2586 if (count == 1) { 2587 if (adapter->mdump.md_enabled) { 2588 rtnl_lock(); 2589 netxen_dump_fw(adapter); 2590 rtnl_unlock(); 2591 } 2592 adapter->flags &= ~NETXEN_FW_RESET_OWNER; 2593 if (netxen_api_lock(adapter)) { 2594 clear_bit(__NX_RESETTING, &adapter->state); 2595 NXWR32(adapter, NX_CRB_DEV_STATE, 2596 NX_DEV_FAILED); 2597 return; 2598 } 2599 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2600 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count); 2601 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD); 2602 dev_state = NX_DEV_COLD; 2603 netxen_api_unlock(adapter); 2604 } 2605 } 2606 2607 switch (dev_state) { 2608 case NX_DEV_COLD: 2609 case NX_DEV_READY: 2610 if (!netxen_start_firmware(adapter)) { 2611 netxen_schedule_work(adapter, netxen_attach_work, 0); 2612 return; 2613 } 2614 break; 2615 2616 case NX_DEV_NEED_RESET: 2617 case NX_DEV_INITALIZING: 2618 netxen_schedule_work(adapter, 2619 netxen_fwinit_work, 2 * FW_POLL_DELAY); 2620 return; 2621 2622 case NX_DEV_FAILED: 2623 default: 2624 nx_incr_dev_ref_cnt(adapter); 2625 break; 2626 } 2627 2628 if (netxen_api_lock(adapter)) { 2629 clear_bit(__NX_RESETTING, &adapter->state); 2630 return; 2631 } 2632 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_FAILED); 2633 netxen_api_unlock(adapter); 2634 dev_err(&adapter->pdev->dev, "%s: Device initialization Failed\n", 2635 adapter->netdev->name); 2636 2637 clear_bit(__NX_RESETTING, &adapter->state); 2638 } 2639 2640 static void 2641 netxen_detach_work(struct work_struct *work) 2642 { 2643 struct netxen_adapter *adapter = container_of(work, 2644 struct netxen_adapter, fw_work.work); 2645 struct net_device *netdev = adapter->netdev; 2646 int ref_cnt = 0, delay; 2647 u32 status; 2648 2649 netif_device_detach(netdev); 2650 2651 netxen_nic_down(adapter, netdev); 2652 2653 rtnl_lock(); 2654 netxen_nic_detach(adapter); 2655 rtnl_unlock(); 2656 2657 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1); 2658 2659 if (status & NX_RCODE_FATAL_ERROR) 2660 goto err_ret; 2661 2662 if (adapter->temp == NX_TEMP_PANIC) 2663 goto err_ret; 2664 2665 if (!(adapter->flags & NETXEN_FW_RESET_OWNER)) 2666 ref_cnt = nx_decr_dev_ref_cnt(adapter); 2667 2668 if (ref_cnt == -EIO) 2669 goto err_ret; 2670 2671 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY); 2672 2673 adapter->fw_wait_cnt = 0; 2674 netxen_schedule_work(adapter, netxen_fwinit_work, delay); 2675 2676 return; 2677 2678 err_ret: 2679 clear_bit(__NX_RESETTING, &adapter->state); 2680 } 2681 2682 static int 2683 netxen_check_health(struct netxen_adapter *adapter) 2684 { 2685 u32 state, heartbit; 2686 u32 peg_status; 2687 struct net_device *netdev = adapter->netdev; 2688 2689 state = NXRD32(adapter, NX_CRB_DEV_STATE); 2690 if (state == NX_DEV_NEED_AER) 2691 return 0; 2692 2693 if (netxen_nic_check_temp(adapter)) 2694 goto detach; 2695 2696 if (adapter->need_fw_reset) { 2697 if (nx_dev_request_reset(adapter)) 2698 return 0; 2699 goto detach; 2700 } 2701 2702 /* NX_DEV_NEED_RESET, this state can be marked in two cases 2703 * 1. Tx timeout 2. Fw hang 2704 * Send request to destroy context in case of tx timeout only 2705 * and doesn't required in case of Fw hang 2706 */ 2707 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) { 2708 adapter->need_fw_reset = 1; 2709 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 2710 goto detach; 2711 } 2712 2713 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 2714 return 0; 2715 2716 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER); 2717 if (heartbit != adapter->heartbit) { 2718 adapter->heartbit = heartbit; 2719 adapter->fw_fail_cnt = 0; 2720 if (adapter->need_fw_reset) 2721 goto detach; 2722 return 0; 2723 } 2724 2725 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH) 2726 return 0; 2727 2728 if (nx_dev_request_reset(adapter)) 2729 return 0; 2730 2731 clear_bit(__NX_FW_ATTACHED, &adapter->state); 2732 2733 dev_err(&netdev->dev, "firmware hang detected\n"); 2734 peg_status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1); 2735 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n" 2736 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n" 2737 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n" 2738 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n" 2739 "PEG_NET_4_PC: 0x%x\n", 2740 peg_status, 2741 NXRD32(adapter, NETXEN_PEG_HALT_STATUS2), 2742 NXRD32(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c), 2743 NXRD32(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c), 2744 NXRD32(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c), 2745 NXRD32(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c), 2746 NXRD32(adapter, NETXEN_CRB_PEG_NET_4 + 0x3c)); 2747 if (NX_FWERROR_PEGSTAT1(peg_status) == 0x67) 2748 dev_err(&adapter->pdev->dev, 2749 "Firmware aborted with error code 0x00006700. " 2750 "Device is being reset.\n"); 2751 detach: 2752 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) && 2753 !test_and_set_bit(__NX_RESETTING, &adapter->state)) 2754 netxen_schedule_work(adapter, netxen_detach_work, 0); 2755 return 1; 2756 } 2757 2758 static void 2759 netxen_fw_poll_work(struct work_struct *work) 2760 { 2761 struct netxen_adapter *adapter = container_of(work, 2762 struct netxen_adapter, fw_work.work); 2763 2764 if (test_bit(__NX_RESETTING, &adapter->state)) 2765 goto reschedule; 2766 2767 if (test_bit(__NX_DEV_UP, &adapter->state)) { 2768 if (!adapter->has_link_events) { 2769 2770 netxen_nic_handle_phy_intr(adapter); 2771 2772 if (adapter->link_changed) 2773 netxen_nic_set_link_parameters(adapter); 2774 } 2775 } 2776 2777 if (netxen_check_health(adapter)) 2778 return; 2779 2780 reschedule: 2781 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 2782 } 2783 2784 static ssize_t 2785 netxen_store_bridged_mode(struct device *dev, 2786 struct device_attribute *attr, const char *buf, size_t len) 2787 { 2788 struct net_device *net = to_net_dev(dev); 2789 struct netxen_adapter *adapter = netdev_priv(net); 2790 unsigned long new; 2791 int ret = -EINVAL; 2792 2793 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG)) 2794 goto err_out; 2795 2796 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 2797 goto err_out; 2798 2799 if (kstrtoul(buf, 2, &new)) 2800 goto err_out; 2801 2802 if (!netxen_config_bridged_mode(adapter, !!new)) 2803 ret = len; 2804 2805 err_out: 2806 return ret; 2807 } 2808 2809 static ssize_t 2810 netxen_show_bridged_mode(struct device *dev, 2811 struct device_attribute *attr, char *buf) 2812 { 2813 struct net_device *net = to_net_dev(dev); 2814 struct netxen_adapter *adapter; 2815 int bridged_mode = 0; 2816 2817 adapter = netdev_priv(net); 2818 2819 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) 2820 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED); 2821 2822 return sprintf(buf, "%d\n", bridged_mode); 2823 } 2824 2825 static struct device_attribute dev_attr_bridged_mode = { 2826 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)}, 2827 .show = netxen_show_bridged_mode, 2828 .store = netxen_store_bridged_mode, 2829 }; 2830 2831 static ssize_t 2832 netxen_store_diag_mode(struct device *dev, 2833 struct device_attribute *attr, const char *buf, size_t len) 2834 { 2835 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2836 unsigned long new; 2837 2838 if (kstrtoul(buf, 2, &new)) 2839 return -EINVAL; 2840 2841 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) 2842 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED; 2843 2844 return len; 2845 } 2846 2847 static ssize_t 2848 netxen_show_diag_mode(struct device *dev, 2849 struct device_attribute *attr, char *buf) 2850 { 2851 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2852 2853 return sprintf(buf, "%d\n", 2854 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)); 2855 } 2856 2857 static struct device_attribute dev_attr_diag_mode = { 2858 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)}, 2859 .show = netxen_show_diag_mode, 2860 .store = netxen_store_diag_mode, 2861 }; 2862 2863 static int 2864 netxen_sysfs_validate_crb(struct netxen_adapter *adapter, 2865 loff_t offset, size_t size) 2866 { 2867 size_t crb_size = 4; 2868 2869 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) 2870 return -EIO; 2871 2872 if (offset < NETXEN_PCI_CRBSPACE) { 2873 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 2874 return -EINVAL; 2875 2876 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, 2877 NETXEN_PCI_CAMQM_2M_END)) 2878 crb_size = 8; 2879 else 2880 return -EINVAL; 2881 } 2882 2883 if ((size != crb_size) || (offset & (crb_size-1))) 2884 return -EINVAL; 2885 2886 return 0; 2887 } 2888 2889 static ssize_t 2890 netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj, 2891 struct bin_attribute *attr, 2892 char *buf, loff_t offset, size_t size) 2893 { 2894 struct device *dev = container_of(kobj, struct device, kobj); 2895 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2896 u32 data; 2897 u64 qmdata; 2898 int ret; 2899 2900 ret = netxen_sysfs_validate_crb(adapter, offset, size); 2901 if (ret != 0) 2902 return ret; 2903 2904 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && 2905 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, 2906 NETXEN_PCI_CAMQM_2M_END)) { 2907 netxen_pci_camqm_read_2M(adapter, offset, &qmdata); 2908 memcpy(buf, &qmdata, size); 2909 } else { 2910 data = NXRD32(adapter, offset); 2911 memcpy(buf, &data, size); 2912 } 2913 2914 return size; 2915 } 2916 2917 static ssize_t 2918 netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj, 2919 struct bin_attribute *attr, 2920 char *buf, loff_t offset, size_t size) 2921 { 2922 struct device *dev = container_of(kobj, struct device, kobj); 2923 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2924 u32 data; 2925 u64 qmdata; 2926 int ret; 2927 2928 ret = netxen_sysfs_validate_crb(adapter, offset, size); 2929 if (ret != 0) 2930 return ret; 2931 2932 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && 2933 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, 2934 NETXEN_PCI_CAMQM_2M_END)) { 2935 memcpy(&qmdata, buf, size); 2936 netxen_pci_camqm_write_2M(adapter, offset, qmdata); 2937 } else { 2938 memcpy(&data, buf, size); 2939 NXWR32(adapter, offset, data); 2940 } 2941 2942 return size; 2943 } 2944 2945 static int 2946 netxen_sysfs_validate_mem(struct netxen_adapter *adapter, 2947 loff_t offset, size_t size) 2948 { 2949 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) 2950 return -EIO; 2951 2952 if ((size != 8) || (offset & 0x7)) 2953 return -EIO; 2954 2955 return 0; 2956 } 2957 2958 static ssize_t 2959 netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj, 2960 struct bin_attribute *attr, 2961 char *buf, loff_t offset, size_t size) 2962 { 2963 struct device *dev = container_of(kobj, struct device, kobj); 2964 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2965 u64 data; 2966 int ret; 2967 2968 ret = netxen_sysfs_validate_mem(adapter, offset, size); 2969 if (ret != 0) 2970 return ret; 2971 2972 if (adapter->pci_mem_read(adapter, offset, &data)) 2973 return -EIO; 2974 2975 memcpy(buf, &data, size); 2976 2977 return size; 2978 } 2979 2980 static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj, 2981 struct bin_attribute *attr, char *buf, 2982 loff_t offset, size_t size) 2983 { 2984 struct device *dev = container_of(kobj, struct device, kobj); 2985 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2986 u64 data; 2987 int ret; 2988 2989 ret = netxen_sysfs_validate_mem(adapter, offset, size); 2990 if (ret != 0) 2991 return ret; 2992 2993 memcpy(&data, buf, size); 2994 2995 if (adapter->pci_mem_write(adapter, offset, data)) 2996 return -EIO; 2997 2998 return size; 2999 } 3000 3001 3002 static struct bin_attribute bin_attr_crb = { 3003 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)}, 3004 .size = 0, 3005 .read = netxen_sysfs_read_crb, 3006 .write = netxen_sysfs_write_crb, 3007 }; 3008 3009 static struct bin_attribute bin_attr_mem = { 3010 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)}, 3011 .size = 0, 3012 .read = netxen_sysfs_read_mem, 3013 .write = netxen_sysfs_write_mem, 3014 }; 3015 3016 static ssize_t 3017 netxen_sysfs_read_dimm(struct file *filp, struct kobject *kobj, 3018 struct bin_attribute *attr, 3019 char *buf, loff_t offset, size_t size) 3020 { 3021 struct device *dev = container_of(kobj, struct device, kobj); 3022 struct netxen_adapter *adapter = dev_get_drvdata(dev); 3023 struct net_device *netdev = adapter->netdev; 3024 struct netxen_dimm_cfg dimm; 3025 u8 dw, rows, cols, banks, ranks; 3026 u32 val; 3027 3028 if (size != sizeof(struct netxen_dimm_cfg)) { 3029 netdev_err(netdev, "Invalid size\n"); 3030 return -1; 3031 } 3032 3033 memset(&dimm, 0, sizeof(struct netxen_dimm_cfg)); 3034 val = NXRD32(adapter, NETXEN_DIMM_CAPABILITY); 3035 3036 /* Checks if DIMM info is valid. */ 3037 if (val & NETXEN_DIMM_VALID_FLAG) { 3038 netdev_err(netdev, "Invalid DIMM flag\n"); 3039 dimm.presence = 0xff; 3040 goto out; 3041 } 3042 3043 rows = NETXEN_DIMM_NUMROWS(val); 3044 cols = NETXEN_DIMM_NUMCOLS(val); 3045 ranks = NETXEN_DIMM_NUMRANKS(val); 3046 banks = NETXEN_DIMM_NUMBANKS(val); 3047 dw = NETXEN_DIMM_DATAWIDTH(val); 3048 3049 dimm.presence = (val & NETXEN_DIMM_PRESENT); 3050 3051 /* Checks if DIMM info is present. */ 3052 if (!dimm.presence) { 3053 netdev_err(netdev, "DIMM not present\n"); 3054 goto out; 3055 } 3056 3057 dimm.dimm_type = NETXEN_DIMM_TYPE(val); 3058 3059 switch (dimm.dimm_type) { 3060 case NETXEN_DIMM_TYPE_RDIMM: 3061 case NETXEN_DIMM_TYPE_UDIMM: 3062 case NETXEN_DIMM_TYPE_SO_DIMM: 3063 case NETXEN_DIMM_TYPE_Micro_DIMM: 3064 case NETXEN_DIMM_TYPE_Mini_RDIMM: 3065 case NETXEN_DIMM_TYPE_Mini_UDIMM: 3066 break; 3067 default: 3068 netdev_err(netdev, "Invalid DIMM type %x\n", dimm.dimm_type); 3069 goto out; 3070 } 3071 3072 if (val & NETXEN_DIMM_MEMTYPE_DDR2_SDRAM) 3073 dimm.mem_type = NETXEN_DIMM_MEM_DDR2_SDRAM; 3074 else 3075 dimm.mem_type = NETXEN_DIMM_MEMTYPE(val); 3076 3077 if (val & NETXEN_DIMM_SIZE) { 3078 dimm.size = NETXEN_DIMM_STD_MEM_SIZE; 3079 goto out; 3080 } 3081 3082 if (!rows) { 3083 netdev_err(netdev, "Invalid no of rows %x\n", rows); 3084 goto out; 3085 } 3086 3087 if (!cols) { 3088 netdev_err(netdev, "Invalid no of columns %x\n", cols); 3089 goto out; 3090 } 3091 3092 if (!banks) { 3093 netdev_err(netdev, "Invalid no of banks %x\n", banks); 3094 goto out; 3095 } 3096 3097 ranks += 1; 3098 3099 switch (dw) { 3100 case 0x0: 3101 dw = 32; 3102 break; 3103 case 0x1: 3104 dw = 33; 3105 break; 3106 case 0x2: 3107 dw = 36; 3108 break; 3109 case 0x3: 3110 dw = 64; 3111 break; 3112 case 0x4: 3113 dw = 72; 3114 break; 3115 case 0x5: 3116 dw = 80; 3117 break; 3118 case 0x6: 3119 dw = 128; 3120 break; 3121 case 0x7: 3122 dw = 144; 3123 break; 3124 default: 3125 netdev_err(netdev, "Invalid data-width %x\n", dw); 3126 goto out; 3127 } 3128 3129 dimm.size = ((1 << rows) * (1 << cols) * dw * banks * ranks) / 8; 3130 /* Size returned in MB. */ 3131 dimm.size = (dimm.size) / 0x100000; 3132 out: 3133 memcpy(buf, &dimm, sizeof(struct netxen_dimm_cfg)); 3134 return sizeof(struct netxen_dimm_cfg); 3135 3136 } 3137 3138 static struct bin_attribute bin_attr_dimm = { 3139 .attr = { .name = "dimm", .mode = (S_IRUGO | S_IWUSR) }, 3140 .size = 0, 3141 .read = netxen_sysfs_read_dimm, 3142 }; 3143 3144 3145 static void 3146 netxen_create_sysfs_entries(struct netxen_adapter *adapter) 3147 { 3148 struct device *dev = &adapter->pdev->dev; 3149 3150 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) { 3151 /* bridged_mode control */ 3152 if (device_create_file(dev, &dev_attr_bridged_mode)) { 3153 dev_warn(dev, 3154 "failed to create bridged_mode sysfs entry\n"); 3155 } 3156 } 3157 } 3158 3159 static void 3160 netxen_remove_sysfs_entries(struct netxen_adapter *adapter) 3161 { 3162 struct device *dev = &adapter->pdev->dev; 3163 3164 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) 3165 device_remove_file(dev, &dev_attr_bridged_mode); 3166 } 3167 3168 static void 3169 netxen_create_diag_entries(struct netxen_adapter *adapter) 3170 { 3171 struct pci_dev *pdev = adapter->pdev; 3172 struct device *dev; 3173 3174 dev = &pdev->dev; 3175 if (device_create_file(dev, &dev_attr_diag_mode)) 3176 dev_info(dev, "failed to create diag_mode sysfs entry\n"); 3177 if (device_create_bin_file(dev, &bin_attr_crb)) 3178 dev_info(dev, "failed to create crb sysfs entry\n"); 3179 if (device_create_bin_file(dev, &bin_attr_mem)) 3180 dev_info(dev, "failed to create mem sysfs entry\n"); 3181 if (device_create_bin_file(dev, &bin_attr_dimm)) 3182 dev_info(dev, "failed to create dimm sysfs entry\n"); 3183 } 3184 3185 3186 static void 3187 netxen_remove_diag_entries(struct netxen_adapter *adapter) 3188 { 3189 struct pci_dev *pdev = adapter->pdev; 3190 struct device *dev = &pdev->dev; 3191 3192 device_remove_file(dev, &dev_attr_diag_mode); 3193 device_remove_bin_file(dev, &bin_attr_crb); 3194 device_remove_bin_file(dev, &bin_attr_mem); 3195 device_remove_bin_file(dev, &bin_attr_dimm); 3196 } 3197 3198 #ifdef CONFIG_INET 3199 3200 #define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops) 3201 3202 static int 3203 netxen_destip_supported(struct netxen_adapter *adapter) 3204 { 3205 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 3206 return 0; 3207 3208 if (adapter->ahw.cut_through) 3209 return 0; 3210 3211 return 1; 3212 } 3213 3214 static void 3215 netxen_free_ip_list(struct netxen_adapter *adapter, bool master) 3216 { 3217 struct nx_ip_list *cur, *tmp_cur; 3218 3219 list_for_each_entry_safe(cur, tmp_cur, &adapter->ip_list, list) { 3220 if (master) { 3221 if (cur->master) { 3222 netxen_config_ipaddr(adapter, cur->ip_addr, 3223 NX_IP_DOWN); 3224 list_del(&cur->list); 3225 kfree(cur); 3226 } 3227 } else { 3228 netxen_config_ipaddr(adapter, cur->ip_addr, NX_IP_DOWN); 3229 list_del(&cur->list); 3230 kfree(cur); 3231 } 3232 } 3233 } 3234 3235 static bool 3236 netxen_list_config_ip(struct netxen_adapter *adapter, 3237 struct in_ifaddr *ifa, unsigned long event) 3238 { 3239 struct net_device *dev; 3240 struct nx_ip_list *cur, *tmp_cur; 3241 struct list_head *head; 3242 bool ret = false; 3243 3244 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL; 3245 3246 if (dev == NULL) 3247 goto out; 3248 3249 switch (event) { 3250 case NX_IP_UP: 3251 list_for_each(head, &adapter->ip_list) { 3252 cur = list_entry(head, struct nx_ip_list, list); 3253 3254 if (cur->ip_addr == ifa->ifa_address) 3255 goto out; 3256 } 3257 3258 cur = kzalloc(sizeof(struct nx_ip_list), GFP_ATOMIC); 3259 if (cur == NULL) 3260 goto out; 3261 if (dev->priv_flags & IFF_802_1Q_VLAN) 3262 dev = vlan_dev_real_dev(dev); 3263 cur->master = !!netif_is_bond_master(dev); 3264 cur->ip_addr = ifa->ifa_address; 3265 list_add_tail(&cur->list, &adapter->ip_list); 3266 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP); 3267 ret = true; 3268 break; 3269 case NX_IP_DOWN: 3270 list_for_each_entry_safe(cur, tmp_cur, 3271 &adapter->ip_list, list) { 3272 if (cur->ip_addr == ifa->ifa_address) { 3273 list_del(&cur->list); 3274 kfree(cur); 3275 netxen_config_ipaddr(adapter, ifa->ifa_address, 3276 NX_IP_DOWN); 3277 ret = true; 3278 break; 3279 } 3280 } 3281 } 3282 out: 3283 return ret; 3284 } 3285 3286 static void 3287 netxen_config_indev_addr(struct netxen_adapter *adapter, 3288 struct net_device *dev, unsigned long event) 3289 { 3290 struct in_device *indev; 3291 3292 if (!netxen_destip_supported(adapter)) 3293 return; 3294 3295 indev = in_dev_get(dev); 3296 if (!indev) 3297 return; 3298 3299 for_ifa(indev) { 3300 switch (event) { 3301 case NETDEV_UP: 3302 netxen_list_config_ip(adapter, ifa, NX_IP_UP); 3303 break; 3304 case NETDEV_DOWN: 3305 netxen_list_config_ip(adapter, ifa, NX_IP_DOWN); 3306 break; 3307 default: 3308 break; 3309 } 3310 } endfor_ifa(indev); 3311 3312 in_dev_put(indev); 3313 } 3314 3315 static void 3316 netxen_restore_indev_addr(struct net_device *netdev, unsigned long event) 3317 3318 { 3319 struct netxen_adapter *adapter = netdev_priv(netdev); 3320 struct nx_ip_list *pos, *tmp_pos; 3321 unsigned long ip_event; 3322 3323 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN; 3324 netxen_config_indev_addr(adapter, netdev, event); 3325 3326 list_for_each_entry_safe(pos, tmp_pos, &adapter->ip_list, list) { 3327 netxen_config_ipaddr(adapter, pos->ip_addr, ip_event); 3328 } 3329 } 3330 3331 static inline bool 3332 netxen_config_checkdev(struct net_device *dev) 3333 { 3334 struct netxen_adapter *adapter; 3335 3336 if (!is_netxen_netdev(dev)) 3337 return false; 3338 adapter = netdev_priv(dev); 3339 if (!adapter) 3340 return false; 3341 if (!netxen_destip_supported(adapter)) 3342 return false; 3343 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 3344 return false; 3345 3346 return true; 3347 } 3348 3349 /** 3350 * netxen_config_master - configure addresses based on master 3351 * @dev: netxen device 3352 * @event: netdev event 3353 */ 3354 static void netxen_config_master(struct net_device *dev, unsigned long event) 3355 { 3356 struct net_device *master, *slave; 3357 struct netxen_adapter *adapter = netdev_priv(dev); 3358 3359 rcu_read_lock(); 3360 master = netdev_master_upper_dev_get_rcu(dev); 3361 /* 3362 * This is the case where the netxen nic is being 3363 * enslaved and is dev_open()ed in bond_enslave() 3364 * Now we should program the bond's (and its vlans') 3365 * addresses in the netxen NIC. 3366 */ 3367 if (master && netif_is_bond_master(master) && 3368 !netif_is_bond_slave(dev)) { 3369 netxen_config_indev_addr(adapter, master, event); 3370 for_each_netdev_rcu(&init_net, slave) 3371 if (slave->priv_flags & IFF_802_1Q_VLAN && 3372 vlan_dev_real_dev(slave) == master) 3373 netxen_config_indev_addr(adapter, slave, event); 3374 } 3375 rcu_read_unlock(); 3376 /* 3377 * This is the case where the netxen nic is being 3378 * released and is dev_close()ed in bond_release() 3379 * just before IFF_BONDING is stripped. 3380 */ 3381 if (!master && dev->priv_flags & IFF_BONDING) 3382 netxen_free_ip_list(adapter, true); 3383 } 3384 3385 static int netxen_netdev_event(struct notifier_block *this, 3386 unsigned long event, void *ptr) 3387 { 3388 struct netxen_adapter *adapter; 3389 struct net_device *dev = netdev_notifier_info_to_dev(ptr); 3390 struct net_device *orig_dev = dev; 3391 struct net_device *slave; 3392 3393 recheck: 3394 if (dev == NULL) 3395 goto done; 3396 3397 if (dev->priv_flags & IFF_802_1Q_VLAN) { 3398 dev = vlan_dev_real_dev(dev); 3399 goto recheck; 3400 } 3401 if (event == NETDEV_UP || event == NETDEV_DOWN) { 3402 /* If this is a bonding device, look for netxen-based slaves*/ 3403 if (netif_is_bond_master(dev)) { 3404 rcu_read_lock(); 3405 for_each_netdev_in_bond_rcu(dev, slave) { 3406 if (!netxen_config_checkdev(slave)) 3407 continue; 3408 adapter = netdev_priv(slave); 3409 netxen_config_indev_addr(adapter, 3410 orig_dev, event); 3411 } 3412 rcu_read_unlock(); 3413 } else { 3414 if (!netxen_config_checkdev(dev)) 3415 goto done; 3416 adapter = netdev_priv(dev); 3417 /* Act only if the actual netxen is the target */ 3418 if (orig_dev == dev) 3419 netxen_config_master(dev, event); 3420 netxen_config_indev_addr(adapter, orig_dev, event); 3421 } 3422 } 3423 done: 3424 return NOTIFY_DONE; 3425 } 3426 3427 static int 3428 netxen_inetaddr_event(struct notifier_block *this, 3429 unsigned long event, void *ptr) 3430 { 3431 struct netxen_adapter *adapter; 3432 struct net_device *dev, *slave; 3433 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr; 3434 unsigned long ip_event; 3435 3436 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL; 3437 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN; 3438 recheck: 3439 if (dev == NULL) 3440 goto done; 3441 3442 if (dev->priv_flags & IFF_802_1Q_VLAN) { 3443 dev = vlan_dev_real_dev(dev); 3444 goto recheck; 3445 } 3446 if (event == NETDEV_UP || event == NETDEV_DOWN) { 3447 /* If this is a bonding device, look for netxen-based slaves*/ 3448 if (netif_is_bond_master(dev)) { 3449 rcu_read_lock(); 3450 for_each_netdev_in_bond_rcu(dev, slave) { 3451 if (!netxen_config_checkdev(slave)) 3452 continue; 3453 adapter = netdev_priv(slave); 3454 netxen_list_config_ip(adapter, ifa, ip_event); 3455 } 3456 rcu_read_unlock(); 3457 } else { 3458 if (!netxen_config_checkdev(dev)) 3459 goto done; 3460 adapter = netdev_priv(dev); 3461 netxen_list_config_ip(adapter, ifa, ip_event); 3462 } 3463 } 3464 done: 3465 return NOTIFY_DONE; 3466 } 3467 3468 static struct notifier_block netxen_netdev_cb = { 3469 .notifier_call = netxen_netdev_event, 3470 }; 3471 3472 static struct notifier_block netxen_inetaddr_cb = { 3473 .notifier_call = netxen_inetaddr_event, 3474 }; 3475 #else 3476 static void 3477 netxen_restore_indev_addr(struct net_device *dev, unsigned long event) 3478 { } 3479 static void 3480 netxen_free_ip_list(struct netxen_adapter *adapter, bool master) 3481 { } 3482 #endif 3483 3484 static const struct pci_error_handlers netxen_err_handler = { 3485 .error_detected = netxen_io_error_detected, 3486 .slot_reset = netxen_io_slot_reset, 3487 .resume = netxen_io_resume, 3488 }; 3489 3490 static struct pci_driver netxen_driver = { 3491 .name = netxen_nic_driver_name, 3492 .id_table = netxen_pci_tbl, 3493 .probe = netxen_nic_probe, 3494 .remove = netxen_nic_remove, 3495 #ifdef CONFIG_PM 3496 .suspend = netxen_nic_suspend, 3497 .resume = netxen_nic_resume, 3498 #endif 3499 .shutdown = netxen_nic_shutdown, 3500 .err_handler = &netxen_err_handler 3501 }; 3502 3503 static int __init netxen_init_module(void) 3504 { 3505 printk(KERN_INFO "%s\n", netxen_nic_driver_string); 3506 3507 #ifdef CONFIG_INET 3508 register_netdevice_notifier(&netxen_netdev_cb); 3509 register_inetaddr_notifier(&netxen_inetaddr_cb); 3510 #endif 3511 return pci_register_driver(&netxen_driver); 3512 } 3513 3514 module_init(netxen_init_module); 3515 3516 static void __exit netxen_exit_module(void) 3517 { 3518 pci_unregister_driver(&netxen_driver); 3519 3520 #ifdef CONFIG_INET 3521 unregister_inetaddr_notifier(&netxen_inetaddr_cb); 3522 unregister_netdevice_notifier(&netxen_netdev_cb); 3523 #endif 3524 } 3525 3526 module_exit(netxen_exit_module); 3527