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 const struct pci_device_id 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 kfree(recv_ctx->sds_rings); 180 recv_ctx->sds_rings = NULL; 181 } 182 183 static int 184 netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev) 185 { 186 int ring; 187 struct nx_host_sds_ring *sds_ring; 188 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 189 190 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings)) 191 return -ENOMEM; 192 193 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 194 sds_ring = &recv_ctx->sds_rings[ring]; 195 netif_napi_add(netdev, &sds_ring->napi, 196 netxen_nic_poll, NAPI_POLL_WEIGHT); 197 } 198 199 return 0; 200 } 201 202 static void 203 netxen_napi_del(struct netxen_adapter *adapter) 204 { 205 int ring; 206 struct nx_host_sds_ring *sds_ring; 207 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 208 209 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 210 sds_ring = &recv_ctx->sds_rings[ring]; 211 netif_napi_del(&sds_ring->napi); 212 } 213 214 netxen_free_sds_rings(&adapter->recv_ctx); 215 } 216 217 static void 218 netxen_napi_enable(struct netxen_adapter *adapter) 219 { 220 int ring; 221 struct nx_host_sds_ring *sds_ring; 222 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 223 224 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 225 sds_ring = &recv_ctx->sds_rings[ring]; 226 napi_enable(&sds_ring->napi); 227 netxen_nic_enable_int(sds_ring); 228 } 229 } 230 231 static void 232 netxen_napi_disable(struct netxen_adapter *adapter) 233 { 234 int ring; 235 struct nx_host_sds_ring *sds_ring; 236 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 237 238 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 239 sds_ring = &recv_ctx->sds_rings[ring]; 240 netxen_nic_disable_int(sds_ring); 241 napi_synchronize(&sds_ring->napi); 242 napi_disable(&sds_ring->napi); 243 } 244 } 245 246 static int nx_set_dma_mask(struct netxen_adapter *adapter) 247 { 248 struct pci_dev *pdev = adapter->pdev; 249 uint64_t mask, cmask; 250 251 adapter->pci_using_dac = 0; 252 253 mask = DMA_BIT_MASK(32); 254 cmask = DMA_BIT_MASK(32); 255 256 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 257 #ifndef CONFIG_IA64 258 mask = DMA_BIT_MASK(35); 259 #endif 260 } else { 261 mask = DMA_BIT_MASK(39); 262 cmask = mask; 263 } 264 265 if (pci_set_dma_mask(pdev, mask) == 0 && 266 pci_set_consistent_dma_mask(pdev, cmask) == 0) { 267 adapter->pci_using_dac = 1; 268 return 0; 269 } 270 271 return -EIO; 272 } 273 274 /* Update addressable range if firmware supports it */ 275 static int 276 nx_update_dma_mask(struct netxen_adapter *adapter) 277 { 278 int change, shift, err; 279 uint64_t mask, old_mask, old_cmask; 280 struct pci_dev *pdev = adapter->pdev; 281 282 change = 0; 283 284 shift = NXRD32(adapter, CRB_DMA_SHIFT); 285 if (shift > 32) 286 return 0; 287 288 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9)) 289 change = 1; 290 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4)) 291 change = 1; 292 293 if (change) { 294 old_mask = pdev->dma_mask; 295 old_cmask = pdev->dev.coherent_dma_mask; 296 297 mask = DMA_BIT_MASK(32+shift); 298 299 err = pci_set_dma_mask(pdev, mask); 300 if (err) 301 goto err_out; 302 303 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 304 305 err = pci_set_consistent_dma_mask(pdev, mask); 306 if (err) 307 goto err_out; 308 } 309 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift); 310 } 311 312 return 0; 313 314 err_out: 315 pci_set_dma_mask(pdev, old_mask); 316 pci_set_consistent_dma_mask(pdev, old_cmask); 317 return err; 318 } 319 320 static int 321 netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot) 322 { 323 u32 val, timeout; 324 325 if (first_boot == 0x55555555) { 326 /* This is the first boot after power up */ 327 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC); 328 329 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id)) 330 return 0; 331 332 /* PCI bus master workaround */ 333 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4)); 334 if (!(first_boot & 0x4)) { 335 first_boot |= 0x4; 336 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot); 337 NXRD32(adapter, NETXEN_PCIE_REG(0x4)); 338 } 339 340 /* This is the first boot after power up */ 341 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET); 342 if (first_boot != 0x80000f) { 343 /* clear the register for future unloads/loads */ 344 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0); 345 return -EIO; 346 } 347 348 /* Start P2 boot loader */ 349 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE); 350 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1); 351 timeout = 0; 352 do { 353 msleep(1); 354 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc)); 355 356 if (++timeout > 5000) 357 return -EIO; 358 359 } while (val == NETXEN_BDINFO_MAGIC); 360 } 361 return 0; 362 } 363 364 static void netxen_set_port_mode(struct netxen_adapter *adapter) 365 { 366 u32 val, data; 367 368 val = adapter->ahw.board_type; 369 if ((val == NETXEN_BRDTYPE_P3_HMEZ) || 370 (val == NETXEN_BRDTYPE_P3_XG_LOM)) { 371 if (port_mode == NETXEN_PORT_MODE_802_3_AP) { 372 data = NETXEN_PORT_MODE_802_3_AP; 373 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); 374 } else if (port_mode == NETXEN_PORT_MODE_XG) { 375 data = NETXEN_PORT_MODE_XG; 376 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); 377 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) { 378 data = NETXEN_PORT_MODE_AUTO_NEG_1G; 379 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); 380 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) { 381 data = NETXEN_PORT_MODE_AUTO_NEG_XG; 382 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); 383 } else { 384 data = NETXEN_PORT_MODE_AUTO_NEG; 385 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); 386 } 387 388 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) && 389 (wol_port_mode != NETXEN_PORT_MODE_XG) && 390 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) && 391 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) { 392 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG; 393 } 394 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode); 395 } 396 } 397 398 #define PCI_CAP_ID_GEN 0x10 399 400 static void netxen_pcie_strap_init(struct netxen_adapter *adapter) 401 { 402 u32 pdevfuncsave; 403 u32 c8c9value = 0; 404 u32 chicken = 0; 405 u32 control = 0; 406 int i, pos; 407 struct pci_dev *pdev; 408 409 pdev = adapter->pdev; 410 411 chicken = NXRD32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3)); 412 /* clear chicken3.25:24 */ 413 chicken &= 0xFCFFFFFF; 414 /* 415 * if gen1 and B0, set F1020 - if gen 2, do nothing 416 * if gen2 set to F1000 417 */ 418 pos = pci_find_capability(pdev, PCI_CAP_ID_GEN); 419 if (pos == 0xC0) { 420 pci_read_config_dword(pdev, pos + 0x10, &control); 421 if ((control & 0x000F0000) != 0x00020000) { 422 /* set chicken3.24 if gen1 */ 423 chicken |= 0x01000000; 424 } 425 dev_info(&adapter->pdev->dev, "Gen2 strapping detected\n"); 426 c8c9value = 0xF1000; 427 } else { 428 /* set chicken3.24 if gen1 */ 429 chicken |= 0x01000000; 430 dev_info(&adapter->pdev->dev, "Gen1 strapping detected\n"); 431 if (adapter->ahw.revision_id == NX_P3_B0) 432 c8c9value = 0xF1020; 433 else 434 c8c9value = 0; 435 } 436 437 NXWR32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3), chicken); 438 439 if (!c8c9value) 440 return; 441 442 pdevfuncsave = pdev->devfn; 443 if (pdevfuncsave & 0x07) 444 return; 445 446 for (i = 0; i < 8; i++) { 447 pci_read_config_dword(pdev, pos + 8, &control); 448 pci_read_config_dword(pdev, pos + 8, &control); 449 pci_write_config_dword(pdev, pos + 8, c8c9value); 450 pdev->devfn++; 451 } 452 pdev->devfn = pdevfuncsave; 453 } 454 455 static void netxen_set_msix_bit(struct pci_dev *pdev, int enable) 456 { 457 u32 control; 458 459 if (pdev->msix_cap) { 460 pci_read_config_dword(pdev, pdev->msix_cap, &control); 461 if (enable) 462 control |= PCI_MSIX_FLAGS_ENABLE; 463 else 464 control = 0; 465 pci_write_config_dword(pdev, pdev->msix_cap, control); 466 } 467 } 468 469 static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count) 470 { 471 int i; 472 473 for (i = 0; i < count; i++) 474 adapter->msix_entries[i].entry = i; 475 } 476 477 static int 478 netxen_read_mac_addr(struct netxen_adapter *adapter) 479 { 480 int i; 481 unsigned char *p; 482 u64 mac_addr; 483 struct net_device *netdev = adapter->netdev; 484 struct pci_dev *pdev = adapter->pdev; 485 486 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 487 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0) 488 return -EIO; 489 } else { 490 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0) 491 return -EIO; 492 } 493 494 p = (unsigned char *)&mac_addr; 495 for (i = 0; i < 6; i++) 496 netdev->dev_addr[i] = *(p + 5 - i); 497 498 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len); 499 500 /* set station address */ 501 502 if (!is_valid_ether_addr(netdev->dev_addr)) 503 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr); 504 505 return 0; 506 } 507 508 static int netxen_nic_set_mac(struct net_device *netdev, void *p) 509 { 510 struct netxen_adapter *adapter = netdev_priv(netdev); 511 struct sockaddr *addr = p; 512 513 if (!is_valid_ether_addr(addr->sa_data)) 514 return -EADDRNOTAVAIL; 515 516 if (netif_running(netdev)) { 517 netif_device_detach(netdev); 518 netxen_napi_disable(adapter); 519 } 520 521 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len); 522 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); 523 adapter->macaddr_set(adapter, addr->sa_data); 524 525 if (netif_running(netdev)) { 526 netif_device_attach(netdev); 527 netxen_napi_enable(adapter); 528 } 529 return 0; 530 } 531 532 static void netxen_set_multicast_list(struct net_device *dev) 533 { 534 struct netxen_adapter *adapter = netdev_priv(dev); 535 536 adapter->set_multi(dev); 537 } 538 539 static netdev_features_t netxen_fix_features(struct net_device *dev, 540 netdev_features_t features) 541 { 542 if (!(features & NETIF_F_RXCSUM)) { 543 netdev_info(dev, "disabling LRO as RXCSUM is off\n"); 544 545 features &= ~NETIF_F_LRO; 546 } 547 548 return features; 549 } 550 551 static int netxen_set_features(struct net_device *dev, 552 netdev_features_t features) 553 { 554 struct netxen_adapter *adapter = netdev_priv(dev); 555 int hw_lro; 556 557 if (!((dev->features ^ features) & NETIF_F_LRO)) 558 return 0; 559 560 hw_lro = (features & NETIF_F_LRO) ? NETXEN_NIC_LRO_ENABLED 561 : NETXEN_NIC_LRO_DISABLED; 562 563 if (netxen_config_hw_lro(adapter, hw_lro)) 564 return -EIO; 565 566 if (!(features & NETIF_F_LRO) && netxen_send_lro_cleanup(adapter)) 567 return -EIO; 568 569 return 0; 570 } 571 572 static const struct net_device_ops netxen_netdev_ops = { 573 .ndo_open = netxen_nic_open, 574 .ndo_stop = netxen_nic_close, 575 .ndo_start_xmit = netxen_nic_xmit_frame, 576 .ndo_get_stats64 = netxen_nic_get_stats, 577 .ndo_validate_addr = eth_validate_addr, 578 .ndo_set_rx_mode = netxen_set_multicast_list, 579 .ndo_set_mac_address = netxen_nic_set_mac, 580 .ndo_change_mtu = netxen_nic_change_mtu, 581 .ndo_tx_timeout = netxen_tx_timeout, 582 .ndo_fix_features = netxen_fix_features, 583 .ndo_set_features = netxen_set_features, 584 #ifdef CONFIG_NET_POLL_CONTROLLER 585 .ndo_poll_controller = netxen_nic_poll_controller, 586 #endif 587 }; 588 589 static inline bool netxen_function_zero(struct pci_dev *pdev) 590 { 591 return (PCI_FUNC(pdev->devfn) == 0) ? true : false; 592 } 593 594 static inline void netxen_set_interrupt_mode(struct netxen_adapter *adapter, 595 u32 mode) 596 { 597 NXWR32(adapter, NETXEN_INTR_MODE_REG, mode); 598 } 599 600 static inline u32 netxen_get_interrupt_mode(struct netxen_adapter *adapter) 601 { 602 return NXRD32(adapter, NETXEN_INTR_MODE_REG); 603 } 604 605 static void 606 netxen_initialize_interrupt_registers(struct netxen_adapter *adapter) 607 { 608 struct netxen_legacy_intr_set *legacy_intrp; 609 u32 tgt_status_reg, int_state_reg; 610 611 if (adapter->ahw.revision_id >= NX_P3_B0) 612 legacy_intrp = &legacy_intr[adapter->ahw.pci_func]; 613 else 614 legacy_intrp = &legacy_intr[0]; 615 616 tgt_status_reg = legacy_intrp->tgt_status_reg; 617 int_state_reg = ISR_INT_STATE_REG; 618 619 adapter->int_vec_bit = legacy_intrp->int_vec_bit; 620 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, tgt_status_reg); 621 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter, 622 legacy_intrp->tgt_mask_reg); 623 adapter->pci_int_reg = netxen_get_ioaddr(adapter, 624 legacy_intrp->pci_int_reg); 625 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR); 626 627 if (adapter->ahw.revision_id >= NX_P3_B1) 628 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter, 629 int_state_reg); 630 else 631 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter, 632 CRB_INT_VECTOR); 633 } 634 635 static int netxen_setup_msi_interrupts(struct netxen_adapter *adapter, 636 int num_msix) 637 { 638 struct pci_dev *pdev = adapter->pdev; 639 u32 value; 640 int err; 641 642 if (adapter->msix_supported) { 643 netxen_init_msix_entries(adapter, num_msix); 644 err = pci_enable_msix_range(pdev, adapter->msix_entries, 645 num_msix, num_msix); 646 if (err > 0) { 647 adapter->flags |= NETXEN_NIC_MSIX_ENABLED; 648 netxen_set_msix_bit(pdev, 1); 649 650 if (adapter->rss_supported) 651 adapter->max_sds_rings = num_msix; 652 653 dev_info(&pdev->dev, "using msi-x interrupts\n"); 654 return 0; 655 } 656 /* fall through for msi */ 657 } 658 659 if (use_msi && !pci_enable_msi(pdev)) { 660 value = msi_tgt_status[adapter->ahw.pci_func]; 661 adapter->flags |= NETXEN_NIC_MSI_ENABLED; 662 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, value); 663 adapter->msix_entries[0].vector = pdev->irq; 664 dev_info(&pdev->dev, "using msi interrupts\n"); 665 return 0; 666 } 667 668 dev_err(&pdev->dev, "Failed to acquire MSI-X/MSI interrupt vector\n"); 669 return -EIO; 670 } 671 672 static int netxen_setup_intr(struct netxen_adapter *adapter) 673 { 674 struct pci_dev *pdev = adapter->pdev; 675 int num_msix; 676 677 if (adapter->rss_supported) 678 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ? 679 MSIX_ENTRIES_PER_ADAPTER : 2; 680 else 681 num_msix = 1; 682 683 adapter->max_sds_rings = 1; 684 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED); 685 686 netxen_initialize_interrupt_registers(adapter); 687 netxen_set_msix_bit(pdev, 0); 688 689 if (netxen_function_zero(pdev)) { 690 if (!netxen_setup_msi_interrupts(adapter, num_msix)) 691 netxen_set_interrupt_mode(adapter, NETXEN_MSI_MODE); 692 else 693 netxen_set_interrupt_mode(adapter, NETXEN_INTX_MODE); 694 } else { 695 if (netxen_get_interrupt_mode(adapter) == NETXEN_MSI_MODE && 696 netxen_setup_msi_interrupts(adapter, num_msix)) { 697 dev_err(&pdev->dev, "Co-existence of MSI-X/MSI and INTx interrupts is not supported\n"); 698 return -EIO; 699 } 700 } 701 702 if (!NETXEN_IS_MSI_FAMILY(adapter)) { 703 adapter->msix_entries[0].vector = pdev->irq; 704 dev_info(&pdev->dev, "using legacy interrupts\n"); 705 } 706 return 0; 707 } 708 709 static void 710 netxen_teardown_intr(struct netxen_adapter *adapter) 711 { 712 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) 713 pci_disable_msix(adapter->pdev); 714 if (adapter->flags & NETXEN_NIC_MSI_ENABLED) 715 pci_disable_msi(adapter->pdev); 716 } 717 718 static void 719 netxen_cleanup_pci_map(struct netxen_adapter *adapter) 720 { 721 if (adapter->ahw.db_base != NULL) 722 iounmap(adapter->ahw.db_base); 723 if (adapter->ahw.pci_base0 != NULL) 724 iounmap(adapter->ahw.pci_base0); 725 if (adapter->ahw.pci_base1 != NULL) 726 iounmap(adapter->ahw.pci_base1); 727 if (adapter->ahw.pci_base2 != NULL) 728 iounmap(adapter->ahw.pci_base2); 729 } 730 731 static int 732 netxen_setup_pci_map(struct netxen_adapter *adapter) 733 { 734 void __iomem *db_ptr = NULL; 735 736 resource_size_t mem_base, db_base; 737 unsigned long mem_len, db_len = 0; 738 739 struct pci_dev *pdev = adapter->pdev; 740 int pci_func = adapter->ahw.pci_func; 741 struct netxen_hardware_context *ahw = &adapter->ahw; 742 743 int err = 0; 744 745 /* 746 * Set the CRB window to invalid. If any register in window 0 is 747 * accessed it should set the window to 0 and then reset it to 1. 748 */ 749 adapter->ahw.crb_win = -1; 750 adapter->ahw.ocm_win = -1; 751 752 /* remap phys address */ 753 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ 754 mem_len = pci_resource_len(pdev, 0); 755 756 /* 128 Meg of memory */ 757 if (mem_len == NETXEN_PCI_128MB_SIZE) { 758 759 ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE); 760 ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START, 761 SECOND_PAGE_GROUP_SIZE); 762 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START, 763 THIRD_PAGE_GROUP_SIZE); 764 if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL || 765 ahw->pci_base2 == NULL) { 766 dev_err(&pdev->dev, "failed to map PCI bar 0\n"); 767 err = -EIO; 768 goto err_out; 769 } 770 771 ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE; 772 773 } else if (mem_len == NETXEN_PCI_32MB_SIZE) { 774 775 ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE); 776 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START - 777 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE); 778 if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) { 779 dev_err(&pdev->dev, "failed to map PCI bar 0\n"); 780 err = -EIO; 781 goto err_out; 782 } 783 784 } else if (mem_len == NETXEN_PCI_2MB_SIZE) { 785 786 ahw->pci_base0 = pci_ioremap_bar(pdev, 0); 787 if (ahw->pci_base0 == NULL) { 788 dev_err(&pdev->dev, "failed to map PCI bar 0\n"); 789 return -EIO; 790 } 791 ahw->pci_len0 = mem_len; 792 } else { 793 return -EIO; 794 } 795 796 netxen_setup_hwops(adapter); 797 798 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20)); 799 800 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) { 801 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter, 802 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func))); 803 804 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 805 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter, 806 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func))); 807 } 808 809 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 810 goto skip_doorbell; 811 812 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ 813 db_len = pci_resource_len(pdev, 4); 814 815 if (db_len == 0) { 816 printk(KERN_ERR "%s: doorbell is disabled\n", 817 netxen_nic_driver_name); 818 err = -EIO; 819 goto err_out; 820 } 821 822 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES); 823 if (!db_ptr) { 824 printk(KERN_ERR "%s: Failed to allocate doorbell map.", 825 netxen_nic_driver_name); 826 err = -EIO; 827 goto err_out; 828 } 829 830 skip_doorbell: 831 adapter->ahw.db_base = db_ptr; 832 adapter->ahw.db_len = db_len; 833 return 0; 834 835 err_out: 836 netxen_cleanup_pci_map(adapter); 837 return err; 838 } 839 840 static void 841 netxen_check_options(struct netxen_adapter *adapter) 842 { 843 u32 fw_major, fw_minor, fw_build, prev_fw_version; 844 char brd_name[NETXEN_MAX_SHORT_NAME]; 845 char serial_num[32]; 846 int i, offset, val, err; 847 __le32 *ptr32; 848 struct pci_dev *pdev = adapter->pdev; 849 850 adapter->driver_mismatch = 0; 851 852 ptr32 = (__le32 *)&serial_num; 853 offset = NX_FW_SERIAL_NUM_OFFSET; 854 for (i = 0; i < 8; i++) { 855 err = netxen_rom_fast_read(adapter, offset, &val); 856 if (err) { 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 netif_carrier_off(netdev); 1189 netif_tx_disable(netdev); 1190 1191 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION) 1192 netxen_linkevent_request(adapter, 0); 1193 1194 if (adapter->stop_port) 1195 adapter->stop_port(adapter); 1196 1197 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1198 netxen_p3_free_mac_list(adapter); 1199 1200 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE); 1201 1202 netxen_napi_disable(adapter); 1203 1204 netxen_release_tx_buffers(adapter); 1205 } 1206 1207 /* Usage: During suspend and firmware recovery module */ 1208 1209 static inline void 1210 netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) 1211 { 1212 rtnl_lock(); 1213 if (netif_running(netdev)) 1214 __netxen_nic_down(adapter, netdev); 1215 rtnl_unlock(); 1216 1217 } 1218 1219 static int 1220 netxen_nic_attach(struct netxen_adapter *adapter) 1221 { 1222 struct net_device *netdev = adapter->netdev; 1223 struct pci_dev *pdev = adapter->pdev; 1224 int err, ring; 1225 struct nx_host_rds_ring *rds_ring; 1226 struct nx_host_tx_ring *tx_ring; 1227 u32 capab2; 1228 1229 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) 1230 return 0; 1231 1232 err = netxen_init_firmware(adapter); 1233 if (err) 1234 return err; 1235 1236 adapter->flags &= ~NETXEN_FW_MSS_CAP; 1237 if (adapter->capabilities & NX_FW_CAPABILITY_MORE_CAPS) { 1238 capab2 = NXRD32(adapter, CRB_FW_CAPABILITIES_2); 1239 if (capab2 & NX_FW_CAPABILITY_2_LRO_MAX_TCP_SEG) 1240 adapter->flags |= NETXEN_FW_MSS_CAP; 1241 } 1242 1243 err = netxen_napi_add(adapter, netdev); 1244 if (err) 1245 return err; 1246 1247 err = netxen_alloc_sw_resources(adapter); 1248 if (err) { 1249 printk(KERN_ERR "%s: Error in setting sw resources\n", 1250 netdev->name); 1251 return err; 1252 } 1253 1254 err = netxen_alloc_hw_resources(adapter); 1255 if (err) { 1256 printk(KERN_ERR "%s: Error in setting hw resources\n", 1257 netdev->name); 1258 goto err_out_free_sw; 1259 } 1260 1261 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 1262 tx_ring = adapter->tx_ring; 1263 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter, 1264 crb_cmd_producer[adapter->portnum]); 1265 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter, 1266 crb_cmd_consumer[adapter->portnum]); 1267 1268 tx_ring->producer = 0; 1269 tx_ring->sw_consumer = 0; 1270 1271 netxen_nic_update_cmd_producer(adapter, tx_ring); 1272 netxen_nic_update_cmd_consumer(adapter, tx_ring); 1273 } 1274 1275 for (ring = 0; ring < adapter->max_rds_rings; ring++) { 1276 rds_ring = &adapter->recv_ctx.rds_rings[ring]; 1277 netxen_post_rx_buffers(adapter, ring, rds_ring); 1278 } 1279 1280 err = netxen_nic_request_irq(adapter); 1281 if (err) { 1282 dev_err(&pdev->dev, "%s: failed to setup interrupt\n", 1283 netdev->name); 1284 goto err_out_free_rxbuf; 1285 } 1286 1287 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1288 netxen_nic_init_coalesce_defaults(adapter); 1289 1290 netxen_create_sysfs_entries(adapter); 1291 1292 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC; 1293 return 0; 1294 1295 err_out_free_rxbuf: 1296 netxen_release_rx_buffers(adapter); 1297 netxen_free_hw_resources(adapter); 1298 err_out_free_sw: 1299 netxen_free_sw_resources(adapter); 1300 return err; 1301 } 1302 1303 static void 1304 netxen_nic_detach(struct netxen_adapter *adapter) 1305 { 1306 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 1307 return; 1308 1309 netxen_remove_sysfs_entries(adapter); 1310 1311 netxen_free_hw_resources(adapter); 1312 netxen_release_rx_buffers(adapter); 1313 netxen_nic_free_irq(adapter); 1314 netxen_napi_del(adapter); 1315 netxen_free_sw_resources(adapter); 1316 1317 adapter->is_up = 0; 1318 } 1319 1320 int 1321 netxen_nic_reset_context(struct netxen_adapter *adapter) 1322 { 1323 int err = 0; 1324 struct net_device *netdev = adapter->netdev; 1325 1326 if (test_and_set_bit(__NX_RESETTING, &adapter->state)) 1327 return -EBUSY; 1328 1329 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { 1330 1331 netif_device_detach(netdev); 1332 1333 if (netif_running(netdev)) 1334 __netxen_nic_down(adapter, netdev); 1335 1336 netxen_nic_detach(adapter); 1337 1338 if (netif_running(netdev)) { 1339 err = netxen_nic_attach(adapter); 1340 if (!err) 1341 err = __netxen_nic_up(adapter, netdev); 1342 1343 if (err) 1344 goto done; 1345 } 1346 1347 netif_device_attach(netdev); 1348 } 1349 1350 done: 1351 clear_bit(__NX_RESETTING, &adapter->state); 1352 return err; 1353 } 1354 1355 static int 1356 netxen_setup_netdev(struct netxen_adapter *adapter, 1357 struct net_device *netdev) 1358 { 1359 int err = 0; 1360 struct pci_dev *pdev = adapter->pdev; 1361 1362 adapter->mc_enabled = 0; 1363 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1364 adapter->max_mc_count = 38; 1365 else 1366 adapter->max_mc_count = 16; 1367 1368 netdev->netdev_ops = &netxen_netdev_ops; 1369 netdev->watchdog_timeo = 5*HZ; 1370 1371 netxen_nic_change_mtu(netdev, netdev->mtu); 1372 1373 netdev->ethtool_ops = &netxen_nic_ethtool_ops; 1374 1375 netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO | 1376 NETIF_F_RXCSUM; 1377 1378 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1379 netdev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6; 1380 1381 netdev->vlan_features |= netdev->hw_features; 1382 1383 if (adapter->pci_using_dac) { 1384 netdev->features |= NETIF_F_HIGHDMA; 1385 netdev->vlan_features |= NETIF_F_HIGHDMA; 1386 } 1387 1388 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX) 1389 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX; 1390 1391 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO) 1392 netdev->hw_features |= NETIF_F_LRO; 1393 1394 netdev->features |= netdev->hw_features; 1395 1396 netdev->irq = adapter->msix_entries[0].vector; 1397 1398 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task); 1399 1400 if (netxen_read_mac_addr(adapter)) 1401 dev_warn(&pdev->dev, "failed to read mac addr\n"); 1402 1403 netif_carrier_off(netdev); 1404 1405 err = register_netdev(netdev); 1406 if (err) { 1407 dev_err(&pdev->dev, "failed to register net device\n"); 1408 return err; 1409 } 1410 1411 return 0; 1412 } 1413 1414 #define NETXEN_ULA_ADAPTER_KEY (0xdaddad01) 1415 #define NETXEN_NON_ULA_ADAPTER_KEY (0xdaddad00) 1416 1417 static void netxen_read_ula_info(struct netxen_adapter *adapter) 1418 { 1419 u32 temp; 1420 1421 /* Print ULA info only once for an adapter */ 1422 if (adapter->portnum != 0) 1423 return; 1424 1425 temp = NXRD32(adapter, NETXEN_ULA_KEY); 1426 switch (temp) { 1427 case NETXEN_ULA_ADAPTER_KEY: 1428 dev_info(&adapter->pdev->dev, "ULA adapter"); 1429 break; 1430 case NETXEN_NON_ULA_ADAPTER_KEY: 1431 dev_info(&adapter->pdev->dev, "non ULA adapter"); 1432 break; 1433 default: 1434 break; 1435 } 1436 1437 return; 1438 } 1439 1440 #ifdef CONFIG_PCIEAER 1441 static void netxen_mask_aer_correctable(struct netxen_adapter *adapter) 1442 { 1443 struct pci_dev *pdev = adapter->pdev; 1444 struct pci_dev *root = pdev->bus->self; 1445 u32 aer_pos; 1446 1447 /* root bus? */ 1448 if (!root) 1449 return; 1450 1451 if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM && 1452 adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP) 1453 return; 1454 1455 if (pci_pcie_type(root) != PCI_EXP_TYPE_ROOT_PORT) 1456 return; 1457 1458 aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR); 1459 if (!aer_pos) 1460 return; 1461 1462 pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff); 1463 } 1464 #endif 1465 1466 static int 1467 netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 1468 { 1469 struct net_device *netdev = NULL; 1470 struct netxen_adapter *adapter = NULL; 1471 int i = 0, err; 1472 int pci_func_id = PCI_FUNC(pdev->devfn); 1473 uint8_t revision_id; 1474 u32 val; 1475 1476 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) { 1477 pr_warn("%s: chip revisions between 0x%x-0x%x will not be enabled\n", 1478 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1); 1479 return -ENODEV; 1480 } 1481 1482 if ((err = pci_enable_device(pdev))) 1483 return err; 1484 1485 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { 1486 err = -ENODEV; 1487 goto err_out_disable_pdev; 1488 } 1489 1490 if ((err = pci_request_regions(pdev, netxen_nic_driver_name))) 1491 goto err_out_disable_pdev; 1492 1493 if (NX_IS_REVISION_P3(pdev->revision)) 1494 pci_enable_pcie_error_reporting(pdev); 1495 1496 pci_set_master(pdev); 1497 1498 netdev = alloc_etherdev(sizeof(struct netxen_adapter)); 1499 if(!netdev) { 1500 err = -ENOMEM; 1501 goto err_out_free_res; 1502 } 1503 1504 SET_NETDEV_DEV(netdev, &pdev->dev); 1505 1506 adapter = netdev_priv(netdev); 1507 adapter->netdev = netdev; 1508 adapter->pdev = pdev; 1509 adapter->ahw.pci_func = pci_func_id; 1510 1511 revision_id = pdev->revision; 1512 adapter->ahw.revision_id = revision_id; 1513 1514 rwlock_init(&adapter->ahw.crb_lock); 1515 spin_lock_init(&adapter->ahw.mem_lock); 1516 1517 spin_lock_init(&adapter->tx_clean_lock); 1518 INIT_LIST_HEAD(&adapter->mac_list); 1519 INIT_LIST_HEAD(&adapter->ip_list); 1520 1521 err = netxen_setup_pci_map(adapter); 1522 if (err) 1523 goto err_out_free_netdev; 1524 1525 /* This will be reset for mezz cards */ 1526 adapter->portnum = pci_func_id; 1527 1528 err = netxen_nic_get_board_info(adapter); 1529 if (err) { 1530 dev_err(&pdev->dev, "Error getting board config info.\n"); 1531 goto err_out_iounmap; 1532 } 1533 1534 #ifdef CONFIG_PCIEAER 1535 netxen_mask_aer_correctable(adapter); 1536 #endif 1537 1538 /* Mezz cards have PCI function 0,2,3 enabled */ 1539 switch (adapter->ahw.board_type) { 1540 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ: 1541 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ: 1542 if (pci_func_id >= 2) 1543 adapter->portnum = pci_func_id - 2; 1544 break; 1545 default: 1546 break; 1547 } 1548 1549 err = netxen_check_flash_fw_compatibility(adapter); 1550 if (err) 1551 goto err_out_iounmap; 1552 1553 if (adapter->portnum == 0) { 1554 val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 1555 if (val != 0xffffffff && val != 0) { 1556 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0); 1557 adapter->need_fw_reset = 1; 1558 } 1559 } 1560 1561 err = netxen_start_firmware(adapter); 1562 if (err) 1563 goto err_out_decr_ref; 1564 1565 /* 1566 * See if the firmware gave us a virtual-physical port mapping. 1567 */ 1568 adapter->physical_port = adapter->portnum; 1569 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 1570 i = NXRD32(adapter, CRB_V2P(adapter->portnum)); 1571 if (i != 0x55555555) 1572 adapter->physical_port = i; 1573 } 1574 1575 netxen_nic_clear_stats(adapter); 1576 1577 err = netxen_setup_intr(adapter); 1578 1579 if (err) { 1580 dev_err(&adapter->pdev->dev, 1581 "Failed to setup interrupts, error = %d\n", err); 1582 goto err_out_disable_msi; 1583 } 1584 1585 netxen_read_ula_info(adapter); 1586 1587 err = netxen_setup_netdev(adapter, netdev); 1588 if (err) 1589 goto err_out_disable_msi; 1590 1591 pci_set_drvdata(pdev, adapter); 1592 1593 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 1594 1595 switch (adapter->ahw.port_type) { 1596 case NETXEN_NIC_GBE: 1597 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n", 1598 adapter->netdev->name); 1599 break; 1600 case NETXEN_NIC_XGBE: 1601 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n", 1602 adapter->netdev->name); 1603 break; 1604 } 1605 1606 netxen_create_diag_entries(adapter); 1607 1608 return 0; 1609 1610 err_out_disable_msi: 1611 netxen_teardown_intr(adapter); 1612 1613 netxen_free_dummy_dma(adapter); 1614 1615 err_out_decr_ref: 1616 nx_decr_dev_ref_cnt(adapter); 1617 1618 err_out_iounmap: 1619 netxen_cleanup_pci_map(adapter); 1620 1621 err_out_free_netdev: 1622 free_netdev(netdev); 1623 1624 err_out_free_res: 1625 pci_release_regions(pdev); 1626 1627 err_out_disable_pdev: 1628 pci_disable_device(pdev); 1629 return err; 1630 } 1631 1632 static 1633 void netxen_cleanup_minidump(struct netxen_adapter *adapter) 1634 { 1635 kfree(adapter->mdump.md_template); 1636 adapter->mdump.md_template = NULL; 1637 1638 if (adapter->mdump.md_capture_buff) { 1639 vfree(adapter->mdump.md_capture_buff); 1640 adapter->mdump.md_capture_buff = NULL; 1641 } 1642 } 1643 1644 static void netxen_nic_remove(struct pci_dev *pdev) 1645 { 1646 struct netxen_adapter *adapter; 1647 struct net_device *netdev; 1648 1649 adapter = pci_get_drvdata(pdev); 1650 if (adapter == NULL) 1651 return; 1652 1653 netdev = adapter->netdev; 1654 1655 netxen_cancel_fw_work(adapter); 1656 1657 unregister_netdev(netdev); 1658 1659 cancel_work_sync(&adapter->tx_timeout_task); 1660 1661 netxen_free_ip_list(adapter, false); 1662 netxen_nic_detach(adapter); 1663 1664 nx_decr_dev_ref_cnt(adapter); 1665 1666 if (adapter->portnum == 0) 1667 netxen_free_dummy_dma(adapter); 1668 1669 clear_bit(__NX_RESETTING, &adapter->state); 1670 1671 netxen_teardown_intr(adapter); 1672 netxen_set_interrupt_mode(adapter, 0); 1673 netxen_remove_diag_entries(adapter); 1674 1675 netxen_cleanup_pci_map(adapter); 1676 1677 netxen_release_firmware(adapter); 1678 1679 if (NX_IS_REVISION_P3(pdev->revision)) { 1680 netxen_cleanup_minidump(adapter); 1681 pci_disable_pcie_error_reporting(pdev); 1682 } 1683 1684 pci_release_regions(pdev); 1685 pci_disable_device(pdev); 1686 1687 free_netdev(netdev); 1688 } 1689 1690 static void netxen_nic_detach_func(struct netxen_adapter *adapter) 1691 { 1692 struct net_device *netdev = adapter->netdev; 1693 1694 netif_device_detach(netdev); 1695 1696 netxen_cancel_fw_work(adapter); 1697 1698 if (netif_running(netdev)) 1699 netxen_nic_down(adapter, netdev); 1700 1701 cancel_work_sync(&adapter->tx_timeout_task); 1702 1703 netxen_nic_detach(adapter); 1704 1705 if (adapter->portnum == 0) 1706 netxen_free_dummy_dma(adapter); 1707 1708 nx_decr_dev_ref_cnt(adapter); 1709 1710 clear_bit(__NX_RESETTING, &adapter->state); 1711 } 1712 1713 static int netxen_nic_attach_func(struct pci_dev *pdev) 1714 { 1715 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1716 struct net_device *netdev = adapter->netdev; 1717 int err; 1718 1719 err = pci_enable_device(pdev); 1720 if (err) 1721 return err; 1722 1723 pci_set_power_state(pdev, PCI_D0); 1724 pci_set_master(pdev); 1725 pci_restore_state(pdev); 1726 1727 adapter->ahw.crb_win = -1; 1728 adapter->ahw.ocm_win = -1; 1729 1730 err = netxen_start_firmware(adapter); 1731 if (err) { 1732 dev_err(&pdev->dev, "failed to start firmware\n"); 1733 return err; 1734 } 1735 1736 if (netif_running(netdev)) { 1737 err = netxen_nic_attach(adapter); 1738 if (err) 1739 goto err_out; 1740 1741 err = netxen_nic_up(adapter, netdev); 1742 if (err) 1743 goto err_out_detach; 1744 1745 netxen_restore_indev_addr(netdev, NETDEV_UP); 1746 } 1747 1748 netif_device_attach(netdev); 1749 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 1750 return 0; 1751 1752 err_out_detach: 1753 netxen_nic_detach(adapter); 1754 err_out: 1755 nx_decr_dev_ref_cnt(adapter); 1756 return err; 1757 } 1758 1759 static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev, 1760 pci_channel_state_t state) 1761 { 1762 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1763 1764 if (state == pci_channel_io_perm_failure) 1765 return PCI_ERS_RESULT_DISCONNECT; 1766 1767 if (nx_dev_request_aer(adapter)) 1768 return PCI_ERS_RESULT_RECOVERED; 1769 1770 netxen_nic_detach_func(adapter); 1771 1772 pci_disable_device(pdev); 1773 1774 return PCI_ERS_RESULT_NEED_RESET; 1775 } 1776 1777 static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev) 1778 { 1779 int err = 0; 1780 1781 err = netxen_nic_attach_func(pdev); 1782 1783 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED; 1784 } 1785 1786 static void netxen_io_resume(struct pci_dev *pdev) 1787 { 1788 pci_cleanup_aer_uncorrect_error_status(pdev); 1789 } 1790 1791 static void netxen_nic_shutdown(struct pci_dev *pdev) 1792 { 1793 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1794 1795 netxen_nic_detach_func(adapter); 1796 1797 if (pci_save_state(pdev)) 1798 return; 1799 1800 if (netxen_nic_wol_supported(adapter)) { 1801 pci_enable_wake(pdev, PCI_D3cold, 1); 1802 pci_enable_wake(pdev, PCI_D3hot, 1); 1803 } 1804 1805 pci_disable_device(pdev); 1806 } 1807 1808 #ifdef CONFIG_PM 1809 static int 1810 netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state) 1811 { 1812 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1813 int retval; 1814 1815 netxen_nic_detach_func(adapter); 1816 1817 retval = pci_save_state(pdev); 1818 if (retval) 1819 return retval; 1820 1821 if (netxen_nic_wol_supported(adapter)) { 1822 pci_enable_wake(pdev, PCI_D3cold, 1); 1823 pci_enable_wake(pdev, PCI_D3hot, 1); 1824 } 1825 1826 pci_disable_device(pdev); 1827 pci_set_power_state(pdev, pci_choose_state(pdev, state)); 1828 1829 return 0; 1830 } 1831 1832 static int 1833 netxen_nic_resume(struct pci_dev *pdev) 1834 { 1835 return netxen_nic_attach_func(pdev); 1836 } 1837 #endif 1838 1839 static int netxen_nic_open(struct net_device *netdev) 1840 { 1841 struct netxen_adapter *adapter = netdev_priv(netdev); 1842 int err = 0; 1843 1844 if (adapter->driver_mismatch) 1845 return -EIO; 1846 1847 err = netxen_nic_attach(adapter); 1848 if (err) 1849 return err; 1850 1851 err = __netxen_nic_up(adapter, netdev); 1852 if (err) 1853 goto err_out; 1854 1855 netif_start_queue(netdev); 1856 1857 return 0; 1858 1859 err_out: 1860 netxen_nic_detach(adapter); 1861 return err; 1862 } 1863 1864 /* 1865 * netxen_nic_close - Disables a network interface entry point 1866 */ 1867 static int netxen_nic_close(struct net_device *netdev) 1868 { 1869 struct netxen_adapter *adapter = netdev_priv(netdev); 1870 1871 __netxen_nic_down(adapter, netdev); 1872 return 0; 1873 } 1874 1875 static void 1876 netxen_tso_check(struct net_device *netdev, 1877 struct nx_host_tx_ring *tx_ring, 1878 struct cmd_desc_type0 *first_desc, 1879 struct sk_buff *skb) 1880 { 1881 u8 opcode = TX_ETHER_PKT; 1882 __be16 protocol = skb->protocol; 1883 u16 flags = 0, vid = 0; 1884 u32 producer; 1885 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0; 1886 struct cmd_desc_type0 *hwdesc; 1887 struct vlan_ethhdr *vh; 1888 1889 if (protocol == cpu_to_be16(ETH_P_8021Q)) { 1890 1891 vh = (struct vlan_ethhdr *)skb->data; 1892 protocol = vh->h_vlan_encapsulated_proto; 1893 flags = FLAGS_VLAN_TAGGED; 1894 1895 } else if (skb_vlan_tag_present(skb)) { 1896 flags = FLAGS_VLAN_OOB; 1897 vid = skb_vlan_tag_get(skb); 1898 netxen_set_tx_vlan_tci(first_desc, vid); 1899 vlan_oob = 1; 1900 } 1901 1902 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) && 1903 skb_shinfo(skb)->gso_size > 0) { 1904 1905 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); 1906 1907 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); 1908 first_desc->total_hdr_length = hdr_len; 1909 if (vlan_oob) { 1910 first_desc->total_hdr_length += VLAN_HLEN; 1911 first_desc->tcp_hdr_offset = VLAN_HLEN; 1912 first_desc->ip_hdr_offset = VLAN_HLEN; 1913 /* Only in case of TSO on vlan device */ 1914 flags |= FLAGS_VLAN_TAGGED; 1915 } 1916 1917 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ? 1918 TX_TCP_LSO6 : TX_TCP_LSO; 1919 tso = 1; 1920 1921 } else if (skb->ip_summed == CHECKSUM_PARTIAL) { 1922 u8 l4proto; 1923 1924 if (protocol == cpu_to_be16(ETH_P_IP)) { 1925 l4proto = ip_hdr(skb)->protocol; 1926 1927 if (l4proto == IPPROTO_TCP) 1928 opcode = TX_TCP_PKT; 1929 else if(l4proto == IPPROTO_UDP) 1930 opcode = TX_UDP_PKT; 1931 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) { 1932 l4proto = ipv6_hdr(skb)->nexthdr; 1933 1934 if (l4proto == IPPROTO_TCP) 1935 opcode = TX_TCPV6_PKT; 1936 else if(l4proto == IPPROTO_UDP) 1937 opcode = TX_UDPV6_PKT; 1938 } 1939 } 1940 1941 first_desc->tcp_hdr_offset += skb_transport_offset(skb); 1942 first_desc->ip_hdr_offset += skb_network_offset(skb); 1943 netxen_set_tx_flags_opcode(first_desc, flags, opcode); 1944 1945 if (!tso) 1946 return; 1947 1948 /* For LSO, we need to copy the MAC/IP/TCP headers into 1949 * the descriptor ring 1950 */ 1951 producer = tx_ring->producer; 1952 copied = 0; 1953 offset = 2; 1954 1955 if (vlan_oob) { 1956 /* Create a TSO vlan header template for firmware */ 1957 1958 hwdesc = &tx_ring->desc_head[producer]; 1959 tx_ring->cmd_buf_arr[producer].skb = NULL; 1960 1961 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset, 1962 hdr_len + VLAN_HLEN); 1963 1964 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2); 1965 skb_copy_from_linear_data(skb, vh, 12); 1966 vh->h_vlan_proto = htons(ETH_P_8021Q); 1967 vh->h_vlan_TCI = htons(vid); 1968 skb_copy_from_linear_data_offset(skb, 12, 1969 (char *)vh + 16, copy_len - 16); 1970 1971 copied = copy_len - VLAN_HLEN; 1972 offset = 0; 1973 1974 producer = get_next_index(producer, tx_ring->num_desc); 1975 } 1976 1977 while (copied < hdr_len) { 1978 1979 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset, 1980 (hdr_len - copied)); 1981 1982 hwdesc = &tx_ring->desc_head[producer]; 1983 tx_ring->cmd_buf_arr[producer].skb = NULL; 1984 1985 skb_copy_from_linear_data_offset(skb, copied, 1986 (char *)hwdesc + offset, copy_len); 1987 1988 copied += copy_len; 1989 offset = 0; 1990 1991 producer = get_next_index(producer, tx_ring->num_desc); 1992 } 1993 1994 tx_ring->producer = producer; 1995 barrier(); 1996 } 1997 1998 static int 1999 netxen_map_tx_skb(struct pci_dev *pdev, 2000 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf) 2001 { 2002 struct netxen_skb_frag *nf; 2003 struct skb_frag_struct *frag; 2004 int i, nr_frags; 2005 dma_addr_t map; 2006 2007 nr_frags = skb_shinfo(skb)->nr_frags; 2008 nf = &pbuf->frag_array[0]; 2009 2010 map = pci_map_single(pdev, skb->data, 2011 skb_headlen(skb), PCI_DMA_TODEVICE); 2012 if (pci_dma_mapping_error(pdev, map)) 2013 goto out_err; 2014 2015 nf->dma = map; 2016 nf->length = skb_headlen(skb); 2017 2018 for (i = 0; i < nr_frags; i++) { 2019 frag = &skb_shinfo(skb)->frags[i]; 2020 nf = &pbuf->frag_array[i+1]; 2021 2022 map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag), 2023 DMA_TO_DEVICE); 2024 if (dma_mapping_error(&pdev->dev, map)) 2025 goto unwind; 2026 2027 nf->dma = map; 2028 nf->length = skb_frag_size(frag); 2029 } 2030 2031 return 0; 2032 2033 unwind: 2034 while (--i >= 0) { 2035 nf = &pbuf->frag_array[i+1]; 2036 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE); 2037 nf->dma = 0ULL; 2038 } 2039 2040 nf = &pbuf->frag_array[0]; 2041 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE); 2042 nf->dma = 0ULL; 2043 2044 out_err: 2045 return -ENOMEM; 2046 } 2047 2048 static inline void 2049 netxen_clear_cmddesc(u64 *desc) 2050 { 2051 desc[0] = 0ULL; 2052 desc[2] = 0ULL; 2053 } 2054 2055 static netdev_tx_t 2056 netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) 2057 { 2058 struct netxen_adapter *adapter = netdev_priv(netdev); 2059 struct nx_host_tx_ring *tx_ring = adapter->tx_ring; 2060 struct netxen_cmd_buffer *pbuf; 2061 struct netxen_skb_frag *buffrag; 2062 struct cmd_desc_type0 *hwdesc, *first_desc; 2063 struct pci_dev *pdev; 2064 int i, k; 2065 int delta = 0; 2066 struct skb_frag_struct *frag; 2067 2068 u32 producer; 2069 int frag_count, no_of_desc; 2070 u32 num_txd = tx_ring->num_desc; 2071 2072 frag_count = skb_shinfo(skb)->nr_frags + 1; 2073 2074 /* 14 frags supported for normal packet and 2075 * 32 frags supported for TSO packet 2076 */ 2077 if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) { 2078 2079 for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) { 2080 frag = &skb_shinfo(skb)->frags[i]; 2081 delta += skb_frag_size(frag); 2082 } 2083 2084 if (!__pskb_pull_tail(skb, delta)) 2085 goto drop_packet; 2086 2087 frag_count = 1 + skb_shinfo(skb)->nr_frags; 2088 } 2089 /* 4 fragments per cmd des */ 2090 no_of_desc = (frag_count + 3) >> 2; 2091 2092 if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) { 2093 netif_stop_queue(netdev); 2094 smp_mb(); 2095 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH) 2096 netif_start_queue(netdev); 2097 else 2098 return NETDEV_TX_BUSY; 2099 } 2100 2101 producer = tx_ring->producer; 2102 pbuf = &tx_ring->cmd_buf_arr[producer]; 2103 2104 pdev = adapter->pdev; 2105 2106 if (netxen_map_tx_skb(pdev, skb, pbuf)) 2107 goto drop_packet; 2108 2109 pbuf->skb = skb; 2110 pbuf->frag_count = frag_count; 2111 2112 first_desc = hwdesc = &tx_ring->desc_head[producer]; 2113 netxen_clear_cmddesc((u64 *)hwdesc); 2114 2115 netxen_set_tx_frags_len(first_desc, frag_count, skb->len); 2116 netxen_set_tx_port(first_desc, adapter->portnum); 2117 2118 for (i = 0; i < frag_count; i++) { 2119 2120 k = i % 4; 2121 2122 if ((k == 0) && (i > 0)) { 2123 /* move to next desc.*/ 2124 producer = get_next_index(producer, num_txd); 2125 hwdesc = &tx_ring->desc_head[producer]; 2126 netxen_clear_cmddesc((u64 *)hwdesc); 2127 tx_ring->cmd_buf_arr[producer].skb = NULL; 2128 } 2129 2130 buffrag = &pbuf->frag_array[i]; 2131 2132 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length); 2133 switch (k) { 2134 case 0: 2135 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma); 2136 break; 2137 case 1: 2138 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma); 2139 break; 2140 case 2: 2141 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma); 2142 break; 2143 case 3: 2144 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma); 2145 break; 2146 } 2147 } 2148 2149 tx_ring->producer = get_next_index(producer, num_txd); 2150 2151 netxen_tso_check(netdev, tx_ring, first_desc, skb); 2152 2153 adapter->stats.txbytes += skb->len; 2154 adapter->stats.xmitcalled++; 2155 2156 netxen_nic_update_cmd_producer(adapter, tx_ring); 2157 2158 return NETDEV_TX_OK; 2159 2160 drop_packet: 2161 adapter->stats.txdropped++; 2162 dev_kfree_skb_any(skb); 2163 return NETDEV_TX_OK; 2164 } 2165 2166 static int netxen_nic_check_temp(struct netxen_adapter *adapter) 2167 { 2168 struct net_device *netdev = adapter->netdev; 2169 uint32_t temp, temp_state, temp_val; 2170 int rv = 0; 2171 2172 temp = NXRD32(adapter, CRB_TEMP_STATE); 2173 2174 temp_state = nx_get_temp_state(temp); 2175 temp_val = nx_get_temp_val(temp); 2176 2177 if (temp_state == NX_TEMP_PANIC) { 2178 printk(KERN_ALERT 2179 "%s: Device temperature %d degrees C exceeds" 2180 " maximum allowed. Hardware has been shut down.\n", 2181 netdev->name, temp_val); 2182 rv = 1; 2183 } else if (temp_state == NX_TEMP_WARN) { 2184 if (adapter->temp == NX_TEMP_NORMAL) { 2185 printk(KERN_ALERT 2186 "%s: Device temperature %d degrees C " 2187 "exceeds operating range." 2188 " Immediate action needed.\n", 2189 netdev->name, temp_val); 2190 } 2191 } else { 2192 if (adapter->temp == NX_TEMP_WARN) { 2193 printk(KERN_INFO 2194 "%s: Device temperature is now %d degrees C" 2195 " in normal range.\n", netdev->name, 2196 temp_val); 2197 } 2198 } 2199 adapter->temp = temp_state; 2200 return rv; 2201 } 2202 2203 void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup) 2204 { 2205 struct net_device *netdev = adapter->netdev; 2206 2207 if (adapter->ahw.linkup && !linkup) { 2208 printk(KERN_INFO "%s: %s NIC Link is down\n", 2209 netxen_nic_driver_name, netdev->name); 2210 adapter->ahw.linkup = 0; 2211 if (netif_running(netdev)) { 2212 netif_carrier_off(netdev); 2213 netif_stop_queue(netdev); 2214 } 2215 adapter->link_changed = !adapter->has_link_events; 2216 } else if (!adapter->ahw.linkup && linkup) { 2217 printk(KERN_INFO "%s: %s NIC Link is up\n", 2218 netxen_nic_driver_name, netdev->name); 2219 adapter->ahw.linkup = 1; 2220 if (netif_running(netdev)) { 2221 netif_carrier_on(netdev); 2222 netif_wake_queue(netdev); 2223 } 2224 adapter->link_changed = !adapter->has_link_events; 2225 } 2226 } 2227 2228 static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter) 2229 { 2230 u32 val, port, linkup; 2231 2232 port = adapter->physical_port; 2233 2234 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 2235 val = NXRD32(adapter, CRB_XG_STATE_P3); 2236 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val); 2237 linkup = (val == XG_LINK_UP_P3); 2238 } else { 2239 val = NXRD32(adapter, CRB_XG_STATE); 2240 val = (val >> port*8) & 0xff; 2241 linkup = (val == XG_LINK_UP); 2242 } 2243 2244 netxen_advert_link_change(adapter, linkup); 2245 } 2246 2247 static void netxen_tx_timeout(struct net_device *netdev) 2248 { 2249 struct netxen_adapter *adapter = netdev_priv(netdev); 2250 2251 if (test_bit(__NX_RESETTING, &adapter->state)) 2252 return; 2253 2254 dev_err(&netdev->dev, "transmit timeout, resetting.\n"); 2255 schedule_work(&adapter->tx_timeout_task); 2256 } 2257 2258 static void netxen_tx_timeout_task(struct work_struct *work) 2259 { 2260 struct netxen_adapter *adapter = 2261 container_of(work, struct netxen_adapter, tx_timeout_task); 2262 2263 if (!netif_running(adapter->netdev)) 2264 return; 2265 2266 if (test_and_set_bit(__NX_RESETTING, &adapter->state)) 2267 return; 2268 2269 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS) 2270 goto request_reset; 2271 2272 rtnl_lock(); 2273 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 2274 /* try to scrub interrupt */ 2275 netxen_napi_disable(adapter); 2276 2277 netxen_napi_enable(adapter); 2278 2279 netif_wake_queue(adapter->netdev); 2280 2281 clear_bit(__NX_RESETTING, &adapter->state); 2282 } else { 2283 clear_bit(__NX_RESETTING, &adapter->state); 2284 if (netxen_nic_reset_context(adapter)) { 2285 rtnl_unlock(); 2286 goto request_reset; 2287 } 2288 } 2289 netif_trans_update(adapter->netdev); 2290 rtnl_unlock(); 2291 return; 2292 2293 request_reset: 2294 adapter->need_fw_reset = 1; 2295 clear_bit(__NX_RESETTING, &adapter->state); 2296 } 2297 2298 static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *netdev, 2299 struct rtnl_link_stats64 *stats) 2300 { 2301 struct netxen_adapter *adapter = netdev_priv(netdev); 2302 2303 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts; 2304 stats->tx_packets = adapter->stats.xmitfinished; 2305 stats->rx_bytes = adapter->stats.rxbytes; 2306 stats->tx_bytes = adapter->stats.txbytes; 2307 stats->rx_dropped = adapter->stats.rxdropped; 2308 stats->tx_dropped = adapter->stats.txdropped; 2309 2310 return stats; 2311 } 2312 2313 static irqreturn_t netxen_intr(int irq, void *data) 2314 { 2315 struct nx_host_sds_ring *sds_ring = data; 2316 struct netxen_adapter *adapter = sds_ring->adapter; 2317 u32 status = 0; 2318 2319 status = readl(adapter->isr_int_vec); 2320 2321 if (!(status & adapter->int_vec_bit)) 2322 return IRQ_NONE; 2323 2324 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 2325 /* check interrupt state machine, to be sure */ 2326 status = readl(adapter->crb_int_state_reg); 2327 if (!ISR_LEGACY_INT_TRIGGERED(status)) 2328 return IRQ_NONE; 2329 2330 } else { 2331 unsigned long our_int = 0; 2332 2333 our_int = readl(adapter->crb_int_state_reg); 2334 2335 /* not our interrupt */ 2336 if (!test_and_clear_bit((7 + adapter->portnum), &our_int)) 2337 return IRQ_NONE; 2338 2339 /* claim interrupt */ 2340 writel((our_int & 0xffffffff), adapter->crb_int_state_reg); 2341 2342 /* clear interrupt */ 2343 netxen_nic_disable_int(sds_ring); 2344 } 2345 2346 writel(0xffffffff, adapter->tgt_status_reg); 2347 /* read twice to ensure write is flushed */ 2348 readl(adapter->isr_int_vec); 2349 readl(adapter->isr_int_vec); 2350 2351 napi_schedule(&sds_ring->napi); 2352 2353 return IRQ_HANDLED; 2354 } 2355 2356 static irqreturn_t netxen_msi_intr(int irq, void *data) 2357 { 2358 struct nx_host_sds_ring *sds_ring = data; 2359 struct netxen_adapter *adapter = sds_ring->adapter; 2360 2361 /* clear interrupt */ 2362 writel(0xffffffff, adapter->tgt_status_reg); 2363 2364 napi_schedule(&sds_ring->napi); 2365 return IRQ_HANDLED; 2366 } 2367 2368 static irqreturn_t netxen_msix_intr(int irq, void *data) 2369 { 2370 struct nx_host_sds_ring *sds_ring = data; 2371 2372 napi_schedule(&sds_ring->napi); 2373 return IRQ_HANDLED; 2374 } 2375 2376 static int netxen_nic_poll(struct napi_struct *napi, int budget) 2377 { 2378 struct nx_host_sds_ring *sds_ring = 2379 container_of(napi, struct nx_host_sds_ring, napi); 2380 2381 struct netxen_adapter *adapter = sds_ring->adapter; 2382 2383 int tx_complete; 2384 int work_done; 2385 2386 tx_complete = netxen_process_cmd_ring(adapter); 2387 2388 work_done = netxen_process_rcv_ring(sds_ring, budget); 2389 2390 if (!tx_complete) 2391 work_done = budget; 2392 2393 if (work_done < budget) { 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 !(adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)) { 2769 if (!adapter->has_link_events) { 2770 2771 netxen_nic_handle_phy_intr(adapter); 2772 2773 if (adapter->link_changed) 2774 netxen_nic_set_link_parameters(adapter); 2775 } 2776 } 2777 2778 if (netxen_check_health(adapter)) 2779 return; 2780 2781 reschedule: 2782 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 2783 } 2784 2785 static ssize_t 2786 netxen_store_bridged_mode(struct device *dev, 2787 struct device_attribute *attr, const char *buf, size_t len) 2788 { 2789 struct net_device *net = to_net_dev(dev); 2790 struct netxen_adapter *adapter = netdev_priv(net); 2791 unsigned long new; 2792 int ret = -EINVAL; 2793 2794 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG)) 2795 goto err_out; 2796 2797 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 2798 goto err_out; 2799 2800 if (kstrtoul(buf, 2, &new)) 2801 goto err_out; 2802 2803 if (!netxen_config_bridged_mode(adapter, !!new)) 2804 ret = len; 2805 2806 err_out: 2807 return ret; 2808 } 2809 2810 static ssize_t 2811 netxen_show_bridged_mode(struct device *dev, 2812 struct device_attribute *attr, char *buf) 2813 { 2814 struct net_device *net = to_net_dev(dev); 2815 struct netxen_adapter *adapter; 2816 int bridged_mode = 0; 2817 2818 adapter = netdev_priv(net); 2819 2820 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) 2821 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED); 2822 2823 return sprintf(buf, "%d\n", bridged_mode); 2824 } 2825 2826 static struct device_attribute dev_attr_bridged_mode = { 2827 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)}, 2828 .show = netxen_show_bridged_mode, 2829 .store = netxen_store_bridged_mode, 2830 }; 2831 2832 static ssize_t 2833 netxen_store_diag_mode(struct device *dev, 2834 struct device_attribute *attr, const char *buf, size_t len) 2835 { 2836 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2837 unsigned long new; 2838 2839 if (kstrtoul(buf, 2, &new)) 2840 return -EINVAL; 2841 2842 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) 2843 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED; 2844 2845 return len; 2846 } 2847 2848 static ssize_t 2849 netxen_show_diag_mode(struct device *dev, 2850 struct device_attribute *attr, char *buf) 2851 { 2852 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2853 2854 return sprintf(buf, "%d\n", 2855 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)); 2856 } 2857 2858 static struct device_attribute dev_attr_diag_mode = { 2859 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)}, 2860 .show = netxen_show_diag_mode, 2861 .store = netxen_store_diag_mode, 2862 }; 2863 2864 static int 2865 netxen_sysfs_validate_crb(struct netxen_adapter *adapter, 2866 loff_t offset, size_t size) 2867 { 2868 size_t crb_size = 4; 2869 2870 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) 2871 return -EIO; 2872 2873 if (offset < NETXEN_PCI_CRBSPACE) { 2874 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 2875 return -EINVAL; 2876 2877 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, 2878 NETXEN_PCI_CAMQM_2M_END)) 2879 crb_size = 8; 2880 else 2881 return -EINVAL; 2882 } 2883 2884 if ((size != crb_size) || (offset & (crb_size-1))) 2885 return -EINVAL; 2886 2887 return 0; 2888 } 2889 2890 static ssize_t 2891 netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj, 2892 struct bin_attribute *attr, 2893 char *buf, loff_t offset, size_t size) 2894 { 2895 struct device *dev = kobj_to_dev(kobj); 2896 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2897 u32 data; 2898 u64 qmdata; 2899 int ret; 2900 2901 ret = netxen_sysfs_validate_crb(adapter, offset, size); 2902 if (ret != 0) 2903 return ret; 2904 2905 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && 2906 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, 2907 NETXEN_PCI_CAMQM_2M_END)) { 2908 netxen_pci_camqm_read_2M(adapter, offset, &qmdata); 2909 memcpy(buf, &qmdata, size); 2910 } else { 2911 data = NXRD32(adapter, offset); 2912 memcpy(buf, &data, size); 2913 } 2914 2915 return size; 2916 } 2917 2918 static ssize_t 2919 netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj, 2920 struct bin_attribute *attr, 2921 char *buf, loff_t offset, size_t size) 2922 { 2923 struct device *dev = kobj_to_dev(kobj); 2924 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2925 u32 data; 2926 u64 qmdata; 2927 int ret; 2928 2929 ret = netxen_sysfs_validate_crb(adapter, offset, size); 2930 if (ret != 0) 2931 return ret; 2932 2933 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && 2934 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, 2935 NETXEN_PCI_CAMQM_2M_END)) { 2936 memcpy(&qmdata, buf, size); 2937 netxen_pci_camqm_write_2M(adapter, offset, qmdata); 2938 } else { 2939 memcpy(&data, buf, size); 2940 NXWR32(adapter, offset, data); 2941 } 2942 2943 return size; 2944 } 2945 2946 static int 2947 netxen_sysfs_validate_mem(struct netxen_adapter *adapter, 2948 loff_t offset, size_t size) 2949 { 2950 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) 2951 return -EIO; 2952 2953 if ((size != 8) || (offset & 0x7)) 2954 return -EIO; 2955 2956 return 0; 2957 } 2958 2959 static ssize_t 2960 netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj, 2961 struct bin_attribute *attr, 2962 char *buf, loff_t offset, size_t size) 2963 { 2964 struct device *dev = kobj_to_dev(kobj); 2965 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2966 u64 data; 2967 int ret; 2968 2969 ret = netxen_sysfs_validate_mem(adapter, offset, size); 2970 if (ret != 0) 2971 return ret; 2972 2973 if (adapter->pci_mem_read(adapter, offset, &data)) 2974 return -EIO; 2975 2976 memcpy(buf, &data, size); 2977 2978 return size; 2979 } 2980 2981 static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj, 2982 struct bin_attribute *attr, char *buf, 2983 loff_t offset, size_t size) 2984 { 2985 struct device *dev = kobj_to_dev(kobj); 2986 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2987 u64 data; 2988 int ret; 2989 2990 ret = netxen_sysfs_validate_mem(adapter, offset, size); 2991 if (ret != 0) 2992 return ret; 2993 2994 memcpy(&data, buf, size); 2995 2996 if (adapter->pci_mem_write(adapter, offset, data)) 2997 return -EIO; 2998 2999 return size; 3000 } 3001 3002 3003 static struct bin_attribute bin_attr_crb = { 3004 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)}, 3005 .size = 0, 3006 .read = netxen_sysfs_read_crb, 3007 .write = netxen_sysfs_write_crb, 3008 }; 3009 3010 static struct bin_attribute bin_attr_mem = { 3011 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)}, 3012 .size = 0, 3013 .read = netxen_sysfs_read_mem, 3014 .write = netxen_sysfs_write_mem, 3015 }; 3016 3017 static ssize_t 3018 netxen_sysfs_read_dimm(struct file *filp, struct kobject *kobj, 3019 struct bin_attribute *attr, 3020 char *buf, loff_t offset, size_t size) 3021 { 3022 struct device *dev = kobj_to_dev(kobj); 3023 struct netxen_adapter *adapter = dev_get_drvdata(dev); 3024 struct net_device *netdev = adapter->netdev; 3025 struct netxen_dimm_cfg dimm; 3026 u8 dw, rows, cols, banks, ranks; 3027 u32 val; 3028 3029 if (size < attr->size) { 3030 netdev_err(netdev, "Invalid size\n"); 3031 return -EINVAL; 3032 } 3033 3034 memset(&dimm, 0, sizeof(struct netxen_dimm_cfg)); 3035 val = NXRD32(adapter, NETXEN_DIMM_CAPABILITY); 3036 3037 /* Checks if DIMM info is valid. */ 3038 if (val & NETXEN_DIMM_VALID_FLAG) { 3039 netdev_err(netdev, "Invalid DIMM flag\n"); 3040 dimm.presence = 0xff; 3041 goto out; 3042 } 3043 3044 rows = NETXEN_DIMM_NUMROWS(val); 3045 cols = NETXEN_DIMM_NUMCOLS(val); 3046 ranks = NETXEN_DIMM_NUMRANKS(val); 3047 banks = NETXEN_DIMM_NUMBANKS(val); 3048 dw = NETXEN_DIMM_DATAWIDTH(val); 3049 3050 dimm.presence = (val & NETXEN_DIMM_PRESENT); 3051 3052 /* Checks if DIMM info is present. */ 3053 if (!dimm.presence) { 3054 netdev_err(netdev, "DIMM not present\n"); 3055 goto out; 3056 } 3057 3058 dimm.dimm_type = NETXEN_DIMM_TYPE(val); 3059 3060 switch (dimm.dimm_type) { 3061 case NETXEN_DIMM_TYPE_RDIMM: 3062 case NETXEN_DIMM_TYPE_UDIMM: 3063 case NETXEN_DIMM_TYPE_SO_DIMM: 3064 case NETXEN_DIMM_TYPE_Micro_DIMM: 3065 case NETXEN_DIMM_TYPE_Mini_RDIMM: 3066 case NETXEN_DIMM_TYPE_Mini_UDIMM: 3067 break; 3068 default: 3069 netdev_err(netdev, "Invalid DIMM type %x\n", dimm.dimm_type); 3070 goto out; 3071 } 3072 3073 if (val & NETXEN_DIMM_MEMTYPE_DDR2_SDRAM) 3074 dimm.mem_type = NETXEN_DIMM_MEM_DDR2_SDRAM; 3075 else 3076 dimm.mem_type = NETXEN_DIMM_MEMTYPE(val); 3077 3078 if (val & NETXEN_DIMM_SIZE) { 3079 dimm.size = NETXEN_DIMM_STD_MEM_SIZE; 3080 goto out; 3081 } 3082 3083 if (!rows) { 3084 netdev_err(netdev, "Invalid no of rows %x\n", rows); 3085 goto out; 3086 } 3087 3088 if (!cols) { 3089 netdev_err(netdev, "Invalid no of columns %x\n", cols); 3090 goto out; 3091 } 3092 3093 if (!banks) { 3094 netdev_err(netdev, "Invalid no of banks %x\n", banks); 3095 goto out; 3096 } 3097 3098 ranks += 1; 3099 3100 switch (dw) { 3101 case 0x0: 3102 dw = 32; 3103 break; 3104 case 0x1: 3105 dw = 33; 3106 break; 3107 case 0x2: 3108 dw = 36; 3109 break; 3110 case 0x3: 3111 dw = 64; 3112 break; 3113 case 0x4: 3114 dw = 72; 3115 break; 3116 case 0x5: 3117 dw = 80; 3118 break; 3119 case 0x6: 3120 dw = 128; 3121 break; 3122 case 0x7: 3123 dw = 144; 3124 break; 3125 default: 3126 netdev_err(netdev, "Invalid data-width %x\n", dw); 3127 goto out; 3128 } 3129 3130 dimm.size = ((1 << rows) * (1 << cols) * dw * banks * ranks) / 8; 3131 /* Size returned in MB. */ 3132 dimm.size = (dimm.size) / 0x100000; 3133 out: 3134 memcpy(buf, &dimm, sizeof(struct netxen_dimm_cfg)); 3135 return sizeof(struct netxen_dimm_cfg); 3136 3137 } 3138 3139 static struct bin_attribute bin_attr_dimm = { 3140 .attr = { .name = "dimm", .mode = (S_IRUGO | S_IWUSR) }, 3141 .size = sizeof(struct netxen_dimm_cfg), 3142 .read = netxen_sysfs_read_dimm, 3143 }; 3144 3145 3146 static void 3147 netxen_create_sysfs_entries(struct netxen_adapter *adapter) 3148 { 3149 struct device *dev = &adapter->pdev->dev; 3150 3151 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) { 3152 /* bridged_mode control */ 3153 if (device_create_file(dev, &dev_attr_bridged_mode)) { 3154 dev_warn(dev, 3155 "failed to create bridged_mode sysfs entry\n"); 3156 } 3157 } 3158 } 3159 3160 static void 3161 netxen_remove_sysfs_entries(struct netxen_adapter *adapter) 3162 { 3163 struct device *dev = &adapter->pdev->dev; 3164 3165 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) 3166 device_remove_file(dev, &dev_attr_bridged_mode); 3167 } 3168 3169 static void 3170 netxen_create_diag_entries(struct netxen_adapter *adapter) 3171 { 3172 struct pci_dev *pdev = adapter->pdev; 3173 struct device *dev; 3174 3175 dev = &pdev->dev; 3176 if (device_create_file(dev, &dev_attr_diag_mode)) 3177 dev_info(dev, "failed to create diag_mode sysfs entry\n"); 3178 if (device_create_bin_file(dev, &bin_attr_crb)) 3179 dev_info(dev, "failed to create crb sysfs entry\n"); 3180 if (device_create_bin_file(dev, &bin_attr_mem)) 3181 dev_info(dev, "failed to create mem sysfs entry\n"); 3182 if (device_create_bin_file(dev, &bin_attr_dimm)) 3183 dev_info(dev, "failed to create dimm sysfs entry\n"); 3184 } 3185 3186 3187 static void 3188 netxen_remove_diag_entries(struct netxen_adapter *adapter) 3189 { 3190 struct pci_dev *pdev = adapter->pdev; 3191 struct device *dev = &pdev->dev; 3192 3193 device_remove_file(dev, &dev_attr_diag_mode); 3194 device_remove_bin_file(dev, &bin_attr_crb); 3195 device_remove_bin_file(dev, &bin_attr_mem); 3196 device_remove_bin_file(dev, &bin_attr_dimm); 3197 } 3198 3199 #ifdef CONFIG_INET 3200 3201 #define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops) 3202 3203 static int 3204 netxen_destip_supported(struct netxen_adapter *adapter) 3205 { 3206 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 3207 return 0; 3208 3209 if (adapter->ahw.cut_through) 3210 return 0; 3211 3212 return 1; 3213 } 3214 3215 static void 3216 netxen_free_ip_list(struct netxen_adapter *adapter, bool master) 3217 { 3218 struct nx_ip_list *cur, *tmp_cur; 3219 3220 list_for_each_entry_safe(cur, tmp_cur, &adapter->ip_list, list) { 3221 if (master) { 3222 if (cur->master) { 3223 netxen_config_ipaddr(adapter, cur->ip_addr, 3224 NX_IP_DOWN); 3225 list_del(&cur->list); 3226 kfree(cur); 3227 } 3228 } else { 3229 netxen_config_ipaddr(adapter, cur->ip_addr, NX_IP_DOWN); 3230 list_del(&cur->list); 3231 kfree(cur); 3232 } 3233 } 3234 } 3235 3236 static bool 3237 netxen_list_config_ip(struct netxen_adapter *adapter, 3238 struct in_ifaddr *ifa, unsigned long event) 3239 { 3240 struct net_device *dev; 3241 struct nx_ip_list *cur, *tmp_cur; 3242 struct list_head *head; 3243 bool ret = false; 3244 3245 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL; 3246 3247 if (dev == NULL) 3248 goto out; 3249 3250 switch (event) { 3251 case NX_IP_UP: 3252 list_for_each(head, &adapter->ip_list) { 3253 cur = list_entry(head, struct nx_ip_list, list); 3254 3255 if (cur->ip_addr == ifa->ifa_address) 3256 goto out; 3257 } 3258 3259 cur = kzalloc(sizeof(struct nx_ip_list), GFP_ATOMIC); 3260 if (cur == NULL) 3261 goto out; 3262 if (dev->priv_flags & IFF_802_1Q_VLAN) 3263 dev = vlan_dev_real_dev(dev); 3264 cur->master = !!netif_is_bond_master(dev); 3265 cur->ip_addr = ifa->ifa_address; 3266 list_add_tail(&cur->list, &adapter->ip_list); 3267 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP); 3268 ret = true; 3269 break; 3270 case NX_IP_DOWN: 3271 list_for_each_entry_safe(cur, tmp_cur, 3272 &adapter->ip_list, list) { 3273 if (cur->ip_addr == ifa->ifa_address) { 3274 list_del(&cur->list); 3275 kfree(cur); 3276 netxen_config_ipaddr(adapter, ifa->ifa_address, 3277 NX_IP_DOWN); 3278 ret = true; 3279 break; 3280 } 3281 } 3282 } 3283 out: 3284 return ret; 3285 } 3286 3287 static void 3288 netxen_config_indev_addr(struct netxen_adapter *adapter, 3289 struct net_device *dev, unsigned long event) 3290 { 3291 struct in_device *indev; 3292 3293 if (!netxen_destip_supported(adapter)) 3294 return; 3295 3296 indev = in_dev_get(dev); 3297 if (!indev) 3298 return; 3299 3300 for_ifa(indev) { 3301 switch (event) { 3302 case NETDEV_UP: 3303 netxen_list_config_ip(adapter, ifa, NX_IP_UP); 3304 break; 3305 case NETDEV_DOWN: 3306 netxen_list_config_ip(adapter, ifa, NX_IP_DOWN); 3307 break; 3308 default: 3309 break; 3310 } 3311 } endfor_ifa(indev); 3312 3313 in_dev_put(indev); 3314 } 3315 3316 static void 3317 netxen_restore_indev_addr(struct net_device *netdev, unsigned long event) 3318 3319 { 3320 struct netxen_adapter *adapter = netdev_priv(netdev); 3321 struct nx_ip_list *pos, *tmp_pos; 3322 unsigned long ip_event; 3323 3324 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN; 3325 netxen_config_indev_addr(adapter, netdev, event); 3326 3327 list_for_each_entry_safe(pos, tmp_pos, &adapter->ip_list, list) { 3328 netxen_config_ipaddr(adapter, pos->ip_addr, ip_event); 3329 } 3330 } 3331 3332 static inline bool 3333 netxen_config_checkdev(struct net_device *dev) 3334 { 3335 struct netxen_adapter *adapter; 3336 3337 if (!is_netxen_netdev(dev)) 3338 return false; 3339 adapter = netdev_priv(dev); 3340 if (!adapter) 3341 return false; 3342 if (!netxen_destip_supported(adapter)) 3343 return false; 3344 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 3345 return false; 3346 3347 return true; 3348 } 3349 3350 /** 3351 * netxen_config_master - configure addresses based on master 3352 * @dev: netxen device 3353 * @event: netdev event 3354 */ 3355 static void netxen_config_master(struct net_device *dev, unsigned long event) 3356 { 3357 struct net_device *master, *slave; 3358 struct netxen_adapter *adapter = netdev_priv(dev); 3359 3360 rcu_read_lock(); 3361 master = netdev_master_upper_dev_get_rcu(dev); 3362 /* 3363 * This is the case where the netxen nic is being 3364 * enslaved and is dev_open()ed in bond_enslave() 3365 * Now we should program the bond's (and its vlans') 3366 * addresses in the netxen NIC. 3367 */ 3368 if (master && netif_is_bond_master(master) && 3369 !netif_is_bond_slave(dev)) { 3370 netxen_config_indev_addr(adapter, master, event); 3371 for_each_netdev_rcu(&init_net, slave) 3372 if (slave->priv_flags & IFF_802_1Q_VLAN && 3373 vlan_dev_real_dev(slave) == master) 3374 netxen_config_indev_addr(adapter, slave, event); 3375 } 3376 rcu_read_unlock(); 3377 /* 3378 * This is the case where the netxen nic is being 3379 * released and is dev_close()ed in bond_release() 3380 * just before IFF_BONDING is stripped. 3381 */ 3382 if (!master && dev->priv_flags & IFF_BONDING) 3383 netxen_free_ip_list(adapter, true); 3384 } 3385 3386 static int netxen_netdev_event(struct notifier_block *this, 3387 unsigned long event, void *ptr) 3388 { 3389 struct netxen_adapter *adapter; 3390 struct net_device *dev = netdev_notifier_info_to_dev(ptr); 3391 struct net_device *orig_dev = dev; 3392 struct net_device *slave; 3393 3394 recheck: 3395 if (dev == NULL) 3396 goto done; 3397 3398 if (dev->priv_flags & IFF_802_1Q_VLAN) { 3399 dev = vlan_dev_real_dev(dev); 3400 goto recheck; 3401 } 3402 if (event == NETDEV_UP || event == NETDEV_DOWN) { 3403 /* If this is a bonding device, look for netxen-based slaves*/ 3404 if (netif_is_bond_master(dev)) { 3405 rcu_read_lock(); 3406 for_each_netdev_in_bond_rcu(dev, slave) { 3407 if (!netxen_config_checkdev(slave)) 3408 continue; 3409 adapter = netdev_priv(slave); 3410 netxen_config_indev_addr(adapter, 3411 orig_dev, event); 3412 } 3413 rcu_read_unlock(); 3414 } else { 3415 if (!netxen_config_checkdev(dev)) 3416 goto done; 3417 adapter = netdev_priv(dev); 3418 /* Act only if the actual netxen is the target */ 3419 if (orig_dev == dev) 3420 netxen_config_master(dev, event); 3421 netxen_config_indev_addr(adapter, orig_dev, event); 3422 } 3423 } 3424 done: 3425 return NOTIFY_DONE; 3426 } 3427 3428 static int 3429 netxen_inetaddr_event(struct notifier_block *this, 3430 unsigned long event, void *ptr) 3431 { 3432 struct netxen_adapter *adapter; 3433 struct net_device *dev, *slave; 3434 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr; 3435 unsigned long ip_event; 3436 3437 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL; 3438 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN; 3439 recheck: 3440 if (dev == NULL) 3441 goto done; 3442 3443 if (dev->priv_flags & IFF_802_1Q_VLAN) { 3444 dev = vlan_dev_real_dev(dev); 3445 goto recheck; 3446 } 3447 if (event == NETDEV_UP || event == NETDEV_DOWN) { 3448 /* If this is a bonding device, look for netxen-based slaves*/ 3449 if (netif_is_bond_master(dev)) { 3450 rcu_read_lock(); 3451 for_each_netdev_in_bond_rcu(dev, slave) { 3452 if (!netxen_config_checkdev(slave)) 3453 continue; 3454 adapter = netdev_priv(slave); 3455 netxen_list_config_ip(adapter, ifa, ip_event); 3456 } 3457 rcu_read_unlock(); 3458 } else { 3459 if (!netxen_config_checkdev(dev)) 3460 goto done; 3461 adapter = netdev_priv(dev); 3462 netxen_list_config_ip(adapter, ifa, ip_event); 3463 } 3464 } 3465 done: 3466 return NOTIFY_DONE; 3467 } 3468 3469 static struct notifier_block netxen_netdev_cb = { 3470 .notifier_call = netxen_netdev_event, 3471 }; 3472 3473 static struct notifier_block netxen_inetaddr_cb = { 3474 .notifier_call = netxen_inetaddr_event, 3475 }; 3476 #else 3477 static void 3478 netxen_restore_indev_addr(struct net_device *dev, unsigned long event) 3479 { } 3480 static void 3481 netxen_free_ip_list(struct netxen_adapter *adapter, bool master) 3482 { } 3483 #endif 3484 3485 static const struct pci_error_handlers netxen_err_handler = { 3486 .error_detected = netxen_io_error_detected, 3487 .slot_reset = netxen_io_slot_reset, 3488 .resume = netxen_io_resume, 3489 }; 3490 3491 static struct pci_driver netxen_driver = { 3492 .name = netxen_nic_driver_name, 3493 .id_table = netxen_pci_tbl, 3494 .probe = netxen_nic_probe, 3495 .remove = netxen_nic_remove, 3496 #ifdef CONFIG_PM 3497 .suspend = netxen_nic_suspend, 3498 .resume = netxen_nic_resume, 3499 #endif 3500 .shutdown = netxen_nic_shutdown, 3501 .err_handler = &netxen_err_handler 3502 }; 3503 3504 static int __init netxen_init_module(void) 3505 { 3506 printk(KERN_INFO "%s\n", netxen_nic_driver_string); 3507 3508 #ifdef CONFIG_INET 3509 register_netdevice_notifier(&netxen_netdev_cb); 3510 register_inetaddr_notifier(&netxen_inetaddr_cb); 3511 #endif 3512 return pci_register_driver(&netxen_driver); 3513 } 3514 3515 module_init(netxen_init_module); 3516 3517 static void __exit netxen_exit_module(void) 3518 { 3519 pci_unregister_driver(&netxen_driver); 3520 3521 #ifdef CONFIG_INET 3522 unregister_inetaddr_notifier(&netxen_inetaddr_cb); 3523 unregister_netdevice_notifier(&netxen_netdev_cb); 3524 #endif 3525 } 3526 3527 module_exit(netxen_exit_module); 3528