1 /* 2 * Copyright (C) 2003 - 2009 NetXen, Inc. 3 * Copyright (C) 2009 - QLogic Corporation. 4 * All rights reserved. 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License 8 * as published by the Free Software Foundation; either version 2 9 * of the License, or (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, but 12 * WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, 19 * MA 02111-1307, USA. 20 * 21 * The full GNU General Public License is included in this distribution 22 * in the file called "COPYING". 23 * 24 */ 25 26 #include <linux/slab.h> 27 #include <linux/vmalloc.h> 28 #include <linux/interrupt.h> 29 #include "netxen_nic_hw.h" 30 31 #include "netxen_nic.h" 32 33 #include <linux/dma-mapping.h> 34 #include <linux/if_vlan.h> 35 #include <net/ip.h> 36 #include <linux/ipv6.h> 37 #include <linux/inetdevice.h> 38 #include <linux/sysfs.h> 39 #include <linux/aer.h> 40 41 MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Intelligent Ethernet Driver"); 42 MODULE_LICENSE("GPL"); 43 MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID); 44 MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME); 45 46 char netxen_nic_driver_name[] = "netxen_nic"; 47 static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v" 48 NETXEN_NIC_LINUX_VERSIONID; 49 50 static int port_mode = NETXEN_PORT_MODE_AUTO_NEG; 51 52 /* Default to restricted 1G auto-neg mode */ 53 static int wol_port_mode = 5; 54 55 static int use_msi = 1; 56 57 static int use_msi_x = 1; 58 59 static int auto_fw_reset = AUTO_FW_RESET_ENABLED; 60 module_param(auto_fw_reset, int, 0644); 61 MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled"); 62 63 static int netxen_nic_probe(struct pci_dev *pdev, 64 const struct pci_device_id *ent); 65 static void netxen_nic_remove(struct pci_dev *pdev); 66 static int netxen_nic_open(struct net_device *netdev); 67 static int netxen_nic_close(struct net_device *netdev); 68 static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *, 69 struct net_device *); 70 static void netxen_tx_timeout(struct net_device *netdev); 71 static void netxen_tx_timeout_task(struct work_struct *work); 72 static void netxen_fw_poll_work(struct work_struct *work); 73 static void netxen_schedule_work(struct netxen_adapter *adapter, 74 work_func_t func, int delay); 75 static void netxen_cancel_fw_work(struct netxen_adapter *adapter); 76 static int netxen_nic_poll(struct napi_struct *napi, int budget); 77 #ifdef CONFIG_NET_POLL_CONTROLLER 78 static void netxen_nic_poll_controller(struct net_device *netdev); 79 #endif 80 81 static void netxen_create_sysfs_entries(struct netxen_adapter *adapter); 82 static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter); 83 static void netxen_create_diag_entries(struct netxen_adapter *adapter); 84 static void netxen_remove_diag_entries(struct netxen_adapter *adapter); 85 static int nx_dev_request_aer(struct netxen_adapter *adapter); 86 static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter); 87 static int netxen_can_start_firmware(struct netxen_adapter *adapter); 88 89 static irqreturn_t netxen_intr(int irq, void *data); 90 static irqreturn_t netxen_msi_intr(int irq, void *data); 91 static irqreturn_t netxen_msix_intr(int irq, void *data); 92 93 static void netxen_free_ip_list(struct netxen_adapter *, bool); 94 static void netxen_restore_indev_addr(struct net_device *dev, unsigned long); 95 static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *dev, 96 struct rtnl_link_stats64 *stats); 97 static int netxen_nic_set_mac(struct net_device *netdev, void *p); 98 99 /* PCI Device ID Table */ 100 #define ENTRY(device) \ 101 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \ 102 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0} 103 104 static DEFINE_PCI_DEVICE_TABLE(netxen_pci_tbl) = { 105 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR), 106 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4), 107 ENTRY(PCI_DEVICE_ID_NX2031_4GCU), 108 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ), 109 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ), 110 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT), 111 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2), 112 ENTRY(PCI_DEVICE_ID_NX3031), 113 {0,} 114 }; 115 116 MODULE_DEVICE_TABLE(pci, netxen_pci_tbl); 117 118 static uint32_t crb_cmd_producer[4] = { 119 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1, 120 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3 121 }; 122 123 void 124 netxen_nic_update_cmd_producer(struct netxen_adapter *adapter, 125 struct nx_host_tx_ring *tx_ring) 126 { 127 NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer); 128 } 129 130 static uint32_t crb_cmd_consumer[4] = { 131 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1, 132 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3 133 }; 134 135 static inline void 136 netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter, 137 struct nx_host_tx_ring *tx_ring) 138 { 139 NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer); 140 } 141 142 static uint32_t msi_tgt_status[8] = { 143 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1, 144 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3, 145 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5, 146 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7 147 }; 148 149 static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG; 150 151 static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring) 152 { 153 struct netxen_adapter *adapter = sds_ring->adapter; 154 155 NXWRIO(adapter, sds_ring->crb_intr_mask, 0); 156 } 157 158 static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring) 159 { 160 struct netxen_adapter *adapter = sds_ring->adapter; 161 162 NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1); 163 164 if (!NETXEN_IS_MSI_FAMILY(adapter)) 165 NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff); 166 } 167 168 static int 169 netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count) 170 { 171 int size = sizeof(struct nx_host_sds_ring) * count; 172 173 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL); 174 175 return recv_ctx->sds_rings == NULL; 176 } 177 178 static void 179 netxen_free_sds_rings(struct netxen_recv_context *recv_ctx) 180 { 181 if (recv_ctx->sds_rings != NULL) 182 kfree(recv_ctx->sds_rings); 183 184 recv_ctx->sds_rings = NULL; 185 } 186 187 static int 188 netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev) 189 { 190 int ring; 191 struct nx_host_sds_ring *sds_ring; 192 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 193 194 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings)) 195 return -ENOMEM; 196 197 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 198 sds_ring = &recv_ctx->sds_rings[ring]; 199 netif_napi_add(netdev, &sds_ring->napi, 200 netxen_nic_poll, NAPI_POLL_WEIGHT); 201 } 202 203 return 0; 204 } 205 206 static void 207 netxen_napi_del(struct netxen_adapter *adapter) 208 { 209 int ring; 210 struct nx_host_sds_ring *sds_ring; 211 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 212 213 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 214 sds_ring = &recv_ctx->sds_rings[ring]; 215 netif_napi_del(&sds_ring->napi); 216 } 217 218 netxen_free_sds_rings(&adapter->recv_ctx); 219 } 220 221 static void 222 netxen_napi_enable(struct netxen_adapter *adapter) 223 { 224 int ring; 225 struct nx_host_sds_ring *sds_ring; 226 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 227 228 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 229 sds_ring = &recv_ctx->sds_rings[ring]; 230 napi_enable(&sds_ring->napi); 231 netxen_nic_enable_int(sds_ring); 232 } 233 } 234 235 static void 236 netxen_napi_disable(struct netxen_adapter *adapter) 237 { 238 int ring; 239 struct nx_host_sds_ring *sds_ring; 240 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 241 242 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 243 sds_ring = &recv_ctx->sds_rings[ring]; 244 netxen_nic_disable_int(sds_ring); 245 napi_synchronize(&sds_ring->napi); 246 napi_disable(&sds_ring->napi); 247 } 248 } 249 250 static int nx_set_dma_mask(struct netxen_adapter *adapter) 251 { 252 struct pci_dev *pdev = adapter->pdev; 253 uint64_t mask, cmask; 254 255 adapter->pci_using_dac = 0; 256 257 mask = DMA_BIT_MASK(32); 258 cmask = DMA_BIT_MASK(32); 259 260 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 261 #ifndef CONFIG_IA64 262 mask = DMA_BIT_MASK(35); 263 #endif 264 } else { 265 mask = DMA_BIT_MASK(39); 266 cmask = mask; 267 } 268 269 if (pci_set_dma_mask(pdev, mask) == 0 && 270 pci_set_consistent_dma_mask(pdev, cmask) == 0) { 271 adapter->pci_using_dac = 1; 272 return 0; 273 } 274 275 return -EIO; 276 } 277 278 /* Update addressable range if firmware supports it */ 279 static int 280 nx_update_dma_mask(struct netxen_adapter *adapter) 281 { 282 int change, shift, err; 283 uint64_t mask, old_mask, old_cmask; 284 struct pci_dev *pdev = adapter->pdev; 285 286 change = 0; 287 288 shift = NXRD32(adapter, CRB_DMA_SHIFT); 289 if (shift > 32) 290 return 0; 291 292 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9)) 293 change = 1; 294 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4)) 295 change = 1; 296 297 if (change) { 298 old_mask = pdev->dma_mask; 299 old_cmask = pdev->dev.coherent_dma_mask; 300 301 mask = DMA_BIT_MASK(32+shift); 302 303 err = pci_set_dma_mask(pdev, mask); 304 if (err) 305 goto err_out; 306 307 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 308 309 err = pci_set_consistent_dma_mask(pdev, mask); 310 if (err) 311 goto err_out; 312 } 313 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift); 314 } 315 316 return 0; 317 318 err_out: 319 pci_set_dma_mask(pdev, old_mask); 320 pci_set_consistent_dma_mask(pdev, old_cmask); 321 return err; 322 } 323 324 static int 325 netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot) 326 { 327 u32 val, timeout; 328 329 if (first_boot == 0x55555555) { 330 /* This is the first boot after power up */ 331 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC); 332 333 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id)) 334 return 0; 335 336 /* PCI bus master workaround */ 337 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4)); 338 if (!(first_boot & 0x4)) { 339 first_boot |= 0x4; 340 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot); 341 NXRD32(adapter, NETXEN_PCIE_REG(0x4)); 342 } 343 344 /* This is the first boot after power up */ 345 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET); 346 if (first_boot != 0x80000f) { 347 /* clear the register for future unloads/loads */ 348 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0); 349 return -EIO; 350 } 351 352 /* Start P2 boot loader */ 353 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE); 354 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1); 355 timeout = 0; 356 do { 357 msleep(1); 358 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc)); 359 360 if (++timeout > 5000) 361 return -EIO; 362 363 } while (val == NETXEN_BDINFO_MAGIC); 364 } 365 return 0; 366 } 367 368 static void netxen_set_port_mode(struct netxen_adapter *adapter) 369 { 370 u32 val, data; 371 372 val = adapter->ahw.board_type; 373 if ((val == NETXEN_BRDTYPE_P3_HMEZ) || 374 (val == NETXEN_BRDTYPE_P3_XG_LOM)) { 375 if (port_mode == NETXEN_PORT_MODE_802_3_AP) { 376 data = NETXEN_PORT_MODE_802_3_AP; 377 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); 378 } else if (port_mode == NETXEN_PORT_MODE_XG) { 379 data = NETXEN_PORT_MODE_XG; 380 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); 381 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) { 382 data = NETXEN_PORT_MODE_AUTO_NEG_1G; 383 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); 384 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) { 385 data = NETXEN_PORT_MODE_AUTO_NEG_XG; 386 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); 387 } else { 388 data = NETXEN_PORT_MODE_AUTO_NEG; 389 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); 390 } 391 392 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) && 393 (wol_port_mode != NETXEN_PORT_MODE_XG) && 394 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) && 395 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) { 396 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG; 397 } 398 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode); 399 } 400 } 401 402 #define PCI_CAP_ID_GEN 0x10 403 404 static void netxen_pcie_strap_init(struct netxen_adapter *adapter) 405 { 406 u32 pdevfuncsave; 407 u32 c8c9value = 0; 408 u32 chicken = 0; 409 u32 control = 0; 410 int i, pos; 411 struct pci_dev *pdev; 412 413 pdev = adapter->pdev; 414 415 chicken = NXRD32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3)); 416 /* clear chicken3.25:24 */ 417 chicken &= 0xFCFFFFFF; 418 /* 419 * if gen1 and B0, set F1020 - if gen 2, do nothing 420 * if gen2 set to F1000 421 */ 422 pos = pci_find_capability(pdev, PCI_CAP_ID_GEN); 423 if (pos == 0xC0) { 424 pci_read_config_dword(pdev, pos + 0x10, &control); 425 if ((control & 0x000F0000) != 0x00020000) { 426 /* set chicken3.24 if gen1 */ 427 chicken |= 0x01000000; 428 } 429 dev_info(&adapter->pdev->dev, "Gen2 strapping detected\n"); 430 c8c9value = 0xF1000; 431 } else { 432 /* set chicken3.24 if gen1 */ 433 chicken |= 0x01000000; 434 dev_info(&adapter->pdev->dev, "Gen1 strapping detected\n"); 435 if (adapter->ahw.revision_id == NX_P3_B0) 436 c8c9value = 0xF1020; 437 else 438 c8c9value = 0; 439 } 440 441 NXWR32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3), chicken); 442 443 if (!c8c9value) 444 return; 445 446 pdevfuncsave = pdev->devfn; 447 if (pdevfuncsave & 0x07) 448 return; 449 450 for (i = 0; i < 8; i++) { 451 pci_read_config_dword(pdev, pos + 8, &control); 452 pci_read_config_dword(pdev, pos + 8, &control); 453 pci_write_config_dword(pdev, pos + 8, c8c9value); 454 pdev->devfn++; 455 } 456 pdev->devfn = pdevfuncsave; 457 } 458 459 static void netxen_set_msix_bit(struct pci_dev *pdev, int enable) 460 { 461 u32 control; 462 463 if (pdev->msix_cap) { 464 pci_read_config_dword(pdev, pdev->msix_cap, &control); 465 if (enable) 466 control |= PCI_MSIX_FLAGS_ENABLE; 467 else 468 control = 0; 469 pci_write_config_dword(pdev, pdev->msix_cap, control); 470 } 471 } 472 473 static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count) 474 { 475 int i; 476 477 for (i = 0; i < count; i++) 478 adapter->msix_entries[i].entry = i; 479 } 480 481 static int 482 netxen_read_mac_addr(struct netxen_adapter *adapter) 483 { 484 int i; 485 unsigned char *p; 486 u64 mac_addr; 487 struct net_device *netdev = adapter->netdev; 488 struct pci_dev *pdev = adapter->pdev; 489 490 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 491 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0) 492 return -EIO; 493 } else { 494 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0) 495 return -EIO; 496 } 497 498 p = (unsigned char *)&mac_addr; 499 for (i = 0; i < 6; i++) 500 netdev->dev_addr[i] = *(p + 5 - i); 501 502 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len); 503 504 /* set station address */ 505 506 if (!is_valid_ether_addr(netdev->dev_addr)) 507 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr); 508 509 return 0; 510 } 511 512 static int netxen_nic_set_mac(struct net_device *netdev, void *p) 513 { 514 struct netxen_adapter *adapter = netdev_priv(netdev); 515 struct sockaddr *addr = p; 516 517 if (!is_valid_ether_addr(addr->sa_data)) 518 return -EADDRNOTAVAIL; 519 520 if (netif_running(netdev)) { 521 netif_device_detach(netdev); 522 netxen_napi_disable(adapter); 523 } 524 525 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len); 526 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); 527 adapter->macaddr_set(adapter, addr->sa_data); 528 529 if (netif_running(netdev)) { 530 netif_device_attach(netdev); 531 netxen_napi_enable(adapter); 532 } 533 return 0; 534 } 535 536 static void netxen_set_multicast_list(struct net_device *dev) 537 { 538 struct netxen_adapter *adapter = netdev_priv(dev); 539 540 adapter->set_multi(dev); 541 } 542 543 static netdev_features_t netxen_fix_features(struct net_device *dev, 544 netdev_features_t features) 545 { 546 if (!(features & NETIF_F_RXCSUM)) { 547 netdev_info(dev, "disabling LRO as RXCSUM is off\n"); 548 549 features &= ~NETIF_F_LRO; 550 } 551 552 return features; 553 } 554 555 static int netxen_set_features(struct net_device *dev, 556 netdev_features_t features) 557 { 558 struct netxen_adapter *adapter = netdev_priv(dev); 559 int hw_lro; 560 561 if (!((dev->features ^ features) & NETIF_F_LRO)) 562 return 0; 563 564 hw_lro = (features & NETIF_F_LRO) ? NETXEN_NIC_LRO_ENABLED 565 : NETXEN_NIC_LRO_DISABLED; 566 567 if (netxen_config_hw_lro(adapter, hw_lro)) 568 return -EIO; 569 570 if (!(features & NETIF_F_LRO) && netxen_send_lro_cleanup(adapter)) 571 return -EIO; 572 573 return 0; 574 } 575 576 static const struct net_device_ops netxen_netdev_ops = { 577 .ndo_open = netxen_nic_open, 578 .ndo_stop = netxen_nic_close, 579 .ndo_start_xmit = netxen_nic_xmit_frame, 580 .ndo_get_stats64 = netxen_nic_get_stats, 581 .ndo_validate_addr = eth_validate_addr, 582 .ndo_set_rx_mode = netxen_set_multicast_list, 583 .ndo_set_mac_address = netxen_nic_set_mac, 584 .ndo_change_mtu = netxen_nic_change_mtu, 585 .ndo_tx_timeout = netxen_tx_timeout, 586 .ndo_fix_features = netxen_fix_features, 587 .ndo_set_features = netxen_set_features, 588 #ifdef CONFIG_NET_POLL_CONTROLLER 589 .ndo_poll_controller = netxen_nic_poll_controller, 590 #endif 591 }; 592 593 static inline bool netxen_function_zero(struct pci_dev *pdev) 594 { 595 return (PCI_FUNC(pdev->devfn) == 0) ? true : false; 596 } 597 598 static inline void netxen_set_interrupt_mode(struct netxen_adapter *adapter, 599 u32 mode) 600 { 601 NXWR32(adapter, NETXEN_INTR_MODE_REG, mode); 602 } 603 604 static inline u32 netxen_get_interrupt_mode(struct netxen_adapter *adapter) 605 { 606 return NXRD32(adapter, NETXEN_INTR_MODE_REG); 607 } 608 609 static void 610 netxen_initialize_interrupt_registers(struct netxen_adapter *adapter) 611 { 612 struct netxen_legacy_intr_set *legacy_intrp; 613 u32 tgt_status_reg, int_state_reg; 614 615 if (adapter->ahw.revision_id >= NX_P3_B0) 616 legacy_intrp = &legacy_intr[adapter->ahw.pci_func]; 617 else 618 legacy_intrp = &legacy_intr[0]; 619 620 tgt_status_reg = legacy_intrp->tgt_status_reg; 621 int_state_reg = ISR_INT_STATE_REG; 622 623 adapter->int_vec_bit = legacy_intrp->int_vec_bit; 624 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, tgt_status_reg); 625 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter, 626 legacy_intrp->tgt_mask_reg); 627 adapter->pci_int_reg = netxen_get_ioaddr(adapter, 628 legacy_intrp->pci_int_reg); 629 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR); 630 631 if (adapter->ahw.revision_id >= NX_P3_B1) 632 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter, 633 int_state_reg); 634 else 635 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter, 636 CRB_INT_VECTOR); 637 } 638 639 static int netxen_setup_msi_interrupts(struct netxen_adapter *adapter, 640 int num_msix) 641 { 642 struct pci_dev *pdev = adapter->pdev; 643 u32 value; 644 int err; 645 646 if (adapter->msix_supported) { 647 netxen_init_msix_entries(adapter, num_msix); 648 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix); 649 if (err == 0) { 650 adapter->flags |= NETXEN_NIC_MSIX_ENABLED; 651 netxen_set_msix_bit(pdev, 1); 652 653 if (adapter->rss_supported) 654 adapter->max_sds_rings = num_msix; 655 656 dev_info(&pdev->dev, "using msi-x interrupts\n"); 657 return 0; 658 } 659 /* fall through for msi */ 660 } 661 662 if (use_msi && !pci_enable_msi(pdev)) { 663 value = msi_tgt_status[adapter->ahw.pci_func]; 664 adapter->flags |= NETXEN_NIC_MSI_ENABLED; 665 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, value); 666 adapter->msix_entries[0].vector = pdev->irq; 667 dev_info(&pdev->dev, "using msi interrupts\n"); 668 return 0; 669 } 670 671 dev_err(&pdev->dev, "Failed to acquire MSI-X/MSI interrupt vector\n"); 672 return -EIO; 673 } 674 675 static int netxen_setup_intr(struct netxen_adapter *adapter) 676 { 677 struct pci_dev *pdev = adapter->pdev; 678 int num_msix; 679 680 if (adapter->rss_supported) 681 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ? 682 MSIX_ENTRIES_PER_ADAPTER : 2; 683 else 684 num_msix = 1; 685 686 adapter->max_sds_rings = 1; 687 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED); 688 689 netxen_initialize_interrupt_registers(adapter); 690 netxen_set_msix_bit(pdev, 0); 691 692 if (netxen_function_zero(pdev)) { 693 if (!netxen_setup_msi_interrupts(adapter, num_msix)) 694 netxen_set_interrupt_mode(adapter, NETXEN_MSI_MODE); 695 else 696 netxen_set_interrupt_mode(adapter, NETXEN_INTX_MODE); 697 } else { 698 if (netxen_get_interrupt_mode(adapter) == NETXEN_MSI_MODE && 699 netxen_setup_msi_interrupts(adapter, num_msix)) { 700 dev_err(&pdev->dev, "Co-existence of MSI-X/MSI and INTx interrupts is not supported\n"); 701 return -EIO; 702 } 703 } 704 705 if (!NETXEN_IS_MSI_FAMILY(adapter)) { 706 adapter->msix_entries[0].vector = pdev->irq; 707 dev_info(&pdev->dev, "using legacy interrupts\n"); 708 } 709 return 0; 710 } 711 712 static void 713 netxen_teardown_intr(struct netxen_adapter *adapter) 714 { 715 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) 716 pci_disable_msix(adapter->pdev); 717 if (adapter->flags & NETXEN_NIC_MSI_ENABLED) 718 pci_disable_msi(adapter->pdev); 719 } 720 721 static void 722 netxen_cleanup_pci_map(struct netxen_adapter *adapter) 723 { 724 if (adapter->ahw.db_base != NULL) 725 iounmap(adapter->ahw.db_base); 726 if (adapter->ahw.pci_base0 != NULL) 727 iounmap(adapter->ahw.pci_base0); 728 if (adapter->ahw.pci_base1 != NULL) 729 iounmap(adapter->ahw.pci_base1); 730 if (adapter->ahw.pci_base2 != NULL) 731 iounmap(adapter->ahw.pci_base2); 732 } 733 734 static int 735 netxen_setup_pci_map(struct netxen_adapter *adapter) 736 { 737 void __iomem *db_ptr = NULL; 738 739 resource_size_t mem_base, db_base; 740 unsigned long mem_len, db_len = 0; 741 742 struct pci_dev *pdev = adapter->pdev; 743 int pci_func = adapter->ahw.pci_func; 744 struct netxen_hardware_context *ahw = &adapter->ahw; 745 746 int err = 0; 747 748 /* 749 * Set the CRB window to invalid. If any register in window 0 is 750 * accessed it should set the window to 0 and then reset it to 1. 751 */ 752 adapter->ahw.crb_win = -1; 753 adapter->ahw.ocm_win = -1; 754 755 /* remap phys address */ 756 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ 757 mem_len = pci_resource_len(pdev, 0); 758 759 /* 128 Meg of memory */ 760 if (mem_len == NETXEN_PCI_128MB_SIZE) { 761 762 ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE); 763 ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START, 764 SECOND_PAGE_GROUP_SIZE); 765 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START, 766 THIRD_PAGE_GROUP_SIZE); 767 if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL || 768 ahw->pci_base2 == NULL) { 769 dev_err(&pdev->dev, "failed to map PCI bar 0\n"); 770 err = -EIO; 771 goto err_out; 772 } 773 774 ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE; 775 776 } else if (mem_len == NETXEN_PCI_32MB_SIZE) { 777 778 ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE); 779 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START - 780 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE); 781 if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) { 782 dev_err(&pdev->dev, "failed to map PCI bar 0\n"); 783 err = -EIO; 784 goto err_out; 785 } 786 787 } else if (mem_len == NETXEN_PCI_2MB_SIZE) { 788 789 ahw->pci_base0 = pci_ioremap_bar(pdev, 0); 790 if (ahw->pci_base0 == NULL) { 791 dev_err(&pdev->dev, "failed to map PCI bar 0\n"); 792 return -EIO; 793 } 794 ahw->pci_len0 = mem_len; 795 } else { 796 return -EIO; 797 } 798 799 netxen_setup_hwops(adapter); 800 801 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20)); 802 803 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) { 804 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter, 805 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func))); 806 807 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 808 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter, 809 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func))); 810 } 811 812 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 813 goto skip_doorbell; 814 815 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ 816 db_len = pci_resource_len(pdev, 4); 817 818 if (db_len == 0) { 819 printk(KERN_ERR "%s: doorbell is disabled\n", 820 netxen_nic_driver_name); 821 err = -EIO; 822 goto err_out; 823 } 824 825 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES); 826 if (!db_ptr) { 827 printk(KERN_ERR "%s: Failed to allocate doorbell map.", 828 netxen_nic_driver_name); 829 err = -EIO; 830 goto err_out; 831 } 832 833 skip_doorbell: 834 adapter->ahw.db_base = db_ptr; 835 adapter->ahw.db_len = db_len; 836 return 0; 837 838 err_out: 839 netxen_cleanup_pci_map(adapter); 840 return err; 841 } 842 843 static void 844 netxen_check_options(struct netxen_adapter *adapter) 845 { 846 u32 fw_major, fw_minor, fw_build, prev_fw_version; 847 char brd_name[NETXEN_MAX_SHORT_NAME]; 848 char serial_num[32]; 849 int i, offset, val, err; 850 __le32 *ptr32; 851 struct pci_dev *pdev = adapter->pdev; 852 853 adapter->driver_mismatch = 0; 854 855 ptr32 = (__le32 *)&serial_num; 856 offset = NX_FW_SERIAL_NUM_OFFSET; 857 for (i = 0; i < 8; i++) { 858 if (netxen_rom_fast_read(adapter, offset, &val) == -1) { 859 dev_err(&pdev->dev, "error reading board info\n"); 860 adapter->driver_mismatch = 1; 861 return; 862 } 863 ptr32[i] = cpu_to_le32(val); 864 offset += sizeof(u32); 865 } 866 867 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR); 868 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR); 869 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB); 870 prev_fw_version = adapter->fw_version; 871 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build); 872 873 /* Get FW Mini Coredump template and store it */ 874 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 875 if (adapter->mdump.md_template == NULL || 876 adapter->fw_version > prev_fw_version) { 877 kfree(adapter->mdump.md_template); 878 adapter->mdump.md_template = NULL; 879 err = netxen_setup_minidump(adapter); 880 if (err) 881 dev_err(&adapter->pdev->dev, 882 "Failed to setup minidump rcode = %d\n", err); 883 } 884 } 885 886 if (adapter->portnum == 0) { 887 if (netxen_nic_get_brd_name_by_type(adapter->ahw.board_type, 888 brd_name)) 889 strcpy(serial_num, "Unknown"); 890 891 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n", 892 module_name(THIS_MODULE), 893 brd_name, serial_num, adapter->ahw.revision_id); 894 } 895 896 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) { 897 adapter->driver_mismatch = 1; 898 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n", 899 fw_major, fw_minor, fw_build); 900 return; 901 } 902 903 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 904 i = NXRD32(adapter, NETXEN_SRE_MISC); 905 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0; 906 } 907 908 dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d [%s]\n", 909 NETXEN_NIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build, 910 adapter->ahw.cut_through ? "cut-through" : "legacy"); 911 912 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222)) 913 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1); 914 915 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) { 916 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G; 917 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G; 918 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) { 919 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G; 920 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G; 921 } 922 923 adapter->msix_supported = 0; 924 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 925 adapter->msix_supported = !!use_msi_x; 926 adapter->rss_supported = !!use_msi_x; 927 } else { 928 u32 flashed_ver = 0; 929 netxen_rom_fast_read(adapter, 930 NX_FW_VERSION_OFFSET, (int *)&flashed_ver); 931 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver); 932 933 if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) { 934 switch (adapter->ahw.board_type) { 935 case NETXEN_BRDTYPE_P2_SB31_10G: 936 case NETXEN_BRDTYPE_P2_SB31_10G_CX4: 937 adapter->msix_supported = !!use_msi_x; 938 adapter->rss_supported = !!use_msi_x; 939 break; 940 default: 941 break; 942 } 943 } 944 } 945 946 adapter->num_txd = MAX_CMD_DESCRIPTORS; 947 948 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 949 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS; 950 adapter->max_rds_rings = 3; 951 } else { 952 adapter->num_lro_rxd = 0; 953 adapter->max_rds_rings = 2; 954 } 955 } 956 957 static int 958 netxen_start_firmware(struct netxen_adapter *adapter) 959 { 960 int val, err, first_boot; 961 struct pci_dev *pdev = adapter->pdev; 962 963 /* required for NX2031 dummy dma */ 964 err = nx_set_dma_mask(adapter); 965 if (err) 966 return err; 967 968 err = netxen_can_start_firmware(adapter); 969 970 if (err < 0) 971 return err; 972 973 if (!err) 974 goto wait_init; 975 976 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc)); 977 978 err = netxen_check_hw_init(adapter, first_boot); 979 if (err) { 980 dev_err(&pdev->dev, "error in init HW init sequence\n"); 981 return err; 982 } 983 984 netxen_request_firmware(adapter); 985 986 err = netxen_need_fw_reset(adapter); 987 if (err < 0) 988 goto err_out; 989 if (err == 0) 990 goto pcie_strap_init; 991 992 if (first_boot != 0x55555555) { 993 NXWR32(adapter, CRB_CMDPEG_STATE, 0); 994 netxen_pinit_from_rom(adapter); 995 msleep(1); 996 } 997 998 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555); 999 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0); 1000 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0); 1001 1002 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1003 netxen_set_port_mode(adapter); 1004 1005 err = netxen_load_firmware(adapter); 1006 if (err) 1007 goto err_out; 1008 1009 netxen_release_firmware(adapter); 1010 1011 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 1012 1013 /* Initialize multicast addr pool owners */ 1014 val = 0x7654; 1015 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) 1016 val |= 0x0f000000; 1017 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val); 1018 1019 } 1020 1021 err = netxen_init_dummy_dma(adapter); 1022 if (err) 1023 goto err_out; 1024 1025 /* 1026 * Tell the hardware our version number. 1027 */ 1028 val = (_NETXEN_NIC_LINUX_MAJOR << 16) 1029 | ((_NETXEN_NIC_LINUX_MINOR << 8)) 1030 | (_NETXEN_NIC_LINUX_SUBVERSION); 1031 NXWR32(adapter, CRB_DRIVER_VERSION, val); 1032 1033 pcie_strap_init: 1034 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1035 netxen_pcie_strap_init(adapter); 1036 1037 wait_init: 1038 /* Handshake with the card before we register the devices. */ 1039 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE); 1040 if (err) { 1041 netxen_free_dummy_dma(adapter); 1042 goto err_out; 1043 } 1044 1045 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY); 1046 1047 nx_update_dma_mask(adapter); 1048 1049 netxen_check_options(adapter); 1050 1051 adapter->need_fw_reset = 0; 1052 1053 /* fall through and release firmware */ 1054 1055 err_out: 1056 netxen_release_firmware(adapter); 1057 return err; 1058 } 1059 1060 static int 1061 netxen_nic_request_irq(struct netxen_adapter *adapter) 1062 { 1063 irq_handler_t handler; 1064 struct nx_host_sds_ring *sds_ring; 1065 int err, ring; 1066 1067 unsigned long flags = 0; 1068 struct net_device *netdev = adapter->netdev; 1069 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 1070 1071 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) 1072 handler = netxen_msix_intr; 1073 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED) 1074 handler = netxen_msi_intr; 1075 else { 1076 flags |= IRQF_SHARED; 1077 handler = netxen_intr; 1078 } 1079 adapter->irq = netdev->irq; 1080 1081 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 1082 sds_ring = &recv_ctx->sds_rings[ring]; 1083 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring); 1084 err = request_irq(sds_ring->irq, handler, 1085 flags, sds_ring->name, sds_ring); 1086 if (err) 1087 return err; 1088 } 1089 1090 return 0; 1091 } 1092 1093 static void 1094 netxen_nic_free_irq(struct netxen_adapter *adapter) 1095 { 1096 int ring; 1097 struct nx_host_sds_ring *sds_ring; 1098 1099 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 1100 1101 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 1102 sds_ring = &recv_ctx->sds_rings[ring]; 1103 free_irq(sds_ring->irq, sds_ring); 1104 } 1105 } 1106 1107 static void 1108 netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter) 1109 { 1110 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT; 1111 adapter->coal.normal.data.rx_time_us = 1112 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US; 1113 adapter->coal.normal.data.rx_packets = 1114 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS; 1115 adapter->coal.normal.data.tx_time_us = 1116 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US; 1117 adapter->coal.normal.data.tx_packets = 1118 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS; 1119 } 1120 1121 /* with rtnl_lock */ 1122 static int 1123 __netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev) 1124 { 1125 int err; 1126 1127 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 1128 return -EIO; 1129 1130 err = adapter->init_port(adapter, adapter->physical_port); 1131 if (err) { 1132 printk(KERN_ERR "%s: Failed to initialize port %d\n", 1133 netxen_nic_driver_name, adapter->portnum); 1134 return err; 1135 } 1136 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 1137 adapter->macaddr_set(adapter, adapter->mac_addr); 1138 1139 adapter->set_multi(netdev); 1140 adapter->set_mtu(adapter, netdev->mtu); 1141 1142 adapter->ahw.linkup = 0; 1143 1144 if (adapter->max_sds_rings > 1) 1145 netxen_config_rss(adapter, 1); 1146 1147 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1148 netxen_config_intr_coalesce(adapter); 1149 1150 if (netdev->features & NETIF_F_LRO) 1151 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED); 1152 1153 netxen_napi_enable(adapter); 1154 1155 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION) 1156 netxen_linkevent_request(adapter, 1); 1157 else 1158 netxen_nic_set_link_parameters(adapter); 1159 1160 set_bit(__NX_DEV_UP, &adapter->state); 1161 return 0; 1162 } 1163 1164 /* Usage: During resume and firmware recovery module.*/ 1165 1166 static inline int 1167 netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev) 1168 { 1169 int err = 0; 1170 1171 rtnl_lock(); 1172 if (netif_running(netdev)) 1173 err = __netxen_nic_up(adapter, netdev); 1174 rtnl_unlock(); 1175 1176 return err; 1177 } 1178 1179 /* with rtnl_lock */ 1180 static void 1181 __netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) 1182 { 1183 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 1184 return; 1185 1186 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state)) 1187 return; 1188 1189 smp_mb(); 1190 spin_lock(&adapter->tx_clean_lock); 1191 netif_carrier_off(netdev); 1192 netif_tx_disable(netdev); 1193 1194 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION) 1195 netxen_linkevent_request(adapter, 0); 1196 1197 if (adapter->stop_port) 1198 adapter->stop_port(adapter); 1199 1200 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1201 netxen_p3_free_mac_list(adapter); 1202 1203 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE); 1204 1205 netxen_napi_disable(adapter); 1206 1207 netxen_release_tx_buffers(adapter); 1208 spin_unlock(&adapter->tx_clean_lock); 1209 } 1210 1211 /* Usage: During suspend and firmware recovery module */ 1212 1213 static inline void 1214 netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) 1215 { 1216 rtnl_lock(); 1217 if (netif_running(netdev)) 1218 __netxen_nic_down(adapter, netdev); 1219 rtnl_unlock(); 1220 1221 } 1222 1223 static int 1224 netxen_nic_attach(struct netxen_adapter *adapter) 1225 { 1226 struct net_device *netdev = adapter->netdev; 1227 struct pci_dev *pdev = adapter->pdev; 1228 int err, ring; 1229 struct nx_host_rds_ring *rds_ring; 1230 struct nx_host_tx_ring *tx_ring; 1231 u32 capab2; 1232 1233 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) 1234 return 0; 1235 1236 err = netxen_init_firmware(adapter); 1237 if (err) 1238 return err; 1239 1240 adapter->flags &= ~NETXEN_FW_MSS_CAP; 1241 if (adapter->capabilities & NX_FW_CAPABILITY_MORE_CAPS) { 1242 capab2 = NXRD32(adapter, CRB_FW_CAPABILITIES_2); 1243 if (capab2 & NX_FW_CAPABILITY_2_LRO_MAX_TCP_SEG) 1244 adapter->flags |= NETXEN_FW_MSS_CAP; 1245 } 1246 1247 err = netxen_napi_add(adapter, netdev); 1248 if (err) 1249 return err; 1250 1251 err = netxen_alloc_sw_resources(adapter); 1252 if (err) { 1253 printk(KERN_ERR "%s: Error in setting sw resources\n", 1254 netdev->name); 1255 return err; 1256 } 1257 1258 err = netxen_alloc_hw_resources(adapter); 1259 if (err) { 1260 printk(KERN_ERR "%s: Error in setting hw resources\n", 1261 netdev->name); 1262 goto err_out_free_sw; 1263 } 1264 1265 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 1266 tx_ring = adapter->tx_ring; 1267 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter, 1268 crb_cmd_producer[adapter->portnum]); 1269 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter, 1270 crb_cmd_consumer[adapter->portnum]); 1271 1272 tx_ring->producer = 0; 1273 tx_ring->sw_consumer = 0; 1274 1275 netxen_nic_update_cmd_producer(adapter, tx_ring); 1276 netxen_nic_update_cmd_consumer(adapter, tx_ring); 1277 } 1278 1279 for (ring = 0; ring < adapter->max_rds_rings; ring++) { 1280 rds_ring = &adapter->recv_ctx.rds_rings[ring]; 1281 netxen_post_rx_buffers(adapter, ring, rds_ring); 1282 } 1283 1284 err = netxen_nic_request_irq(adapter); 1285 if (err) { 1286 dev_err(&pdev->dev, "%s: failed to setup interrupt\n", 1287 netdev->name); 1288 goto err_out_free_rxbuf; 1289 } 1290 1291 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1292 netxen_nic_init_coalesce_defaults(adapter); 1293 1294 netxen_create_sysfs_entries(adapter); 1295 1296 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC; 1297 return 0; 1298 1299 err_out_free_rxbuf: 1300 netxen_release_rx_buffers(adapter); 1301 netxen_free_hw_resources(adapter); 1302 err_out_free_sw: 1303 netxen_free_sw_resources(adapter); 1304 return err; 1305 } 1306 1307 static void 1308 netxen_nic_detach(struct netxen_adapter *adapter) 1309 { 1310 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 1311 return; 1312 1313 netxen_remove_sysfs_entries(adapter); 1314 1315 netxen_free_hw_resources(adapter); 1316 netxen_release_rx_buffers(adapter); 1317 netxen_nic_free_irq(adapter); 1318 netxen_napi_del(adapter); 1319 netxen_free_sw_resources(adapter); 1320 1321 adapter->is_up = 0; 1322 } 1323 1324 int 1325 netxen_nic_reset_context(struct netxen_adapter *adapter) 1326 { 1327 int err = 0; 1328 struct net_device *netdev = adapter->netdev; 1329 1330 if (test_and_set_bit(__NX_RESETTING, &adapter->state)) 1331 return -EBUSY; 1332 1333 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { 1334 1335 netif_device_detach(netdev); 1336 1337 if (netif_running(netdev)) 1338 __netxen_nic_down(adapter, netdev); 1339 1340 netxen_nic_detach(adapter); 1341 1342 if (netif_running(netdev)) { 1343 err = netxen_nic_attach(adapter); 1344 if (!err) 1345 err = __netxen_nic_up(adapter, netdev); 1346 1347 if (err) 1348 goto done; 1349 } 1350 1351 netif_device_attach(netdev); 1352 } 1353 1354 done: 1355 clear_bit(__NX_RESETTING, &adapter->state); 1356 return err; 1357 } 1358 1359 static int 1360 netxen_setup_netdev(struct netxen_adapter *adapter, 1361 struct net_device *netdev) 1362 { 1363 int err = 0; 1364 struct pci_dev *pdev = adapter->pdev; 1365 1366 adapter->mc_enabled = 0; 1367 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1368 adapter->max_mc_count = 38; 1369 else 1370 adapter->max_mc_count = 16; 1371 1372 netdev->netdev_ops = &netxen_netdev_ops; 1373 netdev->watchdog_timeo = 5*HZ; 1374 1375 netxen_nic_change_mtu(netdev, netdev->mtu); 1376 1377 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops); 1378 1379 netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO | 1380 NETIF_F_RXCSUM; 1381 1382 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1383 netdev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6; 1384 1385 netdev->vlan_features |= netdev->hw_features; 1386 1387 if (adapter->pci_using_dac) { 1388 netdev->features |= NETIF_F_HIGHDMA; 1389 netdev->vlan_features |= NETIF_F_HIGHDMA; 1390 } 1391 1392 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX) 1393 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX; 1394 1395 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO) 1396 netdev->hw_features |= NETIF_F_LRO; 1397 1398 netdev->features |= netdev->hw_features; 1399 1400 netdev->irq = adapter->msix_entries[0].vector; 1401 1402 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task); 1403 1404 if (netxen_read_mac_addr(adapter)) 1405 dev_warn(&pdev->dev, "failed to read mac addr\n"); 1406 1407 netif_carrier_off(netdev); 1408 1409 err = register_netdev(netdev); 1410 if (err) { 1411 dev_err(&pdev->dev, "failed to register net device\n"); 1412 return err; 1413 } 1414 1415 return 0; 1416 } 1417 1418 #ifdef CONFIG_PCIEAER 1419 static void netxen_mask_aer_correctable(struct netxen_adapter *adapter) 1420 { 1421 struct pci_dev *pdev = adapter->pdev; 1422 struct pci_dev *root = pdev->bus->self; 1423 u32 aer_pos; 1424 1425 /* root bus? */ 1426 if (!root) 1427 return; 1428 1429 if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM && 1430 adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP) 1431 return; 1432 1433 if (pci_pcie_type(root) != PCI_EXP_TYPE_ROOT_PORT) 1434 return; 1435 1436 aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR); 1437 if (!aer_pos) 1438 return; 1439 1440 pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff); 1441 } 1442 #endif 1443 1444 static int 1445 netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 1446 { 1447 struct net_device *netdev = NULL; 1448 struct netxen_adapter *adapter = NULL; 1449 int i = 0, err; 1450 int pci_func_id = PCI_FUNC(pdev->devfn); 1451 uint8_t revision_id; 1452 u32 val; 1453 1454 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) { 1455 pr_warning("%s: chip revisions between 0x%x-0x%x " 1456 "will not be enabled.\n", 1457 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1); 1458 return -ENODEV; 1459 } 1460 1461 if ((err = pci_enable_device(pdev))) 1462 return err; 1463 1464 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { 1465 err = -ENODEV; 1466 goto err_out_disable_pdev; 1467 } 1468 1469 if ((err = pci_request_regions(pdev, netxen_nic_driver_name))) 1470 goto err_out_disable_pdev; 1471 1472 if (NX_IS_REVISION_P3(pdev->revision)) 1473 pci_enable_pcie_error_reporting(pdev); 1474 1475 pci_set_master(pdev); 1476 1477 netdev = alloc_etherdev(sizeof(struct netxen_adapter)); 1478 if(!netdev) { 1479 err = -ENOMEM; 1480 goto err_out_free_res; 1481 } 1482 1483 SET_NETDEV_DEV(netdev, &pdev->dev); 1484 1485 adapter = netdev_priv(netdev); 1486 adapter->netdev = netdev; 1487 adapter->pdev = pdev; 1488 adapter->ahw.pci_func = pci_func_id; 1489 1490 revision_id = pdev->revision; 1491 adapter->ahw.revision_id = revision_id; 1492 1493 rwlock_init(&adapter->ahw.crb_lock); 1494 spin_lock_init(&adapter->ahw.mem_lock); 1495 1496 spin_lock_init(&adapter->tx_clean_lock); 1497 INIT_LIST_HEAD(&adapter->mac_list); 1498 INIT_LIST_HEAD(&adapter->ip_list); 1499 1500 err = netxen_setup_pci_map(adapter); 1501 if (err) 1502 goto err_out_free_netdev; 1503 1504 /* This will be reset for mezz cards */ 1505 adapter->portnum = pci_func_id; 1506 1507 err = netxen_nic_get_board_info(adapter); 1508 if (err) { 1509 dev_err(&pdev->dev, "Error getting board config info.\n"); 1510 goto err_out_iounmap; 1511 } 1512 1513 #ifdef CONFIG_PCIEAER 1514 netxen_mask_aer_correctable(adapter); 1515 #endif 1516 1517 /* Mezz cards have PCI function 0,2,3 enabled */ 1518 switch (adapter->ahw.board_type) { 1519 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ: 1520 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ: 1521 if (pci_func_id >= 2) 1522 adapter->portnum = pci_func_id - 2; 1523 break; 1524 default: 1525 break; 1526 } 1527 1528 err = netxen_check_flash_fw_compatibility(adapter); 1529 if (err) 1530 goto err_out_iounmap; 1531 1532 if (adapter->portnum == 0) { 1533 val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 1534 if (val != 0xffffffff && val != 0) { 1535 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0); 1536 adapter->need_fw_reset = 1; 1537 } 1538 } 1539 1540 err = netxen_start_firmware(adapter); 1541 if (err) 1542 goto err_out_decr_ref; 1543 1544 /* 1545 * See if the firmware gave us a virtual-physical port mapping. 1546 */ 1547 adapter->physical_port = adapter->portnum; 1548 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 1549 i = NXRD32(adapter, CRB_V2P(adapter->portnum)); 1550 if (i != 0x55555555) 1551 adapter->physical_port = i; 1552 } 1553 1554 netxen_nic_clear_stats(adapter); 1555 1556 err = netxen_setup_intr(adapter); 1557 1558 if (err) { 1559 dev_err(&adapter->pdev->dev, 1560 "Failed to setup interrupts, error = %d\n", err); 1561 goto err_out_disable_msi; 1562 } 1563 1564 err = netxen_setup_netdev(adapter, netdev); 1565 if (err) 1566 goto err_out_disable_msi; 1567 1568 pci_set_drvdata(pdev, adapter); 1569 1570 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 1571 1572 switch (adapter->ahw.port_type) { 1573 case NETXEN_NIC_GBE: 1574 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n", 1575 adapter->netdev->name); 1576 break; 1577 case NETXEN_NIC_XGBE: 1578 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n", 1579 adapter->netdev->name); 1580 break; 1581 } 1582 1583 netxen_create_diag_entries(adapter); 1584 1585 return 0; 1586 1587 err_out_disable_msi: 1588 netxen_teardown_intr(adapter); 1589 1590 netxen_free_dummy_dma(adapter); 1591 1592 err_out_decr_ref: 1593 nx_decr_dev_ref_cnt(adapter); 1594 1595 err_out_iounmap: 1596 netxen_cleanup_pci_map(adapter); 1597 1598 err_out_free_netdev: 1599 free_netdev(netdev); 1600 1601 err_out_free_res: 1602 pci_release_regions(pdev); 1603 1604 err_out_disable_pdev: 1605 pci_set_drvdata(pdev, NULL); 1606 pci_disable_device(pdev); 1607 return err; 1608 } 1609 1610 static 1611 void netxen_cleanup_minidump(struct netxen_adapter *adapter) 1612 { 1613 kfree(adapter->mdump.md_template); 1614 adapter->mdump.md_template = NULL; 1615 1616 if (adapter->mdump.md_capture_buff) { 1617 vfree(adapter->mdump.md_capture_buff); 1618 adapter->mdump.md_capture_buff = NULL; 1619 } 1620 } 1621 1622 static void netxen_nic_remove(struct pci_dev *pdev) 1623 { 1624 struct netxen_adapter *adapter; 1625 struct net_device *netdev; 1626 1627 adapter = pci_get_drvdata(pdev); 1628 if (adapter == NULL) 1629 return; 1630 1631 netdev = adapter->netdev; 1632 1633 netxen_cancel_fw_work(adapter); 1634 1635 unregister_netdev(netdev); 1636 1637 cancel_work_sync(&adapter->tx_timeout_task); 1638 1639 netxen_free_ip_list(adapter, false); 1640 netxen_nic_detach(adapter); 1641 1642 nx_decr_dev_ref_cnt(adapter); 1643 1644 if (adapter->portnum == 0) 1645 netxen_free_dummy_dma(adapter); 1646 1647 clear_bit(__NX_RESETTING, &adapter->state); 1648 1649 netxen_teardown_intr(adapter); 1650 netxen_set_interrupt_mode(adapter, 0); 1651 netxen_remove_diag_entries(adapter); 1652 1653 netxen_cleanup_pci_map(adapter); 1654 1655 netxen_release_firmware(adapter); 1656 1657 if (NX_IS_REVISION_P3(pdev->revision)) { 1658 netxen_cleanup_minidump(adapter); 1659 pci_disable_pcie_error_reporting(pdev); 1660 } 1661 1662 pci_release_regions(pdev); 1663 pci_disable_device(pdev); 1664 pci_set_drvdata(pdev, NULL); 1665 1666 free_netdev(netdev); 1667 } 1668 1669 static void netxen_nic_detach_func(struct netxen_adapter *adapter) 1670 { 1671 struct net_device *netdev = adapter->netdev; 1672 1673 netif_device_detach(netdev); 1674 1675 netxen_cancel_fw_work(adapter); 1676 1677 if (netif_running(netdev)) 1678 netxen_nic_down(adapter, netdev); 1679 1680 cancel_work_sync(&adapter->tx_timeout_task); 1681 1682 netxen_nic_detach(adapter); 1683 1684 if (adapter->portnum == 0) 1685 netxen_free_dummy_dma(adapter); 1686 1687 nx_decr_dev_ref_cnt(adapter); 1688 1689 clear_bit(__NX_RESETTING, &adapter->state); 1690 } 1691 1692 static int netxen_nic_attach_func(struct pci_dev *pdev) 1693 { 1694 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1695 struct net_device *netdev = adapter->netdev; 1696 int err; 1697 1698 err = pci_enable_device(pdev); 1699 if (err) 1700 return err; 1701 1702 pci_set_power_state(pdev, PCI_D0); 1703 pci_set_master(pdev); 1704 pci_restore_state(pdev); 1705 1706 adapter->ahw.crb_win = -1; 1707 adapter->ahw.ocm_win = -1; 1708 1709 err = netxen_start_firmware(adapter); 1710 if (err) { 1711 dev_err(&pdev->dev, "failed to start firmware\n"); 1712 return err; 1713 } 1714 1715 if (netif_running(netdev)) { 1716 err = netxen_nic_attach(adapter); 1717 if (err) 1718 goto err_out; 1719 1720 err = netxen_nic_up(adapter, netdev); 1721 if (err) 1722 goto err_out_detach; 1723 1724 netxen_restore_indev_addr(netdev, NETDEV_UP); 1725 } 1726 1727 netif_device_attach(netdev); 1728 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 1729 return 0; 1730 1731 err_out_detach: 1732 netxen_nic_detach(adapter); 1733 err_out: 1734 nx_decr_dev_ref_cnt(adapter); 1735 return err; 1736 } 1737 1738 static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev, 1739 pci_channel_state_t state) 1740 { 1741 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1742 1743 if (state == pci_channel_io_perm_failure) 1744 return PCI_ERS_RESULT_DISCONNECT; 1745 1746 if (nx_dev_request_aer(adapter)) 1747 return PCI_ERS_RESULT_RECOVERED; 1748 1749 netxen_nic_detach_func(adapter); 1750 1751 pci_disable_device(pdev); 1752 1753 return PCI_ERS_RESULT_NEED_RESET; 1754 } 1755 1756 static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev) 1757 { 1758 int err = 0; 1759 1760 err = netxen_nic_attach_func(pdev); 1761 1762 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED; 1763 } 1764 1765 static void netxen_io_resume(struct pci_dev *pdev) 1766 { 1767 pci_cleanup_aer_uncorrect_error_status(pdev); 1768 } 1769 1770 static void netxen_nic_shutdown(struct pci_dev *pdev) 1771 { 1772 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1773 1774 netxen_nic_detach_func(adapter); 1775 1776 if (pci_save_state(pdev)) 1777 return; 1778 1779 if (netxen_nic_wol_supported(adapter)) { 1780 pci_enable_wake(pdev, PCI_D3cold, 1); 1781 pci_enable_wake(pdev, PCI_D3hot, 1); 1782 } 1783 1784 pci_disable_device(pdev); 1785 } 1786 1787 #ifdef CONFIG_PM 1788 static int 1789 netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state) 1790 { 1791 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1792 int retval; 1793 1794 netxen_nic_detach_func(adapter); 1795 1796 retval = pci_save_state(pdev); 1797 if (retval) 1798 return retval; 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 pci_set_power_state(pdev, pci_choose_state(pdev, state)); 1807 1808 return 0; 1809 } 1810 1811 static int 1812 netxen_nic_resume(struct pci_dev *pdev) 1813 { 1814 return netxen_nic_attach_func(pdev); 1815 } 1816 #endif 1817 1818 static int netxen_nic_open(struct net_device *netdev) 1819 { 1820 struct netxen_adapter *adapter = netdev_priv(netdev); 1821 int err = 0; 1822 1823 if (adapter->driver_mismatch) 1824 return -EIO; 1825 1826 err = netxen_nic_attach(adapter); 1827 if (err) 1828 return err; 1829 1830 err = __netxen_nic_up(adapter, netdev); 1831 if (err) 1832 goto err_out; 1833 1834 netif_start_queue(netdev); 1835 1836 return 0; 1837 1838 err_out: 1839 netxen_nic_detach(adapter); 1840 return err; 1841 } 1842 1843 /* 1844 * netxen_nic_close - Disables a network interface entry point 1845 */ 1846 static int netxen_nic_close(struct net_device *netdev) 1847 { 1848 struct netxen_adapter *adapter = netdev_priv(netdev); 1849 1850 __netxen_nic_down(adapter, netdev); 1851 return 0; 1852 } 1853 1854 static void 1855 netxen_tso_check(struct net_device *netdev, 1856 struct nx_host_tx_ring *tx_ring, 1857 struct cmd_desc_type0 *first_desc, 1858 struct sk_buff *skb) 1859 { 1860 u8 opcode = TX_ETHER_PKT; 1861 __be16 protocol = skb->protocol; 1862 u16 flags = 0, vid = 0; 1863 u32 producer; 1864 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0; 1865 struct cmd_desc_type0 *hwdesc; 1866 struct vlan_ethhdr *vh; 1867 1868 if (protocol == cpu_to_be16(ETH_P_8021Q)) { 1869 1870 vh = (struct vlan_ethhdr *)skb->data; 1871 protocol = vh->h_vlan_encapsulated_proto; 1872 flags = FLAGS_VLAN_TAGGED; 1873 1874 } else if (vlan_tx_tag_present(skb)) { 1875 flags = FLAGS_VLAN_OOB; 1876 vid = vlan_tx_tag_get(skb); 1877 netxen_set_tx_vlan_tci(first_desc, vid); 1878 vlan_oob = 1; 1879 } 1880 1881 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) && 1882 skb_shinfo(skb)->gso_size > 0) { 1883 1884 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); 1885 1886 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); 1887 first_desc->total_hdr_length = hdr_len; 1888 if (vlan_oob) { 1889 first_desc->total_hdr_length += VLAN_HLEN; 1890 first_desc->tcp_hdr_offset = VLAN_HLEN; 1891 first_desc->ip_hdr_offset = VLAN_HLEN; 1892 /* Only in case of TSO on vlan device */ 1893 flags |= FLAGS_VLAN_TAGGED; 1894 } 1895 1896 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ? 1897 TX_TCP_LSO6 : TX_TCP_LSO; 1898 tso = 1; 1899 1900 } else if (skb->ip_summed == CHECKSUM_PARTIAL) { 1901 u8 l4proto; 1902 1903 if (protocol == cpu_to_be16(ETH_P_IP)) { 1904 l4proto = ip_hdr(skb)->protocol; 1905 1906 if (l4proto == IPPROTO_TCP) 1907 opcode = TX_TCP_PKT; 1908 else if(l4proto == IPPROTO_UDP) 1909 opcode = TX_UDP_PKT; 1910 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) { 1911 l4proto = ipv6_hdr(skb)->nexthdr; 1912 1913 if (l4proto == IPPROTO_TCP) 1914 opcode = TX_TCPV6_PKT; 1915 else if(l4proto == IPPROTO_UDP) 1916 opcode = TX_UDPV6_PKT; 1917 } 1918 } 1919 1920 first_desc->tcp_hdr_offset += skb_transport_offset(skb); 1921 first_desc->ip_hdr_offset += skb_network_offset(skb); 1922 netxen_set_tx_flags_opcode(first_desc, flags, opcode); 1923 1924 if (!tso) 1925 return; 1926 1927 /* For LSO, we need to copy the MAC/IP/TCP headers into 1928 * the descriptor ring 1929 */ 1930 producer = tx_ring->producer; 1931 copied = 0; 1932 offset = 2; 1933 1934 if (vlan_oob) { 1935 /* Create a TSO vlan header template for firmware */ 1936 1937 hwdesc = &tx_ring->desc_head[producer]; 1938 tx_ring->cmd_buf_arr[producer].skb = NULL; 1939 1940 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset, 1941 hdr_len + VLAN_HLEN); 1942 1943 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2); 1944 skb_copy_from_linear_data(skb, vh, 12); 1945 vh->h_vlan_proto = htons(ETH_P_8021Q); 1946 vh->h_vlan_TCI = htons(vid); 1947 skb_copy_from_linear_data_offset(skb, 12, 1948 (char *)vh + 16, copy_len - 16); 1949 1950 copied = copy_len - VLAN_HLEN; 1951 offset = 0; 1952 1953 producer = get_next_index(producer, tx_ring->num_desc); 1954 } 1955 1956 while (copied < hdr_len) { 1957 1958 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset, 1959 (hdr_len - copied)); 1960 1961 hwdesc = &tx_ring->desc_head[producer]; 1962 tx_ring->cmd_buf_arr[producer].skb = NULL; 1963 1964 skb_copy_from_linear_data_offset(skb, copied, 1965 (char *)hwdesc + offset, copy_len); 1966 1967 copied += copy_len; 1968 offset = 0; 1969 1970 producer = get_next_index(producer, tx_ring->num_desc); 1971 } 1972 1973 tx_ring->producer = producer; 1974 barrier(); 1975 } 1976 1977 static int 1978 netxen_map_tx_skb(struct pci_dev *pdev, 1979 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf) 1980 { 1981 struct netxen_skb_frag *nf; 1982 struct skb_frag_struct *frag; 1983 int i, nr_frags; 1984 dma_addr_t map; 1985 1986 nr_frags = skb_shinfo(skb)->nr_frags; 1987 nf = &pbuf->frag_array[0]; 1988 1989 map = pci_map_single(pdev, skb->data, 1990 skb_headlen(skb), PCI_DMA_TODEVICE); 1991 if (pci_dma_mapping_error(pdev, map)) 1992 goto out_err; 1993 1994 nf->dma = map; 1995 nf->length = skb_headlen(skb); 1996 1997 for (i = 0; i < nr_frags; i++) { 1998 frag = &skb_shinfo(skb)->frags[i]; 1999 nf = &pbuf->frag_array[i+1]; 2000 2001 map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag), 2002 DMA_TO_DEVICE); 2003 if (dma_mapping_error(&pdev->dev, map)) 2004 goto unwind; 2005 2006 nf->dma = map; 2007 nf->length = skb_frag_size(frag); 2008 } 2009 2010 return 0; 2011 2012 unwind: 2013 while (--i >= 0) { 2014 nf = &pbuf->frag_array[i+1]; 2015 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE); 2016 nf->dma = 0ULL; 2017 } 2018 2019 nf = &pbuf->frag_array[0]; 2020 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE); 2021 nf->dma = 0ULL; 2022 2023 out_err: 2024 return -ENOMEM; 2025 } 2026 2027 static inline void 2028 netxen_clear_cmddesc(u64 *desc) 2029 { 2030 desc[0] = 0ULL; 2031 desc[2] = 0ULL; 2032 } 2033 2034 static netdev_tx_t 2035 netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) 2036 { 2037 struct netxen_adapter *adapter = netdev_priv(netdev); 2038 struct nx_host_tx_ring *tx_ring = adapter->tx_ring; 2039 struct netxen_cmd_buffer *pbuf; 2040 struct netxen_skb_frag *buffrag; 2041 struct cmd_desc_type0 *hwdesc, *first_desc; 2042 struct pci_dev *pdev; 2043 int i, k; 2044 int delta = 0; 2045 struct skb_frag_struct *frag; 2046 2047 u32 producer; 2048 int frag_count, no_of_desc; 2049 u32 num_txd = tx_ring->num_desc; 2050 2051 frag_count = skb_shinfo(skb)->nr_frags + 1; 2052 2053 /* 14 frags supported for normal packet and 2054 * 32 frags supported for TSO packet 2055 */ 2056 if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) { 2057 2058 for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) { 2059 frag = &skb_shinfo(skb)->frags[i]; 2060 delta += skb_frag_size(frag); 2061 } 2062 2063 if (!__pskb_pull_tail(skb, delta)) 2064 goto drop_packet; 2065 2066 frag_count = 1 + skb_shinfo(skb)->nr_frags; 2067 } 2068 /* 4 fragments per cmd des */ 2069 no_of_desc = (frag_count + 3) >> 2; 2070 2071 if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) { 2072 netif_stop_queue(netdev); 2073 smp_mb(); 2074 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH) 2075 netif_start_queue(netdev); 2076 else 2077 return NETDEV_TX_BUSY; 2078 } 2079 2080 producer = tx_ring->producer; 2081 pbuf = &tx_ring->cmd_buf_arr[producer]; 2082 2083 pdev = adapter->pdev; 2084 2085 if (netxen_map_tx_skb(pdev, skb, pbuf)) 2086 goto drop_packet; 2087 2088 pbuf->skb = skb; 2089 pbuf->frag_count = frag_count; 2090 2091 first_desc = hwdesc = &tx_ring->desc_head[producer]; 2092 netxen_clear_cmddesc((u64 *)hwdesc); 2093 2094 netxen_set_tx_frags_len(first_desc, frag_count, skb->len); 2095 netxen_set_tx_port(first_desc, adapter->portnum); 2096 2097 for (i = 0; i < frag_count; i++) { 2098 2099 k = i % 4; 2100 2101 if ((k == 0) && (i > 0)) { 2102 /* move to next desc.*/ 2103 producer = get_next_index(producer, num_txd); 2104 hwdesc = &tx_ring->desc_head[producer]; 2105 netxen_clear_cmddesc((u64 *)hwdesc); 2106 tx_ring->cmd_buf_arr[producer].skb = NULL; 2107 } 2108 2109 buffrag = &pbuf->frag_array[i]; 2110 2111 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length); 2112 switch (k) { 2113 case 0: 2114 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma); 2115 break; 2116 case 1: 2117 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma); 2118 break; 2119 case 2: 2120 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma); 2121 break; 2122 case 3: 2123 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma); 2124 break; 2125 } 2126 } 2127 2128 tx_ring->producer = get_next_index(producer, num_txd); 2129 2130 netxen_tso_check(netdev, tx_ring, first_desc, skb); 2131 2132 adapter->stats.txbytes += skb->len; 2133 adapter->stats.xmitcalled++; 2134 2135 netxen_nic_update_cmd_producer(adapter, tx_ring); 2136 2137 return NETDEV_TX_OK; 2138 2139 drop_packet: 2140 adapter->stats.txdropped++; 2141 dev_kfree_skb_any(skb); 2142 return NETDEV_TX_OK; 2143 } 2144 2145 static int netxen_nic_check_temp(struct netxen_adapter *adapter) 2146 { 2147 struct net_device *netdev = adapter->netdev; 2148 uint32_t temp, temp_state, temp_val; 2149 int rv = 0; 2150 2151 temp = NXRD32(adapter, CRB_TEMP_STATE); 2152 2153 temp_state = nx_get_temp_state(temp); 2154 temp_val = nx_get_temp_val(temp); 2155 2156 if (temp_state == NX_TEMP_PANIC) { 2157 printk(KERN_ALERT 2158 "%s: Device temperature %d degrees C exceeds" 2159 " maximum allowed. Hardware has been shut down.\n", 2160 netdev->name, temp_val); 2161 rv = 1; 2162 } else if (temp_state == NX_TEMP_WARN) { 2163 if (adapter->temp == NX_TEMP_NORMAL) { 2164 printk(KERN_ALERT 2165 "%s: Device temperature %d degrees C " 2166 "exceeds operating range." 2167 " Immediate action needed.\n", 2168 netdev->name, temp_val); 2169 } 2170 } else { 2171 if (adapter->temp == NX_TEMP_WARN) { 2172 printk(KERN_INFO 2173 "%s: Device temperature is now %d degrees C" 2174 " in normal range.\n", netdev->name, 2175 temp_val); 2176 } 2177 } 2178 adapter->temp = temp_state; 2179 return rv; 2180 } 2181 2182 void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup) 2183 { 2184 struct net_device *netdev = adapter->netdev; 2185 2186 if (adapter->ahw.linkup && !linkup) { 2187 printk(KERN_INFO "%s: %s NIC Link is down\n", 2188 netxen_nic_driver_name, netdev->name); 2189 adapter->ahw.linkup = 0; 2190 if (netif_running(netdev)) { 2191 netif_carrier_off(netdev); 2192 netif_stop_queue(netdev); 2193 } 2194 adapter->link_changed = !adapter->has_link_events; 2195 } else if (!adapter->ahw.linkup && linkup) { 2196 printk(KERN_INFO "%s: %s NIC Link is up\n", 2197 netxen_nic_driver_name, netdev->name); 2198 adapter->ahw.linkup = 1; 2199 if (netif_running(netdev)) { 2200 netif_carrier_on(netdev); 2201 netif_wake_queue(netdev); 2202 } 2203 adapter->link_changed = !adapter->has_link_events; 2204 } 2205 } 2206 2207 static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter) 2208 { 2209 u32 val, port, linkup; 2210 2211 port = adapter->physical_port; 2212 2213 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 2214 val = NXRD32(adapter, CRB_XG_STATE_P3); 2215 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val); 2216 linkup = (val == XG_LINK_UP_P3); 2217 } else { 2218 val = NXRD32(adapter, CRB_XG_STATE); 2219 val = (val >> port*8) & 0xff; 2220 linkup = (val == XG_LINK_UP); 2221 } 2222 2223 netxen_advert_link_change(adapter, linkup); 2224 } 2225 2226 static void netxen_tx_timeout(struct net_device *netdev) 2227 { 2228 struct netxen_adapter *adapter = netdev_priv(netdev); 2229 2230 if (test_bit(__NX_RESETTING, &adapter->state)) 2231 return; 2232 2233 dev_err(&netdev->dev, "transmit timeout, resetting.\n"); 2234 schedule_work(&adapter->tx_timeout_task); 2235 } 2236 2237 static void netxen_tx_timeout_task(struct work_struct *work) 2238 { 2239 struct netxen_adapter *adapter = 2240 container_of(work, struct netxen_adapter, tx_timeout_task); 2241 2242 if (!netif_running(adapter->netdev)) 2243 return; 2244 2245 if (test_and_set_bit(__NX_RESETTING, &adapter->state)) 2246 return; 2247 2248 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS) 2249 goto request_reset; 2250 2251 rtnl_lock(); 2252 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 2253 /* try to scrub interrupt */ 2254 netxen_napi_disable(adapter); 2255 2256 netxen_napi_enable(adapter); 2257 2258 netif_wake_queue(adapter->netdev); 2259 2260 clear_bit(__NX_RESETTING, &adapter->state); 2261 } else { 2262 clear_bit(__NX_RESETTING, &adapter->state); 2263 if (netxen_nic_reset_context(adapter)) { 2264 rtnl_unlock(); 2265 goto request_reset; 2266 } 2267 } 2268 adapter->netdev->trans_start = jiffies; 2269 rtnl_unlock(); 2270 return; 2271 2272 request_reset: 2273 adapter->need_fw_reset = 1; 2274 clear_bit(__NX_RESETTING, &adapter->state); 2275 } 2276 2277 static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *netdev, 2278 struct rtnl_link_stats64 *stats) 2279 { 2280 struct netxen_adapter *adapter = netdev_priv(netdev); 2281 2282 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts; 2283 stats->tx_packets = adapter->stats.xmitfinished; 2284 stats->rx_bytes = adapter->stats.rxbytes; 2285 stats->tx_bytes = adapter->stats.txbytes; 2286 stats->rx_dropped = adapter->stats.rxdropped; 2287 stats->tx_dropped = adapter->stats.txdropped; 2288 2289 return stats; 2290 } 2291 2292 static irqreturn_t netxen_intr(int irq, void *data) 2293 { 2294 struct nx_host_sds_ring *sds_ring = data; 2295 struct netxen_adapter *adapter = sds_ring->adapter; 2296 u32 status = 0; 2297 2298 status = readl(adapter->isr_int_vec); 2299 2300 if (!(status & adapter->int_vec_bit)) 2301 return IRQ_NONE; 2302 2303 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 2304 /* check interrupt state machine, to be sure */ 2305 status = readl(adapter->crb_int_state_reg); 2306 if (!ISR_LEGACY_INT_TRIGGERED(status)) 2307 return IRQ_NONE; 2308 2309 } else { 2310 unsigned long our_int = 0; 2311 2312 our_int = readl(adapter->crb_int_state_reg); 2313 2314 /* not our interrupt */ 2315 if (!test_and_clear_bit((7 + adapter->portnum), &our_int)) 2316 return IRQ_NONE; 2317 2318 /* claim interrupt */ 2319 writel((our_int & 0xffffffff), adapter->crb_int_state_reg); 2320 2321 /* clear interrupt */ 2322 netxen_nic_disable_int(sds_ring); 2323 } 2324 2325 writel(0xffffffff, adapter->tgt_status_reg); 2326 /* read twice to ensure write is flushed */ 2327 readl(adapter->isr_int_vec); 2328 readl(adapter->isr_int_vec); 2329 2330 napi_schedule(&sds_ring->napi); 2331 2332 return IRQ_HANDLED; 2333 } 2334 2335 static irqreturn_t netxen_msi_intr(int irq, void *data) 2336 { 2337 struct nx_host_sds_ring *sds_ring = data; 2338 struct netxen_adapter *adapter = sds_ring->adapter; 2339 2340 /* clear interrupt */ 2341 writel(0xffffffff, adapter->tgt_status_reg); 2342 2343 napi_schedule(&sds_ring->napi); 2344 return IRQ_HANDLED; 2345 } 2346 2347 static irqreturn_t netxen_msix_intr(int irq, void *data) 2348 { 2349 struct nx_host_sds_ring *sds_ring = data; 2350 2351 napi_schedule(&sds_ring->napi); 2352 return IRQ_HANDLED; 2353 } 2354 2355 static int netxen_nic_poll(struct napi_struct *napi, int budget) 2356 { 2357 struct nx_host_sds_ring *sds_ring = 2358 container_of(napi, struct nx_host_sds_ring, napi); 2359 2360 struct netxen_adapter *adapter = sds_ring->adapter; 2361 2362 int tx_complete; 2363 int work_done; 2364 2365 tx_complete = netxen_process_cmd_ring(adapter); 2366 2367 work_done = netxen_process_rcv_ring(sds_ring, budget); 2368 2369 if ((work_done < budget) && tx_complete) { 2370 napi_complete(&sds_ring->napi); 2371 if (test_bit(__NX_DEV_UP, &adapter->state)) 2372 netxen_nic_enable_int(sds_ring); 2373 } 2374 2375 return work_done; 2376 } 2377 2378 #ifdef CONFIG_NET_POLL_CONTROLLER 2379 static void netxen_nic_poll_controller(struct net_device *netdev) 2380 { 2381 int ring; 2382 struct nx_host_sds_ring *sds_ring; 2383 struct netxen_adapter *adapter = netdev_priv(netdev); 2384 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 2385 2386 disable_irq(adapter->irq); 2387 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 2388 sds_ring = &recv_ctx->sds_rings[ring]; 2389 netxen_intr(adapter->irq, sds_ring); 2390 } 2391 enable_irq(adapter->irq); 2392 } 2393 #endif 2394 2395 static int 2396 nx_incr_dev_ref_cnt(struct netxen_adapter *adapter) 2397 { 2398 int count; 2399 if (netxen_api_lock(adapter)) 2400 return -EIO; 2401 2402 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2403 2404 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count); 2405 2406 netxen_api_unlock(adapter); 2407 return count; 2408 } 2409 2410 static int 2411 nx_decr_dev_ref_cnt(struct netxen_adapter *adapter) 2412 { 2413 int count, state; 2414 if (netxen_api_lock(adapter)) 2415 return -EIO; 2416 2417 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2418 WARN_ON(count == 0); 2419 2420 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count); 2421 state = NXRD32(adapter, NX_CRB_DEV_STATE); 2422 2423 if (count == 0 && state != NX_DEV_FAILED) 2424 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD); 2425 2426 netxen_api_unlock(adapter); 2427 return count; 2428 } 2429 2430 static int 2431 nx_dev_request_aer(struct netxen_adapter *adapter) 2432 { 2433 u32 state; 2434 int ret = -EINVAL; 2435 2436 if (netxen_api_lock(adapter)) 2437 return ret; 2438 2439 state = NXRD32(adapter, NX_CRB_DEV_STATE); 2440 2441 if (state == NX_DEV_NEED_AER) 2442 ret = 0; 2443 else if (state == NX_DEV_READY) { 2444 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER); 2445 ret = 0; 2446 } 2447 2448 netxen_api_unlock(adapter); 2449 return ret; 2450 } 2451 2452 int 2453 nx_dev_request_reset(struct netxen_adapter *adapter) 2454 { 2455 u32 state; 2456 int ret = -EINVAL; 2457 2458 if (netxen_api_lock(adapter)) 2459 return ret; 2460 2461 state = NXRD32(adapter, NX_CRB_DEV_STATE); 2462 2463 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) 2464 ret = 0; 2465 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) { 2466 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET); 2467 adapter->flags |= NETXEN_FW_RESET_OWNER; 2468 ret = 0; 2469 } 2470 2471 netxen_api_unlock(adapter); 2472 2473 return ret; 2474 } 2475 2476 static int 2477 netxen_can_start_firmware(struct netxen_adapter *adapter) 2478 { 2479 int count; 2480 int can_start = 0; 2481 2482 if (netxen_api_lock(adapter)) { 2483 nx_incr_dev_ref_cnt(adapter); 2484 return -1; 2485 } 2486 2487 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2488 2489 if ((count < 0) || (count >= NX_MAX_PCI_FUNC)) 2490 count = 0; 2491 2492 if (count == 0) { 2493 can_start = 1; 2494 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING); 2495 } 2496 2497 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count); 2498 2499 netxen_api_unlock(adapter); 2500 2501 return can_start; 2502 } 2503 2504 static void 2505 netxen_schedule_work(struct netxen_adapter *adapter, 2506 work_func_t func, int delay) 2507 { 2508 INIT_DELAYED_WORK(&adapter->fw_work, func); 2509 schedule_delayed_work(&adapter->fw_work, delay); 2510 } 2511 2512 static void 2513 netxen_cancel_fw_work(struct netxen_adapter *adapter) 2514 { 2515 while (test_and_set_bit(__NX_RESETTING, &adapter->state)) 2516 msleep(10); 2517 2518 cancel_delayed_work_sync(&adapter->fw_work); 2519 } 2520 2521 static void 2522 netxen_attach_work(struct work_struct *work) 2523 { 2524 struct netxen_adapter *adapter = container_of(work, 2525 struct netxen_adapter, fw_work.work); 2526 struct net_device *netdev = adapter->netdev; 2527 int err = 0; 2528 2529 if (netif_running(netdev)) { 2530 err = netxen_nic_attach(adapter); 2531 if (err) 2532 goto done; 2533 2534 err = netxen_nic_up(adapter, netdev); 2535 if (err) { 2536 netxen_nic_detach(adapter); 2537 goto done; 2538 } 2539 2540 netxen_restore_indev_addr(netdev, NETDEV_UP); 2541 } 2542 2543 netif_device_attach(netdev); 2544 2545 done: 2546 adapter->fw_fail_cnt = 0; 2547 clear_bit(__NX_RESETTING, &adapter->state); 2548 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 2549 } 2550 2551 static void 2552 netxen_fwinit_work(struct work_struct *work) 2553 { 2554 struct netxen_adapter *adapter = container_of(work, 2555 struct netxen_adapter, fw_work.work); 2556 int dev_state; 2557 int count; 2558 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE); 2559 if (adapter->flags & NETXEN_FW_RESET_OWNER) { 2560 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2561 WARN_ON(count == 0); 2562 if (count == 1) { 2563 if (adapter->mdump.md_enabled) { 2564 rtnl_lock(); 2565 netxen_dump_fw(adapter); 2566 rtnl_unlock(); 2567 } 2568 adapter->flags &= ~NETXEN_FW_RESET_OWNER; 2569 if (netxen_api_lock(adapter)) { 2570 clear_bit(__NX_RESETTING, &adapter->state); 2571 NXWR32(adapter, NX_CRB_DEV_STATE, 2572 NX_DEV_FAILED); 2573 return; 2574 } 2575 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2576 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count); 2577 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD); 2578 dev_state = NX_DEV_COLD; 2579 netxen_api_unlock(adapter); 2580 } 2581 } 2582 2583 switch (dev_state) { 2584 case NX_DEV_COLD: 2585 case NX_DEV_READY: 2586 if (!netxen_start_firmware(adapter)) { 2587 netxen_schedule_work(adapter, netxen_attach_work, 0); 2588 return; 2589 } 2590 break; 2591 2592 case NX_DEV_NEED_RESET: 2593 case NX_DEV_INITALIZING: 2594 netxen_schedule_work(adapter, 2595 netxen_fwinit_work, 2 * FW_POLL_DELAY); 2596 return; 2597 2598 case NX_DEV_FAILED: 2599 default: 2600 nx_incr_dev_ref_cnt(adapter); 2601 break; 2602 } 2603 2604 if (netxen_api_lock(adapter)) { 2605 clear_bit(__NX_RESETTING, &adapter->state); 2606 return; 2607 } 2608 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_FAILED); 2609 netxen_api_unlock(adapter); 2610 dev_err(&adapter->pdev->dev, "%s: Device initialization Failed\n", 2611 adapter->netdev->name); 2612 2613 clear_bit(__NX_RESETTING, &adapter->state); 2614 } 2615 2616 static void 2617 netxen_detach_work(struct work_struct *work) 2618 { 2619 struct netxen_adapter *adapter = container_of(work, 2620 struct netxen_adapter, fw_work.work); 2621 struct net_device *netdev = adapter->netdev; 2622 int ref_cnt = 0, delay; 2623 u32 status; 2624 2625 netif_device_detach(netdev); 2626 2627 netxen_nic_down(adapter, netdev); 2628 2629 rtnl_lock(); 2630 netxen_nic_detach(adapter); 2631 rtnl_unlock(); 2632 2633 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1); 2634 2635 if (status & NX_RCODE_FATAL_ERROR) 2636 goto err_ret; 2637 2638 if (adapter->temp == NX_TEMP_PANIC) 2639 goto err_ret; 2640 2641 if (!(adapter->flags & NETXEN_FW_RESET_OWNER)) 2642 ref_cnt = nx_decr_dev_ref_cnt(adapter); 2643 2644 if (ref_cnt == -EIO) 2645 goto err_ret; 2646 2647 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY); 2648 2649 adapter->fw_wait_cnt = 0; 2650 netxen_schedule_work(adapter, netxen_fwinit_work, delay); 2651 2652 return; 2653 2654 err_ret: 2655 clear_bit(__NX_RESETTING, &adapter->state); 2656 } 2657 2658 static int 2659 netxen_check_health(struct netxen_adapter *adapter) 2660 { 2661 u32 state, heartbit; 2662 u32 peg_status; 2663 struct net_device *netdev = adapter->netdev; 2664 2665 state = NXRD32(adapter, NX_CRB_DEV_STATE); 2666 if (state == NX_DEV_NEED_AER) 2667 return 0; 2668 2669 if (netxen_nic_check_temp(adapter)) 2670 goto detach; 2671 2672 if (adapter->need_fw_reset) { 2673 if (nx_dev_request_reset(adapter)) 2674 return 0; 2675 goto detach; 2676 } 2677 2678 /* NX_DEV_NEED_RESET, this state can be marked in two cases 2679 * 1. Tx timeout 2. Fw hang 2680 * Send request to destroy context in case of tx timeout only 2681 * and doesn't required in case of Fw hang 2682 */ 2683 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) { 2684 adapter->need_fw_reset = 1; 2685 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 2686 goto detach; 2687 } 2688 2689 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 2690 return 0; 2691 2692 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER); 2693 if (heartbit != adapter->heartbit) { 2694 adapter->heartbit = heartbit; 2695 adapter->fw_fail_cnt = 0; 2696 if (adapter->need_fw_reset) 2697 goto detach; 2698 return 0; 2699 } 2700 2701 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH) 2702 return 0; 2703 2704 if (nx_dev_request_reset(adapter)) 2705 return 0; 2706 2707 clear_bit(__NX_FW_ATTACHED, &adapter->state); 2708 2709 dev_err(&netdev->dev, "firmware hang detected\n"); 2710 peg_status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1); 2711 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n" 2712 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n" 2713 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n" 2714 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n" 2715 "PEG_NET_4_PC: 0x%x\n", 2716 peg_status, 2717 NXRD32(adapter, NETXEN_PEG_HALT_STATUS2), 2718 NXRD32(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c), 2719 NXRD32(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c), 2720 NXRD32(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c), 2721 NXRD32(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c), 2722 NXRD32(adapter, NETXEN_CRB_PEG_NET_4 + 0x3c)); 2723 if (NX_FWERROR_PEGSTAT1(peg_status) == 0x67) 2724 dev_err(&adapter->pdev->dev, 2725 "Firmware aborted with error code 0x00006700. " 2726 "Device is being reset.\n"); 2727 detach: 2728 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) && 2729 !test_and_set_bit(__NX_RESETTING, &adapter->state)) 2730 netxen_schedule_work(adapter, netxen_detach_work, 0); 2731 return 1; 2732 } 2733 2734 static void 2735 netxen_fw_poll_work(struct work_struct *work) 2736 { 2737 struct netxen_adapter *adapter = container_of(work, 2738 struct netxen_adapter, fw_work.work); 2739 2740 if (test_bit(__NX_RESETTING, &adapter->state)) 2741 goto reschedule; 2742 2743 if (test_bit(__NX_DEV_UP, &adapter->state)) { 2744 if (!adapter->has_link_events) { 2745 2746 netxen_nic_handle_phy_intr(adapter); 2747 2748 if (adapter->link_changed) 2749 netxen_nic_set_link_parameters(adapter); 2750 } 2751 } 2752 2753 if (netxen_check_health(adapter)) 2754 return; 2755 2756 reschedule: 2757 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 2758 } 2759 2760 static ssize_t 2761 netxen_store_bridged_mode(struct device *dev, 2762 struct device_attribute *attr, const char *buf, size_t len) 2763 { 2764 struct net_device *net = to_net_dev(dev); 2765 struct netxen_adapter *adapter = netdev_priv(net); 2766 unsigned long new; 2767 int ret = -EINVAL; 2768 2769 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG)) 2770 goto err_out; 2771 2772 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 2773 goto err_out; 2774 2775 if (kstrtoul(buf, 2, &new)) 2776 goto err_out; 2777 2778 if (!netxen_config_bridged_mode(adapter, !!new)) 2779 ret = len; 2780 2781 err_out: 2782 return ret; 2783 } 2784 2785 static ssize_t 2786 netxen_show_bridged_mode(struct device *dev, 2787 struct device_attribute *attr, char *buf) 2788 { 2789 struct net_device *net = to_net_dev(dev); 2790 struct netxen_adapter *adapter; 2791 int bridged_mode = 0; 2792 2793 adapter = netdev_priv(net); 2794 2795 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) 2796 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED); 2797 2798 return sprintf(buf, "%d\n", bridged_mode); 2799 } 2800 2801 static struct device_attribute dev_attr_bridged_mode = { 2802 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)}, 2803 .show = netxen_show_bridged_mode, 2804 .store = netxen_store_bridged_mode, 2805 }; 2806 2807 static ssize_t 2808 netxen_store_diag_mode(struct device *dev, 2809 struct device_attribute *attr, const char *buf, size_t len) 2810 { 2811 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2812 unsigned long new; 2813 2814 if (kstrtoul(buf, 2, &new)) 2815 return -EINVAL; 2816 2817 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) 2818 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED; 2819 2820 return len; 2821 } 2822 2823 static ssize_t 2824 netxen_show_diag_mode(struct device *dev, 2825 struct device_attribute *attr, char *buf) 2826 { 2827 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2828 2829 return sprintf(buf, "%d\n", 2830 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)); 2831 } 2832 2833 static struct device_attribute dev_attr_diag_mode = { 2834 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)}, 2835 .show = netxen_show_diag_mode, 2836 .store = netxen_store_diag_mode, 2837 }; 2838 2839 static int 2840 netxen_sysfs_validate_crb(struct netxen_adapter *adapter, 2841 loff_t offset, size_t size) 2842 { 2843 size_t crb_size = 4; 2844 2845 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) 2846 return -EIO; 2847 2848 if (offset < NETXEN_PCI_CRBSPACE) { 2849 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 2850 return -EINVAL; 2851 2852 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, 2853 NETXEN_PCI_CAMQM_2M_END)) 2854 crb_size = 8; 2855 else 2856 return -EINVAL; 2857 } 2858 2859 if ((size != crb_size) || (offset & (crb_size-1))) 2860 return -EINVAL; 2861 2862 return 0; 2863 } 2864 2865 static ssize_t 2866 netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj, 2867 struct bin_attribute *attr, 2868 char *buf, loff_t offset, size_t size) 2869 { 2870 struct device *dev = container_of(kobj, struct device, kobj); 2871 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2872 u32 data; 2873 u64 qmdata; 2874 int ret; 2875 2876 ret = netxen_sysfs_validate_crb(adapter, offset, size); 2877 if (ret != 0) 2878 return ret; 2879 2880 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && 2881 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, 2882 NETXEN_PCI_CAMQM_2M_END)) { 2883 netxen_pci_camqm_read_2M(adapter, offset, &qmdata); 2884 memcpy(buf, &qmdata, size); 2885 } else { 2886 data = NXRD32(adapter, offset); 2887 memcpy(buf, &data, size); 2888 } 2889 2890 return size; 2891 } 2892 2893 static ssize_t 2894 netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj, 2895 struct bin_attribute *attr, 2896 char *buf, loff_t offset, size_t size) 2897 { 2898 struct device *dev = container_of(kobj, struct device, kobj); 2899 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2900 u32 data; 2901 u64 qmdata; 2902 int ret; 2903 2904 ret = netxen_sysfs_validate_crb(adapter, offset, size); 2905 if (ret != 0) 2906 return ret; 2907 2908 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && 2909 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, 2910 NETXEN_PCI_CAMQM_2M_END)) { 2911 memcpy(&qmdata, buf, size); 2912 netxen_pci_camqm_write_2M(adapter, offset, qmdata); 2913 } else { 2914 memcpy(&data, buf, size); 2915 NXWR32(adapter, offset, data); 2916 } 2917 2918 return size; 2919 } 2920 2921 static int 2922 netxen_sysfs_validate_mem(struct netxen_adapter *adapter, 2923 loff_t offset, size_t size) 2924 { 2925 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) 2926 return -EIO; 2927 2928 if ((size != 8) || (offset & 0x7)) 2929 return -EIO; 2930 2931 return 0; 2932 } 2933 2934 static ssize_t 2935 netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj, 2936 struct bin_attribute *attr, 2937 char *buf, loff_t offset, size_t size) 2938 { 2939 struct device *dev = container_of(kobj, struct device, kobj); 2940 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2941 u64 data; 2942 int ret; 2943 2944 ret = netxen_sysfs_validate_mem(adapter, offset, size); 2945 if (ret != 0) 2946 return ret; 2947 2948 if (adapter->pci_mem_read(adapter, offset, &data)) 2949 return -EIO; 2950 2951 memcpy(buf, &data, size); 2952 2953 return size; 2954 } 2955 2956 static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj, 2957 struct bin_attribute *attr, char *buf, 2958 loff_t offset, size_t size) 2959 { 2960 struct device *dev = container_of(kobj, struct device, kobj); 2961 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2962 u64 data; 2963 int ret; 2964 2965 ret = netxen_sysfs_validate_mem(adapter, offset, size); 2966 if (ret != 0) 2967 return ret; 2968 2969 memcpy(&data, buf, size); 2970 2971 if (adapter->pci_mem_write(adapter, offset, data)) 2972 return -EIO; 2973 2974 return size; 2975 } 2976 2977 2978 static struct bin_attribute bin_attr_crb = { 2979 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)}, 2980 .size = 0, 2981 .read = netxen_sysfs_read_crb, 2982 .write = netxen_sysfs_write_crb, 2983 }; 2984 2985 static struct bin_attribute bin_attr_mem = { 2986 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)}, 2987 .size = 0, 2988 .read = netxen_sysfs_read_mem, 2989 .write = netxen_sysfs_write_mem, 2990 }; 2991 2992 static ssize_t 2993 netxen_sysfs_read_dimm(struct file *filp, struct kobject *kobj, 2994 struct bin_attribute *attr, 2995 char *buf, loff_t offset, size_t size) 2996 { 2997 struct device *dev = container_of(kobj, struct device, kobj); 2998 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2999 struct net_device *netdev = adapter->netdev; 3000 struct netxen_dimm_cfg dimm; 3001 u8 dw, rows, cols, banks, ranks; 3002 u32 val; 3003 3004 if (size != sizeof(struct netxen_dimm_cfg)) { 3005 netdev_err(netdev, "Invalid size\n"); 3006 return -1; 3007 } 3008 3009 memset(&dimm, 0, sizeof(struct netxen_dimm_cfg)); 3010 val = NXRD32(adapter, NETXEN_DIMM_CAPABILITY); 3011 3012 /* Checks if DIMM info is valid. */ 3013 if (val & NETXEN_DIMM_VALID_FLAG) { 3014 netdev_err(netdev, "Invalid DIMM flag\n"); 3015 dimm.presence = 0xff; 3016 goto out; 3017 } 3018 3019 rows = NETXEN_DIMM_NUMROWS(val); 3020 cols = NETXEN_DIMM_NUMCOLS(val); 3021 ranks = NETXEN_DIMM_NUMRANKS(val); 3022 banks = NETXEN_DIMM_NUMBANKS(val); 3023 dw = NETXEN_DIMM_DATAWIDTH(val); 3024 3025 dimm.presence = (val & NETXEN_DIMM_PRESENT); 3026 3027 /* Checks if DIMM info is present. */ 3028 if (!dimm.presence) { 3029 netdev_err(netdev, "DIMM not present\n"); 3030 goto out; 3031 } 3032 3033 dimm.dimm_type = NETXEN_DIMM_TYPE(val); 3034 3035 switch (dimm.dimm_type) { 3036 case NETXEN_DIMM_TYPE_RDIMM: 3037 case NETXEN_DIMM_TYPE_UDIMM: 3038 case NETXEN_DIMM_TYPE_SO_DIMM: 3039 case NETXEN_DIMM_TYPE_Micro_DIMM: 3040 case NETXEN_DIMM_TYPE_Mini_RDIMM: 3041 case NETXEN_DIMM_TYPE_Mini_UDIMM: 3042 break; 3043 default: 3044 netdev_err(netdev, "Invalid DIMM type %x\n", dimm.dimm_type); 3045 goto out; 3046 } 3047 3048 if (val & NETXEN_DIMM_MEMTYPE_DDR2_SDRAM) 3049 dimm.mem_type = NETXEN_DIMM_MEM_DDR2_SDRAM; 3050 else 3051 dimm.mem_type = NETXEN_DIMM_MEMTYPE(val); 3052 3053 if (val & NETXEN_DIMM_SIZE) { 3054 dimm.size = NETXEN_DIMM_STD_MEM_SIZE; 3055 goto out; 3056 } 3057 3058 if (!rows) { 3059 netdev_err(netdev, "Invalid no of rows %x\n", rows); 3060 goto out; 3061 } 3062 3063 if (!cols) { 3064 netdev_err(netdev, "Invalid no of columns %x\n", cols); 3065 goto out; 3066 } 3067 3068 if (!banks) { 3069 netdev_err(netdev, "Invalid no of banks %x\n", banks); 3070 goto out; 3071 } 3072 3073 ranks += 1; 3074 3075 switch (dw) { 3076 case 0x0: 3077 dw = 32; 3078 break; 3079 case 0x1: 3080 dw = 33; 3081 break; 3082 case 0x2: 3083 dw = 36; 3084 break; 3085 case 0x3: 3086 dw = 64; 3087 break; 3088 case 0x4: 3089 dw = 72; 3090 break; 3091 case 0x5: 3092 dw = 80; 3093 break; 3094 case 0x6: 3095 dw = 128; 3096 break; 3097 case 0x7: 3098 dw = 144; 3099 break; 3100 default: 3101 netdev_err(netdev, "Invalid data-width %x\n", dw); 3102 goto out; 3103 } 3104 3105 dimm.size = ((1 << rows) * (1 << cols) * dw * banks * ranks) / 8; 3106 /* Size returned in MB. */ 3107 dimm.size = (dimm.size) / 0x100000; 3108 out: 3109 memcpy(buf, &dimm, sizeof(struct netxen_dimm_cfg)); 3110 return sizeof(struct netxen_dimm_cfg); 3111 3112 } 3113 3114 static struct bin_attribute bin_attr_dimm = { 3115 .attr = { .name = "dimm", .mode = (S_IRUGO | S_IWUSR) }, 3116 .size = 0, 3117 .read = netxen_sysfs_read_dimm, 3118 }; 3119 3120 3121 static void 3122 netxen_create_sysfs_entries(struct netxen_adapter *adapter) 3123 { 3124 struct device *dev = &adapter->pdev->dev; 3125 3126 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) { 3127 /* bridged_mode control */ 3128 if (device_create_file(dev, &dev_attr_bridged_mode)) { 3129 dev_warn(dev, 3130 "failed to create bridged_mode sysfs entry\n"); 3131 } 3132 } 3133 } 3134 3135 static void 3136 netxen_remove_sysfs_entries(struct netxen_adapter *adapter) 3137 { 3138 struct device *dev = &adapter->pdev->dev; 3139 3140 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) 3141 device_remove_file(dev, &dev_attr_bridged_mode); 3142 } 3143 3144 static void 3145 netxen_create_diag_entries(struct netxen_adapter *adapter) 3146 { 3147 struct pci_dev *pdev = adapter->pdev; 3148 struct device *dev; 3149 3150 dev = &pdev->dev; 3151 if (device_create_file(dev, &dev_attr_diag_mode)) 3152 dev_info(dev, "failed to create diag_mode sysfs entry\n"); 3153 if (device_create_bin_file(dev, &bin_attr_crb)) 3154 dev_info(dev, "failed to create crb sysfs entry\n"); 3155 if (device_create_bin_file(dev, &bin_attr_mem)) 3156 dev_info(dev, "failed to create mem sysfs entry\n"); 3157 if (device_create_bin_file(dev, &bin_attr_dimm)) 3158 dev_info(dev, "failed to create dimm sysfs entry\n"); 3159 } 3160 3161 3162 static void 3163 netxen_remove_diag_entries(struct netxen_adapter *adapter) 3164 { 3165 struct pci_dev *pdev = adapter->pdev; 3166 struct device *dev = &pdev->dev; 3167 3168 device_remove_file(dev, &dev_attr_diag_mode); 3169 device_remove_bin_file(dev, &bin_attr_crb); 3170 device_remove_bin_file(dev, &bin_attr_mem); 3171 device_remove_bin_file(dev, &bin_attr_dimm); 3172 } 3173 3174 #ifdef CONFIG_INET 3175 3176 #define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops) 3177 3178 static int 3179 netxen_destip_supported(struct netxen_adapter *adapter) 3180 { 3181 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 3182 return 0; 3183 3184 if (adapter->ahw.cut_through) 3185 return 0; 3186 3187 return 1; 3188 } 3189 3190 static void 3191 netxen_free_ip_list(struct netxen_adapter *adapter, bool master) 3192 { 3193 struct nx_ip_list *cur, *tmp_cur; 3194 3195 list_for_each_entry_safe(cur, tmp_cur, &adapter->ip_list, list) { 3196 if (master) { 3197 if (cur->master) { 3198 netxen_config_ipaddr(adapter, cur->ip_addr, 3199 NX_IP_DOWN); 3200 list_del(&cur->list); 3201 kfree(cur); 3202 } 3203 } else { 3204 netxen_config_ipaddr(adapter, cur->ip_addr, NX_IP_DOWN); 3205 list_del(&cur->list); 3206 kfree(cur); 3207 } 3208 } 3209 } 3210 3211 static bool 3212 netxen_list_config_ip(struct netxen_adapter *adapter, 3213 struct in_ifaddr *ifa, unsigned long event) 3214 { 3215 struct net_device *dev; 3216 struct nx_ip_list *cur, *tmp_cur; 3217 struct list_head *head; 3218 bool ret = false; 3219 3220 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL; 3221 3222 if (dev == NULL) 3223 goto out; 3224 3225 switch (event) { 3226 case NX_IP_UP: 3227 list_for_each(head, &adapter->ip_list) { 3228 cur = list_entry(head, struct nx_ip_list, list); 3229 3230 if (cur->ip_addr == ifa->ifa_address) 3231 goto out; 3232 } 3233 3234 cur = kzalloc(sizeof(struct nx_ip_list), GFP_ATOMIC); 3235 if (cur == NULL) 3236 goto out; 3237 if (dev->priv_flags & IFF_802_1Q_VLAN) 3238 dev = vlan_dev_real_dev(dev); 3239 cur->master = !!netif_is_bond_master(dev); 3240 cur->ip_addr = ifa->ifa_address; 3241 list_add_tail(&cur->list, &adapter->ip_list); 3242 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP); 3243 ret = true; 3244 break; 3245 case NX_IP_DOWN: 3246 list_for_each_entry_safe(cur, tmp_cur, 3247 &adapter->ip_list, list) { 3248 if (cur->ip_addr == ifa->ifa_address) { 3249 list_del(&cur->list); 3250 kfree(cur); 3251 netxen_config_ipaddr(adapter, ifa->ifa_address, 3252 NX_IP_DOWN); 3253 ret = true; 3254 break; 3255 } 3256 } 3257 } 3258 out: 3259 return ret; 3260 } 3261 3262 static void 3263 netxen_config_indev_addr(struct netxen_adapter *adapter, 3264 struct net_device *dev, unsigned long event) 3265 { 3266 struct in_device *indev; 3267 3268 if (!netxen_destip_supported(adapter)) 3269 return; 3270 3271 indev = in_dev_get(dev); 3272 if (!indev) 3273 return; 3274 3275 for_ifa(indev) { 3276 switch (event) { 3277 case NETDEV_UP: 3278 netxen_list_config_ip(adapter, ifa, NX_IP_UP); 3279 break; 3280 case NETDEV_DOWN: 3281 netxen_list_config_ip(adapter, ifa, NX_IP_DOWN); 3282 break; 3283 default: 3284 break; 3285 } 3286 } endfor_ifa(indev); 3287 3288 in_dev_put(indev); 3289 } 3290 3291 static void 3292 netxen_restore_indev_addr(struct net_device *netdev, unsigned long event) 3293 3294 { 3295 struct netxen_adapter *adapter = netdev_priv(netdev); 3296 struct nx_ip_list *pos, *tmp_pos; 3297 unsigned long ip_event; 3298 3299 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN; 3300 netxen_config_indev_addr(adapter, netdev, event); 3301 3302 list_for_each_entry_safe(pos, tmp_pos, &adapter->ip_list, list) { 3303 netxen_config_ipaddr(adapter, pos->ip_addr, ip_event); 3304 } 3305 } 3306 3307 static inline bool 3308 netxen_config_checkdev(struct net_device *dev) 3309 { 3310 struct netxen_adapter *adapter; 3311 3312 if (!is_netxen_netdev(dev)) 3313 return false; 3314 adapter = netdev_priv(dev); 3315 if (!adapter) 3316 return false; 3317 if (!netxen_destip_supported(adapter)) 3318 return false; 3319 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 3320 return false; 3321 3322 return true; 3323 } 3324 3325 /** 3326 * netxen_config_master - configure addresses based on master 3327 * @dev: netxen device 3328 * @event: netdev event 3329 */ 3330 static void netxen_config_master(struct net_device *dev, unsigned long event) 3331 { 3332 struct net_device *master, *slave; 3333 struct netxen_adapter *adapter = netdev_priv(dev); 3334 3335 rcu_read_lock(); 3336 master = netdev_master_upper_dev_get_rcu(dev); 3337 /* 3338 * This is the case where the netxen nic is being 3339 * enslaved and is dev_open()ed in bond_enslave() 3340 * Now we should program the bond's (and its vlans') 3341 * addresses in the netxen NIC. 3342 */ 3343 if (master && netif_is_bond_master(master) && 3344 !netif_is_bond_slave(dev)) { 3345 netxen_config_indev_addr(adapter, master, event); 3346 for_each_netdev_rcu(&init_net, slave) 3347 if (slave->priv_flags & IFF_802_1Q_VLAN && 3348 vlan_dev_real_dev(slave) == master) 3349 netxen_config_indev_addr(adapter, slave, event); 3350 } 3351 rcu_read_unlock(); 3352 /* 3353 * This is the case where the netxen nic is being 3354 * released and is dev_close()ed in bond_release() 3355 * just before IFF_BONDING is stripped. 3356 */ 3357 if (!master && dev->priv_flags & IFF_BONDING) 3358 netxen_free_ip_list(adapter, true); 3359 } 3360 3361 static int netxen_netdev_event(struct notifier_block *this, 3362 unsigned long event, void *ptr) 3363 { 3364 struct netxen_adapter *adapter; 3365 struct net_device *dev = netdev_notifier_info_to_dev(ptr); 3366 struct net_device *orig_dev = dev; 3367 struct net_device *slave; 3368 3369 recheck: 3370 if (dev == NULL) 3371 goto done; 3372 3373 if (dev->priv_flags & IFF_802_1Q_VLAN) { 3374 dev = vlan_dev_real_dev(dev); 3375 goto recheck; 3376 } 3377 if (event == NETDEV_UP || event == NETDEV_DOWN) { 3378 /* If this is a bonding device, look for netxen-based slaves*/ 3379 if (netif_is_bond_master(dev)) { 3380 rcu_read_lock(); 3381 for_each_netdev_in_bond_rcu(dev, slave) { 3382 if (!netxen_config_checkdev(slave)) 3383 continue; 3384 adapter = netdev_priv(slave); 3385 netxen_config_indev_addr(adapter, 3386 orig_dev, event); 3387 } 3388 rcu_read_unlock(); 3389 } else { 3390 if (!netxen_config_checkdev(dev)) 3391 goto done; 3392 adapter = netdev_priv(dev); 3393 /* Act only if the actual netxen is the target */ 3394 if (orig_dev == dev) 3395 netxen_config_master(dev, event); 3396 netxen_config_indev_addr(adapter, orig_dev, event); 3397 } 3398 } 3399 done: 3400 return NOTIFY_DONE; 3401 } 3402 3403 static int 3404 netxen_inetaddr_event(struct notifier_block *this, 3405 unsigned long event, void *ptr) 3406 { 3407 struct netxen_adapter *adapter; 3408 struct net_device *dev, *slave; 3409 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr; 3410 unsigned long ip_event; 3411 3412 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL; 3413 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN; 3414 recheck: 3415 if (dev == NULL) 3416 goto done; 3417 3418 if (dev->priv_flags & IFF_802_1Q_VLAN) { 3419 dev = vlan_dev_real_dev(dev); 3420 goto recheck; 3421 } 3422 if (event == NETDEV_UP || event == NETDEV_DOWN) { 3423 /* If this is a bonding device, look for netxen-based slaves*/ 3424 if (netif_is_bond_master(dev)) { 3425 rcu_read_lock(); 3426 for_each_netdev_in_bond_rcu(dev, slave) { 3427 if (!netxen_config_checkdev(slave)) 3428 continue; 3429 adapter = netdev_priv(slave); 3430 netxen_list_config_ip(adapter, ifa, ip_event); 3431 } 3432 rcu_read_unlock(); 3433 } else { 3434 if (!netxen_config_checkdev(dev)) 3435 goto done; 3436 adapter = netdev_priv(dev); 3437 netxen_list_config_ip(adapter, ifa, ip_event); 3438 } 3439 } 3440 done: 3441 return NOTIFY_DONE; 3442 } 3443 3444 static struct notifier_block netxen_netdev_cb = { 3445 .notifier_call = netxen_netdev_event, 3446 }; 3447 3448 static struct notifier_block netxen_inetaddr_cb = { 3449 .notifier_call = netxen_inetaddr_event, 3450 }; 3451 #else 3452 static void 3453 netxen_restore_indev_addr(struct net_device *dev, unsigned long event) 3454 { } 3455 static void 3456 netxen_free_ip_list(struct netxen_adapter *adapter, bool master) 3457 { } 3458 #endif 3459 3460 static const struct pci_error_handlers netxen_err_handler = { 3461 .error_detected = netxen_io_error_detected, 3462 .slot_reset = netxen_io_slot_reset, 3463 .resume = netxen_io_resume, 3464 }; 3465 3466 static struct pci_driver netxen_driver = { 3467 .name = netxen_nic_driver_name, 3468 .id_table = netxen_pci_tbl, 3469 .probe = netxen_nic_probe, 3470 .remove = netxen_nic_remove, 3471 #ifdef CONFIG_PM 3472 .suspend = netxen_nic_suspend, 3473 .resume = netxen_nic_resume, 3474 #endif 3475 .shutdown = netxen_nic_shutdown, 3476 .err_handler = &netxen_err_handler 3477 }; 3478 3479 static int __init netxen_init_module(void) 3480 { 3481 printk(KERN_INFO "%s\n", netxen_nic_driver_string); 3482 3483 #ifdef CONFIG_INET 3484 register_netdevice_notifier(&netxen_netdev_cb); 3485 register_inetaddr_notifier(&netxen_inetaddr_cb); 3486 #endif 3487 return pci_register_driver(&netxen_driver); 3488 } 3489 3490 module_init(netxen_init_module); 3491 3492 static void __exit netxen_exit_module(void) 3493 { 3494 pci_unregister_driver(&netxen_driver); 3495 3496 #ifdef CONFIG_INET 3497 unregister_inetaddr_notifier(&netxen_inetaddr_cb); 3498 unregister_netdevice_notifier(&netxen_netdev_cb); 3499 #endif 3500 } 3501 3502 module_exit(netxen_exit_module); 3503