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 #define NETXEN_ULA_ADAPTER_KEY (0xdaddad01) 1419 #define NETXEN_NON_ULA_ADAPTER_KEY (0xdaddad00) 1420 1421 static void netxen_read_ula_info(struct netxen_adapter *adapter) 1422 { 1423 u32 temp; 1424 1425 /* Print ULA info only once for an adapter */ 1426 if (adapter->portnum != 0) 1427 return; 1428 1429 temp = NXRD32(adapter, NETXEN_ULA_KEY); 1430 switch (temp) { 1431 case NETXEN_ULA_ADAPTER_KEY: 1432 dev_info(&adapter->pdev->dev, "ULA adapter"); 1433 break; 1434 case NETXEN_NON_ULA_ADAPTER_KEY: 1435 dev_info(&adapter->pdev->dev, "non ULA adapter"); 1436 break; 1437 default: 1438 break; 1439 } 1440 1441 return; 1442 } 1443 1444 #ifdef CONFIG_PCIEAER 1445 static void netxen_mask_aer_correctable(struct netxen_adapter *adapter) 1446 { 1447 struct pci_dev *pdev = adapter->pdev; 1448 struct pci_dev *root = pdev->bus->self; 1449 u32 aer_pos; 1450 1451 /* root bus? */ 1452 if (!root) 1453 return; 1454 1455 if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM && 1456 adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP) 1457 return; 1458 1459 if (pci_pcie_type(root) != PCI_EXP_TYPE_ROOT_PORT) 1460 return; 1461 1462 aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR); 1463 if (!aer_pos) 1464 return; 1465 1466 pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff); 1467 } 1468 #endif 1469 1470 static int 1471 netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 1472 { 1473 struct net_device *netdev = NULL; 1474 struct netxen_adapter *adapter = NULL; 1475 int i = 0, err; 1476 int pci_func_id = PCI_FUNC(pdev->devfn); 1477 uint8_t revision_id; 1478 u32 val; 1479 1480 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) { 1481 pr_warning("%s: chip revisions between 0x%x-0x%x " 1482 "will not be enabled.\n", 1483 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1); 1484 return -ENODEV; 1485 } 1486 1487 if ((err = pci_enable_device(pdev))) 1488 return err; 1489 1490 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { 1491 err = -ENODEV; 1492 goto err_out_disable_pdev; 1493 } 1494 1495 if ((err = pci_request_regions(pdev, netxen_nic_driver_name))) 1496 goto err_out_disable_pdev; 1497 1498 if (NX_IS_REVISION_P3(pdev->revision)) 1499 pci_enable_pcie_error_reporting(pdev); 1500 1501 pci_set_master(pdev); 1502 1503 netdev = alloc_etherdev(sizeof(struct netxen_adapter)); 1504 if(!netdev) { 1505 err = -ENOMEM; 1506 goto err_out_free_res; 1507 } 1508 1509 SET_NETDEV_DEV(netdev, &pdev->dev); 1510 1511 adapter = netdev_priv(netdev); 1512 adapter->netdev = netdev; 1513 adapter->pdev = pdev; 1514 adapter->ahw.pci_func = pci_func_id; 1515 1516 revision_id = pdev->revision; 1517 adapter->ahw.revision_id = revision_id; 1518 1519 rwlock_init(&adapter->ahw.crb_lock); 1520 spin_lock_init(&adapter->ahw.mem_lock); 1521 1522 spin_lock_init(&adapter->tx_clean_lock); 1523 INIT_LIST_HEAD(&adapter->mac_list); 1524 INIT_LIST_HEAD(&adapter->ip_list); 1525 1526 err = netxen_setup_pci_map(adapter); 1527 if (err) 1528 goto err_out_free_netdev; 1529 1530 /* This will be reset for mezz cards */ 1531 adapter->portnum = pci_func_id; 1532 1533 err = netxen_nic_get_board_info(adapter); 1534 if (err) { 1535 dev_err(&pdev->dev, "Error getting board config info.\n"); 1536 goto err_out_iounmap; 1537 } 1538 1539 #ifdef CONFIG_PCIEAER 1540 netxen_mask_aer_correctable(adapter); 1541 #endif 1542 1543 /* Mezz cards have PCI function 0,2,3 enabled */ 1544 switch (adapter->ahw.board_type) { 1545 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ: 1546 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ: 1547 if (pci_func_id >= 2) 1548 adapter->portnum = pci_func_id - 2; 1549 break; 1550 default: 1551 break; 1552 } 1553 1554 err = netxen_check_flash_fw_compatibility(adapter); 1555 if (err) 1556 goto err_out_iounmap; 1557 1558 if (adapter->portnum == 0) { 1559 val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 1560 if (val != 0xffffffff && val != 0) { 1561 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0); 1562 adapter->need_fw_reset = 1; 1563 } 1564 } 1565 1566 err = netxen_start_firmware(adapter); 1567 if (err) 1568 goto err_out_decr_ref; 1569 1570 /* 1571 * See if the firmware gave us a virtual-physical port mapping. 1572 */ 1573 adapter->physical_port = adapter->portnum; 1574 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 1575 i = NXRD32(adapter, CRB_V2P(adapter->portnum)); 1576 if (i != 0x55555555) 1577 adapter->physical_port = i; 1578 } 1579 1580 netxen_nic_clear_stats(adapter); 1581 1582 err = netxen_setup_intr(adapter); 1583 1584 if (err) { 1585 dev_err(&adapter->pdev->dev, 1586 "Failed to setup interrupts, error = %d\n", err); 1587 goto err_out_disable_msi; 1588 } 1589 1590 netxen_read_ula_info(adapter); 1591 1592 err = netxen_setup_netdev(adapter, netdev); 1593 if (err) 1594 goto err_out_disable_msi; 1595 1596 pci_set_drvdata(pdev, adapter); 1597 1598 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 1599 1600 switch (adapter->ahw.port_type) { 1601 case NETXEN_NIC_GBE: 1602 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n", 1603 adapter->netdev->name); 1604 break; 1605 case NETXEN_NIC_XGBE: 1606 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n", 1607 adapter->netdev->name); 1608 break; 1609 } 1610 1611 netxen_create_diag_entries(adapter); 1612 1613 return 0; 1614 1615 err_out_disable_msi: 1616 netxen_teardown_intr(adapter); 1617 1618 netxen_free_dummy_dma(adapter); 1619 1620 err_out_decr_ref: 1621 nx_decr_dev_ref_cnt(adapter); 1622 1623 err_out_iounmap: 1624 netxen_cleanup_pci_map(adapter); 1625 1626 err_out_free_netdev: 1627 free_netdev(netdev); 1628 1629 err_out_free_res: 1630 pci_release_regions(pdev); 1631 1632 err_out_disable_pdev: 1633 pci_disable_device(pdev); 1634 return err; 1635 } 1636 1637 static 1638 void netxen_cleanup_minidump(struct netxen_adapter *adapter) 1639 { 1640 kfree(adapter->mdump.md_template); 1641 adapter->mdump.md_template = NULL; 1642 1643 if (adapter->mdump.md_capture_buff) { 1644 vfree(adapter->mdump.md_capture_buff); 1645 adapter->mdump.md_capture_buff = NULL; 1646 } 1647 } 1648 1649 static void netxen_nic_remove(struct pci_dev *pdev) 1650 { 1651 struct netxen_adapter *adapter; 1652 struct net_device *netdev; 1653 1654 adapter = pci_get_drvdata(pdev); 1655 if (adapter == NULL) 1656 return; 1657 1658 netdev = adapter->netdev; 1659 1660 netxen_cancel_fw_work(adapter); 1661 1662 unregister_netdev(netdev); 1663 1664 cancel_work_sync(&adapter->tx_timeout_task); 1665 1666 netxen_free_ip_list(adapter, false); 1667 netxen_nic_detach(adapter); 1668 1669 nx_decr_dev_ref_cnt(adapter); 1670 1671 if (adapter->portnum == 0) 1672 netxen_free_dummy_dma(adapter); 1673 1674 clear_bit(__NX_RESETTING, &adapter->state); 1675 1676 netxen_teardown_intr(adapter); 1677 netxen_set_interrupt_mode(adapter, 0); 1678 netxen_remove_diag_entries(adapter); 1679 1680 netxen_cleanup_pci_map(adapter); 1681 1682 netxen_release_firmware(adapter); 1683 1684 if (NX_IS_REVISION_P3(pdev->revision)) { 1685 netxen_cleanup_minidump(adapter); 1686 pci_disable_pcie_error_reporting(pdev); 1687 } 1688 1689 pci_release_regions(pdev); 1690 pci_disable_device(pdev); 1691 1692 free_netdev(netdev); 1693 } 1694 1695 static void netxen_nic_detach_func(struct netxen_adapter *adapter) 1696 { 1697 struct net_device *netdev = adapter->netdev; 1698 1699 netif_device_detach(netdev); 1700 1701 netxen_cancel_fw_work(adapter); 1702 1703 if (netif_running(netdev)) 1704 netxen_nic_down(adapter, netdev); 1705 1706 cancel_work_sync(&adapter->tx_timeout_task); 1707 1708 netxen_nic_detach(adapter); 1709 1710 if (adapter->portnum == 0) 1711 netxen_free_dummy_dma(adapter); 1712 1713 nx_decr_dev_ref_cnt(adapter); 1714 1715 clear_bit(__NX_RESETTING, &adapter->state); 1716 } 1717 1718 static int netxen_nic_attach_func(struct pci_dev *pdev) 1719 { 1720 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1721 struct net_device *netdev = adapter->netdev; 1722 int err; 1723 1724 err = pci_enable_device(pdev); 1725 if (err) 1726 return err; 1727 1728 pci_set_power_state(pdev, PCI_D0); 1729 pci_set_master(pdev); 1730 pci_restore_state(pdev); 1731 1732 adapter->ahw.crb_win = -1; 1733 adapter->ahw.ocm_win = -1; 1734 1735 err = netxen_start_firmware(adapter); 1736 if (err) { 1737 dev_err(&pdev->dev, "failed to start firmware\n"); 1738 return err; 1739 } 1740 1741 if (netif_running(netdev)) { 1742 err = netxen_nic_attach(adapter); 1743 if (err) 1744 goto err_out; 1745 1746 err = netxen_nic_up(adapter, netdev); 1747 if (err) 1748 goto err_out_detach; 1749 1750 netxen_restore_indev_addr(netdev, NETDEV_UP); 1751 } 1752 1753 netif_device_attach(netdev); 1754 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 1755 return 0; 1756 1757 err_out_detach: 1758 netxen_nic_detach(adapter); 1759 err_out: 1760 nx_decr_dev_ref_cnt(adapter); 1761 return err; 1762 } 1763 1764 static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev, 1765 pci_channel_state_t state) 1766 { 1767 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1768 1769 if (state == pci_channel_io_perm_failure) 1770 return PCI_ERS_RESULT_DISCONNECT; 1771 1772 if (nx_dev_request_aer(adapter)) 1773 return PCI_ERS_RESULT_RECOVERED; 1774 1775 netxen_nic_detach_func(adapter); 1776 1777 pci_disable_device(pdev); 1778 1779 return PCI_ERS_RESULT_NEED_RESET; 1780 } 1781 1782 static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev) 1783 { 1784 int err = 0; 1785 1786 err = netxen_nic_attach_func(pdev); 1787 1788 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED; 1789 } 1790 1791 static void netxen_io_resume(struct pci_dev *pdev) 1792 { 1793 pci_cleanup_aer_uncorrect_error_status(pdev); 1794 } 1795 1796 static void netxen_nic_shutdown(struct pci_dev *pdev) 1797 { 1798 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1799 1800 netxen_nic_detach_func(adapter); 1801 1802 if (pci_save_state(pdev)) 1803 return; 1804 1805 if (netxen_nic_wol_supported(adapter)) { 1806 pci_enable_wake(pdev, PCI_D3cold, 1); 1807 pci_enable_wake(pdev, PCI_D3hot, 1); 1808 } 1809 1810 pci_disable_device(pdev); 1811 } 1812 1813 #ifdef CONFIG_PM 1814 static int 1815 netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state) 1816 { 1817 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1818 int retval; 1819 1820 netxen_nic_detach_func(adapter); 1821 1822 retval = pci_save_state(pdev); 1823 if (retval) 1824 return retval; 1825 1826 if (netxen_nic_wol_supported(adapter)) { 1827 pci_enable_wake(pdev, PCI_D3cold, 1); 1828 pci_enable_wake(pdev, PCI_D3hot, 1); 1829 } 1830 1831 pci_disable_device(pdev); 1832 pci_set_power_state(pdev, pci_choose_state(pdev, state)); 1833 1834 return 0; 1835 } 1836 1837 static int 1838 netxen_nic_resume(struct pci_dev *pdev) 1839 { 1840 return netxen_nic_attach_func(pdev); 1841 } 1842 #endif 1843 1844 static int netxen_nic_open(struct net_device *netdev) 1845 { 1846 struct netxen_adapter *adapter = netdev_priv(netdev); 1847 int err = 0; 1848 1849 if (adapter->driver_mismatch) 1850 return -EIO; 1851 1852 err = netxen_nic_attach(adapter); 1853 if (err) 1854 return err; 1855 1856 err = __netxen_nic_up(adapter, netdev); 1857 if (err) 1858 goto err_out; 1859 1860 netif_start_queue(netdev); 1861 1862 return 0; 1863 1864 err_out: 1865 netxen_nic_detach(adapter); 1866 return err; 1867 } 1868 1869 /* 1870 * netxen_nic_close - Disables a network interface entry point 1871 */ 1872 static int netxen_nic_close(struct net_device *netdev) 1873 { 1874 struct netxen_adapter *adapter = netdev_priv(netdev); 1875 1876 __netxen_nic_down(adapter, netdev); 1877 return 0; 1878 } 1879 1880 static void 1881 netxen_tso_check(struct net_device *netdev, 1882 struct nx_host_tx_ring *tx_ring, 1883 struct cmd_desc_type0 *first_desc, 1884 struct sk_buff *skb) 1885 { 1886 u8 opcode = TX_ETHER_PKT; 1887 __be16 protocol = skb->protocol; 1888 u16 flags = 0, vid = 0; 1889 u32 producer; 1890 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0; 1891 struct cmd_desc_type0 *hwdesc; 1892 struct vlan_ethhdr *vh; 1893 1894 if (protocol == cpu_to_be16(ETH_P_8021Q)) { 1895 1896 vh = (struct vlan_ethhdr *)skb->data; 1897 protocol = vh->h_vlan_encapsulated_proto; 1898 flags = FLAGS_VLAN_TAGGED; 1899 1900 } else if (vlan_tx_tag_present(skb)) { 1901 flags = FLAGS_VLAN_OOB; 1902 vid = vlan_tx_tag_get(skb); 1903 netxen_set_tx_vlan_tci(first_desc, vid); 1904 vlan_oob = 1; 1905 } 1906 1907 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) && 1908 skb_shinfo(skb)->gso_size > 0) { 1909 1910 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); 1911 1912 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); 1913 first_desc->total_hdr_length = hdr_len; 1914 if (vlan_oob) { 1915 first_desc->total_hdr_length += VLAN_HLEN; 1916 first_desc->tcp_hdr_offset = VLAN_HLEN; 1917 first_desc->ip_hdr_offset = VLAN_HLEN; 1918 /* Only in case of TSO on vlan device */ 1919 flags |= FLAGS_VLAN_TAGGED; 1920 } 1921 1922 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ? 1923 TX_TCP_LSO6 : TX_TCP_LSO; 1924 tso = 1; 1925 1926 } else if (skb->ip_summed == CHECKSUM_PARTIAL) { 1927 u8 l4proto; 1928 1929 if (protocol == cpu_to_be16(ETH_P_IP)) { 1930 l4proto = ip_hdr(skb)->protocol; 1931 1932 if (l4proto == IPPROTO_TCP) 1933 opcode = TX_TCP_PKT; 1934 else if(l4proto == IPPROTO_UDP) 1935 opcode = TX_UDP_PKT; 1936 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) { 1937 l4proto = ipv6_hdr(skb)->nexthdr; 1938 1939 if (l4proto == IPPROTO_TCP) 1940 opcode = TX_TCPV6_PKT; 1941 else if(l4proto == IPPROTO_UDP) 1942 opcode = TX_UDPV6_PKT; 1943 } 1944 } 1945 1946 first_desc->tcp_hdr_offset += skb_transport_offset(skb); 1947 first_desc->ip_hdr_offset += skb_network_offset(skb); 1948 netxen_set_tx_flags_opcode(first_desc, flags, opcode); 1949 1950 if (!tso) 1951 return; 1952 1953 /* For LSO, we need to copy the MAC/IP/TCP headers into 1954 * the descriptor ring 1955 */ 1956 producer = tx_ring->producer; 1957 copied = 0; 1958 offset = 2; 1959 1960 if (vlan_oob) { 1961 /* Create a TSO vlan header template for firmware */ 1962 1963 hwdesc = &tx_ring->desc_head[producer]; 1964 tx_ring->cmd_buf_arr[producer].skb = NULL; 1965 1966 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset, 1967 hdr_len + VLAN_HLEN); 1968 1969 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2); 1970 skb_copy_from_linear_data(skb, vh, 12); 1971 vh->h_vlan_proto = htons(ETH_P_8021Q); 1972 vh->h_vlan_TCI = htons(vid); 1973 skb_copy_from_linear_data_offset(skb, 12, 1974 (char *)vh + 16, copy_len - 16); 1975 1976 copied = copy_len - VLAN_HLEN; 1977 offset = 0; 1978 1979 producer = get_next_index(producer, tx_ring->num_desc); 1980 } 1981 1982 while (copied < hdr_len) { 1983 1984 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset, 1985 (hdr_len - copied)); 1986 1987 hwdesc = &tx_ring->desc_head[producer]; 1988 tx_ring->cmd_buf_arr[producer].skb = NULL; 1989 1990 skb_copy_from_linear_data_offset(skb, copied, 1991 (char *)hwdesc + offset, copy_len); 1992 1993 copied += copy_len; 1994 offset = 0; 1995 1996 producer = get_next_index(producer, tx_ring->num_desc); 1997 } 1998 1999 tx_ring->producer = producer; 2000 barrier(); 2001 } 2002 2003 static int 2004 netxen_map_tx_skb(struct pci_dev *pdev, 2005 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf) 2006 { 2007 struct netxen_skb_frag *nf; 2008 struct skb_frag_struct *frag; 2009 int i, nr_frags; 2010 dma_addr_t map; 2011 2012 nr_frags = skb_shinfo(skb)->nr_frags; 2013 nf = &pbuf->frag_array[0]; 2014 2015 map = pci_map_single(pdev, skb->data, 2016 skb_headlen(skb), PCI_DMA_TODEVICE); 2017 if (pci_dma_mapping_error(pdev, map)) 2018 goto out_err; 2019 2020 nf->dma = map; 2021 nf->length = skb_headlen(skb); 2022 2023 for (i = 0; i < nr_frags; i++) { 2024 frag = &skb_shinfo(skb)->frags[i]; 2025 nf = &pbuf->frag_array[i+1]; 2026 2027 map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag), 2028 DMA_TO_DEVICE); 2029 if (dma_mapping_error(&pdev->dev, map)) 2030 goto unwind; 2031 2032 nf->dma = map; 2033 nf->length = skb_frag_size(frag); 2034 } 2035 2036 return 0; 2037 2038 unwind: 2039 while (--i >= 0) { 2040 nf = &pbuf->frag_array[i+1]; 2041 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE); 2042 nf->dma = 0ULL; 2043 } 2044 2045 nf = &pbuf->frag_array[0]; 2046 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE); 2047 nf->dma = 0ULL; 2048 2049 out_err: 2050 return -ENOMEM; 2051 } 2052 2053 static inline void 2054 netxen_clear_cmddesc(u64 *desc) 2055 { 2056 desc[0] = 0ULL; 2057 desc[2] = 0ULL; 2058 } 2059 2060 static netdev_tx_t 2061 netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) 2062 { 2063 struct netxen_adapter *adapter = netdev_priv(netdev); 2064 struct nx_host_tx_ring *tx_ring = adapter->tx_ring; 2065 struct netxen_cmd_buffer *pbuf; 2066 struct netxen_skb_frag *buffrag; 2067 struct cmd_desc_type0 *hwdesc, *first_desc; 2068 struct pci_dev *pdev; 2069 int i, k; 2070 int delta = 0; 2071 struct skb_frag_struct *frag; 2072 2073 u32 producer; 2074 int frag_count, no_of_desc; 2075 u32 num_txd = tx_ring->num_desc; 2076 2077 frag_count = skb_shinfo(skb)->nr_frags + 1; 2078 2079 /* 14 frags supported for normal packet and 2080 * 32 frags supported for TSO packet 2081 */ 2082 if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) { 2083 2084 for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) { 2085 frag = &skb_shinfo(skb)->frags[i]; 2086 delta += skb_frag_size(frag); 2087 } 2088 2089 if (!__pskb_pull_tail(skb, delta)) 2090 goto drop_packet; 2091 2092 frag_count = 1 + skb_shinfo(skb)->nr_frags; 2093 } 2094 /* 4 fragments per cmd des */ 2095 no_of_desc = (frag_count + 3) >> 2; 2096 2097 if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) { 2098 netif_stop_queue(netdev); 2099 smp_mb(); 2100 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH) 2101 netif_start_queue(netdev); 2102 else 2103 return NETDEV_TX_BUSY; 2104 } 2105 2106 producer = tx_ring->producer; 2107 pbuf = &tx_ring->cmd_buf_arr[producer]; 2108 2109 pdev = adapter->pdev; 2110 2111 if (netxen_map_tx_skb(pdev, skb, pbuf)) 2112 goto drop_packet; 2113 2114 pbuf->skb = skb; 2115 pbuf->frag_count = frag_count; 2116 2117 first_desc = hwdesc = &tx_ring->desc_head[producer]; 2118 netxen_clear_cmddesc((u64 *)hwdesc); 2119 2120 netxen_set_tx_frags_len(first_desc, frag_count, skb->len); 2121 netxen_set_tx_port(first_desc, adapter->portnum); 2122 2123 for (i = 0; i < frag_count; i++) { 2124 2125 k = i % 4; 2126 2127 if ((k == 0) && (i > 0)) { 2128 /* move to next desc.*/ 2129 producer = get_next_index(producer, num_txd); 2130 hwdesc = &tx_ring->desc_head[producer]; 2131 netxen_clear_cmddesc((u64 *)hwdesc); 2132 tx_ring->cmd_buf_arr[producer].skb = NULL; 2133 } 2134 2135 buffrag = &pbuf->frag_array[i]; 2136 2137 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length); 2138 switch (k) { 2139 case 0: 2140 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma); 2141 break; 2142 case 1: 2143 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma); 2144 break; 2145 case 2: 2146 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma); 2147 break; 2148 case 3: 2149 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma); 2150 break; 2151 } 2152 } 2153 2154 tx_ring->producer = get_next_index(producer, num_txd); 2155 2156 netxen_tso_check(netdev, tx_ring, first_desc, skb); 2157 2158 adapter->stats.txbytes += skb->len; 2159 adapter->stats.xmitcalled++; 2160 2161 netxen_nic_update_cmd_producer(adapter, tx_ring); 2162 2163 return NETDEV_TX_OK; 2164 2165 drop_packet: 2166 adapter->stats.txdropped++; 2167 dev_kfree_skb_any(skb); 2168 return NETDEV_TX_OK; 2169 } 2170 2171 static int netxen_nic_check_temp(struct netxen_adapter *adapter) 2172 { 2173 struct net_device *netdev = adapter->netdev; 2174 uint32_t temp, temp_state, temp_val; 2175 int rv = 0; 2176 2177 temp = NXRD32(adapter, CRB_TEMP_STATE); 2178 2179 temp_state = nx_get_temp_state(temp); 2180 temp_val = nx_get_temp_val(temp); 2181 2182 if (temp_state == NX_TEMP_PANIC) { 2183 printk(KERN_ALERT 2184 "%s: Device temperature %d degrees C exceeds" 2185 " maximum allowed. Hardware has been shut down.\n", 2186 netdev->name, temp_val); 2187 rv = 1; 2188 } else if (temp_state == NX_TEMP_WARN) { 2189 if (adapter->temp == NX_TEMP_NORMAL) { 2190 printk(KERN_ALERT 2191 "%s: Device temperature %d degrees C " 2192 "exceeds operating range." 2193 " Immediate action needed.\n", 2194 netdev->name, temp_val); 2195 } 2196 } else { 2197 if (adapter->temp == NX_TEMP_WARN) { 2198 printk(KERN_INFO 2199 "%s: Device temperature is now %d degrees C" 2200 " in normal range.\n", netdev->name, 2201 temp_val); 2202 } 2203 } 2204 adapter->temp = temp_state; 2205 return rv; 2206 } 2207 2208 void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup) 2209 { 2210 struct net_device *netdev = adapter->netdev; 2211 2212 if (adapter->ahw.linkup && !linkup) { 2213 printk(KERN_INFO "%s: %s NIC Link is down\n", 2214 netxen_nic_driver_name, netdev->name); 2215 adapter->ahw.linkup = 0; 2216 if (netif_running(netdev)) { 2217 netif_carrier_off(netdev); 2218 netif_stop_queue(netdev); 2219 } 2220 adapter->link_changed = !adapter->has_link_events; 2221 } else if (!adapter->ahw.linkup && linkup) { 2222 printk(KERN_INFO "%s: %s NIC Link is up\n", 2223 netxen_nic_driver_name, netdev->name); 2224 adapter->ahw.linkup = 1; 2225 if (netif_running(netdev)) { 2226 netif_carrier_on(netdev); 2227 netif_wake_queue(netdev); 2228 } 2229 adapter->link_changed = !adapter->has_link_events; 2230 } 2231 } 2232 2233 static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter) 2234 { 2235 u32 val, port, linkup; 2236 2237 port = adapter->physical_port; 2238 2239 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 2240 val = NXRD32(adapter, CRB_XG_STATE_P3); 2241 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val); 2242 linkup = (val == XG_LINK_UP_P3); 2243 } else { 2244 val = NXRD32(adapter, CRB_XG_STATE); 2245 val = (val >> port*8) & 0xff; 2246 linkup = (val == XG_LINK_UP); 2247 } 2248 2249 netxen_advert_link_change(adapter, linkup); 2250 } 2251 2252 static void netxen_tx_timeout(struct net_device *netdev) 2253 { 2254 struct netxen_adapter *adapter = netdev_priv(netdev); 2255 2256 if (test_bit(__NX_RESETTING, &adapter->state)) 2257 return; 2258 2259 dev_err(&netdev->dev, "transmit timeout, resetting.\n"); 2260 schedule_work(&adapter->tx_timeout_task); 2261 } 2262 2263 static void netxen_tx_timeout_task(struct work_struct *work) 2264 { 2265 struct netxen_adapter *adapter = 2266 container_of(work, struct netxen_adapter, tx_timeout_task); 2267 2268 if (!netif_running(adapter->netdev)) 2269 return; 2270 2271 if (test_and_set_bit(__NX_RESETTING, &adapter->state)) 2272 return; 2273 2274 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS) 2275 goto request_reset; 2276 2277 rtnl_lock(); 2278 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 2279 /* try to scrub interrupt */ 2280 netxen_napi_disable(adapter); 2281 2282 netxen_napi_enable(adapter); 2283 2284 netif_wake_queue(adapter->netdev); 2285 2286 clear_bit(__NX_RESETTING, &adapter->state); 2287 } else { 2288 clear_bit(__NX_RESETTING, &adapter->state); 2289 if (netxen_nic_reset_context(adapter)) { 2290 rtnl_unlock(); 2291 goto request_reset; 2292 } 2293 } 2294 adapter->netdev->trans_start = jiffies; 2295 rtnl_unlock(); 2296 return; 2297 2298 request_reset: 2299 adapter->need_fw_reset = 1; 2300 clear_bit(__NX_RESETTING, &adapter->state); 2301 } 2302 2303 static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *netdev, 2304 struct rtnl_link_stats64 *stats) 2305 { 2306 struct netxen_adapter *adapter = netdev_priv(netdev); 2307 2308 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts; 2309 stats->tx_packets = adapter->stats.xmitfinished; 2310 stats->rx_bytes = adapter->stats.rxbytes; 2311 stats->tx_bytes = adapter->stats.txbytes; 2312 stats->rx_dropped = adapter->stats.rxdropped; 2313 stats->tx_dropped = adapter->stats.txdropped; 2314 2315 return stats; 2316 } 2317 2318 static irqreturn_t netxen_intr(int irq, void *data) 2319 { 2320 struct nx_host_sds_ring *sds_ring = data; 2321 struct netxen_adapter *adapter = sds_ring->adapter; 2322 u32 status = 0; 2323 2324 status = readl(adapter->isr_int_vec); 2325 2326 if (!(status & adapter->int_vec_bit)) 2327 return IRQ_NONE; 2328 2329 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 2330 /* check interrupt state machine, to be sure */ 2331 status = readl(adapter->crb_int_state_reg); 2332 if (!ISR_LEGACY_INT_TRIGGERED(status)) 2333 return IRQ_NONE; 2334 2335 } else { 2336 unsigned long our_int = 0; 2337 2338 our_int = readl(adapter->crb_int_state_reg); 2339 2340 /* not our interrupt */ 2341 if (!test_and_clear_bit((7 + adapter->portnum), &our_int)) 2342 return IRQ_NONE; 2343 2344 /* claim interrupt */ 2345 writel((our_int & 0xffffffff), adapter->crb_int_state_reg); 2346 2347 /* clear interrupt */ 2348 netxen_nic_disable_int(sds_ring); 2349 } 2350 2351 writel(0xffffffff, adapter->tgt_status_reg); 2352 /* read twice to ensure write is flushed */ 2353 readl(adapter->isr_int_vec); 2354 readl(adapter->isr_int_vec); 2355 2356 napi_schedule(&sds_ring->napi); 2357 2358 return IRQ_HANDLED; 2359 } 2360 2361 static irqreturn_t netxen_msi_intr(int irq, void *data) 2362 { 2363 struct nx_host_sds_ring *sds_ring = data; 2364 struct netxen_adapter *adapter = sds_ring->adapter; 2365 2366 /* clear interrupt */ 2367 writel(0xffffffff, adapter->tgt_status_reg); 2368 2369 napi_schedule(&sds_ring->napi); 2370 return IRQ_HANDLED; 2371 } 2372 2373 static irqreturn_t netxen_msix_intr(int irq, void *data) 2374 { 2375 struct nx_host_sds_ring *sds_ring = data; 2376 2377 napi_schedule(&sds_ring->napi); 2378 return IRQ_HANDLED; 2379 } 2380 2381 static int netxen_nic_poll(struct napi_struct *napi, int budget) 2382 { 2383 struct nx_host_sds_ring *sds_ring = 2384 container_of(napi, struct nx_host_sds_ring, napi); 2385 2386 struct netxen_adapter *adapter = sds_ring->adapter; 2387 2388 int tx_complete; 2389 int work_done; 2390 2391 tx_complete = netxen_process_cmd_ring(adapter); 2392 2393 work_done = netxen_process_rcv_ring(sds_ring, budget); 2394 2395 if ((work_done < budget) && tx_complete) { 2396 napi_complete(&sds_ring->napi); 2397 if (test_bit(__NX_DEV_UP, &adapter->state)) 2398 netxen_nic_enable_int(sds_ring); 2399 } 2400 2401 return work_done; 2402 } 2403 2404 #ifdef CONFIG_NET_POLL_CONTROLLER 2405 static void netxen_nic_poll_controller(struct net_device *netdev) 2406 { 2407 int ring; 2408 struct nx_host_sds_ring *sds_ring; 2409 struct netxen_adapter *adapter = netdev_priv(netdev); 2410 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 2411 2412 disable_irq(adapter->irq); 2413 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 2414 sds_ring = &recv_ctx->sds_rings[ring]; 2415 netxen_intr(adapter->irq, sds_ring); 2416 } 2417 enable_irq(adapter->irq); 2418 } 2419 #endif 2420 2421 static int 2422 nx_incr_dev_ref_cnt(struct netxen_adapter *adapter) 2423 { 2424 int count; 2425 if (netxen_api_lock(adapter)) 2426 return -EIO; 2427 2428 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2429 2430 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count); 2431 2432 netxen_api_unlock(adapter); 2433 return count; 2434 } 2435 2436 static int 2437 nx_decr_dev_ref_cnt(struct netxen_adapter *adapter) 2438 { 2439 int count, state; 2440 if (netxen_api_lock(adapter)) 2441 return -EIO; 2442 2443 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2444 WARN_ON(count == 0); 2445 2446 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count); 2447 state = NXRD32(adapter, NX_CRB_DEV_STATE); 2448 2449 if (count == 0 && state != NX_DEV_FAILED) 2450 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD); 2451 2452 netxen_api_unlock(adapter); 2453 return count; 2454 } 2455 2456 static int 2457 nx_dev_request_aer(struct netxen_adapter *adapter) 2458 { 2459 u32 state; 2460 int ret = -EINVAL; 2461 2462 if (netxen_api_lock(adapter)) 2463 return ret; 2464 2465 state = NXRD32(adapter, NX_CRB_DEV_STATE); 2466 2467 if (state == NX_DEV_NEED_AER) 2468 ret = 0; 2469 else if (state == NX_DEV_READY) { 2470 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER); 2471 ret = 0; 2472 } 2473 2474 netxen_api_unlock(adapter); 2475 return ret; 2476 } 2477 2478 int 2479 nx_dev_request_reset(struct netxen_adapter *adapter) 2480 { 2481 u32 state; 2482 int ret = -EINVAL; 2483 2484 if (netxen_api_lock(adapter)) 2485 return ret; 2486 2487 state = NXRD32(adapter, NX_CRB_DEV_STATE); 2488 2489 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) 2490 ret = 0; 2491 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) { 2492 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET); 2493 adapter->flags |= NETXEN_FW_RESET_OWNER; 2494 ret = 0; 2495 } 2496 2497 netxen_api_unlock(adapter); 2498 2499 return ret; 2500 } 2501 2502 static int 2503 netxen_can_start_firmware(struct netxen_adapter *adapter) 2504 { 2505 int count; 2506 int can_start = 0; 2507 2508 if (netxen_api_lock(adapter)) { 2509 nx_incr_dev_ref_cnt(adapter); 2510 return -1; 2511 } 2512 2513 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2514 2515 if ((count < 0) || (count >= NX_MAX_PCI_FUNC)) 2516 count = 0; 2517 2518 if (count == 0) { 2519 can_start = 1; 2520 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING); 2521 } 2522 2523 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count); 2524 2525 netxen_api_unlock(adapter); 2526 2527 return can_start; 2528 } 2529 2530 static void 2531 netxen_schedule_work(struct netxen_adapter *adapter, 2532 work_func_t func, int delay) 2533 { 2534 INIT_DELAYED_WORK(&adapter->fw_work, func); 2535 schedule_delayed_work(&adapter->fw_work, delay); 2536 } 2537 2538 static void 2539 netxen_cancel_fw_work(struct netxen_adapter *adapter) 2540 { 2541 while (test_and_set_bit(__NX_RESETTING, &adapter->state)) 2542 msleep(10); 2543 2544 cancel_delayed_work_sync(&adapter->fw_work); 2545 } 2546 2547 static void 2548 netxen_attach_work(struct work_struct *work) 2549 { 2550 struct netxen_adapter *adapter = container_of(work, 2551 struct netxen_adapter, fw_work.work); 2552 struct net_device *netdev = adapter->netdev; 2553 int err = 0; 2554 2555 if (netif_running(netdev)) { 2556 err = netxen_nic_attach(adapter); 2557 if (err) 2558 goto done; 2559 2560 err = netxen_nic_up(adapter, netdev); 2561 if (err) { 2562 netxen_nic_detach(adapter); 2563 goto done; 2564 } 2565 2566 netxen_restore_indev_addr(netdev, NETDEV_UP); 2567 } 2568 2569 netif_device_attach(netdev); 2570 2571 done: 2572 adapter->fw_fail_cnt = 0; 2573 clear_bit(__NX_RESETTING, &adapter->state); 2574 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 2575 } 2576 2577 static void 2578 netxen_fwinit_work(struct work_struct *work) 2579 { 2580 struct netxen_adapter *adapter = container_of(work, 2581 struct netxen_adapter, fw_work.work); 2582 int dev_state; 2583 int count; 2584 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE); 2585 if (adapter->flags & NETXEN_FW_RESET_OWNER) { 2586 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2587 WARN_ON(count == 0); 2588 if (count == 1) { 2589 if (adapter->mdump.md_enabled) { 2590 rtnl_lock(); 2591 netxen_dump_fw(adapter); 2592 rtnl_unlock(); 2593 } 2594 adapter->flags &= ~NETXEN_FW_RESET_OWNER; 2595 if (netxen_api_lock(adapter)) { 2596 clear_bit(__NX_RESETTING, &adapter->state); 2597 NXWR32(adapter, NX_CRB_DEV_STATE, 2598 NX_DEV_FAILED); 2599 return; 2600 } 2601 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2602 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count); 2603 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD); 2604 dev_state = NX_DEV_COLD; 2605 netxen_api_unlock(adapter); 2606 } 2607 } 2608 2609 switch (dev_state) { 2610 case NX_DEV_COLD: 2611 case NX_DEV_READY: 2612 if (!netxen_start_firmware(adapter)) { 2613 netxen_schedule_work(adapter, netxen_attach_work, 0); 2614 return; 2615 } 2616 break; 2617 2618 case NX_DEV_NEED_RESET: 2619 case NX_DEV_INITALIZING: 2620 netxen_schedule_work(adapter, 2621 netxen_fwinit_work, 2 * FW_POLL_DELAY); 2622 return; 2623 2624 case NX_DEV_FAILED: 2625 default: 2626 nx_incr_dev_ref_cnt(adapter); 2627 break; 2628 } 2629 2630 if (netxen_api_lock(adapter)) { 2631 clear_bit(__NX_RESETTING, &adapter->state); 2632 return; 2633 } 2634 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_FAILED); 2635 netxen_api_unlock(adapter); 2636 dev_err(&adapter->pdev->dev, "%s: Device initialization Failed\n", 2637 adapter->netdev->name); 2638 2639 clear_bit(__NX_RESETTING, &adapter->state); 2640 } 2641 2642 static void 2643 netxen_detach_work(struct work_struct *work) 2644 { 2645 struct netxen_adapter *adapter = container_of(work, 2646 struct netxen_adapter, fw_work.work); 2647 struct net_device *netdev = adapter->netdev; 2648 int ref_cnt = 0, delay; 2649 u32 status; 2650 2651 netif_device_detach(netdev); 2652 2653 netxen_nic_down(adapter, netdev); 2654 2655 rtnl_lock(); 2656 netxen_nic_detach(adapter); 2657 rtnl_unlock(); 2658 2659 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1); 2660 2661 if (status & NX_RCODE_FATAL_ERROR) 2662 goto err_ret; 2663 2664 if (adapter->temp == NX_TEMP_PANIC) 2665 goto err_ret; 2666 2667 if (!(adapter->flags & NETXEN_FW_RESET_OWNER)) 2668 ref_cnt = nx_decr_dev_ref_cnt(adapter); 2669 2670 if (ref_cnt == -EIO) 2671 goto err_ret; 2672 2673 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY); 2674 2675 adapter->fw_wait_cnt = 0; 2676 netxen_schedule_work(adapter, netxen_fwinit_work, delay); 2677 2678 return; 2679 2680 err_ret: 2681 clear_bit(__NX_RESETTING, &adapter->state); 2682 } 2683 2684 static int 2685 netxen_check_health(struct netxen_adapter *adapter) 2686 { 2687 u32 state, heartbit; 2688 u32 peg_status; 2689 struct net_device *netdev = adapter->netdev; 2690 2691 state = NXRD32(adapter, NX_CRB_DEV_STATE); 2692 if (state == NX_DEV_NEED_AER) 2693 return 0; 2694 2695 if (netxen_nic_check_temp(adapter)) 2696 goto detach; 2697 2698 if (adapter->need_fw_reset) { 2699 if (nx_dev_request_reset(adapter)) 2700 return 0; 2701 goto detach; 2702 } 2703 2704 /* NX_DEV_NEED_RESET, this state can be marked in two cases 2705 * 1. Tx timeout 2. Fw hang 2706 * Send request to destroy context in case of tx timeout only 2707 * and doesn't required in case of Fw hang 2708 */ 2709 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) { 2710 adapter->need_fw_reset = 1; 2711 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 2712 goto detach; 2713 } 2714 2715 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 2716 return 0; 2717 2718 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER); 2719 if (heartbit != adapter->heartbit) { 2720 adapter->heartbit = heartbit; 2721 adapter->fw_fail_cnt = 0; 2722 if (adapter->need_fw_reset) 2723 goto detach; 2724 return 0; 2725 } 2726 2727 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH) 2728 return 0; 2729 2730 if (nx_dev_request_reset(adapter)) 2731 return 0; 2732 2733 clear_bit(__NX_FW_ATTACHED, &adapter->state); 2734 2735 dev_err(&netdev->dev, "firmware hang detected\n"); 2736 peg_status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1); 2737 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n" 2738 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n" 2739 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n" 2740 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n" 2741 "PEG_NET_4_PC: 0x%x\n", 2742 peg_status, 2743 NXRD32(adapter, NETXEN_PEG_HALT_STATUS2), 2744 NXRD32(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c), 2745 NXRD32(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c), 2746 NXRD32(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c), 2747 NXRD32(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c), 2748 NXRD32(adapter, NETXEN_CRB_PEG_NET_4 + 0x3c)); 2749 if (NX_FWERROR_PEGSTAT1(peg_status) == 0x67) 2750 dev_err(&adapter->pdev->dev, 2751 "Firmware aborted with error code 0x00006700. " 2752 "Device is being reset.\n"); 2753 detach: 2754 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) && 2755 !test_and_set_bit(__NX_RESETTING, &adapter->state)) 2756 netxen_schedule_work(adapter, netxen_detach_work, 0); 2757 return 1; 2758 } 2759 2760 static void 2761 netxen_fw_poll_work(struct work_struct *work) 2762 { 2763 struct netxen_adapter *adapter = container_of(work, 2764 struct netxen_adapter, fw_work.work); 2765 2766 if (test_bit(__NX_RESETTING, &adapter->state)) 2767 goto reschedule; 2768 2769 if (test_bit(__NX_DEV_UP, &adapter->state)) { 2770 if (!adapter->has_link_events) { 2771 2772 netxen_nic_handle_phy_intr(adapter); 2773 2774 if (adapter->link_changed) 2775 netxen_nic_set_link_parameters(adapter); 2776 } 2777 } 2778 2779 if (netxen_check_health(adapter)) 2780 return; 2781 2782 reschedule: 2783 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 2784 } 2785 2786 static ssize_t 2787 netxen_store_bridged_mode(struct device *dev, 2788 struct device_attribute *attr, const char *buf, size_t len) 2789 { 2790 struct net_device *net = to_net_dev(dev); 2791 struct netxen_adapter *adapter = netdev_priv(net); 2792 unsigned long new; 2793 int ret = -EINVAL; 2794 2795 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG)) 2796 goto err_out; 2797 2798 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 2799 goto err_out; 2800 2801 if (kstrtoul(buf, 2, &new)) 2802 goto err_out; 2803 2804 if (!netxen_config_bridged_mode(adapter, !!new)) 2805 ret = len; 2806 2807 err_out: 2808 return ret; 2809 } 2810 2811 static ssize_t 2812 netxen_show_bridged_mode(struct device *dev, 2813 struct device_attribute *attr, char *buf) 2814 { 2815 struct net_device *net = to_net_dev(dev); 2816 struct netxen_adapter *adapter; 2817 int bridged_mode = 0; 2818 2819 adapter = netdev_priv(net); 2820 2821 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) 2822 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED); 2823 2824 return sprintf(buf, "%d\n", bridged_mode); 2825 } 2826 2827 static struct device_attribute dev_attr_bridged_mode = { 2828 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)}, 2829 .show = netxen_show_bridged_mode, 2830 .store = netxen_store_bridged_mode, 2831 }; 2832 2833 static ssize_t 2834 netxen_store_diag_mode(struct device *dev, 2835 struct device_attribute *attr, const char *buf, size_t len) 2836 { 2837 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2838 unsigned long new; 2839 2840 if (kstrtoul(buf, 2, &new)) 2841 return -EINVAL; 2842 2843 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) 2844 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED; 2845 2846 return len; 2847 } 2848 2849 static ssize_t 2850 netxen_show_diag_mode(struct device *dev, 2851 struct device_attribute *attr, char *buf) 2852 { 2853 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2854 2855 return sprintf(buf, "%d\n", 2856 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)); 2857 } 2858 2859 static struct device_attribute dev_attr_diag_mode = { 2860 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)}, 2861 .show = netxen_show_diag_mode, 2862 .store = netxen_store_diag_mode, 2863 }; 2864 2865 static int 2866 netxen_sysfs_validate_crb(struct netxen_adapter *adapter, 2867 loff_t offset, size_t size) 2868 { 2869 size_t crb_size = 4; 2870 2871 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) 2872 return -EIO; 2873 2874 if (offset < NETXEN_PCI_CRBSPACE) { 2875 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 2876 return -EINVAL; 2877 2878 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, 2879 NETXEN_PCI_CAMQM_2M_END)) 2880 crb_size = 8; 2881 else 2882 return -EINVAL; 2883 } 2884 2885 if ((size != crb_size) || (offset & (crb_size-1))) 2886 return -EINVAL; 2887 2888 return 0; 2889 } 2890 2891 static ssize_t 2892 netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj, 2893 struct bin_attribute *attr, 2894 char *buf, loff_t offset, size_t size) 2895 { 2896 struct device *dev = container_of(kobj, struct device, kobj); 2897 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2898 u32 data; 2899 u64 qmdata; 2900 int ret; 2901 2902 ret = netxen_sysfs_validate_crb(adapter, offset, size); 2903 if (ret != 0) 2904 return ret; 2905 2906 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && 2907 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, 2908 NETXEN_PCI_CAMQM_2M_END)) { 2909 netxen_pci_camqm_read_2M(adapter, offset, &qmdata); 2910 memcpy(buf, &qmdata, size); 2911 } else { 2912 data = NXRD32(adapter, offset); 2913 memcpy(buf, &data, size); 2914 } 2915 2916 return size; 2917 } 2918 2919 static ssize_t 2920 netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj, 2921 struct bin_attribute *attr, 2922 char *buf, loff_t offset, size_t size) 2923 { 2924 struct device *dev = container_of(kobj, struct device, kobj); 2925 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2926 u32 data; 2927 u64 qmdata; 2928 int ret; 2929 2930 ret = netxen_sysfs_validate_crb(adapter, offset, size); 2931 if (ret != 0) 2932 return ret; 2933 2934 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && 2935 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, 2936 NETXEN_PCI_CAMQM_2M_END)) { 2937 memcpy(&qmdata, buf, size); 2938 netxen_pci_camqm_write_2M(adapter, offset, qmdata); 2939 } else { 2940 memcpy(&data, buf, size); 2941 NXWR32(adapter, offset, data); 2942 } 2943 2944 return size; 2945 } 2946 2947 static int 2948 netxen_sysfs_validate_mem(struct netxen_adapter *adapter, 2949 loff_t offset, size_t size) 2950 { 2951 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) 2952 return -EIO; 2953 2954 if ((size != 8) || (offset & 0x7)) 2955 return -EIO; 2956 2957 return 0; 2958 } 2959 2960 static ssize_t 2961 netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj, 2962 struct bin_attribute *attr, 2963 char *buf, loff_t offset, size_t size) 2964 { 2965 struct device *dev = container_of(kobj, struct device, kobj); 2966 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2967 u64 data; 2968 int ret; 2969 2970 ret = netxen_sysfs_validate_mem(adapter, offset, size); 2971 if (ret != 0) 2972 return ret; 2973 2974 if (adapter->pci_mem_read(adapter, offset, &data)) 2975 return -EIO; 2976 2977 memcpy(buf, &data, size); 2978 2979 return size; 2980 } 2981 2982 static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj, 2983 struct bin_attribute *attr, char *buf, 2984 loff_t offset, size_t size) 2985 { 2986 struct device *dev = container_of(kobj, struct device, kobj); 2987 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2988 u64 data; 2989 int ret; 2990 2991 ret = netxen_sysfs_validate_mem(adapter, offset, size); 2992 if (ret != 0) 2993 return ret; 2994 2995 memcpy(&data, buf, size); 2996 2997 if (adapter->pci_mem_write(adapter, offset, data)) 2998 return -EIO; 2999 3000 return size; 3001 } 3002 3003 3004 static struct bin_attribute bin_attr_crb = { 3005 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)}, 3006 .size = 0, 3007 .read = netxen_sysfs_read_crb, 3008 .write = netxen_sysfs_write_crb, 3009 }; 3010 3011 static struct bin_attribute bin_attr_mem = { 3012 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)}, 3013 .size = 0, 3014 .read = netxen_sysfs_read_mem, 3015 .write = netxen_sysfs_write_mem, 3016 }; 3017 3018 static ssize_t 3019 netxen_sysfs_read_dimm(struct file *filp, struct kobject *kobj, 3020 struct bin_attribute *attr, 3021 char *buf, loff_t offset, size_t size) 3022 { 3023 struct device *dev = container_of(kobj, struct device, kobj); 3024 struct netxen_adapter *adapter = dev_get_drvdata(dev); 3025 struct net_device *netdev = adapter->netdev; 3026 struct netxen_dimm_cfg dimm; 3027 u8 dw, rows, cols, banks, ranks; 3028 u32 val; 3029 3030 if (size != sizeof(struct netxen_dimm_cfg)) { 3031 netdev_err(netdev, "Invalid size\n"); 3032 return -1; 3033 } 3034 3035 memset(&dimm, 0, sizeof(struct netxen_dimm_cfg)); 3036 val = NXRD32(adapter, NETXEN_DIMM_CAPABILITY); 3037 3038 /* Checks if DIMM info is valid. */ 3039 if (val & NETXEN_DIMM_VALID_FLAG) { 3040 netdev_err(netdev, "Invalid DIMM flag\n"); 3041 dimm.presence = 0xff; 3042 goto out; 3043 } 3044 3045 rows = NETXEN_DIMM_NUMROWS(val); 3046 cols = NETXEN_DIMM_NUMCOLS(val); 3047 ranks = NETXEN_DIMM_NUMRANKS(val); 3048 banks = NETXEN_DIMM_NUMBANKS(val); 3049 dw = NETXEN_DIMM_DATAWIDTH(val); 3050 3051 dimm.presence = (val & NETXEN_DIMM_PRESENT); 3052 3053 /* Checks if DIMM info is present. */ 3054 if (!dimm.presence) { 3055 netdev_err(netdev, "DIMM not present\n"); 3056 goto out; 3057 } 3058 3059 dimm.dimm_type = NETXEN_DIMM_TYPE(val); 3060 3061 switch (dimm.dimm_type) { 3062 case NETXEN_DIMM_TYPE_RDIMM: 3063 case NETXEN_DIMM_TYPE_UDIMM: 3064 case NETXEN_DIMM_TYPE_SO_DIMM: 3065 case NETXEN_DIMM_TYPE_Micro_DIMM: 3066 case NETXEN_DIMM_TYPE_Mini_RDIMM: 3067 case NETXEN_DIMM_TYPE_Mini_UDIMM: 3068 break; 3069 default: 3070 netdev_err(netdev, "Invalid DIMM type %x\n", dimm.dimm_type); 3071 goto out; 3072 } 3073 3074 if (val & NETXEN_DIMM_MEMTYPE_DDR2_SDRAM) 3075 dimm.mem_type = NETXEN_DIMM_MEM_DDR2_SDRAM; 3076 else 3077 dimm.mem_type = NETXEN_DIMM_MEMTYPE(val); 3078 3079 if (val & NETXEN_DIMM_SIZE) { 3080 dimm.size = NETXEN_DIMM_STD_MEM_SIZE; 3081 goto out; 3082 } 3083 3084 if (!rows) { 3085 netdev_err(netdev, "Invalid no of rows %x\n", rows); 3086 goto out; 3087 } 3088 3089 if (!cols) { 3090 netdev_err(netdev, "Invalid no of columns %x\n", cols); 3091 goto out; 3092 } 3093 3094 if (!banks) { 3095 netdev_err(netdev, "Invalid no of banks %x\n", banks); 3096 goto out; 3097 } 3098 3099 ranks += 1; 3100 3101 switch (dw) { 3102 case 0x0: 3103 dw = 32; 3104 break; 3105 case 0x1: 3106 dw = 33; 3107 break; 3108 case 0x2: 3109 dw = 36; 3110 break; 3111 case 0x3: 3112 dw = 64; 3113 break; 3114 case 0x4: 3115 dw = 72; 3116 break; 3117 case 0x5: 3118 dw = 80; 3119 break; 3120 case 0x6: 3121 dw = 128; 3122 break; 3123 case 0x7: 3124 dw = 144; 3125 break; 3126 default: 3127 netdev_err(netdev, "Invalid data-width %x\n", dw); 3128 goto out; 3129 } 3130 3131 dimm.size = ((1 << rows) * (1 << cols) * dw * banks * ranks) / 8; 3132 /* Size returned in MB. */ 3133 dimm.size = (dimm.size) / 0x100000; 3134 out: 3135 memcpy(buf, &dimm, sizeof(struct netxen_dimm_cfg)); 3136 return sizeof(struct netxen_dimm_cfg); 3137 3138 } 3139 3140 static struct bin_attribute bin_attr_dimm = { 3141 .attr = { .name = "dimm", .mode = (S_IRUGO | S_IWUSR) }, 3142 .size = 0, 3143 .read = netxen_sysfs_read_dimm, 3144 }; 3145 3146 3147 static void 3148 netxen_create_sysfs_entries(struct netxen_adapter *adapter) 3149 { 3150 struct device *dev = &adapter->pdev->dev; 3151 3152 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) { 3153 /* bridged_mode control */ 3154 if (device_create_file(dev, &dev_attr_bridged_mode)) { 3155 dev_warn(dev, 3156 "failed to create bridged_mode sysfs entry\n"); 3157 } 3158 } 3159 } 3160 3161 static void 3162 netxen_remove_sysfs_entries(struct netxen_adapter *adapter) 3163 { 3164 struct device *dev = &adapter->pdev->dev; 3165 3166 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) 3167 device_remove_file(dev, &dev_attr_bridged_mode); 3168 } 3169 3170 static void 3171 netxen_create_diag_entries(struct netxen_adapter *adapter) 3172 { 3173 struct pci_dev *pdev = adapter->pdev; 3174 struct device *dev; 3175 3176 dev = &pdev->dev; 3177 if (device_create_file(dev, &dev_attr_diag_mode)) 3178 dev_info(dev, "failed to create diag_mode sysfs entry\n"); 3179 if (device_create_bin_file(dev, &bin_attr_crb)) 3180 dev_info(dev, "failed to create crb sysfs entry\n"); 3181 if (device_create_bin_file(dev, &bin_attr_mem)) 3182 dev_info(dev, "failed to create mem sysfs entry\n"); 3183 if (device_create_bin_file(dev, &bin_attr_dimm)) 3184 dev_info(dev, "failed to create dimm sysfs entry\n"); 3185 } 3186 3187 3188 static void 3189 netxen_remove_diag_entries(struct netxen_adapter *adapter) 3190 { 3191 struct pci_dev *pdev = adapter->pdev; 3192 struct device *dev = &pdev->dev; 3193 3194 device_remove_file(dev, &dev_attr_diag_mode); 3195 device_remove_bin_file(dev, &bin_attr_crb); 3196 device_remove_bin_file(dev, &bin_attr_mem); 3197 device_remove_bin_file(dev, &bin_attr_dimm); 3198 } 3199 3200 #ifdef CONFIG_INET 3201 3202 #define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops) 3203 3204 static int 3205 netxen_destip_supported(struct netxen_adapter *adapter) 3206 { 3207 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 3208 return 0; 3209 3210 if (adapter->ahw.cut_through) 3211 return 0; 3212 3213 return 1; 3214 } 3215 3216 static void 3217 netxen_free_ip_list(struct netxen_adapter *adapter, bool master) 3218 { 3219 struct nx_ip_list *cur, *tmp_cur; 3220 3221 list_for_each_entry_safe(cur, tmp_cur, &adapter->ip_list, list) { 3222 if (master) { 3223 if (cur->master) { 3224 netxen_config_ipaddr(adapter, cur->ip_addr, 3225 NX_IP_DOWN); 3226 list_del(&cur->list); 3227 kfree(cur); 3228 } 3229 } else { 3230 netxen_config_ipaddr(adapter, cur->ip_addr, NX_IP_DOWN); 3231 list_del(&cur->list); 3232 kfree(cur); 3233 } 3234 } 3235 } 3236 3237 static bool 3238 netxen_list_config_ip(struct netxen_adapter *adapter, 3239 struct in_ifaddr *ifa, unsigned long event) 3240 { 3241 struct net_device *dev; 3242 struct nx_ip_list *cur, *tmp_cur; 3243 struct list_head *head; 3244 bool ret = false; 3245 3246 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL; 3247 3248 if (dev == NULL) 3249 goto out; 3250 3251 switch (event) { 3252 case NX_IP_UP: 3253 list_for_each(head, &adapter->ip_list) { 3254 cur = list_entry(head, struct nx_ip_list, list); 3255 3256 if (cur->ip_addr == ifa->ifa_address) 3257 goto out; 3258 } 3259 3260 cur = kzalloc(sizeof(struct nx_ip_list), GFP_ATOMIC); 3261 if (cur == NULL) 3262 goto out; 3263 if (dev->priv_flags & IFF_802_1Q_VLAN) 3264 dev = vlan_dev_real_dev(dev); 3265 cur->master = !!netif_is_bond_master(dev); 3266 cur->ip_addr = ifa->ifa_address; 3267 list_add_tail(&cur->list, &adapter->ip_list); 3268 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP); 3269 ret = true; 3270 break; 3271 case NX_IP_DOWN: 3272 list_for_each_entry_safe(cur, tmp_cur, 3273 &adapter->ip_list, list) { 3274 if (cur->ip_addr == ifa->ifa_address) { 3275 list_del(&cur->list); 3276 kfree(cur); 3277 netxen_config_ipaddr(adapter, ifa->ifa_address, 3278 NX_IP_DOWN); 3279 ret = true; 3280 break; 3281 } 3282 } 3283 } 3284 out: 3285 return ret; 3286 } 3287 3288 static void 3289 netxen_config_indev_addr(struct netxen_adapter *adapter, 3290 struct net_device *dev, unsigned long event) 3291 { 3292 struct in_device *indev; 3293 3294 if (!netxen_destip_supported(adapter)) 3295 return; 3296 3297 indev = in_dev_get(dev); 3298 if (!indev) 3299 return; 3300 3301 for_ifa(indev) { 3302 switch (event) { 3303 case NETDEV_UP: 3304 netxen_list_config_ip(adapter, ifa, NX_IP_UP); 3305 break; 3306 case NETDEV_DOWN: 3307 netxen_list_config_ip(adapter, ifa, NX_IP_DOWN); 3308 break; 3309 default: 3310 break; 3311 } 3312 } endfor_ifa(indev); 3313 3314 in_dev_put(indev); 3315 } 3316 3317 static void 3318 netxen_restore_indev_addr(struct net_device *netdev, unsigned long event) 3319 3320 { 3321 struct netxen_adapter *adapter = netdev_priv(netdev); 3322 struct nx_ip_list *pos, *tmp_pos; 3323 unsigned long ip_event; 3324 3325 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN; 3326 netxen_config_indev_addr(adapter, netdev, event); 3327 3328 list_for_each_entry_safe(pos, tmp_pos, &adapter->ip_list, list) { 3329 netxen_config_ipaddr(adapter, pos->ip_addr, ip_event); 3330 } 3331 } 3332 3333 static inline bool 3334 netxen_config_checkdev(struct net_device *dev) 3335 { 3336 struct netxen_adapter *adapter; 3337 3338 if (!is_netxen_netdev(dev)) 3339 return false; 3340 adapter = netdev_priv(dev); 3341 if (!adapter) 3342 return false; 3343 if (!netxen_destip_supported(adapter)) 3344 return false; 3345 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 3346 return false; 3347 3348 return true; 3349 } 3350 3351 /** 3352 * netxen_config_master - configure addresses based on master 3353 * @dev: netxen device 3354 * @event: netdev event 3355 */ 3356 static void netxen_config_master(struct net_device *dev, unsigned long event) 3357 { 3358 struct net_device *master, *slave; 3359 struct netxen_adapter *adapter = netdev_priv(dev); 3360 3361 rcu_read_lock(); 3362 master = netdev_master_upper_dev_get_rcu(dev); 3363 /* 3364 * This is the case where the netxen nic is being 3365 * enslaved and is dev_open()ed in bond_enslave() 3366 * Now we should program the bond's (and its vlans') 3367 * addresses in the netxen NIC. 3368 */ 3369 if (master && netif_is_bond_master(master) && 3370 !netif_is_bond_slave(dev)) { 3371 netxen_config_indev_addr(adapter, master, event); 3372 for_each_netdev_rcu(&init_net, slave) 3373 if (slave->priv_flags & IFF_802_1Q_VLAN && 3374 vlan_dev_real_dev(slave) == master) 3375 netxen_config_indev_addr(adapter, slave, event); 3376 } 3377 rcu_read_unlock(); 3378 /* 3379 * This is the case where the netxen nic is being 3380 * released and is dev_close()ed in bond_release() 3381 * just before IFF_BONDING is stripped. 3382 */ 3383 if (!master && dev->priv_flags & IFF_BONDING) 3384 netxen_free_ip_list(adapter, true); 3385 } 3386 3387 static int netxen_netdev_event(struct notifier_block *this, 3388 unsigned long event, void *ptr) 3389 { 3390 struct netxen_adapter *adapter; 3391 struct net_device *dev = netdev_notifier_info_to_dev(ptr); 3392 struct net_device *orig_dev = dev; 3393 struct net_device *slave; 3394 3395 recheck: 3396 if (dev == NULL) 3397 goto done; 3398 3399 if (dev->priv_flags & IFF_802_1Q_VLAN) { 3400 dev = vlan_dev_real_dev(dev); 3401 goto recheck; 3402 } 3403 if (event == NETDEV_UP || event == NETDEV_DOWN) { 3404 /* If this is a bonding device, look for netxen-based slaves*/ 3405 if (netif_is_bond_master(dev)) { 3406 rcu_read_lock(); 3407 for_each_netdev_in_bond_rcu(dev, slave) { 3408 if (!netxen_config_checkdev(slave)) 3409 continue; 3410 adapter = netdev_priv(slave); 3411 netxen_config_indev_addr(adapter, 3412 orig_dev, event); 3413 } 3414 rcu_read_unlock(); 3415 } else { 3416 if (!netxen_config_checkdev(dev)) 3417 goto done; 3418 adapter = netdev_priv(dev); 3419 /* Act only if the actual netxen is the target */ 3420 if (orig_dev == dev) 3421 netxen_config_master(dev, event); 3422 netxen_config_indev_addr(adapter, orig_dev, event); 3423 } 3424 } 3425 done: 3426 return NOTIFY_DONE; 3427 } 3428 3429 static int 3430 netxen_inetaddr_event(struct notifier_block *this, 3431 unsigned long event, void *ptr) 3432 { 3433 struct netxen_adapter *adapter; 3434 struct net_device *dev, *slave; 3435 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr; 3436 unsigned long ip_event; 3437 3438 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL; 3439 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN; 3440 recheck: 3441 if (dev == NULL) 3442 goto done; 3443 3444 if (dev->priv_flags & IFF_802_1Q_VLAN) { 3445 dev = vlan_dev_real_dev(dev); 3446 goto recheck; 3447 } 3448 if (event == NETDEV_UP || event == NETDEV_DOWN) { 3449 /* If this is a bonding device, look for netxen-based slaves*/ 3450 if (netif_is_bond_master(dev)) { 3451 rcu_read_lock(); 3452 for_each_netdev_in_bond_rcu(dev, slave) { 3453 if (!netxen_config_checkdev(slave)) 3454 continue; 3455 adapter = netdev_priv(slave); 3456 netxen_list_config_ip(adapter, ifa, ip_event); 3457 } 3458 rcu_read_unlock(); 3459 } else { 3460 if (!netxen_config_checkdev(dev)) 3461 goto done; 3462 adapter = netdev_priv(dev); 3463 netxen_list_config_ip(adapter, ifa, ip_event); 3464 } 3465 } 3466 done: 3467 return NOTIFY_DONE; 3468 } 3469 3470 static struct notifier_block netxen_netdev_cb = { 3471 .notifier_call = netxen_netdev_event, 3472 }; 3473 3474 static struct notifier_block netxen_inetaddr_cb = { 3475 .notifier_call = netxen_inetaddr_event, 3476 }; 3477 #else 3478 static void 3479 netxen_restore_indev_addr(struct net_device *dev, unsigned long event) 3480 { } 3481 static void 3482 netxen_free_ip_list(struct netxen_adapter *adapter, bool master) 3483 { } 3484 #endif 3485 3486 static const struct pci_error_handlers netxen_err_handler = { 3487 .error_detected = netxen_io_error_detected, 3488 .slot_reset = netxen_io_slot_reset, 3489 .resume = netxen_io_resume, 3490 }; 3491 3492 static struct pci_driver netxen_driver = { 3493 .name = netxen_nic_driver_name, 3494 .id_table = netxen_pci_tbl, 3495 .probe = netxen_nic_probe, 3496 .remove = netxen_nic_remove, 3497 #ifdef CONFIG_PM 3498 .suspend = netxen_nic_suspend, 3499 .resume = netxen_nic_resume, 3500 #endif 3501 .shutdown = netxen_nic_shutdown, 3502 .err_handler = &netxen_err_handler 3503 }; 3504 3505 static int __init netxen_init_module(void) 3506 { 3507 printk(KERN_INFO "%s\n", netxen_nic_driver_string); 3508 3509 #ifdef CONFIG_INET 3510 register_netdevice_notifier(&netxen_netdev_cb); 3511 register_inetaddr_notifier(&netxen_inetaddr_cb); 3512 #endif 3513 return pci_register_driver(&netxen_driver); 3514 } 3515 3516 module_init(netxen_init_module); 3517 3518 static void __exit netxen_exit_module(void) 3519 { 3520 pci_unregister_driver(&netxen_driver); 3521 3522 #ifdef CONFIG_INET 3523 unregister_inetaddr_notifier(&netxen_inetaddr_cb); 3524 unregister_netdevice_notifier(&netxen_netdev_cb); 3525 #endif 3526 } 3527 3528 module_exit(netxen_exit_module); 3529