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, NETXEN_NETDEV_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 int pos; 463 464 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX); 465 if (pos) { 466 pci_read_config_dword(pdev, pos, &control); 467 if (enable) 468 control |= PCI_MSIX_FLAGS_ENABLE; 469 else 470 control = 0; 471 pci_write_config_dword(pdev, pos, control); 472 } 473 } 474 475 static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count) 476 { 477 int i; 478 479 for (i = 0; i < count; i++) 480 adapter->msix_entries[i].entry = i; 481 } 482 483 static int 484 netxen_read_mac_addr(struct netxen_adapter *adapter) 485 { 486 int i; 487 unsigned char *p; 488 u64 mac_addr; 489 struct net_device *netdev = adapter->netdev; 490 struct pci_dev *pdev = adapter->pdev; 491 492 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 493 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0) 494 return -EIO; 495 } else { 496 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0) 497 return -EIO; 498 } 499 500 p = (unsigned char *)&mac_addr; 501 for (i = 0; i < 6; i++) 502 netdev->dev_addr[i] = *(p + 5 - i); 503 504 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len); 505 506 /* set station address */ 507 508 if (!is_valid_ether_addr(netdev->dev_addr)) 509 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr); 510 511 return 0; 512 } 513 514 static int netxen_nic_set_mac(struct net_device *netdev, void *p) 515 { 516 struct netxen_adapter *adapter = netdev_priv(netdev); 517 struct sockaddr *addr = p; 518 519 if (!is_valid_ether_addr(addr->sa_data)) 520 return -EADDRNOTAVAIL; 521 522 if (netif_running(netdev)) { 523 netif_device_detach(netdev); 524 netxen_napi_disable(adapter); 525 } 526 527 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len); 528 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); 529 adapter->macaddr_set(adapter, addr->sa_data); 530 531 if (netif_running(netdev)) { 532 netif_device_attach(netdev); 533 netxen_napi_enable(adapter); 534 } 535 return 0; 536 } 537 538 static void netxen_set_multicast_list(struct net_device *dev) 539 { 540 struct netxen_adapter *adapter = netdev_priv(dev); 541 542 adapter->set_multi(dev); 543 } 544 545 static netdev_features_t netxen_fix_features(struct net_device *dev, 546 netdev_features_t features) 547 { 548 if (!(features & NETIF_F_RXCSUM)) { 549 netdev_info(dev, "disabling LRO as RXCSUM is off\n"); 550 551 features &= ~NETIF_F_LRO; 552 } 553 554 return features; 555 } 556 557 static int netxen_set_features(struct net_device *dev, 558 netdev_features_t features) 559 { 560 struct netxen_adapter *adapter = netdev_priv(dev); 561 int hw_lro; 562 563 if (!((dev->features ^ features) & NETIF_F_LRO)) 564 return 0; 565 566 hw_lro = (features & NETIF_F_LRO) ? NETXEN_NIC_LRO_ENABLED 567 : NETXEN_NIC_LRO_DISABLED; 568 569 if (netxen_config_hw_lro(adapter, hw_lro)) 570 return -EIO; 571 572 if (!(features & NETIF_F_LRO) && netxen_send_lro_cleanup(adapter)) 573 return -EIO; 574 575 return 0; 576 } 577 578 static const struct net_device_ops netxen_netdev_ops = { 579 .ndo_open = netxen_nic_open, 580 .ndo_stop = netxen_nic_close, 581 .ndo_start_xmit = netxen_nic_xmit_frame, 582 .ndo_get_stats64 = netxen_nic_get_stats, 583 .ndo_validate_addr = eth_validate_addr, 584 .ndo_set_rx_mode = netxen_set_multicast_list, 585 .ndo_set_mac_address = netxen_nic_set_mac, 586 .ndo_change_mtu = netxen_nic_change_mtu, 587 .ndo_tx_timeout = netxen_tx_timeout, 588 .ndo_fix_features = netxen_fix_features, 589 .ndo_set_features = netxen_set_features, 590 #ifdef CONFIG_NET_POLL_CONTROLLER 591 .ndo_poll_controller = netxen_nic_poll_controller, 592 #endif 593 }; 594 595 static void 596 netxen_setup_intr(struct netxen_adapter *adapter) 597 { 598 struct netxen_legacy_intr_set *legacy_intrp; 599 struct pci_dev *pdev = adapter->pdev; 600 int err, num_msix; 601 602 if (adapter->rss_supported) { 603 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ? 604 MSIX_ENTRIES_PER_ADAPTER : 2; 605 } else 606 num_msix = 1; 607 608 adapter->max_sds_rings = 1; 609 610 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED); 611 612 if (adapter->ahw.revision_id >= NX_P3_B0) 613 legacy_intrp = &legacy_intr[adapter->ahw.pci_func]; 614 else 615 legacy_intrp = &legacy_intr[0]; 616 617 adapter->int_vec_bit = legacy_intrp->int_vec_bit; 618 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, 619 legacy_intrp->tgt_status_reg); 620 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter, 621 legacy_intrp->tgt_mask_reg); 622 adapter->pci_int_reg = netxen_get_ioaddr(adapter, 623 legacy_intrp->pci_int_reg); 624 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR); 625 626 if (adapter->ahw.revision_id >= NX_P3_B1) 627 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter, 628 ISR_INT_STATE_REG); 629 else 630 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter, 631 CRB_INT_VECTOR); 632 633 netxen_set_msix_bit(pdev, 0); 634 635 if (adapter->msix_supported) { 636 637 netxen_init_msix_entries(adapter, num_msix); 638 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix); 639 if (err == 0) { 640 adapter->flags |= NETXEN_NIC_MSIX_ENABLED; 641 netxen_set_msix_bit(pdev, 1); 642 643 if (adapter->rss_supported) 644 adapter->max_sds_rings = num_msix; 645 646 dev_info(&pdev->dev, "using msi-x interrupts\n"); 647 return; 648 } 649 650 if (err > 0) 651 pci_disable_msix(pdev); 652 653 /* fall through for msi */ 654 } 655 656 if (use_msi && !pci_enable_msi(pdev)) { 657 adapter->flags |= NETXEN_NIC_MSI_ENABLED; 658 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, 659 msi_tgt_status[adapter->ahw.pci_func]); 660 dev_info(&pdev->dev, "using msi interrupts\n"); 661 adapter->msix_entries[0].vector = pdev->irq; 662 return; 663 } 664 665 dev_info(&pdev->dev, "using legacy interrupts\n"); 666 adapter->msix_entries[0].vector = pdev->irq; 667 } 668 669 static void 670 netxen_teardown_intr(struct netxen_adapter *adapter) 671 { 672 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) 673 pci_disable_msix(adapter->pdev); 674 if (adapter->flags & NETXEN_NIC_MSI_ENABLED) 675 pci_disable_msi(adapter->pdev); 676 } 677 678 static void 679 netxen_cleanup_pci_map(struct netxen_adapter *adapter) 680 { 681 if (adapter->ahw.db_base != NULL) 682 iounmap(adapter->ahw.db_base); 683 if (adapter->ahw.pci_base0 != NULL) 684 iounmap(adapter->ahw.pci_base0); 685 if (adapter->ahw.pci_base1 != NULL) 686 iounmap(adapter->ahw.pci_base1); 687 if (adapter->ahw.pci_base2 != NULL) 688 iounmap(adapter->ahw.pci_base2); 689 } 690 691 static int 692 netxen_setup_pci_map(struct netxen_adapter *adapter) 693 { 694 void __iomem *db_ptr = NULL; 695 696 resource_size_t mem_base, db_base; 697 unsigned long mem_len, db_len = 0; 698 699 struct pci_dev *pdev = adapter->pdev; 700 int pci_func = adapter->ahw.pci_func; 701 struct netxen_hardware_context *ahw = &adapter->ahw; 702 703 int err = 0; 704 705 /* 706 * Set the CRB window to invalid. If any register in window 0 is 707 * accessed it should set the window to 0 and then reset it to 1. 708 */ 709 adapter->ahw.crb_win = -1; 710 adapter->ahw.ocm_win = -1; 711 712 /* remap phys address */ 713 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ 714 mem_len = pci_resource_len(pdev, 0); 715 716 /* 128 Meg of memory */ 717 if (mem_len == NETXEN_PCI_128MB_SIZE) { 718 719 ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE); 720 ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START, 721 SECOND_PAGE_GROUP_SIZE); 722 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START, 723 THIRD_PAGE_GROUP_SIZE); 724 if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL || 725 ahw->pci_base2 == NULL) { 726 dev_err(&pdev->dev, "failed to map PCI bar 0\n"); 727 err = -EIO; 728 goto err_out; 729 } 730 731 ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE; 732 733 } else if (mem_len == NETXEN_PCI_32MB_SIZE) { 734 735 ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE); 736 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START - 737 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE); 738 if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) { 739 dev_err(&pdev->dev, "failed to map PCI bar 0\n"); 740 err = -EIO; 741 goto err_out; 742 } 743 744 } else if (mem_len == NETXEN_PCI_2MB_SIZE) { 745 746 ahw->pci_base0 = pci_ioremap_bar(pdev, 0); 747 if (ahw->pci_base0 == NULL) { 748 dev_err(&pdev->dev, "failed to map PCI bar 0\n"); 749 return -EIO; 750 } 751 ahw->pci_len0 = mem_len; 752 } else { 753 return -EIO; 754 } 755 756 netxen_setup_hwops(adapter); 757 758 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20)); 759 760 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) { 761 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter, 762 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func))); 763 764 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 765 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter, 766 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func))); 767 } 768 769 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 770 goto skip_doorbell; 771 772 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ 773 db_len = pci_resource_len(pdev, 4); 774 775 if (db_len == 0) { 776 printk(KERN_ERR "%s: doorbell is disabled\n", 777 netxen_nic_driver_name); 778 err = -EIO; 779 goto err_out; 780 } 781 782 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES); 783 if (!db_ptr) { 784 printk(KERN_ERR "%s: Failed to allocate doorbell map.", 785 netxen_nic_driver_name); 786 err = -EIO; 787 goto err_out; 788 } 789 790 skip_doorbell: 791 adapter->ahw.db_base = db_ptr; 792 adapter->ahw.db_len = db_len; 793 return 0; 794 795 err_out: 796 netxen_cleanup_pci_map(adapter); 797 return err; 798 } 799 800 static void 801 netxen_check_options(struct netxen_adapter *adapter) 802 { 803 u32 fw_major, fw_minor, fw_build, prev_fw_version; 804 char brd_name[NETXEN_MAX_SHORT_NAME]; 805 char serial_num[32]; 806 int i, offset, val, err; 807 __le32 *ptr32; 808 struct pci_dev *pdev = adapter->pdev; 809 810 adapter->driver_mismatch = 0; 811 812 ptr32 = (__le32 *)&serial_num; 813 offset = NX_FW_SERIAL_NUM_OFFSET; 814 for (i = 0; i < 8; i++) { 815 if (netxen_rom_fast_read(adapter, offset, &val) == -1) { 816 dev_err(&pdev->dev, "error reading board info\n"); 817 adapter->driver_mismatch = 1; 818 return; 819 } 820 ptr32[i] = cpu_to_le32(val); 821 offset += sizeof(u32); 822 } 823 824 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR); 825 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR); 826 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB); 827 prev_fw_version = adapter->fw_version; 828 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build); 829 830 /* Get FW Mini Coredump template and store it */ 831 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 832 if (adapter->mdump.md_template == NULL || 833 adapter->fw_version > prev_fw_version) { 834 kfree(adapter->mdump.md_template); 835 adapter->mdump.md_template = NULL; 836 err = netxen_setup_minidump(adapter); 837 if (err) 838 dev_err(&adapter->pdev->dev, 839 "Failed to setup minidump rcode = %d\n", err); 840 } 841 } 842 843 if (adapter->portnum == 0) { 844 get_brd_name_by_type(adapter->ahw.board_type, brd_name); 845 846 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n", 847 module_name(THIS_MODULE), 848 brd_name, serial_num, adapter->ahw.revision_id); 849 } 850 851 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) { 852 adapter->driver_mismatch = 1; 853 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n", 854 fw_major, fw_minor, fw_build); 855 return; 856 } 857 858 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 859 i = NXRD32(adapter, NETXEN_SRE_MISC); 860 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0; 861 } 862 863 dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n", 864 fw_major, fw_minor, fw_build, 865 adapter->ahw.cut_through ? "cut-through" : "legacy"); 866 867 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222)) 868 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1); 869 870 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) { 871 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G; 872 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G; 873 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) { 874 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G; 875 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G; 876 } 877 878 adapter->msix_supported = 0; 879 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 880 adapter->msix_supported = !!use_msi_x; 881 adapter->rss_supported = !!use_msi_x; 882 } else { 883 u32 flashed_ver = 0; 884 netxen_rom_fast_read(adapter, 885 NX_FW_VERSION_OFFSET, (int *)&flashed_ver); 886 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver); 887 888 if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) { 889 switch (adapter->ahw.board_type) { 890 case NETXEN_BRDTYPE_P2_SB31_10G: 891 case NETXEN_BRDTYPE_P2_SB31_10G_CX4: 892 adapter->msix_supported = !!use_msi_x; 893 adapter->rss_supported = !!use_msi_x; 894 break; 895 default: 896 break; 897 } 898 } 899 } 900 901 adapter->num_txd = MAX_CMD_DESCRIPTORS; 902 903 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 904 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS; 905 adapter->max_rds_rings = 3; 906 } else { 907 adapter->num_lro_rxd = 0; 908 adapter->max_rds_rings = 2; 909 } 910 } 911 912 static int 913 netxen_start_firmware(struct netxen_adapter *adapter) 914 { 915 int val, err, first_boot; 916 struct pci_dev *pdev = adapter->pdev; 917 918 /* required for NX2031 dummy dma */ 919 err = nx_set_dma_mask(adapter); 920 if (err) 921 return err; 922 923 err = netxen_can_start_firmware(adapter); 924 925 if (err < 0) 926 return err; 927 928 if (!err) 929 goto wait_init; 930 931 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc)); 932 933 err = netxen_check_hw_init(adapter, first_boot); 934 if (err) { 935 dev_err(&pdev->dev, "error in init HW init sequence\n"); 936 return err; 937 } 938 939 netxen_request_firmware(adapter); 940 941 err = netxen_need_fw_reset(adapter); 942 if (err < 0) 943 goto err_out; 944 if (err == 0) 945 goto pcie_strap_init; 946 947 if (first_boot != 0x55555555) { 948 NXWR32(adapter, CRB_CMDPEG_STATE, 0); 949 netxen_pinit_from_rom(adapter); 950 msleep(1); 951 } 952 953 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555); 954 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0); 955 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0); 956 957 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 958 netxen_set_port_mode(adapter); 959 960 err = netxen_load_firmware(adapter); 961 if (err) 962 goto err_out; 963 964 netxen_release_firmware(adapter); 965 966 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 967 968 /* Initialize multicast addr pool owners */ 969 val = 0x7654; 970 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) 971 val |= 0x0f000000; 972 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val); 973 974 } 975 976 err = netxen_init_dummy_dma(adapter); 977 if (err) 978 goto err_out; 979 980 /* 981 * Tell the hardware our version number. 982 */ 983 val = (_NETXEN_NIC_LINUX_MAJOR << 16) 984 | ((_NETXEN_NIC_LINUX_MINOR << 8)) 985 | (_NETXEN_NIC_LINUX_SUBVERSION); 986 NXWR32(adapter, CRB_DRIVER_VERSION, val); 987 988 pcie_strap_init: 989 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 990 netxen_pcie_strap_init(adapter); 991 992 wait_init: 993 /* Handshake with the card before we register the devices. */ 994 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE); 995 if (err) { 996 netxen_free_dummy_dma(adapter); 997 goto err_out; 998 } 999 1000 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY); 1001 1002 nx_update_dma_mask(adapter); 1003 1004 netxen_check_options(adapter); 1005 1006 adapter->need_fw_reset = 0; 1007 1008 /* fall through and release firmware */ 1009 1010 err_out: 1011 netxen_release_firmware(adapter); 1012 return err; 1013 } 1014 1015 static int 1016 netxen_nic_request_irq(struct netxen_adapter *adapter) 1017 { 1018 irq_handler_t handler; 1019 struct nx_host_sds_ring *sds_ring; 1020 int err, ring; 1021 1022 unsigned long flags = 0; 1023 struct net_device *netdev = adapter->netdev; 1024 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 1025 1026 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) 1027 handler = netxen_msix_intr; 1028 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED) 1029 handler = netxen_msi_intr; 1030 else { 1031 flags |= IRQF_SHARED; 1032 handler = netxen_intr; 1033 } 1034 adapter->irq = netdev->irq; 1035 1036 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 1037 sds_ring = &recv_ctx->sds_rings[ring]; 1038 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring); 1039 err = request_irq(sds_ring->irq, handler, 1040 flags, sds_ring->name, sds_ring); 1041 if (err) 1042 return err; 1043 } 1044 1045 return 0; 1046 } 1047 1048 static void 1049 netxen_nic_free_irq(struct netxen_adapter *adapter) 1050 { 1051 int ring; 1052 struct nx_host_sds_ring *sds_ring; 1053 1054 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 1055 1056 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 1057 sds_ring = &recv_ctx->sds_rings[ring]; 1058 free_irq(sds_ring->irq, sds_ring); 1059 } 1060 } 1061 1062 static void 1063 netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter) 1064 { 1065 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT; 1066 adapter->coal.normal.data.rx_time_us = 1067 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US; 1068 adapter->coal.normal.data.rx_packets = 1069 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS; 1070 adapter->coal.normal.data.tx_time_us = 1071 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US; 1072 adapter->coal.normal.data.tx_packets = 1073 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS; 1074 } 1075 1076 /* with rtnl_lock */ 1077 static int 1078 __netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev) 1079 { 1080 int err; 1081 1082 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 1083 return -EIO; 1084 1085 err = adapter->init_port(adapter, adapter->physical_port); 1086 if (err) { 1087 printk(KERN_ERR "%s: Failed to initialize port %d\n", 1088 netxen_nic_driver_name, adapter->portnum); 1089 return err; 1090 } 1091 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 1092 adapter->macaddr_set(adapter, adapter->mac_addr); 1093 1094 adapter->set_multi(netdev); 1095 adapter->set_mtu(adapter, netdev->mtu); 1096 1097 adapter->ahw.linkup = 0; 1098 1099 if (adapter->max_sds_rings > 1) 1100 netxen_config_rss(adapter, 1); 1101 1102 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1103 netxen_config_intr_coalesce(adapter); 1104 1105 if (netdev->features & NETIF_F_LRO) 1106 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED); 1107 1108 netxen_napi_enable(adapter); 1109 1110 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION) 1111 netxen_linkevent_request(adapter, 1); 1112 else 1113 netxen_nic_set_link_parameters(adapter); 1114 1115 set_bit(__NX_DEV_UP, &adapter->state); 1116 return 0; 1117 } 1118 1119 /* Usage: During resume and firmware recovery module.*/ 1120 1121 static inline int 1122 netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev) 1123 { 1124 int err = 0; 1125 1126 rtnl_lock(); 1127 if (netif_running(netdev)) 1128 err = __netxen_nic_up(adapter, netdev); 1129 rtnl_unlock(); 1130 1131 return err; 1132 } 1133 1134 /* with rtnl_lock */ 1135 static void 1136 __netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) 1137 { 1138 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 1139 return; 1140 1141 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state)) 1142 return; 1143 1144 smp_mb(); 1145 spin_lock(&adapter->tx_clean_lock); 1146 netif_carrier_off(netdev); 1147 netif_tx_disable(netdev); 1148 1149 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION) 1150 netxen_linkevent_request(adapter, 0); 1151 1152 if (adapter->stop_port) 1153 adapter->stop_port(adapter); 1154 1155 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1156 netxen_p3_free_mac_list(adapter); 1157 1158 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE); 1159 1160 netxen_napi_disable(adapter); 1161 1162 netxen_release_tx_buffers(adapter); 1163 spin_unlock(&adapter->tx_clean_lock); 1164 } 1165 1166 /* Usage: During suspend and firmware recovery module */ 1167 1168 static inline void 1169 netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) 1170 { 1171 rtnl_lock(); 1172 if (netif_running(netdev)) 1173 __netxen_nic_down(adapter, netdev); 1174 rtnl_unlock(); 1175 1176 } 1177 1178 static int 1179 netxen_nic_attach(struct netxen_adapter *adapter) 1180 { 1181 struct net_device *netdev = adapter->netdev; 1182 struct pci_dev *pdev = adapter->pdev; 1183 int err, ring; 1184 struct nx_host_rds_ring *rds_ring; 1185 struct nx_host_tx_ring *tx_ring; 1186 u32 capab2; 1187 1188 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) 1189 return 0; 1190 1191 err = netxen_init_firmware(adapter); 1192 if (err) 1193 return err; 1194 1195 adapter->flags &= ~NETXEN_FW_MSS_CAP; 1196 if (adapter->capabilities & NX_FW_CAPABILITY_MORE_CAPS) { 1197 capab2 = NXRD32(adapter, CRB_FW_CAPABILITIES_2); 1198 if (capab2 & NX_FW_CAPABILITY_2_LRO_MAX_TCP_SEG) 1199 adapter->flags |= NETXEN_FW_MSS_CAP; 1200 } 1201 1202 err = netxen_napi_add(adapter, netdev); 1203 if (err) 1204 return err; 1205 1206 err = netxen_alloc_sw_resources(adapter); 1207 if (err) { 1208 printk(KERN_ERR "%s: Error in setting sw resources\n", 1209 netdev->name); 1210 return err; 1211 } 1212 1213 err = netxen_alloc_hw_resources(adapter); 1214 if (err) { 1215 printk(KERN_ERR "%s: Error in setting hw resources\n", 1216 netdev->name); 1217 goto err_out_free_sw; 1218 } 1219 1220 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 1221 tx_ring = adapter->tx_ring; 1222 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter, 1223 crb_cmd_producer[adapter->portnum]); 1224 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter, 1225 crb_cmd_consumer[adapter->portnum]); 1226 1227 tx_ring->producer = 0; 1228 tx_ring->sw_consumer = 0; 1229 1230 netxen_nic_update_cmd_producer(adapter, tx_ring); 1231 netxen_nic_update_cmd_consumer(adapter, tx_ring); 1232 } 1233 1234 for (ring = 0; ring < adapter->max_rds_rings; ring++) { 1235 rds_ring = &adapter->recv_ctx.rds_rings[ring]; 1236 netxen_post_rx_buffers(adapter, ring, rds_ring); 1237 } 1238 1239 err = netxen_nic_request_irq(adapter); 1240 if (err) { 1241 dev_err(&pdev->dev, "%s: failed to setup interrupt\n", 1242 netdev->name); 1243 goto err_out_free_rxbuf; 1244 } 1245 1246 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1247 netxen_nic_init_coalesce_defaults(adapter); 1248 1249 netxen_create_sysfs_entries(adapter); 1250 1251 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC; 1252 return 0; 1253 1254 err_out_free_rxbuf: 1255 netxen_release_rx_buffers(adapter); 1256 netxen_free_hw_resources(adapter); 1257 err_out_free_sw: 1258 netxen_free_sw_resources(adapter); 1259 return err; 1260 } 1261 1262 static void 1263 netxen_nic_detach(struct netxen_adapter *adapter) 1264 { 1265 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 1266 return; 1267 1268 netxen_remove_sysfs_entries(adapter); 1269 1270 netxen_free_hw_resources(adapter); 1271 netxen_release_rx_buffers(adapter); 1272 netxen_nic_free_irq(adapter); 1273 netxen_napi_del(adapter); 1274 netxen_free_sw_resources(adapter); 1275 1276 adapter->is_up = 0; 1277 } 1278 1279 int 1280 netxen_nic_reset_context(struct netxen_adapter *adapter) 1281 { 1282 int err = 0; 1283 struct net_device *netdev = adapter->netdev; 1284 1285 if (test_and_set_bit(__NX_RESETTING, &adapter->state)) 1286 return -EBUSY; 1287 1288 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { 1289 1290 netif_device_detach(netdev); 1291 1292 if (netif_running(netdev)) 1293 __netxen_nic_down(adapter, netdev); 1294 1295 netxen_nic_detach(adapter); 1296 1297 if (netif_running(netdev)) { 1298 err = netxen_nic_attach(adapter); 1299 if (!err) 1300 err = __netxen_nic_up(adapter, netdev); 1301 1302 if (err) 1303 goto done; 1304 } 1305 1306 netif_device_attach(netdev); 1307 } 1308 1309 done: 1310 clear_bit(__NX_RESETTING, &adapter->state); 1311 return err; 1312 } 1313 1314 static int 1315 netxen_setup_netdev(struct netxen_adapter *adapter, 1316 struct net_device *netdev) 1317 { 1318 int err = 0; 1319 struct pci_dev *pdev = adapter->pdev; 1320 1321 adapter->mc_enabled = 0; 1322 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1323 adapter->max_mc_count = 38; 1324 else 1325 adapter->max_mc_count = 16; 1326 1327 netdev->netdev_ops = &netxen_netdev_ops; 1328 netdev->watchdog_timeo = 5*HZ; 1329 1330 netxen_nic_change_mtu(netdev, netdev->mtu); 1331 1332 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops); 1333 1334 netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO | 1335 NETIF_F_RXCSUM; 1336 1337 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) 1338 netdev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6; 1339 1340 netdev->vlan_features |= netdev->hw_features; 1341 1342 if (adapter->pci_using_dac) { 1343 netdev->features |= NETIF_F_HIGHDMA; 1344 netdev->vlan_features |= NETIF_F_HIGHDMA; 1345 } 1346 1347 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX) 1348 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX; 1349 1350 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO) 1351 netdev->hw_features |= NETIF_F_LRO; 1352 1353 netdev->features |= netdev->hw_features; 1354 1355 netdev->irq = adapter->msix_entries[0].vector; 1356 1357 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task); 1358 1359 if (netxen_read_mac_addr(adapter)) 1360 dev_warn(&pdev->dev, "failed to read mac addr\n"); 1361 1362 netif_carrier_off(netdev); 1363 1364 err = register_netdev(netdev); 1365 if (err) { 1366 dev_err(&pdev->dev, "failed to register net device\n"); 1367 return err; 1368 } 1369 1370 return 0; 1371 } 1372 1373 #ifdef CONFIG_PCIEAER 1374 static void netxen_mask_aer_correctable(struct netxen_adapter *adapter) 1375 { 1376 struct pci_dev *pdev = adapter->pdev; 1377 struct pci_dev *root = pdev->bus->self; 1378 u32 aer_pos; 1379 1380 /* root bus? */ 1381 if (!root) 1382 return; 1383 1384 if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM && 1385 adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP) 1386 return; 1387 1388 if (pci_pcie_type(root) != PCI_EXP_TYPE_ROOT_PORT) 1389 return; 1390 1391 aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR); 1392 if (!aer_pos) 1393 return; 1394 1395 pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff); 1396 } 1397 #endif 1398 1399 static int 1400 netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 1401 { 1402 struct net_device *netdev = NULL; 1403 struct netxen_adapter *adapter = NULL; 1404 int i = 0, err; 1405 int pci_func_id = PCI_FUNC(pdev->devfn); 1406 uint8_t revision_id; 1407 u32 val; 1408 1409 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) { 1410 pr_warning("%s: chip revisions between 0x%x-0x%x " 1411 "will not be enabled.\n", 1412 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1); 1413 return -ENODEV; 1414 } 1415 1416 if ((err = pci_enable_device(pdev))) 1417 return err; 1418 1419 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { 1420 err = -ENODEV; 1421 goto err_out_disable_pdev; 1422 } 1423 1424 if ((err = pci_request_regions(pdev, netxen_nic_driver_name))) 1425 goto err_out_disable_pdev; 1426 1427 if (NX_IS_REVISION_P3(pdev->revision)) 1428 pci_enable_pcie_error_reporting(pdev); 1429 1430 pci_set_master(pdev); 1431 1432 netdev = alloc_etherdev(sizeof(struct netxen_adapter)); 1433 if(!netdev) { 1434 err = -ENOMEM; 1435 goto err_out_free_res; 1436 } 1437 1438 SET_NETDEV_DEV(netdev, &pdev->dev); 1439 1440 adapter = netdev_priv(netdev); 1441 adapter->netdev = netdev; 1442 adapter->pdev = pdev; 1443 adapter->ahw.pci_func = pci_func_id; 1444 1445 revision_id = pdev->revision; 1446 adapter->ahw.revision_id = revision_id; 1447 1448 rwlock_init(&adapter->ahw.crb_lock); 1449 spin_lock_init(&adapter->ahw.mem_lock); 1450 1451 spin_lock_init(&adapter->tx_clean_lock); 1452 INIT_LIST_HEAD(&adapter->mac_list); 1453 INIT_LIST_HEAD(&adapter->ip_list); 1454 1455 err = netxen_setup_pci_map(adapter); 1456 if (err) 1457 goto err_out_free_netdev; 1458 1459 /* This will be reset for mezz cards */ 1460 adapter->portnum = pci_func_id; 1461 1462 err = netxen_nic_get_board_info(adapter); 1463 if (err) { 1464 dev_err(&pdev->dev, "Error getting board config info.\n"); 1465 goto err_out_iounmap; 1466 } 1467 1468 #ifdef CONFIG_PCIEAER 1469 netxen_mask_aer_correctable(adapter); 1470 #endif 1471 1472 /* Mezz cards have PCI function 0,2,3 enabled */ 1473 switch (adapter->ahw.board_type) { 1474 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ: 1475 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ: 1476 if (pci_func_id >= 2) 1477 adapter->portnum = pci_func_id - 2; 1478 break; 1479 default: 1480 break; 1481 } 1482 1483 err = netxen_check_flash_fw_compatibility(adapter); 1484 if (err) 1485 goto err_out_iounmap; 1486 1487 if (adapter->portnum == 0) { 1488 val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 1489 if (val != 0xffffffff && val != 0) { 1490 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0); 1491 adapter->need_fw_reset = 1; 1492 } 1493 } 1494 1495 err = netxen_start_firmware(adapter); 1496 if (err) 1497 goto err_out_decr_ref; 1498 1499 /* 1500 * See if the firmware gave us a virtual-physical port mapping. 1501 */ 1502 adapter->physical_port = adapter->portnum; 1503 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 1504 i = NXRD32(adapter, CRB_V2P(adapter->portnum)); 1505 if (i != 0x55555555) 1506 adapter->physical_port = i; 1507 } 1508 1509 netxen_nic_clear_stats(adapter); 1510 1511 netxen_setup_intr(adapter); 1512 1513 err = netxen_setup_netdev(adapter, netdev); 1514 if (err) 1515 goto err_out_disable_msi; 1516 1517 pci_set_drvdata(pdev, adapter); 1518 1519 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 1520 1521 switch (adapter->ahw.port_type) { 1522 case NETXEN_NIC_GBE: 1523 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n", 1524 adapter->netdev->name); 1525 break; 1526 case NETXEN_NIC_XGBE: 1527 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n", 1528 adapter->netdev->name); 1529 break; 1530 } 1531 1532 netxen_create_diag_entries(adapter); 1533 1534 return 0; 1535 1536 err_out_disable_msi: 1537 netxen_teardown_intr(adapter); 1538 1539 netxen_free_dummy_dma(adapter); 1540 1541 err_out_decr_ref: 1542 nx_decr_dev_ref_cnt(adapter); 1543 1544 err_out_iounmap: 1545 netxen_cleanup_pci_map(adapter); 1546 1547 err_out_free_netdev: 1548 free_netdev(netdev); 1549 1550 err_out_free_res: 1551 pci_release_regions(pdev); 1552 1553 err_out_disable_pdev: 1554 pci_set_drvdata(pdev, NULL); 1555 pci_disable_device(pdev); 1556 return err; 1557 } 1558 1559 static 1560 void netxen_cleanup_minidump(struct netxen_adapter *adapter) 1561 { 1562 kfree(adapter->mdump.md_template); 1563 adapter->mdump.md_template = NULL; 1564 1565 if (adapter->mdump.md_capture_buff) { 1566 vfree(adapter->mdump.md_capture_buff); 1567 adapter->mdump.md_capture_buff = NULL; 1568 } 1569 } 1570 1571 static void netxen_nic_remove(struct pci_dev *pdev) 1572 { 1573 struct netxen_adapter *adapter; 1574 struct net_device *netdev; 1575 1576 adapter = pci_get_drvdata(pdev); 1577 if (adapter == NULL) 1578 return; 1579 1580 netdev = adapter->netdev; 1581 1582 netxen_cancel_fw_work(adapter); 1583 1584 unregister_netdev(netdev); 1585 1586 cancel_work_sync(&adapter->tx_timeout_task); 1587 1588 netxen_free_ip_list(adapter, false); 1589 netxen_nic_detach(adapter); 1590 1591 nx_decr_dev_ref_cnt(adapter); 1592 1593 if (adapter->portnum == 0) 1594 netxen_free_dummy_dma(adapter); 1595 1596 clear_bit(__NX_RESETTING, &adapter->state); 1597 1598 netxen_teardown_intr(adapter); 1599 1600 netxen_remove_diag_entries(adapter); 1601 1602 netxen_cleanup_pci_map(adapter); 1603 1604 netxen_release_firmware(adapter); 1605 1606 if (NX_IS_REVISION_P3(pdev->revision)) { 1607 netxen_cleanup_minidump(adapter); 1608 pci_disable_pcie_error_reporting(pdev); 1609 } 1610 1611 pci_release_regions(pdev); 1612 pci_disable_device(pdev); 1613 pci_set_drvdata(pdev, NULL); 1614 1615 free_netdev(netdev); 1616 } 1617 1618 static void netxen_nic_detach_func(struct netxen_adapter *adapter) 1619 { 1620 struct net_device *netdev = adapter->netdev; 1621 1622 netif_device_detach(netdev); 1623 1624 netxen_cancel_fw_work(adapter); 1625 1626 if (netif_running(netdev)) 1627 netxen_nic_down(adapter, netdev); 1628 1629 cancel_work_sync(&adapter->tx_timeout_task); 1630 1631 netxen_nic_detach(adapter); 1632 1633 if (adapter->portnum == 0) 1634 netxen_free_dummy_dma(adapter); 1635 1636 nx_decr_dev_ref_cnt(adapter); 1637 1638 clear_bit(__NX_RESETTING, &adapter->state); 1639 } 1640 1641 static int netxen_nic_attach_func(struct pci_dev *pdev) 1642 { 1643 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1644 struct net_device *netdev = adapter->netdev; 1645 int err; 1646 1647 err = pci_enable_device(pdev); 1648 if (err) 1649 return err; 1650 1651 pci_set_power_state(pdev, PCI_D0); 1652 pci_set_master(pdev); 1653 pci_restore_state(pdev); 1654 1655 adapter->ahw.crb_win = -1; 1656 adapter->ahw.ocm_win = -1; 1657 1658 err = netxen_start_firmware(adapter); 1659 if (err) { 1660 dev_err(&pdev->dev, "failed to start firmware\n"); 1661 return err; 1662 } 1663 1664 if (netif_running(netdev)) { 1665 err = netxen_nic_attach(adapter); 1666 if (err) 1667 goto err_out; 1668 1669 err = netxen_nic_up(adapter, netdev); 1670 if (err) 1671 goto err_out_detach; 1672 1673 netxen_restore_indev_addr(netdev, NETDEV_UP); 1674 } 1675 1676 netif_device_attach(netdev); 1677 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 1678 return 0; 1679 1680 err_out_detach: 1681 netxen_nic_detach(adapter); 1682 err_out: 1683 nx_decr_dev_ref_cnt(adapter); 1684 return err; 1685 } 1686 1687 static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev, 1688 pci_channel_state_t state) 1689 { 1690 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1691 1692 if (state == pci_channel_io_perm_failure) 1693 return PCI_ERS_RESULT_DISCONNECT; 1694 1695 if (nx_dev_request_aer(adapter)) 1696 return PCI_ERS_RESULT_RECOVERED; 1697 1698 netxen_nic_detach_func(adapter); 1699 1700 pci_disable_device(pdev); 1701 1702 return PCI_ERS_RESULT_NEED_RESET; 1703 } 1704 1705 static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev) 1706 { 1707 int err = 0; 1708 1709 err = netxen_nic_attach_func(pdev); 1710 1711 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED; 1712 } 1713 1714 static void netxen_io_resume(struct pci_dev *pdev) 1715 { 1716 pci_cleanup_aer_uncorrect_error_status(pdev); 1717 } 1718 1719 static void netxen_nic_shutdown(struct pci_dev *pdev) 1720 { 1721 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1722 1723 netxen_nic_detach_func(adapter); 1724 1725 if (pci_save_state(pdev)) 1726 return; 1727 1728 if (netxen_nic_wol_supported(adapter)) { 1729 pci_enable_wake(pdev, PCI_D3cold, 1); 1730 pci_enable_wake(pdev, PCI_D3hot, 1); 1731 } 1732 1733 pci_disable_device(pdev); 1734 } 1735 1736 #ifdef CONFIG_PM 1737 static int 1738 netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state) 1739 { 1740 struct netxen_adapter *adapter = pci_get_drvdata(pdev); 1741 int retval; 1742 1743 netxen_nic_detach_func(adapter); 1744 1745 retval = pci_save_state(pdev); 1746 if (retval) 1747 return retval; 1748 1749 if (netxen_nic_wol_supported(adapter)) { 1750 pci_enable_wake(pdev, PCI_D3cold, 1); 1751 pci_enable_wake(pdev, PCI_D3hot, 1); 1752 } 1753 1754 pci_disable_device(pdev); 1755 pci_set_power_state(pdev, pci_choose_state(pdev, state)); 1756 1757 return 0; 1758 } 1759 1760 static int 1761 netxen_nic_resume(struct pci_dev *pdev) 1762 { 1763 return netxen_nic_attach_func(pdev); 1764 } 1765 #endif 1766 1767 static int netxen_nic_open(struct net_device *netdev) 1768 { 1769 struct netxen_adapter *adapter = netdev_priv(netdev); 1770 int err = 0; 1771 1772 if (adapter->driver_mismatch) 1773 return -EIO; 1774 1775 err = netxen_nic_attach(adapter); 1776 if (err) 1777 return err; 1778 1779 err = __netxen_nic_up(adapter, netdev); 1780 if (err) 1781 goto err_out; 1782 1783 netif_start_queue(netdev); 1784 1785 return 0; 1786 1787 err_out: 1788 netxen_nic_detach(adapter); 1789 return err; 1790 } 1791 1792 /* 1793 * netxen_nic_close - Disables a network interface entry point 1794 */ 1795 static int netxen_nic_close(struct net_device *netdev) 1796 { 1797 struct netxen_adapter *adapter = netdev_priv(netdev); 1798 1799 __netxen_nic_down(adapter, netdev); 1800 return 0; 1801 } 1802 1803 static void 1804 netxen_tso_check(struct net_device *netdev, 1805 struct nx_host_tx_ring *tx_ring, 1806 struct cmd_desc_type0 *first_desc, 1807 struct sk_buff *skb) 1808 { 1809 u8 opcode = TX_ETHER_PKT; 1810 __be16 protocol = skb->protocol; 1811 u16 flags = 0, vid = 0; 1812 u32 producer; 1813 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0; 1814 struct cmd_desc_type0 *hwdesc; 1815 struct vlan_ethhdr *vh; 1816 1817 if (protocol == cpu_to_be16(ETH_P_8021Q)) { 1818 1819 vh = (struct vlan_ethhdr *)skb->data; 1820 protocol = vh->h_vlan_encapsulated_proto; 1821 flags = FLAGS_VLAN_TAGGED; 1822 1823 } else if (vlan_tx_tag_present(skb)) { 1824 flags = FLAGS_VLAN_OOB; 1825 vid = vlan_tx_tag_get(skb); 1826 netxen_set_tx_vlan_tci(first_desc, vid); 1827 vlan_oob = 1; 1828 } 1829 1830 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) && 1831 skb_shinfo(skb)->gso_size > 0) { 1832 1833 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); 1834 1835 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); 1836 first_desc->total_hdr_length = hdr_len; 1837 if (vlan_oob) { 1838 first_desc->total_hdr_length += VLAN_HLEN; 1839 first_desc->tcp_hdr_offset = VLAN_HLEN; 1840 first_desc->ip_hdr_offset = VLAN_HLEN; 1841 /* Only in case of TSO on vlan device */ 1842 flags |= FLAGS_VLAN_TAGGED; 1843 } 1844 1845 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ? 1846 TX_TCP_LSO6 : TX_TCP_LSO; 1847 tso = 1; 1848 1849 } else if (skb->ip_summed == CHECKSUM_PARTIAL) { 1850 u8 l4proto; 1851 1852 if (protocol == cpu_to_be16(ETH_P_IP)) { 1853 l4proto = ip_hdr(skb)->protocol; 1854 1855 if (l4proto == IPPROTO_TCP) 1856 opcode = TX_TCP_PKT; 1857 else if(l4proto == IPPROTO_UDP) 1858 opcode = TX_UDP_PKT; 1859 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) { 1860 l4proto = ipv6_hdr(skb)->nexthdr; 1861 1862 if (l4proto == IPPROTO_TCP) 1863 opcode = TX_TCPV6_PKT; 1864 else if(l4proto == IPPROTO_UDP) 1865 opcode = TX_UDPV6_PKT; 1866 } 1867 } 1868 1869 first_desc->tcp_hdr_offset += skb_transport_offset(skb); 1870 first_desc->ip_hdr_offset += skb_network_offset(skb); 1871 netxen_set_tx_flags_opcode(first_desc, flags, opcode); 1872 1873 if (!tso) 1874 return; 1875 1876 /* For LSO, we need to copy the MAC/IP/TCP headers into 1877 * the descriptor ring 1878 */ 1879 producer = tx_ring->producer; 1880 copied = 0; 1881 offset = 2; 1882 1883 if (vlan_oob) { 1884 /* Create a TSO vlan header template for firmware */ 1885 1886 hwdesc = &tx_ring->desc_head[producer]; 1887 tx_ring->cmd_buf_arr[producer].skb = NULL; 1888 1889 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset, 1890 hdr_len + VLAN_HLEN); 1891 1892 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2); 1893 skb_copy_from_linear_data(skb, vh, 12); 1894 vh->h_vlan_proto = htons(ETH_P_8021Q); 1895 vh->h_vlan_TCI = htons(vid); 1896 skb_copy_from_linear_data_offset(skb, 12, 1897 (char *)vh + 16, copy_len - 16); 1898 1899 copied = copy_len - VLAN_HLEN; 1900 offset = 0; 1901 1902 producer = get_next_index(producer, tx_ring->num_desc); 1903 } 1904 1905 while (copied < hdr_len) { 1906 1907 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset, 1908 (hdr_len - copied)); 1909 1910 hwdesc = &tx_ring->desc_head[producer]; 1911 tx_ring->cmd_buf_arr[producer].skb = NULL; 1912 1913 skb_copy_from_linear_data_offset(skb, copied, 1914 (char *)hwdesc + offset, copy_len); 1915 1916 copied += copy_len; 1917 offset = 0; 1918 1919 producer = get_next_index(producer, tx_ring->num_desc); 1920 } 1921 1922 tx_ring->producer = producer; 1923 barrier(); 1924 } 1925 1926 static int 1927 netxen_map_tx_skb(struct pci_dev *pdev, 1928 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf) 1929 { 1930 struct netxen_skb_frag *nf; 1931 struct skb_frag_struct *frag; 1932 int i, nr_frags; 1933 dma_addr_t map; 1934 1935 nr_frags = skb_shinfo(skb)->nr_frags; 1936 nf = &pbuf->frag_array[0]; 1937 1938 map = pci_map_single(pdev, skb->data, 1939 skb_headlen(skb), PCI_DMA_TODEVICE); 1940 if (pci_dma_mapping_error(pdev, map)) 1941 goto out_err; 1942 1943 nf->dma = map; 1944 nf->length = skb_headlen(skb); 1945 1946 for (i = 0; i < nr_frags; i++) { 1947 frag = &skb_shinfo(skb)->frags[i]; 1948 nf = &pbuf->frag_array[i+1]; 1949 1950 map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag), 1951 DMA_TO_DEVICE); 1952 if (dma_mapping_error(&pdev->dev, map)) 1953 goto unwind; 1954 1955 nf->dma = map; 1956 nf->length = skb_frag_size(frag); 1957 } 1958 1959 return 0; 1960 1961 unwind: 1962 while (--i >= 0) { 1963 nf = &pbuf->frag_array[i+1]; 1964 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE); 1965 nf->dma = 0ULL; 1966 } 1967 1968 nf = &pbuf->frag_array[0]; 1969 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE); 1970 nf->dma = 0ULL; 1971 1972 out_err: 1973 return -ENOMEM; 1974 } 1975 1976 static inline void 1977 netxen_clear_cmddesc(u64 *desc) 1978 { 1979 desc[0] = 0ULL; 1980 desc[2] = 0ULL; 1981 } 1982 1983 static netdev_tx_t 1984 netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) 1985 { 1986 struct netxen_adapter *adapter = netdev_priv(netdev); 1987 struct nx_host_tx_ring *tx_ring = adapter->tx_ring; 1988 struct netxen_cmd_buffer *pbuf; 1989 struct netxen_skb_frag *buffrag; 1990 struct cmd_desc_type0 *hwdesc, *first_desc; 1991 struct pci_dev *pdev; 1992 int i, k; 1993 int delta = 0; 1994 struct skb_frag_struct *frag; 1995 1996 u32 producer; 1997 int frag_count, no_of_desc; 1998 u32 num_txd = tx_ring->num_desc; 1999 2000 frag_count = skb_shinfo(skb)->nr_frags + 1; 2001 2002 /* 14 frags supported for normal packet and 2003 * 32 frags supported for TSO packet 2004 */ 2005 if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) { 2006 2007 for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) { 2008 frag = &skb_shinfo(skb)->frags[i]; 2009 delta += skb_frag_size(frag); 2010 } 2011 2012 if (!__pskb_pull_tail(skb, delta)) 2013 goto drop_packet; 2014 2015 frag_count = 1 + skb_shinfo(skb)->nr_frags; 2016 } 2017 /* 4 fragments per cmd des */ 2018 no_of_desc = (frag_count + 3) >> 2; 2019 2020 if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) { 2021 netif_stop_queue(netdev); 2022 smp_mb(); 2023 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH) 2024 netif_start_queue(netdev); 2025 else 2026 return NETDEV_TX_BUSY; 2027 } 2028 2029 producer = tx_ring->producer; 2030 pbuf = &tx_ring->cmd_buf_arr[producer]; 2031 2032 pdev = adapter->pdev; 2033 2034 if (netxen_map_tx_skb(pdev, skb, pbuf)) 2035 goto drop_packet; 2036 2037 pbuf->skb = skb; 2038 pbuf->frag_count = frag_count; 2039 2040 first_desc = hwdesc = &tx_ring->desc_head[producer]; 2041 netxen_clear_cmddesc((u64 *)hwdesc); 2042 2043 netxen_set_tx_frags_len(first_desc, frag_count, skb->len); 2044 netxen_set_tx_port(first_desc, adapter->portnum); 2045 2046 for (i = 0; i < frag_count; i++) { 2047 2048 k = i % 4; 2049 2050 if ((k == 0) && (i > 0)) { 2051 /* move to next desc.*/ 2052 producer = get_next_index(producer, num_txd); 2053 hwdesc = &tx_ring->desc_head[producer]; 2054 netxen_clear_cmddesc((u64 *)hwdesc); 2055 tx_ring->cmd_buf_arr[producer].skb = NULL; 2056 } 2057 2058 buffrag = &pbuf->frag_array[i]; 2059 2060 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length); 2061 switch (k) { 2062 case 0: 2063 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma); 2064 break; 2065 case 1: 2066 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma); 2067 break; 2068 case 2: 2069 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma); 2070 break; 2071 case 3: 2072 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma); 2073 break; 2074 } 2075 } 2076 2077 tx_ring->producer = get_next_index(producer, num_txd); 2078 2079 netxen_tso_check(netdev, tx_ring, first_desc, skb); 2080 2081 adapter->stats.txbytes += skb->len; 2082 adapter->stats.xmitcalled++; 2083 2084 netxen_nic_update_cmd_producer(adapter, tx_ring); 2085 2086 return NETDEV_TX_OK; 2087 2088 drop_packet: 2089 adapter->stats.txdropped++; 2090 dev_kfree_skb_any(skb); 2091 return NETDEV_TX_OK; 2092 } 2093 2094 static int netxen_nic_check_temp(struct netxen_adapter *adapter) 2095 { 2096 struct net_device *netdev = adapter->netdev; 2097 uint32_t temp, temp_state, temp_val; 2098 int rv = 0; 2099 2100 temp = NXRD32(adapter, CRB_TEMP_STATE); 2101 2102 temp_state = nx_get_temp_state(temp); 2103 temp_val = nx_get_temp_val(temp); 2104 2105 if (temp_state == NX_TEMP_PANIC) { 2106 printk(KERN_ALERT 2107 "%s: Device temperature %d degrees C exceeds" 2108 " maximum allowed. Hardware has been shut down.\n", 2109 netdev->name, temp_val); 2110 rv = 1; 2111 } else if (temp_state == NX_TEMP_WARN) { 2112 if (adapter->temp == NX_TEMP_NORMAL) { 2113 printk(KERN_ALERT 2114 "%s: Device temperature %d degrees C " 2115 "exceeds operating range." 2116 " Immediate action needed.\n", 2117 netdev->name, temp_val); 2118 } 2119 } else { 2120 if (adapter->temp == NX_TEMP_WARN) { 2121 printk(KERN_INFO 2122 "%s: Device temperature is now %d degrees C" 2123 " in normal range.\n", netdev->name, 2124 temp_val); 2125 } 2126 } 2127 adapter->temp = temp_state; 2128 return rv; 2129 } 2130 2131 void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup) 2132 { 2133 struct net_device *netdev = adapter->netdev; 2134 2135 if (adapter->ahw.linkup && !linkup) { 2136 printk(KERN_INFO "%s: %s NIC Link is down\n", 2137 netxen_nic_driver_name, netdev->name); 2138 adapter->ahw.linkup = 0; 2139 if (netif_running(netdev)) { 2140 netif_carrier_off(netdev); 2141 netif_stop_queue(netdev); 2142 } 2143 adapter->link_changed = !adapter->has_link_events; 2144 } else if (!adapter->ahw.linkup && linkup) { 2145 printk(KERN_INFO "%s: %s NIC Link is up\n", 2146 netxen_nic_driver_name, netdev->name); 2147 adapter->ahw.linkup = 1; 2148 if (netif_running(netdev)) { 2149 netif_carrier_on(netdev); 2150 netif_wake_queue(netdev); 2151 } 2152 adapter->link_changed = !adapter->has_link_events; 2153 } 2154 } 2155 2156 static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter) 2157 { 2158 u32 val, port, linkup; 2159 2160 port = adapter->physical_port; 2161 2162 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 2163 val = NXRD32(adapter, CRB_XG_STATE_P3); 2164 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val); 2165 linkup = (val == XG_LINK_UP_P3); 2166 } else { 2167 val = NXRD32(adapter, CRB_XG_STATE); 2168 val = (val >> port*8) & 0xff; 2169 linkup = (val == XG_LINK_UP); 2170 } 2171 2172 netxen_advert_link_change(adapter, linkup); 2173 } 2174 2175 static void netxen_tx_timeout(struct net_device *netdev) 2176 { 2177 struct netxen_adapter *adapter = netdev_priv(netdev); 2178 2179 if (test_bit(__NX_RESETTING, &adapter->state)) 2180 return; 2181 2182 dev_err(&netdev->dev, "transmit timeout, resetting.\n"); 2183 schedule_work(&adapter->tx_timeout_task); 2184 } 2185 2186 static void netxen_tx_timeout_task(struct work_struct *work) 2187 { 2188 struct netxen_adapter *adapter = 2189 container_of(work, struct netxen_adapter, tx_timeout_task); 2190 2191 if (!netif_running(adapter->netdev)) 2192 return; 2193 2194 if (test_and_set_bit(__NX_RESETTING, &adapter->state)) 2195 return; 2196 2197 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS) 2198 goto request_reset; 2199 2200 rtnl_lock(); 2201 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { 2202 /* try to scrub interrupt */ 2203 netxen_napi_disable(adapter); 2204 2205 netxen_napi_enable(adapter); 2206 2207 netif_wake_queue(adapter->netdev); 2208 2209 clear_bit(__NX_RESETTING, &adapter->state); 2210 } else { 2211 clear_bit(__NX_RESETTING, &adapter->state); 2212 if (netxen_nic_reset_context(adapter)) { 2213 rtnl_unlock(); 2214 goto request_reset; 2215 } 2216 } 2217 adapter->netdev->trans_start = jiffies; 2218 rtnl_unlock(); 2219 return; 2220 2221 request_reset: 2222 adapter->need_fw_reset = 1; 2223 clear_bit(__NX_RESETTING, &adapter->state); 2224 } 2225 2226 static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *netdev, 2227 struct rtnl_link_stats64 *stats) 2228 { 2229 struct netxen_adapter *adapter = netdev_priv(netdev); 2230 2231 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts; 2232 stats->tx_packets = adapter->stats.xmitfinished; 2233 stats->rx_bytes = adapter->stats.rxbytes; 2234 stats->tx_bytes = adapter->stats.txbytes; 2235 stats->rx_dropped = adapter->stats.rxdropped; 2236 stats->tx_dropped = adapter->stats.txdropped; 2237 2238 return stats; 2239 } 2240 2241 static irqreturn_t netxen_intr(int irq, void *data) 2242 { 2243 struct nx_host_sds_ring *sds_ring = data; 2244 struct netxen_adapter *adapter = sds_ring->adapter; 2245 u32 status = 0; 2246 2247 status = readl(adapter->isr_int_vec); 2248 2249 if (!(status & adapter->int_vec_bit)) 2250 return IRQ_NONE; 2251 2252 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { 2253 /* check interrupt state machine, to be sure */ 2254 status = readl(adapter->crb_int_state_reg); 2255 if (!ISR_LEGACY_INT_TRIGGERED(status)) 2256 return IRQ_NONE; 2257 2258 } else { 2259 unsigned long our_int = 0; 2260 2261 our_int = readl(adapter->crb_int_state_reg); 2262 2263 /* not our interrupt */ 2264 if (!test_and_clear_bit((7 + adapter->portnum), &our_int)) 2265 return IRQ_NONE; 2266 2267 /* claim interrupt */ 2268 writel((our_int & 0xffffffff), adapter->crb_int_state_reg); 2269 2270 /* clear interrupt */ 2271 netxen_nic_disable_int(sds_ring); 2272 } 2273 2274 writel(0xffffffff, adapter->tgt_status_reg); 2275 /* read twice to ensure write is flushed */ 2276 readl(adapter->isr_int_vec); 2277 readl(adapter->isr_int_vec); 2278 2279 napi_schedule(&sds_ring->napi); 2280 2281 return IRQ_HANDLED; 2282 } 2283 2284 static irqreturn_t netxen_msi_intr(int irq, void *data) 2285 { 2286 struct nx_host_sds_ring *sds_ring = data; 2287 struct netxen_adapter *adapter = sds_ring->adapter; 2288 2289 /* clear interrupt */ 2290 writel(0xffffffff, adapter->tgt_status_reg); 2291 2292 napi_schedule(&sds_ring->napi); 2293 return IRQ_HANDLED; 2294 } 2295 2296 static irqreturn_t netxen_msix_intr(int irq, void *data) 2297 { 2298 struct nx_host_sds_ring *sds_ring = data; 2299 2300 napi_schedule(&sds_ring->napi); 2301 return IRQ_HANDLED; 2302 } 2303 2304 static int netxen_nic_poll(struct napi_struct *napi, int budget) 2305 { 2306 struct nx_host_sds_ring *sds_ring = 2307 container_of(napi, struct nx_host_sds_ring, napi); 2308 2309 struct netxen_adapter *adapter = sds_ring->adapter; 2310 2311 int tx_complete; 2312 int work_done; 2313 2314 tx_complete = netxen_process_cmd_ring(adapter); 2315 2316 work_done = netxen_process_rcv_ring(sds_ring, budget); 2317 2318 if ((work_done < budget) && tx_complete) { 2319 napi_complete(&sds_ring->napi); 2320 if (test_bit(__NX_DEV_UP, &adapter->state)) 2321 netxen_nic_enable_int(sds_ring); 2322 } 2323 2324 return work_done; 2325 } 2326 2327 #ifdef CONFIG_NET_POLL_CONTROLLER 2328 static void netxen_nic_poll_controller(struct net_device *netdev) 2329 { 2330 int ring; 2331 struct nx_host_sds_ring *sds_ring; 2332 struct netxen_adapter *adapter = netdev_priv(netdev); 2333 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; 2334 2335 disable_irq(adapter->irq); 2336 for (ring = 0; ring < adapter->max_sds_rings; ring++) { 2337 sds_ring = &recv_ctx->sds_rings[ring]; 2338 netxen_intr(adapter->irq, sds_ring); 2339 } 2340 enable_irq(adapter->irq); 2341 } 2342 #endif 2343 2344 static int 2345 nx_incr_dev_ref_cnt(struct netxen_adapter *adapter) 2346 { 2347 int count; 2348 if (netxen_api_lock(adapter)) 2349 return -EIO; 2350 2351 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2352 2353 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count); 2354 2355 netxen_api_unlock(adapter); 2356 return count; 2357 } 2358 2359 static int 2360 nx_decr_dev_ref_cnt(struct netxen_adapter *adapter) 2361 { 2362 int count, state; 2363 if (netxen_api_lock(adapter)) 2364 return -EIO; 2365 2366 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2367 WARN_ON(count == 0); 2368 2369 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count); 2370 state = NXRD32(adapter, NX_CRB_DEV_STATE); 2371 2372 if (count == 0 && state != NX_DEV_FAILED) 2373 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD); 2374 2375 netxen_api_unlock(adapter); 2376 return count; 2377 } 2378 2379 static int 2380 nx_dev_request_aer(struct netxen_adapter *adapter) 2381 { 2382 u32 state; 2383 int ret = -EINVAL; 2384 2385 if (netxen_api_lock(adapter)) 2386 return ret; 2387 2388 state = NXRD32(adapter, NX_CRB_DEV_STATE); 2389 2390 if (state == NX_DEV_NEED_AER) 2391 ret = 0; 2392 else if (state == NX_DEV_READY) { 2393 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER); 2394 ret = 0; 2395 } 2396 2397 netxen_api_unlock(adapter); 2398 return ret; 2399 } 2400 2401 int 2402 nx_dev_request_reset(struct netxen_adapter *adapter) 2403 { 2404 u32 state; 2405 int ret = -EINVAL; 2406 2407 if (netxen_api_lock(adapter)) 2408 return ret; 2409 2410 state = NXRD32(adapter, NX_CRB_DEV_STATE); 2411 2412 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) 2413 ret = 0; 2414 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) { 2415 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET); 2416 adapter->flags |= NETXEN_FW_RESET_OWNER; 2417 ret = 0; 2418 } 2419 2420 netxen_api_unlock(adapter); 2421 2422 return ret; 2423 } 2424 2425 static int 2426 netxen_can_start_firmware(struct netxen_adapter *adapter) 2427 { 2428 int count; 2429 int can_start = 0; 2430 2431 if (netxen_api_lock(adapter)) { 2432 nx_incr_dev_ref_cnt(adapter); 2433 return -1; 2434 } 2435 2436 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2437 2438 if ((count < 0) || (count >= NX_MAX_PCI_FUNC)) 2439 count = 0; 2440 2441 if (count == 0) { 2442 can_start = 1; 2443 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING); 2444 } 2445 2446 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count); 2447 2448 netxen_api_unlock(adapter); 2449 2450 return can_start; 2451 } 2452 2453 static void 2454 netxen_schedule_work(struct netxen_adapter *adapter, 2455 work_func_t func, int delay) 2456 { 2457 INIT_DELAYED_WORK(&adapter->fw_work, func); 2458 schedule_delayed_work(&adapter->fw_work, delay); 2459 } 2460 2461 static void 2462 netxen_cancel_fw_work(struct netxen_adapter *adapter) 2463 { 2464 while (test_and_set_bit(__NX_RESETTING, &adapter->state)) 2465 msleep(10); 2466 2467 cancel_delayed_work_sync(&adapter->fw_work); 2468 } 2469 2470 static void 2471 netxen_attach_work(struct work_struct *work) 2472 { 2473 struct netxen_adapter *adapter = container_of(work, 2474 struct netxen_adapter, fw_work.work); 2475 struct net_device *netdev = adapter->netdev; 2476 int err = 0; 2477 2478 if (netif_running(netdev)) { 2479 err = netxen_nic_attach(adapter); 2480 if (err) 2481 goto done; 2482 2483 err = netxen_nic_up(adapter, netdev); 2484 if (err) { 2485 netxen_nic_detach(adapter); 2486 goto done; 2487 } 2488 2489 netxen_restore_indev_addr(netdev, NETDEV_UP); 2490 } 2491 2492 netif_device_attach(netdev); 2493 2494 done: 2495 adapter->fw_fail_cnt = 0; 2496 clear_bit(__NX_RESETTING, &adapter->state); 2497 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 2498 } 2499 2500 static void 2501 netxen_fwinit_work(struct work_struct *work) 2502 { 2503 struct netxen_adapter *adapter = container_of(work, 2504 struct netxen_adapter, fw_work.work); 2505 int dev_state; 2506 int count; 2507 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE); 2508 if (adapter->flags & NETXEN_FW_RESET_OWNER) { 2509 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2510 WARN_ON(count == 0); 2511 if (count == 1) { 2512 if (adapter->mdump.md_enabled) { 2513 rtnl_lock(); 2514 netxen_dump_fw(adapter); 2515 rtnl_unlock(); 2516 } 2517 adapter->flags &= ~NETXEN_FW_RESET_OWNER; 2518 if (netxen_api_lock(adapter)) { 2519 clear_bit(__NX_RESETTING, &adapter->state); 2520 NXWR32(adapter, NX_CRB_DEV_STATE, 2521 NX_DEV_FAILED); 2522 return; 2523 } 2524 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); 2525 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count); 2526 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD); 2527 dev_state = NX_DEV_COLD; 2528 netxen_api_unlock(adapter); 2529 } 2530 } 2531 2532 switch (dev_state) { 2533 case NX_DEV_COLD: 2534 case NX_DEV_READY: 2535 if (!netxen_start_firmware(adapter)) { 2536 netxen_schedule_work(adapter, netxen_attach_work, 0); 2537 return; 2538 } 2539 break; 2540 2541 case NX_DEV_NEED_RESET: 2542 case NX_DEV_INITALIZING: 2543 netxen_schedule_work(adapter, 2544 netxen_fwinit_work, 2 * FW_POLL_DELAY); 2545 return; 2546 2547 case NX_DEV_FAILED: 2548 default: 2549 nx_incr_dev_ref_cnt(adapter); 2550 break; 2551 } 2552 2553 if (netxen_api_lock(adapter)) { 2554 clear_bit(__NX_RESETTING, &adapter->state); 2555 return; 2556 } 2557 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_FAILED); 2558 netxen_api_unlock(adapter); 2559 dev_err(&adapter->pdev->dev, "%s: Device initialization Failed\n", 2560 adapter->netdev->name); 2561 2562 clear_bit(__NX_RESETTING, &adapter->state); 2563 } 2564 2565 static void 2566 netxen_detach_work(struct work_struct *work) 2567 { 2568 struct netxen_adapter *adapter = container_of(work, 2569 struct netxen_adapter, fw_work.work); 2570 struct net_device *netdev = adapter->netdev; 2571 int ref_cnt = 0, delay; 2572 u32 status; 2573 2574 netif_device_detach(netdev); 2575 2576 netxen_nic_down(adapter, netdev); 2577 2578 rtnl_lock(); 2579 netxen_nic_detach(adapter); 2580 rtnl_unlock(); 2581 2582 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1); 2583 2584 if (status & NX_RCODE_FATAL_ERROR) 2585 goto err_ret; 2586 2587 if (adapter->temp == NX_TEMP_PANIC) 2588 goto err_ret; 2589 2590 if (!(adapter->flags & NETXEN_FW_RESET_OWNER)) 2591 ref_cnt = nx_decr_dev_ref_cnt(adapter); 2592 2593 if (ref_cnt == -EIO) 2594 goto err_ret; 2595 2596 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY); 2597 2598 adapter->fw_wait_cnt = 0; 2599 netxen_schedule_work(adapter, netxen_fwinit_work, delay); 2600 2601 return; 2602 2603 err_ret: 2604 clear_bit(__NX_RESETTING, &adapter->state); 2605 } 2606 2607 static int 2608 netxen_check_health(struct netxen_adapter *adapter) 2609 { 2610 u32 state, heartbit; 2611 u32 peg_status; 2612 struct net_device *netdev = adapter->netdev; 2613 2614 state = NXRD32(adapter, NX_CRB_DEV_STATE); 2615 if (state == NX_DEV_NEED_AER) 2616 return 0; 2617 2618 if (netxen_nic_check_temp(adapter)) 2619 goto detach; 2620 2621 if (adapter->need_fw_reset) { 2622 if (nx_dev_request_reset(adapter)) 2623 return 0; 2624 goto detach; 2625 } 2626 2627 /* NX_DEV_NEED_RESET, this state can be marked in two cases 2628 * 1. Tx timeout 2. Fw hang 2629 * Send request to destroy context in case of tx timeout only 2630 * and doesn't required in case of Fw hang 2631 */ 2632 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) { 2633 adapter->need_fw_reset = 1; 2634 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 2635 goto detach; 2636 } 2637 2638 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 2639 return 0; 2640 2641 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER); 2642 if (heartbit != adapter->heartbit) { 2643 adapter->heartbit = heartbit; 2644 adapter->fw_fail_cnt = 0; 2645 if (adapter->need_fw_reset) 2646 goto detach; 2647 return 0; 2648 } 2649 2650 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH) 2651 return 0; 2652 2653 if (nx_dev_request_reset(adapter)) 2654 return 0; 2655 2656 clear_bit(__NX_FW_ATTACHED, &adapter->state); 2657 2658 dev_err(&netdev->dev, "firmware hang detected\n"); 2659 peg_status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1); 2660 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n" 2661 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n" 2662 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n" 2663 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n" 2664 "PEG_NET_4_PC: 0x%x\n", 2665 peg_status, 2666 NXRD32(adapter, NETXEN_PEG_HALT_STATUS2), 2667 NXRD32(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c), 2668 NXRD32(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c), 2669 NXRD32(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c), 2670 NXRD32(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c), 2671 NXRD32(adapter, NETXEN_CRB_PEG_NET_4 + 0x3c)); 2672 if (NX_FWERROR_PEGSTAT1(peg_status) == 0x67) 2673 dev_err(&adapter->pdev->dev, 2674 "Firmware aborted with error code 0x00006700. " 2675 "Device is being reset.\n"); 2676 detach: 2677 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) && 2678 !test_and_set_bit(__NX_RESETTING, &adapter->state)) 2679 netxen_schedule_work(adapter, netxen_detach_work, 0); 2680 return 1; 2681 } 2682 2683 static void 2684 netxen_fw_poll_work(struct work_struct *work) 2685 { 2686 struct netxen_adapter *adapter = container_of(work, 2687 struct netxen_adapter, fw_work.work); 2688 2689 if (test_bit(__NX_RESETTING, &adapter->state)) 2690 goto reschedule; 2691 2692 if (test_bit(__NX_DEV_UP, &adapter->state)) { 2693 if (!adapter->has_link_events) { 2694 2695 netxen_nic_handle_phy_intr(adapter); 2696 2697 if (adapter->link_changed) 2698 netxen_nic_set_link_parameters(adapter); 2699 } 2700 } 2701 2702 if (netxen_check_health(adapter)) 2703 return; 2704 2705 reschedule: 2706 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); 2707 } 2708 2709 static ssize_t 2710 netxen_store_bridged_mode(struct device *dev, 2711 struct device_attribute *attr, const char *buf, size_t len) 2712 { 2713 struct net_device *net = to_net_dev(dev); 2714 struct netxen_adapter *adapter = netdev_priv(net); 2715 unsigned long new; 2716 int ret = -EINVAL; 2717 2718 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG)) 2719 goto err_out; 2720 2721 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 2722 goto err_out; 2723 2724 if (strict_strtoul(buf, 2, &new)) 2725 goto err_out; 2726 2727 if (!netxen_config_bridged_mode(adapter, !!new)) 2728 ret = len; 2729 2730 err_out: 2731 return ret; 2732 } 2733 2734 static ssize_t 2735 netxen_show_bridged_mode(struct device *dev, 2736 struct device_attribute *attr, char *buf) 2737 { 2738 struct net_device *net = to_net_dev(dev); 2739 struct netxen_adapter *adapter; 2740 int bridged_mode = 0; 2741 2742 adapter = netdev_priv(net); 2743 2744 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) 2745 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED); 2746 2747 return sprintf(buf, "%d\n", bridged_mode); 2748 } 2749 2750 static struct device_attribute dev_attr_bridged_mode = { 2751 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)}, 2752 .show = netxen_show_bridged_mode, 2753 .store = netxen_store_bridged_mode, 2754 }; 2755 2756 static ssize_t 2757 netxen_store_diag_mode(struct device *dev, 2758 struct device_attribute *attr, const char *buf, size_t len) 2759 { 2760 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2761 unsigned long new; 2762 2763 if (strict_strtoul(buf, 2, &new)) 2764 return -EINVAL; 2765 2766 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) 2767 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED; 2768 2769 return len; 2770 } 2771 2772 static ssize_t 2773 netxen_show_diag_mode(struct device *dev, 2774 struct device_attribute *attr, char *buf) 2775 { 2776 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2777 2778 return sprintf(buf, "%d\n", 2779 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)); 2780 } 2781 2782 static struct device_attribute dev_attr_diag_mode = { 2783 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)}, 2784 .show = netxen_show_diag_mode, 2785 .store = netxen_store_diag_mode, 2786 }; 2787 2788 static int 2789 netxen_sysfs_validate_crb(struct netxen_adapter *adapter, 2790 loff_t offset, size_t size) 2791 { 2792 size_t crb_size = 4; 2793 2794 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) 2795 return -EIO; 2796 2797 if (offset < NETXEN_PCI_CRBSPACE) { 2798 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 2799 return -EINVAL; 2800 2801 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, 2802 NETXEN_PCI_CAMQM_2M_END)) 2803 crb_size = 8; 2804 else 2805 return -EINVAL; 2806 } 2807 2808 if ((size != crb_size) || (offset & (crb_size-1))) 2809 return -EINVAL; 2810 2811 return 0; 2812 } 2813 2814 static ssize_t 2815 netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj, 2816 struct bin_attribute *attr, 2817 char *buf, loff_t offset, size_t size) 2818 { 2819 struct device *dev = container_of(kobj, struct device, kobj); 2820 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2821 u32 data; 2822 u64 qmdata; 2823 int ret; 2824 2825 ret = netxen_sysfs_validate_crb(adapter, offset, size); 2826 if (ret != 0) 2827 return ret; 2828 2829 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && 2830 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, 2831 NETXEN_PCI_CAMQM_2M_END)) { 2832 netxen_pci_camqm_read_2M(adapter, offset, &qmdata); 2833 memcpy(buf, &qmdata, size); 2834 } else { 2835 data = NXRD32(adapter, offset); 2836 memcpy(buf, &data, size); 2837 } 2838 2839 return size; 2840 } 2841 2842 static ssize_t 2843 netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj, 2844 struct bin_attribute *attr, 2845 char *buf, loff_t offset, size_t size) 2846 { 2847 struct device *dev = container_of(kobj, struct device, kobj); 2848 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2849 u32 data; 2850 u64 qmdata; 2851 int ret; 2852 2853 ret = netxen_sysfs_validate_crb(adapter, offset, size); 2854 if (ret != 0) 2855 return ret; 2856 2857 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && 2858 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, 2859 NETXEN_PCI_CAMQM_2M_END)) { 2860 memcpy(&qmdata, buf, size); 2861 netxen_pci_camqm_write_2M(adapter, offset, qmdata); 2862 } else { 2863 memcpy(&data, buf, size); 2864 NXWR32(adapter, offset, data); 2865 } 2866 2867 return size; 2868 } 2869 2870 static int 2871 netxen_sysfs_validate_mem(struct netxen_adapter *adapter, 2872 loff_t offset, size_t size) 2873 { 2874 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) 2875 return -EIO; 2876 2877 if ((size != 8) || (offset & 0x7)) 2878 return -EIO; 2879 2880 return 0; 2881 } 2882 2883 static ssize_t 2884 netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj, 2885 struct bin_attribute *attr, 2886 char *buf, loff_t offset, size_t size) 2887 { 2888 struct device *dev = container_of(kobj, struct device, kobj); 2889 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2890 u64 data; 2891 int ret; 2892 2893 ret = netxen_sysfs_validate_mem(adapter, offset, size); 2894 if (ret != 0) 2895 return ret; 2896 2897 if (adapter->pci_mem_read(adapter, offset, &data)) 2898 return -EIO; 2899 2900 memcpy(buf, &data, size); 2901 2902 return size; 2903 } 2904 2905 static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj, 2906 struct bin_attribute *attr, char *buf, 2907 loff_t offset, size_t size) 2908 { 2909 struct device *dev = container_of(kobj, struct device, kobj); 2910 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2911 u64 data; 2912 int ret; 2913 2914 ret = netxen_sysfs_validate_mem(adapter, offset, size); 2915 if (ret != 0) 2916 return ret; 2917 2918 memcpy(&data, buf, size); 2919 2920 if (adapter->pci_mem_write(adapter, offset, data)) 2921 return -EIO; 2922 2923 return size; 2924 } 2925 2926 2927 static struct bin_attribute bin_attr_crb = { 2928 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)}, 2929 .size = 0, 2930 .read = netxen_sysfs_read_crb, 2931 .write = netxen_sysfs_write_crb, 2932 }; 2933 2934 static struct bin_attribute bin_attr_mem = { 2935 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)}, 2936 .size = 0, 2937 .read = netxen_sysfs_read_mem, 2938 .write = netxen_sysfs_write_mem, 2939 }; 2940 2941 static ssize_t 2942 netxen_sysfs_read_dimm(struct file *filp, struct kobject *kobj, 2943 struct bin_attribute *attr, 2944 char *buf, loff_t offset, size_t size) 2945 { 2946 struct device *dev = container_of(kobj, struct device, kobj); 2947 struct netxen_adapter *adapter = dev_get_drvdata(dev); 2948 struct net_device *netdev = adapter->netdev; 2949 struct netxen_dimm_cfg dimm; 2950 u8 dw, rows, cols, banks, ranks; 2951 u32 val; 2952 2953 if (size != sizeof(struct netxen_dimm_cfg)) { 2954 netdev_err(netdev, "Invalid size\n"); 2955 return -1; 2956 } 2957 2958 memset(&dimm, 0, sizeof(struct netxen_dimm_cfg)); 2959 val = NXRD32(adapter, NETXEN_DIMM_CAPABILITY); 2960 2961 /* Checks if DIMM info is valid. */ 2962 if (val & NETXEN_DIMM_VALID_FLAG) { 2963 netdev_err(netdev, "Invalid DIMM flag\n"); 2964 dimm.presence = 0xff; 2965 goto out; 2966 } 2967 2968 rows = NETXEN_DIMM_NUMROWS(val); 2969 cols = NETXEN_DIMM_NUMCOLS(val); 2970 ranks = NETXEN_DIMM_NUMRANKS(val); 2971 banks = NETXEN_DIMM_NUMBANKS(val); 2972 dw = NETXEN_DIMM_DATAWIDTH(val); 2973 2974 dimm.presence = (val & NETXEN_DIMM_PRESENT); 2975 2976 /* Checks if DIMM info is present. */ 2977 if (!dimm.presence) { 2978 netdev_err(netdev, "DIMM not present\n"); 2979 goto out; 2980 } 2981 2982 dimm.dimm_type = NETXEN_DIMM_TYPE(val); 2983 2984 switch (dimm.dimm_type) { 2985 case NETXEN_DIMM_TYPE_RDIMM: 2986 case NETXEN_DIMM_TYPE_UDIMM: 2987 case NETXEN_DIMM_TYPE_SO_DIMM: 2988 case NETXEN_DIMM_TYPE_Micro_DIMM: 2989 case NETXEN_DIMM_TYPE_Mini_RDIMM: 2990 case NETXEN_DIMM_TYPE_Mini_UDIMM: 2991 break; 2992 default: 2993 netdev_err(netdev, "Invalid DIMM type %x\n", dimm.dimm_type); 2994 goto out; 2995 } 2996 2997 if (val & NETXEN_DIMM_MEMTYPE_DDR2_SDRAM) 2998 dimm.mem_type = NETXEN_DIMM_MEM_DDR2_SDRAM; 2999 else 3000 dimm.mem_type = NETXEN_DIMM_MEMTYPE(val); 3001 3002 if (val & NETXEN_DIMM_SIZE) { 3003 dimm.size = NETXEN_DIMM_STD_MEM_SIZE; 3004 goto out; 3005 } 3006 3007 if (!rows) { 3008 netdev_err(netdev, "Invalid no of rows %x\n", rows); 3009 goto out; 3010 } 3011 3012 if (!cols) { 3013 netdev_err(netdev, "Invalid no of columns %x\n", cols); 3014 goto out; 3015 } 3016 3017 if (!banks) { 3018 netdev_err(netdev, "Invalid no of banks %x\n", banks); 3019 goto out; 3020 } 3021 3022 ranks += 1; 3023 3024 switch (dw) { 3025 case 0x0: 3026 dw = 32; 3027 break; 3028 case 0x1: 3029 dw = 33; 3030 break; 3031 case 0x2: 3032 dw = 36; 3033 break; 3034 case 0x3: 3035 dw = 64; 3036 break; 3037 case 0x4: 3038 dw = 72; 3039 break; 3040 case 0x5: 3041 dw = 80; 3042 break; 3043 case 0x6: 3044 dw = 128; 3045 break; 3046 case 0x7: 3047 dw = 144; 3048 break; 3049 default: 3050 netdev_err(netdev, "Invalid data-width %x\n", dw); 3051 goto out; 3052 } 3053 3054 dimm.size = ((1 << rows) * (1 << cols) * dw * banks * ranks) / 8; 3055 /* Size returned in MB. */ 3056 dimm.size = (dimm.size) / 0x100000; 3057 out: 3058 memcpy(buf, &dimm, sizeof(struct netxen_dimm_cfg)); 3059 return sizeof(struct netxen_dimm_cfg); 3060 3061 } 3062 3063 static struct bin_attribute bin_attr_dimm = { 3064 .attr = { .name = "dimm", .mode = (S_IRUGO | S_IWUSR) }, 3065 .size = 0, 3066 .read = netxen_sysfs_read_dimm, 3067 }; 3068 3069 3070 static void 3071 netxen_create_sysfs_entries(struct netxen_adapter *adapter) 3072 { 3073 struct device *dev = &adapter->pdev->dev; 3074 3075 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) { 3076 /* bridged_mode control */ 3077 if (device_create_file(dev, &dev_attr_bridged_mode)) { 3078 dev_warn(dev, 3079 "failed to create bridged_mode sysfs entry\n"); 3080 } 3081 } 3082 } 3083 3084 static void 3085 netxen_remove_sysfs_entries(struct netxen_adapter *adapter) 3086 { 3087 struct device *dev = &adapter->pdev->dev; 3088 3089 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) 3090 device_remove_file(dev, &dev_attr_bridged_mode); 3091 } 3092 3093 static void 3094 netxen_create_diag_entries(struct netxen_adapter *adapter) 3095 { 3096 struct pci_dev *pdev = adapter->pdev; 3097 struct device *dev; 3098 3099 dev = &pdev->dev; 3100 if (device_create_file(dev, &dev_attr_diag_mode)) 3101 dev_info(dev, "failed to create diag_mode sysfs entry\n"); 3102 if (device_create_bin_file(dev, &bin_attr_crb)) 3103 dev_info(dev, "failed to create crb sysfs entry\n"); 3104 if (device_create_bin_file(dev, &bin_attr_mem)) 3105 dev_info(dev, "failed to create mem sysfs entry\n"); 3106 if (device_create_bin_file(dev, &bin_attr_dimm)) 3107 dev_info(dev, "failed to create dimm sysfs entry\n"); 3108 } 3109 3110 3111 static void 3112 netxen_remove_diag_entries(struct netxen_adapter *adapter) 3113 { 3114 struct pci_dev *pdev = adapter->pdev; 3115 struct device *dev = &pdev->dev; 3116 3117 device_remove_file(dev, &dev_attr_diag_mode); 3118 device_remove_bin_file(dev, &bin_attr_crb); 3119 device_remove_bin_file(dev, &bin_attr_mem); 3120 device_remove_bin_file(dev, &bin_attr_dimm); 3121 } 3122 3123 #ifdef CONFIG_INET 3124 3125 #define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops) 3126 3127 static int 3128 netxen_destip_supported(struct netxen_adapter *adapter) 3129 { 3130 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) 3131 return 0; 3132 3133 if (adapter->ahw.cut_through) 3134 return 0; 3135 3136 return 1; 3137 } 3138 3139 static void 3140 netxen_free_ip_list(struct netxen_adapter *adapter, bool master) 3141 { 3142 struct nx_ip_list *cur, *tmp_cur; 3143 3144 list_for_each_entry_safe(cur, tmp_cur, &adapter->ip_list, list) { 3145 if (master) { 3146 if (cur->master) { 3147 netxen_config_ipaddr(adapter, cur->ip_addr, 3148 NX_IP_DOWN); 3149 list_del(&cur->list); 3150 kfree(cur); 3151 } 3152 } else { 3153 netxen_config_ipaddr(adapter, cur->ip_addr, NX_IP_DOWN); 3154 list_del(&cur->list); 3155 kfree(cur); 3156 } 3157 } 3158 } 3159 3160 static bool 3161 netxen_list_config_ip(struct netxen_adapter *adapter, 3162 struct in_ifaddr *ifa, unsigned long event) 3163 { 3164 struct net_device *dev; 3165 struct nx_ip_list *cur, *tmp_cur; 3166 struct list_head *head; 3167 bool ret = false; 3168 3169 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL; 3170 3171 if (dev == NULL) 3172 goto out; 3173 3174 switch (event) { 3175 case NX_IP_UP: 3176 list_for_each(head, &adapter->ip_list) { 3177 cur = list_entry(head, struct nx_ip_list, list); 3178 3179 if (cur->ip_addr == ifa->ifa_address) 3180 goto out; 3181 } 3182 3183 cur = kzalloc(sizeof(struct nx_ip_list), GFP_ATOMIC); 3184 if (cur == NULL) 3185 goto out; 3186 if (dev->priv_flags & IFF_802_1Q_VLAN) 3187 dev = vlan_dev_real_dev(dev); 3188 cur->master = !!netif_is_bond_master(dev); 3189 cur->ip_addr = ifa->ifa_address; 3190 list_add_tail(&cur->list, &adapter->ip_list); 3191 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP); 3192 ret = true; 3193 break; 3194 case NX_IP_DOWN: 3195 list_for_each_entry_safe(cur, tmp_cur, 3196 &adapter->ip_list, list) { 3197 if (cur->ip_addr == ifa->ifa_address) { 3198 list_del(&cur->list); 3199 kfree(cur); 3200 netxen_config_ipaddr(adapter, ifa->ifa_address, 3201 NX_IP_DOWN); 3202 ret = true; 3203 break; 3204 } 3205 } 3206 } 3207 out: 3208 return ret; 3209 } 3210 3211 static void 3212 netxen_config_indev_addr(struct netxen_adapter *adapter, 3213 struct net_device *dev, unsigned long event) 3214 { 3215 struct in_device *indev; 3216 3217 if (!netxen_destip_supported(adapter)) 3218 return; 3219 3220 indev = in_dev_get(dev); 3221 if (!indev) 3222 return; 3223 3224 for_ifa(indev) { 3225 switch (event) { 3226 case NETDEV_UP: 3227 netxen_list_config_ip(adapter, ifa, NX_IP_UP); 3228 break; 3229 case NETDEV_DOWN: 3230 netxen_list_config_ip(adapter, ifa, NX_IP_DOWN); 3231 break; 3232 default: 3233 break; 3234 } 3235 } endfor_ifa(indev); 3236 3237 in_dev_put(indev); 3238 } 3239 3240 static void 3241 netxen_restore_indev_addr(struct net_device *netdev, unsigned long event) 3242 3243 { 3244 struct netxen_adapter *adapter = netdev_priv(netdev); 3245 struct nx_ip_list *pos, *tmp_pos; 3246 unsigned long ip_event; 3247 3248 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN; 3249 netxen_config_indev_addr(adapter, netdev, event); 3250 3251 list_for_each_entry_safe(pos, tmp_pos, &adapter->ip_list, list) { 3252 netxen_config_ipaddr(adapter, pos->ip_addr, ip_event); 3253 } 3254 } 3255 3256 static inline bool 3257 netxen_config_checkdev(struct net_device *dev) 3258 { 3259 struct netxen_adapter *adapter; 3260 3261 if (!is_netxen_netdev(dev)) 3262 return false; 3263 adapter = netdev_priv(dev); 3264 if (!adapter) 3265 return false; 3266 if (!netxen_destip_supported(adapter)) 3267 return false; 3268 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) 3269 return false; 3270 3271 return true; 3272 } 3273 3274 /** 3275 * netxen_config_master - configure addresses based on master 3276 * @dev: netxen device 3277 * @event: netdev event 3278 */ 3279 static void netxen_config_master(struct net_device *dev, unsigned long event) 3280 { 3281 struct net_device *master, *slave; 3282 struct netxen_adapter *adapter = netdev_priv(dev); 3283 3284 rcu_read_lock(); 3285 master = netdev_master_upper_dev_get_rcu(dev); 3286 /* 3287 * This is the case where the netxen nic is being 3288 * enslaved and is dev_open()ed in bond_enslave() 3289 * Now we should program the bond's (and its vlans') 3290 * addresses in the netxen NIC. 3291 */ 3292 if (master && netif_is_bond_master(master) && 3293 !netif_is_bond_slave(dev)) { 3294 netxen_config_indev_addr(adapter, master, event); 3295 for_each_netdev_rcu(&init_net, slave) 3296 if (slave->priv_flags & IFF_802_1Q_VLAN && 3297 vlan_dev_real_dev(slave) == master) 3298 netxen_config_indev_addr(adapter, slave, event); 3299 } 3300 rcu_read_unlock(); 3301 /* 3302 * This is the case where the netxen nic is being 3303 * released and is dev_close()ed in bond_release() 3304 * just before IFF_BONDING is stripped. 3305 */ 3306 if (!master && dev->priv_flags & IFF_BONDING) 3307 netxen_free_ip_list(adapter, true); 3308 } 3309 3310 static int netxen_netdev_event(struct notifier_block *this, 3311 unsigned long event, void *ptr) 3312 { 3313 struct netxen_adapter *adapter; 3314 struct net_device *dev = (struct net_device *)ptr; 3315 struct net_device *orig_dev = dev; 3316 struct net_device *slave; 3317 3318 recheck: 3319 if (dev == NULL) 3320 goto done; 3321 3322 if (dev->priv_flags & IFF_802_1Q_VLAN) { 3323 dev = vlan_dev_real_dev(dev); 3324 goto recheck; 3325 } 3326 if (event == NETDEV_UP || event == NETDEV_DOWN) { 3327 /* If this is a bonding device, look for netxen-based slaves*/ 3328 if (netif_is_bond_master(dev)) { 3329 rcu_read_lock(); 3330 for_each_netdev_in_bond_rcu(dev, slave) { 3331 if (!netxen_config_checkdev(slave)) 3332 continue; 3333 adapter = netdev_priv(slave); 3334 netxen_config_indev_addr(adapter, 3335 orig_dev, event); 3336 } 3337 rcu_read_unlock(); 3338 } else { 3339 if (!netxen_config_checkdev(dev)) 3340 goto done; 3341 adapter = netdev_priv(dev); 3342 /* Act only if the actual netxen is the target */ 3343 if (orig_dev == dev) 3344 netxen_config_master(dev, event); 3345 netxen_config_indev_addr(adapter, orig_dev, event); 3346 } 3347 } 3348 done: 3349 return NOTIFY_DONE; 3350 } 3351 3352 static int 3353 netxen_inetaddr_event(struct notifier_block *this, 3354 unsigned long event, void *ptr) 3355 { 3356 struct netxen_adapter *adapter; 3357 struct net_device *dev, *slave; 3358 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr; 3359 unsigned long ip_event; 3360 3361 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL; 3362 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN; 3363 recheck: 3364 if (dev == NULL) 3365 goto done; 3366 3367 if (dev->priv_flags & IFF_802_1Q_VLAN) { 3368 dev = vlan_dev_real_dev(dev); 3369 goto recheck; 3370 } 3371 if (event == NETDEV_UP || event == NETDEV_DOWN) { 3372 /* If this is a bonding device, look for netxen-based slaves*/ 3373 if (netif_is_bond_master(dev)) { 3374 rcu_read_lock(); 3375 for_each_netdev_in_bond_rcu(dev, slave) { 3376 if (!netxen_config_checkdev(slave)) 3377 continue; 3378 adapter = netdev_priv(slave); 3379 netxen_list_config_ip(adapter, ifa, ip_event); 3380 } 3381 rcu_read_unlock(); 3382 } else { 3383 if (!netxen_config_checkdev(dev)) 3384 goto done; 3385 adapter = netdev_priv(dev); 3386 netxen_list_config_ip(adapter, ifa, ip_event); 3387 } 3388 } 3389 done: 3390 return NOTIFY_DONE; 3391 } 3392 3393 static struct notifier_block netxen_netdev_cb = { 3394 .notifier_call = netxen_netdev_event, 3395 }; 3396 3397 static struct notifier_block netxen_inetaddr_cb = { 3398 .notifier_call = netxen_inetaddr_event, 3399 }; 3400 #else 3401 static void 3402 netxen_restore_indev_addr(struct net_device *dev, unsigned long event) 3403 { } 3404 static void 3405 netxen_free_ip_list(struct netxen_adapter *adapter, bool master) 3406 { } 3407 #endif 3408 3409 static const struct pci_error_handlers netxen_err_handler = { 3410 .error_detected = netxen_io_error_detected, 3411 .slot_reset = netxen_io_slot_reset, 3412 .resume = netxen_io_resume, 3413 }; 3414 3415 static struct pci_driver netxen_driver = { 3416 .name = netxen_nic_driver_name, 3417 .id_table = netxen_pci_tbl, 3418 .probe = netxen_nic_probe, 3419 .remove = netxen_nic_remove, 3420 #ifdef CONFIG_PM 3421 .suspend = netxen_nic_suspend, 3422 .resume = netxen_nic_resume, 3423 #endif 3424 .shutdown = netxen_nic_shutdown, 3425 .err_handler = &netxen_err_handler 3426 }; 3427 3428 static int __init netxen_init_module(void) 3429 { 3430 printk(KERN_INFO "%s\n", netxen_nic_driver_string); 3431 3432 #ifdef CONFIG_INET 3433 register_netdevice_notifier(&netxen_netdev_cb); 3434 register_inetaddr_notifier(&netxen_inetaddr_cb); 3435 #endif 3436 return pci_register_driver(&netxen_driver); 3437 } 3438 3439 module_init(netxen_init_module); 3440 3441 static void __exit netxen_exit_module(void) 3442 { 3443 pci_unregister_driver(&netxen_driver); 3444 3445 #ifdef CONFIG_INET 3446 unregister_inetaddr_notifier(&netxen_inetaddr_cb); 3447 unregister_netdevice_notifier(&netxen_netdev_cb); 3448 #endif 3449 } 3450 3451 module_exit(netxen_exit_module); 3452