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0008 #include <linux/slab.h>
0009 #include <linux/vmalloc.h>
0010 #include <linux/interrupt.h>
0011 #include "netxen_nic_hw.h"
0012
0013 #include "netxen_nic.h"
0014
0015 #include <linux/dma-mapping.h>
0016 #include <linux/if_vlan.h>
0017 #include <net/ip.h>
0018 #include <linux/ipv6.h>
0019 #include <linux/inetdevice.h>
0020 #include <linux/sysfs.h>
0021 #include <linux/aer.h>
0022
0023 MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Intelligent Ethernet Driver");
0024 MODULE_LICENSE("GPL");
0025 MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
0026 MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME);
0027
0028 char netxen_nic_driver_name[] = "netxen_nic";
0029 static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v"
0030 NETXEN_NIC_LINUX_VERSIONID;
0031
0032 static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
0033
0034
0035 static int wol_port_mode = 5;
0036
0037 static int use_msi = 1;
0038
0039 static int use_msi_x = 1;
0040
0041 static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
0042 module_param(auto_fw_reset, int, 0644);
0043 MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled");
0044
0045 static int netxen_nic_probe(struct pci_dev *pdev,
0046 const struct pci_device_id *ent);
0047 static void netxen_nic_remove(struct pci_dev *pdev);
0048 static int netxen_nic_open(struct net_device *netdev);
0049 static int netxen_nic_close(struct net_device *netdev);
0050 static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
0051 struct net_device *);
0052 static void netxen_tx_timeout(struct net_device *netdev, unsigned int txqueue);
0053 static void netxen_tx_timeout_task(struct work_struct *work);
0054 static void netxen_fw_poll_work(struct work_struct *work);
0055 static void netxen_schedule_work(struct netxen_adapter *adapter,
0056 work_func_t func, int delay);
0057 static void netxen_cancel_fw_work(struct netxen_adapter *adapter);
0058 static int netxen_nic_poll(struct napi_struct *napi, int budget);
0059
0060 static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
0061 static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
0062 static void netxen_create_diag_entries(struct netxen_adapter *adapter);
0063 static void netxen_remove_diag_entries(struct netxen_adapter *adapter);
0064 static int nx_dev_request_aer(struct netxen_adapter *adapter);
0065 static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
0066 static int netxen_can_start_firmware(struct netxen_adapter *adapter);
0067
0068 static irqreturn_t netxen_intr(int irq, void *data);
0069 static irqreturn_t netxen_msi_intr(int irq, void *data);
0070 static irqreturn_t netxen_msix_intr(int irq, void *data);
0071
0072 static void netxen_free_ip_list(struct netxen_adapter *, bool);
0073 static void netxen_restore_indev_addr(struct net_device *dev, unsigned long);
0074 static void netxen_nic_get_stats(struct net_device *dev,
0075 struct rtnl_link_stats64 *stats);
0076 static int netxen_nic_set_mac(struct net_device *netdev, void *p);
0077
0078
0079 #define ENTRY(device) \
0080 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
0081 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
0082
0083 static const struct pci_device_id netxen_pci_tbl[] = {
0084 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
0085 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
0086 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
0087 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
0088 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
0089 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
0090 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
0091 ENTRY(PCI_DEVICE_ID_NX3031),
0092 {0,}
0093 };
0094
0095 MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
0096
0097 static uint32_t crb_cmd_producer[4] = {
0098 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
0099 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
0100 };
0101
0102 void
0103 netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
0104 struct nx_host_tx_ring *tx_ring)
0105 {
0106 NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
0107 }
0108
0109 static uint32_t crb_cmd_consumer[4] = {
0110 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
0111 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
0112 };
0113
0114 static inline void
0115 netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
0116 struct nx_host_tx_ring *tx_ring)
0117 {
0118 NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
0119 }
0120
0121 static uint32_t msi_tgt_status[8] = {
0122 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
0123 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
0124 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
0125 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
0126 };
0127
0128 static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
0129
0130 static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
0131 {
0132 struct netxen_adapter *adapter = sds_ring->adapter;
0133
0134 NXWRIO(adapter, sds_ring->crb_intr_mask, 0);
0135 }
0136
0137 static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
0138 {
0139 struct netxen_adapter *adapter = sds_ring->adapter;
0140
0141 NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1);
0142
0143 if (!NETXEN_IS_MSI_FAMILY(adapter))
0144 NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff);
0145 }
0146
0147 static int
0148 netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
0149 {
0150 int size = sizeof(struct nx_host_sds_ring) * count;
0151
0152 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
0153
0154 return recv_ctx->sds_rings == NULL;
0155 }
0156
0157 static void
0158 netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
0159 {
0160 kfree(recv_ctx->sds_rings);
0161 recv_ctx->sds_rings = NULL;
0162 }
0163
0164 static int
0165 netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
0166 {
0167 int ring;
0168 struct nx_host_sds_ring *sds_ring;
0169 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
0170
0171 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
0172 return -ENOMEM;
0173
0174 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
0175 sds_ring = &recv_ctx->sds_rings[ring];
0176 netif_napi_add(netdev, &sds_ring->napi,
0177 netxen_nic_poll, NAPI_POLL_WEIGHT);
0178 }
0179
0180 return 0;
0181 }
0182
0183 static void
0184 netxen_napi_del(struct netxen_adapter *adapter)
0185 {
0186 int ring;
0187 struct nx_host_sds_ring *sds_ring;
0188 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
0189
0190 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
0191 sds_ring = &recv_ctx->sds_rings[ring];
0192 netif_napi_del(&sds_ring->napi);
0193 }
0194
0195 netxen_free_sds_rings(&adapter->recv_ctx);
0196 }
0197
0198 static void
0199 netxen_napi_enable(struct netxen_adapter *adapter)
0200 {
0201 int ring;
0202 struct nx_host_sds_ring *sds_ring;
0203 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
0204
0205 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
0206 sds_ring = &recv_ctx->sds_rings[ring];
0207 napi_enable(&sds_ring->napi);
0208 netxen_nic_enable_int(sds_ring);
0209 }
0210 }
0211
0212 static void
0213 netxen_napi_disable(struct netxen_adapter *adapter)
0214 {
0215 int ring;
0216 struct nx_host_sds_ring *sds_ring;
0217 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
0218
0219 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
0220 sds_ring = &recv_ctx->sds_rings[ring];
0221 netxen_nic_disable_int(sds_ring);
0222 napi_synchronize(&sds_ring->napi);
0223 napi_disable(&sds_ring->napi);
0224 }
0225 }
0226
0227 static int nx_set_dma_mask(struct netxen_adapter *adapter)
0228 {
0229 struct pci_dev *pdev = adapter->pdev;
0230 uint64_t mask, cmask;
0231
0232 adapter->pci_using_dac = 0;
0233
0234 mask = DMA_BIT_MASK(32);
0235 cmask = DMA_BIT_MASK(32);
0236
0237 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
0238 #ifndef CONFIG_IA64
0239 mask = DMA_BIT_MASK(35);
0240 #endif
0241 } else {
0242 mask = DMA_BIT_MASK(39);
0243 cmask = mask;
0244 }
0245
0246 if (dma_set_mask(&pdev->dev, mask) == 0 &&
0247 dma_set_coherent_mask(&pdev->dev, cmask) == 0) {
0248 adapter->pci_using_dac = 1;
0249 return 0;
0250 }
0251
0252 return -EIO;
0253 }
0254
0255
0256 static int
0257 nx_update_dma_mask(struct netxen_adapter *adapter)
0258 {
0259 int change, shift, err;
0260 uint64_t mask, old_mask, old_cmask;
0261 struct pci_dev *pdev = adapter->pdev;
0262
0263 change = 0;
0264
0265 shift = NXRD32(adapter, CRB_DMA_SHIFT);
0266 if (shift > 32)
0267 return 0;
0268
0269 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
0270 change = 1;
0271 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
0272 change = 1;
0273
0274 if (change) {
0275 old_mask = pdev->dma_mask;
0276 old_cmask = pdev->dev.coherent_dma_mask;
0277
0278 mask = DMA_BIT_MASK(32+shift);
0279
0280 err = dma_set_mask(&pdev->dev, mask);
0281 if (err)
0282 goto err_out;
0283
0284 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
0285
0286 err = dma_set_coherent_mask(&pdev->dev, mask);
0287 if (err)
0288 goto err_out;
0289 }
0290 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
0291 }
0292
0293 return 0;
0294
0295 err_out:
0296 dma_set_mask(&pdev->dev, old_mask);
0297 dma_set_coherent_mask(&pdev->dev, old_cmask);
0298 return err;
0299 }
0300
0301 static int
0302 netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
0303 {
0304 u32 val, timeout;
0305
0306 if (first_boot == 0x55555555) {
0307
0308 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
0309
0310 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
0311 return 0;
0312
0313
0314 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
0315 if (!(first_boot & 0x4)) {
0316 first_boot |= 0x4;
0317 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
0318 NXRD32(adapter, NETXEN_PCIE_REG(0x4));
0319 }
0320
0321
0322 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
0323 if (first_boot != 0x80000f) {
0324
0325 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
0326 return -EIO;
0327 }
0328
0329
0330 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
0331 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
0332 timeout = 0;
0333 do {
0334 msleep(1);
0335 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
0336
0337 if (++timeout > 5000)
0338 return -EIO;
0339
0340 } while (val == NETXEN_BDINFO_MAGIC);
0341 }
0342 return 0;
0343 }
0344
0345 static void netxen_set_port_mode(struct netxen_adapter *adapter)
0346 {
0347 u32 val, data;
0348
0349 val = adapter->ahw.board_type;
0350 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
0351 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
0352 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
0353 data = NETXEN_PORT_MODE_802_3_AP;
0354 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
0355 } else if (port_mode == NETXEN_PORT_MODE_XG) {
0356 data = NETXEN_PORT_MODE_XG;
0357 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
0358 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
0359 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
0360 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
0361 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
0362 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
0363 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
0364 } else {
0365 data = NETXEN_PORT_MODE_AUTO_NEG;
0366 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
0367 }
0368
0369 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
0370 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
0371 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
0372 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
0373 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
0374 }
0375 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
0376 }
0377 }
0378
0379 #define PCI_CAP_ID_GEN 0x10
0380
0381 static void netxen_pcie_strap_init(struct netxen_adapter *adapter)
0382 {
0383 u32 pdevfuncsave;
0384 u32 c8c9value = 0;
0385 u32 chicken = 0;
0386 u32 control = 0;
0387 int i, pos;
0388 struct pci_dev *pdev;
0389
0390 pdev = adapter->pdev;
0391
0392 chicken = NXRD32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3));
0393
0394 chicken &= 0xFCFFFFFF;
0395
0396
0397
0398
0399 pos = pci_find_capability(pdev, PCI_CAP_ID_GEN);
0400 if (pos == 0xC0) {
0401 pci_read_config_dword(pdev, pos + 0x10, &control);
0402 if ((control & 0x000F0000) != 0x00020000) {
0403
0404 chicken |= 0x01000000;
0405 }
0406 dev_info(&adapter->pdev->dev, "Gen2 strapping detected\n");
0407 c8c9value = 0xF1000;
0408 } else {
0409
0410 chicken |= 0x01000000;
0411 dev_info(&adapter->pdev->dev, "Gen1 strapping detected\n");
0412 if (adapter->ahw.revision_id == NX_P3_B0)
0413 c8c9value = 0xF1020;
0414 else
0415 c8c9value = 0;
0416 }
0417
0418 NXWR32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3), chicken);
0419
0420 if (!c8c9value)
0421 return;
0422
0423 pdevfuncsave = pdev->devfn;
0424 if (pdevfuncsave & 0x07)
0425 return;
0426
0427 for (i = 0; i < 8; i++) {
0428 pci_read_config_dword(pdev, pos + 8, &control);
0429 pci_read_config_dword(pdev, pos + 8, &control);
0430 pci_write_config_dword(pdev, pos + 8, c8c9value);
0431 pdev->devfn++;
0432 }
0433 pdev->devfn = pdevfuncsave;
0434 }
0435
0436 static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
0437 {
0438 u32 control;
0439
0440 if (pdev->msix_cap) {
0441 pci_read_config_dword(pdev, pdev->msix_cap, &control);
0442 if (enable)
0443 control |= PCI_MSIX_FLAGS_ENABLE;
0444 else
0445 control = 0;
0446 pci_write_config_dword(pdev, pdev->msix_cap, control);
0447 }
0448 }
0449
0450 static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
0451 {
0452 int i;
0453
0454 for (i = 0; i < count; i++)
0455 adapter->msix_entries[i].entry = i;
0456 }
0457
0458 static int
0459 netxen_read_mac_addr(struct netxen_adapter *adapter)
0460 {
0461 int i;
0462 unsigned char *p;
0463 u64 mac_addr;
0464 struct net_device *netdev = adapter->netdev;
0465 struct pci_dev *pdev = adapter->pdev;
0466 u8 addr[ETH_ALEN];
0467
0468 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
0469 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
0470 return -EIO;
0471 } else {
0472 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
0473 return -EIO;
0474 }
0475
0476 p = (unsigned char *)&mac_addr;
0477 for (i = 0; i < 6; i++)
0478 addr[i] = *(p + 5 - i);
0479 eth_hw_addr_set(netdev, addr);
0480
0481 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
0482
0483
0484
0485 if (!is_valid_ether_addr(netdev->dev_addr))
0486 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
0487
0488 return 0;
0489 }
0490
0491 static int netxen_nic_set_mac(struct net_device *netdev, void *p)
0492 {
0493 struct netxen_adapter *adapter = netdev_priv(netdev);
0494 struct sockaddr *addr = p;
0495
0496 if (!is_valid_ether_addr(addr->sa_data))
0497 return -EADDRNOTAVAIL;
0498
0499 if (netif_running(netdev)) {
0500 netif_device_detach(netdev);
0501 netxen_napi_disable(adapter);
0502 }
0503
0504 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
0505 eth_hw_addr_set(netdev, addr->sa_data);
0506 adapter->macaddr_set(adapter, addr->sa_data);
0507
0508 if (netif_running(netdev)) {
0509 netif_device_attach(netdev);
0510 netxen_napi_enable(adapter);
0511 }
0512 return 0;
0513 }
0514
0515 static void netxen_set_multicast_list(struct net_device *dev)
0516 {
0517 struct netxen_adapter *adapter = netdev_priv(dev);
0518
0519 adapter->set_multi(dev);
0520 }
0521
0522 static netdev_features_t netxen_fix_features(struct net_device *dev,
0523 netdev_features_t features)
0524 {
0525 if (!(features & NETIF_F_RXCSUM)) {
0526 netdev_info(dev, "disabling LRO as RXCSUM is off\n");
0527
0528 features &= ~NETIF_F_LRO;
0529 }
0530
0531 return features;
0532 }
0533
0534 static int netxen_set_features(struct net_device *dev,
0535 netdev_features_t features)
0536 {
0537 struct netxen_adapter *adapter = netdev_priv(dev);
0538 int hw_lro;
0539
0540 if (!((dev->features ^ features) & NETIF_F_LRO))
0541 return 0;
0542
0543 hw_lro = (features & NETIF_F_LRO) ? NETXEN_NIC_LRO_ENABLED
0544 : NETXEN_NIC_LRO_DISABLED;
0545
0546 if (netxen_config_hw_lro(adapter, hw_lro))
0547 return -EIO;
0548
0549 if (!(features & NETIF_F_LRO) && netxen_send_lro_cleanup(adapter))
0550 return -EIO;
0551
0552 return 0;
0553 }
0554
0555 static const struct net_device_ops netxen_netdev_ops = {
0556 .ndo_open = netxen_nic_open,
0557 .ndo_stop = netxen_nic_close,
0558 .ndo_start_xmit = netxen_nic_xmit_frame,
0559 .ndo_get_stats64 = netxen_nic_get_stats,
0560 .ndo_validate_addr = eth_validate_addr,
0561 .ndo_set_rx_mode = netxen_set_multicast_list,
0562 .ndo_set_mac_address = netxen_nic_set_mac,
0563 .ndo_change_mtu = netxen_nic_change_mtu,
0564 .ndo_tx_timeout = netxen_tx_timeout,
0565 .ndo_fix_features = netxen_fix_features,
0566 .ndo_set_features = netxen_set_features,
0567 };
0568
0569 static inline void netxen_set_interrupt_mode(struct netxen_adapter *adapter,
0570 u32 mode)
0571 {
0572 NXWR32(adapter, NETXEN_INTR_MODE_REG, mode);
0573 }
0574
0575 static inline u32 netxen_get_interrupt_mode(struct netxen_adapter *adapter)
0576 {
0577 return NXRD32(adapter, NETXEN_INTR_MODE_REG);
0578 }
0579
0580 static void
0581 netxen_initialize_interrupt_registers(struct netxen_adapter *adapter)
0582 {
0583 struct netxen_legacy_intr_set *legacy_intrp;
0584 u32 tgt_status_reg, int_state_reg;
0585
0586 if (adapter->ahw.revision_id >= NX_P3_B0)
0587 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
0588 else
0589 legacy_intrp = &legacy_intr[0];
0590
0591 tgt_status_reg = legacy_intrp->tgt_status_reg;
0592 int_state_reg = ISR_INT_STATE_REG;
0593
0594 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
0595 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, tgt_status_reg);
0596 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
0597 legacy_intrp->tgt_mask_reg);
0598 adapter->pci_int_reg = netxen_get_ioaddr(adapter,
0599 legacy_intrp->pci_int_reg);
0600 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
0601
0602 if (adapter->ahw.revision_id >= NX_P3_B1)
0603 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
0604 int_state_reg);
0605 else
0606 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
0607 CRB_INT_VECTOR);
0608 }
0609
0610 static int netxen_setup_msi_interrupts(struct netxen_adapter *adapter,
0611 int num_msix)
0612 {
0613 struct pci_dev *pdev = adapter->pdev;
0614 u32 value;
0615 int err;
0616
0617 if (adapter->msix_supported) {
0618 netxen_init_msix_entries(adapter, num_msix);
0619 err = pci_enable_msix_range(pdev, adapter->msix_entries,
0620 num_msix, num_msix);
0621 if (err > 0) {
0622 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
0623 netxen_set_msix_bit(pdev, 1);
0624
0625 if (adapter->rss_supported)
0626 adapter->max_sds_rings = num_msix;
0627
0628 dev_info(&pdev->dev, "using msi-x interrupts\n");
0629 return 0;
0630 }
0631
0632 }
0633
0634 if (use_msi && !pci_enable_msi(pdev)) {
0635 value = msi_tgt_status[adapter->ahw.pci_func];
0636 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
0637 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, value);
0638 adapter->msix_entries[0].vector = pdev->irq;
0639 dev_info(&pdev->dev, "using msi interrupts\n");
0640 return 0;
0641 }
0642
0643 dev_err(&pdev->dev, "Failed to acquire MSI-X/MSI interrupt vector\n");
0644 return -EIO;
0645 }
0646
0647 static int netxen_setup_intr(struct netxen_adapter *adapter)
0648 {
0649 struct pci_dev *pdev = adapter->pdev;
0650 int num_msix;
0651
0652 if (adapter->rss_supported)
0653 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
0654 MSIX_ENTRIES_PER_ADAPTER : 2;
0655 else
0656 num_msix = 1;
0657
0658 adapter->max_sds_rings = 1;
0659 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
0660
0661 netxen_initialize_interrupt_registers(adapter);
0662 netxen_set_msix_bit(pdev, 0);
0663
0664 if (adapter->portnum == 0) {
0665 if (!netxen_setup_msi_interrupts(adapter, num_msix))
0666 netxen_set_interrupt_mode(adapter, NETXEN_MSI_MODE);
0667 else
0668 netxen_set_interrupt_mode(adapter, NETXEN_INTX_MODE);
0669 } else {
0670 if (netxen_get_interrupt_mode(adapter) == NETXEN_MSI_MODE &&
0671 netxen_setup_msi_interrupts(adapter, num_msix)) {
0672 dev_err(&pdev->dev, "Co-existence of MSI-X/MSI and INTx interrupts is not supported\n");
0673 return -EIO;
0674 }
0675 }
0676
0677 if (!NETXEN_IS_MSI_FAMILY(adapter)) {
0678 adapter->msix_entries[0].vector = pdev->irq;
0679 dev_info(&pdev->dev, "using legacy interrupts\n");
0680 }
0681 return 0;
0682 }
0683
0684 static void
0685 netxen_teardown_intr(struct netxen_adapter *adapter)
0686 {
0687 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
0688 pci_disable_msix(adapter->pdev);
0689 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
0690 pci_disable_msi(adapter->pdev);
0691 }
0692
0693 static void
0694 netxen_cleanup_pci_map(struct netxen_adapter *adapter)
0695 {
0696 if (adapter->ahw.db_base != NULL)
0697 iounmap(adapter->ahw.db_base);
0698 if (adapter->ahw.pci_base0 != NULL)
0699 iounmap(adapter->ahw.pci_base0);
0700 if (adapter->ahw.pci_base1 != NULL)
0701 iounmap(adapter->ahw.pci_base1);
0702 if (adapter->ahw.pci_base2 != NULL)
0703 iounmap(adapter->ahw.pci_base2);
0704 }
0705
0706 static int
0707 netxen_setup_pci_map(struct netxen_adapter *adapter)
0708 {
0709 void __iomem *db_ptr = NULL;
0710
0711 resource_size_t mem_base, db_base;
0712 unsigned long mem_len, db_len = 0;
0713
0714 struct pci_dev *pdev = adapter->pdev;
0715 int pci_func = adapter->ahw.pci_func;
0716 struct netxen_hardware_context *ahw = &adapter->ahw;
0717
0718 int err = 0;
0719
0720
0721
0722
0723
0724 adapter->ahw.crb_win = -1;
0725 adapter->ahw.ocm_win = -1;
0726
0727
0728 mem_base = pci_resource_start(pdev, 0);
0729 mem_len = pci_resource_len(pdev, 0);
0730
0731
0732 if (mem_len == NETXEN_PCI_128MB_SIZE) {
0733
0734 ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
0735 ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
0736 SECOND_PAGE_GROUP_SIZE);
0737 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
0738 THIRD_PAGE_GROUP_SIZE);
0739 if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL ||
0740 ahw->pci_base2 == NULL) {
0741 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
0742 err = -EIO;
0743 goto err_out;
0744 }
0745
0746 ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE;
0747
0748 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
0749
0750 ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
0751 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
0752 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
0753 if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) {
0754 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
0755 err = -EIO;
0756 goto err_out;
0757 }
0758
0759 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
0760
0761 ahw->pci_base0 = pci_ioremap_bar(pdev, 0);
0762 if (ahw->pci_base0 == NULL) {
0763 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
0764 return -EIO;
0765 }
0766 ahw->pci_len0 = mem_len;
0767 } else {
0768 return -EIO;
0769 }
0770
0771 netxen_setup_hwops(adapter);
0772
0773 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
0774
0775 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
0776 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
0777 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
0778
0779 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
0780 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
0781 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
0782 }
0783
0784 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
0785 goto skip_doorbell;
0786
0787 db_base = pci_resource_start(pdev, 4);
0788 db_len = pci_resource_len(pdev, 4);
0789
0790 if (db_len == 0) {
0791 printk(KERN_ERR "%s: doorbell is disabled\n",
0792 netxen_nic_driver_name);
0793 err = -EIO;
0794 goto err_out;
0795 }
0796
0797 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
0798 if (!db_ptr) {
0799 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
0800 netxen_nic_driver_name);
0801 err = -EIO;
0802 goto err_out;
0803 }
0804
0805 skip_doorbell:
0806 adapter->ahw.db_base = db_ptr;
0807 adapter->ahw.db_len = db_len;
0808 return 0;
0809
0810 err_out:
0811 netxen_cleanup_pci_map(adapter);
0812 return err;
0813 }
0814
0815 static void
0816 netxen_check_options(struct netxen_adapter *adapter)
0817 {
0818 u32 fw_major, fw_minor, fw_build, prev_fw_version;
0819 char brd_name[NETXEN_MAX_SHORT_NAME];
0820 char serial_num[32];
0821 int i, offset, val, err;
0822 __le32 *ptr32;
0823 struct pci_dev *pdev = adapter->pdev;
0824
0825 adapter->driver_mismatch = 0;
0826
0827 ptr32 = (__le32 *)&serial_num;
0828 offset = NX_FW_SERIAL_NUM_OFFSET;
0829 for (i = 0; i < 8; i++) {
0830 err = netxen_rom_fast_read(adapter, offset, &val);
0831 if (err) {
0832 dev_err(&pdev->dev, "error reading board info\n");
0833 adapter->driver_mismatch = 1;
0834 return;
0835 }
0836 ptr32[i] = cpu_to_le32(val);
0837 offset += sizeof(u32);
0838 }
0839
0840 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
0841 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
0842 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
0843 prev_fw_version = adapter->fw_version;
0844 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
0845
0846
0847 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
0848 if (adapter->mdump.md_template == NULL ||
0849 adapter->fw_version > prev_fw_version) {
0850 kfree(adapter->mdump.md_template);
0851 adapter->mdump.md_template = NULL;
0852 err = netxen_setup_minidump(adapter);
0853 if (err)
0854 dev_err(&adapter->pdev->dev,
0855 "Failed to setup minidump rcode = %d\n", err);
0856 }
0857 }
0858
0859 if (adapter->portnum == 0) {
0860 if (netxen_nic_get_brd_name_by_type(adapter->ahw.board_type,
0861 brd_name))
0862 strcpy(serial_num, "Unknown");
0863
0864 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n",
0865 module_name(THIS_MODULE),
0866 brd_name, serial_num, adapter->ahw.revision_id);
0867 }
0868
0869 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
0870 adapter->driver_mismatch = 1;
0871 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
0872 fw_major, fw_minor, fw_build);
0873 return;
0874 }
0875
0876 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
0877 i = NXRD32(adapter, NETXEN_SRE_MISC);
0878 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
0879 }
0880
0881 dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d [%s]\n",
0882 NETXEN_NIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build,
0883 adapter->ahw.cut_through ? "cut-through" : "legacy");
0884
0885 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
0886 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
0887
0888 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
0889 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
0890 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
0891 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
0892 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
0893 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
0894 }
0895
0896 adapter->msix_supported = 0;
0897 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
0898 adapter->msix_supported = !!use_msi_x;
0899 adapter->rss_supported = !!use_msi_x;
0900 } else {
0901 u32 flashed_ver = 0;
0902 netxen_rom_fast_read(adapter,
0903 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
0904 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
0905
0906 if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) {
0907 switch (adapter->ahw.board_type) {
0908 case NETXEN_BRDTYPE_P2_SB31_10G:
0909 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
0910 adapter->msix_supported = !!use_msi_x;
0911 adapter->rss_supported = !!use_msi_x;
0912 break;
0913 default:
0914 break;
0915 }
0916 }
0917 }
0918
0919 adapter->num_txd = MAX_CMD_DESCRIPTORS;
0920
0921 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
0922 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
0923 adapter->max_rds_rings = 3;
0924 } else {
0925 adapter->num_lro_rxd = 0;
0926 adapter->max_rds_rings = 2;
0927 }
0928 }
0929
0930 static int
0931 netxen_start_firmware(struct netxen_adapter *adapter)
0932 {
0933 int val, err, first_boot;
0934 struct pci_dev *pdev = adapter->pdev;
0935
0936
0937 err = nx_set_dma_mask(adapter);
0938 if (err)
0939 return err;
0940
0941 err = netxen_can_start_firmware(adapter);
0942
0943 if (err < 0)
0944 return err;
0945
0946 if (!err)
0947 goto wait_init;
0948
0949 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
0950
0951 err = netxen_check_hw_init(adapter, first_boot);
0952 if (err) {
0953 dev_err(&pdev->dev, "error in init HW init sequence\n");
0954 return err;
0955 }
0956
0957 netxen_request_firmware(adapter);
0958
0959 err = netxen_need_fw_reset(adapter);
0960 if (err < 0)
0961 goto err_out;
0962 if (err == 0)
0963 goto pcie_strap_init;
0964
0965 if (first_boot != 0x55555555) {
0966 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
0967 netxen_pinit_from_rom(adapter);
0968 msleep(1);
0969 }
0970
0971 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
0972 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
0973 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
0974
0975 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
0976 netxen_set_port_mode(adapter);
0977
0978 err = netxen_load_firmware(adapter);
0979 if (err)
0980 goto err_out;
0981
0982 netxen_release_firmware(adapter);
0983
0984 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
0985
0986
0987 val = 0x7654;
0988 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
0989 val |= 0x0f000000;
0990 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
0991
0992 }
0993
0994 err = netxen_init_dummy_dma(adapter);
0995 if (err)
0996 goto err_out;
0997
0998
0999
1000
1001 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
1002 | ((_NETXEN_NIC_LINUX_MINOR << 8))
1003 | (_NETXEN_NIC_LINUX_SUBVERSION);
1004 NXWR32(adapter, CRB_DRIVER_VERSION, val);
1005
1006 pcie_strap_init:
1007 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1008 netxen_pcie_strap_init(adapter);
1009
1010 wait_init:
1011
1012 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
1013 if (err) {
1014 netxen_free_dummy_dma(adapter);
1015 goto err_out;
1016 }
1017
1018 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
1019
1020 nx_update_dma_mask(adapter);
1021
1022 netxen_check_options(adapter);
1023
1024 adapter->need_fw_reset = 0;
1025
1026
1027
1028 err_out:
1029 netxen_release_firmware(adapter);
1030 return err;
1031 }
1032
1033 static int
1034 netxen_nic_request_irq(struct netxen_adapter *adapter)
1035 {
1036 irq_handler_t handler;
1037 struct nx_host_sds_ring *sds_ring;
1038 int err, ring;
1039
1040 unsigned long flags = 0;
1041 struct net_device *netdev = adapter->netdev;
1042 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1043
1044 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
1045 handler = netxen_msix_intr;
1046 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
1047 handler = netxen_msi_intr;
1048 else {
1049 flags |= IRQF_SHARED;
1050 handler = netxen_intr;
1051 }
1052 adapter->irq = netdev->irq;
1053
1054 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1055 sds_ring = &recv_ctx->sds_rings[ring];
1056 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
1057 err = request_irq(sds_ring->irq, handler,
1058 flags, sds_ring->name, sds_ring);
1059 if (err)
1060 return err;
1061 }
1062
1063 return 0;
1064 }
1065
1066 static void
1067 netxen_nic_free_irq(struct netxen_adapter *adapter)
1068 {
1069 int ring;
1070 struct nx_host_sds_ring *sds_ring;
1071
1072 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1073
1074 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1075 sds_ring = &recv_ctx->sds_rings[ring];
1076 free_irq(sds_ring->irq, sds_ring);
1077 }
1078 }
1079
1080 static void
1081 netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
1082 {
1083 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
1084 adapter->coal.normal.data.rx_time_us =
1085 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
1086 adapter->coal.normal.data.rx_packets =
1087 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
1088 adapter->coal.normal.data.tx_time_us =
1089 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
1090 adapter->coal.normal.data.tx_packets =
1091 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
1092 }
1093
1094
1095 static int
1096 __netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1097 {
1098 int err;
1099
1100 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1101 return -EIO;
1102
1103 err = adapter->init_port(adapter, adapter->physical_port);
1104 if (err) {
1105 printk(KERN_ERR "%s: Failed to initialize port %d\n",
1106 netxen_nic_driver_name, adapter->portnum);
1107 return err;
1108 }
1109 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1110 adapter->macaddr_set(adapter, adapter->mac_addr);
1111
1112 adapter->set_multi(netdev);
1113 adapter->set_mtu(adapter, netdev->mtu);
1114
1115 adapter->ahw.linkup = 0;
1116
1117 if (adapter->max_sds_rings > 1)
1118 netxen_config_rss(adapter, 1);
1119
1120 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1121 netxen_config_intr_coalesce(adapter);
1122
1123 if (netdev->features & NETIF_F_LRO)
1124 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
1125
1126 netxen_napi_enable(adapter);
1127
1128 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1129 netxen_linkevent_request(adapter, 1);
1130 else
1131 netxen_nic_set_link_parameters(adapter);
1132
1133 set_bit(__NX_DEV_UP, &adapter->state);
1134 return 0;
1135 }
1136
1137
1138
1139 static inline int
1140 netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1141 {
1142 int err = 0;
1143
1144 rtnl_lock();
1145 if (netif_running(netdev))
1146 err = __netxen_nic_up(adapter, netdev);
1147 rtnl_unlock();
1148
1149 return err;
1150 }
1151
1152
1153 static void
1154 __netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1155 {
1156 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1157 return;
1158
1159 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
1160 return;
1161
1162 smp_mb();
1163 netif_carrier_off(netdev);
1164 netif_tx_disable(netdev);
1165
1166 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1167 netxen_linkevent_request(adapter, 0);
1168
1169 if (adapter->stop_port)
1170 adapter->stop_port(adapter);
1171
1172 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1173 netxen_p3_free_mac_list(adapter);
1174
1175 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
1176
1177 netxen_napi_disable(adapter);
1178
1179 netxen_release_tx_buffers(adapter);
1180 }
1181
1182
1183
1184 static inline void
1185 netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1186 {
1187 rtnl_lock();
1188 if (netif_running(netdev))
1189 __netxen_nic_down(adapter, netdev);
1190 rtnl_unlock();
1191
1192 }
1193
1194 static int
1195 netxen_nic_attach(struct netxen_adapter *adapter)
1196 {
1197 struct net_device *netdev = adapter->netdev;
1198 struct pci_dev *pdev = adapter->pdev;
1199 int err, ring;
1200 struct nx_host_rds_ring *rds_ring;
1201 struct nx_host_tx_ring *tx_ring;
1202 u32 capab2;
1203
1204 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1205 return 0;
1206
1207 err = netxen_init_firmware(adapter);
1208 if (err)
1209 return err;
1210
1211 adapter->flags &= ~NETXEN_FW_MSS_CAP;
1212 if (adapter->capabilities & NX_FW_CAPABILITY_MORE_CAPS) {
1213 capab2 = NXRD32(adapter, CRB_FW_CAPABILITIES_2);
1214 if (capab2 & NX_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1215 adapter->flags |= NETXEN_FW_MSS_CAP;
1216 }
1217
1218 err = netxen_napi_add(adapter, netdev);
1219 if (err)
1220 return err;
1221
1222 err = netxen_alloc_sw_resources(adapter);
1223 if (err) {
1224 printk(KERN_ERR "%s: Error in setting sw resources\n",
1225 netdev->name);
1226 return err;
1227 }
1228
1229 err = netxen_alloc_hw_resources(adapter);
1230 if (err) {
1231 printk(KERN_ERR "%s: Error in setting hw resources\n",
1232 netdev->name);
1233 goto err_out_free_sw;
1234 }
1235
1236 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1237 tx_ring = adapter->tx_ring;
1238 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1239 crb_cmd_producer[adapter->portnum]);
1240 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1241 crb_cmd_consumer[adapter->portnum]);
1242
1243 tx_ring->producer = 0;
1244 tx_ring->sw_consumer = 0;
1245
1246 netxen_nic_update_cmd_producer(adapter, tx_ring);
1247 netxen_nic_update_cmd_consumer(adapter, tx_ring);
1248 }
1249
1250 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1251 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1252 netxen_post_rx_buffers(adapter, ring, rds_ring);
1253 }
1254
1255 err = netxen_nic_request_irq(adapter);
1256 if (err) {
1257 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1258 netdev->name);
1259 goto err_out_free_rxbuf;
1260 }
1261
1262 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1263 netxen_nic_init_coalesce_defaults(adapter);
1264
1265 netxen_create_sysfs_entries(adapter);
1266
1267 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1268 return 0;
1269
1270 err_out_free_rxbuf:
1271 netxen_release_rx_buffers(adapter);
1272 netxen_free_hw_resources(adapter);
1273 err_out_free_sw:
1274 netxen_free_sw_resources(adapter);
1275 return err;
1276 }
1277
1278 static void
1279 netxen_nic_detach(struct netxen_adapter *adapter)
1280 {
1281 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1282 return;
1283
1284 netxen_remove_sysfs_entries(adapter);
1285
1286 netxen_free_hw_resources(adapter);
1287 netxen_release_rx_buffers(adapter);
1288 netxen_nic_free_irq(adapter);
1289 netxen_napi_del(adapter);
1290 netxen_free_sw_resources(adapter);
1291
1292 adapter->is_up = 0;
1293 }
1294
1295 int
1296 netxen_nic_reset_context(struct netxen_adapter *adapter)
1297 {
1298 int err = 0;
1299 struct net_device *netdev = adapter->netdev;
1300
1301 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1302 return -EBUSY;
1303
1304 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1305
1306 netif_device_detach(netdev);
1307
1308 if (netif_running(netdev))
1309 __netxen_nic_down(adapter, netdev);
1310
1311 netxen_nic_detach(adapter);
1312
1313 if (netif_running(netdev)) {
1314 err = netxen_nic_attach(adapter);
1315 if (!err)
1316 err = __netxen_nic_up(adapter, netdev);
1317
1318 if (err)
1319 goto done;
1320 }
1321
1322 netif_device_attach(netdev);
1323 }
1324
1325 done:
1326 clear_bit(__NX_RESETTING, &adapter->state);
1327 return err;
1328 }
1329
1330 static int
1331 netxen_setup_netdev(struct netxen_adapter *adapter,
1332 struct net_device *netdev)
1333 {
1334 int err = 0;
1335 struct pci_dev *pdev = adapter->pdev;
1336
1337 adapter->mc_enabled = 0;
1338 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1339 adapter->max_mc_count = 38;
1340 else
1341 adapter->max_mc_count = 16;
1342
1343 netdev->netdev_ops = &netxen_netdev_ops;
1344 netdev->watchdog_timeo = 5*HZ;
1345
1346 netxen_nic_change_mtu(netdev, netdev->mtu);
1347
1348 netdev->ethtool_ops = &netxen_nic_ethtool_ops;
1349
1350 netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
1351 NETIF_F_RXCSUM;
1352
1353 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1354 netdev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
1355
1356 netdev->vlan_features |= netdev->hw_features;
1357
1358 if (adapter->pci_using_dac) {
1359 netdev->features |= NETIF_F_HIGHDMA;
1360 netdev->vlan_features |= NETIF_F_HIGHDMA;
1361 }
1362
1363 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1364 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX;
1365
1366 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
1367 netdev->hw_features |= NETIF_F_LRO;
1368
1369 netdev->features |= netdev->hw_features;
1370
1371 netdev->irq = adapter->msix_entries[0].vector;
1372
1373 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
1374
1375 if (netxen_read_mac_addr(adapter))
1376 dev_warn(&pdev->dev, "failed to read mac addr\n");
1377
1378 netif_carrier_off(netdev);
1379
1380 err = register_netdev(netdev);
1381 if (err) {
1382 dev_err(&pdev->dev, "failed to register net device\n");
1383 return err;
1384 }
1385
1386 return 0;
1387 }
1388
1389 #define NETXEN_ULA_ADAPTER_KEY (0xdaddad01)
1390 #define NETXEN_NON_ULA_ADAPTER_KEY (0xdaddad00)
1391
1392 static void netxen_read_ula_info(struct netxen_adapter *adapter)
1393 {
1394 u32 temp;
1395
1396
1397 if (adapter->portnum != 0)
1398 return;
1399
1400 temp = NXRD32(adapter, NETXEN_ULA_KEY);
1401 switch (temp) {
1402 case NETXEN_ULA_ADAPTER_KEY:
1403 dev_info(&adapter->pdev->dev, "ULA adapter");
1404 break;
1405 case NETXEN_NON_ULA_ADAPTER_KEY:
1406 dev_info(&adapter->pdev->dev, "non ULA adapter");
1407 break;
1408 default:
1409 break;
1410 }
1411
1412 return;
1413 }
1414
1415 #ifdef CONFIG_PCIEAER
1416 static void netxen_mask_aer_correctable(struct netxen_adapter *adapter)
1417 {
1418 struct pci_dev *pdev = adapter->pdev;
1419 struct pci_dev *root = pdev->bus->self;
1420 u32 aer_pos;
1421
1422
1423 if (!root)
1424 return;
1425
1426 if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM &&
1427 adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP)
1428 return;
1429
1430 if (pci_pcie_type(root) != PCI_EXP_TYPE_ROOT_PORT)
1431 return;
1432
1433 aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR);
1434 if (!aer_pos)
1435 return;
1436
1437 pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff);
1438 }
1439 #endif
1440
1441 static int
1442 netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1443 {
1444 struct net_device *netdev = NULL;
1445 struct netxen_adapter *adapter = NULL;
1446 int i = 0, err;
1447 int pci_func_id = PCI_FUNC(pdev->devfn);
1448 uint8_t revision_id;
1449 u32 val;
1450
1451 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) {
1452 pr_warn("%s: chip revisions between 0x%x-0x%x will not be enabled\n",
1453 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
1454 return -ENODEV;
1455 }
1456
1457 if ((err = pci_enable_device(pdev)))
1458 return err;
1459
1460 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1461 err = -ENODEV;
1462 goto err_out_disable_pdev;
1463 }
1464
1465 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1466 goto err_out_disable_pdev;
1467
1468 if (NX_IS_REVISION_P3(pdev->revision))
1469 pci_enable_pcie_error_reporting(pdev);
1470
1471 pci_set_master(pdev);
1472
1473 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1474 if(!netdev) {
1475 err = -ENOMEM;
1476 goto err_out_free_res;
1477 }
1478
1479 SET_NETDEV_DEV(netdev, &pdev->dev);
1480
1481 adapter = netdev_priv(netdev);
1482 adapter->netdev = netdev;
1483 adapter->pdev = pdev;
1484 adapter->ahw.pci_func = pci_func_id;
1485
1486 revision_id = pdev->revision;
1487 adapter->ahw.revision_id = revision_id;
1488
1489 rwlock_init(&adapter->ahw.crb_lock);
1490 spin_lock_init(&adapter->ahw.mem_lock);
1491
1492 spin_lock_init(&adapter->tx_clean_lock);
1493 INIT_LIST_HEAD(&adapter->mac_list);
1494 INIT_LIST_HEAD(&adapter->ip_list);
1495
1496 err = netxen_setup_pci_map(adapter);
1497 if (err)
1498 goto err_out_free_netdev;
1499
1500
1501 adapter->portnum = pci_func_id;
1502
1503 err = netxen_nic_get_board_info(adapter);
1504 if (err) {
1505 dev_err(&pdev->dev, "Error getting board config info.\n");
1506 goto err_out_iounmap;
1507 }
1508
1509 #ifdef CONFIG_PCIEAER
1510 netxen_mask_aer_correctable(adapter);
1511 #endif
1512
1513
1514 switch (adapter->ahw.board_type) {
1515 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1516 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1517 if (pci_func_id >= 2)
1518 adapter->portnum = pci_func_id - 2;
1519 break;
1520 default:
1521 break;
1522 }
1523
1524 err = netxen_check_flash_fw_compatibility(adapter);
1525 if (err)
1526 goto err_out_iounmap;
1527
1528 if (adapter->portnum == 0) {
1529 val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
1530 if (val != 0xffffffff && val != 0) {
1531 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0);
1532 adapter->need_fw_reset = 1;
1533 }
1534 }
1535
1536 err = netxen_start_firmware(adapter);
1537 if (err)
1538 goto err_out_decr_ref;
1539
1540
1541
1542
1543 adapter->physical_port = adapter->portnum;
1544 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1545 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
1546 if (i != 0x55555555)
1547 adapter->physical_port = i;
1548 }
1549
1550
1551 netdev->min_mtu = 0;
1552 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1553 netdev->max_mtu = P3_MAX_MTU;
1554 else
1555 netdev->max_mtu = P2_MAX_MTU;
1556
1557 netxen_nic_clear_stats(adapter);
1558
1559 err = netxen_setup_intr(adapter);
1560
1561 if (err) {
1562 dev_err(&adapter->pdev->dev,
1563 "Failed to setup interrupts, error = %d\n", err);
1564 goto err_out_disable_msi;
1565 }
1566
1567 netxen_read_ula_info(adapter);
1568
1569 err = netxen_setup_netdev(adapter, netdev);
1570 if (err)
1571 goto err_out_disable_msi;
1572
1573 pci_set_drvdata(pdev, adapter);
1574
1575 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1576
1577 switch (adapter->ahw.port_type) {
1578 case NETXEN_NIC_GBE:
1579 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1580 adapter->netdev->name);
1581 break;
1582 case NETXEN_NIC_XGBE:
1583 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1584 adapter->netdev->name);
1585 break;
1586 }
1587
1588 netxen_create_diag_entries(adapter);
1589
1590 return 0;
1591
1592 err_out_disable_msi:
1593 netxen_teardown_intr(adapter);
1594
1595 netxen_free_dummy_dma(adapter);
1596
1597 err_out_decr_ref:
1598 nx_decr_dev_ref_cnt(adapter);
1599
1600 err_out_iounmap:
1601 netxen_cleanup_pci_map(adapter);
1602
1603 err_out_free_netdev:
1604 free_netdev(netdev);
1605
1606 err_out_free_res:
1607 if (NX_IS_REVISION_P3(pdev->revision))
1608 pci_disable_pcie_error_reporting(pdev);
1609 pci_release_regions(pdev);
1610
1611 err_out_disable_pdev:
1612 pci_disable_device(pdev);
1613 return err;
1614 }
1615
1616 static
1617 void netxen_cleanup_minidump(struct netxen_adapter *adapter)
1618 {
1619 kfree(adapter->mdump.md_template);
1620 adapter->mdump.md_template = NULL;
1621
1622 if (adapter->mdump.md_capture_buff) {
1623 vfree(adapter->mdump.md_capture_buff);
1624 adapter->mdump.md_capture_buff = NULL;
1625 }
1626 }
1627
1628 static void netxen_nic_remove(struct pci_dev *pdev)
1629 {
1630 struct netxen_adapter *adapter;
1631 struct net_device *netdev;
1632
1633 adapter = pci_get_drvdata(pdev);
1634 if (adapter == NULL)
1635 return;
1636
1637 netdev = adapter->netdev;
1638
1639 netxen_cancel_fw_work(adapter);
1640
1641 unregister_netdev(netdev);
1642
1643 cancel_work_sync(&adapter->tx_timeout_task);
1644
1645 netxen_free_ip_list(adapter, false);
1646 netxen_nic_detach(adapter);
1647
1648 nx_decr_dev_ref_cnt(adapter);
1649
1650 if (adapter->portnum == 0)
1651 netxen_free_dummy_dma(adapter);
1652
1653 clear_bit(__NX_RESETTING, &adapter->state);
1654
1655 netxen_teardown_intr(adapter);
1656 netxen_set_interrupt_mode(adapter, 0);
1657 netxen_remove_diag_entries(adapter);
1658
1659 netxen_cleanup_pci_map(adapter);
1660
1661 netxen_release_firmware(adapter);
1662
1663 if (NX_IS_REVISION_P3(pdev->revision)) {
1664 netxen_cleanup_minidump(adapter);
1665 pci_disable_pcie_error_reporting(pdev);
1666 }
1667
1668 pci_release_regions(pdev);
1669 pci_disable_device(pdev);
1670
1671 free_netdev(netdev);
1672 }
1673
1674 static void netxen_nic_detach_func(struct netxen_adapter *adapter)
1675 {
1676 struct net_device *netdev = adapter->netdev;
1677
1678 netif_device_detach(netdev);
1679
1680 netxen_cancel_fw_work(adapter);
1681
1682 if (netif_running(netdev))
1683 netxen_nic_down(adapter, netdev);
1684
1685 cancel_work_sync(&adapter->tx_timeout_task);
1686
1687 netxen_nic_detach(adapter);
1688
1689 if (adapter->portnum == 0)
1690 netxen_free_dummy_dma(adapter);
1691
1692 nx_decr_dev_ref_cnt(adapter);
1693
1694 clear_bit(__NX_RESETTING, &adapter->state);
1695 }
1696
1697 static int netxen_nic_attach_late_func(struct pci_dev *pdev)
1698 {
1699 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1700 struct net_device *netdev = adapter->netdev;
1701 int err;
1702
1703 pci_set_master(pdev);
1704
1705 adapter->ahw.crb_win = -1;
1706 adapter->ahw.ocm_win = -1;
1707
1708 err = netxen_start_firmware(adapter);
1709 if (err) {
1710 dev_err(&pdev->dev, "failed to start firmware\n");
1711 return err;
1712 }
1713
1714 if (netif_running(netdev)) {
1715 err = netxen_nic_attach(adapter);
1716 if (err)
1717 goto err_out;
1718
1719 err = netxen_nic_up(adapter, netdev);
1720 if (err)
1721 goto err_out_detach;
1722
1723 netxen_restore_indev_addr(netdev, NETDEV_UP);
1724 }
1725
1726 netif_device_attach(netdev);
1727 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1728 return 0;
1729
1730 err_out_detach:
1731 netxen_nic_detach(adapter);
1732 err_out:
1733 nx_decr_dev_ref_cnt(adapter);
1734 return err;
1735 }
1736
1737 static int netxen_nic_attach_func(struct pci_dev *pdev)
1738 {
1739 int err;
1740
1741 err = pci_enable_device(pdev);
1742 if (err)
1743 return err;
1744
1745 pci_set_power_state(pdev, PCI_D0);
1746 pci_restore_state(pdev);
1747
1748 return netxen_nic_attach_late_func(pdev);
1749 }
1750
1751 static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
1752 pci_channel_state_t state)
1753 {
1754 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1755
1756 if (state == pci_channel_io_perm_failure)
1757 return PCI_ERS_RESULT_DISCONNECT;
1758
1759 if (nx_dev_request_aer(adapter))
1760 return PCI_ERS_RESULT_RECOVERED;
1761
1762 netxen_nic_detach_func(adapter);
1763
1764 pci_disable_device(pdev);
1765
1766 return PCI_ERS_RESULT_NEED_RESET;
1767 }
1768
1769 static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev)
1770 {
1771 int err = 0;
1772
1773 err = netxen_nic_attach_func(pdev);
1774
1775 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
1776 }
1777
1778 static void netxen_nic_shutdown(struct pci_dev *pdev)
1779 {
1780 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1781
1782 netxen_nic_detach_func(adapter);
1783
1784 if (pci_save_state(pdev))
1785 return;
1786
1787 if (netxen_nic_wol_supported(adapter)) {
1788 pci_enable_wake(pdev, PCI_D3cold, 1);
1789 pci_enable_wake(pdev, PCI_D3hot, 1);
1790 }
1791
1792 pci_disable_device(pdev);
1793 }
1794
1795 static int __maybe_unused
1796 netxen_nic_suspend(struct device *dev_d)
1797 {
1798 struct netxen_adapter *adapter = dev_get_drvdata(dev_d);
1799
1800 netxen_nic_detach_func(adapter);
1801
1802 if (netxen_nic_wol_supported(adapter))
1803 device_wakeup_enable(dev_d);
1804
1805 return 0;
1806 }
1807
1808 static int __maybe_unused
1809 netxen_nic_resume(struct device *dev_d)
1810 {
1811 return netxen_nic_attach_late_func(to_pci_dev(dev_d));
1812 }
1813
1814 static int netxen_nic_open(struct net_device *netdev)
1815 {
1816 struct netxen_adapter *adapter = netdev_priv(netdev);
1817 int err = 0;
1818
1819 if (adapter->driver_mismatch)
1820 return -EIO;
1821
1822 err = netxen_nic_attach(adapter);
1823 if (err)
1824 return err;
1825
1826 err = __netxen_nic_up(adapter, netdev);
1827 if (err)
1828 goto err_out;
1829
1830 netif_start_queue(netdev);
1831
1832 return 0;
1833
1834 err_out:
1835 netxen_nic_detach(adapter);
1836 return err;
1837 }
1838
1839
1840
1841
1842 static int netxen_nic_close(struct net_device *netdev)
1843 {
1844 struct netxen_adapter *adapter = netdev_priv(netdev);
1845
1846 __netxen_nic_down(adapter, netdev);
1847 return 0;
1848 }
1849
1850 static void
1851 netxen_tso_check(struct net_device *netdev,
1852 struct nx_host_tx_ring *tx_ring,
1853 struct cmd_desc_type0 *first_desc,
1854 struct sk_buff *skb)
1855 {
1856 u8 opcode = TX_ETHER_PKT;
1857 __be16 protocol = skb->protocol;
1858 u16 flags = 0, vid = 0;
1859 u32 producer;
1860 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1861 struct cmd_desc_type0 *hwdesc;
1862 struct vlan_ethhdr *vh;
1863
1864 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1865
1866 vh = (struct vlan_ethhdr *)skb->data;
1867 protocol = vh->h_vlan_encapsulated_proto;
1868 flags = FLAGS_VLAN_TAGGED;
1869
1870 } else if (skb_vlan_tag_present(skb)) {
1871 flags = FLAGS_VLAN_OOB;
1872 vid = skb_vlan_tag_get(skb);
1873 netxen_set_tx_vlan_tci(first_desc, vid);
1874 vlan_oob = 1;
1875 }
1876
1877 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1878 skb_shinfo(skb)->gso_size > 0) {
1879
1880 hdr_len = skb_tcp_all_headers(skb);
1881
1882 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1883 first_desc->total_hdr_length = hdr_len;
1884 if (vlan_oob) {
1885 first_desc->total_hdr_length += VLAN_HLEN;
1886 first_desc->tcp_hdr_offset = VLAN_HLEN;
1887 first_desc->ip_hdr_offset = VLAN_HLEN;
1888
1889 flags |= FLAGS_VLAN_TAGGED;
1890 }
1891
1892 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1893 TX_TCP_LSO6 : TX_TCP_LSO;
1894 tso = 1;
1895
1896 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1897 u8 l4proto;
1898
1899 if (protocol == cpu_to_be16(ETH_P_IP)) {
1900 l4proto = ip_hdr(skb)->protocol;
1901
1902 if (l4proto == IPPROTO_TCP)
1903 opcode = TX_TCP_PKT;
1904 else if(l4proto == IPPROTO_UDP)
1905 opcode = TX_UDP_PKT;
1906 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1907 l4proto = ipv6_hdr(skb)->nexthdr;
1908
1909 if (l4proto == IPPROTO_TCP)
1910 opcode = TX_TCPV6_PKT;
1911 else if(l4proto == IPPROTO_UDP)
1912 opcode = TX_UDPV6_PKT;
1913 }
1914 }
1915
1916 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1917 first_desc->ip_hdr_offset += skb_network_offset(skb);
1918 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1919
1920 if (!tso)
1921 return;
1922
1923
1924
1925
1926 producer = tx_ring->producer;
1927 copied = 0;
1928 offset = 2;
1929
1930 if (vlan_oob) {
1931
1932
1933 hwdesc = &tx_ring->desc_head[producer];
1934 tx_ring->cmd_buf_arr[producer].skb = NULL;
1935
1936 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1937 hdr_len + VLAN_HLEN);
1938
1939 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1940 skb_copy_from_linear_data(skb, vh, 12);
1941 vh->h_vlan_proto = htons(ETH_P_8021Q);
1942 vh->h_vlan_TCI = htons(vid);
1943 skb_copy_from_linear_data_offset(skb, 12,
1944 (char *)vh + 16, copy_len - 16);
1945
1946 copied = copy_len - VLAN_HLEN;
1947 offset = 0;
1948
1949 producer = get_next_index(producer, tx_ring->num_desc);
1950 }
1951
1952 while (copied < hdr_len) {
1953
1954 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1955 (hdr_len - copied));
1956
1957 hwdesc = &tx_ring->desc_head[producer];
1958 tx_ring->cmd_buf_arr[producer].skb = NULL;
1959
1960 skb_copy_from_linear_data_offset(skb, copied,
1961 (char *)hwdesc + offset, copy_len);
1962
1963 copied += copy_len;
1964 offset = 0;
1965
1966 producer = get_next_index(producer, tx_ring->num_desc);
1967 }
1968
1969 tx_ring->producer = producer;
1970 barrier();
1971 }
1972
1973 static int
1974 netxen_map_tx_skb(struct pci_dev *pdev,
1975 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
1976 {
1977 struct netxen_skb_frag *nf;
1978 skb_frag_t *frag;
1979 int i, nr_frags;
1980 dma_addr_t map;
1981
1982 nr_frags = skb_shinfo(skb)->nr_frags;
1983 nf = &pbuf->frag_array[0];
1984
1985 map = dma_map_single(&pdev->dev, skb->data, skb_headlen(skb),
1986 DMA_TO_DEVICE);
1987 if (dma_mapping_error(&pdev->dev, map))
1988 goto out_err;
1989
1990 nf->dma = map;
1991 nf->length = skb_headlen(skb);
1992
1993 for (i = 0; i < nr_frags; i++) {
1994 frag = &skb_shinfo(skb)->frags[i];
1995 nf = &pbuf->frag_array[i+1];
1996
1997 map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag),
1998 DMA_TO_DEVICE);
1999 if (dma_mapping_error(&pdev->dev, map))
2000 goto unwind;
2001
2002 nf->dma = map;
2003 nf->length = skb_frag_size(frag);
2004 }
2005
2006 return 0;
2007
2008 unwind:
2009 while (--i >= 0) {
2010 nf = &pbuf->frag_array[i+1];
2011 dma_unmap_page(&pdev->dev, nf->dma, nf->length, DMA_TO_DEVICE);
2012 nf->dma = 0ULL;
2013 }
2014
2015 nf = &pbuf->frag_array[0];
2016 dma_unmap_single(&pdev->dev, nf->dma, skb_headlen(skb), DMA_TO_DEVICE);
2017 nf->dma = 0ULL;
2018
2019 out_err:
2020 return -ENOMEM;
2021 }
2022
2023 static inline void
2024 netxen_clear_cmddesc(u64 *desc)
2025 {
2026 desc[0] = 0ULL;
2027 desc[2] = 0ULL;
2028 }
2029
2030 static netdev_tx_t
2031 netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
2032 {
2033 struct netxen_adapter *adapter = netdev_priv(netdev);
2034 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
2035 struct netxen_cmd_buffer *pbuf;
2036 struct netxen_skb_frag *buffrag;
2037 struct cmd_desc_type0 *hwdesc, *first_desc;
2038 struct pci_dev *pdev;
2039 int i, k;
2040 int delta = 0;
2041 skb_frag_t *frag;
2042
2043 u32 producer;
2044 int frag_count;
2045 u32 num_txd = tx_ring->num_desc;
2046
2047 frag_count = skb_shinfo(skb)->nr_frags + 1;
2048
2049
2050
2051
2052 if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) {
2053
2054 for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) {
2055 frag = &skb_shinfo(skb)->frags[i];
2056 delta += skb_frag_size(frag);
2057 }
2058
2059 if (!__pskb_pull_tail(skb, delta))
2060 goto drop_packet;
2061
2062 frag_count = 1 + skb_shinfo(skb)->nr_frags;
2063 }
2064
2065 if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
2066 netif_stop_queue(netdev);
2067 smp_mb();
2068 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
2069 netif_start_queue(netdev);
2070 else
2071 return NETDEV_TX_BUSY;
2072 }
2073
2074 producer = tx_ring->producer;
2075 pbuf = &tx_ring->cmd_buf_arr[producer];
2076
2077 pdev = adapter->pdev;
2078
2079 if (netxen_map_tx_skb(pdev, skb, pbuf))
2080 goto drop_packet;
2081
2082 pbuf->skb = skb;
2083 pbuf->frag_count = frag_count;
2084
2085 first_desc = hwdesc = &tx_ring->desc_head[producer];
2086 netxen_clear_cmddesc((u64 *)hwdesc);
2087
2088 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
2089 netxen_set_tx_port(first_desc, adapter->portnum);
2090
2091 for (i = 0; i < frag_count; i++) {
2092
2093 k = i % 4;
2094
2095 if ((k == 0) && (i > 0)) {
2096
2097 producer = get_next_index(producer, num_txd);
2098 hwdesc = &tx_ring->desc_head[producer];
2099 netxen_clear_cmddesc((u64 *)hwdesc);
2100 tx_ring->cmd_buf_arr[producer].skb = NULL;
2101 }
2102
2103 buffrag = &pbuf->frag_array[i];
2104
2105 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
2106 switch (k) {
2107 case 0:
2108 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
2109 break;
2110 case 1:
2111 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
2112 break;
2113 case 2:
2114 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
2115 break;
2116 case 3:
2117 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
2118 break;
2119 }
2120 }
2121
2122 tx_ring->producer = get_next_index(producer, num_txd);
2123
2124 netxen_tso_check(netdev, tx_ring, first_desc, skb);
2125
2126 adapter->stats.txbytes += skb->len;
2127 adapter->stats.xmitcalled++;
2128
2129 netxen_nic_update_cmd_producer(adapter, tx_ring);
2130
2131 return NETDEV_TX_OK;
2132
2133 drop_packet:
2134 adapter->stats.txdropped++;
2135 dev_kfree_skb_any(skb);
2136 return NETDEV_TX_OK;
2137 }
2138
2139 static int netxen_nic_check_temp(struct netxen_adapter *adapter)
2140 {
2141 struct net_device *netdev = adapter->netdev;
2142 uint32_t temp, temp_state, temp_val;
2143 int rv = 0;
2144
2145 temp = NXRD32(adapter, CRB_TEMP_STATE);
2146
2147 temp_state = nx_get_temp_state(temp);
2148 temp_val = nx_get_temp_val(temp);
2149
2150 if (temp_state == NX_TEMP_PANIC) {
2151 printk(KERN_ALERT
2152 "%s: Device temperature %d degrees C exceeds"
2153 " maximum allowed. Hardware has been shut down.\n",
2154 netdev->name, temp_val);
2155 rv = 1;
2156 } else if (temp_state == NX_TEMP_WARN) {
2157 if (adapter->temp == NX_TEMP_NORMAL) {
2158 printk(KERN_ALERT
2159 "%s: Device temperature %d degrees C "
2160 "exceeds operating range."
2161 " Immediate action needed.\n",
2162 netdev->name, temp_val);
2163 }
2164 } else {
2165 if (adapter->temp == NX_TEMP_WARN) {
2166 printk(KERN_INFO
2167 "%s: Device temperature is now %d degrees C"
2168 " in normal range.\n", netdev->name,
2169 temp_val);
2170 }
2171 }
2172 adapter->temp = temp_state;
2173 return rv;
2174 }
2175
2176 void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
2177 {
2178 struct net_device *netdev = adapter->netdev;
2179
2180 if (adapter->ahw.linkup && !linkup) {
2181 printk(KERN_INFO "%s: %s NIC Link is down\n",
2182 netxen_nic_driver_name, netdev->name);
2183 adapter->ahw.linkup = 0;
2184 if (netif_running(netdev)) {
2185 netif_carrier_off(netdev);
2186 netif_stop_queue(netdev);
2187 }
2188 adapter->link_changed = !adapter->has_link_events;
2189 } else if (!adapter->ahw.linkup && linkup) {
2190 printk(KERN_INFO "%s: %s NIC Link is up\n",
2191 netxen_nic_driver_name, netdev->name);
2192 adapter->ahw.linkup = 1;
2193 if (netif_running(netdev)) {
2194 netif_carrier_on(netdev);
2195 netif_wake_queue(netdev);
2196 }
2197 adapter->link_changed = !adapter->has_link_events;
2198 }
2199 }
2200
2201 static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
2202 {
2203 u32 val, port, linkup;
2204
2205 port = adapter->physical_port;
2206
2207 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
2208 val = NXRD32(adapter, CRB_XG_STATE_P3);
2209 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
2210 linkup = (val == XG_LINK_UP_P3);
2211 } else {
2212 val = NXRD32(adapter, CRB_XG_STATE);
2213 val = (val >> port*8) & 0xff;
2214 linkup = (val == XG_LINK_UP);
2215 }
2216
2217 netxen_advert_link_change(adapter, linkup);
2218 }
2219
2220 static void netxen_tx_timeout(struct net_device *netdev, unsigned int txqueue)
2221 {
2222 struct netxen_adapter *adapter = netdev_priv(netdev);
2223
2224 if (test_bit(__NX_RESETTING, &adapter->state))
2225 return;
2226
2227 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2228 schedule_work(&adapter->tx_timeout_task);
2229 }
2230
2231 static void netxen_tx_timeout_task(struct work_struct *work)
2232 {
2233 struct netxen_adapter *adapter =
2234 container_of(work, struct netxen_adapter, tx_timeout_task);
2235
2236 if (!netif_running(adapter->netdev))
2237 return;
2238
2239 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
2240 return;
2241
2242 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
2243 goto request_reset;
2244
2245 rtnl_lock();
2246 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
2247
2248 netxen_napi_disable(adapter);
2249
2250 netxen_napi_enable(adapter);
2251
2252 netif_wake_queue(adapter->netdev);
2253
2254 clear_bit(__NX_RESETTING, &adapter->state);
2255 } else {
2256 clear_bit(__NX_RESETTING, &adapter->state);
2257 if (netxen_nic_reset_context(adapter)) {
2258 rtnl_unlock();
2259 goto request_reset;
2260 }
2261 }
2262 netif_trans_update(adapter->netdev);
2263 rtnl_unlock();
2264 return;
2265
2266 request_reset:
2267 adapter->need_fw_reset = 1;
2268 clear_bit(__NX_RESETTING, &adapter->state);
2269 }
2270
2271 static void netxen_nic_get_stats(struct net_device *netdev,
2272 struct rtnl_link_stats64 *stats)
2273 {
2274 struct netxen_adapter *adapter = netdev_priv(netdev);
2275
2276 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2277 stats->tx_packets = adapter->stats.xmitfinished;
2278 stats->rx_bytes = adapter->stats.rxbytes;
2279 stats->tx_bytes = adapter->stats.txbytes;
2280 stats->rx_dropped = adapter->stats.rxdropped;
2281 stats->tx_dropped = adapter->stats.txdropped;
2282 }
2283
2284 static irqreturn_t netxen_intr(int irq, void *data)
2285 {
2286 struct nx_host_sds_ring *sds_ring = data;
2287 struct netxen_adapter *adapter = sds_ring->adapter;
2288 u32 status = 0;
2289
2290 status = readl(adapter->isr_int_vec);
2291
2292 if (!(status & adapter->int_vec_bit))
2293 return IRQ_NONE;
2294
2295 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
2296
2297 status = readl(adapter->crb_int_state_reg);
2298 if (!ISR_LEGACY_INT_TRIGGERED(status))
2299 return IRQ_NONE;
2300
2301 } else {
2302 unsigned long our_int = 0;
2303
2304 our_int = readl(adapter->crb_int_state_reg);
2305
2306
2307 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
2308 return IRQ_NONE;
2309
2310
2311 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
2312
2313
2314 netxen_nic_disable_int(sds_ring);
2315 }
2316
2317 writel(0xffffffff, adapter->tgt_status_reg);
2318
2319 readl(adapter->isr_int_vec);
2320 readl(adapter->isr_int_vec);
2321
2322 napi_schedule(&sds_ring->napi);
2323
2324 return IRQ_HANDLED;
2325 }
2326
2327 static irqreturn_t netxen_msi_intr(int irq, void *data)
2328 {
2329 struct nx_host_sds_ring *sds_ring = data;
2330 struct netxen_adapter *adapter = sds_ring->adapter;
2331
2332
2333 writel(0xffffffff, adapter->tgt_status_reg);
2334
2335 napi_schedule(&sds_ring->napi);
2336 return IRQ_HANDLED;
2337 }
2338
2339 static irqreturn_t netxen_msix_intr(int irq, void *data)
2340 {
2341 struct nx_host_sds_ring *sds_ring = data;
2342
2343 napi_schedule(&sds_ring->napi);
2344 return IRQ_HANDLED;
2345 }
2346
2347 static int netxen_nic_poll(struct napi_struct *napi, int budget)
2348 {
2349 struct nx_host_sds_ring *sds_ring =
2350 container_of(napi, struct nx_host_sds_ring, napi);
2351
2352 struct netxen_adapter *adapter = sds_ring->adapter;
2353
2354 int tx_complete;
2355 int work_done;
2356
2357 tx_complete = netxen_process_cmd_ring(adapter);
2358
2359 work_done = netxen_process_rcv_ring(sds_ring, budget);
2360
2361 if (!tx_complete)
2362 work_done = budget;
2363
2364 if (work_done < budget) {
2365 napi_complete_done(&sds_ring->napi, work_done);
2366 if (test_bit(__NX_DEV_UP, &adapter->state))
2367 netxen_nic_enable_int(sds_ring);
2368 }
2369
2370 return work_done;
2371 }
2372
2373 static int
2374 nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2375 {
2376 int count;
2377 if (netxen_api_lock(adapter))
2378 return -EIO;
2379
2380 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2381
2382 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2383
2384 netxen_api_unlock(adapter);
2385 return count;
2386 }
2387
2388 static int
2389 nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2390 {
2391 int count, state;
2392 if (netxen_api_lock(adapter))
2393 return -EIO;
2394
2395 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2396 WARN_ON(count == 0);
2397
2398 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2399 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2400
2401 if (count == 0 && state != NX_DEV_FAILED)
2402 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2403
2404 netxen_api_unlock(adapter);
2405 return count;
2406 }
2407
2408 static int
2409 nx_dev_request_aer(struct netxen_adapter *adapter)
2410 {
2411 u32 state;
2412 int ret = -EINVAL;
2413
2414 if (netxen_api_lock(adapter))
2415 return ret;
2416
2417 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2418
2419 if (state == NX_DEV_NEED_AER)
2420 ret = 0;
2421 else if (state == NX_DEV_READY) {
2422 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER);
2423 ret = 0;
2424 }
2425
2426 netxen_api_unlock(adapter);
2427 return ret;
2428 }
2429
2430 int
2431 nx_dev_request_reset(struct netxen_adapter *adapter)
2432 {
2433 u32 state;
2434 int ret = -EINVAL;
2435
2436 if (netxen_api_lock(adapter))
2437 return ret;
2438
2439 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2440
2441 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED)
2442 ret = 0;
2443 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) {
2444 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
2445 adapter->flags |= NETXEN_FW_RESET_OWNER;
2446 ret = 0;
2447 }
2448
2449 netxen_api_unlock(adapter);
2450
2451 return ret;
2452 }
2453
2454 static int
2455 netxen_can_start_firmware(struct netxen_adapter *adapter)
2456 {
2457 int count;
2458 int can_start = 0;
2459
2460 if (netxen_api_lock(adapter)) {
2461 nx_incr_dev_ref_cnt(adapter);
2462 return -1;
2463 }
2464
2465 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2466
2467 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2468 count = 0;
2469
2470 if (count == 0) {
2471 can_start = 1;
2472 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2473 }
2474
2475 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2476
2477 netxen_api_unlock(adapter);
2478
2479 return can_start;
2480 }
2481
2482 static void
2483 netxen_schedule_work(struct netxen_adapter *adapter,
2484 work_func_t func, int delay)
2485 {
2486 INIT_DELAYED_WORK(&adapter->fw_work, func);
2487 schedule_delayed_work(&adapter->fw_work, delay);
2488 }
2489
2490 static void
2491 netxen_cancel_fw_work(struct netxen_adapter *adapter)
2492 {
2493 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2494 msleep(10);
2495
2496 cancel_delayed_work_sync(&adapter->fw_work);
2497 }
2498
2499 static void
2500 netxen_attach_work(struct work_struct *work)
2501 {
2502 struct netxen_adapter *adapter = container_of(work,
2503 struct netxen_adapter, fw_work.work);
2504 struct net_device *netdev = adapter->netdev;
2505 int err = 0;
2506
2507 if (netif_running(netdev)) {
2508 err = netxen_nic_attach(adapter);
2509 if (err)
2510 goto done;
2511
2512 err = netxen_nic_up(adapter, netdev);
2513 if (err) {
2514 netxen_nic_detach(adapter);
2515 goto done;
2516 }
2517
2518 netxen_restore_indev_addr(netdev, NETDEV_UP);
2519 }
2520
2521 netif_device_attach(netdev);
2522
2523 done:
2524 adapter->fw_fail_cnt = 0;
2525 clear_bit(__NX_RESETTING, &adapter->state);
2526 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2527 }
2528
2529 static void
2530 netxen_fwinit_work(struct work_struct *work)
2531 {
2532 struct netxen_adapter *adapter = container_of(work,
2533 struct netxen_adapter, fw_work.work);
2534 int dev_state;
2535 int count;
2536 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
2537 if (adapter->flags & NETXEN_FW_RESET_OWNER) {
2538 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2539 WARN_ON(count == 0);
2540 if (count == 1) {
2541 if (adapter->mdump.md_enabled) {
2542 rtnl_lock();
2543 netxen_dump_fw(adapter);
2544 rtnl_unlock();
2545 }
2546 adapter->flags &= ~NETXEN_FW_RESET_OWNER;
2547 if (netxen_api_lock(adapter)) {
2548 clear_bit(__NX_RESETTING, &adapter->state);
2549 NXWR32(adapter, NX_CRB_DEV_STATE,
2550 NX_DEV_FAILED);
2551 return;
2552 }
2553 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2554 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2555 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2556 dev_state = NX_DEV_COLD;
2557 netxen_api_unlock(adapter);
2558 }
2559 }
2560
2561 switch (dev_state) {
2562 case NX_DEV_COLD:
2563 case NX_DEV_READY:
2564 if (!netxen_start_firmware(adapter)) {
2565 netxen_schedule_work(adapter, netxen_attach_work, 0);
2566 return;
2567 }
2568 break;
2569
2570 case NX_DEV_NEED_RESET:
2571 case NX_DEV_INITALIZING:
2572 netxen_schedule_work(adapter,
2573 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2574 return;
2575
2576 case NX_DEV_FAILED:
2577 default:
2578 nx_incr_dev_ref_cnt(adapter);
2579 break;
2580 }
2581
2582 if (netxen_api_lock(adapter)) {
2583 clear_bit(__NX_RESETTING, &adapter->state);
2584 return;
2585 }
2586 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_FAILED);
2587 netxen_api_unlock(adapter);
2588 dev_err(&adapter->pdev->dev, "%s: Device initialization Failed\n",
2589 adapter->netdev->name);
2590
2591 clear_bit(__NX_RESETTING, &adapter->state);
2592 }
2593
2594 static void
2595 netxen_detach_work(struct work_struct *work)
2596 {
2597 struct netxen_adapter *adapter = container_of(work,
2598 struct netxen_adapter, fw_work.work);
2599 struct net_device *netdev = adapter->netdev;
2600 int ref_cnt = 0, delay;
2601 u32 status;
2602
2603 netif_device_detach(netdev);
2604
2605 netxen_nic_down(adapter, netdev);
2606
2607 rtnl_lock();
2608 netxen_nic_detach(adapter);
2609 rtnl_unlock();
2610
2611 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2612
2613 if (status & NX_RCODE_FATAL_ERROR)
2614 goto err_ret;
2615
2616 if (adapter->temp == NX_TEMP_PANIC)
2617 goto err_ret;
2618
2619 if (!(adapter->flags & NETXEN_FW_RESET_OWNER))
2620 ref_cnt = nx_decr_dev_ref_cnt(adapter);
2621
2622 if (ref_cnt == -EIO)
2623 goto err_ret;
2624
2625 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2626
2627 adapter->fw_wait_cnt = 0;
2628 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
2629
2630 return;
2631
2632 err_ret:
2633 clear_bit(__NX_RESETTING, &adapter->state);
2634 }
2635
2636 static int
2637 netxen_check_health(struct netxen_adapter *adapter)
2638 {
2639 u32 state, heartbit;
2640 u32 peg_status;
2641 struct net_device *netdev = adapter->netdev;
2642
2643 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2644 if (state == NX_DEV_NEED_AER)
2645 return 0;
2646
2647 if (netxen_nic_check_temp(adapter))
2648 goto detach;
2649
2650 if (adapter->need_fw_reset) {
2651 if (nx_dev_request_reset(adapter))
2652 return 0;
2653 goto detach;
2654 }
2655
2656
2657
2658
2659
2660
2661 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) {
2662 adapter->need_fw_reset = 1;
2663 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2664 goto detach;
2665 }
2666
2667 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2668 return 0;
2669
2670 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2671 if (heartbit != adapter->heartbit) {
2672 adapter->heartbit = heartbit;
2673 adapter->fw_fail_cnt = 0;
2674 if (adapter->need_fw_reset)
2675 goto detach;
2676 return 0;
2677 }
2678
2679 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2680 return 0;
2681
2682 if (nx_dev_request_reset(adapter))
2683 return 0;
2684
2685 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2686
2687 dev_err(&netdev->dev, "firmware hang detected\n");
2688 peg_status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2689 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
2690 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
2691 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
2692 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
2693 "PEG_NET_4_PC: 0x%x\n",
2694 peg_status,
2695 NXRD32(adapter, NETXEN_PEG_HALT_STATUS2),
2696 NXRD32(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c),
2697 NXRD32(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c),
2698 NXRD32(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c),
2699 NXRD32(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c),
2700 NXRD32(adapter, NETXEN_CRB_PEG_NET_4 + 0x3c));
2701 if (NX_FWERROR_PEGSTAT1(peg_status) == 0x67)
2702 dev_err(&adapter->pdev->dev,
2703 "Firmware aborted with error code 0x00006700. "
2704 "Device is being reset.\n");
2705 detach:
2706 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2707 !test_and_set_bit(__NX_RESETTING, &adapter->state))
2708 netxen_schedule_work(adapter, netxen_detach_work, 0);
2709 return 1;
2710 }
2711
2712 static void
2713 netxen_fw_poll_work(struct work_struct *work)
2714 {
2715 struct netxen_adapter *adapter = container_of(work,
2716 struct netxen_adapter, fw_work.work);
2717
2718 if (test_bit(__NX_RESETTING, &adapter->state))
2719 goto reschedule;
2720
2721 if (test_bit(__NX_DEV_UP, &adapter->state) &&
2722 !(adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)) {
2723 if (!adapter->has_link_events) {
2724
2725 netxen_nic_handle_phy_intr(adapter);
2726
2727 if (adapter->link_changed)
2728 netxen_nic_set_link_parameters(adapter);
2729 }
2730 }
2731
2732 if (netxen_check_health(adapter))
2733 return;
2734
2735 reschedule:
2736 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2737 }
2738
2739 static ssize_t
2740 netxen_store_bridged_mode(struct device *dev,
2741 struct device_attribute *attr, const char *buf, size_t len)
2742 {
2743 struct net_device *net = to_net_dev(dev);
2744 struct netxen_adapter *adapter = netdev_priv(net);
2745 unsigned long new;
2746 int ret = -EINVAL;
2747
2748 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2749 goto err_out;
2750
2751 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2752 goto err_out;
2753
2754 if (kstrtoul(buf, 2, &new))
2755 goto err_out;
2756
2757 if (!netxen_config_bridged_mode(adapter, !!new))
2758 ret = len;
2759
2760 err_out:
2761 return ret;
2762 }
2763
2764 static ssize_t
2765 netxen_show_bridged_mode(struct device *dev,
2766 struct device_attribute *attr, char *buf)
2767 {
2768 struct net_device *net = to_net_dev(dev);
2769 struct netxen_adapter *adapter;
2770 int bridged_mode = 0;
2771
2772 adapter = netdev_priv(net);
2773
2774 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2775 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2776
2777 return sprintf(buf, "%d\n", bridged_mode);
2778 }
2779
2780 static const struct device_attribute dev_attr_bridged_mode = {
2781 .attr = { .name = "bridged_mode", .mode = 0644 },
2782 .show = netxen_show_bridged_mode,
2783 .store = netxen_store_bridged_mode,
2784 };
2785
2786 static ssize_t
2787 netxen_store_diag_mode(struct device *dev,
2788 struct device_attribute *attr, const char *buf, size_t len)
2789 {
2790 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2791 unsigned long new;
2792
2793 if (kstrtoul(buf, 2, &new))
2794 return -EINVAL;
2795
2796 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2797 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2798
2799 return len;
2800 }
2801
2802 static ssize_t
2803 netxen_show_diag_mode(struct device *dev,
2804 struct device_attribute *attr, char *buf)
2805 {
2806 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2807
2808 return sprintf(buf, "%d\n",
2809 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2810 }
2811
2812 static const struct device_attribute dev_attr_diag_mode = {
2813 .attr = { .name = "diag_mode", .mode = 0644 },
2814 .show = netxen_show_diag_mode,
2815 .store = netxen_store_diag_mode,
2816 };
2817
2818 static int
2819 netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2820 loff_t offset, size_t size)
2821 {
2822 size_t crb_size = 4;
2823
2824 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2825 return -EIO;
2826
2827 if (offset < NETXEN_PCI_CRBSPACE) {
2828 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2829 return -EINVAL;
2830
2831 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2832 NETXEN_PCI_CAMQM_2M_END))
2833 crb_size = 8;
2834 else
2835 return -EINVAL;
2836 }
2837
2838 if ((size != crb_size) || (offset & (crb_size-1)))
2839 return -EINVAL;
2840
2841 return 0;
2842 }
2843
2844 static ssize_t
2845 netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj,
2846 struct bin_attribute *attr,
2847 char *buf, loff_t offset, size_t size)
2848 {
2849 struct device *dev = kobj_to_dev(kobj);
2850 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2851 u32 data;
2852 u64 qmdata;
2853 int ret;
2854
2855 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2856 if (ret != 0)
2857 return ret;
2858
2859 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2860 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2861 NETXEN_PCI_CAMQM_2M_END)) {
2862 netxen_pci_camqm_read_2M(adapter, offset, &qmdata);
2863 memcpy(buf, &qmdata, size);
2864 } else {
2865 data = NXRD32(adapter, offset);
2866 memcpy(buf, &data, size);
2867 }
2868
2869 return size;
2870 }
2871
2872 static ssize_t
2873 netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj,
2874 struct bin_attribute *attr,
2875 char *buf, loff_t offset, size_t size)
2876 {
2877 struct device *dev = kobj_to_dev(kobj);
2878 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2879 u32 data;
2880 u64 qmdata;
2881 int ret;
2882
2883 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2884 if (ret != 0)
2885 return ret;
2886
2887 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2888 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2889 NETXEN_PCI_CAMQM_2M_END)) {
2890 memcpy(&qmdata, buf, size);
2891 netxen_pci_camqm_write_2M(adapter, offset, qmdata);
2892 } else {
2893 memcpy(&data, buf, size);
2894 NXWR32(adapter, offset, data);
2895 }
2896
2897 return size;
2898 }
2899
2900 static int
2901 netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2902 loff_t offset, size_t size)
2903 {
2904 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2905 return -EIO;
2906
2907 if ((size != 8) || (offset & 0x7))
2908 return -EIO;
2909
2910 return 0;
2911 }
2912
2913 static ssize_t
2914 netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj,
2915 struct bin_attribute *attr,
2916 char *buf, loff_t offset, size_t size)
2917 {
2918 struct device *dev = kobj_to_dev(kobj);
2919 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2920 u64 data;
2921 int ret;
2922
2923 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2924 if (ret != 0)
2925 return ret;
2926
2927 if (adapter->pci_mem_read(adapter, offset, &data))
2928 return -EIO;
2929
2930 memcpy(buf, &data, size);
2931
2932 return size;
2933 }
2934
2935 static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj,
2936 struct bin_attribute *attr, char *buf,
2937 loff_t offset, size_t size)
2938 {
2939 struct device *dev = kobj_to_dev(kobj);
2940 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2941 u64 data;
2942 int ret;
2943
2944 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2945 if (ret != 0)
2946 return ret;
2947
2948 memcpy(&data, buf, size);
2949
2950 if (adapter->pci_mem_write(adapter, offset, data))
2951 return -EIO;
2952
2953 return size;
2954 }
2955
2956
2957 static const struct bin_attribute bin_attr_crb = {
2958 .attr = { .name = "crb", .mode = 0644 },
2959 .size = 0,
2960 .read = netxen_sysfs_read_crb,
2961 .write = netxen_sysfs_write_crb,
2962 };
2963
2964 static const struct bin_attribute bin_attr_mem = {
2965 .attr = { .name = "mem", .mode = 0644 },
2966 .size = 0,
2967 .read = netxen_sysfs_read_mem,
2968 .write = netxen_sysfs_write_mem,
2969 };
2970
2971 static ssize_t
2972 netxen_sysfs_read_dimm(struct file *filp, struct kobject *kobj,
2973 struct bin_attribute *attr,
2974 char *buf, loff_t offset, size_t size)
2975 {
2976 struct device *dev = kobj_to_dev(kobj);
2977 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2978 struct net_device *netdev = adapter->netdev;
2979 struct netxen_dimm_cfg dimm;
2980 u8 dw, rows, cols, banks, ranks;
2981 u32 val;
2982
2983 if (size < attr->size) {
2984 netdev_err(netdev, "Invalid size\n");
2985 return -EINVAL;
2986 }
2987
2988 memset(&dimm, 0, sizeof(struct netxen_dimm_cfg));
2989 val = NXRD32(adapter, NETXEN_DIMM_CAPABILITY);
2990
2991
2992 if (val & NETXEN_DIMM_VALID_FLAG) {
2993 netdev_err(netdev, "Invalid DIMM flag\n");
2994 dimm.presence = 0xff;
2995 goto out;
2996 }
2997
2998 rows = NETXEN_DIMM_NUMROWS(val);
2999 cols = NETXEN_DIMM_NUMCOLS(val);
3000 ranks = NETXEN_DIMM_NUMRANKS(val);
3001 banks = NETXEN_DIMM_NUMBANKS(val);
3002 dw = NETXEN_DIMM_DATAWIDTH(val);
3003
3004 dimm.presence = (val & NETXEN_DIMM_PRESENT);
3005
3006
3007 if (!dimm.presence) {
3008 netdev_err(netdev, "DIMM not present\n");
3009 goto out;
3010 }
3011
3012 dimm.dimm_type = NETXEN_DIMM_TYPE(val);
3013
3014 switch (dimm.dimm_type) {
3015 case NETXEN_DIMM_TYPE_RDIMM:
3016 case NETXEN_DIMM_TYPE_UDIMM:
3017 case NETXEN_DIMM_TYPE_SO_DIMM:
3018 case NETXEN_DIMM_TYPE_Micro_DIMM:
3019 case NETXEN_DIMM_TYPE_Mini_RDIMM:
3020 case NETXEN_DIMM_TYPE_Mini_UDIMM:
3021 break;
3022 default:
3023 netdev_err(netdev, "Invalid DIMM type %x\n", dimm.dimm_type);
3024 goto out;
3025 }
3026
3027 if (val & NETXEN_DIMM_MEMTYPE_DDR2_SDRAM)
3028 dimm.mem_type = NETXEN_DIMM_MEM_DDR2_SDRAM;
3029 else
3030 dimm.mem_type = NETXEN_DIMM_MEMTYPE(val);
3031
3032 if (val & NETXEN_DIMM_SIZE) {
3033 dimm.size = NETXEN_DIMM_STD_MEM_SIZE;
3034 goto out;
3035 }
3036
3037 if (!rows) {
3038 netdev_err(netdev, "Invalid no of rows %x\n", rows);
3039 goto out;
3040 }
3041
3042 if (!cols) {
3043 netdev_err(netdev, "Invalid no of columns %x\n", cols);
3044 goto out;
3045 }
3046
3047 if (!banks) {
3048 netdev_err(netdev, "Invalid no of banks %x\n", banks);
3049 goto out;
3050 }
3051
3052 ranks += 1;
3053
3054 switch (dw) {
3055 case 0x0:
3056 dw = 32;
3057 break;
3058 case 0x1:
3059 dw = 33;
3060 break;
3061 case 0x2:
3062 dw = 36;
3063 break;
3064 case 0x3:
3065 dw = 64;
3066 break;
3067 case 0x4:
3068 dw = 72;
3069 break;
3070 case 0x5:
3071 dw = 80;
3072 break;
3073 case 0x6:
3074 dw = 128;
3075 break;
3076 case 0x7:
3077 dw = 144;
3078 break;
3079 default:
3080 netdev_err(netdev, "Invalid data-width %x\n", dw);
3081 goto out;
3082 }
3083
3084 dimm.size = ((1 << rows) * (1 << cols) * dw * banks * ranks) / 8;
3085
3086 dimm.size = (dimm.size) / 0x100000;
3087 out:
3088 memcpy(buf, &dimm, sizeof(struct netxen_dimm_cfg));
3089 return sizeof(struct netxen_dimm_cfg);
3090
3091 }
3092
3093 static const struct bin_attribute bin_attr_dimm = {
3094 .attr = { .name = "dimm", .mode = 0644 },
3095 .size = sizeof(struct netxen_dimm_cfg),
3096 .read = netxen_sysfs_read_dimm,
3097 };
3098
3099
3100 static void
3101 netxen_create_sysfs_entries(struct netxen_adapter *adapter)
3102 {
3103 struct device *dev = &adapter->pdev->dev;
3104
3105 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
3106
3107 if (device_create_file(dev, &dev_attr_bridged_mode)) {
3108 dev_warn(dev,
3109 "failed to create bridged_mode sysfs entry\n");
3110 }
3111 }
3112 }
3113
3114 static void
3115 netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
3116 {
3117 struct device *dev = &adapter->pdev->dev;
3118
3119 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
3120 device_remove_file(dev, &dev_attr_bridged_mode);
3121 }
3122
3123 static void
3124 netxen_create_diag_entries(struct netxen_adapter *adapter)
3125 {
3126 struct pci_dev *pdev = adapter->pdev;
3127 struct device *dev;
3128
3129 dev = &pdev->dev;
3130 if (device_create_file(dev, &dev_attr_diag_mode))
3131 dev_info(dev, "failed to create diag_mode sysfs entry\n");
3132 if (device_create_bin_file(dev, &bin_attr_crb))
3133 dev_info(dev, "failed to create crb sysfs entry\n");
3134 if (device_create_bin_file(dev, &bin_attr_mem))
3135 dev_info(dev, "failed to create mem sysfs entry\n");
3136 if (device_create_bin_file(dev, &bin_attr_dimm))
3137 dev_info(dev, "failed to create dimm sysfs entry\n");
3138 }
3139
3140
3141 static void
3142 netxen_remove_diag_entries(struct netxen_adapter *adapter)
3143 {
3144 struct pci_dev *pdev = adapter->pdev;
3145 struct device *dev = &pdev->dev;
3146
3147 device_remove_file(dev, &dev_attr_diag_mode);
3148 device_remove_bin_file(dev, &bin_attr_crb);
3149 device_remove_bin_file(dev, &bin_attr_mem);
3150 device_remove_bin_file(dev, &bin_attr_dimm);
3151 }
3152
3153 #ifdef CONFIG_INET
3154
3155 #define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
3156
3157 static int
3158 netxen_destip_supported(struct netxen_adapter *adapter)
3159 {
3160 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
3161 return 0;
3162
3163 if (adapter->ahw.cut_through)
3164 return 0;
3165
3166 return 1;
3167 }
3168
3169 static void
3170 netxen_free_ip_list(struct netxen_adapter *adapter, bool master)
3171 {
3172 struct nx_ip_list *cur, *tmp_cur;
3173
3174 list_for_each_entry_safe(cur, tmp_cur, &adapter->ip_list, list) {
3175 if (master) {
3176 if (cur->master) {
3177 netxen_config_ipaddr(adapter, cur->ip_addr,
3178 NX_IP_DOWN);
3179 list_del(&cur->list);
3180 kfree(cur);
3181 }
3182 } else {
3183 netxen_config_ipaddr(adapter, cur->ip_addr, NX_IP_DOWN);
3184 list_del(&cur->list);
3185 kfree(cur);
3186 }
3187 }
3188 }
3189
3190 static bool
3191 netxen_list_config_ip(struct netxen_adapter *adapter,
3192 struct in_ifaddr *ifa, unsigned long event)
3193 {
3194 struct net_device *dev;
3195 struct nx_ip_list *cur, *tmp_cur;
3196 struct list_head *head;
3197 bool ret = false;
3198
3199 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3200
3201 if (dev == NULL)
3202 goto out;
3203
3204 switch (event) {
3205 case NX_IP_UP:
3206 list_for_each(head, &adapter->ip_list) {
3207 cur = list_entry(head, struct nx_ip_list, list);
3208
3209 if (cur->ip_addr == ifa->ifa_address)
3210 goto out;
3211 }
3212
3213 cur = kzalloc(sizeof(struct nx_ip_list), GFP_ATOMIC);
3214 if (cur == NULL)
3215 goto out;
3216 if (is_vlan_dev(dev))
3217 dev = vlan_dev_real_dev(dev);
3218 cur->master = !!netif_is_bond_master(dev);
3219 cur->ip_addr = ifa->ifa_address;
3220 list_add_tail(&cur->list, &adapter->ip_list);
3221 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
3222 ret = true;
3223 break;
3224 case NX_IP_DOWN:
3225 list_for_each_entry_safe(cur, tmp_cur,
3226 &adapter->ip_list, list) {
3227 if (cur->ip_addr == ifa->ifa_address) {
3228 list_del(&cur->list);
3229 kfree(cur);
3230 netxen_config_ipaddr(adapter, ifa->ifa_address,
3231 NX_IP_DOWN);
3232 ret = true;
3233 break;
3234 }
3235 }
3236 }
3237 out:
3238 return ret;
3239 }
3240
3241 static void
3242 netxen_config_indev_addr(struct netxen_adapter *adapter,
3243 struct net_device *dev, unsigned long event)
3244 {
3245 struct in_device *indev;
3246 struct in_ifaddr *ifa;
3247
3248 if (!netxen_destip_supported(adapter))
3249 return;
3250
3251 indev = in_dev_get(dev);
3252 if (!indev)
3253 return;
3254
3255 rcu_read_lock();
3256 in_dev_for_each_ifa_rcu(ifa, indev) {
3257 switch (event) {
3258 case NETDEV_UP:
3259 netxen_list_config_ip(adapter, ifa, NX_IP_UP);
3260 break;
3261 case NETDEV_DOWN:
3262 netxen_list_config_ip(adapter, ifa, NX_IP_DOWN);
3263 break;
3264 default:
3265 break;
3266 }
3267 }
3268 rcu_read_unlock();
3269 in_dev_put(indev);
3270 }
3271
3272 static void
3273 netxen_restore_indev_addr(struct net_device *netdev, unsigned long event)
3274
3275 {
3276 struct netxen_adapter *adapter = netdev_priv(netdev);
3277 struct nx_ip_list *pos, *tmp_pos;
3278 unsigned long ip_event;
3279
3280 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
3281 netxen_config_indev_addr(adapter, netdev, event);
3282
3283 list_for_each_entry_safe(pos, tmp_pos, &adapter->ip_list, list) {
3284 netxen_config_ipaddr(adapter, pos->ip_addr, ip_event);
3285 }
3286 }
3287
3288 static inline bool
3289 netxen_config_checkdev(struct net_device *dev)
3290 {
3291 struct netxen_adapter *adapter;
3292
3293 if (!is_netxen_netdev(dev))
3294 return false;
3295 adapter = netdev_priv(dev);
3296 if (!adapter)
3297 return false;
3298 if (!netxen_destip_supported(adapter))
3299 return false;
3300 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
3301 return false;
3302
3303 return true;
3304 }
3305
3306
3307
3308
3309
3310
3311 static void netxen_config_master(struct net_device *dev, unsigned long event)
3312 {
3313 struct net_device *master, *slave;
3314 struct netxen_adapter *adapter = netdev_priv(dev);
3315
3316 rcu_read_lock();
3317 master = netdev_master_upper_dev_get_rcu(dev);
3318
3319
3320
3321
3322
3323
3324 if (master && netif_is_bond_master(master) &&
3325 !netif_is_bond_slave(dev)) {
3326 netxen_config_indev_addr(adapter, master, event);
3327 for_each_netdev_rcu(&init_net, slave)
3328 if (is_vlan_dev(slave) &&
3329 vlan_dev_real_dev(slave) == master)
3330 netxen_config_indev_addr(adapter, slave, event);
3331 }
3332 rcu_read_unlock();
3333
3334
3335
3336
3337
3338 if (!master && dev->priv_flags & IFF_BONDING)
3339 netxen_free_ip_list(adapter, true);
3340 }
3341
3342 static int netxen_netdev_event(struct notifier_block *this,
3343 unsigned long event, void *ptr)
3344 {
3345 struct netxen_adapter *adapter;
3346 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
3347 struct net_device *orig_dev = dev;
3348 struct net_device *slave;
3349
3350 recheck:
3351 if (dev == NULL)
3352 goto done;
3353
3354 if (is_vlan_dev(dev)) {
3355 dev = vlan_dev_real_dev(dev);
3356 goto recheck;
3357 }
3358 if (event == NETDEV_UP || event == NETDEV_DOWN) {
3359
3360 if (netif_is_bond_master(dev)) {
3361 rcu_read_lock();
3362 for_each_netdev_in_bond_rcu(dev, slave) {
3363 if (!netxen_config_checkdev(slave))
3364 continue;
3365 adapter = netdev_priv(slave);
3366 netxen_config_indev_addr(adapter,
3367 orig_dev, event);
3368 }
3369 rcu_read_unlock();
3370 } else {
3371 if (!netxen_config_checkdev(dev))
3372 goto done;
3373 adapter = netdev_priv(dev);
3374
3375 if (orig_dev == dev)
3376 netxen_config_master(dev, event);
3377 netxen_config_indev_addr(adapter, orig_dev, event);
3378 }
3379 }
3380 done:
3381 return NOTIFY_DONE;
3382 }
3383
3384 static int
3385 netxen_inetaddr_event(struct notifier_block *this,
3386 unsigned long event, void *ptr)
3387 {
3388 struct netxen_adapter *adapter;
3389 struct net_device *dev, *slave;
3390 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3391 unsigned long ip_event;
3392
3393 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3394 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
3395 recheck:
3396 if (dev == NULL)
3397 goto done;
3398
3399 if (is_vlan_dev(dev)) {
3400 dev = vlan_dev_real_dev(dev);
3401 goto recheck;
3402 }
3403 if (event == NETDEV_UP || event == NETDEV_DOWN) {
3404
3405 if (netif_is_bond_master(dev)) {
3406 rcu_read_lock();
3407 for_each_netdev_in_bond_rcu(dev, slave) {
3408 if (!netxen_config_checkdev(slave))
3409 continue;
3410 adapter = netdev_priv(slave);
3411 netxen_list_config_ip(adapter, ifa, ip_event);
3412 }
3413 rcu_read_unlock();
3414 } else {
3415 if (!netxen_config_checkdev(dev))
3416 goto done;
3417 adapter = netdev_priv(dev);
3418 netxen_list_config_ip(adapter, ifa, ip_event);
3419 }
3420 }
3421 done:
3422 return NOTIFY_DONE;
3423 }
3424
3425 static struct notifier_block netxen_netdev_cb = {
3426 .notifier_call = netxen_netdev_event,
3427 };
3428
3429 static struct notifier_block netxen_inetaddr_cb = {
3430 .notifier_call = netxen_inetaddr_event,
3431 };
3432 #else
3433 static void
3434 netxen_restore_indev_addr(struct net_device *dev, unsigned long event)
3435 { }
3436 static void
3437 netxen_free_ip_list(struct netxen_adapter *adapter, bool master)
3438 { }
3439 #endif
3440
3441 static const struct pci_error_handlers netxen_err_handler = {
3442 .error_detected = netxen_io_error_detected,
3443 .slot_reset = netxen_io_slot_reset,
3444 };
3445
3446 static SIMPLE_DEV_PM_OPS(netxen_nic_pm_ops,
3447 netxen_nic_suspend,
3448 netxen_nic_resume);
3449
3450 static struct pci_driver netxen_driver = {
3451 .name = netxen_nic_driver_name,
3452 .id_table = netxen_pci_tbl,
3453 .probe = netxen_nic_probe,
3454 .remove = netxen_nic_remove,
3455 .driver.pm = &netxen_nic_pm_ops,
3456 .shutdown = netxen_nic_shutdown,
3457 .err_handler = &netxen_err_handler
3458 };
3459
3460 static int __init netxen_init_module(void)
3461 {
3462 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
3463
3464 #ifdef CONFIG_INET
3465 register_netdevice_notifier(&netxen_netdev_cb);
3466 register_inetaddr_notifier(&netxen_inetaddr_cb);
3467 #endif
3468 return pci_register_driver(&netxen_driver);
3469 }
3470
3471 module_init(netxen_init_module);
3472
3473 static void __exit netxen_exit_module(void)
3474 {
3475 pci_unregister_driver(&netxen_driver);
3476
3477 #ifdef CONFIG_INET
3478 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
3479 unregister_netdevice_notifier(&netxen_netdev_cb);
3480 #endif
3481 }
3482
3483 module_exit(netxen_exit_module);
