| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Dhananjay Phadke | 9104 | 58.33% | 100 | 43.86% |
| Amit Kumar Salecha | 1776 | 11.38% | 28 | 12.28% |
| Manish Chopra | 767 | 4.91% | 6 | 2.63% |
| Rajesh K Borundia | 767 | 4.91% | 7 | 3.07% |
| Amit S. Kale | 738 | 4.73% | 7 | 3.07% |
| Sucheta Chakraborty | 560 | 3.59% | 2 | 0.88% |
| Nikolay Aleksandrov | 539 | 3.45% | 2 | 0.88% |
| Narender Kumar | 371 | 2.38% | 4 | 1.75% |
| Stephen Hemminger | 187 | 1.20% | 9 | 3.95% |
| Michał Mirosław | 157 | 1.01% | 2 | 0.88% |
| Mithlesh Thukral | 139 | 0.89% | 4 | 1.75% |
| Sritej Velaga | 105 | 0.67% | 1 | 0.44% |
| Shahed Shaikh | 87 | 0.56% | 1 | 0.44% |
| Eric Dumazet | 41 | 0.26% | 6 | 2.63% |
| Jarod Wilson | 31 | 0.20% | 1 | 0.44% |
| Chris Wright | 20 | 0.13% | 1 | 0.44% |
| David S. Miller | 19 | 0.12% | 1 | 0.44% |
| Randy Dunlap | 18 | 0.12% | 2 | 0.88% |
| Florian Westphal | 16 | 0.10% | 2 | 0.88% |
| Sony Chacko | 15 | 0.10% | 1 | 0.44% |
| Al Viro | 14 | 0.09% | 1 | 0.44% |
| Yang Hongyang | 14 | 0.09% | 1 | 0.44% |
| Parav Pandit | 12 | 0.08% | 1 | 0.44% |
| Yijing Wang | 12 | 0.08% | 2 | 0.88% |
| Vladimir Zapolskiy | 10 | 0.06% | 1 | 0.44% |
| Ian Campbell | 10 | 0.06% | 2 | 0.88% |
| Joe Perches | 8 | 0.05% | 3 | 1.32% |
| Jiri Pirko | 7 | 0.04% | 4 | 1.75% |
| Dan Carpenter | 6 | 0.04% | 1 | 0.44% |
| Benoit Taine | 6 | 0.04% | 1 | 0.44% |
| Amitoj Kaur Chawla | 5 | 0.03% | 1 | 0.44% |
| Bhumika Goyal | 5 | 0.03% | 2 | 0.88% |
| Arnaldo Carvalho de Melo | 5 | 0.03% | 2 | 0.88% |
| Jeff Garzik | 4 | 0.03% | 2 | 0.88% |
| Alexander Gordeev | 4 | 0.03% | 1 | 0.44% |
| Harvey Harrison | 4 | 0.03% | 1 | 0.44% |
| Tejun Heo | 3 | 0.02% | 1 | 0.44% |
| Wilfried Klaebe | 3 | 0.02% | 1 | 0.44% |
| Matthew Wilcox | 2 | 0.01% | 1 | 0.44% |
| Santosh Nayak | 2 | 0.01% | 1 | 0.44% |
| David Howells | 2 | 0.01% | 1 | 0.44% |
| Jingoo Han | 2 | 0.01% | 1 | 0.44% |
| Thomas Gleixner | 2 | 0.01% | 1 | 0.44% |
| Roel Kluin | 1 | 0.01% | 1 | 0.44% |
| Wang Chen | 1 | 0.01% | 1 | 0.44% |
| Patrick McHardy | 1 | 0.01% | 1 | 0.44% |
| Michal Schmidt | 1 | 0.01% | 1 | 0.44% |
| Eric W. Biedermann | 1 | 0.01% | 1 | 0.44% |
| Johannes Berg | 1 | 0.01% | 1 | 0.44% |
| Danny Kukawka | 1 | 0.01% | 1 | 0.44% |
| Javier Martinez Canillas | 1 | 0.01% | 1 | 0.44% |
| Total | 15607 | 228 |
// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (C) 2003 - 2009 NetXen, Inc. * Copyright (C) 2009 - QLogic Corporation. * All rights reserved. */ #include <linux/slab.h> #include <linux/vmalloc.h> #include <linux/interrupt.h> #include "netxen_nic_hw.h" #include "netxen_nic.h" #include <linux/dma-mapping.h> #include <linux/if_vlan.h> #include <net/ip.h> #include <linux/ipv6.h> #include <linux/inetdevice.h> #include <linux/sysfs.h> #include <linux/aer.h> MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Intelligent Ethernet Driver"); MODULE_LICENSE("GPL"); MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID); MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME); char netxen_nic_driver_name[] = "netxen_nic"; static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v" NETXEN_NIC_LINUX_VERSIONID; static int port_mode = NETXEN_PORT_MODE_AUTO_NEG; /* Default to restricted 1G auto-neg mode */ static int wol_port_mode = 5; static int use_msi = 1; static int use_msi_x = 1; static int auto_fw_reset = AUTO_FW_RESET_ENABLED; module_param(auto_fw_reset, int, 0644); MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled"); static int netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent); static void netxen_nic_remove(struct pci_dev *pdev); static int netxen_nic_open(struct net_device *netdev); static int netxen_nic_close(struct net_device *netdev); static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *, struct net_device *); static void netxen_tx_timeout(struct net_device *netdev); static void netxen_tx_timeout_task(struct work_struct *work); static void netxen_fw_poll_work(struct work_struct *work); static void netxen_schedule_work(struct netxen_adapter *adapter, work_func_t func, int delay); static void netxen_cancel_fw_work(struct netxen_adapter *adapter); static int netxen_nic_poll(struct napi_struct *napi, int budget); static void netxen_create_sysfs_entries(struct netxen_adapter *adapter); static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter); static void netxen_create_diag_entries(struct netxen_adapter *adapter); static void netxen_remove_diag_entries(struct netxen_adapter *adapter); static int nx_dev_request_aer(struct netxen_adapter *adapter); static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter); static int netxen_can_start_firmware(struct netxen_adapter *adapter); static irqreturn_t netxen_intr(int irq, void *data); static irqreturn_t netxen_msi_intr(int irq, void *data); static irqreturn_t netxen_msix_intr(int irq, void *data); static void netxen_free_ip_list(struct netxen_adapter *, bool); static void netxen_restore_indev_addr(struct net_device *dev, unsigned long); static void netxen_nic_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats); static int netxen_nic_set_mac(struct net_device *netdev, void *p); /* PCI Device ID Table */ #define ENTRY(device) \ {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \ .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0} static const struct pci_device_id netxen_pci_tbl[] = { ENTRY(PCI_DEVICE_ID_NX2031_10GXSR), ENTRY(PCI_DEVICE_ID_NX2031_10GCX4), ENTRY(PCI_DEVICE_ID_NX2031_4GCU), ENTRY(PCI_DEVICE_ID_NX2031_IMEZ), ENTRY(PCI_DEVICE_ID_NX2031_HMEZ), ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT), ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2), ENTRY(PCI_DEVICE_ID_NX3031), {0,} }; MODULE_DEVICE_TABLE(pci, netxen_pci_tbl); static uint32_t crb_cmd_producer[4] = { CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1, CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3 }; void netxen_nic_update_cmd_producer(struct netxen_adapter *adapter, struct nx_host_tx_ring *tx_ring) { NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer); } static uint32_t crb_cmd_consumer[4] = { CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1, CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3 }; static inline void netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter, struct nx_host_tx_ring *tx_ring) { NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer); } static uint32_t msi_tgt_status[8] = { ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1, ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3, ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5, ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7 }; static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG; static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring) { struct netxen_adapter *adapter = sds_ring->adapter; NXWRIO(adapter, sds_ring->crb_intr_mask, 0); } static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring) { struct netxen_adapter *adapter = sds_ring->adapter; NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1); if (!NETXEN_IS_MSI_FAMILY(adapter)) NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff); } static int netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count) { int size = sizeof(struct nx_host_sds_ring) * count; recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL); return recv_ctx->sds_rings == NULL; } static void netxen_free_sds_rings(struct netxen_recv_context *recv_ctx) { kfree(recv_ctx->sds_rings); recv_ctx->sds_rings = NULL; } static int netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev) { int ring; struct nx_host_sds_ring *sds_ring; struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings)) return -ENOMEM; for (ring = 0; ring < adapter->max_sds_rings; ring++) { sds_ring = &recv_ctx->sds_rings[ring]; netif_napi_add(netdev, &sds_ring->napi, netxen_nic_poll, NAPI_POLL_WEIGHT); } return 0; } static void netxen_napi_del(struct netxen_adapter *adapter) { int ring; struct nx_host_sds_ring *sds_ring; struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; for (ring = 0; ring < adapter->max_sds_rings; ring++) { sds_ring = &recv_ctx->sds_rings[ring]; netif_napi_del(&sds_ring->napi); } netxen_free_sds_rings(&adapter->recv_ctx); } static void netxen_napi_enable(struct netxen_adapter *adapter) { int ring; struct nx_host_sds_ring *sds_ring; struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; for (ring = 0; ring < adapter->max_sds_rings; ring++) { sds_ring = &recv_ctx->sds_rings[ring]; napi_enable(&sds_ring->napi); netxen_nic_enable_int(sds_ring); } } static void netxen_napi_disable(struct netxen_adapter *adapter) { int ring; struct nx_host_sds_ring *sds_ring; struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; for (ring = 0; ring < adapter->max_sds_rings; ring++) { sds_ring = &recv_ctx->sds_rings[ring]; netxen_nic_disable_int(sds_ring); napi_synchronize(&sds_ring->napi); napi_disable(&sds_ring->napi); } } static int nx_set_dma_mask(struct netxen_adapter *adapter) { struct pci_dev *pdev = adapter->pdev; uint64_t mask, cmask; adapter->pci_using_dac = 0; mask = DMA_BIT_MASK(32); cmask = DMA_BIT_MASK(32); if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { #ifndef CONFIG_IA64 mask = DMA_BIT_MASK(35); #endif } else { mask = DMA_BIT_MASK(39); cmask = mask; } if (pci_set_dma_mask(pdev, mask) == 0 && pci_set_consistent_dma_mask(pdev, cmask) == 0) { adapter->pci_using_dac = 1; return 0; } return -EIO; } /* Update addressable range if firmware supports it */ static int nx_update_dma_mask(struct netxen_adapter *adapter) { int change, shift, err; uint64_t mask, old_mask, old_cmask; struct pci_dev *pdev = adapter->pdev; change = 0; shift = NXRD32(adapter, CRB_DMA_SHIFT); if (shift > 32) return 0; if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9)) change = 1; else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4)) change = 1; if (change) { old_mask = pdev->dma_mask; old_cmask = pdev->dev.coherent_dma_mask; mask = DMA_BIT_MASK(32+shift); err = pci_set_dma_mask(pdev, mask); if (err) goto err_out; if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { err = pci_set_consistent_dma_mask(pdev, mask); if (err) goto err_out; } dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift); } return 0; err_out: pci_set_dma_mask(pdev, old_mask); pci_set_consistent_dma_mask(pdev, old_cmask); return err; } static int netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot) { u32 val, timeout; if (first_boot == 0x55555555) { /* This is the first boot after power up */ NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC); if (!NX_IS_REVISION_P2(adapter->ahw.revision_id)) return 0; /* PCI bus master workaround */ first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4)); if (!(first_boot & 0x4)) { first_boot |= 0x4; NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot); NXRD32(adapter, NETXEN_PCIE_REG(0x4)); } /* This is the first boot after power up */ first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET); if (first_boot != 0x80000f) { /* clear the register for future unloads/loads */ NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0); return -EIO; } /* Start P2 boot loader */ val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE); NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1); timeout = 0; do { msleep(1); val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc)); if (++timeout > 5000) return -EIO; } while (val == NETXEN_BDINFO_MAGIC); } return 0; } static void netxen_set_port_mode(struct netxen_adapter *adapter) { u32 val, data; val = adapter->ahw.board_type; if ((val == NETXEN_BRDTYPE_P3_HMEZ) || (val == NETXEN_BRDTYPE_P3_XG_LOM)) { if (port_mode == NETXEN_PORT_MODE_802_3_AP) { data = NETXEN_PORT_MODE_802_3_AP; NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); } else if (port_mode == NETXEN_PORT_MODE_XG) { data = NETXEN_PORT_MODE_XG; NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) { data = NETXEN_PORT_MODE_AUTO_NEG_1G; NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) { data = NETXEN_PORT_MODE_AUTO_NEG_XG; NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); } else { data = NETXEN_PORT_MODE_AUTO_NEG; NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); } if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) && (wol_port_mode != NETXEN_PORT_MODE_XG) && (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) && (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) { wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG; } NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode); } } #define PCI_CAP_ID_GEN 0x10 static void netxen_pcie_strap_init(struct netxen_adapter *adapter) { u32 pdevfuncsave; u32 c8c9value = 0; u32 chicken = 0; u32 control = 0; int i, pos; struct pci_dev *pdev; pdev = adapter->pdev; chicken = NXRD32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3)); /* clear chicken3.25:24 */ chicken &= 0xFCFFFFFF; /* * if gen1 and B0, set F1020 - if gen 2, do nothing * if gen2 set to F1000 */ pos = pci_find_capability(pdev, PCI_CAP_ID_GEN); if (pos == 0xC0) { pci_read_config_dword(pdev, pos + 0x10, &control); if ((control & 0x000F0000) != 0x00020000) { /* set chicken3.24 if gen1 */ chicken |= 0x01000000; } dev_info(&adapter->pdev->dev, "Gen2 strapping detected\n"); c8c9value = 0xF1000; } else { /* set chicken3.24 if gen1 */ chicken |= 0x01000000; dev_info(&adapter->pdev->dev, "Gen1 strapping detected\n"); if (adapter->ahw.revision_id == NX_P3_B0) c8c9value = 0xF1020; else c8c9value = 0; } NXWR32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3), chicken); if (!c8c9value) return; pdevfuncsave = pdev->devfn; if (pdevfuncsave & 0x07) return; for (i = 0; i < 8; i++) { pci_read_config_dword(pdev, pos + 8, &control); pci_read_config_dword(pdev, pos + 8, &control); pci_write_config_dword(pdev, pos + 8, c8c9value); pdev->devfn++; } pdev->devfn = pdevfuncsave; } static void netxen_set_msix_bit(struct pci_dev *pdev, int enable) { u32 control; if (pdev->msix_cap) { pci_read_config_dword(pdev, pdev->msix_cap, &control); if (enable) control |= PCI_MSIX_FLAGS_ENABLE; else control = 0; pci_write_config_dword(pdev, pdev->msix_cap, control); } } static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count) { int i; for (i = 0; i < count; i++) adapter->msix_entries[i].entry = i; } static int netxen_read_mac_addr(struct netxen_adapter *adapter) { int i; unsigned char *p; u64 mac_addr; struct net_device *netdev = adapter->netdev; struct pci_dev *pdev = adapter->pdev; if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0) return -EIO; } else { if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0) return -EIO; } p = (unsigned char *)&mac_addr; for (i = 0; i < 6; i++) netdev->dev_addr[i] = *(p + 5 - i); memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len); /* set station address */ if (!is_valid_ether_addr(netdev->dev_addr)) dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr); return 0; } static int netxen_nic_set_mac(struct net_device *netdev, void *p) { struct netxen_adapter *adapter = netdev_priv(netdev); struct sockaddr *addr = p; if (!is_valid_ether_addr(addr->sa_data)) return -EADDRNOTAVAIL; if (netif_running(netdev)) { netif_device_detach(netdev); netxen_napi_disable(adapter); } memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len); memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); adapter->macaddr_set(adapter, addr->sa_data); if (netif_running(netdev)) { netif_device_attach(netdev); netxen_napi_enable(adapter); } return 0; } static void netxen_set_multicast_list(struct net_device *dev) { struct netxen_adapter *adapter = netdev_priv(dev); adapter->set_multi(dev); } static netdev_features_t netxen_fix_features(struct net_device *dev, netdev_features_t features) { if (!(features & NETIF_F_RXCSUM)) { netdev_info(dev, "disabling LRO as RXCSUM is off\n"); features &= ~NETIF_F_LRO; } return features; } static int netxen_set_features(struct net_device *dev, netdev_features_t features) { struct netxen_adapter *adapter = netdev_priv(dev); int hw_lro; if (!((dev->features ^ features) & NETIF_F_LRO)) return 0; hw_lro = (features & NETIF_F_LRO) ? NETXEN_NIC_LRO_ENABLED : NETXEN_NIC_LRO_DISABLED; if (netxen_config_hw_lro(adapter, hw_lro)) return -EIO; if (!(features & NETIF_F_LRO) && netxen_send_lro_cleanup(adapter)) return -EIO; return 0; } static const struct net_device_ops netxen_netdev_ops = { .ndo_open = netxen_nic_open, .ndo_stop = netxen_nic_close, .ndo_start_xmit = netxen_nic_xmit_frame, .ndo_get_stats64 = netxen_nic_get_stats, .ndo_validate_addr = eth_validate_addr, .ndo_set_rx_mode = netxen_set_multicast_list, .ndo_set_mac_address = netxen_nic_set_mac, .ndo_change_mtu = netxen_nic_change_mtu, .ndo_tx_timeout = netxen_tx_timeout, .ndo_fix_features = netxen_fix_features, .ndo_set_features = netxen_set_features, }; static inline bool netxen_function_zero(struct pci_dev *pdev) { return (PCI_FUNC(pdev->devfn) == 0) ? true : false; } static inline void netxen_set_interrupt_mode(struct netxen_adapter *adapter, u32 mode) { NXWR32(adapter, NETXEN_INTR_MODE_REG, mode); } static inline u32 netxen_get_interrupt_mode(struct netxen_adapter *adapter) { return NXRD32(adapter, NETXEN_INTR_MODE_REG); } static void netxen_initialize_interrupt_registers(struct netxen_adapter *adapter) { struct netxen_legacy_intr_set *legacy_intrp; u32 tgt_status_reg, int_state_reg; if (adapter->ahw.revision_id >= NX_P3_B0) legacy_intrp = &legacy_intr[adapter->ahw.pci_func]; else legacy_intrp = &legacy_intr[0]; tgt_status_reg = legacy_intrp->tgt_status_reg; int_state_reg = ISR_INT_STATE_REG; adapter->int_vec_bit = legacy_intrp->int_vec_bit; adapter->tgt_status_reg = netxen_get_ioaddr(adapter, tgt_status_reg); adapter->tgt_mask_reg = netxen_get_ioaddr(adapter, legacy_intrp->tgt_mask_reg); adapter->pci_int_reg = netxen_get_ioaddr(adapter, legacy_intrp->pci_int_reg); adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR); if (adapter->ahw.revision_id >= NX_P3_B1) adapter->crb_int_state_reg = netxen_get_ioaddr(adapter, int_state_reg); else adapter->crb_int_state_reg = netxen_get_ioaddr(adapter, CRB_INT_VECTOR); } static int netxen_setup_msi_interrupts(struct netxen_adapter *adapter, int num_msix) { struct pci_dev *pdev = adapter->pdev; u32 value; int err; if (adapter->msix_supported) { netxen_init_msix_entries(adapter, num_msix); err = pci_enable_msix_range(pdev, adapter->msix_entries, num_msix, num_msix); if (err > 0) { adapter->flags |= NETXEN_NIC_MSIX_ENABLED; netxen_set_msix_bit(pdev, 1); if (adapter->rss_supported) adapter->max_sds_rings = num_msix; dev_info(&pdev->dev, "using msi-x interrupts\n"); return 0; } /* fall through for msi */ } if (use_msi && !pci_enable_msi(pdev)) { value = msi_tgt_status[adapter->ahw.pci_func]; adapter->flags |= NETXEN_NIC_MSI_ENABLED; adapter->tgt_status_reg = netxen_get_ioaddr(adapter, value); adapter->msix_entries[0].vector = pdev->irq; dev_info(&pdev->dev, "using msi interrupts\n"); return 0; } dev_err(&pdev->dev, "Failed to acquire MSI-X/MSI interrupt vector\n"); return -EIO; } static int netxen_setup_intr(struct netxen_adapter *adapter) { struct pci_dev *pdev = adapter->pdev; int num_msix; if (adapter->rss_supported) num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ? MSIX_ENTRIES_PER_ADAPTER : 2; else num_msix = 1; adapter->max_sds_rings = 1; adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED); netxen_initialize_interrupt_registers(adapter); netxen_set_msix_bit(pdev, 0); if (netxen_function_zero(pdev)) { if (!netxen_setup_msi_interrupts(adapter, num_msix)) netxen_set_interrupt_mode(adapter, NETXEN_MSI_MODE); else netxen_set_interrupt_mode(adapter, NETXEN_INTX_MODE); } else { if (netxen_get_interrupt_mode(adapter) == NETXEN_MSI_MODE && netxen_setup_msi_interrupts(adapter, num_msix)) { dev_err(&pdev->dev, "Co-existence of MSI-X/MSI and INTx interrupts is not supported\n"); return -EIO; } } if (!NETXEN_IS_MSI_FAMILY(adapter)) { adapter->msix_entries[0].vector = pdev->irq; dev_info(&pdev->dev, "using legacy interrupts\n"); } return 0; } static void netxen_teardown_intr(struct netxen_adapter *adapter) { if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) pci_disable_msix(adapter->pdev); if (adapter->flags & NETXEN_NIC_MSI_ENABLED) pci_disable_msi(adapter->pdev); } static void netxen_cleanup_pci_map(struct netxen_adapter *adapter) { if (adapter->ahw.db_base != NULL) iounmap(adapter->ahw.db_base); if (adapter->ahw.pci_base0 != NULL) iounmap(adapter->ahw.pci_base0); if (adapter->ahw.pci_base1 != NULL) iounmap(adapter->ahw.pci_base1); if (adapter->ahw.pci_base2 != NULL) iounmap(adapter->ahw.pci_base2); } static int netxen_setup_pci_map(struct netxen_adapter *adapter) { void __iomem *db_ptr = NULL; resource_size_t mem_base, db_base; unsigned long mem_len, db_len = 0; struct pci_dev *pdev = adapter->pdev; int pci_func = adapter->ahw.pci_func; struct netxen_hardware_context *ahw = &adapter->ahw; int err = 0; /* * Set the CRB window to invalid. If any register in window 0 is * accessed it should set the window to 0 and then reset it to 1. */ adapter->ahw.crb_win = -1; adapter->ahw.ocm_win = -1; /* remap phys address */ mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ mem_len = pci_resource_len(pdev, 0); /* 128 Meg of memory */ if (mem_len == NETXEN_PCI_128MB_SIZE) { ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE); ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START, SECOND_PAGE_GROUP_SIZE); ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE); if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) { dev_err(&pdev->dev, "failed to map PCI bar 0\n"); err = -EIO; goto err_out; } ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE; } else if (mem_len == NETXEN_PCI_32MB_SIZE) { ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE); ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START - SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE); if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) { dev_err(&pdev->dev, "failed to map PCI bar 0\n"); err = -EIO; goto err_out; } } else if (mem_len == NETXEN_PCI_2MB_SIZE) { ahw->pci_base0 = pci_ioremap_bar(pdev, 0); if (ahw->pci_base0 == NULL) { dev_err(&pdev->dev, "failed to map PCI bar 0\n"); return -EIO; } ahw->pci_len0 = mem_len; } else { return -EIO; } netxen_setup_hwops(adapter); dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20)); if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) { adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter, NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func))); } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter, NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func))); } if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) goto skip_doorbell; db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ db_len = pci_resource_len(pdev, 4); if (db_len == 0) { printk(KERN_ERR "%s: doorbell is disabled\n", netxen_nic_driver_name); err = -EIO; goto err_out; } db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES); if (!db_ptr) { printk(KERN_ERR "%s: Failed to allocate doorbell map.", netxen_nic_driver_name); err = -EIO; goto err_out; } skip_doorbell: adapter->ahw.db_base = db_ptr; adapter->ahw.db_len = db_len; return 0; err_out: netxen_cleanup_pci_map(adapter); return err; } static void netxen_check_options(struct netxen_adapter *adapter) { u32 fw_major, fw_minor, fw_build, prev_fw_version; char brd_name[NETXEN_MAX_SHORT_NAME]; char serial_num[32]; int i, offset, val, err; __le32 *ptr32; struct pci_dev *pdev = adapter->pdev; adapter->driver_mismatch = 0; ptr32 = (__le32 *)&serial_num; offset = NX_FW_SERIAL_NUM_OFFSET; for (i = 0; i < 8; i++) { err = netxen_rom_fast_read(adapter, offset, &val); if (err) { dev_err(&pdev->dev, "error reading board info\n"); adapter->driver_mismatch = 1; return; } ptr32[i] = cpu_to_le32(val); offset += sizeof(u32); } fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR); fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR); fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB); prev_fw_version = adapter->fw_version; adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build); /* Get FW Mini Coredump template and store it */ if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { if (adapter->mdump.md_template == NULL || adapter->fw_version > prev_fw_version) { kfree(adapter->mdump.md_template); adapter->mdump.md_template = NULL; err = netxen_setup_minidump(adapter); if (err) dev_err(&adapter->pdev->dev, "Failed to setup minidump rcode = %d\n", err); } } if (adapter->portnum == 0) { if (netxen_nic_get_brd_name_by_type(adapter->ahw.board_type, brd_name)) strcpy(serial_num, "Unknown"); pr_info("%s: %s Board S/N %s Chip rev 0x%x\n", module_name(THIS_MODULE), brd_name, serial_num, adapter->ahw.revision_id); } if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) { adapter->driver_mismatch = 1; dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n", fw_major, fw_minor, fw_build); return; } if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { i = NXRD32(adapter, NETXEN_SRE_MISC); adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0; } dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d [%s]\n", NETXEN_NIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build, adapter->ahw.cut_through ? "cut-through" : "legacy"); if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222)) adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1); if (adapter->ahw.port_type == NETXEN_NIC_XGBE) { adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G; adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G; } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) { adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G; adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G; } adapter->msix_supported = 0; if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { adapter->msix_supported = !!use_msi_x; adapter->rss_supported = !!use_msi_x; } else { u32 flashed_ver = 0; netxen_rom_fast_read(adapter, NX_FW_VERSION_OFFSET, (int *)&flashed_ver); flashed_ver = NETXEN_DECODE_VERSION(flashed_ver); if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) { switch (adapter->ahw.board_type) { case NETXEN_BRDTYPE_P2_SB31_10G: case NETXEN_BRDTYPE_P2_SB31_10G_CX4: adapter->msix_supported = !!use_msi_x; adapter->rss_supported = !!use_msi_x; break; default: break; } } } adapter->num_txd = MAX_CMD_DESCRIPTORS; if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS; adapter->max_rds_rings = 3; } else { adapter->num_lro_rxd = 0; adapter->max_rds_rings = 2; } } static int netxen_start_firmware(struct netxen_adapter *adapter) { int val, err, first_boot; struct pci_dev *pdev = adapter->pdev; /* required for NX2031 dummy dma */ err = nx_set_dma_mask(adapter); if (err) return err; err = netxen_can_start_firmware(adapter); if (err < 0) return err; if (!err) goto wait_init; first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc)); err = netxen_check_hw_init(adapter, first_boot); if (err) { dev_err(&pdev->dev, "error in init HW init sequence\n"); return err; } netxen_request_firmware(adapter); err = netxen_need_fw_reset(adapter); if (err < 0) goto err_out; if (err == 0) goto pcie_strap_init; if (first_boot != 0x55555555) { NXWR32(adapter, CRB_CMDPEG_STATE, 0); netxen_pinit_from_rom(adapter); msleep(1); } NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555); NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0); NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0); if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) netxen_set_port_mode(adapter); err = netxen_load_firmware(adapter); if (err) goto err_out; netxen_release_firmware(adapter); if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { /* Initialize multicast addr pool owners */ val = 0x7654; if (adapter->ahw.port_type == NETXEN_NIC_XGBE) val |= 0x0f000000; NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val); } err = netxen_init_dummy_dma(adapter); if (err) goto err_out; /* * Tell the hardware our version number. */ val = (_NETXEN_NIC_LINUX_MAJOR << 16) | ((_NETXEN_NIC_LINUX_MINOR << 8)) | (_NETXEN_NIC_LINUX_SUBVERSION); NXWR32(adapter, CRB_DRIVER_VERSION, val); pcie_strap_init: if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) netxen_pcie_strap_init(adapter); wait_init: /* Handshake with the card before we register the devices. */ err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE); if (err) { netxen_free_dummy_dma(adapter); goto err_out; } NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY); nx_update_dma_mask(adapter); netxen_check_options(adapter); adapter->need_fw_reset = 0; /* fall through and release firmware */ err_out: netxen_release_firmware(adapter); return err; } static int netxen_nic_request_irq(struct netxen_adapter *adapter) { irq_handler_t handler; struct nx_host_sds_ring *sds_ring; int err, ring; unsigned long flags = 0; struct net_device *netdev = adapter->netdev; struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) handler = netxen_msix_intr; else if (adapter->flags & NETXEN_NIC_MSI_ENABLED) handler = netxen_msi_intr; else { flags |= IRQF_SHARED; handler = netxen_intr; } adapter->irq = netdev->irq; for (ring = 0; ring < adapter->max_sds_rings; ring++) { sds_ring = &recv_ctx->sds_rings[ring]; sprintf(sds_ring->name, "%s[%d]", netdev->name, ring); err = request_irq(sds_ring->irq, handler, flags, sds_ring->name, sds_ring); if (err) return err; } return 0; } static void netxen_nic_free_irq(struct netxen_adapter *adapter) { int ring; struct nx_host_sds_ring *sds_ring; struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; for (ring = 0; ring < adapter->max_sds_rings; ring++) { sds_ring = &recv_ctx->sds_rings[ring]; free_irq(sds_ring->irq, sds_ring); } } static void netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter) { adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT; adapter->coal.normal.data.rx_time_us = NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US; adapter->coal.normal.data.rx_packets = NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS; adapter->coal.normal.data.tx_time_us = NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US; adapter->coal.normal.data.tx_packets = NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS; } /* with rtnl_lock */ static int __netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev) { int err; if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) return -EIO; err = adapter->init_port(adapter, adapter->physical_port); if (err) { printk(KERN_ERR "%s: Failed to initialize port %d\n", netxen_nic_driver_name, adapter->portnum); return err; } if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) adapter->macaddr_set(adapter, adapter->mac_addr); adapter->set_multi(netdev); adapter->set_mtu(adapter, netdev->mtu); adapter->ahw.linkup = 0; if (adapter->max_sds_rings > 1) netxen_config_rss(adapter, 1); if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) netxen_config_intr_coalesce(adapter); if (netdev->features & NETIF_F_LRO) netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED); netxen_napi_enable(adapter); if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION) netxen_linkevent_request(adapter, 1); else netxen_nic_set_link_parameters(adapter); set_bit(__NX_DEV_UP, &adapter->state); return 0; } /* Usage: During resume and firmware recovery module.*/ static inline int netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev) { int err = 0; rtnl_lock(); if (netif_running(netdev)) err = __netxen_nic_up(adapter, netdev); rtnl_unlock(); return err; } /* with rtnl_lock */ static void __netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) { if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) return; if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state)) return; smp_mb(); netif_carrier_off(netdev); netif_tx_disable(netdev); if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION) netxen_linkevent_request(adapter, 0); if (adapter->stop_port) adapter->stop_port(adapter); if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) netxen_p3_free_mac_list(adapter); adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE); netxen_napi_disable(adapter); netxen_release_tx_buffers(adapter); } /* Usage: During suspend and firmware recovery module */ static inline void netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) { rtnl_lock(); if (netif_running(netdev)) __netxen_nic_down(adapter, netdev); rtnl_unlock(); } static int netxen_nic_attach(struct netxen_adapter *adapter) { struct net_device *netdev = adapter->netdev; struct pci_dev *pdev = adapter->pdev; int err, ring; struct nx_host_rds_ring *rds_ring; struct nx_host_tx_ring *tx_ring; u32 capab2; if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) return 0; err = netxen_init_firmware(adapter); if (err) return err; adapter->flags &= ~NETXEN_FW_MSS_CAP; if (adapter->capabilities & NX_FW_CAPABILITY_MORE_CAPS) { capab2 = NXRD32(adapter, CRB_FW_CAPABILITIES_2); if (capab2 & NX_FW_CAPABILITY_2_LRO_MAX_TCP_SEG) adapter->flags |= NETXEN_FW_MSS_CAP; } err = netxen_napi_add(adapter, netdev); if (err) return err; err = netxen_alloc_sw_resources(adapter); if (err) { printk(KERN_ERR "%s: Error in setting sw resources\n", netdev->name); return err; } err = netxen_alloc_hw_resources(adapter); if (err) { printk(KERN_ERR "%s: Error in setting hw resources\n", netdev->name); goto err_out_free_sw; } if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { tx_ring = adapter->tx_ring; tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter, crb_cmd_producer[adapter->portnum]); tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter, crb_cmd_consumer[adapter->portnum]); tx_ring->producer = 0; tx_ring->sw_consumer = 0; netxen_nic_update_cmd_producer(adapter, tx_ring); netxen_nic_update_cmd_consumer(adapter, tx_ring); } for (ring = 0; ring < adapter->max_rds_rings; ring++) { rds_ring = &adapter->recv_ctx.rds_rings[ring]; netxen_post_rx_buffers(adapter, ring, rds_ring); } err = netxen_nic_request_irq(adapter); if (err) { dev_err(&pdev->dev, "%s: failed to setup interrupt\n", netdev->name); goto err_out_free_rxbuf; } if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) netxen_nic_init_coalesce_defaults(adapter); netxen_create_sysfs_entries(adapter); adapter->is_up = NETXEN_ADAPTER_UP_MAGIC; return 0; err_out_free_rxbuf: netxen_release_rx_buffers(adapter); netxen_free_hw_resources(adapter); err_out_free_sw: netxen_free_sw_resources(adapter); return err; } static void netxen_nic_detach(struct netxen_adapter *adapter) { if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) return; netxen_remove_sysfs_entries(adapter); netxen_free_hw_resources(adapter); netxen_release_rx_buffers(adapter); netxen_nic_free_irq(adapter); netxen_napi_del(adapter); netxen_free_sw_resources(adapter); adapter->is_up = 0; } int netxen_nic_reset_context(struct netxen_adapter *adapter) { int err = 0; struct net_device *netdev = adapter->netdev; if (test_and_set_bit(__NX_RESETTING, &adapter->state)) return -EBUSY; if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { netif_device_detach(netdev); if (netif_running(netdev)) __netxen_nic_down(adapter, netdev); netxen_nic_detach(adapter); if (netif_running(netdev)) { err = netxen_nic_attach(adapter); if (!err) err = __netxen_nic_up(adapter, netdev); if (err) goto done; } netif_device_attach(netdev); } done: clear_bit(__NX_RESETTING, &adapter->state); return err; } static int netxen_setup_netdev(struct netxen_adapter *adapter, struct net_device *netdev) { int err = 0; struct pci_dev *pdev = adapter->pdev; adapter->mc_enabled = 0; if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) adapter->max_mc_count = 38; else adapter->max_mc_count = 16; netdev->netdev_ops = &netxen_netdev_ops; netdev->watchdog_timeo = 5*HZ; netxen_nic_change_mtu(netdev, netdev->mtu); netdev->ethtool_ops = &netxen_nic_ethtool_ops; netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO | NETIF_F_RXCSUM; if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) netdev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6; netdev->vlan_features |= netdev->hw_features; if (adapter->pci_using_dac) { netdev->features |= NETIF_F_HIGHDMA; netdev->vlan_features |= NETIF_F_HIGHDMA; } if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX) netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX; if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO) netdev->hw_features |= NETIF_F_LRO; netdev->features |= netdev->hw_features; netdev->irq = adapter->msix_entries[0].vector; INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task); if (netxen_read_mac_addr(adapter)) dev_warn(&pdev->dev, "failed to read mac addr\n"); netif_carrier_off(netdev); err = register_netdev(netdev); if (err) { dev_err(&pdev->dev, "failed to register net device\n"); return err; } return 0; } #define NETXEN_ULA_ADAPTER_KEY (0xdaddad01) #define NETXEN_NON_ULA_ADAPTER_KEY (0xdaddad00) static void netxen_read_ula_info(struct netxen_adapter *adapter) { u32 temp; /* Print ULA info only once for an adapter */ if (adapter->portnum != 0) return; temp = NXRD32(adapter, NETXEN_ULA_KEY); switch (temp) { case NETXEN_ULA_ADAPTER_KEY: dev_info(&adapter->pdev->dev, "ULA adapter"); break; case NETXEN_NON_ULA_ADAPTER_KEY: dev_info(&adapter->pdev->dev, "non ULA adapter"); break; default: break; } return; } #ifdef CONFIG_PCIEAER static void netxen_mask_aer_correctable(struct netxen_adapter *adapter) { struct pci_dev *pdev = adapter->pdev; struct pci_dev *root = pdev->bus->self; u32 aer_pos; /* root bus? */ if (!root) return; if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM && adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP) return; if (pci_pcie_type(root) != PCI_EXP_TYPE_ROOT_PORT) return; aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR); if (!aer_pos) return; pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff); } #endif static int netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { struct net_device *netdev = NULL; struct netxen_adapter *adapter = NULL; int i = 0, err; int pci_func_id = PCI_FUNC(pdev->devfn); uint8_t revision_id; u32 val; if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) { pr_warn("%s: chip revisions between 0x%x-0x%x will not be enabled\n", module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1); return -ENODEV; } if ((err = pci_enable_device(pdev))) return err; if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { err = -ENODEV; goto err_out_disable_pdev; } if ((err = pci_request_regions(pdev, netxen_nic_driver_name))) goto err_out_disable_pdev; if (NX_IS_REVISION_P3(pdev->revision)) pci_enable_pcie_error_reporting(pdev); pci_set_master(pdev); netdev = alloc_etherdev(sizeof(struct netxen_adapter)); if(!netdev) { err = -ENOMEM; goto err_out_free_res; } SET_NETDEV_DEV(netdev, &pdev->dev); adapter = netdev_priv(netdev); adapter->netdev = netdev; adapter->pdev = pdev; adapter->ahw.pci_func = pci_func_id; revision_id = pdev->revision; adapter->ahw.revision_id = revision_id; rwlock_init(&adapter->ahw.crb_lock); spin_lock_init(&adapter->ahw.mem_lock); spin_lock_init(&adapter->tx_clean_lock); INIT_LIST_HEAD(&adapter->mac_list); INIT_LIST_HEAD(&adapter->ip_list); err = netxen_setup_pci_map(adapter); if (err) goto err_out_free_netdev; /* This will be reset for mezz cards */ adapter->portnum = pci_func_id; err = netxen_nic_get_board_info(adapter); if (err) { dev_err(&pdev->dev, "Error getting board config info.\n"); goto err_out_iounmap; } #ifdef CONFIG_PCIEAER netxen_mask_aer_correctable(adapter); #endif /* Mezz cards have PCI function 0,2,3 enabled */ switch (adapter->ahw.board_type) { case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ: case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ: if (pci_func_id >= 2) adapter->portnum = pci_func_id - 2; break; default: break; } err = netxen_check_flash_fw_compatibility(adapter); if (err) goto err_out_iounmap; if (adapter->portnum == 0) { val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); if (val != 0xffffffff && val != 0) { NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0); adapter->need_fw_reset = 1; } } err = netxen_start_firmware(adapter); if (err) goto err_out_decr_ref; /* * See if the firmware gave us a virtual-physical port mapping. */ adapter->physical_port = adapter->portnum; if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { i = NXRD32(adapter, CRB_V2P(adapter->portnum)); if (i != 0x55555555) adapter->physical_port = i; } /* MTU range: 0 - 8000 (P2) or 9600 (P3) */ netdev->min_mtu = 0; if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) netdev->max_mtu = P3_MAX_MTU; else netdev->max_mtu = P2_MAX_MTU; netxen_nic_clear_stats(adapter); err = netxen_setup_intr(adapter); if (err) { dev_err(&adapter->pdev->dev, "Failed to setup interrupts, error = %d\n", err); goto err_out_disable_msi; } netxen_read_ula_info(adapter); err = netxen_setup_netdev(adapter, netdev); if (err) goto err_out_disable_msi; pci_set_drvdata(pdev, adapter); netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); switch (adapter->ahw.port_type) { case NETXEN_NIC_GBE: dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n", adapter->netdev->name); break; case NETXEN_NIC_XGBE: dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n", adapter->netdev->name); break; } netxen_create_diag_entries(adapter); return 0; err_out_disable_msi: netxen_teardown_intr(adapter); netxen_free_dummy_dma(adapter); err_out_decr_ref: nx_decr_dev_ref_cnt(adapter); err_out_iounmap: netxen_cleanup_pci_map(adapter); err_out_free_netdev: free_netdev(netdev); err_out_free_res: pci_release_regions(pdev); err_out_disable_pdev: pci_disable_device(pdev); return err; } static void netxen_cleanup_minidump(struct netxen_adapter *adapter) { kfree(adapter->mdump.md_template); adapter->mdump.md_template = NULL; if (adapter->mdump.md_capture_buff) { vfree(adapter->mdump.md_capture_buff); adapter->mdump.md_capture_buff = NULL; } } static void netxen_nic_remove(struct pci_dev *pdev) { struct netxen_adapter *adapter; struct net_device *netdev; adapter = pci_get_drvdata(pdev); if (adapter == NULL) return; netdev = adapter->netdev; netxen_cancel_fw_work(adapter); unregister_netdev(netdev); cancel_work_sync(&adapter->tx_timeout_task); netxen_free_ip_list(adapter, false); netxen_nic_detach(adapter); nx_decr_dev_ref_cnt(adapter); if (adapter->portnum == 0) netxen_free_dummy_dma(adapter); clear_bit(__NX_RESETTING, &adapter->state); netxen_teardown_intr(adapter); netxen_set_interrupt_mode(adapter, 0); netxen_remove_diag_entries(adapter); netxen_cleanup_pci_map(adapter); netxen_release_firmware(adapter); if (NX_IS_REVISION_P3(pdev->revision)) { netxen_cleanup_minidump(adapter); pci_disable_pcie_error_reporting(pdev); } pci_release_regions(pdev); pci_disable_device(pdev); free_netdev(netdev); } static void netxen_nic_detach_func(struct netxen_adapter *adapter) { struct net_device *netdev = adapter->netdev; netif_device_detach(netdev); netxen_cancel_fw_work(adapter); if (netif_running(netdev)) netxen_nic_down(adapter, netdev); cancel_work_sync(&adapter->tx_timeout_task); netxen_nic_detach(adapter); if (adapter->portnum == 0) netxen_free_dummy_dma(adapter); nx_decr_dev_ref_cnt(adapter); clear_bit(__NX_RESETTING, &adapter->state); } static int netxen_nic_attach_func(struct pci_dev *pdev) { struct netxen_adapter *adapter = pci_get_drvdata(pdev); struct net_device *netdev = adapter->netdev; int err; err = pci_enable_device(pdev); if (err) return err; pci_set_power_state(pdev, PCI_D0); pci_set_master(pdev); pci_restore_state(pdev); adapter->ahw.crb_win = -1; adapter->ahw.ocm_win = -1; err = netxen_start_firmware(adapter); if (err) { dev_err(&pdev->dev, "failed to start firmware\n"); return err; } if (netif_running(netdev)) { err = netxen_nic_attach(adapter); if (err) goto err_out; err = netxen_nic_up(adapter, netdev); if (err) goto err_out_detach; netxen_restore_indev_addr(netdev, NETDEV_UP); } netif_device_attach(netdev); netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); return 0; err_out_detach: netxen_nic_detach(adapter); err_out: nx_decr_dev_ref_cnt(adapter); return err; } static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) { struct netxen_adapter *adapter = pci_get_drvdata(pdev); if (state == pci_channel_io_perm_failure) return PCI_ERS_RESULT_DISCONNECT; if (nx_dev_request_aer(adapter)) return PCI_ERS_RESULT_RECOVERED; netxen_nic_detach_func(adapter); pci_disable_device(pdev); return PCI_ERS_RESULT_NEED_RESET; } static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev) { int err = 0; err = netxen_nic_attach_func(pdev); return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED; } static void netxen_nic_shutdown(struct pci_dev *pdev) { struct netxen_adapter *adapter = pci_get_drvdata(pdev); netxen_nic_detach_func(adapter); if (pci_save_state(pdev)) return; if (netxen_nic_wol_supported(adapter)) { pci_enable_wake(pdev, PCI_D3cold, 1); pci_enable_wake(pdev, PCI_D3hot, 1); } pci_disable_device(pdev); } #ifdef CONFIG_PM static int netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state) { struct netxen_adapter *adapter = pci_get_drvdata(pdev); int retval; netxen_nic_detach_func(adapter); retval = pci_save_state(pdev); if (retval) return retval; if (netxen_nic_wol_supported(adapter)) { pci_enable_wake(pdev, PCI_D3cold, 1); pci_enable_wake(pdev, PCI_D3hot, 1); } pci_disable_device(pdev); pci_set_power_state(pdev, pci_choose_state(pdev, state)); return 0; } static int netxen_nic_resume(struct pci_dev *pdev) { return netxen_nic_attach_func(pdev); } #endif static int netxen_nic_open(struct net_device *netdev) { struct netxen_adapter *adapter = netdev_priv(netdev); int err = 0; if (adapter->driver_mismatch) return -EIO; err = netxen_nic_attach(adapter); if (err) return err; err = __netxen_nic_up(adapter, netdev); if (err) goto err_out; netif_start_queue(netdev); return 0; err_out: netxen_nic_detach(adapter); return err; } /* * netxen_nic_close - Disables a network interface entry point */ static int netxen_nic_close(struct net_device *netdev) { struct netxen_adapter *adapter = netdev_priv(netdev); __netxen_nic_down(adapter, netdev); return 0; } static void netxen_tso_check(struct net_device *netdev, struct nx_host_tx_ring *tx_ring, struct cmd_desc_type0 *first_desc, struct sk_buff *skb) { u8 opcode = TX_ETHER_PKT; __be16 protocol = skb->protocol; u16 flags = 0, vid = 0; u32 producer; int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0; struct cmd_desc_type0 *hwdesc; struct vlan_ethhdr *vh; if (protocol == cpu_to_be16(ETH_P_8021Q)) { vh = (struct vlan_ethhdr *)skb->data; protocol = vh->h_vlan_encapsulated_proto; flags = FLAGS_VLAN_TAGGED; } else if (skb_vlan_tag_present(skb)) { flags = FLAGS_VLAN_OOB; vid = skb_vlan_tag_get(skb); netxen_set_tx_vlan_tci(first_desc, vid); vlan_oob = 1; } if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) && skb_shinfo(skb)->gso_size > 0) { hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); first_desc->total_hdr_length = hdr_len; if (vlan_oob) { first_desc->total_hdr_length += VLAN_HLEN; first_desc->tcp_hdr_offset = VLAN_HLEN; first_desc->ip_hdr_offset = VLAN_HLEN; /* Only in case of TSO on vlan device */ flags |= FLAGS_VLAN_TAGGED; } opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ? TX_TCP_LSO6 : TX_TCP_LSO; tso = 1; } else if (skb->ip_summed == CHECKSUM_PARTIAL) { u8 l4proto; if (protocol == cpu_to_be16(ETH_P_IP)) { l4proto = ip_hdr(skb)->protocol; if (l4proto == IPPROTO_TCP) opcode = TX_TCP_PKT; else if(l4proto == IPPROTO_UDP) opcode = TX_UDP_PKT; } else if (protocol == cpu_to_be16(ETH_P_IPV6)) { l4proto = ipv6_hdr(skb)->nexthdr; if (l4proto == IPPROTO_TCP) opcode = TX_TCPV6_PKT; else if(l4proto == IPPROTO_UDP) opcode = TX_UDPV6_PKT; } } first_desc->tcp_hdr_offset += skb_transport_offset(skb); first_desc->ip_hdr_offset += skb_network_offset(skb); netxen_set_tx_flags_opcode(first_desc, flags, opcode); if (!tso) return; /* For LSO, we need to copy the MAC/IP/TCP headers into * the descriptor ring */ producer = tx_ring->producer; copied = 0; offset = 2; if (vlan_oob) { /* Create a TSO vlan header template for firmware */ hwdesc = &tx_ring->desc_head[producer]; tx_ring->cmd_buf_arr[producer].skb = NULL; copy_len = min((int)sizeof(struct cmd_desc_type0) - offset, hdr_len + VLAN_HLEN); vh = (struct vlan_ethhdr *)((char *)hwdesc + 2); skb_copy_from_linear_data(skb, vh, 12); vh->h_vlan_proto = htons(ETH_P_8021Q); vh->h_vlan_TCI = htons(vid); skb_copy_from_linear_data_offset(skb, 12, (char *)vh + 16, copy_len - 16); copied = copy_len - VLAN_HLEN; offset = 0; producer = get_next_index(producer, tx_ring->num_desc); } while (copied < hdr_len) { copy_len = min((int)sizeof(struct cmd_desc_type0) - offset, (hdr_len - copied)); hwdesc = &tx_ring->desc_head[producer]; tx_ring->cmd_buf_arr[producer].skb = NULL; skb_copy_from_linear_data_offset(skb, copied, (char *)hwdesc + offset, copy_len); copied += copy_len; offset = 0; producer = get_next_index(producer, tx_ring->num_desc); } tx_ring->producer = producer; barrier(); } static int netxen_map_tx_skb(struct pci_dev *pdev, struct sk_buff *skb, struct netxen_cmd_buffer *pbuf) { struct netxen_skb_frag *nf; skb_frag_t *frag; int i, nr_frags; dma_addr_t map; nr_frags = skb_shinfo(skb)->nr_frags; nf = &pbuf->frag_array[0]; map = pci_map_single(pdev, skb->data, skb_headlen(skb), PCI_DMA_TODEVICE); if (pci_dma_mapping_error(pdev, map)) goto out_err; nf->dma = map; nf->length = skb_headlen(skb); for (i = 0; i < nr_frags; i++) { frag = &skb_shinfo(skb)->frags[i]; nf = &pbuf->frag_array[i+1]; map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag), DMA_TO_DEVICE); if (dma_mapping_error(&pdev->dev, map)) goto unwind; nf->dma = map; nf->length = skb_frag_size(frag); } return 0; unwind: while (--i >= 0) { nf = &pbuf->frag_array[i+1]; pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE); nf->dma = 0ULL; } nf = &pbuf->frag_array[0]; pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE); nf->dma = 0ULL; out_err: return -ENOMEM; } static inline void netxen_clear_cmddesc(u64 *desc) { desc[0] = 0ULL; desc[2] = 0ULL; } static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) { struct netxen_adapter *adapter = netdev_priv(netdev); struct nx_host_tx_ring *tx_ring = adapter->tx_ring; struct netxen_cmd_buffer *pbuf; struct netxen_skb_frag *buffrag; struct cmd_desc_type0 *hwdesc, *first_desc; struct pci_dev *pdev; int i, k; int delta = 0; skb_frag_t *frag; u32 producer; int frag_count; u32 num_txd = tx_ring->num_desc; frag_count = skb_shinfo(skb)->nr_frags + 1; /* 14 frags supported for normal packet and * 32 frags supported for TSO packet */ if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) { for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) { frag = &skb_shinfo(skb)->frags[i]; delta += skb_frag_size(frag); } if (!__pskb_pull_tail(skb, delta)) goto drop_packet; frag_count = 1 + skb_shinfo(skb)->nr_frags; } if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) { netif_stop_queue(netdev); smp_mb(); if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH) netif_start_queue(netdev); else return NETDEV_TX_BUSY; } producer = tx_ring->producer; pbuf = &tx_ring->cmd_buf_arr[producer]; pdev = adapter->pdev; if (netxen_map_tx_skb(pdev, skb, pbuf)) goto drop_packet; pbuf->skb = skb; pbuf->frag_count = frag_count; first_desc = hwdesc = &tx_ring->desc_head[producer]; netxen_clear_cmddesc((u64 *)hwdesc); netxen_set_tx_frags_len(first_desc, frag_count, skb->len); netxen_set_tx_port(first_desc, adapter->portnum); for (i = 0; i < frag_count; i++) { k = i % 4; if ((k == 0) && (i > 0)) { /* move to next desc.*/ producer = get_next_index(producer, num_txd); hwdesc = &tx_ring->desc_head[producer]; netxen_clear_cmddesc((u64 *)hwdesc); tx_ring->cmd_buf_arr[producer].skb = NULL; } buffrag = &pbuf->frag_array[i]; hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length); switch (k) { case 0: hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma); break; case 1: hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma); break; case 2: hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma); break; case 3: hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma); break; } } tx_ring->producer = get_next_index(producer, num_txd); netxen_tso_check(netdev, tx_ring, first_desc, skb); adapter->stats.txbytes += skb->len; adapter->stats.xmitcalled++; netxen_nic_update_cmd_producer(adapter, tx_ring); return NETDEV_TX_OK; drop_packet: adapter->stats.txdropped++; dev_kfree_skb_any(skb); return NETDEV_TX_OK; } static int netxen_nic_check_temp(struct netxen_adapter *adapter) { struct net_device *netdev = adapter->netdev; uint32_t temp, temp_state, temp_val; int rv = 0; temp = NXRD32(adapter, CRB_TEMP_STATE); temp_state = nx_get_temp_state(temp); temp_val = nx_get_temp_val(temp); if (temp_state == NX_TEMP_PANIC) { printk(KERN_ALERT "%s: Device temperature %d degrees C exceeds" " maximum allowed. Hardware has been shut down.\n", netdev->name, temp_val); rv = 1; } else if (temp_state == NX_TEMP_WARN) { if (adapter->temp == NX_TEMP_NORMAL) { printk(KERN_ALERT "%s: Device temperature %d degrees C " "exceeds operating range." " Immediate action needed.\n", netdev->name, temp_val); } } else { if (adapter->temp == NX_TEMP_WARN) { printk(KERN_INFO "%s: Device temperature is now %d degrees C" " in normal range.\n", netdev->name, temp_val); } } adapter->temp = temp_state; return rv; } void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup) { struct net_device *netdev = adapter->netdev; if (adapter->ahw.linkup && !linkup) { printk(KERN_INFO "%s: %s NIC Link is down\n", netxen_nic_driver_name, netdev->name); adapter->ahw.linkup = 0; if (netif_running(netdev)) { netif_carrier_off(netdev); netif_stop_queue(netdev); } adapter->link_changed = !adapter->has_link_events; } else if (!adapter->ahw.linkup && linkup) { printk(KERN_INFO "%s: %s NIC Link is up\n", netxen_nic_driver_name, netdev->name); adapter->ahw.linkup = 1; if (netif_running(netdev)) { netif_carrier_on(netdev); netif_wake_queue(netdev); } adapter->link_changed = !adapter->has_link_events; } } static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter) { u32 val, port, linkup; port = adapter->physical_port; if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { val = NXRD32(adapter, CRB_XG_STATE_P3); val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val); linkup = (val == XG_LINK_UP_P3); } else { val = NXRD32(adapter, CRB_XG_STATE); val = (val >> port*8) & 0xff; linkup = (val == XG_LINK_UP); } netxen_advert_link_change(adapter, linkup); } static void netxen_tx_timeout(struct net_device *netdev) { struct netxen_adapter *adapter = netdev_priv(netdev); if (test_bit(__NX_RESETTING, &adapter->state)) return; dev_err(&netdev->dev, "transmit timeout, resetting.\n"); schedule_work(&adapter->tx_timeout_task); } static void netxen_tx_timeout_task(struct work_struct *work) { struct netxen_adapter *adapter = container_of(work, struct netxen_adapter, tx_timeout_task); if (!netif_running(adapter->netdev)) return; if (test_and_set_bit(__NX_RESETTING, &adapter->state)) return; if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS) goto request_reset; rtnl_lock(); if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { /* try to scrub interrupt */ netxen_napi_disable(adapter); netxen_napi_enable(adapter); netif_wake_queue(adapter->netdev); clear_bit(__NX_RESETTING, &adapter->state); } else { clear_bit(__NX_RESETTING, &adapter->state); if (netxen_nic_reset_context(adapter)) { rtnl_unlock(); goto request_reset; } } netif_trans_update(adapter->netdev); rtnl_unlock(); return; request_reset: adapter->need_fw_reset = 1; clear_bit(__NX_RESETTING, &adapter->state); } static void netxen_nic_get_stats(struct net_device *netdev, struct rtnl_link_stats64 *stats) { struct netxen_adapter *adapter = netdev_priv(netdev); stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts; stats->tx_packets = adapter->stats.xmitfinished; stats->rx_bytes = adapter->stats.rxbytes; stats->tx_bytes = adapter->stats.txbytes; stats->rx_dropped = adapter->stats.rxdropped; stats->tx_dropped = adapter->stats.txdropped; } static irqreturn_t netxen_intr(int irq, void *data) { struct nx_host_sds_ring *sds_ring = data; struct netxen_adapter *adapter = sds_ring->adapter; u32 status = 0; status = readl(adapter->isr_int_vec); if (!(status & adapter->int_vec_bit)) return IRQ_NONE; if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { /* check interrupt state machine, to be sure */ status = readl(adapter->crb_int_state_reg); if (!ISR_LEGACY_INT_TRIGGERED(status)) return IRQ_NONE; } else { unsigned long our_int = 0; our_int = readl(adapter->crb_int_state_reg); /* not our interrupt */ if (!test_and_clear_bit((7 + adapter->portnum), &our_int)) return IRQ_NONE; /* claim interrupt */ writel((our_int & 0xffffffff), adapter->crb_int_state_reg); /* clear interrupt */ netxen_nic_disable_int(sds_ring); } writel(0xffffffff, adapter->tgt_status_reg); /* read twice to ensure write is flushed */ readl(adapter->isr_int_vec); readl(adapter->isr_int_vec); napi_schedule(&sds_ring->napi); return IRQ_HANDLED; } static irqreturn_t netxen_msi_intr(int irq, void *data) { struct nx_host_sds_ring *sds_ring = data; struct netxen_adapter *adapter = sds_ring->adapter; /* clear interrupt */ writel(0xffffffff, adapter->tgt_status_reg); napi_schedule(&sds_ring->napi); return IRQ_HANDLED; } static irqreturn_t netxen_msix_intr(int irq, void *data) { struct nx_host_sds_ring *sds_ring = data; napi_schedule(&sds_ring->napi); return IRQ_HANDLED; } static int netxen_nic_poll(struct napi_struct *napi, int budget) { struct nx_host_sds_ring *sds_ring = container_of(napi, struct nx_host_sds_ring, napi); struct netxen_adapter *adapter = sds_ring->adapter; int tx_complete; int work_done; tx_complete = netxen_process_cmd_ring(adapter); work_done = netxen_process_rcv_ring(sds_ring, budget); if (!tx_complete) work_done = budget; if (work_done < budget) { napi_complete_done(&sds_ring->napi, work_done); if (test_bit(__NX_DEV_UP, &adapter->state)) netxen_nic_enable_int(sds_ring); } return work_done; } static int nx_incr_dev_ref_cnt(struct netxen_adapter *adapter) { int count; if (netxen_api_lock(adapter)) return -EIO; count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count); netxen_api_unlock(adapter); return count; } static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter) { int count, state; if (netxen_api_lock(adapter)) return -EIO; count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); WARN_ON(count == 0); NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count); state = NXRD32(adapter, NX_CRB_DEV_STATE); if (count == 0 && state != NX_DEV_FAILED) NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD); netxen_api_unlock(adapter); return count; } static int nx_dev_request_aer(struct netxen_adapter *adapter) { u32 state; int ret = -EINVAL; if (netxen_api_lock(adapter)) return ret; state = NXRD32(adapter, NX_CRB_DEV_STATE); if (state == NX_DEV_NEED_AER) ret = 0; else if (state == NX_DEV_READY) { NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER); ret = 0; } netxen_api_unlock(adapter); return ret; } int nx_dev_request_reset(struct netxen_adapter *adapter) { u32 state; int ret = -EINVAL; if (netxen_api_lock(adapter)) return ret; state = NXRD32(adapter, NX_CRB_DEV_STATE); if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) ret = 0; else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) { NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET); adapter->flags |= NETXEN_FW_RESET_OWNER; ret = 0; } netxen_api_unlock(adapter); return ret; } static int netxen_can_start_firmware(struct netxen_adapter *adapter) { int count; int can_start = 0; if (netxen_api_lock(adapter)) { nx_incr_dev_ref_cnt(adapter); return -1; } count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); if ((count < 0) || (count >= NX_MAX_PCI_FUNC)) count = 0; if (count == 0) { can_start = 1; NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING); } NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count); netxen_api_unlock(adapter); return can_start; } static void netxen_schedule_work(struct netxen_adapter *adapter, work_func_t func, int delay) { INIT_DELAYED_WORK(&adapter->fw_work, func); schedule_delayed_work(&adapter->fw_work, delay); } static void netxen_cancel_fw_work(struct netxen_adapter *adapter) { while (test_and_set_bit(__NX_RESETTING, &adapter->state)) msleep(10); cancel_delayed_work_sync(&adapter->fw_work); } static void netxen_attach_work(struct work_struct *work) { struct netxen_adapter *adapter = container_of(work, struct netxen_adapter, fw_work.work); struct net_device *netdev = adapter->netdev; int err = 0; if (netif_running(netdev)) { err = netxen_nic_attach(adapter); if (err) goto done; err = netxen_nic_up(adapter, netdev); if (err) { netxen_nic_detach(adapter); goto done; } netxen_restore_indev_addr(netdev, NETDEV_UP); } netif_device_attach(netdev); done: adapter->fw_fail_cnt = 0; clear_bit(__NX_RESETTING, &adapter->state); netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); } static void netxen_fwinit_work(struct work_struct *work) { struct netxen_adapter *adapter = container_of(work, struct netxen_adapter, fw_work.work); int dev_state; int count; dev_state = NXRD32(adapter, NX_CRB_DEV_STATE); if (adapter->flags & NETXEN_FW_RESET_OWNER) { count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); WARN_ON(count == 0); if (count == 1) { if (adapter->mdump.md_enabled) { rtnl_lock(); netxen_dump_fw(adapter); rtnl_unlock(); } adapter->flags &= ~NETXEN_FW_RESET_OWNER; if (netxen_api_lock(adapter)) { clear_bit(__NX_RESETTING, &adapter->state); NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_FAILED); return; } count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count); NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD); dev_state = NX_DEV_COLD; netxen_api_unlock(adapter); } } switch (dev_state) { case NX_DEV_COLD: case NX_DEV_READY: if (!netxen_start_firmware(adapter)) { netxen_schedule_work(adapter, netxen_attach_work, 0); return; } break; case NX_DEV_NEED_RESET: case NX_DEV_INITALIZING: netxen_schedule_work(adapter, netxen_fwinit_work, 2 * FW_POLL_DELAY); return; case NX_DEV_FAILED: default: nx_incr_dev_ref_cnt(adapter); break; } if (netxen_api_lock(adapter)) { clear_bit(__NX_RESETTING, &adapter->state); return; } NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_FAILED); netxen_api_unlock(adapter); dev_err(&adapter->pdev->dev, "%s: Device initialization Failed\n", adapter->netdev->name); clear_bit(__NX_RESETTING, &adapter->state); } static void netxen_detach_work(struct work_struct *work) { struct netxen_adapter *adapter = container_of(work, struct netxen_adapter, fw_work.work); struct net_device *netdev = adapter->netdev; int ref_cnt = 0, delay; u32 status; netif_device_detach(netdev); netxen_nic_down(adapter, netdev); rtnl_lock(); netxen_nic_detach(adapter); rtnl_unlock(); status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1); if (status & NX_RCODE_FATAL_ERROR) goto err_ret; if (adapter->temp == NX_TEMP_PANIC) goto err_ret; if (!(adapter->flags & NETXEN_FW_RESET_OWNER)) ref_cnt = nx_decr_dev_ref_cnt(adapter); if (ref_cnt == -EIO) goto err_ret; delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY); adapter->fw_wait_cnt = 0; netxen_schedule_work(adapter, netxen_fwinit_work, delay); return; err_ret: clear_bit(__NX_RESETTING, &adapter->state); } static int netxen_check_health(struct netxen_adapter *adapter) { u32 state, heartbit; u32 peg_status; struct net_device *netdev = adapter->netdev; state = NXRD32(adapter, NX_CRB_DEV_STATE); if (state == NX_DEV_NEED_AER) return 0; if (netxen_nic_check_temp(adapter)) goto detach; if (adapter->need_fw_reset) { if (nx_dev_request_reset(adapter)) return 0; goto detach; } /* NX_DEV_NEED_RESET, this state can be marked in two cases * 1. Tx timeout 2. Fw hang * Send request to destroy context in case of tx timeout only * and doesn't required in case of Fw hang */ if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) { adapter->need_fw_reset = 1; if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) goto detach; } if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) return 0; heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER); if (heartbit != adapter->heartbit) { adapter->heartbit = heartbit; adapter->fw_fail_cnt = 0; if (adapter->need_fw_reset) goto detach; return 0; } if (++adapter->fw_fail_cnt < FW_FAIL_THRESH) return 0; if (nx_dev_request_reset(adapter)) return 0; clear_bit(__NX_FW_ATTACHED, &adapter->state); dev_err(&netdev->dev, "firmware hang detected\n"); peg_status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1); dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n" "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n" "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n" "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n" "PEG_NET_4_PC: 0x%x\n", peg_status, NXRD32(adapter, NETXEN_PEG_HALT_STATUS2), NXRD32(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c), NXRD32(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c), NXRD32(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c), NXRD32(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c), NXRD32(adapter, NETXEN_CRB_PEG_NET_4 + 0x3c)); if (NX_FWERROR_PEGSTAT1(peg_status) == 0x67) dev_err(&adapter->pdev->dev, "Firmware aborted with error code 0x00006700. " "Device is being reset.\n"); detach: if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) && !test_and_set_bit(__NX_RESETTING, &adapter->state)) netxen_schedule_work(adapter, netxen_detach_work, 0); return 1; } static void netxen_fw_poll_work(struct work_struct *work) { struct netxen_adapter *adapter = container_of(work, struct netxen_adapter, fw_work.work); if (test_bit(__NX_RESETTING, &adapter->state)) goto reschedule; if (test_bit(__NX_DEV_UP, &adapter->state) && !(adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)) { if (!adapter->has_link_events) { netxen_nic_handle_phy_intr(adapter); if (adapter->link_changed) netxen_nic_set_link_parameters(adapter); } } if (netxen_check_health(adapter)) return; reschedule: netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); } static ssize_t netxen_store_bridged_mode(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct net_device *net = to_net_dev(dev); struct netxen_adapter *adapter = netdev_priv(net); unsigned long new; int ret = -EINVAL; if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG)) goto err_out; if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) goto err_out; if (kstrtoul(buf, 2, &new)) goto err_out; if (!netxen_config_bridged_mode(adapter, !!new)) ret = len; err_out: return ret; } static ssize_t netxen_show_bridged_mode(struct device *dev, struct device_attribute *attr, char *buf) { struct net_device *net = to_net_dev(dev); struct netxen_adapter *adapter; int bridged_mode = 0; adapter = netdev_priv(net); if (adapter->capabilities & NX_FW_CAPABILITY_BDG) bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED); return sprintf(buf, "%d\n", bridged_mode); } static const struct device_attribute dev_attr_bridged_mode = { .attr = { .name = "bridged_mode", .mode = 0644 }, .show = netxen_show_bridged_mode, .store = netxen_store_bridged_mode, }; static ssize_t netxen_store_diag_mode(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct netxen_adapter *adapter = dev_get_drvdata(dev); unsigned long new; if (kstrtoul(buf, 2, &new)) return -EINVAL; if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) adapter->flags ^= NETXEN_NIC_DIAG_ENABLED; return len; } static ssize_t netxen_show_diag_mode(struct device *dev, struct device_attribute *attr, char *buf) { struct netxen_adapter *adapter = dev_get_drvdata(dev); return sprintf(buf, "%d\n", !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)); } static const struct device_attribute dev_attr_diag_mode = { .attr = { .name = "diag_mode", .mode = 0644 }, .show = netxen_show_diag_mode, .store = netxen_store_diag_mode, }; static int netxen_sysfs_validate_crb(struct netxen_adapter *adapter, loff_t offset, size_t size) { size_t crb_size = 4; if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) return -EIO; if (offset < NETXEN_PCI_CRBSPACE) { if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) return -EINVAL; if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, NETXEN_PCI_CAMQM_2M_END)) crb_size = 8; else return -EINVAL; } if ((size != crb_size) || (offset & (crb_size-1))) return -EINVAL; return 0; } static ssize_t netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t offset, size_t size) { struct device *dev = kobj_to_dev(kobj); struct netxen_adapter *adapter = dev_get_drvdata(dev); u32 data; u64 qmdata; int ret; ret = netxen_sysfs_validate_crb(adapter, offset, size); if (ret != 0) return ret; if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, NETXEN_PCI_CAMQM_2M_END)) { netxen_pci_camqm_read_2M(adapter, offset, &qmdata); memcpy(buf, &qmdata, size); } else { data = NXRD32(adapter, offset); memcpy(buf, &data, size); } return size; } static ssize_t netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t offset, size_t size) { struct device *dev = kobj_to_dev(kobj); struct netxen_adapter *adapter = dev_get_drvdata(dev); u32 data; u64 qmdata; int ret; ret = netxen_sysfs_validate_crb(adapter, offset, size); if (ret != 0) return ret; if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, NETXEN_PCI_CAMQM_2M_END)) { memcpy(&qmdata, buf, size); netxen_pci_camqm_write_2M(adapter, offset, qmdata); } else { memcpy(&data, buf, size); NXWR32(adapter, offset, data); } return size; } static int netxen_sysfs_validate_mem(struct netxen_adapter *adapter, loff_t offset, size_t size) { if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) return -EIO; if ((size != 8) || (offset & 0x7)) return -EIO; return 0; } static ssize_t netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t offset, size_t size) { struct device *dev = kobj_to_dev(kobj); struct netxen_adapter *adapter = dev_get_drvdata(dev); u64 data; int ret; ret = netxen_sysfs_validate_mem(adapter, offset, size); if (ret != 0) return ret; if (adapter->pci_mem_read(adapter, offset, &data)) return -EIO; memcpy(buf, &data, size); return size; } static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t offset, size_t size) { struct device *dev = kobj_to_dev(kobj); struct netxen_adapter *adapter = dev_get_drvdata(dev); u64 data; int ret; ret = netxen_sysfs_validate_mem(adapter, offset, size); if (ret != 0) return ret; memcpy(&data, buf, size); if (adapter->pci_mem_write(adapter, offset, data)) return -EIO; return size; } static const struct bin_attribute bin_attr_crb = { .attr = { .name = "crb", .mode = 0644 }, .size = 0, .read = netxen_sysfs_read_crb, .write = netxen_sysfs_write_crb, }; static const struct bin_attribute bin_attr_mem = { .attr = { .name = "mem", .mode = 0644 }, .size = 0, .read = netxen_sysfs_read_mem, .write = netxen_sysfs_write_mem, }; static ssize_t netxen_sysfs_read_dimm(struct file *filp, struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t offset, size_t size) { struct device *dev = kobj_to_dev(kobj); struct netxen_adapter *adapter = dev_get_drvdata(dev); struct net_device *netdev = adapter->netdev; struct netxen_dimm_cfg dimm; u8 dw, rows, cols, banks, ranks; u32 val; if (size < attr->size) { netdev_err(netdev, "Invalid size\n"); return -EINVAL; } memset(&dimm, 0, sizeof(struct netxen_dimm_cfg)); val = NXRD32(adapter, NETXEN_DIMM_CAPABILITY); /* Checks if DIMM info is valid. */ if (val & NETXEN_DIMM_VALID_FLAG) { netdev_err(netdev, "Invalid DIMM flag\n"); dimm.presence = 0xff; goto out; } rows = NETXEN_DIMM_NUMROWS(val); cols = NETXEN_DIMM_NUMCOLS(val); ranks = NETXEN_DIMM_NUMRANKS(val); banks = NETXEN_DIMM_NUMBANKS(val); dw = NETXEN_DIMM_DATAWIDTH(val); dimm.presence = (val & NETXEN_DIMM_PRESENT); /* Checks if DIMM info is present. */ if (!dimm.presence) { netdev_err(netdev, "DIMM not present\n"); goto out; } dimm.dimm_type = NETXEN_DIMM_TYPE(val); switch (dimm.dimm_type) { case NETXEN_DIMM_TYPE_RDIMM: case NETXEN_DIMM_TYPE_UDIMM: case NETXEN_DIMM_TYPE_SO_DIMM: case NETXEN_DIMM_TYPE_Micro_DIMM: case NETXEN_DIMM_TYPE_Mini_RDIMM: case NETXEN_DIMM_TYPE_Mini_UDIMM: break; default: netdev_err(netdev, "Invalid DIMM type %x\n", dimm.dimm_type); goto out; } if (val & NETXEN_DIMM_MEMTYPE_DDR2_SDRAM) dimm.mem_type = NETXEN_DIMM_MEM_DDR2_SDRAM; else dimm.mem_type = NETXEN_DIMM_MEMTYPE(val); if (val & NETXEN_DIMM_SIZE) { dimm.size = NETXEN_DIMM_STD_MEM_SIZE; goto out; } if (!rows) { netdev_err(netdev, "Invalid no of rows %x\n", rows); goto out; } if (!cols) { netdev_err(netdev, "Invalid no of columns %x\n", cols); goto out; } if (!banks) { netdev_err(netdev, "Invalid no of banks %x\n", banks); goto out; } ranks += 1; switch (dw) { case 0x0: dw = 32; break; case 0x1: dw = 33; break; case 0x2: dw = 36; break; case 0x3: dw = 64; break; case 0x4: dw = 72; break; case 0x5: dw = 80; break; case 0x6: dw = 128; break; case 0x7: dw = 144; break; default: netdev_err(netdev, "Invalid data-width %x\n", dw); goto out; } dimm.size = ((1 << rows) * (1 << cols) * dw * banks * ranks) / 8; /* Size returned in MB. */ dimm.size = (dimm.size) / 0x100000; out: memcpy(buf, &dimm, sizeof(struct netxen_dimm_cfg)); return sizeof(struct netxen_dimm_cfg); } static const struct bin_attribute bin_attr_dimm = { .attr = { .name = "dimm", .mode = 0644 }, .size = sizeof(struct netxen_dimm_cfg), .read = netxen_sysfs_read_dimm, }; static void netxen_create_sysfs_entries(struct netxen_adapter *adapter) { struct device *dev = &adapter->pdev->dev; if (adapter->capabilities & NX_FW_CAPABILITY_BDG) { /* bridged_mode control */ if (device_create_file(dev, &dev_attr_bridged_mode)) { dev_warn(dev, "failed to create bridged_mode sysfs entry\n"); } } } static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter) { struct device *dev = &adapter->pdev->dev; if (adapter->capabilities & NX_FW_CAPABILITY_BDG) device_remove_file(dev, &dev_attr_bridged_mode); } static void netxen_create_diag_entries(struct netxen_adapter *adapter) { struct pci_dev *pdev = adapter->pdev; struct device *dev; dev = &pdev->dev; if (device_create_file(dev, &dev_attr_diag_mode)) dev_info(dev, "failed to create diag_mode sysfs entry\n"); if (device_create_bin_file(dev, &bin_attr_crb)) dev_info(dev, "failed to create crb sysfs entry\n"); if (device_create_bin_file(dev, &bin_attr_mem)) dev_info(dev, "failed to create mem sysfs entry\n"); if (device_create_bin_file(dev, &bin_attr_dimm)) dev_info(dev, "failed to create dimm sysfs entry\n"); } static void netxen_remove_diag_entries(struct netxen_adapter *adapter) { struct pci_dev *pdev = adapter->pdev; struct device *dev = &pdev->dev; device_remove_file(dev, &dev_attr_diag_mode); device_remove_bin_file(dev, &bin_attr_crb); device_remove_bin_file(dev, &bin_attr_mem); device_remove_bin_file(dev, &bin_attr_dimm); } #ifdef CONFIG_INET #define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops) static int netxen_destip_supported(struct netxen_adapter *adapter) { if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) return 0; if (adapter->ahw.cut_through) return 0; return 1; } static void netxen_free_ip_list(struct netxen_adapter *adapter, bool master) { struct nx_ip_list *cur, *tmp_cur; list_for_each_entry_safe(cur, tmp_cur, &adapter->ip_list, list) { if (master) { if (cur->master) { netxen_config_ipaddr(adapter, cur->ip_addr, NX_IP_DOWN); list_del(&cur->list); kfree(cur); } } else { netxen_config_ipaddr(adapter, cur->ip_addr, NX_IP_DOWN); list_del(&cur->list); kfree(cur); } } } static bool netxen_list_config_ip(struct netxen_adapter *adapter, struct in_ifaddr *ifa, unsigned long event) { struct net_device *dev; struct nx_ip_list *cur, *tmp_cur; struct list_head *head; bool ret = false; dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL; if (dev == NULL) goto out; switch (event) { case NX_IP_UP: list_for_each(head, &adapter->ip_list) { cur = list_entry(head, struct nx_ip_list, list); if (cur->ip_addr == ifa->ifa_address) goto out; } cur = kzalloc(sizeof(struct nx_ip_list), GFP_ATOMIC); if (cur == NULL) goto out; if (is_vlan_dev(dev)) dev = vlan_dev_real_dev(dev); cur->master = !!netif_is_bond_master(dev); cur->ip_addr = ifa->ifa_address; list_add_tail(&cur->list, &adapter->ip_list); netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP); ret = true; break; case NX_IP_DOWN: list_for_each_entry_safe(cur, tmp_cur, &adapter->ip_list, list) { if (cur->ip_addr == ifa->ifa_address) { list_del(&cur->list); kfree(cur); netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN); ret = true; break; } } } out: return ret; } static void netxen_config_indev_addr(struct netxen_adapter *adapter, struct net_device *dev, unsigned long event) { struct in_device *indev; struct in_ifaddr *ifa; if (!netxen_destip_supported(adapter)) return; indev = in_dev_get(dev); if (!indev) return; rcu_read_lock(); in_dev_for_each_ifa_rcu(ifa, indev) { switch (event) { case NETDEV_UP: netxen_list_config_ip(adapter, ifa, NX_IP_UP); break; case NETDEV_DOWN: netxen_list_config_ip(adapter, ifa, NX_IP_DOWN); break; default: break; } } rcu_read_unlock(); in_dev_put(indev); } static void netxen_restore_indev_addr(struct net_device *netdev, unsigned long event) { struct netxen_adapter *adapter = netdev_priv(netdev); struct nx_ip_list *pos, *tmp_pos; unsigned long ip_event; ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN; netxen_config_indev_addr(adapter, netdev, event); list_for_each_entry_safe(pos, tmp_pos, &adapter->ip_list, list) { netxen_config_ipaddr(adapter, pos->ip_addr, ip_event); } } static inline bool netxen_config_checkdev(struct net_device *dev) { struct netxen_adapter *adapter; if (!is_netxen_netdev(dev)) return false; adapter = netdev_priv(dev); if (!adapter) return false; if (!netxen_destip_supported(adapter)) return false; if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) return false; return true; } /** * netxen_config_master - configure addresses based on master * @dev: netxen device * @event: netdev event */ static void netxen_config_master(struct net_device *dev, unsigned long event) { struct net_device *master, *slave; struct netxen_adapter *adapter = netdev_priv(dev); rcu_read_lock(); master = netdev_master_upper_dev_get_rcu(dev); /* * This is the case where the netxen nic is being * enslaved and is dev_open()ed in bond_enslave() * Now we should program the bond's (and its vlans') * addresses in the netxen NIC. */ if (master && netif_is_bond_master(master) && !netif_is_bond_slave(dev)) { netxen_config_indev_addr(adapter, master, event); for_each_netdev_rcu(&init_net, slave) if (is_vlan_dev(slave) && vlan_dev_real_dev(slave) == master) netxen_config_indev_addr(adapter, slave, event); } rcu_read_unlock(); /* * This is the case where the netxen nic is being * released and is dev_close()ed in bond_release() * just before IFF_BONDING is stripped. */ if (!master && dev->priv_flags & IFF_BONDING) netxen_free_ip_list(adapter, true); } static int netxen_netdev_event(struct notifier_block *this, unsigned long event, void *ptr) { struct netxen_adapter *adapter; struct net_device *dev = netdev_notifier_info_to_dev(ptr); struct net_device *orig_dev = dev; struct net_device *slave; recheck: if (dev == NULL) goto done; if (is_vlan_dev(dev)) { dev = vlan_dev_real_dev(dev); goto recheck; } if (event == NETDEV_UP || event == NETDEV_DOWN) { /* If this is a bonding device, look for netxen-based slaves*/ if (netif_is_bond_master(dev)) { rcu_read_lock(); for_each_netdev_in_bond_rcu(dev, slave) { if (!netxen_config_checkdev(slave)) continue; adapter = netdev_priv(slave); netxen_config_indev_addr(adapter, orig_dev, event); } rcu_read_unlock(); } else { if (!netxen_config_checkdev(dev)) goto done; adapter = netdev_priv(dev); /* Act only if the actual netxen is the target */ if (orig_dev == dev) netxen_config_master(dev, event); netxen_config_indev_addr(adapter, orig_dev, event); } } done: return NOTIFY_DONE; } static int netxen_inetaddr_event(struct notifier_block *this, unsigned long event, void *ptr) { struct netxen_adapter *adapter; struct net_device *dev, *slave; struct in_ifaddr *ifa = (struct in_ifaddr *)ptr; unsigned long ip_event; dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL; ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN; recheck: if (dev == NULL) goto done; if (is_vlan_dev(dev)) { dev = vlan_dev_real_dev(dev); goto recheck; } if (event == NETDEV_UP || event == NETDEV_DOWN) { /* If this is a bonding device, look for netxen-based slaves*/ if (netif_is_bond_master(dev)) { rcu_read_lock(); for_each_netdev_in_bond_rcu(dev, slave) { if (!netxen_config_checkdev(slave)) continue; adapter = netdev_priv(slave); netxen_list_config_ip(adapter, ifa, ip_event); } rcu_read_unlock(); } else { if (!netxen_config_checkdev(dev)) goto done; adapter = netdev_priv(dev); netxen_list_config_ip(adapter, ifa, ip_event); } } done: return NOTIFY_DONE; } static struct notifier_block netxen_netdev_cb = { .notifier_call = netxen_netdev_event, }; static struct notifier_block netxen_inetaddr_cb = { .notifier_call = netxen_inetaddr_event, }; #else static void netxen_restore_indev_addr(struct net_device *dev, unsigned long event) { } static void netxen_free_ip_list(struct netxen_adapter *adapter, bool master) { } #endif static const struct pci_error_handlers netxen_err_handler = { .error_detected = netxen_io_error_detected, .slot_reset = netxen_io_slot_reset, }; static struct pci_driver netxen_driver = { .name = netxen_nic_driver_name, .id_table = netxen_pci_tbl, .probe = netxen_nic_probe, .remove = netxen_nic_remove, #ifdef CONFIG_PM .suspend = netxen_nic_suspend, .resume = netxen_nic_resume, #endif .shutdown = netxen_nic_shutdown, .err_handler = &netxen_err_handler }; static int __init netxen_init_module(void) { printk(KERN_INFO "%s\n", netxen_nic_driver_string); #ifdef CONFIG_INET register_netdevice_notifier(&netxen_netdev_cb); register_inetaddr_notifier(&netxen_inetaddr_cb); #endif return pci_register_driver(&netxen_driver); } module_init(netxen_init_module); static void __exit netxen_exit_module(void) { pci_unregister_driver(&netxen_driver); #ifdef CONFIG_INET unregister_inetaddr_notifier(&netxen_inetaddr_cb); unregister_netdevice_notifier(&netxen_netdev_cb); #endif } module_exit(netxen_exit_module);
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