/* * QLogic qlcnic NIC Driver * Copyright (c) 2009-2010 QLogic Corporation * * See LICENSE.qlcnic for copyright and licensing details. */ #include #include #include #include "qlcnic.h" #include #include #include #include #include #include #include #include MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver"); MODULE_LICENSE("GPL"); MODULE_VERSION(QLCNIC_LINUX_VERSIONID); MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME); char qlcnic_driver_name[] = "qlcnic"; static const char qlcnic_driver_string[] = "QLogic 1/10 GbE " "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID; static struct workqueue_struct *qlcnic_wq; static int qlcnic_mac_learn; module_param(qlcnic_mac_learn, int, 0444); MODULE_PARM_DESC(qlcnic_mac_learn, "Mac Filter (0=disabled, 1=enabled)"); static int use_msi = 1; module_param(use_msi, int, 0444); MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled"); static int use_msi_x = 1; module_param(use_msi_x, int, 0444); MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled"); static int auto_fw_reset = 1; module_param(auto_fw_reset, int, 0644); MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled"); static int load_fw_file; module_param(load_fw_file, int, 0444); MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file"); static int qlcnic_config_npars; module_param(qlcnic_config_npars, int, 0444); MODULE_PARM_DESC(qlcnic_config_npars, "Configure NPARs (0=disabled, 1=enabled"); static int __devinit qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent); static void __devexit qlcnic_remove(struct pci_dev *pdev); static int qlcnic_open(struct net_device *netdev); static int qlcnic_close(struct net_device *netdev); static void qlcnic_tx_timeout(struct net_device *netdev); static void qlcnic_attach_work(struct work_struct *work); static void qlcnic_fwinit_work(struct work_struct *work); static void qlcnic_fw_poll_work(struct work_struct *work); static void qlcnic_schedule_work(struct qlcnic_adapter *adapter, work_func_t func, int delay); static void qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter); static int qlcnic_poll(struct napi_struct *napi, int budget); static int qlcnic_rx_poll(struct napi_struct *napi, int budget); #ifdef CONFIG_NET_POLL_CONTROLLER static void qlcnic_poll_controller(struct net_device *netdev); #endif static void qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter); static void qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter); static void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter); static void qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter); static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding); static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8); static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter); static irqreturn_t qlcnic_tmp_intr(int irq, void *data); static irqreturn_t qlcnic_intr(int irq, void *data); static irqreturn_t qlcnic_msi_intr(int irq, void *data); static irqreturn_t qlcnic_msix_intr(int irq, void *data); static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev); static void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long); static int qlcnic_start_firmware(struct qlcnic_adapter *); static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter); static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *); static int qlcnicvf_config_led(struct qlcnic_adapter *, u32, u32); static int qlcnicvf_config_bridged_mode(struct qlcnic_adapter *, u32); static int qlcnicvf_start_firmware(struct qlcnic_adapter *); static void qlcnic_set_netdev_features(struct qlcnic_adapter *, struct qlcnic_esw_func_cfg *); static void qlcnic_vlan_rx_add(struct net_device *, u16); static void qlcnic_vlan_rx_del(struct net_device *, u16); /* PCI Device ID Table */ #define ENTRY(device) \ {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \ .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0} #define PCI_DEVICE_ID_QLOGIC_QLE824X 0x8020 static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = { ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X), {0,} }; MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl); inline void qlcnic_update_cmd_producer(struct qlcnic_adapter *adapter, struct qlcnic_host_tx_ring *tx_ring) { writel(tx_ring->producer, tx_ring->crb_cmd_producer); } static const u32 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 const struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG; static inline void qlcnic_disable_int(struct qlcnic_host_sds_ring *sds_ring) { writel(0, sds_ring->crb_intr_mask); } static inline void qlcnic_enable_int(struct qlcnic_host_sds_ring *sds_ring) { struct qlcnic_adapter *adapter = sds_ring->adapter; writel(0x1, sds_ring->crb_intr_mask); if (!QLCNIC_IS_MSI_FAMILY(adapter)) writel(0xfbff, adapter->tgt_mask_reg); } static int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count) { int size = sizeof(struct qlcnic_host_sds_ring) * count; recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL); return recv_ctx->sds_rings == NULL; } static void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx) { if (recv_ctx->sds_rings != NULL) kfree(recv_ctx->sds_rings); recv_ctx->sds_rings = NULL; } static int qlcnic_napi_add(struct qlcnic_adapter *adapter, struct net_device *netdev) { int ring; struct qlcnic_host_sds_ring *sds_ring; struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; if (qlcnic_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]; if (ring == adapter->max_sds_rings - 1) netif_napi_add(netdev, &sds_ring->napi, qlcnic_poll, QLCNIC_NETDEV_WEIGHT/adapter->max_sds_rings); else netif_napi_add(netdev, &sds_ring->napi, qlcnic_rx_poll, QLCNIC_NETDEV_WEIGHT*2); } return 0; } static void qlcnic_napi_del(struct qlcnic_adapter *adapter) { int ring; struct qlcnic_host_sds_ring *sds_ring; struct qlcnic_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); } qlcnic_free_sds_rings(adapter->recv_ctx); } static void qlcnic_napi_enable(struct qlcnic_adapter *adapter) { int ring; struct qlcnic_host_sds_ring *sds_ring; struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) return; for (ring = 0; ring < adapter->max_sds_rings; ring++) { sds_ring = &recv_ctx->sds_rings[ring]; napi_enable(&sds_ring->napi); qlcnic_enable_int(sds_ring); } } static void qlcnic_napi_disable(struct qlcnic_adapter *adapter) { int ring; struct qlcnic_host_sds_ring *sds_ring; struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) return; for (ring = 0; ring < adapter->max_sds_rings; ring++) { sds_ring = &recv_ctx->sds_rings[ring]; qlcnic_disable_int(sds_ring); napi_synchronize(&sds_ring->napi); napi_disable(&sds_ring->napi); } } static void qlcnic_clear_stats(struct qlcnic_adapter *adapter) { memset(&adapter->stats, 0, sizeof(adapter->stats)); } static void qlcnic_set_msix_bit(struct pci_dev *pdev, int enable) { u32 control; int pos; pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX); if (pos) { pci_read_config_dword(pdev, pos, &control); if (enable) control |= PCI_MSIX_FLAGS_ENABLE; else control = 0; pci_write_config_dword(pdev, pos, control); } } static void qlcnic_init_msix_entries(struct qlcnic_adapter *adapter, int count) { int i; for (i = 0; i < count; i++) adapter->msix_entries[i].entry = i; } static int qlcnic_read_mac_addr(struct qlcnic_adapter *adapter) { u8 mac_addr[ETH_ALEN]; struct net_device *netdev = adapter->netdev; struct pci_dev *pdev = adapter->pdev; if (qlcnic_get_mac_address(adapter, mac_addr) != 0) return -EIO; memcpy(netdev->dev_addr, mac_addr, ETH_ALEN); memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len); memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len); /* set station address */ if (!is_valid_ether_addr(netdev->perm_addr)) dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr); return 0; } static int qlcnic_set_mac(struct net_device *netdev, void *p) { struct qlcnic_adapter *adapter = netdev_priv(netdev); struct sockaddr *addr = p; if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED)) return -EOPNOTSUPP; if (!is_valid_ether_addr(addr->sa_data)) return -EINVAL; if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) { netif_device_detach(netdev); qlcnic_napi_disable(adapter); } memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len); memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); qlcnic_set_multi(adapter->netdev); if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) { netif_device_attach(netdev); qlcnic_napi_enable(adapter); } return 0; } static const struct net_device_ops qlcnic_netdev_ops = { .ndo_open = qlcnic_open, .ndo_stop = qlcnic_close, .ndo_start_xmit = qlcnic_xmit_frame, .ndo_get_stats = qlcnic_get_stats, .ndo_validate_addr = eth_validate_addr, .ndo_set_multicast_list = qlcnic_set_multi, .ndo_set_mac_address = qlcnic_set_mac, .ndo_change_mtu = qlcnic_change_mtu, .ndo_fix_features = qlcnic_fix_features, .ndo_set_features = qlcnic_set_features, .ndo_tx_timeout = qlcnic_tx_timeout, .ndo_vlan_rx_add_vid = qlcnic_vlan_rx_add, .ndo_vlan_rx_kill_vid = qlcnic_vlan_rx_del, #ifdef CONFIG_NET_POLL_CONTROLLER .ndo_poll_controller = qlcnic_poll_controller, #endif }; static struct qlcnic_nic_template qlcnic_ops = { .config_bridged_mode = qlcnic_config_bridged_mode, .config_led = qlcnic_config_led, .start_firmware = qlcnic_start_firmware }; static struct qlcnic_nic_template qlcnic_vf_ops = { .config_bridged_mode = qlcnicvf_config_bridged_mode, .config_led = qlcnicvf_config_led, .start_firmware = qlcnicvf_start_firmware }; static int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix) { struct pci_dev *pdev = adapter->pdev; int err = -1; adapter->max_sds_rings = 1; adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED); qlcnic_set_msix_bit(pdev, 0); if (adapter->msix_supported) { enable_msix: qlcnic_init_msix_entries(adapter, num_msix); err = pci_enable_msix(pdev, adapter->msix_entries, num_msix); if (err == 0) { adapter->flags |= QLCNIC_MSIX_ENABLED; qlcnic_set_msix_bit(pdev, 1); adapter->max_sds_rings = num_msix; dev_info(&pdev->dev, "using msi-x interrupts\n"); return err; } if (err > 0) { num_msix = rounddown_pow_of_two(err); if (num_msix) goto enable_msix; } } return err; } static void qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter) { const struct qlcnic_legacy_intr_set *legacy_intrp; struct pci_dev *pdev = adapter->pdev; if (use_msi && !pci_enable_msi(pdev)) { adapter->flags |= QLCNIC_MSI_ENABLED; adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter, msi_tgt_status[adapter->ahw->pci_func]); dev_info(&pdev->dev, "using msi interrupts\n"); adapter->msix_entries[0].vector = pdev->irq; return; } legacy_intrp = &legacy_intr[adapter->ahw->pci_func]; adapter->int_vec_bit = legacy_intrp->int_vec_bit; adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter, legacy_intrp->tgt_status_reg); adapter->tgt_mask_reg = qlcnic_get_ioaddr(adapter, legacy_intrp->tgt_mask_reg); adapter->isr_int_vec = qlcnic_get_ioaddr(adapter, ISR_INT_VECTOR); adapter->crb_int_state_reg = qlcnic_get_ioaddr(adapter, ISR_INT_STATE_REG); dev_info(&pdev->dev, "using legacy interrupts\n"); adapter->msix_entries[0].vector = pdev->irq; } static void qlcnic_setup_intr(struct qlcnic_adapter *adapter) { int num_msix; if (adapter->msix_supported) { num_msix = rounddown_pow_of_two(min_t(int, num_online_cpus(), QLCNIC_DEF_NUM_STS_DESC_RINGS)); } else num_msix = 1; if (!qlcnic_enable_msix(adapter, num_msix)) return; qlcnic_enable_msi_legacy(adapter); } static void qlcnic_teardown_intr(struct qlcnic_adapter *adapter) { if (adapter->flags & QLCNIC_MSIX_ENABLED) pci_disable_msix(adapter->pdev); if (adapter->flags & QLCNIC_MSI_ENABLED) pci_disable_msi(adapter->pdev); } static void qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter) { if (adapter->ahw->pci_base0 != NULL) iounmap(adapter->ahw->pci_base0); } static int qlcnic_init_pci_info(struct qlcnic_adapter *adapter) { struct qlcnic_pci_info *pci_info; int i, ret = 0; u8 pfn; pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL); if (!pci_info) return -ENOMEM; adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) * QLCNIC_MAX_PCI_FUNC, GFP_KERNEL); if (!adapter->npars) { ret = -ENOMEM; goto err_pci_info; } adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) * QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL); if (!adapter->eswitch) { ret = -ENOMEM; goto err_npars; } ret = qlcnic_get_pci_info(adapter, pci_info); if (ret) goto err_eswitch; for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) { pfn = pci_info[i].id; if (pfn > QLCNIC_MAX_PCI_FUNC) { ret = QL_STATUS_INVALID_PARAM; goto err_eswitch; } adapter->npars[pfn].active = (u8)pci_info[i].active; adapter->npars[pfn].type = (u8)pci_info[i].type; adapter->npars[pfn].phy_port = (u8)pci_info[i].default_port; adapter->npars[pfn].min_bw = pci_info[i].tx_min_bw; adapter->npars[pfn].max_bw = pci_info[i].tx_max_bw; } for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++) adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE; kfree(pci_info); return 0; err_eswitch: kfree(adapter->eswitch); adapter->eswitch = NULL; err_npars: kfree(adapter->npars); adapter->npars = NULL; err_pci_info: kfree(pci_info); return ret; } static int qlcnic_set_function_modes(struct qlcnic_adapter *adapter) { u8 id; u32 ref_count; int i, ret = 1; u32 data = QLCNIC_MGMT_FUNC; void __iomem *priv_op = adapter->ahw->pci_base0 + QLCNIC_DRV_OP_MODE; /* If other drivers are not in use set their privilege level */ ref_count = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE); ret = qlcnic_api_lock(adapter); if (ret) goto err_lock; if (qlcnic_config_npars) { for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) { id = i; if (adapter->npars[i].type != QLCNIC_TYPE_NIC || id == adapter->ahw->pci_func) continue; data |= (qlcnic_config_npars & QLC_DEV_SET_DRV(0xf, id)); } } else { data = readl(priv_op); data = (data & ~QLC_DEV_SET_DRV(0xf, adapter->ahw->pci_func)) | (QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, adapter->ahw->pci_func)); } writel(data, priv_op); qlcnic_api_unlock(adapter); err_lock: return ret; } static void qlcnic_check_vf(struct qlcnic_adapter *adapter) { void __iomem *msix_base_addr; void __iomem *priv_op; u32 func; u32 msix_base; u32 op_mode, priv_level; /* Determine FW API version */ adapter->fw_hal_version = readl(adapter->ahw->pci_base0 + QLCNIC_FW_API); /* Find PCI function number */ pci_read_config_dword(adapter->pdev, QLCNIC_MSIX_TABLE_OFFSET, &func); msix_base_addr = adapter->ahw->pci_base0 + QLCNIC_MSIX_BASE; msix_base = readl(msix_base_addr); func = (func - msix_base)/QLCNIC_MSIX_TBL_PGSIZE; adapter->ahw->pci_func = func; /* Determine function privilege level */ priv_op = adapter->ahw->pci_base0 + QLCNIC_DRV_OP_MODE; op_mode = readl(priv_op); if (op_mode == QLC_DEV_DRV_DEFAULT) priv_level = QLCNIC_MGMT_FUNC; else priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func); if (priv_level == QLCNIC_NON_PRIV_FUNC) { adapter->op_mode = QLCNIC_NON_PRIV_FUNC; dev_info(&adapter->pdev->dev, "HAL Version: %d Non Privileged function\n", adapter->fw_hal_version); adapter->nic_ops = &qlcnic_vf_ops; } else adapter->nic_ops = &qlcnic_ops; } static int qlcnic_setup_pci_map(struct qlcnic_adapter *adapter) { void __iomem *mem_ptr0 = NULL; resource_size_t mem_base; unsigned long mem_len, pci_len0 = 0; struct pci_dev *pdev = adapter->pdev; /* remap phys address */ mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ mem_len = pci_resource_len(pdev, 0); if (mem_len == QLCNIC_PCI_2MB_SIZE) { mem_ptr0 = pci_ioremap_bar(pdev, 0); if (mem_ptr0 == NULL) { dev_err(&pdev->dev, "failed to map PCI bar 0\n"); return -EIO; } pci_len0 = mem_len; } else { return -EIO; } dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20)); adapter->ahw->pci_base0 = mem_ptr0; adapter->ahw->pci_len0 = pci_len0; qlcnic_check_vf(adapter); adapter->ahw->ocm_win_crb = qlcnic_get_ioaddr(adapter, QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG( adapter->ahw->pci_func))); return 0; } static void get_brd_name(struct qlcnic_adapter *adapter, char *name) { struct pci_dev *pdev = adapter->pdev; int i, found = 0; for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) { if (qlcnic_boards[i].vendor == pdev->vendor && qlcnic_boards[i].device == pdev->device && qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor && qlcnic_boards[i].sub_device == pdev->subsystem_device) { sprintf(name, "%pM: %s" , adapter->mac_addr, qlcnic_boards[i].short_name); found = 1; break; } } if (!found) sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr); } static void qlcnic_check_options(struct qlcnic_adapter *adapter) { u32 fw_major, fw_minor, fw_build; struct pci_dev *pdev = adapter->pdev; fw_major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR); fw_minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR); fw_build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB); adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build); dev_info(&pdev->dev, "firmware v%d.%d.%d\n", fw_major, fw_minor, fw_build); if (adapter->ahw->port_type == QLCNIC_XGBE) { if (adapter->flags & QLCNIC_ESWITCH_ENABLED) { adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF; adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF; } else { adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G; adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G; } adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G; adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G; } else if (adapter->ahw->port_type == QLCNIC_GBE) { adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G; adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G; adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G; adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G; } adapter->msix_supported = !!use_msi_x; adapter->num_txd = MAX_CMD_DESCRIPTORS; adapter->max_rds_rings = MAX_RDS_RINGS; } static int qlcnic_initialize_nic(struct qlcnic_adapter *adapter) { int err; struct qlcnic_info nic_info; err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func); if (err) return err; adapter->physical_port = (u8)nic_info.phys_port; adapter->switch_mode = nic_info.switch_mode; adapter->max_tx_ques = nic_info.max_tx_ques; adapter->max_rx_ques = nic_info.max_rx_ques; adapter->capabilities = nic_info.capabilities; adapter->max_mac_filters = nic_info.max_mac_filters; adapter->max_mtu = nic_info.max_mtu; if (adapter->capabilities & BIT_6) adapter->flags |= QLCNIC_ESWITCH_ENABLED; else adapter->flags &= ~QLCNIC_ESWITCH_ENABLED; return err; } static void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter, struct qlcnic_esw_func_cfg *esw_cfg) { if (esw_cfg->discard_tagged) adapter->flags &= ~QLCNIC_TAGGING_ENABLED; else adapter->flags |= QLCNIC_TAGGING_ENABLED; if (esw_cfg->vlan_id) adapter->pvid = esw_cfg->vlan_id; else adapter->pvid = 0; } static void qlcnic_vlan_rx_add(struct net_device *netdev, u16 vid) { struct qlcnic_adapter *adapter = netdev_priv(netdev); set_bit(vid, adapter->vlans); } static void qlcnic_vlan_rx_del(struct net_device *netdev, u16 vid) { struct qlcnic_adapter *adapter = netdev_priv(netdev); qlcnic_restore_indev_addr(netdev, NETDEV_DOWN); clear_bit(vid, adapter->vlans); } static void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter, struct qlcnic_esw_func_cfg *esw_cfg) { adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED | QLCNIC_PROMISC_DISABLED); if (esw_cfg->mac_anti_spoof) adapter->flags |= QLCNIC_MACSPOOF; if (!esw_cfg->mac_override) adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED; if (!esw_cfg->promisc_mode) adapter->flags |= QLCNIC_PROMISC_DISABLED; qlcnic_set_netdev_features(adapter, esw_cfg); } static int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter) { struct qlcnic_esw_func_cfg esw_cfg; if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) return 0; esw_cfg.pci_func = adapter->ahw->pci_func; if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg)) return -EIO; qlcnic_set_vlan_config(adapter, &esw_cfg); qlcnic_set_eswitch_port_features(adapter, &esw_cfg); return 0; } static void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter, struct qlcnic_esw_func_cfg *esw_cfg) { struct net_device *netdev = adapter->netdev; unsigned long features, vlan_features; features = (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM | NETIF_F_IPV6_CSUM | NETIF_F_GRO); vlan_features = (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_HW_VLAN_FILTER); if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO) { features |= (NETIF_F_TSO | NETIF_F_TSO6); vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6); } if (netdev->features & NETIF_F_LRO) features |= NETIF_F_LRO; if (esw_cfg->offload_flags & BIT_0) { netdev->features |= features; if (!(esw_cfg->offload_flags & BIT_1)) netdev->features &= ~NETIF_F_TSO; if (!(esw_cfg->offload_flags & BIT_2)) netdev->features &= ~NETIF_F_TSO6; } else { netdev->features &= ~features; } netdev->vlan_features = (features & vlan_features); } static int qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter) { void __iomem *priv_op; u32 op_mode, priv_level; int err = 0; err = qlcnic_initialize_nic(adapter); if (err) return err; if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED) return 0; priv_op = adapter->ahw->pci_base0 + QLCNIC_DRV_OP_MODE; op_mode = readl(priv_op); priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func); if (op_mode == QLC_DEV_DRV_DEFAULT) priv_level = QLCNIC_MGMT_FUNC; else priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func); if (adapter->flags & QLCNIC_ESWITCH_ENABLED) { if (priv_level == QLCNIC_MGMT_FUNC) { adapter->op_mode = QLCNIC_MGMT_FUNC; err = qlcnic_init_pci_info(adapter); if (err) return err; /* Set privilege level for other functions */ qlcnic_set_function_modes(adapter); dev_info(&adapter->pdev->dev, "HAL Version: %d, Management function\n", adapter->fw_hal_version); } else if (priv_level == QLCNIC_PRIV_FUNC) { adapter->op_mode = QLCNIC_PRIV_FUNC; dev_info(&adapter->pdev->dev, "HAL Version: %d, Privileged function\n", adapter->fw_hal_version); } } adapter->flags |= QLCNIC_ADAPTER_INITIALIZED; return err; } static int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter) { struct qlcnic_esw_func_cfg esw_cfg; struct qlcnic_npar_info *npar; u8 i; if (adapter->need_fw_reset) return 0; for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) { if (adapter->npars[i].type != QLCNIC_TYPE_NIC) continue; memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg)); esw_cfg.pci_func = i; esw_cfg.offload_flags = BIT_0; esw_cfg.mac_override = BIT_0; esw_cfg.promisc_mode = BIT_0; if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO) esw_cfg.offload_flags |= (BIT_1 | BIT_2); if (qlcnic_config_switch_port(adapter, &esw_cfg)) return -EIO; npar = &adapter->npars[i]; npar->pvid = esw_cfg.vlan_id; npar->mac_override = esw_cfg.mac_override; npar->mac_anti_spoof = esw_cfg.mac_anti_spoof; npar->discard_tagged = esw_cfg.discard_tagged; npar->promisc_mode = esw_cfg.promisc_mode; npar->offload_flags = esw_cfg.offload_flags; } return 0; } static int qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter, struct qlcnic_npar_info *npar, int pci_func) { struct qlcnic_esw_func_cfg esw_cfg; esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS; esw_cfg.pci_func = pci_func; esw_cfg.vlan_id = npar->pvid; esw_cfg.mac_override = npar->mac_override; esw_cfg.discard_tagged = npar->discard_tagged; esw_cfg.mac_anti_spoof = npar->mac_anti_spoof; esw_cfg.offload_flags = npar->offload_flags; esw_cfg.promisc_mode = npar->promisc_mode; if (qlcnic_config_switch_port(adapter, &esw_cfg)) return -EIO; esw_cfg.op_mode = QLCNIC_ADD_VLAN; if (qlcnic_config_switch_port(adapter, &esw_cfg)) return -EIO; return 0; } static int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter) { int i, err; struct qlcnic_npar_info *npar; struct qlcnic_info nic_info; if (!adapter->need_fw_reset) return 0; /* Set the NPAR config data after FW reset */ for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) { npar = &adapter->npars[i]; if (npar->type != QLCNIC_TYPE_NIC) continue; err = qlcnic_get_nic_info(adapter, &nic_info, i); if (err) return err; nic_info.min_tx_bw = npar->min_bw; nic_info.max_tx_bw = npar->max_bw; err = qlcnic_set_nic_info(adapter, &nic_info); if (err) return err; if (npar->enable_pm) { err = qlcnic_config_port_mirroring(adapter, npar->dest_npar, 1, i); if (err) return err; } err = qlcnic_reset_eswitch_config(adapter, npar, i); if (err) return err; } return 0; } static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter) { u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO; u32 npar_state; if (adapter->op_mode == QLCNIC_MGMT_FUNC) return 0; npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE); while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) { msleep(1000); npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE); } if (!npar_opt_timeo) { dev_err(&adapter->pdev->dev, "Waiting for NPAR state to opertional timeout\n"); return -EIO; } return 0; } static int qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter) { int err; if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) || adapter->op_mode != QLCNIC_MGMT_FUNC) return 0; err = qlcnic_set_default_offload_settings(adapter); if (err) return err; err = qlcnic_reset_npar_config(adapter); if (err) return err; qlcnic_dev_set_npar_ready(adapter); return err; } static int qlcnic_start_firmware(struct qlcnic_adapter *adapter) { int err; err = qlcnic_can_start_firmware(adapter); if (err < 0) return err; else if (!err) goto check_fw_status; if (load_fw_file) qlcnic_request_firmware(adapter); else { err = qlcnic_check_flash_fw_ver(adapter); if (err) goto err_out; adapter->fw_type = QLCNIC_FLASH_ROMIMAGE; } err = qlcnic_need_fw_reset(adapter); if (err == 0) goto check_fw_status; err = qlcnic_pinit_from_rom(adapter); if (err) goto err_out; err = qlcnic_load_firmware(adapter); if (err) goto err_out; qlcnic_release_firmware(adapter); QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION); check_fw_status: err = qlcnic_check_fw_status(adapter); if (err) goto err_out; QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY); qlcnic_idc_debug_info(adapter, 1); err = qlcnic_check_eswitch_mode(adapter); if (err) { dev_err(&adapter->pdev->dev, "Memory allocation failed for eswitch\n"); goto err_out; } err = qlcnic_set_mgmt_operations(adapter); if (err) goto err_out; qlcnic_check_options(adapter); adapter->need_fw_reset = 0; qlcnic_release_firmware(adapter); return 0; err_out: QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED); dev_err(&adapter->pdev->dev, "Device state set to failed\n"); qlcnic_release_firmware(adapter); return err; } static int qlcnic_request_irq(struct qlcnic_adapter *adapter) { irq_handler_t handler; struct qlcnic_host_sds_ring *sds_ring; int err, ring; unsigned long flags = 0; struct net_device *netdev = adapter->netdev; struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) { handler = qlcnic_tmp_intr; if (!QLCNIC_IS_MSI_FAMILY(adapter)) flags |= IRQF_SHARED; } else { if (adapter->flags & QLCNIC_MSIX_ENABLED) handler = qlcnic_msix_intr; else if (adapter->flags & QLCNIC_MSI_ENABLED) handler = qlcnic_msi_intr; else { flags |= IRQF_SHARED; handler = qlcnic_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 qlcnic_free_irq(struct qlcnic_adapter *adapter) { int ring; struct qlcnic_host_sds_ring *sds_ring; struct qlcnic_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 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev) { int ring; struct qlcnic_host_rds_ring *rds_ring; if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) return -EIO; if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) return 0; if (qlcnic_set_eswitch_port_config(adapter)) return -EIO; if (qlcnic_fw_create_ctx(adapter)) return -EIO; for (ring = 0; ring < adapter->max_rds_rings; ring++) { rds_ring = &adapter->recv_ctx->rds_rings[ring]; qlcnic_post_rx_buffers(adapter, rds_ring); } qlcnic_set_multi(netdev); qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu); adapter->ahw->linkup = 0; if (adapter->max_sds_rings > 1) qlcnic_config_rss(adapter, 1); qlcnic_config_intr_coalesce(adapter); if (netdev->features & NETIF_F_LRO) qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED); qlcnic_napi_enable(adapter); qlcnic_linkevent_request(adapter, 1); adapter->reset_context = 0; set_bit(__QLCNIC_DEV_UP, &adapter->state); return 0; } /* Usage: During resume and firmware recovery module.*/ static int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev) { int err = 0; rtnl_lock(); if (netif_running(netdev)) err = __qlcnic_up(adapter, netdev); rtnl_unlock(); return err; } static void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev) { if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) return; if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state)) return; smp_mb(); spin_lock(&adapter->tx_clean_lock); netif_carrier_off(netdev); netif_tx_disable(netdev); qlcnic_free_mac_list(adapter); if (adapter->fhash.fnum) qlcnic_delete_lb_filters(adapter); qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE); qlcnic_napi_disable(adapter); qlcnic_fw_destroy_ctx(adapter); qlcnic_reset_rx_buffers_list(adapter); qlcnic_release_tx_buffers(adapter); spin_unlock(&adapter->tx_clean_lock); } /* Usage: During suspend and firmware recovery module */ static void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev) { rtnl_lock(); if (netif_running(netdev)) __qlcnic_down(adapter, netdev); rtnl_unlock(); } static int qlcnic_attach(struct qlcnic_adapter *adapter) { struct net_device *netdev = adapter->netdev; struct pci_dev *pdev = adapter->pdev; int err; if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) return 0; err = qlcnic_napi_add(adapter, netdev); if (err) return err; err = qlcnic_alloc_sw_resources(adapter); if (err) { dev_err(&pdev->dev, "Error in setting sw resources\n"); goto err_out_napi_del; } err = qlcnic_alloc_hw_resources(adapter); if (err) { dev_err(&pdev->dev, "Error in setting hw resources\n"); goto err_out_free_sw; } err = qlcnic_request_irq(adapter); if (err) { dev_err(&pdev->dev, "failed to setup interrupt\n"); goto err_out_free_hw; } qlcnic_create_sysfs_entries(adapter); adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC; return 0; err_out_free_hw: qlcnic_free_hw_resources(adapter); err_out_free_sw: qlcnic_free_sw_resources(adapter); err_out_napi_del: qlcnic_napi_del(adapter); return err; } static void qlcnic_detach(struct qlcnic_adapter *adapter) { if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) return; qlcnic_remove_sysfs_entries(adapter); qlcnic_free_hw_resources(adapter); qlcnic_release_rx_buffers(adapter); qlcnic_free_irq(adapter); qlcnic_napi_del(adapter); qlcnic_free_sw_resources(adapter); adapter->is_up = 0; } void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings) { struct qlcnic_adapter *adapter = netdev_priv(netdev); struct qlcnic_host_sds_ring *sds_ring; int ring; clear_bit(__QLCNIC_DEV_UP, &adapter->state); if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) { for (ring = 0; ring < adapter->max_sds_rings; ring++) { sds_ring = &adapter->recv_ctx->sds_rings[ring]; qlcnic_disable_int(sds_ring); } } qlcnic_fw_destroy_ctx(adapter); qlcnic_detach(adapter); adapter->diag_test = 0; adapter->max_sds_rings = max_sds_rings; if (qlcnic_attach(adapter)) goto out; if (netif_running(netdev)) __qlcnic_up(adapter, netdev); out: netif_device_attach(netdev); } static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter) { int err = 0; adapter->ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL); if (!adapter->ahw) { dev_err(&adapter->pdev->dev, "Failed to allocate recv ctx resources for adapter\n"); err = -ENOMEM; goto err_out; } adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context), GFP_KERNEL); if (!adapter->recv_ctx) { dev_err(&adapter->pdev->dev, "Failed to allocate recv ctx resources for adapter\n"); kfree(adapter->ahw); adapter->ahw = NULL; err = -ENOMEM; goto err_out; } /* Initialize interrupt coalesce parameters */ adapter->ahw->coal.flag = QLCNIC_INTR_DEFAULT; adapter->ahw->coal.rx_time_us = QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US; adapter->ahw->coal.rx_packets = QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS; err_out: return err; } static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter) { kfree(adapter->recv_ctx); adapter->recv_ctx = NULL; if (adapter->ahw->fw_dump.tmpl_hdr) { vfree(adapter->ahw->fw_dump.tmpl_hdr); adapter->ahw->fw_dump.tmpl_hdr = NULL; } kfree(adapter->ahw); adapter->ahw = NULL; } int qlcnic_diag_alloc_res(struct net_device *netdev, int test) { struct qlcnic_adapter *adapter = netdev_priv(netdev); struct qlcnic_host_sds_ring *sds_ring; struct qlcnic_host_rds_ring *rds_ring; int ring; int ret; netif_device_detach(netdev); if (netif_running(netdev)) __qlcnic_down(adapter, netdev); qlcnic_detach(adapter); adapter->max_sds_rings = 1; adapter->diag_test = test; ret = qlcnic_attach(adapter); if (ret) { netif_device_attach(netdev); return ret; } ret = qlcnic_fw_create_ctx(adapter); if (ret) { qlcnic_detach(adapter); netif_device_attach(netdev); return ret; } for (ring = 0; ring < adapter->max_rds_rings; ring++) { rds_ring = &adapter->recv_ctx->rds_rings[ring]; qlcnic_post_rx_buffers(adapter, rds_ring); } if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) { for (ring = 0; ring < adapter->max_sds_rings; ring++) { sds_ring = &adapter->recv_ctx->sds_rings[ring]; qlcnic_enable_int(sds_ring); } } if (adapter->diag_test == QLCNIC_LOOPBACK_TEST) { adapter->ahw->loopback_state = 0; qlcnic_linkevent_request(adapter, 1); } set_bit(__QLCNIC_DEV_UP, &adapter->state); return 0; } /* Reset context in hardware only */ static int qlcnic_reset_hw_context(struct qlcnic_adapter *adapter) { struct net_device *netdev = adapter->netdev; if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) return -EBUSY; netif_device_detach(netdev); qlcnic_down(adapter, netdev); qlcnic_up(adapter, netdev); netif_device_attach(netdev); clear_bit(__QLCNIC_RESETTING, &adapter->state); return 0; } int qlcnic_reset_context(struct qlcnic_adapter *adapter) { int err = 0; struct net_device *netdev = adapter->netdev; if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) return -EBUSY; if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) { netif_device_detach(netdev); if (netif_running(netdev)) __qlcnic_down(adapter, netdev); qlcnic_detach(adapter); if (netif_running(netdev)) { err = qlcnic_attach(adapter); if (!err) __qlcnic_up(adapter, netdev); } netif_device_attach(netdev); } clear_bit(__QLCNIC_RESETTING, &adapter->state); return err; } static int qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev, u8 pci_using_dac) { int err; struct pci_dev *pdev = adapter->pdev; adapter->mc_enabled = 0; adapter->max_mc_count = 38; netdev->netdev_ops = &qlcnic_netdev_ops; netdev->watchdog_timeo = 5*HZ; qlcnic_change_mtu(netdev, netdev->mtu); SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops); netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM; if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO) netdev->hw_features |= NETIF_F_TSO | NETIF_F_TSO6; if (pci_using_dac) netdev->hw_features |= NETIF_F_HIGHDMA; netdev->vlan_features = netdev->hw_features; if (adapter->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX) netdev->hw_features |= NETIF_F_HW_VLAN_TX; if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO) netdev->hw_features |= NETIF_F_LRO; netdev->features |= netdev->hw_features | NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER; netdev->irq = adapter->msix_entries[0].vector; err = register_netdev(netdev); if (err) { dev_err(&pdev->dev, "failed to register net device\n"); return err; } return 0; } static int qlcnic_set_dma_mask(struct pci_dev *pdev, u8 *pci_using_dac) { if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) && !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) *pci_using_dac = 1; else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) && !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) *pci_using_dac = 0; else { dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n"); return -EIO; } return 0; } static int qlcnic_alloc_msix_entries(struct qlcnic_adapter *adapter, u16 count) { adapter->msix_entries = kcalloc(count, sizeof(struct msix_entry), GFP_KERNEL); if (adapter->msix_entries) return 0; dev_err(&adapter->pdev->dev, "failed allocating msix_entries\n"); return -ENOMEM; } static int __devinit qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { struct net_device *netdev = NULL; struct qlcnic_adapter *adapter = NULL; int err; uint8_t revision_id; uint8_t pci_using_dac; char brd_name[QLCNIC_MAX_BOARD_NAME_LEN]; err = pci_enable_device(pdev); if (err) return err; if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { err = -ENODEV; goto err_out_disable_pdev; } err = qlcnic_set_dma_mask(pdev, &pci_using_dac); if (err) goto err_out_disable_pdev; err = pci_request_regions(pdev, qlcnic_driver_name); if (err) goto err_out_disable_pdev; pci_set_master(pdev); pci_enable_pcie_error_reporting(pdev); netdev = alloc_etherdev(sizeof(struct qlcnic_adapter)); if (!netdev) { dev_err(&pdev->dev, "failed to allocate net_device\n"); err = -ENOMEM; goto err_out_free_res; } SET_NETDEV_DEV(netdev, &pdev->dev); adapter = netdev_priv(netdev); adapter->netdev = netdev; adapter->pdev = pdev; if (qlcnic_alloc_adapter_resources(adapter)) goto err_out_free_netdev; adapter->dev_rst_time = jiffies; revision_id = pdev->revision; adapter->ahw->revision_id = revision_id; adapter->mac_learn = qlcnic_mac_learn; rwlock_init(&adapter->ahw->crb_lock); mutex_init(&adapter->ahw->mem_lock); spin_lock_init(&adapter->tx_clean_lock); INIT_LIST_HEAD(&adapter->mac_list); err = qlcnic_setup_pci_map(adapter); if (err) goto err_out_free_hw; /* This will be reset for mezz cards */ adapter->portnum = adapter->ahw->pci_func; err = qlcnic_get_board_info(adapter); if (err) { dev_err(&pdev->dev, "Error getting board config info.\n"); goto err_out_iounmap; } err = qlcnic_setup_idc_param(adapter); if (err) goto err_out_iounmap; adapter->flags |= QLCNIC_NEED_FLR; err = adapter->nic_ops->start_firmware(adapter); if (err) { dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"); goto err_out_decr_ref; } /* Get FW dump template and store it */ if (adapter->op_mode != QLCNIC_NON_PRIV_FUNC) if (!qlcnic_fw_cmd_get_minidump_temp(adapter)) dev_info(&pdev->dev, "Supports FW dump capability\n"); if (qlcnic_read_mac_addr(adapter)) dev_warn(&pdev->dev, "failed to read mac addr\n"); if (adapter->portnum == 0) { get_brd_name(adapter, brd_name); pr_info("%s: %s Board Chip rev 0x%x\n", module_name(THIS_MODULE), brd_name, adapter->ahw->revision_id); } qlcnic_clear_stats(adapter); err = qlcnic_alloc_msix_entries(adapter, adapter->max_rx_ques); if (err) goto err_out_decr_ref; qlcnic_setup_intr(adapter); err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac); if (err) goto err_out_disable_msi; pci_set_drvdata(pdev, adapter); qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY); switch (adapter->ahw->port_type) { case QLCNIC_GBE: dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n", adapter->netdev->name); break; case QLCNIC_XGBE: dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n", adapter->netdev->name); break; } if (adapter->mac_learn) qlcnic_alloc_lb_filters_mem(adapter); qlcnic_create_diag_entries(adapter); return 0; err_out_disable_msi: qlcnic_teardown_intr(adapter); kfree(adapter->msix_entries); err_out_decr_ref: qlcnic_clr_all_drv_state(adapter, 0); err_out_iounmap: qlcnic_cleanup_pci_map(adapter); err_out_free_hw: qlcnic_free_adapter_resources(adapter); err_out_free_netdev: free_netdev(netdev); err_out_free_res: pci_release_regions(pdev); err_out_disable_pdev: pci_set_drvdata(pdev, NULL); pci_disable_device(pdev); return err; } static void __devexit qlcnic_remove(struct pci_dev *pdev) { struct qlcnic_adapter *adapter; struct net_device *netdev; adapter = pci_get_drvdata(pdev); if (adapter == NULL) return; netdev = adapter->netdev; qlcnic_cancel_fw_work(adapter); unregister_netdev(netdev); qlcnic_detach(adapter); if (adapter->npars != NULL) kfree(adapter->npars); if (adapter->eswitch != NULL) kfree(adapter->eswitch); qlcnic_clr_all_drv_state(adapter, 0); clear_bit(__QLCNIC_RESETTING, &adapter->state); qlcnic_free_lb_filters_mem(adapter); qlcnic_teardown_intr(adapter); kfree(adapter->msix_entries); qlcnic_remove_diag_entries(adapter); qlcnic_cleanup_pci_map(adapter); qlcnic_release_firmware(adapter); pci_disable_pcie_error_reporting(pdev); pci_release_regions(pdev); pci_disable_device(pdev); pci_set_drvdata(pdev, NULL); qlcnic_free_adapter_resources(adapter); free_netdev(netdev); } static int __qlcnic_shutdown(struct pci_dev *pdev) { struct qlcnic_adapter *adapter = pci_get_drvdata(pdev); struct net_device *netdev = adapter->netdev; int retval; netif_device_detach(netdev); qlcnic_cancel_fw_work(adapter); if (netif_running(netdev)) qlcnic_down(adapter, netdev); qlcnic_clr_all_drv_state(adapter, 0); clear_bit(__QLCNIC_RESETTING, &adapter->state); retval = pci_save_state(pdev); if (retval) return retval; if (qlcnic_wol_supported(adapter)) { pci_enable_wake(pdev, PCI_D3cold, 1); pci_enable_wake(pdev, PCI_D3hot, 1); } return 0; } static void qlcnic_shutdown(struct pci_dev *pdev) { if (__qlcnic_shutdown(pdev)) return; pci_disable_device(pdev); } #ifdef CONFIG_PM static int qlcnic_suspend(struct pci_dev *pdev, pm_message_t state) { int retval; retval = __qlcnic_shutdown(pdev); if (retval) return retval; pci_set_power_state(pdev, pci_choose_state(pdev, state)); return 0; } static int qlcnic_resume(struct pci_dev *pdev) { struct qlcnic_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); err = adapter->nic_ops->start_firmware(adapter); if (err) { dev_err(&pdev->dev, "failed to start firmware\n"); return err; } if (netif_running(netdev)) { err = qlcnic_up(adapter, netdev); if (err) goto done; qlcnic_restore_indev_addr(netdev, NETDEV_UP); } done: netif_device_attach(netdev); qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY); return 0; } #endif static int qlcnic_open(struct net_device *netdev) { struct qlcnic_adapter *adapter = netdev_priv(netdev); int err; netif_carrier_off(netdev); err = qlcnic_attach(adapter); if (err) return err; err = __qlcnic_up(adapter, netdev); if (err) goto err_out; netif_start_queue(netdev); return 0; err_out: qlcnic_detach(adapter); return err; } /* * qlcnic_close - Disables a network interface entry point */ static int qlcnic_close(struct net_device *netdev) { struct qlcnic_adapter *adapter = netdev_priv(netdev); __qlcnic_down(adapter, netdev); return 0; } void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter) { void *head; int i; if (adapter->fhash.fmax && adapter->fhash.fhead) return; spin_lock_init(&adapter->mac_learn_lock); head = kcalloc(QLCNIC_LB_MAX_FILTERS, sizeof(struct hlist_head), GFP_KERNEL); if (!head) return; adapter->fhash.fmax = QLCNIC_LB_MAX_FILTERS; adapter->fhash.fhead = head; for (i = 0; i < adapter->fhash.fmax; i++) INIT_HLIST_HEAD(&adapter->fhash.fhead[i]); } static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter) { if (adapter->fhash.fmax && adapter->fhash.fhead) kfree(adapter->fhash.fhead); adapter->fhash.fhead = NULL; adapter->fhash.fmax = 0; } static void qlcnic_change_filter(struct qlcnic_adapter *adapter, u64 uaddr, __le16 vlan_id, struct qlcnic_host_tx_ring *tx_ring) { struct cmd_desc_type0 *hwdesc; struct qlcnic_nic_req *req; struct qlcnic_mac_req *mac_req; struct qlcnic_vlan_req *vlan_req; u32 producer; u64 word; producer = tx_ring->producer; hwdesc = &tx_ring->desc_head[tx_ring->producer]; req = (struct qlcnic_nic_req *)hwdesc; memset(req, 0, sizeof(struct qlcnic_nic_req)); req->qhdr = cpu_to_le64(QLCNIC_REQUEST << 23); word = QLCNIC_MAC_EVENT | ((u64)(adapter->portnum) << 16); req->req_hdr = cpu_to_le64(word); mac_req = (struct qlcnic_mac_req *)&(req->words[0]); mac_req->op = vlan_id ? QLCNIC_MAC_VLAN_ADD : QLCNIC_MAC_ADD; memcpy(mac_req->mac_addr, &uaddr, ETH_ALEN); vlan_req = (struct qlcnic_vlan_req *)&req->words[1]; vlan_req->vlan_id = vlan_id; tx_ring->producer = get_next_index(producer, tx_ring->num_desc); smp_mb(); } #define QLCNIC_MAC_HASH(MAC)\ ((((MAC) & 0x70000) >> 0x10) | (((MAC) & 0x70000000000ULL) >> 0x25)) static void qlcnic_send_filter(struct qlcnic_adapter *adapter, struct qlcnic_host_tx_ring *tx_ring, struct cmd_desc_type0 *first_desc, struct sk_buff *skb) { struct ethhdr *phdr = (struct ethhdr *)(skb->data); struct qlcnic_filter *fil, *tmp_fil; struct hlist_node *tmp_hnode, *n; struct hlist_head *head; u64 src_addr = 0; __le16 vlan_id = 0; u8 hindex; if (!compare_ether_addr(phdr->h_source, adapter->mac_addr)) return; if (adapter->fhash.fnum >= adapter->fhash.fmax) return; /* Only NPAR capable devices support vlan based learning*/ if (adapter->flags & QLCNIC_ESWITCH_ENABLED) vlan_id = first_desc->vlan_TCI; memcpy(&src_addr, phdr->h_source, ETH_ALEN); hindex = QLCNIC_MAC_HASH(src_addr) & (QLCNIC_LB_MAX_FILTERS - 1); head = &(adapter->fhash.fhead[hindex]); hlist_for_each_entry_safe(tmp_fil, tmp_hnode, n, head, fnode) { if (!memcmp(tmp_fil->faddr, &src_addr, ETH_ALEN) && tmp_fil->vlan_id == vlan_id) { if (jiffies > (QLCNIC_READD_AGE * HZ + tmp_fil->ftime)) qlcnic_change_filter(adapter, src_addr, vlan_id, tx_ring); tmp_fil->ftime = jiffies; return; } } fil = kzalloc(sizeof(struct qlcnic_filter), GFP_ATOMIC); if (!fil) return; qlcnic_change_filter(adapter, src_addr, vlan_id, tx_ring); fil->ftime = jiffies; fil->vlan_id = vlan_id; memcpy(fil->faddr, &src_addr, ETH_ALEN); spin_lock(&adapter->mac_learn_lock); hlist_add_head(&(fil->fnode), head); adapter->fhash.fnum++; spin_unlock(&adapter->mac_learn_lock); } static int qlcnic_tx_pkt(struct qlcnic_adapter *adapter, struct cmd_desc_type0 *first_desc, struct sk_buff *skb) { u8 opcode = 0, hdr_len = 0; u16 flags = 0, vlan_tci = 0; int copied, offset, copy_len; struct cmd_desc_type0 *hwdesc; struct vlan_ethhdr *vh; struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring; u16 protocol = ntohs(skb->protocol); u32 producer = tx_ring->producer; if (protocol == ETH_P_8021Q) { vh = (struct vlan_ethhdr *)skb->data; flags = FLAGS_VLAN_TAGGED; vlan_tci = vh->h_vlan_TCI; } else if (vlan_tx_tag_present(skb)) { flags = FLAGS_VLAN_OOB; vlan_tci = vlan_tx_tag_get(skb); } if (unlikely(adapter->pvid)) { if (vlan_tci && !(adapter->flags & QLCNIC_TAGGING_ENABLED)) return -EIO; if (vlan_tci && (adapter->flags & QLCNIC_TAGGING_ENABLED)) goto set_flags; flags = FLAGS_VLAN_OOB; vlan_tci = adapter->pvid; } set_flags: qlcnic_set_tx_vlan_tci(first_desc, vlan_tci); qlcnic_set_tx_flags_opcode(first_desc, flags, opcode); if (*(skb->data) & BIT_0) { flags |= BIT_0; memcpy(&first_desc->eth_addr, skb->data, ETH_ALEN); } opcode = TX_ETHER_PKT; if ((adapter->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; opcode = (protocol == ETH_P_IPV6) ? TX_TCP_LSO6 : TX_TCP_LSO; /* For LSO, we need to copy the MAC/IP/TCP headers into * the descriptor ring */ copied = 0; offset = 2; if (flags & FLAGS_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; /* 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(vlan_tci); 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; smp_mb(); adapter->stats.lso_frames++; } else if (skb->ip_summed == CHECKSUM_PARTIAL) { u8 l4proto; if (protocol == 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 == 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); qlcnic_set_tx_flags_opcode(first_desc, flags, opcode); return 0; } static int qlcnic_map_tx_skb(struct pci_dev *pdev, struct sk_buff *skb, struct qlcnic_cmd_buffer *pbuf) { struct qlcnic_skb_frag *nf; struct skb_frag_struct *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 = pci_map_page(pdev, frag->page, frag->page_offset, frag->size, PCI_DMA_TODEVICE); if (pci_dma_mapping_error(pdev, map)) goto unwind; nf->dma = map; nf->length = frag->size; } return 0; unwind: while (--i >= 0) { nf = &pbuf->frag_array[i+1]; pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE); } nf = &pbuf->frag_array[0]; pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE); out_err: return -ENOMEM; } static void qlcnic_unmap_buffers(struct pci_dev *pdev, struct sk_buff *skb, struct qlcnic_cmd_buffer *pbuf) { struct qlcnic_skb_frag *nf = &pbuf->frag_array[0]; int nr_frags = skb_shinfo(skb)->nr_frags; int i; for (i = 0; i < nr_frags; i++) { nf = &pbuf->frag_array[i+1]; pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE); } nf = &pbuf->frag_array[0]; pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE); pbuf->skb = NULL; } static inline void qlcnic_clear_cmddesc(u64 *desc) { desc[0] = 0ULL; desc[2] = 0ULL; desc[7] = 0ULL; } netdev_tx_t qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) { struct qlcnic_adapter *adapter = netdev_priv(netdev); struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring; struct qlcnic_cmd_buffer *pbuf; struct qlcnic_skb_frag *buffrag; struct cmd_desc_type0 *hwdesc, *first_desc; struct pci_dev *pdev; struct ethhdr *phdr; int delta = 0; int i, k; u32 producer; int frag_count; u32 num_txd = tx_ring->num_desc; if (!test_bit(__QLCNIC_DEV_UP, &adapter->state)) { netif_stop_queue(netdev); return NETDEV_TX_BUSY; } if (adapter->flags & QLCNIC_MACSPOOF) { phdr = (struct ethhdr *)skb->data; if (compare_ether_addr(phdr->h_source, adapter->mac_addr)) goto drop_packet; } 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 > QLCNIC_MAX_FRAGS_PER_TX) { for (i = 0; i < (frag_count - QLCNIC_MAX_FRAGS_PER_TX); i++) delta += skb_shinfo(skb)->frags[i].size; if (!__pskb_pull_tail(skb, delta)) goto drop_packet; frag_count = 1 + skb_shinfo(skb)->nr_frags; } if (unlikely(qlcnic_tx_avail(tx_ring) <= TX_STOP_THRESH)) { netif_stop_queue(netdev); if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) netif_start_queue(netdev); else { adapter->stats.xmit_off++; return NETDEV_TX_BUSY; } } producer = tx_ring->producer; pbuf = &tx_ring->cmd_buf_arr[producer]; pdev = adapter->pdev; first_desc = hwdesc = &tx_ring->desc_head[producer]; qlcnic_clear_cmddesc((u64 *)hwdesc); if (qlcnic_map_tx_skb(pdev, skb, pbuf)) { adapter->stats.tx_dma_map_error++; goto drop_packet; } pbuf->skb = skb; pbuf->frag_count = frag_count; qlcnic_set_tx_frags_len(first_desc, frag_count, skb->len); qlcnic_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]; qlcnic_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); smp_mb(); if (unlikely(qlcnic_tx_pkt(adapter, first_desc, skb))) goto unwind_buff; if (adapter->mac_learn) qlcnic_send_filter(adapter, tx_ring, first_desc, skb); adapter->stats.txbytes += skb->len; adapter->stats.xmitcalled++; qlcnic_update_cmd_producer(adapter, tx_ring); return NETDEV_TX_OK; unwind_buff: qlcnic_unmap_buffers(pdev, skb, pbuf); drop_packet: adapter->stats.txdropped++; dev_kfree_skb_any(skb); return NETDEV_TX_OK; } static int qlcnic_check_temp(struct qlcnic_adapter *adapter) { struct net_device *netdev = adapter->netdev; u32 temp, temp_state, temp_val; int rv = 0; temp = QLCRD32(adapter, CRB_TEMP_STATE); temp_state = qlcnic_get_temp_state(temp); temp_val = qlcnic_get_temp_val(temp); if (temp_state == QLCNIC_TEMP_PANIC) { dev_err(&netdev->dev, "Device temperature %d degrees C exceeds" " maximum allowed. Hardware has been shut down.\n", temp_val); rv = 1; } else if (temp_state == QLCNIC_TEMP_WARN) { if (adapter->temp == QLCNIC_TEMP_NORMAL) { dev_err(&netdev->dev, "Device temperature %d degrees C " "exceeds operating range." " Immediate action needed.\n", temp_val); } } else { if (adapter->temp == QLCNIC_TEMP_WARN) { dev_info(&netdev->dev, "Device temperature is now %d degrees C" " in normal range.\n", temp_val); } } adapter->temp = temp_state; return rv; } void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup) { struct net_device *netdev = adapter->netdev; if (adapter->ahw->linkup && !linkup) { netdev_info(netdev, "NIC Link is down\n"); adapter->ahw->linkup = 0; if (netif_running(netdev)) { netif_carrier_off(netdev); netif_stop_queue(netdev); } } else if (!adapter->ahw->linkup && linkup) { netdev_info(netdev, "NIC Link is up\n"); adapter->ahw->linkup = 1; if (netif_running(netdev)) { netif_carrier_on(netdev); netif_wake_queue(netdev); } } } static void qlcnic_tx_timeout(struct net_device *netdev) { struct qlcnic_adapter *adapter = netdev_priv(netdev); if (test_bit(__QLCNIC_RESETTING, &adapter->state)) return; dev_err(&netdev->dev, "transmit timeout, resetting.\n"); if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS) adapter->need_fw_reset = 1; else adapter->reset_context = 1; } static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev) { struct qlcnic_adapter *adapter = netdev_priv(netdev); struct net_device_stats *stats = &netdev->stats; stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts; stats->tx_packets = adapter->stats.xmitfinished; stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes; stats->tx_bytes = adapter->stats.txbytes; stats->rx_dropped = adapter->stats.rxdropped; stats->tx_dropped = adapter->stats.txdropped; return stats; } static irqreturn_t qlcnic_clear_legacy_intr(struct qlcnic_adapter *adapter) { u32 status; status = readl(adapter->isr_int_vec); if (!(status & adapter->int_vec_bit)) return IRQ_NONE; /* check interrupt state machine, to be sure */ status = readl(adapter->crb_int_state_reg); if (!ISR_LEGACY_INT_TRIGGERED(status)) return IRQ_NONE; writel(0xffffffff, adapter->tgt_status_reg); /* read twice to ensure write is flushed */ readl(adapter->isr_int_vec); readl(adapter->isr_int_vec); return IRQ_HANDLED; } static irqreturn_t qlcnic_tmp_intr(int irq, void *data) { struct qlcnic_host_sds_ring *sds_ring = data; struct qlcnic_adapter *adapter = sds_ring->adapter; if (adapter->flags & QLCNIC_MSIX_ENABLED) goto done; else if (adapter->flags & QLCNIC_MSI_ENABLED) { writel(0xffffffff, adapter->tgt_status_reg); goto done; } if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE) return IRQ_NONE; done: adapter->diag_cnt++; qlcnic_enable_int(sds_ring); return IRQ_HANDLED; } static irqreturn_t qlcnic_intr(int irq, void *data) { struct qlcnic_host_sds_ring *sds_ring = data; struct qlcnic_adapter *adapter = sds_ring->adapter; if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE) return IRQ_NONE; napi_schedule(&sds_ring->napi); return IRQ_HANDLED; } static irqreturn_t qlcnic_msi_intr(int irq, void *data) { struct qlcnic_host_sds_ring *sds_ring = data; struct qlcnic_adapter *adapter = sds_ring->adapter; /* clear interrupt */ writel(0xffffffff, adapter->tgt_status_reg); napi_schedule(&sds_ring->napi); return IRQ_HANDLED; } static irqreturn_t qlcnic_msix_intr(int irq, void *data) { struct qlcnic_host_sds_ring *sds_ring = data; napi_schedule(&sds_ring->napi); return IRQ_HANDLED; } static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter) { u32 sw_consumer, hw_consumer; int count = 0, i; struct qlcnic_cmd_buffer *buffer; struct pci_dev *pdev = adapter->pdev; struct net_device *netdev = adapter->netdev; struct qlcnic_skb_frag *frag; int done; struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring; if (!spin_trylock(&adapter->tx_clean_lock)) return 1; sw_consumer = tx_ring->sw_consumer; hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer)); while (sw_consumer != hw_consumer) { buffer = &tx_ring->cmd_buf_arr[sw_consumer]; if (buffer->skb) { frag = &buffer->frag_array[0]; pci_unmap_single(pdev, frag->dma, frag->length, PCI_DMA_TODEVICE); frag->dma = 0ULL; for (i = 1; i < buffer->frag_count; i++) { frag++; pci_unmap_page(pdev, frag->dma, frag->length, PCI_DMA_TODEVICE); frag->dma = 0ULL; } adapter->stats.xmitfinished++; dev_kfree_skb_any(buffer->skb); buffer->skb = NULL; } sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc); if (++count >= MAX_STATUS_HANDLE) break; } if (count && netif_running(netdev)) { tx_ring->sw_consumer = sw_consumer; smp_mb(); if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) { if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) { netif_wake_queue(netdev); adapter->stats.xmit_on++; } } adapter->tx_timeo_cnt = 0; } /* * If everything is freed up to consumer then check if the ring is full * If the ring is full then check if more needs to be freed and * schedule the call back again. * * This happens when there are 2 CPUs. One could be freeing and the * other filling it. If the ring is full when we get out of here and * the card has already interrupted the host then the host can miss the * interrupt. * * There is still a possible race condition and the host could miss an * interrupt. The card has to take care of this. */ hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer)); done = (sw_consumer == hw_consumer); spin_unlock(&adapter->tx_clean_lock); return done; } static int qlcnic_poll(struct napi_struct *napi, int budget) { struct qlcnic_host_sds_ring *sds_ring = container_of(napi, struct qlcnic_host_sds_ring, napi); struct qlcnic_adapter *adapter = sds_ring->adapter; int tx_complete; int work_done; tx_complete = qlcnic_process_cmd_ring(adapter); work_done = qlcnic_process_rcv_ring(sds_ring, budget); if ((work_done < budget) && tx_complete) { napi_complete(&sds_ring->napi); if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) qlcnic_enable_int(sds_ring); } return work_done; } static int qlcnic_rx_poll(struct napi_struct *napi, int budget) { struct qlcnic_host_sds_ring *sds_ring = container_of(napi, struct qlcnic_host_sds_ring, napi); struct qlcnic_adapter *adapter = sds_ring->adapter; int work_done; work_done = qlcnic_process_rcv_ring(sds_ring, budget); if (work_done < budget) { napi_complete(&sds_ring->napi); if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) qlcnic_enable_int(sds_ring); } return work_done; } #ifdef CONFIG_NET_POLL_CONTROLLER static void qlcnic_poll_controller(struct net_device *netdev) { int ring; struct qlcnic_host_sds_ring *sds_ring; struct qlcnic_adapter *adapter = netdev_priv(netdev); struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx; disable_irq(adapter->irq); for (ring = 0; ring < adapter->max_sds_rings; ring++) { sds_ring = &recv_ctx->sds_rings[ring]; qlcnic_intr(adapter->irq, sds_ring); } enable_irq(adapter->irq); } #endif static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding) { u32 val; val = adapter->portnum & 0xf; val |= encoding << 7; val |= (jiffies - adapter->dev_rst_time) << 8; QLCWR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val); adapter->dev_rst_time = jiffies; } static int qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state) { u32 val; WARN_ON(state != QLCNIC_DEV_NEED_RESET && state != QLCNIC_DEV_NEED_QUISCENT); if (qlcnic_api_lock(adapter)) return -EIO; val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); if (state == QLCNIC_DEV_NEED_RESET) QLC_DEV_SET_RST_RDY(val, adapter->portnum); else if (state == QLCNIC_DEV_NEED_QUISCENT) QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum); QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); qlcnic_api_unlock(adapter); return 0; } static int qlcnic_clr_drv_state(struct qlcnic_adapter *adapter) { u32 val; if (qlcnic_api_lock(adapter)) return -EBUSY; val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum); QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); qlcnic_api_unlock(adapter); return 0; } static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed) { u32 val; if (qlcnic_api_lock(adapter)) goto err; val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE); QLC_DEV_CLR_REF_CNT(val, adapter->portnum); QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val); if (failed) { QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED); dev_info(&adapter->pdev->dev, "Device state set to Failed. Please Reboot\n"); } else if (!(val & 0x11111111)) QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_COLD); val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum); QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); qlcnic_api_unlock(adapter); err: adapter->fw_fail_cnt = 0; clear_bit(__QLCNIC_START_FW, &adapter->state); clear_bit(__QLCNIC_RESETTING, &adapter->state); } /* Grab api lock, before checking state */ static int qlcnic_check_drv_state(struct qlcnic_adapter *adapter) { int act, state, active_mask; state = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); act = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE); if (adapter->flags & QLCNIC_FW_RESET_OWNER) { active_mask = (~(1 << (adapter->ahw->pci_func * 4))); act = act & active_mask; } if (((state & 0x11111111) == (act & 0x11111111)) || ((act & 0x11111111) == ((state >> 1) & 0x11111111))) return 0; else return 1; } static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter) { u32 val = QLCRD32(adapter, QLCNIC_CRB_DRV_IDC_VER); if (val != QLCNIC_DRV_IDC_VER) { dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's" " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val); } return 0; } static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter) { u32 val, prev_state; u8 dev_init_timeo = adapter->dev_init_timeo; u8 portnum = adapter->portnum; u8 ret; if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state)) return 1; if (qlcnic_api_lock(adapter)) return -1; val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE); if (!(val & (1 << (portnum * 4)))) { QLC_DEV_SET_REF_CNT(val, portnum); QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val); } prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); QLCDB(adapter, HW, "Device state = %u\n", prev_state); switch (prev_state) { case QLCNIC_DEV_COLD: QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING); QLCWR32(adapter, QLCNIC_CRB_DRV_IDC_VER, QLCNIC_DRV_IDC_VER); qlcnic_idc_debug_info(adapter, 0); qlcnic_api_unlock(adapter); return 1; case QLCNIC_DEV_READY: ret = qlcnic_check_idc_ver(adapter); qlcnic_api_unlock(adapter); return ret; case QLCNIC_DEV_NEED_RESET: val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); QLC_DEV_SET_RST_RDY(val, portnum); QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); break; case QLCNIC_DEV_NEED_QUISCENT: val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); QLC_DEV_SET_QSCNT_RDY(val, portnum); QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); break; case QLCNIC_DEV_FAILED: dev_err(&adapter->pdev->dev, "Device in failed state.\n"); qlcnic_api_unlock(adapter); return -1; case QLCNIC_DEV_INITIALIZING: case QLCNIC_DEV_QUISCENT: break; } qlcnic_api_unlock(adapter); do { msleep(1000); prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); if (prev_state == QLCNIC_DEV_QUISCENT) continue; } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo); if (!dev_init_timeo) { dev_err(&adapter->pdev->dev, "Waiting for device to initialize timeout\n"); return -1; } if (qlcnic_api_lock(adapter)) return -1; val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); QLC_DEV_CLR_RST_QSCNT(val, portnum); QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); ret = qlcnic_check_idc_ver(adapter); qlcnic_api_unlock(adapter); return ret; } static void qlcnic_fwinit_work(struct work_struct *work) { struct qlcnic_adapter *adapter = container_of(work, struct qlcnic_adapter, fw_work.work); u32 dev_state = 0xf; u32 val; if (qlcnic_api_lock(adapter)) goto err_ret; dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); if (dev_state == QLCNIC_DEV_QUISCENT || dev_state == QLCNIC_DEV_NEED_QUISCENT) { qlcnic_api_unlock(adapter); qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY * 2); return; } if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC) { qlcnic_api_unlock(adapter); goto wait_npar; } if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) { dev_err(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n", adapter->reset_ack_timeo); goto skip_ack_check; } if (!qlcnic_check_drv_state(adapter)) { skip_ack_check: dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); if (dev_state == QLCNIC_DEV_NEED_RESET) { QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING); set_bit(__QLCNIC_START_FW, &adapter->state); QLCDB(adapter, DRV, "Restarting fw\n"); qlcnic_idc_debug_info(adapter, 0); val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); QLC_DEV_SET_RST_RDY(val, adapter->portnum); QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); } qlcnic_api_unlock(adapter); rtnl_lock(); if (adapter->ahw->fw_dump.enable && (adapter->flags & QLCNIC_FW_RESET_OWNER)) { QLCDB(adapter, DRV, "Take FW dump\n"); qlcnic_dump_fw(adapter); } rtnl_unlock(); adapter->flags &= ~QLCNIC_FW_RESET_OWNER; if (!adapter->nic_ops->start_firmware(adapter)) { qlcnic_schedule_work(adapter, qlcnic_attach_work, 0); adapter->fw_wait_cnt = 0; return; } goto err_ret; } qlcnic_api_unlock(adapter); wait_npar: dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state); switch (dev_state) { case QLCNIC_DEV_READY: if (!adapter->nic_ops->start_firmware(adapter)) { qlcnic_schedule_work(adapter, qlcnic_attach_work, 0); adapter->fw_wait_cnt = 0; return; } case QLCNIC_DEV_FAILED: break; default: qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY); return; } err_ret: dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u " "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt); netif_device_attach(adapter->netdev); qlcnic_clr_all_drv_state(adapter, 0); } static void qlcnic_detach_work(struct work_struct *work) { struct qlcnic_adapter *adapter = container_of(work, struct qlcnic_adapter, fw_work.work); struct net_device *netdev = adapter->netdev; u32 status; netif_device_detach(netdev); /* Dont grab rtnl lock during Quiscent mode */ if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) { if (netif_running(netdev)) __qlcnic_down(adapter, netdev); } else qlcnic_down(adapter, netdev); status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1); if (status & QLCNIC_RCODE_FATAL_ERROR) goto err_ret; if (adapter->temp == QLCNIC_TEMP_PANIC) goto err_ret; /* Dont ack if this instance is the reset owner */ if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) { if (qlcnic_set_drv_state(adapter, adapter->dev_state)) goto err_ret; } adapter->fw_wait_cnt = 0; qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY); return; err_ret: dev_err(&adapter->pdev->dev, "detach failed; status=%d temp=%d\n", status, adapter->temp); netif_device_attach(netdev); qlcnic_clr_all_drv_state(adapter, 1); } /*Transit NPAR state to NON Operational */ static void qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter) { u32 state; state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE); if (state == QLCNIC_DEV_NPAR_NON_OPER) return; if (qlcnic_api_lock(adapter)) return; QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER); qlcnic_api_unlock(adapter); } /*Transit to RESET state from READY state only */ void qlcnic_dev_request_reset(struct qlcnic_adapter *adapter) { u32 state; adapter->need_fw_reset = 1; if (qlcnic_api_lock(adapter)) return; state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); if (state == QLCNIC_DEV_READY) { QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_NEED_RESET); adapter->flags |= QLCNIC_FW_RESET_OWNER; QLCDB(adapter, DRV, "NEED_RESET state set\n"); qlcnic_idc_debug_info(adapter, 0); } QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER); qlcnic_api_unlock(adapter); } /* Transit to NPAR READY state from NPAR NOT READY state */ static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter) { if (qlcnic_api_lock(adapter)) return; QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_OPER); QLCDB(adapter, DRV, "NPAR operational state set\n"); qlcnic_api_unlock(adapter); } static void qlcnic_schedule_work(struct qlcnic_adapter *adapter, work_func_t func, int delay) { if (test_bit(__QLCNIC_AER, &adapter->state)) return; INIT_DELAYED_WORK(&adapter->fw_work, func); queue_delayed_work(qlcnic_wq, &adapter->fw_work, round_jiffies_relative(delay)); } static void qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter) { while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) msleep(10); cancel_delayed_work_sync(&adapter->fw_work); } static void qlcnic_attach_work(struct work_struct *work) { struct qlcnic_adapter *adapter = container_of(work, struct qlcnic_adapter, fw_work.work); struct net_device *netdev = adapter->netdev; u32 npar_state; if (adapter->op_mode != QLCNIC_MGMT_FUNC) { npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE); if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO) qlcnic_clr_all_drv_state(adapter, 0); else if (npar_state != QLCNIC_DEV_NPAR_OPER) qlcnic_schedule_work(adapter, qlcnic_attach_work, FW_POLL_DELAY); else goto attach; QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n"); return; } attach: if (netif_running(netdev)) { if (qlcnic_up(adapter, netdev)) goto done; qlcnic_restore_indev_addr(netdev, NETDEV_UP); } done: netif_device_attach(netdev); adapter->fw_fail_cnt = 0; clear_bit(__QLCNIC_RESETTING, &adapter->state); if (!qlcnic_clr_drv_state(adapter)) qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY); } static int qlcnic_check_health(struct qlcnic_adapter *adapter) { u32 state = 0, heartbeat; struct net_device *netdev = adapter->netdev; if (qlcnic_check_temp(adapter)) goto detach; if (adapter->need_fw_reset) qlcnic_dev_request_reset(adapter); state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); if (state == QLCNIC_DEV_NEED_RESET) { qlcnic_set_npar_non_operational(adapter); adapter->need_fw_reset = 1; } else if (state == QLCNIC_DEV_NEED_QUISCENT) goto detach; heartbeat = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER); if (heartbeat != adapter->heartbeat) { adapter->heartbeat = heartbeat; adapter->fw_fail_cnt = 0; if (adapter->need_fw_reset) goto detach; if (adapter->reset_context && auto_fw_reset) { qlcnic_reset_hw_context(adapter); adapter->netdev->trans_start = jiffies; } return 0; } if (++adapter->fw_fail_cnt < FW_FAIL_THRESH) return 0; qlcnic_dev_request_reset(adapter); if (auto_fw_reset) clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state); dev_info(&netdev->dev, "firmware hang detected\n"); detach: adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state : QLCNIC_DEV_NEED_RESET; if (auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) { qlcnic_schedule_work(adapter, qlcnic_detach_work, 0); QLCDB(adapter, DRV, "fw recovery scheduled.\n"); } return 1; } static void qlcnic_fw_poll_work(struct work_struct *work) { struct qlcnic_adapter *adapter = container_of(work, struct qlcnic_adapter, fw_work.work); if (test_bit(__QLCNIC_RESETTING, &adapter->state)) goto reschedule; if (qlcnic_check_health(adapter)) return; if (adapter->fhash.fnum) qlcnic_prune_lb_filters(adapter); reschedule: qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY); } static int qlcnic_is_first_func(struct pci_dev *pdev) { struct pci_dev *oth_pdev; int val = pdev->devfn; while (val-- > 0) { oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr (pdev->bus), pdev->bus->number, PCI_DEVFN(PCI_SLOT(pdev->devfn), val)); if (!oth_pdev) continue; if (oth_pdev->current_state != PCI_D3cold) { pci_dev_put(oth_pdev); return 0; } pci_dev_put(oth_pdev); } return 1; } static int qlcnic_attach_func(struct pci_dev *pdev) { int err, first_func; struct qlcnic_adapter *adapter = pci_get_drvdata(pdev); struct net_device *netdev = adapter->netdev; pdev->error_state = pci_channel_io_normal; err = pci_enable_device(pdev); if (err) return err; pci_set_power_state(pdev, PCI_D0); pci_set_master(pdev); pci_restore_state(pdev); first_func = qlcnic_is_first_func(pdev); if (qlcnic_api_lock(adapter)) return -EINVAL; if (adapter->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) { adapter->need_fw_reset = 1; set_bit(__QLCNIC_START_FW, &adapter->state); QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING); QLCDB(adapter, DRV, "Restarting fw\n"); } qlcnic_api_unlock(adapter); err = adapter->nic_ops->start_firmware(adapter); if (err) return err; qlcnic_clr_drv_state(adapter); qlcnic_setup_intr(adapter); if (netif_running(netdev)) { err = qlcnic_attach(adapter); if (err) { qlcnic_clr_all_drv_state(adapter, 1); clear_bit(__QLCNIC_AER, &adapter->state); netif_device_attach(netdev); return err; } err = qlcnic_up(adapter, netdev); if (err) goto done; qlcnic_restore_indev_addr(netdev, NETDEV_UP); } done: netif_device_attach(netdev); return err; } static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) { struct qlcnic_adapter *adapter = pci_get_drvdata(pdev); struct net_device *netdev = adapter->netdev; if (state == pci_channel_io_perm_failure) return PCI_ERS_RESULT_DISCONNECT; if (state == pci_channel_io_normal) return PCI_ERS_RESULT_RECOVERED; set_bit(__QLCNIC_AER, &adapter->state); netif_device_detach(netdev); cancel_delayed_work_sync(&adapter->fw_work); if (netif_running(netdev)) qlcnic_down(adapter, netdev); qlcnic_detach(adapter); qlcnic_teardown_intr(adapter); clear_bit(__QLCNIC_RESETTING, &adapter->state); pci_save_state(pdev); pci_disable_device(pdev); return PCI_ERS_RESULT_NEED_RESET; } static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev) { return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED; } static void qlcnic_io_resume(struct pci_dev *pdev) { struct qlcnic_adapter *adapter = pci_get_drvdata(pdev); pci_cleanup_aer_uncorrect_error_status(pdev); if (QLCRD32(adapter, QLCNIC_CRB_DEV_STATE) == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER, &adapter->state)) qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY); } static int qlcnicvf_start_firmware(struct qlcnic_adapter *adapter) { int err; err = qlcnic_can_start_firmware(adapter); if (err) return err; err = qlcnic_check_npar_opertional(adapter); if (err) return err; err = qlcnic_initialize_nic(adapter); if (err) return err; qlcnic_check_options(adapter); err = qlcnic_set_eswitch_port_config(adapter); if (err) return err; adapter->need_fw_reset = 0; return err; } static int qlcnicvf_config_bridged_mode(struct qlcnic_adapter *adapter, u32 enable) { return -EOPNOTSUPP; } static int qlcnicvf_config_led(struct qlcnic_adapter *adapter, u32 state, u32 rate) { return -EOPNOTSUPP; } static ssize_t qlcnic_store_bridged_mode(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct qlcnic_adapter *adapter = dev_get_drvdata(dev); unsigned long new; int ret = -EINVAL; if (!(adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)) goto err_out; if (!test_bit(__QLCNIC_DEV_UP, &adapter->state)) goto err_out; if (strict_strtoul(buf, 2, &new)) goto err_out; if (!adapter->nic_ops->config_bridged_mode(adapter, !!new)) ret = len; err_out: return ret; } static ssize_t qlcnic_show_bridged_mode(struct device *dev, struct device_attribute *attr, char *buf) { struct qlcnic_adapter *adapter = dev_get_drvdata(dev); int bridged_mode = 0; if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG) bridged_mode = !!(adapter->flags & QLCNIC_BRIDGE_ENABLED); return sprintf(buf, "%d\n", bridged_mode); } static struct device_attribute dev_attr_bridged_mode = { .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)}, .show = qlcnic_show_bridged_mode, .store = qlcnic_store_bridged_mode, }; static ssize_t qlcnic_store_diag_mode(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct qlcnic_adapter *adapter = dev_get_drvdata(dev); unsigned long new; if (strict_strtoul(buf, 2, &new)) return -EINVAL; if (!!new != !!(adapter->flags & QLCNIC_DIAG_ENABLED)) adapter->flags ^= QLCNIC_DIAG_ENABLED; return len; } static ssize_t qlcnic_show_diag_mode(struct device *dev, struct device_attribute *attr, char *buf) { struct qlcnic_adapter *adapter = dev_get_drvdata(dev); return sprintf(buf, "%d\n", !!(adapter->flags & QLCNIC_DIAG_ENABLED)); } static struct device_attribute dev_attr_diag_mode = { .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)}, .show = qlcnic_show_diag_mode, .store = qlcnic_store_diag_mode, }; int qlcnic_validate_max_rss(struct net_device *netdev, u8 max_hw, u8 val) { if (!use_msi_x && !use_msi) { netdev_info(netdev, "no msix or msi support, hence no rss\n"); return -EINVAL; } if ((val > max_hw) || (val < 2) || !is_power_of_2(val)) { netdev_info(netdev, "rss_ring valid range [2 - %x] in " " powers of 2\n", max_hw); return -EINVAL; } return 0; } int qlcnic_set_max_rss(struct qlcnic_adapter *adapter, u8 data) { struct net_device *netdev = adapter->netdev; int err = 0; if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) return -EBUSY; netif_device_detach(netdev); if (netif_running(netdev)) __qlcnic_down(adapter, netdev); qlcnic_detach(adapter); qlcnic_teardown_intr(adapter); if (qlcnic_enable_msix(adapter, data)) { netdev_info(netdev, "failed setting max_rss; rss disabled\n"); qlcnic_enable_msi_legacy(adapter); } if (netif_running(netdev)) { err = qlcnic_attach(adapter); if (err) goto done; err = __qlcnic_up(adapter, netdev); if (err) goto done; qlcnic_restore_indev_addr(netdev, NETDEV_UP); } done: netif_device_attach(netdev); clear_bit(__QLCNIC_RESETTING, &adapter->state); return err; } static int qlcnic_sysfs_validate_crb(struct qlcnic_adapter *adapter, loff_t offset, size_t size) { size_t crb_size = 4; if (!(adapter->flags & QLCNIC_DIAG_ENABLED)) return -EIO; if (offset < QLCNIC_PCI_CRBSPACE) { if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) crb_size = 8; else return -EINVAL; } if ((size != crb_size) || (offset & (crb_size-1))) return -EINVAL; return 0; } static ssize_t qlcnic_sysfs_read_crb(struct file *filp, struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t offset, size_t size) { struct device *dev = container_of(kobj, struct device, kobj); struct qlcnic_adapter *adapter = dev_get_drvdata(dev); u32 data; u64 qmdata; int ret; ret = qlcnic_sysfs_validate_crb(adapter, offset, size); if (ret != 0) return ret; if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) { qlcnic_pci_camqm_read_2M(adapter, offset, &qmdata); memcpy(buf, &qmdata, size); } else { data = QLCRD32(adapter, offset); memcpy(buf, &data, size); } return size; } static ssize_t qlcnic_sysfs_write_crb(struct file *filp, struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t offset, size_t size) { struct device *dev = container_of(kobj, struct device, kobj); struct qlcnic_adapter *adapter = dev_get_drvdata(dev); u32 data; u64 qmdata; int ret; ret = qlcnic_sysfs_validate_crb(adapter, offset, size); if (ret != 0) return ret; if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) { memcpy(&qmdata, buf, size); qlcnic_pci_camqm_write_2M(adapter, offset, qmdata); } else { memcpy(&data, buf, size); QLCWR32(adapter, offset, data); } return size; } static int qlcnic_sysfs_validate_mem(struct qlcnic_adapter *adapter, loff_t offset, size_t size) { if (!(adapter->flags & QLCNIC_DIAG_ENABLED)) return -EIO; if ((size != 8) || (offset & 0x7)) return -EIO; return 0; } static ssize_t qlcnic_sysfs_read_mem(struct file *filp, struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t offset, size_t size) { struct device *dev = container_of(kobj, struct device, kobj); struct qlcnic_adapter *adapter = dev_get_drvdata(dev); u64 data; int ret; ret = qlcnic_sysfs_validate_mem(adapter, offset, size); if (ret != 0) return ret; if (qlcnic_pci_mem_read_2M(adapter, offset, &data)) return -EIO; memcpy(buf, &data, size); return size; } static ssize_t qlcnic_sysfs_write_mem(struct file *filp, struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t offset, size_t size) { struct device *dev = container_of(kobj, struct device, kobj); struct qlcnic_adapter *adapter = dev_get_drvdata(dev); u64 data; int ret; ret = qlcnic_sysfs_validate_mem(adapter, offset, size); if (ret != 0) return ret; memcpy(&data, buf, size); if (qlcnic_pci_mem_write_2M(adapter, offset, data)) return -EIO; return size; } static struct bin_attribute bin_attr_crb = { .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)}, .size = 0, .read = qlcnic_sysfs_read_crb, .write = qlcnic_sysfs_write_crb, }; static struct bin_attribute bin_attr_mem = { .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)}, .size = 0, .read = qlcnic_sysfs_read_mem, .write = qlcnic_sysfs_write_mem, }; static int validate_pm_config(struct qlcnic_adapter *adapter, struct qlcnic_pm_func_cfg *pm_cfg, int count) { u8 src_pci_func, s_esw_id, d_esw_id; u8 dest_pci_func; int i; for (i = 0; i < count; i++) { src_pci_func = pm_cfg[i].pci_func; dest_pci_func = pm_cfg[i].dest_npar; if (src_pci_func >= QLCNIC_MAX_PCI_FUNC || dest_pci_func >= QLCNIC_MAX_PCI_FUNC) return QL_STATUS_INVALID_PARAM; if (adapter->npars[src_pci_func].type != QLCNIC_TYPE_NIC) return QL_STATUS_INVALID_PARAM; if (adapter->npars[dest_pci_func].type != QLCNIC_TYPE_NIC) return QL_STATUS_INVALID_PARAM; s_esw_id = adapter->npars[src_pci_func].phy_port; d_esw_id = adapter->npars[dest_pci_func].phy_port; if (s_esw_id != d_esw_id) return QL_STATUS_INVALID_PARAM; } return 0; } static ssize_t qlcnic_sysfs_write_pm_config(struct file *filp, struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t offset, size_t size) { struct device *dev = container_of(kobj, struct device, kobj); struct qlcnic_adapter *adapter = dev_get_drvdata(dev); struct qlcnic_pm_func_cfg *pm_cfg; u32 id, action, pci_func; int count, rem, i, ret; count = size / sizeof(struct qlcnic_pm_func_cfg); rem = size % sizeof(struct qlcnic_pm_func_cfg); if (rem) return QL_STATUS_INVALID_PARAM; pm_cfg = (struct qlcnic_pm_func_cfg *) buf; ret = validate_pm_config(adapter, pm_cfg, count); if (ret) return ret; for (i = 0; i < count; i++) { pci_func = pm_cfg[i].pci_func; action = !!pm_cfg[i].action; id = adapter->npars[pci_func].phy_port; ret = qlcnic_config_port_mirroring(adapter, id, action, pci_func); if (ret) return ret; } for (i = 0; i < count; i++) { pci_func = pm_cfg[i].pci_func; id = adapter->npars[pci_func].phy_port; adapter->npars[pci_func].enable_pm = !!pm_cfg[i].action; adapter->npars[pci_func].dest_npar = id; } return size; } static ssize_t qlcnic_sysfs_read_pm_config(struct file *filp, struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t offset, size_t size) { struct device *dev = container_of(kobj, struct device, kobj); struct qlcnic_adapter *adapter = dev_get_drvdata(dev); struct qlcnic_pm_func_cfg pm_cfg[QLCNIC_MAX_PCI_FUNC]; int i; if (size != sizeof(pm_cfg)) return QL_STATUS_INVALID_PARAM; for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) { if (adapter->npars[i].type != QLCNIC_TYPE_NIC) continue; pm_cfg[i].action = adapter->npars[i].enable_pm; pm_cfg[i].dest_npar = 0; pm_cfg[i].pci_func = i; } memcpy(buf, &pm_cfg, size); return size; } static int validate_esw_config(struct qlcnic_adapter *adapter, struct qlcnic_esw_func_cfg *esw_cfg, int count) { u32 op_mode; u8 pci_func; int i; op_mode = readl(adapter->ahw->pci_base0 + QLCNIC_DRV_OP_MODE); for (i = 0; i < count; i++) { pci_func = esw_cfg[i].pci_func; if (pci_func >= QLCNIC_MAX_PCI_FUNC) return QL_STATUS_INVALID_PARAM; if (adapter->op_mode == QLCNIC_MGMT_FUNC) if (adapter->npars[pci_func].type != QLCNIC_TYPE_NIC) return QL_STATUS_INVALID_PARAM; switch (esw_cfg[i].op_mode) { case QLCNIC_PORT_DEFAULTS: if (QLC_DEV_GET_DRV(op_mode, pci_func) != QLCNIC_NON_PRIV_FUNC) { if (esw_cfg[i].mac_anti_spoof != 0) return QL_STATUS_INVALID_PARAM; if (esw_cfg[i].mac_override != 1) return QL_STATUS_INVALID_PARAM; if (esw_cfg[i].promisc_mode != 1) return QL_STATUS_INVALID_PARAM; } break; case QLCNIC_ADD_VLAN: if (!IS_VALID_VLAN(esw_cfg[i].vlan_id)) return QL_STATUS_INVALID_PARAM; if (!esw_cfg[i].op_type) return QL_STATUS_INVALID_PARAM; break; case QLCNIC_DEL_VLAN: if (!esw_cfg[i].op_type) return QL_STATUS_INVALID_PARAM; break; default: return QL_STATUS_INVALID_PARAM; } } return 0; } static ssize_t qlcnic_sysfs_write_esw_config(struct file *file, struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t offset, size_t size) { struct device *dev = container_of(kobj, struct device, kobj); struct qlcnic_adapter *adapter = dev_get_drvdata(dev); struct qlcnic_esw_func_cfg *esw_cfg; struct qlcnic_npar_info *npar; int count, rem, i, ret; u8 pci_func, op_mode = 0; count = size / sizeof(struct qlcnic_esw_func_cfg); rem = size % sizeof(struct qlcnic_esw_func_cfg); if (rem) return QL_STATUS_INVALID_PARAM; esw_cfg = (struct qlcnic_esw_func_cfg *) buf; ret = validate_esw_config(adapter, esw_cfg, count); if (ret) return ret; for (i = 0; i < count; i++) { if (adapter->op_mode == QLCNIC_MGMT_FUNC) if (qlcnic_config_switch_port(adapter, &esw_cfg[i])) return QL_STATUS_INVALID_PARAM; if (adapter->ahw->pci_func != esw_cfg[i].pci_func) continue; op_mode = esw_cfg[i].op_mode; qlcnic_get_eswitch_port_config(adapter, &esw_cfg[i]); esw_cfg[i].op_mode = op_mode; esw_cfg[i].pci_func = adapter->ahw->pci_func; switch (esw_cfg[i].op_mode) { case QLCNIC_PORT_DEFAULTS: qlcnic_set_eswitch_port_features(adapter, &esw_cfg[i]); break; case QLCNIC_ADD_VLAN: qlcnic_set_vlan_config(adapter, &esw_cfg[i]); break; case QLCNIC_DEL_VLAN: esw_cfg[i].vlan_id = 0; qlcnic_set_vlan_config(adapter, &esw_cfg[i]); break; } } if (adapter->op_mode != QLCNIC_MGMT_FUNC) goto out; for (i = 0; i < count; i++) { pci_func = esw_cfg[i].pci_func; npar = &adapter->npars[pci_func]; switch (esw_cfg[i].op_mode) { case QLCNIC_PORT_DEFAULTS: npar->promisc_mode = esw_cfg[i].promisc_mode; npar->mac_override = esw_cfg[i].mac_override; npar->offload_flags = esw_cfg[i].offload_flags; npar->mac_anti_spoof = esw_cfg[i].mac_anti_spoof; npar->discard_tagged = esw_cfg[i].discard_tagged; break; case QLCNIC_ADD_VLAN: npar->pvid = esw_cfg[i].vlan_id; break; case QLCNIC_DEL_VLAN: npar->pvid = 0; break; } } out: return size; } static ssize_t qlcnic_sysfs_read_esw_config(struct file *file, struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t offset, size_t size) { struct device *dev = container_of(kobj, struct device, kobj); struct qlcnic_adapter *adapter = dev_get_drvdata(dev); struct qlcnic_esw_func_cfg esw_cfg[QLCNIC_MAX_PCI_FUNC]; u8 i; if (size != sizeof(esw_cfg)) return QL_STATUS_INVALID_PARAM; for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) { if (adapter->npars[i].type != QLCNIC_TYPE_NIC) continue; esw_cfg[i].pci_func = i; if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg[i])) return QL_STATUS_INVALID_PARAM; } memcpy(buf, &esw_cfg, size); return size; } static int validate_npar_config(struct qlcnic_adapter *adapter, struct qlcnic_npar_func_cfg *np_cfg, int count) { u8 pci_func, i; for (i = 0; i < count; i++) { pci_func = np_cfg[i].pci_func; if (pci_func >= QLCNIC_MAX_PCI_FUNC) return QL_STATUS_INVALID_PARAM; if (adapter->npars[pci_func].type != QLCNIC_TYPE_NIC) return QL_STATUS_INVALID_PARAM; if (!IS_VALID_BW(np_cfg[i].min_bw) || !IS_VALID_BW(np_cfg[i].max_bw)) return QL_STATUS_INVALID_PARAM; } return 0; } static ssize_t qlcnic_sysfs_write_npar_config(struct file *file, struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t offset, size_t size) { struct device *dev = container_of(kobj, struct device, kobj); struct qlcnic_adapter *adapter = dev_get_drvdata(dev); struct qlcnic_info nic_info; struct qlcnic_npar_func_cfg *np_cfg; int i, count, rem, ret; u8 pci_func; count = size / sizeof(struct qlcnic_npar_func_cfg); rem = size % sizeof(struct qlcnic_npar_func_cfg); if (rem) return QL_STATUS_INVALID_PARAM; np_cfg = (struct qlcnic_npar_func_cfg *) buf; ret = validate_npar_config(adapter, np_cfg, count); if (ret) return ret; for (i = 0; i < count ; i++) { pci_func = np_cfg[i].pci_func; ret = qlcnic_get_nic_info(adapter, &nic_info, pci_func); if (ret) return ret; nic_info.pci_func = pci_func; nic_info.min_tx_bw = np_cfg[i].min_bw; nic_info.max_tx_bw = np_cfg[i].max_bw; ret = qlcnic_set_nic_info(adapter, &nic_info); if (ret) return ret; adapter->npars[i].min_bw = nic_info.min_tx_bw; adapter->npars[i].max_bw = nic_info.max_tx_bw; } return size; } static ssize_t qlcnic_sysfs_read_npar_config(struct file *file, struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t offset, size_t size) { struct device *dev = container_of(kobj, struct device, kobj); struct qlcnic_adapter *adapter = dev_get_drvdata(dev); struct qlcnic_info nic_info; struct qlcnic_npar_func_cfg np_cfg[QLCNIC_MAX_PCI_FUNC]; int i, ret; if (size != sizeof(np_cfg)) return QL_STATUS_INVALID_PARAM; for (i = 0; i < QLCNIC_MAX_PCI_FUNC ; i++) { if (adapter->npars[i].type != QLCNIC_TYPE_NIC) continue; ret = qlcnic_get_nic_info(adapter, &nic_info, i); if (ret) return ret; np_cfg[i].pci_func = i; np_cfg[i].op_mode = (u8)nic_info.op_mode; np_cfg[i].port_num = nic_info.phys_port; np_cfg[i].fw_capab = nic_info.capabilities; np_cfg[i].min_bw = nic_info.min_tx_bw ; np_cfg[i].max_bw = nic_info.max_tx_bw; np_cfg[i].max_tx_queues = nic_info.max_tx_ques; np_cfg[i].max_rx_queues = nic_info.max_rx_ques; } memcpy(buf, &np_cfg, size); return size; } static ssize_t qlcnic_sysfs_get_port_stats(struct file *file, struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t offset, size_t size) { struct device *dev = container_of(kobj, struct device, kobj); struct qlcnic_adapter *adapter = dev_get_drvdata(dev); struct qlcnic_esw_statistics port_stats; int ret; if (size != sizeof(struct qlcnic_esw_statistics)) return QL_STATUS_INVALID_PARAM; if (offset >= QLCNIC_MAX_PCI_FUNC) return QL_STATUS_INVALID_PARAM; memset(&port_stats, 0, size); ret = qlcnic_get_port_stats(adapter, offset, QLCNIC_QUERY_RX_COUNTER, &port_stats.rx); if (ret) return ret; ret = qlcnic_get_port_stats(adapter, offset, QLCNIC_QUERY_TX_COUNTER, &port_stats.tx); if (ret) return ret; memcpy(buf, &port_stats, size); return size; } static ssize_t qlcnic_sysfs_get_esw_stats(struct file *file, struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t offset, size_t size) { struct device *dev = container_of(kobj, struct device, kobj); struct qlcnic_adapter *adapter = dev_get_drvdata(dev); struct qlcnic_esw_statistics esw_stats; int ret; if (size != sizeof(struct qlcnic_esw_statistics)) return QL_STATUS_INVALID_PARAM; if (offset >= QLCNIC_NIU_MAX_XG_PORTS) return QL_STATUS_INVALID_PARAM; memset(&esw_stats, 0, size); ret = qlcnic_get_eswitch_stats(adapter, offset, QLCNIC_QUERY_RX_COUNTER, &esw_stats.rx); if (ret) return ret; ret = qlcnic_get_eswitch_stats(adapter, offset, QLCNIC_QUERY_TX_COUNTER, &esw_stats.tx); if (ret) return ret; memcpy(buf, &esw_stats, size); return size; } static ssize_t qlcnic_sysfs_clear_esw_stats(struct file *file, struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t offset, size_t size) { struct device *dev = container_of(kobj, struct device, kobj); struct qlcnic_adapter *adapter = dev_get_drvdata(dev); int ret; if (offset >= QLCNIC_NIU_MAX_XG_PORTS) return QL_STATUS_INVALID_PARAM; ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_ESWITCH, offset, QLCNIC_QUERY_RX_COUNTER); if (ret) return ret; ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_ESWITCH, offset, QLCNIC_QUERY_TX_COUNTER); if (ret) return ret; return size; } static ssize_t qlcnic_sysfs_clear_port_stats(struct file *file, struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t offset, size_t size) { struct device *dev = container_of(kobj, struct device, kobj); struct qlcnic_adapter *adapter = dev_get_drvdata(dev); int ret; if (offset >= QLCNIC_MAX_PCI_FUNC) return QL_STATUS_INVALID_PARAM; ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_PORT, offset, QLCNIC_QUERY_RX_COUNTER); if (ret) return ret; ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_PORT, offset, QLCNIC_QUERY_TX_COUNTER); if (ret) return ret; return size; } static ssize_t qlcnic_sysfs_read_pci_config(struct file *file, struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t offset, size_t size) { struct device *dev = container_of(kobj, struct device, kobj); struct qlcnic_adapter *adapter = dev_get_drvdata(dev); struct qlcnic_pci_func_cfg pci_cfg[QLCNIC_MAX_PCI_FUNC]; struct qlcnic_pci_info *pci_info; int i, ret; if (size != sizeof(pci_cfg)) return QL_STATUS_INVALID_PARAM; pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL); if (!pci_info) return -ENOMEM; ret = qlcnic_get_pci_info(adapter, pci_info); if (ret) { kfree(pci_info); return ret; } for (i = 0; i < QLCNIC_MAX_PCI_FUNC ; i++) { pci_cfg[i].pci_func = pci_info[i].id; pci_cfg[i].func_type = pci_info[i].type; pci_cfg[i].port_num = pci_info[i].default_port; pci_cfg[i].min_bw = pci_info[i].tx_min_bw; pci_cfg[i].max_bw = pci_info[i].tx_max_bw; memcpy(&pci_cfg[i].def_mac_addr, &pci_info[i].mac, ETH_ALEN); } memcpy(buf, &pci_cfg, size); kfree(pci_info); return size; } static struct bin_attribute bin_attr_npar_config = { .attr = {.name = "npar_config", .mode = (S_IRUGO | S_IWUSR)}, .size = 0, .read = qlcnic_sysfs_read_npar_config, .write = qlcnic_sysfs_write_npar_config, }; static struct bin_attribute bin_attr_pci_config = { .attr = {.name = "pci_config", .mode = (S_IRUGO | S_IWUSR)}, .size = 0, .read = qlcnic_sysfs_read_pci_config, .write = NULL, }; static struct bin_attribute bin_attr_port_stats = { .attr = {.name = "port_stats", .mode = (S_IRUGO | S_IWUSR)}, .size = 0, .read = qlcnic_sysfs_get_port_stats, .write = qlcnic_sysfs_clear_port_stats, }; static struct bin_attribute bin_attr_esw_stats = { .attr = {.name = "esw_stats", .mode = (S_IRUGO | S_IWUSR)}, .size = 0, .read = qlcnic_sysfs_get_esw_stats, .write = qlcnic_sysfs_clear_esw_stats, }; static struct bin_attribute bin_attr_esw_config = { .attr = {.name = "esw_config", .mode = (S_IRUGO | S_IWUSR)}, .size = 0, .read = qlcnic_sysfs_read_esw_config, .write = qlcnic_sysfs_write_esw_config, }; static struct bin_attribute bin_attr_pm_config = { .attr = {.name = "pm_config", .mode = (S_IRUGO | S_IWUSR)}, .size = 0, .read = qlcnic_sysfs_read_pm_config, .write = qlcnic_sysfs_write_pm_config, }; static void qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter) { struct device *dev = &adapter->pdev->dev; if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG) if (device_create_file(dev, &dev_attr_bridged_mode)) dev_warn(dev, "failed to create bridged_mode sysfs entry\n"); } static void qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter) { struct device *dev = &adapter->pdev->dev; if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG) device_remove_file(dev, &dev_attr_bridged_mode); } static void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter) { struct device *dev = &adapter->pdev->dev; if (device_create_bin_file(dev, &bin_attr_port_stats)) dev_info(dev, "failed to create port stats sysfs entry"); if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC) return; 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_pci_config)) dev_info(dev, "failed to create pci config sysfs entry"); if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) return; if (device_create_bin_file(dev, &bin_attr_esw_config)) dev_info(dev, "failed to create esw config sysfs entry"); if (adapter->op_mode != QLCNIC_MGMT_FUNC) return; if (device_create_bin_file(dev, &bin_attr_npar_config)) dev_info(dev, "failed to create npar config sysfs entry"); if (device_create_bin_file(dev, &bin_attr_pm_config)) dev_info(dev, "failed to create pm config sysfs entry"); if (device_create_bin_file(dev, &bin_attr_esw_stats)) dev_info(dev, "failed to create eswitch stats sysfs entry"); } static void qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter) { struct device *dev = &adapter->pdev->dev; device_remove_bin_file(dev, &bin_attr_port_stats); if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC) return; 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_pci_config); if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) return; device_remove_bin_file(dev, &bin_attr_esw_config); if (adapter->op_mode != QLCNIC_MGMT_FUNC) return; device_remove_bin_file(dev, &bin_attr_npar_config); device_remove_bin_file(dev, &bin_attr_pm_config); device_remove_bin_file(dev, &bin_attr_esw_stats); } #ifdef CONFIG_INET #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops) static void qlcnic_config_indev_addr(struct qlcnic_adapter *adapter, struct net_device *dev, unsigned long event) { struct in_device *indev; indev = in_dev_get(dev); if (!indev) return; for_ifa(indev) { switch (event) { case NETDEV_UP: qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP); break; case NETDEV_DOWN: qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN); break; default: break; } } endfor_ifa(indev); in_dev_put(indev); } static void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event) { struct qlcnic_adapter *adapter = netdev_priv(netdev); struct vlan_group *grp; struct net_device *dev; u16 vid; qlcnic_config_indev_addr(adapter, netdev, event); grp = rcu_dereference_rtnl(netdev->vlgrp); if (!grp) return; for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) { dev = vlan_group_get_device(grp, vid); if (!dev) continue; qlcnic_config_indev_addr(adapter, dev, event); } } static int qlcnic_netdev_event(struct notifier_block *this, unsigned long event, void *ptr) { struct qlcnic_adapter *adapter; struct net_device *dev = (struct net_device *)ptr; recheck: if (dev == NULL) goto done; if (dev->priv_flags & IFF_802_1Q_VLAN) { dev = vlan_dev_real_dev(dev); goto recheck; } if (!is_qlcnic_netdev(dev)) goto done; adapter = netdev_priv(dev); if (!adapter) goto done; if (!test_bit(__QLCNIC_DEV_UP, &adapter->state)) goto done; qlcnic_config_indev_addr(adapter, dev, event); done: return NOTIFY_DONE; } static int qlcnic_inetaddr_event(struct notifier_block *this, unsigned long event, void *ptr) { struct qlcnic_adapter *adapter; struct net_device *dev; struct in_ifaddr *ifa = (struct in_ifaddr *)ptr; dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL; recheck: if (dev == NULL) goto done; if (dev->priv_flags & IFF_802_1Q_VLAN) { dev = vlan_dev_real_dev(dev); goto recheck; } if (!is_qlcnic_netdev(dev)) goto done; adapter = netdev_priv(dev); if (!adapter) goto done; if (!test_bit(__QLCNIC_DEV_UP, &adapter->state)) goto done; switch (event) { case NETDEV_UP: qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP); break; case NETDEV_DOWN: qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN); break; default: break; } done: return NOTIFY_DONE; } static struct notifier_block qlcnic_netdev_cb = { .notifier_call = qlcnic_netdev_event, }; static struct notifier_block qlcnic_inetaddr_cb = { .notifier_call = qlcnic_inetaddr_event, }; #else static void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event) { } #endif static struct pci_error_handlers qlcnic_err_handler = { .error_detected = qlcnic_io_error_detected, .slot_reset = qlcnic_io_slot_reset, .resume = qlcnic_io_resume, }; static struct pci_driver qlcnic_driver = { .name = qlcnic_driver_name, .id_table = qlcnic_pci_tbl, .probe = qlcnic_probe, .remove = __devexit_p(qlcnic_remove), #ifdef CONFIG_PM .suspend = qlcnic_suspend, .resume = qlcnic_resume, #endif .shutdown = qlcnic_shutdown, .err_handler = &qlcnic_err_handler }; static int __init qlcnic_init_module(void) { int ret; printk(KERN_INFO "%s\n", qlcnic_driver_string); qlcnic_wq = create_singlethread_workqueue("qlcnic"); if (qlcnic_wq == NULL) { printk(KERN_ERR "qlcnic: cannot create workqueue\n"); return -ENOMEM; } #ifdef CONFIG_INET register_netdevice_notifier(&qlcnic_netdev_cb); register_inetaddr_notifier(&qlcnic_inetaddr_cb); #endif ret = pci_register_driver(&qlcnic_driver); if (ret) { #ifdef CONFIG_INET unregister_inetaddr_notifier(&qlcnic_inetaddr_cb); unregister_netdevice_notifier(&qlcnic_netdev_cb); #endif destroy_workqueue(qlcnic_wq); } return ret; } module_init(qlcnic_init_module); static void __exit qlcnic_exit_module(void) { pci_unregister_driver(&qlcnic_driver); #ifdef CONFIG_INET unregister_inetaddr_notifier(&qlcnic_inetaddr_cb); unregister_netdevice_notifier(&qlcnic_netdev_cb); #endif destroy_workqueue(qlcnic_wq); } module_exit(qlcnic_exit_module);