/* * 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 qlcnic_use_msi = 1; MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled"); module_param_named(use_msi, qlcnic_use_msi, int, 0444); static int qlcnic_use_msi_x = 1; MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled"); module_param_named(use_msi_x, qlcnic_use_msi_x, int, 0444); static int qlcnic_auto_fw_reset = 1; MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled"); module_param_named(auto_fw_reset, qlcnic_auto_fw_reset, int, 0644); static int qlcnic_load_fw_file; MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file"); module_param_named(load_fw_file, qlcnic_load_fw_file, int, 0444); 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 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent); static void 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); #ifdef CONFIG_NET_POLL_CONTROLLER static void qlcnic_poll_controller(struct net_device *netdev); #endif 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_start_firmware(struct qlcnic_adapter *); static void qlcnic_set_netdev_features(struct qlcnic_adapter *, struct qlcnic_esw_func_cfg *); static int qlcnic_vlan_rx_add(struct net_device *, u16); static int qlcnic_vlan_rx_del(struct net_device *, u16); #define QLCNIC_IS_TSO_CAPABLE(adapter) \ ((adapter)->ahw->capabilities & QLCNIC_FW_CAPABILITY_TSO) /* 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_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_board_info qlcnic_boards[] = { {0x1077, 0x8020, 0x1077, 0x203, "8200 Series Single Port 10GbE Converged Network Adapter" "(TCP/IP Networking)"}, {0x1077, 0x8020, 0x1077, 0x207, "8200 Series Dual Port 10GbE Converged Network Adapter" "(TCP/IP Networking)"}, {0x1077, 0x8020, 0x1077, 0x20b, "3200 Series Dual Port 10Gb Intelligent Ethernet Adapter"}, {0x1077, 0x8020, 0x1077, 0x20c, "3200 Series Quad Port 1Gb Intelligent Ethernet Adapter"}, {0x1077, 0x8020, 0x1077, 0x20f, "3200 Series Single Port 10Gb Intelligent Ethernet Adapter"}, {0x1077, 0x8020, 0x103c, 0x3733, "NC523SFP 10Gb 2-port Server Adapter"}, {0x1077, 0x8020, 0x103c, 0x3346, "CN1000Q Dual Port Converged Network Adapter"}, {0x1077, 0x8020, 0x1077, 0x210, "QME8242-k 10GbE Dual Port Mezzanine Card"}, {0x1077, 0x8020, 0x0, 0x0, "cLOM8214 1/10GbE Controller"}, }; #define NUM_SUPPORTED_BOARDS ARRAY_SIZE(qlcnic_boards) static const struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG; 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; } 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 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 -EADDRNOTAVAIL; 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_rx_mode = 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 const struct net_device_ops qlcnic_netdev_failed_ops = { .ndo_open = qlcnic_open, }; 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->ahw->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) { u32 offset, mask_reg; const struct qlcnic_legacy_intr_set *legacy_intrp; struct qlcnic_hardware_context *ahw = adapter->ahw; struct pci_dev *pdev = adapter->pdev; if (qlcnic_use_msi && !pci_enable_msi(pdev)) { adapter->flags |= QLCNIC_MSI_ENABLED; offset = msi_tgt_status[adapter->ahw->pci_func]; adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw, offset); 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->ahw->int_vec_bit = legacy_intrp->int_vec_bit; offset = legacy_intrp->tgt_status_reg; adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset); mask_reg = legacy_intrp->tgt_mask_reg; adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg); adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR); adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, 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->ahw->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, j = 0; u16 act_pci_func; u8 pfn; 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) goto err_pci_info; act_pci_func = adapter->ahw->act_pci_func; adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) * act_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; } 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; } if (!pci_info[i].active || (pci_info[i].type != QLCNIC_TYPE_NIC)) continue; adapter->npars[j].pci_func = pfn; adapter->npars[j].active = (u8)pci_info[i].active; adapter->npars[j].type = (u8)pci_info[i].type; adapter->npars[j].phy_port = (u8)pci_info[i].default_port; adapter->npars[j].min_bw = pci_info[i].tx_min_bw; adapter->npars[j].max_bw = pci_info[i].tx_max_bw; j++; } 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; struct qlcnic_hardware_context *ahw = adapter->ahw; /* 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 < ahw->act_pci_func; i++) { id = adapter->npars[i].pci_func; if (id == ahw->pci_func) continue; data |= (qlcnic_config_npars & QLC_DEV_SET_DRV(0xf, id)); } } else { data = QLCRD32(adapter, QLCNIC_DRV_OP_MODE); data = (data & ~QLC_DEV_SET_DRV(0xf, ahw->pci_func)) | (QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, ahw->pci_func)); } QLCWR32(adapter, QLCNIC_DRV_OP_MODE, data); 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->ahw->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->ahw->op_mode = QLCNIC_NON_PRIV_FUNC; dev_info(&adapter->pdev->dev, "HAL Version: %d Non Privileged function\n", adapter->ahw->fw_hal_version); adapter->nic_ops = &qlcnic_vf_ops; } else adapter->nic_ops = &qlcnic_ops; } #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL static void qlcnic_get_bar_length(u32 dev_id, ulong *bar) { switch (dev_id) { case PCI_DEVICE_ID_QLOGIC_QLE824X: *bar = QLCNIC_82XX_BAR0_LENGTH; break; default: *bar = 0; } } static int qlcnic_setup_pci_map(struct pci_dev *pdev, struct qlcnic_hardware_context *ahw) { u32 offset; void __iomem *mem_ptr0 = NULL; resource_size_t mem_base; unsigned long mem_len, pci_len0 = 0, bar0_len; /* remap phys address */ mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ mem_len = pci_resource_len(pdev, 0); qlcnic_get_bar_length(pdev->device, &bar0_len); if (mem_len >= bar0_len) { 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)); ahw->pci_base0 = mem_ptr0; ahw->pci_len0 = pci_len0; offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func)); qlcnic_get_ioaddr(ahw, offset); return 0; } static void qlcnic_get_board_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, prev_fw_version; struct pci_dev *pdev = adapter->pdev; struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump; prev_fw_version = adapter->fw_version; 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); if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC) { if (fw_dump->tmpl_hdr == NULL || adapter->fw_version > prev_fw_version) { if (fw_dump->tmpl_hdr) vfree(fw_dump->tmpl_hdr); if (!qlcnic_fw_cmd_get_minidump_temp(adapter)) dev_info(&pdev->dev, "Supports FW dump capability\n"); } } 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->ahw->msix_supported = !!qlcnic_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; memset(&nic_info, 0, sizeof(struct qlcnic_info)); err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func); if (err) return err; adapter->ahw->physical_port = (u8)nic_info.phys_port; adapter->ahw->switch_mode = nic_info.switch_mode; adapter->ahw->max_tx_ques = nic_info.max_tx_ques; adapter->ahw->max_rx_ques = nic_info.max_rx_ques; adapter->ahw->capabilities = nic_info.capabilities; adapter->ahw->max_mac_filters = nic_info.max_mac_filters; adapter->ahw->max_mtu = nic_info.max_mtu; if (adapter->ahw->capabilities & BIT_6) adapter->flags |= QLCNIC_ESWITCH_ENABLED; else adapter->flags &= ~QLCNIC_ESWITCH_ENABLED; return err; } 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 int qlcnic_vlan_rx_add(struct net_device *netdev, u16 vid) { struct qlcnic_adapter *adapter = netdev_priv(netdev); set_bit(vid, adapter->vlans); return 0; } static int 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); return 0; } 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; netdev_features_t 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->ahw->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->ahw->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->ahw->fw_hal_version); } else if (priv_level == QLCNIC_PRIV_FUNC) { adapter->ahw->op_mode = QLCNIC_PRIV_FUNC; dev_info(&adapter->pdev->dev, "HAL Version: %d, Privileged function\n", adapter->ahw->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 < adapter->ahw->act_pci_func; i++) { memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg)); esw_cfg.pci_func = adapter->npars[i].pci_func; esw_cfg.mac_override = BIT_0; esw_cfg.promisc_mode = BIT_0; if (qlcnic_82xx_check(adapter)) { esw_cfg.offload_flags = BIT_0; if (QLCNIC_IS_TSO_CAPABLE(adapter)) 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; u8 pci_func; if (qlcnic_82xx_check(adapter)) if (!adapter->need_fw_reset) return 0; /* Set the NPAR config data after FW reset */ for (i = 0; i < adapter->ahw->act_pci_func; i++) { npar = &adapter->npars[i]; pci_func = npar->pci_func; memset(&nic_info, 0, sizeof(struct qlcnic_info)); err = qlcnic_get_nic_info(adapter, &nic_info, pci_func); 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, pci_func); if (err) return err; } err = qlcnic_reset_eswitch_config(adapter, npar, pci_func); 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->ahw->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->ahw->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 (qlcnic_load_fw_file) qlcnic_request_firmware(adapter); else { err = qlcnic_check_flash_fw_ver(adapter); if (err) goto err_out; adapter->ahw->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->ahw->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; u32 capab2; 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 (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) { capab2 = QLCRD32(adapter, CRB_FW_CAPABILITIES_2); if (capab2 & QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG) adapter->flags |= QLCNIC_FW_LRO_MSS_CAP; } 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->ahw->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); adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP; 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->ahw->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->ahw->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->ahw->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->ahw->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->ahw->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); qlcnic_restore_indev_addr(netdev, NETDEV_UP); } } 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, int pci_using_dac) { int err; struct pci_dev *pdev = adapter->pdev; adapter->ahw->mc_enabled = 0; adapter->ahw->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->ahw->capabilities & QLCNIC_FW_CAPABILITY_TSO) netdev->hw_features |= NETIF_F_TSO | NETIF_F_TSO6; if (pci_using_dac == 1) netdev->hw_features |= NETIF_F_HIGHDMA; netdev->vlan_features = netdev->hw_features; if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX) netdev->hw_features |= NETIF_F_HW_VLAN_TX; if (adapter->ahw->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, int *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 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { struct net_device *netdev = NULL; struct qlcnic_adapter *adapter = NULL; int err, pci_using_dac = -1; uint8_t revision_id; char board_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) { err = -ENOMEM; goto err_out_free_res; } SET_NETDEV_DEV(netdev, &pdev->dev); adapter = netdev_priv(netdev); adapter->netdev = netdev; adapter->pdev = pdev; err = qlcnic_alloc_adapter_resources(adapter); if (err) 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(pdev, adapter->ahw); if (err) goto err_out_free_hw; qlcnic_check_vf(adapter); /* 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" "\t\tIf reboot doesn't help, try flashing the card\n"); goto err_out_maintenance_mode; } if (qlcnic_read_mac_addr(adapter)) dev_warn(&pdev->dev, "failed to read mac addr\n"); if (adapter->portnum == 0) { qlcnic_get_board_name(adapter, board_name); pr_info("%s: %s Board Chip rev 0x%x\n", module_name(THIS_MODULE), board_name, adapter->ahw->revision_id); } qlcnic_clear_stats(adapter); err = qlcnic_alloc_msix_entries(adapter, adapter->ahw->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); if (qlcnic_82xx_check(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; err_out_maintenance_mode: netdev->netdev_ops = &qlcnic_netdev_failed_ops; SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_failed_ops); err = register_netdev(netdev); if (err) { dev_err(&pdev->dev, "failed to register net device\n"); goto err_out_decr_ref; } pci_set_drvdata(pdev, adapter); qlcnic_create_diag_entries(adapter); return 0; } static void 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); if (qlcnic_82xx_check(adapter)) 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); if (qlcnic_82xx_check(adapter)) qlcnic_clr_all_drv_state(adapter, 0); clear_bit(__QLCNIC_RESETTING, &adapter->state); retval = pci_save_state(pdev); if (retval) return retval; if (qlcnic_82xx_check(adapter)) { 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); u32 state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); int err; if (state == QLCNIC_DEV_FAILED || (state == QLCNIC_DEV_BADBAD)) { netdev_err(netdev, "Device in FAILED state\n"); return -EIO; } 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 int qlcnic_check_temp(struct qlcnic_adapter *adapter) { struct net_device *netdev = adapter->netdev; u32 temp_state, temp_val, temp = 0; int rv = 0; if (qlcnic_82xx_check(adapter)) 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->ahw->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->ahw->temp == QLCNIC_TEMP_WARN) { dev_info(&netdev->dev, "Device temperature is now %d degrees C" " in normal range.\n", temp_val); } } adapter->ahw->temp = temp_state; return rv; } 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->ahw->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->ahw->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->ahw->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; } #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; adapter->flags &= ~QLCNIC_FW_HANG; 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->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) { qlcnic_api_unlock(adapter); goto wait_npar; } if (dev_state == QLCNIC_DEV_INITIALIZING || dev_state == QLCNIC_DEV_READY) { dev_info(&adapter->pdev->dev, "Detected state change from " "DEV_NEED_RESET, skipping ack check\n"); goto skip_ack_check; } if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) { dev_info(&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); adapter->flags |= QLCNIC_FW_HANG; } 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) { dev_err(&adapter->pdev->dev, "Detaching the device: peg halt status1=0x%x\n", status); if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) { dev_err(&adapter->pdev->dev, "On board active cooling fan failed. " "Device has been halted.\n"); dev_err(&adapter->pdev->dev, "Replace the adapter.\n"); } goto err_ret; } if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) { dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n", adapter->ahw->temp); 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)) { dev_err(&adapter->pdev->dev, "Failed to set driver state," "detaching the device.\n"); goto err_ret; } } adapter->fw_wait_cnt = 0; qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY); return; err_ret: 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, xg_val = 0, gb_val = 0; qlcnic_xg_set_xg0_mask(xg_val); qlcnic_xg_set_xg1_mask(xg_val); QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val); qlcnic_gb_set_gb0_mask(gb_val); qlcnic_gb_set_gb1_mask(gb_val); qlcnic_gb_set_gb2_mask(gb_val); qlcnic_gb_set_gb3_mask(gb_val); QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val); dev_info(&adapter->pdev->dev, "Pause control frames disabled" " on all ports\n"); adapter->need_fw_reset = 1; if (qlcnic_api_lock(adapter)) return; state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); if (state == QLCNIC_DEV_FAILED || (state == QLCNIC_DEV_BADBAD)) { netdev_err(adapter->netdev, "Device is in FAILED state, Please Reboot\n"); qlcnic_api_unlock(adapter); return; } 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); if (!adapter->fw_work.work.func) return; 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->ahw->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; adapter->flags &= ~QLCNIC_FW_HANG; 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; u32 peg_status; 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->ahw->reset_context && qlcnic_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; adapter->flags |= QLCNIC_FW_HANG; qlcnic_dev_request_reset(adapter); if (qlcnic_auto_fw_reset) clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state); dev_err(&adapter->pdev->dev, "firmware hang detected\n"); dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n" "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n" "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n" "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n" "PEG_NET_4_PC: 0x%x\n", QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1), QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS2), QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c), QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c), QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c), QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c), QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c)); peg_status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1); if (QLCNIC_FWERROR_CODE(peg_status) == 0x67) dev_err(&adapter->pdev->dev, "Firmware aborted with error code 0x00006700. " "Device is being reset.\n"); detach: adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state : QLCNIC_DEV_NEED_RESET; if (qlcnic_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->ahw->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; } int qlcnic_validate_max_rss(struct net_device *netdev, u8 max_hw, u8 val) { if (!qlcnic_use_msi_x && !qlcnic_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; } #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 net_device *dev; u16 vid; qlcnic_config_indev_addr(adapter, netdev, event); for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) { dev = __vlan_find_dev_deep(netdev, 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 = 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);