diff options
Diffstat (limited to 'drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c')
| -rw-r--r-- | drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c | 4390 |
1 files changed, 4390 insertions, 0 deletions
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c new file mode 100644 index 000000000000..ec8ef72d38d3 --- /dev/null +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c @@ -0,0 +1,4390 @@ +/* + * QLogic qlcnic NIC Driver + * Copyright (c) 2009-2010 QLogic Corporation + * + * See LICENSE.qlcnic for copyright and licensing details. + */ + +#include <linux/slab.h> +#include <linux/vmalloc.h> +#include <linux/interrupt.h> + +#include "qlcnic.h" + +#include <linux/swab.h> +#include <linux/dma-mapping.h> +#include <net/ip.h> +#include <linux/ipv6.h> +#include <linux/inetdevice.h> +#include <linux/sysfs.h> +#include <linux/aer.h> +#include <linux/log2.h> + +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, 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->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->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; + } + + 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; + 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->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); + 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) + 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; + 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; + 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; + + adapter->flags |= QLCNIC_FW_HANG; + + qlcnic_dev_request_reset(adapter); + + if (auto_fw_reset) + clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state); + + dev_info(&netdev->dev, "firmware hang detected\n"); + dev_info(&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)); +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 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 = __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); |