diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_main.c | 38 |
1 files changed, 28 insertions, 10 deletions
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index b4c9c77c09d..c814d9bfbca 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -87,6 +87,25 @@ MODULE_VERSION(DRV_VERSION); #define DEFAULT_DEBUG_LEVEL_SHIFT 3 +static void ixgbe_release_hw_control(struct ixgbe_adapter *adapter) +{ + u32 ctrl_ext; + + /* Let firmware take over control of h/w */ + ctrl_ext = IXGBE_READ_REG(&adapter->hw, IXGBE_CTRL_EXT); + IXGBE_WRITE_REG(&adapter->hw, IXGBE_CTRL_EXT, + ctrl_ext & ~IXGBE_CTRL_EXT_DRV_LOAD); +} + +static void ixgbe_get_hw_control(struct ixgbe_adapter *adapter) +{ + u32 ctrl_ext; + + /* Let firmware know the driver has taken over */ + ctrl_ext = IXGBE_READ_REG(&adapter->hw, IXGBE_CTRL_EXT); + IXGBE_WRITE_REG(&adapter->hw, IXGBE_CTRL_EXT, + ctrl_ext | IXGBE_CTRL_EXT_DRV_LOAD); +} #ifdef DEBUG /** @@ -1204,6 +1223,8 @@ static int ixgbe_up_complete(struct ixgbe_adapter *adapter) u32 txdctl, rxdctl, mhadd; int max_frame = netdev->mtu + ETH_HLEN + ETH_FCS_LEN; + ixgbe_get_hw_control(adapter); + if (adapter->flags & (IXGBE_FLAG_MSIX_ENABLED | IXGBE_FLAG_MSI_ENABLED)) { if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { @@ -1490,6 +1511,8 @@ static int ixgbe_suspend(struct pci_dev *pdev, pm_message_t state) pci_enable_wake(pdev, PCI_D3hot, 0); pci_enable_wake(pdev, PCI_D3cold, 0); + ixgbe_release_hw_control(adapter); + pci_disable_device(pdev); pci_set_power_state(pdev, pci_choose_state(pdev, state)); @@ -1891,14 +1914,8 @@ static int ixgbe_open(struct net_device *netdev) { struct ixgbe_adapter *adapter = netdev_priv(netdev); int err; - u32 ctrl_ext; u32 num_rx_queues = adapter->num_rx_queues; - /* Let firmware know the driver has taken over */ - ctrl_ext = IXGBE_READ_REG(&adapter->hw, IXGBE_CTRL_EXT); - IXGBE_WRITE_REG(&adapter->hw, IXGBE_CTRL_EXT, - ctrl_ext | IXGBE_CTRL_EXT_DRV_LOAD); - try_intr_reinit: /* allocate transmit descriptors */ err = ixgbe_setup_all_tx_resources(adapter); @@ -1949,6 +1966,7 @@ try_intr_reinit: return 0; err_up: + ixgbe_release_hw_control(adapter); ixgbe_free_irq(adapter); err_req_irq: ixgbe_free_all_rx_resources(adapter); @@ -1974,7 +1992,6 @@ err_setup_tx: static int ixgbe_close(struct net_device *netdev) { struct ixgbe_adapter *adapter = netdev_priv(netdev); - u32 ctrl_ext; ixgbe_down(adapter); ixgbe_free_irq(adapter); @@ -1982,9 +1999,7 @@ static int ixgbe_close(struct net_device *netdev) ixgbe_free_all_tx_resources(adapter); ixgbe_free_all_rx_resources(adapter); - ctrl_ext = IXGBE_READ_REG(&adapter->hw, IXGBE_CTRL_EXT); - IXGBE_WRITE_REG(&adapter->hw, IXGBE_CTRL_EXT, - ctrl_ext & ~IXGBE_CTRL_EXT_DRV_LOAD); + ixgbe_release_hw_control(adapter); return 0; } @@ -2749,6 +2764,7 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev, return 0; err_register: + ixgbe_release_hw_control(adapter); err_hw_init: err_sw_init: err_eeprom: @@ -2784,6 +2800,8 @@ static void __devexit ixgbe_remove(struct pci_dev *pdev) unregister_netdev(netdev); + ixgbe_release_hw_control(adapter); + kfree(adapter->tx_ring); kfree(adapter->rx_ring); |