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author | 2011-01-06 14:29:52 +0000 | |
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committer | 2011-01-09 23:44:09 -0800 | |
commit | 31dbe5b4ac6fca72dec946e4d0fa7f0913f1d9b1 (patch) | |
tree | 8774e4836c881a7a2c18ddb02f253b66c82aec6c /drivers/net/e1000e/netdev.c | |
parent | e1000e: use either_crc_le() rather than re-write it (diff) | |
download | linux-31dbe5b4ac6fca72dec946e4d0fa7f0913f1d9b1.tar.gz linux-31dbe5b4ac6fca72dec946e4d0fa7f0913f1d9b1.tar.bz2 linux-31dbe5b4ac6fca72dec946e4d0fa7f0913f1d9b1.zip |
e1000e: power off PHY after reset when interface is down
Some Phys supported by the driver do not remain powered off across a reset
of the device when the interface is down, e.g. on 82571, but not on 82574.
This patch powers down (only when WoL is disabled) the PHY after a reset if
the interface is down and the ethtool diagnostics are not currently running.
The ethtool diagnostic function required a minor re-factor as a result, and
the e1000_[get|put]_hw_control() functions are renamed since they are no
longer static to netdev.c as they are needed by the ethtool diagnostics.
A couple minor whitespace issues were cleaned up, too.
Reported-by: Arthur Jones <ajones@riverbed.com>
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/e1000e/netdev.c')
-rw-r--r-- | drivers/net/e1000e/netdev.c | 46 |
1 files changed, 26 insertions, 20 deletions
diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c index 98729a6fb096..fa5b60452547 100644 --- a/drivers/net/e1000e/netdev.c +++ b/drivers/net/e1000e/netdev.c @@ -1980,15 +1980,15 @@ static void e1000_irq_enable(struct e1000_adapter *adapter) } /** - * e1000_get_hw_control - get control of the h/w from f/w + * e1000e_get_hw_control - get control of the h/w from f/w * @adapter: address of board private structure * - * e1000_get_hw_control sets {CTRL_EXT|SWSM}:DRV_LOAD bit. + * e1000e_get_hw_control sets {CTRL_EXT|SWSM}:DRV_LOAD bit. * For ASF and Pass Through versions of f/w this means that * the driver is loaded. For AMT version (only with 82573) * of the f/w this means that the network i/f is open. **/ -static void e1000_get_hw_control(struct e1000_adapter *adapter) +void e1000e_get_hw_control(struct e1000_adapter *adapter) { struct e1000_hw *hw = &adapter->hw; u32 ctrl_ext; @@ -2005,16 +2005,16 @@ static void e1000_get_hw_control(struct e1000_adapter *adapter) } /** - * e1000_release_hw_control - release control of the h/w to f/w + * e1000e_release_hw_control - release control of the h/w to f/w * @adapter: address of board private structure * - * e1000_release_hw_control resets {CTRL_EXT|SWSM}:DRV_LOAD bit. + * e1000e_release_hw_control resets {CTRL_EXT|SWSM}:DRV_LOAD bit. * For ASF and Pass Through versions of f/w this means that the * driver is no longer loaded. For AMT version (only with 82573) i * of the f/w this means that the network i/f is closed. * **/ -static void e1000_release_hw_control(struct e1000_adapter *adapter) +void e1000e_release_hw_control(struct e1000_adapter *adapter) { struct e1000_hw *hw = &adapter->hw; u32 ctrl_ext; @@ -2445,7 +2445,7 @@ static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) E1000_MNG_DHCP_COOKIE_STATUS_VLAN) && (vid == adapter->mng_vlan_id)) { /* release control to f/w */ - e1000_release_hw_control(adapter); + e1000e_release_hw_control(adapter); return; } @@ -3187,7 +3187,6 @@ void e1000e_reset(struct e1000_adapter *adapter) ew32(PBA, pba); } - /* * flow control settings * @@ -3275,7 +3274,7 @@ void e1000e_reset(struct e1000_adapter *adapter) * that the network interface is in control */ if (adapter->flags & FLAG_HAS_AMT) - e1000_get_hw_control(adapter); + e1000e_get_hw_control(adapter); ew32(WUC, 0); @@ -3288,6 +3287,13 @@ void e1000e_reset(struct e1000_adapter *adapter) ew32(VET, ETH_P_8021Q); e1000e_reset_adaptive(hw); + + if (!netif_running(adapter->netdev) && + !test_bit(__E1000_TESTING, &adapter->state)) { + e1000_power_down_phy(adapter); + return; + } + e1000_get_phy_info(hw); if ((adapter->flags & FLAG_HAS_SMART_POWER_DOWN) && @@ -3573,7 +3579,7 @@ static int e1000_open(struct net_device *netdev) * interface is now open and reset the part to a known state. */ if (adapter->flags & FLAG_HAS_AMT) { - e1000_get_hw_control(adapter); + e1000e_get_hw_control(adapter); e1000e_reset(adapter); } @@ -3637,7 +3643,7 @@ static int e1000_open(struct net_device *netdev) return 0; err_req_irq: - e1000_release_hw_control(adapter); + e1000e_release_hw_control(adapter); e1000_power_down_phy(adapter); e1000e_free_rx_resources(adapter); err_setup_rx: @@ -3692,8 +3698,9 @@ static int e1000_close(struct net_device *netdev) * If AMT is enabled, let the firmware know that the network * interface is now closed */ - if (adapter->flags & FLAG_HAS_AMT) - e1000_release_hw_control(adapter); + if ((adapter->flags & FLAG_HAS_AMT) && + !test_bit(__E1000_TESTING, &adapter->state)) + e1000e_release_hw_control(adapter); if ((adapter->flags & FLAG_HAS_ERT) || (adapter->hw.mac.type == e1000_pch2lan)) @@ -5212,7 +5219,7 @@ static int __e1000_shutdown(struct pci_dev *pdev, bool *enable_wake, * Release control of h/w to f/w. If f/w is AMT enabled, this * would have already happened in close and is redundant. */ - e1000_release_hw_control(adapter); + e1000e_release_hw_control(adapter); pci_disable_device(pdev); @@ -5369,7 +5376,7 @@ static int __e1000_resume(struct pci_dev *pdev) * under the control of the driver. */ if (!(adapter->flags & FLAG_HAS_AMT)) - e1000_get_hw_control(adapter); + e1000e_get_hw_control(adapter); return 0; } @@ -5616,7 +5623,7 @@ static void e1000_io_resume(struct pci_dev *pdev) * under the control of the driver. */ if (!(adapter->flags & FLAG_HAS_AMT)) - e1000_get_hw_control(adapter); + e1000e_get_hw_control(adapter); } @@ -5966,7 +5973,7 @@ static int __devinit e1000_probe(struct pci_dev *pdev, * under the control of the driver. */ if (!(adapter->flags & FLAG_HAS_AMT)) - e1000_get_hw_control(adapter); + e1000e_get_hw_control(adapter); strncpy(netdev->name, "eth%d", sizeof(netdev->name) - 1); err = register_netdev(netdev); @@ -5985,12 +5992,11 @@ static int __devinit e1000_probe(struct pci_dev *pdev, err_register: if (!(adapter->flags & FLAG_HAS_AMT)) - e1000_release_hw_control(adapter); + e1000e_release_hw_control(adapter); err_eeprom: if (!e1000_check_reset_block(&adapter->hw)) e1000_phy_hw_reset(&adapter->hw); err_hw_init: - kfree(adapter->tx_ring); kfree(adapter->rx_ring); err_sw_init: @@ -6056,7 +6062,7 @@ static void __devexit e1000_remove(struct pci_dev *pdev) * Release control of h/w to f/w. If f/w is AMT enabled, this * would have already happened in close and is redundant. */ - e1000_release_hw_control(adapter); + e1000e_release_hw_control(adapter); e1000e_reset_interrupt_capability(adapter); kfree(adapter->tx_ring); |