diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/igb/e1000_82575.c | 44 | ||||
| -rw-r--r-- | drivers/net/igb/e1000_82575.h | 2 | ||||
| -rw-r--r-- | drivers/net/igb/e1000_defines.h | 1 | ||||
| -rw-r--r-- | drivers/net/igb/e1000_phy.c | 35 | ||||
| -rw-r--r-- | drivers/net/igb/e1000_phy.h | 2 | ||||
| -rw-r--r-- | drivers/net/igb/igb.h | 1 | ||||
| -rw-r--r-- | drivers/net/igb/igb_ethtool.c | 16 | ||||
| -rw-r--r-- | drivers/net/igb/igb_main.c | 39 |
8 files changed, 129 insertions, 11 deletions
diff --git a/drivers/net/igb/e1000_82575.c b/drivers/net/igb/e1000_82575.c index 59817bcc716..9d7fa2fb85e 100644 --- a/drivers/net/igb/e1000_82575.c +++ b/drivers/net/igb/e1000_82575.c @@ -727,6 +727,34 @@ static s32 igb_check_for_link_82575(struct e1000_hw *hw) } /** + * igb_power_up_serdes_link_82575 - Power up the serdes link after shutdown + * @hw: pointer to the HW structure + **/ +void igb_power_up_serdes_link_82575(struct e1000_hw *hw) +{ + u32 reg; + + + if ((hw->phy.media_type != e1000_media_type_internal_serdes) && + !igb_sgmii_active_82575(hw)) + return; + + /* Enable PCS to turn on link */ + reg = rd32(E1000_PCS_CFG0); + reg |= E1000_PCS_CFG_PCS_EN; + wr32(E1000_PCS_CFG0, reg); + + /* Power up the laser */ + reg = rd32(E1000_CTRL_EXT); + reg &= ~E1000_CTRL_EXT_SDP3_DATA; + wr32(E1000_CTRL_EXT, reg); + + /* flush the write to verify completion */ + wrfl(); + msleep(1); +} + +/** * igb_get_pcs_speed_and_duplex_82575 - Retrieve current speed/duplex * @hw: pointer to the HW structure * @speed: stores the current speed @@ -1166,6 +1194,22 @@ out: } /** + * igb_power_down_phy_copper_82575 - Remove link during PHY power down + * @hw: pointer to the HW structure + * + * In the case of a PHY power down to save power, or to turn off link during a + * driver unload, or wake on lan is not enabled, remove the link. + **/ +void igb_power_down_phy_copper_82575(struct e1000_hw *hw) +{ + /* If the management interface is not enabled, then power down */ + if (!(igb_enable_mng_pass_thru(hw) || igb_check_reset_block(hw))) + igb_power_down_phy_copper(hw); + + return; +} + +/** * igb_clear_hw_cntrs_82575 - Clear device specific hardware counters * @hw: pointer to the HW structure * diff --git a/drivers/net/igb/e1000_82575.h b/drivers/net/igb/e1000_82575.h index bb53083ec61..fbe1c99c193 100644 --- a/drivers/net/igb/e1000_82575.h +++ b/drivers/net/igb/e1000_82575.h @@ -29,6 +29,8 @@ #define _E1000_82575_H_ extern void igb_shutdown_serdes_link_82575(struct e1000_hw *hw); +extern void igb_power_up_serdes_link_82575(struct e1000_hw *hw); +extern void igb_power_down_phy_copper_82575(struct e1000_hw *hw); extern void igb_rx_fifo_flush_82575(struct e1000_hw *hw); #define ID_LED_DEFAULT_82575_SERDES ((ID_LED_DEF1_DEF2 << 12) | \ diff --git a/drivers/net/igb/e1000_defines.h b/drivers/net/igb/e1000_defines.h index 6e036ae3138..c0171507076 100644 --- a/drivers/net/igb/e1000_defines.h +++ b/drivers/net/igb/e1000_defines.h @@ -481,6 +481,7 @@ /* PHY Control Register */ #define MII_CR_FULL_DUPLEX 0x0100 /* FDX =1, half duplex =0 */ #define MII_CR_RESTART_AUTO_NEG 0x0200 /* Restart auto negotiation */ +#define MII_CR_POWER_DOWN 0x0800 /* Power down */ #define MII_CR_AUTO_NEG_EN 0x1000 /* Auto Neg Enable */ #define MII_CR_LOOPBACK 0x4000 /* 0 = normal, 1 = loopback */ #define MII_CR_RESET 0x8000 /* 0 = normal, 1 = PHY reset */ diff --git a/drivers/net/igb/e1000_phy.c b/drivers/net/igb/e1000_phy.c index 3670a66401b..cf1f3230092 100644 --- a/drivers/net/igb/e1000_phy.c +++ b/drivers/net/igb/e1000_phy.c @@ -1931,6 +1931,41 @@ s32 igb_phy_init_script_igp3(struct e1000_hw *hw) } /** + * igb_power_up_phy_copper - Restore copper link in case of PHY power down + * @hw: pointer to the HW structure + * + * In the case of a PHY power down to save power, or to turn off link during a + * driver unload, restore the link to previous settings. + **/ +void igb_power_up_phy_copper(struct e1000_hw *hw) +{ + u16 mii_reg = 0; + + /* The PHY will retain its settings across a power down/up cycle */ + hw->phy.ops.read_reg(hw, PHY_CONTROL, &mii_reg); + mii_reg &= ~MII_CR_POWER_DOWN; + hw->phy.ops.write_reg(hw, PHY_CONTROL, mii_reg); +} + +/** + * igb_power_down_phy_copper - Power down copper PHY + * @hw: pointer to the HW structure + * + * Power down PHY to save power when interface is down and wake on lan + * is not enabled. + **/ +void igb_power_down_phy_copper(struct e1000_hw *hw) +{ + u16 mii_reg = 0; + + /* The PHY will retain its settings across a power down/up cycle */ + hw->phy.ops.read_reg(hw, PHY_CONTROL, &mii_reg); + mii_reg |= MII_CR_POWER_DOWN; + hw->phy.ops.write_reg(hw, PHY_CONTROL, mii_reg); + msleep(1); +} + +/** * igb_check_polarity_82580 - Checks the polarity. * @hw: pointer to the HW structure * diff --git a/drivers/net/igb/e1000_phy.h b/drivers/net/igb/e1000_phy.h index 555eb54bb6e..565a6dbb371 100644 --- a/drivers/net/igb/e1000_phy.h +++ b/drivers/net/igb/e1000_phy.h @@ -60,6 +60,8 @@ s32 igb_setup_copper_link(struct e1000_hw *hw); s32 igb_write_phy_reg_igp(struct e1000_hw *hw, u32 offset, u16 data); s32 igb_phy_has_link(struct e1000_hw *hw, u32 iterations, u32 usec_interval, bool *success); +void igb_power_up_phy_copper(struct e1000_hw *hw); +void igb_power_down_phy_copper(struct e1000_hw *hw); s32 igb_phy_init_script_igp3(struct e1000_hw *hw); s32 igb_read_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 *data); s32 igb_write_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 data); diff --git a/drivers/net/igb/igb.h b/drivers/net/igb/igb.h index 452a4dee87f..0e0800dc801 100644 --- a/drivers/net/igb/igb.h +++ b/drivers/net/igb/igb.h @@ -358,6 +358,7 @@ extern void igb_alloc_rx_buffers_adv(struct igb_ring *, int); extern void igb_update_stats(struct igb_adapter *); extern bool igb_has_link(struct igb_adapter *adapter); extern void igb_set_ethtool_ops(struct net_device *); +extern void igb_power_up_link(struct igb_adapter *); static inline s32 igb_reset_phy(struct e1000_hw *hw) { diff --git a/drivers/net/igb/igb_ethtool.c b/drivers/net/igb/igb_ethtool.c index 4eea03b428c..485288303f3 100644 --- a/drivers/net/igb/igb_ethtool.c +++ b/drivers/net/igb/igb_ethtool.c @@ -1722,6 +1722,9 @@ static void igb_diag_test(struct net_device *netdev, dev_info(&adapter->pdev->dev, "offline testing starting\n"); + /* power up link for link test */ + igb_power_up_link(adapter); + /* Link test performed before hardware reset so autoneg doesn't * interfere with test result */ if (igb_link_test(adapter, &data[4])) @@ -1745,6 +1748,8 @@ static void igb_diag_test(struct net_device *netdev, eth_test->flags |= ETH_TEST_FL_FAILED; igb_reset(adapter); + /* power up link for loopback test */ + igb_power_up_link(adapter); if (igb_loopback_test(adapter, &data[3])) eth_test->flags |= ETH_TEST_FL_FAILED; @@ -1763,9 +1768,14 @@ static void igb_diag_test(struct net_device *netdev, dev_open(netdev); } else { dev_info(&adapter->pdev->dev, "online testing starting\n"); - /* Online tests */ - if (igb_link_test(adapter, &data[4])) - eth_test->flags |= ETH_TEST_FL_FAILED; + + /* PHY is powered down when interface is down */ + if (!netif_carrier_ok(netdev)) { + data[4] = 0; + } else { + if (igb_link_test(adapter, &data[4])) + eth_test->flags |= ETH_TEST_FL_FAILED; + } /* Online tests aren't run; pass by default */ data[0] = 0; diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c index e40319e2ec2..0427e7c1029 100644 --- a/drivers/net/igb/igb_main.c +++ b/drivers/net/igb/igb_main.c @@ -1114,6 +1114,29 @@ static void igb_configure(struct igb_adapter *adapter) adapter->tx_queue_len = netdev->tx_queue_len; } +/** + * igb_power_up_link - Power up the phy/serdes link + * @adapter: address of board private structure + **/ +void igb_power_up_link(struct igb_adapter *adapter) +{ + if (adapter->hw.phy.media_type == e1000_media_type_copper) + igb_power_up_phy_copper(&adapter->hw); + else + igb_power_up_serdes_link_82575(&adapter->hw); +} + +/** + * igb_power_down_link - Power down the phy/serdes link + * @adapter: address of board private structure + */ +static void igb_power_down_link(struct igb_adapter *adapter) +{ + if (adapter->hw.phy.media_type == e1000_media_type_copper) + igb_power_down_phy_copper_82575(&adapter->hw); + else + igb_shutdown_serdes_link_82575(&adapter->hw); +} /** * igb_up - Open the interface and prepare it to handle traffic @@ -1335,6 +1358,9 @@ void igb_reset(struct igb_adapter *adapter) wr32(E1000_PCIEMISC, reg & ~E1000_PCIEMISC_LX_DECISION); } + if (!netif_running(adapter->netdev)) + igb_power_down_link(adapter); + igb_update_mng_vlan(adapter); /* Enable h/w to recognize an 802.1Q VLAN Ethernet packet */ @@ -1717,9 +1743,6 @@ static void __devexit igb_remove(struct pci_dev *pdev) unregister_netdev(netdev); - if (!igb_check_reset_block(hw)) - igb_reset_phy(hw); - igb_clear_interrupt_scheme(adapter); #ifdef CONFIG_PCI_IOV @@ -1995,7 +2018,7 @@ static int igb_open(struct net_device *netdev) if (err) goto err_setup_rx; - /* e1000_power_up_phy(adapter); */ + igb_power_up_link(adapter); /* before we allocate an interrupt, we must be ready to handle it. * Setting DEBUG_SHIRQ in the kernel makes it fire an interrupt @@ -2037,7 +2060,7 @@ static int igb_open(struct net_device *netdev) err_req_irq: igb_release_hw_control(adapter); - /* e1000_power_down_phy(adapter); */ + igb_power_down_link(adapter); igb_free_all_rx_resources(adapter); err_setup_rx: igb_free_all_tx_resources(adapter); @@ -5820,7 +5843,9 @@ static int __igb_shutdown(struct pci_dev *pdev, bool *enable_wake) *enable_wake = wufc || adapter->en_mng_pt; if (!*enable_wake) - igb_shutdown_serdes_link_82575(hw); + igb_power_down_link(adapter); + else + igb_power_up_link(adapter); /* Release control of h/w to f/w. If f/w is AMT enabled, this * would have already happened in close and is redundant. */ @@ -5877,8 +5902,6 @@ static int igb_resume(struct pci_dev *pdev) return -ENOMEM; } - /* e1000_power_up_phy(adapter); */ - igb_reset(adapter); /* let the f/w know that the h/w is now under the control of the |