diff options
| author |   Auke Kok <auke-jan.h.kok@intel.com> | 2006-06-27 09:06:45 -0700 |
|---|---|---|
| committer |   Auke Kok <juke-jan.h.kok@intel.com> | 2006-06-27 09:06:45 -0700 |
| commit | 9a53a2029885e0088e9149679215b95d04deb57b (patch) | |
| tree | e81f69cb79cc7f43332184b51c1213a14842dad9 /drivers/net/e1000/e1000_main.c | |
| parent | e1000: small performance tweak by removing double code (diff) | |
| download | linux-dev-9a53a2029885e0088e9149679215b95d04deb57b.tar.xz linux-dev-9a53a2029885e0088e9149679215b95d04deb57b.zip | |
e1000: add smart power down code
Smart Power Down is a power saving feature in newer e1000 hardware. We
disable it because it causes time to link to be long, but make it a
user choice.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Diffstat (limited to 'drivers/net/e1000/e1000_main.c')
| -rw-r--r-- | drivers/net/e1000/e1000_main.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c index 76e36a4fd985..ea18f3085f69 100644 --- a/drivers/net/e1000/e1000_main.c +++ b/drivers/net/e1000/e1000_main.c @@ -607,6 +607,21 @@ e1000_reset(struct e1000_adapter *adapter) e1000_reset_adaptive(&adapter->hw); e1000_phy_get_info(&adapter->hw, &adapter->phy_info); + + if (!adapter->smart_power_down && + (adapter->hw.mac_type == e1000_82571 || + adapter->hw.mac_type == e1000_82572)) { + uint16_t phy_data = 0; + /* speed up time to link by disabling smart power down, ignore + * the return value of this function because there is nothing + * different we would do if it failed */ + e1000_read_phy_reg(&adapter->hw, IGP02E1000_PHY_POWER_MGMT, + &phy_data); + phy_data &= ~IGP02E1000_PM_SPD; + e1000_write_phy_reg(&adapter->hw, IGP02E1000_PHY_POWER_MGMT, + phy_data); + } + if (adapter->en_mng_pt) { manc = E1000_READ_REG(&adapter->hw, MANC); manc |= (E1000_MANC_ARP_EN | E1000_MANC_EN_MNG2HOST); |