diff options
| author | Matthew Vick <matthew.vick@intel.com> | 2013-02-21 07:32:52 +0400 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2013-04-19 03:40:28 +0400 |
| commit | 87371b9de5becc32af2f9be84008b8a8a424c58a (patch) | |
| tree | 58128b8de909c4fab1d389e70ed81464a4e20822 /drivers/net/ethernet/intel/igb/e1000_82575.c | |
| parent | b980ac18c95f3251038da7a3826370aff05a7434 (diff) | |
| download | linux-87371b9de5becc32af2f9be84008b8a8a424c58a.tar.xz | |
igb: Enable EEE LP advertisement
On EEE-capable devices, query the PHY to determine what the link partner is
advertising.
Signed-off-by: Matthew Vick <matthew.vick@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/igb/e1000_82575.c')
| -rw-r--r-- | drivers/net/ethernet/intel/igb/e1000_82575.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/igb/e1000_82575.c b/drivers/net/ethernet/intel/igb/e1000_82575.c index 9d83058f2075..8ff938d94912 100644 --- a/drivers/net/ethernet/intel/igb/e1000_82575.c +++ b/drivers/net/ethernet/intel/igb/e1000_82575.c @@ -2285,6 +2285,41 @@ out: } /** + * __igb_access_emi_reg - Read/write EMI register + * @hw: pointer to the HW structure + * @addr: EMI address to program + * @data: pointer to value to read/write from/to the EMI address + * @read: boolean flag to indicate read or write + **/ +static s32 __igb_access_emi_reg(struct e1000_hw *hw, u16 address, + u16 *data, bool read) +{ + s32 ret_val = E1000_SUCCESS; + + ret_val = hw->phy.ops.write_reg(hw, E1000_EMIADD, address); + if (ret_val) + return ret_val; + + if (read) + ret_val = hw->phy.ops.read_reg(hw, E1000_EMIDATA, data); + else + ret_val = hw->phy.ops.write_reg(hw, E1000_EMIDATA, *data); + + return ret_val; +} + +/** + * igb_read_emi_reg - Read Extended Management Interface register + * @hw: pointer to the HW structure + * @addr: EMI address to program + * @data: value to be read from the EMI address + **/ +s32 igb_read_emi_reg(struct e1000_hw *hw, u16 addr, u16 *data) +{ + return __igb_access_emi_reg(hw, addr, data, true); +} + +/** * igb_set_eee_i350 - Enable/disable EEE support * @hw: pointer to the HW structure * |