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e1000e: conditionally restart autoneg on 82577/8/9 when setting LPLU state

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When setting the Low Power Link Up (LPLU, a.k.a. reverse auto-negotiation)
on 82577/8278/82579, do not restart auto-negotiation if reset of the Phy is
blocked by the Manageability Engine.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Bruce Allan 2011-12-16 00:46:49 +00:00 committed by Jeff Kirsher
parent 7f1557e142
commit 464c85e37e
1 changed files with 3 additions and 1 deletions
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4
drivers/net/ethernet/intel/e1000e/ich8lan.c
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@ -1921,7 +1921,9 @@ static s32 e1000_set_lplu_state_pchlan(struct e1000_hw *hw, bool active)
else
oem_reg &= ~HV_OEM_BITS_LPLU;
oem_reg |= HV_OEM_BITS_RESTART_AN;
if (!e1000_check_reset_block(hw))
oem_reg |= HV_OEM_BITS_RESTART_AN;
ret_val = e1e_wphy(hw, HV_OEM_BITS, oem_reg);
out: