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authorBruce Allan <bruce.w.allan@intel.com>2011-12-16 00:46:49 +0000
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2012-01-26 18:29:08 -0800
commit464c85e37e6b2d2ad4f3bea23a59408c5595db15 (patch)
tree542292cb0bf432b637c6db84ac9bcb558635ec11 /drivers/net
parent7f1557e1422a4cc842af641c6716714751c06865 (diff)
downloadlinux-464c85e37e6b2d2ad4f3bea23a59408c5595db15.tar.bz2
e1000e: conditionally restart autoneg on 82577/8/9 when setting LPLU state
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>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/ethernet/intel/e1000e/ich8lan.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.c b/drivers/net/ethernet/intel/e1000e/ich8lan.c
index d99548ce4da7..6a6e6f6d9e73 100644
--- a/drivers/net/ethernet/intel/e1000e/ich8lan.c
+++ b/drivers/net/ethernet/intel/e1000e/ich8lan.c
@@ -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: