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authorBruce Allan <bruce.w.allan@intel.com>2011-05-13 09:19:48 +0200
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-06-10 05:31:49 +0200
commit99730e4c13c8344b02dd96108945b48d28c14c25 (patch)
tree36ae5f5c6bf0804f45dfb387931f88d11f7bc400 /drivers/net/e1000e/e1000.h
parente1000e: disable far-end loopback mode on ESB2 (diff)
downloadlinux-99730e4c13c8344b02dd96108945b48d28c14c25.tar.xz
linux-99730e4c13c8344b02dd96108945b48d28c14c25.zip
e1000e: 82579 intermittently disabled during S0->Sx
When repeatedly cycling Sx->S0 states with the network cable unplugged, the 82579 PHY may not initialize as expected and may require a full power cycle to recover functionality to the device. Workaround this by testing access of the PHY registers after resuming; if that returns unexpected results toggle the LANPHYPC signal to power cycle the PHY. This is implemented in the new function e1000_resume_workarounds_pchlan() which calls another new function, e1000_toggle_lanphypc_value_ich8lan(), which has been created to reduce code duplication (same functionality required by a previous workaround). Also, e1000e_disable_gig_wol_ich8lan is now e1000_suspend_workarounds_ich8lan to better reflect what it does. 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/e1000e/e1000.h')
-rw-r--r--drivers/net/e1000e/e1000.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/e1000e/e1000.h b/drivers/net/e1000e/e1000.h
index 9549879e66a0..f8cd56a1ade0 100644
--- a/drivers/net/e1000e/e1000.h
+++ b/drivers/net/e1000e/e1000.h
@@ -533,7 +533,8 @@ extern void e1000e_set_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw,
bool state);
extern void e1000e_igp3_phy_powerdown_workaround_ich8lan(struct e1000_hw *hw);
extern void e1000e_gig_downshift_workaround_ich8lan(struct e1000_hw *hw);
-extern void e1000e_disable_gig_wol_ich8lan(struct e1000_hw *hw);
+extern void e1000_suspend_workarounds_ich8lan(struct e1000_hw *hw);
+extern void e1000_resume_workarounds_pchlan(struct e1000_hw *hw);
extern s32 e1000_configure_k1_ich8lan(struct e1000_hw *hw, bool k1_enable);
extern s32 e1000_lv_jumbo_workaround_ich8lan(struct e1000_hw *hw, bool enable);
extern void e1000_copy_rx_addrs_to_phy_ich8lan(struct e1000_hw *hw);