e1000e: add support for 82577/82578 GbE LOM parts

This patch provides support for the next generation Intel desktop
and mobile gigabit ethernet LOM adapters.  These adapters are the
follow-on parts to the LOMs tied to the prior ICH chipsets and are
comprised of a MAC in the PCH chipset and an external PHY (82577 for
mobile and 82578 for desktop versions).  New features consist of PHY
wakeup to save power by completely turning off the MAC while in Sx
state, and 4K jumbo frames.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 38 insertions, 0 deletions

diff --git a/drivers/net/e1000e/lib.c b/drivers/net/e1000e/lib.c
index 18a4f5902f3b..be6d9e990374 100644
--- a/drivers/net/e1000e/lib.c
+++ b/drivers/net/e1000e/lib.c
@@ -378,6 +378,12 @@ s32 e1000e_check_for_copper_link(struct e1000_hw *hw)
 
         mac->get_link_status = 0;
 
+        if (hw->phy.type == e1000_phy_82578) {
+                ret_val = e1000_link_stall_workaround_hv(hw);
+                if (ret_val)
+                        return ret_val;
+        }
+
         /*
          * Check if there was DownShift, must be checked
          * immediately after link-up
@@ -1406,6 +1412,38 @@ s32 e1000e_id_led_init(struct e1000_hw *hw)
 }
 
 /**
+ *  e1000e_setup_led_generic - Configures SW controllable LED
+ *  @hw: pointer to the HW structure
+ *
+ *  This prepares the SW controllable LED for use and saves the current state
+ *  of the LED so it can be later restored.
+ **/
+s32 e1000e_setup_led_generic(struct e1000_hw *hw)
+{
+        u32 ledctl;
+
+        if (hw->mac.ops.setup_led != e1000e_setup_led_generic) {
+                return -E1000_ERR_CONFIG;
+        }
+
+        if (hw->phy.media_type == e1000_media_type_fiber) {
+                ledctl = er32(LEDCTL);
+                hw->mac.ledctl_default = ledctl;
+                /* Turn off LED0 */
+                ledctl &= ~(E1000_LEDCTL_LED0_IVRT |
+                            E1000_LEDCTL_LED0_BLINK |
+                            E1000_LEDCTL_LED0_MODE_MASK);
+                ledctl |= (E1000_LEDCTL_MODE_LED_OFF <<
+                           E1000_LEDCTL_LED0_MODE_SHIFT);
+                ew32(LEDCTL, ledctl);
+        } else if (hw->phy.media_type == e1000_media_type_copper) {
+                ew32(LEDCTL, hw->mac.ledctl_mode1);
+        }
+
+        return 0;
+}
+
+/**
  *  e1000e_cleanup_led_generic - Set LED config to default operation
  *  @hw: pointer to the HW structure
  *