These changes are the raw update to linux-4.4.6-rt14. Kernel sources

are taken from kernel.org, and rt patch from the rt wiki download page.

During the rebasing, the following patch collided:

Force tick interrupt and get rid of softirq magic(I70131fb85).

Collisions have been removed because its logic was found on the
source already.

Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>

1 files changed, 38 insertions, 12 deletions

diff --git a/kernel/drivers/net/ethernet/intel/igb/e1000_82575.c b/kernel/drivers/net/ethernet/intel/igb/e1000_82575.c
index 0f69ef817..7a73510e5 100644
--- a/kernel/drivers/net/ethernet/intel/igb/e1000_82575.c
+++ b/kernel/drivers/net/ethernet/intel/igb/e1000_82575.c
@@ -1,5 +1,5 @@
 /* Intel(R) Gigabit Ethernet Linux driver
- * Copyright(c) 2007-2014 Intel Corporation.
+ * Copyright(c) 2007-2015 Intel Corporation.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
@@ -139,10 +139,6 @@ static s32 igb_check_for_link_media_swap(struct e1000_hw *hw)
 	if (ret_val)
 		return ret_val;
 
-	/* reset page to 0 */
-	ret_val = phy->ops.write_reg(hw, E1000_M88E1112_PAGE_ADDR, 0);
-	if (ret_val)
-		return ret_val;
 
 	if (data & E1000_M88E1112_STATUS_LINK)
 		port = E1000_MEDIA_PORT_OTHER;
@@ -151,8 +147,20 @@ static s32 igb_check_for_link_media_swap(struct e1000_hw *hw)
 	if (port && (hw->dev_spec._82575.media_port != port)) {
 		hw->dev_spec._82575.media_port = port;
 		hw->dev_spec._82575.media_changed = true;
+	}
+
+	if (port == E1000_MEDIA_PORT_COPPER) {
+		/* reset page to 0 */
+		ret_val = phy->ops.write_reg(hw, E1000_M88E1112_PAGE_ADDR, 0);
+		if (ret_val)
+			return ret_val;
+		igb_check_for_link_82575(hw);
 	} else {
-		ret_val = igb_check_for_link_82575(hw);
+		igb_check_for_link_82575(hw);
+		/* reset page to 0 */
+		ret_val = phy->ops.write_reg(hw, E1000_M88E1112_PAGE_ADDR, 0);
+		if (ret_val)
+			return ret_val;
 	}
 
 	return 0;
@@ -223,6 +231,7 @@ static s32 igb_init_phy_params_82575(struct e1000_hw *hw)
 	/* Verify phy id and set remaining function pointers */
 	switch (phy->id) {
 	case M88E1543_E_PHY_ID:
+	case M88E1512_E_PHY_ID:
 	case I347AT4_E_PHY_ID:
 	case M88E1112_E_PHY_ID:
 	case M88E1111_I_PHY_ID:
@@ -235,7 +244,7 @@ static s32 igb_init_phy_params_82575(struct e1000_hw *hw)
 		else
 			phy->ops.get_cable_length = igb_get_cable_length_m88;
 		phy->ops.force_speed_duplex = igb_phy_force_speed_duplex_m88;
-		/* Check if this PHY is confgured for media swap. */
+		/* Check if this PHY is configured for media swap. */
 		if (phy->id == M88E1112_E_PHY_ID) {
 			u16 data;
 
@@ -258,6 +267,11 @@ static s32 igb_init_phy_params_82575(struct e1000_hw *hw)
 				hw->mac.ops.check_for_link =
 						igb_check_for_link_media_swap;
 		}
+		if (phy->id == M88E1512_E_PHY_ID) {
+			ret_val = igb_initialize_M88E1512_phy(hw);
+			if (ret_val)
+				goto out;
+		}
 		break;
 	case IGP03E1000_E_PHY_ID:
 		phy->type = e1000_phy_igp_3;
@@ -889,6 +903,7 @@ out:
  **/
 static s32 igb_phy_hw_reset_sgmii_82575(struct e1000_hw *hw)
 {
+	struct e1000_phy_info *phy = &hw->phy;
 	s32 ret_val;
 
 	/* This isn't a true "hard" reset, but is the only reset
@@ -905,7 +920,11 @@ static s32 igb_phy_hw_reset_sgmii_82575(struct e1000_hw *hw)
 		goto out;
 
 	ret_val = igb_phy_sw_reset(hw);
+	if (ret_val)
+		goto out;
 
+	if (phy->id == M88E1512_E_PHY_ID)
+		ret_val = igb_initialize_M88E1512_phy(hw);
 out:
 	return ret_val;
 }
@@ -1579,6 +1598,7 @@ static s32 igb_setup_copper_link_82575(struct e1000_hw *hw)
 		case I347AT4_E_PHY_ID:
 		case M88E1112_E_PHY_ID:
 		case M88E1543_E_PHY_ID:
+		case M88E1512_E_PHY_ID:
 		case I210_I_PHY_ID:
 			ret_val = igb_copper_link_setup_m88_gen2(hw);
 			break;
@@ -1900,8 +1920,8 @@ static void igb_clear_hw_cntrs_82575(struct e1000_hw *hw)
  *  igb_rx_fifo_flush_82575 - Clean rx fifo after RX enable
  *  @hw: pointer to the HW structure
  *
- *  After rx enable if managability is enabled then there is likely some
- *  bad data at the start of the fifo and possibly in the DMA fifo.  This
+ *  After rx enable if manageability is enabled then there is likely some
+ *  bad data at the start of the fifo and possibly in the DMA fifo. This
  *  function clears the fifos and flushes any packets that came in as rx was
  *  being enabled.
  **/
@@ -1910,6 +1930,11 @@ void igb_rx_fifo_flush_82575(struct e1000_hw *hw)
 	u32 rctl, rlpml, rxdctl[4], rfctl, temp_rctl, rx_enabled;
 	int i, ms_wait;
 
+	/* disable IPv6 options as per hardware errata */
+	rfctl = rd32(E1000_RFCTL);
+	rfctl |= E1000_RFCTL_IPV6_EX_DIS;
+	wr32(E1000_RFCTL, rfctl);
+
 	if (hw->mac.type != e1000_82575 ||
 	    !(rd32(E1000_MANC) & E1000_MANC_RCV_TCO_EN))
 		return;
@@ -1937,7 +1962,6 @@ void igb_rx_fifo_flush_82575(struct e1000_hw *hw)
 	 * incoming packets are rejected.  Set enable and wait 2ms so that
 	 * any packet that was coming in as RCTL.EN was set is flushed
 	 */
-	rfctl = rd32(E1000_RFCTL);
 	wr32(E1000_RFCTL, rfctl & ~E1000_RFCTL_LEF);
 
 	rlpml = rd32(E1000_RLPML);
@@ -2617,7 +2641,8 @@ s32 igb_set_eee_i354(struct e1000_hw *hw, bool adv1G, bool adv100M)
 	u16 phy_data;
 
 	if ((hw->phy.media_type != e1000_media_type_copper) ||
-	    (phy->id != M88E1543_E_PHY_ID))
+	    ((phy->id != M88E1543_E_PHY_ID) &&
+	     (phy->id != M88E1512_E_PHY_ID)))
 		goto out;
 
 	if (!hw->dev_spec._82575.eee_disable) {
@@ -2697,7 +2722,8 @@ s32 igb_get_eee_status_i354(struct e1000_hw *hw, bool *status)
 
 	/* Check if EEE is supported on this device. */
 	if ((hw->phy.media_type != e1000_media_type_copper) ||
-	    (phy->id != M88E1543_E_PHY_ID))
+	    ((phy->id != M88E1543_E_PHY_ID) &&
+	     (phy->id != M88E1512_E_PHY_ID)))
 		goto out;
 
 	ret_val = igb_read_xmdio_reg(hw, E1000_PCS_STATUS_ADDR_I354,