1 files changed, 14 insertions, 58 deletions

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c
index 2696c78e9f46..bbfe8c40a784 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c
@@ -94,13 +94,8 @@ static s32 ixgbe_setup_mac_link_X540(struct ixgbe_hw *hw,
 static s32 ixgbe_reset_hw_X540(struct ixgbe_hw *hw)
 {
 	ixgbe_link_speed link_speed;
-	s32 status = 0;
-	u32 ctrl;
-	u32 ctrl_ext;
-	u32 reset_bit;
-	u32 i;
-	u32 autoc;
-	u32 autoc2;
+	s32 status;
+	u32 ctrl, i;
 	bool link_up = false;
 
 	/* Call adapter stop to disable tx/rx and clear interrupts */
@@ -119,53 +114,42 @@ mac_reset_top:
 	 * mng is using it.  If link is down or the flag to force full link
 	 * reset is set, then perform link reset.
 	 */
-	if (hw->force_full_reset) {
-		reset_bit = IXGBE_CTRL_LNK_RST;
-	} else {
+	ctrl = IXGBE_CTRL_LNK_RST;
+	if (!hw->force_full_reset) {
 		hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
-		if (!link_up)
-			reset_bit = IXGBE_CTRL_LNK_RST;
-		else
-			reset_bit = IXGBE_CTRL_RST;
+		if (link_up)
+			ctrl = IXGBE_CTRL_RST;
 	}
 
-	ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
-	IXGBE_WRITE_REG(hw, IXGBE_CTRL, (ctrl | reset_bit));
+	ctrl |= IXGBE_READ_REG(hw, IXGBE_CTRL);
+	IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
 	IXGBE_WRITE_FLUSH(hw);
 
 	/* Poll for reset bit to self-clear indicating reset is complete */
 	for (i = 0; i < 10; i++) {
 		udelay(1);
 		ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
-		if (!(ctrl & reset_bit))
+		if (!(ctrl & IXGBE_CTRL_RST_MASK))
 			break;
 	}
-	if (ctrl & reset_bit) {
+
+	if (ctrl & IXGBE_CTRL_RST_MASK) {
 		status = IXGBE_ERR_RESET_FAILED;
 		hw_dbg(hw, "Reset polling failed to complete.\n");
 	}
 
+	msleep(50);
+
 	/*
 	 * Double resets are required for recovery from certain error
 	 * conditions.  Between resets, it is necessary to stall to allow time
-	 * for any pending HW events to complete.  We use 1usec since that is
-	 * what is needed for ixgbe_disable_pcie_master().  The second reset
-	 * then clears out any effects of those events.
+	 * for any pending HW events to complete.
 	 */
 	if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
 		hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
-		udelay(1);
 		goto mac_reset_top;
 	}
 
-	/* Clear PF Reset Done bit so PF/VF Mail Ops can work */
-	ctrl_ext = IXGBE_READ_REG(hw, IXGBE_CTRL_EXT);
-	ctrl_ext |= IXGBE_CTRL_EXT_PFRSTD;
-	IXGBE_WRITE_REG(hw, IXGBE_CTRL_EXT, ctrl_ext);
-	IXGBE_WRITE_FLUSH(hw);
-
-	msleep(50);
-
 	/* Set the Rx packet buffer size. */
 	IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(0), 384 << IXGBE_RXPBSIZE_SHIFT);
 
@@ -173,31 +157,6 @@ mac_reset_top:
 	hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
 
 	/*
-	 * Store the original AUTOC/AUTOC2 values if they have not been
-	 * stored off yet.  Otherwise restore the stored original
-	 * values since the reset operation sets back to defaults.
-	 */
-	autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
-	autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
-	if (hw->mac.orig_link_settings_stored == false) {
-		hw->mac.orig_autoc = autoc;
-		hw->mac.orig_autoc2 = autoc2;
-		hw->mac.orig_link_settings_stored = true;
-	} else {
-		if (autoc != hw->mac.orig_autoc)
-			IXGBE_WRITE_REG(hw, IXGBE_AUTOC, (hw->mac.orig_autoc |
-			                IXGBE_AUTOC_AN_RESTART));
-
-		if ((autoc2 & IXGBE_AUTOC2_UPPER_MASK) !=
-		    (hw->mac.orig_autoc2 & IXGBE_AUTOC2_UPPER_MASK)) {
-			autoc2 &= ~IXGBE_AUTOC2_UPPER_MASK;
-			autoc2 |= (hw->mac.orig_autoc2 &
-			           IXGBE_AUTOC2_UPPER_MASK);
-			IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2);
-		}
-	}
-
-	/*
 	 * Store MAC address from RAR0, clear receive address registers, and
 	 * clear the multicast table.  Also reset num_rar_entries to 128,
 	 * since we modify this value when programming the SAN MAC address.
@@ -205,9 +164,6 @@ mac_reset_top:
 	hw->mac.num_rar_entries = IXGBE_X540_MAX_TX_QUEUES;
 	hw->mac.ops.init_rx_addrs(hw);
 
-	/* Store the permanent mac address */
-	hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
-
 	/* Store the permanent SAN mac address */
 	hw->mac.ops.get_san_mac_addr(hw, hw->mac.san_addr);