Linux-libre 4.3.2-gnu

1 files changed, 55 insertions, 36 deletions

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c
index 6b87d9634..dd7062fed 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c
@@ -1,7 +1,7 @@
 /*******************************************************************************
 
   Intel 10 Gigabit PCI Express Linux driver
-  Copyright(c) 1999 - 2014 Intel Corporation.
+  Copyright(c) 1999 - 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,
@@ -504,16 +504,12 @@ static enum ixgbe_media_type ixgbe_get_media_type_82599(struct ixgbe_hw *hw)
  **/
 static void ixgbe_stop_mac_link_on_d3_82599(struct ixgbe_hw *hw)
 {
-	u32 autoc2_reg, fwsm;
+	u32 autoc2_reg;
 	u16 ee_ctrl_2 = 0;
 
 	hw->eeprom.ops.read(hw, IXGBE_EEPROM_CTRL_2, &ee_ctrl_2);
 
-	/* Check to see if MNG FW could be enabled */
-	fwsm = IXGBE_READ_REG(hw, IXGBE_FWSM(hw));
-
-	if (((fwsm & IXGBE_FWSM_MODE_MASK) != IXGBE_FWSM_FW_MODE_PT) &&
-	    !hw->wol_enabled &&
+	if (!ixgbe_mng_present(hw) && !hw->wol_enabled &&
 	    ee_ctrl_2 & IXGBE_EEPROM_CCD_BIT) {
 		autoc2_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
 		autoc2_reg |= IXGBE_AUTOC2_LINK_DISABLE_ON_D3_MASK;
@@ -1246,6 +1242,25 @@ mac_reset_top:
 }
 
 /**
+ * ixgbe_fdir_check_cmd_complete - poll to check whether FDIRCMD is complete
+ * @hw: pointer to hardware structure
+ * @fdircmd: current value of FDIRCMD register
+ */
+static s32 ixgbe_fdir_check_cmd_complete(struct ixgbe_hw *hw, u32 *fdircmd)
+{
+	int i;
+
+	for (i = 0; i < IXGBE_FDIRCMD_CMD_POLL; i++) {
+		*fdircmd = IXGBE_READ_REG(hw, IXGBE_FDIRCMD);
+		if (!(*fdircmd & IXGBE_FDIRCMD_CMD_MASK))
+			return 0;
+		udelay(10);
+	}
+
+	return IXGBE_ERR_FDIR_CMD_INCOMPLETE;
+}
+
+/**
  *  ixgbe_reinit_fdir_tables_82599 - Reinitialize Flow Director tables.
  *  @hw: pointer to hardware structure
  **/
@@ -1253,6 +1268,8 @@ s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw)
 {
 	int i;
 	u32 fdirctrl = IXGBE_READ_REG(hw, IXGBE_FDIRCTRL);
+	u32 fdircmd;
+	s32 err;
 
 	fdirctrl &= ~IXGBE_FDIRCTRL_INIT_DONE;
 
@@ -1260,15 +1277,10 @@ s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw)
 	 * Before starting reinitialization process,
 	 * FDIRCMD.CMD must be zero.
 	 */
-	for (i = 0; i < IXGBE_FDIRCMD_CMD_POLL; i++) {
-		if (!(IXGBE_READ_REG(hw, IXGBE_FDIRCMD) &
-		      IXGBE_FDIRCMD_CMD_MASK))
-			break;
-		udelay(10);
-	}
-	if (i >= IXGBE_FDIRCMD_CMD_POLL) {
-		hw_dbg(hw, "Flow Director previous command isn't complete, aborting table re-initialization.\n");
-		return IXGBE_ERR_FDIR_REINIT_FAILED;
+	err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
+	if (err) {
+		hw_dbg(hw, "Flow Director previous command did not complete, aborting table re-initialization.\n");
+		return err;
 	}
 
 	IXGBE_WRITE_REG(hw, IXGBE_FDIRFREE, 0);
@@ -1394,14 +1406,12 @@ s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 fdirctrl)
 	/*
 	 * Continue setup of fdirctrl register bits:
 	 *  Turn perfect match filtering on
-	 *  Report hash in RSS field of Rx wb descriptor
 	 *  Initialize the drop queue
 	 *  Move the flexible bytes to use the ethertype - shift 6 words
 	 *  Set the maximum length per hash bucket to 0xA filters
 	 *  Send interrupt when 64 (0x4 * 16) filters are left
 	 */
 	fdirctrl |= IXGBE_FDIRCTRL_PERFECT_MATCH |
-		    IXGBE_FDIRCTRL_REPORT_STATUS |
 		    (IXGBE_FDIR_DROP_QUEUE << IXGBE_FDIRCTRL_DROP_Q_SHIFT) |
 		    (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT) |
 		    (0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT) |
@@ -1509,20 +1519,28 @@ static u32 ixgbe_atr_compute_sig_hash_82599(union ixgbe_atr_hash_dword input,
  *  @input: unique input dword
  *  @common: compressed common input dword
  *  @queue: queue index to direct traffic to
+ *
+ * Note that the tunnel bit in input must not be set when the hardware
+ * tunneling support does not exist.
  **/
 s32 ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
 					  union ixgbe_atr_hash_dword input,
 					  union ixgbe_atr_hash_dword common,
 					  u8 queue)
 {
-	u64  fdirhashcmd;
-	u32  fdircmd;
+	u64 fdirhashcmd;
+	u8 flow_type;
+	bool tunnel;
+	u32 fdircmd;
 
 	/*
 	 * Get the flow_type in order to program FDIRCMD properly
 	 * lowest 2 bits are FDIRCMD.L4TYPE, third lowest bit is FDIRCMD.IPV6
 	 */
-	switch (input.formatted.flow_type) {
+	tunnel = !!(input.formatted.flow_type & IXGBE_ATR_L4TYPE_TUNNEL_MASK);
+	flow_type = input.formatted.flow_type &
+		    (IXGBE_ATR_L4TYPE_TUNNEL_MASK - 1);
+	switch (flow_type) {
 	case IXGBE_ATR_FLOW_TYPE_TCPV4:
 	case IXGBE_ATR_FLOW_TYPE_UDPV4:
 	case IXGBE_ATR_FLOW_TYPE_SCTPV4:
@@ -1538,8 +1556,10 @@ s32 ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
 	/* configure FDIRCMD register */
 	fdircmd = IXGBE_FDIRCMD_CMD_ADD_FLOW | IXGBE_FDIRCMD_FILTER_UPDATE |
 		  IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN;
-	fdircmd |= input.formatted.flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT;
+	fdircmd |= (u32)flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT;
 	fdircmd |= (u32)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT;
+	if (tunnel)
+		fdircmd |= IXGBE_FDIRCMD_TUNNEL_FILTER;
 
 	/*
 	 * The lower 32-bits of fdirhashcmd is for FDIRHASH, the upper 32-bits
@@ -1760,6 +1780,7 @@ s32 ixgbe_fdir_write_perfect_filter_82599(struct ixgbe_hw *hw,
 					  u16 soft_id, u8 queue)
 {
 	u32 fdirport, fdirvlan, fdirhash, fdircmd;
+	s32 err;
 
 	/* currently IPv6 is not supported, must be programmed with 0 */
 	IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(0),
@@ -1808,6 +1829,11 @@ s32 ixgbe_fdir_write_perfect_filter_82599(struct ixgbe_hw *hw,
 	fdircmd |= (u32)input->formatted.vm_pool << IXGBE_FDIRCMD_VT_POOL_SHIFT;
 
 	IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, fdircmd);
+	err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
+	if (err) {
+		hw_dbg(hw, "Flow Director command did not complete!\n");
+		return err;
+	}
 
 	return 0;
 }
@@ -1817,9 +1843,8 @@ s32 ixgbe_fdir_erase_perfect_filter_82599(struct ixgbe_hw *hw,
 					  u16 soft_id)
 {
 	u32 fdirhash;
-	u32 fdircmd = 0;
-	u32 retry_count;
-	s32 err = 0;
+	u32 fdircmd;
+	s32 err;
 
 	/* configure FDIRHASH register */
 	fdirhash = input->formatted.bkt_hash;
@@ -1832,18 +1857,12 @@ s32 ixgbe_fdir_erase_perfect_filter_82599(struct ixgbe_hw *hw,
 	/* Query if filter is present */
 	IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, IXGBE_FDIRCMD_CMD_QUERY_REM_FILT);
 
-	for (retry_count = 10; retry_count; retry_count--) {
-		/* allow 10us for query to process */
-		udelay(10);
-		/* verify query completed successfully */
-		fdircmd = IXGBE_READ_REG(hw, IXGBE_FDIRCMD);
-		if (!(fdircmd & IXGBE_FDIRCMD_CMD_MASK))
-			break;
+	err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
+	if (err) {
+		hw_dbg(hw, "Flow Director command did not complete!\n");
+		return err;
 	}
 
-	if (!retry_count)
-		err = IXGBE_ERR_FDIR_REINIT_FAILED;
-
 	/* if filter exists in hardware then remove it */
 	if (fdircmd & IXGBE_FDIRCMD_FILTER_VALID) {
 		IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
@@ -1852,7 +1871,7 @@ s32 ixgbe_fdir_erase_perfect_filter_82599(struct ixgbe_hw *hw,
 				IXGBE_FDIRCMD_CMD_REMOVE_FLOW);
 	}
 
-	return err;
+	return 0;
 }
 
 /**