Imported Upstream version 16.07.2

Change-Id: I76bc313e0942233ce259612069ded302dd6c87bb
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>

1 files changed, 64 insertions, 49 deletions

diff --git a/drivers/net/ixgbe/base/ixgbe_common.c b/drivers/net/ixgbe/base/ixgbe_common.c
index 811875a4..1c5cb913 100644
--- a/drivers/net/ixgbe/base/ixgbe_common.c
+++ b/drivers/net/ixgbe/base/ixgbe_common.c
@@ -3967,7 +3967,7 @@ s32 ixgbe_set_vlvf_generic(struct ixgbe_hw *hw, u32 vlan, u32 vind,
 		 * we run the risk of stray packets leaking into
 		 * the PF via the default pool
 		 */
-		if (vfta_delta)
+		if (*vfta_delta)
 			IXGBE_WRITE_REG(hw, IXGBE_VFTA(vlan / 32), vfta);
 
 		/* disable VLVF and clear remaining bit from pool */
@@ -4318,43 +4318,31 @@ u8 ixgbe_calculate_checksum(u8 *buffer, u32 length)
 }
 
 /**
- *  ixgbe_host_interface_command - Issue command to manageability block
+ *  ixgbe_hic_unlocked - Issue command to manageability block unlocked
  *  @hw: pointer to the HW structure
- *  @buffer: contains the command to write and where the return status will
- *   be placed
+ *  @buffer: command to write and where the return status will be placed
  *  @length: length of buffer, must be multiple of 4 bytes
  *  @timeout: time in ms to wait for command completion
- *  @return_data: read and return data from the buffer (true) or not (false)
- *   Needed because FW structures are big endian and decoding of
- *   these fields can be 8 bit or 16 bit based on command. Decoding
- *   is not easily understood without making a table of commands.
- *   So we will leave this up to the caller to read back the data
- *   in these cases.
  *
  *  Communicates with the manageability block. On success return IXGBE_SUCCESS
  *  else returns semaphore error when encountering an error acquiring
  *  semaphore or IXGBE_ERR_HOST_INTERFACE_COMMAND when command fails.
+ *
+ *  This function assumes that the IXGBE_GSSR_SW_MNG_SM semaphore is held
+ *  by the caller.
  **/
-s32 ixgbe_host_interface_command(struct ixgbe_hw *hw, u32 *buffer,
-				 u32 length, u32 timeout, bool return_data)
+s32 ixgbe_hic_unlocked(struct ixgbe_hw *hw, u32 *buffer, u32 length,
+		       u32 timeout)
 {
-	u32 hicr, i, bi, fwsts;
-	u32 hdr_size = sizeof(struct ixgbe_hic_hdr);
-	u16 buf_len;
+	u32 hicr, i, fwsts;
 	u16 dword_len;
-	s32 status;
 
-	DEBUGFUNC("ixgbe_host_interface_command");
+	DEBUGFUNC("ixgbe_hic_unlocked");
 
-	if (length == 0 || length > IXGBE_HI_MAX_BLOCK_BYTE_LENGTH) {
+	if (!length || length > IXGBE_HI_MAX_BLOCK_BYTE_LENGTH) {
 		DEBUGOUT1("Buffer length failure buffersize=%d.\n", length);
 		return IXGBE_ERR_HOST_INTERFACE_COMMAND;
 	}
-	/* Take management host interface semaphore */
-	status = hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_SW_MNG_SM);
-
-	if (status)
-		return status;
 
 	/* Set bit 9 of FWSTS clearing FW reset indication */
 	fwsts = IXGBE_READ_REG(hw, IXGBE_FWSTS);
@@ -4362,17 +4350,15 @@ s32 ixgbe_host_interface_command(struct ixgbe_hw *hw, u32 *buffer,
 
 	/* Check that the host interface is enabled. */
 	hicr = IXGBE_READ_REG(hw, IXGBE_HICR);
-	if ((hicr & IXGBE_HICR_EN) == 0) {
+	if (!(hicr & IXGBE_HICR_EN)) {
 		DEBUGOUT("IXGBE_HOST_EN bit disabled.\n");
-		status = IXGBE_ERR_HOST_INTERFACE_COMMAND;
-		goto rel_out;
+		return IXGBE_ERR_HOST_INTERFACE_COMMAND;
 	}
 
 	/* Calculate length in DWORDs. We must be DWORD aligned */
-	if ((length % (sizeof(u32))) != 0) {
+	if (length % sizeof(u32)) {
 		DEBUGOUT("Buffer length failure, not aligned to dword");
-		status = IXGBE_ERR_INVALID_ARGUMENT;
-		goto rel_out;
+		return IXGBE_ERR_INVALID_ARGUMENT;
 	}
 
 	dword_len = length >> 2;
@@ -4395,14 +4381,59 @@ s32 ixgbe_host_interface_command(struct ixgbe_hw *hw, u32 *buffer,
 	}
 
 	/* Check command completion */
-	if ((timeout != 0 && i == timeout) ||
+	if ((timeout && i == timeout) ||
 	    !(IXGBE_READ_REG(hw, IXGBE_HICR) & IXGBE_HICR_SV)) {
 		ERROR_REPORT1(IXGBE_ERROR_CAUTION,
 			     "Command has failed with no status valid.\n");
-		status = IXGBE_ERR_HOST_INTERFACE_COMMAND;
-		goto rel_out;
+		return IXGBE_ERR_HOST_INTERFACE_COMMAND;
 	}
 
+	return IXGBE_SUCCESS;
+}
+
+/**
+ *  ixgbe_host_interface_command - Issue command to manageability block
+ *  @hw: pointer to the HW structure
+ *  @buffer: contains the command to write and where the return status will
+ *   be placed
+ *  @length: length of buffer, must be multiple of 4 bytes
+ *  @timeout: time in ms to wait for command completion
+ *  @return_data: read and return data from the buffer (true) or not (false)
+ *   Needed because FW structures are big endian and decoding of
+ *   these fields can be 8 bit or 16 bit based on command. Decoding
+ *   is not easily understood without making a table of commands.
+ *   So we will leave this up to the caller to read back the data
+ *   in these cases.
+ *
+ *  Communicates with the manageability block. On success return IXGBE_SUCCESS
+ *  else returns semaphore error when encountering an error acquiring
+ *  semaphore or IXGBE_ERR_HOST_INTERFACE_COMMAND when command fails.
+ **/
+s32 ixgbe_host_interface_command(struct ixgbe_hw *hw, u32 *buffer,
+				 u32 length, u32 timeout, bool return_data)
+{
+	u32 hdr_size = sizeof(struct ixgbe_hic_hdr);
+	u16 dword_len;
+	u16 buf_len;
+	s32 status;
+	u32 bi;
+
+	DEBUGFUNC("ixgbe_host_interface_command");
+
+	if (length == 0 || length > IXGBE_HI_MAX_BLOCK_BYTE_LENGTH) {
+		DEBUGOUT1("Buffer length failure buffersize=%d.\n", length);
+		return IXGBE_ERR_HOST_INTERFACE_COMMAND;
+	}
+
+	/* Take management host interface semaphore */
+	status = hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_SW_MNG_SM);
+	if (status)
+		return status;
+
+	status = ixgbe_hic_unlocked(hw, buffer, length, timeout);
+	if (status)
+		goto rel_out;
+
 	if (!return_data)
 		goto rel_out;
 
@@ -4417,7 +4448,7 @@ s32 ixgbe_host_interface_command(struct ixgbe_hw *hw, u32 *buffer,
 
 	/* If there is any thing in data position pull it in */
 	buf_len = ((struct ixgbe_hic_hdr *)buffer)->buf_len;
-	if (buf_len == 0)
+	if (!buf_len)
 		goto rel_out;
 
 	if (length < buf_len + hdr_size) {
@@ -4923,14 +4954,6 @@ s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw,
 		speedcnt++;
 		highest_link_speed = IXGBE_LINK_SPEED_10GB_FULL;
 
-		/* If we already have link at this speed, just jump out */
-		status = ixgbe_check_link(hw, &link_speed, &link_up, false);
-		if (status != IXGBE_SUCCESS)
-			return status;
-
-		if ((link_speed == IXGBE_LINK_SPEED_10GB_FULL) && link_up)
-			goto out;
-
 		/* Set the module link speed */
 		switch (hw->phy.media_type) {
 		case ixgbe_media_type_fiber:
@@ -4981,14 +5004,6 @@ s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw,
 		if (highest_link_speed == IXGBE_LINK_SPEED_UNKNOWN)
 			highest_link_speed = IXGBE_LINK_SPEED_1GB_FULL;
 
-		/* If we already have link at this speed, just jump out */
-		status = ixgbe_check_link(hw, &link_speed, &link_up, false);
-		if (status != IXGBE_SUCCESS)
-			return status;
-
-		if ((link_speed == IXGBE_LINK_SPEED_1GB_FULL) && link_up)
-			goto out;
-
 		/* Set the module link speed */
 		switch (hw->phy.media_type) {
 		case ixgbe_media_type_fiber: