ixgbe: Add x550 SW/FW semaphore support

The X550 hardware will use more bits in the mask, so change
the prototypes to match.  This larger mask will require changes
in callers which use the higher bits. Likewise since X550 will
use different semaphore mask values and will use the lan_id
value.  So save these values in the ixgbe_phy_info struct.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/intel/ixgbe/ixgbe_common.c

@@ -2469,7 +2469,7 @@ static s32 ixgbe_disable_pcie_master(struct ixgbe_hw *hw)
  *  Acquires the SWFW semaphore through the GSSR register for the specified
  *  function (CSR, PHY0, PHY1, EEPROM, Flash)
  **/
-s32 ixgbe_acquire_swfw_sync(struct ixgbe_hw *hw, u16 mask)
+s32 ixgbe_acquire_swfw_sync(struct ixgbe_hw *hw, u32 mask)
 {
 	u32 gssr = 0;
 	u32 swmask = mask;
@@ -2514,7 +2514,7 @@ s32 ixgbe_acquire_swfw_sync(struct ixgbe_hw *hw, u16 mask)
  *  Releases the SWFW semaphore through the GSSR register for the specified
  *  function (CSR, PHY0, PHY1, EEPROM, Flash)
  **/
-void ixgbe_release_swfw_sync(struct ixgbe_hw *hw, u16 mask)
+void ixgbe_release_swfw_sync(struct ixgbe_hw *hw, u32 mask)
 {
 	u32 gssr;
 	u32 swmask = mask;

drivers/net/ethernet/intel/ixgbe/ixgbe_common.h

@@ -84,8 +84,8 @@ s32 ixgbe_fc_enable_generic(struct ixgbe_hw *hw);
 bool ixgbe_device_supports_autoneg_fc(struct ixgbe_hw *hw);
 void ixgbe_fc_autoneg(struct ixgbe_hw *hw);
 
-s32 ixgbe_acquire_swfw_sync(struct ixgbe_hw *hw, u16 mask);
-void ixgbe_release_swfw_sync(struct ixgbe_hw *hw, u16 mask);
+s32 ixgbe_acquire_swfw_sync(struct ixgbe_hw *hw, u32 mask);
+void ixgbe_release_swfw_sync(struct ixgbe_hw *hw, u32 mask);
 s32 ixgbe_get_san_mac_addr_generic(struct ixgbe_hw *hw, u8 *san_mac_addr);
 s32 ixgbe_set_vmdq_generic(struct ixgbe_hw *hw, u32 rar, u32 vmdq);
 s32 ixgbe_set_vmdq_san_mac_generic(struct ixgbe_hw *hw, u32 vmdq);

drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c

@@ -60,6 +60,15 @@ s32 ixgbe_identify_phy_generic(struct ixgbe_hw *hw)
 	u32 phy_addr;
 	u16 ext_ability = 0;
 
+	if (!hw->phy.phy_semaphore_mask) {
+		hw->phy.lan_id = IXGBE_READ_REG(hw, IXGBE_STATUS) &
+				 IXGBE_STATUS_LAN_ID_1;
+		if (hw->phy.lan_id)
+			hw->phy.phy_semaphore_mask = IXGBE_GSSR_PHY1_SM;
+		else
+			hw->phy.phy_semaphore_mask = IXGBE_GSSR_PHY0_SM;
+	}
+
 	if (hw->phy.type == ixgbe_phy_unknown) {
 		for (phy_addr = 0; phy_addr < IXGBE_MAX_PHY_ADDR; phy_addr++) {
 			hw->phy.mdio.prtad = phy_addr;
@@ -315,12 +324,7 @@ s32 ixgbe_read_phy_reg_generic(struct ixgbe_hw *hw, u32 reg_addr,
 			       u32 device_type, u16 *phy_data)
 {
 	s32 status;
-	u16 gssr;
-
-	if (IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_LAN_ID_1)
-		gssr = IXGBE_GSSR_PHY1_SM;
-	else
-		gssr = IXGBE_GSSR_PHY0_SM;
+	u32 gssr = hw->phy.phy_semaphore_mask;
 
 	if (hw->mac.ops.acquire_swfw_sync(hw, gssr) == 0) {
 		status = ixgbe_read_phy_reg_mdi(hw, reg_addr, device_type,
@@ -418,7 +422,7 @@ s32 ixgbe_write_phy_reg_generic(struct ixgbe_hw *hw, u32 reg_addr,
 				u32 device_type, u16 phy_data)
 {
 	s32 status;
-	u16 gssr;
+	u32 gssr;
 
 	if (IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_LAN_ID_1)
 		gssr = IXGBE_GSSR_PHY1_SM;
@@ -1469,15 +1473,10 @@ s32 ixgbe_read_i2c_byte_generic(struct ixgbe_hw *hw, u8 byte_offset,
 	s32 status;
 	u32 max_retry = 10;
 	u32 retry = 0;
-	u16 swfw_mask = 0;
+	u32 swfw_mask = hw->phy.phy_semaphore_mask;
 	bool nack = true;
 	*data = 0;
 
-	if (IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_LAN_ID_1)
-		swfw_mask = IXGBE_GSSR_PHY1_SM;
-	else
-		swfw_mask = IXGBE_GSSR_PHY0_SM;
-
 	do {
 		if (hw->mac.ops.acquire_swfw_sync(hw, swfw_mask))
 			return IXGBE_ERR_SWFW_SYNC;
@@ -1555,12 +1554,7 @@ s32 ixgbe_write_i2c_byte_generic(struct ixgbe_hw *hw, u8 byte_offset,
 	s32 status;
 	u32 max_retry = 1;
 	u32 retry = 0;
-	u16 swfw_mask = 0;
-
-	if (IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_LAN_ID_1)
-		swfw_mask = IXGBE_GSSR_PHY1_SM;
-	else
-		swfw_mask = IXGBE_GSSR_PHY0_SM;
+	u32 swfw_mask = hw->phy.phy_semaphore_mask;
 
 	if (hw->mac.ops.acquire_swfw_sync(hw, swfw_mask))
 		return IXGBE_ERR_SWFW_SYNC;

drivers/net/ethernet/intel/ixgbe/ixgbe_type.h

@@ -2893,8 +2893,8 @@ struct ixgbe_mac_operations {
 	s32 (*disable_rx_buff)(struct ixgbe_hw *);
 	s32 (*enable_rx_buff)(struct ixgbe_hw *);
 	s32 (*enable_rx_dma)(struct ixgbe_hw *, u32);
-	s32 (*acquire_swfw_sync)(struct ixgbe_hw *, u16);
-	void (*release_swfw_sync)(struct ixgbe_hw *, u16);
+	s32 (*acquire_swfw_sync)(struct ixgbe_hw *, u32);
+	void (*release_swfw_sync)(struct ixgbe_hw *, u32);
 	s32 (*prot_autoc_read)(struct ixgbe_hw *, bool *, u32 *);
 	s32 (*prot_autoc_write)(struct ixgbe_hw *, u32, bool);
 
@@ -3012,6 +3012,8 @@ struct ixgbe_phy_info {
 	bool                            sfp_setup_needed;
 	u32                             revision;
 	enum ixgbe_media_type           media_type;
+	u8				lan_id;
+	u32				phy_semaphore_mask;
 	bool                            reset_disable;
 	ixgbe_autoneg_advertised        autoneg_advertised;
 	enum ixgbe_smart_speed          smart_speed;

drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c

@@ -42,8 +42,8 @@
 
 static s32 ixgbe_update_flash_X540(struct ixgbe_hw *hw);
 static s32 ixgbe_poll_flash_update_done_X540(struct ixgbe_hw *hw);
-static s32 ixgbe_acquire_swfw_sync_X540(struct ixgbe_hw *hw, u16 mask);
-static void ixgbe_release_swfw_sync_X540(struct ixgbe_hw *hw, u16 mask);
+static s32 ixgbe_acquire_swfw_sync_X540(struct ixgbe_hw *hw, u32 mask);
+static void ixgbe_release_swfw_sync_X540(struct ixgbe_hw *hw, u32 mask);
 static s32 ixgbe_get_swfw_sync_semaphore(struct ixgbe_hw *hw);
 static void ixgbe_release_swfw_sync_semaphore(struct ixgbe_hw *hw);
 
@@ -544,7 +544,7 @@ static s32 ixgbe_poll_flash_update_done_X540(struct ixgbe_hw *hw)
  * Acquires the SWFW semaphore thought the SW_FW_SYNC register for
  * the specified function (CSR, PHY0, PHY1, NVM, Flash)
  **/
-static s32 ixgbe_acquire_swfw_sync_X540(struct ixgbe_hw *hw, u16 mask)
+static s32 ixgbe_acquire_swfw_sync_X540(struct ixgbe_hw *hw, u32 mask)
 {
 	u32 swfw_sync;
 	u32 swmask = mask;
@@ -612,7 +612,7 @@ static s32 ixgbe_acquire_swfw_sync_X540(struct ixgbe_hw *hw, u16 mask)
  * Releases the SWFW semaphore through the SW_FW_SYNC register
  * for the specified function (CSR, PHY0, PHY1, EVM, Flash)
  **/
-static void ixgbe_release_swfw_sync_X540(struct ixgbe_hw *hw, u16 mask)
+static void ixgbe_release_swfw_sync_X540(struct ixgbe_hw *hw, u32 mask)
 {
 	u32 swfw_sync;
 	u32 swmask = mask;