ixgbe: add new media type.

This patch adds support for a new media type fiber_fixed.  This is useful
to avoid all the SFP+ hot plug support path on devices who's fix fiber need
not worry about such things.  This patch is needed for a following patch
that adds support for "fiber_fixed" devices.

v2: cleaned up logging message based on feedback from David Miller

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

1 files changed, 86 insertions, 7 deletions

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c
index 0b82d38bc97d..9d627fd3dd19 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c
@@ -527,6 +527,75 @@ static void ixgbe_flap_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
 }
 
 /**
+ *  ixgbe_set_fiber_fixed_speed - Set module link speed for fixed fiber
+ *  @hw: pointer to hardware structure
+ *  @speed: link speed to set
+ *
+ *  We set the module speed differently for fixed fiber.  For other
+ *  multi-speed devices we don't have an error value so here if we
+ *  detect an error we just log it and exit.
+ */
+static void ixgbe_set_fiber_fixed_speed(struct ixgbe_hw *hw,
+					ixgbe_link_speed speed)
+{
+	s32 status;
+	u8 rs, eeprom_data;
+
+	switch (speed) {
+	case IXGBE_LINK_SPEED_10GB_FULL:
+		/* one bit mask same as setting on */
+		rs = IXGBE_SFF_SOFT_RS_SELECT_10G;
+		break;
+	case IXGBE_LINK_SPEED_1GB_FULL:
+		rs = IXGBE_SFF_SOFT_RS_SELECT_1G;
+		break;
+	default:
+		hw_dbg(hw, "Invalid fixed module speed\n");
+		return;
+	}
+
+	/* Set RS0 */
+	status = hw->phy.ops.read_i2c_byte(hw, IXGBE_SFF_SFF_8472_OSCB,
+					   IXGBE_I2C_EEPROM_DEV_ADDR2,
+					   &eeprom_data);
+	if (status) {
+		hw_dbg(hw, "Failed to read Rx Rate Select RS0\n");
+		goto out;
+	}
+
+	eeprom_data = (eeprom_data & ~IXGBE_SFF_SOFT_RS_SELECT_MASK) & rs;
+
+	status = hw->phy.ops.write_i2c_byte(hw, IXGBE_SFF_SFF_8472_OSCB,
+					    IXGBE_I2C_EEPROM_DEV_ADDR2,
+					    eeprom_data);
+	if (status) {
+		hw_dbg(hw, "Failed to write Rx Rate Select RS0\n");
+		goto out;
+	}
+
+	/* Set RS1 */
+	status = hw->phy.ops.read_i2c_byte(hw, IXGBE_SFF_SFF_8472_ESCB,
+					   IXGBE_I2C_EEPROM_DEV_ADDR2,
+					   &eeprom_data);
+	if (status) {
+		hw_dbg(hw, "Failed to read Rx Rate Select RS1\n");
+		goto out;
+	}
+
+	eeprom_data = (eeprom_data & ~IXGBE_SFF_SOFT_RS_SELECT_MASK) & rs;
+
+	status = hw->phy.ops.write_i2c_byte(hw, IXGBE_SFF_SFF_8472_ESCB,
+					    IXGBE_I2C_EEPROM_DEV_ADDR2,
+					    eeprom_data);
+	if (status) {
+		hw_dbg(hw, "Failed to write Rx Rate Select RS1\n");
+		goto out;
+	}
+out:
+	return;
+}
+
+/**
  *  ixgbe_setup_mac_link_multispeed_fiber - Set MAC link speed
  *  @hw: pointer to hardware structure
  *  @speed: new link speed
@@ -573,9 +642,14 @@ static s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw,
 			goto out;
 
 		/* Set the module link speed */
-		esdp_reg |= (IXGBE_ESDP_SDP5_DIR | IXGBE_ESDP_SDP5);
-		IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
-		IXGBE_WRITE_FLUSH(hw);
+		if (hw->phy.media_type == ixgbe_media_type_fiber_fixed) {
+			ixgbe_set_fiber_fixed_speed(hw,
+					IXGBE_LINK_SPEED_10GB_FULL);
+		} else {
+			esdp_reg |= (IXGBE_ESDP_SDP5_DIR | IXGBE_ESDP_SDP5);
+			IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
+			IXGBE_WRITE_FLUSH(hw);
+		}
 
 		/* Allow module to change analog characteristics (1G->10G) */
 		msleep(40);
@@ -625,10 +699,15 @@ static s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw,
 			goto out;
 
 		/* Set the module link speed */
-		esdp_reg &= ~IXGBE_ESDP_SDP5;
-		esdp_reg |= IXGBE_ESDP_SDP5_DIR;
-		IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
-		IXGBE_WRITE_FLUSH(hw);
+		if (hw->phy.media_type == ixgbe_media_type_fiber_fixed) {
+			ixgbe_set_fiber_fixed_speed(hw,
+						IXGBE_LINK_SPEED_1GB_FULL);
+		} else {
+			esdp_reg &= ~IXGBE_ESDP_SDP5;
+			esdp_reg |= IXGBE_ESDP_SDP5_DIR;
+			IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
+			IXGBE_WRITE_FLUSH(hw);
+		}
 
 		/* Allow module to change analog characteristics (10G->1G) */
 		msleep(40);