ixgbe: Read and set instance id
Read the instance number from EEPROM and save it for later use.
Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
index 11450bd..737443a 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
@@ -682,6 +682,7 @@
void ixgbe_set_lan_id_multi_port_pcie(struct ixgbe_hw *hw)
{
struct ixgbe_bus_info *bus = &hw->bus;
+ u16 ee_ctrl_4;
u32 reg;
reg = IXGBE_READ_REG(hw, IXGBE_STATUS);
@@ -692,6 +693,13 @@
reg = IXGBE_READ_REG(hw, IXGBE_FACTPS(hw));
if (reg & IXGBE_FACTPS_LFS)
bus->func ^= 0x1;
+
+ /* Get MAC instance from EEPROM for configuring CS4227 */
+ if (hw->device_id == IXGBE_DEV_ID_X550EM_A_SFP) {
+ hw->eeprom.ops.read(hw, IXGBE_EEPROM_CTRL_4, &ee_ctrl_4);
+ bus->instance_id = (ee_ctrl_4 & IXGBE_EE_CTRL_4_INST_ID) >>
+ IXGBE_EE_CTRL_4_INST_ID_SHIFT;
+ }
}
/**