ixgbe: create conversion functions from link_status to bus/speed

This patch cleans up ixgbe_get_bus_info_generic to call some conversion
functions, which are used also in a follow on patch that needs to convert
between the link_status PCIe config values into ixgbe's internal enum
representations.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@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 3f66abc..9bcdeb8 100644 (file)
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
@@ -592,6 +592,36 @@ s32 ixgbe_get_mac_addr_generic(struct ixgbe_hw *hw, u8 *mac_addr)
        return 0;
 }
 
+enum ixgbe_bus_width ixgbe_convert_bus_width(u16 link_status)
+{
+       switch (link_status & IXGBE_PCI_LINK_WIDTH) {
+       case IXGBE_PCI_LINK_WIDTH_1:
+               return ixgbe_bus_width_pcie_x1;
+       case IXGBE_PCI_LINK_WIDTH_2:
+               return ixgbe_bus_width_pcie_x2;
+       case IXGBE_PCI_LINK_WIDTH_4:
+               return ixgbe_bus_width_pcie_x4;
+       case IXGBE_PCI_LINK_WIDTH_8:
+               return ixgbe_bus_width_pcie_x8;
+       default:
+               return ixgbe_bus_width_unknown;
+       }
+}
+
+enum ixgbe_bus_speed ixgbe_convert_bus_speed(u16 link_status)
+{
+       switch (link_status & IXGBE_PCI_LINK_SPEED) {
+       case IXGBE_PCI_LINK_SPEED_2500:
+               return ixgbe_bus_speed_2500;
+       case IXGBE_PCI_LINK_SPEED_5000:
+               return ixgbe_bus_speed_5000;
+       case IXGBE_PCI_LINK_SPEED_8000:
+               return ixgbe_bus_speed_8000;
+       default:
+               return ixgbe_bus_speed_unknown;
+       }
+}
+
 /**
  *  ixgbe_get_bus_info_generic - Generic set PCI bus info
  *  @hw: pointer to hardware structure
@@ -610,38 +640,8 @@ s32 ixgbe_get_bus_info_generic(struct ixgbe_hw *hw)
        pci_read_config_word(adapter->pdev, IXGBE_PCI_LINK_STATUS,
                             &link_status);
 
-       switch (link_status & IXGBE_PCI_LINK_WIDTH) {
-       case IXGBE_PCI_LINK_WIDTH_1:
-               hw->bus.width = ixgbe_bus_width_pcie_x1;
-               break;
-       case IXGBE_PCI_LINK_WIDTH_2:
-               hw->bus.width = ixgbe_bus_width_pcie_x2;
-               break;
-       case IXGBE_PCI_LINK_WIDTH_4:
-               hw->bus.width = ixgbe_bus_width_pcie_x4;
-               break;
-       case IXGBE_PCI_LINK_WIDTH_8:
-               hw->bus.width = ixgbe_bus_width_pcie_x8;
-               break;
-       default:
-               hw->bus.width = ixgbe_bus_width_unknown;
-               break;
-       }
-
-       switch (link_status & IXGBE_PCI_LINK_SPEED) {
-       case IXGBE_PCI_LINK_SPEED_2500:
-               hw->bus.speed = ixgbe_bus_speed_2500;
-               break;
-       case IXGBE_PCI_LINK_SPEED_5000:
-               hw->bus.speed = ixgbe_bus_speed_5000;
-               break;
-       case IXGBE_PCI_LINK_SPEED_8000:
-               hw->bus.speed = ixgbe_bus_speed_8000;
-               break;
-       default:
-               hw->bus.speed = ixgbe_bus_speed_unknown;
-               break;
-       }
+       hw->bus.width = ixgbe_convert_bus_width(link_status);
+       hw->bus.speed = ixgbe_convert_bus_speed(link_status);
 
        mac->ops.set_lan_id(hw);
 

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.h
index bc3948e..22eee38 100644 (file)
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.h
@@ -40,6 +40,8 @@ s32 ixgbe_clear_hw_cntrs_generic(struct ixgbe_hw *hw);
 s32 ixgbe_read_pba_string_generic(struct ixgbe_hw *hw, u8 *pba_num,
                                   u32 pba_num_size);
 s32 ixgbe_get_mac_addr_generic(struct ixgbe_hw *hw, u8 *mac_addr);
+enum ixgbe_bus_width ixgbe_convert_bus_width(u16 link_status);
+enum ixgbe_bus_speed ixgbe_convert_bus_speed(u16 link_status);
 s32 ixgbe_get_bus_info_generic(struct ixgbe_hw *hw);
 void ixgbe_set_lan_id_multi_port_pcie(struct ixgbe_hw *hw);
 s32 ixgbe_stop_adapter_generic(struct ixgbe_hw *hw);