e1000e: provide MAC-family-specific function to set LAN ID
Provide MAC-specific function pointer to determine the LAN ID (PCI func).
The LAN ID is used internally by the driver to determine which h/w lock
to use to protect accessing the PHY on ESB2 as well as help to determine
the alternate MAC address on some parts.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/e1000e/lib.c b/drivers/net/e1000e/lib.c
index 5475424..5f6b171 100644
--- a/drivers/net/e1000e/lib.c
+++ b/drivers/net/e1000e/lib.c
@@ -51,10 +51,10 @@
**/
s32 e1000e_get_bus_info_pcie(struct e1000_hw *hw)
{
+ struct e1000_mac_info *mac = &hw->mac;
struct e1000_bus_info *bus = &hw->bus;
struct e1000_adapter *adapter = hw->adapter;
- u32 status;
- u16 pcie_link_status, pci_header_type, cap_offset;
+ u16 pcie_link_status, cap_offset;
cap_offset = pci_find_capability(adapter->pdev, PCI_CAP_ID_EXP);
if (!cap_offset) {
@@ -68,20 +68,46 @@
PCIE_LINK_WIDTH_SHIFT);
}
- pci_read_config_word(adapter->pdev, PCI_HEADER_TYPE_REGISTER,
- &pci_header_type);
- if (pci_header_type & PCI_HEADER_TYPE_MULTIFUNC) {
- status = er32(STATUS);
- bus->func = (status & E1000_STATUS_FUNC_MASK)
- >> E1000_STATUS_FUNC_SHIFT;
- } else {
- bus->func = 0;
- }
+ mac->ops.set_lan_id(hw);
return 0;
}
/**
+ * e1000_set_lan_id_multi_port_pcie - Set LAN id for PCIe multiple port devices
+ *
+ * @hw: pointer to the HW structure
+ *
+ * Determines the LAN function id by reading memory-mapped registers
+ * and swaps the port value if requested.
+ **/
+void e1000_set_lan_id_multi_port_pcie(struct e1000_hw *hw)
+{
+ struct e1000_bus_info *bus = &hw->bus;
+ u32 reg;
+
+ /*
+ * The status register reports the correct function number
+ * for the device regardless of function swap state.
+ */
+ reg = er32(STATUS);
+ bus->func = (reg & E1000_STATUS_FUNC_MASK) >> E1000_STATUS_FUNC_SHIFT;
+}
+
+/**
+ * e1000_set_lan_id_single_port - Set LAN id for a single port device
+ * @hw: pointer to the HW structure
+ *
+ * Sets the LAN function id to zero for a single port device.
+ **/
+void e1000_set_lan_id_single_port(struct e1000_hw *hw)
+{
+ struct e1000_bus_info *bus = &hw->bus;
+
+ bus->func = 0;
+}
+
+/**
* e1000_clear_vfta_generic - Clear VLAN filter table
* @hw: pointer to the HW structure
*