From f4d2dd4cd4d001f5dc20fc76c780c0c20c000c23 Mon Sep 17 00:00:00 2001
From: Bruce Allan <bruce.w.allan@intel.com>
Date: Wed, 13 Jan 2010 02:05:18 +0000
Subject: [PATCH] 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>
---
drivers/net/e1000e/82571.c | 7 ++++++
drivers/net/e1000e/e1000.h | 2 ++
drivers/net/e1000e/es2lan.c | 4 +++
drivers/net/e1000e/hw.h | 1 +
drivers/net/e1000e/ich8lan.c | 1 +
drivers/net/e1000e/lib.c | 48 +++++++++++++++++++++++++++---------
6 files changed, 52 insertions(+), 11 deletions(-)
diff --git a/drivers/net/e1000e/82571.c b/drivers/net/e1000e/82571.c
index d1a45143c2aa..7674a91824bc 100644
--- a/drivers/net/e1000e/82571.c
+++ b/drivers/net/e1000e/82571.c
@@ -267,8 +267,14 @@ static s32 e1000_init_mac_params_82571(struct e1000_adapter *adapter)
}
switch (hw->mac.type) {
+ case e1000_82573:
+ func->set_lan_id = e1000_set_lan_id_single_port;
+ func->check_mng_mode = e1000e_check_mng_mode_generic;
+ func->led_on = e1000e_led_on_generic;
+ break;
case e1000_82574:
case e1000_82583:
+ func->set_lan_id = e1000_set_lan_id_single_port;
func->check_mng_mode = e1000_check_mng_mode_82574;
func->led_on = e1000_led_on_82574;
break;
@@ -1721,6 +1727,7 @@ static struct e1000_mac_operations e82571_mac_ops = {
.cleanup_led = e1000e_cleanup_led_generic,
.clear_hw_cntrs = e1000_clear_hw_cntrs_82571,
.get_bus_info = e1000e_get_bus_info_pcie,
+ .set_lan_id = e1000_set_lan_id_multi_port_pcie,
/* .get_link_up_info: media type dependent */
/* .led_on: mac type dependent */
.led_off = e1000e_led_off_generic,
diff --git a/drivers/net/e1000e/e1000.h b/drivers/net/e1000e/e1000.h
index 7c91e4bdd361..8b311ce0400e 100644
--- a/drivers/net/e1000e/e1000.h
+++ b/drivers/net/e1000e/e1000.h
@@ -502,6 +502,8 @@ extern s32 e1000e_cleanup_led_generic(struct e1000_hw *hw);
extern s32 e1000e_led_on_generic(struct e1000_hw *hw);
extern s32 e1000e_led_off_generic(struct e1000_hw *hw);
extern s32 e1000e_get_bus_info_pcie(struct e1000_hw *hw);
+extern void e1000_set_lan_id_multi_port_pcie(struct e1000_hw *hw);
+extern void e1000_set_lan_id_single_port(struct e1000_hw *hw);
extern s32 e1000e_get_speed_and_duplex_copper(struct e1000_hw *hw, u16 *speed, u16 *duplex);
extern s32 e1000e_get_speed_and_duplex_fiber_serdes(struct e1000_hw *hw, u16 *speed, u16 *duplex);
extern s32 e1000e_disable_pcie_master(struct e1000_hw *hw);
diff --git a/drivers/net/e1000e/es2lan.c b/drivers/net/e1000e/es2lan.c
index 4bb9d88ad976..27d21589a69a 100644
--- a/drivers/net/e1000e/es2lan.c
+++ b/drivers/net/e1000e/es2lan.c
@@ -246,6 +246,9 @@ static s32 e1000_init_mac_params_80003es2lan(struct e1000_adapter *adapter)
break;
}
+ /* set lan id for port to determine which phy lock to use */
+ hw->mac.ops.set_lan_id(hw);
+
return 0;
}
@@ -1435,6 +1438,7 @@ static struct e1000_mac_operations es2_mac_ops = {
.cleanup_led = e1000e_cleanup_led_generic,
.clear_hw_cntrs = e1000_clear_hw_cntrs_80003es2lan,
.get_bus_info = e1000e_get_bus_info_pcie,
+ .set_lan_id = e1000_set_lan_id_multi_port_pcie,
.get_link_up_info = e1000_get_link_up_info_80003es2lan,
.led_on = e1000e_led_on_generic,
.led_off = e1000e_led_off_generic,
diff --git a/drivers/net/e1000e/hw.h b/drivers/net/e1000e/hw.h
index 127e6a226da1..9cac5d9b94b8 100644
--- a/drivers/net/e1000e/hw.h
+++ b/drivers/net/e1000e/hw.h
@@ -749,6 +749,7 @@ struct e1000_mac_operations {
void (*clear_hw_cntrs)(struct e1000_hw *);
void (*clear_vfta)(struct e1000_hw *);
s32 (*get_bus_info)(struct e1000_hw *);
+ void (*set_lan_id)(struct e1000_hw *);
s32 (*get_link_up_info)(struct e1000_hw *, u16 *, u16 *);
s32 (*led_on)(struct e1000_hw *);
s32 (*led_off)(struct e1000_hw *);
diff --git a/drivers/net/e1000e/ich8lan.c b/drivers/net/e1000e/ich8lan.c
index ad08cf3f40c0..061cd100aac2 100644
--- a/drivers/net/e1000e/ich8lan.c
+++ b/drivers/net/e1000e/ich8lan.c
@@ -3302,6 +3302,7 @@ static struct e1000_mac_operations ich8_mac_ops = {
/* cleanup_led dependent on mac type */
.clear_hw_cntrs = e1000_clear_hw_cntrs_ich8lan,
.get_bus_info = e1000_get_bus_info_ich8lan,
+ .set_lan_id = e1000_set_lan_id_single_port,
.get_link_up_info = e1000_get_link_up_info_ich8lan,
/* led_on dependent on mac type */
/* led_off dependent on mac type */
diff --git a/drivers/net/e1000e/lib.c b/drivers/net/e1000e/lib.c
index 547542428edc..5f6b17148d34 100644
--- a/drivers/net/e1000e/lib.c
+++ b/drivers/net/e1000e/lib.c
@@ -51,10 +51,10 @@ enum e1000_mng_mode {
**/
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) {
@@ -68,19 +68,45 @@ s32 e1000e_get_bus_info_pcie(struct e1000_hw *hw)
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
--
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