devices/e1000e/mac-3.4-orig.c
author Florian Pose <fp@igh-essen.com>
Tue, 12 Feb 2013 10:32:37 +0100
branchstable-1.5
changeset 2516 3680924f6f87
parent 2491 5e9221a78855
permissions -rw-r--r--
Replaced VM_RESERVED for kernel 3.7.
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/*******************************************************************************
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  Intel PRO/1000 Linux driver
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  Copyright(c) 1999 - 2012 Intel Corporation.
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  This program is free software; you can redistribute it and/or modify it
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  under the terms and conditions of the GNU General Public License,
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  version 2, as published by the Free Software Foundation.
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  This program is distributed in the hope it will be useful, but WITHOUT
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  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
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  more details.
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  You should have received a copy of the GNU General Public License along with
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  this program; if not, write to the Free Software Foundation, Inc.,
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  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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  The full GNU General Public License is included in this distribution in
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  the file called "COPYING".
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  Contact Information:
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  Linux NICS <linux.nics@intel.com>
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  e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
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  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*******************************************************************************/
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#include "e1000.h"
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/**
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 *  e1000e_get_bus_info_pcie - Get PCIe bus information
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 *  @hw: pointer to the HW structure
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 *
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 *  Determines and stores the system bus information for a particular
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 *  network interface.  The following bus information is determined and stored:
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 *  bus speed, bus width, type (PCIe), and PCIe function.
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 **/
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s32 e1000e_get_bus_info_pcie(struct e1000_hw *hw)
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{
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	struct e1000_mac_info *mac = &hw->mac;
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	struct e1000_bus_info *bus = &hw->bus;
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	struct e1000_adapter *adapter = hw->adapter;
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	u16 pcie_link_status, cap_offset;
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	cap_offset = adapter->pdev->pcie_cap;
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	if (!cap_offset) {
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		bus->width = e1000_bus_width_unknown;
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	} else {
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		pci_read_config_word(adapter->pdev,
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				     cap_offset + PCIE_LINK_STATUS,
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				     &pcie_link_status);
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		bus->width = (enum e1000_bus_width)((pcie_link_status &
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						     PCIE_LINK_WIDTH_MASK) >>
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						    PCIE_LINK_WIDTH_SHIFT);
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	}
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	mac->ops.set_lan_id(hw);
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	return 0;
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}
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/**
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 *  e1000_set_lan_id_multi_port_pcie - Set LAN id for PCIe multiple port devices
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 *
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 *  @hw: pointer to the HW structure
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 *
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 *  Determines the LAN function id by reading memory-mapped registers
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 *  and swaps the port value if requested.
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 **/
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void e1000_set_lan_id_multi_port_pcie(struct e1000_hw *hw)
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{
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	struct e1000_bus_info *bus = &hw->bus;
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	u32 reg;
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	/*
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	 * The status register reports the correct function number
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	 * for the device regardless of function swap state.
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	 */
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	reg = er32(STATUS);
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	bus->func = (reg & E1000_STATUS_FUNC_MASK) >> E1000_STATUS_FUNC_SHIFT;
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}
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/**
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 *  e1000_set_lan_id_single_port - Set LAN id for a single port device
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 *  @hw: pointer to the HW structure
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 *
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 *  Sets the LAN function id to zero for a single port device.
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 **/
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void e1000_set_lan_id_single_port(struct e1000_hw *hw)
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{
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	struct e1000_bus_info *bus = &hw->bus;
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	bus->func = 0;
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}
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/**
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 *  e1000_clear_vfta_generic - Clear VLAN filter table
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 *  @hw: pointer to the HW structure
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 *
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 *  Clears the register array which contains the VLAN filter table by
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 *  setting all the values to 0.
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 **/
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void e1000_clear_vfta_generic(struct e1000_hw *hw)
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{
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	u32 offset;
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	for (offset = 0; offset < E1000_VLAN_FILTER_TBL_SIZE; offset++) {
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		E1000_WRITE_REG_ARRAY(hw, E1000_VFTA, offset, 0);
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		e1e_flush();
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	}
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}
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/**
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 *  e1000_write_vfta_generic - Write value to VLAN filter table
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 *  @hw: pointer to the HW structure
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 *  @offset: register offset in VLAN filter table
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 *  @value: register value written to VLAN filter table
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 *
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 *  Writes value at the given offset in the register array which stores
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 *  the VLAN filter table.
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 **/
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void e1000_write_vfta_generic(struct e1000_hw *hw, u32 offset, u32 value)
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{
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	E1000_WRITE_REG_ARRAY(hw, E1000_VFTA, offset, value);
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	e1e_flush();
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}
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/**
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 *  e1000e_init_rx_addrs - Initialize receive address's
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 *  @hw: pointer to the HW structure
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 *  @rar_count: receive address registers
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 *
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 *  Setup the receive address registers by setting the base receive address
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 *  register to the devices MAC address and clearing all the other receive
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 *  address registers to 0.
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 **/
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void e1000e_init_rx_addrs(struct e1000_hw *hw, u16 rar_count)
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{
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	u32 i;
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	u8 mac_addr[ETH_ALEN] = { 0 };
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	/* Setup the receive address */
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	e_dbg("Programming MAC Address into RAR[0]\n");
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	e1000e_rar_set(hw, hw->mac.addr, 0);
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	/* Zero out the other (rar_entry_count - 1) receive addresses */
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	e_dbg("Clearing RAR[1-%u]\n", rar_count - 1);
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	for (i = 1; i < rar_count; i++)
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		e1000e_rar_set(hw, mac_addr, i);
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}
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/**
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 *  e1000_check_alt_mac_addr_generic - Check for alternate MAC addr
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 *  @hw: pointer to the HW structure
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 *
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 *  Checks the nvm for an alternate MAC address.  An alternate MAC address
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 *  can be setup by pre-boot software and must be treated like a permanent
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 *  address and must override the actual permanent MAC address. If an
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 *  alternate MAC address is found it is programmed into RAR0, replacing
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 *  the permanent address that was installed into RAR0 by the Si on reset.
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 *  This function will return SUCCESS unless it encounters an error while
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 *  reading the EEPROM.
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 **/
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s32 e1000_check_alt_mac_addr_generic(struct e1000_hw *hw)
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{
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	u32 i;
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	s32 ret_val = 0;
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	u16 offset, nvm_alt_mac_addr_offset, nvm_data;
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	u8 alt_mac_addr[ETH_ALEN];
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	ret_val = e1000_read_nvm(hw, NVM_COMPAT, 1, &nvm_data);
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	if (ret_val)
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		return ret_val;
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	/* not supported on 82573 */
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	if (hw->mac.type == e1000_82573)
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		return 0;
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	ret_val = e1000_read_nvm(hw, NVM_ALT_MAC_ADDR_PTR, 1,
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				 &nvm_alt_mac_addr_offset);
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	if (ret_val) {
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		e_dbg("NVM Read Error\n");
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		return ret_val;
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	}
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	if ((nvm_alt_mac_addr_offset == 0xFFFF) ||
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	    (nvm_alt_mac_addr_offset == 0x0000))
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		/* There is no Alternate MAC Address */
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		return 0;
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	if (hw->bus.func == E1000_FUNC_1)
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		nvm_alt_mac_addr_offset += E1000_ALT_MAC_ADDRESS_OFFSET_LAN1;
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	for (i = 0; i < ETH_ALEN; i += 2) {
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		offset = nvm_alt_mac_addr_offset + (i >> 1);
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		ret_val = e1000_read_nvm(hw, offset, 1, &nvm_data);
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		if (ret_val) {
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			e_dbg("NVM Read Error\n");
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			return ret_val;
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		}
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		alt_mac_addr[i] = (u8)(nvm_data & 0xFF);
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		alt_mac_addr[i + 1] = (u8)(nvm_data >> 8);
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	}
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	/* if multicast bit is set, the alternate address will not be used */
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	if (is_multicast_ether_addr(alt_mac_addr)) {
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		e_dbg("Ignoring Alternate Mac Address with MC bit set\n");
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		return 0;
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	}
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	/*
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	 * We have a valid alternate MAC address, and we want to treat it the
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	 * same as the normal permanent MAC address stored by the HW into the
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	 * RAR. Do this by mapping this address into RAR0.
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	 */
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	e1000e_rar_set(hw, alt_mac_addr, 0);
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	return 0;
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}
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/**
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 *  e1000e_rar_set - Set receive address register
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 *  @hw: pointer to the HW structure
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 *  @addr: pointer to the receive address
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 *  @index: receive address array register
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 *
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 *  Sets the receive address array register at index to the address passed
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 *  in by addr.
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 **/
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void e1000e_rar_set(struct e1000_hw *hw, u8 *addr, u32 index)
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{
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	u32 rar_low, rar_high;
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	/*
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	 * HW expects these in little endian so we reverse the byte order
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	 * from network order (big endian) to little endian
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	 */
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	rar_low = ((u32)addr[0] | ((u32)addr[1] << 8) |
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		   ((u32)addr[2] << 16) | ((u32)addr[3] << 24));
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	rar_high = ((u32)addr[4] | ((u32)addr[5] << 8));
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	/* If MAC address zero, no need to set the AV bit */
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	if (rar_low || rar_high)
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		rar_high |= E1000_RAH_AV;
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	/*
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	 * Some bridges will combine consecutive 32-bit writes into
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	 * a single burst write, which will malfunction on some parts.
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	 * The flushes avoid this.
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	 */
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	ew32(RAL(index), rar_low);
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	e1e_flush();
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	ew32(RAH(index), rar_high);
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	e1e_flush();
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}
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/**
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 *  e1000_hash_mc_addr - Generate a multicast hash value
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 *  @hw: pointer to the HW structure
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   263
 *  @mc_addr: pointer to a multicast address
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   264
 *
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 *  Generates a multicast address hash value which is used to determine
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   266
 *  the multicast filter table array address and new table value.
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 **/
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static u32 e1000_hash_mc_addr(struct e1000_hw *hw, u8 *mc_addr)
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{
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   270
	u32 hash_value, hash_mask;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   271
	u8 bit_shift = 0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   272
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   273
	/* Register count multiplied by bits per register */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   274
	hash_mask = (hw->mac.mta_reg_count * 32) - 1;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   275
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   276
	/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   277
	 * For a mc_filter_type of 0, bit_shift is the number of left-shifts
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   278
	 * where 0xFF would still fall within the hash mask.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   279
	 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   280
	while (hash_mask >> bit_shift != 0xFF)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   281
		bit_shift++;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   282
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   283
	/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   284
	 * The portion of the address that is used for the hash table
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   285
	 * is determined by the mc_filter_type setting.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   286
	 * The algorithm is such that there is a total of 8 bits of shifting.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   287
	 * The bit_shift for a mc_filter_type of 0 represents the number of
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   288
	 * left-shifts where the MSB of mc_addr[5] would still fall within
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   289
	 * the hash_mask.  Case 0 does this exactly.  Since there are a total
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   290
	 * of 8 bits of shifting, then mc_addr[4] will shift right the
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   291
	 * remaining number of bits. Thus 8 - bit_shift.  The rest of the
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   292
	 * cases are a variation of this algorithm...essentially raising the
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   293
	 * number of bits to shift mc_addr[5] left, while still keeping the
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   294
	 * 8-bit shifting total.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   295
	 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   296
	 * For example, given the following Destination MAC Address and an
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   297
	 * mta register count of 128 (thus a 4096-bit vector and 0xFFF mask),
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   298
	 * we can see that the bit_shift for case 0 is 4.  These are the hash
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   299
	 * values resulting from each mc_filter_type...
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   300
	 * [0] [1] [2] [3] [4] [5]
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   301
	 * 01  AA  00  12  34  56
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   302
	 * LSB           MSB
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   303
	 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   304
	 * case 0: hash_value = ((0x34 >> 4) | (0x56 << 4)) & 0xFFF = 0x563
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   305
	 * case 1: hash_value = ((0x34 >> 3) | (0x56 << 5)) & 0xFFF = 0xAC6
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   306
	 * case 2: hash_value = ((0x34 >> 2) | (0x56 << 6)) & 0xFFF = 0x163
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   307
	 * case 3: hash_value = ((0x34 >> 0) | (0x56 << 8)) & 0xFFF = 0x634
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   308
	 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   309
	switch (hw->mac.mc_filter_type) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   310
	default:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   311
	case 0:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   312
		break;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   313
	case 1:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   314
		bit_shift += 1;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   315
		break;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   316
	case 2:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   317
		bit_shift += 2;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   318
		break;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   319
	case 3:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   320
		bit_shift += 4;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   321
		break;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   322
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   323
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   324
	hash_value = hash_mask & (((mc_addr[4] >> (8 - bit_shift)) |
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   325
				   (((u16)mc_addr[5]) << bit_shift)));
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   326
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   327
	return hash_value;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   328
}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   329
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   330
/**
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   331
 *  e1000e_update_mc_addr_list_generic - Update Multicast addresses
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   332
 *  @hw: pointer to the HW structure
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   333
 *  @mc_addr_list: array of multicast addresses to program
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   334
 *  @mc_addr_count: number of multicast addresses to program
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   335
 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   336
 *  Updates entire Multicast Table Array.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   337
 *  The caller must have a packed mc_addr_list of multicast addresses.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   338
 **/
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   339
void e1000e_update_mc_addr_list_generic(struct e1000_hw *hw,
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   340
					u8 *mc_addr_list, u32 mc_addr_count)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   341
{
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   342
	u32 hash_value, hash_bit, hash_reg;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   343
	int i;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   344
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   345
	/* clear mta_shadow */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   346
	memset(&hw->mac.mta_shadow, 0, sizeof(hw->mac.mta_shadow));
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   347
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   348
	/* update mta_shadow from mc_addr_list */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   349
	for (i = 0; (u32)i < mc_addr_count; i++) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   350
		hash_value = e1000_hash_mc_addr(hw, mc_addr_list);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   351
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   352
		hash_reg = (hash_value >> 5) & (hw->mac.mta_reg_count - 1);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   353
		hash_bit = hash_value & 0x1F;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   354
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   355
		hw->mac.mta_shadow[hash_reg] |= (1 << hash_bit);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   356
		mc_addr_list += (ETH_ALEN);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   357
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   358
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   359
	/* replace the entire MTA table */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   360
	for (i = hw->mac.mta_reg_count - 1; i >= 0; i--)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   361
		E1000_WRITE_REG_ARRAY(hw, E1000_MTA, i, hw->mac.mta_shadow[i]);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   362
	e1e_flush();
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   363
}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   364
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   365
/**
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   366
 *  e1000e_clear_hw_cntrs_base - Clear base hardware counters
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   367
 *  @hw: pointer to the HW structure
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   368
 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   369
 *  Clears the base hardware counters by reading the counter registers.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   370
 **/
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   371
void e1000e_clear_hw_cntrs_base(struct e1000_hw *hw)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   372
{
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   373
	er32(CRCERRS);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   374
	er32(SYMERRS);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   375
	er32(MPC);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   376
	er32(SCC);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   377
	er32(ECOL);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   378
	er32(MCC);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   379
	er32(LATECOL);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   380
	er32(COLC);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   381
	er32(DC);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   382
	er32(SEC);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   383
	er32(RLEC);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   384
	er32(XONRXC);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   385
	er32(XONTXC);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   386
	er32(XOFFRXC);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   387
	er32(XOFFTXC);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   388
	er32(FCRUC);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   389
	er32(GPRC);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   390
	er32(BPRC);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   391
	er32(MPRC);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   392
	er32(GPTC);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   393
	er32(GORCL);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   394
	er32(GORCH);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   395
	er32(GOTCL);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   396
	er32(GOTCH);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   397
	er32(RNBC);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   398
	er32(RUC);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   399
	er32(RFC);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   400
	er32(ROC);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   401
	er32(RJC);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   402
	er32(TORL);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   403
	er32(TORH);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   404
	er32(TOTL);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   405
	er32(TOTH);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   406
	er32(TPR);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   407
	er32(TPT);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   408
	er32(MPTC);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   409
	er32(BPTC);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   410
}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   411
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   412
/**
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   413
 *  e1000e_check_for_copper_link - Check for link (Copper)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   414
 *  @hw: pointer to the HW structure
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   415
 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   416
 *  Checks to see of the link status of the hardware has changed.  If a
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   417
 *  change in link status has been detected, then we read the PHY registers
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   418
 *  to get the current speed/duplex if link exists.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   419
 **/
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   420
s32 e1000e_check_for_copper_link(struct e1000_hw *hw)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   421
{
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   422
	struct e1000_mac_info *mac = &hw->mac;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   423
	s32 ret_val;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   424
	bool link;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   425
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   426
	/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   427
	 * We only want to go out to the PHY registers to see if Auto-Neg
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   428
	 * has completed and/or if our link status has changed.  The
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   429
	 * get_link_status flag is set upon receiving a Link Status
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   430
	 * Change or Rx Sequence Error interrupt.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   431
	 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   432
	if (!mac->get_link_status)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   433
		return 0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   434
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   435
	/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   436
	 * First we want to see if the MII Status Register reports
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   437
	 * link.  If so, then we want to get the current speed/duplex
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   438
	 * of the PHY.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   439
	 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   440
	ret_val = e1000e_phy_has_link_generic(hw, 1, 0, &link);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   441
	if (ret_val)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   442
		return ret_val;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   443
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   444
	if (!link)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   445
		return 0;	/* No link detected */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   446
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   447
	mac->get_link_status = false;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   448
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   449
	/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   450
	 * Check if there was DownShift, must be checked
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   451
	 * immediately after link-up
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   452
	 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   453
	e1000e_check_downshift(hw);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   454
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   455
	/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   456
	 * If we are forcing speed/duplex, then we simply return since
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   457
	 * we have already determined whether we have link or not.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   458
	 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   459
	if (!mac->autoneg)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   460
		return -E1000_ERR_CONFIG;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   461
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   462
	/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   463
	 * Auto-Neg is enabled.  Auto Speed Detection takes care
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   464
	 * of MAC speed/duplex configuration.  So we only need to
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   465
	 * configure Collision Distance in the MAC.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   466
	 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   467
	mac->ops.config_collision_dist(hw);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   468
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   469
	/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   470
	 * Configure Flow Control now that Auto-Neg has completed.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   471
	 * First, we need to restore the desired flow control
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   472
	 * settings because we may have had to re-autoneg with a
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   473
	 * different link partner.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   474
	 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   475
	ret_val = e1000e_config_fc_after_link_up(hw);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   476
	if (ret_val)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   477
		e_dbg("Error configuring flow control\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   478
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   479
	return ret_val;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   480
}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   481
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   482
/**
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   483
 *  e1000e_check_for_fiber_link - Check for link (Fiber)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   484
 *  @hw: pointer to the HW structure
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   485
 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   486
 *  Checks for link up on the hardware.  If link is not up and we have
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   487
 *  a signal, then we need to force link up.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   488
 **/
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   489
s32 e1000e_check_for_fiber_link(struct e1000_hw *hw)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   490
{
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   491
	struct e1000_mac_info *mac = &hw->mac;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   492
	u32 rxcw;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   493
	u32 ctrl;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   494
	u32 status;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   495
	s32 ret_val;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   496
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   497
	ctrl = er32(CTRL);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   498
	status = er32(STATUS);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   499
	rxcw = er32(RXCW);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   500
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   501
	/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   502
	 * If we don't have link (auto-negotiation failed or link partner
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   503
	 * cannot auto-negotiate), the cable is plugged in (we have signal),
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   504
	 * and our link partner is not trying to auto-negotiate with us (we
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   505
	 * are receiving idles or data), we need to force link up. We also
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   506
	 * need to give auto-negotiation time to complete, in case the cable
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   507
	 * was just plugged in. The autoneg_failed flag does this.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   508
	 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   509
	/* (ctrl & E1000_CTRL_SWDPIN1) == 1 == have signal */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   510
	if ((ctrl & E1000_CTRL_SWDPIN1) && !(status & E1000_STATUS_LU) &&
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   511
	    !(rxcw & E1000_RXCW_C)) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   512
		if (!mac->autoneg_failed) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   513
			mac->autoneg_failed = true;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   514
			return 0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   515
		}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   516
		e_dbg("NOT Rx'ing /C/, disable AutoNeg and force link.\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   517
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   518
		/* Disable auto-negotiation in the TXCW register */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   519
		ew32(TXCW, (mac->txcw & ~E1000_TXCW_ANE));
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   520
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   521
		/* Force link-up and also force full-duplex. */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   522
		ctrl = er32(CTRL);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   523
		ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FD);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   524
		ew32(CTRL, ctrl);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   525
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   526
		/* Configure Flow Control after forcing link up. */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   527
		ret_val = e1000e_config_fc_after_link_up(hw);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   528
		if (ret_val) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   529
			e_dbg("Error configuring flow control\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   530
			return ret_val;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   531
		}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   532
	} else if ((ctrl & E1000_CTRL_SLU) && (rxcw & E1000_RXCW_C)) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   533
		/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   534
		 * If we are forcing link and we are receiving /C/ ordered
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   535
		 * sets, re-enable auto-negotiation in the TXCW register
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   536
		 * and disable forced link in the Device Control register
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   537
		 * in an attempt to auto-negotiate with our link partner.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   538
		 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   539
		e_dbg("Rx'ing /C/, enable AutoNeg and stop forcing link.\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   540
		ew32(TXCW, mac->txcw);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   541
		ew32(CTRL, (ctrl & ~E1000_CTRL_SLU));
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   542
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   543
		mac->serdes_has_link = true;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   544
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   545
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   546
	return 0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   547
}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   548
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   549
/**
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   550
 *  e1000e_check_for_serdes_link - Check for link (Serdes)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   551
 *  @hw: pointer to the HW structure
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   552
 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   553
 *  Checks for link up on the hardware.  If link is not up and we have
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   554
 *  a signal, then we need to force link up.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   555
 **/
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   556
s32 e1000e_check_for_serdes_link(struct e1000_hw *hw)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   557
{
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   558
	struct e1000_mac_info *mac = &hw->mac;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   559
	u32 rxcw;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   560
	u32 ctrl;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   561
	u32 status;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   562
	s32 ret_val;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   563
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   564
	ctrl = er32(CTRL);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   565
	status = er32(STATUS);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   566
	rxcw = er32(RXCW);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   567
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   568
	/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   569
	 * If we don't have link (auto-negotiation failed or link partner
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   570
	 * cannot auto-negotiate), and our link partner is not trying to
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   571
	 * auto-negotiate with us (we are receiving idles or data),
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   572
	 * we need to force link up. We also need to give auto-negotiation
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   573
	 * time to complete.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   574
	 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   575
	/* (ctrl & E1000_CTRL_SWDPIN1) == 1 == have signal */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   576
	if (!(status & E1000_STATUS_LU) && !(rxcw & E1000_RXCW_C)) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   577
		if (!mac->autoneg_failed) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   578
			mac->autoneg_failed = true;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   579
			return 0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   580
		}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   581
		e_dbg("NOT Rx'ing /C/, disable AutoNeg and force link.\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   582
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   583
		/* Disable auto-negotiation in the TXCW register */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   584
		ew32(TXCW, (mac->txcw & ~E1000_TXCW_ANE));
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   585
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   586
		/* Force link-up and also force full-duplex. */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   587
		ctrl = er32(CTRL);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   588
		ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FD);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   589
		ew32(CTRL, ctrl);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   590
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   591
		/* Configure Flow Control after forcing link up. */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   592
		ret_val = e1000e_config_fc_after_link_up(hw);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   593
		if (ret_val) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   594
			e_dbg("Error configuring flow control\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   595
			return ret_val;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   596
		}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   597
	} else if ((ctrl & E1000_CTRL_SLU) && (rxcw & E1000_RXCW_C)) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   598
		/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   599
		 * If we are forcing link and we are receiving /C/ ordered
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   600
		 * sets, re-enable auto-negotiation in the TXCW register
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   601
		 * and disable forced link in the Device Control register
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   602
		 * in an attempt to auto-negotiate with our link partner.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   603
		 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   604
		e_dbg("Rx'ing /C/, enable AutoNeg and stop forcing link.\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   605
		ew32(TXCW, mac->txcw);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   606
		ew32(CTRL, (ctrl & ~E1000_CTRL_SLU));
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   607
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   608
		mac->serdes_has_link = true;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   609
	} else if (!(E1000_TXCW_ANE & er32(TXCW))) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   610
		/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   611
		 * If we force link for non-auto-negotiation switch, check
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   612
		 * link status based on MAC synchronization for internal
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   613
		 * serdes media type.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   614
		 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   615
		/* SYNCH bit and IV bit are sticky. */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   616
		udelay(10);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   617
		rxcw = er32(RXCW);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   618
		if (rxcw & E1000_RXCW_SYNCH) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   619
			if (!(rxcw & E1000_RXCW_IV)) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   620
				mac->serdes_has_link = true;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   621
				e_dbg("SERDES: Link up - forced.\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   622
			}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   623
		} else {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   624
			mac->serdes_has_link = false;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   625
			e_dbg("SERDES: Link down - force failed.\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   626
		}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   627
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   628
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   629
	if (E1000_TXCW_ANE & er32(TXCW)) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   630
		status = er32(STATUS);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   631
		if (status & E1000_STATUS_LU) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   632
			/* SYNCH bit and IV bit are sticky, so reread rxcw. */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   633
			udelay(10);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   634
			rxcw = er32(RXCW);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   635
			if (rxcw & E1000_RXCW_SYNCH) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   636
				if (!(rxcw & E1000_RXCW_IV)) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   637
					mac->serdes_has_link = true;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   638
					e_dbg("SERDES: Link up - autoneg completed successfully.\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   639
				} else {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   640
					mac->serdes_has_link = false;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   641
					e_dbg("SERDES: Link down - invalid codewords detected in autoneg.\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   642
				}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   643
			} else {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   644
				mac->serdes_has_link = false;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   645
				e_dbg("SERDES: Link down - no sync.\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   646
			}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   647
		} else {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   648
			mac->serdes_has_link = false;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   649
			e_dbg("SERDES: Link down - autoneg failed\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   650
		}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   651
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   652
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   653
	return 0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   654
}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   655
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   656
/**
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   657
 *  e1000_set_default_fc_generic - Set flow control default values
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   658
 *  @hw: pointer to the HW structure
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   659
 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   660
 *  Read the EEPROM for the default values for flow control and store the
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   661
 *  values.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   662
 **/
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   663
static s32 e1000_set_default_fc_generic(struct e1000_hw *hw)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   664
{
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   665
	s32 ret_val;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   666
	u16 nvm_data;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   667
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   668
	/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   669
	 * Read and store word 0x0F of the EEPROM. This word contains bits
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   670
	 * that determine the hardware's default PAUSE (flow control) mode,
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   671
	 * a bit that determines whether the HW defaults to enabling or
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   672
	 * disabling auto-negotiation, and the direction of the
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   673
	 * SW defined pins. If there is no SW over-ride of the flow
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   674
	 * control setting, then the variable hw->fc will
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   675
	 * be initialized based on a value in the EEPROM.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   676
	 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   677
	ret_val = e1000_read_nvm(hw, NVM_INIT_CONTROL2_REG, 1, &nvm_data);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   678
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   679
	if (ret_val) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   680
		e_dbg("NVM Read Error\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   681
		return ret_val;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   682
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   683
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   684
	if ((nvm_data & NVM_WORD0F_PAUSE_MASK) == 0)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   685
		hw->fc.requested_mode = e1000_fc_none;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   686
	else if ((nvm_data & NVM_WORD0F_PAUSE_MASK) == NVM_WORD0F_ASM_DIR)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   687
		hw->fc.requested_mode = e1000_fc_tx_pause;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   688
	else
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   689
		hw->fc.requested_mode = e1000_fc_full;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   690
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   691
	return 0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   692
}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   693
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   694
/**
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   695
 *  e1000e_setup_link_generic - Setup flow control and link settings
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   696
 *  @hw: pointer to the HW structure
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   697
 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   698
 *  Determines which flow control settings to use, then configures flow
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   699
 *  control.  Calls the appropriate media-specific link configuration
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   700
 *  function.  Assuming the adapter has a valid link partner, a valid link
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   701
 *  should be established.  Assumes the hardware has previously been reset
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   702
 *  and the transmitter and receiver are not enabled.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   703
 **/
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   704
s32 e1000e_setup_link_generic(struct e1000_hw *hw)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   705
{
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   706
	s32 ret_val;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   707
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   708
	/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   709
	 * In the case of the phy reset being blocked, we already have a link.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   710
	 * We do not need to set it up again.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   711
	 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   712
	if (hw->phy.ops.check_reset_block && hw->phy.ops.check_reset_block(hw))
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   713
		return 0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   714
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   715
	/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   716
	 * If requested flow control is set to default, set flow control
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   717
	 * based on the EEPROM flow control settings.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   718
	 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   719
	if (hw->fc.requested_mode == e1000_fc_default) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   720
		ret_val = e1000_set_default_fc_generic(hw);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   721
		if (ret_val)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   722
			return ret_val;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   723
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   724
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   725
	/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   726
	 * Save off the requested flow control mode for use later.  Depending
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   727
	 * on the link partner's capabilities, we may or may not use this mode.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   728
	 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   729
	hw->fc.current_mode = hw->fc.requested_mode;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   730
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   731
	e_dbg("After fix-ups FlowControl is now = %x\n", hw->fc.current_mode);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   732
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   733
	/* Call the necessary media_type subroutine to configure the link. */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   734
	ret_val = hw->mac.ops.setup_physical_interface(hw);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   735
	if (ret_val)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   736
		return ret_val;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   737
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   738
	/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   739
	 * Initialize the flow control address, type, and PAUSE timer
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   740
	 * registers to their default values.  This is done even if flow
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   741
	 * control is disabled, because it does not hurt anything to
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   742
	 * initialize these registers.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   743
	 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   744
	e_dbg("Initializing the Flow Control address, type and timer regs\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   745
	ew32(FCT, FLOW_CONTROL_TYPE);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   746
	ew32(FCAH, FLOW_CONTROL_ADDRESS_HIGH);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   747
	ew32(FCAL, FLOW_CONTROL_ADDRESS_LOW);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   748
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   749
	ew32(FCTTV, hw->fc.pause_time);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   750
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   751
	return e1000e_set_fc_watermarks(hw);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   752
}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   753
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   754
/**
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   755
 *  e1000_commit_fc_settings_generic - Configure flow control
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   756
 *  @hw: pointer to the HW structure
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   757
 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   758
 *  Write the flow control settings to the Transmit Config Word Register (TXCW)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   759
 *  base on the flow control settings in e1000_mac_info.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   760
 **/
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   761
static s32 e1000_commit_fc_settings_generic(struct e1000_hw *hw)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   762
{
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   763
	struct e1000_mac_info *mac = &hw->mac;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   764
	u32 txcw;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   765
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   766
	/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   767
	 * Check for a software override of the flow control settings, and
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   768
	 * setup the device accordingly.  If auto-negotiation is enabled, then
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   769
	 * software will have to set the "PAUSE" bits to the correct value in
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   770
	 * the Transmit Config Word Register (TXCW) and re-start auto-
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   771
	 * negotiation.  However, if auto-negotiation is disabled, then
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   772
	 * software will have to manually configure the two flow control enable
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   773
	 * bits in the CTRL register.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   774
	 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   775
	 * The possible values of the "fc" parameter are:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   776
	 *      0:  Flow control is completely disabled
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   777
	 *      1:  Rx flow control is enabled (we can receive pause frames,
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   778
	 *          but not send pause frames).
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   779
	 *      2:  Tx flow control is enabled (we can send pause frames but we
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   780
	 *          do not support receiving pause frames).
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   781
	 *      3:  Both Rx and Tx flow control (symmetric) are enabled.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   782
	 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   783
	switch (hw->fc.current_mode) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   784
	case e1000_fc_none:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   785
		/* Flow control completely disabled by a software over-ride. */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   786
		txcw = (E1000_TXCW_ANE | E1000_TXCW_FD);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   787
		break;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   788
	case e1000_fc_rx_pause:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   789
		/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   790
		 * Rx Flow control is enabled and Tx Flow control is disabled
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   791
		 * by a software over-ride. Since there really isn't a way to
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   792
		 * advertise that we are capable of Rx Pause ONLY, we will
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   793
		 * advertise that we support both symmetric and asymmetric Rx
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   794
		 * PAUSE.  Later, we will disable the adapter's ability to send
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   795
		 * PAUSE frames.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   796
		 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   797
		txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_PAUSE_MASK);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   798
		break;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   799
	case e1000_fc_tx_pause:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   800
		/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   801
		 * Tx Flow control is enabled, and Rx Flow control is disabled,
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   802
		 * by a software over-ride.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   803
		 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   804
		txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_ASM_DIR);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   805
		break;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   806
	case e1000_fc_full:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   807
		/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   808
		 * Flow control (both Rx and Tx) is enabled by a software
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   809
		 * over-ride.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   810
		 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   811
		txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_PAUSE_MASK);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   812
		break;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   813
	default:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   814
		e_dbg("Flow control param set incorrectly\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   815
		return -E1000_ERR_CONFIG;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   816
		break;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   817
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   818
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   819
	ew32(TXCW, txcw);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   820
	mac->txcw = txcw;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   821
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   822
	return 0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   823
}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   824
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   825
/**
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   826
 *  e1000_poll_fiber_serdes_link_generic - Poll for link up
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   827
 *  @hw: pointer to the HW structure
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   828
 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   829
 *  Polls for link up by reading the status register, if link fails to come
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   830
 *  up with auto-negotiation, then the link is forced if a signal is detected.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   831
 **/
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   832
static s32 e1000_poll_fiber_serdes_link_generic(struct e1000_hw *hw)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   833
{
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   834
	struct e1000_mac_info *mac = &hw->mac;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   835
	u32 i, status;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   836
	s32 ret_val;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   837
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   838
	/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   839
	 * If we have a signal (the cable is plugged in, or assumed true for
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   840
	 * serdes media) then poll for a "Link-Up" indication in the Device
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   841
	 * Status Register.  Time-out if a link isn't seen in 500 milliseconds
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   842
	 * seconds (Auto-negotiation should complete in less than 500
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   843
	 * milliseconds even if the other end is doing it in SW).
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   844
	 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   845
	for (i = 0; i < FIBER_LINK_UP_LIMIT; i++) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   846
		usleep_range(10000, 20000);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   847
		status = er32(STATUS);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   848
		if (status & E1000_STATUS_LU)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   849
			break;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   850
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   851
	if (i == FIBER_LINK_UP_LIMIT) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   852
		e_dbg("Never got a valid link from auto-neg!!!\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   853
		mac->autoneg_failed = true;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   854
		/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   855
		 * AutoNeg failed to achieve a link, so we'll call
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   856
		 * mac->check_for_link. This routine will force the
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   857
		 * link up if we detect a signal. This will allow us to
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   858
		 * communicate with non-autonegotiating link partners.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   859
		 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   860
		ret_val = mac->ops.check_for_link(hw);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   861
		if (ret_val) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   862
			e_dbg("Error while checking for link\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   863
			return ret_val;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   864
		}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   865
		mac->autoneg_failed = false;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   866
	} else {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   867
		mac->autoneg_failed = false;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   868
		e_dbg("Valid Link Found\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   869
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   870
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   871
	return 0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   872
}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   873
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   874
/**
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   875
 *  e1000e_setup_fiber_serdes_link - Setup link for fiber/serdes
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   876
 *  @hw: pointer to the HW structure
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   877
 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   878
 *  Configures collision distance and flow control for fiber and serdes
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   879
 *  links.  Upon successful setup, poll for link.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   880
 **/
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   881
s32 e1000e_setup_fiber_serdes_link(struct e1000_hw *hw)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   882
{
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   883
	u32 ctrl;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   884
	s32 ret_val;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   885
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   886
	ctrl = er32(CTRL);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   887
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   888
	/* Take the link out of reset */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   889
	ctrl &= ~E1000_CTRL_LRST;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   890
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   891
	hw->mac.ops.config_collision_dist(hw);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   892
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   893
	ret_val = e1000_commit_fc_settings_generic(hw);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   894
	if (ret_val)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   895
		return ret_val;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   896
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   897
	/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   898
	 * Since auto-negotiation is enabled, take the link out of reset (the
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   899
	 * link will be in reset, because we previously reset the chip). This
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   900
	 * will restart auto-negotiation.  If auto-negotiation is successful
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   901
	 * then the link-up status bit will be set and the flow control enable
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   902
	 * bits (RFCE and TFCE) will be set according to their negotiated value.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   903
	 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   904
	e_dbg("Auto-negotiation enabled\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   905
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   906
	ew32(CTRL, ctrl);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   907
	e1e_flush();
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   908
	usleep_range(1000, 2000);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   909
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   910
	/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   911
	 * For these adapters, the SW definable pin 1 is set when the optics
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   912
	 * detect a signal.  If we have a signal, then poll for a "Link-Up"
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   913
	 * indication.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   914
	 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   915
	if (hw->phy.media_type == e1000_media_type_internal_serdes ||
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   916
	    (er32(CTRL) & E1000_CTRL_SWDPIN1)) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   917
		ret_val = e1000_poll_fiber_serdes_link_generic(hw);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   918
	} else {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   919
		e_dbg("No signal detected\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   920
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   921
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   922
	return ret_val;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   923
}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   924
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   925
/**
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   926
 *  e1000e_config_collision_dist_generic - Configure collision distance
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   927
 *  @hw: pointer to the HW structure
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   928
 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   929
 *  Configures the collision distance to the default value and is used
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   930
 *  during link setup.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   931
 **/
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   932
void e1000e_config_collision_dist_generic(struct e1000_hw *hw)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   933
{
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   934
	u32 tctl;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   935
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   936
	tctl = er32(TCTL);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   937
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   938
	tctl &= ~E1000_TCTL_COLD;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   939
	tctl |= E1000_COLLISION_DISTANCE << E1000_COLD_SHIFT;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   940
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   941
	ew32(TCTL, tctl);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   942
	e1e_flush();
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   943
}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   944
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   945
/**
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   946
 *  e1000e_set_fc_watermarks - Set flow control high/low watermarks
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   947
 *  @hw: pointer to the HW structure
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   948
 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   949
 *  Sets the flow control high/low threshold (watermark) registers.  If
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   950
 *  flow control XON frame transmission is enabled, then set XON frame
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   951
 *  transmission as well.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   952
 **/
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   953
s32 e1000e_set_fc_watermarks(struct e1000_hw *hw)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   954
{
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   955
	u32 fcrtl = 0, fcrth = 0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   956
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   957
	/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   958
	 * Set the flow control receive threshold registers.  Normally,
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   959
	 * these registers will be set to a default threshold that may be
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   960
	 * adjusted later by the driver's runtime code.  However, if the
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   961
	 * ability to transmit pause frames is not enabled, then these
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   962
	 * registers will be set to 0.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   963
	 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   964
	if (hw->fc.current_mode & e1000_fc_tx_pause) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   965
		/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   966
		 * We need to set up the Receive Threshold high and low water
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   967
		 * marks as well as (optionally) enabling the transmission of
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   968
		 * XON frames.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   969
		 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   970
		fcrtl = hw->fc.low_water;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   971
		if (hw->fc.send_xon)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   972
			fcrtl |= E1000_FCRTL_XONE;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   973
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   974
		fcrth = hw->fc.high_water;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   975
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   976
	ew32(FCRTL, fcrtl);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   977
	ew32(FCRTH, fcrth);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   978
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   979
	return 0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   980
}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   981
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   982
/**
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   983
 *  e1000e_force_mac_fc - Force the MAC's flow control settings
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   984
 *  @hw: pointer to the HW structure
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   985
 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   986
 *  Force the MAC's flow control settings.  Sets the TFCE and RFCE bits in the
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   987
 *  device control register to reflect the adapter settings.  TFCE and RFCE
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   988
 *  need to be explicitly set by software when a copper PHY is used because
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   989
 *  autonegotiation is managed by the PHY rather than the MAC.  Software must
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   990
 *  also configure these bits when link is forced on a fiber connection.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   991
 **/
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   992
s32 e1000e_force_mac_fc(struct e1000_hw *hw)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   993
{
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   994
	u32 ctrl;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   995
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   996
	ctrl = er32(CTRL);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   997
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   998
	/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   999
	 * Because we didn't get link via the internal auto-negotiation
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1000
	 * mechanism (we either forced link or we got link via PHY
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1001
	 * auto-neg), we have to manually enable/disable transmit an
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1002
	 * receive flow control.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1003
	 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1004
	 * The "Case" statement below enables/disable flow control
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1005
	 * according to the "hw->fc.current_mode" parameter.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1006
	 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1007
	 * The possible values of the "fc" parameter are:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1008
	 *      0:  Flow control is completely disabled
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1009
	 *      1:  Rx flow control is enabled (we can receive pause
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1010
	 *          frames but not send pause frames).
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1011
	 *      2:  Tx flow control is enabled (we can send pause frames
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1012
	 *          frames but we do not receive pause frames).
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1013
	 *      3:  Both Rx and Tx flow control (symmetric) is enabled.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1014
	 *  other:  No other values should be possible at this point.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1015
	 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1016
	e_dbg("hw->fc.current_mode = %u\n", hw->fc.current_mode);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1017
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1018
	switch (hw->fc.current_mode) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1019
	case e1000_fc_none:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1020
		ctrl &= (~(E1000_CTRL_TFCE | E1000_CTRL_RFCE));
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1021
		break;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1022
	case e1000_fc_rx_pause:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1023
		ctrl &= (~E1000_CTRL_TFCE);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1024
		ctrl |= E1000_CTRL_RFCE;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1025
		break;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1026
	case e1000_fc_tx_pause:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1027
		ctrl &= (~E1000_CTRL_RFCE);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1028
		ctrl |= E1000_CTRL_TFCE;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1029
		break;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1030
	case e1000_fc_full:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1031
		ctrl |= (E1000_CTRL_TFCE | E1000_CTRL_RFCE);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1032
		break;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1033
	default:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1034
		e_dbg("Flow control param set incorrectly\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1035
		return -E1000_ERR_CONFIG;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1036
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1037
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1038
	ew32(CTRL, ctrl);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1039
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1040
	return 0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1041
}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1042
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1043
/**
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1044
 *  e1000e_config_fc_after_link_up - Configures flow control after link
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1045
 *  @hw: pointer to the HW structure
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1046
 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1047
 *  Checks the status of auto-negotiation after link up to ensure that the
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1048
 *  speed and duplex were not forced.  If the link needed to be forced, then
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1049
 *  flow control needs to be forced also.  If auto-negotiation is enabled
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1050
 *  and did not fail, then we configure flow control based on our link
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1051
 *  partner.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1052
 **/
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1053
s32 e1000e_config_fc_after_link_up(struct e1000_hw *hw)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1054
{
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1055
	struct e1000_mac_info *mac = &hw->mac;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1056
	s32 ret_val = 0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1057
	u16 mii_status_reg, mii_nway_adv_reg, mii_nway_lp_ability_reg;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1058
	u16 speed, duplex;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1059
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1060
	/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1061
	 * Check for the case where we have fiber media and auto-neg failed
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1062
	 * so we had to force link.  In this case, we need to force the
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1063
	 * configuration of the MAC to match the "fc" parameter.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1064
	 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1065
	if (mac->autoneg_failed) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1066
		if (hw->phy.media_type == e1000_media_type_fiber ||
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1067
		    hw->phy.media_type == e1000_media_type_internal_serdes)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1068
			ret_val = e1000e_force_mac_fc(hw);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1069
	} else {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1070
		if (hw->phy.media_type == e1000_media_type_copper)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1071
			ret_val = e1000e_force_mac_fc(hw);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1072
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1073
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1074
	if (ret_val) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1075
		e_dbg("Error forcing flow control settings\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1076
		return ret_val;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1077
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1078
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1079
	/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1080
	 * Check for the case where we have copper media and auto-neg is
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1081
	 * enabled.  In this case, we need to check and see if Auto-Neg
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1082
	 * has completed, and if so, how the PHY and link partner has
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1083
	 * flow control configured.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1084
	 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1085
	if ((hw->phy.media_type == e1000_media_type_copper) && mac->autoneg) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1086
		/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1087
		 * Read the MII Status Register and check to see if AutoNeg
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1088
		 * has completed.  We read this twice because this reg has
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1089
		 * some "sticky" (latched) bits.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1090
		 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1091
		ret_val = e1e_rphy(hw, PHY_STATUS, &mii_status_reg);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1092
		if (ret_val)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1093
			return ret_val;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1094
		ret_val = e1e_rphy(hw, PHY_STATUS, &mii_status_reg);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1095
		if (ret_val)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1096
			return ret_val;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1097
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1098
		if (!(mii_status_reg & MII_SR_AUTONEG_COMPLETE)) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1099
			e_dbg("Copper PHY and Auto Neg has not completed.\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1100
			return ret_val;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1101
		}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1102
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1103
		/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1104
		 * The AutoNeg process has completed, so we now need to
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1105
		 * read both the Auto Negotiation Advertisement
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1106
		 * Register (Address 4) and the Auto_Negotiation Base
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1107
		 * Page Ability Register (Address 5) to determine how
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1108
		 * flow control was negotiated.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1109
		 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1110
		ret_val = e1e_rphy(hw, PHY_AUTONEG_ADV, &mii_nway_adv_reg);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1111
		if (ret_val)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1112
			return ret_val;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1113
		ret_val =
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1114
		    e1e_rphy(hw, PHY_LP_ABILITY, &mii_nway_lp_ability_reg);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1115
		if (ret_val)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1116
			return ret_val;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1117
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1118
		/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1119
		 * Two bits in the Auto Negotiation Advertisement Register
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1120
		 * (Address 4) and two bits in the Auto Negotiation Base
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1121
		 * Page Ability Register (Address 5) determine flow control
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1122
		 * for both the PHY and the link partner.  The following
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1123
		 * table, taken out of the IEEE 802.3ab/D6.0 dated March 25,
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1124
		 * 1999, describes these PAUSE resolution bits and how flow
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1125
		 * control is determined based upon these settings.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1126
		 * NOTE:  DC = Don't Care
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1127
		 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1128
		 *   LOCAL DEVICE  |   LINK PARTNER
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1129
		 * PAUSE | ASM_DIR | PAUSE | ASM_DIR | NIC Resolution
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1130
		 *-------|---------|-------|---------|--------------------
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1131
		 *   0   |    0    |  DC   |   DC    | e1000_fc_none
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1132
		 *   0   |    1    |   0   |   DC    | e1000_fc_none
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1133
		 *   0   |    1    |   1   |    0    | e1000_fc_none
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1134
		 *   0   |    1    |   1   |    1    | e1000_fc_tx_pause
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1135
		 *   1   |    0    |   0   |   DC    | e1000_fc_none
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1136
		 *   1   |   DC    |   1   |   DC    | e1000_fc_full
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1137
		 *   1   |    1    |   0   |    0    | e1000_fc_none
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1138
		 *   1   |    1    |   0   |    1    | e1000_fc_rx_pause
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1139
		 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1140
		 * Are both PAUSE bits set to 1?  If so, this implies
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1141
		 * Symmetric Flow Control is enabled at both ends.  The
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1142
		 * ASM_DIR bits are irrelevant per the spec.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1143
		 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1144
		 * For Symmetric Flow Control:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1145
		 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1146
		 *   LOCAL DEVICE  |   LINK PARTNER
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1147
		 * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1148
		 *-------|---------|-------|---------|--------------------
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1149
		 *   1   |   DC    |   1   |   DC    | E1000_fc_full
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1150
		 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1151
		 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1152
		if ((mii_nway_adv_reg & NWAY_AR_PAUSE) &&
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1153
		    (mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE)) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1154
			/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1155
			 * Now we need to check if the user selected Rx ONLY
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1156
			 * of pause frames.  In this case, we had to advertise
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1157
			 * FULL flow control because we could not advertise Rx
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1158
			 * ONLY. Hence, we must now check to see if we need to
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1159
			 * turn OFF the TRANSMISSION of PAUSE frames.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1160
			 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1161
			if (hw->fc.requested_mode == e1000_fc_full) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1162
				hw->fc.current_mode = e1000_fc_full;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1163
				e_dbg("Flow Control = FULL.\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1164
			} else {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1165
				hw->fc.current_mode = e1000_fc_rx_pause;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1166
				e_dbg("Flow Control = Rx PAUSE frames only.\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1167
			}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1168
		}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1169
		/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1170
		 * For receiving PAUSE frames ONLY.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1171
		 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1172
		 *   LOCAL DEVICE  |   LINK PARTNER
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1173
		 * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1174
		 *-------|---------|-------|---------|--------------------
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1175
		 *   0   |    1    |   1   |    1    | e1000_fc_tx_pause
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1176
		 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1177
		else if (!(mii_nway_adv_reg & NWAY_AR_PAUSE) &&
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1178
			 (mii_nway_adv_reg & NWAY_AR_ASM_DIR) &&
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1179
			 (mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE) &&
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1180
			 (mii_nway_lp_ability_reg & NWAY_LPAR_ASM_DIR)) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1181
			hw->fc.current_mode = e1000_fc_tx_pause;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1182
			e_dbg("Flow Control = Tx PAUSE frames only.\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1183
		}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1184
		/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1185
		 * For transmitting PAUSE frames ONLY.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1186
		 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1187
		 *   LOCAL DEVICE  |   LINK PARTNER
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1188
		 * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1189
		 *-------|---------|-------|---------|--------------------
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1190
		 *   1   |    1    |   0   |    1    | e1000_fc_rx_pause
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1191
		 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1192
		else if ((mii_nway_adv_reg & NWAY_AR_PAUSE) &&
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1193
			 (mii_nway_adv_reg & NWAY_AR_ASM_DIR) &&
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1194
			 !(mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE) &&
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1195
			 (mii_nway_lp_ability_reg & NWAY_LPAR_ASM_DIR)) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1196
			hw->fc.current_mode = e1000_fc_rx_pause;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1197
			e_dbg("Flow Control = Rx PAUSE frames only.\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1198
		} else {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1199
			/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1200
			 * Per the IEEE spec, at this point flow control
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1201
			 * should be disabled.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1202
			 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1203
			hw->fc.current_mode = e1000_fc_none;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1204
			e_dbg("Flow Control = NONE.\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1205
		}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1206
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1207
		/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1208
		 * Now we need to do one last check...  If we auto-
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1209
		 * negotiated to HALF DUPLEX, flow control should not be
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1210
		 * enabled per IEEE 802.3 spec.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1211
		 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1212
		ret_val = mac->ops.get_link_up_info(hw, &speed, &duplex);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1213
		if (ret_val) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1214
			e_dbg("Error getting link speed and duplex\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1215
			return ret_val;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1216
		}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1217
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1218
		if (duplex == HALF_DUPLEX)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1219
			hw->fc.current_mode = e1000_fc_none;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1220
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1221
		/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1222
		 * Now we call a subroutine to actually force the MAC
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1223
		 * controller to use the correct flow control settings.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1224
		 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1225
		ret_val = e1000e_force_mac_fc(hw);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1226
		if (ret_val) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1227
			e_dbg("Error forcing flow control settings\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1228
			return ret_val;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1229
		}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1230
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1231
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1232
	return 0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1233
}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1234
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1235
/**
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1236
 *  e1000e_get_speed_and_duplex_copper - Retrieve current speed/duplex
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1237
 *  @hw: pointer to the HW structure
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1238
 *  @speed: stores the current speed
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1239
 *  @duplex: stores the current duplex
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1240
 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1241
 *  Read the status register for the current speed/duplex and store the current
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1242
 *  speed and duplex for copper connections.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1243
 **/
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1244
s32 e1000e_get_speed_and_duplex_copper(struct e1000_hw *hw, u16 *speed,
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1245
				       u16 *duplex)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1246
{
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1247
	u32 status;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1248
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1249
	status = er32(STATUS);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1250
	if (status & E1000_STATUS_SPEED_1000)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1251
		*speed = SPEED_1000;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1252
	else if (status & E1000_STATUS_SPEED_100)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1253
		*speed = SPEED_100;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1254
	else
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1255
		*speed = SPEED_10;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1256
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1257
	if (status & E1000_STATUS_FD)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1258
		*duplex = FULL_DUPLEX;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1259
	else
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1260
		*duplex = HALF_DUPLEX;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1261
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1262
	e_dbg("%u Mbps, %s Duplex\n",
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1263
	      *speed == SPEED_1000 ? 1000 : *speed == SPEED_100 ? 100 : 10,
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1264
	      *duplex == FULL_DUPLEX ? "Full" : "Half");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1265
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1266
	return 0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1267
}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1268
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1269
/**
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1270
 *  e1000e_get_speed_and_duplex_fiber_serdes - Retrieve current speed/duplex
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1271
 *  @hw: pointer to the HW structure
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1272
 *  @speed: stores the current speed
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1273
 *  @duplex: stores the current duplex
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1274
 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1275
 *  Sets the speed and duplex to gigabit full duplex (the only possible option)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1276
 *  for fiber/serdes links.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1277
 **/
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1278
s32 e1000e_get_speed_and_duplex_fiber_serdes(struct e1000_hw *hw, u16 *speed,
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1279
					     u16 *duplex)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1280
{
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1281
	*speed = SPEED_1000;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1282
	*duplex = FULL_DUPLEX;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1283
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1284
	return 0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1285
}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1286
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1287
/**
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1288
 *  e1000e_get_hw_semaphore - Acquire hardware semaphore
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1289
 *  @hw: pointer to the HW structure
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1290
 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1291
 *  Acquire the HW semaphore to access the PHY or NVM
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1292
 **/
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1293
s32 e1000e_get_hw_semaphore(struct e1000_hw *hw)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1294
{
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1295
	u32 swsm;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1296
	s32 timeout = hw->nvm.word_size + 1;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1297
	s32 i = 0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1298
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1299
	/* Get the SW semaphore */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1300
	while (i < timeout) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1301
		swsm = er32(SWSM);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1302
		if (!(swsm & E1000_SWSM_SMBI))
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1303
			break;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1304
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1305
		udelay(50);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1306
		i++;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1307
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1308
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1309
	if (i == timeout) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1310
		e_dbg("Driver can't access device - SMBI bit is set.\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1311
		return -E1000_ERR_NVM;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1312
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1313
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1314
	/* Get the FW semaphore. */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1315
	for (i = 0; i < timeout; i++) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1316
		swsm = er32(SWSM);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1317
		ew32(SWSM, swsm | E1000_SWSM_SWESMBI);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1318
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1319
		/* Semaphore acquired if bit latched */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1320
		if (er32(SWSM) & E1000_SWSM_SWESMBI)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1321
			break;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1322
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1323
		udelay(50);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1324
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1325
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1326
	if (i == timeout) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1327
		/* Release semaphores */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1328
		e1000e_put_hw_semaphore(hw);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1329
		e_dbg("Driver can't access the NVM\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1330
		return -E1000_ERR_NVM;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1331
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1332
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1333
	return 0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1334
}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1335
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1336
/**
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1337
 *  e1000e_put_hw_semaphore - Release hardware semaphore
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1338
 *  @hw: pointer to the HW structure
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1339
 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1340
 *  Release hardware semaphore used to access the PHY or NVM
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1341
 **/
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1342
void e1000e_put_hw_semaphore(struct e1000_hw *hw)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1343
{
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1344
	u32 swsm;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1345
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1346
	swsm = er32(SWSM);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1347
	swsm &= ~(E1000_SWSM_SMBI | E1000_SWSM_SWESMBI);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1348
	ew32(SWSM, swsm);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1349
}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1350
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1351
/**
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1352
 *  e1000e_get_auto_rd_done - Check for auto read completion
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1353
 *  @hw: pointer to the HW structure
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1354
 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1355
 *  Check EEPROM for Auto Read done bit.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1356
 **/
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1357
s32 e1000e_get_auto_rd_done(struct e1000_hw *hw)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1358
{
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1359
	s32 i = 0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1360
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1361
	while (i < AUTO_READ_DONE_TIMEOUT) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1362
		if (er32(EECD) & E1000_EECD_AUTO_RD)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1363
			break;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1364
		usleep_range(1000, 2000);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1365
		i++;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1366
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1367
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1368
	if (i == AUTO_READ_DONE_TIMEOUT) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1369
		e_dbg("Auto read by HW from NVM has not completed.\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1370
		return -E1000_ERR_RESET;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1371
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1372
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1373
	return 0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1374
}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1375
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1376
/**
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1377
 *  e1000e_valid_led_default - Verify a valid default LED config
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1378
 *  @hw: pointer to the HW structure
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1379
 *  @data: pointer to the NVM (EEPROM)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1380
 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1381
 *  Read the EEPROM for the current default LED configuration.  If the
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1382
 *  LED configuration is not valid, set to a valid LED configuration.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1383
 **/
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1384
s32 e1000e_valid_led_default(struct e1000_hw *hw, u16 *data)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1385
{
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1386
	s32 ret_val;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1387
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1388
	ret_val = e1000_read_nvm(hw, NVM_ID_LED_SETTINGS, 1, data);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1389
	if (ret_val) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1390
		e_dbg("NVM Read Error\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1391
		return ret_val;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1392
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1393
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1394
	if (*data == ID_LED_RESERVED_0000 || *data == ID_LED_RESERVED_FFFF)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1395
		*data = ID_LED_DEFAULT;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1396
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1397
	return 0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1398
}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1399
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1400
/**
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1401
 *  e1000e_id_led_init_generic -
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1402
 *  @hw: pointer to the HW structure
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1403
 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1404
 **/
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1405
s32 e1000e_id_led_init_generic(struct e1000_hw *hw)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1406
{
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1407
	struct e1000_mac_info *mac = &hw->mac;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1408
	s32 ret_val;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1409
	const u32 ledctl_mask = 0x000000FF;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1410
	const u32 ledctl_on = E1000_LEDCTL_MODE_LED_ON;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1411
	const u32 ledctl_off = E1000_LEDCTL_MODE_LED_OFF;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1412
	u16 data, i, temp;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1413
	const u16 led_mask = 0x0F;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1414
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1415
	ret_val = hw->nvm.ops.valid_led_default(hw, &data);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1416
	if (ret_val)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1417
		return ret_val;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1418
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1419
	mac->ledctl_default = er32(LEDCTL);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1420
	mac->ledctl_mode1 = mac->ledctl_default;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1421
	mac->ledctl_mode2 = mac->ledctl_default;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1422
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1423
	for (i = 0; i < 4; i++) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1424
		temp = (data >> (i << 2)) & led_mask;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1425
		switch (temp) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1426
		case ID_LED_ON1_DEF2:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1427
		case ID_LED_ON1_ON2:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1428
		case ID_LED_ON1_OFF2:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1429
			mac->ledctl_mode1 &= ~(ledctl_mask << (i << 3));
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1430
			mac->ledctl_mode1 |= ledctl_on << (i << 3);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1431
			break;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1432
		case ID_LED_OFF1_DEF2:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1433
		case ID_LED_OFF1_ON2:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1434
		case ID_LED_OFF1_OFF2:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1435
			mac->ledctl_mode1 &= ~(ledctl_mask << (i << 3));
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1436
			mac->ledctl_mode1 |= ledctl_off << (i << 3);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1437
			break;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1438
		default:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1439
			/* Do nothing */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1440
			break;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1441
		}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1442
		switch (temp) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1443
		case ID_LED_DEF1_ON2:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1444
		case ID_LED_ON1_ON2:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1445
		case ID_LED_OFF1_ON2:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1446
			mac->ledctl_mode2 &= ~(ledctl_mask << (i << 3));
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1447
			mac->ledctl_mode2 |= ledctl_on << (i << 3);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1448
			break;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1449
		case ID_LED_DEF1_OFF2:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1450
		case ID_LED_ON1_OFF2:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1451
		case ID_LED_OFF1_OFF2:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1452
			mac->ledctl_mode2 &= ~(ledctl_mask << (i << 3));
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1453
			mac->ledctl_mode2 |= ledctl_off << (i << 3);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1454
			break;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1455
		default:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1456
			/* Do nothing */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1457
			break;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1458
		}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1459
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1460
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1461
	return 0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1462
}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1463
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1464
/**
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1465
 *  e1000e_setup_led_generic - Configures SW controllable LED
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1466
 *  @hw: pointer to the HW structure
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1467
 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1468
 *  This prepares the SW controllable LED for use and saves the current state
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1469
 *  of the LED so it can be later restored.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1470
 **/
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1471
s32 e1000e_setup_led_generic(struct e1000_hw *hw)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1472
{
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1473
	u32 ledctl;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1474
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1475
	if (hw->mac.ops.setup_led != e1000e_setup_led_generic)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1476
		return -E1000_ERR_CONFIG;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1477
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1478
	if (hw->phy.media_type == e1000_media_type_fiber) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1479
		ledctl = er32(LEDCTL);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1480
		hw->mac.ledctl_default = ledctl;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1481
		/* Turn off LED0 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1482
		ledctl &= ~(E1000_LEDCTL_LED0_IVRT | E1000_LEDCTL_LED0_BLINK |
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1483
			    E1000_LEDCTL_LED0_MODE_MASK);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1484
		ledctl |= (E1000_LEDCTL_MODE_LED_OFF <<
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1485
			   E1000_LEDCTL_LED0_MODE_SHIFT);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1486
		ew32(LEDCTL, ledctl);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1487
	} else if (hw->phy.media_type == e1000_media_type_copper) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1488
		ew32(LEDCTL, hw->mac.ledctl_mode1);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1489
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1490
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1491
	return 0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1492
}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1493
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1494
/**
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1495
 *  e1000e_cleanup_led_generic - Set LED config to default operation
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1496
 *  @hw: pointer to the HW structure
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1497
 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1498
 *  Remove the current LED configuration and set the LED configuration
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1499
 *  to the default value, saved from the EEPROM.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1500
 **/
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1501
s32 e1000e_cleanup_led_generic(struct e1000_hw *hw)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1502
{
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1503
	ew32(LEDCTL, hw->mac.ledctl_default);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1504
	return 0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1505
}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1506
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1507
/**
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1508
 *  e1000e_blink_led_generic - Blink LED
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1509
 *  @hw: pointer to the HW structure
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1510
 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1511
 *  Blink the LEDs which are set to be on.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1512
 **/
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1513
s32 e1000e_blink_led_generic(struct e1000_hw *hw)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1514
{
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1515
	u32 ledctl_blink = 0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1516
	u32 i;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1517
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1518
	if (hw->phy.media_type == e1000_media_type_fiber) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1519
		/* always blink LED0 for PCI-E fiber */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1520
		ledctl_blink = E1000_LEDCTL_LED0_BLINK |
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1521
		    (E1000_LEDCTL_MODE_LED_ON << E1000_LEDCTL_LED0_MODE_SHIFT);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1522
	} else {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1523
		/*
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1524
		 * set the blink bit for each LED that's "on" (0x0E)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1525
		 * in ledctl_mode2
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1526
		 */
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1527
		ledctl_blink = hw->mac.ledctl_mode2;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1528
		for (i = 0; i < 4; i++)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1529
			if (((hw->mac.ledctl_mode2 >> (i * 8)) & 0xFF) ==
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1530
			    E1000_LEDCTL_MODE_LED_ON)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1531
				ledctl_blink |= (E1000_LEDCTL_LED0_BLINK <<
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1532
						 (i * 8));
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1533
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1534
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1535
	ew32(LEDCTL, ledctl_blink);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1536
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1537
	return 0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1538
}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1539
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1540
/**
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1541
 *  e1000e_led_on_generic - Turn LED on
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1542
 *  @hw: pointer to the HW structure
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1543
 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1544
 *  Turn LED on.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1545
 **/
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1546
s32 e1000e_led_on_generic(struct e1000_hw *hw)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1547
{
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1548
	u32 ctrl;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1549
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1550
	switch (hw->phy.media_type) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1551
	case e1000_media_type_fiber:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1552
		ctrl = er32(CTRL);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1553
		ctrl &= ~E1000_CTRL_SWDPIN0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1554
		ctrl |= E1000_CTRL_SWDPIO0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1555
		ew32(CTRL, ctrl);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1556
		break;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1557
	case e1000_media_type_copper:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1558
		ew32(LEDCTL, hw->mac.ledctl_mode2);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1559
		break;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1560
	default:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1561
		break;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1562
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1563
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1564
	return 0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1565
}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1566
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1567
/**
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1568
 *  e1000e_led_off_generic - Turn LED off
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1569
 *  @hw: pointer to the HW structure
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1570
 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1571
 *  Turn LED off.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1572
 **/
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1573
s32 e1000e_led_off_generic(struct e1000_hw *hw)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1574
{
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1575
	u32 ctrl;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1576
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1577
	switch (hw->phy.media_type) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1578
	case e1000_media_type_fiber:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1579
		ctrl = er32(CTRL);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1580
		ctrl |= E1000_CTRL_SWDPIN0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1581
		ctrl |= E1000_CTRL_SWDPIO0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1582
		ew32(CTRL, ctrl);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1583
		break;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1584
	case e1000_media_type_copper:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1585
		ew32(LEDCTL, hw->mac.ledctl_mode1);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1586
		break;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1587
	default:
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1588
		break;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1589
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1590
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1591
	return 0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1592
}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1593
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1594
/**
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1595
 *  e1000e_set_pcie_no_snoop - Set PCI-express capabilities
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1596
 *  @hw: pointer to the HW structure
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1597
 *  @no_snoop: bitmap of snoop events
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1598
 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1599
 *  Set the PCI-express register to snoop for events enabled in 'no_snoop'.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1600
 **/
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1601
void e1000e_set_pcie_no_snoop(struct e1000_hw *hw, u32 no_snoop)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1602
{
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1603
	u32 gcr;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1604
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1605
	if (no_snoop) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1606
		gcr = er32(GCR);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1607
		gcr &= ~(PCIE_NO_SNOOP_ALL);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1608
		gcr |= no_snoop;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1609
		ew32(GCR, gcr);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1610
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1611
}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1612
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1613
/**
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1614
 *  e1000e_disable_pcie_master - Disables PCI-express master access
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1615
 *  @hw: pointer to the HW structure
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1616
 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1617
 *  Returns 0 if successful, else returns -10
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1618
 *  (-E1000_ERR_MASTER_REQUESTS_PENDING) if master disable bit has not caused
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1619
 *  the master requests to be disabled.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1620
 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1621
 *  Disables PCI-Express master access and verifies there are no pending
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1622
 *  requests.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1623
 **/
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1624
s32 e1000e_disable_pcie_master(struct e1000_hw *hw)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1625
{
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1626
	u32 ctrl;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1627
	s32 timeout = MASTER_DISABLE_TIMEOUT;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1628
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1629
	ctrl = er32(CTRL);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1630
	ctrl |= E1000_CTRL_GIO_MASTER_DISABLE;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1631
	ew32(CTRL, ctrl);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1632
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1633
	while (timeout) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1634
		if (!(er32(STATUS) & E1000_STATUS_GIO_MASTER_ENABLE))
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1635
			break;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1636
		udelay(100);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1637
		timeout--;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1638
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1639
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1640
	if (!timeout) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1641
		e_dbg("Master requests are pending.\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1642
		return -E1000_ERR_MASTER_REQUESTS_PENDING;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1643
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1644
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1645
	return 0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1646
}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1647
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1648
/**
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1649
 *  e1000e_reset_adaptive - Reset Adaptive Interframe Spacing
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1650
 *  @hw: pointer to the HW structure
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1651
 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1652
 *  Reset the Adaptive Interframe Spacing throttle to default values.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1653
 **/
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1654
void e1000e_reset_adaptive(struct e1000_hw *hw)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1655
{
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1656
	struct e1000_mac_info *mac = &hw->mac;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1657
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1658
	if (!mac->adaptive_ifs) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1659
		e_dbg("Not in Adaptive IFS mode!\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1660
		return;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1661
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1662
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1663
	mac->current_ifs_val = 0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1664
	mac->ifs_min_val = IFS_MIN;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1665
	mac->ifs_max_val = IFS_MAX;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1666
	mac->ifs_step_size = IFS_STEP;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1667
	mac->ifs_ratio = IFS_RATIO;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1668
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1669
	mac->in_ifs_mode = false;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1670
	ew32(AIT, 0);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1671
}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1672
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1673
/**
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1674
 *  e1000e_update_adaptive - Update Adaptive Interframe Spacing
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1675
 *  @hw: pointer to the HW structure
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1676
 *
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1677
 *  Update the Adaptive Interframe Spacing Throttle value based on the
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1678
 *  time between transmitted packets and time between collisions.
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1679
 **/
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1680
void e1000e_update_adaptive(struct e1000_hw *hw)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1681
{
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1682
	struct e1000_mac_info *mac = &hw->mac;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1683
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1684
	if (!mac->adaptive_ifs) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1685
		e_dbg("Not in Adaptive IFS mode!\n");
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1686
		return;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1687
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1688
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1689
	if ((mac->collision_delta * mac->ifs_ratio) > mac->tx_packet_delta) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1690
		if (mac->tx_packet_delta > MIN_NUM_XMITS) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1691
			mac->in_ifs_mode = true;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1692
			if (mac->current_ifs_val < mac->ifs_max_val) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1693
				if (!mac->current_ifs_val)
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1694
					mac->current_ifs_val = mac->ifs_min_val;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1695
				else
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1696
					mac->current_ifs_val +=
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1697
					    mac->ifs_step_size;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1698
				ew32(AIT, mac->current_ifs_val);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1699
			}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1700
		}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1701
	} else {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1702
		if (mac->in_ifs_mode &&
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1703
		    (mac->tx_packet_delta <= MIN_NUM_XMITS)) {
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1704
			mac->current_ifs_val = 0;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1705
			mac->in_ifs_mode = false;
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1706
			ew32(AIT, 0);
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1707
		}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1708
	}
5e9221a78855 Added e1000e driver for kernel 3.4.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1709
}