devices/e1000e/mac-3.12-ethercat.c
author Florian Pose <fp@gh.de>
Fri, 13 Jan 2017 16:47:27 +0100
branchstable-1.5
changeset 2665 2de506e60b21
parent 2586 5b89b4e38cdc
permissions -rw-r--r--
merge
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/*******************************************************************************
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  Intel PRO/1000 Linux driver
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  Copyright(c) 1999 - 2013 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 "e1000-3.12-ethercat.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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	/* 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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	hw->mac.ops.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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		hw->mac.ops.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;
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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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	/* 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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	hw->mac.ops.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_generic - 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_generic(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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	/* 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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	/* 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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   251
	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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   258
 *  @hw: pointer to the HW structure
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 *  @mc_addr: pointer to a multicast address
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 *
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 *  Generates a multicast address hash value which is used to determine
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   262
 *  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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	u32 hash_value, hash_mask;
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	u8 bit_shift = 0;
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	/* Register count multiplied by bits per register */
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	hash_mask = (hw->mac.mta_reg_count * 32) - 1;
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   271
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	/* For a mc_filter_type of 0, bit_shift is the number of left-shifts
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	 * where 0xFF would still fall within the hash mask.
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   274
	 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   275
	while (hash_mask >> bit_shift != 0xFF)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   276
		bit_shift++;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   277
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   278
	/* The portion of the address that is used for the hash table
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   279
	 * is determined by the mc_filter_type setting.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   280
	 * The algorithm is such that there is a total of 8 bits of shifting.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   281
	 * The bit_shift for a mc_filter_type of 0 represents the number of
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   282
	 * left-shifts where the MSB of mc_addr[5] would still fall within
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   283
	 * the hash_mask.  Case 0 does this exactly.  Since there are a total
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   284
	 * of 8 bits of shifting, then mc_addr[4] will shift right the
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   285
	 * remaining number of bits. Thus 8 - bit_shift.  The rest of the
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   286
	 * cases are a variation of this algorithm...essentially raising the
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   287
	 * number of bits to shift mc_addr[5] left, while still keeping the
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   288
	 * 8-bit shifting total.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   289
	 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   290
	 * For example, given the following Destination MAC Address and an
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   291
	 * mta register count of 128 (thus a 4096-bit vector and 0xFFF mask),
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   292
	 * we can see that the bit_shift for case 0 is 4.  These are the hash
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   293
	 * values resulting from each mc_filter_type...
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   294
	 * [0] [1] [2] [3] [4] [5]
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   295
	 * 01  AA  00  12  34  56
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   296
	 * LSB           MSB
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   297
	 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   298
	 * case 0: hash_value = ((0x34 >> 4) | (0x56 << 4)) & 0xFFF = 0x563
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   299
	 * case 1: hash_value = ((0x34 >> 3) | (0x56 << 5)) & 0xFFF = 0xAC6
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   300
	 * case 2: hash_value = ((0x34 >> 2) | (0x56 << 6)) & 0xFFF = 0x163
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   301
	 * case 3: hash_value = ((0x34 >> 0) | (0x56 << 8)) & 0xFFF = 0x634
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   302
	 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   303
	switch (hw->mac.mc_filter_type) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   304
	default:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   305
	case 0:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   306
		break;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   307
	case 1:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   308
		bit_shift += 1;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   309
		break;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   310
	case 2:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   311
		bit_shift += 2;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   312
		break;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   313
	case 3:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   314
		bit_shift += 4;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   315
		break;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   316
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   317
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   318
	hash_value = hash_mask & (((mc_addr[4] >> (8 - bit_shift)) |
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   319
				   (((u16)mc_addr[5]) << bit_shift)));
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   320
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   321
	return hash_value;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   322
}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   323
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   324
/**
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   325
 *  e1000e_update_mc_addr_list_generic - Update Multicast addresses
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   326
 *  @hw: pointer to the HW structure
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   327
 *  @mc_addr_list: array of multicast addresses to program
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   328
 *  @mc_addr_count: number of multicast addresses to program
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   329
 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   330
 *  Updates entire Multicast Table Array.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   331
 *  The caller must have a packed mc_addr_list of multicast addresses.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   332
 **/
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   333
void e1000e_update_mc_addr_list_generic(struct e1000_hw *hw,
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   334
					u8 *mc_addr_list, u32 mc_addr_count)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   335
{
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   336
	u32 hash_value, hash_bit, hash_reg;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   337
	int i;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   338
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   339
	/* clear mta_shadow */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   340
	memset(&hw->mac.mta_shadow, 0, sizeof(hw->mac.mta_shadow));
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   341
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   342
	/* update mta_shadow from mc_addr_list */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   343
	for (i = 0; (u32)i < mc_addr_count; i++) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   344
		hash_value = e1000_hash_mc_addr(hw, mc_addr_list);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   345
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   346
		hash_reg = (hash_value >> 5) & (hw->mac.mta_reg_count - 1);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   347
		hash_bit = hash_value & 0x1F;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   348
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   349
		hw->mac.mta_shadow[hash_reg] |= (1 << hash_bit);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   350
		mc_addr_list += (ETH_ALEN);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   351
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   352
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   353
	/* replace the entire MTA table */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   354
	for (i = hw->mac.mta_reg_count - 1; i >= 0; i--)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   355
		E1000_WRITE_REG_ARRAY(hw, E1000_MTA, i, hw->mac.mta_shadow[i]);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   356
	e1e_flush();
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   357
}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   358
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   359
/**
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   360
 *  e1000e_clear_hw_cntrs_base - Clear base hardware counters
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   361
 *  @hw: pointer to the HW structure
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   362
 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   363
 *  Clears the base hardware counters by reading the counter registers.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   364
 **/
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   365
void e1000e_clear_hw_cntrs_base(struct e1000_hw *hw)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   366
{
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   367
	er32(CRCERRS);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   368
	er32(SYMERRS);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   369
	er32(MPC);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   370
	er32(SCC);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   371
	er32(ECOL);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   372
	er32(MCC);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   373
	er32(LATECOL);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   374
	er32(COLC);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   375
	er32(DC);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   376
	er32(SEC);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   377
	er32(RLEC);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   378
	er32(XONRXC);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   379
	er32(XONTXC);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   380
	er32(XOFFRXC);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   381
	er32(XOFFTXC);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   382
	er32(FCRUC);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   383
	er32(GPRC);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   384
	er32(BPRC);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   385
	er32(MPRC);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   386
	er32(GPTC);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   387
	er32(GORCL);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   388
	er32(GORCH);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   389
	er32(GOTCL);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   390
	er32(GOTCH);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   391
	er32(RNBC);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   392
	er32(RUC);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   393
	er32(RFC);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   394
	er32(ROC);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   395
	er32(RJC);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   396
	er32(TORL);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   397
	er32(TORH);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   398
	er32(TOTL);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   399
	er32(TOTH);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   400
	er32(TPR);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   401
	er32(TPT);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   402
	er32(MPTC);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   403
	er32(BPTC);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   404
}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   405
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   406
/**
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   407
 *  e1000e_check_for_copper_link - Check for link (Copper)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   408
 *  @hw: pointer to the HW structure
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   409
 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   410
 *  Checks to see of the link status of the hardware has changed.  If a
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   411
 *  change in link status has been detected, then we read the PHY registers
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   412
 *  to get the current speed/duplex if link exists.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   413
 **/
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   414
s32 e1000e_check_for_copper_link(struct e1000_hw *hw)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   415
{
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   416
	struct e1000_mac_info *mac = &hw->mac;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   417
	s32 ret_val;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   418
	bool link;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   419
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   420
	/* We only want to go out to the PHY registers to see if Auto-Neg
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   421
	 * has completed and/or if our link status has changed.  The
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   422
	 * get_link_status flag is set upon receiving a Link Status
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   423
	 * Change or Rx Sequence Error interrupt.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   424
	 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   425
	if (!mac->get_link_status)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   426
		return 0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   427
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   428
	/* First we want to see if the MII Status Register reports
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   429
	 * link.  If so, then we want to get the current speed/duplex
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   430
	 * of the PHY.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   431
	 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   432
	ret_val = e1000e_phy_has_link_generic(hw, 1, 0, &link);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   433
	if (ret_val)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   434
		return ret_val;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   435
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   436
	if (!link)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   437
		return 0;	/* No link detected */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   438
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   439
	mac->get_link_status = false;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   440
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   441
	/* Check if there was DownShift, must be checked
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   442
	 * immediately after link-up
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   443
	 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   444
	e1000e_check_downshift(hw);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   445
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   446
	/* If we are forcing speed/duplex, then we simply return since
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   447
	 * we have already determined whether we have link or not.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   448
	 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   449
	if (!mac->autoneg)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   450
		return -E1000_ERR_CONFIG;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   451
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   452
	/* Auto-Neg is enabled.  Auto Speed Detection takes care
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   453
	 * of MAC speed/duplex configuration.  So we only need to
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   454
	 * configure Collision Distance in the MAC.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   455
	 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   456
	mac->ops.config_collision_dist(hw);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   457
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   458
	/* Configure Flow Control now that Auto-Neg has completed.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   459
	 * First, we need to restore the desired flow control
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   460
	 * settings because we may have had to re-autoneg with a
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   461
	 * different link partner.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   462
	 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   463
	ret_val = e1000e_config_fc_after_link_up(hw);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   464
	if (ret_val)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   465
		e_dbg("Error configuring flow control\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   466
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   467
	return ret_val;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   468
}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   469
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   470
/**
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   471
 *  e1000e_check_for_fiber_link - Check for link (Fiber)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   472
 *  @hw: pointer to the HW structure
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   473
 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   474
 *  Checks for link up on the hardware.  If link is not up and we have
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   475
 *  a signal, then we need to force link up.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   476
 **/
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   477
s32 e1000e_check_for_fiber_link(struct e1000_hw *hw)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   478
{
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   479
	struct e1000_mac_info *mac = &hw->mac;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   480
	u32 rxcw;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   481
	u32 ctrl;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   482
	u32 status;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   483
	s32 ret_val;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   484
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   485
	ctrl = er32(CTRL);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   486
	status = er32(STATUS);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   487
	rxcw = er32(RXCW);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   488
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   489
	/* If we don't have link (auto-negotiation failed or link partner
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   490
	 * cannot auto-negotiate), the cable is plugged in (we have signal),
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   491
	 * and our link partner is not trying to auto-negotiate with us (we
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   492
	 * are receiving idles or data), we need to force link up. We also
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   493
	 * need to give auto-negotiation time to complete, in case the cable
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   494
	 * was just plugged in. The autoneg_failed flag does this.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   495
	 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   496
	/* (ctrl & E1000_CTRL_SWDPIN1) == 1 == have signal */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   497
	if ((ctrl & E1000_CTRL_SWDPIN1) && !(status & E1000_STATUS_LU) &&
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   498
	    !(rxcw & E1000_RXCW_C)) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   499
		if (!mac->autoneg_failed) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   500
			mac->autoneg_failed = true;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   501
			return 0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   502
		}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   503
		e_dbg("NOT Rx'ing /C/, disable AutoNeg and force link.\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   504
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   505
		/* Disable auto-negotiation in the TXCW register */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   506
		ew32(TXCW, (mac->txcw & ~E1000_TXCW_ANE));
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   507
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   508
		/* Force link-up and also force full-duplex. */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   509
		ctrl = er32(CTRL);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   510
		ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FD);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   511
		ew32(CTRL, ctrl);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   512
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   513
		/* Configure Flow Control after forcing link up. */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   514
		ret_val = e1000e_config_fc_after_link_up(hw);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   515
		if (ret_val) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   516
			e_dbg("Error configuring flow control\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   517
			return ret_val;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   518
		}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   519
	} else if ((ctrl & E1000_CTRL_SLU) && (rxcw & E1000_RXCW_C)) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   520
		/* If we are forcing link and we are receiving /C/ ordered
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   521
		 * sets, re-enable auto-negotiation in the TXCW register
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   522
		 * and disable forced link in the Device Control register
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   523
		 * in an attempt to auto-negotiate with our link partner.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   524
		 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   525
		e_dbg("Rx'ing /C/, enable AutoNeg and stop forcing link.\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   526
		ew32(TXCW, mac->txcw);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   527
		ew32(CTRL, (ctrl & ~E1000_CTRL_SLU));
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   528
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   529
		mac->serdes_has_link = true;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   530
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   531
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   532
	return 0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   533
}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   534
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   535
/**
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   536
 *  e1000e_check_for_serdes_link - Check for link (Serdes)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   537
 *  @hw: pointer to the HW structure
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   538
 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   539
 *  Checks for link up on the hardware.  If link is not up and we have
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   540
 *  a signal, then we need to force link up.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   541
 **/
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   542
s32 e1000e_check_for_serdes_link(struct e1000_hw *hw)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   543
{
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   544
	struct e1000_mac_info *mac = &hw->mac;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   545
	u32 rxcw;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   546
	u32 ctrl;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   547
	u32 status;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   548
	s32 ret_val;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   549
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   550
	ctrl = er32(CTRL);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   551
	status = er32(STATUS);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   552
	rxcw = er32(RXCW);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   553
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   554
	/* If we don't have link (auto-negotiation failed or link partner
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   555
	 * cannot auto-negotiate), and our link partner is not trying to
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   556
	 * auto-negotiate with us (we are receiving idles or data),
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   557
	 * we need to force link up. We also need to give auto-negotiation
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   558
	 * time to complete.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   559
	 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   560
	/* (ctrl & E1000_CTRL_SWDPIN1) == 1 == have signal */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   561
	if (!(status & E1000_STATUS_LU) && !(rxcw & E1000_RXCW_C)) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   562
		if (!mac->autoneg_failed) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   563
			mac->autoneg_failed = true;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   564
			return 0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   565
		}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   566
		e_dbg("NOT Rx'ing /C/, disable AutoNeg and force link.\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   567
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   568
		/* Disable auto-negotiation in the TXCW register */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   569
		ew32(TXCW, (mac->txcw & ~E1000_TXCW_ANE));
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   570
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   571
		/* Force link-up and also force full-duplex. */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   572
		ctrl = er32(CTRL);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   573
		ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FD);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   574
		ew32(CTRL, ctrl);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   575
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   576
		/* Configure Flow Control after forcing link up. */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   577
		ret_val = e1000e_config_fc_after_link_up(hw);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   578
		if (ret_val) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   579
			e_dbg("Error configuring flow control\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   580
			return ret_val;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   581
		}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   582
	} else if ((ctrl & E1000_CTRL_SLU) && (rxcw & E1000_RXCW_C)) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   583
		/* If we are forcing link and we are receiving /C/ ordered
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   584
		 * sets, re-enable auto-negotiation in the TXCW register
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   585
		 * and disable forced link in the Device Control register
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   586
		 * in an attempt to auto-negotiate with our link partner.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   587
		 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   588
		e_dbg("Rx'ing /C/, enable AutoNeg and stop forcing link.\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   589
		ew32(TXCW, mac->txcw);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   590
		ew32(CTRL, (ctrl & ~E1000_CTRL_SLU));
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   591
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   592
		mac->serdes_has_link = true;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   593
	} else if (!(E1000_TXCW_ANE & er32(TXCW))) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   594
		/* If we force link for non-auto-negotiation switch, check
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   595
		 * link status based on MAC synchronization for internal
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   596
		 * serdes media type.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   597
		 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   598
		/* SYNCH bit and IV bit are sticky. */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   599
		usleep_range(10, 20);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   600
		rxcw = er32(RXCW);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   601
		if (rxcw & E1000_RXCW_SYNCH) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   602
			if (!(rxcw & E1000_RXCW_IV)) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   603
				mac->serdes_has_link = true;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   604
				e_dbg("SERDES: Link up - forced.\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   605
			}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   606
		} else {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   607
			mac->serdes_has_link = false;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   608
			e_dbg("SERDES: Link down - force failed.\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   609
		}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   610
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   611
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   612
	if (E1000_TXCW_ANE & er32(TXCW)) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   613
		status = er32(STATUS);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   614
		if (status & E1000_STATUS_LU) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   615
			/* SYNCH bit and IV bit are sticky, so reread rxcw. */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   616
			usleep_range(10, 20);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   617
			rxcw = er32(RXCW);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   618
			if (rxcw & E1000_RXCW_SYNCH) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   619
				if (!(rxcw & E1000_RXCW_IV)) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   620
					mac->serdes_has_link = true;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   621
					e_dbg("SERDES: Link up - autoneg completed successfully.\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   622
				} else {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   623
					mac->serdes_has_link = false;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   624
					e_dbg("SERDES: Link down - invalid codewords detected in autoneg.\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   625
				}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   626
			} else {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   627
				mac->serdes_has_link = false;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   628
				e_dbg("SERDES: Link down - no sync.\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   629
			}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   630
		} else {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   631
			mac->serdes_has_link = false;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   632
			e_dbg("SERDES: Link down - autoneg failed\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   633
		}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   634
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   635
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   636
	return 0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   637
}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   638
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   639
/**
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   640
 *  e1000_set_default_fc_generic - Set flow control default values
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   641
 *  @hw: pointer to the HW structure
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   642
 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   643
 *  Read the EEPROM for the default values for flow control and store the
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   644
 *  values.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   645
 **/
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   646
static s32 e1000_set_default_fc_generic(struct e1000_hw *hw)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   647
{
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   648
	s32 ret_val;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   649
	u16 nvm_data;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   650
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   651
	/* Read and store word 0x0F of the EEPROM. This word contains bits
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   652
	 * that determine the hardware's default PAUSE (flow control) mode,
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   653
	 * a bit that determines whether the HW defaults to enabling or
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   654
	 * disabling auto-negotiation, and the direction of the
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   655
	 * SW defined pins. If there is no SW over-ride of the flow
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   656
	 * control setting, then the variable hw->fc will
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   657
	 * be initialized based on a value in the EEPROM.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   658
	 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   659
	ret_val = e1000_read_nvm(hw, NVM_INIT_CONTROL2_REG, 1, &nvm_data);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   660
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   661
	if (ret_val) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   662
		e_dbg("NVM Read Error\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   663
		return ret_val;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   664
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   665
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   666
	if (!(nvm_data & NVM_WORD0F_PAUSE_MASK))
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   667
		hw->fc.requested_mode = e1000_fc_none;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   668
	else if ((nvm_data & NVM_WORD0F_PAUSE_MASK) == NVM_WORD0F_ASM_DIR)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   669
		hw->fc.requested_mode = e1000_fc_tx_pause;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   670
	else
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   671
		hw->fc.requested_mode = e1000_fc_full;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   672
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   673
	return 0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   674
}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   675
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   676
/**
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   677
 *  e1000e_setup_link_generic - Setup flow control and link settings
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   678
 *  @hw: pointer to the HW structure
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   679
 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   680
 *  Determines which flow control settings to use, then configures flow
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   681
 *  control.  Calls the appropriate media-specific link configuration
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   682
 *  function.  Assuming the adapter has a valid link partner, a valid link
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   683
 *  should be established.  Assumes the hardware has previously been reset
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   684
 *  and the transmitter and receiver are not enabled.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   685
 **/
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   686
s32 e1000e_setup_link_generic(struct e1000_hw *hw)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   687
{
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   688
	s32 ret_val;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   689
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   690
	/* In the case of the phy reset being blocked, we already have a link.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   691
	 * We do not need to set it up again.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   692
	 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   693
	if (hw->phy.ops.check_reset_block && hw->phy.ops.check_reset_block(hw))
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   694
		return 0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   695
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   696
	/* If requested flow control is set to default, set flow control
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   697
	 * based on the EEPROM flow control settings.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   698
	 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   699
	if (hw->fc.requested_mode == e1000_fc_default) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   700
		ret_val = e1000_set_default_fc_generic(hw);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   701
		if (ret_val)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   702
			return ret_val;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   703
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   704
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   705
	/* Save off the requested flow control mode for use later.  Depending
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   706
	 * on the link partner's capabilities, we may or may not use this mode.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   707
	 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   708
	hw->fc.current_mode = hw->fc.requested_mode;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   709
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   710
	e_dbg("After fix-ups FlowControl is now = %x\n", hw->fc.current_mode);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   711
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   712
	/* Call the necessary media_type subroutine to configure the link. */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   713
	ret_val = hw->mac.ops.setup_physical_interface(hw);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   714
	if (ret_val)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   715
		return ret_val;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   716
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   717
	/* Initialize the flow control address, type, and PAUSE timer
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   718
	 * registers to their default values.  This is done even if flow
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   719
	 * control is disabled, because it does not hurt anything to
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   720
	 * initialize these registers.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   721
	 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   722
	e_dbg("Initializing the Flow Control address, type and timer regs\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   723
	ew32(FCT, FLOW_CONTROL_TYPE);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   724
	ew32(FCAH, FLOW_CONTROL_ADDRESS_HIGH);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   725
	ew32(FCAL, FLOW_CONTROL_ADDRESS_LOW);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   726
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   727
	ew32(FCTTV, hw->fc.pause_time);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   728
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   729
	return e1000e_set_fc_watermarks(hw);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   730
}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   731
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   732
/**
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   733
 *  e1000_commit_fc_settings_generic - Configure flow control
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   734
 *  @hw: pointer to the HW structure
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   735
 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   736
 *  Write the flow control settings to the Transmit Config Word Register (TXCW)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   737
 *  base on the flow control settings in e1000_mac_info.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   738
 **/
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   739
static s32 e1000_commit_fc_settings_generic(struct e1000_hw *hw)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   740
{
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   741
	struct e1000_mac_info *mac = &hw->mac;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   742
	u32 txcw;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   743
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   744
	/* Check for a software override of the flow control settings, and
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   745
	 * setup the device accordingly.  If auto-negotiation is enabled, then
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   746
	 * software will have to set the "PAUSE" bits to the correct value in
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   747
	 * the Transmit Config Word Register (TXCW) and re-start auto-
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   748
	 * negotiation.  However, if auto-negotiation is disabled, then
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   749
	 * software will have to manually configure the two flow control enable
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   750
	 * bits in the CTRL register.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   751
	 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   752
	 * The possible values of the "fc" parameter are:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   753
	 *      0:  Flow control is completely disabled
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   754
	 *      1:  Rx flow control is enabled (we can receive pause frames,
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   755
	 *          but not send pause frames).
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   756
	 *      2:  Tx flow control is enabled (we can send pause frames but we
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   757
	 *          do not support receiving pause frames).
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   758
	 *      3:  Both Rx and Tx flow control (symmetric) are enabled.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   759
	 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   760
	switch (hw->fc.current_mode) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   761
	case e1000_fc_none:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   762
		/* Flow control completely disabled by a software over-ride. */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   763
		txcw = (E1000_TXCW_ANE | E1000_TXCW_FD);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   764
		break;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   765
	case e1000_fc_rx_pause:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   766
		/* Rx Flow control is enabled and Tx Flow control is disabled
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   767
		 * by a software over-ride. Since there really isn't a way to
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   768
		 * advertise that we are capable of Rx Pause ONLY, we will
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   769
		 * advertise that we support both symmetric and asymmetric Rx
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   770
		 * PAUSE.  Later, we will disable the adapter's ability to send
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   771
		 * PAUSE frames.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   772
		 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   773
		txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_PAUSE_MASK);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   774
		break;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   775
	case e1000_fc_tx_pause:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   776
		/* Tx Flow control is enabled, and Rx Flow control is disabled,
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   777
		 * by a software over-ride.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   778
		 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   779
		txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_ASM_DIR);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   780
		break;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   781
	case e1000_fc_full:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   782
		/* Flow control (both Rx and Tx) is enabled by a software
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   783
		 * over-ride.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   784
		 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   785
		txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_PAUSE_MASK);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   786
		break;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   787
	default:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   788
		e_dbg("Flow control param set incorrectly\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   789
		return -E1000_ERR_CONFIG;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   790
		break;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   791
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   792
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   793
	ew32(TXCW, txcw);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   794
	mac->txcw = txcw;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   795
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   796
	return 0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   797
}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   798
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   799
/**
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   800
 *  e1000_poll_fiber_serdes_link_generic - Poll for link up
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   801
 *  @hw: pointer to the HW structure
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   802
 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   803
 *  Polls for link up by reading the status register, if link fails to come
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   804
 *  up with auto-negotiation, then the link is forced if a signal is detected.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   805
 **/
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   806
static s32 e1000_poll_fiber_serdes_link_generic(struct e1000_hw *hw)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   807
{
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   808
	struct e1000_mac_info *mac = &hw->mac;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   809
	u32 i, status;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   810
	s32 ret_val;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   811
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   812
	/* If we have a signal (the cable is plugged in, or assumed true for
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   813
	 * serdes media) then poll for a "Link-Up" indication in the Device
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   814
	 * Status Register.  Time-out if a link isn't seen in 500 milliseconds
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   815
	 * seconds (Auto-negotiation should complete in less than 500
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   816
	 * milliseconds even if the other end is doing it in SW).
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   817
	 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   818
	for (i = 0; i < FIBER_LINK_UP_LIMIT; i++) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   819
		usleep_range(10000, 20000);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   820
		status = er32(STATUS);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   821
		if (status & E1000_STATUS_LU)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   822
			break;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   823
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   824
	if (i == FIBER_LINK_UP_LIMIT) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   825
		e_dbg("Never got a valid link from auto-neg!!!\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   826
		mac->autoneg_failed = true;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   827
		/* AutoNeg failed to achieve a link, so we'll call
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   828
		 * mac->check_for_link. This routine will force the
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   829
		 * link up if we detect a signal. This will allow us to
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   830
		 * communicate with non-autonegotiating link partners.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   831
		 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   832
		ret_val = mac->ops.check_for_link(hw);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   833
		if (ret_val) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   834
			e_dbg("Error while checking for link\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   835
			return ret_val;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   836
		}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   837
		mac->autoneg_failed = false;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   838
	} else {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   839
		mac->autoneg_failed = false;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   840
		e_dbg("Valid Link Found\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   841
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   842
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   843
	return 0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   844
}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   845
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   846
/**
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   847
 *  e1000e_setup_fiber_serdes_link - Setup link for fiber/serdes
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   848
 *  @hw: pointer to the HW structure
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   849
 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   850
 *  Configures collision distance and flow control for fiber and serdes
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   851
 *  links.  Upon successful setup, poll for link.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   852
 **/
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   853
s32 e1000e_setup_fiber_serdes_link(struct e1000_hw *hw)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   854
{
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   855
	u32 ctrl;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   856
	s32 ret_val;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   857
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   858
	ctrl = er32(CTRL);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   859
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   860
	/* Take the link out of reset */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   861
	ctrl &= ~E1000_CTRL_LRST;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   862
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   863
	hw->mac.ops.config_collision_dist(hw);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   864
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   865
	ret_val = e1000_commit_fc_settings_generic(hw);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   866
	if (ret_val)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   867
		return ret_val;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   868
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   869
	/* Since auto-negotiation is enabled, take the link out of reset (the
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   870
	 * link will be in reset, because we previously reset the chip). This
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   871
	 * will restart auto-negotiation.  If auto-negotiation is successful
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   872
	 * then the link-up status bit will be set and the flow control enable
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   873
	 * bits (RFCE and TFCE) will be set according to their negotiated value.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   874
	 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   875
	e_dbg("Auto-negotiation enabled\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   876
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   877
	ew32(CTRL, ctrl);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   878
	e1e_flush();
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   879
	usleep_range(1000, 2000);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   880
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   881
	/* For these adapters, the SW definable pin 1 is set when the optics
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   882
	 * detect a signal.  If we have a signal, then poll for a "Link-Up"
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   883
	 * indication.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   884
	 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   885
	if (hw->phy.media_type == e1000_media_type_internal_serdes ||
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   886
	    (er32(CTRL) & E1000_CTRL_SWDPIN1)) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   887
		ret_val = e1000_poll_fiber_serdes_link_generic(hw);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   888
	} else {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   889
		e_dbg("No signal detected\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   890
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   891
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   892
	return ret_val;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   893
}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   894
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   895
/**
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   896
 *  e1000e_config_collision_dist_generic - Configure collision distance
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   897
 *  @hw: pointer to the HW structure
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   898
 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   899
 *  Configures the collision distance to the default value and is used
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   900
 *  during link setup.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   901
 **/
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   902
void e1000e_config_collision_dist_generic(struct e1000_hw *hw)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   903
{
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   904
	u32 tctl;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   905
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   906
	tctl = er32(TCTL);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   907
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   908
	tctl &= ~E1000_TCTL_COLD;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   909
	tctl |= E1000_COLLISION_DISTANCE << E1000_COLD_SHIFT;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   910
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   911
	ew32(TCTL, tctl);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   912
	e1e_flush();
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   913
}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   914
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   915
/**
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   916
 *  e1000e_set_fc_watermarks - Set flow control high/low watermarks
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   917
 *  @hw: pointer to the HW structure
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   918
 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   919
 *  Sets the flow control high/low threshold (watermark) registers.  If
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   920
 *  flow control XON frame transmission is enabled, then set XON frame
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   921
 *  transmission as well.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   922
 **/
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   923
s32 e1000e_set_fc_watermarks(struct e1000_hw *hw)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   924
{
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   925
	u32 fcrtl = 0, fcrth = 0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   926
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   927
	/* Set the flow control receive threshold registers.  Normally,
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   928
	 * these registers will be set to a default threshold that may be
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   929
	 * adjusted later by the driver's runtime code.  However, if the
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   930
	 * ability to transmit pause frames is not enabled, then these
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   931
	 * registers will be set to 0.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   932
	 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   933
	if (hw->fc.current_mode & e1000_fc_tx_pause) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   934
		/* We need to set up the Receive Threshold high and low water
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   935
		 * marks as well as (optionally) enabling the transmission of
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   936
		 * XON frames.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   937
		 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   938
		fcrtl = hw->fc.low_water;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   939
		if (hw->fc.send_xon)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   940
			fcrtl |= E1000_FCRTL_XONE;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   941
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   942
		fcrth = hw->fc.high_water;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   943
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   944
	ew32(FCRTL, fcrtl);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   945
	ew32(FCRTH, fcrth);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   946
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   947
	return 0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   948
}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   949
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   950
/**
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   951
 *  e1000e_force_mac_fc - Force the MAC's flow control settings
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   952
 *  @hw: pointer to the HW structure
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   953
 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   954
 *  Force the MAC's flow control settings.  Sets the TFCE and RFCE bits in the
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   955
 *  device control register to reflect the adapter settings.  TFCE and RFCE
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   956
 *  need to be explicitly set by software when a copper PHY is used because
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   957
 *  autonegotiation is managed by the PHY rather than the MAC.  Software must
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   958
 *  also configure these bits when link is forced on a fiber connection.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   959
 **/
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   960
s32 e1000e_force_mac_fc(struct e1000_hw *hw)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   961
{
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   962
	u32 ctrl;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   963
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   964
	ctrl = er32(CTRL);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   965
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   966
	/* Because we didn't get link via the internal auto-negotiation
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   967
	 * mechanism (we either forced link or we got link via PHY
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   968
	 * auto-neg), we have to manually enable/disable transmit an
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   969
	 * receive flow control.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   970
	 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   971
	 * The "Case" statement below enables/disable flow control
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   972
	 * according to the "hw->fc.current_mode" parameter.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   973
	 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   974
	 * The possible values of the "fc" parameter are:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   975
	 *      0:  Flow control is completely disabled
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   976
	 *      1:  Rx flow control is enabled (we can receive pause
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   977
	 *          frames but not send pause frames).
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   978
	 *      2:  Tx flow control is enabled (we can send pause frames
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   979
	 *          frames but we do not receive pause frames).
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   980
	 *      3:  Both Rx and Tx flow control (symmetric) is enabled.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   981
	 *  other:  No other values should be possible at this point.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   982
	 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   983
	e_dbg("hw->fc.current_mode = %u\n", hw->fc.current_mode);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   984
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   985
	switch (hw->fc.current_mode) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   986
	case e1000_fc_none:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   987
		ctrl &= (~(E1000_CTRL_TFCE | E1000_CTRL_RFCE));
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   988
		break;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   989
	case e1000_fc_rx_pause:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   990
		ctrl &= (~E1000_CTRL_TFCE);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   991
		ctrl |= E1000_CTRL_RFCE;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   992
		break;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   993
	case e1000_fc_tx_pause:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   994
		ctrl &= (~E1000_CTRL_RFCE);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   995
		ctrl |= E1000_CTRL_TFCE;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   996
		break;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   997
	case e1000_fc_full:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   998
		ctrl |= (E1000_CTRL_TFCE | E1000_CTRL_RFCE);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   999
		break;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1000
	default:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1001
		e_dbg("Flow control param set incorrectly\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1002
		return -E1000_ERR_CONFIG;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1003
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1004
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1005
	ew32(CTRL, ctrl);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1006
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1007
	return 0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1008
}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1009
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1010
/**
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1011
 *  e1000e_config_fc_after_link_up - Configures flow control after link
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1012
 *  @hw: pointer to the HW structure
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1013
 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1014
 *  Checks the status of auto-negotiation after link up to ensure that the
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1015
 *  speed and duplex were not forced.  If the link needed to be forced, then
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1016
 *  flow control needs to be forced also.  If auto-negotiation is enabled
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1017
 *  and did not fail, then we configure flow control based on our link
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1018
 *  partner.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1019
 **/
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1020
s32 e1000e_config_fc_after_link_up(struct e1000_hw *hw)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1021
{
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1022
	struct e1000_mac_info *mac = &hw->mac;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1023
	s32 ret_val = 0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1024
	u32 pcs_status_reg, pcs_adv_reg, pcs_lp_ability_reg, pcs_ctrl_reg;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1025
	u16 mii_status_reg, mii_nway_adv_reg, mii_nway_lp_ability_reg;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1026
	u16 speed, duplex;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1027
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1028
	/* Check for the case where we have fiber media and auto-neg failed
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1029
	 * so we had to force link.  In this case, we need to force the
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1030
	 * configuration of the MAC to match the "fc" parameter.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1031
	 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1032
	if (mac->autoneg_failed) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1033
		if (hw->phy.media_type == e1000_media_type_fiber ||
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1034
		    hw->phy.media_type == e1000_media_type_internal_serdes)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1035
			ret_val = e1000e_force_mac_fc(hw);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1036
	} else {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1037
		if (hw->phy.media_type == e1000_media_type_copper)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1038
			ret_val = e1000e_force_mac_fc(hw);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1039
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1040
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1041
	if (ret_val) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1042
		e_dbg("Error forcing flow control settings\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1043
		return ret_val;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1044
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1045
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1046
	/* Check for the case where we have copper media and auto-neg is
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1047
	 * enabled.  In this case, we need to check and see if Auto-Neg
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1048
	 * has completed, and if so, how the PHY and link partner has
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1049
	 * flow control configured.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1050
	 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1051
	if ((hw->phy.media_type == e1000_media_type_copper) && mac->autoneg) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1052
		/* Read the MII Status Register and check to see if AutoNeg
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1053
		 * has completed.  We read this twice because this reg has
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1054
		 * some "sticky" (latched) bits.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1055
		 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1056
		ret_val = e1e_rphy(hw, MII_BMSR, &mii_status_reg);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1057
		if (ret_val)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1058
			return ret_val;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1059
		ret_val = e1e_rphy(hw, MII_BMSR, &mii_status_reg);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1060
		if (ret_val)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1061
			return ret_val;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1062
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1063
		if (!(mii_status_reg & BMSR_ANEGCOMPLETE)) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1064
			e_dbg("Copper PHY and Auto Neg has not completed.\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1065
			return ret_val;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1066
		}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1067
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1068
		/* The AutoNeg process has completed, so we now need to
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1069
		 * read both the Auto Negotiation Advertisement
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1070
		 * Register (Address 4) and the Auto_Negotiation Base
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1071
		 * Page Ability Register (Address 5) to determine how
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1072
		 * flow control was negotiated.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1073
		 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1074
		ret_val = e1e_rphy(hw, MII_ADVERTISE, &mii_nway_adv_reg);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1075
		if (ret_val)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1076
			return ret_val;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1077
		ret_val = e1e_rphy(hw, MII_LPA, &mii_nway_lp_ability_reg);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1078
		if (ret_val)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1079
			return ret_val;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1080
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1081
		/* Two bits in the Auto Negotiation Advertisement Register
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1082
		 * (Address 4) and two bits in the Auto Negotiation Base
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1083
		 * Page Ability Register (Address 5) determine flow control
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1084
		 * for both the PHY and the link partner.  The following
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1085
		 * table, taken out of the IEEE 802.3ab/D6.0 dated March 25,
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1086
		 * 1999, describes these PAUSE resolution bits and how flow
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1087
		 * control is determined based upon these settings.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1088
		 * NOTE:  DC = Don't Care
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1089
		 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1090
		 *   LOCAL DEVICE  |   LINK PARTNER
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1091
		 * PAUSE | ASM_DIR | PAUSE | ASM_DIR | NIC Resolution
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1092
		 *-------|---------|-------|---------|--------------------
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1093
		 *   0   |    0    |  DC   |   DC    | e1000_fc_none
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1094
		 *   0   |    1    |   0   |   DC    | e1000_fc_none
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1095
		 *   0   |    1    |   1   |    0    | e1000_fc_none
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1096
		 *   0   |    1    |   1   |    1    | e1000_fc_tx_pause
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1097
		 *   1   |    0    |   0   |   DC    | e1000_fc_none
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1098
		 *   1   |   DC    |   1   |   DC    | e1000_fc_full
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1099
		 *   1   |    1    |   0   |    0    | e1000_fc_none
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1100
		 *   1   |    1    |   0   |    1    | e1000_fc_rx_pause
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1101
		 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1102
		 * Are both PAUSE bits set to 1?  If so, this implies
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1103
		 * Symmetric Flow Control is enabled at both ends.  The
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1104
		 * ASM_DIR bits are irrelevant per the spec.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1105
		 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1106
		 * For Symmetric Flow Control:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1107
		 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1108
		 *   LOCAL DEVICE  |   LINK PARTNER
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1109
		 * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1110
		 *-------|---------|-------|---------|--------------------
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1111
		 *   1   |   DC    |   1   |   DC    | E1000_fc_full
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1112
		 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1113
		 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1114
		if ((mii_nway_adv_reg & ADVERTISE_PAUSE_CAP) &&
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1115
		    (mii_nway_lp_ability_reg & LPA_PAUSE_CAP)) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1116
			/* Now we need to check if the user selected Rx ONLY
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1117
			 * of pause frames.  In this case, we had to advertise
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1118
			 * FULL flow control because we could not advertise Rx
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1119
			 * ONLY. Hence, we must now check to see if we need to
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1120
			 * turn OFF the TRANSMISSION of PAUSE frames.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1121
			 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1122
			if (hw->fc.requested_mode == e1000_fc_full) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1123
				hw->fc.current_mode = e1000_fc_full;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1124
				e_dbg("Flow Control = FULL.\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1125
			} else {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1126
				hw->fc.current_mode = e1000_fc_rx_pause;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1127
				e_dbg("Flow Control = Rx PAUSE frames only.\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1128
			}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1129
		}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1130
		/* For receiving PAUSE frames ONLY.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1131
		 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1132
		 *   LOCAL DEVICE  |   LINK PARTNER
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1133
		 * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1134
		 *-------|---------|-------|---------|--------------------
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1135
		 *   0   |    1    |   1   |    1    | e1000_fc_tx_pause
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1136
		 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1137
		else if (!(mii_nway_adv_reg & ADVERTISE_PAUSE_CAP) &&
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1138
			 (mii_nway_adv_reg & ADVERTISE_PAUSE_ASYM) &&
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1139
			 (mii_nway_lp_ability_reg & LPA_PAUSE_CAP) &&
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1140
			 (mii_nway_lp_ability_reg & LPA_PAUSE_ASYM)) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1141
			hw->fc.current_mode = e1000_fc_tx_pause;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1142
			e_dbg("Flow Control = Tx PAUSE frames only.\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1143
		}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1144
		/* For transmitting PAUSE frames ONLY.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1145
		 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1146
		 *   LOCAL DEVICE  |   LINK PARTNER
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1147
		 * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1148
		 *-------|---------|-------|---------|--------------------
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1149
		 *   1   |    1    |   0   |    1    | e1000_fc_rx_pause
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1150
		 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1151
		else if ((mii_nway_adv_reg & ADVERTISE_PAUSE_CAP) &&
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1152
			 (mii_nway_adv_reg & ADVERTISE_PAUSE_ASYM) &&
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1153
			 !(mii_nway_lp_ability_reg & LPA_PAUSE_CAP) &&
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1154
			 (mii_nway_lp_ability_reg & LPA_PAUSE_ASYM)) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1155
			hw->fc.current_mode = e1000_fc_rx_pause;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1156
			e_dbg("Flow Control = Rx PAUSE frames only.\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1157
		} else {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1158
			/* Per the IEEE spec, at this point flow control
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1159
			 * should be disabled.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1160
			 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1161
			hw->fc.current_mode = e1000_fc_none;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1162
			e_dbg("Flow Control = NONE.\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1163
		}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1164
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1165
		/* Now we need to do one last check...  If we auto-
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1166
		 * negotiated to HALF DUPLEX, flow control should not be
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1167
		 * enabled per IEEE 802.3 spec.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1168
		 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1169
		ret_val = mac->ops.get_link_up_info(hw, &speed, &duplex);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1170
		if (ret_val) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1171
			e_dbg("Error getting link speed and duplex\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1172
			return ret_val;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1173
		}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1174
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1175
		if (duplex == HALF_DUPLEX)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1176
			hw->fc.current_mode = e1000_fc_none;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1177
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1178
		/* Now we call a subroutine to actually force the MAC
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1179
		 * controller to use the correct flow control settings.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1180
		 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1181
		ret_val = e1000e_force_mac_fc(hw);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1182
		if (ret_val) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1183
			e_dbg("Error forcing flow control settings\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1184
			return ret_val;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1185
		}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1186
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1187
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1188
	/* Check for the case where we have SerDes media and auto-neg is
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1189
	 * enabled.  In this case, we need to check and see if Auto-Neg
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1190
	 * has completed, and if so, how the PHY and link partner has
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1191
	 * flow control configured.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1192
	 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1193
	if ((hw->phy.media_type == e1000_media_type_internal_serdes) &&
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1194
	    mac->autoneg) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1195
		/* Read the PCS_LSTS and check to see if AutoNeg
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1196
		 * has completed.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1197
		 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1198
		pcs_status_reg = er32(PCS_LSTAT);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1199
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1200
		if (!(pcs_status_reg & E1000_PCS_LSTS_AN_COMPLETE)) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1201
			e_dbg("PCS Auto Neg has not completed.\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1202
			return ret_val;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1203
		}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1204
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1205
		/* The AutoNeg process has completed, so we now need to
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1206
		 * read both the Auto Negotiation Advertisement
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1207
		 * Register (PCS_ANADV) and the Auto_Negotiation Base
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1208
		 * Page Ability Register (PCS_LPAB) to determine how
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1209
		 * flow control was negotiated.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1210
		 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1211
		pcs_adv_reg = er32(PCS_ANADV);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1212
		pcs_lp_ability_reg = er32(PCS_LPAB);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1213
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1214
		/* Two bits in the Auto Negotiation Advertisement Register
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1215
		 * (PCS_ANADV) and two bits in the Auto Negotiation Base
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1216
		 * Page Ability Register (PCS_LPAB) determine flow control
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1217
		 * for both the PHY and the link partner.  The following
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1218
		 * table, taken out of the IEEE 802.3ab/D6.0 dated March 25,
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1219
		 * 1999, describes these PAUSE resolution bits and how flow
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1220
		 * control is determined based upon these settings.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1221
		 * NOTE:  DC = Don't Care
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1222
		 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1223
		 *   LOCAL DEVICE  |   LINK PARTNER
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1224
		 * PAUSE | ASM_DIR | PAUSE | ASM_DIR | NIC Resolution
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1225
		 *-------|---------|-------|---------|--------------------
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1226
		 *   0   |    0    |  DC   |   DC    | e1000_fc_none
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1227
		 *   0   |    1    |   0   |   DC    | e1000_fc_none
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1228
		 *   0   |    1    |   1   |    0    | e1000_fc_none
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1229
		 *   0   |    1    |   1   |    1    | e1000_fc_tx_pause
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1230
		 *   1   |    0    |   0   |   DC    | e1000_fc_none
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1231
		 *   1   |   DC    |   1   |   DC    | e1000_fc_full
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1232
		 *   1   |    1    |   0   |    0    | e1000_fc_none
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1233
		 *   1   |    1    |   0   |    1    | e1000_fc_rx_pause
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1234
		 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1235
		 * Are both PAUSE bits set to 1?  If so, this implies
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1236
		 * Symmetric Flow Control is enabled at both ends.  The
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1237
		 * ASM_DIR bits are irrelevant per the spec.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1238
		 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1239
		 * For Symmetric Flow Control:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1240
		 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1241
		 *   LOCAL DEVICE  |   LINK PARTNER
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1242
		 * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1243
		 *-------|---------|-------|---------|--------------------
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1244
		 *   1   |   DC    |   1   |   DC    | e1000_fc_full
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1245
		 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1246
		 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1247
		if ((pcs_adv_reg & E1000_TXCW_PAUSE) &&
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1248
		    (pcs_lp_ability_reg & E1000_TXCW_PAUSE)) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1249
			/* Now we need to check if the user selected Rx ONLY
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1250
			 * of pause frames.  In this case, we had to advertise
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1251
			 * FULL flow control because we could not advertise Rx
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1252
			 * ONLY. Hence, we must now check to see if we need to
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1253
			 * turn OFF the TRANSMISSION of PAUSE frames.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1254
			 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1255
			if (hw->fc.requested_mode == e1000_fc_full) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1256
				hw->fc.current_mode = e1000_fc_full;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1257
				e_dbg("Flow Control = FULL.\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1258
			} else {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1259
				hw->fc.current_mode = e1000_fc_rx_pause;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1260
				e_dbg("Flow Control = Rx PAUSE frames only.\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1261
			}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1262
		}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1263
		/* For receiving PAUSE frames ONLY.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1264
		 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1265
		 *   LOCAL DEVICE  |   LINK PARTNER
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1266
		 * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1267
		 *-------|---------|-------|---------|--------------------
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1268
		 *   0   |    1    |   1   |    1    | e1000_fc_tx_pause
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1269
		 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1270
		else if (!(pcs_adv_reg & E1000_TXCW_PAUSE) &&
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1271
			 (pcs_adv_reg & E1000_TXCW_ASM_DIR) &&
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1272
			 (pcs_lp_ability_reg & E1000_TXCW_PAUSE) &&
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1273
			 (pcs_lp_ability_reg & E1000_TXCW_ASM_DIR)) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1274
			hw->fc.current_mode = e1000_fc_tx_pause;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1275
			e_dbg("Flow Control = Tx PAUSE frames only.\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1276
		}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1277
		/* For transmitting PAUSE frames ONLY.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1278
		 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1279
		 *   LOCAL DEVICE  |   LINK PARTNER
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1280
		 * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1281
		 *-------|---------|-------|---------|--------------------
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1282
		 *   1   |    1    |   0   |    1    | e1000_fc_rx_pause
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1283
		 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1284
		else if ((pcs_adv_reg & E1000_TXCW_PAUSE) &&
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1285
			 (pcs_adv_reg & E1000_TXCW_ASM_DIR) &&
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1286
			 !(pcs_lp_ability_reg & E1000_TXCW_PAUSE) &&
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1287
			 (pcs_lp_ability_reg & E1000_TXCW_ASM_DIR)) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1288
			hw->fc.current_mode = e1000_fc_rx_pause;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1289
			e_dbg("Flow Control = Rx PAUSE frames only.\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1290
		} else {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1291
			/* Per the IEEE spec, at this point flow control
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1292
			 * should be disabled.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1293
			 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1294
			hw->fc.current_mode = e1000_fc_none;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1295
			e_dbg("Flow Control = NONE.\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1296
		}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1297
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1298
		/* Now we call a subroutine to actually force the MAC
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1299
		 * controller to use the correct flow control settings.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1300
		 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1301
		pcs_ctrl_reg = er32(PCS_LCTL);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1302
		pcs_ctrl_reg |= E1000_PCS_LCTL_FORCE_FCTRL;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1303
		ew32(PCS_LCTL, pcs_ctrl_reg);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1304
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1305
		ret_val = e1000e_force_mac_fc(hw);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1306
		if (ret_val) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1307
			e_dbg("Error forcing flow control settings\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1308
			return ret_val;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1309
		}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1310
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1311
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1312
	return 0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1313
}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1314
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1315
/**
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1316
 *  e1000e_get_speed_and_duplex_copper - Retrieve current speed/duplex
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1317
 *  @hw: pointer to the HW structure
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1318
 *  @speed: stores the current speed
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1319
 *  @duplex: stores the current duplex
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1320
 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1321
 *  Read the status register for the current speed/duplex and store the current
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1322
 *  speed and duplex for copper connections.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1323
 **/
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1324
s32 e1000e_get_speed_and_duplex_copper(struct e1000_hw *hw, u16 *speed,
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1325
				       u16 *duplex)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1326
{
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1327
	u32 status;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1328
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1329
	status = er32(STATUS);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1330
	if (status & E1000_STATUS_SPEED_1000)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1331
		*speed = SPEED_1000;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1332
	else if (status & E1000_STATUS_SPEED_100)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1333
		*speed = SPEED_100;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1334
	else
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1335
		*speed = SPEED_10;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1336
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1337
	if (status & E1000_STATUS_FD)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1338
		*duplex = FULL_DUPLEX;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1339
	else
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1340
		*duplex = HALF_DUPLEX;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1341
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1342
	e_dbg("%u Mbps, %s Duplex\n",
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1343
	      *speed == SPEED_1000 ? 1000 : *speed == SPEED_100 ? 100 : 10,
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1344
	      *duplex == FULL_DUPLEX ? "Full" : "Half");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1345
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1346
	return 0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1347
}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1348
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1349
/**
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1350
 *  e1000e_get_speed_and_duplex_fiber_serdes - Retrieve current speed/duplex
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1351
 *  @hw: pointer to the HW structure
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1352
 *  @speed: stores the current speed
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1353
 *  @duplex: stores the current duplex
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1354
 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1355
 *  Sets the speed and duplex to gigabit full duplex (the only possible option)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1356
 *  for fiber/serdes links.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1357
 **/
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1358
s32 e1000e_get_speed_and_duplex_fiber_serdes(struct e1000_hw __always_unused
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1359
					     *hw, u16 *speed, u16 *duplex)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1360
{
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1361
	*speed = SPEED_1000;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1362
	*duplex = FULL_DUPLEX;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1363
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1364
	return 0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1365
}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1366
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1367
/**
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1368
 *  e1000e_get_hw_semaphore - Acquire hardware semaphore
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1369
 *  @hw: pointer to the HW structure
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1370
 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1371
 *  Acquire the HW semaphore to access the PHY or NVM
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1372
 **/
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1373
s32 e1000e_get_hw_semaphore(struct e1000_hw *hw)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1374
{
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1375
	u32 swsm;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1376
	s32 timeout = hw->nvm.word_size + 1;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1377
	s32 i = 0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1378
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1379
	/* Get the SW semaphore */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1380
	while (i < timeout) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1381
		swsm = er32(SWSM);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1382
		if (!(swsm & E1000_SWSM_SMBI))
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1383
			break;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1384
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1385
		usleep_range(50, 100);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1386
		i++;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1387
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1388
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1389
	if (i == timeout) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1390
		e_dbg("Driver can't access device - SMBI bit is set.\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1391
		return -E1000_ERR_NVM;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1392
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1393
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1394
	/* Get the FW semaphore. */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1395
	for (i = 0; i < timeout; i++) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1396
		swsm = er32(SWSM);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1397
		ew32(SWSM, swsm | E1000_SWSM_SWESMBI);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1398
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1399
		/* Semaphore acquired if bit latched */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1400
		if (er32(SWSM) & E1000_SWSM_SWESMBI)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1401
			break;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1402
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1403
		usleep_range(50, 100);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1404
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1405
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1406
	if (i == timeout) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1407
		/* Release semaphores */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1408
		e1000e_put_hw_semaphore(hw);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1409
		e_dbg("Driver can't access the NVM\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1410
		return -E1000_ERR_NVM;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1411
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1412
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1413
	return 0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1414
}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1415
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1416
/**
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1417
 *  e1000e_put_hw_semaphore - Release hardware semaphore
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1418
 *  @hw: pointer to the HW structure
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1419
 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1420
 *  Release hardware semaphore used to access the PHY or NVM
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1421
 **/
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1422
void e1000e_put_hw_semaphore(struct e1000_hw *hw)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1423
{
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1424
	u32 swsm;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1425
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1426
	swsm = er32(SWSM);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1427
	swsm &= ~(E1000_SWSM_SMBI | E1000_SWSM_SWESMBI);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1428
	ew32(SWSM, swsm);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1429
}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1430
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1431
/**
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1432
 *  e1000e_get_auto_rd_done - Check for auto read completion
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1433
 *  @hw: pointer to the HW structure
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1434
 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1435
 *  Check EEPROM for Auto Read done bit.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1436
 **/
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1437
s32 e1000e_get_auto_rd_done(struct e1000_hw *hw)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1438
{
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1439
	s32 i = 0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1440
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1441
	while (i < AUTO_READ_DONE_TIMEOUT) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1442
		if (er32(EECD) & E1000_EECD_AUTO_RD)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1443
			break;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1444
		usleep_range(1000, 2000);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1445
		i++;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1446
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1447
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1448
	if (i == AUTO_READ_DONE_TIMEOUT) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1449
		e_dbg("Auto read by HW from NVM has not completed.\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1450
		return -E1000_ERR_RESET;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1451
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1452
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1453
	return 0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1454
}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1455
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1456
/**
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1457
 *  e1000e_valid_led_default - Verify a valid default LED config
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1458
 *  @hw: pointer to the HW structure
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1459
 *  @data: pointer to the NVM (EEPROM)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1460
 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1461
 *  Read the EEPROM for the current default LED configuration.  If the
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1462
 *  LED configuration is not valid, set to a valid LED configuration.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1463
 **/
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1464
s32 e1000e_valid_led_default(struct e1000_hw *hw, u16 *data)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1465
{
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1466
	s32 ret_val;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1467
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1468
	ret_val = e1000_read_nvm(hw, NVM_ID_LED_SETTINGS, 1, data);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1469
	if (ret_val) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1470
		e_dbg("NVM Read Error\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1471
		return ret_val;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1472
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1473
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1474
	if (*data == ID_LED_RESERVED_0000 || *data == ID_LED_RESERVED_FFFF)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1475
		*data = ID_LED_DEFAULT;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1476
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1477
	return 0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1478
}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1479
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1480
/**
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1481
 *  e1000e_id_led_init_generic -
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1482
 *  @hw: pointer to the HW structure
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1483
 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1484
 **/
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1485
s32 e1000e_id_led_init_generic(struct e1000_hw *hw)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1486
{
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1487
	struct e1000_mac_info *mac = &hw->mac;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1488
	s32 ret_val;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1489
	const u32 ledctl_mask = 0x000000FF;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1490
	const u32 ledctl_on = E1000_LEDCTL_MODE_LED_ON;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1491
	const u32 ledctl_off = E1000_LEDCTL_MODE_LED_OFF;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1492
	u16 data, i, temp;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1493
	const u16 led_mask = 0x0F;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1494
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1495
	ret_val = hw->nvm.ops.valid_led_default(hw, &data);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1496
	if (ret_val)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1497
		return ret_val;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1498
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1499
	mac->ledctl_default = er32(LEDCTL);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1500
	mac->ledctl_mode1 = mac->ledctl_default;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1501
	mac->ledctl_mode2 = mac->ledctl_default;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1502
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1503
	for (i = 0; i < 4; i++) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1504
		temp = (data >> (i << 2)) & led_mask;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1505
		switch (temp) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1506
		case ID_LED_ON1_DEF2:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1507
		case ID_LED_ON1_ON2:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1508
		case ID_LED_ON1_OFF2:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1509
			mac->ledctl_mode1 &= ~(ledctl_mask << (i << 3));
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1510
			mac->ledctl_mode1 |= ledctl_on << (i << 3);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1511
			break;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1512
		case ID_LED_OFF1_DEF2:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1513
		case ID_LED_OFF1_ON2:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1514
		case ID_LED_OFF1_OFF2:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1515
			mac->ledctl_mode1 &= ~(ledctl_mask << (i << 3));
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1516
			mac->ledctl_mode1 |= ledctl_off << (i << 3);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1517
			break;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1518
		default:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1519
			/* Do nothing */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1520
			break;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1521
		}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1522
		switch (temp) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1523
		case ID_LED_DEF1_ON2:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1524
		case ID_LED_ON1_ON2:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1525
		case ID_LED_OFF1_ON2:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1526
			mac->ledctl_mode2 &= ~(ledctl_mask << (i << 3));
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1527
			mac->ledctl_mode2 |= ledctl_on << (i << 3);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1528
			break;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1529
		case ID_LED_DEF1_OFF2:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1530
		case ID_LED_ON1_OFF2:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1531
		case ID_LED_OFF1_OFF2:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1532
			mac->ledctl_mode2 &= ~(ledctl_mask << (i << 3));
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1533
			mac->ledctl_mode2 |= ledctl_off << (i << 3);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1534
			break;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1535
		default:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1536
			/* Do nothing */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1537
			break;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1538
		}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1539
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1540
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1541
	return 0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1542
}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1543
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1544
/**
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1545
 *  e1000e_setup_led_generic - Configures SW controllable LED
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1546
 *  @hw: pointer to the HW structure
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1547
 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1548
 *  This prepares the SW controllable LED for use and saves the current state
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1549
 *  of the LED so it can be later restored.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1550
 **/
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1551
s32 e1000e_setup_led_generic(struct e1000_hw *hw)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1552
{
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1553
	u32 ledctl;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1554
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1555
	if (hw->mac.ops.setup_led != e1000e_setup_led_generic)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1556
		return -E1000_ERR_CONFIG;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1557
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1558
	if (hw->phy.media_type == e1000_media_type_fiber) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1559
		ledctl = er32(LEDCTL);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1560
		hw->mac.ledctl_default = ledctl;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1561
		/* Turn off LED0 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1562
		ledctl &= ~(E1000_LEDCTL_LED0_IVRT | E1000_LEDCTL_LED0_BLINK |
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1563
			    E1000_LEDCTL_LED0_MODE_MASK);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1564
		ledctl |= (E1000_LEDCTL_MODE_LED_OFF <<
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1565
			   E1000_LEDCTL_LED0_MODE_SHIFT);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1566
		ew32(LEDCTL, ledctl);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1567
	} else if (hw->phy.media_type == e1000_media_type_copper) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1568
		ew32(LEDCTL, hw->mac.ledctl_mode1);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1569
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1570
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1571
	return 0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1572
}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1573
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1574
/**
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1575
 *  e1000e_cleanup_led_generic - Set LED config to default operation
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1576
 *  @hw: pointer to the HW structure
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1577
 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1578
 *  Remove the current LED configuration and set the LED configuration
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1579
 *  to the default value, saved from the EEPROM.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1580
 **/
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1581
s32 e1000e_cleanup_led_generic(struct e1000_hw *hw)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1582
{
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1583
	ew32(LEDCTL, hw->mac.ledctl_default);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1584
	return 0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1585
}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1586
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1587
/**
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1588
 *  e1000e_blink_led_generic - Blink LED
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1589
 *  @hw: pointer to the HW structure
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1590
 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1591
 *  Blink the LEDs which are set to be on.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1592
 **/
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1593
s32 e1000e_blink_led_generic(struct e1000_hw *hw)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1594
{
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1595
	u32 ledctl_blink = 0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1596
	u32 i;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1597
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1598
	if (hw->phy.media_type == e1000_media_type_fiber) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1599
		/* always blink LED0 for PCI-E fiber */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1600
		ledctl_blink = E1000_LEDCTL_LED0_BLINK |
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1601
		    (E1000_LEDCTL_MODE_LED_ON << E1000_LEDCTL_LED0_MODE_SHIFT);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1602
	} else {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1603
		/* Set the blink bit for each LED that's "on" (0x0E)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1604
		 * (or "off" if inverted) in ledctl_mode2.  The blink
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1605
		 * logic in hardware only works when mode is set to "on"
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1606
		 * so it must be changed accordingly when the mode is
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1607
		 * "off" and inverted.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1608
		 */
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1609
		ledctl_blink = hw->mac.ledctl_mode2;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1610
		for (i = 0; i < 32; i += 8) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1611
			u32 mode = (hw->mac.ledctl_mode2 >> i) &
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1612
			    E1000_LEDCTL_LED0_MODE_MASK;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1613
			u32 led_default = hw->mac.ledctl_default >> i;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1614
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1615
			if ((!(led_default & E1000_LEDCTL_LED0_IVRT) &&
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1616
			     (mode == E1000_LEDCTL_MODE_LED_ON)) ||
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1617
			    ((led_default & E1000_LEDCTL_LED0_IVRT) &&
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1618
			     (mode == E1000_LEDCTL_MODE_LED_OFF))) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1619
				ledctl_blink &=
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1620
				    ~(E1000_LEDCTL_LED0_MODE_MASK << i);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1621
				ledctl_blink |= (E1000_LEDCTL_LED0_BLINK |
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1622
						 E1000_LEDCTL_MODE_LED_ON) << i;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1623
			}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1624
		}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1625
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1626
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1627
	ew32(LEDCTL, ledctl_blink);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1628
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1629
	return 0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1630
}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1631
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1632
/**
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1633
 *  e1000e_led_on_generic - Turn LED on
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1634
 *  @hw: pointer to the HW structure
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1635
 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1636
 *  Turn LED on.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1637
 **/
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1638
s32 e1000e_led_on_generic(struct e1000_hw *hw)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1639
{
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1640
	u32 ctrl;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1641
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1642
	switch (hw->phy.media_type) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1643
	case e1000_media_type_fiber:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1644
		ctrl = er32(CTRL);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1645
		ctrl &= ~E1000_CTRL_SWDPIN0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1646
		ctrl |= E1000_CTRL_SWDPIO0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1647
		ew32(CTRL, ctrl);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1648
		break;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1649
	case e1000_media_type_copper:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1650
		ew32(LEDCTL, hw->mac.ledctl_mode2);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1651
		break;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1652
	default:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1653
		break;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1654
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1655
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1656
	return 0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1657
}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1658
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1659
/**
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1660
 *  e1000e_led_off_generic - Turn LED off
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1661
 *  @hw: pointer to the HW structure
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1662
 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1663
 *  Turn LED off.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1664
 **/
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1665
s32 e1000e_led_off_generic(struct e1000_hw *hw)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1666
{
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1667
	u32 ctrl;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1668
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1669
	switch (hw->phy.media_type) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1670
	case e1000_media_type_fiber:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1671
		ctrl = er32(CTRL);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1672
		ctrl |= E1000_CTRL_SWDPIN0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1673
		ctrl |= E1000_CTRL_SWDPIO0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1674
		ew32(CTRL, ctrl);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1675
		break;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1676
	case e1000_media_type_copper:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1677
		ew32(LEDCTL, hw->mac.ledctl_mode1);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1678
		break;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1679
	default:
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1680
		break;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1681
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1682
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1683
	return 0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1684
}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1685
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1686
/**
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1687
 *  e1000e_set_pcie_no_snoop - Set PCI-express capabilities
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1688
 *  @hw: pointer to the HW structure
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1689
 *  @no_snoop: bitmap of snoop events
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1690
 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1691
 *  Set the PCI-express register to snoop for events enabled in 'no_snoop'.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1692
 **/
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1693
void e1000e_set_pcie_no_snoop(struct e1000_hw *hw, u32 no_snoop)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1694
{
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1695
	u32 gcr;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1696
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1697
	if (no_snoop) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1698
		gcr = er32(GCR);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1699
		gcr &= ~(PCIE_NO_SNOOP_ALL);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1700
		gcr |= no_snoop;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1701
		ew32(GCR, gcr);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1702
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1703
}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1704
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1705
/**
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1706
 *  e1000e_disable_pcie_master - Disables PCI-express master access
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1707
 *  @hw: pointer to the HW structure
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1708
 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1709
 *  Returns 0 if successful, else returns -10
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1710
 *  (-E1000_ERR_MASTER_REQUESTS_PENDING) if master disable bit has not caused
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1711
 *  the master requests to be disabled.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1712
 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1713
 *  Disables PCI-Express master access and verifies there are no pending
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1714
 *  requests.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1715
 **/
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1716
s32 e1000e_disable_pcie_master(struct e1000_hw *hw)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1717
{
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1718
	u32 ctrl;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1719
	s32 timeout = MASTER_DISABLE_TIMEOUT;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1720
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1721
	ctrl = er32(CTRL);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1722
	ctrl |= E1000_CTRL_GIO_MASTER_DISABLE;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1723
	ew32(CTRL, ctrl);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1724
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1725
	while (timeout) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1726
		if (!(er32(STATUS) & E1000_STATUS_GIO_MASTER_ENABLE))
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1727
			break;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1728
		usleep_range(100, 200);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1729
		timeout--;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1730
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1731
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1732
	if (!timeout) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1733
		e_dbg("Master requests are pending.\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1734
		return -E1000_ERR_MASTER_REQUESTS_PENDING;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1735
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1736
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1737
	return 0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1738
}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1739
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1740
/**
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1741
 *  e1000e_reset_adaptive - Reset Adaptive Interframe Spacing
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1742
 *  @hw: pointer to the HW structure
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1743
 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1744
 *  Reset the Adaptive Interframe Spacing throttle to default values.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1745
 **/
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1746
void e1000e_reset_adaptive(struct e1000_hw *hw)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1747
{
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1748
	struct e1000_mac_info *mac = &hw->mac;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1749
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1750
	if (!mac->adaptive_ifs) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1751
		e_dbg("Not in Adaptive IFS mode!\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1752
		return;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1753
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1754
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1755
	mac->current_ifs_val = 0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1756
	mac->ifs_min_val = IFS_MIN;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1757
	mac->ifs_max_val = IFS_MAX;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1758
	mac->ifs_step_size = IFS_STEP;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1759
	mac->ifs_ratio = IFS_RATIO;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1760
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1761
	mac->in_ifs_mode = false;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1762
	ew32(AIT, 0);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1763
}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1764
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1765
/**
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1766
 *  e1000e_update_adaptive - Update Adaptive Interframe Spacing
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1767
 *  @hw: pointer to the HW structure
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1768
 *
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1769
 *  Update the Adaptive Interframe Spacing Throttle value based on the
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1770
 *  time between transmitted packets and time between collisions.
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1771
 **/
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1772
void e1000e_update_adaptive(struct e1000_hw *hw)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1773
{
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1774
	struct e1000_mac_info *mac = &hw->mac;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1775
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1776
	if (!mac->adaptive_ifs) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1777
		e_dbg("Not in Adaptive IFS mode!\n");
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1778
		return;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1779
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1780
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1781
	if ((mac->collision_delta * mac->ifs_ratio) > mac->tx_packet_delta) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1782
		if (mac->tx_packet_delta > MIN_NUM_XMITS) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1783
			mac->in_ifs_mode = true;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1784
			if (mac->current_ifs_val < mac->ifs_max_val) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1785
				if (!mac->current_ifs_val)
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1786
					mac->current_ifs_val = mac->ifs_min_val;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1787
				else
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1788
					mac->current_ifs_val +=
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1789
					    mac->ifs_step_size;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1790
				ew32(AIT, mac->current_ifs_val);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1791
			}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1792
		}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1793
	} else {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1794
		if (mac->in_ifs_mode &&
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1795
		    (mac->tx_packet_delta <= MIN_NUM_XMITS)) {
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1796
			mac->current_ifs_val = 0;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1797
			mac->in_ifs_mode = false;
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1798
			ew32(AIT, 0);
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1799
		}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1800
	}
5b89b4e38cdc Added all drivers for kernel 3.12.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1801
}