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/*******************************************************************************

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  Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.

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  This program is free software; you can redistribute it and/or modify it 

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  under the terms of the GNU General Public License as published by the Free 

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  Software Foundation; either version 2 of the License, or (at your option) 

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  any later version.

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  This program is distributed in the hope that 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., 59 

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  Temple Place - Suite 330, Boston, MA  02111-1307, USA.

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  The full GNU General Public License is included in this distribution in the

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  file called LICENSE.

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  Contact Information:

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  Linux NICS <linux.nics@intel.com>

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  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497

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*******************************************************************************/

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/* ethtool support for e1000 */

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#include "e1000.h"

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#include <asm/uaccess.h>

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extern char e1000_driver_name[];

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extern char e1000_driver_version[];

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    38

extern int e1000_up(struct e1000_adapter *adapter);

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extern void e1000_down(struct e1000_adapter *adapter);

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extern void e1000_reset(struct e1000_adapter *adapter);

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extern int e1000_set_spd_dplx(struct e1000_adapter *adapter, uint16_t spddplx);

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extern int e1000_setup_rx_resources(struct e1000_adapter *adapter);

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extern int e1000_setup_tx_resources(struct e1000_adapter *adapter);

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extern void e1000_free_rx_resources(struct e1000_adapter *adapter);

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extern void e1000_free_tx_resources(struct e1000_adapter *adapter);

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extern void e1000_update_stats(struct e1000_adapter *adapter);

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    48

struct e1000_stats {

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	char stat_string[ETH_GSTRING_LEN];

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	int sizeof_stat;

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	int stat_offset;

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};

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#define E1000_STAT(m) sizeof(((struct e1000_adapter *)0)->m), \

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		      offsetof(struct e1000_adapter, m)

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static const struct e1000_stats e1000_gstrings_stats[] = {

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	{ "rx_packets", E1000_STAT(net_stats.rx_packets) },

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	{ "tx_packets", E1000_STAT(net_stats.tx_packets) },

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	{ "rx_bytes", E1000_STAT(net_stats.rx_bytes) },

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	{ "tx_bytes", E1000_STAT(net_stats.tx_bytes) },

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	{ "rx_errors", E1000_STAT(net_stats.rx_errors) },

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	{ "tx_errors", E1000_STAT(net_stats.tx_errors) },

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	{ "rx_dropped", E1000_STAT(net_stats.rx_dropped) },

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	{ "tx_dropped", E1000_STAT(net_stats.tx_dropped) },

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	{ "multicast", E1000_STAT(net_stats.multicast) },

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	{ "collisions", E1000_STAT(net_stats.collisions) },

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	{ "rx_length_errors", E1000_STAT(net_stats.rx_length_errors) },

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	{ "rx_over_errors", E1000_STAT(net_stats.rx_over_errors) },

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	{ "rx_crc_errors", E1000_STAT(net_stats.rx_crc_errors) },

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	{ "rx_frame_errors", E1000_STAT(net_stats.rx_frame_errors) },

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	{ "rx_fifo_errors", E1000_STAT(net_stats.rx_fifo_errors) },

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	{ "rx_no_buffer_count", E1000_STAT(stats.rnbc) },

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	{ "rx_missed_errors", E1000_STAT(net_stats.rx_missed_errors) },

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	{ "tx_aborted_errors", E1000_STAT(net_stats.tx_aborted_errors) },

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	{ "tx_carrier_errors", E1000_STAT(net_stats.tx_carrier_errors) },

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	{ "tx_fifo_errors", E1000_STAT(net_stats.tx_fifo_errors) },

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	{ "tx_heartbeat_errors", E1000_STAT(net_stats.tx_heartbeat_errors) },

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	{ "tx_window_errors", E1000_STAT(net_stats.tx_window_errors) },

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	{ "tx_abort_late_coll", E1000_STAT(stats.latecol) },

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	{ "tx_deferred_ok", E1000_STAT(stats.dc) },

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	{ "tx_single_coll_ok", E1000_STAT(stats.scc) },

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	{ "tx_multi_coll_ok", E1000_STAT(stats.mcc) },

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	{ "rx_long_length_errors", E1000_STAT(stats.roc) },

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	{ "rx_short_length_errors", E1000_STAT(stats.ruc) },

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	{ "rx_align_errors", E1000_STAT(stats.algnerrc) },

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	{ "tx_tcp_seg_good", E1000_STAT(stats.tsctc) },

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	{ "tx_tcp_seg_failed", E1000_STAT(stats.tsctfc) },

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	{ "rx_flow_control_xon", E1000_STAT(stats.xonrxc) },

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	{ "rx_flow_control_xoff", E1000_STAT(stats.xoffrxc) },

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	{ "tx_flow_control_xon", E1000_STAT(stats.xontxc) },

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	{ "tx_flow_control_xoff", E1000_STAT(stats.xofftxc) },

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	{ "rx_long_byte_count", E1000_STAT(stats.gorcl) },

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	{ "rx_csum_offload_good", E1000_STAT(hw_csum_good) },

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	{ "rx_csum_offload_errors", E1000_STAT(hw_csum_err) }

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};

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#define E1000_STATS_LEN	\

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	sizeof(e1000_gstrings_stats) / sizeof(struct e1000_stats)

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static const char e1000_gstrings_test[][ETH_GSTRING_LEN] = {

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	"Register test  (offline)", "Eeprom test    (offline)",

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	"Interrupt test (offline)", "Loopback test  (offline)",

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	"Link test   (on/offline)"

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};

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#define E1000_TEST_LEN sizeof(e1000_gstrings_test) / ETH_GSTRING_LEN

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   105

static int

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e1000_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)

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{

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	struct e1000_adapter *adapter = netdev_priv(netdev);

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	struct e1000_hw *hw = &adapter->hw;

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	if(hw->media_type == e1000_media_type_copper) {

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		ecmd->supported = (SUPPORTED_10baseT_Half |

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		                   SUPPORTED_10baseT_Full |

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		                   SUPPORTED_100baseT_Half |

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		                   SUPPORTED_100baseT_Full |

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		                   SUPPORTED_1000baseT_Full|

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		                   SUPPORTED_Autoneg |

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		                   SUPPORTED_TP);

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		ecmd->advertising = ADVERTISED_TP;

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		if(hw->autoneg == 1) {

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			ecmd->advertising |= ADVERTISED_Autoneg;

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			/* the e1000 autoneg seems to match ethtool nicely */

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			ecmd->advertising |= hw->autoneg_advertised;

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		}

   130

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		ecmd->port = PORT_TP;

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		ecmd->phy_address = hw->phy_addr;

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		if(hw->mac_type == e1000_82543)

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			ecmd->transceiver = XCVR_EXTERNAL;

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		else

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			ecmd->transceiver = XCVR_INTERNAL;

   138

   139

	} else {

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		ecmd->supported   = (SUPPORTED_1000baseT_Full |

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				     SUPPORTED_FIBRE |

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				     SUPPORTED_Autoneg);

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		ecmd->advertising = (ADVERTISED_1000baseT_Full |

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				     ADVERTISED_FIBRE |

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				     ADVERTISED_Autoneg);

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		ecmd->port = PORT_FIBRE;

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		if(hw->mac_type >= e1000_82545)

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			ecmd->transceiver = XCVR_INTERNAL;

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		else

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			ecmd->transceiver = XCVR_EXTERNAL;

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	}

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	if(netif_carrier_ok(adapter->netdev)) {

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		e1000_get_speed_and_duplex(hw, &adapter->link_speed,

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		                                   &adapter->link_duplex);

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		ecmd->speed = adapter->link_speed;

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   162

		/* unfortunatly FULL_DUPLEX != DUPLEX_FULL

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		 *          and HALF_DUPLEX != DUPLEX_HALF */

   164

   165

		if(adapter->link_duplex == FULL_DUPLEX)

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			ecmd->duplex = DUPLEX_FULL;

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		else

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			ecmd->duplex = DUPLEX_HALF;

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	} else {

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		ecmd->speed = -1;

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		ecmd->duplex = -1;

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	}

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	ecmd->autoneg = ((hw->media_type == e1000_media_type_fiber) ||

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			 hw->autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE;

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	return 0;

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}

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static int

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e1000_set_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)

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{

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	struct e1000_adapter *adapter = netdev_priv(netdev);

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	struct e1000_hw *hw = &adapter->hw;

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	if(ecmd->autoneg == AUTONEG_ENABLE) {

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		hw->autoneg = 1;

   187

		if(hw->media_type == e1000_media_type_fiber)

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			hw->autoneg_advertised = ADVERTISED_1000baseT_Full |

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				     ADVERTISED_FIBRE |

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				     ADVERTISED_Autoneg;

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		else 

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			hw->autoneg_advertised = ADVERTISED_10baseT_Half |

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						  ADVERTISED_10baseT_Full |

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						  ADVERTISED_100baseT_Half |

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						  ADVERTISED_100baseT_Full |

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						  ADVERTISED_1000baseT_Full|

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						  ADVERTISED_Autoneg |

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						  ADVERTISED_TP;

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		ecmd->advertising = hw->autoneg_advertised;

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	} else

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		if(e1000_set_spd_dplx(adapter, ecmd->speed + ecmd->duplex))

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			return -EINVAL;

   203

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	/* reset the link */

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	if(netif_running(adapter->netdev)) {

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		e1000_down(adapter);

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		e1000_reset(adapter);

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		e1000_up(adapter);

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	} else

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		e1000_reset(adapter);

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	return 0;

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}

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static void

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e1000_get_pauseparam(struct net_device *netdev,

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                     struct ethtool_pauseparam *pause)

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{

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	struct e1000_adapter *adapter = netdev_priv(netdev);

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	struct e1000_hw *hw = &adapter->hw;

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	pause->autoneg = 

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		(adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);

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	if(hw->fc == e1000_fc_rx_pause)

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		pause->rx_pause = 1;

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	else if(hw->fc == e1000_fc_tx_pause)

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		pause->tx_pause = 1;

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	else if(hw->fc == e1000_fc_full) {

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		pause->rx_pause = 1;

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		pause->tx_pause = 1;

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	}

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}

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static int

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e1000_set_pauseparam(struct net_device *netdev,

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                     struct ethtool_pauseparam *pause)

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{

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	struct e1000_adapter *adapter = netdev_priv(netdev);

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	struct e1000_hw *hw = &adapter->hw;

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	adapter->fc_autoneg = pause->autoneg;

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   245

	if(pause->rx_pause && pause->tx_pause)

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		hw->fc = e1000_fc_full;

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	else if(pause->rx_pause && !pause->tx_pause)

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		hw->fc = e1000_fc_rx_pause;

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	else if(!pause->rx_pause && pause->tx_pause)

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		hw->fc = e1000_fc_tx_pause;

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	else if(!pause->rx_pause && !pause->tx_pause)

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		hw->fc = e1000_fc_none;

   253

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	hw->original_fc = hw->fc;

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   256

	if(adapter->fc_autoneg == AUTONEG_ENABLE) {

   257

		if(netif_running(adapter->netdev)) {

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			e1000_down(adapter);

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			e1000_up(adapter);

   260

		} else

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			e1000_reset(adapter);

   262

	}

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	else

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		return ((hw->media_type == e1000_media_type_fiber) ?

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			e1000_setup_link(hw) : e1000_force_mac_fc(hw));

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   267

	return 0;

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}

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static uint32_t

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e1000_get_rx_csum(struct net_device *netdev)

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{

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	struct e1000_adapter *adapter = netdev_priv(netdev);

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	return adapter->rx_csum;

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}

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static int

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e1000_set_rx_csum(struct net_device *netdev, uint32_t data)

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{

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	struct e1000_adapter *adapter = netdev_priv(netdev);

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	adapter->rx_csum = data;

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   283

	if(netif_running(netdev)) {

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		e1000_down(adapter);

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		e1000_up(adapter);

   286

	} else

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		e1000_reset(adapter);

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	return 0;

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}

   290

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static uint32_t

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e1000_get_tx_csum(struct net_device *netdev)

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{

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	return (netdev->features & NETIF_F_HW_CSUM) != 0;

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}

   296

   297

static int

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e1000_set_tx_csum(struct net_device *netdev, uint32_t data)

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{

   300

	struct e1000_adapter *adapter = netdev_priv(netdev);

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   302

	if(adapter->hw.mac_type < e1000_82543) {

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		if (!data)

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			return -EINVAL;

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		return 0;

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	}

   307

   308

	if (data)

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		netdev->features |= NETIF_F_HW_CSUM;

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	else

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		netdev->features &= ~NETIF_F_HW_CSUM;

   312

   313

	return 0;

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}

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#ifdef NETIF_F_TSO

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static int

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e1000_set_tso(struct net_device *netdev, uint32_t data)

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{

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	struct e1000_adapter *adapter = netdev_priv(netdev);

   321

	if((adapter->hw.mac_type < e1000_82544) ||

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	    (adapter->hw.mac_type == e1000_82547)) 

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		return data ? -EINVAL : 0;

   324

   325

	if (data)

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		netdev->features |= NETIF_F_TSO;

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	else

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		netdev->features &= ~NETIF_F_TSO;

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	return 0;

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} 

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#endif /* NETIF_F_TSO */

   332

   333

static uint32_t

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e1000_get_msglevel(struct net_device *netdev)

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{

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	struct e1000_adapter *adapter = netdev_priv(netdev);

   337

	return adapter->msg_enable;

   338

}

   339

   340

static void

   341

e1000_set_msglevel(struct net_device *netdev, uint32_t data)

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{

   343

	struct e1000_adapter *adapter = netdev_priv(netdev);

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	adapter->msg_enable = data;

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}

   346

   347

static int 

   348

e1000_get_regs_len(struct net_device *netdev)

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{

   350

#define E1000_REGS_LEN 32

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	return E1000_REGS_LEN * sizeof(uint32_t);

   352

}

   353

   354

static void

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e1000_get_regs(struct net_device *netdev,

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	       struct ethtool_regs *regs, void *p)

   357

{

   358

	struct e1000_adapter *adapter = netdev_priv(netdev);

   359

	struct e1000_hw *hw = &adapter->hw;

   360

	uint32_t *regs_buff = p;

   361

	uint16_t phy_data;

   362

   363

	memset(p, 0, E1000_REGS_LEN * sizeof(uint32_t));

   364

   365

	regs->version = (1 << 24) | (hw->revision_id << 16) | hw->device_id;

   366

   367

	regs_buff[0]  = E1000_READ_REG(hw, CTRL);

   368

	regs_buff[1]  = E1000_READ_REG(hw, STATUS);

   369

   370

	regs_buff[2]  = E1000_READ_REG(hw, RCTL);

   371

	regs_buff[3]  = E1000_READ_REG(hw, RDLEN);

   372

	regs_buff[4]  = E1000_READ_REG(hw, RDH);

   373

	regs_buff[5]  = E1000_READ_REG(hw, RDT);

   374

	regs_buff[6]  = E1000_READ_REG(hw, RDTR);

   375

   376

	regs_buff[7]  = E1000_READ_REG(hw, TCTL);

   377

	regs_buff[8]  = E1000_READ_REG(hw, TDLEN);

   378

	regs_buff[9]  = E1000_READ_REG(hw, TDH);

   379

	regs_buff[10] = E1000_READ_REG(hw, TDT);

   380

	regs_buff[11] = E1000_READ_REG(hw, TIDV);

   381

   382

	regs_buff[12] = adapter->hw.phy_type;  /* PHY type (IGP=1, M88=0) */

   383

	if(hw->phy_type == e1000_phy_igp) {

   384

		e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,

   385

				    IGP01E1000_PHY_AGC_A);

   386

		e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_A &

   387

				   IGP01E1000_PHY_PAGE_SELECT, &phy_data);

   388

		regs_buff[13] = (uint32_t)phy_data; /* cable length */

   389

		e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,

   390

				    IGP01E1000_PHY_AGC_B);

   391

		e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_B &

   392

				   IGP01E1000_PHY_PAGE_SELECT, &phy_data);

   393

		regs_buff[14] = (uint32_t)phy_data; /* cable length */

   394

		e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,

   395

				    IGP01E1000_PHY_AGC_C);

   396

		e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_C &

   397

				   IGP01E1000_PHY_PAGE_SELECT, &phy_data);

   398

		regs_buff[15] = (uint32_t)phy_data; /* cable length */

   399

		e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,

   400

				    IGP01E1000_PHY_AGC_D);

   401

		e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_D &

   402

				   IGP01E1000_PHY_PAGE_SELECT, &phy_data);

   403

		regs_buff[16] = (uint32_t)phy_data; /* cable length */

   404

		regs_buff[17] = 0; /* extended 10bt distance (not needed) */

   405

		e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 0x0);

   406

		e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS &

   407

				   IGP01E1000_PHY_PAGE_SELECT, &phy_data);

   408

		regs_buff[18] = (uint32_t)phy_data; /* cable polarity */

   409

		e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,

   410

				    IGP01E1000_PHY_PCS_INIT_REG);

   411

		e1000_read_phy_reg(hw, IGP01E1000_PHY_PCS_INIT_REG &

   412

				   IGP01E1000_PHY_PAGE_SELECT, &phy_data);

   413

		regs_buff[19] = (uint32_t)phy_data; /* cable polarity */

   414

		regs_buff[20] = 0; /* polarity correction enabled (always) */

   415

		regs_buff[22] = 0; /* phy receive errors (unavailable) */

   416

		regs_buff[23] = regs_buff[18]; /* mdix mode */

   417

		e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 0x0);

   418

	} else {

   419

        	e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data);

   420

		regs_buff[13] = (uint32_t)phy_data; /* cable length */

   421

		regs_buff[14] = 0;  /* Dummy (to align w/ IGP phy reg dump) */

   422

		regs_buff[15] = 0;  /* Dummy (to align w/ IGP phy reg dump) */

   423

		regs_buff[16] = 0;  /* Dummy (to align w/ IGP phy reg dump) */

   424

        	e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);

   425

		regs_buff[17] = (uint32_t)phy_data; /* extended 10bt distance */

   426

		regs_buff[18] = regs_buff[13]; /* cable polarity */

   427

		regs_buff[19] = 0;  /* Dummy (to align w/ IGP phy reg dump) */

   428

		regs_buff[20] = regs_buff[17]; /* polarity correction */

   429

		/* phy receive errors */

   430

		regs_buff[22] = adapter->phy_stats.receive_errors;

   431

		regs_buff[23] = regs_buff[13]; /* mdix mode */

   432

	}

   433

	regs_buff[21] = adapter->phy_stats.idle_errors;  /* phy idle errors */

   434

	e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_data);

   435

	regs_buff[24] = (uint32_t)phy_data;  /* phy local receiver status */

   436

	regs_buff[25] = regs_buff[24];  /* phy remote receiver status */

   437

	if(hw->mac_type >= e1000_82540 &&

   438

	   hw->media_type == e1000_media_type_copper) {

   439

		regs_buff[26] = E1000_READ_REG(hw, MANC);

   440

	}

   441

}

   442

   443

static int

   444

e1000_get_eeprom_len(struct net_device *netdev)

   445

{

   446

	struct e1000_adapter *adapter = netdev_priv(netdev);

   447

	return adapter->hw.eeprom.word_size * 2;

   448

}

   449

   450

static int

   451

e1000_get_eeprom(struct net_device *netdev,

   452

                      struct ethtool_eeprom *eeprom, uint8_t *bytes)

   453

{

   454

	struct e1000_adapter *adapter = netdev_priv(netdev);

   455

	struct e1000_hw *hw = &adapter->hw;

   456

	uint16_t *eeprom_buff;

   457

	int first_word, last_word;

   458

	int ret_val = 0;

   459

	uint16_t i;

   460

   461

	if(eeprom->len == 0)

   462

		return -EINVAL;

   463

   464

	eeprom->magic = hw->vendor_id | (hw->device_id << 16);

   465

   466

	first_word = eeprom->offset >> 1;

   467

	last_word = (eeprom->offset + eeprom->len - 1) >> 1;

   468

   469

	eeprom_buff = kmalloc(sizeof(uint16_t) *

   470

			(last_word - first_word + 1), GFP_KERNEL);

   471

	if(!eeprom_buff)

   472

		return -ENOMEM;

   473

   474

	if(hw->eeprom.type == e1000_eeprom_spi)

   475

		ret_val = e1000_read_eeprom(hw, first_word,

   476

					    last_word - first_word + 1,

   477

					    eeprom_buff);

   478

	else {

   479

		for (i = 0; i < last_word - first_word + 1; i++)

   480

			if((ret_val = e1000_read_eeprom(hw, first_word + i, 1,

   481

							&eeprom_buff[i])))

   482

				break;

   483

	}

   484

   485

	/* Device's eeprom is always little-endian, word addressable */

   486

	for (i = 0; i < last_word - first_word + 1; i++)

   487

		le16_to_cpus(&eeprom_buff[i]);

   488

   489

	memcpy(bytes, (uint8_t *)eeprom_buff + (eeprom->offset & 1),

   490

			eeprom->len);

   491

	kfree(eeprom_buff);

   492

   493

	return ret_val;

   494

}

   495

   496

static int

   497

e1000_set_eeprom(struct net_device *netdev,

   498

                      struct ethtool_eeprom *eeprom, uint8_t *bytes)

   499

{

   500

	struct e1000_adapter *adapter = netdev_priv(netdev);

   501

	struct e1000_hw *hw = &adapter->hw;

   502

	uint16_t *eeprom_buff;

   503

	void *ptr;

   504

	int max_len, first_word, last_word, ret_val = 0;

   505

	uint16_t i;

   506

   507

	if(eeprom->len == 0)

   508

		return -EOPNOTSUPP;

   509

   510

	if(eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))

   511

		return -EFAULT;

   512

   513

	max_len = hw->eeprom.word_size * 2;

   514

   515

	first_word = eeprom->offset >> 1;

   516

	last_word = (eeprom->offset + eeprom->len - 1) >> 1;

   517

	eeprom_buff = kmalloc(max_len, GFP_KERNEL);

   518

	if(!eeprom_buff)

   519

		return -ENOMEM;

   520

   521

	ptr = (void *)eeprom_buff;

   522

   523

	if(eeprom->offset & 1) {

   524

		/* need read/modify/write of first changed EEPROM word */

   525

		/* only the second byte of the word is being modified */

   526

		ret_val = e1000_read_eeprom(hw, first_word, 1,

   527

					    &eeprom_buff[0]);

   528

		ptr++;

   529

	}

   530