drivers/net/ethernet/atheros/alx/ethtool.c - nest-hello/linux-3.10 - Git at Google

 /*
  * Copyright (c) 2013 Johannes Berg <johannes@sipsolutions.net>
  *
  *  This file is free software: you may copy, redistribute and/or modify it
  *  under the terms of the GNU General Public License as published by the
  *  Free Software Foundation, either version 2 of the License, or (at your
  *  option) any later version.
  *
  *  This file is distributed in the hope that it will be useful, but
  *  WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  *  General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  * This file incorporates work covered by the following copyright and
  * permission notice:
  *
  * Copyright (c) 2012 Qualcomm Atheros, Inc.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
  * copyright notice and this permission notice appear in all copies.
  *
  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */

 #include <linux/pci.h>
 #include <linux/ip.h>
 #include <linux/tcp.h>
 #include <linux/netdevice.h>
 #include <linux/etherdevice.h>
 #include <linux/ethtool.h>
 #include <linux/mdio.h>
 #include <linux/interrupt.h>
 #include <asm/byteorder.h>

 #include "alx.h"
 #include "reg.h"
 #include "hw.h"


 static int alx_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 {
 	struct alx_priv *alx = netdev_priv(netdev);
 	struct alx_hw *hw = &alx->hw;

 	ecmd->supported = SUPPORTED_10baseT_Half |
 			  SUPPORTED_10baseT_Full |
 			  SUPPORTED_100baseT_Half |
 			  SUPPORTED_100baseT_Full |
 			  SUPPORTED_Autoneg |
 			  SUPPORTED_TP |
 			  SUPPORTED_Pause;
 	if (alx_hw_giga(hw))
 		ecmd->supported |= SUPPORTED_1000baseT_Full;

 	ecmd->advertising = ADVERTISED_TP;
 	if (hw->adv_cfg & ADVERTISED_Autoneg)
 		ecmd->advertising |= hw->adv_cfg;

 	ecmd->port = PORT_TP;
 	ecmd->phy_address = 0;
 	if (hw->adv_cfg & ADVERTISED_Autoneg)
 		ecmd->autoneg = AUTONEG_ENABLE;
 	else
 		ecmd->autoneg = AUTONEG_DISABLE;
 	ecmd->transceiver = XCVR_INTERNAL;

 	if (hw->flowctrl & ALX_FC_ANEG && hw->adv_cfg & ADVERTISED_Autoneg) {
 		if (hw->flowctrl & ALX_FC_RX) {
 			ecmd->advertising |= ADVERTISED_Pause;

 			if (!(hw->flowctrl & ALX_FC_TX))
 				ecmd->advertising |= ADVERTISED_Asym_Pause;
 		} else if (hw->flowctrl & ALX_FC_TX) {
 			ecmd->advertising |= ADVERTISED_Asym_Pause;
 		}
 	}

 	if (hw->link_speed != SPEED_UNKNOWN) {
 		ethtool_cmd_speed_set(ecmd,
 				      hw->link_speed - hw->link_speed % 10);
 		ecmd->duplex = hw->link_speed % 10;
 	} else {
 		ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN);
 		ecmd->duplex = DUPLEX_UNKNOWN;
 	}

 	return 0;
 }

 static int alx_set_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 {
 	struct alx_priv *alx = netdev_priv(netdev);
 	struct alx_hw *hw = &alx->hw;
 	u32 adv_cfg;

 	ASSERT_RTNL();

 	if (ecmd->autoneg == AUTONEG_ENABLE) {
 		if (ecmd->advertising & ADVERTISED_1000baseT_Half)
 			return -EINVAL;
 		adv_cfg = ecmd->advertising | ADVERTISED_Autoneg;
 	} else {
 		int speed = ethtool_cmd_speed(ecmd);

 		switch (speed + ecmd->duplex) {
 		case SPEED_10 + DUPLEX_HALF:
 			adv_cfg = ADVERTISED_10baseT_Half;
 			break;
 		case SPEED_10 + DUPLEX_FULL:
 			adv_cfg = ADVERTISED_10baseT_Full;
 			break;
 		case SPEED_100 + DUPLEX_HALF:
 			adv_cfg = ADVERTISED_100baseT_Half;
 			break;
 		case SPEED_100 + DUPLEX_FULL:
 			adv_cfg = ADVERTISED_100baseT_Full;
 			break;
 		default:
 			return -EINVAL;
 		}
 	}

 	hw->adv_cfg = adv_cfg;
 	return alx_setup_speed_duplex(hw, adv_cfg, hw->flowctrl);
 }

 static void alx_get_pauseparam(struct net_device *netdev,
 			       struct ethtool_pauseparam *pause)
 {
 	struct alx_priv *alx = netdev_priv(netdev);
 	struct alx_hw *hw = &alx->hw;

 	if (hw->flowctrl & ALX_FC_ANEG &&
 	    hw->adv_cfg & ADVERTISED_Autoneg)
 		pause->autoneg = AUTONEG_ENABLE;
 	else
 		pause->autoneg = AUTONEG_DISABLE;

 	if (hw->flowctrl & ALX_FC_TX)
 		pause->tx_pause = 1;
 	else
 		pause->tx_pause = 0;

 	if (hw->flowctrl & ALX_FC_RX)
 		pause->rx_pause = 1;
 	else
 		pause->rx_pause = 0;
 }


 static int alx_set_pauseparam(struct net_device *netdev,
 			      struct ethtool_pauseparam *pause)
 {
 	struct alx_priv *alx = netdev_priv(netdev);
 	struct alx_hw *hw = &alx->hw;
 	int err = 0;
 	bool reconfig_phy = false;
 	u8 fc = 0;

 	if (pause->tx_pause)
 		fc |= ALX_FC_TX;
 	if (pause->rx_pause)
 		fc |= ALX_FC_RX;
 	if (pause->autoneg)
 		fc |= ALX_FC_ANEG;

 	ASSERT_RTNL();

 	/* restart auto-neg for auto-mode */
 	if (hw->adv_cfg & ADVERTISED_Autoneg) {
 		if (!((fc ^ hw->flowctrl) & ALX_FC_ANEG))
 			reconfig_phy = true;
 		if (fc & hw->flowctrl & ALX_FC_ANEG &&
 		    (fc ^ hw->flowctrl) & (ALX_FC_RX | ALX_FC_TX))
 			reconfig_phy = true;
 	}

 	if (reconfig_phy) {
 		err = alx_setup_speed_duplex(hw, hw->adv_cfg, fc);
 		return err;
 	}

 	/* flow control on mac */
 	if ((fc ^ hw->flowctrl) & (ALX_FC_RX | ALX_FC_TX))
 		alx_cfg_mac_flowcontrol(hw, fc);

 	hw->flowctrl = fc;

 	return 0;
 }

 static u32 alx_get_msglevel(struct net_device *netdev)
 {
 	struct alx_priv *alx = netdev_priv(netdev);

 	return alx->msg_enable;
 }

 static void alx_set_msglevel(struct net_device *netdev, u32 data)
 {
 	struct alx_priv *alx = netdev_priv(netdev);

 	alx->msg_enable = data;
 }

 static void alx_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 {
 	struct alx_priv *alx = netdev_priv(netdev);
 	struct alx_hw *hw = &alx->hw;

 	wol->supported = WAKE_MAGIC | WAKE_PHY;
 	wol->wolopts = 0;

 	if (hw->sleep_ctrl & ALX_SLEEP_WOL_MAGIC)
 		wol->wolopts |= WAKE_MAGIC;
 	if (hw->sleep_ctrl & ALX_SLEEP_WOL_PHY)
 		wol->wolopts |= WAKE_PHY;
 }

 static int alx_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 {
 	struct alx_priv *alx = netdev_priv(netdev);
 	struct alx_hw *hw = &alx->hw;

 	if (wol->wolopts & (WAKE_ARP | WAKE_MAGICSECURE |
 			    WAKE_UCAST | WAKE_BCAST | WAKE_MCAST))
 		return -EOPNOTSUPP;

 	hw->sleep_ctrl = 0;

 	if (wol->wolopts & WAKE_MAGIC)
 		hw->sleep_ctrl |= ALX_SLEEP_WOL_MAGIC;
 	if (wol->wolopts & WAKE_PHY)
 		hw->sleep_ctrl |= ALX_SLEEP_WOL_PHY;

 	device_set_wakeup_enable(&alx->hw.pdev->dev, hw->sleep_ctrl);

 	return 0;
 }

 static void alx_get_drvinfo(struct net_device *netdev,
 			    struct ethtool_drvinfo *drvinfo)
 {
 	struct alx_priv *alx = netdev_priv(netdev);

 	strlcpy(drvinfo->driver, alx_drv_name, sizeof(drvinfo->driver));
 	strlcpy(drvinfo->bus_info, pci_name(alx->hw.pdev),
 		sizeof(drvinfo->bus_info));
 }

 const struct ethtool_ops alx_ethtool_ops = {
 	.get_settings	= alx_get_settings,
 	.set_settings	= alx_set_settings,
 	.get_pauseparam	= alx_get_pauseparam,
 	.set_pauseparam	= alx_set_pauseparam,
 	.get_drvinfo	= alx_get_drvinfo,
 	.get_msglevel	= alx_get_msglevel,
 	.set_msglevel	= alx_set_msglevel,
 	.get_wol	= alx_get_wol,
 	.set_wol	= alx_set_wol,
 	.get_link	= ethtool_op_get_link,
 };
	/*
	* Copyright (c) 2013 Johannes Berg <johannes@sipsolutions.net>
	*
	* This file is free software: you may copy, redistribute and/or modify it
	* under the terms of the GNU General Public License as published by the
	* Free Software Foundation, either version 2 of the License, or (at your
	* option) any later version.
	*
	* This file is distributed in the hope that it will be useful, but
	* WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	* General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program. If not, see <http://www.gnu.org/licenses/>.
	*
	* This file incorporates work covered by the following copyright and
	* permission notice:
	*
	* Copyright (c) 2012 Qualcomm Atheros, Inc.
	*
	* Permission to use, copy, modify, and/or distribute this software for any
	* purpose with or without fee is hereby granted, provided that the above
	* copyright notice and this permission notice appear in all copies.
	*
	* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
	* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
	* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
	* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
	* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
	* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
	* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
	*/

	#include <linux/pci.h>
	#include <linux/ip.h>
	#include <linux/tcp.h>
	#include <linux/netdevice.h>
	#include <linux/etherdevice.h>
	#include <linux/ethtool.h>
	#include <linux/mdio.h>
	#include <linux/interrupt.h>
	#include <asm/byteorder.h>

	#include "alx.h"
	#include "reg.h"
	#include "hw.h"


	static int alx_get_settings(struct net_device netdev, struct ethtool_cmd ecmd)
	{
	struct alx_priv *alx = netdev_priv(netdev);
	struct alx_hw *hw = &alx->hw;

	ecmd->supported = SUPPORTED_10baseT_Half \|
	SUPPORTED_10baseT_Full \|
	SUPPORTED_100baseT_Half \|
	SUPPORTED_100baseT_Full \|
	SUPPORTED_Autoneg \|
	SUPPORTED_TP \|
	SUPPORTED_Pause;
	if (alx_hw_giga(hw))
	ecmd->supported \|= SUPPORTED_1000baseT_Full;

	ecmd->advertising = ADVERTISED_TP;
	if (hw->adv_cfg & ADVERTISED_Autoneg)
	ecmd->advertising \|= hw->adv_cfg;

	ecmd->port = PORT_TP;
	ecmd->phy_address = 0;
	if (hw->adv_cfg & ADVERTISED_Autoneg)
	ecmd->autoneg = AUTONEG_ENABLE;
	else
	ecmd->autoneg = AUTONEG_DISABLE;
	ecmd->transceiver = XCVR_INTERNAL;

	if (hw->flowctrl & ALX_FC_ANEG && hw->adv_cfg & ADVERTISED_Autoneg) {
	if (hw->flowctrl & ALX_FC_RX) {
	ecmd->advertising \|= ADVERTISED_Pause;

	if (!(hw->flowctrl & ALX_FC_TX))
	ecmd->advertising \|= ADVERTISED_Asym_Pause;
	} else if (hw->flowctrl & ALX_FC_TX) {
	ecmd->advertising \|= ADVERTISED_Asym_Pause;
	}
	}

	if (hw->link_speed != SPEED_UNKNOWN) {
	ethtool_cmd_speed_set(ecmd,
	hw->link_speed - hw->link_speed % 10);
	ecmd->duplex = hw->link_speed % 10;
	} else {
	ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN);
	ecmd->duplex = DUPLEX_UNKNOWN;
	}

	return 0;
	}

	static int alx_set_settings(struct net_device netdev, struct ethtool_cmd ecmd)
	{
	struct alx_priv *alx = netdev_priv(netdev);
	struct alx_hw *hw = &alx->hw;
	u32 adv_cfg;

	ASSERT_RTNL();

	if (ecmd->autoneg == AUTONEG_ENABLE) {
	if (ecmd->advertising & ADVERTISED_1000baseT_Half)
	return -EINVAL;
	adv_cfg = ecmd->advertising \| ADVERTISED_Autoneg;
	} else {
	int speed = ethtool_cmd_speed(ecmd);

	switch (speed + ecmd->duplex) {
	case SPEED_10 + DUPLEX_HALF:
	adv_cfg = ADVERTISED_10baseT_Half;
	break;
	case SPEED_10 + DUPLEX_FULL:
	adv_cfg = ADVERTISED_10baseT_Full;
	break;
	case SPEED_100 + DUPLEX_HALF:
	adv_cfg = ADVERTISED_100baseT_Half;
	break;
	case SPEED_100 + DUPLEX_FULL:
	adv_cfg = ADVERTISED_100baseT_Full;
	break;
	default:
	return -EINVAL;
	}
	}

	hw->adv_cfg = adv_cfg;
	return alx_setup_speed_duplex(hw, adv_cfg, hw->flowctrl);
	}

	static void alx_get_pauseparam(struct net_device *netdev,
	struct ethtool_pauseparam *pause)
	{
	struct alx_priv *alx = netdev_priv(netdev);
	struct alx_hw *hw = &alx->hw;

	if (hw->flowctrl & ALX_FC_ANEG &&
	hw->adv_cfg & ADVERTISED_Autoneg)
	pause->autoneg = AUTONEG_ENABLE;
	else
	pause->autoneg = AUTONEG_DISABLE;

	if (hw->flowctrl & ALX_FC_TX)
	pause->tx_pause = 1;
	else
	pause->tx_pause = 0;

	if (hw->flowctrl & ALX_FC_RX)
	pause->rx_pause = 1;
	else
	pause->rx_pause = 0;
	}


	static int alx_set_pauseparam(struct net_device *netdev,
	struct ethtool_pauseparam *pause)
	{
	struct alx_priv *alx = netdev_priv(netdev);
	struct alx_hw *hw = &alx->hw;
	int err = 0;
	bool reconfig_phy = false;
	u8 fc = 0;

	if (pause->tx_pause)
	fc \|= ALX_FC_TX;
	if (pause->rx_pause)
	fc \|= ALX_FC_RX;
	if (pause->autoneg)
	fc \|= ALX_FC_ANEG;

	ASSERT_RTNL();

	/* restart auto-neg for auto-mode */
	if (hw->adv_cfg & ADVERTISED_Autoneg) {
	if (!((fc ^ hw->flowctrl) & ALX_FC_ANEG))
	reconfig_phy = true;
	if (fc & hw->flowctrl & ALX_FC_ANEG &&
	(fc ^ hw->flowctrl) & (ALX_FC_RX \| ALX_FC_TX))
	reconfig_phy = true;
	}

	if (reconfig_phy) {
	err = alx_setup_speed_duplex(hw, hw->adv_cfg, fc);
	return err;
	}

	/* flow control on mac */
	if ((fc ^ hw->flowctrl) & (ALX_FC_RX \| ALX_FC_TX))
	alx_cfg_mac_flowcontrol(hw, fc);

	hw->flowctrl = fc;

	return 0;
	}

	static u32 alx_get_msglevel(struct net_device *netdev)
	{
	struct alx_priv *alx = netdev_priv(netdev);

	return alx->msg_enable;
	}

	static void alx_set_msglevel(struct net_device *netdev, u32 data)
	{
	struct alx_priv *alx = netdev_priv(netdev);

	alx->msg_enable = data;
	}

	static void alx_get_wol(struct net_device netdev, struct ethtool_wolinfo wol)
	{
	struct alx_priv *alx = netdev_priv(netdev);
	struct alx_hw *hw = &alx->hw;

	wol->supported = WAKE_MAGIC \| WAKE_PHY;
	wol->wolopts = 0;

	if (hw->sleep_ctrl & ALX_SLEEP_WOL_MAGIC)
	wol->wolopts \|= WAKE_MAGIC;
	if (hw->sleep_ctrl & ALX_SLEEP_WOL_PHY)
	wol->wolopts \|= WAKE_PHY;
	}

	static int alx_set_wol(struct net_device netdev, struct ethtool_wolinfo wol)
	{
	struct alx_priv *alx = netdev_priv(netdev);
	struct alx_hw *hw = &alx->hw;

	if (wol->wolopts & (WAKE_ARP \| WAKE_MAGICSECURE \|
	WAKE_UCAST \| WAKE_BCAST \| WAKE_MCAST))
	return -EOPNOTSUPP;

	hw->sleep_ctrl = 0;

	if (wol->wolopts & WAKE_MAGIC)
	hw->sleep_ctrl \|= ALX_SLEEP_WOL_MAGIC;
	if (wol->wolopts & WAKE_PHY)
	hw->sleep_ctrl \|= ALX_SLEEP_WOL_PHY;

	device_set_wakeup_enable(&alx->hw.pdev->dev, hw->sleep_ctrl);

	return 0;
	}

	static void alx_get_drvinfo(struct net_device *netdev,
	struct ethtool_drvinfo *drvinfo)
	{
	struct alx_priv *alx = netdev_priv(netdev);

	strlcpy(drvinfo->driver, alx_drv_name, sizeof(drvinfo->driver));
	strlcpy(drvinfo->bus_info, pci_name(alx->hw.pdev),
	sizeof(drvinfo->bus_info));
	}

	const struct ethtool_ops alx_ethtool_ops = {
	.get_settings = alx_get_settings,
	.set_settings = alx_set_settings,
	.get_pauseparam = alx_get_pauseparam,
	.set_pauseparam = alx_set_pauseparam,
	.get_drvinfo = alx_get_drvinfo,
	.get_msglevel = alx_get_msglevel,
	.set_msglevel = alx_set_msglevel,
	.get_wol = alx_get_wol,
	.set_wol = alx_set_wol,
	.get_link = ethtool_op_get_link,
	};