path: root/drivers/net/vxge/vxge-ethtool.c

/******************************************************************************
 * This software may be used and distributed according to the terms of
 * the GNU General Public License (GPL), incorporated herein by reference.
 * Drivers based on or derived from this code fall under the GPL and must
 * retain the authorship, copyright and license notice.  This file is not
 * a complete program and may only be used when the entire operating
 * system is licensed under the GPL.
 * See the file COPYING in this distribution for more information.
 *
 * vxge-ethtool.c: Driver for Neterion Inc's X3100 Series 10GbE PCIe I/O
 *                 Virtualized Server Adapter.
 * Copyright(c) 2002-2009 Neterion Inc.
 ******************************************************************************/
#include<linux/ethtool.h>
#include <linux/pci.h>
#include <linux/etherdevice.h>

#include "vxge-ethtool.h"

/**
 * vxge_ethtool_sset - Sets different link parameters.
 * @dev: device pointer.
 * @info: pointer to the structure with parameters given by ethtool to set
 * link information.
 *
 * The function sets different link parameters provided by the user onto
 * the NIC.
 * Return value:
 * 0 on success.
 */

static int vxge_ethtool_sset(struct net_device *dev, struct ethtool_cmd *info)
{
	/* We currently only support 10Gb/FULL */
	if ((info->autoneg == AUTONEG_ENABLE) ||
	    (info->speed != SPEED_10000) || (info->duplex != DUPLEX_FULL))
		return -EINVAL;

	return 0;
}

/**
 * vxge_ethtool_gset - Return link specific information.
 * @dev: device pointer.
 * @info: pointer to the structure with parameters given by ethtool
 * to return link information.
 *
 * Returns link specific information like speed, duplex etc.. to ethtool.
 * Return value :
 * return 0 on success.
 */
static int vxge_ethtool_gset(struct net_device *dev, struct ethtool_cmd *info)
{
	info->supported = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE);
	info->advertising = (ADVERTISED_10000baseT_Full | ADVERTISED_FIBRE);
	info->port = PORT_FIBRE;

	info->transceiver = XCVR_EXTERNAL;

	if (netif_carrier_ok(dev)) {
		info->speed = SPEED_10000;
		info->duplex = DUPLEX_FULL;
	} else {
		info->speed = -1;
		info->duplex = -1;
	}

	info->autoneg = AUTONEG_DISABLE;
	return 0;
}

/**
 * vxge_ethtool_gdrvinfo - Returns driver specific information.
 * @dev: device pointer.
 * @info: pointer to the structure with parameters given by ethtool to
 * return driver information.
 *
 * Returns driver specefic information like name, version etc.. to ethtool.
 */
static void vxge_ethtool_gdrvinfo(struct net_device *dev,
			struct ethtool_drvinfo *info)
{
	struct vxgedev *vdev;
	vdev = (struct vxgedev *)netdev_priv(dev);
	strlcpy(info->driver, VXGE_DRIVER_NAME, sizeof(VXGE_DRIVER_NAME));
	strlcpy(info->version, DRV_VERSION, sizeof(DRV_VERSION));
	strlcpy(info->fw_version, vdev->fw_version, VXGE_HW_FW_STRLEN);
	strlcpy(info->bus_info, pci_name(vdev->pdev), sizeof(info->bus_info));
	info->regdump_len = sizeof(struct vxge_hw_vpath_reg)
				* vdev->no_of_vpath;

	info->n_stats = STAT_LEN;
}

/**
 * vxge_ethtool_gregs - dumps the entire space of Titan into the buffer.
 * @dev: device pointer.
 * @regs: pointer to the structure with parameters given by ethtool for
 * dumping the registers.
 * @reg_space: The input argumnet into which all the registers are dumped.
 *
 * Dumps the vpath register space of Titan NIC into the user given
 * buffer area.
 */
static void vxge_ethtool_gregs(struct net_device *dev,
			struct ethtool_regs *regs, void *space)
{
	int index, offset;
	enum vxge_hw_status status;
	u64 reg;
	u8 *reg_space = (u8 *) space;
	struct vxgedev *vdev = (struct vxgedev *)netdev_priv(dev);
	struct __vxge_hw_device  *hldev = (struct __vxge_hw_device *)
					pci_get_drvdata(vdev->pdev);

	regs->len = sizeof(struct vxge_hw_vpath_reg) * vdev->no_of_vpath;
	regs->version = vdev->pdev->subsystem_device;
	for (index = 0; index < vdev->no_of_vpath; index++) {