drivers/staging/octeon/ethernet-common.c - linux - Git at Google

 /**********************************************************************
  * Author: Cavium Networks
  *
  * Contact: support@caviumnetworks.com
  * This file is part of the OCTEON SDK
  *
  * Copyright (c) 2003-2007 Cavium Networks
  *
  * This file is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License, Version 2, as
  * published by the Free Software Foundation.
  *
  * This file is distributed in the hope that it will be useful, but
  * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
  * NONINFRINGEMENT.  See the GNU General Public License for more
  * details.
  *
  * You should have received a copy of the GNU General Public License
  * along with this file; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  * or visit http://www.gnu.org/licenses/.
  *
  * This file may also be available under a different license from Cavium.
  * Contact Cavium Networks for more information
 **********************************************************************/
 #include <linux/kernel.h>
 #include <linux/mii.h>
 #include <net/dst.h>

 #include <asm/atomic.h>
 #include <asm/octeon/octeon.h>

 #include "ethernet-defines.h"
 #include "ethernet-tx.h"
 #include "ethernet-mdio.h"
 #include "ethernet-util.h"
 #include "octeon-ethernet.h"
 #include "ethernet-common.h"

 #include "cvmx-pip.h"
 #include "cvmx-pko.h"
 #include "cvmx-fau.h"
 #include "cvmx-helper.h"

 #include "cvmx-gmxx-defs.h"

 /**
  * Get the low level ethernet statistics
  *
  * @dev:    Device to get the statistics from
  * Returns Pointer to the statistics
  */
 static struct net_device_stats *cvm_oct_common_get_stats(struct net_device *dev)
 {
 	cvmx_pip_port_status_t rx_status;
 	cvmx_pko_port_status_t tx_status;
 	struct octeon_ethernet *priv = netdev_priv(dev);

 	if (priv->port < CVMX_PIP_NUM_INPUT_PORTS) {
 		if (octeon_is_simulation()) {
 			/* The simulator doesn't support statistics */
 			memset(&rx_status, 0, sizeof(rx_status));
 			memset(&tx_status, 0, sizeof(tx_status));
 		} else {
 			cvmx_pip_get_port_status(priv->port, 1, &rx_status);
 			cvmx_pko_get_port_status(priv->port, 1, &tx_status);
 		}

 		priv->stats.rx_packets += rx_status.inb_packets;
 		priv->stats.tx_packets += tx_status.packets;
 		priv->stats.rx_bytes += rx_status.inb_octets;
 		priv->stats.tx_bytes += tx_status.octets;
 		priv->stats.multicast += rx_status.multicast_packets;
 		priv->stats.rx_crc_errors += rx_status.inb_errors;
 		priv->stats.rx_frame_errors += rx_status.fcs_align_err_packets;

 		/*
 		 * The drop counter must be incremented atomically
 		 * since the RX tasklet also increments it.
 		 */
 #ifdef CONFIG_64BIT
 		atomic64_add(rx_status.dropped_packets,
 			     (atomic64_t *)&priv->stats.rx_dropped);
 #else
 		atomic_add(rx_status.dropped_packets,
 			     (atomic_t *)&priv->stats.rx_dropped);
 #endif
 	}

 	return &priv->stats;
 }

 /**
  * Set the multicast list. Currently unimplemented.
  *
  * @dev:    Device to work on
  */
 static void cvm_oct_common_set_multicast_list(struct net_device *dev)
 {
 	union cvmx_gmxx_prtx_cfg gmx_cfg;
 	struct octeon_ethernet *priv = netdev_priv(dev);
 	int interface = INTERFACE(priv->port);
 	int index = INDEX(priv->port);

 	if ((interface < 2)
 	    && (cvmx_helper_interface_get_mode(interface) !=
 		CVMX_HELPER_INTERFACE_MODE_SPI)) {
 		union cvmx_gmxx_rxx_adr_ctl control;
 		control.u64 = 0;
 		control.s.bcst = 1;	/* Allow broadcast MAC addresses */

 		if (dev->mc_list || (dev->flags & IFF_ALLMULTI) ||
 		    (dev->flags & IFF_PROMISC))
 			/* Force accept multicast packets */
 			control.s.mcst = 2;
 		else
 			/* Force reject multicat packets */
 			control.s.mcst = 1;

 		if (dev->flags & IFF_PROMISC)
 			/*
 			 * Reject matches if promisc. Since CAM is
 			 * shut off, should accept everything.
 			 */
 			control.s.cam_mode = 0;
 		else
 			/* Filter packets based on the CAM */
 			control.s.cam_mode = 1;

 		gmx_cfg.u64 =
 		    cvmx_read_csr(CVMX_GMXX_PRTX_CFG(index, interface));
 		cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index, interface),
 			       gmx_cfg.u64 & ~1ull);

 		cvmx_write_csr(CVMX_GMXX_RXX_ADR_CTL(index, interface),
 			       control.u64);
 		if (dev->flags & IFF_PROMISC)
 			cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM_EN
 				       (index, interface), 0);
 		else
 			cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM_EN
 				       (index, interface), 1);

 		cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index, interface),
 			       gmx_cfg.u64);
 	}
 }

 /**
  * Set the hardware MAC address for a device
  *
  * @dev:    Device to change the MAC address for
  * @addr:   Address structure to change it too. MAC address is addr + 2.
  * Returns Zero on success
  */
 static int cvm_oct_common_set_mac_address(struct net_device *dev, void *addr)
 {
 	struct octeon_ethernet *priv = netdev_priv(dev);
 	union cvmx_gmxx_prtx_cfg gmx_cfg;
 	int interface = INTERFACE(priv->port);
 	int index = INDEX(priv->port);

 	memcpy(dev->dev_addr, addr + 2, 6);

 	if ((interface < 2)
 	    && (cvmx_helper_interface_get_mode(interface) !=
 		CVMX_HELPER_INTERFACE_MODE_SPI)) {
 		int i;
 		uint8_t *ptr = addr;
 		uint64_t mac = 0;
 		for (i = 0; i < 6; i++)
 			mac = (mac << 8) | (uint64_t) (ptr[i + 2]);

 		gmx_cfg.u64 =
 		    cvmx_read_csr(CVMX_GMXX_PRTX_CFG(index, interface));
 		cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index, interface),
 			       gmx_cfg.u64 & ~1ull);

 		cvmx_write_csr(CVMX_GMXX_SMACX(index, interface), mac);
 		cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM0(index, interface),
 			       ptr[2]);
 		cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM1(index, interface),
 			       ptr[3]);
 		cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM2(index, interface),
 			       ptr[4]);
 		cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM3(index, interface),
 			       ptr[5]);
 		cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM4(index, interface),
 			       ptr[6]);
 		cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM5(index, interface),
 			       ptr[7]);
 		cvm_oct_common_set_multicast_list(dev);
 		cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index, interface),
 			       gmx_cfg.u64);
 	}
 	return 0;
 }

 /**
  * Change the link MTU. Unimplemented
  *
  * @dev:     Device to change
  * @new_mtu: The new MTU
  *
  * Returns Zero on success
  */
 static int cvm_oct_common_change_mtu(struct net_device *dev, int new_mtu)
 {
 	struct octeon_ethernet *priv = netdev_priv(dev);
 	int interface = INTERFACE(priv->port);
 	int index = INDEX(priv->port);
 #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
 	int vlan_bytes = 4;
 #else
 	int vlan_bytes = 0;
 #endif

 	/*
 	 * Limit the MTU to make sure the ethernet packets are between
 	 * 64 bytes and 65535 bytes.
 	 */
 	if ((new_mtu + 14 + 4 + vlan_bytes < 64)
 	    || (new_mtu + 14 + 4 + vlan_bytes > 65392)) {
 		pr_err("MTU must be between %d and %d.\n",
 		       64 - 14 - 4 - vlan_bytes, 65392 - 14 - 4 - vlan_bytes);
 		return -EINVAL;
 	}
 	dev->mtu = new_mtu;

 	if ((interface < 2)
 	    && (cvmx_helper_interface_get_mode(interface) !=
 		CVMX_HELPER_INTERFACE_MODE_SPI)) {
 		/* Add ethernet header and FCS, and VLAN if configured. */
 		int max_packet = new_mtu + 14 + 4 + vlan_bytes;

 		if (OCTEON_IS_MODEL(OCTEON_CN3XXX)
 		    || OCTEON_IS_MODEL(OCTEON_CN58XX)) {
 			/* Signal errors on packets larger than the MTU */
 			cvmx_write_csr(CVMX_GMXX_RXX_FRM_MAX(index, interface),
 				       max_packet);
 		} else {
 			/*
 			 * Set the hardware to truncate packets larger
 			 * than the MTU and smaller the 64 bytes.
 			 */
 			union cvmx_pip_frm_len_chkx frm_len_chk;
 			frm_len_chk.u64 = 0;
 			frm_len_chk.s.minlen = 64;
 			frm_len_chk.s.maxlen = max_packet;
 			cvmx_write_csr(CVMX_PIP_FRM_LEN_CHKX(interface),
 				       frm_len_chk.u64);
 		}
 		/*
 		 * Set the hardware to truncate packets larger than
 		 * the MTU. The jabber register must be set to a
 		 * multiple of 8 bytes, so round up.
 		 */
 		cvmx_write_csr(CVMX_GMXX_RXX_JABBER(index, interface),
 			       (max_packet + 7) & ~7u);
 	}
 	return 0;
 }

 /**
  * Per network device initialization
  *
  * @dev:    Device to initialize
  * Returns Zero on success
  */
 int cvm_oct_common_init(struct net_device *dev)
 {
 	static int count;
 	char mac[8] = { 0x00, 0x00,
 		octeon_bootinfo->mac_addr_base[0],
 		octeon_bootinfo->mac_addr_base[1],
 		octeon_bootinfo->mac_addr_base[2],
 		octeon_bootinfo->mac_addr_base[3],
 		octeon_bootinfo->mac_addr_base[4],
 		octeon_bootinfo->mac_addr_base[5] + count
 	};
 	struct octeon_ethernet *priv = netdev_priv(dev);

 	/*
 	 * Force the interface to use the POW send if always_use_pow
 	 * was specified or it is in the pow send list.
 	 */
 	if ((pow_send_group != -1)
 	    && (always_use_pow || strstr(pow_send_list, dev->name)))
 		priv->queue = -1;

 	if (priv->queue != -1) {
 		dev->hard_start_xmit = cvm_oct_xmit;
 		if (USE_HW_TCPUDP_CHECKSUM)
 			dev->features |= NETIF_F_IP_CSUM;
 	} else
 		dev->hard_start_xmit = cvm_oct_xmit_pow;
 	count++;

 	dev->get_stats = cvm_oct_common_get_stats;
 	dev->set_mac_address = cvm_oct_common_set_mac_address;
 	dev->set_multicast_list = cvm_oct_common_set_multicast_list;
 	dev->change_mtu = cvm_oct_common_change_mtu;
 	dev->do_ioctl = cvm_oct_ioctl;
 	/* We do our own locking, Linux doesn't need to */
 	dev->features |= NETIF_F_LLTX;
 	SET_ETHTOOL_OPS(dev, &cvm_oct_ethtool_ops);
 #ifdef CONFIG_NET_POLL_CONTROLLER
 	dev->poll_controller = cvm_oct_poll_controller;
 #endif

 	cvm_oct_mdio_setup_device(dev);
 	dev->set_mac_address(dev, mac);
 	dev->change_mtu(dev, dev->mtu);

 	/*
 	 * Zero out stats for port so we won't mistakenly show
 	 * counters from the bootloader.
 	 */
 	memset(dev->get_stats(dev), 0, sizeof(struct net_device_stats));

 	return 0;
 }

 void cvm_oct_common_uninit(struct net_device *dev)
 {
 	/* Currently nothing to do */
 }
	/**********************************************************************
	* Author: Cavium Networks
	*
	* Contact: support@caviumnetworks.com
	* This file is part of the OCTEON SDK
	*
	* Copyright (c) 2003-2007 Cavium Networks
	*
	* This file is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License, Version 2, as
	* published by the Free Software Foundation.
	*
	* This file is distributed in the hope that it will be useful, but
	* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
	* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
	* NONINFRINGEMENT. See the GNU General Public License for more
	* details.
	*
	* You should have received a copy of the GNU General Public License
	* along with this file; if not, write to the Free Software
	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	* or visit http://www.gnu.org/licenses/.
	*
	* This file may also be available under a different license from Cavium.
	* Contact Cavium Networks for more information
	**********************************************************************/
	#include <linux/kernel.h>
	#include <linux/mii.h>
	#include <net/dst.h>

	#include <asm/atomic.h>
	#include <asm/octeon/octeon.h>

	#include "ethernet-defines.h"
	#include "ethernet-tx.h"
	#include "ethernet-mdio.h"
	#include "ethernet-util.h"
	#include "octeon-ethernet.h"
	#include "ethernet-common.h"

	#include "cvmx-pip.h"
	#include "cvmx-pko.h"
	#include "cvmx-fau.h"
	#include "cvmx-helper.h"

	#include "cvmx-gmxx-defs.h"

	/**
	* Get the low level ethernet statistics
	*
	* @dev: Device to get the statistics from
	* Returns Pointer to the statistics
	*/
	static struct net_device_stats cvm_oct_common_get_stats(struct net_device dev)
	{
	cvmx_pip_port_status_t rx_status;
	cvmx_pko_port_status_t tx_status;
	struct octeon_ethernet *priv = netdev_priv(dev);

	if (priv->port < CVMX_PIP_NUM_INPUT_PORTS) {
	if (octeon_is_simulation()) {
	/* The simulator doesn't support statistics */
	memset(&rx_status, 0, sizeof(rx_status));
	memset(&tx_status, 0, sizeof(tx_status));
	} else {
	cvmx_pip_get_port_status(priv->port, 1, &rx_status);
	cvmx_pko_get_port_status(priv->port, 1, &tx_status);
	}

	priv->stats.rx_packets += rx_status.inb_packets;
	priv->stats.tx_packets += tx_status.packets;
	priv->stats.rx_bytes += rx_status.inb_octets;
	priv->stats.tx_bytes += tx_status.octets;
	priv->stats.multicast += rx_status.multicast_packets;
	priv->stats.rx_crc_errors += rx_status.inb_errors;
	priv->stats.rx_frame_errors += rx_status.fcs_align_err_packets;

	/*
	* The drop counter must be incremented atomically
	* since the RX tasklet also increments it.
	*/
	#ifdef CONFIG_64BIT
	atomic64_add(rx_status.dropped_packets,
	(atomic64_t *)&priv->stats.rx_dropped);
	#else
	atomic_add(rx_status.dropped_packets,
	(atomic_t *)&priv->stats.rx_dropped);
	#endif
	}

	return &priv->stats;
	}

	/**
	* Set the multicast list. Currently unimplemented.
	*
	* @dev: Device to work on
	*/
	static void cvm_oct_common_set_multicast_list(struct net_device *dev)
	{
	union cvmx_gmxx_prtx_cfg gmx_cfg;
	struct octeon_ethernet *priv = netdev_priv(dev);
	int interface = INTERFACE(priv->port);
	int index = INDEX(priv->port);

	if ((interface < 2)
	&& (cvmx_helper_interface_get_mode(interface) !=
	CVMX_HELPER_INTERFACE_MODE_SPI)) {
	union cvmx_gmxx_rxx_adr_ctl control;
	control.u64 = 0;
	control.s.bcst = 1; /* Allow broadcast MAC addresses */

	if (dev->mc_list \|\| (dev->flags & IFF_ALLMULTI) \|\|
	(dev->flags & IFF_PROMISC))
	/* Force accept multicast packets */
	control.s.mcst = 2;
	else
	/* Force reject multicat packets */
	control.s.mcst = 1;

	if (dev->flags & IFF_PROMISC)
	/*
	* Reject matches if promisc. Since CAM is
	* shut off, should accept everything.
	*/
	control.s.cam_mode = 0;
	else
	/* Filter packets based on the CAM */
	control.s.cam_mode = 1;

	gmx_cfg.u64 =
	cvmx_read_csr(CVMX_GMXX_PRTX_CFG(index, interface));
	cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index, interface),
	gmx_cfg.u64 & ~1ull);

	cvmx_write_csr(CVMX_GMXX_RXX_ADR_CTL(index, interface),
	control.u64);
	if (dev->flags & IFF_PROMISC)
	cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM_EN
	(index, interface), 0);
	else
	cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM_EN
	(index, interface), 1);

	cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index, interface),
	gmx_cfg.u64);
	}
	}

	/**
	* Set the hardware MAC address for a device
	*
	* @dev: Device to change the MAC address for
	* @addr: Address structure to change it too. MAC address is addr + 2.
	* Returns Zero on success
	*/
	static int cvm_oct_common_set_mac_address(struct net_device dev, void addr)
	{
	struct octeon_ethernet *priv = netdev_priv(dev);
	union cvmx_gmxx_prtx_cfg gmx_cfg;
	int interface = INTERFACE(priv->port);
	int index = INDEX(priv->port);

	memcpy(dev->dev_addr, addr + 2, 6);

	if ((interface < 2)
	&& (cvmx_helper_interface_get_mode(interface) !=
	CVMX_HELPER_INTERFACE_MODE_SPI)) {
	int i;
	uint8_t *ptr = addr;
	uint64_t mac = 0;
	for (i = 0; i < 6; i++)
	mac = (mac << 8) \| (uint64_t) (ptr[i + 2]);

	gmx_cfg.u64 =
	cvmx_read_csr(CVMX_GMXX_PRTX_CFG(index, interface));
	cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index, interface),
	gmx_cfg.u64 & ~1ull);

	cvmx_write_csr(CVMX_GMXX_SMACX(index, interface), mac);
	cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM0(index, interface),
	ptr[2]);
	cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM1(index, interface),
	ptr[3]);
	cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM2(index, interface),
	ptr[4]);
	cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM3(index, interface),
	ptr[5]);
	cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM4(index, interface),
	ptr[6]);
	cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM5(index, interface),
	ptr[7]);
	cvm_oct_common_set_multicast_list(dev);
	cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index, interface),
	gmx_cfg.u64);
	}
	return 0;
	}

	/**
	* Change the link MTU. Unimplemented
	*
	* @dev: Device to change
	* @new_mtu: The new MTU
	*
	* Returns Zero on success
	*/
	static int cvm_oct_common_change_mtu(struct net_device *dev, int new_mtu)
	{
	struct octeon_ethernet *priv = netdev_priv(dev);
	int interface = INTERFACE(priv->port);
	int index = INDEX(priv->port);
	#if defined(CONFIG_VLAN_8021Q) \|\| defined(CONFIG_VLAN_8021Q_MODULE)
	int vlan_bytes = 4;
	#else
	int vlan_bytes = 0;
	#endif

	/*
	* Limit the MTU to make sure the ethernet packets are between
	* 64 bytes and 65535 bytes.
	*/
	if ((new_mtu + 14 + 4 + vlan_bytes < 64)
	\|\| (new_mtu + 14 + 4 + vlan_bytes > 65392)) {
	pr_err("MTU must be between %d and %d.\n",
	64 - 14 - 4 - vlan_bytes, 65392 - 14 - 4 - vlan_bytes);
	return -EINVAL;
	}
	dev->mtu = new_mtu;

	if ((interface < 2)
	&& (cvmx_helper_interface_get_mode(interface) !=
	CVMX_HELPER_INTERFACE_MODE_SPI)) {
	/* Add ethernet header and FCS, and VLAN if configured. */
	int max_packet = new_mtu + 14 + 4 + vlan_bytes;

	if (OCTEON_IS_MODEL(OCTEON_CN3XXX)
	\|\| OCTEON_IS_MODEL(OCTEON_CN58XX)) {
	/* Signal errors on packets larger than the MTU */
	cvmx_write_csr(CVMX_GMXX_RXX_FRM_MAX(index, interface),
	max_packet);
	} else {
	/*
	* Set the hardware to truncate packets larger
	* than the MTU and smaller the 64 bytes.
	*/
	union cvmx_pip_frm_len_chkx frm_len_chk;
	frm_len_chk.u64 = 0;
	frm_len_chk.s.minlen = 64;
	frm_len_chk.s.maxlen = max_packet;
	cvmx_write_csr(CVMX_PIP_FRM_LEN_CHKX(interface),
	frm_len_chk.u64);
	}
	/*
	* Set the hardware to truncate packets larger than
	* the MTU. The jabber register must be set to a
	* multiple of 8 bytes, so round up.
	*/
	cvmx_write_csr(CVMX_GMXX_RXX_JABBER(index, interface),
	(max_packet + 7) & ~7u);
	}
	return 0;
	}

	/**
	* Per network device initialization
	*
	* @dev: Device to initialize
	* Returns Zero on success
	*/
	int cvm_oct_common_init(struct net_device *dev)
	{
	static int count;
	char mac[8] = { 0x00, 0x00,
	octeon_bootinfo->mac_addr_base[0],
	octeon_bootinfo->mac_addr_base[1],
	octeon_bootinfo->mac_addr_base[2],
	octeon_bootinfo->mac_addr_base[3],
	octeon_bootinfo->mac_addr_base[4],
	octeon_bootinfo->mac_addr_base[5] + count
	};
	struct octeon_ethernet *priv = netdev_priv(dev);

	/*
	* Force the interface to use the POW send if always_use_pow
	* was specified or it is in the pow send list.
	*/
	if ((pow_send_group != -1)
	&& (always_use_pow \|\| strstr(pow_send_list, dev->name)))
	priv->queue = -1;

	if (priv->queue != -1) {
	dev->hard_start_xmit = cvm_oct_xmit;
	if (USE_HW_TCPUDP_CHECKSUM)
	dev->features \|= NETIF_F_IP_CSUM;
	} else
	dev->hard_start_xmit = cvm_oct_xmit_pow;
	count++;

	dev->get_stats = cvm_oct_common_get_stats;
	dev->set_mac_address = cvm_oct_common_set_mac_address;
	dev->set_multicast_list = cvm_oct_common_set_multicast_list;
	dev->change_mtu = cvm_oct_common_change_mtu;
	dev->do_ioctl = cvm_oct_ioctl;
	/* We do our own locking, Linux doesn't need to */
	dev->features \|= NETIF_F_LLTX;
	SET_ETHTOOL_OPS(dev, &cvm_oct_ethtool_ops);
	#ifdef CONFIG_NET_POLL_CONTROLLER
	dev->poll_controller = cvm_oct_poll_controller;
	#endif

	cvm_oct_mdio_setup_device(dev);
	dev->set_mac_address(dev, mac);
	dev->change_mtu(dev, dev->mtu);

	/*
	* Zero out stats for port so we won't mistakenly show
	* counters from the bootloader.
	*/
	memset(dev->get_stats(dev), 0, sizeof(struct net_device_stats));

	return 0;
	}

	void cvm_oct_common_uninit(struct net_device *dev)
	{
	/* Currently nothing to do */
	}