path: root/drivers/net/ethernet/mellanox/mlx4/en_netdev.c

/*
 * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 */

#include <linux/etherdevice.h>
#include <linux/tcp.h>
#include <linux/if_vlan.h>
#include <linux/delay.h>
#include <linux/slab.h>

#include <linux/mlx4/driver.h>
#include <linux/mlx4/device.h>
#include <linux/mlx4/cmd.h>
#include <linux/mlx4/cq.h>

#include "mlx4_en.h"
#include "en_port.h"

static int mlx4_en_setup_tc(struct net_device *dev, u8 up)
{
	struct mlx4_en_priv *priv = netdev_priv(dev);
	int i;
	unsigned int q, offset = 0;

	if (up && up != MLX4_EN_NUM_UP)
		return -EINVAL;

	netdev_set_num_tc(dev, up);

	/* Partition Tx queues evenly amongst UP's */
	q = priv->tx_ring_num / up;
	for (i = 0; i < up; i++) {
		netdev_set_tc_queue(dev, i, q, offset);
		offset += q;
	}

	return 0;
}

static int mlx4_en_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
{
	struct mlx4_en_priv *priv = netdev_priv(dev);
	struct mlx4_en_dev *mdev = priv->mdev;
	int err;
	int idx;

	en_dbg(HW, priv, "adding VLAN:%d\n", vid);

	set_bit(vid, priv->active_vlans);

	/* Add VID to port VLAN filter */
	mutex_lock(&mdev->state_lock);
	if (mdev->device_up && priv->port_up) {
		err = mlx4_SET_VLAN_FLTR(mdev->dev, priv);
		if (err)
			en_err(priv, "Failed configuring VLAN filter\n");
	}
	if (mlx4_register_vlan(mdev->dev, priv->port, vid, &idx))
		en_err(priv, "failed adding vlan %d\n", vid);
	mutex_unlock(&mdev->state_lock);

	return 0;
}

static int mlx4_en_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
{
	struct mlx4_en_priv *priv = netdev_priv(dev);
	struct mlx4_en_dev *mdev = priv->mdev;
	int err;
	int idx;

	en_dbg(HW, priv,