linux/drivers/net/ethernet/mellanox/mlx5/core/sriov.c

/*
 * Copyright (c) 2014, Mellanox Technologies inc.  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/pci.h>
#include <linux/mlx5/driver.h>
#include <linux/mlx5/vport.h>
#include "mlx5_core.h"
#include "mlx5_irq.h"
#include "eswitch.h"

static int sriov_restore_guids(struct mlx5_core_dev *dev, int vf, u16 func_id)
{ … }

static int mlx5_device_enable_sriov(struct mlx5_core_dev *dev, int num_vfs)
{ … }

static void
mlx5_device_disable_sriov(struct mlx5_core_dev *dev, int num_vfs, bool clear_vf, bool num_vf_change)
{ … }

static int mlx5_sriov_enable(struct pci_dev *pdev, int num_vfs)
{ … }

void mlx5_sriov_disable(struct pci_dev *pdev, bool num_vf_change)
{ … }

int mlx5_core_sriov_configure(struct pci_dev *pdev, int num_vfs)
{ … }

int mlx5_core_sriov_set_msix_vec_count(struct pci_dev *vf, int msix_vec_count)
{ … }

int mlx5_sriov_attach(struct mlx5_core_dev *dev)
{ … }

void mlx5_sriov_detach(struct mlx5_core_dev *dev)
{ … }

static u16 mlx5_get_max_vfs(struct mlx5_core_dev *dev)
{ … }

int mlx5_sriov_init(struct mlx5_core_dev *dev)
{ … }

void mlx5_sriov_cleanup(struct mlx5_core_dev *dev)
{ … }

/**
 * mlx5_sriov_blocking_notifier_unregister - Unregister a VF from
 * a notification block chain.
 *
 * @mdev: The mlx5 core device.
 * @vf_id: The VF id.
 * @nb: The notifier block to be unregistered.
 */
void mlx5_sriov_blocking_notifier_unregister(struct mlx5_core_dev *mdev,
					     int vf_id,
					     struct notifier_block *nb)
{ … }
EXPORT_SYMBOL(…);

/**
 * mlx5_sriov_blocking_notifier_register - Register a VF notification
 * block chain.
 *
 * @mdev: The mlx5 core device.
 * @vf_id: The VF id.
 * @nb: The notifier block to be called upon the VF events.
 *
 * Returns 0 on success or an error code.
 */
int mlx5_sriov_blocking_notifier_register(struct mlx5_core_dev *mdev,
					  int vf_id,
					  struct notifier_block *nb)
{ … }
EXPORT_SYMBOL(…);