linux/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c

/*
 * Copyright (c) 2017 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 <crypto/internal/geniv.h>
#include <crypto/aead.h>
#include <linux/inetdevice.h>
#include <linux/netdevice.h>
#include <net/netevent.h>

#include "en.h"
#include "eswitch.h"
#include "ipsec.h"
#include "ipsec_rxtx.h"
#include "en_rep.h"

#define MLX5_IPSEC_RESCHED …
#define MLX5E_IPSEC_TUNNEL_SA …

static struct mlx5e_ipsec_sa_entry *to_ipsec_sa_entry(struct xfrm_state *x)
{ … }

static struct mlx5e_ipsec_pol_entry *to_ipsec_pol_entry(struct xfrm_policy *x)
{ … }

static void mlx5e_ipsec_handle_sw_limits(struct work_struct *_work)
{ … }

static bool mlx5e_ipsec_update_esn_state(struct mlx5e_ipsec_sa_entry *sa_entry)
{ … }

static void mlx5e_ipsec_init_limits(struct mlx5e_ipsec_sa_entry *sa_entry,
				    struct mlx5_accel_esp_xfrm_attrs *attrs)
{ … }

static void mlx5e_ipsec_init_macs(struct mlx5e_ipsec_sa_entry *sa_entry,
				  struct mlx5_accel_esp_xfrm_attrs *attrs)
{ … }

void mlx5e_ipsec_build_accel_xfrm_attrs(struct mlx5e_ipsec_sa_entry *sa_entry,
					struct mlx5_accel_esp_xfrm_attrs *attrs)
{ … }

static int mlx5e_xfrm_validate_state(struct mlx5_core_dev *mdev,
				     struct xfrm_state *x,
				     struct netlink_ext_ack *extack)
{ … }

static void mlx5e_ipsec_modify_state(struct work_struct *_work)
{ … }

static void mlx5e_ipsec_set_esn_ops(struct mlx5e_ipsec_sa_entry *sa_entry)
{ … }

static void mlx5e_ipsec_handle_netdev_event(struct work_struct *_work)
{ … }

static int mlx5_ipsec_create_work(struct mlx5e_ipsec_sa_entry *sa_entry)
{ … }

static int mlx5e_ipsec_create_dwork(struct mlx5e_ipsec_sa_entry *sa_entry)
{ … }

static int mlx5e_xfrm_add_state(struct xfrm_state *x,
				struct netlink_ext_ack *extack)
{ … }

static void mlx5e_xfrm_del_state(struct xfrm_state *x)
{ … }

static void mlx5e_xfrm_free_state(struct xfrm_state *x)
{ … }

static int mlx5e_ipsec_netevent_event(struct notifier_block *nb,
				      unsigned long event, void *ptr)
{ … }

void mlx5e_ipsec_init(struct mlx5e_priv *priv)
{ … }

void mlx5e_ipsec_cleanup(struct mlx5e_priv *priv)
{ … }

static bool mlx5e_ipsec_offload_ok(struct sk_buff *skb, struct xfrm_state *x)
{ … }

static void mlx5e_xfrm_advance_esn_state(struct xfrm_state *x)
{ … }

static void mlx5e_xfrm_update_stats(struct xfrm_state *x)
{ … }

static int mlx5e_xfrm_validate_policy(struct mlx5_core_dev *mdev,
				      struct xfrm_policy *x,
				      struct netlink_ext_ack *extack)
{ … }

static void
mlx5e_ipsec_build_accel_pol_attrs(struct mlx5e_ipsec_pol_entry *pol_entry,
				  struct mlx5_accel_pol_xfrm_attrs *attrs)
{ … }

static int mlx5e_xfrm_add_policy(struct xfrm_policy *x,
				 struct netlink_ext_ack *extack)
{ … }

static void mlx5e_xfrm_del_policy(struct xfrm_policy *x)
{ … }

static void mlx5e_xfrm_free_policy(struct xfrm_policy *x)
{ … }

static const struct xfrmdev_ops mlx5e_ipsec_xfrmdev_ops = …;

void mlx5e_ipsec_build_netdev(struct mlx5e_priv *priv)
{ … }