LXR linux/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.h

   1/*
   2 * Copyright (c) 2017, Mellanox Technologies. All rights reserved.
   3 *
   4 * This software is available to you under a choice of one of two
   5 * licenses.  You may choose to be licensed under the terms of the GNU
   6 * General Public License (GPL) Version 2, available from the file
   7 * COPYING in the main directory of this source tree, or the
   8 * OpenIB.org BSD license below:
   9 *
  10 *     Redistribution and use in source and binary forms, with or
  11 *     without modification, are permitted provided that the following
  12 *     conditions are met:
  13 *
  14 *      - Redistributions of source code must retain the above
  15 *        copyright notice, this list of conditions and the following
  16 *        disclaimer.
  17 *
  18 *      - Redistributions in binary form must reproduce the above
  19 *        copyright notice, this list of conditions and the following
  20 *        disclaimer in the documentation and/or other materials
  21 *        provided with the distribution.
  22 *
  23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30 * SOFTWARE.
  31 */
  32
  33#ifndef __MLX5E_IPOB_H__
  34#define __MLX5E_IPOB_H__
  35
  36#include <linux/mlx5/fs.h>
  37#include "en.h"
  38
  39#define MLX5I_MAX_NUM_TC 1
  40
  41extern const struct ethtool_ops mlx5i_ethtool_ops;
  42extern const struct ethtool_ops mlx5i_pkey_ethtool_ops;
  43
  44#define MLX5_IB_GRH_BYTES       40
  45#define MLX5_IPOIB_ENCAP_LEN    4
  46#define MLX5_IPOIB_PSEUDO_LEN   20
  47#define MLX5_IPOIB_HARD_LEN     (MLX5_IPOIB_PSEUDO_LEN + MLX5_IPOIB_ENCAP_LEN)
  48
  49/* ipoib rdma netdev's private data structure */
  50struct mlx5i_priv {
  51        struct rdma_netdev rn; /* keep this first */
  52        struct mlx5_core_qp qp;
  53        bool   sub_interface;
  54        u32    qkey;
  55        u16    pkey_index;
  56        struct mlx5i_pkey_qpn_ht *qpn_htbl;
  57        char  *mlx5e_priv[0];
  58};
  59
  60/* Underlay QP create/destroy functions */
  61int mlx5i_create_underlay_qp(struct mlx5_core_dev *mdev, struct mlx5_core_qp *qp);
  62void mlx5i_destroy_underlay_qp(struct mlx5_core_dev *mdev, struct mlx5_core_qp *qp);
  63
  64/* Underlay QP state modification init/uninit functions */
  65int mlx5i_init_underlay_qp(struct mlx5e_priv *priv);
  66void mlx5i_uninit_underlay_qp(struct mlx5e_priv *priv);
  67
  68/* Allocate/Free underlay QPN to net-device hash table */
  69int mlx5i_pkey_qpn_ht_init(struct net_device *netdev);
  70void mlx5i_pkey_qpn_ht_cleanup(struct net_device *netdev);
  71
  72/* Add/Remove an underlay QPN to net-device mapping to/from the hash table */
  73int mlx5i_pkey_add_qpn(struct net_device *netdev, u32 qpn);
  74int mlx5i_pkey_del_qpn(struct net_device *netdev, u32 qpn);
  75
  76/* Get the net-device corresponding to the given underlay QPN */
  77struct net_device *mlx5i_pkey_get_netdev(struct net_device *netdev, u32 qpn);
  78
  79/* Shared ndo functions */
  80int mlx5i_dev_init(struct net_device *dev);
  81void mlx5i_dev_cleanup(struct net_device *dev);
  82int mlx5i_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
  83
  84/* Parent profile functions */
  85void mlx5i_init(struct mlx5_core_dev *mdev,
  86                struct net_device *netdev,
  87                const struct mlx5e_profile *profile,
  88                void *ppriv);
  89
  90/* Get child interface nic profile */
  91const struct mlx5e_profile *mlx5i_pkey_get_profile(void);
  92
  93/* Extract mlx5e_priv from IPoIB netdev */
  94#define mlx5i_epriv(netdev) ((void *)(((struct mlx5i_priv *)netdev_priv(netdev))->mlx5e_priv))
  95
  96netdev_tx_t mlx5i_sq_xmit(struct mlx5e_txqsq *sq, struct sk_buff *skb,
  97                          struct mlx5_av *av, u32 dqpn, u32 dqkey);
  98void mlx5i_handle_rx_cqe(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe);
  99
 100#endif /* __MLX5E_IPOB_H__ */
 101