/*
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* Copyright (c) 2017, Mellanox Technologies. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef __MLX5E_IPOB_H__
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#define __MLX5E_IPOB_H__
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#ifdef CONFIG_MLX5_CORE_IPOIB
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#include <linux/mlx5/fs.h>
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#include "en.h"
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#define MLX5I_MAX_NUM_TC 1
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extern const struct ethtool_ops mlx5i_ethtool_ops;
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extern const struct ethtool_ops mlx5i_pkey_ethtool_ops;
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extern const struct mlx5e_rx_handlers mlx5i_rx_handlers;
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#define MLX5_IB_GRH_BYTES 40
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#define MLX5_IPOIB_ENCAP_LEN 4
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#define MLX5_IPOIB_PSEUDO_LEN 20
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#define MLX5_IPOIB_HARD_LEN (MLX5_IPOIB_PSEUDO_LEN + MLX5_IPOIB_ENCAP_LEN)
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/* ipoib rdma netdev's private data structure */
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struct mlx5i_priv {
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struct rdma_netdev rn; /* keep this first */
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u32 qpn;
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bool sub_interface;
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u32 qkey;
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u16 pkey_index;
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struct mlx5i_pkey_qpn_ht *qpn_htbl;
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char *mlx5e_priv[];
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};
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int mlx5i_create_tis(struct mlx5_core_dev *mdev, u32 underlay_qpn, u32 *tisn);
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/* Underlay QP create/destroy functions */
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int mlx5i_create_underlay_qp(struct mlx5e_priv *priv);
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void mlx5i_destroy_underlay_qp(struct mlx5_core_dev *mdev, u32 qpn);
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/* Underlay QP state modification init/uninit functions */
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int mlx5i_init_underlay_qp(struct mlx5e_priv *priv);
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void mlx5i_uninit_underlay_qp(struct mlx5e_priv *priv);
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/* Allocate/Free underlay QPN to net-device hash table */
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int mlx5i_pkey_qpn_ht_init(struct net_device *netdev);
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void mlx5i_pkey_qpn_ht_cleanup(struct net_device *netdev);
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/* Add/Remove an underlay QPN to net-device mapping to/from the hash table */
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int mlx5i_pkey_add_qpn(struct net_device *netdev, u32 qpn);
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int mlx5i_pkey_del_qpn(struct net_device *netdev, u32 qpn);
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/* Get the net-device corresponding to the given underlay QPN */
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struct net_device *mlx5i_pkey_get_netdev(struct net_device *netdev, u32 qpn);
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/* Shared ndo functions */
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int mlx5i_dev_init(struct net_device *dev);
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void mlx5i_dev_cleanup(struct net_device *dev);
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int mlx5i_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
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/* Parent profile functions */
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int mlx5i_init(struct mlx5_core_dev *mdev,
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struct net_device *netdev,
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const struct mlx5e_profile *profile,
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void *ppriv);
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void mlx5i_cleanup(struct mlx5e_priv *priv);
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int mlx5i_update_nic_rx(struct mlx5e_priv *priv);
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/* Get child interface nic profile */
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const struct mlx5e_profile *mlx5i_pkey_get_profile(void);
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/* Extract mlx5e_priv from IPoIB netdev */
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#define mlx5i_epriv(netdev) ((void *)(((struct mlx5i_priv *)netdev_priv(netdev))->mlx5e_priv))
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struct mlx5_wqe_eth_pad {
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u8 rsvd0[16];
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};
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struct mlx5i_tx_wqe {
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struct mlx5_wqe_ctrl_seg ctrl;
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struct mlx5_wqe_datagram_seg datagram;
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struct mlx5_wqe_eth_pad pad;
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struct mlx5_wqe_eth_seg eth;
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struct mlx5_wqe_data_seg data[];
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};
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#define MLX5I_SQ_FETCH_WQE(sq, pi) \
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((struct mlx5i_tx_wqe *)mlx5e_fetch_wqe(&(sq)->wq, pi, sizeof(struct mlx5i_tx_wqe)))
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void mlx5i_sq_xmit(struct mlx5e_txqsq *sq, struct sk_buff *skb,
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struct mlx5_av *av, u32 dqpn, u32 dqkey, bool xmit_more);
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void mlx5i_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats);
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#endif /* CONFIG_MLX5_CORE_IPOIB */
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#endif /* __MLX5E_IPOB_H__ */
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