diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.h')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.h | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.h b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.h new file mode 100644 index 000000000..f3f2af972 --- /dev/null +++ b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.h @@ -0,0 +1,127 @@ +/* + * 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. + */ + +#ifndef __MLX5E_IPOB_H__ +#define __MLX5E_IPOB_H__ + +#ifdef CONFIG_MLX5_CORE_IPOIB + +#include <linux/mlx5/fs.h> +#include "en.h" + +#define MLX5I_MAX_NUM_TC 1 + +extern const struct ethtool_ops mlx5i_ethtool_ops; +extern const struct ethtool_ops mlx5i_pkey_ethtool_ops; +extern const struct mlx5e_rx_handlers mlx5i_rx_handlers; + +#define MLX5_IB_GRH_BYTES 40 +#define MLX5_IPOIB_ENCAP_LEN 4 +#define MLX5_IPOIB_PSEUDO_LEN 20 +#define MLX5_IPOIB_HARD_LEN (MLX5_IPOIB_PSEUDO_LEN + MLX5_IPOIB_ENCAP_LEN) + +/* ipoib rdma netdev's private data structure */ +struct mlx5i_priv { + struct rdma_netdev rn; /* keep this first */ + u32 qpn; + bool sub_interface; + u32 num_sub_interfaces; + u32 qkey; + u16 pkey_index; + struct mlx5i_pkey_qpn_ht *qpn_htbl; + struct net_device *parent_dev; + char *mlx5e_priv[]; +}; + +int mlx5i_create_tis(struct mlx5_core_dev *mdev, u32 underlay_qpn, u32 *tisn); + +/* Underlay QP create/destroy functions */ +int mlx5i_create_underlay_qp(struct mlx5e_priv *priv); +void mlx5i_destroy_underlay_qp(struct mlx5_core_dev *mdev, u32 qpn); + +/* Underlay QP state modification init/uninit functions */ +int mlx5i_init_underlay_qp(struct mlx5e_priv *priv); +void mlx5i_uninit_underlay_qp(struct mlx5e_priv *priv); + +/* Allocate/Free underlay QPN to net-device hash table */ +int mlx5i_pkey_qpn_ht_init(struct net_device *netdev); +void mlx5i_pkey_qpn_ht_cleanup(struct net_device *netdev); + +/* Add/Remove an underlay QPN to net-device mapping to/from the hash table */ +int mlx5i_pkey_add_qpn(struct net_device *netdev, u32 qpn); +int mlx5i_pkey_del_qpn(struct net_device *netdev, u32 qpn); + +/* Get the net-device corresponding to the given underlay QPN */ +struct net_device *mlx5i_pkey_get_netdev(struct net_device *netdev, u32 qpn); + +/* Shared ndo functions */ +int mlx5i_dev_init(struct net_device *dev); +void mlx5i_dev_cleanup(struct net_device *dev); +int mlx5i_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd); + +/* Parent profile functions */ +int mlx5i_init(struct mlx5_core_dev *mdev, struct net_device *netdev); +void mlx5i_cleanup(struct mlx5e_priv *priv); + +int mlx5i_update_nic_rx(struct mlx5e_priv *priv); + +/* Get child interface nic profile */ +const struct mlx5e_profile *mlx5i_pkey_get_profile(void); + +/* Extract mlx5e_priv from IPoIB netdev */ +#define mlx5i_epriv(netdev) ((void *)(((struct mlx5i_priv *)netdev_priv(netdev))->mlx5e_priv)) + +struct mlx5_wqe_eth_pad { + u8 rsvd0[16]; +}; + +struct mlx5i_tx_wqe { + struct mlx5_wqe_ctrl_seg ctrl; + struct mlx5_wqe_datagram_seg datagram; + struct mlx5_wqe_eth_pad pad; + struct mlx5_wqe_eth_seg eth; + struct mlx5_wqe_data_seg data[]; +}; + +#define MLX5I_SQ_FETCH_WQE(sq, pi) \ + ((struct mlx5i_tx_wqe *)mlx5e_fetch_wqe(&(sq)->wq, pi, sizeof(struct mlx5i_tx_wqe))) + +void mlx5i_sq_xmit(struct mlx5e_txqsq *sq, struct sk_buff *skb, + struct mlx5_av *av, u32 dqpn, u32 dqkey, bool xmit_more); +void mlx5i_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats); + +/* Reference management for child to parent interfaces. */ +struct net_device *mlx5i_parent_get(struct net_device *netdev); +void mlx5i_parent_put(struct net_device *netdev); + +#endif /* CONFIG_MLX5_CORE_IPOIB */ +#endif /* __MLX5E_IPOB_H__ */ |