2 * Copyright (c) 2018, Mellanox Technologies. All rights reserved.
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32 #ifndef __MLX5_EN_XDP_H__
33 #define __MLX5_EN_XDP_H__
37 #define MLX5E_XDP_MIN_INLINE (ETH_HLEN + VLAN_HLEN)
38 #define MLX5E_XDP_TX_DS_COUNT \
39 ((sizeof(struct mlx5e_tx_wqe) / MLX5_SEND_WQE_DS) + 1 /* SG DS */)
41 int mlx5e_xdp_max_mtu(struct mlx5e_params *params);
42 bool mlx5e_xdp_handle(struct mlx5e_rq *rq, struct mlx5e_dma_info *di,
43 void *va, u16 *rx_headroom, u32 *len);
44 bool mlx5e_poll_xdpsq_cq(struct mlx5e_cq *cq);
45 void mlx5e_free_xdpsq_descs(struct mlx5e_xdpsq *sq);
47 bool mlx5e_xmit_xdp_frame(struct mlx5e_xdpsq *sq, struct mlx5e_xdp_info *xdpi);
48 int mlx5e_xdp_xmit(struct net_device *dev, int n, struct xdp_frame **frames,
51 static inline void mlx5e_xdp_tx_enable(struct mlx5e_priv *priv)
53 set_bit(MLX5E_STATE_XDP_TX_ENABLED, &priv->state);
56 static inline void mlx5e_xdp_tx_disable(struct mlx5e_priv *priv)
58 clear_bit(MLX5E_STATE_XDP_TX_ENABLED, &priv->state);
59 /* let other device's napi(s) see our new state */
63 static inline bool mlx5e_xdp_tx_is_enabled(struct mlx5e_priv *priv)
65 return test_bit(MLX5E_STATE_XDP_TX_ENABLED, &priv->state);
68 static inline void mlx5e_xmit_xdp_doorbell(struct mlx5e_xdpsq *sq)
70 struct mlx5_wq_cyc *wq = &sq->wq;
71 struct mlx5e_tx_wqe *wqe;
72 u16 pi = mlx5_wq_cyc_ctr2ix(wq, sq->pc - 1); /* last pi */
74 wqe = mlx5_wq_cyc_get_wqe(wq, pi);
76 mlx5e_notify_hw(wq, sq->pc, sq->uar_map, &wqe->ctrl);