Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Tariq Toukan | 384 | 84.40% | 7 | 87.50% |
Saeed Mahameed | 71 | 15.60% | 1 | 12.50% |
Total | 455 | 8 |
/* * Copyright (c) 2018, 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 __MLX5_EN_XDP_H__ #define __MLX5_EN_XDP_H__ #include "en.h" #define MLX5E_XDP_MAX_MTU ((int)(PAGE_SIZE - \ MLX5_SKB_FRAG_SZ(XDP_PACKET_HEADROOM))) #define MLX5E_XDP_MIN_INLINE (ETH_HLEN + VLAN_HLEN) #define MLX5E_XDP_TX_EMPTY_DS_COUNT \ (sizeof(struct mlx5e_tx_wqe) / MLX5_SEND_WQE_DS) #define MLX5E_XDP_TX_DS_COUNT (MLX5E_XDP_TX_EMPTY_DS_COUNT + 1 /* SG DS */) bool mlx5e_xdp_handle(struct mlx5e_rq *rq, struct mlx5e_dma_info *di, void *va, u16 *rx_headroom, u32 *len); bool mlx5e_poll_xdpsq_cq(struct mlx5e_cq *cq, struct mlx5e_rq *rq); void mlx5e_free_xdpsq_descs(struct mlx5e_xdpsq *sq, struct mlx5e_rq *rq); void mlx5e_set_xmit_fp(struct mlx5e_xdpsq *sq, bool is_mpw); void mlx5e_xdp_rx_poll_complete(struct mlx5e_rq *rq); int mlx5e_xdp_xmit(struct net_device *dev, int n, struct xdp_frame **frames, u32 flags); static inline void mlx5e_xdp_tx_enable(struct mlx5e_priv *priv) { set_bit(MLX5E_STATE_XDP_TX_ENABLED, &priv->state); } static inline void mlx5e_xdp_tx_disable(struct mlx5e_priv *priv) { clear_bit(MLX5E_STATE_XDP_TX_ENABLED, &priv->state); /* let other device's napi(s) see our new state */ synchronize_rcu(); } static inline bool mlx5e_xdp_tx_is_enabled(struct mlx5e_priv *priv) { return test_bit(MLX5E_STATE_XDP_TX_ENABLED, &priv->state); } static inline void mlx5e_xmit_xdp_doorbell(struct mlx5e_xdpsq *sq) { if (sq->doorbell_cseg) { mlx5e_notify_hw(&sq->wq, sq->pc, sq->uar_map, sq->doorbell_cseg); sq->doorbell_cseg = NULL; } } static inline void mlx5e_xdp_mpwqe_add_dseg(struct mlx5e_xdpsq *sq, dma_addr_t dma_addr, u16 dma_len) { struct mlx5e_xdp_mpwqe *session = &sq->mpwqe; struct mlx5_wqe_data_seg *dseg = (struct mlx5_wqe_data_seg *)session->wqe + session->ds_count++; dseg->addr = cpu_to_be64(dma_addr); dseg->byte_count = cpu_to_be32(dma_len); dseg->lkey = sq->mkey_be; } static inline void mlx5e_xdpsq_fetch_wqe(struct mlx5e_xdpsq *sq, struct mlx5e_tx_wqe **wqe) { struct mlx5_wq_cyc *wq = &sq->wq; u16 pi = mlx5_wq_cyc_ctr2ix(wq, sq->pc); *wqe = mlx5_wq_cyc_get_wqe(wq, pi); memset(*wqe, 0, sizeof(**wqe)); } static inline void mlx5e_xdpi_fifo_push(struct mlx5e_xdp_info_fifo *fifo, struct mlx5e_xdp_info *xi) { u32 i = (*fifo->pc)++ & fifo->mask; fifo->xi[i] = *xi; } static inline struct mlx5e_xdp_info mlx5e_xdpi_fifo_pop(struct mlx5e_xdp_info_fifo *fifo) { return fifo->xi[(*fifo->cc)++ & fifo->mask]; } #endif
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