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1/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */2/* Copyright (C) 2018 Netronome Systems, Inc */3/* Copyright (C) 2021 Corigine, Inc */4 5#ifndef _NFP_XSK_H_6#define _NFP_XSK_H_7 8#include <net/xdp_sock_drv.h>9 10#define NFP_NET_XSK_TX_BATCH 16 /* XSK TX transmission batch size. */11 12static inline bool nfp_net_has_xsk_pool_slow(struct nfp_net_dp *dp,13 unsigned int qid)14{15 return dp->xdp_prog && dp->xsk_pools[qid];16}17 18static inline int nfp_net_rx_space(struct nfp_net_rx_ring *rx_ring)19{20 return rx_ring->cnt - rx_ring->wr_p + rx_ring->rd_p - 1;21}22 23static inline int nfp_net_tx_space(struct nfp_net_tx_ring *tx_ring)24{25 return tx_ring->cnt - tx_ring->wr_p + tx_ring->rd_p - 1;26}27 28void nfp_net_xsk_rx_unstash(struct nfp_net_xsk_rx_buf *rxbuf);29void nfp_net_xsk_rx_free(struct nfp_net_xsk_rx_buf *rxbuf);30void nfp_net_xsk_rx_drop(struct nfp_net_r_vector *r_vec,31 struct nfp_net_xsk_rx_buf *xrxbuf);32int nfp_net_xsk_setup_pool(struct net_device *netdev, struct xsk_buff_pool *pool,33 u16 queue_id);34 35void nfp_net_xsk_rx_bufs_free(struct nfp_net_rx_ring *rx_ring);36 37void nfp_net_xsk_rx_ring_fill_freelist(struct nfp_net_rx_ring *rx_ring);38 39int nfp_net_xsk_wakeup(struct net_device *netdev, u32 queue_id, u32 flags);40 41#endif /* _NFP_XSK_H_ */42