42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
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/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
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/* Copyright (C) 2018 Netronome Systems, Inc */
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/* Copyright (C) 2021 Corigine, Inc */
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#ifndef _NFP_XSK_H_
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#define _NFP_XSK_H_
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#include <net/xdp_sock_drv.h>
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#define NFP_NET_XSK_TX_BATCH 16 /* XSK TX transmission batch size. */
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static inline bool nfp_net_has_xsk_pool_slow(struct nfp_net_dp *dp,
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unsigned int qid)
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{
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return dp->xdp_prog && dp->xsk_pools[qid];
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}
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static inline int nfp_net_rx_space(struct nfp_net_rx_ring *rx_ring)
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{
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return rx_ring->cnt - rx_ring->wr_p + rx_ring->rd_p - 1;
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}
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static inline int nfp_net_tx_space(struct nfp_net_tx_ring *tx_ring)
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{
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return tx_ring->cnt - tx_ring->wr_p + tx_ring->rd_p - 1;
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}
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void nfp_net_xsk_rx_unstash(struct nfp_net_xsk_rx_buf *rxbuf);
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void nfp_net_xsk_rx_free(struct nfp_net_xsk_rx_buf *rxbuf);
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void nfp_net_xsk_rx_drop(struct nfp_net_r_vector *r_vec,
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struct nfp_net_xsk_rx_buf *xrxbuf);
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int nfp_net_xsk_setup_pool(struct net_device *netdev, struct xsk_buff_pool *pool,
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u16 queue_id);
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void nfp_net_xsk_rx_bufs_free(struct nfp_net_rx_ring *rx_ring);
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void nfp_net_xsk_rx_ring_fill_freelist(struct nfp_net_rx_ring *rx_ring);
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int nfp_net_xsk_wakeup(struct net_device *netdev, u32 queue_id, u32 flags);
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#endif /* _NFP_XSK_H_ */
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