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