| 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 | |
| 12 | static 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 | |
| 18 | static 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 | |
| 23 | static 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 | |
| 28 | void nfp_net_xsk_rx_unstash(struct nfp_net_xsk_rx_buf *rxbuf); |
| 29 | void nfp_net_xsk_rx_free(struct nfp_net_xsk_rx_buf *rxbuf); |
| 30 | void nfp_net_xsk_rx_drop(struct nfp_net_r_vector *r_vec, |
| 31 | struct nfp_net_xsk_rx_buf *xrxbuf); |
| 32 | int nfp_net_xsk_setup_pool(struct net_device *netdev, struct xsk_buff_pool *pool, |
| 33 | u16 queue_id); |
| 34 | |
| 35 | void nfp_net_xsk_rx_bufs_free(struct nfp_net_rx_ring *rx_ring); |
| 36 | |
| 37 | void nfp_net_xsk_rx_ring_fill_freelist(struct nfp_net_rx_ring *rx_ring); |
| 38 | |
| 39 | int nfp_net_xsk_wakeup(struct net_device *netdev, u32 queue_id, u32 flags); |
| 40 | |
| 41 | #endif /* _NFP_XSK_H_ */ |
| 42 |