diff options
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/nfp_net_xsk.h')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfp_net_xsk.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_xsk.h b/drivers/net/ethernet/netronome/nfp/nfp_net_xsk.h new file mode 100644 index 000000000000..6d281eb2fc1c --- /dev/null +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_xsk.h @@ -0,0 +1,41 @@ +/* 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_ */ |