xsk.h (1215B)
1/* SPDX-License-Identifier: GPL-2.0 */ 2/* Copyright(c) 2019 Intel Corporation. */ 3 4#ifndef XSK_H_ 5#define XSK_H_ 6 7/* Masks for xdp_umem_page flags. 8 * The low 12-bits of the addr will be 0 since this is the page address, so we 9 * can use them for flags. 10 */ 11#define XSK_NEXT_PG_CONTIG_SHIFT 0 12#define XSK_NEXT_PG_CONTIG_MASK BIT_ULL(XSK_NEXT_PG_CONTIG_SHIFT) 13 14struct xdp_ring_offset_v1 { 15 __u64 producer; 16 __u64 consumer; 17 __u64 desc; 18}; 19 20struct xdp_mmap_offsets_v1 { 21 struct xdp_ring_offset_v1 rx; 22 struct xdp_ring_offset_v1 tx; 23 struct xdp_ring_offset_v1 fr; 24 struct xdp_ring_offset_v1 cr; 25}; 26 27/* Nodes are linked in the struct xdp_sock map_list field, and used to 28 * track which maps a certain socket reside in. 29 */ 30 31struct xsk_map_node { 32 struct list_head node; 33 struct xsk_map *map; 34 struct xdp_sock __rcu **map_entry; 35}; 36 37static inline struct xdp_sock *xdp_sk(struct sock *sk) 38{ 39 return (struct xdp_sock *)sk; 40} 41 42void xsk_map_try_sock_delete(struct xsk_map *map, struct xdp_sock *xs, 43 struct xdp_sock __rcu **map_entry); 44void xsk_clear_pool_at_qid(struct net_device *dev, u16 queue_id); 45int xsk_reg_pool_at_qid(struct net_device *dev, struct xsk_buff_pool *pool, 46 u16 queue_id); 47 48#endif /* XSK_H_ */