1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright(c) 2019 Intel Corporation. */ 2 /* Copyright(c) 2019 Intel Corporation. */
3 3
4 #ifndef XSK_H_ 4 #ifndef XSK_H_
5 #define XSK_H_ 5 #define XSK_H_
6 6
7 /* Masks for xdp_umem_page flags. 7 /* Masks for xdp_umem_page flags.
8 * The low 12-bits of the addr will be 0 since 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. 9 * can use them for flags.
10 */ 10 */
11 #define XSK_NEXT_PG_CONTIG_SHIFT 0 11 #define XSK_NEXT_PG_CONTIG_SHIFT 0
12 #define XSK_NEXT_PG_CONTIG_MASK BIT_ULL(XSK_NE 12 #define XSK_NEXT_PG_CONTIG_MASK BIT_ULL(XSK_NEXT_PG_CONTIG_SHIFT)
13 13
14 struct xdp_ring_offset_v1 { 14 struct xdp_ring_offset_v1 {
15 __u64 producer; 15 __u64 producer;
16 __u64 consumer; 16 __u64 consumer;
17 __u64 desc; 17 __u64 desc;
18 }; 18 };
19 19
20 struct xdp_mmap_offsets_v1 { 20 struct xdp_mmap_offsets_v1 {
21 struct xdp_ring_offset_v1 rx; 21 struct xdp_ring_offset_v1 rx;
22 struct xdp_ring_offset_v1 tx; 22 struct xdp_ring_offset_v1 tx;
23 struct xdp_ring_offset_v1 fr; 23 struct xdp_ring_offset_v1 fr;
24 struct xdp_ring_offset_v1 cr; 24 struct xdp_ring_offset_v1 cr;
25 }; 25 };
26 26
27 /* Nodes are linked in the struct xdp_sock map 27 /* Nodes are linked in the struct xdp_sock map_list field, and used to
28 * track which maps a certain socket reside in 28 * track which maps a certain socket reside in.
29 */ 29 */
30 30
31 struct xsk_map_node { 31 struct xsk_map_node {
32 struct list_head node; 32 struct list_head node;
33 struct xsk_map *map; 33 struct xsk_map *map;
34 struct xdp_sock __rcu **map_entry; 34 struct xdp_sock __rcu **map_entry;
35 }; 35 };
36 36
37 static inline struct xdp_sock *xdp_sk(struct s 37 static inline struct xdp_sock *xdp_sk(struct sock *sk)
38 { 38 {
39 return (struct xdp_sock *)sk; 39 return (struct xdp_sock *)sk;
40 } 40 }
41 41
42 void xsk_map_try_sock_delete(struct xsk_map *m 42 void xsk_map_try_sock_delete(struct xsk_map *map, struct xdp_sock *xs,
43 struct xdp_sock _ 43 struct xdp_sock __rcu **map_entry);
44 void xsk_clear_pool_at_qid(struct net_device * 44 void xsk_clear_pool_at_qid(struct net_device *dev, u16 queue_id);
45 int xsk_reg_pool_at_qid(struct net_device *dev 45 int xsk_reg_pool_at_qid(struct net_device *dev, struct xsk_buff_pool *pool,
46 u16 queue_id); 46 u16 queue_id);
47 47
48 #endif /* XSK_H_ */ 48 #endif /* XSK_H_ */
49 49
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