Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /* Copyright(c) 2019 Intel Corporation. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) #ifndef XSK_H_
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) #define XSK_H_
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) /* Masks for xdp_umem_page flags.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  * The low 12-bits of the addr will be 0 since this is the page address, so we
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  * can use them for flags.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #define XSK_NEXT_PG_CONTIG_SHIFT 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #define XSK_NEXT_PG_CONTIG_MASK BIT_ULL(XSK_NEXT_PG_CONTIG_SHIFT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) struct xdp_ring_offset_v1 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	__u64 producer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 	__u64 consumer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	__u64 desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) struct xdp_mmap_offsets_v1 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	struct xdp_ring_offset_v1 rx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	struct xdp_ring_offset_v1 tx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	struct xdp_ring_offset_v1 fr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	struct xdp_ring_offset_v1 cr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) /* Nodes are linked in the struct xdp_sock map_list field, and used to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)  * track which maps a certain socket reside in.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) struct xsk_map_node {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	struct list_head node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	struct xsk_map *map;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	struct xdp_sock **map_entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) static inline struct xdp_sock *xdp_sk(struct sock *sk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	return (struct xdp_sock *)sk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) void xsk_map_try_sock_delete(struct xsk_map *map, struct xdp_sock *xs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 			     struct xdp_sock **map_entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) int xsk_map_inc(struct xsk_map *map);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) void xsk_map_put(struct xsk_map *map);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) void xsk_clear_pool_at_qid(struct net_device *dev, u16 queue_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) int xsk_reg_pool_at_qid(struct net_device *dev, struct xsk_buff_pool *pool,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 			u16 queue_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #endif /* XSK_H_ */