| xj | b04a402 | 2021-11-25 15:01:52 +0800 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | /* XDP user-space packet buffer |
| 3 | * Copyright(c) 2018 Intel Corporation. |
| 4 | */ |
| 5 | |
| 6 | #ifndef XDP_UMEM_H_ |
| 7 | #define XDP_UMEM_H_ |
| 8 | |
| 9 | #include <net/xdp_sock.h> |
| 10 | |
| 11 | static inline char *xdp_umem_get_data(struct xdp_umem *umem, u64 addr) |
| 12 | { |
| 13 | return umem->pages[addr >> PAGE_SHIFT].addr + (addr & (PAGE_SIZE - 1)); |
| 14 | } |
| 15 | |
| 16 | static inline dma_addr_t xdp_umem_get_dma(struct xdp_umem *umem, u64 addr) |
| 17 | { |
| 18 | return umem->pages[addr >> PAGE_SHIFT].dma + (addr & (PAGE_SIZE - 1)); |
| 19 | } |
| 20 | |
| 21 | int xdp_umem_assign_dev(struct xdp_umem *umem, struct net_device *dev, |
| 22 | u32 queue_id, u16 flags); |
| 23 | bool xdp_umem_validate_queues(struct xdp_umem *umem); |
| 24 | void xdp_get_umem(struct xdp_umem *umem); |
| 25 | void xdp_put_umem(struct xdp_umem *umem); |
| 26 | void xdp_add_sk_umem(struct xdp_umem *umem, struct xdp_sock *xs); |
| 27 | void xdp_del_sk_umem(struct xdp_umem *umem, struct xdp_sock *xs); |
| 28 | struct xdp_umem *xdp_umem_create(struct xdp_umem_reg *mr); |
| 29 | |
| 30 | #endif /* XDP_UMEM_H_ */ |