1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* XDP user-space packet buffer
3 * Copyright(c) 2018 Intel Corporation.
9 #include <net/xdp_sock.h>
11 static inline char *xdp_umem_get_data(struct xdp_umem *umem, u64 addr)
13 return umem->pages[addr >> PAGE_SHIFT].addr + (addr & (PAGE_SIZE - 1));
16 static inline dma_addr_t xdp_umem_get_dma(struct xdp_umem *umem, u64 addr)
18 return umem->pages[addr >> PAGE_SHIFT].dma + (addr & (PAGE_SIZE - 1));
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);
30 #endif /* XDP_UMEM_H_ */