diff options
Diffstat (limited to 'net/xdp/xdp_umem.h')
| -rw-r--r-- | net/xdp/xdp_umem.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/net/xdp/xdp_umem.h b/net/xdp/xdp_umem.h new file mode 100644 index 000000000..f11560334 --- /dev/null +++ b/net/xdp/xdp_umem.h @@ -0,0 +1,30 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* XDP user-space packet buffer + * Copyright(c) 2018 Intel Corporation. + */ + +#ifndef XDP_UMEM_H_ +#define XDP_UMEM_H_ + +#include <net/xdp_sock.h> + +static inline char *xdp_umem_get_data(struct xdp_umem *umem, u64 addr) +{ + return umem->pages[addr >> PAGE_SHIFT].addr + (addr & (PAGE_SIZE - 1)); +} + +static inline dma_addr_t xdp_umem_get_dma(struct xdp_umem *umem, u64 addr) +{ + return umem->pages[addr >> PAGE_SHIFT].dma + (addr & (PAGE_SIZE - 1)); +} + +int xdp_umem_assign_dev(struct xdp_umem *umem, struct net_device *dev, + u32 queue_id, u16 flags); +bool xdp_umem_validate_queues(struct xdp_umem *umem); +void xdp_get_umem(struct xdp_umem *umem); +void xdp_put_umem(struct xdp_umem *umem); +void xdp_add_sk_umem(struct xdp_umem *umem, struct xdp_sock *xs); +void xdp_del_sk_umem(struct xdp_umem *umem, struct xdp_sock *xs); +struct xdp_umem *xdp_umem_create(struct xdp_umem_reg *mr); + +#endif /* XDP_UMEM_H_ */ |