diff options
Diffstat (limited to 'net/xdp/xdp_umem.h')
-rw-r--r-- | net/xdp/xdp_umem.h | 45 |
1 files changed, 9 insertions, 36 deletions
diff --git a/net/xdp/xdp_umem.h b/net/xdp/xdp_umem.h index 0881cf456230..f11560334f88 100644 --- a/net/xdp/xdp_umem.h +++ b/net/xdp/xdp_umem.h @@ -6,52 +6,25 @@ #ifndef XDP_UMEM_H_ #define XDP_UMEM_H_ -#include <linux/mm.h> -#include <linux/if_xdp.h> -#include <linux/workqueue.h> +#include <net/xdp_sock.h> -#include "xsk_queue.h" -#include "xdp_umem_props.h" - -struct xdp_umem { - struct xsk_queue *fq; - struct xsk_queue *cq; - struct page **pgs; - struct xdp_umem_props props; - u32 npgs; - u32 frame_headroom; - u32 nfpp_mask; - u32 nfpplog2; - u32 frame_size_log2; - struct user_struct *user; - struct pid *pid; - unsigned long address; - size_t size; - refcount_t users; - struct work_struct work; -}; - -static inline char *xdp_umem_get_data(struct xdp_umem *umem, u32 idx) +static inline char *xdp_umem_get_data(struct xdp_umem *umem, u64 addr) { - u64 pg, off; - char *data; - - pg = idx >> umem->nfpplog2; - off = (idx & umem->nfpp_mask) << umem->frame_size_log2; - - data = page_address(umem->pgs[pg]); - return data + off; + return umem->pages[addr >> PAGE_SHIFT].addr + (addr & (PAGE_SIZE - 1)); } -static inline char *xdp_umem_get_data_with_headroom(struct xdp_umem *umem, - u32 idx) +static inline dma_addr_t xdp_umem_get_dma(struct xdp_umem *umem, u64 addr) { - return xdp_umem_get_data(umem, idx) + umem->frame_headroom; + 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_ */ |