diff options
| author |   Magnus Karlsson <magnus.karlsson@intel.com> | 2018-06-04 14:05:57 +0200 |
|---|---|---|
| committer |   Daniel Borkmann <daniel@iogearbox.net> | 2018-06-05 15:48:34 +0200 |
| commit | ac98d8aab61baf785eb8f099b36daf34fc76a70e (patch) | |
| tree | c0fa347892f50786cd516e5eb4396abf69bebb0d /net/xdp/xdp_umem.h | |
| parent | net: added netdevice operation for Tx (diff) | |
| download | linux-dev-ac98d8aab61baf785eb8f099b36daf34fc76a70e.tar.xz linux-dev-ac98d8aab61baf785eb8f099b36daf34fc76a70e.zip | |
xsk: wire upp Tx zero-copy functions
Here we add the functionality required to support zero-copy Tx, and
also exposes various zero-copy related functions for the netdevs.
Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'net/xdp/xdp_umem.h')
| -rw-r--r-- | net/xdp/xdp_umem.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/net/xdp/xdp_umem.h b/net/xdp/xdp_umem.h index 674508a32a4d..f11560334f88 100644 --- a/net/xdp/xdp_umem.h +++ b/net/xdp/xdp_umem.h @@ -13,12 +13,18 @@ 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); -void xdp_umem_clear_dev(struct xdp_umem *umem); 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_ */ |