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authorMagnus Karlsson <magnus.karlsson@intel.com>2018-06-04 14:05:57 +0200
committerDaniel Borkmann <daniel@iogearbox.net>2018-06-05 15:48:34 +0200
commitac98d8aab61baf785eb8f099b36daf34fc76a70e (patch)
treec0fa347892f50786cd516e5eb4396abf69bebb0d /net/xdp/xdp_umem.h
parente3760c7e50ac6cdf1188fec44938dd7e6e6eef61 (diff)
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.h8
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_ */