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xsk: add zero-copy support for Rx

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Extend the xsk_rcv to support the new MEM_TYPE_ZERO_COPY memory, and
wireup ndo_bpf call in bind.

Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Björn Töpel
2018-06-04 14:05:55 +02:00
committed by Daniel Borkmann
parent 02b55e5657
commit 173d3adb6f
5 changed files with 166 additions and 22 deletions
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3
net/xdp/xdp_umem.h
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@@ -13,6 +13,9 @@ static inline char *xdp_umem_get_data(struct xdp_umem *umem, u64 addr)
return umem->pages[addr >> PAGE_SHIFT].addr + (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);