diff options
| author | Magnus Karlsson <magnus.karlsson@intel.com> | 2020-08-28 10:26:22 +0200 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2020-08-31 21:15:04 +0200 |
| commit | 921b68692abb4fd02237b6875b2056bc59435116 (patch) | |
| tree | 80597519bc9b2ec71dc485418bc0f6a6025d234b /include/net/xdp_sock.h | |
| parent | xsk: Move addrs from buffer pool to umem (diff) | |
| download | linux-921b68692abb4fd02237b6875b2056bc59435116.tar.xz linux-921b68692abb4fd02237b6875b2056bc59435116.zip | |
xsk: Enable sharing of dma mappings
Enable the sharing of dma mappings by moving them out from the buffer
pool. Instead we put each dma mapped umem region in a list in the umem
structure. If dma has already been mapped for this umem and device, it
is not mapped again and the existing dma mappings are reused.
Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Björn Töpel <bjorn.topel@intel.com>
Link: https://lore.kernel.org/bpf/1598603189-32145-9-git-send-email-magnus.karlsson@intel.com
Diffstat (limited to 'include/net/xdp_sock.h')
| -rw-r--r-- | include/net/xdp_sock.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/xdp_sock.h b/include/net/xdp_sock.h index 126d24364b5a..282aeba0d20f 100644 --- a/include/net/xdp_sock.h +++ b/include/net/xdp_sock.h @@ -30,6 +30,7 @@ struct xdp_umem { u8 flags; int id; bool zc; + struct list_head xsk_dma_list; }; struct xsk_map { |