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authorJesper Dangaard Brouer <brouer@redhat.com>2018-05-31 11:59:47 +0300
committerAlexei Starovoitov <ast@kernel.org>2018-06-03 18:11:34 +0300
commit42b33468987bac0dd95c30f14820c7abac04a153 (patch)
treee15d264d864bf9da0b438a0c6db4b2181eab3c4b /include/net/xdp.h
parent69b450789136f70005f8d36315d875158ea430cf (diff)
downloadlinux-42b33468987bac0dd95c30f14820c7abac04a153.tar.xz
xdp: add flags argument to ndo_xdp_xmit API
This patch only change the API and reject any use of flags. This is an intermediate step that allows us to implement the flush flag operation later, for each individual driver in a separate patch. The plan is to implement flush operation via XDP_XMIT_FLUSH flag and then remove XDP_XMIT_FLAGS_NONE when done. Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Acked-by: Song Liu <songliubraving@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'include/net/xdp.h')
-rw-r--r--include/net/xdp.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/net/xdp.h b/include/net/xdp.h
index 7ad779237ae8..0c45f0f943ed 100644
--- a/include/net/xdp.h
+++ b/include/net/xdp.h
@@ -40,6 +40,11 @@ enum xdp_mem_type {
MEM_TYPE_MAX,
};
+/* XDP flags for ndo_xdp_xmit */
+#define XDP_XMIT_FLAGS_NONE 0U
+#define XDP_XMIT_FLUSH (1U << 0) /* doorbell signal consumer */
+#define XDP_XMIT_FLAGS_MASK XDP_XMIT_FLUSH
+
struct xdp_mem_info {
u32 type; /* enum xdp_mem_type, but known size type */
u32 id;