xdp: export the DEV_MAP_BULK_SIZE macro

Export the DEV_MAP_BULK_SIZE macro to the header file so that drivers
can directly use it as the maximum number of xdp_frames received in the
.ndo_xdp_xmit() callback.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/xdp.h b/include/net/xdp.h
index 40c6d33..3cc6d5d 100644 (file)
--- a/include/net/xdp.h
+++ b/include/net/xdp.h
@@ -181,4 +181,6 @@ bool xdp_attachment_flags_ok(struct xdp_attachment_info *info,
 void xdp_attachment_setup(struct xdp_attachment_info *info,
                          struct netdev_bpf *bpf);
 
+#define DEV_MAP_BULK_SIZE 16
+
 #endif /* __LINUX_NET_XDP_H__ */

diff --git a/kernel/bpf/devmap.c b/kernel/bpf/devmap.c
index 58bdca5..a51d9fb 100644 (file)
--- a/kernel/bpf/devmap.c
+++ b/kernel/bpf/devmap.c
@@ -52,7 +52,6 @@
 #define DEV_CREATE_FLAG_MASK \
        (BPF_F_NUMA_NODE | BPF_F_RDONLY | BPF_F_WRONLY)
 
-#define DEV_MAP_BULK_SIZE 16
 struct xdp_dev_bulk_queue {
        struct xdp_frame *q[DEV_MAP_BULK_SIZE];
        struct list_head flush_node;