Introduce xdp_frags_size field in skb_shared_info data structure
to store xdp_buff/xdp_frame frame paged size (xdp_frags_size will
be used in xdp multi-buff support). In order to not increase
skb_shared_info size we will use a hole due to skb_shared_info
alignment.
Acked-by: John Fastabend <john.fastabend@xxxxxxxxx>
Acked-by: Jesper Dangaard Brouer <brouer@xxxxxxxxxx>
Signed-off-by: Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
---
include/linux/skbuff.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 686a666d073d..2eecb6931975 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -535,6 +535,7 @@ struct skb_shared_info {
* Warning : all fields before dataref are cleared in __alloc_skb()
*/
atomic_t dataref;
+ unsigned int xdp_frags_size;
/* Intermediate layers must ensure that destructor_arg
* remains valid until skb destructor */
--
2.31.1
