2023-08-08 16:36:12

by 黄杰

[permalink] [raw]
Subject: [RFC v3 Optimizing veth xsk performance 7/9] sk_buff: add destructor_arg_xsk_pool for zero copy

this member is add for dummy dev to suppot zero copy

Signed-off-by: Albert Huang <[email protected]>
---
include/linux/skbuff.h | 2 ++
1 file changed, 2 insertions(+)

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 16a49ba534e4..db999056022e 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -592,6 +592,8 @@ struct skb_shared_info {
/* Intermediate layers must ensure that destructor_arg
* remains valid until skb destructor */
void * destructor_arg;
+ /* just for dummy device xsk zero copy */
+ void *destructor_arg_xsk_pool;

/* must be last field, see pskb_expand_head() */
skb_frag_t frags[MAX_SKB_FRAGS];
--
2.20.1