summaryrefslogtreecommitdiff
path: root/include/net/tso.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/net/tso.h')
-rw-r--r--include/net/tso.h8
1 files changed, 7 insertions, 1 deletions
diff --git a/include/net/tso.h b/include/net/tso.h
index 62c98a9c60f1..e7e157ae0526 100644
--- a/include/net/tso.h
+++ b/include/net/tso.h
@@ -2,6 +2,7 @@
#ifndef _TSO_H
#define _TSO_H
+#include <linux/skbuff.h>
#include <net/ip.h>
#define TSO_HEADER_SIZE 256
@@ -16,7 +17,12 @@ struct tso_t {
u32 tcp_seq;
};
-int tso_count_descs(const struct sk_buff *skb);
+/* Calculate the worst case buffer count */
+static inline int tso_count_descs(const struct sk_buff *skb)
+{
+ return skb_shinfo(skb)->gso_segs * 2 + skb_shinfo(skb)->nr_frags;
+}
+
void tso_build_hdr(const struct sk_buff *skb, char *hdr, struct tso_t *tso,
int size, bool is_last);
void tso_build_data(const struct sk_buff *skb, struct tso_t *tso, int size);