include/net/tso.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 #ifndef _TSO_H
0003 #define _TSO_H
0004
0005 #include <net/ip.h>
0006
0007 #define TSO_HEADER_SIZE     256
0008
0009 struct tso_t {
0010     int next_frag_idx;
0011     int size;
0012     void    *data;
0013     u16 ip_id;
0014     u8  tlen; /* transport header len */
0015     bool    ipv6;
0016     u32 tcp_seq;
0017 };
0018
0019 int tso_count_descs(const struct sk_buff *skb);
0020 void tso_build_hdr(const struct sk_buff *skb, char *hdr, struct tso_t *tso,
0021            int size, bool is_last);
0022 void tso_build_data(const struct sk_buff *skb, struct tso_t *tso, int size);
0023 int tso_start(struct sk_buff *skb, struct tso_t *tso);
0024
0025 #endif  /* _TSO_H */