linux/include/net/tso.h

#ifndef _TSO_H
#define _TSO_H

#include <net/ip.h>

struct tso_t {
	int next_frag_idx;
	void *data;
	size_t size;
	u16 ip_id;
	bool ipv6;
	u32 tcp_seq;
};

int tso_count_descs(struct sk_buff *skb);
void tso_build_hdr(struct sk_buff *skb, char *hdr, struct tso_t *tso,
		   int size, bool is_last);
void tso_build_data(struct sk_buff *skb, struct tso_t *tso, int size);
void tso_start(struct sk_buff *skb, struct tso_t *tso);

#endif	/* _TSO_H */
net: Add a software TSO helper API Although the implementation probably needs a lot of work, this initial API allows to implement software TSO in mvneta and mv643xx_eth drivers in a not so intrusive way. Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2014-05-20 00:59:52 +08:00			`#ifndef _TSO_H`
			`#define _TSO_H`

			`#include <net/ip.h>`

			`struct tso_t {`
			`int next_frag_idx;`
			`void *data;`
			`size_t size;`
			`u16 ip_id;`
net: tso: add support for IPv6 Adding IPv6 for the TSO helper API is trivial: * Don't play with the id (which doesn't exist in IPv6) * Correctly update the payload_len (don't include the length of the IP header itself) Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2015-10-26 16:31:29 +08:00			`bool ipv6;`
net: Add a software TSO helper API Although the implementation probably needs a lot of work, this initial API allows to implement software TSO in mvneta and mv643xx_eth drivers in a not so intrusive way. Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2014-05-20 00:59:52 +08:00			`u32 tcp_seq;`
			`};`

			`int tso_count_descs(struct sk_buff *skb);`
			`void tso_build_hdr(struct sk_buff skb, char hdr, struct tso_t *tso,`
			`int size, bool is_last);`
			`void tso_build_data(struct sk_buff skb, struct tso_t tso, int size);`
			`void tso_start(struct sk_buff skb, struct tso_t tso);`

			`#endif /* _TSO_H */`