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linux-sg2042/include/net/tso.h

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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 */