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authorEric Dumazet <edumazet@google.com>2020-06-17 20:53:25 -0700
committerDavid S. Miller <davem@davemloft.net>2020-06-18 20:46:23 -0700
commit761b331cb6902dc0a08f786e9fa0dbd572059027 (patch)
tree687614a08e327f9600dab3466161cc792ea51cb5 /include/net
parent504b912150983a8b2499bbf9e4501336677404c9 (diff)
downloadlinux-next-761b331cb6902dc0a08f786e9fa0dbd572059027.tar.gz
net: tso: cache transport header length
Add tlen field into struct tso_t, and change tso_start() to return skb_transport_offset(skb) + tso->tlen This removes from callers the need to use tcp_hdrlen(skb) and will ease UDP segmentation offload addition. v2: calls tso_start() earlier in otx2_sq_append_tso() [Jakub] Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
-rw-r--r--include/net/tso.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/net/tso.h b/include/net/tso.h
index 32d9272ade6a..62c98a9c60f1 100644
--- a/include/net/tso.h
+++ b/include/net/tso.h
@@ -11,6 +11,7 @@ struct tso_t {
int size;
void *data;
u16 ip_id;
+ u8 tlen; /* transport header len */
bool ipv6;
u32 tcp_seq;
};
@@ -19,6 +20,6 @@ int tso_count_descs(const struct sk_buff *skb);
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);
-void tso_start(struct sk_buff *skb, struct tso_t *tso);
+int tso_start(struct sk_buff *skb, struct tso_t *tso);
#endif /* _TSO_H */