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| author | jmg <jmg@FreeBSD.org> | 2005-03-17 19:34:57 +0000 |
|---|---|---|
| committer | jmg <jmg@FreeBSD.org> | 2005-03-17 19:34:57 +0000 |
| commit | 19da85af4a083ce6f05e67a3b9740ca3149f21c9 (patch) | |
| tree | 82aef6788a453aea9f3b1916ad69603245947fb3 /sys/sys/mbuf.h | |
| parent | 755ffaa47d613fc8fe32776a907f4d8e7a8c9c4d (diff) | |
| download | FreeBSD-src-19da85af4a083ce6f05e67a3b9740ca3149f21c9.zip FreeBSD-src-19da85af4a083ce6f05e67a3b9740ca3149f21c9.tar.gz | |
add m_copyup function.. This can be used to help make our ip stack less
alignment restrictive, and help performance on some ethernet cards which
currently copy the entire packet a couple bytes to get the packet aligned
properly...
Wordsmithing by: dwhite
Obtained from: NetBSD (code only)
I'll clean it up later: rwatson
Diffstat (limited to 'sys/sys/mbuf.h')
| -rw-r--r-- | sys/sys/mbuf.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/sys/mbuf.h b/sys/sys/mbuf.h index 0703916..a3d2a61 100644 --- a/sys/sys/mbuf.h +++ b/sys/sys/mbuf.h @@ -564,6 +564,7 @@ void m_copydata(const struct mbuf *, int, int, caddr_t); struct mbuf *m_copym(struct mbuf *, int, int, int); struct mbuf *m_copypacket(struct mbuf *, int); void m_copy_pkthdr(struct mbuf *, struct mbuf *); +struct mbuf *m_copyup(struct mbuf *n, int len, int dstoff); struct mbuf *m_defrag(struct mbuf *, int); struct mbuf *m_devget(char *, int, int, struct ifnet *, void (*)(char *, caddr_t, u_int)); |
