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MFp4 bz_ipv6_fast:

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Simple yet effective change enabling checksum "offload" on loopback
  for IPv6 to avoid expensive computations.

  Sponsored by:	The FreeBSD Foundation
  Sponsored by:	iXsystems

Reviewed by:	gnn (as part of the whole)
MFC After:	3 days
This commit is contained in:
Bjoern A. Zeeb 2012-05-25 02:21:17 +00:00
parent 5aa624a803
commit d4b93a67d9
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=235960
1 changed files with 1 additions and 1 deletions
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2
sys/net/if_loop.c
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@ -247,12 +247,12 @@ looutput(struct ifnet *ifp, struct mbuf *m, struct sockaddr *dst,
#if 1 /* XXX */
switch (dst->sa_family) {
case AF_INET:
case AF_INET6:
if (ifp->if_capenable & IFCAP_RXCSUM) {
m->m_pkthdr.csum_data = 0xffff;
m->m_pkthdr.csum_flags = LO_CSUM_SET;
}
m->m_pkthdr.csum_flags &= ~LO_CSUM_FEATURES;
case AF_INET6:
case AF_IPX:
case AF_APPLETALK:
break;