Author: ken
Date: Fri May 21 04:48:40 2010
New Revision: 208368
URL: http://svn.freebsd.org/changeset/base/208368
Log:
MFC r206844:
Don't clear other flags (e.g. CSUM_TCP) when setting CSUM_TSO. This was
causing TSO to break for the Xen netfront driver.
Reviewed by: gibbs, rwatson
Modified:
stable/7/sys/netinet/tcp_output.c
Directory Properties:
stable/7/sys/ (props changed)
stable/7/sys/cddl/contrib/opensolaris/ (props changed)
stable/7/sys/contrib/dev/acpica/ (props changed)
stable/7/sys/contrib/pf/ (props changed)
Modified: stable/7/sys/netinet/tcp_output.c
==============================================================================
--- stable/7/sys/netinet/tcp_output.c Fri May 21 04:47:22 2010
(r208367)
+++ stable/7/sys/netinet/tcp_output.c Fri May 21 04:48:40 2010
(r208368)
@@ -995,7 +995,7 @@ send:
* XXX: Fixme: This is currently not the case for IPv6.
*/
if (tso) {
- m->m_pkthdr.csum_flags = CSUM_TSO;
+ m->m_pkthdr.csum_flags |= CSUM_TSO;
m->m_pkthdr.tso_segsz = tp->t_maxopd - optlen;
}
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