svn commit: r206844 - head/sys/netinet
Kenneth D. Merry
ken at FreeBSD.org
Mon Apr 19 15:15:36 UTC 2010
Author: ken
Date: Mon Apr 19 15:15:36 2010
New Revision: 206844
URL: http://svn.freebsd.org/changeset/base/206844
Log:
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
MFC after: 7 days
Modified:
head/sys/netinet/tcp_output.c
Modified: head/sys/netinet/tcp_output.c
==============================================================================
--- head/sys/netinet/tcp_output.c Mon Apr 19 15:11:45 2010 (r206843)
+++ head/sys/netinet/tcp_output.c Mon Apr 19 15:15:36 2010 (r206844)
@@ -1048,7 +1048,7 @@ 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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