Module Name: src
Committed By: jdolecek
Date: Tue Jan 9 18:39:53 UTC 2024
Modified Files:
src/sys/arch/xen/xen: if_xennet_xenbus.c
Log Message:
disable TX checksum optimization, it's causing ARP lossage in some
configurations using Linux dom0
PR port-xen/57743 by Brian Marcotte, thanks for the patch
To generate a diff of this commit:
cvs rdiff -u -r1.129 -r1.130 src/sys/arch/xen/xen/if_xennet_xenbus.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/xen/xen/if_xennet_xenbus.c
diff -u src/sys/arch/xen/xen/if_xennet_xenbus.c:1.129 src/sys/arch/xen/xen/if_xennet_xenbus.c:1.130
--- src/sys/arch/xen/xen/if_xennet_xenbus.c:1.129 Sat Feb 25 00:32:49 2023
+++ src/sys/arch/xen/xen/if_xennet_xenbus.c Tue Jan 9 18:39:53 2024
@@ -1,4 +1,4 @@
-/* $NetBSD: if_xennet_xenbus.c,v 1.129 2023/02/25 00:32:49 riastradh Exp $ */
+/* $NetBSD: if_xennet_xenbus.c,v 1.130 2024/01/09 18:39:53 jdolecek Exp $ */
/*
* Copyright (c) 2006 Manuel Bouyer.
@@ -81,7 +81,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_xennet_xenbus.c,v 1.129 2023/02/25 00:32:49 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_xennet_xenbus.c,v 1.130 2024/01/09 18:39:53 jdolecek Exp $");
#include "opt_xen.h"
#include "opt_nfs_boot.h"
@@ -1122,7 +1122,13 @@ xennet_submit_tx_request(struct xennet_x
if (m->m_pkthdr.csum_flags & XN_M_CSUM_SUPPORTED) {
txreq->flags |= NETTXF_csum_blank;
} else {
+#if 0
+ /*
+ * XXX Checksum optimization disabled
+ * to avoid port-xen/57743.
+ */
txreq->flags |= NETTXF_data_validated;
+#endif
}
}
if (multiseg && i < lastseg)
