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[src/trunk]: src/sys/dev/pci There is problem with 82576 chips (and probably ...
details: https://anonhg.NetBSD.org/src/rev/190ab6b9736d
branches: trunk
changeset: 771686:190ab6b9736d
user: bouyer <bouyer%NetBSD.org@localhost>
date: Mon Nov 28 18:21:46 2011 +0000
description:
There is problem with 82576 chips (and probably 82575 too) with hardware vlan
tagging: some packets are sent untagged on the wire.
Follow OpenBSD and disable hardware vlan tagging for these chips
(I couldn't find a hint in other open-source drivers at what could be
wrong ...)
diffstat:
sys/dev/pci/if_wm.c | 8 +++++---
1 files changed, 5 insertions(+), 3 deletions(-)
diffs (29 lines):
diff -r 4fdbb716f358 -r 190ab6b9736d sys/dev/pci/if_wm.c
--- a/sys/dev/pci/if_wm.c Mon Nov 28 16:22:14 2011 +0000
+++ b/sys/dev/pci/if_wm.c Mon Nov 28 18:21:46 2011 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: if_wm.c,v 1.224 2011/11/19 22:51:23 tls Exp $ */
+/* $NetBSD: if_wm.c,v 1.225 2011/11/28 18:21:46 bouyer Exp $ */
/*
* Copyright (c) 2001, 2002, 2003, 2004 Wasabi Systems, Inc.
@@ -76,7 +76,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_wm.c,v 1.224 2011/11/19 22:51:23 tls Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_wm.c,v 1.225 2011/11/28 18:21:46 bouyer Exp $");
#include "rnd.h"
@@ -1911,7 +1911,9 @@
/*
* If we're a i82543 or greater, we can support VLANs.
*/
- if (sc->sc_type >= WM_T_82543)
+ if (sc->sc_type == WM_T_82575 || sc->sc_type == WM_T_82576)
+ sc->sc_ethercom.ec_capabilities |= ETHERCAP_VLAN_MTU;
+ else if (sc->sc_type >= WM_T_82543)
sc->sc_ethercom.ec_capabilities |=
ETHERCAP_VLAN_MTU | ETHERCAP_VLAN_HWTAGGING;
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