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There is problem with 82576 chips (and probably 82575 too) with hardware vlan

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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 ...)
This commit is contained in:
bouyer 2011-11-28 18:21:46 +00:00
parent bb4b748000
commit 8f2dc14263
1 changed files with 5 additions and 3 deletions
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8
sys/dev/pci/if_wm.c
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@ -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 @@ wm_attach(device_t parent, device_t self, void *aux)
/*
* 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;