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Date: Fri, 8 Jul 2005 14:10:14 GMT
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To: freebsd-bugs@FreeBSD.org
From: "Yuriy N. Shkandybin" <jura@networks.ru>
Cc: 
Subject: Re: kern/83011: nge vlans broken
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The following reply was made to PR kern/83011; it has been noted by GNATS.

From: "Yuriy N. Shkandybin" <jura@networks.ru>
To: <bug-followup@FreeBSD.org>,
	"Yuriy N. Shkandybin" <jura@networks.ru>
Cc: <freebsd-net@freebsd.org>
Subject: Re: kern/83011: nge vlans broken
Date: Fri, 8 Jul 2005 17:58:58 +0400

 I've invistigated that m_head mbuf doesn't have M_VLANTAG when performing 
 VLAN_OUTPUT()
 
 next diff for /usr/src/sys/net/if_vlan_var.h make it work:
 --- 1.h Fri Jul  8 17:34:31 2005
 +++ if_vlan_var.h       Fri Jul  8 17:35:53 2005
 @@ -111,7 +111,7 @@
  } while (0)
 
  #define        VLAN_OUTPUT_TAG(_ifp, _m)                               \
 -       ((_m)->m_flags & M_VLANTAG ?                            \
 +       ((_ifp)->if_nvlans != 0 ?                               \
                 m_tag_locate((_m), MTAG_VLAN, MTAG_VLAN_TAG, NULL) : NULL)
  #define        VLAN_TAG_VALUE(_mt)     (*(u_int *)((_mt)+1))
  #endif /* _KERNEL */
 
 
 Actually this is partial backout ru@ commit
 http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/net/if_vlan_var.h.diff?r1=1.20&r2=1.21&f=h
 
 Since it's not adressed to if_nge itself, so it's possible same problems for 
 another interfaces.
 
 Jura