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Date: Sat, 24 May 2008 12:57:25 -0400 (EDT)
From: Pete Carah <pete@altadena.net>
Reply-To: Pete Carah <pete@altadena.net>
To: FreeBSD-gnats-submit@freebsd.org
Cc:
Subject: Allow vr interface to handle vlans
X-Send-Pr-Version: 3.113
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>Number:         123961
>Category:       kern
>Synopsis:       [vr] [patch] Allow vr interface to handle vlans
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    yongari
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          change-request
>Submitter-Id:   current-users
>Arrival-Date:   Sat May 24 17:20:05 UTC 2008
>Closed-Date:    Mon Oct 11 20:16:32 UTC 2010
>Last-Modified:  Mon Oct 11 20:16:32 UTC 2010
>Originator:     Pete Carah
>Release:        FreeBSD 6.3-RELEASE-p1 i386
>Organization:
Altadena Internet, Cerona Networks
>Environment:
System: FreeBSD office.cerona.com 6.3-RELEASE-p1 FreeBSD 6.3-RELEASE-p1 #1: Sat Feb 23 09:30:53 EST 2008 pete@ns3.altadena.net:/usr/obj/usr/src/sys/SOEKRIS55 i386
	Soekris 5500, i386 (geode lx)

Description: VR interface doesn't handle vlans; this makes it work.
	Note that this already works in linux>2.6.19, don't know about earlier
How-To-Repeat: Try configure a vlan, this works but then traffic fails later;
	Actually crashes the system under some (unknown) circumstances.

Fix:	Very simple patch enclosed
	(tested; I'm sending from the running system with lots of vlans):

=======================================================
--- sys/pci/if_vrreg.h.orig	2008-02-23 23:19:40.000000000 -0500
+++ sys/pci/if_vrreg.h	2008-02-23 23:21:46.000000000 -0500
@@ -401,7 +401,7 @@
 #define VR_TX_LIST_CNT		256
 #define VR_MIN_FRAMELEN		60
 #define VR_FRAMELEN		1536
-#define VR_RXLEN		1524
+#define VR_RXLEN		(MCLBYTES-1)
 
 struct vr_mii_frame {
 	u_int8_t		mii_stdelim;
=============================================================

>Description:
>How-To-Repeat:
>Fix:
>Release-Note:
>Audit-Trail:
Responsible-Changed-From-To: freebsd-bugs->freebsd-net 
Responsible-Changed-By: linimon 
Responsible-Changed-When: Sat May 24 19:52:05 UTC 2008 
Responsible-Changed-Why:  
Over to maintainer(s). 

http://www.freebsd.org/cgi/query-pr.cgi?pr=123961 
State-Changed-From-To: open->patched 
State-Changed-By: thompsa 
State-Changed-When: Fri Jun 20 17:47:20 UTC 2008 
State-Changed-Why:  
This has been handled by the bus_dma megaupdate to vr(4), thanks 
to Pyun. Not merged to RELENG_6 yet. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=123961 
State-Changed-From-To: patched->closed 
State-Changed-By: yongari 
State-Changed-When: Mon Oct 11 20:15:37 UTC 2010 
State-Changed-Why:  
Close, vr(4) should support VLAN oversized frame. 
If you happen to encounter the issue again please open a new PR. 


Responsible-Changed-From-To: freebsd-net->yongari 
Responsible-Changed-By: yongari 
Responsible-Changed-When: Mon Oct 11 20:15:37 UTC 2010 
Responsible-Changed-Why:  
Track. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=123961 
>Unformatted:
