svn commit: r215673 - head/sys/netgraph

[Marko Zec]

Author: zec
Date: Mon Nov 22 12:32:19 2010
New Revision: 215673
URL: http://svn.freebsd.org/changeset/base/215673

Log:
  Allow for MTU sizes of up to ETHER_MAX_LEN_JUMBO (i.e. 9018) bytes to be
  configured on ng_eiface ifnets.  The default MTU remains unchanged at
  1500 bytes.
  
  Mark ng_eiface ifnets as IFCAP_VLAN_MTU capable, so that the associated
  vlan(4) ifnets may use full-sized Ethernet MTUs (1500 bytes).
  
  MFC after:	3 days

Modified:
  head/sys/netgraph/ng_eiface.c
  head/sys/netgraph/ng_eiface.h

Modified: head/sys/netgraph/ng_eiface.c
==============================================================================
--- head/sys/netgraph/ng_eiface.c	Mon Nov 22 11:24:11 2010	(r215672)
+++ head/sys/netgraph/ng_eiface.c	Mon Nov 22 12:32:19 2010	(r215673)
@@ -371,6 +371,8 @@ ng_eiface_constructor(node_p node)
 	ifp->if_ioctl = ng_eiface_ioctl;
 	ifp->if_snd.ifq_maxlen = ifqmaxlen;
 	ifp->if_flags = (IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST);
+	ifp->if_capabilities = IFCAP_VLAN_MTU | IFCAP_JUMBO_MTU;
+	ifp->if_capenable = IFCAP_VLAN_MTU | IFCAP_JUMBO_MTU;
 
 	/* Give this node the same name as the interface (if possible) */
 	if (ng_name_node(node, ifp->if_xname) != 0)

Modified: head/sys/netgraph/ng_eiface.h
==============================================================================
--- head/sys/netgraph/ng_eiface.h	Mon Nov 22 11:24:11 2010	(r215672)
+++ head/sys/netgraph/ng_eiface.h	Mon Nov 22 12:32:19 2010	(r215673)
@@ -46,7 +46,7 @@
 
 /* MTU bounds */
 #define NG_EIFACE_MTU_MIN		72
-#define NG_EIFACE_MTU_MAX		2312
+#define NG_EIFACE_MTU_MAX		ETHER_MAX_LEN_JUMBO
 #define NG_EIFACE_MTU_DEFAULT		1500
 
 /* Netgraph commands */