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authorzec <zec@FreeBSD.org>2010-11-22 12:32:19 +0000
committerzec <zec@FreeBSD.org>2010-11-22 12:32:19 +0000
commita5a86ab1cba969d8fd1ac51249239fa2bcd2b0e2 (patch)
treeb2cc43c00a5e3ed0c66014fffab72c4ae0984c2e
parent680e761bab7c129507894e64cf9c55aaf9d83988 (diff)
downloadFreeBSD-src-a5a86ab1cba969d8fd1ac51249239fa2bcd2b0e2.zip
FreeBSD-src-a5a86ab1cba969d8fd1ac51249239fa2bcd2b0e2.tar.gz
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
-rw-r--r--sys/netgraph/ng_eiface.c2
-rw-r--r--sys/netgraph/ng_eiface.h2
2 files changed, 3 insertions, 1 deletions
diff --git a/sys/netgraph/ng_eiface.c b/sys/netgraph/ng_eiface.c
index 348e5f2..263ffc5 100644
--- a/sys/netgraph/ng_eiface.c
+++ b/sys/netgraph/ng_eiface.c
@@ -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)
diff --git a/sys/netgraph/ng_eiface.h b/sys/netgraph/ng_eiface.h
index db07a55..6fc1c5b 100644
--- a/sys/netgraph/ng_eiface.h
+++ b/sys/netgraph/ng_eiface.h
@@ -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 */
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