Copy stable/10@r272459 to releng/10.1 as part of
the 10.1-RELEASE process.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

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

Added ASCII version of the NGM_EIFACE_GET_IFNAME message, "getifname".

Whitespace and "const" changes to reduce diffs to RELENG_4.
(Gives the same object when compiled without NETGRAPH_DEBUG.)

/* -> /*- for license, minor formatting changes

Use the (now standard) Ethernet address parse type.

MFS: Change interface name from "nge" to "ngeth" to avoid conflict
with nge(4).

Use a single style of multiple inclusion protection for Netgraph headers.

Reviewed by: archie, harti, emax

Fix GCC warnings caused by initializing a zero length array. In the process,
simply things a bit by getting rid of 'struct ng_parse_struct_info' which
was useless because it only contained one field.

MFC after: 2 weeks

slight cleanups during testing.

Add a node that looks to all the word like an ethernet but delivers its
ehternet frames to a netgraph hook.

Submitted by: "Vitaly V. Belekhov" <vitaly@riss-telecom.ru>
translated to 5.0 by me. man page not yet written.

This node still needs a little work.. don't use yet. Not yet linked into
the build.