[newlib-cygwin] Add IP(V6)_VLAN_PCP to set 802.1 priority per-flow.

[Sebastian Huber <sh@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=3f0cc70c136b2e16ec9b6f5ca4355ef5326210f9

commit 3f0cc70c136b2e16ec9b6f5ca4355ef5326210f9
Author: Richard Scheffenegger <rscheff@FreeBSD.org>
Date:   Fri Oct 9 12:06:43 2020 +0000

    Add IP(V6)_VLAN_PCP to set 802.1 priority per-flow.
    
    This adds a new IP_PROTO / IPV6_PROTO setsockopt (getsockopt)
    option IP(V6)_VLAN_PCP, which can be set to -1 (interface
    default), or explicitly to any priority between 0 and 7.
    
    Note that for untagged traffic, explicitly adding a
    priority will insert a special 801.1Q vlan header with
    vlan ID = 0 to carry the priority setting
    
    Reviewed by:    gallatin, rrs
    MFC after:      2 weeks
    Sponsored by:   NetApp, Inc.
    Differential Revision:  https://reviews.freebsd.org/D26409

Diff:
---
 newlib/libc/sys/rtems/include/netinet/in.h   | 4 ++++
 newlib/libc/sys/rtems/include/netinet6/in6.h | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/newlib/libc/sys/rtems/include/netinet/in.h b/newlib/libc/sys/rtems/include/netinet/in.h
index 749e74eda..059f50d9b 100644
--- a/newlib/libc/sys/rtems/include/netinet/in.h
+++ b/newlib/libc/sys/rtems/include/netinet/in.h
@@ -483,6 +483,10 @@ __END_DECLS
 /* The following option is private; do not use it from user applications. */
 #define	IP_MSFILTER			74   /* set/get filter list */
 
+/* The following option deals with the 802.1Q Ethernet Priority Code Point */
+#define	IP_VLAN_PCP		75   /* int; set/get PCP used for packet, */
+				     /*      -1 use interface default */
+
 /* Protocol Independent Multicast API [RFC3678] */
 #define	MCAST_JOIN_GROUP		80   /* join an any-source group */
 #define	MCAST_LEAVE_GROUP		81   /* leave all sources for group */
diff --git a/newlib/libc/sys/rtems/include/netinet6/in6.h b/newlib/libc/sys/rtems/include/netinet6/in6.h
index 68d4c3e4e..55be82fed 100644
--- a/newlib/libc/sys/rtems/include/netinet6/in6.h
+++ b/newlib/libc/sys/rtems/include/netinet6/in6.h
@@ -387,6 +387,10 @@ struct route_in6 {
 				    * set/get multicast source filter list.
 				    */
 
+/* The following option deals with the 802.1Q Ethernet Priority Code Point */
+#define	IPV6_VLAN_PCP		75  /* int; set/get PCP used for packet, */
+				    /*      -1 use interface default */
+
 /* to define items, should talk with KAME guys first, for *BSD compatibility */
 
 #define IPV6_RTHDR_LOOSE     0 /* this hop need not be a neighbor. XXX old spec */