[newlib-cygwin] Add SIOCGIFDOWNREASON.

[newlib-cygwin] Add SIOCGIFDOWNREASON.

[Sebastian Huber]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=7e9b1550fd1c9690bc560404388ba4907d10996a

commit 7e9b1550fd1c9690bc560404388ba4907d10996a
Author: kib <kib@FreeBSD.org>
Date:   Tue Sep 17 18:49:13 2019 +0000

    Add SIOCGIFDOWNREASON.
    
    The ioctl(2) is intended to provide more details about the cause of
    the down for the link.
    
    Eventually we might define a comprehensive list of codes for the
    situations.  But interface also allows the driver to provide free-form
    null-terminated ASCII string to provide arbitrary non-formalized
    information.  Sample implementation exists for mlx5(4), where the
    string is fetched from firmware controlling the port.
    
    Reviewed by:	hselasky, rrs
    Sponsored by:	Mellanox Technologies
    MFC after:	1 week
    Differential revision:	https://reviews.freebsd.org/D21527

Diff:
---
 newlib/libc/sys/rtems/include/net/if.h     | 12 +++++++++++-
 newlib/libc/sys/rtems/include/sys/sockio.h |  4 +++-
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/newlib/libc/sys/rtems/include/net/if.h b/newlib/libc/sys/rtems/include/net/if.h
index a5539bd..c7c5e86 100644
--- a/newlib/libc/sys/rtems/include/net/if.h
+++ b/newlib/libc/sys/rtems/include/net/if.h
@@ -29,7 +29,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)if.h	8.1 (Berkeley) 6/10/93
- * $FreeBSD: head/sys/net/if.h 340968 2018-11-26 13:42:18Z markj $
+ * $FreeBSD: head/sys/net/if.h 352458 2019-09-17 18:49:13Z kib $
  */
 
 #ifndef _NET_IF_H_
@@ -585,6 +585,16 @@ struct ifrsshash {
 
 #define	IFNET_PCP_NONE	0xff	/* PCP disabled */
 
+#define	IFDR_MSG_SIZE		64
+#define	IFDR_REASON_MSG		1
+#define	IFDR_REASON_VENDOR	2
+struct ifdownreason {
+	char		ifdr_name[IFNAMSIZ];
+	uint32_t	ifdr_reason;
+	uint32_t	ifdr_vendor;
+	char		ifdr_msg[IFDR_MSG_SIZE];
+};
+
 #endif /* __BSD_VISIBLE */
 
 #ifndef _KERNEL
diff --git a/newlib/libc/sys/rtems/include/sys/sockio.h b/newlib/libc/sys/rtems/include/sys/sockio.h
index 786202a..7f33ffa 100644
--- a/newlib/libc/sys/rtems/include/sys/sockio.h
+++ b/newlib/libc/sys/rtems/include/sys/sockio.h
@@ -29,7 +29,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)sockio.h	8.1 (Berkeley) 3/28/94
- * $FreeBSD: head/sys/sys/sockio.h 331622 2018-03-27 15:29:32Z kib $
+ * $FreeBSD: head/sys/sys/sockio.h 352458 2019-09-17 18:49:13Z kib $
  */
 
 #ifndef _SYS_SOCKIO_H_
@@ -143,4 +143,6 @@
 #define	SIOCGLANPCP	_IOWR('i', 152, struct ifreq)	/* Get (V)LAN PCP */
 #define	SIOCSLANPCP	 _IOW('i', 153, struct ifreq)	/* Set (V)LAN PCP */
 
+#define	SIOCGIFDOWNREASON	_IOWR('i', 154, struct ifdownreason)
+
 #endif /* !_SYS_SOCKIO_H_ */