Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 146 insertions, 0 deletions

diff --git a/kernel/include/uapi/linux/mroute.h b/kernel/include/uapi/linux/mroute.h
new file mode 100644
index 000000000..a382d2c04
--- /dev/null
+++ b/kernel/include/uapi/linux/mroute.h
@@ -0,0 +1,146 @@
+#ifndef _UAPI__LINUX_MROUTE_H
+#define _UAPI__LINUX_MROUTE_H
+
+#include <linux/sockios.h>
+#include <linux/types.h>
+
+/*
+ *	Based on the MROUTING 3.5 defines primarily to keep
+ *	source compatibility with BSD.
+ *
+ *	See the mrouted code for the original history.
+ *
+ *      Protocol Independent Multicast (PIM) data structures included
+ *      Carlos Picoto (cap@di.fc.ul.pt)
+ *
+ */
+
+#define MRT_BASE	200
+#define MRT_INIT	(MRT_BASE)	/* Activate the kernel mroute code 	*/
+#define MRT_DONE	(MRT_BASE+1)	/* Shutdown the kernel mroute		*/
+#define MRT_ADD_VIF	(MRT_BASE+2)	/* Add a virtual interface		*/
+#define MRT_DEL_VIF	(MRT_BASE+3)	/* Delete a virtual interface		*/
+#define MRT_ADD_MFC	(MRT_BASE+4)	/* Add a multicast forwarding entry	*/
+#define MRT_DEL_MFC	(MRT_BASE+5)	/* Delete a multicast forwarding entry	*/
+#define MRT_VERSION	(MRT_BASE+6)	/* Get the kernel multicast version	*/
+#define MRT_ASSERT	(MRT_BASE+7)	/* Activate PIM assert mode		*/
+#define MRT_PIM		(MRT_BASE+8)	/* enable PIM code			*/
+#define MRT_TABLE	(MRT_BASE+9)	/* Specify mroute table ID		*/
+#define MRT_ADD_MFC_PROXY	(MRT_BASE+10)	/* Add a (*,*|G) mfc entry	*/
+#define MRT_DEL_MFC_PROXY	(MRT_BASE+11)	/* Del a (*,*|G) mfc entry	*/
+#define MRT_MAX		(MRT_BASE+11)
+
+#define SIOCGETVIFCNT	SIOCPROTOPRIVATE	/* IP protocol privates */
+#define SIOCGETSGCNT	(SIOCPROTOPRIVATE+1)
+#define SIOCGETRPF	(SIOCPROTOPRIVATE+2)
+
+#define MAXVIFS		32	
+typedef unsigned long vifbitmap_t;	/* User mode code depends on this lot */
+typedef unsigned short vifi_t;
+#define ALL_VIFS	((vifi_t)(-1))
+
+/*
+ *	Same idea as select
+ */
+ 
+#define VIFM_SET(n,m)	((m)|=(1<<(n)))
+#define VIFM_CLR(n,m)	((m)&=~(1<<(n)))
+#define VIFM_ISSET(n,m)	((m)&(1<<(n)))
+#define VIFM_CLRALL(m)	((m)=0)
+#define VIFM_COPY(mfrom,mto)	((mto)=(mfrom))
+#define VIFM_SAME(m1,m2)	((m1)==(m2))
+
+/*
+ *	Passed by mrouted for an MRT_ADD_VIF - again we use the
+ *	mrouted 3.6 structures for compatibility
+ */
+ 
+struct vifctl {
+	vifi_t	vifc_vifi;		/* Index of VIF */
+	unsigned char vifc_flags;	/* VIFF_ flags */
+	unsigned char vifc_threshold;	/* ttl limit */
+	unsigned int vifc_rate_limit;	/* Rate limiter values (NI) */
+	union {
+		struct in_addr vifc_lcl_addr;     /* Local interface address */
+		int            vifc_lcl_ifindex;  /* Local interface index   */
+	};
+	struct in_addr vifc_rmt_addr;	/* IPIP tunnel addr */
+};
+
+#define VIFF_TUNNEL		0x1	/* IPIP tunnel */
+#define VIFF_SRCRT		0x2	/* NI */
+#define VIFF_REGISTER		0x4	/* register vif	*/
+#define VIFF_USE_IFINDEX	0x8	/* use vifc_lcl_ifindex instead of
+					   vifc_lcl_addr to find an interface */
+
+/*
+ *	Cache manipulation structures for mrouted and PIMd
+ */
+ 
+struct mfcctl {
+	struct in_addr mfcc_origin;		/* Origin of mcast	*/
+	struct in_addr mfcc_mcastgrp;		/* Group in question	*/
+	vifi_t	mfcc_parent;			/* Where it arrived	*/
+	unsigned char mfcc_ttls[MAXVIFS];	/* Where it is going	*/
+	unsigned int mfcc_pkt_cnt;		/* pkt count for src-grp */
+	unsigned int mfcc_byte_cnt;
+	unsigned int mfcc_wrong_if;
+	int	     mfcc_expire;
+};
+
+/* 
+ *	Group count retrieval for mrouted
+ */
+ 
+struct sioc_sg_req {
+	struct in_addr src;
+	struct in_addr grp;
+	unsigned long pktcnt;
+	unsigned long bytecnt;
+	unsigned long wrong_if;
+};
+
+/*
+ *	To get vif packet counts
+ */
+
+struct sioc_vif_req {
+	vifi_t	vifi;		/* Which iface */
+	unsigned long icount;	/* In packets */
+	unsigned long ocount;	/* Out packets */
+	unsigned long ibytes;	/* In bytes */
+	unsigned long obytes;	/* Out bytes */
+};
+
+/*
+ *	This is the format the mroute daemon expects to see IGMP control
+ *	data. Magically happens to be like an IP packet as per the original
+ */
+ 
+struct igmpmsg {
+	__u32 unused1,unused2;
+	unsigned char im_msgtype;		/* What is this */
+	unsigned char im_mbz;			/* Must be zero */
+	unsigned char im_vif;			/* Interface (this ought to be a vifi_t!) */
+	unsigned char unused3;
+	struct in_addr im_src,im_dst;
+};
+
+/*
+ *	That's all usermode folks
+ */
+
+
+
+#define MFC_ASSERT_THRESH (3*HZ)		/* Maximal freq. of asserts */
+
+/*
+ *	Pseudo messages used by mrouted
+ */
+
+#define IGMPMSG_NOCACHE		1		/* Kern cache fill request to mrouted */
+#define IGMPMSG_WRONGVIF	2		/* For PIM assert processing (unused) */
+#define IGMPMSG_WHOLEPKT	3		/* For PIM Register processing */
+
+
+#endif /* _UAPI__LINUX_MROUTE_H */