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, 174 insertions, 0 deletions

diff --git a/kernel/fs/ncpfs/ncp_fs_sb.h b/kernel/fs/ncpfs/ncp_fs_sb.h
new file mode 100644
index 000000000..55e26fd80
--- /dev/null
+++ b/kernel/fs/ncpfs/ncp_fs_sb.h
@@ -0,0 +1,174 @@
+/*
+ *  ncp_fs_sb.h
+ *
+ *  Copyright (C) 1995, 1996 by Volker Lendecke
+ *
+ */
+
+#ifndef _NCP_FS_SB
+#define _NCP_FS_SB
+
+#include <linux/types.h>
+#include <linux/ncp_mount.h>
+#include <linux/net.h>
+#include <linux/mutex.h>
+#include <linux/backing-dev.h>
+#include <linux/workqueue.h>
+
+#define NCP_DEFAULT_OPTIONS 0		/* 2 for packet signatures */
+
+struct sock;
+
+struct ncp_mount_data_kernel {
+	unsigned long    flags;		/* NCP_MOUNT_* flags */
+	unsigned int	 int_flags;	/* internal flags */
+#define NCP_IMOUNT_LOGGEDIN_POSSIBLE	0x0001
+	kuid_t		 mounted_uid;	/* Who may umount() this filesystem? */
+	struct pid      *wdog_pid;	/* Who cares for our watchdog packets? */
+	unsigned int     ncp_fd;	/* The socket to the ncp port */
+	unsigned int     time_out;	/* How long should I wait after
+					   sending a NCP request? */
+	unsigned int     retry_count;	/* And how often should I retry? */
+	unsigned char	 mounted_vol[NCP_VOLNAME_LEN + 1];
+	kuid_t		 uid;
+	kgid_t		 gid;
+	umode_t		 file_mode;
+	umode_t		 dir_mode;
+	int		 info_fd;
+};
+
+struct ncp_server {
+	struct rcu_head rcu;
+	struct ncp_mount_data_kernel m;	/* Nearly all of the mount data is of
+					   interest for us later, so we store
+					   it completely. */
+
+	__u8 name_space[NCP_NUMBER_OF_VOLUMES + 2];
+
+	struct socket *ncp_sock;/* ncp socket */
+	struct socket *info_sock;
+
+	u8 sequence;
+	u8 task;
+	u16 connection;		/* Remote connection number */
+
+	u8 completion;		/* Status message from server */
+	u8 conn_status;		/* Bit 4 = 1 ==> Server going down, no
+				   requests allowed anymore.
+				   Bit 0 = 1 ==> Server is down. */
+
+	int buffer_size;	/* Negotiated bufsize */
+
+	int reply_size;		/* Size of last reply */
+
+	int packet_size;
+	unsigned char *packet;	/* Here we prepare requests and
+				   receive replies */
+	unsigned char *txbuf;	/* Storage for current request */
+	unsigned char *rxbuf;	/* Storage for reply to current request */
+
+	int lock;		/* To prevent mismatch in protocols. */
+	struct mutex mutex;
+
+	int current_size;	/* for packet preparation */
+	int has_subfunction;
+	int ncp_reply_size;
+
+	int root_setuped;
+	struct mutex root_setup_lock;
+
+	/* info for packet signing */
+	int sign_wanted;	/* 1=Server needs signed packets */
+	int sign_active;	/* 0=don't do signing, 1=do */
+	char sign_root[8];	/* generated from password and encr. key */
+	char sign_last[16];	
+
+	/* Authentication info: NDS or BINDERY, username */
+	struct {
+		int	auth_type;
+		size_t	object_name_len;
+		void*	object_name;
+		int	object_type;
+	} auth;
+	/* Password info */
+	struct {
+		size_t	len;
+		void*	data;
+	} priv;
+	struct rw_semaphore auth_rwsem;
+
+	/* nls info: codepage for volume and charset for I/O */
+	struct nls_table *nls_vol;
+	struct nls_table *nls_io;
+
+	/* maximum age in jiffies */
+	atomic_t dentry_ttl;
+
+	/* miscellaneous */
+	unsigned int flags;
+
+	spinlock_t requests_lock;	/* Lock accesses to tx.requests, tx.creq and rcv.creq when STREAM mode */
+
+	void (*data_ready)(struct sock* sk);
+	void (*error_report)(struct sock* sk);
+	void (*write_space)(struct sock* sk);	/* STREAM mode only */
+	struct {
+		struct work_struct tq;		/* STREAM/DGRAM: data/error ready */
+		struct ncp_request_reply* creq;	/* STREAM/DGRAM: awaiting reply from this request */
+		struct mutex creq_mutex;	/* DGRAM only: lock accesses to rcv.creq */
+
+		unsigned int state;		/* STREAM only: receiver state */
+		struct {
+			__u32 magic __packed;
+			__u32 len __packed;
+			__u16 type __packed;
+			__u16 p1 __packed;
+			__u16 p2 __packed;
+			__u16 p3 __packed;
+			__u16 type2 __packed;
+		} buf;				/* STREAM only: temporary buffer */
+		unsigned char* ptr;		/* STREAM only: pointer to data */
+		size_t len;			/* STREAM only: length of data to receive */
+	} rcv;
+	struct {
+		struct list_head requests;	/* STREAM only: queued requests */
+		struct work_struct tq;		/* STREAM only: transmitter ready */
+		struct ncp_request_reply* creq;	/* STREAM only: currently transmitted entry */
+	} tx;
+	struct timer_list timeout_tm;		/* DGRAM only: timeout timer */
+	struct work_struct timeout_tq;		/* DGRAM only: associated queue, we run timers from process context */
+	int timeout_last;			/* DGRAM only: current timeout length */
+	int timeout_retries;			/* DGRAM only: retries left */
+	struct {
+		size_t len;
+		__u8 data[128];
+	} unexpected_packet;
+	struct backing_dev_info bdi;
+};
+
+extern void ncp_tcp_rcv_proc(struct work_struct *work);
+extern void ncp_tcp_tx_proc(struct work_struct *work);
+extern void ncpdgram_rcv_proc(struct work_struct *work);
+extern void ncpdgram_timeout_proc(struct work_struct *work);
+extern void ncpdgram_timeout_call(unsigned long server);
+extern void ncp_tcp_data_ready(struct sock* sk);
+extern void ncp_tcp_write_space(struct sock* sk);
+extern void ncp_tcp_error_report(struct sock* sk);
+
+#define NCP_FLAG_UTF8	1
+
+#define NCP_CLR_FLAG(server, flag)	((server)->flags &= ~(flag))
+#define NCP_SET_FLAG(server, flag)	((server)->flags |= (flag))
+#define NCP_IS_FLAG(server, flag)	((server)->flags & (flag))
+
+static inline int ncp_conn_valid(struct ncp_server *server)
+{
+	return ((server->conn_status & 0x11) == 0);
+}
+
+static inline void ncp_invalidate_conn(struct ncp_server *server)
+{
+	server->conn_status |= 0x01;
+}
+
+#endif