Initial import

1 files changed, 187 insertions, 0 deletions

diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs.h b/drivers/staging/lustre/include/linux/libcfs/libcfs.h
new file mode 100644
index 000000000..4410d7fdc
--- /dev/null
+++ b/drivers/staging/lustre/include/linux/libcfs/libcfs.h
@@ -0,0 +1,187 @@
+/*
+ * GPL HEADER START
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2012, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ */
+
+#ifndef __LIBCFS_LIBCFS_H__
+#define __LIBCFS_LIBCFS_H__
+
+#if !__GNUC__
+#define __attribute__(x)
+#endif
+
+#include "linux/libcfs.h"
+#include <linux/gfp.h>
+
+#include "curproc.h"
+
+#ifndef offsetof
+# define offsetof(typ, memb) ((long)(long_ptr_t)((char *)&(((typ *)0)->memb)))
+#endif
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(a) ((sizeof(a)) / (sizeof((a)[0])))
+#endif
+
+#if !defined(swap)
+#define swap(x, y) do { typeof(x) z = x; x = y; y = z; } while (0)
+#endif
+
+#if !defined(container_of)
+/* given a pointer @ptr to the field @member embedded into type (usually
+ * struct) @type, return pointer to the embedding instance of @type. */
+#define container_of(ptr, type, member) \
+	((type *)((char *)(ptr)-(char *)(&((type *)0)->member)))
+#endif
+
+static inline int __is_po2(unsigned long long val)
+{
+	return !(val & (val - 1));
+}
+
+#define IS_PO2(val) __is_po2((unsigned long long)(val))
+
+#define LOWEST_BIT_SET(x)       ((x) & ~((x) - 1))
+
+/*
+ * Lustre Error Checksum: calculates checksum
+ * of Hex number by XORing each bit.
+ */
+#define LERRCHKSUM(hexnum) (((hexnum) & 0xf) ^ ((hexnum) >> 4 & 0xf) ^ \
+			   ((hexnum) >> 8 & 0xf))
+
+#define LUSTRE_SRV_LNET_PID      LUSTRE_LNET_PID
+
+#include <linux/list.h>
+
+int libcfs_arch_init(void);
+void libcfs_arch_cleanup(void);
+
+/* libcfs tcpip */
+int libcfs_ipif_query(char *name, int *up, __u32 *ip, __u32 *mask);
+int libcfs_ipif_enumerate(char ***names);
+void libcfs_ipif_free_enumeration(char **names, int n);
+int libcfs_sock_listen(struct socket **sockp, __u32 ip, int port, int backlog);
+int libcfs_sock_accept(struct socket **newsockp, struct socket *sock);
+void libcfs_sock_abort_accept(struct socket *sock);
+int libcfs_sock_connect(struct socket **sockp, int *fatal,
+			__u32 local_ip, int local_port,
+			__u32 peer_ip, int peer_port);
+int libcfs_sock_setbuf(struct socket *socket, int txbufsize, int rxbufsize);
+int libcfs_sock_getbuf(struct socket *socket, int *txbufsize, int *rxbufsize);
+int libcfs_sock_getaddr(struct socket *socket, int remote, __u32 *ip, int *port);
+int libcfs_sock_write(struct socket *sock, void *buffer, int nob, int timeout);
+int libcfs_sock_read(struct socket *sock, void *buffer, int nob, int timeout);
+void libcfs_sock_release(struct socket *sock);
+
+/* need both kernel and user-land acceptor */
+#define LNET_ACCEPTOR_MIN_RESERVED_PORT    512
+#define LNET_ACCEPTOR_MAX_RESERVED_PORT    1023
+
+/*
+ * libcfs pseudo device operations
+ *
+ * It's just draft now.
+ */
+
+struct cfs_psdev_file {
+	unsigned long   off;
+	void	    *private_data;
+	unsigned long   reserved1;
+	unsigned long   reserved2;
+};
+
+struct cfs_psdev_ops {
+	int (*p_open)(unsigned long, void *);
+	int (*p_close)(unsigned long, void *);
+	int (*p_read)(struct cfs_psdev_file *, char *, unsigned long);
+	int (*p_write)(struct cfs_psdev_file *, char *, unsigned long);
+	int (*p_ioctl)(struct cfs_psdev_file *, unsigned long, void *);
+};
+
+/*
+ * Drop into debugger, if possible. Implementation is provided by platform.
+ */
+
+void cfs_enter_debugger(void);
+
+/*
+ * Defined by platform
+ */
+int unshare_fs_struct(void);
+sigset_t cfs_get_blocked_sigs(void);
+sigset_t cfs_block_allsigs(void);
+sigset_t cfs_block_sigs(unsigned long sigs);
+sigset_t cfs_block_sigsinv(unsigned long sigs);
+void cfs_restore_sigs(sigset_t);
+int cfs_signal_pending(void);
+void cfs_clear_sigpending(void);
+
+/*
+ * Random number handling
+ */
+
+/* returns a random 32-bit integer */
+unsigned int cfs_rand(void);
+/* seed the generator */
+void cfs_srand(unsigned int, unsigned int);
+void cfs_get_random_bytes(void *buf, int size);
+
+#include "libcfs_debug.h"
+#include "libcfs_cpu.h"
+#include "libcfs_private.h"
+#include "libcfs_ioctl.h"
+#include "libcfs_prim.h"
+#include "libcfs_time.h"
+#include "libcfs_string.h"
+#include "libcfs_kernelcomm.h"
+#include "libcfs_workitem.h"
+#include "libcfs_hash.h"
+#include "libcfs_fail.h"
+#include "libcfs_crypto.h"
+
+/* container_of depends on "likely" which is defined in libcfs_private.h */
+static inline void *__container_of(void *ptr, unsigned long shift)
+{
+	if (unlikely(IS_ERR(ptr) || ptr == NULL))
+		return ptr;
+	return (char *)ptr - shift;
+}
+
+#define container_of0(ptr, type, member) \
+	((type *)__container_of((void *)(ptr), offsetof(type, member)))
+
+#define _LIBCFS_H
+
+#endif /* _LIBCFS_H */