diff options
Diffstat (limited to 'drivers/staging/lustre/include/linux/libcfs/libcfs_kernelcomm.h')
| -rw-r--r-- | drivers/staging/lustre/include/linux/libcfs/libcfs_kernelcomm.h | 118 |
1 files changed, 0 insertions, 118 deletions
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_kernelcomm.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_kernelcomm.h deleted file mode 100644 index 41f3d810a..000000000 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_kernelcomm.h +++ /dev/null @@ -1,118 +0,0 @@ -/* - * 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) 2009, 2010, Oracle and/or its affiliates. All rights reserved. - * Use is subject to license terms. - */ -/* - * This file is part of Lustre, http://www.lustre.org/ - * Lustre is a trademark of Sun Microsystems, Inc. - * - * Author: Nathan Rutman <nathan.rutman@sun.com> - * - * libcfs/include/libcfs/libcfs_kernelcomm.h - * - * Kernel <-> userspace communication routines. - * The definitions below are used in the kernel and userspace. - * - */ - -#ifndef __LIBCFS_KERNELCOMM_H__ -#define __LIBCFS_KERNELCOMM_H__ - -#ifndef __LIBCFS_LIBCFS_H__ -#error Do not #include this file directly. #include <linux/libcfs/libcfs.h> instead -#endif - -/* KUC message header. - * All current and future KUC messages should use this header. - * To avoid having to include Lustre headers from libcfs, define this here. - */ -struct kuc_hdr { - __u16 kuc_magic; - __u8 kuc_transport; /* Each new Lustre feature should use a different - transport */ - __u8 kuc_flags; - __u16 kuc_msgtype; /* Message type or opcode, transport-specific */ - __u16 kuc_msglen; /* Including header */ -} __aligned(sizeof(__u64)); - -#define KUC_CHANGELOG_MSG_MAXSIZE (sizeof(struct kuc_hdr)+CR_MAXSIZE) - -#define KUC_MAGIC 0x191C /*Lustre9etLinC */ -#define KUC_FL_BLOCK 0x01 /* Wait for send */ - -/* kuc_msgtype values are defined in each transport */ -enum kuc_transport_type { - KUC_TRANSPORT_GENERIC = 1, - KUC_TRANSPORT_HSM = 2, - KUC_TRANSPORT_CHANGELOG = 3, -}; - -enum kuc_generic_message_type { - KUC_MSG_SHUTDOWN = 1, -}; - -/* prototype for callback function on kuc groups */ -typedef int (*libcfs_kkuc_cb_t)(__u32 data, void *cb_arg); - -/* KUC Broadcast Groups. This determines which userspace process hears which - * messages. Mutliple transports may be used within a group, or multiple - * groups may use the same transport. Broadcast - * groups need not be used if e.g. a UID is specified instead; - * use group 0 to signify unicast. - */ -#define KUC_GRP_HSM 0x02 -#define KUC_GRP_MAX KUC_GRP_HSM - -/* Kernel methods */ -int libcfs_kkuc_msg_put(struct file *fp, void *payload); -int libcfs_kkuc_group_put(int group, void *payload); -int libcfs_kkuc_group_add(struct file *fp, int uid, unsigned int group, - __u32 data); -int libcfs_kkuc_group_rem(int uid, int group); -int libcfs_kkuc_group_foreach(int group, libcfs_kkuc_cb_t cb_func, - void *cb_arg); - -#define LK_FLG_STOP 0x01 - -/* kernelcomm control structure, passed from userspace to kernel */ -typedef struct lustre_kernelcomm { - __u32 lk_wfd; - __u32 lk_rfd; - __u32 lk_uid; - __u32 lk_group; - __u32 lk_data; - __u32 lk_flags; -} __packed lustre_kernelcomm; - -/* Userspace methods */ -int libcfs_ukuc_start(lustre_kernelcomm *l, int groups); -int libcfs_ukuc_stop(lustre_kernelcomm *l); -int libcfs_ukuc_msg_get(lustre_kernelcomm *l, char *buf, int maxsize, - int transport); - -#endif /* __LIBCFS_KERNELCOMM_H__ */ |