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-rw-r--r--drivers/infiniband/core/ucm.h89
1 files changed, 89 insertions, 0 deletions
diff --git a/drivers/infiniband/core/ucm.h b/drivers/infiniband/core/ucm.h
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+/*
+ * Copyright (c) 2005 Topspin Communications. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * $Id: ucm.h 2208 2005-04-22 23:24:31Z libor $
+ */
+
+#ifndef UCM_H
+#define UCM_H
+
+#include <linux/fs.h>
+#include <linux/device.h>
+#include <linux/cdev.h>
+#include <linux/idr.h>
+
+#include <ib_cm.h>
+#include <ib_user_cm.h>
+
+#define IB_UCM_CM_ID_INVALID 0xffffffff
+
+struct ib_ucm_file {
+ struct semaphore mutex;
+ struct file *filp;
+ /*
+ * list of pending events
+ */
+ struct list_head ctxs; /* list of active connections */
+ struct list_head events; /* list of pending events */
+ wait_queue_head_t poll_wait;
+};
+
+struct ib_ucm_context {
+ int id;
+ int ref;
+ int error;
+
+ struct ib_ucm_file *file;
+ struct ib_cm_id *cm_id;
+ struct semaphore mutex;
+
+ struct list_head events; /* list of pending events. */
+ struct list_head file_list; /* member in file ctx list */
+};
+
+struct ib_ucm_event {
+ struct ib_ucm_context *ctx;
+ struct list_head file_list; /* member in file event list */
+ struct list_head ctx_list; /* member in ctx event list */
+
+ struct ib_ucm_event_resp resp;
+ void *data;
+ void *info;
+ int data_len;
+ int info_len;
+ /*
+ * new connection identifiers needs to be saved until
+ * userspace can get a handle on them.
+ */
+ struct ib_cm_id *cm_id;
+};
+
+#endif /* UCM_H */