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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 <rdma/ib_cm.h>
#include <rdma/ib_user_cm.h>
#define IB_UCM_CM_ID_INVALID 0xffffffff
struct ib_ucm_file {
struct semaphore mutex;
struct file *filp;
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;
wait_queue_head_t wait;
atomic_t ref;
struct ib_ucm_file *file;
struct ib_cm_id *cm_id;
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 */
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