linux-sg2042/drivers/infiniband/hw/amso1100/c2_vq.h

64 lines
2.5 KiB
C

/*
* Copyright (c) 2005 Ammasso, Inc. All rights reserved.
* Copyright (c) 2005 Open Grid Computing, Inc. 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.
*/
#ifndef _C2_VQ_H_
#define _C2_VQ_H_
#include <linux/sched.h>
#include "c2.h"
#include "c2_wr.h"
#include "c2_provider.h"
struct c2_vq_req {
u64 reply_msg; /* ptr to reply msg */
wait_queue_head_t wait_object; /* wait object for vq reqs */
atomic_t reply_ready; /* set when reply is ready */
atomic_t refcnt; /* used to cancel WRs... */
int event;
struct iw_cm_id *cm_id;
struct c2_qp *qp;
};
extern int vq_init(struct c2_dev *c2dev);
extern void vq_term(struct c2_dev *c2dev);
extern struct c2_vq_req *vq_req_alloc(struct c2_dev *c2dev);
extern void vq_req_free(struct c2_dev *c2dev, struct c2_vq_req *req);
extern void vq_req_get(struct c2_dev *c2dev, struct c2_vq_req *req);
extern void vq_req_put(struct c2_dev *c2dev, struct c2_vq_req *req);
extern int vq_send_wr(struct c2_dev *c2dev, union c2wr * wr);
extern void *vq_repbuf_alloc(struct c2_dev *c2dev);
extern void vq_repbuf_free(struct c2_dev *c2dev, void *reply);
extern int vq_wait_for_reply(struct c2_dev *c2dev, struct c2_vq_req *req);
#endif /* _C2_VQ_H_ */