[linux-2.6-block.git] / drivers / staging / rdma / amso1100 / c2_vq.h

/*
 * 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;
};

int vq_init(struct c2_dev *c2dev);
void vq_term(struct c2_dev *c2dev);

struct c2_vq_req *vq_req_alloc(struct c2_dev *c2dev);
void vq_req_free(struct c2_dev *c2dev, struct c2_vq_req *req);
void vq_req_get(struct c2_dev *c2dev, struct c2_vq_req *req);
void vq_req_put(struct c2_dev *c2dev, struct c2_vq_req *req);
int vq_send_wr(struct c2_dev *c2dev, union c2wr * wr);

void *vq_repbuf_alloc(struct c2_dev *c2dev);
void vq_repbuf_free(struct c2_dev *c2dev, void *reply);

int vq_wait_for_reply(struct c2_dev *c2dev, struct c2_vq_req *req);
#endif				/* _C2_VQ_H_ */
Commit	Line	Data
f94b533d TT	1	/*
	2	* Copyright (c) 2005 Ammasso, Inc. All rights reserved.
	3	* Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved.
	4	*
	5	* This software is available to you under a choice of one of two
	6	* licenses. You may choose to be licensed under the terms of the GNU
	7	* General Public License (GPL) Version 2, available from the file
	8	* COPYING in the main directory of this source tree, or the
	9	* OpenIB.org BSD license below:
	10	*
	11	* Redistribution and use in source and binary forms, with or
	12	* without modification, are permitted provided that the following
	13	* conditions are met:
	14	*
	15	* - Redistributions of source code must retain the above
	16	* copyright notice, this list of conditions and the following
	17	* disclaimer.
	18	*
	19	* - Redistributions in binary form must reproduce the above
	20	* copyright notice, this list of conditions and the following
	21	* disclaimer in the documentation and/or other materials
	22	* provided with the distribution.
	23	*
	24	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	25	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	26	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
	27	* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
	28	* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
	29	* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
	30	* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	31	* SOFTWARE.
	32	*/
	33	#ifndef _C2_VQ_H_
	34	#define _C2_VQ_H_
	35	#include <linux/sched.h>
	36	#include "c2.h"
	37	#include "c2_wr.h"
	38	#include "c2_provider.h"
	39
	40	struct c2_vq_req {
	41	u64 reply_msg; /* ptr to reply msg */
	42	wait_queue_head_t wait_object; /* wait object for vq reqs */
	43	atomic_t reply_ready; /* set when reply is ready */
	44	atomic_t refcnt; /* used to cancel WRs... */
	45	int event;
	46	struct iw_cm_id *cm_id;
	47	struct c2_qp *qp;
	48	};
	49
99d19626 AKC	50	int vq_init(struct c2_dev *c2dev);
99d19626 AKC	51	void vq_term(struct c2_dev *c2dev);
f94b533d	52
99d19626 AKC	53	struct c2_vq_req vq_req_alloc(struct c2_dev c2dev);
	54	void vq_req_free(struct c2_dev c2dev, struct c2_vq_req req);
	55	void vq_req_get(struct c2_dev c2dev, struct c2_vq_req req);
	56	void vq_req_put(struct c2_dev c2dev, struct c2_vq_req req);
	57	int vq_send_wr(struct c2_dev c2dev, union c2wr wr);
f94b533d	58
99d19626 AKC	59	void vq_repbuf_alloc(struct c2_dev c2dev);
99d19626 AKC	60	void vq_repbuf_free(struct c2_dev c2dev, void reply);
f94b533d	61
99d19626	62	int vq_wait_for_reply(struct c2_dev c2dev, struct c2_vq_req req);
f94b533d	63	#endif /* _C2_VQ_H_ */