[linux-2.6-block.git] / drivers / staging / rdma / ipath / ipath_user_sdma.h

/*
 * Copyright (c) 2007, 2008 QLogic Corporation. 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.
 */
#include <linux/device.h>

struct ipath_user_sdma_queue;

struct ipath_user_sdma_queue *
ipath_user_sdma_queue_create(struct device *dev, int unit, int port, int sport);
void ipath_user_sdma_queue_destroy(struct ipath_user_sdma_queue *pq);

int ipath_user_sdma_writev(struct ipath_devdata *dd,
			   struct ipath_user_sdma_queue *pq,
			   const struct iovec *iov,
			   unsigned long dim);

int ipath_user_sdma_make_progress(struct ipath_devdata *dd,
				  struct ipath_user_sdma_queue *pq);

void ipath_user_sdma_queue_drain(struct ipath_devdata *dd,
				 struct ipath_user_sdma_queue *pq);

u32 ipath_user_sdma_complete_counter(const struct ipath_user_sdma_queue *pq);
u32 ipath_user_sdma_inflight_counter(struct ipath_user_sdma_queue *pq);
Commit	Line	Data
909c0faa AJ	1	/*
	2	* Copyright (c) 2007, 2008 QLogic Corporation. All rights reserved.
	3	*
	4	* This software is available to you under a choice of one of two
	5	* licenses. You may choose to be licensed under the terms of the GNU
	6	* General Public License (GPL) Version 2, available from the file
	7	* COPYING in the main directory of this source tree, or the
	8	* OpenIB.org BSD license below:
	9	*
	10	* Redistribution and use in source and binary forms, with or
	11	* without modification, are permitted provided that the following
	12	* conditions are met:
	13	*
	14	* - Redistributions of source code must retain the above
	15	* copyright notice, this list of conditions and the following
	16	* disclaimer.
	17	*
	18	* - Redistributions in binary form must reproduce the above
	19	* copyright notice, this list of conditions and the following
	20	* disclaimer in the documentation and/or other materials
	21	* provided with the distribution.
	22	*
	23	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	24	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	25	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
	26	* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
	27	* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
	28	* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
	29	* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	30	* SOFTWARE.
	31	*/
	32	#include <linux/device.h>
	33
	34	struct ipath_user_sdma_queue;
	35
	36	struct ipath_user_sdma_queue *
	37	ipath_user_sdma_queue_create(struct device *dev, int unit, int port, int sport);
	38	void ipath_user_sdma_queue_destroy(struct ipath_user_sdma_queue *pq);
	39
	40	int ipath_user_sdma_writev(struct ipath_devdata *dd,
	41	struct ipath_user_sdma_queue *pq,
	42	const struct iovec *iov,
	43	unsigned long dim);
	44
	45	int ipath_user_sdma_make_progress(struct ipath_devdata *dd,
	46	struct ipath_user_sdma_queue *pq);
	47
909c0faa AJ	48	void ipath_user_sdma_queue_drain(struct ipath_devdata *dd,
	49	struct ipath_user_sdma_queue *pq);
	50
	51	u32 ipath_user_sdma_complete_counter(const struct ipath_user_sdma_queue *pq);
	52	u32 ipath_user_sdma_inflight_counter(struct ipath_user_sdma_queue *pq);