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
34struct qib_user_sdma_queue;
35
36struct qib_user_sdma_queue *
37qib_user_sdma_queue_create(struct device *dev, int unit, int port, int sport);
38void qib_user_sdma_queue_destroy(struct qib_user_sdma_queue *pq);
39
40int qib_user_sdma_writev(struct qib_ctxtdata *pd,
41			 struct qib_user_sdma_queue *pq,
42			 const struct iovec *iov,
43			 unsigned long dim);
44
45int qib_user_sdma_make_progress(struct qib_pportdata *ppd,
46				struct qib_user_sdma_queue *pq);
47
48void qib_user_sdma_queue_drain(struct qib_pportdata *ppd,
49			       struct qib_user_sdma_queue *pq);
50
51u32 qib_user_sdma_complete_counter(const struct qib_user_sdma_queue *pq);
52u32 qib_user_sdma_inflight_counter(struct qib_user_sdma_queue *pq);
53