1/*
 2 * Intel MIC Platform Software Stack (MPSS)
 3 *
 4 * Copyright(c) 2015 Intel Corporation.
 5 *
 6 * This program is free software; you can redistribute it and/or modify
 7 * it under the terms of the GNU General Public License, version 2, as
 8 * published by the Free Software Foundation.
 9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
14 *
15 * Intel SCIF driver.
16 *
17 */
18#ifndef SCIF_RMA_LIST_H
19#define SCIF_RMA_LIST_H
20
21/*
22 * struct scif_rma_req - Self Registration list RMA Request query
23 *
24 * @out_window - Returns the window if found
25 * @offset: Starting offset
26 * @nr_bytes: number of bytes
27 * @prot: protection requested i.e. read or write or both
28 * @type: Specify single, partial or multiple windows
29 * @head: Head of list on which to search
30 * @va_for_temp: VA for searching temporary cached windows
31 */
32struct scif_rma_req {
33	struct scif_window **out_window;
34	union {
35		s64 offset;
36		unsigned long va_for_temp;
37	};
38	size_t nr_bytes;
39	int prot;
40	enum scif_window_type type;
41	struct list_head *head;
42};
43
44/* Insert */
45void scif_insert_window(struct scif_window *window, struct list_head *head);
46void scif_insert_tcw(struct scif_window *window,
47		     struct list_head *head);
48/* Query */
49int scif_query_window(struct scif_rma_req *request);
50int scif_query_tcw(struct scif_endpt *ep, struct scif_rma_req *request);
51/* Called from close to unregister all self windows */
52int scif_unregister_all_windows(scif_epd_t epd);
53void scif_unmap_all_windows(scif_epd_t epd);
54/* Traverse list and unregister */
55int scif_rma_list_unregister(struct scif_window *window, s64 offset,
56			     int nr_pages);
57#endif /* SCIF_RMA_LIST_H */