1#ifndef DEF_RVTMR_H
 2#define DEF_RVTMR_H
 3
 4/*
 5 * Copyright(c) 2016 Intel Corporation.
 6 *
 7 * This file is provided under a dual BSD/GPLv2 license.  When using or
 8 * redistributing this file, you may do so under either license.
 9 *
10 * GPL LICENSE SUMMARY
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of version 2 of the GNU General Public License as
14 * published by the Free Software Foundation.
15 *
16 * This program is distributed in the hope that it will be useful, but
17 * WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
19 * General Public License for more details.
20 *
21 * BSD LICENSE
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 *
27 *  - Redistributions of source code must retain the above copyright
28 *    notice, this list of conditions and the following disclaimer.
29 *  - Redistributions in binary form must reproduce the above copyright
30 *    notice, this list of conditions and the following disclaimer in
31 *    the documentation and/or other materials provided with the
32 *    distribution.
33 *  - Neither the name of Intel Corporation nor the names of its
34 *    contributors may be used to endorse or promote products derived
35 *    from this software without specific prior written permission.
36 *
37 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
38 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
39 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
40 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
41 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
42 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
43 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
44 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
45 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
46 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
47 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
48 *
49 */
50
51#include <rdma/rdma_vt.h>
52struct rvt_fmr {
53	struct ib_fmr ibfmr;
54	struct rvt_mregion mr;        /* must be last */
55};
56
57struct rvt_mr {
58	struct ib_mr ibmr;
59	struct ib_umem *umem;
60	struct rvt_mregion mr;  /* must be last */
61};
62
63static inline struct rvt_fmr *to_ifmr(struct ib_fmr *ibfmr)
64{
65	return container_of(ibfmr, struct rvt_fmr, ibfmr);
66}
67
68static inline struct rvt_mr *to_imr(struct ib_mr *ibmr)
69{
70	return container_of(ibmr, struct rvt_mr, ibmr);
71}
72
73int rvt_driver_mr_init(struct rvt_dev_info *rdi);
74void rvt_mr_exit(struct rvt_dev_info *rdi);
75
76/* Mem Regions */
77struct ib_mr *rvt_get_dma_mr(struct ib_pd *pd, int acc);
78struct ib_mr *rvt_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
79			      u64 virt_addr, int mr_access_flags,
80			      struct ib_udata *udata);
81int rvt_dereg_mr(struct ib_mr *ibmr);
82struct ib_mr *rvt_alloc_mr(struct ib_pd *pd,
83			   enum ib_mr_type mr_type,
84			   u32 max_num_sg);
85int rvt_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg,
86		  int sg_nents, unsigned int *sg_offset);
87struct ib_fmr *rvt_alloc_fmr(struct ib_pd *pd, int mr_access_flags,
88			     struct ib_fmr_attr *fmr_attr);
89int rvt_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list,
90		     int list_len, u64 iova);
91int rvt_unmap_fmr(struct list_head *fmr_list);
92int rvt_dealloc_fmr(struct ib_fmr *ibfmr);
93
94#endif          /* DEF_RVTMR_H */