mr.h

 1/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
 2/*
 3 * Copyright(c) 2016 Intel Corporation.
 4 */
 5
 6#ifndef DEF_RVTMR_H
 7#define DEF_RVTMR_H
 8
 9#include <rdma/rdma_vt.h>
10
11struct rvt_mr {
12	struct ib_mr ibmr;
13	struct ib_umem *umem;
14	struct rvt_mregion mr;  /* must be last */
15};
16
17static inline struct rvt_mr *to_imr(struct ib_mr *ibmr)
18{
19	return container_of(ibmr, struct rvt_mr, ibmr);
20}
21
22int rvt_driver_mr_init(struct rvt_dev_info *rdi);
23void rvt_mr_exit(struct rvt_dev_info *rdi);
24
25/* Mem Regions */
26struct ib_mr *rvt_get_dma_mr(struct ib_pd *pd, int acc);
27struct ib_mr *rvt_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
28			      u64 virt_addr, int mr_access_flags,
29			      struct ib_dmah *dmah,
30			      struct ib_udata *udata);
31int rvt_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata);
32struct ib_mr *rvt_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
33			   u32 max_num_sg);
34int rvt_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg,
35		  int sg_nents, unsigned int *sg_offset);
36
37#endif          /* DEF_RVTMR_H */