drivers/infiniband/sw/rdmavt/mr.h

/* SPDX-License-Identifier: GPL-2.0 or BSD-3-Clause */
/*
 * Copyright(c) 2016 Intel Corporation.
 */

#ifndef DEF_RVTMR_H
#define DEF_RVTMR_H

#include <rdma/rdma_vt.h>

struct rvt_mr {
	struct ib_mr ibmr;
	struct ib_umem *umem;
	struct rvt_mregion mr;  /* must be last */
};

static inline struct rvt_mr *to_imr(struct ib_mr *ibmr)
{
	return container_of(ibmr, struct rvt_mr, ibmr);
}

int rvt_driver_mr_init(struct rvt_dev_info *rdi);
void rvt_mr_exit(struct rvt_dev_info *rdi);

/* Mem Regions */
struct ib_mr *rvt_get_dma_mr(struct ib_pd *pd, int acc);
struct ib_mr *rvt_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
			      u64 virt_addr, int mr_access_flags,
			      struct ib_udata *udata);
int rvt_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata);
struct ib_mr *rvt_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
			   u32 max_num_sg);
int rvt_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg,
		  int sg_nents, unsigned int *sg_offset);

#endif          /* DEF_RVTMR_H */