mirror of https://gitee.com/openkylin/linux.git
95 lines
3.5 KiB
C
95 lines
3.5 KiB
C
#ifndef DEF_RVTMR_H
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#define DEF_RVTMR_H
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/*
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* Copyright(c) 2016 Intel Corporation.
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*
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* BSD LICENSE
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* - Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include <rdma/rdma_vt.h>
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struct rvt_fmr {
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struct ib_fmr ibfmr;
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struct rvt_mregion mr; /* must be last */
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};
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struct rvt_mr {
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struct ib_mr ibmr;
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struct ib_umem *umem;
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struct rvt_mregion mr; /* must be last */
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};
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static inline struct rvt_fmr *to_ifmr(struct ib_fmr *ibfmr)
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{
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return container_of(ibfmr, struct rvt_fmr, ibfmr);
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}
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static inline struct rvt_mr *to_imr(struct ib_mr *ibmr)
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{
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return container_of(ibmr, struct rvt_mr, ibmr);
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}
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int rvt_driver_mr_init(struct rvt_dev_info *rdi);
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void rvt_mr_exit(struct rvt_dev_info *rdi);
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/* Mem Regions */
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struct ib_mr *rvt_get_dma_mr(struct ib_pd *pd, int acc);
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struct ib_mr *rvt_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
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u64 virt_addr, int mr_access_flags,
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struct ib_udata *udata);
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int rvt_dereg_mr(struct ib_mr *ibmr);
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struct ib_mr *rvt_alloc_mr(struct ib_pd *pd,
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enum ib_mr_type mr_type,
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u32 max_num_sg);
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int rvt_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg,
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int sg_nents, unsigned int *sg_offset);
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struct ib_fmr *rvt_alloc_fmr(struct ib_pd *pd, int mr_access_flags,
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struct ib_fmr_attr *fmr_attr);
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int rvt_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list,
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int list_len, u64 iova);
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int rvt_unmap_fmr(struct list_head *fmr_list);
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int rvt_dealloc_fmr(struct ib_fmr *ibfmr);
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#endif /* DEF_RVTMR_H */
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