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> 52 struct rvt_fmr { 53 struct ib_fmr ibfmr; 54 struct rvt_mregion mr; /* must be last */ 55 }; 56 57 struct rvt_mr { 58 struct ib_mr ibmr; 59 struct ib_umem *umem; 60 struct rvt_mregion mr; /* must be last */ 61 }; 62 63 static inline struct rvt_fmr *to_ifmr(struct ib_fmr *ibfmr) 64 { 65 return container_of(ibfmr, struct rvt_fmr, ibfmr); 66 } 67 68 static inline struct rvt_mr *to_imr(struct ib_mr *ibmr) 69 { 70 return container_of(ibmr, struct rvt_mr, ibmr); 71 } 72 73 int rvt_driver_mr_init(struct rvt_dev_info *rdi); 74 void rvt_mr_exit(struct rvt_dev_info *rdi); 75 76 /* Mem Regions */ 77 struct ib_mr *rvt_get_dma_mr(struct ib_pd *pd, int acc); 78 struct 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); 81 int rvt_dereg_mr(struct ib_mr *ibmr); 82 struct ib_mr *rvt_alloc_mr(struct ib_pd *pd, 83 enum ib_mr_type mr_type, 84 u32 max_num_sg); 85 int rvt_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, 86 int sg_nents, unsigned int *sg_offset); 87 struct ib_fmr *rvt_alloc_fmr(struct ib_pd *pd, int mr_access_flags, 88 struct ib_fmr_attr *fmr_attr); 89 int rvt_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list, 90 int list_len, u64 iova); 91 int rvt_unmap_fmr(struct list_head *fmr_list); 92 int rvt_dealloc_fmr(struct ib_fmr *ibfmr); 93 94 #endif /* DEF_RVTMR_H */ 95