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 53 struct rvt_mr { 54 struct ib_mr ibmr; 55 struct ib_umem *umem; 56 struct rvt_mregion mr; /* must be last */ 57 }; 58 59 static inline struct rvt_mr *to_imr(struct ib_mr *ibmr) 60 { 61 return container_of(ibmr, struct rvt_mr, ibmr); 62 } 63 64 int rvt_driver_mr_init(struct rvt_dev_info *rdi); 65 void rvt_mr_exit(struct rvt_dev_info *rdi); 66 67 /* Mem Regions */ 68 struct ib_mr *rvt_get_dma_mr(struct ib_pd *pd, int acc); 69 struct ib_mr *rvt_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, 70 u64 virt_addr, int mr_access_flags, 71 struct ib_udata *udata); 72 int rvt_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata); 73 struct ib_mr *rvt_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type, 74 u32 max_num_sg); 75 int rvt_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, 76 int sg_nents, unsigned int *sg_offset); 77 78 #endif /* DEF_RVTMR_H */ 79