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      1 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR Linux-OpenIB) */
      2 /*
      3  * Copyright (c) 2005 Topspin Communications.  All rights reserved.
      4  * Copyright (c) 2005, 2006 Cisco Systems.  All rights reserved.
      5  *
      6  * This software is available to you under a choice of one of two
      7  * licenses.  You may choose to be licensed under the terms of the GNU
      8  * General Public License (GPL) Version 2, available from the file
      9  * COPYING in the main directory of this source tree, or the
     10  * OpenIB.org BSD license below:
     11  *
     12  *     Redistribution and use in source and binary forms, with or
     13  *     without modification, are permitted provided that the following
     14  *     conditions are met:
     15  *
     16  *      - Redistributions of source code must retain the above
     17  *        copyright notice, this list of conditions and the following
     18  *        disclaimer.
     19  *
     20  *      - Redistributions in binary form must reproduce the above
     21  *        copyright notice, this list of conditions and the following
     22  *        disclaimer in the documentation and/or other materials
     23  *        provided with the distribution.
     24  *
     25  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     26  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     27  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
     28  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
     29  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
     30  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
     31  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
     32  * SOFTWARE.
     33  */
     34 
     35 #ifndef MTHCA_ABI_USER_H
     36 #define MTHCA_ABI_USER_H
     37 
     38 #include <linux/types.h>
     39 
     40 /*
     41  * Increment this value if any changes that break userspace ABI
     42  * compatibility are made.
     43  */
     44 #define MTHCA_UVERBS_ABI_VERSION	1
     45 
     46 /*
     47  * Make sure that all structs defined in this file remain laid out so
     48  * that they pack the same way on 32-bit and 64-bit architectures (to
     49  * avoid incompatibility between 32-bit userspace and 64-bit kernels).
     50  * In particular do not use pointer types -- pass pointers in __u64
     51  * instead.
     52  */
     53 struct mthca_alloc_ucontext_resp {
     54 	__u32 qp_tab_size;
     55 	__u32 uarc_size;
     56 };
     57 
     58 struct mthca_alloc_pd_resp {
     59 	__u32 pdn;
     60 	__u32 reserved;
     61 };
     62 
     63 /*
     64  * Mark the memory region with a DMA attribute that causes
     65  * in-flight DMA to be flushed when the region is written to:
     66  */
     67 #define MTHCA_MR_DMASYNC	0x1
     68 
     69 struct mthca_reg_mr {
     70 	__u32 mr_attrs;
     71 	__u32 reserved;
     72 };
     73 
     74 struct mthca_create_cq {
     75 	__u32 lkey;
     76 	__u32 pdn;
     77 	__aligned_u64 arm_db_page;
     78 	__aligned_u64 set_db_page;
     79 	__u32 arm_db_index;
     80 	__u32 set_db_index;
     81 };
     82 
     83 struct mthca_create_cq_resp {
     84 	__u32 cqn;
     85 	__u32 reserved;
     86 };
     87 
     88 struct mthca_resize_cq {
     89 	__u32 lkey;
     90 	__u32 reserved;
     91 };
     92 
     93 struct mthca_create_srq {
     94 	__u32 lkey;
     95 	__u32 db_index;
     96 	__aligned_u64 db_page;
     97 };
     98 
     99 struct mthca_create_srq_resp {
    100 	__u32 srqn;
    101 	__u32 reserved;
    102 };
    103 
    104 struct mthca_create_qp {
    105 	__u32 lkey;
    106 	__u32 reserved;
    107 	__aligned_u64 sq_db_page;
    108 	__aligned_u64 rq_db_page;
    109 	__u32 sq_db_index;
    110 	__u32 rq_db_index;
    111 };
    112 #endif /* MTHCA_ABI_USER_H */
    113