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