1  /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR Linux-OpenIB) */
2  /*
3   * Copyright (c) 2009-2010 Chelsio, Inc. 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  #ifndef CXGB4_ABI_USER_H
34  #define CXGB4_ABI_USER_H
35  
36  #include <linux/types.h>
37  
38  #define C4IW_UVERBS_ABI_VERSION	3
39  
40  /*
41   * Make sure that all structs defined in this file remain laid out so
42   * that they pack the same way on 32-bit and 64-bit architectures (to
43   * avoid incompatibility between 32-bit userspace and 64-bit kernels).
44   * In particular do not use pointer types -- pass pointers in __aligned_u64
45   * instead.
46   */
47  
48  enum {
49  	C4IW_64B_CQE = (1 << 0)
50  };
51  
52  struct c4iw_create_cq {
53  	__u32 flags;
54  	__u32 reserved;
55  };
56  
57  struct c4iw_create_cq_resp {
58  	__aligned_u64 key;
59  	__aligned_u64 gts_key;
60  	__aligned_u64 memsize;
61  	__u32 cqid;
62  	__u32 size;
63  	__u32 qid_mask;
64  	__u32 flags;
65  };
66  
67  enum {
68  	C4IW_QPF_ONCHIP	= (1 << 0),
69  	C4IW_QPF_WRITE_W_IMM = (1 << 1)
70  };
71  
72  struct c4iw_create_qp_resp {
73  	__aligned_u64 ma_sync_key;
74  	__aligned_u64 sq_key;
75  	__aligned_u64 rq_key;
76  	__aligned_u64 sq_db_gts_key;
77  	__aligned_u64 rq_db_gts_key;
78  	__aligned_u64 sq_memsize;
79  	__aligned_u64 rq_memsize;
80  	__u32 sqid;
81  	__u32 rqid;
82  	__u32 sq_size;
83  	__u32 rq_size;
84  	__u32 qid_mask;
85  	__u32 flags;
86  };
87  
88  struct c4iw_create_srq_resp {
89  	__aligned_u64 srq_key;
90  	__aligned_u64 srq_db_gts_key;
91  	__aligned_u64 srq_memsize;
92  	__u32 srqid;
93  	__u32 srq_size;
94  	__u32 rqt_abs_idx;
95  	__u32 qid_mask;
96  	__u32 flags;
97  	__u32 reserved; /* explicit padding */
98  };
99  
100  enum {
101  	/* HW supports SRQ_LIMIT_REACHED event */
102  	T4_SRQ_LIMIT_SUPPORT = 1 << 0,
103  };
104  
105  struct c4iw_alloc_ucontext_resp {
106  	__aligned_u64 status_page_key;
107  	__u32 status_page_size;
108  	__u32 reserved; /* explicit padding (optional for i386) */
109  };
110  
111  struct c4iw_alloc_pd_resp {
112  	__u32 pdid;
113  };
114  
115  #endif /* CXGB4_ABI_USER_H */
116