include/uapi/rdma/cxgb4-abi.h

   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 */