uapi/rdma/cxgb4-abi.h

0001 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR Linux-OpenIB) */
0002 /*
0003  * Copyright (c) 2009-2010 Chelsio, Inc. All rights reserved.
0004  *
0005  * This software is available to you under a choice of one of two
0006  * licenses.  You may choose to be licensed under the terms of the GNU
0007  * General Public License (GPL) Version 2, available from the file
0008  * COPYING in the main directory of this source tree, or the
0009  * OpenIB.org BSD license below:
0010  *
0011  *     Redistribution and use in source and binary forms, with or
0012  *     without modification, are permitted provided that the following
0013  *     conditions are met:
0014  *
0015  *      - Redistributions of source code must retain the above
0016  *        copyright notice, this list of conditions and the following
0017  *        disclaimer.
0018  *
0019  *      - Redistributions in binary form must reproduce the above
0020  *        copyright notice, this list of conditions and the following
0021  *        disclaimer in the documentation and/or other materials
0022  *        provided with the distribution.
0023  *
0024  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
0025  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
0026  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
0027  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
0028  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
0029  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
0030  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
0031  * SOFTWARE.
0032  */
0033 #ifndef CXGB4_ABI_USER_H
0034 #define CXGB4_ABI_USER_H
0035
0036 #include <linux/types.h>
0037
0038 #define C4IW_UVERBS_ABI_VERSION 3
0039
0040 /*
0041  * Make sure that all structs defined in this file remain laid out so
0042  * that they pack the same way on 32-bit and 64-bit architectures (to
0043  * avoid incompatibility between 32-bit userspace and 64-bit kernels).
0044  * In particular do not use pointer types -- pass pointers in __aligned_u64
0045  * instead.
0046  */
0047
0048 enum {
0049     C4IW_64B_CQE = (1 << 0)
0050 };
0051
0052 struct c4iw_create_cq {
0053     __u32 flags;
0054     __u32 reserved;
0055 };
0056
0057 struct c4iw_create_cq_resp {
0058     __aligned_u64 key;
0059     __aligned_u64 gts_key;
0060     __aligned_u64 memsize;
0061     __u32 cqid;
0062     __u32 size;
0063     __u32 qid_mask;
0064     __u32 flags;
0065 };
0066
0067 enum {
0068     C4IW_QPF_ONCHIP = (1 << 0),
0069     C4IW_QPF_WRITE_W_IMM = (1 << 1)
0070 };
0071
0072 struct c4iw_create_qp_resp {
0073     __aligned_u64 ma_sync_key;
0074     __aligned_u64 sq_key;
0075     __aligned_u64 rq_key;
0076     __aligned_u64 sq_db_gts_key;
0077     __aligned_u64 rq_db_gts_key;
0078     __aligned_u64 sq_memsize;
0079     __aligned_u64 rq_memsize;
0080     __u32 sqid;
0081     __u32 rqid;
0082     __u32 sq_size;
0083     __u32 rq_size;
0084     __u32 qid_mask;
0085     __u32 flags;
0086 };
0087
0088 struct c4iw_create_srq_resp {
0089     __aligned_u64 srq_key;
0090     __aligned_u64 srq_db_gts_key;
0091     __aligned_u64 srq_memsize;
0092     __u32 srqid;
0093     __u32 srq_size;
0094     __u32 rqt_abs_idx;
0095     __u32 qid_mask;
0096     __u32 flags;
0097     __u32 reserved; /* explicit padding */
0098 };
0099
0100 enum {
0101     /* HW supports SRQ_LIMIT_REACHED event */
0102     T4_SRQ_LIMIT_SUPPORT = 1 << 0,
0103 };
0104
0105 struct c4iw_alloc_ucontext_resp {
0106     __aligned_u64 status_page_key;
0107     __u32 status_page_size;
0108     __u32 reserved; /* explicit padding (optional for i386) */
0109 };
0110
0111 struct c4iw_alloc_pd_resp {
0112     __u32 pdid;
0113 };
0114
0115 #endif /* CXGB4_ABI_USER_H */