1 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR Linux-OpenIB) */
2 /* QLogic qedr NIC Driver
3 * Copyright (c) 2015-2016 QLogic Corporation
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:
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
15 * - Redistributions of source code must retain the above
16 * copyright notice, this list of conditions and the following
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.
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
33 #ifndef __QEDR_USER_H__
34 #define __QEDR_USER_H__
36 #include <linux/types.h>
38 #define QEDR_ABI_VERSION (8)
40 /* user kernel communication data structures. */
41 enum qedr_alloc_ucontext_flags {
42 QEDR_ALLOC_UCTX_RESERVED = 1 << 0,
43 QEDR_ALLOC_UCTX_DB_REC = 1 << 1
46 struct qedr_alloc_ucontext_req {
51 #define QEDR_LDPM_MAX_SIZE (8192)
52 #define QEDR_EDPM_TRANS_SIZE (64)
54 enum qedr_rdma_dpm_type {
55 QEDR_DPM_TYPE_NONE = 0,
56 QEDR_DPM_TYPE_ROCE_ENHANCED = 1 << 0,
57 QEDR_DPM_TYPE_ROCE_LEGACY = 1 << 1,
58 QEDR_DPM_TYPE_IWARP_LEGACY = 1 << 2,
59 QEDR_DPM_TYPE_RESERVED = 1 << 3,
60 QEDR_DPM_SIZES_SET = 1 << 4,
63 struct qedr_alloc_ucontext_resp {
70 __u32 sges_per_send_wr;
71 __u32 sges_per_recv_wr;
72 __u32 sges_per_srq_wr;
77 __u16 ldpm_limit_size;
82 struct qedr_alloc_pd_ureq {
86 struct qedr_alloc_pd_uresp {
91 struct qedr_create_cq_ureq {
96 struct qedr_create_cq_uresp {
100 __aligned_u64 db_rec_addr;
103 struct qedr_create_qp_ureq {
108 /* user space virtual address of SQ buffer */
109 __aligned_u64 sq_addr;
111 /* length of SQ buffer */
112 __aligned_u64 sq_len;
115 /* user space virtual address of RQ buffer */
116 __aligned_u64 rq_addr;
118 /* length of RQ buffer */
119 __aligned_u64 rq_len;
122 struct qedr_create_qp_uresp {
124 __u32 atomic_supported;
137 /* address of SQ doorbell recovery user entry */
138 __aligned_u64 sq_db_rec_addr;
140 /* address of RQ doorbell recovery user entry */
141 __aligned_u64 rq_db_rec_addr;
145 struct qedr_create_srq_ureq {
146 /* user space virtual address of producer pair */
147 __aligned_u64 prod_pair_addr;
149 /* user space virtual address of SRQ buffer */
150 __aligned_u64 srq_addr;
152 /* length of SRQ buffer */
153 __aligned_u64 srq_len;
156 struct qedr_create_srq_uresp {
162 /* doorbell recovery entry allocated and populated by userspace doorbelling
163 * entities and mapped to kernel. Kernel uses this to register doorbell
164 * information with doorbell drop recovery mechanism.
166 struct qedr_user_db_rec {
167 __aligned_u64 db_data; /* doorbell data */
170 #endif /* __QEDR_USER_H__ */