1/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
2/*
3 * Broadcom NetXtreme-E RoCE driver.
4 *
5 * Copyright (c) 2016 - 2017, Broadcom. All rights reserved. The term
6 * Broadcom refers to Broadcom Limited and/or its subsidiaries.
7 *
8 * This software is available to you under a choice of one of two
9 * licenses. You may choose to be licensed under the terms of the GNU
10 * General Public License (GPL) Version 2, available from the file
11 * COPYING in the main directory of this source tree, or the
12 * BSD license below:
13 *
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions
16 * are met:
17 *
18 * 1. Redistributions of source code must retain the above copyright
19 * notice, this list of conditions and the following disclaimer.
20 * 2. Redistributions in binary form must reproduce the above copyright
21 * notice, this list of conditions and the following disclaimer in
22 * the documentation and/or other materials provided with the
23 * distribution.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
26 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
27 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
32 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
33 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
34 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
35 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 *
37 * Description: Uverbs ABI header file
38 */
39
40#ifndef __BNXT_RE_UVERBS_ABI_H__
41#define __BNXT_RE_UVERBS_ABI_H__
42
43#include <linux/types.h>
44#include <rdma/ib_user_ioctl_cmds.h>
45
46#define BNXT_RE_ABI_VERSION 1
47
48#define BNXT_RE_CHIP_ID0_CHIP_NUM_SFT 0x00
49#define BNXT_RE_CHIP_ID0_CHIP_REV_SFT 0x10
50#define BNXT_RE_CHIP_ID0_CHIP_MET_SFT 0x18
51
52enum {
53 BNXT_RE_UCNTX_CMASK_HAVE_CCTX = 0x1ULL,
54 BNXT_RE_UCNTX_CMASK_HAVE_MODE = 0x02ULL,
55 BNXT_RE_UCNTX_CMASK_WC_DPI_ENABLED = 0x04ULL,
56 BNXT_RE_UCNTX_CMASK_DBR_PACING_ENABLED = 0x08ULL,
57 BNXT_RE_UCNTX_CMASK_POW2_DISABLED = 0x10ULL,
58 BNXT_RE_UCNTX_CMASK_MSN_TABLE_ENABLED = 0x40,
59 BNXT_RE_UCNTX_CMASK_QP_RATE_LIMIT_ENABLED = 0x80ULL,
60};
61
62enum bnxt_re_wqe_mode {
63 BNXT_QPLIB_WQE_MODE_STATIC = 0x00,
64 BNXT_QPLIB_WQE_MODE_VARIABLE = 0x01,
65 BNXT_QPLIB_WQE_MODE_INVALID = 0x02,
66};
67
68enum {
69 BNXT_RE_COMP_MASK_REQ_UCNTX_POW2_SUPPORT = 0x01,
70 BNXT_RE_COMP_MASK_REQ_UCNTX_VAR_WQE_SUPPORT = 0x02,
71};
72
73struct bnxt_re_uctx_req {
74 __aligned_u64 comp_mask;
75};
76
77struct bnxt_re_uctx_resp {
78 __u32 dev_id;
79 __u32 max_qp;
80 __u32 pg_size;
81 __u32 cqe_sz;
82 __u32 max_cqd;
83 __u32 rsvd;
84 __aligned_u64 comp_mask;
85 __u32 chip_id0;
86 __u32 chip_id1;
87 __u32 mode;
88 __u32 rsvd1; /* padding */
89};
90
91/*
92 * This struct is placed after the ib_uverbs_alloc_pd_resp struct, which is
93 * not 8 byted aligned. To avoid undesired padding in various cases we have to
94 * set this struct to packed.
95 */
96struct bnxt_re_pd_resp {
97 __u32 pdid;
98 __u32 dpi;
99 __u64 dbr;
100} __attribute__((packed, aligned(4)));
101
102struct bnxt_re_cq_req {
103 __aligned_u64 cq_va;
104 __aligned_u64 cq_handle;
105 __aligned_u64 comp_mask;
106};
107
108enum bnxt_re_resp_cq_mask {
109 BNXT_RE_CQ_TOGGLE_PAGE_SUPPORT = 0x1,
110};
111
112enum bnxt_re_req_cq_mask {
113 BNXT_RE_CQ_FIXED_NUM_CQE_ENABLE = 0x1,
114};
115
116struct bnxt_re_cq_resp {
117 __u32 cqid;
118 __u32 tail;
119 __u32 phase;
120 __u32 rsvd;
121 __aligned_u64 comp_mask;
122};
123
124struct bnxt_re_resize_cq_req {
125 __aligned_u64 cq_va;
126};
127
128enum bnxt_re_qp_mask {
129 BNXT_RE_QP_REQ_MASK_FIXED_QUE_ATTR = 0x1,
130};
131
132struct bnxt_re_qp_req {
133 __aligned_u64 qpsva;
134 __aligned_u64 qprva;
135 __aligned_u64 qp_handle;
136 __aligned_u64 comp_mask;
137 __u32 sq_slots;
138 __u32 sq_npsn;
139};
140
141enum bnxt_re_create_qp_attrs {
142 BNXT_RE_CREATE_QP_ATTR_DBR_HANDLE = UVERBS_ID_DRIVER_NS_WITH_UHW,
143};
144
145struct bnxt_re_qp_resp {
146 __u32 qpid;
147 __u32 rsvd;
148};
149
150struct bnxt_re_srq_req {
151 __aligned_u64 srqva;
152 __aligned_u64 srq_handle;
153};
154
155enum bnxt_re_srq_mask {
156 BNXT_RE_SRQ_TOGGLE_PAGE_SUPPORT = 0x1,
157};
158
159struct bnxt_re_srq_resp {
160 __u32 srqid;
161 __u32 rsvd; /* padding */
162 __aligned_u64 comp_mask;
163};
164
165enum bnxt_re_shpg_offt {
166 BNXT_RE_BEG_RESV_OFFT = 0x00,
167 BNXT_RE_AVID_OFFT = 0x10,
168 BNXT_RE_AVID_SIZE = 0x04,
169 BNXT_RE_END_RESV_OFFT = 0xFF0
170};
171
172enum bnxt_re_objects {
173 BNXT_RE_OBJECT_ALLOC_PAGE = (1U << UVERBS_ID_NS_SHIFT),
174 BNXT_RE_OBJECT_NOTIFY_DRV,
175 BNXT_RE_OBJECT_GET_TOGGLE_MEM,
176 BNXT_RE_OBJECT_DBR,
177 BNXT_RE_OBJECT_DEFAULT_DBR,
178};
179
180enum bnxt_re_alloc_page_type {
181 BNXT_RE_ALLOC_WC_PAGE = 0,
182 BNXT_RE_ALLOC_DBR_BAR_PAGE,
183 BNXT_RE_ALLOC_DBR_PAGE,
184};
185
186enum bnxt_re_var_alloc_page_attrs {
187 BNXT_RE_ALLOC_PAGE_HANDLE = (1U << UVERBS_ID_NS_SHIFT),
188 BNXT_RE_ALLOC_PAGE_TYPE,
189 BNXT_RE_ALLOC_PAGE_DPI,
190 BNXT_RE_ALLOC_PAGE_MMAP_OFFSET,
191 BNXT_RE_ALLOC_PAGE_MMAP_LENGTH,
192};
193
194enum bnxt_re_alloc_page_attrs {
195 BNXT_RE_DESTROY_PAGE_HANDLE = (1U << UVERBS_ID_NS_SHIFT),
196};
197
198enum bnxt_re_alloc_page_methods {
199 BNXT_RE_METHOD_ALLOC_PAGE = (1U << UVERBS_ID_NS_SHIFT),
200 BNXT_RE_METHOD_DESTROY_PAGE,
201};
202
203enum bnxt_re_notify_drv_methods {
204 BNXT_RE_METHOD_NOTIFY_DRV = (1U << UVERBS_ID_NS_SHIFT),
205};
206
207/* Toggle mem */
208
209enum bnxt_re_get_toggle_mem_type {
210 BNXT_RE_CQ_TOGGLE_MEM = 0,
211 BNXT_RE_SRQ_TOGGLE_MEM,
212};
213
214enum bnxt_re_var_toggle_mem_attrs {
215 BNXT_RE_TOGGLE_MEM_HANDLE = (1U << UVERBS_ID_NS_SHIFT),
216 BNXT_RE_TOGGLE_MEM_TYPE,
217 BNXT_RE_TOGGLE_MEM_RES_ID,
218 BNXT_RE_TOGGLE_MEM_MMAP_PAGE,
219 BNXT_RE_TOGGLE_MEM_MMAP_OFFSET,
220 BNXT_RE_TOGGLE_MEM_MMAP_LENGTH,
221};
222
223enum bnxt_re_toggle_mem_attrs {
224 BNXT_RE_RELEASE_TOGGLE_MEM_HANDLE = (1U << UVERBS_ID_NS_SHIFT),
225};
226
227enum bnxt_re_toggle_mem_methods {
228 BNXT_RE_METHOD_GET_TOGGLE_MEM = (1U << UVERBS_ID_NS_SHIFT),
229 BNXT_RE_METHOD_RELEASE_TOGGLE_MEM,
230};
231
232struct bnxt_re_packet_pacing_caps {
233 __u32 qp_rate_limit_min;
234 __u32 qp_rate_limit_max; /* In kbps */
235 /* Corresponding bit will be set if qp type from
236 * 'enum ib_qp_type' is supported, e.g.
237 * supported_qpts |= 1 << IB_QPT_RC
238 */
239 __u32 supported_qpts;
240 __u32 reserved;
241};
242
243struct bnxt_re_query_device_ex_resp {
244 struct bnxt_re_packet_pacing_caps packet_pacing_caps;
245};
246
247struct bnxt_re_db_region {
248 __u32 dpi;
249 __u32 reserved;
250 __aligned_u64 umdbr;
251};
252
253enum bnxt_re_obj_dbr_alloc_attrs {
254 BNXT_RE_ALLOC_DBR_HANDLE = (1U << UVERBS_ID_NS_SHIFT),
255 BNXT_RE_ALLOC_DBR_ATTR,
256 BNXT_RE_ALLOC_DBR_OFFSET,
257};
258
259enum bnxt_re_obj_dbr_free_attrs {
260 BNXT_RE_FREE_DBR_HANDLE = (1U << UVERBS_ID_NS_SHIFT),
261};
262
263enum bnxt_re_obj_default_dbr_attrs {
264 BNXT_RE_DEFAULT_DBR_ATTR = (1U << UVERBS_ID_NS_SHIFT),
265};
266
267enum bnxt_re_obj_dpi_methods {
268 BNXT_RE_METHOD_DBR_ALLOC = (1U << UVERBS_ID_NS_SHIFT),
269 BNXT_RE_METHOD_DBR_FREE,
270 BNXT_RE_METHOD_GET_DEFAULT_DBR,
271};
272
273#endif /* __BNXT_RE_UVERBS_ABI_H__*/