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1 | /* |
2 | * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved. | |
3 | * | |
4 | * This program is free software; you may redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation; version 2 of the License. | |
7 | * | |
8 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
9 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
10 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
11 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
12 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
13 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
14 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
15 | * SOFTWARE. | |
16 | * | |
17 | */ | |
18 | ||
19 | ||
20 | #ifndef USNIC_ABI_H | |
21 | #define USNIC_ABI_H | |
22 | ||
23 | /* ABI between userspace and kernel */ | |
6dcebe61 | 24 | #define USNIC_UVERBS_ABI_VERSION 4 |
e3cf00d0 UM |
25 | |
26 | #define USNIC_QP_GRP_MAX_WQS 8 | |
27 | #define USNIC_QP_GRP_MAX_RQS 8 | |
28 | #define USNIC_QP_GRP_MAX_CQS 16 | |
29 | ||
30 | enum usnic_transport_type { | |
31 | USNIC_TRANSPORT_UNKNOWN = 0, | |
32 | USNIC_TRANSPORT_ROCE_CUSTOM = 1, | |
b85caf47 UM |
33 | USNIC_TRANSPORT_IPV4_UDP = 2, |
34 | USNIC_TRANSPORT_MAX = 3, | |
e3cf00d0 UM |
35 | }; |
36 | ||
301a0dd6 UM |
37 | struct usnic_transport_spec { |
38 | enum usnic_transport_type trans_type; | |
39 | union { | |
40 | struct { | |
41 | uint16_t port_num; | |
42 | } usnic_roce; | |
b85caf47 UM |
43 | struct { |
44 | uint32_t sock_fd; | |
45 | } udp; | |
301a0dd6 UM |
46 | }; |
47 | }; | |
48 | ||
b85caf47 UM |
49 | struct usnic_ib_create_qp_cmd { |
50 | struct usnic_transport_spec spec; | |
51 | }; | |
52 | ||
e3cf00d0 UM |
53 | /*TODO: Future - usnic_modify_qp needs to pass in generic filters */ |
54 | struct usnic_ib_create_qp_resp { | |
55 | u32 vfid; | |
56 | u32 qp_grp_id; | |
57 | u64 bar_bus_addr; | |
58 | u32 bar_len; | |
59 | /* | |
60 | * WQ, RQ, CQ are explicity specified bc exposing a generic resources inteface | |
61 | * expands the scope of ABI to many files. | |
62 | */ | |
63 | u32 wq_cnt; | |
64 | u32 rq_cnt; | |
65 | u32 cq_cnt; | |
66 | u32 wq_idx[USNIC_QP_GRP_MAX_WQS]; | |
67 | u32 rq_idx[USNIC_QP_GRP_MAX_RQS]; | |
68 | u32 cq_idx[USNIC_QP_GRP_MAX_CQS]; | |
69 | u32 transport; | |
70 | u32 reserved[9]; | |
71 | }; | |
72 | ||
73 | #endif /* USNIC_ABI_H */ |