2 * Copyright (C) 2017-2018 Netronome Systems, Inc.
4 * This software is dual licensed under the GNU General License Version 2,
5 * June 1991 as shown in the file COPYING in the top-level directory of this
6 * source tree or the BSD 2-Clause License provided below. You have the
7 * option to license this software under the complete terms of either license.
9 * The BSD 2-Clause License:
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
15 * 1. Redistributions of source code must retain the above
16 * copyright notice, this list of conditions and the following
19 * 2. 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
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30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
35 #define NFP_BPF_FW_H 1
37 #include <linux/bitops.h>
38 #include <linux/types.h>
40 /* Kernel's enum bpf_reg_type is not uABI so people may change it breaking
41 * our FW ABI. In that case we will do translation in the driver.
43 #define NFP_BPF_SCALAR_VALUE 1
44 #define NFP_BPF_MAP_VALUE 4
45 #define NFP_BPF_STACK 6
46 #define NFP_BPF_PACKET_DATA 8
48 enum bpf_cap_tlv_type {
49 NFP_BPF_CAP_TYPE_FUNC = 1,
50 NFP_BPF_CAP_TYPE_ADJUST_HEAD = 2,
51 NFP_BPF_CAP_TYPE_MAPS = 3,
52 NFP_BPF_CAP_TYPE_RANDOM = 4,
53 NFP_BPF_CAP_TYPE_QUEUE_SELECT = 5,
56 struct nfp_bpf_cap_tlv_func {
61 struct nfp_bpf_cap_tlv_adjust_head {
65 __le32 guaranteed_sub;
66 __le32 guaranteed_add;
69 #define NFP_BPF_ADJUST_HEAD_NO_META BIT(0)
71 struct nfp_bpf_cap_tlv_maps {
81 * Types defined for map related control messages
83 #define CMSG_MAP_ABI_VERSION 1
85 enum nfp_bpf_cmsg_type {
86 CMSG_TYPE_MAP_ALLOC = 1,
87 CMSG_TYPE_MAP_FREE = 2,
88 CMSG_TYPE_MAP_LOOKUP = 3,
89 CMSG_TYPE_MAP_UPDATE = 4,
90 CMSG_TYPE_MAP_DELETE = 5,
91 CMSG_TYPE_MAP_GETNEXT = 6,
92 CMSG_TYPE_MAP_GETFIRST = 7,
93 CMSG_TYPE_BPF_EVENT = 8,
97 #define CMSG_TYPE_MAP_REPLY_BIT 7
98 #define __CMSG_REPLY(req) (BIT(CMSG_TYPE_MAP_REPLY_BIT) | (req))
100 #define CMSG_MAP_KEY_LW 16
101 #define CMSG_MAP_VALUE_LW 16
103 enum nfp_bpf_cmsg_status {
105 CMSG_RC_ERR_MAP_FD = 1,
106 CMSG_RC_ERR_MAP_NOENT = 2,
107 CMSG_RC_ERR_MAP_ERR = 3,
108 CMSG_RC_ERR_MAP_PARSE = 4,
109 CMSG_RC_ERR_MAP_EXIST = 5,
110 CMSG_RC_ERR_MAP_NOMEM = 6,
111 CMSG_RC_ERR_MAP_E2BIG = 7,
120 struct cmsg_reply_map_simple {
125 struct cmsg_req_map_alloc_tbl {
127 __be32 key_size; /* in bytes */
128 __be32 value_size; /* in bytes */
131 __be32 map_flags; /* reserved */
134 struct cmsg_reply_map_alloc_tbl {
135 struct cmsg_reply_map_simple reply_hdr;
139 struct cmsg_req_map_free_tbl {
144 struct cmsg_reply_map_free_tbl {
145 struct cmsg_reply_map_simple reply_hdr;
149 struct cmsg_key_value_pair {
150 __be32 key[CMSG_MAP_KEY_LW];
151 __be32 value[CMSG_MAP_VALUE_LW];
154 struct cmsg_req_map_op {
159 struct cmsg_key_value_pair elem[0];
162 struct cmsg_reply_map_op {
163 struct cmsg_reply_map_simple reply_hdr;
166 struct cmsg_key_value_pair elem[0];
169 struct cmsg_bpf_event {