diff options
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/bpf/fw.h')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/bpf/fw.h | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/bpf/fw.h b/drivers/net/ethernet/netronome/nfp/bpf/fw.h new file mode 100644 index 000000000000..cfcc7bcb2c67 --- /dev/null +++ b/drivers/net/ethernet/netronome/nfp/bpf/fw.h @@ -0,0 +1,157 @@ +/* + * Copyright (C) 2017 Netronome Systems, Inc. + * + * This software is dual licensed under the GNU General License Version 2, + * June 1991 as shown in the file COPYING in the top-level directory of this + * source tree or the BSD 2-Clause License provided below. You have the + * option to license this software under the complete terms of either license. + * + * The BSD 2-Clause License: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * 1. Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * 2. Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef NFP_BPF_FW_H +#define NFP_BPF_FW_H 1 + +#include <linux/bitops.h> +#include <linux/types.h> + +enum bpf_cap_tlv_type { + NFP_BPF_CAP_TYPE_FUNC = 1, + NFP_BPF_CAP_TYPE_ADJUST_HEAD = 2, + NFP_BPF_CAP_TYPE_MAPS = 3, +}; + +struct nfp_bpf_cap_tlv_func { + __le32 func_id; + __le32 func_addr; +}; + +struct nfp_bpf_cap_tlv_adjust_head { + __le32 flags; + __le32 off_min; + __le32 off_max; + __le32 guaranteed_sub; + __le32 guaranteed_add; +}; + +#define NFP_BPF_ADJUST_HEAD_NO_META BIT(0) + +struct nfp_bpf_cap_tlv_maps { + __le32 types; + __le32 max_maps; + __le32 max_elems; + __le32 max_key_sz; + __le32 max_val_sz; + __le32 max_elem_sz; +}; + +/* + * Types defined for map related control messages + */ +#define CMSG_MAP_ABI_VERSION 1 + +enum nfp_bpf_cmsg_type { + CMSG_TYPE_MAP_ALLOC = 1, + CMSG_TYPE_MAP_FREE = 2, + CMSG_TYPE_MAP_LOOKUP = 3, + CMSG_TYPE_MAP_UPDATE = 4, + CMSG_TYPE_MAP_DELETE = 5, + CMSG_TYPE_MAP_GETNEXT = 6, + CMSG_TYPE_MAP_GETFIRST = 7, + __CMSG_TYPE_MAP_MAX, +}; + +#define CMSG_TYPE_MAP_REPLY_BIT 7 +#define __CMSG_REPLY(req) (BIT(CMSG_TYPE_MAP_REPLY_BIT) | (req)) + +#define CMSG_MAP_KEY_LW 16 +#define CMSG_MAP_VALUE_LW 16 + +enum nfp_bpf_cmsg_status { + CMSG_RC_SUCCESS = 0, + CMSG_RC_ERR_MAP_FD = 1, + CMSG_RC_ERR_MAP_NOENT = 2, + CMSG_RC_ERR_MAP_ERR = 3, + CMSG_RC_ERR_MAP_PARSE = 4, + CMSG_RC_ERR_MAP_EXIST = 5, + CMSG_RC_ERR_MAP_NOMEM = 6, + CMSG_RC_ERR_MAP_E2BIG = 7, +}; + +struct cmsg_hdr { + u8 type; + u8 ver; + __be16 tag; +}; + +struct cmsg_reply_map_simple { + struct cmsg_hdr hdr; + __be32 rc; +}; + +struct cmsg_req_map_alloc_tbl { + struct cmsg_hdr hdr; + __be32 key_size; /* in bytes */ + __be32 value_size; /* in bytes */ + __be32 max_entries; + __be32 map_type; + __be32 map_flags; /* reserved */ +}; + +struct cmsg_reply_map_alloc_tbl { + struct cmsg_reply_map_simple reply_hdr; + __be32 tid; +}; + +struct cmsg_req_map_free_tbl { + struct cmsg_hdr hdr; + __be32 tid; +}; + +struct cmsg_reply_map_free_tbl { + struct cmsg_reply_map_simple reply_hdr; + __be32 count; +}; + +struct cmsg_key_value_pair { + __be32 key[CMSG_MAP_KEY_LW]; + __be32 value[CMSG_MAP_VALUE_LW]; +}; + +struct cmsg_req_map_op { + struct cmsg_hdr hdr; + __be32 tid; + __be32 count; + __be32 flags; + struct cmsg_key_value_pair elem[0]; +}; + +struct cmsg_reply_map_op { + struct cmsg_reply_map_simple reply_hdr; + __be32 count; + __be32 resv; + struct cmsg_key_value_pair elem[0]; +}; +#endif |