hicn - Hybrid Information-Centric Networking

diff options

Diffstat (limited to 'libtransport/src/protocols/rtc/rtc_consts.h')

-rw-r--r--

libtransport/src/protocols/rtc/rtc_consts.h

1 files changed, 4 insertions, 3 deletions

/* *------------------------------------------------------------------ * Copyright (c) 2017 Cisco and/or its affiliates. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. *------------------------------------------------------------------ */ #ifndef _MEMIF_H_ #define _MEMIF_H_ #ifndef MEMIF_CACHELINE_SIZE #define MEMIF_CACHELINE_SIZE 64 #endif #define MEMIF_COOKIE 0x3E31F20 #define MEMIF_VERSION_MAJOR 2 #define MEMIF_VERSION_MINOR 0 #define MEMIF_VERSION ((MEMIF_VERSION_MAJOR << 8) | MEMIF_VERSION_MINOR) /* * Type definitions */ typedef enum memif_msg_type { MEMIF_MSG_TYPE_NONE = 0, MEMIF_MSG_TYPE_ACK = 1, MEMIF_MSG_TYPE_HELLO = 2, MEMIF_MSG_TYPE_INIT = 3, MEMIF_MSG_TYPE_ADD_REGION = 4, MEMIF_MSG_TYPE_ADD_RING = 5, MEMIF_MSG_TYPE_CONNECT = 6, MEMIF_MSG_TYPE_CONNECTED = 7, MEMIF_MSG_TYPE_DISCONNECT = 8, } memif_msg_type_t; typedef enum { MEMIF_RING_S2M = 0, MEMIF_RING_M2S = 1 } memif_ring_type_t; typedef enum { MEMIF_INTERFACE_MODE_ETHERNET = 0, MEMIF_INTERFACE_MODE_IP = 1, MEMIF_INTERFACE_MODE_PUNT_INJECT = 2, } memif_interface_mode_t; typedef uint16_t memif_region_index_t; typedef uint32_t memif_region_offset_t; typedef uint64_t memif_region_size_t; typedef uint16_t memif_ring_index_t; typedef uint32_t memif_interface_id_t; typedef uint16_t memif_version_t; typedef uint8_t memif_log2_ring_size_t; /* * Socket messages */ typedef struct __attribute__ ((packed)) { uint8_t name[32]; memif_version_t min_version; memif_version_t max_version; memif_region_index_t max_region; memif_ring_index_t max_m2s_ring; memif_ring_index_t max_s2m_ring; memif_log2_ring_size_t max_log2_ring_size; } memif_msg_hello_t; typedef struct __attribute__ ((packed)) { memif_version_t version; memif_interface_id_t id; memif_interface_mode_t mode:8; uint8_t secret[24]; uint8_t name[32]; } memif_msg_init_t; typedef struct __attribute__ ((packed)) { memif_region_index_t index; memif_region_size_t size; } memif_msg_add_region_t; typedef struct __attribute__ ((packed)) { uint16_t flags; #define MEMIF_MSG_ADD_RING_FLAG_S2M (1 << 0) memif_ring_index_t index; memif_region_index_t region; memif_region_offset_t offset; memif_log2_ring_size_t log2_ring_size; uint16_t private_hdr_size; /* used for private metadata */ } memif_msg_add_ring_t; typedef struct __attribute__ ((packed)) { uint8_t if_name[32]; } memif_msg_connect_t; typedef struct __attribute__ ((packed)) { uint8_t if_name[32]; } memif_msg_connected_t; typedef struct __attribute__ ((packed)) { uint32_t code; uint8_t string[96]; } memif_msg_disconnect_t; typedef struct __attribute__ ((packed, aligned (128))) { memif_msg_type_t type:16; union { memif_msg_hello_t hello; memif_msg_init_t init; memif_msg_add_region_t add_region; memif_msg_add_ring_t add_ring; memif_msg_connect_t connect; memif_msg_connected_t connected; memif_msg_disconnect_t disconnect; }; } memif_msg_t; _Static_assert (sizeof (memif_msg_t) == 128, "Size of memif_msg_t must be 128"); /* * Ring and Descriptor Layout */ typedef struct __attribute__ ((packed)) { uint16_t flags; #define MEMIF_DESC_FLAG_NEXT (1 << 0) memif_region_index_t region; uint32_t length; memif_region_offset_t offset; uint32_t metadata; } memif_desc_t; _Static_assert (sizeof (memif_desc_t) == 16, "Size of memif_dsct_t must be 16 bytes"); #define MEMIF_CACHELINE_ALIGN_MARK(mark) \ uint8_t mark[0] __attribute__((aligned(MEMIF_CACHELINE_SIZE))) typedef struct { MEMIF_CACHELINE_ALIGN_MARK (cacheline0); uint32_t cookie; uint16_t flags; #define MEMIF_RING_FLAG_MASK_INT 1 volatile uint16_t head; MEMIF_CACHELINE_ALIGN_MARK (cacheline1); volatile uint16_t tail; MEMIF_CACHELINE_ALIGN_MARK (cacheline2); memif_desc_t desc[0]; } memif_ring_t; #endif /* _MEMIF_H_ */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */


context:
space:
mode: