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authorFlorin Coras <fcoras@cisco.com>2020-02-13 19:24:58 +0000
committerDave Barach <openvpp@barachs.net>2020-02-14 21:36:25 +0000
commit3f78bbb8e875f3fccbcd167289ba2d307cb86263 (patch)
treeb314ac3ae1eeb3ef4e332624fed77750dbdd520a /src/vnet/srp
parent774b5dbe7f2f69eabb38fee300f32dc7ee687e7f (diff)
tcp: reset fin-wait-2 timeout connections
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Id931f3f308a01788d222d0d62f26f5c579321c6a
Diffstat (limited to 'src/vnet/srp')
0 files changed, 0 insertions, 0 deletions
' href='#n152'>152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 
/*
 *------------------------------------------------------------------
 * 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:
 */