src/plugins/lacp/protocol.h

   1 /*
   2  * Copyright (c) 2017 Cisco and/or its affiliates.
   3  * Licensed under the Apache License, Version 2.0 (the "License");
   4  * you may not use this file except in compliance with the License.
   5  * You may obtain a copy of the License at:
   6  *
   7  *     http://www.apache.org/licenses/LICENSE-2.0
   8  *
   9  * Unless required by applicable law or agreed to in writing, software
  10  * distributed under the License is distributed on an "AS IS" BASIS,
  11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12  * See the License for the specific language governing permissions and
  13  * limitations under the License.
  14  */
  15
  16 #ifndef __included_lacp_protocol_h__
  17 #define __included_lacp_protocol_h__
  18
  19 #include <vnet/ethernet/ethernet.h>
  20 #include <vnet/bonding/node.h>
  21
  22 #define LACP_CHURN_DETECTION_TIME       60
  23 #define LACP_AGGREGATE_WAIT_TIME        2.0
  24
  25 #define LACP_SUBTYPE                    1
  26 #define LACP_ACTOR_LACP_VERSION         1
  27
  28 #define foreach_lacp_tlv        \
  29   _ (TERMINATOR_INFORMATION, 0) \
  30   _ (ACTOR_INFORMATION, 1)      \
  31   _ (PARTNER_INFORMATION , 2)   \
  32   _ (COLLECTOR_INFORMATION, 3)
  33
  34 typedef enum
  35 {
  36 #define _(f,n) LACP_##f = (n),
  37   foreach_lacp_tlv
  38 #undef _
  39 } lacp_tlv_t;
  40
  41 #define foreach_lacp_port  \
  42   _ (UNSELECTED, 0)        \
  43   _ (SELECTED, 1)          \
  44   _ (STANDBY, 2)
  45
  46 typedef enum
  47 {
  48 #define _(f,n) LACP_PORT_##f = (n),
  49   foreach_lacp_port
  50 #undef _
  51 } lacp_port_t;
  52
  53 /* Port state */
  54 #define foreach_lacp_state                   \
  55   _(0, LACP_ACTIVITY, "activity")            \
  56   _(1, LACP_TIMEOUT, "lacp timeout")         \
  57   _(2, AGGREGATION, "aggregation")           \
  58   _(3, SYNCHRONIZATION, "synchronization")   \
  59   _(4, COLLECTING, "collecting")            \
  60   _(5, DISTRIBUTING, "distributing")         \
  61   _(6, DEFAULTED, "defaulted")               \
  62   _(7, EXPIRED, "expired")
  63
  64 #define LACP_STEADY_STATE (LACP_STATE_SYNCHRONIZATION | \
  65                            LACP_STATE_COLLECTING |      \
  66                            LACP_STATE_DISTRIBUTING)
  67
  68 typedef enum
  69 {
  70 #define _(a, b, c) LACP_STATE_##b = (1 << a),
  71   foreach_lacp_state
  72 #undef _
  73 } lacp_state_t;
  74
  75 #define foreach_lacp_state_flag                         \
  76   _(0, LACP_STATE_LACP_ACTIVITY, "activity")            \
  77   _(1, LACP_STATE_LACP_TIMEOUT, "lacp timeout")         \
  78   _(2, LACP_STATE_AGGREGATION, "aggregation")           \
  79   _(3, LACP_STATE_SYNCHRONIZATION, "synchronization")   \
  80   _(4, LACP_STATE_COLLECTIING, "collecting")            \
  81   _(5, LACP_STATE_DISTRIBUTING, "distributing")         \
  82   _(6, LACP_STATE_DEFAULTED, "defaulted")               \
  83   _(7, LACP_STATE_EXPIRED, "expired")
  84
  85 typedef struct
  86 {
  87   u8 bit;
  88   char *str;
  89 } lacp_state_struct;
  90
  91 typedef struct
  92 {
  93   u8 bit;
  94   char *str;
  95 } lacp_event_struct;
  96
  97 #define LACP_MAX_TX_IN_SECOND           3
  98 #define LACP_DEFAULT_PORT_PRIORITY      0x00ff
  99 #define LACP_DEFAULT_SYSTEM_PRIORITY    0xffff
 100
 101 typedef CLIB_PACKED (struct
 102                      {
 103                      u8 tlv_type;
 104                      u8 tlv_length;
 105                      lacp_port_info_t port_info; u8 reserved[3];
 106                      }) lacp_actor_partner_t;
 107
 108 typedef CLIB_PACKED (struct
 109                      {
 110                      u8 tlv_type; u8 tlv_length; u16 max_delay;
 111                      u8 reserved[12];
 112                      }) lacp_collector_t;
 113
 114 typedef CLIB_PACKED (struct
 115                      {
 116                      u8 tlv_type; u8 tlv_length;
 117                      u8 pad[50];
 118                      }) lacp_terminator_t;
 119
 120 typedef CLIB_PACKED (struct
 121                      {
 122                      u8 subtype; u8 version_number;
 123                      lacp_actor_partner_t actor; lacp_actor_partner_t partner;
 124                      lacp_collector_t collector; lacp_terminator_t terminator;
 125                      }) lacp_pdu_t;
 126
 127 typedef CLIB_PACKED (struct
 128                      {
 129                      ethernet_header_t ethernet; lacp_pdu_t lacp;
 130                      }) ethernet_lacp_pdu_t;
 131
 132 #define MARKER_SUBTYPE                  2
 133 #define MARKER_PROTOCOL_VERSION         1
 134
 135 #define foreach_marker_tlv      \
 136   _ (TERMINATOR_INFORMATION, 0) \
 137   _ (INFORMATION, 1)            \
 138   _ (RESPONSE_INFORMATION , 2)
 139
 140 typedef enum
 141 {
 142 #define _(f,n) MARKER_##f = (n),
 143   foreach_marker_tlv
 144 #undef _
 145 } marker_tlv_t;
 146
 147 typedef CLIB_PACKED (struct
 148                      {
 149                      u8 tlv_type; u8 tlv_length;
 150                      u8 reserved[90];
 151                      }) marker_terminator_t;
 152
 153 typedef CLIB_PACKED (struct
 154                      {
 155                      u8 tlv_type;
 156                      u8 tlv_length;
 157                      u16 requester_port; u8 requester_system[6];
 158                      u32 requester_transaction_id; u8 pad[2];
 159                      }) marker_information_t;
 160
 161 typedef CLIB_PACKED (struct
 162                      {
 163                      u8 subtype;
 164                      u8 version_number;
 165                      marker_information_t marker_info;
 166                      marker_terminator_t terminator;
 167                      }) marker_pdu_t;
 168
 169 typedef CLIB_PACKED (struct
 170                      {
 171                      ethernet_header_t ethernet; marker_pdu_t marker;
 172                      }) ethernet_marker_pdu_t;
 173
 174 #endif /* __included_lacp_protocol_h__ */
 175
 176 /*
 177  * fd.io coding-style-patch-verification: ON
 178  *
 179  * Local Variables:
 180  * eval: (c-set-style "gnu")
 181  * End:
 182  */