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:
7 * http://www.apache.org/licenses/LICENSE-2.0
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.
15 #ifndef __included_vnet_bonding_node_h__
16 #define __included_vnet_bonding_node_h__
18 #include <vlib/vlib.h>
19 #include <vlib/unix/unix.h>
20 #include <vppinfra/format.h>
21 #include <vppinfra/hash.h>
22 #include <vnet/ethernet/ethernet.h>
23 #include <vnet/interface.h>
25 #define LACP_FAST_PERIODIC_TIMER 1.0
26 #define LACP_SHORT_TIMOUT_TIME (LACP_FAST_PERIODIC_TIMER * 3)
27 #define LACP_SLOW_PERIODIC_TIMER 30.0
28 #define LACP_LONG_TIMOUT_TIME (LACP_SLOW_PERIODIC_TIMER * 3)
31 #define MIN(x,y) (((x)<(y))?(x):(y))
34 #define BOND_MODULO_SHORTCUT(a) \
35 (((a) == 2) || ((a) == 4) || ((a) == 8) || ((a) == 16))
37 #define foreach_bond_mode \
38 _ (1, ROUND_ROBIN, "round-robin") \
39 _ (2, ACTIVE_BACKUP, "active-backup") \
41 _ (4, BROADCAST, "broadcast") \
46 #define _(v, f, s) BOND_MODE_##f = v,
51 /* configurable load-balances */
52 #define foreach_bond_lb \
53 _ (2, L23, "l23", l23) \
54 _ (1, l34 , "l34", l34) \
57 /* load-balance functions implemented in bond-output */
58 #define foreach_bond_lb_algo \
60 _ (1, l34 , "l34", l34) \
61 _ (2, L23, "l23", l23) \
62 _ (3, RR, "round-robin", round_robin) \
63 _ (4, BC, "broadcast", broadcast) \
64 _ (5, AB, "active-backup", active_backup)
68 #define _(v, f, s, p) BOND_LB_##f = v,
71 } bond_load_balance_t;
83 } bond_create_if_args_t;
87 /* slave's sw_if_index */
89 /* bond's sw_if_index */
96 } bond_enslave_args_t;
104 } bond_detach_slave_args_t;
106 /** BOND interface details struct */
110 u8 interface_name[64];
115 } bond_interface_details_t;
117 /** slave interface details struct */
121 u8 interface_name[64];
125 } slave_interface_details_t;
127 typedef CLIB_PACKED (struct
131 u16 key; u16 port_priority; u16 port_number;
137 vlib_frame_t **frame;
139 } bond_if_per_thread_t;
147 /* the last slave index for the rr lb */
148 u32 lb_rr_last_index;
154 /* Configured slaves */
157 /* Slaves that are in DISTRIBUTING state */
160 /* rapidly find an active slave */
161 uword *active_slave_by_sw_if_index;
163 lacp_port_info_t partner;
164 lacp_port_info_t actor;
165 u8 individual_aggregator;
168 uword *port_number_bitmap;
172 clib_spinlock_t lockp;
173 bond_if_per_thread_t *per_thread_info;
178 u8 persistent_hw_address[6];
180 /* neighbor's vlib software interface index */
183 /* Neighbor time-to-live (usually 3s) */
186 /* 1 = interface is configured with long timeout (60s) */
189 /* 1 = debug is on; 0 = debug is off */
192 /* tx packet template id for this neighbor */
193 u8 packet_template_index;
195 /* Info we actually keep about each neighbor */
197 /* Jenkins hash optimization: avoid tlv scan, send short keepalive msg */
198 u8 last_packet_signature_valid;
199 uword last_packet_signature;
201 /* last received lacp packet, for the J-hash optimization */
204 /* last marker packet */
207 /* neighbor vlib hw_if_index */
210 /* actor does not initiate the protocol exchange */
213 /* Partner port information */
214 lacp_port_info_t partner;
215 lacp_port_info_t partner_admin;;
217 /* Partner port information */
218 lacp_port_info_t actor;
219 lacp_port_info_t actor_admin;
221 /* Need To Transmit flag */
224 /* Link has been established and Aggregate Port is operable */
227 /* Initialization or reinitialization of the lacp protocol entity */
230 /* Aggregation Port is operating the lacp */
233 /* MUX to indicate to the Selection Logic wait_while_timer expired */
236 /* Selection Logic indicates al Aggregation Ports attached */
239 /* Selection Logic selected an Aggregator */
242 /* RX machine indicates an Aggregation Port in PORT_DISABLED state */
245 /* timer used to detect whether received protocol information has expired */
246 f64 current_while_timer;
248 /* timer used to detect actor churn states */
249 f64 actor_churn_timer;
251 /* time last lacpdu was sent */
252 f64 last_lacpdu_time;
254 /* timer used to generate periodic transmission */
257 /* timer used to detect partner churn states */
258 f64 partner_churn_timer;
260 /* provides hysteresis before performing an aggregation change */
261 f64 wait_while_timer;
263 /* Implemention variables, not in the spec */
269 /* actor admin key */
274 u32 bif_dev_instance;
281 clib_spinlock_t lockp;
284 typedef void (*lacp_enable_disable_func) (vlib_main_t * vm, bond_if_t * bif,
285 slave_if_t * sif, u8 enable);
289 /* pool of bonding interfaces */
290 bond_if_t *interfaces;
292 /* pool of lacp neighbors */
293 slave_if_t *neighbors;
295 /* rapidly find a bond by vlib software interface index */
296 uword *bond_by_sw_if_index;
298 /* convenience variables */
299 vlib_main_t *vlib_main;
300 vnet_main_t *vnet_main;
302 /* lacp plugin is loaded */
303 u8 lacp_plugin_loaded;
305 lacp_enable_disable_func lacp_enable_disable;
307 uword *slave_by_sw_if_index;
310 /* bond packet trace capture */
313 ethernet_header_t ethernet;
315 u32 bond_sw_if_index;
316 } bond_packet_trace_t;
318 typedef u32 (*load_balance_func) (vlib_main_t * vm,
319 vlib_node_runtime_t * node, bond_if_t * bif,
320 vlib_buffer_t * b0, uword slave_count);
324 load_balance_func load_balance;
325 } bond_load_balance_func_t;
327 extern vlib_node_registration_t bond_input_node;
328 extern vnet_device_class_t bond_dev_class;
329 extern bond_main_t bond_main;
331 void bond_disable_collecting_distributing (vlib_main_t * vm,
333 void bond_enable_collecting_distributing (vlib_main_t * vm, slave_if_t * sif);
334 u8 *format_bond_interface_name (u8 * s, va_list * args);
336 void bond_create_if (vlib_main_t * vm, bond_create_if_args_t * args);
337 int bond_delete_if (vlib_main_t * vm, u32 sw_if_index);
338 void bond_enslave (vlib_main_t * vm, bond_enslave_args_t * args);
339 void bond_detach_slave (vlib_main_t * vm, bond_detach_slave_args_t * args);
340 int bond_dump_ifs (bond_interface_details_t ** out_bondids);
341 int bond_dump_slave_ifs (slave_interface_details_t ** out_slaveids,
342 u32 bond_sw_if_index);
345 unformat_bond_mode (unformat_input_t * input, va_list * args)
347 u8 *r = va_arg (*args, u8 *);
350 #define _(v, f, s) else if (unformat (input, s)) *r = BOND_MODE_##f;
360 format_bond_mode (u8 * s, va_list * args)
362 u32 i = va_arg (*args, u32);
367 #define _(v, f, s) case BOND_MODE_##f: t = (u8 *) s; break;
371 return format (s, "unknown");
373 return format (s, "%s", t);
377 unformat_bond_load_balance (unformat_input_t * input, va_list * args)
379 u8 *r = va_arg (*args, u8 *);
382 #define _(v, f, s, p) else if (unformat (input, s)) *r = BOND_LB_##f;
392 format_bond_load_balance (u8 * s, va_list * args)
394 u32 i = va_arg (*args, u32);
399 #define _(v, f, s, p) case BOND_LB_##f: t = (u8 *) s; break;
403 return format (s, "unknown");
405 return format (s, "%s", t);
409 bond_register_callback (lacp_enable_disable_func func)
411 bond_main_t *bm = &bond_main;
413 bm->lacp_plugin_loaded = 1;
414 bm->lacp_enable_disable = func;
417 static inline bond_if_t *
418 bond_get_master_by_sw_if_index (u32 sw_if_index)
420 bond_main_t *bm = &bond_main;
423 p = hash_get (bm->bond_by_sw_if_index, sw_if_index);
428 return pool_elt_at_index (bm->interfaces, p[0]);
431 static inline bond_if_t *
432 bond_get_master_by_dev_instance (u32 dev_instance)
434 bond_main_t *bm = &bond_main;
436 return pool_elt_at_index (bm->interfaces, dev_instance);
439 static inline slave_if_t *
440 bond_get_slave_by_sw_if_index (u32 sw_if_index)
442 bond_main_t *bm = &bond_main;
446 if (sw_if_index < vec_len (bm->slave_by_sw_if_index))
448 p = bm->slave_by_sw_if_index[sw_if_index];
450 sif = pool_elt_at_index (bm->neighbors, p >> 1);
456 #endif /* __included_vnet_bonding_node_h__ */
459 * fd.io coding-style-patch-verification: ON
462 * eval: (c-set-style "gnu")