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.
16 #ifndef __VOM_INTERFACE_H__
17 #define __VOM_INTERFACE_H__
19 #include "vom/enum_base.hpp"
21 #include "vom/inspect.hpp"
22 #include "vom/object_base.hpp"
24 #include "vom/prefix.hpp"
25 #include "vom/route_domain.hpp"
26 #include "vom/rpc_cmd.hpp"
27 #include "vom/singular_db.hpp"
31 * Forward declaration of the stats and events command
33 namespace interface_cmds {
34 class stats_enable_cmd;
39 * A representation of an interface in VPP
41 class interface : public object_base
44 struct stats_type_t : public enum_base<stats_type_t>
46 const static stats_type_t DETAILED;
47 const static stats_type_t NORMAL;
50 stats_type_t(int v, const std::string& s);
54 * The key for interface's key
56 typedef std::string key_t;
61 typedef singular_db<const std::string, interface>::const_iterator
67 struct type_t : enum_base<type_t>
72 const static type_t UNKNOWN;
74 * A brideged Virtual interface (aka SVI or IRB)
76 const static type_t BVI;
80 const static type_t VXLAN;
82 * Ethernet interface type
84 const static type_t ETHERNET;
86 * AF-Packet interface type
88 const static type_t AFPACKET;
90 * loopback interface type
92 const static type_t LOOPBACK;
94 * Local interface type (specific to VPP)
96 const static type_t LOCAL;
99 * TAPv2 interface type
101 const static type_t TAPV2;
104 * vhost-user interface type
106 const static type_t VHOST;
109 * bond interface type
111 const static type_t BOND;
116 const static type_t PIPE;
121 const static type_t PIPE_END;
124 * Convert VPP's name of the interface to a type
126 static type_t from_string(const std::string& str);
130 * Private constructor taking the value and the string name
132 type_t(int v, const std::string& s);
136 * The admin state of the interface
138 struct admin_state_t : enum_base<admin_state_t>
143 const static admin_state_t DOWN;
147 const static admin_state_t UP;
150 * Convert VPP's numerical value to enum type
152 static admin_state_t from_int(uint8_t val);
156 * Private constructor taking the value and the string name
158 admin_state_t(int v, const std::string& s);
162 * The oper state of the interface
164 struct oper_state_t : enum_base<oper_state_t>
167 * Operational DOWN state
169 const static oper_state_t DOWN;
171 * Operational UP state
173 const static oper_state_t UP;
176 * Convert VPP's numerical value to enum type
178 static oper_state_t from_int(uint8_t val);
182 * Private constructor taking the value and the string name
184 oper_state_t(int v, const std::string& s);
188 * Construct a new object matching the desried state
190 interface(const std::string& name,
193 const std::string& tag = "");
195 * Construct a new object matching the desried state mapped
196 * to a specific route_domain
198 interface(const std::string& name,
201 const route_domain& rd,
202 const std::string& tag = "");
206 virtual ~interface();
211 interface(const interface& o);
213 static const_iterator_t cbegin();
214 static const_iterator_t cend();
217 * Return the matching'singular' of the interface
219 std::shared_ptr<interface> singular() const;
222 * convert to string format for debug purposes
224 virtual std::string to_string(void) const;
227 * Return VPP's handle to this object
229 const handle_t& handle() const;
232 * Return the interface type
234 const type_t& type() const;
237 * Return the interface type
239 const std::string& name() const;
242 * Return the interface type
244 const key_t& key() const;
247 * Return the L2 Address
249 const l2_address_t& l2_address() const;
252 * Set the admin state of the interface
254 void set(const admin_state_t& state);
259 void set(const l2_address_t& addr);
262 * Set the operational state of the interface, as reported by VPP
264 void set(const oper_state_t& state);
267 * Set the tag to the interface
269 void set(const std::string& tag);
272 * Comparison operator - only used for UT
274 virtual bool operator==(const interface& i) const;
277 * A base class for interface Create commands
279 template <typename MSG>
280 class create_cmd : public rpc_cmd<HW::item<handle_t>, MSG>
283 create_cmd(HW::item<handle_t>& item, const std::string& name)
284 : rpc_cmd<HW::item<handle_t>, MSG>(item)
292 virtual ~create_cmd() = default;
295 * Comparison operator - only used for UT
297 virtual bool operator==(const create_cmd& o) const
299 return (m_name == o.m_name);
303 * Indicate the succeeded, when the HW Q is disabled.
307 rpc_cmd<HW::item<handle_t>, MSG>::succeeded();
308 interface::add(m_name, this->item());
312 * add the created interface to the DB
314 void insert_interface() { interface::add(m_name, this->item()); }
316 virtual vapi_error_e operator()(MSG& reply)
318 int sw_if_index = reply.get_response().get_payload().sw_if_index;
319 int retval = reply.get_response().get_payload().retval;
321 VOM_LOG(log_level_t::DEBUG) << this->to_string() << " res:" << retval
322 << " sw-if-index:" << sw_if_index;
324 rc_t rc = rc_t::from_vpp_retval(retval);
325 handle_t handle = handle_t::INVALID;
327 if (rc_t::OK == rc) {
328 handle = sw_if_index;
331 this->fulfill(HW::item<handle_t>(handle, rc));
338 * The name of the interface to be created
340 const std::string& m_name;
344 * Base class for intterface Delete commands
346 template <typename MSG>
347 class delete_cmd : public rpc_cmd<HW::item<handle_t>, MSG>
350 delete_cmd(HW::item<handle_t>& item, const std::string& name)
351 : rpc_cmd<HW::item<handle_t>, MSG>(item)
356 delete_cmd(HW::item<handle_t>& item)
357 : rpc_cmd<HW::item<handle_t>, MSG>(item)
365 virtual ~delete_cmd() = default;
368 * Comparison operator - only used for UT
370 virtual bool operator==(const delete_cmd& o) const
372 return (this->m_hw_item == o.m_hw_item);
376 * Indicate the succeeded, when the HW Q is disabled.
381 * remove the deleted interface from the DB
383 void remove_interface() { interface::remove(this->item()); }
387 * The name of the interface to be created
389 const std::string m_name;
393 * A class that listens to interface Events
399 * Default Constructor
404 * Virtual function called on the listener when the command has data
407 virtual void handle_interface_event(interface_cmds::events_cmd* cmd) = 0;
410 * Return the HW::item representing the status
412 HW::item<bool>& status();
416 * The status of the subscription
418 HW::item<bool> m_status;
422 * A class that listens to interface Stats
428 * Default Constructor
433 * Virtual function called on the listener when the command has data
436 virtual void handle_interface_stat(
437 interface_cmds::stats_enable_cmd* cmd) = 0;
440 * Return the HW::item representing the status
442 HW::item<bool>& status();
446 * The status of the subscription
448 HW::item<bool> m_status;
452 * The the singular instance of the interface in the DB by handle
454 static std::shared_ptr<interface> find(const handle_t& h);
457 * The the singular instance of the interface in the DB by key
459 static std::shared_ptr<interface> find(const key_t& k);
462 * Dump all interfaces into the stream provided
464 static void dump(std::ostream& os);
467 * Enable stats for this interface
469 void enable_stats(stat_listener& el,
470 const stats_type_t& st = stats_type_t::NORMAL);
474 * Set the handle of an interface object. Only called by the interface
475 * factory during the populate
477 void set(const handle_t& handle);
478 friend class interface_factory;
482 * The SW interface handle VPP has asigned to the interface
484 HW::item<handle_t> m_hdl;
487 * Return the matching 'singular' of the interface
489 virtual std::shared_ptr<interface> singular_i() const;
492 * release/remove an interface form the singular store
497 * Virtual functions to construct an interface create commands.
498 * Overridden in derived classes like the sub_interface
500 virtual std::queue<cmd*>& mk_create_cmd(std::queue<cmd*>& cmds);
503 * Virtual functions to construct an interface delete commands.
504 * Overridden in derived classes like the sub_interface
506 virtual std::queue<cmd*>& mk_delete_cmd(std::queue<cmd*>& cmds);
509 * Sweep/reap the object if still stale
511 virtual void sweep(void);
514 * A map of all interfaces key against the interface's name
516 static singular_db<key_t, interface> m_db;
519 * Add an interface to the DB keyed on handle
521 static void add(const key_t& name, const HW::item<handle_t>& item);
524 * remove an interface from the DB keyed on handle
526 static void remove(const HW::item<handle_t>& item);
530 * Class definition for listeners to OM events
532 class event_handler : public OM::listener, public inspect::command_handler
536 virtual ~event_handler() = default;
539 * Handle a populate event
541 void handle_populate(const client_db::key_t& key);
544 * Handle a replay event
546 void handle_replay();
549 * Show the object in the Singular DB
551 void show(std::ostream& os);
554 * Get the sortable Id of the listener
556 dependency_t order() const;
559 static event_handler m_evh;
562 * enable the interface stats in the singular instance
564 void enable_stats_i(stat_listener& el, const stats_type_t& st);
567 * Commit the acculmulated changes into VPP. i.e. to a 'HW" write.
569 void update(const interface& obj);
572 * return the interface's handle in the singular instance
574 const handle_t& handle_i() const;
577 * It's the OM class that calls singular()
582 * It's the singular_db class that calls replay()
584 friend class singular_db<key_t, interface>;
587 * The interfaces name
589 const std::string m_name;
592 * The interface type. clearly this cannot be changed
593 * once the interface has been created.
598 * shared pointer to the routeDoamin the interface is in.
599 * NULL is not mapped - i.e. in the default table
601 std::shared_ptr<route_domain> m_rd;
604 * shared pointer to the stats object for this interface.
606 std::shared_ptr<interface_cmds::stats_enable_cmd> m_stats;
609 * The state of the interface
611 HW::item<admin_state_t> m_state;
614 * HW state of the VPP table mapping
616 HW::item<route::table_id_t> m_table_id;
619 * HW state of the L2 address
621 HW::item<l2_address_t> m_l2_address;
624 * The state of the detailed stats collection
626 HW::item<stats_type_t> m_stats_type;
629 * Operational state of the interface
634 * tag of the interface
639 * A map of all interfaces keyed against VPP's handle
641 static std::map<handle_t, std::weak_ptr<interface>> m_hdl_db;
644 * replay the object to create it in hardware
646 virtual void replay(void);
649 * Create commands are firends so they can add interfaces to the
652 template <typename MSG>
653 friend class create_cmd;
656 * Create commands are firends so they can remove interfaces from the
659 template <typename MSG>
660 friend class delete_cmd;
664 * fd.io coding-style-patch-verification: ON
667 * eval: (c-set-style "mozilla")