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;
100 const static type_t TAP;
103 * TAPv2 interface type
105 const static type_t TAPV2;
108 * vhost-user interface type
110 const static type_t VHOST;
113 * bond interface type
115 const static type_t BOND;
118 * Convert VPP's name of the interface to a type
120 static type_t from_string(const std::string& str);
124 * Private constructor taking the value and the string name
126 type_t(int v, const std::string& s);
130 * The admin state of the interface
132 struct admin_state_t : enum_base<admin_state_t>
137 const static admin_state_t DOWN;
141 const static admin_state_t UP;
144 * Convert VPP's numerical value to enum type
146 static admin_state_t from_int(uint8_t val);
150 * Private constructor taking the value and the string name
152 admin_state_t(int v, const std::string& s);
156 * The oper state of the interface
158 struct oper_state_t : enum_base<oper_state_t>
161 * Operational DOWN state
163 const static oper_state_t DOWN;
165 * Operational UP state
167 const static oper_state_t UP;
170 * Convert VPP's numerical value to enum type
172 static oper_state_t from_int(uint8_t val);
176 * Private constructor taking the value and the string name
178 oper_state_t(int v, const std::string& s);
182 * Construct a new object matching the desried state
184 interface(const std::string& name,
187 const std::string& tag = "");
189 * Construct a new object matching the desried state mapped
190 * to a specific route_domain
192 interface(const std::string& name,
195 const route_domain& rd,
196 const std::string& tag = "");
200 virtual ~interface();
205 interface(const interface& o);
207 static const_iterator_t cbegin();
208 static const_iterator_t cend();
211 * Return the matching'singular' of the interface
213 std::shared_ptr<interface> singular() const;
216 * convert to string format for debug purposes
218 virtual std::string to_string(void) const;
221 * Return VPP's handle to this object
223 const handle_t& handle() const;
226 * Return the interface type
228 const type_t& type() const;
231 * Return the interface type
233 const std::string& name() const;
236 * Return the interface type
238 const key_t& key() const;
241 * Return the L2 Address
243 const l2_address_t& l2_address() const;
246 * Set the admin state of the interface
248 void set(const admin_state_t& state);
253 void set(const l2_address_t& addr);
256 * Set the operational state of the interface, as reported by VPP
258 void set(const oper_state_t& state);
261 * Set the tag to the interface
263 void set(const std::string& tag);
266 * Comparison operator - only used for UT
268 virtual bool operator==(const interface& i) const;
271 * A base class for interface Create commands
273 template <typename MSG>
274 class create_cmd : public rpc_cmd<HW::item<handle_t>, HW::item<handle_t>, MSG>
277 create_cmd(HW::item<handle_t>& item, const std::string& name)
278 : rpc_cmd<HW::item<handle_t>, HW::item<handle_t>, MSG>(item)
286 virtual ~create_cmd() = default;
289 * Comparison operator - only used for UT
291 virtual bool operator==(const create_cmd& o) const
293 return (m_name == o.m_name);
297 * Indicate the succeeded, when the HW Q is disabled.
301 rpc_cmd<HW::item<handle_t>, HW::item<handle_t>, MSG>::succeeded();
302 interface::add(m_name, this->item());
306 * add the created interface to the DB
308 void insert_interface() { interface::add(m_name, this->item()); }
310 virtual vapi_error_e operator()(MSG& reply)
312 int sw_if_index = reply.get_response().get_payload().sw_if_index;
313 int retval = reply.get_response().get_payload().retval;
315 VOM_LOG(log_level_t::DEBUG) << this->to_string() << " " << retval;
317 rc_t rc = rc_t::from_vpp_retval(retval);
318 handle_t handle = handle_t::INVALID;
320 if (rc_t::OK == rc) {
321 handle = sw_if_index;
324 HW::item<handle_t> res(handle, rc);
333 * The name of the interface to be created
335 const std::string& m_name;
339 * Base class for intterface Delete commands
341 template <typename MSG>
342 class delete_cmd : public rpc_cmd<HW::item<handle_t>, HW::item<handle_t>, MSG>
345 delete_cmd(HW::item<handle_t>& item, const std::string& name)
346 : rpc_cmd<HW::item<handle_t>, HW::item<handle_t>, MSG>(item)
351 delete_cmd(HW::item<handle_t>& item)
352 : rpc_cmd<HW::item<handle_t>, HW::item<handle_t>, MSG>(item)
360 virtual ~delete_cmd() = default;
363 * Comparison operator - only used for UT
365 virtual bool operator==(const delete_cmd& o) const
367 return (this->m_hw_item == o.m_hw_item);
371 * Indicate the succeeded, when the HW Q is disabled.
376 * remove the deleted interface from the DB
378 void remove_interface() { interface::remove(this->item()); }
382 * The name of the interface to be created
384 const std::string m_name;
388 * A class that listens to interface Events
394 * Default Constructor
399 * Virtual function called on the listener when the command has data
402 virtual void handle_interface_event(interface_cmds::events_cmd* cmd) = 0;
405 * Return the HW::item representing the status
407 HW::item<bool>& status();
411 * The status of the subscription
413 HW::item<bool> m_status;
417 * A class that listens to interface Stats
423 * Default Constructor
428 * Virtual function called on the listener when the command has data
431 virtual void handle_interface_stat(
432 interface_cmds::stats_enable_cmd* cmd) = 0;
435 * Return the HW::item representing the status
437 HW::item<bool>& status();
441 * The status of the subscription
443 HW::item<bool> m_status;
447 * The the singular instance of the interface in the DB by handle
449 static std::shared_ptr<interface> find(const handle_t& h);
452 * The the singular instance of the interface in the DB by key
454 static std::shared_ptr<interface> find(const key_t& k);
457 * Dump all interfaces into the stream provided
459 static void dump(std::ostream& os);
462 * Enable stats for this interface
464 void enable_stats(stat_listener& el,
465 const stats_type_t& st = stats_type_t::NORMAL);
469 * Set the handle of an interface object. Only called by the interface
470 * factory during the populate
472 void set(const handle_t& handle);
473 friend class interface_factory;
476 * The SW interface handle VPP has asigned to the interface
478 HW::item<handle_t> m_hdl;
481 * Return the matching 'singular' of the interface
483 virtual std::shared_ptr<interface> singular_i() const;
486 * release/remove an interface form the singular store
491 * Virtual functions to construct an interface create commands.
492 * Overridden in derived classes like the sub_interface
494 virtual std::queue<cmd*>& mk_create_cmd(std::queue<cmd*>& cmds);
497 * Virtual functions to construct an interface delete commands.
498 * Overridden in derived classes like the sub_interface
500 virtual std::queue<cmd*>& mk_delete_cmd(std::queue<cmd*>& cmds);
503 * Sweep/reap the object if still stale
505 virtual void sweep(void);
508 * A map of all interfaces key against the interface's name
510 static singular_db<key_t, interface> m_db;
513 * Add an interface to the DB keyed on handle
515 static void add(const key_t& name, const HW::item<handle_t>& item);
518 * remove an interface from the DB keyed on handle
520 static void remove(const HW::item<handle_t>& item);
524 * Class definition for listeners to OM events
526 class event_handler : public OM::listener, public inspect::command_handler
530 virtual ~event_handler() = default;
533 * Handle a populate event
535 void handle_populate(const client_db::key_t& key);
538 * Handle a replay event
540 void handle_replay();
543 * Show the object in the Singular DB
545 void show(std::ostream& os);
548 * Get the sortable Id of the listener
550 dependency_t order() const;
553 static event_handler m_evh;
556 * enable the interface stats in the singular instance
558 void enable_stats_i(stat_listener& el, const stats_type_t& st);
561 * Commit the acculmulated changes into VPP. i.e. to a 'HW" write.
563 void update(const interface& obj);
566 * return the interface's handle in the singular instance
568 const handle_t& handle_i() const;
571 * It's the OM class that calls singular()
576 * It's the singular_db class that calls replay()
578 friend class singular_db<key_t, interface>;
581 * The interfaces name
583 const std::string m_name;
586 * The interface type. clearly this cannot be changed
587 * once the interface has been created.
592 * shared pointer to the routeDoamin the interface is in.
593 * NULL is not mapped - i.e. in the default table
595 std::shared_ptr<route_domain> m_rd;
598 * shared pointer to the stats object for this interface.
600 std::shared_ptr<interface_cmds::stats_enable_cmd> m_stats;
603 * The state of the interface
605 HW::item<admin_state_t> m_state;
608 * HW state of the VPP table mapping
610 HW::item<route::table_id_t> m_table_id;
613 * HW state of the L2 address
615 HW::item<l2_address_t> m_l2_address;
618 * The state of the detailed stats collection
620 HW::item<stats_type_t> m_stats_type;
623 * Operational state of the interface
628 * tag of the interface
633 * A map of all interfaces keyed against VPP's handle
635 static std::map<handle_t, std::weak_ptr<interface>> m_hdl_db;
638 * replay the object to create it in hardware
640 virtual void replay(void);
643 * Create commands are firends so they can add interfaces to the
646 template <typename MSG>
647 friend class create_cmd;
650 * Create commands are firends so they can remove interfaces from the
653 template <typename MSG>
654 friend class delete_cmd;
658 * fd.io coding-style-patch-verification: ON
661 * eval: (c-set-style "mozilla")