/* * 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. */ #include "vom/l2_binding.hpp" #include "vom/l2_binding_cmds.hpp" namespace VOM { /** * A DB of all the L2 Configs */ singular_db<l2_binding::key_t, l2_binding> l2_binding::m_db; l2_binding::event_handler l2_binding::m_evh; /* * Make sure these are in sync with the smae enum in VPP */ const l2_binding::l2_vtr_op_t l2_binding::l2_vtr_op_t::L2_VTR_DISABLED( 0, "disabled"); const l2_binding::l2_vtr_op_t l2_binding::l2_vtr_op_t::L2_VTR_PUSH_1(1, "push-1"); const l2_binding::l2_vtr_op_t l2_binding::l2_vtr_op_t::L2_VTR_PUSH_2(2, "push-2"); const l2_binding::l2_vtr_op_t l2_binding::l2_vtr_op_t::L2_VTR_POP_1(3, "pop-1"); const l2_binding::l2_vtr_op_t l2_binding::l2_vtr_op_t::L2_VTR_POP_2(4, "pop-2"); const l2_binding::l2_vtr_op_t l2_binding::l2_vtr_op_t::L2_VTR_TRANSLATE_1_1( 5, "translate-1-1"); const l2_binding::l2_vtr_op_t l2_binding::l2_vtr_op_t::L2_VTR_TRANSLATE_1_2( 6, "translate-1-2"); const l2_binding::l2_vtr_op_t l2_binding::l2_vtr_op_t::L2_VTR_TRANSLATE_2_1( 7, "translate-2-1"); const l2_binding::l2_vtr_op_t l2_binding::l2_vtr_op_t::L2_VTR_TRANSLATE_2_2( 5, "translate-2-2"); l2_binding::l2_vtr_op_t::l2_vtr_op_t(int v, const std::string s) : enum_base<l2_binding::l2_vtr_op_t>(v, s) { } /** * Construct a new object matching the desried state */ l2_binding::l2_binding(const interface& itf, const bridge_domain& bd) : m_itf(itf.singular()) , m_bd(bd.singular()) , m_binding(0) , m_vtr_op(l2_vtr_op_t::L2_VTR_DISABLED, rc_t::UNSET) , m_vtr_op_tag(0) { } l2_binding::l2_binding(const l2_binding& o) : m_itf(o.m_itf) , m_bd(o.m_bd) , m_binding(0) , m_vtr_op(o.m_vtr_op) , m_vtr_op_tag(o.m_vtr_op_tag) { } const l2_binding::key_t& l2_binding::key() const { return (m_itf->key()); } bool l2_binding::operator==(const l2_binding& l) const { return ((*m_itf == *l.m_itf) && (*m_bd == *l.m_bd)); } std::shared_ptr<l2_binding> l2_binding::find(const key_t& key) { return (m_db.find(key)); } void l2_binding::sweep() { if (m_binding && handle_t::INVALID != m_itf->handle()) { HW::enqueue( new l2_binding_cmds::unbind_cmd(m_binding, m_itf->handle(), m_bd->id(), interface::type_t::BVI == m_itf->type())); } // no need to undo the VTR operation. HW::write(); } void l2_binding::replay() { if (m_binding && handle_t::INVALID != m_itf->handle()) { HW::enqueue( new l2_binding_cmds::bind_cmd(m_binding, m_itf->handle(), m_bd->id(), interface::type_t::BVI == m_itf->type())); } if (m_vtr_op && handle_t::INVALID != m_itf->handle()) { HW::enqueue(new l2_binding_cmds::set_vtr_op_cmd(m_vtr_op, m_itf->handle(), m_vtr_op_tag)); } } l2_binding::~l2_binding() { sweep(); // not in the DB anymore. m_db.release(m_itf->key(), this); } std::string l2_binding::to_string() const { std::ostringstream s; s << "L2-binding:[" << m_itf->to_string() << " " << m_bd->to_string() << " " << m_binding.to_string() << "]"; return (s.str()); } void l2_binding::set(const l2_vtr_op_t& op, uint16_t tag) { assert(rc_t::UNSET == m_vtr_op.rc()); m_vtr_op.set(rc_t::NOOP); m_vtr_op.update(op); m_vtr_op_tag = tag; } void l2_binding::update(const l2_binding& desired) { /* * the desired state is always that the interface should be created */ if (rc_t::OK != m_binding.rc()) { HW::enqueue( new l2_binding_cmds::bind_cmd(m_binding, m_itf->handle(), m_bd->id(), interface::type_t::BVI == m_itf->type())); } else if (!(*m_bd == *desired.m_bd)) { /* * re-binding to a different BD. do unbind, bind. */ HW::enqueue( new l2_binding_cmds::unbind_cmd(m_binding, m_itf->handle(), m_bd->id(), interface::type_t::BVI == m_itf->type())); m_bd = desired.m_bd; HW::enqueue( new l2_binding_cmds::bind_cmd(m_binding, m_itf->handle(), m_bd->id(), interface::type_t::BVI == m_itf->type())); } /* * set the VTR operation if request */ if (m_vtr_op.update(desired.m_vtr_op)) { HW::enqueue(new l2_binding_cmds::set_vtr_op_cmd(m_vtr_op, m_itf->handle(), m_vtr_op_tag)); } } std::shared_ptr<l2_binding> l2_binding::find_or_add(const l2_binding& temp) { return (m_db.find_or_add(temp.m_itf->key(), temp)); } std::shared_ptr<l2_binding> l2_binding::singular() const { return find_or_add(*this); } void l2_binding::dump(std::ostream& os) { m_db.dump(os); } l2_binding::event_handler::event_handler() { OM::register_listener(this); inspect::register_handler({ "l2" }, "L2 bindings", this); } void l2_binding::event_handler::handle_replay() { m_db.replay(); } void l2_binding::event_handler::handle_populate(const client_db::key_t& key) { /** * This is done while populating the bridge-domain */ } dependency_t l2_binding::event_handler::order() const { return (dependency_t::BINDING); } void l2_binding::event_handler::show(std::ostream& os) { m_db.dump(os); } } /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "mozilla") * End: */