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Diffstat (limited to 'extras/vom/vom/interface_span.cpp')
| -rw-r--r-- | extras/vom/vom/interface_span.cpp | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/extras/vom/vom/interface_span.cpp b/extras/vom/vom/interface_span.cpp new file mode 100644 index 00000000000..283ea1ece54 --- /dev/null +++ b/extras/vom/vom/interface_span.cpp @@ -0,0 +1,219 @@ +/* + * 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/interface_span.hpp" +#include "vom/interface_span_cmds.hpp" +#include "vom/singular_db_funcs.hpp" + +namespace VOM { +/** + * A DB of all interface_span config + */ +singular_db<interface_span::key_t, interface_span> interface_span::m_db; + +interface_span::event_handler interface_span::m_evh; + +interface_span::interface_span(const interface& itf_from, + const interface& itf_to, + interface_span::state_t state) + : m_itf_from(itf_from.singular()) + , m_itf_to(itf_to.singular()) + , m_state(state) + , m_config(true) +{ +} + +interface_span::interface_span(const interface_span& o) + : m_itf_from(o.m_itf_from) + , m_itf_to(o.m_itf_to) + , m_state(o.m_state) + , m_config(o.m_config) +{ +} + +interface_span::~interface_span() +{ + sweep(); + + // not in the DB anymore. + m_db.release(make_pair(m_itf_from->key(), m_itf_to->key()), this); +} + +void +interface_span::sweep() +{ + if (m_config) { + HW::enqueue(new interface_span_cmds::unconfig_cmd( + m_config, m_itf_from->handle(), m_itf_to->handle())); + } + HW::write(); +} + +void +interface_span::dump(std::ostream& os) +{ + db_dump(m_db, os); +} + +void +interface_span::replay() +{ + if (m_config) { + HW::enqueue(new interface_span_cmds::config_cmd( + m_config, m_itf_from->handle(), m_itf_to->handle(), m_state)); + } +} + +std::string +interface_span::to_string() const +{ + std::ostringstream s; + s << "Itf Span-config:" + << " itf-from:" << m_itf_from->to_string() + << " itf-to:" << m_itf_to->to_string() << " state:" << m_state.to_string(); + + return (s.str()); +} + +void +interface_span::update(const interface_span& desired) +{ + if (!m_config) { + HW::enqueue(new interface_span_cmds::config_cmd( + m_config, m_itf_from->handle(), m_itf_to->handle(), m_state)); + } +} + +std::ostream& +operator<<(std::ostream& os, const interface_span::key_t& key) +{ + os << "[" << key.first << ", " << key.second << "]"; + + return (os); +} + +std::shared_ptr<interface_span> +interface_span::find_or_add(const interface_span& temp) +{ + return (m_db.find_or_add( + make_pair(temp.m_itf_from->key(), temp.m_itf_to->key()), temp)); +} + +std::shared_ptr<interface_span> +interface_span::singular() const +{ + return find_or_add(*this); +} + +interface_span::event_handler::event_handler() +{ + OM::register_listener(this); + inspect::register_handler({ "itf-span" }, "interface span configurations", + this); +} + +void +interface_span::event_handler::handle_replay() +{ + m_db.replay(); +} + +void +interface_span::event_handler::handle_populate(const client_db::key_t& key) +{ + std::shared_ptr<interface_span_cmds::dump_cmd> cmd = + std::make_shared<interface_span_cmds::dump_cmd>(); + + HW::enqueue(cmd); + HW::write(); + + for (auto& record : *cmd) { + auto& payload = record.get_payload(); + + std::shared_ptr<interface> itf_from = + interface::find(payload.sw_if_index_from); + std::shared_ptr<interface> itf_to = interface::find(payload.sw_if_index_to); + + interface_span itf_span(*itf_from, *itf_to, + state_t::from_int(payload.state)); + + VOM_LOG(log_level_t::DEBUG) << "span-dump: " << itf_from->to_string() + << itf_to->to_string() + << state_t::from_int(payload.state).to_string(); + + /* + * Write each of the discovered interfaces into the OM, + * but disable the HW Command q whilst we do, so that no + * commands are sent to VPP + */ + OM::commit(key, itf_span); + } +} + +dependency_t +interface_span::event_handler::order() const +{ + return (dependency_t::BINDING); +} + +void +interface_span::event_handler::show(std::ostream& os) +{ + db_dump(m_db, os); +} + +const interface_span::state_t interface_span::state_t::DISABLED(0, "disable"); +const interface_span::state_t interface_span::state_t::RX_ENABLED(1, + "rx-enable"); +const interface_span::state_t interface_span::state_t::TX_ENABLED(2, + "tx-enable"); +const interface_span::state_t interface_span::state_t::TX_RX_ENABLED( + 3, + "tx-rx-enable"); + +interface_span::state_t::state_t(int v, const std::string& s) + : enum_base<interface_span::state_t>(v, s) +{ +} + +interface_span::state_t +interface_span::state_t::from_int(uint8_t i) +{ + switch (i) { + case 0: + return interface_span::state_t::DISABLED; + break; + case 1: + return interface_span::state_t::RX_ENABLED; + break; + case 2: + return interface_span::state_t::TX_ENABLED; + break; + case 3: + default: + break; + } + + return interface_span::state_t::TX_RX_ENABLED; +} +} + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "mozilla") + * End: + */ |