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authorNeale Ranns <neale.ranns@cisco.com>2017-10-16 04:20:13 -0700
committerDamjan Marion <dmarion.lists@gmail.com>2017-11-01 09:28:06 +0000
commit812ed39f9da336310e815c361ab5a9f118657d94 (patch)
tree9d8cddc917acbb65b3dc401d880d5eb2a7f392c6 /src/vpp-api/vom/l2_binding.cpp
parent14edd97c20735ffd1c24000a7df78e154ac61478 (diff)
VPP Object Model (VOM)
The VOM is a C++ library for use by clients/agents of VPP for programming state. It uses the binary APIs to do so. Various other common client side functions are also provided. Please see om.hpp for a more detailed description. Change-Id: Ib756bfe99817093815a9e26ccf464aa5583fc523 Signed-off-by: Neale Ranns <neale.ranns@cisco.com> Co-authored-by: Mohsin Kazmi <sykazmi@cisco.com>
Diffstat (limited to 'src/vpp-api/vom/l2_binding.cpp')
-rw-r--r--src/vpp-api/vom/l2_binding.cpp206
1 files changed, 206 insertions, 0 deletions
diff --git a/src/vpp-api/vom/l2_binding.cpp b/src/vpp-api/vom/l2_binding.cpp
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+++ b/src/vpp-api/vom/l2_binding.cpp
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+/*
+ * 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/cmd.hpp"
+
+namespace VOM {
+/**
+ * A DB of all the L2 Configs
+ */
+singular_db<const handle_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)
+{
+}
+
+void
+l2_binding::sweep()
+{
+ if (m_binding && handle_t::INVALID != m_itf->handle()) {
+ HW::enqueue(new 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 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 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->handle(), this);
+}
+
+std::string
+l2_binding::to_string() const
+{
+ std::ostringstream s;
+ s << "L2-config:[" << 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 bind_cmd(m_binding, m_itf->handle(), m_bd->id(),
+ interface::type_t::BVI == m_itf->type()));
+ }
+
+ /*
+ * set the VTR operation is request
+ */
+ if (m_vtr_op.update(desired.m_vtr_op)) {
+ HW::enqueue(new 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->handle(), 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:
+ */