VOM: bond: Add support for LACP

Change-Id: I0245263b212142858d3305b0f365d8342912dbb9
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>

1 files changed, 178 insertions, 0 deletions

diff --git a/src/vpp-api/vom/bond_group_binding.cpp b/src/vpp-api/vom/bond_group_binding.cpp
new file mode 100644
index 00000000000..6958eb386ba
--- /dev/null
+++ b/src/vpp-api/vom/bond_group_binding.cpp
@@ -0,0 +1,178 @@
+/*
+ * Copyright (c) 2018 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/bond_group_binding.hpp"
+#include "vom/bond_group_binding_cmds.hpp"
+
+namespace VOM {
+
+/**
+ * A DB of all bond interface binding
+ */
+singular_db<bond_group_binding::key_t, bond_group_binding>
+  bond_group_binding::m_db;
+
+bond_group_binding::event_handler bond_group_binding::m_evh;
+
+bond_group_binding::bond_group_binding(const bond_interface& itf,
+                                       const enslaved_itf_t& itfs)
+  : m_itf(itf.singular())
+  , m_mem_itfs(itfs)
+  , m_binding(false)
+{
+}
+
+bond_group_binding::bond_group_binding(const bond_group_binding& o)
+  : m_itf(o.m_itf)
+  , m_mem_itfs(o.m_mem_itfs)
+  , m_binding(o.m_binding)
+{
+}
+
+bond_group_binding::~bond_group_binding()
+{
+  sweep();
+
+  // not in the DB anymore.
+  m_db.release(key(), this);
+}
+
+const bond_group_binding::key_t
+bond_group_binding::key() const
+{
+  return (m_itf->key() + "-binding");
+}
+
+void
+bond_group_binding::sweep()
+{
+
+  auto it = m_mem_itfs.cbegin();
+  while (it != m_mem_itfs.cend()) {
+    if (m_binding) {
+      HW::enqueue(
+        new bond_group_binding_cmds::unbind_cmd(m_binding, it->hdl()));
+    }
+    HW::write();
+    ++it;
+  }
+}
+
+void
+bond_group_binding::dump(std::ostream& os)
+{
+  m_db.dump(os);
+}
+
+void
+bond_group_binding::replay()
+{
+  auto it = m_mem_itfs.cbegin();
+  while (it != m_mem_itfs.cend()) {
+    if (m_binding) {
+      HW::enqueue(
+        new bond_group_binding_cmds::bind_cmd(m_binding, m_itf->handle(), *it));
+    }
+    HW::write();
+    ++it;
+  }
+}
+
+std::string
+bond_group_binding::to_string() const
+{
+  auto it = m_mem_itfs.cbegin();
+  std::ostringstream s;
+  s << "bond-interface-binding: " << m_itf->to_string() << " slave-itfs: [";
+  while (it != m_mem_itfs.cend()) {
+    s << " " << it->to_string();
+    ++it;
+  }
+  s << "]";
+  return (s.str());
+}
+
+void
+bond_group_binding::update(const bond_group_binding& desired)
+{
+  /*
+   * the desired state is always that the interface should be created
+   */
+  auto it = m_mem_itfs.cbegin();
+  while (it != m_mem_itfs.cend()) {
+    if (!m_binding) {
+      HW::enqueue(
+        new bond_group_binding_cmds::bind_cmd(m_binding, m_itf->handle(), *it));
+    }
+    ++it;
+  }
+}
+
+std::shared_ptr<bond_group_binding>
+bond_group_binding::find_or_add(const bond_group_binding& temp)
+{
+  return (m_db.find_or_add(temp.key(), temp));
+}
+
+std::shared_ptr<bond_group_binding>
+bond_group_binding::singular() const
+{
+  return find_or_add(*this);
+}
+
+bond_group_binding::event_handler::event_handler()
+{
+  OM::register_listener(this);
+  inspect::register_handler({ "bond-intf-binding" }, "Bond interface binding",
+                            this);
+}
+
+void
+bond_group_binding::event_handler::handle_replay()
+{
+  m_db.replay();
+}
+
+void
+bond_group_binding::event_handler::handle_populate(const client_db::key_t& key)
+{
+  /*
+   * handle it in interface class
+   */
+}
+
+dependency_t
+bond_group_binding::event_handler::order() const
+{
+  /*
+   * We want enslaved interfaces bind to bond after interface
+   * but before anything else.
+   */
+  return (dependency_t::BOND_BINDING);
+}
+
+void
+bond_group_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:
+ */