P4Orch: inital add of source (sonic-net#1997)

Add P4orch code and subdir Co-authored-by: PINS Working Group <[email protected]>
lguohan · Nov 30, 2021 · bcb7d61 · bcb7d61
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diff --git a/orchagent/p4orch/acl_rule_manager.cpp b/orchagent/p4orch/acl_rule_manager.cpp
diff --git a/orchagent/p4orch/acl_rule_manager.h b/orchagent/p4orch/acl_rule_manager.h
@@ -0,0 +1,153 @@
+#pragma once
+
+#include <map>
+#include <string>
+#include <vector>
+
+#include "copporch.h"
+#include "orch.h"
+#include "p4orch/acl_util.h"
+#include "p4orch/object_manager_interface.h"
+#include "p4orch/p4oidmapper.h"
+#include "p4orch/p4orch_util.h"
+#include "response_publisher_interface.h"
+#include "return_code.h"
+#include "vrforch.h"
+
+extern "C"
+{
+#include "sai.h"
+}
+
+namespace p4orch
+{
+namespace test
+{
+class AclManagerTest;
+} // namespace test
+
+class AclRuleManager : public ObjectManagerInterface
+{
+  public:
+    explicit AclRuleManager(P4OidMapper *p4oidMapper, VRFOrch *vrfOrch, CoppOrch *coppOrch,
+                            ResponsePublisherInterface *publisher)
+        : m_p4OidMapper(p4oidMapper), m_vrfOrch(vrfOrch), m_publisher(publisher), m_coppOrch(coppOrch),
+          m_countersDb(std::make_unique<swss::DBConnector>("COUNTERS_DB", 0)),
+          m_countersTable(std::make_unique<swss::Table>(
+              m_countersDb.get(), std::string(COUNTERS_TABLE) + DEFAULT_KEY_SEPARATOR + APP_P4RT_TABLE_NAME))
+    {
+        SWSS_LOG_ENTER();
+        assert(m_p4OidMapper != nullptr);
+    }
+    virtual ~AclRuleManager() = default;
+
+    void enqueue(const swss::KeyOpFieldsValuesTuple &entry) override;
+    void drain() override;
+
+    // Update counters stats for every rule in each ACL table in COUNTERS_DB, if
+    // counters are enabled in rules.
+    void doAclCounterStatsTask();
+
+  private:
+    // Deserializes an entry in a dynamically created ACL table.
+    ReturnCodeOr<P4AclRuleAppDbEntry> deserializeAclRuleAppDbEntry(
+        const std::string &acl_table_name, const std::string &key,
+        const std::vector<swss::FieldValueTuple> &attributes);
+
+    // Validate an ACL rule APP_DB entry.
+    ReturnCode validateAclRuleAppDbEntry(const P4AclRuleAppDbEntry &app_db_entry);
+
+    // Get ACL rule by table name and rule key. Return nullptr if not found.
+    P4AclRule *getAclRule(const std::string &acl_table_name, const std::string &acl_rule_key);
+
+    // Processes add operation for an ACL rule.
+    ReturnCode processAddRuleRequest(const std::string &acl_rule_key, const P4AclRuleAppDbEntry &app_db_entry);
+
+    // Processes delete operation for an ACL rule.
+    ReturnCode processDeleteRuleRequest(const std::string &acl_table_name, const std::string &acl_rule_key);
+
+    // Processes update operation for an ACL rule.
+    ReturnCode processUpdateRuleRequest(const P4AclRuleAppDbEntry &app_db_entry, const P4AclRule &old_acl_rule);
+
+    // Set counters stats for an ACL rule in COUNTERS_DB.
+    ReturnCode setAclRuleCounterStats(const P4AclRule &acl_rule);
+
+    // Create an ACL rule.
+    ReturnCode createAclRule(P4AclRule &acl_rule);
+
+    // Create an ACL counter.
+    ReturnCode createAclCounter(const std::string &acl_table_name, const std::string &counter_key,
+                                const P4AclCounter &p4_acl_counter, sai_object_id_t *counter_oid);
+
+    // Create an ACL meter.
+    ReturnCode createAclMeter(const P4AclMeter &p4_acl_meter, const std::string &meter_key, sai_object_id_t *meter_oid);
+
+    // Remove an ACL counter.
+    ReturnCode removeAclCounter(const std::string &acl_table_name, const std::string &counter_key);
+
+    // Update ACL meter.
+    ReturnCode updateAclMeter(const P4AclMeter &new_acl_meter, const P4AclMeter &old_acl_meter);
+
+    // Update ACL rule.
+    ReturnCode updateAclRule(const P4AclRule &new_acl_rule, const P4AclRule &old_acl_rule,
+                             std::vector<sai_attribute_t> &acl_entry_attrs,
+                             std::vector<sai_attribute_t> &rollback_attrs);
+
+    // Remove an ACL meter.
+    ReturnCode removeAclMeter(const std::string &meter_key);
+
+    // Remove the ACL rule by key in the given ACL table.
+    ReturnCode removeAclRule(const std::string &acl_table_name, const std::string &acl_rule_key);
+
+    // Set Meter value in ACL rule.
+    ReturnCode setMeterValue(const P4AclTableDefinition *acl_table, const P4AclRuleAppDbEntry &app_db_entry,
+                             P4AclMeter &acl_meter);
+
+    // Validate and set all match attributes in an ACL rule.
+    ReturnCode setAllMatchFieldValues(const P4AclRuleAppDbEntry &app_db_entry, const P4AclTableDefinition *acl_table,
+                                      P4AclRule &acl_rules);
+
+    // Validate and set all action attributes in an ACL rule.
+    ReturnCode setAllActionFieldValues(const P4AclRuleAppDbEntry &app_db_entry, const P4AclTableDefinition *acl_table,
+                                       P4AclRule &acl_rule);
+
+    // Validate and set a match attribute in an ACL rule.
+    ReturnCode setMatchValue(const acl_entry_attr_union_t attr_name, const std::string &attr_value,
+                             sai_attribute_value_t *value, P4AclRule *acl_rule,
+                             const std::string &ip_type_bit_type = EMPTY_STRING);
+
+    // Validate and set an action attribute in an ACL rule.
+    ReturnCode setActionValue(const acl_entry_attr_union_t attr_name, const std::string &attr_value,
+                              sai_attribute_value_t *value, P4AclRule *acl_rule);
+
+    // Get port object id by name for redirect action.
+    ReturnCode getRedirectActionPortOid(const std::string &target, sai_object_id_t *rediect_oid);
+
+    // Get next hop object id by name for redirect action.
+    ReturnCode getRedirectActionNextHopOid(const std::string &target, sai_object_id_t *rediect_oid);
+
+    // Create user defined trap for each cpu queue/trap group and program user
+    // defined traps in hostif. Save the user defined trap oids in m_p4OidMapper
+    // and default ref count is 1.
+    ReturnCode setUpUserDefinedTraps();
+
+    // Clean up user defined traps created for cpu queues. Callers need to make
+    // sure ref count on user defined traps in m_userDefinedTraps are ones before
+    // clean up.
+    ReturnCode cleanUpUserDefinedTraps();
+
+    P4OidMapper *m_p4OidMapper;
+    ResponsePublisherInterface *m_publisher;
+    P4AclRuleTables m_aclRuleTables;
+    VRFOrch *m_vrfOrch;
+    CoppOrch *m_coppOrch;
+    std::deque<swss::KeyOpFieldsValuesTuple> m_entries;
+    std::unique_ptr<swss::DBConnector> m_countersDb;
+    std::unique_ptr<swss::Table> m_countersTable;
+    std::vector<P4UserDefinedTrapHostifTableEntry> m_userDefinedTraps;
+
+    friend class AclTableManager;
+    friend class p4orch::test::AclManagerTest;
+};
+
+} // namespace p4orch