From 224fe410e03320c93f6e3d7e48625a96a26e06f5 Mon Sep 17 00:00:00 2001
From: Yasuhito Takamiya <yasuhito@gmail.com>
Date: Wed, 11 Nov 2015 14:02:58 +0900
Subject: [PATCH] Add NiciraRegLoad action

---
 features/open_flow13/nicira_reg_load.feature | 18 ++++++++++++
 lib/pio/open_flow.rb                         |  2 +-
 lib/pio/open_flow13.rb                       |  1 +
 lib/pio/open_flow13/nicira_reg_load.rb       | 30 ++++++++++++++++++++
 4 files changed, 50 insertions(+), 1 deletion(-)
 create mode 100644 features/open_flow13/nicira_reg_load.feature
 create mode 100644 lib/pio/open_flow13/nicira_reg_load.rb

diff --git a/features/open_flow13/nicira_reg_load.feature b/features/open_flow13/nicira_reg_load.feature
new file mode 100644
index 00000000..942d873e
--- /dev/null
+++ b/features/open_flow13/nicira_reg_load.feature
@@ -0,0 +1,18 @@
+@open_flow13
+Feature: Pio::NiciraRegLoad
+
+  Scenario: new(0xdeadbeef, 0, n_bits: 32)
+    When I try to create an OpenFlow action with:
+      """
+      Pio::NiciraRegLoad.new(0xdeadbeef, 0, n_bits: 32)
+      """
+    Then it should finish successfully
+    And the action has the following fields and values:
+      | field                  |      value |
+      | action_type.to_hex     |     0xffff |
+      | action_length          |         24 |
+      | experimenter_id.to_hex |     0x2320 |
+      | experimenter_type      |          7 |
+      | n_bits                 |         32 |
+      | destination            |      65540 |
+      | value.to_hex           | 0xdeadbeef |
diff --git a/lib/pio/open_flow.rb b/lib/pio/open_flow.rb
index 87bdeda9..a27fb424 100644
--- a/lib/pio/open_flow.rb
+++ b/lib/pio/open_flow.rb
@@ -21,7 +21,7 @@ def self.switch_version(version)
        :FlowStats, :DescriptionStats, :AggregateStats, :TableStats, :PortStats,
        :QueueStats, :Error, :NiciraResubmit, :SetArpOperation,
        :SetArpSenderProtocolAddress, :SetArpSenderHardwareAddress,
-       :NiciraResubmitTable, :NiciraRegMove].each do |each|
+       :NiciraResubmitTable, :NiciraRegMove, :NiciraRegLoad].each do |each|
         set_message_class_name each, version
         @version = version.to_s
       end
diff --git a/lib/pio/open_flow13.rb b/lib/pio/open_flow13.rb
index 0914e8c5..ec0fe85f 100644
--- a/lib/pio/open_flow13.rb
+++ b/lib/pio/open_flow13.rb
@@ -13,6 +13,7 @@
 require 'pio/open_flow13/stats_request'
 
 # Actions
+require 'pio/open_flow13/nicira_reg_load'
 require 'pio/open_flow13/nicira_reg_move'
 require 'pio/open_flow13/send_out_port'
 require 'pio/open_flow13/set_arp_operation'
diff --git a/lib/pio/open_flow13/nicira_reg_load.rb b/lib/pio/open_flow13/nicira_reg_load.rb
new file mode 100644
index 00000000..e0c6318a
--- /dev/null
+++ b/lib/pio/open_flow13/nicira_reg_load.rb
@@ -0,0 +1,30 @@
+require 'pio/open_flow/action'
+
+module Pio
+  module OpenFlow13
+    # NXAST_REG_LOAD action
+    class NiciraRegLoad < OpenFlow::Action
+      action_header action_type: 0xffff, action_length: 24
+      uint32 :experimenter_id, value: 0x2320
+      uint16 :experimenter_type, value: 7
+      bit10 :ofs
+      bit6 :n_bits_internal
+      uint32 :destination
+      uint64 :value_internal
+
+      def initialize(value, register, n_bits: 64)
+        super(value_internal: value,
+              destination: ((1 << 16) | (register << 9) | 4),
+              n_bits_internal: n_bits - 1)
+      end
+
+      def value
+        value_internal
+      end
+
+      def n_bits
+        n_bits_internal + 1
+      end
+    end
+  end
+end