support iscsi task function

2017-06-12 21:06:57 +08:00
parent 8ca6860460
commit 7a2b08ff80
9 changed files with 206 additions and 40 deletions
--- a/pkg/port/iscsit/task.go
+++ b/pkg/port/iscsit/task.go
@@ -0,0 +1,55 @@
+/*
+Copyright 2017 The GoStor Authors All rights reserved.
+
+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.
+*/
+
+// iSCSI task management
+package iscsit
+
+const (
+	ISCSI_FLAG_TM_FUNC_MASK byte = 0x7F
+
+	// Function values
+	// aborts the task identified by the Referenced Task Tag field
+	ISCSI_TM_FUNC_ABORT_TASK = 1
+	// aborts all Tasks issued via this session on the logical unit
+	ISCSI_TM_FUNC_ABORT_TASK_SET = 2
+	// clears the Auto Contingent Allegiance condition
+	ISCSI_TM_FUNC_CLEAR_ACA = 3
+	// aborts all Tasks in the appropriate task set as defined by the TST field in the Control mode page
+	ISCSI_TM_FUNC_CLEAR_TASK_SET     = 4
+	ISCSI_TM_FUNC_LOGICAL_UNIT_RESET = 5
+	ISCSI_TM_FUNC_TARGET_WARM_RESET  = 6
+	ISCSI_TM_FUNC_TARGET_COLD_RESET  = 7
+	// reassigns connection allegiance for the task identified by the Referenced Task Tag field to this connection, thus resuming the iSCSI exchanges for the task
+	ISCSI_TM_FUNC_TASK_REASSIGN = 8
+
+	// Response values
+	// Function complete
+	ISCSI_TMF_RSP_COMPLETE = 0x00
+	// Task does not exist
+	ISCSI_TMF_RSP_NO_TASK = 0x01
+	// LUN does not exist
+	ISCSI_TMF_RSP_NO_LUN = 0x02
+	// Task still allegiant
+	ISCSI_TMF_RSP_TASK_ALLEGIANT = 0x03
+	// Task allegiance reassignment not supported
+	ISCSI_TMF_RSP_NO_FAILOVER = 0x04
+	// Task management function not supported
+	ISCSI_TMF_RSP_NOT_SUPPORTED = 0x05
+	// Function authorization failed
+	ISCSI_TMF_RSP_AUTH_FAILED = 0x06
+	// Function rejected
+	ISCSI_TMF_RSP_REJECTED = 0xff
+)