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diff --git a/sys/dev/isci/scil/scic_sds_stp_pio_request.h b/sys/dev/isci/scil/scic_sds_stp_pio_request.h
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+++ b/sys/dev/isci/scil/scic_sds_stp_pio_request.h
@@ -0,0 +1,131 @@
+/*-
+ * This file is provided under a dual BSD/GPLv2 license.  When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ * The full GNU General Public License is included in this distribution
+ * in the file called LICENSE.GPL.
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *   * Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in
+ *     the documentation and/or other materials provided with the
+ *     distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+#ifndef _SCIC_SDS_SATA_PIO_REQUEST_H_
+#define _SCIC_SDS_SATA_PIO_REQUEST_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif // __cplusplus
+
+#include <dev/isci/scil/sci_base_state.h>
+#include <dev/isci/scil/scic_sds_request.h>
+#include <dev/isci/scil/scu_task_context.h>
+
+/**
+ * @file
+ *
+ * @brief This file contains the structures and constants for SATA PIO
+ *        requests.
+ */
+
+
+/**
+ * @enum
+ *
+ * This is the enumeration of the SATA PIO DATA IN started substate machine.
+ */
+enum _SCIC_SDS_STP_REQUEST_STARTED_PIO_SUBSTATES
+{
+   /**
+    * While in this state the IO request object is waiting for the TC completion
+    * notification for the H2D Register FIS
+    */
+   SCIC_SDS_STP_REQUEST_STARTED_PIO_AWAIT_H2D_COMPLETION_SUBSTATE,
+
+   /**
+    * While in this state the IO request object is waiting for either a PIO Setup
+    * FIS or a D2H register FIS.  The type of frame received is based on the
+    * result of the prior frame and line conditions.
+    */
+   SCIC_SDS_STP_REQUEST_STARTED_PIO_AWAIT_FRAME_SUBSTATE,
+
+   /**
+    * While in this state the IO request object is waiting for a DATA frame from
+    * the device.
+    */
+   SCIC_SDS_STP_REQUEST_STARTED_PIO_DATA_IN_AWAIT_DATA_SUBSTATE,
+
+   /**
+    * While in this state the IO request object is waiting to transmit the next data
+    * frame to the device.
+    */
+   SCIC_SDS_STP_REQUEST_STARTED_PIO_DATA_OUT_TRANSMIT_DATA_SUBSTATE,
+
+   SCIC_SDS_STP_REQUEST_STARTED_PIO_MAX_SUBSTATES
+};
+
+
+
+
+// ---------------------------------------------------------------------------
+
+extern SCIC_SDS_IO_REQUEST_STATE_HANDLER_T
+   scic_sds_stp_request_started_pio_substate_handler_table[
+      SCIC_SDS_STP_REQUEST_STARTED_PIO_MAX_SUBSTATES];
+
+extern SCI_BASE_STATE_T
+   scic_sds_stp_request_started_pio_substate_table[
+      SCIC_SDS_STP_REQUEST_STARTED_PIO_MAX_SUBSTATES];
+
+// ---------------------------------------------------------------------------
+
+SCU_SGL_ELEMENT_T * scic_sds_stp_request_pio_get_next_sgl(
+   SCIC_SDS_STP_REQUEST_T * this_request
+);
+
+#ifdef __cplusplus
+}
+#endif // __cplusplus
+
+#endif   // _SCIC_SDS_SATA_PIO_REQUEST_H_