isci: uplevel register hardware data structures and unsolicited frame handling

Reported-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NDan Williams <dan.j.williams@intel.com>

drivers/scsi/isci/Makefile

@@ -5,6 +5,7 @@ isci-objs := init.o phy.o request.o sata.o \
 	     host.o task.o probe_roms.o \
 	     remote_node_context.o \
 	     remote_node_table.o \
+	     unsolicited_frame_control.o \
 	     core/scic_sds_request.o \
 	     core/scic_sds_stp_request.o \
 	     core/scic_sds_port.o \
@@ -12,6 +13,5 @@ isci-objs := init.o phy.o request.o sata.o \
 	     core/scic_sds_phy.o \
 	     core/scic_sds_ssp_request.o \
 	     core/scic_sds_smp_request.o \
-	     core/scic_sds_unsolicited_frame_control.o \
 	     core/sci_base_state_machine.o \
 	     core/sci_util.o

drivers/scsi/isci/core/scic_sds_phy.h

@@ -58,7 +58,7 @@
 
 #include "sas.h"
 #include "scic_phy.h"
-#include "scu_registers.h"
+#include "registers.h"
 #include "sci_base_state_machine.h"
 #include <scsi/libsas.h>
 

drivers/scsi/isci/core/scic_sds_port.c

@@ -61,7 +61,7 @@
 #include "remote_device.h"
 #include "remote_node_context.h"
 #include "scic_sds_request.h"
-#include "scu_registers.h"
+#include "registers.h"
 #include "timers.h"
 
 #define SCIC_SDS_PORT_MIN_TIMER_COUNT  (SCI_MAX_PORTS)

drivers/scsi/isci/core/scic_sds_port.h

@@ -59,7 +59,7 @@
 #include <linux/kernel.h>
 #include "isci.h"
 #include "sas.h"
-#include "scu_registers.h"
+#include "registers.h"
 #include "sci_base_state_machine.h"
 
 struct scic_sds_controller;

drivers/scsi/isci/core/scic_sds_port_registers.h

-/*
- * 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.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * 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.
- */
-
-#ifndef _SCIC_SDS_PORT_REGISTERS_H_
-#define _SCIC_SDS_PORT_REGISTERS_H_
-
-/**
- * This file contains a set of macros that assist in reading the SCU hardware
- *    registers.
- *
- *
- */
-
-#endif /* _SCIC_SDS_PORT_REGISTERS_H_ */

drivers/scsi/isci/core/scic_sds_request.c

@@ -55,13 +55,13 @@
 
 #include <scsi/sas.h>
 #include "scic_io_request.h"
-#include "scu_registers.h"
+#include "registers.h"
 #include "scic_sds_port.h"
 #include "remote_device.h"
 #include "scic_sds_request.h"
 #include "scic_sds_smp_request.h"
 #include "scic_sds_stp_request.h"
-#include "scic_sds_unsolicited_frame_control.h"
+#include "unsolicited_frame_control.h"
 #include "sci_util.h"
 #include "scu_completion_codes.h"
 #include "scu_task_context.h"

drivers/scsi/isci/core/scic_sds_stp_request.c

@@ -62,7 +62,7 @@
 #include "scic_sds_request.h"
 #include "scic_sds_stp_pio_request.h"
 #include "scic_sds_stp_request.h"
-#include "scic_sds_unsolicited_frame_control.h"
+#include "unsolicited_frame_control.h"
 #include "sci_util.h"
 #include "scu_completion_codes.h"
 #include "scu_event_codes.h"

drivers/scsi/isci/core/scu_viit_data.h

-/*
- * 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.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * 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.
- */
-
-#ifndef _SCU_VIIT_DATA_HEADER_
-#define _SCU_VIIT_DATA_HEADER_
-
-/**
- * This file contains the constants and structures for the SCU hardware VIIT
- *    table entries.
- *
- *
- */
-
-
-#define SCU_VIIT_ENTRY_ID_MASK         (0xC0000000)
-#define SCU_VIIT_ENTRY_ID_SHIFT        (30)
-
-#define SCU_VIIT_ENTRY_FUNCTION_MASK   (0x0FF00000)
-#define SCU_VIIT_ENTRY_FUNCTION_SHIFT  (20)
-
-#define SCU_VIIT_ENTRY_IPPTMODE_MASK   (0x0001F800)
-#define SCU_VIIT_ENTRY_IPPTMODE_SHIFT  (12)
-
-#define SCU_VIIT_ENTRY_LPVIE_MASK      (0x00000F00)
-#define SCU_VIIT_ENTRY_LPVIE_SHIFT     (8)
-
-#define SCU_VIIT_ENTRY_STATUS_MASK     (0x000000FF)
-#define SCU_VIIT_ENTRY_STATUS_SHIFT    (0)
-
-#define SCU_VIIT_ENTRY_ID_INVALID   (0 << SCU_VIIT_ENTRY_ID_SHIFT)
-#define SCU_VIIT_ENTRY_ID_VIIT      (1 << SCU_VIIT_ENTRY_ID_SHIFT)
-#define SCU_VIIT_ENTRY_ID_IIT       (2 << SCU_VIIT_ENTRY_ID_SHIFT)
-#define SCU_VIIT_ENTRY_ID_VIRT_EXP  (3 << SCU_VIIT_ENTRY_ID_SHIFT)
-
-#define SCU_VIIT_IPPT_SSP_INITIATOR (0x01 << SCU_VIIT_ENTRY_IPPTMODE_SHIFT)
-#define SCU_VIIT_IPPT_SMP_INITIATOR (0x02 << SCU_VIIT_ENTRY_IPPTMODE_SHIFT)
-#define SCU_VIIT_IPPT_STP_INITIATOR (0x04 << SCU_VIIT_ENTRY_IPPTMODE_SHIFT)
-#define SCU_VIIT_IPPT_INITIATOR	    \
-	(\
-		SCU_VIIT_IPPT_SSP_INITIATOR  \
-		| SCU_VIIT_IPPT_SMP_INITIATOR  \
-		| SCU_VIIT_IPPT_STP_INITIATOR  \
-	)
-
-#define SCU_VIIT_STATUS_RNC_VALID      (0x01 << SCU_VIIT_ENTRY_STATUS_SHIFT)
-#define SCU_VIIT_STATUS_ADDRESS_VALID  (0x02 << SCU_VIIT_ENTRY_STATUS_SHIFT)
-#define SCU_VIIT_STATUS_RNI_VALID      (0x04 << SCU_VIIT_ENTRY_STATUS_SHIFT)
-#define SCU_VIIT_STATUS_ALL_VALID      \
-	(\
-		SCU_VIIT_STATUS_RNC_VALID	\
-		| SCU_VIIT_STATUS_ADDRESS_VALID	  \
-		| SCU_VIIT_STATUS_RNI_VALID	  \
-	)
-
-#define SCU_VIIT_IPPT_SMP_TARGET    (0x10 << SCU_VIIT_ENTRY_IPPTMODE_SHIFT)
-
-/**
- * struct scu_viit_entry - This is the SCU Virtual Initiator Table Entry
- *
- *
- */
-struct scu_viit_entry {
-	/**
-	 * This must be encoded as to the type of initiator that is being constructed
-	 * for this port.
-	 */
-	u32 status;
-
-	/**
-	 * Virtual initiator high SAS Address
-	 */
-	u32 initiator_sas_address_hi;
-
-	/**
-	 * Virtual initiator low SAS Address
-	 */
-	u32 initiator_sas_address_lo;
-
-	/**
-	 * This must be 0
-	 */
-	u32 reserved;
-
-};
-
-
-/* IIT Status Defines */
-#define SCU_IIT_ENTRY_ID_MASK                (0xC0000000)
-#define SCU_IIT_ENTRY_ID_SHIFT               (30)
-
-#define SCU_IIT_ENTRY_STATUS_UPDATE_MASK     (0x20000000)
-#define SCU_IIT_ENTRY_STATUS_UPDATE_SHIFT    (29)
-
-#define SCU_IIT_ENTRY_LPI_MASK               (0x00000F00)
-#define SCU_IIT_ENTRY_LPI_SHIFT              (8)
-
-#define SCU_IIT_ENTRY_STATUS_MASK            (0x000000FF)
-#define SCU_IIT_ENTRY_STATUS_SHIFT           (0)
-
-/* IIT Remote Initiator Defines */
-#define SCU_IIT_ENTRY_REMOTE_TAG_MASK  (0x0000FFFF)
-#define SCU_IIT_ENTRY_REMOTE_TAG_SHIFT (0)
-
-#define SCU_IIT_ENTRY_REMOTE_RNC_MASK  (0x0FFF0000)
-#define SCU_IIT_ENTRY_REMOTE_RNC_SHIFT (16)
-
-#define SCU_IIT_ENTRY_ID_INVALID   (0 << SCU_IIT_ENTRY_ID_SHIFT)
-#define SCU_IIT_ENTRY_ID_VIIT      (1 << SCU_IIT_ENTRY_ID_SHIFT)
-#define SCU_IIT_ENTRY_ID_IIT       (2 << SCU_IIT_ENTRY_ID_SHIFT)
-#define SCU_IIT_ENTRY_ID_VIRT_EXP  (3 << SCU_IIT_ENTRY_ID_SHIFT)
-
-/**
- * struct scu_iit_entry - This will be implemented later when we support
- *    virtual functions
- *
- *
- */
-struct scu_iit_entry {
-	u32 status;
-	u32 remote_initiator_sas_address_hi;
-	u32 remote_initiator_sas_address_lo;
-	u32 remote_initiator;
-
-};
-
-#endif /* _SCU_VIIT_DATA_HEADER_ */

drivers/scsi/isci/host.c

@@ -66,7 +66,7 @@
 #include "sci_util.h"
 #include "scu_completion_codes.h"
 #include "scu_event_codes.h"
-#include "scu_registers.h"
+#include "registers.h"
 #include "scu_remote_node_context.h"
 #include "scu_task_context.h"
 #include "scu_unsolicited_frame.h"

drivers/scsi/isci/host.h

@@ -61,9 +61,9 @@
 #include "pool.h"
 #include "sci_base_state_machine.h"
 #include "remote_node_table.h"
-#include "scu_registers.h"
+#include "registers.h"
 #include "scu_unsolicited_frame.h"
-#include "scic_sds_unsolicited_frame_control.h"
+#include "unsolicited_frame_control.h"
 #include "scic_sds_port_configuration_agent.h"
 
 struct scic_sds_request;

drivers/scsi/isci/core/scu_registers.h → drivers/scsi/isci/registers.h

@@ -63,8 +63,116 @@
  *
  */
 
-#include "scu_viit_data.h"
+#define SCU_VIIT_ENTRY_ID_MASK         (0xC0000000)
+#define SCU_VIIT_ENTRY_ID_SHIFT        (30)
 
+#define SCU_VIIT_ENTRY_FUNCTION_MASK   (0x0FF00000)
+#define SCU_VIIT_ENTRY_FUNCTION_SHIFT  (20)
+
+#define SCU_VIIT_ENTRY_IPPTMODE_MASK   (0x0001F800)
+#define SCU_VIIT_ENTRY_IPPTMODE_SHIFT  (12)
+
+#define SCU_VIIT_ENTRY_LPVIE_MASK      (0x00000F00)
+#define SCU_VIIT_ENTRY_LPVIE_SHIFT     (8)
+
+#define SCU_VIIT_ENTRY_STATUS_MASK     (0x000000FF)
+#define SCU_VIIT_ENTRY_STATUS_SHIFT    (0)
+
+#define SCU_VIIT_ENTRY_ID_INVALID   (0 << SCU_VIIT_ENTRY_ID_SHIFT)
+#define SCU_VIIT_ENTRY_ID_VIIT      (1 << SCU_VIIT_ENTRY_ID_SHIFT)
+#define SCU_VIIT_ENTRY_ID_IIT       (2 << SCU_VIIT_ENTRY_ID_SHIFT)
+#define SCU_VIIT_ENTRY_ID_VIRT_EXP  (3 << SCU_VIIT_ENTRY_ID_SHIFT)
+
+#define SCU_VIIT_IPPT_SSP_INITIATOR (0x01 << SCU_VIIT_ENTRY_IPPTMODE_SHIFT)
+#define SCU_VIIT_IPPT_SMP_INITIATOR (0x02 << SCU_VIIT_ENTRY_IPPTMODE_SHIFT)
+#define SCU_VIIT_IPPT_STP_INITIATOR (0x04 << SCU_VIIT_ENTRY_IPPTMODE_SHIFT)
+#define SCU_VIIT_IPPT_INITIATOR	    \
+	(\
+		SCU_VIIT_IPPT_SSP_INITIATOR  \
+		| SCU_VIIT_IPPT_SMP_INITIATOR  \
+		| SCU_VIIT_IPPT_STP_INITIATOR  \
+	)
+
+#define SCU_VIIT_STATUS_RNC_VALID      (0x01 << SCU_VIIT_ENTRY_STATUS_SHIFT)
+#define SCU_VIIT_STATUS_ADDRESS_VALID  (0x02 << SCU_VIIT_ENTRY_STATUS_SHIFT)
+#define SCU_VIIT_STATUS_RNI_VALID      (0x04 << SCU_VIIT_ENTRY_STATUS_SHIFT)
+#define SCU_VIIT_STATUS_ALL_VALID      \
+	(\
+		SCU_VIIT_STATUS_RNC_VALID	\
+		| SCU_VIIT_STATUS_ADDRESS_VALID	  \
+		| SCU_VIIT_STATUS_RNI_VALID	  \
+	)
+
+#define SCU_VIIT_IPPT_SMP_TARGET    (0x10 << SCU_VIIT_ENTRY_IPPTMODE_SHIFT)
+
+/**
+ * struct scu_viit_entry - This is the SCU Virtual Initiator Table Entry
+ *
+ *
+ */
+struct scu_viit_entry {
+	/**
+	 * This must be encoded as to the type of initiator that is being constructed
+	 * for this port.
+	 */
+	u32 status;
+
+	/**
+	 * Virtual initiator high SAS Address
+	 */
+	u32 initiator_sas_address_hi;
+
+	/**
+	 * Virtual initiator low SAS Address
+	 */
+	u32 initiator_sas_address_lo;
+
+	/**
+	 * This must be 0
+	 */
+	u32 reserved;
+
+};
+
+
+/* IIT Status Defines */
+#define SCU_IIT_ENTRY_ID_MASK                (0xC0000000)
+#define SCU_IIT_ENTRY_ID_SHIFT               (30)
+
+#define SCU_IIT_ENTRY_STATUS_UPDATE_MASK     (0x20000000)
+#define SCU_IIT_ENTRY_STATUS_UPDATE_SHIFT    (29)
+
+#define SCU_IIT_ENTRY_LPI_MASK               (0x00000F00)
+#define SCU_IIT_ENTRY_LPI_SHIFT              (8)
+
+#define SCU_IIT_ENTRY_STATUS_MASK            (0x000000FF)
+#define SCU_IIT_ENTRY_STATUS_SHIFT           (0)
+
+/* IIT Remote Initiator Defines */
+#define SCU_IIT_ENTRY_REMOTE_TAG_MASK  (0x0000FFFF)
+#define SCU_IIT_ENTRY_REMOTE_TAG_SHIFT (0)
+
+#define SCU_IIT_ENTRY_REMOTE_RNC_MASK  (0x0FFF0000)
+#define SCU_IIT_ENTRY_REMOTE_RNC_SHIFT (16)
+
+#define SCU_IIT_ENTRY_ID_INVALID   (0 << SCU_IIT_ENTRY_ID_SHIFT)
+#define SCU_IIT_ENTRY_ID_VIIT      (1 << SCU_IIT_ENTRY_ID_SHIFT)
+#define SCU_IIT_ENTRY_ID_IIT       (2 << SCU_IIT_ENTRY_ID_SHIFT)
+#define SCU_IIT_ENTRY_ID_VIRT_EXP  (3 << SCU_IIT_ENTRY_ID_SHIFT)
+
+/**
+ * struct scu_iit_entry - This will be implemented later when we support
+ *    virtual functions
+ *
+ *
+ */
+struct scu_iit_entry {
+	u32 status;
+	u32 remote_initiator_sas_address_hi;
+	u32 remote_initiator_sas_address_lo;
+	u32 remote_initiator;
+
+};
 
 /* Generate a value for an SCU register */
 #define SCU_GEN_VALUE(name, value) \

drivers/scsi/isci/core/scic_sds_unsolicited_frame_control.c → drivers/scsi/isci/unsolicited_frame_control.c

@@ -54,8 +54,8 @@
  */
 
 #include "host.h"
-#include "scic_sds_unsolicited_frame_control.h"
-#include "scu_registers.h"
+#include "unsolicited_frame_control.h"
+#include "registers.h"
 #include "sci_util.h"
 
 /**