isci: remove base_port abstraction (41e2b905) · Commits · e / devices / android_kernel_xiaomi_nabu

drivers/scsi/isci/core/sci_base_port.h

deleted100644 → 0

+0 −187

Original line number	Diff line number	Diff line
		/*
		* 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 _SCI_BASE_PORT_H_
		#define _SCI_BASE_PORT_H_

		#include "sci_base_state_machine.h"
		#include "sci_object.h"

		/**
		* enum sci_base_port_states - This enumeration depicts all the states for the
		* common port state machine.
		*
		*
		*/
		enum sci_base_port_states {
		/**
		* This state indicates that the port has successfully been stopped.
		* In this state no new IO operations are permitted.
		* This state is entered from the STOPPING state.
		*/
		SCI_BASE_PORT_STATE_STOPPED,

		/**
		* This state indicates that the port is in the process of stopping.
		* In this state no new IO operations are permitted, but existing IO
		* operations are allowed to complete.
		* This state is entered from the READY state.
		*/
		SCI_BASE_PORT_STATE_STOPPING,

		/**
		* This state indicates the port is now ready. Thus, the user is
		* able to perform IO operations on this port.
		* This state is entered from the STARTING state.
		*/
		SCI_BASE_PORT_STATE_READY,

		/**
		* This state indicates the port is in the process of performing a hard
		* reset. Thus, the user is unable to perform IO operations on this
		* port.
		* This state is entered from the READY state.
		*/
		SCI_BASE_PORT_STATE_RESETTING,

		/**
		* This state indicates the port has failed a reset request. This state
		* is entered when a port reset request times out.
		* This state is entered from the RESETTING state.
		*/
		SCI_BASE_PORT_STATE_FAILED,

		SCI_BASE_PORT_MAX_STATES

		};

		/**
		* struct sci_base_port - The base port object abstracts the fields common to
		* all SCI port objects.
		*
		*
		*/
		struct sci_base_port {
		/**
		* The field specifies that the parent object for the base controller
		* is the base object itself.
		*/
		struct sci_base_object parent;

		/**
		* This field contains the information for the base port state machine.
		*/
		struct sci_base_state_machine state_machine;
		};

		struct sci_base_phy;

		typedef enum sci_status (*sci_base_port_handler_t) (
		struct sci_base_port *);

		typedef enum sci_status (*sci_base_port_phy_handler_t) (
		struct sci_base_port *,
		struct sci_base_phy *);

		typedef enum sci_status (*sci_base_port_reset_handler_t) (
		struct sci_base_port *,
		u32 timeout);

		/**
		* struct sci_base_port_state_handler - This structure contains all of the
		* state handler methods common to base port state machines. Handler
		* methods provide the ability to change the behavior for user requests or
		* transitions depending on the state the machine is in.
		*
		*
		*/
		struct sci_base_port_state_handler {
		/**
		* The start_handler specifies the method invoked when a user
		* attempts to start a port.
		*/
		sci_base_port_handler_t start_handler;

		/**
		* The stop_handler specifies the method invoked when a user
		* attempts to stop a port.
		*/
		sci_base_port_handler_t stop_handler;

		/**
		* The destruct_handler specifies the method invoked when attempting to
		* destruct a port.
		*/
		sci_base_port_handler_t destruct_handler;

		/**
		* The reset_handler specifies the method invoked when a user
		* attempts to hard reset a port.
		*/
		sci_base_port_reset_handler_t reset_handler;

		/**
		* The add_phy_handler specifies the method invoked when a user
		* attempts to add another phy into the port.
		*/
		sci_base_port_phy_handler_t add_phy_handler;

		/**
		* The remove_phy_handler specifies the method invoked when a user
		* attempts to remove a phy from the port.
		*/
		sci_base_port_phy_handler_t remove_phy_handler;
		};
		#endif /* _SCI_BASE_PORT_H_ */

drivers/scsi/isci/core/scic_sds_controller.c

+5 −5

Original line number	Diff line number	Diff line
		@@ -616,10 +616,10 @@ static enum sci_status scic_sds_controller_stop_ports(struct scic_sds_controller

		for (index = 0; index < scic->logical_port_entries; index++) {
		struct scic_sds_port *sci_port = &scic->port_table[index];
		sci_base_port_handler_t stop;
		scic_sds_port_handler_t stop;

		stop = sci_port->state_handlers->parent.stop_handler;
		port_status = stop(&sci_port->parent);
		stop = sci_port->state_handlers->stop_handler;
		port_status = stop(sci_port);

		if ((port_status != SCI_SUCCESS) &&
		(port_status != SCI_FAILURE_INVALID_STATE)) {
		@@ -2860,8 +2860,8 @@ enum sci_status scic_controller_start(struct scic_sds_controller *scic,
		for (index = 0; index < scic->logical_port_entries; index++) {
		struct scic_sds_port *sci_port = &scic->port_table[index];

		result = sci_port->state_handlers->parent.start_handler(
		&sci_port->parent);
		result = sci_port->state_handlers->start_handler(
		sci_port);
		if (result)
		return result;
		}

drivers/scsi/isci/core/scic_sds_port.c

+172 −270

File changed.

Preview size limit exceeded, changes collapsed.

drivers/scsi/isci/core/scic_sds_port.h

+107 −61

Original line number	Diff line number	Diff line
		@@ -56,22 +56,19 @@
		#ifndef _SCIC_SDS_PORT_H_
		#define _SCIC_SDS_PORT_H_

		/**
		* This file contains the structures, constants and prototypes for the
		* struct scic_sds_port object.
		*
		*
		*/

		#include <linux/kernel.h>
		#include "sci_controller_constants.h"
		#include "intel_sas.h"
		#include "sci_base_port.h"
		#include "sci_base_phy.h"
		#include "scu_registers.h"

		#define SCIC_SDS_DUMMY_PORT 0xFF

		struct scic_sds_controller;
		struct scic_sds_phy;
		struct scic_sds_remote_device;
		struct scic_sds_request;

		/**
		* This constant defines the value utilized by SCI Components to indicate
		* an invalid handle.
		@@ -107,10 +104,53 @@ enum scic_sds_port_ready_substates {
		SCIC_SDS_PORT_READY_MAX_SUBSTATES
		};

		struct scic_sds_controller;
		struct scic_sds_phy;
		struct scic_sds_remote_device;
		struct scic_sds_request;
		/**
		* enum scic_sds_port_states - This enumeration depicts all the states for the
		* common port state machine.
		*
		*
		*/
		enum scic_sds_port_states {
		/**
		* This state indicates that the port has successfully been stopped.
		* In this state no new IO operations are permitted.
		* This state is entered from the STOPPING state.
		*/
		SCI_BASE_PORT_STATE_STOPPED,

		/**
		* This state indicates that the port is in the process of stopping.
		* In this state no new IO operations are permitted, but existing IO
		* operations are allowed to complete.
		* This state is entered from the READY state.
		*/
		SCI_BASE_PORT_STATE_STOPPING,

		/**
		* This state indicates the port is now ready. Thus, the user is
		* able to perform IO operations on this port.
		* This state is entered from the STARTING state.
		*/
		SCI_BASE_PORT_STATE_READY,

		/**
		* This state indicates the port is in the process of performing a hard
		* reset. Thus, the user is unable to perform IO operations on this
		* port.
		* This state is entered from the READY state.
		*/
		SCI_BASE_PORT_STATE_RESETTING,

		/**
		* This state indicates the port has failed a reset request. This state
		* is entered when a port reset request times out.
		* This state is entered from the RESETTING state.
		*/
		SCI_BASE_PORT_STATE_FAILED,

		SCI_BASE_PORT_MAX_STATES

		};

		/**
		* struct scic_sds_port -
		@@ -119,9 +159,15 @@ struct scic_sds_request;
		*/
		struct scic_sds_port {
		/**
		* This field is the oommon base port object.
		* The field specifies that the parent object for the base controller
		* is the base object itself.
		*/
		struct sci_base_port parent;
		struct sci_base_object parent;

		/**
		* This field contains the information for the base port state machine.
		*/
		struct sci_base_state_machine state_machine;

		/**
		* This field is the port index that is reported to the SCI USER.
		@@ -214,6 +260,15 @@ struct scic_sds_port {

		};

		struct sci_base_phy;

		typedef enum sci_status (scic_sds_port_handler_t)(struct scic_sds_port );

		typedef enum sci_status (scic_sds_port_phy_handler_t)(struct scic_sds_port ,
		struct sci_base_phy *);

		typedef enum sci_status (scic_sds_port_reset_handler_t)(struct scic_sds_port ,
		u32 timeout);

		typedef enum sci_status (scic_sds_port_event_handler_t)(struct scic_sds_port , u32);

		@@ -221,13 +276,46 @@ typedef enum sci_status (scic_sds_port_frame_handler_t)(struct scic_sds_port ,

		typedef void (scic_sds_port_link_handler_t)(struct scic_sds_port , struct scic_sds_phy *);

		typedef enum sci_status (*scic_sds_port_io_request_handler_t)(
		struct scic_sds_port *,
		typedef enum sci_status (scic_sds_port_io_request_handler_t)(struct scic_sds_port ,
		struct scic_sds_remote_device *,
		struct scic_sds_request *);

		struct scic_sds_port_state_handler {
		struct sci_base_port_state_handler parent;
		/**
		* The start_handler specifies the method invoked when a user
		* attempts to start a port.
		*/
		scic_sds_port_handler_t start_handler;

		/**
		* The stop_handler specifies the method invoked when a user
		* attempts to stop a port.
		*/
		scic_sds_port_handler_t stop_handler;

		/**
		* The destruct_handler specifies the method invoked when attempting to
		* destruct a port.
		*/
		scic_sds_port_handler_t destruct_handler;

		/**
		* The reset_handler specifies the method invoked when a user
		* attempts to hard reset a port.
		*/
		scic_sds_port_reset_handler_t reset_handler;

		/**
		* The add_phy_handler specifies the method invoked when a user
		* attempts to add another phy into the port.
		*/
		scic_sds_port_phy_handler_t add_phy_handler;

		/**
		* The remove_phy_handler specifies the method invoked when a user
		* attempts to remove a phy from the port.
		*/
		scic_sds_port_phy_handler_t remove_phy_handler;

		scic_sds_port_frame_handler_t frame_handler;
		scic_sds_port_event_handler_t event_handler;
		@@ -292,15 +380,6 @@ static inline void scic_sds_port_decrement_request_count(struct scic_sds_port *s
		#define scic_sds_port_active_phy(port, phy) \
		(((port)->active_phy_mask & (1 << (phy)->phy_index)) != 0)

		/* --------------------------------------------------------------------------- */




		/* --------------------------------------------------------------------------- */

		/* --------------------------------------------------------------------------- */

		void scic_sds_port_construct(
		struct scic_sds_port *this_port,
		u8 port_index,
		@@ -312,8 +391,6 @@ enum sci_status scic_sds_port_initialize(
		void __iomem *port_configuration_regsiter,
		void __iomem *viit_registers);

		/* --------------------------------------------------------------------------- */

		enum sci_status scic_sds_port_add_phy(
		struct scic_sds_port *this_port,
		struct scic_sds_phy *the_phy);
		@@ -332,9 +409,6 @@ void scic_sds_port_deactivate_phy(
		struct scic_sds_phy *phy,
		bool do_notify_user);




		bool scic_sds_port_link_detected(
		struct scic_sds_port *this_port,
		struct scic_sds_phy *phy);
		@@ -347,11 +421,6 @@ void scic_sds_port_link_down(
		struct scic_sds_port *this_port,
		struct scic_sds_phy *phy);

		/* --------------------------------------------------------------------------- */


		/* --------------------------------------------------------------------------- */

		enum sci_status scic_sds_port_start_io(
		struct scic_sds_port *this_port,
		struct scic_sds_remote_device *the_device,
		@@ -362,23 +431,6 @@ enum sci_status scic_sds_port_complete_io(
		struct scic_sds_remote_device *the_device,
		struct scic_sds_request *the_io_request);

		/* --------------------------------------------------------------------------- */


		/* --------------------------------------------------------------------------- */













		enum sci_sas_link_rate scic_sds_port_get_max_allowed_speed(
		struct scic_sds_port *this_port);

		@@ -390,8 +442,6 @@ bool scic_sds_port_is_valid_phy_assignment(
		struct scic_sds_port *this_port,
		u32 phy_index);



		void scic_sds_port_get_sas_address(
		struct scic_sds_port *this_port,
		struct sci_sas_address *sas_address);
		@@ -404,8 +454,4 @@ void scic_sds_port_get_attached_protocols(
		struct scic_sds_port *this_port,
		struct sci_sas_identify_address_frame_protocols *protocols);





		#endif /* _SCIC_SDS_PORT_H_ */

drivers/scsi/isci/core/scic_sds_port_configuration_agent.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -700,7 +700,7 @@ static void scic_sds_apc_agent_link_up(struct scic_sds_controller *scic,
		scic_sds_apc_agent_configure_ports(scic, port_agent, sci_phy, true);
		} else {
		/* the phy is already the part of the port */
		u32 port_state = sci_port->parent.state_machine.current_state_id;
		u32 port_state = sci_port->state_machine.current_state_id;

		/* if the PORT'S state is resetting then the link up is from
		* port hard reset in this case, we need to tell the port