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Commit 41e2b905 authored by Maciej Trela's avatar Maciej Trela Committed by Dan Williams
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isci: remove base_port abstraction 

Merge struct sci_base_port into scic_sds_port.  Until now sci_base_port
was referenced indirectly with scic_sds_port->parent field.

'sci_base_port' state machine handlers were also incorporated into
scic_sds_port handlers.
Reported-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarMaciej Trela <Maciej.Trela@intel.com>
Signed-off-by: default avatarMaciej Patelczyk <maciej.patelczyk@intel.com>
Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
parent 0ea99d52
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drivers/scsi/isci/core/sci_base_port.h deleted 100644 → 0
View file @ 0ea99d52
/*
* 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
View file @ 41e2b905
......@@ -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
View file @ 41e2b905
This diff is collapsed.
drivers/scsi/isci/core/scic_sds_port.h
View file @ 41e2b905
......@@ -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
View file @ 41e2b905
......@@ -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
......
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