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isci: move remote_device handling out of the core 

Now that the core/lldd remote_device data structures are nominally unified
merge the corresponding sources into the top-level directory.  Also move the
remote_node_context infrastructure which has no analog at the lldd level.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams 2011-04-22 19:18:03 -07:00
parent 57f20f4ed6
commit 88f3b62ac1
30 changed files with 2325 additions and 2758 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/scsi/isci/Makefile
View File

@ -10,20 +10,19 @@ obj-$(CONFIG_SCSI_ISCI) += isci.o
isci-objs := init.o phy.o request.o sata.o \
remote_device.o port.o timers.o \
host.o task.o probe_roms.o \
stp_remote_device.o \
smp_remote_device.o \
remote_node_context.o \
remote_node_table.o \
core/scic_sds_controller.o \
core/scic_sds_remote_device.o \
core/scic_sds_request.o \
core/scic_sds_stp_request.o \
core/scic_sds_stp_packet_request.o \
core/scic_sds_stp_remote_device.o \
core/scic_sds_port.o \
core/scic_sds_port_configuration_agent.o \
core/scic_sds_phy.o \
core/scic_sds_ssp_request.o \
core/scic_sds_remote_node_context.o \
core/scic_sds_smp_request.o \
core/scic_sds_smp_remote_device.o \
core/scic_sds_remote_node_table.o \
core/scic_sds_unsolicited_frame_control.o \
core/sci_base_state_machine.o \
core/sci_util.o

282
drivers/scsi/isci/core/scic_remote_device.h
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@ -1,282 +0,0 @@
/*
* 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_REMOTE_DEVICE_H_
#define _SCIC_REMOTE_DEVICE_H_
/**
* This file contains all of the interface methods that can be called by an
* SCIC user on the device object.
*
*
*/
#include "sci_status.h"
#include "intel_sas.h"
struct scic_sds_port;
struct scic_sds_remote_device;
/**
*
*
*
*/
enum scic_remote_device_not_ready_reason_code {
SCIC_REMOTE_DEVICE_NOT_READY_START_REQUESTED,
SCIC_REMOTE_DEVICE_NOT_READY_STOP_REQUESTED,
SCIC_REMOTE_DEVICE_NOT_READY_SATA_REQUEST_STARTED,
SCIC_REMOTE_DEVICE_NOT_READY_SATA_SDB_ERROR_FIS_RECEIVED,
SCIC_REMOTE_DEVICE_NOT_READY_SMP_REQUEST_STARTED,
SCIC_REMOTE_DEVICE_NOT_READY_REASON_CODE_MAX
};
/**
* scic_remote_device_construct() - This method will perform the construction
* common to all remote device objects.
* @sci_port: SAS/SATA port through which this device is accessed.
* @sci_dev: remote device to construct
*
* It isn't necessary to call scic_remote_device_destruct() for device objects
* that have only called this method for construction. Once subsequent
* construction methods have been invoked (e.g.
* scic_remote_device_da_construct()), then destruction should occur. none
*/
void scic_remote_device_construct(struct scic_sds_port *sci_port,
struct scic_sds_remote_device *sci_dev);
/**
* scic_remote_device_da_construct() - This method will construct a
* SCIC_REMOTE_DEVICE object for a direct attached (da) device. The
* information (e.g. IAF, Signature FIS, etc.) necessary to build the device
* is known to the SCI Core since it is contained in the scic_phy object.
* @remote_device: This parameter specifies the remote device to be destructed.
*
* The user must have previously called scic_remote_device_construct() Remote
* device objects are a limited resource. As such, they must be protected.
* Thus calls to construct and destruct are mutually exclusive and
* non-reentrant. Indicate if the remote device was successfully constructed.
* SCI_SUCCESS Returned if the device was successfully constructed.
* SCI_FAILURE_DEVICE_EXISTS Returned if the device has already been
* constructed. If it's an additional phy for the target, then call
* scic_remote_device_da_add_phy(). SCI_FAILURE_UNSUPPORTED_PROTOCOL Returned
* if the supplied parameters necessitate creation of a remote device for which
* the protocol is not supported by the underlying controller hardware.
* SCI_FAILURE_INSUFFICIENT_RESOURCES This value is returned if the core
* controller associated with the supplied parameters is unable to support
* additional remote devices.
*/
enum sci_status scic_remote_device_da_construct(
struct scic_sds_remote_device *remote_device);
/**
* scic_remote_device_ea_construct() - This method will construct an
* SCIC_REMOTE_DEVICE object for an expander attached (ea) device from an
* SMP Discover Response.
* @remote_device: This parameter specifies the remote device to be destructed.
* @discover_response: This parameter specifies the SMP Discovery Response to
* be used in device creation.
*
* The user must have previously called scic_remote_device_construct() Remote
* device objects are a limited resource. As such, they must be protected.
* Thus calls to construct and destruct are mutually exclusive and
* non-reentrant. Indicate if the remote device was successfully constructed.
* SCI_SUCCESS Returned if the device was successfully constructed.
* SCI_FAILURE_DEVICE_EXISTS Returned if the device has already been
* constructed. If it's an additional phy for the target, then call
* scic_ea_remote_device_add_phy(). SCI_FAILURE_UNSUPPORTED_PROTOCOL Returned
* if the supplied parameters necessitate creation of a remote device for which
* the protocol is not supported by the underlying controller hardware.
* SCI_FAILURE_INSUFFICIENT_RESOURCES This value is returned if the core
* controller associated with the supplied parameters is unable to support
* additional remote devices.
*/
enum sci_status scic_remote_device_ea_construct(
struct scic_sds_remote_device *remote_device,
struct smp_response_discover *discover_response);
/**
* scic_remote_device_destruct() - This method is utilized to free up a core's
* remote device object.
* @remote_device: This parameter specifies the remote device to be destructed.
*
* Remote device objects are a limited resource. As such, they must be
* protected. Thus calls to construct and destruct are mutually exclusive and
* non-reentrant. The return value shall indicate if the device was
* successfully destructed or if some failure occurred. enum sci_status This value
* is returned if the device is successfully destructed.
* SCI_FAILURE_INVALID_REMOTE_DEVICE This value is returned if the supplied
* device isn't valid (e.g. it's already been destoryed, the handle isn't
* valid, etc.).
*/
enum sci_status scic_remote_device_destruct(
struct scic_sds_remote_device *remote_device);
/**
* scic_remote_device_start() - This method will start the supplied remote
* device. This method enables normal IO requests to flow through to the
* remote device.
* @remote_device: This parameter specifies the device to be started.
* @timeout: This parameter specifies the number of milliseconds in which the
* start operation should complete.
*
* An indication of whether the device was successfully started. SCI_SUCCESS
* This value is returned if the device was successfully started.
* SCI_FAILURE_INVALID_PHY This value is returned if the user attempts to start
* the device when there have been no phys added to it.
*/
enum sci_status scic_remote_device_start(
struct scic_sds_remote_device *remote_device,
u32 timeout);
/**
* scic_remote_device_stop() - This method will stop both transmission and
* reception of link activity for the supplied remote device. This method
* disables normal IO requests from flowing through to the remote device.
* @remote_device: This parameter specifies the device to be stopped.
* @timeout: This parameter specifies the number of milliseconds in which the
* stop operation should complete.
*
* An indication of whether the device was successfully stopped. SCI_SUCCESS
* This value is returned if the transmission and reception for the device was
* successfully stopped.
*/
enum sci_status scic_remote_device_stop(
struct scic_sds_remote_device *remote_device,
u32 timeout);
/**
* scic_remote_device_reset() - This method will reset the device making it
* ready for operation. This method must be called anytime the device is
* reset either through a SMP phy control or a port hard reset request.
* @remote_device: This parameter specifies the device to be reset.
*
* This method does not actually cause the device hardware to be reset. This
* method resets the software object so that it will be operational after a
* device hardware reset completes. An indication of whether the device reset
* was accepted. SCI_SUCCESS This value is returned if the device reset is
* started.
*/
enum sci_status scic_remote_device_reset(
struct scic_sds_remote_device *remote_device);
/**
* scic_remote_device_reset_complete() - This method informs the device object
* that the reset operation is complete and the device can resume operation
* again.
* @remote_device: This parameter specifies the device which is to be informed
* of the reset complete operation.
*
* An indication that the device is resuming operation. SCI_SUCCESS the device
* is resuming operation.
*/
enum sci_status scic_remote_device_reset_complete(
struct scic_sds_remote_device *remote_device);
/**
* scic_remote_device_get_connection_rate() - This method simply returns the
* link rate at which communications to the remote device occur.
* @remote_device: This parameter specifies the device for which to get the
* connection rate.
*
* Return the link rate at which we transfer for the supplied remote device.
*/
enum sas_linkrate scic_remote_device_get_connection_rate(
struct scic_sds_remote_device *remote_device);
/**
* scic_remote_device_get_protocols() - This method will indicate which
* protocols are supported by this remote device.
* @remote_device: This parameter specifies the device for which to return the
* protocol.
* @protocols: This parameter specifies the output values, from the remote
* device object, which indicate the protocols supported by the supplied
* remote_device.
*
* The type of protocols supported by this device. The values are returned as
* part of a bit mask in order to allow for multi-protocol support.
*/
void scic_remote_device_get_protocols(
struct scic_sds_remote_device *remote_device,
struct smp_discover_response_protocols *protocols);
#if !defined(DISABLE_ATAPI)
/**
* scic_remote_device_is_atapi() -
* @this_device: The device whose type is to be decided.
*
* This method first decide whether a device is a stp target, then decode the
* signature fis of a DA STP device to tell whether it is a standard end disk
* or an ATAPI device. bool Indicate a device is ATAPI device or not.
*/
bool scic_remote_device_is_atapi(
struct scic_sds_remote_device *device_handle);
#else /* !defined(DISABLE_ATAPI) */
#define scic_remote_device_is_atapi(device_handle) false
#endif /* !defined(DISABLE_ATAPI) */
#endif /* _SCIC_REMOTE_DEVICE_H_ */

3
drivers/scsi/isci/core/scic_sds_controller.c
View File

@ -57,13 +57,12 @@
#include "scic_controller.h"
#include "scic_phy.h"
#include "scic_port.h"
#include "scic_remote_device.h"
#include "scic_sds_controller.h"
#include "scu_registers.h"
#include "scic_sds_phy.h"
#include "scic_sds_port_configuration_agent.h"
#include "scic_sds_port.h"
#include "scic_sds_remote_device.h"
#include "remote_device.h"
#include "scic_sds_request.h"
#include "sci_environment.h"
#include "sci_util.h"

2
drivers/scsi/isci/core/scic_sds_controller.h
View File

@ -73,7 +73,7 @@
#include "scic_config_parameters.h"
#include "scic_sds_port.h"
#include "scic_sds_phy.h"
#include "scic_sds_remote_node_table.h"
#include "remote_node_table.h"
#include "scu_registers.h"
#include "scu_constants.h"
#include "scu_remote_node_context.h"

2
drivers/scsi/isci/core/scic_sds_phy.c
View File

@ -61,7 +61,7 @@
#include "scic_sds_controller.h"
#include "scic_sds_phy.h"
#include "scic_sds_port.h"
#include "scic_sds_remote_node_context.h"
#include "remote_node_context.h"
#include "sci_environment.h"
#include "sci_util.h"
#include "scu_event_codes.h"

4
drivers/scsi/isci/core/scic_sds_port.c
View File

@ -60,8 +60,8 @@
#include "scic_sds_controller.h"
#include "scic_sds_phy.h"
#include "scic_sds_port.h"
#include "scic_sds_remote_device.h"
#include "scic_sds_remote_node_context.h"
#include "remote_device.h"
#include "remote_node_context.h"
#include "scic_sds_request.h"
#include "sci_environment.h"
#include "scu_registers.h"

1664
drivers/scsi/isci/core/scic_sds_remote_device.c
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File diff suppressed because it is too large Load Diff

694
drivers/scsi/isci/core/scic_sds_remote_device.h
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@ -1,694 +0,0 @@
/*
* 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_REMOTE_DEVICE_H_
#define _SCIC_SDS_REMOTE_DEVICE_H_
#include "intel_sas.h"
#include "scu_remote_node_context.h"
#include "scic_sds_remote_node_context.h"
#include <scsi/libsas.h>
/**
* enum scic_sds_remote_device_states - This enumeration depicts all the states
* for the common remote device state machine.
*
*
*/
enum scic_sds_remote_device_states {
/**
* Simply the initial state for the base remote device state machine.
*/
SCI_BASE_REMOTE_DEVICE_STATE_INITIAL,
/**
* This state indicates that the remote device has successfully been
* stopped. In this state no new IO operations are permitted.
* This state is entered from the INITIAL state.
* This state is entered from the STOPPING state.
*/
SCI_BASE_REMOTE_DEVICE_STATE_STOPPED,
/**
* This state indicates the the remote device is in the process of
* becoming ready (i.e. starting). In this state no new IO operations
* are permitted.
* This state is entered from the STOPPED state.
*/
SCI_BASE_REMOTE_DEVICE_STATE_STARTING,
/**
* This state indicates the remote device is now ready. Thus, the user
* is able to perform IO operations on the remote device.
* This state is entered from the STARTING state.
*/
SCI_BASE_REMOTE_DEVICE_STATE_READY,
/**
* This state indicates that the remote device 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.
* This state is entered from the FAILED state.
*/
SCI_BASE_REMOTE_DEVICE_STATE_STOPPING,
/**
* This state indicates that the remote device has failed.
* In this state no new IO operations are permitted.
* This state is entered from the INITIALIZING state.
* This state is entered from the READY state.
*/
SCI_BASE_REMOTE_DEVICE_STATE_FAILED,
/**
* This state indicates the device is being reset.
* In this state no new IO operations are permitted.
* This state is entered from the READY state.
*/
SCI_BASE_REMOTE_DEVICE_STATE_RESETTING,
/**
* Simply the final state for the base remote device state machine.
*/
SCI_BASE_REMOTE_DEVICE_STATE_FINAL,
};
/**
* enum scic_sds_ssp_remote_device_ready_substates -
*
* This is the enumeration of the ready substates for the
* struct scic_sds_remote_device.
*/
enum scic_sds_ssp_remote_device_ready_substates {
/**
* This is the initial state for the remote device ready substate.
*/
SCIC_SDS_SSP_REMOTE_DEVICE_READY_SUBSTATE_INITIAL,
/**
* This is the ready operational substate for the remote device.
* This is the normal operational state for a remote device.
*/
SCIC_SDS_SSP_REMOTE_DEVICE_READY_SUBSTATE_OPERATIONAL,
/**
* This is the suspended state for the remote device. This is the state
* that the device is placed in when a RNC suspend is received by
* the SCU hardware.
*/
SCIC_SDS_SSP_REMOTE_DEVICE_READY_SUBSTATE_SUSPENDED,
/**
* This is the final state that the device is placed in before a change
* to the base state machine.
*/
SCIC_SDS_SSP_REMOTE_DEVICE_READY_SUBSTATE_FINAL,
SCIC_SDS_SSP_REMOTE_DEVICE_READY_MAX_SUBSTATES
};
/**
* enum scic_sds_stp_remote_device_ready_substates -
*
* This is the enumeration for the struct scic_sds_remote_device ready substates
* for the STP remote device.
*/
enum scic_sds_stp_remote_device_ready_substates {
/**
* This is the idle substate for the stp remote device. When there are no
* active IO for the device it is is in this state.
*/
SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE,
/**
* This is the command state for for the STP remote device. This state is
* entered when the device is processing a non-NCQ command. The device object
* will fail any new start IO requests until this command is complete.
*/
SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD,
/**
* This is the NCQ state for the STP remote device. This state is entered
* when the device is processing an NCQ reuqest. It will remain in this state
* so long as there is one or more NCQ requests being processed.
*/
SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ,
/**
* This is the NCQ error state for the STP remote device. This state is
* entered when an SDB error FIS is received by the device object while in the
* NCQ state. The device object will only accept a READ LOG command while in
* this state.
*/
SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR,
#if !defined(DISABLE_ATAPI)
/**
* This is the ATAPI error state for the STP ATAPI remote device. This state is
* entered when ATAPI device sends error status FIS without data while the device
* object is in CMD state. A suspension event is expected in this state. The device
* object will resume right away.
*/
SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_ATAPI_ERROR,
#endif
/**
* This is the READY substate indicates the device is waiting for the RESET task
* coming to be recovered from certain hardware specific error.
*/
SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET,
};
/**
* enum scic_sds_smp_remote_device_ready_substates -
*
* This is the enumeration of the ready substates for the SMP REMOTE DEVICE.
*/
enum scic_sds_smp_remote_device_ready_substates {
/**
* This is the ready operational substate for the remote device. This is the
* normal operational state for a remote device.
*/
SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE,
/**
* This is the suspended state for the remote device. This is the state that
* the device is placed in when a RNC suspend is received by the SCU hardware.
*/
SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD,
};
/**
* struct scic_sds_remote_device - This structure contains the data for an SCU
* implementation of the SCU Core device data.
*
*
*/
struct scic_sds_remote_device {
/**
* The field specifies that the parent object for the base remote
* device is the base object itself.
*/
struct sci_base_object parent;
/**
* This field contains the information for the base remote device state
* machine.
*/
struct sci_base_state_machine state_machine;
/**
* This field is the programmed device port width. This value is
* written to the RCN data structure to tell the SCU how many open
* connections this device can have.
*/
u32 device_port_width;
/**
* This field is the programmed connection rate for this remote device. It is
* used to program the TC with the maximum allowed connection rate.
*/
enum sas_linkrate connection_rate;
/**
* This field contains the allowed target protocols for this remote device.
*/
struct smp_discover_response_protocols target_protocols;
/**
* This field contains the device SAS address.
*/
struct sci_sas_address device_address;
/**
* This filed is assinged the value of true if the device is directly
* attached to the port.
*/
bool is_direct_attached;
#if !defined(DISABLE_ATAPI)
/**
* This filed is assinged the value of true if the device is an ATAPI
* device.
*/
bool is_atapi;
#endif
/**
* This filed contains a pointer back to the port to which this device
* is assigned.
*/
struct scic_sds_port *owning_port;
/**
* This field contains the SCU silicon remote node context specific
* information.
*/
struct scic_sds_remote_node_context rnc;
/**
* This field contains the stated request count for the remote device. The
* device can not reach the SCI_BASE_REMOTE_DEVICE_STATE_STOPPED until all
* requests are complete and the rnc_posted value is false.
*/
u32 started_request_count;
/**
* This field contains a pointer to the working request object. It is only
* used only for SATA requests since the unsolicited frames we get from the
* hardware have no Tag value to look up the io request object.
*/
struct scic_sds_request *working_request;
/**
* This field contains the reason for the remote device going not_ready. It is
* assigned in the state handlers and used in the state transition.
*/
u32 not_ready_reason;
/**
* This field is true if this remote device has an initialzied ready substate
* machine. SSP devices do not have a ready substate machine and STP devices
* have a ready substate machine.
*/
bool has_ready_substate_machine;
/**
* This field contains the state machine for the ready substate machine for
* this struct scic_sds_remote_device object.
*/
struct sci_base_state_machine ready_substate_machine;
/**
* This field maintains the set of state handlers for the remote device
* object. These are changed each time the remote device enters a new state.
*/
const struct scic_sds_remote_device_state_handler *state_handlers;
};
static inline struct scic_sds_remote_device *rnc_to_dev(struct scic_sds_remote_node_context *rnc)
{
struct scic_sds_remote_device *sci_dev;
sci_dev = container_of(rnc, typeof(*sci_dev), rnc);
return sci_dev;
}
typedef enum sci_status (*scic_sds_remote_device_request_handler_t)(
struct scic_sds_remote_device *device,
struct scic_sds_request *request);
typedef enum sci_status (*scic_sds_remote_device_high_priority_request_complete_handler_t)(
struct scic_sds_remote_device *device,
struct scic_sds_request *request,
void *,
enum sci_io_status);
typedef enum sci_status (*scic_sds_remote_device_handler_t)(
struct scic_sds_remote_device *sci_dev);
typedef enum sci_status (*scic_sds_remote_device_suspend_handler_t)(
struct scic_sds_remote_device *sci_dev,
u32 suspend_type);
typedef enum sci_status (*scic_sds_remote_device_resume_handler_t)(
struct scic_sds_remote_device *sci_dev);
typedef enum sci_status (*scic_sds_remote_device_frame_handler_t)(
struct scic_sds_remote_device *sci_dev,
u32 frame_index);
typedef enum sci_status (*scic_sds_remote_device_event_handler_t)(
struct scic_sds_remote_device *sci_dev,
u32 event_code);
typedef void (*scic_sds_remote_device_ready_not_ready_handler_t)(
struct scic_sds_remote_device *sci_dev);
/**
* struct scic_sds_remote_device_state_handler - This structure conains the
* state handlers that are needed to process requests for the SCU remote
* device objects.
*
*
*/
struct scic_sds_remote_device_state_handler {
/**
* The start_handler specifies the method invoked when a user
* attempts to start a remote device.
*/
scic_sds_remote_device_handler_t start_handler;
/**
* The stop_handler specifies the method invoked when a user attempts to
* stop a remote device.
*/
scic_sds_remote_device_handler_t stop_handler;
/**
* The fail_handler specifies the method invoked when a remote device
* failure has occurred. A failure may be due to an inability to
* initialize/configure the device.
*/
scic_sds_remote_device_handler_t fail_handler;
/**
* The destruct_handler specifies the method invoked when attempting to
* destruct a remote device.
*/
scic_sds_remote_device_handler_t destruct_handler;
/**
* The reset handler specifies the method invloked when requesting to
* reset a remote device.
*/
scic_sds_remote_device_handler_t reset_handler;
/**
* The reset complete handler specifies the method invloked when
* reporting that a reset has completed to the remote device.
*/
scic_sds_remote_device_handler_t reset_complete_handler;
/**
* The start_io_handler specifies the method invoked when a user
* attempts to start an IO request for a remote device.
*/
scic_sds_remote_device_request_handler_t start_io_handler;
/**
* The complete_io_handler specifies the method invoked when a user
* attempts to complete an IO request for a remote device.
*/
scic_sds_remote_device_request_handler_t complete_io_handler;
/**
* The continue_io_handler specifies the method invoked when a user
* attempts to continue an IO request for a remote device.
*/
scic_sds_remote_device_request_handler_t continue_io_handler;
/**
* The start_task_handler specifies the method invoked when a user
* attempts to start a task management request for a remote device.
*/
scic_sds_remote_device_request_handler_t start_task_handler;
/**
* The complete_task_handler specifies the method invoked when a user
* attempts to complete a task management request for a remote device.
*/
scic_sds_remote_device_request_handler_t complete_task_handler;
scic_sds_remote_device_suspend_handler_t suspend_handler;
scic_sds_remote_device_resume_handler_t resume_handler;
scic_sds_remote_device_event_handler_t event_handler;
scic_sds_remote_device_frame_handler_t frame_handler;
};
extern const struct sci_base_state scic_sds_ssp_remote_device_ready_substate_table[];
extern const struct sci_base_state scic_sds_stp_remote_device_ready_substate_table[];
extern const struct sci_base_state scic_sds_smp_remote_device_ready_substate_table[];
/**
* scic_sds_remote_device_increment_request_count() -
*
* This macro incrments the request count for this device
*/
#define scic_sds_remote_device_increment_request_count(sci_dev) \
((sci_dev)->started_request_count++)
/**
* scic_sds_remote_device_decrement_request_count() -
*
* This macro decrements the request count for this device. This count will
* never decrment past 0.
*/
#define scic_sds_remote_device_decrement_request_count(sci_dev) \
((sci_dev)->started_request_count > 0 ? \
(sci_dev)->started_request_count-- : 0)
/**
* scic_sds_remote_device_get_request_count() -
*
* This is a helper macro to return the current device request count.
*/
#define scic_sds_remote_device_get_request_count(sci_dev) \
((sci_dev)->started_request_count)
/**
* scic_sds_remote_device_get_port() -
*
* This macro returns the owning port of this remote device obejct.
*/
#define scic_sds_remote_device_get_port(sci_dev) \
((sci_dev)->owning_port)
/**
* scic_sds_remote_device_get_controller() -
*
* This macro returns the controller object that contains this device object
*/
#define scic_sds_remote_device_get_controller(sci_dev) \
scic_sds_port_get_controller(scic_sds_remote_device_get_port(sci_dev))
/**
* scic_sds_remote_device_set_state_handlers() -
*
* This macro sets the remote device state handlers pointer and is set on entry
* to each device state.
*/
#define scic_sds_remote_device_set_state_handlers(sci_dev, handlers) \
((sci_dev)->state_handlers = (handlers))
/**
* scic_sds_remote_device_get_port() -
*
* This macro returns the owning port of this device
*/
#define scic_sds_remote_device_get_port(sci_dev) \
((sci_dev)->owning_port)
/**
* scic_sds_remote_device_get_sequence() -
*
* This macro returns the remote device sequence value
*/
#define scic_sds_remote_device_get_sequence(sci_dev) \
(\
scic_sds_remote_device_get_controller(sci_dev)-> \
remote_device_sequence[(sci_dev)->rnc.remote_node_index] \
)
/**
* scic_sds_remote_device_get_controller_peg() -
*
* This macro returns the controllers protocol engine group
*/
#define scic_sds_remote_device_get_controller_peg(sci_dev) \
(\
scic_sds_controller_get_protocol_engine_group(\
scic_sds_port_get_controller(\
scic_sds_remote_device_get_port(sci_dev) \
) \
) \
)
/**
* scic_sds_remote_device_get_port_index() -
*
* This macro returns the port index for the devices owning port
*/
#define scic_sds_remote_device_get_port_index(sci_dev) \
(scic_sds_port_get_index(scic_sds_remote_device_get_port(sci_dev)))
/**
* scic_sds_remote_device_get_index() -
*
* This macro returns the remote node index for this device object
*/
#define scic_sds_remote_device_get_index(sci_dev) \
((sci_dev)->rnc.remote_node_index)
/**
* scic_sds_remote_device_build_command_context() -
*
* This macro builds a remote device context for the SCU post request operation
*/
#define scic_sds_remote_device_build_command_context(device, command) \
((command) \
| (scic_sds_remote_device_get_controller_peg((device)) << SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) \
| (scic_sds_remote_device_get_port_index((device)) << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT) \
| (scic_sds_remote_device_get_index((device))) \
)
/**
* scic_sds_remote_device_set_working_request() -
*
* This macro makes the working request assingment for the remote device
* object. To clear the working request use this macro with a NULL request
* object.
*/
#define scic_sds_remote_device_set_working_request(device, request) \
((device)->working_request = (request))
enum sci_status scic_sds_remote_device_frame_handler(
struct scic_sds_remote_device *sci_dev,
u32 frame_index);
enum sci_status scic_sds_remote_device_event_handler(
struct scic_sds_remote_device *sci_dev,
u32 event_code);
enum sci_status scic_sds_remote_device_start_io(
struct scic_sds_controller *controller,
struct scic_sds_remote_device *sci_dev,
struct scic_sds_request *io_request);
enum sci_status scic_sds_remote_device_complete_io(
struct scic_sds_controller *controller,
struct scic_sds_remote_device *sci_dev,
struct scic_sds_request *io_request);
enum sci_status scic_sds_remote_device_resume(
struct scic_sds_remote_device *sci_dev);
enum sci_status scic_sds_remote_device_suspend(
struct scic_sds_remote_device *sci_dev,
u32 suspend_type);
enum sci_status scic_sds_remote_device_start_task(
struct scic_sds_controller *controller,
struct scic_sds_remote_device *sci_dev,
struct scic_sds_request *io_request);
void scic_sds_remote_device_post_request(
struct scic_sds_remote_device *sci_dev,
u32 request);
#if !defined(DISABLE_ATAPI)
bool scic_sds_remote_device_is_atapi(
struct scic_sds_remote_device *sci_dev);
#else /* !defined(DISABLE_ATAPI) */
#define scic_sds_remote_device_is_atapi(sci_dev) false
#endif /* !defined(DISABLE_ATAPI) */
void scic_sds_remote_device_start_request(
struct scic_sds_remote_device *sci_dev,
struct scic_sds_request *sci_req,
enum sci_status status);
void scic_sds_remote_device_continue_request(void *sci_dev);
enum sci_status scic_sds_remote_device_default_start_handler(
struct scic_sds_remote_device *sci_dev);
enum sci_status scic_sds_remote_device_default_fail_handler(
struct scic_sds_remote_device *sci_dev);
enum sci_status scic_sds_remote_device_default_destruct_handler(
struct scic_sds_remote_device *sci_dev);
enum sci_status scic_sds_remote_device_default_reset_handler(
struct scic_sds_remote_device *device);
enum sci_status scic_sds_remote_device_default_reset_complete_handler(
struct scic_sds_remote_device *device);
enum sci_status scic_sds_remote_device_default_start_request_handler(
struct scic_sds_remote_device *device,
struct scic_sds_request *request);
enum sci_status scic_sds_remote_device_default_complete_request_handler(
struct scic_sds_remote_device *device,
struct scic_sds_request *request);
enum sci_status scic_sds_remote_device_default_continue_request_handler(
struct scic_sds_remote_device *device,
struct scic_sds_request *request);
enum sci_status scic_sds_remote_device_default_suspend_handler(
struct scic_sds_remote_device *sci_dev,
u32 suspend_type);
enum sci_status scic_sds_remote_device_default_resume_handler(
struct scic_sds_remote_device *sci_dev);
enum sci_status scic_sds_remote_device_default_frame_handler(
struct scic_sds_remote_device *sci_dev,
u32 frame_index);
enum sci_status scic_sds_remote_device_ready_state_stop_handler(
struct scic_sds_remote_device *device);
enum sci_status scic_sds_remote_device_ready_state_reset_handler(
struct scic_sds_remote_device *device);
enum sci_status scic_sds_remote_device_general_frame_handler(
struct scic_sds_remote_device *sci_dev,
u32 frame_index);
enum sci_status scic_sds_remote_device_general_event_handler(
struct scic_sds_remote_device *sci_dev,
u32 event_code);
enum sci_status scic_sds_ssp_remote_device_ready_suspended_substate_resume_handler(
struct scic_sds_remote_device *sci_dev);
#endif /* _SCIC_SDS_REMOTE_DEVICE_H_ */

3
drivers/scsi/isci/core/scic_sds_request.c
View File

@ -59,11 +59,10 @@
#include "intel_sat.h"
#include "scic_controller.h"
#include "scic_io_request.h"
#include "scic_remote_device.h"
#include "scic_sds_controller.h"
#include "scu_registers.h"
#include "scic_sds_port.h"
#include "scic_sds_remote_device.h"
#include "remote_device.h"
#include "scic_sds_request.h"
#include "scic_sds_smp_request.h"
#include "scic_sds_stp_request.h"

3
drivers/scsi/isci/core/scic_sds_smp_request.c
View File

@ -56,9 +56,8 @@
#include "intel_sas.h"
#include "sci_base_state_machine.h"
#include "scic_controller.h"
#include "scic_remote_device.h"
#include "scic_sds_controller.h"
#include "scic_sds_remote_device.h"
#include "remote_device.h"
#include "scic_sds_request.h"
#include "scic_sds_smp_request.h"
#include "sci_environment.h"

3
drivers/scsi/isci/core/scic_sds_stp_packet_request.c
View File

@ -61,9 +61,8 @@
#include "sati_translator_sequence.h"
#include "sci_base_state.h"
#include "scic_controller.h"
#include "scic_remote_device.h"
#include "scic_sds_controller.h"
#include "scic_sds_remote_device.h"
#include "remote_device.h"
#include "scic_sds_request.h"
#include "scic_sds_stp_packet_request.h"
#include "scic_user_callback.h"

3
drivers/scsi/isci/core/scic_sds_stp_request.c
View File

@ -60,9 +60,8 @@
#include "sci_base_state.h"
#include "sci_base_state_machine.h"
#include "scic_io_request.h"
#include "scic_remote_device.h"
#include "scic_sds_controller.h"
#include "scic_sds_remote_device.h"
#include "remote_device.h"
#include "scic_sds_request.h"
#include "scic_sds_stp_pio_request.h"
#include "scic_sds_stp_request.h"

4
drivers/scsi/isci/host.c
View File

@ -55,14 +55,12 @@
#include "isci.h"
#include "scic_io_request.h"
#include "scic_remote_device.h"
#include "scic_port.h"
#include "port.h"
#include "request.h"
#include "host.h"
#include "probe_roms.h"
#include "core/scic_sds_controller.h"
#include "scic_sds_controller.h"
irqreturn_t isci_msix_isr(int vec, void *data)
{

1
drivers/scsi/isci/host.h
View File

@ -61,7 +61,6 @@
/*#include "task.h"*/
#include "timers.h"
#include "remote_device.h"
#include "scic_remote_device.h"
#define DRV_NAME "isci"
#define SCI_PCI_BAR_COUNT 2

1
drivers/scsi/isci/init.c
View File

@ -62,7 +62,6 @@
#include "isci.h"
#include "task.h"
#include "sci_controller_constants.h"
#include "scic_remote_device.h"
#include "sci_environment.h"
#include "probe_roms.h"

1
drivers/scsi/isci/port.c
View File

@ -63,7 +63,6 @@
#include <linux/workqueue.h>
#include "isci.h"
#include "scic_io_request.h"
#include "scic_remote_device.h"
#include "scic_phy.h"
#include "scic_sds_phy.h"
#include "scic_port.h"

1
drivers/scsi/isci/port.h
View File

@ -64,6 +64,7 @@
struct isci_phy;
struct isci_host;
struct scic_sds_phy;
enum isci_status {

1
drivers/scsi/isci/probe_roms.c
View File

@ -33,7 +33,6 @@
#include "isci.h"
#include "task.h"
#include "sci_controller_constants.h"
#include "scic_remote_device.h"
#include "sci_environment.h"
#include "probe_roms.h"

1636
drivers/scsi/isci/remote_device.c
View File

File diff suppressed because it is too large Load Diff

742
drivers/scsi/isci/remote_device.h
View File

@ -53,11 +53,127 @@
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#if !defined(_ISCI_REMOTE_DEVICE_H_)
#ifndef _ISCI_REMOTE_DEVICE_H_
#define _ISCI_REMOTE_DEVICE_H_
#include "scic_sds_remote_device.h"
#include <scsi/libsas.h>
#include "sci_status.h"
#include "intel_sas.h"
#include "scu_remote_node_context.h"
#include "remote_node_context.h"
#include "port.h"
struct isci_host;
enum scic_remote_device_not_ready_reason_code {
SCIC_REMOTE_DEVICE_NOT_READY_START_REQUESTED,
SCIC_REMOTE_DEVICE_NOT_READY_STOP_REQUESTED,
SCIC_REMOTE_DEVICE_NOT_READY_SATA_REQUEST_STARTED,
SCIC_REMOTE_DEVICE_NOT_READY_SATA_SDB_ERROR_FIS_RECEIVED,
SCIC_REMOTE_DEVICE_NOT_READY_SMP_REQUEST_STARTED,
SCIC_REMOTE_DEVICE_NOT_READY_REASON_CODE_MAX
};
struct scic_sds_remote_device {
/**
* The field specifies that the parent object for the base remote
* device is the base object itself.
*/
struct sci_base_object parent;
/**
* This field contains the information for the base remote device state
* machine.
*/
struct sci_base_state_machine state_machine;
/**
* This field is the programmed device port width. This value is
* written to the RCN data structure to tell the SCU how many open
* connections this device can have.
*/
u32 device_port_width;
/**
* This field is the programmed connection rate for this remote device. It is
* used to program the TC with the maximum allowed connection rate.
*/
enum sas_linkrate connection_rate;
/**
* This field contains the allowed target protocols for this remote device.
*/
struct smp_discover_response_protocols target_protocols;
/**
* This field contains the device SAS address.
*/
struct sci_sas_address device_address;
/**
* This filed is assinged the value of true if the device is directly
* attached to the port.
*/
bool is_direct_attached;
#if !defined(DISABLE_ATAPI)
/**
* This filed is assinged the value of true if the device is an ATAPI
* device.
*/
bool is_atapi;
#endif
/**
* This filed contains a pointer back to the port to which this device
* is assigned.
*/
struct scic_sds_port *owning_port;
/**
* This field contains the SCU silicon remote node context specific
* information.
*/
struct scic_sds_remote_node_context rnc;
/**
* This field contains the stated request count for the remote device. The
* device can not reach the SCI_BASE_REMOTE_DEVICE_STATE_STOPPED until all
* requests are complete and the rnc_posted value is false.
*/
u32 started_request_count;
/**
* This field contains a pointer to the working request object. It is only
* used only for SATA requests since the unsolicited frames we get from the
* hardware have no Tag value to look up the io request object.
*/
struct scic_sds_request *working_request;
/**
* This field contains the reason for the remote device going not_ready. It is
* assigned in the state handlers and used in the state transition.
*/
u32 not_ready_reason;
/**
* This field is true if this remote device has an initialzied ready substate
* machine. SSP devices do not have a ready substate machine and STP devices
* have a ready substate machine.
*/
bool has_ready_substate_machine;
/**
* This field contains the state machine for the ready substate machine for
* this struct scic_sds_remote_device object.
*/
struct sci_base_state_machine ready_substate_machine;
/**
* This field maintains the set of state handlers for the remote device
* object. These are changed each time the remote device enters a new state.
*/
const struct scic_sds_remote_device_state_handler *state_handlers;
};
struct isci_remote_device {
enum isci_status status;
@ -75,12 +191,6 @@ struct isci_remote_device {
#define ISCI_REMOTE_DEVICE_START_TIMEOUT 5000
void isci_remote_device_start_complete(struct isci_host *ihost,
struct isci_remote_device *idev,
enum sci_status);
void isci_remote_device_stop_complete(struct isci_host *ihost,
struct isci_remote_device *idev,
enum sci_status);
enum sci_status isci_remote_device_stop(struct isci_host *ihost,
struct isci_remote_device *idev);
void isci_remote_device_nuke_requests(struct isci_host *ihost,
@ -97,5 +207,619 @@ void isci_device_clear_reset_pending(struct isci_host *ihost,
struct isci_remote_device *idev);
void isci_remote_device_change_state(struct isci_remote_device *idev,
enum isci_status status);
/**
* scic_remote_device_stop() - This method will stop both transmission and
* reception of link activity for the supplied remote device. This method
* disables normal IO requests from flowing through to the remote device.
* @remote_device: This parameter specifies the device to be stopped.
* @timeout: This parameter specifies the number of milliseconds in which the
* stop operation should complete.
*
* An indication of whether the device was successfully stopped. SCI_SUCCESS
* This value is returned if the transmission and reception for the device was
* successfully stopped.
*/
enum sci_status scic_remote_device_stop(
struct scic_sds_remote_device *remote_device,
u32 timeout);
/**
* scic_remote_device_reset() - This method will reset the device making it
* ready for operation. This method must be called anytime the device is
* reset either through a SMP phy control or a port hard reset request.
* @remote_device: This parameter specifies the device to be reset.
*
* This method does not actually cause the device hardware to be reset. This
* method resets the software object so that it will be operational after a
* device hardware reset completes. An indication of whether the device reset
* was accepted. SCI_SUCCESS This value is returned if the device reset is
* started.
*/
enum sci_status scic_remote_device_reset(
struct scic_sds_remote_device *remote_device);
/**
* scic_remote_device_reset_complete() - This method informs the device object
* that the reset operation is complete and the device can resume operation
* again.
* @remote_device: This parameter specifies the device which is to be informed
* of the reset complete operation.
*
* An indication that the device is resuming operation. SCI_SUCCESS the device
* is resuming operation.
*/
enum sci_status scic_remote_device_reset_complete(
struct scic_sds_remote_device *remote_device);
/**
* scic_remote_device_get_connection_rate() - This method simply returns the
* link rate at which communications to the remote device occur.
* @remote_device: This parameter specifies the device for which to get the
* connection rate.
*
* Return the link rate at which we transfer for the supplied remote device.
*/
enum sas_linkrate scic_remote_device_get_connection_rate(
struct scic_sds_remote_device *remote_device);
/**
* scic_remote_device_get_protocols() - This method will indicate which
* protocols are supported by this remote device.
* @remote_device: This parameter specifies the device for which to return the
* protocol.
* @protocols: This parameter specifies the output values, from the remote
* device object, which indicate the protocols supported by the supplied
* remote_device.
*
* The type of protocols supported by this device. The values are returned as
* part of a bit mask in order to allow for multi-protocol support.
*/
void scic_remote_device_get_protocols(
struct scic_sds_remote_device *remote_device,
struct smp_discover_response_protocols *protocols);
#if !defined(DISABLE_ATAPI)
/**
* scic_remote_device_is_atapi() -
* @this_device: The device whose type is to be decided.
*
* This method first decide whether a device is a stp target, then decode the
* signature fis of a DA STP device to tell whether it is a standard end disk
* or an ATAPI device. bool Indicate a device is ATAPI device or not.
*/
bool scic_remote_device_is_atapi(
struct scic_sds_remote_device *device_handle);
#else /* !defined(DISABLE_ATAPI) */
#define scic_remote_device_is_atapi(device_handle) false
#endif /* !defined(DISABLE_ATAPI) */
/**
* enum scic_sds_remote_device_states - This enumeration depicts all the states
* for the common remote device state machine.
*
*
*/
enum scic_sds_remote_device_states {
/**
* Simply the initial state for the base remote device state machine.
*/
SCI_BASE_REMOTE_DEVICE_STATE_INITIAL,
/**
* This state indicates that the remote device has successfully been
* stopped. In this state no new IO operations are permitted.
* This state is entered from the INITIAL state.
* This state is entered from the STOPPING state.
*/
SCI_BASE_REMOTE_DEVICE_STATE_STOPPED,
/**
* This state indicates the the remote device is in the process of
* becoming ready (i.e. starting). In this state no new IO operations
* are permitted.
* This state is entered from the STOPPED state.
*/
SCI_BASE_REMOTE_DEVICE_STATE_STARTING,
/**
* This state indicates the remote device is now ready. Thus, the user
* is able to perform IO operations on the remote device.
* This state is entered from the STARTING state.
*/
SCI_BASE_REMOTE_DEVICE_STATE_READY,
/**
* This state indicates that the remote device 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.
* This state is entered from the FAILED state.
*/
SCI_BASE_REMOTE_DEVICE_STATE_STOPPING,
/**
* This state indicates that the remote device has failed.
* In this state no new IO operations are permitted.
* This state is entered from the INITIALIZING state.
* This state is entered from the READY state.
*/
SCI_BASE_REMOTE_DEVICE_STATE_FAILED,
/**
* This state indicates the device is being reset.
* In this state no new IO operations are permitted.
* This state is entered from the READY state.
*/
SCI_BASE_REMOTE_DEVICE_STATE_RESETTING,
/**
* Simply the final state for the base remote device state machine.
*/
SCI_BASE_REMOTE_DEVICE_STATE_FINAL,
};
/**
* enum scic_sds_ssp_remote_device_ready_substates -
*
* This is the enumeration of the ready substates for the
* struct scic_sds_remote_device.
*/
enum scic_sds_ssp_remote_device_ready_substates {
/**
* This is the initial state for the remote device ready substate.
*/
SCIC_SDS_SSP_REMOTE_DEVICE_READY_SUBSTATE_INITIAL,
/**
* This is the ready operational substate for the remote device.
* This is the normal operational state for a remote device.
*/
SCIC_SDS_SSP_REMOTE_DEVICE_READY_SUBSTATE_OPERATIONAL,
/**
* This is the suspended state for the remote device. This is the state
* that the device is placed in when a RNC suspend is received by
* the SCU hardware.
*/
SCIC_SDS_SSP_REMOTE_DEVICE_READY_SUBSTATE_SUSPENDED,
/**
* This is the final state that the device is placed in before a change
* to the base state machine.
*/
SCIC_SDS_SSP_REMOTE_DEVICE_READY_SUBSTATE_FINAL,
SCIC_SDS_SSP_REMOTE_DEVICE_READY_MAX_SUBSTATES
};
/**
* enum scic_sds_stp_remote_device_ready_substates -
*
* This is the enumeration for the struct scic_sds_remote_device ready substates
* for the STP remote device.
*/
enum scic_sds_stp_remote_device_ready_substates {
/**
* This is the idle substate for the stp remote device. When there are no
* active IO for the device it is is in this state.
*/
SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE,
/**
* This is the command state for for the STP remote device. This state is
* entered when the device is processing a non-NCQ command. The device object
* will fail any new start IO requests until this command is complete.
*/
SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD,
/**
* This is the NCQ state for the STP remote device. This state is entered
* when the device is processing an NCQ reuqest. It will remain in this state
* so long as there is one or more NCQ requests being processed.
*/
SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ,
/**
* This is the NCQ error state for the STP remote device. This state is
* entered when an SDB error FIS is received by the device object while in the
* NCQ state. The device object will only accept a READ LOG command while in
* this state.
*/
SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR,
#if !defined(DISABLE_ATAPI)
/**
* This is the ATAPI error state for the STP ATAPI remote device. This state is
* entered when ATAPI device sends error status FIS without data while the device
* object is in CMD state. A suspension event is expected in this state. The device
* object will resume right away.
*/
SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_ATAPI_ERROR,
#endif
/**
* This is the READY substate indicates the device is waiting for the RESET task
* coming to be recovered from certain hardware specific error.
*/
SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET,
};
/**
* enum scic_sds_smp_remote_device_ready_substates -
*
* This is the enumeration of the ready substates for the SMP REMOTE DEVICE.
*/
enum scic_sds_smp_remote_device_ready_substates {
/**
* This is the ready operational substate for the remote device. This is the
* normal operational state for a remote device.
*/
SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE,
/**
* This is the suspended state for the remote device. This is the state that
* the device is placed in when a RNC suspend is received by the SCU hardware.
*/
SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD,
};
static inline struct scic_sds_remote_device *rnc_to_dev(struct scic_sds_remote_node_context *rnc)
{
struct scic_sds_remote_device *sci_dev;
sci_dev = container_of(rnc, typeof(*sci_dev), rnc);
return sci_dev;
}
typedef enum sci_status (*scic_sds_remote_device_request_handler_t)(
struct scic_sds_remote_device *device,
struct scic_sds_request *request);
typedef enum sci_status (*scic_sds_remote_device_high_priority_request_complete_handler_t)(
struct scic_sds_remote_device *device,
struct scic_sds_request *request,
void *,
enum sci_io_status);
typedef enum sci_status (*scic_sds_remote_device_handler_t)(
struct scic_sds_remote_device *sci_dev);
typedef enum sci_status (*scic_sds_remote_device_suspend_handler_t)(
struct scic_sds_remote_device *sci_dev,
u32 suspend_type);
typedef enum sci_status (*scic_sds_remote_device_resume_handler_t)(
struct scic_sds_remote_device *sci_dev);
typedef enum sci_status (*scic_sds_remote_device_frame_handler_t)(
struct scic_sds_remote_device *sci_dev,
u32 frame_index);
typedef enum sci_status (*scic_sds_remote_device_event_handler_t)(
struct scic_sds_remote_device *sci_dev,
u32 event_code);
typedef void (*scic_sds_remote_device_ready_not_ready_handler_t)(
struct scic_sds_remote_device *sci_dev);
/**
* struct scic_sds_remote_device_state_handler - This structure conains the
* state handlers that are needed to process requests for the SCU remote
* device objects.
*
*
*/
struct scic_sds_remote_device_state_handler {
/**
* The start_handler specifies the method invoked when a user
* attempts to start a remote device.
*/
scic_sds_remote_device_handler_t start_handler;
/**
* The stop_handler specifies the method invoked when a user attempts to
* stop a remote device.
*/
scic_sds_remote_device_handler_t stop_handler;
/**
* The fail_handler specifies the method invoked when a remote device
* failure has occurred. A failure may be due to an inability to
* initialize/configure the device.
*/
scic_sds_remote_device_handler_t fail_handler;
/**
* The destruct_handler specifies the method invoked when attempting to
* destruct a remote device.
*/
scic_sds_remote_device_handler_t destruct_handler;
/**
* The reset handler specifies the method invloked when requesting to
* reset a remote device.
*/
scic_sds_remote_device_handler_t reset_handler;
/**
* The reset complete handler specifies the method invloked when
* reporting that a reset has completed to the remote device.
*/
scic_sds_remote_device_handler_t reset_complete_handler;
/**
* The start_io_handler specifies the method invoked when a user
* attempts to start an IO request for a remote device.
*/
scic_sds_remote_device_request_handler_t start_io_handler;
/**
* The complete_io_handler specifies the method invoked when a user
* attempts to complete an IO request for a remote device.
*/
scic_sds_remote_device_request_handler_t complete_io_handler;
/**
* The continue_io_handler specifies the method invoked when a user
* attempts to continue an IO request for a remote device.
*/
scic_sds_remote_device_request_handler_t continue_io_handler;
/**
* The start_task_handler specifies the method invoked when a user
* attempts to start a task management request for a remote device.
*/
scic_sds_remote_device_request_handler_t start_task_handler;
/**
* The complete_task_handler specifies the method invoked when a user
* attempts to complete a task management request for a remote device.
*/
scic_sds_remote_device_request_handler_t complete_task_handler;
scic_sds_remote_device_suspend_handler_t suspend_handler;
scic_sds_remote_device_resume_handler_t resume_handler;
scic_sds_remote_device_event_handler_t event_handler;
scic_sds_remote_device_frame_handler_t frame_handler;
};
extern const struct sci_base_state scic_sds_ssp_remote_device_ready_substate_table[];
extern const struct sci_base_state scic_sds_stp_remote_device_ready_substate_table[];
extern const struct sci_base_state scic_sds_smp_remote_device_ready_substate_table[];
/**
* scic_sds_remote_device_increment_request_count() -
*
* This macro incrments the request count for this device
*/
#define scic_sds_remote_device_increment_request_count(sci_dev) \
((sci_dev)->started_request_count++)
/**
* scic_sds_remote_device_decrement_request_count() -
*
* This macro decrements the request count for this device. This count will
* never decrment past 0.
*/
#define scic_sds_remote_device_decrement_request_count(sci_dev) \
((sci_dev)->started_request_count > 0 ? \
(sci_dev)->started_request_count-- : 0)
/**
* scic_sds_remote_device_get_request_count() -
*
* This is a helper macro to return the current device request count.
*/
#define scic_sds_remote_device_get_request_count(sci_dev) \
((sci_dev)->started_request_count)
/**
* scic_sds_remote_device_get_port() -
*
* This macro returns the owning port of this remote device obejct.
*/
#define scic_sds_remote_device_get_port(sci_dev) \
((sci_dev)->owning_port)
/**
* scic_sds_remote_device_get_controller() -
*
* This macro returns the controller object that contains this device object
*/
#define scic_sds_remote_device_get_controller(sci_dev) \
scic_sds_port_get_controller(scic_sds_remote_device_get_port(sci_dev))
/**
* scic_sds_remote_device_set_state_handlers() -
*
* This macro sets the remote device state handlers pointer and is set on entry
* to each device state.
*/
#define scic_sds_remote_device_set_state_handlers(sci_dev, handlers) \
((sci_dev)->state_handlers = (handlers))
/**
* scic_sds_remote_device_get_port() -
*
* This macro returns the owning port of this device
*/
#define scic_sds_remote_device_get_port(sci_dev) \
((sci_dev)->owning_port)
/**
* scic_sds_remote_device_get_sequence() -
*
* This macro returns the remote device sequence value
*/
#define scic_sds_remote_device_get_sequence(sci_dev) \
(\
scic_sds_remote_device_get_controller(sci_dev)-> \
remote_device_sequence[(sci_dev)->rnc.remote_node_index] \
)
/**
* scic_sds_remote_device_get_controller_peg() -
*
* This macro returns the controllers protocol engine group
*/
#define scic_sds_remote_device_get_controller_peg(sci_dev) \
(\
scic_sds_controller_get_protocol_engine_group(\
scic_sds_port_get_controller(\
scic_sds_remote_device_get_port(sci_dev) \
) \
) \
)
/**
* scic_sds_remote_device_get_port_index() -
*
* This macro returns the port index for the devices owning port
*/
#define scic_sds_remote_device_get_port_index(sci_dev) \
(scic_sds_port_get_index(scic_sds_remote_device_get_port(sci_dev)))
/**
* scic_sds_remote_device_get_index() -
*
* This macro returns the remote node index for this device object
*/
#define scic_sds_remote_device_get_index(sci_dev) \
((sci_dev)->rnc.remote_node_index)
/**
* scic_sds_remote_device_build_command_context() -
*
* This macro builds a remote device context for the SCU post request operation
*/
#define scic_sds_remote_device_build_command_context(device, command) \
((command) \
| (scic_sds_remote_device_get_controller_peg((device)) << SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) \
| (scic_sds_remote_device_get_port_index((device)) << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT) \
| (scic_sds_remote_device_get_index((device))) \
)
/**
* scic_sds_remote_device_set_working_request() -
*
* This macro makes the working request assingment for the remote device
* object. To clear the working request use this macro with a NULL request
* object.
*/
#define scic_sds_remote_device_set_working_request(device, request) \
((device)->working_request = (request))
enum sci_status scic_sds_remote_device_frame_handler(
struct scic_sds_remote_device *sci_dev,
u32 frame_index);
enum sci_status scic_sds_remote_device_event_handler(
struct scic_sds_remote_device *sci_dev,
u32 event_code);
enum sci_status scic_sds_remote_device_start_io(
struct scic_sds_controller *controller,
struct scic_sds_remote_device *sci_dev,
struct scic_sds_request *io_request);
enum sci_status scic_sds_remote_device_complete_io(
struct scic_sds_controller *controller,
struct scic_sds_remote_device *sci_dev,
struct scic_sds_request *io_request);
enum sci_status scic_sds_remote_device_resume(
struct scic_sds_remote_device *sci_dev);
enum sci_status scic_sds_remote_device_suspend(
struct scic_sds_remote_device *sci_dev,
u32 suspend_type);
enum sci_status scic_sds_remote_device_start_task(
struct scic_sds_controller *controller,
struct scic_sds_remote_device *sci_dev,
struct scic_sds_request *io_request);
void scic_sds_remote_device_post_request(
struct scic_sds_remote_device *sci_dev,
u32 request);
#if !defined(DISABLE_ATAPI)
bool scic_sds_remote_device_is_atapi(
struct scic_sds_remote_device *sci_dev);
#else /* !defined(DISABLE_ATAPI) */
#define scic_sds_remote_device_is_atapi(sci_dev) false
#endif /* !defined(DISABLE_ATAPI) */
void scic_sds_remote_device_start_request(
struct scic_sds_remote_device *sci_dev,
struct scic_sds_request *sci_req,
enum sci_status status);
void scic_sds_remote_device_continue_request(void *sci_dev);
enum sci_status scic_sds_remote_device_default_start_handler(
struct scic_sds_remote_device *sci_dev);
enum sci_status scic_sds_remote_device_default_fail_handler(
struct scic_sds_remote_device *sci_dev);
enum sci_status scic_sds_remote_device_default_destruct_handler(
struct scic_sds_remote_device *sci_dev);
enum sci_status scic_sds_remote_device_default_reset_handler(
struct scic_sds_remote_device *device);
enum sci_status scic_sds_remote_device_default_reset_complete_handler(
struct scic_sds_remote_device *device);
enum sci_status scic_sds_remote_device_default_start_request_handler(
struct scic_sds_remote_device *device,
struct scic_sds_request *request);
enum sci_status scic_sds_remote_device_default_complete_request_handler(
struct scic_sds_remote_device *device,
struct scic_sds_request *request);
enum sci_status scic_sds_remote_device_default_continue_request_handler(
struct scic_sds_remote_device *device,
struct scic_sds_request *request);
enum sci_status scic_sds_remote_device_default_suspend_handler(
struct scic_sds_remote_device *sci_dev,
u32 suspend_type);
enum sci_status scic_sds_remote_device_default_resume_handler(
struct scic_sds_remote_device *sci_dev);
enum sci_status scic_sds_remote_device_default_frame_handler(
struct scic_sds_remote_device *sci_dev,
u32 frame_index);
enum sci_status scic_sds_remote_device_ready_state_stop_handler(
struct scic_sds_remote_device *device);
enum sci_status scic_sds_remote_device_ready_state_reset_handler(
struct scic_sds_remote_device *device);
enum sci_status scic_sds_remote_device_general_frame_handler(
struct scic_sds_remote_device *sci_dev,
u32 frame_index);
enum sci_status scic_sds_remote_device_general_event_handler(
struct scic_sds_remote_device *sci_dev,
u32 event_code);
enum sci_status scic_sds_ssp_remote_device_ready_suspended_substate_resume_handler(
struct scic_sds_remote_device *sci_dev);
#endif /* !defined(_ISCI_REMOTE_DEVICE_H_) */

5
drivers/scsi/isci/core/scic_sds_remote_node_context.c → drivers/scsi/isci/remote_node_context.c
View File

@ -54,11 +54,10 @@
*/
#include "sci_base_state_machine.h"
#include "scic_remote_device.h"
#include "scic_sds_controller.h"
#include "scic_sds_port.h"
#include "scic_sds_remote_device.h"
#include "scic_sds_remote_node_context.h"
#include "remote_device.h"
#include "remote_node_context.h"
#include "sci_environment.h"
#include "sci_util.h"
#include "scu_event_codes.h"

0
drivers/scsi/isci/core/scic_sds_remote_node_context.h → drivers/scsi/isci/remote_node_context.h
View File

4
drivers/scsi/isci/core/scic_sds_remote_node_table.c → drivers/scsi/isci/remote_node_table.c
View File

@ -61,8 +61,8 @@
*/
#include "sci_util.h"
#include "sci_environment.h"
#include "scic_sds_remote_node_table.h"
#include "scic_sds_remote_node_context.h"
#include "remote_node_table.h"
#include "remote_node_context.h"
/**
*

0
drivers/scsi/isci/core/scic_sds_remote_node_table.h → drivers/scsi/isci/remote_node_table.h
View File

1
drivers/scsi/isci/request.c
View File

@ -54,7 +54,6 @@
*/
#include "isci.h"
#include "scic_remote_device.h"
#include "scic_io_request.h"
#include "scic_task_request.h"
#include "scic_port.h"

3
drivers/scsi/isci/sata.c
View File

@ -54,8 +54,7 @@
*/
#include "isci.h"
#include "scic_remote_device.h"
#include "scic_sds_remote_device.h"
#include "remote_device.h"
#include "scic_io_request.h"
#include "scic_task_request.h"
#include "task.h"

0
drivers/scsi/isci/core/scu_remote_node_context.h → drivers/scsi/isci/scu_remote_node_context.h
View File

3
drivers/scsi/isci/core/scic_sds_smp_remote_device.c → drivers/scsi/isci/smp_remote_device.c
View File

@ -53,10 +53,9 @@
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "scic_remote_device.h"
#include "scic_sds_controller.h"
#include "scic_sds_port.h"
#include "scic_sds_remote_device.h"
#include "remote_device.h"
#include "scic_sds_request.h"
#include "sci_environment.h"
#include "sci_util.h"

3
drivers/scsi/isci/core/scic_sds_stp_remote_device.c → drivers/scsi/isci/stp_remote_device.c
View File

@ -57,10 +57,9 @@
#include "intel_sata.h"
#include "intel_sat.h"
#include "sci_base_state.h"
#include "scic_remote_device.h"
#include "scic_sds_controller.h"
#include "scic_sds_port.h"
#include "scic_sds_remote_device.h"
#include "remote_device.h"
#include "scic_sds_request.h"
#include "sci_environment.h"
#include "sci_util.h"

5
drivers/scsi/isci/task.c
View File

@ -56,10 +56,9 @@
#include <linux/completion.h>
#include <linux/irqflags.h>
#include "scic_task_request.h"
#include "scic_remote_device.h"
#include "scic_io_request.h"
#include "scic_sds_remote_device.h"
#include "scic_sds_remote_node_context.h"
#include "remote_device.h"
#include "remote_node_context.h"
#include "isci.h"
#include "request.h"
#include "sata.h"