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freebsd-skq/sys/dev/isci/scil/scif_sas_task_request.c
Jim Harris f11c7f6305 Add isci(4) driver for amd64 and i386 targets. 
The isci driver is for the integrated SAS controller in the Intel C600
(Patsburg) chipset.  Source files in sys/dev/isci directory are
FreeBSD-specific, and sys/dev/isci/scil subdirectory contains
an OS-agnostic library (SCIL) published by Intel to control the SAS
controller.  This library is used primarily as-is in this driver, with
some post-processing to better integrate into the kernel build
environment.

isci.4 and a README in the sys/dev/isci directory contain a few
additional details.

This driver is only built for amd64 and i386 targets.

Sponsored by: Intel
Reviewed by: scottl
Approved by: scottl
2012-01-31 19:38:18 +00:00

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/*-
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* BSD LICENSE
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/**
* @file
*
* @brief This file contains the task management request object
* (SCIF_SAS_TASK_REQUEST) method implementations.
*/
#include <dev/isci/scil/intel_sas.h>
#include <dev/isci/scil/scic_task_request.h>
#include <dev/isci/scil/scic_remote_device.h>
#include <dev/isci/scil/scic_user_callback.h>
#include <dev/isci/scil/scic_controller.h>
#include <dev/isci/scil/scif_user_callback.h>
#include <dev/isci/scil/scif_sas_request.h>
#include <dev/isci/scil/scif_sas_task_request.h>
#include <dev/isci/scil/scif_sas_stp_task_request.h>
#include <dev/isci/scil/scif_sas_logger.h>
#include <dev/isci/scil/scif_sas_controller.h>
#include <dev/isci/scil/scif_sas_domain.h>
#include <dev/isci/scil/scif_sas_remote_device.h>
#include <dev/isci/scil/scif_sas_smp_io_request.h>
//******************************************************************************
//* P U B L I C M E T H O D S
//******************************************************************************
U32 scif_task_request_get_object_size(
void
)
{
return (sizeof(SCIF_SAS_TASK_REQUEST_T) + scic_task_request_get_object_size());
}
// ---------------------------------------------------------------------------
U8 scif_sas_task_request_get_function(
SCIF_SAS_TASK_REQUEST_T *fw_task
)
{
return fw_task->function;
}
// ---------------------------------------------------------------------------
static
SCI_STATUS scif_sas_task_request_generic_construct(
SCI_CONTROLLER_HANDLE_T scif_controller,
SCI_REMOTE_DEVICE_HANDLE_T scif_remote_device,
U16 io_tag,
void * user_task_request_object,
void * task_request_memory,
SCI_TASK_REQUEST_HANDLE_T * scif_task_request,
U8 task_function
)
{
SCI_STATUS status;
SCIF_SAS_CONTROLLER_T * fw_controller = (SCIF_SAS_CONTROLLER_T*)
scif_controller;
SCIF_SAS_TASK_REQUEST_T * fw_task = (SCIF_SAS_TASK_REQUEST_T*)
task_request_memory;
SCIF_SAS_REMOTE_DEVICE_T * fw_device = (SCIF_SAS_REMOTE_DEVICE_T*)
scif_remote_device;
U8 * core_request_memory;
SCIF_LOG_TRACE((
sci_base_object_get_logger(fw_controller),
SCIF_LOG_OBJECT_TASK_MANAGEMENT,
"scif_task_request_construct(0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x) enter\n",
scif_controller, scif_remote_device, io_tag, user_task_request_object,
task_request_memory, scif_task_request
));
// Initialize the user's handle to the framework task request.
*scif_task_request = fw_task;
// initialize affected request count
fw_task->affected_request_count = 0;
fw_task->io_tag_to_manage = SCI_CONTROLLER_INVALID_IO_TAG;
fw_task->function = task_function;
if (task_function == SCI_SAS_HARD_RESET )
{
if (fw_device->containing_device != NULL )
{// Target Reset is for an expander attached device,
// go down to construct smp Phy Control request.
scif_sas_smp_request_construct_phy_control(
fw_controller,
fw_device->containing_device,
PHY_OPERATION_HARD_RESET,
fw_device->expander_phy_identifier,
user_task_request_object,
task_request_memory
);
}
else
{
scif_sas_request_construct(
&fw_task->parent,
fw_device,
sci_base_object_get_logger(fw_controller),
scif_sas_task_request_state_table
);
// If target reset is for a DA device, don't build task at all.
// Just set object association.
sci_object_set_association(fw_task, user_task_request_object);
}
return SCI_SUCCESS;
}
// Construct the parent object first in order to ensure logging can
// function.
scif_sas_request_construct(
&fw_task->parent,
fw_device,
sci_base_object_get_logger(fw_controller),
scif_sas_task_request_state_table
);
core_request_memory = (U8 *)task_request_memory + sizeof(SCIF_SAS_TASK_REQUEST_T);
status = scic_task_request_construct(
fw_controller->core_object,
fw_device->core_object,
io_tag,
fw_task,
core_request_memory,
&fw_task->parent.core_object
);
if (status == SCI_SUCCESS)
{
SMP_DISCOVER_RESPONSE_PROTOCOLS_T dev_protocols;
// These associations must be set early for the core io request
// object construction to complete correctly as there will be
// callbacks into the user driver framework during core construction
sci_object_set_association(fw_task, user_task_request_object);
sci_object_set_association(fw_task->parent.core_object, fw_task);
// Perform protocol specific core IO request construction.
scic_remote_device_get_protocols(fw_device->core_object, &dev_protocols);
if (dev_protocols.u.bits.attached_ssp_target)
status = scic_task_request_construct_ssp(fw_task->parent.core_object);
else if (dev_protocols.u.bits.attached_stp_target)
status = scif_sas_stp_task_request_construct(fw_task);
else
status = SCI_FAILURE_UNSUPPORTED_PROTOCOL;
if (status == SCI_SUCCESS)
{
sci_base_state_machine_logger_initialize(
&fw_task->parent.parent.state_machine_logger,
&fw_task->parent.parent.state_machine,
&fw_task->parent.parent.parent,
scif_cb_logger_log_states,
"SCIF_SAS_TASK_REQUEST_T", "base_state_machine",
SCIF_LOG_OBJECT_TASK_MANAGEMENT
);
}
else
{
SCIF_LOG_WARNING((
sci_base_object_get_logger(fw_task),
SCIF_LOG_OBJECT_TASK_MANAGEMENT,
"Device:0x%x TaskRequest:0x%x Function:0x%x construct failed\n",
fw_device, fw_task, scif_sas_task_request_get_function(fw_task)
));
}
}
return status;
}
// ---------------------------------------------------------------------------
SCI_STATUS scif_sas_internal_task_request_construct(
SCI_CONTROLLER_HANDLE_T scif_controller,
SCI_REMOTE_DEVICE_HANDLE_T scif_remote_device,
U16 io_tag,
void * task_request_memory,
SCI_TASK_REQUEST_HANDLE_T * scif_task_request,
U8 task_function
)
{
SCI_STATUS status;
SCIF_SAS_TASK_REQUEST_T * fw_task;
status = scif_sas_task_request_generic_construct(
scif_controller,
scif_remote_device,
io_tag,
NULL,
task_request_memory,
scif_task_request,
task_function
);
fw_task = (SCIF_SAS_TASK_REQUEST_T *)task_request_memory;
fw_task->parent.is_internal = TRUE;
return status;
}
// ---------------------------------------------------------------------------
SCI_STATUS scif_task_request_construct(
SCI_CONTROLLER_HANDLE_T scif_controller,
SCI_REMOTE_DEVICE_HANDLE_T scif_remote_device,
U16 io_tag,
void * user_task_request_object,
void * task_request_memory,
SCI_TASK_REQUEST_HANDLE_T * scif_task_request
)
{
SCI_STATUS status;
U8 task_function =
scif_cb_task_request_get_function(user_task_request_object);
status = scif_sas_task_request_generic_construct(
scif_controller,
scif_remote_device,
io_tag,
user_task_request_object,
task_request_memory,
scif_task_request,
task_function
);
return status;
}
// ---------------------------------------------------------------------------
void scif_sas_internal_task_request_destruct(
SCIF_SAS_TASK_REQUEST_T * fw_internal_task
)
{
SCIF_SAS_CONTROLLER_T * fw_controller =
fw_internal_task->parent.device->domain->controller;
scif_sas_controller_free_internal_request(fw_controller, fw_internal_task);
}
// ---------------------------------------------------------------------------
void scic_cb_task_request_complete(
SCI_CONTROLLER_HANDLE_T controller,
SCI_REMOTE_DEVICE_HANDLE_T remote_device,
SCI_TASK_REQUEST_HANDLE_T task_request,
SCI_TASK_STATUS completion_status
)
{
SCIF_SAS_CONTROLLER_T * fw_controller = (SCIF_SAS_CONTROLLER_T*)
sci_object_get_association(controller);
SCIF_SAS_REMOTE_DEVICE_T * fw_device = (SCIF_SAS_REMOTE_DEVICE_T*)
sci_object_get_association(remote_device);
SCIF_SAS_TASK_REQUEST_T * fw_task = (SCIF_SAS_TASK_REQUEST_T*)
sci_object_get_association(task_request);
SCI_STATUS status;
SCIF_LOG_TRACE((
sci_base_object_get_logger(fw_controller),
SCIF_LOG_OBJECT_TASK_MANAGEMENT,
"scic_cb_task_request_complete(0x%x, 0x%x, 0x%x, 0x%x) enter\n",
controller, remote_device, task_request, completion_status
));
status = fw_task->parent.state_handlers->complete_handler(
&fw_task->parent.parent
);
if (status == SCI_SUCCESS)
{
if (fw_task->parent.protocol_complete_handler != NULL)
{
status = fw_task->parent.protocol_complete_handler(
fw_controller, fw_device, &fw_task->parent, (SCI_STATUS *)&completion_status
);
}
if (status == SCI_SUCCESS)
{
SCIF_LOG_WARNING((
sci_base_object_get_logger(fw_task),
SCIF_LOG_OBJECT_TASK_MANAGEMENT,
"RemoteDevice:0x%x TaskRequest:0x%x Function:0x%x CompletionStatus:0x%x "
"completed\n",
fw_device, fw_task,
scif_sas_task_request_get_function(fw_task),
completion_status
));
// If this isn't an internal framework IO request, then simply pass the
// notification up to the SCIF user. Otherwise, immediately complete the
// task since there is no SCIF user to notify.
if (fw_task->parent.is_internal == FALSE)
{
scif_cb_task_request_complete(
fw_controller, fw_device, fw_task, completion_status
);
}
else
{
scif_controller_complete_task(
fw_controller,
fw_device,
fw_task
);
}
}
}
}
// ---------------------------------------------------------------------------
U32 scic_cb_ssp_task_request_get_lun(
void * scic_user_task_request
)
{
SCIF_SAS_TASK_REQUEST_T * fw_task = (SCIF_SAS_TASK_REQUEST_T*)
scic_user_task_request;
fw_task->parent.lun = scif_cb_task_request_get_lun(
fw_task->parent.parent.parent.associated_object
);
return fw_task->parent.lun;
}
// ---------------------------------------------------------------------------
U8 scic_cb_ssp_task_request_get_function(
void * scic_user_task_request
)
{
SCIF_SAS_TASK_REQUEST_T * fw_task = (SCIF_SAS_TASK_REQUEST_T*)
scic_user_task_request;
return scif_sas_task_request_get_function(fw_task);
}
// ---------------------------------------------------------------------------
U16 scic_cb_ssp_task_request_get_io_tag_to_manage(
void * scic_user_task_request
)
{
SCIF_SAS_TASK_REQUEST_T * fw_task = (SCIF_SAS_TASK_REQUEST_T*)
scic_user_task_request;
fw_task->io_tag_to_manage
= scif_cb_task_request_get_io_tag_to_manage(
fw_task->parent.parent.parent.associated_object
);
return fw_task->io_tag_to_manage;
}
// ---------------------------------------------------------------------------
void * scic_cb_ssp_task_request_get_response_data_address(
void * scic_user_task_request
)
{
SCIF_SAS_TASK_REQUEST_T * fw_task = (SCIF_SAS_TASK_REQUEST_T*)
scic_user_task_request;
return scif_cb_task_request_get_response_data_address(
fw_task->parent.parent.parent.associated_object
);
}
// ---------------------------------------------------------------------------
U32 scic_cb_ssp_task_request_get_response_data_length(
void * scic_user_task_request
)
{
SCIF_SAS_TASK_REQUEST_T * fw_task = (SCIF_SAS_TASK_REQUEST_T*)
scic_user_task_request;
return scif_cb_task_request_get_response_data_length(
fw_task->parent.parent.parent.associated_object
);
}
//******************************************************************************
//* P R O T E C T E D M E T H O D S
//******************************************************************************
/**
* @brief This method performs functionality required after a task management
* operation (either a task management request or a silicon task
* termination) has finished.
*
* @param[in] fw_task This parameter specifies the request that has
* the operation completing.
*
* @return none
*/
void scif_sas_task_request_operation_complete(
SCIF_SAS_TASK_REQUEST_T * fw_task
)
{
SCIF_LOG_TRACE((
sci_base_object_get_logger(fw_task),
SCIF_LOG_OBJECT_TASK_MANAGEMENT,
"scif_sas_task_request_operation_complete(0x%x) enter\n",
fw_task
));
fw_task->affected_request_count--;
SCIF_LOG_INFO((
sci_base_object_get_logger(fw_task),
SCIF_LOG_OBJECT_TASK_MANAGEMENT,
"TaskRequest:0x%x current affected request count:0x%x\n",
fw_task, fw_task->affected_request_count
));
}
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