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| Current File : //sys/dev/isci/scil/scif_sas_smp_io_request.c |
/*-
* 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: release/9.1.0/sys/dev/isci/scil/scif_sas_smp_io_request.c 231689 2012-02-14 15:58:49Z jimharris $");
/**
* @file
*
* @brief This file contains the method implementations for the
* SCIF_SAS_SMP_IO_REQUEST object. The contents will implement SMP
* specific functionality.
*/
#include <dev/isci/scil/scif_sas_smp_io_request.h>
#include <dev/isci/scil/scif_sas_logger.h>
#include <dev/isci/scil/scif_sas_controller.h>
#include <dev/isci/scil/sci_controller.h>
#include <dev/isci/scil/sci_status.h>
#include <dev/isci/scil/scic_io_request.h>
#include <dev/isci/scil/scic_user_callback.h>
#include <dev/isci/scil/intel_sas.h>
/**
* @brief This routine is to fill in the space given by core the SMP command
* frame. Then it calls core's construction.
*
* @param[in] fw_io The smp io request to be constructed.
* @param[in] smp_command The SMP request filled according to SAS spec.
*
* @return none
*/
void scif_sas_smp_request_construct(
SCIF_SAS_REQUEST_T * fw_request,
SMP_REQUEST_T * smp_command
)
{
void * command_iu_address =
scic_io_request_get_command_iu_address(fw_request->core_object);
//copy the smp_command to the address;
memcpy( (char*) command_iu_address,
smp_command,
sizeof(SMP_REQUEST_T)
);
scic_io_request_construct_smp(fw_request->core_object);
fw_request->protocol_complete_handler
= NULL;
}
/**
* @brief This method will perform all of the construction common to all
* SMP requests (e.g. filling in the frame type, zero-out memory,
* etc.).
*
* @param[out] smp_request This parameter specifies the SMP request
* structure containing the SMP request to be sent to the
* SMP target.
* @param[in] smp_function This parameter specifies the SMP function to
* sent.
* @param[in] smp_response_length This parameter specifies the length of
* the response (in DWORDs) that will be returned for this
* SMP request.
* @param[in] smp_request_length This parameter specifies the length of
* the request (in DWORDs) that will be sent.
*/
static
void scif_sas_smp_protocol_request_construct(
SMP_REQUEST_T * smp_request,
U8 smp_function,
U8 smp_response_length,
U8 smp_request_length
)
{
memset((char*)smp_request, 0, sizeof(SMP_REQUEST_T));
smp_request->header.smp_frame_type = SMP_FRAME_TYPE_REQUEST;
smp_request->header.function = smp_function;
smp_request->header.allocated_response_length = smp_response_length;
smp_request->header.request_length = smp_request_length;
}
/**
* @brief This method will allocate the internal IO request object and
* construct its contents based upon the supplied SMP request.
*
* @param[in] fw_controller This parameter specifies the controller object
* from which to allocate the internal IO request.
* @param[in] fw_device This parameter specifies the remote device for
* which the internal IO request is destined.
* @param[in] smp_request This parameter specifies the SMP request contents
* to be sent to the SMP target.
*
* @return void * The address of built scif sas smp request.
*/
static
void * scif_sas_smp_request_build(
SCIF_SAS_CONTROLLER_T * fw_controller,
SCIF_SAS_REMOTE_DEVICE_T * fw_device,
SMP_REQUEST_T * smp_request,
void * external_request_object,
void * external_memory
)
{
if (external_memory != NULL && external_request_object != NULL)
{
scif_sas_io_request_construct_smp(
fw_controller,
fw_device,
external_memory,
(char *)external_memory + sizeof(SCIF_SAS_IO_REQUEST_T),
SCI_CONTROLLER_INVALID_IO_TAG,
smp_request,
external_request_object
);
return external_memory;
}
else
{
void * internal_io_memory;
internal_io_memory = scif_sas_controller_allocate_internal_request(fw_controller);
ASSERT(internal_io_memory != NULL);
if (internal_io_memory != NULL)
{
//construct, only when we got valid io memory.
scif_sas_internal_io_request_construct_smp(
fw_controller,
fw_device,
internal_io_memory,
SCI_CONTROLLER_INVALID_IO_TAG,
smp_request
);
}
else
{
SCIF_LOG_ERROR((
sci_base_object_get_logger(fw_controller),
SCIF_LOG_OBJECT_IO_REQUEST,
"scif_sas_smp_request_build, no memory available!\n"
));
}
return internal_io_memory;
}
}
/**
* @brief construct a smp Report Genernal command to the fw_device.
*
* @param[in] fw_controller The framework controller object.
* @param[in] fw_device the framework device that the REPORT GENERAL command
* targets to.
*
* @return void * address to the built scif sas smp request.
*/
void * scif_sas_smp_request_construct_report_general(
SCIF_SAS_CONTROLLER_T * fw_controller,
SCIF_SAS_REMOTE_DEVICE_T * fw_device
)
{
SMP_REQUEST_T smp_report_general;
// Build the REPORT GENERAL request.
scif_sas_smp_protocol_request_construct(
&smp_report_general,
SMP_FUNCTION_REPORT_GENERAL,
sizeof(SMP_RESPONSE_REPORT_GENERAL_T) / sizeof(U32),
0
);
smp_report_general.request.report_general.crc = 0;
SCIF_LOG_INFO((
sci_base_object_get_logger(fw_device),
SCIF_LOG_OBJECT_IO_REQUEST | SCIF_LOG_OBJECT_DOMAIN_DISCOVERY,
"SMP REPORT GENERAL - Device:0x%x\n",
fw_device
));
return scif_sas_smp_request_build(
fw_controller, fw_device, &smp_report_general, NULL, NULL);
}
/**
* @brief construct a SMP Report Manufacturer Info request to the fw_device.
*
* @param[in] fw_controller The framework controller object.
* @param[in] fw_device the framework device that the REPORT MANUFACTURER
* INFO targets to.
*
* @return void * address to the built scif sas smp request.
*/
void * scif_sas_smp_request_construct_report_manufacturer_info(
SCIF_SAS_CONTROLLER_T * fw_controller,
SCIF_SAS_REMOTE_DEVICE_T * fw_device
)
{
SMP_REQUEST_T smp_report_manufacturer_info;
scif_sas_smp_protocol_request_construct(
&smp_report_manufacturer_info,
SMP_FUNCTION_REPORT_MANUFACTURER_INFORMATION,
sizeof(SMP_RESPONSE_REPORT_MANUFACTURER_INFORMATION_T) / sizeof(U32),
0
);
smp_report_manufacturer_info.request.report_general.crc = 0;
SCIF_LOG_INFO((
sci_base_object_get_logger(fw_device),
SCIF_LOG_OBJECT_IO_REQUEST | SCIF_LOG_OBJECT_DOMAIN_DISCOVERY,
"SMP REPORT MANUFACTURER_INFO - Device:0x%x\n",
fw_device
));
return scif_sas_smp_request_build(
fw_controller, fw_device, &smp_report_manufacturer_info, NULL, NULL
);
}
/**
* @brief construct a smp Discover command to the fw_device.
* @param[in] fw_controller The framework controller object.
* @param[in] fw_device the framework smp device that DISCOVER command targets
* to.
* @param[in] phy_identifier The phy index the DISCOVER command targets to.
*
* @return void * address to the built scif sas smp request.
*/
void * scif_sas_smp_request_construct_discover(
SCIF_SAS_CONTROLLER_T * fw_controller,
SCIF_SAS_REMOTE_DEVICE_T * fw_device,
U8 phy_identifier,
void * external_request_object,
void * external_memory
)
{
SMP_REQUEST_T smp_discover;
scif_sas_smp_protocol_request_construct(
&smp_discover,
SMP_FUNCTION_DISCOVER,
sizeof(SMP_RESPONSE_DISCOVER_T) / sizeof(U32),
sizeof(SMP_REQUEST_PHY_IDENTIFIER_T) / sizeof(U32)
);
smp_discover.request.discover.phy_identifier = phy_identifier;
SCIF_LOG_INFO((
sci_base_object_get_logger(fw_device),
SCIF_LOG_OBJECT_IO_REQUEST | SCIF_LOG_OBJECT_DOMAIN_DISCOVERY,
"SMP DISCOVER - Device:0x%x PhyId:0x%x\n",
fw_device, phy_identifier
));
return scif_sas_smp_request_build(
fw_controller, fw_device, &smp_discover,
external_request_object, external_memory
);
}
/**
* @brief construct a smp REPORT PHY SATA command to the fw_device.
* @param[in] fw_controller The framework controller object.
* @param[in] fw_device the framework smp device that DISCOVER command targets
* to.
* @param[in] phy_identifier The phy index the DISCOVER command targets to.
*
* @return void * address to the built scif sas smp request.
*/
void * scif_sas_smp_request_construct_report_phy_sata(
SCIF_SAS_CONTROLLER_T * fw_controller,
SCIF_SAS_REMOTE_DEVICE_T * fw_device,
U8 phy_identifier
)
{
SMP_REQUEST_T report_phy_sata;
scif_sas_smp_protocol_request_construct(
&report_phy_sata,
SMP_FUNCTION_REPORT_PHY_SATA,
sizeof(SMP_RESPONSE_REPORT_PHY_SATA_T) / sizeof(U32),
sizeof(SMP_REQUEST_PHY_IDENTIFIER_T) / sizeof(U32)
);
report_phy_sata.request.report_phy_sata.phy_identifier = phy_identifier;
SCIF_LOG_INFO((
sci_base_object_get_logger(fw_device),
SCIF_LOG_OBJECT_IO_REQUEST | SCIF_LOG_OBJECT_DOMAIN_DISCOVERY,
"SMP REPORT PHY SATA - Device:0x%x PhyId:0x%x\n",
fw_device, phy_identifier
));
return scif_sas_smp_request_build(
fw_controller, fw_device, &report_phy_sata, NULL, NULL);
}
/**
* @brief construct a smp REPORT PHY SATA command to the fw_device.
* @param[in] fw_controller The framework controller object.
* @param[in] fw_device the framework smp device that PHY CONTROL command
* targets to.
* @param[in] phy_identifier The phy index the DISCOVER command targets to.
*
* @return void * address to the built scif sas smp request.
*/
void * scif_sas_smp_request_construct_phy_control(
SCIF_SAS_CONTROLLER_T * fw_controller,
SCIF_SAS_REMOTE_DEVICE_T * fw_device,
U8 phy_operation,
U8 phy_identifier,
void * external_request_object,
void * external_memory
)
{
SMP_REQUEST_T phy_control;
scif_sas_smp_protocol_request_construct(
&phy_control,
SMP_FUNCTION_PHY_CONTROL,
0,
sizeof(SMP_REQUEST_PHY_CONTROL_T) / sizeof(U32)
);
phy_control.request.phy_control.phy_operation = phy_operation;
phy_control.request.phy_control.phy_identifier = phy_identifier;
return scif_sas_smp_request_build(
fw_controller, fw_device, &phy_control,
external_request_object, external_memory
);
}
/**
* @brief construct a smp CONFIG ROUTE INFO command to the fw_device.
*
* @param[in] fw_controller The framework controller object.
* @param[in] fw_device the framework smp device that PHY CONTROL command
* targets to.
* @param[in] phy_id The phy, whose route entry at route_index is to be configured.
* @param[in] route_index The index of a phy's route entry that is to be configured.
* @param[in] destination_sas_address A sas address for an route table entry
*
* @return void * address to the built scif sas smp request.
*/
void * scif_sas_smp_request_construct_config_route_info(
struct SCIF_SAS_CONTROLLER * fw_controller,
struct SCIF_SAS_REMOTE_DEVICE * fw_device,
U8 phy_id,
U16 route_index,
SCI_SAS_ADDRESS_T destination_sas_address,
BOOL disable_expander_route_entry
)
{
SMP_REQUEST_T config_route_info;
scif_sas_smp_protocol_request_construct(
&config_route_info,
SMP_FUNCTION_CONFIGURE_ROUTE_INFORMATION,
0,
sizeof(SMP_REQUEST_CONFIGURE_ROUTE_INFORMATION_T) / sizeof(U32)
);
config_route_info.request.configure_route_information.phy_identifier = phy_id;
config_route_info.request.configure_route_information.expander_route_index_high =
((route_index & 0xff00) >> 8);
config_route_info.request.configure_route_information.expander_route_index =
route_index & 0xff;
config_route_info.request.configure_route_information.routed_sas_address[0] =
destination_sas_address.high;
config_route_info.request.configure_route_information.routed_sas_address[1] =
destination_sas_address.low;
if (disable_expander_route_entry == TRUE)
config_route_info.request.configure_route_information.disable_route_entry = 1;
return scif_sas_smp_request_build(
fw_controller, fw_device, &config_route_info,
NULL, NULL
);
}
/**
* @brief This method retry the internal smp request.
*
* @param[in] fw_device This parameter specifies the remote device for
* which the internal IO request is destined.
* @param[in] retry_count This parameter specifies how many times the
* old smp request has been retried.
*
* @return none.
*/
SCI_STATUS scif_sas_smp_internal_request_retry(
SCIF_SAS_REMOTE_DEVICE_T * fw_device
)
{
SCIF_SAS_CONTROLLER_T * fw_controller;
SCIF_SAS_IO_REQUEST_T * new_io;
void * new_request_memory = NULL;
U8 retry_count = fw_device->protocol_device.smp_device.io_retry_count;
SCIF_LOG_TRACE((
sci_base_object_get_logger(fw_device),
SCIF_LOG_OBJECT_IO_REQUEST | SCIF_LOG_OBJECT_DOMAIN_DISCOVERY,
"scif_sas_smp_internal_request_retry(0x%x, 0x%x) time %d!\n",
fw_device, retry_count
));
fw_controller = fw_device->domain->controller;
switch (fw_device->protocol_device.smp_device.current_smp_request)
{
case SMP_FUNCTION_REPORT_GENERAL:
new_request_memory = scif_sas_smp_request_construct_report_general(
fw_controller, fw_device
);
break;
case SMP_FUNCTION_DISCOVER:
//We are retrying an internal io. So we are going to allocate
//a new memory from internal io memory pool.
new_request_memory = scif_sas_smp_request_construct_discover(
fw_controller, fw_device,
fw_device->protocol_device.smp_device.current_activity_phy_index,
NULL, NULL
);
break;
case SMP_FUNCTION_REPORT_PHY_SATA:
new_request_memory = scif_sas_smp_request_construct_report_phy_sata(
fw_controller, fw_device,
fw_device->protocol_device.smp_device.current_activity_phy_index
);
break;
default:
//unsupported case, TBD
break;
} //end of switch
if (new_request_memory != NULL)
{
//set the retry count to new built smp request.
new_io = (SCIF_SAS_IO_REQUEST_T *) new_request_memory;
new_io->retry_count = ++retry_count;
//need to schedule the DPC here.
scif_cb_start_internal_io_task_schedule(
fw_controller,
scif_sas_controller_start_high_priority_io,
fw_controller
);
return SCI_SUCCESS;
}
else
return SCI_FAILURE_INSUFFICIENT_RESOURCES;
}
/**
* @brief This method retry the external smp request.
*
* @param[in] fw_device This parameter specifies the remote device for
* which the internal IO request is destined.
* @param[in] old_internal_io This parameter specifies the old smp request to be
* retried.
*
* @return none.
*/
SCI_STATUS scif_sas_smp_external_request_retry(
SCIF_SAS_IO_REQUEST_T * old_io
)
{
SCIF_SAS_REMOTE_DEVICE_T * fw_device = old_io->parent.device;
SCIF_SAS_CONTROLLER_T * fw_controller;
SCIF_SAS_IO_REQUEST_T * new_io;
void * new_request_memory = NULL;
U8 retry_count = old_io->retry_count;
SCIF_LOG_TRACE((
sci_base_object_get_logger(fw_device),
SCIF_LOG_OBJECT_IO_REQUEST | SCIF_LOG_OBJECT_DOMAIN_DISCOVERY,
"scif_sas_smp_external_request_retry(0x%x) time %d!\n",
old_io
));
fw_controller = fw_device->domain->controller;
// Before we construct new io using the same memory, we need to
// remove the IO from the list of outstanding requests on the domain
// so that we don't damage the domain's fast list of request.
sci_fast_list_remove_element(&old_io->parent.list_element);
switch (fw_device->protocol_device.smp_device.current_smp_request)
{
case SMP_FUNCTION_DISCOVER:
//we are retrying an external io, we are going to reuse the
//old io's memory. new_request_memory is same as old_io.
new_request_memory = scif_sas_smp_request_construct_discover(
fw_controller, fw_device,
fw_device->protocol_device.smp_device.current_activity_phy_index,
(void *)sci_object_get_association(old_io),
(void *)old_io
);
break;
case SMP_FUNCTION_PHY_CONTROL:
//Phy Control command always uses external io memory.
new_request_memory = scif_sas_smp_request_construct_phy_control(
fw_controller, fw_device, PHY_OPERATION_HARD_RESET,
fw_device->protocol_device.smp_device.current_activity_phy_index,
(void *)sci_object_get_association(old_io),
(void *)old_io
);
break;
default:
//unsupported case, TBD
return SCI_FAILURE;
} //end of switch
//set the retry count to new built smp request.
new_io = (SCIF_SAS_IO_REQUEST_T *) new_request_memory;
new_io->retry_count = ++retry_count;
//put into the high priority queue.
sci_pool_put(fw_controller->hprq.pool, (POINTER_UINT) new_request_memory);
//schedule the DPC to start new io.
scif_cb_start_internal_io_task_schedule(
fw_controller, scif_sas_controller_start_high_priority_io, fw_controller
);
return SCI_SUCCESS;
}