873 lines
30 KiB
C
873 lines
30 KiB
C
/*-
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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* The full GNU General Public License is included in this distribution
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* in the file called LICENSE.GPL.
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*
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* BSD LICENSE
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*
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* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <dev/isci/scil/scic_sds_smp_request.h>
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#include <dev/isci/scil/scic_sds_logger.h>
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#include <dev/isci/scil/scic_sds_controller.h>
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#include <dev/isci/scil/scic_sds_remote_device.h>
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#include <dev/isci/scil/scic_remote_device.h>
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#include <dev/isci/scil/sci_util.h>
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#include <dev/isci/sci_environment.h>
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#include <dev/isci/scil/intel_sas.h>
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#include <dev/isci/scil/scic_sds_request.h>
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#include <dev/isci/scil/scic_controller.h>
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#include <dev/isci/scil/scu_completion_codes.h>
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#include <dev/isci/scil/scu_task_context.h>
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#include <dev/isci/scil/sci_base_state_machine.h>
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/**
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* This method return the memory space required for STP PIO requests.
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*
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* @return U32
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*/
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U32 scic_sds_smp_request_get_object_size(void)
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{
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return sizeof(SCIC_SDS_REQUEST_T)
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+ sizeof(SMP_REQUEST_T)
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+ sizeof(U32)
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+ sizeof(SMP_RESPONSE_T)
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+ sizeof(U32)
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+ sizeof(SCU_TASK_CONTEXT_T)
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+ CACHE_LINE_SIZE;
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}
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/**
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* This macro returns the address of the smp command buffer in the smp request
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* memory. No need to cast to SMP request type.
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*/
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#define scic_sds_smp_request_get_command_buffer_unaligned(memory) \
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( ((char *)(memory)) + sizeof(SCIC_SDS_REQUEST_T) )
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/**
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* This macro aligns the smp command buffer in DWORD alignment
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*/
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#define scic_sds_smp_request_align_command_buffer(address) \
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((char *)( \
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(((POINTER_UINT)(address)) + (sizeof(U32) - 1)) \
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& ~(sizeof(U32)- 1) \
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))
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/**
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* This macro returns the DWORD-aligned smp command buffer
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*/
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#define scic_sds_smp_request_get_command_buffer(memory) \
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((char *) \
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((char *)scic_sds_smp_request_align_command_buffer( \
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(char *) scic_sds_smp_request_get_command_buffer_unaligned(memory) \
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)))
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/**
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* This macro returns the address of the smp response buffer in the smp request
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* memory.
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*/
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#define scic_sds_smp_request_get_response_buffer_unaligned(memory) \
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( ((char *)(scic_sds_smp_request_get_command_buffer(memory))) \
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+ sizeof(SMP_REQUEST_T) )
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/**
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* This macro aligns the smp command buffer in DWORD alignment
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*/
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#define scic_sds_smp_request_align_response_buffer(address) \
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((char *)( \
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(((POINTER_UINT)(address)) + (sizeof(U32) - 1)) \
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& ~(sizeof(U32)- 1) \
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))
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/**
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* This macro returns the DWORD-aligned smp resposne buffer
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*/
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#define scic_sds_smp_request_get_response_buffer(memory) \
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((char *) \
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((char *)scic_sds_smp_request_align_response_buffer( \
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(char *) scic_sds_smp_request_get_response_buffer_unaligned(memory) \
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)))
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/**
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* This macro returs the task context buffer for the SMP request.
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*/
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#define scic_sds_smp_request_get_task_context_buffer_unaligned(memory) \
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((SCU_TASK_CONTEXT_T *)( \
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((char *)(scic_sds_smp_request_get_response_buffer(memory))) \
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+ sizeof(SMP_RESPONSE_T) \
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))
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/**
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* This macro returns the dword-aligned smp task context buffer
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*/
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#define scic_sds_smp_request_get_task_context_buffer(memory) \
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((SCU_TASK_CONTEXT_T *)( \
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((char *)scic_sds_request_align_task_context_buffer( \
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(char *)scic_sds_smp_request_get_task_context_buffer_unaligned(memory)) \
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)))
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/**
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* @brief This method build the remainder of the IO request object.
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*
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* @pre The scic_sds_general_request_construct() must be called before this
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* call is valid.
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*
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* @param[in] this_request This parameter specifies the request object being
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* constructed.
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*
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* @return none
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*/
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void scic_sds_smp_request_assign_buffers(
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SCIC_SDS_REQUEST_T *this_request
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)
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{
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// Assign all of the buffer pointers
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this_request->command_buffer =
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scic_sds_smp_request_get_command_buffer(this_request);
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this_request->response_buffer =
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scic_sds_smp_request_get_response_buffer(this_request);
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this_request->sgl_element_pair_buffer = NULL;
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if (this_request->was_tag_assigned_by_user == FALSE)
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{
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this_request->task_context_buffer =
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scic_sds_smp_request_get_task_context_buffer(this_request);
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}
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}
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/**
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* @brief This method is called by the SCI user to build an SMP
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* IO request.
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*
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* @pre
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* - The user must have previously called scic_io_request_construct()
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* on the supplied IO request.
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*
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* @param[in] scic_io_request This parameter specifies the handle to the
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* io request object to be built.
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*
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* @return Indicate if the controller successfully built the IO request.
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* @retval SCI_SUCCESS This value is returned if the IO request was
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* successfully built.
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* @retval SCI_FAILURE_UNSUPPORTED_PROTOCOL This value is returned if the
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* remote_device does not support the SMP protocol.
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* @retval SCI_FAILURE_INVALID_ASSOCIATION This value is returned if the
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* user did not properly set the association between the SCIC IO
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* request and the user's IO request. Please refer to the
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* sci_object_set_association() routine for more
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* information.
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*/
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SCI_STATUS scic_io_request_construct_smp(
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SCI_IO_REQUEST_HANDLE_T scic_smp_request
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)
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{
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SMP_REQUEST_T smp_request;
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SCIC_SDS_REQUEST_T *this_request = (SCIC_SDS_REQUEST_T *) scic_smp_request;
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SCIC_LOG_TRACE((
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sci_base_object_get_logger(this_request),
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SCIC_LOG_OBJECT_SMP_IO_REQUEST,
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"scic_io_request_construct_smp(0x%x) enter\n",
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this_request
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));
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this_request->protocol = SCIC_SMP_PROTOCOL;
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this_request->has_started_substate_machine = TRUE;
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// Construct the started sub-state machine.
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sci_base_state_machine_construct(
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&this_request->started_substate_machine,
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&this_request->parent.parent,
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scic_sds_smp_request_started_substate_table,
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SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_RESPONSE
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);
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// Construct the SMP SCU Task Context
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memcpy((char *)&smp_request,
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this_request->command_buffer,
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sizeof(SMP_REQUEST_T));
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// Look at the SMP requests' header fields; for certain SAS 1.x SMP
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// functions under SAS 2.0, a zero request length really indicates
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// a non-zero default length.
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if( smp_request.header.request_length == 0 )
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{
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switch( smp_request.header.function )
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{
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case SMP_FUNCTION_DISCOVER:
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case SMP_FUNCTION_REPORT_PHY_ERROR_LOG:
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case SMP_FUNCTION_REPORT_PHY_SATA:
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case SMP_FUNCTION_REPORT_ROUTE_INFORMATION:
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smp_request.header.request_length = 2;
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break;
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case SMP_FUNCTION_CONFIGURE_ROUTE_INFORMATION:
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case SMP_FUNCTION_PHY_CONTROL:
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case SMP_FUNCTION_PHY_TEST:
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smp_request.header.request_length = 9;
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break;
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// Default - zero is a valid default for 2.0.
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}
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}
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scu_smp_request_construct_task_context(
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this_request,
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&smp_request
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);
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sci_base_state_machine_change_state(
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&this_request->parent.state_machine,
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SCI_BASE_REQUEST_STATE_CONSTRUCTED
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);
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return SCI_SUCCESS;
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}
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/**
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* @brief This method is called by the SCI user to build an SMP pass-through
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* IO request.
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*
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* @pre
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* - The user must have previously called scic_io_request_construct()
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* on the supplied IO request.
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*
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* @param[in] scic_smp_request This parameter specifies the handle to the
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* io request object to be built.
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*
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* @param[in] passthru_cb This parameter specifies the pointer to the callback
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* structure that contains the function pointers
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*
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* @return Indicate if the controller successfully built the IO request.
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*/
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SCI_STATUS scic_io_request_construct_smp_pass_through(
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SCI_IO_REQUEST_HANDLE_T scic_smp_request,
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SCIC_SMP_PASSTHRU_REQUEST_CALLBACKS_T *passthru_cb
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)
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{
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SMP_REQUEST_T smp_request;
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U8 * request_buffer;
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U32 request_buffer_length_in_bytes;
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SCIC_SDS_REQUEST_T *this_request = (SCIC_SDS_REQUEST_T *) scic_smp_request;
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SCIC_LOG_TRACE((
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sci_base_object_get_logger(this_request),
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SCIC_LOG_OBJECT_SMP_IO_REQUEST,
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"scic_io_request_construct_smp_pass_through(0x%x) enter\n",
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this_request
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));
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this_request->protocol = SCIC_SMP_PROTOCOL;
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this_request->has_started_substate_machine = TRUE;
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// Call the callback function to retrieve the SMP passthrough request
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request_buffer_length_in_bytes = passthru_cb->scic_cb_smp_passthru_get_request (
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(void *)this_request,
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&request_buffer
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);
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//copy the request to smp request
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memcpy((char *)&smp_request.request.vendor_specific_request,
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request_buffer,
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request_buffer_length_in_bytes);
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//the header length in smp_request is in dwords - the sas spec has similar way,
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//but the csmi header contains the number of bytes, so we need to convert the
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//number of bytes to number of dwords
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smp_request.header.request_length = (U8) (request_buffer_length_in_bytes / sizeof (U32));
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//Grab the other needed fields from the smp request using callbacks
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smp_request.header.smp_frame_type = passthru_cb->scic_cb_smp_passthru_get_frame_type ((void *)this_request);
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smp_request.header.function = passthru_cb->scic_cb_smp_passthru_get_function ((void *)this_request);
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smp_request.header.allocated_response_length = passthru_cb->scic_cb_smp_passthru_get_allocated_response_length((void *)this_request);
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// Construct the started sub-state machine.
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sci_base_state_machine_construct(
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&this_request->started_substate_machine,
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&this_request->parent.parent,
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scic_sds_smp_request_started_substate_table,
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SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_RESPONSE
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);
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// Construct the SMP SCU Task Context
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scu_smp_request_construct_task_context (this_request, &smp_request);
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sci_base_state_machine_change_state(
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&this_request->parent.state_machine,
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SCI_BASE_REQUEST_STATE_CONSTRUCTED
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);
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return SCI_SUCCESS;
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}
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/**
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* @brief This method will fill in the SCU Task Context for a SMP request. The
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* following important settings are utilized:
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*
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* -# task_type == SCU_TASK_TYPE_SMP. This simply indicates
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* that a normal request type (i.e. non-raw frame) is being
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* utilized to perform task management.
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* -# control_frame == 1. This ensures that the proper endianness
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* is set so that the bytes are transmitted in the right order
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* for a smp request frame.
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*
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* @param[in] this_request This parameter specifies the smp request object
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* being constructed.
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*
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* @return none
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*/
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void scu_smp_request_construct_task_context(
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SCIC_SDS_REQUEST_T *this_request,
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SMP_REQUEST_T *smp_request
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)
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{
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SCI_PHYSICAL_ADDRESS physical_address;
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SCIC_SDS_CONTROLLER_T *owning_controller;
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SCIC_SDS_REMOTE_DEVICE_T *target_device;
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SCIC_SDS_PORT_T *target_port;
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SCU_TASK_CONTEXT_T *task_context;
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//byte swap the smp request.
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scic_word_copy_with_swap(
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this_request->command_buffer,
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(U32*) smp_request,
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sizeof(SMP_REQUEST_T)/sizeof(U32)
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);
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task_context = scic_sds_request_get_task_context(this_request);
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owning_controller = scic_sds_request_get_controller(this_request);
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target_device = scic_sds_request_get_device(this_request);
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target_port = scic_sds_request_get_port(this_request);
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SCIC_LOG_TRACE((
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sci_base_object_get_logger(this_request),
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SCIC_LOG_OBJECT_SMP_IO_REQUEST,
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"scu_smp_request_construct_task_context(0x%x) contents\n"
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" reqlen=%x; function=%x;\n",
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this_request,
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smp_request->header.request_length,
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smp_request->header.function
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));
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// Fill in the TC with the its required data
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// 00h
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task_context->priority = 0;
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task_context->initiator_request = 1;
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task_context->connection_rate =
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scic_remote_device_get_connection_rate(target_device);
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task_context->protocol_engine_index =
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scic_sds_controller_get_protocol_engine_group(owning_controller);
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task_context->logical_port_index =
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scic_sds_port_get_index(target_port);
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task_context->protocol_type = SCU_TASK_CONTEXT_PROTOCOL_SMP;
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task_context->abort = 0;
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task_context->valid = SCU_TASK_CONTEXT_VALID;
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task_context->context_type = SCU_TASK_CONTEXT_TYPE;
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//04h
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task_context->remote_node_index = this_request->target_device->rnc->remote_node_index;
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task_context->command_code = 0;
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task_context->task_type = SCU_TASK_TYPE_SMP_REQUEST;
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//08h
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task_context->link_layer_control = 0;
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task_context->do_not_dma_ssp_good_response = 1;
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task_context->strict_ordering = 0;
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task_context->control_frame = 1;
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task_context->timeout_enable = 0;
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task_context->block_guard_enable = 0;
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//0ch
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task_context->address_modifier = 0;
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//10h
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task_context->ssp_command_iu_length = smp_request->header.request_length;
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//14h
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task_context->transfer_length_bytes = 0;
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//18h ~ 30h, protocol specific
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// since commandIU has been build by framework at this point, we just
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// copy the frist DWord from command IU to this location.
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memcpy((void *)(&task_context->type.smp), this_request->command_buffer, sizeof(U32) );
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//40h
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// "For SMP you could program it to zero. We would prefer that way so that
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// done code will be consistent." - Venki
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task_context->task_phase = 0;
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if (this_request->was_tag_assigned_by_user)
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{
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// Build the task context now since we have already read the data
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this_request->post_context = (
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SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC
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| (
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scic_sds_controller_get_protocol_engine_group(owning_controller)
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<< SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT
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)
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| (
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scic_sds_port_get_index(target_port)
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<< SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT
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)
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| scic_sds_io_tag_get_index(this_request->io_tag)
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);
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}
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else
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{
|
|
// Build the task context now since we have already read the data
|
|
this_request->post_context = (
|
|
SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC
|
|
| (
|
|
scic_sds_controller_get_protocol_engine_group(owning_controller)
|
|
<< SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT
|
|
)
|
|
| (
|
|
scic_sds_port_get_index(target_port)
|
|
<< SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT
|
|
)
|
|
// This is not assigned because we have to wait until we get a TCi
|
|
);
|
|
}
|
|
|
|
// Copy the physical address for the command buffer to the SCU Task Context
|
|
// command buffer should not contain command header.
|
|
scic_cb_io_request_get_physical_address(
|
|
scic_sds_request_get_controller(this_request),
|
|
this_request,
|
|
((char *)(this_request->command_buffer) + sizeof(U32)),
|
|
&physical_address
|
|
);
|
|
|
|
task_context->command_iu_upper =
|
|
sci_cb_physical_address_upper(physical_address);
|
|
task_context->command_iu_lower =
|
|
sci_cb_physical_address_lower(physical_address);
|
|
|
|
|
|
//SMP response comes as UF, so no need to set response IU address.
|
|
task_context->response_iu_upper = 0;
|
|
task_context->response_iu_lower = 0;
|
|
}
|
|
|
|
//******************************************************************************
|
|
//* SMP REQUEST STATE MACHINE
|
|
//******************************************************************************
|
|
|
|
/**
|
|
* @brief This method processes an unsolicited frame while the SMP request is
|
|
* waiting for a response frame. It will copy the response data, release
|
|
* the unsolicited frame, and transition the request to the
|
|
* SCI_BASE_REQUEST_STATE_COMPLETED state.
|
|
*
|
|
* @param[in] this_request This parameter specifies the request for which
|
|
* the unsolicited frame was received.
|
|
* @param[in] frame_index This parameter indicates the unsolicited frame
|
|
* index that should contain the response.
|
|
*
|
|
* @return This method returns an indication of whether the response
|
|
* frame was handled successfully or not.
|
|
* @retval SCI_SUCCESS Currently this value is always returned and indicates
|
|
* successful processing of the TC response.
|
|
*/
|
|
static
|
|
SCI_STATUS scic_sds_smp_request_await_response_frame_handler(
|
|
SCIC_SDS_REQUEST_T * this_request,
|
|
U32 frame_index
|
|
)
|
|
{
|
|
SCI_STATUS status;
|
|
void * frame_header;
|
|
SMP_RESPONSE_HEADER_T * this_frame_header;
|
|
U8 * user_smp_buffer = this_request->response_buffer;
|
|
|
|
// Save off the controller, so that we do not touch the request after it
|
|
// is completed.
|
|
SCIC_SDS_CONTROLLER_T * controller = scic_sds_request_get_controller(this_request);
|
|
|
|
SCIC_LOG_TRACE((
|
|
sci_base_object_get_logger(this_request),
|
|
SCIC_LOG_OBJECT_SMP_IO_REQUEST,
|
|
"scic_sds_smp_request_await_response_frame_handler(0x%x, 0x%x) enter\n",
|
|
this_request, frame_index
|
|
));
|
|
|
|
status = scic_sds_unsolicited_frame_control_get_header(
|
|
&(controller->uf_control),
|
|
frame_index,
|
|
&frame_header
|
|
);
|
|
|
|
//byte swap the header.
|
|
scic_word_copy_with_swap(
|
|
(U32*) user_smp_buffer,
|
|
frame_header,
|
|
sizeof(SMP_RESPONSE_HEADER_T)/sizeof(U32)
|
|
);
|
|
this_frame_header = (SMP_RESPONSE_HEADER_T*) user_smp_buffer;
|
|
|
|
if (this_frame_header->smp_frame_type == SMP_FRAME_TYPE_RESPONSE)
|
|
{
|
|
void * smp_response_buffer;
|
|
|
|
status = scic_sds_unsolicited_frame_control_get_buffer(
|
|
&(controller->uf_control),
|
|
frame_index,
|
|
&smp_response_buffer
|
|
);
|
|
|
|
scic_word_copy_with_swap(
|
|
(U32*) (user_smp_buffer + sizeof(SMP_RESPONSE_HEADER_T)),
|
|
smp_response_buffer,
|
|
sizeof(SMP_RESPONSE_BODY_T)/sizeof(U32)
|
|
);
|
|
if (this_frame_header->function == SMP_FUNCTION_DISCOVER)
|
|
{
|
|
SMP_RESPONSE_T * this_smp_response;
|
|
|
|
this_smp_response = (SMP_RESPONSE_T *)user_smp_buffer;
|
|
|
|
// Some expanders only report an attached SATA device, and
|
|
// not an STP target. Since the core depends on the STP
|
|
// target attribute to correctly build I/O, set the bit now
|
|
// if necessary.
|
|
if (this_smp_response->response.discover.protocols.u.bits.attached_sata_device
|
|
&& !this_smp_response->response.discover.protocols.u.bits.attached_stp_target)
|
|
{
|
|
this_smp_response->response.discover.protocols.u.bits.attached_stp_target = 1;
|
|
|
|
SCIC_LOG_TRACE((
|
|
sci_base_object_get_logger(this_request),
|
|
SCIC_LOG_OBJECT_SMP_IO_REQUEST,
|
|
"scic_sds_smp_request_await_response_frame_handler(0x%x) Found SATA dev, setting STP bit.\n",
|
|
this_request
|
|
));
|
|
}
|
|
}
|
|
|
|
//Don't need to copy to user space. User instead will refer to
|
|
//core request's response buffer.
|
|
|
|
//copy the smp response to framework smp request's response buffer.
|
|
//scic_sds_smp_request_copy_response(this_request);
|
|
|
|
scic_sds_request_set_status(
|
|
this_request, SCU_TASK_DONE_GOOD, SCI_SUCCESS
|
|
);
|
|
|
|
sci_base_state_machine_change_state(
|
|
&this_request->started_substate_machine,
|
|
SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_TC_COMPLETION
|
|
);
|
|
}
|
|
else
|
|
{
|
|
// This was not a response frame why did it get forwarded?
|
|
SCIC_LOG_ERROR((
|
|
sci_base_object_get_logger(this_request),
|
|
SCIC_LOG_OBJECT_SMP_IO_REQUEST,
|
|
"SCIC SMP Request 0x%08x received unexpected frame %d type 0x%02x\n",
|
|
this_request, frame_index, this_frame_header->smp_frame_type
|
|
));
|
|
|
|
scic_sds_request_set_status(
|
|
this_request,
|
|
SCU_TASK_DONE_SMP_FRM_TYPE_ERR,
|
|
SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR
|
|
);
|
|
|
|
sci_base_state_machine_change_state(
|
|
&this_request->parent.state_machine,
|
|
SCI_BASE_REQUEST_STATE_COMPLETED
|
|
);
|
|
}
|
|
|
|
scic_sds_controller_release_frame(
|
|
controller, frame_index
|
|
);
|
|
|
|
return SCI_SUCCESS;
|
|
}
|
|
|
|
|
|
/**
|
|
* @brief This method processes an abnormal TC completion while the SMP
|
|
* request is waiting for a response frame. It decides what
|
|
* happened to the IO based on TC completion status.
|
|
*
|
|
* @param[in] this_request This parameter specifies the request for which
|
|
* the TC completion was received.
|
|
* @param[in] completion_code This parameter indicates the completion status
|
|
* information for the TC.
|
|
*
|
|
* @return Indicate if the tc completion handler was successful.
|
|
* @retval SCI_SUCCESS currently this method always returns success.
|
|
*/
|
|
static
|
|
SCI_STATUS scic_sds_smp_request_await_response_tc_completion_handler(
|
|
SCIC_SDS_REQUEST_T * this_request,
|
|
U32 completion_code
|
|
)
|
|
{
|
|
SCIC_LOG_TRACE((
|
|
sci_base_object_get_logger(this_request),
|
|
SCIC_LOG_OBJECT_SMP_IO_REQUEST,
|
|
"scic_sds_smp_request_await_response_tc_completion_handler(0x%x, 0x%x) enter\n",
|
|
this_request, completion_code
|
|
));
|
|
|
|
switch (SCU_GET_COMPLETION_TL_STATUS(completion_code))
|
|
{
|
|
case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD):
|
|
//In the AWAIT RESPONSE state, any TC completion is unexpected.
|
|
//but if the TC has success status, we complete the IO anyway.
|
|
scic_sds_request_set_status(
|
|
this_request, SCU_TASK_DONE_GOOD, SCI_SUCCESS
|
|
);
|
|
|
|
sci_base_state_machine_change_state(
|
|
&this_request->parent.state_machine,
|
|
SCI_BASE_REQUEST_STATE_COMPLETED
|
|
);
|
|
break;
|
|
|
|
case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_SMP_RESP_TO_ERR):
|
|
case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_SMP_UFI_ERR):
|
|
case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_SMP_FRM_TYPE_ERR):
|
|
case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_SMP_LL_RX_ERR):
|
|
//These status has been seen in a specific LSI expander, which sometimes
|
|
//is not able to send smp response within 2 ms. This causes our hardware
|
|
//break the connection and set TC completion with one of these SMP_XXX_XX_ERR
|
|
//status. For these type of error, we ask scic user to retry the request.
|
|
scic_sds_request_set_status(
|
|
this_request, SCU_TASK_DONE_SMP_RESP_TO_ERR, SCI_FAILURE_RETRY_REQUIRED
|
|
);
|
|
|
|
sci_base_state_machine_change_state(
|
|
&this_request->parent.state_machine,
|
|
SCI_BASE_REQUEST_STATE_COMPLETED
|
|
);
|
|
break;
|
|
|
|
default:
|
|
// All other completion status cause the IO to be complete. If a NAK
|
|
// was received, then it is up to the user to retry the request.
|
|
scic_sds_request_set_status(
|
|
this_request,
|
|
SCU_NORMALIZE_COMPLETION_STATUS(completion_code),
|
|
SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR
|
|
);
|
|
|
|
sci_base_state_machine_change_state(
|
|
&this_request->parent.state_machine,
|
|
SCI_BASE_REQUEST_STATE_COMPLETED
|
|
);
|
|
break;
|
|
}
|
|
|
|
return SCI_SUCCESS;
|
|
}
|
|
|
|
|
|
/**
|
|
* @brief This method processes the completions transport layer (TL) status
|
|
* to determine if the SMP request was sent successfully. If the SMP
|
|
* request was sent successfully, then the state for the SMP request
|
|
* transits to waiting for a response frame.
|
|
*
|
|
* @param[in] this_request This parameter specifies the request for which
|
|
* the TC completion was received.
|
|
* @param[in] completion_code This parameter indicates the completion status
|
|
* information for the TC.
|
|
*
|
|
* @return Indicate if the tc completion handler was successful.
|
|
* @retval SCI_SUCCESS currently this method always returns success.
|
|
*/
|
|
static
|
|
SCI_STATUS scic_sds_smp_request_await_tc_completion_tc_completion_handler(
|
|
SCIC_SDS_REQUEST_T * this_request,
|
|
U32 completion_code
|
|
)
|
|
{
|
|
SCIC_LOG_TRACE((
|
|
sci_base_object_get_logger(this_request),
|
|
SCIC_LOG_OBJECT_SMP_IO_REQUEST,
|
|
"scic_sds_smp_request_await_tc_completion_tc_completion_handler(0x%x, 0x%x) enter\n",
|
|
this_request, completion_code
|
|
));
|
|
|
|
switch (SCU_GET_COMPLETION_TL_STATUS(completion_code))
|
|
{
|
|
case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD):
|
|
scic_sds_request_set_status(
|
|
this_request, SCU_TASK_DONE_GOOD, SCI_SUCCESS
|
|
);
|
|
|
|
sci_base_state_machine_change_state(
|
|
&this_request->parent.state_machine,
|
|
SCI_BASE_REQUEST_STATE_COMPLETED
|
|
);
|
|
break;
|
|
|
|
default:
|
|
// All other completion status cause the IO to be complete. If a NAK
|
|
// was received, then it is up to the user to retry the request.
|
|
scic_sds_request_set_status(
|
|
this_request,
|
|
SCU_NORMALIZE_COMPLETION_STATUS(completion_code),
|
|
SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR
|
|
);
|
|
|
|
sci_base_state_machine_change_state(
|
|
&this_request->parent.state_machine,
|
|
SCI_BASE_REQUEST_STATE_COMPLETED
|
|
);
|
|
break;
|
|
}
|
|
|
|
return SCI_SUCCESS;
|
|
}
|
|
|
|
|
|
SCIC_SDS_IO_REQUEST_STATE_HANDLER_T
|
|
scic_sds_smp_request_started_substate_handler_table
|
|
[SCIC_SDS_SMP_REQUEST_STARTED_MAX_SUBSTATES] =
|
|
{
|
|
// SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_RESPONSE
|
|
{
|
|
{
|
|
scic_sds_request_default_start_handler,
|
|
scic_sds_request_started_state_abort_handler,
|
|
scic_sds_request_default_complete_handler,
|
|
scic_sds_request_default_destruct_handler
|
|
},
|
|
scic_sds_smp_request_await_response_tc_completion_handler,
|
|
scic_sds_request_default_event_handler,
|
|
scic_sds_smp_request_await_response_frame_handler
|
|
},
|
|
// SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_TC_COMPLETION
|
|
{
|
|
{
|
|
scic_sds_request_default_start_handler,
|
|
scic_sds_request_started_state_abort_handler,
|
|
scic_sds_request_default_complete_handler,
|
|
scic_sds_request_default_destruct_handler
|
|
},
|
|
scic_sds_smp_request_await_tc_completion_tc_completion_handler,
|
|
scic_sds_request_default_event_handler,
|
|
scic_sds_request_default_frame_handler
|
|
}
|
|
};
|
|
|
|
/**
|
|
* @brief This method performs the actions required when entering the
|
|
* SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_TC_RESPONSE sub-state.
|
|
* This includes setting the IO request state handlers for this
|
|
* sub-state.
|
|
*
|
|
* @param[in] object This parameter specifies the request object for which
|
|
* the sub-state change is occurring.
|
|
*
|
|
* @return none.
|
|
*/
|
|
static
|
|
void scic_sds_smp_request_started_await_response_substate_enter(
|
|
SCI_BASE_OBJECT_T *object
|
|
)
|
|
{
|
|
SCIC_SDS_REQUEST_T *this_request = (SCIC_SDS_REQUEST_T *)object;
|
|
|
|
SET_STATE_HANDLER(
|
|
this_request,
|
|
scic_sds_smp_request_started_substate_handler_table,
|
|
SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_RESPONSE
|
|
);
|
|
}
|
|
|
|
/**
|
|
* @brief This method performs the actions required when entering the
|
|
* SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_TC_COMPLETION
|
|
* sub-state. This includes setting the SMP request state handlers for
|
|
* this sub-state.
|
|
*
|
|
* @param[in] object This parameter specifies the request object for which
|
|
* the sub-state change is occurring.
|
|
*
|
|
* @return none.
|
|
*/
|
|
static
|
|
void scic_sds_smp_request_started_await_tc_completion_substate_enter(
|
|
SCI_BASE_OBJECT_T *object
|
|
)
|
|
{
|
|
SCIC_SDS_REQUEST_T *this_request = (SCIC_SDS_REQUEST_T *)object;
|
|
|
|
SET_STATE_HANDLER(
|
|
this_request,
|
|
scic_sds_smp_request_started_substate_handler_table,
|
|
SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_TC_COMPLETION
|
|
);
|
|
}
|
|
|
|
SCI_BASE_STATE_T scic_sds_smp_request_started_substate_table
|
|
[SCIC_SDS_SMP_REQUEST_STARTED_MAX_SUBSTATES] =
|
|
{
|
|
{
|
|
SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_RESPONSE,
|
|
scic_sds_smp_request_started_await_response_substate_enter,
|
|
NULL
|
|
},
|
|
{
|
|
SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_TC_COMPLETION,
|
|
scic_sds_smp_request_started_await_tc_completion_substate_enter,
|
|
NULL
|
|
}
|
|
};
|
|
|
|
|