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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: release/9.1.0/sys/dev/isci/scil/scic_sds_request.c 231689 2012-02-14 15:58:49Z jimharris $"); /** * @file * * @brief This file contains the implementation for the operations on an * SCIC_SDS_IO_REQUEST object. */ #include <dev/isci/scil/intel_sat.h> #include <dev/isci/scil/intel_sata.h> #include <dev/isci/scil/intel_sas.h> #include <dev/isci/scil/sci_util.h> #include <dev/isci/scil/sci_base_request.h> #include <dev/isci/scil/scic_controller.h> #include <dev/isci/scil/scic_io_request.h> #include <dev/isci/scil/scic_remote_device.h> #include <dev/isci/scil/scic_user_callback.h> #include <dev/isci/scil/scic_sds_logger.h> #include <dev/isci/scil/scic_sds_request.h> #include <dev/isci/scil/scic_sds_pci.h> #include <dev/isci/scil/scic_sds_stp_request.h> #include <dev/isci/scil/scic_sds_controller.h> #include <dev/isci/scil/scic_sds_controller_registers.h> #include <dev/isci/scil/scic_sds_remote_device.h> #include <dev/isci/scil/scic_sds_port.h> #include <dev/isci/scil/scic_task_request.h> #include <dev/isci/scil/scu_constants.h> #include <dev/isci/scil/scu_task_context.h> #include <dev/isci/scil/scic_sds_smp_request.h> #include <dev/isci/sci_environment.h> #include <dev/isci/scil/scic_sds_unsolicited_frame_control.h> #include <dev/isci/scil/sci_types.h> #include <dev/isci/scil/scu_completion_codes.h> #include <dev/isci/scil/intel_scsi.h> #if !defined(DISABLE_ATAPI) #include <dev/isci/scil/scic_sds_stp_packet_request.h> #endif /** * @struct SCI_SINGLE_LEVEL_LUN * * @brief this struct decribes the single level LUN structure * as per the SAM 4. */ typedef struct SCI_SINGLE_LEVEL_LUN { U8 bus_id : 6; U8 address_method : 2; U8 lun_number; U8 second_level_lun[2]; U8 third_level_lun[2]; U8 forth_level_lun[2]; } SCI_SINGLE_LEVEL_LUN_T; //**************************************************************************** //* SCIC SDS IO REQUEST CONSTANTS //**************************************************************************** /** * We have no timer requirements for IO requests right now */ #define SCIC_SDS_IO_REQUEST_MINIMUM_TIMER_COUNT (0) #define SCIC_SDS_IO_REQUEST_MAXIMUM_TIMER_COUNT (0) //**************************************************************************** //* SCIC SDS IO REQUEST MACROS //**************************************************************************** /** * This is a helper macro to return the os handle for this request object. */ #define scic_sds_request_get_user_request(request) \ ((request)->user_request) /** * This macro returns the sizeof memory required to store the an SSP IO * request. This does not include the size of the SGL or SCU Task Context * memory.The sizeof(U32) are needed for DWORD alignment of the command IU * and response IU */ #define scic_ssp_io_request_get_object_size() \ ( \ sizeof(SCI_SSP_COMMAND_IU_T) \ + sizeof (U32) \ + sizeof(SCI_SSP_RESPONSE_IU_T) \ + sizeof (U32) \ ) /** * This macro returns the address of the ssp command buffer in the io * request memory */ #define scic_sds_ssp_request_get_command_buffer_unaligned(memory) \ ((SCI_SSP_COMMAND_IU_T *)( \ ((char *)(memory)) + sizeof(SCIC_SDS_REQUEST_T) \ )) /** * This macro aligns the ssp command buffer in DWORD alignment */ #define scic_sds_ssp_request_align_command_buffer(address) \ ((SCI_SSP_COMMAND_IU_T *)( \ (((POINTER_UINT)(address)) + (sizeof(U32) - 1)) \ & ~(sizeof(U32)- 1) \ )) /** * This macro returns the DWORD-aligned ssp command buffer */ #define scic_sds_ssp_request_get_command_buffer(memory) \ ((SCI_SSP_COMMAND_IU_T *) \ ((char *)scic_sds_ssp_request_align_command_buffer( \ (char *) scic_sds_ssp_request_get_command_buffer_unaligned(memory) \ ))) /** * This macro returns the address of the ssp response buffer in the io * request memory */ #define scic_sds_ssp_request_get_response_buffer_unaligned(memory) \ ((SCI_SSP_RESPONSE_IU_T *)( \ ((char *)(scic_sds_ssp_request_get_command_buffer(memory))) \ + sizeof(SCI_SSP_COMMAND_IU_T) \ )) /** * This macro aligns the ssp response buffer in DWORD-aligned fashion */ #define scic_sds_ssp_request_align_response_buffer(memory) \ ((SCI_SSP_RESPONSE_IU_T *)( \ (((POINTER_UINT)(memory)) + (sizeof(U32) - 1)) \ & ~(sizeof(U32)- 1) \ )) /** * This macro returns the DWORD-aligned ssp response buffer */ #define scic_sds_ssp_request_get_response_buffer(memory) \ ((SCI_SSP_RESPONSE_IU_T *) \ ((char *)scic_sds_ssp_request_align_response_buffer ( \ (char *)scic_sds_ssp_request_get_response_buffer_unaligned(memory) \ ))) /** * This macro returns the address of the task context buffer in the io * request memory */ #define scic_sds_ssp_request_get_task_context_buffer_unaligned(memory) \ ((SCU_TASK_CONTEXT_T *)( \ ((char *)(scic_sds_ssp_request_get_response_buffer(memory))) \ + sizeof(SCI_SSP_RESPONSE_IU_T) \ )) /** * This macro returns the aligned task context buffer */ #define scic_sds_ssp_request_get_task_context_buffer(memory) \ ((SCU_TASK_CONTEXT_T *)( \ ((char *)scic_sds_request_align_task_context_buffer( \ (char *)scic_sds_ssp_request_get_task_context_buffer_unaligned(memory)) \ ))) /** * This macro returns the address of the sgl elment pairs in the io request * memory buffer */ #define scic_sds_ssp_request_get_sgl_element_buffer(memory) \ ((SCU_SGL_ELEMENT_PAIR_T *)( \ ((char *)(scic_sds_ssp_request_get_task_context_buffer(memory))) \ + sizeof(SCU_TASK_CONTEXT_T) \ )) #if !defined(DISABLE_TASK_MANAGEMENT) /** * This macro returns the sizeof of memory required to store an SSP Task * request. This does not include the size of the SCU Task Context memory. */ #define scic_ssp_task_request_get_object_size() \ ( \ sizeof(SCI_SSP_TASK_IU_T) \ + sizeof(SCI_SSP_RESPONSE_IU_T) \ ) /** * This macro returns the address of the ssp command buffer in the task * request memory. Yes its the same as the above macro except for the * name. */ #define scic_sds_ssp_task_request_get_command_buffer(memory) \ ((SCI_SSP_TASK_IU_T *)( \ ((char *)(memory)) + sizeof(SCIC_SDS_REQUEST_T) \ )) /** * This macro returns the address of the ssp response buffer in the task * request memory. */ #define scic_sds_ssp_task_request_get_response_buffer(memory) \ ((SCI_SSP_RESPONSE_IU_T *)( \ ((char *)(scic_sds_ssp_task_request_get_command_buffer(memory))) \ + sizeof(SCI_SSP_TASK_IU_T) \ )) /** * This macro returs the task context buffer for the SSP task request. */ #define scic_sds_ssp_task_request_get_task_context_buffer(memory) \ ((SCU_TASK_CONTEXT_T *)( \ ((char *)(scic_sds_ssp_task_request_get_response_buffer(memory))) \ + sizeof(SCI_SSP_RESPONSE_IU_T) \ )) #endif // !defined(DISABLE_TASK_MANAGEMENT) //**************************************************************************** //* SCIC SDS IO REQUEST PRIVATE METHODS //**************************************************************************** #ifdef SCI_LOGGING /** * This method will initialize state transition logging for the task request * object. * * @param[in] this_request This is the request for which to track state * transitions. */ void scic_sds_request_initialize_state_logging( SCIC_SDS_REQUEST_T *this_request ) { sci_base_state_machine_logger_initialize( &this_request->parent.state_machine_logger, &this_request->parent.state_machine, &this_request->parent.parent, scic_cb_logger_log_states, this_request->is_task_management_request ? "SCIC_SDS_IO_REQUEST_T(Task)" : "SCIC_SDS_IO_REQUEST_T(IO)", "base state machine", SCIC_LOG_OBJECT_SMP_IO_REQUEST | SCIC_LOG_OBJECT_STP_IO_REQUEST | SCIC_LOG_OBJECT_SSP_IO_REQUEST ); if (this_request->has_started_substate_machine) { sci_base_state_machine_logger_initialize( &this_request->started_substate_machine_logger, &this_request->started_substate_machine, &this_request->parent.parent, scic_cb_logger_log_states, "SCIC_SDS_IO_REQUEST_T(Task)", "starting substate machine", SCIC_LOG_OBJECT_SMP_IO_REQUEST | SCIC_LOG_OBJECT_STP_IO_REQUEST | SCIC_LOG_OBJECT_SSP_IO_REQUEST ); } } /** * This method will stop the state transition logging for the task request * object. * * @param[in] this_request The task request object on which to stop state * transition logging. */ void scic_sds_request_deinitialize_state_logging( SCIC_SDS_REQUEST_T *this_request ) { sci_base_state_machine_logger_deinitialize( &this_request->parent.state_machine_logger, &this_request->parent.state_machine ); if (this_request->has_started_substate_machine) { sci_base_state_machine_logger_deinitialize( &this_request->started_substate_machine_logger, &this_request->started_substate_machine ); } } #endif // SCI_LOGGING /** * This method returns the size required to store an SSP IO request object. * * @return U32 */ static U32 scic_sds_ssp_request_get_object_size(void) { return sizeof(SCIC_SDS_REQUEST_T) + scic_ssp_io_request_get_object_size() + sizeof(SCU_TASK_CONTEXT_T) + CACHE_LINE_SIZE + sizeof(SCU_SGL_ELEMENT_PAIR_T) * SCU_MAX_SGL_ELEMENT_PAIRS; } /** * @brief This method returns the sgl element pair for the specificed * sgl_pair index. * * @param[in] this_request This parameter specifies the IO request for which * to retrieve the Scatter-Gather List element pair. * @param[in] sgl_pair_index This parameter specifies the index into the SGL * element pair to be retrieved. * * @return This method returns a pointer to an SCU_SGL_ELEMENT_PAIR. */ SCU_SGL_ELEMENT_PAIR_T *scic_sds_request_get_sgl_element_pair( SCIC_SDS_REQUEST_T *this_request, U32 sgl_pair_index ) { SCU_TASK_CONTEXT_T *task_context; task_context = (SCU_TASK_CONTEXT_T *)this_request->task_context_buffer; if (sgl_pair_index == 0) { return &task_context->sgl_pair_ab; } else if (sgl_pair_index == 1) { return &task_context->sgl_pair_cd; } return &this_request->sgl_element_pair_buffer[sgl_pair_index - 2]; } /** * @brief This function will build the SGL list for an IO request. * * @param[in] this_request This parameter specifies the IO request for which * to build the Scatter-Gather List. * * @return none */ void scic_sds_request_build_sgl( SCIC_SDS_REQUEST_T *this_request ) { void *os_sge; void *os_handle; SCI_PHYSICAL_ADDRESS physical_address; U32 sgl_pair_index = 0; SCU_SGL_ELEMENT_PAIR_T *scu_sgl_list = NULL; SCU_SGL_ELEMENT_PAIR_T *previous_pair = NULL; os_handle = scic_sds_request_get_user_request(this_request); scic_cb_io_request_get_next_sge(os_handle, NULL, &os_sge); while (os_sge != NULL) { scu_sgl_list = scic_sds_request_get_sgl_element_pair(this_request, sgl_pair_index); SCU_SGL_COPY(os_handle, scu_sgl_list->A, os_sge); scic_cb_io_request_get_next_sge(os_handle, os_sge, &os_sge); if (os_sge != NULL) { SCU_SGL_COPY(os_handle, scu_sgl_list->B, os_sge); scic_cb_io_request_get_next_sge(os_handle, os_sge, &os_sge); } else { SCU_SGL_ZERO(scu_sgl_list->B); } if (previous_pair != NULL) { scic_cb_io_request_get_physical_address( scic_sds_request_get_controller(this_request), this_request, scu_sgl_list, &physical_address ); previous_pair->next_pair_upper = sci_cb_physical_address_upper(physical_address); previous_pair->next_pair_lower = sci_cb_physical_address_lower(physical_address); } previous_pair = scu_sgl_list; sgl_pair_index++; } if (scu_sgl_list != NULL) { scu_sgl_list->next_pair_upper = 0; scu_sgl_list->next_pair_lower = 0; } } /** * @brief This method initializes common portions of the io request object. * This includes construction of the SCI_BASE_REQUEST_T parent. * * @param[in] the_controller This parameter specifies the controller for which * the request is being constructed. * @param[in] the_target This parameter specifies the remote device for which * the request is being constructed. * @param[in] io_tag This parameter specifies the IO tag to be utilized for * this request. This parameter can be set to * SCI_CONTROLLER_INVALID_IO_TAG. * @param[in] user_io_request_object This parameter specifies the user * request object for which the request is being constructed. * @param[in] this_request This parameter specifies the request being * constructed. * * @return none */ static void scic_sds_general_request_construct( SCIC_SDS_CONTROLLER_T * the_controller, SCIC_SDS_REMOTE_DEVICE_T * the_target, U16 io_tag, void * user_io_request_object, SCIC_SDS_REQUEST_T * this_request ) { sci_base_request_construct( &this_request->parent, sci_base_object_get_logger(the_controller), scic_sds_request_state_table ); this_request->io_tag = io_tag; this_request->user_request = user_io_request_object; this_request->owning_controller = the_controller; this_request->target_device = the_target; this_request->has_started_substate_machine = FALSE; this_request->protocol = SCIC_NO_PROTOCOL; this_request->sat_protocol = 0xFF; this_request->saved_rx_frame_index = SCU_INVALID_FRAME_INDEX; this_request->device_sequence = scic_sds_remote_device_get_sequence(the_target); this_request->sci_status = SCI_SUCCESS; this_request->scu_status = 0; this_request->post_context = 0xFFFFFFFF; this_request->is_task_management_request = FALSE; if (io_tag == SCI_CONTROLLER_INVALID_IO_TAG) { this_request->was_tag_assigned_by_user = FALSE; this_request->task_context_buffer = NULL; } else { this_request->was_tag_assigned_by_user = TRUE; this_request->task_context_buffer = scic_sds_controller_get_task_context_buffer( this_request->owning_controller, io_tag); } } /** * @brief This method build the remainder of the IO request object. * * @pre The scic_sds_general_request_construct() must be called before this * call is valid. * * @param[in] this_request This parameter specifies the request object being * constructed. * * @return none */ void scic_sds_ssp_io_request_assign_buffers( SCIC_SDS_REQUEST_T *this_request ) { this_request->command_buffer = scic_sds_ssp_request_get_command_buffer(this_request); this_request->response_buffer = scic_sds_ssp_request_get_response_buffer(this_request); this_request->sgl_element_pair_buffer = scic_sds_ssp_request_get_sgl_element_buffer(this_request); this_request->sgl_element_pair_buffer = scic_sds_request_align_sgl_element_buffer(this_request->sgl_element_pair_buffer); if (this_request->was_tag_assigned_by_user == FALSE) { this_request->task_context_buffer = scic_sds_ssp_request_get_task_context_buffer(this_request); } } /** * @brief This method constructs the SSP Command IU data for this io * request object. * * @param[in] this_request This parameter specifies the request object for * which the SSP command information unit is being built. * * @return none */ static void scic_sds_io_request_build_ssp_command_iu( SCIC_SDS_REQUEST_T *this_request ) { SCI_SINGLE_LEVEL_LUN_T lun; SCI_SSP_COMMAND_IU_T *command_frame; void *os_handle; U32 cdb_length; U32 *cdb_buffer; command_frame = (SCI_SSP_COMMAND_IU_T *)this_request->command_buffer; os_handle = scic_sds_request_get_user_request(this_request); ((U32 *)&lun)[0] = 0; ((U32 *)&lun)[1] = 0; lun.lun_number = scic_cb_ssp_io_request_get_lun(os_handle) &0xff; /// @todo Is it ok to leave junk at the end of the cdb buffer? scic_word_copy_with_swap( (U32 *)command_frame->lun, (U32 *)&lun, sizeof(lun)); ((U32 *)command_frame)[2] = 0; cdb_length = scic_cb_ssp_io_request_get_cdb_length(os_handle); cdb_buffer = (U32 *)scic_cb_ssp_io_request_get_cdb_address(os_handle); if (cdb_length > 16) { command_frame->additional_cdb_length = cdb_length - 16; } /// @todo Is it ok to leave junk at the end of the cdb buffer? scic_word_copy_with_swap( (U32 *)(&command_frame->cdb), (U32 *)(cdb_buffer), (cdb_length + 3) / sizeof(U32) ); command_frame->enable_first_burst = 0; command_frame->task_priority = scic_cb_ssp_io_request_get_command_priority(os_handle); command_frame->task_attribute = scic_cb_ssp_io_request_get_task_attribute(os_handle); } #if !defined(DISABLE_TASK_MANAGEMENT) /** * @brief This method constructs the SSP Task IU data for this io request * object. * * @param[in] this_request * * @return none */ static void scic_sds_task_request_build_ssp_task_iu( SCIC_SDS_REQUEST_T *this_request ) { SCI_SSP_TASK_IU_T *command_frame; void *os_handle; command_frame = (SCI_SSP_TASK_IU_T *)this_request->command_buffer; os_handle = scic_sds_request_get_user_request(this_request); command_frame->lun_upper = 0; command_frame->lun_lower = scic_cb_ssp_task_request_get_lun(os_handle); ((U32 *)command_frame)[2] = 0; command_frame->task_function = scic_cb_ssp_task_request_get_function(os_handle); command_frame->task_tag = scic_cb_ssp_task_request_get_io_tag_to_manage(os_handle); } #endif // !defined(DISABLE_TASK_MANAGEMENT) /** * @brief This method is will fill in the SCU Task Context for any type of * SSP request. * * @param[in] this_request * @param[in] task_context * * @return none */ static void scu_ssp_reqeust_construct_task_context( SCIC_SDS_REQUEST_T * this_request, SCU_TASK_CONTEXT_T * task_context ) { SCI_PHYSICAL_ADDRESS physical_address; SCIC_SDS_CONTROLLER_T *owning_controller; SCIC_SDS_REMOTE_DEVICE_T *target_device; SCIC_SDS_PORT_T *target_port; owning_controller = scic_sds_request_get_controller(this_request); target_device = scic_sds_request_get_device(this_request); target_port = scic_sds_request_get_port(this_request); // Fill in the TC with the its required data task_context->abort = 0; task_context->priority = 0; task_context->initiator_request = 1; task_context->connection_rate = scic_remote_device_get_connection_rate(target_device); task_context->protocol_engine_index = scic_sds_controller_get_protocol_engine_group(owning_controller); task_context->logical_port_index = scic_sds_port_get_index(target_port); task_context->protocol_type = SCU_TASK_CONTEXT_PROTOCOL_SSP; task_context->valid = SCU_TASK_CONTEXT_VALID; task_context->context_type = SCU_TASK_CONTEXT_TYPE; task_context->remote_node_index = scic_sds_remote_device_get_index(this_request->target_device); task_context->command_code = 0; task_context->link_layer_control = 0; task_context->do_not_dma_ssp_good_response = 1; task_context->strict_ordering = 0; task_context->control_frame = 0; task_context->timeout_enable = 0; task_context->block_guard_enable = 0; task_context->address_modifier = 0; //task_context->type.ssp.tag = this_request->io_tag; task_context->task_phase = 0x01; if (this_request->was_tag_assigned_by_user) { // 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 ) | scic_sds_io_tag_get_index(this_request->io_tag) ); } else { // 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 scic_cb_io_request_get_physical_address( scic_sds_request_get_controller(this_request), this_request, this_request->command_buffer, &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); // Copy the physical address for the response buffer to the SCU Task Context scic_cb_io_request_get_physical_address( scic_sds_request_get_controller(this_request), this_request, this_request->response_buffer, &physical_address ); task_context->response_iu_upper = sci_cb_physical_address_upper(physical_address); task_context->response_iu_lower = sci_cb_physical_address_lower(physical_address); } /** * @brief This method is will fill in the SCU Task Context for a SSP IO * request. * * @param[in] this_request * * @return none */ static void scu_ssp_io_request_construct_task_context( SCIC_SDS_REQUEST_T *this_request, SCI_IO_REQUEST_DATA_DIRECTION data_direction, U32 transfer_length_bytes ) { SCU_TASK_CONTEXT_T *task_context; task_context = scic_sds_request_get_task_context(this_request); scu_ssp_reqeust_construct_task_context(this_request, task_context); task_context->ssp_command_iu_length = sizeof(SCI_SSP_COMMAND_IU_T) / sizeof(U32); task_context->type.ssp.frame_type = SCI_SAS_COMMAND_FRAME; switch (data_direction) { case SCI_IO_REQUEST_DATA_IN: case SCI_IO_REQUEST_NO_DATA: task_context->task_type = SCU_TASK_TYPE_IOREAD; break; case SCI_IO_REQUEST_DATA_OUT: task_context->task_type = SCU_TASK_TYPE_IOWRITE; break; } task_context->transfer_length_bytes = transfer_length_bytes; if (task_context->transfer_length_bytes > 0) { scic_sds_request_build_sgl(this_request); } } #if !defined(DISABLE_TASK_MANAGEMENT) /** * @brief This method will fill in the remainder of the io request object * for SSP Task requests. * * @param[in] this_request * * @return none */ void scic_sds_ssp_task_request_assign_buffers( SCIC_SDS_REQUEST_T *this_request ) { // Assign all of the buffer pointers this_request->command_buffer = scic_sds_ssp_task_request_get_command_buffer(this_request); this_request->response_buffer = scic_sds_ssp_task_request_get_response_buffer(this_request); this_request->sgl_element_pair_buffer = NULL; if (this_request->was_tag_assigned_by_user == FALSE) { this_request->task_context_buffer = scic_sds_ssp_task_request_get_task_context_buffer(this_request); this_request->task_context_buffer = scic_sds_request_align_task_context_buffer(this_request->task_context_buffer); } } /** * @brief This method will fill in the SCU Task Context for a SSP Task * request. The following important settings are utilized: * -# priority == SCU_TASK_PRIORITY_HIGH. This ensures that the * task request is issued ahead of other task destined for the * same Remote Node. * -# task_type == SCU_TASK_TYPE_IOREAD. This simply indicates * that a normal request type (i.e. non-raw frame) is being * utilized to perform task management. * -# control_frame == 1. This ensures that the proper endianess * is set so that the bytes are transmitted in the right order * for a task frame. * * @param[in] this_request This parameter specifies the task request object * being constructed. * * @return none */ static void scu_ssp_task_request_construct_task_context( SCIC_SDS_REQUEST_T *this_request ) { SCU_TASK_CONTEXT_T *task_context; task_context = scic_sds_request_get_task_context(this_request); scu_ssp_reqeust_construct_task_context(this_request, task_context); task_context->control_frame = 1; task_context->priority = SCU_TASK_PRIORITY_HIGH; task_context->task_type = SCU_TASK_TYPE_RAW_FRAME; task_context->transfer_length_bytes = 0; task_context->type.ssp.frame_type = SCI_SAS_TASK_FRAME; task_context->ssp_command_iu_length = sizeof(SCI_SSP_TASK_IU_T) / sizeof(U32); } #endif // !defined(DISABLE_TASK_MANAGEMENT) #if !defined(DISABLE_PASS_THROUGH) /** * @brief This method constructs the SSP Command IU data for this * ssp passthrough comand request object. * * @param[in] this_request This parameter specifies the request object for * which the SSP command information unit is being built. * * @return SCI_STATUS, returns invalid parameter is cdb > 16 */ static SCI_STATUS scic_sds_io_request_build_ssp_command_iu_pass_through( SCIC_SDS_REQUEST_T *this_request, SCIC_SSP_PASSTHRU_REQUEST_CALLBACKS_T *ssp_passthru_cb ) { SCI_SSP_COMMAND_IU_T *command_frame; U32 cdb_length = 0, additional_cdb_length = 0; U8 *cdb_buffer, *additional_cdb_buffer; U8 *scsi_lun; SCI_STATUS sci_status = SCI_SUCCESS; SCI_SINGLE_LEVEL_LUN_T lun; command_frame = (SCI_SSP_COMMAND_IU_T *)this_request->command_buffer; //get the lun ssp_passthru_cb->scic_cb_ssp_passthru_get_lun ( this_request, &scsi_lun ); memset(&lun, 0, sizeof(lun)); lun.lun_number = *scsi_lun; scic_word_copy_with_swap( (U32 *)command_frame->lun, (U32 *)&lun, sizeof(lun)); ((U32 *)command_frame)[2] = 0; ssp_passthru_cb->scic_cb_ssp_passthru_get_cdb( this_request, &cdb_length, &cdb_buffer, &additional_cdb_length, &additional_cdb_buffer ); command_frame->additional_cdb_length = additional_cdb_length; // ----------- TODO ///todo: what to do with additional cdb length and buffer as the current command buffer is // 16 bytes in intel_sas.h // ??? see the SAS command IU if (additional_cdb_length > 0) { return SCI_FAILURE_INVALID_PARAMETER_VALUE; } /// @todo Is it ok to leave junk at the end of the cdb buffer? scic_word_copy_with_swap( (U32 *)(&command_frame->cdb), (U32 *)(cdb_buffer), (cdb_length + 3) / sizeof(U32) ); /////-------- End fo TODO command_frame->enable_first_burst = 0; command_frame->task_priority = 0; //todo: check with Richard ???? //get the task attribute command_frame->task_attribute = ssp_passthru_cb->scic_cb_ssp_passthru_get_task_attribute ( this_request ); return sci_status; } #endif // !defined(DISABLE_PASS_THROUGH) //**************************************************************************** //* SCIC Interface Implementation //**************************************************************************** #if !defined(DISABLE_TASK_MANAGEMENT) /** * This method returns the size required to store an SSP task request object. * * @return U32 */ static U32 scic_sds_ssp_task_request_get_object_size(void) { return sizeof(SCIC_SDS_REQUEST_T) + scic_ssp_task_request_get_object_size() + sizeof(SCU_TASK_CONTEXT_T) + CACHE_LINE_SIZE; } U32 scic_task_request_get_object_size(void) { U32 ssp_task_request_size; U32 stp_task_request_size; ssp_task_request_size = scic_sds_ssp_task_request_get_object_size(); stp_task_request_size = scic_sds_stp_task_request_get_object_size(); return MAX(ssp_task_request_size, stp_task_request_size); } #endif // !defined(DISABLE_TASK_MANAGEMENT) // --------------------------------------------------------------------------- U32 scic_io_request_get_object_size(void) { U32 ssp_request_size; U32 stp_request_size; U32 smp_request_size; ssp_request_size = scic_sds_ssp_request_get_object_size(); stp_request_size = scic_sds_stp_request_get_object_size(); smp_request_size = scic_sds_smp_request_get_object_size(); return MAX(ssp_request_size, MAX(stp_request_size, smp_request_size)); } // --------------------------------------------------------------------------- SCIC_TRANSPORT_PROTOCOL scic_io_request_get_protocol( SCI_IO_REQUEST_HANDLE_T scic_io_request ) { SCIC_SDS_REQUEST_T * this_request = (SCIC_SDS_REQUEST_T * )scic_io_request; return this_request->protocol; } // --------------------------------------------------------------------------- U32 scic_sds_request_get_min_timer_count(void) { return SCIC_SDS_IO_REQUEST_MINIMUM_TIMER_COUNT; } // --------------------------------------------------------------------------- U32 scic_sds_request_get_max_timer_count(void) { return SCIC_SDS_IO_REQUEST_MAXIMUM_TIMER_COUNT; } // --------------------------------------------------------------------------- SCI_STATUS scic_io_request_construct( SCI_CONTROLLER_HANDLE_T scic_controller, SCI_REMOTE_DEVICE_HANDLE_T scic_remote_device, U16 io_tag, void * user_io_request_object, void * scic_io_request_memory, SCI_IO_REQUEST_HANDLE_T * new_scic_io_request_handle ) { SCI_STATUS status = SCI_SUCCESS; SCIC_SDS_REQUEST_T * this_request; SMP_DISCOVER_RESPONSE_PROTOCOLS_T device_protocol; this_request = (SCIC_SDS_REQUEST_T * )scic_io_request_memory; SCIC_LOG_TRACE(( sci_base_object_get_logger(scic_controller), (SCIC_LOG_OBJECT_SSP_IO_REQUEST |SCIC_LOG_OBJECT_SMP_IO_REQUEST |SCIC_LOG_OBJECT_STP_IO_REQUEST), "scic_io_request_construct(0x%x, 0x%x, 0x02x, 0x%x, 0x%x, 0x%x) enter\n", scic_controller, scic_remote_device, io_tag, user_io_request_object, this_request, new_scic_io_request_handle )); // Build the common part of the request scic_sds_general_request_construct( (SCIC_SDS_CONTROLLER_T *)scic_controller, (SCIC_SDS_REMOTE_DEVICE_T *)scic_remote_device, io_tag, user_io_request_object, this_request ); if ( scic_sds_remote_device_get_index((SCIC_SDS_REMOTE_DEVICE_T *)scic_remote_device) == SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX ) { return SCI_FAILURE_INVALID_REMOTE_DEVICE; } scic_remote_device_get_protocols(scic_remote_device, &device_protocol); if (device_protocol.u.bits.attached_ssp_target) { scic_sds_ssp_io_request_assign_buffers(this_request); } else if (device_protocol.u.bits.attached_stp_target) { scic_sds_stp_request_assign_buffers(this_request); memset(this_request->command_buffer, 0, sizeof(SATA_FIS_REG_H2D_T)); } else if (device_protocol.u.bits.attached_smp_target) { scic_sds_smp_request_assign_buffers(this_request); memset(this_request->command_buffer, 0, sizeof(SMP_REQUEST_T)); } else { status = SCI_FAILURE_UNSUPPORTED_PROTOCOL; } if (status == SCI_SUCCESS) { memset( this_request->task_context_buffer, 0, SCI_FIELD_OFFSET(SCU_TASK_CONTEXT_T, sgl_pair_ab) ); *new_scic_io_request_handle = scic_io_request_memory; } return status; } // --------------------------------------------------------------------------- #if !defined(DISABLE_TASK_MANAGEMENT) SCI_STATUS scic_task_request_construct( SCI_CONTROLLER_HANDLE_T controller, SCI_REMOTE_DEVICE_HANDLE_T remote_device, U16 io_tag, void *user_io_request_object, void *scic_task_request_memory, SCI_TASK_REQUEST_HANDLE_T *new_scic_task_request_handle ) { SCI_STATUS status = SCI_SUCCESS; SCIC_SDS_REQUEST_T * this_request = (SCIC_SDS_REQUEST_T *) scic_task_request_memory; SMP_DISCOVER_RESPONSE_PROTOCOLS_T device_protocol; SCIC_LOG_TRACE(( sci_base_object_get_logger(controller), (SCIC_LOG_OBJECT_SSP_IO_REQUEST |SCIC_LOG_OBJECT_SMP_IO_REQUEST |SCIC_LOG_OBJECT_STP_IO_REQUEST), "scic_task_request_construct(0x%x, 0x%x, 0x02x, 0x%x, 0x%x, 0x%x) enter\n", controller, remote_device, io_tag, user_io_request_object, scic_task_request_memory, new_scic_task_request_handle )); // Build the common part of the request scic_sds_general_request_construct( (SCIC_SDS_CONTROLLER_T *)controller, (SCIC_SDS_REMOTE_DEVICE_T *)remote_device, io_tag, user_io_request_object, this_request ); scic_remote_device_get_protocols(remote_device, &device_protocol); if (device_protocol.u.bits.attached_ssp_target) { scic_sds_ssp_task_request_assign_buffers(this_request); this_request->has_started_substate_machine = TRUE; // Construct the started sub-state machine. sci_base_state_machine_construct( &this_request->started_substate_machine, &this_request->parent.parent, scic_sds_io_request_started_task_mgmt_substate_table, SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_COMPLETION ); } else if (device_protocol.u.bits.attached_stp_target) { scic_sds_stp_request_assign_buffers(this_request); } else { status = SCI_FAILURE_UNSUPPORTED_PROTOCOL; } if (status == SCI_SUCCESS) { this_request->is_task_management_request = TRUE; memset(this_request->task_context_buffer, 0x00, sizeof(SCU_TASK_CONTEXT_T)); *new_scic_task_request_handle = scic_task_request_memory; } return status; } #endif // !defined(DISABLE_TASK_MANAGEMENT) // --------------------------------------------------------------------------- SCI_STATUS scic_io_request_construct_basic_ssp( SCI_IO_REQUEST_HANDLE_T scic_io_request ) { void *os_handle; SCIC_SDS_REQUEST_T *this_request; this_request = (SCIC_SDS_REQUEST_T *)scic_io_request; SCIC_LOG_TRACE(( sci_base_object_get_logger(this_request), SCIC_LOG_OBJECT_SSP_IO_REQUEST, "scic_io_request_construct_basic_ssp(0x%x) enter\n", this_request )); this_request->protocol = SCIC_SSP_PROTOCOL; os_handle = scic_sds_request_get_user_request(this_request); scu_ssp_io_request_construct_task_context( this_request, scic_cb_io_request_get_data_direction(os_handle), scic_cb_io_request_get_transfer_length(os_handle) ); scic_sds_io_request_build_ssp_command_iu(this_request); scic_sds_request_initialize_state_logging(this_request); sci_base_state_machine_change_state( &this_request->parent.state_machine, SCI_BASE_REQUEST_STATE_CONSTRUCTED ); return SCI_SUCCESS; } // --------------------------------------------------------------------------- #if !defined(DISABLE_TASK_MANAGEMENT) SCI_STATUS scic_task_request_construct_ssp( SCI_TASK_REQUEST_HANDLE_T scic_task_request ) { SCIC_SDS_REQUEST_T *this_request = (SCIC_SDS_REQUEST_T *) scic_task_request; SCIC_LOG_TRACE(( sci_base_object_get_logger(this_request), SCIC_LOG_OBJECT_SSP_IO_REQUEST, "scic_task_request_construct_ssp(0x%x) enter\n", this_request )); // Construct the SSP Task SCU Task Context scu_ssp_task_request_construct_task_context(this_request); // Fill in the SSP Task IU scic_sds_task_request_build_ssp_task_iu(this_request); scic_sds_request_initialize_state_logging(this_request); sci_base_state_machine_change_state( &this_request->parent.state_machine, SCI_BASE_REQUEST_STATE_CONSTRUCTED ); return SCI_SUCCESS; } #endif // !defined(DISABLE_TASK_MANAGEMENT) // --------------------------------------------------------------------------- SCI_STATUS scic_io_request_construct_advanced_ssp( SCI_IO_REQUEST_HANDLE_T scic_io_request, SCIC_IO_SSP_PARAMETERS_T * io_parameters ) { SCIC_LOG_TRACE(( sci_base_object_get_logger(scic_io_request), SCIC_LOG_OBJECT_SSP_IO_REQUEST, "scic_io_request_construct_advanced_ssp(0x%x, 0x%x) enter\n", io_parameters, scic_io_request )); /// @todo Implement after 1.1 return SCI_FAILURE; } // --------------------------------------------------------------------------- #if !defined(DISABLE_PASS_THROUGH) SCI_STATUS scic_io_request_construct_ssp_pass_through ( void * scic_io_request, SCIC_SSP_PASSTHRU_REQUEST_CALLBACKS_T *ssp_passthru_cb ) { SCI_STATUS status = SCI_SUCCESS; SCIC_SDS_REQUEST_T * this_request; this_request = (SCIC_SDS_REQUEST_T * )scic_io_request; SCIC_LOG_TRACE(( sci_base_object_get_logger(scic_io_request), SCIC_LOG_OBJECT_STP_IO_REQUEST, "scic_io_request_construct_ssp_pass_through(0x%x) enter\n", scic_io_request )); //build the task context from the pass through buffer scu_ssp_io_request_construct_task_context( this_request, ssp_passthru_cb->common_callbacks.scic_cb_passthru_get_data_direction (this_request), ssp_passthru_cb->common_callbacks.scic_cb_passthru_get_transfer_length(this_request) ); //build the ssp command iu from the pass through buffer status = scic_sds_io_request_build_ssp_command_iu_pass_through ( this_request, ssp_passthru_cb ); if (status != SCI_SUCCESS) { return status; } /* initialize the logging */ scic_sds_request_initialize_state_logging(this_request); sci_base_state_machine_change_state( &this_request->parent.state_machine, SCI_BASE_REQUEST_STATE_CONSTRUCTED ); return status; } #endif // !defined(DISABLE_PASS_THROUGH) // --------------------------------------------------------------------------- #if !defined(DISABLE_TASK_MANAGEMENT) SCI_STATUS scic_task_request_construct_sata( SCI_TASK_REQUEST_HANDLE_T scic_task_request ) { SCI_STATUS status; SCIC_SDS_REQUEST_T * this_request; U8 sat_protocol; this_request = (SCIC_SDS_REQUEST_T *)scic_task_request; SCIC_LOG_TRACE(( sci_base_object_get_logger(this_request), SCIC_LOG_OBJECT_STP_IO_REQUEST, "scic_task_request_construct_sata(0x%x) enter\n", this_request )); sat_protocol = scic_cb_request_get_sat_protocol(this_request->user_request); this_request->sat_protocol = sat_protocol; switch (sat_protocol) { case SAT_PROTOCOL_ATA_HARD_RESET: case SAT_PROTOCOL_SOFT_RESET: status = scic_sds_stp_soft_reset_request_construct(this_request); break; case SAT_PROTOCOL_PIO_DATA_IN: status = scic_sds_stp_pio_request_construct(this_request, sat_protocol, FALSE); break; default: SCIC_LOG_ERROR(( sci_base_object_get_logger(this_request), SCIC_LOG_OBJECT_STP_IO_REQUEST, "SCIC IO Request 0x%x received un-handled SAT Protocl %d.\n", this_request, sat_protocol )); status = SCI_FAILURE; break; } if (status == SCI_SUCCESS) { scic_sds_request_initialize_state_logging(this_request); sci_base_state_machine_change_state( &this_request->parent.state_machine, SCI_BASE_REQUEST_STATE_CONSTRUCTED ); } return status; } #endif // !defined(DISABLE_TASK_MANAGEMENT) // --------------------------------------------------------------------------- #if !defined(DISABLE_PASS_THROUGH) SCI_STATUS scic_io_request_construct_sata_pass_through( SCI_IO_REQUEST_HANDLE_T scic_io_request, SCIC_STP_PASSTHRU_REQUEST_CALLBACKS_T *passthru_cb ) { SCI_STATUS status = SCI_SUCCESS; SCIC_SDS_REQUEST_T * this_request; U8 sat_protocol; U8 * reg_fis; U32 transfer_length; SCI_IO_REQUEST_DATA_DIRECTION data_direction; this_request = (SCIC_SDS_REQUEST_T * )scic_io_request; SCIC_LOG_TRACE(( sci_base_object_get_logger(scic_io_request), SCIC_LOG_OBJECT_STP_IO_REQUEST, "scic_io_request_construct_sata_pass_through(0x%x) enter\n", scic_io_request )); passthru_cb->scic_cb_stp_passthru_get_register_fis(this_request, ®_fis); if (reg_fis == NULL) { status = SCI_FAILURE_INVALID_PARAMETER_VALUE; } if (status == SCI_SUCCESS) { //copy the H2D Reg fis blindly from the request to the SCU command buffer memcpy ((U8 *)this_request->command_buffer, (U8 *)reg_fis, sizeof(SATA_FIS_REG_H2D_T)); //continue to create the request sat_protocol = passthru_cb->scic_cb_stp_passthru_get_protocol(this_request); transfer_length = passthru_cb->common_callbacks.scic_cb_passthru_get_transfer_length(this_request); data_direction = passthru_cb->common_callbacks.scic_cb_passthru_get_data_direction(this_request); status = scic_sds_io_request_construct_sata( this_request, sat_protocol, transfer_length, data_direction, TRUE, TRUE ); this_request->protocol = SCIC_STP_PROTOCOL; } return status; } #endif // !defined(DISABLE_PASS_THROUGH) // --------------------------------------------------------------------------- U16 scic_io_request_get_io_tag( SCI_IO_REQUEST_HANDLE_T scic_io_request ) { SCIC_SDS_REQUEST_T *this_request; this_request = (SCIC_SDS_REQUEST_T *)scic_io_request; SCIC_LOG_TRACE(( sci_base_object_get_logger(scic_io_request), SCIC_LOG_OBJECT_SMP_IO_REQUEST, "scic_io_request_get_io_tag(0x%x) enter\n", scic_io_request )); return this_request->io_tag; } // --------------------------------------------------------------------------- U32 scic_request_get_controller_status( SCI_IO_REQUEST_HANDLE_T io_request ) { SCIC_SDS_REQUEST_T * this_request = (SCIC_SDS_REQUEST_T*)io_request; return this_request->scu_status; } U32 scic_request_get_sci_status( SCI_IO_REQUEST_HANDLE_T io_request ) { SCIC_SDS_REQUEST_T * this_request = (SCIC_SDS_REQUEST_T*)io_request; return this_request->sci_status; } // --------------------------------------------------------------------------- void * scic_io_request_get_rx_frame( SCI_IO_REQUEST_HANDLE_T scic_io_request, U32 offset ) { void * frame_buffer = NULL; SCIC_SDS_REQUEST_T * this_request = (SCIC_SDS_REQUEST_T *)scic_io_request; ASSERT(offset < SCU_UNSOLICITED_FRAME_BUFFER_SIZE); if (this_request->saved_rx_frame_index != SCU_INVALID_FRAME_INDEX) { scic_sds_unsolicited_frame_control_get_buffer( &(this_request->owning_controller->uf_control), this_request->saved_rx_frame_index, &frame_buffer ); } return frame_buffer; } void * scic_io_request_get_command_iu_address( SCI_IO_REQUEST_HANDLE_T scic_io_request ) { SCIC_SDS_REQUEST_T * this_request = (SCIC_SDS_REQUEST_T *)scic_io_request; return this_request->command_buffer; } // --------------------------------------------------------------------------- void * scic_io_request_get_response_iu_address( SCI_IO_REQUEST_HANDLE_T scic_io_request ) { SCIC_SDS_REQUEST_T * this_request = (SCIC_SDS_REQUEST_T *)scic_io_request; return this_request->response_buffer; } // --------------------------------------------------------------------------- #define SCU_TASK_CONTEXT_SRAM 0x200000 U32 scic_io_request_get_number_of_bytes_transferred ( SCI_IO_REQUEST_HANDLE_T scic_io_request ) { U32 ret_val = 0; SCIC_SDS_REQUEST_T * scic_sds_request; scic_sds_request = (SCIC_SDS_REQUEST_T *) scic_io_request; if ( SMU_AMR_READ (scic_sds_request->owning_controller) == 0) { //get the bytes of data from the Address == BAR1 + 20002Ch + (256*TCi) where // BAR1 is the scu_registers // 0x20002C = 0x200000 + 0x2c // = start of task context SRAM + offset of (type.ssp.data_offset) // TCi is the io_tag of SCIC_SDS_REQUEST ret_val = scic_sds_pci_read_scu_dword( scic_sds_request->owning_controller, ( (U8 *) scic_sds_request->owning_controller->scu_registers + ( SCU_TASK_CONTEXT_SRAM + SCI_FIELD_OFFSET(SCU_TASK_CONTEXT_T, type.ssp.data_offset) ) + ( ( sizeof (SCU_TASK_CONTEXT_T) ) * scic_sds_io_tag_get_index (scic_sds_request->io_tag)) ) ); } return ret_val; } //**************************************************************************** //* SCIC SDS Interface Implementation //**************************************************************************** /** * This method invokes the base state start request handler for the * SCIC_SDS_IO_REQUEST_T object. * * @param[in] this_request The SCIC_SDS_IO_REQUEST_T object for which the * start operation is to be executed. * * @return SCI_STATUS */ SCI_STATUS scic_sds_request_start( SCIC_SDS_REQUEST_T *this_request ) { if ( this_request->device_sequence == scic_sds_remote_device_get_sequence(this_request->target_device) ) { return this_request->state_handlers->parent.start_handler( &this_request->parent ); } return SCI_FAILURE; } /** * This method invokes the base state terminate request handber for the * SCIC_SDS_IO_REQUEST_T object. * * @param[in] this_request The SCIC_SDS_IO_REQUEST_T object for which the * start operation is to be executed. * * @return SCI_STATUS */ SCI_STATUS scic_sds_io_request_terminate( SCIC_SDS_REQUEST_T *this_request ) { return this_request->state_handlers->parent.abort_handler( &this_request->parent); } /** * This method invokes the base state request completion handler for the * SCIC_SDS_IO_REQUEST_T object. * * @param[in] this_request The SCIC_SDS_IO_REQUEST_T object for which the * start operation is to be executed. * * @return SCI_STATUS */ SCI_STATUS scic_sds_io_request_complete( SCIC_SDS_REQUEST_T *this_request ) { return this_request->state_handlers->parent.complete_handler( &this_request->parent); } /** * This method invokes the core state handler for the SCIC_SDS_IO_REQUEST_T * object. * * @param[in] this_request The SCIC_SDS_IO_REQUEST_T object for which the * start operation is to be executed. * @param[in] event_code The event code returned by the hardware for the task * reqeust. * * @return SCI_STATUS */ SCI_STATUS scic_sds_io_request_event_handler( SCIC_SDS_REQUEST_T * this_request, U32 event_code ) { return this_request->state_handlers->event_handler(this_request, event_code); } /** * This method invokes the core state frame handler for the * SCIC_SDS_IO_REQUEST_T object. * * @param[in] this_request The SCIC_SDS_IO_REQUEST_T object for which the * start operation is to be executed. * @param[in] frame_index The frame index returned by the hardware for the * reqeust object. * * @return SCI_STATUS */ SCI_STATUS scic_sds_io_request_frame_handler( SCIC_SDS_REQUEST_T * this_request, U32 frame_index ) { return this_request->state_handlers->frame_handler(this_request, frame_index); } /** * This method invokes the core state task complete handler for the * SCIC_SDS_IO_REQUEST_T object. * * @param[in] this_request The SCIC_SDS_IO_REQUEST_T object for which the task * start operation is to be executed. * * @return SCI_STATUS */ SCI_STATUS scic_sds_task_request_complete( SCIC_SDS_REQUEST_T *this_request ) { return this_request->state_handlers->parent.complete_handler(&this_request->parent); } //**************************************************************************** //* SCIC SDS PROTECTED METHODS //**************************************************************************** /** * @brief This method copies response data for requests returning response * data instead of sense data. * * @param[in] this_request This parameter specifies the request object for * which to copy the response data. * * @return none */ void scic_sds_io_request_copy_response( SCIC_SDS_REQUEST_T *this_request ) { void * response_buffer; U32 user_response_length; U32 core_response_length; SCI_SSP_RESPONSE_IU_T * ssp_response; ssp_response = (SCI_SSP_RESPONSE_IU_T *)this_request->response_buffer; response_buffer = scic_cb_ssp_task_request_get_response_data_address( this_request->user_request ); user_response_length = scic_cb_ssp_task_request_get_response_data_length( this_request->user_request ); core_response_length = sci_ssp_get_response_data_length( ssp_response->response_data_length ); user_response_length = MIN(user_response_length, core_response_length); memcpy(response_buffer, ssp_response->data, user_response_length); } //****************************************************************************** //* REQUEST STATE MACHINE //****************************************************************************** //***************************************************************************** //* DEFAULT STATE HANDLERS //***************************************************************************** /** * This method is the default action to take when an SCIC_SDS_IO_REQUEST_T * object receives a scic_sds_request_start() request. The default action is * to log a warning and return a failure status. * * @param[in] request This is the SCI_BASE_REQUEST_T object that is cast to * the SCIC_SDS_IO_REQUEST_T object for which the start operation is * requested. * * @return SCI_STATUS * @retval SCI_FAILURE_INVALID_STATE */ SCI_STATUS scic_sds_request_default_start_handler( SCI_BASE_REQUEST_T *request ) { SCIC_LOG_WARNING(( sci_base_object_get_logger((SCIC_SDS_REQUEST_T *)request), ( SCIC_LOG_OBJECT_SSP_IO_REQUEST | SCIC_LOG_OBJECT_STP_IO_REQUEST | SCIC_LOG_OBJECT_SMP_IO_REQUEST ), "SCIC IO Request requested to start while in wrong state %d\n", sci_base_state_machine_get_state( &((SCIC_SDS_REQUEST_T *)request)->parent.state_machine) )); return SCI_FAILURE_INVALID_STATE; } /** * This method is the default action to take when an SCIC_SDS_IO_REQUEST_T * object receives a scic_sds_request_terminate() request. The default action * is to log a warning and return a failure status. * * @param[in] request This is the SCI_BASE_REQUEST_T object that is cast to * the SCIC_SDS_IO_REQUEST_T object for which the start operation is * requested. * * @return SCI_STATUS * @retval SCI_FAILURE_INVALID_STATE */ SCI_STATUS scic_sds_request_default_abort_handler( SCI_BASE_REQUEST_T *request ) { SCIC_LOG_WARNING(( sci_base_object_get_logger((SCIC_SDS_REQUEST_T *)request), ( SCIC_LOG_OBJECT_SSP_IO_REQUEST | SCIC_LOG_OBJECT_STP_IO_REQUEST | SCIC_LOG_OBJECT_SMP_IO_REQUEST ), "SCIC IO Request requested to abort while in wrong state %d\n", sci_base_state_machine_get_state( &((SCIC_SDS_REQUEST_T *)request)->parent.state_machine) )); return SCI_FAILURE_INVALID_STATE; } /** * This method is the default action to take when an SCIC_SDS_IO_REQUEST_T * object receives a scic_sds_request_complete() request. The default action * is to log a warning and return a failure status. * * @param[in] request This is the SCI_BASE_REQUEST_T object that is cast to * the SCIC_SDS_IO_REQUEST_T object for which the start operation is * requested. * * @return SCI_STATUS * @retval SCI_FAILURE_INVALID_STATE */ SCI_STATUS scic_sds_request_default_complete_handler( SCI_BASE_REQUEST_T *request ) { SCIC_LOG_WARNING(( sci_base_object_get_logger((SCIC_SDS_REQUEST_T *)request), ( SCIC_LOG_OBJECT_SSP_IO_REQUEST | SCIC_LOG_OBJECT_STP_IO_REQUEST | SCIC_LOG_OBJECT_SMP_IO_REQUEST ), "SCIC IO Request requested to complete while in wrong state %d\n", sci_base_state_machine_get_state( &((SCIC_SDS_REQUEST_T *)request)->parent.state_machine) )); return SCI_FAILURE_INVALID_STATE; } /** * This method is the default action to take when an SCIC_SDS_IO_REQUEST_T * object receives a scic_sds_request_complete() request. The default action * is to log a warning and return a failure status. * * @param[in] request This is the SCI_BASE_REQUEST_T object that is cast to * the SCIC_SDS_IO_REQUEST_T object for which the start operation is * requested. * * @return SCI_STATUS * @retval SCI_FAILURE_INVALID_STATE */ SCI_STATUS scic_sds_request_default_destruct_handler( SCI_BASE_REQUEST_T *request ) { SCIC_LOG_WARNING(( sci_base_object_get_logger((SCIC_SDS_REQUEST_T *)request), ( SCIC_LOG_OBJECT_SSP_IO_REQUEST | SCIC_LOG_OBJECT_STP_IO_REQUEST | SCIC_LOG_OBJECT_SMP_IO_REQUEST ), "SCIC IO Request requested to destroy while in wrong state %d\n", sci_base_state_machine_get_state( &((SCIC_SDS_REQUEST_T *)request)->parent.state_machine) )); return SCI_FAILURE_INVALID_STATE; } /** * This method is the default action to take when an SCIC_SDS_IO_REQUEST_T * object receives a scic_sds_task_request_complete() request. The default * action is to log a warning and return a failure status. * * @param[in] request This is the SCI_BASE_REQUEST_T object that is cast to * the SCIC_SDS_IO_REQUEST_T object for which the start operation is * requested. * * @return SCI_STATUS * @retval SCI_FAILURE_INVALID_STATE */ SCI_STATUS scic_sds_request_default_tc_completion_handler( SCIC_SDS_REQUEST_T * this_request, U32 completion_code ) { SCIC_LOG_WARNING(( sci_base_object_get_logger(this_request), ( SCIC_LOG_OBJECT_SSP_IO_REQUEST | SCIC_LOG_OBJECT_STP_IO_REQUEST | SCIC_LOG_OBJECT_SMP_IO_REQUEST ), "SCIC IO Request given task completion notification %x while in wrong state %d\n", completion_code, sci_base_state_machine_get_state(&this_request->parent.state_machine) )); return SCI_FAILURE_INVALID_STATE; } /** * This method is the default action to take when an SCIC_SDS_IO_REQUEST_T * object receives a scic_sds_request_event_handler() request. The default * action is to log a warning and return a failure status. * * @param[in] request This is the SCI_BASE_REQUEST_T object that is cast to * the SCIC_SDS_IO_REQUEST_T object for which the start operation is * requested. * * @return SCI_STATUS * @retval SCI_FAILURE_INVALID_STATE */ SCI_STATUS scic_sds_request_default_event_handler( SCIC_SDS_REQUEST_T * this_request, U32 event_code ) { SCIC_LOG_WARNING(( sci_base_object_get_logger(this_request), ( SCIC_LOG_OBJECT_SSP_IO_REQUEST | SCIC_LOG_OBJECT_STP_IO_REQUEST | SCIC_LOG_OBJECT_SMP_IO_REQUEST ), "SCIC IO Request given event code notification %x while in wrong state %d\n", event_code, sci_base_state_machine_get_state(&this_request->parent.state_machine) )); return SCI_FAILURE_INVALID_STATE; } /** * This method is the default action to take when an SCIC_SDS_IO_REQUEST_T * object receives a scic_sds_request_event_handler() request. The default * action is to log a warning and return a failure status. * * @param[in] request This is the SCI_BASE_REQUEST_T object that is cast to * the SCIC_SDS_IO_REQUEST_T object for which the start operation is * requested. * * @return SCI_STATUS * @retval SCI_FAILURE_INVALID_STATE */ SCI_STATUS scic_sds_request_default_frame_handler( SCIC_SDS_REQUEST_T * this_request, U32 frame_index ) { SCIC_LOG_WARNING(( sci_base_object_get_logger(this_request), ( SCIC_LOG_OBJECT_SSP_IO_REQUEST | SCIC_LOG_OBJECT_STP_IO_REQUEST | SCIC_LOG_OBJECT_SMP_IO_REQUEST ), "SCIC IO Request given unexpected frame %x while in state %d\n", frame_index, sci_base_state_machine_get_state(&this_request->parent.state_machine) )); scic_sds_controller_release_frame( this_request->owning_controller, frame_index); return SCI_FAILURE_INVALID_STATE; } //***************************************************************************** //* CONSTRUCTED STATE HANDLERS //***************************************************************************** /** * This method implements the action taken when a constructed * SCIC_SDS_IO_REQUEST_T object receives a scic_sds_request_start() request. * * This method will, if necessary, allocate a TCi for the io request object * and then will, if necessary, copy the constructed TC data into the actual * TC buffer. If everything is successful the post context field is updated * with the TCi so the controller can post the request to the hardware. * * @param[in] request This is the SCI_BASE_REQUEST_T object that is cast to * the SCIC_SDS_IO_REQUEST_T object for which the start operation is * requested. * * @return SCI_STATUS * @retval SCI_SUCCESS * @retval SCI_FAILURE_INSUFFICIENT_RESOURCES */ static SCI_STATUS scic_sds_request_constructed_state_start_handler( SCI_BASE_REQUEST_T *request ) { SCU_TASK_CONTEXT_T *task_context; SCIC_SDS_REQUEST_T *this_request = (SCIC_SDS_REQUEST_T *)request; if (this_request->io_tag == SCI_CONTROLLER_INVALID_IO_TAG) { this_request->io_tag = scic_controller_allocate_io_tag(this_request->owning_controller); } // Record the IO Tag in the request if (this_request->io_tag != SCI_CONTROLLER_INVALID_IO_TAG) { task_context = this_request->task_context_buffer; task_context->task_index = scic_sds_io_tag_get_index(this_request->io_tag); switch (task_context->protocol_type) { case SCU_TASK_CONTEXT_PROTOCOL_SMP: case SCU_TASK_CONTEXT_PROTOCOL_SSP: // SSP/SMP Frame task_context->type.ssp.tag = this_request->io_tag; task_context->type.ssp.target_port_transfer_tag = 0xFFFF; break; case SCU_TASK_CONTEXT_PROTOCOL_STP: // STP/SATA Frame //task_context->type.stp.ncq_tag = this_request->ncq_tag; break; case SCU_TASK_CONTEXT_PROTOCOL_NONE: /// @todo When do we set no protocol type? break; default: // This should never happen since we build the IO requests break; } // Check to see if we need to copy the task context buffer // or have been building into the task context buffer if (this_request->was_tag_assigned_by_user == FALSE) { scic_sds_controller_copy_task_context( this_request->owning_controller, this_request ); } // Add to the post_context the io tag value this_request->post_context |= scic_sds_io_tag_get_index(this_request->io_tag); // Everything is good go ahead and change state sci_base_state_machine_change_state( &this_request->parent.state_machine, SCI_BASE_REQUEST_STATE_STARTED ); return SCI_SUCCESS; } return SCI_FAILURE_INSUFFICIENT_RESOURCES; } /** * This method implements the action to be taken when an SCIC_SDS_IO_REQUEST_T * object receives a scic_sds_request_terminate() request. * * Since the request has not yet been posted to the hardware the request * transitions to the completed state. * * @param[in] request This is the SCI_BASE_REQUEST_T object that is cast to * the SCIC_SDS_IO_REQUEST_T object for which the start operation is * requested. * * @return SCI_STATUS * @retval SCI_SUCCESS */ static SCI_STATUS scic_sds_request_constructed_state_abort_handler( SCI_BASE_REQUEST_T *request ) { SCIC_SDS_REQUEST_T *this_request = (SCIC_SDS_REQUEST_T *)request; // This request has been terminated by the user make sure that the correct // status code is returned scic_sds_request_set_status( this_request, SCU_TASK_DONE_TASK_ABORT, SCI_FAILURE_IO_TERMINATED ); sci_base_state_machine_change_state( &this_request->parent.state_machine, SCI_BASE_REQUEST_STATE_COMPLETED ); return SCI_SUCCESS; } //***************************************************************************** //* STARTED STATE HANDLERS //***************************************************************************** /** * This method implements the action to be taken when an SCIC_SDS_IO_REQUEST_T * object receives a scic_sds_request_terminate() request. * * Since the request has been posted to the hardware the io request state is * changed to the aborting state. * * @param[in] request This is the SCI_BASE_REQUEST_T object that is cast to * the SCIC_SDS_IO_REQUEST_T object for which the start operation is * requested. * * @return SCI_STATUS * @retval SCI_SUCCESS */ SCI_STATUS scic_sds_request_started_state_abort_handler( SCI_BASE_REQUEST_T *request ) { SCIC_SDS_REQUEST_T *this_request = (SCIC_SDS_REQUEST_T *)request; if (this_request->has_started_substate_machine) { sci_base_state_machine_stop(&this_request->started_substate_machine); } sci_base_state_machine_change_state( &this_request->parent.state_machine, SCI_BASE_REQUEST_STATE_ABORTING ); return SCI_SUCCESS; } /** * @brief This method process TC (task context) completions for normal IO * request (i.e. Task/Abort Completions of type 0). This method will * update the SCIC_SDS_IO_REQUEST_T::status field. * * @param[in] this_request This parameter specifies the request for which * a completion occurred. * @param[in] completion_code This parameter specifies the completion code * recieved from the SCU. * * @return none */ SCI_STATUS scic_sds_request_started_state_tc_completion_handler( SCIC_SDS_REQUEST_T * this_request, U32 completion_code ) { U8 data_present; SCI_SSP_RESPONSE_IU_T * response_buffer; /** * @todo Any SDMA return code of other than 0 is bad * decode 0x003C0000 to determine SDMA status */ 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 ); break; case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_EARLY_RESP): { // There are times when the SCU hardware will return an early response // because the io request specified more data than is returned by the // target device (mode pages, inquiry data, etc.). We must check the // response stats to see if this is truly a failed request or a good // request that just got completed early. SCI_SSP_RESPONSE_IU_T *response = (SCI_SSP_RESPONSE_IU_T *) this_request->response_buffer; scic_word_copy_with_swap( this_request->response_buffer, this_request->response_buffer, sizeof(SCI_SSP_RESPONSE_IU_T) / sizeof(U32) ); if (response->status == 0) { scic_sds_request_set_status( this_request, SCU_TASK_DONE_GOOD, SCI_SUCCESS_IO_DONE_EARLY ); } else { scic_sds_request_set_status( this_request, SCU_TASK_DONE_CHECK_RESPONSE, SCI_FAILURE_IO_RESPONSE_VALID ); } } break; case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_CHECK_RESPONSE): scic_word_copy_with_swap( this_request->response_buffer, this_request->response_buffer, sizeof(SCI_SSP_RESPONSE_IU_T) / sizeof(U32) ); scic_sds_request_set_status( this_request, SCU_TASK_DONE_CHECK_RESPONSE, SCI_FAILURE_IO_RESPONSE_VALID ); break; case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_RESP_LEN_ERR): /// @todo With TASK_DONE_RESP_LEN_ERR is the response frame guaranteed /// to be received before this completion status is posted? response_buffer = (SCI_SSP_RESPONSE_IU_T *)this_request->response_buffer; data_present = response_buffer->data_present & SCI_SSP_RESPONSE_IU_DATA_PRESENT_MASK; if ((data_present == 0x01) || (data_present == 0x02)) { scic_sds_request_set_status( this_request, SCU_TASK_DONE_CHECK_RESPONSE, SCI_FAILURE_IO_RESPONSE_VALID ); } else { scic_sds_request_set_status( this_request, SCU_TASK_DONE_GOOD, SCI_SUCCESS ); } break; //only stp device gets suspended. case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_ACK_NAK_TO): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_LL_PERR): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_NAK_ERR): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_DATA_LEN_ERR): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_LL_ABORT_ERR): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_XR_WD_LEN): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_MAX_PLD_ERR): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_UNEXP_RESP): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_UNEXP_SDBFIS): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_REG_ERR): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_SDB_ERR): if (this_request->protocol == SCIC_STP_PROTOCOL) { SCIC_LOG_ERROR(( sci_base_object_get_logger(this_request), SCIC_LOG_OBJECT_STP_IO_REQUEST, "SCIC IO Request 0x%x returning REMOTE_DEVICE_RESET_REQUIRED for completion code 0x%x\n", this_request, completion_code )); scic_sds_request_set_status( this_request, SCU_GET_COMPLETION_TL_STATUS(completion_code) >> SCU_COMPLETION_TL_STATUS_SHIFT, SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED ); } else { SCIC_LOG_ERROR(( sci_base_object_get_logger(this_request), SCIC_LOG_OBJECT_SSP_IO_REQUEST, "SCIC IO Request 0x%x returning CONTROLLER_SPECIFIC_IO_ERR for completion code 0x%x\n", this_request, completion_code )); scic_sds_request_set_status( this_request, SCU_GET_COMPLETION_TL_STATUS(completion_code) >> SCU_COMPLETION_TL_STATUS_SHIFT, SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR ); } break; //both stp/ssp device gets suspended case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_LF_ERR): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_OPEN_REJECT_WRONG_DESTINATION): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_OPEN_REJECT_RESERVED_ABANDON_1): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_OPEN_REJECT_RESERVED_ABANDON_2): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_OPEN_REJECT_RESERVED_ABANDON_3): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_OPEN_REJECT_BAD_DESTINATION): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_OPEN_REJECT_ZONE_VIOLATION): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_OPEN_REJECT_STP_RESOURCES_BUSY): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_OPEN_REJECT_PROTOCOL_NOT_SUPPORTED): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_OPEN_REJECT_CONNECTION_RATE_NOT_SUPPORTED): scic_sds_request_set_status( this_request, SCU_GET_COMPLETION_TL_STATUS(completion_code) >> SCU_COMPLETION_TL_STATUS_SHIFT, SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED ); break; //neither ssp nor stp gets suspended. case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_NAK_CMD_ERR): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_UNEXP_XR): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_XR_IU_LEN_ERR): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_SDMA_ERR): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_OFFSET_ERR): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_EXCESS_DATA): 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): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_UNEXP_DATA): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_OPEN_FAIL): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_VIIT_ENTRY_NV): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_IIT_ENTRY_NV): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_RNCNV_OUTBOUND): default: SCIC_LOG_ERROR(( sci_base_object_get_logger(this_request), SCIC_LOG_OBJECT_SSP_IO_REQUEST | SCIC_LOG_OBJECT_STP_IO_REQUEST, "SCIC IO Request 0x%x returning CONTROLLER_SPECIFIC_IO_ERR for completion code 0x%x\n", this_request, completion_code )); scic_sds_request_set_status( this_request, SCU_GET_COMPLETION_TL_STATUS(completion_code) >> SCU_COMPLETION_TL_STATUS_SHIFT, SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR ); break; } /** * @todo This is probably wrong for ACK/NAK timeout conditions */ // In all cases we will treat this as the completion of the IO request. sci_base_state_machine_change_state( &this_request->parent.state_machine, SCI_BASE_REQUEST_STATE_COMPLETED ); return SCI_SUCCESS; } /** * This method implements the action to be taken when an SCIC_SDS_IO_REQUEST_T * object receives a scic_sds_request_frame_handler() request. * * This method first determines the frame type received. If this is a * response frame then the response data is copied to the io request response * buffer for processing at completion time. * * If the frame type is not a response buffer an error is logged. * * @param[in] request This is the SCI_BASE_REQUEST_T object that is cast to * the SCIC_SDS_IO_REQUEST_T object for which the start operation is * requested. * @param[in] frame_index This is the index of the unsolicited frame to be * processed. * * @return SCI_STATUS * @retval SCI_SUCCESS * @retval SCI_FAILURE_INVALID_PARAMETER_VALUE */ static SCI_STATUS scic_sds_request_started_state_frame_handler( SCIC_SDS_REQUEST_T * this_request, U32 frame_index ) { SCI_STATUS status; SCI_SSP_FRAME_HEADER_T *frame_header; /// @todo If this is a response frame we must record that we received it status = scic_sds_unsolicited_frame_control_get_header( &(scic_sds_request_get_controller(this_request)->uf_control), frame_index, (void**) &frame_header ); if (frame_header->frame_type == SCI_SAS_RESPONSE_FRAME) { SCI_SSP_RESPONSE_IU_T *response_buffer; status = scic_sds_unsolicited_frame_control_get_buffer( &(scic_sds_request_get_controller(this_request)->uf_control), frame_index, (void**) &response_buffer ); scic_word_copy_with_swap( this_request->response_buffer, (U32 *)response_buffer, sizeof(SCI_SSP_RESPONSE_IU_T) ); response_buffer = (SCI_SSP_RESPONSE_IU_T *)this_request->response_buffer; if ( (response_buffer->data_present == 0x01) || (response_buffer->data_present == 0x02) ) { scic_sds_request_set_status( this_request, SCU_TASK_DONE_CHECK_RESPONSE, SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR ); } else { scic_sds_request_set_status( this_request, SCU_TASK_DONE_GOOD, SCI_SUCCESS ); } } 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_SSP_IO_REQUEST, "SCIC IO Request 0x%x received unexpected frame %d type 0x%02x\n", this_request, frame_index, frame_header->frame_type )); } // In any case we are done with this frame buffer return it to the // controller scic_sds_controller_release_frame( this_request->owning_controller, frame_index ); return SCI_SUCCESS; } //***************************************************************************** //* COMPLETED STATE HANDLERS //***************************************************************************** /** * This method implements the action to be taken when an SCIC_SDS_IO_REQUEST_T * object receives a scic_sds_request_complete() request. * * This method frees up any io request resources that have been allocated and * transitions the request to its final state. * * @todo Consider stopping the state machine instead of transitioning to the * final state? * * @param[in] request This is the SCI_BASE_REQUEST_T object that is cast to * the SCIC_SDS_IO_REQUEST_T object for which the start operation is * requested. * * @return SCI_STATUS * @retval SCI_SUCCESS */ static SCI_STATUS scic_sds_request_completed_state_complete_handler( SCI_BASE_REQUEST_T *request ) { SCIC_SDS_REQUEST_T *this_request = (SCIC_SDS_REQUEST_T *)request; if (this_request->was_tag_assigned_by_user != TRUE) { scic_controller_free_io_tag( this_request->owning_controller, this_request->io_tag ); } if (this_request->saved_rx_frame_index != SCU_INVALID_FRAME_INDEX) { scic_sds_controller_release_frame( this_request->owning_controller, this_request->saved_rx_frame_index); } sci_base_state_machine_change_state( &this_request->parent.state_machine, SCI_BASE_REQUEST_STATE_FINAL ); scic_sds_request_deinitialize_state_logging(this_request); return SCI_SUCCESS; } //***************************************************************************** //* ABORTING STATE HANDLERS //***************************************************************************** /** * This method implements the action to be taken when an SCIC_SDS_IO_REQUEST_T * object receives a scic_sds_request_terminate() request. * * This method is the io request aborting state abort handlers. On receipt of * a multiple terminate requests the io request will transition to the * completed state. This should not happen in normal operation. * * @param[in] request This is the SCI_BASE_REQUEST_T object that is cast to * the SCIC_SDS_IO_REQUEST_T object for which the start operation is * requested. * * @return SCI_STATUS * @retval SCI_SUCCESS */ static SCI_STATUS scic_sds_request_aborting_state_abort_handler( SCI_BASE_REQUEST_T *request ) { SCIC_SDS_REQUEST_T *this_request = (SCIC_SDS_REQUEST_T *)request; sci_base_state_machine_change_state( &this_request->parent.state_machine, SCI_BASE_REQUEST_STATE_COMPLETED ); return SCI_SUCCESS; } /** * This method implements the action to be taken when an SCIC_SDS_IO_REQUEST_T * object receives a scic_sds_request_task_completion() request. * * This method decodes the completion type waiting for the abort task complete * notification. When the abort task complete is received the io request * transitions to the completed state. * * @param[in] request This is the SCI_BASE_REQUEST_T object that is cast to * the SCIC_SDS_IO_REQUEST_T object for which the start operation is * requested. * * @return SCI_STATUS * @retval SCI_SUCCESS */ static SCI_STATUS scic_sds_request_aborting_state_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_TASK_MANAGEMENT, "scic_sds_request_aborting_state_tc_completion_handler(0x%x,0x%x) enter\n", this_request, completion_code )); switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case (SCU_TASK_DONE_GOOD << SCU_COMPLETION_TL_STATUS_SHIFT): case (SCU_TASK_DONE_TASK_ABORT << SCU_COMPLETION_TL_STATUS_SHIFT): scic_sds_request_set_status( this_request, SCU_TASK_DONE_TASK_ABORT, SCI_FAILURE_IO_TERMINATED ); sci_base_state_machine_change_state( &this_request->parent.state_machine, SCI_BASE_REQUEST_STATE_COMPLETED ); break; default: // Unless we get some strange error wait for the task abort to complete // TODO: Should there be a state change for this completion? break; } return SCI_SUCCESS; } /** * This method implements the action to be taken when an SCIC_SDS_IO_REQUEST_T * object receives a scic_sds_request_frame_handler() request. * * This method discards the unsolicited frame since we are waiting for the * abort task completion. * * @param[in] request This is the SCI_BASE_REQUEST_T object that is cast to * the SCIC_SDS_IO_REQUEST_T object for which the start operation is * requested. * * @return SCI_STATUS * @retval SCI_SUCCESS */ static SCI_STATUS scic_sds_request_aborting_state_frame_handler( SCIC_SDS_REQUEST_T * this_request, U32 frame_index ) { // TODO: Is it even possible to get an unsolicited frame in the aborting state? scic_sds_controller_release_frame( this_request->owning_controller, frame_index); return SCI_SUCCESS; } // --------------------------------------------------------------------------- SCIC_SDS_IO_REQUEST_STATE_HANDLER_T scic_sds_request_state_handler_table[SCI_BASE_REQUEST_MAX_STATES] = { // SCI_BASE_REQUEST_STATE_INITIAL { { scic_sds_request_default_start_handler, scic_sds_request_default_abort_handler, scic_sds_request_default_complete_handler, scic_sds_request_default_destruct_handler }, scic_sds_request_default_tc_completion_handler, scic_sds_request_default_event_handler, scic_sds_request_default_frame_handler }, // SCI_BASE_REQUEST_STATE_CONSTRUCTED { { scic_sds_request_constructed_state_start_handler, scic_sds_request_constructed_state_abort_handler, scic_sds_request_default_complete_handler, scic_sds_request_default_destruct_handler }, scic_sds_request_default_tc_completion_handler, scic_sds_request_default_event_handler, scic_sds_request_default_frame_handler }, // SCI_BASE_REQUEST_STATE_STARTED { { 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_request_started_state_tc_completion_handler, scic_sds_request_default_event_handler, scic_sds_request_started_state_frame_handler }, // SCI_BASE_REQUEST_STATE_COMPLETED { { scic_sds_request_default_start_handler, scic_sds_request_default_abort_handler, scic_sds_request_completed_state_complete_handler, scic_sds_request_default_destruct_handler }, scic_sds_request_default_tc_completion_handler, scic_sds_request_default_event_handler, scic_sds_request_default_frame_handler }, // SCI_BASE_REQUEST_STATE_ABORTING { { scic_sds_request_default_start_handler, scic_sds_request_aborting_state_abort_handler, scic_sds_request_default_complete_handler, scic_sds_request_default_destruct_handler }, scic_sds_request_aborting_state_tc_completion_handler, scic_sds_request_default_event_handler, scic_sds_request_aborting_state_frame_handler, }, // SCI_BASE_REQUEST_STATE_FINAL { { scic_sds_request_default_start_handler, scic_sds_request_default_abort_handler, scic_sds_request_default_complete_handler, scic_sds_request_default_destruct_handler }, scic_sds_request_default_tc_completion_handler, scic_sds_request_default_event_handler, scic_sds_request_default_frame_handler } }; /** * This method implements the actions taken when entering the * SCI_BASE_REQUEST_STATE_INITIAL state. This state is entered when the * initial base request is constructed. Entry into the initial state sets all * handlers for the io request object to their default handlers. * * @param[in] object This parameter specifies the base object for which the * state transition is occurring. * * @return none */ static void scic_sds_request_initial_state_enter( SCI_BASE_OBJECT_T *object ) { SCIC_SDS_REQUEST_T *this_request = (SCIC_SDS_REQUEST_T *)object; SET_STATE_HANDLER( this_request, scic_sds_request_state_handler_table, SCI_BASE_REQUEST_STATE_INITIAL ); } /** * This method implements the actions taken when entering the * SCI_BASE_REQUEST_STATE_CONSTRUCTED state. * The method sets the state handlers for the the constructed state. * * @param[in] object The io request object that is to enter the constructed * state. * * @return none */ static void scic_sds_request_constructed_state_enter( SCI_BASE_OBJECT_T *object ) { SCIC_SDS_REQUEST_T *this_request = (SCIC_SDS_REQUEST_T *)object; SET_STATE_HANDLER( this_request, scic_sds_request_state_handler_table, SCI_BASE_REQUEST_STATE_CONSTRUCTED ); } /** * This method implements the actions taken when entering the * SCI_BASE_REQUEST_STATE_STARTED state. If the io request object type is a * SCSI Task request we must enter the started substate machine. * * @param[in] object This parameter specifies the base object for which the * state transition is occuring. This is cast into a * SCIC_SDS_IO_REQUEST object. * * @return none */ static void scic_sds_request_started_state_enter( SCI_BASE_OBJECT_T *object ) { SCIC_SDS_REQUEST_T *this_request = (SCIC_SDS_REQUEST_T *)object; SET_STATE_HANDLER( this_request, scic_sds_request_state_handler_table, SCI_BASE_REQUEST_STATE_STARTED ); // Most of the request state machines have a started substate machine so // start its execution on the entry to the started state. if (this_request->has_started_substate_machine == TRUE) sci_base_state_machine_start(&this_request->started_substate_machine); } /** * This method implements the actions taken when exiting the * SCI_BASE_REQUEST_STATE_STARTED state. For task requests the action will be * to stop the started substate machine. * * @param[in] object This parameter specifies the base object for which the * state transition is occuring. This object is cast into a * SCIC_SDS_IO_REQUEST object. * * @return none */ static void scic_sds_request_started_state_exit( SCI_BASE_OBJECT_T *object ) { SCIC_SDS_REQUEST_T *this_request = (SCIC_SDS_REQUEST_T *)object; if (this_request->has_started_substate_machine == TRUE) sci_base_state_machine_stop(&this_request->started_substate_machine); } /** * This method implements the actions taken when entering the * SCI_BASE_REQUEST_STATE_COMPLETED state. This state is entered when the * SCIC_SDS_IO_REQUEST has completed. The method will decode the request * completion status and convert it to an SCI_STATUS to return in the * completion callback function. * * @param[in] object This parameter specifies the base object for which the * state transition is occuring. This object is cast into a * SCIC_SDS_IO_REQUEST object. * * @return none */ static void scic_sds_request_completed_state_enter( SCI_BASE_OBJECT_T *object ) { SCIC_SDS_REQUEST_T *this_request = (SCIC_SDS_REQUEST_T *)object; SET_STATE_HANDLER( this_request, scic_sds_request_state_handler_table, SCI_BASE_REQUEST_STATE_COMPLETED ); // Tell the SCI_USER that the IO request is complete if (this_request->is_task_management_request == FALSE) { scic_cb_io_request_complete( scic_sds_request_get_controller(this_request), scic_sds_request_get_device(this_request), this_request, this_request->sci_status ); } else { scic_cb_task_request_complete( scic_sds_request_get_controller(this_request), scic_sds_request_get_device(this_request), this_request, this_request->sci_status ); } } /** * This method implements the actions taken when entering the * SCI_BASE_REQUEST_STATE_ABORTING state. * * @param[in] object This parameter specifies the base object for which the * state transition is occuring. This object is cast into a * SCIC_SDS_IO_REQUEST object. * * @return none */ static void scic_sds_request_aborting_state_enter( SCI_BASE_OBJECT_T *object ) { SCIC_SDS_REQUEST_T *this_request = (SCIC_SDS_REQUEST_T *)object; // Setting the abort bit in the Task Context is required by the silicon. this_request->task_context_buffer->abort = 1; SET_STATE_HANDLER( this_request, scic_sds_request_state_handler_table, SCI_BASE_REQUEST_STATE_ABORTING ); } /** * This method implements the actions taken when entering the * SCI_BASE_REQUEST_STATE_FINAL state. The only action required is to put the * state handlers in place. * * @param[in] object This parameter specifies the base object for which the * state transition is occuring. This is cast into a * SCIC_SDS_IO_REQUEST object. * * @return none */ static void scic_sds_request_final_state_enter( SCI_BASE_OBJECT_T *object ) { SCIC_SDS_REQUEST_T *this_request = (SCIC_SDS_REQUEST_T *)object; SET_STATE_HANDLER( this_request, scic_sds_request_state_handler_table, SCI_BASE_REQUEST_STATE_FINAL ); } // --------------------------------------------------------------------------- SCI_BASE_STATE_T scic_sds_request_state_table[SCI_BASE_REQUEST_MAX_STATES] = { { SCI_BASE_REQUEST_STATE_INITIAL, scic_sds_request_initial_state_enter, NULL }, { SCI_BASE_REQUEST_STATE_CONSTRUCTED, scic_sds_request_constructed_state_enter, NULL }, { SCI_BASE_REQUEST_STATE_STARTED, scic_sds_request_started_state_enter, scic_sds_request_started_state_exit }, { SCI_BASE_REQUEST_STATE_COMPLETED, scic_sds_request_completed_state_enter, NULL }, { SCI_BASE_REQUEST_STATE_ABORTING, scic_sds_request_aborting_state_enter, NULL }, { SCI_BASE_REQUEST_STATE_FINAL, scic_sds_request_final_state_enter, NULL } };