diff options
Diffstat (limited to 'drivers/scsi/isci/core/scic_sds_request.c')
| -rw-r--r-- | drivers/scsi/isci/core/scic_sds_request.c | 2179 |
1 files changed, 2179 insertions, 0 deletions
diff --git a/drivers/scsi/isci/core/scic_sds_request.c b/drivers/scsi/isci/core/scic_sds_request.c new file mode 100644 index 000000000000..c696d246ea5a --- /dev/null +++ b/drivers/scsi/isci/core/scic_sds_request.c @@ -0,0 +1,2179 @@ +/* + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * The full GNU General Public License is included in this distribution + * in the file called LICENSE.GPL. + * + * BSD LICENSE + * + * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + + +#include "intel_sas.h" +#include "intel_sata.h" +#include "intel_sat.h" +#include "sci_base_request.h" +#include "scic_controller.h" +#include "scic_io_request.h" +#include "scic_remote_device.h" +#include "scic_sds_controller.h" +#include "scic_sds_controller_registers.h" +#include "scic_sds_pci.h" +#include "scic_sds_port.h" +#include "scic_sds_remote_device.h" +#include "scic_sds_request.h" +#include "scic_sds_smp_request.h" +#include "scic_sds_stp_request.h" +#include "scic_sds_unsolicited_frame_control.h" +#include "scic_user_callback.h" +#include "sci_environment.h" +#include "sci_types.h" +#include "sci_util.h" +#include "scu_completion_codes.h" +#include "scu_constants.h" +#include "scu_task_context.h" + +#if !defined(DISABLE_ATAPI) +#include "scic_sds_stp_packet_request.h" +#endif + +/* + * **************************************************************************** + * * 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 + * **************************************************************************** */ + +/** + * scic_sds_request_get_user_request() - + * + * 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) + + +/** + * scic_ssp_io_request_get_object_size() - + * + * 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. + */ +#define scic_ssp_io_request_get_object_size() \ + (\ + sizeof(struct sci_ssp_command_iu) \ + + sizeof(struct sci_ssp_response_iu) \ + ) + +/** + * scic_sds_ssp_request_get_command_buffer() - + * + * This macro returns the address of the ssp command buffer in the io request + * memory + */ +#define scic_sds_ssp_request_get_command_buffer(memory) \ + ((struct sci_ssp_command_iu *)(\ + ((char *)(memory)) + sizeof(struct scic_sds_request) \ + )) + +/** + * scic_sds_ssp_request_get_response_buffer() - + * + * This macro returns the address of the ssp response buffer in the io request + * memory + */ +#define scic_sds_ssp_request_get_response_buffer(memory) \ + ((struct sci_ssp_response_iu *)(\ + ((char *)(scic_sds_ssp_request_get_command_buffer(memory))) \ + + sizeof(struct sci_ssp_command_iu) \ + )) + +/** + * scic_sds_ssp_request_get_task_context_buffer() - + * + * This macro returns the address of the task context buffer in the io request + * memory + */ +#define scic_sds_ssp_request_get_task_context_buffer(memory) \ + ((struct scu_task_context *)(\ + ((char *)(scic_sds_ssp_request_get_response_buffer(memory))) \ + + sizeof(struct sci_ssp_response_iu) \ + )) + +/** + * scic_sds_ssp_request_get_sgl_element_buffer() - + * + * 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) \ + ((struct scu_sgl_element_pair *)(\ + ((char *)(scic_sds_ssp_request_get_task_context_buffer(memory))) \ + + sizeof(struct scu_task_context) \ + )) + + +/** + * scic_ssp_task_request_get_object_size() - + * + * 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(struct sci_ssp_task_iu) \ + + sizeof(struct sci_ssp_response_iu) \ + ) + +/** + * scic_sds_ssp_task_request_get_command_buffer() - + * + * 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) \ + ((struct sci_ssp_task_iu *)(\ + ((char *)(memory)) + sizeof(struct scic_sds_request) \ + )) + +/** + * scic_sds_ssp_task_request_get_response_buffer() - + * + * 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) \ + ((struct sci_ssp_response_iu *)(\ + ((char *)(scic_sds_ssp_task_request_get_command_buffer(memory))) \ + + sizeof(struct sci_ssp_task_iu) \ + )) + +/** + * scic_sds_ssp_task_request_get_task_context_buffer() - + * + * This macro returs the task context buffer for the SSP task request. + */ +#define scic_sds_ssp_task_request_get_task_context_buffer(memory) \ + ((struct scu_task_context *)(\ + ((char *)(scic_sds_ssp_task_request_get_response_buffer(memory))) \ + + sizeof(struct sci_ssp_response_iu) \ + )) + + + +/* + * **************************************************************************** + * * SCIC SDS IO REQUEST PRIVATE METHODS + * **************************************************************************** */ + +/** + * + * + * This method returns the size required to store an SSP IO request object. u32 + */ +static u32 scic_sds_ssp_request_get_object_size(void) +{ + return sizeof(struct scic_sds_request) + + scic_ssp_io_request_get_object_size() + + sizeof(struct scu_task_context) + + CACHE_LINE_SIZE + + sizeof(struct scu_sgl_element_pair) * SCU_MAX_SGL_ELEMENT_PAIRS; +} + +/** + * This method returns the sgl element pair for the specificed sgl_pair index. + * @this_request: This parameter specifies the IO request for which to retrieve + * the Scatter-Gather List element pair. + * @sgl_pair_index: This parameter specifies the index into the SGL element + * pair to be retrieved. + * + * This method returns a pointer to an struct scu_sgl_element_pair. + */ +static struct scu_sgl_element_pair *scic_sds_request_get_sgl_element_pair( + struct scic_sds_request *this_request, + u32 sgl_pair_index + ) { + struct scu_task_context *task_context; + + task_context = (struct scu_task_context *)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]; +} + +/** + * This function will build the SGL list for an IO request. + * @this_request: This parameter specifies the IO request for which to build + * the Scatter-Gather List. + * + */ +void scic_sds_request_build_sgl( + struct scic_sds_request *this_request) +{ + void *os_sge; + void *os_handle; + dma_addr_t physical_address; + u32 sgl_pair_index = 0; + struct scu_sgl_element_pair *scu_sgl_list = NULL; + struct scu_sgl_element_pair *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 = + upper_32_bits(physical_address); + previous_pair->next_pair_lower = + lower_32_bits(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; + } +} + +/** + * This method initializes common portions of the io request object. This + * includes construction of the struct sci_base_request parent. + * @the_controller: This parameter specifies the controller for which the + * request is being constructed. + * @the_target: This parameter specifies the remote device for which the + * request is being constructed. + * @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. + * @user_io_request_object: This parameter specifies the user request object + * for which the request is being constructed. + * @this_request: This parameter specifies the request being constructed. + * + */ +static void scic_sds_general_request_construct( + struct scic_sds_controller *the_controller, + struct scic_sds_remote_device *the_target, + u16 io_tag, + void *user_io_request_object, + struct scic_sds_request *this_request) +{ + sci_base_request_construct( + &this_request->parent, + 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->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); + } +} + +/** + * This method build the remainder of the IO request object. + * @this_request: This parameter specifies the request object being constructed. + * + * The scic_sds_general_request_construct() must be called before this call is + * valid. none + */ +static void scic_sds_ssp_io_request_assign_buffers( + struct scic_sds_request *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); + this_request->task_context_buffer = + scic_sds_request_align_task_context_buffer(this_request->task_context_buffer); + } +} + +/** + * This method constructs the SSP Command IU data for this io request object. + * @this_request: This parameter specifies the request object for which the SSP + * command information unit is being built. + * + */ +static void scic_sds_io_request_build_ssp_command_iu( + struct scic_sds_request *this_request) +{ + struct sci_ssp_command_iu *command_frame; + void *os_handle; + u32 cdb_length; + u32 *cdb_buffer; + + command_frame = + (struct sci_ssp_command_iu *)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_io_request_get_lun(os_handle); + + ((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); +} + + +/** + * This method constructs the SSP Task IU data for this io request object. + * @this_request: + * + */ +static void scic_sds_task_request_build_ssp_task_iu( + struct scic_sds_request *this_request) +{ + struct sci_ssp_task_iu *command_frame; + void *os_handle; + + command_frame = + (struct sci_ssp_task_iu *)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); +} + + +/** + * This method is will fill in the SCU Task Context for any type of SSP request. + * @this_request: + * @task_context: + * + */ +static void scu_ssp_reqeust_construct_task_context( + struct scic_sds_request *this_request, + struct scu_task_context *task_context) +{ + dma_addr_t physical_address; + struct scic_sds_controller *owning_controller; + struct scic_sds_remote_device *target_device; + struct scic_sds_port *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 = + upper_32_bits(physical_address); + task_context->command_iu_lower = + lower_32_bits(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 = + upper_32_bits(physical_address); + task_context->response_iu_lower = + lower_32_bits(physical_address); +} + +/** + * This method is will fill in the SCU Task Context for a SSP IO request. + * @this_request: + * + */ +static void scu_ssp_io_request_construct_task_context( + struct scic_sds_request *this_request, + SCI_IO_REQUEST_DATA_DIRECTION data_direction, + u32 transfer_length_bytes) +{ + struct scu_task_context *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(struct sci_ssp_command_iu) / 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); + } +} + + +/** + * This method will fill in the remainder of the io request object for SSP Task + * requests. + * @this_request: + * + */ +static void scic_sds_ssp_task_request_assign_buffers( + struct scic_sds_request *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); + } +} + +/** + * 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. + * @this_request: This parameter specifies the task request object being + * constructed. + * + */ +static void scu_ssp_task_request_construct_task_context( + struct scic_sds_request *this_request) +{ + struct scu_task_context *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(struct sci_ssp_task_iu) / sizeof(u32); +} + + +/** + * This method constructs the SSP Command IU data for this ssp passthrough + * comand request object. + * @this_request: This parameter specifies the request object for which the SSP + * command information unit is being built. + * + * enum sci_status, returns invalid parameter is cdb > 16 + */ + + +/** + * This method constructs the SATA request object. + * @this_request: + * @sat_protocol: + * @transfer_length: + * @data_direction: + * @copy_rx_frame: + * + * enum sci_status + */ +static enum sci_status scic_io_request_construct_sata( + struct scic_sds_request *this_request, + u8 sat_protocol, + u32 transfer_length, + SCI_IO_REQUEST_DATA_DIRECTION data_direction, + bool copy_rx_frame) +{ + enum sci_status status = SCI_SUCCESS; + + switch (sat_protocol) { + case SAT_PROTOCOL_PIO_DATA_IN: + case SAT_PROTOCOL_PIO_DATA_OUT: + status = scic_sds_stp_pio_request_construct(this_request, sat_protocol, copy_rx_frame); + break; + + case SAT_PROTOCOL_UDMA_DATA_IN: + case SAT_PROTOCOL_UDMA_DATA_OUT: + status = scic_sds_stp_udma_request_construct(this_request, transfer_length, data_direction); + break; + + 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_NON_DATA: + status = scic_sds_stp_non_data_request_construct(this_request); + break; + + case SAT_PROTOCOL_FPDMA: + status = scic_sds_stp_ncq_request_construct(this_request, transfer_length, data_direction); + break; + +#if !defined(DISABLE_ATAPI) + case SAT_PROTOCOL_PACKET_NON_DATA: + case SAT_PROTOCOL_PACKET_DMA_DATA_IN: + case SAT_PROTOCOL_PACKET_DMA_DATA_OUT: + case SAT_PROTOCOL_PACKET_PIO_DATA_IN: + case SAT_PROTOCOL_PACKET_PIO_DATA_OUT: + status = scic_sds_stp_packet_request_construct(this_request); + break; +#endif + + case SAT_PROTOCOL_DMA_QUEUED: + case SAT_PROTOCOL_DMA: + case SAT_PROTOCOL_DEVICE_DIAGNOSTIC: + case SAT_PROTOCOL_DEVICE_RESET: + case SAT_PROTOCOL_RETURN_RESPONSE_INFO: + default: + dev_err(scic_to_dev(this_request->owning_controller), + "%s: SCIC IO Request 0x%p received un-handled " + "SAT Protocl %d.\n", + __func__, this_request, sat_protocol); + + status = SCI_FAILURE; + break; + } + + return status; +} + +/* + * **************************************************************************** + * * SCIC Interface Implementation + * **************************************************************************** */ + + + + +/* --------------------------------------------------------------------------- */ + +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)); +} + +/* --------------------------------------------------------------------------- */ + + +/* --------------------------------------------------------------------------- */ + + +/* --------------------------------------------------------------------------- */ + + +/* --------------------------------------------------------------------------- */ + +enum sci_status scic_io_request_construct( + struct scic_sds_controller *scic_controller, + struct scic_sds_remote_device *scic_remote_device, + u16 io_tag, + void *user_io_request_object, + void *scic_io_request_memory, + struct scic_sds_request **new_scic_io_request_handle) +{ + enum sci_status status = SCI_SUCCESS; + struct scic_sds_request *this_request; + struct smp_discover_response_protocols device_protocol; + + this_request = (struct scic_sds_request *)scic_io_request_memory; + + /* Build the common part of the request */ + scic_sds_general_request_construct( + (struct scic_sds_controller *)scic_controller, + (struct scic_sds_remote_device *)scic_remote_device, + io_tag, + user_io_request_object, + this_request + ); + + if ( + scic_sds_remote_device_get_index((struct scic_sds_remote_device *)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(struct sata_fis_reg_h2d)); + } else if (device_protocol.u.bits.attached_smp_target) { + scic_sds_smp_request_assign_buffers(this_request); + memset(this_request->command_buffer, 0, sizeof(struct smp_request)); + } else { + status = SCI_FAILURE_UNSUPPORTED_PROTOCOL; + } + + if (status == SCI_SUCCESS) { + memset( + this_request->task_context_buffer, + 0, + SCI_FIELD_OFFSET(struct scu_task_context, sgl_pair_ab) + ); + *new_scic_io_request_handle = scic_io_request_memory; + } + + return status; +} + +/* --------------------------------------------------------------------------- */ + + +enum sci_status scic_task_request_construct( + struct scic_sds_controller *controller, + struct scic_sds_remote_device *remote_device, + u16 io_tag, + void *user_io_request_object, + void *scic_task_request_memory, + struct scic_sds_request **new_scic_task_request_handle) +{ + enum sci_status status = SCI_SUCCESS; + struct scic_sds_request *this_request = (struct scic_sds_request *) + scic_task_request_memory; + struct smp_discover_response_protocols device_protocol; + + /* Build the common part of the request */ + scic_sds_general_request_construct( + (struct scic_sds_controller *)controller, + (struct scic_sds_remote_device *)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(struct scu_task_context)); + *new_scic_task_request_handle = scic_task_request_memory; + } + + return status; +} + + +enum sci_status scic_io_request_construct_basic_ssp( + struct scic_sds_request *sci_req) +{ + void *os_handle; + + sci_req->protocol = SCIC_SSP_PROTOCOL; + + os_handle = scic_sds_request_get_user_request(sci_req); + + scu_ssp_io_request_construct_task_context( + sci_req, + 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(sci_req); + + sci_base_state_machine_change_state( + &sci_req->parent.state_machine, + SCI_BASE_REQUEST_STATE_CONSTRUCTED + ); + + return SCI_SUCCESS; +} + + +enum sci_status scic_task_request_construct_ssp( + struct scic_sds_request *sci_req) +{ + /* Construct the SSP Task SCU Task Context */ + scu_ssp_task_request_construct_task_context(sci_req); + + /* Fill in the SSP Task IU */ + scic_sds_task_request_build_ssp_task_iu(sci_req); + + sci_base_state_machine_change_state( + &sci_req->parent.state_machine, + SCI_BASE_REQUEST_STATE_CONSTRUCTED + ); + + return SCI_SUCCESS; +} + + +enum sci_status scic_io_request_construct_basic_sata( + struct scic_sds_request *sci_req) +{ + enum sci_status status; + struct scic_sds_stp_request *this_stp_request; + u8 sat_protocol; + u32 transfer_length; + SCI_IO_REQUEST_DATA_DIRECTION data_direction; + bool copy_rx_frame = false; + + this_stp_request = (struct scic_sds_stp_request *)sci_req; + + sci_req->protocol = SCIC_STP_PROTOCOL; + + transfer_length = + scic_cb_io_request_get_transfer_length(sci_req->user_request); + data_direction = + scic_cb_io_request_get_data_direction(sci_req->user_request); + + sat_protocol = scic_cb_request_get_sat_protocol(sci_req->user_request); + copy_rx_frame = scic_cb_io_request_do_copy_rx_frames(this_stp_request->parent.user_request); + + status = scic_io_request_construct_sata( + sci_req, + sat_protocol, + transfer_length, + data_direction, + copy_rx_frame + ); + + if (status == SCI_SUCCESS) + sci_base_state_machine_change_state( + &sci_req->parent.state_machine, + SCI_BASE_REQUEST_STATE_CONSTRUCTED + ); + + return status; +} + + +enum sci_status scic_task_request_construct_sata( + struct scic_sds_request *sci_req) +{ + enum sci_status status; + u8 sat_protocol = scic_cb_request_get_sat_protocol(sci_req->user_request); + + switch (sat_protocol) { + case SAT_PROTOCOL_ATA_HARD_RESET: + case SAT_PROTOCOL_SOFT_RESET: + status = scic_sds_stp_soft_reset_request_construct(sci_req); + break; + + default: + dev_err(scic_to_dev(sci_req->owning_controller), + "%s: SCIC IO Request 0x%p received un-handled SAT " + "Protocl %d.\n", + __func__, + sci_req, + sat_protocol); + + status = SCI_FAILURE; + break; + } + + if (status == SCI_SUCCESS) + sci_base_state_machine_change_state( + &sci_req->parent.state_machine, + SCI_BASE_REQUEST_STATE_CONSTRUCTED + ); + + return status; +} + + +u16 scic_io_request_get_io_tag( + struct scic_sds_request *sci_req) +{ + return sci_req->io_tag; +} + + +u32 scic_request_get_controller_status( + struct scic_sds_request *sci_req) +{ + return sci_req->scu_status; +} + + +void *scic_io_request_get_command_iu_address( + struct scic_sds_request *sci_req) +{ + return sci_req->command_buffer; +} + + +void *scic_io_request_get_response_iu_address( + struct scic_sds_request *sci_req) +{ + return sci_req->response_buffer; +} + + +#define SCU_TASK_CONTEXT_SRAM 0x200000 +u32 scic_io_request_get_number_of_bytes_transferred( + struct scic_sds_request *scic_sds_request) +{ + u32 ret_val = 0; + + 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 struct 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(struct scu_task_context, type.ssp.data_offset)) + + ((sizeof(struct scu_task_context)) * scic_sds_io_tag_get_index(scic_sds_request->io_tag)) + ) + ); + } + + return ret_val; +} + + +/* + * **************************************************************************** + * * SCIC SDS Interface Implementation + * **************************************************************************** */ + +/** + * + * @this_request: The SCIC_SDS_IO_REQUEST_T object for which the start + * operation is to be executed. + * + * This method invokes the base state start request handler for the + * SCIC_SDS_IO_REQUEST_T object. enum sci_status + */ +enum sci_status scic_sds_request_start( + struct scic_sds_request *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_request: The SCIC_SDS_IO_REQUEST_T object for which the start + * operation is to be executed. + * + * This method invokes the base state terminate request handber for the + * SCIC_SDS_IO_REQUEST_T object. enum sci_status + */ +enum sci_status scic_sds_io_request_terminate( + struct scic_sds_request *this_request) +{ + return this_request->state_handlers->parent.abort_handler( + &this_request->parent); +} + +/** + * + * @this_request: The SCIC_SDS_IO_REQUEST_T object for which the start + * operation is to be executed. + * + * This method invokes the base state request completion handler for the + * SCIC_SDS_IO_REQUEST_T object. enum sci_status + */ +enum sci_status scic_sds_io_request_complete( + struct scic_sds_request *this_request) +{ + return this_request->state_handlers->parent.complete_handler( + &this_request->parent); +} + +/** + * + * @this_request: The SCIC_SDS_IO_REQUEST_T object for which the start + * operation is to be executed. + * @event_code: The event code returned by the hardware for the task reqeust. + * + * This method invokes the core state handler for the SCIC_SDS_IO_REQUEST_T + * object. enum sci_status + */ +enum sci_status scic_sds_io_request_event_handler( + struct scic_sds_request *this_request, + u32 event_code) +{ + return this_request->state_handlers->event_handler(this_request, event_code); +} + +/** + * + * @this_request: The SCIC_SDS_IO_REQUEST_T object for which the start + * operation is to be executed. + * @frame_index: The frame index returned by the hardware for the reqeust + * object. + * + * This method invokes the core state frame handler for the + * SCIC_SDS_IO_REQUEST_T object. enum sci_status + */ +enum sci_status scic_sds_io_request_frame_handler( + struct scic_sds_request *this_request, + u32 frame_index) +{ + return this_request->state_handlers->frame_handler(this_request, frame_index); +} + +/** + * + * @this_request: The SCIC_SDS_IO_REQUEST_T object for which the task start + * operation is to be executed. + * + * This method invokes the core state task complete handler for the + * SCIC_SDS_IO_REQUEST_T object. enum sci_status + */ + +/* + * **************************************************************************** + * * SCIC SDS PROTECTED METHODS + * **************************************************************************** */ + +/** + * This method copies response data for requests returning response data + * instead of sense data. + * @this_request: This parameter specifies the request object for which to copy + * the response data. + * + */ +void scic_sds_io_request_copy_response( + struct scic_sds_request *this_request) +{ + void *response_buffer; + u32 user_response_length; + u32 core_response_length; + struct sci_ssp_response_iu *ssp_response; + + ssp_response = (struct sci_ssp_response_iu *)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); +} + +/* + * ***************************************************************************** + * * DEFAULT STATE HANDLERS + * ***************************************************************************** */ + +/** + * scic_sds_request_default_start_handler() - + * @request: This is the struct sci_base_request object that is cast to the + * SCIC_SDS_IO_REQUEST_T object for which the start operation is requested. + * + * 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. enum sci_status + * SCI_FAILURE_INVALID_STATE + */ +enum sci_status scic_sds_request_default_start_handler( + struct sci_base_request *request) +{ + struct scic_sds_request *scic_request = + (struct scic_sds_request *)request; + + dev_warn(scic_to_dev(scic_request->owning_controller), + "%s: SCIC IO Request requested to start while in wrong " + "state %d\n", + __func__, + sci_base_state_machine_get_state( + &((struct scic_sds_request *)request)->parent.state_machine)); + + return SCI_FAILURE_INVALID_STATE; +} + +static enum sci_status scic_sds_request_default_abort_handler( + struct sci_base_request *request) +{ + struct scic_sds_request *scic_request = + (struct scic_sds_request *)request; + + dev_warn(scic_to_dev(scic_request->owning_controller), + "%s: SCIC IO Request requested to abort while in wrong " + "state %d\n", + __func__, + sci_base_state_machine_get_state( + &((struct scic_sds_request *)request)->parent.state_machine)); + + return SCI_FAILURE_INVALID_STATE; +} + +/** + * scic_sds_request_default_complete_handler() - + * @request: This is the struct sci_base_request object that is cast to the + * SCIC_SDS_IO_REQUEST_T object for which the start operation is requested. + * + * 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. enum sci_status + * SCI_FAILURE_INVALID_STATE + */ +enum sci_status scic_sds_request_default_complete_handler( + struct sci_base_request *request) +{ + struct scic_sds_request *scic_request = + (struct scic_sds_request *)request; + + dev_warn(scic_to_dev(scic_request->owning_controller), + "%s: SCIC IO Request requested to complete while in wrong " + "state %d\n", + __func__, + sci_base_state_machine_get_state( + &((struct scic_sds_request *)request)->parent.state_machine)); + + return SCI_FAILURE_INVALID_STATE; +} + +/** + * scic_sds_request_default_destruct_handler() - + * @request: This is the struct sci_base_request object that is cast to the + * SCIC_SDS_IO_REQUEST_T object for which the start operation is requested. + * + * 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. enum sci_status + * SCI_FAILURE_INVALID_STATE + */ +enum sci_status scic_sds_request_default_destruct_handler( + struct sci_base_request *request) +{ + struct scic_sds_request *scic_request = + (struct scic_sds_request *)request; + + dev_warn(scic_to_dev(scic_request->owning_controller), + "%s: SCIC IO Request requested to destroy while in wrong " + "state %d\n", + __func__, + sci_base_state_machine_get_state( + &((struct scic_sds_request *)request)->parent.state_machine)); + + return SCI_FAILURE_INVALID_STATE; +} + +/** + * scic_sds_request_default_tc_completion_handler() - + * @request: This is the struct sci_base_request object that is cast to the + * SCIC_SDS_IO_REQUEST_T object for which the start operation is requested. + * + * 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. enum sci_status + * SCI_FAILURE_INVALID_STATE + */ +enum sci_status scic_sds_request_default_tc_completion_handler( + struct scic_sds_request *this_request, + u32 completion_code) +{ + dev_warn(scic_to_dev(this_request->owning_controller), + "%s: SCIC IO Request given task completion notification %x " + "while in wrong state %d\n", + __func__, + completion_code, + sci_base_state_machine_get_state( + &this_request->parent.state_machine)); + + return SCI_FAILURE_INVALID_STATE; + +} + +/** + * scic_sds_request_default_event_handler() - + * @request: This is the struct sci_base_request object that is cast to the + * SCIC_SDS_IO_REQUEST_T object for which the start operation is requested. + * + * 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. enum sci_status + * SCI_FAILURE_INVALID_STATE + */ +enum sci_status scic_sds_request_default_event_handler( + struct scic_sds_request *this_request, + u32 event_code) +{ + dev_warn(scic_to_dev(this_request->owning_controller), + "%s: SCIC IO Request given event code notification %x while " + "in wrong state %d\n", + __func__, + event_code, + sci_base_state_machine_get_state( + &this_request->parent.state_machine)); + + return SCI_FAILURE_INVALID_STATE; +} + +/** + * scic_sds_request_default_frame_handler() - + * @request: This is the struct sci_base_request object that is cast to the + * SCIC_SDS_IO_REQUEST_T object for which the start operation is requested. + * + * 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. enum sci_status + * SCI_FAILURE_INVALID_STATE + */ +enum sci_status scic_sds_request_default_frame_handler( + struct scic_sds_request *this_request, + u32 frame_index) +{ + dev_warn(scic_to_dev(this_request->owning_controller), + "%s: SCIC IO Request given unexpected frame %x while in " + "state %d\n", + __func__, + 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 + * ***************************************************************************** */ + +/** + * scic_sds_request_constructed_state_start_handler() - + * @request: This is the struct sci_base_request object that is cast to the + * SCIC_SDS_IO_REQUEST_T object for which the start operation is requested. + * + * 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. enum sci_status + * SCI_SUCCESS SCI_FAILURE_INSUFFICIENT_RESOURCES + */ +static enum sci_status scic_sds_request_constructed_state_start_handler( + struct sci_base_request *request) +{ + struct scu_task_context *task_context; + struct scic_sds_request *this_request = (struct scic_sds_request *)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; +} + +/** + * scic_sds_request_constructed_state_abort_handler() - + * @request: This is the struct sci_base_request object that is cast to the + * SCIC_SDS_IO_REQUEST_T object for which the start operation is requested. + * + * 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. enum sci_status SCI_SUCCESS + */ +static enum sci_status scic_sds_request_constructed_state_abort_handler( + struct sci_base_request *request) +{ + struct scic_sds_request *this_request = (struct scic_sds_request *)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 + * ***************************************************************************** */ + +/** + * scic_sds_request_started_state_abort_handler() - + * @request: This is the struct sci_base_request object that is cast to the + * SCIC_SDS_IO_REQUEST_T object for which the start operation is requested. + * + * 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. enum sci_status SCI_SUCCESS + */ +enum sci_status scic_sds_request_started_state_abort_handler( + struct sci_base_request *request) +{ + struct scic_sds_request *this_request = (struct scic_sds_request *)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; +} + +/** + * scic_sds_request_started_state_tc_completion_handler() - 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. + * @this_request: This parameter specifies the request for which a completion + * occurred. + * @completion_code: This parameter specifies the completion code received from + * the SCU. + * + */ +enum sci_status scic_sds_request_started_state_tc_completion_handler( + struct scic_sds_request *this_request, + u32 completion_code) +{ + u8 data_present; + struct sci_ssp_response_iu *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. */ + struct sci_ssp_response_iu *response = (struct sci_ssp_response_iu *) + this_request->response_buffer; + scic_word_copy_with_swap( + this_request->response_buffer, + this_request->response_buffer, + sizeof(struct sci_ssp_response_iu) / 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(struct sci_ssp_response_iu) / 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 = + (struct sci_ssp_response_iu *)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_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_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_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; +} + +/** + * scic_sds_request_started_state_frame_handler() - + * @request: This is the struct sci_base_request object that is cast to the + * SCIC_SDS_IO_REQUEST_T object for which the start operation is requested. + * @frame_index: This is the index of the unsolicited frame to be processed. + * + * 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. enum sci_status SCI_SUCCESS SCI_FAILURE_INVALID_PARAMETER_VALUE + */ +static enum sci_status scic_sds_request_started_state_frame_handler( + struct scic_sds_request *this_request, + u32 frame_index) +{ + enum sci_status status; + struct sci_ssp_frame_header *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) { + struct sci_ssp_response_iu *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(struct sci_ssp_response_iu) + ); + + response_buffer = (struct sci_ssp_response_iu *)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? */ + dev_err(scic_to_dev(this_request->owning_controller), + "%s: SCIC IO Request 0x%p received unexpected " + "frame %d type 0x%02x\n", + __func__, + 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 + * ***************************************************************************** */ + + +/** + * scic_sds_request_completed_state_complete_handler() - + * @request: This is the struct sci_base_request object that is cast to the + * SCIC_SDS_IO_REQUEST_T object for which the start operation is requested. + * + * 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. Consider stopping the state machine instead of + * transitioning to the final state? enum sci_status SCI_SUCCESS + */ +static enum sci_status scic_sds_request_completed_state_complete_handler( + struct sci_base_request *request) +{ + struct scic_sds_request *this_request = (struct scic_sds_request *)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 + ); + + return SCI_SUCCESS; +} + +/* + * ***************************************************************************** + * * ABORTING STATE HANDLERS + * ***************************************************************************** */ + +/** + * scic_sds_request_aborting_state_abort_handler() - + * @request: This is the struct sci_base_request object that is cast to the + * SCIC_SDS_IO_REQUEST_T object for which the start operation is requested. + * + * 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. enum sci_status SCI_SUCCESS + */ +static enum sci_status scic_sds_request_aborting_state_abort_handler( + struct sci_base_request *request) +{ + struct scic_sds_request *this_request = (struct scic_sds_request *)request; + + sci_base_state_machine_change_state( + &this_request->parent.state_machine, + SCI_BASE_REQUEST_STATE_COMPLETED + ); + + return SCI_SUCCESS; +} + +/** + * scic_sds_request_aborting_state_tc_completion_handler() - + * @request: This is the struct sci_base_request object that is cast to the + * SCIC_SDS_IO_REQUEST_T object for which the start operation is requested. + * + * 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. enum sci_status SCI_SUCCESS + */ +static enum sci_status scic_sds_request_aborting_state_tc_completion_handler( + struct scic_sds_request *this_request, + u32 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; +} + +/** + * scic_sds_request_aborting_state_frame_handler() - + * @request: This is the struct sci_base_request object that is cast to the + * SCIC_SDS_IO_REQUEST_T object for which the start operation is requested. + * + * 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. enum sci_status SCI_SUCCESS + */ +static enum sci_status scic_sds_request_aborting_state_frame_handler( + struct scic_sds_request *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; +} + +/* --------------------------------------------------------------------------- */ + +const struct scic_sds_io_request_state_handler scic_sds_request_state_handler_table[] = { + [SCI_BASE_REQUEST_STATE_INITIAL] = { + .parent.start_handler = scic_sds_request_default_start_handler, + .parent.abort_handler = scic_sds_request_default_abort_handler, + .parent.complete_handler = scic_sds_request_default_complete_handler, + .parent.destruct_handler = scic_sds_request_default_destruct_handler, + .tc_completion_handler = scic_sds_request_default_tc_completion_handler, + .event_handler = scic_sds_request_default_event_handler, + .frame_handler = scic_sds_request_default_frame_handler, + }, + [SCI_BASE_REQUEST_STATE_CONSTRUCTED] = { + .parent.start_handler = scic_sds_request_constructed_state_start_handler, + .parent.abort_handler = scic_sds_request_constructed_state_abort_handler, + .parent.complete_handler = scic_sds_request_default_complete_handler, + .parent.destruct_handler = scic_sds_request_default_destruct_handler, + .tc_completion_handler = scic_sds_request_default_tc_completion_handler, + .event_handler = scic_sds_request_default_event_handler, + .frame_handler = scic_sds_request_default_frame_handler, + }, + [SCI_BASE_REQUEST_STATE_STARTED] = { + .parent.start_handler = scic_sds_request_default_start_handler, + .parent.abort_handler = scic_sds_request_started_state_abort_handler, + .parent.complete_handler = scic_sds_request_default_complete_handler, + .parent.destruct_handler = scic_sds_request_default_destruct_handler, + .tc_completion_handler = scic_sds_request_started_state_tc_completion_handler, + .event_handler = scic_sds_request_default_event_handler, + .frame_handler = scic_sds_request_started_state_frame_handler, + }, + [SCI_BASE_REQUEST_STATE_COMPLETED] = { + .parent.start_handler = scic_sds_request_default_start_handler, + .parent.abort_handler = scic_sds_request_default_abort_handler, + .parent.complete_handler = scic_sds_request_completed_state_complete_handler, + .parent.destruct_handler = scic_sds_request_default_destruct_handler, + .tc_completion_handler = scic_sds_request_default_tc_completion_handler, + .event_handler = scic_sds_request_default_event_handler, + .frame_handler = scic_sds_request_default_frame_handler, + }, + [SCI_BASE_REQUEST_STATE_ABORTING] = { + .parent.start_handler = scic_sds_request_default_start_handler, + .parent.abort_handler = scic_sds_request_aborting_state_abort_handler, + .parent.complete_handler = scic_sds_request_default_complete_handler, + .parent.destruct_handler = scic_sds_request_default_destruct_handler, + .tc_completion_handler = scic_sds_request_aborting_state_tc_completion_handler, + .event_handler = scic_sds_request_default_event_handler, + .frame_handler = scic_sds_request_aborting_state_frame_handler, + }, + [SCI_BASE_REQUEST_STATE_FINAL] = { + .parent.start_handler = scic_sds_request_default_start_handler, + .parent.abort_handler = scic_sds_request_default_abort_handler, + .parent.complete_handler = scic_sds_request_default_complete_handler, + .parent.destruct_handler = scic_sds_request_default_destruct_handler, + .tc_completion_handler = scic_sds_request_default_tc_completion_handler, + .event_handler = scic_sds_request_default_event_handler, + .frame_handler = scic_sds_request_default_frame_handler, + }, +}; + +/** + * scic_sds_request_initial_state_enter() - + * @object: This parameter specifies the base object for which the state + * transition is occurring. + * + * 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. none + */ +static void scic_sds_request_initial_state_enter( + struct sci_base_object *object) +{ + struct scic_sds_request *this_request = (struct scic_sds_request *)object; + + SET_STATE_HANDLER( + this_request, + scic_sds_request_state_handler_table, + SCI_BASE_REQUEST_STATE_INITIAL + ); +} + +/** + * scic_sds_request_constructed_state_enter() - + * @object: The io request object that is to enter the constructed state. + * + * 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. none + */ +static void scic_sds_request_constructed_state_enter( + struct sci_base_object *object) +{ + struct scic_sds_request *this_request = (struct scic_sds_request *)object; + + SET_STATE_HANDLER( + this_request, + scic_sds_request_state_handler_table, + SCI_BASE_REQUEST_STATE_CONSTRUCTED + ); +} + +/** + * scic_sds_request_started_state_enter() - + * @object: This parameter specifies the base object for which the state + * transition is occuring. This is cast into a SCIC_SDS_IO_REQUEST object. + * + * 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. none + */ +static void scic_sds_request_started_state_enter( + struct sci_base_object *object) +{ + struct scic_sds_request *this_request = (struct scic_sds_request *)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); +} + +/** + * scic_sds_request_started_state_exit() - + * @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. + * + * 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. none + */ +static void scic_sds_request_started_state_exit( + struct sci_base_object *object) +{ + struct scic_sds_request *this_request = (struct scic_sds_request *)object; + + if (this_request->has_started_substate_machine == true) + sci_base_state_machine_stop(&this_request->started_substate_machine); +} + +/** + * scic_sds_request_completed_state_enter() - + * @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. + * + * 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 enum sci_status to return in the + * completion callback function. none + */ +static void scic_sds_request_completed_state_enter( + struct sci_base_object *object) +{ + struct scic_sds_request *this_request = (struct scic_sds_request *)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 + ); + } +} + +/** + * scic_sds_request_aborting_state_enter() - + * @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. + * + * This method implements the actions taken when entering the + * SCI_BASE_REQUEST_STATE_ABORTING state. none + */ +static void scic_sds_request_aborting_state_enter( + struct sci_base_object *object) +{ + struct scic_sds_request *this_request = (struct scic_sds_request *)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 + ); +} + +/** + * scic_sds_request_final_state_enter() - + * @object: This parameter specifies the base object for which the state + * transition is occuring. This is cast into a SCIC_SDS_IO_REQUEST object. + * + * 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. none + */ +static void scic_sds_request_final_state_enter( + struct sci_base_object *object) +{ + struct scic_sds_request *this_request = (struct scic_sds_request *)object; + + SET_STATE_HANDLER( + this_request, + scic_sds_request_state_handler_table, + SCI_BASE_REQUEST_STATE_FINAL + ); +} + +/* --------------------------------------------------------------------------- */ + +const struct sci_base_state scic_sds_request_state_table[] = { + [SCI_BASE_REQUEST_STATE_INITIAL] = { + .enter_state = scic_sds_request_initial_state_enter, + }, + [SCI_BASE_REQUEST_STATE_CONSTRUCTED] = { + .enter_state = scic_sds_request_constructed_state_enter, + }, + [SCI_BASE_REQUEST_STATE_STARTED] = { + .enter_state = scic_sds_request_started_state_enter, + .exit_state = scic_sds_request_started_state_exit + }, + [SCI_BASE_REQUEST_STATE_COMPLETED] = { + .enter_state = scic_sds_request_completed_state_enter, + }, + [SCI_BASE_REQUEST_STATE_ABORTING] = { + .enter_state = scic_sds_request_aborting_state_enter, + }, + [SCI_BASE_REQUEST_STATE_FINAL] = { + .enter_state = scic_sds_request_final_state_enter, + }, +}; + |