diff options
Diffstat (limited to 'drivers/scsi/isci/core/scic_sds_stp_packet_request.c')
| -rw-r--r-- | drivers/scsi/isci/core/scic_sds_stp_packet_request.c | 838 |
1 files changed, 838 insertions, 0 deletions
diff --git a/drivers/scsi/isci/core/scic_sds_stp_packet_request.c b/drivers/scsi/isci/core/scic_sds_stp_packet_request.c new file mode 100644 index 000000000000..f52a8e32b48f --- /dev/null +++ b/drivers/scsi/isci/core/scic_sds_stp_packet_request.c @@ -0,0 +1,838 @@ +/* + * 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. + */ +#if !defined(DISABLE_ATAPI) + +#include "intel_ata.h" +#include "intel_sas.h" +#include "intel_sata.h" +#include "intel_sat.h" +#include "sati_translator_sequence.h" +#include "sci_base_state.h" +#include "scic_controller.h" +#include "scic_remote_device.h" +#include "scic_sds_controller.h" +#include "scic_sds_remote_device.h" +#include "scic_sds_request.h" +#include "scic_sds_stp_packet_request.h" +#include "scic_user_callback.h" +#include "sci_util.h" +#include "scu_completion_codes.h" +#include "scu_task_context.h" + + +/** + * This method will fill in the SCU Task Context for a PACKET fis. And + * construct the request STARTED sub-state machine for Packet Protocol IO. + * @this_request: This parameter specifies the stp packet request object being + * constructed. + * + */ +enum sci_status scic_sds_stp_packet_request_construct( + struct scic_sds_request *this_request) +{ + struct sata_fis_reg_h2d *h2d_fis = + scic_stp_io_request_get_h2d_reg_address( + this_request + ); + + /* + * Work around, we currently only support PACKET DMA protocol, so we + * need to make change to Packet Fis features field. */ + h2d_fis->features = h2d_fis->features | ATA_PACKET_FEATURE_DMA; + + scic_sds_stp_non_ncq_request_construct(this_request); + + /* Build the Packet Fis task context structure */ + scu_stp_raw_request_construct_task_context( + (struct scic_sds_stp_request *)this_request, + this_request->task_context_buffer + ); + + sci_base_state_machine_construct( + &this_request->started_substate_machine, + &this_request->parent.parent, + scic_sds_stp_packet_request_started_substate_table, + SCIC_SDS_STP_PACKET_REQUEST_STARTED_PACKET_PHASE_AWAIT_TC_COMPLETION_SUBSTATE + ); + + return SCI_SUCCESS; +} + + +/** + * This method will fill in the SCU Task Context for a Packet request command + * phase in PACKET DMA DATA (IN/OUT) type. The following important settings + * are utilized: -# task_type == SCU_TASK_TYPE_PACKET_DMA. 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 smp request frame. + * @this_request: This parameter specifies the smp request object being + * constructed. + * @task_context: The task_context to be reconstruct for packet request command + * phase. + * + */ +void scu_stp_packet_request_command_phase_construct_task_context( + struct scic_sds_request *this_request, + struct scu_task_context *task_context) +{ + void *atapi_cdb; + u32 atapi_cdb_length; + struct scic_sds_stp_request *stp_request = (struct scic_sds_stp_request *)this_request; + + /* + * reference: SSTL 1.13.4.2 + * task_type, sata_direction */ + if (scic_cb_io_request_get_data_direction(this_request->user_request) + == SCI_IO_REQUEST_DATA_OUT) { + task_context->task_type = SCU_TASK_TYPE_PACKET_DMA_OUT; + task_context->sata_direction = 0; + } else { /* todo: for NO_DATA command, we need to send out raw frame. */ + task_context->task_type = SCU_TASK_TYPE_PACKET_DMA_IN; + task_context->sata_direction = 1; + } + + /* sata header */ + memset(&(task_context->type.stp), 0, sizeof(struct STP_TASK_CONTEXT)); + task_context->type.stp.fis_type = SATA_FIS_TYPE_DATA; + + /* + * Copy in the command IU with CDB so that the commandIU address doesn't + * change. */ + memset(this_request->command_buffer, 0, sizeof(struct sata_fis_reg_h2d)); + + atapi_cdb = + scic_cb_stp_packet_io_request_get_cdb_address(this_request->user_request); + + atapi_cdb_length = + scic_cb_stp_packet_io_request_get_cdb_length(this_request->user_request); + + memcpy(((u8 *)this_request->command_buffer + sizeof(u32)), atapi_cdb, atapi_cdb_length); + + atapi_cdb_length = + max(atapi_cdb_length, stp_request->type.packet.device_preferred_cdb_length); + + task_context->ssp_command_iu_length = + ((atapi_cdb_length % 4) == 0) ? + (atapi_cdb_length / 4) : ((atapi_cdb_length / 4) + 1); + + /* task phase is set to TX_CMD */ + task_context->task_phase = 0x1; + + /* retry counter */ + task_context->stp_retry_count = 0; + + if (scic_cb_request_is_initial_construction(this_request->user_request)) { + /* data transfer size. */ + task_context->transfer_length_bytes = + scic_cb_io_request_get_transfer_length(this_request->user_request); + + /* setup sgl */ + scic_sds_request_build_sgl(this_request); + } else { + /* data transfer size, need to be 4 bytes aligned. */ + task_context->transfer_length_bytes = (SCSI_FIXED_SENSE_DATA_BASE_LENGTH + 2); + + scic_sds_stp_packet_internal_request_sense_build_sgl(this_request); + } +} + +/** + * This method will fill in the SCU Task Context for a DATA fis containing CDB + * in Raw Frame type. The TC for previous Packet fis was already there, we + * only need to change the H2D fis content. + * @this_request: This parameter specifies the smp request object being + * constructed. + * @task_context: The task_context to be reconstruct for packet request command + * phase. + * + */ +void scu_stp_packet_request_command_phase_reconstruct_raw_frame_task_context( + struct scic_sds_request *this_request, + struct scu_task_context *task_context) +{ + void *atapi_cdb = + scic_cb_stp_packet_io_request_get_cdb_address(this_request->user_request); + + u32 atapi_cdb_length = + scic_cb_stp_packet_io_request_get_cdb_length(this_request->user_request); + + memset(this_request->command_buffer, 0, sizeof(struct sata_fis_reg_h2d)); + memcpy(((u8 *)this_request->command_buffer + sizeof(u32)), atapi_cdb, atapi_cdb_length); + + memset(&(task_context->type.stp), 0, sizeof(struct STP_TASK_CONTEXT)); + task_context->type.stp.fis_type = SATA_FIS_TYPE_DATA; + + /* + * Note the data send out has to be 4 bytes aligned. Or else out hardware will + * patch non-zero bytes and cause the target device unhappy. */ + task_context->transfer_length_bytes = 12; +} + + +/* + * *@brief This methods decode the D2H status FIS and retrieve the sense data, + * then pass the sense data to user request. + * + ***@param[in] this_request The request receive D2H status FIS. + ***@param[in] status_fis The D2H status fis to be processed. + * + */ +enum sci_status scic_sds_stp_packet_request_process_status_fis( + struct scic_sds_request *this_request, + struct sata_fis_reg_d2h *status_fis) +{ + enum sci_status status = SCI_SUCCESS; + + /* TODO: Process the error status fis, retrieve sense data. */ + if (status_fis->status & ATA_STATUS_REG_ERROR_BIT) + status = SCI_FAILURE_IO_RESPONSE_VALID; + + return status; +} + +/* + * *@brief This methods builds sgl for internal REQUEST SENSE stp packet + * command using this request response buffer, only one sge is + * needed. + * + ***@param[in] this_request The request receive request sense data. + * + */ +void scic_sds_stp_packet_internal_request_sense_build_sgl( + struct scic_sds_request *this_request) +{ + void *sge; + struct scu_sgl_element_pair *scu_sgl_list = NULL; + struct scu_task_context *task_context; + dma_addr_t physical_address; + + struct sci_ssp_response_iu *rsp_iu = + (struct sci_ssp_response_iu *)this_request->response_buffer; + + sge = (void *)&rsp_iu->data[0]; + + task_context = (struct scu_task_context *)this_request->task_context_buffer; + scu_sgl_list = &task_context->sgl_pair_ab; + + scic_cb_io_request_get_physical_address( + scic_sds_request_get_controller(this_request), + this_request, + ((char *)sge), + &physical_address + ); + + scu_sgl_list->A.address_upper = sci_cb_physical_address_upper(physical_address); + scu_sgl_list->A.address_lower = sci_cb_physical_address_lower(physical_address); + scu_sgl_list->A.length = task_context->transfer_length_bytes; + scu_sgl_list->A.address_modifier = 0; + + SCU_SGL_ZERO(scu_sgl_list->B); +} + +/** + * This method processes the completions transport layer (TL) status to + * determine if the Packet FIS was sent successfully. If the Packet FIS was + * sent successfully, then the state for the Packet request transits to + * waiting for a PIO SETUP frame. + * @this_request: This parameter specifies the request for which the TC + * completion was received. + * @completion_code: This parameter indicates the completion status information + * for the TC. + * + * Indicate if the tc completion handler was successful. SCI_SUCCESS currently + * this method always returns success. + */ +enum sci_status scic_sds_stp_packet_request_packet_phase_await_tc_completion_tc_completion_handler( + struct scic_sds_request *this_request, + u32 completion_code) +{ + enum sci_status status = SCI_SUCCESS; + + switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { + case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): + scic_sds_request_set_status( + this_request, SCU_TASK_DONE_GOOD, SCI_SUCCESS + ); + + sci_base_state_machine_change_state( + &this_request->started_substate_machine, + SCIC_SDS_STP_PACKET_REQUEST_STARTED_PACKET_PHASE_AWAIT_PIO_SETUP_SUBSTATE + ); + break; + + default: + /* + * All other completion status cause the IO to be complete. If a NAK + * was received, then it is up to the user to retry the request. */ + scic_sds_request_set_status( + this_request, + SCU_NORMALIZE_COMPLETION_STATUS(completion_code), + SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR + ); + + sci_base_state_machine_change_state( + &this_request->parent.state_machine, + SCI_BASE_REQUEST_STATE_COMPLETED + ); + break; + } + + return status; +} + + +/** + * This method processes an unsolicited frame while the Packet request is + * waiting for a PIO SETUP FIS. It will release the unsolicited frame, and + * transition the request to the COMMAND_PHASE_AWAIT_TC_COMPLETION_SUBSTATE + * state. + * @this_request: This parameter specifies the request for which the + * unsolicited frame was received. + * @frame_index: This parameter indicates the unsolicited frame index that + * should contain the response. + * + * This method returns an indication of whether the pio setup frame was handled + * successfully or not. SCI_SUCCESS Currently this value is always returned and + * indicates successful processing of the TC response. + */ +enum sci_status scic_sds_stp_packet_request_packet_phase_await_pio_setup_frame_handler( + struct scic_sds_request *request, + u32 frame_index) +{ + enum sci_status status; + struct sata_fis_header *frame_header; + u32 *frame_buffer; + struct scic_sds_stp_request *this_request; + + this_request = (struct scic_sds_stp_request *)request; + + status = scic_sds_unsolicited_frame_control_get_header( + &(this_request->parent.owning_controller->uf_control), + frame_index, + (void **)&frame_header + ); + + if (status == SCI_SUCCESS) { + BUG_ON(frame_header->fis_type != SATA_FIS_TYPE_PIO_SETUP); + + /* + * Get from the frame buffer the PIO Setup Data, although we don't need + * any info from this pio setup fis. */ + scic_sds_unsolicited_frame_control_get_buffer( + &(this_request->parent.owning_controller->uf_control), + frame_index, + (void **)&frame_buffer + ); + + /* + * Get the data from the PIO Setup + * The SCU Hardware returns first word in the frame_header and the rest + * of the data is in the frame buffer so we need to back up one dword */ + this_request->type.packet.device_preferred_cdb_length = + (u16)((struct sata_fis_pio_setup *)(&frame_buffer[-1]))->transfter_count; + + /* Frame has been decoded return it to the controller */ + scic_sds_controller_release_frame( + this_request->parent.owning_controller, frame_index + ); + + sci_base_state_machine_change_state( + &this_request->parent.started_substate_machine, + SCIC_SDS_STP_PACKET_REQUEST_STARTED_COMMAND_PHASE_AWAIT_TC_COMPLETION_SUBSTATE + ); + } else + dev_err(scic_to_dev(request->owning_controller), + "%s: SCIC IO Request 0x%p could not get frame header " + "for frame index %d, status %x\n", + __func__, this_request, frame_index, status); + + return status; +} + + +/** + * This method processes the completions transport layer (TL) status to + * determine if the PACKET command data FIS was sent successfully. If + * successfully, then the state for the packet request transits to COMPLETE + * state. If not successfuly, the request transits to + * COMMAND_PHASE_AWAIT_D2H_FIS_SUBSTATE. + * @this_request: This parameter specifies the request for which the TC + * completion was received. + * @completion_code: This parameter indicates the completion status information + * for the TC. + * + * Indicate if the tc completion handler was successful. SCI_SUCCESS currently + * this method always returns success. + */ +enum sci_status scic_sds_stp_packet_request_command_phase_await_tc_completion_tc_completion_handler( + struct scic_sds_request *this_request, + u32 completion_code) +{ + enum sci_status status = SCI_SUCCESS; + u8 sat_packet_protocol = + scic_cb_request_get_sat_protocol(this_request->user_request); + + switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { + case (SCU_TASK_DONE_GOOD << SCU_COMPLETION_TL_STATUS_SHIFT): + scic_sds_request_set_status( + this_request, SCU_TASK_DONE_GOOD, SCI_SUCCESS + ); + + if (sat_packet_protocol == SAT_PROTOCOL_PACKET_DMA_DATA_IN + || sat_packet_protocol == SAT_PROTOCOL_PACKET_DMA_DATA_OUT + ) + sci_base_state_machine_change_state( + &this_request->parent.state_machine, + SCI_BASE_REQUEST_STATE_COMPLETED + ); + else + sci_base_state_machine_change_state( + &this_request->started_substate_machine, + SCIC_SDS_STP_PACKET_REQUEST_STARTED_COMMAND_PHASE_AWAIT_D2H_FIS_SUBSTATE + ); + break; + + case (SCU_TASK_DONE_UNEXP_FIS << SCU_COMPLETION_TL_STATUS_SHIFT): + if (scic_io_request_get_number_of_bytes_transferred(this_request) < + scic_cb_io_request_get_transfer_length(this_request->user_request)) { + scic_sds_request_set_status( + this_request, SCU_TASK_DONE_GOOD, SCI_SUCCESS_IO_DONE_EARLY + ); + + sci_base_state_machine_change_state( + &this_request->parent.state_machine, + SCI_BASE_REQUEST_STATE_COMPLETED + ); + + status = this_request->sci_status; + } + break; + + case (SCU_TASK_DONE_EXCESS_DATA << SCU_COMPLETION_TL_STATUS_SHIFT): + /* In this case, there is no UF coming after. compelte the IO now. */ + scic_sds_request_set_status( + this_request, SCU_TASK_DONE_GOOD, SCI_SUCCESS + ); + + sci_base_state_machine_change_state( + &this_request->parent.state_machine, + SCI_BASE_REQUEST_STATE_COMPLETED + ); + + break; + + default: + if (this_request->sci_status != SCI_SUCCESS) { /* The io status was set already. This means an UF for the status + * fis was received already. + */ + + /* + * A device suspension event is expected, we need to have the device + * coming out of suspension, then complete the IO. */ + sci_base_state_machine_change_state( + &this_request->started_substate_machine, + SCIC_SDS_STP_PACKET_REQUEST_STARTED_COMPLETION_DELAY_SUBSTATE + ); + + /* change the device state to ATAPI_ERROR. */ + sci_base_state_machine_change_state( + &this_request->target_device->ready_substate_machine, + SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_ATAPI_ERROR + ); + + status = this_request->sci_status; + } else { /* If receiving any non-sucess TC status, no UF received yet, then an UF for + * the status fis is coming after. + */ + scic_sds_request_set_status( + this_request, + SCU_TASK_DONE_CHECK_RESPONSE, + SCI_FAILURE_IO_RESPONSE_VALID + ); + + sci_base_state_machine_change_state( + &this_request->started_substate_machine, + SCIC_SDS_STP_PACKET_REQUEST_STARTED_COMMAND_PHASE_AWAIT_D2H_FIS_SUBSTATE + ); + } + break; + } + + return status; +} + + +/** + * This method processes an unsolicited frame. + * @this_request: This parameter specifies the request for which the + * unsolicited frame was received. + * @frame_index: This parameter indicates the unsolicited frame index that + * should contain the response. + * + * This method returns an indication of whether the UF frame was handled + * successfully or not. SCI_SUCCESS Currently this value is always returned and + * indicates successful processing of the TC response. + */ +enum sci_status scic_sds_stp_packet_request_command_phase_common_frame_handler( + struct scic_sds_request *request, + u32 frame_index) +{ + enum sci_status status; + struct sata_fis_header *frame_header; + u32 *frame_buffer; + struct scic_sds_stp_request *this_request; + + this_request = (struct scic_sds_stp_request *)request; + + status = scic_sds_unsolicited_frame_control_get_header( + &(this_request->parent.owning_controller->uf_control), + frame_index, + (void **)&frame_header + ); + + if (status == SCI_SUCCESS) { + BUG_ON(frame_header->fis_type != SATA_FIS_TYPE_REGD2H); + + /* + * Get from the frame buffer the PIO Setup Data, although we don't need + * any info from this pio setup fis. */ + scic_sds_unsolicited_frame_control_get_buffer( + &(this_request->parent.owning_controller->uf_control), + frame_index, + (void **)&frame_buffer + ); + + scic_sds_controller_copy_sata_response( + &this_request->d2h_reg_fis, (u32 *)frame_header, frame_buffer + ); + + /* Frame has been decoded return it to the controller */ + scic_sds_controller_release_frame( + this_request->parent.owning_controller, frame_index + ); + } + + return status; +} + +/** + * This method processes an unsolicited frame while the packet request is + * expecting TC completion. It will process the FIS and construct sense data. + * @this_request: This parameter specifies the request for which the + * unsolicited frame was received. + * @frame_index: This parameter indicates the unsolicited frame index that + * should contain the response. + * + * This method returns an indication of whether the UF frame was handled + * successfully or not. SCI_SUCCESS Currently this value is always returned and + * indicates successful processing of the TC response. + */ +enum sci_status scic_sds_stp_packet_request_command_phase_await_tc_completion_frame_handler( + struct scic_sds_request *request, + u32 frame_index) +{ + struct scic_sds_stp_request *this_request = (struct scic_sds_stp_request *)request; + + enum sci_status status = + scic_sds_stp_packet_request_command_phase_common_frame_handler( + request, frame_index); + + if (status == SCI_SUCCESS) { + /* The command has completed with error status from target device. */ + status = scic_sds_stp_packet_request_process_status_fis( + request, &this_request->d2h_reg_fis); + + if (status != SCI_SUCCESS) { + scic_sds_request_set_status( + &this_request->parent, + SCU_TASK_DONE_CHECK_RESPONSE, + status + ); + } else + scic_sds_request_set_status( + &this_request->parent, SCU_TASK_DONE_GOOD, SCI_SUCCESS + ); + } + + return status; +} + + +/** + * This method processes an unsolicited frame while the packet request is + * expecting TC completion. It will process the FIS and construct sense data. + * @this_request: This parameter specifies the request for which the + * unsolicited frame was received. + * @frame_index: This parameter indicates the unsolicited frame index that + * should contain the response. + * + * This method returns an indication of whether the UF frame was handled + * successfully or not. SCI_SUCCESS Currently this value is always returned and + * indicates successful processing of the TC response. + */ +enum sci_status scic_sds_stp_packet_request_command_phase_await_d2h_fis_frame_handler( + struct scic_sds_request *request, + u32 frame_index) +{ + enum sci_status status = + scic_sds_stp_packet_request_command_phase_common_frame_handler( + request, frame_index); + + struct scic_sds_stp_request *this_request = (struct scic_sds_stp_request *)request; + + if (status == SCI_SUCCESS) { + /* The command has completed with error status from target device. */ + status = scic_sds_stp_packet_request_process_status_fis( + request, &this_request->d2h_reg_fis); + + if (status != SCI_SUCCESS) { + scic_sds_request_set_status( + request, + SCU_TASK_DONE_CHECK_RESPONSE, + status + ); + } else + scic_sds_request_set_status( + request, SCU_TASK_DONE_GOOD, SCI_SUCCESS + ); + + /* + * Always complete the NON_DATA command right away, no need to delay completion + * even an error status fis came from target device. */ + sci_base_state_machine_change_state( + &request->parent.state_machine, + SCI_BASE_REQUEST_STATE_COMPLETED + ); + } + + return status; +} + +enum sci_status scic_sds_stp_packet_request_started_completion_delay_complete_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 this_request->sci_status; +} + +/* --------------------------------------------------------------------------- */ + +const struct scic_sds_io_request_state_handler scic_sds_stp_packet_request_started_substate_handler_table[] = { + [SCIC_SDS_STP_PACKET_REQUEST_STARTED_PACKET_PHASE_AWAIT_TC_COMPLETION_SUBSTATE] = { + .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_stp_packet_request_packet_phase_await_tc_completion_tc_completion_handler, + .event_handler = scic_sds_request_default_event_handler, + .frame_handler = scic_sds_request_default_frame_handler + }, + [SCIC_SDS_STP_PACKET_REQUEST_STARTED_PACKET_PHASE_AWAIT_PIO_SETUP_SUBSTATE] = { + .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_default_tc_completion_handler, + .event_handler = scic_sds_request_default_event_handler, + .frame_handler = scic_sds_stp_packet_request_packet_phase_await_pio_setup_frame_handler + }, + [SCIC_SDS_STP_PACKET_REQUEST_STARTED_COMMAND_PHASE_AWAIT_TC_COMPLETION_SUBSTATE] = { + .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_stp_packet_request_command_phase_await_tc_completion_tc_completion_handler, + .event_handler = scic_sds_request_default_event_handler, + .frame_handler = scic_sds_stp_packet_request_command_phase_await_tc_completion_frame_handler + }, + [SCIC_SDS_STP_PACKET_REQUEST_STARTED_COMMAND_PHASE_AWAIT_D2H_FIS_SUBSTATE] = { + .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_default_tc_completion_handler, + .event_handler = scic_sds_request_default_event_handler, + .frame_handler = scic_sds_stp_packet_request_command_phase_await_d2h_fis_frame_handler + }, + [SCIC_SDS_STP_PACKET_REQUEST_STARTED_COMPLETION_DELAY_SUBSTATE] = { + .parent.start_handler = scic_sds_request_default_start_handler, + .parent.abort_handler = scic_sds_request_started_state_abort_handler, + .parent.complete_handler = scic_sds_stp_packet_request_started_completion_delay_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 + }, +}; + +void scic_sds_stp_packet_request_started_packet_phase_await_tc_completion_enter( + struct sci_base_object *object) +{ + struct scic_sds_request *this_request = (struct scic_sds_request *)object; + + SET_STATE_HANDLER( + this_request, + scic_sds_stp_packet_request_started_substate_handler_table, + SCIC_SDS_STP_PACKET_REQUEST_STARTED_PACKET_PHASE_AWAIT_TC_COMPLETION_SUBSTATE + ); + + scic_sds_remote_device_set_working_request( + this_request->target_device, this_request + ); +} + +void scic_sds_stp_packet_request_started_packet_phase_await_pio_setup_enter( + struct sci_base_object *object) +{ + struct scic_sds_request *this_request = (struct scic_sds_request *)object; + + SET_STATE_HANDLER( + this_request, + scic_sds_stp_packet_request_started_substate_handler_table, + SCIC_SDS_STP_PACKET_REQUEST_STARTED_PACKET_PHASE_AWAIT_PIO_SETUP_SUBSTATE + ); +} + +void scic_sds_stp_packet_request_started_command_phase_await_tc_completion_enter( + struct sci_base_object *object) +{ + struct scic_sds_request *this_request = (struct scic_sds_request *)object; + u8 sat_packet_protocol = + scic_cb_request_get_sat_protocol(this_request->user_request); + + struct scu_task_context *task_context; + enum sci_status status; + + /* + * Recycle the TC and reconstruct it for sending out data fis containing + * CDB. */ + task_context = scic_sds_controller_get_task_context_buffer( + this_request->owning_controller, this_request->io_tag); + + if (sat_packet_protocol == SAT_PROTOCOL_PACKET_NON_DATA) + scu_stp_packet_request_command_phase_reconstruct_raw_frame_task_context( + this_request, task_context); + else + scu_stp_packet_request_command_phase_construct_task_context( + this_request, task_context); + + /* send the new TC out. */ + status = this_request->owning_controller->state_handlers->parent.continue_io_handler( + &this_request->owning_controller->parent, + &this_request->target_device->parent, + &this_request->parent + ); + + if (status == SCI_SUCCESS) + SET_STATE_HANDLER( + this_request, + scic_sds_stp_packet_request_started_substate_handler_table, + SCIC_SDS_STP_PACKET_REQUEST_STARTED_COMMAND_PHASE_AWAIT_TC_COMPLETION_SUBSTATE + ); +} + +void scic_sds_stp_packet_request_started_command_phase_await_d2h_fis_enter( + struct sci_base_object *object) +{ + struct scic_sds_request *this_request = (struct scic_sds_request *)object; + + SET_STATE_HANDLER( + this_request, + scic_sds_stp_packet_request_started_substate_handler_table, + SCIC_SDS_STP_PACKET_REQUEST_STARTED_COMMAND_PHASE_AWAIT_D2H_FIS_SUBSTATE + ); +} + +void scic_sds_stp_packet_request_started_completion_delay_enter( + struct sci_base_object *object) +{ + struct scic_sds_request *this_request = (struct scic_sds_request *)object; + + SET_STATE_HANDLER( + this_request, + scic_sds_stp_packet_request_started_substate_handler_table, + SCIC_SDS_STP_PACKET_REQUEST_STARTED_COMPLETION_DELAY_SUBSTATE + ); +} + + +/* --------------------------------------------------------------------------- */ +const struct sci_base_state scic_sds_stp_packet_request_started_substate_table[] = { + [SCIC_SDS_STP_PACKET_REQUEST_STARTED_PACKET_PHASE_AWAIT_TC_COMPLETION_SUBSTATE] = { + .enter_state = scic_sds_stp_packet_request_started_packet_phase_await_tc_completion_enter, + }, + [SCIC_SDS_STP_PACKET_REQUEST_STARTED_PACKET_PHASE_AWAIT_PIO_SETUP_SUBSTATE] = { + .enter_state = scic_sds_stp_packet_request_started_packet_phase_await_pio_setup_enter, + }, + [SCIC_SDS_STP_PACKET_REQUEST_STARTED_COMMAND_PHASE_AWAIT_TC_COMPLETION_SUBSTATE] = { + .enter_state = scic_sds_stp_packet_request_started_command_phase_await_tc_completion_enter, + }, + [SCIC_SDS_STP_PACKET_REQUEST_STARTED_COMMAND_PHASE_AWAIT_D2H_FIS_SUBSTATE] = { + .enter_state = scic_sds_stp_packet_request_started_command_phase_await_d2h_fis_enter, + }, + [SCIC_SDS_STP_PACKET_REQUEST_STARTED_COMPLETION_DELAY_SUBSTATE] = { + .enter_state scic_sds_stp_packet_request_started_completion_delay_enter, + } +}; + +#endif /* !defined(DISABLE_ATAPI) */ |