/*- * This file is provided under a dual BSD/GPLv2 license. When using or * redistributing this file, you may do so under either license. * * GPL LICENSE SUMMARY * * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. * The full GNU General Public License is included in this distribution * in the file called LICENSE.GPL. * * BSD LICENSE * * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include __FBSDID("$FreeBSD$"); /** * @file * * @brief This file contains the method implementations for the * SCIF_SAS_STP_IO_REQUEST object. The contents will implement * SATA/STP specific functionality. */ #include #include #include #include #include #include #include #include #include #include #include //****************************************************************************** // P R I V A T E M E T H O D S //****************************************************************************** /** * @brief This method provides SATA/STP CONSTRUCTED state specific handling * for when the user attempts to start the supplied IO request. It * will allocate NCQ tags if necessary. * * @param[in] io_request This parameter specifies the IO request object * to be started. * * @return This method returns a value indicating if the IO request was * successfully started or not. * @retval SCI_SUCCESS This return value indicates successful starting * of the IO request. */ static SCI_STATUS scif_sas_stp_io_request_constructed_start_handler( SCI_BASE_REQUEST_T * io_request ) { SCIF_SAS_IO_REQUEST_T * fw_io = (SCIF_SAS_IO_REQUEST_T *) io_request; SCIF_LOG_TRACE(( sci_base_object_get_logger(io_request), SCIF_LOG_OBJECT_IO_REQUEST, "scif_sas_stp_io_request_constructed_start_handler(0x%x) enter\n", io_request )); if (fw_io->parent.stp.sequence.protocol == SAT_PROTOCOL_FPDMA) { SATA_FIS_REG_H2D_T * fis; // For NCQ, we need to attempt to allocate an available tag. fw_io->parent.stp.ncq_tag = scif_sas_stp_remote_device_allocate_ncq_tag( fw_io->parent.device ); if (fw_io->parent.stp.ncq_tag == SCIF_SAS_INVALID_NCQ_TAG) return SCI_FAILURE_NO_NCQ_TAG_AVAILABLE; // Set the NCQ tag in the host to device register FIS (upper 5 bits // of the 8-bit sector count register). fis = scic_stp_io_request_get_h2d_reg_address(fw_io->parent.core_object); fis->sector_count = (fw_io->parent.stp.ncq_tag << 3); // The Core also requires that we inform it separately regarding the // NCQ tag for this IO. scic_stp_io_request_set_ncq_tag( fw_io->parent.core_object, fw_io->parent.stp.ncq_tag ); } return SCI_SUCCESS; } /** * @brief This method provides SATA/STP CONSTRUCTED state specific handling * for when the user attempts to complete the supplied IO request. * This method will be invoked in the event the call to start the * core IO request fails for some reason. In this situation, the * NCQ tag will be freed. * * @param[in] io_request This parameter specifies the IO request object * to be started. * * @return This method returns a value indicating if the IO request was * successfully started or not. * @retval SCI_SUCCESS This return value indicates successful starting * of the IO request. */ static SCI_STATUS scif_sas_stp_io_request_constructed_complete_handler( SCI_BASE_REQUEST_T * io_request ) { SCIF_SAS_IO_REQUEST_T * fw_io = (SCIF_SAS_IO_REQUEST_T *) io_request; SCIF_LOG_TRACE(( sci_base_object_get_logger(io_request), SCIF_LOG_OBJECT_IO_REQUEST, "scif_sas_stp_io_request_constructed_complete_handler(0x%x) enter\n", io_request )); if (fw_io->parent.stp.sequence.protocol == SAT_PROTOCOL_FPDMA) { // For NCQ, we need to return the tag back to the free pool. if (fw_io->parent.stp.ncq_tag != SCIF_SAS_INVALID_NCQ_TAG) scif_sas_stp_remote_device_free_ncq_tag( fw_io->parent.device, fw_io->parent.stp.ncq_tag ); } sati_sequence_terminate(&fw_io->parent.stp.sequence, fw_io, fw_io); return SCI_SUCCESS; } /** * @brief This method provides SATA/STP STARTED state specific handling for * when the user attempts to complete the supplied IO request. * It will perform data/response translation and free NCQ tags * if necessary. * * @param[in] io_request This parameter specifies the IO request object * to be started. * * @return This method returns a value indicating if the IO request was * successfully completed or not. */ static SCI_STATUS scif_sas_stp_core_cb_io_request_complete_handler( SCIF_SAS_CONTROLLER_T * fw_controller, SCIF_SAS_REMOTE_DEVICE_T * fw_device, SCIF_SAS_REQUEST_T * fw_request, SCI_STATUS * completion_status ) { SCIF_SAS_IO_REQUEST_T * fw_io = (SCIF_SAS_IO_REQUEST_T *) fw_request; SCIF_LOG_TRACE(( sci_base_object_get_logger(fw_controller), SCIF_LOG_OBJECT_IO_REQUEST, "scif_sas_stp_core_cb_io_request_complete_handler(0x%x, 0x%x, 0x%x, 0x%x) enter\n", fw_controller, fw_device, fw_request, *completion_status )); if (fw_io->parent.stp.sequence.protocol == SAT_PROTOCOL_FPDMA) scif_sas_stp_remote_device_free_ncq_tag( fw_request->device, fw_io->parent.stp.ncq_tag ); // Translating the response is only necessary if: // - some sort of error occurred resulting in having the error bit // set in the ATA status register and values to decode in the // ATA error register. // - the command returns information in the register FIS itself, // which requires translation. // - the request completed ok but the sequence requires a callback // to possibly continue the translation if ((*completion_status == SCI_FAILURE_IO_RESPONSE_VALID) || ((sati_cb_do_translate_response(fw_request)) && (*completion_status != SCI_FAILURE_IO_TERMINATED))) { SATI_STATUS sati_status = sati_translate_command_response( &fw_io->parent.stp.sequence, fw_io, fw_io ); if (sati_status == SATI_COMPLETE) *completion_status = SCI_SUCCESS; else if (sati_status == SATI_FAILURE_CHECK_RESPONSE_DATA) *completion_status = SCI_FAILURE_IO_RESPONSE_VALID; else if (sati_status == SATI_SEQUENCE_INCOMPLETE) { // The translation indicates that additional SATA requests are // necessary to finish the original SCSI request. As a result, // do not complete the IO and begin the next stage of the // translation. return SCI_WARNING_SEQUENCE_INCOMPLETE; } else if (sati_status == SATI_COMPLETE_IO_DONE_EARLY) *completion_status = SCI_SUCCESS_IO_DONE_EARLY; else { // Something unexpected occurred during translation. Fail the // IO request to the user. *completion_status = SCI_FAILURE; } } else if (*completion_status != SCI_SUCCESS) { SCIF_LOG_INFO(( sci_base_object_get_logger(fw_controller), SCIF_LOG_OBJECT_IO_REQUEST, "Sequence Terminated(0x%x, 0x%x, 0x%x)\n", fw_controller, fw_device, fw_request )); sati_sequence_terminate(&fw_io->parent.stp.sequence, fw_io, fw_io); } return SCI_SUCCESS; } #if !defined(DISABLE_ATAPI) /** * @brief This method provides STP PACKET io request STARTED state specific handling for * when the user attempts to complete the supplied IO request. * It will perform data/response translation. * * @param[in] io_request This parameter specifies the IO request object * to be started. * * @return This method returns a value indicating if the IO request was * successfully completed or not. */ static SCI_STATUS scif_sas_stp_core_cb_packet_io_request_complete_handler( SCIF_SAS_CONTROLLER_T * fw_controller, SCIF_SAS_REMOTE_DEVICE_T * fw_device, SCIF_SAS_REQUEST_T * fw_request, SCI_STATUS * completion_status ) { SCIF_SAS_IO_REQUEST_T * fw_io = (SCIF_SAS_IO_REQUEST_T *) fw_request; SATI_STATUS sati_status; SCIF_LOG_TRACE(( sci_base_object_get_logger(fw_controller), SCIF_LOG_OBJECT_IO_REQUEST, "scif_sas_stp_packet_core_cb_io_request_complete_handler(0x%x, 0x%x, 0x%x, 0x%x) enter\n", fw_controller, fw_device, fw_request, *completion_status )); if (*completion_status == SCI_FAILURE_IO_RESPONSE_VALID) { sati_status = sati_atapi_translate_command_response( &fw_io->parent.stp.sequence, fw_io, fw_io ); if (sati_status == SATI_COMPLETE) *completion_status = SCI_SUCCESS; else if (sati_status == SATI_FAILURE_CHECK_RESPONSE_DATA) *completion_status = SCI_FAILURE_IO_RESPONSE_VALID; else if (sati_status == SATI_SEQUENCE_INCOMPLETE) { // The translation indicates that additional REQUEST SENSE command is // necessary to finish the original SCSI request. As a result, // do not complete the IO and begin the next stage of the IO. return SCI_WARNING_SEQUENCE_INCOMPLETE; } else { // Something unexpected occurred during translation. Fail the // IO request to the user. *completion_status = SCI_FAILURE; } } else if (*completion_status == SCI_SUCCESS && fw_request->stp.sequence.state == SATI_SEQUENCE_STATE_INCOMPLETE) { //The internal Request Sense command is completed successfully. sati_atapi_translate_request_sense_response( &fw_io->parent.stp.sequence, fw_io, fw_io ); *completion_status = SCI_FAILURE_IO_RESPONSE_VALID; } return SCI_SUCCESS; } #endif // !defined(DISABLE_ATAPI) //****************************************************************************** // P R O T E C T E D M E T H O D S //****************************************************************************** /** * @brief This method will construct the SATA/STP specific IO request * object utilizing the SATI. * * @pre The scif_sas_request_construct() method should be invoked before * calling this method. * * @param[in,out] stp_io_request This parameter specifies the stp_io_request * to be constructed. * * @return Indicate if the construction was successful. * @return SCI_FAILURE_NO_NCQ_TAG_AVAILABLE * @return SCI_SUCCESS_IO_COMPLETE_BEFORE_START * @return SCI_FAILURE_IO_RESPONSE_VALID * @return SCI_FAILURE This return value indicates a change in the translator * where a new return code has been given, but is not yet understood * by this routine. */ SCI_STATUS scif_sas_stp_io_request_construct( SCIF_SAS_IO_REQUEST_T * fw_io ) { SATI_STATUS sati_status; SCI_STATUS sci_status = SCI_FAILURE; SCIF_SAS_REMOTE_DEVICE_T * fw_device = fw_io->parent.device; SCIF_LOG_TRACE(( sci_base_object_get_logger(fw_io), SCIF_LOG_OBJECT_IO_REQUEST, "scif_sas_stp_io_request_construct(0x%x) enter\n", fw_io )); // The translator will indirectly invoke core methods to set the fields // of the ATA register FIS inside of this method. sati_status = sati_translate_command( &fw_io->parent.stp.sequence, &fw_device->protocol_device.stp_device.sati_device, fw_io, fw_io ); if (sati_status == SATI_SUCCESS) { // Allow the core to finish construction of the IO request. sci_status = scic_io_request_construct_basic_sata(fw_io->parent.core_object); fw_io->parent.state_handlers = &stp_io_request_constructed_handlers; fw_io->parent.protocol_complete_handler = scif_sas_stp_core_cb_io_request_complete_handler; } else if (sati_status == SATI_SUCCESS_SGL_TRANSLATED) { SCIC_IO_SATA_PARAMETERS_T parms; parms.do_translate_sgl = FALSE; // The translation actually already caused translation of the // scatter gather list. So, call into the core through an API // that will not attempt to translate the SGL. scic_io_request_construct_advanced_sata( fw_io->parent.core_object, &parms ); fw_io->parent.state_handlers = &stp_io_request_constructed_handlers; fw_io->parent.protocol_complete_handler = scif_sas_stp_core_cb_io_request_complete_handler; // Done with translation sci_status = SCI_SUCCESS; } else if (sati_status == SATI_COMPLETE) sci_status = SCI_SUCCESS_IO_COMPLETE_BEFORE_START; else if (sati_status == SATI_FAILURE_CHECK_RESPONSE_DATA) sci_status = SCI_FAILURE_IO_RESPONSE_VALID; else { SCIF_LOG_ERROR(( sci_base_object_get_logger(fw_io), SCIF_LOG_OBJECT_IO_REQUEST, "Unexpected SAT translation failure 0x%x\n", fw_io )); } return sci_status; } #if !defined(DISABLE_ATAPI) /** * @brief This method will construct the STP PACKET protocol specific IO * request object. * * @pre The scif_sas_request_construct() method should be invoked before * calling this method. * * @param[in,out] fw_io This parameter specifies the stp packet io request * to be constructed. * * @return Indicate if the construction was successful. * @return SCI_SUCCESS_IO_COMPLETE_BEFORE_START * @return SCI_FAILURE_IO_RESPONSE_VALID * @return SCI_FAILURE This return value indicates a change in the translator * where a new return code has been given, but is not yet understood * by this routine. */ SCI_STATUS scif_sas_stp_packet_io_request_construct( SCIF_SAS_IO_REQUEST_T * fw_io ) { SATI_STATUS sati_status; SCI_STATUS sci_status = SCI_FAILURE; SCIF_SAS_REMOTE_DEVICE_T * fw_device = fw_io->parent.device; SCIF_LOG_TRACE(( sci_base_object_get_logger(fw_io), SCIF_LOG_OBJECT_IO_REQUEST, "scif_sas_stp_packet_io_request_construct(0x%x) enter\n", fw_io )); sati_status = sati_atapi_translate_command( &fw_io->parent.stp.sequence, &fw_device->protocol_device.stp_device.sati_device, fw_io, fw_io ); if (sati_status == SATI_SUCCESS) { // Allow the core to finish construction of the IO request. sci_status = scic_io_request_construct_basic_sata(fw_io->parent.core_object); fw_io->parent.protocol_complete_handler = scif_sas_stp_core_cb_packet_io_request_complete_handler; } else if (sati_status == SATI_COMPLETE) sci_status = SCI_SUCCESS_IO_COMPLETE_BEFORE_START; else if (sati_status == SATI_FAILURE_CHECK_RESPONSE_DATA) sci_status = SCI_FAILURE_IO_RESPONSE_VALID; else { SCIF_LOG_ERROR(( sci_base_object_get_logger(fw_io), SCIF_LOG_OBJECT_IO_REQUEST, "Unexpected SAT ATAPI translation failure 0x%x\n", fw_io )); } return sci_status; } #endif #if !defined(DISABLE_ATAPI) /** * @brief This method will get the number of bytes transferred in an packet IO. * * @param[in] fw_io This parameter specifies the stp packet io request whose * actual transferred length is to be retrieved. * * @return Actual length of transferred data. */ U32 scif_sas_stp_packet_io_request_get_number_of_bytes_transferred( SCIF_SAS_IO_REQUEST_T * fw_io ) { SCI_IO_REQUEST_HANDLE_T scic_io = scif_io_request_get_scic_handle(fw_io); SCI_IO_STATUS io_status = scic_request_get_sci_status (scic_io); U32 actual_data_length; if (io_status == SCI_IO_FAILURE_RESPONSE_VALID) actual_data_length = 0; else if (io_status == SCI_IO_SUCCESS_IO_DONE_EARLY) { actual_data_length = sati_atapi_translate_number_of_bytes_transferred( &fw_io->parent.stp.sequence, fw_io, fw_io); if (actual_data_length == 0) actual_data_length = scic_io_request_get_number_of_bytes_transferred(scic_io); } else actual_data_length = scic_io_request_get_number_of_bytes_transferred(scic_io); return actual_data_length; } #endif //****************************************************************************** // P U B L I C M E T H O D S //****************************************************************************** BOOL scic_cb_io_request_do_copy_rx_frames( void * scic_user_io_request ) { SCIF_SAS_IO_REQUEST_T * fw_io = (SCIF_SAS_IO_REQUEST_T*) scic_user_io_request; SCIF_LOG_TRACE(( sci_base_object_get_logger(fw_io), SCIF_LOG_OBJECT_IO_REQUEST, "scic_cb_io_request_do_copy_rx_frames(0x%x) enter\n", fw_io )); // If the translation was a PIO DATA IN (i.e. read) and the request // was actually a READ payload operation, then copy the data, since // there will be SGL space allocated for the transfer. if (fw_io->parent.stp.sequence.protocol == SAT_PROTOCOL_PIO_DATA_IN) { if ( (fw_io->parent.stp.sequence.type == SATI_SEQUENCE_ATA_PASSTHROUGH_12) || (fw_io->parent.stp.sequence.type == SATI_SEQUENCE_ATA_PASSTHROUGH_16) || ( (fw_io->parent.stp.sequence.type >= SATI_SEQUENCE_TYPE_READ_MIN) && (fw_io->parent.stp.sequence.type <= SATI_SEQUENCE_TYPE_READ_MAX) ) ) { SCIF_LOG_TRACE(( sci_base_object_get_logger(fw_io), SCIF_LOG_OBJECT_IO_REQUEST, "scic_cb_io_request_do_copy_rx_frames(0x%x) TRUE\n", fw_io )); return TRUE; } } // For all other requests we leave the data in the core buffers. // This allows the translation to translate without having to have // separate space allocated into which to copy the data. return FALSE; } // --------------------------------------------------------------------------- U8 scic_cb_request_get_sat_protocol( void * scic_user_io_request ) { SCIF_SAS_IO_REQUEST_T * fw_io = (SCIF_SAS_IO_REQUEST_T*) scic_user_io_request; return fw_io->parent.stp.sequence.protocol; } U8 *scic_cb_io_request_get_virtual_address_from_sgl( void * scic_user_io_request, U32 byte_offset ) { SCIF_SAS_REQUEST_T *fw_request = (SCIF_SAS_REQUEST_T *) sci_object_get_association(scic_user_io_request); return scif_cb_io_request_get_virtual_address_from_sgl( sci_object_get_association(fw_request), byte_offset ); } #ifdef ENABLE_OSSL_COPY_BUFFER void scic_cb_io_request_copy_buffer( void * scic_user_io_request, U8 *source_addr, U32 offset, U32 length ) { SCIF_SAS_REQUEST_T *fw_request = (SCIF_SAS_REQUEST_T *)sci_object_get_association(scic_user_io_request); return scif_cb_io_request_copy_buffer( sci_object_get_association(fw_request), source_addr, offset, length ); } #endif // --------------------------------------------------------------------------- SCI_BASE_REQUEST_STATE_HANDLER_T stp_io_request_constructed_handlers = { scif_sas_stp_io_request_constructed_start_handler, scif_sas_io_request_constructed_abort_handler, scif_sas_stp_io_request_constructed_complete_handler, scif_sas_io_request_default_destruct_handler };