1 /*- 2 * This file is provided under a dual BSD/GPLv2 license. When using or 3 * redistributing this file, you may do so under either license. 4 * 5 * GPL LICENSE SUMMARY 6 * 7 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of version 2 of the GNU General Public License as 11 * published by the Free Software Foundation. 12 * 13 * This program is distributed in the hope that it will be useful, but 14 * WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. 21 * The full GNU General Public License is included in this distribution 22 * in the file called LICENSE.GPL. 23 * 24 * BSD LICENSE 25 * 26 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. 27 * All rights reserved. 28 * 29 * Redistribution and use in source and binary forms, with or without 30 * modification, are permitted provided that the following conditions 31 * are met: 32 * 33 * * Redistributions of source code must retain the above copyright 34 * notice, this list of conditions and the following disclaimer. 35 * * Redistributions in binary form must reproduce the above copyright 36 * notice, this list of conditions and the following disclaimer in 37 * the documentation and/or other materials provided with the 38 * distribution. 39 * 40 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 41 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 42 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 43 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 44 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 46 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 47 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 48 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 49 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 50 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 51 */ 52 53 #include <sys/cdefs.h> 54 __FBSDID("$FreeBSD$"); 55 56 #include <dev/isci/scil/sati.h> 57 #include <dev/isci/scil/scif_sas_logger.h> 58 #include <dev/isci/scil/scif_sas_task_request.h> 59 #include <dev/isci/scil/scif_sas_controller.h> 60 #include <dev/isci/scil/scif_sas_remote_device.h> 61 #include <dev/isci/scil/scif_sas_stp_task_request.h> 62 #include <dev/isci/scil/scic_task_request.h> 63 #include <dev/isci/scil/scic_controller.h> 64 65 /** 66 * @brief This method provides SATA/STP STARTED state specific handling for 67 * when the user attempts to complete the supplied IO request. 68 * It will perform data/response translation and free NCQ tags 69 * if necessary. 70 * 71 * @param[in] io_request This parameter specifies the IO request object 72 * to be started. 73 * 74 * @return This method returns a value indicating if the IO request was 75 * successfully completed or not. 76 */ 77 static 78 SCI_STATUS scif_sas_stp_core_cb_task_request_complete_handler( 79 SCIF_SAS_CONTROLLER_T * fw_controller, 80 SCIF_SAS_REMOTE_DEVICE_T * fw_device, 81 SCIF_SAS_REQUEST_T * fw_request, 82 SCI_STATUS * completion_status 83 ) 84 { 85 #if !defined(DISABLE_SATI_TASK_MANAGEMENT) 86 SCIF_SAS_TASK_REQUEST_T * fw_task = (SCIF_SAS_TASK_REQUEST_T *) fw_request; 87 88 SCIF_LOG_TRACE(( 89 sci_base_object_get_logger(fw_controller), 90 SCIF_LOG_OBJECT_TASK_MANAGEMENT, 91 "scif_sas_stp_core_cb_task_request_complete_handler(0x%x, 0x%x, 0x%x, 0x%x) enter\n", 92 fw_controller, fw_device, fw_request, *completion_status 93 )); 94 95 // Translating the response is only necessary if some sort of error 96 // occurred resulting in having the error bit set in the ATA status 97 // register and values to decode in the ATA error register. 98 if ( (*completion_status == SCI_SUCCESS) 99 || (*completion_status == SCI_FAILURE_IO_RESPONSE_VALID) ) 100 { 101 SATI_STATUS sati_status = sati_translate_task_response( 102 &fw_task->parent.stp.sequence, 103 fw_task, 104 fw_task 105 ); 106 107 if (sati_status == SATI_COMPLETE) 108 *completion_status = SCI_SUCCESS; 109 else if (sati_status == SATI_FAILURE_CHECK_RESPONSE_DATA) 110 *completion_status = SCI_FAILURE_IO_RESPONSE_VALID; 111 else if (sati_status == SATI_SEQUENCE_INCOMPLETE) 112 { 113 // The translation indicates that additional SATA requests are 114 // necessary to finish the original SCSI request. As a result, 115 // do not complete the IO and begin the next stage of the 116 // translation. 117 /// @todo multiple ATA commands are required, but not supported yet. 118 return SCI_FAILURE; 119 } 120 else 121 { 122 // Something unexpected occurred during translation. Fail the 123 // IO request to the user. 124 *completion_status = SCI_FAILURE; 125 } 126 } 127 else //A stp task request sometimes fails. 128 { 129 if (scif_sas_task_request_get_function(fw_task) == SCI_SAS_ABORT_TASK_SET) 130 { 131 scif_sas_stp_task_request_abort_task_set_failure_handler( 132 fw_device, fw_task); 133 } 134 } 135 136 return SCI_SUCCESS; 137 #else // !defined(DISABLE_SATI_TASK_MANAGEMENT) 138 return SCI_FAILURE; 139 #endif // !defined(DISABLE_SATI_TASK_MANAGEMENT) 140 } 141 142 /** 143 * @file 144 * 145 * @brief This file contains the method implementations for the 146 * SCIF_SAS_STP_TASK_REQUEST object. The contents will implement 147 * SATA/STP specific functionality. 148 */ 149 SCI_STATUS scif_sas_stp_task_request_construct( 150 SCIF_SAS_TASK_REQUEST_T * fw_task 151 ) 152 { 153 SCI_STATUS sci_status = SCI_FAILURE; 154 155 #if !defined(DISABLE_SATI_TASK_MANAGEMENT) 156 SATI_STATUS sati_status; 157 SCIF_SAS_REMOTE_DEVICE_T * fw_device = fw_task->parent.device; 158 159 SCIF_LOG_TRACE(( 160 sci_base_object_get_logger(fw_task), 161 SCIF_LOG_OBJECT_TASK_MANAGEMENT, 162 "scif_sas_stp_task_request_construct(0x%x) enter\n", 163 fw_task 164 )); 165 166 // The translator will indirectly invoke core methods to set the fields 167 // of the ATA register FIS inside of this method. 168 sati_status = sati_translate_task_management( 169 &fw_task->parent.stp.sequence, 170 &fw_device->protocol_device.stp_device.sati_device, 171 fw_task, 172 fw_task 173 ); 174 175 if (sati_status == SATI_SUCCESS) 176 { 177 sci_status = scic_task_request_construct_sata(fw_task->parent.core_object); 178 //fw_task->parent.state_handlers = &stp_io_request_constructed_handlers; 179 fw_task->parent.protocol_complete_handler = 180 scif_sas_stp_core_cb_task_request_complete_handler; 181 } 182 else 183 { 184 SCIF_LOG_ERROR(( 185 sci_base_object_get_logger(fw_task), 186 SCIF_LOG_OBJECT_TASK_MANAGEMENT, 187 "Task 0x%x received unexpected SAT translation failure 0x%x\n", 188 fw_task, sati_status 189 )); 190 } 191 #endif // !defined(DISABLE_SATI_TASK_MANAGEMENT) 192 193 return sci_status; 194 } 195 196 197 /** 198 * @brief This method provides handling for failed stp TASK MANAGEMENT 199 * request. 200 * 201 * @param[in] fw_device This parameter specifies the target device the 202 * task management request towards to. 203 * @param[in] fw_request This parameter specifies the failed task management 204 * request. 205 * @param[in] completion_status This parameter sprecifies the completion 206 * status of the task management request's core status. 207 * 208 * @return None. 209 */ 210 void scif_sas_stp_task_request_abort_task_set_failure_handler( 211 SCIF_SAS_REMOTE_DEVICE_T * fw_device, 212 SCIF_SAS_TASK_REQUEST_T * fw_task 213 ) 214 { 215 #if !defined(DISABLE_SATI_TASK_MANAGEMENT) 216 SCIF_SAS_DOMAIN_T * fw_domain = fw_device->domain; 217 SCI_FAST_LIST_ELEMENT_T * pending_request_element; 218 SCIF_SAS_REQUEST_T * pending_request = NULL; 219 220 pending_request_element = fw_domain->request_list.list_head; 221 222 // Cycle through the list of IO requests. search all the 223 // outstanding IOs with "waiting for abort task set" flag, 224 // completes them now. 225 while (pending_request_element != NULL) 226 { 227 pending_request = 228 (SCIF_SAS_REQUEST_T*) sci_fast_list_get_object(pending_request_element); 229 230 // The current element may be deleted from the list becasue of 231 // IO completion so advance to the next element early 232 pending_request_element = sci_fast_list_get_next(pending_request_element); 233 234 if ( pending_request->device == fw_device 235 && pending_request->is_waiting_for_abort_task_set == TRUE ) 236 { 237 //In case the pending_request is still in the middle of aborting. 238 //abort it again to the core. 239 SCI_STATUS abort_status; 240 241 //Reset the flag now since we are process the read log ext command now. 242 pending_request->is_waiting_for_abort_task_set = FALSE; 243 244 abort_status = scic_controller_terminate_request( 245 fw_domain->controller->core_object, 246 fw_device->core_object, 247 pending_request->core_object 248 ); 249 250 if (abort_status == SCI_FAILURE_INVALID_STATE) 251 { 252 //the request must have not be in aborting state anymore, complete it now. 253 scif_cb_io_request_complete( 254 fw_domain->controller, 255 fw_device, 256 pending_request, 257 SCI_IO_FAILURE_TERMINATED 258 ); 259 } 260 //otherwise, the abort succeeded. Since the waiting flag is cleared, 261 //the pending request will be completed later. 262 } 263 } 264 #endif //#if !defined(DISABLE_SATI_TASK_MANAGEMENT) 265 } 266