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 /** 57 * @file 58 * 59 * @brief This file contains the implementation of the 60 * SCIF_SAS_INTERNAL_IO_REQUEST object. 61 */ 62 63 64 #include <dev/isci/scil/scic_io_request.h> 65 #include <dev/isci/scil/scic_remote_device.h> 66 #include <dev/isci/scil/scic_user_callback.h> 67 #include <dev/isci/scil/scic_controller.h> 68 #include <dev/isci/scil/scic_task_request.h> 69 #include <dev/isci/scil/scif_user_callback.h> 70 71 #include <dev/isci/scil/scif_sas_controller.h> 72 #include <dev/isci/scil/scif_sas_domain.h> 73 #include <dev/isci/scil/scif_sas_remote_device.h> 74 #include <dev/isci/scil/scif_sas_io_request.h> 75 #include <dev/isci/scil/scif_sas_internal_io_request.h> 76 #include <dev/isci/scil/scif_sas_task_request.h> 77 #include <dev/isci/scil/scif_sas_stp_io_request.h> 78 #include <dev/isci/scil/scif_sas_logger.h> 79 #include <dev/isci/scil/scif_sas_smp_io_request.h> 80 #include <dev/isci/scil/sci_util.h> 81 82 //****************************************************************************** 83 //* P U B L I C M E T H O D S 84 //****************************************************************************** 85 86 /** 87 * @brief this routine return all memory needed for an internal request, both 88 * framework and core request. 89 * 90 * @return U32 size of all memory needed for an internal request 91 */ 92 U32 scif_sas_internal_request_get_object_size( 93 void 94 ) 95 { 96 return MAX( 97 (sizeof(SCIF_SAS_INTERNAL_IO_REQUEST_T) + scic_io_request_get_object_size()), 98 (sizeof(SCIF_SAS_TASK_REQUEST_T) + scic_task_request_get_object_size()) 99 ); 100 } 101 102 103 /** 104 * @brief This method constructs an internal smp request. 105 * 106 * @param[in] fw_controller The framework controller 107 * @param[in] fw_device The smp device that the internal io targets to. 108 * @param[in] internal_io_memory The memory space for the internal io. 109 * @param[in] io_tag The io tag for the internl io to be constructed. 110 * @param[in] smp_command A pointer to the smp request data structure according 111 * to SAS protocol. 112 * 113 * @return Indicate if the internal io was successfully constructed. 114 * @retval SCI_SUCCESS This value is returned if the internal io was 115 * successfully constructed. 116 * @retval SCI_FAILURE This value is returned if the internal io was failed to 117 * be constructed. 118 */ 119 SCI_STATUS scif_sas_internal_io_request_construct_smp( 120 SCIF_SAS_CONTROLLER_T * fw_controller, 121 SCIF_SAS_REMOTE_DEVICE_T * fw_device, 122 void * internal_io_memory, 123 U16 io_tag, 124 SMP_REQUEST_T * smp_command 125 ) 126 { 127 SCIF_SAS_INTERNAL_IO_REQUEST_T * fw_internal_io = 128 (SCIF_SAS_INTERNAL_IO_REQUEST_T*)internal_io_memory; 129 130 SCIF_SAS_IO_REQUEST_T * fw_io = 131 (SCIF_SAS_IO_REQUEST_T*)internal_io_memory; 132 133 SCI_STATUS status; 134 135 //call common smp request construct routine. 136 status = scif_sas_io_request_construct_smp( 137 fw_controller, 138 fw_device, 139 internal_io_memory, 140 (char *)internal_io_memory + sizeof(SCIF_SAS_INTERNAL_IO_REQUEST_T), 141 SCI_CONTROLLER_INVALID_IO_TAG, 142 smp_command, 143 NULL //there is no associated user io object. 144 ); 145 146 //Codes below are all internal io related. 147 if (status == SCI_SUCCESS) 148 { 149 //set the is_internal flag 150 fw_io->parent.is_internal = TRUE; 151 152 if (fw_internal_io->internal_io_timer == NULL) 153 { 154 //create the timer for this internal request. 155 fw_internal_io->internal_io_timer = 156 scif_cb_timer_create( 157 (SCI_CONTROLLER_HANDLE_T *)fw_controller, 158 scif_sas_internal_io_request_timeout_handler, 159 (void*)fw_io 160 ); 161 } 162 else 163 { 164 ASSERT (0); 165 } 166 167 //insert into high priority queue 168 if ( !sci_pool_full(fw_controller->hprq.pool) ) 169 { 170 sci_pool_put( 171 fw_controller->hprq.pool, (POINTER_UINT) internal_io_memory 172 ); 173 } 174 else 175 { 176 SCIF_LOG_ERROR(( 177 sci_base_object_get_logger(fw_controller), 178 SCIF_LOG_OBJECT_CONTROLLER | SCIF_LOG_OBJECT_REMOTE_DEVICE, 179 "scif_sas_internal_io_request_construct_smp, high priority queue full!\n" 180 )); 181 182 scif_sas_internal_io_request_destruct(fw_controller, fw_internal_io); 183 184 //return failure status. 185 return SCI_FAILURE_INSUFFICIENT_RESOURCES; 186 } 187 } 188 189 return status; 190 } 191 192 193 /** 194 * @brief This method constructs an internal smp request. 195 * @param[in] fw_io 196 * 197 * @return SCI_STATUS 198 */ 199 SCI_STATUS scif_sas_internal_io_request_construct_stp( 200 SCIF_SAS_INTERNAL_IO_REQUEST_T * fw_io 201 ) 202 { 203 //TBD 204 return SCI_SUCCESS; 205 } 206 207 208 /** 209 * @brief This method handles the timeout situation for an internal io. 210 * 211 * @param[in] fw_internal_io The timed out IO. 212 * 213 * @return none 214 */ 215 void scif_sas_internal_io_request_timeout_handler( 216 void * fw_internal_io 217 ) 218 { 219 SCIF_SAS_REQUEST_T * fw_request = (SCIF_SAS_REQUEST_T *)fw_internal_io; 220 221 SCIF_LOG_TRACE(( 222 sci_base_object_get_logger(fw_request), 223 SCIF_LOG_OBJECT_IO_REQUEST, 224 "scif_sas_internal_io_request_timeout_handler(0x%x) enter\n", 225 fw_internal_io 226 )); 227 228 fw_request->state_handlers->abort_handler(&fw_request->parent); 229 } 230 231 232 /** 233 * @brief This methods takes care of completion of an internal request about its 234 * "internal" related feature, including the memory recycling and timer. 235 * 236 * @param[in] fw_controller The framework controller object. 237 * @param[in] fw_internal_io The internal io to be completed. 238 * @param[in] completion_status the completeion status by core and framework so 239 * far. 240 * 241 * @return none 242 */ 243 void scif_sas_internal_io_request_complete( 244 SCIF_SAS_CONTROLLER_T * fw_controller, 245 SCIF_SAS_INTERNAL_IO_REQUEST_T * fw_internal_io, 246 SCI_STATUS completion_status 247 ) 248 { 249 SCIF_LOG_TRACE(( 250 sci_base_object_get_logger(fw_controller), 251 SCIF_LOG_OBJECT_IO_REQUEST, 252 "scif_sas_internal_io_request_complete(0x%x, 0x%x, 0x%x) enter\n", 253 fw_controller, fw_internal_io, completion_status 254 )); 255 256 scif_cb_timer_stop(fw_controller, fw_internal_io->internal_io_timer); 257 scif_sas_internal_io_request_destruct(fw_controller, fw_internal_io); 258 } 259 260 261 /** 262 * @brief This methods takes care of destruction of an internal request about its 263 * "internal" related feature, including the memory recycling and timer. 264 * 265 * @param[in] fw_controller The framework controller object. 266 * @param[in] fw_internal_io The internal io to be completed. 267 * 268 * @return none 269 */ 270 void scif_sas_internal_io_request_destruct( 271 SCIF_SAS_CONTROLLER_T * fw_controller, 272 SCIF_SAS_INTERNAL_IO_REQUEST_T * fw_internal_io 273 ) 274 { 275 if (fw_internal_io->internal_io_timer != NULL) 276 { 277 scif_cb_timer_destroy(fw_controller, fw_internal_io->internal_io_timer); 278 fw_internal_io->internal_io_timer = NULL; 279 } 280 scif_sas_controller_free_internal_request(fw_controller, fw_internal_io); 281 } 282 283