1230557Sjimharris/*- 2230557Sjimharris * BSD LICENSE 3230557Sjimharris * 4230557Sjimharris * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. 5230557Sjimharris * All rights reserved. 6230557Sjimharris * 7230557Sjimharris * Redistribution and use in source and binary forms, with or without 8230557Sjimharris * modification, are permitted provided that the following conditions 9230557Sjimharris * are met: 10230557Sjimharris * 11230557Sjimharris * * Redistributions of source code must retain the above copyright 12230557Sjimharris * notice, this list of conditions and the following disclaimer. 13230557Sjimharris * * Redistributions in binary form must reproduce the above copyright 14230557Sjimharris * notice, this list of conditions and the following disclaimer in 15230557Sjimharris * the documentation and/or other materials provided with the 16230557Sjimharris * distribution. 17230557Sjimharris * 18230557Sjimharris * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19230557Sjimharris * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20230557Sjimharris * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21230557Sjimharris * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22230557Sjimharris * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23230557Sjimharris * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24230557Sjimharris * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25230557Sjimharris * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26230557Sjimharris * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27230557Sjimharris * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28230557Sjimharris * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29230557Sjimharris */ 30230557Sjimharris 31230557Sjimharris#include <sys/cdefs.h> 32230557Sjimharris__FBSDID("$FreeBSD: releng/11.0/sys/dev/isci/isci_io_request.c 298955 2016-05-03 03:41:25Z pfg $"); 33230557Sjimharris 34230557Sjimharris#include <dev/isci/isci.h> 35230557Sjimharris 36230557Sjimharris#include <cam/scsi/scsi_all.h> 37230557Sjimharris#include <cam/scsi/scsi_message.h> 38230557Sjimharris 39230557Sjimharris#include <dev/isci/scil/intel_sas.h> 40230557Sjimharris 41230557Sjimharris#include <dev/isci/scil/sci_util.h> 42230557Sjimharris 43230557Sjimharris#include <dev/isci/scil/scif_io_request.h> 44230557Sjimharris#include <dev/isci/scil/scif_controller.h> 45230557Sjimharris#include <dev/isci/scil/scif_remote_device.h> 46230557Sjimharris#include <dev/isci/scil/scif_user_callback.h> 47230557Sjimharris 48230557Sjimharris#include <dev/isci/scil/scic_io_request.h> 49230557Sjimharris#include <dev/isci/scil/scic_user_callback.h> 50230557Sjimharris 51230557Sjimharris/** 52230557Sjimharris * @brief This user callback will inform the user that an IO request has 53230557Sjimharris * completed. 54230557Sjimharris * 55230557Sjimharris * @param[in] controller This parameter specifies the controller on 56230557Sjimharris * which the IO request is completing. 57230557Sjimharris * @param[in] remote_device This parameter specifies the remote device on 58230557Sjimharris * which this request is completing. 59230557Sjimharris * @param[in] io_request This parameter specifies the IO request that has 60230557Sjimharris * completed. 61230557Sjimharris * @param[in] completion_status This parameter specifies the results of 62230557Sjimharris * the IO request operation. SCI_IO_SUCCESS indicates 63230557Sjimharris * successful completion. 64230557Sjimharris * 65230557Sjimharris * @return none 66230557Sjimharris */ 67230557Sjimharrisvoid 68230557Sjimharrisscif_cb_io_request_complete(SCI_CONTROLLER_HANDLE_T scif_controller, 69230557Sjimharris SCI_REMOTE_DEVICE_HANDLE_T remote_device, 70230557Sjimharris SCI_IO_REQUEST_HANDLE_T io_request, SCI_IO_STATUS completion_status) 71230557Sjimharris{ 72230557Sjimharris struct ISCI_IO_REQUEST *isci_request = 73230557Sjimharris (struct ISCI_IO_REQUEST *)sci_object_get_association(io_request); 74230557Sjimharris 75230557Sjimharris scif_controller_complete_io(scif_controller, remote_device, io_request); 76230557Sjimharris isci_io_request_complete(scif_controller, remote_device, isci_request, 77230557Sjimharris completion_status); 78230557Sjimharris} 79230557Sjimharris 80230557Sjimharrisvoid 81230557Sjimharrisisci_io_request_complete(SCI_CONTROLLER_HANDLE_T scif_controller, 82230557Sjimharris SCI_REMOTE_DEVICE_HANDLE_T remote_device, 83230557Sjimharris struct ISCI_IO_REQUEST *isci_request, SCI_IO_STATUS completion_status) 84230557Sjimharris{ 85230557Sjimharris struct ISCI_CONTROLLER *isci_controller; 86230557Sjimharris struct ISCI_REMOTE_DEVICE *isci_remote_device; 87230557Sjimharris union ccb *ccb; 88234106Sjimharris BOOL complete_ccb; 89296891Simp struct ccb_scsiio *csio; 90230557Sjimharris 91234106Sjimharris complete_ccb = TRUE; 92230557Sjimharris isci_controller = (struct ISCI_CONTROLLER *) sci_object_get_association(scif_controller); 93230557Sjimharris isci_remote_device = 94230557Sjimharris (struct ISCI_REMOTE_DEVICE *) sci_object_get_association(remote_device); 95230557Sjimharris 96230557Sjimharris ccb = isci_request->ccb; 97296891Simp csio = &ccb->csio; 98230557Sjimharris ccb->ccb_h.status &= ~CAM_STATUS_MASK; 99230557Sjimharris 100230557Sjimharris switch (completion_status) { 101230557Sjimharris case SCI_IO_SUCCESS: 102230557Sjimharris case SCI_IO_SUCCESS_COMPLETE_BEFORE_START: 103230557Sjimharris#if __FreeBSD_version >= 900026 104230557Sjimharris if (ccb->ccb_h.func_code == XPT_SMP_IO) { 105230557Sjimharris void *smp_response = 106230557Sjimharris scif_io_request_get_response_iu_address( 107230557Sjimharris isci_request->sci_object); 108230557Sjimharris 109230557Sjimharris memcpy(ccb->smpio.smp_response, smp_response, 110230557Sjimharris ccb->smpio.smp_response_len); 111230557Sjimharris } 112230557Sjimharris#endif 113230557Sjimharris ccb->ccb_h.status |= CAM_REQ_CMP; 114230557Sjimharris break; 115230557Sjimharris 116230557Sjimharris case SCI_IO_SUCCESS_IO_DONE_EARLY: 117230557Sjimharris ccb->ccb_h.status |= CAM_REQ_CMP; 118230557Sjimharris ccb->csio.resid = ccb->csio.dxfer_len - 119230557Sjimharris scif_io_request_get_number_of_bytes_transferred( 120230557Sjimharris isci_request->sci_object); 121230557Sjimharris break; 122230557Sjimharris 123230557Sjimharris case SCI_IO_FAILURE_RESPONSE_VALID: 124230557Sjimharris { 125230557Sjimharris SCI_SSP_RESPONSE_IU_T * response_buffer; 126230557Sjimharris uint32_t sense_length; 127230557Sjimharris int error_code, sense_key, asc, ascq; 128230557Sjimharris 129230557Sjimharris response_buffer = (SCI_SSP_RESPONSE_IU_T *) 130230557Sjimharris scif_io_request_get_response_iu_address( 131230557Sjimharris isci_request->sci_object); 132230557Sjimharris 133230557Sjimharris sense_length = sci_ssp_get_sense_data_length( 134230557Sjimharris response_buffer->sense_data_length); 135230557Sjimharris 136230557Sjimharris sense_length = MIN(csio->sense_len, sense_length); 137230557Sjimharris 138230557Sjimharris memcpy(&csio->sense_data, response_buffer->data, sense_length); 139230557Sjimharris 140230557Sjimharris csio->sense_resid = csio->sense_len - sense_length; 141230557Sjimharris csio->scsi_status = response_buffer->status; 142230557Sjimharris ccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR; 143230557Sjimharris ccb->ccb_h.status |= CAM_AUTOSNS_VALID; 144230557Sjimharris scsi_extract_sense( &csio->sense_data, &error_code, &sense_key, 145230557Sjimharris &asc, &ascq ); 146230557Sjimharris isci_log_message(1, "ISCI", 147230557Sjimharris "isci: bus=%x target=%x lun=%x cdb[0]=%x status=%x key=%x asc=%x ascq=%x\n", 148230557Sjimharris ccb->ccb_h.path_id, ccb->ccb_h.target_id, 149296891Simp ccb->ccb_h.target_lun, scsiio_cdb_ptr(csio), 150230557Sjimharris csio->scsi_status, sense_key, asc, ascq); 151230557Sjimharris break; 152230557Sjimharris } 153230557Sjimharris 154230557Sjimharris case SCI_IO_FAILURE_REMOTE_DEVICE_RESET_REQUIRED: 155230557Sjimharris isci_remote_device_reset(isci_remote_device, NULL); 156256231Sjimharris ccb->ccb_h.status |= CAM_REQ_TERMIO; 157256231Sjimharris isci_log_message(0, "ISCI", 158256231Sjimharris "isci: bus=%x target=%x lun=%x cdb[0]=%x remote device reset required\n", 159256231Sjimharris ccb->ccb_h.path_id, ccb->ccb_h.target_id, 160296891Simp ccb->ccb_h.target_lun, scsiio_cdb_ptr(csio)); 161256231Sjimharris break; 162230557Sjimharris 163230557Sjimharris case SCI_IO_FAILURE_TERMINATED: 164230557Sjimharris ccb->ccb_h.status |= CAM_REQ_TERMIO; 165256231Sjimharris isci_log_message(0, "ISCI", 166230557Sjimharris "isci: bus=%x target=%x lun=%x cdb[0]=%x terminated\n", 167230557Sjimharris ccb->ccb_h.path_id, ccb->ccb_h.target_id, 168296891Simp ccb->ccb_h.target_lun, scsiio_cdb_ptr(csio)); 169230557Sjimharris break; 170230557Sjimharris 171230557Sjimharris case SCI_IO_FAILURE_INVALID_STATE: 172230557Sjimharris case SCI_IO_FAILURE_INSUFFICIENT_RESOURCES: 173234106Sjimharris complete_ccb = FALSE; 174230557Sjimharris break; 175230557Sjimharris 176230557Sjimharris case SCI_IO_FAILURE_INVALID_REMOTE_DEVICE: 177230557Sjimharris ccb->ccb_h.status |= CAM_DEV_NOT_THERE; 178230557Sjimharris break; 179230557Sjimharris 180230557Sjimharris case SCI_IO_FAILURE_NO_NCQ_TAG_AVAILABLE: 181230557Sjimharris { 182230557Sjimharris struct ccb_relsim ccb_relsim; 183230557Sjimharris struct cam_path *path; 184230557Sjimharris 185230557Sjimharris xpt_create_path(&path, NULL, 186230557Sjimharris cam_sim_path(isci_controller->sim), 187230557Sjimharris isci_remote_device->index, 0); 188230557Sjimharris 189230557Sjimharris xpt_setup_ccb(&ccb_relsim.ccb_h, path, 5); 190230557Sjimharris ccb_relsim.ccb_h.func_code = XPT_REL_SIMQ; 191230557Sjimharris ccb_relsim.ccb_h.flags = CAM_DEV_QFREEZE; 192230557Sjimharris ccb_relsim.release_flags = RELSIM_ADJUST_OPENINGS; 193230557Sjimharris ccb_relsim.openings = 194230557Sjimharris scif_remote_device_get_max_queue_depth(remote_device); 195230557Sjimharris xpt_action((union ccb *)&ccb_relsim); 196230557Sjimharris xpt_free_path(path); 197234106Sjimharris complete_ccb = FALSE; 198230557Sjimharris } 199230557Sjimharris break; 200230557Sjimharris 201230557Sjimharris case SCI_IO_FAILURE: 202230557Sjimharris case SCI_IO_FAILURE_REQUIRES_SCSI_ABORT: 203230557Sjimharris case SCI_IO_FAILURE_UNSUPPORTED_PROTOCOL: 204230557Sjimharris case SCI_IO_FAILURE_PROTOCOL_VIOLATION: 205230557Sjimharris case SCI_IO_FAILURE_INVALID_PARAMETER_VALUE: 206230557Sjimharris case SCI_IO_FAILURE_CONTROLLER_SPECIFIC_ERR: 207230557Sjimharris default: 208230557Sjimharris isci_log_message(1, "ISCI", 209230557Sjimharris "isci: bus=%x target=%x lun=%x cdb[0]=%x completion status=%x\n", 210230557Sjimharris ccb->ccb_h.path_id, ccb->ccb_h.target_id, 211296891Simp ccb->ccb_h.target_lun, scsiio_cdb_ptr(csio), 212230557Sjimharris completion_status); 213230557Sjimharris ccb->ccb_h.status |= CAM_REQ_CMP_ERR; 214230557Sjimharris break; 215230557Sjimharris } 216230557Sjimharris 217230557Sjimharris callout_stop(&isci_request->parent.timer); 218230557Sjimharris bus_dmamap_sync(isci_request->parent.dma_tag, 219230557Sjimharris isci_request->parent.dma_map, 220230557Sjimharris BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 221230557Sjimharris 222230557Sjimharris bus_dmamap_unload(isci_request->parent.dma_tag, 223230557Sjimharris isci_request->parent.dma_map); 224230557Sjimharris 225230557Sjimharris isci_request->ccb = NULL; 226230557Sjimharris 227230557Sjimharris sci_pool_put(isci_controller->request_pool, 228230557Sjimharris (struct ISCI_REQUEST *)isci_request); 229234106Sjimharris 230234106Sjimharris if (complete_ccb) { 231235751Sjimharris if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 232234106Sjimharris /* ccb will be completed with some type of non-success 233234106Sjimharris * status. So temporarily freeze the queue until the 234234106Sjimharris * upper layers can act on the status. The 235234106Sjimharris * CAM_DEV_QFRZN flag will then release the queue 236234106Sjimharris * after the status is acted upon. 237234106Sjimharris */ 238234106Sjimharris ccb->ccb_h.status |= CAM_DEV_QFRZN; 239234106Sjimharris xpt_freeze_devq(ccb->ccb_h.path, 1); 240234106Sjimharris } 241234106Sjimharris 242235751Sjimharris if (ccb->ccb_h.status & CAM_SIM_QUEUED) { 243235751Sjimharris 244235751Sjimharris KASSERT(ccb == isci_remote_device->queued_ccb_in_progress, 245235751Sjimharris ("multiple internally queued ccbs in flight")); 246235751Sjimharris 247235751Sjimharris TAILQ_REMOVE(&isci_remote_device->queued_ccbs, 248235751Sjimharris &ccb->ccb_h, sim_links.tqe); 249235751Sjimharris ccb->ccb_h.status &= ~CAM_SIM_QUEUED; 250235751Sjimharris 251235751Sjimharris /* 252235751Sjimharris * This CCB that was in the queue was completed, so 253235751Sjimharris * set the in_progress pointer to NULL denoting that 254235751Sjimharris * we can retry another CCB from the queue. We only 255235751Sjimharris * allow one CCB at a time from the queue to be 256235751Sjimharris * in progress so that we can effectively maintain 257235751Sjimharris * ordering. 258235751Sjimharris */ 259235751Sjimharris isci_remote_device->queued_ccb_in_progress = NULL; 260235751Sjimharris } 261235751Sjimharris 262234106Sjimharris if (isci_remote_device->frozen_lun_mask != 0) { 263234106Sjimharris isci_remote_device_release_device_queue(isci_remote_device); 264234106Sjimharris } 265234106Sjimharris 266234106Sjimharris xpt_done(ccb); 267234106Sjimharris 268234106Sjimharris if (isci_controller->is_frozen == TRUE) { 269234106Sjimharris isci_controller->is_frozen = FALSE; 270234106Sjimharris xpt_release_simq(isci_controller->sim, TRUE); 271234106Sjimharris } 272234106Sjimharris } else { 273234106Sjimharris isci_remote_device_freeze_lun_queue(isci_remote_device, 274234106Sjimharris ccb->ccb_h.target_lun); 275234106Sjimharris 276235751Sjimharris if (ccb->ccb_h.status & CAM_SIM_QUEUED) { 277235751Sjimharris 278235751Sjimharris KASSERT(ccb == isci_remote_device->queued_ccb_in_progress, 279235751Sjimharris ("multiple internally queued ccbs in flight")); 280235751Sjimharris 281235751Sjimharris /* 282235751Sjimharris * Do nothing, CCB is already on the device's queue. 283235751Sjimharris * We leave it on the queue, to be retried again 284235751Sjimharris * next time a CCB on this device completes, or we 285235751Sjimharris * get a ready notification for this device. 286235751Sjimharris */ 287235751Sjimharris isci_log_message(1, "ISCI", "already queued %p %x\n", 288296891Simp ccb, scsiio_cdb_ptr(csio)); 289235751Sjimharris 290235751Sjimharris isci_remote_device->queued_ccb_in_progress = NULL; 291235751Sjimharris 292235751Sjimharris } else { 293235751Sjimharris isci_log_message(1, "ISCI", "queue %p %x\n", ccb, 294296891Simp scsiio_cdb_ptr(csio)); 295235751Sjimharris ccb->ccb_h.status |= CAM_SIM_QUEUED; 296235751Sjimharris 297235751Sjimharris TAILQ_INSERT_TAIL(&isci_remote_device->queued_ccbs, 298235751Sjimharris &ccb->ccb_h, sim_links.tqe); 299235751Sjimharris } 300234106Sjimharris } 301230557Sjimharris} 302230557Sjimharris 303230557Sjimharris/** 304230557Sjimharris * @brief This callback method asks the user to provide the physical 305230557Sjimharris * address for the supplied virtual address when building an 306230557Sjimharris * io request object. 307230557Sjimharris * 308230557Sjimharris * @param[in] controller This parameter is the core controller object 309230557Sjimharris * handle. 310230557Sjimharris * @param[in] io_request This parameter is the io request object handle 311230557Sjimharris * for which the physical address is being requested. 312298955Spfg * @param[in] virtual_address This parameter is the virtual address which 313230557Sjimharris * is to be returned as a physical address. 314230557Sjimharris * @param[out] physical_address The physical address for the supplied virtual 315230557Sjimharris * address. 316230557Sjimharris * 317230557Sjimharris * @return None. 318230557Sjimharris */ 319230557Sjimharrisvoid 320230557Sjimharrisscic_cb_io_request_get_physical_address(SCI_CONTROLLER_HANDLE_T controller, 321230557Sjimharris SCI_IO_REQUEST_HANDLE_T io_request, void *virtual_address, 322230557Sjimharris SCI_PHYSICAL_ADDRESS *physical_address) 323230557Sjimharris{ 324230557Sjimharris SCI_IO_REQUEST_HANDLE_T scif_request = 325230557Sjimharris sci_object_get_association(io_request); 326230557Sjimharris struct ISCI_REQUEST *isci_request = 327230557Sjimharris sci_object_get_association(scif_request); 328230557Sjimharris 329230557Sjimharris if(isci_request != NULL) { 330230557Sjimharris /* isci_request is not NULL, meaning this is a request initiated 331230557Sjimharris * by CAM or the isci layer (i.e. device reset for I/O 332230557Sjimharris * timeout). Therefore we can calculate the physical address 333230557Sjimharris * based on the address we stored in the struct ISCI_REQUEST 334230557Sjimharris * object. 335230557Sjimharris */ 336230557Sjimharris *physical_address = isci_request->physical_address + 337230557Sjimharris (uintptr_t)virtual_address - 338230557Sjimharris (uintptr_t)isci_request; 339230557Sjimharris } else { 340230557Sjimharris /* isci_request is NULL, meaning this is a request generated 341230557Sjimharris * internally by SCIL (i.e. for SMP requests or NCQ error 342230557Sjimharris * recovery). Therefore we calculate the physical address 343230557Sjimharris * based on the controller's uncached controller memory buffer, 344230557Sjimharris * since we know that this is what SCIL uses for internal 345230557Sjimharris * framework requests. 346230557Sjimharris */ 347230557Sjimharris SCI_CONTROLLER_HANDLE_T scif_controller = 348230557Sjimharris (SCI_CONTROLLER_HANDLE_T) sci_object_get_association(controller); 349230557Sjimharris struct ISCI_CONTROLLER *isci_controller = 350230557Sjimharris (struct ISCI_CONTROLLER *)sci_object_get_association(scif_controller); 351230557Sjimharris U64 virt_addr_offset = (uintptr_t)virtual_address - 352230557Sjimharris (U64)isci_controller->uncached_controller_memory.virtual_address; 353230557Sjimharris 354230557Sjimharris *physical_address = 355230557Sjimharris isci_controller->uncached_controller_memory.physical_address 356230557Sjimharris + virt_addr_offset; 357230557Sjimharris } 358230557Sjimharris} 359230557Sjimharris 360230557Sjimharris/** 361230557Sjimharris * @brief This callback method asks the user to provide the address for 362230557Sjimharris * the command descriptor block (CDB) associated with this IO request. 363230557Sjimharris * 364230557Sjimharris * @param[in] scif_user_io_request This parameter points to the user's 365230557Sjimharris * IO request object. It is a cookie that allows the user to 366230557Sjimharris * provide the necessary information for this callback. 367230557Sjimharris * 368230557Sjimharris * @return This method returns the virtual address of the CDB. 369230557Sjimharris */ 370230557Sjimharrisvoid * 371230557Sjimharrisscif_cb_io_request_get_cdb_address(void * scif_user_io_request) 372230557Sjimharris{ 373230557Sjimharris struct ISCI_IO_REQUEST *isci_request = 374230557Sjimharris (struct ISCI_IO_REQUEST *)scif_user_io_request; 375230557Sjimharris 376296891Simp return (scsiio_cdb_ptr(&isci_request->ccb->csio)); 377230557Sjimharris} 378230557Sjimharris 379230557Sjimharris/** 380230557Sjimharris * @brief This callback method asks the user to provide the length of 381230557Sjimharris * the command descriptor block (CDB) associated with this IO request. 382230557Sjimharris * 383230557Sjimharris * @param[in] scif_user_io_request This parameter points to the user's 384230557Sjimharris * IO request object. It is a cookie that allows the user to 385230557Sjimharris * provide the necessary information for this callback. 386230557Sjimharris * 387230557Sjimharris * @return This method returns the length of the CDB. 388230557Sjimharris */ 389230557Sjimharrisuint32_t 390230557Sjimharrisscif_cb_io_request_get_cdb_length(void * scif_user_io_request) 391230557Sjimharris{ 392230557Sjimharris struct ISCI_IO_REQUEST *isci_request = 393230557Sjimharris (struct ISCI_IO_REQUEST *)scif_user_io_request; 394230557Sjimharris 395230557Sjimharris return (isci_request->ccb->csio.cdb_len); 396230557Sjimharris} 397230557Sjimharris 398230557Sjimharris/** 399230557Sjimharris * @brief This callback method asks the user to provide the Logical Unit (LUN) 400230557Sjimharris * associated with this IO request. 401230557Sjimharris * 402230557Sjimharris * @note The contents of the value returned from this callback are defined 403230557Sjimharris * by the protocol standard (e.g. T10 SAS specification). Please 404230557Sjimharris * refer to the transport command information unit description 405230557Sjimharris * in the associated standard. 406230557Sjimharris * 407230557Sjimharris * @param[in] scif_user_io_request This parameter points to the user's 408230557Sjimharris * IO request object. It is a cookie that allows the user to 409230557Sjimharris * provide the necessary information for this callback. 410230557Sjimharris * 411230557Sjimharris * @return This method returns the LUN associated with this request. 412230557Sjimharris */ 413230557Sjimharrisuint32_t 414230557Sjimharrisscif_cb_io_request_get_lun(void * scif_user_io_request) 415230557Sjimharris{ 416230557Sjimharris struct ISCI_IO_REQUEST *isci_request = 417230557Sjimharris (struct ISCI_IO_REQUEST *)scif_user_io_request; 418230557Sjimharris 419230557Sjimharris return (isci_request->ccb->ccb_h.target_lun); 420230557Sjimharris} 421230557Sjimharris 422230557Sjimharris/** 423230557Sjimharris * @brief This callback method asks the user to provide the task attribute 424230557Sjimharris * associated with this IO request. 425230557Sjimharris * 426230557Sjimharris * @note The contents of the value returned from this callback are defined 427230557Sjimharris * by the protocol standard (e.g. T10 SAS specification). Please 428230557Sjimharris * refer to the transport command information unit description 429230557Sjimharris * in the associated standard. 430230557Sjimharris * 431230557Sjimharris * @param[in] scif_user_io_request This parameter points to the user's 432230557Sjimharris * IO request object. It is a cookie that allows the user to 433230557Sjimharris * provide the necessary information for this callback. 434230557Sjimharris * 435230557Sjimharris * @return This method returns the task attribute associated with this 436230557Sjimharris * IO request. 437230557Sjimharris */ 438230557Sjimharrisuint32_t 439230557Sjimharrisscif_cb_io_request_get_task_attribute(void * scif_user_io_request) 440230557Sjimharris{ 441230557Sjimharris struct ISCI_IO_REQUEST *isci_request = 442230557Sjimharris (struct ISCI_IO_REQUEST *)scif_user_io_request; 443230557Sjimharris uint32_t task_attribute; 444230557Sjimharris 445230557Sjimharris if((isci_request->ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) != 0) 446230557Sjimharris switch(isci_request->ccb->csio.tag_action) { 447230557Sjimharris case MSG_HEAD_OF_Q_TAG: 448230557Sjimharris task_attribute = SCI_SAS_HEAD_OF_QUEUE_ATTRIBUTE; 449230557Sjimharris break; 450230557Sjimharris 451230557Sjimharris case MSG_ORDERED_Q_TAG: 452230557Sjimharris task_attribute = SCI_SAS_ORDERED_ATTRIBUTE; 453230557Sjimharris break; 454230557Sjimharris 455230557Sjimharris case MSG_ACA_TASK: 456230557Sjimharris task_attribute = SCI_SAS_ACA_ATTRIBUTE; 457230557Sjimharris break; 458230557Sjimharris 459230557Sjimharris default: 460230557Sjimharris task_attribute = SCI_SAS_SIMPLE_ATTRIBUTE; 461230557Sjimharris break; 462230557Sjimharris } 463230557Sjimharris else 464230557Sjimharris task_attribute = SCI_SAS_SIMPLE_ATTRIBUTE; 465230557Sjimharris 466230557Sjimharris return (task_attribute); 467230557Sjimharris} 468230557Sjimharris 469230557Sjimharris/** 470230557Sjimharris * @brief This callback method asks the user to provide the command priority 471230557Sjimharris * associated with this IO request. 472230557Sjimharris * 473230557Sjimharris * @note The contents of the value returned from this callback are defined 474230557Sjimharris * by the protocol standard (e.g. T10 SAS specification). Please 475230557Sjimharris * refer to the transport command information unit description 476230557Sjimharris * in the associated standard. 477230557Sjimharris * 478230557Sjimharris * @param[in] scif_user_io_request This parameter points to the user's 479230557Sjimharris * IO request object. It is a cookie that allows the user to 480230557Sjimharris * provide the necessary information for this callback. 481230557Sjimharris * 482230557Sjimharris * @return This method returns the command priority associated with this 483230557Sjimharris * IO request. 484230557Sjimharris */ 485230557Sjimharrisuint32_t 486230557Sjimharrisscif_cb_io_request_get_command_priority(void * scif_user_io_request) 487230557Sjimharris{ 488230557Sjimharris return (0); 489230557Sjimharris} 490230557Sjimharris 491230557Sjimharris/** 492230557Sjimharris * @brief This method simply returns the virtual address associated 493230557Sjimharris * with the scsi_io and byte_offset supplied parameters. 494230557Sjimharris * 495230557Sjimharris * @note This callback is not utilized in the fast path. The expectation 496230557Sjimharris * is that this method is utilized for items such as SCSI to ATA 497230557Sjimharris * translation for commands like INQUIRY, READ CAPACITY, etc. 498230557Sjimharris * 499230557Sjimharris * @param[in] scif_user_io_request This parameter points to the user's 500230557Sjimharris * IO request object. It is a cookie that allows the user to 501230557Sjimharris * provide the necessary information for this callback. 502230557Sjimharris * @param[in] byte_offset This parameter specifies the offset into the data 503230557Sjimharris * buffers pointed to by the SGL. The byte offset starts at 0 504230557Sjimharris * and continues until the last byte pointed to be the last SGL 505230557Sjimharris * element. 506230557Sjimharris * 507230557Sjimharris * @return A virtual address pointer to the location specified by the 508230557Sjimharris * parameters. 509230557Sjimharris */ 510230557Sjimharrisuint8_t * 511230557Sjimharrisscif_cb_io_request_get_virtual_address_from_sgl(void * scif_user_io_request, 512230557Sjimharris uint32_t byte_offset) 513230557Sjimharris{ 514248778Sjimharris struct ISCI_IO_REQUEST *isci_request; 515248778Sjimharris union ccb *ccb; 516230557Sjimharris 517248778Sjimharris 518248778Sjimharris isci_request = scif_user_io_request; 519248778Sjimharris ccb = isci_request->ccb; 520248778Sjimharris 521248778Sjimharris /* 522248778Sjimharris * This callback is only invoked for SCSI/ATA translation of 523248778Sjimharris * PIO commands such as INQUIRY and READ_CAPACITY, to allow 524248778Sjimharris * the driver to write the translated data directly into the 525248778Sjimharris * data buffer. It is never invoked for READ/WRITE commands. 526248778Sjimharris * The driver currently assumes only READ/WRITE commands will 527248778Sjimharris * be unmapped. 528248778Sjimharris * 529248778Sjimharris * As a safeguard against future changes to unmapped commands, 530248778Sjimharris * add an explicit panic here should the DATA_MASK != VADDR. 531248778Sjimharris * Otherwise, we would return some garbage pointer back to the 532248778Sjimharris * caller which would result in a panic or more subtle data 533248778Sjimharris * corruption later on. 534248778Sjimharris */ 535248778Sjimharris if ((ccb->ccb_h.flags & CAM_DATA_MASK) != CAM_DATA_VADDR) 536248778Sjimharris panic("%s: requesting pointer into unmapped ccb", __func__); 537248778Sjimharris 538248778Sjimharris return (ccb->csio.data_ptr + byte_offset); 539230557Sjimharris} 540230557Sjimharris 541230557Sjimharris/** 542230557Sjimharris * @brief This callback method asks the user to provide the number of 543298955Spfg * bytes to be transferred as part of this request. 544230557Sjimharris * 545230557Sjimharris * @param[in] scif_user_io_request This parameter points to the user's 546230557Sjimharris * IO request object. It is a cookie that allows the user to 547230557Sjimharris * provide the necessary information for this callback. 548230557Sjimharris * 549230557Sjimharris * @return This method returns the number of payload data bytes to be 550298955Spfg * transferred for this IO request. 551230557Sjimharris */ 552230557Sjimharrisuint32_t 553230557Sjimharrisscif_cb_io_request_get_transfer_length(void * scif_user_io_request) 554230557Sjimharris{ 555230557Sjimharris struct ISCI_IO_REQUEST *isci_request = 556230557Sjimharris (struct ISCI_IO_REQUEST *)scif_user_io_request; 557230557Sjimharris 558230557Sjimharris return (isci_request->ccb->csio.dxfer_len); 559230557Sjimharris 560230557Sjimharris} 561230557Sjimharris 562230557Sjimharris/** 563230557Sjimharris * @brief This callback method asks the user to provide the data direction 564230557Sjimharris * for this request. 565230557Sjimharris * 566230557Sjimharris * @param[in] scif_user_io_request This parameter points to the user's 567230557Sjimharris * IO request object. It is a cookie that allows the user to 568230557Sjimharris * provide the necessary information for this callback. 569230557Sjimharris * 570230557Sjimharris * @return This method returns the value of SCI_IO_REQUEST_DATA_OUT, 571230557Sjimharris * SCI_IO_REQUEST_DATA_IN, or SCI_IO_REQUEST_NO_DATA. 572230557Sjimharris */ 573230557SjimharrisSCI_IO_REQUEST_DATA_DIRECTION 574230557Sjimharrisscif_cb_io_request_get_data_direction(void * scif_user_io_request) 575230557Sjimharris{ 576230557Sjimharris struct ISCI_IO_REQUEST *isci_request = 577230557Sjimharris (struct ISCI_IO_REQUEST *)scif_user_io_request; 578230557Sjimharris 579230557Sjimharris switch (isci_request->ccb->ccb_h.flags & CAM_DIR_MASK) { 580230557Sjimharris case CAM_DIR_IN: 581230557Sjimharris return (SCI_IO_REQUEST_DATA_IN); 582230557Sjimharris case CAM_DIR_OUT: 583230557Sjimharris return (SCI_IO_REQUEST_DATA_OUT); 584230557Sjimharris default: 585230557Sjimharris return (SCI_IO_REQUEST_NO_DATA); 586230557Sjimharris } 587230557Sjimharris} 588230557Sjimharris 589230557Sjimharris/** 590230557Sjimharris * @brief This callback method asks the user to provide the address 591230557Sjimharris * to where the next Scatter-Gather Element is located. 592230557Sjimharris * 593230557Sjimharris * Details regarding usage: 594230557Sjimharris * - Regarding the first SGE: the user should initialize an index, 595230557Sjimharris * or a pointer, prior to construction of the request that will 596230557Sjimharris * reference the very first scatter-gather element. This is 597230557Sjimharris * important since this method is called for every scatter-gather 598230557Sjimharris * element, including the first element. 599230557Sjimharris * - Regarding the last SGE: the user should return NULL from this 600230557Sjimharris * method when this method is called and the SGL has exhausted 601230557Sjimharris * all elements. 602230557Sjimharris * 603230557Sjimharris * @param[in] scif_user_io_request This parameter points to the user's 604230557Sjimharris * IO request object. It is a cookie that allows the user to 605230557Sjimharris * provide the necessary information for this callback. 606230557Sjimharris * @param[in] current_sge_address This parameter specifies the address for 607230557Sjimharris * the current SGE (i.e. the one that has just processed). 608230557Sjimharris * @param[out] next_sge An address specifying the location for the next scatter 609230557Sjimharris * gather element to be processed. 610230557Sjimharris * 611230557Sjimharris * @return None. 612230557Sjimharris */ 613230557Sjimharrisvoid 614230557Sjimharrisscif_cb_io_request_get_next_sge(void * scif_user_io_request, 615230557Sjimharris void * current_sge_address, void ** next_sge) 616230557Sjimharris{ 617230557Sjimharris struct ISCI_IO_REQUEST *isci_request = 618230557Sjimharris (struct ISCI_IO_REQUEST *)scif_user_io_request; 619230557Sjimharris 620230557Sjimharris if (isci_request->current_sge_index == isci_request->num_segments) 621230557Sjimharris *next_sge = NULL; 622230557Sjimharris else { 623230557Sjimharris bus_dma_segment_t *sge = 624230557Sjimharris &isci_request->sge[isci_request->current_sge_index]; 625230557Sjimharris 626230557Sjimharris isci_request->current_sge_index++; 627230557Sjimharris *next_sge = sge; 628230557Sjimharris } 629230557Sjimharris} 630230557Sjimharris 631230557Sjimharris/** 632230557Sjimharris * @brief This callback method asks the user to provide the contents of the 633230557Sjimharris * "address" field in the Scatter-Gather Element. 634230557Sjimharris * 635230557Sjimharris * @param[in] scif_user_io_request This parameter points to the user's 636230557Sjimharris * IO request object. It is a cookie that allows the user to 637230557Sjimharris * provide the necessary information for this callback. 638230557Sjimharris * @param[in] sge_address This parameter specifies the address for the 639230557Sjimharris * SGE from which to retrieve the address field. 640230557Sjimharris * 641230557Sjimharris * @return A physical address specifying the contents of the SGE's address 642230557Sjimharris * field. 643230557Sjimharris */ 644230557SjimharrisSCI_PHYSICAL_ADDRESS 645230557Sjimharrisscif_cb_sge_get_address_field(void *scif_user_io_request, void *sge_address) 646230557Sjimharris{ 647230557Sjimharris bus_dma_segment_t *sge = (bus_dma_segment_t *)sge_address; 648230557Sjimharris 649230557Sjimharris return ((SCI_PHYSICAL_ADDRESS)sge->ds_addr); 650230557Sjimharris} 651230557Sjimharris 652230557Sjimharris/** 653230557Sjimharris * @brief This callback method asks the user to provide the contents of the 654230557Sjimharris * "length" field in the Scatter-Gather Element. 655230557Sjimharris * 656230557Sjimharris * @param[in] scif_user_io_request This parameter points to the user's 657230557Sjimharris * IO request object. It is a cookie that allows the user to 658230557Sjimharris * provide the necessary information for this callback. 659230557Sjimharris * @param[in] sge_address This parameter specifies the address for the 660230557Sjimharris * SGE from which to retrieve the address field. 661230557Sjimharris * 662230557Sjimharris * @return This method returns the length field specified inside the SGE 663230557Sjimharris * referenced by the sge_address parameter. 664230557Sjimharris */ 665230557Sjimharrisuint32_t 666230557Sjimharrisscif_cb_sge_get_length_field(void *scif_user_io_request, void *sge_address) 667230557Sjimharris{ 668230557Sjimharris bus_dma_segment_t *sge = (bus_dma_segment_t *)sge_address; 669230557Sjimharris 670230557Sjimharris return ((uint32_t)sge->ds_len); 671230557Sjimharris} 672230557Sjimharris 673230557Sjimharrisvoid 674230557Sjimharrisisci_request_construct(struct ISCI_REQUEST *request, 675230557Sjimharris SCI_CONTROLLER_HANDLE_T scif_controller_handle, 676230557Sjimharris bus_dma_tag_t io_buffer_dma_tag, bus_addr_t physical_address) 677230557Sjimharris{ 678230557Sjimharris 679230557Sjimharris request->controller_handle = scif_controller_handle; 680230557Sjimharris request->dma_tag = io_buffer_dma_tag; 681230557Sjimharris request->physical_address = physical_address; 682230557Sjimharris bus_dmamap_create(request->dma_tag, 0, &request->dma_map); 683283291Sjkim callout_init(&request->timer, 1); 684230557Sjimharris} 685230557Sjimharris 686230557Sjimharrisstatic void 687230557Sjimharrisisci_io_request_construct(void *arg, bus_dma_segment_t *seg, int nseg, 688230557Sjimharris int error) 689230557Sjimharris{ 690230557Sjimharris union ccb *ccb; 691230557Sjimharris struct ISCI_IO_REQUEST *io_request = (struct ISCI_IO_REQUEST *)arg; 692230557Sjimharris SCI_REMOTE_DEVICE_HANDLE_T *device = io_request->parent.remote_device_handle; 693230557Sjimharris SCI_STATUS status; 694230557Sjimharris 695230557Sjimharris io_request->num_segments = nseg; 696230557Sjimharris io_request->sge = seg; 697230557Sjimharris ccb = io_request->ccb; 698230557Sjimharris 699243904Sjimharris if (error != 0) { 700230557Sjimharris ccb->ccb_h.status = CAM_REQ_INVALID; 701230557Sjimharris xpt_done(ccb); 702230557Sjimharris return; 703230557Sjimharris } 704230557Sjimharris 705231296Sjimharris status = scif_io_request_construct( 706230557Sjimharris io_request->parent.controller_handle, 707230557Sjimharris io_request->parent.remote_device_handle, 708230557Sjimharris SCI_CONTROLLER_INVALID_IO_TAG, (void *)io_request, 709230557Sjimharris (void *)((char*)io_request + sizeof(struct ISCI_IO_REQUEST)), 710230557Sjimharris &io_request->sci_object); 711230557Sjimharris 712231296Sjimharris if (status != SCI_SUCCESS) { 713230557Sjimharris isci_io_request_complete(io_request->parent.controller_handle, 714231296Sjimharris device, io_request, (SCI_IO_STATUS)status); 715230557Sjimharris return; 716230557Sjimharris } 717230557Sjimharris 718230557Sjimharris sci_object_set_association(io_request->sci_object, io_request); 719230557Sjimharris 720230557Sjimharris bus_dmamap_sync(io_request->parent.dma_tag, io_request->parent.dma_map, 721230557Sjimharris BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 722230557Sjimharris 723230557Sjimharris status = (SCI_STATUS)scif_controller_start_io( 724230557Sjimharris io_request->parent.controller_handle, device, 725230557Sjimharris io_request->sci_object, SCI_CONTROLLER_INVALID_IO_TAG); 726230557Sjimharris 727230557Sjimharris if (status != SCI_SUCCESS) { 728230557Sjimharris isci_io_request_complete(io_request->parent.controller_handle, 729231296Sjimharris device, io_request, (SCI_IO_STATUS)status); 730230557Sjimharris return; 731230557Sjimharris } 732230557Sjimharris 733230557Sjimharris if (ccb->ccb_h.timeout != CAM_TIME_INFINITY) 734274819Ssmh callout_reset_sbt(&io_request->parent.timer, 735274819Ssmh SBT_1MS * ccb->ccb_h.timeout, 0, isci_io_request_timeout, 736274819Ssmh io_request, 0); 737230557Sjimharris} 738230557Sjimharris 739230557Sjimharrisvoid 740230557Sjimharrisisci_io_request_execute_scsi_io(union ccb *ccb, 741230557Sjimharris struct ISCI_CONTROLLER *controller) 742230557Sjimharris{ 743230557Sjimharris target_id_t target_id = ccb->ccb_h.target_id; 744230557Sjimharris struct ISCI_REQUEST *request; 745230557Sjimharris struct ISCI_IO_REQUEST *io_request; 746230557Sjimharris struct ISCI_REMOTE_DEVICE *device = 747230557Sjimharris controller->remote_device[target_id]; 748230557Sjimharris int error; 749230557Sjimharris 750230557Sjimharris if (device == NULL) { 751230557Sjimharris ccb->ccb_h.status &= ~CAM_SIM_QUEUED; 752230557Sjimharris ccb->ccb_h.status &= ~CAM_STATUS_MASK; 753230557Sjimharris ccb->ccb_h.status |= CAM_DEV_NOT_THERE; 754230557Sjimharris xpt_done(ccb); 755230557Sjimharris return; 756230557Sjimharris } 757230557Sjimharris 758230557Sjimharris if (sci_pool_empty(controller->request_pool)) { 759230557Sjimharris ccb->ccb_h.status &= ~CAM_SIM_QUEUED; 760230557Sjimharris ccb->ccb_h.status &= ~CAM_STATUS_MASK; 761230557Sjimharris ccb->ccb_h.status |= CAM_REQUEUE_REQ; 762230557Sjimharris xpt_freeze_simq(controller->sim, 1); 763230557Sjimharris controller->is_frozen = TRUE; 764230557Sjimharris xpt_done(ccb); 765230557Sjimharris return; 766230557Sjimharris } 767230557Sjimharris 768230557Sjimharris ASSERT(device->is_resetting == FALSE); 769230557Sjimharris 770230557Sjimharris sci_pool_get(controller->request_pool, request); 771230557Sjimharris io_request = (struct ISCI_IO_REQUEST *)request; 772230557Sjimharris 773230557Sjimharris io_request->ccb = ccb; 774230557Sjimharris io_request->current_sge_index = 0; 775230557Sjimharris io_request->parent.remote_device_handle = device->sci_object; 776230557Sjimharris 777246713Skib error = bus_dmamap_load_ccb(io_request->parent.dma_tag, 778246713Skib io_request->parent.dma_map, ccb, 779246713Skib isci_io_request_construct, io_request, 0x0); 780246713Skib /* A resource shortage from BUSDMA will be automatically 781246713Skib * continued at a later point, pushing the CCB processing 782246713Skib * forward, which will in turn unfreeze the simq. 783246713Skib */ 784246713Skib if (error == EINPROGRESS) { 785246713Skib xpt_freeze_simq(controller->sim, 1); 786246713Skib ccb->ccb_h.flags |= CAM_RELEASE_SIMQ; 787246713Skib } 788230557Sjimharris} 789230557Sjimharris 790230557Sjimharrisvoid 791230557Sjimharrisisci_io_request_timeout(void *arg) 792230557Sjimharris{ 793230557Sjimharris struct ISCI_IO_REQUEST *request = (struct ISCI_IO_REQUEST *)arg; 794230557Sjimharris struct ISCI_REMOTE_DEVICE *remote_device = (struct ISCI_REMOTE_DEVICE *) 795230557Sjimharris sci_object_get_association(request->parent.remote_device_handle); 796230557Sjimharris struct ISCI_CONTROLLER *controller = remote_device->domain->controller; 797230557Sjimharris 798230557Sjimharris mtx_lock(&controller->lock); 799230557Sjimharris isci_remote_device_reset(remote_device, NULL); 800230557Sjimharris mtx_unlock(&controller->lock); 801230557Sjimharris} 802230557Sjimharris 803230557Sjimharris#if __FreeBSD_version >= 900026 804230557Sjimharris/** 805230557Sjimharris * @brief This callback method gets the size of and pointer to the buffer 806230557Sjimharris * (if any) containing the request buffer for an SMP request. 807230557Sjimharris * 808230557Sjimharris * @param[in] core_request This parameter specifies the SCI core's request 809230557Sjimharris * object associated with the SMP request. 810230557Sjimharris * @param[out] smp_request_buffer This parameter returns a pointer to the 811230557Sjimharris * payload portion of the SMP request - i.e. everything after 812230557Sjimharris * the SMP request header. 813230557Sjimharris * 814230557Sjimharris * @return Size of the request buffer in bytes. This does *not* include 815230557Sjimharris * the size of the SMP request header. 816230557Sjimharris */ 817230557Sjimharrisstatic uint32_t 818230557Sjimharrissmp_io_request_cb_get_request_buffer(SCI_IO_REQUEST_HANDLE_T core_request, 819230557Sjimharris uint8_t ** smp_request_buffer) 820230557Sjimharris{ 821230557Sjimharris struct ISCI_IO_REQUEST *isci_request = (struct ISCI_IO_REQUEST *) 822230557Sjimharris sci_object_get_association(sci_object_get_association(core_request)); 823230557Sjimharris 824230557Sjimharris *smp_request_buffer = isci_request->ccb->smpio.smp_request + 825230557Sjimharris sizeof(SMP_REQUEST_HEADER_T); 826230557Sjimharris 827230557Sjimharris return (isci_request->ccb->smpio.smp_request_len - 828230557Sjimharris sizeof(SMP_REQUEST_HEADER_T)); 829230557Sjimharris} 830230557Sjimharris 831230557Sjimharris/** 832230557Sjimharris * @brief This callback method gets the SMP function for an SMP request. 833230557Sjimharris * 834230557Sjimharris * @param[in] core_request This parameter specifies the SCI core's request 835230557Sjimharris * object associated with the SMP request. 836230557Sjimharris * 837230557Sjimharris * @return SMP function for the SMP request. 838230557Sjimharris */ 839230557Sjimharrisstatic uint8_t 840230557Sjimharrissmp_io_request_cb_get_function(SCI_IO_REQUEST_HANDLE_T core_request) 841230557Sjimharris{ 842230557Sjimharris struct ISCI_IO_REQUEST *isci_request = (struct ISCI_IO_REQUEST *) 843230557Sjimharris sci_object_get_association(sci_object_get_association(core_request)); 844230557Sjimharris SMP_REQUEST_HEADER_T *header = 845230557Sjimharris (SMP_REQUEST_HEADER_T *)isci_request->ccb->smpio.smp_request; 846230557Sjimharris 847230557Sjimharris return (header->function); 848230557Sjimharris} 849230557Sjimharris 850230557Sjimharris/** 851230557Sjimharris * @brief This callback method gets the SMP frame type for an SMP request. 852230557Sjimharris * 853230557Sjimharris * @param[in] core_request This parameter specifies the SCI core's request 854230557Sjimharris * object associated with the SMP request. 855230557Sjimharris * 856230557Sjimharris * @return SMP frame type for the SMP request. 857230557Sjimharris */ 858230557Sjimharrisstatic uint8_t 859230557Sjimharrissmp_io_request_cb_get_frame_type(SCI_IO_REQUEST_HANDLE_T core_request) 860230557Sjimharris{ 861230557Sjimharris struct ISCI_IO_REQUEST *isci_request = (struct ISCI_IO_REQUEST *) 862230557Sjimharris sci_object_get_association(sci_object_get_association(core_request)); 863230557Sjimharris SMP_REQUEST_HEADER_T *header = 864230557Sjimharris (SMP_REQUEST_HEADER_T *)isci_request->ccb->smpio.smp_request; 865230557Sjimharris 866230557Sjimharris return (header->smp_frame_type); 867230557Sjimharris} 868230557Sjimharris 869230557Sjimharris/** 870230557Sjimharris * @brief This callback method gets the allocated response length for an SMP request. 871230557Sjimharris * 872230557Sjimharris * @param[in] core_request This parameter specifies the SCI core's request 873230557Sjimharris * object associated with the SMP request. 874230557Sjimharris * 875230557Sjimharris * @return Allocated response length for the SMP request. 876230557Sjimharris */ 877230557Sjimharrisstatic uint8_t 878230557Sjimharrissmp_io_request_cb_get_allocated_response_length( 879230557Sjimharris SCI_IO_REQUEST_HANDLE_T core_request) 880230557Sjimharris{ 881230557Sjimharris struct ISCI_IO_REQUEST *isci_request = (struct ISCI_IO_REQUEST *) 882230557Sjimharris sci_object_get_association(sci_object_get_association(core_request)); 883230557Sjimharris SMP_REQUEST_HEADER_T *header = 884230557Sjimharris (SMP_REQUEST_HEADER_T *)isci_request->ccb->smpio.smp_request; 885230557Sjimharris 886230557Sjimharris return (header->allocated_response_length); 887230557Sjimharris} 888230557Sjimharris 889230557Sjimharrisstatic SCI_STATUS 890230557Sjimharrisisci_smp_request_construct(struct ISCI_IO_REQUEST *request) 891230557Sjimharris{ 892230557Sjimharris SCI_STATUS status; 893230557Sjimharris SCIC_SMP_PASSTHRU_REQUEST_CALLBACKS_T callbacks; 894230557Sjimharris 895230557Sjimharris status = scif_request_construct(request->parent.controller_handle, 896230557Sjimharris request->parent.remote_device_handle, SCI_CONTROLLER_INVALID_IO_TAG, 897230557Sjimharris (void *)request, 898230557Sjimharris (void *)((char*)request + sizeof(struct ISCI_IO_REQUEST)), 899230557Sjimharris &request->sci_object); 900230557Sjimharris 901230557Sjimharris if (status == SCI_SUCCESS) { 902230557Sjimharris callbacks.scic_cb_smp_passthru_get_request = 903230557Sjimharris &smp_io_request_cb_get_request_buffer; 904230557Sjimharris callbacks.scic_cb_smp_passthru_get_function = 905230557Sjimharris &smp_io_request_cb_get_function; 906230557Sjimharris callbacks.scic_cb_smp_passthru_get_frame_type = 907230557Sjimharris &smp_io_request_cb_get_frame_type; 908230557Sjimharris callbacks.scic_cb_smp_passthru_get_allocated_response_length = 909230557Sjimharris &smp_io_request_cb_get_allocated_response_length; 910230557Sjimharris 911230557Sjimharris /* create the smp passthrough part of the io request */ 912230557Sjimharris status = scic_io_request_construct_smp_pass_through( 913230557Sjimharris scif_io_request_get_scic_handle(request->sci_object), 914230557Sjimharris &callbacks); 915230557Sjimharris } 916230557Sjimharris 917230557Sjimharris return (status); 918230557Sjimharris} 919230557Sjimharris 920230557Sjimharrisvoid 921230557Sjimharrisisci_io_request_execute_smp_io(union ccb *ccb, 922230557Sjimharris struct ISCI_CONTROLLER *controller) 923230557Sjimharris{ 924230557Sjimharris SCI_STATUS status; 925230557Sjimharris target_id_t target_id = ccb->ccb_h.target_id; 926230557Sjimharris struct ISCI_REQUEST *request; 927230557Sjimharris struct ISCI_IO_REQUEST *io_request; 928230557Sjimharris SCI_REMOTE_DEVICE_HANDLE_T smp_device_handle; 929230557Sjimharris struct ISCI_REMOTE_DEVICE *end_device = controller->remote_device[target_id]; 930230557Sjimharris 931230557Sjimharris /* SMP commands are sent to an end device, because SMP devices are not 932230557Sjimharris * exposed to the kernel. It is our responsibility to use this method 933230557Sjimharris * to get the SMP device that contains the specified end device. If 934230557Sjimharris * the device is direct-attached, the handle will come back NULL, and 935230557Sjimharris * we'll just fail the SMP_IO with DEV_NOT_THERE. 936230557Sjimharris */ 937230557Sjimharris scif_remote_device_get_containing_device(end_device->sci_object, 938230557Sjimharris &smp_device_handle); 939230557Sjimharris 940230557Sjimharris if (smp_device_handle == NULL) { 941230557Sjimharris ccb->ccb_h.status &= ~CAM_SIM_QUEUED; 942230557Sjimharris ccb->ccb_h.status &= ~CAM_STATUS_MASK; 943230557Sjimharris ccb->ccb_h.status |= CAM_DEV_NOT_THERE; 944230557Sjimharris xpt_done(ccb); 945230557Sjimharris return; 946230557Sjimharris } 947230557Sjimharris 948230557Sjimharris if (sci_pool_empty(controller->request_pool)) { 949230557Sjimharris ccb->ccb_h.status &= ~CAM_SIM_QUEUED; 950230557Sjimharris ccb->ccb_h.status &= ~CAM_STATUS_MASK; 951230557Sjimharris ccb->ccb_h.status |= CAM_REQUEUE_REQ; 952230557Sjimharris xpt_freeze_simq(controller->sim, 1); 953230557Sjimharris controller->is_frozen = TRUE; 954230557Sjimharris xpt_done(ccb); 955230557Sjimharris return; 956230557Sjimharris } 957230557Sjimharris 958230557Sjimharris ASSERT(device->is_resetting == FALSE); 959230557Sjimharris 960230557Sjimharris sci_pool_get(controller->request_pool, request); 961230557Sjimharris io_request = (struct ISCI_IO_REQUEST *)request; 962230557Sjimharris 963230557Sjimharris io_request->ccb = ccb; 964230557Sjimharris io_request->parent.remote_device_handle = smp_device_handle; 965230557Sjimharris 966230557Sjimharris status = isci_smp_request_construct(io_request); 967230557Sjimharris 968230557Sjimharris if (status != SCI_SUCCESS) { 969230557Sjimharris isci_io_request_complete(controller->scif_controller_handle, 970231296Sjimharris smp_device_handle, io_request, (SCI_IO_STATUS)status); 971230557Sjimharris return; 972230557Sjimharris } 973230557Sjimharris 974230557Sjimharris sci_object_set_association(io_request->sci_object, io_request); 975230557Sjimharris 976230557Sjimharris status = (SCI_STATUS) scif_controller_start_io( 977230557Sjimharris controller->scif_controller_handle, smp_device_handle, 978230557Sjimharris io_request->sci_object, SCI_CONTROLLER_INVALID_IO_TAG); 979230557Sjimharris 980230557Sjimharris if (status != SCI_SUCCESS) { 981230557Sjimharris isci_io_request_complete(controller->scif_controller_handle, 982231296Sjimharris smp_device_handle, io_request, (SCI_IO_STATUS)status); 983230557Sjimharris return; 984230557Sjimharris } 985230557Sjimharris 986230557Sjimharris if (ccb->ccb_h.timeout != CAM_TIME_INFINITY) 987274819Ssmh callout_reset_sbt(&io_request->parent.timer, 988274819Ssmh SBT_1MS * ccb->ccb_h.timeout, 0, isci_io_request_timeout, 989274819Ssmh request, 0); 990230557Sjimharris} 991230557Sjimharris#endif 992