1230557Sjimharris/*- 2230557Sjimharris * This file is provided under a dual BSD/GPLv2 license. When using or 3230557Sjimharris * redistributing this file, you may do so under either license. 4230557Sjimharris * 5230557Sjimharris * GPL LICENSE SUMMARY 6230557Sjimharris * 7230557Sjimharris * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. 8230557Sjimharris * 9230557Sjimharris * This program is free software; you can redistribute it and/or modify 10230557Sjimharris * it under the terms of version 2 of the GNU General Public License as 11230557Sjimharris * published by the Free Software Foundation. 12230557Sjimharris * 13230557Sjimharris * This program is distributed in the hope that it will be useful, but 14230557Sjimharris * WITHOUT ANY WARRANTY; without even the implied warranty of 15230557Sjimharris * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16230557Sjimharris * General Public License for more details. 17230557Sjimharris * 18230557Sjimharris * You should have received a copy of the GNU General Public License 19230557Sjimharris * along with this program; if not, write to the Free Software 20230557Sjimharris * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. 21230557Sjimharris * The full GNU General Public License is included in this distribution 22230557Sjimharris * in the file called LICENSE.GPL. 23230557Sjimharris * 24230557Sjimharris * BSD LICENSE 25230557Sjimharris * 26230557Sjimharris * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. 27230557Sjimharris * All rights reserved. 28230557Sjimharris * 29230557Sjimharris * Redistribution and use in source and binary forms, with or without 30230557Sjimharris * modification, are permitted provided that the following conditions 31230557Sjimharris * are met: 32230557Sjimharris * 33230557Sjimharris * * Redistributions of source code must retain the above copyright 34230557Sjimharris * notice, this list of conditions and the following disclaimer. 35230557Sjimharris * * Redistributions in binary form must reproduce the above copyright 36230557Sjimharris * notice, this list of conditions and the following disclaimer in 37230557Sjimharris * the documentation and/or other materials provided with the 38230557Sjimharris * distribution. 39230557Sjimharris * 40230557Sjimharris * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 41230557Sjimharris * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 42230557Sjimharris * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 43230557Sjimharris * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 44230557Sjimharris * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 45230557Sjimharris * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 46230557Sjimharris * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 47230557Sjimharris * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 48230557Sjimharris * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 49230557Sjimharris * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 50230557Sjimharris * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 51230557Sjimharris */ 52230557Sjimharris 53230557Sjimharris#include <sys/cdefs.h> 54230557Sjimharris__FBSDID("$FreeBSD$"); 55230557Sjimharris 56230557Sjimharris/** 57230557Sjimharris * @file 58230557Sjimharris * 59230557Sjimharris * @brief This file contains all of method implementations specific to 60230557Sjimharris * the high priority request queue (HPRQ). See the 61230557Sjimharris * scif_sas_high_priority_request_queue.h file for additional 62230557Sjimharris * information. 63230557Sjimharris */ 64230557Sjimharris 65230557Sjimharris#include <dev/isci/scil/scif_sas_high_priority_request_queue.h> 66230557Sjimharris 67230557Sjimharris#include <dev/isci/scil/scif_sas_logger.h> 68230557Sjimharris#include <dev/isci/scil/scif_sas_io_request.h> 69230557Sjimharris#include <dev/isci/scil/scif_sas_controller.h> 70230557Sjimharris 71230557Sjimharris/** 72230557Sjimharris * @brief This method initializes the fields of the HPRQ. It should be 73230557Sjimharris * called during the construction of the object containing or 74230557Sjimharris * utilizing it (i.e. SCIF_SAS_CONTROLLER). 75230557Sjimharris * 76230557Sjimharris * @param[in] fw_hprq This parameter specific the high priority request 77230557Sjimharris * queue object being constructed. 78230557Sjimharris * 79230557Sjimharris * @return none 80230557Sjimharris */ 81230557Sjimharrisvoid scif_sas_high_priority_request_queue_construct( 82230557Sjimharris SCIF_SAS_HIGH_PRIORITY_REQUEST_QUEUE_T * fw_hprq, 83230557Sjimharris SCI_BASE_LOGGER_T * logger 84230557Sjimharris) 85230557Sjimharris{ 86230557Sjimharris SCIF_LOG_TRACE(( 87230557Sjimharris logger, 88230557Sjimharris SCIF_LOG_OBJECT_CONTROLLER | SCIF_LOG_OBJECT_DOMAIN_DISCOVERY, 89230557Sjimharris "scif_sas_high_priority_request_queue_construct(0x%x,0x%x) enter\n", 90230557Sjimharris fw_hprq, logger 91230557Sjimharris )); 92230557Sjimharris 93230557Sjimharris sci_base_object_construct((SCI_BASE_OBJECT_T*) &fw_hprq->lock, logger); 94230557Sjimharris fw_hprq->lock.level = SCI_LOCK_LEVEL_NONE; 95230557Sjimharris 96230557Sjimharris sci_pool_initialize(fw_hprq->pool); 97230557Sjimharris} 98230557Sjimharris 99230557Sjimharris/** 100230557Sjimharris * @brief This method will ensure all internal requests destined for 101230557Sjimharris * devices contained in the supplied domain are properly removed 102230557Sjimharris * from the high priority request queue. 103230557Sjimharris * 104230557Sjimharris * @param[in] fw_hprq This parameter specifies the high priority request 105230557Sjimharris * queue object for which to attempt to remove elements. 106230557Sjimharris * @param[in] fw_domain This parameter specifies the domain for which to 107230557Sjimharris * remove all high priority requests. 108230557Sjimharris * 109230557Sjimharris * @return none 110230557Sjimharris */ 111230557Sjimharrisvoid scif_sas_high_priority_request_queue_purge_domain( 112230557Sjimharris SCIF_SAS_HIGH_PRIORITY_REQUEST_QUEUE_T * fw_hprq, 113230557Sjimharris SCIF_SAS_DOMAIN_T * fw_domain 114230557Sjimharris) 115230557Sjimharris{ 116230557Sjimharris SCIF_SAS_IO_REQUEST_T * fw_io; 117230557Sjimharris POINTER_UINT io_address; 118230557Sjimharris U32 index; 119230557Sjimharris U32 element_count; 120230557Sjimharris 121230557Sjimharris SCIF_LOG_TRACE(( 122230557Sjimharris sci_base_object_get_logger(&fw_hprq->lock), 123230557Sjimharris SCIF_LOG_OBJECT_CONTROLLER | SCIF_LOG_OBJECT_DOMAIN_DISCOVERY, 124230557Sjimharris "scif_sas_high_priority_request_queue_purge_domain(0x%x,0x%x) enter\n", 125230557Sjimharris fw_hprq, fw_domain 126230557Sjimharris )); 127230557Sjimharris 128230557Sjimharris element_count = sci_pool_count(fw_hprq->pool); 129230557Sjimharris 130230557Sjimharris scif_cb_lock_acquire(fw_domain->controller, &fw_hprq->lock); 131230557Sjimharris 132230557Sjimharris for (index = 0; index < element_count; index++) 133230557Sjimharris { 134230557Sjimharris sci_pool_get(fw_hprq->pool, io_address); 135230557Sjimharris 136230557Sjimharris fw_io = (SCIF_SAS_IO_REQUEST_T*) io_address; 137230557Sjimharris 138230557Sjimharris // If the high priority request is not intended for this domain, 139230557Sjimharris // then it can be left in the pool. 140230557Sjimharris if (fw_io->parent.device->domain != fw_domain) 141230557Sjimharris { 142230557Sjimharris sci_pool_put(fw_hprq->pool, io_address); 143230557Sjimharris } 144230557Sjimharris else 145230557Sjimharris { 146230557Sjimharris if (fw_io->parent.is_internal) 147230557Sjimharris { 148230557Sjimharris SCIF_SAS_INTERNAL_IO_REQUEST_T * fw_internal_io = 149230557Sjimharris (SCIF_SAS_INTERNAL_IO_REQUEST_T *)fw_io; 150230557Sjimharris 151230557Sjimharris // The request was intended for a device in the domain. Put it 152230557Sjimharris // back in the pool of freely available internal request memory 153230557Sjimharris // objects. The internal IO's timer is to be destoyed. 154230557Sjimharris scif_sas_internal_io_request_destruct(fw_domain->controller, fw_internal_io); 155230557Sjimharris } 156230557Sjimharris } 157230557Sjimharris } 158230557Sjimharris 159230557Sjimharris scif_cb_lock_release(fw_domain->controller, &fw_hprq->lock); 160230557Sjimharris} 161230557Sjimharris 162