2 * SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0
4 * This file is provided under a dual BSD/GPLv2 license. When using or
5 * redistributing this file, you may do so under either license.
9 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of version 2 of the GNU General Public License as
13 * published by the Free Software Foundation.
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
23 * The full GNU General Public License is included in this distribution
24 * in the file called LICENSE.GPL.
28 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
29 * All rights reserved.
31 * Redistribution and use in source and binary forms, with or without
32 * modification, are permitted provided that the following conditions
35 * * Redistributions of source code must retain the above copyright
36 * notice, this list of conditions and the following disclaimer.
37 * * Redistributions in binary form must reproduce the above copyright
38 * notice, this list of conditions and the following disclaimer in
39 * the documentation and/or other materials provided with the
42 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
43 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
44 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
45 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
46 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
47 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
48 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
49 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
50 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
51 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
52 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
55 #include <sys/cdefs.h>
56 __FBSDID("$FreeBSD$");
61 * @brief This file contains all of method implementations specific to
62 * the high priority request queue (HPRQ). See the
63 * scif_sas_high_priority_request_queue.h file for additional
67 #include <dev/isci/scil/scif_sas_high_priority_request_queue.h>
69 #include <dev/isci/scil/scif_sas_logger.h>
70 #include <dev/isci/scil/scif_sas_io_request.h>
71 #include <dev/isci/scil/scif_sas_controller.h>
74 * @brief This method initializes the fields of the HPRQ. It should be
75 * called during the construction of the object containing or
76 * utilizing it (i.e. SCIF_SAS_CONTROLLER).
78 * @param[in] fw_hprq This parameter specific the high priority request
79 * queue object being constructed.
83 void scif_sas_high_priority_request_queue_construct(
84 SCIF_SAS_HIGH_PRIORITY_REQUEST_QUEUE_T * fw_hprq,
85 SCI_BASE_LOGGER_T * logger
90 SCIF_LOG_OBJECT_CONTROLLER | SCIF_LOG_OBJECT_DOMAIN_DISCOVERY,
91 "scif_sas_high_priority_request_queue_construct(0x%x,0x%x) enter\n",
95 sci_base_object_construct((SCI_BASE_OBJECT_T*) &fw_hprq->lock, logger);
96 fw_hprq->lock.level = SCI_LOCK_LEVEL_NONE;
98 sci_pool_initialize(fw_hprq->pool);
102 * @brief This method will ensure all internal requests destined for
103 * devices contained in the supplied domain are properly removed
104 * from the high priority request queue.
106 * @param[in] fw_hprq This parameter specifies the high priority request
107 * queue object for which to attempt to remove elements.
108 * @param[in] fw_domain This parameter specifies the domain for which to
109 * remove all high priority requests.
113 void scif_sas_high_priority_request_queue_purge_domain(
114 SCIF_SAS_HIGH_PRIORITY_REQUEST_QUEUE_T * fw_hprq,
115 SCIF_SAS_DOMAIN_T * fw_domain
118 SCIF_SAS_IO_REQUEST_T * fw_io;
119 POINTER_UINT io_address;
124 sci_base_object_get_logger(&fw_hprq->lock),
125 SCIF_LOG_OBJECT_CONTROLLER | SCIF_LOG_OBJECT_DOMAIN_DISCOVERY,
126 "scif_sas_high_priority_request_queue_purge_domain(0x%x,0x%x) enter\n",
130 element_count = sci_pool_count(fw_hprq->pool);
132 scif_cb_lock_acquire(fw_domain->controller, &fw_hprq->lock);
134 for (index = 0; index < element_count; index++)
136 sci_pool_get(fw_hprq->pool, io_address);
138 fw_io = (SCIF_SAS_IO_REQUEST_T*) io_address;
140 // If the high priority request is not intended for this domain,
141 // then it can be left in the pool.
142 if (fw_io->parent.device->domain != fw_domain)
144 sci_pool_put(fw_hprq->pool, io_address);
148 if (fw_io->parent.is_internal)
150 SCIF_SAS_INTERNAL_IO_REQUEST_T * fw_internal_io =
151 (SCIF_SAS_INTERNAL_IO_REQUEST_T *)fw_io;
153 // The request was intended for a device in the domain. Put it
154 // back in the pool of freely available internal request memory
155 // objects. The internal IO's timer is to be destoyed.
156 scif_sas_internal_io_request_destruct(fw_domain->controller, fw_internal_io);
161 scif_cb_lock_release(fw_domain->controller, &fw_hprq->lock);