blob: ccd317b6408fe1cc2a45cc79798eed9ee316dc71 [file] [log] [blame]
Johannes Berg7b501d12015-05-22 11:28:58 +02001/******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
8 * Copyright(c) 2015 Intel Mobile Communications GmbH
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 of the GNU General Public License as
12 * published by the Free Software Foundation.
13 *
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
22 * USA
23 *
24 * The full GNU General Public License is included in this distribution
25 * in the file called COPYING.
26 *
27 * Contact Information:
Emmanuel Grumbachd01c5362015-11-17 15:39:56 +020028 * Intel Linux Wireless <linuxwifi@intel.com>
Johannes Berg7b501d12015-05-22 11:28:58 +020029 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
30 *
31 * BSD LICENSE
32 *
33 * Copyright(c) 2015 Intel Mobile Communications GmbH
34 * All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 *
40 * * Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * * Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in
44 * the documentation and/or other materials provided with the
45 * distribution.
46 * * Neither the name Intel Corporation nor the names of its
47 * contributors may be used to endorse or promote products derived
48 * from this software without specific prior written permission.
49 *
50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
51 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
52 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
53 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
54 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
61 *
62 *****************************************************************************/
63#include <linux/kernel.h>
64#include "iwl-trans.h"
65
66struct iwl_trans *iwl_trans_alloc(unsigned int priv_size,
67 struct device *dev,
68 const struct iwl_cfg *cfg,
69 const struct iwl_trans_ops *ops,
70 size_t dev_cmd_headroom)
71{
72 struct iwl_trans *trans;
73#ifdef CONFIG_LOCKDEP
74 static struct lock_class_key __key;
75#endif
76
77 trans = kzalloc(sizeof(*trans) + priv_size, GFP_KERNEL);
78 if (!trans)
79 return NULL;
80
81#ifdef CONFIG_LOCKDEP
82 lockdep_init_map(&trans->sync_cmd_lockdep_map, "sync_cmd_lockdep_map",
83 &__key, 0);
84#endif
85
86 trans->dev = dev;
87 trans->cfg = cfg;
88 trans->ops = ops;
89 trans->dev_cmd_headroom = dev_cmd_headroom;
Johannes Berg56882e62015-05-22 11:33:12 +020090 trans->num_rx_queues = 1;
Johannes Berg7b501d12015-05-22 11:28:58 +020091
92 snprintf(trans->dev_cmd_pool_name, sizeof(trans->dev_cmd_pool_name),
93 "iwl_cmd_pool:%s", dev_name(trans->dev));
94 trans->dev_cmd_pool =
95 kmem_cache_create(trans->dev_cmd_pool_name,
96 sizeof(struct iwl_device_cmd)
97 + trans->dev_cmd_headroom,
98 sizeof(void *),
99 SLAB_HWCACHE_ALIGN,
100 NULL);
101 if (!trans->dev_cmd_pool)
102 goto free;
103
104 return trans;
105 free:
106 kfree(trans);
107 return NULL;
108}
109
110void iwl_trans_free(struct iwl_trans *trans)
111{
112 kmem_cache_destroy(trans->dev_cmd_pool);
113 kfree(trans);
114}