These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / drivers / net / wireless / iwlwifi / iwl-trans.c

diff --git a/kernel/drivers/net/wireless/iwlwifi/iwl-trans.c b/kernel/drivers/net/wireless/iwlwifi/iwl-trans.c
new file mode 100644 (file)
index 0000000..7161096
--- /dev/null
+++ b/kernel/drivers/net/wireless/iwlwifi/iwl-trans.c
@@ -0,0 +1,114 @@
+/******************************************************************************
+ *
+ * This file is provided under a dual BSD/GPLv2 license.  When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2015 Intel Mobile Communications GmbH
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
+ * USA
+ *
+ * The full GNU General Public License is included in this distribution
+ * in the file called COPYING.
+ *
+ * Contact Information:
+ *  Intel Linux Wireless <ilw@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2015 Intel Mobile Communications GmbH
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *  * Neither the name Intel Corporation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *****************************************************************************/
+#include <linux/kernel.h>
+#include "iwl-trans.h"
+
+struct iwl_trans *iwl_trans_alloc(unsigned int priv_size,
+                                 struct device *dev,
+                                 const struct iwl_cfg *cfg,
+                                 const struct iwl_trans_ops *ops,
+                                 size_t dev_cmd_headroom)
+{
+       struct iwl_trans *trans;
+#ifdef CONFIG_LOCKDEP
+       static struct lock_class_key __key;
+#endif
+
+       trans = kzalloc(sizeof(*trans) + priv_size, GFP_KERNEL);
+       if (!trans)
+               return NULL;
+
+#ifdef CONFIG_LOCKDEP
+       lockdep_init_map(&trans->sync_cmd_lockdep_map, "sync_cmd_lockdep_map",
+                        &__key, 0);
+#endif
+
+       trans->dev = dev;
+       trans->cfg = cfg;
+       trans->ops = ops;
+       trans->dev_cmd_headroom = dev_cmd_headroom;
+       trans->num_rx_queues = 1;
+
+       snprintf(trans->dev_cmd_pool_name, sizeof(trans->dev_cmd_pool_name),
+                "iwl_cmd_pool:%s", dev_name(trans->dev));
+       trans->dev_cmd_pool =
+               kmem_cache_create(trans->dev_cmd_pool_name,
+                                 sizeof(struct iwl_device_cmd)
+                                 + trans->dev_cmd_headroom,
+                                 sizeof(void *),
+                                 SLAB_HWCACHE_ALIGN,
+                                 NULL);
+       if (!trans->dev_cmd_pool)
+               goto free;
+
+       return trans;
+ free:
+       kfree(trans);
+       return NULL;
+}
+
+void iwl_trans_free(struct iwl_trans *trans)
+{
+       kmem_cache_destroy(trans->dev_cmd_pool);
+       kfree(trans);
+}