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diff --git a/drivers/net/wireless/iwlwifi/iwl-op-mode.h b/drivers/net/wireless/iwlwifi/iwl-op-mode.h
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+/******************************************************************************
+ *
+ * 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) 2007 - 2012 Intel Corporation. All rights reserved.
+ *
+ * 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 LICENSE.GPL.
+ *
+ * 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) 2005 - 2012 Intel Corporation. All rights reserved.
+ * 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.
+ *
+ *****************************************************************************/
+#ifndef __iwl_op_mode_h__
+#define __iwl_op_mode_h__
+
+struct iwl_op_mode;
+struct iwl_trans;
+struct sk_buff;
+struct iwl_device_cmd;
+struct iwl_rx_cmd_buffer;
+struct iwl_fw;
+
+/**
+ * DOC: Operational mode - what is it ?
+ *
+ * The operational mode (a.k.a. op_mode) is the layer that implements
+ * mac80211's handlers. It knows two APIs: mac80211's and the fw's. It uses
+ * the transport API to access the HW. The op_mode doesn't need to know how the
+ * underlying HW works, since the transport layer takes care of that.
+ *
+ * There can be several op_mode: i.e. different fw APIs will require two
+ * different op_modes. This is why the op_mode is virtualized.
+ */
+
+/**
+ * DOC: Life cycle of the Operational mode
+ *
+ * The operational mode has a very simple life cycle.
+ *
+ * 1) The driver layer (iwl-drv.c) chooses the op_mode based on the
+ * capabilities advertized by the fw file (in TLV format).
+ * 2) The driver layer starts the op_mode (ops->start)
+ * 3) The op_mode registers registers mac80211
+ * 4) The op_mode is governed by mac80211
+ * 5) The driver layer stops the op_mode
+ */
+
+/**
+ * struct iwl_op_mode_ops - op_mode specific operations
+ *
+ * The op_mode exports its ops so that external components can start it and
+ * interact with it. The driver layer typically calls the start and stop
+ * handlers, the transport layer calls the others.
+ *
+ * All the handlers MUST be implemented
+ *
+ * @start: start the op_mode. The transport layer is already allocated.
+ * May sleep
+ * @stop: stop the op_mode. Must free all the memory allocated.
+ * May sleep
+ * @rx: Rx notification to the op_mode. rxb is the Rx buffer itself. Cmd is the
+ * HCMD the this Rx responds to.
+ * Must be atomic.
+ * @queue_full: notifies that a HW queue is full. Ac is the ac of the queue
+ * Must be atomic
+ * @queue_not_full: notifies that a HW queue is not full any more.
+ * Ac is the ac of the queue. Must be atomic
+ * @hw_rf_kill:notifies of a change in the HW rf kill switch. True means that
+ * the radio is killed. Must be atomic.
+ * @free_skb: allows the transport layer to free skbs that haven't been
+ * reclaimed by the op_mode. This can happen when the driver is freed and
+ * there are Tx packets pending in the transport layer.
+ * Must be atomic
+ * @nic_error: error notification. Must be atomic
+ * @cmd_queue_full: Called when the command queue gets full. Must be atomic.
+ * @nic_config: configure NIC, called before firmware is started.
+ * May sleep
+ */
+struct iwl_op_mode_ops {
+ struct iwl_op_mode *(*start)(struct iwl_trans *trans,
+ const struct iwl_fw *fw);
+ void (*stop)(struct iwl_op_mode *op_mode);
+ int (*rx)(struct iwl_op_mode *op_mode, struct iwl_rx_cmd_buffer *rxb,
+ struct iwl_device_cmd *cmd);
+ void (*queue_full)(struct iwl_op_mode *op_mode, u8 ac);
+ void (*queue_not_full)(struct iwl_op_mode *op_mode, u8 ac);
+ void (*hw_rf_kill)(struct iwl_op_mode *op_mode, bool state);
+ void (*free_skb)(struct iwl_op_mode *op_mode, struct sk_buff *skb);
+ void (*nic_error)(struct iwl_op_mode *op_mode);
+ void (*cmd_queue_full)(struct iwl_op_mode *op_mode);
+ void (*nic_config)(struct iwl_op_mode *op_mode);
+};
+
+/**
+ * struct iwl_op_mode - operational mode
+ *
+ * This holds an implementation of the mac80211 / fw API.
+ *
+ * @ops - pointer to its own ops
+ */
+struct iwl_op_mode {
+ const struct iwl_op_mode_ops *ops;
+ const struct iwl_trans *trans;
+
+ char op_mode_specific[0] __aligned(sizeof(void *));
+};
+
+static inline void iwl_op_mode_stop(struct iwl_op_mode *op_mode)
+{
+ might_sleep();
+
+ op_mode->ops->stop(op_mode);
+}
+
+static inline int iwl_op_mode_rx(struct iwl_op_mode *op_mode,
+ struct iwl_rx_cmd_buffer *rxb,
+ struct iwl_device_cmd *cmd)
+{
+ return op_mode->ops->rx(op_mode, rxb, cmd);
+}
+
+static inline void iwl_op_mode_queue_full(struct iwl_op_mode *op_mode, u8 ac)
+{
+ op_mode->ops->queue_full(op_mode, ac);
+}
+
+static inline void iwl_op_mode_queue_not_full(struct iwl_op_mode *op_mode,
+ u8 ac)
+{
+ op_mode->ops->queue_not_full(op_mode, ac);
+}
+
+static inline void iwl_op_mode_hw_rf_kill(struct iwl_op_mode *op_mode,
+ bool state)
+{
+ op_mode->ops->hw_rf_kill(op_mode, state);
+}
+
+static inline void iwl_op_mode_free_skb(struct iwl_op_mode *op_mode,
+ struct sk_buff *skb)
+{
+ op_mode->ops->free_skb(op_mode, skb);
+}
+
+static inline void iwl_op_mode_nic_error(struct iwl_op_mode *op_mode)
+{
+ op_mode->ops->nic_error(op_mode);
+}
+
+static inline void iwl_op_mode_cmd_queue_full(struct iwl_op_mode *op_mode)
+{
+ op_mode->ops->cmd_queue_full(op_mode);
+}
+
+static inline void iwl_op_mode_nic_config(struct iwl_op_mode *op_mode)
+{
+ might_sleep();
+ op_mode->ops->nic_config(op_mode);
+}
+
+/*****************************************************
+* Op mode layers implementations
+******************************************************/
+extern const struct iwl_op_mode_ops iwl_dvm_ops;
+
+#endif /* __iwl_op_mode_h__ */