1 files changed, 679 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
new file mode 100644
index 000000000000..983dca3f888a
--- /dev/null
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -0,0 +1,679 @@
+/******************************************************************************
+ *
+ * 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) 2012 - 2013 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) 2012 - 2013 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.
+ *
+ *****************************************************************************/
+#include <linux/module.h>
+#include <net/mac80211.h>
+
+#include "iwl-notif-wait.h"
+#include "iwl-trans.h"
+#include "iwl-op-mode.h"
+#include "iwl-fw.h"
+#include "iwl-debug.h"
+#include "iwl-drv.h"
+#include "iwl-modparams.h"
+#include "mvm.h"
+#include "iwl-phy-db.h"
+#include "iwl-eeprom-parse.h"
+#include "iwl-csr.h"
+#include "iwl-io.h"
+#include "iwl-prph.h"
+#include "rs.h"
+#include "fw-api-scan.h"
+#include "time-event.h"
+
+/*
+ * module name, copyright, version, etc.
+ */
+#define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux"
+
+#define DRV_VERSION     IWLWIFI_VERSION
+
+MODULE_DESCRIPTION(DRV_DESCRIPTION);
+MODULE_VERSION(DRV_VERSION);
+MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
+MODULE_LICENSE("GPL");
+
+static const struct iwl_op_mode_ops iwl_mvm_ops;
+
+struct iwl_mvm_mod_params iwlmvm_mod_params = {
+        .power_scheme = IWL_POWER_SCHEME_BPS,
+        /* rest of fields are 0 by default */
+};
+
+module_param_named(init_dbg, iwlmvm_mod_params.init_dbg, bool, S_IRUGO);
+MODULE_PARM_DESC(init_dbg,
+                 "set to true to debug an ASSERT in INIT fw (default: false");
+module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, S_IRUGO);
+MODULE_PARM_DESC(power_scheme,
+                 "power management scheme: 1-active, 2-balanced, 3-low power, default: 2");
+
+/*
+ * module init and exit functions
+ */
+static int __init iwl_mvm_init(void)
+{
+        int ret;
+
+        ret = iwl_mvm_rate_control_register();
+        if (ret) {
+                pr_err("Unable to register rate control algorithm: %d\n", ret);
+                return ret;
+        }
+
+        ret = iwl_opmode_register("iwlmvm", &iwl_mvm_ops);
+
+        if (ret) {
+                pr_err("Unable to register MVM op_mode: %d\n", ret);
+                iwl_mvm_rate_control_unregister();
+        }
+
+        return ret;
+}
+module_init(iwl_mvm_init);
+
+static void __exit iwl_mvm_exit(void)
+{
+        iwl_opmode_deregister("iwlmvm");
+        iwl_mvm_rate_control_unregister();
+}
+module_exit(iwl_mvm_exit);
+
+static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode)
+{
+        struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
+        u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash;
+        u32 reg_val = 0;
+
+        /*
+         * We can't upload the correct value to the INIT image
+         * as we don't have nvm_data by that time.
+         *
+         * TODO: Figure out what we should do here
+         */
+        if (mvm->nvm_data) {
+                radio_cfg_type = mvm->nvm_data->radio_cfg_type;
+                radio_cfg_step = mvm->nvm_data->radio_cfg_step;
+                radio_cfg_dash = mvm->nvm_data->radio_cfg_dash;
+        } else {
+                radio_cfg_type = 0;
+                radio_cfg_step = 0;
+                radio_cfg_dash = 0;
+        }
+
+        /* SKU control */
+        reg_val |= CSR_HW_REV_STEP(mvm->trans->hw_rev) <<
+                                CSR_HW_IF_CONFIG_REG_POS_MAC_STEP;
+        reg_val |= CSR_HW_REV_DASH(mvm->trans->hw_rev) <<
+                                CSR_HW_IF_CONFIG_REG_POS_MAC_DASH;
+
+        /* radio configuration */
+        reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE;
+        reg_val |= radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP;
+        reg_val |= radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH;
+
+        WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) &
+                 ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE);
+
+        /* silicon bits */
+        reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI;
+        reg_val |= CSR_HW_IF_CONFIG_REG_BIT_MAC_SI;
+
+        iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG,
+                                CSR_HW_IF_CONFIG_REG_MSK_MAC_DASH |
+                                CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP |
+                                CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE |
+                                CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP |
+                                CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH |
+                                CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
+                                CSR_HW_IF_CONFIG_REG_BIT_MAC_SI,
+                                reg_val);
+
+        IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type,
+                       radio_cfg_step, radio_cfg_dash);
+
+        /*
+         * W/A : NIC is stuck in a reset state after Early PCIe power off
+         * (PCIe power is lost before PERST# is asserted), causing ME FW
+         * to lose ownership and not being able to obtain it back.
+         */
+        iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG,
+                               APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS,
+                               ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS);
+}
+
+struct iwl_rx_handlers {
+        u8 cmd_id;
+        bool async;
+        int (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
+                  struct iwl_device_cmd *cmd);
+};
+
+#define RX_HANDLER(_cmd_id, _fn, _async)        \
+        { .cmd_id = _cmd_id , .fn = _fn , .async = _async }
+
+/*
+ * Handlers for fw notifications
+ * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME
+ * This list should be in order of frequency for performance purposes.
+ *
+ * The handler can be SYNC - this means that it will be called in the Rx path
+ * which can't acquire mvm->mutex. If the handler needs to hold mvm->mutex (and
+ * only in this case!), it should be set as ASYNC. In that case, it will be
+ * called from a worker with mvm->mutex held.
+ */
+static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = {
+        RX_HANDLER(REPLY_RX_MPDU_CMD, iwl_mvm_rx_rx_mpdu, false),
+        RX_HANDLER(REPLY_RX_PHY_CMD, iwl_mvm_rx_rx_phy_cmd, false),
+        RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, false),
+        RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, false),
+        RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif, false),
+
+        RX_HANDLER(SCAN_REQUEST_CMD, iwl_mvm_rx_scan_response, false),
+        RX_HANDLER(SCAN_COMPLETE_NOTIFICATION, iwl_mvm_rx_scan_complete, false),
+
+        RX_HANDLER(RADIO_VERSION_NOTIFICATION, iwl_mvm_rx_radio_ver, false),
+        RX_HANDLER(CARD_STATE_NOTIFICATION, iwl_mvm_rx_card_state_notif, false),
+
+        RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, false),
+};
+#undef RX_HANDLER
+#define CMD(x) [x] = #x
+
+static const char *iwl_mvm_cmd_strings[REPLY_MAX] = {
+        CMD(MVM_ALIVE),
+        CMD(REPLY_ERROR),
+        CMD(INIT_COMPLETE_NOTIF),
+        CMD(PHY_CONTEXT_CMD),
+        CMD(MGMT_MCAST_KEY),
+        CMD(TX_CMD),
+        CMD(TXPATH_FLUSH),
+        CMD(MAC_CONTEXT_CMD),
+        CMD(TIME_EVENT_CMD),
+        CMD(TIME_EVENT_NOTIFICATION),
+        CMD(BINDING_CONTEXT_CMD),
+        CMD(TIME_QUOTA_CMD),
+        CMD(RADIO_VERSION_NOTIFICATION),
+        CMD(SCAN_REQUEST_CMD),
+        CMD(SCAN_ABORT_CMD),
+        CMD(SCAN_START_NOTIFICATION),
+        CMD(SCAN_RESULTS_NOTIFICATION),
+        CMD(SCAN_COMPLETE_NOTIFICATION),
+        CMD(NVM_ACCESS_CMD),
+        CMD(PHY_CONFIGURATION_CMD),
+        CMD(CALIB_RES_NOTIF_PHY_DB),
+        CMD(SET_CALIB_DEFAULT_CMD),
+        CMD(CALIBRATION_COMPLETE_NOTIFICATION),
+        CMD(ADD_STA),
+        CMD(REMOVE_STA),
+        CMD(LQ_CMD),
+        CMD(SCAN_OFFLOAD_CONFIG_CMD),
+        CMD(SCAN_OFFLOAD_REQUEST_CMD),
+        CMD(SCAN_OFFLOAD_ABORT_CMD),
+        CMD(SCAN_OFFLOAD_COMPLETE),
+        CMD(SCAN_OFFLOAD_UPDATE_PROFILES_CMD),
+        CMD(POWER_TABLE_CMD),
+        CMD(WEP_KEY),
+        CMD(REPLY_RX_PHY_CMD),
+        CMD(REPLY_RX_MPDU_CMD),
+        CMD(BEACON_TEMPLATE_CMD),
+        CMD(STATISTICS_NOTIFICATION),
+        CMD(TX_ANT_CONFIGURATION_CMD),
+        CMD(D3_CONFIG_CMD),
+        CMD(PROT_OFFLOAD_CONFIG_CMD),
+        CMD(OFFLOADS_QUERY_CMD),
+        CMD(REMOTE_WAKE_CONFIG_CMD),
+        CMD(WOWLAN_PATTERNS),
+        CMD(WOWLAN_CONFIGURATION),
+        CMD(WOWLAN_TSC_RSC_PARAM),
+        CMD(WOWLAN_TKIP_PARAM),
+        CMD(WOWLAN_KEK_KCK_MATERIAL),
+        CMD(WOWLAN_GET_STATUSES),
+        CMD(WOWLAN_TX_POWER_PER_DB),
+        CMD(NET_DETECT_CONFIG_CMD),
+        CMD(NET_DETECT_PROFILES_QUERY_CMD),
+        CMD(NET_DETECT_PROFILES_CMD),
+        CMD(NET_DETECT_HOTSPOTS_CMD),
+        CMD(NET_DETECT_HOTSPOTS_QUERY_CMD),
+};
+#undef CMD
+
+/* this forward declaration can avoid to export the function */
+static void iwl_mvm_async_handlers_wk(struct work_struct *wk);
+
+static struct iwl_op_mode *
+iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
+                      const struct iwl_fw *fw, struct dentry *dbgfs_dir)
+{
+        struct ieee80211_hw *hw;
+        struct iwl_op_mode *op_mode;
+        struct iwl_mvm *mvm;
+        struct iwl_trans_config trans_cfg = {};
+        static const u8 no_reclaim_cmds[] = {
+                TX_CMD,
+        };
+        int err, scan_size;
+
+        switch (cfg->device_family) {
+        case IWL_DEVICE_FAMILY_6030:
+        case IWL_DEVICE_FAMILY_6005:
+        case IWL_DEVICE_FAMILY_7000:
+                break;
+        default:
+                IWL_ERR(trans, "Trying to load mvm on an unsupported device\n");
+                return NULL;
+        }
+
+        /********************************
+         * 1. Allocating and configuring HW data
+         ********************************/
+        hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) +
+                                sizeof(struct iwl_mvm),
+                                &iwl_mvm_hw_ops);
+        if (!hw)
+                return NULL;
+
+        op_mode = hw->priv;
+        op_mode->ops = &iwl_mvm_ops;
+        op_mode->trans = trans;
+
+        mvm = IWL_OP_MODE_GET_MVM(op_mode);
+        mvm->dev = trans->dev;
+        mvm->trans = trans;
+        mvm->cfg = cfg;
+        mvm->fw = fw;
+        mvm->hw = hw;
+
+        mutex_init(&mvm->mutex);
+        spin_lock_init(&mvm->async_handlers_lock);
+        INIT_LIST_HEAD(&mvm->time_event_list);
+        INIT_LIST_HEAD(&mvm->async_handlers_list);
+        spin_lock_init(&mvm->time_event_lock);
+
+        INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk);
+        INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk);
+        INIT_WORK(&mvm->sta_drained_wk, iwl_mvm_sta_drained_wk);
+
+        SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev);
+
+        /*
+         * Populate the state variables that the transport layer needs
+         * to know about.
+         */
+        trans_cfg.op_mode = op_mode;
+        trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
+        trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
+        trans_cfg.rx_buf_size_8k = iwlwifi_mod_params.amsdu_size_8K;
+
+        /* TODO: this should really be a TLV */
+        if (cfg->device_family == IWL_DEVICE_FAMILY_7000)
+                trans_cfg.bc_table_dword = true;
+
+        if (!iwlwifi_mod_params.wd_disable)
+                trans_cfg.queue_watchdog_timeout = cfg->base_params->wd_timeout;
+        else
+                trans_cfg.queue_watchdog_timeout = IWL_WATCHDOG_DISABLED;
+
+        trans_cfg.command_names = iwl_mvm_cmd_strings;
+
+        trans_cfg.cmd_queue = IWL_MVM_CMD_QUEUE;
+        trans_cfg.cmd_fifo = IWL_MVM_CMD_FIFO;
+
+        snprintf(mvm->hw->wiphy->fw_version,
+                 sizeof(mvm->hw->wiphy->fw_version),
+                 "%s", fw->fw_version);
+
+        /* Configure transport layer */
+        iwl_trans_configure(mvm->trans, &trans_cfg);
+
+        trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD;
+        trans->rx_mpdu_cmd_hdr_size = sizeof(struct iwl_rx_mpdu_res_start);
+
+        /* set up notification wait support */
+        iwl_notification_wait_init(&mvm->notif_wait);
+
+        /* Init phy db */
+        mvm->phy_db = iwl_phy_db_init(trans);
+        if (!mvm->phy_db) {
+                IWL_ERR(mvm, "Cannot init phy_db\n");
+                goto out_free;
+        }
+
+        IWL_INFO(mvm, "Detected %s, REV=0x%X\n",
+                 mvm->cfg->name, mvm->trans->hw_rev);
+
+        err = iwl_trans_start_hw(mvm->trans);
+        if (err)
+                goto out_free;
+
+        mutex_lock(&mvm->mutex);
+        err = iwl_run_init_mvm_ucode(mvm, true);
+        mutex_unlock(&mvm->mutex);
+        if (err && !iwlmvm_mod_params.init_dbg) {
+                IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", err);
+                goto out_free;
+        }
+
+        /* Stop the hw after the ALIVE and NVM has been read */
+        if (!iwlmvm_mod_params.init_dbg)
+                iwl_trans_stop_hw(mvm->trans, false);
+
+        scan_size = sizeof(struct iwl_scan_cmd) +
+                mvm->fw->ucode_capa.max_probe_length +
+                (MAX_NUM_SCAN_CHANNELS * sizeof(struct iwl_scan_channel));
+        mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL);
+        if (!mvm->scan_cmd)
+                goto out_free;
+
+        err = iwl_mvm_mac_setup_register(mvm);
+        if (err)
+                goto out_free;
+
+        err = iwl_mvm_dbgfs_register(mvm, dbgfs_dir);
+        if (err)
+                goto out_unregister;
+
+        return op_mode;
+
+ out_unregister:
+        ieee80211_unregister_hw(mvm->hw);
+ out_free:
+        iwl_phy_db_free(mvm->phy_db);
+        kfree(mvm->scan_cmd);
+        kfree(mvm->eeprom_blob);
+        iwl_trans_stop_hw(trans, true);
+        ieee80211_free_hw(mvm->hw);
+        return NULL;
+}
+
+static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
+{
+        struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
+        int i;
+
+        iwl_mvm_leds_exit(mvm);
+
+        ieee80211_unregister_hw(mvm->hw);
+
+        kfree(mvm->scan_cmd);
+
+        iwl_trans_stop_hw(mvm->trans, true);
+
+        iwl_phy_db_free(mvm->phy_db);
+        mvm->phy_db = NULL;
+
+        kfree(mvm->eeprom_blob);
+        iwl_free_nvm_data(mvm->nvm_data);
+        for (i = 0; i < NVM_NUM_OF_SECTIONS; i++)
+                kfree(mvm->nvm_sections[i].data);
+
+        ieee80211_free_hw(mvm->hw);
+}
+
+struct iwl_async_handler_entry {
+        struct list_head list;
+        struct iwl_rx_cmd_buffer rxb;
+        int (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
+                  struct iwl_device_cmd *cmd);
+};
+
+void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm)
+{
+        struct iwl_async_handler_entry *entry, *tmp;
+
+        spin_lock_bh(&mvm->async_handlers_lock);
+        list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) {
+                iwl_free_rxb(&entry->rxb);
+                list_del(&entry->list);
+                kfree(entry);
+        }
+        spin_unlock_bh(&mvm->async_handlers_lock);
+}
+
+static void iwl_mvm_async_handlers_wk(struct work_struct *wk)
+{
+        struct iwl_mvm *mvm =
+                container_of(wk, struct iwl_mvm, async_handlers_wk);
+        struct iwl_async_handler_entry *entry, *tmp;
+        struct list_head local_list;
+
+        INIT_LIST_HEAD(&local_list);
+
+        /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */
+        mutex_lock(&mvm->mutex);
+
+        /*
+         * Sync with Rx path with a lock. Remove all the entries from this list,
+         * add them to a local one (lock free), and then handle them.
+         */
+        spin_lock_bh(&mvm->async_handlers_lock);
+        list_splice_init(&mvm->async_handlers_list, &local_list);
+        spin_unlock_bh(&mvm->async_handlers_lock);
+
+        list_for_each_entry_safe(entry, tmp, &local_list, list) {
+                if (entry->fn(mvm, &entry->rxb, NULL))
+                        IWL_WARN(mvm,
+                                 "returned value from ASYNC handlers are ignored\n");
+                iwl_free_rxb(&entry->rxb);
+                list_del(&entry->list);
+                kfree(entry);
+        }
+        mutex_unlock(&mvm->mutex);
+}
+
+static int iwl_mvm_rx_dispatch(struct iwl_op_mode *op_mode,
+                               struct iwl_rx_cmd_buffer *rxb,
+                               struct iwl_device_cmd *cmd)
+{
+        struct iwl_rx_packet *pkt = rxb_addr(rxb);
+        struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
+        u8 i;
+
+        /*
+         * Do the notification wait before RX handlers so
+         * even if the RX handler consumes the RXB we have
+         * access to it in the notification wait entry.
+         */
+        iwl_notification_wait_notify(&mvm->notif_wait, pkt);
+
+        for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) {
+                const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i];
+                if (rx_h->cmd_id == pkt->hdr.cmd) {
+                        struct iwl_async_handler_entry *entry;
+                        if (!rx_h->async)
+                                return rx_h->fn(mvm, rxb, cmd);
+
+                        entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
+                        /* we can't do much... */
+                        if (!entry)
+                                return 0;
+
+                        entry->rxb._page = rxb_steal_page(rxb);
+                        entry->rxb._offset = rxb->_offset;
+                        entry->rxb._rx_page_order = rxb->_rx_page_order;
+                        entry->fn = rx_h->fn;
+                        spin_lock(&mvm->async_handlers_lock);
+                        list_add_tail(&entry->list, &mvm->async_handlers_list);
+                        spin_unlock(&mvm->async_handlers_lock);
+                        schedule_work(&mvm->async_handlers_wk);
+                }
+        }
+
+        return 0;
+}
+
+static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int queue)
+{
+        struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
+        int mq = mvm->queue_to_mac80211[queue];
+
+        if (WARN_ON_ONCE(mq == IWL_INVALID_MAC80211_QUEUE))
+                return;
+
+        if (atomic_inc_return(&mvm->queue_stop_count[mq]) > 1) {
+                IWL_DEBUG_TX_QUEUES(mvm,
+                                    "queue %d (mac80211 %d) already stopped\n",
+                                    queue, mq);
+                return;
+        }
+
+        set_bit(mq, &mvm->transport_queue_stop);
+        ieee80211_stop_queue(mvm->hw, mq);
+}
+
+static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int queue)
+{
+        struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
+        int mq = mvm->queue_to_mac80211[queue];
+
+        if (WARN_ON_ONCE(mq == IWL_INVALID_MAC80211_QUEUE))
+                return;
+
+        if (atomic_dec_return(&mvm->queue_stop_count[mq]) > 0) {
+                IWL_DEBUG_TX_QUEUES(mvm,
+                                    "queue %d (mac80211 %d) already awake\n",
+                                    queue, mq);
+                return;
+        }
+
+        clear_bit(mq, &mvm->transport_queue_stop);
+
+        ieee80211_wake_queue(mvm->hw, mq);
+}
+
+static void iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
+{
+        struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
+
+        if (state)
+                set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
+        else
+                clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
+
+        wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state);
+}
+
+static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
+{
+        struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
+        struct ieee80211_tx_info *info;
+
+        info = IEEE80211_SKB_CB(skb);
+        iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]);
+        ieee80211_free_txskb(mvm->hw, skb);
+}
+
+static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode)
+{
+        struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
+
+        iwl_mvm_dump_nic_error_log(mvm);
+
+        iwl_abort_notification_waits(&mvm->notif_wait);
+
+        /*
+         * If we're restarting already, don't cycle restarts.
+         * If INIT fw asserted, it will likely fail again.
+         * If WoWLAN fw asserted, don't restart either, mac80211
+         * can't recover this since we're already half suspended.
+         */
+        if (test_and_set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
+                IWL_ERR(mvm, "Firmware error during reconfiguration! Abort.\n");
+        } else if (mvm->cur_ucode == IWL_UCODE_REGULAR &&
+                   iwlwifi_mod_params.restart_fw) {
+                /*
+                 * This is a bit racy, but worst case we tell mac80211 about
+                 * a stopped/aborted (sched) scan when that was already done
+                 * which is not a problem. It is necessary to abort any scan
+                 * here because mac80211 requires having the scan cleared
+                 * before restarting.
+                 * We'll reset the scan_status to NONE in restart cleanup in
+                 * the next start() call from mac80211.
+                 */
+                switch (mvm->scan_status) {
+                case IWL_MVM_SCAN_NONE:
+                        break;
+                case IWL_MVM_SCAN_OS:
+                        ieee80211_scan_completed(mvm->hw, true);
+                        break;
+                }
+
+                ieee80211_restart_hw(mvm->hw);
+        }
+}
+
+static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode)
+{
+        WARN_ON(1);
+}
+
+static const struct iwl_op_mode_ops iwl_mvm_ops = {
+        .start = iwl_op_mode_mvm_start,
+        .stop = iwl_op_mode_mvm_stop,
+        .rx = iwl_mvm_rx_dispatch,
+        .queue_full = iwl_mvm_stop_sw_queue,
+        .queue_not_full = iwl_mvm_wake_sw_queue,
+        .hw_rf_kill = iwl_mvm_set_hw_rfkill_state,
+        .free_skb = iwl_mvm_free_skb,
+        .nic_error = iwl_mvm_nic_error,
+        .cmd_queue_full = iwl_mvm_cmd_queue_full,
+        .nic_config = iwl_mvm_nic_config,
+};