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linux/drivers/net/wireless/iwlwifi/mvm/ops.c
Eliad Peller d15a747fc8 iwlwifi: mvm: don't use d3 fw if d0i3 is used 
bail out from the suspend/resume callbacks if
d0i3 is used.

declare support for ANY wowlan trigger (i.e.
normal operation).

On resume, we shouldn't execute the d0i3 exit
flow (which might disconnect stations, etc.)
until mac80211 was resumed.
Add new flags to indicate we are in suspend,
and call the pending exit work on resume.

Since the resume flow can take some time, add
a new EXIT_WORK reference type to prevent going
back to d0i3 at this stage.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-04-13 22:23:18 +03:00

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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) 2012 - 2014 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 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) 2012 - 2014 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 <linux/vmalloc.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 "fw-error-dump.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;
radio_cfg_type = (mvm->fw->phy_config & FW_PHY_CFG_RADIO_TYPE) >>
FW_PHY_CFG_RADIO_TYPE_POS;
radio_cfg_step = (mvm->fw->phy_config & FW_PHY_CFG_RADIO_STEP) >>
FW_PHY_CFG_RADIO_STEP_POS;
radio_cfg_dash = (mvm->fw->phy_config & FW_PHY_CFG_RADIO_DASH) >>
FW_PHY_CFG_RADIO_DASH_POS;
/* 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;
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.
*/
if (mvm->trans->cfg->device_family != IWL_DEVICE_FAMILY_8000)
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(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif, true),
RX_HANDLER(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif, false),
RX_HANDLER(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics, true),
RX_HANDLER(ANTENNA_COUPLING_NOTIFICATION,
iwl_mvm_rx_ant_coupling_notif, true),
RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif, false),
RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, false),
RX_HANDLER(SCAN_REQUEST_CMD, iwl_mvm_rx_scan_response, false),
RX_HANDLER(SCAN_COMPLETE_NOTIFICATION, iwl_mvm_rx_scan_complete, true),
RX_HANDLER(SCAN_OFFLOAD_COMPLETE,
iwl_mvm_rx_scan_offload_complete_notif, true),
RX_HANDLER(MATCH_FOUND_NOTIFICATION, iwl_mvm_rx_sched_scan_results,
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(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif,
false),
RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, false),
RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION,
iwl_mvm_power_uapsd_misbehaving_ap_notif, false),
};
#undef RX_HANDLER
#define CMD(x) [x] = #x
static const char *const 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(NON_QOS_TX_COUNTER_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_KEY),
CMD(ADD_STA),
CMD(REMOVE_STA),
CMD(LQ_CMD),
CMD(SCAN_OFFLOAD_CONFIG_CMD),
CMD(MATCH_FOUND_NOTIFICATION),
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_NOTIFICATION),
CMD(BEACON_TEMPLATE_CMD),
CMD(STATISTICS_NOTIFICATION),
CMD(EOSP_NOTIFICATION),
CMD(REDUCE_TX_POWER_CMD),
CMD(TX_ANT_CONFIGURATION_CMD),
CMD(D3_CONFIG_CMD),
CMD(D0I3_END_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),
CMD(CARD_STATE_NOTIFICATION),
CMD(MISSED_BEACONS_NOTIFICATION),
CMD(BT_COEX_PRIO_TABLE),
CMD(BT_COEX_PROT_ENV),
CMD(BT_PROFILE_NOTIFICATION),
CMD(BT_CONFIG),
CMD(MCAST_FILTER_CMD),
CMD(BCAST_FILTER_CMD),
CMD(REPLY_SF_CFG_CMD),
CMD(REPLY_BEACON_FILTERING_CMD),
CMD(REPLY_THERMAL_MNG_BACKOFF),
CMD(MAC_PM_POWER_TABLE),
CMD(BT_COEX_CI),
CMD(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION),
CMD(ANTENNA_COUPLING_NOTIFICATION),
};
#undef CMD
/* this forward declaration can avoid to export the function */
static void iwl_mvm_async_handlers_wk(struct work_struct *wk);
static void iwl_mvm_d0i3_exit_work(struct work_struct *wk);
static u32 calc_min_backoff(struct iwl_trans *trans, const struct iwl_cfg *cfg)
{
const struct iwl_pwr_tx_backoff *pwr_tx_backoff = cfg->pwr_tx_backoffs;
if (!pwr_tx_backoff)
return 0;
while (pwr_tx_backoff->pwr) {
if (trans->dflt_pwr_limit >= pwr_tx_backoff->pwr)
return pwr_tx_backoff->backoff;
pwr_tx_backoff++;
}
return 0;
}
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;
u32 min_backoff;
/*
* We use IWL_MVM_STATION_COUNT to check the validity of the station
* index all over the driver - check that its value corresponds to the
* array size.
*/
BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != IWL_MVM_STATION_COUNT);
/********************************
* 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;
mvm = IWL_OP_MODE_GET_MVM(op_mode);
mvm->dev = trans->dev;
mvm->trans = trans;
mvm->cfg = cfg;
mvm->fw = fw;
mvm->hw = hw;
mvm->restart_fw = iwlwifi_mod_params.restart_fw ? -1 : 0;
mvm->aux_queue = 15;
mvm->first_agg_queue = 16;
mvm->last_agg_queue = mvm->cfg->base_params->num_of_queues - 1;
if (mvm->cfg->base_params->num_of_queues == 16) {
mvm->aux_queue = 11;
mvm->first_agg_queue = 12;
}
mvm->sf_state = SF_UNINIT;
mutex_init(&mvm->mutex);
mutex_init(&mvm->d0i3_suspend_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);
INIT_WORK(&mvm->d0i3_exit_work, iwl_mvm_d0i3_exit_work);
spin_lock_init(&mvm->d0i3_tx_lock);
skb_queue_head_init(&mvm->d0i3_tx);
init_waitqueue_head(&mvm->d0i3_exit_waitq);
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;
if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_DW_BC_TABLE)
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);
min_backoff = calc_min_backoff(trans, cfg);
iwl_mvm_tt_initialize(mvm, min_backoff);
/*
* If the NVM exists in an external file,
* there is no need to unnecessarily power up the NIC at driver load
*/
if (iwlwifi_mod_params.nvm_file) {
err = iwl_nvm_init(mvm);
if (err)
goto out_free;
} else {
err = iwl_trans_start_hw(mvm->trans);
if (err)
goto out_free;
mutex_lock(&mvm->mutex);
err = iwl_run_init_mvm_ucode(mvm, true);
iwl_trans_stop_device(trans);
mutex_unlock(&mvm->mutex);
/* returns 0 if successful, 1 if success but in rfkill */
if (err < 0 && !iwlmvm_mod_params.init_dbg) {
IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", err);
goto out_free;
}
}
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;
memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx));
/* rpm starts with a taken ref. only set the appropriate bit here. */
set_bit(IWL_MVM_REF_UCODE_DOWN, mvm->ref_bitmap);
return op_mode;
out_unregister:
ieee80211_unregister_hw(mvm->hw);
iwl_mvm_leds_exit(mvm);
out_free:
iwl_phy_db_free(mvm->phy_db);
kfree(mvm->scan_cmd);
if (!iwlwifi_mod_params.nvm_file)
iwl_trans_op_mode_leave(trans);
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);
iwl_mvm_tt_exit(mvm);
ieee80211_unregister_hw(mvm->hw);
kfree(mvm->scan_cmd);
vfree(mvm->fw_error_dump);
kfree(mvm->fw_error_sram);
kfree(mvm->fw_error_rxf);
kfree(mvm->mcast_filter_cmd);
mvm->mcast_filter_cmd = NULL;
#if defined(CONFIG_PM_SLEEP) && defined(CONFIG_IWLWIFI_DEBUGFS)
kfree(mvm->d3_resume_sram);
#endif
iwl_trans_op_mode_leave(mvm->trans);
iwl_phy_db_free(mvm->phy_db);
mvm->phy_db = NULL;
iwl_free_nvm_data(mvm->nvm_data);
for (i = 0; i < NVM_MAX_NUM_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];
struct iwl_async_handler_entry *entry;
if (rx_h->cmd_id != pkt->hdr.cmd)
continue;
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);
break;
}
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);
}
void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state)
{
if (state)
set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
else
clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm));
}
static bool 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, iwl_mvm_is_radio_killed(mvm));
return state && mvm->cur_ucode != IWL_UCODE_INIT;
}
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);
}
struct iwl_mvm_reprobe {
struct device *dev;
struct work_struct work;
};
static void iwl_mvm_reprobe_wk(struct work_struct *wk)
{
struct iwl_mvm_reprobe *reprobe;
reprobe = container_of(wk, struct iwl_mvm_reprobe, work);
if (device_reprobe(reprobe->dev))
dev_err(reprobe->dev, "reprobe failed!\n");
kfree(reprobe);
module_put(THIS_MODULE);
}
static void iwl_mvm_nic_restart(struct iwl_mvm *mvm)
{
iwl_abort_notification_waits(&mvm->notif_wait);
/*
* This is a bit racy, but worst case we tell mac80211 about
* a stopped/aborted scan when that was already done which
* is not a problem. It is necessary to abort any os 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. If restart isn't called
* (no fw restart) scan status will stay busy.
*/
switch (mvm->scan_status) {
case IWL_MVM_SCAN_NONE:
break;
case IWL_MVM_SCAN_OS:
ieee80211_scan_completed(mvm->hw, true);
break;
case IWL_MVM_SCAN_SCHED:
/* Sched scan will be restarted by mac80211 in restart_hw. */
if (!mvm->restart_fw)
ieee80211_sched_scan_stopped(mvm->hw);
break;
}
/*
* 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)) {
struct iwl_mvm_reprobe *reprobe;
IWL_ERR(mvm,
"Firmware error during reconfiguration - reprobe!\n");
/*
* get a module reference to avoid doing this while unloading
* anyway and to avoid scheduling a work with code that's
* being removed.
*/
if (!try_module_get(THIS_MODULE)) {
IWL_ERR(mvm, "Module is being unloaded - abort\n");
return;
}
reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC);
if (!reprobe) {
module_put(THIS_MODULE);
return;
}
reprobe->dev = mvm->trans->dev;
INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk);
schedule_work(&reprobe->work);
} else if (mvm->cur_ucode == IWL_UCODE_REGULAR && mvm->restart_fw) {
/* don't let the transport/FW power down */
iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
if (mvm->restart_fw > 0)
mvm->restart_fw--;
ieee80211_restart_hw(mvm->hw);
}
}
#ifdef CONFIG_IWLWIFI_DEBUGFS
void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
{
struct iwl_fw_error_dump_file *dump_file;
struct iwl_fw_error_dump_data *dump_data;
u32 file_len;
lockdep_assert_held(&mvm->mutex);
if (mvm->fw_error_dump)
return;
file_len = mvm->fw_error_sram_len +
mvm->fw_error_rxf_len +
sizeof(*dump_file) +
sizeof(*dump_data) * 2;
dump_file = vmalloc(file_len);
if (!dump_file)
return;
mvm->fw_error_dump = dump_file;
dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER);
dump_file->file_len = cpu_to_le32(file_len);
dump_data = (void *)dump_file->data;
dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF);
dump_data->len = cpu_to_le32(mvm->fw_error_rxf_len);
memcpy(dump_data->data, mvm->fw_error_rxf, mvm->fw_error_rxf_len);
dump_data = (void *)((u8 *)dump_data->data + mvm->fw_error_rxf_len);
dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_SRAM);
dump_data->len = cpu_to_le32(mvm->fw_error_sram_len);
/*
* No need for lock since at the stage the FW isn't loaded. So it
* can't assert - we are the only one who can possibly be accessing
* mvm->fw_error_sram right now.
*/
memcpy(dump_data->data, mvm->fw_error_sram, mvm->fw_error_sram_len);
kfree(mvm->fw_error_rxf);
mvm->fw_error_rxf = NULL;
mvm->fw_error_rxf_len = 0;
kfree(mvm->fw_error_sram);
mvm->fw_error_sram = NULL;
mvm->fw_error_sram_len = 0;
}
#endif
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);
#ifdef CONFIG_IWLWIFI_DEBUGFS
iwl_mvm_fw_error_sram_dump(mvm);
iwl_mvm_fw_error_rxf_dump(mvm);
#endif
iwl_mvm_nic_restart(mvm);
}
static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode)
{
struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
WARN_ON(1);
iwl_mvm_nic_restart(mvm);
}
struct iwl_d0i3_iter_data {
struct iwl_mvm *mvm;
u8 ap_sta_id;
u8 vif_count;
u8 offloading_tid;
bool disable_offloading;
};
static bool iwl_mvm_disallow_offloading(struct iwl_mvm *mvm,
struct ieee80211_vif *vif,
struct iwl_d0i3_iter_data *iter_data)
{
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
struct ieee80211_sta *ap_sta;
struct iwl_mvm_sta *mvmsta;
u32 available_tids = 0;
u8 tid;
if (WARN_ON(vif->type != NL80211_IFTYPE_STATION ||
mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT))
return false;
ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id]);
if (IS_ERR_OR_NULL(ap_sta))
return false;
mvmsta = iwl_mvm_sta_from_mac80211(ap_sta);
spin_lock_bh(&mvmsta->lock);
for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
/*
* in case of pending tx packets, don't use this tid
* for offloading in order to prevent reuse of the same
* qos seq counters.
*/
if (iwl_mvm_tid_queued(tid_data))
continue;
if (tid_data->state != IWL_AGG_OFF)
continue;
available_tids |= BIT(tid);
}
spin_unlock_bh(&mvmsta->lock);
/*
* disallow protocol offloading if we have no available tid
* (with no pending frames and no active aggregation,
* as we don't handle "holes" properly - the scheduler needs the
* frame's seq number and TFD index to match)
*/
if (!available_tids)
return true;
/* for simplicity, just use the first available tid */
iter_data->offloading_tid = ffs(available_tids) - 1;
return false;
}
static void iwl_mvm_enter_d0i3_iterator(void *_data, u8 *mac,
struct ieee80211_vif *vif)
{
struct iwl_d0i3_iter_data *data = _data;
struct iwl_mvm *mvm = data->mvm;
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE;
IWL_DEBUG_RPM(mvm, "entering D0i3 - vif %pM\n", vif->addr);
if (vif->type != NL80211_IFTYPE_STATION ||
!vif->bss_conf.assoc)
return;
/*
* in case of pending tx packets or active aggregations,
* avoid offloading features in order to prevent reuse of
* the same qos seq counters.
*/
if (iwl_mvm_disallow_offloading(mvm, vif, data))
data->disable_offloading = true;
iwl_mvm_update_d0i3_power_mode(mvm, vif, true, flags);
iwl_mvm_send_proto_offload(mvm, vif, data->disable_offloading, flags);
/*
* on init/association, mvm already configures POWER_TABLE_CMD
* and REPLY_MCAST_FILTER_CMD, so currently don't
* reconfigure them (we might want to use different
* params later on, though).
*/
data->ap_sta_id = mvmvif->ap_sta_id;
data->vif_count++;
}
static void iwl_mvm_set_wowlan_data(struct iwl_mvm *mvm,
struct iwl_wowlan_config_cmd_v3 *cmd,
struct iwl_d0i3_iter_data *iter_data)
{
struct ieee80211_sta *ap_sta;
struct iwl_mvm_sta *mvm_ap_sta;
if (iter_data->ap_sta_id == IWL_MVM_STATION_COUNT)
return;
rcu_read_lock();
ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[iter_data->ap_sta_id]);
if (IS_ERR_OR_NULL(ap_sta))
goto out;
mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta);
cmd->common.is_11n_connection = ap_sta->ht_cap.ht_supported;
cmd->offloading_tid = iter_data->offloading_tid;
/*
* The d0i3 uCode takes care of the nonqos counters,
* so configure only the qos seq ones.
*/
iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, &cmd->common);
out:
rcu_read_unlock();
}
static int iwl_mvm_enter_d0i3(struct iwl_op_mode *op_mode)
{
struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE;
int ret;
struct iwl_d0i3_iter_data d0i3_iter_data = {
.mvm = mvm,
};
struct iwl_wowlan_config_cmd_v3 wowlan_config_cmd = {
.common = {
.wakeup_filter =
cpu_to_le32(IWL_WOWLAN_WAKEUP_RX_FRAME |
IWL_WOWLAN_WAKEUP_BEACON_MISS |
IWL_WOWLAN_WAKEUP_LINK_CHANGE |
IWL_WOWLAN_WAKEUP_BCN_FILTERING),
},
};
struct iwl_d3_manager_config d3_cfg_cmd = {
.min_sleep_time = cpu_to_le32(1000),
};
IWL_DEBUG_RPM(mvm, "MVM entering D0i3\n");
/* make sure we have no running tx while configuring the qos */
set_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
synchronize_net();
ieee80211_iterate_active_interfaces_atomic(mvm->hw,
IEEE80211_IFACE_ITER_NORMAL,
iwl_mvm_enter_d0i3_iterator,
&d0i3_iter_data);
if (d0i3_iter_data.vif_count == 1) {
mvm->d0i3_ap_sta_id = d0i3_iter_data.ap_sta_id;
mvm->d0i3_offloading = !d0i3_iter_data.disable_offloading;
} else {
WARN_ON_ONCE(d0i3_iter_data.vif_count > 1);
mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
mvm->d0i3_offloading = false;
}
iwl_mvm_set_wowlan_data(mvm, &wowlan_config_cmd, &d0i3_iter_data);
ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, flags,
sizeof(wowlan_config_cmd),
&wowlan_config_cmd);
if (ret)
return ret;
return iwl_mvm_send_cmd_pdu(mvm, D3_CONFIG_CMD,
flags | CMD_MAKE_TRANS_IDLE,
sizeof(d3_cfg_cmd), &d3_cfg_cmd);
}
static void iwl_mvm_exit_d0i3_iterator(void *_data, u8 *mac,
struct ieee80211_vif *vif)
{
struct iwl_mvm *mvm = _data;
u32 flags = CMD_ASYNC | CMD_HIGH_PRIO;
IWL_DEBUG_RPM(mvm, "exiting D0i3 - vif %pM\n", vif->addr);
if (vif->type != NL80211_IFTYPE_STATION ||
!vif->bss_conf.assoc)
return;
iwl_mvm_update_d0i3_power_mode(mvm, vif, false, flags);
}
static void iwl_mvm_d0i3_disconnect_iter(void *data, u8 *mac,
struct ieee80211_vif *vif)
{
struct iwl_mvm *mvm = data;
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
if (vif->type == NL80211_IFTYPE_STATION && vif->bss_conf.assoc &&
mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
ieee80211_connection_loss(vif);
}
void iwl_mvm_d0i3_enable_tx(struct iwl_mvm *mvm, __le16 *qos_seq)
{
struct ieee80211_sta *sta = NULL;
struct iwl_mvm_sta *mvm_ap_sta;
int i;
bool wake_queues = false;
lockdep_assert_held(&mvm->mutex);
spin_lock_bh(&mvm->d0i3_tx_lock);
if (mvm->d0i3_ap_sta_id == IWL_MVM_STATION_COUNT)
goto out;
IWL_DEBUG_RPM(mvm, "re-enqueue packets\n");
/* get the sta in order to update seq numbers and re-enqueue skbs */
sta = rcu_dereference_protected(
mvm->fw_id_to_mac_id[mvm->d0i3_ap_sta_id],
lockdep_is_held(&mvm->mutex));
if (IS_ERR_OR_NULL(sta)) {
sta = NULL;
goto out;
}
if (mvm->d0i3_offloading && qos_seq) {
/* update qos seq numbers if offloading was enabled */
mvm_ap_sta = (struct iwl_mvm_sta *)sta->drv_priv;
for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
u16 seq = le16_to_cpu(qos_seq[i]);
/* firmware stores last-used one, we store next one */
seq += 0x10;
mvm_ap_sta->tid_data[i].seq_number = seq;
}
}
out:
/* re-enqueue (or drop) all packets */
while (!skb_queue_empty(&mvm->d0i3_tx)) {
struct sk_buff *skb = __skb_dequeue(&mvm->d0i3_tx);
if (!sta || iwl_mvm_tx_skb(mvm, skb, sta))
ieee80211_free_txskb(mvm->hw, skb);
/* if the skb_queue is not empty, we need to wake queues */
wake_queues = true;
}
clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
wake_up(&mvm->d0i3_exit_waitq);
mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
if (wake_queues)
ieee80211_wake_queues(mvm->hw);
spin_unlock_bh(&mvm->d0i3_tx_lock);
}
static void iwl_mvm_d0i3_exit_work(struct work_struct *wk)
{
struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, d0i3_exit_work);
struct iwl_host_cmd get_status_cmd = {
.id = WOWLAN_GET_STATUSES,
.flags = CMD_SYNC | CMD_HIGH_PRIO | CMD_WANT_SKB,
};
struct iwl_wowlan_status *status;
int ret;
u32 disconnection_reasons, wakeup_reasons;
__le16 *qos_seq = NULL;
mutex_lock(&mvm->mutex);
ret = iwl_mvm_send_cmd(mvm, &get_status_cmd);
if (ret)
goto out;
if (!get_status_cmd.resp_pkt)
goto out;
status = (void *)get_status_cmd.resp_pkt->data;
wakeup_reasons = le32_to_cpu(status->wakeup_reasons);
qos_seq = status->qos_seq_ctr;
IWL_DEBUG_RPM(mvm, "wakeup reasons: 0x%x\n", wakeup_reasons);
disconnection_reasons =
IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH;
if (wakeup_reasons & disconnection_reasons)
ieee80211_iterate_active_interfaces(
mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
iwl_mvm_d0i3_disconnect_iter, mvm);
iwl_free_resp(&get_status_cmd);
out:
iwl_mvm_d0i3_enable_tx(mvm, qos_seq);
iwl_mvm_unref(mvm, IWL_MVM_REF_EXIT_WORK);
mutex_unlock(&mvm->mutex);
}
int _iwl_mvm_exit_d0i3(struct iwl_mvm *mvm)
{
u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE |
CMD_WAKE_UP_TRANS;
int ret;
IWL_DEBUG_RPM(mvm, "MVM exiting D0i3\n");
mutex_lock(&mvm->d0i3_suspend_mutex);
if (test_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags)) {
IWL_DEBUG_RPM(mvm, "Deferring d0i3 exit until resume\n");
__set_bit(D0I3_PENDING_WAKEUP, &mvm->d0i3_suspend_flags);
mutex_unlock(&mvm->d0i3_suspend_mutex);
return 0;
}
mutex_unlock(&mvm->d0i3_suspend_mutex);
ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, flags, 0, NULL);
if (ret)
goto out;
ieee80211_iterate_active_interfaces_atomic(mvm->hw,
IEEE80211_IFACE_ITER_NORMAL,
iwl_mvm_exit_d0i3_iterator,
mvm);
out:
schedule_work(&mvm->d0i3_exit_work);
return ret;
}
static int iwl_mvm_exit_d0i3(struct iwl_op_mode *op_mode)
{
struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
iwl_mvm_ref(mvm, IWL_MVM_REF_EXIT_WORK);
return _iwl_mvm_exit_d0i3(mvm);
}
static void iwl_mvm_napi_add(struct iwl_op_mode *op_mode,
struct napi_struct *napi,
struct net_device *napi_dev,
int (*poll)(struct napi_struct *, int),
int weight)
{
struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
ieee80211_napi_add(mvm->hw, napi, napi_dev, poll, weight);
}
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,
.enter_d0i3 = iwl_mvm_enter_d0i3,
.exit_d0i3 = iwl_mvm_exit_d0i3,
.napi_add = iwl_mvm_napi_add,
};
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