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linux-zen-desktop/drivers/net/wireless/intel/iwlwifi/mvm/ops.c

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Initial commit
2023-08-30 17:31:07 +02:00
// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
/*
* Copyright (C) 2012-2014, 2018-2020 Intel Corporation
* Copyright (C) 2013-2015 Intel Mobile Communications GmbH
* Copyright (C) 2016-2017 Intel Deutschland GmbH
*/
#include <linux/module.h>
#include <linux/rtnetlink.h>
#include <linux/vmalloc.h>
#include <net/mac80211.h>
#include "fw/notif-wait.h"
#include "iwl-trans.h"
#include "iwl-op-mode.h"
#include "fw/img.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/api/rfi.h"
#include "time-event.h"
#include "fw-api.h"
#include "fw/acpi.h"
#include "fw/uefi.h"
#define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux"
MODULE_DESCRIPTION(DRV_DESCRIPTION);
MODULE_LICENSE("GPL");
MODULE_IMPORT_NS(IWLWIFI);
static const struct iwl_op_mode_ops iwl_mvm_ops;
static const struct iwl_op_mode_ops iwl_mvm_ops_mq;
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, 0444);
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, 0444);
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);
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;
u32 phy_config = iwl_mvm_get_phy_config(mvm);
radio_cfg_type = (phy_config & FW_PHY_CFG_RADIO_TYPE) >>
FW_PHY_CFG_RADIO_TYPE_POS;
radio_cfg_step = (phy_config & FW_PHY_CFG_RADIO_STEP) >>
FW_PHY_CFG_RADIO_STEP_POS;
radio_cfg_dash = (phy_config & FW_PHY_CFG_RADIO_DASH) >>
FW_PHY_CFG_RADIO_DASH_POS;
IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type,
radio_cfg_step, radio_cfg_dash);
if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210)
return;
/* SKU control */
reg_val = CSR_HW_REV_STEP_DASH(mvm->trans->hw_rev);
/* 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);
/*
* TODO: Bits 7-8 of CSR in 8000 HW family and higher set the ADC
* sampling, and shouldn't be set to any non-zero value.
* The same is supposed to be true of the other HW, but unsetting
* them (such as the 7260) causes automatic tests to fail on seemingly
* unrelated errors. Need to further investigate this, but for now
* we'll separate cases.
*/
if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_8000)
reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI;
if (iwl_fw_dbg_is_d3_debug_enabled(&mvm->fwrt))
reg_val |= CSR_HW_IF_CONFIG_REG_D3_DEBUG;
iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG,
CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP_DASH |
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 |
CSR_HW_IF_CONFIG_REG_D3_DEBUG,
reg_val);
/*
* 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->apmg_not_supported)
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);
}
static void iwl_mvm_rx_monitor_notif(struct iwl_mvm *mvm,
struct iwl_rx_cmd_buffer *rxb)
{
struct iwl_rx_packet *pkt = rxb_addr(rxb);
struct iwl_datapath_monitor_notif *notif = (void *)pkt->data;
struct ieee80211_supported_band *sband;
const struct ieee80211_sta_he_cap *he_cap;
struct ieee80211_vif *vif;
if (notif->type != cpu_to_le32(IWL_DP_MON_NOTIF_TYPE_EXT_CCA))
return;
vif = iwl_mvm_get_vif_by_macid(mvm, notif->mac_id);
if (!vif || vif->type != NL80211_IFTYPE_STATION)
return;
if (!vif->bss_conf.chandef.chan ||
vif->bss_conf.chandef.chan->band != NL80211_BAND_2GHZ ||
vif->bss_conf.chandef.width < NL80211_CHAN_WIDTH_40)
return;
if (!vif->cfg.assoc)
return;
/* this shouldn't happen *again*, ignore it */
if (mvm->cca_40mhz_workaround)
return;
/*
* We'll decrement this on disconnect - so set to 2 since we'll
* still have to disconnect from the current AP first.
*/
mvm->cca_40mhz_workaround = 2;
/*
* This capability manipulation isn't really ideal, but it's the
* easiest choice - otherwise we'd have to do some major changes
* in mac80211 to support this, which isn't worth it. This does
* mean that userspace may have outdated information, but that's
* actually not an issue at all.
*/
sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ];
WARN_ON(!sband->ht_cap.ht_supported);
WARN_ON(!(sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40));
sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
he_cap = ieee80211_get_he_iftype_cap(sband,
ieee80211_vif_type_p2p(vif));
if (he_cap) {
/* we know that ours is writable */
struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap;
WARN_ON(!he->has_he);
WARN_ON(!(he->he_cap_elem.phy_cap_info[0] &
IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G));
he->he_cap_elem.phy_cap_info[0] &=
~IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G;
}
ieee80211_disconnect(vif, true);
}
void iwl_mvm_apply_fw_smps_request(struct ieee80211_vif *vif)
{
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
struct iwl_mvm *mvm = mvmvif->mvm;
enum ieee80211_smps_mode mode = IEEE80211_SMPS_AUTOMATIC;
if (mvm->fw_static_smps_request &&
vif->bss_conf.chandef.width == NL80211_CHAN_WIDTH_160 &&
vif->bss_conf.he_support)
mode = IEEE80211_SMPS_STATIC;
iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_FW, mode);
}
static void iwl_mvm_intf_dual_chain_req(void *data, u8 *mac,
struct ieee80211_vif *vif)
{
iwl_mvm_apply_fw_smps_request(vif);
}
static void iwl_mvm_rx_thermal_dual_chain_req(struct iwl_mvm *mvm,
struct iwl_rx_cmd_buffer *rxb)
{
struct iwl_rx_packet *pkt = rxb_addr(rxb);
struct iwl_thermal_dual_chain_request *req = (void *)pkt->data;
/*
* We could pass it to the iterator data, but also need to remember
* it for new interfaces that are added while in this state.
*/
mvm->fw_static_smps_request =
req->event == cpu_to_le32(THERMAL_DUAL_CHAIN_REQ_DISABLE);
ieee80211_iterate_interfaces(mvm->hw,
IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER,
iwl_mvm_intf_dual_chain_req, NULL);
}
/**
* enum iwl_rx_handler_context context for Rx handler
* @RX_HANDLER_SYNC : this means that it will be called in the Rx path
* which can't acquire mvm->mutex.
* @RX_HANDLER_ASYNC_LOCKED : 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.
* @RX_HANDLER_ASYNC_UNLOCKED : in case the handler needs to lock the
* mutex itself, it will be called from a worker without mvm->mutex held.
*/
enum iwl_rx_handler_context {
RX_HANDLER_SYNC,
RX_HANDLER_ASYNC_LOCKED,
RX_HANDLER_ASYNC_UNLOCKED,
};
/**
* struct iwl_rx_handlers handler for FW notification
* @cmd_id: command id
* @min_size: minimum size to expect for the notification
* @context: see &iwl_rx_handler_context
* @fn: the function is called when notification is received
*/
struct iwl_rx_handlers {
u16 cmd_id, min_size;
enum iwl_rx_handler_context context;
void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
};
#define RX_HANDLER_NO_SIZE(_cmd_id, _fn, _context) \
{ .cmd_id = _cmd_id, .fn = _fn, .context = _context, }
#define RX_HANDLER_GRP_NO_SIZE(_grp, _cmd, _fn, _context) \
{ .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, .context = _context, }
#define RX_HANDLER(_cmd_id, _fn, _context, _struct) \
{ .cmd_id = _cmd_id, .fn = _fn, \
.context = _context, .min_size = sizeof(_struct), }
#define RX_HANDLER_GRP(_grp, _cmd, _fn, _context, _struct) \
{ .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, \
.context = _context, .min_size = sizeof(_struct), }
/*
* 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 one from three contexts, see &iwl_rx_handler_context
*/
static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = {
RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, RX_HANDLER_SYNC,
struct iwl_mvm_tx_resp),
RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, RX_HANDLER_SYNC,
struct iwl_mvm_ba_notif),
RX_HANDLER_GRP(DATA_PATH_GROUP, TLC_MNG_UPDATE_NOTIF,
iwl_mvm_tlc_update_notif, RX_HANDLER_SYNC,
struct iwl_tlc_update_notif),
RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif,
RX_HANDLER_ASYNC_LOCKED, struct iwl_bt_coex_profile_notif),
RX_HANDLER_NO_SIZE(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif,
RX_HANDLER_ASYNC_LOCKED),
RX_HANDLER_NO_SIZE(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics,
RX_HANDLER_ASYNC_LOCKED),
RX_HANDLER(BA_WINDOW_STATUS_NOTIFICATION_ID,
iwl_mvm_window_status_notif, RX_HANDLER_SYNC,
struct iwl_ba_window_status_notif),
RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif,
RX_HANDLER_SYNC, struct iwl_time_event_notif),
RX_HANDLER_GRP(MAC_CONF_GROUP, SESSION_PROTECTION_NOTIF,
iwl_mvm_rx_session_protect_notif, RX_HANDLER_SYNC,
struct iwl_mvm_session_prot_notif),
RX_HANDLER(MCC_CHUB_UPDATE_CMD, iwl_mvm_rx_chub_update_mcc,
RX_HANDLER_ASYNC_LOCKED, struct iwl_mcc_chub_notif),
RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, RX_HANDLER_SYNC,
struct iwl_mvm_eosp_notification),
RX_HANDLER(SCAN_ITERATION_COMPLETE,
iwl_mvm_rx_lmac_scan_iter_complete_notif, RX_HANDLER_SYNC,
struct iwl_lmac_scan_complete_notif),
RX_HANDLER(SCAN_OFFLOAD_COMPLETE,
iwl_mvm_rx_lmac_scan_complete_notif,
RX_HANDLER_ASYNC_LOCKED, struct iwl_periodic_scan_complete),
RX_HANDLER_NO_SIZE(MATCH_FOUND_NOTIFICATION,
iwl_mvm_rx_scan_match_found,
RX_HANDLER_SYNC),
RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif,
RX_HANDLER_ASYNC_LOCKED, struct iwl_umac_scan_complete),
RX_HANDLER(SCAN_ITERATION_COMPLETE_UMAC,
iwl_mvm_rx_umac_scan_iter_complete_notif, RX_HANDLER_SYNC,
struct iwl_umac_scan_iter_complete_notif),
RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif,
RX_HANDLER_SYNC, struct iwl_missed_beacons_notif),
RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, RX_HANDLER_SYNC,
struct iwl_error_resp),
RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION,
iwl_mvm_power_uapsd_misbehaving_ap_notif, RX_HANDLER_SYNC,
struct iwl_uapsd_misbehaving_ap_notif),
RX_HANDLER_NO_SIZE(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif,
RX_HANDLER_ASYNC_LOCKED),
RX_HANDLER_GRP_NO_SIZE(PHY_OPS_GROUP, DTS_MEASUREMENT_NOTIF_WIDE,
iwl_mvm_temp_notif, RX_HANDLER_ASYNC_UNLOCKED),
RX_HANDLER_GRP(PHY_OPS_GROUP, CT_KILL_NOTIFICATION,
iwl_mvm_ct_kill_notif, RX_HANDLER_SYNC,
struct ct_kill_notif),
RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif,
RX_HANDLER_ASYNC_LOCKED,
struct iwl_tdls_channel_switch_notif),
RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif,
RX_HANDLER_SYNC, struct iwl_mfuart_load_notif_v1),
RX_HANDLER_GRP(LOCATION_GROUP, TOF_RESPONDER_STATS,
iwl_mvm_ftm_responder_stats, RX_HANDLER_ASYNC_LOCKED,
struct iwl_ftm_responder_stats),
RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_RANGE_RESPONSE_NOTIF,
iwl_mvm_ftm_range_resp, RX_HANDLER_ASYNC_LOCKED),
RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_LC_NOTIF,
iwl_mvm_ftm_lc_notif, RX_HANDLER_ASYNC_LOCKED),
RX_HANDLER_GRP(DEBUG_GROUP, MFU_ASSERT_DUMP_NTF,
iwl_mvm_mfu_assert_dump_notif, RX_HANDLER_SYNC,
struct iwl_mfu_assert_dump_notif),
RX_HANDLER_GRP(PROT_OFFLOAD_GROUP, STORED_BEACON_NTF,
iwl_mvm_rx_stored_beacon_notif, RX_HANDLER_SYNC,
struct iwl_stored_beacon_notif_v2),
RX_HANDLER_GRP(DATA_PATH_GROUP, MU_GROUP_MGMT_NOTIF,
iwl_mvm_mu_mimo_grp_notif, RX_HANDLER_SYNC,
struct iwl_mu_group_mgmt_notif),
RX_HANDLER_GRP(DATA_PATH_GROUP, STA_PM_NOTIF,
iwl_mvm_sta_pm_notif, RX_HANDLER_SYNC,
struct iwl_mvm_pm_state_notification),
RX_HANDLER_GRP(MAC_CONF_GROUP, PROBE_RESPONSE_DATA_NOTIF,
iwl_mvm_probe_resp_data_notif,
RX_HANDLER_ASYNC_LOCKED,
struct iwl_probe_resp_data_notif),
RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_START_NOTIF,
iwl_mvm_channel_switch_start_notif,
RX_HANDLER_SYNC, struct iwl_channel_switch_start_notif),
RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_ERROR_NOTIF,
iwl_mvm_channel_switch_error_notif,
RX_HANDLER_ASYNC_UNLOCKED,
struct iwl_channel_switch_error_notif),
RX_HANDLER_GRP(DATA_PATH_GROUP, MONITOR_NOTIF,
iwl_mvm_rx_monitor_notif, RX_HANDLER_ASYNC_LOCKED,
struct iwl_datapath_monitor_notif),
RX_HANDLER_GRP(DATA_PATH_GROUP, THERMAL_DUAL_CHAIN_REQUEST,
iwl_mvm_rx_thermal_dual_chain_req,
RX_HANDLER_ASYNC_LOCKED,
struct iwl_thermal_dual_chain_request),
RX_HANDLER_GRP(SYSTEM_GROUP, RFI_DEACTIVATE_NOTIF,
iwl_rfi_deactivate_notif_handler, RX_HANDLER_ASYNC_UNLOCKED,
struct iwl_rfi_deactivate_notif),
};
#undef RX_HANDLER
#undef RX_HANDLER_GRP
/* Please keep this array *SORTED* by hex value.
* Access is done through binary search
*/
static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = {
HCMD_NAME(UCODE_ALIVE_NTFY),
HCMD_NAME(REPLY_ERROR),
HCMD_NAME(ECHO_CMD),
HCMD_NAME(INIT_COMPLETE_NOTIF),
HCMD_NAME(PHY_CONTEXT_CMD),
HCMD_NAME(DBG_CFG),
HCMD_NAME(SCAN_CFG_CMD),
HCMD_NAME(SCAN_REQ_UMAC),
HCMD_NAME(SCAN_ABORT_UMAC),
HCMD_NAME(SCAN_COMPLETE_UMAC),
HCMD_NAME(BA_WINDOW_STATUS_NOTIFICATION_ID),
HCMD_NAME(ADD_STA_KEY),
HCMD_NAME(ADD_STA),
HCMD_NAME(REMOVE_STA),
HCMD_NAME(FW_GET_ITEM_CMD),
HCMD_NAME(TX_CMD),
HCMD_NAME(SCD_QUEUE_CFG),
HCMD_NAME(TXPATH_FLUSH),
HCMD_NAME(MGMT_MCAST_KEY),
HCMD_NAME(WEP_KEY),
HCMD_NAME(SHARED_MEM_CFG),
HCMD_NAME(TDLS_CHANNEL_SWITCH_CMD),
HCMD_NAME(MAC_CONTEXT_CMD),
HCMD_NAME(TIME_EVENT_CMD),
HCMD_NAME(TIME_EVENT_NOTIFICATION),
HCMD_NAME(BINDING_CONTEXT_CMD),
HCMD_NAME(TIME_QUOTA_CMD),
HCMD_NAME(NON_QOS_TX_COUNTER_CMD),
HCMD_NAME(LEDS_CMD),
HCMD_NAME(LQ_CMD),
HCMD_NAME(FW_PAGING_BLOCK_CMD),
HCMD_NAME(SCAN_OFFLOAD_REQUEST_CMD),
HCMD_NAME(SCAN_OFFLOAD_ABORT_CMD),
HCMD_NAME(HOT_SPOT_CMD),
HCMD_NAME(SCAN_OFFLOAD_PROFILES_QUERY_CMD),
HCMD_NAME(BT_COEX_UPDATE_REDUCED_TXP),
HCMD_NAME(BT_COEX_CI),
HCMD_NAME(PHY_CONFIGURATION_CMD),
HCMD_NAME(CALIB_RES_NOTIF_PHY_DB),
HCMD_NAME(PHY_DB_CMD),
HCMD_NAME(SCAN_OFFLOAD_COMPLETE),
HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD),
HCMD_NAME(POWER_TABLE_CMD),
HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION),
HCMD_NAME(REPLY_THERMAL_MNG_BACKOFF),
HCMD_NAME(NVM_ACCESS_CMD),
HCMD_NAME(BEACON_NOTIFICATION),
HCMD_NAME(BEACON_TEMPLATE_CMD),
HCMD_NAME(TX_ANT_CONFIGURATION_CMD),
HCMD_NAME(BT_CONFIG),
HCMD_NAME(STATISTICS_CMD),
HCMD_NAME(STATISTICS_NOTIFICATION),
HCMD_NAME(EOSP_NOTIFICATION),
HCMD_NAME(REDUCE_TX_POWER_CMD),
HCMD_NAME(MISSED_BEACONS_NOTIFICATION),
HCMD_NAME(TDLS_CONFIG_CMD),
HCMD_NAME(MAC_PM_POWER_TABLE),
HCMD_NAME(TDLS_CHANNEL_SWITCH_NOTIFICATION),
HCMD_NAME(MFUART_LOAD_NOTIFICATION),
HCMD_NAME(RSS_CONFIG_CMD),
HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC),
HCMD_NAME(REPLY_RX_PHY_CMD),
HCMD_NAME(REPLY_RX_MPDU_CMD),
HCMD_NAME(BAR_FRAME_RELEASE),
HCMD_NAME(FRAME_RELEASE),
HCMD_NAME(BA_NOTIF),
HCMD_NAME(MCC_UPDATE_CMD),
HCMD_NAME(MCC_CHUB_UPDATE_CMD),
HCMD_NAME(MARKER_CMD),
HCMD_NAME(BT_PROFILE_NOTIFICATION),
HCMD_NAME(MCAST_FILTER_CMD),
HCMD_NAME(REPLY_SF_CFG_CMD),
HCMD_NAME(REPLY_BEACON_FILTERING_CMD),
HCMD_NAME(D3_CONFIG_CMD),
HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD),
HCMD_NAME(OFFLOADS_QUERY_CMD),
HCMD_NAME(MATCH_FOUND_NOTIFICATION),
HCMD_NAME(DTS_MEASUREMENT_NOTIFICATION),
HCMD_NAME(WOWLAN_PATTERNS),
HCMD_NAME(WOWLAN_CONFIGURATION),
HCMD_NAME(WOWLAN_TSC_RSC_PARAM),
HCMD_NAME(WOWLAN_TKIP_PARAM),
HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL),
HCMD_NAME(WOWLAN_GET_STATUSES),
HCMD_NAME(SCAN_ITERATION_COMPLETE),
HCMD_NAME(D0I3_END_CMD),
HCMD_NAME(LTR_CONFIG),
HCMD_NAME(LDBG_CONFIG_CMD),
};
/* Please keep this array *SORTED* by hex value.
* Access is done through binary search
*/
static const struct iwl_hcmd_names iwl_mvm_system_names[] = {
HCMD_NAME(SHARED_MEM_CFG_CMD),
HCMD_NAME(INIT_EXTENDED_CFG_CMD),
HCMD_NAME(FW_ERROR_RECOVERY_CMD),
HCMD_NAME(RFI_CONFIG_CMD),
HCMD_NAME(RFI_GET_FREQ_TABLE_CMD),
HCMD_NAME(SYSTEM_FEATURES_CONTROL_CMD),
HCMD_NAME(RFI_DEACTIVATE_NOTIF),
};
/* Please keep this array *SORTED* by hex value.
* Access is done through binary search
*/
static const struct iwl_hcmd_names iwl_mvm_mac_conf_names[] = {
HCMD_NAME(CHANNEL_SWITCH_TIME_EVENT_CMD),
HCMD_NAME(SESSION_PROTECTION_CMD),
HCMD_NAME(SESSION_PROTECTION_NOTIF),
HCMD_NAME(CHANNEL_SWITCH_START_NOTIF),
};
/* Please keep this array *SORTED* by hex value.
* Access is done through binary search
*/
static const struct iwl_hcmd_names iwl_mvm_phy_names[] = {
HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE),
HCMD_NAME(CTDP_CONFIG_CMD),
HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD),
HCMD_NAME(PER_CHAIN_LIMIT_OFFSET_CMD),
HCMD_NAME(CT_KILL_NOTIFICATION),
HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE),
};
/* Please keep this array *SORTED* by hex value.
* Access is done through binary search
*/
static const struct iwl_hcmd_names iwl_mvm_data_path_names[] = {
HCMD_NAME(DQA_ENABLE_CMD),
HCMD_NAME(UPDATE_MU_GROUPS_CMD),
HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD),
HCMD_NAME(STA_HE_CTXT_CMD),
HCMD_NAME(RLC_CONFIG_CMD),
HCMD_NAME(RFH_QUEUE_CONFIG_CMD),
HCMD_NAME(TLC_MNG_CONFIG_CMD),
HCMD_NAME(CHEST_COLLECTOR_FILTER_CONFIG_CMD),
HCMD_NAME(SCD_QUEUE_CONFIG_CMD),
HCMD_NAME(SEC_KEY_CMD),
HCMD_NAME(MONITOR_NOTIF),
HCMD_NAME(THERMAL_DUAL_CHAIN_REQUEST),
HCMD_NAME(STA_PM_NOTIF),
HCMD_NAME(MU_GROUP_MGMT_NOTIF),
HCMD_NAME(RX_QUEUES_NOTIFICATION),
};
/* Please keep this array *SORTED* by hex value.
* Access is done through binary search
*/
static const struct iwl_hcmd_names iwl_mvm_scan_names[] = {
HCMD_NAME(OFFLOAD_MATCH_INFO_NOTIF),
};
/* Please keep this array *SORTED* by hex value.
* Access is done through binary search
*/
static const struct iwl_hcmd_names iwl_mvm_location_names[] = {
HCMD_NAME(TOF_RANGE_REQ_CMD),
HCMD_NAME(TOF_CONFIG_CMD),
HCMD_NAME(TOF_RANGE_ABORT_CMD),
HCMD_NAME(TOF_RANGE_REQ_EXT_CMD),
HCMD_NAME(TOF_RESPONDER_CONFIG_CMD),
HCMD_NAME(TOF_RESPONDER_DYN_CONFIG_CMD),
HCMD_NAME(TOF_LC_NOTIF),
HCMD_NAME(TOF_RESPONDER_STATS),
HCMD_NAME(TOF_MCSI_DEBUG_NOTIF),
HCMD_NAME(TOF_RANGE_RESPONSE_NOTIF),
};
/* Please keep this array *SORTED* by hex value.
* Access is done through binary search
*/
static const struct iwl_hcmd_names iwl_mvm_prot_offload_names[] = {
HCMD_NAME(WOWLAN_WAKE_PKT_NOTIFICATION),
HCMD_NAME(WOWLAN_INFO_NOTIFICATION),
HCMD_NAME(D3_END_NOTIFICATION),
HCMD_NAME(STORED_BEACON_NTF),
};
/* Please keep this array *SORTED* by hex value.
* Access is done through binary search
*/
static const struct iwl_hcmd_names iwl_mvm_regulatory_and_nvm_names[] = {
HCMD_NAME(NVM_ACCESS_COMPLETE),
HCMD_NAME(NVM_GET_INFO),
HCMD_NAME(TAS_CONFIG),
};
static const struct iwl_hcmd_arr iwl_mvm_groups[] = {
[LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
[LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
[SYSTEM_GROUP] = HCMD_ARR(iwl_mvm_system_names),
[MAC_CONF_GROUP] = HCMD_ARR(iwl_mvm_mac_conf_names),
[PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names),
[DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names),
[SCAN_GROUP] = HCMD_ARR(iwl_mvm_scan_names),
[LOCATION_GROUP] = HCMD_ARR(iwl_mvm_location_names),
[PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names),
[REGULATORY_AND_NVM_GROUP] =
HCMD_ARR(iwl_mvm_regulatory_and_nvm_names),
};
/* this forward declaration can avoid to export the function */
static void iwl_mvm_async_handlers_wk(struct work_struct *wk);
static u32 iwl_mvm_min_backoff(struct iwl_mvm *mvm)
{
const struct iwl_pwr_tx_backoff *backoff = mvm->cfg->pwr_tx_backoffs;
u64 dflt_pwr_limit;
if (!backoff)
return 0;
dflt_pwr_limit = iwl_acpi_get_pwr_limit(mvm->dev);
while (backoff->pwr) {
if (dflt_pwr_limit >= backoff->pwr)
return backoff->backoff;
backoff++;
}
return 0;
}
static void iwl_mvm_tx_unblock_dwork(struct work_struct *work)
{
struct iwl_mvm *mvm =
container_of(work, struct iwl_mvm, cs_tx_unblock_dwork.work);
struct ieee80211_vif *tx_blocked_vif;
struct iwl_mvm_vif *mvmvif;
mutex_lock(&mvm->mutex);
tx_blocked_vif =
rcu_dereference_protected(mvm->csa_tx_blocked_vif,
lockdep_is_held(&mvm->mutex));
if (!tx_blocked_vif)
goto unlock;
mvmvif = iwl_mvm_vif_from_mac80211(tx_blocked_vif);
iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false);
RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
unlock:
mutex_unlock(&mvm->mutex);
}
static void iwl_mvm_fwrt_dump_start(void *ctx)
{
struct iwl_mvm *mvm = ctx;
mutex_lock(&mvm->mutex);
}
static void iwl_mvm_fwrt_dump_end(void *ctx)
{
struct iwl_mvm *mvm = ctx;
mutex_unlock(&mvm->mutex);
}
static bool iwl_mvm_fwrt_fw_running(void *ctx)
{
return iwl_mvm_firmware_running(ctx);
}
static int iwl_mvm_fwrt_send_hcmd(void *ctx, struct iwl_host_cmd *host_cmd)
{
struct iwl_mvm *mvm = (struct iwl_mvm *)ctx;
int ret;
mutex_lock(&mvm->mutex);
ret = iwl_mvm_send_cmd(mvm, host_cmd);
mutex_unlock(&mvm->mutex);
return ret;
}
static bool iwl_mvm_d3_debug_enable(void *ctx)
{
return IWL_MVM_D3_DEBUG;
}
static const struct iwl_fw_runtime_ops iwl_mvm_fwrt_ops = {
.dump_start = iwl_mvm_fwrt_dump_start,
.dump_end = iwl_mvm_fwrt_dump_end,
.fw_running = iwl_mvm_fwrt_fw_running,
.send_hcmd = iwl_mvm_fwrt_send_hcmd,
.d3_debug_enable = iwl_mvm_d3_debug_enable,
};
static int iwl_mvm_start_get_nvm(struct iwl_mvm *mvm)
{
struct iwl_trans *trans = mvm->trans;
int ret;
if (trans->csme_own) {
if (WARN(!mvm->mei_registered,
"csme is owner, but we aren't registered to iwlmei\n"))
goto get_nvm_from_fw;
mvm->mei_nvm_data = iwl_mei_get_nvm();
if (mvm->mei_nvm_data) {
/*
* mvm->mei_nvm_data is set and because of that,
* we'll load the NVM from the FW when we'll get
* ownership.
*/
mvm->nvm_data =
iwl_parse_mei_nvm_data(trans, trans->cfg,
mvm->mei_nvm_data, mvm->fw);
return 0;
}
IWL_ERR(mvm,
"Got a NULL NVM from CSME, trying to get it from the device\n");
}
get_nvm_from_fw:
rtnl_lock();
wiphy_lock(mvm->hw->wiphy);
mutex_lock(&mvm->mutex);
ret = iwl_trans_start_hw(mvm->trans);
if (ret) {
mutex_unlock(&mvm->mutex);
wiphy_unlock(mvm->hw->wiphy);
rtnl_unlock();
return ret;
}
ret = iwl_run_init_mvm_ucode(mvm);
if (ret && ret != -ERFKILL)
iwl_fw_dbg_error_collect(&mvm->fwrt, FW_DBG_TRIGGER_DRIVER);
if (!ret && iwl_mvm_is_lar_supported(mvm)) {
mvm->hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
ret = iwl_mvm_init_mcc(mvm);
}
if (!iwlmvm_mod_params.init_dbg || !ret)
iwl_mvm_stop_device(mvm);
mutex_unlock(&mvm->mutex);
wiphy_unlock(mvm->hw->wiphy);
rtnl_unlock();
if (ret)
IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret);
return ret;
}
static int iwl_mvm_start_post_nvm(struct iwl_mvm *mvm)
{
struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused;
int ret;
iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx);
ret = iwl_mvm_mac_setup_register(mvm);
if (ret)
return ret;
mvm->hw_registered = true;
iwl_mvm_dbgfs_register(mvm);
wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy,
mvm->mei_rfkill_blocked,
RFKILL_HARD_BLOCK_NOT_OWNER);
iwl_mvm_mei_set_sw_rfkill_state(mvm);
return 0;
}
struct iwl_mvm_frob_txf_data {
u8 *buf;
size_t buflen;
};
static void iwl_mvm_frob_txf_key_iter(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
struct ieee80211_key_conf *key,
void *data)
{
struct iwl_mvm_frob_txf_data *txf = data;
u8 keylen, match, matchend;
u8 *keydata;
size_t i;
switch (key->cipher) {
case WLAN_CIPHER_SUITE_CCMP:
keydata = key->key;
keylen = key->keylen;
break;
case WLAN_CIPHER_SUITE_WEP40:
case WLAN_CIPHER_SUITE_WEP104:
case WLAN_CIPHER_SUITE_TKIP:
/*
* WEP has short keys which might show up in the payload,
* and then you can deduce the key, so in this case just
* remove all FIFO data.
* For TKIP, we don't know the phase 2 keys here, so same.
*/
memset(txf->buf, 0xBB, txf->buflen);
return;
default:
return;
}
/* scan for key material and clear it out */
match = 0;
for (i = 0; i < txf->buflen; i++) {
if (txf->buf[i] != keydata[match]) {
match = 0;
continue;
}
match++;
if (match == keylen) {
memset(txf->buf + i - keylen, 0xAA, keylen);
match = 0;
}
}
/* we're dealing with a FIFO, so check wrapped around data */
matchend = match;
for (i = 0; match && i < keylen - match; i++) {
if (txf->buf[i] != keydata[match])
break;
match++;
if (match == keylen) {
memset(txf->buf, 0xAA, i + 1);
memset(txf->buf + txf->buflen - matchend, 0xAA,
matchend);
break;
}
}
}
static void iwl_mvm_frob_txf(void *ctx, void *buf, size_t buflen)
{
struct iwl_mvm_frob_txf_data txf = {
.buf = buf,
.buflen = buflen,
};
struct iwl_mvm *mvm = ctx;
/* embedded key material exists only on old API */
if (iwl_mvm_has_new_tx_api(mvm))
return;
rcu_read_lock();
ieee80211_iter_keys_rcu(mvm->hw, NULL, iwl_mvm_frob_txf_key_iter, &txf);
rcu_read_unlock();
}
static void iwl_mvm_frob_hcmd(void *ctx, void *hcmd, size_t len)
{
/* we only use wide headers for commands */
struct iwl_cmd_header_wide *hdr = hcmd;
unsigned int frob_start = sizeof(*hdr), frob_end = 0;
if (len < sizeof(hdr))
return;
/* all the commands we care about are in LONG_GROUP */
if (hdr->group_id != LONG_GROUP)
return;
switch (hdr->cmd) {
case WEP_KEY:
case WOWLAN_TKIP_PARAM:
case WOWLAN_KEK_KCK_MATERIAL:
case ADD_STA_KEY:
/*
* blank out everything here, easier than dealing
* with the various versions of the command
*/
frob_end = INT_MAX;
break;
case MGMT_MCAST_KEY:
frob_start = offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk);
BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) !=
offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk));
frob_end = offsetofend(struct iwl_mvm_mgmt_mcast_key_cmd, igtk);
BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) <
offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk));
break;
}
if (frob_start >= frob_end)
return;
if (frob_end > len)
frob_end = len;
memset((u8 *)hcmd + frob_start, 0xAA, frob_end - frob_start);
}
static void iwl_mvm_frob_mem(void *ctx, u32 mem_addr, void *mem, size_t buflen)
{
const struct iwl_dump_exclude *excl;
struct iwl_mvm *mvm = ctx;
int i;
switch (mvm->fwrt.cur_fw_img) {
case IWL_UCODE_INIT:
default:
/* not relevant */
return;
case IWL_UCODE_REGULAR:
case IWL_UCODE_REGULAR_USNIFFER:
excl = mvm->fw->dump_excl;
break;
case IWL_UCODE_WOWLAN:
excl = mvm->fw->dump_excl_wowlan;
break;
}
BUILD_BUG_ON(sizeof(mvm->fw->dump_excl) !=
sizeof(mvm->fw->dump_excl_wowlan));
for (i = 0; i < ARRAY_SIZE(mvm->fw->dump_excl); i++) {
u32 start, end;
if (!excl[i].addr || !excl[i].size)
continue;
start = excl[i].addr;
end = start + excl[i].size;
if (end <= mem_addr || start >= mem_addr + buflen)
continue;
if (start < mem_addr)
start = mem_addr;
if (end > mem_addr + buflen)
end = mem_addr + buflen;
memset((u8 *)mem + start - mem_addr, 0xAA, end - start);
}
}
static const struct iwl_dump_sanitize_ops iwl_mvm_sanitize_ops = {
.frob_txf = iwl_mvm_frob_txf,
.frob_hcmd = iwl_mvm_frob_hcmd,
.frob_mem = iwl_mvm_frob_mem,
};
static void iwl_mvm_me_conn_status(void *priv, const struct iwl_mei_conn_info *conn_info)
{
struct iwl_mvm *mvm = priv;
struct iwl_mvm_csme_conn_info *prev_conn_info, *curr_conn_info;
/*
* This is protected by the guarantee that this function will not be
* called twice on two different threads
*/
prev_conn_info = rcu_dereference_protected(mvm->csme_conn_info, true);
curr_conn_info = kzalloc(sizeof(*curr_conn_info), GFP_KERNEL);
if (!curr_conn_info)
return;
curr_conn_info->conn_info = *conn_info;
rcu_assign_pointer(mvm->csme_conn_info, curr_conn_info);
if (prev_conn_info)
kfree_rcu(prev_conn_info, rcu_head);
}
static void iwl_mvm_mei_rfkill(void *priv, bool blocked)
{
struct iwl_mvm *mvm = priv;
mvm->mei_rfkill_blocked = blocked;
if (!mvm->hw_registered)
return;
wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy,
mvm->mei_rfkill_blocked,
RFKILL_HARD_BLOCK_NOT_OWNER);
}
static void iwl_mvm_mei_roaming_forbidden(void *priv, bool forbidden)
{
struct iwl_mvm *mvm = priv;
if (!mvm->hw_registered || !mvm->csme_vif)
return;
iwl_mvm_send_roaming_forbidden_event(mvm, mvm->csme_vif, forbidden);
}
static void iwl_mvm_sap_connected_wk(struct work_struct *wk)
{
struct iwl_mvm *mvm =
container_of(wk, struct iwl_mvm, sap_connected_wk);
int ret;
ret = iwl_mvm_start_get_nvm(mvm);
if (ret)
goto out_free;
ret = iwl_mvm_start_post_nvm(mvm);
if (ret)
goto out_free;
return;
out_free:
IWL_ERR(mvm, "Couldn't get started...\n");
iwl_mei_start_unregister();
iwl_mei_unregister_complete();
iwl_fw_flush_dumps(&mvm->fwrt);
iwl_mvm_thermal_exit(mvm);
iwl_fw_runtime_free(&mvm->fwrt);
iwl_phy_db_free(mvm->phy_db);
kfree(mvm->scan_cmd);
iwl_trans_op_mode_leave(mvm->trans);
kfree(mvm->nvm_data);
kfree(mvm->mei_nvm_data);
ieee80211_free_hw(mvm->hw);
}
static void iwl_mvm_mei_sap_connected(void *priv)
{
struct iwl_mvm *mvm = priv;
if (!mvm->hw_registered)
schedule_work(&mvm->sap_connected_wk);
}
static void iwl_mvm_mei_nic_stolen(void *priv)
{
struct iwl_mvm *mvm = priv;
rtnl_lock();
cfg80211_shutdown_all_interfaces(mvm->hw->wiphy);
rtnl_unlock();
}
static const struct iwl_mei_ops mei_ops = {
.me_conn_status = iwl_mvm_me_conn_status,
.rfkill = iwl_mvm_mei_rfkill,
.roaming_forbidden = iwl_mvm_mei_roaming_forbidden,
.sap_connected = iwl_mvm_mei_sap_connected,
.nic_stolen = iwl_mvm_mei_nic_stolen,
};
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,
};
u32 max_agg;
size_t scan_size;
u32 min_backoff;
struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused;
/*
* We use IWL_MVM_STATION_COUNT_MAX 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_MAX);
/********************************
* 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;
if (trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_BZ)
max_agg = IEEE80211_MAX_AMPDU_BUF_EHT;
else
max_agg = IEEE80211_MAX_AMPDU_BUF_HE;
hw->max_rx_aggregation_subframes = max_agg;
if (cfg->max_tx_agg_size)
hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size;
else
hw->max_tx_aggregation_subframes = max_agg;
op_mode = hw->priv;
mvm = IWL_OP_MODE_GET_MVM(op_mode);
mvm->dev = trans->dev;
mvm->trans = trans;
mvm->cfg = cfg;
mvm->fw = fw;
mvm->hw = hw;
iwl_fw_runtime_init(&mvm->fwrt, trans, fw, &iwl_mvm_fwrt_ops, mvm,
&iwl_mvm_sanitize_ops, mvm, dbgfs_dir);
iwl_mvm_get_acpi_tables(mvm);
iwl_uefi_get_sgom_table(trans, &mvm->fwrt);
iwl_uefi_get_step_table(trans);
mvm->init_status = 0;
if (iwl_mvm_has_new_rx_api(mvm)) {
op_mode->ops = &iwl_mvm_ops_mq;
trans->rx_mpdu_cmd_hdr_size =
(trans->trans_cfg->device_family >=
IWL_DEVICE_FAMILY_AX210) ?
sizeof(struct iwl_rx_mpdu_desc) :
IWL_RX_DESC_SIZE_V1;
} else {
op_mode->ops = &iwl_mvm_ops;
trans->rx_mpdu_cmd_hdr_size =
sizeof(struct iwl_rx_mpdu_res_start);
if (WARN_ON(trans->num_rx_queues > 1))
goto out_free;
}
mvm->fw_restart = iwlwifi_mod_params.fw_restart ? -1 : 0;
if (iwl_mvm_has_new_tx_api(mvm)) {
/*
* If we have the new TX/queue allocation API initialize them
* all to invalid numbers. We'll rewrite the ones that we need
* later, but that doesn't happen for all of them all of the
* time (e.g. P2P Device is optional), and if a dynamic queue
* ends up getting number 2 (IWL_MVM_DQA_P2P_DEVICE_QUEUE) then
* iwl_mvm_is_static_queue() erroneously returns true, and we
* might have things getting stuck.
*/
mvm->aux_queue = IWL_MVM_INVALID_QUEUE;
mvm->snif_queue = IWL_MVM_INVALID_QUEUE;
mvm->probe_queue = IWL_MVM_INVALID_QUEUE;
mvm->p2p_dev_queue = IWL_MVM_INVALID_QUEUE;
} else {
mvm->aux_queue = IWL_MVM_DQA_AUX_QUEUE;
mvm->snif_queue = IWL_MVM_DQA_INJECT_MONITOR_QUEUE;
mvm->probe_queue = IWL_MVM_DQA_AP_PROBE_RESP_QUEUE;
mvm->p2p_dev_queue = IWL_MVM_DQA_P2P_DEVICE_QUEUE;
}
mvm->sf_state = SF_UNINIT;
if (iwl_mvm_has_unified_ucode(mvm))
iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_REGULAR);
else
iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_INIT);
mvm->drop_bcn_ap_mode = true;
mutex_init(&mvm->mutex);
spin_lock_init(&mvm->async_handlers_lock);
INIT_LIST_HEAD(&mvm->time_event_list);
INIT_LIST_HEAD(&mvm->aux_roc_te_list);
INIT_LIST_HEAD(&mvm->async_handlers_list);
spin_lock_init(&mvm->time_event_lock);
INIT_LIST_HEAD(&mvm->ftm_initiator.loc_list);
INIT_LIST_HEAD(&mvm->ftm_initiator.pasn_list);
INIT_LIST_HEAD(&mvm->resp_pasn_list);
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->sap_connected_wk, iwl_mvm_sap_connected_wk);
INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work);
INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk);
INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk);
INIT_LIST_HEAD(&mvm->add_stream_txqs);
spin_lock_init(&mvm->add_stream_lock);
init_waitqueue_head(&mvm->rx_sync_waitq);
mvm->queue_sync_state = 0;
SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev);
spin_lock_init(&mvm->tcm.lock);
INIT_DELAYED_WORK(&mvm->tcm.work, iwl_mvm_tcm_work);
mvm->tcm.ts = jiffies;
mvm->tcm.ll_ts = jiffies;
mvm->tcm.uapsd_nonagg_ts = jiffies;
INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork);
mvm->cmd_ver.range_resp =
iwl_fw_lookup_notif_ver(mvm->fw, LOCATION_GROUP,
TOF_RANGE_RESPONSE_NOTIF, 5);
/* we only support up to version 9 */
if (WARN_ON_ONCE(mvm->cmd_ver.range_resp > 9))
goto out_free;
/*
* 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);
switch (iwlwifi_mod_params.amsdu_size) {
case IWL_AMSDU_DEF:
trans_cfg.rx_buf_size = IWL_AMSDU_4K;
break;
case IWL_AMSDU_4K:
trans_cfg.rx_buf_size = IWL_AMSDU_4K;
break;
case IWL_AMSDU_8K:
trans_cfg.rx_buf_size = IWL_AMSDU_8K;
break;
case IWL_AMSDU_12K:
trans_cfg.rx_buf_size = IWL_AMSDU_12K;
break;
default:
pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME,
iwlwifi_mod_params.amsdu_size);
trans_cfg.rx_buf_size = IWL_AMSDU_4K;
}
trans->wide_cmd_header = true;
trans_cfg.bc_table_dword =
mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_AX210;
trans_cfg.command_groups = iwl_mvm_groups;
trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups);
trans_cfg.cmd_queue = IWL_MVM_DQA_CMD_QUEUE;
trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD;
trans_cfg.scd_set_active = true;
trans_cfg.cb_data_offs = offsetof(struct ieee80211_tx_info,
driver_data[2]);
/* Set a short watchdog for the command queue */
trans_cfg.cmd_q_wdg_timeout =
iwl_mvm_get_wd_timeout(mvm, NULL, false, true);
snprintf(mvm->hw->wiphy->fw_version,
sizeof(mvm->hw->wiphy->fw_version),
"%s", fw->fw_version);
trans_cfg.fw_reset_handshake = fw_has_capa(&mvm->fw->ucode_capa,
IWL_UCODE_TLV_CAPA_FW_RESET_HANDSHAKE);
trans_cfg.queue_alloc_cmd_ver =
iwl_fw_lookup_cmd_ver(mvm->fw,
WIDE_ID(DATA_PATH_GROUP,
SCD_QUEUE_CONFIG_CMD),
0);
mvm->sta_remove_requires_queue_remove =
trans_cfg.queue_alloc_cmd_ver > 0;
/* Configure transport layer */
iwl_trans_configure(mvm->trans, &trans_cfg);
trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD;
trans->dbg.dest_tlv = mvm->fw->dbg.dest_tlv;
trans->dbg.n_dest_reg = mvm->fw->dbg.n_dest_reg;
memcpy(trans->dbg.conf_tlv, mvm->fw->dbg.conf_tlv,
sizeof(trans->dbg.conf_tlv));
trans->dbg.trigger_tlv = mvm->fw->dbg.trigger_tlv;
trans->iml = mvm->fw->iml;
trans->iml_len = mvm->fw->iml_len;
/* 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->trans->name, mvm->trans->hw_rev);
if (iwlwifi_mod_params.nvm_file)
mvm->nvm_file_name = iwlwifi_mod_params.nvm_file;
else
IWL_DEBUG_EEPROM(mvm->trans->dev,
"working without external nvm file\n");
scan_size = iwl_mvm_scan_size(mvm);
mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL);
if (!mvm->scan_cmd)
goto out_free;
mvm->scan_cmd_size = scan_size;
/* invalidate ids to prevent accidental removal of sta_id 0 */
mvm->aux_sta.sta_id = IWL_MVM_INVALID_STA;
mvm->snif_sta.sta_id = IWL_MVM_INVALID_STA;
/* Set EBS as successful as long as not stated otherwise by the FW. */
mvm->last_ebs_successful = true;
min_backoff = iwl_mvm_min_backoff(mvm);
iwl_mvm_thermal_initialize(mvm, min_backoff);
if (!iwl_mvm_has_new_rx_stats_api(mvm))
memset(&mvm->rx_stats_v3, 0,
sizeof(struct mvm_statistics_rx_v3));
else
memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx));
mvm->debugfs_dir = dbgfs_dir;
mvm->mei_registered = !iwl_mei_register(mvm, &mei_ops);
if (iwl_mvm_start_get_nvm(mvm)) {
/*
* Getting NVM failed while CSME is the owner, but we are
* registered to MEI, we'll get the NVM later when it'll be
* possible to get it from CSME.
*/
if (trans->csme_own && mvm->mei_registered)
return op_mode;
goto out_thermal_exit;
}
if (iwl_mvm_start_post_nvm(mvm))
goto out_thermal_exit;
return op_mode;
out_thermal_exit:
iwl_mvm_thermal_exit(mvm);
if (mvm->mei_registered) {
iwl_mei_start_unregister();
iwl_mei_unregister_complete();
}
out_free:
iwl_fw_flush_dumps(&mvm->fwrt);
iwl_fw_runtime_free(&mvm->fwrt);
if (iwlmvm_mod_params.init_dbg)
return op_mode;
iwl_phy_db_free(mvm->phy_db);
kfree(mvm->scan_cmd);
iwl_trans_op_mode_leave(trans);
ieee80211_free_hw(mvm->hw);
return NULL;
}
void iwl_mvm_stop_device(struct iwl_mvm *mvm)
{
lockdep_assert_held(&mvm->mutex);
iwl_fw_cancel_timestamp(&mvm->fwrt);
clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
iwl_fw_dbg_stop_sync(&mvm->fwrt);
iwl_trans_stop_device(mvm->trans);
iwl_free_fw_paging(&mvm->fwrt);
iwl_fw_dump_conf_clear(&mvm->fwrt);
iwl_mvm_mei_device_state(mvm, false);
}
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;
if (mvm->mei_registered) {
rtnl_lock();
iwl_mei_set_netdev(NULL);
rtnl_unlock();
iwl_mei_start_unregister();
}
/*
* After we unregister from mei, the worker can't be scheduled
* anymore.
*/
cancel_work_sync(&mvm->sap_connected_wk);
iwl_mvm_leds_exit(mvm);
iwl_mvm_thermal_exit(mvm);
/*
* If we couldn't get ownership on the device and we couldn't
* get the NVM from CSME, we haven't registered to mac80211.
* In that case, we didn't fail op_mode_start, because we are
* waiting for CSME to allow us to get the NVM to register to
* mac80211. If that didn't happen, we haven't registered to
* mac80211, hence the if below.
*/
if (mvm->hw_registered)
ieee80211_unregister_hw(mvm->hw);
kfree(mvm->scan_cmd);
kfree(mvm->mcast_filter_cmd);
mvm->mcast_filter_cmd = NULL;
kfree(mvm->error_recovery_buf);
mvm->error_recovery_buf = NULL;
iwl_trans_op_mode_leave(mvm->trans);
iwl_phy_db_free(mvm->phy_db);
mvm->phy_db = NULL;
kfree(mvm->nvm_data);
kfree(mvm->mei_nvm_data);
kfree(rcu_access_pointer(mvm->csme_conn_info));
kfree(mvm->temp_nvm_data);
for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++)
kfree(mvm->nvm_sections[i].data);
cancel_delayed_work_sync(&mvm->tcm.work);
iwl_fw_runtime_free(&mvm->fwrt);
mutex_destroy(&mvm->mutex);
if (mvm->mei_registered)
iwl_mei_unregister_complete();
ieee80211_free_hw(mvm->hw);
}
struct iwl_async_handler_entry {
struct list_head list;
struct iwl_rx_cmd_buffer rxb;
enum iwl_rx_handler_context context;
void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
};
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;
LIST_HEAD(local_list);
/* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */
/*
* 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->context == RX_HANDLER_ASYNC_LOCKED)
mutex_lock(&mvm->mutex);
entry->fn(mvm, &entry->rxb);
iwl_free_rxb(&entry->rxb);
list_del(&entry->list);
if (entry->context == RX_HANDLER_ASYNC_LOCKED)
mutex_unlock(&mvm->mutex);
kfree(entry);
}
}
static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm,
struct iwl_rx_packet *pkt)
{
struct iwl_fw_dbg_trigger_tlv *trig;
struct iwl_fw_dbg_trigger_cmd *cmds_trig;
int i;
trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL,
FW_DBG_TRIGGER_FW_NOTIF);
if (!trig)
return;
cmds_trig = (void *)trig->data;
for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) {
/* don't collect on CMD 0 */
if (!cmds_trig->cmds[i].cmd_id)
break;
if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd ||
cmds_trig->cmds[i].group_id != pkt->hdr.group_id)
continue;
iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
"CMD 0x%02x.%02x received",
pkt->hdr.group_id, pkt->hdr.cmd);
break;
}
}
static void iwl_mvm_rx_common(struct iwl_mvm *mvm,
struct iwl_rx_cmd_buffer *rxb,
struct iwl_rx_packet *pkt)
{
unsigned int pkt_len = iwl_rx_packet_payload_len(pkt);
int i;
union iwl_dbg_tlv_tp_data tp_data = { .fw_pkt = pkt };
iwl_dbg_tlv_time_point(&mvm->fwrt,
IWL_FW_INI_TIME_POINT_FW_RSP_OR_NOTIF, &tp_data);
iwl_mvm_rx_check_trigger(mvm, pkt);
/*
* 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 != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd))
continue;
if (unlikely(pkt_len < rx_h->min_size))
return;
if (rx_h->context == RX_HANDLER_SYNC) {
rx_h->fn(mvm, rxb);
return;
}
entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
/* we can't do much... */
if (!entry)
return;
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;
entry->context = rx_h->context;
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;
}
}
static void iwl_mvm_rx(struct iwl_op_mode *op_mode,
struct napi_struct *napi,
struct iwl_rx_cmd_buffer *rxb)
{
struct iwl_rx_packet *pkt = rxb_addr(rxb);
struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
iwl_mvm_rx_rx_mpdu(mvm, napi, rxb);
else if (cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_PHY_CMD))
iwl_mvm_rx_rx_phy_cmd(mvm, rxb);
else
iwl_mvm_rx_common(mvm, rxb, pkt);
}
void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode,
struct napi_struct *napi,
struct iwl_rx_cmd_buffer *rxb)
{
struct iwl_rx_packet *pkt = rxb_addr(rxb);
struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0);
else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP,
RX_QUEUES_NOTIFICATION)))
iwl_mvm_rx_queue_notif(mvm, napi, rxb, 0);
else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE))
iwl_mvm_rx_frame_release(mvm, napi, rxb, 0);
else if (cmd == WIDE_ID(LEGACY_GROUP, BAR_FRAME_RELEASE))
iwl_mvm_rx_bar_frame_release(mvm, napi, rxb, 0);
else if (cmd == WIDE_ID(DATA_PATH_GROUP, RX_NO_DATA_NOTIF))
iwl_mvm_rx_monitor_no_data(mvm, napi, rxb, 0);
else
iwl_mvm_rx_common(mvm, rxb, pkt);
}
static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode,
const struct iwl_device_cmd *cmd)
{
struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
/*
* For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA
* commands that need to block the Tx queues.
*/
iwl_trans_block_txq_ptrs(mvm->trans, false);
}
static int iwl_mvm_is_static_queue(struct iwl_mvm *mvm, int queue)
{
return queue == mvm->aux_queue || queue == mvm->probe_queue ||
queue == mvm->p2p_dev_queue || queue == mvm->snif_queue;
}
static void iwl_mvm_queue_state_change(struct iwl_op_mode *op_mode,
int hw_queue, bool start)
{
struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
struct ieee80211_sta *sta;
struct ieee80211_txq *txq;
struct iwl_mvm_txq *mvmtxq;
int i;
unsigned long tid_bitmap;
struct iwl_mvm_sta *mvmsta;
u8 sta_id;
sta_id = iwl_mvm_has_new_tx_api(mvm) ?
mvm->tvqm_info[hw_queue].sta_id :
mvm->queue_info[hw_queue].ra_sta_id;
if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations))
return;
rcu_read_lock();
sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
if (IS_ERR_OR_NULL(sta))
goto out;
mvmsta = iwl_mvm_sta_from_mac80211(sta);
if (iwl_mvm_is_static_queue(mvm, hw_queue)) {
if (!start)
ieee80211_stop_queues(mvm->hw);
else if (mvmsta->sta_state != IEEE80211_STA_NOTEXIST)
ieee80211_wake_queues(mvm->hw);
goto out;
}
if (iwl_mvm_has_new_tx_api(mvm)) {
int tid = mvm->tvqm_info[hw_queue].txq_tid;
tid_bitmap = BIT(tid);
} else {
tid_bitmap = mvm->queue_info[hw_queue].tid_bitmap;
}
for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT + 1) {
int tid = i;
if (tid == IWL_MAX_TID_COUNT)
tid = IEEE80211_NUM_TIDS;
txq = sta->txq[tid];
mvmtxq = iwl_mvm_txq_from_mac80211(txq);
if (start)
clear_bit(IWL_MVM_TXQ_STATE_STOP_FULL, &mvmtxq->state);
else
set_bit(IWL_MVM_TXQ_STATE_STOP_FULL, &mvmtxq->state);
if (start && mvmsta->sta_state != IEEE80211_STA_NOTEXIST)
iwl_mvm_mac_itxq_xmit(mvm->hw, txq);
}
out:
rcu_read_unlock();
}
static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
{
iwl_mvm_queue_state_change(op_mode, hw_queue, false);
}
static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
{
iwl_mvm_queue_state_change(op_mode, hw_queue, true);
}
static void iwl_mvm_set_rfkill_state(struct iwl_mvm *mvm)
{
bool state = iwl_mvm_is_radio_killed(mvm);
if (state)
wake_up(&mvm->rx_sync_waitq);
wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state);
}
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);
iwl_mvm_set_rfkill_state(mvm);
}
struct iwl_mvm_csme_conn_info *iwl_mvm_get_csme_conn_info(struct iwl_mvm *mvm)
{
return rcu_dereference_protected(mvm->csme_conn_info,
lockdep_is_held(&mvm->mutex));
}
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);
bool rfkill_safe_init_done = READ_ONCE(mvm->rfkill_safe_init_done);
bool unified = iwl_mvm_has_unified_ucode(mvm);
if (state)
set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
else
clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
iwl_mvm_set_rfkill_state(mvm);
/* iwl_run_init_mvm_ucode is waiting for results, abort it. */
if (rfkill_safe_init_done)
iwl_abort_notification_waits(&mvm->notif_wait);
/*
* Don't ask the transport to stop the firmware. We'll do it
* after cfg80211 takes us down.
*/
if (unified)
return false;
/*
* Stop the device if we run OPERATIONAL firmware or if we are in the
* middle of the calibrations.
*/
return state && rfkill_safe_init_done;
}
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");
put_device(reprobe->dev);
kfree(reprobe);
module_put(THIS_MODULE);
}
void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
{
iwl_abort_notification_waits(&mvm->notif_wait);
iwl_dbg_tlv_del_timers(mvm->trans);
/*
* 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.
*/
iwl_mvm_report_scan_aborted(mvm);
/*
* 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 (!mvm->fw_restart && fw_error) {
iwl_fw_error_collect(&mvm->fwrt, false);
} else if (test_bit(IWL_MVM_STATUS_STARTING,
&mvm->status)) {
IWL_ERR(mvm, "Starting mac, retry will be triggered anyway\n");
} else if (test_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 = get_device(mvm->trans->dev);
INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk);
schedule_work(&reprobe->work);
} else if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
&mvm->status)) {
IWL_ERR(mvm, "HW restart already requested, but not started\n");
} else if (mvm->fwrt.cur_fw_img == IWL_UCODE_REGULAR &&
mvm->hw_registered &&
!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) {
/* This should be first thing before trying to collect any
* data to avoid endless loops if any HW error happens while
* collecting debug data.
*/
set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
if (mvm->fw->ucode_capa.error_log_size) {
u32 src_size = mvm->fw->ucode_capa.error_log_size;
u32 src_addr = mvm->fw->ucode_capa.error_log_addr;
u8 *recover_buf = kzalloc(src_size, GFP_ATOMIC);
if (recover_buf) {
mvm->error_recovery_buf = recover_buf;
iwl_trans_read_mem_bytes(mvm->trans,
src_addr,
recover_buf,
src_size);
}
}
iwl_fw_error_collect(&mvm->fwrt, false);
if (fw_error && mvm->fw_restart > 0) {
mvm->fw_restart--;
ieee80211_restart_hw(mvm->hw);
} else if (mvm->fwrt.trans->dbg.restart_required) {
IWL_DEBUG_INFO(mvm, "FW restart requested after debug collection\n");
mvm->fwrt.trans->dbg.restart_required = FALSE;
ieee80211_restart_hw(mvm->hw);
} else if (mvm->trans->trans_cfg->device_family <= IWL_DEVICE_FAMILY_8000) {
ieee80211_restart_hw(mvm->hw);
}
}
}
static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode, bool sync)
{
struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
if (mvm->pldr_sync)
return;
if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status) &&
!test_and_clear_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE,
&mvm->status))
iwl_mvm_dump_nic_error_log(mvm);
if (sync) {
iwl_fw_error_collect(&mvm->fwrt, true);
/*
* Currently, the only case for sync=true is during
* shutdown, so just stop in this case. If/when that
* changes, we need to be a bit smarter here.
*/
return;
}
/*
* If the firmware crashes while we're already considering it
* to be dead then don't ask for a restart, that cannot do
* anything useful anyway.
*/
if (!test_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status))
return;
iwl_mvm_nic_restart(mvm, false);
}
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, true);
}
static void iwl_op_mode_mvm_time_point(struct iwl_op_mode *op_mode,
enum iwl_fw_ini_time_point tp_id,
union iwl_dbg_tlv_tp_data *tp_data)
{
struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
iwl_dbg_tlv_time_point(&mvm->fwrt, tp_id, tp_data);
}
#define IWL_MVM_COMMON_OPS \
/* these could be differentiated */ \
.async_cb = iwl_mvm_async_cb, \
.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, \
/* as we only register one, these MUST be common! */ \
.start = iwl_op_mode_mvm_start, \
.stop = iwl_op_mode_mvm_stop, \
.time_point = iwl_op_mode_mvm_time_point
static const struct iwl_op_mode_ops iwl_mvm_ops = {
IWL_MVM_COMMON_OPS,
.rx = iwl_mvm_rx,
};
static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode,
struct napi_struct *napi,
struct iwl_rx_cmd_buffer *rxb,
unsigned int queue)
{
struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
struct iwl_rx_packet *pkt = rxb_addr(rxb);
u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
if (unlikely(queue >= mvm->trans->num_rx_queues))
return;
if (unlikely(cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)))
iwl_mvm_rx_frame_release(mvm, napi, rxb, queue);
else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP,
RX_QUEUES_NOTIFICATION)))
iwl_mvm_rx_queue_notif(mvm, napi, rxb, queue);
else if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue);
}
static const struct iwl_op_mode_ops iwl_mvm_ops_mq = {
IWL_MVM_COMMON_OPS,
.rx = iwl_mvm_rx_mq,
.rx_rss = iwl_mvm_rx_mq_rss,
};