@@ -7,6 +7,6 @@ iwlmvm-y += tt.o offloading.o tdls.o
iwlmvm-$(CONFIG_IWLWIFI_DEBUGFS) += debugfs.o debugfs-vif.o
iwlmvm-$(CONFIG_IWLWIFI_LEDS) += led.o
iwlmvm-y += tof.o fw-dbg.o
-iwlmvm-$(CONFIG_PM_SLEEP) += d3.o
+iwlmvm-$(CONFIG_PM) += d3.o
ccflags-y += -D__CHECK_ENDIAN__ -I$(src)/../
@@ -855,15 +855,38 @@ iwl_mvm_get_wowlan_config(struct iwl_mvm *mvm,
return 0;
}
+static void
+iwl_mvm_iter_d0i3_ap_keys(struct iwl_mvm *mvm,
+ struct ieee80211_vif *vif,
+ void (*iter)(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta,
+ struct ieee80211_key_conf *key,
+ void *data),
+ void *data)
+{
+ struct ieee80211_sta *ap_sta;
+
+ rcu_read_lock();
+
+ ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[mvm->d0i3_ap_sta_id]);
+ if (IS_ERR_OR_NULL(ap_sta))
+ goto out;
+
+ ieee80211_iter_keys_rcu(mvm->hw, vif, iter, data);
+out:
+ rcu_read_unlock();
+}
+
int iwl_mvm_wowlan_config_key_params(struct iwl_mvm *mvm,
struct ieee80211_vif *vif,
- bool configure_keys,
+ bool d0i3,
u32 cmd_flags)
{
struct iwl_wowlan_kek_kck_material_cmd kek_kck_cmd = {};
struct iwl_wowlan_tkip_params_cmd tkip_cmd = {};
struct wowlan_key_data key_data = {
- .configure_keys = configure_keys,
+ .configure_keys = !d0i3,
.use_rsc_tsc = false,
.tkip = &tkip_cmd,
.use_tkip = false,
@@ -876,15 +899,28 @@ int iwl_mvm_wowlan_config_key_params(struct iwl_mvm *mvm,
return -ENOMEM;
/*
- * Note that currently we don't propagate cmd_flags
- * to the iterator. In case of key_data.configure_keys,
- * all the configured commands are SYNC, and
- * iwl_mvm_wowlan_program_keys() will take care of
- * locking/unlocking mvm->mutex.
+ * if we have to configure keys, call ieee80211_iter_keys(),
+ * as we need non-atomic context in order to take the
+ * required locks.
+ * for the d0i3 we can't use ieee80211_iter_keys(), as
+ * taking (almost) any mutex might result in deadlock.
*/
- ieee80211_iter_keys(mvm->hw, vif,
- iwl_mvm_wowlan_program_keys,
- &key_data);
+ if (!d0i3) {
+ /*
+ * Note that currently we don't propagate cmd_flags
+ * to the iterator. In case of key_data.configure_keys,
+ * all the configured commands are SYNC, and
+ * iwl_mvm_wowlan_program_keys() will take care of
+ * locking/unlocking mvm->mutex.
+ */
+ ieee80211_iter_keys(mvm->hw, vif,
+ iwl_mvm_wowlan_program_keys,
+ &key_data);
+ } else {
+ iwl_mvm_iter_d0i3_ap_keys(mvm, vif,
+ iwl_mvm_wowlan_program_keys,
+ &key_data);
+ }
if (key_data.error) {
ret = -EIO;
@@ -909,7 +945,8 @@ int iwl_mvm_wowlan_config_key_params(struct iwl_mvm *mvm,
goto out;
}
- if (mvmvif->rekey_data.valid) {
+ /* configure rekey data only if offloaded rekey is supported (d3) */
+ if (mvmvif->rekey_data.valid && !d0i3) {
memset(&kek_kck_cmd, 0, sizeof(kek_kck_cmd));
memcpy(kek_kck_cmd.kck, mvmvif->rekey_data.kck,
NL80211_KCK_LEN);
@@ -956,7 +993,7 @@ iwl_mvm_wowlan_config(struct iwl_mvm *mvm,
* that isn't really a problem though.
*/
mutex_unlock(&mvm->mutex);
- ret = iwl_mvm_wowlan_config_key_params(mvm, vif, true,
+ ret = iwl_mvm_wowlan_config_key_params(mvm, vif, false,
CMD_ASYNC);
mutex_lock(&mvm->mutex);
if (ret)
@@ -1727,6 +1764,29 @@ out_unlock:
return false;
}
+void iwl_mvm_d0i3_update_keys(struct iwl_mvm *mvm,
+ struct ieee80211_vif *vif,
+ struct iwl_wowlan_status *status)
+{
+ struct iwl_mvm_d3_gtk_iter_data gtkdata = {
+ .status = status,
+ };
+
+ /*
+ * rekey handling requires taking locks that can't be taken now.
+ * however, d0i3 doesn't offload rekey, so we're fine.
+ */
+ if (WARN_ON_ONCE(status->num_of_gtk_rekeys))
+ return;
+
+ /* find last GTK that we used initially, if any */
+ gtkdata.find_phase = true;
+ iwl_mvm_iter_d0i3_ap_keys(mvm, vif, iwl_mvm_d3_update_keys, >kdata);
+
+ gtkdata.find_phase = false;
+ iwl_mvm_iter_d0i3_ap_keys(mvm, vif, iwl_mvm_d3_update_keys, >kdata);
+}
+
struct iwl_mvm_nd_query_results {
u32 matched_profiles;
struct iwl_scan_offload_profile_match matches[IWL_SCAN_MAX_PROFILES];
@@ -405,7 +405,7 @@ struct iwl_mvm_vif {
*/
struct iwl_mvm_phy_ctxt *phy_ctxt;
-#ifdef CONFIG_PM_SLEEP
+#ifdef CONFIG_PM
/* WoWLAN GTK rekey data */
struct {
u8 kck[NL80211_KCK_LEN], kek[NL80211_KEK_LEN];
@@ -738,7 +738,7 @@ struct iwl_mvm {
struct ieee80211_vif *p2p_device_vif;
-#ifdef CONFIG_PM_SLEEP
+#ifdef CONFIG_PM
struct wiphy_wowlan_support wowlan;
int gtk_ivlen, gtk_icvlen, ptk_ivlen, ptk_icvlen;
@@ -1278,10 +1278,6 @@ static inline void iwl_mvm_leds_exit(struct iwl_mvm *mvm)
/* D3 (WoWLAN, NetDetect) */
int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan);
int iwl_mvm_resume(struct ieee80211_hw *hw);
-int iwl_mvm_wowlan_config_key_params(struct iwl_mvm *mvm,
- struct ieee80211_vif *vif,
- bool configure_keys,
- u32 cmd_flags);
void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled);
void iwl_mvm_set_rekey_data(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
@@ -1292,10 +1288,31 @@ void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw,
void iwl_mvm_set_default_unicast_key(struct ieee80211_hw *hw,
struct ieee80211_vif *vif, int idx);
extern const struct file_operations iwl_dbgfs_d3_test_ops;
-#ifdef CONFIG_PM_SLEEP
+#ifdef CONFIG_PM
+int iwl_mvm_wowlan_config_key_params(struct iwl_mvm *mvm,
+ struct ieee80211_vif *vif,
+ bool host_awake,
+ u32 cmd_flags);
+void iwl_mvm_d0i3_update_keys(struct iwl_mvm *mvm,
+ struct ieee80211_vif *vif,
+ struct iwl_wowlan_status *status);
void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm *mvm,
struct ieee80211_vif *vif);
#else
+static inline int iwl_mvm_wowlan_config_key_params(struct iwl_mvm *mvm,
+ struct ieee80211_vif *vif,
+ bool host_awake,
+ u32 cmd_flags)
+{
+ return 0;
+}
+
+static inline void iwl_mvm_d0i3_update_keys(struct iwl_mvm *mvm,
+ struct ieee80211_vif *vif,
+ struct iwl_wowlan_status *status)
+{
+}
+
static inline void
iwl_mvm_set_last_nonqos_seq(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
{
@@ -1076,6 +1076,7 @@ static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode)
struct iwl_d0i3_iter_data {
struct iwl_mvm *mvm;
+ struct ieee80211_vif *connected_vif;
u8 ap_sta_id;
u8 vif_count;
u8 offloading_tid;
@@ -1167,6 +1168,12 @@ static void iwl_mvm_enter_d0i3_iterator(void *_data, u8 *mac,
*/
data->ap_sta_id = mvmvif->ap_sta_id;
data->vif_count++;
+
+ /*
+ * no new commands can be sent at this stage, so it's safe
+ * to save the vif pointer during d0i3 entrance.
+ */
+ data->connected_vif = vif;
}
static void iwl_mvm_set_wowlan_data(struct iwl_mvm *mvm,
@@ -1261,6 +1268,10 @@ int iwl_mvm_enter_d0i3(struct iwl_op_mode *op_mode)
/* configure wowlan configuration only if needed */
if (mvm->d0i3_ap_sta_id != IWL_MVM_STATION_COUNT) {
+ iwl_mvm_wowlan_config_key_params(mvm,
+ d0i3_iter_data.connected_vif,
+ true, flags);
+
iwl_mvm_set_wowlan_data(mvm, &wowlan_config_cmd,
&d0i3_iter_data);
@@ -1290,25 +1301,30 @@ static void iwl_mvm_exit_d0i3_iterator(void *_data, u8 *mac,
iwl_mvm_update_d0i3_power_mode(mvm, vif, false, flags);
}
-struct iwl_mvm_wakeup_reason_iter_data {
+struct iwl_mvm_d0i3_exit_work_iter_data {
struct iwl_mvm *mvm;
+ struct iwl_wowlan_status *status;
u32 wakeup_reasons;
};
-static void iwl_mvm_d0i3_wakeup_reason_iter(void *_data, u8 *mac,
- struct ieee80211_vif *vif)
+static void iwl_mvm_d0i3_exit_work_iter(void *_data, u8 *mac,
+ struct ieee80211_vif *vif)
{
- struct iwl_mvm_wakeup_reason_iter_data *data = _data;
+ struct iwl_mvm_d0i3_exit_work_iter_data *data = _data;
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+ u32 reasons = data->wakeup_reasons;
- if (vif->type == NL80211_IFTYPE_STATION && vif->bss_conf.assoc &&
- data->mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id) {
- if (data->wakeup_reasons &
- IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH)
- iwl_mvm_connection_loss(data->mvm, vif, "D0i3");
- else
- ieee80211_beacon_loss(vif);
- }
+ /* consider only the relevant station interface */
+ if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc ||
+ data->mvm->d0i3_ap_sta_id != mvmvif->ap_sta_id)
+ return;
+
+ if (reasons & IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH)
+ iwl_mvm_connection_loss(data->mvm, vif, "D0i3");
+ else if (reasons & IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON)
+ ieee80211_beacon_loss(vif);
+ else
+ iwl_mvm_d0i3_update_keys(data->mvm, vif, data->status);
}
void iwl_mvm_d0i3_enable_tx(struct iwl_mvm *mvm, __le16 *qos_seq)
@@ -1374,9 +1390,13 @@ static void iwl_mvm_d0i3_exit_work(struct work_struct *wk)
.id = WOWLAN_GET_STATUSES,
.flags = CMD_HIGH_PRIO | CMD_WANT_SKB,
};
+ struct iwl_mvm_d0i3_exit_work_iter_data iter_data = {
+ .mvm = mvm,
+ };
+
struct iwl_wowlan_status *status;
int ret;
- u32 handled_reasons, wakeup_reasons = 0;
+ u32 wakeup_reasons = 0;
__le16 *qos_seq = NULL;
mutex_lock(&mvm->mutex);
@@ -1393,18 +1413,12 @@ static void iwl_mvm_d0i3_exit_work(struct work_struct *wk)
IWL_DEBUG_RPM(mvm, "wakeup reasons: 0x%x\n", wakeup_reasons);
- handled_reasons = IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
- IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH;
- if (wakeup_reasons & handled_reasons) {
- struct iwl_mvm_wakeup_reason_iter_data data = {
- .mvm = mvm,
- .wakeup_reasons = wakeup_reasons,
- };
-
- ieee80211_iterate_active_interfaces(
- mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
- iwl_mvm_d0i3_wakeup_reason_iter, &data);
- }
+ iter_data.wakeup_reasons = wakeup_reasons;
+ iter_data.status = status;
+ ieee80211_iterate_active_interfaces(mvm->hw,
+ IEEE80211_IFACE_ITER_NORMAL,
+ iwl_mvm_d0i3_exit_work_iter,
+ &iter_data);
out:
iwl_mvm_d0i3_enable_tx(mvm, qos_seq);