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path: root/drivers/net/wireless/iwlwifi/mvm/time-event.c
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Diffstat (limited to 'drivers/net/wireless/iwlwifi/mvm/time-event.c')
-rw-r--r--drivers/net/wireless/iwlwifi/mvm/time-event.c146
1 files changed, 117 insertions, 29 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/time-event.c b/drivers/net/wireless/iwlwifi/mvm/time-event.c
index 6dfad230be5e..54fafbf9a711 100644
--- a/drivers/net/wireless/iwlwifi/mvm/time-event.c
+++ b/drivers/net/wireless/iwlwifi/mvm/time-event.c
@@ -191,6 +191,35 @@ static bool iwl_mvm_te_check_disconnect(struct iwl_mvm *mvm,
return true;
}
+static void
+iwl_mvm_te_handle_notify_csa(struct iwl_mvm *mvm,
+ struct iwl_mvm_time_event_data *te_data,
+ struct iwl_time_event_notif *notif)
+{
+ if (!le32_to_cpu(notif->status)) {
+ IWL_DEBUG_TE(mvm, "CSA time event failed to start\n");
+ iwl_mvm_te_clear_data(mvm, te_data);
+ return;
+ }
+
+ switch (te_data->vif->type) {
+ case NL80211_IFTYPE_AP:
+ iwl_mvm_csa_noa_start(mvm);
+ break;
+ case NL80211_IFTYPE_STATION:
+ iwl_mvm_csa_client_absent(mvm, te_data->vif);
+ ieee80211_chswitch_done(te_data->vif, true);
+ break;
+ default:
+ /* should never happen */
+ WARN_ON_ONCE(1);
+ break;
+ }
+
+ /* we don't need it anymore */
+ iwl_mvm_te_clear_data(mvm, te_data);
+}
+
/*
* Handles a FW notification for an event that is known to the driver.
*
@@ -252,14 +281,8 @@ static void iwl_mvm_te_handle_notif(struct iwl_mvm *mvm,
set_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status);
iwl_mvm_ref(mvm, IWL_MVM_REF_ROC);
ieee80211_ready_on_channel(mvm->hw);
- } else if (te_data->vif->type == NL80211_IFTYPE_AP) {
- if (le32_to_cpu(notif->status))
- iwl_mvm_csa_noa_start(mvm);
- else
- IWL_DEBUG_TE(mvm, "CSA NOA failed to start\n");
-
- /* we don't need it anymore */
- iwl_mvm_te_clear_data(mvm, te_data);
+ } else if (te_data->id == TE_CHANNEL_SWITCH_PERIOD) {
+ iwl_mvm_te_handle_notify_csa(mvm, te_data, notif);
}
} else {
IWL_WARN(mvm, "Got TE with unknown action\n");
@@ -549,18 +572,11 @@ void iwl_mvm_protect_session(struct iwl_mvm *mvm,
}
}
-/*
- * Explicit request to remove a time event. The removal of a time event needs to
- * be synchronized with the flow of a time event's end notification, which also
- * removes the time event from the op mode data structures.
- */
-void iwl_mvm_remove_time_event(struct iwl_mvm *mvm,
- struct iwl_mvm_vif *mvmvif,
- struct iwl_mvm_time_event_data *te_data)
+static bool __iwl_mvm_remove_time_event(struct iwl_mvm *mvm,
+ struct iwl_mvm_time_event_data *te_data,
+ u32 *uid)
{
- struct iwl_time_event_cmd time_cmd = {};
- u32 id, uid;
- int ret;
+ u32 id;
/*
* It is possible that by the time we got to this point the time
@@ -569,7 +585,7 @@ void iwl_mvm_remove_time_event(struct iwl_mvm *mvm,
spin_lock_bh(&mvm->time_event_lock);
/* Save time event uid before clearing its data */
- uid = te_data->uid;
+ *uid = te_data->uid;
id = te_data->id;
/*
@@ -584,10 +600,59 @@ void iwl_mvm_remove_time_event(struct iwl_mvm *mvm,
* send a removal command.
*/
if (id == TE_MAX) {
- IWL_DEBUG_TE(mvm, "TE 0x%x has already ended\n", uid);
- return;
+ IWL_DEBUG_TE(mvm, "TE 0x%x has already ended\n", *uid);
+ return false;
}
+ return true;
+}
+
+/*
+ * Explicit request to remove a aux roc time event. The removal of a time
+ * event needs to be synchronized with the flow of a time event's end
+ * notification, which also removes the time event from the op mode
+ * data structures.
+ */
+static void iwl_mvm_remove_aux_roc_te(struct iwl_mvm *mvm,
+ struct iwl_mvm_vif *mvmvif,
+ struct iwl_mvm_time_event_data *te_data)
+{
+ struct iwl_hs20_roc_req aux_cmd = {};
+ u32 uid;
+ int ret;
+
+ if (!__iwl_mvm_remove_time_event(mvm, te_data, &uid))
+ return;
+
+ aux_cmd.event_unique_id = cpu_to_le32(uid);
+ aux_cmd.action = cpu_to_le32(FW_CTXT_ACTION_REMOVE);
+ aux_cmd.id_and_color =
+ cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color));
+ IWL_DEBUG_TE(mvm, "Removing BSS AUX ROC TE 0x%x\n",
+ le32_to_cpu(aux_cmd.event_unique_id));
+ ret = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0,
+ sizeof(aux_cmd), &aux_cmd);
+
+ if (WARN_ON(ret))
+ return;
+}
+
+/*
+ * Explicit request to remove a time event. The removal of a time event needs to
+ * be synchronized with the flow of a time event's end notification, which also
+ * removes the time event from the op mode data structures.
+ */
+void iwl_mvm_remove_time_event(struct iwl_mvm *mvm,
+ struct iwl_mvm_vif *mvmvif,
+ struct iwl_mvm_time_event_data *te_data)
+{
+ struct iwl_time_event_cmd time_cmd = {};
+ u32 uid;
+ int ret;
+
+ if (!__iwl_mvm_remove_time_event(mvm, te_data, &uid))
+ return;
+
/* When we remove a TE, the UID is to be set in the id field */
time_cmd.id = cpu_to_le32(uid);
time_cmd.action = cpu_to_le32(FW_CTXT_ACTION_REMOVE);
@@ -666,13 +731,17 @@ int iwl_mvm_start_p2p_roc(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
return iwl_mvm_time_event_send_add(mvm, vif, te_data, &time_cmd);
}
-void iwl_mvm_stop_p2p_roc(struct iwl_mvm *mvm)
+void iwl_mvm_stop_roc(struct iwl_mvm *mvm)
{
struct iwl_mvm_vif *mvmvif;
struct iwl_mvm_time_event_data *te_data;
+ bool is_p2p = false;
lockdep_assert_held(&mvm->mutex);
+ mvmvif = NULL;
+ spin_lock_bh(&mvm->time_event_lock);
+
/*
* Iterate over the list of time events and find the time event that is
* associated with a P2P_DEVICE interface.
@@ -680,22 +749,41 @@ void iwl_mvm_stop_p2p_roc(struct iwl_mvm *mvm)
* event at any given time and this time event coresponds to a ROC
* request
*/
- mvmvif = NULL;
- spin_lock_bh(&mvm->time_event_lock);
list_for_each_entry(te_data, &mvm->time_event_list, list) {
- if (te_data->vif->type == NL80211_IFTYPE_P2P_DEVICE) {
+ if (te_data->vif->type == NL80211_IFTYPE_P2P_DEVICE &&
+ te_data->running) {
mvmvif = iwl_mvm_vif_from_mac80211(te_data->vif);
- break;
+ is_p2p = true;
+ goto remove_te;
}
}
+
+ /*
+ * Iterate over the list of aux roc time events and find the time
+ * event that is associated with a BSS interface.
+ * This assumes that a BSS interface can have only a single time
+ * event at any given time and this time event coresponds to a ROC
+ * request
+ */
+ list_for_each_entry(te_data, &mvm->aux_roc_te_list, list) {
+ if (te_data->running) {
+ mvmvif = iwl_mvm_vif_from_mac80211(te_data->vif);
+ goto remove_te;
+ }
+ }
+
+remove_te:
spin_unlock_bh(&mvm->time_event_lock);
if (!mvmvif) {
- IWL_WARN(mvm, "P2P_DEVICE no remain on channel event\n");
+ IWL_WARN(mvm, "No remain on channel event\n");
return;
}
- iwl_mvm_remove_time_event(mvm, mvmvif, te_data);
+ if (is_p2p)
+ iwl_mvm_remove_time_event(mvm, mvmvif, te_data);
+ else
+ iwl_mvm_remove_aux_roc_te(mvm, mvmvif, te_data);
iwl_mvm_roc_finished(mvm);
}