1 files changed, 45 insertions, 14 deletions

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index baf7404c137d..607d5d564928 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -1099,6 +1099,8 @@ int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
 	iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC,
 			       NULL);
 
+	mvm->last_reset_or_resume_time_jiffies = jiffies;
+
 	if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
 		/* Something went wrong - we need to finish some cleanup
 		 * that normally iwl_mvm_mac_restart_complete() below
@@ -4610,6 +4612,16 @@ static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
 
 		break;
 	case NL80211_IFTYPE_STATION:
+		/*
+		 * We haven't configured the firmware to be associated yet since
+		 * we don't know the dtim period. In this case, the firmware can't
+		 * track the beacons.
+		 */
+		if (!vif->bss_conf.assoc || !vif->bss_conf.dtim_period) {
+			ret = -EBUSY;
+			goto out_unlock;
+		}
+
 		if (chsw->delay > IWL_MAX_CSA_BLOCK_TX)
 			schedule_delayed_work(&mvmvif->csa_work, 0);
 
@@ -5134,28 +5146,50 @@ static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
 }
 
 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm,
-				     struct iwl_mvm_internal_rxq_notif *notif,
-				     u32 size)
+				     enum iwl_mvm_rxq_notif_type type,
+				     bool sync,
+				     const void *data, u32 size)
 {
-	u32 qmask = BIT(mvm->trans->num_rx_queues) - 1;
+	struct {
+		struct iwl_rxq_sync_cmd cmd;
+		struct iwl_mvm_internal_rxq_notif notif;
+	} __packed cmd = {
+		.cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1),
+		.cmd.count =
+			cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) +
+				    size),
+		.notif.type = type,
+		.notif.sync = sync,
+	};
+	struct iwl_host_cmd hcmd = {
+		.id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD),
+		.data[0] = &cmd,
+		.len[0] = sizeof(cmd),
+		.data[1] = data,
+		.len[1] = size,
+		.flags = sync ? 0 : CMD_ASYNC,
+	};
 	int ret;
 
+	/* size must be a multiple of DWORD */
+	if (WARN_ON(cmd.cmd.count & cpu_to_le32(3)))
+		return;
 
 	if (!iwl_mvm_has_new_rx_api(mvm))
 		return;
 
-	if (notif->sync) {
-		notif->cookie = mvm->queue_sync_cookie;
+	if (sync) {
+		cmd.notif.cookie = mvm->queue_sync_cookie;
 		mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1;
 	}
 
-	ret = iwl_mvm_notify_rx_queue(mvm, qmask, notif, size, !notif->sync);
+	ret = iwl_mvm_send_cmd(mvm, &hcmd);
 	if (ret) {
 		IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret);
 		goto out;
 	}
 
-	if (notif->sync) {
+	if (sync) {
 		lockdep_assert_held(&mvm->mutex);
 		ret = wait_event_timeout(mvm->rx_sync_waitq,
 					 READ_ONCE(mvm->queue_sync_state) == 0 ||
@@ -5167,21 +5201,18 @@ void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm,
 	}
 
 out:
-	mvm->queue_sync_state = 0;
-	if (notif->sync)
+	if (sync) {
+		mvm->queue_sync_state = 0;
 		mvm->queue_sync_cookie++;
+	}
 }
 
 static void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw)
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
-	struct iwl_mvm_internal_rxq_notif data = {
-		.type = IWL_MVM_RXQ_EMPTY,
-		.sync = 1,
-	};
 
 	mutex_lock(&mvm->mutex);
-	iwl_mvm_sync_rx_queues_internal(mvm, &data, sizeof(data));
+	iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0);
 	mutex_unlock(&mvm->mutex);
 }