Add cs42l43 PC focused SoundWire CODEC

Merge series from Charles Keepax <ckeepax@opensource.cirrus.com>:

This patch chain adds support for the Cirrus Logic cs42l43 PC focused
SoundWire CODEC.

5 files changed, 66 insertions, 6 deletions

diff --git a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
index 2f47cfa7f06e..460ca561819a 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
@@ -1401,14 +1401,15 @@ static int iavf_add_fdir_ethtool(struct iavf_adapter *adapter, struct ethtool_rx
 	if (fsp->flow_type & FLOW_MAC_EXT)
 		return -EINVAL;
 
+	spin_lock_bh(&adapter->fdir_fltr_lock);
 	if (adapter->fdir_active_fltr >= IAVF_MAX_FDIR_FILTERS) {
+		spin_unlock_bh(&adapter->fdir_fltr_lock);
 		dev_err(&adapter->pdev->dev,
 			"Unable to add Flow Director filter because VF reached the limit of max allowed filters (%u)\n",
 			IAVF_MAX_FDIR_FILTERS);
 		return -ENOSPC;
 	}
 
-	spin_lock_bh(&adapter->fdir_fltr_lock);
 	if (iavf_find_fdir_fltr_by_loc(adapter, fsp->location)) {
 		dev_err(&adapter->pdev->dev, "Failed to add Flow Director filter, it already exists\n");
 		spin_unlock_bh(&adapter->fdir_fltr_lock);
@@ -1781,7 +1782,9 @@ static int iavf_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
 	case ETHTOOL_GRXCLSRLCNT:
 		if (!FDIR_FLTR_SUPPORT(adapter))
 			break;
+		spin_lock_bh(&adapter->fdir_fltr_lock);
 		cmd->rule_cnt = adapter->fdir_active_fltr;
+		spin_unlock_bh(&adapter->fdir_fltr_lock);
 		cmd->data = IAVF_MAX_FDIR_FILTERS;
 		ret = 0;
 		break;
diff --git a/drivers/net/ethernet/intel/iavf/iavf_fdir.c b/drivers/net/ethernet/intel/iavf/iavf_fdir.c
index 6146203efd84..505e82ebafe4 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_fdir.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_fdir.c
@@ -722,7 +722,9 @@ void iavf_print_fdir_fltr(struct iavf_adapter *adapter, struct iavf_fdir_fltr *f
 bool iavf_fdir_is_dup_fltr(struct iavf_adapter *adapter, struct iavf_fdir_fltr *fltr)
 {
 	struct iavf_fdir_fltr *tmp;
+	bool ret = false;
 
+	spin_lock_bh(&adapter->fdir_fltr_lock);
 	list_for_each_entry(tmp, &adapter->fdir_list_head, list) {
 		if (tmp->flow_type != fltr->flow_type)
 			continue;
@@ -732,11 +734,14 @@ bool iavf_fdir_is_dup_fltr(struct iavf_adapter *adapter, struct iavf_fdir_fltr *
 		    !memcmp(&tmp->ip_data, &fltr->ip_data,
 			    sizeof(fltr->ip_data)) &&
 		    !memcmp(&tmp->ext_data, &fltr->ext_data,
-			    sizeof(fltr->ext_data)))
-			return true;
+			    sizeof(fltr->ext_data))) {
+			ret = true;
+			break;
+		}
 	}
+	spin_unlock_bh(&adapter->fdir_fltr_lock);
 
-	return false;
+	return ret;
 }
 
 /**
diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index f02d44455772..cf92c39467c8 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -8813,6 +8813,7 @@ ice_setup_tc(struct net_device *netdev, enum tc_setup_type type,
 {
 	struct ice_netdev_priv *np = netdev_priv(netdev);
 	struct ice_pf *pf = np->vsi->back;
+	bool locked = false;
 	int err;
 
 	switch (type) {
@@ -8822,10 +8823,27 @@ ice_setup_tc(struct net_device *netdev, enum tc_setup_type type,
 						  ice_setup_tc_block_cb,
 						  np, np, true);
 	case TC_SETUP_QDISC_MQPRIO:
+		if (pf->adev) {
+			mutex_lock(&pf->adev_mutex);
+			device_lock(&pf->adev->dev);
+			locked = true;
+			if (pf->adev->dev.driver) {
+				netdev_err(netdev, "Cannot change qdisc when RDMA is active\n");
+				err = -EBUSY;
+				goto adev_unlock;
+			}
+		}
+
 		/* setup traffic classifier for receive side */
 		mutex_lock(&pf->tc_mutex);
 		err = ice_setup_tc_mqprio_qdisc(netdev, type_data);
 		mutex_unlock(&pf->tc_mutex);
+
+adev_unlock:
+		if (locked) {
+			device_unlock(&pf->adev->dev);
+			mutex_unlock(&pf->adev_mutex);
+		}
 		return err;
 	default:
 		return -EOPNOTSUPP;
diff --git a/drivers/net/ethernet/intel/igc/igc.h b/drivers/net/ethernet/intel/igc/igc.h
index 9db384f66a8e..38901d2a4680 100644
--- a/drivers/net/ethernet/intel/igc/igc.h
+++ b/drivers/net/ethernet/intel/igc/igc.h
@@ -195,6 +195,10 @@ struct igc_adapter {
 	u32 qbv_config_change_errors;
 	bool qbv_transition;
 	unsigned int qbv_count;
+	/* Access to oper_gate_closed, admin_gate_closed and qbv_transition
+	 * are protected by the qbv_tx_lock.
+	 */
+	spinlock_t qbv_tx_lock;
 
 	/* OS defined structs */
 	struct pci_dev *pdev;
diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c
index bdeb36790d77..6f557e843e49 100644
--- a/drivers/net/ethernet/intel/igc/igc_main.c
+++ b/drivers/net/ethernet/intel/igc/igc_main.c
@@ -4801,6 +4801,7 @@ static int igc_sw_init(struct igc_adapter *adapter)
 	adapter->nfc_rule_count = 0;
 
 	spin_lock_init(&adapter->stats64_lock);
+	spin_lock_init(&adapter->qbv_tx_lock);
 	/* Assume MSI-X interrupts, will be checked during IRQ allocation */
 	adapter->flags |= IGC_FLAG_HAS_MSIX;
 
@@ -6119,15 +6120,15 @@ static int igc_tsn_enable_launchtime(struct igc_adapter *adapter,
 	return igc_tsn_offload_apply(adapter);
 }
 
-static int igc_tsn_clear_schedule(struct igc_adapter *adapter)
+static int igc_qbv_clear_schedule(struct igc_adapter *adapter)
 {
+	unsigned long flags;
 	int i;
 
 	adapter->base_time = 0;
 	adapter->cycle_time = NSEC_PER_SEC;
 	adapter->taprio_offload_enable = false;
 	adapter->qbv_config_change_errors = 0;
-	adapter->qbv_transition = false;
 	adapter->qbv_count = 0;
 
 	for (i = 0; i < adapter->num_tx_queues; i++) {
@@ -6136,10 +6137,28 @@ static int igc_tsn_clear_schedule(struct igc_adapter *adapter)
 		ring->start_time = 0;
 		ring->end_time = NSEC_PER_SEC;
 		ring->max_sdu = 0;
+	}
+
+	spin_lock_irqsave(&adapter->qbv_tx_lock, flags);
+
+	adapter->qbv_transition = false;
+
+	for (i = 0; i < adapter->num_tx_queues; i++) {
+		struct igc_ring *ring = adapter->tx_ring[i];
+
 		ring->oper_gate_closed = false;
 		ring->admin_gate_closed = false;
 	}
 
+	spin_unlock_irqrestore(&adapter->qbv_tx_lock, flags);
+
+	return 0;
+}
+
+static int igc_tsn_clear_schedule(struct igc_adapter *adapter)
+{
+	igc_qbv_clear_schedule(adapter);
+
 	return 0;
 }
 
@@ -6150,6 +6169,7 @@ static int igc_save_qbv_schedule(struct igc_adapter *adapter,
 	struct igc_hw *hw = &adapter->hw;
 	u32 start_time = 0, end_time = 0;
 	struct timespec64 now;
+	unsigned long flags;
 	size_t n;
 	int i;
 
@@ -6217,6 +6237,8 @@ static int igc_save_qbv_schedule(struct igc_adapter *adapter,
 		start_time += e->interval;
 	}
 
+	spin_lock_irqsave(&adapter->qbv_tx_lock, flags);
+
 	/* Check whether a queue gets configured.
 	 * If not, set the start and end time to be end time.
 	 */
@@ -6241,6 +6263,8 @@ static int igc_save_qbv_schedule(struct igc_adapter *adapter,
 		}
 	}
 
+	spin_unlock_irqrestore(&adapter->qbv_tx_lock, flags);
+
 	for (i = 0; i < adapter->num_tx_queues; i++) {
 		struct igc_ring *ring = adapter->tx_ring[i];
 		struct net_device *dev = adapter->netdev;
@@ -6619,8 +6643,11 @@ static enum hrtimer_restart igc_qbv_scheduling_timer(struct hrtimer *timer)
 {
 	struct igc_adapter *adapter = container_of(timer, struct igc_adapter,
 						   hrtimer);
+	unsigned long flags;
 	unsigned int i;
 
+	spin_lock_irqsave(&adapter->qbv_tx_lock, flags);
+
 	adapter->qbv_transition = true;
 	for (i = 0; i < adapter->num_tx_queues; i++) {
 		struct igc_ring *tx_ring = adapter->tx_ring[i];
@@ -6633,6 +6660,9 @@ static enum hrtimer_restart igc_qbv_scheduling_timer(struct hrtimer *timer)
 		}
 	}
 	adapter->qbv_transition = false;
+
+	spin_unlock_irqrestore(&adapter->qbv_tx_lock, flags);
+
 	return HRTIMER_NORESTART;
 }