Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Cross-merge networking fixes after downstream PR.

No conflicts.

Signed-off-by: Paolo Abeni <pabeni@redhat.com>

5 files changed, 40 insertions, 20 deletions

diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index 31f664ee4d77..b940dcd3ace6 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -756,8 +756,6 @@ static void macb_mac_link_up(struct phylink_config *config,
 		if (rx_pause)
 			ctrl |= MACB_BIT(PAE);
 
-		macb_set_tx_clk(bp, speed);
-
 		/* Initialize rings & buffers as clearing MACB_BIT(TE) in link down
 		 * cleared the pipeline and control registers.
 		 */
@@ -777,6 +775,9 @@ static void macb_mac_link_up(struct phylink_config *config,
 
 	spin_unlock_irqrestore(&bp->lock, flags);
 
+	if (!(bp->caps & MACB_CAPS_MACB_IS_EMAC))
+		macb_set_tx_clk(bp, speed);
+
 	/* Enable Rx and Tx; Enable PTP unicast */
 	ctrl = macb_readl(bp, NCR);
 	if (gem_has_ptp(bp))
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index 13ba9c74bd84..76b34cee1da3 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -3827,8 +3827,11 @@ static int igb_enable_sriov(struct pci_dev *pdev, int num_vfs, bool reinit)
 	}
 
 	/* only call pci_enable_sriov() if no VFs are allocated already */
-	if (!old_vfs)
+	if (!old_vfs) {
 		err = pci_enable_sriov(pdev, adapter->vfs_allocated_count);
+		if (err)
+			goto err_out;
+	}
 
 	goto out;
 
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
index 0310af851086..9339edbd9082 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
@@ -979,6 +979,7 @@ static int ixgbe_ptp_set_timestamp_mode(struct ixgbe_adapter *adapter,
 	u32 tsync_tx_ctl = IXGBE_TSYNCTXCTL_ENABLED;
 	u32 tsync_rx_ctl = IXGBE_TSYNCRXCTL_ENABLED;
 	u32 tsync_rx_mtrl = PTP_EV_PORT << 16;
+	u32 aflags = adapter->flags;
 	bool is_l2 = false;
 	u32 regval;
 
@@ -996,20 +997,20 @@ static int ixgbe_ptp_set_timestamp_mode(struct ixgbe_adapter *adapter,
 	case HWTSTAMP_FILTER_NONE:
 		tsync_rx_ctl = 0;
 		tsync_rx_mtrl = 0;
-		adapter->flags &= ~(IXGBE_FLAG_RX_HWTSTAMP_ENABLED |
-				    IXGBE_FLAG_RX_HWTSTAMP_IN_REGISTER);
+		aflags &= ~(IXGBE_FLAG_RX_HWTSTAMP_ENABLED |
+			    IXGBE_FLAG_RX_HWTSTAMP_IN_REGISTER);
 		break;
 	case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
 		tsync_rx_ctl |= IXGBE_TSYNCRXCTL_TYPE_L4_V1;
 		tsync_rx_mtrl |= IXGBE_RXMTRL_V1_SYNC_MSG;
-		adapter->flags |= (IXGBE_FLAG_RX_HWTSTAMP_ENABLED |
-				   IXGBE_FLAG_RX_HWTSTAMP_IN_REGISTER);
+		aflags |= (IXGBE_FLAG_RX_HWTSTAMP_ENABLED |
+			   IXGBE_FLAG_RX_HWTSTAMP_IN_REGISTER);
 		break;
 	case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
 		tsync_rx_ctl |= IXGBE_TSYNCRXCTL_TYPE_L4_V1;
 		tsync_rx_mtrl |= IXGBE_RXMTRL_V1_DELAY_REQ_MSG;
-		adapter->flags |= (IXGBE_FLAG_RX_HWTSTAMP_ENABLED |
-				   IXGBE_FLAG_RX_HWTSTAMP_IN_REGISTER);
+		aflags |= (IXGBE_FLAG_RX_HWTSTAMP_ENABLED |
+			   IXGBE_FLAG_RX_HWTSTAMP_IN_REGISTER);
 		break;
 	case HWTSTAMP_FILTER_PTP_V2_EVENT:
 	case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
@@ -1023,8 +1024,8 @@ static int ixgbe_ptp_set_timestamp_mode(struct ixgbe_adapter *adapter,
 		tsync_rx_ctl |= IXGBE_TSYNCRXCTL_TYPE_EVENT_V2;
 		is_l2 = true;
 		config->rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT;
-		adapter->flags |= (IXGBE_FLAG_RX_HWTSTAMP_ENABLED |
-				   IXGBE_FLAG_RX_HWTSTAMP_IN_REGISTER);
+		aflags |= (IXGBE_FLAG_RX_HWTSTAMP_ENABLED |
+			   IXGBE_FLAG_RX_HWTSTAMP_IN_REGISTER);
 		break;
 	case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
 	case HWTSTAMP_FILTER_NTP_ALL:
@@ -1035,7 +1036,7 @@ static int ixgbe_ptp_set_timestamp_mode(struct ixgbe_adapter *adapter,
 		if (hw->mac.type >= ixgbe_mac_X550) {
 			tsync_rx_ctl |= IXGBE_TSYNCRXCTL_TYPE_ALL;
 			config->rx_filter = HWTSTAMP_FILTER_ALL;
-			adapter->flags |= IXGBE_FLAG_RX_HWTSTAMP_ENABLED;
+			aflags |= IXGBE_FLAG_RX_HWTSTAMP_ENABLED;
 			break;
 		}
 		fallthrough;
@@ -1046,8 +1047,6 @@ static int ixgbe_ptp_set_timestamp_mode(struct ixgbe_adapter *adapter,
 		 * Delay_Req messages and hardware does not support
 		 * timestamping all packets => return error
 		 */
-		adapter->flags &= ~(IXGBE_FLAG_RX_HWTSTAMP_ENABLED |
-				    IXGBE_FLAG_RX_HWTSTAMP_IN_REGISTER);
 		config->rx_filter = HWTSTAMP_FILTER_NONE;
 		return -ERANGE;
 	}
@@ -1079,8 +1078,8 @@ static int ixgbe_ptp_set_timestamp_mode(struct ixgbe_adapter *adapter,
 			       IXGBE_TSYNCRXCTL_TYPE_ALL |
 			       IXGBE_TSYNCRXCTL_TSIP_UT_EN;
 		config->rx_filter = HWTSTAMP_FILTER_ALL;
-		adapter->flags |= IXGBE_FLAG_RX_HWTSTAMP_ENABLED;
-		adapter->flags &= ~IXGBE_FLAG_RX_HWTSTAMP_IN_REGISTER;
+		aflags |= IXGBE_FLAG_RX_HWTSTAMP_ENABLED;
+		aflags &= ~IXGBE_FLAG_RX_HWTSTAMP_IN_REGISTER;
 		is_l2 = true;
 		break;
 	default:
@@ -1113,6 +1112,9 @@ static int ixgbe_ptp_set_timestamp_mode(struct ixgbe_adapter *adapter,
 
 	IXGBE_WRITE_FLUSH(hw);
 
+	/* configure adapter flags only when HW is actually configured */
+	adapter->flags = aflags;
+
 	/* clear TX/RX time stamp registers, just to be sure */
 	ixgbe_ptp_clear_tx_timestamp(adapter);
 	IXGBE_READ_REG(hw, IXGBE_RXSTMPH);
diff --git a/drivers/net/ethernet/renesas/rswitch.c b/drivers/net/ethernet/renesas/rswitch.c
index 6083b1c8e4fb..ea9186178091 100644
--- a/drivers/net/ethernet/renesas/rswitch.c
+++ b/drivers/net/ethernet/renesas/rswitch.c
@@ -799,6 +799,7 @@ static int rswitch_poll(struct napi_struct *napi, int budget)
 	struct net_device *ndev = napi->dev;
 	struct rswitch_private *priv;
 	struct rswitch_device *rdev;
+	unsigned long flags;
 	int quota = budget;
 
 	rdev = netdev_priv(ndev);
@@ -816,10 +817,12 @@ retry:
 
 	netif_wake_subqueue(ndev, 0);
 
-	napi_complete(napi);
-
-	rswitch_enadis_data_irq(priv, rdev->tx_queue->index, true);
-	rswitch_enadis_data_irq(priv, rdev->rx_queue->index, true);
+	if (napi_complete_done(napi, budget - quota)) {
+		spin_lock_irqsave(&priv->lock, flags);
+		rswitch_enadis_data_irq(priv, rdev->tx_queue->index, true);
+		rswitch_enadis_data_irq(priv, rdev->rx_queue->index, true);
+		spin_unlock_irqrestore(&priv->lock, flags);
+	}
 
 out:
 	return budget - quota;
@@ -835,8 +838,10 @@ static void rswitch_queue_interrupt(struct net_device *ndev)
 	struct rswitch_device *rdev = netdev_priv(ndev);
 
 	if (napi_schedule_prep(&rdev->napi)) {
+		spin_lock(&rdev->priv->lock);
 		rswitch_enadis_data_irq(rdev->priv, rdev->tx_queue->index, false);
 		rswitch_enadis_data_irq(rdev->priv, rdev->rx_queue->index, false);
+		spin_unlock(&rdev->priv->lock);
 		__napi_schedule(&rdev->napi);
 	}
 }
@@ -1440,14 +1445,17 @@ static void rswitch_ether_port_deinit_all(struct rswitch_private *priv)
 static int rswitch_open(struct net_device *ndev)
 {
 	struct rswitch_device *rdev = netdev_priv(ndev);
+	unsigned long flags;
 
 	phy_start(ndev->phydev);
 
 	napi_enable(&rdev->napi);
 	netif_start_queue(ndev);
 
+	spin_lock_irqsave(&rdev->priv->lock, flags);
 	rswitch_enadis_data_irq(rdev->priv, rdev->tx_queue->index, true);
 	rswitch_enadis_data_irq(rdev->priv, rdev->rx_queue->index, true);
+	spin_unlock_irqrestore(&rdev->priv->lock, flags);
 
 	if (bitmap_empty(rdev->priv->opened_ports, RSWITCH_NUM_PORTS))
 		iowrite32(GWCA_TS_IRQ_BIT, rdev->priv->addr + GWTSDIE);
@@ -1461,6 +1469,7 @@ static int rswitch_stop(struct net_device *ndev)
 {
 	struct rswitch_device *rdev = netdev_priv(ndev);
 	struct rswitch_gwca_ts_info *ts_info, *ts_info2;
+	unsigned long flags;
 
 	netif_tx_stop_all_queues(ndev);
 	bitmap_clear(rdev->priv->opened_ports, rdev->port, 1);
@@ -1476,8 +1485,10 @@ static int rswitch_stop(struct net_device *ndev)
 		kfree(ts_info);
 	}
 
+	spin_lock_irqsave(&rdev->priv->lock, flags);
 	rswitch_enadis_data_irq(rdev->priv, rdev->tx_queue->index, false);
 	rswitch_enadis_data_irq(rdev->priv, rdev->rx_queue->index, false);
+	spin_unlock_irqrestore(&rdev->priv->lock, flags);
 
 	phy_stop(ndev->phydev);
 	napi_disable(&rdev->napi);
@@ -1887,6 +1898,7 @@ static int renesas_eth_sw_probe(struct platform_device *pdev)
 	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
 	if (!priv)
 		return -ENOMEM;
+	spin_lock_init(&priv->lock);
 
 	attr = soc_device_match(rswitch_soc_no_speed_change);
 	if (attr)
diff --git a/drivers/net/ethernet/renesas/rswitch.h b/drivers/net/ethernet/renesas/rswitch.h
index 54f397effbc6..f0c16a37ea55 100644
--- a/drivers/net/ethernet/renesas/rswitch.h
+++ b/drivers/net/ethernet/renesas/rswitch.h
@@ -1011,6 +1011,8 @@ struct rswitch_private {
 	struct rswitch_etha etha[RSWITCH_NUM_PORTS];
 	struct rswitch_mfwd mfwd;
 
+	spinlock_t lock;	/* lock interrupt registers' control */
+
 	bool etha_no_runtime_change;
 	bool gwca_halt;
 };