1 files changed, 19 insertions, 7 deletions

diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index d51d9abf7986..958b2e8b90f6 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -606,6 +606,7 @@ enum rtl8152_flags {
 	PHY_RESET,
 	SCHEDULE_NAPI,
 	GREEN_ETHERNET,
+	DELL_TB_RX_AGG_BUG,
 };
 
 /* Define these values to match your device */
@@ -1798,6 +1799,9 @@ static int r8152_tx_agg_fill(struct r8152 *tp, struct tx_agg *agg)
 		dev_kfree_skb_any(skb);
 
 		remain = agg_buf_sz - (int)(tx_agg_align(tx_data) - agg->head);
+
+		if (test_bit(DELL_TB_RX_AGG_BUG, &tp->flags))
+			break;
 	}
 
 	if (!skb_queue_empty(&skb_head)) {
@@ -1844,11 +1848,9 @@ static u8 r8152_rx_csum(struct r8152 *tp, struct rx_desc *rx_desc)
 	if (opts2 & RD_IPV4_CS) {
 		if (opts3 & IPF)
 			checksum = CHECKSUM_NONE;
-		else if ((opts2 & RD_UDP_CS) && (opts3 & UDPF))
-			checksum = CHECKSUM_NONE;
-		else if ((opts2 & RD_TCP_CS) && (opts3 & TCPF))
-			checksum = CHECKSUM_NONE;
-		else
+		else if ((opts2 & RD_UDP_CS) && !(opts3 & UDPF))
+			checksum = CHECKSUM_UNNECESSARY;
+		else if ((opts2 & RD_TCP_CS) && !(opts3 & TCPF))
 			checksum = CHECKSUM_UNNECESSARY;
 	} else if (opts2 & RD_IPV6_CS) {
 		if ((opts2 & RD_UDP_CS) && !(opts3 & UDPF))
@@ -3793,11 +3795,12 @@ static void set_carrier(struct r8152 *tp)
 	if (speed & LINK_STATUS) {
 		if (!netif_carrier_ok(netdev)) {
 			tp->rtl_ops.enable(tp);
-			set_bit(RTL8152_SET_RX_MODE, &tp->flags);
 			netif_stop_queue(netdev);
 			napi_disable(napi);
 			netif_carrier_on(netdev);
 			rtl_start_rx(tp);
+			clear_bit(RTL8152_SET_RX_MODE, &tp->flags);
+			_rtl8152_set_rx_mode(netdev);
 			napi_enable(&tp->napi);
 			netif_wake_queue(netdev);
 			netif_info(tp, link, netdev, "carrier on\n");
@@ -4133,6 +4136,9 @@ static void r8153_init(struct r8152 *tp)
 	/* rx aggregation */
 	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_USB_CTRL);
 	ocp_data &= ~(RX_AGG_DISABLE | RX_ZERO_EN);
+	if (test_bit(DELL_TB_RX_AGG_BUG, &tp->flags))
+		ocp_data |= RX_AGG_DISABLE;
+
 	ocp_write_word(tp, MCU_TYPE_USB, USB_USB_CTRL, ocp_data);
 
 	rtl_tally_reset(tp);
@@ -4254,7 +4260,7 @@ static int rtl8152_post_reset(struct usb_interface *intf)
 		mutex_lock(&tp->control);
 		tp->rtl_ops.enable(tp);
 		rtl_start_rx(tp);
-		rtl8152_set_rx_mode(netdev);
+		_rtl8152_set_rx_mode(netdev);
 		mutex_unlock(&tp->control);
 	}
 
@@ -5207,6 +5213,12 @@ static int rtl8152_probe(struct usb_interface *intf,
 		netdev->hw_features &= ~NETIF_F_RXCSUM;
 	}
 
+	if (le16_to_cpu(udev->descriptor.bcdDevice) == 0x3011 &&
+	    udev->serial && !strcmp(udev->serial, "000001000000")) {
+		dev_info(&udev->dev, "Dell TB16 Dock, disable RX aggregation");
+		set_bit(DELL_TB_RX_AGG_BUG, &tp->flags);
+	}
+
 	netdev->ethtool_ops = &ops;
 	netif_set_gso_max_size(netdev, RTL_LIMITED_TSO_SIZE);