1 files changed, 134 insertions, 73 deletions

diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 986243c932cc..ddc62cb69be8 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -32,7 +32,7 @@
 #define NETNEXT_VERSION		"08"
 
 /* Information for net */
-#define NET_VERSION		"8"
+#define NET_VERSION		"9"
 
 #define DRIVER_VERSION		"v1." NETNEXT_VERSION "." NET_VERSION
 #define DRIVER_AUTHOR "Realtek linux nic maintainers <nic_swsd@realtek.com>"
@@ -501,6 +501,8 @@ enum rtl_register_content {
 #define RTL8153_RMS		RTL8153_MAX_PACKET
 #define RTL8152_TX_TIMEOUT	(5 * HZ)
 #define RTL8152_NAPI_WEIGHT	64
+#define rx_reserved_size(x)	((x) + VLAN_ETH_HLEN + CRC_SIZE + \
+				 sizeof(struct rx_desc) + RX_ALIGN)
 
 /* rtl8152 flags */
 enum rtl8152_flags {
@@ -515,6 +517,7 @@ enum rtl8152_flags {
 
 /* Define these values to match your device */
 #define VENDOR_ID_REALTEK		0x0bda
+#define VENDOR_ID_MICROSOFT		0x045e
 #define VENDOR_ID_SAMSUNG		0x04e8
 #define VENDOR_ID_LENOVO		0x17ef
 #define VENDOR_ID_NVIDIA		0x0955
@@ -1292,6 +1295,7 @@ static void intr_callback(struct urb *urb)
 		}
 	} else {
 		if (netif_carrier_ok(tp->netdev)) {
+			netif_stop_queue(tp->netdev);
 			set_bit(RTL8152_LINK_CHG, &tp->flags);
 			schedule_delayed_work(&tp->schedule, 0);
 		}
@@ -1362,6 +1366,7 @@ static int alloc_all_mem(struct r8152 *tp)
 	spin_lock_init(&tp->rx_lock);
 	spin_lock_init(&tp->tx_lock);
 	INIT_LIST_HEAD(&tp->tx_free);
+	INIT_LIST_HEAD(&tp->rx_done);
 	skb_queue_head_init(&tp->tx_queue);
 	skb_queue_head_init(&tp->rx_queue);
 
@@ -1761,6 +1766,7 @@ static int rx_bottom(struct r8152 *tp, int budget)
 	unsigned long flags;
 	struct list_head *cursor, *next, rx_queue;
 	int ret = 0, work_done = 0;
+	struct napi_struct *napi = &tp->napi;
 
 	if (!skb_queue_empty(&tp->rx_queue)) {
 		while (work_done < budget) {
@@ -1773,7 +1779,7 @@ static int rx_bottom(struct r8152 *tp, int budget)
 				break;
 
 			pkt_len = skb->len;
-			napi_gro_receive(&tp->napi, skb);
+			napi_gro_receive(napi, skb);
 			work_done++;
 			stats->rx_packets++;
 			stats->rx_bytes += pkt_len;
@@ -1823,7 +1829,7 @@ static int rx_bottom(struct r8152 *tp, int budget)
 			pkt_len -= CRC_SIZE;
 			rx_data += sizeof(struct rx_desc);
 
-			skb = napi_alloc_skb(&tp->napi, pkt_len);
+			skb = napi_alloc_skb(napi, pkt_len);
 			if (!skb) {
 				stats->rx_dropped++;
 				goto find_next_rx;
@@ -1835,7 +1841,7 @@ static int rx_bottom(struct r8152 *tp, int budget)
 			skb->protocol = eth_type_trans(skb, netdev);
 			rtl_rx_vlan_tag(rx_desc, skb);
 			if (work_done < budget) {
-				napi_gro_receive(&tp->napi, skb);
+				napi_gro_receive(napi, skb);
 				work_done++;
 				stats->rx_packets++;
 				stats->rx_bytes += pkt_len;
@@ -2252,8 +2258,7 @@ static void r8153_set_rx_early_timeout(struct r8152 *tp)
 
 static void r8153_set_rx_early_size(struct r8152 *tp)
 {
-	u32 mtu = tp->netdev->mtu;
-	u32 ocp_data = (agg_buf_sz - mtu - VLAN_ETH_HLEN - VLAN_HLEN) / 8;
+	u32 ocp_data = (agg_buf_sz - rx_reserved_size(tp->netdev->mtu)) / 4;
 
 	ocp_write_word(tp, MCU_TYPE_USB, USB_RX_EARLY_SIZE, ocp_data);
 }
@@ -2898,7 +2903,8 @@ static void r8153_first_init(struct r8152 *tp)
 
 	rtl_rx_vlan_en(tp, tp->netdev->features & NETIF_F_HW_VLAN_CTAG_RX);
 
-	ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, RTL8153_RMS);
+	ocp_data = tp->netdev->mtu + VLAN_ETH_HLEN + CRC_SIZE;
+	ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, ocp_data);
 	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_MTPS, MTPS_JUMBO);
 
 	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR0);
@@ -2950,7 +2956,8 @@ static void r8153_enter_oob(struct r8152 *tp)
 		usleep_range(1000, 2000);
 	}
 
-	ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, RTL8153_RMS);
+	ocp_data = tp->netdev->mtu + VLAN_ETH_HLEN + CRC_SIZE;
+	ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, ocp_data);
 
 	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TEREDO_CFG);
 	ocp_data &= ~TEREDO_WAKE_MASK;
@@ -3150,6 +3157,7 @@ static bool rtl8153_in_nway(struct r8152 *tp)
 static void set_carrier(struct r8152 *tp)
 {
 	struct net_device *netdev = tp->netdev;
+	struct napi_struct *napi = &tp->napi;
 	u8 speed;
 
 	speed = rtl8152_get_speed(tp);
@@ -3159,19 +3167,22 @@ static void set_carrier(struct r8152 *tp)
 			tp->rtl_ops.enable(tp);
 			set_bit(RTL8152_SET_RX_MODE, &tp->flags);
 			netif_stop_queue(netdev);
-			napi_disable(&tp->napi);
+			napi_disable(napi);
 			netif_carrier_on(netdev);
 			rtl_start_rx(tp);
 			napi_enable(&tp->napi);
 			netif_wake_queue(netdev);
 			netif_info(tp, link, netdev, "carrier on\n");
+		} else if (netif_queue_stopped(netdev) &&
+			   skb_queue_len(&tp->tx_queue) < tp->tx_qlen) {
+			netif_wake_queue(netdev);
 		}
 	} else {
 		if (netif_carrier_ok(netdev)) {
 			netif_carrier_off(netdev);
-			napi_disable(&tp->napi);
+			napi_disable(napi);
 			tp->rtl_ops.disable(tp);
-			napi_enable(&tp->napi);
+			napi_enable(napi);
 			netif_info(tp, link, netdev, "carrier off\n");
 		}
 	}
@@ -3633,11 +3644,13 @@ static int rtl8152_runtime_suspend(struct r8152 *tp)
 		tp->rtl_ops.autosuspend_en(tp, true);
 
 		if (netif_carrier_ok(netdev)) {
-			napi_disable(&tp->napi);
+			struct napi_struct *napi = &tp->napi;
+
+			napi_disable(napi);
 			rtl_stop_rx(tp);
 			rxdy_gated_en(tp, false);
 			ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, rcr);
-			napi_enable(&tp->napi);
+			napi_enable(napi);
 		}
 	}
 
@@ -3653,12 +3666,14 @@ static int rtl8152_system_suspend(struct r8152 *tp)
 	netif_device_detach(netdev);
 
 	if (netif_running(netdev) && test_bit(WORK_ENABLE, &tp->flags)) {
+		struct napi_struct *napi = &tp->napi;
+
 		clear_bit(WORK_ENABLE, &tp->flags);
 		usb_kill_urb(tp->intr_urb);
-		napi_disable(&tp->napi);
+		napi_disable(napi);
 		cancel_delayed_work_sync(&tp->schedule);
 		tp->rtl_ops.down(tp);
-		napi_enable(&tp->napi);
+		napi_enable(napi);
 	}
 
 	return ret;
@@ -3684,35 +3699,46 @@ static int rtl8152_suspend(struct usb_interface *intf, pm_message_t message)
 static int rtl8152_resume(struct usb_interface *intf)
 {
 	struct r8152 *tp = usb_get_intfdata(intf);
+	struct net_device *netdev = tp->netdev;
 
 	mutex_lock(&tp->control);
 
 	if (!test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
 		tp->rtl_ops.init(tp);
 		queue_delayed_work(system_long_wq, &tp->hw_phy_work, 0);
-		netif_device_attach(tp->netdev);
+		netif_device_attach(netdev);
 	}
 
-	if (netif_running(tp->netdev) && tp->netdev->flags & IFF_UP) {
+	if (netif_running(netdev) && netdev->flags & IFF_UP) {
 		if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
+			struct napi_struct *napi = &tp->napi;
+
 			tp->rtl_ops.autosuspend_en(tp, false);
-			napi_disable(&tp->napi);
+			napi_disable(napi);
 			set_bit(WORK_ENABLE, &tp->flags);
-			if (netif_carrier_ok(tp->netdev))
-				rtl_start_rx(tp);
-			napi_enable(&tp->napi);
+			if (netif_carrier_ok(netdev)) {
+				if (rtl8152_get_speed(tp) & LINK_STATUS) {
+					rtl_start_rx(tp);
+				} else {
+					netif_carrier_off(netdev);
+					tp->rtl_ops.disable(tp);
+					netif_info(tp, link, netdev,
+						   "linking down\n");
+				}
+			}
+			napi_enable(napi);
 			clear_bit(SELECTIVE_SUSPEND, &tp->flags);
 			smp_mb__after_atomic();
 			if (!list_empty(&tp->rx_done))
 				napi_schedule(&tp->napi);
 		} else {
 			tp->rtl_ops.up(tp);
-			netif_carrier_off(tp->netdev);
+			netif_carrier_off(netdev);
 			set_bit(WORK_ENABLE, &tp->flags);
 		}
 		usb_submit_urb(tp->intr_urb, GFP_KERNEL);
 	} else if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
-		if (tp->netdev->flags & IFF_UP)
+		if (netdev->flags & IFF_UP)
 			tp->rtl_ops.autosuspend_en(tp, false);
 		clear_bit(SELECTIVE_SUSPEND, &tp->flags);
 	}
@@ -3800,7 +3826,8 @@ static void rtl8152_get_drvinfo(struct net_device *netdev,
 }
 
 static
-int rtl8152_get_settings(struct net_device *netdev, struct ethtool_cmd *cmd)
+int rtl8152_get_link_ksettings(struct net_device *netdev,
+			       struct ethtool_link_ksettings *cmd)
 {
 	struct r8152 *tp = netdev_priv(netdev);
 	int ret;
@@ -3814,7 +3841,7 @@ int rtl8152_get_settings(struct net_device *netdev, struct ethtool_cmd *cmd)
 
 	mutex_lock(&tp->control);
 
-	ret = mii_ethtool_gset(&tp->mii, cmd);
+	ret = mii_ethtool_get_link_ksettings(&tp->mii, cmd);
 
 	mutex_unlock(&tp->control);
 
@@ -3824,7 +3851,8 @@ out:
 	return ret;
 }
 
-static int rtl8152_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+static int rtl8152_set_link_ksettings(struct net_device *dev,
+				      const struct ethtool_link_ksettings *cmd)
 {
 	struct r8152 *tp = netdev_priv(dev);
 	int ret;
@@ -3835,11 +3863,12 @@ static int rtl8152_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 
 	mutex_lock(&tp->control);
 
-	ret = rtl8152_set_speed(tp, cmd->autoneg, cmd->speed, cmd->duplex);
+	ret = rtl8152_set_speed(tp, cmd->base.autoneg, cmd->base.speed,
+				cmd->base.duplex);
 	if (!ret) {
-		tp->autoneg = cmd->autoneg;
-		tp->speed = cmd->speed;
-		tp->duplex = cmd->duplex;
+		tp->autoneg = cmd->base.autoneg;
+		tp->speed = cmd->base.speed;
+		tp->duplex = cmd->base.duplex;
 	}
 
 	mutex_unlock(&tp->control);
@@ -4117,8 +4146,6 @@ static int rtl8152_set_coalesce(struct net_device *netdev,
 
 static const struct ethtool_ops ops = {
 	.get_drvinfo = rtl8152_get_drvinfo,
-	.get_settings = rtl8152_get_settings,
-	.set_settings = rtl8152_set_settings,
 	.get_link = ethtool_op_get_link,
 	.nway_reset = rtl8152_nway_reset,
 	.get_msglevel = rtl8152_get_msglevel,
@@ -4132,6 +4159,8 @@ static const struct ethtool_ops ops = {
 	.set_coalesce = rtl8152_set_coalesce,
 	.get_eee = rtl_ethtool_get_eee,
 	.set_eee = rtl_ethtool_set_eee,
+	.get_link_ksettings = rtl8152_get_link_ksettings,
+	.set_link_ksettings = rtl8152_set_link_ksettings,
 };
 
 static int rtl8152_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
@@ -4200,8 +4229,14 @@ static int rtl8152_change_mtu(struct net_device *dev, int new_mtu)
 
 	dev->mtu = new_mtu;
 
-	if (netif_running(dev) && netif_carrier_ok(dev))
-		r8153_set_rx_early_size(tp);
+	if (netif_running(dev)) {
+		u32 rms = new_mtu + VLAN_ETH_HLEN + CRC_SIZE;
+
+		ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, rms);
+
+		if (netif_carrier_ok(dev))
+			r8153_set_rx_early_size(tp);
+	}
 
 	mutex_unlock(&tp->control);
 
@@ -4224,44 +4259,6 @@ static const struct net_device_ops rtl8152_netdev_ops = {
 	.ndo_features_check	= rtl8152_features_check,
 };
 
-static void r8152b_get_version(struct r8152 *tp)
-{
-	u32	ocp_data;
-	u16	version;
-
-	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR1);
-	version = (u16)(ocp_data & VERSION_MASK);
-
-	switch (version) {
-	case 0x4c00:
-		tp->version = RTL_VER_01;
-		break;
-	case 0x4c10:
-		tp->version = RTL_VER_02;
-		break;
-	case 0x5c00:
-		tp->version = RTL_VER_03;
-		tp->mii.supports_gmii = 1;
-		break;
-	case 0x5c10:
-		tp->version = RTL_VER_04;
-		tp->mii.supports_gmii = 1;
-		break;
-	case 0x5c20:
-		tp->version = RTL_VER_05;
-		tp->mii.supports_gmii = 1;
-		break;
-	case 0x5c30:
-		tp->version = RTL_VER_06;
-		tp->mii.supports_gmii = 1;
-		break;
-	default:
-		netif_info(tp, probe, tp->netdev,
-			   "Unknown version 0x%04x\n", version);
-		break;
-	}
-}
-
 static void rtl8152_unload(struct r8152 *tp)
 {
 	if (test_bit(RTL8152_UNPLUG, &tp->flags))
@@ -4326,14 +4323,66 @@ static int rtl_ops_init(struct r8152 *tp)
 	return ret;
 }
 
+static u8 rtl_get_version(struct usb_interface *intf)
+{
+	struct usb_device *udev = interface_to_usbdev(intf);
+	u32 ocp_data = 0;
+	__le32 *tmp;
+	u8 version;
+	int ret;
+
+	tmp = kmalloc(sizeof(*tmp), GFP_KERNEL);
+	if (!tmp)
+		return 0;
+
+	ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
+			      RTL8152_REQ_GET_REGS, RTL8152_REQT_READ,
+			      PLA_TCR0, MCU_TYPE_PLA, tmp, sizeof(*tmp), 500);
+	if (ret > 0)
+		ocp_data = (__le32_to_cpu(*tmp) >> 16) & VERSION_MASK;
+
+	kfree(tmp);
+
+	switch (ocp_data) {
+	case 0x4c00:
+		version = RTL_VER_01;
+		break;
+	case 0x4c10:
+		version = RTL_VER_02;
+		break;
+	case 0x5c00:
+		version = RTL_VER_03;
+		break;
+	case 0x5c10:
+		version = RTL_VER_04;
+		break;
+	case 0x5c20:
+		version = RTL_VER_05;
+		break;
+	case 0x5c30:
+		version = RTL_VER_06;
+		break;
+	default:
+		version = RTL_VER_UNKNOWN;
+		dev_info(&intf->dev, "Unknown version 0x%04x\n", ocp_data);
+		break;
+	}
+
+	return version;
+}
+
 static int rtl8152_probe(struct usb_interface *intf,
 			 const struct usb_device_id *id)
 {
 	struct usb_device *udev = interface_to_usbdev(intf);
+	u8 version = rtl_get_version(intf);
 	struct r8152 *tp;
 	struct net_device *netdev;
 	int ret;
 
+	if (version == RTL_VER_UNKNOWN)
+		return -ENODEV;
+
 	if (udev->actconfig->desc.bConfigurationValue != 1) {
 		usb_driver_set_configuration(udev, 1);
 		return -ENODEV;
@@ -4353,8 +4402,18 @@ static int rtl8152_probe(struct usb_interface *intf,
 	tp->udev = udev;
 	tp->netdev = netdev;
 	tp->intf = intf;
+	tp->version = version;
+
+	switch (version) {
+	case RTL_VER_01:
+	case RTL_VER_02:
+		tp->mii.supports_gmii = 0;
+		break;
+	default:
+		tp->mii.supports_gmii = 1;
+		break;
+	}
 
-	r8152b_get_version(tp);
 	ret = rtl_ops_init(tp);
 	if (ret)
 		goto out;
@@ -4497,6 +4556,8 @@ static void rtl8152_disconnect(struct usb_interface *intf)
 static struct usb_device_id rtl8152_table[] = {
 	{REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, 0x8152)},
 	{REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, 0x8153)},
+	{REALTEK_USB_DEVICE(VENDOR_ID_MICROSOFT, 0x07ab)},
+	{REALTEK_USB_DEVICE(VENDOR_ID_MICROSOFT, 0x07c6)},
 	{REALTEK_USB_DEVICE(VENDOR_ID_SAMSUNG, 0xa101)},
 	{REALTEK_USB_DEVICE(VENDOR_ID_LENOVO,  0x304f)},
 	{REALTEK_USB_DEVICE(VENDOR_ID_LENOVO,  0x3062)},