Merge branch 'lan78xx-next'

Woojung Huh says:

====================
lan78xx: driver update

This patch series add new ethtool functions of set_pauseparam  & get_pauseparam
and MAINTAINERS entry.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 97 insertions, 18 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index 27393cff1707..12b764f4c93c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -11332,6 +11332,13 @@ S:	Maintained
 F:	drivers/usb/host/isp116x*
 F:	include/linux/usb/isp116x.h
 
+USB LAN78XX ETHERNET DRIVER
+M:	Woojung Huh <woojung.huh@microchip.com>
+M:	Microchip Linux Driver Support <UNGLinuxDriver@microchip.com>
+L:	netdev@vger.kernel.org
+S:	Maintained
+F:	drivers/net/usb/lan78xx.*
+
 USB MASS STORAGE DRIVER
 M:	Matthew Dharm <mdharm-usb@one-eyed-alien.net>
 L:	linux-usb@vger.kernel.org
diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
index 1c299b8a162d..705c180163c5 100644
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c
@@ -36,7 +36,7 @@
 #define DRIVER_AUTHOR	"WOOJUNG HUH <woojung.huh@microchip.com>"
 #define DRIVER_DESC	"LAN78XX USB 3.0 Gigabit Ethernet Devices"
 #define DRIVER_NAME	"lan78xx"
-#define DRIVER_VERSION	"1.0.2"
+#define DRIVER_VERSION	"1.0.3"
 
 #define TX_TIMEOUT_JIFFIES		(5 * HZ)
 #define THROTTLE_JIFFIES		(HZ / 8)
@@ -278,8 +278,12 @@ struct lan78xx_net {
 	int			link_on;
 	u8			mdix_ctrl;
 
-	u32			devid;
+	u32			chipid;
+	u32			chiprev;
 	struct mii_bus		*mdiobus;
+
+	int			fc_autoneg;
+	u8			fc_request_control;
 };
 
 /* use ethtool to change the level for any given device */
@@ -471,7 +475,7 @@ static int lan78xx_read_raw_eeprom(struct lan78xx_net *dev, u32 offset,
 	 */
 	ret = lan78xx_read_reg(dev, HW_CFG, &val);
 	saved = val;
-	if ((dev->devid & ID_REV_CHIP_ID_MASK_) == 0x78000000) {
+	if (dev->chipid == ID_REV_CHIP_ID_7800_) {
 		val &= ~(HW_CFG_LED1_EN_ | HW_CFG_LED0_EN_);
 		ret = lan78xx_write_reg(dev, HW_CFG, val);
 	}
@@ -505,7 +509,7 @@ static int lan78xx_read_raw_eeprom(struct lan78xx_net *dev, u32 offset,
 
 	retval = 0;
 exit:
-	if ((dev->devid & ID_REV_CHIP_ID_MASK_) == 0x78000000)
+	if (dev->chipid == ID_REV_CHIP_ID_7800_)
 		ret = lan78xx_write_reg(dev, HW_CFG, saved);
 
 	return retval;
@@ -539,7 +543,7 @@ static int lan78xx_write_raw_eeprom(struct lan78xx_net *dev, u32 offset,
 	 */
 	ret = lan78xx_read_reg(dev, HW_CFG, &val);
 	saved = val;
-	if ((dev->devid & ID_REV_CHIP_ID_MASK_) == 0x78000000) {
+	if (dev->chipid == ID_REV_CHIP_ID_7800_) {
 		val &= ~(HW_CFG_LED1_EN_ | HW_CFG_LED0_EN_);
 		ret = lan78xx_write_reg(dev, HW_CFG, val);
 	}
@@ -587,7 +591,7 @@ static int lan78xx_write_raw_eeprom(struct lan78xx_net *dev, u32 offset,
 
 	retval = 0;
 exit:
-	if ((dev->devid & ID_REV_CHIP_ID_MASK_) == 0x78000000)
+	if (dev->chipid == ID_REV_CHIP_ID_7800_)
 		ret = lan78xx_write_reg(dev, HW_CFG, saved);
 
 	return retval;
@@ -901,11 +905,15 @@ static int lan78xx_update_flowcontrol(struct lan78xx_net *dev, u8 duplex,
 {
 	u32 flow = 0, fct_flow = 0;
 	int ret;
+	u8 cap;
 
-	u8 cap = mii_resolve_flowctrl_fdx(lcladv, rmtadv);
+	if (dev->fc_autoneg)
+		cap = mii_resolve_flowctrl_fdx(lcladv, rmtadv);
+	else
+		cap = dev->fc_request_control;
 
 	if (cap & FLOW_CTRL_TX)
-		flow = (FLOW_CR_TX_FCEN_ | 0xFFFF);
+		flow |= (FLOW_CR_TX_FCEN_ | 0xFFFF);
 
 	if (cap & FLOW_CTRL_RX)
 		flow |= FLOW_CR_RX_FCEN_;
@@ -1385,6 +1393,62 @@ static int lan78xx_set_settings(struct net_device *net, struct ethtool_cmd *cmd)
 	return ret;
 }
 
+static void lan78xx_get_pause(struct net_device *net,
+			      struct ethtool_pauseparam *pause)
+{
+	struct lan78xx_net *dev = netdev_priv(net);
+	struct phy_device *phydev = net->phydev;
+	struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
+
+	phy_ethtool_gset(phydev, &ecmd);
+
+	pause->autoneg = dev->fc_autoneg;
+
+	if (dev->fc_request_control & FLOW_CTRL_TX)
+		pause->tx_pause = 1;
+
+	if (dev->fc_request_control & FLOW_CTRL_RX)
+		pause->rx_pause = 1;
+}
+
+static int lan78xx_set_pause(struct net_device *net,
+			     struct ethtool_pauseparam *pause)
+{
+	struct lan78xx_net *dev = netdev_priv(net);
+	struct phy_device *phydev = net->phydev;
+	struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
+	int ret;
+
+	phy_ethtool_gset(phydev, &ecmd);
+
+	if (pause->autoneg && !ecmd.autoneg) {
+		ret = -EINVAL;
+		goto exit;
+	}
+
+	dev->fc_request_control = 0;
+	if (pause->rx_pause)
+		dev->fc_request_control |= FLOW_CTRL_RX;
+
+	if (pause->tx_pause)
+		dev->fc_request_control |= FLOW_CTRL_TX;
+
+	if (ecmd.autoneg) {
+		u32 mii_adv;
+
+		ecmd.advertising &= ~(ADVERTISED_Pause | ADVERTISED_Asym_Pause);
+		mii_adv = (u32)mii_advertise_flowctrl(dev->fc_request_control);
+		ecmd.advertising |= mii_adv_to_ethtool_adv_t(mii_adv);
+		phy_ethtool_sset(phydev, &ecmd);
+	}
+
+	dev->fc_autoneg = pause->autoneg;
+
+	ret = 0;
+exit:
+	return ret;
+}
+
 static const struct ethtool_ops lan78xx_ethtool_ops = {
 	.get_link	= lan78xx_get_link,
 	.nway_reset	= lan78xx_nway_reset,
@@ -1403,6 +1467,8 @@ static const struct ethtool_ops lan78xx_ethtool_ops = {
 	.set_wol	= lan78xx_set_wol,
 	.get_eee	= lan78xx_get_eee,
 	.set_eee	= lan78xx_set_eee,
+	.get_pauseparam	= lan78xx_get_pause,
+	.set_pauseparam	= lan78xx_set_pause,
 };
 
 static int lan78xx_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
@@ -1555,9 +1621,9 @@ static int lan78xx_mdio_init(struct lan78xx_net *dev)
 	snprintf(dev->mdiobus->id, MII_BUS_ID_SIZE, "usb-%03d:%03d",
 		 dev->udev->bus->busnum, dev->udev->devnum);
 
-	switch (dev->devid & ID_REV_CHIP_ID_MASK_) {
-	case 0x78000000:
-	case 0x78500000:
+	switch (dev->chipid) {
+	case ID_REV_CHIP_ID_7800_:
+	case ID_REV_CHIP_ID_7850_:
 		/* set to internal PHY id */
 		dev->mdiobus->phy_mask = ~(1 << 1);
 		break;
@@ -1590,6 +1656,7 @@ static void lan78xx_link_status_change(struct net_device *net)
 static int lan78xx_phy_init(struct lan78xx_net *dev)
 {
 	int ret;
+	u32 mii_adv;
 	struct phy_device *phydev = dev->net->phydev;
 
 	phydev = phy_find_first(dev->mdiobus);
@@ -1622,14 +1689,17 @@ static int lan78xx_phy_init(struct lan78xx_net *dev)
 
 	/* MAC doesn't support 1000T Half */
 	phydev->supported &= ~SUPPORTED_1000baseT_Half;
-	phydev->supported |= (SUPPORTED_10baseT_Half |
-			      SUPPORTED_10baseT_Full |
-			      SUPPORTED_100baseT_Half |
-			      SUPPORTED_100baseT_Full |
-			      SUPPORTED_1000baseT_Full |
-			      SUPPORTED_Pause | SUPPORTED_Asym_Pause);
+
+	/* support both flow controls */
+	dev->fc_request_control = (FLOW_CTRL_RX | FLOW_CTRL_TX);
+	phydev->advertising &= ~(ADVERTISED_Pause | ADVERTISED_Asym_Pause);
+	mii_adv = (u32)mii_advertise_flowctrl(dev->fc_request_control);
+	phydev->advertising |= mii_adv_to_ethtool_adv_t(mii_adv);
+
 	genphy_config_aneg(phydev);
 
+	dev->fc_autoneg = phydev->autoneg;
+
 	phy_start(phydev);
 
 	netif_dbg(dev, ifup, dev->net, "phy initialised successfully");
@@ -1918,7 +1988,8 @@ static int lan78xx_reset(struct lan78xx_net *dev)
 
 	/* save DEVID for later usage */
 	ret = lan78xx_read_reg(dev, ID_REV, &buf);
-	dev->devid = buf;
+	dev->chipid = (buf & ID_REV_CHIP_ID_MASK_) >> 16;
+	dev->chiprev = buf & ID_REV_CHIP_REV_MASK_;
 
 	/* Respond to the IN token with a NAK */
 	ret = lan78xx_read_reg(dev, USB_CFG0, &buf);
diff --git a/drivers/net/usb/lan78xx.h b/drivers/net/usb/lan78xx.h
index a93fb653e7c5..40927906109a 100644
--- a/drivers/net/usb/lan78xx.h
+++ b/drivers/net/usb/lan78xx.h
@@ -107,6 +107,7 @@
 #define ID_REV_CHIP_ID_MASK_		(0xFFFF0000)
 #define ID_REV_CHIP_REV_MASK_		(0x0000FFFF)
 #define ID_REV_CHIP_ID_7800_		(0x7800)
+#define ID_REV_CHIP_ID_7850_		(0x7850)
 
 #define FPGA_REV			(0x04)
 #define FPGA_REV_MINOR_MASK_		(0x0000FF00)