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

Pull networking fixes from David Miller:

 1) Include fixes for netrom and dsa (Fabian Frederick and Florian
    Fainelli)

 2) Fix FIXED_PHY support in stmmac, from Giuseppe CAVALLARO.

 3) Several SKB use after free fixes (vxlan, openvswitch, vxlan,
    ip_tunnel, fou), from Li ROngQing.

 4) fec driver PTP support fixes from Luwei Zhou and Nimrod Andy.

 5) Use after free in virtio_net, from Michael S Tsirkin.

 6) Fix flow mask handling for megaflows in openvswitch, from Pravin B
    Shelar.

 7) ISDN gigaset and capi bug fixes from Tilman Schmidt.

 8) Fix route leak in ip_send_unicast_reply(), from Vasily Averin.

 9) Fix two eBPF JIT bugs on x86, from Alexei Starovoitov.

10) TCP_SKB_CB() reorganization caused a few regressions, fixed by Cong
    Wang and Eric Dumazet.

11) Don't overwrite end of SKB when parsing malformed sctp ASCONF
    chunks, from Daniel Borkmann.

12) Don't call sock_kfree_s() with NULL pointers, this function also has
    the side effect of adjusting the socket memory usage.  From Cong Wang.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (90 commits)
  bna: fix skb->truesize underestimation
  net: dsa: add includes for ethtool and phy_fixed definitions
  openvswitch: Set flow-key members.
  netrom: use linux/uaccess.h
  dsa: Fix conversion from host device to mii bus
  tipc: fix bug in bundled buffer reception
  ipv6: introduce tcp_v6_iif()
  sfc: add support for skb->xmit_more
  r8152: return -EBUSY for runtime suspend
  ipv4: fix a potential use after free in fou.c
  ipv4: fix a potential use after free in ip_tunnel_core.c
  hyperv: Add handling of IP header with option field in netvsc_set_hash()
  openvswitch: Create right mask with disabled megaflows
  vxlan: fix a free after use
  openvswitch: fix a use after free
  ipv4: dst_entry leak in ip_send_unicast_reply()
  ipv4: clean up cookie_v4_check()
  ipv4: share tcp_v4_save_options() with cookie_v4_check()
  ipv4: call __ip_options_echo() in cookie_v4_check()
  atm: simplify lanai.c by using module_pci_driver
  ...

43 files changed, 1251 insertions, 397 deletions

diff --git a/drivers/net/dsa/mv88e6060.c b/drivers/net/dsa/mv88e6060.c
index 776e965dc9f4..05b0ca3bf71d 100644
--- a/drivers/net/dsa/mv88e6060.c
+++ b/drivers/net/dsa/mv88e6060.c
@@ -21,8 +21,12 @@
 
 static int reg_read(struct dsa_switch *ds, int addr, int reg)
 {
-	return mdiobus_read(to_mii_bus(ds->master_dev),
-			    ds->pd->sw_addr + addr, reg);
+	struct mii_bus *bus = dsa_host_dev_to_mii_bus(ds->master_dev);
+
+	if (bus == NULL)
+		return -EINVAL;
+
+	return mdiobus_read(bus, ds->pd->sw_addr + addr, reg);
 }
 
 #define REG_READ(addr, reg)					\
@@ -38,8 +42,12 @@ static int reg_read(struct dsa_switch *ds, int addr, int reg)
 
 static int reg_write(struct dsa_switch *ds, int addr, int reg, u16 val)
 {
-	return mdiobus_write(to_mii_bus(ds->master_dev),
-			     ds->pd->sw_addr + addr, reg, val);
+	struct mii_bus *bus = dsa_host_dev_to_mii_bus(ds->master_dev);
+
+	if (bus == NULL)
+		return -EINVAL;
+
+	return mdiobus_write(bus, ds->pd->sw_addr + addr, reg, val);
 }
 
 #define REG_WRITE(addr, reg, val)				\
diff --git a/drivers/net/dsa/mv88e6171.c b/drivers/net/dsa/mv88e6171.c
index 6365e30138af..1020a7af67cf 100644
--- a/drivers/net/dsa/mv88e6171.c
+++ b/drivers/net/dsa/mv88e6171.c
@@ -206,7 +206,7 @@ static int mv88e6171_setup_port(struct dsa_switch *ds, int p)
 	 */
 	val = 0x0433;
 	if (dsa_is_cpu_port(ds, p)) {
-		if (ds->dst->tag_protocol == htons(ETH_P_EDSA))
+		if (ds->dst->tag_protocol == DSA_TAG_PROTO_EDSA)
 			val |= 0x3300;
 		else
 			val |= 0x0100;
diff --git a/drivers/net/dsa/mv88e6xxx.c b/drivers/net/dsa/mv88e6xxx.c
index d6f6428b27dc..a6c90cf5634d 100644
--- a/drivers/net/dsa/mv88e6xxx.c
+++ b/drivers/net/dsa/mv88e6xxx.c
@@ -75,11 +75,14 @@ int __mv88e6xxx_reg_read(struct mii_bus *bus, int sw_addr, int addr, int reg)
 int mv88e6xxx_reg_read(struct dsa_switch *ds, int addr, int reg)
 {
 	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
+	struct mii_bus *bus = dsa_host_dev_to_mii_bus(ds->master_dev);
 	int ret;
 
+	if (bus == NULL)
+		return -EINVAL;
+
 	mutex_lock(&ps->smi_mutex);
-	ret = __mv88e6xxx_reg_read(to_mii_bus(ds->master_dev),
-				   ds->pd->sw_addr, addr, reg);
+	ret = __mv88e6xxx_reg_read(bus, ds->pd->sw_addr, addr, reg);
 	mutex_unlock(&ps->smi_mutex);
 
 	return ret;
@@ -119,11 +122,14 @@ int __mv88e6xxx_reg_write(struct mii_bus *bus, int sw_addr, int addr,
 int mv88e6xxx_reg_write(struct dsa_switch *ds, int addr, int reg, u16 val)
 {
 	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
+	struct mii_bus *bus = dsa_host_dev_to_mii_bus(ds->master_dev);
 	int ret;
 
+	if (bus == NULL)
+		return -EINVAL;
+
 	mutex_lock(&ps->smi_mutex);
-	ret = __mv88e6xxx_reg_write(to_mii_bus(ds->master_dev),
-				    ds->pd->sw_addr, addr, reg, val);
+	ret = __mv88e6xxx_reg_write(bus, ds->pd->sw_addr, addr, reg, val);
 	mutex_unlock(&ps->smi_mutex);
 
 	return ret;
diff --git a/drivers/net/ethernet/apm/xgene/Makefile b/drivers/net/ethernet/apm/xgene/Makefile
index 589b35247713..68be565548c0 100644
--- a/drivers/net/ethernet/apm/xgene/Makefile
+++ b/drivers/net/ethernet/apm/xgene/Makefile
@@ -2,6 +2,6 @@
 # Makefile for APM X-Gene Ethernet Driver.
 #
 
-xgene-enet-objs := xgene_enet_hw.o xgene_enet_xgmac.o \
+xgene-enet-objs := xgene_enet_hw.o xgene_enet_sgmac.o xgene_enet_xgmac.o \
 		   xgene_enet_main.o xgene_enet_ethtool.o
 obj-$(CONFIG_NET_XGENE) += xgene-enet.o
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_ethtool.c b/drivers/net/ethernet/apm/xgene/xgene_enet_ethtool.c
index c1c997b92342..416d6ebfc2ce 100644
--- a/drivers/net/ethernet/apm/xgene/xgene_enet_ethtool.c
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_ethtool.c
@@ -64,16 +64,25 @@ static int xgene_get_settings(struct net_device *ndev, struct ethtool_cmd *cmd)
 			return -ENODEV;
 
 		return phy_ethtool_gset(phydev, cmd);
+	} else if (pdata->phy_mode == PHY_INTERFACE_MODE_SGMII) {
+		cmd->supported = SUPPORTED_1000baseT_Full |
+				 SUPPORTED_Autoneg | SUPPORTED_MII;
+		cmd->advertising = cmd->supported;
+		ethtool_cmd_speed_set(cmd, SPEED_1000);
+		cmd->duplex = DUPLEX_FULL;
+		cmd->port = PORT_MII;
+		cmd->transceiver = XCVR_INTERNAL;
+		cmd->autoneg = AUTONEG_ENABLE;
+	} else {
+		cmd->supported = SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE;
+		cmd->advertising = cmd->supported;
+		ethtool_cmd_speed_set(cmd, SPEED_10000);
+		cmd->duplex = DUPLEX_FULL;
+		cmd->port = PORT_FIBRE;
+		cmd->transceiver = XCVR_INTERNAL;
+		cmd->autoneg = AUTONEG_DISABLE;
 	}
 
-	cmd->supported = SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE;
-	cmd->advertising = cmd->supported;
-	ethtool_cmd_speed_set(cmd, SPEED_10000);
-	cmd->duplex = DUPLEX_FULL;
-	cmd->port = PORT_FIBRE;
-	cmd->transceiver = XCVR_EXTERNAL;
-	cmd->autoneg = AUTONEG_DISABLE;
-
 	return 0;
 }
 
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c
index c8f3824f7606..63ea1941e973 100644
--- a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c
@@ -410,7 +410,6 @@ static void xgene_gmac_set_mac_addr(struct xgene_enet_pdata *pdata)
 	addr0 = (dev_addr[3] << 24) | (dev_addr[2] << 16) |
 		(dev_addr[1] << 8) | dev_addr[0];
 	addr1 = (dev_addr[5] << 24) | (dev_addr[4] << 16);
-	addr1 |= pdata->phy_addr & 0xFFFF;
 
 	xgene_enet_wr_mcx_mac(pdata, STATION_ADDR0_ADDR, addr0);
 	xgene_enet_wr_mcx_mac(pdata, STATION_ADDR1_ADDR, addr1);
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.h b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.h
index 15ec4267779c..38558584080e 100644
--- a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.h
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.h
@@ -44,6 +44,7 @@ static inline u32 xgene_get_bits(u32 val, u32 start, u32 end)
 
 enum xgene_enet_rm {
 	RM0,
+	RM1,
 	RM3 = 3
 };
 
@@ -143,6 +144,8 @@ enum xgene_enet_rm {
 #define CFG_CLE_FPSEL0_SET(dst, val)		xgene_set_bits(dst, val, 16, 4)
 #define CFG_MACMODE_SET(dst, val)		xgene_set_bits(dst, val, 18, 2)
 #define CFG_WAITASYNCRD_SET(dst, val)		xgene_set_bits(dst, val, 0, 16)
+#define CFG_CLE_DSTQID0(val)		(val & GENMASK(11, 0))
+#define CFG_CLE_FPSEL0(val)		((val << 16) & GENMASK(19, 16))
 #define ICM_CONFIG0_REG_0_ADDR		0x0400
 #define ICM_CONFIG2_REG_0_ADDR		0x0410
 #define RX_DV_GATE_REG_0_ADDR		0x05fc
@@ -179,7 +182,6 @@ enum xgene_enet_rm {
 #define TUND_ADDR			0x4a
 
 #define TSO_IPPROTO_TCP			1
-#define	FULL_DUPLEX			2
 
 #define USERINFO_POS			0
 #define USERINFO_LEN			32
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
index 9b85239ceedf..3c208cc6f6bb 100644
--- a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
@@ -21,6 +21,7 @@
 
 #include "xgene_enet_main.h"
 #include "xgene_enet_hw.h"
+#include "xgene_enet_sgmac.h"
 #include "xgene_enet_xgmac.h"
 
 static void xgene_enet_init_bufpool(struct xgene_enet_desc_ring *buf_pool)
@@ -813,6 +814,7 @@ static int xgene_enet_get_resources(struct xgene_enet_pdata *pdata)
 		return pdata->phy_mode;
 	}
 	if (pdata->phy_mode != PHY_INTERFACE_MODE_RGMII &&
+	    pdata->phy_mode != PHY_INTERFACE_MODE_SGMII &&
 	    pdata->phy_mode != PHY_INTERFACE_MODE_XGMII) {
 		dev_err(dev, "Incorrect phy-connection-type specified\n");
 		return -ENODEV;
@@ -830,14 +832,13 @@ static int xgene_enet_get_resources(struct xgene_enet_pdata *pdata)
 	pdata->eth_csr_addr = base_addr + BLOCK_ETH_CSR_OFFSET;
 	pdata->eth_ring_if_addr = base_addr + BLOCK_ETH_RING_IF_OFFSET;
 	pdata->eth_diag_csr_addr = base_addr + BLOCK_ETH_DIAG_CSR_OFFSET;
-	if (pdata->phy_mode == PHY_INTERFACE_MODE_RGMII) {
+	if (pdata->phy_mode == PHY_INTERFACE_MODE_RGMII ||
+	    pdata->phy_mode == PHY_INTERFACE_MODE_SGMII) {
 		pdata->mcx_mac_addr = base_addr + BLOCK_ETH_MAC_OFFSET;
 		pdata->mcx_mac_csr_addr = base_addr + BLOCK_ETH_MAC_CSR_OFFSET;
-		pdata->rm = RM3;
 	} else {
 		pdata->mcx_mac_addr = base_addr + BLOCK_AXG_MAC_OFFSET;
 		pdata->mcx_mac_csr_addr = base_addr + BLOCK_AXG_MAC_CSR_OFFSET;
-		pdata->rm = RM0;
 	}
 	pdata->rx_buff_cnt = NUM_PKT_BUF;
 
@@ -881,10 +882,17 @@ static void xgene_enet_setup_ops(struct xgene_enet_pdata *pdata)
 	case PHY_INTERFACE_MODE_RGMII:
 		pdata->mac_ops = &xgene_gmac_ops;
 		pdata->port_ops = &xgene_gport_ops;
+		pdata->rm = RM3;
+		break;
+	case PHY_INTERFACE_MODE_SGMII:
+		pdata->mac_ops = &xgene_sgmac_ops;
+		pdata->port_ops = &xgene_sgport_ops;
+		pdata->rm = RM1;
 		break;
 	default:
 		pdata->mac_ops = &xgene_xgmac_ops;
 		pdata->port_ops = &xgene_xgport_ops;
+		pdata->rm = RM0;
 		break;
 	}
 }
@@ -895,6 +903,7 @@ static int xgene_enet_probe(struct platform_device *pdev)
 	struct xgene_enet_pdata *pdata;
 	struct device *dev = &pdev->dev;
 	struct napi_struct *napi;
+	struct xgene_mac_ops *mac_ops;
 	int ret;
 
 	ndev = alloc_etherdev(sizeof(struct xgene_enet_pdata));
@@ -937,10 +946,11 @@ static int xgene_enet_probe(struct platform_device *pdev)
 
 	napi = &pdata->rx_ring->napi;
 	netif_napi_add(ndev, napi, xgene_enet_napi, NAPI_POLL_WEIGHT);
+	mac_ops = pdata->mac_ops;
 	if (pdata->phy_mode == PHY_INTERFACE_MODE_RGMII)
 		ret = xgene_enet_mdio_config(pdata);
 	else
-		INIT_DELAYED_WORK(&pdata->link_work, xgene_enet_link_state);
+		INIT_DELAYED_WORK(&pdata->link_work, mac_ops->link_state);
 
 	return ret;
 err:
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_main.h b/drivers/net/ethernet/apm/xgene/xgene_enet_main.h
index 86cf68b65584..874e5a01161f 100644
--- a/drivers/net/ethernet/apm/xgene/xgene_enet_main.h
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_main.h
@@ -39,6 +39,9 @@
 #define NUM_PKT_BUF	64
 #define NUM_BUFPOOL	32
 
+#define PHY_POLL_LINK_ON	(10 * HZ)
+#define PHY_POLL_LINK_OFF	(PHY_POLL_LINK_ON / 5)
+
 /* software context of a descriptor ring */
 struct xgene_enet_desc_ring {
 	struct net_device *ndev;
@@ -76,6 +79,7 @@ struct xgene_mac_ops {
 	void (*tx_disable)(struct xgene_enet_pdata *pdata);
 	void (*rx_disable)(struct xgene_enet_pdata *pdata);
 	void (*set_mac_addr)(struct xgene_enet_pdata *pdata);
+	void (*link_state)(struct work_struct *work);
 };
 
 struct xgene_port_ops {
@@ -109,7 +113,6 @@ struct xgene_enet_pdata {
 	void __iomem *base_addr;
 	void __iomem *ring_csr_addr;
 	void __iomem *ring_cmd_addr;
-	u32 phy_addr;
 	int phy_mode;
 	enum xgene_enet_rm rm;
 	struct rtnl_link_stats64 stats;
@@ -118,6 +121,13 @@ struct xgene_enet_pdata {
 	struct delayed_work link_work;
 };
 
+struct xgene_indirect_ctl {
+	void __iomem *addr;
+	void __iomem *ctl;
+	void __iomem *cmd;
+	void __iomem *cmd_done;
+};
+
 /* Set the specified value into a bit-field defined by its starting position
  * and length within a single u64.
  */
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c b/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c
new file mode 100644
index 000000000000..e6d24c210198
--- /dev/null
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c
@@ -0,0 +1,389 @@
+/* Applied Micro X-Gene SoC Ethernet Driver
+ *
+ * Copyright (c) 2014, Applied Micro Circuits Corporation
+ * Authors: Iyappan Subramanian <isubramanian@apm.com>
+ *	    Keyur Chudgar <kchudgar@apm.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "xgene_enet_main.h"
+#include "xgene_enet_hw.h"
+#include "xgene_enet_sgmac.h"
+
+static void xgene_enet_wr_csr(struct xgene_enet_pdata *p, u32 offset, u32 val)
+{
+	iowrite32(val, p->eth_csr_addr + offset);
+}
+
+static void xgene_enet_wr_ring_if(struct xgene_enet_pdata *p,
+				  u32 offset, u32 val)
+{
+	iowrite32(val, p->eth_ring_if_addr + offset);
+}
+
+static void xgene_enet_wr_diag_csr(struct xgene_enet_pdata *p,
+				   u32 offset, u32 val)
+{
+	iowrite32(val, p->eth_diag_csr_addr + offset);
+}
+
+static bool xgene_enet_wr_indirect(struct xgene_indirect_ctl *ctl,
+				   u32 wr_addr, u32 wr_data)
+{
+	int i;
+
+	iowrite32(wr_addr, ctl->addr);
+	iowrite32(wr_data, ctl->ctl);
+	iowrite32(XGENE_ENET_WR_CMD, ctl->cmd);
+
+	/* wait for write command to complete */
+	for (i = 0; i < 10; i++) {
+		if (ioread32(ctl->cmd_done)) {
+			iowrite32(0, ctl->cmd);
+			return true;
+		}
+		udelay(1);
+	}
+
+	return false;
+}
+
+static void xgene_enet_wr_mac(struct xgene_enet_pdata *p,
+			      u32 wr_addr, u32 wr_data)
+{
+	struct xgene_indirect_ctl ctl = {
+		.addr = p->mcx_mac_addr + MAC_ADDR_REG_OFFSET,
+		.ctl = p->mcx_mac_addr + MAC_WRITE_REG_OFFSET,
+		.cmd = p->mcx_mac_addr + MAC_COMMAND_REG_OFFSET,
+		.cmd_done = p->mcx_mac_addr + MAC_COMMAND_DONE_REG_OFFSET
+	};
+
+	if (!xgene_enet_wr_indirect(&ctl, wr_addr, wr_data))
+		netdev_err(p->ndev, "mac write failed, addr: %04x\n", wr_addr);
+}
+
+static u32 xgene_enet_rd_csr(struct xgene_enet_pdata *p, u32 offset)
+{
+	return ioread32(p->eth_csr_addr + offset);
+}
+
+static u32 xgene_enet_rd_diag_csr(struct xgene_enet_pdata *p, u32 offset)
+{
+	return ioread32(p->eth_diag_csr_addr + offset);
+}
+
+static u32 xgene_enet_rd_indirect(struct xgene_indirect_ctl *ctl, u32 rd_addr)
+{
+	u32 rd_data;
+	int i;
+
+	iowrite32(rd_addr, ctl->addr);
+	iowrite32(XGENE_ENET_RD_CMD, ctl->cmd);
+
+	/* wait for read command to complete */
+	for (i = 0; i < 10; i++) {
+		if (ioread32(ctl->cmd_done)) {
+			rd_data = ioread32(ctl->ctl);
+			iowrite32(0, ctl->cmd);
+
+			return rd_data;
+		}
+		udelay(1);
+	}
+
+	pr_err("%s: mac read failed, addr: %04x\n", __func__, rd_addr);
+
+	return 0;
+}
+
+static u32 xgene_enet_rd_mac(struct xgene_enet_pdata *p, u32 rd_addr)
+{
+	struct xgene_indirect_ctl ctl = {
+		.addr = p->mcx_mac_addr + MAC_ADDR_REG_OFFSET,
+		.ctl = p->mcx_mac_addr + MAC_READ_REG_OFFSET,
+		.cmd = p->mcx_mac_addr + MAC_COMMAND_REG_OFFSET,
+		.cmd_done = p->mcx_mac_addr + MAC_COMMAND_DONE_REG_OFFSET
+	};
+
+	return xgene_enet_rd_indirect(&ctl, rd_addr);
+}
+
+static int xgene_enet_ecc_init(struct xgene_enet_pdata *p)
+{
+	struct net_device *ndev = p->ndev;
+	u32 data;
+	int i;
+
+	xgene_enet_wr_diag_csr(p, ENET_CFG_MEM_RAM_SHUTDOWN_ADDR, 0);
+	for (i = 0; i < 10 && data != ~0U ; i++) {
+		usleep_range(100, 110);
+		data = xgene_enet_rd_diag_csr(p, ENET_BLOCK_MEM_RDY_ADDR);
+	}
+
+	if (data != ~0U) {
+		netdev_err(ndev, "Failed to release memory from shutdown\n");
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
+static void xgene_enet_config_ring_if_assoc(struct xgene_enet_pdata *p)
+{
+	u32 val = 0xffffffff;
+
+	xgene_enet_wr_ring_if(p, ENET_CFGSSQMIWQASSOC_ADDR, val);
+	xgene_enet_wr_ring_if(p, ENET_CFGSSQMIFPQASSOC_ADDR, val);
+}
+
+static void xgene_mii_phy_write(struct xgene_enet_pdata *p, u8 phy_id,
+				u32 reg, u16 data)
+{
+	u32 addr, wr_data, done;
+	int i;
+
+	addr = PHY_ADDR(phy_id) | REG_ADDR(reg);
+	xgene_enet_wr_mac(p, MII_MGMT_ADDRESS_ADDR, addr);
+
+	wr_data = PHY_CONTROL(data);
+	xgene_enet_wr_mac(p, MII_MGMT_CONTROL_ADDR, wr_data);
+
+	for (i = 0; i < 10; i++) {
+		done = xgene_enet_rd_mac(p, MII_MGMT_INDICATORS_ADDR);
+		if (!(done & BUSY_MASK))
+			return;
+		usleep_range(10, 20);
+	}
+
+	netdev_err(p->ndev, "MII_MGMT write failed\n");
+}
+
+static u32 xgene_mii_phy_read(struct xgene_enet_pdata *p, u8 phy_id, u32 reg)
+{
+	u32 addr, data, done;
+	int i;
+
+	addr = PHY_ADDR(phy_id) | REG_ADDR(reg);
+	xgene_enet_wr_mac(p, MII_MGMT_ADDRESS_ADDR, addr);
+	xgene_enet_wr_mac(p, MII_MGMT_COMMAND_ADDR, READ_CYCLE_MASK);
+
+	for (i = 0; i < 10; i++) {
+		done = xgene_enet_rd_mac(p, MII_MGMT_INDICATORS_ADDR);
+		if (!(done & BUSY_MASK)) {
+			data = xgene_enet_rd_mac(p, MII_MGMT_STATUS_ADDR);
+			xgene_enet_wr_mac(p, MII_MGMT_COMMAND_ADDR, 0);
+
+			return data;
+		}
+		usleep_range(10, 20);
+	}
+
+	netdev_err(p->ndev, "MII_MGMT read failed\n");
+
+	return 0;
+}
+
+static void xgene_sgmac_reset(struct xgene_enet_pdata *p)
+{
+	xgene_enet_wr_mac(p, MAC_CONFIG_1_ADDR, SOFT_RESET1);
+	xgene_enet_wr_mac(p, MAC_CONFIG_1_ADDR, 0);
+}
+
+static void xgene_sgmac_set_mac_addr(struct xgene_enet_pdata *p)
+{
+	u32 addr0, addr1;
+	u8 *dev_addr = p->ndev->dev_addr;
+
+	addr0 = (dev_addr[3] << 24) | (dev_addr[2] << 16) |
+		(dev_addr[1] << 8) | dev_addr[0];
+	xgene_enet_wr_mac(p, STATION_ADDR0_ADDR, addr0);
+
+	addr1 = xgene_enet_rd_mac(p, STATION_ADDR1_ADDR);
+	addr1 |= (dev_addr[5] << 24) | (dev_addr[4] << 16);
+	xgene_enet_wr_mac(p, STATION_ADDR1_ADDR, addr1);
+}
+
+static u32 xgene_enet_link_status(struct xgene_enet_pdata *p)
+{
+	u32 data;
+
+	data = xgene_mii_phy_read(p, INT_PHY_ADDR,
+				  SGMII_BASE_PAGE_ABILITY_ADDR >> 2);
+
+	return data & LINK_UP;
+}
+
+static void xgene_sgmac_init(struct xgene_enet_pdata *p)
+{
+	u32 data, loop = 10;
+
+	xgene_sgmac_reset(p);
+
+	/* Enable auto-negotiation */
+	xgene_mii_phy_write(p, INT_PHY_ADDR, SGMII_CONTROL_ADDR >> 2, 0x1000);
+	xgene_mii_phy_write(p, INT_PHY_ADDR, SGMII_TBI_CONTROL_ADDR >> 2, 0);
+
+	while (loop--) {
+		data = xgene_mii_phy_read(p, INT_PHY_ADDR,
+					  SGMII_STATUS_ADDR >> 2);
+		if ((data & AUTO_NEG_COMPLETE) && (data & LINK_STATUS))
+			break;
+		usleep_range(10, 20);
+	}
+	if (!(data & AUTO_NEG_COMPLETE) || !(data & LINK_STATUS))
+		netdev_err(p->ndev, "Auto-negotiation failed\n");
+
+	data = xgene_enet_rd_mac(p, MAC_CONFIG_2_ADDR);
+	ENET_INTERFACE_MODE2_SET(&data, 2);
+	xgene_enet_wr_mac(p, MAC_CONFIG_2_ADDR, data | FULL_DUPLEX2);
+	xgene_enet_wr_mac(p, INTERFACE_CONTROL_ADDR, ENET_GHD_MODE);
+
+	data = xgene_enet_rd_csr(p, ENET_SPARE_CFG_REG_ADDR);
+	data |= MPA_IDLE_WITH_QMI_EMPTY;
+	xgene_enet_wr_csr(p, ENET_SPARE_CFG_REG_ADDR, data);
+
+	xgene_sgmac_set_mac_addr(p);
+
+	data = xgene_enet_rd_csr(p, DEBUG_REG_ADDR);
+	data |= CFG_BYPASS_UNISEC_TX | CFG_BYPASS_UNISEC_RX;
+	xgene_enet_wr_csr(p, DEBUG_REG_ADDR, data);
+
+	/* Adjust MDC clock frequency */
+	data = xgene_enet_rd_mac(p, MII_MGMT_CONFIG_ADDR);
+	MGMT_CLOCK_SEL_SET(&data, 7);
+	xgene_enet_wr_mac(p, MII_MGMT_CONFIG_ADDR, data);
+
+	/* Enable drop if bufpool not available */
+	data = xgene_enet_rd_csr(p, RSIF_CONFIG_REG_ADDR);
+	data |= CFG_RSIF_FPBUFF_TIMEOUT_EN;
+	xgene_enet_wr_csr(p, RSIF_CONFIG_REG_ADDR, data);
+
+	/* Rtype should be copied from FP */
+	xgene_enet_wr_csr(p, RSIF_RAM_DBG_REG0_ADDR, 0);
+
+	/* Bypass traffic gating */
+	xgene_enet_wr_csr(p, CFG_LINK_AGGR_RESUME_0_ADDR, TX_PORT0);
+	xgene_enet_wr_csr(p, CFG_BYPASS_ADDR, RESUME_TX);
+	xgene_enet_wr_csr(p, SG_RX_DV_GATE_REG_0_ADDR, RESUME_RX0);
+}
+
+static void xgene_sgmac_rxtx(struct xgene_enet_pdata *p, u32 bits, bool set)
+{
+	u32 data;
+
+	data = xgene_enet_rd_mac(p, MAC_CONFIG_1_ADDR);
+
+	if (set)
+		data |= bits;
+	else
+		data &= ~bits;
+
+	xgene_enet_wr_mac(p, MAC_CONFIG_1_ADDR, data);
+}
+
+static void xgene_sgmac_rx_enable(struct xgene_enet_pdata *p)
+{
+	xgene_sgmac_rxtx(p, RX_EN, true);
+}
+
+static void xgene_sgmac_tx_enable(struct xgene_enet_pdata *p)
+{
+	xgene_sgmac_rxtx(p, TX_EN, true);
+}
+
+static void xgene_sgmac_rx_disable(struct xgene_enet_pdata *p)
+{
+	xgene_sgmac_rxtx(p, RX_EN, false);
+}
+
+static void xgene_sgmac_tx_disable(struct xgene_enet_pdata *p)
+{
+	xgene_sgmac_rxtx(p, TX_EN, false);
+}
+
+static void xgene_enet_reset(struct xgene_enet_pdata *p)
+{
+	clk_prepare_enable(p->clk);
+	clk_disable_unprepare(p->clk);
+	clk_prepare_enable(p->clk);
+
+	xgene_enet_ecc_init(p);
+	xgene_enet_config_ring_if_assoc(p);
+}
+
+static void xgene_enet_cle_bypass(struct xgene_enet_pdata *p,
+				  u32 dst_ring_num, u16 bufpool_id)
+{
+	u32 data, fpsel;
+
+	data = CFG_CLE_BYPASS_EN0;
+	xgene_enet_wr_csr(p, CLE_BYPASS_REG0_0_ADDR, data);
+
+	fpsel = xgene_enet_ring_bufnum(bufpool_id) - 0x20;
+	data = CFG_CLE_DSTQID0(dst_ring_num) | CFG_CLE_FPSEL0(fpsel);
+	xgene_enet_wr_csr(p, CLE_BYPASS_REG1_0_ADDR, data);
+}
+
+static void xgene_enet_shutdown(struct xgene_enet_pdata *p)
+{
+	clk_disable_unprepare(p->clk);
+}
+
+static void xgene_enet_link_state(struct work_struct *work)
+{
+	struct xgene_enet_pdata *p = container_of(to_delayed_work(work),
+				     struct xgene_enet_pdata, link_work);
+	struct net_device *ndev = p->ndev;
+	u32 link, poll_interval;
+
+	link = xgene_enet_link_status(p);
+	if (link) {
+		if (!netif_carrier_ok(ndev)) {
+			netif_carrier_on(ndev);
+			xgene_sgmac_init(p);
+			xgene_sgmac_rx_enable(p);
+			xgene_sgmac_tx_enable(p);
+			netdev_info(ndev, "Link is Up - 1Gbps\n");
+		}
+		poll_interval = PHY_POLL_LINK_ON;
+	} else {
+		if (netif_carrier_ok(ndev)) {
+			xgene_sgmac_rx_disable(p);
+			xgene_sgmac_tx_disable(p);
+			netif_carrier_off(ndev);
+			netdev_info(ndev, "Link is Down\n");
+		}
+		poll_interval = PHY_POLL_LINK_OFF;
+	}
+
+	schedule_delayed_work(&p->link_work, poll_interval);
+}
+
+struct xgene_mac_ops xgene_sgmac_ops = {
+	.init		= xgene_sgmac_init,
+	.reset		= xgene_sgmac_reset,
+	.rx_enable	= xgene_sgmac_rx_enable,
+	.tx_enable	= xgene_sgmac_tx_enable,
+	.rx_disable	= xgene_sgmac_rx_disable,
+	.tx_disable	= xgene_sgmac_tx_disable,
+	.set_mac_addr	= xgene_sgmac_set_mac_addr,
+	.link_state	= xgene_enet_link_state
+};
+
+struct xgene_port_ops xgene_sgport_ops = {
+	.reset		= xgene_enet_reset,
+	.cle_bypass	= xgene_enet_cle_bypass,
+	.shutdown	= xgene_enet_shutdown
+};
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.h b/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.h
new file mode 100644
index 000000000000..de432465009c
--- /dev/null
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.h
@@ -0,0 +1,41 @@
+/* Applied Micro X-Gene SoC Ethernet Driver
+ *
+ * Copyright (c) 2014, Applied Micro Circuits Corporation
+ * Authors: Iyappan Subramanian <isubramanian@apm.com>
+ *	    Keyur Chudgar <kchudgar@apm.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __XGENE_ENET_SGMAC_H__
+#define __XGENE_ENET_SGMAC_H__
+
+#define PHY_ADDR(src)		(((src)<<8) & GENMASK(12, 8))
+#define REG_ADDR(src)		((src) & GENMASK(4, 0))
+#define PHY_CONTROL(src)	((src) & GENMASK(15, 0))
+#define INT_PHY_ADDR			0x1e
+#define SGMII_TBI_CONTROL_ADDR		0x44
+#define SGMII_CONTROL_ADDR		0x00
+#define SGMII_STATUS_ADDR		0x04
+#define SGMII_BASE_PAGE_ABILITY_ADDR	0x14
+#define AUTO_NEG_COMPLETE		BIT(5)
+#define LINK_STATUS			BIT(2)
+#define LINK_UP				BIT(15)
+#define MPA_IDLE_WITH_QMI_EMPTY		BIT(12)
+#define SG_RX_DV_GATE_REG_0_ADDR	0x0dfc
+
+extern struct xgene_mac_ops xgene_sgmac_ops;
+extern struct xgene_port_ops xgene_sgport_ops;
+
+#endif  /* __XGENE_ENET_SGMAC_H__ */
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c b/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c
index cd64b9f18b58..67d07206b3c7 100644
--- a/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c
@@ -284,7 +284,7 @@ static void xgene_enet_shutdown(struct xgene_enet_pdata *pdata)
 	clk_disable_unprepare(pdata->clk);
 }
 
-void xgene_enet_link_state(struct work_struct *work)
+static void xgene_enet_link_state(struct work_struct *work)
 {
 	struct xgene_enet_pdata *pdata = container_of(to_delayed_work(work),
 					 struct xgene_enet_pdata, link_work);
@@ -322,6 +322,7 @@ struct xgene_mac_ops xgene_xgmac_ops = {
 	.rx_disable = xgene_xgmac_rx_disable,
 	.tx_disable = xgene_xgmac_tx_disable,
 	.set_mac_addr = xgene_xgmac_set_mac_addr,
+	.link_state = xgene_enet_link_state
 };
 
 struct xgene_port_ops xgene_xgport_ops = {
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.h b/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.h
index d2d59e7ed9ab..5a5296a6d1df 100644
--- a/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.h
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.h
@@ -47,10 +47,6 @@
 #define XG_ENET_SPARE_CFG_REG_1_ADDR	0x0410
 #define XGENET_RX_DV_GATE_REG_0_ADDR	0x0804
 
-#define PHY_POLL_LINK_ON	(10 * HZ)
-#define PHY_POLL_LINK_OFF	(PHY_POLL_LINK_ON / 5)
-
-void xgene_enet_link_state(struct work_struct *work);
 extern struct xgene_mac_ops xgene_xgmac_ops;
 extern struct xgene_port_ops xgene_xgport_ops;
 
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index ba499489969a..dbb41c1923e6 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -8099,9 +8099,6 @@ static netdev_tx_t tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	/* Sync BD data before updating mailbox */
 	wmb();
 
-	/* Packets are ready, update Tx producer idx local and on card. */
-	tw32_tx_mbox(tnapi->prodmbox, entry);
-
 	tnapi->tx_prod = entry;
 	if (unlikely(tg3_tx_avail(tnapi) <= (MAX_SKB_FRAGS + 1))) {
 		netif_tx_stop_queue(txq);
@@ -8116,7 +8113,12 @@ static netdev_tx_t tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
 			netif_tx_wake_queue(txq);
 	}
 
-	mmiowb();
+	if (!skb->xmit_more || netif_xmit_stopped(txq)) {
+		/* Packets are ready, update Tx producer idx on card. */
+		tw32_tx_mbox(tnapi->prodmbox, entry);
+		mmiowb();
+	}
+
 	return NETDEV_TX_OK;
 
 dma_error:
diff --git a/drivers/net/ethernet/brocade/bna/bnad.c b/drivers/net/ethernet/brocade/bna/bnad.c
index 153cafac323c..c3861de9dc81 100644
--- a/drivers/net/ethernet/brocade/bna/bnad.c
+++ b/drivers/net/ethernet/brocade/bna/bnad.c
@@ -552,6 +552,7 @@ bnad_cq_setup_skb_frags(struct bna_rcb *rcb, struct sk_buff *skb,
 
 		len = (vec == nvecs) ?
 			last_fraglen : unmap->vector.len;
+		skb->truesize += unmap->vector.len;
 		totlen += len;
 
 		skb_fill_page_desc(skb, skb_shinfo(skb)->nr_frags,
@@ -563,7 +564,6 @@ bnad_cq_setup_skb_frags(struct bna_rcb *rcb, struct sk_buff *skb,
 
 	skb->len += totlen;
 	skb->data_len += totlen;
-	skb->truesize += totlen;
 }
 
 static inline void
diff --git a/drivers/net/ethernet/chelsio/Kconfig b/drivers/net/ethernet/chelsio/Kconfig
index c3ce9df0041a..ac6473f75eb9 100644
--- a/drivers/net/ethernet/chelsio/Kconfig
+++ b/drivers/net/ethernet/chelsio/Kconfig
@@ -68,7 +68,7 @@ config CHELSIO_T3
 
 config CHELSIO_T4
 	tristate "Chelsio Communications T4/T5 Ethernet support"
-	depends on PCI
+	depends on PCI && (IPV6 || IPV6=n)
 	select FW_LOADER
 	select MDIO
 	---help---
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
index 410ed5805a9a..3c481b260745 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
@@ -986,6 +986,8 @@ static inline int t4_memory_write(struct adapter *adap, int mtype, u32 addr,
 int t4_seeprom_wp(struct adapter *adapter, bool enable);
 int get_vpd_params(struct adapter *adapter, struct vpd_params *p);
 int t4_load_fw(struct adapter *adapter, const u8 *fw_data, unsigned int size);
+int t4_fw_upgrade(struct adapter *adap, unsigned int mbox,
+		  const u8 *fw_data, unsigned int size, int force);
 unsigned int t4_flash_cfg_addr(struct adapter *adapter);
 int t4_get_fw_version(struct adapter *adapter, u32 *vers);
 int t4_get_tp_version(struct adapter *adapter, u32 *vers);
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index 5b38e955af6e..3f60070f2519 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -2929,16 +2929,26 @@ static int set_flash(struct net_device *netdev, struct ethtool_flash *ef)
 	int ret;
 	const struct firmware *fw;
 	struct adapter *adap = netdev2adap(netdev);
+	unsigned int mbox = FW_PCIE_FW_MASTER_MASK + 1;
 
 	ef->data[sizeof(ef->data) - 1] = '\0';
 	ret = request_firmware(&fw, ef->data, adap->pdev_dev);
 	if (ret < 0)
 		return ret;
 
-	ret = t4_load_fw(adap, fw->data, fw->size);
+	/* If the adapter has been fully initialized then we'll go ahead and
+	 * try to get the firmware's cooperation in upgrading to the new
+	 * firmware image otherwise we'll try to do the entire job from the
+	 * host ... and we always "force" the operation in this path.
+	 */
+	if (adap->flags & FULL_INIT_DONE)
+		mbox = adap->mbox;
+
+	ret = t4_fw_upgrade(adap, mbox, fw->data, fw->size, 1);
 	release_firmware(fw);
 	if (!ret)
-		dev_info(adap->pdev_dev, "loaded firmware %s\n", ef->data);
+		dev_info(adap->pdev_dev, "loaded firmware %s,"
+			 " reload cxgb4 driver\n", ef->data);
 	return ret;
 }
 
@@ -4359,6 +4369,7 @@ EXPORT_SYMBOL(cxgb4_unregister_uld);
  * success (true) if it belongs otherwise failure (false).
  * Called with rcu_read_lock() held.
  */
+#if IS_ENABLED(CONFIG_IPV6)
 static bool cxgb4_netdev(const struct net_device *netdev)
 {
 	struct adapter *adap;
@@ -4480,6 +4491,13 @@ static int update_root_dev_clip(struct net_device *dev)
 		return ret;
 
 	/* Parse all bond and vlan devices layered on top of the physical dev */
+	root_dev = netdev_master_upper_dev_get_rcu(dev);
+	if (root_dev) {
+		ret = update_dev_clip(root_dev, dev);
+		if (ret)
+			return ret;
+	}
+
 	for (i = 0; i < VLAN_N_VID; i++) {
 		root_dev = __vlan_find_dev_deep_rcu(dev, htons(ETH_P_8021Q), i);
 		if (!root_dev)
@@ -4512,6 +4530,7 @@ static void update_clip(const struct adapter *adap)
 	}
 	rcu_read_unlock();
 }
+#endif /* IS_ENABLED(CONFIG_IPV6) */
 
 /**
  *	cxgb_up - enable the adapter
@@ -4558,7 +4577,9 @@ static int cxgb_up(struct adapter *adap)
 	t4_intr_enable(adap);
 	adap->flags |= FULL_INIT_DONE;
 	notify_ulds(adap, CXGB4_STATE_UP);
+#if IS_ENABLED(CONFIG_IPV6)
 	update_clip(adap);
+#endif
  out:
 	return err;
  irq_err:
@@ -6852,14 +6873,18 @@ static int __init cxgb4_init_module(void)
 	if (ret < 0)
 		debugfs_remove(cxgb4_debugfs_root);
 
+#if IS_ENABLED(CONFIG_IPV6)
 	register_inet6addr_notifier(&cxgb4_inet6addr_notifier);
+#endif
 
 	return ret;
 }
 
 static void __exit cxgb4_cleanup_module(void)
 {
+#if IS_ENABLED(CONFIG_IPV6)
 	unregister_inet6addr_notifier(&cxgb4_inet6addr_notifier);
+#endif
 	pci_unregister_driver(&cxgb4_driver);
 	debugfs_remove(cxgb4_debugfs_root);  /* NULL ok */
 }
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index 1fff1495fe31..a9d9d74e4f09 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -37,8 +37,6 @@
 #include "t4_regs.h"
 #include "t4fw_api.h"
 
-static int t4_fw_upgrade(struct adapter *adap, unsigned int mbox,
-			 const u8 *fw_data, unsigned int size, int force);
 /**
  *	t4_wait_op_done_val - wait until an operation is completed
  *	@adapter: the adapter performing the operation
@@ -3076,8 +3074,8 @@ static int t4_fw_restart(struct adapter *adap, unsigned int mbox, int reset)
  *	positive errno indicates that the adapter is ~probably~ intact, a
  *	negative errno indicates that things are looking bad ...
  */
-static int t4_fw_upgrade(struct adapter *adap, unsigned int mbox,
-			 const u8 *fw_data, unsigned int size, int force)
+int t4_fw_upgrade(struct adapter *adap, unsigned int mbox,
+		  const u8 *fw_data, unsigned int size, int force)
 {
 	const struct fw_hdr *fw_hdr = (const struct fw_hdr *)fw_data;
 	int reset, ret;
diff --git a/drivers/net/ethernet/freescale/fec.h b/drivers/net/ethernet/freescale/fec.h
index 1d5e1822bb2c..9af296a1ca99 100644
--- a/drivers/net/ethernet/freescale/fec.h
+++ b/drivers/net/ethernet/freescale/fec.h
@@ -367,6 +367,56 @@ struct bufdesc_ex {
 #define FEC_VLAN_TAG_LEN       0x04
 #define FEC_ETHTYPE_LEN                0x02
 
+/* Controller is ENET-MAC */
+#define FEC_QUIRK_ENET_MAC		(1 << 0)
+/* Controller needs driver to swap frame */
+#define FEC_QUIRK_SWAP_FRAME		(1 << 1)
+/* Controller uses gasket */
+#define FEC_QUIRK_USE_GASKET		(1 << 2)
+/* Controller has GBIT support */
+#define FEC_QUIRK_HAS_GBIT		(1 << 3)
+/* Controller has extend desc buffer */
+#define FEC_QUIRK_HAS_BUFDESC_EX	(1 << 4)
+/* Controller has hardware checksum support */
+#define FEC_QUIRK_HAS_CSUM		(1 << 5)
+/* Controller has hardware vlan support */
+#define FEC_QUIRK_HAS_VLAN		(1 << 6)
+/* ENET IP errata ERR006358
+ *
+ * If the ready bit in the transmit buffer descriptor (TxBD[R]) is previously
+ * detected as not set during a prior frame transmission, then the
+ * ENET_TDAR[TDAR] bit is cleared at a later time, even if additional TxBDs
+ * were added to the ring and the ENET_TDAR[TDAR] bit is set. This results in
+ * frames not being transmitted until there is a 0-to-1 transition on
+ * ENET_TDAR[TDAR].
+ */
+#define FEC_QUIRK_ERR006358            (1 << 7)
+/* ENET IP hw AVB
+ *
+ * i.MX6SX ENET IP add Audio Video Bridging (AVB) feature support.
+ * - Two class indicators on receive with configurable priority
+ * - Two class indicators and line speed timer on transmit allowing
+ *   implementation class credit based shapers externally
+ * - Additional DMA registers provisioned to allow managing up to 3
+ *   independent rings
+ */
+#define FEC_QUIRK_HAS_AVB		(1 << 8)
+/* There is a TDAR race condition for mutliQ when the software sets TDAR
+ * and the UDMA clears TDAR simultaneously or in a small window (2-4 cycles).
+ * This will cause the udma_tx and udma_tx_arbiter state machines to hang.
+ * The issue exist at i.MX6SX enet IP.
+ */
+#define FEC_QUIRK_ERR007885		(1 << 9)
+/* ENET Block Guide/ Chapter for the iMX6SX (PELE) address one issue:
+ * After set ENET_ATCR[Capture], there need some time cycles before the counter
+ * value is capture in the register clock domain.
+ * The wait-time-cycles is at least 6 clock cycles of the slower clock between
+ * the register clock and the 1588 clock. The 1588 ts_clk is fixed to 25Mhz,
+ * register clock is 66Mhz, so the wait-time-cycles must be greater than 240ns
+ * (40ns * 6).
+ */
+#define FEC_QUIRK_BUG_CAPTURE		(1 << 10)
+
 struct fec_enet_priv_tx_q {
 	int index;
 	unsigned char *tx_bounce[TX_RING_SIZE];
@@ -484,12 +534,22 @@ struct fec_enet_private {
 	unsigned int itr_clk_rate;
 
 	u32 rx_copybreak;
+
+	/* ptp clock period in ns*/
+	unsigned int ptp_inc;
+
+	/* pps  */
+	int pps_channel;
+	unsigned int reload_period;
+	int pps_enable;
+	unsigned int next_counter;
 };
 
 void fec_ptp_init(struct platform_device *pdev);
 void fec_ptp_start_cyclecounter(struct net_device *ndev);
 int fec_ptp_set(struct net_device *ndev, struct ifreq *ifr);
 int fec_ptp_get(struct net_device *ndev, struct ifreq *ifr);
+uint fec_ptp_check_pps_event(struct fec_enet_private *fep);
 
 /****************************************************************************/
 #endif /* FEC_H */
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 87975b5dda94..81b96cf87574 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -78,47 +78,6 @@ static void fec_enet_itr_coal_init(struct net_device *ndev);
 #define FEC_ENET_RAFL_V	0x8
 #define FEC_ENET_OPD_V	0xFFF0
 
-/* Controller is ENET-MAC */
-#define FEC_QUIRK_ENET_MAC		(1 << 0)
-/* Controller needs driver to swap frame */
-#define FEC_QUIRK_SWAP_FRAME		(1 << 1)
-/* Controller uses gasket */
-#define FEC_QUIRK_USE_GASKET		(1 << 2)
-/* Controller has GBIT support */
-#define FEC_QUIRK_HAS_GBIT		(1 << 3)
-/* Controller has extend desc buffer */
-#define FEC_QUIRK_HAS_BUFDESC_EX	(1 << 4)
-/* Controller has hardware checksum support */
-#define FEC_QUIRK_HAS_CSUM		(1 << 5)
-/* Controller has hardware vlan support */
-#define FEC_QUIRK_HAS_VLAN		(1 << 6)
-/* ENET IP errata ERR006358
- *
- * If the ready bit in the transmit buffer descriptor (TxBD[R]) is previously
- * detected as not set during a prior frame transmission, then the
- * ENET_TDAR[TDAR] bit is cleared at a later time, even if additional TxBDs
- * were added to the ring and the ENET_TDAR[TDAR] bit is set. This results in
- * frames not being transmitted until there is a 0-to-1 transition on
- * ENET_TDAR[TDAR].
- */
-#define FEC_QUIRK_ERR006358            (1 << 7)
-/* ENET IP hw AVB
- *
- * i.MX6SX ENET IP add Audio Video Bridging (AVB) feature support.
- * - Two class indicators on receive with configurable priority
- * - Two class indicators and line speed timer on transmit allowing
- *   implementation class credit based shapers externally
- * - Additional DMA registers provisioned to allow managing up to 3
- *   independent rings
- */
-#define FEC_QUIRK_HAS_AVB		(1 << 8)
-/* There is a TDAR race condition for mutliQ when the software sets TDAR
- * and the UDMA clears TDAR simultaneously or in a small window (2-4 cycles).
- * This will cause the udma_tx and udma_tx_arbiter state machines to hang.
- * The issue exist at i.MX6SX enet IP.
- */
-#define FEC_QUIRK_ERR007885		(1 << 9)
-
 static struct platform_device_id fec_devtype[] = {
 	{
 		/* keep it for coldfire */
@@ -146,7 +105,7 @@ static struct platform_device_id fec_devtype[] = {
 		.driver_data = FEC_QUIRK_ENET_MAC | FEC_QUIRK_HAS_GBIT |
 				FEC_QUIRK_HAS_BUFDESC_EX | FEC_QUIRK_HAS_CSUM |
 				FEC_QUIRK_HAS_VLAN | FEC_QUIRK_HAS_AVB |
-				FEC_QUIRK_ERR007885,
+				FEC_QUIRK_ERR007885 | FEC_QUIRK_BUG_CAPTURE,
 	}, {
 		/* sentinel */
 	}
@@ -1622,6 +1581,8 @@ fec_enet_interrupt(int irq, void *dev_id)
 		complete(&fep->mdio_done);
 	}
 
+	fec_ptp_check_pps_event(fep);
+
 	return ret;
 }
 
@@ -2912,20 +2873,12 @@ static void fec_poll_controller(struct net_device *dev)
 #endif
 
 #define FEATURES_NEED_QUIESCE NETIF_F_RXCSUM
-
-static int fec_set_features(struct net_device *netdev,
+static inline void fec_enet_set_netdev_features(struct net_device *netdev,
 	netdev_features_t features)
 {
 	struct fec_enet_private *fep = netdev_priv(netdev);
 	netdev_features_t changed = features ^ netdev->features;
 
-	/* Quiesce the device if necessary */
-	if (netif_running(netdev) && changed & FEATURES_NEED_QUIESCE) {
-		napi_disable(&fep->napi);
-		netif_tx_lock_bh(netdev);
-		fec_stop(netdev);
-	}
-
 	netdev->features = features;
 
 	/* Receive checksum has been changed */
@@ -2935,13 +2888,25 @@ static int fec_set_features(struct net_device *netdev,
 		else
 			fep->csum_flags &= ~FLAG_RX_CSUM_ENABLED;
 	}
+}
+
+static int fec_set_features(struct net_device *netdev,
+	netdev_features_t features)
+{
+	struct fec_enet_private *fep = netdev_priv(netdev);
+	netdev_features_t changed = features ^ netdev->features;
 
-	/* Resume the device after updates */
 	if (netif_running(netdev) && changed & FEATURES_NEED_QUIESCE) {
+		napi_disable(&fep->napi);
+		netif_tx_lock_bh(netdev);
+		fec_stop(netdev);
+		fec_enet_set_netdev_features(netdev, features);
 		fec_restart(netdev);
 		netif_tx_wake_all_queues(netdev);
 		netif_tx_unlock_bh(netdev);
 		napi_enable(&fep->napi);
+	} else {
+		fec_enet_set_netdev_features(netdev, features);
 	}
 
 	return 0;
diff --git a/drivers/net/ethernet/freescale/fec_ptp.c b/drivers/net/ethernet/freescale/fec_ptp.c
index cca3617a2321..992c8c3db553 100644
--- a/drivers/net/ethernet/freescale/fec_ptp.c
+++ b/drivers/net/ethernet/freescale/fec_ptp.c
@@ -61,6 +61,24 @@
 #define FEC_T_INC_CORR_MASK             0x00007f00
 #define FEC_T_INC_CORR_OFFSET           8
 
+#define FEC_T_CTRL_PINPER		0x00000080
+#define FEC_T_TF0_MASK			0x00000001
+#define FEC_T_TF0_OFFSET		0
+#define FEC_T_TF1_MASK			0x00000002
+#define FEC_T_TF1_OFFSET		1
+#define FEC_T_TF2_MASK			0x00000004
+#define FEC_T_TF2_OFFSET		2
+#define FEC_T_TF3_MASK			0x00000008
+#define FEC_T_TF3_OFFSET		3
+#define FEC_T_TDRE_MASK			0x00000001
+#define FEC_T_TDRE_OFFSET		0
+#define FEC_T_TMODE_MASK		0x0000003C
+#define FEC_T_TMODE_OFFSET		2
+#define FEC_T_TIE_MASK			0x00000040
+#define FEC_T_TIE_OFFSET		6
+#define FEC_T_TF_MASK			0x00000080
+#define FEC_T_TF_OFFSET			7
+
 #define FEC_ATIME_CTRL		0x400
 #define FEC_ATIME		0x404
 #define FEC_ATIME_EVT_OFFSET	0x408
@@ -69,7 +87,143 @@
 #define FEC_ATIME_INC		0x414
 #define FEC_TS_TIMESTAMP	0x418
 
+#define FEC_TGSR		0x604
+#define FEC_TCSR(n)		(0x608 + n * 0x08)
+#define FEC_TCCR(n)		(0x60C + n * 0x08)
+#define MAX_TIMER_CHANNEL	3
+#define FEC_TMODE_TOGGLE	0x05
+#define FEC_HIGH_PULSE		0x0F
+
 #define FEC_CC_MULT	(1 << 31)
+#define FEC_COUNTER_PERIOD	(1 << 31)
+#define PPS_OUPUT_RELOAD_PERIOD	NSEC_PER_SEC
+#define FEC_CHANNLE_0		0
+#define DEFAULT_PPS_CHANNEL	FEC_CHANNLE_0
+
+/**
+ * fec_ptp_enable_pps
+ * @fep: the fec_enet_private structure handle
+ * @enable: enable the channel pps output
+ *
+ * This function enble the PPS ouput on the timer channel.
+ */
+static int fec_ptp_enable_pps(struct fec_enet_private *fep, uint enable)
+{
+	unsigned long flags;
+	u32 val, tempval;
+	int inc;
+	struct timespec ts;
+	u64 ns;
+	u32 remainder;
+	val = 0;
+
+	if (!(fep->hwts_tx_en || fep->hwts_rx_en)) {
+		dev_err(&fep->pdev->dev, "No ptp stack is running\n");
+		return -EINVAL;
+	}
+
+	if (fep->pps_enable == enable)
+		return 0;
+
+	fep->pps_channel = DEFAULT_PPS_CHANNEL;
+	fep->reload_period = PPS_OUPUT_RELOAD_PERIOD;
+	inc = fep->ptp_inc;
+
+	spin_lock_irqsave(&fep->tmreg_lock, flags);
+
+	if (enable) {
+		/* clear capture or output compare interrupt status if have.
+		 */
+		writel(FEC_T_TF_MASK, fep->hwp + FEC_TCSR(fep->pps_channel));
+
+		/* It is recommended to doulbe check the TMODE field in the
+		 * TCSR register to be cleared before the first compare counter
+		 * is written into TCCR register. Just add a double check.
+		 */
+		val = readl(fep->hwp + FEC_TCSR(fep->pps_channel));
+		do {
+			val &= ~(FEC_T_TMODE_MASK);
+			writel(val, fep->hwp + FEC_TCSR(fep->pps_channel));
+			val = readl(fep->hwp + FEC_TCSR(fep->pps_channel));
+		} while (val & FEC_T_TMODE_MASK);
+
+		/* Dummy read counter to update the counter */
+		timecounter_read(&fep->tc);
+		/* We want to find the first compare event in the next
+		 * second point. So we need to know what the ptp time
+		 * is now and how many nanoseconds is ahead to get next second.
+		 * The remaining nanosecond ahead before the next second would be
+		 * NSEC_PER_SEC - ts.tv_nsec. Add the remaining nanoseconds
+		 * to current timer would be next second.
+		 */
+		tempval = readl(fep->hwp + FEC_ATIME_CTRL);
+		tempval |= FEC_T_CTRL_CAPTURE;
+		writel(tempval, fep->hwp + FEC_ATIME_CTRL);
+
+		tempval = readl(fep->hwp + FEC_ATIME);
+		/* Convert the ptp local counter to 1588 timestamp */
+		ns = timecounter_cyc2time(&fep->tc, tempval);
+		ts.tv_sec = div_u64_rem(ns, 1000000000ULL, &remainder);
+		ts.tv_nsec = remainder;
+
+		/* The tempval is  less than 3 seconds, and  so val is less than
+		 * 4 seconds. No overflow for 32bit calculation.
+		 */
+		val = NSEC_PER_SEC - (u32)ts.tv_nsec + tempval;
+
+		/* Need to consider the situation that the current time is
+		 * very close to the second point, which means NSEC_PER_SEC
+		 * - ts.tv_nsec is close to be zero(For example 20ns); Since the timer
+		 * is still running when we calculate the first compare event, it is
+		 * possible that the remaining nanoseonds run out before the compare
+		 * counter is calculated and written into TCCR register. To avoid
+		 * this possibility, we will set the compare event to be the next
+		 * of next second. The current setting is 31-bit timer and wrap
+		 * around over 2 seconds. So it is okay to set the next of next
+		 * seond for the timer.
+		 */
+		val += NSEC_PER_SEC;
+
+		/* We add (2 * NSEC_PER_SEC - (u32)ts.tv_nsec) to current
+		 * ptp counter, which maybe cause 32-bit wrap. Since the
+		 * (NSEC_PER_SEC - (u32)ts.tv_nsec) is less than 2 second.
+		 * We can ensure the wrap will not cause issue. If the offset
+		 * is bigger than fep->cc.mask would be a error.
+		 */
+		val &= fep->cc.mask;
+		writel(val, fep->hwp + FEC_TCCR(fep->pps_channel));
+
+		/* Calculate the second the compare event timestamp */
+		fep->next_counter = (val + fep->reload_period) & fep->cc.mask;
+
+		/* * Enable compare event when overflow */
+		val = readl(fep->hwp + FEC_ATIME_CTRL);
+		val |= FEC_T_CTRL_PINPER;
+		writel(val, fep->hwp + FEC_ATIME_CTRL);
+
+		/* Compare channel setting. */
+		val = readl(fep->hwp + FEC_TCSR(fep->pps_channel));
+		val |= (1 << FEC_T_TF_OFFSET | 1 << FEC_T_TIE_OFFSET);
+		val &= ~(1 << FEC_T_TDRE_OFFSET);
+		val &= ~(FEC_T_TMODE_MASK);
+		val |= (FEC_HIGH_PULSE << FEC_T_TMODE_OFFSET);
+		writel(val, fep->hwp + FEC_TCSR(fep->pps_channel));
+
+		/* Write the second compare event timestamp and calculate
+		 * the third timestamp. Refer the TCCR register detail in the spec.
+		 */
+		writel(fep->next_counter, fep->hwp + FEC_TCCR(fep->pps_channel));
+		fep->next_counter = (fep->next_counter + fep->reload_period) & fep->cc.mask;
+	} else {
+		writel(0, fep->hwp + FEC_TCSR(fep->pps_channel));
+	}
+
+	fep->pps_enable = enable;
+	spin_unlock_irqrestore(&fep->tmreg_lock, flags);
+
+	return 0;
+}
+
 /**
  * fec_ptp_read - read raw cycle counter (to be used by time counter)
  * @cc: the cyclecounter structure
@@ -82,12 +236,17 @@ static cycle_t fec_ptp_read(const struct cyclecounter *cc)
 {
 	struct fec_enet_private *fep =
 		container_of(cc, struct fec_enet_private, cc);
+	const struct platform_device_id *id_entry =
+		platform_get_device_id(fep->pdev);
 	u32 tempval;
 
 	tempval = readl(fep->hwp + FEC_ATIME_CTRL);
 	tempval |= FEC_T_CTRL_CAPTURE;
 	writel(tempval, fep->hwp + FEC_ATIME_CTRL);
 
+	if (id_entry->driver_data & FEC_QUIRK_BUG_CAPTURE)
+		udelay(1);
+
 	return readl(fep->hwp + FEC_ATIME);
 }
 
@@ -113,14 +272,15 @@ void fec_ptp_start_cyclecounter(struct net_device *ndev)
 	/* 1ns counter */
 	writel(inc << FEC_T_INC_OFFSET, fep->hwp + FEC_ATIME_INC);
 
-	/* use free running count */
-	writel(0, fep->hwp + FEC_ATIME_EVT_PERIOD);
+	/* use 31-bit timer counter */
+	writel(FEC_COUNTER_PERIOD, fep->hwp + FEC_ATIME_EVT_PERIOD);
 
-	writel(FEC_T_CTRL_ENABLE, fep->hwp + FEC_ATIME_CTRL);
+	writel(FEC_T_CTRL_ENABLE | FEC_T_CTRL_PERIOD_RST,
+		fep->hwp + FEC_ATIME_CTRL);
 
 	memset(&fep->cc, 0, sizeof(fep->cc));
 	fep->cc.read = fec_ptp_read;
-	fep->cc.mask = CLOCKSOURCE_MASK(32);
+	fep->cc.mask = CLOCKSOURCE_MASK(31);
 	fep->cc.shift = 31;
 	fep->cc.mult = FEC_CC_MULT;
 
@@ -143,32 +303,59 @@ void fec_ptp_start_cyclecounter(struct net_device *ndev)
  */
 static int fec_ptp_adjfreq(struct ptp_clock_info *ptp, s32 ppb)
 {
-	u64 diff;
 	unsigned long flags;
 	int neg_adj = 0;
-	u32 mult = FEC_CC_MULT;
+	u32 i, tmp;
+	u32 corr_inc, corr_period;
+	u32 corr_ns;
+	u64 lhs, rhs;
 
 	struct fec_enet_private *fep =
 	    container_of(ptp, struct fec_enet_private, ptp_caps);
 
+	if (ppb == 0)
+		return 0;
+
 	if (ppb < 0) {
 		ppb = -ppb;
 		neg_adj = 1;
 	}
 
-	diff = mult;
-	diff *= ppb;
-	diff = div_u64(diff, 1000000000ULL);
+	/* In theory, corr_inc/corr_period = ppb/NSEC_PER_SEC;
+	 * Try to find the corr_inc  between 1 to fep->ptp_inc to
+	 * meet adjustment requirement.
+	 */
+	lhs = NSEC_PER_SEC;
+	rhs = (u64)ppb * (u64)fep->ptp_inc;
+	for (i = 1; i <= fep->ptp_inc; i++) {
+		if (lhs >= rhs) {
+			corr_inc = i;
+			corr_period = div_u64(lhs, rhs);
+			break;
+		}
+		lhs += NSEC_PER_SEC;
+	}
+	/* Not found? Set it to high value - double speed
+	 * correct in every clock step.
+	 */
+	if (i > fep->ptp_inc) {
+		corr_inc = fep->ptp_inc;
+		corr_period = 1;
+	}
+
+	if (neg_adj)
+		corr_ns = fep->ptp_inc - corr_inc;
+	else
+		corr_ns = fep->ptp_inc + corr_inc;
 
 	spin_lock_irqsave(&fep->tmreg_lock, flags);
-	/*
-	 * dummy read to set cycle_last in tc to now.
-	 * So use adjusted mult to calculate when next call
-	 * timercounter_read.
-	 */
-	timecounter_read(&fep->tc);
 
-	fep->cc.mult = neg_adj ? mult - diff : mult + diff;
+	tmp = readl(fep->hwp + FEC_ATIME_INC) & FEC_T_INC_MASK;
+	tmp |= corr_ns << FEC_T_INC_CORR_OFFSET;
+	writel(tmp, fep->hwp + FEC_ATIME_INC);
+	writel(corr_period, fep->hwp + FEC_ATIME_CORR);
+	/* dummy read to update the timer. */
+	timecounter_read(&fep->tc);
 
 	spin_unlock_irqrestore(&fep->tmreg_lock, flags);
 
@@ -188,12 +375,19 @@ static int fec_ptp_adjtime(struct ptp_clock_info *ptp, s64 delta)
 	    container_of(ptp, struct fec_enet_private, ptp_caps);
 	unsigned long flags;
 	u64 now;
+	u32 counter;
 
 	spin_lock_irqsave(&fep->tmreg_lock, flags);
 
 	now = timecounter_read(&fep->tc);
 	now += delta;
 
+	/* Get the timer value based on adjusted timestamp.
+	 * Update the counter with the masked value.
+	 */
+	counter = now & fep->cc.mask;
+	writel(counter, fep->hwp + FEC_ATIME);
+
 	/* reset the timecounter */
 	timecounter_init(&fep->tc, &fep->cc, now);
 
@@ -244,6 +438,7 @@ static int fec_ptp_settime(struct ptp_clock_info *ptp,
 
 	u64 ns;
 	unsigned long flags;
+	u32 counter;
 
 	mutex_lock(&fep->ptp_clk_mutex);
 	/* Check the ptp clock */
@@ -254,8 +449,13 @@ static int fec_ptp_settime(struct ptp_clock_info *ptp,
 
 	ns = ts->tv_sec * 1000000000ULL;
 	ns += ts->tv_nsec;
+	/* Get the timer value based on timestamp.
+	 * Update the counter with the masked value.
+	 */
+	counter = ns & fep->cc.mask;
 
 	spin_lock_irqsave(&fep->tmreg_lock, flags);
+	writel(counter, fep->hwp + FEC_ATIME);
 	timecounter_init(&fep->tc, &fep->cc, ns);
 	spin_unlock_irqrestore(&fep->tmreg_lock, flags);
 	mutex_unlock(&fep->ptp_clk_mutex);
@@ -272,6 +472,15 @@ static int fec_ptp_settime(struct ptp_clock_info *ptp,
 static int fec_ptp_enable(struct ptp_clock_info *ptp,
 			  struct ptp_clock_request *rq, int on)
 {
+	struct fec_enet_private *fep =
+	    container_of(ptp, struct fec_enet_private, ptp_caps);
+	int ret = 0;
+
+	if (rq->type == PTP_CLK_REQ_PPS) {
+		ret = fec_ptp_enable_pps(fep, on);
+
+		return ret;
+	}
 	return -EOPNOTSUPP;
 }
 
@@ -386,7 +595,7 @@ void fec_ptp_init(struct platform_device *pdev)
 	fep->ptp_caps.n_ext_ts = 0;
 	fep->ptp_caps.n_per_out = 0;
 	fep->ptp_caps.n_pins = 0;
-	fep->ptp_caps.pps = 0;
+	fep->ptp_caps.pps = 1;
 	fep->ptp_caps.adjfreq = fec_ptp_adjfreq;
 	fep->ptp_caps.adjtime = fec_ptp_adjtime;
 	fep->ptp_caps.gettime = fec_ptp_gettime;
@@ -394,6 +603,7 @@ void fec_ptp_init(struct platform_device *pdev)
 	fep->ptp_caps.enable = fec_ptp_enable;
 
 	fep->cycle_speed = clk_get_rate(fep->clk_ptp);
+	fep->ptp_inc = NSEC_PER_SEC / fep->cycle_speed;
 
 	spin_lock_init(&fep->tmreg_lock);
 
@@ -409,3 +619,36 @@ void fec_ptp_init(struct platform_device *pdev)
 
 	schedule_delayed_work(&fep->time_keep, HZ);
 }
+
+/**
+ * fec_ptp_check_pps_event
+ * @fep: the fec_enet_private structure handle
+ *
+ * This function check the pps event and reload the timer compare counter.
+ */
+uint fec_ptp_check_pps_event(struct fec_enet_private *fep)
+{
+	u32 val;
+	u8 channel = fep->pps_channel;
+	struct ptp_clock_event event;
+
+	val = readl(fep->hwp + FEC_TCSR(channel));
+	if (val & FEC_T_TF_MASK) {
+		/* Write the next next compare(not the next according the spec)
+		 * value to the register
+		 */
+		writel(fep->next_counter, fep->hwp + FEC_TCCR(channel));
+		do {
+			writel(val, fep->hwp + FEC_TCSR(channel));
+		} while (readl(fep->hwp + FEC_TCSR(channel)) & FEC_T_TF_MASK);
+
+		/* Update the counter; */
+		fep->next_counter = (fep->next_counter + fep->reload_period) & fep->cc.mask;
+
+		event.type = PTP_CLOCK_PPS;
+		ptp_clock_event(fep->ptp_clock, &event);
+		return 1;
+	}
+
+	return 0;
+}
diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c
index 379b1a578d3d..4fdf0aa16978 100644
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -338,7 +338,7 @@ static void gfar_init_tx_rx_base(struct gfar_private *priv)
 
 static void gfar_rx_buff_size_config(struct gfar_private *priv)
 {
-	int frame_size = priv->ndev->mtu + ETH_HLEN;
+	int frame_size = priv->ndev->mtu + ETH_HLEN + ETH_FCS_LEN;
 
 	/* set this when rx hw offload (TOE) functions are being used */
 	priv->uses_rxfcb = 0;
diff --git a/drivers/net/ethernet/intel/Kconfig b/drivers/net/ethernet/intel/Kconfig
index 6919adb66f53..5b8300a32bf5 100644
--- a/drivers/net/ethernet/intel/Kconfig
+++ b/drivers/net/ethernet/intel/Kconfig
@@ -320,4 +320,15 @@ config FM10K
 	  To compile this driver as a module, choose M here. The module
 	  will be called fm10k.  MSI-X interrupt support is required
 
+config FM10K_VXLAN
+	bool "Virtual eXtensible Local Area Network Support"
+	default n
+	depends on FM10K && VXLAN && !(FM10K=y && VXLAN=m)
+	---help---
+	  This allows one to create VXLAN virtual interfaces that provide
+	  Layer 2 Networks over Layer 3 Networks. VXLAN is often used
+	  to tunnel virtual network infrastructure in virtualized environments.
+	  Say Y here if you want to use Virtual eXtensible Local Area Network
+	  (VXLAN) in the driver.
+
 endif # NET_VENDOR_INTEL
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_main.c b/drivers/net/ethernet/intel/fm10k/fm10k_main.c
index 9d7118a0d67a..e645af412e76 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_main.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_main.c
@@ -929,6 +929,30 @@ static bool fm10k_tx_desc_push(struct fm10k_ring *tx_ring,
 	return i == tx_ring->count;
 }
 
+static int __fm10k_maybe_stop_tx(struct fm10k_ring *tx_ring, u16 size)
+{
+	netif_stop_subqueue(tx_ring->netdev, tx_ring->queue_index);
+
+	smp_mb();
+
+	/* We need to check again in a case another CPU has just
+	 * made room available. */
+	if (likely(fm10k_desc_unused(tx_ring) < size))
+		return -EBUSY;
+
+	/* A reprieve! - use start_queue because it doesn't call schedule */
+	netif_start_subqueue(tx_ring->netdev, tx_ring->queue_index);
+	++tx_ring->tx_stats.restart_queue;
+	return 0;
+}
+
+static inline int fm10k_maybe_stop_tx(struct fm10k_ring *tx_ring, u16 size)
+{
+	if (likely(fm10k_desc_unused(tx_ring) >= size))
+		return 0;
+	return __fm10k_maybe_stop_tx(tx_ring, size);
+}
+
 static void fm10k_tx_map(struct fm10k_ring *tx_ring,
 			 struct fm10k_tx_buffer *first)
 {
@@ -1022,13 +1046,18 @@ static void fm10k_tx_map(struct fm10k_ring *tx_ring,
 
 	tx_ring->next_to_use = i;
 
+	/* Make sure there is space in the ring for the next send. */
+	fm10k_maybe_stop_tx(tx_ring, DESC_NEEDED);
+
 	/* notify HW of packet */
-	writel(i, tx_ring->tail);
+	if (netif_xmit_stopped(txring_txq(tx_ring)) || !skb->xmit_more) {
+		writel(i, tx_ring->tail);
 
-	/* we need this if more than one processor can write to our tail
-	 * at a time, it synchronizes IO on IA64/Altix systems
-	 */
-	mmiowb();
+		/* we need this if more than one processor can write to our tail
+		 * at a time, it synchronizes IO on IA64/Altix systems
+		 */
+		mmiowb();
+	}
 
 	return;
 dma_error:
@@ -1048,30 +1077,6 @@ dma_error:
 	tx_ring->next_to_use = i;
 }
 
-static int __fm10k_maybe_stop_tx(struct fm10k_ring *tx_ring, u16 size)
-{
-	netif_stop_subqueue(tx_ring->netdev, tx_ring->queue_index);
-
-	smp_mb();
-
-	/* We need to check again in a case another CPU has just
-	 * made room available. */
-	if (likely(fm10k_desc_unused(tx_ring) < size))
-		return -EBUSY;
-
-	/* A reprieve! - use start_queue because it doesn't call schedule */
-	netif_start_subqueue(tx_ring->netdev, tx_ring->queue_index);
-	++tx_ring->tx_stats.restart_queue;
-	return 0;
-}
-
-static inline int fm10k_maybe_stop_tx(struct fm10k_ring *tx_ring, u16 size)
-{
-	if (likely(fm10k_desc_unused(tx_ring) >= size))
-		return 0;
-	return __fm10k_maybe_stop_tx(tx_ring, size);
-}
-
 netdev_tx_t fm10k_xmit_frame_ring(struct sk_buff *skb,
 				  struct fm10k_ring *tx_ring)
 {
@@ -1116,8 +1121,6 @@ netdev_tx_t fm10k_xmit_frame_ring(struct sk_buff *skb,
 
 	fm10k_tx_map(tx_ring, first);
 
-	fm10k_maybe_stop_tx(tx_ring, DESC_NEEDED);
-
 	return NETDEV_TX_OK;
 
 out_drop:
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c b/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c
index bf44a8fe711f..8811364b91cb 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c
@@ -20,9 +20,9 @@
 
 #include "fm10k.h"
 #include <linux/vmalloc.h>
-#if IS_ENABLED(CONFIG_VXLAN)
+#if IS_ENABLED(CONFIG_FM10K_VXLAN)
 #include <net/vxlan.h>
-#endif /* CONFIG_VXLAN */
+#endif /* CONFIG_FM10K_VXLAN */
 
 /**
  * fm10k_setup_tx_resources - allocate Tx resources (Descriptors)
@@ -556,7 +556,7 @@ int fm10k_open(struct net_device *netdev)
 	if (err)
 		goto err_set_queues;
 
-#if IS_ENABLED(CONFIG_VXLAN)
+#if IS_ENABLED(CONFIG_FM10K_VXLAN)
 	/* update VXLAN port configuration */
 	vxlan_get_rx_port(netdev);
 
@@ -785,14 +785,14 @@ static int fm10k_update_vid(struct net_device *netdev, u16 vid, bool set)
 	if (!(netdev->flags & IFF_PROMISC)) {
 		err = hw->mac.ops.update_vlan(hw, vid, 0, set);
 		if (err)
-			return err;
+			goto err_out;
 	}
 
 	/* update our base MAC address */
 	err = hw->mac.ops.update_uc_addr(hw, interface->glort, hw->mac.addr,
 					 vid, set, 0);
 	if (err)
-		return err;
+		goto err_out;
 
 	/* set vid prior to syncing/unsyncing the VLAN */
 	interface->vid = vid + (set ? VLAN_N_VID : 0);
@@ -801,9 +801,10 @@ static int fm10k_update_vid(struct net_device *netdev, u16 vid, bool set)
 	__dev_uc_unsync(netdev, fm10k_uc_vlan_unsync);
 	__dev_mc_unsync(netdev, fm10k_mc_vlan_unsync);
 
+err_out:
 	fm10k_mbx_unlock(interface);
 
-	return 0;
+	return err;
 }
 
 static int fm10k_vlan_rx_add_vid(struct net_device *netdev,
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_pci.c b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c
index e02036c427b9..a0cb74ab3dc6 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_pci.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c
@@ -1489,6 +1489,7 @@ void fm10k_up(struct fm10k_intfc *interface)
 	netif_tx_start_all_queues(interface->netdev);
 
 	/* kick off the service timer */
+	hw->mac.get_host_state = 1;
 	mod_timer(&interface->service_timer, jiffies);
 }
 
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
index 706fc69aa0c5..97c85b859536 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
@@ -1261,6 +1261,9 @@ int ixgbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting)
 	struct ixgbe_hw *hw = &adapter->hw;
 	u32 regval;
 
+	if (vf >= adapter->num_vfs)
+		return -EINVAL;
+
 	adapter->vfinfo[vf].spoofchk_enabled = setting;
 
 	regval = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg));
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
index ffbae293cef5..6e6f18fc5d76 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
@@ -11,7 +11,7 @@ static const struct qlcnic_mailbox_metadata qlcnic_mbx_tbl[] = {
 	{QLCNIC_CMD_CREATE_RX_CTX, 4, 1},
 	{QLCNIC_CMD_DESTROY_RX_CTX, 2, 1},
 	{QLCNIC_CMD_CREATE_TX_CTX, 4, 1},
-	{QLCNIC_CMD_DESTROY_TX_CTX, 2, 1},
+	{QLCNIC_CMD_DESTROY_TX_CTX, 3, 1},
 	{QLCNIC_CMD_INTRPT_TEST, 4, 1},
 	{QLCNIC_CMD_SET_MTU, 4, 1},
 	{QLCNIC_CMD_READ_PHY, 4, 2},
@@ -32,7 +32,7 @@ static const struct qlcnic_mailbox_metadata qlcnic_mbx_tbl[] = {
 	{QLCNIC_CMD_CONFIGURE_ESWITCH, 4, 1},
 	{QLCNIC_CMD_GET_MAC_STATS, 4, 1},
 	{QLCNIC_CMD_GET_ESWITCH_PORT_CONFIG, 4, 3},
-	{QLCNIC_CMD_GET_ESWITCH_STATS, 5, 1},
+	{QLCNIC_CMD_GET_ESWITCH_STATS, 4, 1},
 	{QLCNIC_CMD_CONFIG_PORT, 4, 1},
 	{QLCNIC_CMD_TEMP_SIZE, 4, 4},
 	{QLCNIC_CMD_GET_TEMP_HDR, 4, 1},
@@ -129,7 +129,7 @@ int qlcnic_82xx_issue_cmd(struct qlcnic_adapter *adapter,
 	}
 
 	QLCWR32(adapter, QLCNIC_SIGN_CRB_OFFSET, signature);
-	for (i = 1; i < QLCNIC_CDRP_MAX_ARGS; i++)
+	for (i = 1; i < cmd->req.num; i++)
 		QLCWR32(adapter, QLCNIC_CDRP_ARG(i), cmd->req.arg[i]);
 	QLCWR32(adapter, QLCNIC_CDRP_CRB_OFFSET,
 		QLCNIC_CDRP_FORM_CMD(cmd->req.arg[0]));
diff --git a/drivers/net/ethernet/sfc/nic.h b/drivers/net/ethernet/sfc/nic.h
index 60f85149fc4c..f77cce034ad4 100644
--- a/drivers/net/ethernet/sfc/nic.h
+++ b/drivers/net/ethernet/sfc/nic.h
@@ -71,9 +71,17 @@ efx_tx_desc(struct efx_tx_queue *tx_queue, unsigned int index)
 	return ((efx_qword_t *) (tx_queue->txd.buf.addr)) + index;
 }
 
-/* Report whether the NIC considers this TX queue empty, given the
- * write_count used for the last doorbell push.  May return false
- * negative.
+/* Get partner of a TX queue, seen as part of the same net core queue */
+static struct efx_tx_queue *efx_tx_queue_partner(struct efx_tx_queue *tx_queue)
+{
+	if (tx_queue->queue & EFX_TXQ_TYPE_OFFLOAD)
+		return tx_queue - EFX_TXQ_TYPE_OFFLOAD;
+	else
+		return tx_queue + EFX_TXQ_TYPE_OFFLOAD;
+}
+
+/* Report whether this TX queue would be empty for the given write_count.
+ * May return false negative.
  */
 static inline bool __efx_nic_tx_is_empty(struct efx_tx_queue *tx_queue,
 					 unsigned int write_count)
@@ -86,9 +94,18 @@ static inline bool __efx_nic_tx_is_empty(struct efx_tx_queue *tx_queue,
 	return ((empty_read_count ^ write_count) & ~EFX_EMPTY_COUNT_VALID) == 0;
 }
 
-static inline bool efx_nic_tx_is_empty(struct efx_tx_queue *tx_queue)
+/* Decide whether we can use TX PIO, ie. write packet data directly into
+ * a buffer on the device.  This can reduce latency at the expense of
+ * throughput, so we only do this if both hardware and software TX rings
+ * are empty.  This also ensures that only one packet at a time can be
+ * using the PIO buffer.
+ */
+static inline bool efx_nic_may_tx_pio(struct efx_tx_queue *tx_queue)
 {
-	return __efx_nic_tx_is_empty(tx_queue, tx_queue->write_count);
+	struct efx_tx_queue *partner = efx_tx_queue_partner(tx_queue);
+	return tx_queue->piobuf &&
+	       __efx_nic_tx_is_empty(tx_queue, tx_queue->insert_count) &&
+	       __efx_nic_tx_is_empty(partner, partner->insert_count);
 }
 
 /* Decide whether to push a TX descriptor to the NIC vs merely writing
@@ -96,6 +113,8 @@ static inline bool efx_nic_tx_is_empty(struct efx_tx_queue *tx_queue)
  * descriptor to an empty queue, but is otherwise pointless.  Further,
  * Falcon and Siena have hardware bugs (SF bug 33851) that may be
  * triggered if we don't check this.
+ * We use the write_count used for the last doorbell push, to get the
+ * NIC's view of the tx queue.
  */
 static inline bool efx_nic_may_push_tx_desc(struct efx_tx_queue *tx_queue,
 					    unsigned int write_count)
diff --git a/drivers/net/ethernet/sfc/tx.c b/drivers/net/ethernet/sfc/tx.c
index 320609842211..ee84a90e371c 100644
--- a/drivers/net/ethernet/sfc/tx.c
+++ b/drivers/net/ethernet/sfc/tx.c
@@ -132,15 +132,6 @@ unsigned int efx_tx_max_skb_descs(struct efx_nic *efx)
 	return max_descs;
 }
 
-/* Get partner of a TX queue, seen as part of the same net core queue */
-static struct efx_tx_queue *efx_tx_queue_partner(struct efx_tx_queue *tx_queue)
-{
-	if (tx_queue->queue & EFX_TXQ_TYPE_OFFLOAD)
-		return tx_queue - EFX_TXQ_TYPE_OFFLOAD;
-	else
-		return tx_queue + EFX_TXQ_TYPE_OFFLOAD;
-}
-
 static void efx_tx_maybe_stop_queue(struct efx_tx_queue *txq1)
 {
 	/* We need to consider both queues that the net core sees as one */
@@ -344,6 +335,7 @@ netdev_tx_t efx_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb)
 	struct efx_nic *efx = tx_queue->efx;
 	struct device *dma_dev = &efx->pci_dev->dev;
 	struct efx_tx_buffer *buffer;
+	unsigned int old_insert_count = tx_queue->insert_count;
 	skb_frag_t *fragment;
 	unsigned int len, unmap_len = 0;
 	dma_addr_t dma_addr, unmap_addr = 0;
@@ -351,7 +343,7 @@ netdev_tx_t efx_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb)
 	unsigned short dma_flags;
 	int i = 0;
 
-	EFX_BUG_ON_PARANOID(tx_queue->write_count != tx_queue->insert_count);
+	EFX_BUG_ON_PARANOID(tx_queue->write_count > tx_queue->insert_count);
 
 	if (skb_shinfo(skb)->gso_size)
 		return efx_enqueue_skb_tso(tx_queue, skb);
@@ -369,9 +361,8 @@ netdev_tx_t efx_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb)
 
 	/* Consider using PIO for short packets */
 #ifdef EFX_USE_PIO
-	if (skb->len <= efx_piobuf_size && tx_queue->piobuf &&
-	    efx_nic_tx_is_empty(tx_queue) &&
-	    efx_nic_tx_is_empty(efx_tx_queue_partner(tx_queue))) {
+	if (skb->len <= efx_piobuf_size && !skb->xmit_more &&
+	    efx_nic_may_tx_pio(tx_queue)) {
 		buffer = efx_enqueue_skb_pio(tx_queue, skb);
 		dma_flags = EFX_TX_BUF_OPTION;
 		goto finish_packet;
@@ -439,13 +430,14 @@ finish_packet:
 
 	netdev_tx_sent_queue(tx_queue->core_txq, skb->len);
 
+	efx_tx_maybe_stop_queue(tx_queue);
+
 	/* Pass off to hardware */
-	efx_nic_push_buffers(tx_queue);
+	if (!skb->xmit_more || netif_xmit_stopped(tx_queue->core_txq))
+		efx_nic_push_buffers(tx_queue);
 
 	tx_queue->tx_packets++;
 
-	efx_tx_maybe_stop_queue(tx_queue);
-
 	return NETDEV_TX_OK;
 
  dma_err:
@@ -458,7 +450,7 @@ finish_packet:
 	dev_kfree_skb_any(skb);
 
 	/* Work backwards until we hit the original insert pointer value */
-	while (tx_queue->insert_count != tx_queue->write_count) {
+	while (tx_queue->insert_count != old_insert_count) {
 		unsigned int pkts_compl = 0, bytes_compl = 0;
 		--tx_queue->insert_count;
 		buffer = __efx_tx_queue_get_insert_buffer(tx_queue);
@@ -989,12 +981,13 @@ static int efx_tso_put_header(struct efx_tx_queue *tx_queue,
 /* Remove buffers put into a tx_queue.  None of the buffers must have
  * an skb attached.
  */
-static void efx_enqueue_unwind(struct efx_tx_queue *tx_queue)
+static void efx_enqueue_unwind(struct efx_tx_queue *tx_queue,
+			       unsigned int insert_count)
 {
 	struct efx_tx_buffer *buffer;
 
 	/* Work backwards until we hit the original insert pointer value */
-	while (tx_queue->insert_count != tx_queue->write_count) {
+	while (tx_queue->insert_count != insert_count) {
 		--tx_queue->insert_count;
 		buffer = __efx_tx_queue_get_insert_buffer(tx_queue);
 		efx_dequeue_buffer(tx_queue, buffer, NULL, NULL);
@@ -1258,13 +1251,14 @@ static int efx_enqueue_skb_tso(struct efx_tx_queue *tx_queue,
 			       struct sk_buff *skb)
 {
 	struct efx_nic *efx = tx_queue->efx;
+	unsigned int old_insert_count = tx_queue->insert_count;
 	int frag_i, rc;
 	struct tso_state state;
 
 	/* Find the packet protocol and sanity-check it */
 	state.protocol = efx_tso_check_protocol(skb);
 
-	EFX_BUG_ON_PARANOID(tx_queue->write_count != tx_queue->insert_count);
+	EFX_BUG_ON_PARANOID(tx_queue->write_count > tx_queue->insert_count);
 
 	rc = tso_start(&state, efx, skb);
 	if (rc)
@@ -1308,11 +1302,12 @@ static int efx_enqueue_skb_tso(struct efx_tx_queue *tx_queue,
 
 	netdev_tx_sent_queue(tx_queue->core_txq, skb->len);
 
-	/* Pass off to hardware */
-	efx_nic_push_buffers(tx_queue);
-
 	efx_tx_maybe_stop_queue(tx_queue);
 
+	/* Pass off to hardware */
+	if (!skb->xmit_more || netif_xmit_stopped(tx_queue->core_txq))
+		efx_nic_push_buffers(tx_queue);
+
 	tx_queue->tso_bursts++;
 	return NETDEV_TX_OK;
 
@@ -1336,6 +1331,6 @@ static int efx_enqueue_skb_tso(struct efx_tx_queue *tx_queue,
 		dma_unmap_single(&efx->pci_dev->dev, state.header_dma_addr,
 				 state.header_unmap_len, DMA_TO_DEVICE);
 
-	efx_enqueue_unwind(tx_queue);
+	efx_enqueue_unwind(tx_queue, old_insert_count);
 	return NETDEV_TX_OK;
 }
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c
index 552bbc17863c..ccfe7e510418 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c
@@ -3,7 +3,7 @@
  *
  * Copyright (C) 2003-2014 STMicroelectronics (R&D) Limited
  * Author: Srinivas Kandagatla <srinivas.kandagatla@st.com>
- *
+ * Contributors: Giuseppe Cavallaro <peppe.cavallaro@st.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -22,45 +22,22 @@
 #include <linux/of.h>
 #include <linux/of_net.h>
 
+#define DWMAC_125MHZ	125000000
+#define DWMAC_50MHZ	50000000
+#define DWMAC_25MHZ	25000000
+#define DWMAC_2_5MHZ	2500000
+
+#define IS_PHY_IF_MODE_RGMII(iface)	(iface == PHY_INTERFACE_MODE_RGMII || \
+			iface == PHY_INTERFACE_MODE_RGMII_ID || \
+			iface == PHY_INTERFACE_MODE_RGMII_RXID || \
+			iface == PHY_INTERFACE_MODE_RGMII_TXID)
+
+#define IS_PHY_IF_MODE_GBIT(iface)	(IS_PHY_IF_MODE_RGMII(iface) || \
+					 iface == PHY_INTERFACE_MODE_GMII)
+
+/* STiH4xx register definitions (STiH415/STiH416/STiH407/STiH410 families) */
+
 /**
- *			STi GMAC glue logic.
- *			--------------------
- *
- *		 _
- *		|  \
- *	--------|0  \ ETH_SEL_INTERNAL_NOTEXT_PHYCLK
- * phyclk	|    |___________________________________________
- *		|    |	|			(phyclk-in)
- *	--------|1  /	|
- * int-clk	|_ /	|
- *			|	 _
- *			|	|  \
- *			|_______|1  \ ETH_SEL_TX_RETIME_CLK
- *				|    |___________________________
- *				|    |		(tx-retime-clk)
- *			 _______|0  /
- *			|	|_ /
- *		 _	|
- *		|  \	|
- *	--------|0  \	|
- * clk_125	|    |__|
- *		|    |	ETH_SEL_TXCLK_NOT_CLK125
- *	--------|1  /
- * txclk	|_ /
- *
- *
- * ETH_SEL_INTERNAL_NOTEXT_PHYCLK is valid only for RMII where PHY can
- * generate 50MHz clock or MAC can generate it.
- * This bit is configured by "st,ext-phyclk" property.
- *
- * ETH_SEL_TXCLK_NOT_CLK125 is only valid for gigabit modes, where the 125Mhz
- * clock either comes from clk-125 pin or txclk pin. This configuration is
- * totally driven by the board wiring. This bit is configured by
- * "st,tx-retime-src" property.
- *
- * TXCLK configuration is different for different phy interface modes
- * and changes according to link speed in modes like RGMII.
- *
  * Below table summarizes the clock requirement and clock sources for
  * supported phy interface modes with link speeds.
  * ________________________________________________
@@ -74,44 +51,58 @@
  * ------------------------------------------------
  *|	RGMII	|     125Mhz	 |	25Mhz	   |
  *|		|  clk-125/txclk |	clkgen     |
+ *|		|    clkgen	 |		   |
  * ------------------------------------------------
  *|	RMII	|	n/a	 |	25Mhz	   |
  *|		|		 |clkgen/phyclk-in |
  * ------------------------------------------------
  *
- * TX lines are always retimed with a clk, which can vary depending
- * on the board configuration. Below is the table of these bits
- * in eth configuration register depending on source of retime clk.
- *
- *---------------------------------------------------------------
- * src	 | tx_rt_clk	| int_not_ext_phyclk	| txclk_n_clk125|
- *---------------------------------------------------------------
- * txclk |	0	|	n/a		|	1	|
- *---------------------------------------------------------------
- * ck_125|	0	|	n/a		|	0	|
- *---------------------------------------------------------------
- * phyclk|	1	|	0		|	n/a	|
- *---------------------------------------------------------------
- * clkgen|	1	|	1		|	n/a	|
- *---------------------------------------------------------------
+ *	  Register Configuration
+ *-------------------------------
+ * src	 |BIT(8)| BIT(7)| BIT(6)|
+ *-------------------------------
+ * txclk |   0	|  n/a	|   1	|
+ *-------------------------------
+ * ck_125|   0	|  n/a	|   0	|
+ *-------------------------------
+ * phyclk|   1	|   0	|  n/a	|
+ *-------------------------------
+ * clkgen|   1	|   1	|  n/a	|
+ *-------------------------------
  */
 
- /* Register definition */
+#define STIH4XX_RETIME_SRC_MASK			GENMASK(8, 6)
+#define STIH4XX_ETH_SEL_TX_RETIME_CLK		BIT(8)
+#define STIH4XX_ETH_SEL_INTERNAL_NOTEXT_PHYCLK	BIT(7)
+#define STIH4XX_ETH_SEL_TXCLK_NOT_CLK125	BIT(6)
+
+/* STiD127 register definitions */
 
- /* 3 bits [8:6]
-  *  [6:6]      ETH_SEL_TXCLK_NOT_CLK125
-  *  [7:7]      ETH_SEL_INTERNAL_NOTEXT_PHYCLK
-  *  [8:8]      ETH_SEL_TX_RETIME_CLK
-  *
-  */
+/**
+ *-----------------------
+ * src	 |BIT(6)| BIT(7)|
+ *-----------------------
+ * MII   |  1	|   n/a	|
+ *-----------------------
+ * RMII  |  n/a	|   1	|
+ * clkgen|	|	|
+ *-----------------------
+ * RMII  |  n/a	|   0	|
+ * phyclk|	|	|
+ *-----------------------
+ * RGMII |  1	|  n/a	|
+ * clkgen|	|	|
+ *-----------------------
+ */
 
-#define TX_RETIME_SRC_MASK		GENMASK(8, 6)
-#define ETH_SEL_TX_RETIME_CLK		BIT(8)
-#define ETH_SEL_INTERNAL_NOTEXT_PHYCLK	BIT(7)
-#define ETH_SEL_TXCLK_NOT_CLK125	BIT(6)
+#define STID127_RETIME_SRC_MASK			GENMASK(7, 6)
+#define STID127_ETH_SEL_INTERNAL_NOTEXT_PHYCLK	BIT(7)
+#define STID127_ETH_SEL_INTERNAL_NOTEXT_TXCLK	BIT(6)
 
-#define ENMII_MASK			GENMASK(5, 5)
-#define ENMII				BIT(5)
+#define ENMII_MASK	GENMASK(5, 5)
+#define ENMII		BIT(5)
+#define EN_MASK		GENMASK(1, 1)
+#define EN		BIT(1)
 
 /**
  * 3 bits [4:2]
@@ -120,29 +111,23 @@
  *	010-SGMII
  *	100-RMII
 */
-#define MII_PHY_SEL_MASK		GENMASK(4, 2)
-#define ETH_PHY_SEL_RMII		BIT(4)
-#define ETH_PHY_SEL_SGMII		BIT(3)
-#define ETH_PHY_SEL_RGMII		BIT(2)
-#define ETH_PHY_SEL_GMII		0x0
-#define ETH_PHY_SEL_MII			0x0
-
-#define IS_PHY_IF_MODE_RGMII(iface)	(iface == PHY_INTERFACE_MODE_RGMII || \
-			iface == PHY_INTERFACE_MODE_RGMII_ID || \
-			iface == PHY_INTERFACE_MODE_RGMII_RXID || \
-			iface == PHY_INTERFACE_MODE_RGMII_TXID)
-
-#define IS_PHY_IF_MODE_GBIT(iface)	(IS_PHY_IF_MODE_RGMII(iface) || \
-			iface == PHY_INTERFACE_MODE_GMII)
+#define MII_PHY_SEL_MASK	GENMASK(4, 2)
+#define ETH_PHY_SEL_RMII	BIT(4)
+#define ETH_PHY_SEL_SGMII	BIT(3)
+#define ETH_PHY_SEL_RGMII	BIT(2)
+#define ETH_PHY_SEL_GMII	0x0
+#define ETH_PHY_SEL_MII		0x0
 
 struct sti_dwmac {
-	int interface;
-	bool ext_phyclk;
-	bool is_tx_retime_src_clk_125;
-	struct clk *clk;
-	int reg;
+	int interface;		/* MII interface */
+	bool ext_phyclk;	/* Clock from external PHY */
+	u32 tx_retime_src;	/* TXCLK Retiming*/
+	struct clk *clk;	/* PHY clock */
+	int ctrl_reg;		/* GMAC glue-logic control register */
+	int clk_sel_reg;	/* GMAC ext clk selection register */
 	struct device *dev;
 	struct regmap *regmap;
+	u32 speed;
 };
 
 static u32 phy_intf_sels[] = {
@@ -162,74 +147,133 @@ enum {
 	TX_RETIME_SRC_CLKGEN,
 };
 
-static const char *const tx_retime_srcs[] = {
-	[TX_RETIME_SRC_NA] = "",
-	[TX_RETIME_SRC_TXCLK] = "txclk",
-	[TX_RETIME_SRC_CLK_125] = "clk_125",
-	[TX_RETIME_SRC_PHYCLK] = "phyclk",
-	[TX_RETIME_SRC_CLKGEN] = "clkgen",
-};
-
-static u32 tx_retime_val[] = {
-	[TX_RETIME_SRC_TXCLK] = ETH_SEL_TXCLK_NOT_CLK125,
+static u32 stih4xx_tx_retime_val[] = {
+	[TX_RETIME_SRC_TXCLK] = STIH4XX_ETH_SEL_TXCLK_NOT_CLK125,
 	[TX_RETIME_SRC_CLK_125] = 0x0,
-	[TX_RETIME_SRC_PHYCLK] = ETH_SEL_TX_RETIME_CLK,
-	[TX_RETIME_SRC_CLKGEN] = ETH_SEL_TX_RETIME_CLK |
-	    ETH_SEL_INTERNAL_NOTEXT_PHYCLK,
+	[TX_RETIME_SRC_PHYCLK] = STIH4XX_ETH_SEL_TX_RETIME_CLK,
+	[TX_RETIME_SRC_CLKGEN] = STIH4XX_ETH_SEL_TX_RETIME_CLK
+				 | STIH4XX_ETH_SEL_INTERNAL_NOTEXT_PHYCLK,
 };
 
-static void setup_retime_src(struct sti_dwmac *dwmac, u32 spd)
+static void stih4xx_fix_retime_src(void *priv, u32 spd)
 {
-	u32 src = 0, freq = 0;
-
-	if (spd == SPEED_100) {
-		if (dwmac->interface == PHY_INTERFACE_MODE_MII ||
-		    dwmac->interface == PHY_INTERFACE_MODE_GMII) {
-			src = TX_RETIME_SRC_TXCLK;
-		} else if (dwmac->interface == PHY_INTERFACE_MODE_RMII) {
-			if (dwmac->ext_phyclk) {
-				src = TX_RETIME_SRC_PHYCLK;
-			} else {
-				src = TX_RETIME_SRC_CLKGEN;
-				freq = 50000000;
-			}
-
-		} else if (IS_PHY_IF_MODE_RGMII(dwmac->interface)) {
+	struct sti_dwmac *dwmac = priv;
+	u32 src = dwmac->tx_retime_src;
+	u32 reg = dwmac->ctrl_reg;
+	u32 freq = 0;
+
+	if (dwmac->interface == PHY_INTERFACE_MODE_MII) {
+		src = TX_RETIME_SRC_TXCLK;
+	} else if (dwmac->interface == PHY_INTERFACE_MODE_RMII) {
+		if (dwmac->ext_phyclk) {
+			src = TX_RETIME_SRC_PHYCLK;
+		} else {
 			src = TX_RETIME_SRC_CLKGEN;
-			freq = 25000000;
+			freq = DWMAC_50MHZ;
 		}
+	} else if (IS_PHY_IF_MODE_RGMII(dwmac->interface)) {
+		/* On GiGa clk source can be either ext or from clkgen */
+		if (spd == SPEED_1000) {
+			freq = DWMAC_125MHZ;
+		} else {
+			/* Switch to clkgen for these speeds */
+			src = TX_RETIME_SRC_CLKGEN;
+			if (spd == SPEED_100)
+				freq = DWMAC_25MHZ;
+			else if (spd == SPEED_10)
+				freq = DWMAC_2_5MHZ;
+		}
+	}
 
-		if (src == TX_RETIME_SRC_CLKGEN && dwmac->clk)
-			clk_set_rate(dwmac->clk, freq);
+	if (src == TX_RETIME_SRC_CLKGEN && dwmac->clk && freq)
+		clk_set_rate(dwmac->clk, freq);
 
-	} else if (spd == SPEED_1000) {
-		if (dwmac->is_tx_retime_src_clk_125)
-			src = TX_RETIME_SRC_CLK_125;
-		else
-			src = TX_RETIME_SRC_TXCLK;
+	regmap_update_bits(dwmac->regmap, reg, STIH4XX_RETIME_SRC_MASK,
+			   stih4xx_tx_retime_val[src]);
+}
+
+static void stid127_fix_retime_src(void *priv, u32 spd)
+{
+	struct sti_dwmac *dwmac = priv;
+	u32 reg = dwmac->ctrl_reg;
+	u32 freq = 0;
+	u32 val = 0;
+
+	if (dwmac->interface == PHY_INTERFACE_MODE_MII) {
+		val = STID127_ETH_SEL_INTERNAL_NOTEXT_TXCLK;
+	} else if (dwmac->interface == PHY_INTERFACE_MODE_RMII) {
+		if (!dwmac->ext_phyclk) {
+			val = STID127_ETH_SEL_INTERNAL_NOTEXT_PHYCLK;
+			freq = DWMAC_50MHZ;
+		}
+	} else if (IS_PHY_IF_MODE_RGMII(dwmac->interface)) {
+		val = STID127_ETH_SEL_INTERNAL_NOTEXT_TXCLK;
+		if (spd == SPEED_1000)
+			freq = DWMAC_125MHZ;
+		else if (spd == SPEED_100)
+			freq = DWMAC_25MHZ;
+		else if (spd == SPEED_10)
+			freq = DWMAC_2_5MHZ;
 	}
 
-	regmap_update_bits(dwmac->regmap, dwmac->reg,
-			   TX_RETIME_SRC_MASK, tx_retime_val[src]);
+	if (dwmac->clk && freq)
+		clk_set_rate(dwmac->clk, freq);
+
+	regmap_update_bits(dwmac->regmap, reg, STID127_RETIME_SRC_MASK, val);
 }
 
-static void sti_dwmac_exit(struct platform_device *pdev, void *priv)
+static void sti_dwmac_ctrl_init(struct sti_dwmac *dwmac)
 {
-	struct sti_dwmac *dwmac = priv;
+	struct regmap *regmap = dwmac->regmap;
+	int iface = dwmac->interface;
+	struct device *dev = dwmac->dev;
+	struct device_node *np = dev->of_node;
+	u32 reg = dwmac->ctrl_reg;
+	u32 val;
 
 	if (dwmac->clk)
-		clk_disable_unprepare(dwmac->clk);
+		clk_prepare_enable(dwmac->clk);
+
+	if (of_property_read_bool(np, "st,gmac_en"))
+		regmap_update_bits(regmap, reg, EN_MASK, EN);
+
+	regmap_update_bits(regmap, reg, MII_PHY_SEL_MASK, phy_intf_sels[iface]);
+
+	val = (iface == PHY_INTERFACE_MODE_REVMII) ? 0 : ENMII;
+	regmap_update_bits(regmap, reg, ENMII_MASK, val);
+}
+
+static int stix4xx_init(struct platform_device *pdev, void *priv)
+{
+	struct sti_dwmac *dwmac = priv;
+	u32 spd = dwmac->speed;
+
+	sti_dwmac_ctrl_init(dwmac);
+
+	stih4xx_fix_retime_src(priv, spd);
+
+	return 0;
 }
 
-static void sti_fix_mac_speed(void *priv, unsigned int spd)
+static int stid127_init(struct platform_device *pdev, void *priv)
 {
 	struct sti_dwmac *dwmac = priv;
+	u32 spd = dwmac->speed;
 
-	setup_retime_src(dwmac, spd);
+	sti_dwmac_ctrl_init(dwmac);
 
-	return;
+	stid127_fix_retime_src(priv, spd);
+
+	return 0;
 }
 
+static void sti_dwmac_exit(struct platform_device *pdev, void *priv)
+{
+	struct sti_dwmac *dwmac = priv;
+
+	if (dwmac->clk)
+		clk_disable_unprepare(dwmac->clk);
+}
 static int sti_dwmac_parse_data(struct sti_dwmac *dwmac,
 				struct platform_device *pdev)
 {
@@ -245,6 +289,13 @@ static int sti_dwmac_parse_data(struct sti_dwmac *dwmac,
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "sti-ethconf");
 	if (!res)
 		return -ENODATA;
+	dwmac->ctrl_reg = res->start;
+
+	/* clk selection from extra syscfg register */
+	dwmac->clk_sel_reg = -ENXIO;
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "sti-clkconf");
+	if (res)
+		dwmac->clk_sel_reg = res->start;
 
 	regmap = syscon_regmap_lookup_by_phandle(np, "st,syscon");
 	if (IS_ERR(regmap))
@@ -253,53 +304,31 @@ static int sti_dwmac_parse_data(struct sti_dwmac *dwmac,
 	dwmac->dev = dev;
 	dwmac->interface = of_get_phy_mode(np);
 	dwmac->regmap = regmap;
-	dwmac->reg = res->start;
 	dwmac->ext_phyclk = of_property_read_bool(np, "st,ext-phyclk");
-	dwmac->is_tx_retime_src_clk_125 = false;
+	dwmac->tx_retime_src = TX_RETIME_SRC_NA;
+	dwmac->speed = SPEED_100;
 
 	if (IS_PHY_IF_MODE_GBIT(dwmac->interface)) {
 		const char *rs;
+		dwmac->tx_retime_src = TX_RETIME_SRC_CLKGEN;
 
 		err = of_property_read_string(np, "st,tx-retime-src", &rs);
-		if (err < 0) {
-			dev_err(dev, "st,tx-retime-src not specified\n");
-			return err;
-		}
+		if (err < 0)
+			dev_warn(dev, "Use internal clock source\n");
 
 		if (!strcasecmp(rs, "clk_125"))
-			dwmac->is_tx_retime_src_clk_125 = true;
+			dwmac->tx_retime_src = TX_RETIME_SRC_CLK_125;
+		else if (!strcasecmp(rs, "txclk"))
+			dwmac->tx_retime_src = TX_RETIME_SRC_TXCLK;
+
+		dwmac->speed = SPEED_1000;
 	}
 
 	dwmac->clk = devm_clk_get(dev, "sti-ethclk");
-
-	if (IS_ERR(dwmac->clk))
+	if (IS_ERR(dwmac->clk)) {
+		dev_warn(dev, "No phy clock provided...\n");
 		dwmac->clk = NULL;
-
-	return 0;
-}
-
-static int sti_dwmac_init(struct platform_device *pdev, void *priv)
-{
-	struct sti_dwmac *dwmac = priv;
-	struct regmap *regmap = dwmac->regmap;
-	int iface = dwmac->interface;
-	u32 reg = dwmac->reg;
-	u32 val, spd;
-
-	if (dwmac->clk)
-		clk_prepare_enable(dwmac->clk);
-
-	regmap_update_bits(regmap, reg, MII_PHY_SEL_MASK, phy_intf_sels[iface]);
-
-	val = (iface == PHY_INTERFACE_MODE_REVMII) ? 0 : ENMII;
-	regmap_update_bits(regmap, reg, ENMII_MASK, val);
-
-	if (IS_PHY_IF_MODE_GBIT(iface))
-		spd = SPEED_1000;
-	else
-		spd = SPEED_100;
-
-	setup_retime_src(dwmac, spd);
+	}
 
 	return 0;
 }
@@ -322,9 +351,16 @@ static void *sti_dwmac_setup(struct platform_device *pdev)
 	return dwmac;
 }
 
-const struct stmmac_of_data sti_gmac_data = {
-	.fix_mac_speed = sti_fix_mac_speed,
+const struct stmmac_of_data stih4xx_dwmac_data = {
+	.fix_mac_speed = stih4xx_fix_retime_src,
+	.setup = sti_dwmac_setup,
+	.init = stix4xx_init,
+	.exit = sti_dwmac_exit,
+};
+
+const struct stmmac_of_data stid127_dwmac_data = {
+	.fix_mac_speed = stid127_fix_retime_src,
 	.setup = sti_dwmac_setup,
-	.init = sti_dwmac_init,
+	.init = stid127_init,
 	.exit = sti_dwmac_exit,
 };
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac.h b/drivers/net/ethernet/stmicro/stmmac/stmmac.h
index 44528896355d..c3c40650b309 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac.h
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac.h
@@ -144,7 +144,8 @@ extern const struct stmmac_of_data meson6_dwmac_data;
 extern const struct stmmac_of_data sun7i_gmac_data;
 #endif
 #ifdef CONFIG_DWMAC_STI
-extern const struct stmmac_of_data sti_gmac_data;
+extern const struct stmmac_of_data stih4xx_dwmac_data;
+extern const struct stmmac_of_data stid127_dwmac_data;
 #endif
 #ifdef CONFIG_DWMAC_SOCFPGA
 extern const struct stmmac_of_data socfpga_gmac_data;
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index 652171706258..db56fa7ce8f9 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -37,9 +37,10 @@ static const struct of_device_id stmmac_dt_ids[] = {
 	{ .compatible = "allwinner,sun7i-a20-gmac", .data = &sun7i_gmac_data},
 #endif
 #ifdef CONFIG_DWMAC_STI
-	{ .compatible = "st,stih415-dwmac", .data = &sti_gmac_data},
-	{ .compatible = "st,stih416-dwmac", .data = &sti_gmac_data},
-	{ .compatible = "st,stid127-dwmac", .data = &sti_gmac_data},
+	{ .compatible = "st,stih415-dwmac", .data = &stih4xx_dwmac_data},
+	{ .compatible = "st,stih416-dwmac", .data = &stih4xx_dwmac_data},
+	{ .compatible = "st,stid127-dwmac", .data = &stid127_dwmac_data},
+	{ .compatible = "st,stih407-dwmac", .data = &stih4xx_dwmac_data},
 #endif
 #ifdef CONFIG_DWMAC_SOCFPGA
 	{ .compatible = "altr,socfpga-stmmac", .data = &socfpga_gmac_data },
@@ -160,11 +161,16 @@ static int stmmac_probe_config_dt(struct platform_device *pdev,
 	if (of_property_read_u32(np, "snps,phy-addr", &plat->phy_addr) == 0)
 		dev_warn(&pdev->dev, "snps,phy-addr property is deprecated\n");
 
-	plat->mdio_bus_data = devm_kzalloc(&pdev->dev,
-					   sizeof(struct stmmac_mdio_bus_data),
-					   GFP_KERNEL);
+	if (plat->phy_bus_name)
+		plat->mdio_bus_data = NULL;
+	else
+		plat->mdio_bus_data =
+			devm_kzalloc(&pdev->dev,
+				     sizeof(struct stmmac_mdio_bus_data),
+				     GFP_KERNEL);
 
-	plat->force_sf_dma_mode = of_property_read_bool(np, "snps,force_sf_dma_mode");
+	plat->force_sf_dma_mode =
+		of_property_read_bool(np, "snps,force_sf_dma_mode");
 
 	/* Set the maxmtu to a default of JUMBO_LEN in case the
 	 * parameter is not present in the device tree.
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index ab167dc49ce4..952e1e4764b7 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -2392,6 +2392,15 @@ clean_ndev_ret:
 	return ret;
 }
 
+static int cpsw_remove_child_device(struct device *dev, void *c)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+
+	of_device_unregister(pdev);
+
+	return 0;
+}
+
 static int cpsw_remove(struct platform_device *pdev)
 {
 	struct net_device *ndev = platform_get_drvdata(pdev);
@@ -2406,6 +2415,7 @@ static int cpsw_remove(struct platform_device *pdev)
 	cpdma_chan_destroy(priv->rxch);
 	cpdma_ctlr_destroy(priv->dma);
 	pm_runtime_disable(&pdev->dev);
+	device_for_each_child(&pdev->dev, NULL, cpsw_remove_child_device);
 	if (priv->data.dual_emac)
 		free_netdev(cpsw_get_slave_ndev(priv, 1));
 	free_netdev(ndev);
diff --git a/drivers/net/ethernet/ti/davinci_cpdma.c b/drivers/net/ethernet/ti/davinci_cpdma.c
index 4a000f6dd6fc..657b65bf5cac 100644
--- a/drivers/net/ethernet/ti/davinci_cpdma.c
+++ b/drivers/net/ethernet/ti/davinci_cpdma.c
@@ -193,12 +193,9 @@ fail:
 
 static void cpdma_desc_pool_destroy(struct cpdma_desc_pool *pool)
 {
-	unsigned long flags;
-
 	if (!pool)
 		return;
 
-	spin_lock_irqsave(&pool->lock, flags);
 	WARN_ON(pool->used_desc);
 	if (pool->cpumap) {
 		dma_free_coherent(pool->dev, pool->mem_size, pool->cpumap,
@@ -206,7 +203,6 @@ static void cpdma_desc_pool_destroy(struct cpdma_desc_pool *pool)
 	} else {
 		iounmap(pool->iomap);
 	}
-	spin_unlock_irqrestore(&pool->lock, flags);
 }
 
 static inline dma_addr_t desc_phys(struct cpdma_desc_pool *pool,
@@ -561,7 +557,6 @@ int cpdma_chan_destroy(struct cpdma_chan *chan)
 		cpdma_chan_stop(chan);
 	ctlr->channels[chan->chan_num] = NULL;
 	spin_unlock_irqrestore(&ctlr->lock, flags);
-	kfree(chan);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(cpdma_chan_destroy);
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index 0fcb5e7eb073..9e17d1a91e71 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -162,7 +162,7 @@ union sub_key {
  * data: network byte order
  * return: host byte order
  */
-static u32 comp_hash(u8 *key, int klen, u8 *data, int dlen)
+static u32 comp_hash(u8 *key, int klen, void *data, int dlen)
 {
 	union sub_key subk;
 	int k_next = 4;
@@ -176,7 +176,7 @@ static u32 comp_hash(u8 *key, int klen, u8 *data, int dlen)
 	for (i = 0; i < dlen; i++) {
 		subk.kb = key[k_next];
 		k_next = (k_next + 1) % klen;
-		dt = data[i];
+		dt = ((u8 *)data)[i];
 		for (j = 0; j < 8; j++) {
 			if (dt & 0x80)
 				ret ^= subk.ka;
@@ -190,26 +190,20 @@ static u32 comp_hash(u8 *key, int klen, u8 *data, int dlen)
 
 static bool netvsc_set_hash(u32 *hash, struct sk_buff *skb)
 {
-	struct iphdr *iphdr;
+	struct flow_keys flow;
 	int data_len;
-	bool ret = false;
 
-	if (eth_hdr(skb)->h_proto != htons(ETH_P_IP))
+	if (!skb_flow_dissect(skb, &flow) || flow.n_proto != htons(ETH_P_IP))
 		return false;
 
-	iphdr = ip_hdr(skb);
+	if (flow.ip_proto == IPPROTO_TCP)
+		data_len = 12;
+	else
+		data_len = 8;
 
-	if (iphdr->version == 4) {
-		if (iphdr->protocol == IPPROTO_TCP)
-			data_len = 12;
-		else
-			data_len = 8;
-		*hash = comp_hash(netvsc_hash_key, HASH_KEYLEN,
-				  (u8 *)&iphdr->saddr, data_len);
-		ret = true;
-	}
+	*hash = comp_hash(netvsc_hash_key, HASH_KEYLEN, &flow, data_len);
 
-	return ret;
+	return true;
 }
 
 static u16 netvsc_select_queue(struct net_device *ndev, struct sk_buff *skb,
diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index 0c6adaaf898c..65e2892342bd 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -298,7 +298,7 @@ static rx_handler_result_t macvtap_handle_frame(struct sk_buff **pskb)
 	 */
 	if (q->flags & IFF_VNET_HDR)
 		features |= vlan->tap_features;
-	if (netif_needs_gso(skb, features)) {
+	if (netif_needs_gso(dev, skb, features)) {
 		struct sk_buff *segs = __skb_gso_segment(skb, features, false);
 
 		if (IS_ERR(segs))
diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
index 492435fce1d4..8c2a29a9bd7f 100644
--- a/drivers/net/phy/micrel.c
+++ b/drivers/net/phy/micrel.c
@@ -198,8 +198,10 @@ static int ksz8021_config_init(struct phy_device *phydev)
 	if (rc)
 		dev_err(&phydev->dev, "failed to set led mode\n");
 
-	phy_write(phydev, MII_KSZPHY_OMSO, val);
 	rc = ksz_config_flags(phydev);
+	if (rc < 0)
+		return rc;
+	rc = phy_write(phydev, MII_KSZPHY_OMSO, val);
 	return rc < 0 ? rc : 0;
 }
 
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 864159eb744e..e3d84c322e4e 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -3189,31 +3189,39 @@ static void r8153_init(struct r8152 *tp)
 static int rtl8152_suspend(struct usb_interface *intf, pm_message_t message)
 {
 	struct r8152 *tp = usb_get_intfdata(intf);
+	struct net_device *netdev = tp->netdev;
+	int ret = 0;
 
 	mutex_lock(&tp->control);
 
-	if (PMSG_IS_AUTO(message))
+	if (PMSG_IS_AUTO(message)) {
+		if (netif_running(netdev) && work_busy(&tp->schedule.work)) {
+			ret = -EBUSY;
+			goto out1;
+		}
+
 		set_bit(SELECTIVE_SUSPEND, &tp->flags);
-	else
-		netif_device_detach(tp->netdev);
+	} else {
+		netif_device_detach(netdev);
+	}
 
-	if (netif_running(tp->netdev)) {
+	if (netif_running(netdev)) {
 		clear_bit(WORK_ENABLE, &tp->flags);
 		usb_kill_urb(tp->intr_urb);
-		cancel_delayed_work_sync(&tp->schedule);
 		tasklet_disable(&tp->tl);
 		if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
 			rtl_stop_rx(tp);
 			rtl_runtime_suspend_enable(tp, true);
 		} else {
+			cancel_delayed_work_sync(&tp->schedule);
 			tp->rtl_ops.down(tp);
 		}
 		tasklet_enable(&tp->tl);
 	}
-
+out1:
 	mutex_unlock(&tp->control);
 
-	return 0;
+	return ret;
 }
 
 static int rtl8152_resume(struct usb_interface *intf)
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 3d0ce4468ce6..13d0a8bc8bf3 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -920,6 +920,8 @@ static netdev_tx_t start_xmit(struct sk_buff *skb, struct net_device *dev)
 	int qnum = skb_get_queue_mapping(skb);
 	struct send_queue *sq = &vi->sq[qnum];
 	int err;
+	struct netdev_queue *txq = netdev_get_tx_queue(dev, qnum);
+	bool kick = !skb->xmit_more;
 
 	/* Free up any pending old buffers before queueing new ones. */
 	free_old_xmit_skbs(sq);
@@ -956,7 +958,7 @@ static netdev_tx_t start_xmit(struct sk_buff *skb, struct net_device *dev)
 		}
 	}
 
-	if (__netif_subqueue_stopped(dev, qnum) || !skb->xmit_more)
+	if (kick || netif_xmit_stopped(txq))
 		virtqueue_kick(sq->vq);
 
 	return NETDEV_TX_OK;
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 2a51e6e48e1e..ca309820d39e 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -1437,9 +1437,6 @@ static int neigh_reduce(struct net_device *dev, struct sk_buff *skb)
 	if (!in6_dev)
 		goto out;
 
-	if (!pskb_may_pull(skb, skb->len))
-		goto out;
-
 	iphdr = ipv6_hdr(skb);
 	saddr = &iphdr->saddr;
 	daddr = &iphdr->daddr;
@@ -1668,6 +1665,8 @@ static void vxlan_encap_bypass(struct sk_buff *skb, struct vxlan_dev *src_vxlan,
 	struct pcpu_sw_netstats *tx_stats, *rx_stats;
 	union vxlan_addr loopback;
 	union vxlan_addr *remote_ip = &dst_vxlan->default_dst.remote_ip;
+	struct net_device *dev = skb->dev;
+	int len = skb->len;
 
 	tx_stats = this_cpu_ptr(src_vxlan->dev->tstats);
 	rx_stats = this_cpu_ptr(dst_vxlan->dev->tstats);
@@ -1691,16 +1690,16 @@ static void vxlan_encap_bypass(struct sk_buff *skb, struct vxlan_dev *src_vxlan,
 
 	u64_stats_update_begin(&tx_stats->syncp);
 	tx_stats->tx_packets++;
-	tx_stats->tx_bytes += skb->len;
+	tx_stats->tx_bytes += len;
 	u64_stats_update_end(&tx_stats->syncp);
 
 	if (netif_rx(skb) == NET_RX_SUCCESS) {
 		u64_stats_update_begin(&rx_stats->syncp);
 		rx_stats->rx_packets++;
-		rx_stats->rx_bytes += skb->len;
+		rx_stats->rx_bytes += len;
 		u64_stats_update_end(&rx_stats->syncp);
 	} else {
-		skb->dev->stats.rx_dropped++;
+		dev->stats.rx_dropped++;
 	}
 }
 
@@ -1878,7 +1877,8 @@ static netdev_tx_t vxlan_xmit(struct sk_buff *skb, struct net_device *dev)
 			return arp_reduce(dev, skb);
 #if IS_ENABLED(CONFIG_IPV6)
 		else if (ntohs(eth->h_proto) == ETH_P_IPV6 &&
-			 skb->len >= sizeof(struct ipv6hdr) + sizeof(struct nd_msg) &&
+			 pskb_may_pull(skb, sizeof(struct ipv6hdr)
+				       + sizeof(struct nd_msg)) &&
 			 ipv6_hdr(skb)->nexthdr == IPPROTO_ICMPV6) {
 				struct nd_msg *msg;
 
@@ -1887,6 +1887,7 @@ static netdev_tx_t vxlan_xmit(struct sk_buff *skb, struct net_device *dev)
 				    msg->icmph.icmp6_type == NDISC_NEIGHBOUR_SOLICITATION)
 					return neigh_reduce(dev, skb);
 		}
+		eth = eth_hdr(skb);
 #endif
 	}
 
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index fa671442f420..cca871346a0f 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -638,7 +638,7 @@ static int xennet_start_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	if (unlikely(!netif_carrier_ok(dev) ||
 		     (slots > 1 && !xennet_can_sg(dev)) ||
-		     netif_needs_gso(skb, netif_skb_features(skb)))) {
+		     netif_needs_gso(dev, skb, netif_skb_features(skb)))) {
 		spin_unlock_irqrestore(&queue->tx_lock, flags);
 		goto drop;
 	}