pch_gbe: Move the OKI Semiconductor driver

Move the OKI Semiconductor driver into driver/net/ethernet/oki-semi/
and make the necessary Kconfig and Makefile changes.

Note: there is no documented maintainer for this driver, so I CC'd
the last 2 major contributors.

CC: Tomoya <tomoya-linux@dsn.okisemi.com>
CC: Toshiharu Okada <toshiharu-linux@dsn.okisemi.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

1 files changed, 0 insertions, 2523 deletions

diff --git a/drivers/net/pch_gbe/pch_gbe_main.c b/drivers/net/pch_gbe/pch_gbe_main.c
deleted file mode 100644
index eac3c5ca9731..000000000000
--- a/drivers/net/pch_gbe/pch_gbe_main.c
+++ /dev/null
@@ -1,2523 +0,0 @@
-/*
- * Copyright (C) 1999 - 2010 Intel Corporation.
- * Copyright (C) 2010 OKI SEMICONDUCTOR CO., LTD.
- *
- * This code was derived from the Intel e1000e Linux driver.
- *
- * 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; version 2 of the License.
- *
- * 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, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA.
- */
-
-#include "pch_gbe.h"
-#include "pch_gbe_api.h"
-#include <linux/prefetch.h>
-
-#define DRV_VERSION     "1.00"
-const char pch_driver_version[] = DRV_VERSION;
-
-#define PCI_DEVICE_ID_INTEL_IOH1_GBE	0x8802		/* Pci device ID */
-#define PCH_GBE_MAR_ENTRIES		16
-#define PCH_GBE_SHORT_PKT		64
-#define DSC_INIT16			0xC000
-#define PCH_GBE_DMA_ALIGN		0
-#define PCH_GBE_DMA_PADDING		2
-#define PCH_GBE_WATCHDOG_PERIOD		(1 * HZ)	/* watchdog time */
-#define PCH_GBE_COPYBREAK_DEFAULT	256
-#define PCH_GBE_PCI_BAR			1
-
-/* Macros for ML7223 */
-#define PCI_VENDOR_ID_ROHM			0x10db
-#define PCI_DEVICE_ID_ROHM_ML7223_GBE		0x8013
-
-#define PCH_GBE_TX_WEIGHT         64
-#define PCH_GBE_RX_WEIGHT         64
-#define PCH_GBE_RX_BUFFER_WRITE   16
-
-/* Initialize the wake-on-LAN settings */
-#define PCH_GBE_WL_INIT_SETTING    (PCH_GBE_WLC_MP)
-
-#define PCH_GBE_MAC_RGMII_CTRL_SETTING ( \
-	PCH_GBE_CHIP_TYPE_INTERNAL | \
-	PCH_GBE_RGMII_MODE_RGMII     \
-	)
-
-/* Ethertype field values */
-#define PCH_GBE_MAX_JUMBO_FRAME_SIZE    10318
-#define PCH_GBE_FRAME_SIZE_2048         2048
-#define PCH_GBE_FRAME_SIZE_4096         4096
-#define PCH_GBE_FRAME_SIZE_8192         8192
-
-#define PCH_GBE_GET_DESC(R, i, type)    (&(((struct type *)((R).desc))[i]))
-#define PCH_GBE_RX_DESC(R, i)           PCH_GBE_GET_DESC(R, i, pch_gbe_rx_desc)
-#define PCH_GBE_TX_DESC(R, i)           PCH_GBE_GET_DESC(R, i, pch_gbe_tx_desc)
-#define PCH_GBE_DESC_UNUSED(R) \
-	((((R)->next_to_clean > (R)->next_to_use) ? 0 : (R)->count) + \
-	(R)->next_to_clean - (R)->next_to_use - 1)
-
-/* Pause packet value */
-#define	PCH_GBE_PAUSE_PKT1_VALUE    0x00C28001
-#define	PCH_GBE_PAUSE_PKT2_VALUE    0x00000100
-#define	PCH_GBE_PAUSE_PKT4_VALUE    0x01000888
-#define	PCH_GBE_PAUSE_PKT5_VALUE    0x0000FFFF
-
-#define PCH_GBE_ETH_ALEN            6
-
-/* This defines the bits that are set in the Interrupt Mask
- * Set/Read Register.  Each bit is documented below:
- *   o RXT0   = Receiver Timer Interrupt (ring 0)
- *   o TXDW   = Transmit Descriptor Written Back
- *   o RXDMT0 = Receive Descriptor Minimum Threshold hit (ring 0)
- *   o RXSEQ  = Receive Sequence Error
- *   o LSC    = Link Status Change
- */
-#define PCH_GBE_INT_ENABLE_MASK ( \
-	PCH_GBE_INT_RX_DMA_CMPLT |    \
-	PCH_GBE_INT_RX_DSC_EMP   |    \
-	PCH_GBE_INT_WOL_DET      |    \
-	PCH_GBE_INT_TX_CMPLT          \
-	)
-
-
-static unsigned int copybreak __read_mostly = PCH_GBE_COPYBREAK_DEFAULT;
-
-static int pch_gbe_mdio_read(struct net_device *netdev, int addr, int reg);
-static void pch_gbe_mdio_write(struct net_device *netdev, int addr, int reg,
-			       int data);
-
-inline void pch_gbe_mac_load_mac_addr(struct pch_gbe_hw *hw)
-{
-	iowrite32(0x01, &hw->reg->MAC_ADDR_LOAD);
-}
-
-/**
- * pch_gbe_mac_read_mac_addr - Read MAC address
- * @hw:	            Pointer to the HW structure
- * Returns
- *	0:			Successful.
- */
-s32 pch_gbe_mac_read_mac_addr(struct pch_gbe_hw *hw)
-{
-	u32  adr1a, adr1b;
-
-	adr1a = ioread32(&hw->reg->mac_adr[0].high);
-	adr1b = ioread32(&hw->reg->mac_adr[0].low);
-
-	hw->mac.addr[0] = (u8)(adr1a & 0xFF);
-	hw->mac.addr[1] = (u8)((adr1a >> 8) & 0xFF);
-	hw->mac.addr[2] = (u8)((adr1a >> 16) & 0xFF);
-	hw->mac.addr[3] = (u8)((adr1a >> 24) & 0xFF);
-	hw->mac.addr[4] = (u8)(adr1b & 0xFF);
-	hw->mac.addr[5] = (u8)((adr1b >> 8) & 0xFF);
-
-	pr_debug("hw->mac.addr : %pM\n", hw->mac.addr);
-	return 0;
-}
-
-/**
- * pch_gbe_wait_clr_bit - Wait to clear a bit
- * @reg:	Pointer of register
- * @busy:	Busy bit
- */
-static void pch_gbe_wait_clr_bit(void *reg, u32 bit)
-{
-	u32 tmp;
-	/* wait busy */
-	tmp = 1000;
-	while ((ioread32(reg) & bit) && --tmp)
-		cpu_relax();
-	if (!tmp)
-		pr_err("Error: busy bit is not cleared\n");
-}
-/**
- * pch_gbe_mac_mar_set - Set MAC address register
- * @hw:	    Pointer to the HW structure
- * @addr:   Pointer to the MAC address
- * @index:  MAC address array register
- */
-static void pch_gbe_mac_mar_set(struct pch_gbe_hw *hw, u8 * addr, u32 index)
-{
-	u32 mar_low, mar_high, adrmask;
-
-	pr_debug("index : 0x%x\n", index);
-
-	/*
-	 * HW expects these in little endian so we reverse the byte order
-	 * from network order (big endian) to little endian
-	 */
-	mar_high = ((u32) addr[0] | ((u32) addr[1] << 8) |
-		   ((u32) addr[2] << 16) | ((u32) addr[3] << 24));
-	mar_low = ((u32) addr[4] | ((u32) addr[5] << 8));
-	/* Stop the MAC Address of index. */
-	adrmask = ioread32(&hw->reg->ADDR_MASK);
-	iowrite32((adrmask | (0x0001 << index)), &hw->reg->ADDR_MASK);
-	/* wait busy */
-	pch_gbe_wait_clr_bit(&hw->reg->ADDR_MASK, PCH_GBE_BUSY);
-	/* Set the MAC address to the MAC address 1A/1B register */
-	iowrite32(mar_high, &hw->reg->mac_adr[index].high);
-	iowrite32(mar_low, &hw->reg->mac_adr[index].low);
-	/* Start the MAC address of index */
-	iowrite32((adrmask & ~(0x0001 << index)), &hw->reg->ADDR_MASK);
-	/* wait busy */
-	pch_gbe_wait_clr_bit(&hw->reg->ADDR_MASK, PCH_GBE_BUSY);
-}
-
-/**
- * pch_gbe_mac_reset_hw - Reset hardware
- * @hw:	Pointer to the HW structure
- */
-static void pch_gbe_mac_reset_hw(struct pch_gbe_hw *hw)
-{
-	/* Read the MAC address. and store to the private data */
-	pch_gbe_mac_read_mac_addr(hw);
-	iowrite32(PCH_GBE_ALL_RST, &hw->reg->RESET);
-#ifdef PCH_GBE_MAC_IFOP_RGMII
-	iowrite32(PCH_GBE_MODE_GMII_ETHER, &hw->reg->MODE);
-#endif
-	pch_gbe_wait_clr_bit(&hw->reg->RESET, PCH_GBE_ALL_RST);
-	/* Setup the receive address */
-	pch_gbe_mac_mar_set(hw, hw->mac.addr, 0);
-	return;
-}
-
-/**
- * pch_gbe_mac_init_rx_addrs - Initialize receive address's
- * @hw:	Pointer to the HW structure
- * @mar_count: Receive address registers
- */
-static void pch_gbe_mac_init_rx_addrs(struct pch_gbe_hw *hw, u16 mar_count)
-{
-	u32 i;
-
-	/* Setup the receive address */
-	pch_gbe_mac_mar_set(hw, hw->mac.addr, 0);
-
-	/* Zero out the other receive addresses */
-	for (i = 1; i < mar_count; i++) {
-		iowrite32(0, &hw->reg->mac_adr[i].high);
-		iowrite32(0, &hw->reg->mac_adr[i].low);
-	}
-	iowrite32(0xFFFE, &hw->reg->ADDR_MASK);
-	/* wait busy */
-	pch_gbe_wait_clr_bit(&hw->reg->ADDR_MASK, PCH_GBE_BUSY);
-}
-
-
-/**
- * pch_gbe_mac_mc_addr_list_update - Update Multicast addresses
- * @hw:	            Pointer to the HW structure
- * @mc_addr_list:   Array of multicast addresses to program
- * @mc_addr_count:  Number of multicast addresses to program
- * @mar_used_count: The first MAC Address register free to program
- * @mar_total_num:  Total number of supported MAC Address Registers
- */
-static void pch_gbe_mac_mc_addr_list_update(struct pch_gbe_hw *hw,
-					    u8 *mc_addr_list, u32 mc_addr_count,
-					    u32 mar_used_count, u32 mar_total_num)
-{
-	u32 i, adrmask;
-
-	/* Load the first set of multicast addresses into the exact
-	 * filters (RAR).  If there are not enough to fill the RAR
-	 * array, clear the filters.
-	 */
-	for (i = mar_used_count; i < mar_total_num; i++) {
-		if (mc_addr_count) {
-			pch_gbe_mac_mar_set(hw, mc_addr_list, i);
-			mc_addr_count--;
-			mc_addr_list += PCH_GBE_ETH_ALEN;
-		} else {
-			/* Clear MAC address mask */
-			adrmask = ioread32(&hw->reg->ADDR_MASK);
-			iowrite32((adrmask | (0x0001 << i)),
-					&hw->reg->ADDR_MASK);
-			/* wait busy */
-			pch_gbe_wait_clr_bit(&hw->reg->ADDR_MASK, PCH_GBE_BUSY);
-			/* Clear MAC address */
-			iowrite32(0, &hw->reg->mac_adr[i].high);
-			iowrite32(0, &hw->reg->mac_adr[i].low);
-		}
-	}
-}
-
-/**
- * pch_gbe_mac_force_mac_fc - Force the MAC's flow control settings
- * @hw:	            Pointer to the HW structure
- * Returns
- *	0:			Successful.
- *	Negative value:		Failed.
- */
-s32 pch_gbe_mac_force_mac_fc(struct pch_gbe_hw *hw)
-{
-	struct pch_gbe_mac_info *mac = &hw->mac;
-	u32 rx_fctrl;
-
-	pr_debug("mac->fc = %u\n", mac->fc);
-
-	rx_fctrl = ioread32(&hw->reg->RX_FCTRL);
-
-	switch (mac->fc) {
-	case PCH_GBE_FC_NONE:
-		rx_fctrl &= ~PCH_GBE_FL_CTRL_EN;
-		mac->tx_fc_enable = false;
-		break;
-	case PCH_GBE_FC_RX_PAUSE:
-		rx_fctrl |= PCH_GBE_FL_CTRL_EN;
-		mac->tx_fc_enable = false;
-		break;
-	case PCH_GBE_FC_TX_PAUSE:
-		rx_fctrl &= ~PCH_GBE_FL_CTRL_EN;
-		mac->tx_fc_enable = true;
-		break;
-	case PCH_GBE_FC_FULL:
-		rx_fctrl |= PCH_GBE_FL_CTRL_EN;
-		mac->tx_fc_enable = true;
-		break;
-	default:
-		pr_err("Flow control param set incorrectly\n");
-		return -EINVAL;
-	}
-	if (mac->link_duplex == DUPLEX_HALF)
-		rx_fctrl &= ~PCH_GBE_FL_CTRL_EN;
-	iowrite32(rx_fctrl, &hw->reg->RX_FCTRL);
-	pr_debug("RX_FCTRL reg : 0x%08x  mac->tx_fc_enable : %d\n",
-		 ioread32(&hw->reg->RX_FCTRL), mac->tx_fc_enable);
-	return 0;
-}
-
-/**
- * pch_gbe_mac_set_wol_event - Set wake-on-lan event
- * @hw:     Pointer to the HW structure
- * @wu_evt: Wake up event
- */
-static void pch_gbe_mac_set_wol_event(struct pch_gbe_hw *hw, u32 wu_evt)
-{
-	u32 addr_mask;
-
-	pr_debug("wu_evt : 0x%08x  ADDR_MASK reg : 0x%08x\n",
-		 wu_evt, ioread32(&hw->reg->ADDR_MASK));
-
-	if (wu_evt) {
-		/* Set Wake-On-Lan address mask */
-		addr_mask = ioread32(&hw->reg->ADDR_MASK);
-		iowrite32(addr_mask, &hw->reg->WOL_ADDR_MASK);
-		/* wait busy */
-		pch_gbe_wait_clr_bit(&hw->reg->WOL_ADDR_MASK, PCH_GBE_WLA_BUSY);
-		iowrite32(0, &hw->reg->WOL_ST);
-		iowrite32((wu_evt | PCH_GBE_WLC_WOL_MODE), &hw->reg->WOL_CTRL);
-		iowrite32(0x02, &hw->reg->TCPIP_ACC);
-		iowrite32(PCH_GBE_INT_ENABLE_MASK, &hw->reg->INT_EN);
-	} else {
-		iowrite32(0, &hw->reg->WOL_CTRL);
-		iowrite32(0, &hw->reg->WOL_ST);
-	}
-	return;
-}
-
-/**
- * pch_gbe_mac_ctrl_miim - Control MIIM interface
- * @hw:   Pointer to the HW structure
- * @addr: Address of PHY
- * @dir:  Operetion. (Write or Read)
- * @reg:  Access register of PHY
- * @data: Write data.
- *
- * Returns: Read date.
- */
-u16 pch_gbe_mac_ctrl_miim(struct pch_gbe_hw *hw, u32 addr, u32 dir, u32 reg,
-			u16 data)
-{
-	u32 data_out = 0;
-	unsigned int i;
-	unsigned long flags;
-
-	spin_lock_irqsave(&hw->miim_lock, flags);
-
-	for (i = 100; i; --i) {
-		if ((ioread32(&hw->reg->MIIM) & PCH_GBE_MIIM_OPER_READY))
-			break;
-		udelay(20);
-	}
-	if (i == 0) {
-		pr_err("pch-gbe.miim won't go Ready\n");
-		spin_unlock_irqrestore(&hw->miim_lock, flags);
-		return 0;	/* No way to indicate timeout error */
-	}
-	iowrite32(((reg << PCH_GBE_MIIM_REG_ADDR_SHIFT) |
-		  (addr << PCH_GBE_MIIM_PHY_ADDR_SHIFT) |
-		  dir | data), &hw->reg->MIIM);
-	for (i = 0; i < 100; i++) {
-		udelay(20);
-		data_out = ioread32(&hw->reg->MIIM);
-		if ((data_out & PCH_GBE_MIIM_OPER_READY))
-			break;
-	}
-	spin_unlock_irqrestore(&hw->miim_lock, flags);
-
-	pr_debug("PHY %s: reg=%d, data=0x%04X\n",
-		 dir == PCH_GBE_MIIM_OPER_READ ? "READ" : "WRITE", reg,
-		 dir == PCH_GBE_MIIM_OPER_READ ? data_out : data);
-	return (u16) data_out;
-}
-
-/**
- * pch_gbe_mac_set_pause_packet - Set pause packet
- * @hw:   Pointer to the HW structure
- */
-static void pch_gbe_mac_set_pause_packet(struct pch_gbe_hw *hw)
-{
-	unsigned long tmp2, tmp3;
-
-	/* Set Pause packet */
-	tmp2 = hw->mac.addr[1];
-	tmp2 = (tmp2 << 8) | hw->mac.addr[0];
-	tmp2 = PCH_GBE_PAUSE_PKT2_VALUE | (tmp2 << 16);
-
-	tmp3 = hw->mac.addr[5];
-	tmp3 = (tmp3 << 8) | hw->mac.addr[4];
-	tmp3 = (tmp3 << 8) | hw->mac.addr[3];
-	tmp3 = (tmp3 << 8) | hw->mac.addr[2];
-
-	iowrite32(PCH_GBE_PAUSE_PKT1_VALUE, &hw->reg->PAUSE_PKT1);
-	iowrite32(tmp2, &hw->reg->PAUSE_PKT2);
-	iowrite32(tmp3, &hw->reg->PAUSE_PKT3);
-	iowrite32(PCH_GBE_PAUSE_PKT4_VALUE, &hw->reg->PAUSE_PKT4);
-	iowrite32(PCH_GBE_PAUSE_PKT5_VALUE, &hw->reg->PAUSE_PKT5);
-
-	/* Transmit Pause Packet */
-	iowrite32(PCH_GBE_PS_PKT_RQ, &hw->reg->PAUSE_REQ);
-
-	pr_debug("PAUSE_PKT1-5 reg : 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
-		 ioread32(&hw->reg->PAUSE_PKT1), ioread32(&hw->reg->PAUSE_PKT2),
-		 ioread32(&hw->reg->PAUSE_PKT3), ioread32(&hw->reg->PAUSE_PKT4),
-		 ioread32(&hw->reg->PAUSE_PKT5));
-
-	return;
-}
-
-
-/**
- * pch_gbe_alloc_queues - Allocate memory for all rings
- * @adapter:  Board private structure to initialize
- * Returns
- *	0:	Successfully
- *	Negative value:	Failed
- */
-static int pch_gbe_alloc_queues(struct pch_gbe_adapter *adapter)
-{
-	int size;
-
-	size = (int)sizeof(struct pch_gbe_tx_ring);
-	adapter->tx_ring = kzalloc(size, GFP_KERNEL);
-	if (!adapter->tx_ring)
-		return -ENOMEM;
-	size = (int)sizeof(struct pch_gbe_rx_ring);
-	adapter->rx_ring = kzalloc(size, GFP_KERNEL);
-	if (!adapter->rx_ring) {
-		kfree(adapter->tx_ring);
-		return -ENOMEM;
-	}
-	return 0;
-}
-
-/**
- * pch_gbe_init_stats - Initialize status
- * @adapter:  Board private structure to initialize
- */
-static void pch_gbe_init_stats(struct pch_gbe_adapter *adapter)
-{
-	memset(&adapter->stats, 0, sizeof(adapter->stats));
-	return;
-}
-
-/**
- * pch_gbe_init_phy - Initialize PHY
- * @adapter:  Board private structure to initialize
- * Returns
- *	0:	Successfully
- *	Negative value:	Failed
- */
-static int pch_gbe_init_phy(struct pch_gbe_adapter *adapter)
-{
-	struct net_device *netdev = adapter->netdev;
-	u32 addr;
-	u16 bmcr, stat;
-
-	/* Discover phy addr by searching addrs in order {1,0,2,..., 31} */
-	for (addr = 0; addr < PCH_GBE_PHY_REGS_LEN; addr++) {
-		adapter->mii.phy_id = (addr == 0) ? 1 : (addr == 1) ? 0 : addr;
-		bmcr = pch_gbe_mdio_read(netdev, adapter->mii.phy_id, MII_BMCR);
-		stat = pch_gbe_mdio_read(netdev, adapter->mii.phy_id, MII_BMSR);
-		stat = pch_gbe_mdio_read(netdev, adapter->mii.phy_id, MII_BMSR);
-		if (!((bmcr == 0xFFFF) || ((stat == 0) && (bmcr == 0))))
-			break;
-	}
-	adapter->hw.phy.addr = adapter->mii.phy_id;
-	pr_debug("phy_addr = %d\n", adapter->mii.phy_id);
-	if (addr == 32)
-		return -EAGAIN;
-	/* Selected the phy and isolate the rest */
-	for (addr = 0; addr < PCH_GBE_PHY_REGS_LEN; addr++) {
-		if (addr != adapter->mii.phy_id) {
-			pch_gbe_mdio_write(netdev, addr, MII_BMCR,
-					   BMCR_ISOLATE);
-		} else {
-			bmcr = pch_gbe_mdio_read(netdev, addr, MII_BMCR);
-			pch_gbe_mdio_write(netdev, addr, MII_BMCR,
-					   bmcr & ~BMCR_ISOLATE);
-		}
-	}
-
-	/* MII setup */
-	adapter->mii.phy_id_mask = 0x1F;
-	adapter->mii.reg_num_mask = 0x1F;
-	adapter->mii.dev = adapter->netdev;
-	adapter->mii.mdio_read = pch_gbe_mdio_read;
-	adapter->mii.mdio_write = pch_gbe_mdio_write;
-	adapter->mii.supports_gmii = mii_check_gmii_support(&adapter->mii);
-	return 0;
-}
-
-/**
- * pch_gbe_mdio_read - The read function for mii
- * @netdev: Network interface device structure
- * @addr:   Phy ID
- * @reg:    Access location
- * Returns
- *	0:	Successfully
- *	Negative value:	Failed
- */
-static int pch_gbe_mdio_read(struct net_device *netdev, int addr, int reg)
-{
-	struct pch_gbe_adapter *adapter = netdev_priv(netdev);
-	struct pch_gbe_hw *hw = &adapter->hw;
-
-	return pch_gbe_mac_ctrl_miim(hw, addr, PCH_GBE_HAL_MIIM_READ, reg,
-				     (u16) 0);
-}
-
-/**
- * pch_gbe_mdio_write - The write function for mii
- * @netdev: Network interface device structure
- * @addr:   Phy ID (not used)
- * @reg:    Access location
- * @data:   Write data
- */
-static void pch_gbe_mdio_write(struct net_device *netdev,
-			       int addr, int reg, int data)
-{
-	struct pch_gbe_adapter *adapter = netdev_priv(netdev);
-	struct pch_gbe_hw *hw = &adapter->hw;
-
-	pch_gbe_mac_ctrl_miim(hw, addr, PCH_GBE_HAL_MIIM_WRITE, reg, data);
-}
-
-/**
- * pch_gbe_reset_task - Reset processing at the time of transmission timeout
- * @work:  Pointer of board private structure
- */
-static void pch_gbe_reset_task(struct work_struct *work)
-{
-	struct pch_gbe_adapter *adapter;
-	adapter = container_of(work, struct pch_gbe_adapter, reset_task);
-
-	rtnl_lock();
-	pch_gbe_reinit_locked(adapter);
-	rtnl_unlock();
-}
-
-/**
- * pch_gbe_reinit_locked- Re-initialization
- * @adapter:  Board private structure
- */
-void pch_gbe_reinit_locked(struct pch_gbe_adapter *adapter)
-{
-	pch_gbe_down(adapter);
-	pch_gbe_up(adapter);
-}
-
-/**
- * pch_gbe_reset - Reset GbE
- * @adapter:  Board private structure
- */
-void pch_gbe_reset(struct pch_gbe_adapter *adapter)
-{
-	pch_gbe_mac_reset_hw(&adapter->hw);
-	/* Setup the receive address. */
-	pch_gbe_mac_init_rx_addrs(&adapter->hw, PCH_GBE_MAR_ENTRIES);
-	if (pch_gbe_hal_init_hw(&adapter->hw))
-		pr_err("Hardware Error\n");
-}
-
-/**
- * pch_gbe_free_irq - Free an interrupt
- * @adapter:  Board private structure
- */
-static void pch_gbe_free_irq(struct pch_gbe_adapter *adapter)
-{
-	struct net_device *netdev = adapter->netdev;
-
-	free_irq(adapter->pdev->irq, netdev);
-	if (adapter->have_msi) {
-		pci_disable_msi(adapter->pdev);
-		pr_debug("call pci_disable_msi\n");
-	}
-}
-
-/**
- * pch_gbe_irq_disable - Mask off interrupt generation on the NIC
- * @adapter:  Board private structure
- */
-static void pch_gbe_irq_disable(struct pch_gbe_adapter *adapter)
-{
-	struct pch_gbe_hw *hw = &adapter->hw;
-
-	atomic_inc(&adapter->irq_sem);
-	iowrite32(0, &hw->reg->INT_EN);
-	ioread32(&hw->reg->INT_ST);
-	synchronize_irq(adapter->pdev->irq);
-
-	pr_debug("INT_EN reg : 0x%08x\n", ioread32(&hw->reg->INT_EN));
-}
-
-/**
- * pch_gbe_irq_enable - Enable default interrupt generation settings
- * @adapter:  Board private structure
- */
-static void pch_gbe_irq_enable(struct pch_gbe_adapter *adapter)
-{
-	struct pch_gbe_hw *hw = &adapter->hw;
-
-	if (likely(atomic_dec_and_test(&adapter->irq_sem)))
-		iowrite32(PCH_GBE_INT_ENABLE_MASK, &hw->reg->INT_EN);
-	ioread32(&hw->reg->INT_ST);
-	pr_debug("INT_EN reg : 0x%08x\n", ioread32(&hw->reg->INT_EN));
-}
-
-
-
-/**
- * pch_gbe_setup_tctl - configure the Transmit control registers
- * @adapter:  Board private structure
- */
-static void pch_gbe_setup_tctl(struct pch_gbe_adapter *adapter)
-{
-	struct pch_gbe_hw *hw = &adapter->hw;
-	u32 tx_mode, tcpip;
-
-	tx_mode = PCH_GBE_TM_LONG_PKT |
-		PCH_GBE_TM_ST_AND_FD |
-		PCH_GBE_TM_SHORT_PKT |
-		PCH_GBE_TM_TH_TX_STRT_8 |
-		PCH_GBE_TM_TH_ALM_EMP_4 | PCH_GBE_TM_TH_ALM_FULL_8;
-
-	iowrite32(tx_mode, &hw->reg->TX_MODE);
-
-	tcpip = ioread32(&hw->reg->TCPIP_ACC);
-	tcpip |= PCH_GBE_TX_TCPIPACC_EN;
-	iowrite32(tcpip, &hw->reg->TCPIP_ACC);
-	return;
-}
-
-/**
- * pch_gbe_configure_tx - Configure Transmit Unit after Reset
- * @adapter:  Board private structure
- */
-static void pch_gbe_configure_tx(struct pch_gbe_adapter *adapter)
-{
-	struct pch_gbe_hw *hw = &adapter->hw;
-	u32 tdba, tdlen, dctrl;
-
-	pr_debug("dma addr = 0x%08llx  size = 0x%08x\n",
-		 (unsigned long long)adapter->tx_ring->dma,
-		 adapter->tx_ring->size);
-
-	/* Setup the HW Tx Head and Tail descriptor pointers */
-	tdba = adapter->tx_ring->dma;
-	tdlen = adapter->tx_ring->size - 0x10;
-	iowrite32(tdba, &hw->reg->TX_DSC_BASE);
-	iowrite32(tdlen, &hw->reg->TX_DSC_SIZE);
-	iowrite32(tdba, &hw->reg->TX_DSC_SW_P);
-
-	/* Enables Transmission DMA */
-	dctrl = ioread32(&hw->reg->DMA_CTRL);
-	dctrl |= PCH_GBE_TX_DMA_EN;
-	iowrite32(dctrl, &hw->reg->DMA_CTRL);
-}
-
-/**
- * pch_gbe_setup_rctl - Configure the receive control registers
- * @adapter:  Board private structure
- */
-static void pch_gbe_setup_rctl(struct pch_gbe_adapter *adapter)
-{
-	struct net_device *netdev = adapter->netdev;
-	struct pch_gbe_hw *hw = &adapter->hw;
-	u32 rx_mode, tcpip;
-
-	rx_mode = PCH_GBE_ADD_FIL_EN | PCH_GBE_MLT_FIL_EN |
-	PCH_GBE_RH_ALM_EMP_4 | PCH_GBE_RH_ALM_FULL_4 | PCH_GBE_RH_RD_TRG_8;
-
-	iowrite32(rx_mode, &hw->reg->RX_MODE);
-
-	tcpip = ioread32(&hw->reg->TCPIP_ACC);
-
-	if (netdev->features & NETIF_F_RXCSUM) {
-		tcpip &= ~PCH_GBE_RX_TCPIPACC_OFF;
-		tcpip |= PCH_GBE_RX_TCPIPACC_EN;
-	} else {
-		tcpip |= PCH_GBE_RX_TCPIPACC_OFF;
-		tcpip &= ~PCH_GBE_RX_TCPIPACC_EN;
-	}
-	iowrite32(tcpip, &hw->reg->TCPIP_ACC);
-	return;
-}
-
-/**
- * pch_gbe_configure_rx - Configure Receive Unit after Reset
- * @adapter:  Board private structure
- */
-static void pch_gbe_configure_rx(struct pch_gbe_adapter *adapter)
-{
-	struct pch_gbe_hw *hw = &adapter->hw;
-	u32 rdba, rdlen, rctl, rxdma;
-
-	pr_debug("dma adr = 0x%08llx  size = 0x%08x\n",
-		 (unsigned long long)adapter->rx_ring->dma,
-		 adapter->rx_ring->size);
-
-	pch_gbe_mac_force_mac_fc(hw);
-
-	/* Disables Receive MAC */
-	rctl = ioread32(&hw->reg->MAC_RX_EN);
-	iowrite32((rctl & ~PCH_GBE_MRE_MAC_RX_EN), &hw->reg->MAC_RX_EN);
-
-	/* Disables Receive DMA */
-	rxdma = ioread32(&hw->reg->DMA_CTRL);
-	rxdma &= ~PCH_GBE_RX_DMA_EN;
-	iowrite32(rxdma, &hw->reg->DMA_CTRL);
-
-	pr_debug("MAC_RX_EN reg = 0x%08x  DMA_CTRL reg = 0x%08x\n",
-		 ioread32(&hw->reg->MAC_RX_EN),
-		 ioread32(&hw->reg->DMA_CTRL));
-
-	/* Setup the HW Rx Head and Tail Descriptor Pointers and
-	 * the Base and Length of the Rx Descriptor Ring */
-	rdba = adapter->rx_ring->dma;
-	rdlen = adapter->rx_ring->size - 0x10;
-	iowrite32(rdba, &hw->reg->RX_DSC_BASE);
-	iowrite32(rdlen, &hw->reg->RX_DSC_SIZE);
-	iowrite32((rdba + rdlen), &hw->reg->RX_DSC_SW_P);
-
-	/* Enables Receive DMA */
-	rxdma = ioread32(&hw->reg->DMA_CTRL);
-	rxdma |= PCH_GBE_RX_DMA_EN;
-	iowrite32(rxdma, &hw->reg->DMA_CTRL);
-	/* Enables Receive */
-	iowrite32(PCH_GBE_MRE_MAC_RX_EN, &hw->reg->MAC_RX_EN);
-}
-
-/**
- * pch_gbe_unmap_and_free_tx_resource - Unmap and free tx socket buffer
- * @adapter:     Board private structure
- * @buffer_info: Buffer information structure
- */
-static void pch_gbe_unmap_and_free_tx_resource(
-	struct pch_gbe_adapter *adapter, struct pch_gbe_buffer *buffer_info)
-{
-	if (buffer_info->mapped) {
-		dma_unmap_single(&adapter->pdev->dev, buffer_info->dma,
-				 buffer_info->length, DMA_TO_DEVICE);
-		buffer_info->mapped = false;
-	}
-	if (buffer_info->skb) {
-		dev_kfree_skb_any(buffer_info->skb);
-		buffer_info->skb = NULL;
-	}
-}
-
-/**
- * pch_gbe_unmap_and_free_rx_resource - Unmap and free rx socket buffer
- * @adapter:      Board private structure
- * @buffer_info:  Buffer information structure
- */
-static void pch_gbe_unmap_and_free_rx_resource(
-					struct pch_gbe_adapter *adapter,
-					struct pch_gbe_buffer *buffer_info)
-{
-	if (buffer_info->mapped) {
-		dma_unmap_single(&adapter->pdev->dev, buffer_info->dma,
-				 buffer_info->length, DMA_FROM_DEVICE);
-		buffer_info->mapped = false;
-	}
-	if (buffer_info->skb) {
-		dev_kfree_skb_any(buffer_info->skb);
-		buffer_info->skb = NULL;
-	}
-}
-
-/**
- * pch_gbe_clean_tx_ring - Free Tx Buffers
- * @adapter:  Board private structure
- * @tx_ring:  Ring to be cleaned
- */
-static void pch_gbe_clean_tx_ring(struct pch_gbe_adapter *adapter,
-				   struct pch_gbe_tx_ring *tx_ring)
-{
-	struct pch_gbe_hw *hw = &adapter->hw;
-	struct pch_gbe_buffer *buffer_info;
-	unsigned long size;
-	unsigned int i;
-
-	/* Free all the Tx ring sk_buffs */
-	for (i = 0; i < tx_ring->count; i++) {
-		buffer_info = &tx_ring->buffer_info[i];
-		pch_gbe_unmap_and_free_tx_resource(adapter, buffer_info);
-	}
-	pr_debug("call pch_gbe_unmap_and_free_tx_resource() %d count\n", i);
-
-	size = (unsigned long)sizeof(struct pch_gbe_buffer) * tx_ring->count;
-	memset(tx_ring->buffer_info, 0, size);
-
-	/* Zero out the descriptor ring */
-	memset(tx_ring->desc, 0, tx_ring->size);
-	tx_ring->next_to_use = 0;
-	tx_ring->next_to_clean = 0;
-	iowrite32(tx_ring->dma, &hw->reg->TX_DSC_HW_P);
-	iowrite32((tx_ring->size - 0x10), &hw->reg->TX_DSC_SIZE);
-}
-
-/**
- * pch_gbe_clean_rx_ring - Free Rx Buffers
- * @adapter:  Board private structure
- * @rx_ring:  Ring to free buffers from
- */
-static void
-pch_gbe_clean_rx_ring(struct pch_gbe_adapter *adapter,
-		      struct pch_gbe_rx_ring *rx_ring)
-{
-	struct pch_gbe_hw *hw = &adapter->hw;
-	struct pch_gbe_buffer *buffer_info;
-	unsigned long size;
-	unsigned int i;
-
-	/* Free all the Rx ring sk_buffs */
-	for (i = 0; i < rx_ring->count; i++) {
-		buffer_info = &rx_ring->buffer_info[i];
-		pch_gbe_unmap_and_free_rx_resource(adapter, buffer_info);
-	}
-	pr_debug("call pch_gbe_unmap_and_free_rx_resource() %d count\n", i);
-	size = (unsigned long)sizeof(struct pch_gbe_buffer) * rx_ring->count;
-	memset(rx_ring->buffer_info, 0, size);
-
-	/* Zero out the descriptor ring */
-	memset(rx_ring->desc, 0, rx_ring->size);
-	rx_ring->next_to_clean = 0;
-	rx_ring->next_to_use = 0;
-	iowrite32(rx_ring->dma, &hw->reg->RX_DSC_HW_P);
-	iowrite32((rx_ring->size - 0x10), &hw->reg->RX_DSC_SIZE);
-}
-
-static void pch_gbe_set_rgmii_ctrl(struct pch_gbe_adapter *adapter, u16 speed,
-				    u16 duplex)
-{
-	struct pch_gbe_hw *hw = &adapter->hw;
-	unsigned long rgmii = 0;
-
-	/* Set the RGMII control. */
-#ifdef PCH_GBE_MAC_IFOP_RGMII
-	switch (speed) {
-	case SPEED_10:
-		rgmii = (PCH_GBE_RGMII_RATE_2_5M |
-			 PCH_GBE_MAC_RGMII_CTRL_SETTING);
-		break;
-	case SPEED_100:
-		rgmii = (PCH_GBE_RGMII_RATE_25M |
-			 PCH_GBE_MAC_RGMII_CTRL_SETTING);
-		break;
-	case SPEED_1000:
-		rgmii = (PCH_GBE_RGMII_RATE_125M |
-			 PCH_GBE_MAC_RGMII_CTRL_SETTING);
-		break;
-	}
-	iowrite32(rgmii, &hw->reg->RGMII_CTRL);
-#else	/* GMII */
-	rgmii = 0;
-	iowrite32(rgmii, &hw->reg->RGMII_CTRL);
-#endif
-}
-static void pch_gbe_set_mode(struct pch_gbe_adapter *adapter, u16 speed,
-			      u16 duplex)
-{
-	struct net_device *netdev = adapter->netdev;
-	struct pch_gbe_hw *hw = &adapter->hw;
-	unsigned long mode = 0;
-
-	/* Set the communication mode */
-	switch (speed) {
-	case SPEED_10:
-		mode = PCH_GBE_MODE_MII_ETHER;
-		netdev->tx_queue_len = 10;
-		break;
-	case SPEED_100:
-		mode = PCH_GBE_MODE_MII_ETHER;
-		netdev->tx_queue_len = 100;
-		break;
-	case SPEED_1000:
-		mode = PCH_GBE_MODE_GMII_ETHER;
-		break;
-	}
-	if (duplex == DUPLEX_FULL)
-		mode |= PCH_GBE_MODE_FULL_DUPLEX;
-	else
-		mode |= PCH_GBE_MODE_HALF_DUPLEX;
-	iowrite32(mode, &hw->reg->MODE);
-}
-
-/**
- * pch_gbe_watchdog - Watchdog process
- * @data:  Board private structure
- */
-static void pch_gbe_watchdog(unsigned long data)
-{
-	struct pch_gbe_adapter *adapter = (struct pch_gbe_adapter *)data;
-	struct net_device *netdev = adapter->netdev;
-	struct pch_gbe_hw *hw = &adapter->hw;
-
-	pr_debug("right now = %ld\n", jiffies);
-
-	pch_gbe_update_stats(adapter);
-	if ((mii_link_ok(&adapter->mii)) && (!netif_carrier_ok(netdev))) {
-		struct ethtool_cmd cmd = { .cmd = ETHTOOL_GSET };
-		netdev->tx_queue_len = adapter->tx_queue_len;
-		/* mii library handles link maintenance tasks */
-		if (mii_ethtool_gset(&adapter->mii, &cmd)) {
-			pr_err("ethtool get setting Error\n");
-			mod_timer(&adapter->watchdog_timer,
-				  round_jiffies(jiffies +
-						PCH_GBE_WATCHDOG_PERIOD));
-			return;
-		}
-		hw->mac.link_speed = ethtool_cmd_speed(&cmd);
-		hw->mac.link_duplex = cmd.duplex;
-		/* Set the RGMII control. */
-		pch_gbe_set_rgmii_ctrl(adapter, hw->mac.link_speed,
-						hw->mac.link_duplex);
-		/* Set the communication mode */
-		pch_gbe_set_mode(adapter, hw->mac.link_speed,
-				 hw->mac.link_duplex);
-		netdev_dbg(netdev,
-			   "Link is Up %d Mbps %s-Duplex\n",
-			   hw->mac.link_speed,
-			   cmd.duplex == DUPLEX_FULL ? "Full" : "Half");
-		netif_carrier_on(netdev);
-		netif_wake_queue(netdev);
-	} else if ((!mii_link_ok(&adapter->mii)) &&
-		   (netif_carrier_ok(netdev))) {
-		netdev_dbg(netdev, "NIC Link is Down\n");
-		hw->mac.link_speed = SPEED_10;
-		hw->mac.link_duplex = DUPLEX_HALF;
-		netif_carrier_off(netdev);
-		netif_stop_queue(netdev);
-	}
-	mod_timer(&adapter->watchdog_timer,
-		  round_jiffies(jiffies + PCH_GBE_WATCHDOG_PERIOD));
-}
-
-/**
- * pch_gbe_tx_queue - Carry out queuing of the transmission data
- * @adapter:  Board private structure
- * @tx_ring:  Tx descriptor ring structure
- * @skb:      Sockt buffer structure
- */
-static void pch_gbe_tx_queue(struct pch_gbe_adapter *adapter,
-			      struct pch_gbe_tx_ring *tx_ring,
-			      struct sk_buff *skb)
-{
-	struct pch_gbe_hw *hw = &adapter->hw;
-	struct pch_gbe_tx_desc *tx_desc;
-	struct pch_gbe_buffer *buffer_info;
-	struct sk_buff *tmp_skb;
-	unsigned int frame_ctrl;
-	unsigned int ring_num;
-	unsigned long flags;
-
-	/*-- Set frame control --*/
-	frame_ctrl = 0;
-	if (unlikely(skb->len < PCH_GBE_SHORT_PKT))
-		frame_ctrl |= PCH_GBE_TXD_CTRL_APAD;
-	if (skb->ip_summed == CHECKSUM_NONE)
-		frame_ctrl |= PCH_GBE_TXD_CTRL_TCPIP_ACC_OFF;
-
-	/* Performs checksum processing */
-	/*
-	 * It is because the hardware accelerator does not support a checksum,
-	 * when the received data size is less than 64 bytes.
-	 */
-	if (skb->len < PCH_GBE_SHORT_PKT && skb->ip_summed != CHECKSUM_NONE) {
-		frame_ctrl |= PCH_GBE_TXD_CTRL_APAD |
-			      PCH_GBE_TXD_CTRL_TCPIP_ACC_OFF;
-		if (skb->protocol == htons(ETH_P_IP)) {
-			struct iphdr *iph = ip_hdr(skb);
-			unsigned int offset;
-			iph->check = 0;
-			iph->check = ip_fast_csum((u8 *) iph, iph->ihl);
-			offset = skb_transport_offset(skb);
-			if (iph->protocol == IPPROTO_TCP) {
-				skb->csum = 0;
-				tcp_hdr(skb)->check = 0;
-				skb->csum = skb_checksum(skb, offset,
-							 skb->len - offset, 0);
-				tcp_hdr(skb)->check =
-					csum_tcpudp_magic(iph->saddr,
-							  iph->daddr,
-							  skb->len - offset,
-							  IPPROTO_TCP,
-							  skb->csum);
-			} else if (iph->protocol == IPPROTO_UDP) {
-				skb->csum = 0;
-				udp_hdr(skb)->check = 0;
-				skb->csum =
-					skb_checksum(skb, offset,
-						     skb->len - offset, 0);
-				udp_hdr(skb)->check =
-					csum_tcpudp_magic(iph->saddr,
-							  iph->daddr,
-							  skb->len - offset,
-							  IPPROTO_UDP,
-							  skb->csum);
-			}
-		}
-	}
-	spin_lock_irqsave(&tx_ring->tx_lock, flags);
-	ring_num = tx_ring->next_to_use;
-	if (unlikely((ring_num + 1) == tx_ring->count))
-		tx_ring->next_to_use = 0;
-	else
-		tx_ring->next_to_use = ring_num + 1;
-
-	spin_unlock_irqrestore(&tx_ring->tx_lock, flags);
-	buffer_info = &tx_ring->buffer_info[ring_num];
-	tmp_skb = buffer_info->skb;
-
-	/* [Header:14][payload] ---> [Header:14][paddong:2][payload]    */
-	memcpy(tmp_skb->data, skb->data, ETH_HLEN);
-	tmp_skb->data[ETH_HLEN] = 0x00;
-	tmp_skb->data[ETH_HLEN + 1] = 0x00;
-	tmp_skb->len = skb->len;
-	memcpy(&tmp_skb->data[ETH_HLEN + 2], &skb->data[ETH_HLEN],
-	       (skb->len - ETH_HLEN));
-	/*-- Set Buffer information --*/
-	buffer_info->length = tmp_skb->len;
-	buffer_info->dma = dma_map_single(&adapter->pdev->dev, tmp_skb->data,
-					  buffer_info->length,
-					  DMA_TO_DEVICE);
-	if (dma_mapping_error(&adapter->pdev->dev, buffer_info->dma)) {
-		pr_err("TX DMA map failed\n");
-		buffer_info->dma = 0;
-		buffer_info->time_stamp = 0;
-		tx_ring->next_to_use = ring_num;
-		return;
-	}
-	buffer_info->mapped = true;
-	buffer_info->time_stamp = jiffies;
-
-	/*-- Set Tx descriptor --*/
-	tx_desc = PCH_GBE_TX_DESC(*tx_ring, ring_num);
-	tx_desc->buffer_addr = (buffer_info->dma);
-	tx_desc->length = (tmp_skb->len);
-	tx_desc->tx_words_eob = ((tmp_skb->len + 3));
-	tx_desc->tx_frame_ctrl = (frame_ctrl);
-	tx_desc->gbec_status = (DSC_INIT16);
-
-	if (unlikely(++ring_num == tx_ring->count))
-		ring_num = 0;
-
-	/* Update software pointer of TX descriptor */
-	iowrite32(tx_ring->dma +
-		  (int)sizeof(struct pch_gbe_tx_desc) * ring_num,
-		  &hw->reg->TX_DSC_SW_P);
-	dev_kfree_skb_any(skb);
-}
-
-/**
- * pch_gbe_update_stats - Update the board statistics counters
- * @adapter:  Board private structure
- */
-void pch_gbe_update_stats(struct pch_gbe_adapter *adapter)
-{
-	struct net_device *netdev = adapter->netdev;
-	struct pci_dev *pdev = adapter->pdev;
-	struct pch_gbe_hw_stats *stats = &adapter->stats;
-	unsigned long flags;
-
-	/*
-	 * Prevent stats update while adapter is being reset, or if the pci
-	 * connection is down.
-	 */
-	if ((pdev->error_state) && (pdev->error_state != pci_channel_io_normal))
-		return;
-
-	spin_lock_irqsave(&adapter->stats_lock, flags);
-
-	/* Update device status "adapter->stats" */
-	stats->rx_errors = stats->rx_crc_errors + stats->rx_frame_errors;
-	stats->tx_errors = stats->tx_length_errors +
-	    stats->tx_aborted_errors +
-	    stats->tx_carrier_errors + stats->tx_timeout_count;
-
-	/* Update network device status "adapter->net_stats" */
-	netdev->stats.rx_packets = stats->rx_packets;
-	netdev->stats.rx_bytes = stats->rx_bytes;
-	netdev->stats.rx_dropped = stats->rx_dropped;
-	netdev->stats.tx_packets = stats->tx_packets;
-	netdev->stats.tx_bytes = stats->tx_bytes;
-	netdev->stats.tx_dropped = stats->tx_dropped;
-	/* Fill out the OS statistics structure */
-	netdev->stats.multicast = stats->multicast;
-	netdev->stats.collisions = stats->collisions;
-	/* Rx Errors */
-	netdev->stats.rx_errors = stats->rx_errors;
-	netdev->stats.rx_crc_errors = stats->rx_crc_errors;
-	netdev->stats.rx_frame_errors = stats->rx_frame_errors;
-	/* Tx Errors */
-	netdev->stats.tx_errors = stats->tx_errors;
-	netdev->stats.tx_aborted_errors = stats->tx_aborted_errors;
-	netdev->stats.tx_carrier_errors = stats->tx_carrier_errors;
-
-	spin_unlock_irqrestore(&adapter->stats_lock, flags);
-}
-
-/**
- * pch_gbe_intr - Interrupt Handler
- * @irq:   Interrupt number
- * @data:  Pointer to a network interface device structure
- * Returns
- *	- IRQ_HANDLED:	Our interrupt
- *	- IRQ_NONE:	Not our interrupt
- */
-static irqreturn_t pch_gbe_intr(int irq, void *data)
-{
-	struct net_device *netdev = data;
-	struct pch_gbe_adapter *adapter = netdev_priv(netdev);
-	struct pch_gbe_hw *hw = &adapter->hw;
-	u32 int_st;
-	u32 int_en;
-
-	/* Check request status */
-	int_st = ioread32(&hw->reg->INT_ST);
-	int_st = int_st & ioread32(&hw->reg->INT_EN);
-	/* When request status is no interruption factor */
-	if (unlikely(!int_st))
-		return IRQ_NONE;	/* Not our interrupt. End processing. */
-	pr_debug("%s occur int_st = 0x%08x\n", __func__, int_st);
-	if (int_st & PCH_GBE_INT_RX_FRAME_ERR)
-		adapter->stats.intr_rx_frame_err_count++;
-	if (int_st & PCH_GBE_INT_RX_FIFO_ERR)
-		adapter->stats.intr_rx_fifo_err_count++;
-	if (int_st & PCH_GBE_INT_RX_DMA_ERR)
-		adapter->stats.intr_rx_dma_err_count++;
-	if (int_st & PCH_GBE_INT_TX_FIFO_ERR)
-		adapter->stats.intr_tx_fifo_err_count++;
-	if (int_st & PCH_GBE_INT_TX_DMA_ERR)
-		adapter->stats.intr_tx_dma_err_count++;
-	if (int_st & PCH_GBE_INT_TCPIP_ERR)
-		adapter->stats.intr_tcpip_err_count++;
-	/* When Rx descriptor is empty  */
-	if ((int_st & PCH_GBE_INT_RX_DSC_EMP)) {
-		adapter->stats.intr_rx_dsc_empty_count++;
-		pr_err("Rx descriptor is empty\n");
-		int_en = ioread32(&hw->reg->INT_EN);
-		iowrite32((int_en & ~PCH_GBE_INT_RX_DSC_EMP), &hw->reg->INT_EN);
-		if (hw->mac.tx_fc_enable) {
-			/* Set Pause packet */
-			pch_gbe_mac_set_pause_packet(hw);
-		}
-		if ((int_en & (PCH_GBE_INT_RX_DMA_CMPLT | PCH_GBE_INT_TX_CMPLT))
-		    == 0) {
-			return IRQ_HANDLED;
-		}
-	}
-
-	/* When request status is Receive interruption */
-	if ((int_st & (PCH_GBE_INT_RX_DMA_CMPLT | PCH_GBE_INT_TX_CMPLT))) {
-		if (likely(napi_schedule_prep(&adapter->napi))) {
-			/* Enable only Rx Descriptor empty */
-			atomic_inc(&adapter->irq_sem);
-			int_en = ioread32(&hw->reg->INT_EN);
-			int_en &=
-			    ~(PCH_GBE_INT_RX_DMA_CMPLT | PCH_GBE_INT_TX_CMPLT);
-			iowrite32(int_en, &hw->reg->INT_EN);
-			/* Start polling for NAPI */
-			__napi_schedule(&adapter->napi);
-		}
-	}
-	pr_debug("return = 0x%08x  INT_EN reg = 0x%08x\n",
-		 IRQ_HANDLED, ioread32(&hw->reg->INT_EN));
-	return IRQ_HANDLED;
-}
-
-/**
- * pch_gbe_alloc_rx_buffers - Replace used receive buffers; legacy & extended
- * @adapter:       Board private structure
- * @rx_ring:       Rx descriptor ring
- * @cleaned_count: Cleaned count
- */
-static void
-pch_gbe_alloc_rx_buffers(struct pch_gbe_adapter *adapter,
-			 struct pch_gbe_rx_ring *rx_ring, int cleaned_count)
-{
-	struct net_device *netdev = adapter->netdev;
-	struct pci_dev *pdev = adapter->pdev;
-	struct pch_gbe_hw *hw = &adapter->hw;
-	struct pch_gbe_rx_desc *rx_desc;
-	struct pch_gbe_buffer *buffer_info;
-	struct sk_buff *skb;
-	unsigned int i;
-	unsigned int bufsz;
-
-	bufsz = adapter->rx_buffer_len + PCH_GBE_DMA_ALIGN;
-	i = rx_ring->next_to_use;
-
-	while ((cleaned_count--)) {
-		buffer_info = &rx_ring->buffer_info[i];
-		skb = buffer_info->skb;
-		if (skb) {
-			skb_trim(skb, 0);
-		} else {
-			skb = netdev_alloc_skb(netdev, bufsz);
-			if (unlikely(!skb)) {
-				/* Better luck next round */
-				adapter->stats.rx_alloc_buff_failed++;
-				break;
-			}
-			/* 64byte align */
-			skb_reserve(skb, PCH_GBE_DMA_ALIGN);
-
-			buffer_info->skb = skb;
-			buffer_info->length = adapter->rx_buffer_len;
-		}
-		buffer_info->dma = dma_map_single(&pdev->dev,
-						  skb->data,
-						  buffer_info->length,
-						  DMA_FROM_DEVICE);
-		if (dma_mapping_error(&adapter->pdev->dev, buffer_info->dma)) {
-			dev_kfree_skb(skb);
-			buffer_info->skb = NULL;
-			buffer_info->dma = 0;
-			adapter->stats.rx_alloc_buff_failed++;
-			break; /* while !buffer_info->skb */
-		}
-		buffer_info->mapped = true;
-		rx_desc = PCH_GBE_RX_DESC(*rx_ring, i);
-		rx_desc->buffer_addr = (buffer_info->dma);
-		rx_desc->gbec_status = DSC_INIT16;
-
-		pr_debug("i = %d  buffer_info->dma = 0x08%llx  buffer_info->length = 0x%x\n",
-			 i, (unsigned long long)buffer_info->dma,
-			 buffer_info->length);
-
-		if (unlikely(++i == rx_ring->count))
-			i = 0;
-	}
-	if (likely(rx_ring->next_to_use != i)) {
-		rx_ring->next_to_use = i;
-		if (unlikely(i-- == 0))
-			i = (rx_ring->count - 1);
-		iowrite32(rx_ring->dma +
-			  (int)sizeof(struct pch_gbe_rx_desc) * i,
-			  &hw->reg->RX_DSC_SW_P);
-	}
-	return;
-}
-
-/**
- * pch_gbe_alloc_tx_buffers - Allocate transmit buffers
- * @adapter:   Board private structure
- * @tx_ring:   Tx descriptor ring
- */
-static void pch_gbe_alloc_tx_buffers(struct pch_gbe_adapter *adapter,
-					struct pch_gbe_tx_ring *tx_ring)
-{
-	struct pch_gbe_buffer *buffer_info;
-	struct sk_buff *skb;
-	unsigned int i;
-	unsigned int bufsz;
-	struct pch_gbe_tx_desc *tx_desc;
-
-	bufsz =
-	    adapter->hw.mac.max_frame_size + PCH_GBE_DMA_ALIGN + NET_IP_ALIGN;
-
-	for (i = 0; i < tx_ring->count; i++) {
-		buffer_info = &tx_ring->buffer_info[i];
-		skb = netdev_alloc_skb(adapter->netdev, bufsz);
-		skb_reserve(skb, PCH_GBE_DMA_ALIGN);
-		buffer_info->skb = skb;
-		tx_desc = PCH_GBE_TX_DESC(*tx_ring, i);
-		tx_desc->gbec_status = (DSC_INIT16);
-	}
-	return;
-}
-
-/**
- * pch_gbe_clean_tx - Reclaim resources after transmit completes
- * @adapter:   Board private structure
- * @tx_ring:   Tx descriptor ring
- * Returns
- *	true:  Cleaned the descriptor
- *	false: Not cleaned the descriptor
- */
-static bool
-pch_gbe_clean_tx(struct pch_gbe_adapter *adapter,
-		 struct pch_gbe_tx_ring *tx_ring)
-{
-	struct pch_gbe_tx_desc *tx_desc;
-	struct pch_gbe_buffer *buffer_info;
-	struct sk_buff *skb;
-	unsigned int i;
-	unsigned int cleaned_count = 0;
-	bool cleaned = false;
-
-	pr_debug("next_to_clean : %d\n", tx_ring->next_to_clean);
-
-	i = tx_ring->next_to_clean;
-	tx_desc = PCH_GBE_TX_DESC(*tx_ring, i);
-	pr_debug("gbec_status:0x%04x  dma_status:0x%04x\n",
-		 tx_desc->gbec_status, tx_desc->dma_status);
-
-	while ((tx_desc->gbec_status & DSC_INIT16) == 0x0000) {
-		pr_debug("gbec_status:0x%04x\n", tx_desc->gbec_status);
-		cleaned = true;
-		buffer_info = &tx_ring->buffer_info[i];
-		skb = buffer_info->skb;
-
-		if ((tx_desc->gbec_status & PCH_GBE_TXD_GMAC_STAT_ABT)) {
-			adapter->stats.tx_aborted_errors++;
-			pr_err("Transfer Abort Error\n");
-		} else if ((tx_desc->gbec_status & PCH_GBE_TXD_GMAC_STAT_CRSER)
-			  ) {
-			adapter->stats.tx_carrier_errors++;
-			pr_err("Transfer Carrier Sense Error\n");
-		} else if ((tx_desc->gbec_status & PCH_GBE_TXD_GMAC_STAT_EXCOL)
-			  ) {
-			adapter->stats.tx_aborted_errors++;
-			pr_err("Transfer Collision Abort Error\n");
-		} else if ((tx_desc->gbec_status &
-			    (PCH_GBE_TXD_GMAC_STAT_SNGCOL |
-			     PCH_GBE_TXD_GMAC_STAT_MLTCOL))) {
-			adapter->stats.collisions++;
-			adapter->stats.tx_packets++;
-			adapter->stats.tx_bytes += skb->len;
-			pr_debug("Transfer Collision\n");
-		} else if ((tx_desc->gbec_status & PCH_GBE_TXD_GMAC_STAT_CMPLT)
-			  ) {
-			adapter->stats.tx_packets++;
-			adapter->stats.tx_bytes += skb->len;
-		}
-		if (buffer_info->mapped) {
-			pr_debug("unmap buffer_info->dma : %d\n", i);
-			dma_unmap_single(&adapter->pdev->dev, buffer_info->dma,
-					 buffer_info->length, DMA_TO_DEVICE);
-			buffer_info->mapped = false;
-		}
-		if (buffer_info->skb) {
-			pr_debug("trim buffer_info->skb : %d\n", i);
-			skb_trim(buffer_info->skb, 0);
-		}
-		tx_desc->gbec_status = DSC_INIT16;
-		if (unlikely(++i == tx_ring->count))
-			i = 0;
-		tx_desc = PCH_GBE_TX_DESC(*tx_ring, i);
-
-		/* weight of a sort for tx, to avoid endless transmit cleanup */
-		if (cleaned_count++ == PCH_GBE_TX_WEIGHT)
-			break;
-	}
-	pr_debug("called pch_gbe_unmap_and_free_tx_resource() %d count\n",
-		 cleaned_count);
-	/* Recover from running out of Tx resources in xmit_frame */
-	if (unlikely(cleaned && (netif_queue_stopped(adapter->netdev)))) {
-		netif_wake_queue(adapter->netdev);
-		adapter->stats.tx_restart_count++;
-		pr_debug("Tx wake queue\n");
-	}
-	spin_lock(&adapter->tx_queue_lock);
-	tx_ring->next_to_clean = i;
-	spin_unlock(&adapter->tx_queue_lock);
-	pr_debug("next_to_clean : %d\n", tx_ring->next_to_clean);
-	return cleaned;
-}
-
-/**
- * pch_gbe_clean_rx - Send received data up the network stack; legacy
- * @adapter:     Board private structure
- * @rx_ring:     Rx descriptor ring
- * @work_done:   Completed count
- * @work_to_do:  Request count
- * Returns
- *	true:  Cleaned the descriptor
- *	false: Not cleaned the descriptor
- */
-static bool
-pch_gbe_clean_rx(struct pch_gbe_adapter *adapter,
-		 struct pch_gbe_rx_ring *rx_ring,
-		 int *work_done, int work_to_do)
-{
-	struct net_device *netdev = adapter->netdev;
-	struct pci_dev *pdev = adapter->pdev;
-	struct pch_gbe_buffer *buffer_info;
-	struct pch_gbe_rx_desc *rx_desc;
-	u32 length;
-	unsigned int i;
-	unsigned int cleaned_count = 0;
-	bool cleaned = false;
-	struct sk_buff *skb, *new_skb;
-	u8 dma_status;
-	u16 gbec_status;
-	u32 tcp_ip_status;
-
-	i = rx_ring->next_to_clean;
-
-	while (*work_done < work_to_do) {
-		/* Check Rx descriptor status */
-		rx_desc = PCH_GBE_RX_DESC(*rx_ring, i);
-		if (rx_desc->gbec_status == DSC_INIT16)
-			break;
-		cleaned = true;
-		cleaned_count++;
-
-		dma_status = rx_desc->dma_status;
-		gbec_status = rx_desc->gbec_status;
-		tcp_ip_status = rx_desc->tcp_ip_status;
-		rx_desc->gbec_status = DSC_INIT16;
-		buffer_info = &rx_ring->buffer_info[i];
-		skb = buffer_info->skb;
-
-		/* unmap dma */
-		dma_unmap_single(&pdev->dev, buffer_info->dma,
-				   buffer_info->length, DMA_FROM_DEVICE);
-		buffer_info->mapped = false;
-		/* Prefetch the packet */
-		prefetch(skb->data);
-
-		pr_debug("RxDecNo = 0x%04x  Status[DMA:0x%02x GBE:0x%04x "
-			 "TCP:0x%08x]  BufInf = 0x%p\n",
-			 i, dma_status, gbec_status, tcp_ip_status,
-			 buffer_info);
-		/* Error check */
-		if (unlikely(gbec_status & PCH_GBE_RXD_GMAC_STAT_NOTOCTAL)) {
-			adapter->stats.rx_frame_errors++;
-			pr_err("Receive Not Octal Error\n");
-		} else if (unlikely(gbec_status &
-				PCH_GBE_RXD_GMAC_STAT_NBLERR)) {
-			adapter->stats.rx_frame_errors++;
-			pr_err("Receive Nibble Error\n");
-		} else if (unlikely(gbec_status &
-				PCH_GBE_RXD_GMAC_STAT_CRCERR)) {
-			adapter->stats.rx_crc_errors++;
-			pr_err("Receive CRC Error\n");
-		} else {
-			/* get receive length */
-			/* length convert[-3] */
-			length = (rx_desc->rx_words_eob) - 3;
-
-			/* Decide the data conversion method */
-			if (!(netdev->features & NETIF_F_RXCSUM)) {
-				/* [Header:14][payload] */
-				if (NET_IP_ALIGN) {
-					/* Because alignment differs,
-					 * the new_skb is newly allocated,
-					 * and data is copied to new_skb.*/
-					new_skb = netdev_alloc_skb(netdev,
-							 length + NET_IP_ALIGN);
-					if (!new_skb) {
-						/* dorrop error */
-						pr_err("New skb allocation "
-							"Error\n");
-						goto dorrop;
-					}
-					skb_reserve(new_skb, NET_IP_ALIGN);
-					memcpy(new_skb->data, skb->data,
-					       length);
-					skb = new_skb;
-				} else {
-					/* DMA buffer is used as SKB as it is.*/
-					buffer_info->skb = NULL;
-				}
-			} else {
-				/* [Header:14][padding:2][payload] */
-				/* The length includes padding length */
-				length = length - PCH_GBE_DMA_PADDING;
-				if ((length < copybreak) ||
-				    (NET_IP_ALIGN != PCH_GBE_DMA_PADDING)) {
-					/* Because alignment differs,
-					 * the new_skb is newly allocated,
-					 * and data is copied to new_skb.
-					 * Padding data is deleted
-					 * at the time of a copy.*/
-					new_skb = netdev_alloc_skb(netdev,
-							 length + NET_IP_ALIGN);
-					if (!new_skb) {
-						/* dorrop error */
-						pr_err("New skb allocation "
-							"Error\n");
-						goto dorrop;
-					}
-					skb_reserve(new_skb, NET_IP_ALIGN);
-					memcpy(new_skb->data, skb->data,
-					       ETH_HLEN);
-					memcpy(&new_skb->data[ETH_HLEN],
-					       &skb->data[ETH_HLEN +
-					       PCH_GBE_DMA_PADDING],
-					       length - ETH_HLEN);
-					skb = new_skb;
-				} else {
-					/* Padding data is deleted
-					 * by moving header data.*/
-					memmove(&skb->data[PCH_GBE_DMA_PADDING],
-						&skb->data[0], ETH_HLEN);
-					skb_reserve(skb, NET_IP_ALIGN);
-					buffer_info->skb = NULL;
-				}
-			}
-			/* The length includes FCS length */
-			length = length - ETH_FCS_LEN;
-			/* update status of driver */
-			adapter->stats.rx_bytes += length;
-			adapter->stats.rx_packets++;
-			if ((gbec_status & PCH_GBE_RXD_GMAC_STAT_MARMLT))
-				adapter->stats.multicast++;
-			/* Write meta date of skb */
-			skb_put(skb, length);
-			skb->protocol = eth_type_trans(skb, netdev);
-			if (tcp_ip_status & PCH_GBE_RXD_ACC_STAT_TCPIPOK)
-				skb->ip_summed = CHECKSUM_NONE;
-			else
-				skb->ip_summed = CHECKSUM_UNNECESSARY;
-
-			napi_gro_receive(&adapter->napi, skb);
-			(*work_done)++;
-			pr_debug("Receive skb->ip_summed: %d length: %d\n",
-				 skb->ip_summed, length);
-		}
-dorrop:
-		/* return some buffers to hardware, one at a time is too slow */
-		if (unlikely(cleaned_count >= PCH_GBE_RX_BUFFER_WRITE)) {
-			pch_gbe_alloc_rx_buffers(adapter, rx_ring,
-						 cleaned_count);
-			cleaned_count = 0;
-		}
-		if (++i == rx_ring->count)
-			i = 0;
-	}
-	rx_ring->next_to_clean = i;
-	if (cleaned_count)
-		pch_gbe_alloc_rx_buffers(adapter, rx_ring, cleaned_count);
-	return cleaned;
-}
-
-/**
- * pch_gbe_setup_tx_resources - Allocate Tx resources (Descriptors)
- * @adapter:  Board private structure
- * @tx_ring:  Tx descriptor ring (for a specific queue) to setup
- * Returns
- *	0:		Successfully
- *	Negative value:	Failed
- */
-int pch_gbe_setup_tx_resources(struct pch_gbe_adapter *adapter,
-				struct pch_gbe_tx_ring *tx_ring)
-{
-	struct pci_dev *pdev = adapter->pdev;
-	struct pch_gbe_tx_desc *tx_desc;
-	int size;
-	int desNo;
-
-	size = (int)sizeof(struct pch_gbe_buffer) * tx_ring->count;
-	tx_ring->buffer_info = vzalloc(size);
-	if (!tx_ring->buffer_info) {
-		pr_err("Unable to allocate memory for the buffer information\n");
-		return -ENOMEM;
-	}
-
-	tx_ring->size = tx_ring->count * (int)sizeof(struct pch_gbe_tx_desc);
-
-	tx_ring->desc = dma_alloc_coherent(&pdev->dev, tx_ring->size,
-					   &tx_ring->dma, GFP_KERNEL);
-	if (!tx_ring->desc) {
-		vfree(tx_ring->buffer_info);
-		pr_err("Unable to allocate memory for the transmit descriptor ring\n");
-		return -ENOMEM;
-	}
-	memset(tx_ring->desc, 0, tx_ring->size);
-
-	tx_ring->next_to_use = 0;
-	tx_ring->next_to_clean = 0;
-	spin_lock_init(&tx_ring->tx_lock);
-
-	for (desNo = 0; desNo < tx_ring->count; desNo++) {
-		tx_desc = PCH_GBE_TX_DESC(*tx_ring, desNo);
-		tx_desc->gbec_status = DSC_INIT16;
-	}
-	pr_debug("tx_ring->desc = 0x%p  tx_ring->dma = 0x%08llx\n"
-		 "next_to_clean = 0x%08x  next_to_use = 0x%08x\n",
-		 tx_ring->desc, (unsigned long long)tx_ring->dma,
-		 tx_ring->next_to_clean, tx_ring->next_to_use);
-	return 0;
-}
-
-/**
- * pch_gbe_setup_rx_resources - Allocate Rx resources (Descriptors)
- * @adapter:  Board private structure
- * @rx_ring:  Rx descriptor ring (for a specific queue) to setup
- * Returns
- *	0:		Successfully
- *	Negative value:	Failed
- */
-int pch_gbe_setup_rx_resources(struct pch_gbe_adapter *adapter,
-				struct pch_gbe_rx_ring *rx_ring)
-{
-	struct pci_dev *pdev = adapter->pdev;
-	struct pch_gbe_rx_desc *rx_desc;
-	int size;
-	int desNo;
-
-	size = (int)sizeof(struct pch_gbe_buffer) * rx_ring->count;
-	rx_ring->buffer_info = vzalloc(size);
-	if (!rx_ring->buffer_info) {
-		pr_err("Unable to allocate memory for the receive descriptor ring\n");
-		return -ENOMEM;
-	}
-	rx_ring->size = rx_ring->count * (int)sizeof(struct pch_gbe_rx_desc);
-	rx_ring->desc =	dma_alloc_coherent(&pdev->dev, rx_ring->size,
-					   &rx_ring->dma, GFP_KERNEL);
-
-	if (!rx_ring->desc) {
-		pr_err("Unable to allocate memory for the receive descriptor ring\n");
-		vfree(rx_ring->buffer_info);
-		return -ENOMEM;
-	}
-	memset(rx_ring->desc, 0, rx_ring->size);
-	rx_ring->next_to_clean = 0;
-	rx_ring->next_to_use = 0;
-	for (desNo = 0; desNo < rx_ring->count; desNo++) {
-		rx_desc = PCH_GBE_RX_DESC(*rx_ring, desNo);
-		rx_desc->gbec_status = DSC_INIT16;
-	}
-	pr_debug("rx_ring->desc = 0x%p  rx_ring->dma = 0x%08llx "
-		 "next_to_clean = 0x%08x  next_to_use = 0x%08x\n",
-		 rx_ring->desc, (unsigned long long)rx_ring->dma,
-		 rx_ring->next_to_clean, rx_ring->next_to_use);
-	return 0;
-}
-
-/**
- * pch_gbe_free_tx_resources - Free Tx Resources
- * @adapter:  Board private structure
- * @tx_ring:  Tx descriptor ring for a specific queue
- */
-void pch_gbe_free_tx_resources(struct pch_gbe_adapter *adapter,
-				struct pch_gbe_tx_ring *tx_ring)
-{
-	struct pci_dev *pdev = adapter->pdev;
-
-	pch_gbe_clean_tx_ring(adapter, tx_ring);
-	vfree(tx_ring->buffer_info);
-	tx_ring->buffer_info = NULL;
-	pci_free_consistent(pdev, tx_ring->size, tx_ring->desc, tx_ring->dma);
-	tx_ring->desc = NULL;
-}
-
-/**
- * pch_gbe_free_rx_resources - Free Rx Resources
- * @adapter:  Board private structure
- * @rx_ring:  Ring to clean the resources from
- */
-void pch_gbe_free_rx_resources(struct pch_gbe_adapter *adapter,
-				struct pch_gbe_rx_ring *rx_ring)
-{
-	struct pci_dev *pdev = adapter->pdev;
-
-	pch_gbe_clean_rx_ring(adapter, rx_ring);
-	vfree(rx_ring->buffer_info);
-	rx_ring->buffer_info = NULL;
-	pci_free_consistent(pdev, rx_ring->size, rx_ring->desc, rx_ring->dma);
-	rx_ring->desc = NULL;
-}
-
-/**
- * pch_gbe_request_irq - Allocate an interrupt line
- * @adapter:  Board private structure
- * Returns
- *	0:		Successfully
- *	Negative value:	Failed
- */
-static int pch_gbe_request_irq(struct pch_gbe_adapter *adapter)
-{
-	struct net_device *netdev = adapter->netdev;
-	int err;
-	int flags;
-
-	flags = IRQF_SHARED;
-	adapter->have_msi = false;
-	err = pci_enable_msi(adapter->pdev);
-	pr_debug("call pci_enable_msi\n");
-	if (err) {
-		pr_debug("call pci_enable_msi - Error: %d\n", err);
-	} else {
-		flags = 0;
-		adapter->have_msi = true;
-	}
-	err = request_irq(adapter->pdev->irq, &pch_gbe_intr,
-			  flags, netdev->name, netdev);
-	if (err)
-		pr_err("Unable to allocate interrupt Error: %d\n", err);
-	pr_debug("adapter->have_msi : %d  flags : 0x%04x  return : 0x%04x\n",
-		 adapter->have_msi, flags, err);
-	return err;
-}
-
-
-static void pch_gbe_set_multi(struct net_device *netdev);
-/**
- * pch_gbe_up - Up GbE network device
- * @adapter:  Board private structure
- * Returns
- *	0:		Successfully
- *	Negative value:	Failed
- */
-int pch_gbe_up(struct pch_gbe_adapter *adapter)
-{
-	struct net_device *netdev = adapter->netdev;
-	struct pch_gbe_tx_ring *tx_ring = adapter->tx_ring;
-	struct pch_gbe_rx_ring *rx_ring = adapter->rx_ring;
-	int err;
-
-	/* hardware has been reset, we need to reload some things */
-	pch_gbe_set_multi(netdev);
-
-	pch_gbe_setup_tctl(adapter);
-	pch_gbe_configure_tx(adapter);
-	pch_gbe_setup_rctl(adapter);
-	pch_gbe_configure_rx(adapter);
-
-	err = pch_gbe_request_irq(adapter);
-	if (err) {
-		pr_err("Error: can't bring device up\n");
-		return err;
-	}
-	pch_gbe_alloc_tx_buffers(adapter, tx_ring);
-	pch_gbe_alloc_rx_buffers(adapter, rx_ring, rx_ring->count);
-	adapter->tx_queue_len = netdev->tx_queue_len;
-
-	mod_timer(&adapter->watchdog_timer, jiffies);
-
-	napi_enable(&adapter->napi);
-	pch_gbe_irq_enable(adapter);
-	netif_start_queue(adapter->netdev);
-
-	return 0;
-}
-
-/**
- * pch_gbe_down - Down GbE network device
- * @adapter:  Board private structure
- */
-void pch_gbe_down(struct pch_gbe_adapter *adapter)
-{
-	struct net_device *netdev = adapter->netdev;
-
-	/* signal that we're down so the interrupt handler does not
-	 * reschedule our watchdog timer */
-	napi_disable(&adapter->napi);
-	atomic_set(&adapter->irq_sem, 0);
-
-	pch_gbe_irq_disable(adapter);
-	pch_gbe_free_irq(adapter);
-
-	del_timer_sync(&adapter->watchdog_timer);
-
-	netdev->tx_queue_len = adapter->tx_queue_len;
-	netif_carrier_off(netdev);
-	netif_stop_queue(netdev);
-
-	pch_gbe_reset(adapter);
-	pch_gbe_clean_tx_ring(adapter, adapter->tx_ring);
-	pch_gbe_clean_rx_ring(adapter, adapter->rx_ring);
-}
-
-/**
- * pch_gbe_sw_init - Initialize general software structures (struct pch_gbe_adapter)
- * @adapter:  Board private structure to initialize
- * Returns
- *	0:		Successfully
- *	Negative value:	Failed
- */
-static int pch_gbe_sw_init(struct pch_gbe_adapter *adapter)
-{
-	struct pch_gbe_hw *hw = &adapter->hw;
-	struct net_device *netdev = adapter->netdev;
-
-	adapter->rx_buffer_len = PCH_GBE_FRAME_SIZE_2048;
-	hw->mac.max_frame_size = netdev->mtu + ETH_HLEN + ETH_FCS_LEN;
-	hw->mac.min_frame_size = ETH_ZLEN + ETH_FCS_LEN;
-
-	/* Initialize the hardware-specific values */
-	if (pch_gbe_hal_setup_init_funcs(hw)) {
-		pr_err("Hardware Initialization Failure\n");
-		return -EIO;
-	}
-	if (pch_gbe_alloc_queues(adapter)) {
-		pr_err("Unable to allocate memory for queues\n");
-		return -ENOMEM;
-	}
-	spin_lock_init(&adapter->hw.miim_lock);
-	spin_lock_init(&adapter->tx_queue_lock);
-	spin_lock_init(&adapter->stats_lock);
-	spin_lock_init(&adapter->ethtool_lock);
-	atomic_set(&adapter->irq_sem, 0);
-	pch_gbe_irq_disable(adapter);
-
-	pch_gbe_init_stats(adapter);
-
-	pr_debug("rx_buffer_len : %d  mac.min_frame_size : %d  mac.max_frame_size : %d\n",
-		 (u32) adapter->rx_buffer_len,
-		 hw->mac.min_frame_size, hw->mac.max_frame_size);
-	return 0;
-}
-
-/**
- * pch_gbe_open - Called when a network interface is made active
- * @netdev:	Network interface device structure
- * Returns
- *	0:		Successfully
- *	Negative value:	Failed
- */
-static int pch_gbe_open(struct net_device *netdev)
-{
-	struct pch_gbe_adapter *adapter = netdev_priv(netdev);
-	struct pch_gbe_hw *hw = &adapter->hw;
-	int err;
-
-	/* allocate transmit descriptors */
-	err = pch_gbe_setup_tx_resources(adapter, adapter->tx_ring);
-	if (err)
-		goto err_setup_tx;
-	/* allocate receive descriptors */
-	err = pch_gbe_setup_rx_resources(adapter, adapter->rx_ring);
-	if (err)
-		goto err_setup_rx;
-	pch_gbe_hal_power_up_phy(hw);
-	err = pch_gbe_up(adapter);
-	if (err)
-		goto err_up;
-	pr_debug("Success End\n");
-	return 0;
-
-err_up:
-	if (!adapter->wake_up_evt)
-		pch_gbe_hal_power_down_phy(hw);
-	pch_gbe_free_rx_resources(adapter, adapter->rx_ring);
-err_setup_rx:
-	pch_gbe_free_tx_resources(adapter, adapter->tx_ring);
-err_setup_tx:
-	pch_gbe_reset(adapter);
-	pr_err("Error End\n");
-	return err;
-}
-
-/**
- * pch_gbe_stop - Disables a network interface
- * @netdev:  Network interface device structure
- * Returns
- *	0: Successfully
- */
-static int pch_gbe_stop(struct net_device *netdev)
-{
-	struct pch_gbe_adapter *adapter = netdev_priv(netdev);
-	struct pch_gbe_hw *hw = &adapter->hw;
-
-	pch_gbe_down(adapter);
-	if (!adapter->wake_up_evt)
-		pch_gbe_hal_power_down_phy(hw);
-	pch_gbe_free_tx_resources(adapter, adapter->tx_ring);
-	pch_gbe_free_rx_resources(adapter, adapter->rx_ring);
-	return 0;
-}
-
-/**
- * pch_gbe_xmit_frame - Packet transmitting start
- * @skb:     Socket buffer structure
- * @netdev:  Network interface device structure
- * Returns
- *	- NETDEV_TX_OK:   Normal end
- *	- NETDEV_TX_BUSY: Error end
- */
-static int pch_gbe_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
-{
-	struct pch_gbe_adapter *adapter = netdev_priv(netdev);
-	struct pch_gbe_tx_ring *tx_ring = adapter->tx_ring;
-	unsigned long flags;
-
-	if (unlikely(skb->len > (adapter->hw.mac.max_frame_size - 4))) {
-		pr_err("Transfer length Error: skb len: %d > max: %d\n",
-		       skb->len, adapter->hw.mac.max_frame_size);
-		dev_kfree_skb_any(skb);
-		adapter->stats.tx_length_errors++;
-		return NETDEV_TX_OK;
-	}
-	if (!spin_trylock_irqsave(&tx_ring->tx_lock, flags)) {
-		/* Collision - tell upper layer to requeue */
-		return NETDEV_TX_LOCKED;
-	}
-	if (unlikely(!PCH_GBE_DESC_UNUSED(tx_ring))) {
-		netif_stop_queue(netdev);
-		spin_unlock_irqrestore(&tx_ring->tx_lock, flags);
-		pr_debug("Return : BUSY  next_to use : 0x%08x  next_to clean : 0x%08x\n",
-			 tx_ring->next_to_use, tx_ring->next_to_clean);
-		return NETDEV_TX_BUSY;
-	}
-	spin_unlock_irqrestore(&tx_ring->tx_lock, flags);
-
-	/* CRC,ITAG no support */
-	pch_gbe_tx_queue(adapter, tx_ring, skb);
-	return NETDEV_TX_OK;
-}
-
-/**
- * pch_gbe_get_stats - Get System Network Statistics
- * @netdev:  Network interface device structure
- * Returns:  The current stats
- */
-static struct net_device_stats *pch_gbe_get_stats(struct net_device *netdev)
-{
-	/* only return the current stats */
-	return &netdev->stats;
-}
-
-/**
- * pch_gbe_set_multi - Multicast and Promiscuous mode set
- * @netdev:   Network interface device structure
- */
-static void pch_gbe_set_multi(struct net_device *netdev)
-{
-	struct pch_gbe_adapter *adapter = netdev_priv(netdev);
-	struct pch_gbe_hw *hw = &adapter->hw;
-	struct netdev_hw_addr *ha;
-	u8 *mta_list;
-	u32 rctl;
-	int i;
-	int mc_count;
-
-	pr_debug("netdev->flags : 0x%08x\n", netdev->flags);
-
-	/* Check for Promiscuous and All Multicast modes */
-	rctl = ioread32(&hw->reg->RX_MODE);
-	mc_count = netdev_mc_count(netdev);
-	if ((netdev->flags & IFF_PROMISC)) {
-		rctl &= ~PCH_GBE_ADD_FIL_EN;
-		rctl &= ~PCH_GBE_MLT_FIL_EN;
-	} else if ((netdev->flags & IFF_ALLMULTI)) {
-		/* all the multicasting receive permissions */
-		rctl |= PCH_GBE_ADD_FIL_EN;
-		rctl &= ~PCH_GBE_MLT_FIL_EN;
-	} else {
-		if (mc_count >= PCH_GBE_MAR_ENTRIES) {
-			/* all the multicasting receive permissions */
-			rctl |= PCH_GBE_ADD_FIL_EN;
-			rctl &= ~PCH_GBE_MLT_FIL_EN;
-		} else {
-			rctl |= (PCH_GBE_ADD_FIL_EN | PCH_GBE_MLT_FIL_EN);
-		}
-	}
-	iowrite32(rctl, &hw->reg->RX_MODE);
-
-	if (mc_count >= PCH_GBE_MAR_ENTRIES)
-		return;
-	mta_list = kmalloc(mc_count * ETH_ALEN, GFP_ATOMIC);
-	if (!mta_list)
-		return;
-
-	/* The shared function expects a packed array of only addresses. */
-	i = 0;
-	netdev_for_each_mc_addr(ha, netdev) {
-		if (i == mc_count)
-			break;
-		memcpy(mta_list + (i++ * ETH_ALEN), &ha->addr, ETH_ALEN);
-	}
-	pch_gbe_mac_mc_addr_list_update(hw, mta_list, i, 1,
-					PCH_GBE_MAR_ENTRIES);
-	kfree(mta_list);
-
-	pr_debug("RX_MODE reg(check bit31,30 ADD,MLT) : 0x%08x  netdev->mc_count : 0x%08x\n",
-		 ioread32(&hw->reg->RX_MODE), mc_count);
-}
-
-/**
- * pch_gbe_set_mac - Change the Ethernet Address of the NIC
- * @netdev: Network interface device structure
- * @addr:   Pointer to an address structure
- * Returns
- *	0:		Successfully
- *	-EADDRNOTAVAIL:	Failed
- */
-static int pch_gbe_set_mac(struct net_device *netdev, void *addr)
-{
-	struct pch_gbe_adapter *adapter = netdev_priv(netdev);
-	struct sockaddr *skaddr = addr;
-	int ret_val;
-
-	if (!is_valid_ether_addr(skaddr->sa_data)) {
-		ret_val = -EADDRNOTAVAIL;
-	} else {
-		memcpy(netdev->dev_addr, skaddr->sa_data, netdev->addr_len);
-		memcpy(adapter->hw.mac.addr, skaddr->sa_data, netdev->addr_len);
-		pch_gbe_mac_mar_set(&adapter->hw, adapter->hw.mac.addr, 0);
-		ret_val = 0;
-	}
-	pr_debug("ret_val : 0x%08x\n", ret_val);
-	pr_debug("dev_addr : %pM\n", netdev->dev_addr);
-	pr_debug("mac_addr : %pM\n", adapter->hw.mac.addr);
-	pr_debug("MAC_ADR1AB reg : 0x%08x 0x%08x\n",
-		 ioread32(&adapter->hw.reg->mac_adr[0].high),
-		 ioread32(&adapter->hw.reg->mac_adr[0].low));
-	return ret_val;
-}
-
-/**
- * pch_gbe_change_mtu - Change the Maximum Transfer Unit
- * @netdev:   Network interface device structure
- * @new_mtu:  New value for maximum frame size
- * Returns
- *	0:		Successfully
- *	-EINVAL:	Failed
- */
-static int pch_gbe_change_mtu(struct net_device *netdev, int new_mtu)
-{
-	struct pch_gbe_adapter *adapter = netdev_priv(netdev);
-	int max_frame;
-
-	max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN;
-	if ((max_frame < ETH_ZLEN + ETH_FCS_LEN) ||
-		(max_frame > PCH_GBE_MAX_JUMBO_FRAME_SIZE)) {
-		pr_err("Invalid MTU setting\n");
-		return -EINVAL;
-	}
-	if (max_frame <= PCH_GBE_FRAME_SIZE_2048)
-		adapter->rx_buffer_len = PCH_GBE_FRAME_SIZE_2048;
-	else if (max_frame <= PCH_GBE_FRAME_SIZE_4096)
-		adapter->rx_buffer_len = PCH_GBE_FRAME_SIZE_4096;
-	else if (max_frame <= PCH_GBE_FRAME_SIZE_8192)
-		adapter->rx_buffer_len = PCH_GBE_FRAME_SIZE_8192;
-	else
-		adapter->rx_buffer_len = PCH_GBE_MAX_JUMBO_FRAME_SIZE;
-	netdev->mtu = new_mtu;
-	adapter->hw.mac.max_frame_size = max_frame;
-
-	if (netif_running(netdev))
-		pch_gbe_reinit_locked(adapter);
-	else
-		pch_gbe_reset(adapter);
-
-	pr_debug("max_frame : %d  rx_buffer_len : %d  mtu : %d  max_frame_size : %d\n",
-		 max_frame, (u32) adapter->rx_buffer_len, netdev->mtu,
-		 adapter->hw.mac.max_frame_size);
-	return 0;
-}
-
-/**
- * pch_gbe_set_features - Reset device after features changed
- * @netdev:   Network interface device structure
- * @features:  New features
- * Returns
- *	0:		HW state updated successfully
- */
-static int pch_gbe_set_features(struct net_device *netdev, u32 features)
-{
-	struct pch_gbe_adapter *adapter = netdev_priv(netdev);
-	u32 changed = features ^ netdev->features;
-
-	if (!(changed & NETIF_F_RXCSUM))
-		return 0;
-
-	if (netif_running(netdev))
-		pch_gbe_reinit_locked(adapter);
-	else
-		pch_gbe_reset(adapter);
-
-	return 0;
-}
-
-/**
- * pch_gbe_ioctl - Controls register through a MII interface
- * @netdev:   Network interface device structure
- * @ifr:      Pointer to ifr structure
- * @cmd:      Control command
- * Returns
- *	0:	Successfully
- *	Negative value:	Failed
- */
-static int pch_gbe_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
-{
-	struct pch_gbe_adapter *adapter = netdev_priv(netdev);
-
-	pr_debug("cmd : 0x%04x\n", cmd);
-
-	return generic_mii_ioctl(&adapter->mii, if_mii(ifr), cmd, NULL);
-}
-
-/**
- * pch_gbe_tx_timeout - Respond to a Tx Hang
- * @netdev:   Network interface device structure
- */
-static void pch_gbe_tx_timeout(struct net_device *netdev)
-{
-	struct pch_gbe_adapter *adapter = netdev_priv(netdev);
-
-	/* Do the reset outside of interrupt context */
-	adapter->stats.tx_timeout_count++;
-	schedule_work(&adapter->reset_task);
-}
-
-/**
- * pch_gbe_napi_poll - NAPI receive and transfer polling callback
- * @napi:    Pointer of polling device struct
- * @budget:  The maximum number of a packet
- * Returns
- *	false:  Exit the polling mode
- *	true:   Continue the polling mode
- */
-static int pch_gbe_napi_poll(struct napi_struct *napi, int budget)
-{
-	struct pch_gbe_adapter *adapter =
-	    container_of(napi, struct pch_gbe_adapter, napi);
-	struct net_device *netdev = adapter->netdev;
-	int work_done = 0;
-	bool poll_end_flag = false;
-	bool cleaned = false;
-
-	pr_debug("budget : %d\n", budget);
-
-	/* Keep link state information with original netdev */
-	if (!netif_carrier_ok(netdev)) {
-		poll_end_flag = true;
-	} else {
-		cleaned = pch_gbe_clean_tx(adapter, adapter->tx_ring);
-		pch_gbe_clean_rx(adapter, adapter->rx_ring, &work_done, budget);
-
-		if (cleaned)
-			work_done = budget;
-		/* If no Tx and not enough Rx work done,
-		 * exit the polling mode
-		 */
-		if ((work_done < budget) || !netif_running(netdev))
-			poll_end_flag = true;
-	}
-
-	if (poll_end_flag) {
-		napi_complete(napi);
-		pch_gbe_irq_enable(adapter);
-	}
-
-	pr_debug("poll_end_flag : %d  work_done : %d  budget : %d\n",
-		 poll_end_flag, work_done, budget);
-
-	return work_done;
-}
-
-#ifdef CONFIG_NET_POLL_CONTROLLER
-/**
- * pch_gbe_netpoll - Used by things like netconsole to send skbs
- * @netdev:  Network interface device structure
- */
-static void pch_gbe_netpoll(struct net_device *netdev)
-{
-	struct pch_gbe_adapter *adapter = netdev_priv(netdev);
-
-	disable_irq(adapter->pdev->irq);
-	pch_gbe_intr(adapter->pdev->irq, netdev);
-	enable_irq(adapter->pdev->irq);
-}
-#endif
-
-static const struct net_device_ops pch_gbe_netdev_ops = {
-	.ndo_open = pch_gbe_open,
-	.ndo_stop = pch_gbe_stop,
-	.ndo_start_xmit = pch_gbe_xmit_frame,
-	.ndo_get_stats = pch_gbe_get_stats,
-	.ndo_set_mac_address = pch_gbe_set_mac,
-	.ndo_tx_timeout = pch_gbe_tx_timeout,
-	.ndo_change_mtu = pch_gbe_change_mtu,
-	.ndo_set_features = pch_gbe_set_features,
-	.ndo_do_ioctl = pch_gbe_ioctl,
-	.ndo_set_multicast_list = &pch_gbe_set_multi,
-#ifdef CONFIG_NET_POLL_CONTROLLER
-	.ndo_poll_controller = pch_gbe_netpoll,
-#endif
-};
-
-static pci_ers_result_t pch_gbe_io_error_detected(struct pci_dev *pdev,
-						pci_channel_state_t state)
-{
-	struct net_device *netdev = pci_get_drvdata(pdev);
-	struct pch_gbe_adapter *adapter = netdev_priv(netdev);
-
-	netif_device_detach(netdev);
-	if (netif_running(netdev))
-		pch_gbe_down(adapter);
-	pci_disable_device(pdev);
-	/* Request a slot slot reset. */
-	return PCI_ERS_RESULT_NEED_RESET;
-}
-
-static pci_ers_result_t pch_gbe_io_slot_reset(struct pci_dev *pdev)
-{
-	struct net_device *netdev = pci_get_drvdata(pdev);
-	struct pch_gbe_adapter *adapter = netdev_priv(netdev);
-	struct pch_gbe_hw *hw = &adapter->hw;
-
-	if (pci_enable_device(pdev)) {
-		pr_err("Cannot re-enable PCI device after reset\n");
-		return PCI_ERS_RESULT_DISCONNECT;
-	}
-	pci_set_master(pdev);
-	pci_enable_wake(pdev, PCI_D0, 0);
-	pch_gbe_hal_power_up_phy(hw);
-	pch_gbe_reset(adapter);
-	/* Clear wake up status */
-	pch_gbe_mac_set_wol_event(hw, 0);
-
-	return PCI_ERS_RESULT_RECOVERED;
-}
-
-static void pch_gbe_io_resume(struct pci_dev *pdev)
-{
-	struct net_device *netdev = pci_get_drvdata(pdev);
-	struct pch_gbe_adapter *adapter = netdev_priv(netdev);
-
-	if (netif_running(netdev)) {
-		if (pch_gbe_up(adapter)) {
-			pr_debug("can't bring device back up after reset\n");
-			return;
-		}
-	}
-	netif_device_attach(netdev);
-}
-
-static int __pch_gbe_suspend(struct pci_dev *pdev)
-{
-	struct net_device *netdev = pci_get_drvdata(pdev);
-	struct pch_gbe_adapter *adapter = netdev_priv(netdev);
-	struct pch_gbe_hw *hw = &adapter->hw;
-	u32 wufc = adapter->wake_up_evt;
-	int retval = 0;
-
-	netif_device_detach(netdev);
-	if (netif_running(netdev))
-		pch_gbe_down(adapter);
-	if (wufc) {
-		pch_gbe_set_multi(netdev);
-		pch_gbe_setup_rctl(adapter);
-		pch_gbe_configure_rx(adapter);
-		pch_gbe_set_rgmii_ctrl(adapter, hw->mac.link_speed,
-					hw->mac.link_duplex);
-		pch_gbe_set_mode(adapter, hw->mac.link_speed,
-					hw->mac.link_duplex);
-		pch_gbe_mac_set_wol_event(hw, wufc);
-		pci_disable_device(pdev);
-	} else {
-		pch_gbe_hal_power_down_phy(hw);
-		pch_gbe_mac_set_wol_event(hw, wufc);
-		pci_disable_device(pdev);
-	}
-	return retval;
-}
-
-#ifdef CONFIG_PM
-static int pch_gbe_suspend(struct device *device)
-{
-	struct pci_dev *pdev = to_pci_dev(device);
-
-	return __pch_gbe_suspend(pdev);
-}
-
-static int pch_gbe_resume(struct device *device)
-{
-	struct pci_dev *pdev = to_pci_dev(device);
-	struct net_device *netdev = pci_get_drvdata(pdev);
-	struct pch_gbe_adapter *adapter = netdev_priv(netdev);
-	struct pch_gbe_hw *hw = &adapter->hw;
-	u32 err;
-
-	err = pci_enable_device(pdev);
-	if (err) {
-		pr_err("Cannot enable PCI device from suspend\n");
-		return err;
-	}
-	pci_set_master(pdev);
-	pch_gbe_hal_power_up_phy(hw);
-	pch_gbe_reset(adapter);
-	/* Clear wake on lan control and status */
-	pch_gbe_mac_set_wol_event(hw, 0);
-
-	if (netif_running(netdev))
-		pch_gbe_up(adapter);
-	netif_device_attach(netdev);
-
-	return 0;
-}
-#endif /* CONFIG_PM */
-
-static void pch_gbe_shutdown(struct pci_dev *pdev)
-{
-	__pch_gbe_suspend(pdev);
-	if (system_state == SYSTEM_POWER_OFF) {
-		pci_wake_from_d3(pdev, true);
-		pci_set_power_state(pdev, PCI_D3hot);
-	}
-}
-
-static void pch_gbe_remove(struct pci_dev *pdev)
-{
-	struct net_device *netdev = pci_get_drvdata(pdev);
-	struct pch_gbe_adapter *adapter = netdev_priv(netdev);
-
-	cancel_work_sync(&adapter->reset_task);
-	unregister_netdev(netdev);
-
-	pch_gbe_hal_phy_hw_reset(&adapter->hw);
-
-	kfree(adapter->tx_ring);
-	kfree(adapter->rx_ring);
-
-	iounmap(adapter->hw.reg);
-	pci_release_regions(pdev);
-	free_netdev(netdev);
-	pci_disable_device(pdev);
-}
-
-static int pch_gbe_probe(struct pci_dev *pdev,
-			  const struct pci_device_id *pci_id)
-{
-	struct net_device *netdev;
-	struct pch_gbe_adapter *adapter;
-	int ret;
-
-	ret = pci_enable_device(pdev);
-	if (ret)
-		return ret;
-
-	if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64))
-		|| pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) {
-		ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
-		if (ret) {
-			ret = pci_set_consistent_dma_mask(pdev,
-							  DMA_BIT_MASK(32));
-			if (ret) {
-				dev_err(&pdev->dev, "ERR: No usable DMA "
-					"configuration, aborting\n");
-				goto err_disable_device;
-			}
-		}
-	}
-
-	ret = pci_request_regions(pdev, KBUILD_MODNAME);
-	if (ret) {
-		dev_err(&pdev->dev,
-			"ERR: Can't reserve PCI I/O and memory resources\n");
-		goto err_disable_device;
-	}
-	pci_set_master(pdev);
-
-	netdev = alloc_etherdev((int)sizeof(struct pch_gbe_adapter));
-	if (!netdev) {
-		ret = -ENOMEM;
-		dev_err(&pdev->dev,
-			"ERR: Can't allocate and set up an Ethernet device\n");
-		goto err_release_pci;
-	}
-	SET_NETDEV_DEV(netdev, &pdev->dev);
-
-	pci_set_drvdata(pdev, netdev);
-	adapter = netdev_priv(netdev);
-	adapter->netdev = netdev;
-	adapter->pdev = pdev;
-	adapter->hw.back = adapter;
-	adapter->hw.reg = pci_iomap(pdev, PCH_GBE_PCI_BAR, 0);
-	if (!adapter->hw.reg) {
-		ret = -EIO;
-		dev_err(&pdev->dev, "Can't ioremap\n");
-		goto err_free_netdev;
-	}
-
-	netdev->netdev_ops = &pch_gbe_netdev_ops;
-	netdev->watchdog_timeo = PCH_GBE_WATCHDOG_PERIOD;
-	netif_napi_add(netdev, &adapter->napi,
-		       pch_gbe_napi_poll, PCH_GBE_RX_WEIGHT);
-	netdev->hw_features = NETIF_F_RXCSUM |
-		NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
-	netdev->features = netdev->hw_features;
-	pch_gbe_set_ethtool_ops(netdev);
-
-	pch_gbe_mac_load_mac_addr(&adapter->hw);
-	pch_gbe_mac_reset_hw(&adapter->hw);
-
-	/* setup the private structure */
-	ret = pch_gbe_sw_init(adapter);
-	if (ret)
-		goto err_iounmap;
-
-	/* Initialize PHY */
-	ret = pch_gbe_init_phy(adapter);
-	if (ret) {
-		dev_err(&pdev->dev, "PHY initialize error\n");
-		goto err_free_adapter;
-	}
-	pch_gbe_hal_get_bus_info(&adapter->hw);
-
-	/* Read the MAC address. and store to the private data */
-	ret = pch_gbe_hal_read_mac_addr(&adapter->hw);
-	if (ret) {
-		dev_err(&pdev->dev, "MAC address Read Error\n");
-		goto err_free_adapter;
-	}
-
-	memcpy(netdev->dev_addr, adapter->hw.mac.addr, netdev->addr_len);
-	if (!is_valid_ether_addr(netdev->dev_addr)) {
-		dev_err(&pdev->dev, "Invalid MAC Address\n");
-		ret = -EIO;
-		goto err_free_adapter;
-	}
-	setup_timer(&adapter->watchdog_timer, pch_gbe_watchdog,
-		    (unsigned long)adapter);
-
-	INIT_WORK(&adapter->reset_task, pch_gbe_reset_task);
-
-	pch_gbe_check_options(adapter);
-
-	/* initialize the wol settings based on the eeprom settings */
-	adapter->wake_up_evt = PCH_GBE_WL_INIT_SETTING;
-	dev_info(&pdev->dev, "MAC address : %pM\n", netdev->dev_addr);
-
-	/* reset the hardware with the new settings */
-	pch_gbe_reset(adapter);
-
-	ret = register_netdev(netdev);
-	if (ret)
-		goto err_free_adapter;
-	/* tell the stack to leave us alone until pch_gbe_open() is called */
-	netif_carrier_off(netdev);
-	netif_stop_queue(netdev);
-
-	dev_dbg(&pdev->dev, "OKIsemi(R) PCH Network Connection\n");
-
-	device_set_wakeup_enable(&pdev->dev, 1);
-	return 0;
-
-err_free_adapter:
-	pch_gbe_hal_phy_hw_reset(&adapter->hw);
-	kfree(adapter->tx_ring);
-	kfree(adapter->rx_ring);
-err_iounmap:
-	iounmap(adapter->hw.reg);
-err_free_netdev:
-	free_netdev(netdev);
-err_release_pci:
-	pci_release_regions(pdev);
-err_disable_device:
-	pci_disable_device(pdev);
-	return ret;
-}
-
-static DEFINE_PCI_DEVICE_TABLE(pch_gbe_pcidev_id) = {
-	{.vendor = PCI_VENDOR_ID_INTEL,
-	 .device = PCI_DEVICE_ID_INTEL_IOH1_GBE,
-	 .subvendor = PCI_ANY_ID,
-	 .subdevice = PCI_ANY_ID,
-	 .class = (PCI_CLASS_NETWORK_ETHERNET << 8),
-	 .class_mask = (0xFFFF00)
-	 },
-	{.vendor = PCI_VENDOR_ID_ROHM,
-	 .device = PCI_DEVICE_ID_ROHM_ML7223_GBE,
-	 .subvendor = PCI_ANY_ID,
-	 .subdevice = PCI_ANY_ID,
-	 .class = (PCI_CLASS_NETWORK_ETHERNET << 8),
-	 .class_mask = (0xFFFF00)
-	 },
-	/* required last entry */
-	{0}
-};
-
-#ifdef CONFIG_PM
-static const struct dev_pm_ops pch_gbe_pm_ops = {
-	.suspend = pch_gbe_suspend,
-	.resume = pch_gbe_resume,
-	.freeze = pch_gbe_suspend,
-	.thaw = pch_gbe_resume,
-	.poweroff = pch_gbe_suspend,
-	.restore = pch_gbe_resume,
-};
-#endif
-
-static struct pci_error_handlers pch_gbe_err_handler = {
-	.error_detected = pch_gbe_io_error_detected,
-	.slot_reset = pch_gbe_io_slot_reset,
-	.resume = pch_gbe_io_resume
-};
-
-static struct pci_driver pch_gbe_driver = {
-	.name = KBUILD_MODNAME,
-	.id_table = pch_gbe_pcidev_id,
-	.probe = pch_gbe_probe,
-	.remove = pch_gbe_remove,
-#ifdef CONFIG_PM
-	.driver.pm = &pch_gbe_pm_ops,
-#endif
-	.shutdown = pch_gbe_shutdown,
-	.err_handler = &pch_gbe_err_handler
-};
-
-
-static int __init pch_gbe_init_module(void)
-{
-	int ret;
-
-	ret = pci_register_driver(&pch_gbe_driver);
-	if (copybreak != PCH_GBE_COPYBREAK_DEFAULT) {
-		if (copybreak == 0) {
-			pr_info("copybreak disabled\n");
-		} else {
-			pr_info("copybreak enabled for packets <= %u bytes\n",
-				copybreak);
-		}
-	}
-	return ret;
-}
-
-static void __exit pch_gbe_exit_module(void)
-{
-	pci_unregister_driver(&pch_gbe_driver);
-}
-
-module_init(pch_gbe_init_module);
-module_exit(pch_gbe_exit_module);
-
-MODULE_DESCRIPTION("EG20T PCH Gigabit ethernet Driver");
-MODULE_AUTHOR("OKI SEMICONDUCTOR, <toshiharu-linux@dsn.okisemi.com>");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(DRV_VERSION);
-MODULE_DEVICE_TABLE(pci, pch_gbe_pcidev_id);
-
-module_param(copybreak, uint, 0644);
-MODULE_PARM_DESC(copybreak,
-	"Maximum size of packet that is copied to a new buffer on receive");
-
-/* pch_gbe_main.c */