Adding upstream version 5.10.209.upstream/5.10.209upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

3 files changed, 6538 insertions, 0 deletions

diff --git a/drivers/net/ethernet/nvidia/Kconfig b/drivers/net/ethernet/nvidia/Kconfig
new file mode 100644
index 000000000..c653786b1
--- /dev/null
+++ b/drivers/net/ethernet/nvidia/Kconfig
@@ -0,0 +1,29 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# NVIDIA network device configuration
+#
+
+config NET_VENDOR_NVIDIA
+	bool "NVIDIA devices"
+	default y
+	depends on PCI
+	help
+	  If you have a network (Ethernet) card belonging to this class, say Y.
+
+	  Note that the answer to this question doesn't directly affect the
+	  kernel: saying N will just cause the configurator to skip all
+	  the questions about NVIDIA cards. If you say Y, you will be asked for
+	  your specific card in the following questions.
+
+if NET_VENDOR_NVIDIA
+
+config FORCEDETH
+	tristate "nForce Ethernet support"
+	depends on PCI
+	help
+	  If you have a network (Ethernet) controller of this type, say Y here.
+
+	  To compile this driver as a module, choose M here. The module
+	  will be called forcedeth.
+
+endif # NET_VENDOR_NVIDIA
diff --git a/drivers/net/ethernet/nvidia/Makefile b/drivers/net/ethernet/nvidia/Makefile
new file mode 100644
index 000000000..89356992c
--- /dev/null
+++ b/drivers/net/ethernet/nvidia/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Makefile for the NVIDIA network device drivers.
+#
+
+obj-$(CONFIG_FORCEDETH) += forcedeth.o
diff --git a/drivers/net/ethernet/nvidia/forcedeth.c b/drivers/net/ethernet/nvidia/forcedeth.c
new file mode 100644
index 000000000..e14dd1051
--- /dev/null
+++ b/drivers/net/ethernet/nvidia/forcedeth.c
@@ -0,0 +1,6503 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * forcedeth: Ethernet driver for NVIDIA nForce media access controllers.
+ *
+ * Note: This driver is a cleanroom reimplementation based on reverse
+ *      engineered documentation written by Carl-Daniel Hailfinger
+ *      and Andrew de Quincey.
+ *
+ * NVIDIA, nForce and other NVIDIA marks are trademarks or registered
+ * trademarks of NVIDIA Corporation in the United States and other
+ * countries.
+ *
+ * Copyright (C) 2003,4,5 Manfred Spraul
+ * Copyright (C) 2004 Andrew de Quincey (wol support)
+ * Copyright (C) 2004 Carl-Daniel Hailfinger (invalid MAC handling, insane
+ *		IRQ rate fixes, bigendian fixes, cleanups, verification)
+ * Copyright (c) 2004,2005,2006,2007,2008,2009 NVIDIA Corporation
+ *
+ * Known bugs:
+ * We suspect that on some hardware no TX done interrupts are generated.
+ * This means recovery from netif_stop_queue only happens if the hw timer
+ * interrupt fires (100 times/second, configurable with NVREG_POLL_DEFAULT)
+ * and the timer is active in the IRQMask, or if a rx packet arrives by chance.
+ * If your hardware reliably generates tx done interrupts, then you can remove
+ * DEV_NEED_TIMERIRQ from the driver_data flags.
+ * DEV_NEED_TIMERIRQ will not harm you on sane hardware, only generating a few
+ * superfluous timer interrupts from the nic.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#define FORCEDETH_VERSION		"0.64"
+#define DRV_NAME			"forcedeth"
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/interrupt.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
+#include <linux/ethtool.h>
+#include <linux/timer.h>
+#include <linux/skbuff.h>
+#include <linux/mii.h>
+#include <linux/random.h>
+#include <linux/if_vlan.h>
+#include <linux/dma-mapping.h>
+#include <linux/slab.h>
+#include <linux/uaccess.h>
+#include <linux/prefetch.h>
+#include <linux/u64_stats_sync.h>
+#include <linux/io.h>
+
+#include <asm/irq.h>
+
+#define TX_WORK_PER_LOOP  64
+#define RX_WORK_PER_LOOP  64
+
+/*
+ * Hardware access:
+ */
+
+#define DEV_NEED_TIMERIRQ          0x0000001  /* set the timer irq flag in the irq mask */
+#define DEV_NEED_LINKTIMER         0x0000002  /* poll link settings. Relies on the timer irq */
+#define DEV_HAS_LARGEDESC          0x0000004  /* device supports jumbo frames and needs packet format 2 */
+#define DEV_HAS_HIGH_DMA           0x0000008  /* device supports 64bit dma */
+#define DEV_HAS_CHECKSUM           0x0000010  /* device supports tx and rx checksum offloads */
+#define DEV_HAS_VLAN               0x0000020  /* device supports vlan tagging and striping */
+#define DEV_HAS_MSI                0x0000040  /* device supports MSI */
+#define DEV_HAS_MSI_X              0x0000080  /* device supports MSI-X */
+#define DEV_HAS_POWER_CNTRL        0x0000100  /* device supports power savings */
+#define DEV_HAS_STATISTICS_V1      0x0000200  /* device supports hw statistics version 1 */
+#define DEV_HAS_STATISTICS_V2      0x0000400  /* device supports hw statistics version 2 */
+#define DEV_HAS_STATISTICS_V3      0x0000800  /* device supports hw statistics version 3 */
+#define DEV_HAS_STATISTICS_V12     0x0000600  /* device supports hw statistics version 1 and 2 */
+#define DEV_HAS_STATISTICS_V123    0x0000e00  /* device supports hw statistics version 1, 2, and 3 */
+#define DEV_HAS_TEST_EXTENDED      0x0001000  /* device supports extended diagnostic test */
+#define DEV_HAS_MGMT_UNIT          0x0002000  /* device supports management unit */
+#define DEV_HAS_CORRECT_MACADDR    0x0004000  /* device supports correct mac address order */
+#define DEV_HAS_COLLISION_FIX      0x0008000  /* device supports tx collision fix */
+#define DEV_HAS_PAUSEFRAME_TX_V1   0x0010000  /* device supports tx pause frames version 1 */
+#define DEV_HAS_PAUSEFRAME_TX_V2   0x0020000  /* device supports tx pause frames version 2 */
+#define DEV_HAS_PAUSEFRAME_TX_V3   0x0040000  /* device supports tx pause frames version 3 */
+#define DEV_NEED_TX_LIMIT          0x0080000  /* device needs to limit tx */
+#define DEV_NEED_TX_LIMIT2         0x0180000  /* device needs to limit tx, expect for some revs */
+#define DEV_HAS_GEAR_MODE          0x0200000  /* device supports gear mode */
+#define DEV_NEED_PHY_INIT_FIX      0x0400000  /* device needs specific phy workaround */
+#define DEV_NEED_LOW_POWER_FIX     0x0800000  /* device needs special power up workaround */
+#define DEV_NEED_MSI_FIX           0x1000000  /* device needs msi workaround */
+
+enum {
+	NvRegIrqStatus = 0x000,
+#define NVREG_IRQSTAT_MIIEVENT	0x040
+#define NVREG_IRQSTAT_MASK		0x83ff
+	NvRegIrqMask = 0x004,
+#define NVREG_IRQ_RX_ERROR		0x0001
+#define NVREG_IRQ_RX			0x0002
+#define NVREG_IRQ_RX_NOBUF		0x0004
+#define NVREG_IRQ_TX_ERR		0x0008
+#define NVREG_IRQ_TX_OK			0x0010
+#define NVREG_IRQ_TIMER			0x0020
+#define NVREG_IRQ_LINK			0x0040
+#define NVREG_IRQ_RX_FORCED		0x0080
+#define NVREG_IRQ_TX_FORCED		0x0100
+#define NVREG_IRQ_RECOVER_ERROR		0x8200
+#define NVREG_IRQMASK_THROUGHPUT	0x00df
+#define NVREG_IRQMASK_CPU		0x0060
+#define NVREG_IRQ_TX_ALL		(NVREG_IRQ_TX_ERR|NVREG_IRQ_TX_OK|NVREG_IRQ_TX_FORCED)
+#define NVREG_IRQ_RX_ALL		(NVREG_IRQ_RX_ERROR|NVREG_IRQ_RX|NVREG_IRQ_RX_NOBUF|NVREG_IRQ_RX_FORCED)
+#define NVREG_IRQ_OTHER			(NVREG_IRQ_TIMER|NVREG_IRQ_LINK|NVREG_IRQ_RECOVER_ERROR)
+
+	NvRegUnknownSetupReg6 = 0x008,
+#define NVREG_UNKSETUP6_VAL		3
+
+/*
+ * NVREG_POLL_DEFAULT is the interval length of the timer source on the nic
+ * NVREG_POLL_DEFAULT=97 would result in an interval length of 1 ms
+ */
+	NvRegPollingInterval = 0x00c,
+#define NVREG_POLL_DEFAULT_THROUGHPUT	65535 /* backup tx cleanup if loop max reached */
+#define NVREG_POLL_DEFAULT_CPU	13
+	NvRegMSIMap0 = 0x020,
+	NvRegMSIMap1 = 0x024,
+	NvRegMSIIrqMask = 0x030,
+#define NVREG_MSI_VECTOR_0_ENABLED 0x01
+	NvRegMisc1 = 0x080,
+#define NVREG_MISC1_PAUSE_TX	0x01
+#define NVREG_MISC1_HD		0x02
+#define NVREG_MISC1_FORCE	0x3b0f3c
+
+	NvRegMacReset = 0x34,
+#define NVREG_MAC_RESET_ASSERT	0x0F3
+	NvRegTransmitterControl = 0x084,
+#define NVREG_XMITCTL_START	0x01
+#define NVREG_XMITCTL_MGMT_ST	0x40000000
+#define NVREG_XMITCTL_SYNC_MASK		0x000f0000
+#define NVREG_XMITCTL_SYNC_NOT_READY	0x0
+#define NVREG_XMITCTL_SYNC_PHY_INIT	0x00040000
+#define NVREG_XMITCTL_MGMT_SEMA_MASK	0x00000f00
+#define NVREG_XMITCTL_MGMT_SEMA_FREE	0x0
+#define NVREG_XMITCTL_HOST_SEMA_MASK	0x0000f000
+#define NVREG_XMITCTL_HOST_SEMA_ACQ	0x0000f000
+#define NVREG_XMITCTL_HOST_LOADED	0x00004000
+#define NVREG_XMITCTL_TX_PATH_EN	0x01000000
+#define NVREG_XMITCTL_DATA_START	0x00100000
+#define NVREG_XMITCTL_DATA_READY	0x00010000
+#define NVREG_XMITCTL_DATA_ERROR	0x00020000
+	NvRegTransmitterStatus = 0x088,
+#define NVREG_XMITSTAT_BUSY	0x01
+
+	NvRegPacketFilterFlags = 0x8c,
+#define NVREG_PFF_PAUSE_RX	0x08
+#define NVREG_PFF_ALWAYS	0x7F0000
+#define NVREG_PFF_PROMISC	0x80
+#define NVREG_PFF_MYADDR	0x20
+#define NVREG_PFF_LOOPBACK	0x10
+
+	NvRegOffloadConfig = 0x90,
+#define NVREG_OFFLOAD_HOMEPHY	0x601
+#define NVREG_OFFLOAD_NORMAL	RX_NIC_BUFSIZE
+	NvRegReceiverControl = 0x094,
+#define NVREG_RCVCTL_START	0x01
+#define NVREG_RCVCTL_RX_PATH_EN	0x01000000
+	NvRegReceiverStatus = 0x98,
+#define NVREG_RCVSTAT_BUSY	0x01
+
+	NvRegSlotTime = 0x9c,
+#define NVREG_SLOTTIME_LEGBF_ENABLED	0x80000000
+#define NVREG_SLOTTIME_10_100_FULL	0x00007f00
+#define NVREG_SLOTTIME_1000_FULL	0x0003ff00
+#define NVREG_SLOTTIME_HALF		0x0000ff00
+#define NVREG_SLOTTIME_DEFAULT		0x00007f00
+#define NVREG_SLOTTIME_MASK		0x000000ff
+
+	NvRegTxDeferral = 0xA0,
+#define NVREG_TX_DEFERRAL_DEFAULT		0x15050f
+#define NVREG_TX_DEFERRAL_RGMII_10_100		0x16070f
+#define NVREG_TX_DEFERRAL_RGMII_1000		0x14050f
+#define NVREG_TX_DEFERRAL_RGMII_STRETCH_10	0x16190f
+#define NVREG_TX_DEFERRAL_RGMII_STRETCH_100	0x16300f
+#define NVREG_TX_DEFERRAL_MII_STRETCH		0x152000
+	NvRegRxDeferral = 0xA4,
+#define NVREG_RX_DEFERRAL_DEFAULT	0x16
+	NvRegMacAddrA = 0xA8,
+	NvRegMacAddrB = 0xAC,
+	NvRegMulticastAddrA = 0xB0,
+#define NVREG_MCASTADDRA_FORCE	0x01
+	NvRegMulticastAddrB = 0xB4,
+	NvRegMulticastMaskA = 0xB8,
+#define NVREG_MCASTMASKA_NONE		0xffffffff
+	NvRegMulticastMaskB = 0xBC,
+#define NVREG_MCASTMASKB_NONE		0xffff
+
+	NvRegPhyInterface = 0xC0,
+#define PHY_RGMII		0x10000000
+	NvRegBackOffControl = 0xC4,
+#define NVREG_BKOFFCTRL_DEFAULT			0x70000000
+#define NVREG_BKOFFCTRL_SEED_MASK		0x000003ff
+#define NVREG_BKOFFCTRL_SELECT			24
+#define NVREG_BKOFFCTRL_GEAR			12
+
+	NvRegTxRingPhysAddr = 0x100,
+	NvRegRxRingPhysAddr = 0x104,
+	NvRegRingSizes = 0x108,
+#define NVREG_RINGSZ_TXSHIFT 0
+#define NVREG_RINGSZ_RXSHIFT 16
+	NvRegTransmitPoll = 0x10c,
+#define NVREG_TRANSMITPOLL_MAC_ADDR_REV	0x00008000
+	NvRegLinkSpeed = 0x110,
+#define NVREG_LINKSPEED_FORCE 0x10000
+#define NVREG_LINKSPEED_10	1000
+#define NVREG_LINKSPEED_100	100
+#define NVREG_LINKSPEED_1000	50
+#define NVREG_LINKSPEED_MASK	(0xFFF)
+	NvRegUnknownSetupReg5 = 0x130,
+#define NVREG_UNKSETUP5_BIT31	(1<<31)
+	NvRegTxWatermark = 0x13c,
+#define NVREG_TX_WM_DESC1_DEFAULT	0x0200010
+#define NVREG_TX_WM_DESC2_3_DEFAULT	0x1e08000
+#define NVREG_TX_WM_DESC2_3_1000	0xfe08000
+	NvRegTxRxControl = 0x144,
+#define NVREG_TXRXCTL_KICK	0x0001
+#define NVREG_TXRXCTL_BIT1	0x0002
+#define NVREG_TXRXCTL_BIT2	0x0004
+#define NVREG_TXRXCTL_IDLE	0x0008
+#define NVREG_TXRXCTL_RESET	0x0010
+#define NVREG_TXRXCTL_RXCHECK	0x0400
+#define NVREG_TXRXCTL_DESC_1	0
+#define NVREG_TXRXCTL_DESC_2	0x002100
+#define NVREG_TXRXCTL_DESC_3	0xc02200
+#define NVREG_TXRXCTL_VLANSTRIP 0x00040
+#define NVREG_TXRXCTL_VLANINS	0x00080
+	NvRegTxRingPhysAddrHigh = 0x148,
+	NvRegRxRingPhysAddrHigh = 0x14C,
+	NvRegTxPauseFrame = 0x170,
+#define NVREG_TX_PAUSEFRAME_DISABLE	0x0fff0080
+#define NVREG_TX_PAUSEFRAME_ENABLE_V1	0x01800010
+#define NVREG_TX_PAUSEFRAME_ENABLE_V2	0x056003f0
+#define NVREG_TX_PAUSEFRAME_ENABLE_V3	0x09f00880
+	NvRegTxPauseFrameLimit = 0x174,
+#define NVREG_TX_PAUSEFRAMELIMIT_ENABLE	0x00010000
+	NvRegMIIStatus = 0x180,
+#define NVREG_MIISTAT_ERROR		0x0001
+#define NVREG_MIISTAT_LINKCHANGE	0x0008
+#define NVREG_MIISTAT_MASK_RW		0x0007
+#define NVREG_MIISTAT_MASK_ALL		0x000f
+	NvRegMIIMask = 0x184,
+#define NVREG_MII_LINKCHANGE		0x0008
+
+	NvRegAdapterControl = 0x188,
+#define NVREG_ADAPTCTL_START	0x02
+#define NVREG_ADAPTCTL_LINKUP	0x04
+#define NVREG_ADAPTCTL_PHYVALID	0x40000
+#define NVREG_ADAPTCTL_RUNNING	0x100000
+#define NVREG_ADAPTCTL_PHYSHIFT	24
+	NvRegMIISpeed = 0x18c,
+#define NVREG_MIISPEED_BIT8	(1<<8)
+#define NVREG_MIIDELAY	5
+	NvRegMIIControl = 0x190,
+#define NVREG_MIICTL_INUSE	0x08000
+#define NVREG_MIICTL_WRITE	0x00400
+#define NVREG_MIICTL_ADDRSHIFT	5
+	NvRegMIIData = 0x194,
+	NvRegTxUnicast = 0x1a0,
+	NvRegTxMulticast = 0x1a4,
+	NvRegTxBroadcast = 0x1a8,
+	NvRegWakeUpFlags = 0x200,
+#define NVREG_WAKEUPFLAGS_VAL		0x7770
+#define NVREG_WAKEUPFLAGS_BUSYSHIFT	24
+#define NVREG_WAKEUPFLAGS_ENABLESHIFT	16
+#define NVREG_WAKEUPFLAGS_D3SHIFT	12
+#define NVREG_WAKEUPFLAGS_D2SHIFT	8
+#define NVREG_WAKEUPFLAGS_D1SHIFT	4
+#define NVREG_WAKEUPFLAGS_D0SHIFT	0
+#define NVREG_WAKEUPFLAGS_ACCEPT_MAGPAT		0x01
+#define NVREG_WAKEUPFLAGS_ACCEPT_WAKEUPPAT	0x02
+#define NVREG_WAKEUPFLAGS_ACCEPT_LINKCHANGE	0x04
+#define NVREG_WAKEUPFLAGS_ENABLE	0x1111
+
+	NvRegMgmtUnitGetVersion = 0x204,
+#define NVREG_MGMTUNITGETVERSION	0x01
+	NvRegMgmtUnitVersion = 0x208,
+#define NVREG_MGMTUNITVERSION		0x08
+	NvRegPowerCap = 0x268,
+#define NVREG_POWERCAP_D3SUPP	(1<<30)
+#define NVREG_POWERCAP_D2SUPP	(1<<26)
+#define NVREG_POWERCAP_D1SUPP	(1<<25)
+	NvRegPowerState = 0x26c,
+#define NVREG_POWERSTATE_POWEREDUP	0x8000
+#define NVREG_POWERSTATE_VALID		0x0100
+#define NVREG_POWERSTATE_MASK		0x0003
+#define NVREG_POWERSTATE_D0		0x0000
+#define NVREG_POWERSTATE_D1		0x0001
+#define NVREG_POWERSTATE_D2		0x0002
+#define NVREG_POWERSTATE_D3		0x0003
+	NvRegMgmtUnitControl = 0x278,
+#define NVREG_MGMTUNITCONTROL_INUSE	0x20000
+	NvRegTxCnt = 0x280,
+	NvRegTxZeroReXmt = 0x284,
+	NvRegTxOneReXmt = 0x288,
+	NvRegTxManyReXmt = 0x28c,
+	NvRegTxLateCol = 0x290,
+	NvRegTxUnderflow = 0x294,
+	NvRegTxLossCarrier = 0x298,
+	NvRegTxExcessDef = 0x29c,
+	NvRegTxRetryErr = 0x2a0,
+	NvRegRxFrameErr = 0x2a4,
+	NvRegRxExtraByte = 0x2a8,
+	NvRegRxLateCol = 0x2ac,
+	NvRegRxRunt = 0x2b0,
+	NvRegRxFrameTooLong = 0x2b4,
+	NvRegRxOverflow = 0x2b8,
+	NvRegRxFCSErr = 0x2bc,
+	NvRegRxFrameAlignErr = 0x2c0,
+	NvRegRxLenErr = 0x2c4,
+	NvRegRxUnicast = 0x2c8,
+	NvRegRxMulticast = 0x2cc,
+	NvRegRxBroadcast = 0x2d0,
+	NvRegTxDef = 0x2d4,
+	NvRegTxFrame = 0x2d8,
+	NvRegRxCnt = 0x2dc,
+	NvRegTxPause = 0x2e0,
+	NvRegRxPause = 0x2e4,
+	NvRegRxDropFrame = 0x2e8,
+	NvRegVlanControl = 0x300,
+#define NVREG_VLANCONTROL_ENABLE	0x2000
+	NvRegMSIXMap0 = 0x3e0,
+	NvRegMSIXMap1 = 0x3e4,
+	NvRegMSIXIrqStatus = 0x3f0,
+
+	NvRegPowerState2 = 0x600,
+#define NVREG_POWERSTATE2_POWERUP_MASK		0x0F15
+#define NVREG_POWERSTATE2_POWERUP_REV_A3	0x0001
+#define NVREG_POWERSTATE2_PHY_RESET		0x0004
+#define NVREG_POWERSTATE2_GATE_CLOCKS		0x0F00
+};
+
+/* Big endian: should work, but is untested */
+struct ring_desc {
+	__le32 buf;
+	__le32 flaglen;
+};
+
+struct ring_desc_ex {
+	__le32 bufhigh;
+	__le32 buflow;
+	__le32 txvlan;
+	__le32 flaglen;
+};
+
+union ring_type {
+	struct ring_desc *orig;
+	struct ring_desc_ex *ex;
+};
+
+#define FLAG_MASK_V1 0xffff0000
+#define FLAG_MASK_V2 0xffffc000
+#define LEN_MASK_V1 (0xffffffff ^ FLAG_MASK_V1)
+#define LEN_MASK_V2 (0xffffffff ^ FLAG_MASK_V2)
+
+#define NV_TX_LASTPACKET	(1<<16)
+#define NV_TX_RETRYERROR	(1<<19)
+#define NV_TX_RETRYCOUNT_MASK	(0xF<<20)
+#define NV_TX_FORCED_INTERRUPT	(1<<24)
+#define NV_TX_DEFERRED		(1<<26)
+#define NV_TX_CARRIERLOST	(1<<27)
+#define NV_TX_LATECOLLISION	(1<<28)
+#define NV_TX_UNDERFLOW		(1<<29)
+#define NV_TX_ERROR		(1<<30)
+#define NV_TX_VALID		(1<<31)
+
+#define NV_TX2_LASTPACKET	(1<<29)
+#define NV_TX2_RETRYERROR	(1<<18)
+#define NV_TX2_RETRYCOUNT_MASK	(0xF<<19)
+#define NV_TX2_FORCED_INTERRUPT	(1<<30)
+#define NV_TX2_DEFERRED		(1<<25)
+#define NV_TX2_CARRIERLOST	(1<<26)
+#define NV_TX2_LATECOLLISION	(1<<27)
+#define NV_TX2_UNDERFLOW	(1<<28)
+/* error and valid are the same for both */
+#define NV_TX2_ERROR		(1<<30)
+#define NV_TX2_VALID		(1<<31)
+#define NV_TX2_TSO		(1<<28)
+#define NV_TX2_TSO_SHIFT	14
+#define NV_TX2_TSO_MAX_SHIFT	14
+#define NV_TX2_TSO_MAX_SIZE	(1<<NV_TX2_TSO_MAX_SHIFT)
+#define NV_TX2_CHECKSUM_L3	(1<<27)
+#define NV_TX2_CHECKSUM_L4	(1<<26)
+
+#define NV_TX3_VLAN_TAG_PRESENT (1<<18)
+
+#define NV_RX_DESCRIPTORVALID	(1<<16)
+#define NV_RX_MISSEDFRAME	(1<<17)
+#define NV_RX_SUBTRACT1		(1<<18)
+#define NV_RX_ERROR1		(1<<23)
+#define NV_RX_ERROR2		(1<<24)
+#define NV_RX_ERROR3		(1<<25)
+#define NV_RX_ERROR4		(1<<26)
+#define NV_RX_CRCERR		(1<<27)
+#define NV_RX_OVERFLOW		(1<<28)
+#define NV_RX_FRAMINGERR	(1<<29)
+#define NV_RX_ERROR		(1<<30)
+#define NV_RX_AVAIL		(1<<31)
+#define NV_RX_ERROR_MASK	(NV_RX_ERROR1|NV_RX_ERROR2|NV_RX_ERROR3|NV_RX_ERROR4|NV_RX_CRCERR|NV_RX_OVERFLOW|NV_RX_FRAMINGERR)
+
+#define NV_RX2_CHECKSUMMASK	(0x1C000000)
+#define NV_RX2_CHECKSUM_IP	(0x10000000)
+#define NV_RX2_CHECKSUM_IP_TCP	(0x14000000)
+#define NV_RX2_CHECKSUM_IP_UDP	(0x18000000)
+#define NV_RX2_DESCRIPTORVALID	(1<<29)
+#define NV_RX2_SUBTRACT1	(1<<25)
+#define NV_RX2_ERROR1		(1<<18)
+#define NV_RX2_ERROR2		(1<<19)
+#define NV_RX2_ERROR3		(1<<20)
+#define NV_RX2_ERROR4		(1<<21)
+#define NV_RX2_CRCERR		(1<<22)
+#define NV_RX2_OVERFLOW		(1<<23)
+#define NV_RX2_FRAMINGERR	(1<<24)
+/* error and avail are the same for both */
+#define NV_RX2_ERROR		(1<<30)
+#define NV_RX2_AVAIL		(1<<31)
+#define NV_RX2_ERROR_MASK	(NV_RX2_ERROR1|NV_RX2_ERROR2|NV_RX2_ERROR3|NV_RX2_ERROR4|NV_RX2_CRCERR|NV_RX2_OVERFLOW|NV_RX2_FRAMINGERR)
+
+#define NV_RX3_VLAN_TAG_PRESENT (1<<16)
+#define NV_RX3_VLAN_TAG_MASK	(0x0000FFFF)
+
+/* Miscellaneous hardware related defines: */
+#define NV_PCI_REGSZ_VER1	0x270
+#define NV_PCI_REGSZ_VER2	0x2d4
+#define NV_PCI_REGSZ_VER3	0x604
+#define NV_PCI_REGSZ_MAX	0x604
+
+/* various timeout delays: all in usec */
+#define NV_TXRX_RESET_DELAY	4
+#define NV_TXSTOP_DELAY1	10
+#define NV_TXSTOP_DELAY1MAX	500000
+#define NV_TXSTOP_DELAY2	100
+#define NV_RXSTOP_DELAY1	10
+#define NV_RXSTOP_DELAY1MAX	500000
+#define NV_RXSTOP_DELAY2	100
+#define NV_SETUP5_DELAY		5
+#define NV_SETUP5_DELAYMAX	50000
+#define NV_POWERUP_DELAY	5
+#define NV_POWERUP_DELAYMAX	5000
+#define NV_MIIBUSY_DELAY	50
+#define NV_MIIPHY_DELAY	10
+#define NV_MIIPHY_DELAYMAX	10000
+#define NV_MAC_RESET_DELAY	64
+
+#define NV_WAKEUPPATTERNS	5
+#define NV_WAKEUPMASKENTRIES	4
+
+/* General driver defaults */
+#define NV_WATCHDOG_TIMEO	(5*HZ)
+
+#define RX_RING_DEFAULT		512
+#define TX_RING_DEFAULT		256
+#define RX_RING_MIN		128
+#define TX_RING_MIN		64
+#define RING_MAX_DESC_VER_1	1024
+#define RING_MAX_DESC_VER_2_3	16384
+
+/* rx/tx mac addr + type + vlan + align + slack*/
+#define NV_RX_HEADERS		(64)
+/* even more slack. */
+#define NV_RX_ALLOC_PAD		(64)
+
+/* maximum mtu size */
+#define NV_PKTLIMIT_1	ETH_DATA_LEN	/* hard limit not known */
+#define NV_PKTLIMIT_2	9100	/* Actual limit according to NVidia: 9202 */
+
+#define OOM_REFILL	(1+HZ/20)
+#define POLL_WAIT	(1+HZ/100)
+#define LINK_TIMEOUT	(3*HZ)
+#define STATS_INTERVAL	(10*HZ)
+
+/*
+ * desc_ver values:
+ * The nic supports three different descriptor types:
+ * - DESC_VER_1: Original
+ * - DESC_VER_2: support for jumbo frames.
+ * - DESC_VER_3: 64-bit format.
+ */
+#define DESC_VER_1	1
+#define DESC_VER_2	2
+#define DESC_VER_3	3
+
+/* PHY defines */
+#define PHY_OUI_MARVELL		0x5043
+#define PHY_OUI_CICADA		0x03f1
+#define PHY_OUI_VITESSE		0x01c1
+#define PHY_OUI_REALTEK		0x0732
+#define PHY_OUI_REALTEK2	0x0020
+#define PHYID1_OUI_MASK	0x03ff
+#define PHYID1_OUI_SHFT	6
+#define PHYID2_OUI_MASK	0xfc00
+#define PHYID2_OUI_SHFT	10
+#define PHYID2_MODEL_MASK		0x03f0
+#define PHY_MODEL_REALTEK_8211		0x0110
+#define PHY_REV_MASK			0x0001
+#define PHY_REV_REALTEK_8211B		0x0000
+#define PHY_REV_REALTEK_8211C		0x0001
+#define PHY_MODEL_REALTEK_8201		0x0200
+#define PHY_MODEL_MARVELL_E3016		0x0220
+#define PHY_MARVELL_E3016_INITMASK	0x0300
+#define PHY_CICADA_INIT1	0x0f000
+#define PHY_CICADA_INIT2	0x0e00
+#define PHY_CICADA_INIT3	0x01000
+#define PHY_CICADA_INIT4	0x0200
+#define PHY_CICADA_INIT5	0x0004
+#define PHY_CICADA_INIT6	0x02000
+#define PHY_VITESSE_INIT_REG1	0x1f
+#define PHY_VITESSE_INIT_REG2	0x10
+#define PHY_VITESSE_INIT_REG3	0x11
+#define PHY_VITESSE_INIT_REG4	0x12
+#define PHY_VITESSE_INIT_MSK1	0xc
+#define PHY_VITESSE_INIT_MSK2	0x0180
+#define PHY_VITESSE_INIT1	0x52b5
+#define PHY_VITESSE_INIT2	0xaf8a
+#define PHY_VITESSE_INIT3	0x8
+#define PHY_VITESSE_INIT4	0x8f8a
+#define PHY_VITESSE_INIT5	0xaf86
+#define PHY_VITESSE_INIT6	0x8f86
+#define PHY_VITESSE_INIT7	0xaf82
+#define PHY_VITESSE_INIT8	0x0100
+#define PHY_VITESSE_INIT9	0x8f82
+#define PHY_VITESSE_INIT10	0x0
+#define PHY_REALTEK_INIT_REG1	0x1f
+#define PHY_REALTEK_INIT_REG2	0x19
+#define PHY_REALTEK_INIT_REG3	0x13
+#define PHY_REALTEK_INIT_REG4	0x14
+#define PHY_REALTEK_INIT_REG5	0x18
+#define PHY_REALTEK_INIT_REG6	0x11
+#define PHY_REALTEK_INIT_REG7	0x01
+#define PHY_REALTEK_INIT1	0x0000
+#define PHY_REALTEK_INIT2	0x8e00
+#define PHY_REALTEK_INIT3	0x0001
+#define PHY_REALTEK_INIT4	0xad17
+#define PHY_REALTEK_INIT5	0xfb54
+#define PHY_REALTEK_INIT6	0xf5c7
+#define PHY_REALTEK_INIT7	0x1000
+#define PHY_REALTEK_INIT8	0x0003
+#define PHY_REALTEK_INIT9	0x0008
+#define PHY_REALTEK_INIT10	0x0005
+#define PHY_REALTEK_INIT11	0x0200
+#define PHY_REALTEK_INIT_MSK1	0x0003
+
+#define PHY_GIGABIT	0x0100
+
+#define PHY_TIMEOUT	0x1
+#define PHY_ERROR	0x2
+
+#define PHY_100	0x1
+#define PHY_1000	0x2
+#define PHY_HALF	0x100
+
+#define NV_PAUSEFRAME_RX_CAPABLE 0x0001
+#define NV_PAUSEFRAME_TX_CAPABLE 0x0002
+#define NV_PAUSEFRAME_RX_ENABLE  0x0004
+#define NV_PAUSEFRAME_TX_ENABLE  0x0008
+#define NV_PAUSEFRAME_RX_REQ     0x0010
+#define NV_PAUSEFRAME_TX_REQ     0x0020
+#define NV_PAUSEFRAME_AUTONEG    0x0040
+
+/* MSI/MSI-X defines */
+#define NV_MSI_X_MAX_VECTORS  8
+#define NV_MSI_X_VECTORS_MASK 0x000f
+#define NV_MSI_CAPABLE        0x0010
+#define NV_MSI_X_CAPABLE      0x0020
+#define NV_MSI_ENABLED        0x0040
+#define NV_MSI_X_ENABLED      0x0080
+
+#define NV_MSI_X_VECTOR_ALL   0x0
+#define NV_MSI_X_VECTOR_RX    0x0
+#define NV_MSI_X_VECTOR_TX    0x1
+#define NV_MSI_X_VECTOR_OTHER 0x2
+
+#define NV_MSI_PRIV_OFFSET 0x68
+#define NV_MSI_PRIV_VALUE  0xffffffff
+
+#define NV_RESTART_TX         0x1
+#define NV_RESTART_RX         0x2
+
+#define NV_TX_LIMIT_COUNT     16
+
+#define NV_DYNAMIC_THRESHOLD        4
+#define NV_DYNAMIC_MAX_QUIET_COUNT  2048
+
+/* statistics */
+struct nv_ethtool_str {
+	char name[ETH_GSTRING_LEN];
+};
+
+static const struct nv_ethtool_str nv_estats_str[] = {
+	{ "tx_bytes" }, /* includes Ethernet FCS CRC */
+	{ "tx_zero_rexmt" },
+	{ "tx_one_rexmt" },
+	{ "tx_many_rexmt" },
+	{ "tx_late_collision" },
+	{ "tx_fifo_errors" },
+	{ "tx_carrier_errors" },
+	{ "tx_excess_deferral" },
+	{ "tx_retry_error" },
+	{ "rx_frame_error" },
+	{ "rx_extra_byte" },
+	{ "rx_late_collision" },
+	{ "rx_runt" },
+	{ "rx_frame_too_long" },
+	{ "rx_over_errors" },
+	{ "rx_crc_errors" },
+	{ "rx_frame_align_error" },
+	{ "rx_length_error" },
+	{ "rx_unicast" },
+	{ "rx_multicast" },
+	{ "rx_broadcast" },
+	{ "rx_packets" },
+	{ "rx_errors_total" },
+	{ "tx_errors_total" },
+
+	/* version 2 stats */
+	{ "tx_deferral" },
+	{ "tx_packets" },
+	{ "rx_bytes" }, /* includes Ethernet FCS CRC */
+	{ "tx_pause" },
+	{ "rx_pause" },
+	{ "rx_drop_frame" },
+
+	/* version 3 stats */
+	{ "tx_unicast" },
+	{ "tx_multicast" },
+	{ "tx_broadcast" }
+};
+
+struct nv_ethtool_stats {
+	u64 tx_bytes; /* should be ifconfig->tx_bytes + 4*tx_packets */
+	u64 tx_zero_rexmt;
+	u64 tx_one_rexmt;
+	u64 tx_many_rexmt;
+	u64 tx_late_collision;
+	u64 tx_fifo_errors;
+	u64 tx_carrier_errors;
+	u64 tx_excess_deferral;
+	u64 tx_retry_error;
+	u64 rx_frame_error;
+	u64 rx_extra_byte;
+	u64 rx_late_collision;
+	u64 rx_runt;
+	u64 rx_frame_too_long;
+	u64 rx_over_errors;
+	u64 rx_crc_errors;
+	u64 rx_frame_align_error;
+	u64 rx_length_error;
+	u64 rx_unicast;
+	u64 rx_multicast;
+	u64 rx_broadcast;
+	u64 rx_packets; /* should be ifconfig->rx_packets */
+	u64 rx_errors_total;
+	u64 tx_errors_total;
+
+	/* version 2 stats */
+	u64 tx_deferral;
+	u64 tx_packets; /* should be ifconfig->tx_packets */
+	u64 rx_bytes;   /* should be ifconfig->rx_bytes + 4*rx_packets */
+	u64 tx_pause;
+	u64 rx_pause;
+	u64 rx_drop_frame;
+
+	/* version 3 stats */
+	u64 tx_unicast;
+	u64 tx_multicast;
+	u64 tx_broadcast;
+};
+
+#define NV_DEV_STATISTICS_V3_COUNT (sizeof(struct nv_ethtool_stats)/sizeof(u64))
+#define NV_DEV_STATISTICS_V2_COUNT (NV_DEV_STATISTICS_V3_COUNT - 3)
+#define NV_DEV_STATISTICS_V1_COUNT (NV_DEV_STATISTICS_V2_COUNT - 6)
+
+/* diagnostics */
+#define NV_TEST_COUNT_BASE 3
+#define NV_TEST_COUNT_EXTENDED 4
+
+static const struct nv_ethtool_str nv_etests_str[] = {
+	{ "link      (online/offline)" },
+	{ "register  (offline)       " },
+	{ "interrupt (offline)       " },
+	{ "loopback  (offline)       " }
+};
+
+struct register_test {
+	__u32 reg;
+	__u32 mask;
+};
+
+static const struct register_test nv_registers_test[] = {
+	{ NvRegUnknownSetupReg6, 0x01 },
+	{ NvRegMisc1, 0x03c },
+	{ NvRegOffloadConfig, 0x03ff },
+	{ NvRegMulticastAddrA, 0xffffffff },
+	{ NvRegTxWatermark, 0x0ff },
+	{ NvRegWakeUpFlags, 0x07777 },
+	{ 0, 0 }
+};
+
+struct nv_skb_map {
+	struct sk_buff *skb;
+	dma_addr_t dma;
+	unsigned int dma_len:31;
+	unsigned int dma_single:1;
+	struct ring_desc_ex *first_tx_desc;
+	struct nv_skb_map *next_tx_ctx;
+};
+
+struct nv_txrx_stats {
+	u64 stat_rx_packets;
+	u64 stat_rx_bytes; /* not always available in HW */
+	u64 stat_rx_missed_errors;
+	u64 stat_rx_dropped;
+	u64 stat_tx_packets; /* not always available in HW */
+	u64 stat_tx_bytes;
+	u64 stat_tx_dropped;
+};
+
+#define nv_txrx_stats_inc(member) \
+		__this_cpu_inc(np->txrx_stats->member)
+#define nv_txrx_stats_add(member, count) \
+		__this_cpu_add(np->txrx_stats->member, (count))
+
+/*
+ * SMP locking:
+ * All hardware access under netdev_priv(dev)->lock, except the performance
+ * critical parts:
+ * - rx is (pseudo-) lockless: it relies on the single-threading provided
+ *	by the arch code for interrupts.
+ * - tx setup is lockless: it relies on netif_tx_lock. Actual submission
+ *	needs netdev_priv(dev)->lock :-(
+ * - set_multicast_list: preparation lockless, relies on netif_tx_lock.
+ *
+ * Hardware stats updates are protected by hwstats_lock:
+ * - updated by nv_do_stats_poll (timer). This is meant to avoid
+ *   integer wraparound in the NIC stats registers, at low frequency
+ *   (0.1 Hz)
+ * - updated by nv_get_ethtool_stats + nv_get_stats64
+ *
+ * Software stats are accessed only through 64b synchronization points
+ * and are not subject to other synchronization techniques (single
+ * update thread on the TX or RX paths).
+ */
+
+/* in dev: base, irq */
+struct fe_priv {
+	spinlock_t lock;
+
+	struct net_device *dev;
+	struct napi_struct napi;
+
+	/* hardware stats are updated in syscall and timer */
+	spinlock_t hwstats_lock;
+	struct nv_ethtool_stats estats;
+
+	int in_shutdown;
+	u32 linkspeed;
+	int duplex;
+	int autoneg;
+	int fixed_mode;
+	int phyaddr;
+	int wolenabled;
+	unsigned int phy_oui;
+	unsigned int phy_model;
+	unsigned int phy_rev;
+	u16 gigabit;
+	int intr_test;
+	int recover_error;
+	int quiet_count;
+
+	/* General data: RO fields */
+	dma_addr_t ring_addr;
+	struct pci_dev *pci_dev;
+	u32 orig_mac[2];
+	u32 events;
+	u32 irqmask;
+	u32 desc_ver;
+	u32 txrxctl_bits;
+	u32 vlanctl_bits;
+	u32 driver_data;
+	u32 device_id;
+	u32 register_size;
+	u32 mac_in_use;
+	int mgmt_version;
+	int mgmt_sema;
+
+	void __iomem *base;
+
+	/* rx specific fields.
+	 * Locking: Within irq hander or disable_irq+spin_lock(&np->lock);
+	 */
+	union ring_type get_rx, put_rx, last_rx;
+	struct nv_skb_map *get_rx_ctx, *put_rx_ctx;
+	struct nv_skb_map *last_rx_ctx;
+	struct nv_skb_map *rx_skb;
+
+	union ring_type rx_ring;
+	unsigned int rx_buf_sz;
+	unsigned int pkt_limit;
+	struct timer_list oom_kick;
+	struct timer_list nic_poll;
+	struct timer_list stats_poll;
+	u32 nic_poll_irq;
+	int rx_ring_size;
+
+	/* RX software stats */
+	struct u64_stats_sync swstats_rx_syncp;
+	struct nv_txrx_stats __percpu *txrx_stats;
+
+	/* media detection workaround.
+	 * Locking: Within irq hander or disable_irq+spin_lock(&np->lock);
+	 */
+	int need_linktimer;
+	unsigned long link_timeout;
+	/*
+	 * tx specific fields.
+	 */
+	union ring_type get_tx, put_tx, last_tx;
+	struct nv_skb_map *get_tx_ctx, *put_tx_ctx;
+	struct nv_skb_map *last_tx_ctx;
+	struct nv_skb_map *tx_skb;
+
+	union ring_type tx_ring;
+	u32 tx_flags;
+	int tx_ring_size;
+	int tx_limit;
+	u32 tx_pkts_in_progress;
+	struct nv_skb_map *tx_change_owner;
+	struct nv_skb_map *tx_end_flip;
+	int tx_stop;
+
+	/* TX software stats */
+	struct u64_stats_sync swstats_tx_syncp;
+
+	/* msi/msi-x fields */
+	u32 msi_flags;
+	struct msix_entry msi_x_entry[NV_MSI_X_MAX_VECTORS];
+
+	/* flow control */
+	u32 pause_flags;
+
+	/* power saved state */
+	u32 saved_config_space[NV_PCI_REGSZ_MAX/4];
+
+	/* for different msi-x irq type */
+	char name_rx[IFNAMSIZ + 3];       /* -rx    */
+	char name_tx[IFNAMSIZ + 3];       /* -tx    */
+	char name_other[IFNAMSIZ + 6];    /* -other */
+};
+
+/*
+ * Maximum number of loops until we assume that a bit in the irq mask
+ * is stuck. Overridable with module param.
+ */
+static int max_interrupt_work = 4;
+
+/*
+ * Optimization can be either throuput mode or cpu mode
+ *
+ * Throughput Mode: Every tx and rx packet will generate an interrupt.
+ * CPU Mode: Interrupts are controlled by a timer.
+ */
+enum {
+	NV_OPTIMIZATION_MODE_THROUGHPUT,
+	NV_OPTIMIZATION_MODE_CPU,
+	NV_OPTIMIZATION_MODE_DYNAMIC
+};
+static int optimization_mode = NV_OPTIMIZATION_MODE_DYNAMIC;
+
+/*
+ * Poll interval for timer irq
+ *
+ * This interval determines how frequent an interrupt is generated.
+ * The is value is determined by [(time_in_micro_secs * 100) / (2^10)]
+ * Min = 0, and Max = 65535
+ */
+static int poll_interval = -1;
+
+/*
+ * MSI interrupts
+ */
+enum {
+	NV_MSI_INT_DISABLED,
+	NV_MSI_INT_ENABLED
+};
+static int msi = NV_MSI_INT_ENABLED;
+
+/*
+ * MSIX interrupts
+ */
+enum {
+	NV_MSIX_INT_DISABLED,
+	NV_MSIX_INT_ENABLED
+};
+static int msix = NV_MSIX_INT_ENABLED;
+
+/*
+ * DMA 64bit
+ */
+enum {
+	NV_DMA_64BIT_DISABLED,
+	NV_DMA_64BIT_ENABLED
+};
+static int dma_64bit = NV_DMA_64BIT_ENABLED;
+
+/*
+ * Debug output control for tx_timeout
+ */
+static bool debug_tx_timeout = false;
+
+/*
+ * Crossover Detection
+ * Realtek 8201 phy + some OEM boards do not work properly.
+ */
+enum {
+	NV_CROSSOVER_DETECTION_DISABLED,
+	NV_CROSSOVER_DETECTION_ENABLED
+};
+static int phy_cross = NV_CROSSOVER_DETECTION_DISABLED;
+
+/*
+ * Power down phy when interface is down (persists through reboot;
+ * older Linux and other OSes may not power it up again)
+ */
+static int phy_power_down;
+
+static inline struct fe_priv *get_nvpriv(struct net_device *dev)
+{
+	return netdev_priv(dev);
+}
+
+static inline u8 __iomem *get_hwbase(struct net_device *dev)
+{
+	return ((struct fe_priv *)netdev_priv(dev))->base;
+}
+
+static inline void pci_push(u8 __iomem *base)
+{
+	/* force out pending posted writes */
+	readl(base);
+}
+
+static inline u32 nv_descr_getlength(struct ring_desc *prd, u32 v)
+{
+	return le32_to_cpu(prd->flaglen)
+		& ((v == DESC_VER_1) ? LEN_MASK_V1 : LEN_MASK_V2);
+}
+
+static inline u32 nv_descr_getlength_ex(struct ring_desc_ex *prd, u32 v)
+{
+	return le32_to_cpu(prd->flaglen) & LEN_MASK_V2;
+}
+
+static bool nv_optimized(struct fe_priv *np)
+{
+	if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2)
+		return false;
+	return true;
+}
+
+static int reg_delay(struct net_device *dev, int offset, u32 mask, u32 target,
+		     int delay, int delaymax)
+{
+	u8 __iomem *base = get_hwbase(dev);
+
+	pci_push(base);
+	do {
+		udelay(delay);
+		delaymax -= delay;
+		if (delaymax < 0)
+			return 1;
+	} while ((readl(base + offset) & mask) != target);
+	return 0;
+}
+
+#define NV_SETUP_RX_RING 0x01
+#define NV_SETUP_TX_RING 0x02
+
+static inline u32 dma_low(dma_addr_t addr)
+{
+	return addr;
+}
+
+static inline u32 dma_high(dma_addr_t addr)
+{
+	return addr>>31>>1;	/* 0 if 32bit, shift down by 32 if 64bit */
+}
+
+static void setup_hw_rings(struct net_device *dev, int rxtx_flags)
+{
+	struct fe_priv *np = get_nvpriv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+
+	if (!nv_optimized(np)) {
+		if (rxtx_flags & NV_SETUP_RX_RING)
+			writel(dma_low(np->ring_addr), base + NvRegRxRingPhysAddr);
+		if (rxtx_flags & NV_SETUP_TX_RING)
+			writel(dma_low(np->ring_addr + np->rx_ring_size*sizeof(struct ring_desc)), base + NvRegTxRingPhysAddr);
+	} else {
+		if (rxtx_flags & NV_SETUP_RX_RING) {
+			writel(dma_low(np->ring_addr), base + NvRegRxRingPhysAddr);
+			writel(dma_high(np->ring_addr), base + NvRegRxRingPhysAddrHigh);
+		}
+		if (rxtx_flags & NV_SETUP_TX_RING) {
+			writel(dma_low(np->ring_addr + np->rx_ring_size*sizeof(struct ring_desc_ex)), base + NvRegTxRingPhysAddr);
+			writel(dma_high(np->ring_addr + np->rx_ring_size*sizeof(struct ring_desc_ex)), base + NvRegTxRingPhysAddrHigh);
+		}
+	}
+}
+
+static void free_rings(struct net_device *dev)
+{
+	struct fe_priv *np = get_nvpriv(dev);
+
+	if (!nv_optimized(np)) {
+		if (np->rx_ring.orig)
+			dma_free_coherent(&np->pci_dev->dev,
+					  sizeof(struct ring_desc) *
+					  (np->rx_ring_size +
+					  np->tx_ring_size),
+					  np->rx_ring.orig, np->ring_addr);
+	} else {
+		if (np->rx_ring.ex)
+			dma_free_coherent(&np->pci_dev->dev,
+					  sizeof(struct ring_desc_ex) *
+					  (np->rx_ring_size +
+					  np->tx_ring_size),
+					  np->rx_ring.ex, np->ring_addr);
+	}
+	kfree(np->rx_skb);
+	kfree(np->tx_skb);
+}
+
+static int using_multi_irqs(struct net_device *dev)
+{
+	struct fe_priv *np = get_nvpriv(dev);
+
+	if (!(np->msi_flags & NV_MSI_X_ENABLED) ||
+	    ((np->msi_flags & NV_MSI_X_ENABLED) &&
+	     ((np->msi_flags & NV_MSI_X_VECTORS_MASK) == 0x1)))
+		return 0;
+	else
+		return 1;
+}
+
+static void nv_txrx_gate(struct net_device *dev, bool gate)
+{
+	struct fe_priv *np = get_nvpriv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+	u32 powerstate;
+
+	if (!np->mac_in_use &&
+	    (np->driver_data & DEV_HAS_POWER_CNTRL)) {
+		powerstate = readl(base + NvRegPowerState2);
+		if (gate)
+			powerstate |= NVREG_POWERSTATE2_GATE_CLOCKS;
+		else
+			powerstate &= ~NVREG_POWERSTATE2_GATE_CLOCKS;
+		writel(powerstate, base + NvRegPowerState2);
+	}
+}
+
+static void nv_enable_irq(struct net_device *dev)
+{
+	struct fe_priv *np = get_nvpriv(dev);
+
+	if (!using_multi_irqs(dev)) {
+		if (np->msi_flags & NV_MSI_X_ENABLED)
+			enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector);
+		else
+			enable_irq(np->pci_dev->irq);
+	} else {
+		enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector);
+		enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector);
+		enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector);
+	}
+}
+
+static void nv_disable_irq(struct net_device *dev)
+{
+	struct fe_priv *np = get_nvpriv(dev);
+
+	if (!using_multi_irqs(dev)) {
+		if (np->msi_flags & NV_MSI_X_ENABLED)
+			disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector);
+		else
+			disable_irq(np->pci_dev->irq);
+	} else {
+		disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector);
+		disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector);
+		disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector);
+	}
+}
+
+/* In MSIX mode, a write to irqmask behaves as XOR */
+static void nv_enable_hw_interrupts(struct net_device *dev, u32 mask)
+{
+	u8 __iomem *base = get_hwbase(dev);
+
+	writel(mask, base + NvRegIrqMask);
+}
+
+static void nv_disable_hw_interrupts(struct net_device *dev, u32 mask)
+{
+	struct fe_priv *np = get_nvpriv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+
+	if (np->msi_flags & NV_MSI_X_ENABLED) {
+		writel(mask, base + NvRegIrqMask);
+	} else {
+		if (np->msi_flags & NV_MSI_ENABLED)
+			writel(0, base + NvRegMSIIrqMask);
+		writel(0, base + NvRegIrqMask);
+	}
+}
+
+static void nv_napi_enable(struct net_device *dev)
+{
+	struct fe_priv *np = get_nvpriv(dev);
+
+	napi_enable(&np->napi);
+}
+
+static void nv_napi_disable(struct net_device *dev)
+{
+	struct fe_priv *np = get_nvpriv(dev);
+
+	napi_disable(&np->napi);
+}
+
+#define MII_READ	(-1)
+/* mii_rw: read/write a register on the PHY.
+ *
+ * Caller must guarantee serialization
+ */
+static int mii_rw(struct net_device *dev, int addr, int miireg, int value)
+{
+	u8 __iomem *base = get_hwbase(dev);
+	u32 reg;
+	int retval;
+
+	writel(NVREG_MIISTAT_MASK_RW, base + NvRegMIIStatus);
+
+	reg = readl(base + NvRegMIIControl);
+	if (reg & NVREG_MIICTL_INUSE) {
+		writel(NVREG_MIICTL_INUSE, base + NvRegMIIControl);
+		udelay(NV_MIIBUSY_DELAY);
+	}
+
+	reg = (addr << NVREG_MIICTL_ADDRSHIFT) | miireg;
+	if (value != MII_READ) {
+		writel(value, base + NvRegMIIData);
+		reg |= NVREG_MIICTL_WRITE;
+	}
+	writel(reg, base + NvRegMIIControl);
+
+	if (reg_delay(dev, NvRegMIIControl, NVREG_MIICTL_INUSE, 0,
+			NV_MIIPHY_DELAY, NV_MIIPHY_DELAYMAX)) {
+		retval = -1;
+	} else if (value != MII_READ) {
+		/* it was a write operation - fewer failures are detectable */
+		retval = 0;
+	} else if (readl(base + NvRegMIIStatus) & NVREG_MIISTAT_ERROR) {
+		retval = -1;
+	} else {
+		retval = readl(base + NvRegMIIData);
+	}
+
+	return retval;
+}
+
+static int phy_reset(struct net_device *dev, u32 bmcr_setup)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u32 miicontrol;
+	unsigned int tries = 0;
+
+	miicontrol = BMCR_RESET | bmcr_setup;
+	if (mii_rw(dev, np->phyaddr, MII_BMCR, miicontrol))
+		return -1;
+
+	/* wait for 500ms */
+	msleep(500);
+
+	/* must wait till reset is deasserted */
+	while (miicontrol & BMCR_RESET) {
+		usleep_range(10000, 20000);
+		miicontrol = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
+		/* FIXME: 100 tries seem excessive */
+		if (tries++ > 100)
+			return -1;
+	}
+	return 0;
+}
+
+static int init_realtek_8211b(struct net_device *dev, struct fe_priv *np)
+{
+	static const struct {
+		int reg;
+		int init;
+	} ri[] = {
+		{ PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1 },
+		{ PHY_REALTEK_INIT_REG2, PHY_REALTEK_INIT2 },
+		{ PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT3 },
+		{ PHY_REALTEK_INIT_REG3, PHY_REALTEK_INIT4 },
+		{ PHY_REALTEK_INIT_REG4, PHY_REALTEK_INIT5 },
+		{ PHY_REALTEK_INIT_REG5, PHY_REALTEK_INIT6 },
+		{ PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1 },
+	};
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(ri); i++) {
+		if (mii_rw(dev, np->phyaddr, ri[i].reg, ri[i].init))
+			return PHY_ERROR;
+	}
+
+	return 0;
+}
+
+static int init_realtek_8211c(struct net_device *dev, struct fe_priv *np)
+{
+	u32 reg;
+	u8 __iomem *base = get_hwbase(dev);
+	u32 powerstate = readl(base + NvRegPowerState2);
+
+	/* need to perform hw phy reset */
+	powerstate |= NVREG_POWERSTATE2_PHY_RESET;
+	writel(powerstate, base + NvRegPowerState2);
+	msleep(25);
+
+	powerstate &= ~NVREG_POWERSTATE2_PHY_RESET;
+	writel(powerstate, base + NvRegPowerState2);
+	msleep(25);
+
+	reg = mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG6, MII_READ);
+	reg |= PHY_REALTEK_INIT9;
+	if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG6, reg))
+		return PHY_ERROR;
+	if (mii_rw(dev, np->phyaddr,
+		   PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT10))
+		return PHY_ERROR;
+	reg = mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG7, MII_READ);
+	if (!(reg & PHY_REALTEK_INIT11)) {
+		reg |= PHY_REALTEK_INIT11;
+		if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG7, reg))
+			return PHY_ERROR;
+	}
+	if (mii_rw(dev, np->phyaddr,
+		   PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1))
+		return PHY_ERROR;
+
+	return 0;
+}
+
+static int init_realtek_8201(struct net_device *dev, struct fe_priv *np)
+{
+	u32 phy_reserved;
+
+	if (np->driver_data & DEV_NEED_PHY_INIT_FIX) {
+		phy_reserved = mii_rw(dev, np->phyaddr,
+				      PHY_REALTEK_INIT_REG6, MII_READ);
+		phy_reserved |= PHY_REALTEK_INIT7;
+		if (mii_rw(dev, np->phyaddr,
+			   PHY_REALTEK_INIT_REG6, phy_reserved))
+			return PHY_ERROR;
+	}
+
+	return 0;
+}
+
+static int init_realtek_8201_cross(struct net_device *dev, struct fe_priv *np)
+{
+	u32 phy_reserved;
+
+	if (phy_cross == NV_CROSSOVER_DETECTION_DISABLED) {
+		if (mii_rw(dev, np->phyaddr,
+			   PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT3))
+			return PHY_ERROR;
+		phy_reserved = mii_rw(dev, np->phyaddr,
+				      PHY_REALTEK_INIT_REG2, MII_READ);
+		phy_reserved &= ~PHY_REALTEK_INIT_MSK1;
+		phy_reserved |= PHY_REALTEK_INIT3;
+		if (mii_rw(dev, np->phyaddr,
+			   PHY_REALTEK_INIT_REG2, phy_reserved))
+			return PHY_ERROR;
+		if (mii_rw(dev, np->phyaddr,
+			   PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1))
+			return PHY_ERROR;
+	}
+
+	return 0;
+}
+
+static int init_cicada(struct net_device *dev, struct fe_priv *np,
+		       u32 phyinterface)
+{
+	u32 phy_reserved;
+
+	if (phyinterface & PHY_RGMII) {
+		phy_reserved = mii_rw(dev, np->phyaddr, MII_RESV1, MII_READ);
+		phy_reserved &= ~(PHY_CICADA_INIT1 | PHY_CICADA_INIT2);
+		phy_reserved |= (PHY_CICADA_INIT3 | PHY_CICADA_INIT4);
+		if (mii_rw(dev, np->phyaddr, MII_RESV1, phy_reserved))
+			return PHY_ERROR;
+		phy_reserved = mii_rw(dev, np->phyaddr, MII_NCONFIG, MII_READ);
+		phy_reserved |= PHY_CICADA_INIT5;
+		if (mii_rw(dev, np->phyaddr, MII_NCONFIG, phy_reserved))
+			return PHY_ERROR;
+	}
+	phy_reserved = mii_rw(dev, np->phyaddr, MII_SREVISION, MII_READ);
+	phy_reserved |= PHY_CICADA_INIT6;
+	if (mii_rw(dev, np->phyaddr, MII_SREVISION, phy_reserved))
+		return PHY_ERROR;
+
+	return 0;
+}
+
+static int init_vitesse(struct net_device *dev, struct fe_priv *np)
+{
+	u32 phy_reserved;
+
+	if (mii_rw(dev, np->phyaddr,
+		   PHY_VITESSE_INIT_REG1, PHY_VITESSE_INIT1))
+		return PHY_ERROR;
+	if (mii_rw(dev, np->phyaddr,
+		   PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT2))
+		return PHY_ERROR;
+	phy_reserved = mii_rw(dev, np->phyaddr,
+			      PHY_VITESSE_INIT_REG4, MII_READ);
+	if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG4, phy_reserved))
+		return PHY_ERROR;
+	phy_reserved = mii_rw(dev, np->phyaddr,
+			      PHY_VITESSE_INIT_REG3, MII_READ);
+	phy_reserved &= ~PHY_VITESSE_INIT_MSK1;
+	phy_reserved |= PHY_VITESSE_INIT3;
+	if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG3, phy_reserved))
+		return PHY_ERROR;
+	if (mii_rw(dev, np->phyaddr,
+		   PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT4))
+		return PHY_ERROR;
+	if (mii_rw(dev, np->phyaddr,
+		   PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT5))
+		return PHY_ERROR;
+	phy_reserved = mii_rw(dev, np->phyaddr,
+			      PHY_VITESSE_INIT_REG4, MII_READ);
+	phy_reserved &= ~PHY_VITESSE_INIT_MSK1;
+	phy_reserved |= PHY_VITESSE_INIT3;
+	if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG4, phy_reserved))
+		return PHY_ERROR;
+	phy_reserved = mii_rw(dev, np->phyaddr,
+			      PHY_VITESSE_INIT_REG3, MII_READ);
+	if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG3, phy_reserved))
+		return PHY_ERROR;
+	if (mii_rw(dev, np->phyaddr,
+		   PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT6))
+		return PHY_ERROR;
+	if (mii_rw(dev, np->phyaddr,
+		   PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT7))
+		return PHY_ERROR;
+	phy_reserved = mii_rw(dev, np->phyaddr,
+			      PHY_VITESSE_INIT_REG4, MII_READ);
+	if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG4, phy_reserved))
+		return PHY_ERROR;
+	phy_reserved = mii_rw(dev, np->phyaddr,
+			      PHY_VITESSE_INIT_REG3, MII_READ);
+	phy_reserved &= ~PHY_VITESSE_INIT_MSK2;
+	phy_reserved |= PHY_VITESSE_INIT8;
+	if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG3, phy_reserved))
+		return PHY_ERROR;
+	if (mii_rw(dev, np->phyaddr,
+		   PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT9))
+		return PHY_ERROR;
+	if (mii_rw(dev, np->phyaddr,
+		   PHY_VITESSE_INIT_REG1, PHY_VITESSE_INIT10))
+		return PHY_ERROR;
+
+	return 0;
+}
+
+static int phy_init(struct net_device *dev)
+{
+	struct fe_priv *np = get_nvpriv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+	u32 phyinterface;
+	u32 mii_status, mii_control, mii_control_1000, reg;
+
+	/* phy errata for E3016 phy */
+	if (np->phy_model == PHY_MODEL_MARVELL_E3016) {
+		reg = mii_rw(dev, np->phyaddr, MII_NCONFIG, MII_READ);
+		reg &= ~PHY_MARVELL_E3016_INITMASK;
+		if (mii_rw(dev, np->phyaddr, MII_NCONFIG, reg)) {
+			netdev_info(dev, "%s: phy write to errata reg failed\n",
+				    pci_name(np->pci_dev));
+			return PHY_ERROR;
+		}
+	}
+	if (np->phy_oui == PHY_OUI_REALTEK) {
+		if (np->phy_model == PHY_MODEL_REALTEK_8211 &&
+		    np->phy_rev == PHY_REV_REALTEK_8211B) {
+			if (init_realtek_8211b(dev, np)) {
+				netdev_info(dev, "%s: phy init failed\n",
+					    pci_name(np->pci_dev));
+				return PHY_ERROR;
+			}
+		} else if (np->phy_model == PHY_MODEL_REALTEK_8211 &&
+			   np->phy_rev == PHY_REV_REALTEK_8211C) {
+			if (init_realtek_8211c(dev, np)) {
+				netdev_info(dev, "%s: phy init failed\n",
+					    pci_name(np->pci_dev));
+				return PHY_ERROR;
+			}
+		} else if (np->phy_model == PHY_MODEL_REALTEK_8201) {
+			if (init_realtek_8201(dev, np)) {
+				netdev_info(dev, "%s: phy init failed\n",
+					    pci_name(np->pci_dev));
+				return PHY_ERROR;
+			}
+		}
+	}
+
+	/* set advertise register */
+	reg = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
+	reg |= (ADVERTISE_10HALF | ADVERTISE_10FULL |
+		ADVERTISE_100HALF | ADVERTISE_100FULL |
+		ADVERTISE_PAUSE_ASYM | ADVERTISE_PAUSE_CAP);
+	if (mii_rw(dev, np->phyaddr, MII_ADVERTISE, reg)) {
+		netdev_info(dev, "%s: phy write to advertise failed\n",
+			    pci_name(np->pci_dev));
+		return PHY_ERROR;
+	}
+
+	/* get phy interface type */
+	phyinterface = readl(base + NvRegPhyInterface);
+
+	/* see if gigabit phy */
+	mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
+	if (mii_status & PHY_GIGABIT) {
+		np->gigabit = PHY_GIGABIT;
+		mii_control_1000 = mii_rw(dev, np->phyaddr,
+					  MII_CTRL1000, MII_READ);
+		mii_control_1000 &= ~ADVERTISE_1000HALF;
+		if (phyinterface & PHY_RGMII)
+			mii_control_1000 |= ADVERTISE_1000FULL;
+		else
+			mii_control_1000 &= ~ADVERTISE_1000FULL;
+
+		if (mii_rw(dev, np->phyaddr, MII_CTRL1000, mii_control_1000)) {
+			netdev_info(dev, "%s: phy init failed\n",
+				    pci_name(np->pci_dev));
+			return PHY_ERROR;
+		}
+	} else
+		np->gigabit = 0;
+
+	mii_control = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
+	mii_control |= BMCR_ANENABLE;
+
+	if (np->phy_oui == PHY_OUI_REALTEK &&
+	    np->phy_model == PHY_MODEL_REALTEK_8211 &&
+	    np->phy_rev == PHY_REV_REALTEK_8211C) {
+		/* start autoneg since we already performed hw reset above */
+		mii_control |= BMCR_ANRESTART;
+		if (mii_rw(dev, np->phyaddr, MII_BMCR, mii_control)) {
+			netdev_info(dev, "%s: phy init failed\n",
+				    pci_name(np->pci_dev));
+			return PHY_ERROR;
+		}
+	} else {
+		/* reset the phy
+		 * (certain phys need bmcr to be setup with reset)
+		 */
+		if (phy_reset(dev, mii_control)) {
+			netdev_info(dev, "%s: phy reset failed\n",
+				    pci_name(np->pci_dev));
+			return PHY_ERROR;
+		}
+	}
+
+	/* phy vendor specific configuration */
+	if (np->phy_oui == PHY_OUI_CICADA) {
+		if (init_cicada(dev, np, phyinterface)) {
+			netdev_info(dev, "%s: phy init failed\n",
+				    pci_name(np->pci_dev));
+			return PHY_ERROR;
+		}
+	} else if (np->phy_oui == PHY_OUI_VITESSE) {
+		if (init_vitesse(dev, np)) {
+			netdev_info(dev, "%s: phy init failed\n",
+				    pci_name(np->pci_dev));
+			return PHY_ERROR;
+		}
+	} else if (np->phy_oui == PHY_OUI_REALTEK) {
+		if (np->phy_model == PHY_MODEL_REALTEK_8211 &&
+		    np->phy_rev == PHY_REV_REALTEK_8211B) {
+			/* reset could have cleared these out, set them back */
+			if (init_realtek_8211b(dev, np)) {
+				netdev_info(dev, "%s: phy init failed\n",
+					    pci_name(np->pci_dev));
+				return PHY_ERROR;
+			}
+		} else if (np->phy_model == PHY_MODEL_REALTEK_8201) {
+			if (init_realtek_8201(dev, np) ||
+			    init_realtek_8201_cross(dev, np)) {
+				netdev_info(dev, "%s: phy init failed\n",
+					    pci_name(np->pci_dev));
+				return PHY_ERROR;
+			}
+		}
+	}
+
+	/* some phys clear out pause advertisement on reset, set it back */
+	mii_rw(dev, np->phyaddr, MII_ADVERTISE, reg);
+
+	/* restart auto negotiation, power down phy */
+	mii_control = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
+	mii_control |= (BMCR_ANRESTART | BMCR_ANENABLE);
+	if (phy_power_down)
+		mii_control |= BMCR_PDOWN;
+	if (mii_rw(dev, np->phyaddr, MII_BMCR, mii_control))
+		return PHY_ERROR;
+
+	return 0;
+}
+
+static void nv_start_rx(struct net_device *dev)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+	u32 rx_ctrl = readl(base + NvRegReceiverControl);
+
+	/* Already running? Stop it. */
+	if ((readl(base + NvRegReceiverControl) & NVREG_RCVCTL_START) && !np->mac_in_use) {
+		rx_ctrl &= ~NVREG_RCVCTL_START;
+		writel(rx_ctrl, base + NvRegReceiverControl);
+		pci_push(base);
+	}
+	writel(np->linkspeed, base + NvRegLinkSpeed);
+	pci_push(base);
+	rx_ctrl |= NVREG_RCVCTL_START;
+	if (np->mac_in_use)
+		rx_ctrl &= ~NVREG_RCVCTL_RX_PATH_EN;
+	writel(rx_ctrl, base + NvRegReceiverControl);
+	pci_push(base);
+}
+
+static void nv_stop_rx(struct net_device *dev)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+	u32 rx_ctrl = readl(base + NvRegReceiverControl);
+
+	if (!np->mac_in_use)
+		rx_ctrl &= ~NVREG_RCVCTL_START;
+	else
+		rx_ctrl |= NVREG_RCVCTL_RX_PATH_EN;
+	writel(rx_ctrl, base + NvRegReceiverControl);
+	if (reg_delay(dev, NvRegReceiverStatus, NVREG_RCVSTAT_BUSY, 0,
+		      NV_RXSTOP_DELAY1, NV_RXSTOP_DELAY1MAX))
+		netdev_info(dev, "%s: ReceiverStatus remained busy\n",
+			    __func__);
+
+	udelay(NV_RXSTOP_DELAY2);
+	if (!np->mac_in_use)
+		writel(0, base + NvRegLinkSpeed);
+}
+
+static void nv_start_tx(struct net_device *dev)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+	u32 tx_ctrl = readl(base + NvRegTransmitterControl);
+
+	tx_ctrl |= NVREG_XMITCTL_START;
+	if (np->mac_in_use)
+		tx_ctrl &= ~NVREG_XMITCTL_TX_PATH_EN;
+	writel(tx_ctrl, base + NvRegTransmitterControl);
+	pci_push(base);
+}
+
+static void nv_stop_tx(struct net_device *dev)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+	u32 tx_ctrl = readl(base + NvRegTransmitterControl);
+
+	if (!np->mac_in_use)
+		tx_ctrl &= ~NVREG_XMITCTL_START;
+	else
+		tx_ctrl |= NVREG_XMITCTL_TX_PATH_EN;
+	writel(tx_ctrl, base + NvRegTransmitterControl);
+	if (reg_delay(dev, NvRegTransmitterStatus, NVREG_XMITSTAT_BUSY, 0,
+		      NV_TXSTOP_DELAY1, NV_TXSTOP_DELAY1MAX))
+		netdev_info(dev, "%s: TransmitterStatus remained busy\n",
+			    __func__);
+
+	udelay(NV_TXSTOP_DELAY2);
+	if (!np->mac_in_use)
+		writel(readl(base + NvRegTransmitPoll) & NVREG_TRANSMITPOLL_MAC_ADDR_REV,
+		       base + NvRegTransmitPoll);
+}
+
+static void nv_start_rxtx(struct net_device *dev)
+{
+	nv_start_rx(dev);
+	nv_start_tx(dev);
+}
+
+static void nv_stop_rxtx(struct net_device *dev)
+{
+	nv_stop_rx(dev);
+	nv_stop_tx(dev);
+}
+
+static void nv_txrx_reset(struct net_device *dev)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+
+	writel(NVREG_TXRXCTL_BIT2 | NVREG_TXRXCTL_RESET | np->txrxctl_bits, base + NvRegTxRxControl);
+	pci_push(base);
+	udelay(NV_TXRX_RESET_DELAY);
+	writel(NVREG_TXRXCTL_BIT2 | np->txrxctl_bits, base + NvRegTxRxControl);
+	pci_push(base);
+}
+
+static void nv_mac_reset(struct net_device *dev)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+	u32 temp1, temp2, temp3;
+
+	writel(NVREG_TXRXCTL_BIT2 | NVREG_TXRXCTL_RESET | np->txrxctl_bits, base + NvRegTxRxControl);
+	pci_push(base);
+
+	/* save registers since they will be cleared on reset */
+	temp1 = readl(base + NvRegMacAddrA);
+	temp2 = readl(base + NvRegMacAddrB);
+	temp3 = readl(base + NvRegTransmitPoll);
+
+	writel(NVREG_MAC_RESET_ASSERT, base + NvRegMacReset);
+	pci_push(base);
+	udelay(NV_MAC_RESET_DELAY);
+	writel(0, base + NvRegMacReset);
+	pci_push(base);
+	udelay(NV_MAC_RESET_DELAY);
+
+	/* restore saved registers */
+	writel(temp1, base + NvRegMacAddrA);
+	writel(temp2, base + NvRegMacAddrB);
+	writel(temp3, base + NvRegTransmitPoll);
+
+	writel(NVREG_TXRXCTL_BIT2 | np->txrxctl_bits, base + NvRegTxRxControl);
+	pci_push(base);
+}
+
+/* Caller must appropriately lock netdev_priv(dev)->hwstats_lock */
+static void nv_update_stats(struct net_device *dev)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+
+	/* If it happens that this is run in top-half context, then
+	 * replace the spin_lock of hwstats_lock with
+	 * spin_lock_irqsave() in calling functions. */
+	WARN_ONCE(in_irq(), "forcedeth: estats spin_lock(_bh) from top-half");
+	assert_spin_locked(&np->hwstats_lock);
+
+	/* query hardware */
+	np->estats.tx_bytes += readl(base + NvRegTxCnt);
+	np->estats.tx_zero_rexmt += readl(base + NvRegTxZeroReXmt);
+	np->estats.tx_one_rexmt += readl(base + NvRegTxOneReXmt);
+	np->estats.tx_many_rexmt += readl(base + NvRegTxManyReXmt);
+	np->estats.tx_late_collision += readl(base + NvRegTxLateCol);
+	np->estats.tx_fifo_errors += readl(base + NvRegTxUnderflow);
+	np->estats.tx_carrier_errors += readl(base + NvRegTxLossCarrier);
+	np->estats.tx_excess_deferral += readl(base + NvRegTxExcessDef);
+	np->estats.tx_retry_error += readl(base + NvRegTxRetryErr);
+	np->estats.rx_frame_error += readl(base + NvRegRxFrameErr);
+	np->estats.rx_extra_byte += readl(base + NvRegRxExtraByte);
+	np->estats.rx_late_collision += readl(base + NvRegRxLateCol);
+	np->estats.rx_runt += readl(base + NvRegRxRunt);
+	np->estats.rx_frame_too_long += readl(base + NvRegRxFrameTooLong);
+	np->estats.rx_over_errors += readl(base + NvRegRxOverflow);
+	np->estats.rx_crc_errors += readl(base + NvRegRxFCSErr);
+	np->estats.rx_frame_align_error += readl(base + NvRegRxFrameAlignErr);
+	np->estats.rx_length_error += readl(base + NvRegRxLenErr);
+	np->estats.rx_unicast += readl(base + NvRegRxUnicast);
+	np->estats.rx_multicast += readl(base + NvRegRxMulticast);
+	np->estats.rx_broadcast += readl(base + NvRegRxBroadcast);
+	np->estats.rx_packets =
+		np->estats.rx_unicast +
+		np->estats.rx_multicast +
+		np->estats.rx_broadcast;
+	np->estats.rx_errors_total =
+		np->estats.rx_crc_errors +
+		np->estats.rx_over_errors +
+		np->estats.rx_frame_error +
+		(np->estats.rx_frame_align_error - np->estats.rx_extra_byte) +
+		np->estats.rx_late_collision +
+		np->estats.rx_runt +
+		np->estats.rx_frame_too_long;
+	np->estats.tx_errors_total =
+		np->estats.tx_late_collision +
+		np->estats.tx_fifo_errors +
+		np->estats.tx_carrier_errors +
+		np->estats.tx_excess_deferral +
+		np->estats.tx_retry_error;
+
+	if (np->driver_data & DEV_HAS_STATISTICS_V2) {
+		np->estats.tx_deferral += readl(base + NvRegTxDef);
+		np->estats.tx_packets += readl(base + NvRegTxFrame);
+		np->estats.rx_bytes += readl(base + NvRegRxCnt);
+		np->estats.tx_pause += readl(base + NvRegTxPause);
+		np->estats.rx_pause += readl(base + NvRegRxPause);
+		np->estats.rx_drop_frame += readl(base + NvRegRxDropFrame);
+		np->estats.rx_errors_total += np->estats.rx_drop_frame;
+	}
+
+	if (np->driver_data & DEV_HAS_STATISTICS_V3) {
+		np->estats.tx_unicast += readl(base + NvRegTxUnicast);
+		np->estats.tx_multicast += readl(base + NvRegTxMulticast);
+		np->estats.tx_broadcast += readl(base + NvRegTxBroadcast);
+	}
+}
+
+static void nv_get_stats(int cpu, struct fe_priv *np,
+			 struct rtnl_link_stats64 *storage)
+{
+	struct nv_txrx_stats *src = per_cpu_ptr(np->txrx_stats, cpu);
+	unsigned int syncp_start;
+	u64 rx_packets, rx_bytes, rx_dropped, rx_missed_errors;
+	u64 tx_packets, tx_bytes, tx_dropped;
+
+	do {
+		syncp_start = u64_stats_fetch_begin_irq(&np->swstats_rx_syncp);
+		rx_packets       = src->stat_rx_packets;
+		rx_bytes         = src->stat_rx_bytes;
+		rx_dropped       = src->stat_rx_dropped;
+		rx_missed_errors = src->stat_rx_missed_errors;
+	} while (u64_stats_fetch_retry_irq(&np->swstats_rx_syncp, syncp_start));
+
+	storage->rx_packets       += rx_packets;
+	storage->rx_bytes         += rx_bytes;
+	storage->rx_dropped       += rx_dropped;
+	storage->rx_missed_errors += rx_missed_errors;
+
+	do {
+		syncp_start = u64_stats_fetch_begin_irq(&np->swstats_tx_syncp);
+		tx_packets  = src->stat_tx_packets;
+		tx_bytes    = src->stat_tx_bytes;
+		tx_dropped  = src->stat_tx_dropped;
+	} while (u64_stats_fetch_retry_irq(&np->swstats_tx_syncp, syncp_start));
+
+	storage->tx_packets += tx_packets;
+	storage->tx_bytes   += tx_bytes;
+	storage->tx_dropped += tx_dropped;
+}
+
+/*
+ * nv_get_stats64: dev->ndo_get_stats64 function
+ * Get latest stats value from the nic.
+ * Called with read_lock(&dev_base_lock) held for read -
+ * only synchronized against unregister_netdevice.
+ */
+static void
+nv_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *storage)
+	__acquires(&netdev_priv(dev)->hwstats_lock)
+	__releases(&netdev_priv(dev)->hwstats_lock)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	int cpu;
+
+	/*
+	 * Note: because HW stats are not always available and for
+	 * consistency reasons, the following ifconfig stats are
+	 * managed by software: rx_bytes, tx_bytes, rx_packets and
+	 * tx_packets. The related hardware stats reported by ethtool
+	 * should be equivalent to these ifconfig stats, with 4
+	 * additional bytes per packet (Ethernet FCS CRC), except for
+	 * tx_packets when TSO kicks in.
+	 */
+
+	/* software stats */
+	for_each_online_cpu(cpu)
+		nv_get_stats(cpu, np, storage);
+
+	/* If the nic supports hw counters then retrieve latest values */
+	if (np->driver_data & DEV_HAS_STATISTICS_V123) {
+		spin_lock_bh(&np->hwstats_lock);
+
+		nv_update_stats(dev);
+
+		/* generic stats */
+		storage->rx_errors = np->estats.rx_errors_total;
+		storage->tx_errors = np->estats.tx_errors_total;
+
+		/* meaningful only when NIC supports stats v3 */
+		storage->multicast = np->estats.rx_multicast;
+
+		/* detailed rx_errors */
+		storage->rx_length_errors = np->estats.rx_length_error;
+		storage->rx_over_errors   = np->estats.rx_over_errors;
+		storage->rx_crc_errors    = np->estats.rx_crc_errors;
+		storage->rx_frame_errors  = np->estats.rx_frame_align_error;
+		storage->rx_fifo_errors   = np->estats.rx_drop_frame;
+
+		/* detailed tx_errors */
+		storage->tx_carrier_errors = np->estats.tx_carrier_errors;
+		storage->tx_fifo_errors    = np->estats.tx_fifo_errors;
+
+		spin_unlock_bh(&np->hwstats_lock);
+	}
+}
+
+/*
+ * nv_alloc_rx: fill rx ring entries.
+ * Return 1 if the allocations for the skbs failed and the
+ * rx engine is without Available descriptors
+ */
+static int nv_alloc_rx(struct net_device *dev)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	struct ring_desc *less_rx;
+
+	less_rx = np->get_rx.orig;
+	if (less_rx-- == np->rx_ring.orig)
+		less_rx = np->last_rx.orig;
+
+	while (np->put_rx.orig != less_rx) {
+		struct sk_buff *skb = netdev_alloc_skb(dev, np->rx_buf_sz + NV_RX_ALLOC_PAD);
+		if (likely(skb)) {
+			np->put_rx_ctx->skb = skb;
+			np->put_rx_ctx->dma = dma_map_single(&np->pci_dev->dev,
+							     skb->data,
+							     skb_tailroom(skb),
+							     DMA_FROM_DEVICE);
+			if (unlikely(dma_mapping_error(&np->pci_dev->dev,
+						       np->put_rx_ctx->dma))) {
+				kfree_skb(skb);
+				goto packet_dropped;
+			}
+			np->put_rx_ctx->dma_len = skb_tailroom(skb);
+			np->put_rx.orig->buf = cpu_to_le32(np->put_rx_ctx->dma);
+			wmb();
+			np->put_rx.orig->flaglen = cpu_to_le32(np->rx_buf_sz | NV_RX_AVAIL);
+			if (unlikely(np->put_rx.orig++ == np->last_rx.orig))
+				np->put_rx.orig = np->rx_ring.orig;
+			if (unlikely(np->put_rx_ctx++ == np->last_rx_ctx))
+				np->put_rx_ctx = np->rx_skb;
+		} else {
+packet_dropped:
+			u64_stats_update_begin(&np->swstats_rx_syncp);
+			nv_txrx_stats_inc(stat_rx_dropped);
+			u64_stats_update_end(&np->swstats_rx_syncp);
+			return 1;
+		}
+	}
+	return 0;
+}
+
+static int nv_alloc_rx_optimized(struct net_device *dev)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	struct ring_desc_ex *less_rx;
+
+	less_rx = np->get_rx.ex;
+	if (less_rx-- == np->rx_ring.ex)
+		less_rx = np->last_rx.ex;
+
+	while (np->put_rx.ex != less_rx) {
+		struct sk_buff *skb = netdev_alloc_skb(dev, np->rx_buf_sz + NV_RX_ALLOC_PAD);
+		if (likely(skb)) {
+			np->put_rx_ctx->skb = skb;
+			np->put_rx_ctx->dma = dma_map_single(&np->pci_dev->dev,
+							     skb->data,
+							     skb_tailroom(skb),
+							     DMA_FROM_DEVICE);
+			if (unlikely(dma_mapping_error(&np->pci_dev->dev,
+						       np->put_rx_ctx->dma))) {
+				kfree_skb(skb);
+				goto packet_dropped;
+			}
+			np->put_rx_ctx->dma_len = skb_tailroom(skb);
+			np->put_rx.ex->bufhigh = cpu_to_le32(dma_high(np->put_rx_ctx->dma));
+			np->put_rx.ex->buflow = cpu_to_le32(dma_low(np->put_rx_ctx->dma));
+			wmb();
+			np->put_rx.ex->flaglen = cpu_to_le32(np->rx_buf_sz | NV_RX2_AVAIL);
+			if (unlikely(np->put_rx.ex++ == np->last_rx.ex))
+				np->put_rx.ex = np->rx_ring.ex;
+			if (unlikely(np->put_rx_ctx++ == np->last_rx_ctx))
+				np->put_rx_ctx = np->rx_skb;
+		} else {
+packet_dropped:
+			u64_stats_update_begin(&np->swstats_rx_syncp);
+			nv_txrx_stats_inc(stat_rx_dropped);
+			u64_stats_update_end(&np->swstats_rx_syncp);
+			return 1;
+		}
+	}
+	return 0;
+}
+
+/* If rx bufs are exhausted called after 50ms to attempt to refresh */
+static void nv_do_rx_refill(struct timer_list *t)
+{
+	struct fe_priv *np = from_timer(np, t, oom_kick);
+
+	/* Just reschedule NAPI rx processing */
+	napi_schedule(&np->napi);
+}
+
+static void nv_init_rx(struct net_device *dev)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	int i;
+
+	np->get_rx = np->rx_ring;
+	np->put_rx = np->rx_ring;
+
+	if (!nv_optimized(np))
+		np->last_rx.orig = &np->rx_ring.orig[np->rx_ring_size-1];
+	else
+		np->last_rx.ex = &np->rx_ring.ex[np->rx_ring_size-1];
+	np->get_rx_ctx = np->rx_skb;
+	np->put_rx_ctx = np->rx_skb;
+	np->last_rx_ctx = &np->rx_skb[np->rx_ring_size-1];
+
+	for (i = 0; i < np->rx_ring_size; i++) {
+		if (!nv_optimized(np)) {
+			np->rx_ring.orig[i].flaglen = 0;
+			np->rx_ring.orig[i].buf = 0;
+		} else {
+			np->rx_ring.ex[i].flaglen = 0;
+			np->rx_ring.ex[i].txvlan = 0;
+			np->rx_ring.ex[i].bufhigh = 0;
+			np->rx_ring.ex[i].buflow = 0;
+		}
+		np->rx_skb[i].skb = NULL;
+		np->rx_skb[i].dma = 0;
+	}
+}
+
+static void nv_init_tx(struct net_device *dev)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	int i;
+
+	np->get_tx = np->tx_ring;
+	np->put_tx = np->tx_ring;
+
+	if (!nv_optimized(np))
+		np->last_tx.orig = &np->tx_ring.orig[np->tx_ring_size-1];
+	else
+		np->last_tx.ex = &np->tx_ring.ex[np->tx_ring_size-1];
+	np->get_tx_ctx = np->tx_skb;
+	np->put_tx_ctx = np->tx_skb;
+	np->last_tx_ctx = &np->tx_skb[np->tx_ring_size-1];
+	netdev_reset_queue(np->dev);
+	np->tx_pkts_in_progress = 0;
+	np->tx_change_owner = NULL;
+	np->tx_end_flip = NULL;
+	np->tx_stop = 0;
+
+	for (i = 0; i < np->tx_ring_size; i++) {
+		if (!nv_optimized(np)) {
+			np->tx_ring.orig[i].flaglen = 0;
+			np->tx_ring.orig[i].buf = 0;
+		} else {
+			np->tx_ring.ex[i].flaglen = 0;
+			np->tx_ring.ex[i].txvlan = 0;
+			np->tx_ring.ex[i].bufhigh = 0;
+			np->tx_ring.ex[i].buflow = 0;
+		}
+		np->tx_skb[i].skb = NULL;
+		np->tx_skb[i].dma = 0;
+		np->tx_skb[i].dma_len = 0;
+		np->tx_skb[i].dma_single = 0;
+		np->tx_skb[i].first_tx_desc = NULL;
+		np->tx_skb[i].next_tx_ctx = NULL;
+	}
+}
+
+static int nv_init_ring(struct net_device *dev)
+{
+	struct fe_priv *np = netdev_priv(dev);
+
+	nv_init_tx(dev);
+	nv_init_rx(dev);
+
+	if (!nv_optimized(np))
+		return nv_alloc_rx(dev);
+	else
+		return nv_alloc_rx_optimized(dev);
+}
+
+static void nv_unmap_txskb(struct fe_priv *np, struct nv_skb_map *tx_skb)
+{
+	if (tx_skb->dma) {
+		if (tx_skb->dma_single)
+			dma_unmap_single(&np->pci_dev->dev, tx_skb->dma,
+					 tx_skb->dma_len,
+					 DMA_TO_DEVICE);
+		else
+			dma_unmap_page(&np->pci_dev->dev, tx_skb->dma,
+				       tx_skb->dma_len,
+				       DMA_TO_DEVICE);
+		tx_skb->dma = 0;
+	}
+}
+
+static int nv_release_txskb(struct fe_priv *np, struct nv_skb_map *tx_skb)
+{
+	nv_unmap_txskb(np, tx_skb);
+	if (tx_skb->skb) {
+		dev_kfree_skb_any(tx_skb->skb);
+		tx_skb->skb = NULL;
+		return 1;
+	}
+	return 0;
+}
+
+static void nv_drain_tx(struct net_device *dev)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	unsigned int i;
+
+	for (i = 0; i < np->tx_ring_size; i++) {
+		if (!nv_optimized(np)) {
+			np->tx_ring.orig[i].flaglen = 0;
+			np->tx_ring.orig[i].buf = 0;
+		} else {
+			np->tx_ring.ex[i].flaglen = 0;
+			np->tx_ring.ex[i].txvlan = 0;
+			np->tx_ring.ex[i].bufhigh = 0;
+			np->tx_ring.ex[i].buflow = 0;
+		}
+		if (nv_release_txskb(np, &np->tx_skb[i])) {
+			u64_stats_update_begin(&np->swstats_tx_syncp);
+			nv_txrx_stats_inc(stat_tx_dropped);
+			u64_stats_update_end(&np->swstats_tx_syncp);
+		}
+		np->tx_skb[i].dma = 0;
+		np->tx_skb[i].dma_len = 0;
+		np->tx_skb[i].dma_single = 0;
+		np->tx_skb[i].first_tx_desc = NULL;
+		np->tx_skb[i].next_tx_ctx = NULL;
+	}
+	np->tx_pkts_in_progress = 0;
+	np->tx_change_owner = NULL;
+	np->tx_end_flip = NULL;
+}
+
+static void nv_drain_rx(struct net_device *dev)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	int i;
+
+	for (i = 0; i < np->rx_ring_size; i++) {
+		if (!nv_optimized(np)) {
+			np->rx_ring.orig[i].flaglen = 0;
+			np->rx_ring.orig[i].buf = 0;
+		} else {
+			np->rx_ring.ex[i].flaglen = 0;
+			np->rx_ring.ex[i].txvlan = 0;
+			np->rx_ring.ex[i].bufhigh = 0;
+			np->rx_ring.ex[i].buflow = 0;
+		}
+		wmb();
+		if (np->rx_skb[i].skb) {
+			dma_unmap_single(&np->pci_dev->dev, np->rx_skb[i].dma,
+					 (skb_end_pointer(np->rx_skb[i].skb) -
+					 np->rx_skb[i].skb->data),
+					 DMA_FROM_DEVICE);
+			dev_kfree_skb(np->rx_skb[i].skb);
+			np->rx_skb[i].skb = NULL;
+		}
+	}
+}
+
+static void nv_drain_rxtx(struct net_device *dev)
+{
+	nv_drain_tx(dev);
+	nv_drain_rx(dev);
+}
+
+static inline u32 nv_get_empty_tx_slots(struct fe_priv *np)
+{
+	return (u32)(np->tx_ring_size - ((np->tx_ring_size + (np->put_tx_ctx - np->get_tx_ctx)) % np->tx_ring_size));
+}
+
+static void nv_legacybackoff_reseed(struct net_device *dev)
+{
+	u8 __iomem *base = get_hwbase(dev);
+	u32 reg;
+	u32 low;
+	int tx_status = 0;
+
+	reg = readl(base + NvRegSlotTime) & ~NVREG_SLOTTIME_MASK;
+	get_random_bytes(&low, sizeof(low));
+	reg |= low & NVREG_SLOTTIME_MASK;
+
+	/* Need to stop tx before change takes effect.
+	 * Caller has already gained np->lock.
+	 */
+	tx_status = readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_START;
+	if (tx_status)
+		nv_stop_tx(dev);
+	nv_stop_rx(dev);
+	writel(reg, base + NvRegSlotTime);
+	if (tx_status)
+		nv_start_tx(dev);
+	nv_start_rx(dev);
+}
+
+/* Gear Backoff Seeds */
+#define BACKOFF_SEEDSET_ROWS	8
+#define BACKOFF_SEEDSET_LFSRS	15
+
+/* Known Good seed sets */
+static const u32 main_seedset[BACKOFF_SEEDSET_ROWS][BACKOFF_SEEDSET_LFSRS] = {
+	{145, 155, 165, 175, 185, 196, 235, 245, 255, 265, 275, 285, 660, 690, 874},
+	{245, 255, 265, 575, 385, 298, 335, 345, 355, 366, 375, 385, 761, 790, 974},
+	{145, 155, 165, 175, 185, 196, 235, 245, 255, 265, 275, 285, 660, 690, 874},
+	{245, 255, 265, 575, 385, 298, 335, 345, 355, 366, 375, 386, 761, 790, 974},
+	{266, 265, 276, 585, 397, 208, 345, 355, 365, 376, 385, 396, 771, 700, 984},
+	{266, 265, 276, 586, 397, 208, 346, 355, 365, 376, 285, 396, 771, 700, 984},
+	{366, 365, 376, 686, 497, 308, 447, 455, 466, 476, 485, 496, 871, 800,  84},
+	{466, 465, 476, 786, 597, 408, 547, 555, 566, 576, 585, 597, 971, 900, 184} };
+
+static const u32 gear_seedset[BACKOFF_SEEDSET_ROWS][BACKOFF_SEEDSET_LFSRS] = {
+	{251, 262, 273, 324, 319, 508, 375, 364, 341, 371, 398, 193, 375,  30, 295},
+	{351, 375, 373, 469, 551, 639, 477, 464, 441, 472, 498, 293, 476, 130, 395},
+	{351, 375, 373, 469, 551, 639, 477, 464, 441, 472, 498, 293, 476, 130, 397},
+	{251, 262, 273, 324, 319, 508, 375, 364, 341, 371, 398, 193, 375,  30, 295},
+	{251, 262, 273, 324, 319, 508, 375, 364, 341, 371, 398, 193, 375,  30, 295},
+	{351, 375, 373, 469, 551, 639, 477, 464, 441, 472, 498, 293, 476, 130, 395},
+	{351, 375, 373, 469, 551, 639, 477, 464, 441, 472, 498, 293, 476, 130, 395},
+	{351, 375, 373, 469, 551, 639, 477, 464, 441, 472, 498, 293, 476, 130, 395} };
+
+static void nv_gear_backoff_reseed(struct net_device *dev)
+{
+	u8 __iomem *base = get_hwbase(dev);
+	u32 miniseed1, miniseed2, miniseed2_reversed, miniseed3, miniseed3_reversed;
+	u32 temp, seedset, combinedSeed;
+	int i;
+
+	/* Setup seed for free running LFSR */
+	/* We are going to read the time stamp counter 3 times
+	   and swizzle bits around to increase randomness */
+	get_random_bytes(&miniseed1, sizeof(miniseed1));
+	miniseed1 &= 0x0fff;
+	if (miniseed1 == 0)
+		miniseed1 = 0xabc;
+
+	get_random_bytes(&miniseed2, sizeof(miniseed2));
+	miniseed2 &= 0x0fff;
+	if (miniseed2 == 0)
+		miniseed2 = 0xabc;
+	miniseed2_reversed =
+		((miniseed2 & 0xF00) >> 8) |
+		 (miniseed2 & 0x0F0) |
+		 ((miniseed2 & 0x00F) << 8);
+
+	get_random_bytes(&miniseed3, sizeof(miniseed3));
+	miniseed3 &= 0x0fff;
+	if (miniseed3 == 0)
+		miniseed3 = 0xabc;
+	miniseed3_reversed =
+		((miniseed3 & 0xF00) >> 8) |
+		 (miniseed3 & 0x0F0) |
+		 ((miniseed3 & 0x00F) << 8);
+
+	combinedSeed = ((miniseed1 ^ miniseed2_reversed) << 12) |
+		       (miniseed2 ^ miniseed3_reversed);
+
+	/* Seeds can not be zero */
+	if ((combinedSeed & NVREG_BKOFFCTRL_SEED_MASK) == 0)
+		combinedSeed |= 0x08;
+	if ((combinedSeed & (NVREG_BKOFFCTRL_SEED_MASK << NVREG_BKOFFCTRL_GEAR)) == 0)
+		combinedSeed |= 0x8000;
+
+	/* No need to disable tx here */
+	temp = NVREG_BKOFFCTRL_DEFAULT | (0 << NVREG_BKOFFCTRL_SELECT);
+	temp |= combinedSeed & NVREG_BKOFFCTRL_SEED_MASK;
+	temp |= combinedSeed >> NVREG_BKOFFCTRL_GEAR;
+	writel(temp, base + NvRegBackOffControl);
+
+	/* Setup seeds for all gear LFSRs. */
+	get_random_bytes(&seedset, sizeof(seedset));
+	seedset = seedset % BACKOFF_SEEDSET_ROWS;
+	for (i = 1; i <= BACKOFF_SEEDSET_LFSRS; i++) {
+		temp = NVREG_BKOFFCTRL_DEFAULT | (i << NVREG_BKOFFCTRL_SELECT);
+		temp |= main_seedset[seedset][i-1] & 0x3ff;
+		temp |= ((gear_seedset[seedset][i-1] & 0x3ff) << NVREG_BKOFFCTRL_GEAR);
+		writel(temp, base + NvRegBackOffControl);
+	}
+}
+
+/*
+ * nv_start_xmit: dev->hard_start_xmit function
+ * Called with netif_tx_lock held.
+ */
+static netdev_tx_t nv_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u32 tx_flags = 0;
+	u32 tx_flags_extra = (np->desc_ver == DESC_VER_1 ? NV_TX_LASTPACKET : NV_TX2_LASTPACKET);
+	unsigned int fragments = skb_shinfo(skb)->nr_frags;
+	unsigned int i;
+	u32 offset = 0;
+	u32 bcnt;
+	u32 size = skb_headlen(skb);
+	u32 entries = (size >> NV_TX2_TSO_MAX_SHIFT) + ((size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0);
+	u32 empty_slots;
+	struct ring_desc *put_tx;
+	struct ring_desc *start_tx;
+	struct ring_desc *prev_tx;
+	struct nv_skb_map *prev_tx_ctx;
+	struct nv_skb_map *tmp_tx_ctx = NULL, *start_tx_ctx = NULL;
+	unsigned long flags;
+	netdev_tx_t ret = NETDEV_TX_OK;
+
+	/* add fragments to entries count */
+	for (i = 0; i < fragments; i++) {
+		u32 frag_size = skb_frag_size(&skb_shinfo(skb)->frags[i]);
+
+		entries += (frag_size >> NV_TX2_TSO_MAX_SHIFT) +
+			   ((frag_size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0);
+	}
+
+	spin_lock_irqsave(&np->lock, flags);
+	empty_slots = nv_get_empty_tx_slots(np);
+	if (unlikely(empty_slots <= entries)) {
+		netif_stop_queue(dev);
+		np->tx_stop = 1;
+		spin_unlock_irqrestore(&np->lock, flags);
+
+		/* When normal packets and/or xmit_more packets fill up
+		 * tx_desc, it is necessary to trigger NIC tx reg.
+		 */
+		ret = NETDEV_TX_BUSY;
+		goto txkick;
+	}
+	spin_unlock_irqrestore(&np->lock, flags);
+
+	start_tx = put_tx = np->put_tx.orig;
+
+	/* setup the header buffer */
+	do {
+		bcnt = (size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : size;
+		np->put_tx_ctx->dma = dma_map_single(&np->pci_dev->dev,
+						     skb->data + offset, bcnt,
+						     DMA_TO_DEVICE);
+		if (unlikely(dma_mapping_error(&np->pci_dev->dev,
+					       np->put_tx_ctx->dma))) {
+			/* on DMA mapping error - drop the packet */
+			dev_kfree_skb_any(skb);
+			u64_stats_update_begin(&np->swstats_tx_syncp);
+			nv_txrx_stats_inc(stat_tx_dropped);
+			u64_stats_update_end(&np->swstats_tx_syncp);
+
+			ret = NETDEV_TX_OK;
+
+			goto dma_error;
+		}
+		np->put_tx_ctx->dma_len = bcnt;
+		np->put_tx_ctx->dma_single = 1;
+		put_tx->buf = cpu_to_le32(np->put_tx_ctx->dma);
+		put_tx->flaglen = cpu_to_le32((bcnt-1) | tx_flags);
+
+		tx_flags = np->tx_flags;
+		offset += bcnt;
+		size -= bcnt;
+		if (unlikely(put_tx++ == np->last_tx.orig))
+			put_tx = np->tx_ring.orig;
+		if (unlikely(np->put_tx_ctx++ == np->last_tx_ctx))
+			np->put_tx_ctx = np->tx_skb;
+	} while (size);
+
+	/* setup the fragments */
+	for (i = 0; i < fragments; i++) {
+		const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
+		u32 frag_size = skb_frag_size(frag);
+		offset = 0;
+
+		do {
+			if (!start_tx_ctx)
+				start_tx_ctx = tmp_tx_ctx = np->put_tx_ctx;
+
+			bcnt = (frag_size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : frag_size;
+			np->put_tx_ctx->dma = skb_frag_dma_map(
+							&np->pci_dev->dev,
+							frag, offset,
+							bcnt,
+							DMA_TO_DEVICE);
+			if (unlikely(dma_mapping_error(&np->pci_dev->dev,
+						       np->put_tx_ctx->dma))) {
+
+				/* Unwind the mapped fragments */
+				do {
+					nv_unmap_txskb(np, start_tx_ctx);
+					if (unlikely(tmp_tx_ctx++ == np->last_tx_ctx))
+						tmp_tx_ctx = np->tx_skb;
+				} while (tmp_tx_ctx != np->put_tx_ctx);
+				dev_kfree_skb_any(skb);
+				np->put_tx_ctx = start_tx_ctx;
+				u64_stats_update_begin(&np->swstats_tx_syncp);
+				nv_txrx_stats_inc(stat_tx_dropped);
+				u64_stats_update_end(&np->swstats_tx_syncp);
+
+				ret = NETDEV_TX_OK;
+
+				goto dma_error;
+			}
+
+			np->put_tx_ctx->dma_len = bcnt;
+			np->put_tx_ctx->dma_single = 0;
+			put_tx->buf = cpu_to_le32(np->put_tx_ctx->dma);
+			put_tx->flaglen = cpu_to_le32((bcnt-1) | tx_flags);
+
+			offset += bcnt;
+			frag_size -= bcnt;
+			if (unlikely(put_tx++ == np->last_tx.orig))
+				put_tx = np->tx_ring.orig;
+			if (unlikely(np->put_tx_ctx++ == np->last_tx_ctx))
+				np->put_tx_ctx = np->tx_skb;
+		} while (frag_size);
+	}
+
+	if (unlikely(put_tx == np->tx_ring.orig))
+		prev_tx = np->last_tx.orig;
+	else
+		prev_tx = put_tx - 1;
+
+	if (unlikely(np->put_tx_ctx == np->tx_skb))
+		prev_tx_ctx = np->last_tx_ctx;
+	else
+		prev_tx_ctx = np->put_tx_ctx - 1;
+
+	/* set last fragment flag  */
+	prev_tx->flaglen |= cpu_to_le32(tx_flags_extra);
+
+	/* save skb in this slot's context area */
+	prev_tx_ctx->skb = skb;
+
+	if (skb_is_gso(skb))
+		tx_flags_extra = NV_TX2_TSO | (skb_shinfo(skb)->gso_size << NV_TX2_TSO_SHIFT);
+	else
+		tx_flags_extra = skb->ip_summed == CHECKSUM_PARTIAL ?
+			 NV_TX2_CHECKSUM_L3 | NV_TX2_CHECKSUM_L4 : 0;
+
+	spin_lock_irqsave(&np->lock, flags);
+
+	/* set tx flags */
+	start_tx->flaglen |= cpu_to_le32(tx_flags | tx_flags_extra);
+
+	netdev_sent_queue(np->dev, skb->len);
+
+	skb_tx_timestamp(skb);
+
+	np->put_tx.orig = put_tx;
+
+	spin_unlock_irqrestore(&np->lock, flags);
+
+txkick:
+	if (netif_queue_stopped(dev) || !netdev_xmit_more()) {
+		u32 txrxctl_kick;
+dma_error:
+		txrxctl_kick = NVREG_TXRXCTL_KICK | np->txrxctl_bits;
+		writel(txrxctl_kick, get_hwbase(dev) + NvRegTxRxControl);
+	}
+
+	return ret;
+}
+
+static netdev_tx_t nv_start_xmit_optimized(struct sk_buff *skb,
+					   struct net_device *dev)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u32 tx_flags = 0;
+	u32 tx_flags_extra;
+	unsigned int fragments = skb_shinfo(skb)->nr_frags;
+	unsigned int i;
+	u32 offset = 0;
+	u32 bcnt;
+	u32 size = skb_headlen(skb);
+	u32 entries = (size >> NV_TX2_TSO_MAX_SHIFT) + ((size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0);
+	u32 empty_slots;
+	struct ring_desc_ex *put_tx;
+	struct ring_desc_ex *start_tx;
+	struct ring_desc_ex *prev_tx;
+	struct nv_skb_map *prev_tx_ctx;
+	struct nv_skb_map *start_tx_ctx = NULL;
+	struct nv_skb_map *tmp_tx_ctx = NULL;
+	unsigned long flags;
+	netdev_tx_t ret = NETDEV_TX_OK;
+
+	/* add fragments to entries count */
+	for (i = 0; i < fragments; i++) {
+		u32 frag_size = skb_frag_size(&skb_shinfo(skb)->frags[i]);
+
+		entries += (frag_size >> NV_TX2_TSO_MAX_SHIFT) +
+			   ((frag_size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0);
+	}
+
+	spin_lock_irqsave(&np->lock, flags);
+	empty_slots = nv_get_empty_tx_slots(np);
+	if (unlikely(empty_slots <= entries)) {
+		netif_stop_queue(dev);
+		np->tx_stop = 1;
+		spin_unlock_irqrestore(&np->lock, flags);
+
+		/* When normal packets and/or xmit_more packets fill up
+		 * tx_desc, it is necessary to trigger NIC tx reg.
+		 */
+		ret = NETDEV_TX_BUSY;
+
+		goto txkick;
+	}
+	spin_unlock_irqrestore(&np->lock, flags);
+
+	start_tx = put_tx = np->put_tx.ex;
+	start_tx_ctx = np->put_tx_ctx;
+
+	/* setup the header buffer */
+	do {
+		bcnt = (size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : size;
+		np->put_tx_ctx->dma = dma_map_single(&np->pci_dev->dev,
+						     skb->data + offset, bcnt,
+						     DMA_TO_DEVICE);
+		if (unlikely(dma_mapping_error(&np->pci_dev->dev,
+					       np->put_tx_ctx->dma))) {
+			/* on DMA mapping error - drop the packet */
+			dev_kfree_skb_any(skb);
+			u64_stats_update_begin(&np->swstats_tx_syncp);
+			nv_txrx_stats_inc(stat_tx_dropped);
+			u64_stats_update_end(&np->swstats_tx_syncp);
+
+			ret = NETDEV_TX_OK;
+
+			goto dma_error;
+		}
+		np->put_tx_ctx->dma_len = bcnt;
+		np->put_tx_ctx->dma_single = 1;
+		put_tx->bufhigh = cpu_to_le32(dma_high(np->put_tx_ctx->dma));
+		put_tx->buflow = cpu_to_le32(dma_low(np->put_tx_ctx->dma));
+		put_tx->flaglen = cpu_to_le32((bcnt-1) | tx_flags);
+
+		tx_flags = NV_TX2_VALID;
+		offset += bcnt;
+		size -= bcnt;
+		if (unlikely(put_tx++ == np->last_tx.ex))
+			put_tx = np->tx_ring.ex;
+		if (unlikely(np->put_tx_ctx++ == np->last_tx_ctx))
+			np->put_tx_ctx = np->tx_skb;
+	} while (size);
+
+	/* setup the fragments */
+	for (i = 0; i < fragments; i++) {
+		skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
+		u32 frag_size = skb_frag_size(frag);
+		offset = 0;
+
+		do {
+			bcnt = (frag_size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : frag_size;
+			if (!start_tx_ctx)
+				start_tx_ctx = tmp_tx_ctx = np->put_tx_ctx;
+			np->put_tx_ctx->dma = skb_frag_dma_map(
+							&np->pci_dev->dev,
+							frag, offset,
+							bcnt,
+							DMA_TO_DEVICE);
+
+			if (unlikely(dma_mapping_error(&np->pci_dev->dev,
+						       np->put_tx_ctx->dma))) {
+
+				/* Unwind the mapped fragments */
+				do {
+					nv_unmap_txskb(np, start_tx_ctx);
+					if (unlikely(tmp_tx_ctx++ == np->last_tx_ctx))
+						tmp_tx_ctx = np->tx_skb;
+				} while (tmp_tx_ctx != np->put_tx_ctx);
+				dev_kfree_skb_any(skb);
+				np->put_tx_ctx = start_tx_ctx;
+				u64_stats_update_begin(&np->swstats_tx_syncp);
+				nv_txrx_stats_inc(stat_tx_dropped);
+				u64_stats_update_end(&np->swstats_tx_syncp);
+
+				ret = NETDEV_TX_OK;
+
+				goto dma_error;
+			}
+			np->put_tx_ctx->dma_len = bcnt;
+			np->put_tx_ctx->dma_single = 0;
+			put_tx->bufhigh = cpu_to_le32(dma_high(np->put_tx_ctx->dma));
+			put_tx->buflow = cpu_to_le32(dma_low(np->put_tx_ctx->dma));
+			put_tx->flaglen = cpu_to_le32((bcnt-1) | tx_flags);
+
+			offset += bcnt;
+			frag_size -= bcnt;
+			if (unlikely(put_tx++ == np->last_tx.ex))
+				put_tx = np->tx_ring.ex;
+			if (unlikely(np->put_tx_ctx++ == np->last_tx_ctx))
+				np->put_tx_ctx = np->tx_skb;
+		} while (frag_size);
+	}
+
+	if (unlikely(put_tx == np->tx_ring.ex))
+		prev_tx = np->last_tx.ex;
+	else
+		prev_tx = put_tx - 1;
+
+	if (unlikely(np->put_tx_ctx == np->tx_skb))
+		prev_tx_ctx = np->last_tx_ctx;
+	else
+		prev_tx_ctx = np->put_tx_ctx - 1;
+
+	/* set last fragment flag  */
+	prev_tx->flaglen |= cpu_to_le32(NV_TX2_LASTPACKET);
+
+	/* save skb in this slot's context area */
+	prev_tx_ctx->skb = skb;
+
+	if (skb_is_gso(skb))
+		tx_flags_extra = NV_TX2_TSO | (skb_shinfo(skb)->gso_size << NV_TX2_TSO_SHIFT);
+	else
+		tx_flags_extra = skb->ip_summed == CHECKSUM_PARTIAL ?
+			 NV_TX2_CHECKSUM_L3 | NV_TX2_CHECKSUM_L4 : 0;
+
+	/* vlan tag */
+	if (skb_vlan_tag_present(skb))
+		start_tx->txvlan = cpu_to_le32(NV_TX3_VLAN_TAG_PRESENT |
+					skb_vlan_tag_get(skb));
+	else
+		start_tx->txvlan = 0;
+
+	spin_lock_irqsave(&np->lock, flags);
+
+	if (np->tx_limit) {
+		/* Limit the number of outstanding tx. Setup all fragments, but
+		 * do not set the VALID bit on the first descriptor. Save a pointer
+		 * to that descriptor and also for next skb_map element.
+		 */
+
+		if (np->tx_pkts_in_progress == NV_TX_LIMIT_COUNT) {
+			if (!np->tx_change_owner)
+				np->tx_change_owner = start_tx_ctx;
+
+			/* remove VALID bit */
+			tx_flags &= ~NV_TX2_VALID;
+			start_tx_ctx->first_tx_desc = start_tx;
+			start_tx_ctx->next_tx_ctx = np->put_tx_ctx;
+			np->tx_end_flip = np->put_tx_ctx;
+		} else {
+			np->tx_pkts_in_progress++;
+		}
+	}
+
+	/* set tx flags */
+	start_tx->flaglen |= cpu_to_le32(tx_flags | tx_flags_extra);
+
+	netdev_sent_queue(np->dev, skb->len);
+
+	skb_tx_timestamp(skb);
+
+	np->put_tx.ex = put_tx;
+
+	spin_unlock_irqrestore(&np->lock, flags);
+
+txkick:
+	if (netif_queue_stopped(dev) || !netdev_xmit_more()) {
+		u32 txrxctl_kick;
+dma_error:
+		txrxctl_kick = NVREG_TXRXCTL_KICK | np->txrxctl_bits;
+		writel(txrxctl_kick, get_hwbase(dev) + NvRegTxRxControl);
+	}
+
+	return ret;
+}
+
+static inline void nv_tx_flip_ownership(struct net_device *dev)
+{
+	struct fe_priv *np = netdev_priv(dev);
+
+	np->tx_pkts_in_progress--;
+	if (np->tx_change_owner) {
+		np->tx_change_owner->first_tx_desc->flaglen |=
+			cpu_to_le32(NV_TX2_VALID);
+		np->tx_pkts_in_progress++;
+
+		np->tx_change_owner = np->tx_change_owner->next_tx_ctx;
+		if (np->tx_change_owner == np->tx_end_flip)
+			np->tx_change_owner = NULL;
+
+		writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
+	}
+}
+
+/*
+ * nv_tx_done: check for completed packets, release the skbs.
+ *
+ * Caller must own np->lock.
+ */
+static int nv_tx_done(struct net_device *dev, int limit)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u32 flags;
+	int tx_work = 0;
+	struct ring_desc *orig_get_tx = np->get_tx.orig;
+	unsigned int bytes_compl = 0;
+
+	while ((np->get_tx.orig != np->put_tx.orig) &&
+	       !((flags = le32_to_cpu(np->get_tx.orig->flaglen)) & NV_TX_VALID) &&
+	       (tx_work < limit)) {
+
+		nv_unmap_txskb(np, np->get_tx_ctx);
+
+		if (np->desc_ver == DESC_VER_1) {
+			if (flags & NV_TX_LASTPACKET) {
+				if (unlikely(flags & NV_TX_ERROR)) {
+					if ((flags & NV_TX_RETRYERROR)
+					    && !(flags & NV_TX_RETRYCOUNT_MASK))
+						nv_legacybackoff_reseed(dev);
+				} else {
+					unsigned int len;
+
+					u64_stats_update_begin(&np->swstats_tx_syncp);
+					nv_txrx_stats_inc(stat_tx_packets);
+					len = np->get_tx_ctx->skb->len;
+					nv_txrx_stats_add(stat_tx_bytes, len);
+					u64_stats_update_end(&np->swstats_tx_syncp);
+				}
+				bytes_compl += np->get_tx_ctx->skb->len;
+				dev_kfree_skb_any(np->get_tx_ctx->skb);
+				np->get_tx_ctx->skb = NULL;
+				tx_work++;
+			}
+		} else {
+			if (flags & NV_TX2_LASTPACKET) {
+				if (unlikely(flags & NV_TX2_ERROR)) {
+					if ((flags & NV_TX2_RETRYERROR)
+					    && !(flags & NV_TX2_RETRYCOUNT_MASK))
+						nv_legacybackoff_reseed(dev);
+				} else {
+					unsigned int len;
+
+					u64_stats_update_begin(&np->swstats_tx_syncp);
+					nv_txrx_stats_inc(stat_tx_packets);
+					len = np->get_tx_ctx->skb->len;
+					nv_txrx_stats_add(stat_tx_bytes, len);
+					u64_stats_update_end(&np->swstats_tx_syncp);
+				}
+				bytes_compl += np->get_tx_ctx->skb->len;
+				dev_kfree_skb_any(np->get_tx_ctx->skb);
+				np->get_tx_ctx->skb = NULL;
+				tx_work++;
+			}
+		}
+		if (unlikely(np->get_tx.orig++ == np->last_tx.orig))
+			np->get_tx.orig = np->tx_ring.orig;
+		if (unlikely(np->get_tx_ctx++ == np->last_tx_ctx))
+			np->get_tx_ctx = np->tx_skb;
+	}
+
+	netdev_completed_queue(np->dev, tx_work, bytes_compl);
+
+	if (unlikely((np->tx_stop == 1) && (np->get_tx.orig != orig_get_tx))) {
+		np->tx_stop = 0;
+		netif_wake_queue(dev);
+	}
+	return tx_work;
+}
+
+static int nv_tx_done_optimized(struct net_device *dev, int limit)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u32 flags;
+	int tx_work = 0;
+	struct ring_desc_ex *orig_get_tx = np->get_tx.ex;
+	unsigned long bytes_cleaned = 0;
+
+	while ((np->get_tx.ex != np->put_tx.ex) &&
+	       !((flags = le32_to_cpu(np->get_tx.ex->flaglen)) & NV_TX2_VALID) &&
+	       (tx_work < limit)) {
+
+		nv_unmap_txskb(np, np->get_tx_ctx);
+
+		if (flags & NV_TX2_LASTPACKET) {
+			if (unlikely(flags & NV_TX2_ERROR)) {
+				if ((flags & NV_TX2_RETRYERROR)
+				    && !(flags & NV_TX2_RETRYCOUNT_MASK)) {
+					if (np->driver_data & DEV_HAS_GEAR_MODE)
+						nv_gear_backoff_reseed(dev);
+					else
+						nv_legacybackoff_reseed(dev);
+				}
+			} else {
+				unsigned int len;
+
+				u64_stats_update_begin(&np->swstats_tx_syncp);
+				nv_txrx_stats_inc(stat_tx_packets);
+				len = np->get_tx_ctx->skb->len;
+				nv_txrx_stats_add(stat_tx_bytes, len);
+				u64_stats_update_end(&np->swstats_tx_syncp);
+			}
+
+			bytes_cleaned += np->get_tx_ctx->skb->len;
+			dev_kfree_skb_any(np->get_tx_ctx->skb);
+			np->get_tx_ctx->skb = NULL;
+			tx_work++;
+
+			if (np->tx_limit)
+				nv_tx_flip_ownership(dev);
+		}
+
+		if (unlikely(np->get_tx.ex++ == np->last_tx.ex))
+			np->get_tx.ex = np->tx_ring.ex;
+		if (unlikely(np->get_tx_ctx++ == np->last_tx_ctx))
+			np->get_tx_ctx = np->tx_skb;
+	}
+
+	netdev_completed_queue(np->dev, tx_work, bytes_cleaned);
+
+	if (unlikely((np->tx_stop == 1) && (np->get_tx.ex != orig_get_tx))) {
+		np->tx_stop = 0;
+		netif_wake_queue(dev);
+	}
+	return tx_work;
+}
+
+/*
+ * nv_tx_timeout: dev->tx_timeout function
+ * Called with netif_tx_lock held.
+ */
+static void nv_tx_timeout(struct net_device *dev, unsigned int txqueue)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+	u32 status;
+	union ring_type put_tx;
+	int saved_tx_limit;
+
+	if (np->msi_flags & NV_MSI_X_ENABLED)
+		status = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQSTAT_MASK;
+	else
+		status = readl(base + NvRegIrqStatus) & NVREG_IRQSTAT_MASK;
+
+	netdev_warn(dev, "Got tx_timeout. irq status: %08x\n", status);
+
+	if (unlikely(debug_tx_timeout)) {
+		int i;
+
+		netdev_info(dev, "Ring at %lx\n", (unsigned long)np->ring_addr);
+		netdev_info(dev, "Dumping tx registers\n");
+		for (i = 0; i <= np->register_size; i += 32) {
+			netdev_info(dev,
+				    "%3x: %08x %08x %08x %08x "
+				    "%08x %08x %08x %08x\n",
+				    i,
+				    readl(base + i + 0), readl(base + i + 4),
+				    readl(base + i + 8), readl(base + i + 12),
+				    readl(base + i + 16), readl(base + i + 20),
+				    readl(base + i + 24), readl(base + i + 28));
+		}
+		netdev_info(dev, "Dumping tx ring\n");
+		for (i = 0; i < np->tx_ring_size; i += 4) {
+			if (!nv_optimized(np)) {
+				netdev_info(dev,
+					    "%03x: %08x %08x // %08x %08x "
+					    "// %08x %08x // %08x %08x\n",
+					    i,
+					    le32_to_cpu(np->tx_ring.orig[i].buf),
+					    le32_to_cpu(np->tx_ring.orig[i].flaglen),
+					    le32_to_cpu(np->tx_ring.orig[i+1].buf),
+					    le32_to_cpu(np->tx_ring.orig[i+1].flaglen),
+					    le32_to_cpu(np->tx_ring.orig[i+2].buf),
+					    le32_to_cpu(np->tx_ring.orig[i+2].flaglen),
+					    le32_to_cpu(np->tx_ring.orig[i+3].buf),
+					    le32_to_cpu(np->tx_ring.orig[i+3].flaglen));
+			} else {
+				netdev_info(dev,
+					    "%03x: %08x %08x %08x "
+					    "// %08x %08x %08x "
+					    "// %08x %08x %08x "
+					    "// %08x %08x %08x\n",
+					    i,
+					    le32_to_cpu(np->tx_ring.ex[i].bufhigh),
+					    le32_to_cpu(np->tx_ring.ex[i].buflow),
+					    le32_to_cpu(np->tx_ring.ex[i].flaglen),
+					    le32_to_cpu(np->tx_ring.ex[i+1].bufhigh),
+					    le32_to_cpu(np->tx_ring.ex[i+1].buflow),
+					    le32_to_cpu(np->tx_ring.ex[i+1].flaglen),
+					    le32_to_cpu(np->tx_ring.ex[i+2].bufhigh),
+					    le32_to_cpu(np->tx_ring.ex[i+2].buflow),
+					    le32_to_cpu(np->tx_ring.ex[i+2].flaglen),
+					    le32_to_cpu(np->tx_ring.ex[i+3].bufhigh),
+					    le32_to_cpu(np->tx_ring.ex[i+3].buflow),
+					    le32_to_cpu(np->tx_ring.ex[i+3].flaglen));
+			}
+		}
+	}
+
+	spin_lock_irq(&np->lock);
+
+	/* 1) stop tx engine */
+	nv_stop_tx(dev);
+
+	/* 2) complete any outstanding tx and do not give HW any limited tx pkts */
+	saved_tx_limit = np->tx_limit;
+	np->tx_limit = 0; /* prevent giving HW any limited pkts */
+	np->tx_stop = 0;  /* prevent waking tx queue */
+	if (!nv_optimized(np))
+		nv_tx_done(dev, np->tx_ring_size);
+	else
+		nv_tx_done_optimized(dev, np->tx_ring_size);
+
+	/* save current HW position */
+	if (np->tx_change_owner)
+		put_tx.ex = np->tx_change_owner->first_tx_desc;
+	else
+		put_tx = np->put_tx;
+
+	/* 3) clear all tx state */
+	nv_drain_tx(dev);
+	nv_init_tx(dev);
+
+	/* 4) restore state to current HW position */
+	np->get_tx = np->put_tx = put_tx;
+	np->tx_limit = saved_tx_limit;
+
+	/* 5) restart tx engine */
+	nv_start_tx(dev);
+	netif_wake_queue(dev);
+	spin_unlock_irq(&np->lock);
+}
+
+/*
+ * Called when the nic notices a mismatch between the actual data len on the
+ * wire and the len indicated in the 802 header
+ */
+static int nv_getlen(struct net_device *dev, void *packet, int datalen)
+{
+	int hdrlen;	/* length of the 802 header */
+	int protolen;	/* length as stored in the proto field */
+
+	/* 1) calculate len according to header */
+	if (((struct vlan_ethhdr *)packet)->h_vlan_proto == htons(ETH_P_8021Q)) {
+		protolen = ntohs(((struct vlan_ethhdr *)packet)->h_vlan_encapsulated_proto);
+		hdrlen = VLAN_HLEN;
+	} else {
+		protolen = ntohs(((struct ethhdr *)packet)->h_proto);
+		hdrlen = ETH_HLEN;
+	}
+	if (protolen > ETH_DATA_LEN)
+		return datalen; /* Value in proto field not a len, no checks possible */
+
+	protolen += hdrlen;
+	/* consistency checks: */
+	if (datalen > ETH_ZLEN) {
+		if (datalen >= protolen) {
+			/* more data on wire than in 802 header, trim of
+			 * additional data.
+			 */
+			return protolen;
+		} else {
+			/* less data on wire than mentioned in header.
+			 * Discard the packet.
+			 */
+			return -1;
+		}
+	} else {
+		/* short packet. Accept only if 802 values are also short */
+		if (protolen > ETH_ZLEN) {
+			return -1;
+		}
+		return datalen;
+	}
+}
+
+static void rx_missing_handler(u32 flags, struct fe_priv *np)
+{
+	if (flags & NV_RX_MISSEDFRAME) {
+		u64_stats_update_begin(&np->swstats_rx_syncp);
+		nv_txrx_stats_inc(stat_rx_missed_errors);
+		u64_stats_update_end(&np->swstats_rx_syncp);
+	}
+}
+
+static int nv_rx_process(struct net_device *dev, int limit)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u32 flags;
+	int rx_work = 0;
+	struct sk_buff *skb;
+	int len;
+
+	while ((np->get_rx.orig != np->put_rx.orig) &&
+	      !((flags = le32_to_cpu(np->get_rx.orig->flaglen)) & NV_RX_AVAIL) &&
+		(rx_work < limit)) {
+
+		/*
+		 * the packet is for us - immediately tear down the pci mapping.
+		 * TODO: check if a prefetch of the first cacheline improves
+		 * the performance.
+		 */
+		dma_unmap_single(&np->pci_dev->dev, np->get_rx_ctx->dma,
+				 np->get_rx_ctx->dma_len,
+				 DMA_FROM_DEVICE);
+		skb = np->get_rx_ctx->skb;
+		np->get_rx_ctx->skb = NULL;
+
+		/* look at what we actually got: */
+		if (np->desc_ver == DESC_VER_1) {
+			if (likely(flags & NV_RX_DESCRIPTORVALID)) {
+				len = flags & LEN_MASK_V1;
+				if (unlikely(flags & NV_RX_ERROR)) {
+					if ((flags & NV_RX_ERROR_MASK) == NV_RX_ERROR4) {
+						len = nv_getlen(dev, skb->data, len);
+						if (len < 0) {
+							dev_kfree_skb(skb);
+							goto next_pkt;
+						}
+					}
+					/* framing errors are soft errors */
+					else if ((flags & NV_RX_ERROR_MASK) == NV_RX_FRAMINGERR) {
+						if (flags & NV_RX_SUBTRACT1)
+							len--;
+					}
+					/* the rest are hard errors */
+					else {
+						rx_missing_handler(flags, np);
+						dev_kfree_skb(skb);
+						goto next_pkt;
+					}
+				}
+			} else {
+				dev_kfree_skb(skb);
+				goto next_pkt;
+			}
+		} else {
+			if (likely(flags & NV_RX2_DESCRIPTORVALID)) {
+				len = flags & LEN_MASK_V2;
+				if (unlikely(flags & NV_RX2_ERROR)) {
+					if ((flags & NV_RX2_ERROR_MASK) == NV_RX2_ERROR4) {
+						len = nv_getlen(dev, skb->data, len);
+						if (len < 0) {
+							dev_kfree_skb(skb);
+							goto next_pkt;
+						}
+					}
+					/* framing errors are soft errors */
+					else if ((flags & NV_RX2_ERROR_MASK) == NV_RX2_FRAMINGERR) {
+						if (flags & NV_RX2_SUBTRACT1)
+							len--;
+					}
+					/* the rest are hard errors */
+					else {
+						dev_kfree_skb(skb);
+						goto next_pkt;
+					}
+				}
+				if (((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUM_IP_TCP) || /*ip and tcp */
+				    ((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUM_IP_UDP))   /*ip and udp */
+					skb->ip_summed = CHECKSUM_UNNECESSARY;
+			} else {
+				dev_kfree_skb(skb);
+				goto next_pkt;
+			}
+		}
+		/* got a valid packet - forward it to the network core */
+		skb_put(skb, len);
+		skb->protocol = eth_type_trans(skb, dev);
+		napi_gro_receive(&np->napi, skb);
+		u64_stats_update_begin(&np->swstats_rx_syncp);
+		nv_txrx_stats_inc(stat_rx_packets);
+		nv_txrx_stats_add(stat_rx_bytes, len);
+		u64_stats_update_end(&np->swstats_rx_syncp);
+next_pkt:
+		if (unlikely(np->get_rx.orig++ == np->last_rx.orig))
+			np->get_rx.orig = np->rx_ring.orig;
+		if (unlikely(np->get_rx_ctx++ == np->last_rx_ctx))
+			np->get_rx_ctx = np->rx_skb;
+
+		rx_work++;
+	}
+
+	return rx_work;
+}
+
+static int nv_rx_process_optimized(struct net_device *dev, int limit)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u32 flags;
+	u32 vlanflags = 0;
+	int rx_work = 0;
+	struct sk_buff *skb;
+	int len;
+
+	while ((np->get_rx.ex != np->put_rx.ex) &&
+	      !((flags = le32_to_cpu(np->get_rx.ex->flaglen)) & NV_RX2_AVAIL) &&
+	      (rx_work < limit)) {
+
+		/*
+		 * the packet is for us - immediately tear down the pci mapping.
+		 * TODO: check if a prefetch of the first cacheline improves
+		 * the performance.
+		 */
+		dma_unmap_single(&np->pci_dev->dev, np->get_rx_ctx->dma,
+				 np->get_rx_ctx->dma_len,
+				 DMA_FROM_DEVICE);
+		skb = np->get_rx_ctx->skb;
+		np->get_rx_ctx->skb = NULL;
+
+		/* look at what we actually got: */
+		if (likely(flags & NV_RX2_DESCRIPTORVALID)) {
+			len = flags & LEN_MASK_V2;
+			if (unlikely(flags & NV_RX2_ERROR)) {
+				if ((flags & NV_RX2_ERROR_MASK) == NV_RX2_ERROR4) {
+					len = nv_getlen(dev, skb->data, len);
+					if (len < 0) {
+						dev_kfree_skb(skb);
+						goto next_pkt;
+					}
+				}
+				/* framing errors are soft errors */
+				else if ((flags & NV_RX2_ERROR_MASK) == NV_RX2_FRAMINGERR) {
+					if (flags & NV_RX2_SUBTRACT1)
+						len--;
+				}
+				/* the rest are hard errors */
+				else {
+					dev_kfree_skb(skb);
+					goto next_pkt;
+				}
+			}
+
+			if (((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUM_IP_TCP) || /*ip and tcp */
+			    ((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUM_IP_UDP))   /*ip and udp */
+				skb->ip_summed = CHECKSUM_UNNECESSARY;
+
+			/* got a valid packet - forward it to the network core */
+			skb_put(skb, len);
+			skb->protocol = eth_type_trans(skb, dev);
+			prefetch(skb->data);
+
+			vlanflags = le32_to_cpu(np->get_rx.ex->buflow);
+
+			/*
+			 * There's need to check for NETIF_F_HW_VLAN_CTAG_RX
+			 * here. Even if vlan rx accel is disabled,
+			 * NV_RX3_VLAN_TAG_PRESENT is pseudo randomly set.
+			 */
+			if (dev->features & NETIF_F_HW_VLAN_CTAG_RX &&
+			    vlanflags & NV_RX3_VLAN_TAG_PRESENT) {
+				u16 vid = vlanflags & NV_RX3_VLAN_TAG_MASK;
+
+				__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vid);
+			}
+			napi_gro_receive(&np->napi, skb);
+			u64_stats_update_begin(&np->swstats_rx_syncp);
+			nv_txrx_stats_inc(stat_rx_packets);
+			nv_txrx_stats_add(stat_rx_bytes, len);
+			u64_stats_update_end(&np->swstats_rx_syncp);
+		} else {
+			dev_kfree_skb(skb);
+		}
+next_pkt:
+		if (unlikely(np->get_rx.ex++ == np->last_rx.ex))
+			np->get_rx.ex = np->rx_ring.ex;
+		if (unlikely(np->get_rx_ctx++ == np->last_rx_ctx))
+			np->get_rx_ctx = np->rx_skb;
+
+		rx_work++;
+	}
+
+	return rx_work;
+}
+
+static void set_bufsize(struct net_device *dev)
+{
+	struct fe_priv *np = netdev_priv(dev);
+
+	if (dev->mtu <= ETH_DATA_LEN)
+		np->rx_buf_sz = ETH_DATA_LEN + NV_RX_HEADERS;
+	else
+		np->rx_buf_sz = dev->mtu + NV_RX_HEADERS;
+}
+
+/*
+ * nv_change_mtu: dev->change_mtu function
+ * Called with dev_base_lock held for read.
+ */
+static int nv_change_mtu(struct net_device *dev, int new_mtu)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	int old_mtu;
+
+	old_mtu = dev->mtu;
+	dev->mtu = new_mtu;
+
+	/* return early if the buffer sizes will not change */
+	if (old_mtu <= ETH_DATA_LEN && new_mtu <= ETH_DATA_LEN)
+		return 0;
+
+	/* synchronized against open : rtnl_lock() held by caller */
+	if (netif_running(dev)) {
+		u8 __iomem *base = get_hwbase(dev);
+		/*
+		 * It seems that the nic preloads valid ring entries into an
+		 * internal buffer. The procedure for flushing everything is
+		 * guessed, there is probably a simpler approach.
+		 * Changing the MTU is a rare event, it shouldn't matter.
+		 */
+		nv_disable_irq(dev);
+		nv_napi_disable(dev);
+		netif_tx_lock_bh(dev);
+		netif_addr_lock(dev);
+		spin_lock(&np->lock);
+		/* stop engines */
+		nv_stop_rxtx(dev);
+		nv_txrx_reset(dev);
+		/* drain rx queue */
+		nv_drain_rxtx(dev);
+		/* reinit driver view of the rx queue */
+		set_bufsize(dev);
+		if (nv_init_ring(dev)) {
+			if (!np->in_shutdown)
+				mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
+		}
+		/* reinit nic view of the rx queue */
+		writel(np->rx_buf_sz, base + NvRegOffloadConfig);
+		setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING);
+		writel(((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT),
+			base + NvRegRingSizes);
+		pci_push(base);
+		writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
+		pci_push(base);
+
+		/* restart rx engine */
+		nv_start_rxtx(dev);
+		spin_unlock(&np->lock);
+		netif_addr_unlock(dev);
+		netif_tx_unlock_bh(dev);
+		nv_napi_enable(dev);
+		nv_enable_irq(dev);
+	}
+	return 0;
+}
+
+static void nv_copy_mac_to_hw(struct net_device *dev)
+{
+	u8 __iomem *base = get_hwbase(dev);
+	u32 mac[2];
+
+	mac[0] = (dev->dev_addr[0] << 0) + (dev->dev_addr[1] << 8) +
+			(dev->dev_addr[2] << 16) + (dev->dev_addr[3] << 24);
+	mac[1] = (dev->dev_addr[4] << 0) + (dev->dev_addr[5] << 8);
+
+	writel(mac[0], base + NvRegMacAddrA);
+	writel(mac[1], base + NvRegMacAddrB);
+}
+
+/*
+ * nv_set_mac_address: dev->set_mac_address function
+ * Called with rtnl_lock() held.
+ */
+static int nv_set_mac_address(struct net_device *dev, void *addr)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	struct sockaddr *macaddr = (struct sockaddr *)addr;
+
+	if (!is_valid_ether_addr(macaddr->sa_data))
+		return -EADDRNOTAVAIL;
+
+	/* synchronized against open : rtnl_lock() held by caller */
+	memcpy(dev->dev_addr, macaddr->sa_data, ETH_ALEN);
+
+	if (netif_running(dev)) {
+		netif_tx_lock_bh(dev);
+		netif_addr_lock(dev);
+		spin_lock_irq(&np->lock);
+
+		/* stop rx engine */
+		nv_stop_rx(dev);
+
+		/* set mac address */
+		nv_copy_mac_to_hw(dev);
+
+		/* restart rx engine */
+		nv_start_rx(dev);
+		spin_unlock_irq(&np->lock);
+		netif_addr_unlock(dev);
+		netif_tx_unlock_bh(dev);
+	} else {
+		nv_copy_mac_to_hw(dev);
+	}
+	return 0;
+}
+
+/*
+ * nv_set_multicast: dev->set_multicast function
+ * Called with netif_tx_lock held.
+ */
+static void nv_set_multicast(struct net_device *dev)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+	u32 addr[2];
+	u32 mask[2];
+	u32 pff = readl(base + NvRegPacketFilterFlags) & NVREG_PFF_PAUSE_RX;
+
+	memset(addr, 0, sizeof(addr));
+	memset(mask, 0, sizeof(mask));
+
+	if (dev->flags & IFF_PROMISC) {
+		pff |= NVREG_PFF_PROMISC;
+	} else {
+		pff |= NVREG_PFF_MYADDR;
+
+		if (dev->flags & IFF_ALLMULTI || !netdev_mc_empty(dev)) {
+			u32 alwaysOff[2];
+			u32 alwaysOn[2];
+
+			alwaysOn[0] = alwaysOn[1] = alwaysOff[0] = alwaysOff[1] = 0xffffffff;
+			if (dev->flags & IFF_ALLMULTI) {
+				alwaysOn[0] = alwaysOn[1] = alwaysOff[0] = alwaysOff[1] = 0;
+			} else {
+				struct netdev_hw_addr *ha;
+
+				netdev_for_each_mc_addr(ha, dev) {
+					unsigned char *hw_addr = ha->addr;
+					u32 a, b;
+
+					a = le32_to_cpu(*(__le32 *) hw_addr);
+					b = le16_to_cpu(*(__le16 *) (&hw_addr[4]));
+					alwaysOn[0] &= a;
+					alwaysOff[0] &= ~a;
+					alwaysOn[1] &= b;
+					alwaysOff[1] &= ~b;
+				}
+			}
+			addr[0] = alwaysOn[0];
+			addr[1] = alwaysOn[1];
+			mask[0] = alwaysOn[0] | alwaysOff[0];
+			mask[1] = alwaysOn[1] | alwaysOff[1];
+		} else {
+			mask[0] = NVREG_MCASTMASKA_NONE;
+			mask[1] = NVREG_MCASTMASKB_NONE;
+		}
+	}
+	addr[0] |= NVREG_MCASTADDRA_FORCE;
+	pff |= NVREG_PFF_ALWAYS;
+	spin_lock_irq(&np->lock);
+	nv_stop_rx(dev);
+	writel(addr[0], base + NvRegMulticastAddrA);
+	writel(addr[1], base + NvRegMulticastAddrB);
+	writel(mask[0], base + NvRegMulticastMaskA);
+	writel(mask[1], base + NvRegMulticastMaskB);
+	writel(pff, base + NvRegPacketFilterFlags);
+	nv_start_rx(dev);
+	spin_unlock_irq(&np->lock);
+}
+
+static void nv_update_pause(struct net_device *dev, u32 pause_flags)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+
+	np->pause_flags &= ~(NV_PAUSEFRAME_TX_ENABLE | NV_PAUSEFRAME_RX_ENABLE);
+
+	if (np->pause_flags & NV_PAUSEFRAME_RX_CAPABLE) {
+		u32 pff = readl(base + NvRegPacketFilterFlags) & ~NVREG_PFF_PAUSE_RX;
+		if (pause_flags & NV_PAUSEFRAME_RX_ENABLE) {
+			writel(pff|NVREG_PFF_PAUSE_RX, base + NvRegPacketFilterFlags);
+			np->pause_flags |= NV_PAUSEFRAME_RX_ENABLE;
+		} else {
+			writel(pff, base + NvRegPacketFilterFlags);
+		}
+	}
+	if (np->pause_flags & NV_PAUSEFRAME_TX_CAPABLE) {
+		u32 regmisc = readl(base + NvRegMisc1) & ~NVREG_MISC1_PAUSE_TX;
+		if (pause_flags & NV_PAUSEFRAME_TX_ENABLE) {
+			u32 pause_enable = NVREG_TX_PAUSEFRAME_ENABLE_V1;
+			if (np->driver_data & DEV_HAS_PAUSEFRAME_TX_V2)
+				pause_enable = NVREG_TX_PAUSEFRAME_ENABLE_V2;
+			if (np->driver_data & DEV_HAS_PAUSEFRAME_TX_V3) {
+				pause_enable = NVREG_TX_PAUSEFRAME_ENABLE_V3;
+				/* limit the number of tx pause frames to a default of 8 */
+				writel(readl(base + NvRegTxPauseFrameLimit)|NVREG_TX_PAUSEFRAMELIMIT_ENABLE, base + NvRegTxPauseFrameLimit);
+			}
+			writel(pause_enable,  base + NvRegTxPauseFrame);
+			writel(regmisc|NVREG_MISC1_PAUSE_TX, base + NvRegMisc1);
+			np->pause_flags |= NV_PAUSEFRAME_TX_ENABLE;
+		} else {
+			writel(NVREG_TX_PAUSEFRAME_DISABLE,  base + NvRegTxPauseFrame);
+			writel(regmisc, base + NvRegMisc1);
+		}
+	}
+}
+
+static void nv_force_linkspeed(struct net_device *dev, int speed, int duplex)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+	u32 phyreg, txreg;
+	int mii_status;
+
+	np->linkspeed = NVREG_LINKSPEED_FORCE|speed;
+	np->duplex = duplex;
+
+	/* see if gigabit phy */
+	mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
+	if (mii_status & PHY_GIGABIT) {
+		np->gigabit = PHY_GIGABIT;
+		phyreg = readl(base + NvRegSlotTime);
+		phyreg &= ~(0x3FF00);
+		if ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_10)
+			phyreg |= NVREG_SLOTTIME_10_100_FULL;
+		else if ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_100)
+			phyreg |= NVREG_SLOTTIME_10_100_FULL;
+		else if ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_1000)
+			phyreg |= NVREG_SLOTTIME_1000_FULL;
+		writel(phyreg, base + NvRegSlotTime);
+	}
+
+	phyreg = readl(base + NvRegPhyInterface);
+	phyreg &= ~(PHY_HALF|PHY_100|PHY_1000);
+	if (np->duplex == 0)
+		phyreg |= PHY_HALF;
+	if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_100)
+		phyreg |= PHY_100;
+	else if ((np->linkspeed & NVREG_LINKSPEED_MASK) ==
+							NVREG_LINKSPEED_1000)
+		phyreg |= PHY_1000;
+	writel(phyreg, base + NvRegPhyInterface);
+
+	if (phyreg & PHY_RGMII) {
+		if ((np->linkspeed & NVREG_LINKSPEED_MASK) ==
+							NVREG_LINKSPEED_1000)
+			txreg = NVREG_TX_DEFERRAL_RGMII_1000;
+		else
+			txreg = NVREG_TX_DEFERRAL_RGMII_10_100;
+	} else {
+		txreg = NVREG_TX_DEFERRAL_DEFAULT;
+	}
+	writel(txreg, base + NvRegTxDeferral);
+
+	if (np->desc_ver == DESC_VER_1) {
+		txreg = NVREG_TX_WM_DESC1_DEFAULT;
+	} else {
+		if ((np->linkspeed & NVREG_LINKSPEED_MASK) ==
+					 NVREG_LINKSPEED_1000)
+			txreg = NVREG_TX_WM_DESC2_3_1000;
+		else
+			txreg = NVREG_TX_WM_DESC2_3_DEFAULT;
+	}
+	writel(txreg, base + NvRegTxWatermark);
+
+	writel(NVREG_MISC1_FORCE | (np->duplex ? 0 : NVREG_MISC1_HD),
+			base + NvRegMisc1);
+	pci_push(base);
+	writel(np->linkspeed, base + NvRegLinkSpeed);
+	pci_push(base);
+}
+
+/**
+ * nv_update_linkspeed - Setup the MAC according to the link partner
+ * @dev: Network device to be configured
+ *
+ * The function queries the PHY and checks if there is a link partner.
+ * If yes, then it sets up the MAC accordingly. Otherwise, the MAC is
+ * set to 10 MBit HD.
+ *
+ * The function returns 0 if there is no link partner and 1 if there is
+ * a good link partner.
+ */
+static int nv_update_linkspeed(struct net_device *dev)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+	int adv = 0;
+	int lpa = 0;
+	int adv_lpa, adv_pause, lpa_pause;
+	int newls = np->linkspeed;
+	int newdup = np->duplex;
+	int mii_status;
+	u32 bmcr;
+	int retval = 0;
+	u32 control_1000, status_1000, phyreg, pause_flags, txreg;
+	u32 txrxFlags = 0;
+	u32 phy_exp;
+
+	/* If device loopback is enabled, set carrier on and enable max link
+	 * speed.
+	 */
+	bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
+	if (bmcr & BMCR_LOOPBACK) {
+		if (netif_running(dev)) {
+			nv_force_linkspeed(dev, NVREG_LINKSPEED_1000, 1);
+			if (!netif_carrier_ok(dev))
+				netif_carrier_on(dev);
+		}
+		return 1;
+	}
+
+	/* BMSR_LSTATUS is latched, read it twice:
+	 * we want the current value.
+	 */
+	mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
+	mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
+
+	if (!(mii_status & BMSR_LSTATUS)) {
+		newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
+		newdup = 0;
+		retval = 0;
+		goto set_speed;
+	}
+
+	if (np->autoneg == 0) {
+		if (np->fixed_mode & LPA_100FULL) {
+			newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100;
+			newdup = 1;
+		} else if (np->fixed_mode & LPA_100HALF) {
+			newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100;
+			newdup = 0;
+		} else if (np->fixed_mode & LPA_10FULL) {
+			newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
+			newdup = 1;
+		} else {
+			newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
+			newdup = 0;
+		}
+		retval = 1;
+		goto set_speed;
+	}
+	/* check auto negotiation is complete */
+	if (!(mii_status & BMSR_ANEGCOMPLETE)) {
+		/* still in autonegotiation - configure nic for 10 MBit HD and wait. */
+		newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
+		newdup = 0;
+		retval = 0;
+		goto set_speed;
+	}
+
+	adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
+	lpa = mii_rw(dev, np->phyaddr, MII_LPA, MII_READ);
+
+	retval = 1;
+	if (np->gigabit == PHY_GIGABIT) {
+		control_1000 = mii_rw(dev, np->phyaddr, MII_CTRL1000, MII_READ);
+		status_1000 = mii_rw(dev, np->phyaddr, MII_STAT1000, MII_READ);
+
+		if ((control_1000 & ADVERTISE_1000FULL) &&
+			(status_1000 & LPA_1000FULL)) {
+			newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_1000;
+			newdup = 1;
+			goto set_speed;
+		}
+	}
+
+	/* FIXME: handle parallel detection properly */
+	adv_lpa = lpa & adv;
+	if (adv_lpa & LPA_100FULL) {
+		newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100;
+		newdup = 1;
+	} else if (adv_lpa & LPA_100HALF) {
+		newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100;
+		newdup = 0;
+	} else if (adv_lpa & LPA_10FULL) {
+		newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
+		newdup = 1;
+	} else if (adv_lpa & LPA_10HALF) {
+		newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
+		newdup = 0;
+	} else {
+		newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
+		newdup = 0;
+	}
+
+set_speed:
+	if (np->duplex == newdup && np->linkspeed == newls)
+		return retval;
+
+	np->duplex = newdup;
+	np->linkspeed = newls;
+
+	/* The transmitter and receiver must be restarted for safe update */
+	if (readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_START) {
+		txrxFlags |= NV_RESTART_TX;
+		nv_stop_tx(dev);
+	}
+	if (readl(base + NvRegReceiverControl) & NVREG_RCVCTL_START) {
+		txrxFlags |= NV_RESTART_RX;
+		nv_stop_rx(dev);
+	}
+
+	if (np->gigabit == PHY_GIGABIT) {
+		phyreg = readl(base + NvRegSlotTime);
+		phyreg &= ~(0x3FF00);
+		if (((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_10) ||
+		    ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_100))
+			phyreg |= NVREG_SLOTTIME_10_100_FULL;
+		else if ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_1000)
+			phyreg |= NVREG_SLOTTIME_1000_FULL;
+		writel(phyreg, base + NvRegSlotTime);
+	}
+
+	phyreg = readl(base + NvRegPhyInterface);
+	phyreg &= ~(PHY_HALF|PHY_100|PHY_1000);
+	if (np->duplex == 0)
+		phyreg |= PHY_HALF;
+	if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_100)
+		phyreg |= PHY_100;
+	else if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_1000)
+		phyreg |= PHY_1000;
+	writel(phyreg, base + NvRegPhyInterface);
+
+	phy_exp = mii_rw(dev, np->phyaddr, MII_EXPANSION, MII_READ) & EXPANSION_NWAY; /* autoneg capable */
+	if (phyreg & PHY_RGMII) {
+		if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_1000) {
+			txreg = NVREG_TX_DEFERRAL_RGMII_1000;
+		} else {
+			if (!phy_exp && !np->duplex && (np->driver_data & DEV_HAS_COLLISION_FIX)) {
+				if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_10)
+					txreg = NVREG_TX_DEFERRAL_RGMII_STRETCH_10;
+				else
+					txreg = NVREG_TX_DEFERRAL_RGMII_STRETCH_100;
+			} else {
+				txreg = NVREG_TX_DEFERRAL_RGMII_10_100;
+			}
+		}
+	} else {
+		if (!phy_exp && !np->duplex && (np->driver_data & DEV_HAS_COLLISION_FIX))
+			txreg = NVREG_TX_DEFERRAL_MII_STRETCH;
+		else
+			txreg = NVREG_TX_DEFERRAL_DEFAULT;
+	}
+	writel(txreg, base + NvRegTxDeferral);
+
+	if (np->desc_ver == DESC_VER_1) {
+		txreg = NVREG_TX_WM_DESC1_DEFAULT;
+	} else {
+		if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_1000)
+			txreg = NVREG_TX_WM_DESC2_3_1000;
+		else
+			txreg = NVREG_TX_WM_DESC2_3_DEFAULT;
+	}
+	writel(txreg, base + NvRegTxWatermark);
+
+	writel(NVREG_MISC1_FORCE | (np->duplex ? 0 : NVREG_MISC1_HD),
+		base + NvRegMisc1);
+	pci_push(base);
+	writel(np->linkspeed, base + NvRegLinkSpeed);
+	pci_push(base);
+
+	pause_flags = 0;
+	/* setup pause frame */
+	if (netif_running(dev) && (np->duplex != 0)) {
+		if (np->autoneg && np->pause_flags & NV_PAUSEFRAME_AUTONEG) {
+			adv_pause = adv & (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
+			lpa_pause = lpa & (LPA_PAUSE_CAP | LPA_PAUSE_ASYM);
+
+			switch (adv_pause) {
+			case ADVERTISE_PAUSE_CAP:
+				if (lpa_pause & LPA_PAUSE_CAP) {
+					pause_flags |= NV_PAUSEFRAME_RX_ENABLE;
+					if (np->pause_flags & NV_PAUSEFRAME_TX_REQ)
+						pause_flags |= NV_PAUSEFRAME_TX_ENABLE;
+				}
+				break;
+			case ADVERTISE_PAUSE_ASYM:
+				if (lpa_pause == (LPA_PAUSE_CAP | LPA_PAUSE_ASYM))
+					pause_flags |= NV_PAUSEFRAME_TX_ENABLE;
+				break;
+			case ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM:
+				if (lpa_pause & LPA_PAUSE_CAP) {
+					pause_flags |=  NV_PAUSEFRAME_RX_ENABLE;
+					if (np->pause_flags & NV_PAUSEFRAME_TX_REQ)
+						pause_flags |= NV_PAUSEFRAME_TX_ENABLE;
+				}
+				if (lpa_pause == LPA_PAUSE_ASYM)
+					pause_flags |= NV_PAUSEFRAME_RX_ENABLE;
+				break;
+			}
+		} else {
+			pause_flags = np->pause_flags;
+		}
+	}
+	nv_update_pause(dev, pause_flags);
+
+	if (txrxFlags & NV_RESTART_TX)
+		nv_start_tx(dev);
+	if (txrxFlags & NV_RESTART_RX)
+		nv_start_rx(dev);
+
+	return retval;
+}
+
+static void nv_linkchange(struct net_device *dev)
+{
+	if (nv_update_linkspeed(dev)) {
+		if (!netif_carrier_ok(dev)) {
+			netif_carrier_on(dev);
+			netdev_info(dev, "link up\n");
+			nv_txrx_gate(dev, false);
+			nv_start_rx(dev);
+		}
+	} else {
+		if (netif_carrier_ok(dev)) {
+			netif_carrier_off(dev);
+			netdev_info(dev, "link down\n");
+			nv_txrx_gate(dev, true);
+			nv_stop_rx(dev);
+		}
+	}
+}
+
+static void nv_link_irq(struct net_device *dev)
+{
+	u8 __iomem *base = get_hwbase(dev);
+	u32 miistat;
+
+	miistat = readl(base + NvRegMIIStatus);
+	writel(NVREG_MIISTAT_LINKCHANGE, base + NvRegMIIStatus);
+
+	if (miistat & (NVREG_MIISTAT_LINKCHANGE))
+		nv_linkchange(dev);
+}
+
+static void nv_msi_workaround(struct fe_priv *np)
+{
+
+	/* Need to toggle the msi irq mask within the ethernet device,
+	 * otherwise, future interrupts will not be detected.
+	 */
+	if (np->msi_flags & NV_MSI_ENABLED) {
+		u8 __iomem *base = np->base;
+
+		writel(0, base + NvRegMSIIrqMask);
+		writel(NVREG_MSI_VECTOR_0_ENABLED, base + NvRegMSIIrqMask);
+	}
+}
+
+static inline int nv_change_interrupt_mode(struct net_device *dev, int total_work)
+{
+	struct fe_priv *np = netdev_priv(dev);
+
+	if (optimization_mode == NV_OPTIMIZATION_MODE_DYNAMIC) {
+		if (total_work > NV_DYNAMIC_THRESHOLD) {
+			/* transition to poll based interrupts */
+			np->quiet_count = 0;
+			if (np->irqmask != NVREG_IRQMASK_CPU) {
+				np->irqmask = NVREG_IRQMASK_CPU;
+				return 1;
+			}
+		} else {
+			if (np->quiet_count < NV_DYNAMIC_MAX_QUIET_COUNT) {
+				np->quiet_count++;
+			} else {
+				/* reached a period of low activity, switch
+				   to per tx/rx packet interrupts */
+				if (np->irqmask != NVREG_IRQMASK_THROUGHPUT) {
+					np->irqmask = NVREG_IRQMASK_THROUGHPUT;
+					return 1;
+				}
+			}
+		}
+	}
+	return 0;
+}
+
+static irqreturn_t nv_nic_irq(int foo, void *data)
+{
+	struct net_device *dev = (struct net_device *) data;
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+
+	if (!(np->msi_flags & NV_MSI_X_ENABLED)) {
+		np->events = readl(base + NvRegIrqStatus);
+		writel(np->events, base + NvRegIrqStatus);
+	} else {
+		np->events = readl(base + NvRegMSIXIrqStatus);
+		writel(np->events, base + NvRegMSIXIrqStatus);
+	}
+	if (!(np->events & np->irqmask))
+		return IRQ_NONE;
+
+	nv_msi_workaround(np);
+
+	if (napi_schedule_prep(&np->napi)) {
+		/*
+		 * Disable further irq's (msix not enabled with napi)
+		 */
+		writel(0, base + NvRegIrqMask);
+		__napi_schedule(&np->napi);
+	}
+
+	return IRQ_HANDLED;
+}
+
+/* All _optimized functions are used to help increase performance
+ * (reduce CPU and increase throughput). They use descripter version 3,
+ * compiler directives, and reduce memory accesses.
+ */
+static irqreturn_t nv_nic_irq_optimized(int foo, void *data)
+{
+	struct net_device *dev = (struct net_device *) data;
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+
+	if (!(np->msi_flags & NV_MSI_X_ENABLED)) {
+		np->events = readl(base + NvRegIrqStatus);
+		writel(np->events, base + NvRegIrqStatus);
+	} else {
+		np->events = readl(base + NvRegMSIXIrqStatus);
+		writel(np->events, base + NvRegMSIXIrqStatus);
+	}
+	if (!(np->events & np->irqmask))
+		return IRQ_NONE;
+
+	nv_msi_workaround(np);
+
+	if (napi_schedule_prep(&np->napi)) {
+		/*
+		 * Disable further irq's (msix not enabled with napi)
+		 */
+		writel(0, base + NvRegIrqMask);
+		__napi_schedule(&np->napi);
+	}
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t nv_nic_irq_tx(int foo, void *data)
+{
+	struct net_device *dev = (struct net_device *) data;
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+	u32 events;
+	int i;
+	unsigned long flags;
+
+	for (i = 0;; i++) {
+		events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQ_TX_ALL;
+		writel(events, base + NvRegMSIXIrqStatus);
+		netdev_dbg(dev, "tx irq events: %08x\n", events);
+		if (!(events & np->irqmask))
+			break;
+
+		spin_lock_irqsave(&np->lock, flags);
+		nv_tx_done_optimized(dev, TX_WORK_PER_LOOP);
+		spin_unlock_irqrestore(&np->lock, flags);
+
+		if (unlikely(i > max_interrupt_work)) {
+			spin_lock_irqsave(&np->lock, flags);
+			/* disable interrupts on the nic */
+			writel(NVREG_IRQ_TX_ALL, base + NvRegIrqMask);
+			pci_push(base);
+
+			if (!np->in_shutdown) {
+				np->nic_poll_irq |= NVREG_IRQ_TX_ALL;
+				mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
+			}
+			spin_unlock_irqrestore(&np->lock, flags);
+			netdev_dbg(dev, "%s: too many iterations (%d)\n",
+				   __func__, i);
+			break;
+		}
+
+	}
+
+	return IRQ_RETVAL(i);
+}
+
+static int nv_napi_poll(struct napi_struct *napi, int budget)
+{
+	struct fe_priv *np = container_of(napi, struct fe_priv, napi);
+	struct net_device *dev = np->dev;
+	u8 __iomem *base = get_hwbase(dev);
+	unsigned long flags;
+	int retcode;
+	int rx_count, tx_work = 0, rx_work = 0;
+
+	do {
+		if (!nv_optimized(np)) {
+			spin_lock_irqsave(&np->lock, flags);
+			tx_work += nv_tx_done(dev, np->tx_ring_size);
+			spin_unlock_irqrestore(&np->lock, flags);
+
+			rx_count = nv_rx_process(dev, budget - rx_work);
+			retcode = nv_alloc_rx(dev);
+		} else {
+			spin_lock_irqsave(&np->lock, flags);
+			tx_work += nv_tx_done_optimized(dev, np->tx_ring_size);
+			spin_unlock_irqrestore(&np->lock, flags);
+
+			rx_count = nv_rx_process_optimized(dev,
+			    budget - rx_work);
+			retcode = nv_alloc_rx_optimized(dev);
+		}
+	} while (retcode == 0 &&
+		 rx_count > 0 && (rx_work += rx_count) < budget);
+
+	if (retcode) {
+		spin_lock_irqsave(&np->lock, flags);
+		if (!np->in_shutdown)
+			mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
+		spin_unlock_irqrestore(&np->lock, flags);
+	}
+
+	nv_change_interrupt_mode(dev, tx_work + rx_work);
+
+	if (unlikely(np->events & NVREG_IRQ_LINK)) {
+		spin_lock_irqsave(&np->lock, flags);
+		nv_link_irq(dev);
+		spin_unlock_irqrestore(&np->lock, flags);
+	}
+	if (unlikely(np->need_linktimer && time_after(jiffies, np->link_timeout))) {
+		spin_lock_irqsave(&np->lock, flags);
+		nv_linkchange(dev);
+		spin_unlock_irqrestore(&np->lock, flags);
+		np->link_timeout = jiffies + LINK_TIMEOUT;
+	}
+	if (unlikely(np->events & NVREG_IRQ_RECOVER_ERROR)) {
+		spin_lock_irqsave(&np->lock, flags);
+		if (!np->in_shutdown) {
+			np->nic_poll_irq = np->irqmask;
+			np->recover_error = 1;
+			mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
+		}
+		spin_unlock_irqrestore(&np->lock, flags);
+		napi_complete(napi);
+		return rx_work;
+	}
+
+	if (rx_work < budget) {
+		/* re-enable interrupts
+		   (msix not enabled in napi) */
+		napi_complete_done(napi, rx_work);
+
+		writel(np->irqmask, base + NvRegIrqMask);
+	}
+	return rx_work;
+}
+
+static irqreturn_t nv_nic_irq_rx(int foo, void *data)
+{
+	struct net_device *dev = (struct net_device *) data;
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+	u32 events;
+	int i;
+	unsigned long flags;
+
+	for (i = 0;; i++) {
+		events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQ_RX_ALL;
+		writel(events, base + NvRegMSIXIrqStatus);
+		netdev_dbg(dev, "rx irq events: %08x\n", events);
+		if (!(events & np->irqmask))
+			break;
+
+		if (nv_rx_process_optimized(dev, RX_WORK_PER_LOOP)) {
+			if (unlikely(nv_alloc_rx_optimized(dev))) {
+				spin_lock_irqsave(&np->lock, flags);
+				if (!np->in_shutdown)
+					mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
+				spin_unlock_irqrestore(&np->lock, flags);
+			}
+		}
+
+		if (unlikely(i > max_interrupt_work)) {
+			spin_lock_irqsave(&np->lock, flags);
+			/* disable interrupts on the nic */
+			writel(NVREG_IRQ_RX_ALL, base + NvRegIrqMask);
+			pci_push(base);
+
+			if (!np->in_shutdown) {
+				np->nic_poll_irq |= NVREG_IRQ_RX_ALL;
+				mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
+			}
+			spin_unlock_irqrestore(&np->lock, flags);
+			netdev_dbg(dev, "%s: too many iterations (%d)\n",
+				   __func__, i);
+			break;
+		}
+	}
+
+	return IRQ_RETVAL(i);
+}
+
+static irqreturn_t nv_nic_irq_other(int foo, void *data)
+{
+	struct net_device *dev = (struct net_device *) data;
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+	u32 events;
+	int i;
+	unsigned long flags;
+
+	for (i = 0;; i++) {
+		events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQ_OTHER;
+		writel(events, base + NvRegMSIXIrqStatus);
+		netdev_dbg(dev, "irq events: %08x\n", events);
+		if (!(events & np->irqmask))
+			break;
+
+		/* check tx in case we reached max loop limit in tx isr */
+		spin_lock_irqsave(&np->lock, flags);
+		nv_tx_done_optimized(dev, TX_WORK_PER_LOOP);
+		spin_unlock_irqrestore(&np->lock, flags);
+
+		if (events & NVREG_IRQ_LINK) {
+			spin_lock_irqsave(&np->lock, flags);
+			nv_link_irq(dev);
+			spin_unlock_irqrestore(&np->lock, flags);
+		}
+		if (np->need_linktimer && time_after(jiffies, np->link_timeout)) {
+			spin_lock_irqsave(&np->lock, flags);
+			nv_linkchange(dev);
+			spin_unlock_irqrestore(&np->lock, flags);
+			np->link_timeout = jiffies + LINK_TIMEOUT;
+		}
+		if (events & NVREG_IRQ_RECOVER_ERROR) {
+			spin_lock_irqsave(&np->lock, flags);
+			/* disable interrupts on the nic */
+			writel(NVREG_IRQ_OTHER, base + NvRegIrqMask);
+			pci_push(base);
+
+			if (!np->in_shutdown) {
+				np->nic_poll_irq |= NVREG_IRQ_OTHER;
+				np->recover_error = 1;
+				mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
+			}
+			spin_unlock_irqrestore(&np->lock, flags);
+			break;
+		}
+		if (unlikely(i > max_interrupt_work)) {
+			spin_lock_irqsave(&np->lock, flags);
+			/* disable interrupts on the nic */
+			writel(NVREG_IRQ_OTHER, base + NvRegIrqMask);
+			pci_push(base);
+
+			if (!np->in_shutdown) {
+				np->nic_poll_irq |= NVREG_IRQ_OTHER;
+				mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
+			}
+			spin_unlock_irqrestore(&np->lock, flags);
+			netdev_dbg(dev, "%s: too many iterations (%d)\n",
+				   __func__, i);
+			break;
+		}
+
+	}
+
+	return IRQ_RETVAL(i);
+}
+
+static irqreturn_t nv_nic_irq_test(int foo, void *data)
+{
+	struct net_device *dev = (struct net_device *) data;
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+	u32 events;
+
+	if (!(np->msi_flags & NV_MSI_X_ENABLED)) {
+		events = readl(base + NvRegIrqStatus) & NVREG_IRQSTAT_MASK;
+		writel(events & NVREG_IRQ_TIMER, base + NvRegIrqStatus);
+	} else {
+		events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQSTAT_MASK;
+		writel(events & NVREG_IRQ_TIMER, base + NvRegMSIXIrqStatus);
+	}
+	pci_push(base);
+	if (!(events & NVREG_IRQ_TIMER))
+		return IRQ_RETVAL(0);
+
+	nv_msi_workaround(np);
+
+	spin_lock(&np->lock);
+	np->intr_test = 1;
+	spin_unlock(&np->lock);
+
+	return IRQ_RETVAL(1);
+}
+
+static void set_msix_vector_map(struct net_device *dev, u32 vector, u32 irqmask)
+{
+	u8 __iomem *base = get_hwbase(dev);
+	int i;
+	u32 msixmap = 0;
+
+	/* Each interrupt bit can be mapped to a MSIX vector (4 bits).
+	 * MSIXMap0 represents the first 8 interrupts and MSIXMap1 represents
+	 * the remaining 8 interrupts.
+	 */
+	for (i = 0; i < 8; i++) {
+		if ((irqmask >> i) & 0x1)
+			msixmap |= vector << (i << 2);
+	}
+	writel(readl(base + NvRegMSIXMap0) | msixmap, base + NvRegMSIXMap0);
+
+	msixmap = 0;
+	for (i = 0; i < 8; i++) {
+		if ((irqmask >> (i + 8)) & 0x1)
+			msixmap |= vector << (i << 2);
+	}
+	writel(readl(base + NvRegMSIXMap1) | msixmap, base + NvRegMSIXMap1);
+}
+
+static int nv_request_irq(struct net_device *dev, int intr_test)
+{
+	struct fe_priv *np = get_nvpriv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+	int ret;
+	int i;
+	irqreturn_t (*handler)(int foo, void *data);
+
+	if (intr_test) {
+		handler = nv_nic_irq_test;
+	} else {
+		if (nv_optimized(np))
+			handler = nv_nic_irq_optimized;
+		else
+			handler = nv_nic_irq;
+	}
+
+	if (np->msi_flags & NV_MSI_X_CAPABLE) {
+		for (i = 0; i < (np->msi_flags & NV_MSI_X_VECTORS_MASK); i++)
+			np->msi_x_entry[i].entry = i;
+		ret = pci_enable_msix_range(np->pci_dev,
+					    np->msi_x_entry,
+					    np->msi_flags & NV_MSI_X_VECTORS_MASK,
+					    np->msi_flags & NV_MSI_X_VECTORS_MASK);
+		if (ret > 0) {
+			np->msi_flags |= NV_MSI_X_ENABLED;
+			if (optimization_mode == NV_OPTIMIZATION_MODE_THROUGHPUT && !intr_test) {
+				/* Request irq for rx handling */
+				sprintf(np->name_rx, "%s-rx", dev->name);
+				ret = request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector,
+						  nv_nic_irq_rx, IRQF_SHARED, np->name_rx, dev);
+				if (ret) {
+					netdev_info(dev,
+						    "request_irq failed for rx %d\n",
+						    ret);
+					pci_disable_msix(np->pci_dev);
+					np->msi_flags &= ~NV_MSI_X_ENABLED;
+					goto out_err;
+				}
+				/* Request irq for tx handling */
+				sprintf(np->name_tx, "%s-tx", dev->name);
+				ret = request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector,
+						  nv_nic_irq_tx, IRQF_SHARED, np->name_tx, dev);
+				if (ret) {
+					netdev_info(dev,
+						    "request_irq failed for tx %d\n",
+						    ret);
+					pci_disable_msix(np->pci_dev);
+					np->msi_flags &= ~NV_MSI_X_ENABLED;
+					goto out_free_rx;
+				}
+				/* Request irq for link and timer handling */
+				sprintf(np->name_other, "%s-other", dev->name);
+				ret = request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector,
+						  nv_nic_irq_other, IRQF_SHARED, np->name_other, dev);
+				if (ret) {
+					netdev_info(dev,
+						    "request_irq failed for link %d\n",
+						    ret);
+					pci_disable_msix(np->pci_dev);
+					np->msi_flags &= ~NV_MSI_X_ENABLED;
+					goto out_free_tx;
+				}
+				/* map interrupts to their respective vector */
+				writel(0, base + NvRegMSIXMap0);
+				writel(0, base + NvRegMSIXMap1);
+				set_msix_vector_map(dev, NV_MSI_X_VECTOR_RX, NVREG_IRQ_RX_ALL);
+				set_msix_vector_map(dev, NV_MSI_X_VECTOR_TX, NVREG_IRQ_TX_ALL);
+				set_msix_vector_map(dev, NV_MSI_X_VECTOR_OTHER, NVREG_IRQ_OTHER);
+			} else {
+				/* Request irq for all interrupts */
+				ret = request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector,
+						  handler, IRQF_SHARED, dev->name, dev);
+				if (ret) {
+					netdev_info(dev,
+						    "request_irq failed %d\n",
+						    ret);
+					pci_disable_msix(np->pci_dev);
+					np->msi_flags &= ~NV_MSI_X_ENABLED;
+					goto out_err;
+				}
+
+				/* map interrupts to vector 0 */
+				writel(0, base + NvRegMSIXMap0);
+				writel(0, base + NvRegMSIXMap1);
+			}
+			netdev_info(dev, "MSI-X enabled\n");
+			return 0;
+		}
+	}
+	if (np->msi_flags & NV_MSI_CAPABLE) {
+		ret = pci_enable_msi(np->pci_dev);
+		if (ret == 0) {
+			np->msi_flags |= NV_MSI_ENABLED;
+			ret = request_irq(np->pci_dev->irq, handler, IRQF_SHARED, dev->name, dev);
+			if (ret) {
+				netdev_info(dev, "request_irq failed %d\n",
+					    ret);
+				pci_disable_msi(np->pci_dev);
+				np->msi_flags &= ~NV_MSI_ENABLED;
+				goto out_err;
+			}
+
+			/* map interrupts to vector 0 */
+			writel(0, base + NvRegMSIMap0);
+			writel(0, base + NvRegMSIMap1);
+			/* enable msi vector 0 */
+			writel(NVREG_MSI_VECTOR_0_ENABLED, base + NvRegMSIIrqMask);
+			netdev_info(dev, "MSI enabled\n");
+			return 0;
+		}
+	}
+
+	if (request_irq(np->pci_dev->irq, handler, IRQF_SHARED, dev->name, dev) != 0)
+		goto out_err;
+
+	return 0;
+out_free_tx:
+	free_irq(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector, dev);
+out_free_rx:
+	free_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector, dev);
+out_err:
+	return 1;
+}
+
+static void nv_free_irq(struct net_device *dev)
+{
+	struct fe_priv *np = get_nvpriv(dev);
+	int i;
+
+	if (np->msi_flags & NV_MSI_X_ENABLED) {
+		for (i = 0; i < (np->msi_flags & NV_MSI_X_VECTORS_MASK); i++)
+			free_irq(np->msi_x_entry[i].vector, dev);
+		pci_disable_msix(np->pci_dev);
+		np->msi_flags &= ~NV_MSI_X_ENABLED;
+	} else {
+		free_irq(np->pci_dev->irq, dev);
+		if (np->msi_flags & NV_MSI_ENABLED) {
+			pci_disable_msi(np->pci_dev);
+			np->msi_flags &= ~NV_MSI_ENABLED;
+		}
+	}
+}
+
+static void nv_do_nic_poll(struct timer_list *t)
+{
+	struct fe_priv *np = from_timer(np, t, nic_poll);
+	struct net_device *dev = np->dev;
+	u8 __iomem *base = get_hwbase(dev);
+	u32 mask = 0;
+	unsigned long flags;
+	unsigned int irq = 0;
+
+	/*
+	 * First disable irq(s) and then
+	 * reenable interrupts on the nic, we have to do this before calling
+	 * nv_nic_irq because that may decide to do otherwise
+	 */
+
+	if (!using_multi_irqs(dev)) {
+		if (np->msi_flags & NV_MSI_X_ENABLED)
+			irq = np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector;
+		else
+			irq = np->pci_dev->irq;
+		mask = np->irqmask;
+	} else {
+		if (np->nic_poll_irq & NVREG_IRQ_RX_ALL) {
+			irq = np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector;
+			mask |= NVREG_IRQ_RX_ALL;
+		}
+		if (np->nic_poll_irq & NVREG_IRQ_TX_ALL) {
+			irq = np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector;
+			mask |= NVREG_IRQ_TX_ALL;
+		}
+		if (np->nic_poll_irq & NVREG_IRQ_OTHER) {
+			irq = np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector;
+			mask |= NVREG_IRQ_OTHER;
+		}
+	}
+
+	disable_irq_nosync_lockdep_irqsave(irq, &flags);
+	synchronize_irq(irq);
+
+	if (np->recover_error) {
+		np->recover_error = 0;
+		netdev_info(dev, "MAC in recoverable error state\n");
+		if (netif_running(dev)) {
+			netif_tx_lock_bh(dev);
+			netif_addr_lock(dev);
+			spin_lock(&np->lock);
+			/* stop engines */
+			nv_stop_rxtx(dev);
+			if (np->driver_data & DEV_HAS_POWER_CNTRL)
+				nv_mac_reset(dev);
+			nv_txrx_reset(dev);
+			/* drain rx queue */
+			nv_drain_rxtx(dev);
+			/* reinit driver view of the rx queue */
+			set_bufsize(dev);
+			if (nv_init_ring(dev)) {
+				if (!np->in_shutdown)
+					mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
+			}
+			/* reinit nic view of the rx queue */
+			writel(np->rx_buf_sz, base + NvRegOffloadConfig);
+			setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING);
+			writel(((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT),
+				base + NvRegRingSizes);
+			pci_push(base);
+			writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
+			pci_push(base);
+			/* clear interrupts */
+			if (!(np->msi_flags & NV_MSI_X_ENABLED))
+				writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus);
+			else
+				writel(NVREG_IRQSTAT_MASK, base + NvRegMSIXIrqStatus);
+
+			/* restart rx engine */
+			nv_start_rxtx(dev);
+			spin_unlock(&np->lock);
+			netif_addr_unlock(dev);
+			netif_tx_unlock_bh(dev);
+		}
+	}
+
+	writel(mask, base + NvRegIrqMask);
+	pci_push(base);
+
+	if (!using_multi_irqs(dev)) {
+		np->nic_poll_irq = 0;
+		if (nv_optimized(np))
+			nv_nic_irq_optimized(0, dev);
+		else
+			nv_nic_irq(0, dev);
+	} else {
+		if (np->nic_poll_irq & NVREG_IRQ_RX_ALL) {
+			np->nic_poll_irq &= ~NVREG_IRQ_RX_ALL;
+			nv_nic_irq_rx(0, dev);
+		}
+		if (np->nic_poll_irq & NVREG_IRQ_TX_ALL) {
+			np->nic_poll_irq &= ~NVREG_IRQ_TX_ALL;
+			nv_nic_irq_tx(0, dev);
+		}
+		if (np->nic_poll_irq & NVREG_IRQ_OTHER) {
+			np->nic_poll_irq &= ~NVREG_IRQ_OTHER;
+			nv_nic_irq_other(0, dev);
+		}
+	}
+
+	enable_irq_lockdep_irqrestore(irq, &flags);
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void nv_poll_controller(struct net_device *dev)
+{
+	struct fe_priv *np = netdev_priv(dev);
+
+	nv_do_nic_poll(&np->nic_poll);
+}
+#endif
+
+static void nv_do_stats_poll(struct timer_list *t)
+	__acquires(&netdev_priv(dev)->hwstats_lock)
+	__releases(&netdev_priv(dev)->hwstats_lock)
+{
+	struct fe_priv *np = from_timer(np, t, stats_poll);
+	struct net_device *dev = np->dev;
+
+	/* If lock is currently taken, the stats are being refreshed
+	 * and hence fresh enough */
+	if (spin_trylock(&np->hwstats_lock)) {
+		nv_update_stats(dev);
+		spin_unlock(&np->hwstats_lock);
+	}
+
+	if (!np->in_shutdown)
+		mod_timer(&np->stats_poll,
+			round_jiffies(jiffies + STATS_INTERVAL));
+}
+
+static void nv_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
+	strlcpy(info->version, FORCEDETH_VERSION, sizeof(info->version));
+	strlcpy(info->bus_info, pci_name(np->pci_dev), sizeof(info->bus_info));
+}
+
+static void nv_get_wol(struct net_device *dev, struct ethtool_wolinfo *wolinfo)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	wolinfo->supported = WAKE_MAGIC;
+
+	spin_lock_irq(&np->lock);
+	if (np->wolenabled)
+		wolinfo->wolopts = WAKE_MAGIC;
+	spin_unlock_irq(&np->lock);
+}
+
+static int nv_set_wol(struct net_device *dev, struct ethtool_wolinfo *wolinfo)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+	u32 flags = 0;
+
+	if (wolinfo->wolopts == 0) {
+		np->wolenabled = 0;
+	} else if (wolinfo->wolopts & WAKE_MAGIC) {
+		np->wolenabled = 1;
+		flags = NVREG_WAKEUPFLAGS_ENABLE;
+	}
+	if (netif_running(dev)) {
+		spin_lock_irq(&np->lock);
+		writel(flags, base + NvRegWakeUpFlags);
+		spin_unlock_irq(&np->lock);
+	}
+	device_set_wakeup_enable(&np->pci_dev->dev, np->wolenabled);
+	return 0;
+}
+
+static int nv_get_link_ksettings(struct net_device *dev,
+				 struct ethtool_link_ksettings *cmd)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u32 speed, supported, advertising;
+	int adv;
+
+	spin_lock_irq(&np->lock);
+	cmd->base.port = PORT_MII;
+	if (!netif_running(dev)) {
+		/* We do not track link speed / duplex setting if the
+		 * interface is disabled. Force a link check */
+		if (nv_update_linkspeed(dev)) {
+			netif_carrier_on(dev);
+		} else {
+			netif_carrier_off(dev);
+		}
+	}
+
+	if (netif_carrier_ok(dev)) {
+		switch (np->linkspeed & (NVREG_LINKSPEED_MASK)) {
+		case NVREG_LINKSPEED_10:
+			speed = SPEED_10;
+			break;
+		case NVREG_LINKSPEED_100:
+			speed = SPEED_100;
+			break;
+		case NVREG_LINKSPEED_1000:
+			speed = SPEED_1000;
+			break;
+		default:
+			speed = -1;
+			break;
+		}
+		cmd->base.duplex = DUPLEX_HALF;
+		if (np->duplex)
+			cmd->base.duplex = DUPLEX_FULL;
+	} else {
+		speed = SPEED_UNKNOWN;
+		cmd->base.duplex = DUPLEX_UNKNOWN;
+	}
+	cmd->base.speed = speed;
+	cmd->base.autoneg = np->autoneg;
+
+	advertising = ADVERTISED_MII;
+	if (np->autoneg) {
+		advertising |= ADVERTISED_Autoneg;
+		adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
+		if (adv & ADVERTISE_10HALF)
+			advertising |= ADVERTISED_10baseT_Half;
+		if (adv & ADVERTISE_10FULL)
+			advertising |= ADVERTISED_10baseT_Full;
+		if (adv & ADVERTISE_100HALF)
+			advertising |= ADVERTISED_100baseT_Half;
+		if (adv & ADVERTISE_100FULL)
+			advertising |= ADVERTISED_100baseT_Full;
+		if (np->gigabit == PHY_GIGABIT) {
+			adv = mii_rw(dev, np->phyaddr, MII_CTRL1000, MII_READ);
+			if (adv & ADVERTISE_1000FULL)
+				advertising |= ADVERTISED_1000baseT_Full;
+		}
+	}
+	supported = (SUPPORTED_Autoneg |
+		SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full |
+		SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full |
+		SUPPORTED_MII);
+	if (np->gigabit == PHY_GIGABIT)
+		supported |= SUPPORTED_1000baseT_Full;
+
+	cmd->base.phy_address = np->phyaddr;
+
+	ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
+						supported);
+	ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
+						advertising);
+
+	/* ignore maxtxpkt, maxrxpkt for now */
+	spin_unlock_irq(&np->lock);
+	return 0;
+}
+
+static int nv_set_link_ksettings(struct net_device *dev,
+				 const struct ethtool_link_ksettings *cmd)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u32 speed = cmd->base.speed;
+	u32 advertising;
+
+	ethtool_convert_link_mode_to_legacy_u32(&advertising,
+						cmd->link_modes.advertising);
+
+	if (cmd->base.port != PORT_MII)
+		return -EINVAL;
+	if (cmd->base.phy_address != np->phyaddr) {
+		/* TODO: support switching between multiple phys. Should be
+		 * trivial, but not enabled due to lack of test hardware. */
+		return -EINVAL;
+	}
+	if (cmd->base.autoneg == AUTONEG_ENABLE) {
+		u32 mask;
+
+		mask = ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full |
+			  ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full;
+		if (np->gigabit == PHY_GIGABIT)
+			mask |= ADVERTISED_1000baseT_Full;
+
+		if ((advertising & mask) == 0)
+			return -EINVAL;
+
+	} else if (cmd->base.autoneg == AUTONEG_DISABLE) {
+		/* Note: autonegotiation disable, speed 1000 intentionally
+		 * forbidden - no one should need that. */
+
+		if (speed != SPEED_10 && speed != SPEED_100)
+			return -EINVAL;
+		if (cmd->base.duplex != DUPLEX_HALF &&
+		    cmd->base.duplex != DUPLEX_FULL)
+			return -EINVAL;
+	} else {
+		return -EINVAL;
+	}
+
+	netif_carrier_off(dev);
+	if (netif_running(dev)) {
+		unsigned long flags;
+
+		nv_disable_irq(dev);
+		netif_tx_lock_bh(dev);
+		netif_addr_lock(dev);
+		/* with plain spinlock lockdep complains */
+		spin_lock_irqsave(&np->lock, flags);
+		/* stop engines */
+		/* FIXME:
+		 * this can take some time, and interrupts are disabled
+		 * due to spin_lock_irqsave, but let's hope no daemon
+		 * is going to change the settings very often...
+		 * Worst case:
+		 * NV_RXSTOP_DELAY1MAX + NV_TXSTOP_DELAY1MAX
+		 * + some minor delays, which is up to a second approximately
+		 */
+		nv_stop_rxtx(dev);
+		spin_unlock_irqrestore(&np->lock, flags);
+		netif_addr_unlock(dev);
+		netif_tx_unlock_bh(dev);
+	}
+
+	if (cmd->base.autoneg == AUTONEG_ENABLE) {
+		int adv, bmcr;
+
+		np->autoneg = 1;
+
+		/* advertise only what has been requested */
+		adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
+		adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4 | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
+		if (advertising & ADVERTISED_10baseT_Half)
+			adv |= ADVERTISE_10HALF;
+		if (advertising & ADVERTISED_10baseT_Full)
+			adv |= ADVERTISE_10FULL;
+		if (advertising & ADVERTISED_100baseT_Half)
+			adv |= ADVERTISE_100HALF;
+		if (advertising & ADVERTISED_100baseT_Full)
+			adv |= ADVERTISE_100FULL;
+		if (np->pause_flags & NV_PAUSEFRAME_RX_REQ)  /* for rx we set both advertisements but disable tx pause */
+			adv |=  ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
+		if (np->pause_flags & NV_PAUSEFRAME_TX_REQ)
+			adv |=  ADVERTISE_PAUSE_ASYM;
+		mii_rw(dev, np->phyaddr, MII_ADVERTISE, adv);
+
+		if (np->gigabit == PHY_GIGABIT) {
+			adv = mii_rw(dev, np->phyaddr, MII_CTRL1000, MII_READ);
+			adv &= ~ADVERTISE_1000FULL;
+			if (advertising & ADVERTISED_1000baseT_Full)
+				adv |= ADVERTISE_1000FULL;
+			mii_rw(dev, np->phyaddr, MII_CTRL1000, adv);
+		}
+
+		if (netif_running(dev))
+			netdev_info(dev, "link down\n");
+		bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
+		if (np->phy_model == PHY_MODEL_MARVELL_E3016) {
+			bmcr |= BMCR_ANENABLE;
+			/* reset the phy in order for settings to stick,
+			 * and cause autoneg to start */
+			if (phy_reset(dev, bmcr)) {
+				netdev_info(dev, "phy reset failed\n");
+				return -EINVAL;
+			}
+		} else {
+			bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART);
+			mii_rw(dev, np->phyaddr, MII_BMCR, bmcr);
+		}
+	} else {
+		int adv, bmcr;
+
+		np->autoneg = 0;
+
+		adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
+		adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4 | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
+		if (speed == SPEED_10 && cmd->base.duplex == DUPLEX_HALF)
+			adv |= ADVERTISE_10HALF;
+		if (speed == SPEED_10 && cmd->base.duplex == DUPLEX_FULL)
+			adv |= ADVERTISE_10FULL;
+		if (speed == SPEED_100 && cmd->base.duplex == DUPLEX_HALF)
+			adv |= ADVERTISE_100HALF;
+		if (speed == SPEED_100 && cmd->base.duplex == DUPLEX_FULL)
+			adv |= ADVERTISE_100FULL;
+		np->pause_flags &= ~(NV_PAUSEFRAME_AUTONEG|NV_PAUSEFRAME_RX_ENABLE|NV_PAUSEFRAME_TX_ENABLE);
+		if (np->pause_flags & NV_PAUSEFRAME_RX_REQ) {/* for rx we set both advertisements but disable tx pause */
+			adv |=  ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
+			np->pause_flags |= NV_PAUSEFRAME_RX_ENABLE;
+		}
+		if (np->pause_flags & NV_PAUSEFRAME_TX_REQ) {
+			adv |=  ADVERTISE_PAUSE_ASYM;
+			np->pause_flags |= NV_PAUSEFRAME_TX_ENABLE;
+		}
+		mii_rw(dev, np->phyaddr, MII_ADVERTISE, adv);
+		np->fixed_mode = adv;
+
+		if (np->gigabit == PHY_GIGABIT) {
+			adv = mii_rw(dev, np->phyaddr, MII_CTRL1000, MII_READ);
+			adv &= ~ADVERTISE_1000FULL;
+			mii_rw(dev, np->phyaddr, MII_CTRL1000, adv);
+		}
+
+		bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
+		bmcr &= ~(BMCR_ANENABLE|BMCR_SPEED100|BMCR_SPEED1000|BMCR_FULLDPLX);
+		if (np->fixed_mode & (ADVERTISE_10FULL|ADVERTISE_100FULL))
+			bmcr |= BMCR_FULLDPLX;
+		if (np->fixed_mode & (ADVERTISE_100HALF|ADVERTISE_100FULL))
+			bmcr |= BMCR_SPEED100;
+		if (np->phy_oui == PHY_OUI_MARVELL) {
+			/* reset the phy in order for forced mode settings to stick */
+			if (phy_reset(dev, bmcr)) {
+				netdev_info(dev, "phy reset failed\n");
+				return -EINVAL;
+			}
+		} else {
+			mii_rw(dev, np->phyaddr, MII_BMCR, bmcr);
+			if (netif_running(dev)) {
+				/* Wait a bit and then reconfigure the nic. */
+				udelay(10);
+				nv_linkchange(dev);
+			}
+		}
+	}
+
+	if (netif_running(dev)) {
+		nv_start_rxtx(dev);
+		nv_enable_irq(dev);
+	}
+
+	return 0;
+}
+
+#define FORCEDETH_REGS_VER	1
+
+static int nv_get_regs_len(struct net_device *dev)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	return np->register_size;
+}
+
+static void nv_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *buf)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+	u32 *rbuf = buf;
+	int i;
+
+	regs->version = FORCEDETH_REGS_VER;
+	spin_lock_irq(&np->lock);
+	for (i = 0; i < np->register_size/sizeof(u32); i++)
+		rbuf[i] = readl(base + i*sizeof(u32));
+	spin_unlock_irq(&np->lock);
+}
+
+static int nv_nway_reset(struct net_device *dev)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	int ret;
+
+	if (np->autoneg) {
+		int bmcr;
+
+		netif_carrier_off(dev);
+		if (netif_running(dev)) {
+			nv_disable_irq(dev);
+			netif_tx_lock_bh(dev);
+			netif_addr_lock(dev);
+			spin_lock(&np->lock);
+			/* stop engines */
+			nv_stop_rxtx(dev);
+			spin_unlock(&np->lock);
+			netif_addr_unlock(dev);
+			netif_tx_unlock_bh(dev);
+			netdev_info(dev, "link down\n");
+		}
+
+		bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
+		if (np->phy_model == PHY_MODEL_MARVELL_E3016) {
+			bmcr |= BMCR_ANENABLE;
+			/* reset the phy in order for settings to stick*/
+			if (phy_reset(dev, bmcr)) {
+				netdev_info(dev, "phy reset failed\n");
+				return -EINVAL;
+			}
+		} else {
+			bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART);
+			mii_rw(dev, np->phyaddr, MII_BMCR, bmcr);
+		}
+
+		if (netif_running(dev)) {
+			nv_start_rxtx(dev);
+			nv_enable_irq(dev);
+		}
+		ret = 0;
+	} else {
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+static void nv_get_ringparam(struct net_device *dev, struct ethtool_ringparam* ring)
+{
+	struct fe_priv *np = netdev_priv(dev);
+
+	ring->rx_max_pending = (np->desc_ver == DESC_VER_1) ? RING_MAX_DESC_VER_1 : RING_MAX_DESC_VER_2_3;
+	ring->tx_max_pending = (np->desc_ver == DESC_VER_1) ? RING_MAX_DESC_VER_1 : RING_MAX_DESC_VER_2_3;
+
+	ring->rx_pending = np->rx_ring_size;
+	ring->tx_pending = np->tx_ring_size;
+}
+
+static int nv_set_ringparam(struct net_device *dev, struct ethtool_ringparam* ring)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+	u8 *rxtx_ring, *rx_skbuff, *tx_skbuff;
+	dma_addr_t ring_addr;
+
+	if (ring->rx_pending < RX_RING_MIN ||
+	    ring->tx_pending < TX_RING_MIN ||
+	    ring->rx_mini_pending != 0 ||
+	    ring->rx_jumbo_pending != 0 ||
+	    (np->desc_ver == DESC_VER_1 &&
+	     (ring->rx_pending > RING_MAX_DESC_VER_1 ||
+	      ring->tx_pending > RING_MAX_DESC_VER_1)) ||
+	    (np->desc_ver != DESC_VER_1 &&
+	     (ring->rx_pending > RING_MAX_DESC_VER_2_3 ||
+	      ring->tx_pending > RING_MAX_DESC_VER_2_3))) {
+		return -EINVAL;
+	}
+
+	/* allocate new rings */
+	if (!nv_optimized(np)) {
+		rxtx_ring = dma_alloc_coherent(&np->pci_dev->dev,
+					       sizeof(struct ring_desc) *
+					       (ring->rx_pending +
+					       ring->tx_pending),
+					       &ring_addr, GFP_ATOMIC);
+	} else {
+		rxtx_ring = dma_alloc_coherent(&np->pci_dev->dev,
+					       sizeof(struct ring_desc_ex) *
+					       (ring->rx_pending +
+					       ring->tx_pending),
+					       &ring_addr, GFP_ATOMIC);
+	}
+	rx_skbuff = kmalloc_array(ring->rx_pending, sizeof(struct nv_skb_map),
+				  GFP_KERNEL);
+	tx_skbuff = kmalloc_array(ring->tx_pending, sizeof(struct nv_skb_map),
+				  GFP_KERNEL);
+	if (!rxtx_ring || !rx_skbuff || !tx_skbuff) {
+		/* fall back to old rings */
+		if (!nv_optimized(np)) {
+			if (rxtx_ring)
+				dma_free_coherent(&np->pci_dev->dev,
+						  sizeof(struct ring_desc) *
+						  (ring->rx_pending +
+						  ring->tx_pending),
+						  rxtx_ring, ring_addr);
+		} else {
+			if (rxtx_ring)
+				dma_free_coherent(&np->pci_dev->dev,
+						  sizeof(struct ring_desc_ex) *
+						  (ring->rx_pending +
+						  ring->tx_pending),
+						  rxtx_ring, ring_addr);
+		}
+
+		kfree(rx_skbuff);
+		kfree(tx_skbuff);
+		goto exit;
+	}
+
+	if (netif_running(dev)) {
+		nv_disable_irq(dev);
+		nv_napi_disable(dev);
+		netif_tx_lock_bh(dev);
+		netif_addr_lock(dev);
+		spin_lock(&np->lock);
+		/* stop engines */
+		nv_stop_rxtx(dev);
+		nv_txrx_reset(dev);
+		/* drain queues */
+		nv_drain_rxtx(dev);
+		/* delete queues */
+		free_rings(dev);
+	}
+
+	/* set new values */
+	np->rx_ring_size = ring->rx_pending;
+	np->tx_ring_size = ring->tx_pending;
+
+	if (!nv_optimized(np)) {
+		np->rx_ring.orig = (struct ring_desc *)rxtx_ring;
+		np->tx_ring.orig = &np->rx_ring.orig[np->rx_ring_size];
+	} else {
+		np->rx_ring.ex = (struct ring_desc_ex *)rxtx_ring;
+		np->tx_ring.ex = &np->rx_ring.ex[np->rx_ring_size];
+	}
+	np->rx_skb = (struct nv_skb_map *)rx_skbuff;
+	np->tx_skb = (struct nv_skb_map *)tx_skbuff;
+	np->ring_addr = ring_addr;
+
+	memset(np->rx_skb, 0, sizeof(struct nv_skb_map) * np->rx_ring_size);
+	memset(np->tx_skb, 0, sizeof(struct nv_skb_map) * np->tx_ring_size);
+
+	if (netif_running(dev)) {
+		/* reinit driver view of the queues */
+		set_bufsize(dev);
+		if (nv_init_ring(dev)) {
+			if (!np->in_shutdown)
+				mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
+		}
+
+		/* reinit nic view of the queues */
+		writel(np->rx_buf_sz, base + NvRegOffloadConfig);
+		setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING);
+		writel(((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT),
+			base + NvRegRingSizes);
+		pci_push(base);
+		writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
+		pci_push(base);
+
+		/* restart engines */
+		nv_start_rxtx(dev);
+		spin_unlock(&np->lock);
+		netif_addr_unlock(dev);
+		netif_tx_unlock_bh(dev);
+		nv_napi_enable(dev);
+		nv_enable_irq(dev);
+	}
+	return 0;
+exit:
+	return -ENOMEM;
+}
+
+static void nv_get_pauseparam(struct net_device *dev, struct ethtool_pauseparam* pause)
+{
+	struct fe_priv *np = netdev_priv(dev);
+
+	pause->autoneg = (np->pause_flags & NV_PAUSEFRAME_AUTONEG) != 0;
+	pause->rx_pause = (np->pause_flags & NV_PAUSEFRAME_RX_ENABLE) != 0;
+	pause->tx_pause = (np->pause_flags & NV_PAUSEFRAME_TX_ENABLE) != 0;
+}
+
+static int nv_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam* pause)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	int adv, bmcr;
+
+	if ((!np->autoneg && np->duplex == 0) ||
+	    (np->autoneg && !pause->autoneg && np->duplex == 0)) {
+		netdev_info(dev, "can not set pause settings when forced link is in half duplex\n");
+		return -EINVAL;
+	}
+	if (pause->tx_pause && !(np->pause_flags & NV_PAUSEFRAME_TX_CAPABLE)) {
+		netdev_info(dev, "hardware does not support tx pause frames\n");
+		return -EINVAL;
+	}
+
+	netif_carrier_off(dev);
+	if (netif_running(dev)) {
+		nv_disable_irq(dev);
+		netif_tx_lock_bh(dev);
+		netif_addr_lock(dev);
+		spin_lock(&np->lock);
+		/* stop engines */
+		nv_stop_rxtx(dev);
+		spin_unlock(&np->lock);
+		netif_addr_unlock(dev);
+		netif_tx_unlock_bh(dev);
+	}
+
+	np->pause_flags &= ~(NV_PAUSEFRAME_RX_REQ|NV_PAUSEFRAME_TX_REQ);
+	if (pause->rx_pause)
+		np->pause_flags |= NV_PAUSEFRAME_RX_REQ;
+	if (pause->tx_pause)
+		np->pause_flags |= NV_PAUSEFRAME_TX_REQ;
+
+	if (np->autoneg && pause->autoneg) {
+		np->pause_flags |= NV_PAUSEFRAME_AUTONEG;
+
+		adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
+		adv &= ~(ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
+		if (np->pause_flags & NV_PAUSEFRAME_RX_REQ) /* for rx we set both advertisements but disable tx pause */
+			adv |=  ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
+		if (np->pause_flags & NV_PAUSEFRAME_TX_REQ)
+			adv |=  ADVERTISE_PAUSE_ASYM;
+		mii_rw(dev, np->phyaddr, MII_ADVERTISE, adv);
+
+		if (netif_running(dev))
+			netdev_info(dev, "link down\n");
+		bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
+		bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART);
+		mii_rw(dev, np->phyaddr, MII_BMCR, bmcr);
+	} else {
+		np->pause_flags &= ~(NV_PAUSEFRAME_AUTONEG|NV_PAUSEFRAME_RX_ENABLE|NV_PAUSEFRAME_TX_ENABLE);
+		if (pause->rx_pause)
+			np->pause_flags |= NV_PAUSEFRAME_RX_ENABLE;
+		if (pause->tx_pause)
+			np->pause_flags |= NV_PAUSEFRAME_TX_ENABLE;
+
+		if (!netif_running(dev))
+			nv_update_linkspeed(dev);
+		else
+			nv_update_pause(dev, np->pause_flags);
+	}
+
+	if (netif_running(dev)) {
+		nv_start_rxtx(dev);
+		nv_enable_irq(dev);
+	}
+	return 0;
+}
+
+static int nv_set_loopback(struct net_device *dev, netdev_features_t features)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	unsigned long flags;
+	u32 miicontrol;
+	int err, retval = 0;
+
+	spin_lock_irqsave(&np->lock, flags);
+	miicontrol = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
+	if (features & NETIF_F_LOOPBACK) {
+		if (miicontrol & BMCR_LOOPBACK) {
+			spin_unlock_irqrestore(&np->lock, flags);
+			netdev_info(dev, "Loopback already enabled\n");
+			return 0;
+		}
+		nv_disable_irq(dev);
+		/* Turn on loopback mode */
+		miicontrol |= BMCR_LOOPBACK | BMCR_FULLDPLX | BMCR_SPEED1000;
+		err = mii_rw(dev, np->phyaddr, MII_BMCR, miicontrol);
+		if (err) {
+			retval = PHY_ERROR;
+			spin_unlock_irqrestore(&np->lock, flags);
+			phy_init(dev);
+		} else {
+			if (netif_running(dev)) {
+				/* Force 1000 Mbps full-duplex */
+				nv_force_linkspeed(dev, NVREG_LINKSPEED_1000,
+									 1);
+				/* Force link up */
+				netif_carrier_on(dev);
+			}
+			spin_unlock_irqrestore(&np->lock, flags);
+			netdev_info(dev,
+				"Internal PHY loopback mode enabled.\n");
+		}
+	} else {
+		if (!(miicontrol & BMCR_LOOPBACK)) {
+			spin_unlock_irqrestore(&np->lock, flags);
+			netdev_info(dev, "Loopback already disabled\n");
+			return 0;
+		}
+		nv_disable_irq(dev);
+		/* Turn off loopback */
+		spin_unlock_irqrestore(&np->lock, flags);
+		netdev_info(dev, "Internal PHY loopback mode disabled.\n");
+		phy_init(dev);
+	}
+	msleep(500);
+	spin_lock_irqsave(&np->lock, flags);
+	nv_enable_irq(dev);
+	spin_unlock_irqrestore(&np->lock, flags);
+
+	return retval;
+}
+
+static netdev_features_t nv_fix_features(struct net_device *dev,
+	netdev_features_t features)
+{
+	/* vlan is dependent on rx checksum offload */
+	if (features & (NETIF_F_HW_VLAN_CTAG_TX|NETIF_F_HW_VLAN_CTAG_RX))
+		features |= NETIF_F_RXCSUM;
+
+	return features;
+}
+
+static void nv_vlan_mode(struct net_device *dev, netdev_features_t features)
+{
+	struct fe_priv *np = get_nvpriv(dev);
+
+	spin_lock_irq(&np->lock);
+
+	if (features & NETIF_F_HW_VLAN_CTAG_RX)
+		np->txrxctl_bits |= NVREG_TXRXCTL_VLANSTRIP;
+	else
+		np->txrxctl_bits &= ~NVREG_TXRXCTL_VLANSTRIP;
+
+	if (features & NETIF_F_HW_VLAN_CTAG_TX)
+		np->txrxctl_bits |= NVREG_TXRXCTL_VLANINS;
+	else
+		np->txrxctl_bits &= ~NVREG_TXRXCTL_VLANINS;
+
+	writel(np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
+
+	spin_unlock_irq(&np->lock);
+}
+
+static int nv_set_features(struct net_device *dev, netdev_features_t features)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+	netdev_features_t changed = dev->features ^ features;
+	int retval;
+
+	if ((changed & NETIF_F_LOOPBACK) && netif_running(dev)) {
+		retval = nv_set_loopback(dev, features);
+		if (retval != 0)
+			return retval;
+	}
+
+	if (changed & NETIF_F_RXCSUM) {
+		spin_lock_irq(&np->lock);
+
+		if (features & NETIF_F_RXCSUM)
+			np->txrxctl_bits |= NVREG_TXRXCTL_RXCHECK;
+		else
+			np->txrxctl_bits &= ~NVREG_TXRXCTL_RXCHECK;
+
+		if (netif_running(dev))
+			writel(np->txrxctl_bits, base + NvRegTxRxControl);
+
+		spin_unlock_irq(&np->lock);
+	}
+
+	if (changed & (NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX))
+		nv_vlan_mode(dev, features);
+
+	return 0;
+}
+
+static int nv_get_sset_count(struct net_device *dev, int sset)
+{
+	struct fe_priv *np = netdev_priv(dev);
+
+	switch (sset) {
+	case ETH_SS_TEST:
+		if (np->driver_data & DEV_HAS_TEST_EXTENDED)
+			return NV_TEST_COUNT_EXTENDED;
+		else
+			return NV_TEST_COUNT_BASE;
+	case ETH_SS_STATS:
+		if (np->driver_data & DEV_HAS_STATISTICS_V3)
+			return NV_DEV_STATISTICS_V3_COUNT;
+		else if (np->driver_data & DEV_HAS_STATISTICS_V2)
+			return NV_DEV_STATISTICS_V2_COUNT;
+		else if (np->driver_data & DEV_HAS_STATISTICS_V1)
+			return NV_DEV_STATISTICS_V1_COUNT;
+		else
+			return 0;
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static void nv_get_ethtool_stats(struct net_device *dev,
+				 struct ethtool_stats *estats, u64 *buffer)
+	__acquires(&netdev_priv(dev)->hwstats_lock)
+	__releases(&netdev_priv(dev)->hwstats_lock)
+{
+	struct fe_priv *np = netdev_priv(dev);
+
+	spin_lock_bh(&np->hwstats_lock);
+	nv_update_stats(dev);
+	memcpy(buffer, &np->estats,
+	       nv_get_sset_count(dev, ETH_SS_STATS)*sizeof(u64));
+	spin_unlock_bh(&np->hwstats_lock);
+}
+
+static int nv_link_test(struct net_device *dev)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	int mii_status;
+
+	mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
+	mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
+
+	/* check phy link status */
+	if (!(mii_status & BMSR_LSTATUS))
+		return 0;
+	else
+		return 1;
+}
+
+static int nv_register_test(struct net_device *dev)
+{
+	u8 __iomem *base = get_hwbase(dev);
+	int i = 0;
+	u32 orig_read, new_read;
+
+	do {
+		orig_read = readl(base + nv_registers_test[i].reg);
+
+		/* xor with mask to toggle bits */
+		orig_read ^= nv_registers_test[i].mask;
+
+		writel(orig_read, base + nv_registers_test[i].reg);
+
+		new_read = readl(base + nv_registers_test[i].reg);
+
+		if ((new_read & nv_registers_test[i].mask) != (orig_read & nv_registers_test[i].mask))
+			return 0;
+
+		/* restore original value */
+		orig_read ^= nv_registers_test[i].mask;
+		writel(orig_read, base + nv_registers_test[i].reg);
+
+	} while (nv_registers_test[++i].reg != 0);
+
+	return 1;
+}
+
+static int nv_interrupt_test(struct net_device *dev)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+	int ret = 1;
+	int testcnt;
+	u32 save_msi_flags, save_poll_interval = 0;
+
+	if (netif_running(dev)) {
+		/* free current irq */
+		nv_free_irq(dev);
+		save_poll_interval = readl(base+NvRegPollingInterval);
+	}
+
+	/* flag to test interrupt handler */
+	np->intr_test = 0;
+
+	/* setup test irq */
+	save_msi_flags = np->msi_flags;
+	np->msi_flags &= ~NV_MSI_X_VECTORS_MASK;
+	np->msi_flags |= 0x001; /* setup 1 vector */
+	if (nv_request_irq(dev, 1))
+		return 0;
+
+	/* setup timer interrupt */
+	writel(NVREG_POLL_DEFAULT_CPU, base + NvRegPollingInterval);
+	writel(NVREG_UNKSETUP6_VAL, base + NvRegUnknownSetupReg6);
+
+	nv_enable_hw_interrupts(dev, NVREG_IRQ_TIMER);
+
+	/* wait for at least one interrupt */
+	msleep(100);
+
+	spin_lock_irq(&np->lock);
+
+	/* flag should be set within ISR */
+	testcnt = np->intr_test;
+	if (!testcnt)
+		ret = 2;
+
+	nv_disable_hw_interrupts(dev, NVREG_IRQ_TIMER);
+	if (!(np->msi_flags & NV_MSI_X_ENABLED))
+		writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus);
+	else
+		writel(NVREG_IRQSTAT_MASK, base + NvRegMSIXIrqStatus);
+
+	spin_unlock_irq(&np->lock);
+
+	nv_free_irq(dev);
+
+	np->msi_flags = save_msi_flags;
+
+	if (netif_running(dev)) {
+		writel(save_poll_interval, base + NvRegPollingInterval);
+		writel(NVREG_UNKSETUP6_VAL, base + NvRegUnknownSetupReg6);
+		/* restore original irq */
+		if (nv_request_irq(dev, 0))
+			return 0;
+	}
+
+	return ret;
+}
+
+static int nv_loopback_test(struct net_device *dev)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+	struct sk_buff *tx_skb, *rx_skb;
+	dma_addr_t test_dma_addr;
+	u32 tx_flags_extra = (np->desc_ver == DESC_VER_1 ? NV_TX_LASTPACKET : NV_TX2_LASTPACKET);
+	u32 flags;
+	int len, i, pkt_len;
+	u8 *pkt_data;
+	u32 filter_flags = 0;
+	u32 misc1_flags = 0;
+	int ret = 1;
+
+	if (netif_running(dev)) {
+		nv_disable_irq(dev);
+		filter_flags = readl(base + NvRegPacketFilterFlags);
+		misc1_flags = readl(base + NvRegMisc1);
+	} else {
+		nv_txrx_reset(dev);
+	}
+
+	/* reinit driver view of the rx queue */
+	set_bufsize(dev);
+	nv_init_ring(dev);
+
+	/* setup hardware for loopback */
+	writel(NVREG_MISC1_FORCE, base + NvRegMisc1);
+	writel(NVREG_PFF_ALWAYS | NVREG_PFF_LOOPBACK, base + NvRegPacketFilterFlags);
+
+	/* reinit nic view of the rx queue */
+	writel(np->rx_buf_sz, base + NvRegOffloadConfig);
+	setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING);
+	writel(((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT),
+		base + NvRegRingSizes);
+	pci_push(base);
+
+	/* restart rx engine */
+	nv_start_rxtx(dev);
+
+	/* setup packet for tx */
+	pkt_len = ETH_DATA_LEN;
+	tx_skb = netdev_alloc_skb(dev, pkt_len);
+	if (!tx_skb) {
+		ret = 0;
+		goto out;
+	}
+	test_dma_addr = dma_map_single(&np->pci_dev->dev, tx_skb->data,
+				       skb_tailroom(tx_skb),
+				       DMA_FROM_DEVICE);
+	if (unlikely(dma_mapping_error(&np->pci_dev->dev,
+				       test_dma_addr))) {
+		dev_kfree_skb_any(tx_skb);
+		goto out;
+	}
+	pkt_data = skb_put(tx_skb, pkt_len);
+	for (i = 0; i < pkt_len; i++)
+		pkt_data[i] = (u8)(i & 0xff);
+
+	if (!nv_optimized(np)) {
+		np->tx_ring.orig[0].buf = cpu_to_le32(test_dma_addr);
+		np->tx_ring.orig[0].flaglen = cpu_to_le32((pkt_len-1) | np->tx_flags | tx_flags_extra);
+	} else {
+		np->tx_ring.ex[0].bufhigh = cpu_to_le32(dma_high(test_dma_addr));
+		np->tx_ring.ex[0].buflow = cpu_to_le32(dma_low(test_dma_addr));
+		np->tx_ring.ex[0].flaglen = cpu_to_le32((pkt_len-1) | np->tx_flags | tx_flags_extra);
+	}
+	writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
+	pci_push(get_hwbase(dev));
+
+	msleep(500);
+
+	/* check for rx of the packet */
+	if (!nv_optimized(np)) {
+		flags = le32_to_cpu(np->rx_ring.orig[0].flaglen);
+		len = nv_descr_getlength(&np->rx_ring.orig[0], np->desc_ver);
+
+	} else {
+		flags = le32_to_cpu(np->rx_ring.ex[0].flaglen);
+		len = nv_descr_getlength_ex(&np->rx_ring.ex[0], np->desc_ver);
+	}
+
+	if (flags & NV_RX_AVAIL) {
+		ret = 0;
+	} else if (np->desc_ver == DESC_VER_1) {
+		if (flags & NV_RX_ERROR)
+			ret = 0;
+	} else {
+		if (flags & NV_RX2_ERROR)
+			ret = 0;
+	}
+
+	if (ret) {
+		if (len != pkt_len) {
+			ret = 0;
+		} else {
+			rx_skb = np->rx_skb[0].skb;
+			for (i = 0; i < pkt_len; i++) {
+				if (rx_skb->data[i] != (u8)(i & 0xff)) {
+					ret = 0;
+					break;
+				}
+			}
+		}
+	}
+
+	dma_unmap_single(&np->pci_dev->dev, test_dma_addr,
+			 (skb_end_pointer(tx_skb) - tx_skb->data),
+			 DMA_TO_DEVICE);
+	dev_kfree_skb_any(tx_skb);
+ out:
+	/* stop engines */
+	nv_stop_rxtx(dev);
+	nv_txrx_reset(dev);
+	/* drain rx queue */
+	nv_drain_rxtx(dev);
+
+	if (netif_running(dev)) {
+		writel(misc1_flags, base + NvRegMisc1);
+		writel(filter_flags, base + NvRegPacketFilterFlags);
+		nv_enable_irq(dev);
+	}
+
+	return ret;
+}
+
+static void nv_self_test(struct net_device *dev, struct ethtool_test *test, u64 *buffer)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+	int result, count;
+
+	count = nv_get_sset_count(dev, ETH_SS_TEST);
+	memset(buffer, 0, count * sizeof(u64));
+
+	if (!nv_link_test(dev)) {
+		test->flags |= ETH_TEST_FL_FAILED;
+		buffer[0] = 1;
+	}
+
+	if (test->flags & ETH_TEST_FL_OFFLINE) {
+		if (netif_running(dev)) {
+			netif_stop_queue(dev);
+			nv_napi_disable(dev);
+			netif_tx_lock_bh(dev);
+			netif_addr_lock(dev);
+			spin_lock_irq(&np->lock);
+			nv_disable_hw_interrupts(dev, np->irqmask);
+			if (!(np->msi_flags & NV_MSI_X_ENABLED))
+				writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus);
+			else
+				writel(NVREG_IRQSTAT_MASK, base + NvRegMSIXIrqStatus);
+			/* stop engines */
+			nv_stop_rxtx(dev);
+			nv_txrx_reset(dev);
+			/* drain rx queue */
+			nv_drain_rxtx(dev);
+			spin_unlock_irq(&np->lock);
+			netif_addr_unlock(dev);
+			netif_tx_unlock_bh(dev);
+		}
+
+		if (!nv_register_test(dev)) {
+			test->flags |= ETH_TEST_FL_FAILED;
+			buffer[1] = 1;
+		}
+
+		result = nv_interrupt_test(dev);
+		if (result != 1) {
+			test->flags |= ETH_TEST_FL_FAILED;
+			buffer[2] = 1;
+		}
+		if (result == 0) {
+			/* bail out */
+			return;
+		}
+
+		if (count > NV_TEST_COUNT_BASE && !nv_loopback_test(dev)) {
+			test->flags |= ETH_TEST_FL_FAILED;
+			buffer[3] = 1;
+		}
+
+		if (netif_running(dev)) {
+			/* reinit driver view of the rx queue */
+			set_bufsize(dev);
+			if (nv_init_ring(dev)) {
+				if (!np->in_shutdown)
+					mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
+			}
+			/* reinit nic view of the rx queue */
+			writel(np->rx_buf_sz, base + NvRegOffloadConfig);
+			setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING);
+			writel(((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT),
+				base + NvRegRingSizes);
+			pci_push(base);
+			writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
+			pci_push(base);
+			/* restart rx engine */
+			nv_start_rxtx(dev);
+			netif_start_queue(dev);
+			nv_napi_enable(dev);
+			nv_enable_hw_interrupts(dev, np->irqmask);
+		}
+	}
+}
+
+static void nv_get_strings(struct net_device *dev, u32 stringset, u8 *buffer)
+{
+	switch (stringset) {
+	case ETH_SS_STATS:
+		memcpy(buffer, &nv_estats_str, nv_get_sset_count(dev, ETH_SS_STATS)*sizeof(struct nv_ethtool_str));
+		break;
+	case ETH_SS_TEST:
+		memcpy(buffer, &nv_etests_str, nv_get_sset_count(dev, ETH_SS_TEST)*sizeof(struct nv_ethtool_str));
+		break;
+	}
+}
+
+static const struct ethtool_ops ops = {
+	.get_drvinfo = nv_get_drvinfo,
+	.get_link = ethtool_op_get_link,
+	.get_wol = nv_get_wol,
+	.set_wol = nv_set_wol,
+	.get_regs_len = nv_get_regs_len,
+	.get_regs = nv_get_regs,
+	.nway_reset = nv_nway_reset,
+	.get_ringparam = nv_get_ringparam,
+	.set_ringparam = nv_set_ringparam,
+	.get_pauseparam = nv_get_pauseparam,
+	.set_pauseparam = nv_set_pauseparam,
+	.get_strings = nv_get_strings,
+	.get_ethtool_stats = nv_get_ethtool_stats,
+	.get_sset_count = nv_get_sset_count,
+	.self_test = nv_self_test,
+	.get_ts_info = ethtool_op_get_ts_info,
+	.get_link_ksettings = nv_get_link_ksettings,
+	.set_link_ksettings = nv_set_link_ksettings,
+};
+
+/* The mgmt unit and driver use a semaphore to access the phy during init */
+static int nv_mgmt_acquire_sema(struct net_device *dev)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+	int i;
+	u32 tx_ctrl, mgmt_sema;
+
+	for (i = 0; i < 10; i++) {
+		mgmt_sema = readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_MGMT_SEMA_MASK;
+		if (mgmt_sema == NVREG_XMITCTL_MGMT_SEMA_FREE)
+			break;
+		msleep(500);
+	}
+
+	if (mgmt_sema != NVREG_XMITCTL_MGMT_SEMA_FREE)
+		return 0;
+
+	for (i = 0; i < 2; i++) {
+		tx_ctrl = readl(base + NvRegTransmitterControl);
+		tx_ctrl |= NVREG_XMITCTL_HOST_SEMA_ACQ;
+		writel(tx_ctrl, base + NvRegTransmitterControl);
+
+		/* verify that semaphore was acquired */
+		tx_ctrl = readl(base + NvRegTransmitterControl);
+		if (((tx_ctrl & NVREG_XMITCTL_HOST_SEMA_MASK) == NVREG_XMITCTL_HOST_SEMA_ACQ) &&
+		    ((tx_ctrl & NVREG_XMITCTL_MGMT_SEMA_MASK) == NVREG_XMITCTL_MGMT_SEMA_FREE)) {
+			np->mgmt_sema = 1;
+			return 1;
+		} else
+			udelay(50);
+	}
+
+	return 0;
+}
+
+static void nv_mgmt_release_sema(struct net_device *dev)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+	u32 tx_ctrl;
+
+	if (np->driver_data & DEV_HAS_MGMT_UNIT) {
+		if (np->mgmt_sema) {
+			tx_ctrl = readl(base + NvRegTransmitterControl);
+			tx_ctrl &= ~NVREG_XMITCTL_HOST_SEMA_ACQ;
+			writel(tx_ctrl, base + NvRegTransmitterControl);
+		}
+	}
+}
+
+
+static int nv_mgmt_get_version(struct net_device *dev)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+	u32 data_ready = readl(base + NvRegTransmitterControl);
+	u32 data_ready2 = 0;
+	unsigned long start;
+	int ready = 0;
+
+	writel(NVREG_MGMTUNITGETVERSION, base + NvRegMgmtUnitGetVersion);
+	writel(data_ready ^ NVREG_XMITCTL_DATA_START, base + NvRegTransmitterControl);
+	start = jiffies;
+	while (time_before(jiffies, start + 5*HZ)) {
+		data_ready2 = readl(base + NvRegTransmitterControl);
+		if ((data_ready & NVREG_XMITCTL_DATA_READY) != (data_ready2 & NVREG_XMITCTL_DATA_READY)) {
+			ready = 1;
+			break;
+		}
+		schedule_timeout_uninterruptible(1);
+	}
+
+	if (!ready || (data_ready2 & NVREG_XMITCTL_DATA_ERROR))
+		return 0;
+
+	np->mgmt_version = readl(base + NvRegMgmtUnitVersion) & NVREG_MGMTUNITVERSION;
+
+	return 1;
+}
+
+static int nv_open(struct net_device *dev)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+	int ret = 1;
+	int oom, i;
+	u32 low;
+
+	/* power up phy */
+	mii_rw(dev, np->phyaddr, MII_BMCR,
+	       mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ) & ~BMCR_PDOWN);
+
+	nv_txrx_gate(dev, false);
+	/* erase previous misconfiguration */
+	if (np->driver_data & DEV_HAS_POWER_CNTRL)
+		nv_mac_reset(dev);
+	writel(NVREG_MCASTADDRA_FORCE, base + NvRegMulticastAddrA);
+	writel(0, base + NvRegMulticastAddrB);
+	writel(NVREG_MCASTMASKA_NONE, base + NvRegMulticastMaskA);
+	writel(NVREG_MCASTMASKB_NONE, base + NvRegMulticastMaskB);
+	writel(0, base + NvRegPacketFilterFlags);
+
+	writel(0, base + NvRegTransmitterControl);
+	writel(0, base + NvRegReceiverControl);
+
+	writel(0, base + NvRegAdapterControl);
+
+	if (np->pause_flags & NV_PAUSEFRAME_TX_CAPABLE)
+		writel(NVREG_TX_PAUSEFRAME_DISABLE,  base + NvRegTxPauseFrame);
+
+	/* initialize descriptor rings */
+	set_bufsize(dev);
+	oom = nv_init_ring(dev);
+
+	writel(0, base + NvRegLinkSpeed);
+	writel(readl(base + NvRegTransmitPoll) & NVREG_TRANSMITPOLL_MAC_ADDR_REV, base + NvRegTransmitPoll);
+	nv_txrx_reset(dev);
+	writel(0, base + NvRegUnknownSetupReg6);
+
+	np->in_shutdown = 0;
+
+	/* give hw rings */
+	setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING);
+	writel(((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT),
+		base + NvRegRingSizes);
+
+	writel(np->linkspeed, base + NvRegLinkSpeed);
+	if (np->desc_ver == DESC_VER_1)
+		writel(NVREG_TX_WM_DESC1_DEFAULT, base + NvRegTxWatermark);
+	else
+		writel(NVREG_TX_WM_DESC2_3_DEFAULT, base + NvRegTxWatermark);
+	writel(np->txrxctl_bits, base + NvRegTxRxControl);
+	writel(np->vlanctl_bits, base + NvRegVlanControl);
+	pci_push(base);
+	writel(NVREG_TXRXCTL_BIT1|np->txrxctl_bits, base + NvRegTxRxControl);
+	if (reg_delay(dev, NvRegUnknownSetupReg5,
+		      NVREG_UNKSETUP5_BIT31, NVREG_UNKSETUP5_BIT31,
+		      NV_SETUP5_DELAY, NV_SETUP5_DELAYMAX))
+		netdev_info(dev,
+			    "%s: SetupReg5, Bit 31 remained off\n", __func__);
+
+	writel(0, base + NvRegMIIMask);
+	writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus);
+	writel(NVREG_MIISTAT_MASK_ALL, base + NvRegMIIStatus);
+
+	writel(NVREG_MISC1_FORCE | NVREG_MISC1_HD, base + NvRegMisc1);
+	writel(readl(base + NvRegTransmitterStatus), base + NvRegTransmitterStatus);
+	writel(NVREG_PFF_ALWAYS, base + NvRegPacketFilterFlags);
+	writel(np->rx_buf_sz, base + NvRegOffloadConfig);
+
+	writel(readl(base + NvRegReceiverStatus), base + NvRegReceiverStatus);
+
+	get_random_bytes(&low, sizeof(low));
+	low &= NVREG_SLOTTIME_MASK;
+	if (np->desc_ver == DESC_VER_1) {
+		writel(low|NVREG_SLOTTIME_DEFAULT, base + NvRegSlotTime);
+	} else {
+		if (!(np->driver_data & DEV_HAS_GEAR_MODE)) {
+			/* setup legacy backoff */
+			writel(NVREG_SLOTTIME_LEGBF_ENABLED|NVREG_SLOTTIME_10_100_FULL|low, base + NvRegSlotTime);
+		} else {
+			writel(NVREG_SLOTTIME_10_100_FULL, base + NvRegSlotTime);
+			nv_gear_backoff_reseed(dev);
+		}
+	}
+	writel(NVREG_TX_DEFERRAL_DEFAULT, base + NvRegTxDeferral);
+	writel(NVREG_RX_DEFERRAL_DEFAULT, base + NvRegRxDeferral);
+	if (poll_interval == -1) {
+		if (optimization_mode == NV_OPTIMIZATION_MODE_THROUGHPUT)
+			writel(NVREG_POLL_DEFAULT_THROUGHPUT, base + NvRegPollingInterval);
+		else
+			writel(NVREG_POLL_DEFAULT_CPU, base + NvRegPollingInterval);
+	} else
+		writel(poll_interval & 0xFFFF, base + NvRegPollingInterval);
+	writel(NVREG_UNKSETUP6_VAL, base + NvRegUnknownSetupReg6);
+	writel((np->phyaddr << NVREG_ADAPTCTL_PHYSHIFT)|NVREG_ADAPTCTL_PHYVALID|NVREG_ADAPTCTL_RUNNING,
+			base + NvRegAdapterControl);
+	writel(NVREG_MIISPEED_BIT8|NVREG_MIIDELAY, base + NvRegMIISpeed);
+	writel(NVREG_MII_LINKCHANGE, base + NvRegMIIMask);
+	if (np->wolenabled)
+		writel(NVREG_WAKEUPFLAGS_ENABLE , base + NvRegWakeUpFlags);
+
+	i = readl(base + NvRegPowerState);
+	if ((i & NVREG_POWERSTATE_POWEREDUP) == 0)
+		writel(NVREG_POWERSTATE_POWEREDUP|i, base + NvRegPowerState);
+
+	pci_push(base);
+	udelay(10);
+	writel(readl(base + NvRegPowerState) | NVREG_POWERSTATE_VALID, base + NvRegPowerState);
+
+	nv_disable_hw_interrupts(dev, np->irqmask);
+	pci_push(base);
+	writel(NVREG_MIISTAT_MASK_ALL, base + NvRegMIIStatus);
+	writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus);
+	pci_push(base);
+
+	if (nv_request_irq(dev, 0))
+		goto out_drain;
+
+	/* ask for interrupts */
+	nv_enable_hw_interrupts(dev, np->irqmask);
+
+	spin_lock_irq(&np->lock);
+	writel(NVREG_MCASTADDRA_FORCE, base + NvRegMulticastAddrA);
+	writel(0, base + NvRegMulticastAddrB);
+	writel(NVREG_MCASTMASKA_NONE, base + NvRegMulticastMaskA);
+	writel(NVREG_MCASTMASKB_NONE, base + NvRegMulticastMaskB);
+	writel(NVREG_PFF_ALWAYS|NVREG_PFF_MYADDR, base + NvRegPacketFilterFlags);
+	/* One manual link speed update: Interrupts are enabled, future link
+	 * speed changes cause interrupts and are handled by nv_link_irq().
+	 */
+	readl(base + NvRegMIIStatus);
+	writel(NVREG_MIISTAT_MASK_ALL, base + NvRegMIIStatus);
+
+	/* set linkspeed to invalid value, thus force nv_update_linkspeed
+	 * to init hw */
+	np->linkspeed = 0;
+	ret = nv_update_linkspeed(dev);
+	nv_start_rxtx(dev);
+	netif_start_queue(dev);
+	nv_napi_enable(dev);
+
+	if (ret) {
+		netif_carrier_on(dev);
+	} else {
+		netdev_info(dev, "no link during initialization\n");
+		netif_carrier_off(dev);
+	}
+	if (oom)
+		mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
+
+	/* start statistics timer */
+	if (np->driver_data & (DEV_HAS_STATISTICS_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_STATISTICS_V3))
+		mod_timer(&np->stats_poll,
+			round_jiffies(jiffies + STATS_INTERVAL));
+
+	spin_unlock_irq(&np->lock);
+
+	/* If the loopback feature was set while the device was down, make sure
+	 * that it's set correctly now.
+	 */
+	if (dev->features & NETIF_F_LOOPBACK)
+		nv_set_loopback(dev, dev->features);
+
+	return 0;
+out_drain:
+	nv_drain_rxtx(dev);
+	return ret;
+}
+
+static int nv_close(struct net_device *dev)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base;
+
+	spin_lock_irq(&np->lock);
+	np->in_shutdown = 1;
+	spin_unlock_irq(&np->lock);
+	nv_napi_disable(dev);
+	synchronize_irq(np->pci_dev->irq);
+
+	del_timer_sync(&np->oom_kick);
+	del_timer_sync(&np->nic_poll);
+	del_timer_sync(&np->stats_poll);
+
+	netif_stop_queue(dev);
+	spin_lock_irq(&np->lock);
+	nv_update_pause(dev, 0); /* otherwise stop_tx bricks NIC */
+	nv_stop_rxtx(dev);
+	nv_txrx_reset(dev);
+
+	/* disable interrupts on the nic or we will lock up */
+	base = get_hwbase(dev);
+	nv_disable_hw_interrupts(dev, np->irqmask);
+	pci_push(base);
+
+	spin_unlock_irq(&np->lock);
+
+	nv_free_irq(dev);
+
+	nv_drain_rxtx(dev);
+
+	if (np->wolenabled || !phy_power_down) {
+		nv_txrx_gate(dev, false);
+		writel(NVREG_PFF_ALWAYS|NVREG_PFF_MYADDR, base + NvRegPacketFilterFlags);
+		nv_start_rx(dev);
+	} else {
+		/* power down phy */
+		mii_rw(dev, np->phyaddr, MII_BMCR,
+		       mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ)|BMCR_PDOWN);
+		nv_txrx_gate(dev, true);
+	}
+
+	/* FIXME: power down nic */
+
+	return 0;
+}
+
+static const struct net_device_ops nv_netdev_ops = {
+	.ndo_open		= nv_open,
+	.ndo_stop		= nv_close,
+	.ndo_get_stats64	= nv_get_stats64,
+	.ndo_start_xmit		= nv_start_xmit,
+	.ndo_tx_timeout		= nv_tx_timeout,
+	.ndo_change_mtu		= nv_change_mtu,
+	.ndo_fix_features	= nv_fix_features,
+	.ndo_set_features	= nv_set_features,
+	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_set_mac_address	= nv_set_mac_address,
+	.ndo_set_rx_mode	= nv_set_multicast,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+	.ndo_poll_controller	= nv_poll_controller,
+#endif
+};
+
+static const struct net_device_ops nv_netdev_ops_optimized = {
+	.ndo_open		= nv_open,
+	.ndo_stop		= nv_close,
+	.ndo_get_stats64	= nv_get_stats64,
+	.ndo_start_xmit		= nv_start_xmit_optimized,
+	.ndo_tx_timeout		= nv_tx_timeout,
+	.ndo_change_mtu		= nv_change_mtu,
+	.ndo_fix_features	= nv_fix_features,
+	.ndo_set_features	= nv_set_features,
+	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_set_mac_address	= nv_set_mac_address,
+	.ndo_set_rx_mode	= nv_set_multicast,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+	.ndo_poll_controller	= nv_poll_controller,
+#endif
+};
+
+static int nv_probe(struct pci_dev *pci_dev, const struct pci_device_id *id)
+{
+	struct net_device *dev;
+	struct fe_priv *np;
+	unsigned long addr;
+	u8 __iomem *base;
+	int err, i;
+	u32 powerstate, txreg;
+	u32 phystate_orig = 0, phystate;
+	int phyinitialized = 0;
+	static int printed_version;
+
+	if (!printed_version++)
+		pr_info("Reverse Engineered nForce ethernet driver. Version %s.\n",
+			FORCEDETH_VERSION);
+
+	dev = alloc_etherdev(sizeof(struct fe_priv));
+	err = -ENOMEM;
+	if (!dev)
+		goto out;
+
+	np = netdev_priv(dev);
+	np->dev = dev;
+	np->pci_dev = pci_dev;
+	spin_lock_init(&np->lock);
+	spin_lock_init(&np->hwstats_lock);
+	SET_NETDEV_DEV(dev, &pci_dev->dev);
+	u64_stats_init(&np->swstats_rx_syncp);
+	u64_stats_init(&np->swstats_tx_syncp);
+	np->txrx_stats = alloc_percpu(struct nv_txrx_stats);
+	if (!np->txrx_stats) {
+		pr_err("np->txrx_stats, alloc memory error.\n");
+		err = -ENOMEM;
+		goto out_alloc_percpu;
+	}
+
+	timer_setup(&np->oom_kick, nv_do_rx_refill, 0);
+	timer_setup(&np->nic_poll, nv_do_nic_poll, 0);
+	timer_setup(&np->stats_poll, nv_do_stats_poll, TIMER_DEFERRABLE);
+
+	err = pci_enable_device(pci_dev);
+	if (err)
+		goto out_free;
+
+	pci_set_master(pci_dev);
+
+	err = pci_request_regions(pci_dev, DRV_NAME);
+	if (err < 0)
+		goto out_disable;
+
+	if (id->driver_data & (DEV_HAS_VLAN|DEV_HAS_MSI_X|DEV_HAS_POWER_CNTRL|DEV_HAS_STATISTICS_V2|DEV_HAS_STATISTICS_V3))
+		np->register_size = NV_PCI_REGSZ_VER3;
+	else if (id->driver_data & DEV_HAS_STATISTICS_V1)
+		np->register_size = NV_PCI_REGSZ_VER2;
+	else
+		np->register_size = NV_PCI_REGSZ_VER1;
+
+	err = -EINVAL;
+	addr = 0;
+	for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
+		if (pci_resource_flags(pci_dev, i) & IORESOURCE_MEM &&
+				pci_resource_len(pci_dev, i) >= np->register_size) {
+			addr = pci_resource_start(pci_dev, i);
+			break;
+		}
+	}
+	if (i == DEVICE_COUNT_RESOURCE) {
+		dev_info(&pci_dev->dev, "Couldn't find register window\n");
+		goto out_relreg;
+	}
+
+	/* copy of driver data */
+	np->driver_data = id->driver_data;
+	/* copy of device id */
+	np->device_id = id->device;
+
+	/* handle different descriptor versions */
+	if (id->driver_data & DEV_HAS_HIGH_DMA) {
+		/* packet format 3: supports 40-bit addressing */
+		np->desc_ver = DESC_VER_3;
+		np->txrxctl_bits = NVREG_TXRXCTL_DESC_3;
+		if (dma_64bit) {
+			if (pci_set_dma_mask(pci_dev, DMA_BIT_MASK(39)))
+				dev_info(&pci_dev->dev,
+					 "64-bit DMA failed, using 32-bit addressing\n");
+			else
+				dev->features |= NETIF_F_HIGHDMA;
+			if (pci_set_consistent_dma_mask(pci_dev, DMA_BIT_MASK(39))) {
+				dev_info(&pci_dev->dev,
+					 "64-bit DMA (consistent) failed, using 32-bit ring buffers\n");
+			}
+		}
+	} else if (id->driver_data & DEV_HAS_LARGEDESC) {
+		/* packet format 2: supports jumbo frames */
+		np->desc_ver = DESC_VER_2;
+		np->txrxctl_bits = NVREG_TXRXCTL_DESC_2;
+	} else {
+		/* original packet format */
+		np->desc_ver = DESC_VER_1;
+		np->txrxctl_bits = NVREG_TXRXCTL_DESC_1;
+	}
+
+	np->pkt_limit = NV_PKTLIMIT_1;
+	if (id->driver_data & DEV_HAS_LARGEDESC)
+		np->pkt_limit = NV_PKTLIMIT_2;
+
+	if (id->driver_data & DEV_HAS_CHECKSUM) {
+		np->txrxctl_bits |= NVREG_TXRXCTL_RXCHECK;
+		dev->hw_features |= NETIF_F_IP_CSUM | NETIF_F_SG |
+			NETIF_F_TSO | NETIF_F_RXCSUM;
+	}
+
+	np->vlanctl_bits = 0;
+	if (id->driver_data & DEV_HAS_VLAN) {
+		np->vlanctl_bits = NVREG_VLANCONTROL_ENABLE;
+		dev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX |
+				    NETIF_F_HW_VLAN_CTAG_TX;
+	}
+
+	dev->features |= dev->hw_features;
+
+	/* Add loopback capability to the device. */
+	dev->hw_features |= NETIF_F_LOOPBACK;
+
+	/* MTU range: 64 - 1500 or 9100 */
+	dev->min_mtu = ETH_ZLEN + ETH_FCS_LEN;
+	dev->max_mtu = np->pkt_limit;
+
+	np->pause_flags = NV_PAUSEFRAME_RX_CAPABLE | NV_PAUSEFRAME_RX_REQ | NV_PAUSEFRAME_AUTONEG;
+	if ((id->driver_data & DEV_HAS_PAUSEFRAME_TX_V1) ||
+	    (id->driver_data & DEV_HAS_PAUSEFRAME_TX_V2) ||
+	    (id->driver_data & DEV_HAS_PAUSEFRAME_TX_V3)) {
+		np->pause_flags |= NV_PAUSEFRAME_TX_CAPABLE | NV_PAUSEFRAME_TX_REQ;
+	}
+
+	err = -ENOMEM;
+	np->base = ioremap(addr, np->register_size);
+	if (!np->base)
+		goto out_relreg;
+
+	np->rx_ring_size = RX_RING_DEFAULT;
+	np->tx_ring_size = TX_RING_DEFAULT;
+
+	if (!nv_optimized(np)) {
+		np->rx_ring.orig = dma_alloc_coherent(&pci_dev->dev,
+						      sizeof(struct ring_desc) *
+						      (np->rx_ring_size +
+						      np->tx_ring_size),
+						      &np->ring_addr,
+						      GFP_KERNEL);
+		if (!np->rx_ring.orig)
+			goto out_unmap;
+		np->tx_ring.orig = &np->rx_ring.orig[np->rx_ring_size];
+	} else {
+		np->rx_ring.ex = dma_alloc_coherent(&pci_dev->dev,
+						    sizeof(struct ring_desc_ex) *
+						    (np->rx_ring_size +
+						    np->tx_ring_size),
+						    &np->ring_addr, GFP_KERNEL);
+		if (!np->rx_ring.ex)
+			goto out_unmap;
+		np->tx_ring.ex = &np->rx_ring.ex[np->rx_ring_size];
+	}
+	np->rx_skb = kcalloc(np->rx_ring_size, sizeof(struct nv_skb_map), GFP_KERNEL);
+	np->tx_skb = kcalloc(np->tx_ring_size, sizeof(struct nv_skb_map), GFP_KERNEL);
+	if (!np->rx_skb || !np->tx_skb)
+		goto out_freering;
+
+	if (!nv_optimized(np))
+		dev->netdev_ops = &nv_netdev_ops;
+	else
+		dev->netdev_ops = &nv_netdev_ops_optimized;
+
+	netif_napi_add(dev, &np->napi, nv_napi_poll, RX_WORK_PER_LOOP);
+	dev->ethtool_ops = &ops;
+	dev->watchdog_timeo = NV_WATCHDOG_TIMEO;
+
+	pci_set_drvdata(pci_dev, dev);
+
+	/* read the mac address */
+	base = get_hwbase(dev);
+	np->orig_mac[0] = readl(base + NvRegMacAddrA);
+	np->orig_mac[1] = readl(base + NvRegMacAddrB);
+
+	/* check the workaround bit for correct mac address order */
+	txreg = readl(base + NvRegTransmitPoll);
+	if (id->driver_data & DEV_HAS_CORRECT_MACADDR) {
+		/* mac address is already in correct order */
+		dev->dev_addr[0] = (np->orig_mac[0] >>  0) & 0xff;
+		dev->dev_addr[1] = (np->orig_mac[0] >>  8) & 0xff;
+		dev->dev_addr[2] = (np->orig_mac[0] >> 16) & 0xff;
+		dev->dev_addr[3] = (np->orig_mac[0] >> 24) & 0xff;
+		dev->dev_addr[4] = (np->orig_mac[1] >>  0) & 0xff;
+		dev->dev_addr[5] = (np->orig_mac[1] >>  8) & 0xff;
+	} else if (txreg & NVREG_TRANSMITPOLL_MAC_ADDR_REV) {
+		/* mac address is already in correct order */
+		dev->dev_addr[0] = (np->orig_mac[0] >>  0) & 0xff;
+		dev->dev_addr[1] = (np->orig_mac[0] >>  8) & 0xff;
+		dev->dev_addr[2] = (np->orig_mac[0] >> 16) & 0xff;
+		dev->dev_addr[3] = (np->orig_mac[0] >> 24) & 0xff;
+		dev->dev_addr[4] = (np->orig_mac[1] >>  0) & 0xff;
+		dev->dev_addr[5] = (np->orig_mac[1] >>  8) & 0xff;
+		/*
+		 * Set orig mac address back to the reversed version.
+		 * This flag will be cleared during low power transition.
+		 * Therefore, we should always put back the reversed address.
+		 */
+		np->orig_mac[0] = (dev->dev_addr[5] << 0) + (dev->dev_addr[4] << 8) +
+			(dev->dev_addr[3] << 16) + (dev->dev_addr[2] << 24);
+		np->orig_mac[1] = (dev->dev_addr[1] << 0) + (dev->dev_addr[0] << 8);
+	} else {
+		/* need to reverse mac address to correct order */
+		dev->dev_addr[0] = (np->orig_mac[1] >>  8) & 0xff;
+		dev->dev_addr[1] = (np->orig_mac[1] >>  0) & 0xff;
+		dev->dev_addr[2] = (np->orig_mac[0] >> 24) & 0xff;
+		dev->dev_addr[3] = (np->orig_mac[0] >> 16) & 0xff;
+		dev->dev_addr[4] = (np->orig_mac[0] >>  8) & 0xff;
+		dev->dev_addr[5] = (np->orig_mac[0] >>  0) & 0xff;
+		writel(txreg|NVREG_TRANSMITPOLL_MAC_ADDR_REV, base + NvRegTransmitPoll);
+		dev_dbg(&pci_dev->dev,
+			"%s: set workaround bit for reversed mac addr\n",
+			__func__);
+	}
+
+	if (!is_valid_ether_addr(dev->dev_addr)) {
+		/*
+		 * Bad mac address. At least one bios sets the mac address
+		 * to 01:23:45:67:89:ab
+		 */
+		dev_err(&pci_dev->dev,
+			"Invalid MAC address detected: %pM - Please complain to your hardware vendor.\n",
+			dev->dev_addr);
+		eth_hw_addr_random(dev);
+		dev_err(&pci_dev->dev,
+			"Using random MAC address: %pM\n", dev->dev_addr);
+	}
+
+	/* set mac address */
+	nv_copy_mac_to_hw(dev);
+
+	/* disable WOL */
+	writel(0, base + NvRegWakeUpFlags);
+	np->wolenabled = 0;
+	device_set_wakeup_enable(&pci_dev->dev, false);
+
+	if (id->driver_data & DEV_HAS_POWER_CNTRL) {
+
+		/* take phy and nic out of low power mode */
+		powerstate = readl(base + NvRegPowerState2);
+		powerstate &= ~NVREG_POWERSTATE2_POWERUP_MASK;
+		if ((id->driver_data & DEV_NEED_LOW_POWER_FIX) &&
+		    pci_dev->revision >= 0xA3)
+			powerstate |= NVREG_POWERSTATE2_POWERUP_REV_A3;
+		writel(powerstate, base + NvRegPowerState2);
+	}
+
+	if (np->desc_ver == DESC_VER_1)
+		np->tx_flags = NV_TX_VALID;
+	else
+		np->tx_flags = NV_TX2_VALID;
+
+	np->msi_flags = 0;
+	if ((id->driver_data & DEV_HAS_MSI) && msi)
+		np->msi_flags |= NV_MSI_CAPABLE;
+
+	if ((id->driver_data & DEV_HAS_MSI_X) && msix) {
+		/* msix has had reported issues when modifying irqmask
+		   as in the case of napi, therefore, disable for now
+		*/
+#if 0
+		np->msi_flags |= NV_MSI_X_CAPABLE;
+#endif
+	}
+
+	if (optimization_mode == NV_OPTIMIZATION_MODE_CPU) {
+		np->irqmask = NVREG_IRQMASK_CPU;
+		if (np->msi_flags & NV_MSI_X_CAPABLE) /* set number of vectors */
+			np->msi_flags |= 0x0001;
+	} else if (optimization_mode == NV_OPTIMIZATION_MODE_DYNAMIC &&
+		   !(id->driver_data & DEV_NEED_TIMERIRQ)) {
+		/* start off in throughput mode */
+		np->irqmask = NVREG_IRQMASK_THROUGHPUT;
+		/* remove support for msix mode */
+		np->msi_flags &= ~NV_MSI_X_CAPABLE;
+	} else {
+		optimization_mode = NV_OPTIMIZATION_MODE_THROUGHPUT;
+		np->irqmask = NVREG_IRQMASK_THROUGHPUT;
+		if (np->msi_flags & NV_MSI_X_CAPABLE) /* set number of vectors */
+			np->msi_flags |= 0x0003;
+	}
+
+	if (id->driver_data & DEV_NEED_TIMERIRQ)
+		np->irqmask |= NVREG_IRQ_TIMER;
+	if (id->driver_data & DEV_NEED_LINKTIMER) {
+		np->need_linktimer = 1;
+		np->link_timeout = jiffies + LINK_TIMEOUT;
+	} else {
+		np->need_linktimer = 0;
+	}
+
+	/* Limit the number of tx's outstanding for hw bug */
+	if (id->driver_data & DEV_NEED_TX_LIMIT) {
+		np->tx_limit = 1;
+		if (((id->driver_data & DEV_NEED_TX_LIMIT2) == DEV_NEED_TX_LIMIT2) &&
+		    pci_dev->revision >= 0xA2)
+			np->tx_limit = 0;
+	}
+
+	/* clear phy state and temporarily halt phy interrupts */
+	writel(0, base + NvRegMIIMask);
+	phystate = readl(base + NvRegAdapterControl);
+	if (phystate & NVREG_ADAPTCTL_RUNNING) {
+		phystate_orig = 1;
+		phystate &= ~NVREG_ADAPTCTL_RUNNING;
+		writel(phystate, base + NvRegAdapterControl);
+	}
+	writel(NVREG_MIISTAT_MASK_ALL, base + NvRegMIIStatus);
+
+	if (id->driver_data & DEV_HAS_MGMT_UNIT) {
+		/* management unit running on the mac? */
+		if ((readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_MGMT_ST) &&
+		    (readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_SYNC_PHY_INIT) &&
+		    nv_mgmt_acquire_sema(dev) &&
+		    nv_mgmt_get_version(dev)) {
+			np->mac_in_use = 1;
+			if (np->mgmt_version > 0)
+				np->mac_in_use = readl(base + NvRegMgmtUnitControl) & NVREG_MGMTUNITCONTROL_INUSE;
+			/* management unit setup the phy already? */
+			if (np->mac_in_use &&
+			    ((readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_SYNC_MASK) ==
+			     NVREG_XMITCTL_SYNC_PHY_INIT)) {
+				/* phy is inited by mgmt unit */
+				phyinitialized = 1;
+			} else {
+				/* we need to init the phy */
+			}
+		}
+	}
+
+	/* find a suitable phy */
+	for (i = 1; i <= 32; i++) {
+		int id1, id2;
+		int phyaddr = i & 0x1F;
+
+		spin_lock_irq(&np->lock);
+		id1 = mii_rw(dev, phyaddr, MII_PHYSID1, MII_READ);
+		spin_unlock_irq(&np->lock);
+		if (id1 < 0 || id1 == 0xffff)
+			continue;
+		spin_lock_irq(&np->lock);
+		id2 = mii_rw(dev, phyaddr, MII_PHYSID2, MII_READ);
+		spin_unlock_irq(&np->lock);
+		if (id2 < 0 || id2 == 0xffff)
+			continue;
+
+		np->phy_model = id2 & PHYID2_MODEL_MASK;
+		id1 = (id1 & PHYID1_OUI_MASK) << PHYID1_OUI_SHFT;
+		id2 = (id2 & PHYID2_OUI_MASK) >> PHYID2_OUI_SHFT;
+		np->phyaddr = phyaddr;
+		np->phy_oui = id1 | id2;
+
+		/* Realtek hardcoded phy id1 to all zero's on certain phys */
+		if (np->phy_oui == PHY_OUI_REALTEK2)
+			np->phy_oui = PHY_OUI_REALTEK;
+		/* Setup phy revision for Realtek */
+		if (np->phy_oui == PHY_OUI_REALTEK && np->phy_model == PHY_MODEL_REALTEK_8211)
+			np->phy_rev = mii_rw(dev, phyaddr, MII_RESV1, MII_READ) & PHY_REV_MASK;
+
+		break;
+	}
+	if (i == 33) {
+		dev_info(&pci_dev->dev, "open: Could not find a valid PHY\n");
+		goto out_error;
+	}
+
+	if (!phyinitialized) {
+		/* reset it */
+		phy_init(dev);
+	} else {
+		/* see if it is a gigabit phy */
+		u32 mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
+		if (mii_status & PHY_GIGABIT)
+			np->gigabit = PHY_GIGABIT;
+	}
+
+	/* set default link speed settings */
+	np->linkspeed = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
+	np->duplex = 0;
+	np->autoneg = 1;
+
+	err = register_netdev(dev);
+	if (err) {
+		dev_info(&pci_dev->dev, "unable to register netdev: %d\n", err);
+		goto out_error;
+	}
+
+	netif_carrier_off(dev);
+
+	/* Some NICs freeze when TX pause is enabled while NIC is
+	 * down, and this stays across warm reboots. The sequence
+	 * below should be enough to recover from that state.
+	 */
+	nv_update_pause(dev, 0);
+	nv_start_tx(dev);
+	nv_stop_tx(dev);
+
+	if (id->driver_data & DEV_HAS_VLAN)
+		nv_vlan_mode(dev, dev->features);
+
+	dev_info(&pci_dev->dev, "ifname %s, PHY OUI 0x%x @ %d, addr %pM\n",
+		 dev->name, np->phy_oui, np->phyaddr, dev->dev_addr);
+
+	dev_info(&pci_dev->dev, "%s%s%s%s%s%s%s%s%s%s%sdesc-v%u\n",
+		 dev->features & NETIF_F_HIGHDMA ? "highdma " : "",
+		 dev->features & (NETIF_F_IP_CSUM | NETIF_F_SG) ?
+			"csum " : "",
+		 dev->features & (NETIF_F_HW_VLAN_CTAG_RX |
+				  NETIF_F_HW_VLAN_CTAG_TX) ?
+			"vlan " : "",
+		 dev->features & (NETIF_F_LOOPBACK) ?
+			"loopback " : "",
+		 id->driver_data & DEV_HAS_POWER_CNTRL ? "pwrctl " : "",
+		 id->driver_data & DEV_HAS_MGMT_UNIT ? "mgmt " : "",
+		 id->driver_data & DEV_NEED_TIMERIRQ ? "timirq " : "",
+		 np->gigabit == PHY_GIGABIT ? "gbit " : "",
+		 np->need_linktimer ? "lnktim " : "",
+		 np->msi_flags & NV_MSI_CAPABLE ? "msi " : "",
+		 np->msi_flags & NV_MSI_X_CAPABLE ? "msi-x " : "",
+		 np->desc_ver);
+
+	return 0;
+
+out_error:
+	nv_mgmt_release_sema(dev);
+	if (phystate_orig)
+		writel(phystate|NVREG_ADAPTCTL_RUNNING, base + NvRegAdapterControl);
+out_freering:
+	free_rings(dev);
+out_unmap:
+	iounmap(get_hwbase(dev));
+out_relreg:
+	pci_release_regions(pci_dev);
+out_disable:
+	pci_disable_device(pci_dev);
+out_free:
+	free_percpu(np->txrx_stats);
+out_alloc_percpu:
+	free_netdev(dev);
+out:
+	return err;
+}
+
+static void nv_restore_phy(struct net_device *dev)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u16 phy_reserved, mii_control;
+
+	if (np->phy_oui == PHY_OUI_REALTEK &&
+	    np->phy_model == PHY_MODEL_REALTEK_8201 &&
+	    phy_cross == NV_CROSSOVER_DETECTION_DISABLED) {
+		mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT3);
+		phy_reserved = mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG2, MII_READ);
+		phy_reserved &= ~PHY_REALTEK_INIT_MSK1;
+		phy_reserved |= PHY_REALTEK_INIT8;
+		mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG2, phy_reserved);
+		mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1);
+
+		/* restart auto negotiation */
+		mii_control = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
+		mii_control |= (BMCR_ANRESTART | BMCR_ANENABLE);
+		mii_rw(dev, np->phyaddr, MII_BMCR, mii_control);
+	}
+}
+
+static void nv_restore_mac_addr(struct pci_dev *pci_dev)
+{
+	struct net_device *dev = pci_get_drvdata(pci_dev);
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+
+	/* special op: write back the misordered MAC address - otherwise
+	 * the next nv_probe would see a wrong address.
+	 */
+	writel(np->orig_mac[0], base + NvRegMacAddrA);
+	writel(np->orig_mac[1], base + NvRegMacAddrB);
+	writel(readl(base + NvRegTransmitPoll) & ~NVREG_TRANSMITPOLL_MAC_ADDR_REV,
+	       base + NvRegTransmitPoll);
+}
+
+static void nv_remove(struct pci_dev *pci_dev)
+{
+	struct net_device *dev = pci_get_drvdata(pci_dev);
+	struct fe_priv *np = netdev_priv(dev);
+
+	free_percpu(np->txrx_stats);
+
+	unregister_netdev(dev);
+
+	nv_restore_mac_addr(pci_dev);
+
+	/* restore any phy related changes */
+	nv_restore_phy(dev);
+
+	nv_mgmt_release_sema(dev);
+
+	/* free all structures */
+	free_rings(dev);
+	iounmap(get_hwbase(dev));
+	pci_release_regions(pci_dev);
+	pci_disable_device(pci_dev);
+	free_netdev(dev);
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int nv_suspend(struct device *device)
+{
+	struct net_device *dev = dev_get_drvdata(device);
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+	int i;
+
+	if (netif_running(dev)) {
+		/* Gross. */
+		nv_close(dev);
+	}
+	netif_device_detach(dev);
+
+	/* save non-pci configuration space */
+	for (i = 0; i <= np->register_size/sizeof(u32); i++)
+		np->saved_config_space[i] = readl(base + i*sizeof(u32));
+
+	return 0;
+}
+
+static int nv_resume(struct device *device)
+{
+	struct pci_dev *pdev = to_pci_dev(device);
+	struct net_device *dev = pci_get_drvdata(pdev);
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+	int i, rc = 0;
+
+	/* restore non-pci configuration space */
+	for (i = 0; i <= np->register_size/sizeof(u32); i++)
+		writel(np->saved_config_space[i], base+i*sizeof(u32));
+
+	if (np->driver_data & DEV_NEED_MSI_FIX)
+		pci_write_config_dword(pdev, NV_MSI_PRIV_OFFSET, NV_MSI_PRIV_VALUE);
+
+	/* restore phy state, including autoneg */
+	phy_init(dev);
+
+	netif_device_attach(dev);
+	if (netif_running(dev)) {
+		rc = nv_open(dev);
+		nv_set_multicast(dev);
+	}
+	return rc;
+}
+
+static SIMPLE_DEV_PM_OPS(nv_pm_ops, nv_suspend, nv_resume);
+#define NV_PM_OPS (&nv_pm_ops)
+
+#else
+#define NV_PM_OPS NULL
+#endif /* CONFIG_PM_SLEEP */
+
+#ifdef CONFIG_PM
+static void nv_shutdown(struct pci_dev *pdev)
+{
+	struct net_device *dev = pci_get_drvdata(pdev);
+	struct fe_priv *np = netdev_priv(dev);
+
+	if (netif_running(dev))
+		nv_close(dev);
+
+	/*
+	 * Restore the MAC so a kernel started by kexec won't get confused.
+	 * If we really go for poweroff, we must not restore the MAC,
+	 * otherwise the MAC for WOL will be reversed at least on some boards.
+	 */
+	if (system_state != SYSTEM_POWER_OFF)
+		nv_restore_mac_addr(pdev);
+
+	pci_disable_device(pdev);
+	/*
+	 * Apparently it is not possible to reinitialise from D3 hot,
+	 * only put the device into D3 if we really go for poweroff.
+	 */
+	if (system_state == SYSTEM_POWER_OFF) {
+		pci_wake_from_d3(pdev, np->wolenabled);
+		pci_set_power_state(pdev, PCI_D3hot);
+	}
+}
+#else
+#define nv_shutdown NULL
+#endif /* CONFIG_PM */
+
+static const struct pci_device_id pci_tbl[] = {
+	{	/* nForce Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x01C3),
+		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER,
+	},
+	{	/* nForce2 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x0066),
+		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER,
+	},
+	{	/* nForce3 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x00D6),
+		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER,
+	},
+	{	/* nForce3 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x0086),
+		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM,
+	},
+	{	/* nForce3 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x008C),
+		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM,
+	},
+	{	/* nForce3 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x00E6),
+		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM,
+	},
+	{	/* nForce3 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x00DF),
+		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM,
+	},
+	{	/* CK804 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x0056),
+		.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_STATISTICS_V1|DEV_NEED_TX_LIMIT,
+	},
+	{	/* CK804 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x0057),
+		.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_STATISTICS_V1|DEV_NEED_TX_LIMIT,
+	},
+	{	/* MCP04 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x0037),
+		.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_STATISTICS_V1|DEV_NEED_TX_LIMIT,
+	},
+	{	/* MCP04 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x0038),
+		.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_STATISTICS_V1|DEV_NEED_TX_LIMIT,
+	},
+	{	/* MCP51 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x0268),
+		.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_STATISTICS_V1|DEV_NEED_LOW_POWER_FIX,
+	},
+	{	/* MCP51 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x0269),
+		.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_STATISTICS_V1|DEV_NEED_LOW_POWER_FIX,
+	},
+	{	/* MCP55 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x0372),
+		.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_VLAN|DEV_HAS_MSI|DEV_HAS_MSI_X|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_NEED_TX_LIMIT|DEV_NEED_MSI_FIX,
+	},
+	{	/* MCP55 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x0373),
+		.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_VLAN|DEV_HAS_MSI|DEV_HAS_MSI_X|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_NEED_TX_LIMIT|DEV_NEED_MSI_FIX,
+	},
+	{	/* MCP61 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x03E5),
+		.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_NEED_MSI_FIX,
+	},
+	{	/* MCP61 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x03E6),
+		.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_NEED_MSI_FIX,
+	},
+	{	/* MCP61 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x03EE),
+		.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_NEED_MSI_FIX,
+	},
+	{	/* MCP61 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x03EF),
+		.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_NEED_MSI_FIX,
+	},
+	{	/* MCP65 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x0450),
+		.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE|DEV_NEED_MSI_FIX,
+	},
+	{	/* MCP65 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x0451),
+		.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE|DEV_NEED_MSI_FIX,
+	},
+	{	/* MCP65 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x0452),
+		.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE|DEV_NEED_MSI_FIX,
+	},
+	{	/* MCP65 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x0453),
+		.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE|DEV_NEED_MSI_FIX,
+	},
+	{	/* MCP67 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x054C),
+		.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_GEAR_MODE|DEV_NEED_MSI_FIX,
+	},
+	{	/* MCP67 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x054D),
+		.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_GEAR_MODE|DEV_NEED_MSI_FIX,
+	},
+	{	/* MCP67 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x054E),
+		.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_GEAR_MODE|DEV_NEED_MSI_FIX,
+	},
+	{	/* MCP67 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x054F),
+		.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_GEAR_MODE|DEV_NEED_MSI_FIX,
+	},
+	{	/* MCP73 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x07DC),
+		.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_HAS_GEAR_MODE|DEV_NEED_MSI_FIX,
+	},
+	{	/* MCP73 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x07DD),
+		.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_HAS_GEAR_MODE|DEV_NEED_MSI_FIX,
+	},
+	{	/* MCP73 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x07DE),
+		.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_HAS_GEAR_MODE|DEV_NEED_MSI_FIX,
+	},
+	{	/* MCP73 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x07DF),
+		.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V12|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_HAS_GEAR_MODE|DEV_NEED_MSI_FIX,
+	},
+	{	/* MCP77 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x0760),
+		.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V2|DEV_HAS_STATISTICS_V123|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT2|DEV_HAS_GEAR_MODE|DEV_NEED_PHY_INIT_FIX|DEV_NEED_MSI_FIX,
+	},
+	{	/* MCP77 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x0761),
+		.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V2|DEV_HAS_STATISTICS_V123|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT2|DEV_HAS_GEAR_MODE|DEV_NEED_PHY_INIT_FIX|DEV_NEED_MSI_FIX,
+	},
+	{	/* MCP77 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x0762),
+		.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V2|DEV_HAS_STATISTICS_V123|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT2|DEV_HAS_GEAR_MODE|DEV_NEED_PHY_INIT_FIX|DEV_NEED_MSI_FIX,
+	},
+	{	/* MCP77 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x0763),
+		.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V2|DEV_HAS_STATISTICS_V123|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT2|DEV_HAS_GEAR_MODE|DEV_NEED_PHY_INIT_FIX|DEV_NEED_MSI_FIX,
+	},
+	{	/* MCP79 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x0AB0),
+		.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V3|DEV_HAS_STATISTICS_V123|DEV_HAS_TEST_EXTENDED|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT2|DEV_HAS_GEAR_MODE|DEV_NEED_PHY_INIT_FIX|DEV_NEED_MSI_FIX,
+	},
+	{	/* MCP79 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x0AB1),
+		.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V3|DEV_HAS_STATISTICS_V123|DEV_HAS_TEST_EXTENDED|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT2|DEV_HAS_GEAR_MODE|DEV_NEED_PHY_INIT_FIX|DEV_NEED_MSI_FIX,
+	},
+	{	/* MCP79 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x0AB2),
+		.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V3|DEV_HAS_STATISTICS_V123|DEV_HAS_TEST_EXTENDED|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT2|DEV_HAS_GEAR_MODE|DEV_NEED_PHY_INIT_FIX|DEV_NEED_MSI_FIX,
+	},
+	{	/* MCP79 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x0AB3),
+		.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V3|DEV_HAS_STATISTICS_V123|DEV_HAS_TEST_EXTENDED|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT2|DEV_HAS_GEAR_MODE|DEV_NEED_PHY_INIT_FIX|DEV_NEED_MSI_FIX,
+	},
+	{	/* MCP89 Ethernet Controller */
+		PCI_DEVICE(0x10DE, 0x0D7D),
+		.driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V3|DEV_HAS_STATISTICS_V123|DEV_HAS_TEST_EXTENDED|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_HAS_GEAR_MODE|DEV_NEED_PHY_INIT_FIX,
+	},
+	{0,},
+};
+
+static struct pci_driver forcedeth_pci_driver = {
+	.name		= DRV_NAME,
+	.id_table	= pci_tbl,
+	.probe		= nv_probe,
+	.remove		= nv_remove,
+	.shutdown	= nv_shutdown,
+	.driver.pm	= NV_PM_OPS,
+};
+
+module_param(max_interrupt_work, int, 0);
+MODULE_PARM_DESC(max_interrupt_work, "forcedeth maximum events handled per interrupt");
+module_param(optimization_mode, int, 0);
+MODULE_PARM_DESC(optimization_mode, "In throughput mode (0), every tx & rx packet will generate an interrupt. In CPU mode (1), interrupts are controlled by a timer. In dynamic mode (2), the mode toggles between throughput and CPU mode based on network load.");
+module_param(poll_interval, int, 0);
+MODULE_PARM_DESC(poll_interval, "Interval determines how frequent timer interrupt is generated by [(time_in_micro_secs * 100) / (2^10)]. Min is 0 and Max is 65535.");
+module_param(msi, int, 0);
+MODULE_PARM_DESC(msi, "MSI interrupts are enabled by setting to 1 and disabled by setting to 0.");
+module_param(msix, int, 0);
+MODULE_PARM_DESC(msix, "MSIX interrupts are enabled by setting to 1 and disabled by setting to 0.");
+module_param(dma_64bit, int, 0);
+MODULE_PARM_DESC(dma_64bit, "High DMA is enabled by setting to 1 and disabled by setting to 0.");
+module_param(phy_cross, int, 0);
+MODULE_PARM_DESC(phy_cross, "Phy crossover detection for Realtek 8201 phy is enabled by setting to 1 and disabled by setting to 0.");
+module_param(phy_power_down, int, 0);
+MODULE_PARM_DESC(phy_power_down, "Power down phy and disable link when interface is down (1), or leave phy powered up (0).");
+module_param(debug_tx_timeout, bool, 0);
+MODULE_PARM_DESC(debug_tx_timeout,
+		 "Dump tx related registers and ring when tx_timeout happens");
+
+module_pci_driver(forcedeth_pci_driver);
+MODULE_AUTHOR("Manfred Spraul <manfred@colorfullife.com>");
+MODULE_DESCRIPTION("Reverse Engineered nForce ethernet driver");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, pci_tbl);