Adding upstream version 6.1.76.upstream/6.1.76

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

4 files changed, 5534 insertions, 0 deletions

diff --git a/drivers/net/ethernet/agere/Kconfig b/drivers/net/ethernet/agere/Kconfig
new file mode 100644
index 000000000..9cd750184
--- /dev/null
+++ b/drivers/net/ethernet/agere/Kconfig
@@ -0,0 +1,31 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Agere device configuration
+#
+
+config NET_VENDOR_AGERE
+	bool "Agere 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 Agere devices. If you say Y, you will be asked
+	  for your specific card in the following questions.
+
+if NET_VENDOR_AGERE
+
+config ET131X
+	tristate "Agere ET-1310 Gigabit Ethernet support"
+	depends on PCI
+	select PHYLIB
+	select CRC32
+	help
+	  This driver supports Agere ET-1310 ethernet adapters.
+
+	  To compile this driver as a module, choose M here. The module
+	  will be called et131x.
+
+endif # NET_VENDOR_AGERE
diff --git a/drivers/net/ethernet/agere/Makefile b/drivers/net/ethernet/agere/Makefile
new file mode 100644
index 000000000..8dbdf666b
--- /dev/null
+++ b/drivers/net/ethernet/agere/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Makefile for the Agere ET-131x ethernet driver
+#
+
+obj-$(CONFIG_ET131X) += et131x.o
diff --git a/drivers/net/ethernet/agere/et131x.c b/drivers/net/ethernet/agere/et131x.c
new file mode 100644
index 000000000..5fab589b3
--- /dev/null
+++ b/drivers/net/ethernet/agere/et131x.c
@@ -0,0 +1,4065 @@
+/* Agere Systems Inc.
+ * 10/100/1000 Base-T Ethernet Driver for the ET1301 and ET131x series MACs
+ *
+ * Copyright © 2005 Agere Systems Inc.
+ * All rights reserved.
+ *   http://www.agere.com
+ *
+ * Copyright (c) 2011 Mark Einon <mark.einon@gmail.com>
+ *
+ *------------------------------------------------------------------------------
+ *
+ * SOFTWARE LICENSE
+ *
+ * This software is provided subject to the following terms and conditions,
+ * which you should read carefully before using the software.  Using this
+ * software indicates your acceptance of these terms and conditions.  If you do
+ * not agree with these terms and conditions, do not use the software.
+ *
+ * Copyright © 2005 Agere Systems Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source or binary forms, with or without
+ * modifications, are permitted provided that the following conditions are met:
+ *
+ * . Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following Disclaimer as comments in the code as
+ *    well as in the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * . Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following Disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * . Neither the name of Agere Systems Inc. nor the names of the contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * Disclaimer
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, INFRINGEMENT AND THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  ANY
+ * USE, MODIFICATION OR DISTRIBUTION OF THIS SOFTWARE IS SOLELY AT THE USERS OWN
+ * RISK. IN NO EVENT SHALL AGERE SYSTEMS INC. OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, INCLUDING, BUT NOT LIMITED TO, CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/pci.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+
+#include <linux/sched.h>
+#include <linux/ptrace.h>
+#include <linux/slab.h>
+#include <linux/ctype.h>
+#include <linux/string.h>
+#include <linux/timer.h>
+#include <linux/interrupt.h>
+#include <linux/in.h>
+#include <linux/delay.h>
+#include <linux/bitops.h>
+#include <linux/io.h>
+
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/if_arp.h>
+#include <linux/ioport.h>
+#include <linux/crc32.h>
+#include <linux/random.h>
+#include <linux/phy.h>
+
+#include "et131x.h"
+
+MODULE_AUTHOR("Victor Soriano <vjsoriano@agere.com>");
+MODULE_AUTHOR("Mark Einon <mark.einon@gmail.com>");
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_DESCRIPTION("10/100/1000 Base-T Ethernet Driver for the ET1310 by Agere Systems");
+
+/* EEPROM defines */
+#define MAX_NUM_REGISTER_POLLS          1000
+#define MAX_NUM_WRITE_RETRIES           2
+
+/* MAC defines */
+#define COUNTER_WRAP_16_BIT 0x10000
+#define COUNTER_WRAP_12_BIT 0x1000
+
+/* PCI defines */
+#define INTERNAL_MEM_SIZE       0x400	/* 1024 of internal memory */
+#define INTERNAL_MEM_RX_OFFSET  0x1FF	/* 50%   Tx, 50%   Rx */
+
+/* ISR defines */
+/* For interrupts, normal running is:
+ *       rxdma_xfr_done, phy_interrupt, mac_stat_interrupt,
+ *       watchdog_interrupt & txdma_xfer_done
+ *
+ * In both cases, when flow control is enabled for either Tx or bi-direction,
+ * we additional enable rx_fbr0_low and rx_fbr1_low, so we know when the
+ * buffer rings are running low.
+ */
+#define INT_MASK_DISABLE            0xffffffff
+
+/* NOTE: Masking out MAC_STAT Interrupt for now...
+ * #define INT_MASK_ENABLE             0xfff6bf17
+ * #define INT_MASK_ENABLE_NO_FLOW     0xfff6bfd7
+ */
+#define INT_MASK_ENABLE             0xfffebf17
+#define INT_MASK_ENABLE_NO_FLOW     0xfffebfd7
+
+/* General defines */
+/* Packet and header sizes */
+#define NIC_MIN_PACKET_SIZE	60
+
+/* Multicast list size */
+#define NIC_MAX_MCAST_LIST	128
+
+/* Supported Filters */
+#define ET131X_PACKET_TYPE_DIRECTED		0x0001
+#define ET131X_PACKET_TYPE_MULTICAST		0x0002
+#define ET131X_PACKET_TYPE_BROADCAST		0x0004
+#define ET131X_PACKET_TYPE_PROMISCUOUS		0x0008
+#define ET131X_PACKET_TYPE_ALL_MULTICAST	0x0010
+
+/* Tx Timeout */
+#define ET131X_TX_TIMEOUT	(1 * HZ)
+#define NIC_SEND_HANG_THRESHOLD	0
+
+/* MP_ADAPTER flags */
+#define FMP_ADAPTER_INTERRUPT_IN_USE	0x00000008
+
+/* MP_SHARED flags */
+#define FMP_ADAPTER_LOWER_POWER		0x00200000
+
+#define FMP_ADAPTER_NON_RECOVER_ERROR	0x00800000
+#define FMP_ADAPTER_HARDWARE_ERROR	0x04000000
+
+#define FMP_ADAPTER_FAIL_SEND_MASK	0x3ff00000
+
+/* Some offsets in PCI config space that are actually used. */
+#define ET1310_PCI_MAC_ADDRESS		0xA4
+#define ET1310_PCI_EEPROM_STATUS	0xB2
+#define ET1310_PCI_ACK_NACK		0xC0
+#define ET1310_PCI_REPLAY		0xC2
+#define ET1310_PCI_L0L1LATENCY		0xCF
+
+/* PCI Product IDs */
+#define ET131X_PCI_DEVICE_ID_GIG	0xED00	/* ET1310 1000 Base-T 8 */
+#define ET131X_PCI_DEVICE_ID_FAST	0xED01	/* ET1310 100  Base-T */
+
+/* Define order of magnitude converter */
+#define NANO_IN_A_MICRO	1000
+
+#define PARM_RX_NUM_BUFS_DEF    4
+#define PARM_RX_TIME_INT_DEF    10
+#define PARM_RX_MEM_END_DEF     0x2bc
+#define PARM_TX_TIME_INT_DEF    40
+#define PARM_TX_NUM_BUFS_DEF    4
+#define PARM_DMA_CACHE_DEF      0
+
+/* RX defines */
+#define FBR_CHUNKS		32
+#define MAX_DESC_PER_RING_RX	1024
+
+/* number of RFDs - default and min */
+#define RFD_LOW_WATER_MARK	40
+#define NIC_DEFAULT_NUM_RFD	1024
+#define NUM_FBRS		2
+
+#define MAX_PACKETS_HANDLED	256
+#define ET131X_MIN_MTU		64
+#define ET131X_MAX_MTU		9216
+
+#define ALCATEL_MULTICAST_PKT	0x01000000
+#define ALCATEL_BROADCAST_PKT	0x02000000
+
+/* typedefs for Free Buffer Descriptors */
+struct fbr_desc {
+	u32 addr_lo;
+	u32 addr_hi;
+	u32 word2;		/* Bits 10-31 reserved, 0-9 descriptor */
+};
+
+/* Packet Status Ring Descriptors
+ *
+ * Word 0:
+ *
+ * top 16 bits are from the Alcatel Status Word as enumerated in
+ * PE-MCXMAC Data Sheet IPD DS54 0210-1 (also IPD-DS80 0205-2)
+ *
+ * 0: hp			hash pass
+ * 1: ipa			IP checksum assist
+ * 2: ipp			IP checksum pass
+ * 3: tcpa			TCP checksum assist
+ * 4: tcpp			TCP checksum pass
+ * 5: wol			WOL Event
+ * 6: rxmac_error		RXMAC Error Indicator
+ * 7: drop			Drop packet
+ * 8: ft			Frame Truncated
+ * 9: jp			Jumbo Packet
+ * 10: vp			VLAN Packet
+ * 11-15: unused
+ * 16: asw_prev_pkt_dropped	e.g. IFG too small on previous
+ * 17: asw_RX_DV_event		short receive event detected
+ * 18: asw_false_carrier_event	bad carrier since last good packet
+ * 19: asw_code_err		one or more nibbles signalled as errors
+ * 20: asw_CRC_err		CRC error
+ * 21: asw_len_chk_err		frame length field incorrect
+ * 22: asw_too_long		frame length > 1518 bytes
+ * 23: asw_OK			valid CRC + no code error
+ * 24: asw_multicast		has a multicast address
+ * 25: asw_broadcast		has a broadcast address
+ * 26: asw_dribble_nibble	spurious bits after EOP
+ * 27: asw_control_frame	is a control frame
+ * 28: asw_pause_frame		is a pause frame
+ * 29: asw_unsupported_op	unsupported OP code
+ * 30: asw_VLAN_tag		VLAN tag detected
+ * 31: asw_long_evt		Rx long event
+ *
+ * Word 1:
+ * 0-15: length			length in bytes
+ * 16-25: bi			Buffer Index
+ * 26-27: ri			Ring Index
+ * 28-31: reserved
+ */
+struct pkt_stat_desc {
+	u32 word0;
+	u32 word1;
+};
+
+/* Typedefs for the RX DMA status word */
+
+/* rx status word 0 holds part of the status bits of the Rx DMA engine
+ * that get copied out to memory by the ET-1310.  Word 0 is a 32 bit word
+ * which contains the Free Buffer ring 0 and 1 available offset.
+ *
+ * bit 0-9 FBR1 offset
+ * bit 10 Wrap flag for FBR1
+ * bit 16-25 FBR0 offset
+ * bit 26 Wrap flag for FBR0
+ */
+
+/* RXSTAT_WORD1_t structure holds part of the status bits of the Rx DMA engine
+ * that get copied out to memory by the ET-1310.  Word 3 is a 32 bit word
+ * which contains the Packet Status Ring available offset.
+ *
+ * bit 0-15 reserved
+ * bit 16-27 PSRoffset
+ * bit 28 PSRwrap
+ * bit 29-31 unused
+ */
+
+/* struct rx_status_block is a structure representing the status of the Rx
+ * DMA engine it sits in free memory, and is pointed to by 0x101c / 0x1020
+ */
+struct rx_status_block {
+	u32 word0;
+	u32 word1;
+};
+
+/* Structure for look-up table holding free buffer ring pointers, addresses
+ * and state.
+ */
+struct fbr_lookup {
+	void		*virt[MAX_DESC_PER_RING_RX];
+	u32		 bus_high[MAX_DESC_PER_RING_RX];
+	u32		 bus_low[MAX_DESC_PER_RING_RX];
+	void		*ring_virtaddr;
+	dma_addr_t	 ring_physaddr;
+	void		*mem_virtaddrs[MAX_DESC_PER_RING_RX / FBR_CHUNKS];
+	dma_addr_t	 mem_physaddrs[MAX_DESC_PER_RING_RX / FBR_CHUNKS];
+	u32		 local_full;
+	u32		 num_entries;
+	dma_addr_t	 buffsize;
+};
+
+/* struct rx_ring is the structure representing the adaptor's local
+ * reference(s) to the rings
+ */
+struct rx_ring {
+	struct fbr_lookup *fbr[NUM_FBRS];
+	void *ps_ring_virtaddr;
+	dma_addr_t ps_ring_physaddr;
+	u32 local_psr_full;
+	u32 psr_entries;
+
+	struct rx_status_block *rx_status_block;
+	dma_addr_t rx_status_bus;
+
+	struct list_head recv_list;
+	u32 num_ready_recv;
+
+	u32 num_rfd;
+
+	bool unfinished_receives;
+};
+
+/* TX defines */
+/* word 2 of the control bits in the Tx Descriptor ring for the ET-1310
+ *
+ * 0-15: length of packet
+ * 16-27: VLAN tag
+ * 28: VLAN CFI
+ * 29-31: VLAN priority
+ *
+ * word 3 of the control bits in the Tx Descriptor ring for the ET-1310
+ *
+ * 0: last packet in the sequence
+ * 1: first packet in the sequence
+ * 2: interrupt the processor when this pkt sent
+ * 3: Control word - no packet data
+ * 4: Issue half-duplex backpressure : XON/XOFF
+ * 5: send pause frame
+ * 6: Tx frame has error
+ * 7: append CRC
+ * 8: MAC override
+ * 9: pad packet
+ * 10: Packet is a Huge packet
+ * 11: append VLAN tag
+ * 12: IP checksum assist
+ * 13: TCP checksum assist
+ * 14: UDP checksum assist
+ */
+#define TXDESC_FLAG_LASTPKT		0x0001
+#define TXDESC_FLAG_FIRSTPKT		0x0002
+#define TXDESC_FLAG_INTPROC		0x0004
+
+/* struct tx_desc represents each descriptor on the ring */
+struct tx_desc {
+	u32 addr_hi;
+	u32 addr_lo;
+	u32 len_vlan;	/* control words how to xmit the */
+	u32 flags;	/* data (detailed above) */
+};
+
+/* The status of the Tx DMA engine it sits in free memory, and is pointed to
+ * by 0x101c / 0x1020. This is a DMA10 type
+ */
+
+/* TCB (Transmit Control Block: Host Side) */
+struct tcb {
+	struct tcb *next;	/* Next entry in ring */
+	u32 count;		/* Used to spot stuck/lost packets */
+	u32 stale;		/* Used to spot stuck/lost packets */
+	struct sk_buff *skb;	/* Network skb we are tied to */
+	u32 index;		/* Ring indexes */
+	u32 index_start;
+};
+
+/* Structure representing our local reference(s) to the ring */
+struct tx_ring {
+	/* TCB (Transmit Control Block) memory and lists */
+	struct tcb *tcb_ring;
+
+	/* List of TCBs that are ready to be used */
+	struct tcb *tcb_qhead;
+	struct tcb *tcb_qtail;
+
+	/* list of TCBs that are currently being sent. */
+	struct tcb *send_head;
+	struct tcb *send_tail;
+	int used;
+
+	/* The actual descriptor ring */
+	struct tx_desc *tx_desc_ring;
+	dma_addr_t tx_desc_ring_pa;
+
+	/* send_idx indicates where we last wrote to in the descriptor ring. */
+	u32 send_idx;
+
+	/* The location of the write-back status block */
+	u32 *tx_status;
+	dma_addr_t tx_status_pa;
+
+	/* Packets since the last IRQ: used for interrupt coalescing */
+	int since_irq;
+};
+
+/* Do not change these values: if changed, then change also in respective
+ * TXdma and Rxdma engines
+ */
+#define NUM_DESC_PER_RING_TX         512    /* TX Do not change these values */
+#define NUM_TCB                      64
+
+/* These values are all superseded by registry entries to facilitate tuning.
+ * Once the desired performance has been achieved, the optimal registry values
+ * should be re-populated to these #defines:
+ */
+#define TX_ERROR_PERIOD             1000
+
+#define LO_MARK_PERCENT_FOR_PSR     15
+#define LO_MARK_PERCENT_FOR_RX      15
+
+/* RFD (Receive Frame Descriptor) */
+struct rfd {
+	struct list_head list_node;
+	struct sk_buff *skb;
+	u32 len;	/* total size of receive frame */
+	u16 bufferindex;
+	u8 ringindex;
+};
+
+/* Flow Control */
+#define FLOW_BOTH	0
+#define FLOW_TXONLY	1
+#define FLOW_RXONLY	2
+#define FLOW_NONE	3
+
+/* Struct to define some device statistics */
+struct ce_stats {
+	u32		multicast_pkts_rcvd;
+	u32		rcvd_pkts_dropped;
+
+	u32		tx_underflows;
+	u32		tx_collisions;
+	u32		tx_excessive_collisions;
+	u32		tx_first_collisions;
+	u32		tx_late_collisions;
+	u32		tx_max_pkt_errs;
+	u32		tx_deferred;
+
+	u32		rx_overflows;
+	u32		rx_length_errs;
+	u32		rx_align_errs;
+	u32		rx_crc_errs;
+	u32		rx_code_violations;
+	u32		rx_other_errs;
+
+	u32		interrupt_status;
+};
+
+/* The private adapter structure */
+struct et131x_adapter {
+	struct net_device *netdev;
+	struct pci_dev *pdev;
+	struct mii_bus *mii_bus;
+	struct napi_struct napi;
+
+	/* Flags that indicate current state of the adapter */
+	u32 flags;
+
+	/* local link state, to determine if a state change has occurred */
+	int link;
+
+	/* Configuration  */
+	u8 rom_addr[ETH_ALEN];
+	u8 addr[ETH_ALEN];
+	bool has_eeprom;
+	u8 eeprom_data[2];
+
+	spinlock_t tcb_send_qlock; /* protects the tx_ring send tcb list */
+	spinlock_t tcb_ready_qlock; /* protects the tx_ring ready tcb list */
+	spinlock_t rcv_lock; /* protects the rx_ring receive list */
+
+	/* Packet Filter and look ahead size */
+	u32 packet_filter;
+
+	/* multicast list */
+	u32 multicast_addr_count;
+	u8 multicast_list[NIC_MAX_MCAST_LIST][ETH_ALEN];
+
+	/* Pointer to the device's PCI register space */
+	struct address_map __iomem *regs;
+
+	/* Registry parameters */
+	u8 wanted_flow;		/* Flow we want for 802.3x flow control */
+	u32 registry_jumbo_packet;	/* Max supported ethernet packet size */
+
+	/* Derived from the registry: */
+	u8 flow;		/* flow control validated by the far-end */
+
+	/* Minimize init-time */
+	struct timer_list error_timer;
+
+	/* variable putting the phy into coma mode when boot up with no cable
+	 * plugged in after 5 seconds
+	 */
+	u8 boot_coma;
+
+	/* Tx Memory Variables */
+	struct tx_ring tx_ring;
+
+	/* Rx Memory Variables */
+	struct rx_ring rx_ring;
+
+	struct ce_stats stats;
+};
+
+static int eeprom_wait_ready(struct pci_dev *pdev, u32 *status)
+{
+	u32 reg;
+	int i;
+
+	/* 1. Check LBCIF Status Register for bits 6 & 3:2 all equal to 0 and
+	 *    bits 7,1:0 both equal to 1, at least once after reset.
+	 *    Subsequent operations need only to check that bits 1:0 are equal
+	 *    to 1 prior to starting a single byte read/write
+	 */
+	for (i = 0; i < MAX_NUM_REGISTER_POLLS; i++) {
+		if (pci_read_config_dword(pdev, LBCIF_DWORD1_GROUP, &reg))
+			return -EIO;
+
+		/* I2C idle and Phy Queue Avail both true */
+		if ((reg & 0x3000) == 0x3000) {
+			if (status)
+				*status = reg;
+			return reg & 0xFF;
+		}
+	}
+	return -ETIMEDOUT;
+}
+
+static int eeprom_write(struct et131x_adapter *adapter, u32 addr, u8 data)
+{
+	struct pci_dev *pdev = adapter->pdev;
+	int index = 0;
+	int retries;
+	int err = 0;
+	int writeok = 0;
+	u32 status;
+	u32 val = 0;
+
+	/* For an EEPROM, an I2C single byte write is defined as a START
+	 * condition followed by the device address, EEPROM address, one byte
+	 * of data and a STOP condition.  The STOP condition will trigger the
+	 * EEPROM's internally timed write cycle to the nonvolatile memory.
+	 * All inputs are disabled during this write cycle and the EEPROM will
+	 * not respond to any access until the internal write is complete.
+	 */
+	err = eeprom_wait_ready(pdev, NULL);
+	if (err < 0)
+		return err;
+
+	 /* 2. Write to the LBCIF Control Register:  bit 7=1, bit 6=1, bit 3=0,
+	  *    and bits 1:0 both =0.  Bit 5 should be set according to the
+	  *    type of EEPROM being accessed (1=two byte addressing, 0=one
+	  *    byte addressing).
+	  */
+	if (pci_write_config_byte(pdev, LBCIF_CONTROL_REGISTER,
+				  LBCIF_CONTROL_LBCIF_ENABLE |
+					LBCIF_CONTROL_I2C_WRITE))
+		return -EIO;
+
+	/* Prepare EEPROM address for Step 3 */
+	for (retries = 0; retries < MAX_NUM_WRITE_RETRIES; retries++) {
+		if (pci_write_config_dword(pdev, LBCIF_ADDRESS_REGISTER, addr))
+			break;
+		/* Write the data to the LBCIF Data Register (the I2C write
+		 * will begin).
+		 */
+		if (pci_write_config_byte(pdev, LBCIF_DATA_REGISTER, data))
+			break;
+		/* Monitor bit 1:0 of the LBCIF Status Register.  When bits
+		 * 1:0 are both equal to 1, the I2C write has completed and the
+		 * internal write cycle of the EEPROM is about to start.
+		 * (bits 1:0 = 01 is a legal state while waiting from both
+		 * equal to 1, but bits 1:0 = 10 is invalid and implies that
+		 * something is broken).
+		 */
+		err = eeprom_wait_ready(pdev, &status);
+		if (err < 0)
+			return 0;
+
+		/* Check bit 3 of the LBCIF Status Register.  If  equal to 1,
+		 * an error has occurred.Don't break here if we are revision
+		 * 1, this is so we do a blind write for load bug.
+		 */
+		if ((status & LBCIF_STATUS_GENERAL_ERROR) &&
+		    adapter->pdev->revision == 0)
+			break;
+
+		/* Check bit 2 of the LBCIF Status Register.  If equal to 1 an
+		 * ACK error has occurred on the address phase of the write.
+		 * This could be due to an actual hardware failure or the
+		 * EEPROM may still be in its internal write cycle from a
+		 * previous write. This write operation was ignored and must be
+		  *repeated later.
+		 */
+		if (status & LBCIF_STATUS_ACK_ERROR) {
+			/* This could be due to an actual hardware failure
+			 * or the EEPROM may still be in its internal write
+			 * cycle from a previous write. This write operation
+			 * was ignored and must be repeated later.
+			 */
+			udelay(10);
+			continue;
+		}
+
+		writeok = 1;
+		break;
+	}
+
+	udelay(10);
+
+	while (1) {
+		if (pci_write_config_byte(pdev, LBCIF_CONTROL_REGISTER,
+					  LBCIF_CONTROL_LBCIF_ENABLE))
+			writeok = 0;
+
+		/* Do read until internal ACK_ERROR goes away meaning write
+		 * completed
+		 */
+		do {
+			pci_write_config_dword(pdev,
+					       LBCIF_ADDRESS_REGISTER,
+					       addr);
+			do {
+				pci_read_config_dword(pdev,
+						      LBCIF_DATA_REGISTER,
+						      &val);
+			} while ((val & 0x00010000) == 0);
+		} while (val & 0x00040000);
+
+		if ((val & 0xFF00) != 0xC000 || index == 10000)
+			break;
+		index++;
+	}
+	return writeok ? 0 : -EIO;
+}
+
+static int eeprom_read(struct et131x_adapter *adapter, u32 addr, u8 *pdata)
+{
+	struct pci_dev *pdev = adapter->pdev;
+	int err;
+	u32 status;
+
+	/* A single byte read is similar to the single byte write, with the
+	 * exception of the data flow:
+	 */
+	err = eeprom_wait_ready(pdev, NULL);
+	if (err < 0)
+		return err;
+	/* Write to the LBCIF Control Register:  bit 7=1, bit 6=0, bit 3=0,
+	 * and bits 1:0 both =0.  Bit 5 should be set according to the type
+	 * of EEPROM being accessed (1=two byte addressing, 0=one byte
+	 * addressing).
+	 */
+	if (pci_write_config_byte(pdev, LBCIF_CONTROL_REGISTER,
+				  LBCIF_CONTROL_LBCIF_ENABLE))
+		return -EIO;
+	/* Write the address to the LBCIF Address Register (I2C read will
+	 * begin).
+	 */
+	if (pci_write_config_dword(pdev, LBCIF_ADDRESS_REGISTER, addr))
+		return -EIO;
+	/* Monitor bit 0 of the LBCIF Status Register.  When = 1, I2C read
+	 * is complete. (if bit 1 =1 and bit 0 stays = 0, a hardware failure
+	 * has occurred).
+	 */
+	err = eeprom_wait_ready(pdev, &status);
+	if (err < 0)
+		return err;
+	/* Regardless of error status, read data byte from LBCIF Data
+	 * Register.
+	 */
+	*pdata = err;
+
+	return (status & LBCIF_STATUS_ACK_ERROR) ? -EIO : 0;
+}
+
+static int et131x_init_eeprom(struct et131x_adapter *adapter)
+{
+	struct pci_dev *pdev = adapter->pdev;
+	u8 eestatus;
+
+	pci_read_config_byte(pdev, ET1310_PCI_EEPROM_STATUS, &eestatus);
+
+	/* THIS IS A WORKAROUND:
+	 * I need to call this function twice to get my card in a
+	 * LG M1 Express Dual running. I tried also a msleep before this
+	 * function, because I thought there could be some time conditions
+	 * but it didn't work. Call the whole function twice also work.
+	 */
+	if (pci_read_config_byte(pdev, ET1310_PCI_EEPROM_STATUS, &eestatus)) {
+		dev_err(&pdev->dev,
+			"Could not read PCI config space for EEPROM Status\n");
+		return -EIO;
+	}
+
+	/* Determine if the error(s) we care about are present. If they are
+	 * present we need to fail.
+	 */
+	if (eestatus & 0x4C) {
+		int write_failed = 0;
+
+		if (pdev->revision == 0x01) {
+			int	i;
+			static const u8 eedata[4] = { 0xFE, 0x13, 0x10, 0xFF };
+
+			/* Re-write the first 4 bytes if we have an eeprom
+			 * present and the revision id is 1, this fixes the
+			 * corruption seen with 1310 B Silicon
+			 */
+			for (i = 0; i < 3; i++)
+				if (eeprom_write(adapter, i, eedata[i]) < 0)
+					write_failed = 1;
+		}
+		if (pdev->revision  != 0x01 || write_failed) {
+			dev_err(&pdev->dev,
+				"Fatal EEPROM Status Error - 0x%04x\n",
+				eestatus);
+
+			/* This error could mean that there was an error
+			 * reading the eeprom or that the eeprom doesn't exist.
+			 * We will treat each case the same and not try to
+			 * gather additional information that normally would
+			 * come from the eeprom, like MAC Address
+			 */
+			adapter->has_eeprom = false;
+			return -EIO;
+		}
+	}
+	adapter->has_eeprom = true;
+
+	/* Read the EEPROM for information regarding LED behavior. Refer to
+	 * et131x_xcvr_init() for its use.
+	 */
+	eeprom_read(adapter, 0x70, &adapter->eeprom_data[0]);
+	eeprom_read(adapter, 0x71, &adapter->eeprom_data[1]);
+
+	if (adapter->eeprom_data[0] != 0xcd)
+		/* Disable all optional features */
+		adapter->eeprom_data[1] = 0x00;
+
+	return 0;
+}
+
+static void et131x_rx_dma_enable(struct et131x_adapter *adapter)
+{
+	/* Setup the receive dma configuration register for normal operation */
+	u32 csr =  ET_RXDMA_CSR_FBR1_ENABLE;
+	struct rx_ring *rx_ring = &adapter->rx_ring;
+
+	if (rx_ring->fbr[1]->buffsize == 4096)
+		csr |= ET_RXDMA_CSR_FBR1_SIZE_LO;
+	else if (rx_ring->fbr[1]->buffsize == 8192)
+		csr |= ET_RXDMA_CSR_FBR1_SIZE_HI;
+	else if (rx_ring->fbr[1]->buffsize == 16384)
+		csr |= ET_RXDMA_CSR_FBR1_SIZE_LO | ET_RXDMA_CSR_FBR1_SIZE_HI;
+
+	csr |= ET_RXDMA_CSR_FBR0_ENABLE;
+	if (rx_ring->fbr[0]->buffsize == 256)
+		csr |= ET_RXDMA_CSR_FBR0_SIZE_LO;
+	else if (rx_ring->fbr[0]->buffsize == 512)
+		csr |= ET_RXDMA_CSR_FBR0_SIZE_HI;
+	else if (rx_ring->fbr[0]->buffsize == 1024)
+		csr |= ET_RXDMA_CSR_FBR0_SIZE_LO | ET_RXDMA_CSR_FBR0_SIZE_HI;
+	writel(csr, &adapter->regs->rxdma.csr);
+
+	csr = readl(&adapter->regs->rxdma.csr);
+	if (csr & ET_RXDMA_CSR_HALT_STATUS) {
+		udelay(5);
+		csr = readl(&adapter->regs->rxdma.csr);
+		if (csr & ET_RXDMA_CSR_HALT_STATUS) {
+			dev_err(&adapter->pdev->dev,
+				"RX Dma failed to exit halt state. CSR 0x%08x\n",
+				csr);
+		}
+	}
+}
+
+static void et131x_rx_dma_disable(struct et131x_adapter *adapter)
+{
+	u32 csr;
+	/* Setup the receive dma configuration register */
+	writel(ET_RXDMA_CSR_HALT | ET_RXDMA_CSR_FBR1_ENABLE,
+	       &adapter->regs->rxdma.csr);
+	csr = readl(&adapter->regs->rxdma.csr);
+	if (!(csr & ET_RXDMA_CSR_HALT_STATUS)) {
+		udelay(5);
+		csr = readl(&adapter->regs->rxdma.csr);
+		if (!(csr & ET_RXDMA_CSR_HALT_STATUS))
+			dev_err(&adapter->pdev->dev,
+				"RX Dma failed to enter halt state. CSR 0x%08x\n",
+				csr);
+	}
+}
+
+static void et131x_tx_dma_enable(struct et131x_adapter *adapter)
+{
+	/* Setup the transmit dma configuration register for normal
+	 * operation
+	 */
+	writel(ET_TXDMA_SNGL_EPKT | (PARM_DMA_CACHE_DEF << ET_TXDMA_CACHE_SHIFT),
+	       &adapter->regs->txdma.csr);
+}
+
+static inline void add_10bit(u32 *v, int n)
+{
+	*v = INDEX10(*v + n) | (*v & ET_DMA10_WRAP);
+}
+
+static inline void add_12bit(u32 *v, int n)
+{
+	*v = INDEX12(*v + n) | (*v & ET_DMA12_WRAP);
+}
+
+static void et1310_config_mac_regs1(struct et131x_adapter *adapter)
+{
+	struct mac_regs __iomem *macregs = &adapter->regs->mac;
+	u32 station1;
+	u32 station2;
+	u32 ipg;
+
+	/* First we need to reset everything.  Write to MAC configuration
+	 * register 1 to perform reset.
+	 */
+	writel(ET_MAC_CFG1_SOFT_RESET | ET_MAC_CFG1_SIM_RESET  |
+	       ET_MAC_CFG1_RESET_RXMC | ET_MAC_CFG1_RESET_TXMC |
+	       ET_MAC_CFG1_RESET_RXFUNC | ET_MAC_CFG1_RESET_TXFUNC,
+	       &macregs->cfg1);
+
+	/* Next lets configure the MAC Inter-packet gap register */
+	ipg = 0x38005860;		/* IPG1 0x38 IPG2 0x58 B2B 0x60 */
+	ipg |= 0x50 << 8;		/* ifg enforce 0x50 */
+	writel(ipg, &macregs->ipg);
+
+	/* Next lets configure the MAC Half Duplex register */
+	/* BEB trunc 0xA, Ex Defer, Rexmit 0xF Coll 0x37 */
+	writel(0x00A1F037, &macregs->hfdp);
+
+	/* Next lets configure the MAC Interface Control register */
+	writel(0, &macregs->if_ctrl);
+
+	writel(ET_MAC_MIIMGMT_CLK_RST, &macregs->mii_mgmt_cfg);
+
+	/* Next lets configure the MAC Station Address register.  These
+	 * values are read from the EEPROM during initialization and stored
+	 * in the adapter structure.  We write what is stored in the adapter
+	 * structure to the MAC Station Address registers high and low.  This
+	 * station address is used for generating and checking pause control
+	 * packets.
+	 */
+	station2 = (adapter->addr[1] << ET_MAC_STATION_ADDR2_OC2_SHIFT) |
+		   (adapter->addr[0] << ET_MAC_STATION_ADDR2_OC1_SHIFT);
+	station1 = (adapter->addr[5] << ET_MAC_STATION_ADDR1_OC6_SHIFT) |
+		   (adapter->addr[4] << ET_MAC_STATION_ADDR1_OC5_SHIFT) |
+		   (adapter->addr[3] << ET_MAC_STATION_ADDR1_OC4_SHIFT) |
+		    adapter->addr[2];
+	writel(station1, &macregs->station_addr_1);
+	writel(station2, &macregs->station_addr_2);
+
+	/* Max ethernet packet in bytes that will be passed by the mac without
+	 * being truncated.  Allow the MAC to pass 4 more than our max packet
+	 * size.  This is 4 for the Ethernet CRC.
+	 *
+	 * Packets larger than (registry_jumbo_packet) that do not contain a
+	 * VLAN ID will be dropped by the Rx function.
+	 */
+	writel(adapter->registry_jumbo_packet + 4, &macregs->max_fm_len);
+
+	/* clear out MAC config reset */
+	writel(0, &macregs->cfg1);
+}
+
+static void et1310_config_mac_regs2(struct et131x_adapter *adapter)
+{
+	int32_t delay = 0;
+	struct mac_regs __iomem *mac = &adapter->regs->mac;
+	struct phy_device *phydev = adapter->netdev->phydev;
+	u32 cfg1;
+	u32 cfg2;
+	u32 ifctrl;
+	u32 ctl;
+
+	ctl = readl(&adapter->regs->txmac.ctl);
+	cfg1 = readl(&mac->cfg1);
+	cfg2 = readl(&mac->cfg2);
+	ifctrl = readl(&mac->if_ctrl);
+
+	/* Set up the if mode bits */
+	cfg2 &= ~ET_MAC_CFG2_IFMODE_MASK;
+	if (phydev->speed == SPEED_1000) {
+		cfg2 |= ET_MAC_CFG2_IFMODE_1000;
+		ifctrl &= ~ET_MAC_IFCTRL_PHYMODE;
+	} else {
+		cfg2 |= ET_MAC_CFG2_IFMODE_100;
+		ifctrl |= ET_MAC_IFCTRL_PHYMODE;
+	}
+
+	cfg1 |= ET_MAC_CFG1_RX_ENABLE | ET_MAC_CFG1_TX_ENABLE |
+							ET_MAC_CFG1_TX_FLOW;
+
+	cfg1 &= ~(ET_MAC_CFG1_LOOPBACK | ET_MAC_CFG1_RX_FLOW);
+	if (adapter->flow == FLOW_RXONLY || adapter->flow == FLOW_BOTH)
+		cfg1 |= ET_MAC_CFG1_RX_FLOW;
+	writel(cfg1, &mac->cfg1);
+
+	/* Now we need to initialize the MAC Configuration 2 register */
+	/* preamble 7, check length, huge frame off, pad crc, crc enable
+	 * full duplex off
+	 */
+	cfg2 |= 0x7 << ET_MAC_CFG2_PREAMBLE_SHIFT;
+	cfg2 |= ET_MAC_CFG2_IFMODE_LEN_CHECK;
+	cfg2 |= ET_MAC_CFG2_IFMODE_PAD_CRC;
+	cfg2 |=	ET_MAC_CFG2_IFMODE_CRC_ENABLE;
+	cfg2 &= ~ET_MAC_CFG2_IFMODE_HUGE_FRAME;
+	cfg2 &= ~ET_MAC_CFG2_IFMODE_FULL_DPLX;
+
+	if (phydev->duplex == DUPLEX_FULL)
+		cfg2 |= ET_MAC_CFG2_IFMODE_FULL_DPLX;
+
+	ifctrl &= ~ET_MAC_IFCTRL_GHDMODE;
+	if (phydev->duplex == DUPLEX_HALF)
+		ifctrl |= ET_MAC_IFCTRL_GHDMODE;
+
+	writel(ifctrl, &mac->if_ctrl);
+	writel(cfg2, &mac->cfg2);
+
+	do {
+		udelay(10);
+		delay++;
+		cfg1 = readl(&mac->cfg1);
+	} while ((cfg1 & ET_MAC_CFG1_WAIT) != ET_MAC_CFG1_WAIT && delay < 100);
+
+	if (delay == 100) {
+		dev_warn(&adapter->pdev->dev,
+			 "Syncd bits did not respond correctly cfg1 word 0x%08x\n",
+			 cfg1);
+	}
+
+	ctl |= ET_TX_CTRL_TXMAC_ENABLE | ET_TX_CTRL_FC_DISABLE;
+	writel(ctl, &adapter->regs->txmac.ctl);
+
+	if (adapter->flags & FMP_ADAPTER_LOWER_POWER) {
+		et131x_rx_dma_enable(adapter);
+		et131x_tx_dma_enable(adapter);
+	}
+}
+
+static int et1310_in_phy_coma(struct et131x_adapter *adapter)
+{
+	u32 pmcsr = readl(&adapter->regs->global.pm_csr);
+
+	return ET_PM_PHY_SW_COMA & pmcsr ? 1 : 0;
+}
+
+static void et1310_setup_device_for_multicast(struct et131x_adapter *adapter)
+{
+	struct rxmac_regs __iomem *rxmac = &adapter->regs->rxmac;
+	u32 hash1 = 0;
+	u32 hash2 = 0;
+	u32 hash3 = 0;
+	u32 hash4 = 0;
+
+	/* If ET131X_PACKET_TYPE_MULTICAST is specified, then we provision
+	 * the multi-cast LIST.  If it is NOT specified, (and "ALL" is not
+	 * specified) then we should pass NO multi-cast addresses to the
+	 * driver.
+	 */
+	if (adapter->packet_filter & ET131X_PACKET_TYPE_MULTICAST) {
+		int i;
+
+		/* Loop through our multicast array and set up the device */
+		for (i = 0; i < adapter->multicast_addr_count; i++) {
+			u32 result;
+
+			result = ether_crc(6, adapter->multicast_list[i]);
+
+			result = (result & 0x3F800000) >> 23;
+
+			if (result < 32) {
+				hash1 |= (1 << result);
+			} else if ((31 < result) && (result < 64)) {
+				result -= 32;
+				hash2 |= (1 << result);
+			} else if ((63 < result) && (result < 96)) {
+				result -= 64;
+				hash3 |= (1 << result);
+			} else {
+				result -= 96;
+				hash4 |= (1 << result);
+			}
+		}
+	}
+
+	/* Write out the new hash to the device */
+	if (!et1310_in_phy_coma(adapter)) {
+		writel(hash1, &rxmac->multi_hash1);
+		writel(hash2, &rxmac->multi_hash2);
+		writel(hash3, &rxmac->multi_hash3);
+		writel(hash4, &rxmac->multi_hash4);
+	}
+}
+
+static void et1310_setup_device_for_unicast(struct et131x_adapter *adapter)
+{
+	struct rxmac_regs __iomem *rxmac = &adapter->regs->rxmac;
+	u32 uni_pf1;
+	u32 uni_pf2;
+	u32 uni_pf3;
+
+	/* Set up unicast packet filter reg 3 to be the first two octets of
+	 * the MAC address for both address
+	 *
+	 * Set up unicast packet filter reg 2 to be the octets 2 - 5 of the
+	 * MAC address for second address
+	 *
+	 * Set up unicast packet filter reg 3 to be the octets 2 - 5 of the
+	 * MAC address for first address
+	 */
+	uni_pf3 = (adapter->addr[0] << ET_RX_UNI_PF_ADDR2_1_SHIFT) |
+		  (adapter->addr[1] << ET_RX_UNI_PF_ADDR2_2_SHIFT) |
+		  (adapter->addr[0] << ET_RX_UNI_PF_ADDR1_1_SHIFT) |
+		   adapter->addr[1];
+
+	uni_pf2 = (adapter->addr[2] << ET_RX_UNI_PF_ADDR2_3_SHIFT) |
+		  (adapter->addr[3] << ET_RX_UNI_PF_ADDR2_4_SHIFT) |
+		  (adapter->addr[4] << ET_RX_UNI_PF_ADDR2_5_SHIFT) |
+		   adapter->addr[5];
+
+	uni_pf1 = (adapter->addr[2] << ET_RX_UNI_PF_ADDR1_3_SHIFT) |
+		  (adapter->addr[3] << ET_RX_UNI_PF_ADDR1_4_SHIFT) |
+		  (adapter->addr[4] << ET_RX_UNI_PF_ADDR1_5_SHIFT) |
+		   adapter->addr[5];
+
+	if (!et1310_in_phy_coma(adapter)) {
+		writel(uni_pf1, &rxmac->uni_pf_addr1);
+		writel(uni_pf2, &rxmac->uni_pf_addr2);
+		writel(uni_pf3, &rxmac->uni_pf_addr3);
+	}
+}
+
+static void et1310_config_rxmac_regs(struct et131x_adapter *adapter)
+{
+	struct rxmac_regs __iomem *rxmac = &adapter->regs->rxmac;
+	struct phy_device *phydev = adapter->netdev->phydev;
+	u32 sa_lo;
+	u32 sa_hi = 0;
+	u32 pf_ctrl = 0;
+	u32 __iomem *wolw;
+
+	/* Disable the MAC while it is being configured (also disable WOL) */
+	writel(0x8, &rxmac->ctrl);
+
+	/* Initialize WOL to disabled. */
+	writel(0, &rxmac->crc0);
+	writel(0, &rxmac->crc12);
+	writel(0, &rxmac->crc34);
+
+	/* We need to set the WOL mask0 - mask4 next.  We initialize it to
+	 * its default Values of 0x00000000 because there are not WOL masks
+	 * as of this time.
+	 */
+	for (wolw = &rxmac->mask0_word0; wolw <= &rxmac->mask4_word3; wolw++)
+		writel(0, wolw);
+
+	/* Lets setup the WOL Source Address */
+	sa_lo = (adapter->addr[2] << ET_RX_WOL_LO_SA3_SHIFT) |
+		(adapter->addr[3] << ET_RX_WOL_LO_SA4_SHIFT) |
+		(adapter->addr[4] << ET_RX_WOL_LO_SA5_SHIFT) |
+		 adapter->addr[5];
+	writel(sa_lo, &rxmac->sa_lo);
+
+	sa_hi = (u32)(adapter->addr[0] << ET_RX_WOL_HI_SA1_SHIFT) |
+		       adapter->addr[1];
+	writel(sa_hi, &rxmac->sa_hi);
+
+	/* Disable all Packet Filtering */
+	writel(0, &rxmac->pf_ctrl);
+
+	/* Let's initialize the Unicast Packet filtering address */
+	if (adapter->packet_filter & ET131X_PACKET_TYPE_DIRECTED) {
+		et1310_setup_device_for_unicast(adapter);
+		pf_ctrl |= ET_RX_PFCTRL_UNICST_FILTER_ENABLE;
+	} else {
+		writel(0, &rxmac->uni_pf_addr1);
+		writel(0, &rxmac->uni_pf_addr2);
+		writel(0, &rxmac->uni_pf_addr3);
+	}
+
+	/* Let's initialize the Multicast hash */
+	if (!(adapter->packet_filter & ET131X_PACKET_TYPE_ALL_MULTICAST)) {
+		pf_ctrl |= ET_RX_PFCTRL_MLTCST_FILTER_ENABLE;
+		et1310_setup_device_for_multicast(adapter);
+	}
+
+	/* Runt packet filtering.  Didn't work in version A silicon. */
+	pf_ctrl |= (NIC_MIN_PACKET_SIZE + 4) << ET_RX_PFCTRL_MIN_PKT_SZ_SHIFT;
+	pf_ctrl |= ET_RX_PFCTRL_FRAG_FILTER_ENABLE;
+
+	if (adapter->registry_jumbo_packet > 8192)
+		/* In order to transmit jumbo packets greater than 8k, the
+		 * FIFO between RxMAC and RxDMA needs to be reduced in size
+		 * to (16k - Jumbo packet size).  In order to implement this,
+		 * we must use "cut through" mode in the RxMAC, which chops
+		 * packets down into segments which are (max_size * 16).  In
+		 * this case we selected 256 bytes, since this is the size of
+		 * the PCI-Express TLP's that the 1310 uses.
+		 *
+		 * seg_en on, fc_en off, size 0x10
+		 */
+		writel(0x41, &rxmac->mcif_ctrl_max_seg);
+	else
+		writel(0, &rxmac->mcif_ctrl_max_seg);
+
+	writel(0, &rxmac->mcif_water_mark);
+	writel(0, &rxmac->mif_ctrl);
+	writel(0, &rxmac->space_avail);
+
+	/* Initialize the mif_ctrl register
+	 * bit 3:  Receive code error. One or more nibbles were signaled as
+	 *	   errors  during the reception of the packet.  Clear this
+	 *	   bit in Gigabit, set it in 100Mbit.  This was derived
+	 *	   experimentally at UNH.
+	 * bit 4:  Receive CRC error. The packet's CRC did not match the
+	 *	   internally generated CRC.
+	 * bit 5:  Receive length check error. Indicates that frame length
+	 *	   field value in the packet does not match the actual data
+	 *	   byte length and is not a type field.
+	 * bit 16: Receive frame truncated.
+	 * bit 17: Drop packet enable
+	 */
+	if (phydev && phydev->speed == SPEED_100)
+		writel(0x30038, &rxmac->mif_ctrl);
+	else
+		writel(0x30030, &rxmac->mif_ctrl);
+
+	/* Finally we initialize RxMac to be enabled & WOL disabled.  Packet
+	 * filter is always enabled since it is where the runt packets are
+	 * supposed to be dropped.  For version A silicon, runt packet
+	 * dropping doesn't work, so it is disabled in the pf_ctrl register,
+	 * but we still leave the packet filter on.
+	 */
+	writel(pf_ctrl, &rxmac->pf_ctrl);
+	writel(ET_RX_CTRL_RXMAC_ENABLE | ET_RX_CTRL_WOL_DISABLE, &rxmac->ctrl);
+}
+
+static void et1310_config_txmac_regs(struct et131x_adapter *adapter)
+{
+	struct txmac_regs __iomem *txmac = &adapter->regs->txmac;
+
+	/* We need to update the Control Frame Parameters
+	 * cfpt - control frame pause timer set to 64 (0x40)
+	 * cfep - control frame extended pause timer set to 0x0
+	 */
+	if (adapter->flow == FLOW_NONE)
+		writel(0, &txmac->cf_param);
+	else
+		writel(0x40, &txmac->cf_param);
+}
+
+static void et1310_config_macstat_regs(struct et131x_adapter *adapter)
+{
+	struct macstat_regs __iomem *macstat = &adapter->regs->macstat;
+	u32 __iomem *reg;
+
+	/* initialize all the macstat registers to zero on the device  */
+	for (reg = &macstat->txrx_0_64_byte_frames;
+	     reg <= &macstat->carry_reg2; reg++)
+		writel(0, reg);
+
+	/* Unmask any counters that we want to track the overflow of.
+	 * Initially this will be all counters.  It may become clear later
+	 * that we do not need to track all counters.
+	 */
+	writel(0xFFFFBE32, &macstat->carry_reg1_mask);
+	writel(0xFFFE7E8B, &macstat->carry_reg2_mask);
+}
+
+static int et131x_phy_mii_read(struct et131x_adapter *adapter, u8 addr,
+			       u8 reg, u16 *value)
+{
+	struct mac_regs __iomem *mac = &adapter->regs->mac;
+	int status = 0;
+	u32 delay = 0;
+	u32 mii_addr;
+	u32 mii_cmd;
+	u32 mii_indicator;
+
+	/* Save a local copy of the registers we are dealing with so we can
+	 * set them back
+	 */
+	mii_addr = readl(&mac->mii_mgmt_addr);
+	mii_cmd = readl(&mac->mii_mgmt_cmd);
+
+	/* Stop the current operation */
+	writel(0, &mac->mii_mgmt_cmd);
+
+	/* Set up the register we need to read from on the correct PHY */
+	writel(ET_MAC_MII_ADDR(addr, reg), &mac->mii_mgmt_addr);
+
+	writel(0x1, &mac->mii_mgmt_cmd);
+
+	do {
+		udelay(50);
+		delay++;
+		mii_indicator = readl(&mac->mii_mgmt_indicator);
+	} while ((mii_indicator & ET_MAC_MGMT_WAIT) && delay < 50);
+
+	/* If we hit the max delay, we could not read the register */
+	if (delay == 50) {
+		dev_warn(&adapter->pdev->dev,
+			 "reg 0x%08x could not be read\n", reg);
+		dev_warn(&adapter->pdev->dev, "status is  0x%08x\n",
+			 mii_indicator);
+
+		status = -EIO;
+		goto out;
+	}
+
+	/* If we hit here we were able to read the register and we need to
+	 * return the value to the caller
+	 */
+	*value = readl(&mac->mii_mgmt_stat) & ET_MAC_MIIMGMT_STAT_PHYCRTL_MASK;
+
+out:
+	/* Stop the read operation */
+	writel(0, &mac->mii_mgmt_cmd);
+
+	/* set the registers we touched back to the state at which we entered
+	 * this function
+	 */
+	writel(mii_addr, &mac->mii_mgmt_addr);
+	writel(mii_cmd, &mac->mii_mgmt_cmd);
+
+	return status;
+}
+
+static int et131x_mii_read(struct et131x_adapter *adapter, u8 reg, u16 *value)
+{
+	struct phy_device *phydev = adapter->netdev->phydev;
+
+	if (!phydev)
+		return -EIO;
+
+	return et131x_phy_mii_read(adapter, phydev->mdio.addr, reg, value);
+}
+
+static int et131x_mii_write(struct et131x_adapter *adapter, u8 addr, u8 reg,
+			    u16 value)
+{
+	struct mac_regs __iomem *mac = &adapter->regs->mac;
+	int status = 0;
+	u32 delay = 0;
+	u32 mii_addr;
+	u32 mii_cmd;
+	u32 mii_indicator;
+
+	/* Save a local copy of the registers we are dealing with so we can
+	 * set them back
+	 */
+	mii_addr = readl(&mac->mii_mgmt_addr);
+	mii_cmd = readl(&mac->mii_mgmt_cmd);
+
+	/* Stop the current operation */
+	writel(0, &mac->mii_mgmt_cmd);
+
+	/* Set up the register we need to write to on the correct PHY */
+	writel(ET_MAC_MII_ADDR(addr, reg), &mac->mii_mgmt_addr);
+
+	/* Add the value to write to the registers to the mac */
+	writel(value, &mac->mii_mgmt_ctrl);
+
+	do {
+		udelay(50);
+		delay++;
+		mii_indicator = readl(&mac->mii_mgmt_indicator);
+	} while ((mii_indicator & ET_MAC_MGMT_BUSY) && delay < 100);
+
+	/* If we hit the max delay, we could not write the register */
+	if (delay == 100) {
+		u16 tmp;
+
+		dev_warn(&adapter->pdev->dev,
+			 "reg 0x%08x could not be written", reg);
+		dev_warn(&adapter->pdev->dev, "status is  0x%08x\n",
+			 mii_indicator);
+		dev_warn(&adapter->pdev->dev, "command is  0x%08x\n",
+			 readl(&mac->mii_mgmt_cmd));
+
+		et131x_mii_read(adapter, reg, &tmp);
+
+		status = -EIO;
+	}
+	/* Stop the write operation */
+	writel(0, &mac->mii_mgmt_cmd);
+
+	/* set the registers we touched back to the state at which we entered
+	 * this function
+	 */
+	writel(mii_addr, &mac->mii_mgmt_addr);
+	writel(mii_cmd, &mac->mii_mgmt_cmd);
+
+	return status;
+}
+
+static void et1310_phy_read_mii_bit(struct et131x_adapter *adapter,
+				    u16 regnum,
+				    u16 bitnum,
+				    u8 *value)
+{
+	u16 reg;
+	u16 mask = 1 << bitnum;
+
+	et131x_mii_read(adapter, regnum, &reg);
+
+	*value = (reg & mask) >> bitnum;
+}
+
+static void et1310_config_flow_control(struct et131x_adapter *adapter)
+{
+	struct phy_device *phydev = adapter->netdev->phydev;
+
+	if (phydev->duplex == DUPLEX_HALF) {
+		adapter->flow = FLOW_NONE;
+	} else {
+		char remote_pause, remote_async_pause;
+
+		et1310_phy_read_mii_bit(adapter, 5, 10, &remote_pause);
+		et1310_phy_read_mii_bit(adapter, 5, 11, &remote_async_pause);
+
+		if (remote_pause && remote_async_pause) {
+			adapter->flow = adapter->wanted_flow;
+		} else if (remote_pause && !remote_async_pause) {
+			if (adapter->wanted_flow == FLOW_BOTH)
+				adapter->flow = FLOW_BOTH;
+			else
+				adapter->flow = FLOW_NONE;
+		} else if (!remote_pause && !remote_async_pause) {
+			adapter->flow = FLOW_NONE;
+		} else {
+			if (adapter->wanted_flow == FLOW_BOTH)
+				adapter->flow = FLOW_RXONLY;
+			else
+				adapter->flow = FLOW_NONE;
+		}
+	}
+}
+
+/* et1310_update_macstat_host_counters - Update local copy of the statistics */
+static void et1310_update_macstat_host_counters(struct et131x_adapter *adapter)
+{
+	struct ce_stats *stats = &adapter->stats;
+	struct macstat_regs __iomem *macstat =
+		&adapter->regs->macstat;
+
+	stats->tx_collisions	       += readl(&macstat->tx_total_collisions);
+	stats->tx_first_collisions     += readl(&macstat->tx_single_collisions);
+	stats->tx_deferred	       += readl(&macstat->tx_deferred);
+	stats->tx_excessive_collisions +=
+				readl(&macstat->tx_multiple_collisions);
+	stats->tx_late_collisions      += readl(&macstat->tx_late_collisions);
+	stats->tx_underflows	       += readl(&macstat->tx_undersize_frames);
+	stats->tx_max_pkt_errs	       += readl(&macstat->tx_oversize_frames);
+
+	stats->rx_align_errs        += readl(&macstat->rx_align_errs);
+	stats->rx_crc_errs          += readl(&macstat->rx_code_errs);
+	stats->rcvd_pkts_dropped    += readl(&macstat->rx_drops);
+	stats->rx_overflows         += readl(&macstat->rx_oversize_packets);
+	stats->rx_code_violations   += readl(&macstat->rx_fcs_errs);
+	stats->rx_length_errs       += readl(&macstat->rx_frame_len_errs);
+	stats->rx_other_errs        += readl(&macstat->rx_fragment_packets);
+}
+
+/* et1310_handle_macstat_interrupt
+ *
+ * One of the MACSTAT counters has wrapped.  Update the local copy of
+ * the statistics held in the adapter structure, checking the "wrap"
+ * bit for each counter.
+ */
+static void et1310_handle_macstat_interrupt(struct et131x_adapter *adapter)
+{
+	u32 carry_reg1;
+	u32 carry_reg2;
+
+	/* Read the interrupt bits from the register(s).  These are Clear On
+	 * Write.
+	 */
+	carry_reg1 = readl(&adapter->regs->macstat.carry_reg1);
+	carry_reg2 = readl(&adapter->regs->macstat.carry_reg2);
+
+	writel(carry_reg1, &adapter->regs->macstat.carry_reg1);
+	writel(carry_reg2, &adapter->regs->macstat.carry_reg2);
+
+	/* We need to do update the host copy of all the MAC_STAT counters.
+	 * For each counter, check it's overflow bit.  If the overflow bit is
+	 * set, then increment the host version of the count by one complete
+	 * revolution of the counter.  This routine is called when the counter
+	 * block indicates that one of the counters has wrapped.
+	 */
+	if (carry_reg1 & (1 << 14))
+		adapter->stats.rx_code_violations	+= COUNTER_WRAP_16_BIT;
+	if (carry_reg1 & (1 << 8))
+		adapter->stats.rx_align_errs	+= COUNTER_WRAP_12_BIT;
+	if (carry_reg1 & (1 << 7))
+		adapter->stats.rx_length_errs	+= COUNTER_WRAP_16_BIT;
+	if (carry_reg1 & (1 << 2))
+		adapter->stats.rx_other_errs	+= COUNTER_WRAP_16_BIT;
+	if (carry_reg1 & (1 << 6))
+		adapter->stats.rx_crc_errs	+= COUNTER_WRAP_16_BIT;
+	if (carry_reg1 & (1 << 3))
+		adapter->stats.rx_overflows	+= COUNTER_WRAP_16_BIT;
+	if (carry_reg1 & (1 << 0))
+		adapter->stats.rcvd_pkts_dropped	+= COUNTER_WRAP_16_BIT;
+	if (carry_reg2 & (1 << 16))
+		adapter->stats.tx_max_pkt_errs	+= COUNTER_WRAP_12_BIT;
+	if (carry_reg2 & (1 << 15))
+		adapter->stats.tx_underflows	+= COUNTER_WRAP_12_BIT;
+	if (carry_reg2 & (1 << 6))
+		adapter->stats.tx_first_collisions += COUNTER_WRAP_12_BIT;
+	if (carry_reg2 & (1 << 8))
+		adapter->stats.tx_deferred	+= COUNTER_WRAP_12_BIT;
+	if (carry_reg2 & (1 << 5))
+		adapter->stats.tx_excessive_collisions += COUNTER_WRAP_12_BIT;
+	if (carry_reg2 & (1 << 4))
+		adapter->stats.tx_late_collisions	+= COUNTER_WRAP_12_BIT;
+	if (carry_reg2 & (1 << 2))
+		adapter->stats.tx_collisions	+= COUNTER_WRAP_12_BIT;
+}
+
+static int et131x_mdio_read(struct mii_bus *bus, int phy_addr, int reg)
+{
+	struct net_device *netdev = bus->priv;
+	struct et131x_adapter *adapter = netdev_priv(netdev);
+	u16 value;
+	int ret;
+
+	ret = et131x_phy_mii_read(adapter, phy_addr, reg, &value);
+
+	if (ret < 0)
+		return ret;
+
+	return value;
+}
+
+static int et131x_mdio_write(struct mii_bus *bus, int phy_addr,
+			     int reg, u16 value)
+{
+	struct net_device *netdev = bus->priv;
+	struct et131x_adapter *adapter = netdev_priv(netdev);
+
+	return et131x_mii_write(adapter, phy_addr, reg, value);
+}
+
+/*	et1310_phy_power_switch	-	PHY power control
+ *	@adapter: device to control
+ *	@down: true for off/false for back on
+ *
+ *	one hundred, ten, one thousand megs
+ *	How would you like to have your LAN accessed
+ *	Can't you see that this code processed
+ *	Phy power, phy power..
+ */
+static void et1310_phy_power_switch(struct et131x_adapter *adapter, bool down)
+{
+	u16 data;
+	struct  phy_device *phydev = adapter->netdev->phydev;
+
+	et131x_mii_read(adapter, MII_BMCR, &data);
+	data &= ~BMCR_PDOWN;
+	if (down)
+		data |= BMCR_PDOWN;
+	et131x_mii_write(adapter, phydev->mdio.addr, MII_BMCR, data);
+}
+
+/* et131x_xcvr_init - Init the phy if we are setting it into force mode */
+static void et131x_xcvr_init(struct et131x_adapter *adapter)
+{
+	u16 lcr2;
+	struct  phy_device *phydev = adapter->netdev->phydev;
+
+	/* Set the LED behavior such that LED 1 indicates speed (off =
+	 * 10Mbits, blink = 100Mbits, on = 1000Mbits) and LED 2 indicates
+	 * link and activity (on for link, blink off for activity).
+	 *
+	 * NOTE: Some customizations have been added here for specific
+	 * vendors; The LED behavior is now determined by vendor data in the
+	 * EEPROM. However, the above description is the default.
+	 */
+	if ((adapter->eeprom_data[1] & 0x4) == 0) {
+		et131x_mii_read(adapter, PHY_LED_2, &lcr2);
+
+		lcr2 &= (ET_LED2_LED_100TX | ET_LED2_LED_1000T);
+		lcr2 |= (LED_VAL_LINKON_ACTIVE << LED_LINK_SHIFT);
+
+		if ((adapter->eeprom_data[1] & 0x8) == 0)
+			lcr2 |= (LED_VAL_1000BT_100BTX << LED_TXRX_SHIFT);
+		else
+			lcr2 |= (LED_VAL_LINKON << LED_TXRX_SHIFT);
+
+		et131x_mii_write(adapter, phydev->mdio.addr, PHY_LED_2, lcr2);
+	}
+}
+
+/* et131x_configure_global_regs	- configure JAGCore global regs */
+static void et131x_configure_global_regs(struct et131x_adapter *adapter)
+{
+	struct global_regs __iomem *regs = &adapter->regs->global;
+
+	writel(0, &regs->rxq_start_addr);
+	writel(INTERNAL_MEM_SIZE - 1, &regs->txq_end_addr);
+
+	if (adapter->registry_jumbo_packet < 2048) {
+		/* Tx / RxDMA and Tx/Rx MAC interfaces have a 1k word
+		 * block of RAM that the driver can split between Tx
+		 * and Rx as it desires.  Our default is to split it
+		 * 50/50:
+		 */
+		writel(PARM_RX_MEM_END_DEF, &regs->rxq_end_addr);
+		writel(PARM_RX_MEM_END_DEF + 1, &regs->txq_start_addr);
+	} else if (adapter->registry_jumbo_packet < 8192) {
+		/* For jumbo packets > 2k but < 8k, split 50-50. */
+		writel(INTERNAL_MEM_RX_OFFSET, &regs->rxq_end_addr);
+		writel(INTERNAL_MEM_RX_OFFSET + 1, &regs->txq_start_addr);
+	} else {
+		/* 9216 is the only packet size greater than 8k that
+		 * is available. The Tx buffer has to be big enough
+		 * for one whole packet on the Tx side. We'll make
+		 * the Tx 9408, and give the rest to Rx
+		 */
+		writel(0x01b3, &regs->rxq_end_addr);
+		writel(0x01b4, &regs->txq_start_addr);
+	}
+
+	/* Initialize the loopback register. Disable all loopbacks. */
+	writel(0, &regs->loopback);
+
+	writel(0, &regs->msi_config);
+
+	/* By default, disable the watchdog timer.  It will be enabled when
+	 * a packet is queued.
+	 */
+	writel(0, &regs->watchdog_timer);
+}
+
+/* et131x_config_rx_dma_regs - Start of Rx_DMA init sequence */
+static void et131x_config_rx_dma_regs(struct et131x_adapter *adapter)
+{
+	struct rxdma_regs __iomem *rx_dma = &adapter->regs->rxdma;
+	struct rx_ring *rx_local = &adapter->rx_ring;
+	struct fbr_desc *fbr_entry;
+	u32 entry;
+	u32 psr_num_des;
+	unsigned long flags;
+	u8 id;
+
+	et131x_rx_dma_disable(adapter);
+
+	/* Load the completion writeback physical address */
+	writel(upper_32_bits(rx_local->rx_status_bus), &rx_dma->dma_wb_base_hi);
+	writel(lower_32_bits(rx_local->rx_status_bus), &rx_dma->dma_wb_base_lo);
+
+	memset(rx_local->rx_status_block, 0, sizeof(struct rx_status_block));
+
+	/* Set the address and parameters of the packet status ring */
+	writel(upper_32_bits(rx_local->ps_ring_physaddr), &rx_dma->psr_base_hi);
+	writel(lower_32_bits(rx_local->ps_ring_physaddr), &rx_dma->psr_base_lo);
+	writel(rx_local->psr_entries - 1, &rx_dma->psr_num_des);
+	writel(0, &rx_dma->psr_full_offset);
+
+	psr_num_des = readl(&rx_dma->psr_num_des) & ET_RXDMA_PSR_NUM_DES_MASK;
+	writel((psr_num_des * LO_MARK_PERCENT_FOR_PSR) / 100,
+	       &rx_dma->psr_min_des);
+
+	spin_lock_irqsave(&adapter->rcv_lock, flags);
+
+	/* These local variables track the PSR in the adapter structure */
+	rx_local->local_psr_full = 0;
+
+	for (id = 0; id < NUM_FBRS; id++) {
+		u32 __iomem *num_des;
+		u32 __iomem *full_offset;
+		u32 __iomem *min_des;
+		u32 __iomem *base_hi;
+		u32 __iomem *base_lo;
+		struct fbr_lookup *fbr = rx_local->fbr[id];
+
+		if (id == 0) {
+			num_des = &rx_dma->fbr0_num_des;
+			full_offset = &rx_dma->fbr0_full_offset;
+			min_des = &rx_dma->fbr0_min_des;
+			base_hi = &rx_dma->fbr0_base_hi;
+			base_lo = &rx_dma->fbr0_base_lo;
+		} else {
+			num_des = &rx_dma->fbr1_num_des;
+			full_offset = &rx_dma->fbr1_full_offset;
+			min_des = &rx_dma->fbr1_min_des;
+			base_hi = &rx_dma->fbr1_base_hi;
+			base_lo = &rx_dma->fbr1_base_lo;
+		}
+
+		/* Now's the best time to initialize FBR contents */
+		fbr_entry = fbr->ring_virtaddr;
+		for (entry = 0; entry < fbr->num_entries; entry++) {
+			fbr_entry->addr_hi = fbr->bus_high[entry];
+			fbr_entry->addr_lo = fbr->bus_low[entry];
+			fbr_entry->word2 = entry;
+			fbr_entry++;
+		}
+
+		/* Set the address and parameters of Free buffer ring 1 and 0 */
+		writel(upper_32_bits(fbr->ring_physaddr), base_hi);
+		writel(lower_32_bits(fbr->ring_physaddr), base_lo);
+		writel(fbr->num_entries - 1, num_des);
+		writel(ET_DMA10_WRAP, full_offset);
+
+		/* This variable tracks the free buffer ring 1 full position,
+		 * so it has to match the above.
+		 */
+		fbr->local_full = ET_DMA10_WRAP;
+		writel(((fbr->num_entries * LO_MARK_PERCENT_FOR_RX) / 100) - 1,
+		       min_des);
+	}
+
+	/* Program the number of packets we will receive before generating an
+	 * interrupt.
+	 * For version B silicon, this value gets updated once autoneg is
+	 *complete.
+	 */
+	writel(PARM_RX_NUM_BUFS_DEF, &rx_dma->num_pkt_done);
+
+	/* The "time_done" is not working correctly to coalesce interrupts
+	 * after a given time period, but rather is giving us an interrupt
+	 * regardless of whether we have received packets.
+	 * This value gets updated once autoneg is complete.
+	 */
+	writel(PARM_RX_TIME_INT_DEF, &rx_dma->max_pkt_time);
+
+	spin_unlock_irqrestore(&adapter->rcv_lock, flags);
+}
+
+/* et131x_config_tx_dma_regs - Set up the tx dma section of the JAGCore.
+ *
+ * Configure the transmit engine with the ring buffers we have created
+ * and prepare it for use.
+ */
+static void et131x_config_tx_dma_regs(struct et131x_adapter *adapter)
+{
+	struct txdma_regs __iomem *txdma = &adapter->regs->txdma;
+	struct tx_ring *tx_ring = &adapter->tx_ring;
+
+	/* Load the hardware with the start of the transmit descriptor ring. */
+	writel(upper_32_bits(tx_ring->tx_desc_ring_pa), &txdma->pr_base_hi);
+	writel(lower_32_bits(tx_ring->tx_desc_ring_pa), &txdma->pr_base_lo);
+
+	/* Initialise the transmit DMA engine */
+	writel(NUM_DESC_PER_RING_TX - 1, &txdma->pr_num_des);
+
+	/* Load the completion writeback physical address */
+	writel(upper_32_bits(tx_ring->tx_status_pa), &txdma->dma_wb_base_hi);
+	writel(lower_32_bits(tx_ring->tx_status_pa), &txdma->dma_wb_base_lo);
+
+	*tx_ring->tx_status = 0;
+
+	writel(0, &txdma->service_request);
+	tx_ring->send_idx = 0;
+}
+
+/* et131x_adapter_setup - Set the adapter up as per cassini+ documentation */
+static void et131x_adapter_setup(struct et131x_adapter *adapter)
+{
+	et131x_configure_global_regs(adapter);
+	et1310_config_mac_regs1(adapter);
+
+	/* Configure the MMC registers */
+	/* All we need to do is initialize the Memory Control Register */
+	writel(ET_MMC_ENABLE, &adapter->regs->mmc.mmc_ctrl);
+
+	et1310_config_rxmac_regs(adapter);
+	et1310_config_txmac_regs(adapter);
+
+	et131x_config_rx_dma_regs(adapter);
+	et131x_config_tx_dma_regs(adapter);
+
+	et1310_config_macstat_regs(adapter);
+
+	et1310_phy_power_switch(adapter, 0);
+	et131x_xcvr_init(adapter);
+}
+
+/* et131x_soft_reset - Issue soft reset to the hardware, complete for ET1310 */
+static void et131x_soft_reset(struct et131x_adapter *adapter)
+{
+	u32 reg;
+
+	/* Disable MAC Core */
+	reg = ET_MAC_CFG1_SOFT_RESET | ET_MAC_CFG1_SIM_RESET |
+	      ET_MAC_CFG1_RESET_RXMC | ET_MAC_CFG1_RESET_TXMC |
+	      ET_MAC_CFG1_RESET_RXFUNC | ET_MAC_CFG1_RESET_TXFUNC;
+	writel(reg, &adapter->regs->mac.cfg1);
+
+	reg = ET_RESET_ALL;
+	writel(reg, &adapter->regs->global.sw_reset);
+
+	reg = ET_MAC_CFG1_RESET_RXMC | ET_MAC_CFG1_RESET_TXMC |
+	      ET_MAC_CFG1_RESET_RXFUNC | ET_MAC_CFG1_RESET_TXFUNC;
+	writel(reg, &adapter->regs->mac.cfg1);
+	writel(0, &adapter->regs->mac.cfg1);
+}
+
+static void et131x_enable_interrupts(struct et131x_adapter *adapter)
+{
+	u32 mask;
+
+	if (adapter->flow == FLOW_TXONLY || adapter->flow == FLOW_BOTH)
+		mask = INT_MASK_ENABLE;
+	else
+		mask = INT_MASK_ENABLE_NO_FLOW;
+
+	writel(mask, &adapter->regs->global.int_mask);
+}
+
+static void et131x_disable_interrupts(struct et131x_adapter *adapter)
+{
+	writel(INT_MASK_DISABLE, &adapter->regs->global.int_mask);
+}
+
+static void et131x_tx_dma_disable(struct et131x_adapter *adapter)
+{
+	/* Setup the transmit dma configuration register */
+	writel(ET_TXDMA_CSR_HALT | ET_TXDMA_SNGL_EPKT,
+	       &adapter->regs->txdma.csr);
+}
+
+static void et131x_enable_txrx(struct net_device *netdev)
+{
+	struct et131x_adapter *adapter = netdev_priv(netdev);
+
+	et131x_rx_dma_enable(adapter);
+	et131x_tx_dma_enable(adapter);
+
+	if (adapter->flags & FMP_ADAPTER_INTERRUPT_IN_USE)
+		et131x_enable_interrupts(adapter);
+
+	netif_start_queue(netdev);
+}
+
+static void et131x_disable_txrx(struct net_device *netdev)
+{
+	struct et131x_adapter *adapter = netdev_priv(netdev);
+
+	netif_stop_queue(netdev);
+
+	et131x_rx_dma_disable(adapter);
+	et131x_tx_dma_disable(adapter);
+
+	et131x_disable_interrupts(adapter);
+}
+
+static void et131x_init_send(struct et131x_adapter *adapter)
+{
+	int i;
+	struct tx_ring *tx_ring = &adapter->tx_ring;
+	struct tcb *tcb = tx_ring->tcb_ring;
+
+	tx_ring->tcb_qhead = tcb;
+
+	memset(tcb, 0, sizeof(struct tcb) * NUM_TCB);
+
+	for (i = 0; i < NUM_TCB; i++) {
+		tcb->next = tcb + 1;
+		tcb++;
+	}
+
+	tcb--;
+	tx_ring->tcb_qtail = tcb;
+	tcb->next = NULL;
+	/* Curr send queue should now be empty */
+	tx_ring->send_head = NULL;
+	tx_ring->send_tail = NULL;
+}
+
+/* et1310_enable_phy_coma
+ *
+ * driver receive an phy status change interrupt while in D0 and check that
+ * phy_status is down.
+ *
+ *          -- gate off JAGCore;
+ *          -- set gigE PHY in Coma mode
+ *          -- wake on phy_interrupt; Perform software reset JAGCore,
+ *             re-initialize jagcore and gigE PHY
+ */
+static void et1310_enable_phy_coma(struct et131x_adapter *adapter)
+{
+	u32 pmcsr = readl(&adapter->regs->global.pm_csr);
+
+	/* Stop sending packets. */
+	adapter->flags |= FMP_ADAPTER_LOWER_POWER;
+
+	/* Wait for outstanding Receive packets */
+	et131x_disable_txrx(adapter->netdev);
+
+	/* Gate off JAGCore 3 clock domains */
+	pmcsr &= ~ET_PMCSR_INIT;
+	writel(pmcsr, &adapter->regs->global.pm_csr);
+
+	/* Program gigE PHY in to Coma mode */
+	pmcsr |= ET_PM_PHY_SW_COMA;
+	writel(pmcsr, &adapter->regs->global.pm_csr);
+}
+
+static void et1310_disable_phy_coma(struct et131x_adapter *adapter)
+{
+	u32 pmcsr;
+
+	pmcsr = readl(&adapter->regs->global.pm_csr);
+
+	/* Disable phy_sw_coma register and re-enable JAGCore clocks */
+	pmcsr |= ET_PMCSR_INIT;
+	pmcsr &= ~ET_PM_PHY_SW_COMA;
+	writel(pmcsr, &adapter->regs->global.pm_csr);
+
+	/* Restore the GbE PHY speed and duplex modes;
+	 * Reset JAGCore; re-configure and initialize JAGCore and gigE PHY
+	 */
+
+	/* Re-initialize the send structures */
+	et131x_init_send(adapter);
+
+	/* Bring the device back to the state it was during init prior to
+	 * autonegotiation being complete.  This way, when we get the auto-neg
+	 * complete interrupt, we can complete init by calling ConfigMacREGS2.
+	 */
+	et131x_soft_reset(adapter);
+
+	et131x_adapter_setup(adapter);
+
+	/* Allow Tx to restart */
+	adapter->flags &= ~FMP_ADAPTER_LOWER_POWER;
+
+	et131x_enable_txrx(adapter->netdev);
+}
+
+static inline u32 bump_free_buff_ring(u32 *free_buff_ring, u32 limit)
+{
+	u32 tmp_free_buff_ring = *free_buff_ring;
+
+	tmp_free_buff_ring++;
+	/* This works for all cases where limit < 1024. The 1023 case
+	 * works because 1023++ is 1024 which means the if condition is not
+	 * taken but the carry of the bit into the wrap bit toggles the wrap
+	 * value correctly
+	 */
+	if ((tmp_free_buff_ring & ET_DMA10_MASK) > limit) {
+		tmp_free_buff_ring &= ~ET_DMA10_MASK;
+		tmp_free_buff_ring ^= ET_DMA10_WRAP;
+	}
+	/* For the 1023 case */
+	tmp_free_buff_ring &= (ET_DMA10_MASK | ET_DMA10_WRAP);
+	*free_buff_ring = tmp_free_buff_ring;
+	return tmp_free_buff_ring;
+}
+
+/* et131x_rx_dma_memory_alloc
+ *
+ * Allocates Free buffer ring 1 for sure, free buffer ring 0 if required,
+ * and the Packet Status Ring.
+ */
+static int et131x_rx_dma_memory_alloc(struct et131x_adapter *adapter)
+{
+	u8 id;
+	u32 i, j;
+	u32 bufsize;
+	u32 psr_size;
+	u32 fbr_chunksize;
+	struct rx_ring *rx_ring = &adapter->rx_ring;
+	struct fbr_lookup *fbr;
+
+	/* Alloc memory for the lookup table */
+	rx_ring->fbr[0] = kzalloc(sizeof(*fbr), GFP_KERNEL);
+	if (rx_ring->fbr[0] == NULL)
+		return -ENOMEM;
+	rx_ring->fbr[1] = kzalloc(sizeof(*fbr), GFP_KERNEL);
+	if (rx_ring->fbr[1] == NULL)
+		return -ENOMEM;
+
+	/* The first thing we will do is configure the sizes of the buffer
+	 * rings. These will change based on jumbo packet support.  Larger
+	 * jumbo packets increases the size of each entry in FBR0, and the
+	 * number of entries in FBR0, while at the same time decreasing the
+	 * number of entries in FBR1.
+	 *
+	 * FBR1 holds "large" frames, FBR0 holds "small" frames.  If FBR1
+	 * entries are huge in order to accommodate a "jumbo" frame, then it
+	 * will have less entries.  Conversely, FBR1 will now be relied upon
+	 * to carry more "normal" frames, thus it's entry size also increases
+	 * and the number of entries goes up too (since it now carries
+	 * "small" + "regular" packets.
+	 *
+	 * In this scheme, we try to maintain 512 entries between the two
+	 * rings. Also, FBR1 remains a constant size - when it's size doubles
+	 * the number of entries halves.  FBR0 increases in size, however.
+	 */
+	if (adapter->registry_jumbo_packet < 2048) {
+		rx_ring->fbr[0]->buffsize = 256;
+		rx_ring->fbr[0]->num_entries = 512;
+		rx_ring->fbr[1]->buffsize = 2048;
+		rx_ring->fbr[1]->num_entries = 512;
+	} else if (adapter->registry_jumbo_packet < 4096) {
+		rx_ring->fbr[0]->buffsize = 512;
+		rx_ring->fbr[0]->num_entries = 1024;
+		rx_ring->fbr[1]->buffsize = 4096;
+		rx_ring->fbr[1]->num_entries = 512;
+	} else {
+		rx_ring->fbr[0]->buffsize = 1024;
+		rx_ring->fbr[0]->num_entries = 768;
+		rx_ring->fbr[1]->buffsize = 16384;
+		rx_ring->fbr[1]->num_entries = 128;
+	}
+
+	rx_ring->psr_entries = rx_ring->fbr[0]->num_entries +
+			       rx_ring->fbr[1]->num_entries;
+
+	for (id = 0; id < NUM_FBRS; id++) {
+		fbr = rx_ring->fbr[id];
+		/* Allocate an area of memory for Free Buffer Ring */
+		bufsize = sizeof(struct fbr_desc) * fbr->num_entries;
+		fbr->ring_virtaddr = dma_alloc_coherent(&adapter->pdev->dev,
+							bufsize,
+							&fbr->ring_physaddr,
+							GFP_KERNEL);
+		if (!fbr->ring_virtaddr) {
+			dev_err(&adapter->pdev->dev,
+				"Cannot alloc memory for Free Buffer Ring %d\n",
+				id);
+			return -ENOMEM;
+		}
+	}
+
+	for (id = 0; id < NUM_FBRS; id++) {
+		fbr = rx_ring->fbr[id];
+		fbr_chunksize = (FBR_CHUNKS * fbr->buffsize);
+
+		for (i = 0; i < fbr->num_entries / FBR_CHUNKS; i++) {
+			dma_addr_t fbr_physaddr;
+
+			fbr->mem_virtaddrs[i] = dma_alloc_coherent(
+					&adapter->pdev->dev, fbr_chunksize,
+					&fbr->mem_physaddrs[i],
+					GFP_KERNEL);
+
+			if (!fbr->mem_virtaddrs[i]) {
+				dev_err(&adapter->pdev->dev,
+					"Could not alloc memory\n");
+				return -ENOMEM;
+			}
+
+			/* See NOTE in "Save Physical Address" comment above */
+			fbr_physaddr = fbr->mem_physaddrs[i];
+
+			for (j = 0; j < FBR_CHUNKS; j++) {
+				u32 k = (i * FBR_CHUNKS) + j;
+
+				/* Save the Virtual address of this index for
+				 * quick access later
+				 */
+				fbr->virt[k] = (u8 *)fbr->mem_virtaddrs[i] +
+						   (j * fbr->buffsize);
+
+				/* now store the physical address in the
+				 * descriptor so the device can access it
+				 */
+				fbr->bus_high[k] = upper_32_bits(fbr_physaddr);
+				fbr->bus_low[k] = lower_32_bits(fbr_physaddr);
+				fbr_physaddr += fbr->buffsize;
+			}
+		}
+	}
+
+	/* Allocate an area of memory for FIFO of Packet Status ring entries */
+	psr_size = sizeof(struct pkt_stat_desc) * rx_ring->psr_entries;
+
+	rx_ring->ps_ring_virtaddr = dma_alloc_coherent(&adapter->pdev->dev,
+						  psr_size,
+						  &rx_ring->ps_ring_physaddr,
+						  GFP_KERNEL);
+
+	if (!rx_ring->ps_ring_virtaddr) {
+		dev_err(&adapter->pdev->dev,
+			"Cannot alloc memory for Packet Status Ring\n");
+		return -ENOMEM;
+	}
+
+	/* Allocate an area of memory for writeback of status information */
+	rx_ring->rx_status_block = dma_alloc_coherent(&adapter->pdev->dev,
+					    sizeof(struct rx_status_block),
+					    &rx_ring->rx_status_bus,
+					    GFP_KERNEL);
+	if (!rx_ring->rx_status_block) {
+		dev_err(&adapter->pdev->dev,
+			"Cannot alloc memory for Status Block\n");
+		return -ENOMEM;
+	}
+	rx_ring->num_rfd = NIC_DEFAULT_NUM_RFD;
+
+	/* The RFDs are going to be put on lists later on, so initialize the
+	 * lists now.
+	 */
+	INIT_LIST_HEAD(&rx_ring->recv_list);
+	return 0;
+}
+
+static void et131x_rx_dma_memory_free(struct et131x_adapter *adapter)
+{
+	u8 id;
+	u32 ii;
+	u32 bufsize;
+	u32 psr_size;
+	struct rfd *rfd;
+	struct rx_ring *rx_ring = &adapter->rx_ring;
+	struct fbr_lookup *fbr;
+
+	/* Free RFDs and associated packet descriptors */
+	WARN_ON(rx_ring->num_ready_recv != rx_ring->num_rfd);
+
+	while (!list_empty(&rx_ring->recv_list)) {
+		rfd = list_entry(rx_ring->recv_list.next,
+				 struct rfd, list_node);
+
+		list_del(&rfd->list_node);
+		rfd->skb = NULL;
+		kfree(rfd);
+	}
+
+	/* Free Free Buffer Rings */
+	for (id = 0; id < NUM_FBRS; id++) {
+		fbr = rx_ring->fbr[id];
+
+		if (!fbr || !fbr->ring_virtaddr)
+			continue;
+
+		/* First the packet memory */
+		for (ii = 0; ii < fbr->num_entries / FBR_CHUNKS; ii++) {
+			if (fbr->mem_virtaddrs[ii]) {
+				bufsize = fbr->buffsize * FBR_CHUNKS;
+
+				dma_free_coherent(&adapter->pdev->dev,
+						  bufsize,
+						  fbr->mem_virtaddrs[ii],
+						  fbr->mem_physaddrs[ii]);
+
+				fbr->mem_virtaddrs[ii] = NULL;
+			}
+		}
+
+		bufsize = sizeof(struct fbr_desc) * fbr->num_entries;
+
+		dma_free_coherent(&adapter->pdev->dev,
+				  bufsize,
+				  fbr->ring_virtaddr,
+				  fbr->ring_physaddr);
+
+		fbr->ring_virtaddr = NULL;
+	}
+
+	/* Free Packet Status Ring */
+	if (rx_ring->ps_ring_virtaddr) {
+		psr_size = sizeof(struct pkt_stat_desc) * rx_ring->psr_entries;
+
+		dma_free_coherent(&adapter->pdev->dev, psr_size,
+				  rx_ring->ps_ring_virtaddr,
+				  rx_ring->ps_ring_physaddr);
+
+		rx_ring->ps_ring_virtaddr = NULL;
+	}
+
+	/* Free area of memory for the writeback of status information */
+	if (rx_ring->rx_status_block) {
+		dma_free_coherent(&adapter->pdev->dev,
+				  sizeof(struct rx_status_block),
+				  rx_ring->rx_status_block,
+				  rx_ring->rx_status_bus);
+		rx_ring->rx_status_block = NULL;
+	}
+
+	/* Free the FBR Lookup Table */
+	kfree(rx_ring->fbr[0]);
+	kfree(rx_ring->fbr[1]);
+
+	/* Reset Counters */
+	rx_ring->num_ready_recv = 0;
+}
+
+/* et131x_init_recv - Initialize receive data structures */
+static int et131x_init_recv(struct et131x_adapter *adapter)
+{
+	struct rfd *rfd;
+	u32 rfdct;
+	struct rx_ring *rx_ring = &adapter->rx_ring;
+
+	/* Setup each RFD */
+	for (rfdct = 0; rfdct < rx_ring->num_rfd; rfdct++) {
+		rfd = kzalloc(sizeof(*rfd), GFP_ATOMIC | GFP_DMA);
+		if (!rfd)
+			return -ENOMEM;
+
+		rfd->skb = NULL;
+
+		/* Add this RFD to the recv_list */
+		list_add_tail(&rfd->list_node, &rx_ring->recv_list);
+
+		/* Increment the available RFD's */
+		rx_ring->num_ready_recv++;
+	}
+
+	return 0;
+}
+
+/* et131x_set_rx_dma_timer - Set the heartbeat timer according to line rate */
+static void et131x_set_rx_dma_timer(struct et131x_adapter *adapter)
+{
+	struct phy_device *phydev = adapter->netdev->phydev;
+
+	/* For version B silicon, we do not use the RxDMA timer for 10 and 100
+	 * Mbits/s line rates. We do not enable and RxDMA interrupt coalescing.
+	 */
+	if ((phydev->speed == SPEED_100) || (phydev->speed == SPEED_10)) {
+		writel(0, &adapter->regs->rxdma.max_pkt_time);
+		writel(1, &adapter->regs->rxdma.num_pkt_done);
+	}
+}
+
+/* nic_return_rfd - Recycle a RFD and put it back onto the receive list */
+static void nic_return_rfd(struct et131x_adapter *adapter, struct rfd *rfd)
+{
+	struct rx_ring *rx_local = &adapter->rx_ring;
+	struct rxdma_regs __iomem *rx_dma = &adapter->regs->rxdma;
+	u16 buff_index = rfd->bufferindex;
+	u8 ring_index = rfd->ringindex;
+	unsigned long flags;
+	struct fbr_lookup *fbr = rx_local->fbr[ring_index];
+
+	/* We don't use any of the OOB data besides status. Otherwise, we
+	 * need to clean up OOB data
+	 */
+	if (buff_index < fbr->num_entries) {
+		u32 free_buff_ring;
+		u32 __iomem *offset;
+		struct fbr_desc *next;
+
+		if (ring_index == 0)
+			offset = &rx_dma->fbr0_full_offset;
+		else
+			offset = &rx_dma->fbr1_full_offset;
+
+		next = (struct fbr_desc *)(fbr->ring_virtaddr) +
+		       INDEX10(fbr->local_full);
+
+		/* Handle the Free Buffer Ring advancement here. Write
+		 * the PA / Buffer Index for the returned buffer into
+		 * the oldest (next to be freed)FBR entry
+		 */
+		next->addr_hi = fbr->bus_high[buff_index];
+		next->addr_lo = fbr->bus_low[buff_index];
+		next->word2 = buff_index;
+
+		free_buff_ring = bump_free_buff_ring(&fbr->local_full,
+						     fbr->num_entries - 1);
+		writel(free_buff_ring, offset);
+	} else {
+		dev_err(&adapter->pdev->dev,
+			"%s illegal Buffer Index returned\n", __func__);
+	}
+
+	/* The processing on this RFD is done, so put it back on the tail of
+	 * our list
+	 */
+	spin_lock_irqsave(&adapter->rcv_lock, flags);
+	list_add_tail(&rfd->list_node, &rx_local->recv_list);
+	rx_local->num_ready_recv++;
+	spin_unlock_irqrestore(&adapter->rcv_lock, flags);
+
+	WARN_ON(rx_local->num_ready_recv > rx_local->num_rfd);
+}
+
+/* nic_rx_pkts - Checks the hardware for available packets
+ *
+ * Checks the hardware for available packets, using completion ring
+ * If packets are available, it gets an RFD from the recv_list, attaches
+ * the packet to it, puts the RFD in the RecvPendList, and also returns
+ * the pointer to the RFD.
+ */
+static struct rfd *nic_rx_pkts(struct et131x_adapter *adapter)
+{
+	struct rx_ring *rx_local = &adapter->rx_ring;
+	struct rx_status_block *status;
+	struct pkt_stat_desc *psr;
+	struct rfd *rfd;
+	unsigned long flags;
+	struct list_head *element;
+	u8 ring_index;
+	u16 buff_index;
+	u32 len;
+	u32 word0;
+	u32 word1;
+	struct sk_buff *skb;
+	struct fbr_lookup *fbr;
+
+	/* RX Status block is written by the DMA engine prior to every
+	 * interrupt. It contains the next to be used entry in the Packet
+	 * Status Ring, and also the two Free Buffer rings.
+	 */
+	status = rx_local->rx_status_block;
+	word1 = status->word1 >> 16;
+
+	/* Check the PSR and wrap bits do not match */
+	if ((word1 & 0x1FFF) == (rx_local->local_psr_full & 0x1FFF))
+		return NULL; /* Looks like this ring is not updated yet */
+
+	/* The packet status ring indicates that data is available. */
+	psr = (struct pkt_stat_desc *)(rx_local->ps_ring_virtaddr) +
+			(rx_local->local_psr_full & 0xFFF);
+
+	/* Grab any information that is required once the PSR is advanced,
+	 * since we can no longer rely on the memory being accurate
+	 */
+	len = psr->word1 & 0xFFFF;
+	ring_index = (psr->word1 >> 26) & 0x03;
+	fbr = rx_local->fbr[ring_index];
+	buff_index = (psr->word1 >> 16) & 0x3FF;
+	word0 = psr->word0;
+
+	/* Indicate that we have used this PSR entry. */
+	/* FIXME wrap 12 */
+	add_12bit(&rx_local->local_psr_full, 1);
+	if ((rx_local->local_psr_full & 0xFFF) > rx_local->psr_entries - 1) {
+		/* Clear psr full and toggle the wrap bit */
+		rx_local->local_psr_full &=  ~0xFFF;
+		rx_local->local_psr_full ^= 0x1000;
+	}
+
+	writel(rx_local->local_psr_full, &adapter->regs->rxdma.psr_full_offset);
+
+	if (ring_index > 1 || buff_index > fbr->num_entries - 1) {
+		/* Illegal buffer or ring index cannot be used by S/W*/
+		dev_err(&adapter->pdev->dev,
+			"NICRxPkts PSR Entry %d indicates length of %d and/or bad bi(%d)\n",
+			rx_local->local_psr_full & 0xFFF, len, buff_index);
+		return NULL;
+	}
+
+	/* Get and fill the RFD. */
+	spin_lock_irqsave(&adapter->rcv_lock, flags);
+
+	element = rx_local->recv_list.next;
+	rfd = list_entry(element, struct rfd, list_node);
+
+	if (!rfd) {
+		spin_unlock_irqrestore(&adapter->rcv_lock, flags);
+		return NULL;
+	}
+
+	list_del(&rfd->list_node);
+	rx_local->num_ready_recv--;
+
+	spin_unlock_irqrestore(&adapter->rcv_lock, flags);
+
+	rfd->bufferindex = buff_index;
+	rfd->ringindex = ring_index;
+
+	/* In V1 silicon, there is a bug which screws up filtering of runt
+	 * packets. Therefore runt packet filtering is disabled in the MAC and
+	 * the packets are dropped here. They are also counted here.
+	 */
+	if (len < (NIC_MIN_PACKET_SIZE + 4)) {
+		adapter->stats.rx_other_errs++;
+		rfd->len = 0;
+		goto out;
+	}
+
+	if ((word0 & ALCATEL_MULTICAST_PKT) && !(word0 & ALCATEL_BROADCAST_PKT))
+		adapter->stats.multicast_pkts_rcvd++;
+
+	rfd->len = len;
+
+	skb = dev_alloc_skb(rfd->len + 2);
+	if (!skb)
+		return NULL;
+
+	adapter->netdev->stats.rx_bytes += rfd->len;
+
+	skb_put_data(skb, fbr->virt[buff_index], rfd->len);
+
+	skb->protocol = eth_type_trans(skb, adapter->netdev);
+	skb->ip_summed = CHECKSUM_NONE;
+	netif_receive_skb(skb);
+
+out:
+	nic_return_rfd(adapter, rfd);
+	return rfd;
+}
+
+static int et131x_handle_recv_pkts(struct et131x_adapter *adapter, int budget)
+{
+	struct rfd *rfd = NULL;
+	int count = 0;
+	int limit = budget;
+	bool done = true;
+	struct rx_ring *rx_ring = &adapter->rx_ring;
+
+	if (budget > MAX_PACKETS_HANDLED)
+		limit = MAX_PACKETS_HANDLED;
+
+	/* Process up to available RFD's */
+	while (count < limit) {
+		if (list_empty(&rx_ring->recv_list)) {
+			WARN_ON(rx_ring->num_ready_recv != 0);
+			done = false;
+			break;
+		}
+
+		rfd = nic_rx_pkts(adapter);
+
+		if (rfd == NULL)
+			break;
+
+		/* Do not receive any packets until a filter has been set.
+		 * Do not receive any packets until we have link.
+		 * If length is zero, return the RFD in order to advance the
+		 * Free buffer ring.
+		 */
+		if (!adapter->packet_filter ||
+		    !netif_carrier_ok(adapter->netdev) ||
+		    rfd->len == 0)
+			continue;
+
+		adapter->netdev->stats.rx_packets++;
+
+		if (rx_ring->num_ready_recv < RFD_LOW_WATER_MARK)
+			dev_warn(&adapter->pdev->dev, "RFD's are running out\n");
+
+		count++;
+	}
+
+	if (count == limit || !done) {
+		rx_ring->unfinished_receives = true;
+		writel(PARM_TX_TIME_INT_DEF * NANO_IN_A_MICRO,
+		       &adapter->regs->global.watchdog_timer);
+	} else {
+		/* Watchdog timer will disable itself if appropriate. */
+		rx_ring->unfinished_receives = false;
+	}
+
+	return count;
+}
+
+/* et131x_tx_dma_memory_alloc
+ *
+ * Allocates memory that will be visible both to the device and to the CPU.
+ * The OS will pass us packets, pointers to which we will insert in the Tx
+ * Descriptor queue. The device will read this queue to find the packets in
+ * memory. The device will update the "status" in memory each time it xmits a
+ * packet.
+ */
+static int et131x_tx_dma_memory_alloc(struct et131x_adapter *adapter)
+{
+	int desc_size = 0;
+	struct tx_ring *tx_ring = &adapter->tx_ring;
+
+	/* Allocate memory for the TCB's (Transmit Control Block) */
+	tx_ring->tcb_ring = kcalloc(NUM_TCB, sizeof(struct tcb),
+				    GFP_KERNEL | GFP_DMA);
+	if (!tx_ring->tcb_ring)
+		return -ENOMEM;
+
+	desc_size = (sizeof(struct tx_desc) * NUM_DESC_PER_RING_TX);
+	tx_ring->tx_desc_ring = dma_alloc_coherent(&adapter->pdev->dev,
+						   desc_size,
+						   &tx_ring->tx_desc_ring_pa,
+						   GFP_KERNEL);
+	if (!tx_ring->tx_desc_ring) {
+		dev_err(&adapter->pdev->dev,
+			"Cannot alloc memory for Tx Ring\n");
+		return -ENOMEM;
+	}
+
+	tx_ring->tx_status = dma_alloc_coherent(&adapter->pdev->dev,
+						    sizeof(u32),
+						    &tx_ring->tx_status_pa,
+						    GFP_KERNEL);
+	if (!tx_ring->tx_status) {
+		dev_err(&adapter->pdev->dev,
+			"Cannot alloc memory for Tx status block\n");
+		return -ENOMEM;
+	}
+	return 0;
+}
+
+static void et131x_tx_dma_memory_free(struct et131x_adapter *adapter)
+{
+	int desc_size = 0;
+	struct tx_ring *tx_ring = &adapter->tx_ring;
+
+	if (tx_ring->tx_desc_ring) {
+		/* Free memory relating to Tx rings here */
+		desc_size = (sizeof(struct tx_desc) * NUM_DESC_PER_RING_TX);
+		dma_free_coherent(&adapter->pdev->dev,
+				  desc_size,
+				  tx_ring->tx_desc_ring,
+				  tx_ring->tx_desc_ring_pa);
+		tx_ring->tx_desc_ring = NULL;
+	}
+
+	/* Free memory for the Tx status block */
+	if (tx_ring->tx_status) {
+		dma_free_coherent(&adapter->pdev->dev,
+				  sizeof(u32),
+				  tx_ring->tx_status,
+				  tx_ring->tx_status_pa);
+
+		tx_ring->tx_status = NULL;
+	}
+	/* Free the memory for the tcb structures */
+	kfree(tx_ring->tcb_ring);
+}
+
+#define MAX_TX_DESC_PER_PKT 24
+
+/* nic_send_packet - NIC specific send handler for version B silicon. */
+static int nic_send_packet(struct et131x_adapter *adapter, struct tcb *tcb)
+{
+	u32 i;
+	struct tx_desc desc[MAX_TX_DESC_PER_PKT];
+	u32 frag = 0;
+	u32 thiscopy, remainder;
+	struct sk_buff *skb = tcb->skb;
+	u32 nr_frags = skb_shinfo(skb)->nr_frags + 1;
+	skb_frag_t *frags = &skb_shinfo(skb)->frags[0];
+	struct phy_device *phydev = adapter->netdev->phydev;
+	dma_addr_t dma_addr;
+	struct tx_ring *tx_ring = &adapter->tx_ring;
+
+	/* Part of the optimizations of this send routine restrict us to
+	 * sending 24 fragments at a pass.  In practice we should never see
+	 * more than 5 fragments.
+	 */
+
+	memset(desc, 0, sizeof(struct tx_desc) * (nr_frags + 1));
+
+	for (i = 0; i < nr_frags; i++) {
+		/* If there is something in this element, lets get a
+		 * descriptor from the ring and get the necessary data
+		 */
+		if (i == 0) {
+			/* If the fragments are smaller than a standard MTU,
+			 * then map them to a single descriptor in the Tx
+			 * Desc ring. However, if they're larger, as is
+			 * possible with support for jumbo packets, then
+			 * split them each across 2 descriptors.
+			 *
+			 * This will work until we determine why the hardware
+			 * doesn't seem to like large fragments.
+			 */
+			if (skb_headlen(skb) <= 1514) {
+				/* Low 16bits are length, high is vlan and
+				 * unused currently so zero
+				 */
+				desc[frag].len_vlan = skb_headlen(skb);
+				dma_addr = dma_map_single(&adapter->pdev->dev,
+							  skb->data,
+							  skb_headlen(skb),
+							  DMA_TO_DEVICE);
+				desc[frag].addr_lo = lower_32_bits(dma_addr);
+				desc[frag].addr_hi = upper_32_bits(dma_addr);
+				frag++;
+			} else {
+				desc[frag].len_vlan = skb_headlen(skb) / 2;
+				dma_addr = dma_map_single(&adapter->pdev->dev,
+							  skb->data,
+							  skb_headlen(skb) / 2,
+							  DMA_TO_DEVICE);
+				desc[frag].addr_lo = lower_32_bits(dma_addr);
+				desc[frag].addr_hi = upper_32_bits(dma_addr);
+				frag++;
+
+				desc[frag].len_vlan = skb_headlen(skb) / 2;
+				dma_addr = dma_map_single(&adapter->pdev->dev,
+							  skb->data +
+							  skb_headlen(skb) / 2,
+							  skb_headlen(skb) / 2,
+							  DMA_TO_DEVICE);
+				desc[frag].addr_lo = lower_32_bits(dma_addr);
+				desc[frag].addr_hi = upper_32_bits(dma_addr);
+				frag++;
+			}
+		} else {
+			desc[frag].len_vlan = skb_frag_size(&frags[i - 1]);
+			dma_addr = skb_frag_dma_map(&adapter->pdev->dev,
+						    &frags[i - 1],
+						    0,
+						    desc[frag].len_vlan,
+						    DMA_TO_DEVICE);
+			desc[frag].addr_lo = lower_32_bits(dma_addr);
+			desc[frag].addr_hi = upper_32_bits(dma_addr);
+			frag++;
+		}
+	}
+
+	if (phydev && phydev->speed == SPEED_1000) {
+		if (++tx_ring->since_irq == PARM_TX_NUM_BUFS_DEF) {
+			/* Last element & Interrupt flag */
+			desc[frag - 1].flags =
+				    TXDESC_FLAG_INTPROC | TXDESC_FLAG_LASTPKT;
+			tx_ring->since_irq = 0;
+		} else { /* Last element */
+			desc[frag - 1].flags = TXDESC_FLAG_LASTPKT;
+		}
+	} else {
+		desc[frag - 1].flags =
+				    TXDESC_FLAG_INTPROC | TXDESC_FLAG_LASTPKT;
+	}
+
+	desc[0].flags |= TXDESC_FLAG_FIRSTPKT;
+
+	tcb->index_start = tx_ring->send_idx;
+	tcb->stale = 0;
+
+	thiscopy = NUM_DESC_PER_RING_TX - INDEX10(tx_ring->send_idx);
+
+	if (thiscopy >= frag) {
+		remainder = 0;
+		thiscopy = frag;
+	} else {
+		remainder = frag - thiscopy;
+	}
+
+	memcpy(tx_ring->tx_desc_ring + INDEX10(tx_ring->send_idx),
+	       desc,
+	       sizeof(struct tx_desc) * thiscopy);
+
+	add_10bit(&tx_ring->send_idx, thiscopy);
+
+	if (INDEX10(tx_ring->send_idx) == 0 ||
+	    INDEX10(tx_ring->send_idx) == NUM_DESC_PER_RING_TX) {
+		tx_ring->send_idx &= ~ET_DMA10_MASK;
+		tx_ring->send_idx ^= ET_DMA10_WRAP;
+	}
+
+	if (remainder) {
+		memcpy(tx_ring->tx_desc_ring,
+		       desc + thiscopy,
+		       sizeof(struct tx_desc) * remainder);
+
+		add_10bit(&tx_ring->send_idx, remainder);
+	}
+
+	if (INDEX10(tx_ring->send_idx) == 0) {
+		if (tx_ring->send_idx)
+			tcb->index = NUM_DESC_PER_RING_TX - 1;
+		else
+			tcb->index = ET_DMA10_WRAP|(NUM_DESC_PER_RING_TX - 1);
+	} else {
+		tcb->index = tx_ring->send_idx - 1;
+	}
+
+	spin_lock(&adapter->tcb_send_qlock);
+
+	if (tx_ring->send_tail)
+		tx_ring->send_tail->next = tcb;
+	else
+		tx_ring->send_head = tcb;
+
+	tx_ring->send_tail = tcb;
+
+	WARN_ON(tcb->next != NULL);
+
+	tx_ring->used++;
+
+	spin_unlock(&adapter->tcb_send_qlock);
+
+	/* Write the new write pointer back to the device. */
+	writel(tx_ring->send_idx, &adapter->regs->txdma.service_request);
+
+	/* For Gig only, we use Tx Interrupt coalescing.  Enable the software
+	 * timer to wake us up if this packet isn't followed by N more.
+	 */
+	if (phydev && phydev->speed == SPEED_1000) {
+		writel(PARM_TX_TIME_INT_DEF * NANO_IN_A_MICRO,
+		       &adapter->regs->global.watchdog_timer);
+	}
+	return 0;
+}
+
+static int send_packet(struct sk_buff *skb, struct et131x_adapter *adapter)
+{
+	int status;
+	struct tcb *tcb;
+	unsigned long flags;
+	struct tx_ring *tx_ring = &adapter->tx_ring;
+
+	/* All packets must have at least a MAC address and a protocol type */
+	if (skb->len < ETH_HLEN)
+		return -EIO;
+
+	spin_lock_irqsave(&adapter->tcb_ready_qlock, flags);
+
+	tcb = tx_ring->tcb_qhead;
+
+	if (tcb == NULL) {
+		spin_unlock_irqrestore(&adapter->tcb_ready_qlock, flags);
+		return -ENOMEM;
+	}
+
+	tx_ring->tcb_qhead = tcb->next;
+
+	if (tx_ring->tcb_qhead == NULL)
+		tx_ring->tcb_qtail = NULL;
+
+	spin_unlock_irqrestore(&adapter->tcb_ready_qlock, flags);
+
+	tcb->skb = skb;
+	tcb->next = NULL;
+
+	status = nic_send_packet(adapter, tcb);
+
+	if (status != 0) {
+		spin_lock_irqsave(&adapter->tcb_ready_qlock, flags);
+
+		if (tx_ring->tcb_qtail)
+			tx_ring->tcb_qtail->next = tcb;
+		else
+			/* Apparently ready Q is empty. */
+			tx_ring->tcb_qhead = tcb;
+
+		tx_ring->tcb_qtail = tcb;
+		spin_unlock_irqrestore(&adapter->tcb_ready_qlock, flags);
+		return status;
+	}
+	WARN_ON(tx_ring->used > NUM_TCB);
+	return 0;
+}
+
+/* free_send_packet - Recycle a struct tcb */
+static inline void free_send_packet(struct et131x_adapter *adapter,
+				    struct tcb *tcb)
+{
+	unsigned long flags;
+	struct tx_desc *desc = NULL;
+	struct net_device_stats *stats = &adapter->netdev->stats;
+	struct tx_ring *tx_ring = &adapter->tx_ring;
+	u64  dma_addr;
+
+	if (tcb->skb) {
+		stats->tx_bytes += tcb->skb->len;
+
+		/* Iterate through the TX descriptors on the ring
+		 * corresponding to this packet and umap the fragments
+		 * they point to
+		 */
+		do {
+			desc = tx_ring->tx_desc_ring +
+			       INDEX10(tcb->index_start);
+
+			dma_addr = desc->addr_lo;
+			dma_addr |= (u64)desc->addr_hi << 32;
+
+			dma_unmap_single(&adapter->pdev->dev,
+					 dma_addr,
+					 desc->len_vlan, DMA_TO_DEVICE);
+
+			add_10bit(&tcb->index_start, 1);
+			if (INDEX10(tcb->index_start) >=
+							NUM_DESC_PER_RING_TX) {
+				tcb->index_start &= ~ET_DMA10_MASK;
+				tcb->index_start ^= ET_DMA10_WRAP;
+			}
+		} while (desc != tx_ring->tx_desc_ring + INDEX10(tcb->index));
+
+		dev_kfree_skb_any(tcb->skb);
+	}
+
+	memset(tcb, 0, sizeof(struct tcb));
+
+	/* Add the TCB to the Ready Q */
+	spin_lock_irqsave(&adapter->tcb_ready_qlock, flags);
+
+	stats->tx_packets++;
+
+	if (tx_ring->tcb_qtail)
+		tx_ring->tcb_qtail->next = tcb;
+	else /* Apparently ready Q is empty. */
+		tx_ring->tcb_qhead = tcb;
+
+	tx_ring->tcb_qtail = tcb;
+
+	spin_unlock_irqrestore(&adapter->tcb_ready_qlock, flags);
+	WARN_ON(tx_ring->used < 0);
+}
+
+/* et131x_free_busy_send_packets - Free and complete the stopped active sends */
+static void et131x_free_busy_send_packets(struct et131x_adapter *adapter)
+{
+	struct tcb *tcb;
+	unsigned long flags;
+	u32 freed = 0;
+	struct tx_ring *tx_ring = &adapter->tx_ring;
+
+	/* Any packets being sent? Check the first TCB on the send list */
+	spin_lock_irqsave(&adapter->tcb_send_qlock, flags);
+
+	tcb = tx_ring->send_head;
+
+	while (tcb != NULL && freed < NUM_TCB) {
+		struct tcb *next = tcb->next;
+
+		tx_ring->send_head = next;
+
+		if (next == NULL)
+			tx_ring->send_tail = NULL;
+
+		tx_ring->used--;
+
+		spin_unlock_irqrestore(&adapter->tcb_send_qlock, flags);
+
+		freed++;
+		free_send_packet(adapter, tcb);
+
+		spin_lock_irqsave(&adapter->tcb_send_qlock, flags);
+
+		tcb = tx_ring->send_head;
+	}
+
+	WARN_ON(freed == NUM_TCB);
+
+	spin_unlock_irqrestore(&adapter->tcb_send_qlock, flags);
+
+	tx_ring->used = 0;
+}
+
+/* et131x_handle_send_pkts
+ *
+ * Re-claim the send resources, complete sends and get more to send from
+ * the send wait queue.
+ */
+static void et131x_handle_send_pkts(struct et131x_adapter *adapter)
+{
+	unsigned long flags;
+	u32 serviced;
+	struct tcb *tcb;
+	u32 index;
+	struct tx_ring *tx_ring = &adapter->tx_ring;
+
+	serviced = readl(&adapter->regs->txdma.new_service_complete);
+	index = INDEX10(serviced);
+
+	/* Has the ring wrapped?  Process any descriptors that do not have
+	 * the same "wrap" indicator as the current completion indicator
+	 */
+	spin_lock_irqsave(&adapter->tcb_send_qlock, flags);
+
+	tcb = tx_ring->send_head;
+
+	while (tcb &&
+	       ((serviced ^ tcb->index) & ET_DMA10_WRAP) &&
+	       index < INDEX10(tcb->index)) {
+		tx_ring->used--;
+		tx_ring->send_head = tcb->next;
+		if (tcb->next == NULL)
+			tx_ring->send_tail = NULL;
+
+		spin_unlock_irqrestore(&adapter->tcb_send_qlock, flags);
+		free_send_packet(adapter, tcb);
+		spin_lock_irqsave(&adapter->tcb_send_qlock, flags);
+
+		/* Goto the next packet */
+		tcb = tx_ring->send_head;
+	}
+	while (tcb &&
+	       !((serviced ^ tcb->index) & ET_DMA10_WRAP) &&
+	       index > (tcb->index & ET_DMA10_MASK)) {
+		tx_ring->used--;
+		tx_ring->send_head = tcb->next;
+		if (tcb->next == NULL)
+			tx_ring->send_tail = NULL;
+
+		spin_unlock_irqrestore(&adapter->tcb_send_qlock, flags);
+		free_send_packet(adapter, tcb);
+		spin_lock_irqsave(&adapter->tcb_send_qlock, flags);
+
+		/* Goto the next packet */
+		tcb = tx_ring->send_head;
+	}
+
+	/* Wake up the queue when we hit a low-water mark */
+	if (tx_ring->used <= NUM_TCB / 3)
+		netif_wake_queue(adapter->netdev);
+
+	spin_unlock_irqrestore(&adapter->tcb_send_qlock, flags);
+}
+
+static int et131x_get_regs_len(struct net_device *netdev)
+{
+#define ET131X_REGS_LEN 256
+	return ET131X_REGS_LEN * sizeof(u32);
+}
+
+static void et131x_get_regs(struct net_device *netdev,
+			    struct ethtool_regs *regs, void *regs_data)
+{
+	struct et131x_adapter *adapter = netdev_priv(netdev);
+	struct address_map __iomem *aregs = adapter->regs;
+	u32 *regs_buff = regs_data;
+	u32 num = 0;
+	u16 tmp;
+
+	memset(regs_data, 0, et131x_get_regs_len(netdev));
+
+	regs->version = (1 << 24) | (adapter->pdev->revision << 16) |
+			adapter->pdev->device;
+
+	/* PHY regs */
+	et131x_mii_read(adapter, MII_BMCR, &tmp);
+	regs_buff[num++] = tmp;
+	et131x_mii_read(adapter, MII_BMSR, &tmp);
+	regs_buff[num++] = tmp;
+	et131x_mii_read(adapter, MII_PHYSID1, &tmp);
+	regs_buff[num++] = tmp;
+	et131x_mii_read(adapter, MII_PHYSID2, &tmp);
+	regs_buff[num++] = tmp;
+	et131x_mii_read(adapter, MII_ADVERTISE, &tmp);
+	regs_buff[num++] = tmp;
+	et131x_mii_read(adapter, MII_LPA, &tmp);
+	regs_buff[num++] = tmp;
+	et131x_mii_read(adapter, MII_EXPANSION, &tmp);
+	regs_buff[num++] = tmp;
+	/* Autoneg next page transmit reg */
+	et131x_mii_read(adapter, 0x07, &tmp);
+	regs_buff[num++] = tmp;
+	/* Link partner next page reg */
+	et131x_mii_read(adapter, 0x08, &tmp);
+	regs_buff[num++] = tmp;
+	et131x_mii_read(adapter, MII_CTRL1000, &tmp);
+	regs_buff[num++] = tmp;
+	et131x_mii_read(adapter, MII_STAT1000, &tmp);
+	regs_buff[num++] = tmp;
+	et131x_mii_read(adapter, 0x0b, &tmp);
+	regs_buff[num++] = tmp;
+	et131x_mii_read(adapter, 0x0c, &tmp);
+	regs_buff[num++] = tmp;
+	et131x_mii_read(adapter, MII_MMD_CTRL, &tmp);
+	regs_buff[num++] = tmp;
+	et131x_mii_read(adapter, MII_MMD_DATA, &tmp);
+	regs_buff[num++] = tmp;
+	et131x_mii_read(adapter, MII_ESTATUS, &tmp);
+	regs_buff[num++] = tmp;
+
+	et131x_mii_read(adapter, PHY_INDEX_REG, &tmp);
+	regs_buff[num++] = tmp;
+	et131x_mii_read(adapter, PHY_DATA_REG, &tmp);
+	regs_buff[num++] = tmp;
+	et131x_mii_read(adapter, PHY_MPHY_CONTROL_REG, &tmp);
+	regs_buff[num++] = tmp;
+	et131x_mii_read(adapter, PHY_LOOPBACK_CONTROL, &tmp);
+	regs_buff[num++] = tmp;
+	et131x_mii_read(adapter, PHY_LOOPBACK_CONTROL + 1, &tmp);
+	regs_buff[num++] = tmp;
+
+	et131x_mii_read(adapter, PHY_REGISTER_MGMT_CONTROL, &tmp);
+	regs_buff[num++] = tmp;
+	et131x_mii_read(adapter, PHY_CONFIG, &tmp);
+	regs_buff[num++] = tmp;
+	et131x_mii_read(adapter, PHY_PHY_CONTROL, &tmp);
+	regs_buff[num++] = tmp;
+	et131x_mii_read(adapter, PHY_INTERRUPT_MASK, &tmp);
+	regs_buff[num++] = tmp;
+	et131x_mii_read(adapter, PHY_INTERRUPT_STATUS, &tmp);
+	regs_buff[num++] = tmp;
+	et131x_mii_read(adapter, PHY_PHY_STATUS, &tmp);
+	regs_buff[num++] = tmp;
+	et131x_mii_read(adapter, PHY_LED_1, &tmp);
+	regs_buff[num++] = tmp;
+	et131x_mii_read(adapter, PHY_LED_2, &tmp);
+	regs_buff[num++] = tmp;
+
+	/* Global regs */
+	regs_buff[num++] = readl(&aregs->global.txq_start_addr);
+	regs_buff[num++] = readl(&aregs->global.txq_end_addr);
+	regs_buff[num++] = readl(&aregs->global.rxq_start_addr);
+	regs_buff[num++] = readl(&aregs->global.rxq_end_addr);
+	regs_buff[num++] = readl(&aregs->global.pm_csr);
+	regs_buff[num++] = adapter->stats.interrupt_status;
+	regs_buff[num++] = readl(&aregs->global.int_mask);
+	regs_buff[num++] = readl(&aregs->global.int_alias_clr_en);
+	regs_buff[num++] = readl(&aregs->global.int_status_alias);
+	regs_buff[num++] = readl(&aregs->global.sw_reset);
+	regs_buff[num++] = readl(&aregs->global.slv_timer);
+	regs_buff[num++] = readl(&aregs->global.msi_config);
+	regs_buff[num++] = readl(&aregs->global.loopback);
+	regs_buff[num++] = readl(&aregs->global.watchdog_timer);
+
+	/* TXDMA regs */
+	regs_buff[num++] = readl(&aregs->txdma.csr);
+	regs_buff[num++] = readl(&aregs->txdma.pr_base_hi);
+	regs_buff[num++] = readl(&aregs->txdma.pr_base_lo);
+	regs_buff[num++] = readl(&aregs->txdma.pr_num_des);
+	regs_buff[num++] = readl(&aregs->txdma.txq_wr_addr);
+	regs_buff[num++] = readl(&aregs->txdma.txq_wr_addr_ext);
+	regs_buff[num++] = readl(&aregs->txdma.txq_rd_addr);
+	regs_buff[num++] = readl(&aregs->txdma.dma_wb_base_hi);
+	regs_buff[num++] = readl(&aregs->txdma.dma_wb_base_lo);
+	regs_buff[num++] = readl(&aregs->txdma.service_request);
+	regs_buff[num++] = readl(&aregs->txdma.service_complete);
+	regs_buff[num++] = readl(&aregs->txdma.cache_rd_index);
+	regs_buff[num++] = readl(&aregs->txdma.cache_wr_index);
+	regs_buff[num++] = readl(&aregs->txdma.tx_dma_error);
+	regs_buff[num++] = readl(&aregs->txdma.desc_abort_cnt);
+	regs_buff[num++] = readl(&aregs->txdma.payload_abort_cnt);
+	regs_buff[num++] = readl(&aregs->txdma.writeback_abort_cnt);
+	regs_buff[num++] = readl(&aregs->txdma.desc_timeout_cnt);
+	regs_buff[num++] = readl(&aregs->txdma.payload_timeout_cnt);
+	regs_buff[num++] = readl(&aregs->txdma.writeback_timeout_cnt);
+	regs_buff[num++] = readl(&aregs->txdma.desc_error_cnt);
+	regs_buff[num++] = readl(&aregs->txdma.payload_error_cnt);
+	regs_buff[num++] = readl(&aregs->txdma.writeback_error_cnt);
+	regs_buff[num++] = readl(&aregs->txdma.dropped_tlp_cnt);
+	regs_buff[num++] = readl(&aregs->txdma.new_service_complete);
+	regs_buff[num++] = readl(&aregs->txdma.ethernet_packet_cnt);
+
+	/* RXDMA regs */
+	regs_buff[num++] = readl(&aregs->rxdma.csr);
+	regs_buff[num++] = readl(&aregs->rxdma.dma_wb_base_hi);
+	regs_buff[num++] = readl(&aregs->rxdma.dma_wb_base_lo);
+	regs_buff[num++] = readl(&aregs->rxdma.num_pkt_done);
+	regs_buff[num++] = readl(&aregs->rxdma.max_pkt_time);
+	regs_buff[num++] = readl(&aregs->rxdma.rxq_rd_addr);
+	regs_buff[num++] = readl(&aregs->rxdma.rxq_rd_addr_ext);
+	regs_buff[num++] = readl(&aregs->rxdma.rxq_wr_addr);
+	regs_buff[num++] = readl(&aregs->rxdma.psr_base_hi);
+	regs_buff[num++] = readl(&aregs->rxdma.psr_base_lo);
+	regs_buff[num++] = readl(&aregs->rxdma.psr_num_des);
+	regs_buff[num++] = readl(&aregs->rxdma.psr_avail_offset);
+	regs_buff[num++] = readl(&aregs->rxdma.psr_full_offset);
+	regs_buff[num++] = readl(&aregs->rxdma.psr_access_index);
+	regs_buff[num++] = readl(&aregs->rxdma.psr_min_des);
+	regs_buff[num++] = readl(&aregs->rxdma.fbr0_base_lo);
+	regs_buff[num++] = readl(&aregs->rxdma.fbr0_base_hi);
+	regs_buff[num++] = readl(&aregs->rxdma.fbr0_num_des);
+	regs_buff[num++] = readl(&aregs->rxdma.fbr0_avail_offset);
+	regs_buff[num++] = readl(&aregs->rxdma.fbr0_full_offset);
+	regs_buff[num++] = readl(&aregs->rxdma.fbr0_rd_index);
+	regs_buff[num++] = readl(&aregs->rxdma.fbr0_min_des);
+	regs_buff[num++] = readl(&aregs->rxdma.fbr1_base_lo);
+	regs_buff[num++] = readl(&aregs->rxdma.fbr1_base_hi);
+	regs_buff[num++] = readl(&aregs->rxdma.fbr1_num_des);
+	regs_buff[num++] = readl(&aregs->rxdma.fbr1_avail_offset);
+	regs_buff[num++] = readl(&aregs->rxdma.fbr1_full_offset);
+	regs_buff[num++] = readl(&aregs->rxdma.fbr1_rd_index);
+	regs_buff[num++] = readl(&aregs->rxdma.fbr1_min_des);
+}
+
+static void et131x_get_drvinfo(struct net_device *netdev,
+			       struct ethtool_drvinfo *info)
+{
+	struct et131x_adapter *adapter = netdev_priv(netdev);
+
+	strscpy(info->driver, DRIVER_NAME, sizeof(info->driver));
+	strscpy(info->bus_info, pci_name(adapter->pdev),
+		sizeof(info->bus_info));
+}
+
+static const struct ethtool_ops et131x_ethtool_ops = {
+	.get_drvinfo	= et131x_get_drvinfo,
+	.get_regs_len	= et131x_get_regs_len,
+	.get_regs	= et131x_get_regs,
+	.get_link	= ethtool_op_get_link,
+	.get_link_ksettings = phy_ethtool_get_link_ksettings,
+	.set_link_ksettings = phy_ethtool_set_link_ksettings,
+};
+
+/* et131x_hwaddr_init - set up the MAC Address */
+static void et131x_hwaddr_init(struct et131x_adapter *adapter)
+{
+	/* If have our default mac from init and no mac address from
+	 * EEPROM then we need to generate the last octet and set it on the
+	 * device
+	 */
+	if (is_zero_ether_addr(adapter->rom_addr)) {
+		/* We need to randomly generate the last octet so we
+		 * decrease our chances of setting the mac address to
+		 * same as another one of our cards in the system
+		 */
+		get_random_bytes(&adapter->addr[5], 1);
+		/* We have the default value in the register we are
+		 * working with so we need to copy the current
+		 * address into the permanent address
+		 */
+		ether_addr_copy(adapter->rom_addr, adapter->addr);
+	} else {
+		/* We do not have an override address, so set the
+		 * current address to the permanent address and add
+		 * it to the device
+		 */
+		ether_addr_copy(adapter->addr, adapter->rom_addr);
+	}
+}
+
+static int et131x_pci_init(struct et131x_adapter *adapter,
+			   struct pci_dev *pdev)
+{
+	u16 max_payload;
+	int i, rc;
+
+	rc = et131x_init_eeprom(adapter);
+	if (rc < 0)
+		goto out;
+
+	if (!pci_is_pcie(pdev)) {
+		dev_err(&pdev->dev, "Missing PCIe capabilities\n");
+		goto err_out;
+	}
+
+	/* Program the Ack/Nak latency and replay timers */
+	max_payload = pdev->pcie_mpss;
+
+	if (max_payload < 2) {
+		static const u16 acknak[2] = { 0x76, 0xD0 };
+		static const u16 replay[2] = { 0x1E0, 0x2ED };
+
+		if (pci_write_config_word(pdev, ET1310_PCI_ACK_NACK,
+					  acknak[max_payload])) {
+			dev_err(&pdev->dev,
+				"Could not write PCI config space for ACK/NAK\n");
+			goto err_out;
+		}
+		if (pci_write_config_word(pdev, ET1310_PCI_REPLAY,
+					  replay[max_payload])) {
+			dev_err(&pdev->dev,
+				"Could not write PCI config space for Replay Timer\n");
+			goto err_out;
+		}
+	}
+
+	/* l0s and l1 latency timers.  We are using default values.
+	 * Representing 001 for L0s and 010 for L1
+	 */
+	if (pci_write_config_byte(pdev, ET1310_PCI_L0L1LATENCY, 0x11)) {
+		dev_err(&pdev->dev,
+			"Could not write PCI config space for Latency Timers\n");
+		goto err_out;
+	}
+
+	/* Change the max read size to 2k */
+	if (pcie_set_readrq(pdev, 2048)) {
+		dev_err(&pdev->dev,
+			"Couldn't change PCI config space for Max read size\n");
+		goto err_out;
+	}
+
+	/* Get MAC address from config space if an eeprom exists, otherwise
+	 * the MAC address there will not be valid
+	 */
+	if (!adapter->has_eeprom) {
+		et131x_hwaddr_init(adapter);
+		return 0;
+	}
+
+	for (i = 0; i < ETH_ALEN; i++) {
+		if (pci_read_config_byte(pdev, ET1310_PCI_MAC_ADDRESS + i,
+					 adapter->rom_addr + i)) {
+			dev_err(&pdev->dev, "Could not read PCI config space for MAC address\n");
+			goto err_out;
+		}
+	}
+	ether_addr_copy(adapter->addr, adapter->rom_addr);
+out:
+	return rc;
+err_out:
+	rc = -EIO;
+	goto out;
+}
+
+/* et131x_error_timer_handler
+ * @data: timer-specific variable; here a pointer to our adapter structure
+ *
+ * The routine called when the error timer expires, to track the number of
+ * recurring errors.
+ */
+static void et131x_error_timer_handler(struct timer_list *t)
+{
+	struct et131x_adapter *adapter = from_timer(adapter, t, error_timer);
+	struct phy_device *phydev = adapter->netdev->phydev;
+
+	if (et1310_in_phy_coma(adapter)) {
+		/* Bring the device immediately out of coma, to
+		 * prevent it from sleeping indefinitely, this
+		 * mechanism could be improved!
+		 */
+		et1310_disable_phy_coma(adapter);
+		adapter->boot_coma = 20;
+	} else {
+		et1310_update_macstat_host_counters(adapter);
+	}
+
+	if (!phydev->link && adapter->boot_coma < 11)
+		adapter->boot_coma++;
+
+	if (adapter->boot_coma == 10) {
+		if (!phydev->link) {
+			if (!et1310_in_phy_coma(adapter)) {
+				/* NOTE - This was originally a 'sync with
+				 *  interrupt'. How to do that under Linux?
+				 */
+				et131x_enable_interrupts(adapter);
+				et1310_enable_phy_coma(adapter);
+			}
+		}
+	}
+
+	/* This is a periodic timer, so reschedule */
+	mod_timer(&adapter->error_timer, jiffies +
+		  msecs_to_jiffies(TX_ERROR_PERIOD));
+}
+
+static void et131x_adapter_memory_free(struct et131x_adapter *adapter)
+{
+	et131x_tx_dma_memory_free(adapter);
+	et131x_rx_dma_memory_free(adapter);
+}
+
+static int et131x_adapter_memory_alloc(struct et131x_adapter *adapter)
+{
+	int status;
+
+	status = et131x_tx_dma_memory_alloc(adapter);
+	if (status) {
+		dev_err(&adapter->pdev->dev,
+			"et131x_tx_dma_memory_alloc FAILED\n");
+		et131x_tx_dma_memory_free(adapter);
+		return status;
+	}
+
+	status = et131x_rx_dma_memory_alloc(adapter);
+	if (status) {
+		dev_err(&adapter->pdev->dev,
+			"et131x_rx_dma_memory_alloc FAILED\n");
+		et131x_adapter_memory_free(adapter);
+		return status;
+	}
+
+	status = et131x_init_recv(adapter);
+	if (status) {
+		dev_err(&adapter->pdev->dev, "et131x_init_recv FAILED\n");
+		et131x_adapter_memory_free(adapter);
+	}
+	return status;
+}
+
+static void et131x_adjust_link(struct net_device *netdev)
+{
+	struct et131x_adapter *adapter = netdev_priv(netdev);
+	struct  phy_device *phydev = netdev->phydev;
+
+	if (!phydev)
+		return;
+	if (phydev->link == adapter->link)
+		return;
+
+	/* Check to see if we are in coma mode and if
+	 * so, disable it because we will not be able
+	 * to read PHY values until we are out.
+	 */
+	if (et1310_in_phy_coma(adapter))
+		et1310_disable_phy_coma(adapter);
+
+	adapter->link = phydev->link;
+	phy_print_status(phydev);
+
+	if (phydev->link) {
+		adapter->boot_coma = 20;
+		if (phydev->speed == SPEED_10) {
+			u16 register18;
+
+			et131x_mii_read(adapter, PHY_MPHY_CONTROL_REG,
+					&register18);
+			et131x_mii_write(adapter, phydev->mdio.addr,
+					 PHY_MPHY_CONTROL_REG,
+					 register18 | 0x4);
+			et131x_mii_write(adapter, phydev->mdio.addr,
+					 PHY_INDEX_REG, register18 | 0x8402);
+			et131x_mii_write(adapter, phydev->mdio.addr,
+					 PHY_DATA_REG, register18 | 511);
+			et131x_mii_write(adapter, phydev->mdio.addr,
+					 PHY_MPHY_CONTROL_REG, register18);
+		}
+
+		et1310_config_flow_control(adapter);
+
+		if (phydev->speed == SPEED_1000 &&
+		    adapter->registry_jumbo_packet > 2048) {
+			u16 reg;
+
+			et131x_mii_read(adapter, PHY_CONFIG, &reg);
+			reg &= ~ET_PHY_CONFIG_TX_FIFO_DEPTH;
+			reg |= ET_PHY_CONFIG_FIFO_DEPTH_32;
+			et131x_mii_write(adapter, phydev->mdio.addr,
+					 PHY_CONFIG, reg);
+		}
+
+		et131x_set_rx_dma_timer(adapter);
+		et1310_config_mac_regs2(adapter);
+	} else {
+		adapter->boot_coma = 0;
+
+		if (phydev->speed == SPEED_10) {
+			u16 register18;
+
+			et131x_mii_read(adapter, PHY_MPHY_CONTROL_REG,
+					&register18);
+			et131x_mii_write(adapter, phydev->mdio.addr,
+					 PHY_MPHY_CONTROL_REG,
+					 register18 | 0x4);
+			et131x_mii_write(adapter, phydev->mdio.addr,
+					 PHY_INDEX_REG, register18 | 0x8402);
+			et131x_mii_write(adapter, phydev->mdio.addr,
+					 PHY_DATA_REG, register18 | 511);
+			et131x_mii_write(adapter, phydev->mdio.addr,
+					 PHY_MPHY_CONTROL_REG, register18);
+		}
+
+		et131x_free_busy_send_packets(adapter);
+		et131x_init_send(adapter);
+
+		/* Bring the device back to the state it was during
+		 * init prior to autonegotiation being complete. This
+		 * way, when we get the auto-neg complete interrupt,
+		 * we can complete init by calling config_mac_regs2.
+		 */
+		et131x_soft_reset(adapter);
+
+		et131x_adapter_setup(adapter);
+
+		et131x_disable_txrx(netdev);
+		et131x_enable_txrx(netdev);
+	}
+}
+
+static int et131x_mii_probe(struct net_device *netdev)
+{
+	struct et131x_adapter *adapter = netdev_priv(netdev);
+	struct  phy_device *phydev = NULL;
+
+	phydev = phy_find_first(adapter->mii_bus);
+	if (!phydev) {
+		dev_err(&adapter->pdev->dev, "no PHY found\n");
+		return -ENODEV;
+	}
+
+	phydev = phy_connect(netdev, phydev_name(phydev),
+			     &et131x_adjust_link, PHY_INTERFACE_MODE_MII);
+
+	if (IS_ERR(phydev)) {
+		dev_err(&adapter->pdev->dev, "Could not attach to PHY\n");
+		return PTR_ERR(phydev);
+	}
+
+	phy_set_max_speed(phydev, SPEED_100);
+
+	if (adapter->pdev->device != ET131X_PCI_DEVICE_ID_FAST)
+		phy_set_max_speed(phydev, SPEED_1000);
+
+	phydev->autoneg = AUTONEG_ENABLE;
+
+	phy_attached_info(phydev);
+
+	return 0;
+}
+
+static struct et131x_adapter *et131x_adapter_init(struct net_device *netdev,
+						  struct pci_dev *pdev)
+{
+	static const u8 default_mac[] = { 0x00, 0x05, 0x3d, 0x00, 0x02, 0x00 };
+
+	struct et131x_adapter *adapter;
+
+	adapter = netdev_priv(netdev);
+	adapter->pdev = pci_dev_get(pdev);
+	adapter->netdev = netdev;
+
+	spin_lock_init(&adapter->tcb_send_qlock);
+	spin_lock_init(&adapter->tcb_ready_qlock);
+	spin_lock_init(&adapter->rcv_lock);
+
+	adapter->registry_jumbo_packet = 1514;	/* 1514-9216 */
+
+	ether_addr_copy(adapter->addr, default_mac);
+
+	return adapter;
+}
+
+static void et131x_pci_remove(struct pci_dev *pdev)
+{
+	struct net_device *netdev = pci_get_drvdata(pdev);
+	struct et131x_adapter *adapter = netdev_priv(netdev);
+
+	unregister_netdev(netdev);
+	netif_napi_del(&adapter->napi);
+	phy_disconnect(netdev->phydev);
+	mdiobus_unregister(adapter->mii_bus);
+	mdiobus_free(adapter->mii_bus);
+
+	et131x_adapter_memory_free(adapter);
+	iounmap(adapter->regs);
+	pci_dev_put(pdev);
+
+	free_netdev(netdev);
+	pci_release_regions(pdev);
+	pci_disable_device(pdev);
+}
+
+static void et131x_up(struct net_device *netdev)
+{
+	et131x_enable_txrx(netdev);
+	phy_start(netdev->phydev);
+}
+
+static void et131x_down(struct net_device *netdev)
+{
+	/* Save the timestamp for the TX watchdog, prevent a timeout */
+	netif_trans_update(netdev);
+
+	phy_stop(netdev->phydev);
+	et131x_disable_txrx(netdev);
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int et131x_suspend(struct device *dev)
+{
+	struct pci_dev *pdev = to_pci_dev(dev);
+	struct net_device *netdev = pci_get_drvdata(pdev);
+
+	if (netif_running(netdev)) {
+		netif_device_detach(netdev);
+		et131x_down(netdev);
+		pci_save_state(pdev);
+	}
+
+	return 0;
+}
+
+static int et131x_resume(struct device *dev)
+{
+	struct pci_dev *pdev = to_pci_dev(dev);
+	struct net_device *netdev = pci_get_drvdata(pdev);
+
+	if (netif_running(netdev)) {
+		pci_restore_state(pdev);
+		et131x_up(netdev);
+		netif_device_attach(netdev);
+	}
+
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(et131x_pm_ops, et131x_suspend, et131x_resume);
+
+static irqreturn_t et131x_isr(int irq, void *dev_id)
+{
+	bool handled = true;
+	bool enable_interrupts = true;
+	struct net_device *netdev = dev_id;
+	struct et131x_adapter *adapter = netdev_priv(netdev);
+	struct address_map __iomem *iomem = adapter->regs;
+	struct rx_ring *rx_ring = &adapter->rx_ring;
+	struct tx_ring *tx_ring = &adapter->tx_ring;
+	u32 status;
+
+	if (!netif_device_present(netdev)) {
+		handled = false;
+		enable_interrupts = false;
+		goto out;
+	}
+
+	et131x_disable_interrupts(adapter);
+
+	status = readl(&adapter->regs->global.int_status);
+
+	if (adapter->flow == FLOW_TXONLY || adapter->flow == FLOW_BOTH)
+		status &= ~INT_MASK_ENABLE;
+	else
+		status &= ~INT_MASK_ENABLE_NO_FLOW;
+
+	/* Make sure this is our interrupt */
+	if (!status) {
+		handled = false;
+		et131x_enable_interrupts(adapter);
+		goto out;
+	}
+
+	/* This is our interrupt, so process accordingly */
+	if (status & ET_INTR_WATCHDOG) {
+		struct tcb *tcb = tx_ring->send_head;
+
+		if (tcb)
+			if (++tcb->stale > 1)
+				status |= ET_INTR_TXDMA_ISR;
+
+		if (rx_ring->unfinished_receives)
+			status |= ET_INTR_RXDMA_XFR_DONE;
+		else if (tcb == NULL)
+			writel(0, &adapter->regs->global.watchdog_timer);
+
+		status &= ~ET_INTR_WATCHDOG;
+	}
+
+	if (status & (ET_INTR_RXDMA_XFR_DONE | ET_INTR_TXDMA_ISR)) {
+		enable_interrupts = false;
+		napi_schedule(&adapter->napi);
+	}
+
+	status &= ~(ET_INTR_TXDMA_ISR | ET_INTR_RXDMA_XFR_DONE);
+
+	if (!status)
+		goto out;
+
+	if (status & ET_INTR_TXDMA_ERR) {
+		/* Following read also clears the register (COR) */
+		u32 txdma_err = readl(&iomem->txdma.tx_dma_error);
+
+		dev_warn(&adapter->pdev->dev,
+			 "TXDMA_ERR interrupt, error = %d\n",
+			 txdma_err);
+	}
+
+	if (status & (ET_INTR_RXDMA_FB_R0_LOW | ET_INTR_RXDMA_FB_R1_LOW)) {
+		/* This indicates the number of unused buffers in RXDMA free
+		 * buffer ring 0 is <= the limit you programmed. Free buffer
+		 * resources need to be returned.  Free buffers are consumed as
+		 * packets are passed from the network to the host. The host
+		 * becomes aware of the packets from the contents of the packet
+		 * status ring. This ring is queried when the packet done
+		 * interrupt occurs. Packets are then passed to the OS. When
+		 * the OS is done with the packets the resources can be
+		 * returned to the ET1310 for re-use. This interrupt is one
+		 * method of returning resources.
+		 */
+
+		/*  If the user has flow control on, then we will
+		 * send a pause packet, otherwise just exit
+		 */
+		if (adapter->flow == FLOW_TXONLY || adapter->flow == FLOW_BOTH) {
+			/* Tell the device to send a pause packet via the back
+			 * pressure register (bp req and bp xon/xoff)
+			 */
+			if (!et1310_in_phy_coma(adapter))
+				writel(3, &iomem->txmac.bp_ctrl);
+		}
+	}
+
+	/* Handle Packet Status Ring Low Interrupt */
+	if (status & ET_INTR_RXDMA_STAT_LOW) {
+		/* Same idea as with the two Free Buffer Rings. Packets going
+		 * from the network to the host each consume a free buffer
+		 * resource and a packet status resource. These resources are
+		 * passed to the OS. When the OS is done with the resources,
+		 * they need to be returned to the ET1310. This is one method
+		 * of returning the resources.
+		 */
+	}
+
+	if (status & ET_INTR_RXDMA_ERR) {
+		/* The rxdma_error interrupt is sent when a time-out on a
+		 * request issued by the JAGCore has occurred or a completion is
+		 * returned with an un-successful status. In both cases the
+		 * request is considered complete. The JAGCore will
+		 * automatically re-try the request in question. Normally
+		 * information on events like these are sent to the host using
+		 * the "Advanced Error Reporting" capability. This interrupt is
+		 * another way of getting similar information. The only thing
+		 * required is to clear the interrupt by reading the ISR in the
+		 * global resources. The JAGCore will do a re-try on the
+		 * request. Normally you should never see this interrupt. If
+		 * you start to see this interrupt occurring frequently then
+		 * something bad has occurred. A reset might be the thing to do.
+		 */
+		/* TRAP();*/
+
+		dev_warn(&adapter->pdev->dev, "RxDMA_ERR interrupt, error %x\n",
+			 readl(&iomem->txmac.tx_test));
+	}
+
+	/* Handle the Wake on LAN Event */
+	if (status & ET_INTR_WOL) {
+		/* This is a secondary interrupt for wake on LAN. The driver
+		 * should never see this, if it does, something serious is
+		 * wrong.
+		 */
+		dev_err(&adapter->pdev->dev, "WAKE_ON_LAN interrupt\n");
+	}
+
+	if (status & ET_INTR_TXMAC) {
+		u32 err = readl(&iomem->txmac.err);
+
+		/* When any of the errors occur and TXMAC generates an
+		 * interrupt to report these errors, it usually means that
+		 * TXMAC has detected an error in the data stream retrieved
+		 * from the on-chip Tx Q. All of these errors are catastrophic
+		 * and TXMAC won't be able to recover data when these errors
+		 * occur. In a nutshell, the whole Tx path will have to be reset
+		 * and re-configured afterwards.
+		 */
+		dev_warn(&adapter->pdev->dev, "TXMAC interrupt, error 0x%08x\n",
+			 err);
+
+		/* If we are debugging, we want to see this error, otherwise we
+		 * just want the device to be reset and continue
+		 */
+	}
+
+	if (status & ET_INTR_RXMAC) {
+		/* These interrupts are catastrophic to the device, what we need
+		 * to do is disable the interrupts and set the flag to cause us
+		 * to reset so we can solve this issue.
+		 */
+		dev_warn(&adapter->pdev->dev,
+			 "RXMAC interrupt, error 0x%08x.  Requesting reset\n",
+			 readl(&iomem->rxmac.err_reg));
+
+		dev_warn(&adapter->pdev->dev,
+			 "Enable 0x%08x, Diag 0x%08x\n",
+			 readl(&iomem->rxmac.ctrl),
+			 readl(&iomem->rxmac.rxq_diag));
+
+		/* If we are debugging, we want to see this error, otherwise we
+		 * just want the device to be reset and continue
+		 */
+	}
+
+	if (status & ET_INTR_MAC_STAT) {
+		/* This means at least one of the un-masked counters in the
+		 * MAC_STAT block has rolled over. Use this to maintain the top,
+		 * software managed bits of the counter(s).
+		 */
+		et1310_handle_macstat_interrupt(adapter);
+	}
+
+	if (status & ET_INTR_SLV_TIMEOUT) {
+		/* This means a timeout has occurred on a read or write request
+		 * to one of the JAGCore registers. The Global Resources block
+		 * has terminated the request and on a read request, returned a
+		 * "fake" value. The most likely reasons are: Bad Address or the
+		 * addressed module is in a power-down state and can't respond.
+		 */
+	}
+
+out:
+	if (enable_interrupts)
+		et131x_enable_interrupts(adapter);
+
+	return IRQ_RETVAL(handled);
+}
+
+static int et131x_poll(struct napi_struct *napi, int budget)
+{
+	struct et131x_adapter *adapter =
+		container_of(napi, struct et131x_adapter, napi);
+	int work_done = et131x_handle_recv_pkts(adapter, budget);
+
+	et131x_handle_send_pkts(adapter);
+
+	if (work_done < budget) {
+		napi_complete_done(&adapter->napi, work_done);
+		et131x_enable_interrupts(adapter);
+	}
+
+	return work_done;
+}
+
+/* et131x_stats - Return the current device statistics  */
+static struct net_device_stats *et131x_stats(struct net_device *netdev)
+{
+	struct et131x_adapter *adapter = netdev_priv(netdev);
+	struct net_device_stats *stats = &adapter->netdev->stats;
+	struct ce_stats *devstat = &adapter->stats;
+
+	stats->rx_errors = devstat->rx_length_errs +
+			   devstat->rx_align_errs +
+			   devstat->rx_crc_errs +
+			   devstat->rx_code_violations +
+			   devstat->rx_other_errs;
+	stats->tx_errors = devstat->tx_max_pkt_errs;
+	stats->multicast = devstat->multicast_pkts_rcvd;
+	stats->collisions = devstat->tx_collisions;
+
+	stats->rx_length_errors = devstat->rx_length_errs;
+	stats->rx_over_errors = devstat->rx_overflows;
+	stats->rx_crc_errors = devstat->rx_crc_errs;
+	stats->rx_dropped = devstat->rcvd_pkts_dropped;
+
+	/* NOTE: Not used, can't find analogous statistics */
+	/* stats->rx_frame_errors     = devstat->; */
+	/* stats->rx_fifo_errors      = devstat->; */
+	/* stats->rx_missed_errors    = devstat->; */
+
+	/* stats->tx_aborted_errors   = devstat->; */
+	/* stats->tx_carrier_errors   = devstat->; */
+	/* stats->tx_fifo_errors      = devstat->; */
+	/* stats->tx_heartbeat_errors = devstat->; */
+	/* stats->tx_window_errors    = devstat->; */
+	return stats;
+}
+
+static int et131x_open(struct net_device *netdev)
+{
+	struct et131x_adapter *adapter = netdev_priv(netdev);
+	struct pci_dev *pdev = adapter->pdev;
+	unsigned int irq = pdev->irq;
+	int result;
+
+	/* Start the timer to track NIC errors */
+	timer_setup(&adapter->error_timer, et131x_error_timer_handler, 0);
+	adapter->error_timer.expires = jiffies +
+		msecs_to_jiffies(TX_ERROR_PERIOD);
+	add_timer(&adapter->error_timer);
+
+	result = request_irq(irq, et131x_isr,
+			     IRQF_SHARED, netdev->name, netdev);
+	if (result) {
+		dev_err(&pdev->dev, "could not register IRQ %d\n", irq);
+		return result;
+	}
+
+	adapter->flags |= FMP_ADAPTER_INTERRUPT_IN_USE;
+
+	napi_enable(&adapter->napi);
+
+	et131x_up(netdev);
+
+	return result;
+}
+
+static int et131x_close(struct net_device *netdev)
+{
+	struct et131x_adapter *adapter = netdev_priv(netdev);
+
+	et131x_down(netdev);
+	napi_disable(&adapter->napi);
+
+	adapter->flags &= ~FMP_ADAPTER_INTERRUPT_IN_USE;
+	free_irq(adapter->pdev->irq, netdev);
+
+	/* Stop the error timer */
+	return del_timer_sync(&adapter->error_timer);
+}
+
+/* et131x_set_packet_filter - Configures the Rx Packet filtering */
+static int et131x_set_packet_filter(struct et131x_adapter *adapter)
+{
+	int filter = adapter->packet_filter;
+	u32 ctrl;
+	u32 pf_ctrl;
+
+	ctrl = readl(&adapter->regs->rxmac.ctrl);
+	pf_ctrl = readl(&adapter->regs->rxmac.pf_ctrl);
+
+	/* Default to disabled packet filtering */
+	ctrl |= 0x04;
+
+	/* Set us to be in promiscuous mode so we receive everything, this
+	 * is also true when we get a packet filter of 0
+	 */
+	if ((filter & ET131X_PACKET_TYPE_PROMISCUOUS) || filter == 0)
+		pf_ctrl &= ~7;	/* Clear filter bits */
+	else {
+		/* Set us up with Multicast packet filtering.  Three cases are
+		 * possible - (1) we have a multi-cast list, (2) we receive ALL
+		 * multicast entries or (3) we receive none.
+		 */
+		if (filter & ET131X_PACKET_TYPE_ALL_MULTICAST)
+			pf_ctrl &= ~2;	/* Multicast filter bit */
+		else {
+			et1310_setup_device_for_multicast(adapter);
+			pf_ctrl |= 2;
+			ctrl &= ~0x04;
+		}
+
+		/* Set us up with Unicast packet filtering */
+		if (filter & ET131X_PACKET_TYPE_DIRECTED) {
+			et1310_setup_device_for_unicast(adapter);
+			pf_ctrl |= 4;
+			ctrl &= ~0x04;
+		}
+
+		/* Set us up with Broadcast packet filtering */
+		if (filter & ET131X_PACKET_TYPE_BROADCAST) {
+			pf_ctrl |= 1;	/* Broadcast filter bit */
+			ctrl &= ~0x04;
+		} else {
+			pf_ctrl &= ~1;
+		}
+
+		/* Setup the receive mac configuration registers - Packet
+		 * Filter control + the enable / disable for packet filter
+		 * in the control reg.
+		 */
+		writel(pf_ctrl, &adapter->regs->rxmac.pf_ctrl);
+		writel(ctrl, &adapter->regs->rxmac.ctrl);
+	}
+	return 0;
+}
+
+static void et131x_multicast(struct net_device *netdev)
+{
+	struct et131x_adapter *adapter = netdev_priv(netdev);
+	int packet_filter;
+	struct netdev_hw_addr *ha;
+	int i;
+
+	/* Before we modify the platform-independent filter flags, store them
+	 * locally. This allows us to determine if anything's changed and if
+	 * we even need to bother the hardware
+	 */
+	packet_filter = adapter->packet_filter;
+
+	/* Clear the 'multicast' flag locally; because we only have a single
+	 * flag to check multicast, and multiple multicast addresses can be
+	 * set, this is the easiest way to determine if more than one
+	 * multicast address is being set.
+	 */
+	packet_filter &= ~ET131X_PACKET_TYPE_MULTICAST;
+
+	/* Check the net_device flags and set the device independent flags
+	 * accordingly
+	 */
+	if (netdev->flags & IFF_PROMISC)
+		adapter->packet_filter |= ET131X_PACKET_TYPE_PROMISCUOUS;
+	else
+		adapter->packet_filter &= ~ET131X_PACKET_TYPE_PROMISCUOUS;
+
+	if ((netdev->flags & IFF_ALLMULTI) ||
+	    (netdev_mc_count(netdev) > NIC_MAX_MCAST_LIST))
+		adapter->packet_filter |= ET131X_PACKET_TYPE_ALL_MULTICAST;
+
+	if (netdev_mc_count(netdev) < 1) {
+		adapter->packet_filter &= ~ET131X_PACKET_TYPE_ALL_MULTICAST;
+		adapter->packet_filter &= ~ET131X_PACKET_TYPE_MULTICAST;
+	} else {
+		adapter->packet_filter |= ET131X_PACKET_TYPE_MULTICAST;
+	}
+
+	/* Set values in the private adapter struct */
+	i = 0;
+	netdev_for_each_mc_addr(ha, netdev) {
+		if (i == NIC_MAX_MCAST_LIST)
+			break;
+		ether_addr_copy(adapter->multicast_list[i++], ha->addr);
+	}
+	adapter->multicast_addr_count = i;
+
+	/* Are the new flags different from the previous ones? If not, then no
+	 * action is required
+	 *
+	 * NOTE - This block will always update the multicast_list with the
+	 *        hardware, even if the addresses aren't the same.
+	 */
+	if (packet_filter != adapter->packet_filter)
+		et131x_set_packet_filter(adapter);
+}
+
+static netdev_tx_t et131x_tx(struct sk_buff *skb, struct net_device *netdev)
+{
+	struct et131x_adapter *adapter = netdev_priv(netdev);
+	struct tx_ring *tx_ring = &adapter->tx_ring;
+
+	/* This driver does not support TSO, it is very unlikely
+	 * this condition is true.
+	 */
+	if (unlikely(skb_shinfo(skb)->nr_frags > MAX_TX_DESC_PER_PKT - 2)) {
+		if (skb_linearize(skb))
+			goto drop_err;
+	}
+	/* stop the queue if it's getting full */
+	if (tx_ring->used >= NUM_TCB - 1 && !netif_queue_stopped(netdev))
+		netif_stop_queue(netdev);
+
+	/* Save the timestamp for the TX timeout watchdog */
+	netif_trans_update(netdev);
+
+	/* TCB is not available */
+	if (tx_ring->used >= NUM_TCB)
+		goto drop_err;
+
+	if ((adapter->flags & FMP_ADAPTER_FAIL_SEND_MASK) ||
+	    !netif_carrier_ok(netdev))
+		goto drop_err;
+
+	if (send_packet(skb, adapter))
+		goto drop_err;
+
+	return NETDEV_TX_OK;
+
+drop_err:
+	dev_kfree_skb_any(skb);
+	adapter->netdev->stats.tx_dropped++;
+	return NETDEV_TX_OK;
+}
+
+/* et131x_tx_timeout - Timeout handler
+ *
+ * The handler called when a Tx request times out. The timeout period is
+ * specified by the 'tx_timeo" element in the net_device structure (see
+ * et131x_alloc_device() to see how this value is set).
+ */
+static void et131x_tx_timeout(struct net_device *netdev, unsigned int txqueue)
+{
+	struct et131x_adapter *adapter = netdev_priv(netdev);
+	struct tx_ring *tx_ring = &adapter->tx_ring;
+	struct tcb *tcb;
+	unsigned long flags;
+
+	/* If the device is closed, ignore the timeout */
+	if (!(adapter->flags & FMP_ADAPTER_INTERRUPT_IN_USE))
+		return;
+
+	/* Any nonrecoverable hardware error?
+	 * Checks adapter->flags for any failure in phy reading
+	 */
+	if (adapter->flags & FMP_ADAPTER_NON_RECOVER_ERROR)
+		return;
+
+	/* Hardware failure? */
+	if (adapter->flags & FMP_ADAPTER_HARDWARE_ERROR) {
+		dev_err(&adapter->pdev->dev, "hardware error - reset\n");
+		return;
+	}
+
+	/* Is send stuck? */
+	spin_lock_irqsave(&adapter->tcb_send_qlock, flags);
+	tcb = tx_ring->send_head;
+	spin_unlock_irqrestore(&adapter->tcb_send_qlock, flags);
+
+	if (tcb) {
+		tcb->count++;
+
+		if (tcb->count > NIC_SEND_HANG_THRESHOLD) {
+			dev_warn(&adapter->pdev->dev,
+				 "Send stuck - reset. tcb->WrIndex %x\n",
+				 tcb->index);
+
+			adapter->netdev->stats.tx_errors++;
+
+			/* perform reset of tx/rx */
+			et131x_disable_txrx(netdev);
+			et131x_enable_txrx(netdev);
+		}
+	}
+}
+
+static int et131x_change_mtu(struct net_device *netdev, int new_mtu)
+{
+	int result = 0;
+	struct et131x_adapter *adapter = netdev_priv(netdev);
+
+	et131x_disable_txrx(netdev);
+
+	netdev->mtu = new_mtu;
+
+	et131x_adapter_memory_free(adapter);
+
+	/* Set the config parameter for Jumbo Packet support */
+	adapter->registry_jumbo_packet = new_mtu + 14;
+	et131x_soft_reset(adapter);
+
+	result = et131x_adapter_memory_alloc(adapter);
+	if (result != 0) {
+		dev_warn(&adapter->pdev->dev,
+			 "Change MTU failed; couldn't re-alloc DMA memory\n");
+		return result;
+	}
+
+	et131x_init_send(adapter);
+	et131x_hwaddr_init(adapter);
+	eth_hw_addr_set(netdev, adapter->addr);
+
+	/* Init the device with the new settings */
+	et131x_adapter_setup(adapter);
+	et131x_enable_txrx(netdev);
+
+	return result;
+}
+
+static const struct net_device_ops et131x_netdev_ops = {
+	.ndo_open		= et131x_open,
+	.ndo_stop		= et131x_close,
+	.ndo_start_xmit		= et131x_tx,
+	.ndo_set_rx_mode	= et131x_multicast,
+	.ndo_tx_timeout		= et131x_tx_timeout,
+	.ndo_change_mtu		= et131x_change_mtu,
+	.ndo_set_mac_address	= eth_mac_addr,
+	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_get_stats		= et131x_stats,
+	.ndo_eth_ioctl		= phy_do_ioctl,
+};
+
+static int et131x_pci_setup(struct pci_dev *pdev,
+			    const struct pci_device_id *ent)
+{
+	struct net_device *netdev;
+	struct et131x_adapter *adapter;
+	int rc;
+
+	rc = pci_enable_device(pdev);
+	if (rc < 0) {
+		dev_err(&pdev->dev, "pci_enable_device() failed\n");
+		goto out;
+	}
+
+	/* Perform some basic PCI checks */
+	if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
+		dev_err(&pdev->dev, "Can't find PCI device's base address\n");
+		rc = -ENODEV;
+		goto err_disable;
+	}
+
+	rc = pci_request_regions(pdev, DRIVER_NAME);
+	if (rc < 0) {
+		dev_err(&pdev->dev, "Can't get PCI resources\n");
+		goto err_disable;
+	}
+
+	pci_set_master(pdev);
+
+	/* Check the DMA addressing support of this device */
+	rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+	if (rc) {
+		dev_err(&pdev->dev, "No usable DMA addressing method\n");
+		goto err_release_res;
+	}
+
+	netdev = alloc_etherdev(sizeof(struct et131x_adapter));
+	if (!netdev) {
+		dev_err(&pdev->dev, "Couldn't alloc netdev struct\n");
+		rc = -ENOMEM;
+		goto err_release_res;
+	}
+
+	netdev->watchdog_timeo = ET131X_TX_TIMEOUT;
+	netdev->netdev_ops     = &et131x_netdev_ops;
+	netdev->min_mtu        = ET131X_MIN_MTU;
+	netdev->max_mtu        = ET131X_MAX_MTU;
+
+	SET_NETDEV_DEV(netdev, &pdev->dev);
+	netdev->ethtool_ops = &et131x_ethtool_ops;
+
+	adapter = et131x_adapter_init(netdev, pdev);
+
+	rc = et131x_pci_init(adapter, pdev);
+	if (rc < 0)
+		goto err_free_dev;
+
+	/* Map the bus-relative registers to system virtual memory */
+	adapter->regs = pci_ioremap_bar(pdev, 0);
+	if (!adapter->regs) {
+		dev_err(&pdev->dev, "Cannot map device registers\n");
+		rc = -ENOMEM;
+		goto err_free_dev;
+	}
+
+	/* If Phy COMA mode was enabled when we went down, disable it here. */
+	writel(ET_PMCSR_INIT,  &adapter->regs->global.pm_csr);
+
+	et131x_soft_reset(adapter);
+	et131x_disable_interrupts(adapter);
+
+	rc = et131x_adapter_memory_alloc(adapter);
+	if (rc < 0) {
+		dev_err(&pdev->dev, "Could not alloc adapter memory (DMA)\n");
+		goto err_iounmap;
+	}
+
+	et131x_init_send(adapter);
+
+	netif_napi_add(netdev, &adapter->napi, et131x_poll);
+
+	eth_hw_addr_set(netdev, adapter->addr);
+
+	rc = -ENOMEM;
+
+	adapter->mii_bus = mdiobus_alloc();
+	if (!adapter->mii_bus) {
+		dev_err(&pdev->dev, "Alloc of mii_bus struct failed\n");
+		goto err_mem_free;
+	}
+
+	adapter->mii_bus->name = "et131x_eth_mii";
+	snprintf(adapter->mii_bus->id, MII_BUS_ID_SIZE, "%x",
+		 (adapter->pdev->bus->number << 8) | adapter->pdev->devfn);
+	adapter->mii_bus->priv = netdev;
+	adapter->mii_bus->read = et131x_mdio_read;
+	adapter->mii_bus->write = et131x_mdio_write;
+
+	rc = mdiobus_register(adapter->mii_bus);
+	if (rc < 0) {
+		dev_err(&pdev->dev, "failed to register MII bus\n");
+		goto err_mdio_free;
+	}
+
+	rc = et131x_mii_probe(netdev);
+	if (rc < 0) {
+		dev_err(&pdev->dev, "failed to probe MII bus\n");
+		goto err_mdio_unregister;
+	}
+
+	et131x_adapter_setup(adapter);
+
+	/* Init variable for counting how long we do not have link status */
+	adapter->boot_coma = 0;
+	et1310_disable_phy_coma(adapter);
+
+	/* We can enable interrupts now
+	 *
+	 *  NOTE - Because registration of interrupt handler is done in the
+	 *         device's open(), defer enabling device interrupts to that
+	 *         point
+	 */
+
+	rc = register_netdev(netdev);
+	if (rc < 0) {
+		dev_err(&pdev->dev, "register_netdev() failed\n");
+		goto err_phy_disconnect;
+	}
+
+	/* Register the net_device struct with the PCI subsystem. Save a copy
+	 * of the PCI config space for this device now that the device has
+	 * been initialized, just in case it needs to be quickly restored.
+	 */
+	pci_set_drvdata(pdev, netdev);
+out:
+	return rc;
+
+err_phy_disconnect:
+	phy_disconnect(netdev->phydev);
+err_mdio_unregister:
+	mdiobus_unregister(adapter->mii_bus);
+err_mdio_free:
+	mdiobus_free(adapter->mii_bus);
+err_mem_free:
+	et131x_adapter_memory_free(adapter);
+err_iounmap:
+	iounmap(adapter->regs);
+err_free_dev:
+	pci_dev_put(pdev);
+	free_netdev(netdev);
+err_release_res:
+	pci_release_regions(pdev);
+err_disable:
+	pci_disable_device(pdev);
+	goto out;
+}
+
+static const struct pci_device_id et131x_pci_table[] = {
+	{ PCI_VDEVICE(ATT, ET131X_PCI_DEVICE_ID_GIG), 0UL},
+	{ PCI_VDEVICE(ATT, ET131X_PCI_DEVICE_ID_FAST), 0UL},
+	{ 0,}
+};
+MODULE_DEVICE_TABLE(pci, et131x_pci_table);
+
+static struct pci_driver et131x_driver = {
+	.name		= DRIVER_NAME,
+	.id_table	= et131x_pci_table,
+	.probe		= et131x_pci_setup,
+	.remove		= et131x_pci_remove,
+	.driver.pm	= &et131x_pm_ops,
+};
+
+module_pci_driver(et131x_driver);
diff --git a/drivers/net/ethernet/agere/et131x.h b/drivers/net/ethernet/agere/et131x.h
new file mode 100644
index 000000000..d0e922584
--- /dev/null
+++ b/drivers/net/ethernet/agere/et131x.h
@@ -0,0 +1,1432 @@
+/* Copyright © 2005 Agere Systems Inc.
+ * All rights reserved.
+ *   http://www.agere.com
+ *
+ * SOFTWARE LICENSE
+ *
+ * This software is provided subject to the following terms and conditions,
+ * which you should read carefully before using the software.  Using this
+ * software indicates your acceptance of these terms and conditions.  If you do
+ * not agree with these terms and conditions, do not use the software.
+ *
+ * Copyright © 2005 Agere Systems Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source or binary forms, with or without
+ * modifications, are permitted provided that the following conditions are met:
+ *
+ * . Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following Disclaimer as comments in the code as
+ *    well as in the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * . Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following Disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * . Neither the name of Agere Systems Inc. nor the names of the contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * Disclaimer
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, INFRINGEMENT AND THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  ANY
+ * USE, MODIFICATION OR DISTRIBUTION OF THIS SOFTWARE IS SOLELY AT THE USERS OWN
+ * RISK. IN NO EVENT SHALL AGERE SYSTEMS INC. OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, INCLUDING, BUT NOT LIMITED TO, CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ */
+
+#define DRIVER_NAME "et131x"
+
+/* EEPROM registers */
+
+/* LBCIF Register Groups (addressed via 32-bit offsets) */
+#define LBCIF_DWORD0_GROUP       0xAC
+#define LBCIF_DWORD1_GROUP       0xB0
+
+/* LBCIF Registers (addressed via 8-bit offsets) */
+#define LBCIF_ADDRESS_REGISTER   0xAC
+#define LBCIF_DATA_REGISTER      0xB0
+#define LBCIF_CONTROL_REGISTER   0xB1
+#define LBCIF_STATUS_REGISTER    0xB2
+
+/* LBCIF Control Register Bits */
+#define LBCIF_CONTROL_SEQUENTIAL_READ   0x01
+#define LBCIF_CONTROL_PAGE_WRITE        0x02
+#define LBCIF_CONTROL_EEPROM_RELOAD     0x08
+#define LBCIF_CONTROL_TWO_BYTE_ADDR     0x20
+#define LBCIF_CONTROL_I2C_WRITE         0x40
+#define LBCIF_CONTROL_LBCIF_ENABLE      0x80
+
+/* LBCIF Status Register Bits */
+#define LBCIF_STATUS_PHY_QUEUE_AVAIL    0x01
+#define LBCIF_STATUS_I2C_IDLE           0x02
+#define LBCIF_STATUS_ACK_ERROR          0x04
+#define LBCIF_STATUS_GENERAL_ERROR      0x08
+#define LBCIF_STATUS_CHECKSUM_ERROR     0x40
+#define LBCIF_STATUS_EEPROM_PRESENT     0x80
+
+/* START OF GLOBAL REGISTER ADDRESS MAP */
+/* 10bit registers
+ *
+ * Tx queue start address reg in global address map at address 0x0000
+ * tx queue end address reg in global address map at address 0x0004
+ * rx queue start address reg in global address map at address 0x0008
+ * rx queue end address reg in global address map at address 0x000C
+ */
+
+/* structure for power management control status reg in global address map
+ * located at address 0x0010
+ *	jagcore_rx_rdy	bit 9
+ *	jagcore_tx_rdy	bit 8
+ *	phy_lped_en	bit 7
+ *	phy_sw_coma	bit 6
+ *	rxclk_gate	bit 5
+ *	txclk_gate	bit 4
+ *	sysclk_gate	bit 3
+ *	jagcore_rx_en	bit 2
+ *	jagcore_tx_en	bit 1
+ *	gigephy_en	bit 0
+ */
+#define ET_PM_PHY_SW_COMA		0x40
+#define ET_PMCSR_INIT			0x38
+
+/* Interrupt status reg at address 0x0018
+ */
+#define	ET_INTR_TXDMA_ISR	0x00000008
+#define ET_INTR_TXDMA_ERR	0x00000010
+#define ET_INTR_RXDMA_XFR_DONE	0x00000020
+#define ET_INTR_RXDMA_FB_R0_LOW	0x00000040
+#define ET_INTR_RXDMA_FB_R1_LOW	0x00000080
+#define ET_INTR_RXDMA_STAT_LOW	0x00000100
+#define ET_INTR_RXDMA_ERR	0x00000200
+#define ET_INTR_WATCHDOG	0x00004000
+#define ET_INTR_WOL		0x00008000
+#define ET_INTR_PHY		0x00010000
+#define ET_INTR_TXMAC		0x00020000
+#define ET_INTR_RXMAC		0x00040000
+#define ET_INTR_MAC_STAT	0x00080000
+#define ET_INTR_SLV_TIMEOUT	0x00100000
+
+/* Interrupt mask register at address 0x001C
+ * Interrupt alias clear mask reg at address 0x0020
+ * Interrupt status alias reg at address 0x0024
+ *
+ * Same masks as above
+ */
+
+/* Software reset reg at address 0x0028
+ * 0:	txdma_sw_reset
+ * 1:	rxdma_sw_reset
+ * 2:	txmac_sw_reset
+ * 3:	rxmac_sw_reset
+ * 4:	mac_sw_reset
+ * 5:	mac_stat_sw_reset
+ * 6:	mmc_sw_reset
+ *31:	selfclr_disable
+ */
+#define ET_RESET_ALL	0x007F
+
+/* SLV Timer reg at address 0x002C (low 24 bits)
+ */
+
+/* MSI Configuration reg at address 0x0030
+ */
+#define ET_MSI_VECTOR	0x0000001F
+#define ET_MSI_TC	0x00070000
+
+/* Loopback reg located at address 0x0034
+ */
+#define ET_LOOP_MAC	0x00000001
+#define ET_LOOP_DMA	0x00000002
+
+/* GLOBAL Module of JAGCore Address Mapping
+ * Located at address 0x0000
+ */
+struct global_regs {				/* Location: */
+	u32 txq_start_addr;			/*  0x0000 */
+	u32 txq_end_addr;			/*  0x0004 */
+	u32 rxq_start_addr;			/*  0x0008 */
+	u32 rxq_end_addr;			/*  0x000C */
+	u32 pm_csr;				/*  0x0010 */
+	u32 unused;				/*  0x0014 */
+	u32 int_status;				/*  0x0018 */
+	u32 int_mask;				/*  0x001C */
+	u32 int_alias_clr_en;			/*  0x0020 */
+	u32 int_status_alias;			/*  0x0024 */
+	u32 sw_reset;				/*  0x0028 */
+	u32 slv_timer;				/*  0x002C */
+	u32 msi_config;				/*  0x0030 */
+	u32 loopback;				/*  0x0034 */
+	u32 watchdog_timer;			/*  0x0038 */
+};
+
+/* START OF TXDMA REGISTER ADDRESS MAP */
+/* txdma control status reg at address 0x1000
+ */
+#define ET_TXDMA_CSR_HALT	0x00000001
+#define ET_TXDMA_DROP_TLP	0x00000002
+#define ET_TXDMA_CACHE_THRS	0x000000F0
+#define ET_TXDMA_CACHE_SHIFT	4
+#define ET_TXDMA_SNGL_EPKT	0x00000100
+#define ET_TXDMA_CLASS		0x00001E00
+
+/* structure for txdma packet ring base address hi reg in txdma address map
+ * located at address 0x1004
+ * Defined earlier (u32)
+ */
+
+/* structure for txdma packet ring base address low reg in txdma address map
+ * located at address 0x1008
+ * Defined earlier (u32)
+ */
+
+/* structure for txdma packet ring number of descriptor reg in txdma address
+ * map.  Located at address 0x100C
+ *
+ * 31-10: unused
+ * 9-0: pr ndes
+ */
+#define ET_DMA12_MASK		0x0FFF	/* 12 bit mask for DMA12W types */
+#define ET_DMA12_WRAP		0x1000
+#define ET_DMA10_MASK		0x03FF	/* 10 bit mask for DMA10W types */
+#define ET_DMA10_WRAP		0x0400
+#define ET_DMA4_MASK		0x000F	/* 4 bit mask for DMA4W types */
+#define ET_DMA4_WRAP		0x0010
+
+#define INDEX12(x)	((x) & ET_DMA12_MASK)
+#define INDEX10(x)	((x) & ET_DMA10_MASK)
+#define INDEX4(x)	((x) & ET_DMA4_MASK)
+
+/* 10bit DMA with wrap
+ * txdma tx queue write address reg in txdma address map at 0x1010
+ * txdma tx queue write address external reg in txdma address map at 0x1014
+ * txdma tx queue read address reg in txdma address map at 0x1018
+ *
+ * u32
+ * txdma status writeback address hi reg in txdma address map at0x101C
+ * txdma status writeback address lo reg in txdma address map at 0x1020
+ *
+ * 10bit DMA with wrap
+ * txdma service request reg in txdma address map at 0x1024
+ * structure for txdma service complete reg in txdma address map at 0x1028
+ *
+ * 4bit DMA with wrap
+ * txdma tx descriptor cache read index reg in txdma address map at 0x102C
+ * txdma tx descriptor cache write index reg in txdma address map at 0x1030
+ *
+ * txdma error reg in txdma address map at address 0x1034
+ * 0: PyldResend
+ * 1: PyldRewind
+ * 4: DescrResend
+ * 5: DescrRewind
+ * 8: WrbkResend
+ * 9: WrbkRewind
+ */
+
+/* Tx DMA Module of JAGCore Address Mapping
+ * Located at address 0x1000
+ */
+struct txdma_regs {			/* Location: */
+	u32 csr;			/*  0x1000 */
+	u32 pr_base_hi;			/*  0x1004 */
+	u32 pr_base_lo;			/*  0x1008 */
+	u32 pr_num_des;			/*  0x100C */
+	u32 txq_wr_addr;		/*  0x1010 */
+	u32 txq_wr_addr_ext;		/*  0x1014 */
+	u32 txq_rd_addr;		/*  0x1018 */
+	u32 dma_wb_base_hi;		/*  0x101C */
+	u32 dma_wb_base_lo;		/*  0x1020 */
+	u32 service_request;		/*  0x1024 */
+	u32 service_complete;		/*  0x1028 */
+	u32 cache_rd_index;		/*  0x102C */
+	u32 cache_wr_index;		/*  0x1030 */
+	u32 tx_dma_error;		/*  0x1034 */
+	u32 desc_abort_cnt;		/*  0x1038 */
+	u32 payload_abort_cnt;		/*  0x103c */
+	u32 writeback_abort_cnt;	/*  0x1040 */
+	u32 desc_timeout_cnt;		/*  0x1044 */
+	u32 payload_timeout_cnt;	/*  0x1048 */
+	u32 writeback_timeout_cnt;	/*  0x104c */
+	u32 desc_error_cnt;		/*  0x1050 */
+	u32 payload_error_cnt;		/*  0x1054 */
+	u32 writeback_error_cnt;	/*  0x1058 */
+	u32 dropped_tlp_cnt;		/*  0x105c */
+	u32 new_service_complete;	/*  0x1060 */
+	u32 ethernet_packet_cnt;	/*  0x1064 */
+};
+
+/* END OF TXDMA REGISTER ADDRESS MAP */
+
+/* START OF RXDMA REGISTER ADDRESS MAP */
+/* structure for control status reg in rxdma address map
+ * Located at address 0x2000
+ *
+ * CSR
+ * 0: halt
+ * 1-3: tc
+ * 4: fbr_big_endian
+ * 5: psr_big_endian
+ * 6: pkt_big_endian
+ * 7: dma_big_endian
+ * 8-9: fbr0_size
+ * 10: fbr0_enable
+ * 11-12: fbr1_size
+ * 13: fbr1_enable
+ * 14: unused
+ * 15: pkt_drop_disable
+ * 16: pkt_done_flush
+ * 17: halt_status
+ * 18-31: unused
+ */
+#define ET_RXDMA_CSR_HALT		0x0001
+#define ET_RXDMA_CSR_FBR0_SIZE_LO	0x0100
+#define ET_RXDMA_CSR_FBR0_SIZE_HI	0x0200
+#define ET_RXDMA_CSR_FBR0_ENABLE	0x0400
+#define ET_RXDMA_CSR_FBR1_SIZE_LO	0x0800
+#define ET_RXDMA_CSR_FBR1_SIZE_HI	0x1000
+#define ET_RXDMA_CSR_FBR1_ENABLE	0x2000
+#define ET_RXDMA_CSR_HALT_STATUS	0x00020000
+
+/* structure for dma writeback lo reg in rxdma address map
+ * located at address 0x2004
+ * Defined earlier (u32)
+ */
+
+/* structure for dma writeback hi reg in rxdma address map
+ * located at address 0x2008
+ * Defined earlier (u32)
+ */
+
+/* structure for number of packets done reg in rxdma address map
+ * located at address 0x200C
+ *
+ * 31-8: unused
+ * 7-0: num done
+ */
+
+/* structure for max packet time reg in rxdma address map
+ * located at address 0x2010
+ *
+ * 31-18: unused
+ * 17-0: time done
+ */
+
+/* structure for rx queue read address reg in rxdma address map
+ * located at address 0x2014
+ * Defined earlier (u32)
+ */
+
+/* structure for rx queue read address external reg in rxdma address map
+ * located at address 0x2018
+ * Defined earlier (u32)
+ */
+
+/* structure for rx queue write address reg in rxdma address map
+ * located at address 0x201C
+ * Defined earlier (u32)
+ */
+
+/* structure for packet status ring base address lo reg in rxdma address map
+ * located at address 0x2020
+ * Defined earlier (u32)
+ */
+
+/* structure for packet status ring base address hi reg in rxdma address map
+ * located at address 0x2024
+ * Defined earlier (u32)
+ */
+
+/* structure for packet status ring number of descriptors reg in rxdma address
+ * map.  Located at address 0x2028
+ *
+ * 31-12: unused
+ * 11-0: psr ndes
+ */
+#define ET_RXDMA_PSR_NUM_DES_MASK	0xFFF
+
+/* structure for packet status ring available offset reg in rxdma address map
+ * located at address 0x202C
+ *
+ * 31-13: unused
+ * 12: psr avail wrap
+ * 11-0: psr avail
+ */
+
+/* structure for packet status ring full offset reg in rxdma address map
+ * located at address 0x2030
+ *
+ * 31-13: unused
+ * 12: psr full wrap
+ * 11-0: psr full
+ */
+
+/* structure for packet status ring access index reg in rxdma address map
+ * located at address 0x2034
+ *
+ * 31-5: unused
+ * 4-0: psr_ai
+ */
+
+/* structure for packet status ring minimum descriptors reg in rxdma address
+ * map.  Located at address 0x2038
+ *
+ * 31-12: unused
+ * 11-0: psr_min
+ */
+
+/* structure for free buffer ring base lo address reg in rxdma address map
+ * located at address 0x203C
+ * Defined earlier (u32)
+ */
+
+/* structure for free buffer ring base hi address reg in rxdma address map
+ * located at address 0x2040
+ * Defined earlier (u32)
+ */
+
+/* structure for free buffer ring number of descriptors reg in rxdma address
+ * map.  Located at address 0x2044
+ *
+ * 31-10: unused
+ * 9-0: fbr ndesc
+ */
+
+/* structure for free buffer ring 0 available offset reg in rxdma address map
+ * located at address 0x2048
+ * Defined earlier (u32)
+ */
+
+/* structure for free buffer ring 0 full offset reg in rxdma address map
+ * located at address 0x204C
+ * Defined earlier (u32)
+ */
+
+/* structure for free buffer cache 0 full offset reg in rxdma address map
+ * located at address 0x2050
+ *
+ * 31-5: unused
+ * 4-0: fbc rdi
+ */
+
+/* structure for free buffer ring 0 minimum descriptor reg in rxdma address map
+ * located at address 0x2054
+ *
+ * 31-10: unused
+ * 9-0: fbr min
+ */
+
+/* structure for free buffer ring 1 base address lo reg in rxdma address map
+ * located at address 0x2058 - 0x205C
+ * Defined earlier (RXDMA_FBR_BASE_LO_t and RXDMA_FBR_BASE_HI_t)
+ */
+
+/* structure for free buffer ring 1 number of descriptors reg in rxdma address
+ * map.  Located at address 0x2060
+ * Defined earlier (RXDMA_FBR_NUM_DES_t)
+ */
+
+/* structure for free buffer ring 1 available offset reg in rxdma address map
+ * located at address 0x2064
+ * Defined Earlier (RXDMA_FBR_AVAIL_OFFSET_t)
+ */
+
+/* structure for free buffer ring 1 full offset reg in rxdma address map
+ * located at address 0x2068
+ * Defined Earlier (RXDMA_FBR_FULL_OFFSET_t)
+ */
+
+/* structure for free buffer cache 1 read index reg in rxdma address map
+ * located at address 0x206C
+ * Defined Earlier (RXDMA_FBC_RD_INDEX_t)
+ */
+
+/* structure for free buffer ring 1 minimum descriptor reg in rxdma address map
+ * located at address 0x2070
+ * Defined Earlier (RXDMA_FBR_MIN_DES_t)
+ */
+
+/* Rx DMA Module of JAGCore Address Mapping
+ * Located at address 0x2000
+ */
+struct rxdma_regs {					/* Location: */
+	u32 csr;					/*  0x2000 */
+	u32 dma_wb_base_lo;				/*  0x2004 */
+	u32 dma_wb_base_hi;				/*  0x2008 */
+	u32 num_pkt_done;				/*  0x200C */
+	u32 max_pkt_time;				/*  0x2010 */
+	u32 rxq_rd_addr;				/*  0x2014 */
+	u32 rxq_rd_addr_ext;				/*  0x2018 */
+	u32 rxq_wr_addr;				/*  0x201C */
+	u32 psr_base_lo;				/*  0x2020 */
+	u32 psr_base_hi;				/*  0x2024 */
+	u32 psr_num_des;				/*  0x2028 */
+	u32 psr_avail_offset;				/*  0x202C */
+	u32 psr_full_offset;				/*  0x2030 */
+	u32 psr_access_index;				/*  0x2034 */
+	u32 psr_min_des;				/*  0x2038 */
+	u32 fbr0_base_lo;				/*  0x203C */
+	u32 fbr0_base_hi;				/*  0x2040 */
+	u32 fbr0_num_des;				/*  0x2044 */
+	u32 fbr0_avail_offset;				/*  0x2048 */
+	u32 fbr0_full_offset;				/*  0x204C */
+	u32 fbr0_rd_index;				/*  0x2050 */
+	u32 fbr0_min_des;				/*  0x2054 */
+	u32 fbr1_base_lo;				/*  0x2058 */
+	u32 fbr1_base_hi;				/*  0x205C */
+	u32 fbr1_num_des;				/*  0x2060 */
+	u32 fbr1_avail_offset;				/*  0x2064 */
+	u32 fbr1_full_offset;				/*  0x2068 */
+	u32 fbr1_rd_index;				/*  0x206C */
+	u32 fbr1_min_des;				/*  0x2070 */
+};
+
+/* END OF RXDMA REGISTER ADDRESS MAP */
+
+/* START OF TXMAC REGISTER ADDRESS MAP */
+/* structure for control reg in txmac address map
+ * located at address 0x3000
+ *
+ * bits
+ * 31-8: unused
+ * 7: cklseg_disable
+ * 6: ckbcnt_disable
+ * 5: cksegnum
+ * 4: async_disable
+ * 3: fc_disable
+ * 2: mcif_disable
+ * 1: mif_disable
+ * 0: txmac_en
+ */
+#define ET_TX_CTRL_FC_DISABLE	0x0008
+#define ET_TX_CTRL_TXMAC_ENABLE	0x0001
+
+/* structure for shadow pointer reg in txmac address map
+ * located at address 0x3004
+ * 31-27: reserved
+ * 26-16: txq rd ptr
+ * 15-11: reserved
+ * 10-0: txq wr ptr
+ */
+
+/* structure for error count reg in txmac address map
+ * located at address 0x3008
+ *
+ * 31-12: unused
+ * 11-8: reserved
+ * 7-4: txq_underrun
+ * 3-0: fifo_underrun
+ */
+
+/* structure for max fill reg in txmac address map
+ * located at address 0x300C
+ * 31-12: unused
+ * 11-0: max fill
+ */
+
+/* structure for cf parameter reg in txmac address map
+ * located at address 0x3010
+ * 31-16: cfep
+ * 15-0: cfpt
+ */
+
+/* structure for tx test reg in txmac address map
+ * located at address 0x3014
+ * 31-17: unused
+ * 16: reserved
+ * 15: txtest_en
+ * 14-11: unused
+ * 10-0: txq test pointer
+ */
+
+/* structure for error reg in txmac address map
+ * located at address 0x3018
+ *
+ * 31-9: unused
+ * 8: fifo_underrun
+ * 7-6: unused
+ * 5: ctrl2_err
+ * 4: txq_underrun
+ * 3: bcnt_err
+ * 2: lseg_err
+ * 1: segnum_err
+ * 0: seg0_err
+ */
+
+/* structure for error interrupt reg in txmac address map
+ * located at address 0x301C
+ *
+ * 31-9: unused
+ * 8: fifo_underrun
+ * 7-6: unused
+ * 5: ctrl2_err
+ * 4: txq_underrun
+ * 3: bcnt_err
+ * 2: lseg_err
+ * 1: segnum_err
+ * 0: seg0_err
+ */
+
+/* structure for error interrupt reg in txmac address map
+ * located at address 0x3020
+ *
+ * 31-2: unused
+ * 1: bp_req
+ * 0: bp_xonxoff
+ */
+
+/* Tx MAC Module of JAGCore Address Mapping
+ */
+struct txmac_regs {			/* Location: */
+	u32 ctl;			/*  0x3000 */
+	u32 shadow_ptr;			/*  0x3004 */
+	u32 err_cnt;			/*  0x3008 */
+	u32 max_fill;			/*  0x300C */
+	u32 cf_param;			/*  0x3010 */
+	u32 tx_test;			/*  0x3014 */
+	u32 err;			/*  0x3018 */
+	u32 err_int;			/*  0x301C */
+	u32 bp_ctrl;			/*  0x3020 */
+};
+
+/* END OF TXMAC REGISTER ADDRESS MAP */
+
+/* START OF RXMAC REGISTER ADDRESS MAP */
+
+/* structure for rxmac control reg in rxmac address map
+ * located at address 0x4000
+ *
+ * 31-7: reserved
+ * 6: rxmac_int_disable
+ * 5: async_disable
+ * 4: mif_disable
+ * 3: wol_disable
+ * 2: pkt_filter_disable
+ * 1: mcif_disable
+ * 0: rxmac_en
+ */
+#define ET_RX_CTRL_WOL_DISABLE	0x0008
+#define ET_RX_CTRL_RXMAC_ENABLE	0x0001
+
+/* structure for Wake On Lan Control and CRC 0 reg in rxmac address map
+ * located at address 0x4004
+ * 31-16: crc
+ * 15-12: reserved
+ * 11: ignore_pp
+ * 10: ignore_mp
+ * 9: clr_intr
+ * 8: ignore_link_chg
+ * 7: ignore_uni
+ * 6: ignore_multi
+ * 5: ignore_broad
+ * 4-0: valid_crc 4-0
+ */
+
+/* structure for CRC 1 and CRC 2 reg in rxmac address map
+ * located at address 0x4008
+ *
+ * 31-16: crc2
+ * 15-0: crc1
+ */
+
+/* structure for CRC 3 and CRC 4 reg in rxmac address map
+ * located at address 0x400C
+ *
+ * 31-16: crc4
+ * 15-0: crc3
+ */
+
+/* structure for Wake On Lan Source Address Lo reg in rxmac address map
+ * located at address 0x4010
+ *
+ * 31-24: sa3
+ * 23-16: sa4
+ * 15-8: sa5
+ * 7-0: sa6
+ */
+#define ET_RX_WOL_LO_SA3_SHIFT 24
+#define ET_RX_WOL_LO_SA4_SHIFT 16
+#define ET_RX_WOL_LO_SA5_SHIFT 8
+
+/* structure for Wake On Lan Source Address Hi reg in rxmac address map
+ * located at address 0x4014
+ *
+ * 31-16: reserved
+ * 15-8: sa1
+ * 7-0: sa2
+ */
+#define ET_RX_WOL_HI_SA1_SHIFT 8
+
+/* structure for Wake On Lan mask reg in rxmac address map
+ * located at address 0x4018 - 0x4064
+ * Defined earlier (u32)
+ */
+
+/* structure for Unicast Packet Filter Address 1 reg in rxmac address map
+ * located at address 0x4068
+ *
+ * 31-24: addr1_3
+ * 23-16: addr1_4
+ * 15-8: addr1_5
+ * 7-0: addr1_6
+ */
+#define ET_RX_UNI_PF_ADDR1_3_SHIFT 24
+#define ET_RX_UNI_PF_ADDR1_4_SHIFT 16
+#define ET_RX_UNI_PF_ADDR1_5_SHIFT 8
+
+/* structure for Unicast Packet Filter Address 2 reg in rxmac address map
+ * located at address 0x406C
+ *
+ * 31-24: addr2_3
+ * 23-16: addr2_4
+ * 15-8: addr2_5
+ * 7-0: addr2_6
+ */
+#define ET_RX_UNI_PF_ADDR2_3_SHIFT 24
+#define ET_RX_UNI_PF_ADDR2_4_SHIFT 16
+#define ET_RX_UNI_PF_ADDR2_5_SHIFT 8
+
+/* structure for Unicast Packet Filter Address 1 & 2 reg in rxmac address map
+ * located at address 0x4070
+ *
+ * 31-24: addr2_1
+ * 23-16: addr2_2
+ * 15-8: addr1_1
+ * 7-0: addr1_2
+ */
+#define ET_RX_UNI_PF_ADDR2_1_SHIFT 24
+#define ET_RX_UNI_PF_ADDR2_2_SHIFT 16
+#define ET_RX_UNI_PF_ADDR1_1_SHIFT 8
+
+/* structure for Multicast Hash reg in rxmac address map
+ * located at address 0x4074 - 0x4080
+ * Defined earlier (u32)
+ */
+
+/* structure for Packet Filter Control reg in rxmac address map
+ * located at address 0x4084
+ *
+ * 31-23: unused
+ * 22-16: min_pkt_size
+ * 15-4: unused
+ * 3: filter_frag_en
+ * 2: filter_uni_en
+ * 1: filter_multi_en
+ * 0: filter_broad_en
+ */
+#define ET_RX_PFCTRL_MIN_PKT_SZ_SHIFT		16
+#define ET_RX_PFCTRL_FRAG_FILTER_ENABLE		0x0008
+#define ET_RX_PFCTRL_UNICST_FILTER_ENABLE	0x0004
+#define ET_RX_PFCTRL_MLTCST_FILTER_ENABLE	0x0002
+#define ET_RX_PFCTRL_BRDCST_FILTER_ENABLE	0x0001
+
+/* structure for Memory Controller Interface Control Max Segment reg in rxmac
+ * address map.  Located at address 0x4088
+ *
+ * 31-10: reserved
+ * 9-2: max_size
+ * 1: fc_en
+ * 0: seg_en
+ */
+#define ET_RX_MCIF_CTRL_MAX_SEG_SIZE_SHIFT	2
+#define ET_RX_MCIF_CTRL_MAX_SEG_FC_ENABLE	0x0002
+#define ET_RX_MCIF_CTRL_MAX_SEG_ENABLE		0x0001
+
+/* structure for Memory Controller Interface Water Mark reg in rxmac address
+ * map.  Located at address 0x408C
+ *
+ * 31-26: unused
+ * 25-16: mark_hi
+ * 15-10: unused
+ * 9-0: mark_lo
+ */
+
+/* structure for Rx Queue Dialog reg in rxmac address map.
+ * located at address 0x4090
+ *
+ * 31-26: reserved
+ * 25-16: rd_ptr
+ * 15-10: reserved
+ * 9-0: wr_ptr
+ */
+
+/* structure for space available reg in rxmac address map.
+ * located at address 0x4094
+ *
+ * 31-17: reserved
+ * 16: space_avail_en
+ * 15-10: reserved
+ * 9-0: space_avail
+ */
+
+/* structure for management interface reg in rxmac address map.
+ * located at address 0x4098
+ *
+ * 31-18: reserved
+ * 17: drop_pkt_en
+ * 16-0: drop_pkt_mask
+ */
+
+/* structure for Error reg in rxmac address map.
+ * located at address 0x409C
+ *
+ * 31-4: unused
+ * 3: mif
+ * 2: async
+ * 1: pkt_filter
+ * 0: mcif
+ */
+
+/* Rx MAC Module of JAGCore Address Mapping
+ */
+struct rxmac_regs {					/* Location: */
+	u32 ctrl;					/*  0x4000 */
+	u32 crc0;					/*  0x4004 */
+	u32 crc12;					/*  0x4008 */
+	u32 crc34;					/*  0x400C */
+	u32 sa_lo;					/*  0x4010 */
+	u32 sa_hi;					/*  0x4014 */
+	u32 mask0_word0;				/*  0x4018 */
+	u32 mask0_word1;				/*  0x401C */
+	u32 mask0_word2;				/*  0x4020 */
+	u32 mask0_word3;				/*  0x4024 */
+	u32 mask1_word0;				/*  0x4028 */
+	u32 mask1_word1;				/*  0x402C */
+	u32 mask1_word2;				/*  0x4030 */
+	u32 mask1_word3;				/*  0x4034 */
+	u32 mask2_word0;				/*  0x4038 */
+	u32 mask2_word1;				/*  0x403C */
+	u32 mask2_word2;				/*  0x4040 */
+	u32 mask2_word3;				/*  0x4044 */
+	u32 mask3_word0;				/*  0x4048 */
+	u32 mask3_word1;				/*  0x404C */
+	u32 mask3_word2;				/*  0x4050 */
+	u32 mask3_word3;				/*  0x4054 */
+	u32 mask4_word0;				/*  0x4058 */
+	u32 mask4_word1;				/*  0x405C */
+	u32 mask4_word2;				/*  0x4060 */
+	u32 mask4_word3;				/*  0x4064 */
+	u32 uni_pf_addr1;				/*  0x4068 */
+	u32 uni_pf_addr2;				/*  0x406C */
+	u32 uni_pf_addr3;				/*  0x4070 */
+	u32 multi_hash1;				/*  0x4074 */
+	u32 multi_hash2;				/*  0x4078 */
+	u32 multi_hash3;				/*  0x407C */
+	u32 multi_hash4;				/*  0x4080 */
+	u32 pf_ctrl;					/*  0x4084 */
+	u32 mcif_ctrl_max_seg;				/*  0x4088 */
+	u32 mcif_water_mark;				/*  0x408C */
+	u32 rxq_diag;					/*  0x4090 */
+	u32 space_avail;				/*  0x4094 */
+
+	u32 mif_ctrl;					/*  0x4098 */
+	u32 err_reg;					/*  0x409C */
+};
+
+/* END OF RXMAC REGISTER ADDRESS MAP */
+
+/* START OF MAC REGISTER ADDRESS MAP */
+/* structure for configuration #1 reg in mac address map.
+ * located at address 0x5000
+ *
+ * 31: soft reset
+ * 30: sim reset
+ * 29-20: reserved
+ * 19: reset rx mc
+ * 18: reset tx mc
+ * 17: reset rx func
+ * 16: reset tx fnc
+ * 15-9: reserved
+ * 8: loopback
+ * 7-6: reserved
+ * 5: rx flow
+ * 4: tx flow
+ * 3: syncd rx en
+ * 2: rx enable
+ * 1: syncd tx en
+ * 0: tx enable
+ */
+#define ET_MAC_CFG1_SOFT_RESET		0x80000000
+#define ET_MAC_CFG1_SIM_RESET		0x40000000
+#define ET_MAC_CFG1_RESET_RXMC		0x00080000
+#define ET_MAC_CFG1_RESET_TXMC		0x00040000
+#define ET_MAC_CFG1_RESET_RXFUNC	0x00020000
+#define ET_MAC_CFG1_RESET_TXFUNC	0x00010000
+#define ET_MAC_CFG1_LOOPBACK		0x00000100
+#define ET_MAC_CFG1_RX_FLOW		0x00000020
+#define ET_MAC_CFG1_TX_FLOW		0x00000010
+#define ET_MAC_CFG1_RX_ENABLE		0x00000004
+#define ET_MAC_CFG1_TX_ENABLE		0x00000001
+#define ET_MAC_CFG1_WAIT		0x0000000A	/* RX & TX syncd */
+
+/* structure for configuration #2 reg in mac address map.
+ * located at address 0x5004
+ * 31-16: reserved
+ * 15-12: preamble
+ * 11-10: reserved
+ * 9-8: if mode
+ * 7-6: reserved
+ * 5: huge frame
+ * 4: length check
+ * 3: undefined
+ * 2: pad crc
+ * 1: crc enable
+ * 0: full duplex
+ */
+#define ET_MAC_CFG2_PREAMBLE_SHIFT	12
+#define ET_MAC_CFG2_IFMODE_MASK		0x0300
+#define ET_MAC_CFG2_IFMODE_1000		0x0200
+#define ET_MAC_CFG2_IFMODE_100		0x0100
+#define ET_MAC_CFG2_IFMODE_HUGE_FRAME	0x0020
+#define ET_MAC_CFG2_IFMODE_LEN_CHECK	0x0010
+#define ET_MAC_CFG2_IFMODE_PAD_CRC	0x0004
+#define ET_MAC_CFG2_IFMODE_CRC_ENABLE	0x0002
+#define ET_MAC_CFG2_IFMODE_FULL_DPLX	0x0001
+
+/* structure for Interpacket gap reg in mac address map.
+ * located at address 0x5008
+ *
+ * 31: reserved
+ * 30-24: non B2B ipg 1
+ * 23: undefined
+ * 22-16: non B2B ipg 2
+ * 15-8: Min ifg enforce
+ * 7-0: B2B ipg
+ *
+ * structure for half duplex reg in mac address map.
+ * located at address 0x500C
+ * 31-24: reserved
+ * 23-20: Alt BEB trunc
+ * 19: Alt BEB enable
+ * 18: BP no backoff
+ * 17: no backoff
+ * 16: excess defer
+ * 15-12: re-xmit max
+ * 11-10: reserved
+ * 9-0: collision window
+ */
+
+/* structure for Maximum Frame Length reg in mac address map.
+ * located at address 0x5010: bits 0-15 hold the length.
+ */
+
+/* structure for Reserve 1 reg in mac address map.
+ * located at address 0x5014 - 0x5018
+ * Defined earlier (u32)
+ */
+
+/* structure for Test reg in mac address map.
+ * located at address 0x501C
+ * test: bits 0-2, rest unused
+ */
+
+/* structure for MII Management Configuration reg in mac address map.
+ * located at address 0x5020
+ *
+ * 31: reset MII mgmt
+ * 30-6: unused
+ * 5: scan auto increment
+ * 4: preamble suppress
+ * 3: undefined
+ * 2-0: mgmt clock reset
+ */
+#define ET_MAC_MIIMGMT_CLK_RST	0x0007
+
+/* structure for MII Management Command reg in mac address map.
+ * located at address 0x5024
+ * bit 1: scan cycle
+ * bit 0: read cycle
+ */
+
+/* structure for MII Management Address reg in mac address map.
+ * located at address 0x5028
+ * 31-13: reserved
+ * 12-8: phy addr
+ * 7-5: reserved
+ * 4-0: register
+ */
+#define ET_MAC_MII_ADDR(phy, reg)	((phy) << 8 | (reg))
+
+/* structure for MII Management Control reg in mac address map.
+ * located at address 0x502C
+ * 31-16: reserved
+ * 15-0: phy control
+ */
+
+/* structure for MII Management Status reg in mac address map.
+ * located at address 0x5030
+ * 31-16: reserved
+ * 15-0: phy control
+ */
+#define ET_MAC_MIIMGMT_STAT_PHYCRTL_MASK 0xFFFF
+
+/* structure for MII Management Indicators reg in mac address map.
+ * located at address 0x5034
+ * 31-3: reserved
+ * 2: not valid
+ * 1: scanning
+ * 0: busy
+ */
+#define ET_MAC_MGMT_BUSY	0x00000001	/* busy */
+#define ET_MAC_MGMT_WAIT	0x00000005	/* busy | not valid */
+
+/* structure for Interface Control reg in mac address map.
+ * located at address 0x5038
+ *
+ * 31: reset if module
+ * 30-28: reserved
+ * 27: tbi mode
+ * 26: ghd mode
+ * 25: lhd mode
+ * 24: phy mode
+ * 23: reset per mii
+ * 22-17: reserved
+ * 16: speed
+ * 15: reset pe100x
+ * 14-11: reserved
+ * 10: force quiet
+ * 9: no cipher
+ * 8: disable link fail
+ * 7: reset gpsi
+ * 6-1: reserved
+ * 0: enable jabber protection
+ */
+#define ET_MAC_IFCTRL_GHDMODE	(1 << 26)
+#define ET_MAC_IFCTRL_PHYMODE	(1 << 24)
+
+/* structure for Interface Status reg in mac address map.
+ * located at address 0x503C
+ *
+ * 31-10: reserved
+ * 9: excess_defer
+ * 8: clash
+ * 7: phy_jabber
+ * 6: phy_link_ok
+ * 5: phy_full_duplex
+ * 4: phy_speed
+ * 3: pe100x_link_fail
+ * 2: pe10t_loss_carrier
+ * 1: pe10t_sqe_error
+ * 0: pe10t_jabber
+ */
+
+/* structure for Mac Station Address, Part 1 reg in mac address map.
+ * located at address 0x5040
+ *
+ * 31-24: Octet6
+ * 23-16: Octet5
+ * 15-8: Octet4
+ * 7-0: Octet3
+ */
+#define ET_MAC_STATION_ADDR1_OC6_SHIFT 24
+#define ET_MAC_STATION_ADDR1_OC5_SHIFT 16
+#define ET_MAC_STATION_ADDR1_OC4_SHIFT 8
+
+/* structure for Mac Station Address, Part 2 reg in mac address map.
+ * located at address 0x5044
+ *
+ * 31-24: Octet2
+ * 23-16: Octet1
+ * 15-0: reserved
+ */
+#define ET_MAC_STATION_ADDR2_OC2_SHIFT 24
+#define ET_MAC_STATION_ADDR2_OC1_SHIFT 16
+
+/* MAC Module of JAGCore Address Mapping
+ */
+struct mac_regs {					/* Location: */
+	u32 cfg1;					/*  0x5000 */
+	u32 cfg2;					/*  0x5004 */
+	u32 ipg;					/*  0x5008 */
+	u32 hfdp;					/*  0x500C */
+	u32 max_fm_len;					/*  0x5010 */
+	u32 rsv1;					/*  0x5014 */
+	u32 rsv2;					/*  0x5018 */
+	u32 mac_test;					/*  0x501C */
+	u32 mii_mgmt_cfg;				/*  0x5020 */
+	u32 mii_mgmt_cmd;				/*  0x5024 */
+	u32 mii_mgmt_addr;				/*  0x5028 */
+	u32 mii_mgmt_ctrl;				/*  0x502C */
+	u32 mii_mgmt_stat;				/*  0x5030 */
+	u32 mii_mgmt_indicator;				/*  0x5034 */
+	u32 if_ctrl;					/*  0x5038 */
+	u32 if_stat;					/*  0x503C */
+	u32 station_addr_1;				/*  0x5040 */
+	u32 station_addr_2;				/*  0x5044 */
+};
+
+/* END OF MAC REGISTER ADDRESS MAP */
+
+/* START OF MAC STAT REGISTER ADDRESS MAP */
+/* structure for Carry Register One and it's Mask Register reg located in mac
+ * stat address map address 0x6130 and 0x6138.
+ *
+ * 31: tr64
+ * 30: tr127
+ * 29: tr255
+ * 28: tr511
+ * 27: tr1k
+ * 26: trmax
+ * 25: trmgv
+ * 24-17: unused
+ * 16: rbyt
+ * 15: rpkt
+ * 14: rfcs
+ * 13: rmca
+ * 12: rbca
+ * 11: rxcf
+ * 10: rxpf
+ * 9: rxuo
+ * 8: raln
+ * 7: rflr
+ * 6: rcde
+ * 5: rcse
+ * 4: rund
+ * 3: rovr
+ * 2: rfrg
+ * 1: rjbr
+ * 0: rdrp
+ */
+
+/* structure for Carry Register Two Mask Register reg in mac stat address map.
+ * located at address 0x613C
+ *
+ * 31-20: unused
+ * 19: tjbr
+ * 18: tfcs
+ * 17: txcf
+ * 16: tovr
+ * 15: tund
+ * 14: trfg
+ * 13: tbyt
+ * 12: tpkt
+ * 11: tmca
+ * 10: tbca
+ * 9: txpf
+ * 8: tdfr
+ * 7: tedf
+ * 6: tscl
+ * 5: tmcl
+ * 4: tlcl
+ * 3: txcl
+ * 2: tncl
+ * 1: tpfh
+ * 0: tdrp
+ */
+
+/* MAC STATS Module of JAGCore Address Mapping
+ */
+struct macstat_regs {			/* Location: */
+	u32 pad[32];			/*  0x6000 - 607C */
+
+	/* counters */
+	u32 txrx_0_64_byte_frames;	/*  0x6080 */
+	u32 txrx_65_127_byte_frames;	/*  0x6084 */
+	u32 txrx_128_255_byte_frames;	/*  0x6088 */
+	u32 txrx_256_511_byte_frames;	/*  0x608C */
+	u32 txrx_512_1023_byte_frames;	/*  0x6090 */
+	u32 txrx_1024_1518_byte_frames;	/*  0x6094 */
+	u32 txrx_1519_1522_gvln_frames;	/*  0x6098 */
+	u32 rx_bytes;			/*  0x609C */
+	u32 rx_packets;			/*  0x60A0 */
+	u32 rx_fcs_errs;		/*  0x60A4 */
+	u32 rx_multicast_packets;	/*  0x60A8 */
+	u32 rx_broadcast_packets;	/*  0x60AC */
+	u32 rx_control_frames;		/*  0x60B0 */
+	u32 rx_pause_frames;		/*  0x60B4 */
+	u32 rx_unknown_opcodes;		/*  0x60B8 */
+	u32 rx_align_errs;		/*  0x60BC */
+	u32 rx_frame_len_errs;		/*  0x60C0 */
+	u32 rx_code_errs;		/*  0x60C4 */
+	u32 rx_carrier_sense_errs;	/*  0x60C8 */
+	u32 rx_undersize_packets;	/*  0x60CC */
+	u32 rx_oversize_packets;	/*  0x60D0 */
+	u32 rx_fragment_packets;	/*  0x60D4 */
+	u32 rx_jabbers;			/*  0x60D8 */
+	u32 rx_drops;			/*  0x60DC */
+	u32 tx_bytes;			/*  0x60E0 */
+	u32 tx_packets;			/*  0x60E4 */
+	u32 tx_multicast_packets;	/*  0x60E8 */
+	u32 tx_broadcast_packets;	/*  0x60EC */
+	u32 tx_pause_frames;		/*  0x60F0 */
+	u32 tx_deferred;		/*  0x60F4 */
+	u32 tx_excessive_deferred;	/*  0x60F8 */
+	u32 tx_single_collisions;	/*  0x60FC */
+	u32 tx_multiple_collisions;	/*  0x6100 */
+	u32 tx_late_collisions;		/*  0x6104 */
+	u32 tx_excessive_collisions;	/*  0x6108 */
+	u32 tx_total_collisions;	/*  0x610C */
+	u32 tx_pause_honored_frames;	/*  0x6110 */
+	u32 tx_drops;			/*  0x6114 */
+	u32 tx_jabbers;			/*  0x6118 */
+	u32 tx_fcs_errs;		/*  0x611C */
+	u32 tx_control_frames;		/*  0x6120 */
+	u32 tx_oversize_frames;		/*  0x6124 */
+	u32 tx_undersize_frames;	/*  0x6128 */
+	u32 tx_fragments;		/*  0x612C */
+	u32 carry_reg1;			/*  0x6130 */
+	u32 carry_reg2;			/*  0x6134 */
+	u32 carry_reg1_mask;		/*  0x6138 */
+	u32 carry_reg2_mask;		/*  0x613C */
+};
+
+/* END OF MAC STAT REGISTER ADDRESS MAP */
+
+/* START OF MMC REGISTER ADDRESS MAP */
+/* Main Memory Controller Control reg in mmc address map.
+ * located at address 0x7000
+ */
+#define ET_MMC_ENABLE		1
+#define ET_MMC_ARB_DISABLE	2
+#define ET_MMC_RXMAC_DISABLE	4
+#define ET_MMC_TXMAC_DISABLE	8
+#define ET_MMC_TXDMA_DISABLE	16
+#define ET_MMC_RXDMA_DISABLE	32
+#define ET_MMC_FORCE_CE		64
+
+/* Main Memory Controller Host Memory Access Address reg in mmc
+ * address map.  Located at address 0x7004. Top 16 bits hold the address bits
+ */
+#define ET_SRAM_REQ_ACCESS	1
+#define ET_SRAM_WR_ACCESS	2
+#define ET_SRAM_IS_CTRL		4
+
+/* structure for Main Memory Controller Host Memory Access Data reg in mmc
+ * address map.  Located at address 0x7008 - 0x7014
+ * Defined earlier (u32)
+ */
+
+/* Memory Control Module of JAGCore Address Mapping
+ */
+struct mmc_regs {		/* Location: */
+	u32 mmc_ctrl;		/*  0x7000 */
+	u32 sram_access;	/*  0x7004 */
+	u32 sram_word1;		/*  0x7008 */
+	u32 sram_word2;		/*  0x700C */
+	u32 sram_word3;		/*  0x7010 */
+	u32 sram_word4;		/*  0x7014 */
+};
+
+/* END OF MMC REGISTER ADDRESS MAP */
+
+/* JAGCore Address Mapping
+ */
+struct address_map {
+	struct global_regs global;
+	/* unused section of global address map */
+	u8 unused_global[4096 - sizeof(struct global_regs)];
+	struct txdma_regs txdma;
+	/* unused section of txdma address map */
+	u8 unused_txdma[4096 - sizeof(struct txdma_regs)];
+	struct rxdma_regs rxdma;
+	/* unused section of rxdma address map */
+	u8 unused_rxdma[4096 - sizeof(struct rxdma_regs)];
+	struct txmac_regs txmac;
+	/* unused section of txmac address map */
+	u8 unused_txmac[4096 - sizeof(struct txmac_regs)];
+	struct rxmac_regs rxmac;
+	/* unused section of rxmac address map */
+	u8 unused_rxmac[4096 - sizeof(struct rxmac_regs)];
+	struct mac_regs mac;
+	/* unused section of mac address map */
+	u8 unused_mac[4096 - sizeof(struct mac_regs)];
+	struct macstat_regs macstat;
+	/* unused section of mac stat address map */
+	u8 unused_mac_stat[4096 - sizeof(struct macstat_regs)];
+	struct mmc_regs mmc;
+	/* unused section of mmc address map */
+	u8 unused_mmc[4096 - sizeof(struct mmc_regs)];
+	/* unused section of address map */
+	u8 unused_[1015808];
+	u8 unused_exp_rom[4096];	/* MGS-size TBD */
+	u8 unused__[524288];	/* unused section of address map */
+};
+
+/* Defines for generic MII registers 0x00 -> 0x0F can be found in
+ * include/linux/mii.h
+ */
+/* some defines for modem registers that seem to be 'reserved' */
+#define PHY_INDEX_REG              0x10
+#define PHY_DATA_REG               0x11
+#define PHY_MPHY_CONTROL_REG       0x12
+
+/* defines for specified registers */
+#define PHY_LOOPBACK_CONTROL       0x13	/* TRU_VMI_LOOPBACK_CONTROL_1_REG 19 */
+					/* TRU_VMI_LOOPBACK_CONTROL_2_REG 20 */
+#define PHY_REGISTER_MGMT_CONTROL  0x15	/* TRU_VMI_MI_SEQ_CONTROL_REG     21 */
+#define PHY_CONFIG                 0x16	/* TRU_VMI_CONFIGURATION_REG      22 */
+#define PHY_PHY_CONTROL            0x17	/* TRU_VMI_PHY_CONTROL_REG        23 */
+#define PHY_INTERRUPT_MASK         0x18	/* TRU_VMI_INTERRUPT_MASK_REG     24 */
+#define PHY_INTERRUPT_STATUS       0x19	/* TRU_VMI_INTERRUPT_STATUS_REG   25 */
+#define PHY_PHY_STATUS             0x1A	/* TRU_VMI_PHY_STATUS_REG         26 */
+#define PHY_LED_1                  0x1B	/* TRU_VMI_LED_CONTROL_1_REG      27 */
+#define PHY_LED_2                  0x1C	/* TRU_VMI_LED_CONTROL_2_REG      28 */
+					/* TRU_VMI_LINK_CONTROL_REG       29 */
+					/* TRU_VMI_TIMING_CONTROL_REG        */
+
+/* MI Register 10: Gigabit basic mode status reg(Reg 0x0A) */
+#define ET_1000BT_MSTR_SLV 0x4000
+
+/* MI Register 16 - 18: Reserved Reg(0x10-0x12) */
+
+/* MI Register 19: Loopback Control Reg(0x13)
+ *	15:	mii_en
+ *	14:	pcs_en
+ *	13:	pmd_en
+ *	12:	all_digital_en
+ *	11:	replica_en
+ *	10:	line_driver_en
+ *	9-0:	reserved
+ */
+
+/* MI Register 20: Reserved Reg(0x14) */
+
+/* MI Register 21: Management Interface Control Reg(0x15)
+ *	15-11:	reserved
+ *	10-4:	mi_error_count
+ *	3:	reserved
+ *	2:	ignore_10g_fr
+ *	1:	reserved
+ *	0:	preamble_suppress_en
+ */
+
+/* MI Register 22: PHY Configuration Reg(0x16)
+ *	15:	crs_tx_en
+ *	14:	reserved
+ *	13-12:	tx_fifo_depth
+ *	11-10:	speed_downshift
+ *	9:	pbi_detect
+ *	8:	tbi_rate
+ *	7:	alternate_np
+ *	6:	group_mdio_en
+ *	5:	tx_clock_en
+ *	4:	sys_clock_en
+ *	3:	reserved
+ *	2-0:	mac_if_mode
+ */
+#define ET_PHY_CONFIG_TX_FIFO_DEPTH	0x3000
+
+#define ET_PHY_CONFIG_FIFO_DEPTH_8	0x0000
+#define ET_PHY_CONFIG_FIFO_DEPTH_16	0x1000
+#define ET_PHY_CONFIG_FIFO_DEPTH_32	0x2000
+#define ET_PHY_CONFIG_FIFO_DEPTH_64	0x3000
+
+/* MI Register 23: PHY CONTROL Reg(0x17)
+ *	15:	reserved
+ *	14:	tdr_en
+ *	13:	reserved
+ *	12-11:	downshift_attempts
+ *	10-6:	reserved
+ *	5:	jabber_10baseT
+ *	4:	sqe_10baseT
+ *	3:	tp_loopback_10baseT
+ *	2:	preamble_gen_en
+ *	1:	reserved
+ *	0:	force_int
+ */
+
+/* MI Register 24: Interrupt Mask Reg(0x18)
+ *	15-10:	reserved
+ *	9:	mdio_sync_lost
+ *	8:	autoneg_status
+ *	7:	hi_bit_err
+ *	6:	np_rx
+ *	5:	err_counter_full
+ *	4:	fifo_over_underflow
+ *	3:	rx_status
+ *	2:	link_status
+ *	1:	automatic_speed
+ *	0:	int_en
+ */
+
+/* MI Register 25: Interrupt Status Reg(0x19)
+ *	15-10:	reserved
+ *	9:	mdio_sync_lost
+ *	8:	autoneg_status
+ *	7:	hi_bit_err
+ *	6:	np_rx
+ *	5:	err_counter_full
+ *	4:	fifo_over_underflow
+ *	3:	rx_status
+ *	2:	link_status
+ *	1:	automatic_speed
+ *	0:	int_en
+ */
+
+/* MI Register 26: PHY Status Reg(0x1A)
+ *	15:	reserved
+ *	14-13:	autoneg_fault
+ *	12:	autoneg_status
+ *	11:	mdi_x_status
+ *	10:	polarity_status
+ *	9-8:	speed_status
+ *	7:	duplex_status
+ *	6:	link_status
+ *	5:	tx_status
+ *	4:	rx_status
+ *	3:	collision_status
+ *	2:	autoneg_en
+ *	1:	pause_en
+ *	0:	asymmetric_dir
+ */
+#define ET_PHY_AUTONEG_STATUS	0x1000
+#define ET_PHY_POLARITY_STATUS	0x0400
+#define ET_PHY_SPEED_STATUS	0x0300
+#define ET_PHY_DUPLEX_STATUS	0x0080
+#define ET_PHY_LSTATUS		0x0040
+#define ET_PHY_AUTONEG_ENABLE	0x0020
+
+/* MI Register 27: LED Control Reg 1(0x1B)
+ *	15-14:	reserved
+ *	13-12:	led_dup_indicate
+ *	11-10:	led_10baseT
+ *	9-8:	led_collision
+ *	7-4:	reserved
+ *	3-2:	pulse_dur
+ *	1:	pulse_stretch1
+ *	0:	pulse_stretch0
+ */
+
+/* MI Register 28: LED Control Reg 2(0x1C)
+ *	15-12:	led_link
+ *	11-8:	led_tx_rx
+ *	7-4:	led_100BaseTX
+ *	3-0:	led_1000BaseT
+ */
+#define ET_LED2_LED_LINK	0xF000
+#define ET_LED2_LED_TXRX	0x0F00
+#define ET_LED2_LED_100TX	0x00F0
+#define ET_LED2_LED_1000T	0x000F
+
+/* defines for LED control reg 2 values */
+#define LED_VAL_1000BT			0x0
+#define LED_VAL_100BTX			0x1
+#define LED_VAL_10BT			0x2
+#define LED_VAL_1000BT_100BTX		0x3 /* 1000BT on, 100BTX blink */
+#define LED_VAL_LINKON			0x4
+#define LED_VAL_TX			0x5
+#define LED_VAL_RX			0x6
+#define LED_VAL_TXRX			0x7 /* TX or RX */
+#define LED_VAL_DUPLEXFULL		0x8
+#define LED_VAL_COLLISION		0x9
+#define LED_VAL_LINKON_ACTIVE		0xA /* Link on, activity blink */
+#define LED_VAL_LINKON_RECV		0xB /* Link on, receive blink */
+#define LED_VAL_DUPLEXFULL_COLLISION	0xC /* Duplex on, collision blink */
+#define LED_VAL_BLINK			0xD
+#define LED_VAL_ON			0xE
+#define LED_VAL_OFF			0xF
+
+#define LED_LINK_SHIFT			12
+#define LED_TXRX_SHIFT			8
+#define LED_100TX_SHIFT			4
+
+/* MI Register 29 - 31: Reserved Reg(0x1D - 0x1E) */