mv643xx_eth: Merge drivers/net/mv643xx_eth.h into mv643xx_eth.c

Since drivers/net/mv643xx_eth.c is the only user of
drivers/net/mv643xx_eth.h, there's not much use in having the header
file as a separate file, so merge the header into the driver.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: Dale Farnsworth <dale@farnsworth.org>

1 files changed, 557 insertions, 1 deletions

diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c
index ca120e53b58..b1980328ead 100644
--- a/drivers/net/mv643xx_eth.c
+++ b/drivers/net/mv643xx_eth.c
@@ -43,14 +43,570 @@
 #include <linux/ethtool.h>
 #include <linux/platform_device.h>
 
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/spinlock.h>
+#include <linux/workqueue.h>
+#include <linux/mii.h>
+
+#include <linux/mv643xx_eth.h>
+
 #include <asm/io.h>
 #include <asm/types.h>
 #include <asm/pgtable.h>
 #include <asm/system.h>
 #include <asm/delay.h>
-#include "mv643xx_eth.h"
+#include <asm/dma-mapping.h>
+
+/* Checksum offload for Tx works for most packets, but
+ * fails if previous packet sent did not use hw csum
+ */
+#define MV643XX_CHECKSUM_OFFLOAD_TX
+#define MV643XX_NAPI
+#define MV643XX_TX_FAST_REFILL
+#undef	MV643XX_COAL
+
+/*
+ * Number of RX / TX descriptors on RX / TX rings.
+ * Note that allocating RX descriptors is done by allocating the RX
+ * ring AND a preallocated RX buffers (skb's) for each descriptor.
+ * The TX descriptors only allocates the TX descriptors ring,
+ * with no pre allocated TX buffers (skb's are allocated by higher layers.
+ */
+
+/* Default TX ring size is 1000 descriptors */
+#define MV643XX_DEFAULT_TX_QUEUE_SIZE 1000
+
+/* Default RX ring size is 400 descriptors */
+#define MV643XX_DEFAULT_RX_QUEUE_SIZE 400
+
+#define MV643XX_TX_COAL 100
+#ifdef MV643XX_COAL
+#define MV643XX_RX_COAL 100
+#endif
+
+#ifdef MV643XX_CHECKSUM_OFFLOAD_TX
+#define MAX_DESCS_PER_SKB	(MAX_SKB_FRAGS + 1)
+#else
+#define MAX_DESCS_PER_SKB	1
+#endif
+
+#define ETH_VLAN_HLEN		4
+#define ETH_FCS_LEN		4
+#define ETH_HW_IP_ALIGN		2		/* hw aligns IP header */
+#define ETH_WRAPPER_LEN		(ETH_HW_IP_ALIGN + ETH_HLEN + \
+					ETH_VLAN_HLEN + ETH_FCS_LEN)
+#define ETH_RX_SKB_SIZE		(dev->mtu + ETH_WRAPPER_LEN + \
+					dma_get_cache_alignment())
+
+/*
+ * Registers shared between all ports.
+ */
+#define PHY_ADDR_REG				0x0000
+#define SMI_REG					0x0004
+
+/*
+ * Per-port registers.
+ */
+#define PORT_CONFIG_REG(p)				(0x0400 + ((p) << 10))
+#define PORT_CONFIG_EXTEND_REG(p)			(0x0404 + ((p) << 10))
+#define MAC_ADDR_LOW(p)					(0x0414 + ((p) << 10))
+#define MAC_ADDR_HIGH(p)				(0x0418 + ((p) << 10))
+#define SDMA_CONFIG_REG(p)				(0x041c + ((p) << 10))
+#define PORT_SERIAL_CONTROL_REG(p)			(0x043c + ((p) << 10))
+#define PORT_STATUS_REG(p)				(0x0444 + ((p) << 10))
+#define TRANSMIT_QUEUE_COMMAND_REG(p)			(0x0448 + ((p) << 10))
+#define MAXIMUM_TRANSMIT_UNIT(p)			(0x0458 + ((p) << 10))
+#define INTERRUPT_CAUSE_REG(p)				(0x0460 + ((p) << 10))
+#define INTERRUPT_CAUSE_EXTEND_REG(p)			(0x0464 + ((p) << 10))
+#define INTERRUPT_MASK_REG(p)				(0x0468 + ((p) << 10))
+#define INTERRUPT_EXTEND_MASK_REG(p)			(0x046c + ((p) << 10))
+#define TX_FIFO_URGENT_THRESHOLD_REG(p)			(0x0474 + ((p) << 10))
+#define RX_CURRENT_QUEUE_DESC_PTR_0(p)			(0x060c + ((p) << 10))
+#define RECEIVE_QUEUE_COMMAND_REG(p)			(0x0680 + ((p) << 10))
+#define TX_CURRENT_QUEUE_DESC_PTR_0(p)			(0x06c0 + ((p) << 10))
+#define MIB_COUNTERS_BASE(p)				(0x1000 + ((p) << 7))
+#define DA_FILTER_SPECIAL_MULTICAST_TABLE_BASE(p)	(0x1400 + ((p) << 10))
+#define DA_FILTER_OTHER_MULTICAST_TABLE_BASE(p)		(0x1500 + ((p) << 10))
+#define DA_FILTER_UNICAST_TABLE_BASE(p)			(0x1600 + ((p) << 10))
+
+/* These macros describe Ethernet Port configuration reg (Px_cR) bits */
+#define UNICAST_NORMAL_MODE		(0 << 0)
+#define UNICAST_PROMISCUOUS_MODE	(1 << 0)
+#define DEFAULT_RX_QUEUE(queue)		((queue) << 1)
+#define DEFAULT_RX_ARP_QUEUE(queue)	((queue) << 4)
+#define RECEIVE_BC_IF_NOT_IP_OR_ARP	(0 << 7)
+#define REJECT_BC_IF_NOT_IP_OR_ARP	(1 << 7)
+#define RECEIVE_BC_IF_IP		(0 << 8)
+#define REJECT_BC_IF_IP			(1 << 8)
+#define RECEIVE_BC_IF_ARP		(0 << 9)
+#define REJECT_BC_IF_ARP		(1 << 9)
+#define TX_AM_NO_UPDATE_ERROR_SUMMARY	(1 << 12)
+#define CAPTURE_TCP_FRAMES_DIS		(0 << 14)
+#define CAPTURE_TCP_FRAMES_EN		(1 << 14)
+#define CAPTURE_UDP_FRAMES_DIS		(0 << 15)
+#define CAPTURE_UDP_FRAMES_EN		(1 << 15)
+#define DEFAULT_RX_TCP_QUEUE(queue)	((queue) << 16)
+#define DEFAULT_RX_UDP_QUEUE(queue)	((queue) << 19)
+#define DEFAULT_RX_BPDU_QUEUE(queue)	((queue) << 22)
+
+#define PORT_CONFIG_DEFAULT_VALUE			\
+		UNICAST_NORMAL_MODE		|	\
+		DEFAULT_RX_QUEUE(0)		|	\
+		DEFAULT_RX_ARP_QUEUE(0)		|	\
+		RECEIVE_BC_IF_NOT_IP_OR_ARP	|	\
+		RECEIVE_BC_IF_IP		|	\
+		RECEIVE_BC_IF_ARP		|	\
+		CAPTURE_TCP_FRAMES_DIS		|	\
+		CAPTURE_UDP_FRAMES_DIS		|	\
+		DEFAULT_RX_TCP_QUEUE(0)		|	\
+		DEFAULT_RX_UDP_QUEUE(0)		|	\
+		DEFAULT_RX_BPDU_QUEUE(0)
+
+/* These macros describe Ethernet Port configuration extend reg (Px_cXR) bits*/
+#define CLASSIFY_EN				(1 << 0)
+#define SPAN_BPDU_PACKETS_AS_NORMAL		(0 << 1)
+#define SPAN_BPDU_PACKETS_TO_RX_QUEUE_7		(1 << 1)
+#define PARTITION_DISABLE			(0 << 2)
+#define PARTITION_ENABLE			(1 << 2)
+
+#define PORT_CONFIG_EXTEND_DEFAULT_VALUE		\
+		SPAN_BPDU_PACKETS_AS_NORMAL	|	\
+		PARTITION_DISABLE
+
+/* These macros describe Ethernet Port Sdma configuration reg (SDCR) bits */
+#define RIFB				(1 << 0)
+#define RX_BURST_SIZE_1_64BIT		(0 << 1)
+#define RX_BURST_SIZE_2_64BIT		(1 << 1)
+#define RX_BURST_SIZE_4_64BIT		(2 << 1)
+#define RX_BURST_SIZE_8_64BIT		(3 << 1)
+#define RX_BURST_SIZE_16_64BIT		(4 << 1)
+#define BLM_RX_NO_SWAP			(1 << 4)
+#define BLM_RX_BYTE_SWAP		(0 << 4)
+#define BLM_TX_NO_SWAP			(1 << 5)
+#define BLM_TX_BYTE_SWAP		(0 << 5)
+#define DESCRIPTORS_BYTE_SWAP		(1 << 6)
+#define DESCRIPTORS_NO_SWAP		(0 << 6)
+#define IPG_INT_RX(value)		(((value) & 0x3fff) << 8)
+#define TX_BURST_SIZE_1_64BIT		(0 << 22)
+#define TX_BURST_SIZE_2_64BIT		(1 << 22)
+#define TX_BURST_SIZE_4_64BIT		(2 << 22)
+#define TX_BURST_SIZE_8_64BIT		(3 << 22)
+#define TX_BURST_SIZE_16_64BIT		(4 << 22)
+
+#if defined(__BIG_ENDIAN)
+#define PORT_SDMA_CONFIG_DEFAULT_VALUE		\
+		RX_BURST_SIZE_4_64BIT	|	\
+		IPG_INT_RX(0)		|	\
+		TX_BURST_SIZE_4_64BIT
+#elif defined(__LITTLE_ENDIAN)
+#define PORT_SDMA_CONFIG_DEFAULT_VALUE		\
+		RX_BURST_SIZE_4_64BIT	|	\
+		BLM_RX_NO_SWAP		|	\
+		BLM_TX_NO_SWAP		|	\
+		IPG_INT_RX(0)		|	\
+		TX_BURST_SIZE_4_64BIT
+#else
+#error One of __BIG_ENDIAN or __LITTLE_ENDIAN must be defined
+#endif
+
+/* These macros describe Ethernet Port serial control reg (PSCR) bits */
+#define SERIAL_PORT_DISABLE			(0 << 0)
+#define SERIAL_PORT_ENABLE			(1 << 0)
+#define DO_NOT_FORCE_LINK_PASS			(0 << 1)
+#define FORCE_LINK_PASS				(1 << 1)
+#define ENABLE_AUTO_NEG_FOR_DUPLX		(0 << 2)
+#define DISABLE_AUTO_NEG_FOR_DUPLX		(1 << 2)
+#define ENABLE_AUTO_NEG_FOR_FLOW_CTRL		(0 << 3)
+#define DISABLE_AUTO_NEG_FOR_FLOW_CTRL		(1 << 3)
+#define ADV_NO_FLOW_CTRL			(0 << 4)
+#define ADV_SYMMETRIC_FLOW_CTRL			(1 << 4)
+#define FORCE_FC_MODE_NO_PAUSE_DIS_TX		(0 << 5)
+#define FORCE_FC_MODE_TX_PAUSE_DIS		(1 << 5)
+#define FORCE_BP_MODE_NO_JAM			(0 << 7)
+#define FORCE_BP_MODE_JAM_TX			(1 << 7)
+#define FORCE_BP_MODE_JAM_TX_ON_RX_ERR		(2 << 7)
+#define SERIAL_PORT_CONTROL_RESERVED		(1 << 9)
+#define FORCE_LINK_FAIL				(0 << 10)
+#define DO_NOT_FORCE_LINK_FAIL			(1 << 10)
+#define RETRANSMIT_16_ATTEMPTS			(0 << 11)
+#define RETRANSMIT_FOREVER			(1 << 11)
+#define ENABLE_AUTO_NEG_SPEED_GMII		(0 << 13)
+#define DISABLE_AUTO_NEG_SPEED_GMII		(1 << 13)
+#define DTE_ADV_0				(0 << 14)
+#define DTE_ADV_1				(1 << 14)
+#define DISABLE_AUTO_NEG_BYPASS			(0 << 15)
+#define ENABLE_AUTO_NEG_BYPASS			(1 << 15)
+#define AUTO_NEG_NO_CHANGE			(0 << 16)
+#define RESTART_AUTO_NEG			(1 << 16)
+#define MAX_RX_PACKET_1518BYTE			(0 << 17)
+#define MAX_RX_PACKET_1522BYTE			(1 << 17)
+#define MAX_RX_PACKET_1552BYTE			(2 << 17)
+#define MAX_RX_PACKET_9022BYTE			(3 << 17)
+#define MAX_RX_PACKET_9192BYTE			(4 << 17)
+#define MAX_RX_PACKET_9700BYTE			(5 << 17)
+#define MAX_RX_PACKET_MASK			(7 << 17)
+#define CLR_EXT_LOOPBACK			(0 << 20)
+#define SET_EXT_LOOPBACK			(1 << 20)
+#define SET_HALF_DUPLEX_MODE			(0 << 21)
+#define SET_FULL_DUPLEX_MODE			(1 << 21)
+#define DISABLE_FLOW_CTRL_TX_RX_IN_FULL_DUPLEX	(0 << 22)
+#define ENABLE_FLOW_CTRL_TX_RX_IN_FULL_DUPLEX	(1 << 22)
+#define SET_GMII_SPEED_TO_10_100		(0 << 23)
+#define SET_GMII_SPEED_TO_1000			(1 << 23)
+#define SET_MII_SPEED_TO_10			(0 << 24)
+#define SET_MII_SPEED_TO_100			(1 << 24)
+
+#define PORT_SERIAL_CONTROL_DEFAULT_VALUE		\
+		DO_NOT_FORCE_LINK_PASS		|	\
+		ENABLE_AUTO_NEG_FOR_DUPLX	|	\
+		DISABLE_AUTO_NEG_FOR_FLOW_CTRL	|	\
+		ADV_SYMMETRIC_FLOW_CTRL		|	\
+		FORCE_FC_MODE_NO_PAUSE_DIS_TX	|	\
+		FORCE_BP_MODE_NO_JAM		|	\
+		(1 << 9) /* reserved */		|	\
+		DO_NOT_FORCE_LINK_FAIL		|	\
+		RETRANSMIT_16_ATTEMPTS		|	\
+		ENABLE_AUTO_NEG_SPEED_GMII	|	\
+		DTE_ADV_0			|	\
+		DISABLE_AUTO_NEG_BYPASS		|	\
+		AUTO_NEG_NO_CHANGE		|	\
+		MAX_RX_PACKET_9700BYTE		|	\
+		CLR_EXT_LOOPBACK		|	\
+		SET_FULL_DUPLEX_MODE		|	\
+		ENABLE_FLOW_CTRL_TX_RX_IN_FULL_DUPLEX
+
+/* These macros describe Ethernet Serial Status reg (PSR) bits */
+#define PORT_STATUS_MODE_10_BIT		(1 << 0)
+#define PORT_STATUS_LINK_UP		(1 << 1)
+#define PORT_STATUS_FULL_DUPLEX		(1 << 2)
+#define PORT_STATUS_FLOW_CONTROL	(1 << 3)
+#define PORT_STATUS_GMII_1000		(1 << 4)
+#define PORT_STATUS_MII_100		(1 << 5)
+/* PSR bit 6 is undocumented */
+#define PORT_STATUS_TX_IN_PROGRESS	(1 << 7)
+#define PORT_STATUS_AUTONEG_BYPASSED	(1 << 8)
+#define PORT_STATUS_PARTITION		(1 << 9)
+#define PORT_STATUS_TX_FIFO_EMPTY	(1 << 10)
+/* PSR bits 11-31 are reserved */
+
+#define PORT_DEFAULT_TRANSMIT_QUEUE_SIZE	800
+#define PORT_DEFAULT_RECEIVE_QUEUE_SIZE		400
+
+#define DESC_SIZE				64
+
+#define ETH_RX_QUEUES_ENABLED	(1 << 0)	/* use only Q0 for receive */
+#define ETH_TX_QUEUES_ENABLED	(1 << 0)	/* use only Q0 for transmit */
+
+#define ETH_INT_CAUSE_RX_DONE	(ETH_RX_QUEUES_ENABLED << 2)
+#define ETH_INT_CAUSE_RX_ERROR	(ETH_RX_QUEUES_ENABLED << 9)
+#define ETH_INT_CAUSE_RX	(ETH_INT_CAUSE_RX_DONE | ETH_INT_CAUSE_RX_ERROR)
+#define ETH_INT_CAUSE_EXT	0x00000002
+#define ETH_INT_UNMASK_ALL	(ETH_INT_CAUSE_RX | ETH_INT_CAUSE_EXT)
+
+#define ETH_INT_CAUSE_TX_DONE	(ETH_TX_QUEUES_ENABLED << 0)
+#define ETH_INT_CAUSE_TX_ERROR	(ETH_TX_QUEUES_ENABLED << 8)
+#define ETH_INT_CAUSE_TX	(ETH_INT_CAUSE_TX_DONE | ETH_INT_CAUSE_TX_ERROR)
+#define ETH_INT_CAUSE_PHY	0x00010000
+#define ETH_INT_CAUSE_STATE	0x00100000
+#define ETH_INT_UNMASK_ALL_EXT	(ETH_INT_CAUSE_TX | ETH_INT_CAUSE_PHY | \
+					ETH_INT_CAUSE_STATE)
+
+#define ETH_INT_MASK_ALL	0x00000000
+#define ETH_INT_MASK_ALL_EXT	0x00000000
+
+#define PHY_WAIT_ITERATIONS	1000	/* 1000 iterations * 10uS = 10mS max */
+#define PHY_WAIT_MICRO_SECONDS	10
+
+/* Buffer offset from buffer pointer */
+#define RX_BUF_OFFSET				0x2
+
+/* Gigabit Ethernet Unit Global Registers */
+
+/* MIB Counters register definitions */
+#define ETH_MIB_GOOD_OCTETS_RECEIVED_LOW	0x0
+#define ETH_MIB_GOOD_OCTETS_RECEIVED_HIGH	0x4
+#define ETH_MIB_BAD_OCTETS_RECEIVED		0x8
+#define ETH_MIB_INTERNAL_MAC_TRANSMIT_ERR	0xc
+#define ETH_MIB_GOOD_FRAMES_RECEIVED		0x10
+#define ETH_MIB_BAD_FRAMES_RECEIVED		0x14
+#define ETH_MIB_BROADCAST_FRAMES_RECEIVED	0x18
+#define ETH_MIB_MULTICAST_FRAMES_RECEIVED	0x1c
+#define ETH_MIB_FRAMES_64_OCTETS		0x20
+#define ETH_MIB_FRAMES_65_TO_127_OCTETS		0x24
+#define ETH_MIB_FRAMES_128_TO_255_OCTETS	0x28
+#define ETH_MIB_FRAMES_256_TO_511_OCTETS	0x2c
+#define ETH_MIB_FRAMES_512_TO_1023_OCTETS	0x30
+#define ETH_MIB_FRAMES_1024_TO_MAX_OCTETS	0x34
+#define ETH_MIB_GOOD_OCTETS_SENT_LOW		0x38
+#define ETH_MIB_GOOD_OCTETS_SENT_HIGH		0x3c
+#define ETH_MIB_GOOD_FRAMES_SENT		0x40
+#define ETH_MIB_EXCESSIVE_COLLISION		0x44
+#define ETH_MIB_MULTICAST_FRAMES_SENT		0x48
+#define ETH_MIB_BROADCAST_FRAMES_SENT		0x4c
+#define ETH_MIB_UNREC_MAC_CONTROL_RECEIVED	0x50
+#define ETH_MIB_FC_SENT				0x54
+#define ETH_MIB_GOOD_FC_RECEIVED		0x58
+#define ETH_MIB_BAD_FC_RECEIVED			0x5c
+#define ETH_MIB_UNDERSIZE_RECEIVED		0x60
+#define ETH_MIB_FRAGMENTS_RECEIVED		0x64
+#define ETH_MIB_OVERSIZE_RECEIVED		0x68
+#define ETH_MIB_JABBER_RECEIVED			0x6c
+#define ETH_MIB_MAC_RECEIVE_ERROR		0x70
+#define ETH_MIB_BAD_CRC_EVENT			0x74
+#define ETH_MIB_COLLISION			0x78
+#define ETH_MIB_LATE_COLLISION			0x7c
+
+/* Port serial status reg (PSR) */
+#define ETH_INTERFACE_PCM			0x00000001
+#define ETH_LINK_IS_UP				0x00000002
+#define ETH_PORT_AT_FULL_DUPLEX			0x00000004
+#define ETH_RX_FLOW_CTRL_ENABLED		0x00000008
+#define ETH_GMII_SPEED_1000			0x00000010
+#define ETH_MII_SPEED_100			0x00000020
+#define ETH_TX_IN_PROGRESS			0x00000080
+#define ETH_BYPASS_ACTIVE			0x00000100
+#define ETH_PORT_AT_PARTITION_STATE		0x00000200
+#define ETH_PORT_TX_FIFO_EMPTY			0x00000400
+
+/* SMI reg */
+#define ETH_SMI_BUSY		0x10000000	/* 0 - Write, 1 - Read	*/
+#define ETH_SMI_READ_VALID	0x08000000	/* 0 - Write, 1 - Read	*/
+#define ETH_SMI_OPCODE_WRITE	0		/* Completion of Read	*/
+#define ETH_SMI_OPCODE_READ	0x04000000	/* Operation is in progress */
+
+/* Interrupt Cause Register Bit Definitions */
+
+/* SDMA command status fields macros */
+
+/* Tx & Rx descriptors status */
+#define ETH_ERROR_SUMMARY			0x00000001
+
+/* Tx & Rx descriptors command */
+#define ETH_BUFFER_OWNED_BY_DMA			0x80000000
+
+/* Tx descriptors status */
+#define ETH_LC_ERROR				0
+#define ETH_UR_ERROR				0x00000002
+#define ETH_RL_ERROR				0x00000004
+#define ETH_LLC_SNAP_FORMAT			0x00000200
+
+/* Rx descriptors status */
+#define ETH_OVERRUN_ERROR			0x00000002
+#define ETH_MAX_FRAME_LENGTH_ERROR		0x00000004
+#define ETH_RESOURCE_ERROR			0x00000006
+#define ETH_VLAN_TAGGED				0x00080000
+#define ETH_BPDU_FRAME				0x00100000
+#define ETH_UDP_FRAME_OVER_IP_V_4		0x00200000
+#define ETH_OTHER_FRAME_TYPE			0x00400000
+#define ETH_LAYER_2_IS_ETH_V_2			0x00800000
+#define ETH_FRAME_TYPE_IP_V_4			0x01000000
+#define ETH_FRAME_HEADER_OK			0x02000000
+#define ETH_RX_LAST_DESC			0x04000000
+#define ETH_RX_FIRST_DESC			0x08000000
+#define ETH_UNKNOWN_DESTINATION_ADDR		0x10000000
+#define ETH_RX_ENABLE_INTERRUPT			0x20000000
+#define ETH_LAYER_4_CHECKSUM_OK			0x40000000
+
+/* Rx descriptors byte count */
+#define ETH_FRAME_FRAGMENTED			0x00000004
+
+/* Tx descriptors command */
+#define ETH_LAYER_4_CHECKSUM_FIRST_DESC		0x00000400
+#define ETH_FRAME_SET_TO_VLAN			0x00008000
+#define ETH_UDP_FRAME				0x00010000
+#define ETH_GEN_TCP_UDP_CHECKSUM		0x00020000
+#define ETH_GEN_IP_V_4_CHECKSUM			0x00040000
+#define ETH_ZERO_PADDING			0x00080000
+#define ETH_TX_LAST_DESC			0x00100000
+#define ETH_TX_FIRST_DESC			0x00200000
+#define ETH_GEN_CRC				0x00400000
+#define ETH_TX_ENABLE_INTERRUPT			0x00800000
+#define ETH_AUTO_MODE				0x40000000
+
+#define ETH_TX_IHL_SHIFT			11
+
+/* typedefs */
+
+typedef enum _eth_func_ret_status {
+	ETH_OK,			/* Returned as expected.		*/
+	ETH_ERROR,		/* Fundamental error.			*/
+	ETH_RETRY,		/* Could not process request. Try later.*/
+	ETH_END_OF_JOB,		/* Ring has nothing to process.		*/
+	ETH_QUEUE_FULL,		/* Ring resource error.			*/
+	ETH_QUEUE_LAST_RESOURCE	/* Ring resources about to exhaust.	*/
+} ETH_FUNC_RET_STATUS;
+
+typedef enum _eth_target {
+	ETH_TARGET_DRAM,
+	ETH_TARGET_DEVICE,
+	ETH_TARGET_CBS,
+	ETH_TARGET_PCI0,
+	ETH_TARGET_PCI1
+} ETH_TARGET;
+
+/* These are for big-endian machines.  Little endian needs different
+ * definitions.
+ */
+#if defined(__BIG_ENDIAN)
+struct eth_rx_desc {
+	u16 byte_cnt;		/* Descriptor buffer byte count		*/
+	u16 buf_size;		/* Buffer size				*/
+	u32 cmd_sts;		/* Descriptor command status		*/
+	u32 next_desc_ptr;	/* Next descriptor pointer		*/
+	u32 buf_ptr;		/* Descriptor buffer pointer		*/
+};
+
+struct eth_tx_desc {
+	u16 byte_cnt;		/* buffer byte count			*/
+	u16 l4i_chk;		/* CPU provided TCP checksum		*/
+	u32 cmd_sts;		/* Command/status field			*/
+	u32 next_desc_ptr;	/* Pointer to next descriptor		*/
+	u32 buf_ptr;		/* pointer to buffer for this descriptor*/
+};
+#elif defined(__LITTLE_ENDIAN)
+struct eth_rx_desc {
+	u32 cmd_sts;		/* Descriptor command status		*/
+	u16 buf_size;		/* Buffer size				*/
+	u16 byte_cnt;		/* Descriptor buffer byte count		*/
+	u32 buf_ptr;		/* Descriptor buffer pointer		*/
+	u32 next_desc_ptr;	/* Next descriptor pointer		*/
+};
+
+struct eth_tx_desc {
+	u32 cmd_sts;		/* Command/status field			*/
+	u16 l4i_chk;		/* CPU provided TCP checksum		*/
+	u16 byte_cnt;		/* buffer byte count			*/
+	u32 buf_ptr;		/* pointer to buffer for this descriptor*/
+	u32 next_desc_ptr;	/* Pointer to next descriptor		*/
+};
+#else
+#error One of __BIG_ENDIAN or __LITTLE_ENDIAN must be defined
+#endif
+
+/* Unified struct for Rx and Tx operations. The user is not required to	*/
+/* be familier with neither Tx nor Rx descriptors.			*/
+struct pkt_info {
+	unsigned short byte_cnt;	/* Descriptor buffer byte count	*/
+	unsigned short l4i_chk;		/* Tx CPU provided TCP Checksum	*/
+	unsigned int cmd_sts;		/* Descriptor command status	*/
+	dma_addr_t buf_ptr;		/* Descriptor buffer pointer	*/
+	struct sk_buff *return_info;	/* User resource return information */
+};
+
+/* Ethernet port specific information */
+struct mv643xx_mib_counters {
+	u64 good_octets_received;
+	u32 bad_octets_received;
+	u32 internal_mac_transmit_err;
+	u32 good_frames_received;
+	u32 bad_frames_received;
+	u32 broadcast_frames_received;
+	u32 multicast_frames_received;
+	u32 frames_64_octets;
+	u32 frames_65_to_127_octets;
+	u32 frames_128_to_255_octets;
+	u32 frames_256_to_511_octets;
+	u32 frames_512_to_1023_octets;
+	u32 frames_1024_to_max_octets;
+	u64 good_octets_sent;
+	u32 good_frames_sent;
+	u32 excessive_collision;
+	u32 multicast_frames_sent;
+	u32 broadcast_frames_sent;
+	u32 unrec_mac_control_received;
+	u32 fc_sent;
+	u32 good_fc_received;
+	u32 bad_fc_received;
+	u32 undersize_received;
+	u32 fragments_received;
+	u32 oversize_received;
+	u32 jabber_received;
+	u32 mac_receive_error;
+	u32 bad_crc_event;
+	u32 collision;
+	u32 late_collision;
+};
+
+struct mv643xx_private {
+	int port_num;			/* User Ethernet port number	*/
+
+	u32 rx_sram_addr;		/* Base address of rx sram area */
+	u32 rx_sram_size;		/* Size of rx sram area		*/
+	u32 tx_sram_addr;		/* Base address of tx sram area */
+	u32 tx_sram_size;		/* Size of tx sram area		*/
+
+	int rx_resource_err;		/* Rx ring resource error flag */
+
+	/* Tx/Rx rings managment indexes fields. For driver use */
+
+	/* Next available and first returning Rx resource */
+	int rx_curr_desc_q, rx_used_desc_q;
+
+	/* Next available and first returning Tx resource */
+	int tx_curr_desc_q, tx_used_desc_q;
+
+#ifdef MV643XX_TX_FAST_REFILL
+	u32 tx_clean_threshold;
+#endif
+
+	struct eth_rx_desc *p_rx_desc_area;
+	dma_addr_t rx_desc_dma;
+	int rx_desc_area_size;
+	struct sk_buff **rx_skb;
+
+	struct eth_tx_desc *p_tx_desc_area;
+	dma_addr_t tx_desc_dma;
+	int tx_desc_area_size;
+	struct sk_buff **tx_skb;
+
+	struct work_struct tx_timeout_task;
+
+	struct net_device *dev;
+	struct napi_struct napi;
+	struct net_device_stats stats;
+	struct mv643xx_mib_counters mib_counters;
+	spinlock_t lock;
+	/* Size of Tx Ring per queue */
+	int tx_ring_size;
+	/* Number of tx descriptors in use */
+	int tx_desc_count;
+	/* Size of Rx Ring per queue */
+	int rx_ring_size;
+	/* Number of rx descriptors in use */
+	int rx_desc_count;
+
+	/*
+	 * Used in case RX Ring is empty, which can be caused when
+	 * system does not have resources (skb's)
+	 */
+	struct timer_list timeout;
+
+	u32 rx_int_coal;
+	u32 tx_int_coal;
+	struct mii_if_info mii;
+};
 
 /* Static function declarations */
+static void eth_port_init(struct mv643xx_private *mp);
+static void eth_port_reset(unsigned int eth_port_num);
+static void eth_port_start(struct net_device *dev);
+
+static void ethernet_phy_reset(unsigned int eth_port_num);
+
+static void eth_port_write_smi_reg(unsigned int eth_port_num,
+				   unsigned int phy_reg, unsigned int value);
+
+static void eth_port_read_smi_reg(unsigned int eth_port_num,
+				  unsigned int phy_reg, unsigned int *value);
+
+static void eth_clear_mib_counters(unsigned int eth_port_num);
+
+static ETH_FUNC_RET_STATUS eth_port_receive(struct mv643xx_private *mp,
+					    struct pkt_info *p_pkt_info);
+static ETH_FUNC_RET_STATUS eth_rx_return_buff(struct mv643xx_private *mp,
+					      struct pkt_info *p_pkt_info);
+
 static void eth_port_uc_addr_get(unsigned int port_num, unsigned char *p_addr);
 static void eth_port_uc_addr_set(unsigned int port_num, unsigned char *p_addr);
 static void eth_port_set_multicast_list(struct net_device *);