path: root/drivers/staging/sxg/sxg.h

/**************************************************************************
 *
 * Copyright � 2000-2008 Alacritech, Inc.  All rights reserved.
 *
 * $Id: sxg.h,v 1.3 2008/07/24 17:25:08 chris Exp $
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY ALACRITECH, INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ALACRITECH, 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, WHETHER IN 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.
 *
 * The views and conclusions contained in the software and documentation
 * are those of the authors and should not be interpreted as representing
 * official policies, either expressed or implied, of Alacritech, Inc.
 *
 **************************************************************************/

/*
 * FILENAME: sxg.h
 *
 * This is the base set of header definitions for the SXG driver.
 */
#ifndef __SXG_DRIVER_H__
#define __SXG_DRIVER_H__

#define SLIC_DUMP_ENABLED		0

#define SXG_DRV_NAME	"sxg"		/* TBD: This might be removed eventually */
#define SXG_DRV_VERSION	"1.0.1"

extern char sxg_driver_name[];

#define SXG_NETDEV_WEIGHT 64

/*
 * struct sxg_stats - Probably move these to someplace where
 * the slicstat (sxgstat?) program can get them.
 */
struct sxg_stats {
	/* Xmt */
	u64	DumbXmtUcastPkts;	/* directed packets */
	u64	DumbXmtMcastPkts;	/* Multicast packets */
	u64	DumbXmtBcastPkts;	/* OID_GEN_BROADCAST_FRAMES_RCV */
	u64	DumbXmtUcastBytes;	/* OID_GEN_DIRECTED_BYTES_XMIT */
	u64	DumbXmtMcastBytes;	/* OID_GEN_MULTICAST_BYTES_XMIT */
	u64	DumbXmtBcastBytes;	/* OID_GEN_BROADCAST_BYTES_XMIT */
	u64	XmtQLen;		/* OID_GEN_TRANSMIT_QUEUE_LENGTH */
	u64	XmtZeroFull;		/* Transmit ring zero full */
	/* Rcv */
	u64  	DumbRcvUcastBytes;	/* OID_GEN_DIRECTED_BYTES_RCV */
	u64    	DumbRcvMcastBytes;	/* OID_GEN_MULTICAST_BYTES_RCV */
	u64   	DumbRcvBcastBytes;	/* OID_GEN_BROADCAST_BYTES_RCV */
	u64	DumbRcvUcastPkts;	/* directed packets */
	u64	DumbRcvMcastPkts;	/* Multicast packets */
	u64	DumbRcvBcastPkts;	/* OID_GEN_BROADCAST_FRAMES_RCV */
	u64 	PdqFull;		/* Processed Data Queue Full */
	u64	EventRingFull;		/* Event ring full */
	/* Verbose stats */
	u64	NoSglBuf;		/* SGL buffer allocation failure */
	u64	NoMem;			/* Memory allocation failure */
	u64	NumInts;		/* Interrupts */
	u64	FalseInts;		/* Interrupt with ISR == 0 */
	/* Sahara receive status */
	u64	TransportCsum;		/* SXG_RCV_STATUS_TRANSPORT_CSUM */
	u64	TransportUflow;		/* SXG_RCV_STATUS_TRANSPORT_UFLOW */
	u64	TransportHdrLen;	/* SXG_RCV_STATUS_TRANSPORT_HDRLEN */
	u64	NetworkCsum;		/* SXG_RCV_STATUS_NETWORK_CSUM: */
	u64	NetworkUflow;		/* SXG_RCV_STATUS_NETWORK_UFLOW: */
	u64	NetworkHdrLen;		/* SXG_RCV_STATUS_NETWORK_HDRLEN: */
	u64	Parity;			/* SXG_RCV_STATUS_PARITY */
	u64	LinkParity;		/* SXG_RCV_STATUS_LINK_PARITY: */
	u64	LinkEarly;		/* SXG_RCV_STATUS_LINK_EARLY: */
	u64	LinkBufOflow;		/* SXG_RCV_STATUS_LINK_BUFOFLOW: */
	u64	LinkCode;		/* SXG_RCV_STATUS_LINK_CODE: */
	u64	LinkDribble;		/* SXG_RCV_STATUS_LINK_DRIBBLE: */
	u64	LinkCrc;		/* SXG_RCV_STATUS_LINK_CRC: */
	u64	LinkOflow;		/* SXG_RCV_STATUS_LINK_OFLOW: */
	u64	LinkUflow;		/* SXG_RCV_STATUS_LINK_UFLOW: */
};


/* DUMB-NIC Send path definitions */

#define SXG_COMPLETE_DUMB_SEND(_pAdapt, _skb, _phys_addr, _size) {		\
	ASSERT(_skb);								\
	pci_unmap_single(_pAdapt->pcidev, _size, _phys_addr, PCI_DMA_TODEVICE);	\
	dev_kfree_skb_irq(_skb);                    				\
}

#define SXG_DROP_DUMB_SEND(_pAdapt, _skb) {                            	\
	ASSERT(_skb);							\
}

/*
 * Locate current receive header buffer location.  Use this
 * instead of RcvDataHdr->VirtualAddress since the data
 * may have been offset by SXG_ADVANCE_MDL_OFFSET
 */
#define SXG_RECEIVE_DATA_LOCATION(_RcvDataHdr)        (_RcvDataHdr)->skb->data

/* Dumb-NIC receive processing */
/* Define an SXG_PACKET as an NDIS_PACKET */
#define PSXG_PACKET       struct sk_buff *
/* Indications array size */
#define SXG_RCV_ARRAYSIZE	64

#define SXG_ALLOCATE_RCV_PACKET(_pAdapt, _RcvDataBufferHdr, BufferSize) {\
    struct sk_buff * skb;						\
    skb = netdev_alloc_skb(_pAdapt->netdev, BufferSize);                \
    if (skb) {                                                          \
    	(_RcvDataBufferHdr)->skb = skb;                                	\
        skb->next = NULL;                                               \
	_RcvDataBufferHdr->PhysicalAddress = pci_map_single(adapter->pcidev,\
	    _RcvDataBufferHdr->skb->data, BufferSize, PCI_DMA_FROMDEVICE);	\
	if (SXG_INVALID_SGL(_RcvDataBufferHdr->PhysicalAddress,BufferSize))  \
		printk(KERN_EMERG "SXG_ALLOCATE_RCV_PACKET: RCV packet" \
					"non-64k boundary aligned\n");	\
    } else {                                                            \
    	(_RcvDataBufferHdr)->skb = NULL;                                \
    }                                                                  	\
}

#define SXG_FREE_RCV_PACKET(_RcvDataBufferHdr) {			\
	if((_RcvDataBufferHdr)->skb) {					\
		dev_kfree_skb((_RcvDataBufferHdr)->skb);		\
    }                                                                  	\
}

/*
 * Macro to add a NDIS_PACKET to an indication array
 * If we fill up our array of packet pointers, then indicate this
 * block up now and start on a new one.
 */
#define	SXG_ADD_RCV_PACKET(_pAdapt, _Packet, _PrevPacket, _IndicationList, \
				_NumPackets) { 				\
	(_IndicationList)[_NumPackets] = (_Packet);			\
	(_NumPackets)++;						\
	if((_NumPackets) == SXG_RCV_ARRAYSIZE) {			\
		SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "IndicRcv",	\
				   (_NumPackets), 0, 0, 0);		\
        netif_rx((_IndicationList),(_NumPackets));                     	\
		(_NumPackets) = 0;					\
	}								\
}

#define SXG_INDICATE_PACKETS(_pAdapt, _IndicationList, _NumPackets) {	\
	if(_NumPackets) {						\
		SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "IndicRcv",	\
				   (_NumPackets), 0, 0, 0);		\
        netif_rx((_IndicationList),(_NumPackets));                     	\
		(_NumPackets) = 0;					\
	}								\
}

#define SXG_REINIATIALIZE_PACKET(_Packet)				\
	{}  /*_NdisReinitializePacket(_Packet)*/
		 /*  this is not necessary with an skb */

/* Definitions to initialize Dumb-nic Receive NBLs */
#define SXG_RCV_PACKET_BUFFER_HDR(_Packet) (((struct sxg_rcv_nbl_reserved *)\
			((_Packet)->MiniportReservedEx))->RcvDataBufferHdr)

#define SXG_RCV_SET_CHECKSUM_INFO(_Packet, _Cpi)				\
	NDIS_PER_PACKET_INFO_FROM_PACKET((_Packet), 				\
			TcpIpChecksumPacketInfo) = (PVOID)(_Cpi)

#define SXG_RCV_SET_TOEPLITZ(_Packet, _Toeplitz, _Type, _Function) {		\
	NDIS_PACKET_SET_HASH_VALUE((_Packet), (_Toeplitz));			\
	NDIS_PACKET_SET_HASH_TYPE((_Packet), (_Type));				\
	NDIS_PACKET_SET_HASH_FUNCTION((_Packet), (_Function));			\
}

#define SXG_RCV_SET_VLAN_INFO(_Packet, _VlanId, _Priority) {			\
	NDIS_PACKET_8021Q_INFO	_Packet8021qInfo;				\
	_Packet8021qInfo.TagHeader.VlanId = (_VlanId);				\
	_Packet8021qInfo.TagHeader.UserPriority = (_Priority);			\
	NDIS_PER_PACKET_INFO_FROM_PACKET((_Packet), Ieee8021QNetBufferListInfo) = 	\
		_Packet8021qInfo.Value;						\
}

#define SXG_ADJUST_RCV_PACKET(_Packet, _RcvDataBufferHdr, _Event) {		\
	SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "DumbRcv",		\
			   (_RcvDataBufferHdr), (_Packet),			\
			   (_Event)->Status, 0);	                    	\
	/* ASSERT((_Event)->Length <= (_RcvDataBufferHdr)->Size); */		\
	skb_put(Packet, (_Event)->Length);					\
}

/*
 * Macros to free a receive data buffer and receive data descriptor block
 * NOTE - Lock must be held with RCV macros
 */
#define SXG_GET_RCV_DATA_BUFFER(_pAdapt, _Hdr) {				\
	struct list_entry *_ple;						\
	_Hdr = NULL;								\
	if((_pAdapt)->FreeRcvBufferCount) {					\
		ASSERT(!(IsListEmpty(&(_pAdapt)->FreeRcvBuffers)));		\
		_ple = RemoveHeadList(&(_pAdapt)->FreeRcvBuffers);	    	\
		(_Hdr) = container_of(_ple, struct sxg_rcv_data_buffer_hdr, 	\
						FreeList);	        	\
		(_pAdapt)->FreeRcvBufferCount--;				\
		ASSERT((_Hdr)->State == SXG_BUFFER_FREE);			\
	}									\
}

#define SXG_FREE_RCV_DATA_BUFFER(_pAdapt, _Hdr) {				\
	SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "RtnDHdr",		\
			   (_Hdr), (_pAdapt)->FreeRcvBufferCount,		\
			   (_Hdr)->State, 0/*(_Hdr)->VirtualAddress*/);		\
/*	SXG_RESTORE_MDL_OFFSET(_Hdr);	*/					\
	(_pAdapt)->FreeRcvBufferCount++;					\
	ASSERT(((_pAdapt)->AllRcvBlockCount * SXG_RCV_DESCRIPTORS_PER_BLOCK) 	\
				>= (_pAdapt)->FreeRcvBufferCount); 		\
	ASSERT((_Hdr)->State != SXG_BUFFER_FREE);				\
	(_Hdr)->State = SXG_BUFFER_FREE;					\
	InsertTailList(&(_pAdapt)->FreeRcvBuffers, &((_Hdr)->FreeList));	\
}

#define SXG_FREE_RCV_DESCRIPTOR_BLOCK(_pAdapt, _Hdr) {				\
	ASSERT((_Hdr)->State != SXG_BUFFER_FREE);				\
	(_Hdr)->State = SXG_BUFFER_FREE;					\
	(_pAdapt)->FreeRcvBlockCount++;						\
	ASSERT((_pAdapt)->AllRcvBlockCount >= (_pAdapt)->FreeRcvBlockCount);	\
	InsertTailList(&(_pAdapt)->FreeRcvBlocks, &(_Hdr)->FreeList);		\
}

/* SGL macros */
#define SXG_FREE_SGL_BUFFER(_pAdapt, _Sgl, _NB) {				\
	spin_lock_irqsave(&(_pAdapt)->SglQLock, sgl_flags);			\
	(_pAdapt)->FreeSglBufferCount++;					\
	ASSERT((_pAdapt)->AllSglBufferCount >= (_pAdapt)->FreeSglBufferCount);	\
	ASSERT(!((_Sgl)->State & SXG_BUFFER_FREE));				\
	(_Sgl)->State = SXG_BUFFER_FREE;					\
	InsertTailList(&(_pAdapt)->FreeSglBuffers, &(_Sgl)->FreeList);		\
	spin_unlock_irqrestore(&(_pAdapt)->SglQLock, sgl_flags);		\
}

/*
 * Get an SGL buffer from the free queue.  The first part of this macro
 * attempts to keep ahead of buffer depletion by allocating more when
 * we hit a minimum threshold.  Note that we don't grab the lock
 * until after that.  We're dealing with round numbers here, so we don't need to,
 * and not grabbing it avoids a possible double-trip.
 */
#define SXG_GET_SGL_BUFFER(_pAdapt, _Sgl, _irq) {			\
	struct list_entry *_ple;					\
	if ((_pAdapt->FreeSglBufferCount < SXG_MIN_SGL_BUFFERS) &&	\
	   (_pAdapt->AllSglBufferCount < SXG_MAX_SGL_BUFFERS) &&	\
	   (atomic_read(&_pAdapt->pending_allocations) == 0)) {		\
		sxg_allocate_buffer_memory(_pAdapt,			\
			(sizeof(struct sxg_scatter_gather) + SXG_SGL_BUF_SIZE),\
			SXG_BUFFER_TYPE_SGL);				\
	}								\
	_Sgl = NULL;							\
	if(!_irq)							\
		spin_lock_irqsave(&(_pAdapt)->SglQLock, sgl_flags);	\
	else								\
		spin_lock_irqsave(&(_pAdapt)->SglQLock, sgl_flags);	\
	if((_pAdapt)->FreeSglBufferCount) {				\
		ASSERT(!(IsListEmpty(&(_pAdapt)->FreeSglBuffers)));	\
		_ple = RemoveHeadList(&(_pAdapt)->FreeSglBuffers);	\
		(_Sgl) = container_of(_ple, struct sxg_scatter_gather, 	\
						FreeList); 		\
            (_pAdapt)->FreeSglBufferCount--;				\
		ASSERT((_Sgl)->State == SXG_BUFFER_FREE);		\
		(_Sgl)->State = SXG_BUFFER_BUSY;			\
		(_Sgl)->pSgl = NULL;					\
	}								\
	if(!_irq)							\
		spin_unlock_irqrestore(&(_pAdapt)->SglQLock, sgl_flags);\
	else								\
		spin_unlock_irqrestore(&(_pAdapt)->SglQLock, sgl_flags);\
}

/*
 * struct sxg_multicast_address
 * Linked list of multicast addresses.
 */
struct sxg_multicast_address {
	unsigned char			Address[6];
	struct sxg_multicast_address	*Next;
};

/*
 * Structure to maintain chimney send and receive buffer queues.
 * This structure maintains NET_BUFFER_LIST queues that are
 * given to us via the Chimney MiniportTcpOffloadSend and
 * MiniportTcpOffloadReceive routines.  This structure DOES NOT
 * manage our data buffer queue
 */
struct sxg_buffer_queue {
	u32	Type;			/* Slow or fast - See below */
	u32	Direction;		/* Xmt or Rcv */
	u32	Bytes;			/* Byte count */
	u32 *  	Head;			/* Send queue head */
	u32 *  	Tail;			/* Send queue tail */
/*	PNET_BUFFER_LIST	NextNBL;*/	/* Short cut - next NBL */
/*	PNET_BUFFER		NextNB;	*/	/* Short cut - next NB */
};

#define		SXG_SLOW_SEND_BUFFER	0
#define		SXG_FAST_SEND_BUFFER	1
#define 	SXG_RECEIVE_BUFFER		2

#define SXG_INIT_BUFFER(_Buffer, _Type) { 				\
	(_Buffer)->Type = (_Type);					\
	if((_Type) == SXG_RECEIVE_BUFFER) {				\
		(_Buffer)->Direction = 0;				\
	} else {							\
		(_Buffer)->Direction = NDIS_SG_LIST_WRITE_TO_DEVICE;	\
	}								\
	(_Buffer)->Bytes = 0;						\
	(_Buffer)->Head = NULL;						\
	(_Buffer)->Tail = NULL;						\
}


#define SXG_RSS_CPU_COUNT(_pAdapt) 					\
	((_pAdapt)->RssEnabled 	?  NR_CPUS : 1)

/* DRIVER and ADAPTER structures */

/*
 * Adapter states - These states closely match the adapter states
 * documented in the DDK (with a few exceptions).
 */
enum SXG_STATE {
	SXG_STATE_INITIALIZING,			/* Initializing */
	SXG_STATE_BOOTDIAG,			/* Boot-Diagnostic mode */
	SXG_STATE_PAUSING,			/* Pausing */
	SXG_STATE_PAUSED,			/* Paused */
	SXG_STATE_RUNNING,			/* Running */
	SXG_STATE_RESETTING,			/* Reset in progress */
	SXG_STATE_SLEEP,			/* Sleeping */
	SXG_STATE_DIAG,				/* Diagnostic mode */
	SXG_STATE_HALTING,			/* Halting */
	SXG_STATE_HALTED,			/* Down or not-initialized */
	SXG_STATE_SHUTDOWN			/* shutdown */
};

/* Link state */
enum SXG_LINK_STATE {
	SXG_LINK_DOWN,
	SXG_LINK_UP
};

/* Link initialization timeout in 100us units */
#define SXG_LINK_TIMEOUT	100000		/* 10 Seconds - REDUCE! */


/* Microcode file selection codes */
enum SXG_UCODE_SEL {
	SXG_UCODE_SYSTEM,	/* System (operational) uucode */
	SXG_UCODE_SDIAGCPU,	/* System CPU diagnostic ucode */
	SXG_UCODE_SDIAGSYS	/* System diagnostic ucode */
};


#define SXG_DISABLE_ALL_INTERRUPTS(_padapt) sxg_disable_interrupt(_padapt)
#define SXG_ENABLE_ALL_INTERRUPTS(_padapt) sxg_enable_interrupt(_padapt)

/* This probably lives in a proto.h file.  Move later */
#define SXG_MULTICAST_PACKET(_pether) ((_pether)->ether_dhost[0] & 0x01)
#define SXG_BROADCAST_PACKET(_pether) 					\
		((*(u32 *)(_pether)->ether_dhost == 0xFFFFFFFF) && 	\
		(*(u16 *)&(_pether)->ether_dhost[4] == 0xFFFF))

/* For DbgPrints */
#define SXG_ID      DPFLTR_IHVNETWORK_ID
#define SXG_ERROR   DPFLTR_ERROR_LEVEL

/*
 * struct sxg_driver structure -
 *
 * contains information about the sxg driver.  There is only
 * one of these, and it is defined as a global.
 */

struct sxg_driver {
	struct adapter_t	*Adapters;	/* Linked list of adapters */
	ushort			AdapterID;	/* Maintain unique adapter ID */
};

#ifdef STATUS_SUCCESS
#undef STATUS_SUCCESS
#endif

/* TODO: We need to try and use NETDEV_TX_* before posting this out */
#define STATUS_SUCCESS              0
#define STATUS_PENDING              0
#define STATUS_FAILURE             -1
#define STATUS_ERROR               -2
#define STATUS_NOT_SUPPORTED       -3
#define STATUS_BUFFER_TOO_SHORT    -4
#define STATUS_RESOURCES           -5

#define SLIC_MAX_CARDS              32
#define SLIC_MAX_PORTS              4        /* Max # of ports per card   */
#if SLIC_DUMP_ENABLED

/*
 * Dump buffer size
 * This cannot be bigger than the max DMA size the card supports,
 * given the current code structure in the host and ucode.
 * Mojave supports 16K, Oasis supports 16K-1, so
 * just set this at 15K, shouldnt make that much of a diff.
 */
#define DUMP_BUF_SIZE	0x3C00
#endif

#define MIN(a, b) ((u32)(a) < (u32)(b) ? (a) : (b))
#define MAX(a, b) ((u32)(a) > (u32)(b) ? (a) : (b))

struct mcast_address {
    unsigned char	   address[6];
    struct mcast_address   *next;
};

#define CARD_DOWN        		0x00000000
#define CARD_UP          		0x00000001
#define CARD_FAIL	        	0x00000002
#define CARD_DIAG       		0x00000003
#define CARD_SLEEP       		0x00000004

#define ADAPT_DOWN	             	0x00
#define ADAPT_UP        	       	0x01
#define ADAPT_FAIL             		0x02
#define ADAPT_RESET            		0x03
#define ADAPT_SLEEP            		0x04

#define ADAPT_FLAGS_BOOTTIME            0x0001
#define ADAPT_FLAGS_IS64BIT             0x0002
#define ADAPT_FLAGS_PENDINGLINKDOWN     0x0004
#define ADAPT_FLAGS_FIBERMEDIA          0x0008
#define ADAPT_FLAGS_LOCKS_ALLOCED       0x0010
#define ADAPT_FLAGS_INT_REGISTERED      0x0020
#define ADAPT_FLAGS_LOAD_TIMER_SET      0x0040
#define ADAPT_FLAGS_STATS_TIMER_SET     0x0080
#define ADAPT_FLAGS_RESET_TIMER_SET     0x0100

#define LINK_DOWN			0x00
#define LINK_CONFIG  			0x01
#define LINK_UP    			0x02

#define LINK_10MB    			0x00
#define LINK_100MB         		0x01
#define LINK_AUTOSPEED  		0x02
#define LINK_1000MB        		0x03
#define LINK_10000MB          		0x04

#define LINK_HALFD       		0x00
#define LINK_FULLD     			0x01
#define LINK_AUTOD 			0x02

#define MAC_DIRECTED 			0x00000001
#define MAC_BCAST 			0x00000002
#define MAC_MCAST  			0x00000004
#define MAC_PROMISC  			0x00000008
#define MAC_LOOPBACK   			0x00000010
#define MAC_ALLMCAST  			0x00000020

#define SLIC_DUPLEX(x)    ((x==LINK_FULLD) ? "FDX" : "HDX")
#define SLIC_SPEED(x)     ((x==LINK_100MB) ? "100Mb" : 			\
				((x==LINK_1000MB) ? "1000Mb" : " 10Mb"))
#define SLIC_LINKSTATE(x) ((x==LINK_DOWN) ? "Down" : "Up  ")
#define SLIC_ADAPTER_STATE(x) ((x==ADAPT_UP) ? "UP" : "Down")
#define SLIC_CARD_STATE(x)    ((x==CARD_UP) ? "UP" : "Down")


struct ether_header {
    unsigned char    ether_dhost[6];
    unsigned char    ether_shost[6];
    ushort   ether_type;
};


#define NUM_CFG_SPACES      2
#define NUM_CFG_REGS        64

/*
 * We split LSS sends across four microcode queues derived from
 * destination TCP port (if TCP/IP).
 */
#define SXG_LARGE_SEND_QUEUE_MASK    0x3
#define ISCSI_PORT 	             0xbc0c                  /* 3260 */

struct physcard {
    struct adapter_t		*adapter[SLIC_MAX_PORTS];
    struct physcard		*next;
    unsigned int                adapters_allocd;
};

struct sxgbase_driver {
	spinlock_t	driver_lock;
	unsigned long	flags;	/* irqsave for spinlock */
	u32		num_sxg_cards;
	u32		num_sxg_ports;
	u32		num_sxg_ports_active;
	u32		dynamic_intagg;
	struct physcard	*phys_card;
};


struct adapter_t {
	void *               ifp;
	unsigned int                port;
	struct napi_struct 	napi;
	struct physcard        *physcard;
	unsigned int                physport;
	unsigned int                slotnumber;
	unsigned int                functionnumber;
	ushort              vendid;
	ushort              devid;
	ushort              subsysid;
	u32             irq;

	void __iomem *	base_addr;
	u32             memorylength;
	u32             drambase;
	u32             dramlength;
	enum asic_type	asictype;      /* type of ASIC (chip) */
	unsigned int                activated;
	u32             intrregistered;
	unsigned int                isp_initialized;
	unsigned char               state;
	unsigned char               linkstate;
	unsigned int                flags;
	unsigned char               macaddr[6];
	unsigned char               currmacaddr[6];
	u32             macopts;
	ushort              devflags_prev;
	u64             mcastmask;
	struct mcast_address   *mcastaddrs;
	struct timer_list   pingtimer;
	u32             pingtimerset;
	struct timer_list   statstimer;
	u32             statstimerset;
	struct timer_list   vpci_timer;
	u32             vpci_timerset;
	struct timer_list   loadtimer;
	u32             loadtimerset;

	u32             xmitq_full;
	u32             all_reg_writes;
	u32             icr_reg_writes;
	u32             isr_reg_writes;
	u32             error_interrupts;
	u32             error_rmiss_interrupts;
	u32             rx_errors;
	u32             rcv_drops;
	u32             rcv_interrupts;
	u32             xmit_interrupts;
	u32             linkevent_interrupts;
	u32             upr_interrupts;
	u32             num_isrs;
	u32             false_interrupts;
	u32             tx_packets;
	u32             xmit_completes;
	u32             tx_drops;
	u32             rcv_broadcasts;
	u32             rcv_multicasts;
	u32             rcv_unicasts;
	u32             max_isr_rcvs;
	u32             max_isr_xmits;
	u32             rcv_interrupt_yields;
	u32             intagg_period;
	struct net_device_stats stats;
	u32 *			MiniportHandle;		/* Our miniport handle */
	enum SXG_STATE 		State;			/* Adapter state */
	enum SXG_LINK_STATE 	LinkState;		/* Link state */
	u64			LinkSpeed;		/* Link Speed */
	u32			PowerState;		/* NDIS power state */
	struct adapter_t  	*Next;			/* Linked list */
	ushort			AdapterID;		/* 1..n */
	struct net_device *         netdev;
	struct net_device *         next_netdevice;
	struct pci_dev            *pcidev;

	struct sxg_multicast_address	*MulticastAddrs; /* Multicast list */
	u64     		MulticastMask;		/* Multicast mask */
	u32 			*InterruptHandle;	/* Register Interrupt handle */
	u32			InterruptLevel;		/* From Resource list */
	u32			InterruptVector;	/* From Resource list */
	spinlock_t		AdapterLock;	/* Serialize access adapter routines */
	spinlock_t		Bit64RegLock;	/* For writing 64-bit addresses */
	struct sxg_hw_regs	*HwRegs;	/* Sahara HW Register Memory (BAR0/1) */
	struct sxg_ucode_regs	*UcodeRegs;	/* Microcode Register Memory (BAR2/3) */
	struct sxg_tcb_regs	*TcbRegs;	/* Same as Ucode regs - See sxghw.h */
	ushort         	FrameSize;	/* Maximum frame size */
	u32 *		DmaHandle;	/* NDIS DMA handle */
	u32 *		PacketPoolHandle;	/* Used with NDIS 5.2 only.  Don't ifdef out */
	u32 *		BufferPoolHandle;	/* Used with NDIS 5.2 only.  Don't ifdef out */
	u32		MacFilter;		/* NDIS MAC Filter */
	struct sxg_event_ring	*EventRings;	/* Host event rings.  1/CPU to 16 max */
	dma_addr_t             	PEventRings;	/* Physical address */
	u32		NextEvent[SXG_MAX_RSS];	/* Current location in ring */
	dma_addr_t     	PTcbBuffers;		/* TCB Buffers - physical address */
	dma_addr_t	PTcbCompBuffers;	/* TCB Composite Buffers - phys addr */
	struct sxg_xmt_ring	*XmtRings;	/* Transmit rings */
	dma_addr_t		PXmtRings;	/* Transmit rings - physical address */
	struct sxg_ring_info	XmtRingZeroInfo;	/* Transmit ring 0 info */

	spinlock_t	XmtZeroLock;	/* Transmit ring 0 lock */
	u32 *		XmtRingZeroIndex;	/* Shared XMT ring 0 index */
	dma_addr_t     	PXmtRingZeroIndex;	/* Shared XMT ring 0 index - physical */
	struct list_entry	FreeProtocolHeaders;/* Free protocol headers */
	u32		FreeProtoHdrCount;	/* Count */
	void *		ProtocolHeaders;	/* Block of protocol header */
	dma_addr_t	PProtocolHeaders;	/* Block of protocol headers - phys */

	struct sxg_rcv_ring	*RcvRings;	/* Receive rings */
	dma_addr_t	PRcvRings;		/* Receive rings - physical address */
	struct sxg_ucode_stats	*ucode_stats;		/* Ucode Stats  */
	/* Ucode Stats - physical address */
	dma_addr_t	        pucode_stats;

	struct sxg_ring_info	RcvRingZeroInfo;	/* Receive ring 0 info */

	u32 *		Isr;		/* Interrupt status register */
	dma_addr_t	PIsr;		/* ISR - physical address */
	u32		IsrCopy[SXG_MAX_RSS];	/* Copy of ISR */
	ushort		InterruptsEnabled;	/* Bitmask of enabled vectors */
	unsigned char 	*IndirectionTable;	/* RSS indirection table */
	dma_addr_t	PIndirectionTable;	/* Physical address */
	ushort		RssTableSize;		/* From NDIS_RECEIVE_SCALE_PARAMETERS */
	ushort		HashKeySize;		/* From NDIS_RECEIVE_SCALE_PARAMETERS */
	unsigned char	HashSecretKey[40];	/* rss key */
	u32		HashInformation;
	/* Receive buffer queues */
	spinlock_t      RcvQLock;       	/* Receive Queue Lock */
	struct list_entry	FreeRcvBuffers;		/* Free SXG_DATA_BUFFER queue */
	struct list_entry	FreeRcvBlocks;		/* Free SXG_RCV_DESCRIPTOR_BLOCK Q */
	struct list_entry	AllRcvBlocks;		/* All SXG_RCV_BLOCKs */
	ushort		FreeRcvBufferCount;	/* Number of free rcv data buffers */
	ushort		FreeRcvBlockCount;	/* # of free rcv descriptor blocks */
	ushort		AllRcvBlockCount;	/* Number of total receive blocks */
	ushort		ReceiveBufferSize;	/* SXG_RCV_DATA/JUMBO_BUFFER_SIZE only */
	/* Converted this to a atomic variable
	u32			AllocationsPending;	*/
	atomic_t		pending_allocations;
	u32		AllocationsPending;	/* Receive allocation pending */
	u32		RcvBuffersOnCard;	/* SXG_DATA_BUFFERS owned by card */
	/* SGL buffers */
	spinlock_t	SglQLock;	/* SGL Queue Lock */
	struct list_entry	FreeSglBuffers;		/* Free struct sxg_scatter_gather */
	struct list_entry	AllSglBuffers;		/* All struct sxg_scatter_gather */
	ushort		FreeSglBufferCount;	/* Number of free SGL buffers */
	ushort		AllSglBufferCount;	/* Number of total SGL buffers */
	u32		CurrentTime;		/* Tick count */
	u32		FastpathConnections;/* # of fastpath connections */
	/* Various single-bit flags: */
	u32		BasicAllocations:1;	/* Locks and listheads */
	u32		IntRegistered:1;	/* Interrupt registered */
	u32		PingOutstanding:1;	/* Ping outstanding to card */
	u32		Dead:1;				/* Card dead */
	u32		DumpDriver:1;		/* OID_SLIC_DRIVER_DUMP request */
	u32		DumpCard:1;			/* OID_SLIC_CARD_DUMP request */
	u32		DumpCmdRunning:1;	/* Dump command in progress */
	u32		DebugRunning:1;		/* AGDB debug in progress */
	u32		JumboEnabled:1;		/* Jumbo frames enabled */
	u32		msi_enabled:1;		/* MSI interrupt enabled */
	u32		RssEnabled:1;		/* RSS Enabled */
	u32		FailOnBadEeprom:1;	/* Fail on Bad Eeprom */
	u32		DiagStart:1;		/* Init adapter for diagnostic start */
 	u32 		XmtFcEnabled:1;
 	u32 		RcvFcEnabled:1;
	/* Stats */
	u32		PendingRcvCount;	/* Outstanding rcv indications */
	u32		PendingXmtCount;	/* Outstanding send requests */
	struct sxg_stats	Stats;				/* Statistics */
	u32		ReassBufs;			/* Number of reassembly buffers */
	/* Card Crash Info */
	ushort		CrashLocation;		/* Microcode crash location */
	unsigned char	CrashCpu;			/* Sahara CPU ID */
	/* Diagnostics */
	/*	PDIAG_CMD	DiagCmds; */			/* List of free diagnostic commands */
	/*	PDIAG_BUFFER	DiagBuffers; */		/* List of free diagnostic buffers */
	/*	PDIAG_REQ	DiagReqQ; */			/* List of outstanding (asynchronous) diag requests */
	/*	u32		DiagCmdTimeout; */		/* Time out for diag cmds (seconds) XXXTODO - replace with SXG_PARAM var? */
	/*	unsigned char	DiagDmaDesc[DMA_CPU_CTXS]; */		/* Free DMA descriptors bit field (32 CPU ctx * 8 DMA ctx) */
	/*
	 * Put preprocessor-conditional fields at the end so we don't
	 * have to recompile sxgdbg everytime we reconfigure the driver
	 */
#if defined(CONFIG_X86)
	u32		AddrUpper;			/* Upper 32 bits of 64-bit register */
#endif
	unsigned short max_aggregation;
	unsigned short min_aggregation;
	/*#if SXG_FAILURE_DUMP */
	/*	NDIS_EVENT	DumpThreadEvent; */	/* syncronize dump thread */
	/*	BOOLEAN		DumpThreadRunning; */	/* termination flag */
	/*	PSXG_DUMP_CMD	DumpBuffer; */			/* 68k - Cmd and Buffer */
	/*	dma_addr_t	PDumpBuffer; */		/* Physical address */
	/*#endif */ /* SXG_FAILURE_DUMP */
	/*MSI-X related data elements*/
	u32 nr_msix_entries;
	struct msix_entry *msi_entries;
	struct timer_list watchdog_timer;
	struct work_struct update_link_status;
	u32 	link_status_changed;
};

#if SLIC_DUMP_ENABLED
#define SLIC_DUMP_REQUESTED      1
#define SLIC_DUMP_IN_PROGRESS    2
#define SLIC_DUMP_DONE           3

/*
 * Microcode crash information structure.  This
 * structure is written out to the card's SRAM when the microcode panic's.
 */
struct slic_crash_info {
    ushort  cpu_id;
    ushort  crash_pc;
};

#define CRASH_INFO_OFFSET   0x155C

#endif

#define UPDATE_STATS(largestat, newstat, oldstat)                        \
{                                                                        \
    if ((newstat) < (oldstat))                                           \
        (largestat) += ((newstat) + (0xFFFFFFFF - oldstat + 1));         \
    else                                                                 \
        (largestat) += ((newstat) - (oldstat));                          \
}

#define UPDATE_STATS_GB(largestat, newstat, oldstat)                     \
{                                                                        \
    (largestat) += ((newstat) - (oldstat));                              \
}

#define ETHER_EQ_ADDR(_AddrA, _AddrB, _Result)                          \
{                                                                       \
    _Result = TRUE;                                                     \
    if (*(u32 *)(_AddrA) != *(u32 *)(_AddrB))                      	\
        _Result = FALSE;                                                \
    if (*(u16 *)(&((_AddrA)[4])) != *(u16 *)(&((_AddrB)[4])))        	\
        _Result = FALSE;                                                \
}

#define ETHERMAXFRAME   1514
#define JUMBOMAXFRAME   9014

#define SXG_JUMBO_MTU 9000
#define SXG_DEFAULT_MTU 1500

#if defined(CONFIG_X86_64) || defined(CONFIG_IA64)
#define   SXG_GET_ADDR_LOW(_addr)  (u32)((u64)(_addr) & 0x00000000FFFFFFFF)
#define   SXG_GET_ADDR_HIGH(_addr)  					\
			(u32)(((u64)(_addr) >> 32) & 0x00000000FFFFFFFF)
#else
#define   SXG_GET_ADDR_LOW(_addr)   (u32)_addr
#define   SXG_GET_ADDR_HIGH(_addr)  (u32)0
#endif

#define FLUSH       TRUE
#define DONT_FLUSH  FALSE

#define SIOCSLICDUMPCARD         (SIOCDEVPRIVATE+9)
#define SIOCSLICSETINTAGG        (SIOCDEVPRIVATE+10)
#define SIOCSLICTRACEDUMP        (SIOCDEVPRIVATE+11)

extern struct ethtool_ops sxg_nic_ethtool_ops;
#define SXG_COMPLETE_SLOW_SEND_LIMIT	128
#endif /*  __SXG_DRIVER_H__ */