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C/C++ Source or Header | 1992-12-19 | 29.0 KB | 861 lines

/* * netIEInt.h -- * * External definitions for the Intel on-board Ethernet controller. See * the Intel "LAN Components User's Manual" from 1984 for a * description of the definitions here. One note is that the Intel chip * is wired in byte swapped order. Therefore all definitions in here are * byte swapped from the ones in the user's manual. * * Copyright 1985, 1988 Regents of the University of California * Permission to use, copy, modify, and distribute this * software and its documentation for any purpose and without * fee is hereby granted, provided that the above copyright * notice appear in all copies. The University of California * makes no representations about the suitability of this * software for any purpose. It is provided "as is" without * express or implied warranty. * * * $Header: /cdrom/src/kernel/Cvsroot/kernel/net/sun4.md/netIEInt.h,v 9.7 91/09/10 18:41:07 rab Exp $ SPRITE (Berkeley) */ #ifndef _NETIEINT #define _NETIEINT #include <netInt.h> /* * Defined constants: * * NET_IE_CONTROL_REG_ADDR The address of the control register for the * ethernet chip. * NET_IE_SYS_CONF_PTR_ADDR Place where the system configuration pointer * must start. * NET_IE_DELAY_CONST Number of loops to poll the ethernet chip * before giving up. (see NET_IE_DELAY()) * NET_IE_CHUNK_SIZE The number of bytes that memory is allocated * in. * NET_IE_MEM_SIZE Amount of memory to set aside for the control * blocks. * NET_IE_NUM_RECV_BUFFERS The number of buffers that we have to receive * packets in. * NET_IE_NUM_XMIT_BUFFERS The number of buffer descriptors that are used * for a transmitted packet. * NET_IE_RECV_BUFFER_SIZE The size of each receive buffer. * NET_IE_MIN_DMA_SIZE The smallest buffer that can be use for DMA. * If a piece of a message is smaller than this * then it gets copied to other storage and * made the minimum size. * NET_IE_NULL_RECV_BUFF_DESC The value that is used by the controller to * indicate that a header points to no data. * NET_IE_NUM_XMIT_ELEMENTS The number of elements to preallocate for the * retransmission queue. */ #ifdef sun3 #define NET_IE_CONTROL_REG_ADDR 0xfe0c000 #define NET_IE_SYS_CONF_PTR_ADDR 0xffffff6 #define NET_IE_DELAY_CONST 400000 #endif /* sun3 */ #ifdef sun2 #define NET_IE_CONTROL_REG_ADDR 0xee3000 #define NET_IE_SYS_CONF_PTR_ADDR 0xfffff6 #define NET_IE_DELAY_CONST (400000>>2) #endif /* sun2 */ #ifdef sun4 #define NET_IE_CONTROL_REG_ADDR 0xffd0c000 #define NET_IE_SYS_CONF_PTR_ADDR 0xfffffff4 #define NET_IE_DELAY_CONST (400000<<2) #endif /* sun4 */ #define NET_IE_CHUNK_SIZE 32 #define NET_IE_MEM_SIZE 3072 #ifdef sun4 #define NET_IE_NUM_RECV_BUFFERS 32 #else #define NET_IE_NUM_RECV_BUFFERS 18 #endif #define NET_IE_NUM_XMIT_BUFFERS 20 #define NET_IE_RECV_BUFFER_SIZE NET_ETHER_MAX_BYTES #define NET_IE_MIN_DMA_SIZE 12 #define NET_IE_NULL_RECV_BUFF_DESC 0xffff #define NET_IE_NUM_XMIT_ELEMENTS 32 /* * Macros to manipulate the chip. * * NET_IE_CHIP_RESET Reset the chip. * NET_IE_CHANNEL_ATTENTION Get the attention of the chip. * NET_IE_DELAY Delay until the microsecond limit is up or * until the condition is true. * NET_IE_CHECK_SCB_CMD_ACCEPT Check to see if the command has been accepted. * NET_IE_ADDR_FROM_SUN_ADDR Change a SUN address to an intel address. * NET_IE_ADDR_TO_SUN_ADDR Change an intel address to a SUN address. */ #define NET_IE_CHIP_RESET(statePtr) \ (*(volatile char *) statePtr->controlReg = 0) #define NET_IE_CHANNEL_ATTENTION(statePtr) \ { \ NetBfByteSet(statePtr->controlReg, ChannelAttn, 1); \ NetBfByteSet(statePtr->controlReg, ChannelAttn, 0); \ } #define NET_IE_DELAY(condition) \ { \ register int i = (NET_IE_DELAY_CONST); \ while (i > 0 && !(condition)) { \ i--; \ } \ if (!(condition)) { \ printf("Delay %s:%d failed.\n", __FILE__, __LINE__); \ } \ } #define NET_IE_CHECK_SCB_CMD_ACCEPT(scbPtr) \ if (*(short *) &(scbPtr->cmdWord) != 0) { \ NetIECheckSCBCmdAccept(scbPtr); \ } #define NET_IE_ADDR_FROM_SUN_ADDR(src, dest) { \ union { \ int i; \ char ch[4]; \ } addrTo, addrFrom; \ addrFrom.i = src; \ addrTo.ch[0] = addrFrom.ch[3]; \ addrTo.ch[1] = addrFrom.ch[2]; \ addrTo.ch[2] = addrFrom.ch[1]; \ addrTo.ch[3] = 0; \ dest = addrTo.i; \ } #define NET_IE_ADDR_TO_SUN_ADDR(src, dest) { \ union { \ int i; \ char ch[4]; \ } addrTo, addrFrom; \ addrFrom.i = src; \ addrTo.ch[0] = 0; \ addrTo.ch[1] = addrFrom.ch[2]; \ addrTo.ch[2] = addrFrom.ch[1]; \ addrTo.ch[3] = addrFrom.ch[0]; \ dest = addrTo.i; \ } /* * System configuration pointer. Must be at 0xfffff6 in chip's address space. */ typedef struct { #ifdef sun4 short padding; /* Since structures can't start on a half-word boundry * on the sun4, we start the structure on a word * boundry and include 2 bytes of padding. */ #endif /* sun4 */ char busWidth; /* Bus width. 0 => 16 bits. 1 => 8 bits. */ char filler[5]; /* Unused. */ int intSysConfPtr; /* Address of intermediate system configuration pointer. */ } NetIESysConfPtr; /* * Intermediate system configuration pointer. This specifies the base of the * control blocks and the offset of the System Control Block (SCB). */ typedef struct { char busy; /* 1 if initialization in progress. */ char filler; /* Unused. */ short scbOffset; /* Offset of the scb. */ int base; /* Base of all control blocks. */ } NetIEIntSysConfPtr; /* * The system control block (SCB) status has the following format: * *typedef struct { * unsigned int :1; Must be zero * unsigned int recvUnitStatus :3; Receive unit status * unsigned int :4; Must be zero * unsigned int cmdDone :1; A command which has its interrupt * bit set completed. * unsigned int frameRecvd :1; A frame received interrupt has been * given. * unsigned int cmdUnitNotActive :1; The command unit has left the active * state. * unsigned int recvUnitNotReady :1; The command unit has left the ready state. * unsigned int :1; Must be zero. * unsigned int cmdUnitStatus :3; Command unit status. *} NetIESCBStatus; */ typedef unsigned short NetIESCBStatus[1]; #define RecvUnitStatus 0x0103 #define CmdDone 0x0801 #define FrameRecvd 0x0901 #define CmdUnitNotActive 0x0a01 #define RecvUnitNotReady 0x0b01 #define CmdUnitStatus 0x0d03 /* * The system control block (SCB) command word has the following format: * * typedef struct { * unsigned int reset :1; Reset the chip. * unsigned int recvUnitCmd :3; The command for the receive unit * unsigned int :4; Unused. * * unsigned int ackCmdDone :1; Ack the command completed bit in * the status word. * unsigned int ackFrameRecvd :1; Ack the frame received bit in the * the status word. * unsigned int ackCmdUnitNotActive:1; Ack that the command unit became * not active. * unsigned int ackRecvUnitNotReady:1; Ack that the receive unit became * not ready * unsigned int :1; Unused. * unsigned int cmdUnitCmd :3; The command for the command unit *} NetIESCBCommand; */ typedef unsigned short NetIESCBCommand[1]; #define Reset 0x0001 #define RecvUnitCmd 0x0103 #define AckCmdDone 0x0801 #define AckFrameRecvd 0x0901 #define AckCmdUnitNotActive 0x0a01 #define AckRecvUnitNotReady 0x0b01 #define CmdUnitCmd 0x0d03 /* * Define the macros to Check and acknowledge the status of the chip. * * NET_IE_CHECK_STATUS Extract the 4 status bits out of the scb status word. * NET_IE_ACK Set the bits in the scb command word that acknowledge * the status bits in the scb status word. * NET_IE_TRANSMITTED Return true if a transit command finished. * NET_IE_RECEIVED Return true if a packet was received. */ #ifndef lint #define NET_IE_CHECK_STATUS(scbStatus) ((*(short *) &(scbStatus)) & 0xF0) #else #define NET_IE_CHECK_STATUS(scbStatus) 0 #endif #define NET_IE_ACK(scbCommand, status) ((*(short *) &(scbCommand)) |= status) #define NET_IE_TRANSMITTED(status) (status & 0xA0) #define NET_IE_RECEIVED(status) (status & 0x50) /* * The system control block. */ typedef struct { NetIESCBStatus statusWord; NetIESCBCommand cmdWord; short cmdListOffset; short recvFrameAreaOffset; short crcErrors; /* Count of crc errors. */ short alignErrors; /* Count of alignment errors. */ short resourceErrors; /* Count of correct incoming packets discarded because of lack of buffer space */ short overrunErrors; /* Count of overrun packets */ } NetIESCB; /* * Values for that status of the receive unit (recvUnitStatus). */ #define NET_IE_RUS_IDLE 0 #define NET_IE_RUS_SUSPENDED 1 #define NET_IE_RUS_NO_RESOURCES 2 #define NET_IE_RUS_READY 4 /* * Values for that status of the command unit (cmdUnitStatus). */ #define NET_IE_CUS_IDLE 0 #define NET_IE_CUS_SUSPENDED 1 #define NET_IE_CUS_ACTIVE 2 /* * Values for the command unit command (cmdUnitCommand). */ #define NET_IE_CUC_NOP 0 #define NET_IE_CUC_START 1 #define NET_IE_CUC_RESUME 2 #define NET_IE_CUC_SUSPEND 3 #define NET_IE_CUC_ABORT 4 /* * Values for the receive unit command (recvUnitCommand). */ #define NET_IE_RUC_NOP 0 #define NET_IE_RUC_START 1 #define NET_IE_RUC_RESUME 2 #define NET_IE_RUC_SUSPEND 3 #define NET_IE_RUC_ABORT 4 /* * Generic command block */ /* * The NetIECommandBlock has the following format: * * typedef struct { * unsigned int :8; Low order bits of status. * unsigned int cmdDone :1; Command done. * unsigned int cmdBusy :1; Command busy. * unsigned int cmdOK :1; Command completed successfully. * unsigned int cmdAborted :1; The command aborted. * unsigned int :4; High order bits of status. * unsigned int :5; Unused. * unsigned int cmdNumber :3; Command number. * unsigned int endOfList :1; The end of the command list. * unsigned int suspend :1; Suspend when command completes. * unsigned int interrupt :1; Interrupt when the command * completes. * unsigned int :5; Unused. * short nextCmdBlock; The offset of the next command * block. *} NetIECommandBlock; */ typedef struct { unsigned short bits[2]; /* Control bits. See below. */ short nextCmdBlock; /* The offset of the next command block. */ } NetIECommandBlock; #define CmdDone 0x0801 #define CmdBusy 0x0901 #define CmdOK 0x0a01 #define CmdAborted 0x0b01 #define CmdNumber 0x1503 #define EndOfList 0x1801 #define Suspend 0x1901 #define Interrupt 0x1a01 /* * Command block commands. */ #define NET_IE_NOP 0 #define NET_IE_IA_SETUP 1 #define NET_IE_CONFIG 2 #define NET_IE_MC_SETUP 3 #define NET_IE_TRANSMIT 4 #define NET_IE_TDR 5 #define NET_IE_DUMP 6 #define NET_IE_DIAGNOSE 7 /* * The nop command block. */ typedef struct { NetIECommandBlock cmdBlock; } NetIENOPCB; /* * The individual address setup command block. */ typedef struct { NetIECommandBlock cmdBlock; /* The command block. */ Net_EtherAddress etherAddress; /* The ethernet address. */ } NetIEIASetupCB; /* * The multicast address setup command block. */ typedef struct { NetIECommandBlock cmdBlock; /* The command block. */ short count; /* Number of ethernet addresses. */ Net_EtherAddress etherAddress; /* The ethernet address. */ } NetIEMASetupCB; /* * The bits of the configure command block have the following format: * * typedef struct { * NetIECommandBlock cmdBlock; The command block. * * unsigned int :4; Unused. * unsigned int byteCount :4; Number of configuration bytes. * * unsigned int :4; Number of configuration bytes. * unsigned int fifoLimit :4; The fifo limit. * * unsigned int saveBadFrames :1; Save bad frames. * unsigned int srdyArdy :1; srdy/ardy. * unsigned int :6; Unused. * * unsigned int excLoopback :1; External loop back. * unsigned int intLoopback :1; Internal loop back. * unsigned int preamble :2; Preamble length code. * unsigned int atLoc :1; Address and type fields are part * unsigned int addrLen :3; The number of address bytes. * * unsigned int backOff :1; Backoff method. * unsigned int expPrio :3; Exponential priority. * unsigned int :1; Unused. * unsigned int linPrio :3; Linear priority. * * unsigned int interFrameSpace:8; Interframe spacing. * * unsigned int slotTimeLow :8; Low bits of slot time. * * unsigned int numRetries :4; Number of transmit retries. * unsigned int :1; Unused. * unsigned int slotTimeHigh :3; High bits of the slot time. * * unsigned int pad :1; Padding. * unsigned int bitStuff :1; Hdlc bit stuffing. * unsigned int crc16 :1; CRC 16 bits or 32. * unsigned int noCrcInsert :1; No crc insertion. * unsigned int xmitOnNoCarr :1; Transmit even if no carrier sense. * unsigned int manch :1; Manchester or NRZ encoding. * unsigned int noBroadcast :1; Disable broadcasts. * unsigned int promisc :1; Promiscuous mode. * * unsigned int collDetectSrc :1; Collision detect source. * unsigned int cdFilter :3; Collision detect filter bits. * unsigned int carrSenseSrc :1; Carrier sense source. * unsigned int carrSenseFilter:3; * * unsigned int minFrameLength:8; Minimum frame length. * * unsigned int :8; Unused. *} NetIEConfigureCB; */ typedef struct { NetIECommandBlock cmdBlock; /* The command block. */ unsigned short bits[6]; } NetIEConfigureCB; #define ByteCount 0x0404 #define FifoLimit 0x0c04 #define SaveBadFrames 0x1001 #define SrdyArdy 0x1101 #define ExcLoopback 0x1801 #define IntLoopback 0x1901 #define Preamble 0x1a02 #define AtLoc 0x1c01 #define AddrLen 0x1d03 #define BackOff 0x2001 #define ExpPrio 0x2103 #define LinPrio 0x2503 #define InterFrameSpace 0x2808 #define SlotTimeLow 0x3008 #define NumRetries 0x3804 #define SlotTimeHigh 0x3d03 #define Pad 0x4001 #define BitStuff 0x4101 #define Crc16 0x4201 #define NoCrcInsert 0x4301 #define XmitOnNoCarr 0x4401 #define Manch 0x4501 #define NoBroadcast 0x4601 #define Promisc 0x4701 #define CollDetectSrc 0x4801 #define CdFilter 0x4903 #define CarrSenseSrc 0x4c01 #define CarrSenseFilter 0x4d03 #define MinFrameLength 0x5008 /* * Transmit command block. */ typedef struct { unsigned int bits[1]; /* See below. */ short nextCmdBlock; /* The offset of the next command block */ short bufDescOffset; /* The offset of the buffer descriptor */ Net_EtherAddress destEtherAddr; /* The ethernet address of the destination machine. */ short type; /* Ethernet packet type field. */ } NetIETransmitCB; /* * The transmit command block has the following format: * * typedef struct { * unsigned int xmitDeferred :1; Transmission deferred. * unsigned int heartBeat :1; Heart beat. * unsigned int tooManyCollisions:1; Too many transmit collisions. * unsigned int :1; Unused. * unsigned int numCollisions :4; The number of collisions * experienced * unsigned int cmdDone :1; Command done. * unsigned int cmdBusy :1; Command busy. * unsigned int cmdOK :1; Command completed successfully. * unsigned int cmdAborted :1; The command aborted. * unsigned int :1; Unused. * unsigned int noCarrSense :1; No carrier sense. * unsigned int noClearToSend :1; Transmission unsuccessful because * of loss of clear to send signal. * unsigned int underRun :1; DMA underrun. * * unsigned int :5; Unused. * unsigned int cmdNumber :3; Command number. * * unsigned int endOfList :1; The end of the command list. * unsigned int suspend :1; Suspend when command completes. * unsigned int interrupt :1; Interrupt when the command * unsigned int :5; Unused. * * short nextCmdBlock; The offset of the next command * block * short bufDescOffset; The offset of the buffer descriptor * Net_EtherAddress destEtherAddr; The ethernet address of the * destination machine. * short type; Ethernet packet type field. *} NetIETransmitCB; */ #define XmitDeferred 0x0001 #define HeartBeat 0x0101 #define TooManyCollisions 0x0201 #define NumCollisions 0x0404 #define CmdDone 0x0801 #define CmdBusy 0x0901 #define CmdOK 0x0a01 #define CmdAborted 0x0b01 #define NoCarrSense 0x0d01 #define NoClearToSend 0x0e01 #define UnderRun 0x0f01 #define CmdNumber 0x1503 #define EndOfList 0x1801 #define Suspend 0x1901 #define Interrupt 0x1a01 /* * The transmit buffer descriptor. */ typedef struct { unsigned short bits[1]; /* See below. */ short nextTBD; /* Offset of the next transmit buffer descriptor. */ int bufAddr; /* Address of buffer of data. */ } NetIETransmitBufDesc; /* * The transmit buffer descriptor has the following format: * * typedef struct { * unsigned int countLow :8; Low order 8 bits of count of bytes * unsigned int eof :1; Last buffer in the packet. * unsigned int :1; Unused. * unsigned int countHigh :6; High order 6 bits of the count. * * short nextTBD; Offset of the next transmit * buffer descriptor. * int bufAddr; Address of buffer of data. *} NetIETransmitBufDesc; */ #define CountLow 0x0008 #define Eof 0x0801 #define CountHigh 0x0a06 /* * The receive frame descriptor. */ typedef struct NetIERecvFrameDesc { unsigned int bits[1]; /* See below. */ short nextRFD; /* Next receive frame descriptor. */ short recvBufferDesc; /* Offset of the first receive buffer descriptor. */ Net_EtherAddress destAddr; /* Destination ethernet address. */ Net_EtherAddress srcAddr; /* Source ethernet address. */ short type; /* Ethernet packet type. */ volatile struct NetIERecvFrameDesc *realNextRFD; /* The SUN address of the next receive frame descriptor. */ } NetIERecvFrameDesc; /* * The receive frame descriptor has the following format: * * typedef struct NetIERecvFrameDesc { * unsigned int shortFrame :1; Was a short frame. * unsigned int noEOF :1; No EOF (bitstuffing mode only). * unsigned int :6; Unused. * * unsigned int done :1; Frame completely stored. * unsigned int busy :1; Busy storing frame. * unsigned int ok :1; Frame received OK * unsigned int :1; Unused. * unsigned int crcError :1; Received packet had a crc error * unsigned int alignError :1; Received packet had an alignment * * error * unsigned int outOfBufs :1; Receive unit ran out of memory * unsigned int overrun :1; DMA overrun. * * unsigned int :8; Unused. * * unsigned int endOfList :1; End of list. * unsigned int suspend :1; Suspend when done receiving. * unsigned int :6; Unused. * * short nextRFD; Next receive frame descriptor. * short recvBufferDesc; Offset of the first receive buffer * descriptor. * * Net_EtherAddress destAddr; Destination ethernet address. * Net_EtherAddress srcAddr; Source ethernet address. * short type; Ethernet packet type. * volatile struct NetIERecvFrameDesc *realNextRFD; The SUN address of * the next receive frame descriptor. *} NetIERecvFrameDesc; */ #define ShortFrame 0x0001 #define NoEOF 0x0101 #define Done 0x0801 #define Busy 0x0901 #define Ok 0x0a01 #define CrcError 0x0c01 #define AlignError 0x0d01 #define OutOfBufs 0x0e01 #define Overrun 0x0f01 #define EndOfList 0x1801 #define Suspend 0x1901 /* * Receive buffer descriptor. */ typedef struct NetIERecvBufDesc { unsigned short bits1[1]; /* See below. */ short nextRBD; /* Next receive buffer descriptor. */ int bufAddr; /* The address of the buffer that this descriptor puts its data. */ unsigned short bits2[1]; /* See below. */ Address realBufAddr; /* The SUN address of the buffer where this descriptor puts its data*/ volatile struct NetIERecvBufDesc *realNextRBD; /* The 6800 Address of the next receive buffer descriptor. */ } NetIERecvBufDesc; /* * The receive buffer descriptor has the following format: * * typedef struct NetIERecvBufDesc { * unsigned int countLow :8; Low order bits of the count of bytes * in this buffer. * unsigned int eof :1; Last buffer for this packet. * unsigned int countValid :1; The value in the count field is * valid. * unsigned int countHigh :6; High order bits of the count. * * short nextRBD; Next receive buffer descriptor. * int bufAddr; The address of the buffer that * this descriptor puts its data. * * unsigned int bufSizeLow :8; Low order bits of amount of bytes * this buffer is capable of holding * unsigned int endOfList :1; This is the end of the RBD list. * unsigned int :1; Unused. * unsigned int bufSizeHigh :6; High order 6 bits of the buffer * size. * Address realBufAddr; The SUN address of the buffer * where this descriptor puts its data * volatile struct NetIERecvBufDesc *realNextRBD; The 6800 Address of the * next receive buffer descriptor. *} NetIERecvBufDesc; */ #define CountLow 0x0008 #define Eof 0x0801 #define CountValid 0x0901 #define CountHigh 0x0a06 #define BufSizeLow 0x0008 #define RBDEndOfList 0x0801 #define BufSizeHigh 0x0a06 /* * The intel ethernet register. */ typedef unsigned char NetIEControlRegister; /* * The intel ethernet register has the following format: * * typedef struct { * unsigned int noReset :1; R/W: 0 => Ethernet reset, * 1 => Normal. * unsigned int noLoopback :1; R/W: 0 => Loopback, * 1 => Normal. * unsigned int channelAttn :1; R/W: Channel Attention. * unsigned int intrEnable :1; R/W: Interrupt enable. * unsigned int :2; Reserved. * unsigned int busError :1; R/O: DMA bus error. * unsigned int intrPending :1; R/O: Got an interrupt request. *} NetIEControlRegister; */ #define NoReset 0x0001 #define NoLoopback 0x0101 #define ChannelAttn 0x0201 #define IntrEnable 0x0301 #define BusError 0x0601 #define IntrPending 0x0701 /* * Structure to hold all state information associated with one of these * chips. */ typedef struct { unsigned int memBase; /* Address of control block memory. */ volatile NetIESysConfPtr *sysConfPtr; /* Where the system configuration pointer is at. */ volatile NetIEIntSysConfPtr *intSysConfPtr; /* Where the intermediate system configuration pointer is at. */ volatile NetIESCB *scbPtr; /* Pointer to system control block. */ volatile NetIECommandBlock *cmdBlockPtr;/* Head of command block list */ volatile NetIERecvFrameDesc *recvFrDscHeadPtr; /* Head of receive frame descriptor list. */ volatile NetIERecvFrameDesc *recvFrDscTailPtr; /* Tail of receive frame descriptor list. */ volatile NetIERecvBufDesc *recvBufDscHeadPtr; /* Head of receive buffer descriptor list. */ volatile NetIERecvBufDesc *recvBufDscTailPtr; /* Tail of receive buffer descriptor list. */ List_Links *xmitList; /* Pointer to the front of the list of packets to be transmited. */ List_Links *xmitFreeList; /* Pointer to a list of unused transmission queue elements. */ List_Links xmitListHdr; /* The transmit list. */ List_Links xmitFreeListHdr;/* The unused elements. */ volatile NetIETransmitCB *xmitCBPtr; /* Pointer to the single command block for transmitting packets. */ Boolean transmitting; /* Set if are currently transmitting a packet. */ Boolean running; /* Is the chip currently active. */ volatile NetIEControlRegister *controlReg;/* The onboard device register.*/ Net_EtherAddress etherAddress; /* The ethernet address in reverse byte order. */ char *netIEXmitTempBuffer; /* Buffer for pieces of a * packet that are too small * or misaligned. */ volatile NetIETransmitBufDesc *xmitBufAddr; /* The address of the array * of buffer descriptor * headers. */ Net_ScatterGather *curScatGathPtr; /* Pointer to scatter gather element * for current packet being sent. */ Net_Interface *interPtr; /* Pointer back to network interface. */ Net_EtherStats stats; /* Performance statistics. */ Address netIERecvBuffers[NET_IE_NUM_RECV_BUFFERS]; /* Buffers.*/ char loopBackBuffer[NET_ETHER_MAX_BYTES]; /* Buffer for the * loopback address. */ } NetIEState; /* * XMIT_TEMP_BUFSIZE limits how big a thing can * be and start on an odd address. */ #define XMIT_TEMP_BUFSIZE (NET_ETHER_MAX_BYTES + 2) /* * Define the minimum size allowed for a piece of a transmitted packet. * There is a minimum size because the Intel chip has problems if the pieces * are too small. */ #define MIN_XMIT_BUFFER_SIZE 12 /* * Buffers for output. */ extern char *netIEXmitFiller; /* * General routines. */ extern ReturnStatus NetIEInit _ARGS_((Net_Interface *interPtr)); extern ReturnStatus NetIEOutput _ARGS_((Net_Interface *interPtr, Address hdrPtr, Net_ScatterGather *scatterGatherPtr, int scatterGatherLength, Boolean rpc, ReturnStatus *statusPtr)); extern void NetIEIntr _ARGS_((Net_Interface *interPtr, Boolean polling)); extern ReturnStatus NetIEIOControl _ARGS_((Net_Interface *interPtr, Fs_IOCParam *ioctlPtr, Fs_IOReply *replyPtr)); extern void NetIERestart _ARGS_((Net_Interface *interPtr)); extern void NetIEReset _ARGS_((Net_Interface *interPtr)); extern ReturnStatus NetIEGetStats _ARGS_((Net_Interface *interPtr, Net_Stats *statPtr)); /* * Routines for transmitting. */ extern void NetIEXmitInit _ARGS_((NetIEState *statePtr)); extern void NetIEXmitDone _ARGS_((NetIEState *statePtr)); extern void NetIEXmitDrop _ARGS_((NetIEState *statePtr)); /* * Routines for the command unit. */ extern void NetIECheckSCBCmdAccept _ARGS_((volatile NetIESCB *scbPtr)); extern void NetIEExecCommand _ARGS_((register volatile NetIECommandBlock *cmdPtr, NetIEState *statePtr)); /* * Routines for the receive unit. */ extern void NetIERecvUnitInit _ARGS_((NetIEState *statePtr)); extern void NetIERecvProcess _ARGS_((Boolean dropPackets, NetIEState *statePtr)); /* * Memory routines. */ extern void NetIEMemInit _ARGS_((NetIEState *statePtr)); extern Address NetIEMemAlloc _ARGS_((NetIEState *statePtr)); /* * Routines to convert to addresses and offsets. */ extern int NetIEAddrFromSUNAddr _ARGS_((int addr)); extern int NetIEAddrToSUNAddr _ARGS_((int addr)); extern int NetIEOffsetFromSUNAddr _ARGS_((int addr, NetIEState *statePtr)); extern int NetIEOffsetToSUNAddr _ARGS_((int offset, NetIEState *statePtr)); extern int NetIEShortSwap _ARGS_((int num)); extern void NetIEStatePrint _ARGS_((NetIEState *statePtr)); extern void NetIEIntSysConfPtrPrint _ARGS_((volatile NetIEIntSysConfPtr *confPtr)); extern void NetIESCBPrint _ARGS_((volatile NetIESCB *scbPtr)); #endif /* _NETIEINT */