cregit-Linux how code gets into the kernel

Release 4.11 drivers/net/wan/lmc/lmc_var.h

#ifndef _LMC_VAR_H_

#define _LMC_VAR_H_

 /*
  * Copyright (c) 1997-2000 LAN Media Corporation (LMC)
  * All rights reserved.  www.lanmedia.com
  *
  * This code is written by:
  * Andrew Stanley-Jones (asj@cban.com)
  * Rob Braun (bbraun@vix.com),
  * Michael Graff (explorer@vix.com) and
  * Matt Thomas (matt@3am-software.com).
  *
  * This software may be used and distributed according to the terms
  * of the GNU General Public License version 2, incorporated herein by reference.
  */

#include <linux/timer.h>

/*
 * basic definitions used in lmc include files
 */


typedef struct lmc___softc lmc_softc_t;

typedef struct lmc___media lmc_media_t;

typedef struct lmc___ctl lmc_ctl_t;


#define lmc_csrptr_t    unsigned long


#define LMC_REG_RANGE 0x80


#define LMC_PRINTF_FMT  "%s"

#define LMC_PRINTF_ARGS	(sc->lmc_device->name)


#define TX_TIMEOUT (2*HZ)


#define LMC_TXDESCS            32

#define LMC_RXDESCS            32


#define LMC_LINK_UP            1

#define LMC_LINK_DOWN          0

/* These macros for generic read and write to and from the dec chip */

#define LMC_CSR_READ(sc, csr) \
	inl((sc)->lmc_csrs.csr)

#define LMC_CSR_WRITE(sc, reg, val) \
	outl((val), (sc)->lmc_csrs.reg)

//#ifdef _LINUX_DELAY_H
//      #define SLOW_DOWN_IO udelay(2);
//      #undef __SLOW_DOWN_IO
//      #define __SLOW_DOWN_IO udelay(2);
//#endif


#define DELAY(n) SLOW_DOWN_IO


#define lmc_delay() inl(sc->lmc_csrs.csr_9)

/* This macro sync's up with the mii so that reads and writes can take place */

#define LMC_MII_SYNC(sc) do {int n=32; while( n >= 0 ) { \
                LMC_CSR_WRITE((sc), csr_9, 0x20000); \
                lmc_delay(); \
                LMC_CSR_WRITE((sc), csr_9, 0x30000); \
                lmc_delay(); \
                n--; }} while(0)


struct lmc_regfile_t {
    
lmc_csrptr_t csr_busmode;                  /* CSR0 */
    
lmc_csrptr_t csr_txpoll;                   /* CSR1 */
    
lmc_csrptr_t csr_rxpoll;                   /* CSR2 */
    
lmc_csrptr_t csr_rxlist;                   /* CSR3 */
    
lmc_csrptr_t csr_txlist;                   /* CSR4 */
    
lmc_csrptr_t csr_status;                   /* CSR5 */
    
lmc_csrptr_t csr_command;                  /* CSR6 */
    
lmc_csrptr_t csr_intr;                     /* CSR7 */
    
lmc_csrptr_t csr_missed_frames;            /* CSR8 */
    
lmc_csrptr_t csr_9;                        /* CSR9 */
    
lmc_csrptr_t csr_10;                       /* CSR10 */
    
lmc_csrptr_t csr_11;                       /* CSR11 */
    
lmc_csrptr_t csr_12;                       /* CSR12 */
    
lmc_csrptr_t csr_13;                       /* CSR13 */
    
lmc_csrptr_t csr_14;                       /* CSR14 */
    
lmc_csrptr_t csr_15;                       /* CSR15 */
};


#define csr_enetrom             csr_9   
/* 21040 */

#define csr_reserved            csr_10  
/* 21040 */

#define csr_full_duplex         csr_11  
/* 21040 */

#define csr_bootrom             csr_10  
/* 21041/21140A/?? */

#define csr_gp                  csr_12  
/* 21140* */

#define csr_watchdog            csr_15  
/* 21140* */

#define csr_gp_timer            csr_11  
/* 21041/21140* */

#define csr_srom_mii            csr_9   
/* 21041/21140* */

#define csr_sia_status          csr_12  
/* 2104x */

#define csr_sia_connectivity    csr_13  
/* 2104x */

#define csr_sia_tx_rx           csr_14  
/* 2104x */

#define csr_sia_general         csr_15  
/* 2104x */

/* tulip length/control transmit descriptor definitions
 *  used to define bits in the second tulip_desc_t field (length)
 *  for the transmit descriptor -baz */


#define LMC_TDES_FIRST_BUFFER_SIZE       ((u32)(0x000007FF))

#define LMC_TDES_SECOND_BUFFER_SIZE      ((u32)(0x003FF800))

#define LMC_TDES_HASH_FILTERING          ((u32)(0x00400000))

#define LMC_TDES_DISABLE_PADDING         ((u32)(0x00800000))

#define LMC_TDES_SECOND_ADDR_CHAINED     ((u32)(0x01000000))

#define LMC_TDES_END_OF_RING             ((u32)(0x02000000))

#define LMC_TDES_ADD_CRC_DISABLE         ((u32)(0x04000000))

#define LMC_TDES_SETUP_PACKET            ((u32)(0x08000000))

#define LMC_TDES_INVERSE_FILTERING       ((u32)(0x10000000))

#define LMC_TDES_FIRST_SEGMENT           ((u32)(0x20000000))

#define LMC_TDES_LAST_SEGMENT            ((u32)(0x40000000))

#define LMC_TDES_INTERRUPT_ON_COMPLETION ((u32)(0x80000000))


#define TDES_SECOND_BUFFER_SIZE_BIT_NUMBER  11

#define TDES_COLLISION_COUNT_BIT_NUMBER     3

/* Constants for the RCV descriptor RDES */


#define LMC_RDES_OVERFLOW             ((u32)(0x00000001))

#define LMC_RDES_CRC_ERROR            ((u32)(0x00000002))

#define LMC_RDES_DRIBBLING_BIT        ((u32)(0x00000004))

#define LMC_RDES_REPORT_ON_MII_ERR    ((u32)(0x00000008))

#define LMC_RDES_RCV_WATCHDOG_TIMEOUT ((u32)(0x00000010))

#define LMC_RDES_FRAME_TYPE           ((u32)(0x00000020))

#define LMC_RDES_COLLISION_SEEN       ((u32)(0x00000040))

#define LMC_RDES_FRAME_TOO_LONG       ((u32)(0x00000080))

#define LMC_RDES_LAST_DESCRIPTOR      ((u32)(0x00000100))

#define LMC_RDES_FIRST_DESCRIPTOR     ((u32)(0x00000200))

#define LMC_RDES_MULTICAST_FRAME      ((u32)(0x00000400))

#define LMC_RDES_RUNT_FRAME           ((u32)(0x00000800))

#define LMC_RDES_DATA_TYPE            ((u32)(0x00003000))

#define LMC_RDES_LENGTH_ERROR         ((u32)(0x00004000))

#define LMC_RDES_ERROR_SUMMARY        ((u32)(0x00008000))

#define LMC_RDES_FRAME_LENGTH         ((u32)(0x3FFF0000))

#define LMC_RDES_OWN_BIT              ((u32)(0x80000000))


#define RDES_FRAME_LENGTH_BIT_NUMBER       16


#define LMC_RDES_ERROR_MASK ( (u32)( \
          LMC_RDES_OVERFLOW \
        | LMC_RDES_DRIBBLING_BIT \
        | LMC_RDES_REPORT_ON_MII_ERR \
        | LMC_RDES_COLLISION_SEEN ) )


/*
 * Ioctl info
 */

typedef struct {
	
u32	n;
	
u32	m;
	
u32	v;
	
u32	x;
	
u32	r;
	
u32	f;
	
u32	exact;
} 
lmc_av9110_t;

/*
 * Common structure passed to the ioctl code.
 */

struct lmc___ctl {
	
u32	cardtype;
	
u32	clock_source;		/* HSSI, T1 */
	
u32	clock_rate;		/* T1 */
	
u32	crc_length;
	
u32	cable_length;		/* DS3 */
	
u32	scrambler_onoff;	/* DS3 */
	
u32	cable_type;		/* T1 */
	
u32	keepalive_onoff;	/* protocol */
	
u32	ticks;			/* ticks/sec */
	union {
		
lmc_av9110_t	ssi;
	} 
cardspec;
	
u32       circuit_type;   /* T1 or E1 */
};


/*
 * Careful, look at the data sheet, there's more to this
 * structure than meets the eye.  It should probably be:
 *
 * struct tulip_desc_t {
 *         u8  own:1;
 *         u32 status:31;
 *         u32 control:10;
 *         u32 buffer1;
 *         u32 buffer2;
 * };
 * You could also expand status control to provide more bit information
 */


struct tulip_desc_t {
	
s32 status;
	
s32 length;
	
u32 buffer1;
	
u32 buffer2;
};

/*
 * media independent methods to check on media status, link, light LEDs,
 * etc.
 */

struct lmc___media {
	
void	(* init)(lmc_softc_t * const);
	
void	(* defaults)(lmc_softc_t * const);
	
void	(* set_status)(lmc_softc_t * const, lmc_ctl_t *);
	
void	(* set_clock_source)(lmc_softc_t * const, int);
	
void	(* set_speed)(lmc_softc_t * const, lmc_ctl_t *);
	
void	(* set_cable_length)(lmc_softc_t * const, int);
	
void	(* set_scrambler)(lmc_softc_t * const, int);
	
int	(* get_link_status)(lmc_softc_t * const);
	
void	(* set_link_status)(lmc_softc_t * const, int);
	
void	(* set_crc_length)(lmc_softc_t * const, int);
        
void    (* set_circuit_type)(lmc_softc_t * const, int);
        
void	(* watchdog)(lmc_softc_t * const);
};



#define STATCHECK     0xBEEFCAFE


struct lmc_extra_statistics
{
	
u32       version_size;
	
u32       lmc_cardtype;

	
u32       tx_ProcTimeout;
	
u32       tx_IntTimeout;
	
u32       tx_NoCompleteCnt;
	
u32       tx_MaxXmtsB4Int;
	
u32       tx_TimeoutCnt;
	
u32       tx_OutOfSyncPtr;
	
u32       tx_tbusy0;
	
u32       tx_tbusy1;
	
u32       tx_tbusy_calls;
	
u32       resetCount;
	
u32       lmc_txfull;
	
u32       tbusy;
	
u32       dirtyTx;
	
u32       lmc_next_tx;
	
u32       otherTypeCnt;
	
u32       lastType;
	
u32       lastTypeOK;
	
u32       txLoopCnt;
	
u32       usedXmtDescripCnt;
	
u32       txIndexCnt;
	
u32       rxIntLoopCnt;

	
u32       rx_SmallPktCnt;
	
u32       rx_BadPktSurgeCnt;
	
u32       rx_BuffAllocErr;
	
u32       tx_lossOfClockCnt;

	/* T1 error counters */
	
u32       framingBitErrorCount;
	
u32       lineCodeViolationCount;

	
u32       lossOfFrameCount;
	
u32       changeOfFrameAlignmentCount;
	
u32       severelyErroredFrameCount;

	
u32       check;
};


typedef struct lmc_xinfo {
	
u32       Magic0;                         /* BEEFCAFE */

	
u32       PciCardType;
	
u32       PciSlotNumber;          /* PCI slot number       */

	
u16	       DriverMajorVersion;
	
u16	       DriverMinorVersion;
	
u16	       DriverSubVersion;

	
u16	       XilinxRevisionNumber;
	
u16	       MaxFrameSize;

	
u16     	  t1_alarm1_status;
	
u16       	t1_alarm2_status;

	
int             link_status;
	
u32       mii_reg16;

	
u32       Magic1;                         /* DEADBEEF */
} 
LMC_XINFO;


/*
 * forward decl
 */

struct lmc___softc {
	
char                   *name;
	
u8			board_idx;
	
struct lmc_extra_statistics extra_stats;
	
struct net_device      *lmc_device;

	



int                     hang, rxdesc, bad_packet, some_counter;
	
u32  	         	txgo;
	
struct lmc_regfile_t	lmc_csrs;
	
volatile u32		lmc_txtick;
	
volatile u32		lmc_rxtick;
	
u32			lmc_flags;
	
u32			lmc_intrmask;	/* our copy of csr_intr */
	
u32			lmc_cmdmode;	/* our copy of csr_cmdmode */
	
u32			lmc_busmode;	/* our copy of csr_busmode */
	
u32			lmc_gpio_io;	/* state of in/out settings */
	
u32			lmc_gpio;	/* state of outputs */
	
struct sk_buff*		lmc_txq[LMC_TXDESCS];
	
struct sk_buff*		lmc_rxq[LMC_RXDESCS];
	volatile
	
struct tulip_desc_t	lmc_rxring[LMC_RXDESCS];
	volatile
	
struct tulip_desc_t	lmc_txring[LMC_TXDESCS];
	

unsigned int		lmc_next_rx, lmc_next_tx;
	volatile
	

unsigned int		lmc_taint_tx, lmc_taint_rx;
	

int			lmc_tx_start, lmc_txfull;
	
int			lmc_txbusy;
	
u16			lmc_miireg16;
	
int			lmc_ok;
	
int			last_link_status;
	
int			lmc_cardtype;
	
u32               	last_frameerr;
	
lmc_media_t	       *lmc_media;
	
struct timer_list	timer;
	
lmc_ctl_t		ictl;
	
u32			TxDescriptControlInit;

	
int                     tx_TimeoutInd; /* additional driver state */
	
int                     tx_TimeoutDisplay;
	
unsigned int		lastlmc_taint_tx;
	
int                     lasttx_packets;
	
u32			tx_clockState;
	
u32			lmc_crcSize;
	
LMC_XINFO		lmc_xinfo;
	


char                    lmc_yel, lmc_blue, lmc_red; /* for T1 and DS3 */
	
char                    lmc_timing; /* for HSSI and SSI */
	
int                     got_irq;

	
char                    last_led_err[4];

	
u32                     last_int;
	
u32                     num_int;

	
spinlock_t              lmc_lock;
	
u16			if_type;       /* HDLC/PPP or NET */

	/* Failure cases */
	
u8			failed_ring;
	
u8			failed_recv_alloc;

	/* Structure check */
	
u32                     check;
};


#define LMC_PCI_TIME 1

#define LMC_EXT_TIME 0


#define PKT_BUF_SZ              1542  
/* was 1536 */

/* CSR5 settings */

#define TIMER_INT     0x00000800

#define TP_LINK_FAIL  0x00001000

#define TP_LINK_PASS  0x00000010

#define NORMAL_INT    0x00010000

#define ABNORMAL_INT  0x00008000

#define RX_JABBER_INT 0x00000200

#define RX_DIED       0x00000100

#define RX_NOBUFF     0x00000080

#define RX_INT        0x00000040

#define TX_FIFO_UNDER 0x00000020

#define TX_JABBER     0x00000008

#define TX_NOBUFF     0x00000004

#define TX_DIED       0x00000002

#define TX_INT        0x00000001

/* CSR6 settings */

#define OPERATION_MODE  0x00000200 
/* Full Duplex      */

#define PROMISC_MODE    0x00000040 
/* Promiscuous Mode */

#define RECEIVE_ALL     0x40000000 
/* Receive All      */

#define PASS_BAD_FRAMES 0x00000008 
/* Pass Bad Frames  */

/* Dec control registers  CSR6 as well */

#define LMC_DEC_ST 0x00002000

#define LMC_DEC_SR 0x00000002

/* CSR15 settings */

#define RECV_WATCHDOG_DISABLE 0x00000010

#define JABBER_DISABLE        0x00000001

/* More settings */
/*
 * aSR6 -- Command (Operation Mode) Register
 */

#define TULIP_CMD_RECEIVEALL    0x40000000L 
/* (RW)  Receivel all frames? */

#define TULIP_CMD_MUSTBEONE     0x02000000L 
/* (RW)  Must Be One (21140) */

#define TULIP_CMD_TXTHRSHLDCTL  0x00400000L 
/* (RW)  Transmit Threshold Mode (21140) */

#define TULIP_CMD_STOREFWD      0x00200000L 
/* (RW)  Store and Forward (21140) */

#define TULIP_CMD_NOHEARTBEAT   0x00080000L 
/* (RW)  No Heartbeat (21140) */

#define TULIP_CMD_PORTSELECT    0x00040000L 
/* (RW)  Post Select (100Mb) (21140) */

#define TULIP_CMD_FULLDUPLEX    0x00000200L 
/* (RW)  Full Duplex Mode */

#define TULIP_CMD_OPERMODE      0x00000C00L 
/* (RW)  Operating Mode */

#define TULIP_CMD_PROMISCUOUS   0x00000041L 
/* (RW)  Promiscuous Mode */

#define TULIP_CMD_PASSBADPKT    0x00000008L 
/* (RW)  Pass Bad Frames */

#define TULIP_CMD_THRESHOLDCTL  0x0000C000L 
/* (RW)  Threshold Control */


#define TULIP_GP_PINSET         0x00000100L

#define TULIP_BUSMODE_SWRESET   0x00000001L

#define TULIP_WATCHDOG_TXDISABLE 0x00000001L

#define TULIP_WATCHDOG_RXDISABLE 0x00000010L


#define TULIP_STS_NORMALINTR    0x00010000L 
/* (RW)  Normal Interrupt */

#define TULIP_STS_ABNRMLINTR    0x00008000L 
/* (RW)  Abnormal Interrupt */

#define TULIP_STS_ERI           0x00004000L 
/* (RW)  Early Receive Interrupt */

#define TULIP_STS_SYSERROR      0x00002000L 
/* (RW)  System Error */

#define TULIP_STS_GTE           0x00000800L 
/* (RW)  General Pupose Timer Exp */

#define TULIP_STS_ETI           0x00000400L 
/* (RW)  Early Transmit Interrupt */

#define TULIP_STS_RXWT          0x00000200L 
/* (RW)  Receiver Watchdog Timeout */

#define TULIP_STS_RXSTOPPED     0x00000100L 
/* (RW)  Receiver Process Stopped */

#define TULIP_STS_RXNOBUF       0x00000080L 
/* (RW)  Receive Buf Unavail */

#define TULIP_STS_RXINTR        0x00000040L 
/* (RW)  Receive Interrupt */

#define TULIP_STS_TXUNDERFLOW   0x00000020L 
/* (RW)  Transmit Underflow */

#define TULIP_STS_TXJABER       0x00000008L 
/* (RW)  Jabber timeout */

#define TULIP_STS_TXNOBUF       0x00000004L

#define TULIP_STS_TXSTOPPED     0x00000002L 
/* (RW)  Transmit Process Stopped */

#define TULIP_STS_TXINTR        0x00000001L 
/* (RW)  Transmit Interrupt */


#define TULIP_STS_RXS_STOPPED   0x00000000L 
/*        000 - Stopped */


#define TULIP_STS_RXSTOPPED     0x00000100L             
/* (RW)  Receive Process Stopped */

#define TULIP_STS_RXNOBUF       0x00000080L


#define TULIP_CMD_TXRUN         0x00002000L 
/* (RW)  Start/Stop Transmitter */

#define TULIP_CMD_RXRUN         0x00000002L 
/* (RW)  Start/Stop Receive Filtering */

#define TULIP_DSTS_TxDEFERRED   0x00000001      
/* Initially Deferred */

#define TULIP_DSTS_OWNER        0x80000000      
/* Owner (1 = 21040) */

#define TULIP_DSTS_RxMIIERR     0x00000008

#define LMC_DSTS_ERRSUM         (TULIP_DSTS_RxMIIERR)


#define TULIP_DEFAULT_INTR_MASK  (TULIP_STS_NORMALINTR \
  | TULIP_STS_RXINTR       \
  | TULIP_STS_TXINTR     \
  | TULIP_STS_ABNRMLINTR \
  | TULIP_STS_SYSERROR   \
  | TULIP_STS_TXSTOPPED  \
  | TULIP_STS_TXUNDERFLOW\
  | TULIP_STS_RXSTOPPED )


#define DESC_OWNED_BY_SYSTEM   ((u32)(0x00000000))

#define DESC_OWNED_BY_DC21X4   ((u32)(0x80000000))

#ifndef TULIP_CMD_RECEIVEALL

#define TULIP_CMD_RECEIVEALL 0x40000000L
#endif

/* Adapter module number */

#define LMC_ADAP_HSSI           2

#define LMC_ADAP_DS3            3

#define LMC_ADAP_SSI            4

#define LMC_ADAP_T1             5


#define LMC_MTU 1500


#define LMC_CRC_LEN_16 2  
/* 16-bit CRC */

#define LMC_CRC_LEN_32 4

#endif /* _LMC_VAR_H_ */

Overall Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)123491.00%111.11%
Krzysztof Hałasa1138.33%222.22%
Linus Torvalds30.22%222.22%
Lucas De Marchi30.22%111.11%
Stephen Hemminger10.07%111.11%
Joe Perches10.07%111.11%
Dave Jones10.07%111.11%
Total1356100.00%9100.00%
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