[linux.git] / drivers / net / sunqe.h

/* $Id: sunqe.h,v 1.13 2000/02/09 11:15:42 davem Exp $
 * sunqe.h: Definitions for the Sun QuadEthernet driver.
 *
 * Copyright (C) 1996 David S. Miller ([email protected])
 */

#ifndef _SUNQE_H
#define _SUNQE_H

/* QEC global registers. */
#define GLOB_CTRL	0x00UL		/* Control			*/
#define GLOB_STAT	0x04UL		/* Status			*/
#define GLOB_PSIZE	0x08UL		/* Packet Size			*/
#define GLOB_MSIZE	0x0cUL		/* Local-memory Size		*/
#define GLOB_RSIZE	0x10UL		/* Receive partition size	*/
#define GLOB_TSIZE	0x14UL		/* Transmit partition size	*/
#define GLOB_REG_SIZE	0x18UL

#define GLOB_CTRL_MMODE       0x40000000 /* MACE qec mode            */
#define GLOB_CTRL_BMODE       0x10000000 /* BigMAC qec mode          */
#define GLOB_CTRL_EPAR        0x00000020 /* Enable parity            */
#define GLOB_CTRL_ACNTRL      0x00000018 /* SBUS arbitration control */
#define GLOB_CTRL_B64         0x00000004 /* 64 byte dvma bursts      */
#define GLOB_CTRL_B32         0x00000002 /* 32 byte dvma bursts      */
#define GLOB_CTRL_B16         0x00000000 /* 16 byte dvma bursts      */
#define GLOB_CTRL_RESET       0x00000001 /* Reset the QEC            */

#define GLOB_STAT_TX          0x00000008 /* BigMAC Transmit IRQ      */
#define GLOB_STAT_RX          0x00000004 /* BigMAC Receive IRQ       */
#define GLOB_STAT_BM          0x00000002 /* BigMAC Global IRQ        */
#define GLOB_STAT_ER          0x00000001 /* BigMAC Error IRQ         */

#define GLOB_PSIZE_2048       0x00       /* 2k packet size           */
#define GLOB_PSIZE_4096       0x01       /* 4k packet size           */
#define GLOB_PSIZE_6144       0x10       /* 6k packet size           */
#define GLOB_PSIZE_8192       0x11       /* 8k packet size           */

/* In MACE mode, there are four qe channels.  Each channel has it's own
 * status bits in the QEC status register.  This macro picks out the
 * ones you want.
 */
#define GLOB_STAT_PER_QE(status, channel) (((status) >> ((channel) * 4)) & 0xf)

/* The following registers are for per-qe channel information/status. */
#define CREG_CTRL	0x00UL	/* Control                   */
#define CREG_STAT	0x04UL	/* Status                    */
#define CREG_RXDS	0x08UL	/* RX descriptor ring ptr    */
#define CREG_TXDS	0x0cUL	/* TX descriptor ring ptr    */
#define CREG_RIMASK	0x10UL	/* RX Interrupt Mask         */
#define CREG_TIMASK	0x14UL	/* TX Interrupt Mask         */
#define CREG_QMASK	0x18UL	/* QEC Error Interrupt Mask  */
#define CREG_MMASK	0x1cUL	/* MACE Error Interrupt Mask */
#define CREG_RXWBUFPTR	0x20UL	/* Local memory rx write ptr */
#define CREG_RXRBUFPTR	0x24UL	/* Local memory rx read ptr  */
#define CREG_TXWBUFPTR	0x28UL	/* Local memory tx write ptr */
#define CREG_TXRBUFPTR	0x2cUL	/* Local memory tx read ptr  */
#define CREG_CCNT	0x30UL	/* Collision Counter         */
#define CREG_PIPG	0x34UL	/* Inter-Frame Gap           */
#define CREG_REG_SIZE	0x38UL

#define CREG_CTRL_RXOFF       0x00000004  /* Disable this qe's receiver*/
#define CREG_CTRL_RESET       0x00000002  /* Reset this qe channel     */
#define CREG_CTRL_TWAKEUP     0x00000001  /* Transmitter Wakeup, 'go'. */

#define CREG_STAT_EDEFER      0x10000000  /* Excessive Defers          */
#define CREG_STAT_CLOSS       0x08000000  /* Carrier Loss              */
#define CREG_STAT_ERETRIES    0x04000000  /* More than 16 retries      */
#define CREG_STAT_LCOLL       0x02000000  /* Late TX Collision         */
#define CREG_STAT_FUFLOW      0x01000000  /* FIFO Underflow            */
#define CREG_STAT_JERROR      0x00800000  /* Jabber Error              */
#define CREG_STAT_BERROR      0x00400000  /* Babble Error              */
#define CREG_STAT_TXIRQ       0x00200000  /* Transmit Interrupt        */
#define CREG_STAT_CCOFLOW     0x00100000  /* TX Coll-counter Overflow  */
#define CREG_STAT_TXDERROR    0x00080000  /* TX Descriptor is bogus    */
#define CREG_STAT_TXLERR      0x00040000  /* Late Transmit Error       */
#define CREG_STAT_TXPERR      0x00020000  /* Transmit Parity Error     */
#define CREG_STAT_TXSERR      0x00010000  /* Transmit SBUS error ack   */
#define CREG_STAT_RCCOFLOW    0x00001000  /* RX Coll-counter Overflow  */
#define CREG_STAT_RUOFLOW     0x00000800  /* Runt Counter Overflow     */
#define CREG_STAT_MCOFLOW     0x00000400  /* Missed Counter Overflow   */
#define CREG_STAT_RXFOFLOW    0x00000200  /* RX FIFO Overflow          */
#define CREG_STAT_RLCOLL      0x00000100  /* RX Late Collision         */
#define CREG_STAT_FCOFLOW     0x00000080  /* Frame Counter Overflow    */
#define CREG_STAT_CECOFLOW    0x00000040  /* CRC Error-counter Overflow*/
#define CREG_STAT_RXIRQ       0x00000020  /* Receive Interrupt         */
#define CREG_STAT_RXDROP      0x00000010  /* Dropped a RX'd packet     */
#define CREG_STAT_RXSMALL     0x00000008  /* Receive buffer too small  */
#define CREG_STAT_RXLERR      0x00000004  /* Receive Late Error        */
#define CREG_STAT_RXPERR      0x00000002  /* Receive Parity Error      */
#define CREG_STAT_RXSERR      0x00000001  /* Receive SBUS Error ACK    */

#define CREG_STAT_ERRORS      (CREG_STAT_EDEFER|CREG_STAT_CLOSS|CREG_STAT_ERETRIES|     \
			       CREG_STAT_LCOLL|CREG_STAT_FUFLOW|CREG_STAT_JERROR|       \
			       CREG_STAT_BERROR|CREG_STAT_CCOFLOW|CREG_STAT_TXDERROR|   \
			       CREG_STAT_TXLERR|CREG_STAT_TXPERR|CREG_STAT_TXSERR|      \
			       CREG_STAT_RCCOFLOW|CREG_STAT_RUOFLOW|CREG_STAT_MCOFLOW| \
			       CREG_STAT_RXFOFLOW|CREG_STAT_RLCOLL|CREG_STAT_FCOFLOW|   \
			       CREG_STAT_CECOFLOW|CREG_STAT_RXDROP|CREG_STAT_RXSMALL|   \
			       CREG_STAT_RXLERR|CREG_STAT_RXPERR|CREG_STAT_RXSERR)

#define CREG_QMASK_COFLOW     0x00100000  /* CollCntr overflow         */
#define CREG_QMASK_TXDERROR   0x00080000  /* TXD error                 */
#define CREG_QMASK_TXLERR     0x00040000  /* TX late error             */
#define CREG_QMASK_TXPERR     0x00020000  /* TX parity error           */
#define CREG_QMASK_TXSERR     0x00010000  /* TX sbus error ack         */
#define CREG_QMASK_RXDROP     0x00000010  /* RX drop                   */
#define CREG_QMASK_RXBERROR   0x00000008  /* RX buffer error           */
#define CREG_QMASK_RXLEERR    0x00000004  /* RX late error             */
#define CREG_QMASK_RXPERR     0x00000002  /* RX parity error           */
#define CREG_QMASK_RXSERR     0x00000001  /* RX sbus error ack         */

#define CREG_MMASK_EDEFER     0x10000000  /* Excess defer              */
#define CREG_MMASK_CLOSS      0x08000000  /* Carrier loss              */
#define CREG_MMASK_ERETRY     0x04000000  /* Excess retry              */
#define CREG_MMASK_LCOLL      0x02000000  /* Late collision error      */
#define CREG_MMASK_UFLOW      0x01000000  /* Underflow                 */
#define CREG_MMASK_JABBER     0x00800000  /* Jabber error              */
#define CREG_MMASK_BABBLE     0x00400000  /* Babble error              */
#define CREG_MMASK_OFLOW      0x00000800  /* Overflow                  */
#define CREG_MMASK_RXCOLL     0x00000400  /* RX Coll-Cntr overflow     */
#define CREG_MMASK_RPKT       0x00000200  /* Runt pkt overflow         */
#define CREG_MMASK_MPKT       0x00000100  /* Missed pkt overflow       */

#define CREG_PIPG_TENAB       0x00000020  /* Enable Throttle           */
#define CREG_PIPG_MMODE       0x00000010  /* Manual Mode               */
#define CREG_PIPG_WMASK       0x0000000f  /* SBUS Wait Mask            */

/* Per-channel AMD 79C940 MACE registers. */
#define MREGS_RXFIFO	0x00UL	/* Receive FIFO                   */
#define MREGS_TXFIFO	0x01UL	/* Transmit FIFO                  */
#define MREGS_TXFCNTL	0x02UL	/* Transmit Frame Control         */
#define MREGS_TXFSTAT	0x03UL	/* Transmit Frame Status          */
#define MREGS_TXRCNT	0x04UL	/* Transmit Retry Count           */
#define MREGS_RXFCNTL	0x05UL	/* Receive Frame Control          */
#define MREGS_RXFSTAT	0x06UL	/* Receive Frame Status           */
#define MREGS_FFCNT	0x07UL	/* FIFO Frame Count               */
#define MREGS_IREG	0x08UL	/* Interrupt Register             */
#define MREGS_IMASK	0x09UL	/* Interrupt Mask                 */
#define MREGS_POLL	0x0aUL	/* POLL Register                  */
#define MREGS_BCONFIG	0x0bUL	/* BIU Config                     */
#define MREGS_FCONFIG	0x0cUL	/* FIFO Config                    */
#define MREGS_MCONFIG	0x0dUL	/* MAC Config                     */
#define MREGS_PLSCONFIG	0x0eUL	/* PLS Config                     */
#define MREGS_PHYCONFIG	0x0fUL	/* PHY Config                     */
#define MREGS_CHIPID1	0x10UL	/* Chip-ID, low bits              */
#define MREGS_CHIPID2	0x11UL	/* Chip-ID, high bits             */
#define MREGS_IACONFIG	0x12UL	/* Internal Address Config        */
	/* 0x13UL, reserved */
#define MREGS_FILTER	0x14UL	/* Logical Address Filter         */
#define MREGS_ETHADDR	0x15UL	/* Our Ethernet Address           */
	/* 0x16UL, reserved */
	/* 0x17UL, reserved */
#define MREGS_MPCNT	0x18UL	/* Missed Packet Count            */
	/* 0x19UL, reserved */
#define MREGS_RPCNT	0x1aUL	/* Runt Packet Count              */
#define MREGS_RCCNT	0x1bUL	/* RX Collision Count             */
	/* 0x1cUL, reserved */
#define MREGS_UTEST	0x1dUL	/* User Test                      */
#define MREGS_RTEST1	0x1eUL	/* Reserved Test 1                */
#define MREGS_RTEST2	0x1fUL	/* Reserved Test 2                */
#define MREGS_REG_SIZE	0x20UL

#define MREGS_TXFCNTL_DRETRY        0x80 /* Retry disable                  */
#define MREGS_TXFCNTL_DFCS          0x08 /* Disable TX FCS                 */
#define MREGS_TXFCNTL_AUTOPAD       0x01 /* TX auto pad                    */

#define MREGS_TXFSTAT_VALID         0x80 /* TX valid                       */
#define MREGS_TXFSTAT_UNDERFLOW     0x40 /* TX underflow                   */
#define MREGS_TXFSTAT_LCOLL         0x20 /* TX late collision              */
#define MREGS_TXFSTAT_MRETRY        0x10 /* TX > 1 retries                 */
#define MREGS_TXFSTAT_ORETRY        0x08 /* TX 1 retry                     */
#define MREGS_TXFSTAT_PDEFER        0x04 /* TX pkt deferred                */
#define MREGS_TXFSTAT_CLOSS         0x02 /* TX carrier lost                */
#define MREGS_TXFSTAT_RERROR        0x01 /* TX retry error                 */

#define MREGS_TXRCNT_EDEFER         0x80 /* TX Excess defers               */
#define MREGS_TXRCNT_CMASK          0x0f /* TX retry count                 */

#define MREGS_RXFCNTL_LOWLAT        0x08 /* RX low latency                 */
#define MREGS_RXFCNTL_AREJECT       0x04 /* RX addr match rej              */
#define MREGS_RXFCNTL_AUTOSTRIP     0x01 /* RX auto strip                  */

#define MREGS_RXFSTAT_OVERFLOW      0x80 /* RX overflow                    */
#define MREGS_RXFSTAT_LCOLL         0x40 /* RX late collision              */
#define MREGS_RXFSTAT_FERROR        0x20 /* RX framing error               */
#define MREGS_RXFSTAT_FCSERROR      0x10 /* RX FCS error                   */
#define MREGS_RXFSTAT_RBCNT         0x0f /* RX msg byte count              */

#define MREGS_FFCNT_RX              0xf0 /* RX FIFO frame cnt              */
#define MREGS_FFCNT_TX              0x0f /* TX FIFO frame cnt              */

#define MREGS_IREG_JABBER           0x80 /* IRQ Jabber error               */
#define MREGS_IREG_BABBLE           0x40 /* IRQ Babble error               */
#define MREGS_IREG_COLL             0x20 /* IRQ Collision error            */
#define MREGS_IREG_RCCO             0x10 /* IRQ Collision cnt overflow     */
#define MREGS_IREG_RPKTCO           0x08 /* IRQ Runt packet count overflow */
#define MREGS_IREG_MPKTCO           0x04 /* IRQ missed packet cnt overflow */
#define MREGS_IREG_RXIRQ            0x02 /* IRQ RX'd a packet              */
#define MREGS_IREG_TXIRQ            0x01 /* IRQ TX'd a packet              */

#define MREGS_IMASK_BABBLE          0x40 /* IMASK Babble errors            */
#define MREGS_IMASK_COLL            0x20 /* IMASK Collision errors         */
#define MREGS_IMASK_MPKTCO          0x04 /* IMASK Missed pkt cnt overflow  */
#define MREGS_IMASK_RXIRQ           0x02 /* IMASK RX interrupts            */
#define MREGS_IMASK_TXIRQ           0x01 /* IMASK TX interrupts            */

#define MREGS_POLL_TXVALID          0x80 /* TX is valid                    */
#define MREGS_POLL_TDTR             0x40 /* TX data transfer request       */
#define MREGS_POLL_RDTR             0x20 /* RX data transfer request       */

#define MREGS_BCONFIG_BSWAP         0x40 /* Byte Swap                      */
#define MREGS_BCONFIG_4TS           0x00 /* 4byte transmit start point     */
#define MREGS_BCONFIG_16TS          0x10 /* 16byte transmit start point    */
#define MREGS_BCONFIG_64TS          0x20 /* 64byte transmit start point    */
#define MREGS_BCONFIG_112TS         0x30 /* 112byte transmit start point   */
#define MREGS_BCONFIG_RESET         0x01 /* SW-Reset the MACE              */

#define MREGS_FCONFIG_TXF8          0x00 /* TX fifo 8 write cycles         */
#define MREGS_FCONFIG_TXF32         0x80 /* TX fifo 32 write cycles        */
#define MREGS_FCONFIG_TXF16         0x40 /* TX fifo 16 write cycles        */
#define MREGS_FCONFIG_RXF64         0x20 /* RX fifo 64 write cycles        */
#define MREGS_FCONFIG_RXF32         0x10 /* RX fifo 32 write cycles        */
#define MREGS_FCONFIG_RXF16         0x00 /* RX fifo 16 write cycles        */
#define MREGS_FCONFIG_TFWU          0x08 /* TX fifo watermark update       */
#define MREGS_FCONFIG_RFWU          0x04 /* RX fifo watermark update       */
#define MREGS_FCONFIG_TBENAB        0x02 /* TX burst enable                */
#define MREGS_FCONFIG_RBENAB        0x01 /* RX burst enable                */

#define MREGS_MCONFIG_PROMISC       0x80 /* Promiscuous mode enable        */
#define MREGS_MCONFIG_TPDDISAB      0x40 /* TX 2part deferral enable       */
#define MREGS_MCONFIG_MBAENAB       0x20 /* Modified backoff enable        */
#define MREGS_MCONFIG_RPADISAB      0x08 /* RX physical addr disable       */
#define MREGS_MCONFIG_RBDISAB       0x04 /* RX broadcast disable           */
#define MREGS_MCONFIG_TXENAB        0x02 /* Enable transmitter             */
#define MREGS_MCONFIG_RXENAB        0x01 /* Enable receiver                */

#define MREGS_PLSCONFIG_TXMS        0x08 /* TX mode select                 */
#define MREGS_PLSCONFIG_GPSI        0x06 /* Use GPSI connector             */
#define MREGS_PLSCONFIG_DAI         0x04 /* Use DAI connector              */
#define MREGS_PLSCONFIG_TP          0x02 /* Use TwistedPair connector      */
#define MREGS_PLSCONFIG_AUI         0x00 /* Use AUI connector              */
#define MREGS_PLSCONFIG_IOENAB      0x01 /* PLS I/O enable                 */

#define MREGS_PHYCONFIG_LSTAT       0x80 /* Link status                    */
#define MREGS_PHYCONFIG_LTESTDIS    0x40 /* Disable link test logic        */
#define MREGS_PHYCONFIG_RXPOLARITY  0x20 /* RX polarity                    */
#define MREGS_PHYCONFIG_APCDISAB    0x10 /* AutoPolarityCorrect disab      */
#define MREGS_PHYCONFIG_LTENAB      0x08 /* Select low threshold           */
#define MREGS_PHYCONFIG_AUTO        0x04 /* Connector port auto-sel        */
#define MREGS_PHYCONFIG_RWU         0x02 /* Remote WakeUp                  */
#define MREGS_PHYCONFIG_AW          0x01 /* Auto Wakeup                    */

#define MREGS_IACONFIG_ACHNGE       0x80 /* Do address change              */
#define MREGS_IACONFIG_PARESET      0x04 /* Physical address reset         */
#define MREGS_IACONFIG_LARESET      0x02 /* Logical address reset          */

#define MREGS_UTEST_RTRENAB         0x80 /* Enable resv test register      */
#define MREGS_UTEST_RTRDISAB        0x40 /* Disab resv test register       */
#define MREGS_UTEST_RPACCEPT        0x20 /* Accept runt packets            */
#define MREGS_UTEST_FCOLL           0x10 /* Force collision status         */
#define MREGS_UTEST_FCSENAB         0x08 /* Enable FCS on RX               */
#define MREGS_UTEST_INTLOOPM        0x06 /* Intern lpback w/MENDEC         */
#define MREGS_UTEST_INTLOOP         0x04 /* Intern lpback                  */
#define MREGS_UTEST_EXTLOOP         0x02 /* Extern lpback                  */
#define MREGS_UTEST_NOLOOP          0x00 /* No loopback                    */

struct qe_rxd {
	u32 rx_flags;
	u32 rx_addr;
};

#define RXD_OWN      0x80000000 /* Ownership.      */
#define RXD_UPDATE   0x10000000 /* Being Updated?  */
#define RXD_LENGTH   0x000007ff /* Packet Length.  */

struct qe_txd {
	u32 tx_flags;
	u32 tx_addr;
};

#define TXD_OWN      0x80000000 /* Ownership.      */
#define TXD_SOP      0x40000000 /* Start Of Packet */
#define TXD_EOP      0x20000000 /* End Of Packet   */
#define TXD_UPDATE   0x10000000 /* Being Updated?  */
#define TXD_LENGTH   0x000007ff /* Packet Length.  */

#define TX_RING_MAXSIZE   256
#define RX_RING_MAXSIZE   256

#define TX_RING_SIZE      16
#define RX_RING_SIZE      16

#define NEXT_RX(num)       (((num) + 1) & (RX_RING_MAXSIZE - 1))
#define NEXT_TX(num)       (((num) + 1) & (TX_RING_MAXSIZE - 1))
#define PREV_RX(num)       (((num) - 1) & (RX_RING_MAXSIZE - 1))
#define PREV_TX(num)       (((num) - 1) & (TX_RING_MAXSIZE - 1))

#define TX_BUFFS_AVAIL(qp)                                    \
        (((qp)->tx_old <= (qp)->tx_new) ?                     \
	  (qp)->tx_old + (TX_RING_SIZE - 1) - (qp)->tx_new :  \
			    (qp)->tx_old - (qp)->tx_new - 1)

struct qe_init_block {
	struct qe_rxd qe_rxd[RX_RING_MAXSIZE];
	struct qe_txd qe_txd[TX_RING_MAXSIZE];
};

#define qib_offset(mem, elem) \
((__u32)((unsigned long)(&(((struct qe_init_block *)0)->mem[elem]))))

struct sunqe;

struct sunqec {
	void __iomem		*gregs;		/* QEC Global Registers         */
	struct sunqe		*qes[4];	/* Each child MACE              */
	unsigned int            qec_bursts;	/* Support burst sizes          */
	struct sbus_dev		*qec_sdev;	/* QEC's SBUS device            */
	struct sunqec		*next_module;	/* List of all QECs in system   */
};

#define PKT_BUF_SZ	1664
#define RXD_PKT_SZ	1664

struct sunqe_buffers {
	u8	tx_buf[TX_RING_SIZE][PKT_BUF_SZ];
	u8	__pad[2];
	u8	rx_buf[RX_RING_SIZE][PKT_BUF_SZ];
};

#define qebuf_offset(mem, elem) \
((__u32)((unsigned long)(&(((struct sunqe_buffers *)0)->mem[elem][0]))))

struct sunqe {
	void __iomem			*qcregs;		/* QEC per-channel Registers   */
	void __iomem			*mregs;		/* Per-channel MACE Registers  */
	struct qe_init_block      	*qe_block;	/* RX and TX descriptors       */
	__u32                      	qblock_dvma;	/* RX and TX descriptors       */
	spinlock_t			lock;		/* Protects txfull state       */
	int                        	rx_new, rx_old;	/* RX ring extents	       */
	int			   	tx_new, tx_old;	/* TX ring extents	       */
	struct sunqe_buffers		*buffers;	/* CPU visible address.        */
	__u32				buffers_dvma;	/* DVMA visible address.       */
	struct sunqec			*parent;
	u8				mconfig;	/* Base MACE mconfig value     */
	struct net_device_stats		net_stats;	/* Statistical counters        */
	struct sbus_dev			*qe_sdev;	/* QE's SBUS device struct     */
	struct net_device		*dev;		/* QE's netdevice struct       */
	int				channel;	/* Who am I?                   */
};

#endif /* !(_SUNQE_H) */
Commit	Line	Data
1da177e4 LT	1	/* $Id: sunqe.h,v 1.13 2000/02/09 11:15:42 davem Exp $
	2	* sunqe.h: Definitions for the Sun QuadEthernet driver.
	3	*
	4	* Copyright (C) 1996 David S. Miller ([email protected])
	5	*/
	6
	7	#ifndef _SUNQE_H
	8	#define _SUNQE_H
	9
	10	/* QEC global registers. */
	11	#define GLOB_CTRL 0x00UL /* Control */
	12	#define GLOB_STAT 0x04UL /* Status */
	13	#define GLOB_PSIZE 0x08UL /* Packet Size */
	14	#define GLOB_MSIZE 0x0cUL /* Local-memory Size */
	15	#define GLOB_RSIZE 0x10UL /* Receive partition size */
	16	#define GLOB_TSIZE 0x14UL /* Transmit partition size */
	17	#define GLOB_REG_SIZE 0x18UL
	18
	19	#define GLOB_CTRL_MMODE 0x40000000 /* MACE qec mode */
	20	#define GLOB_CTRL_BMODE 0x10000000 /* BigMAC qec mode */
	21	#define GLOB_CTRL_EPAR 0x00000020 /* Enable parity */
	22	#define GLOB_CTRL_ACNTRL 0x00000018 /* SBUS arbitration control */
	23	#define GLOB_CTRL_B64 0x00000004 /* 64 byte dvma bursts */
	24	#define GLOB_CTRL_B32 0x00000002 /* 32 byte dvma bursts */
	25	#define GLOB_CTRL_B16 0x00000000 /* 16 byte dvma bursts */
	26	#define GLOB_CTRL_RESET 0x00000001 /* Reset the QEC */
	27
	28	#define GLOB_STAT_TX 0x00000008 /* BigMAC Transmit IRQ */
	29	#define GLOB_STAT_RX 0x00000004 /* BigMAC Receive IRQ */
	30	#define GLOB_STAT_BM 0x00000002 /* BigMAC Global IRQ */
	31	#define GLOB_STAT_ER 0x00000001 /* BigMAC Error IRQ */
	32
	33	#define GLOB_PSIZE_2048 0x00 /* 2k packet size */
	34	#define GLOB_PSIZE_4096 0x01 /* 4k packet size */
	35	#define GLOB_PSIZE_6144 0x10 /* 6k packet size */
	36	#define GLOB_PSIZE_8192 0x11 /* 8k packet size */
	37
	38	/* In MACE mode, there are four qe channels. Each channel has it's own
	39	* status bits in the QEC status register. This macro picks out the
	40	* ones you want.
	41	*/
	42	#define GLOB_STAT_PER_QE(status, channel) (((status) >> ((channel) * 4)) & 0xf)
	43
	44	/* The following registers are for per-qe channel information/status. */
	45	#define CREG_CTRL 0x00UL /* Control */
	46	#define CREG_STAT 0x04UL /* Status */
	47	#define CREG_RXDS 0x08UL /* RX descriptor ring ptr */
	48	#define CREG_TXDS 0x0cUL /* TX descriptor ring ptr */
	49	#define CREG_RIMASK 0x10UL /* RX Interrupt Mask */
	50	#define CREG_TIMASK 0x14UL /* TX Interrupt Mask */
	51	#define CREG_QMASK 0x18UL /* QEC Error Interrupt Mask */
	52	#define CREG_MMASK 0x1cUL /* MACE Error Interrupt Mask */
	53	#define CREG_RXWBUFPTR 0x20UL /* Local memory rx write ptr */
	54	#define CREG_RXRBUFPTR 0x24UL /* Local memory rx read ptr */
	55	#define CREG_TXWBUFPTR 0x28UL /* Local memory tx write ptr */
	56	#define CREG_TXRBUFPTR 0x2cUL /* Local memory tx read ptr */
	57	#define CREG_CCNT 0x30UL /* Collision Counter */
	58	#define CREG_PIPG 0x34UL /* Inter-Frame Gap */
	59	#define CREG_REG_SIZE 0x38UL
	60
	61	#define CREG_CTRL_RXOFF 0x00000004 /* Disable this qe's receiver*/
	62	#define CREG_CTRL_RESET 0x00000002 /* Reset this qe channel */
	63	#define CREG_CTRL_TWAKEUP 0x00000001 /* Transmitter Wakeup, 'go'. */
	64
65	#define CREG_STAT_EDEFER 0x10000000 /* Excessive Defers */
66	#define CREG_STAT_CLOSS 0x08000000 /* Carrier Loss */
67	#define CREG_STAT_ERETRIES 0x04000000 /* More than 16 retries */
68	#define CREG_STAT_LCOLL 0x02000000 /* Late TX Collision */
69	#define CREG_STAT_FUFLOW 0x01000000 /* FIFO Underflow */
70	#define CREG_STAT_JERROR 0x00800000 /* Jabber Error */
71	#define CREG_STAT_BERROR 0x00400000 /* Babble Error */
72	#define CREG_STAT_TXIRQ 0x00200000 /* Transmit Interrupt */
73	#define CREG_STAT_CCOFLOW 0x00100000 /* TX Coll-counter Overflow */
74	#define CREG_STAT_TXDERROR 0x00080000 /* TX Descriptor is bogus */
75	#define CREG_STAT_TXLERR 0x00040000 /* Late Transmit Error */
76	#define CREG_STAT_TXPERR 0x00020000 /* Transmit Parity Error */
77	#define CREG_STAT_TXSERR 0x00010000 /* Transmit SBUS error ack */
78	#define CREG_STAT_RCCOFLOW 0x00001000 /* RX Coll-counter Overflow */
79	#define CREG_STAT_RUOFLOW 0x00000800 /* Runt Counter Overflow */
80	#define CREG_STAT_MCOFLOW 0x00000400 /* Missed Counter Overflow */
81	#define CREG_STAT_RXFOFLOW 0x00000200 /* RX FIFO Overflow */
82	#define CREG_STAT_RLCOLL 0x00000100 /* RX Late Collision */
83	#define CREG_STAT_FCOFLOW 0x00000080 /* Frame Counter Overflow */
84	#define CREG_STAT_CECOFLOW 0x00000040 /* CRC Error-counter Overflow*/
85	#define CREG_STAT_RXIRQ 0x00000020 /* Receive Interrupt */
86	#define CREG_STAT_RXDROP 0x00000010 /* Dropped a RX'd packet */
87	#define CREG_STAT_RXSMALL 0x00000008 /* Receive buffer too small */
88	#define CREG_STAT_RXLERR 0x00000004 /* Receive Late Error */
89	#define CREG_STAT_RXPERR 0x00000002 /* Receive Parity Error */
90	#define CREG_STAT_RXSERR 0x00000001 /* Receive SBUS Error ACK */
91
92	#define CREG_STAT_ERRORS (CREG_STAT_EDEFER\|CREG_STAT_CLOSS\|CREG_STAT_ERETRIES\| \
93	CREG_STAT_LCOLL\|CREG_STAT_FUFLOW\|CREG_STAT_JERROR\| \
94	CREG_STAT_BERROR\|CREG_STAT_CCOFLOW\|CREG_STAT_TXDERROR\| \
95	CREG_STAT_TXLERR\|CREG_STAT_TXPERR\|CREG_STAT_TXSERR\| \
96	CREG_STAT_RCCOFLOW\|CREG_STAT_RUOFLOW\|CREG_STAT_MCOFLOW\| \
97	CREG_STAT_RXFOFLOW\|CREG_STAT_RLCOLL\|CREG_STAT_FCOFLOW\| \
98	CREG_STAT_CECOFLOW\|CREG_STAT_RXDROP\|CREG_STAT_RXSMALL\| \
99	CREG_STAT_RXLERR\|CREG_STAT_RXPERR\|CREG_STAT_RXSERR)
100
101	#define CREG_QMASK_COFLOW 0x00100000 /* CollCntr overflow */
102	#define CREG_QMASK_TXDERROR 0x00080000 /* TXD error */
103	#define CREG_QMASK_TXLERR 0x00040000 /* TX late error */
104	#define CREG_QMASK_TXPERR 0x00020000 /* TX parity error */
105	#define CREG_QMASK_TXSERR 0x00010000 /* TX sbus error ack */
106	#define CREG_QMASK_RXDROP 0x00000010 /* RX drop */
107	#define CREG_QMASK_RXBERROR 0x00000008 /* RX buffer error */
108	#define CREG_QMASK_RXLEERR 0x00000004 /* RX late error */
109	#define CREG_QMASK_RXPERR 0x00000002 /* RX parity error */
110	#define CREG_QMASK_RXSERR 0x00000001 /* RX sbus error ack */
111
112	#define CREG_MMASK_EDEFER 0x10000000 /* Excess defer */
113	#define CREG_MMASK_CLOSS 0x08000000 /* Carrier loss */
114	#define CREG_MMASK_ERETRY 0x04000000 /* Excess retry */
115	#define CREG_MMASK_LCOLL 0x02000000 /* Late collision error */
116	#define CREG_MMASK_UFLOW 0x01000000 /* Underflow */
117	#define CREG_MMASK_JABBER 0x00800000 /* Jabber error */
118	#define CREG_MMASK_BABBLE 0x00400000 /* Babble error */
119	#define CREG_MMASK_OFLOW 0x00000800 /* Overflow */
120	#define CREG_MMASK_RXCOLL 0x00000400 /* RX Coll-Cntr overflow */
121	#define CREG_MMASK_RPKT 0x00000200 /* Runt pkt overflow */
122	#define CREG_MMASK_MPKT 0x00000100 /* Missed pkt overflow */
123
124	#define CREG_PIPG_TENAB 0x00000020 /* Enable Throttle */
125	#define CREG_PIPG_MMODE 0x00000010 /* Manual Mode */
126	#define CREG_PIPG_WMASK 0x0000000f /* SBUS Wait Mask */
127
128	/* Per-channel AMD 79C940 MACE registers. */
129	#define MREGS_RXFIFO 0x00UL /* Receive FIFO */
130	#define MREGS_TXFIFO 0x01UL /* Transmit FIFO */
131	#define MREGS_TXFCNTL 0x02UL /* Transmit Frame Control */
132	#define MREGS_TXFSTAT 0x03UL /* Transmit Frame Status */
133	#define MREGS_TXRCNT 0x04UL /* Transmit Retry Count */
134	#define MREGS_RXFCNTL 0x05UL /* Receive Frame Control */
135	#define MREGS_RXFSTAT 0x06UL /* Receive Frame Status */
136	#define MREGS_FFCNT 0x07UL /* FIFO Frame Count */
137	#define MREGS_IREG 0x08UL /* Interrupt Register */
138	#define MREGS_IMASK 0x09UL /* Interrupt Mask */
139	#define MREGS_POLL 0x0aUL /* POLL Register */
140	#define MREGS_BCONFIG 0x0bUL /* BIU Config */
141	#define MREGS_FCONFIG 0x0cUL /* FIFO Config */
142	#define MREGS_MCONFIG 0x0dUL /* MAC Config */
143	#define MREGS_PLSCONFIG 0x0eUL /* PLS Config */
144	#define MREGS_PHYCONFIG 0x0fUL /* PHY Config */
145	#define MREGS_CHIPID1 0x10UL /* Chip-ID, low bits */
146	#define MREGS_CHIPID2 0x11UL /* Chip-ID, high bits */
147	#define MREGS_IACONFIG 0x12UL /* Internal Address Config */
148	/* 0x13UL, reserved */
149	#define MREGS_FILTER 0x14UL /* Logical Address Filter */
150	#define MREGS_ETHADDR 0x15UL /* Our Ethernet Address */
151	/* 0x16UL, reserved */
152	/* 0x17UL, reserved */
153	#define MREGS_MPCNT 0x18UL /* Missed Packet Count */
154	/* 0x19UL, reserved */
155	#define MREGS_RPCNT 0x1aUL /* Runt Packet Count */
156	#define MREGS_RCCNT 0x1bUL /* RX Collision Count */
157	/* 0x1cUL, reserved */
158	#define MREGS_UTEST 0x1dUL /* User Test */
159	#define MREGS_RTEST1 0x1eUL /* Reserved Test 1 */
160	#define MREGS_RTEST2 0x1fUL /* Reserved Test 2 */
161	#define MREGS_REG_SIZE 0x20UL
162
163	#define MREGS_TXFCNTL_DRETRY 0x80 /* Retry disable */
164	#define MREGS_TXFCNTL_DFCS 0x08 /* Disable TX FCS */
165	#define MREGS_TXFCNTL_AUTOPAD 0x01 /* TX auto pad */
166
167	#define MREGS_TXFSTAT_VALID 0x80 /* TX valid */
168	#define MREGS_TXFSTAT_UNDERFLOW 0x40 /* TX underflow */
169	#define MREGS_TXFSTAT_LCOLL 0x20 /* TX late collision */
170	#define MREGS_TXFSTAT_MRETRY 0x10 /* TX > 1 retries */
171	#define MREGS_TXFSTAT_ORETRY 0x08 /* TX 1 retry */
172	#define MREGS_TXFSTAT_PDEFER 0x04 /* TX pkt deferred */
173	#define MREGS_TXFSTAT_CLOSS 0x02 /* TX carrier lost */
174	#define MREGS_TXFSTAT_RERROR 0x01 /* TX retry error */
175
176	#define MREGS_TXRCNT_EDEFER 0x80 /* TX Excess defers */
177	#define MREGS_TXRCNT_CMASK 0x0f /* TX retry count */
178
179	#define MREGS_RXFCNTL_LOWLAT 0x08 /* RX low latency */
180	#define MREGS_RXFCNTL_AREJECT 0x04 /* RX addr match rej */
181	#define MREGS_RXFCNTL_AUTOSTRIP 0x01 /* RX auto strip */
182
183	#define MREGS_RXFSTAT_OVERFLOW 0x80 /* RX overflow */
184	#define MREGS_RXFSTAT_LCOLL 0x40 /* RX late collision */
185	#define MREGS_RXFSTAT_FERROR 0x20 /* RX framing error */
186	#define MREGS_RXFSTAT_FCSERROR 0x10 /* RX FCS error */
187	#define MREGS_RXFSTAT_RBCNT 0x0f /* RX msg byte count */
188
189	#define MREGS_FFCNT_RX 0xf0 /* RX FIFO frame cnt */
190	#define MREGS_FFCNT_TX 0x0f /* TX FIFO frame cnt */
191
192	#define MREGS_IREG_JABBER 0x80 /* IRQ Jabber error */
193	#define MREGS_IREG_BABBLE 0x40 /* IRQ Babble error */
194	#define MREGS_IREG_COLL 0x20 /* IRQ Collision error */
195	#define MREGS_IREG_RCCO 0x10 /* IRQ Collision cnt overflow */
196	#define MREGS_IREG_RPKTCO 0x08 /* IRQ Runt packet count overflow */
197	#define MREGS_IREG_MPKTCO 0x04 /* IRQ missed packet cnt overflow */
198	#define MREGS_IREG_RXIRQ 0x02 /* IRQ RX'd a packet */
199	#define MREGS_IREG_TXIRQ 0x01 /* IRQ TX'd a packet */
200
201	#define MREGS_IMASK_BABBLE 0x40 /* IMASK Babble errors */
202	#define MREGS_IMASK_COLL 0x20 /* IMASK Collision errors */
203	#define MREGS_IMASK_MPKTCO 0x04 /* IMASK Missed pkt cnt overflow */
204	#define MREGS_IMASK_RXIRQ 0x02 /* IMASK RX interrupts */
205	#define MREGS_IMASK_TXIRQ 0x01 /* IMASK TX interrupts */
206
207	#define MREGS_POLL_TXVALID 0x80 /* TX is valid */
208	#define MREGS_POLL_TDTR 0x40 /* TX data transfer request */
209	#define MREGS_POLL_RDTR 0x20 /* RX data transfer request */
210
211	#define MREGS_BCONFIG_BSWAP 0x40 /* Byte Swap */
212	#define MREGS_BCONFIG_4TS 0x00 /* 4byte transmit start point */
213	#define MREGS_BCONFIG_16TS 0x10 /* 16byte transmit start point */
214	#define MREGS_BCONFIG_64TS 0x20 /* 64byte transmit start point */
215	#define MREGS_BCONFIG_112TS 0x30 /* 112byte transmit start point */
216	#define MREGS_BCONFIG_RESET 0x01 /* SW-Reset the MACE */
217
218	#define MREGS_FCONFIG_TXF8 0x00 /* TX fifo 8 write cycles */
219	#define MREGS_FCONFIG_TXF32 0x80 /* TX fifo 32 write cycles */
220	#define MREGS_FCONFIG_TXF16 0x40 /* TX fifo 16 write cycles */
221	#define MREGS_FCONFIG_RXF64 0x20 /* RX fifo 64 write cycles */
222	#define MREGS_FCONFIG_RXF32 0x10 /* RX fifo 32 write cycles */
223	#define MREGS_FCONFIG_RXF16 0x00 /* RX fifo 16 write cycles */
224	#define MREGS_FCONFIG_TFWU 0x08 /* TX fifo watermark update */
225	#define MREGS_FCONFIG_RFWU 0x04 /* RX fifo watermark update */
226	#define MREGS_FCONFIG_TBENAB 0x02 /* TX burst enable */
227	#define MREGS_FCONFIG_RBENAB 0x01 /* RX burst enable */
228
229	#define MREGS_MCONFIG_PROMISC 0x80 /* Promiscuous mode enable */
230	#define MREGS_MCONFIG_TPDDISAB 0x40 /* TX 2part deferral enable */
231	#define MREGS_MCONFIG_MBAENAB 0x20 /* Modified backoff enable */
232	#define MREGS_MCONFIG_RPADISAB 0x08 /* RX physical addr disable */
233	#define MREGS_MCONFIG_RBDISAB 0x04 /* RX broadcast disable */
234	#define MREGS_MCONFIG_TXENAB 0x02 /* Enable transmitter */
235	#define MREGS_MCONFIG_RXENAB 0x01 /* Enable receiver */
236
237	#define MREGS_PLSCONFIG_TXMS 0x08 /* TX mode select */
238	#define MREGS_PLSCONFIG_GPSI 0x06 /* Use GPSI connector */
239	#define MREGS_PLSCONFIG_DAI 0x04 /* Use DAI connector */
240	#define MREGS_PLSCONFIG_TP 0x02 /* Use TwistedPair connector */
241	#define MREGS_PLSCONFIG_AUI 0x00 /* Use AUI connector */
242	#define MREGS_PLSCONFIG_IOENAB 0x01 /* PLS I/O enable */
243
244	#define MREGS_PHYCONFIG_LSTAT 0x80 /* Link status */
245	#define MREGS_PHYCONFIG_LTESTDIS 0x40 /* Disable link test logic */
246	#define MREGS_PHYCONFIG_RXPOLARITY 0x20 /* RX polarity */
247	#define MREGS_PHYCONFIG_APCDISAB 0x10 /* AutoPolarityCorrect disab */
248	#define MREGS_PHYCONFIG_LTENAB 0x08 /* Select low threshold */
249	#define MREGS_PHYCONFIG_AUTO 0x04 /* Connector port auto-sel */
250	#define MREGS_PHYCONFIG_RWU 0x02 /* Remote WakeUp */
251	#define MREGS_PHYCONFIG_AW 0x01 /* Auto Wakeup */
252
253	#define MREGS_IACONFIG_ACHNGE 0x80 /* Do address change */
254	#define MREGS_IACONFIG_PARESET 0x04 /* Physical address reset */
255	#define MREGS_IACONFIG_LARESET 0x02 /* Logical address reset */
256
257	#define MREGS_UTEST_RTRENAB 0x80 /* Enable resv test register */
258	#define MREGS_UTEST_RTRDISAB 0x40 /* Disab resv test register */
259	#define MREGS_UTEST_RPACCEPT 0x20 /* Accept runt packets */
260	#define MREGS_UTEST_FCOLL 0x10 /* Force collision status */
261	#define MREGS_UTEST_FCSENAB 0x08 /* Enable FCS on RX */
262	#define MREGS_UTEST_INTLOOPM 0x06 /* Intern lpback w/MENDEC */
263	#define MREGS_UTEST_INTLOOP 0x04 /* Intern lpback */
264	#define MREGS_UTEST_EXTLOOP 0x02 /* Extern lpback */
265	#define MREGS_UTEST_NOLOOP 0x00 /* No loopback */
266
267	struct qe_rxd {
268	u32 rx_flags;
269	u32 rx_addr;
270	};
271
272	#define RXD_OWN 0x80000000 /* Ownership. */
273	#define RXD_UPDATE 0x10000000 /* Being Updated? */
274	#define RXD_LENGTH 0x000007ff /* Packet Length. */
275
276	struct qe_txd {
277	u32 tx_flags;
278	u32 tx_addr;
279	};
280
281	#define TXD_OWN 0x80000000 /* Ownership. */
282	#define TXD_SOP 0x40000000 /* Start Of Packet */
283	#define TXD_EOP 0x20000000 /* End Of Packet */
284	#define TXD_UPDATE 0x10000000 /* Being Updated? */
285	#define TXD_LENGTH 0x000007ff /* Packet Length. */
286
287	#define TX_RING_MAXSIZE 256
288	#define RX_RING_MAXSIZE 256
289
290	#define TX_RING_SIZE 16
291	#define RX_RING_SIZE 16
292
293	#define NEXT_RX(num) (((num) + 1) & (RX_RING_MAXSIZE - 1))
294	#define NEXT_TX(num) (((num) + 1) & (TX_RING_MAXSIZE - 1))
295	#define PREV_RX(num) (((num) - 1) & (RX_RING_MAXSIZE - 1))
296	#define PREV_TX(num) (((num) - 1) & (TX_RING_MAXSIZE - 1))
297
298	#define TX_BUFFS_AVAIL(qp) \
299	(((qp)->tx_old <= (qp)->tx_new) ? \
300	(qp)->tx_old + (TX_RING_SIZE - 1) - (qp)->tx_new : \
301	(qp)->tx_old - (qp)->tx_new - 1)
302
303	struct qe_init_block {
304	struct qe_rxd qe_rxd[RX_RING_MAXSIZE];
305	struct qe_txd qe_txd[TX_RING_MAXSIZE];
306	};
307
308	#define qib_offset(mem, elem) \
309	((__u32)((unsigned long)(&(((struct qe_init_block *)0)->mem[elem]))))
310
311	struct sunqe;
312
313	struct sunqec {
314	void __iomem gregs; / QEC Global Registers */
315	struct sunqe qes[4]; / Each child MACE */
316	unsigned int qec_bursts; /* Support burst sizes */
317	struct sbus_dev qec_sdev; / QEC's SBUS device */
318	struct sunqec next_module; / List of all QECs in system */
319	};
320
321	#define PKT_BUF_SZ 1664
322	#define RXD_PKT_SZ 1664
323
324	struct sunqe_buffers {
325	u8 tx_buf[TX_RING_SIZE][PKT_BUF_SZ];
326	u8 __pad[2];
327	u8 rx_buf[RX_RING_SIZE][PKT_BUF_SZ];
328	};
329
330	#define qebuf_offset(mem, elem) \
331	((__u32)((unsigned long)(&(((struct sunqe_buffers *)0)->mem[elem][0]))))
332
333	struct sunqe {
334	void __iomem qcregs; / QEC per-channel Registers */
335	void __iomem mregs; / Per-channel MACE Registers */
336	struct qe_init_block qe_block; / RX and TX descriptors */
337	__u32 qblock_dvma; /* RX and TX descriptors */
338	spinlock_t lock; /* Protects txfull state */
339	int rx_new, rx_old; /* RX ring extents */
340	int tx_new, tx_old; /* TX ring extents */
341	struct sunqe_buffers buffers; / CPU visible address. */
342	__u32 buffers_dvma; /* DVMA visible address. */
343	struct sunqec *parent;
344	u8 mconfig; /* Base MACE mconfig value */
345	struct net_device_stats net_stats; /* Statistical counters */
346	struct sbus_dev qe_sdev; / QE's SBUS device struct */
347	struct net_device dev; / QE's netdevice struct */
348	int channel; /* Who am I? */
349	};
350
351	#endif /* !(_SUNQE_H) */