diff options
Diffstat (limited to 'drivers/net/ethernet/sun/sunqe.h')
| -rw-r--r-- | drivers/net/ethernet/sun/sunqe.h | 351 |
1 files changed, 351 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sun/sunqe.h b/drivers/net/ethernet/sun/sunqe.h new file mode 100644 index 000000000..0daed05b7 --- /dev/null +++ b/drivers/net/ethernet/sun/sunqe.h @@ -0,0 +1,351 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* $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 (davem@caip.rutgers.edu) + */ + +#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 platform_device *op; /* QEC's OF 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 */ + dma_addr_t 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. */ + dma_addr_t buffers_dvma; /* DVMA visible address. */ + struct sunqec *parent; + u8 mconfig; /* Base MACE mconfig value */ + struct platform_device *op; /* QE's OF device struct */ + struct net_device *dev; /* QE's netdevice struct */ + int channel; /* Who am I? */ +}; + +#endif /* !(_SUNQE_H) */ |