Release 4.7 drivers/net/ethernet/sun/sunbmac.h
/* $Id: sunbmac.h,v 1.7 2000/07/11 22:35:22 davem Exp $
* sunbmac.h: Defines for the Sun "Big MAC" 100baseT ethernet cards.
*
* Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
*/
#ifndef _SUNBMAC_H
#define _SUNBMAC_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-mem size (64K) */
#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 */
/* QEC BigMAC channel registers. */
#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_BMASK 0x1cUL
/* BigMAC 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_REG_SIZE 0x34UL
#define CREG_CTRL_TWAKEUP 0x00000001
/* Transmitter Wakeup, 'go'. */
#define CREG_STAT_BERROR 0x80000000
/* BigMAC error */
#define CREG_STAT_TXIRQ 0x00200000
/* Transmit Interrupt */
#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_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_BERROR|CREG_STAT_TXDERROR|CREG_STAT_TXLERR| \
CREG_STAT_TXPERR|CREG_STAT_TXSERR|CREG_STAT_RXDROP| \
CREG_STAT_RXSMALL|CREG_STAT_RXLERR|CREG_STAT_RXPERR| \
CREG_STAT_RXSERR)
#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 */
/* BIGMAC core registers */
#define BMAC_XIFCFG 0x000UL
/* XIF config register */
/* 0x004-->0x0fc, reserved */
#define BMAC_STATUS 0x100UL
/* Status register, clear on read */
#define BMAC_IMASK 0x104UL
/* Interrupt mask register */
/* 0x108-->0x204, reserved */
#define BMAC_TXSWRESET 0x208UL
/* Transmitter software reset */
#define BMAC_TXCFG 0x20cUL
/* Transmitter config register */
#define BMAC_IGAP1 0x210UL
/* Inter-packet gap 1 */
#define BMAC_IGAP2 0x214UL
/* Inter-packet gap 2 */
#define BMAC_ALIMIT 0x218UL
/* Transmit attempt limit */
#define BMAC_STIME 0x21cUL
/* Transmit slot time */
#define BMAC_PLEN 0x220UL
/* Size of transmit preamble */
#define BMAC_PPAT 0x224UL
/* Pattern for transmit preamble */
#define BMAC_TXDELIM 0x228UL
/* Transmit delimiter */
#define BMAC_JSIZE 0x22cUL
/* Toe jam... */
#define BMAC_TXPMAX 0x230UL
/* Transmit max pkt size */
#define BMAC_TXPMIN 0x234UL
/* Transmit min pkt size */
#define BMAC_PATTEMPT 0x238UL
/* Count of transmit peak attempts */
#define BMAC_DTCTR 0x23cUL
/* Transmit defer timer */
#define BMAC_NCCTR 0x240UL
/* Transmit normal-collision counter */
#define BMAC_FCCTR 0x244UL
/* Transmit first-collision counter */
#define BMAC_EXCTR 0x248UL
/* Transmit excess-collision counter */
#define BMAC_LTCTR 0x24cUL
/* Transmit late-collision counter */
#define BMAC_RSEED 0x250UL
/* Transmit random number seed */
#define BMAC_TXSMACHINE 0x254UL
/* Transmit state machine */
/* 0x258-->0x304, reserved */
#define BMAC_RXSWRESET 0x308UL
/* Receiver software reset */
#define BMAC_RXCFG 0x30cUL
/* Receiver config register */
#define BMAC_RXPMAX 0x310UL
/* Receive max pkt size */
#define BMAC_RXPMIN 0x314UL
/* Receive min pkt size */
#define BMAC_MACADDR2 0x318UL
/* Ether address register 2 */
#define BMAC_MACADDR1 0x31cUL
/* Ether address register 1 */
#define BMAC_MACADDR0 0x320UL
/* Ether address register 0 */
#define BMAC_FRCTR 0x324UL
/* Receive frame receive counter */
#define BMAC_GLECTR 0x328UL
/* Receive giant-length error counter */
#define BMAC_UNALECTR 0x32cUL
/* Receive unaligned error counter */
#define BMAC_RCRCECTR 0x330UL
/* Receive CRC error counter */
#define BMAC_RXSMACHINE 0x334UL
/* Receiver state machine */
#define BMAC_RXCVALID 0x338UL
/* Receiver code violation */
/* 0x33c, reserved */
#define BMAC_HTABLE3 0x340UL
/* Hash table 3 */
#define BMAC_HTABLE2 0x344UL
/* Hash table 2 */
#define BMAC_HTABLE1 0x348UL
/* Hash table 1 */
#define BMAC_HTABLE0 0x34cUL
/* Hash table 0 */
#define BMAC_AFILTER2 0x350UL
/* Address filter 2 */
#define BMAC_AFILTER1 0x354UL
/* Address filter 1 */
#define BMAC_AFILTER0 0x358UL
/* Address filter 0 */
#define BMAC_AFMASK 0x35cUL
/* Address filter mask */
#define BMAC_REG_SIZE 0x360UL
/* BigMac XIF config register. */
#define BIGMAC_XCFG_ODENABLE 0x00000001
/* Output driver enable */
#define BIGMAC_XCFG_RESV 0x00000002
/* Reserved, write always as 1 */
#define BIGMAC_XCFG_MLBACK 0x00000004
/* Loopback-mode MII enable */
#define BIGMAC_XCFG_SMODE 0x00000008
/* Enable serial mode */
/* BigMAC status register. */
#define BIGMAC_STAT_GOTFRAME 0x00000001
/* Received a frame */
#define BIGMAC_STAT_RCNTEXP 0x00000002
/* Receive frame counter expired */
#define BIGMAC_STAT_ACNTEXP 0x00000004
/* Align-error counter expired */
#define BIGMAC_STAT_CCNTEXP 0x00000008
/* CRC-error counter expired */
#define BIGMAC_STAT_LCNTEXP 0x00000010
/* Length-error counter expired */
#define BIGMAC_STAT_RFIFOVF 0x00000020
/* Receive FIFO overflow */
#define BIGMAC_STAT_CVCNTEXP 0x00000040
/* Code-violation counter expired */
#define BIGMAC_STAT_SENTFRAME 0x00000100
/* Transmitted a frame */
#define BIGMAC_STAT_TFIFO_UND 0x00000200
/* Transmit FIFO underrun */
#define BIGMAC_STAT_MAXPKTERR 0x00000400
/* Max-packet size error */
#define BIGMAC_STAT_NCNTEXP 0x00000800
/* Normal-collision counter expired */
#define BIGMAC_STAT_ECNTEXP 0x00001000
/* Excess-collision counter expired */
#define BIGMAC_STAT_LCCNTEXP 0x00002000
/* Late-collision counter expired */
#define BIGMAC_STAT_FCNTEXP 0x00004000
/* First-collision counter expired */
#define BIGMAC_STAT_DTIMEXP 0x00008000
/* Defer-timer expired */
/* BigMAC interrupt mask register. */
#define BIGMAC_IMASK_GOTFRAME 0x00000001
/* Received a frame */
#define BIGMAC_IMASK_RCNTEXP 0x00000002
/* Receive frame counter expired */
#define BIGMAC_IMASK_ACNTEXP 0x00000004
/* Align-error counter expired */
#define BIGMAC_IMASK_CCNTEXP 0x00000008
/* CRC-error counter expired */
#define BIGMAC_IMASK_LCNTEXP 0x00000010
/* Length-error counter expired */
#define BIGMAC_IMASK_RFIFOVF 0x00000020
/* Receive FIFO overflow */
#define BIGMAC_IMASK_CVCNTEXP 0x00000040
/* Code-violation counter expired */
#define BIGMAC_IMASK_SENTFRAME 0x00000100
/* Transmitted a frame */
#define BIGMAC_IMASK_TFIFO_UND 0x00000200
/* Transmit FIFO underrun */
#define BIGMAC_IMASK_MAXPKTERR 0x00000400
/* Max-packet size error */
#define BIGMAC_IMASK_NCNTEXP 0x00000800
/* Normal-collision counter expired */
#define BIGMAC_IMASK_ECNTEXP 0x00001000
/* Excess-collision counter expired */
#define BIGMAC_IMASK_LCCNTEXP 0x00002000
/* Late-collision counter expired */
#define BIGMAC_IMASK_FCNTEXP 0x00004000
/* First-collision counter expired */
#define BIGMAC_IMASK_DTIMEXP 0x00008000
/* Defer-timer expired */
/* BigMac transmit config register. */
#define BIGMAC_TXCFG_ENABLE 0x00000001
/* Enable the transmitter */
#define BIGMAC_TXCFG_FIFO 0x00000010
/* Default tx fthresh... */
#define BIGMAC_TXCFG_SMODE 0x00000020
/* Enable slow transmit mode */
#define BIGMAC_TXCFG_CIGN 0x00000040
/* Ignore transmit collisions */
#define BIGMAC_TXCFG_FCSOFF 0x00000080
/* Do not emit FCS */
#define BIGMAC_TXCFG_DBACKOFF 0x00000100
/* Disable backoff */
#define BIGMAC_TXCFG_FULLDPLX 0x00000200
/* Enable full-duplex */
/* BigMac receive config register. */
#define BIGMAC_RXCFG_ENABLE 0x00000001
/* Enable the receiver */
#define BIGMAC_RXCFG_FIFO 0x0000000e
/* Default rx fthresh... */
#define BIGMAC_RXCFG_PSTRIP 0x00000020
/* Pad byte strip enable */
#define BIGMAC_RXCFG_PMISC 0x00000040
/* Enable promiscuous mode */
#define BIGMAC_RXCFG_DERR 0x00000080
/* Disable error checking */
#define BIGMAC_RXCFG_DCRCS 0x00000100
/* Disable CRC stripping */
#define BIGMAC_RXCFG_ME 0x00000200
/* Receive packets addressed to me */
#define BIGMAC_RXCFG_PGRP 0x00000400
/* Enable promisc group mode */
#define BIGMAC_RXCFG_HENABLE 0x00000800
/* Enable the hash filter */
#define BIGMAC_RXCFG_AENABLE 0x00001000
/* Enable the address filter */
/* The BigMAC PHY transceiver. Not nearly as sophisticated as the happy meal
* one. But it does have the "bit banger", oh baby.
*/
#define TCVR_TPAL 0x00UL
#define TCVR_MPAL 0x04UL
#define TCVR_REG_SIZE 0x08UL
/* Frame commands. */
#define FRAME_WRITE 0x50020000
#define FRAME_READ 0x60020000
/* Tranceiver registers. */
#define TCVR_PAL_SERIAL 0x00000001
/* Enable serial mode */
#define TCVR_PAL_EXTLBACK 0x00000002
/* Enable external loopback */
#define TCVR_PAL_MSENSE 0x00000004
/* Media sense */
#define TCVR_PAL_LTENABLE 0x00000008
/* Link test enable */
#define TCVR_PAL_LTSTATUS 0x00000010
/* Link test status (P1 only) */
/* Management PAL. */
#define MGMT_PAL_DCLOCK 0x00000001
/* Data clock */
#define MGMT_PAL_OENAB 0x00000002
/* Output enabler */
#define MGMT_PAL_MDIO 0x00000004
/* MDIO Data/attached */
#define MGMT_PAL_TIMEO 0x00000008
/* Transmit enable timeout error */
#define MGMT_PAL_EXT_MDIO MGMT_PAL_MDIO
#define MGMT_PAL_INT_MDIO MGMT_PAL_TIMEO
/* Here are some PHY addresses. */
#define BIGMAC_PHY_EXTERNAL 0
/* External transceiver */
#define BIGMAC_PHY_INTERNAL 1
/* Internal transceiver */
/* Ring descriptors and such, same as Quad Ethernet. */
struct be_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 be_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 256
#define RX_RING_SIZE 256
#define NEXT_RX(num) (((num) + 1) & (RX_RING_SIZE - 1))
#define NEXT_TX(num) (((num) + 1) & (TX_RING_SIZE - 1))
#define PREV_RX(num) (((num) - 1) & (RX_RING_SIZE - 1))
#define PREV_TX(num) (((num) - 1) & (TX_RING_SIZE - 1))
#define TX_BUFFS_AVAIL(bp) \
(((bp)->tx_old <= (bp)->tx_new) ? \
(bp)->tx_old + (TX_RING_SIZE - 1) - (bp)->tx_new : \
(bp)->tx_old - (bp)->tx_new - 1)
#define RX_COPY_THRESHOLD 256
#define RX_BUF_ALLOC_SIZE (ETH_FRAME_LEN + (64 * 3))
struct bmac_init_block {
struct be_rxd be_rxd[RX_RING_MAXSIZE];
struct be_txd be_txd[TX_RING_MAXSIZE];
};
#define bib_offset(mem, elem) \
((__u32)((unsigned long)(&(((struct bmac_init_block *)0)->mem[elem]))))
/* Now software state stuff. */
enum bigmac_transceiver {
external = 0,
internal = 1,
none = 2,
};
/* Timer state engine. */
enum bigmac_timer_state {
ltrywait = 1, /* Forcing try of all modes, from fastest to slowest. */
asleep = 2, /* Timer inactive. */
};
struct bigmac {
void __iomem *gregs; /* QEC Global Registers */
void __iomem *creg; /* QEC BigMAC Channel Registers */
void __iomem *bregs; /* BigMAC Registers */
void __iomem *tregs; /* BigMAC Transceiver */
struct bmac_init_block *bmac_block; /* RX and TX descriptors */
__u32 bblock_dvma; /* RX and TX descriptors */
spinlock_t lock;
struct sk_buff *rx_skbs[RX_RING_SIZE];
struct sk_buff *tx_skbs[TX_RING_SIZE];
int rx_new, tx_new, rx_old, tx_old;
int board_rev; /* BigMAC board revision. */
enum bigmac_transceiver tcvr_type;
unsigned int bigmac_bursts;
unsigned int paddr;
unsigned short sw_bmsr; /* SW copy of PHY BMSR */
unsigned short sw_bmcr; /* SW copy of PHY BMCR */
struct timer_list bigmac_timer;
enum bigmac_timer_state timer_state;
unsigned int timer_ticks;
struct net_device_stats enet_stats;
struct platform_device *qec_op;
struct platform_device *bigmac_op;
struct net_device *dev;
};
/* We use this to acquire receive skb's that we can DMA directly into. */
#define ALIGNED_RX_SKB_ADDR(addr) \
((((unsigned long)(addr) + (64 - 1)) & ~(64 - 1)) - (unsigned long)(addr))
static inline struct sk_buff *big_mac_alloc_skb(unsigned int length, gfp_t gfp_flags)
{
struct sk_buff *skb;
skb = alloc_skb(length + 64, gfp_flags);
if(skb) {
int offset = ALIGNED_RX_SKB_ADDR(skb->data);
if(offset)
skb_reserve(skb, offset);
}
return skb;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| pre-git | pre-git | 61 | 98.39% | 1 | 50.00% |
| al viro | al viro | 1 | 1.61% | 1 | 50.00% |
| Total | 62 | 100.00% | 2 | 100.00% |
#endif /* !(_SUNBMAC_H) */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| pre-git | pre-git | 1248 | 98.58% | 6 | 54.55% |
| david s. miller | david s. miller | 14 | 1.11% | 2 | 18.18% |
| grant likely | grant likely | 2 | 0.16% | 1 | 9.09% |
| al viro | al viro | 1 | 0.08% | 1 | 9.09% |
| lucas de marchi | lucas de marchi | 1 | 0.08% | 1 | 9.09% |
| Total | 1266 | 100.00% | 11 | 100.00% |
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