Merge tag 'for-5.7-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave...

[mirror_ubuntu-jammy-kernel.git] / drivers / net / ethernet / broadcom / b44.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _B44_H
#define _B44_H

#include <linux/brcmphy.h>

/* Register layout. (These correspond to struct _bcmenettregs in bcm4400.) */
#define B44_DEVCTRL     0x0000UL /* Device Control */
#define  DEVCTRL_MPM            0x00000040 /* Magic Packet PME Enable (B0 only) */
#define  DEVCTRL_PFE            0x00000080 /* Pattern Filtering Enable */
#define  DEVCTRL_IPP            0x00000400 /* Internal EPHY Present */
#define  DEVCTRL_EPR            0x00008000 /* EPHY Reset */
#define  DEVCTRL_PME            0x00001000 /* PHY Mode Enable */
#define  DEVCTRL_PMCE           0x00002000 /* PHY Mode Clocks Enable */
#define  DEVCTRL_PADDR          0x0007c000 /* PHY Address */
#define  DEVCTRL_PADDR_SHIFT    18
#define B44_BIST_STAT   0x000CUL /* Built-In Self-Test Status */
#define B44_WKUP_LEN    0x0010UL /* Wakeup Length */
#define  WKUP_LEN_P0_MASK       0x0000007f /* Pattern 0 */
#define  WKUP_LEN_D0            0x00000080
#define  WKUP_LEN_P1_MASK       0x00007f00 /* Pattern 1 */
#define  WKUP_LEN_P1_SHIFT      8
#define  WKUP_LEN_D1            0x00008000
#define  WKUP_LEN_P2_MASK       0x007f0000 /* Pattern 2 */
#define  WKUP_LEN_P2_SHIFT      16
#define  WKUP_LEN_D2            0x00000000
#define  WKUP_LEN_P3_MASK       0x7f000000 /* Pattern 3 */
#define  WKUP_LEN_P3_SHIFT      24
#define  WKUP_LEN_D3            0x80000000
#define  WKUP_LEN_DISABLE       0x80808080
#define  WKUP_LEN_ENABLE_TWO    0x80800000
#define  WKUP_LEN_ENABLE_THREE  0x80000000
#define B44_ISTAT       0x0020UL /* Interrupt Status */
#define  ISTAT_LS               0x00000020 /* Link Change (B0 only) */
#define  ISTAT_PME              0x00000040 /* Power Management Event */
#define  ISTAT_TO               0x00000080 /* General Purpose Timeout */
#define  ISTAT_DSCE             0x00000400 /* Descriptor Error */
#define  ISTAT_DATAE            0x00000800 /* Data Error */
#define  ISTAT_DPE              0x00001000 /* Descr. Protocol Error */
#define  ISTAT_RDU              0x00002000 /* Receive Descr. Underflow */
#define  ISTAT_RFO              0x00004000 /* Receive FIFO Overflow */
#define  ISTAT_TFU              0x00008000 /* Transmit FIFO Underflow */
#define  ISTAT_RX               0x00010000 /* RX Interrupt */
#define  ISTAT_TX               0x01000000 /* TX Interrupt */
#define  ISTAT_EMAC             0x04000000 /* EMAC Interrupt */
#define  ISTAT_MII_WRITE        0x08000000 /* MII Write Interrupt */
#define  ISTAT_MII_READ         0x10000000 /* MII Read Interrupt */
#define  ISTAT_ERRORS (ISTAT_DSCE|ISTAT_DATAE|ISTAT_DPE|ISTAT_RDU|ISTAT_RFO|ISTAT_TFU)
#define B44_IMASK       0x0024UL /* Interrupt Mask */
#define  IMASK_DEF              (ISTAT_ERRORS | ISTAT_TO | ISTAT_RX | ISTAT_TX)
#define B44_GPTIMER     0x0028UL /* General Purpose Timer */
#define B44_ADDR_LO     0x0088UL /* ENET Address Lo (B0 only) */
#define B44_ADDR_HI     0x008CUL /* ENET Address Hi (B0 only) */
#define B44_FILT_ADDR   0x0090UL /* ENET Filter Address */
#define B44_FILT_DATA   0x0094UL /* ENET Filter Data */
#define B44_TXBURST     0x00A0UL /* TX Max Burst Length */
#define B44_RXBURST     0x00A4UL /* RX Max Burst Length */
#define B44_MAC_CTRL    0x00A8UL /* MAC Control */
#define  MAC_CTRL_CRC32_ENAB    0x00000001 /* CRC32 Generation Enable */
#define  MAC_CTRL_PHY_PDOWN     0x00000004 /* Onchip EPHY Powerdown */
#define  MAC_CTRL_PHY_EDET      0x00000008 /* Onchip EPHY Energy Detected */
#define  MAC_CTRL_PHY_LEDCTRL   0x000000e0 /* Onchip EPHY LED Control */
#define  MAC_CTRL_PHY_LEDCTRL_SHIFT 5
#define B44_MAC_FLOW    0x00ACUL /* MAC Flow Control */
#define  MAC_FLOW_RX_HI_WATER   0x000000ff /* Receive FIFO HI Water Mark */
#define  MAC_FLOW_PAUSE_ENAB    0x00008000 /* Enable Pause Frame Generation */
#define B44_RCV_LAZY    0x0100UL /* Lazy Interrupt Control */
#define  RCV_LAZY_TO_MASK       0x00ffffff /* Timeout */
#define  RCV_LAZY_FC_MASK       0xff000000 /* Frame Count */
#define  RCV_LAZY_FC_SHIFT      24
#define B44_DMATX_CTRL  0x0200UL /* DMA TX Control */
#define  DMATX_CTRL_ENABLE      0x00000001 /* Enable */
#define  DMATX_CTRL_SUSPEND     0x00000002 /* Suepend Request */
#define  DMATX_CTRL_LPBACK      0x00000004 /* Loopback Enable */
#define  DMATX_CTRL_FAIRPRIOR   0x00000008 /* Fair Priority */
#define  DMATX_CTRL_FLUSH       0x00000010 /* Flush Request */
#define B44_DMATX_ADDR  0x0204UL /* DMA TX Descriptor Ring Address */
#define B44_DMATX_PTR   0x0208UL /* DMA TX Last Posted Descriptor */
#define B44_DMATX_STAT  0x020CUL /* DMA TX Current Active Desc. + Status */
#define  DMATX_STAT_CDMASK      0x00000fff /* Current Descriptor Mask */
#define  DMATX_STAT_SMASK       0x0000f000 /* State Mask */
#define  DMATX_STAT_SDISABLED   0x00000000 /* State Disabled */
#define  DMATX_STAT_SACTIVE     0x00001000 /* State Active */
#define  DMATX_STAT_SIDLE       0x00002000 /* State Idle Wait */
#define  DMATX_STAT_SSTOPPED    0x00003000 /* State Stopped */
#define  DMATX_STAT_SSUSP       0x00004000 /* State Suspend Pending */
#define  DMATX_STAT_EMASK       0x000f0000 /* Error Mask */
#define  DMATX_STAT_ENONE       0x00000000 /* Error None */
#define  DMATX_STAT_EDPE        0x00010000 /* Error Desc. Protocol Error */
#define  DMATX_STAT_EDFU        0x00020000 /* Error Data FIFO Underrun */
#define  DMATX_STAT_EBEBR       0x00030000 /* Error Bus Error on Buffer Read */
#define  DMATX_STAT_EBEDA       0x00040000 /* Error Bus Error on Desc. Access */
#define  DMATX_STAT_FLUSHED     0x00100000 /* Flushed */
#define B44_DMARX_CTRL  0x0210UL /* DMA RX Control */
#define  DMARX_CTRL_ENABLE      0x00000001 /* Enable */
#define  DMARX_CTRL_ROMASK      0x000000fe /* Receive Offset Mask */
#define  DMARX_CTRL_ROSHIFT     1          /* Receive Offset Shift */
#define B44_DMARX_ADDR  0x0214UL /* DMA RX Descriptor Ring Address */
#define B44_DMARX_PTR   0x0218UL /* DMA RX Last Posted Descriptor */
#define B44_DMARX_STAT  0x021CUL /* DMA RX Current Active Desc. + Status */
#define  DMARX_STAT_CDMASK      0x00000fff /* Current Descriptor Mask */
#define  DMARX_STAT_SMASK       0x0000f000 /* State Mask */
#define  DMARX_STAT_SDISABLED   0x00000000 /* State Disabled */
#define  DMARX_STAT_SACTIVE     0x00001000 /* State Active */
#define  DMARX_STAT_SIDLE       0x00002000 /* State Idle Wait */
#define  DMARX_STAT_SSTOPPED    0x00003000 /* State Stopped */
#define  DMARX_STAT_EMASK       0x000f0000 /* Error Mask */
#define  DMARX_STAT_ENONE       0x00000000 /* Error None */
#define  DMARX_STAT_EDPE        0x00010000 /* Error Desc. Protocol Error */
#define  DMARX_STAT_EDFO        0x00020000 /* Error Data FIFO Overflow */
#define  DMARX_STAT_EBEBW       0x00030000 /* Error Bus Error on Buffer Write */
#define  DMARX_STAT_EBEDA       0x00040000 /* Error Bus Error on Desc. Access */
#define B44_DMAFIFO_AD  0x0220UL /* DMA FIFO Diag Address */
#define  DMAFIFO_AD_OMASK       0x0000ffff /* Offset Mask */
#define  DMAFIFO_AD_SMASK       0x000f0000 /* Select Mask */
#define  DMAFIFO_AD_SXDD        0x00000000 /* Select Transmit DMA Data */
#define  DMAFIFO_AD_SXDP        0x00010000 /* Select Transmit DMA Pointers */
#define  DMAFIFO_AD_SRDD        0x00040000 /* Select Receive DMA Data */
#define  DMAFIFO_AD_SRDP        0x00050000 /* Select Receive DMA Pointers */
#define  DMAFIFO_AD_SXFD        0x00080000 /* Select Transmit FIFO Data */
#define  DMAFIFO_AD_SXFP        0x00090000 /* Select Transmit FIFO Pointers */
#define  DMAFIFO_AD_SRFD        0x000c0000 /* Select Receive FIFO Data */
#define  DMAFIFO_AD_SRFP        0x000c0000 /* Select Receive FIFO Pointers */
#define B44_DMAFIFO_LO  0x0224UL /* DMA FIFO Diag Low Data */
#define B44_DMAFIFO_HI  0x0228UL /* DMA FIFO Diag High Data */
#define B44_RXCONFIG    0x0400UL /* EMAC RX Config */
#define  RXCONFIG_DBCAST        0x00000001 /* Disable Broadcast */
#define  RXCONFIG_ALLMULTI      0x00000002 /* Accept All Multicast */
#define  RXCONFIG_NORX_WHILE_TX 0x00000004 /* Receive Disable While Transmitting */
#define  RXCONFIG_PROMISC       0x00000008 /* Promiscuous Enable */
#define  RXCONFIG_LPBACK        0x00000010 /* Loopback Enable */
#define  RXCONFIG_FLOW          0x00000020 /* Flow Control Enable */
#define  RXCONFIG_FLOW_ACCEPT   0x00000040 /* Accept Unicast Flow Control Frame */
#define  RXCONFIG_RFILT         0x00000080 /* Reject Filter */
#define  RXCONFIG_CAM_ABSENT    0x00000100 /* CAM Absent */
#define B44_RXMAXLEN    0x0404UL /* EMAC RX Max Packet Length */
#define B44_TXMAXLEN    0x0408UL /* EMAC TX Max Packet Length */
#define B44_MDIO_CTRL   0x0410UL /* EMAC MDIO Control */
#define  MDIO_CTRL_MAXF_MASK    0x0000007f /* MDC Frequency */
#define  MDIO_CTRL_PREAMBLE     0x00000080 /* MII Preamble Enable */
#define B44_MDIO_DATA   0x0414UL /* EMAC MDIO Data */
#define  MDIO_DATA_DATA         0x0000ffff /* R/W Data */
#define  MDIO_DATA_TA_MASK      0x00030000 /* Turnaround Value */
#define  MDIO_DATA_TA_SHIFT     16
#define  MDIO_TA_VALID          2
#define  MDIO_DATA_RA_MASK      0x007c0000 /* Register Address */
#define  MDIO_DATA_RA_SHIFT     18
#define  MDIO_DATA_PMD_MASK     0x0f800000 /* Physical Media Device */
#define  MDIO_DATA_PMD_SHIFT    23
#define  MDIO_DATA_OP_MASK      0x30000000 /* Opcode */
#define  MDIO_DATA_OP_SHIFT     28
#define  MDIO_OP_WRITE          1
#define  MDIO_OP_READ           2
#define  MDIO_DATA_SB_MASK      0xc0000000 /* Start Bits */
#define  MDIO_DATA_SB_SHIFT     30
#define  MDIO_DATA_SB_START     0x40000000 /* Start Of Frame */
#define B44_EMAC_IMASK  0x0418UL /* EMAC Interrupt Mask */
#define B44_EMAC_ISTAT  0x041CUL /* EMAC Interrupt Status */
#define  EMAC_INT_MII           0x00000001 /* MII MDIO Interrupt */
#define  EMAC_INT_MIB           0x00000002 /* MIB Interrupt */
#define  EMAC_INT_FLOW          0x00000003 /* Flow Control Interrupt */
#define B44_CAM_DATA_LO 0x0420UL /* EMAC CAM Data Low */
#define B44_CAM_DATA_HI 0x0424UL /* EMAC CAM Data High */
#define  CAM_DATA_HI_VALID      0x00010000 /* Valid Bit */
#define B44_CAM_CTRL    0x0428UL /* EMAC CAM Control */
#define  CAM_CTRL_ENABLE        0x00000001 /* CAM Enable */
#define  CAM_CTRL_MSEL          0x00000002 /* Mask Select */
#define  CAM_CTRL_READ          0x00000004 /* Read */
#define  CAM_CTRL_WRITE         0x00000008 /* Read */
#define  CAM_CTRL_INDEX_MASK    0x003f0000 /* Index Mask */
#define  CAM_CTRL_INDEX_SHIFT   16
#define  CAM_CTRL_BUSY          0x80000000 /* CAM Busy */
#define B44_ENET_CTRL   0x042CUL /* EMAC ENET Control */
#define  ENET_CTRL_ENABLE       0x00000001 /* EMAC Enable */
#define  ENET_CTRL_DISABLE      0x00000002 /* EMAC Disable */
#define  ENET_CTRL_SRST         0x00000004 /* EMAC Soft Reset */
#define  ENET_CTRL_EPSEL        0x00000008 /* External PHY Select */
#define B44_TX_CTRL     0x0430UL /* EMAC TX Control */
#define  TX_CTRL_DUPLEX         0x00000001 /* Full Duplex */
#define  TX_CTRL_FMODE          0x00000002 /* Flow Mode */
#define  TX_CTRL_SBENAB         0x00000004 /* Single Backoff Enable */
#define  TX_CTRL_SMALL_SLOT     0x00000008 /* Small Slottime */
#define B44_TX_WMARK    0x0434UL /* EMAC TX Watermark */
#define B44_MIB_CTRL    0x0438UL /* EMAC MIB Control */
#define  MIB_CTRL_CLR_ON_READ   0x00000001 /* Autoclear on Read */
#define B44_TX_GOOD_O   0x0500UL /* MIB TX Good Octets */
#define B44_TX_GOOD_P   0x0504UL /* MIB TX Good Packets */
#define B44_TX_O        0x0508UL /* MIB TX Octets */
#define B44_TX_P        0x050CUL /* MIB TX Packets */
#define B44_TX_BCAST    0x0510UL /* MIB TX Broadcast Packets */
#define B44_TX_MCAST    0x0514UL /* MIB TX Multicast Packets */
#define B44_TX_64       0x0518UL /* MIB TX <= 64 byte Packets */
#define B44_TX_65_127   0x051CUL /* MIB TX 65 to 127 byte Packets */
#define B44_TX_128_255  0x0520UL /* MIB TX 128 to 255 byte Packets */
#define B44_TX_256_511  0x0524UL /* MIB TX 256 to 511 byte Packets */
#define B44_TX_512_1023 0x0528UL /* MIB TX 512 to 1023 byte Packets */
#define B44_TX_1024_MAX 0x052CUL /* MIB TX 1024 to max byte Packets */
#define B44_TX_JABBER   0x0530UL /* MIB TX Jabber Packets */
#define B44_TX_OSIZE    0x0534UL /* MIB TX Oversize Packets */
#define B44_TX_FRAG     0x0538UL /* MIB TX Fragment Packets */
#define B44_TX_URUNS    0x053CUL /* MIB TX Underruns */
#define B44_TX_TCOLS    0x0540UL /* MIB TX Total Collisions */
#define B44_TX_SCOLS    0x0544UL /* MIB TX Single Collisions */
#define B44_TX_MCOLS    0x0548UL /* MIB TX Multiple Collisions */
#define B44_TX_ECOLS    0x054CUL /* MIB TX Excessive Collisions */
#define B44_TX_LCOLS    0x0550UL /* MIB TX Late Collisions */
#define B44_TX_DEFERED  0x0554UL /* MIB TX Defered Packets */
#define B44_TX_CLOST    0x0558UL /* MIB TX Carrier Lost */
#define B44_TX_PAUSE    0x055CUL /* MIB TX Pause Packets */
#define B44_RX_GOOD_O   0x0580UL /* MIB RX Good Octets */
#define B44_RX_GOOD_P   0x0584UL /* MIB RX Good Packets */
#define B44_RX_O        0x0588UL /* MIB RX Octets */
#define B44_RX_P        0x058CUL /* MIB RX Packets */
#define B44_RX_BCAST    0x0590UL /* MIB RX Broadcast Packets */
#define B44_RX_MCAST    0x0594UL /* MIB RX Multicast Packets */
#define B44_RX_64       0x0598UL /* MIB RX <= 64 byte Packets */
#define B44_RX_65_127   0x059CUL /* MIB RX 65 to 127 byte Packets */
#define B44_RX_128_255  0x05A0UL /* MIB RX 128 to 255 byte Packets */
#define B44_RX_256_511  0x05A4UL /* MIB RX 256 to 511 byte Packets */
#define B44_RX_512_1023 0x05A8UL /* MIB RX 512 to 1023 byte Packets */
#define B44_RX_1024_MAX 0x05ACUL /* MIB RX 1024 to max byte Packets */
#define B44_RX_JABBER   0x05B0UL /* MIB RX Jabber Packets */
#define B44_RX_OSIZE    0x05B4UL /* MIB RX Oversize Packets */
#define B44_RX_FRAG     0x05B8UL /* MIB RX Fragment Packets */
#define B44_RX_MISS     0x05BCUL /* MIB RX Missed Packets */
#define B44_RX_CRCA     0x05C0UL /* MIB RX CRC Align Errors */
#define B44_RX_USIZE    0x05C4UL /* MIB RX Undersize Packets */
#define B44_RX_CRC      0x05C8UL /* MIB RX CRC Errors */
#define B44_RX_ALIGN    0x05CCUL /* MIB RX Align Errors */
#define B44_RX_SYM      0x05D0UL /* MIB RX Symbol Errors */
#define B44_RX_PAUSE    0x05D4UL /* MIB RX Pause Packets */
#define B44_RX_NPAUSE   0x05D8UL /* MIB RX Non-Pause Packets */

/* 4400 PHY registers */
#define B44_MII_AUXCTRL         24      /* Auxiliary Control */
#define  MII_AUXCTRL_DUPLEX     0x0001  /* Full Duplex */
#define  MII_AUXCTRL_SPEED      0x0002  /* 1=100Mbps, 0=10Mbps */
#define  MII_AUXCTRL_FORCED     0x0004  /* Forced 10/100 */
#define B44_MII_ALEDCTRL        26      /* Activity LED */
#define  MII_ALEDCTRL_ALLMSK    0x7fff
#define B44_MII_TLEDCTRL        27      /* Traffic Meter LED */
#define  MII_TLEDCTRL_ENABLE    0x0040

struct dma_desc {
        __le32  ctrl;
        __le32  addr;
};

/* There are only 12 bits in the DMA engine for descriptor offsetting
 * so the table must be aligned on a boundary of this.
 */
#define DMA_TABLE_BYTES         4096

#define DESC_CTRL_LEN   0x00001fff
#define DESC_CTRL_CMASK 0x0ff00000 /* Core specific bits */
#define DESC_CTRL_EOT   0x10000000 /* End of Table */
#define DESC_CTRL_IOC   0x20000000 /* Interrupt On Completion */
#define DESC_CTRL_EOF   0x40000000 /* End of Frame */
#define DESC_CTRL_SOF   0x80000000 /* Start of Frame */

#define RX_COPY_THRESHOLD       256

struct rx_header {
        __le16  len;
        __le16  flags;
        __le16  pad[12];
};
#define RX_HEADER_LEN   28

#define RX_FLAG_OFIFO   0x00000001 /* FIFO Overflow */
#define RX_FLAG_CRCERR  0x00000002 /* CRC Error */
#define RX_FLAG_SERR    0x00000004 /* Receive Symbol Error */
#define RX_FLAG_ODD     0x00000008 /* Frame has odd number of nibbles */
#define RX_FLAG_LARGE   0x00000010 /* Frame is > RX MAX Length */
#define RX_FLAG_MCAST   0x00000020 /* Dest is Multicast Address */
#define RX_FLAG_BCAST   0x00000040 /* Dest is Broadcast Address */
#define RX_FLAG_MISS    0x00000080 /* Received due to promisc mode */
#define RX_FLAG_LAST    0x00000800 /* Last buffer in frame */
#define RX_FLAG_ERRORS  (RX_FLAG_ODD | RX_FLAG_SERR | RX_FLAG_CRCERR | RX_FLAG_OFIFO)

struct ring_info {
        struct sk_buff          *skb;
        dma_addr_t      mapping;
};

#define B44_MCAST_TABLE_SIZE            32
/* no local phy regs, e.g: Broadcom switches pseudo-PHY */
#define B44_PHY_ADDR_NO_LOCAL_PHY       BRCM_PSEUDO_PHY_ADDR
/* no phy present at all */
#define B44_PHY_ADDR_NO_PHY             31
#define B44_MDC_RATIO                   5000000

#define B44_STAT_REG_DECLARE            \
        _B44(tx_good_octets)            \
        _B44(tx_good_pkts)              \
        _B44(tx_octets)                 \
        _B44(tx_pkts)                   \
        _B44(tx_broadcast_pkts)         \
        _B44(tx_multicast_pkts)         \
        _B44(tx_len_64)                 \
        _B44(tx_len_65_to_127)          \
        _B44(tx_len_128_to_255)         \
        _B44(tx_len_256_to_511)         \
        _B44(tx_len_512_to_1023)        \
        _B44(tx_len_1024_to_max)        \
        _B44(tx_jabber_pkts)            \
        _B44(tx_oversize_pkts)          \
        _B44(tx_fragment_pkts)          \
        _B44(tx_underruns)              \
        _B44(tx_total_cols)             \
        _B44(tx_single_cols)            \
        _B44(tx_multiple_cols)          \
        _B44(tx_excessive_cols)         \
        _B44(tx_late_cols)              \
        _B44(tx_defered)                \
        _B44(tx_carrier_lost)           \
        _B44(tx_pause_pkts)             \
        _B44(rx_good_octets)            \
        _B44(rx_good_pkts)              \
        _B44(rx_octets)                 \
        _B44(rx_pkts)                   \
        _B44(rx_broadcast_pkts)         \
        _B44(rx_multicast_pkts)         \
        _B44(rx_len_64)                 \
        _B44(rx_len_65_to_127)          \
        _B44(rx_len_128_to_255)         \
        _B44(rx_len_256_to_511)         \
        _B44(rx_len_512_to_1023)        \
        _B44(rx_len_1024_to_max)        \
        _B44(rx_jabber_pkts)            \
        _B44(rx_oversize_pkts)          \
        _B44(rx_fragment_pkts)          \
        _B44(rx_missed_pkts)            \
        _B44(rx_crc_align_errs)         \
        _B44(rx_undersize)              \
        _B44(rx_crc_errs)               \
        _B44(rx_align_errs)             \
        _B44(rx_symbol_errs)            \
        _B44(rx_pause_pkts)             \
        _B44(rx_nonpause_pkts)

/* SW copy of device statistics, kept up to date by periodic timer
 * which probes HW values. Check b44_stats_update if you mess with
 * the layout
 */
struct b44_hw_stats {
#define _B44(x) u64 x;
B44_STAT_REG_DECLARE
#undef _B44
        struct u64_stats_sync   syncp;
};

#define B44_BOARDFLAG_ROBO              0x0010  /* Board has robo switch */
#define B44_BOARDFLAG_ADM               0x0080  /* Board has ADMtek switch */

struct ssb_device;

struct b44 {
        spinlock_t              lock;

        u32                     imask, istat;

        struct dma_desc         *rx_ring, *tx_ring;

        u32                     tx_prod, tx_cons;
        u32                     rx_prod, rx_cons;

        struct ring_info        *rx_buffers;
        struct ring_info        *tx_buffers;

        struct napi_struct      napi;

        u32                     dma_offset;
        u32                     flags;
#define B44_FLAG_B0_ANDLATER    0x00000001
#define B44_FLAG_BUGGY_TXPTR    0x00000002
#define B44_FLAG_REORDER_BUG    0x00000004
#define B44_FLAG_PAUSE_AUTO     0x00008000
#define B44_FLAG_FULL_DUPLEX    0x00010000
#define B44_FLAG_100_BASE_T     0x00020000
#define B44_FLAG_TX_PAUSE       0x00040000
#define B44_FLAG_RX_PAUSE       0x00080000
#define B44_FLAG_FORCE_LINK     0x00100000
#define B44_FLAG_ADV_10HALF     0x01000000
#define B44_FLAG_ADV_10FULL     0x02000000
#define B44_FLAG_ADV_100HALF    0x04000000
#define B44_FLAG_ADV_100FULL    0x08000000
#define B44_FLAG_EXTERNAL_PHY   0x10000000
#define B44_FLAG_RX_RING_HACK   0x20000000
#define B44_FLAG_TX_RING_HACK   0x40000000
#define B44_FLAG_WOL_ENABLE     0x80000000

        u32                     msg_enable;

        struct timer_list       timer;

        struct b44_hw_stats     hw_stats;

        struct ssb_device       *sdev;
        struct net_device       *dev;

        dma_addr_t              rx_ring_dma, tx_ring_dma;

        u32                     rx_pending;
        u32                     tx_pending;
        u8                      phy_addr;
        u8                      force_copybreak;
        struct mii_bus          *mii_bus;
        int                     old_link;
        struct mii_if_info      mii_if;
};

#endif /* _B44_H */