| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* $Id: sunbmac.h,v 1.7 2000/07/11 22:35:22 davem Exp $ |
| 2 | * sunbmac.h: Defines for the Sun "Big MAC" 100baseT ethernet cards. |
| 3 | * |
| 4 | * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) |
| 5 | */ |
| 6 | |
| 7 | #ifndef _SUNBMAC_H |
| 8 | #define _SUNBMAC_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-mem size (64K) */ |
| 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 | /* QEC BigMAC channel registers. */ |
| 39 | #define CREG_CTRL 0x00UL /* Control */ |
| 40 | #define CREG_STAT 0x04UL /* Status */ |
| 41 | #define CREG_RXDS 0x08UL /* RX descriptor ring ptr */ |
| 42 | #define CREG_TXDS 0x0cUL /* TX descriptor ring ptr */ |
| 43 | #define CREG_RIMASK 0x10UL /* RX Interrupt Mask */ |
| 44 | #define CREG_TIMASK 0x14UL /* TX Interrupt Mask */ |
| 45 | #define CREG_QMASK 0x18UL /* QEC Error Interrupt Mask */ |
| 46 | #define CREG_BMASK 0x1cUL /* BigMAC Error Interrupt Mask*/ |
| 47 | #define CREG_RXWBUFPTR 0x20UL /* Local memory rx write ptr */ |
| 48 | #define CREG_RXRBUFPTR 0x24UL /* Local memory rx read ptr */ |
| 49 | #define CREG_TXWBUFPTR 0x28UL /* Local memory tx write ptr */ |
| 50 | #define CREG_TXRBUFPTR 0x2cUL /* Local memory tx read ptr */ |
| 51 | #define CREG_CCNT 0x30UL /* Collision Counter */ |
| 52 | #define CREG_REG_SIZE 0x34UL |
| 53 | |
| 54 | #define CREG_CTRL_TWAKEUP 0x00000001 /* Transmitter Wakeup, 'go'. */ |
| 55 | |
| 56 | #define CREG_STAT_BERROR 0x80000000 /* BigMAC error */ |
| 57 | #define CREG_STAT_TXIRQ 0x00200000 /* Transmit Interrupt */ |
| 58 | #define CREG_STAT_TXDERROR 0x00080000 /* TX Descriptor is bogus */ |
| 59 | #define CREG_STAT_TXLERR 0x00040000 /* Late Transmit Error */ |
| 60 | #define CREG_STAT_TXPERR 0x00020000 /* Transmit Parity Error */ |
| 61 | #define CREG_STAT_TXSERR 0x00010000 /* Transmit SBUS error ack */ |
| 62 | #define CREG_STAT_RXIRQ 0x00000020 /* Receive Interrupt */ |
| 63 | #define CREG_STAT_RXDROP 0x00000010 /* Dropped a RX'd packet */ |
| 64 | #define CREG_STAT_RXSMALL 0x00000008 /* Receive buffer too small */ |
| 65 | #define CREG_STAT_RXLERR 0x00000004 /* Receive Late Error */ |
| 66 | #define CREG_STAT_RXPERR 0x00000002 /* Receive Parity Error */ |
| 67 | #define CREG_STAT_RXSERR 0x00000001 /* Receive SBUS Error ACK */ |
| 68 | |
| 69 | #define CREG_STAT_ERRORS (CREG_STAT_BERROR|CREG_STAT_TXDERROR|CREG_STAT_TXLERR| \ |
| 70 | CREG_STAT_TXPERR|CREG_STAT_TXSERR|CREG_STAT_RXDROP| \ |
| 71 | CREG_STAT_RXSMALL|CREG_STAT_RXLERR|CREG_STAT_RXPERR| \ |
| 72 | CREG_STAT_RXSERR) |
| 73 | |
| 74 | #define CREG_QMASK_TXDERROR 0x00080000 /* TXD error */ |
| 75 | #define CREG_QMASK_TXLERR 0x00040000 /* TX late error */ |
| 76 | #define CREG_QMASK_TXPERR 0x00020000 /* TX parity error */ |
| 77 | #define CREG_QMASK_TXSERR 0x00010000 /* TX sbus error ack */ |
| 78 | #define CREG_QMASK_RXDROP 0x00000010 /* RX drop */ |
| 79 | #define CREG_QMASK_RXBERROR 0x00000008 /* RX buffer error */ |
| 80 | #define CREG_QMASK_RXLEERR 0x00000004 /* RX late error */ |
| 81 | #define CREG_QMASK_RXPERR 0x00000002 /* RX parity error */ |
| 82 | #define CREG_QMASK_RXSERR 0x00000001 /* RX sbus error ack */ |
| 83 | |
| 84 | /* BIGMAC core registers */ |
| 85 | #define BMAC_XIFCFG 0x000UL /* XIF config register */ |
| 86 | /* 0x004-->0x0fc, reserved */ |
| 87 | #define BMAC_STATUS 0x100UL /* Status register, clear on read */ |
| 88 | #define BMAC_IMASK 0x104UL /* Interrupt mask register */ |
| 89 | /* 0x108-->0x204, reserved */ |
| 90 | #define BMAC_TXSWRESET 0x208UL /* Transmitter software reset */ |
| 91 | #define BMAC_TXCFG 0x20cUL /* Transmitter config register */ |
| 92 | #define BMAC_IGAP1 0x210UL /* Inter-packet gap 1 */ |
| 93 | #define BMAC_IGAP2 0x214UL /* Inter-packet gap 2 */ |
| 94 | #define BMAC_ALIMIT 0x218UL /* Transmit attempt limit */ |
| 95 | #define BMAC_STIME 0x21cUL /* Transmit slot time */ |
| 96 | #define BMAC_PLEN 0x220UL /* Size of transmit preamble */ |
| 97 | #define BMAC_PPAT 0x224UL /* Pattern for transmit preamble */ |
| 98 | #define BMAC_TXDELIM 0x228UL /* Transmit delimiter */ |
| 99 | #define BMAC_JSIZE 0x22cUL /* Toe jam... */ |
| 100 | #define BMAC_TXPMAX 0x230UL /* Transmit max pkt size */ |
| 101 | #define BMAC_TXPMIN 0x234UL /* Transmit min pkt size */ |
| 102 | #define BMAC_PATTEMPT 0x238UL /* Count of transmit peak attempts */ |
| 103 | #define BMAC_DTCTR 0x23cUL /* Transmit defer timer */ |
| 104 | #define BMAC_NCCTR 0x240UL /* Transmit normal-collision counter */ |
| 105 | #define BMAC_FCCTR 0x244UL /* Transmit first-collision counter */ |
| 106 | #define BMAC_EXCTR 0x248UL /* Transmit excess-collision counter */ |
| 107 | #define BMAC_LTCTR 0x24cUL /* Transmit late-collision counter */ |
| 108 | #define BMAC_RSEED 0x250UL /* Transmit random number seed */ |
| 109 | #define BMAC_TXSMACHINE 0x254UL /* Transmit state machine */ |
| 110 | /* 0x258-->0x304, reserved */ |
| 111 | #define BMAC_RXSWRESET 0x308UL /* Receiver software reset */ |
| 112 | #define BMAC_RXCFG 0x30cUL /* Receiver config register */ |
| 113 | #define BMAC_RXPMAX 0x310UL /* Receive max pkt size */ |
| 114 | #define BMAC_RXPMIN 0x314UL /* Receive min pkt size */ |
| 115 | #define BMAC_MACADDR2 0x318UL /* Ether address register 2 */ |
| 116 | #define BMAC_MACADDR1 0x31cUL /* Ether address register 1 */ |
| 117 | #define BMAC_MACADDR0 0x320UL /* Ether address register 0 */ |
| 118 | #define BMAC_FRCTR 0x324UL /* Receive frame receive counter */ |
| 119 | #define BMAC_GLECTR 0x328UL /* Receive giant-length error counter */ |
| 120 | #define BMAC_UNALECTR 0x32cUL /* Receive unaligned error counter */ |
| 121 | #define BMAC_RCRCECTR 0x330UL /* Receive CRC error counter */ |
| 122 | #define BMAC_RXSMACHINE 0x334UL /* Receiver state machine */ |
| 123 | #define BMAC_RXCVALID 0x338UL /* Receiver code violation */ |
| 124 | /* 0x33c, reserved */ |
| 125 | #define BMAC_HTABLE3 0x340UL /* Hash table 3 */ |
| 126 | #define BMAC_HTABLE2 0x344UL /* Hash table 2 */ |
| 127 | #define BMAC_HTABLE1 0x348UL /* Hash table 1 */ |
| 128 | #define BMAC_HTABLE0 0x34cUL /* Hash table 0 */ |
| 129 | #define BMAC_AFILTER2 0x350UL /* Address filter 2 */ |
| 130 | #define BMAC_AFILTER1 0x354UL /* Address filter 1 */ |
| 131 | #define BMAC_AFILTER0 0x358UL /* Address filter 0 */ |
| 132 | #define BMAC_AFMASK 0x35cUL /* Address filter mask */ |
| 133 | #define BMAC_REG_SIZE 0x360UL |
| 134 | |
| 135 | /* BigMac XIF config register. */ |
| 136 | #define BIGMAC_XCFG_ODENABLE 0x00000001 /* Output driver enable */ |
| 137 | #define BIGMAC_XCFG_RESV 0x00000002 /* Reserved, write always as 1 */ |
| 138 | #define BIGMAC_XCFG_MLBACK 0x00000004 /* Loopback-mode MII enable */ |
| 139 | #define BIGMAC_XCFG_SMODE 0x00000008 /* Enable serial mode */ |
| 140 | |
| 141 | /* BigMAC status register. */ |
| 142 | #define BIGMAC_STAT_GOTFRAME 0x00000001 /* Received a frame */ |
| 143 | #define BIGMAC_STAT_RCNTEXP 0x00000002 /* Receive frame counter expired */ |
| 144 | #define BIGMAC_STAT_ACNTEXP 0x00000004 /* Align-error counter expired */ |
| 145 | #define BIGMAC_STAT_CCNTEXP 0x00000008 /* CRC-error counter expired */ |
| 146 | #define BIGMAC_STAT_LCNTEXP 0x00000010 /* Length-error counter expired */ |
| 147 | #define BIGMAC_STAT_RFIFOVF 0x00000020 /* Receive FIFO overflow */ |
| 148 | #define BIGMAC_STAT_CVCNTEXP 0x00000040 /* Code-violation counter expired */ |
| 149 | #define BIGMAC_STAT_SENTFRAME 0x00000100 /* Transmitted a frame */ |
| 150 | #define BIGMAC_STAT_TFIFO_UND 0x00000200 /* Transmit FIFO underrun */ |
| 151 | #define BIGMAC_STAT_MAXPKTERR 0x00000400 /* Max-packet size error */ |
| 152 | #define BIGMAC_STAT_NCNTEXP 0x00000800 /* Normal-collision counter expired */ |
| 153 | #define BIGMAC_STAT_ECNTEXP 0x00001000 /* Excess-collision counter expired */ |
| 154 | #define BIGMAC_STAT_LCCNTEXP 0x00002000 /* Late-collision counter expired */ |
| 155 | #define BIGMAC_STAT_FCNTEXP 0x00004000 /* First-collision counter expired */ |
| 156 | #define BIGMAC_STAT_DTIMEXP 0x00008000 /* Defer-timer expired */ |
| 157 | |
| 158 | /* BigMAC interrupt mask register. */ |
| 159 | #define BIGMAC_IMASK_GOTFRAME 0x00000001 /* Received a frame */ |
| 160 | #define BIGMAC_IMASK_RCNTEXP 0x00000002 /* Receive frame counter expired */ |
| 161 | #define BIGMAC_IMASK_ACNTEXP 0x00000004 /* Align-error counter expired */ |
| 162 | #define BIGMAC_IMASK_CCNTEXP 0x00000008 /* CRC-error counter expired */ |
| 163 | #define BIGMAC_IMASK_LCNTEXP 0x00000010 /* Length-error counter expired */ |
| 164 | #define BIGMAC_IMASK_RFIFOVF 0x00000020 /* Receive FIFO overflow */ |
| 165 | #define BIGMAC_IMASK_CVCNTEXP 0x00000040 /* Code-violation counter expired */ |
| 166 | #define BIGMAC_IMASK_SENTFRAME 0x00000100 /* Transmitted a frame */ |
| 167 | #define BIGMAC_IMASK_TFIFO_UND 0x00000200 /* Transmit FIFO underrun */ |
| 168 | #define BIGMAC_IMASK_MAXPKTERR 0x00000400 /* Max-packet size error */ |
| 169 | #define BIGMAC_IMASK_NCNTEXP 0x00000800 /* Normal-collision counter expired */ |
| 170 | #define BIGMAC_IMASK_ECNTEXP 0x00001000 /* Excess-collision counter expired */ |
| 171 | #define BIGMAC_IMASK_LCCNTEXP 0x00002000 /* Late-collision counter expired */ |
| 172 | #define BIGMAC_IMASK_FCNTEXP 0x00004000 /* First-collision counter expired */ |
| 173 | #define BIGMAC_IMASK_DTIMEXP 0x00008000 /* Defer-timer expired */ |
| 174 | |
| 175 | /* BigMac transmit config register. */ |
| 176 | #define BIGMAC_TXCFG_ENABLE 0x00000001 /* Enable the transmitter */ |
| 177 | #define BIGMAC_TXCFG_FIFO 0x00000010 /* Default tx fthresh... */ |
| 178 | #define BIGMAC_TXCFG_SMODE 0x00000020 /* Enable slow transmit mode */ |
| 179 | #define BIGMAC_TXCFG_CIGN 0x00000040 /* Ignore transmit collisions */ |
| 180 | #define BIGMAC_TXCFG_FCSOFF 0x00000080 /* Do not emit FCS */ |
| 181 | #define BIGMAC_TXCFG_DBACKOFF 0x00000100 /* Disable backoff */ |
| 182 | #define BIGMAC_TXCFG_FULLDPLX 0x00000200 /* Enable full-duplex */ |
| 183 | |
| 184 | /* BigMac receive config register. */ |
| 185 | #define BIGMAC_RXCFG_ENABLE 0x00000001 /* Enable the receiver */ |
| 186 | #define BIGMAC_RXCFG_FIFO 0x0000000e /* Default rx fthresh... */ |
| 187 | #define BIGMAC_RXCFG_PSTRIP 0x00000020 /* Pad byte strip enable */ |
| Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 188 | #define BIGMAC_RXCFG_PMISC 0x00000040 /* Enable promiscuous mode */ |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 189 | #define BIGMAC_RXCFG_DERR 0x00000080 /* Disable error checking */ |
| 190 | #define BIGMAC_RXCFG_DCRCS 0x00000100 /* Disable CRC stripping */ |
| 191 | #define BIGMAC_RXCFG_ME 0x00000200 /* Receive packets addressed to me */ |
| 192 | #define BIGMAC_RXCFG_PGRP 0x00000400 /* Enable promisc group mode */ |
| 193 | #define BIGMAC_RXCFG_HENABLE 0x00000800 /* Enable the hash filter */ |
| 194 | #define BIGMAC_RXCFG_AENABLE 0x00001000 /* Enable the address filter */ |
| 195 | |
| 196 | /* The BigMAC PHY transceiver. Not nearly as sophisticated as the happy meal |
| 197 | * one. But it does have the "bit banger", oh baby. |
| 198 | */ |
| 199 | #define TCVR_TPAL 0x00UL |
| 200 | #define TCVR_MPAL 0x04UL |
| 201 | #define TCVR_REG_SIZE 0x08UL |
| 202 | |
| 203 | /* Frame commands. */ |
| 204 | #define FRAME_WRITE 0x50020000 |
| 205 | #define FRAME_READ 0x60020000 |
| 206 | |
| 207 | /* Tranceiver registers. */ |
| 208 | #define TCVR_PAL_SERIAL 0x00000001 /* Enable serial mode */ |
| 209 | #define TCVR_PAL_EXTLBACK 0x00000002 /* Enable external loopback */ |
| 210 | #define TCVR_PAL_MSENSE 0x00000004 /* Media sense */ |
| 211 | #define TCVR_PAL_LTENABLE 0x00000008 /* Link test enable */ |
| 212 | #define TCVR_PAL_LTSTATUS 0x00000010 /* Link test status (P1 only) */ |
| 213 | |
| 214 | /* Management PAL. */ |
| 215 | #define MGMT_PAL_DCLOCK 0x00000001 /* Data clock */ |
| 216 | #define MGMT_PAL_OENAB 0x00000002 /* Output enabler */ |
| 217 | #define MGMT_PAL_MDIO 0x00000004 /* MDIO Data/attached */ |
| 218 | #define MGMT_PAL_TIMEO 0x00000008 /* Transmit enable timeout error */ |
| 219 | #define MGMT_PAL_EXT_MDIO MGMT_PAL_MDIO |
| 220 | #define MGMT_PAL_INT_MDIO MGMT_PAL_TIMEO |
| 221 | |
| 222 | /* Here are some PHY addresses. */ |
| 223 | #define BIGMAC_PHY_EXTERNAL 0 /* External transceiver */ |
| 224 | #define BIGMAC_PHY_INTERNAL 1 /* Internal transceiver */ |
| 225 | |
| 226 | /* PHY registers */ |
| 227 | #define BIGMAC_BMCR 0x00 /* Basic mode control register */ |
| 228 | #define BIGMAC_BMSR 0x01 /* Basic mode status register */ |
| 229 | |
| 230 | /* BMCR bits */ |
| 231 | #define BMCR_ISOLATE 0x0400 /* Disconnect DP83840 from MII */ |
| 232 | #define BMCR_PDOWN 0x0800 /* Powerdown the DP83840 */ |
| 233 | #define BMCR_ANENABLE 0x1000 /* Enable auto negotiation */ |
| 234 | #define BMCR_SPEED100 0x2000 /* Select 100Mbps */ |
| 235 | #define BMCR_LOOPBACK 0x4000 /* TXD loopback bits */ |
| 236 | #define BMCR_RESET 0x8000 /* Reset the DP83840 */ |
| 237 | |
| 238 | /* BMSR bits */ |
| 239 | #define BMSR_ERCAP 0x0001 /* Ext-reg capability */ |
| 240 | #define BMSR_JCD 0x0002 /* Jabber detected */ |
| 241 | #define BMSR_LSTATUS 0x0004 /* Link status */ |
| 242 | |
| 243 | /* Ring descriptors and such, same as Quad Ethernet. */ |
| 244 | struct be_rxd { |
| 245 | u32 rx_flags; |
| 246 | u32 rx_addr; |
| 247 | }; |
| 248 | |
| 249 | #define RXD_OWN 0x80000000 /* Ownership. */ |
| 250 | #define RXD_UPDATE 0x10000000 /* Being Updated? */ |
| 251 | #define RXD_LENGTH 0x000007ff /* Packet Length. */ |
| 252 | |
| 253 | struct be_txd { |
| 254 | u32 tx_flags; |
| 255 | u32 tx_addr; |
| 256 | }; |
| 257 | |
| 258 | #define TXD_OWN 0x80000000 /* Ownership. */ |
| 259 | #define TXD_SOP 0x40000000 /* Start Of Packet */ |
| 260 | #define TXD_EOP 0x20000000 /* End Of Packet */ |
| 261 | #define TXD_UPDATE 0x10000000 /* Being Updated? */ |
| 262 | #define TXD_LENGTH 0x000007ff /* Packet Length. */ |
| 263 | |
| 264 | #define TX_RING_MAXSIZE 256 |
| 265 | #define RX_RING_MAXSIZE 256 |
| 266 | |
| 267 | #define TX_RING_SIZE 256 |
| 268 | #define RX_RING_SIZE 256 |
| 269 | |
| 270 | #define NEXT_RX(num) (((num) + 1) & (RX_RING_SIZE - 1)) |
| 271 | #define NEXT_TX(num) (((num) + 1) & (TX_RING_SIZE - 1)) |
| 272 | #define PREV_RX(num) (((num) - 1) & (RX_RING_SIZE - 1)) |
| 273 | #define PREV_TX(num) (((num) - 1) & (TX_RING_SIZE - 1)) |
| 274 | |
| 275 | #define TX_BUFFS_AVAIL(bp) \ |
| 276 | (((bp)->tx_old <= (bp)->tx_new) ? \ |
| 277 | (bp)->tx_old + (TX_RING_SIZE - 1) - (bp)->tx_new : \ |
| 278 | (bp)->tx_old - (bp)->tx_new - 1) |
| 279 | |
| 280 | |
| 281 | #define RX_COPY_THRESHOLD 256 |
| 282 | #define RX_BUF_ALLOC_SIZE (ETH_FRAME_LEN + (64 * 3)) |
| 283 | |
| 284 | struct bmac_init_block { |
| 285 | struct be_rxd be_rxd[RX_RING_MAXSIZE]; |
| 286 | struct be_txd be_txd[TX_RING_MAXSIZE]; |
| 287 | }; |
| 288 | |
| 289 | #define bib_offset(mem, elem) \ |
| 290 | ((__u32)((unsigned long)(&(((struct bmac_init_block *)0)->mem[elem])))) |
| 291 | |
| 292 | /* Now software state stuff. */ |
| 293 | enum bigmac_transceiver { |
| 294 | external = 0, |
| 295 | internal = 1, |
| 296 | none = 2, |
| 297 | }; |
| 298 | |
| 299 | /* Timer state engine. */ |
| 300 | enum bigmac_timer_state { |
| 301 | ltrywait = 1, /* Forcing try of all modes, from fastest to slowest. */ |
| 302 | asleep = 2, /* Timer inactive. */ |
| 303 | }; |
| 304 | |
| 305 | struct bigmac { |
| 306 | void __iomem *gregs; /* QEC Global Registers */ |
| 307 | void __iomem *creg; /* QEC BigMAC Channel Registers */ |
| 308 | void __iomem *bregs; /* BigMAC Registers */ |
| 309 | void __iomem *tregs; /* BigMAC Transceiver */ |
| 310 | struct bmac_init_block *bmac_block; /* RX and TX descriptors */ |
| 311 | __u32 bblock_dvma; /* RX and TX descriptors */ |
| 312 | |
| 313 | spinlock_t lock; |
| 314 | |
| 315 | struct sk_buff *rx_skbs[RX_RING_SIZE]; |
| 316 | struct sk_buff *tx_skbs[TX_RING_SIZE]; |
| 317 | |
| 318 | int rx_new, tx_new, rx_old, tx_old; |
| 319 | |
| 320 | int board_rev; /* BigMAC board revision. */ |
| 321 | |
| 322 | enum bigmac_transceiver tcvr_type; |
| 323 | unsigned int bigmac_bursts; |
| 324 | unsigned int paddr; |
| 325 | unsigned short sw_bmsr; /* SW copy of PHY BMSR */ |
| 326 | unsigned short sw_bmcr; /* SW copy of PHY BMCR */ |
| 327 | struct timer_list bigmac_timer; |
| 328 | enum bigmac_timer_state timer_state; |
| 329 | unsigned int timer_ticks; |
| 330 | |
| 331 | struct net_device_stats enet_stats; |
| Grant Likely | 2dc1158 | 2010-08-06 09:25:50 -0600 | [diff] [blame] | 332 | struct platform_device *qec_op; |
| 333 | struct platform_device *bigmac_op; |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 334 | struct net_device *dev; |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | }; |
| 336 | |
| 337 | /* We use this to acquire receive skb's that we can DMA directly into. */ |
| 338 | #define ALIGNED_RX_SKB_ADDR(addr) \ |
| 339 | ((((unsigned long)(addr) + (64 - 1)) & ~(64 - 1)) - (unsigned long)(addr)) |
| 340 | |
| Al Viro | 9e24974 | 2005-10-21 03:22:29 -0400 | [diff] [blame] | 341 | static inline struct sk_buff *big_mac_alloc_skb(unsigned int length, gfp_t gfp_flags) |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 342 | { |
| 343 | struct sk_buff *skb; |
| 344 | |
| 345 | skb = alloc_skb(length + 64, gfp_flags); |
| 346 | if(skb) { |
| 347 | int offset = ALIGNED_RX_SKB_ADDR(skb->data); |
| 348 | |
| 349 | if(offset) |
| 350 | skb_reserve(skb, offset); |
| 351 | } |
| 352 | return skb; |
| 353 | } |
| 354 | |
| 355 | #endif /* !(_SUNBMAC_H) */ |