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rtl81x9reg.h revision 1.23
      1 /*	$NetBSD: rtl81x9reg.h,v 1.23 2006/11/17 23:41:42 tsutsui Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1997, 1998
      5  *	Bill Paul <wpaul (at) ctr.columbia.edu>.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by Bill Paul.
     18  * 4. Neither the name of the author nor the names of any co-contributors
     19  *    may be used to endorse or promote products derived from this software
     20  *    without specific prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
     23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     25  * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
     26  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     32  * THE POSSIBILITY OF SUCH DAMAGE.
     33  *
     34  *	FreeBSD Id: if_rlreg.h,v 1.9 1999/06/20 18:56:09 wpaul Exp
     35  */
     36 
     37 /*
     38  * RealTek 8129/8139 register offsets
     39  */
     40 #define RTK_IDR0	0x0000		/* ID register 0 (station addr) */
     41 #define RTK_IDR1	0x0001		/* Must use 32-bit accesses (?) */
     42 #define RTK_IDR2	0x0002
     43 #define RTK_IDR3	0x0003
     44 #define RTK_IDR4	0x0004
     45 #define RTK_IDR5	0x0005
     46 					/* 0006-0007 reserved */
     47 #define RTK_MAR0	0x0008		/* Multicast hash table */
     48 #define RTK_MAR1	0x0009
     49 #define RTK_MAR2	0x000A
     50 #define RTK_MAR3	0x000B
     51 #define RTK_MAR4	0x000C
     52 #define RTK_MAR5	0x000D
     53 #define RTK_MAR6	0x000E
     54 #define RTK_MAR7	0x000F
     55 
     56 #define RTK_TXSTAT0	0x0010		/* status of TX descriptor 0 */
     57 #define RTK_TXSTAT1	0x0014		/* status of TX descriptor 1 */
     58 #define RTK_TXSTAT2	0x0018		/* status of TX descriptor 2 */
     59 #define RTK_TXSTAT3	0x001C		/* status of TX descriptor 3 */
     60 
     61 #define RTK_TXADDR0	0x0020		/* address of TX descriptor 0 */
     62 #define RTK_TXADDR1	0x0024		/* address of TX descriptor 1 */
     63 #define RTK_TXADDR2	0x0028		/* address of TX descriptor 2 */
     64 #define RTK_TXADDR3	0x002C		/* address of TX descriptor 3 */
     65 
     66 #define RTK_RXADDR		0x0030	/* RX ring start address */
     67 #define RTK_RX_EARLY_BYTES	0x0034	/* RX early byte count */
     68 #define RTK_RX_EARLY_STAT	0x0036	/* RX early status */
     69 #define RTK_COMMAND	0x0037		/* command register */
     70 #define RTK_CURRXADDR	0x0038		/* current address of packet read */
     71 #define RTK_CURRXBUF	0x003A		/* current RX buffer address */
     72 #define RTK_IMR		0x003C		/* interrupt mask register */
     73 #define RTK_ISR		0x003E		/* interrupt status register */
     74 #define RTK_TXCFG	0x0040		/* transmit config */
     75 #define RTK_RXCFG	0x0044		/* receive config */
     76 #define RTK_TIMERCNT	0x0048		/* timer count register */
     77 #define RTK_MISSEDPKT	0x004C		/* missed packet counter */
     78 #define RTK_EECMD	0x0050		/* EEPROM command register */
     79 #define RTK_CFG0	0x0051		/* config register #0 */
     80 #define RTK_CFG1	0x0052		/* config register #1 */
     81 					/* 0053-0057 reserved */
     82 #define RTK_MEDIASTAT	0x0058		/* media status register (8139) */
     83 					/* 0059-005A reserved */
     84 #define RTK_MII		0x005A		/* 8129 chip only */
     85 #define RTK_HALTCLK	0x005B
     86 #define RTK_MULTIINTR	0x005C		/* multiple interrupt */
     87 #define RTK_PCIREV	0x005E		/* PCI revision value */
     88 					/* 005F reserved */
     89 #define RTK_TXSTAT_ALL	0x0060		/* TX status of all descriptors */
     90 
     91 /* Direct PHY access registers only available on 8139 */
     92 #define RTK_BMCR	0x0062		/* PHY basic mode control */
     93 #define RTK_BMSR	0x0064		/* PHY basic mode status */
     94 #define RTK_ANAR	0x0066		/* PHY autoneg advert */
     95 #define RTK_LPAR	0x0068		/* PHY link partner ability */
     96 #define RTK_ANER	0x006A		/* PHY autoneg expansion */
     97 
     98 #define RTK_DISCCNT	0x006C		/* disconnect counter */
     99 #define RTK_FALSECAR	0x006E		/* false carrier counter */
    100 #define RTK_NWAYTST	0x0070		/* NWAY test register */
    101 #define RTK_RX_ER	0x0072		/* RX_ER counter */
    102 #define RTK_CSCFG	0x0074		/* CS configuration register */
    103 
    104 /*
    105  * When operating in special C+ mode, some of the registers in an
    106  * 8139C+ chip have different definitions. These are also used for
    107  * the 8169 gigE chip.
    108  */
    109 #define RTK_DUMPSTATS_LO	0x0010	/* counter dump command register */
    110 #define RTK_DUMPSTATS_HI	0x0014	/* counter dump command register */
    111 #define RTK_TXLIST_ADDR_LO	0x0020	/* 64 bits, 256 byte alignment */
    112 #define RTK_TXLIST_ADDR_HI	0x0024	/* 64 bits, 256 byte alignment */
    113 #define RTK_TXLIST_ADDR_HPRIO_LO	0x0028	/* 64 bits, 256 byte aligned */
    114 #define RTK_TXLIST_ADDR_HPRIO_HI	0x002C	/* 64 bits, 256 byte aligned */
    115 #define RTK_CFG2		0x0053
    116 #define RTK_TIMERINT		0x0054	/* interrupt on timer expire */
    117 #define RTK_TXSTART		0x00D9	/* 8 bits */
    118 #define RTK_CPLUS_CMD		0x00E0	/* 16 bits */
    119 #define RTK_RXLIST_ADDR_LO	0x00E4	/* 64 bits, 256 byte alignment */
    120 #define RTK_RXLIST_ADDR_HI	0x00E8	/* 64 bits, 256 byte alignment */
    121 #define RTK_EARLY_TX_THRESH	0x00EC	/* 8 bits */
    122 
    123 /*
    124  * Registers specific to the 8169 gigE chip
    125  */
    126 #define RTK_GTXSTART		0x0038	/* 16 bits */
    127 #define RTK_TIMERINT_8169	0x0058	/* different offset than 8139 */
    128 #define RTK_PHYAR		0x0060
    129 #define RTK_TBICSR		0x0064
    130 #define RTK_TBI_ANAR		0x0068
    131 #define RTK_TBI_LPAR		0x006A
    132 #define RTK_GMEDIASTAT		0x006C	/* 8 bits */
    133 #define RTK_LDPS		0x0082	/* Link Down Power Saving */
    134 #define RTK_MAXRXPKTLEN		0x00DA	/* 16 bits, chip multiplies by 8 */
    135 #define RTK_IM			0x00E2
    136 
    137 /*
    138  * TX config register bits
    139  */
    140 #define RTK_TXCFG_CLRABRT	0x00000001	/* retransmit aborted pkt */
    141 #define RTK_TXCFG_MAXDMA	0x00000700	/* max DMA burst size */
    142 #define RTK_TXCFG_CRCAPPEND	0x00010000	/* CRC append (0 = yes) */
    143 #define RTK_TXCFG_LOOPBKTST	0x00060000	/* loopback test */
    144 #define RTK_TXCFG_IFG2		0x00080000	/* 8169 only */
    145 #define RTK_TXCFG_IFG		0x03000000	/* interframe gap */
    146 #define RTK_TXCFG_HWREV		0x7CC00000
    147 
    148 #define RTK_LOOPTEST_OFF		0x00000000
    149 #define RTK_LOOPTEST_ON		0x00020000
    150 #define RTK_LOOPTEST_ON_CPLUS	0x00060000
    151 
    152 #define RTK_HWREV_8169		0x00000000
    153 #define RTK_HWREV_8169S		0x04000000
    154 #define RTK_HWREV_8169SB	0x10000000
    155 #define RTK_HWREV_8110S		0x00800000
    156 #define RTK_HWREV_8139		0x60000000
    157 #define RTK_HWREV_8139A		0x70000000
    158 #define RTK_HWREV_8139AG	0x70800000
    159 #define RTK_HWREV_8139B		0x78000000
    160 #define RTK_HWREV_8130		0x7C000000
    161 #define RTK_HWREV_8139C		0x74000000
    162 #define RTK_HWREV_8139D		0x74400000
    163 #define RTK_HWREV_8139CPLUS	0x74800000
    164 #define RTK_HWREV_8101		0x74c00000
    165 #define RTK_HWREV_8100		0x78800000
    166 #define RTK_HWREV_8168		0x30000000
    167 #define RTK_HWREV_8168_2	0x38000000
    168 
    169 #define RTK_TXDMA_16BYTES	0x00000000
    170 #define RTK_TXDMA_32BYTES	0x00000100
    171 #define RTK_TXDMA_64BYTES	0x00000200
    172 #define RTK_TXDMA_128BYTES	0x00000300
    173 #define RTK_TXDMA_256BYTES	0x00000400
    174 #define RTK_TXDMA_512BYTES	0x00000500
    175 #define RTK_TXDMA_1024BYTES	0x00000600
    176 #define RTK_TXDMA_2048BYTES	0x00000700
    177 
    178 /*
    179  * Transmit descriptor status register bits.
    180  */
    181 #define RTK_TXSTAT_LENMASK	0x00001FFF
    182 #define RTK_TXSTAT_OWN		0x00002000
    183 #define RTK_TXSTAT_TX_UNDERRUN	0x00004000
    184 #define RTK_TXSTAT_TX_OK	0x00008000
    185 #define RTK_TXSTAT_EARLY_THRESH	0x003F0000
    186 #define RTK_TXSTAT_COLLCNT	0x0F000000
    187 #define RTK_TXSTAT_CARR_HBEAT	0x10000000
    188 #define RTK_TXSTAT_OUTOFWIN	0x20000000
    189 #define RTK_TXSTAT_TXABRT	0x40000000
    190 #define RTK_TXSTAT_CARRLOSS	0x80000000
    191 
    192 #define RTK_TXSTAT_THRESH(x)	(((x) << 16) & RTK_TXSTAT_EARLY_THRESH)
    193 #define RTK_TXTH_256		8	/* (x) * 32 bytes */
    194 #define RTK_TXTH_1536		48
    195 
    196 /*
    197  * Interrupt status register bits.
    198  */
    199 #define RTK_ISR_RX_OK		0x0001
    200 #define RTK_ISR_RX_ERR		0x0002
    201 #define RTK_ISR_TX_OK		0x0004
    202 #define RTK_ISR_TX_ERR		0x0008
    203 #define RTK_ISR_RX_OVERRUN	0x0010
    204 #define RTK_ISR_PKT_UNDERRUN	0x0020
    205 #define RTK_ISR_LINKCHG		0x0020	/* 8169 only */
    206 #define RTK_ISR_FIFO_OFLOW	0x0040	/* 8139 only */
    207 #define RTK_ISR_TX_DESC_UNAVAIL	0x0080	/* C+ only */
    208 #define RTK_ISR_SWI		0x0100	/* C+ only */
    209 #define RTK_ISR_CABLE_LEN_CHGD	0x2000
    210 #define RTK_ISR_PCS_TIMEOUT	0x4000	/* 8129 only */
    211 #define RTK_ISR_TIMEOUT_EXPIRED	0x4000
    212 #define RTK_ISR_SYSTEM_ERR	0x8000
    213 
    214 #define RTK_INTRS	\
    215 	(RTK_ISR_TX_OK|RTK_ISR_RX_OK|RTK_ISR_RX_ERR|RTK_ISR_TX_ERR|	\
    216 	RTK_ISR_RX_OVERRUN|RTK_ISR_PKT_UNDERRUN|RTK_ISR_FIFO_OFLOW|	\
    217 	RTK_ISR_PCS_TIMEOUT|RTK_ISR_SYSTEM_ERR)
    218 
    219 #define RTK_INTRS_CPLUS	\
    220 	(RTK_ISR_RX_OK|RTK_ISR_RX_ERR|RTK_ISR_TX_ERR|			\
    221 	RTK_ISR_RX_OVERRUN|RTK_ISR_PKT_UNDERRUN|RTK_ISR_FIFO_OFLOW|	\
    222 	RTK_ISR_PCS_TIMEOUT|RTK_ISR_SYSTEM_ERR|RTK_ISR_TIMEOUT_EXPIRED)
    223 
    224 
    225 /*
    226  * Media status register. (8139 only)
    227  */
    228 #define RTK_MEDIASTAT_RXPAUSE	0x01
    229 #define RTK_MEDIASTAT_TXPAUSE	0x02
    230 #define RTK_MEDIASTAT_LINK	0x04
    231 #define RTK_MEDIASTAT_SPEED10	0x08
    232 #define RTK_MEDIASTAT_RXFLOWCTL	0x40	/* duplex mode */
    233 #define RTK_MEDIASTAT_TXFLOWCTL	0x80	/* duplex mode */
    234 
    235 /*
    236  * Receive config register.
    237  */
    238 #define RTK_RXCFG_RX_ALLPHYS	0x00000001	/* accept all nodes */
    239 #define RTK_RXCFG_RX_INDIV	0x00000002	/* match filter */
    240 #define RTK_RXCFG_RX_MULTI	0x00000004	/* accept all multicast */
    241 #define RTK_RXCFG_RX_BROAD	0x00000008	/* accept all broadcast */
    242 #define RTK_RXCFG_RX_RUNT	0x00000010
    243 #define RTK_RXCFG_RX_ERRPKT	0x00000020
    244 #define RTK_RXCFG_WRAP		0x00000080
    245 #define RTK_RXCFG_MAXDMA	0x00000700
    246 #define RTK_RXCFG_BUFSZ		0x00001800
    247 #define RTK_RXCFG_FIFOTHRESH	0x0000E000
    248 #define RTK_RXCFG_EARLYTHRESH	0x07000000
    249 
    250 #define RTK_RXDMA_16BYTES	0x00000000
    251 #define RTK_RXDMA_32BYTES	0x00000100
    252 #define RTK_RXDMA_64BYTES	0x00000200
    253 #define RTK_RXDMA_128BYTES	0x00000300
    254 #define RTK_RXDMA_256BYTES	0x00000400
    255 #define RTK_RXDMA_512BYTES	0x00000500
    256 #define RTK_RXDMA_1024BYTES	0x00000600
    257 #define RTK_RXDMA_UNLIMITED	0x00000700
    258 
    259 #define RTK_RXBUF_8		0x00000000
    260 #define RTK_RXBUF_16		0x00000800
    261 #define RTK_RXBUF_32		0x00001000
    262 #define RTK_RXBUF_64		0x00001800
    263 #define RTK_RXBUF_LEN(x)	(1 << (((x) >> 11) + 13))
    264 
    265 #define RTK_RXFIFO_16BYTES	0x00000000
    266 #define RTK_RXFIFO_32BYTES	0x00002000
    267 #define RTK_RXFIFO_64BYTES	0x00004000
    268 #define RTK_RXFIFO_128BYTES	0x00006000
    269 #define RTK_RXFIFO_256BYTES	0x00008000
    270 #define RTK_RXFIFO_512BYTES	0x0000A000
    271 #define RTK_RXFIFO_1024BYTES	0x0000C000
    272 #define RTK_RXFIFO_NOTHRESH	0x0000E000
    273 
    274 /*
    275  * Bits in RX status header (included with RX'ed packet
    276  * in ring buffer).
    277  */
    278 #define RTK_RXSTAT_RXOK		0x00000001
    279 #define RTK_RXSTAT_ALIGNERR	0x00000002
    280 #define RTK_RXSTAT_CRCERR	0x00000004
    281 #define RTK_RXSTAT_GIANT	0x00000008
    282 #define RTK_RXSTAT_RUNT		0x00000010
    283 #define RTK_RXSTAT_BADSYM	0x00000020
    284 #define RTK_RXSTAT_BROAD	0x00002000
    285 #define RTK_RXSTAT_INDIV	0x00004000
    286 #define RTK_RXSTAT_MULTI	0x00008000
    287 #define RTK_RXSTAT_LENMASK	0xFFFF0000
    288 
    289 #define RTK_RXSTAT_UNFINISHED	0xFFF0		/* DMA still in progress */
    290 /*
    291  * Command register.
    292  */
    293 #define RTK_CMD_EMPTY_RXBUF	0x0001
    294 #define RTK_CMD_TX_ENB		0x0004
    295 #define RTK_CMD_RX_ENB		0x0008
    296 #define RTK_CMD_RESET		0x0010
    297 
    298 /*
    299  * EEPROM control register
    300  */
    301 #define RTK_EE_DATAOUT		0x01	/* Data out */
    302 #define RTK_EE_DATAIN		0x02	/* Data in */
    303 #define RTK_EE_CLK		0x04	/* clock */
    304 #define RTK_EE_SEL		0x08	/* chip select */
    305 #define RTK_EE_MODE		(0x40|0x80)
    306 
    307 #define RTK_EEMODE_OFF		0x00
    308 #define RTK_EEMODE_AUTOLOAD	0x40
    309 #define RTK_EEMODE_PROGRAM	0x80
    310 #define RTK_EEMODE_WRITECFG	(0x80|0x40)
    311 
    312 /* 9346/9356 EEPROM commands */
    313 #define RTK_EEADDR_LEN0		6	/* 9346 */
    314 #define RTK_EEADDR_LEN1		8	/* 9356 */
    315 #define RTK_EECMD_LEN		4
    316 
    317 #define RTK_EECMD_WRITE		0x5	/* 0101b */
    318 #define RTK_EECMD_READ		0x6	/* 0110b */
    319 #define RTK_EECMD_ERASE		0x7	/* 0111b */
    320 
    321 #define RTK_EE_ID		0x00
    322 #define RTK_EE_PCI_VID		0x01
    323 #define RTK_EE_PCI_DID		0x02
    324 /* Location of station address inside EEPROM */
    325 #define RTK_EE_EADDR0		0x07
    326 #define RTK_EE_EADDR1		0x08
    327 #define RTK_EE_EADDR2		0x09
    328 
    329 /*
    330  * MII register (8129 only)
    331  */
    332 #define RTK_MII_CLK		0x01
    333 #define RTK_MII_DATAIN		0x02
    334 #define RTK_MII_DATAOUT		0x04
    335 #define RTK_MII_DIR		0x80	/* 0 == input, 1 == output */
    336 
    337 /*
    338  * Config 0 register
    339  */
    340 #define RTK_CFG0_ROM0		0x01
    341 #define RTK_CFG0_ROM1		0x02
    342 #define RTK_CFG0_ROM2		0x04
    343 #define RTK_CFG0_PL0		0x08
    344 #define RTK_CFG0_PL1		0x10
    345 #define RTK_CFG0_10MBPS		0x20	/* 10 Mbps internal mode */
    346 #define RTK_CFG0_PCS		0x40
    347 #define RTK_CFG0_SCR		0x80
    348 
    349 /*
    350  * Config 1 register
    351  */
    352 #define RTK_CFG1_PWRDWN		0x01
    353 #define RTK_CFG1_SLEEP		0x02
    354 #define RTK_CFG1_IOMAP		0x04
    355 #define RTK_CFG1_MEMMAP		0x08
    356 #define RTK_CFG1_RSVD		0x10
    357 #define RTK_CFG1_DRVLOAD	0x20
    358 #define RTK_CFG1_LED0		0x40
    359 #define RTK_CFG1_FULLDUPLEX	0x40	/* 8129 only */
    360 #define RTK_CFG1_LED1		0x80
    361 
    362 /*
    363  * 8139C+ register definitions
    364  */
    365 
    366 /* RTK_DUMPSTATS_LO register */
    367 
    368 #define RTK_DUMPSTATS_START	0x00000008
    369 
    370 /* Transmit start register */
    371 
    372 #define RTK_TXSTART_SWI		0x01	/* generate TX interrupt */
    373 #define RTK_TXSTART_START	0x40	/* start normal queue transmit */
    374 #define RTK_TXSTART_HPRIO_START	0x80	/* start hi prio queue transmit */
    375 
    376 /*
    377  * Config 2 register, 8139C+/8169/8169S/8110S only
    378  */
    379 #define RTK_CFG2_BUSFREQ		0x07
    380 #define RTK_CFG2_BUSWIDTH	0x08
    381 #define RTK_CFG2_AUXPWRSTS	0x10
    382 
    383 #define RTK_BUSFREQ_33MHZ	0x00
    384 #define RTK_BUSFREQ_66MHZ	0x01
    385 
    386 #define RTK_BUSWIDTH_32BITS	0x00
    387 #define RTK_BUSWIDTH_64BITS	0x08
    388 
    389 /* C+ mode command register */
    390 
    391 #define RTK_CPLUSCMD_TXENB	0x0001	/* enable C+ transmit mode */
    392 #define RTK_CPLUSCMD_RXENB	0x0002	/* enable C+ receive mode */
    393 #define RTK_CPLUSCMD_PCI_MRW	0x0008	/* enable PCI multi-read/write */
    394 #define RTK_CPLUSCMD_PCI_DAC	0x0010	/* PCI dual-address cycle only */
    395 #define RTK_CPLUSCMD_RXCSUM_ENB	0x0020	/* enable RX checksum offload */
    396 #define RTK_CPLUSCMD_VLANSTRIP	0x0040	/* enable VLAN tag stripping */
    397 
    398 /* C+ early transmit threshold */
    399 
    400 #define RTK_EARLYTXTHRESH_CNT	0x003F	/* byte count times 8 */
    401 
    402 /*
    403  * Gigabit PHY access register (8169 only)
    404  */
    405 
    406 #define RTK_PHYAR_PHYDATA	0x0000FFFF
    407 #define RTK_PHYAR_PHYREG		0x001F0000
    408 #define RTK_PHYAR_BUSY		0x80000000
    409 
    410 /*
    411  * Gigabit media status (8169 only)
    412  */
    413 #define RTK_GMEDIASTAT_FDX	0x01	/* full duplex */
    414 #define RTK_GMEDIASTAT_LINK	0x02	/* link up */
    415 #define RTK_GMEDIASTAT_10MBPS	0x04	/* 10mps link */
    416 #define RTK_GMEDIASTAT_100MBPS	0x08	/* 100mbps link */
    417 #define RTK_GMEDIASTAT_1000MBPS	0x10	/* gigE link */
    418 #define RTK_GMEDIASTAT_RXFLOW	0x20	/* RX flow control on */
    419 #define RTK_GMEDIASTAT_TXFLOW	0x40	/* TX flow control on */
    420 #define RTK_GMEDIASTAT_TBI	0x80	/* TBI enabled */
    421 
    422 
    423 #define RTK_TX_EARLYTHRESH	((256 / 32) << 16)
    424 #define RTK_RX_FIFOTHRESH	RTK_RXFIFO_256BYTES
    425 #define RTK_RX_MAXDMA		RTK_RXDMA_256BYTES
    426 #define RTK_TX_MAXDMA		RTK_TXDMA_256BYTES
    427 
    428 #define RTK_RXCFG_CONFIG 	(RTK_RX_FIFOTHRESH|RTK_RX_MAXDMA|RTK_RX_BUF_SZ)
    429 #define RTK_TXCFG_CONFIG	(RTK_TXCFG_IFG|RTK_TX_MAXDMA)
    430 
    431 
    432 /*
    433  * RX/TX descriptor definition. When large send mode is enabled, the
    434  * lower 11 bits of the TX rtk_cmd word are used to hold the MSS, and
    435  * the checksum offload bits are disabled. The structure layout is
    436  * the same for RX and TX descriptors
    437  */
    438 
    439 struct re_desc {
    440 	volatile uint32_t	re_cmdstat;
    441 	volatile uint32_t	re_vlanctl;
    442 	volatile uint32_t	re_bufaddr_lo;
    443 	volatile uint32_t	re_bufaddr_hi;
    444 };
    445 
    446 #define RE_TDESC_CMD_FRAGLEN	0x0000FFFF
    447 #define RE_TDESC_CMD_TCPCSUM	0x00010000	/* TCP checksum enable */
    448 #define RE_TDESC_CMD_UDPCSUM	0x00020000	/* UDP checksum enable */
    449 #define RE_TDESC_CMD_IPCSUM	0x00040000	/* IP header checksum enable */
    450 #define RE_TDESC_CMD_MSSVAL	0x07FF0000	/* Large send MSS value */
    451 #define RE_TDESC_CMD_MSSVAL_SHIFT 16		/* Shift of the above */
    452 #define RE_TDESC_CMD_LGSEND	0x08000000	/* TCP large send enb */
    453 #define RE_TDESC_CMD_EOF	0x10000000	/* end of frame marker */
    454 #define RE_TDESC_CMD_SOF	0x20000000	/* start of frame marker */
    455 #define RE_TDESC_CMD_EOR	0x40000000	/* end of ring marker */
    456 #define RE_TDESC_CMD_OWN	0x80000000	/* chip owns descriptor */
    457 
    458 #define RE_TDESC_VLANCTL_TAG	0x00020000	/* Insert VLAN tag */
    459 #define RE_TDESC_VLANCTL_DATA	0x0000FFFF	/* TAG data */
    460 
    461 /*
    462  * Error bits are valid only on the last descriptor of a frame
    463  * (i.e. RE_TDESC_CMD_EOF == 1)
    464  */
    465 
    466 #define RE_TDESC_STAT_COLCNT	0x000F0000	/* collision count */
    467 #define RE_TDESC_STAT_EXCESSCOL	0x00100000	/* excessive collisions */
    468 #define RE_TDESC_STAT_LINKFAIL	0x00200000	/* link faulure */
    469 #define RE_TDESC_STAT_OWINCOL	0x00400000	/* out-of-window collision */
    470 #define RE_TDESC_STAT_TXERRSUM	0x00800000	/* transmit error summary */
    471 #define RE_TDESC_STAT_UNDERRUN	0x02000000	/* TX underrun occurred */
    472 #define RE_TDESC_STAT_OWN	0x80000000
    473 
    474 /*
    475  * RX descriptor cmd/vlan definitions
    476  */
    477 
    478 #define RE_RDESC_CMD_EOR	0x40000000
    479 #define RE_RDESC_CMD_OWN	0x80000000
    480 #define RE_RDESC_CMD_BUFLEN	0x00001FFF
    481 
    482 #define RE_RDESC_STAT_OWN	0x80000000
    483 #define RE_RDESC_STAT_EOR	0x40000000
    484 #define RE_RDESC_STAT_SOF	0x20000000
    485 #define RE_RDESC_STAT_EOF	0x10000000
    486 #define RE_RDESC_STAT_FRALIGN	0x08000000	/* frame alignment error */
    487 #define RE_RDESC_STAT_MCAST	0x04000000	/* multicast pkt received */
    488 #define RE_RDESC_STAT_UCAST	0x02000000	/* unicast pkt received */
    489 #define RE_RDESC_STAT_BCAST	0x01000000	/* broadcast pkt received */
    490 #define RE_RDESC_STAT_BUFOFLOW	0x00800000	/* out of buffer space */
    491 #define RE_RDESC_STAT_FIFOOFLOW	0x00400000	/* FIFO overrun */
    492 #define RE_RDESC_STAT_GIANT	0x00200000	/* pkt > 4096 bytes */
    493 #define RE_RDESC_STAT_RXERRSUM	0x00100000	/* RX error summary */
    494 #define RE_RDESC_STAT_RUNT	0x00080000	/* runt packet received */
    495 #define RE_RDESC_STAT_CRCERR	0x00040000	/* CRC error */
    496 #define RE_RDESC_STAT_PROTOID	0x00030000	/* Protocol type */
    497 #define RE_RDESC_STAT_IPSUMBAD	0x00008000	/* IP header checksum bad */
    498 #define RE_RDESC_STAT_UDPSUMBAD	0x00004000	/* UDP checksum bad */
    499 #define RE_RDESC_STAT_TCPSUMBAD	0x00002000	/* TCP checksum bad */
    500 #define RE_RDESC_STAT_FRAGLEN	0x00001FFF	/* RX'ed frame/frag len */
    501 #define RE_RDESC_STAT_GFRAGLEN	0x00003FFF	/* RX'ed frame/frag len */
    502 
    503 #define RE_RDESC_VLANCTL_TAG	0x00010000	/* VLAN tag available
    504 						   (re_vlandata valid)*/
    505 #define RE_RDESC_VLANCTL_DATA	0x0000FFFF	/* TAG data */
    506 
    507 #define RE_PROTOID_NONIP	0x00000000
    508 #define RE_PROTOID_TCPIP	0x00010000
    509 #define RE_PROTOID_UDPIP	0x00020000
    510 #define RE_PROTOID_IP		0x00030000
    511 #define RE_TCPPKT(x)		(((x) & RE_RDESC_STAT_PROTOID) == \
    512 				 RE_PROTOID_TCPIP)
    513 #define RE_UDPPKT(x)		(((x) & RE_RDESC_STAT_PROTOID) == \
    514 				 RE_PROTOID_UDPIP)
    515 
    516 #define RE_ADDR_LO(y)		((uint64_t)(y) & 0xFFFFFFFF)
    517 #define RE_ADDR_HI(y)		((uint64_t)(y) >> 32)
    518 
    519 /*
    520  * Statistics counter structure (8139C+ and 8169 only)
    521  */
    522 struct re_stats {
    523 	uint32_t		re_tx_pkts_lo;
    524 	uint32_t		re_tx_pkts_hi;
    525 	uint32_t		re_tx_errs_lo;
    526 	uint32_t		re_tx_errs_hi;
    527 	uint32_t		re_tx_errs;
    528 	uint16_t		re_missed_pkts;
    529 	uint16_t		re_rx_framealign_errs;
    530 	uint32_t		re_tx_onecoll;
    531 	uint32_t		re_tx_multicolls;
    532 	uint32_t		re_rx_ucasts_hi;
    533 	uint32_t		re_rx_ucasts_lo;
    534 	uint32_t		re_rx_bcasts_lo;
    535 	uint32_t		re_rx_bcasts_hi;
    536 	uint32_t		re_rx_mcasts;
    537 	uint16_t		re_tx_aborts;
    538 	uint16_t		re_rx_underruns;
    539 };
    540 
    541 #define RE_IFQ_MAXLEN		512
    542 
    543 #define RE_JUMBO_FRAMELEN	9018
    544 #define RE_JUMBO_MTU		(RE_JUMBO_FRAMELEN-ETHER_HDR_LEN-ETHER_CRC_LEN)
    545