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if_wmreg.h revision 1.10.4.2
      1 /*	$NetBSD: if_wmreg.h,v 1.10.4.2 2005/01/08 08:57:26 jdc Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2001 Wasabi Systems, Inc.
      5  * All rights reserved.
      6  *
      7  * Written by Jason R. Thorpe for Wasabi Systems, Inc.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. All advertising materials mentioning features or use of this software
     18  *    must display the following acknowledgement:
     19  *	This product includes software developed for the NetBSD Project by
     20  *	Wasabi Systems, Inc.
     21  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
     22  *    or promote products derived from this software without specific prior
     23  *    written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
     26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     28  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
     29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     35  * POSSIBILITY OF SUCH DAMAGE.
     36  */
     37 
     38 /*
     39  * Register description for the Intel i82542 (``Wiseman''),
     40  * i82543 (``Livengood''), and i82544 (``Cordova'') Gigabit
     41  * Ethernet chips.
     42  */
     43 
     44 /*
     45  * The wiseman supports 64-bit PCI addressing.  This structure
     46  * describes the address in descriptors.
     47  */
     48 typedef struct wiseman_addr {
     49 	uint32_t	wa_low;		/* low-order 32 bits */
     50 	uint32_t	wa_high;	/* high-order 32 bits */
     51 } __attribute__((__packed__)) wiseman_addr_t;
     52 
     53 /*
     54  * The Wiseman receive descriptor.
     55  *
     56  * The receive descriptor ring must be aligned to a 4K boundary,
     57  * and there must be an even multiple of 8 descriptors in the ring.
     58  */
     59 typedef struct wiseman_rxdesc {
     60 	wiseman_addr_t	wrx_addr;	/* buffer address */
     61 
     62 	uint16_t	wrx_len;	/* buffer length */
     63 	uint16_t	wrx_cksum;	/* checksum (starting at PCSS) */
     64 
     65 	uint8_t		wrx_status;	/* Rx status */
     66 	uint8_t		wrx_errors;	/* Rx errors */
     67 	uint16_t	wrx_special;	/* special field (VLAN, etc.) */
     68 } __attribute__((__packed__)) wiseman_rxdesc_t;
     69 
     70 /* wrx_status bits */
     71 #define	WRX_ST_DD	(1U << 0)	/* descriptor done */
     72 #define	WRX_ST_EOP	(1U << 1)	/* end of packet */
     73 #define	WRX_ST_ISXM	(1U << 2)	/* ignore checksum indication */
     74 #define	WRX_ST_VP	(1U << 3)	/* VLAN packet */
     75 #define	WRX_ST_BPDU	(1U << 4)	/* ??? */
     76 #define	WRX_ST_TCPCS	(1U << 5)	/* TCP checksum performed */
     77 #define	WRX_ST_IPCS	(1U << 6)	/* IP checksum performed */
     78 #define	WRX_ST_PIF	(1U << 7)	/* passed in-exact filter */
     79 
     80 /* wrx_error bits */
     81 #define	WRX_ER_CE	(1U << 0)	/* CRC error */
     82 #define	WRX_ER_SE	(1U << 1)	/* symbol error */
     83 #define	WRX_ER_SEQ	(1U << 2)	/* sequence error */
     84 #define	WRX_ER_ICE	(1U << 3)	/* ??? */
     85 #define	WRX_ER_CXE	(1U << 4)	/* carrier extension error */
     86 #define	WRX_ER_TCPE	(1U << 5)	/* TCP checksum error */
     87 #define	WRX_ER_IPE	(1U << 6)	/* IP checksum error */
     88 #define	WRX_ER_RXE	(1U << 7)	/* Rx data error */
     89 
     90 /* wrx_special field for VLAN packets */
     91 #define	WRX_VLAN_ID(x)	((x) & 0x0fff)	/* VLAN identifier */
     92 #define	WRX_VLAN_CFI	(1U << 12)	/* Canonical Form Indicator */
     93 #define	WRX_VLAN_PRI(x)	(((x) >> 13) & 7)/* VLAN priority field */
     94 
     95 /*
     96  * The Wiseman transmit descriptor.
     97  *
     98  * The transmit descriptor ring must be aligned to a 4K boundary,
     99  * and there must be an even multiple of 8 descriptors in the ring.
    100  */
    101 typedef struct wiseman_tx_fields {
    102 	uint8_t wtxu_status;		/* Tx status */
    103 	uint8_t wtxu_options;		/* options */
    104 	uint16_t wtxu_vlan;		/* VLAN info */
    105 } __attribute__((__packed__)) wiseman_txfields_t;
    106 typedef struct wiseman_txdesc {
    107 	wiseman_addr_t	wtx_addr;	/* buffer address */
    108 	uint32_t	wtx_cmdlen;	/* command and length */
    109 	wiseman_txfields_t wtx_fields;	/* fields; see below */
    110 } __attribute__((__packed__)) wiseman_txdesc_t;
    111 
    112 /* Commands for wtx_cmdlen */
    113 #define	WTX_CMD_EOP	(1U << 24)	/* end of packet */
    114 #define	WTX_CMD_IFCS	(1U << 25)	/* insert FCS */
    115 #define	WTX_CMD_RS	(1U << 27)	/* report status */
    116 #define	WTX_CMD_RPS	(1U << 28)	/* report packet sent */
    117 #define	WTX_CMD_DEXT	(1U << 29)	/* descriptor extension */
    118 #define	WTX_CMD_VLE	(1U << 30)	/* VLAN enable */
    119 #define	WTX_CMD_IDE	(1U << 31)	/* interrupt delay enable */
    120 
    121 /* Descriptor types (if DEXT is set) */
    122 #define	WTX_DTYP_C	(0U << 20)	/* context */
    123 #define	WTX_DTYP_D	(1U << 20)	/* data */
    124 
    125 /* wtx_fields status bits */
    126 #define	WTX_ST_DD	(1U << 0)	/* descriptor done */
    127 #define	WTX_ST_EC	(1U << 1)	/* excessive collisions */
    128 #define	WTX_ST_LC	(1U << 2)	/* late collision */
    129 #define	WTX_ST_TU	(1U << 3)	/* transmit underrun */
    130 
    131 /* wtx_fields option bits for IP/TCP/UDP checksum offload */
    132 #define	WTX_IXSM	(1U << 0)	/* IP checksum offload */
    133 #define	WTX_TXSM	(1U << 1)	/* TCP/UDP checksum offload */
    134 
    135 /*
    136  * The Livengood TCP/IP context descriptor.
    137  */
    138 struct livengood_tcpip_ctxdesc {
    139 	uint32_t	tcpip_ipcs;	/* IP checksum context */
    140 	uint32_t	tcpip_tucs;	/* TCP/UDP checksum context */
    141 	uint32_t	tcpip_cmdlen;
    142 	uint32_t	tcpip_seg;	/* TCP segmentation context */
    143 };
    144 
    145 /* commands for context descriptors */
    146 #define	WTX_TCPIP_CMD_TCP	(1U << 24)	/* 1 = TCP, 0 = UDP */
    147 #define	WTX_TCPIP_CMD_IP	(1U << 25)	/* 1 = IPv4, 0 = IPv6 */
    148 #define	WTX_TCPIP_CMD_TSE	(1U << 26)	/* segmentation context valid */
    149 
    150 #define	WTX_TCPIP_IPCSS(x)	((x) << 0)	/* checksum start */
    151 #define	WTX_TCPIP_IPCSO(x)	((x) << 8)	/* checksum value offset */
    152 #define	WTX_TCPIP_IPCSE(x)	((x) << 16)	/* checksum end */
    153 
    154 #define	WTX_TCPIP_TUCSS(x)	((x) << 0)	/* checksum start */
    155 #define	WTX_TCPIP_TUCSO(x)	((x) << 8)	/* checksum value offset */
    156 #define	WTX_TCPIP_TUCSE(x)	((x) << 16)	/* checksum end */
    157 
    158 #define	WTX_TCPIP_SEG_STATUS(x)	((x) << 0)
    159 #define	WTX_TCPIP_SEG_HDRLEN(x)	((x) << 8)
    160 #define	WTX_TCPIP_SEG_MSS(x)	((x) << 16)
    161 
    162 /*
    163  * PCI config registers used by the Wiseman.
    164  */
    165 #define	WM_PCI_MMBA	PCI_MAPREG_START
    166 
    167 /*
    168  * Wiseman Control/Status Registers.
    169  */
    170 #define	WMREG_CTRL	0x0000	/* Device Control Register */
    171 #define	CTRL_FD		(1U << 0)	/* full duplex */
    172 #define	CTRL_BEM	(1U << 1)	/* big-endian mode */
    173 #define	CTRL_PRIOR	(1U << 2)	/* 0 = receive, 1 = fair */
    174 #define	CTRL_LRST	(1U << 3)	/* link reset */
    175 #define	CTRL_ASDE	(1U << 5)	/* auto speed detect enable */
    176 #define	CTRL_SLU	(1U << 6)	/* set link up */
    177 #define	CTRL_ILOS	(1U << 7)	/* invert loss of signal */
    178 #define	CTRL_SPEED(x)	((x) << 8)	/* speed (Livengood) */
    179 #define	CTRL_SPEED_10	CTRL_SPEED(0)
    180 #define	CTRL_SPEED_100	CTRL_SPEED(1)
    181 #define	CTRL_SPEED_1000	CTRL_SPEED(2)
    182 #define	CTRL_SPEED_MASK	CTRL_SPEED(3)
    183 #define	CTRL_FRCSPD	(1U << 11)	/* force speed (Livengood) */
    184 #define	CTRL_FRCFDX	(1U << 12)	/* force full-duplex (Livengood) */
    185 #define	CTRL_SWDPINS_SHIFT	18
    186 #define	CTRL_SWDPINS_MASK	0x0f
    187 #define	CTRL_SWDPIN(x)		(1U << (CTRL_SWDPINS_SHIFT + (x)))
    188 #define	CTRL_SWDPIO_SHIFT	22
    189 #define	CTRL_SWDPIO_MASK	0x0f
    190 #define	CTRL_SWDPIO(x)		(1U << (CTRL_SWDPIO_SHIFT + (x)))
    191 #define	CTRL_RST	(1U << 26)	/* device reset */
    192 #define	CTRL_RFCE	(1U << 27)	/* Rx flow control enable */
    193 #define	CTRL_TFCE	(1U << 28)	/* Tx flow control enable */
    194 #define	CTRL_VME	(1U << 30)	/* VLAN Mode Enable */
    195 #define	CTRL_PHY_RESET	(1U << 31)	/* PHY reset (Cordova) */
    196 
    197 #define	WMREG_CTRL_SHADOW 0x0004	/* Device Control Register (shadow) */
    198 
    199 #define	WMREG_STATUS	0x0008	/* Device Status Register */
    200 #define	STATUS_FD	(1U << 0)	/* full duplex */
    201 #define	STATUS_LU	(1U << 1)	/* link up */
    202 #define	STATUS_TCKOK	(1U << 2)	/* Tx clock running */
    203 #define	STATUS_RBCOK	(1U << 3)	/* Rx clock running */
    204 #define	STATUS_FUNCID_SHIFT 2		/* 82546 function ID */
    205 #define	STATUS_FUNCID_MASK  3		/* ... */
    206 #define	STATUS_TXOFF	(1U << 4)	/* Tx paused */
    207 #define	STATUS_TBIMODE	(1U << 5)	/* fiber mode (Livengood) */
    208 #define	STATUS_SPEED(x)	((x) << 6)	/* speed indication */
    209 #define	STATUS_SPEED_10	  STATUS_SPEED(0)
    210 #define	STATUS_SPEED_100  STATUS_SPEED(1)
    211 #define	STATUS_SPEED_1000 STATUS_SPEED(2)
    212 #define	STATUS_ASDV(x)	((x) << 8)	/* auto speed det. val. (Livengood) */
    213 #define	STATUS_MTXCKOK	(1U << 10)	/* MTXD clock running */
    214 #define	STATUS_PCI66	(1U << 11)	/* 66MHz bus (Livengood) */
    215 #define	STATUS_BUS64	(1U << 12)	/* 64-bit bus (Livengood) */
    216 #define	STATUS_PCIX_MODE (1U << 13)	/* PCIX mode (Cordova) */
    217 #define	STATUS_PCIXSPD(x) ((x) << 14)	/* PCIX speed indication (Cordova) */
    218 #define	STATUS_PCIXSPD_50_66   STATUS_PCIXSPD(0)
    219 #define	STATUS_PCIXSPD_66_100  STATUS_PCIXSPD(1)
    220 #define	STATUS_PCIXSPD_100_133 STATUS_PCIXSPD(2)
    221 #define	STATUS_PCIXSPD_MASK    STATUS_PCIXSPD(3)
    222 
    223 #define	WMREG_EECD	0x0010	/* EEPROM Control Register */
    224 #define	EECD_SK		(1U << 0)	/* clock */
    225 #define	EECD_CS		(1U << 1)	/* chip select */
    226 #define	EECD_DI		(1U << 2)	/* data in */
    227 #define	EECD_DO		(1U << 3)	/* data out */
    228 #define	EECD_FWE(x)	((x) << 4)	/* flash write enable control */
    229 #define	EECD_FWE_DISABLED EECD_FWE(1)
    230 #define	EECD_FWE_ENABLED  EECD_FWE(2)
    231 #define	EECD_EE_REQ	(1U << 6)	/* (shared) EEPROM request */
    232 #define	EECD_EE_GNT	(1U << 7)	/* (shared) EEPROM grant */
    233 #define	EECD_EE_PRES	(1U << 8)	/* EEPROM present */
    234 #define	EECD_EE_SIZE	(1U << 9)	/* EEPROM size
    235 					   (0 = 64 word, 1 = 256 word) */
    236 #define	EECD_EE_ABITS	(1U << 10)	/* EEPROM address bits
    237 					   (based on type) */
    238 #define	EECD_EE_TYPE	(1U << 13)	/* EEPROM type
    239 					   (0 = Microwire, 1 = SPI) */
    240 
    241 #define	UWIRE_OPC_ERASE	0x04		/* MicroWire "erase" opcode */
    242 #define	UWIRE_OPC_WRITE	0x05		/* MicroWire "write" opcode */
    243 #define	UWIRE_OPC_READ	0x06		/* MicroWire "read" opcode */
    244 
    245 #define	SPI_OPC_WRITE	0x02		/* SPI "write" opcode */
    246 #define	SPI_OPC_READ	0x03		/* SPI "read" opcode */
    247 #define	SPI_OPC_A8	0x08		/* opcode bit 3 == address bit 8 */
    248 #define	SPI_OPC_WREN	0x06		/* SPI "set write enable" opcode */
    249 #define	SPI_OPC_WRDI	0x04		/* SPI "clear write enable" opcode */
    250 #define	SPI_OPC_RDSR	0x05		/* SPI "read status" opcode */
    251 #define	SPI_OPC_WRSR	0x01		/* SPI "write status" opcode */
    252 #define	SPI_MAX_RETRIES	5000		/* max wait of 5ms for RDY signal */
    253 
    254 #define	SPI_SR_RDY	0x01
    255 #define	SPI_SR_WEN	0x02
    256 #define	SPI_SR_BP0	0x04
    257 #define	SPI_SR_BP1	0x08
    258 #define	SPI_SR_WPEN	0x80
    259 
    260 #define	EEPROM_OFF_MACADDR	0x00	/* MAC address offset */
    261 #define	EEPROM_OFF_CFG1		0x0a	/* config word 1 */
    262 #define	EEPROM_OFF_CFG2		0x0f	/* config word 2 */
    263 #define	EEPROM_OFF_SWDPIN	0x20	/* SWD Pins (Cordova) */
    264 
    265 #define	EEPROM_CFG1_LVDID	(1U << 0)
    266 #define	EEPROM_CFG1_LSSID	(1U << 1)
    267 #define	EEPROM_CFG1_PME_CLOCK	(1U << 2)
    268 #define	EEPROM_CFG1_PM		(1U << 3)
    269 #define	EEPROM_CFG1_ILOS	(1U << 4)
    270 #define	EEPROM_CFG1_SWDPIO_SHIFT 5
    271 #define	EEPROM_CFG1_SWDPIO_MASK	(0xf << EEPROM_CFG1_SWDPIO_SHIFT)
    272 #define	EEPROM_CFG1_IPS1	(1U << 8)
    273 #define	EEPROM_CFG1_LRST	(1U << 9)
    274 #define	EEPROM_CFG1_FD		(1U << 10)
    275 #define	EEPROM_CFG1_FRCSPD	(1U << 11)
    276 #define	EEPROM_CFG1_IPS0	(1U << 12)
    277 #define	EEPROM_CFG1_64_32_BAR	(1U << 13)
    278 
    279 #define	EEPROM_CFG2_CSR_RD_SPLIT (1U << 1)
    280 #define	EEPROM_CFG2_APM_EN	(1U << 2)
    281 #define	EEPROM_CFG2_64_BIT	(1U << 3)
    282 #define	EEPROM_CFG2_MAX_READ	(1U << 4)
    283 #define	EEPROM_CFG2_DMCR_MAP	(1U << 5)
    284 #define	EEPROM_CFG2_133_CAP	(1U << 6)
    285 #define	EEPROM_CFG2_MSI_DIS	(1U << 7)
    286 #define	EEPROM_CFG2_FLASH_DIS	(1U << 8)
    287 #define	EEPROM_CFG2_FLASH_SIZE(x) (((x) & 3) >> 9)
    288 #define	EEPROM_CFG2_ANE		(1U << 11)
    289 #define	EEPROM_CFG2_PAUSE(x)	(((x) & 3) >> 12)
    290 #define	EEPROM_CFG2_ASDE	(1U << 14)
    291 #define	EEPROM_CFG2_APM_PME	(1U << 15)
    292 #define	EEPROM_CFG2_SWDPIO_SHIFT 4
    293 #define	EEPROM_CFG2_SWDPIO_MASK	(0xf << EEPROM_CFG2_SWDPIO_SHIFT)
    294 
    295 #define	EEPROM_SWDPIN_MASK	0xdf
    296 #define	EEPROM_SWDPIN_SWDPIN_SHIFT 0
    297 #define	EEPROM_SWDPIN_SWDPIO_SHIFT 8
    298 
    299 #define	WMREG_CTRL_EXT	0x0018	/* Extended Device Control Register */
    300 #define	CTRL_EXT_GPI_EN(x)	(1U << (x)) /* gpin interrupt enable */
    301 #define	CTRL_EXT_SWDPINS_SHIFT	4
    302 #define	CTRL_EXT_SWDPINS_MASK	0x0d
    303 #define	CTRL_EXT_SWDPIN(x)	(1U << (CTRL_EXT_SWDPINS_SHIFT + (x) - 4))
    304 #define	CTRL_EXT_SWDPIO_SHIFT	8
    305 #define	CTRL_EXT_SWDPIO_MASK	0x0d
    306 #define	CTRL_EXT_SWDPIO(x)	(1U << (CTRL_EXT_SWDPIO_SHIFT + (x) - 4))
    307 #define	CTRL_EXT_ASDCHK		(1U << 12) /* ASD check */
    308 #define	CTRL_EXT_EE_RST		(1U << 13) /* EEPROM reset */
    309 #define	CTRL_EXT_IPS		(1U << 14) /* invert power state bit 0 */
    310 #define	CTRL_EXT_SPD_BYPS	(1U << 15) /* speed select bypass */
    311 #define	CTRL_EXT_IPS1		(1U << 16) /* invert power state bit 1 */
    312 #define	CTRL_EXT_RO_DIS		(1U << 17) /* relaxed ordering disabled */
    313 
    314 #define	WMREG_MDIC	0x0020	/* MDI Control Register */
    315 #define	MDIC_DATA(x)	((x) & 0xffff)
    316 #define	MDIC_REGADD(x)	((x) << 16)
    317 #define	MDIC_PHYADD(x)	((x) << 21)
    318 #define	MDIC_OP_WRITE	(1U << 26)
    319 #define	MDIC_OP_READ	(2U << 26)
    320 #define	MDIC_READY	(1U << 28)
    321 #define	MDIC_I		(1U << 29)	/* interrupt on MDI complete */
    322 #define	MDIC_E		(1U << 30)	/* MDI error */
    323 
    324 #define	WMREG_FCAL	0x0028	/* Flow Control Address Low */
    325 #define	FCAL_CONST	0x00c28001	/* Flow Control MAC addr low */
    326 
    327 #define	WMREG_FCAH	0x002c	/* Flow Control Address High */
    328 #define	FCAH_CONST	0x00000100	/* Flow Control MAC addr high */
    329 
    330 #define	WMREG_FCT	0x0030	/* Flow Control Type */
    331 
    332 #define	WMREG_VET	0x0038	/* VLAN Ethertype */
    333 
    334 #define	WMREG_RAL_BASE	0x0040	/* Receive Address List */
    335 #define	WMREG_CORDOVA_RAL_BASE 0x5400
    336 #define	WMREG_RAL_LO(b, x) ((b) + ((x) << 3))
    337 #define	WMREG_RAL_HI(b, x) (WMREG_RAL_LO(b, x) + 4)
    338 	/*
    339 	 * Receive Address List: The LO part is the low-order 32-bits
    340 	 * of the MAC address.  The HI part is the high-order 16-bits
    341 	 * along with a few control bits.
    342 	 */
    343 #define	RAL_AS(x)	((x) << 16)	/* address select */
    344 #define	RAL_AS_DEST	RAL_AS(0)	/* (cordova?) */
    345 #define	RAL_AS_SOURCE	RAL_AS(1)	/* (cordova?) */
    346 #define	RAL_RDR1	(1U << 30)	/* put packet in alt. rx ring */
    347 #define	RAL_AV		(1U << 31)	/* entry is valid */
    348 
    349 #define	WM_RAL_TABSIZE	16
    350 
    351 #define	WMREG_ICR	0x00c0	/* Interrupt Cause Register */
    352 #define	ICR_TXDW	(1U << 0)	/* Tx desc written back */
    353 #define	ICR_TXQE	(1U << 1)	/* Tx queue empty */
    354 #define	ICR_LSC		(1U << 2)	/* link status change */
    355 #define	ICR_RXSEQ	(1U << 3)	/* receive sequence error */
    356 #define	ICR_RXDMT0	(1U << 4)	/* Rx ring 0 nearly empty */
    357 #define	ICR_RXO		(1U << 6)	/* Rx overrun */
    358 #define	ICR_RXT0	(1U << 7)	/* Rx ring 0 timer */
    359 #define	ICR_MDAC	(1U << 9)	/* MDIO access complete */
    360 #define	ICR_RXCFG	(1U << 10)	/* Receiving /C/ */
    361 #define	ICR_GPI(x)	(1U << (x))	/* general purpose interrupts */
    362 
    363 #define	WMREG_ICS	0x00c8	/* Interrupt Cause Set Register */
    364 	/* See ICR bits. */
    365 
    366 #define	WMREG_IMS	0x00d0	/* Interrupt Mask Set Register */
    367 	/* See ICR bits. */
    368 
    369 #define	WMREG_IMC	0x00d8	/* Interrupt Mask Clear Register */
    370 	/* See ICR bits. */
    371 
    372 #define	WMREG_RCTL	0x0100	/* Receive Control */
    373 #define	RCTL_EN		(1U << 1)	/* receiver enable */
    374 #define	RCTL_SBP	(1U << 2)	/* store bad packets */
    375 #define	RCTL_UPE	(1U << 3)	/* unicast promisc. enable */
    376 #define	RCTL_MPE	(1U << 4)	/* multicast promisc. enable */
    377 #define	RCTL_LPE	(1U << 5)	/* large packet enable */
    378 #define	RCTL_LBM(x)	((x) << 6)	/* loopback mode */
    379 #define	RCTL_LBM_NONE	RCTL_LBM(0)
    380 #define	RCTL_LBM_PHY	RCTL_LBM(3)
    381 #define	RCTL_RDMTS(x)	((x) << 8)	/* receive desc. min thresh size */
    382 #define	RCTL_RDMTS_1_2	RCTL_RDMTS(0)
    383 #define	RCTL_RDMTS_1_4	RCTL_RDMTS(1)
    384 #define	RCTL_RDMTS_1_8	RCTL_RDMTS(2)
    385 #define	RCTL_RDMTS_MASK	RCTL_RDMTS(3)
    386 #define	RCTL_MO(x)	((x) << 12)	/* multicast offset */
    387 #define	RCTL_BAM	(1U << 15)	/* broadcast accept mode */
    388 #define	RCTL_2k		(0 << 16)	/* 2k Rx buffers */
    389 #define	RCTL_1k		(1 << 16)	/* 1k Rx buffers */
    390 #define	RCTL_512	(2 << 16)	/* 512 byte Rx buffers */
    391 #define	RCTL_256	(3 << 16)	/* 256 byte Rx buffers */
    392 #define	RCTL_BSEX_16k	(1 << 16)	/* 16k Rx buffers (BSEX) */
    393 #define	RCTL_BSEX_8k	(2 << 16)	/* 8k Rx buffers (BSEX) */
    394 #define	RCTL_BSEX_4k	(3 << 16)	/* 4k Rx buffers (BSEX) */
    395 #define	RCTL_DPF	(1U << 22)	/* discard pause frames */
    396 #define	RCTL_PMCF	(1U << 23)	/* pass MAC control frames */
    397 #define	RCTL_BSEX	(1U << 25)	/* buffer size extension (Livengood) */
    398 #define	RCTL_SECRC	(1U << 26)	/* strip Ethernet CRC */
    399 
    400 #define	WMREG_OLD_RDTR0	0x0108	/* Receive Delay Timer (ring 0) */
    401 #define	WMREG_RDTR	0x2820
    402 #define	RDTR_FPD	(1U << 31)	/* flush partial descriptor */
    403 
    404 #define	WMREG_OLD_RDBAL0 0x0110	/* Receive Descriptor Base Low (ring 0) */
    405 #define	WMREG_RDBAL	0x2800
    406 
    407 #define	WMREG_OLD_RDBAH0 0x0114	/* Receive Descriptor Base High (ring 0) */
    408 #define	WMREG_RDBAH	0x2804
    409 
    410 #define	WMREG_OLD_RDLEN0 0x0118	/* Receive Descriptor Length (ring 0) */
    411 #define	WMREG_RDLEN	0x2808
    412 
    413 #define	WMREG_OLD_RDH0	0x0120	/* Receive Descriptor Head (ring 0) */
    414 #define	WMREG_RDH	0x2810
    415 
    416 #define	WMREG_OLD_RDT0	0x0128	/* Receive Descriptor Tail (ring 0) */
    417 #define	WMREG_RDT	0x2818
    418 
    419 #define	WMREG_RXDCTL	0x2828	/* Receive Descriptor Control */
    420 #define	RXDCTL_PTHRESH(x) ((x) << 0)	/* prefetch threshold */
    421 #define	RXDCTL_HTHRESH(x) ((x) << 8)	/* host threshold */
    422 #define	RXDCTL_WTHRESH(x) ((x) << 16)	/* write back threshold */
    423 #define	RXDCTL_GRAN	(1U << 24)	/* 0 = cacheline, 1 = descriptor */
    424 
    425 #define	WMREG_OLD_RDTR1	0x0130	/* Receive Delay Timer (ring 1) */
    426 
    427 #define	WMREG_OLD_RDBA1_LO 0x0138 /* Receive Descriptor Base Low (ring 1) */
    428 
    429 #define	WMREG_OLD_RDBA1_HI 0x013c /* Receive Descriptor Base High (ring 1) */
    430 
    431 #define	WMREG_OLD_RDLEN1 0x0140	/* Receive Drscriptor Length (ring 1) */
    432 
    433 #define	WMREG_OLD_RDH1	0x0148
    434 
    435 #define	WMREG_OLD_RDT1	0x0150
    436 
    437 #define	WMREG_OLD_FCRTH 0x0160	/* Flow Control Rx Threshold Hi (OLD) */
    438 #define	WMREG_FCRTL	0x2160	/* Flow Control Rx Threshold Lo */
    439 #define	FCRTH_DFLT	0x00008000
    440 
    441 #define	WMREG_OLD_FCRTL 0x0168	/* Flow Control Rx Threshold Lo (OLD) */
    442 #define	WMREG_FCRTH	0x2168	/* Flow Control Rx Threhsold Hi */
    443 #define	FCRTL_DFLT	0x00004000
    444 
    445 #define	WMREG_FCTTV	0x0170	/* Flow Control Transmit Timer Value */
    446 #define	FCTTV_DFLT	0x00000100
    447 
    448 #define	WMREG_TXCW	0x0178	/* Transmit Configuration Word (TBI mode) */
    449 	/* See MII ANAR_X bits. */
    450 #define	TXCW_TxConfig	(1U << 30)	/* Tx Config */
    451 #define	TXCW_ANE	(1U << 31)	/* Autonegotiate */
    452 
    453 #define	WMREG_RXCW	0x0180	/* Receive Configuration Word (TBI mode) */
    454 	/* See MII ANLPAR_X bits. */
    455 #define	RXCW_NC		(1U << 26)	/* no carrier */
    456 #define	RXCW_IV		(1U << 27)	/* config invalid */
    457 #define	RXCW_CC		(1U << 28)	/* config change */
    458 #define	RXCW_C		(1U << 29)	/* /C/ reception */
    459 #define	RXCW_SYNCH	(1U << 30)	/* synchronized */
    460 #define	RXCW_ANC	(1U << 31)	/* autonegotiation complete */
    461 
    462 #define	WMREG_MTA	0x0200	/* Multicast Table Array */
    463 #define	WMREG_CORDOVA_MTA 0x5200
    464 
    465 #define	WMREG_TCTL	0x0400	/* Transmit Control Register */
    466 #define	TCTL_EN		(1U << 1)	/* transmitter enable */
    467 #define	TCTL_PSP	(1U << 3)	/* pad short packets */
    468 #define	TCTL_CT(x)	(((x) & 0xff) << 4)   /* 4:11 - collision threshold */
    469 #define	TCTL_COLD(x)	(((x) & 0x3ff) << 12) /* 12:21 - collision distance */
    470 #define	TCTL_SWXOFF	(1U << 22)	/* software XOFF */
    471 #define	TCTL_RTLC	(1U << 24)	/* retransmit on late collision */
    472 #define	TCTL_NRTU	(1U << 25)	/* no retransmit on underrun */
    473 
    474 #define	TX_COLLISION_THRESHOLD		15
    475 #define	TX_COLLISION_DISTANCE_HDX	64
    476 #define	TX_COLLISION_DISTANCE_FDX	512
    477 
    478 #define	WMREG_TQSA_LO	0x0408
    479 
    480 #define	WMREG_TQSA_HI	0x040c
    481 
    482 #define	WMREG_TIPG	0x0410	/* Transmit IPG Register */
    483 #define	TIPG_IPGT(x)	(x)		/* IPG transmit time */
    484 #define	TIPG_IPGR1(x)	((x) << 10)	/* IPG receive time 1 */
    485 #define	TIPG_IPGR2(x)	((x) << 20)	/* IPG receive time 2 */
    486 
    487 #define	TIPG_WM_DFLT	(TIPG_IPGT(0x0a) | TIPG_IPGR1(0x02) | TIPG_IPGR2(0x0a))
    488 #define	TIPG_LG_DFLT	(TIPG_IPGT(0x06) | TIPG_IPGR1(0x08) | TIPG_IPGR2(0x06))
    489 #define	TIPG_1000T_DFLT	(TIPG_IPGT(0x08) | TIPG_IPGR1(0x08) | TIPG_IPGR2(0x06))
    490 
    491 #define	WMREG_TQC	0x0418
    492 
    493 #define	WMREG_RDFH	0x2410	/* Receive Data FIFO Head */
    494 
    495 #define	WMREG_RDFT	0x2418	/* Receive Data FIFO Tail */
    496 
    497 #define	WMREG_RDFHS	0x2420	/* Receive Data FIFO Head Saved */
    498 
    499 #define	WMREG_RDFTS	0x2428	/* Receive Data FIFO Tail Saved */
    500 
    501 #define	WMREG_TDFH	0x3410	/* Transmit Data FIFO Head */
    502 
    503 #define	WMREG_TDFT	0x3418	/* Transmit Data FIFO Tail */
    504 
    505 #define	WMREG_TDFHS	0x3420	/* Transmit Data FIFO Head Saved */
    506 
    507 #define	WMREG_TDFTS	0x3428	/* Transmit Data FIFO Tail Saved */
    508 
    509 #define	WMREG_TDFPC	0x3430	/* Transmit Data FIFO Packet Count */
    510 
    511 #define	WMREG_OLD_TBDAL	0x0420	/* Transmit Descriptor Base Lo */
    512 #define	WMREG_TBDAL	0x3800
    513 
    514 #define	WMREG_OLD_TBDAH	0x0424	/* Transmit Descriptor Base Hi */
    515 #define	WMREG_TBDAH	0x3804
    516 
    517 #define	WMREG_OLD_TDLEN	0x0428	/* Transmit Descriptor Length */
    518 #define	WMREG_TDLEN	0x3808
    519 
    520 #define	WMREG_OLD_TDH	0x0430	/* Transmit Descriptor Head */
    521 #define	WMREG_TDH	0x3810
    522 
    523 #define	WMREG_OLD_TDT	0x0438	/* Transmit Descriptor Tail */
    524 #define	WMREG_TDT	0x3818
    525 
    526 #define	WMREG_OLD_TIDV	0x0440	/* Transmit Delay Interrupt Value */
    527 #define	WMREG_TIDV	0x3820
    528 
    529 #define	WMREG_TXDCTL	0x3828	/* Trandmit Descriptor Control */
    530 #define	TXDCTL_PTHRESH(x) ((x) << 0)	/* prefetch threshold */
    531 #define	TXDCTL_HTHRESH(x) ((x) << 8)	/* host threshold */
    532 #define	TXDCTL_WTHRESH(x) ((x) << 16)	/* write back threshold */
    533 
    534 #define	WMREG_AIT	0x0458	/* Adaptive IFS Throttle */
    535 
    536 #define	WMREG_VFTA	0x0600
    537 
    538 #define	WM_MC_TABSIZE	128
    539 #define	WM_VLAN_TABSIZE	128
    540 
    541 #define	WMREG_PBA	0x1000	/* Packet Buffer Allocation */
    542 #define	PBA_BYTE_SHIFT	10		/* KB -> bytes */
    543 #define	PBA_ADDR_SHIFT	7		/* KB -> quadwords */
    544 #define	PBA_16K		0x0010		/* 16K, default Tx allocation */
    545 #define	PBA_22K		0x0016
    546 #define	PBA_24K		0x0018
    547 #define	PBA_30K		0x001e
    548 #define	PBA_40K		0x0028
    549 #define	PBA_48K		0x0030		/* 48K, default Rx allocation */
    550 
    551 #define	WMREG_TXDMAC	0x3000	/* Transfer DMA Control */
    552 #define	TXDMAC_DPP	(1U << 0)	/* disable packet prefetch */
    553 
    554 #define	WMREG_TSPMT	0x3830	/* TCP Segmentation Pad and Minimum
    555 				   Threshold (Cordova) */
    556 #define	TSPMT_TSMT(x)	(x)		/* TCP seg min transfer */
    557 #define	TSPMT_TSPBP(x)	((x) << 16)	/* TCP seg pkt buf padding */
    558 
    559 #define	WMREG_RXCSUM	0x5000	/* Receive Checksum register */
    560 #define	RXCSUM_PCSS	0x000000ff	/* Packet Checksum Start */
    561 #define	RXCSUM_IPOFL	(1U << 8)	/* IP checksum offload */
    562 #define	RXCSUM_TUOFL	(1U << 9)	/* TCP/UDP checksum offload */
    563