NetBSD/sys/dev/pci/if_wmreg.h

517 lines
20 KiB
C

/* $NetBSD: if_wmreg.h,v 1.3 2002/08/08 00:12:08 thorpej Exp $ */
/*
* Copyright (c) 2001 Wasabi Systems, Inc.
* All rights reserved.
*
* Written by Jason R. Thorpe for Wasabi Systems, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed for the NetBSD Project by
* Wasabi Systems, Inc.
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Register description for the Intel i82452 (``Wiseman''),
* i82543 (``Livengood''), and i82544 (``Cordova'') Gigabit
* Ethernet chips.
*/
/*
* The wiseman supports 64-bit PCI addressing. This structure
* describes the address in descriptors.
*/
typedef struct wiseman_addr {
uint32_t wa_low; /* low-order 32 bits */
uint32_t wa_high; /* high-order 32 bits */
} __attribute__((__packed__)) wiseman_addr_t;
/*
* The Wiseman receive descriptor.
*
* The receive descriptor ring must be aligned to a 4K boundary,
* and there must be an even multiple of 8 descriptors in the ring.
*/
typedef struct wiseman_rxdesc {
wiseman_addr_t wrx_addr; /* buffer address */
uint16_t wrx_len; /* buffer length */
uint16_t wrx_cksum; /* checksum (starting at PCSS) */
uint8_t wrx_status; /* Rx status */
uint8_t wrx_errors; /* Rx errors */
uint16_t wrx_special; /* special field (VLAN, etc.) */
} __attribute__((__packed__)) wiseman_rxdesc_t;
/* wrx_status bits */
#define WRX_ST_DD (1U << 0) /* descriptor done */
#define WRX_ST_EOP (1U << 1) /* end of packet */
#define WRX_ST_ISXM (1U << 2) /* ignore checksum indication */
#define WRX_ST_VP (1U << 3) /* VLAN packet */
#define WRX_ST_BPDU (1U << 4) /* ??? */
#define WRX_ST_TCPCS (1U << 5) /* TCP checksum performed */
#define WRX_ST_IPCS (1U << 6) /* IP checksum performed */
#define WRX_ST_PIF (1U << 7) /* passed in-exact filter */
/* wrx_error bits */
#define WRX_ER_CE (1U << 0) /* CRC error */
#define WRX_ER_SE (1U << 1) /* symbol error */
#define WRX_ER_SEQ (1U << 2) /* sequence error */
#define WRX_ER_ICE (1U << 3) /* ??? */
#define WRX_ER_CXE (1U << 4) /* carrier extension error */
#define WRX_ER_TCPE (1U << 5) /* TCP checksum error */
#define WRX_ER_IPE (1U << 6) /* IP checksum error */
#define WRX_ER_RXE (1U << 7) /* Rx data error */
/* wrx_special field for VLAN packets */
#define WRX_VLAN_ID(x) ((x) & 0x0fff) /* VLAN identifier */
#define WRX_VLAN_CFI (1U << 12) /* Canonical Form Indicator */
#define WRX_VLAN_PRI(x) (((x) >> 13) & 7)/* VLAN priority field */
/*
* The Wiseman transmit descriptor.
*
* The transmit descriptor ring must be aligned to a 4K boundary,
* and there must be an even multiple of 8 descriptors in the ring.
*/
typedef union wiseman_tx_fields {
uint32_t wtxu_bits; /* bits; see below; */
struct {
uint8_t wtxu_status; /* Tx status */
uint8_t wtxu_options; /* options */
uint16_t wtxu_vlan; /* VLAN info */
} __attribute__((__packed__)) wtxu_fields;
} __attribute__((__packed__)) wiseman_txfields_t;
typedef struct wiseman_txdesc {
wiseman_addr_t wtx_addr; /* buffer address */
uint32_t wtx_cmdlen; /* command and length */
wiseman_txfields_t wtx_fields; /* fields; see below */
} __attribute__((__packed__)) wiseman_txdesc_t;
#define WTX_CMD_EOP (1U << 24) /* end of packet */
#define WTX_CMD_IFCS (1U << 25) /* insert FCS */
#define WTX_CMD_RS (1U << 27) /* report status */
#define WTX_CMD_RPS (1U << 28) /* report packet sent */
#define WTX_CMD_DEXT (1U << 29) /* descriptor extension */
#define WTX_CMD_VLE (1U << 30) /* VLAN enable */
#define WTX_CMD_IDE (1U << 31) /* interrupt delay enable */
/* Descriptor types (if DEXT is set) */
#define WTX_DTYP_C (0 << 20) /* context */
#define WTC_DTYP_D (1U << 20) /* data */
/* wtx_fields status bits */
#define WTX_ST_DD (1U << 0) /* descriptor done */
#define WTX_ST_EC (1U << 1) /* excessive collisions */
#define WTX_ST_LC (1U << 2) /* late collision */
#define WTX_ST_TU (1U << 3) /* transmit underrun */
/* wtx_fields bits for IP/TCP/UDP checksum offload */
#define WTX_IXSM (1U << 8) /* IP checksum offload */
#define WTX_TXSM (1U << 9) /* TCP/UDP checksum offload */
/*
* The Livengood TCP/IP context descriptor.
*/
struct livengood_tcpip_ctxdesc {
uint32_t tcpip_ipcs; /* IP checksum context */
uint32_t tcpip_tucs; /* TCP/UDP checksum context */
uint32_t tcpip_cmdlen;
uint32_t tcpip_seg; /* TCP segmentation context */
};
/* commands for context descriptors */
#define WTX_TCPIP_CMD_TCP (1U << 24) /* 1 = TCP, 0 = UDP */
#define WTX_TCPIP_CMD_IP (1U << 25) /* 1 = IPv4, 0 = IPv6 */
#define WTX_TCPIP_CMD_TSE (1U << 26) /* segmentation context valid */
#define WTX_TCPIP_IPCSS(x) ((x) << 0) /* checksum start */
#define WTX_TCPIP_IPCSO(x) ((x) << 8) /* checksum value offset */
#define WTX_TCPIP_IPCSE(x) ((x) << 16) /* checksum end */
#define WTX_TCPIP_TUCSS(x) ((x) << 0) /* checksum start */
#define WTX_TCPIP_TUCSO(x) ((x) << 8) /* checksum value offset */
#define WTX_TCPIP_TUCSE(x) ((x) << 16) /* checksum end */
#define WTX_TCPIP_SEG_STATUS(x) ((x) << 0)
#define WTX_TCPIP_SEG_HDRLEN(x) ((x) << 8)
#define WTX_TCPIP_SEG_MSS(x) ((x) << 16)
/*
* PCI config registers used by the Wiseman.
*/
#define WM_PCI_MMBA PCI_MAPREG_START
/*
* Wiseman Control/Status Registers.
*/
#define WMREG_CTRL 0x0000 /* Device Control Register */
#define CTRL_FD (1U << 0) /* full duplex */
#define CTRL_BEM (1U << 1) /* big-endian mode */
#define CTRL_PRIOR (1U << 2) /* 0 = receive, 1 = fair */
#define CTRL_LRST (1U << 3) /* link reset */
#define CTRL_ASDE (1U << 5) /* auto speed detect enable */
#define CTRL_SLU (1U << 6) /* set link up */
#define CTRL_ILOS (1U << 7) /* invert loss of signal */
#define CTRL_SPEED(x) ((x) << 8) /* speed (Livengood) */
#define CTRL_SPEED_10 CTRL_SPEED(0)
#define CTRL_SPEED_100 CTRL_SPEED(1)
#define CTRL_SPEED_1000 CTRL_SPEED(2)
#define CTRL_SPEED_MASK CTRL_SPEED(3)
#define CTRL_FRCSPD (1U << 11) /* force speed (Livengood) */
#define CTRL_FRCFDX (1U << 12) /* force full-duplex (Livengood) */
#define CTRL_SWDPINS_SHIFT 18
#define CTRL_SWDPINS_MASK 0x0f
#define CTRL_SWDPIN(x) (1U << (CTRL_SWDPINS_SHIFT + (x)))
#define CTRL_SWDPIO_SHIFT 22
#define CTRL_SWDPIO_MASK 0x0f
#define CTRL_SWDPIO(x) (1U << (CTRL_SWDPIO_SHIFT + (x)))
#define CTRL_RST (1U << 26) /* device reset */
#define CTRL_RFCE (1U << 27) /* Rx flow control enable */
#define CTRL_TFCE (1U << 28) /* Tx flow control enable */
#define CTRL_VME (1U << 30) /* VLAN Mode Enable */
#define CTRL_PHY_RESET (1U << 31) /* PHY reset (Cordova) */
#define WMREG_STATUS 0x0008 /* Device Status Register */
#define STATUS_FD (1U << 0) /* full duplex */
#define STATUS_LU (1U << 1) /* link up */
#define STATUS_TCKOK (1U << 2) /* Tx clock running */
#define STATUS_RBCOK (1U << 3) /* Rx clock running */
#define STATUS_FUNCID_SHIFT 2 /* 82546 function ID */
#define STATUS_FUNCID_MASK 3 /* ... */
#define STATUS_TXOFF (1U << 4) /* Tx paused */
#define STATUS_TBIMODE (1U << 5) /* fiber mode (Livengood) */
#define STATUS_SPEED(x) ((x) << 6) /* speed indication */
#define STATUS_SPEED_10 STATUS_SPEED(0)
#define STATUS_SPEED_100 STATUS_SPEED(1)
#define STATUS_SPEED_1000 STATUS_SPEED(2)
#define STATUS_ASDV(x) ((x) << 8) /* auto speed det. val. (Livengood) */
#define STATUS_MTXCKOK (1U << 10) /* MTXD clock running */
#define STATUS_PCI66 (1U << 11) /* 66MHz bus (Livengood) */
#define STATUS_BUS64 (1U << 12) /* 64-bit bus (Livengood) */
#define STATUS_PCIX_MODE (1U << 13) /* PCIX mode (Cordova) */
#define STATUS_PCIXSPD(x) ((x) << 14) /* PCIX speed indication (Cordova) */
#define STATUS_PCIXSPD_50_66 STATUS_PCIXSPD(0)
#define STATUS_PCIXSPD_66_100 STATUS_PCIXSPD(1)
#define STATUS_PCIXSPD_100_133 STATUS_PCIXSPD(2)
#define WMREG_EECD 0x0010 /* EEPROM Control Register */
#define EECD_SK (1U << 0) /* clock */
#define EECD_CS (1U << 1) /* chip select */
#define EECD_DI (1U << 2) /* data in */
#define EECD_DO (1U << 3) /* data out */
#define EECD_FWE(x) ((x) << 4) /* flash write enable control */
#define EECD_FWE_DISABLED EECD_FWE(1)
#define EECD_FWE_ENABLED EECD_FWE(2)
#define EECD_EE_REQ (1U << 6) /* (shared) EEPROM request */
#define EECD_EE_GNT (1U << 7) /* (shared) EEPROM grant */
#define EECD_EE_PRES (1U << 8) /* EEPROM present */
#define EECD_EE_SIZE (1U << 9) /* EEPROM size
(0 = 64 word, 1 = 256 word) */
#define UWIRE_OPC_ERASE 0x04 /* MicroWire "erase" opcode */
#define UWIRE_OPC_WRITE 0x05 /* MicroWire "write" opcode */
#define UWIRE_OPC_READ 0x06 /* MicroWire "read" opcode */
#define EEPROM_OFF_MACADDR 0x00 /* MAC address offset */
#define EEPROM_OFF_CFG1 0x0a /* config word 1 */
#define EEPROM_OFF_CFG2 0x0f /* config word 2 */
#define EEPROM_OFF_SWDPIN 0x20 /* SWD Pins (Cordova) */
#define EEPROM_CFG1_LVDID (1U << 0)
#define EEPROM_CFG1_LSSID (1U << 1)
#define EEPROM_CFG1_PME_CLOCK (1U << 2)
#define EEPROM_CFG1_PM (1U << 3)
#define EEPROM_CFG1_ILOS (1U << 4)
#define EEPROM_CFG1_SWDPIO_SHIFT 5
#define EEPROM_CFG1_SWDPIO_MASK (0xf << EEPROM_CFG1_SWDPIO_SHIFT)
#define EEPROM_CFG1_IPS1 (1U << 8)
#define EEPROM_CFG1_LRST (1U << 9)
#define EEPROM_CFG1_FD (1U << 10)
#define EEPROM_CFG1_FRCSPD (1U << 11)
#define EEPROM_CFG1_IPS0 (1U << 12)
#define EEPROM_CFG1_64_32_BAR (1U << 13)
#define EEPROM_CFG2_CSR_RD_SPLIT (1U << 1)
#define EEPROM_CFG2_APM_EN (1U << 2)
#define EEPROM_CFG2_64_BIT (1U << 3)
#define EEPROM_CFG2_MAX_READ (1U << 4)
#define EEPROM_CFG2_DMCR_MAP (1U << 5)
#define EEPROM_CFG2_133_CAP (1U << 6)
#define EEPROM_CFG2_MSI_DIS (1U << 7)
#define EEPROM_CFG2_FLASH_DIS (1U << 8)
#define EEPROM_CFG2_FLASH_SIZE(x) (((x) & 3) >> 9)
#define EEPROM_CFG2_ANE (1U << 11)
#define EEPROM_CFG2_PAUSE(x) (((x) & 3) >> 12)
#define EEPROM_CFG2_ASDE (1U << 14)
#define EEPROM_CFG2_APM_PME (1U << 15)
#define EEPROM_CFG2_SWDPIO_SHIFT 4
#define EEPROM_CFG2_SWDPIO_MASK (0xf << EEPROM_CFG2_SWDPIO_SHIFT)
#define EEPROM_SWDPIN_MASK 0xdf
#define EEPROM_SWDPIN_SWDPIN_SHIFT 0
#define EEPROM_SWDPIN_SWDPIO_SHIFT 8
#define WMREG_CTRL_EXT 0x0018 /* Extended Device Control Register */
#define CTRL_EXT_GPI_EN(x) (1U << (x)) /* gpin interrupt enable */
#define CTRL_EXT_SWDPINS_SHIFT 4
#define CTRL_EXT_SWDPINS_MASK 0x0d
#define CTRL_EXT_SWDPIN(x) (1U << (CTRL_SWDPINS_SHIFT + (x) - 4))
#define CTRL_EXT_SWDPIO_SHIFT 8
#define CTRL_EXT_SWDPIO_MASK 0x0d
#define CTRL_EXT_SWDPIO(x) (1U << (CTRL_SWDPIO_SHIFT + (x) - 4))
#define CTRL_EXT_ASDCHK (1U << 12) /* ASD check */
#define CTRL_EXT_EE_RST (1U << 13) /* EEPROM reset */
#define CTRL_EXT_IPS (1U << 14) /* invert power state bit 0 */
#define CTRL_EXT_SPD_BYPS (1U << 15) /* speed select bypass */
#define CTRL_EXT_IPS1 (1U << 16) /* invert power state bit 1 */
#define CTRL_EXT_RO_DIS (1U << 17) /* relaxed ordering disabled */
#define WMREG_MDIC 0x0020 /* MDI Control Register */
#define MDIC_DATA(x) ((x) & 0xffff)
#define MDIC_REGADD(x) ((x) << 16)
#define MDIC_PHYADD(x) ((x) << 21)
#define MDIC_OP_WRITE (1U << 26)
#define MDIC_OP_READ (2U << 26)
#define MDIC_READY (1U << 28)
#define MDIC_I (1U << 29) /* interrupt on MDI complete */
#define MDIC_E (1U << 30) /* MDI error */
#define WMREG_FCAL 0x0028 /* Flow Control Address Low */
#define FCAL_CONST 0x00c28001 /* Flow Control MAC addr low */
#define WMREG_FCAH 0x002c /* Flow Control Address High */
#define FCAH_CONST 0x00000100 /* Flow Control MAC addr high */
#define WMREG_FCT 0x0030 /* Flow Control Type */
#define WMREG_VET 0x0038 /* VLAN Ethertype */
#define WMREG_RAL_BASE 0x0040 /* Receive Address List */
#define WMREG_CORDOVA_RAL_BASE 0x5400
#define WMREG_RAL_LO(b, x) ((b) + ((x) << 3))
#define WMREG_RAL_HI(b, x) (WMREG_RAL_LO(b, x) + 4)
/*
* Receive Address List: The LO part is the low-order 32-bits
* of the MAC address. The HI part is the high-order 16-bits
* along with a few control bits.
*/
#define RAL_AS(x) ((x) << 16) /* address select */
#define RAL_AS_DEST RAL_AS(0) /* (cordova?) */
#define RAL_AS_SOURCE RAL_AS(1) /* (cordova?) */
#define RAL_RDR1 (1U << 30) /* put packet in alt. rx ring */
#define RAL_AV (1U << 31) /* entry is valid */
#define WM_RAL_TABSIZE 16
#define WMREG_ICR 0x00c0 /* Interrupt Cause Register */
#define ICR_TXDW (1U << 0) /* Tx desc written back */
#define ICR_TXQE (1U << 1) /* Tx queue empty */
#define ICR_LSC (1U << 2) /* link status change */
#define ICR_RXSEQ (1U << 3) /* receive sequence error */
#define ICR_RXDMT0 (1U << 4) /* Rx ring 0 nearly empty */
#define ICR_RXO (1U << 6) /* Rx overrun */
#define ICR_RXT0 (1U << 7) /* Rx ring 0 timer */
#define ICR_MDAC (1U << 9) /* MDIO access complete */
#define ICR_RXCFG (1U << 10) /* Receiving /C/ */
#define ICR_GPI(x) (1U << (x)) /* general purpose interrupts */
#define WMREG_ICS 0x00c8 /* Interrupt Cause Set Register */
/* See ICR bits. */
#define WMREG_IMS 0x00d0 /* Interrupt Mask Set Register */
/* See ICR bits. */
#define WMREG_IMC 0x00d8 /* Interrupt Mask Clear Register */
/* See ICR bits. */
#define WMREG_RCTL 0x0100 /* Receive Control */
#define RCTL_EN (1U << 1) /* receiver enable */
#define RCTL_SBP (1U << 2) /* store bad packets */
#define RCTL_UPE (1U << 3) /* unicast promisc. enable */
#define RCTL_MPE (1U << 4) /* multicast promisc. enable */
#define RCTL_LPE (1U << 5) /* large packet enable */
#define RCTL_LBM(x) ((x) << 6) /* loopback mode */
#define RCTL_LBM_NONE RCTL_LBM(0)
#define RCTL_LBM_PHY RCTL_LBM(3)
#define RCTL_RDMTS(x) ((x) << 8) /* receive desc. min thresh size */
#define RCTL_RDMTS_1_2 RCTL_RDMTS(0)
#define RCTL_RDMTS_1_4 RCTL_RDMTS(1)
#define RCTL_RDMTS_1_8 RCTL_RDMTS(2)
#define RCTL_RDMTS_MASK RCTL_RDMTS(3)
#define RCTL_MO(x) ((x) << 12) /* multicast offset */
#define RCTL_BAM (1U << 15) /* broadcast accept mode */
#define RCTL_2k (0 << 16) /* 2k Rx buffers */
#define RCTL_1k (1 << 16) /* 1k Rx buffers */
#define RCTL_512 (2 << 16) /* 512 byte Rx buffers */
#define RCTL_256 (3 << 16) /* 256 byte Rx buffers */
#define RCTL_BSEX_16k (1 << 16) /* 16k Rx buffers (BSEX) */
#define RCTL_BSEX_8k (2 << 16) /* 8k Rx buffers (BSEX) */
#define RCTL_BSEX_4k (3 << 16) /* 4k Rx buffers (BSEX) */
#define RCTL_DPF (1U << 22) /* discard pause frames */
#define RCTL_PMCF (1U << 23) /* pass MAC control frames */
#define RCTL_BSEX (1U << 25) /* buffer size extension (Livengood) */
#define RCTL_SECRC (1U << 26) /* strip Ethernet CRC */
#define WMREG_OLD_RDTR0 0x0108 /* Receive Delay Timer (ring 0) */
#define WMREG_RDTR 0x2820
#define RDTR_FPD (1U << 31) /* flush partial descriptor */
#define WMREG_OLD_RDBAL0 0x0110 /* Receive Descriptor Base Low (ring 0) */
#define WMREG_RDBAL 0x2800
#define WMREG_OLD_RDBAH0 0x0114 /* Receive Descriptor Base High (ring 0) */
#define WMREG_RDBAH 0x2804
#define WMREG_OLD_RDLEN0 0x0118 /* Receive Descriptor Length (ring 0) */
#define WMREG_RDLEN 0x2808
#define WMREG_OLD_RDH0 0x0120 /* Receive Descriptor Head (ring 0) */
#define WMREG_RDH 0x2810
#define WMREG_OLD_RDT0 0x0128 /* Receive Descriptor Tail (ring 0) */
#define WMREG_RDT 0x2818
#define WMREG_RXDCTL 0x2828 /* Receive Descriptor Control */
#define RXDCTL_PTHRESH(x) ((x) << 0) /* prefetch threshold */
#define RXDCTL_HTHRESH(x) ((x) << 8) /* host threshold */
#define RXDCTL_WTHRESH(x) ((x) << 16) /* write back threshold */
#define RXDCTL_GRAN (1U << 24) /* 0 = cacheline, 1 = descriptor */
#define WMREG_OLD_RDTR1 0x0130 /* Receive Delay Timer (ring 1) */
#define WMREG_OLD_RDBA1_LO 0x0138 /* Receive Descriptor Base Low (ring 1) */
#define WMREG_OLD_RDBA1_HI 0x013c /* Receive Descriptor Base High (ring 1) */
#define WMREG_OLD_RDLEN1 0x0140 /* Receive Drscriptor Length (ring 1) */
#define WMREG_OLD_RDH1 0x0148
#define WMREG_OLD_RDT1 0x0150
#define WMREG_OLD_FCRTH 0x0160 /* Flow Control Rx Threshold Hi (OLD) */
#define WMREG_FCRTL 0x2160 /* Flow Control Rx Threshold Lo */
#define FCRTH_DFLT 0x00008000
#define WMREG_OLD_FCRTL 0x0168 /* Flow Control Rx Threshold Lo (OLD) */
#define WMREG_FCRTH 0x2168 /* Flow Control Rx Threhsold Hi */
#define FCRTL_DFLT 0x00004000
#define WMREG_FCTTV 0x0170 /* Flow Control Transmit Timer Value */
#define FCTTV_DFLT 0x00000100
#define WMREG_TXCW 0x0178 /* Transmit Configuration Word (TBI mode) */
/* See MII ANAR_X bits. */
#define TXCW_TxConfig (1U << 30) /* Tx Config */
#define TXCW_ANE (1U << 31) /* Autonegotiate */
#define WMREG_RXCW 0x0180 /* Receive Configuration Word (TBI mode) */
/* See MII ANLPAR_X bits. */
#define RXCW_NC (1U << 26) /* no carrier */
#define RXCW_IV (1U << 27) /* config invalid */
#define RXCW_CC (1U << 28) /* config change */
#define RXCW_C (1U << 29) /* /C/ reception */
#define RXCW_SYNCH (1U << 30) /* synchronized */
#define RXCW_ANC (1U << 31) /* autonegotiation complete */
#define WMREG_MTA 0x0200 /* Multicast Table Array */
#define WMREG_CORDOVA_MTA 0x5200
#define WMREG_TCTL 0x0400 /* Transmit Control Register */
#define TCTL_EN (1U << 1) /* transmitter enable */
#define TCTL_PSP (1U << 3) /* pad short packets */
#define TCTL_CT(x) (((x) & 0xff) << 4) /* 4:11 - collision threshold */
#define TCTL_COLD(x) (((x) & 0x3ff) << 12) /* 12:21 - collision distance */
#define TCTL_SWXOFF (1U << 22) /* software XOFF */
#define TCTL_RTLC (1U << 24) /* retransmit on late collision */
#define TCTL_NRTU (1U << 25) /* no retransmit on underrun */
#define TX_COLLISION_THRESHOLD 15
#define TX_COLLISION_DISTANCE_HDX 64
#define TX_COLLISION_DISTANCE_FDX 512
#define WMREG_TQSA_LO 0x0408
#define WMREG_TQSA_HI 0x040c
#define WMREG_TIPG 0x0410 /* Transmit IPG Register */
#define TIPG_IPGT(x) (x) /* IPG transmit time */
#define TIPG_IPGR1(x) ((x) << 10) /* IPG receive time 1 */
#define TIPG_IPGR2(x) ((x) << 20) /* IPG receive time 2 */
#define TIPG_WM_DFLT (TIPG_IPGT(0x0a) | TIPG_IPGR1(0x02) | TIPG_IPGR2(0x0a))
#define TIPG_LG_DFLT (TIPG_IPGT(0x06) | TIPG_IPGR1(0x08) | TIPG_IPGR2(0x06))
#define TIPG_1000T_DFLT (TIPG_IPGT(0x08) | TIPG_IPGR1(0x08) | TIPG_IPGR2(0x06))
#define WMREG_TQC 0x0418
#define WMREG_OLD_TBDAL 0x0420 /* Transmit Descriptor Base Lo */
#define WMREG_TBDAL 0x3800
#define WMREG_OLD_TBDAH 0x0424 /* Transmit Descriptor Base Hi */
#define WMREG_TBDAH 0x3804
#define WMREG_OLD_TDLEN 0x0428 /* Transmit Descriptor Length */
#define WMREG_TDLEN 0x3808
#define WMREG_OLD_TDH 0x0430 /* Transmit Descriptor Head */
#define WMREG_TDH 0x3810
#define WMREG_OLD_TDT 0x0438 /* Transmit Descriptor Tail */
#define WMREG_TDT 0x3818
#define WMREG_OLD_TIDV 0x0440 /* Transmit Delay Interrupt Value */
#define WMREG_TIDV 0x3820
#define WMREG_TXDCTL 0x3828 /* Trandmit Descriptor Control */
#define TXDCTL_PTHRESH(x) ((x) << 0) /* prefetch threshold */
#define TXDCTL_HTHRESH(x) ((x) << 8) /* host threshold */
#define TXDCTL_WTHRESH(x) ((x) << 16) /* write back threshold */
#define WMREG_AIT 0x0458 /* Adaptive IFS Throttle */
#define WMREG_VFTA 0x0600
#define WM_MC_TABSIZE 128
#define WM_VLAN_TABSIZE 128
#define WMREG_PBA 0x1000 /* Packet Buffer Allocation */
#define WMREG_TXDMAC 0x3000 /* Transfer DMA Control */
#define TXDMAC_DPP (1U << 0) /* disable packet prefetch */
#define WMREG_TSPMT 0x3830 /* TCP Segmentation Pad and Minimum
Threshold (Cordova) */
#define TSPMT_TSMT(x) (x) /* TCP seg min transfer */
#define TSPMT_TSPBP(x) ((x) << 16) /* TCP seg pkt buf padding */
#define WMREG_RXCSUM 0x5000 /* Receive Checksum register */
#define RXCSUM_PCSS 0x000000ff /* Packet Checksum Start */
#define RXCSUM_IPOFL (1U << 8) /* IP checksum offload */
#define RXCSUM_TUOFL (1U << 9) /* TCP/UDP checksum offload */