/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) Freescale Semicondutor, Inc. 2006-2009. All rights reserved.
 *
 * Author: Shlomi Gridish <gridish@freescale.com>
 *
 * Description:
 * Internal header file for UCC Gigabit Ethernet unit routines.
 *
 * Changelog:
 * Jun 28, 2006 Li Yang <LeoLi@freescale.com>
 * - Rearrange code and style fixes
 */
#ifndef __UCC_GETH_H__
#define __UCC_GETH_H__

#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/if_ether.h>

#include <soc/fsl/qe/immap_qe.h>
#include <soc/fsl/qe/qe.h>

#include <soc/fsl/qe/ucc.h>
#include <soc/fsl/qe/ucc_fast.h>

#define DRV_DESC "QE UCC Gigabit Ethernet Controller"
#define DRV_NAME "ucc_geth"

#define NUM_TX_QUEUES                   8
#define NUM_RX_QUEUES                   8
#define NUM_BDS_IN_PREFETCHED_BDS       4
#define TX_IP_OFFSET_ENTRY_MAX          8
#define NUM_OF_PADDRS                   4
#define ENET_INIT_PARAM_MAX_ENTRIES_RX  9
#define ENET_INIT_PARAM_MAX_ENTRIES_TX  8

struct ucc_geth {
        struct ucc_fast uccf;
        u8 res0[0x100 - sizeof(struct ucc_fast)];

        u32 maccfg1;            /* mac configuration reg. 1 */
        u32 maccfg2;            /* mac configuration reg. 2 */
        u32 ipgifg;             /* interframe gap reg.  */
        u32 hafdup;             /* half-duplex reg.  */
        u8 res1[0x10];
        u8 miimng[0x18];        /* MII management structure moved to _mii.h */
        u32 ifctl;              /* interface control reg */
        u32 ifstat;             /* interface statux reg */
        u32 macstnaddr1;        /* mac station address part 1 reg */
        u32 macstnaddr2;        /* mac station address part 2 reg */
        u8 res2[0x8];
        u32 uempr;              /* UCC Ethernet Mac parameter reg */
        u32 utbipar;            /* UCC tbi address reg */
        u16 uescr;              /* UCC Ethernet statistics control reg */
        u8 res3[0x180 - 0x15A];
        u32 tx64;               /* Total number of frames (including bad
                                   frames) transmitted that were exactly of the
                                   minimal length (64 for un tagged, 68 for
                                   tagged, or with length exactly equal to the
                                   parameter MINLength */
        u32 tx127;              /* Total number of frames (including bad
                                   frames) transmitted that were between
                                   MINLength (Including FCS length==4) and 127
                                   octets */
        u32 tx255;              /* Total number of frames (including bad
                                   frames) transmitted that were between 128
                                   (Including FCS length==4) and 255 octets */
        u32 rx64;               /* Total number of frames received including
                                   bad frames that were exactly of the mninimal
                                   length (64 bytes) */
        u32 rx127;              /* Total number of frames (including bad
                                   frames) received that were between MINLength
                                   (Including FCS length==4) and 127 octets */
        u32 rx255;              /* Total number of frames (including bad
                                   frames) received that were between 128
                                   (Including FCS length==4) and 255 octets */
        u32 txok;               /* Total number of octets residing in frames
                                   that where involved in successful
                                   transmission */
        u16 txcf;               /* Total number of PAUSE control frames
                                   transmitted by this MAC */
        u8 res4[0x2];
        u32 tmca;               /* Total number of frames that were transmitted
                                   successfully with the group address bit set
                                   that are not broadcast frames */
        u32 tbca;               /* Total number of frames transmitted
                                   successfully that had destination address
                                   field equal to the broadcast address */
        u32 rxfok;              /* Total number of frames received OK */
        u32 rxbok;              /* Total number of octets received OK */
        u32 rbyt;               /* Total number of octets received including
                                   octets in bad frames. Must be implemented in
                                   HW because it includes octets in frames that
                                   never even reach the UCC */
        u32 rmca;               /* Total number of frames that were received
                                   successfully with the group address bit set
                                   that are not broadcast frames */
        u32 rbca;               /* Total number of frames received successfully
                                   that had destination address equal to the
                                   broadcast address */
        u32 scar;               /* Statistics carry register */
        u32 scam;               /* Statistics caryy mask register */
        u8 res5[0x200 - 0x1c4];
} __packed;

/* UCC GETH TEMODR Register */
#define TEMODER_TX_RMON_STATISTICS_ENABLE       0x0100  /* enable Tx statistics
                                                         */
#define TEMODER_SCHEDULER_ENABLE                0x2000  /* enable scheduler */
#define TEMODER_IP_CHECKSUM_GENERATE            0x0400  /* generate IPv4
                                                           checksums */
#define TEMODER_PERFORMANCE_OPTIMIZATION_MODE1  0x0200  /* enable performance
                                                           optimization
                                                           enhancement (mode1) */
#define TEMODER_RMON_STATISTICS                 0x0100  /* enable tx statistics
                                                         */
#define TEMODER_NUM_OF_QUEUES_SHIFT             (15-15) /* Number of queues <<
                                                           shift */

/* UCC GETH TEMODR Register */
#define REMODER_RX_RMON_STATISTICS_ENABLE       0x00001000      /* enable Rx
                                                                   statistics */
#define REMODER_RX_EXTENDED_FEATURES            0x80000000      /* enable
                                                                   extended
                                                                   features */
#define REMODER_VLAN_OPERATION_TAGGED_SHIFT     (31-9 ) /* vlan operation
                                                           tagged << shift */
#define REMODER_VLAN_OPERATION_NON_TAGGED_SHIFT (31-10) /* vlan operation non
                                                           tagged << shift */
#define REMODER_RX_QOS_MODE_SHIFT               (31-15) /* rx QoS mode << shift
                                                         */
#define REMODER_RMON_STATISTICS                 0x00001000      /* enable rx
                                                                   statistics */
#define REMODER_RX_EXTENDED_FILTERING           0x00000800      /* extended
                                                                   filtering
                                                                   vs.
                                                                   mpc82xx-like
                                                                   filtering */
#define REMODER_NUM_OF_QUEUES_SHIFT             (31-23) /* Number of queues <<
                                                           shift */
#define REMODER_DYNAMIC_MAX_FRAME_LENGTH        0x00000008      /* enable
                                                                   dynamic max
                                                                   frame length
                                                                 */
#define REMODER_DYNAMIC_MIN_FRAME_LENGTH        0x00000004      /* enable
                                                                   dynamic min
                                                                   frame length
                                                                 */
#define REMODER_IP_CHECKSUM_CHECK               0x00000002      /* check IPv4
                                                                   checksums */
#define REMODER_IP_ADDRESS_ALIGNMENT            0x00000001      /* align ip
                                                                   address to
                                                                   4-byte
                                                                   boundary */

/* UCC GETH Event Register */
#define UCCE_TXB   (UCC_GETH_UCCE_TXB7 | UCC_GETH_UCCE_TXB6 | \
                    UCC_GETH_UCCE_TXB5 | UCC_GETH_UCCE_TXB4 | \
                    UCC_GETH_UCCE_TXB3 | UCC_GETH_UCCE_TXB2 | \
                    UCC_GETH_UCCE_TXB1 | UCC_GETH_UCCE_TXB0)

#define UCCE_RXB   (UCC_GETH_UCCE_RXB7 | UCC_GETH_UCCE_RXB6 | \
                    UCC_GETH_UCCE_RXB5 | UCC_GETH_UCCE_RXB4 | \
                    UCC_GETH_UCCE_RXB3 | UCC_GETH_UCCE_RXB2 | \
                    UCC_GETH_UCCE_RXB1 | UCC_GETH_UCCE_RXB0)

#define UCCE_RXF   (UCC_GETH_UCCE_RXF7 | UCC_GETH_UCCE_RXF6 | \
                    UCC_GETH_UCCE_RXF5 | UCC_GETH_UCCE_RXF4 | \
                    UCC_GETH_UCCE_RXF3 | UCC_GETH_UCCE_RXF2 | \
                    UCC_GETH_UCCE_RXF1 | UCC_GETH_UCCE_RXF0)

#define UCCE_OTHER (UCC_GETH_UCCE_SCAR | UCC_GETH_UCCE_GRA | \
                    UCC_GETH_UCCE_CBPR | UCC_GETH_UCCE_BSY | \
                    UCC_GETH_UCCE_RXC  | UCC_GETH_UCCE_TXC | UCC_GETH_UCCE_TXE)

#define UCCE_RX_EVENTS  (UCCE_RXF | UCC_GETH_UCCE_BSY)
#define UCCE_TX_EVENTS  (UCCE_TXB | UCC_GETH_UCCE_TXE)

/* TBI defines */
#define ENET_TBI_MII_CR         0x00    /* Control */
#define ENET_TBI_MII_SR         0x01    /* Status */
#define ENET_TBI_MII_ANA        0x04    /* AN advertisement */
#define ENET_TBI_MII_ANLPBPA    0x05    /* AN link partner base page ability */
#define ENET_TBI_MII_ANEX       0x06    /* AN expansion */
#define ENET_TBI_MII_ANNPT      0x07    /* AN next page transmit */
#define ENET_TBI_MII_ANLPANP    0x08    /* AN link partner ability next page */
#define ENET_TBI_MII_EXST       0x0F    /* Extended status */
#define ENET_TBI_MII_JD         0x10    /* Jitter diagnostics */
#define ENET_TBI_MII_TBICON     0x11    /* TBI control */

/* TBI MDIO register bit fields*/
#define TBISR_LSTATUS          0x0004
#define TBICON_CLK_SELECT       0x0020
#define TBIANA_ASYMMETRIC_PAUSE 0x0100
#define TBIANA_SYMMETRIC_PAUSE  0x0080
#define TBIANA_HALF_DUPLEX      0x0040
#define TBIANA_FULL_DUPLEX      0x0020
#define TBICR_PHY_RESET         0x8000
#define TBICR_ANEG_ENABLE       0x1000
#define TBICR_RESTART_ANEG      0x0200
#define TBICR_FULL_DUPLEX       0x0100
#define TBICR_SPEED1_SET        0x0040

#define TBIANA_SETTINGS ( \
                TBIANA_ASYMMETRIC_PAUSE \
                | TBIANA_SYMMETRIC_PAUSE \
                | TBIANA_FULL_DUPLEX \
                )
#define TBICR_SETTINGS ( \
                TBICR_PHY_RESET \
                | TBICR_ANEG_ENABLE \
                | TBICR_FULL_DUPLEX \
                | TBICR_SPEED1_SET \
                )

/* UCC GETH MACCFG1 (MAC Configuration 1 Register) */
#define MACCFG1_FLOW_RX                         0x00000020      /* Flow Control
                                                                   Rx */
#define MACCFG1_FLOW_TX                         0x00000010      /* Flow Control
                                                                   Tx */
#define MACCFG1_ENABLE_SYNCHED_RX               0x00000008      /* Rx Enable
                                                                   synchronized
                                                                   to Rx stream
                                                                 */
#define MACCFG1_ENABLE_RX                       0x00000004      /* Enable Rx */
#define MACCFG1_ENABLE_SYNCHED_TX               0x00000002      /* Tx Enable
                                                                   synchronized
                                                                   to Tx stream
                                                                 */
#define MACCFG1_ENABLE_TX                       0x00000001      /* Enable Tx */

/* UCC GETH MACCFG2 (MAC Configuration 2 Register) */
#define MACCFG2_PREL_SHIFT                      (31 - 19)       /* Preamble
                                                                   Length <<
                                                                   shift */
#define MACCFG2_PREL_MASK                       0x0000f000      /* Preamble
                                                                   Length mask */
#define MACCFG2_SRP                             0x00000080      /* Soft Receive
                                                                   Preamble */
#define MACCFG2_STP                             0x00000040      /* Soft
                                                                   Transmit
                                                                   Preamble */
#define MACCFG2_RESERVED_1                      0x00000020      /* Reserved -
                                                                   must be set
                                                                   to 1 */
#define MACCFG2_LC                              0x00000010      /* Length Check
                                                                 */
#define MACCFG2_MPE                             0x00000008      /* Magic packet
                                                                   detect */
#define MACCFG2_FDX                             0x00000001      /* Full Duplex */
#define MACCFG2_FDX_MASK                        0x00000001      /* Full Duplex
                                                                   mask */
#define MACCFG2_PAD_CRC                         0x00000004
#define MACCFG2_CRC_EN                          0x00000002
#define MACCFG2_PAD_AND_CRC_MODE_NONE           0x00000000      /* Neither
                                                                   Padding
                                                                   short frames
                                                                   nor CRC */
#define MACCFG2_PAD_AND_CRC_MODE_CRC_ONLY       0x00000002      /* Append CRC
                                                                   only */
#define MACCFG2_PAD_AND_CRC_MODE_PAD_AND_CRC    0x00000004
#define MACCFG2_INTERFACE_MODE_NIBBLE           0x00000100      /* nibble mode
                                                                   (MII/RMII/RGMII
                                                                   10/100bps) */
#define MACCFG2_INTERFACE_MODE_BYTE             0x00000200      /* byte mode
                                                                   (GMII/TBI/RTB/RGMII
                                                                   1000bps ) */
#define MACCFG2_INTERFACE_MODE_MASK             0x00000300      /* mask
                                                                   covering all
                                                                   relevant
                                                                   bits */

/* UCC GETH IPGIFG (Inter-frame Gap / Inter-Frame Gap Register) */
#define IPGIFG_NON_BACK_TO_BACK_IFG_PART1_SHIFT (31 -  7)       /* Non
                                                                   back-to-back
                                                                   inter frame
                                                                   gap part 1.
                                                                   << shift */
#define IPGIFG_NON_BACK_TO_BACK_IFG_PART2_SHIFT (31 - 15)       /* Non
                                                                   back-to-back
                                                                   inter frame
                                                                   gap part 2.
                                                                   << shift */
#define IPGIFG_MINIMUM_IFG_ENFORCEMENT_SHIFT    (31 - 23)       /* Mimimum IFG
                                                                   Enforcement
                                                                   << shift */
#define IPGIFG_BACK_TO_BACK_IFG_SHIFT           (31 - 31)       /* back-to-back
                                                                   inter frame
                                                                   gap << shift
                                                                 */
#define IPGIFG_NON_BACK_TO_BACK_IFG_PART1_MAX   127     /* Non back-to-back
                                                           inter frame gap part
                                                           1. max val */
#define IPGIFG_NON_BACK_TO_BACK_IFG_PART2_MAX   127     /* Non back-to-back
                                                           inter frame gap part
                                                           2. max val */
#define IPGIFG_MINIMUM_IFG_ENFORCEMENT_MAX      255     /* Mimimum IFG
                                                           Enforcement max val */
#define IPGIFG_BACK_TO_BACK_IFG_MAX             127     /* back-to-back inter
                                                           frame gap max val */
#define IPGIFG_NBTB_CS_IPG_MASK                 0x7F000000
#define IPGIFG_NBTB_IPG_MASK                    0x007F0000
#define IPGIFG_MIN_IFG_MASK                     0x0000FF00
#define IPGIFG_BTB_IPG_MASK                     0x0000007F

/* UCC GETH HAFDUP (Half Duplex Register) */
#define HALFDUP_ALT_BEB_TRUNCATION_SHIFT        (31 - 11)       /* Alternate
                                                                   Binary
                                                                   Exponential
                                                                   Backoff
                                                                   Truncation
                                                                   << shift */
#define HALFDUP_ALT_BEB_TRUNCATION_MAX          0xf     /* Alternate Binary
                                                           Exponential Backoff
                                                           Truncation max val */
#define HALFDUP_ALT_BEB                         0x00080000      /* Alternate
                                                                   Binary
                                                                   Exponential
                                                                   Backoff */
#define HALFDUP_BACK_PRESSURE_NO_BACKOFF        0x00040000      /* Back
                                                                   pressure no
                                                                   backoff */
#define HALFDUP_NO_BACKOFF                      0x00020000      /* No Backoff */
#define HALFDUP_EXCESSIVE_DEFER                 0x00010000      /* Excessive
                                                                   Defer */
#define HALFDUP_MAX_RETRANSMISSION_SHIFT        (31 - 19)       /* Maximum
                                                                   Retransmission
                                                                   << shift */
#define HALFDUP_MAX_RETRANSMISSION_MAX          0xf     /* Maximum
                                                           Retransmission max
                                                           val */
#define HALFDUP_COLLISION_WINDOW_SHIFT          (31 - 31)       /* Collision
                                                                   Window <<
                                                                   shift */
#define HALFDUP_COLLISION_WINDOW_MAX            0x3f    /* Collision Window max
                                                           val */
#define HALFDUP_ALT_BEB_TR_MASK                 0x00F00000
#define HALFDUP_RETRANS_MASK                    0x0000F000
#define HALFDUP_COL_WINDOW_MASK                 0x0000003F

/* UCC GETH UCCS (Ethernet Status Register) */
#define UCCS_BPR                                0x02    /* Back pressure (in
                                                           half duplex mode) */
#define UCCS_PAU                                0x02    /* Pause state (in full
                                                           duplex mode) */
#define UCCS_MPD                                0x01    /* Magic Packet
                                                           Detected */

/* UCC GETH IFSTAT (Interface Status Register) */
#define IFSTAT_EXCESS_DEFER                     0x00000200      /* Excessive
                                                                   transmission
                                                                   defer */

/* UCC GETH MACSTNADDR1 (Station Address Part 1 Register) */
#define MACSTNADDR1_OCTET_6_SHIFT               (31 -  7)       /* Station
                                                                   address 6th
                                                                   octet <<
                                                                   shift */
#define MACSTNADDR1_OCTET_5_SHIFT               (31 - 15)       /* Station
                                                                   address 5th
                                                                   octet <<
                                                                   shift */
#define MACSTNADDR1_OCTET_4_SHIFT               (31 - 23)       /* Station
                                                                   address 4th
                                                                   octet <<
                                                                   shift */
#define MACSTNADDR1_OCTET_3_SHIFT               (31 - 31)       /* Station
                                                                   address 3rd
                                                                   octet <<
                                                                   shift */

/* UCC GETH MACSTNADDR2 (Station Address Part 2 Register) */
#define MACSTNADDR2_OCTET_2_SHIFT               (31 -  7)       /* Station
                                                                   address 2nd
                                                                   octet <<
                                                                   shift */
#define MACSTNADDR2_OCTET_1_SHIFT               (31 - 15)       /* Station
                                                                   address 1st
                                                                   octet <<
                                                                   shift */

/* UCC GETH UEMPR (Ethernet Mac Parameter Register) */
#define UEMPR_PAUSE_TIME_VALUE_SHIFT            (31 - 15)       /* Pause time
                                                                   value <<
                                                                   shift */
#define UEMPR_EXTENDED_PAUSE_TIME_VALUE_SHIFT   (31 - 31)       /* Extended
                                                                   pause time
                                                                   value <<
                                                                   shift */

/* UCC GETH UTBIPAR (Ten Bit Interface Physical Address Register) */
#define UTBIPAR_PHY_ADDRESS_SHIFT               (31 - 31)       /* Phy address
                                                                   << shift */
#define UTBIPAR_PHY_ADDRESS_MASK                0x0000001f      /* Phy address
                                                                   mask */

/* UCC GETH UESCR (Ethernet Statistics Control Register) */
#define UESCR_AUTOZ                             0x8000  /* Automatically zero
                                                           addressed
                                                           statistical counter
                                                           values */
#define UESCR_CLRCNT                            0x4000  /* Clear all statistics
                                                           counters */
#define UESCR_MAXCOV_SHIFT                      (15 -  7)       /* Max
                                                                   Coalescing
                                                                   Value <<
                                                                   shift */
#define UESCR_SCOV_SHIFT                        (15 - 15)       /* Status
                                                                   Coalescing
                                                                   Value <<
                                                                   shift */

/* UCC GETH UDSR (Data Synchronization Register) */
#define UDSR_MAGIC                              0x067E

struct ucc_geth_thread_data_tx {
        u8 res0[104];
} __packed;

struct ucc_geth_thread_data_rx {
        u8 res0[40];
} __packed;

/* Send Queue Queue-Descriptor */
struct ucc_geth_send_queue_qd {
        u32 bd_ring_base;       /* pointer to BD ring base address */
        u8 res0[0x8];
        u32 last_bd_completed_address;/* initialize to last entry in BD ring */
        u8 res1[0x30];
} __packed;

struct ucc_geth_send_queue_mem_region {
        struct ucc_geth_send_queue_qd sqqd[NUM_TX_QUEUES];
} __packed;

struct ucc_geth_thread_tx_pram {
        u8 res0[64];
} __packed;

struct ucc_geth_thread_rx_pram {
        u8 res0[128];
} __packed;

#define THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING        64
#define THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_8      64
#define THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_16     96

struct ucc_geth_scheduler {
        u16 cpucount0;          /* CPU packet counter */
        u16 cpucount1;          /* CPU packet counter */
        u16 cecount0;           /* QE packet counter */
        u16 cecount1;           /* QE packet counter */
        u16 cpucount2;          /* CPU packet counter */
        u16 cpucount3;          /* CPU packet counter */
        u16 cecount2;           /* QE packet counter */
        u16 cecount3;           /* QE packet counter */
        u16 cpucount4;          /* CPU packet counter */
        u16 cpucount5;          /* CPU packet counter */
        u16 cecount4;           /* QE packet counter */
        u16 cecount5;           /* QE packet counter */
        u16 cpucount6;          /* CPU packet counter */
        u16 cpucount7;          /* CPU packet counter */
        u16 cecount6;           /* QE packet counter */
        u16 cecount7;           /* QE packet counter */
        u32 weightstatus[NUM_TX_QUEUES];        /* accumulated weight factor */
        u32 rtsrshadow;         /* temporary variable handled by QE */
        u32 time;               /* temporary variable handled by QE */
        u32 ttl;                /* temporary variable handled by QE */
        u32 mblinterval;        /* max burst length interval */
        u16 nortsrbytetime;     /* normalized value of byte time in tsr units */
        u8 fracsiz;             /* radix 2 log value of denom. of
                                   NorTSRByteTime */
        u8 res0[1];
        u8 strictpriorityq;     /* Strict Priority Mask register */
        u8 txasap;              /* Transmit ASAP register */
        u8 extrabw;             /* Extra BandWidth register */
        u8 oldwfqmask;          /* temporary variable handled by QE */
        u8 weightfactor[NUM_TX_QUEUES];
                                      /**< weight factor for queues   */
        u32 minw;               /* temporary variable handled by QE */
        u8 res1[0x70 - 0x64];
} __packed;

struct ucc_geth_tx_firmware_statistics_pram {
        u32 sicoltx;            /* single collision */
        u32 mulcoltx;           /* multiple collision */
        u32 latecoltxfr;        /* late collision */
        u32 frabortduecol;      /* frames aborted due to transmit collision */
        u32 frlostinmactxer;    /* frames lost due to internal MAC error
                                   transmission that are not counted on any
                                   other counter */
        u32 carriersenseertx;   /* carrier sense error */
        u32 frtxok;             /* frames transmitted OK */
        u32 txfrexcessivedefer; /* frames with defferal time greater than
                                   specified threshold */
        u32 txpkts256;          /* total packets (including bad) between 256
                                   and 511 octets */
        u32 txpkts512;          /* total packets (including bad) between 512
                                   and 1023 octets */
        u32 txpkts1024;         /* total packets (including bad) between 1024
                                   and 1518 octets */
        u32 txpktsjumbo;        /* total packets (including bad) between 1024
                                   and MAXLength octets */
} __packed;

struct ucc_geth_rx_firmware_statistics_pram {
        u32 frrxfcser;          /* frames with crc error */
        u32 fraligner;          /* frames with alignment error */
        u32 inrangelenrxer;     /* in range length error */
        u32 outrangelenrxer;    /* out of range length error */
        u32 frtoolong;          /* frame too long */
        u32 runt;               /* runt */
        u32 verylongevent;      /* very long event */
        u32 symbolerror;        /* symbol error */
        u32 dropbsy;            /* drop because of BD not ready */
        u8 res0[0x8];
        u32 mismatchdrop;       /* drop because of MAC filtering (e.g. address
                                   or type mismatch) */
        u32 underpkts;          /* total frames less than 64 octets */
        u32 pkts256;            /* total frames (including bad) between 256 and
                                   511 octets */
        u32 pkts512;            /* total frames (including bad) between 512 and
                                   1023 octets */
        u32 pkts1024;           /* total frames (including bad) between 1024
                                   and 1518 octets */
        u32 pktsjumbo;          /* total frames (including bad) between 1024
                                   and MAXLength octets */
        u32 frlossinmacer;      /* frames lost because of internal MAC error
                                   that is not counted in any other counter */
        u32 pausefr;            /* pause frames */
        u8 res1[0x4];
        u32 removevlan;         /* total frames that had their VLAN tag removed
                                 */
        u32 replacevlan;        /* total frames that had their VLAN tag
                                   replaced */
        u32 insertvlan;         /* total frames that had their VLAN tag
                                   inserted */
} __packed;

struct ucc_geth_rx_interrupt_coalescing_entry {
        u32 interruptcoalescingmaxvalue;        /* interrupt coalescing max
                                                   value */
        u32 interruptcoalescingcounter; /* interrupt coalescing counter,
                                           initialize to
                                           interruptcoalescingmaxvalue */
} __packed;

struct ucc_geth_rx_interrupt_coalescing_table {
        struct ucc_geth_rx_interrupt_coalescing_entry coalescingentry[NUM_RX_QUEUES];
                                       /**< interrupt coalescing entry */
} __packed;

struct ucc_geth_rx_prefetched_bds {
        struct qe_bd bd[NUM_BDS_IN_PREFETCHED_BDS];     /* prefetched bd */
} __packed;

struct ucc_geth_rx_bd_queues_entry {
        u32 bdbaseptr;          /* BD base pointer */
        u32 bdptr;              /* BD pointer */
        u32 externalbdbaseptr;  /* external BD base pointer */
        u32 externalbdptr;      /* external BD pointer */
} __packed;

struct ucc_geth_tx_global_pram {
        u16 temoder;
        u8 res0[0x38 - 0x02];
        u32 sqptr;              /* a base pointer to send queue memory region */
        u32 schedulerbasepointer;       /* a base pointer to scheduler memory
                                           region */
        u32 txrmonbaseptr;      /* base pointer to Tx RMON statistics counter */
        u32 tstate;             /* tx internal state. High byte contains
                                   function code */
        u8 iphoffset[TX_IP_OFFSET_ENTRY_MAX];
        u32 vtagtable[0x8];     /* 8 4-byte VLAN tags */
        u32 tqptr;              /* a base pointer to the Tx Queues Memory
                                   Region */
        u8 res2[0x78 - 0x74];
        u64 snums_en;
        u32 l2l3baseptr;        /* top byte consists of a few other bit fields */

        u16 mtu[8];
        u8 res3[0xa8 - 0x94];
        u32 wrrtablebase;       /* top byte is reserved */
        u8 res4[0xc0 - 0xac];
} __packed;

/* structure representing Extended Filtering Global Parameters in PRAM */
struct ucc_geth_exf_global_pram {
        u32 l2pcdptr;           /* individual address filter, high */
        u8 res0[0x10 - 0x04];
} __packed;

struct ucc_geth_rx_global_pram {
        u32 remoder;            /* ethernet mode reg. */
        u32 rqptr;              /* base pointer to the Rx Queues Memory Region*/
        u32 res0[0x1];
        u8 res1[0x20 - 0xC];
        u16 typeorlen;          /* cutoff point less than which, type/len field
                                   is considered length */
        u8 res2[0x1];
        u8 rxgstpack;           /* acknowledgement on GRACEFUL STOP RX command*/
        u32 rxrmonbaseptr;      /* base pointer to Rx RMON statistics counter */
        u8 res3[0x30 - 0x28];
        u32 intcoalescingptr;   /* Interrupt coalescing table pointer */
        u8 res4[0x36 - 0x34];
        u8 rstate;              /* rx internal state. High byte contains
                                   function code */
        u8 res5[0x46 - 0x37];
        u16 mrblr;              /* max receive buffer length reg. */
        u32 rbdqptr;            /* base pointer to RxBD parameter table
                                   description */
        u16 mflr;               /* max frame length reg. */
        u16 minflr;             /* min frame length reg. */
        u16 maxd1;              /* max dma1 length reg. */
        u16 maxd2;              /* max dma2 length reg. */
        u32 ecamptr;            /* external CAM address */
        u32 l2qt;               /* VLAN priority mapping table. */
        u32 l3qt[0x8];          /* IP priority mapping table. */
        u16 vlantype;           /* vlan type */
        u16 vlantci;            /* default vlan tci */
        u8 addressfiltering[64];        /* address filtering data structure */
        u32 exfGlobalParam;     /* base address for extended filtering global
                                   parameters */
        u8 res6[0x100 - 0xC4];  /* Initialize to zero */
} __packed;

#define GRACEFUL_STOP_ACKNOWLEDGE_RX            0x01

/* structure representing InitEnet command */
struct ucc_geth_init_pram {
        u8 resinit1;
        u8 resinit2;
        u8 resinit3;
        u8 resinit4;
        u16 resinit5;
        u8 res1[0x1];
        u8 largestexternallookupkeysize;
        u32 rgftgfrxglobal;
        u32 rxthread[ENET_INIT_PARAM_MAX_ENTRIES_RX];   /* rx threads */
        u8 res2[0x38 - 0x30];
        u32 txglobal;           /* tx global */
        u32 txthread[ENET_INIT_PARAM_MAX_ENTRIES_TX];   /* tx threads */
        u8 res3[0x1];
} __packed;

#define ENET_INIT_PARAM_RGF_SHIFT               (32 - 4)
#define ENET_INIT_PARAM_TGF_SHIFT               (32 - 8)

#define ENET_INIT_PARAM_RISC_MASK               0x0000003f
#define ENET_INIT_PARAM_PTR_MASK                0x00ffffc0
#define ENET_INIT_PARAM_SNUM_MASK               0xff000000
#define ENET_INIT_PARAM_SNUM_SHIFT              24

#define ENET_INIT_PARAM_MAGIC_RES_INIT1         0x06
#define ENET_INIT_PARAM_MAGIC_RES_INIT2         0x30
#define ENET_INIT_PARAM_MAGIC_RES_INIT3         0xff
#define ENET_INIT_PARAM_MAGIC_RES_INIT4         0x00
#define ENET_INIT_PARAM_MAGIC_RES_INIT5         0x0400

/* structure representing 82xx Address Filtering Enet Address in PRAM */
struct ucc_geth_82xx_enet_address {
        u8 res1[0x2];
        u16 h;                  /* address (MSB) */
        u16 m;                  /* address */
        u16 l;                  /* address (LSB) */
} __packed;

/* structure representing 82xx Address Filtering PRAM */
struct ucc_geth_82xx_address_filtering_pram {
        u32 iaddr_h;            /* individual address filter, high */
        u32 iaddr_l;            /* individual address filter, low */
        u32 gaddr_h;            /* group address filter, high */
        u32 gaddr_l;            /* group address filter, low */
        struct ucc_geth_82xx_enet_address __iomem taddr;
        struct ucc_geth_82xx_enet_address __iomem paddr[NUM_OF_PADDRS];
        u8 res0[0x40 - 0x38];
} __packed;

/* GETH Tx firmware statistics structure, used when calling
   UCC_GETH_GetStatistics. */
struct ucc_geth_tx_firmware_statistics {
        u32 sicoltx;            /* single collision */
        u32 mulcoltx;           /* multiple collision */
        u32 latecoltxfr;        /* late collision */
        u32 frabortduecol;      /* frames aborted due to transmit collision */
        u32 frlostinmactxer;    /* frames lost due to internal MAC error
                                   transmission that are not counted on any
                                   other counter */
        u32 carriersenseertx;   /* carrier sense error */
        u32 frtxok;             /* frames transmitted OK */
        u32 txfrexcessivedefer; /* frames with defferal time greater than
                                   specified threshold */
        u32 txpkts256;          /* total packets (including bad) between 256
                                   and 511 octets */
        u32 txpkts512;          /* total packets (including bad) between 512
                                   and 1023 octets */
        u32 txpkts1024;         /* total packets (including bad) between 1024
                                   and 1518 octets */
        u32 txpktsjumbo;        /* total packets (including bad) between 1024
                                   and MAXLength octets */
} __packed;

/* GETH Rx firmware statistics structure, used when calling
   UCC_GETH_GetStatistics. */
struct ucc_geth_rx_firmware_statistics {
        u32 frrxfcser;          /* frames with crc error */
        u32 fraligner;          /* frames with alignment error */
        u32 inrangelenrxer;     /* in range length error */
        u32 outrangelenrxer;    /* out of range length error */
        u32 frtoolong;          /* frame too long */
        u32 runt;               /* runt */
        u32 verylongevent;      /* very long event */
        u32 symbolerror;        /* symbol error */
        u32 dropbsy;            /* drop because of BD not ready */
        u8 res0[0x8];
        u32 mismatchdrop;       /* drop because of MAC filtering (e.g. address
                                   or type mismatch) */
        u32 underpkts;          /* total frames less than 64 octets */
        u32 pkts256;            /* total frames (including bad) between 256 and
                                   511 octets */
        u32 pkts512;            /* total frames (including bad) between 512 and
                                   1023 octets */
        u32 pkts1024;           /* total frames (including bad) between 1024
                                   and 1518 octets */
        u32 pktsjumbo;          /* total frames (including bad) between 1024
                                   and MAXLength octets */
        u32 frlossinmacer;      /* frames lost because of internal MAC error
                                   that is not counted in any other counter */
        u32 pausefr;            /* pause frames */
        u8 res1[0x4];
        u32 removevlan;         /* total frames that had their VLAN tag removed
                                 */
        u32 replacevlan;        /* total frames that had their VLAN tag
                                   replaced */
        u32 insertvlan;         /* total frames that had their VLAN tag
                                   inserted */
} __packed;

/* GETH hardware statistics structure, used when calling
   UCC_GETH_GetStatistics. */
struct ucc_geth_hardware_statistics {
        u32 tx64;               /* Total number of frames (including bad
                                   frames) transmitted that were exactly of the
                                   minimal length (64 for un tagged, 68 for
                                   tagged, or with length exactly equal to the
                                   parameter MINLength */
        u32 tx127;              /* Total number of frames (including bad
                                   frames) transmitted that were between
                                   MINLength (Including FCS length==4) and 127
                                   octets */
        u32 tx255;              /* Total number of frames (including bad
                                   frames) transmitted that were between 128
                                   (Including FCS length==4) and 255 octets */
        u32 rx64;               /* Total number of frames received including
                                   bad frames that were exactly of the mninimal
                                   length (64 bytes) */
        u32 rx127;              /* Total number of frames (including bad
                                   frames) received that were between MINLength
                                   (Including FCS length==4) and 127 octets */
        u32 rx255;              /* Total number of frames (including bad
                                   frames) received that were between 128
                                   (Including FCS length==4) and 255 octets */
        u32 txok;               /* Total number of octets residing in frames
                                   that where involved in successful
                                   transmission */
        u16 txcf;               /* Total number of PAUSE control frames
                                   transmitted by this MAC */
        u32 tmca;               /* Total number of frames that were transmitted
                                   successfully with the group address bit set
                                   that are not broadcast frames */
        u32 tbca;               /* Total number of frames transmitted
                                   successfully that had destination address
                                   field equal to the broadcast address */
        u32 rxfok;              /* Total number of frames received OK */
        u32 rxbok;              /* Total number of octets received OK */
        u32 rbyt;               /* Total number of octets received including
                                   octets in bad frames. Must be implemented in
                                   HW because it includes octets in frames that
                                   never even reach the UCC */
        u32 rmca;               /* Total number of frames that were received
                                   successfully with the group address bit set
                                   that are not broadcast frames */
        u32 rbca;               /* Total number of frames received successfully
                                   that had destination address equal to the
                                   broadcast address */
} __packed;

/* UCC GETH Tx errors returned via TxConf callback */
#define TX_ERRORS_DEF      0x0200
#define TX_ERRORS_EXDEF    0x0100
#define TX_ERRORS_LC       0x0080
#define TX_ERRORS_RL       0x0040
#define TX_ERRORS_RC_MASK  0x003C
#define TX_ERRORS_RC_SHIFT 2
#define TX_ERRORS_UN       0x0002
#define TX_ERRORS_CSL      0x0001

/* UCC GETH Rx errors returned via RxStore callback */
#define RX_ERRORS_CMR      0x0200
#define RX_ERRORS_M        0x0100
#define RX_ERRORS_BC       0x0080
#define RX_ERRORS_MC       0x0040

/* Transmit BD. These are in addition to values defined in uccf. */
#define T_VID      0x003c0000   /* insert VLAN id index mask. */
#define T_DEF      (((u32) TX_ERRORS_DEF     ) << 16)
#define T_EXDEF    (((u32) TX_ERRORS_EXDEF   ) << 16)
#define T_LC       (((u32) TX_ERRORS_LC      ) << 16)
#define T_RL       (((u32) TX_ERRORS_RL      ) << 16)
#define T_RC_MASK  (((u32) TX_ERRORS_RC_MASK ) << 16)
#define T_UN       (((u32) TX_ERRORS_UN      ) << 16)
#define T_CSL      (((u32) TX_ERRORS_CSL     ) << 16)
#define T_ERRORS_REPORT  (T_DEF | T_EXDEF | T_LC | T_RL | T_RC_MASK \
                | T_UN | T_CSL) /* transmit errors to report */

/* Receive BD. These are in addition to values defined in uccf. */
#define R_LG    0x00200000      /* Frame length violation.  */
#define R_NO    0x00100000      /* Non-octet aligned frame.  */
#define R_SH    0x00080000      /* Short frame.  */
#define R_CR    0x00040000      /* CRC error.  */
#define R_OV    0x00020000      /* Overrun.  */
#define R_IPCH  0x00010000      /* IP checksum check failed. */
#define R_CMR   (((u32) RX_ERRORS_CMR  ) << 16)
#define R_M     (((u32) RX_ERRORS_M    ) << 16)
#define R_BC    (((u32) RX_ERRORS_BC   ) << 16)
#define R_MC    (((u32) RX_ERRORS_MC   ) << 16)
#define R_ERRORS_REPORT (R_CMR | R_M | R_BC | R_MC)     /* receive errors to
                                                           report */
#define R_ERRORS_FATAL  (R_LG  | R_NO | R_SH | R_CR | \
                R_OV | R_IPCH)  /* receive errors to discard */

/* Alignments */
#define UCC_GETH_RX_GLOBAL_PRAM_ALIGNMENT       256
#define UCC_GETH_TX_GLOBAL_PRAM_ALIGNMENT       128
#define UCC_GETH_THREAD_RX_PRAM_ALIGNMENT       128
#define UCC_GETH_THREAD_TX_PRAM_ALIGNMENT       64
#define UCC_GETH_THREAD_DATA_ALIGNMENT          256     /* spec gives values
                                                           based on num of
                                                           threads, but always
                                                           using the maximum is
                                                           easier */
#define UCC_GETH_SEND_QUEUE_QUEUE_DESCRIPTOR_ALIGNMENT  32
#define UCC_GETH_SCHEDULER_ALIGNMENT            8       /* This is a guess */
#define UCC_GETH_TX_STATISTICS_ALIGNMENT        4       /* This is a guess */
#define UCC_GETH_RX_STATISTICS_ALIGNMENT        4       /* This is a guess */
#define UCC_GETH_RX_INTERRUPT_COALESCING_ALIGNMENT      64
#define UCC_GETH_RX_BD_QUEUES_ALIGNMENT         8       /* This is a guess */
#define UCC_GETH_RX_PREFETCHED_BDS_ALIGNMENT    128     /* This is a guess */
#define UCC_GETH_RX_EXTENDED_FILTERING_GLOBAL_PARAMETERS_ALIGNMENT 8    /* This
                                                                           is a
                                                                           guess
                                                                         */
#define UCC_GETH_RX_BD_RING_ALIGNMENT           32
#define UCC_GETH_TX_BD_RING_ALIGNMENT           32
#define UCC_GETH_MRBLR_ALIGNMENT                128
#define UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT      4
#define UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT       32
#define UCC_GETH_RX_DATA_BUF_ALIGNMENT          64

#define UCC_GETH_TAD_EF                         0x80
#define UCC_GETH_TAD_V                          0x40
#define UCC_GETH_TAD_REJ                        0x20
#define UCC_GETH_TAD_VTAG_OP_RIGHT_SHIFT        2
#define UCC_GETH_TAD_VTAG_OP_SHIFT              6
#define UCC_GETH_TAD_V_NON_VTAG_OP              0x20
#define UCC_GETH_TAD_RQOS_SHIFT                 0
#define UCC_GETH_TAD_V_PRIORITY_SHIFT           5
#define UCC_GETH_TAD_CFI                        0x10

#define UCC_GETH_VLAN_PRIORITY_MAX              8
#define UCC_GETH_IP_PRIORITY_MAX                64
#define UCC_GETH_TX_VTAG_TABLE_ENTRY_MAX        8
#define UCC_GETH_RX_BD_RING_SIZE_MIN            8
#define UCC_GETH_TX_BD_RING_SIZE_MIN            2
#define UCC_GETH_BD_RING_SIZE_MAX               0xffff

#define UCC_GETH_SIZE_OF_BD                     QE_SIZEOF_BD

/* Driver definitions */
#define TX_BD_RING_LEN                          0x10
#define RX_BD_RING_LEN                          0x20

#define TX_RING_MOD_MASK(size)                  (size-1)
#define RX_RING_MOD_MASK(size)                  (size-1)

#define ENET_GROUP_ADDR                         0x01    /* Group address mask
                                                           for ethernet
                                                           addresses */

#define TX_TIMEOUT                              (1*HZ)
#define PHY_INIT_TIMEOUT                        100000
#define PHY_CHANGE_TIME                         2

/* Fast Ethernet (10/100 Mbps) */
#define UCC_GETH_URFS_INIT                      512     /* Rx virtual FIFO size
                                                         */
#define UCC_GETH_URFET_INIT                     256     /* 1/2 urfs */
#define UCC_GETH_URFSET_INIT                    384     /* 3/4 urfs */
#define UCC_GETH_UTFS_INIT                      512     /* Tx virtual FIFO size
                                                         */
#define UCC_GETH_UTFET_INIT                     256     /* 1/2 utfs */
#define UCC_GETH_UTFTT_INIT                     256     /* 1/2 utfs
                                                           due to errata */
/* Gigabit Ethernet (1000 Mbps) */
#define UCC_GETH_URFS_GIGA_INIT                 4096/*2048*/    /* Rx virtual
                                                                   FIFO size */
#define UCC_GETH_URFET_GIGA_INIT                2048/*1024*/    /* 1/2 urfs */
#define UCC_GETH_URFSET_GIGA_INIT               3072/*1536*/    /* 3/4 urfs */
#define UCC_GETH_UTFS_GIGA_INIT                 4096/*2048*/    /* Tx virtual
                                                                   FIFO size */
#define UCC_GETH_UTFET_GIGA_INIT                2048/*1024*/    /* 1/2 utfs */
#define UCC_GETH_UTFTT_GIGA_INIT                4096/*0x40*/    /* Tx virtual
                                                                   FIFO size */

#define UCC_GETH_REMODER_INIT                   0       /* bits that must be
                                                           set */
#define UCC_GETH_TEMODER_INIT                   0xC000  /* bits that must */

/* Initial value for UPSMR */
#define UCC_GETH_UPSMR_INIT                     UCC_GETH_UPSMR_RES1

#define UCC_GETH_MACCFG1_INIT                   0
#define UCC_GETH_MACCFG2_INIT                   (MACCFG2_RESERVED_1)

/* Ethernet Address Type. */
enum enet_addr_type {
        ENET_ADDR_TYPE_INDIVIDUAL,
        ENET_ADDR_TYPE_GROUP,
        ENET_ADDR_TYPE_BROADCAST
};

/* UCC GETH 82xx Ethernet Address Recognition Location */
enum ucc_geth_enet_address_recognition_location {
        UCC_GETH_ENET_ADDRESS_RECOGNITION_LOCATION_STATION_ADDRESS,/* station
                                                                      address */
        UCC_GETH_ENET_ADDRESS_RECOGNITION_LOCATION_PADDR_FIRST, /* additional
                                                                   station
                                                                   address
                                                                   paddr1 */
        UCC_GETH_ENET_ADDRESS_RECOGNITION_LOCATION_PADDR2,      /* additional
                                                                   station
                                                                   address
                                                                   paddr2 */
        UCC_GETH_ENET_ADDRESS_RECOGNITION_LOCATION_PADDR3,      /* additional
                                                                   station
                                                                   address
                                                                   paddr3 */
        UCC_GETH_ENET_ADDRESS_RECOGNITION_LOCATION_PADDR_LAST,  /* additional
                                                                   station
                                                                   address
                                                                   paddr4 */
        UCC_GETH_ENET_ADDRESS_RECOGNITION_LOCATION_GROUP_HASH,  /* group hash */
        UCC_GETH_ENET_ADDRESS_RECOGNITION_LOCATION_INDIVIDUAL_HASH /* individual
                                                                      hash */
};

/* UCC GETH vlan operation tagged */
enum ucc_geth_vlan_operation_tagged {
        UCC_GETH_VLAN_OPERATION_TAGGED_NOP = 0x0,       /* Tagged - nop */
        UCC_GETH_VLAN_OPERATION_TAGGED_REPLACE_VID_PORTION_OF_Q_TAG
                = 0x1,  /* Tagged - replace vid portion of q tag */
        UCC_GETH_VLAN_OPERATION_TAGGED_IF_VID0_REPLACE_VID_WITH_DEFAULT_VALUE
                = 0x2,  /* Tagged - if vid0 replace vid with default value  */
        UCC_GETH_VLAN_OPERATION_TAGGED_EXTRACT_Q_TAG_FROM_FRAME
                = 0x3   /* Tagged - extract q tag from frame */
};

/* UCC GETH vlan operation non-tagged */
enum ucc_geth_vlan_operation_non_tagged {
        UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP = 0x0,   /* Non tagged - nop */
        UCC_GETH_VLAN_OPERATION_NON_TAGGED_Q_TAG_INSERT = 0x1   /* Non tagged -
                                                                   q tag insert
                                                                 */
};

/* UCC GETH Rx Quality of Service Mode */
enum ucc_geth_qos_mode {
        UCC_GETH_QOS_MODE_DEFAULT = 0x0,        /* default queue */
        UCC_GETH_QOS_MODE_QUEUE_NUM_FROM_L2_CRITERIA = 0x1,     /* queue
                                                                   determined
                                                                   by L2
                                                                   criteria */
        UCC_GETH_QOS_MODE_QUEUE_NUM_FROM_L3_CRITERIA = 0x2      /* queue
                                                                   determined
                                                                   by L3
                                                                   criteria */
};

/* UCC GETH Statistics Gathering Mode - These are bit flags, 'or' them together
   for combined functionality */
enum ucc_geth_statistics_gathering_mode {
        UCC_GETH_STATISTICS_GATHERING_MODE_NONE = 0x00000000,   /* No
                                                                   statistics
                                                                   gathering */
        UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE = 0x00000001,/* Enable
                                                                    hardware
                                                                    statistics
                                                                    gathering
                                                                  */

        UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX = 0x00000004,/*Enable
                                                                      firmware
                                                                      tx
                                                                      statistics
                                                                      gathering
                                                                     */
        UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX = 0x00000008/* Enable
                                                                      firmware
                                                                      rx
                                                                      statistics
                                                                      gathering
                                                                    */
};

/* UCC GETH Pad and CRC Mode - Note, Padding without CRC is not possible */
enum ucc_geth_maccfg2_pad_and_crc_mode {
        UCC_GETH_PAD_AND_CRC_MODE_NONE
                = MACCFG2_PAD_AND_CRC_MODE_NONE,        /* Neither Padding
                                                           short frames
                                                           nor CRC */
        UCC_GETH_PAD_AND_CRC_MODE_CRC_ONLY
                = MACCFG2_PAD_AND_CRC_MODE_CRC_ONLY,    /* Append
                                                           CRC only */
        UCC_GETH_PAD_AND_CRC_MODE_PAD_AND_CRC =
            MACCFG2_PAD_AND_CRC_MODE_PAD_AND_CRC
};

/* UCC GETH upsmr Flow Control Mode */
enum ucc_geth_flow_control_mode {
        UPSMR_AUTOMATIC_FLOW_CONTROL_MODE_NONE = 0x00000000,    /* No automatic
                                                                   flow control
                                                                 */
        UPSMR_AUTOMATIC_FLOW_CONTROL_MODE_PAUSE_WHEN_EMERGENCY
                = 0x00004000    /* Send pause frame when RxFIFO reaches its
                                   emergency threshold */
};

/* UCC GETH number of threads */
enum ucc_geth_num_of_threads {
        UCC_GETH_NUM_OF_THREADS_1 = 0x1,        /* 1 */
        UCC_GETH_NUM_OF_THREADS_2 = 0x2,        /* 2 */
        UCC_GETH_NUM_OF_THREADS_4 = 0x0,        /* 4 */
        UCC_GETH_NUM_OF_THREADS_6 = 0x3,        /* 6 */
        UCC_GETH_NUM_OF_THREADS_8 = 0x4 /* 8 */
};

/* UCC GETH number of station addresses */
enum ucc_geth_num_of_station_addresses {
        UCC_GETH_NUM_OF_STATION_ADDRESSES_1,    /* 1 */
        UCC_GETH_NUM_OF_STATION_ADDRESSES_5     /* 5 */
};

/* UCC GETH 82xx Ethernet Address Container */
struct enet_addr_container {
        u8 address[ETH_ALEN];   /* ethernet address */
        enum ucc_geth_enet_address_recognition_location location;       /* location in
                                                                   82xx address
                                                                   recognition
                                                                   hardware */
        struct list_head node;
};

#define ENET_ADDR_CONT_ENTRY(ptr) list_entry(ptr, struct enet_addr_container, node)

/* UCC GETH Termination Action Descriptor (TAD) structure. */
struct ucc_geth_tad_params {
        int rx_non_dynamic_extended_features_mode;
        int reject_frame;
        enum ucc_geth_vlan_operation_tagged vtag_op;
        enum ucc_geth_vlan_operation_non_tagged vnontag_op;
        enum ucc_geth_qos_mode rqos;
        u8 vpri;
        u16 vid;
};

/* GETH protocol initialization structure */
struct ucc_geth_info {
        struct ucc_fast_info uf_info;
        int ipCheckSumCheck;
        int ipCheckSumGenerate;
        int rxExtendedFiltering;
        u32 extendedFilteringChainPointer;
        u16 typeorlen;
        int dynamicMaxFrameLength;
        int dynamicMinFrameLength;
        u8 nonBackToBackIfgPart1;
        u8 nonBackToBackIfgPart2;
        u8 miminumInterFrameGapEnforcement;
        u8 backToBackInterFrameGap;
        int ipAddressAlignment;
        int lengthCheckRx;
        u32 mblinterval;
        u16 nortsrbytetime;
        u8 fracsiz;
        u8 strictpriorityq;
        u8 txasap;
        u8 extrabw;
        int miiPreambleSupress;
        u8 altBebTruncation;
        int altBeb;
        int backPressureNoBackoff;
        int noBackoff;
        int excessDefer;
        u8 maxRetransmission;
        u8 collisionWindow;
        int pro;
        int cap;
        int rsh;
        int rlpb;
        int cam;
        int bro;
        int ecm;
        int receiveFlowControl;
        int transmitFlowControl;
        u8 maxGroupAddrInHash;
        u8 maxIndAddrInHash;
        u8 prel;
        u16 maxFrameLength;
        u16 minFrameLength;
        u16 maxD1Length;
        u16 maxD2Length;
        u16 vlantype;
        u16 vlantci;
        u32 ecamptr;
        u32 eventRegMask;
        u16 pausePeriod;
        u16 extensionField;
        struct device_node *phy_node;
        struct device_node *tbi_node;
        u8 weightfactor[NUM_TX_QUEUES];
        u8 interruptcoalescingmaxvalue[NUM_RX_QUEUES];
        u8 l2qt[UCC_GETH_VLAN_PRIORITY_MAX];
        u8 l3qt[UCC_GETH_IP_PRIORITY_MAX];
        u32 vtagtable[UCC_GETH_TX_VTAG_TABLE_ENTRY_MAX];
        u8 iphoffset[TX_IP_OFFSET_ENTRY_MAX];
        u16 bdRingLenTx[NUM_TX_QUEUES];
        u16 bdRingLenRx[NUM_RX_QUEUES];
        enum ucc_geth_num_of_station_addresses numStationAddresses;
        enum qe_fltr_largest_external_tbl_lookup_key_size
            largestexternallookupkeysize;
        enum ucc_geth_statistics_gathering_mode statisticsMode;
        enum ucc_geth_vlan_operation_tagged vlanOperationTagged;
        enum ucc_geth_vlan_operation_non_tagged vlanOperationNonTagged;
        enum ucc_geth_qos_mode rxQoSMode;
        enum ucc_geth_flow_control_mode aufc;
        enum ucc_geth_maccfg2_pad_and_crc_mode padAndCrc;
        enum ucc_geth_num_of_threads numThreadsTx;
        enum ucc_geth_num_of_threads numThreadsRx;
        unsigned int riscTx;
        unsigned int riscRx;
};

/* structure representing UCC GETH */
struct ucc_geth_private {
        struct ucc_geth_info *ug_info;
        struct ucc_fast_private *uccf;
        struct device *dev;
        struct net_device *ndev;
        struct napi_struct napi;
        struct work_struct timeout_work;
        struct ucc_geth __iomem *ug_regs;
        struct ucc_geth_init_pram *p_init_enet_param_shadow;
        struct ucc_geth_exf_global_pram __iomem *p_exf_glbl_param;
        u32 exf_glbl_param_offset;
        struct ucc_geth_rx_global_pram __iomem *p_rx_glbl_pram;
        struct ucc_geth_tx_global_pram __iomem *p_tx_glbl_pram;
        struct ucc_geth_send_queue_mem_region __iomem *p_send_q_mem_reg;
        u32 send_q_mem_reg_offset;
        struct ucc_geth_thread_data_tx __iomem *p_thread_data_tx;
        u32 thread_dat_tx_offset;
        struct ucc_geth_thread_data_rx __iomem *p_thread_data_rx;
        u32 thread_dat_rx_offset;
        struct ucc_geth_scheduler __iomem *p_scheduler;
        u32 scheduler_offset;
        struct ucc_geth_tx_firmware_statistics_pram __iomem *p_tx_fw_statistics_pram;
        u32 tx_fw_statistics_pram_offset;
        struct ucc_geth_rx_firmware_statistics_pram __iomem *p_rx_fw_statistics_pram;
        u32 rx_fw_statistics_pram_offset;
        struct ucc_geth_rx_interrupt_coalescing_table __iomem *p_rx_irq_coalescing_tbl;
        u32 rx_irq_coalescing_tbl_offset;
        struct ucc_geth_rx_bd_queues_entry __iomem *p_rx_bd_qs_tbl;
        u32 rx_bd_qs_tbl_offset;
        u8 __iomem *p_tx_bd_ring[NUM_TX_QUEUES];
        u8 __iomem *p_rx_bd_ring[NUM_RX_QUEUES];
        u8 __iomem *confBd[NUM_TX_QUEUES];
        u8 __iomem *txBd[NUM_TX_QUEUES];
        u8 __iomem *rxBd[NUM_RX_QUEUES];
        int badFrame[NUM_RX_QUEUES];
        u16 cpucount[NUM_TX_QUEUES];
        u16 __iomem *p_cpucount[NUM_TX_QUEUES];
        int indAddrRegUsed[NUM_OF_PADDRS];
        u8 paddr[NUM_OF_PADDRS][ETH_ALEN];      /* ethernet address */
        u8 numGroupAddrInHash;
        u8 numIndAddrInHash;
        u8 numIndAddrInReg;
        int rx_extended_features;
        int rx_non_dynamic_extended_features;
        struct list_head conf_skbs;
        struct list_head group_hash_q;
        struct list_head ind_hash_q;
        u32 saved_uccm;
        spinlock_t lock;
        /* pointers to arrays of skbuffs for tx and rx */
        struct sk_buff **tx_skbuff[NUM_TX_QUEUES];
        struct sk_buff **rx_skbuff[NUM_RX_QUEUES];
        /* indices pointing to the next free sbk in skb arrays */
        u16 skb_curtx[NUM_TX_QUEUES];
        u16 skb_currx[NUM_RX_QUEUES];
        /* index of the first skb which hasn't been transmitted yet. */
        u16 skb_dirtytx[NUM_TX_QUEUES];

        struct ugeth_mii_info *mii_info;
        struct phy_device *phydev;
        phy_interface_t phy_interface;
        int max_speed;
        uint32_t msg_enable;
        int oldspeed;
        int oldduplex;
        int oldlink;
        int wol_en;

        struct device_node *node;
};

void uec_set_ethtool_ops(struct net_device *netdev);
int init_flow_control_params(u32 automatic_flow_control_mode,
                int rx_flow_control_enable, int tx_flow_control_enable,
                u16 pause_period, u16 extension_field,
                u32 __iomem *upsmr_register, u32 __iomem *uempr_register,
                u32 __iomem *maccfg1_register);


#endif                          /* __UCC_GETH_H__ */