tn40.h

/*******************************************************************************
 *
 * tn40xx_ Driver
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 *******************************************************************************/
#ifndef _TN40XX_H
#define _TN40XX_H

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/ethtool.h>
#include <linux/mii.h>
#include <linux/crc32.h>
#include <linux/msi.h>
#include <linux/list.h>
#include <linux/uaccess.h>
#include <linux/in.h>
#include <linux/ip.h>
#include <linux/tcp.h>
#include <linux/udp.h>
#include <linux/sched.h>
#include <linux/tty.h>
#include <linux/if_ether.h>
#include <linux/if_vlan.h>
#include <linux/interrupt.h>
#include <linux/vmalloc.h>
#include <linux/version.h>
#include <asm/byteorder.h>

#define BDX_DRV_VERSION   	"linux-6.7.y-1"
#define DRIVER_AUTHOR     	"Tehuti networks"
#define BDX_DRV_DESC      	"Tehuti Network Driver from https://github.com/acooks/tn40xx-driver"
#define BDX_NIC_NAME      	"tn40xx"
#define BDX_DRV_NAME      	"tn40xx"

/*#define _EEE_ */
#define TN40_THUNDERBOLT
/*#define TN40_PTP */

#define TEHUTI_VID  			0x1FC9
#define DLINK_VID  				0x1186
#define ASUS_VID				0x1043
#define EDIMAX_VID				0x1432
#define PROMISE_VID				0x105a
#define BUFFALO_VID				0x1154

#define MDIO_SPEED_1MHZ 		(1)
#define MDIO_SPEED_6MHZ			(6)

struct bdx_priv;
u32 tbReadReg(struct bdx_priv *priv, u32 reg);
#define READ_REG(pp, reg)     tbReadReg(pp, reg)
#define WRITE_REG(pp, reg, val)   writel(val, pp->pBdxRegs + reg)

enum LOAD_FW {
	NO_FW_LOAD = 0,
	FW_LOAD,
};

/* Supported PHYs */

enum PHY_TYPE {
	PHY_TYPE_NA,		/* Port not exists or unknown PHY       */
	PHY_TYPE_CX4,		/* PHY works without initialization */
	PHY_TYPE_QT2025,	/* QT2025 10 Gbps SFP+                          */
	PHY_TYPE_MV88X3120,	/* MV88X3120  10baseT                           */
	PHY_TYPE_MV88X3310,	/* MV88X3310  10NbaseT                          */
	PHY_TYPE_MV88E2010,	/* MV88E2010  5NbaseT                           */
	PHY_TYPE_TLK10232,	/* TI TLK10232 SFP+                                     */
	PHY_TYPE_AQR105,	/* AQR105 10baseT                                       */
	PHY_TYPE_CNT
};

enum PHY_LEDS_OP {
	PHY_LEDS_SAVE,
	PHY_LEDS_RESTORE,
	PHY_LEDS_ON,
	PHY_LEDS_OFF,
	PHY_LEDS_CNT
};

/* Supported devices */
struct bdx_device_descr {
	short vid;
	short pid;
	short subdev;
	enum PHY_TYPE phy_type;
	char *name;
};

/* RX copy break size */
#define BDX_COPYBREAK     	257

/*
 * netdev tx queue len for Luxor. The default value is 1000.
 * ifconfig eth1 txqueuelen 3000 - to change it at runtime.
 */
#define BDX_NDEV_TXQ_LEN    3000

#define FIFO_SIZE       	4096
#define FIFO_EXTRA_SPACE    1024

#define MIN(x, y)  ((x) < (y) ? (x) : (y))
#define MAX(x, y)  ((x) > (y) ? (x) : (y))

#if BITS_PER_LONG == 64
#define H32_64(x)  (u32) ((u64)(x) >> 32)
#define L32_64(x)  (u32) ((u64)(x) & 0xffffffff)
#elif BITS_PER_LONG == 32
#define H32_64(x)  0
#define L32_64(x)  ((u32) (x))
#else /* BITS_PER_LONG == ?? */
#error BITS_PER_LONG is undefined. Must be 64 or 32
#endif /* BITS_PER_LONG */

#ifdef __BIG_ENDIAN
#define CPU_CHIP_SWAP32(x) (swab32(x))
#define CPU_CHIP_SWAP16(x) (swab16(x))
#else
#define CPU_CHIP_SWAP32(x) (x)
#define CPU_CHIP_SWAP16(x) (x)
#endif

#ifndef DMA_64BIT_MASK
#define DMA_64BIT_MASK  0xffffffffffffffffULL
#endif

#ifndef DMA_32BIT_MASK
#define DMA_32BIT_MASK  0x00000000ffffffffULL
#endif

#ifndef NET_IP_ALIGN
#define NET_IP_ALIGN 2
#endif

#ifndef NETDEV_TX_OK
#define NETDEV_TX_OK 0
#endif

#define LUXOR_MAX_PORT     2
#define BDX_MAX_RX_DONE    150
#define BDX_TXF_DESC_SZ    16
#define BDX_MAX_TX_LEVEL   (priv->txd_fifo0.memsz - 16)
#define BDX_MIN_TX_LEVEL   256
#define BDX_NO_UPD_PACKETS 40
#define BDX_MAX_MTU		   (1 << 14)
struct pci_nic {
	void __iomem *regs;
	struct bdx_priv *priv;
};

#define PCK_TH_MULT   128
#define INT_COAL_MULT 2

#define BITS_MASK(nbits)            ((1 << nbits)-1)
#define GET_BITS_SHIFT(x, nbits, nshift)    (((x) >> nshift)&BITS_MASK(nbits))
#define BITS_SHIFT_MASK(nbits, nshift)      (BITS_MASK(nbits) << nshift)
#define BITS_SHIFT_VAL(x, nbits, nshift)    (((x) & BITS_MASK(nbits)) << nshift)
#define BITS_SHIFT_CLEAR(x, nbits, nshift)  \
        ((x)&(~BITS_SHIFT_MASK(nbits, nshift)))

#define GET_INT_COAL(x)             GET_BITS_SHIFT(x, 15,  0)
#define GET_INT_COAL_RC(x)          GET_BITS_SHIFT(x,  1, 15)
#define GET_RXF_TH(x)               GET_BITS_SHIFT(x,  4, 16)
#define GET_PCK_TH(x)               GET_BITS_SHIFT(x,  4, 20)

#define INT_REG_VAL(coal, coal_rc, rxf_th, pck_th)  \
    ((coal) | ((coal_rc) << 15) | ((rxf_th) << 16) | ((pck_th) << 20))

struct fifo {
	dma_addr_t da;		/* Physical address of fifo (used by HW) */
	char *va;		/* Virtual address of fifo (used by SW) */
	u32 rptr, wptr;		/* Cached values of RPTR and WPTR registers,
				   they're 32 bits on both 32 and 64 archs */
	u16 reg_CFG0, reg_CFG1;
	u16 reg_RPTR, reg_WPTR;
	u16 memsz;		/* Memory size allocated for fifo */
	u16 size_mask;
	u16 pktsz;		/* Skb packet size to allocate */
	u16 rcvno;		/* Number of buffers that come from this RXF */
};

struct bdx_page {
	struct list_head free;
	int ref_count;
	int reuse_tries;
	int page_index;
	struct page *page;
	u64 dma;
};
struct rx_map {
	struct bdx_page *bdx_page;
	u64 dma;
	struct sk_buff *skb;
	u32 off;
	u32 size;		/* Mapped area (i.e. page) size */
};

struct rxdb {
	int *stack;
	struct rx_map *elems;
	int nelem;
	int top;
	void *pkt;
};

union bdx_dma_addr {
	dma_addr_t dma;
	struct sk_buff *skb;
};

/*
 * Entry in the db.
 * if len == 0 addr is dma
 * if len != 0 addr is skb
 */
struct tx_map {
	union bdx_dma_addr addr;
	int len;
};

/* tx database - implemented as circular fifo buffer*/
struct txdb {
	struct tx_map *start;	/* Points to the first element     */
	struct tx_map *end;	/* Points just AFTER the last element  */
	struct tx_map *rptr;	/* Points to the next element to read  */
	struct tx_map *wptr;	/* Points to the next element to write */
	int size;		/* Number of elements in the db    */
};

/*Internal stats structure*/
struct bdx_stats {
	u64 InUCast;		/* 0x7200 */
	u64 InMCast;		/* 0x7210 */
	u64 InBCast;		/* 0x7220 */
	u64 InPkts;		/* 0x7230 */
	u64 InErrors;		/* 0x7240 */
	u64 InDropped;		/* 0x7250 */
	u64 FrameTooLong;	/* 0x7260 */
	u64 FrameSequenceErrors;	/* 0x7270 */
	u64 InVLAN;		/* 0x7280 */
	u64 InDroppedDFE;	/* 0x7290 */
	u64 InDroppedIntFull;	/* 0x72A0 */
	u64 InFrameAlignErrors;	/* 0x72B0 */

	/* 0x72C0-0x72E0 RSRV */

	u64 OutUCast;		/* 0x72F0 */
	u64 OutMCast;		/* 0x7300 */
	u64 OutBCast;		/* 0x7310 */
	u64 OutPkts;		/* 0x7320 */

	/* 0x7330-0x7360 RSRV */

	u64 OutVLAN;		/* 0x7370 */
	u64 InUCastOctects;	/* 0x7380 */
	u64 OutUCastOctects;	/* 0x7390 */

	/* 0x73A0-0x73B0 RSRV */

	u64 InBCastOctects;	/* 0x73C0 */
	u64 OutBCastOctects;	/* 0x73D0 */
	u64 InOctects;		/* 0x73E0 */
	u64 OutOctects;		/* 0x73F0 */
};
#define PHY_LEDS				(4)
struct bdx_phy_operations {
	unsigned short leds[PHY_LEDS];
	int (*mdio_reset)(struct bdx_priv *, int, unsigned short);
	 u32(*link_changed) (struct bdx_priv *);
	void (*ledset)(struct bdx_priv *, enum PHY_LEDS_OP);
	int (*get_link_ksettings)(struct net_device *,
				  struct ethtool_link_ksettings *);
	int (*set_link_ksettings)(struct net_device *,
				  const struct ethtool_link_ksettings *);
#ifdef _EEE_
#ifdef ETHTOOL_GEEE
	int (*get_eee)(struct net_device *, struct ethtool_eee *);
#endif
#ifdef ETHTOOL_SEEE
	int (*set_eee)(struct bdx_priv *);
#endif
	int (*reset_eee)(struct bdx_priv *);
#endif
	u32 mdio_speed;
};

struct bdx_rx_page_table {
	int page_size;
	int buf_size;
	struct bdx_page *bdx_pages;
	int nPages;
	int nFrees;
	int max_frees;
	int page_order;
	gfp_t gfp_mask;
	int nBufInPage;
	struct list_head free_list;
};

struct bdx_priv {
	void __iomem *pBdxRegs;
	struct net_device *ndev;
	struct napi_struct napi;
	/* RX FIFOs: 1 for data (full) descs, and 2 for free descs */
	struct fifo rxd_fifo0;
	struct fifo rxf_fifo0;
	struct rxdb *rxdb0;	/* Rx dbs to store skb pointers */
	struct vlan_group *vlgrp;
	/* Tx FIFOs: 1 for data desc, 1 for empty (acks) desc */
	struct fifo txd_fifo0;
	struct fifo txf_fifo0;
	struct txdb txdb;
	int tx_level;
	int tx_update_mark;
	int tx_noupd;

	/* Rarely used */
	u8 phy_mdio_port;
	enum PHY_TYPE phy_type;
	int stats_flag;
	struct bdx_stats hw_stats;
	struct net_device_stats net_stats;
	struct pci_dev *pdev;
	struct pci_nic *nic;
	u8 txd_size;
	u8 txf_size;
	u8 rxd_size;
	u8 rxf_size;
	u32 rdintcm;
	u32 tdintcm;
	u16 id;
	u32 isr_mask;
	int link_speed;		/* 0- no link or SPEED_100 SPEED_1000 SPEED_10000 */
	u32 link_loop_cnt;
	u32 sfp_mod_type;
	struct bdx_phy_operations phy_ops;
	/* SHORT_PKT_FIX */
	u32 b0_len;
	dma_addr_t b0_dma;	/* Physical address of buffer */
	char *b0_va;		/* Virtual address of buffer */
	u32 errmsg_count;
	/* SHORT_PKT_FIX end */
	u16 deviceId;
	u16 subsystem_vendor;
	u16 subsystem_device;
	u32 advertising, autoneg;
#ifdef __ETHTOOL_DECLARE_LINK_MODE_MASK
	 __ETHTOOL_DECLARE_LINK_MODE_MASK(link_advertising);
#endif
	u32 eee_enabled;
	struct bdx_rx_page_table rx_page_table;
#ifdef TN40_THUNDERBOLT
	int bDeviceRemoved;
#endif
};
#if !defined(SPEED_5000)
#define SPEED_5000 				(5000)
#endif
#if !defined(SPEED_2500)
#define SPEED_2500 				(2500)
#endif
#define SPEED_1000X 			(1001)
#define SPEED_100X 				(101)

#define MAX_ERRMSGS				(3)
/* RX FREE descriptor - 64bit*/
struct rxf_desc {
	u32 info;		/* Buffer Count + Info - described below */
	u32 va_lo;		/* VAdr[31:0]    */
	u32 va_hi;		/* VAdr[63:32]   */
	u32 pa_lo;		/* PAdr[31:0]    */
	u32 pa_hi;		/* PAdr[63:32]   */
	u32 len;		/* Buffer Length */
};

#define GET_RXD_BC(x)       GET_BITS_SHIFT((x), 5, 0)
#define GET_RXD_RXFQ(x)     GET_BITS_SHIFT((x), 2, 8)
#define GET_RXD_TO(x)       GET_BITS_SHIFT((x), 1, 15)
#define GET_RXD_TYPE(x)     GET_BITS_SHIFT((x), 4, 16)
#define GET_RXD_ERR(x)      GET_BITS_SHIFT((x), 6, 21)
#define GET_RXD_RXP(x)      GET_BITS_SHIFT((x), 1, 27)
#define GET_RXD_PKT_ID(x)   GET_BITS_SHIFT((x), 3, 28)
#define GET_RXD_VTAG(x)     GET_BITS_SHIFT((x), 1, 31)
#define GET_RXD_VLAN_ID(x)  GET_BITS_SHIFT((x), 12, 0)
#define GET_RXD_VLAN_TCI(x) GET_BITS_SHIFT((x), 16, 0)
#define GET_RXD_CFI(x)      GET_BITS_SHIFT((x), 1, 12)
#define GET_RXD_PRIO(x)     GET_BITS_SHIFT((x), 3, 13)

#define GET_RSS_FUNC(x)     GET_BITS_SHIFT((x), 2, 0)
#define GET_RSS_TYPE(x)     GET_BITS_SHIFT((x), 8, 8)
#define GET_RSS_TCPU(x)     GET_BITS_SHIFT((x), 8, 16)

/* GET_RXD_ERR(x) error types: */
#define IS_FCS_ERR(x)  ((x) & 0x4)	/* Frame Check Sequence Error */
#define RXD_ERR_UDP_CSUM    0x8
#define RXD_ERR_TCP_CSUM    0x10

/* GET_RXD_PKT_ID(x) can return these known values: */
#define PKT_ID_TCP 1
#define PKT_ID_UDP 2

struct rxd_desc {
	u32 rxd_val1;
	u16 len;
	u16 rxd_vlan;
	u32 va_lo;
	u32 va_hi;
	u32 rss_lo;
	u32 rss_hash;
};

#define MAX_PBL				(19)
/* PBL describes each virtual buffer to be transmitted from the host. */
struct pbl {
	u32 pa_lo;
	u32 pa_hi;
	u32 len;
};

/*
 * First word for TXD descriptor. It means: type = 3 for regular Tx packet,
 * hw_csum = 7 for IP+UDP+TCP HW checksums.
 */
#define TXD_W1_VAL(bc, checksum, vtag, lgsnd, vlan_id)  \
    ((bc) | ((checksum) << 5)  | ((vtag) << 8) |    \
    ((lgsnd) << 9) | (0x30000) | ((vlan_id & 0x0fff) << 20) | (((vlan_id >> 13) & 7) << 13))

struct txd_desc {
	u32 txd_val1;
	u16 mss;
	u16 length;
	u32 va_lo;
	u32 va_hi;
	struct pbl pbl[0];	/* Fragments */
} __attribute__((packed));

struct txf_desc {
	u32 status;
	u32 va_lo;		/* VAdr[31:0]    */
	u32 va_hi;		/* VAdr[63:32]   */
	u32 pad;
} __attribute__((packed));

/* Register region size */
#define BDX_REGS_SIZE           0x10000

/* Registers from 0x0000-0x00fc were remapped to 0x4000-0x40fc */
#define regTXD_CFG1_0           0x4000
#define regTXD_CFG1_1           0x4004
#define regTXD_CFG1_2           0x4008
#define regTXD_CFG1_3           0x400C

#define regRXF_CFG1_0           0x4010
#define regRXF_CFG1_1           0x4014
#define regRXF_CFG1_2           0x4018
#define regRXF_CFG1_3           0x401C

#define regRXD_CFG1_0           0x4020
#define regRXD_CFG1_1           0x4024
#define regRXD_CFG1_2           0x4028
#define regRXD_CFG1_3           0x402C

#define regTXF_CFG1_0           0x4030
#define regTXF_CFG1_1           0x4034
#define regTXF_CFG1_2           0x4038
#define regTXF_CFG1_3           0x403C

#define regTXD_CFG0_0           0x4040
#define regTXD_CFG0_1           0x4044
#define regTXD_CFG0_2           0x4048
#define regTXD_CFG0_3           0x404C

#define regRXF_CFG0_0           0x4050
#define regRXF_CFG0_1           0x4054
#define regRXF_CFG0_2           0x4058
#define regRXF_CFG0_3           0x405C

#define regRXD_CFG0_0           0x4060
#define regRXD_CFG0_1           0x4064
#define regRXD_CFG0_2           0x4068
#define regRXD_CFG0_3           0x406C

#define regTXF_CFG0_0           0x4070
#define regTXF_CFG0_1           0x4074
#define regTXF_CFG0_2           0x4078
#define regTXF_CFG0_3           0x407C

#define regTXD_WPTR_0           0x4080
#define regTXD_WPTR_1           0x4084
#define regTXD_WPTR_2           0x4088
#define regTXD_WPTR_3           0x408C

#define regRXF_WPTR_0           0x4090
#define regRXF_WPTR_1           0x4094
#define regRXF_WPTR_2           0x4098
#define regRXF_WPTR_3           0x409C

#define regRXD_WPTR_0           0x40A0
#define regRXD_WPTR_1           0x40A4
#define regRXD_WPTR_2           0x40A8
#define regRXD_WPTR_3           0x40AC

#define regTXF_WPTR_0           0x40B0
#define regTXF_WPTR_1           0x40B4
#define regTXF_WPTR_2           0x40B8
#define regTXF_WPTR_3           0x40BC

#define regTXD_RPTR_0           0x40C0
#define regTXD_RPTR_1           0x40C4
#define regTXD_RPTR_2           0x40C8
#define regTXD_RPTR_3           0x40CC

#define regRXF_RPTR_0           0x40D0
#define regRXF_RPTR_1           0x40D4
#define regRXF_RPTR_2           0x40D8
#define regRXF_RPTR_3           0x40DC

#define regRXD_RPTR_0           0x40E0
#define regRXD_RPTR_1           0x40E4
#define regRXD_RPTR_2           0x40E8
#define regRXD_RPTR_3           0x40EC

#define regTXF_RPTR_0           0x40F0
#define regTXF_RPTR_1           0x40F4
#define regTXF_RPTR_2           0x40F8
#define regTXF_RPTR_3           0x40FC

/* Hardware versioning */
#define  FW_VER             0x5010
#define  SROM_VER           0x5020
#define  FPGA_VER           0x5030
#define  FPGA_SEED          0x5040

/* Registers from 0x0100-0x0150 were remapped to 0x5100-0x5150 */
#define regISR regISR0
#define regISR0             0x5100

#define regIMR regIMR0
#define regIMR0             0x5110

#define regRDINTCM0         0x5120
#define regRDINTCM2         0x5128

#define regTDINTCM0         0x5130

#define regISR_MSK0         0x5140

#define regINIT_SEMAPHORE       0x5170
#define regINIT_STATUS          0x5180

#define regMAC_LNK_STAT         0x0200
#define MAC_LINK_STAT           0x0004	/* Link state */

#define regBLNK_LED         0x0210

#define regGMAC_RXF_A           0x1240

#define regUNC_MAC0_A           0x1250
#define regUNC_MAC1_A           0x1260
#define regUNC_MAC2_A           0x1270

#define regVLAN_0           0x1800

#define regMAX_FRAME_A          0x12C0

#define regRX_MAC_MCST0         0x1A80
#define regRX_MAC_MCST1         0x1A84
#define MAC_MCST_NUM            15
#define regRX_MCST_HASH0        0x1A00
#define MAC_MCST_HASH_NUM        8

#define regVPC              0x2300
#define regVIC              0x2320
#define regVGLB             0x2340

#define regCLKPLL           0x5000

/* MDIO interface */

#define regMDIO_CMD_STAT	0x6030
#define regMDIO_CMD			0x6034
#define regMDIO_DATA		0x6038
#define regMDIO_ADDR		0x603C
#define GET_MDIO_BUSY(x)	GET_BITS_SHIFT(x, 1, 0)
#define GET_MDIO_RD_ERR(x)	GET_BITS_SHIFT(x, 1, 1)

/*for 10G only*/
#define regRSS_CNG      0x000000b0

#define RSS_ENABLED     0x00000001
#define RSS_HFT_TOEPLITZ    0x00000002
#define RSS_HASH_IPV4       0x00000100
#define RSS_HASH_TCP_IPV4   0x00000200
#define RSS_HASH_IPV6       0x00000400
#define RSS_HASH_IPV6_EX    0x00000800
#define RSS_HASH_TCP_IPV6   0x00001000
#define RSS_HASH_TCP_IPV6_EX    0x00002000

#define regRSS_HASH_BASE        0x0400
#define RSS_HASH_LEN            40
#define regRSS_INDT_BASE        0x0600
#define RSS_INDT_LEN               256

#define regREVISION         0x6000
#define regSCRATCH          0x6004
#define regCTRLST           0x6008
#define regMAC_ADDR_0           0x600C
#define regMAC_ADDR_1           0x6010
#define regFRM_LENGTH           0x6014
#define regPAUSE_QUANT          0x6054
#define regRX_FIFO_SECTION      0x601C
#define regTX_FIFO_SECTION      0x6020
#define regRX_FULLNESS          0x6024
#define regTX_FULLNESS          0x6028
#define regHASHTABLE            0x602C

#define regRST_PORT         0x7000
#define regDIS_PORT         0x7010
#define regRST_QU           0x7020
#define regDIS_QU           0x7030

#define regCTRLST_TX_ENA        0x0001
#define regCTRLST_RX_ENA        0x0002
#define regCTRLST_PRM_ENA       0x0010
#define regCTRLST_PAD_ENA       0x0020

#define regCTRLST_BASE          (regCTRLST_PAD_ENA|regCTRLST_PRM_ENA)

#define regRX_FLT               0x1400

/* TXD TXF RXF RXD  CONFIG 0x0000 --- 0x007c*/
#define  TX_RX_CFG1_BASE    0xffffffff	/*0-31 */
#define  TX_RX_CFG0_BASE    0xfffff000	/*31:12 */
#define  TX_RX_CFG0_RSVD    0x00000ffc	/*11:2 */
#define  TX_RX_CFG0_SIZE    0x00000003	/*1:0 */

/*  TXD TXF RXF RXD  WRITE 0x0080 --- 0x00BC */
#define  TXF_WPTR_WR_PTR    0x00007ff8	/*14:3 */

/*  TXD TXF RXF RXD  READ  0x00CO --- 0x00FC */
#define  TXF_RPTR_RD_PTR    0x00007ff8	/*14:3 */

#define TXF_WPTR_MASK 0x7ff0	/* The last 4 bits are dropped
				 * size is rounded to 16 */

/*  regISR 0x0100 */
/*  regIMR 0x0110 */
#define  IMR_INPROG     0x80000000	/*31 */
#define  IR_LNKCHG1     0x10000000	/*28 */
#define  IR_LNKCHG0     0x08000000	/*27 */
#define  IR_GPIO        0x04000000	/*26 */
#define  IR_RFRSH       0x02000000	/*25 */
#define  IR_RSVD        0x01000000	/*24 */
#define  IR_SWI         0x00800000	/*23 */
#define  IR_RX_FREE_3   0x00400000	/*22 */
#define  IR_RX_FREE_2   0x00200000	/*21 */
#define  IR_RX_FREE_1   0x00100000	/*20 */
#define  IR_RX_FREE_0   0x00080000	/*19 */
#define  IR_TX_FREE_3   0x00040000	/*18 */
#define  IR_TX_FREE_2   0x00020000	/*17 */
#define  IR_TX_FREE_1   0x00010000	/*16 */
#define  IR_TX_FREE_0   0x00008000	/*15 */
#define  IR_RX_DESC_3   0x00004000	/*14 */
#define  IR_RX_DESC_2   0x00002000	/*13 */
#define  IR_RX_DESC_1   0x00001000	/*12 */
#define  IR_RX_DESC_0   0x00000800	/*11 */
#define  IR_PSE         0x00000400	/*10 */
#define  IR_TMR3        0x00000200	/* 9 */
#define  IR_TMR2        0x00000100	/* 8 */
#define  IR_TMR1        0x00000080	/* 7 */
#define  IR_TMR0        0x00000040	/* 6 */
#define  IR_VNT         0x00000020	/* 5 */
#define  IR_RxFL        0x00000010	/* 4 */
#define  IR_SDPERR      0x00000008	/* 3 */
#define  IR_TR          0x00000004	/* 2 */
#define  IR_PCIE_LINK   0x00000002	/* 1 */
#define  IR_PCIE_TOUT   0x00000001	/* 0 */

#define  IR_EXTRA (IR_RX_FREE_0 | IR_LNKCHG0 | IR_LNKCHG1 | IR_PSE | \
    IR_TMR0 | IR_PCIE_LINK | IR_PCIE_TOUT)
#define  IR_RUN (IR_EXTRA | IR_RX_DESC_0 | IR_TX_FREE_0)
#define  IR_ALL 0xfdfffff7

#define  IR_LNKCHG0_ofst    27

#define  GMAC_RX_FILTER_OSEN    0x1000	/* shared OS enable */
#define  GMAC_RX_FILTER_TXFC    0x0400	/* Tx flow control */
#define  GMAC_RX_FILTER_RSV0    0x0200	/* reserved */
#define  GMAC_RX_FILTER_FDA     0x0100	/* filter out direct address */
#define  GMAC_RX_FILTER_AOF     0x0080	/* accept over run */
#define  GMAC_RX_FILTER_ACF     0x0040	/* accept control frames */
#define  GMAC_RX_FILTER_ARUNT   0x0020	/* accept under run */
#define  GMAC_RX_FILTER_ACRC    0x0010	/* accept crc error */
#define  GMAC_RX_FILTER_AM      0x0008	/* accept multicast */
#define  GMAC_RX_FILTER_AB      0x0004	/* accept broadcast */
#define  GMAC_RX_FILTER_PRM     0x0001	/* [0:1] promiscuous mode */

#define  MAX_FRAME_AB_VAL   0x3fff	/* 13:0 */

#define  CLKPLL_PLLLKD      0x0200	/* 9 */
#define  CLKPLL_RSTEND      0x0100	/* 8 */
#define  CLKPLL_SFTRST      0x0001	/* 0 */

#define  CLKPLL_LKD     (CLKPLL_PLLLKD|CLKPLL_RSTEND)

/*
 * PCI-E Device Control Register (Offset 0x88)
 * Source: Luxor Data Sheet, 7.1.3.3.3
 */
#define PCI_DEV_CTRL_REG 0x88
#define GET_DEV_CTRL_MAXPL(x)   GET_BITS_SHIFT(x, 3, 5)
#define GET_DEV_CTRL_MRRS(x)    GET_BITS_SHIFT(x, 3, 12)

/*
 * PCI-E Link Status Register (Offset 0x92)
 * Source: Luxor Data Sheet, 7.1.3.3.7
 */
#define PCI_LINK_STATUS_REG 0x92
#define GET_LINK_STATUS_LANES(x) GET_BITS_SHIFT(x, 6, 4)

#if !defined(netdev_mc_count)
#define netdev_mc_count(dev) ((dev)->mc_count)
#define netdev_for_each_mc_addr(mclist, dev) \
    for (mclist = dev->mc_list; mclist; mclist = mclist->next)
#endif

#define dev_mc_list     netdev_hw_addr
#define dmi_addr    addr

/*
 * Note: 32 bit  kernels use 16 bits for page_offset. Do not increase
 *       LUXOR__MAX_PAGE_SIZE beyind 64K!
 */
#if BITS_PER_LONG > 32
#define LUXOR__MAX_PAGE_SIZE    0x40000
#else
#define LUXOR__MAX_PAGE_SIZE    0x10000
#endif

#if defined(NETIF_F_GRO)
#define IS_GRO(ndev)            ((ndev->features & NETIF_F_GRO) != 0)
#else
#define NETIF_F_GRO         0

#define IS_GRO(ndev)            0
#endif

#if !defined(NETIF_F_VLAN_TSO)
#define NETIF_F_VLAN_TSO        0	/* RHEL specific flag */
#endif
#if !defined(NETIF_F_VLAN_CSUM)
#define NETIF_F_VLAN_CSUM       0	/* RHEL specific flag */
#endif
#if !defined(NETIF_F_RXHASH)
#define NETIF_F_RXHASH          0
#endif

#if !defined(MAX)
#define MAX(a, b)   ((a) > (b) ? (a) : (b))
#endif
#if !defined(MIN)
#define MIN(a, b)   ((a) < (b) ? (a) : (b))
#endif
#if !defined(ROUND_UP)
#define ROUND_UP(n, m)  (((n) + (m - 1)) & ~(m - 1))
#endif

u32 bdx_mdio_get(struct bdx_priv *priv);
int bdx_mdio_write(struct bdx_priv *priv, int device, int port, u16 addr,
		   u16 data);
u16 bdx_mdio_read(struct bdx_priv *priv, int device, int port, u16 addr);
int bdx_speed_set(struct bdx_priv *priv, u32 speed);
void bdx_speed_changed(struct bdx_priv *priv, u32 speed);

#define PHY_MDIO_READ(priv,device,addr) bdx_mdio_read(priv,(device),(priv)->phy_mdio_port,(addr))
#define PHY_MDIO_WRITE(priv,device,addr,data) bdx_mdio_write((priv),(device),(priv)->phy_mdio_port,    (addr), (data))

#define  BDX_MDIO_WRITE(priv, space, addr, val) \
    if (bdx_mdio_write((priv), (space), port, (addr), (val))) {     \
        pr_err("bdx: failed to write  to phy at %x.%x val %x\n", \
                    (space),(addr),(val));                            \
        return 1;                                             \
    }

enum PHY_TYPE MV88X3310_register(struct bdx_priv *priv);
enum PHY_TYPE MV88X3120_register(struct bdx_priv *priv);
enum PHY_TYPE QT2025_register(struct bdx_priv *priv);
enum PHY_TYPE CX4_register(struct bdx_priv *priv);
enum PHY_TYPE TLK10232_register(struct bdx_priv *priv);
enum PHY_TYPE AQR105_register(struct bdx_priv *priv);

#ifndef vlan_tx_tag_present
#define vlan_tx_tag_present skb_vlan_tag_present
#endif
#ifndef vlan_tx_tag_get
#define vlan_tx_tag_get skb_vlan_tag_get
#endif

#endif /* _TN40XX_H */