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linux/drivers/net/gianfar.h
Kapil Juneja d3c12873c3 gianfar: add support for SGMII 
Add code for initialising and configuring TBI interface and
programming it for connecting to on-chip SERDES (Lynx PHY)
in case of SGMII mode selected through HRCW at reset.

also add defines for TBI register configuration. TBI
interface is programmed towards the SERDES.

refactored mdio read/write functions to differentiate
programming local interface MII regs (e.g., for TBI) from
always programming the mdio master (TSEC1, for programming
the PHYs).

Signed-off-by: Kapil Juneja <Kapil.Juneja@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-08 22:16:38 -04:00

775 lines
26 KiB
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/*
* drivers/net/gianfar.h
*
* Gianfar Ethernet Driver
* Driver for FEC on MPC8540 and TSEC on MPC8540/MPC8560
* Based on 8260_io/fcc_enet.c
*
* Author: Andy Fleming
* Maintainer: Kumar Gala
*
* Copyright (c) 2002-2004 Freescale Semiconductor, Inc.
*
* 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.
*
* Still left to do:
* -Add support for module parameters
* -Add patch for ethtool phys id
*/
#ifndef __GIANFAR_H
#define __GIANFAR_H
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/spinlock.h>
#include <linux/mm.h>
#include <linux/mii.h>
#include <linux/phy.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/uaccess.h>
#include <linux/module.h>
#include <linux/crc32.h>
#include <linux/workqueue.h>
#include <linux/ethtool.h>
#include <linux/netdevice.h>
#include <linux/fsl_devices.h>
#include "gianfar_mii.h"
/* The maximum number of packets to be handled in one call of gfar_poll */
#define GFAR_DEV_WEIGHT 64
/* Length for FCB */
#define GMAC_FCB_LEN 8
/* Default padding amount */
#define DEFAULT_PADDING 2
/* Number of bytes to align the rx bufs to */
#define RXBUF_ALIGNMENT 64
/* The number of bytes which composes a unit for the purpose of
* allocating data buffers. ie-for any given MTU, the data buffer
* will be the next highest multiple of 512 bytes. */
#define INCREMENTAL_BUFFER_SIZE 512
#define MAC_ADDR_LEN 6
#define PHY_INIT_TIMEOUT 100000
#define GFAR_PHY_CHANGE_TIME 2
#define DEVICE_NAME "%s: Gianfar Ethernet Controller Version 1.2, "
#define DRV_NAME "gfar-enet"
extern const char gfar_driver_name[];
extern const char gfar_driver_version[];
/* These need to be powers of 2 for this driver */
#ifdef CONFIG_GFAR_NAPI
#define DEFAULT_TX_RING_SIZE 256
#define DEFAULT_RX_RING_SIZE 256
#else
#define DEFAULT_TX_RING_SIZE 64
#define DEFAULT_RX_RING_SIZE 64
#endif
#define GFAR_RX_MAX_RING_SIZE 256
#define GFAR_TX_MAX_RING_SIZE 256
#define GFAR_MAX_FIFO_THRESHOLD 511
#define GFAR_MAX_FIFO_STARVE 511
#define GFAR_MAX_FIFO_STARVE_OFF 511
#define DEFAULT_RX_BUFFER_SIZE 1536
#define TX_RING_MOD_MASK(size) (size-1)
#define RX_RING_MOD_MASK(size) (size-1)
#define JUMBO_BUFFER_SIZE 9728
#define JUMBO_FRAME_SIZE 9600
#define DEFAULT_FIFO_TX_THR 0x100
#define DEFAULT_FIFO_TX_STARVE 0x40
#define DEFAULT_FIFO_TX_STARVE_OFF 0x80
#define DEFAULT_BD_STASH 1
#define DEFAULT_STASH_LENGTH 64
#define DEFAULT_STASH_INDEX 0
/* The number of Exact Match registers */
#define GFAR_EM_NUM 15
/* Latency of interface clock in nanoseconds */
/* Interface clock latency , in this case, means the
* time described by a value of 1 in the interrupt
* coalescing registers' time fields. Since those fields
* refer to the time it takes for 64 clocks to pass, the
* latencies are as such:
* GBIT = 125MHz => 8ns/clock => 8*64 ns / tick
* 100 = 25 MHz => 40ns/clock => 40*64 ns / tick
* 10 = 2.5 MHz => 400ns/clock => 400*64 ns / tick
*/
#define GFAR_GBIT_TIME 512
#define GFAR_100_TIME 2560
#define GFAR_10_TIME 25600
#define DEFAULT_TX_COALESCE 1
#define DEFAULT_TXCOUNT 16
#define DEFAULT_TXTIME 4
#define DEFAULT_RX_COALESCE 1
#define DEFAULT_RXCOUNT 16
#define DEFAULT_RXTIME 4
#define TBIPA_VALUE 0x1f
#define MIIMCFG_INIT_VALUE 0x00000007
#define MIIMCFG_RESET 0x80000000
#define MIIMIND_BUSY 0x00000001
/* TBI register addresses */
#define MII_TBICON 0x11
/* TBICON register bit fields */
#define TBICON_CLK_SELECT 0x0020
/* MAC register bits */
#define MACCFG1_SOFT_RESET 0x80000000
#define MACCFG1_RESET_RX_MC 0x00080000
#define MACCFG1_RESET_TX_MC 0x00040000
#define MACCFG1_RESET_RX_FUN 0x00020000
#define MACCFG1_RESET_TX_FUN 0x00010000
#define MACCFG1_LOOPBACK 0x00000100
#define MACCFG1_RX_FLOW 0x00000020
#define MACCFG1_TX_FLOW 0x00000010
#define MACCFG1_SYNCD_RX_EN 0x00000008
#define MACCFG1_RX_EN 0x00000004
#define MACCFG1_SYNCD_TX_EN 0x00000002
#define MACCFG1_TX_EN 0x00000001
#define MACCFG2_INIT_SETTINGS 0x00007205
#define MACCFG2_FULL_DUPLEX 0x00000001
#define MACCFG2_IF 0x00000300
#define MACCFG2_MII 0x00000100
#define MACCFG2_GMII 0x00000200
#define MACCFG2_HUGEFRAME 0x00000020
#define MACCFG2_LENGTHCHECK 0x00000010
#define ECNTRL_INIT_SETTINGS 0x00001000
#define ECNTRL_TBI_MODE 0x00000020
#define ECNTRL_REDUCED_MODE 0x00000010
#define ECNTRL_R100 0x00000008
#define ECNTRL_REDUCED_MII_MODE 0x00000004
#define ECNTRL_SGMII_MODE 0x00000002
#define MRBLR_INIT_SETTINGS DEFAULT_RX_BUFFER_SIZE
#define MINFLR_INIT_SETTINGS 0x00000040
/* Init to do tx snooping for buffers and descriptors */
#define DMACTRL_INIT_SETTINGS 0x000000c3
#define DMACTRL_GRS 0x00000010
#define DMACTRL_GTS 0x00000008
#define TSTAT_CLEAR_THALT 0x80000000
/* Interrupt coalescing macros */
#define IC_ICEN 0x80000000
#define IC_ICFT_MASK 0x1fe00000
#define IC_ICFT_SHIFT 21
#define mk_ic_icft(x) \
(((unsigned int)x << IC_ICFT_SHIFT)&IC_ICFT_MASK)
#define IC_ICTT_MASK 0x0000ffff
#define mk_ic_ictt(x) (x&IC_ICTT_MASK)
#define mk_ic_value(count, time) (IC_ICEN | \
mk_ic_icft(count) | \
mk_ic_ictt(time))
#define RCTRL_PAL_MASK 0x001f0000
#define RCTRL_VLEX 0x00002000
#define RCTRL_FILREN 0x00001000
#define RCTRL_GHTX 0x00000400
#define RCTRL_IPCSEN 0x00000200
#define RCTRL_TUCSEN 0x00000100
#define RCTRL_PRSDEP_MASK 0x000000c0
#define RCTRL_PRSDEP_INIT 0x000000c0
#define RCTRL_PROM 0x00000008
#define RCTRL_EMEN 0x00000002
#define RCTRL_CHECKSUMMING (RCTRL_IPCSEN \
| RCTRL_TUCSEN | RCTRL_PRSDEP_INIT)
#define RCTRL_EXTHASH (RCTRL_GHTX)
#define RCTRL_VLAN (RCTRL_PRSDEP_INIT)
#define RCTRL_PADDING(x) ((x << 16) & RCTRL_PAL_MASK)
#define RSTAT_CLEAR_RHALT 0x00800000
#define TCTRL_IPCSEN 0x00004000
#define TCTRL_TUCSEN 0x00002000
#define TCTRL_VLINS 0x00001000
#define TCTRL_INIT_CSUM (TCTRL_TUCSEN | TCTRL_IPCSEN)
#define IEVENT_INIT_CLEAR 0xffffffff
#define IEVENT_BABR 0x80000000
#define IEVENT_RXC 0x40000000
#define IEVENT_BSY 0x20000000
#define IEVENT_EBERR 0x10000000
#define IEVENT_MSRO 0x04000000
#define IEVENT_GTSC 0x02000000
#define IEVENT_BABT 0x01000000
#define IEVENT_TXC 0x00800000
#define IEVENT_TXE 0x00400000
#define IEVENT_TXB 0x00200000
#define IEVENT_TXF 0x00100000
#define IEVENT_LC 0x00040000
#define IEVENT_CRL 0x00020000
#define IEVENT_XFUN 0x00010000
#define IEVENT_RXB0 0x00008000
#define IEVENT_GRSC 0x00000100
#define IEVENT_RXF0 0x00000080
#define IEVENT_FIR 0x00000008
#define IEVENT_FIQ 0x00000004
#define IEVENT_DPE 0x00000002
#define IEVENT_PERR 0x00000001
#define IEVENT_RX_MASK (IEVENT_RXB0 | IEVENT_RXF0)
#define IEVENT_TX_MASK (IEVENT_TXB | IEVENT_TXF)
#define IEVENT_ERR_MASK \
(IEVENT_RXC | IEVENT_BSY | IEVENT_EBERR | IEVENT_MSRO | \
IEVENT_BABT | IEVENT_TXC | IEVENT_TXE | IEVENT_LC \
| IEVENT_CRL | IEVENT_XFUN | IEVENT_DPE | IEVENT_PERR)
#define IMASK_INIT_CLEAR 0x00000000
#define IMASK_BABR 0x80000000
#define IMASK_RXC 0x40000000
#define IMASK_BSY 0x20000000
#define IMASK_EBERR 0x10000000
#define IMASK_MSRO 0x04000000
#define IMASK_GRSC 0x02000000
#define IMASK_BABT 0x01000000
#define IMASK_TXC 0x00800000
#define IMASK_TXEEN 0x00400000
#define IMASK_TXBEN 0x00200000
#define IMASK_TXFEN 0x00100000
#define IMASK_LC 0x00040000
#define IMASK_CRL 0x00020000
#define IMASK_XFUN 0x00010000
#define IMASK_RXB0 0x00008000
#define IMASK_GTSC 0x00000100
#define IMASK_RXFEN0 0x00000080
#define IMASK_FIR 0x00000008
#define IMASK_FIQ 0x00000004
#define IMASK_DPE 0x00000002
#define IMASK_PERR 0x00000001
#define IMASK_RX_DISABLED ~(IMASK_RXFEN0 | IMASK_BSY)
#define IMASK_DEFAULT (IMASK_TXEEN | IMASK_TXFEN | IMASK_TXBEN | \
IMASK_RXFEN0 | IMASK_BSY | IMASK_EBERR | IMASK_BABR | \
IMASK_XFUN | IMASK_RXC | IMASK_BABT | IMASK_DPE \
| IMASK_PERR)
/* Fifo management */
#define FIFO_TX_THR_MASK 0x01ff
#define FIFO_TX_STARVE_MASK 0x01ff
#define FIFO_TX_STARVE_OFF_MASK 0x01ff
/* Attribute fields */
/* This enables rx snooping for buffers and descriptors */
#define ATTR_BDSTASH 0x00000800
#define ATTR_BUFSTASH 0x00004000
#define ATTR_SNOOPING 0x000000c0
#define ATTR_INIT_SETTINGS ATTR_SNOOPING
#define ATTRELI_INIT_SETTINGS 0x0
#define ATTRELI_EL_MASK 0x3fff0000
#define ATTRELI_EL(x) (x << 16)
#define ATTRELI_EI_MASK 0x00003fff
#define ATTRELI_EI(x) (x)
/* TxBD status field bits */
#define TXBD_READY 0x8000
#define TXBD_PADCRC 0x4000
#define TXBD_WRAP 0x2000
#define TXBD_INTERRUPT 0x1000
#define TXBD_LAST 0x0800
#define TXBD_CRC 0x0400
#define TXBD_DEF 0x0200
#define TXBD_HUGEFRAME 0x0080
#define TXBD_LATECOLLISION 0x0080
#define TXBD_RETRYLIMIT 0x0040
#define TXBD_RETRYCOUNTMASK 0x003c
#define TXBD_UNDERRUN 0x0002
#define TXBD_TOE 0x0002
/* Tx FCB param bits */
#define TXFCB_VLN 0x80
#define TXFCB_IP 0x40
#define TXFCB_IP6 0x20
#define TXFCB_TUP 0x10
#define TXFCB_UDP 0x08
#define TXFCB_CIP 0x04
#define TXFCB_CTU 0x02
#define TXFCB_NPH 0x01
#define TXFCB_DEFAULT (TXFCB_IP|TXFCB_TUP|TXFCB_CTU|TXFCB_NPH)
/* RxBD status field bits */
#define RXBD_EMPTY 0x8000
#define RXBD_RO1 0x4000
#define RXBD_WRAP 0x2000
#define RXBD_INTERRUPT 0x1000
#define RXBD_LAST 0x0800
#define RXBD_FIRST 0x0400
#define RXBD_MISS 0x0100
#define RXBD_BROADCAST 0x0080
#define RXBD_MULTICAST 0x0040
#define RXBD_LARGE 0x0020
#define RXBD_NONOCTET 0x0010
#define RXBD_SHORT 0x0008
#define RXBD_CRCERR 0x0004
#define RXBD_OVERRUN 0x0002
#define RXBD_TRUNCATED 0x0001
#define RXBD_STATS 0x01ff
/* Rx FCB status field bits */
#define RXFCB_VLN 0x8000
#define RXFCB_IP 0x4000
#define RXFCB_IP6 0x2000
#define RXFCB_TUP 0x1000
#define RXFCB_CIP 0x0800
#define RXFCB_CTU 0x0400
#define RXFCB_EIP 0x0200
#define RXFCB_ETU 0x0100
#define RXFCB_CSUM_MASK 0x0f00
#define RXFCB_PERR_MASK 0x000c
#define RXFCB_PERR_BADL3 0x0008
struct txbd8
{
u16 status; /* Status Fields */
u16 length; /* Buffer length */
u32 bufPtr; /* Buffer Pointer */
};
struct txfcb {
u8 flags;
u8 reserved;
u8 l4os; /* Level 4 Header Offset */
u8 l3os; /* Level 3 Header Offset */
u16 phcs; /* Pseudo-header Checksum */
u16 vlctl; /* VLAN control word */
};
struct rxbd8
{
u16 status; /* Status Fields */
u16 length; /* Buffer Length */
u32 bufPtr; /* Buffer Pointer */
};
struct rxfcb {
u16 flags;
u8 rq; /* Receive Queue index */
u8 pro; /* Layer 4 Protocol */
u16 reserved;
u16 vlctl; /* VLAN control word */
};
struct rmon_mib
{
u32 tr64; /* 0x.680 - Transmit and Receive 64-byte Frame Counter */
u32 tr127; /* 0x.684 - Transmit and Receive 65-127 byte Frame Counter */
u32 tr255; /* 0x.688 - Transmit and Receive 128-255 byte Frame Counter */
u32 tr511; /* 0x.68c - Transmit and Receive 256-511 byte Frame Counter */
u32 tr1k; /* 0x.690 - Transmit and Receive 512-1023 byte Frame Counter */
u32 trmax; /* 0x.694 - Transmit and Receive 1024-1518 byte Frame Counter */
u32 trmgv; /* 0x.698 - Transmit and Receive 1519-1522 byte Good VLAN Frame */
u32 rbyt; /* 0x.69c - Receive Byte Counter */
u32 rpkt; /* 0x.6a0 - Receive Packet Counter */
u32 rfcs; /* 0x.6a4 - Receive FCS Error Counter */
u32 rmca; /* 0x.6a8 - Receive Multicast Packet Counter */
u32 rbca; /* 0x.6ac - Receive Broadcast Packet Counter */
u32 rxcf; /* 0x.6b0 - Receive Control Frame Packet Counter */
u32 rxpf; /* 0x.6b4 - Receive Pause Frame Packet Counter */
u32 rxuo; /* 0x.6b8 - Receive Unknown OP Code Counter */
u32 raln; /* 0x.6bc - Receive Alignment Error Counter */
u32 rflr; /* 0x.6c0 - Receive Frame Length Error Counter */
u32 rcde; /* 0x.6c4 - Receive Code Error Counter */
u32 rcse; /* 0x.6c8 - Receive Carrier Sense Error Counter */
u32 rund; /* 0x.6cc - Receive Undersize Packet Counter */
u32 rovr; /* 0x.6d0 - Receive Oversize Packet Counter */
u32 rfrg; /* 0x.6d4 - Receive Fragments Counter */
u32 rjbr; /* 0x.6d8 - Receive Jabber Counter */
u32 rdrp; /* 0x.6dc - Receive Drop Counter */
u32 tbyt; /* 0x.6e0 - Transmit Byte Counter Counter */
u32 tpkt; /* 0x.6e4 - Transmit Packet Counter */
u32 tmca; /* 0x.6e8 - Transmit Multicast Packet Counter */
u32 tbca; /* 0x.6ec - Transmit Broadcast Packet Counter */
u32 txpf; /* 0x.6f0 - Transmit Pause Control Frame Counter */
u32 tdfr; /* 0x.6f4 - Transmit Deferral Packet Counter */
u32 tedf; /* 0x.6f8 - Transmit Excessive Deferral Packet Counter */
u32 tscl; /* 0x.6fc - Transmit Single Collision Packet Counter */
u32 tmcl; /* 0x.700 - Transmit Multiple Collision Packet Counter */
u32 tlcl; /* 0x.704 - Transmit Late Collision Packet Counter */
u32 txcl; /* 0x.708 - Transmit Excessive Collision Packet Counter */
u32 tncl; /* 0x.70c - Transmit Total Collision Counter */
u8 res1[4];
u32 tdrp; /* 0x.714 - Transmit Drop Frame Counter */
u32 tjbr; /* 0x.718 - Transmit Jabber Frame Counter */
u32 tfcs; /* 0x.71c - Transmit FCS Error Counter */
u32 txcf; /* 0x.720 - Transmit Control Frame Counter */
u32 tovr; /* 0x.724 - Transmit Oversize Frame Counter */
u32 tund; /* 0x.728 - Transmit Undersize Frame Counter */
u32 tfrg; /* 0x.72c - Transmit Fragments Frame Counter */
u32 car1; /* 0x.730 - Carry Register One */
u32 car2; /* 0x.734 - Carry Register Two */
u32 cam1; /* 0x.738 - Carry Mask Register One */
u32 cam2; /* 0x.73c - Carry Mask Register Two */
};
struct gfar_extra_stats {
u64 kernel_dropped;
u64 rx_large;
u64 rx_short;
u64 rx_nonoctet;
u64 rx_crcerr;
u64 rx_overrun;
u64 rx_bsy;
u64 rx_babr;
u64 rx_trunc;
u64 eberr;
u64 tx_babt;
u64 tx_underrun;
u64 rx_skbmissing;
u64 tx_timeout;
};
#define GFAR_RMON_LEN ((sizeof(struct rmon_mib) - 16)/sizeof(u32))
#define GFAR_EXTRA_STATS_LEN (sizeof(struct gfar_extra_stats)/sizeof(u64))
/* Number of stats in the stats structure (ignore car and cam regs)*/
#define GFAR_STATS_LEN (GFAR_RMON_LEN + GFAR_EXTRA_STATS_LEN)
#define GFAR_INFOSTR_LEN 32
struct gfar_stats {
u64 extra[GFAR_EXTRA_STATS_LEN];
u64 rmon[GFAR_RMON_LEN];
};
struct gfar {
u32 tsec_id; /* 0x.000 - Controller ID register */
u8 res1[12];
u32 ievent; /* 0x.010 - Interrupt Event Register */
u32 imask; /* 0x.014 - Interrupt Mask Register */
u32 edis; /* 0x.018 - Error Disabled Register */
u8 res2[4];
u32 ecntrl; /* 0x.020 - Ethernet Control Register */
u32 minflr; /* 0x.024 - Minimum Frame Length Register */
u32 ptv; /* 0x.028 - Pause Time Value Register */
u32 dmactrl; /* 0x.02c - DMA Control Register */
u32 tbipa; /* 0x.030 - TBI PHY Address Register */
u8 res3[88];
u32 fifo_tx_thr; /* 0x.08c - FIFO transmit threshold register */
u8 res4[8];
u32 fifo_tx_starve; /* 0x.098 - FIFO transmit starve register */
u32 fifo_tx_starve_shutoff; /* 0x.09c - FIFO transmit starve shutoff register */
u8 res5[4];
u32 fifo_rx_pause; /* 0x.0a4 - FIFO receive pause threshold register */
u32 fifo_rx_alarm; /* 0x.0a8 - FIFO receive alarm threshold register */
u8 res6[84];
u32 tctrl; /* 0x.100 - Transmit Control Register */
u32 tstat; /* 0x.104 - Transmit Status Register */
u32 dfvlan; /* 0x.108 - Default VLAN Control word */
u32 tbdlen; /* 0x.10c - Transmit Buffer Descriptor Data Length Register */
u32 txic; /* 0x.110 - Transmit Interrupt Coalescing Configuration Register */
u32 tqueue; /* 0x.114 - Transmit queue control register */
u8 res7[40];
u32 tr03wt; /* 0x.140 - TxBD Rings 0-3 round-robin weightings */
u32 tr47wt; /* 0x.144 - TxBD Rings 4-7 round-robin weightings */
u8 res8[52];
u32 tbdbph; /* 0x.17c - Tx data buffer pointer high */
u8 res9a[4];
u32 tbptr0; /* 0x.184 - TxBD Pointer for ring 0 */
u8 res9b[4];
u32 tbptr1; /* 0x.18c - TxBD Pointer for ring 1 */
u8 res9c[4];
u32 tbptr2; /* 0x.194 - TxBD Pointer for ring 2 */
u8 res9d[4];
u32 tbptr3; /* 0x.19c - TxBD Pointer for ring 3 */
u8 res9e[4];
u32 tbptr4; /* 0x.1a4 - TxBD Pointer for ring 4 */
u8 res9f[4];
u32 tbptr5; /* 0x.1ac - TxBD Pointer for ring 5 */
u8 res9g[4];
u32 tbptr6; /* 0x.1b4 - TxBD Pointer for ring 6 */
u8 res9h[4];
u32 tbptr7; /* 0x.1bc - TxBD Pointer for ring 7 */
u8 res9[64];
u32 tbaseh; /* 0x.200 - TxBD base address high */
u32 tbase0; /* 0x.204 - TxBD Base Address of ring 0 */
u8 res10a[4];
u32 tbase1; /* 0x.20c - TxBD Base Address of ring 1 */
u8 res10b[4];
u32 tbase2; /* 0x.214 - TxBD Base Address of ring 2 */
u8 res10c[4];
u32 tbase3; /* 0x.21c - TxBD Base Address of ring 3 */
u8 res10d[4];
u32 tbase4; /* 0x.224 - TxBD Base Address of ring 4 */
u8 res10e[4];
u32 tbase5; /* 0x.22c - TxBD Base Address of ring 5 */
u8 res10f[4];
u32 tbase6; /* 0x.234 - TxBD Base Address of ring 6 */
u8 res10g[4];
u32 tbase7; /* 0x.23c - TxBD Base Address of ring 7 */
u8 res10[192];
u32 rctrl; /* 0x.300 - Receive Control Register */
u32 rstat; /* 0x.304 - Receive Status Register */
u8 res12[8];
u32 rxic; /* 0x.310 - Receive Interrupt Coalescing Configuration Register */
u32 rqueue; /* 0x.314 - Receive queue control register */
u8 res13[24];
u32 rbifx; /* 0x.330 - Receive bit field extract control register */
u32 rqfar; /* 0x.334 - Receive queue filing table address register */
u32 rqfcr; /* 0x.338 - Receive queue filing table control register */
u32 rqfpr; /* 0x.33c - Receive queue filing table property register */
u32 mrblr; /* 0x.340 - Maximum Receive Buffer Length Register */
u8 res14[56];
u32 rbdbph; /* 0x.37c - Rx data buffer pointer high */
u8 res15a[4];
u32 rbptr0; /* 0x.384 - RxBD pointer for ring 0 */
u8 res15b[4];
u32 rbptr1; /* 0x.38c - RxBD pointer for ring 1 */
u8 res15c[4];
u32 rbptr2; /* 0x.394 - RxBD pointer for ring 2 */
u8 res15d[4];
u32 rbptr3; /* 0x.39c - RxBD pointer for ring 3 */
u8 res15e[4];
u32 rbptr4; /* 0x.3a4 - RxBD pointer for ring 4 */
u8 res15f[4];
u32 rbptr5; /* 0x.3ac - RxBD pointer for ring 5 */
u8 res15g[4];
u32 rbptr6; /* 0x.3b4 - RxBD pointer for ring 6 */
u8 res15h[4];
u32 rbptr7; /* 0x.3bc - RxBD pointer for ring 7 */
u8 res16[64];
u32 rbaseh; /* 0x.400 - RxBD base address high */
u32 rbase0; /* 0x.404 - RxBD base address of ring 0 */
u8 res17a[4];
u32 rbase1; /* 0x.40c - RxBD base address of ring 1 */
u8 res17b[4];
u32 rbase2; /* 0x.414 - RxBD base address of ring 2 */
u8 res17c[4];
u32 rbase3; /* 0x.41c - RxBD base address of ring 3 */
u8 res17d[4];
u32 rbase4; /* 0x.424 - RxBD base address of ring 4 */
u8 res17e[4];
u32 rbase5; /* 0x.42c - RxBD base address of ring 5 */
u8 res17f[4];
u32 rbase6; /* 0x.434 - RxBD base address of ring 6 */
u8 res17g[4];
u32 rbase7; /* 0x.43c - RxBD base address of ring 7 */
u8 res17[192];
u32 maccfg1; /* 0x.500 - MAC Configuration 1 Register */
u32 maccfg2; /* 0x.504 - MAC Configuration 2 Register */
u32 ipgifg; /* 0x.508 - Inter Packet Gap/Inter Frame Gap Register */
u32 hafdup; /* 0x.50c - Half Duplex Register */
u32 maxfrm; /* 0x.510 - Maximum Frame Length Register */
u8 res18[12];
u8 gfar_mii_regs[24]; /* See gianfar_phy.h */
u8 res19[4];
u32 ifstat; /* 0x.53c - Interface Status Register */
u32 macstnaddr1; /* 0x.540 - Station Address Part 1 Register */
u32 macstnaddr2; /* 0x.544 - Station Address Part 2 Register */
u32 mac01addr1; /* 0x.548 - MAC exact match address 1, part 1 */
u32 mac01addr2; /* 0x.54c - MAC exact match address 1, part 2 */
u32 mac02addr1; /* 0x.550 - MAC exact match address 2, part 1 */
u32 mac02addr2; /* 0x.554 - MAC exact match address 2, part 2 */
u32 mac03addr1; /* 0x.558 - MAC exact match address 3, part 1 */
u32 mac03addr2; /* 0x.55c - MAC exact match address 3, part 2 */
u32 mac04addr1; /* 0x.560 - MAC exact match address 4, part 1 */
u32 mac04addr2; /* 0x.564 - MAC exact match address 4, part 2 */
u32 mac05addr1; /* 0x.568 - MAC exact match address 5, part 1 */
u32 mac05addr2; /* 0x.56c - MAC exact match address 5, part 2 */
u32 mac06addr1; /* 0x.570 - MAC exact match address 6, part 1 */
u32 mac06addr2; /* 0x.574 - MAC exact match address 6, part 2 */
u32 mac07addr1; /* 0x.578 - MAC exact match address 7, part 1 */
u32 mac07addr2; /* 0x.57c - MAC exact match address 7, part 2 */
u32 mac08addr1; /* 0x.580 - MAC exact match address 8, part 1 */
u32 mac08addr2; /* 0x.584 - MAC exact match address 8, part 2 */
u32 mac09addr1; /* 0x.588 - MAC exact match address 9, part 1 */
u32 mac09addr2; /* 0x.58c - MAC exact match address 9, part 2 */
u32 mac10addr1; /* 0x.590 - MAC exact match address 10, part 1*/
u32 mac10addr2; /* 0x.594 - MAC exact match address 10, part 2*/
u32 mac11addr1; /* 0x.598 - MAC exact match address 11, part 1*/
u32 mac11addr2; /* 0x.59c - MAC exact match address 11, part 2*/
u32 mac12addr1; /* 0x.5a0 - MAC exact match address 12, part 1*/
u32 mac12addr2; /* 0x.5a4 - MAC exact match address 12, part 2*/
u32 mac13addr1; /* 0x.5a8 - MAC exact match address 13, part 1*/
u32 mac13addr2; /* 0x.5ac - MAC exact match address 13, part 2*/
u32 mac14addr1; /* 0x.5b0 - MAC exact match address 14, part 1*/
u32 mac14addr2; /* 0x.5b4 - MAC exact match address 14, part 2*/
u32 mac15addr1; /* 0x.5b8 - MAC exact match address 15, part 1*/
u32 mac15addr2; /* 0x.5bc - MAC exact match address 15, part 2*/
u8 res20[192];
struct rmon_mib rmon; /* 0x.680-0x.73c */
u32 rrej; /* 0x.740 - Receive filer rejected packet counter */
u8 res21[188];
u32 igaddr0; /* 0x.800 - Indivdual/Group address register 0*/
u32 igaddr1; /* 0x.804 - Indivdual/Group address register 1*/
u32 igaddr2; /* 0x.808 - Indivdual/Group address register 2*/
u32 igaddr3; /* 0x.80c - Indivdual/Group address register 3*/
u32 igaddr4; /* 0x.810 - Indivdual/Group address register 4*/
u32 igaddr5; /* 0x.814 - Indivdual/Group address register 5*/
u32 igaddr6; /* 0x.818 - Indivdual/Group address register 6*/
u32 igaddr7; /* 0x.81c - Indivdual/Group address register 7*/
u8 res22[96];
u32 gaddr0; /* 0x.880 - Group address register 0 */
u32 gaddr1; /* 0x.884 - Group address register 1 */
u32 gaddr2; /* 0x.888 - Group address register 2 */
u32 gaddr3; /* 0x.88c - Group address register 3 */
u32 gaddr4; /* 0x.890 - Group address register 4 */
u32 gaddr5; /* 0x.894 - Group address register 5 */
u32 gaddr6; /* 0x.898 - Group address register 6 */
u32 gaddr7; /* 0x.89c - Group address register 7 */
u8 res23a[352];
u32 fifocfg; /* 0x.a00 - FIFO interface config register */
u8 res23b[252];
u8 res23c[248];
u32 attr; /* 0x.bf8 - Attributes Register */
u32 attreli; /* 0x.bfc - Attributes Extract Length and Extract Index Register */
u8 res24[1024];
};
/* Struct stolen almost completely (and shamelessly) from the FCC enet source
* (Ok, that's not so true anymore, but there is a family resemblence)
* The GFAR buffer descriptors track the ring buffers. The rx_bd_base
* and tx_bd_base always point to the currently available buffer.
* The dirty_tx tracks the current buffer that is being sent by the
* controller. The cur_tx and dirty_tx are equal under both completely
* empty and completely full conditions. The empty/ready indicator in
* the buffer descriptor determines the actual condition.
*/
struct gfar_private {
/* Fields controlled by TX lock */
spinlock_t txlock;
/* Pointer to the array of skbuffs */
struct sk_buff ** tx_skbuff;
/* next free skb in the array */
u16 skb_curtx;
/* First skb in line to be transmitted */
u16 skb_dirtytx;
/* Configuration info for the coalescing features */
unsigned char txcoalescing;
unsigned short txcount;
unsigned short txtime;
/* Buffer descriptor pointers */
struct txbd8 *tx_bd_base; /* First tx buffer descriptor */
struct txbd8 *cur_tx; /* Next free ring entry */
struct txbd8 *dirty_tx; /* First buffer in line
to be transmitted */
unsigned int tx_ring_size;
/* RX Locked fields */
spinlock_t rxlock;
/* skb array and index */
struct sk_buff ** rx_skbuff;
u16 skb_currx;
/* RX Coalescing values */
unsigned char rxcoalescing;
unsigned short rxcount;
unsigned short rxtime;
struct rxbd8 *rx_bd_base; /* First Rx buffers */
struct rxbd8 *cur_rx; /* Next free rx ring entry */
/* RX parameters */
unsigned int rx_ring_size;
unsigned int rx_buffer_size;
unsigned int rx_stash_size;
unsigned int rx_stash_index;
struct vlan_group *vlgrp;
/* Unprotected fields */
/* Pointer to the GFAR memory mapped Registers */
struct gfar __iomem *regs;
/* Hash registers and their width */
u32 __iomem *hash_regs[16];
int hash_width;
/* global parameters */
unsigned int fifo_threshold;
unsigned int fifo_starve;
unsigned int fifo_starve_off;
unsigned char vlan_enable:1,
rx_csum_enable:1,
extended_hash:1,
bd_stash_en:1;
unsigned short padding;
unsigned int interruptTransmit;
unsigned int interruptReceive;
unsigned int interruptError;
/* info structure initialized by platform code */
struct gianfar_platform_data *einfo;
/* PHY stuff */
struct phy_device *phydev;
struct mii_bus *mii_bus;
int oldspeed;
int oldduplex;
int oldlink;
uint32_t msg_enable;
/* Network Statistics */
struct net_device_stats stats;
struct gfar_extra_stats extra_stats;
};
static inline u32 gfar_read(volatile unsigned __iomem *addr)
{
u32 val;
val = in_be32(addr);
return val;
}
static inline void gfar_write(volatile unsigned __iomem *addr, u32 val)
{
out_be32(addr, val);
}
extern irqreturn_t gfar_receive(int irq, void *dev_id);
extern int startup_gfar(struct net_device *dev);
extern void stop_gfar(struct net_device *dev);
extern void gfar_halt(struct net_device *dev);
extern void gfar_phy_test(struct mii_bus *bus, struct phy_device *phydev,
int enable, u32 regnum, u32 read);
void gfar_init_sysfs(struct net_device *dev);
#endif /* __GIANFAR_H */
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