rclanmtl.h

linux和2410结合开发 用他可以生成2410所需的zImage文件

/*
** *************************************************************************
**
**
**     R C L A N M T L . H             $Revision: 6 $
**
**
**  RedCreek I2O LAN Message Transport Layer header file.
**
**  ---------------------------------------------------------------------
**  ---     Copyright (c) 1997-1999, RedCreek Communications Inc.     ---
**  ---                   All rights reserved.                        ---
**  ---------------------------------------------------------------------
**
**  File Description:
**
**  Header file for host I2O (Intelligent I/O) LAN message transport layer 
**  API and data types.
**
**  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.

**  This program is distributed in the hope that it will be useful,
**  but WITHOUT ANY WARRANTY; without even the implied warranty of
**  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
**  GNU General Public License for more details.

**  You should have received a copy of the GNU General Public License
**  along with this program; if not, write to the Free Software
**  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
**
** *************************************************************************
*/

#ifndef RCLANMTL_H
#define RCLANMTL_H

/* Linux specific includes */
#include <asm/types.h>
#ifdef RC_LINUX_MODULE		/* linux modules need non-library version of string functions */
#include <linux/string.h>
#else
#include <string.h>
#endif
#include <linux/delay.h>	/* for udelay() */

#include <linux/netdevice.h>
#include <linux/if_ether.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>

#include <asm/io.h>

/* Debug stuff. Define for debug output */
#undef RCDEBUG

#ifdef RCDEBUG
#define dprintk(args...) printk("rc: " args)
#else
#define dprintk(args...) { }
#endif

/* Typedefs */

 /* scalar data types */
typedef __u8 U8;
typedef __u16 U16;
typedef __u32 U32;
typedef __u8 *PU8;
typedef __u16 *PU16;
typedef __u32 *PU32;
typedef unsigned long BF;
typedef int RC_RETURN;

 /* 
    ** type PFNWAITCALLBACK
    **
    ** pointer to void function - type used for WaitCallback in some functions 
  */
typedef void (*PFNWAITCALLBACK) (void);	/* void argument avoids compiler complaint */

 /*
    ** type PFNTXCALLBACK 
    **
    ** Pointer to user's transmit callback function.  This user function is
    ** called from RCProcI2OMsgQ() when packet have been transmitted from buffers
    ** given in the RCI2OSendPacket() function.  BufferContext is a pointer to
    ** an array of 32 bit context values.  These are the values the user assigned
    ** and passed in the TCB to the RCI2OSendPacket() function.  PcktCount
    ** indicates the number of buffer context values in the BufferContext[] array.
    ** The User's TransmitCallbackFunction should recover (put back in free queue)
    ** the packet buffers associated with the buffer context values.
  */
typedef void (*PFNTXCALLBACK) (U32 Status,
			       U16 PcktCount,
			       PU32 BufferContext, struct net_device *);

 /* 
    ** type PFNRXCALLBACK 
    **
    ** Pointer to user's receive callback function.  This user function
    ** is called from RCProcI2OMsgQ() when packets have been received into
    ** previously posted packet buffers throught the RCPostRecvBuffers() function.
    ** The received callback function should process the Packet Descriptor Block
    ** pointed to by PacketDescBlock. See Packet Decription Block below.
  */
typedef void (*PFNRXCALLBACK) (U32 Status,
			       U8 PktCount,
			       U32 BucketsRemain,
			       PU32 PacketDescBlock, struct net_device *);

 /* 
    ** type PFNCALLBACK 
    **
    ** Pointer to user's generic callback function.  This user function
    ** can be passed to LANReset or LANShutdown and is called when the 
    ** the reset or shutdown is complete.
    ** Param1 and Param2 are invalid for LANReset and LANShutdown.
  */
typedef void (*PFNCALLBACK) (U32 Status,
			     U32 Param1, U32 Param2, struct net_device * dev);

/*
**  Message Unit CSR definitions for RedCreek PCI45 board
*/
typedef struct tag_rcatu {
	volatile unsigned long APICRegSel;	/* APIC Register Select */
	volatile unsigned long reserved0;
	volatile unsigned long APICWinReg;	/* APIC Window Register */
	volatile unsigned long reserved1;
	volatile unsigned long InMsgReg0;	/* inbound message register 0 */
	volatile unsigned long InMsgReg1;	/* inbound message register 1 */
	volatile unsigned long OutMsgReg0;	/* outbound message register 0 */
	volatile unsigned long OutMsgReg1;	/* outbound message register 1 */
	volatile unsigned long InDoorReg;	/* inbound doorbell register */
	volatile unsigned long InIntStat;	/* inbound interrupt status register */
	volatile unsigned long InIntMask;	/* inbound interrupt mask register */
	volatile unsigned long OutDoorReg;	/* outbound doorbell register */
	volatile unsigned long OutIntStat;	/* outbound interrupt status register */
	volatile unsigned long OutIntMask;	/* outbound interrupt mask register */
	volatile unsigned long reserved2;
	volatile unsigned long reserved3;
	volatile unsigned long InQueue;	/* inbound queue port */
	volatile unsigned long OutQueue;	/* outbound queue port */
	volatile unsigned long reserved4;
	volatile unsigned long reserver5;
	/* RedCreek extension */
	volatile unsigned long EtherMacLow;
	volatile unsigned long EtherMacHi;
	volatile unsigned long IPaddr;
	volatile unsigned long IPmask;
} *PATU;

 /* 
    ** typedef PAB
    **
    ** PCI Adapter Block - holds instance specific information.
  */
typedef struct {
	PATU p_atu;		/* ptr to  ATU register block */
	PU8 pPci45LinBaseAddr;
	PU8 pLinOutMsgBlock;
	U32 outMsgBlockPhyAddr;
	PFNTXCALLBACK pTransCallbackFunc;
	PFNRXCALLBACK pRecvCallbackFunc;
	PFNCALLBACK pRebootCallbackFunc;
	PFNCALLBACK pCallbackFunc;
	U16 IOPState;
	U16 InboundMFrameSize;
} *PPAB;

/*
 * Driver Private Area, DPA.
 */
typedef struct {
	U8 id;			/* the AdapterID */

	/* These two field are basically for the RCioctl function.
	 * I could not determine if they could be avoided. (RAA)*/
	U32 pci_addr;		/* the pci address of the adapter */
	U32 pci_addr_len;

	struct timer_list timer;	/*  timer */
	struct net_device_stats stats;	/* the statistics structure */
	unsigned long numOutRcvBuffers;	/* number of outstanding receive buffers */
	unsigned char shutdown;
	unsigned char reboot;
	unsigned char nexus;
	PU8 msgbuf;		/* Pointer to Lan Api Private Area */
	PU8 PLanApiPA;		/* Pointer to Lan Api Private Area (aligned) */
	PPAB pPab;		/* Pointer to the PCI Adapter Block */
} *PDPA;

/* PCI/45 Configuration space values */
#define RC_PCI45_VENDOR_ID  0x4916
#define RC_PCI45_DEVICE_ID  0x1960

 /* RedCreek API function return values */
#define RC_RTN_NO_ERROR             0
#define RC_RTN_I2O_NOT_INIT         1
#define RC_RTN_FREE_Q_EMPTY         2
#define RC_RTN_TCB_ERROR            3
#define RC_RTN_TRANSACTION_ERROR    4
#define RC_RTN_ADAPTER_ALREADY_INIT 5
#define RC_RTN_MALLOC_ERROR         6
#define RC_RTN_ADPTR_NOT_REGISTERED 7
#define RC_RTN_MSG_REPLY_TIMEOUT    8
#define RC_RTN_NO_I2O_STATUS        9
#define RC_RTN_NO_FIRM_VER         10
#define RC_RTN_NO_LINK_SPEED       11

/* Driver capability flags */
#define WARM_REBOOT_CAPABLE      0x01

/*
** Status - Transmit and Receive callback status word 
**
** A 32 bit Status is returned to the TX and RX callback functions.  This value
** contains both the reply status and the detailed status as follows:
**
**  32    24     16            0
**  +------+------+------------+
**  | Reply|      |  Detailed  |
**  |Status|   0  |   Status   |
**  +------+------+------------+
**
** Reply Status and Detailed Status of zero indicates No Errors.
*/
 /* reply message status defines */
#define    I2O_REPLY_STATUS_SUCCESS                    0x00
#define    I2O_REPLY_STATUS_ABORT_NO_DATA_TRANSFER     0x02
#define    I2O_REPLY_STATUS_TRANSACTION_ERROR          0x0A

/* DetailedStatusCode defines */
#define    I2O_LAN_DSC_SUCCESS                         0x0000
#define    I2O_LAN_DSC_DEVICE_FAILURE                  0x0001
#define    I2O_LAN_DSC_DESTINATION_NOT_FOUND           0x0002
#define    I2O_LAN_DSC_TRANSMIT_ERROR                  0x0003
#define    I2O_LAN_DSC_TRANSMIT_ABORTED                0x0004
#define    I2O_LAN_DSC_RECEIVE_ERROR                   0x0005
#define    I2O_LAN_DSC_RECEIVE_ABORTED                 0x0006
#define    I2O_LAN_DSC_DMA_ERROR                       0x0007
#define    I2O_LAN_DSC_BAD_PACKET_DETECTED             0x0008
#define    I2O_LAN_DSC_OUT_OF_MEMORY                   0x0009
#define    I2O_LAN_DSC_BUCKET_OVERRUN                  0x000A
#define    I2O_LAN_DSC_IOP_INTERNAL_ERROR              0x000B
#define    I2O_LAN_DSC_CANCELED                        0x000C
#define    I2O_LAN_DSC_INVALID_TRANSACTION_CONTEXT     0x000D
#define    I2O_LAN_DSC_DESTINATION_ADDRESS_DETECTED    0x000E
#define    I2O_LAN_DSC_DESTINATION_ADDRESS_OMITTED     0x000F
#define    I2O_LAN_DSC_PARTIAL_PACKET_RETURNED         0x0010

/*
** Packet Description Block   (Received packets)
**
** A pointer to this block structure is returned to the ReceiveCallback 
** function.  It contains the list of packet buffers which have either been
** filled with a packet or returned to host due to a LANReset function. 
** Currently there will only be one packet per receive bucket (buffer) posted. 
**
**   32   24               0     
**  +-----------------------+  -\
**  |   Buffer 1 Context    |    \
**  +-----------------------+     \
**  |      0xC0000000       |     / First Bucket Descriptor
**  +-----+-----------------+    /
**  |  0  | packet 1 length |   / 
**  +-----------------------+  -\
**  |   Buffer 2 Context    |    \
**  +-----------------------+     \
**  |      0xC0000000       |     / Second Bucket Descriptor
**  +-----+-----------------+    /
**  |  0  | packet 2 length |   / 
**  +-----+-----------------+  -
**  |         ...           |  ----- more bucket descriptors
**  +-----------------------+  -\
**  |   Buffer n Context    |    \
**  +-----------------------+     \
**  |      0xC0000000       |     / Last Bucket Descriptor
**  +-----+-----------------+    /
**  |  0  | packet n length |   / 
**  +-----+-----------------+  -
**
** Buffer Context values are those given to adapter in the TCB on calls to
** RCPostRecvBuffers().
**  
*/

/*
** Transaction Control Block (TCB) structure
**
** A structure like this is filled in by the user and passed by reference to 
** RCI2OSendPacket() and RCPostRecvBuffers() functions.  Minimum size is five
** 32-bit words for one buffer with one segment descriptor.  
** MAX_NMBR_POST_BUFFERS_PER_MSG defines the maximum single segment buffers
** that can be described in a given TCB.
**
**   32                    0
**  +-----------------------+
**  |   Buffer Count        |  Number of buffers in the TCB
**  +-----------------------+
**  |   Buffer 1 Context    |  first buffer reference
**  +-----------------------+
**  |   Buffer 1 Seg Count  |  number of segments in buffer
**  +-----------------------+
**  |   Buffer 1 Seg Desc 1 |  first segment descriptor (size, physical address)
**  +-----------------------+
**  |         ...           |  more segment descriptors (size, physical address)
**  +-----------------------+
**  |   Buffer 1 Seg Desc n |  last segment descriptor (size, physical address)
**  +-----------------------+
**  |   Buffer 2 Context    |  second buffer reference
**  +-----------------------+
**  |   Buffer 2 Seg Count  |  number of segments in buffer
**  +-----------------------+
**  |   Buffer 2 Seg Desc 1 |  segment descriptor (size, physical address)
**  +-----------------------+
**  |         ...           |  more segment descriptors (size, physical address)
**  +-----------------------+
**  |   Buffer 2 Seg Desc n |
**  +-----------------------+
**  |         ...           |  more buffer descriptor blocks ...
**  +-----------------------+
**  |   Buffer n Context    |
**  +-----------------------+
**  |   Buffer n Seg Count  |
**  +-----------------------+
**  |   Buffer n Seg Desc 1 |
**  +-----------------------+
**  |         ...           |
**  +-----------------------+
**  |   Buffer n Seg Desc n |
**  +-----------------------+
**
**
** A TCB for one contigous packet buffer would look like the following:
**
**   32                    0
**  +-----------------------+
**  |         1             |  one buffer in the TCB
**  +-----------------------+
**  |  <user's Context>     |  user's buffer reference
**  +-----------------------+
**  |         1             |  one segment buffer
**  +-----------------------+                            _
**  |    <buffer size>      |  size                       \ 
**  +-----------------------+                              \ segment descriptor
**  |  <physical address>   |  physical address of buffer  /
**  +-----------------------+                            _/