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[SCSI] initio: Convert into a real Linux driver and update to modern style 

This is a mix of a grand clean up I did and a reworking of the hotplug
support by Christoph. In testing it works as well as the previous code
did (that is -quite badly-) but we can now read it and as it settles in
actually debug the long standing problems it shares with the old driver.

Signed-off-by: Alan Cox <alan@redhat.com>

From Christoph:

removal of the BSD license is also fine with me, but should really
get a mention in the changelog aswell.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
hifive-unleashed-5.1
Alan Cox 2007-05-21 15:06:43 +01:00 committed by James Bottomley
parent 9d399cc7fe
commit 72d39fea90
2 changed files with 1928 additions and 2138 deletions
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3763
drivers/scsi/initio.c
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303
drivers/scsi/initio.h
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@ -4,6 +4,8 @@
* Copyright (c) 1994-1998 Initio Corporation
* All rights reserved.
*
* Cleanups (c) Copyright 2007 Red Hat <alan@redhat.com>
*
* 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, or (at your option)
@ -18,27 +20,6 @@
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*
* --------------------------------------------------------------------------
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification, immediately at the beginning of the file.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* Where this Software is combined with software released under the terms of
* the GNU General Public License ("GPL") and the terms of the GPL would require the
* combined work to also be released under the terms of the GPL, the terms
* and conditions of this License will apply in addition to those of the
* GPL with the exception of any terms or conditions of this License that
* conflict with, or are expressly prohibited by, the GPL.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
@ -56,17 +37,6 @@
#include <linux/types.h>
#define ULONG unsigned long
#define USHORT unsigned short
#define UCHAR unsigned char
#define BYTE unsigned char
#define WORD unsigned short
#define DWORD unsigned long
#define UBYTE unsigned char
#define UWORD unsigned short
#define UDWORD unsigned long
#define U32 u32
#define TOTAL_SG_ENTRY 32
#define MAX_SUPPORTED_ADAPTERS 8
#define MAX_OFFSET 15
@ -368,55 +338,55 @@ typedef struct {
/************************************************************************/
/* Scatter-Gather Element Structure */
/************************************************************************/
typedef struct SG_Struc {
U32 SG_Ptr; /* Data Pointer */
U32 SG_Len; /* Data Length */
} SG;
struct sg_entry {
u32 data; /* Data Pointer */
u32 len; /* Data Length */
};
/***********************************************************************
SCSI Control Block
************************************************************************/
typedef struct Scsi_Ctrl_Blk {
struct Scsi_Ctrl_Blk *SCB_NxtScb;
UBYTE SCB_Status; /*4 */
UBYTE SCB_NxtStat; /*5 */
UBYTE SCB_Mode; /*6 */
UBYTE SCB_Msgin; /*7 SCB_Res0 */
UWORD SCB_SGIdx; /*8 */
UWORD SCB_SGMax; /*A */
struct scsi_ctrl_blk {
struct scsi_ctrl_blk *next;
u8 status; /*4 */
u8 next_state; /*5 */
u8 mode; /*6 */
u8 msgin; /*7 SCB_Res0 */
u16 sgidx; /*8 */
u16 sgmax; /*A */
#ifdef ALPHA
U32 SCB_Reserved[2]; /*C */
u32 reserved[2]; /*C */
#else
U32 SCB_Reserved[3]; /*C */
u32 reserved[3]; /*C */
#endif
U32 SCB_XferLen; /*18 Current xfer len */
U32 SCB_TotXLen; /*1C Total xfer len */
U32 SCB_PAddr; /*20 SCB phy. Addr. */
u32 xferlen; /*18 Current xfer len */
u32 totxlen; /*1C Total xfer len */
u32 paddr; /*20 SCB phy. Addr. */
UBYTE SCB_Opcode; /*24 SCB command code */
UBYTE SCB_Flags; /*25 SCB Flags */
UBYTE SCB_Target; /*26 Target Id */
UBYTE SCB_Lun; /*27 Lun */
U32 SCB_BufPtr; /*28 Data Buffer Pointer */
U32 SCB_BufLen; /*2C Data Allocation Length */
UBYTE SCB_SGLen; /*30 SG list # */
UBYTE SCB_SenseLen; /*31 Sense Allocation Length */
UBYTE SCB_HaStat; /*32 */
UBYTE SCB_TaStat; /*33 */
UBYTE SCB_CDBLen; /*34 CDB Length */
UBYTE SCB_Ident; /*35 Identify */
UBYTE SCB_TagMsg; /*36 Tag Message */
UBYTE SCB_TagId; /*37 Queue Tag */
UBYTE SCB_CDB[12]; /*38 */
U32 SCB_SGPAddr; /*44 SG List/Sense Buf phy. Addr. */
U32 SCB_SensePtr; /*48 Sense data pointer */
void (*SCB_Post) (BYTE *, BYTE *); /*4C POST routine */
struct scsi_cmnd *SCB_Srb; /*50 SRB Pointer */
SG SCB_SGList[TOTAL_SG_ENTRY]; /*54 Start of SG list */
} SCB;
u8 opcode; /*24 SCB command code */
u8 flags; /*25 SCB Flags */
u8 target; /*26 Target Id */
u8 lun; /*27 Lun */
u32 bufptr; /*28 Data Buffer Pointer */
u32 buflen; /*2C Data Allocation Length */
u8 sglen; /*30 SG list # */
u8 senselen; /*31 Sense Allocation Length */
u8 hastat; /*32 */
u8 tastat; /*33 */
u8 cdblen; /*34 CDB Length */
u8 ident; /*35 Identify */
u8 tagmsg; /*36 Tag Message */
u8 tagid; /*37 Queue Tag */
u8 cdb[12]; /*38 */
u32 sgpaddr; /*44 SG List/Sense Buf phy. Addr. */
u32 senseptr; /*48 Sense data pointer */
void (*post) (u8 *, u8 *); /*4C POST routine */
struct scsi_cmnd *srb; /*50 SRB Pointer */
struct sg_entry sglist[TOTAL_SG_ENTRY]; /*54 Start of SG list */
};
/* Bit Definition for SCB_Status */
/* Bit Definition for status */
#define SCB_RENT 0x01
#define SCB_PEND 0x02
#define SCB_CONTIG 0x04 /* Contigent Allegiance */
@ -425,17 +395,17 @@ typedef struct Scsi_Ctrl_Blk {
#define SCB_DONE 0x20
/* Opcodes of SCB_Opcode */
/* Opcodes for opcode */
#define ExecSCSI 0x1
#define BusDevRst 0x2
#define AbortCmd 0x3
/* Bit Definition for SCB_Mode */
/* Bit Definition for mode */
#define SCM_RSENS 0x01 /* request sense mode */
/* Bit Definition for SCB_Flags */
/* Bit Definition for flags */
#define SCF_DONE 0x01
#define SCF_POST 0x02
#define SCF_SENSE 0x04
@ -492,15 +462,14 @@ typedef struct Scsi_Ctrl_Blk {
Target Device Control Structure
**********************************************************************/
typedef struct Tar_Ctrl_Struc {
UWORD TCS_Flags; /* 0 */
UBYTE TCS_JS_Period; /* 2 */
UBYTE TCS_SConfig0; /* 3 */
UWORD TCS_DrvFlags; /* 4 */
UBYTE TCS_DrvHead; /* 6 */
UBYTE TCS_DrvSector; /* 7 */
} TCS;
struct target_control {
u16 flags;
u8 js_period;
u8 sconfig0;
u16 drv_flags;
u8 heads;
u8 sectors;
};
/***********************************************************************
Target Device Control Structure
@ -523,62 +492,53 @@ typedef struct Tar_Ctrl_Struc {
#define TCF_DRV_EN_TAG 0x0800
#define TCF_DRV_255_63 0x0400
typedef struct I91u_Adpt_Struc {
UWORD ADPT_BIOS; /* 0 */
UWORD ADPT_BASE; /* 1 */
UBYTE ADPT_Bus; /* 2 */
UBYTE ADPT_Device; /* 3 */
UBYTE ADPT_INTR; /* 4 */
} INI_ADPT_STRUCT;
/***********************************************************************
Host Adapter Control Structure
************************************************************************/
typedef struct Ha_Ctrl_Struc {
UWORD HCS_Base; /* 00 */
UWORD HCS_BIOS; /* 02 */
UBYTE HCS_Intr; /* 04 */
UBYTE HCS_SCSI_ID; /* 05 */
UBYTE HCS_MaxTar; /* 06 */
UBYTE HCS_NumScbs; /* 07 */
struct initio_host {
u16 addr; /* 00 */
u16 bios_addr; /* 02 */
u8 irq; /* 04 */
u8 scsi_id; /* 05 */
u8 max_tar; /* 06 */
u8 num_scbs; /* 07 */
UBYTE HCS_Flags; /* 08 */
UBYTE HCS_Index; /* 09 */
UBYTE HCS_HaId; /* 0A */
UBYTE HCS_Config; /* 0B */
UWORD HCS_IdMask; /* 0C */
UBYTE HCS_Semaph; /* 0E */
UBYTE HCS_Phase; /* 0F */
UBYTE HCS_JSStatus0; /* 10 */
UBYTE HCS_JSInt; /* 11 */
UBYTE HCS_JSStatus1; /* 12 */
UBYTE HCS_SConf1; /* 13 */
u8 flags; /* 08 */
u8 index; /* 09 */
u8 ha_id; /* 0A */
u8 config; /* 0B */
u16 idmask; /* 0C */
u8 semaph; /* 0E */
u8 phase; /* 0F */
u8 jsstatus0; /* 10 */
u8 jsint; /* 11 */
u8 jsstatus1; /* 12 */
u8 sconf1; /* 13 */
UBYTE HCS_Msg[8]; /* 14 */
SCB *HCS_NxtAvail; /* 1C */
SCB *HCS_Scb; /* 20 */
SCB *HCS_ScbEnd; /* 24 */
SCB *HCS_NxtPend; /* 28 */
SCB *HCS_NxtContig; /* 2C */
SCB *HCS_ActScb; /* 30 */
TCS *HCS_ActTcs; /* 34 */
u8 msg[8]; /* 14 */
struct scsi_ctrl_blk *next_avail; /* 1C */
struct scsi_ctrl_blk *scb; /* 20 */
struct scsi_ctrl_blk *scb_end; /* 24 */ /*UNUSED*/
struct scsi_ctrl_blk *next_pending; /* 28 */
struct scsi_ctrl_blk *next_contig; /* 2C */ /*UNUSED*/
struct scsi_ctrl_blk *active; /* 30 */
struct target_control *active_tc; /* 34 */
SCB *HCS_FirstAvail; /* 38 */
SCB *HCS_LastAvail; /* 3C */
SCB *HCS_FirstPend; /* 40 */
SCB *HCS_LastPend; /* 44 */
SCB *HCS_FirstBusy; /* 48 */
SCB *HCS_LastBusy; /* 4C */
SCB *HCS_FirstDone; /* 50 */
SCB *HCS_LastDone; /* 54 */
UBYTE HCS_MaxTags[16]; /* 58 */
UBYTE HCS_ActTags[16]; /* 68 */
TCS HCS_Tcs[MAX_TARGETS]; /* 78 */
spinlock_t HCS_AvailLock;
spinlock_t HCS_SemaphLock;
struct scsi_ctrl_blk *first_avail; /* 38 */
struct scsi_ctrl_blk *last_avail; /* 3C */
struct scsi_ctrl_blk *first_pending; /* 40 */
struct scsi_ctrl_blk *last_pending; /* 44 */
struct scsi_ctrl_blk *first_busy; /* 48 */
struct scsi_ctrl_blk *last_busy; /* 4C */
struct scsi_ctrl_blk *first_done; /* 50 */
struct scsi_ctrl_blk *last_done; /* 54 */
u8 max_tags[16]; /* 58 */
u8 act_tags[16]; /* 68 */
struct target_control targets[MAX_TARGETS]; /* 78 */
spinlock_t avail_lock;
spinlock_t semaph_lock;
struct pci_dev *pci_dev;
} HCS;
};
/* Bit Definition for HCB_Config */
#define HCC_SCSI_RESET 0x01
@ -599,47 +559,47 @@ typedef struct Ha_Ctrl_Struc {
*******************************************************************/
typedef struct _NVRAM_SCSI { /* SCSI channel configuration */
UCHAR NVM_ChSCSIID; /* 0Ch -> Channel SCSI ID */
UCHAR NVM_ChConfig1; /* 0Dh -> Channel config 1 */
UCHAR NVM_ChConfig2; /* 0Eh -> Channel config 2 */
UCHAR NVM_NumOfTarg; /* 0Fh -> Number of SCSI target */
u8 NVM_ChSCSIID; /* 0Ch -> Channel SCSI ID */
u8 NVM_ChConfig1; /* 0Dh -> Channel config 1 */
u8 NVM_ChConfig2; /* 0Eh -> Channel config 2 */
u8 NVM_NumOfTarg; /* 0Fh -> Number of SCSI target */
/* SCSI target configuration */
UCHAR NVM_Targ0Config; /* 10h -> Target 0 configuration */
UCHAR NVM_Targ1Config; /* 11h -> Target 1 configuration */
UCHAR NVM_Targ2Config; /* 12h -> Target 2 configuration */
UCHAR NVM_Targ3Config; /* 13h -> Target 3 configuration */
UCHAR NVM_Targ4Config; /* 14h -> Target 4 configuration */
UCHAR NVM_Targ5Config; /* 15h -> Target 5 configuration */
UCHAR NVM_Targ6Config; /* 16h -> Target 6 configuration */
UCHAR NVM_Targ7Config; /* 17h -> Target 7 configuration */
UCHAR NVM_Targ8Config; /* 18h -> Target 8 configuration */
UCHAR NVM_Targ9Config; /* 19h -> Target 9 configuration */
UCHAR NVM_TargAConfig; /* 1Ah -> Target A configuration */
UCHAR NVM_TargBConfig; /* 1Bh -> Target B configuration */
UCHAR NVM_TargCConfig; /* 1Ch -> Target C configuration */
UCHAR NVM_TargDConfig; /* 1Dh -> Target D configuration */
UCHAR NVM_TargEConfig; /* 1Eh -> Target E configuration */
UCHAR NVM_TargFConfig; /* 1Fh -> Target F configuration */
u8 NVM_Targ0Config; /* 10h -> Target 0 configuration */
u8 NVM_Targ1Config; /* 11h -> Target 1 configuration */
u8 NVM_Targ2Config; /* 12h -> Target 2 configuration */
u8 NVM_Targ3Config; /* 13h -> Target 3 configuration */
u8 NVM_Targ4Config; /* 14h -> Target 4 configuration */
u8 NVM_Targ5Config; /* 15h -> Target 5 configuration */
u8 NVM_Targ6Config; /* 16h -> Target 6 configuration */
u8 NVM_Targ7Config; /* 17h -> Target 7 configuration */
u8 NVM_Targ8Config; /* 18h -> Target 8 configuration */
u8 NVM_Targ9Config; /* 19h -> Target 9 configuration */
u8 NVM_TargAConfig; /* 1Ah -> Target A configuration */
u8 NVM_TargBConfig; /* 1Bh -> Target B configuration */
u8 NVM_TargCConfig; /* 1Ch -> Target C configuration */
u8 NVM_TargDConfig; /* 1Dh -> Target D configuration */
u8 NVM_TargEConfig; /* 1Eh -> Target E configuration */
u8 NVM_TargFConfig; /* 1Fh -> Target F configuration */
} NVRAM_SCSI;
typedef struct _NVRAM {
/*----------header ---------------*/
USHORT NVM_Signature; /* 0,1: Signature */
UCHAR NVM_Size; /* 2: Size of data structure */
UCHAR NVM_Revision; /* 3: Revision of data structure */
u16 NVM_Signature; /* 0,1: Signature */
u8 NVM_Size; /* 2: Size of data structure */
u8 NVM_Revision; /* 3: Revision of data structure */
/* ----Host Adapter Structure ---- */
UCHAR NVM_ModelByte0; /* 4: Model number (byte 0) */
UCHAR NVM_ModelByte1; /* 5: Model number (byte 1) */
UCHAR NVM_ModelInfo; /* 6: Model information */
UCHAR NVM_NumOfCh; /* 7: Number of SCSI channel */
UCHAR NVM_BIOSConfig1; /* 8: BIOS configuration 1 */
UCHAR NVM_BIOSConfig2; /* 9: BIOS configuration 2 */
UCHAR NVM_HAConfig1; /* A: Hoat adapter configuration 1 */
UCHAR NVM_HAConfig2; /* B: Hoat adapter configuration 2 */
u8 NVM_ModelByte0; /* 4: Model number (byte 0) */
u8 NVM_ModelByte1; /* 5: Model number (byte 1) */
u8 NVM_ModelInfo; /* 6: Model information */
u8 NVM_NumOfCh; /* 7: Number of SCSI channel */
u8 NVM_BIOSConfig1; /* 8: BIOS configuration 1 */
u8 NVM_BIOSConfig2; /* 9: BIOS configuration 2 */
u8 NVM_HAConfig1; /* A: Hoat adapter configuration 1 */
u8 NVM_HAConfig2; /* B: Hoat adapter configuration 2 */
NVRAM_SCSI NVM_SCSIInfo[2];
UCHAR NVM_reserved[10];
u8 NVM_reserved[10];
/* ---------- CheckSum ---------- */
USHORT NVM_CheckSum; /* 0x3E, 0x3F: Checksum of NVRam */
u16 NVM_CheckSum; /* 0x3E, 0x3F: Checksum of NVRam */
} NVRAM, *PNVRAM;
/* Bios Configuration for nvram->BIOSConfig1 */
@ -681,19 +641,6 @@ typedef struct _NVRAM {
#define DISC_ALLOW 0xC0 /* Disconnect is allowed */
#define SCSICMD_RequestSense 0x03
typedef struct _HCSinfo {
ULONG base;
UCHAR vec;
UCHAR bios; /* High byte of BIOS address */
USHORT BaseAndBios; /* high byte: pHcsInfo->bios,low byte:pHcsInfo->base */
} HCSINFO;
#define TUL_RD(x,y) (UCHAR)(inb( (int)((ULONG)(x+y)) ))
#define TUL_RDLONG(x,y) (ULONG)(inl((int)((ULONG)(x+y)) ))
#define TUL_WR( adr,data) outb( (UCHAR)(data), (int)(adr))
#define TUL_WRSHORT(adr,data) outw( (UWORD)(data), (int)(adr))
#define TUL_WRLONG( adr,data) outl( (ULONG)(data), (int)(adr))
#define SCSI_ABORT_SNOOZE 0
#define SCSI_ABORT_SUCCESS 1
#define SCSI_ABORT_PENDING 2