Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/scsi/pci2220i.c b/drivers/scsi/pci2220i.c
new file mode 100644
index 0000000..e395e42
--- /dev/null
+++ b/drivers/scsi/pci2220i.c
@@ -0,0 +1,2915 @@
+/****************************************************************************
+ * Perceptive Solutions, Inc. PCI-2220I device driver for Linux.
+ *
+ * pci2220i.c - Linux Host Driver for PCI-2220I EIDE RAID Adapters
+ *
+ * Copyright (c) 1997-1999 Perceptive Solutions, Inc.
+ * All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that redistributions of source
+ * code retain the above copyright notice and this comment without
+ * modification.
+ *
+ * Technical updates and product information at:
+ * http://www.psidisk.com
+ *
+ * Please send questions, comments, bug reports to:
+ * tech@psidisk.com Technical Support
+ *
+ *
+ * Revisions 1.10 Mar-26-1999
+ * - Updated driver for RAID and hot reconstruct support.
+ *
+ * Revisions 1.11 Mar-26-1999
+ * - Fixed spinlock and PCI configuration.
+ *
+ * Revision 2.00 December-1-1999
+ * - Added code for the PCI-2240I controller
+ * - Added code for ATAPI devices.
+ * - Double buffer for scatter/gather support
+ *
+ * Revision 2.10 March-27-2000
+ * - Added support for dynamic DMA
+ *
+ ****************************************************************************/
+
+#error Convert me to understand page+offset based scatterlists
+
+//#define DEBUG 1
+
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/pci.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/proc_fs.h>
+#include <linux/stat.h>
+#include <linux/blkdev.h>
+#include <linux/timer.h>
+#include <linux/spinlock.h>
+
+#include <asm/dma.h>
+#include <asm/system.h>
+#include <asm/io.h>
+
+#include "scsi.h"
+#include <scsi/scsi_host.h>
+#include "pci2220i.h"
+#include "psi_dale.h"
+
+
+#define PCI2220I_VERSION "2.10"
+#define READ_CMD IDE_CMD_READ_MULTIPLE
+#define WRITE_CMD IDE_CMD_WRITE_MULTIPLE
+#define MAX_BUS_MASTER_BLOCKS SECTORSXFER // This is the maximum we can bus master
+
+#ifdef DEBUG
+#define DEB(x) x
+#define STOP_HERE() {int st;for(st=0;st<100;st++){st=1;}}
+#else
+#define DEB(x)
+#define STOP_HERE()
+#endif
+
+#define MAXADAPTER 4 // Increase this and the sizes of the arrays below, if you need more.
+
+
+typedef struct
+ {
+ UCHAR byte6; // device select register image
+ UCHAR spigot; // spigot number
+ UCHAR spigots[2]; // RAID spigots
+ UCHAR deviceID[2]; // device ID codes
+ USHORT sectors; // number of sectors per track
+ USHORT heads; // number of heads
+ USHORT cylinders; // number of cylinders for this device
+ USHORT spareword; // placeholder
+ ULONG blocks; // number of blocks on device
+ DISK_MIRROR DiskMirror[2]; // RAID status and control
+ ULONG lastsectorlba[2]; // last addressable sector on the drive
+ USHORT raid; // RAID active flag
+ USHORT mirrorRecon;
+ UCHAR reconOn;
+ USHORT reconCount;
+ USHORT reconIsStarting; // indicate hot reconstruct is starting
+ UCHAR cmdDrqInt; // flag for command interrupt
+ UCHAR packet; // command packet size in bytes
+ } OUR_DEVICE, *POUR_DEVICE;
+
+typedef struct
+ {
+ USHORT bigD; // identity is a PCI-2240I if true, otherwise a PCI-2220I
+ USHORT atapi; // this interface is for ATAPI devices only
+ ULONG regDmaDesc; // address of the DMA discriptor register for direction of transfer
+ ULONG regDmaCmdStat; // Byte #1 of DMA command status register
+ ULONG regDmaAddrPci; // 32 bit register for PCI address of DMA
+ ULONG regDmaAddrLoc; // 32 bit register for local bus address of DMA
+ ULONG regDmaCount; // 32 bit register for DMA transfer count
+ ULONG regDmaMode; // 32 bit register for DMA mode control
+ ULONG regRemap; // 32 bit local space remap
+ ULONG regDesc; // 32 bit local region descriptor
+ ULONG regRange; // 32 bit local range
+ ULONG regIrqControl; // 16 bit Interrupt enable/disable and status
+ ULONG regScratchPad; // scratch pad I/O base address
+ ULONG regBase; // Base I/O register for data space
+ ULONG regData; // data register I/O address
+ ULONG regError; // error register I/O address
+ ULONG regSectCount; // sector count register I/O address
+ ULONG regLba0; // least significant byte of LBA
+ ULONG regLba8; // next least significant byte of LBA
+ ULONG regLba16; // next most significan byte of LBA
+ ULONG regLba24; // head and most 4 significant bits of LBA
+ ULONG regStatCmd; // status on read and command on write register
+ ULONG regStatSel; // board status on read and spigot select on write register
+ ULONG regFail; // fail bits control register
+ ULONG regAltStat; // alternate status and drive control register
+ ULONG basePort; // PLX base I/O port
+ USHORT timingMode; // timing mode currently set for adapter
+ USHORT timingPIO; // TRUE if PIO timing is active
+ struct pci_dev *pcidev;
+ ULONG timingAddress; // address to use on adapter for current timing mode
+ ULONG irqOwned; // owned IRQ or zero if shared
+ UCHAR numberOfDrives; // saved number of drives on this controller
+ UCHAR failRegister; // current inverted data in fail register
+ OUR_DEVICE device[BIGD_MAXDRIVES];
+ DISK_MIRROR *raidData[BIGD_MAXDRIVES];
+ ULONG startSector;
+ USHORT sectorCount;
+ ULONG readCount;
+ UCHAR *currentSgBuffer;
+ ULONG currentSgCount;
+ USHORT nextSg;
+ UCHAR cmd;
+ Scsi_Cmnd *SCpnt;
+ POUR_DEVICE pdev; // current device opearating on
+ USHORT devInReconIndex;
+ USHORT expectingIRQ;
+ USHORT reconOn; // Hot reconstruct is to be done.
+ USHORT reconPhase; // Hot reconstruct operation is in progress.
+ ULONG reconSize;
+ USHORT demoFail; // flag for RAID failure demonstration
+ USHORT survivor;
+ USHORT failinprog;
+ struct timer_list reconTimer;
+ struct timer_list timer;
+ UCHAR *kBuffer;
+ dma_addr_t kBufferDma;
+ UCHAR reqSense;
+ UCHAR atapiCdb[16];
+ UCHAR atapiSpecial;
+ } ADAPTER2220I, *PADAPTER2220I;
+
+#define HOSTDATA(host) ((PADAPTER2220I)&host->hostdata)
+
+#define RECON_PHASE_READY 0x01
+#define RECON_PHASE_COPY 0x02
+#define RECON_PHASE_UPDATE 0x03
+#define RECON_PHASE_LAST 0x04
+#define RECON_PHASE_END 0x07
+#define RECON_PHASE_MARKING 0x80
+#define RECON_PHASE_FAILOVER 0xFF
+
+static struct Scsi_Host *PsiHost[MAXADAPTER] = {NULL,}; // One for each adapter
+static int NumAdapters = 0;
+static int Installed = 0;
+static SETUP DaleSetup;
+static DISK_MIRROR DiskMirror[BIGD_MAXDRIVES];
+static ULONG ModeArray[] = {DALE_DATA_MODE2, DALE_DATA_MODE3, DALE_DATA_MODE4, DALE_DATA_MODE5};
+static ULONG ModeArray2[] = {BIGD_DATA_MODE2, BIGD_DATA_MODE3, BIGD_DATA_MODE4, BIGD_DATA_MODE5};
+
+static void ReconTimerExpiry (unsigned long data);
+
+/*******************************************************************************************************
+ * Name: Alarm
+ *
+ * Description: Sound the for the given device
+ *
+ * Parameters: padapter - Pointer adapter data structure.
+ * device - Device number.
+ *
+ * Returns: Nothing.
+ *
+ ******************************************************************************************************/
+static void Alarm (PADAPTER2220I padapter, UCHAR device)
+ {
+ UCHAR zc;
+
+ if ( padapter->bigD )
+ {
+ zc = device | (FAIL_ANY | FAIL_AUDIBLE);
+ if ( padapter->failRegister & FAIL_ANY )
+ zc |= FAIL_MULTIPLE;
+
+ padapter->failRegister = zc;
+ outb_p (~zc, padapter->regFail);
+ }
+ else
+ outb_p (0x3C | (1 << device), padapter->regFail); // sound alarm and set fail light
+ }
+/****************************************************************
+ * Name: MuteAlarm :LOCAL
+ *
+ * Description: Mute the audible alarm.
+ *
+ * Parameters: padapter - Pointer adapter data structure.
+ *
+ * Returns: TRUE if drive does not assert DRQ in time.
+ *
+ ****************************************************************/
+static void MuteAlarm (PADAPTER2220I padapter)
+ {
+ UCHAR old;
+
+ if ( padapter->bigD )
+ {
+ padapter->failRegister &= ~FAIL_AUDIBLE;
+ outb_p (~padapter->failRegister, padapter->regFail);
+ }
+ else
+ {
+ old = (inb_p (padapter->regStatSel) >> 3) | (inb_p (padapter->regStatSel) & 0x83);
+ outb_p (old | 0x40, padapter->regFail);
+ }
+ }
+/****************************************************************
+ * Name: WaitReady :LOCAL
+ *
+ * Description: Wait for device ready.
+ *
+ * Parameters: padapter - Pointer adapter data structure.
+ *
+ * Returns: TRUE if drive does not assert DRQ in time.
+ *
+ ****************************************************************/
+static int WaitReady (PADAPTER2220I padapter)
+ {
+ ULONG z;
+ UCHAR status;
+
+ for ( z = 0; z < (TIMEOUT_READY * 4); z++ )
+ {
+ status = inb_p (padapter->regStatCmd);
+ if ( (status & (IDE_STATUS_DRDY | IDE_STATUS_BUSY)) == IDE_STATUS_DRDY )
+ return 0;
+ udelay (250);
+ }
+ return status;
+ }
+/****************************************************************
+ * Name: WaitReadyReset :LOCAL
+ *
+ * Description: Wait for device ready.
+ *
+ * Parameters: padapter - Pointer adapter data structure.
+ *
+ * Returns: TRUE if drive does not assert DRQ in time.
+ *
+ ****************************************************************/
+static int WaitReadyReset (PADAPTER2220I padapter)
+ {
+ ULONG z;
+ UCHAR status;
+
+ for ( z = 0; z < (125 * 16); z++ ) // wait up to 1/4 second
+ {
+ status = inb_p (padapter->regStatCmd);
+ if ( (status & (IDE_STATUS_DRDY | IDE_STATUS_BUSY)) == IDE_STATUS_DRDY )
+ {
+ DEB (printk ("\nPCI2220I: Reset took %ld mSec to be ready", z / 8));
+ return 0;
+ }
+ udelay (125);
+ }
+ DEB (printk ("\nPCI2220I: Reset took more than 2 Seconds to come ready, Disk Failure"));
+ return status;
+ }
+/****************************************************************
+ * Name: WaitDrq :LOCAL
+ *
+ * Description: Wait for device ready for data transfer.
+ *
+ * Parameters: padapter - Pointer adapter data structure.
+ *
+ * Returns: TRUE if drive does not assert DRQ in time.
+ *
+ ****************************************************************/
+static int WaitDrq (PADAPTER2220I padapter)
+ {
+ ULONG z;
+ UCHAR status;
+
+ for ( z = 0; z < (TIMEOUT_DRQ * 4); z++ )
+ {
+ status = inb_p (padapter->regStatCmd);
+ if ( status & IDE_STATUS_DRQ )
+ return 0;
+ udelay (250);
+ }
+ return status;
+ }
+/****************************************************************
+ * Name: AtapiWaitReady :LOCAL
+ *
+ * Description: Wait for device busy and DRQ to be cleared.
+ *
+ * Parameters: padapter - Pointer adapter data structure.
+ * msec - Number of milliseconds to wait.
+ *
+ * Returns: TRUE if drive does not clear busy in time.
+ *
+ ****************************************************************/
+static int AtapiWaitReady (PADAPTER2220I padapter, int msec)
+ {
+ int z;
+
+ for ( z = 0; z < (msec * 16); z++ )
+ {
+ if ( !(inb_p (padapter->regStatCmd) & (IDE_STATUS_BUSY | IDE_STATUS_DRQ)) )
+ return FALSE;
+ udelay (125);
+ }
+ return TRUE;
+ }
+/****************************************************************
+ * Name: AtapiWaitDrq :LOCAL
+ *
+ * Description: Wait for device ready for data transfer.
+ *
+ * Parameters: padapter - Pointer adapter data structure.
+ * msec - Number of milliseconds to wait.
+ *
+ * Returns: TRUE if drive does not assert DRQ in time.
+ *
+ ****************************************************************/
+static int AtapiWaitDrq (PADAPTER2220I padapter, int msec)
+ {
+ ULONG z;
+
+ for ( z = 0; z < (msec * 16); z++ )
+ {
+ if ( inb_p (padapter->regStatCmd) & IDE_STATUS_DRQ )
+ return 0;
+ udelay (128);
+ }
+ return TRUE;
+ }
+/****************************************************************
+ * Name: HardReset :LOCAL
+ *
+ * Description: Wait for device ready for data transfer.
+ *
+ * Parameters: padapter - Pointer adapter data structure.
+ * pdev - Pointer to device.
+ * spigot - Spigot number.
+ *
+ * Returns: TRUE if drive does not assert DRQ in time.
+ *
+ ****************************************************************/
+static int HardReset (PADAPTER2220I padapter, POUR_DEVICE pdev, UCHAR spigot)
+ {
+ DEB (printk ("\npci2220i:RESET spigot = %X devices = %d, %d", spigot, pdev->deviceID[0], pdev->deviceID[1]));
+ mdelay (100); // just wait 100 mSec to let drives flush
+ SelectSpigot (padapter, spigot | SEL_IRQ_OFF);
+
+ outb_p (0x0E, padapter->regAltStat); // reset the suvivor
+ udelay (100); // wait a little
+ outb_p (0x08, padapter->regAltStat); // clear the reset
+ udelay (100);
+
+ outb_p (0xA0, padapter->regLba24); // select the master drive
+ if ( WaitReadyReset (padapter) )
+ {
+ DEB (printk ("\npci2220i: master not ready after reset"));
+ return TRUE;
+ }
+ outb_p (0xB0, padapter->regLba24); // try the slave drive
+ if ( (inb_p (padapter->regStatCmd) & (IDE_STATUS_DRDY | IDE_STATUS_BUSY)) == IDE_STATUS_DRDY )
+ {
+ DEB (printk ("\nPCI2220I: initializing slave drive on spigot %X", spigot));
+ outb_p (SECTORSXFER, padapter->regSectCount);
+ WriteCommand (padapter, IDE_CMD_SET_MULTIPLE);
+ if ( WaitReady (padapter) )
+ {
+ DEB (printk ("\npci2220i: slave not ready after set multiple"));
+ return TRUE;
+ }
+ }
+
+ outb_p (0xA0, padapter->regLba24); // select the drive
+ outb_p (SECTORSXFER, padapter->regSectCount);
+ WriteCommand (padapter, IDE_CMD_SET_MULTIPLE);
+ if ( WaitReady (padapter) )
+ {
+ DEB (printk ("\npci2220i: master not ready after set multiple"));
+ return TRUE;
+ }
+ return FALSE;
+ }
+/****************************************************************
+ * Name: AtapiReset :LOCAL
+ *
+ * Description: Wait for device ready for data transfer.
+ *
+ * Parameters: padapter - Pointer adapter data structure.
+ * pdev - Pointer to device.
+ *
+ * Returns: TRUE if drive does not come ready.
+ *
+ ****************************************************************/
+static int AtapiReset (PADAPTER2220I padapter, POUR_DEVICE pdev)
+ {
+ SelectSpigot (padapter, pdev->spigot);
+ AtapiDevice (padapter, pdev->byte6);
+ AtapiCountLo (padapter, 0);
+ AtapiCountHi (padapter, 0);
+ WriteCommand (padapter, IDE_COMMAND_ATAPI_RESET);
+ udelay (125);
+ if ( AtapiWaitReady (padapter, 1000) )
+ return TRUE;
+ if ( inb_p (padapter->regStatCmd) || (inb_p (padapter->regLba8) != 0x14) || (inb_p (padapter->regLba16) != 0xEB) )
+ return TRUE;
+ return FALSE;
+ }
+/****************************************************************
+ * Name: WalkScatGath :LOCAL
+ *
+ * Description: Transfer data to/from scatter/gather buffers.
+ *
+ * Parameters: padapter - Pointer adapter data structure.
+ * datain - TRUE if data read.
+ * length - Number of bytes to transfer.
+ *
+ * Returns: Nothing.
+ *
+ ****************************************************************/
+static void WalkScatGath (PADAPTER2220I padapter, UCHAR datain, ULONG length)
+ {
+ ULONG count;
+ UCHAR *buffer = padapter->kBuffer;
+
+ while ( length )
+ {
+ count = ( length > padapter->currentSgCount ) ? padapter->currentSgCount : length;
+
+ if ( datain )
+ memcpy (padapter->currentSgBuffer, buffer, count);
+ else
+ memcpy (buffer, padapter->currentSgBuffer, count);
+
+ padapter->currentSgCount -= count;
+ if ( !padapter->currentSgCount )
+ {
+ if ( padapter->nextSg < padapter->SCpnt->use_sg )
+ {
+ padapter->currentSgBuffer = ((struct scatterlist *)padapter->SCpnt->request_buffer)[padapter->nextSg].address;
+ padapter->currentSgCount = ((struct scatterlist *)padapter->SCpnt->request_buffer)[padapter->nextSg].length;
+ padapter->nextSg++;
+ }
+ }
+ else
+ padapter->currentSgBuffer += count;
+
+ length -= count;
+ buffer += count;
+ }
+ }
+/****************************************************************
+ * Name: BusMaster :LOCAL
+ *
+ * Description: Do a bus master I/O.
+ *
+ * Parameters: padapter - Pointer adapter data structure.
+ * datain - TRUE if data read.
+ * irq - TRUE if bus master interrupt expected.
+ *
+ * Returns: Nothing.
+ *
+ ****************************************************************/
+static void BusMaster (PADAPTER2220I padapter, UCHAR datain, UCHAR irq)
+ {
+ ULONG zl;
+
+ zl = ( padapter->sectorCount > MAX_BUS_MASTER_BLOCKS ) ? MAX_BUS_MASTER_BLOCKS : padapter->sectorCount;
+ padapter->sectorCount -= zl;
+ zl *= (ULONG)BYTES_PER_SECTOR;
+
+ if ( datain )
+ {
+ padapter->readCount = zl;
+ outb_p (8, padapter->regDmaDesc); // read operation
+ if ( padapter->bigD )
+ {
+ if ( irq && !padapter->sectorCount )
+ outb_p (0x0C, padapter->regDmaMode); // interrupt on
+ else
+ outb_p (0x08, padapter->regDmaMode); // no interrupt
+ }
+ else
+ {
+ if ( irq && !padapter->sectorCount )
+ outb_p (0x05, padapter->regDmaMode); // interrupt on
+ else
+ outb_p (0x01, padapter->regDmaMode); // no interrupt
+ }
+ }
+ else
+ {
+ outb_p (0x00, padapter->regDmaDesc); // write operation
+ if ( padapter->bigD )
+ outb_p (0x08, padapter->regDmaMode); // no interrupt
+ else
+ outb_p (0x01, padapter->regDmaMode); // no interrupt
+ WalkScatGath (padapter, FALSE, zl);
+ }
+
+ outl (padapter->timingAddress, padapter->regDmaAddrLoc);
+ outl (padapter->kBufferDma, padapter->regDmaAddrPci);
+ outl (zl, padapter->regDmaCount);
+ outb_p (0x03, padapter->regDmaCmdStat); // kick the DMA engine in gear
+ }
+/****************************************************************
+ * Name: AtapiBusMaster :LOCAL
+ *
+ * Description: Do a bus master I/O.
+ *
+ * Parameters: padapter - Pointer adapter data structure.
+ * datain - TRUE if data read.
+ * length - Number of bytes to transfer.
+ *
+ * Returns: Nothing.
+ *
+ ****************************************************************/
+static void AtapiBusMaster (PADAPTER2220I padapter, UCHAR datain, ULONG length)
+ {
+ outl (padapter->timingAddress, padapter->regDmaAddrLoc);
+ outl (padapter->kBufferDma, padapter->regDmaAddrPci);
+ outl (length, padapter->regDmaCount);
+ if ( datain )
+ {
+ if ( padapter->readCount )
+ WalkScatGath (padapter, TRUE, padapter->readCount);
+ outb_p (0x08, padapter->regDmaDesc); // read operation
+ outb_p (0x08, padapter->regDmaMode); // no interrupt
+ padapter->readCount = length;
+ }
+ else
+ {
+ outb_p (0x00, padapter->regDmaDesc); // write operation
+ outb_p (0x08, padapter->regDmaMode); // no interrupt
+ if ( !padapter->atapiSpecial )
+ WalkScatGath (padapter, FALSE, length);
+ }
+ outb_p (0x03, padapter->regDmaCmdStat); // kick the DMA engine in gear
+ }
+/****************************************************************
+ * Name: WriteData :LOCAL
+ *
+ * Description: Write data to device.
+ *
+ * Parameters: padapter - Pointer adapter data structure.
+ *
+ * Returns: TRUE if drive does not assert DRQ in time.
+ *
+ ****************************************************************/
+static int WriteData (PADAPTER2220I padapter)
+ {
+ ULONG zl;
+
+ if ( !WaitDrq (padapter) )
+ {
+ if ( padapter->timingPIO )
+ {
+ zl = (padapter->sectorCount > MAX_BUS_MASTER_BLOCKS) ? MAX_BUS_MASTER_BLOCKS : padapter->sectorCount;
+ WalkScatGath (padapter, FALSE, zl * BYTES_PER_SECTOR);
+ outsw (padapter->regData, padapter->kBuffer, zl * (BYTES_PER_SECTOR / 2));
+ padapter->sectorCount -= zl;
+ }
+ else
+ BusMaster (padapter, 0, 0);
+ return 0;
+ }
+ padapter->cmd = 0; // null out the command byte
+ return 1;
+ }
+/****************************************************************
+ * Name: WriteDataBoth :LOCAL
+ *
+ * Description: Write data to device.
+ *
+ * Parameters: padapter - Pointer to adapter structure.
+ * pdev - Pointer to device structure
+ *
+ * Returns: Index + 1 of drive not failed or zero for OK.
+ *
+ ****************************************************************/
+static int WriteDataBoth (PADAPTER2220I padapter, POUR_DEVICE pdev)
+ {
+ ULONG zl;
+ UCHAR status0, status1;
+
+ SelectSpigot (padapter, pdev->spigots[0]);
+ status0 = WaitDrq (padapter);
+ if ( !status0 )
+ {
+ SelectSpigot (padapter, pdev->spigots[1]);
+ status1 = WaitDrq (padapter);
+ if ( !status1 )
+ {
+ SelectSpigot (padapter, pdev->spigots[0] | pdev->spigots[1] | padapter->bigD);
+ if ( padapter->timingPIO )
+ {
+ zl = (padapter->sectorCount > MAX_BUS_MASTER_BLOCKS) ? MAX_BUS_MASTER_BLOCKS : padapter->sectorCount;
+ WalkScatGath (padapter, FALSE, zl * BYTES_PER_SECTOR);
+ outsw (padapter->regData, padapter->kBuffer, zl * (BYTES_PER_SECTOR / 2));
+ padapter->sectorCount -= zl;
+ }
+ else
+ BusMaster (padapter, 0, 0);
+ return 0;
+ }
+ }
+ padapter->cmd = 0; // null out the command byte
+ if ( status0 )
+ return 2;
+ return 1;
+ }
+/****************************************************************
+ * Name: IdeCmd :LOCAL
+ *
+ * Description: Process an IDE command.
+ *
+ * Parameters: padapter - Pointer adapter data structure.
+ * pdev - Pointer to device.
+ *
+ * Returns: Zero if no error or status register contents on error.
+ *
+ ****************************************************************/
+static UCHAR IdeCmd (PADAPTER2220I padapter, POUR_DEVICE pdev)
+ {
+ UCHAR status;
+
+ SelectSpigot (padapter, pdev->spigot | padapter->bigD); // select the spigot
+ outb_p (pdev->byte6 | ((UCHAR *)(&padapter->startSector))[3], padapter->regLba24); // select the drive
+ status = WaitReady (padapter);
+ if ( !status )
+ {
+ outb_p (padapter->sectorCount, padapter->regSectCount);
+ outb_p (((UCHAR *)(&padapter->startSector))[0], padapter->regLba0);
+ outb_p (((UCHAR *)(&padapter->startSector))[1], padapter->regLba8);
+ outb_p (((UCHAR *)(&padapter->startSector))[2], padapter->regLba16);
+ padapter->expectingIRQ = TRUE;
+ WriteCommand (padapter, padapter->cmd);
+ return 0;
+ }
+
+ padapter->cmd = 0; // null out the command byte
+ return status;
+ }
+/****************************************************************
+ * Name: IdeCmdBoth :LOCAL
+ *
+ * Description: Process an IDE command to both drivers.
+ *
+ * Parameters: padapter - Pointer adapter data structure.
+ * pdev - Pointer to device structure
+ *
+ * Returns: Index + 1 of drive not failed or zero for OK.
+ *
+ ****************************************************************/
+static UCHAR IdeCmdBoth (PADAPTER2220I padapter, POUR_DEVICE pdev)
+ {
+ UCHAR status0;
+ UCHAR status1;
+
+ SelectSpigot (padapter, pdev->spigots[0] | pdev->spigots[1]); // select the spigots
+ outb_p (padapter->pdev->byte6 | ((UCHAR *)(&padapter->startSector))[3], padapter->regLba24);// select the drive
+ SelectSpigot (padapter, pdev->spigots[0]);
+ status0 = WaitReady (padapter);
+ if ( !status0 )
+ {
+ SelectSpigot (padapter, pdev->spigots[1]);
+ status1 = WaitReady (padapter);
+ if ( !status1 )
+ {
+ SelectSpigot (padapter, pdev->spigots[0] | pdev->spigots[1] | padapter->bigD);
+ outb_p (padapter->sectorCount, padapter->regSectCount);
+ outb_p (((UCHAR *)(&padapter->startSector))[0], padapter->regLba0);
+ outb_p (((UCHAR *)(&padapter->startSector))[1], padapter->regLba8);
+ outb_p (((UCHAR *)(&padapter->startSector))[2], padapter->regLba16);
+ padapter->expectingIRQ = TRUE;
+ WriteCommand (padapter, padapter->cmd);
+ return 0;
+ }
+ }
+ padapter->cmd = 0; // null out the command byte
+ if ( status0 )
+ return 2;
+ return 1;
+ }
+/****************************************************************
+ * Name: OpDone :LOCAL
+ *
+ * Description: Complete an operatoin done sequence.
+ *
+ * Parameters: padapter - Pointer to host data block.
+ * spigot - Spigot select code.
+ * device - Device byte code.
+ *
+ * Returns: Nothing.
+ *
+ ****************************************************************/
+static void OpDone (PADAPTER2220I padapter, ULONG result)
+ {
+ Scsi_Cmnd *SCpnt = padapter->SCpnt;
+
+ if ( padapter->reconPhase )
+ {
+ padapter->reconPhase = 0;
+ if ( padapter->SCpnt )
+ {
+ Pci2220i_QueueCommand (SCpnt, SCpnt->scsi_done);
+ }
+ else
+ {
+ if ( padapter->reconOn )
+ {
+ ReconTimerExpiry ((unsigned long)padapter);
+ }
+ }
+ }
+ else
+ {
+ padapter->cmd = 0;
+ padapter->SCpnt = NULL;
+ padapter->pdev = NULL;
+ SCpnt->result = result;
+ SCpnt->scsi_done (SCpnt);
+ if ( padapter->reconOn && !padapter->reconTimer.data )
+ {
+ padapter->reconTimer.expires = jiffies + (HZ / 4); // start in 1/4 second
+ padapter->reconTimer.data = (unsigned long)padapter;
+ add_timer (&padapter->reconTimer);
+ }
+ }
+ }
+/****************************************************************
+ * Name: InlineIdentify :LOCAL
+ *
+ * Description: Do an intline inquiry on a drive.
+ *
+ * Parameters: padapter - Pointer to host data block.
+ * spigot - Spigot select code.
+ * device - Device byte code.
+ *
+ * Returns: Last addressable sector or zero if none.
+ *
+ ****************************************************************/
+static ULONG InlineIdentify (PADAPTER2220I padapter, UCHAR spigot, UCHAR device)
+ {
+ PIDENTIFY_DATA pid = (PIDENTIFY_DATA)padapter->kBuffer;
+
+ SelectSpigot (padapter, spigot | SEL_IRQ_OFF); // select the spigot
+ outb_p ((device << 4) | 0xA0, padapter->regLba24); // select the drive
+ if ( WaitReady (padapter) )
+ return 0;
+ WriteCommand (padapter, IDE_COMMAND_IDENTIFY);
+ if ( WaitDrq (padapter) )
+ return 0;
+ insw (padapter->regData, padapter->kBuffer, sizeof (IDENTIFY_DATA) >> 1);
+ return (pid->LBATotalSectors - 1);
+ }
+/****************************************************************
+ * Name: AtapiIdentify :LOCAL
+ *
+ * Description: Do an intline inquiry on a drive.
+ *
+ * Parameters: padapter - Pointer to host data block.
+ * pdev - Pointer to device table.
+ *
+ * Returns: TRUE on error.
+ *
+ ****************************************************************/
+static ULONG AtapiIdentify (PADAPTER2220I padapter, POUR_DEVICE pdev)
+ {
+ ATAPI_GENERAL_0 ag0;
+ USHORT zs;
+ int z;
+
+ AtapiDevice (padapter, pdev->byte6);
+ WriteCommand (padapter, IDE_COMMAND_ATAPI_IDENTIFY);
+ if ( AtapiWaitDrq (padapter, 3000) )
+ return TRUE;
+
+ *(USHORT *)&ag0 = inw_p (padapter->regData);
+ for ( z = 0; z < 255; z++ )
+ zs = inw_p (padapter->regData);
+
+ if ( ag0.ProtocolType == 2 )
+ {
+ if ( ag0.CmdDrqType == 1 )
+ pdev->cmdDrqInt = TRUE;
+ switch ( ag0.CmdPacketSize )
+ {
+ case 0:
+ pdev->packet = 6;
+ break;
+ case 1:
+ pdev->packet = 8;
+ break;
+ default:
+ pdev->packet = 6;
+ break;
+ }
+ return FALSE;
+ }
+ return TRUE;
+ }
+/****************************************************************
+ * Name: Atapi2Scsi
+ *
+ * Description: Convert ATAPI data to SCSI data.
+ *
+ * Parameters: padapter - Pointer adapter data structure.
+ * SCpnt - Pointer to SCSI command structure.
+ *
+ * Returns: Nothing.
+ *
+ ****************************************************************/
+void Atapi2Scsi (PADAPTER2220I padapter, Scsi_Cmnd *SCpnt)
+ {
+ UCHAR *buff = padapter->currentSgBuffer;
+
+ switch ( SCpnt->cmnd[0] )
+ {
+ case SCSIOP_MODE_SENSE:
+ buff[0] = padapter->kBuffer[1];
+ buff[1] = padapter->kBuffer[2];
+ buff[2] = padapter->kBuffer[3];
+ buff[3] = padapter->kBuffer[7];
+ memcpy (&buff[4], &padapter->kBuffer[8], padapter->atapiCdb[8] - 8);
+ break;
+ case SCSIOP_INQUIRY:
+ padapter->kBuffer[2] = 2;
+ memcpy (buff, padapter->kBuffer, padapter->currentSgCount);
+ break;
+ default:
+ if ( padapter->readCount )
+ WalkScatGath (padapter, TRUE, padapter->readCount);
+ break;
+ }
+ }
+/****************************************************************
+ * Name: Scsi2Atapi
+ *
+ * Description: Convert SCSI packet command to Atapi packet command.
+ *
+ * Parameters: padapter - Pointer adapter data structure.
+ * SCpnt - Pointer to SCSI command structure.
+ *
+ * Returns: Nothing.
+ *
+ ****************************************************************/
+static void Scsi2Atapi (PADAPTER2220I padapter, Scsi_Cmnd *SCpnt)
+ {
+ UCHAR *cdb = SCpnt->cmnd;
+ UCHAR *buff = padapter->currentSgBuffer;
+
+ switch (cdb[0])
+ {
+ case SCSIOP_READ6:
+ padapter->atapiCdb[0] = SCSIOP_READ;
+ padapter->atapiCdb[1] = cdb[1] & 0xE0;
+ padapter->atapiCdb[3] = cdb[1] & 0x1F;
+ padapter->atapiCdb[4] = cdb[2];
+ padapter->atapiCdb[5] = cdb[3];
+ padapter->atapiCdb[8] = cdb[4];
+ padapter->atapiCdb[9] = cdb[5];
+ break;
+ case SCSIOP_WRITE6:
+ padapter->atapiCdb[0] = SCSIOP_WRITE;
+ padapter->atapiCdb[1] = cdb[1] & 0xE0;
+ padapter->atapiCdb[3] = cdb[1] & 0x1F;
+ padapter->atapiCdb[4] = cdb[2];
+ padapter->atapiCdb[5] = cdb[3];
+ padapter->atapiCdb[8] = cdb[4];
+ padapter->atapiCdb[9] = cdb[5];
+ break;
+ case SCSIOP_MODE_SENSE:
+ padapter->atapiCdb[0] = SCSIOP_MODE_SENSE10;
+ padapter->atapiCdb[2] = cdb[2];
+ padapter->atapiCdb[8] = cdb[4] + 4;
+ break;
+
+ case SCSIOP_MODE_SELECT:
+ padapter->atapiSpecial = TRUE;
+ padapter->atapiCdb[0] = SCSIOP_MODE_SELECT10;
+ padapter->atapiCdb[1] = cdb[1] | 0x10;
+ memcpy (padapter->kBuffer, buff, 4);
+ padapter->kBuffer[4] = padapter->kBuffer[5] = 0;
+ padapter->kBuffer[6] = padapter->kBuffer[7] = 0;
+ memcpy (&padapter->kBuffer[8], &buff[4], cdb[4] - 4);
+ padapter->atapiCdb[8] = cdb[4] + 4;
+ break;
+ }
+ }
+/****************************************************************
+ * Name: AtapiSendCdb
+ *
+ * Description: Send the CDB packet to the device.
+ *
+ * Parameters: padapter - Pointer adapter data structure.
+ * pdev - Pointer to device.
+ * cdb - Pointer to 16 byte SCSI cdb.
+ *
+ * Returns: Nothing.
+ *
+ ****************************************************************/
+static void AtapiSendCdb (PADAPTER2220I padapter, POUR_DEVICE pdev, CHAR *cdb)
+ {
+ DEB (printk ("\nPCI2242I: CDB: %X %X %X %X %X %X %X %X %X %X %X %X", cdb[0], cdb[1], cdb[2], cdb[3], cdb[4], cdb[5], cdb[6], cdb[7], cdb[8], cdb[9], cdb[10], cdb[11]));
+ outsw (padapter->regData, cdb, pdev->packet);
+ }
+/****************************************************************
+ * Name: AtapiRequestSense
+ *
+ * Description: Send the CDB packet to the device.
+ *
+ * Parameters: padapter - Pointer adapter data structure.
+ * pdev - Pointer to device.
+ * SCpnt - Pointer to SCSI command structure.
+ * pass - If true then this is the second pass to send cdb.
+ *
+ * Returns: TRUE on error.
+ *
+ ****************************************************************/
+static int AtapiRequestSense (PADAPTER2220I padapter, POUR_DEVICE pdev, Scsi_Cmnd *SCpnt, UCHAR pass)
+ {
+ UCHAR cdb[16] = {SCSIOP_REQUEST_SENSE,0,0,0,16,0,0,0,0,0,0,0,0,0,0,0};
+
+ DEB (printk ("\nPCI2242I: AUTO REQUEST SENSE"));
+ cdb[4] = (UCHAR)(sizeof (SCpnt->sense_buffer));
+ if ( !pass )
+ {
+ padapter->reqSense = TRUE;
+ AtapiCountLo (padapter, cdb[4]);
+ AtapiCountHi (padapter, 0);
+ outb_p (0, padapter->regError);
+ WriteCommand (padapter, IDE_COMMAND_ATAPI_PACKET);
+ if ( pdev->cmdDrqInt )
+ return FALSE;
+
+ if ( AtapiWaitDrq (padapter, 500) )
+ return TRUE;
+ }
+ AtapiSendCdb (padapter, pdev, cdb);
+ return FALSE;
+ }
+/****************************************************************
+ * Name: InlineReadSignature :LOCAL
+ *
+ * Description: Do an inline read RAID sigature.
+ *
+ * Parameters: padapter - Pointer adapter data structure.
+ * pdev - Pointer to device.
+ * index - index of data to read.
+ *
+ * Returns: Zero if no error or status register contents on error.
+ *
+ ****************************************************************/
+static UCHAR InlineReadSignature (PADAPTER2220I padapter, POUR_DEVICE pdev, int index)
+ {
+ UCHAR status;
+ ULONG zl = pdev->lastsectorlba[index];
+
+ SelectSpigot (padapter, pdev->spigots[index] | SEL_IRQ_OFF); // select the spigot without interrupts
+ outb_p (pdev->byte6 | ((UCHAR *)&zl)[3], padapter->regLba24);
+ status = WaitReady (padapter);
+ if ( !status )
+ {
+ outb_p (((UCHAR *)&zl)[2], padapter->regLba16);
+ outb_p (((UCHAR *)&zl)[1], padapter->regLba8);
+ outb_p (((UCHAR *)&zl)[0], padapter->regLba0);
+ outb_p (1, padapter->regSectCount);
+ WriteCommand (padapter, IDE_COMMAND_READ);
+ status = WaitDrq (padapter);
+ if ( !status )
+ {
+ insw (padapter->regData, padapter->kBuffer, BYTES_PER_SECTOR / 2);
+ ((ULONG *)(&pdev->DiskMirror[index]))[0] = ((ULONG *)(&padapter->kBuffer[DISK_MIRROR_POSITION]))[0];
+ ((ULONG *)(&pdev->DiskMirror[index]))[1] = ((ULONG *)(&padapter->kBuffer[DISK_MIRROR_POSITION]))[1];
+ // some drives assert DRQ before IRQ so let's make sure we clear the IRQ
+ WaitReady (padapter);
+ return 0;
+ }
+ }
+ return status;
+ }
+/****************************************************************
+ * Name: DecodeError :LOCAL
+ *
+ * Description: Decode and process device errors.
+ *
+ * Parameters: padapter - Pointer to adapter data.
+ * status - Status register code.
+ *
+ * Returns: The driver status code.
+ *
+ ****************************************************************/
+static ULONG DecodeError (PADAPTER2220I padapter, UCHAR status)
+ {
+ UCHAR error;
+
+ padapter->expectingIRQ = 0;
+ if ( status & IDE_STATUS_WRITE_FAULT )
+ {
+ return DID_PARITY << 16;
+ }
+ if ( status & IDE_STATUS_BUSY )
+ return DID_BUS_BUSY << 16;
+
+ error = inb_p (padapter->regError);
+ DEB(printk ("\npci2220i error register: %x", error));
+ switch ( error )
+ {
+ case IDE_ERROR_AMNF:
+ case IDE_ERROR_TKONF:
+ case IDE_ERROR_ABRT:
+ case IDE_ERROR_IDFN:
+ case IDE_ERROR_UNC:
+ case IDE_ERROR_BBK:
+ default:
+ return DID_ERROR << 16;
+ }
+ return DID_ERROR << 16;
+ }
+/****************************************************************
+ * Name: StartTimer :LOCAL
+ *
+ * Description: Start the timer.
+ *
+ * Parameters: ipadapter - Pointer adapter data structure.
+ *
+ * Returns: Nothing.
+ *
+ ****************************************************************/
+static void StartTimer (PADAPTER2220I padapter)
+ {
+ padapter->timer.expires = jiffies + TIMEOUT_DATA;
+ add_timer (&padapter->timer);
+ }
+/****************************************************************
+ * Name: WriteSignature :LOCAL
+ *
+ * Description: Start the timer.
+ *
+ * Parameters: padapter - Pointer adapter data structure.
+ * pdev - Pointer to our device.
+ * spigot - Selected spigot.
+ * index - index of mirror signature on device.
+ *
+ * Returns: TRUE on any error.
+ *
+ ****************************************************************/
+static int WriteSignature (PADAPTER2220I padapter, POUR_DEVICE pdev, UCHAR spigot, int index)
+ {
+ ULONG zl;
+
+ SelectSpigot (padapter, spigot);
+ zl = pdev->lastsectorlba[index];
+ outb_p (pdev->byte6 | ((UCHAR *)&zl)[3], padapter->regLba24);
+ outb_p (((UCHAR *)&zl)[2], padapter->regLba16);
+ outb_p (((UCHAR *)&zl)[1], padapter->regLba8);
+ outb_p (((UCHAR *)&zl)[0], padapter->regLba0);
+ outb_p (1, padapter->regSectCount);
+
+ WriteCommand (padapter, IDE_COMMAND_WRITE);
+ if ( WaitDrq (padapter) )
+ return TRUE;
+ StartTimer (padapter);
+ padapter->expectingIRQ = TRUE;
+
+ ((ULONG *)(&padapter->kBuffer[DISK_MIRROR_POSITION]))[0] = ((ULONG *)(&pdev->DiskMirror[index]))[0];
+ ((ULONG *)(&padapter->kBuffer[DISK_MIRROR_POSITION]))[1] = ((ULONG *)(&pdev->DiskMirror[index]))[1];
+ outsw (padapter->regData, padapter->kBuffer, BYTES_PER_SECTOR / 2);
+ return FALSE;
+ }
+/*******************************************************************************************************
+ * Name: InitFailover
+ *
+ * Description: This is the beginning of the failover routine
+ *
+ * Parameters: SCpnt - Pointer to SCSI command structure.
+ * padapter - Pointer adapter data structure.
+ * pdev - Pointer to our device.
+ *
+ * Returns: TRUE on error.
+ *
+ ******************************************************************************************************/
+static int InitFailover (PADAPTER2220I padapter, POUR_DEVICE pdev)
+ {
+ UCHAR spigot;
+
+ DEB (printk ("\npci2220i: Initialize failover process - survivor = %d", pdev->deviceID[padapter->survivor]));
+ pdev->raid = FALSE; //initializes system for non raid mode
+ pdev->reconOn = FALSE;
+ spigot = pdev->spigots[padapter->survivor];
+
+ if ( pdev->DiskMirror[padapter->survivor].status & UCBF_REBUILD )
+ {
+ DEB (printk ("\n failed, is survivor"));
+ return (TRUE);
+ }
+
+ if ( HardReset (padapter, pdev, spigot) )
+ {
+ DEB (printk ("\n failed, reset"));
+ return TRUE;
+ }
+
+ Alarm (padapter, pdev->deviceID[padapter->survivor ^ 1]);
+ pdev->DiskMirror[padapter->survivor].status = UCBF_MIRRORED | UCBF_SURVIVOR; //clear present status
+
+ if ( WriteSignature (padapter, pdev, spigot, padapter->survivor) )
+ {
+ DEB (printk ("\n failed, write signature"));
+ return TRUE;
+ }
+ padapter->failinprog = TRUE;
+ return FALSE;
+ }
+/****************************************************************
+ * Name: TimerExpiry :LOCAL
+ *
+ * Description: Timer expiry routine.
+ *
+ * Parameters: data - Pointer adapter data structure.
+ *
+ * Returns: Nothing.
+ *
+ ****************************************************************/
+static void TimerExpiry (unsigned long data)
+ {
+ PADAPTER2220I padapter = (PADAPTER2220I)data;
+ struct Scsi_Host *host = padapter->SCpnt->device->host;
+ POUR_DEVICE pdev = padapter->pdev;
+ UCHAR status = IDE_STATUS_BUSY;
+ UCHAR temp, temp1;
+ unsigned long flags;
+
+ /*
+ * Disable interrupts, if they aren't already disabled and acquire
+ * the I/O spinlock.
+ */
+ spin_lock_irqsave (host->host_lock, flags);
+ DEB (printk ("\nPCI2220I: Timeout expired "));
+
+ if ( padapter->failinprog )
+ {
+ DEB (printk ("in failover process"));
+ OpDone (padapter, DecodeError (padapter, inb_p (padapter->regStatCmd)));
+ goto timerExpiryDone;
+ }
+
+ while ( padapter->reconPhase )
+ {
+ DEB (printk ("in recon phase %X", padapter->reconPhase));
+ switch ( padapter->reconPhase )
+ {
+ case RECON_PHASE_MARKING:
+ case RECON_PHASE_LAST:
+ padapter->survivor = ( pdev->spigot == pdev->spigots[0] ) ? 1 : 0;
+ DEB (printk ("\npci2220i: FAILURE 1"));
+ if ( InitFailover (padapter, pdev) )
+ OpDone (padapter, DID_ERROR << 16);
+ goto timerExpiryDone;
+
+ case RECON_PHASE_READY:
+ OpDone (padapter, DID_ERROR << 16);
+ goto timerExpiryDone;
+
+ case RECON_PHASE_COPY:
+ padapter->survivor = ( pdev->spigot == pdev->spigots[0] ) ? 0 : 1;
+ DEB (printk ("\npci2220i: FAILURE 2"));
+ DEB (printk ("\n spig/stat = %X", inb_p (padapter->regStatSel));
+ if ( InitFailover (padapter, pdev) )
+ OpDone (padapter, DID_ERROR << 16);
+ goto timerExpiryDone;
+
+ case RECON_PHASE_UPDATE:
+ padapter->survivor = ( pdev->spigot == pdev->spigots[0] ) ? 0 : 1;
+ DEB (printk ("\npci2220i: FAILURE 3")));
+ if ( InitFailover (padapter, pdev) )
+ OpDone (padapter, DID_ERROR << 16);
+ goto timerExpiryDone;
+
+ case RECON_PHASE_END:
+ padapter->survivor = ( pdev->spigot == pdev->spigots[0] ) ? 0 : 1;
+ DEB (printk ("\npci2220i: FAILURE 4"));
+ if ( InitFailover (padapter, pdev) )
+ OpDone (padapter, DID_ERROR << 16);
+ goto timerExpiryDone;
+
+ default:
+ goto timerExpiryDone;
+ }
+ }
+
+ while ( padapter->cmd )
+ {
+ outb_p (0x08, padapter->regDmaCmdStat); // cancel interrupt from DMA engine
+ if ( pdev->raid )
+ {
+ if ( padapter->cmd == WRITE_CMD )
+ {
+ DEB (printk ("in RAID write operation"));
+ temp = ( pdev->spigot & (SEL_1 | SEL_2) ) ? SEL_1 : SEL_3;
+ if ( inb_p (padapter->regStatSel) & temp )
+ {
+ DEB (printk ("\npci2220i: Determined A OK"));
+ SelectSpigot (padapter, temp | SEL_IRQ_OFF); // Masking the interrupt during spigot select
+ temp = inb_p (padapter->regStatCmd);
+ }
+ else
+ temp = IDE_STATUS_BUSY;
+
+ temp1 = ( pdev->spigot & (SEL_1 | SEL_2) ) ? SEL_2 : SEL_4;
+ if ( inb (padapter->regStatSel) & temp1 )
+ {
+ DEB (printk ("\npci2220i: Determined B OK"));
+ SelectSpigot (padapter, temp1 | SEL_IRQ_OFF); // Masking the interrupt during spigot select
+ temp1 = inb_p (padapter->regStatCmd);
+ }
+ else
+ temp1 = IDE_STATUS_BUSY;
+
+ if ( (temp & IDE_STATUS_BUSY) || (temp1 & IDE_STATUS_BUSY) )
+ {
+ DEB (printk ("\npci2220i: Status A: %X B: %X", temp & 0xFF, temp1 & 0xFF));
+ if ( (temp & IDE_STATUS_BUSY) && (temp1 & IDE_STATUS_BUSY) )
+ {
+ status = temp;
+ break;
+ }
+ else
+ {
+ if ( temp & IDE_STATUS_BUSY )
+ padapter->survivor = 1;
+ else
+ padapter->survivor = 0;
+ if ( InitFailover (padapter, pdev) )
+ {
+ status = inb_p (padapter->regStatCmd);
+ break;
+ }
+ goto timerExpiryDone;
+ }
+ }
+ }
+ else
+ {
+ DEB (printk ("in RAID read operation"));
+ padapter->survivor = ( pdev->spigot == pdev->spigots[0] ) ? 0 : 1;
+ DEB (printk ("\npci2220i: FAILURE 6"));
+ if ( InitFailover (padapter, pdev) )
+ {
+ status = inb_p (padapter->regStatCmd);
+ break;
+ }
+ goto timerExpiryDone;
+ }
+ }
+ else
+ {
+ DEB (printk ("in I/O operation"));
+ status = inb_p (padapter->regStatCmd);
+ }
+ break;
+ }
+
+ OpDone (padapter, DecodeError (padapter, status));
+
+timerExpiryDone:;
+ /*
+ * Release the I/O spinlock and restore the original flags
+ * which will enable interrupts if and only if they were
+ * enabled on entry.
+ */
+ spin_unlock_irqrestore (host->host_lock, flags);
+ }
+/****************************************************************
+ * Name: SetReconstruct :LOCAL
+ *
+ * Description: Set the reconstruct up.
+ *
+ * Parameters: pdev - Pointer to device structure.
+ * index - Mirror index number.
+ *
+ * Returns: Number of sectors on new disk required.
+ *
+ ****************************************************************/
+static LONG SetReconstruct (POUR_DEVICE pdev, int index)
+ {
+ pdev->DiskMirror[index].status = UCBF_MIRRORED; // setup the flags
+ pdev->DiskMirror[index ^ 1].status = UCBF_MIRRORED | UCBF_REBUILD;
+ pdev->DiskMirror[index ^ 1].reconstructPoint = 0; // start the reconstruct
+ pdev->reconCount = 1990; // mark target drive early
+ return pdev->DiskMirror[index].reconstructPoint;
+ }
+/****************************************************************
+ * Name: ReconTimerExpiry :LOCAL
+ *
+ * Description: Reconstruct timer expiry routine.
+ *
+ * Parameters: data - Pointer adapter data structure.
+ *
+ * Returns: Nothing.
+ *
+ ****************************************************************/
+static void ReconTimerExpiry (unsigned long data)
+ {
+ PADAPTER2220I padapter = (PADAPTER2220I)data;
+ struct Scsi_Host *host = padapter->SCpnt->device->host;
+ POUR_DEVICE pdev;
+ ULONG testsize = 0;
+ PIDENTIFY_DATA pid;
+ USHORT minmode;
+ ULONG zl;
+ UCHAR zc;
+ USHORT z;
+ unsigned long flags;
+
+ /*
+ * Disable interrupts, if they aren't already disabled and acquire
+ * the I/O spinlock.
+ */
+ spin_lock_irqsave(host->host_lock, flags);
+
+ if ( padapter->SCpnt )
+ goto reconTimerExpiry;
+
+ padapter->reconTimer.data = 0;
+ for ( z = padapter->devInReconIndex + 1; z < BIGD_MAXDRIVES; z++ )
+ {
+ if ( padapter->device[z].reconOn )
+ break;
+ }
+ if ( z < BIGD_MAXDRIVES )
+ pdev = &padapter->device[z];
+ else
+ {
+ for ( z = 0; z < BIGD_MAXDRIVES; z++ )
+ {
+ if ( padapter->device[z].reconOn )
+ break;
+ }
+ if ( z < BIGD_MAXDRIVES )
+ pdev = &padapter->device[z];
+ else
+ {
+ padapter->reconOn = FALSE;
+ goto reconTimerExpiry;
+ }
+ }
+
+ padapter->devInReconIndex = z;
+ pid = (PIDENTIFY_DATA)padapter->kBuffer;
+ padapter->pdev = pdev;
+ if ( pdev->reconIsStarting )
+ {
+ pdev->reconIsStarting = FALSE;
+ pdev->reconOn = FALSE;
+
+ while ( (pdev->DiskMirror[0].signature == SIGNATURE) && (pdev->DiskMirror[1].signature == SIGNATURE) &&
+ (pdev->DiskMirror[0].pairIdentifier == (pdev->DiskMirror[1].pairIdentifier ^ 1)) )
+ {
+ if ( (pdev->DiskMirror[0].status & UCBF_MATCHED) && (pdev->DiskMirror[1].status & UCBF_MATCHED) )
+ break;
+
+ if ( pdev->DiskMirror[0].status & UCBF_SURVIVOR ) // is first drive survivor?
+ testsize = SetReconstruct (pdev, 0);
+ else
+ if ( pdev->DiskMirror[1].status & UCBF_SURVIVOR ) // is second drive survivor?
+ testsize = SetReconstruct (pdev, 1);
+
+ if ( (pdev->DiskMirror[0].status & UCBF_REBUILD) || (pdev->DiskMirror[1].status & UCBF_REBUILD) )
+ {
+ if ( pdev->DiskMirror[0].status & UCBF_REBUILD )
+ pdev->mirrorRecon = 0;
+ else
+ pdev->mirrorRecon = 1;
+ pdev->reconOn = TRUE;
+ }
+ break;
+ }
+
+ if ( !pdev->reconOn )
+ goto reconTimerExpiry;
+
+ if ( padapter->bigD )
+ {
+ padapter->failRegister = 0;
+ outb_p (~padapter->failRegister, padapter->regFail);
+ }
+ else
+ {
+ zc = ((inb_p (padapter->regStatSel) >> 3) | inb_p (padapter->regStatSel)) & 0x83; // mute the alarm
+ outb_p (0xFF, padapter->regFail);
+ }
+
+ while ( 1 )
+ {
+ DEB (printk ("\npci2220i: hard reset issue"));
+ if ( HardReset (padapter, pdev, pdev->spigots[pdev->mirrorRecon]) )
+ {
+ DEB (printk ("\npci2220i: sub 1"));
+ break;
+ }
+
+ pdev->lastsectorlba[pdev->mirrorRecon] = InlineIdentify (padapter, pdev->spigots[pdev->mirrorRecon], pdev->deviceID[pdev->mirrorRecon] & 1);
+
+ if ( pdev->lastsectorlba[pdev->mirrorRecon] < testsize )
+ {
+ DEB (printk ("\npci2220i: sub 2 %ld %ld", pdev->lastsectorlba[pdev->mirrorRecon], testsize));
+ break;
+ }
+
+ // test LBA and multiper sector transfer compatibility
+ if (!pid->SupportLBA || (pid->NumSectorsPerInt < SECTORSXFER) || !pid->Valid_64_70 )
+ {
+ DEB (printk ("\npci2220i: sub 3"));
+ break;
+ }
+
+ // test PIO/bus matering mode compatibility
+ if ( (pid->MinPIOCycleWithoutFlow > 240) && !pid->SupportIORDYDisable && !padapter->timingPIO )
+ {
+ DEB (printk ("\npci2220i: sub 4"));
+ break;
+ }
+
+ if ( pid->MinPIOCycleWithoutFlow <= 120 ) // setup timing mode of drive
+ minmode = 5;
+ else
+ {
+ if ( pid->MinPIOCylceWithFlow <= 150 )
+ minmode = 4;
+ else
+ {
+ if ( pid->MinPIOCylceWithFlow <= 180 )
+ minmode = 3;
+ else
+ {
+ if ( pid->MinPIOCylceWithFlow <= 240 )
+ minmode = 2;
+ else
+ {
+ DEB (printk ("\npci2220i: sub 5"));
+ break;
+ }
+ }
+ }
+ }
+
+ if ( padapter->timingMode > minmode ) // set minimum timing mode
+ padapter->timingMode = minmode;
+ if ( padapter->timingMode >= 2 )
+ padapter->timingAddress = ModeArray[padapter->timingMode - 2];
+ else
+ padapter->timingPIO = TRUE;
+
+ padapter->reconOn = TRUE;
+ break;
+ }
+
+ if ( !pdev->reconOn )
+ {
+ padapter->survivor = pdev->mirrorRecon ^ 1;
+ padapter->reconPhase = RECON_PHASE_FAILOVER;
+ DEB (printk ("\npci2220i: FAILURE 7"));
+ InitFailover (padapter, pdev);
+ goto reconTimerExpiry;
+ }
+
+ pdev->raid = TRUE;
+
+ if ( WriteSignature (padapter, pdev, pdev->spigot, pdev->mirrorRecon ^ 1) )
+ goto reconTimerExpiry;
+ padapter->reconPhase = RECON_PHASE_MARKING;
+ goto reconTimerExpiry;
+ }
+
+ //**********************************
+ // reconstruct copy starts here
+ //**********************************
+ if ( pdev->reconCount++ > 2000 )
+ {
+ pdev->reconCount = 0;
+ if ( WriteSignature (padapter, pdev, pdev->spigots[pdev->mirrorRecon], pdev->mirrorRecon) )
+ {
+ padapter->survivor = pdev->mirrorRecon ^ 1;
+ padapter->reconPhase = RECON_PHASE_FAILOVER;
+ DEB (printk ("\npci2220i: FAILURE 8"));
+ InitFailover (padapter, pdev);
+ goto reconTimerExpiry;
+ }
+ padapter->reconPhase = RECON_PHASE_UPDATE;
+ goto reconTimerExpiry;
+ }
+
+ zl = pdev->DiskMirror[pdev->mirrorRecon].reconstructPoint;
+ padapter->reconSize = pdev->DiskMirror[pdev->mirrorRecon ^ 1].reconstructPoint - zl;
+ if ( padapter->reconSize > MAX_BUS_MASTER_BLOCKS )
+ padapter->reconSize = MAX_BUS_MASTER_BLOCKS;
+
+ if ( padapter->reconSize )
+ {
+ SelectSpigot (padapter, pdev->spigots[0] | pdev->spigots[1]); // select the spigots
+ outb_p (pdev->byte6 | ((UCHAR *)(&zl))[3], padapter->regLba24); // select the drive
+ SelectSpigot (padapter, pdev->spigot);
+ if ( WaitReady (padapter) )
+ goto reconTimerExpiry;
+
+ SelectSpigot (padapter, pdev->spigots[pdev->mirrorRecon]);
+ if ( WaitReady (padapter) )
+ {
+ padapter->survivor = pdev->mirrorRecon ^ 1;
+ padapter->reconPhase = RECON_PHASE_FAILOVER;
+ DEB (printk ("\npci2220i: FAILURE 9"));
+ InitFailover (padapter, pdev);
+ goto reconTimerExpiry;
+ }
+
+ SelectSpigot (padapter, pdev->spigots[0] | pdev->spigots[1]);
+ outb_p (padapter->reconSize & 0xFF, padapter->regSectCount);
+ outb_p (((UCHAR *)(&zl))[0], padapter->regLba0);
+ outb_p (((UCHAR *)(&zl))[1], padapter->regLba8);
+ outb_p (((UCHAR *)(&zl))[2], padapter->regLba16);
+ padapter->expectingIRQ = TRUE;
+ padapter->reconPhase = RECON_PHASE_READY;
+ SelectSpigot (padapter, pdev->spigots[pdev->mirrorRecon]);
+ WriteCommand (padapter, WRITE_CMD);
+ StartTimer (padapter);
+ SelectSpigot (padapter, pdev->spigot);
+ WriteCommand (padapter, READ_CMD);
+ goto reconTimerExpiry;
+ }
+
+ pdev->DiskMirror[pdev->mirrorRecon].status = UCBF_MIRRORED | UCBF_MATCHED;
+ pdev->DiskMirror[pdev->mirrorRecon ^ 1].status = UCBF_MIRRORED | UCBF_MATCHED;
+ if ( WriteSignature (padapter, pdev, pdev->spigot, pdev->mirrorRecon ^ 1) )
+ goto reconTimerExpiry;
+ padapter->reconPhase = RECON_PHASE_LAST;
+
+reconTimerExpiry:;
+ /*
+ * Release the I/O spinlock and restore the original flags
+ * which will enable interrupts if and only if they were
+ * enabled on entry.
+ */
+ spin_unlock_irqrestore(host->host_lock, flags);
+ }
+/****************************************************************
+ * Name: Irq_Handler :LOCAL
+ *
+ * Description: Interrupt handler.
+ *
+ * Parameters: irq - Hardware IRQ number.
+ * dev_id -
+ * regs -
+ *
+ * Returns: TRUE if drive is not ready in time.
+ *
+ ****************************************************************/
+static irqreturn_t Irq_Handler (int irq, void *dev_id, struct pt_regs *regs)
+ {
+ struct Scsi_Host *shost = NULL; // Pointer to host data block
+ PADAPTER2220I padapter; // Pointer to adapter control structure
+ POUR_DEVICE pdev;
+ Scsi_Cmnd *SCpnt;
+ UCHAR status;
+ UCHAR status1;
+ ATAPI_STATUS statusa;
+ ATAPI_REASON reasona;
+ ATAPI_ERROR errora;
+ int z;
+ ULONG zl;
+ unsigned long flags;
+ int handled = 0;
+
+// DEB (printk ("\npci2220i received interrupt\n"));
+
+ for ( z = 0; z < NumAdapters; z++ ) // scan for interrupt to process
+ {
+ if ( PsiHost[z]->irq == (UCHAR)(irq & 0xFF) )
+ {
+ if ( inw_p (HOSTDATA(PsiHost[z])->regIrqControl) & 0x8000 )
+ {
+ shost = PsiHost[z];
+ break;
+ }
+ }
+ }
+
+ if ( !shost )
+ {
+ DEB (printk ("\npci2220i: not my interrupt"));
+ goto out;
+ }
+
+ handled = 1;
+ spin_lock_irqsave(shost->host_lock, flags);
+ padapter = HOSTDATA(shost);
+ pdev = padapter->pdev;
+ SCpnt = padapter->SCpnt;
+ outb_p (0x08, padapter->regDmaCmdStat); // cancel interrupt from DMA engine
+
+ if ( padapter->atapi && SCpnt )
+ {
+ *(char *)&statusa = inb_p (padapter->regStatCmd); // read the device status
+ *(char *)&reasona = inb_p (padapter->regSectCount); // read the device interrupt reason
+
+ if ( !statusa.bsy )
+ {
+ if ( statusa.drq ) // test for transfer phase
+ {
+ if ( !reasona.cod ) // test for data phase
+ {
+ z = (ULONG)inb_p (padapter->regLba8) | (ULONG)(inb_p (padapter->regLba16) << 8);
+ if ( padapter->reqSense )
+ insw (padapter->regData, SCpnt->sense_buffer, z / 2);
+ else
+ AtapiBusMaster (padapter, reasona.io, z);
+ goto irq_return;
+ }
+ if ( reasona.cod && !reasona.io ) // test for command packet phase
+ {
+ if ( padapter->reqSense )
+ AtapiRequestSense (padapter, pdev, SCpnt, TRUE);
+ else
+ AtapiSendCdb (padapter, pdev, padapter->atapiCdb);
+ goto irq_return;
+ }
+ }
+ else
+ {
+ if ( reasona.io && statusa.drdy ) // test for status phase
+ {
+ Atapi2Scsi (padapter, SCpnt);
+ if ( statusa.check )
+ {
+ *(UCHAR *)&errora = inb_p (padapter->regError); // read the device error
+ if ( errora.senseKey )
+ {
+ if ( padapter->reqSense || AtapiRequestSense (padapter, pdev, SCpnt, FALSE) )
+ OpDone (padapter, DID_ERROR << 16);
+ }
+ else
+ {
+ if ( errora.ili || errora.abort )
+ OpDone (padapter, DID_ERROR << 16);
+ else
+ OpDone (padapter, DID_OK << 16);
+ }
+ }
+ else
+ if ( padapter->reqSense )
+ {
+ DEB (printk ("PCI2242I: Sense codes - %X %X %X ", ((UCHAR *)SCpnt->sense_buffer)[0], ((UCHAR *)SCpnt->sense_buffer)[12], ((UCHAR *)SCpnt->sense_buffer)[13]));
+ OpDone (padapter, (DRIVER_SENSE << 24) | (DID_OK << 16) | 2);
+ }
+ else
+ OpDone (padapter, DID_OK << 16);
+ }
+ }
+ }
+ goto irq_return;
+ }
+
+ if ( !padapter->expectingIRQ || !(SCpnt || padapter->reconPhase) )
+ {
+ DEB(printk ("\npci2220i Unsolicited interrupt\n"));
+ STOP_HERE ();
+ goto irq_return;
+ }
+ padapter->expectingIRQ = 0;
+
+ if ( padapter->failinprog )
+ {
+ DEB (printk ("\npci2220i interrupt failover complete"));
+ padapter->failinprog = FALSE;
+ status = inb_p (padapter->regStatCmd); // read the device status
+ if ( status & (IDE_STATUS_ERROR | IDE_STATUS_WRITE_FAULT) )
+ {
+ DEB (printk ("\npci2220i: interrupt failover error from drive %X", status));
+ padapter->cmd = 0;
+ }
+ else
+ {
+ DEB (printk ("\npci2220i: restarting failed opertation."));
+ pdev->spigot = (padapter->survivor) ? pdev->spigots[1] : pdev->spigots[0];
+ del_timer (&padapter->timer);
+ if ( padapter->reconPhase )
+ OpDone (padapter, DID_OK << 16);
+ else
+ Pci2220i_QueueCommand (SCpnt, SCpnt->scsi_done);
+ goto irq_return;
+ }
+ }
+
+ if ( padapter->reconPhase )
+ {
+ switch ( padapter->reconPhase )
+ {
+ case RECON_PHASE_MARKING:
+ case RECON_PHASE_LAST:
+ status = inb_p (padapter->regStatCmd); // read the device status
+ del_timer (&padapter->timer);
+ if ( padapter->reconPhase == RECON_PHASE_LAST )
+ {
+ if ( status & (IDE_STATUS_ERROR | IDE_STATUS_WRITE_FAULT) )
+ {
+ padapter->survivor = ( pdev->spigot == pdev->spigots[0] ) ? 1 : 0;
+ DEB (printk ("\npci2220i: FAILURE 10"));
+ if ( InitFailover (padapter, pdev) )
+ OpDone (padapter, DecodeError (padapter, status));
+ goto irq_return;
+ }
+ if ( WriteSignature (padapter, pdev, pdev->spigots[pdev->mirrorRecon], pdev->mirrorRecon) )
+ {
+ padapter->survivor = ( pdev->spigot == pdev->spigots[0] ) ? 0 : 1;
+ DEB (printk ("\npci2220i: FAILURE 11"));
+ if ( InitFailover (padapter, pdev) )
+ OpDone (padapter, DecodeError (padapter, status));
+ goto irq_return;
+ }
+ padapter->reconPhase = RECON_PHASE_END;
+ goto irq_return;
+ }
+ OpDone (padapter, DID_OK << 16);
+ goto irq_return;
+
+ case RECON_PHASE_READY:
+ status = inb_p (padapter->regStatCmd); // read the device status
+ if ( status & (IDE_STATUS_ERROR | IDE_STATUS_WRITE_FAULT) )
+ {
+ del_timer (&padapter->timer);
+ OpDone (padapter, DecodeError (padapter, status));
+ goto irq_return;
+ }
+ SelectSpigot (padapter, pdev->spigots[pdev->mirrorRecon]);
+ if ( WaitDrq (padapter) )
+ {
+ del_timer (&padapter->timer);
+ padapter->survivor = ( pdev->spigot == pdev->spigots[0] ) ? 0 : 1;
+ DEB (printk ("\npci2220i: FAILURE 12"));
+ if ( InitFailover (padapter, pdev) )
+ OpDone (padapter, DecodeError (padapter, status));
+ goto irq_return;
+ }
+ SelectSpigot (padapter, pdev->spigot | SEL_COPY | padapter->bigD);
+ padapter->reconPhase = RECON_PHASE_COPY;
+ padapter->expectingIRQ = TRUE;
+ if ( padapter->timingPIO )
+ {
+ insw (padapter->regData, padapter->kBuffer, padapter->reconSize * (BYTES_PER_SECTOR / 2));
+ }
+ else
+ {
+ if ( (padapter->timingMode > 3) )
+ {
+ if ( padapter->bigD )
+ outl (BIGD_DATA_MODE3, padapter->regDmaAddrLoc);
+ else
+ outl (DALE_DATA_MODE3, padapter->regDmaAddrLoc);
+ }
+ else
+ outl (padapter->timingAddress, padapter->regDmaAddrLoc);
+ outl (padapter->kBufferDma, padapter->regDmaAddrPci);
+ outl (padapter->reconSize * BYTES_PER_SECTOR, padapter->regDmaCount);
+ outb_p (8, padapter->regDmaDesc); // read operation
+ if ( padapter->bigD )
+ outb_p (8, padapter->regDmaMode); // no interrupt
+ else
+ outb_p (1, padapter->regDmaMode); // no interrupt
+ outb_p (0x03, padapter->regDmaCmdStat); // kick the DMA engine in gear
+ }
+ goto irq_return;
+
+ case RECON_PHASE_COPY:
+ pdev->DiskMirror[pdev->mirrorRecon].reconstructPoint += padapter->reconSize;
+
+ case RECON_PHASE_UPDATE:
+ SelectSpigot (padapter, pdev->spigots[pdev->mirrorRecon] | SEL_IRQ_OFF);
+ status = inb_p (padapter->regStatCmd); // read the device status
+ del_timer (&padapter->timer);
+ if ( status & (IDE_STATUS_ERROR | IDE_STATUS_WRITE_FAULT) )
+ {
+ padapter->survivor = ( pdev->spigot == pdev->spigots[0] ) ? 0 : 1;
+ DEB (printk ("\npci2220i: FAILURE 13"));
+ DEB (printk ("\n status register = %X error = %X", status, inb_p (padapter->regError)));
+ if ( InitFailover (padapter, pdev) )
+ OpDone (padapter, DecodeError (padapter, status));
+ goto irq_return;
+ }
+ OpDone (padapter, DID_OK << 16);
+ goto irq_return;
+
+ case RECON_PHASE_END:
+ status = inb_p (padapter->regStatCmd); // read the device status
+ del_timer (&padapter->timer);
+ if ( status & (IDE_STATUS_ERROR | IDE_STATUS_WRITE_FAULT) )
+ {
+ padapter->survivor = ( pdev->spigot == pdev->spigots[0] ) ? 0 : 1;
+ DEB (printk ("\npci2220i: FAILURE 14"));
+ if ( InitFailover (padapter, pdev) )
+ OpDone (padapter, DecodeError (padapter, status));
+ goto irq_return;
+ }
+ pdev->reconOn = 0;
+ if ( padapter->bigD )
+ {
+ for ( z = 0; z < padapter->numberOfDrives; z++ )
+ {
+ if ( padapter->device[z].DiskMirror[0].status & UCBF_SURVIVOR )
+ {
+ Alarm (padapter, padapter->device[z].deviceID[0] ^ 2);
+ MuteAlarm (padapter);
+ }
+ if ( padapter->device[z].DiskMirror[1].status & UCBF_SURVIVOR )
+ {
+ Alarm (padapter, padapter->device[z].deviceID[1] ^ 2);
+ MuteAlarm (padapter);
+ }
+ }
+ }
+ OpDone (padapter, DID_OK << 16);
+ goto irq_return;
+
+ default:
+ goto irq_return;
+ }
+ }
+
+ switch ( padapter->cmd ) // decide how to handle the interrupt
+ {
+ case READ_CMD:
+ if ( padapter->sectorCount )
+ {
+ status = inb_p (padapter->regStatCmd); // read the device status
+ if ( status & (IDE_STATUS_ERROR | IDE_STATUS_WRITE_FAULT) )
+ {
+ if ( pdev->raid )
+ {
+ padapter->survivor = ( pdev->spigot == pdev->spigots[0] ) ? 1 : 0;
+ del_timer (&padapter->timer);
+ DEB (printk ("\npci2220i: FAILURE 15"));
+ if ( !InitFailover (padapter, pdev) )
+ goto irq_return;
+ }
+ break;
+ }
+ if ( padapter->timingPIO )
+ {
+ insw (padapter->regData, padapter->kBuffer, padapter->readCount / 2);
+ padapter->sectorCount -= padapter->readCount / BYTES_PER_SECTOR;
+ WalkScatGath (padapter, TRUE, padapter->readCount);
+ if ( !padapter->sectorCount )
+ {
+ status = 0;
+ break;
+ }
+ }
+ else
+ {
+ if ( padapter->readCount )
+ WalkScatGath (padapter, TRUE, padapter->readCount);
+ BusMaster (padapter, 1, 1);
+ }
+ padapter->expectingIRQ = TRUE;
+ goto irq_return;
+ }
+ if ( padapter->readCount && !padapter->timingPIO )
+ WalkScatGath (padapter, TRUE, padapter->readCount);
+ status = 0;
+ break;
+
+ case WRITE_CMD:
+ if ( pdev->raid )
+ {
+ SelectSpigot (padapter, pdev->spigots[0] | SEL_IRQ_OFF);
+ status = inb_p (padapter->regStatCmd); // read the device status
+ SelectSpigot (padapter, pdev->spigots[1] | SEL_IRQ_OFF);
+ status1 = inb_p (padapter->regStatCmd); // read the device status
+ }
+ else
+ SelectSpigot (padapter, pdev->spigot | SEL_IRQ_OFF);
+ status = inb_p (padapter->regStatCmd); // read the device status
+ status1 = 0;
+
+ if ( status & (IDE_STATUS_ERROR | IDE_STATUS_WRITE_FAULT) )
+ {
+ if ( pdev->raid && !(status1 & (IDE_STATUS_ERROR | IDE_STATUS_WRITE_FAULT)) )
+ {
+ padapter->survivor = 1;
+ del_timer (&padapter->timer);
+ SelectSpigot (padapter, pdev->spigot | SEL_IRQ_OFF);
+ DEB (printk ("\npci2220i: FAILURE 16 status = %X error = %X", status, inb_p (padapter->regError)));
+ if ( !InitFailover (padapter, pdev) )
+ goto irq_return;
+ }
+ break;
+ }
+ if ( pdev->raid )
+ {
+ if ( status1 & (IDE_STATUS_ERROR | IDE_STATUS_WRITE_FAULT) )
+ {
+ padapter->survivor = 0;
+ del_timer (&padapter->timer);
+ DEB (printk ("\npci2220i: FAILURE 17 status = %X error = %X", status1, inb_p (padapter->regError)));
+ if ( !InitFailover (padapter, pdev) )
+ goto irq_return;
+ status = status1;
+ break;
+ }
+ if ( padapter->sectorCount )
+ {
+ status = WriteDataBoth (padapter, pdev);
+ if ( status )
+ {
+ padapter->survivor = status >> 1;
+ del_timer (&padapter->timer);
+ DEB (printk ("\npci2220i: FAILURE 18"));
+ if ( !InitFailover (padapter, pdev) )
+ goto irq_return;
+ SelectSpigot (padapter, pdev->spigots[status] | SEL_IRQ_OFF);
+ status = inb_p (padapter->regStatCmd); // read the device status
+ break;
+ }
+ padapter->expectingIRQ = TRUE;
+ goto irq_return;
+ }
+ status = 0;
+ break;
+ }
+ if ( padapter->sectorCount )
+ {
+ SelectSpigot (padapter, pdev->spigot | padapter->bigD);
+ status = WriteData (padapter);
+ if ( status )
+ break;
+ padapter->expectingIRQ = TRUE;
+ goto irq_return;
+ }
+ status = 0;
+ break;
+
+ case IDE_COMMAND_IDENTIFY:
+ {
+ PINQUIRYDATA pinquiryData = SCpnt->request_buffer;
+ PIDENTIFY_DATA pid = (PIDENTIFY_DATA)padapter->kBuffer;
+
+ status = inb_p (padapter->regStatCmd);
+ if ( status & IDE_STATUS_DRQ )
+ {
+ insw (padapter->regData, pid, sizeof (IDENTIFY_DATA) >> 1);
+
+ memset (pinquiryData, 0, SCpnt->request_bufflen); // Zero INQUIRY data structure.
+ pinquiryData->DeviceType = 0;
+ pinquiryData->Versions = 2;
+ pinquiryData->AdditionalLength = 35 - 4;
+
+ // Fill in vendor identification fields.
+ for ( z = 0; z < 20; z += 2 )
+ {
+ pinquiryData->VendorId[z] = ((UCHAR *)pid->ModelNumber)[z + 1];
+ pinquiryData->VendorId[z + 1] = ((UCHAR *)pid->ModelNumber)[z];
+ }
+
+ // Initialize unused portion of product id.
+ for ( z = 0; z < 4; z++ )
+ pinquiryData->ProductId[12 + z] = ' ';
+
+ // Move firmware revision from IDENTIFY data to
+ // product revision in INQUIRY data.
+ for ( z = 0; z < 4; z += 2 )
+ {
+ pinquiryData->ProductRevisionLevel[z] = ((UCHAR *)pid->FirmwareRevision)[z + 1];
+ pinquiryData->ProductRevisionLevel[z + 1] = ((UCHAR *)pid->FirmwareRevision)[z];
+ }
+ if ( pdev == padapter->device )
+ *((USHORT *)(&pinquiryData->VendorSpecific)) = DEVICE_DALE_1;
+
+ status = 0;
+ }
+ break;
+ }
+
+ default:
+ status = 0;
+ break;
+ }
+
+ del_timer (&padapter->timer);
+ if ( status )
+ {
+ DEB (printk ("\npci2220i Interrupt handler return error"));
+ zl = DecodeError (padapter, status);
+ }
+ else
+ zl = DID_OK << 16;
+
+ OpDone (padapter, zl);
+irq_return:
+ spin_unlock_irqrestore(shost->host_lock, flags);
+out:
+ return IRQ_RETVAL(handled);
+}
+
+/****************************************************************
+ * Name: Pci2220i_QueueCommand
+ *
+ * Description: Process a queued command from the SCSI manager.
+ *
+ * Parameters: SCpnt - Pointer to SCSI command structure.
+ * done - Pointer to done function to call.
+ *
+ * Returns: Status code.
+ *
+ ****************************************************************/
+int Pci2220i_QueueCommand (Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *))
+ {
+ UCHAR *cdb = (UCHAR *)SCpnt->cmnd; // Pointer to SCSI CDB
+ PADAPTER2220I padapter = HOSTDATA(SCpnt->device->host); // Pointer to adapter control structure
+ POUR_DEVICE pdev = &padapter->device[SCpnt->device->id];// Pointer to device information
+ UCHAR rc; // command return code
+ int z;
+ PDEVICE_RAID1 pdr;
+
+ SCpnt->scsi_done = done;
+ padapter->SCpnt = SCpnt; // Save this command data
+ padapter->readCount = 0;
+
+ if ( SCpnt->use_sg )
+ {
+ padapter->currentSgBuffer = ((struct scatterlist *)SCpnt->request_buffer)[0].address;
+ padapter->currentSgCount = ((struct scatterlist *)SCpnt->request_buffer)[0].length;
+ }
+ else
+ {
+ padapter->currentSgBuffer = SCpnt->request_buffer;
+ padapter->currentSgCount = SCpnt->request_bufflen;
+ }
+ padapter->nextSg = 1;
+
+ if ( !done )
+ {
+ printk("pci2220i_queuecommand: %02X: done can't be NULL\n", *cdb);
+ return 0;
+ }
+
+ if ( padapter->atapi )
+ {
+ UCHAR zlo, zhi;
+
+ DEB (printk ("\nPCI2242I: ID %d, LUN %d opcode %X ", SCpnt->device->id, SCpnt->device->lun, *cdb));
+ padapter->pdev = pdev;
+ if ( !pdev->byte6 || SCpnt->device->lun )
+ {
+ OpDone (padapter, DID_BAD_TARGET << 16);
+ return 0;
+ }
+
+ padapter->atapiSpecial = FALSE;
+ padapter->reqSense = FALSE;
+ memset (padapter->atapiCdb, 0, 16);
+ SelectSpigot (padapter, pdev->spigot); // select the spigot
+ AtapiDevice (padapter, pdev->byte6); // select the drive
+ if ( AtapiWaitReady (padapter, 100) )
+ {
+ OpDone (padapter, DID_NO_CONNECT << 16);
+ return 0;
+ }
+
+ switch ( cdb[0] )
+ {
+ case SCSIOP_MODE_SENSE:
+ case SCSIOP_MODE_SELECT:
+ Scsi2Atapi (padapter, SCpnt);
+ z = SCpnt->request_bufflen + 4;
+ break;
+ case SCSIOP_READ6:
+ case SCSIOP_WRITE6:
+ Scsi2Atapi (padapter, SCpnt);
+ z = SCpnt->request_bufflen;
+ break;
+ default:
+ memcpy (padapter->atapiCdb, cdb, SCpnt->cmd_len);
+ z = SCpnt->request_bufflen;
+ break;
+ }
+ if ( z > ATAPI_TRANSFER )
+ z = ATAPI_TRANSFER;
+ zlo = (UCHAR)(z & 0xFF);
+ zhi = (UCHAR)(z >> 8);
+
+ AtapiCountLo (padapter, zlo);
+ AtapiCountHi (padapter, zhi);
+ outb_p (0, padapter->regError);
+ WriteCommand (padapter, IDE_COMMAND_ATAPI_PACKET);
+ if ( pdev->cmdDrqInt )
+ return 0;
+
+ if ( AtapiWaitDrq (padapter, 500) )
+ {
+ OpDone (padapter, DID_ERROR << 16);
+ return 0;
+ }
+ AtapiSendCdb (padapter, pdev, padapter->atapiCdb);
+ return 0;
+ }
+
+ if ( padapter->reconPhase )
+ return 0;
+ if ( padapter->reconTimer.data )
+ {
+ del_timer (&padapter->reconTimer);
+ padapter->reconTimer.data = 0;
+ }
+
+ if ( (SCpnt->device->id >= padapter->numberOfDrives) || SCpnt->device->lun )
+ {
+ OpDone (padapter, DID_BAD_TARGET << 16);
+ return 0;
+ }
+
+ switch ( *cdb )
+ {
+ case SCSIOP_INQUIRY: // inquiry CDB
+ {
+ if ( cdb[2] == SC_MY_RAID )
+ {
+ switch ( cdb[3] )
+ {
+ case MY_SCSI_REBUILD:
+ for ( z = 0; z < padapter->numberOfDrives; z++ )
+ {
+ pdev = &padapter->device[z];
+ if ( ((pdev->DiskMirror[0].status & UCBF_SURVIVOR) && (pdev->DiskMirror[1].status & UCBF_MIRRORED)) ||
+ ((pdev->DiskMirror[1].status & UCBF_SURVIVOR) && (pdev->DiskMirror[0].status & UCBF_MIRRORED)) )
+ {
+ padapter->reconOn = pdev->reconOn = pdev->reconIsStarting = TRUE;
+ }
+ }
+ OpDone (padapter, DID_OK << 16);
+ break;
+ case MY_SCSI_ALARMMUTE:
+ MuteAlarm (padapter);
+ OpDone (padapter, DID_OK << 16);
+ break;
+ case MY_SCSI_DEMOFAIL:
+ padapter->demoFail = TRUE;
+ OpDone (padapter, DID_OK << 16);
+ break;
+ default:
+ z = cdb[5]; // get index
+ pdr = (PDEVICE_RAID1)SCpnt->request_buffer;
+ if ( padapter->raidData[z] )
+ {
+ memcpy (&pdr->DiskRaid1, padapter->raidData[z], sizeof (DISK_MIRROR));
+ if ( padapter->raidData[z]->reconstructPoint > padapter->raidData[z ^ 2]->reconstructPoint )
+ pdr->TotalSectors = padapter->raidData[z]->reconstructPoint;
+ else
+ pdr->TotalSectors = padapter->raidData[z ^ 2]->reconstructPoint;
+ }
+ else
+ memset (pdr, 0, sizeof (DEVICE_RAID1));
+ OpDone (padapter, DID_OK << 16);
+ break;
+ }
+ return 0;
+ }
+ padapter->cmd = IDE_COMMAND_IDENTIFY;
+ break;
+ }
+
+ case SCSIOP_TEST_UNIT_READY: // test unit ready CDB
+ OpDone (padapter, DID_OK << 16);
+ return 0;
+ case SCSIOP_READ_CAPACITY: // read capctiy CDB
+ {
+ PREAD_CAPACITY_DATA pdata = (PREAD_CAPACITY_DATA)SCpnt->request_buffer;
+
+ pdata->blksiz = 0x20000;
+ XANY2SCSI ((UCHAR *)&pdata->blks, pdev->blocks);
+ OpDone (padapter, DID_OK << 16);
+ return 0;
+ }
+ case SCSIOP_VERIFY: // verify CDB
+ padapter->startSector = XSCSI2LONG (&cdb[2]);
+ padapter->sectorCount = (UCHAR)((USHORT)cdb[8] | ((USHORT)cdb[7] << 8));
+ padapter->cmd = IDE_COMMAND_VERIFY;
+ break;
+ case SCSIOP_READ: // read10 CDB
+ padapter->startSector = XSCSI2LONG (&cdb[2]);
+ padapter->sectorCount = (USHORT)cdb[8] | ((USHORT)cdb[7] << 8);
+ padapter->cmd = READ_CMD;
+ break;
+ case SCSIOP_READ6: // read6 CDB
+ padapter->startSector = SCSI2LONG (&cdb[1]);
+ padapter->sectorCount = cdb[4];
+ padapter->cmd = READ_CMD;
+ break;
+ case SCSIOP_WRITE: // write10 CDB
+ padapter->startSector = XSCSI2LONG (&cdb[2]);
+ padapter->sectorCount = (USHORT)cdb[8] | ((USHORT)cdb[7] << 8);
+ padapter->cmd = WRITE_CMD;
+ break;
+ case SCSIOP_WRITE6: // write6 CDB
+ padapter->startSector = SCSI2LONG (&cdb[1]);
+ padapter->sectorCount = cdb[4];
+ padapter->cmd = WRITE_CMD;
+ break;
+ default:
+ DEB (printk ("pci2220i_queuecommand: Unsupported command %02X\n", *cdb));
+ OpDone (padapter, DID_ERROR << 16);
+ return 0;
+ }
+
+ if ( padapter->reconPhase )
+ return 0;
+
+ padapter->pdev = pdev;
+
+ while ( padapter->demoFail )
+ {
+ pdev = padapter->pdev = &padapter->device[0];
+ padapter->demoFail = FALSE;
+ if ( !pdev->raid ||
+ (pdev->DiskMirror[0].status & UCBF_SURVIVOR) ||
+ (pdev->DiskMirror[1].status & UCBF_SURVIVOR) )
+ {
+ break;
+ }
+ if ( pdev->DiskMirror[0].status & UCBF_REBUILD )
+ padapter->survivor = 1;
+ else
+ padapter->survivor = 0;
+ DEB (printk ("\npci2220i: FAILURE 19"));
+ if ( InitFailover (padapter, pdev) )
+ break;
+ return 0;
+ }
+
+ StartTimer (padapter);
+ if ( pdev->raid && (padapter->cmd == WRITE_CMD) )
+ {
+ rc = IdeCmdBoth (padapter, pdev);
+ if ( !rc )
+ rc = WriteDataBoth (padapter, pdev);
+ if ( rc )
+ {
+ del_timer (&padapter->timer);
+ padapter->expectingIRQ = 0;
+ padapter->survivor = rc >> 1;
+ DEB (printk ("\npci2220i: FAILURE 20"));
+ if ( InitFailover (padapter, pdev) )
+ {
+ OpDone (padapter, DID_ERROR << 16);
+ return 0;
+ }
+ }
+ }
+ else
+ {
+ rc = IdeCmd (padapter, pdev);
+ if ( (padapter->cmd == WRITE_CMD) && !rc )
+ rc = WriteData (padapter);
+ if ( rc )
+ {
+ del_timer (&padapter->timer);
+ padapter->expectingIRQ = 0;
+ if ( pdev->raid )
+ {
+ padapter->survivor = (pdev->spigot ^ 3) >> 1;
+ DEB (printk ("\npci2220i: FAILURE 21"));
+ if ( !InitFailover (padapter, pdev) )
+ return 0;
+ }
+ OpDone (padapter, DID_ERROR << 16);
+ return 0;
+ }
+ }
+ return 0;
+ }
+/****************************************************************
+ * Name: ReadFlash
+ *
+ * Description: Read information from controller Flash memory.
+ *
+ * Parameters: padapter - Pointer to host interface data structure.
+ * pdata - Pointer to data structures.
+ * base - base address in Flash.
+ * length - lenght of data space in bytes.
+ *
+ * Returns: Nothing.
+ *
+ ****************************************************************/
+static VOID ReadFlash (PADAPTER2220I padapter, VOID *pdata, ULONG base, ULONG length)
+ {
+ ULONG oldremap;
+ UCHAR olddesc;
+ ULONG z;
+ UCHAR *pd = (UCHAR *)pdata;
+
+ oldremap = inl (padapter->regRemap); // save values to restore later
+ olddesc = inb_p (padapter->regDesc);
+
+ outl (base | 1, padapter->regRemap); // remap to Flash space as specified
+ outb_p (0x40, padapter->regDesc); // describe remap region as 8 bit
+ for ( z = 0; z < length; z++) // get "length" data count
+ *pd++ = inb_p (padapter->regBase + z); // read in the data
+
+ outl (oldremap, padapter->regRemap); // restore remap register values
+ outb_p (olddesc, padapter->regDesc);
+ }
+/****************************************************************
+ * Name: GetRegs
+ *
+ * Description: Initialize the regester information.
+ *
+ * Parameters: pshost - Pointer to SCSI host data structure.
+ * bigd - PCI-2240I identifier
+ * pcidev - Pointer to device data structure.
+ *
+ * Returns: TRUE if failure to install.
+ *
+ ****************************************************************/
+static USHORT GetRegs (struct Scsi_Host *pshost, BOOL bigd, struct pci_dev *pcidev)
+ {
+ PADAPTER2220I padapter;
+ int setirq;
+ int z;
+ USHORT zr, zl;
+ UCHAR *consistent;
+ dma_addr_t consistentDma;
+
+ padapter = HOSTDATA(pshost);
+ memset (padapter, 0, sizeof (ADAPTER2220I));
+ memset (&DaleSetup, 0, sizeof (DaleSetup));
+ memset (DiskMirror, 0, sizeof (DiskMirror));
+
+ zr = pci_resource_start (pcidev, 1);
+ zl = pci_resource_start (pcidev, 2);
+
+ padapter->basePort = zr;
+ padapter->regRemap = zr + RTR_LOCAL_REMAP; // 32 bit local space remap
+ padapter->regDesc = zr + RTR_REGIONS; // 32 bit local region descriptor
+ padapter->regRange = zr + RTR_LOCAL_RANGE; // 32 bit local range
+ padapter->regIrqControl = zr + RTR_INT_CONTROL_STATUS; // 16 bit interrupt control and status
+ padapter->regScratchPad = zr + RTR_MAILBOX; // 16 byte scratchpad I/O base address
+
+ padapter->regBase = zl;
+ padapter->regData = zl + REG_DATA; // data register I/O address
+ padapter->regError = zl + REG_ERROR; // error register I/O address
+ padapter->regSectCount = zl + REG_SECTOR_COUNT; // sector count register I/O address
+ padapter->regLba0 = zl + REG_LBA_0; // least significant byte of LBA
+ padapter->regLba8 = zl + REG_LBA_8; // next least significant byte of LBA
+ padapter->regLba16 = zl + REG_LBA_16; // next most significan byte of LBA
+ padapter->regLba24 = zl + REG_LBA_24; // head and most 4 significant bits of LBA
+ padapter->regStatCmd = zl + REG_STAT_CMD; // status on read and command on write register
+ padapter->regStatSel = zl + REG_STAT_SEL; // board status on read and spigot select on write register
+ padapter->regFail = zl + REG_FAIL;
+ padapter->regAltStat = zl + REG_ALT_STAT;
+ padapter->pcidev = pcidev;
+
+ if ( bigd )
+ {
+ padapter->regDmaDesc = zr + RTR_DMA0_DESC_PTR; // address of the DMA discriptor register for direction of transfer
+ padapter->regDmaCmdStat = zr + RTR_DMA_COMMAND_STATUS; // Byte #0 of DMA command status register
+ padapter->regDmaAddrPci = zr + RTR_DMA0_PCI_ADDR; // 32 bit register for PCI address of DMA
+ padapter->regDmaAddrLoc = zr + RTR_DMA0_LOCAL_ADDR; // 32 bit register for local bus address of DMA
+ padapter->regDmaCount = zr + RTR_DMA0_COUNT; // 32 bit register for DMA transfer count
+ padapter->regDmaMode = zr + RTR_DMA0_MODE + 1; // 32 bit register for DMA mode control
+ padapter->bigD = SEL_NEW_SPEED_1; // set spigot speed control bit
+ }
+ else
+ {
+ padapter->regDmaDesc = zl + RTL_DMA1_DESC_PTR; // address of the DMA discriptor register for direction of transfer
+ padapter->regDmaCmdStat = zl + RTL_DMA_COMMAND_STATUS + 1; // Byte #1 of DMA command status register
+ padapter->regDmaAddrPci = zl + RTL_DMA1_PCI_ADDR; // 32 bit register for PCI address of DMA
+ padapter->regDmaAddrLoc = zl + RTL_DMA1_LOCAL_ADDR; // 32 bit register for local bus address of DMA
+ padapter->regDmaCount = zl + RTL_DMA1_COUNT; // 32 bit register for DMA transfer count
+ padapter->regDmaMode = zl + RTL_DMA1_MODE + 1; // 32 bit register for DMA mode control
+ }
+
+ padapter->numberOfDrives = inb_p (padapter->regScratchPad + BIGD_NUM_DRIVES);
+ if ( !bigd && !padapter->numberOfDrives ) // if no devices on this board
+ return TRUE;
+
+ pshost->irq = pcidev->irq;
+ setirq = 1;
+ for ( z = 0; z < Installed; z++ ) // scan for shared interrupts
+ {
+ if ( PsiHost[z]->irq == pshost->irq ) // if shared then, don't posses
+ setirq = 0;
+ }
+ if ( setirq ) // if not shared, posses
+ {
+ if ( request_irq (pshost->irq, Irq_Handler, SA_SHIRQ, "pci2220i", padapter) < 0 )
+ {
+ if ( request_irq (pshost->irq, Irq_Handler, SA_INTERRUPT | SA_SHIRQ, "pci2220i", padapter) < 0 )
+ {
+ printk ("Unable to allocate IRQ for PCI-2220I controller.\n");
+ return TRUE;
+ }
+ }
+ padapter->irqOwned = pshost->irq; // set IRQ as owned
+ }
+
+ if ( padapter->numberOfDrives )
+ consistent = pci_alloc_consistent (pcidev, SECTORSXFER * BYTES_PER_SECTOR, &consistentDma);
+ else
+ consistent = pci_alloc_consistent (pcidev, ATAPI_TRANSFER, &consistentDma);
+ if ( !consistent )
+ {
+ printk ("Unable to allocate DMA buffer for PCI-2220I controller.\n");
+ free_irq (pshost->irq, padapter);
+ return TRUE;
+ }
+ padapter->kBuffer = consistent;
+ padapter->kBufferDma = consistentDma;
+
+ PsiHost[Installed] = pshost; // save SCSI_HOST pointer
+ pshost->io_port = padapter->basePort;
+ pshost->n_io_port = 0xFF;
+ pshost->unique_id = padapter->regBase;
+
+ outb_p (0x01, padapter->regRange); // fix our range register because other drivers want to tromp on it
+
+ padapter->timingMode = inb_p (padapter->regScratchPad + DALE_TIMING_MODE);
+ if ( padapter->timingMode >= 2 )
+ {
+ if ( bigd )
+ padapter->timingAddress = ModeArray2[padapter->timingMode - 2];
+ else
+ padapter->timingAddress = ModeArray[padapter->timingMode - 2];
+ }
+ else
+ padapter->timingPIO = TRUE;
+
+ ReadFlash (padapter, &DaleSetup, DALE_FLASH_SETUP, sizeof (SETUP));
+ ReadFlash (padapter, &DiskMirror, DALE_FLASH_RAID, sizeof (DiskMirror));
+
+ return FALSE;
+ }
+/****************************************************************
+ * Name: SetupFinish
+ *
+ * Description: Complete the driver initialization process for a card
+ *
+ * Parameters: padapter - Pointer to SCSI host data structure.
+ * str - Pointer to board type string.
+ *
+ * Returns: Nothing.
+ *
+ ****************************************************************/
+VOID SetupFinish (PADAPTER2220I padapter, char *str, int irq)
+ {
+ init_timer (&padapter->timer);
+ padapter->timer.function = TimerExpiry;
+ padapter->timer.data = (unsigned long)padapter;
+ init_timer (&padapter->reconTimer);
+ padapter->reconTimer.function = ReconTimerExpiry;
+ padapter->reconTimer.data = (unsigned long)padapter;
+ printk("\nPCI-%sI EIDE CONTROLLER: at I/O = %lX/%lX IRQ = %d\n", str, padapter->basePort, padapter->regBase, irq);
+ printk("Version %s, Compiled %s %s\n\n", PCI2220I_VERSION, __DATE__, __TIME__);
+ }
+/****************************************************************
+ * Name: Pci2220i_Detect
+ *
+ * Description: Detect and initialize our boards.
+ *
+ * Parameters: tpnt - Pointer to SCSI host template structure.
+ *
+ * Returns: Number of adapters installed.
+ *
+ ****************************************************************/
+int Pci2220i_Detect (Scsi_Host_Template *tpnt)
+ {
+ struct Scsi_Host *pshost;
+ PADAPTER2220I padapter;
+ POUR_DEVICE pdev;
+ int unit;
+ int z;
+ USHORT raidon;
+ UCHAR spigot1, spigot2;
+ UCHAR device;
+ struct pci_dev *pcidev = NULL;
+
+ while ( (pcidev = pci_find_device (VENDOR_PSI, DEVICE_DALE_1, pcidev)) != NULL )
+ {
+ if (pci_enable_device(pcidev))
+ continue;
+ pshost = scsi_register (tpnt, sizeof(ADAPTER2220I));
+ if(pshost==NULL)
+ continue;
+
+ padapter = HOSTDATA(pshost);
+
+ if ( GetRegs (pshost, FALSE, pcidev) )
+ goto unregister;
+
+ scsi_set_device(pshost, &pcidev->dev);
+ pshost->max_id = padapter->numberOfDrives;
+ for ( z = 0; z < padapter->numberOfDrives; z++ )
+ {
+ unit = inb_p (padapter->regScratchPad + DALE_CHANNEL_DEVICE_0 + z) & 0x0F;
+ pdev = &padapter->device[z];
+ pdev->byte6 = (UCHAR)(((unit & 1) << 4) | 0xE0);
+ pdev->spigot = (UCHAR)(1 << (unit >> 1));
+ pdev->sectors = DaleSetup.setupDevice[unit].sectors;
+ pdev->heads = DaleSetup.setupDevice[unit].heads;
+ pdev->cylinders = DaleSetup.setupDevice[unit].cylinders;
+ pdev->blocks = DaleSetup.setupDevice[unit].blocks;
+
+ if ( !z )
+ {
+ DiskMirror[0].status = inb_p (padapter->regScratchPad + DALE_RAID_0_STATUS);
+ DiskMirror[1].status = inb_p (padapter->regScratchPad + DALE_RAID_1_STATUS);
+ if ( (DiskMirror[0].signature == SIGNATURE) && (DiskMirror[1].signature == SIGNATURE) &&
+ (DiskMirror[0].pairIdentifier == (DiskMirror[1].pairIdentifier ^ 1)) )
+ {
+ raidon = TRUE;
+ if ( unit > (unit ^ 2) )
+ unit = unit ^ 2;
+ }
+ else
+ raidon = FALSE;
+
+ memcpy (pdev->DiskMirror, DiskMirror, sizeof (DiskMirror));
+ padapter->raidData[0] = &pdev->DiskMirror[0];
+ padapter->raidData[2] = &pdev->DiskMirror[1];
+
+ spigot1 = spigot2 = FALSE;
+ pdev->spigots[0] = 1;
+ pdev->spigots[1] = 2;
+ pdev->lastsectorlba[0] = InlineIdentify (padapter, 1, 0);
+ pdev->lastsectorlba[1] = InlineIdentify (padapter, 2, 0);
+
+ if ( !(pdev->DiskMirror[1].status & UCBF_SURVIVOR) && pdev->lastsectorlba[0] )
+ spigot1 = TRUE;
+ if ( !(pdev->DiskMirror[0].status & UCBF_SURVIVOR) && pdev->lastsectorlba[1] )
+ spigot2 = TRUE;
+ if ( pdev->DiskMirror[0].status & DiskMirror[1].status & UCBF_SURVIVOR )
+ spigot1 = TRUE;
+
+ if ( spigot1 && (pdev->DiskMirror[0].status & UCBF_REBUILD) )
+ InlineReadSignature (padapter, pdev, 0);
+ if ( spigot2 && (pdev->DiskMirror[1].status & UCBF_REBUILD) )
+ InlineReadSignature (padapter, pdev, 1);
+
+ if ( spigot1 && spigot2 && raidon )
+ {
+ pdev->raid = 1;
+ if ( pdev->DiskMirror[0].status & UCBF_REBUILD )
+ pdev->spigot = 2;
+ else
+ pdev->spigot = 1;
+ if ( (pdev->DiskMirror[0].status & UCBF_REBUILD) || (pdev->DiskMirror[1].status & UCBF_REBUILD) )
+ padapter->reconOn = pdev->reconOn = pdev->reconIsStarting = TRUE;
+ }
+ else
+ {
+ if ( spigot1 )
+ {
+ if ( pdev->DiskMirror[0].status & UCBF_REBUILD )
+ goto unregister;
+ pdev->DiskMirror[0].status = UCBF_MIRRORED | UCBF_SURVIVOR;
+ pdev->spigot = 1;
+ }
+ else
+ {
+ if ( pdev->DiskMirror[1].status & UCBF_REBUILD )
+ goto unregister;
+ pdev->DiskMirror[1].status = UCBF_MIRRORED | UCBF_SURVIVOR;
+ pdev->spigot = 2;
+ }
+ if ( DaleSetup.rebootRebuild && raidon )
+ padapter->reconOn = pdev->reconOn = pdev->reconIsStarting = TRUE;
+ }
+
+ if ( raidon )
+ break;
+ }
+ }
+
+ SetupFinish (padapter, "2220", pshost->irq);
+
+ if ( ++Installed < MAXADAPTER )
+ continue;
+ break;
+unregister:;
+ scsi_unregister (pshost);
+ }
+
+ while ( (pcidev = pci_find_device (VENDOR_PSI, DEVICE_BIGD_1, pcidev)) != NULL )
+ {
+ pshost = scsi_register (tpnt, sizeof(ADAPTER2220I));
+ padapter = HOSTDATA(pshost);
+
+ if ( GetRegs (pshost, TRUE, pcidev) )
+ goto unregister1;
+
+ for ( z = 0; z < BIGD_MAXDRIVES; z++ )
+ DiskMirror[z].status = inb_p (padapter->regScratchPad + BIGD_RAID_0_STATUS + z);
+
+ scsi_set_pci_device(pshost, pcidev);
+ pshost->max_id = padapter->numberOfDrives;
+ padapter->failRegister = inb_p (padapter->regScratchPad + BIGD_ALARM_IMAGE);
+ for ( z = 0; z < padapter->numberOfDrives; z++ )
+ {
+ unit = inb_p (padapter->regScratchPad + BIGD_DEVICE_0 + z);
+ pdev = &padapter->device[z];
+ pdev->byte6 = (UCHAR)(((unit & 1) << 4) | 0xE0);
+ pdev->spigot = (UCHAR)(1 << (unit >> 1));
+ pdev->sectors = DaleSetup.setupDevice[unit].sectors;
+ pdev->heads = DaleSetup.setupDevice[unit].heads;
+ pdev->cylinders = DaleSetup.setupDevice[unit].cylinders;
+ pdev->blocks = DaleSetup.setupDevice[unit].blocks;
+
+ if ( (DiskMirror[unit].signature == SIGNATURE) && (DiskMirror[unit ^ 2].signature == SIGNATURE) &&
+ (DiskMirror[unit].pairIdentifier == (DiskMirror[unit ^ 2].pairIdentifier ^ 1)) )
+ {
+ raidon = TRUE;
+ if ( unit > (unit ^ 2) )
+ unit = unit ^ 2;
+ }
+ else
+ raidon = FALSE;
+
+ spigot1 = spigot2 = FALSE;
+ memcpy (&pdev->DiskMirror[0], &DiskMirror[unit], sizeof (DISK_MIRROR));
+ memcpy (&pdev->DiskMirror[1], &DiskMirror[unit ^ 2], sizeof (DISK_MIRROR));
+ padapter->raidData[unit] = &pdev->DiskMirror[0];
+ padapter->raidData[unit ^ 2] = &pdev->DiskMirror[1];
+ pdev->spigots[0] = 1 << (unit >> 1);
+ pdev->spigots[1] = 1 << ((unit ^ 2) >> 1);
+ pdev->deviceID[0] = unit;
+ pdev->deviceID[1] = unit ^ 2;
+ pdev->lastsectorlba[0] = InlineIdentify (padapter, pdev->spigots[0], unit & 1);
+ pdev->lastsectorlba[1] = InlineIdentify (padapter, pdev->spigots[1], unit & 1);
+
+ if ( !(pdev->DiskMirror[1].status & UCBF_SURVIVOR) && pdev->lastsectorlba[0] )
+ spigot1 = TRUE;
+ if ( !(pdev->DiskMirror[0].status & UCBF_SURVIVOR) && pdev->lastsectorlba[1] )
+ spigot2 = TRUE;
+ if ( pdev->DiskMirror[0].status & pdev->DiskMirror[1].status & UCBF_SURVIVOR )
+ spigot1 = TRUE;
+
+ if ( spigot1 && (pdev->DiskMirror[0].status & UCBF_REBUILD) )
+ InlineReadSignature (padapter, pdev, 0);
+ if ( spigot2 && (pdev->DiskMirror[1].status & UCBF_REBUILD) )
+ InlineReadSignature (padapter, pdev, 1);
+
+ if ( spigot1 && spigot2 && raidon )
+ {
+ pdev->raid = 1;
+ if ( pdev->DiskMirror[0].status & UCBF_REBUILD )
+ pdev->spigot = pdev->spigots[1];
+ else
+ pdev->spigot = pdev->spigots[0];
+ if ( (pdev->DiskMirror[0].status & UCBF_REBUILD) || (pdev->DiskMirror[1].status & UCBF_REBUILD) )
+ padapter->reconOn = pdev->reconOn = pdev->reconIsStarting = TRUE;
+ }
+ else
+ {
+ if ( spigot1 )
+ {
+ if ( pdev->DiskMirror[0].status & UCBF_REBUILD )
+ goto unregister1;
+ pdev->DiskMirror[0].status = UCBF_MIRRORED | UCBF_SURVIVOR;
+ pdev->spigot = pdev->spigots[0];
+ }
+ else
+ {
+ if ( pdev->DiskMirror[1].status & UCBF_REBUILD )
+ goto unregister;
+ pdev->DiskMirror[1].status = UCBF_MIRRORED | UCBF_SURVIVOR;
+ pdev->spigot = pdev->spigots[1];
+ }
+ if ( DaleSetup.rebootRebuild && raidon )
+ padapter->reconOn = pdev->reconOn = pdev->reconIsStarting = TRUE;
+ }
+ }
+
+ if ( !padapter->numberOfDrives ) // If no ATA devices then scan ATAPI
+ {
+ unit = 0;
+ for ( spigot1 = 0; spigot1 < 4; spigot1++ )
+ {
+ for ( device = 0; device < 2; device++ )
+ {
+ DEB (printk ("\nPCI2242I: scanning for ID %d ", (spigot1 * 2) + device));
+ pdev = &(padapter->device[(spigot1 * 2) + device]);
+ pdev->byte6 = 0x0A | (device << 4);
+ pdev->spigot = 1 << spigot1;
+ if ( !AtapiReset (padapter, pdev) )
+ {
+ DEB (printk (" Device found "));
+ if ( !AtapiIdentify (padapter, pdev) )
+ {
+ DEB (printk (" Device verified"));
+ unit++;
+ continue;
+ }
+ }
+ pdev->spigot = pdev->byte6 = 0;
+ }
+ }
+
+ if ( unit )
+ {
+ padapter->atapi = TRUE;
+ padapter->timingAddress = DALE_DATA_MODE3;
+ outw_p (0x0900, padapter->regIrqControl); // Turn our interrupts on
+ outw_p (0x0C41, padapter->regDmaMode - 1); // setup for 16 bits, ready enabled, done IRQ enabled, no incriment
+ outb_p (0xFF, padapter->regFail); // all fail lights and alarm off
+ pshost->max_id = 8;
+ }
+ }
+ SetupFinish (padapter, "2240", pshost->irq);
+
+ if ( ++Installed < MAXADAPTER )
+ continue;
+ break;
+unregister1:;
+ scsi_unregister (pshost);
+ }
+
+ NumAdapters = Installed;
+ return Installed;
+ }
+/****************************************************************
+ * Name: Pci2220i_Abort
+ *
+ * Description: Process the Abort command from the SCSI manager.
+ *
+ * Parameters: SCpnt - Pointer to SCSI command structure.
+ *
+ * Returns: Allways snooze.
+ *
+ ****************************************************************/
+int Pci2220i_Abort (Scsi_Cmnd *SCpnt)
+ {
+ PADAPTER2220I padapter = HOSTDATA(SCpnt->device->host); // Pointer to adapter control structure
+ POUR_DEVICE pdev = &padapter->device[SCpnt->device->id];// Pointer to device information
+
+ if ( !padapter->SCpnt )
+ return SCSI_ABORT_NOT_RUNNING;
+
+ if ( padapter->atapi )
+ {
+ if ( AtapiReset (padapter, pdev) )
+ return SCSI_ABORT_ERROR;
+ OpDone (padapter, DID_ABORT << 16);
+ return SCSI_ABORT_SUCCESS;
+ }
+ return SCSI_ABORT_SNOOZE;
+ }
+/****************************************************************
+ * Name: Pci2220i_Reset
+ *
+ * Description: Process the Reset command from the SCSI manager.
+ *
+ * Parameters: SCpnt - Pointer to SCSI command structure.
+ * flags - Flags about the reset command
+ *
+ * Returns: No active command at this time, so this means
+ * that each time we got some kind of response the
+ * last time through. Tell the mid-level code to
+ * request sense information in order to decide what
+ * to do next.
+ *
+ ****************************************************************/
+int Pci2220i_Reset (Scsi_Cmnd *SCpnt, unsigned int reset_flags)
+ {
+ PADAPTER2220I padapter = HOSTDATA(SCpnt->device->host); // Pointer to adapter control structure
+ POUR_DEVICE pdev = &padapter->device[SCpnt->device->id];// Pointer to device information
+
+ if ( padapter->atapi )
+ {
+ if ( AtapiReset (padapter, pdev) )
+ return SCSI_RESET_ERROR;
+ return SCSI_RESET_SUCCESS;
+ }
+ return SCSI_RESET_PUNT;
+ }
+/****************************************************************
+ * Name: Pci2220i_Release
+ *
+ * Description: Release resources allocated for a single each adapter.
+ *
+ * Parameters: pshost - Pointer to SCSI command structure.
+ *
+ * Returns: zero.
+ *
+ ****************************************************************/
+int Pci2220i_Release (struct Scsi_Host *pshost)
+ {
+ PADAPTER2220I padapter = HOSTDATA (pshost);
+ USHORT z;
+
+ if ( padapter->reconOn )
+ {
+ padapter->reconOn = FALSE; // shut down the hot reconstruct
+ if ( padapter->reconPhase )
+ mdelay (300);
+ if ( padapter->reconTimer.data ) // is the timer running?
+ {
+ del_timer (&padapter->reconTimer);
+ padapter->reconTimer.data = 0;
+ }
+ }
+
+ // save RAID status on the board
+ if ( padapter->bigD )
+ {
+ outb_p (padapter->failRegister, padapter->regScratchPad + BIGD_ALARM_IMAGE);
+ for ( z = 0; z < BIGD_MAXDRIVES; z++ )
+ {
+ if ( padapter->raidData )
+ outb_p (padapter->raidData[z]->status, padapter->regScratchPad + BIGD_RAID_0_STATUS + z);
+ else
+ outb_p (0, padapter->regScratchPad + BIGD_RAID_0_STATUS);
+ }
+ }
+ else
+ {
+ outb_p (padapter->device[0].DiskMirror[0].status, padapter->regScratchPad + DALE_RAID_0_STATUS);
+ outb_p (padapter->device[0].DiskMirror[1].status, padapter->regScratchPad + DALE_RAID_1_STATUS);
+ }
+
+ if ( padapter->irqOwned )
+ free_irq (pshost->irq, padapter);
+ release_region (pshost->io_port, pshost->n_io_port);
+ if ( padapter->numberOfDrives )
+ pci_free_consistent (padapter->pcidev, SECTORSXFER * BYTES_PER_SECTOR, padapter->kBuffer, padapter->kBufferDma);
+ else
+ pci_free_consistent (padapter->pcidev, ATAPI_TRANSFER, padapter->kBuffer, padapter->kBufferDma);
+ scsi_unregister(pshost);
+ return 0;
+ }
+
+/****************************************************************
+ * Name: Pci2220i_BiosParam
+ *
+ * Description: Process the biosparam request from the SCSI manager to
+ * return C/H/S data.
+ *
+ * Parameters: disk - Pointer to SCSI disk structure.
+ * dev - Major/minor number from kernel.
+ * geom - Pointer to integer array to place geometry data.
+ *
+ * Returns: zero.
+ *
+ ****************************************************************/
+int Pci2220i_BiosParam (struct scsi_device *sdev, struct block_device *dev,
+ sector_t capacity, int geom[])
+ {
+ POUR_DEVICE pdev;
+
+ if ( !(HOSTDATA(sdev->host))->atapi )
+ {
+ pdev = &(HOSTDATA(sdev->host)->device[sdev->id]);
+
+ geom[0] = pdev->heads;
+ geom[1] = pdev->sectors;
+ geom[2] = pdev->cylinders;
+ }
+ return 0;
+ }
+
+MODULE_LICENSE("Dual BSD/GPL");
+
+static Scsi_Host_Template driver_template = {
+ .proc_name = "pci2220i",
+ .name = "PCI-2220I/PCI-2240I",
+ .detect = Pci2220i_Detect,
+ .release = Pci2220i_Release,
+ .queuecommand = Pci2220i_QueueCommand,
+ .abort = Pci2220i_Abort,
+ .reset = Pci2220i_Reset,
+ .bios_param = Pci2220i_BiosParam,
+ .can_queue = 1,
+ .this_id = -1,
+ .sg_tablesize = SG_ALL,
+ .cmd_per_lun = 1,
+ .use_clustering = DISABLE_CLUSTERING,
+};
+#include "scsi_module.c"
