diff options
Diffstat (limited to 'drivers/scsi/pci2220i.c')
| -rw-r--r-- | drivers/scsi/pci2220i.c | 2915 |
1 files changed, 2915 insertions, 0 deletions
diff --git a/drivers/scsi/pci2220i.c b/drivers/scsi/pci2220i.c new file mode 100644 index 00000000000..e395e420315 --- /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" |