/**************************************************************************** * 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 * ****************************************************************************/ //#define DEBUG 1 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "scsi.h" #include "hosts.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; 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 (&io_request_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 (&io_request_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; 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 (&io_request_lock, flags); padapter = (PADAPTER2220I)data; 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 compatability if (!pid->SupportLBA || (pid->NumSectorsPerInt < SECTORSXFER) || !pid->Valid_64_70 ) { DEB (printk ("\npci2220i: sub 3")); break; } // test PIO/bus matering mode compatability 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 (&io_request_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 void 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; /* * Disable interrupts, if they aren't already disabled and acquire * the I/O spinlock. */ spin_lock_irqsave (&io_request_lock, flags); // 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 irq_return; } 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:; /* * 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 (&io_request_lock, flags); } /**************************************************************** * 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->host); // Pointer to adapter control structure POUR_DEVICE pdev = &padapter->device[SCpnt->target];// 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->target, SCpnt->lun, *cdb)); padapter->pdev = pdev; if ( !pdev->byte6 || SCpnt->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->target >= padapter->numberOfDrives) || SCpnt->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; } static void internal_done(Scsi_Cmnd *SCpnt) { SCpnt->SCp.Status++; } /**************************************************************** * Name: Pci2220i_Command * * Description: Process a command from the SCSI manager. * * Parameters: SCpnt - Pointer to SCSI command structure. * * Returns: Status code. * ****************************************************************/ int Pci2220i_Command (Scsi_Cmnd *SCpnt) { Pci2220i_QueueCommand (SCpnt, internal_done); SCpnt->SCp.Status = 0; while (!SCpnt->SCp.Status) barrier (); return SCpnt->result; } /**************************************************************** * 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 interupt 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; if ( !pci_present () ) { printk ("pci2220i: PCI BIOS not present\n"); return 0; } 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_pci_device(pshost, pcidev); 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->host); // Pointer to adapter control structure POUR_DEVICE pdev = &padapter->device[SCpnt->target];// 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->host); // Pointer to adapter control structure POUR_DEVICE pdev = &padapter->device[SCpnt->target];// 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; } #include "sd.h" /**************************************************************** * 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 (Scsi_Disk *disk, kdev_t dev, int geom[]) { POUR_DEVICE pdev; if ( !(HOSTDATA(disk->device->host))->atapi ) { pdev = &(HOSTDATA(disk->device->host)->device[disk->device->id]); geom[0] = pdev->heads; geom[1] = pdev->sectors; geom[2] = pdev->cylinders; } return 0; } MODULE_LICENSE("Dual BSD/GPL"); /* Eventually this will go into an include file, but this will be later */ static Scsi_Host_Template driver_template = PCI2220I; #include "scsi_module.c"