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2822 2823 2824 2825 2826 2827 2828 2829 2830 2831 2832 2833 2834 2835 2836 2837 2838 2839 2840 2841 2842 2843 2844 2845 2846 2847 2848 2849 2850 2851 2852 2853 2854 2855 2856 2857 2858 2859 2860 2861 2862 2863 2864 2865 2866 2867 2868 2869 2870 2871 2872 2873 2874 2875 2876 2877 2878 2879 2880 2881 2882 2883 2884 2885 2886 2887 2888 2889 2890 2891 2892 2893 2894 2895 2896 2897 2898 2899 2900 2901 2902 2903 2904 2905 2906 2907 2908 2909 2910 2911 2912 2913 2914 2915 2916 2917 2918 2919 2920 2921 2922 2923 2924 2925 2926 2927 2928 2929 | /**************************************************************************** * 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 <linux/module.h> #include <linux/kernel.h> #include <linux/types.h> #include <linux/string.h> #include <linux/malloc.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/kdev_t.h> #include <linux/blk.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 "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 Interupt hanlder 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; 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); 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; } /* Eventually this will go into an include file, but this will be later */ static Scsi_Host_Template driver_template = PCI2220I; #include "scsi_module.c" |