q3k/linux
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity
linux/drivers/scsi/pci2000.c
be7db055dd [PATCH] remove old scsi data direction macros 
these have been wrappers for the generic dma direction bits since 2.5.x.
This patch converts the few remaining drivers and removes the macros.

Arjan noticed there's some hunk in here that shouldn't.  Updated patch
below:

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-04-18 13:49:58 -05:00

836 lines
24 KiB
C
Raw Blame History

/****************************************************************************
* Perceptive Solutions, Inc. PCI-2000 device driver for Linux.
*
* pci2000.c - Linux Host Driver for PCI-2000 IntelliCache SCSI 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 Jan-21-1999
* - Fixed sign on message to reflect proper controller name.
* - Added support for RAID status monitoring and control.
*
* Revisions 1.11 Mar-22-1999
* - Fixed control timeout to not lock up the entire system if
* controller goes offline completely.
*
* Revisions 1.12 Mar-26-1999
* - Fixed spinlock and PCI configuration.
*
* Revisions 1.20 Mar-27-2000
* - Added support for dynamic DMA
*
****************************************************************************/
#define PCI2000_VERSION "1.20"
#include <linux/blkdev.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/string.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/spinlock.h>
#include <asm/dma.h>
#include <asm/system.h>
#include <asm/io.h>
#include "scsi.h"
#include <scsi/scsi_host.h>
#include "pci2000.h"
#include "psi_roy.h"
//#define DEBUG 1
#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
typedef struct
{
unsigned int address;
unsigned int length;
} SCATGATH, *PSCATGATH;
typedef struct
{
Scsi_Cmnd *SCpnt;
PSCATGATH scatGath;
dma_addr_t scatGathDma;
UCHAR *cdb;
dma_addr_t cdbDma;
UCHAR tag;
} DEV2000, *PDEV2000;
typedef struct
{
ULONG basePort;
ULONG mb0;
ULONG mb1;
ULONG mb2;
ULONG mb3;
ULONG mb4;
ULONG cmd;
ULONG tag;
ULONG irqOwned;
struct pci_dev *pdev;
DEV2000 dev[MAX_BUS][MAX_UNITS];
} ADAPTER2000, *PADAPTER2000;
#define HOSTDATA(host) ((PADAPTER2000)&host->hostdata)
#define consistentLen (MAX_BUS * MAX_UNITS * (16 * sizeof (SCATGATH) + MAX_COMMAND_SIZE))
static struct Scsi_Host *PsiHost[MAXADAPTER] = {NULL,}; // One for each adapter
static int NumAdapters = 0;
/****************************************************************
* Name: WaitReady :LOCAL
*
* Description: Wait for controller ready.
*
* Parameters: padapter - Pointer adapter data structure.
*
* Returns: TRUE on not ready.
*
****************************************************************/
static int WaitReady (PADAPTER2000 padapter)
{
ULONG z;
for ( z = 0; z < (TIMEOUT_COMMAND * 4); z++ )
{
if ( !inb_p (padapter->cmd) )
return FALSE;
udelay (250);
};
return TRUE;
}
/****************************************************************
* Name: WaitReadyLong :LOCAL
*
* Description: Wait for controller ready.
*
* Parameters: padapter - Pointer adapter data structure.
*
* Returns: TRUE on not ready.
*
****************************************************************/
static int WaitReadyLong (PADAPTER2000 padapter)
{
ULONG z;
for ( z = 0; z < (5000 * 4); z++ )
{
if ( !inb_p (padapter->cmd) )
return FALSE;
udelay (250);
};
return TRUE;
}
/****************************************************************
* Name: OpDone :LOCAL
*
* Description: Clean up operation and issue done to caller.
*
* Parameters: SCpnt - Pointer to SCSI command structure.
* status - Caller status.
*
* Returns: Nothing.
*
****************************************************************/
static void OpDone (Scsi_Cmnd *SCpnt, ULONG status)
{
SCpnt->result = status;
SCpnt->scsi_done (SCpnt);
}
/****************************************************************
* Name: Command :LOCAL
*
* Description: Issue queued command to the PCI-2000.
*
* Parameters: padapter - Pointer to adapter information structure.
* cmd - PCI-2000 command byte.
*
* Returns: Non-zero command tag if operation is accepted.
*
****************************************************************/
static UCHAR Command (PADAPTER2000 padapter, UCHAR cmd)
{
outb_p (cmd, padapter->cmd);
if ( WaitReady (padapter) )
return 0;
if ( inw_p (padapter->mb0) )
return 0;
return inb_p (padapter->mb1);
}
/****************************************************************
* Name: BuildSgList :LOCAL
*
* Description: Build the scatter gather list for controller.
*
* Parameters: SCpnt - Pointer to SCSI command structure.
* padapter - Pointer to adapter information structure.
* pdev - Pointer to adapter device structure.
*
* Returns: Non-zero in not scatter gather.
*
****************************************************************/
static int BuildSgList (Scsi_Cmnd *SCpnt, PADAPTER2000 padapter, PDEV2000 pdev)
{
int z;
int zc;
struct scatterlist *sg;
if ( SCpnt->use_sg )
{
sg = (struct scatterlist *)SCpnt->request_buffer;
zc = pci_map_sg (padapter->pdev, sg, SCpnt->use_sg, SCpnt->sc_data_direction);
for ( z = 0; z < zc; z++ )
{
pdev->scatGath[z].address = cpu_to_le32 (sg_dma_address (sg));
pdev->scatGath[z].length = cpu_to_le32 (sg_dma_len (sg++));
}
outl (pdev->scatGathDma, padapter->mb2);
outl ((zc << 24) | SCpnt->request_bufflen, padapter->mb3);
return FALSE;
}
if ( !SCpnt->request_bufflen)
{
outl (0, padapter->mb2);
outl (0, padapter->mb3);
return TRUE;
}
SCpnt->SCp.have_data_in = pci_map_single (padapter->pdev,
SCpnt->request_buffer, SCpnt->request_bufflen,
SCpnt->sc_data_direction);
outl (SCpnt->SCp.have_data_in, padapter->mb2);
outl (SCpnt->request_bufflen, padapter->mb3);
return TRUE;
}
/*********************************************************************
* Name: PsiRaidCmd
*
* Description: Execute a simple command.
*
* Parameters: padapter - Pointer to adapter control structure.
* cmd - Roy command byte.
*
* Returns: Return error status.
*
********************************************************************/
static int PsiRaidCmd (PADAPTER2000 padapter, char cmd)
{
if ( WaitReady (padapter) ) // test for command register ready
return DID_TIME_OUT;
outb_p (cmd, padapter->cmd); // issue command
if ( WaitReadyLong (padapter) ) // wait for adapter ready
return DID_TIME_OUT;
return DID_OK;
}
/****************************************************************
* Name: Irq_Handler :LOCAL
*
* Description: Interrupt handler.
*
* Parameters: irq - Hardware IRQ number.
* dev_id -
* regs -
*
* Returns: TRUE if drive is not ready in time.
*
****************************************************************/
static irqreturn_t Irq_Handler (int irq, void *dev_id, struct pt_regs *regs)
{
struct Scsi_Host *shost = NULL; // Pointer to host data block
PADAPTER2000 padapter; // Pointer to adapter control structure
PDEV2000 pdev;
Scsi_Cmnd *SCpnt;
UCHAR tag = 0;
UCHAR tag0;
ULONG error;
int pun;
int bus;
int z;
unsigned long flags;
int handled = 0;
DEB(printk ("\npci2000 received interrupt "));
for ( z = 0; z < NumAdapters; z++ ) // scan for interrupt to process
{
if ( PsiHost[z]->irq == (UCHAR)(irq & 0xFF) )
{
tag = inb_p (HOSTDATA(PsiHost[z])->tag);
if ( tag )
{
shost = PsiHost[z];
break;
}
}
}
if ( !shost )
{
DEB (printk ("\npci2000: not my interrupt"));
goto out;
}
handled = 1;
spin_lock_irqsave(shost->host_lock, flags);
padapter = HOSTDATA(shost);
tag0 = tag & 0x7F; // mask off the error bit
for ( bus = 0; bus < MAX_BUS; bus++ ) // scan the busses
{
for ( pun = 0; pun < MAX_UNITS; pun++ ) // scan the targets
{
pdev = &padapter->dev[bus][pun];
if ( !pdev->tag )
continue;
if ( pdev->tag == tag0 ) // is this it?
{
pdev->tag = 0;
SCpnt = pdev->SCpnt;
goto unmapProceed;
}
}
}
outb_p (0xFF, padapter->tag); // clear the op interrupt
outb_p (CMD_DONE, padapter->cmd); // complete the op
goto irq_return; // done, but, with what?
unmapProceed:;
if ( !bus )
{
switch ( SCpnt->cmnd[0] )
{
case SCSIOP_TEST_UNIT_READY:
pci_unmap_single (padapter->pdev, SCpnt->SCp.have_data_in, sizeof (SCpnt->sense_buffer), PCI_DMA_FROMDEVICE);
goto irqProceed;
case SCSIOP_READ_CAPACITY:
pci_unmap_single (padapter->pdev, SCpnt->SCp.have_data_in, 8, PCI_DMA_FROMDEVICE);
goto irqProceed;
case SCSIOP_VERIFY:
case SCSIOP_START_STOP_UNIT:
case SCSIOP_MEDIUM_REMOVAL:
goto irqProceed;
}
}
if ( SCpnt->SCp.have_data_in )
pci_unmap_single (padapter->pdev, SCpnt->SCp.have_data_in, SCpnt->request_bufflen, SCpnt->sc_data_direction);
else
{
if ( SCpnt->use_sg )
pci_unmap_sg (padapter->pdev, (struct scatterlist *)SCpnt->request_buffer, SCpnt->use_sg, SCpnt->sc_data_direction);
}
irqProceed:;
if ( tag & ERR08_TAGGED ) // is there an error here?
{
if ( WaitReady (padapter) )
{
OpDone (SCpnt, DID_TIME_OUT << 16);
goto irq_return;
}
outb_p (tag0, padapter->mb0); // get real error code
outb_p (CMD_ERROR, padapter->cmd);
if ( WaitReady (padapter) ) // wait for controller to suck up the op
{
OpDone (SCpnt, DID_TIME_OUT << 16);
goto irq_return;
}
error = inl (padapter->mb0); // get error data
outb_p (0xFF, padapter->tag); // clear the op interrupt
outb_p (CMD_DONE, padapter->cmd); // complete the op
DEB (printk ("status: %lX ", error));
if ( error == 0x00020002 ) // is this error a check condition?
{
if ( bus ) // are we doint SCSI commands?
{
OpDone (SCpnt, (DID_OK << 16) | 2);
goto irq_return;
}
if ( *SCpnt->cmnd == SCSIOP_TEST_UNIT_READY )
OpDone (SCpnt, (DRIVER_SENSE << 24) | (DID_OK << 16) | 2); // test caller we have sense data too
else
OpDone (SCpnt, DID_ERROR << 16);
goto irq_return;
}
OpDone (SCpnt, DID_ERROR << 16);
goto irq_return;
}
outb_p (0xFF, padapter->tag); // clear the op interrupt
outb_p (CMD_DONE, padapter->cmd); // complete the op
OpDone (SCpnt, DID_OK << 16);
irq_return:
spin_unlock_irqrestore(shost->host_lock, flags);
out:
return IRQ_RETVAL(handled);
}
/****************************************************************
* Name: Pci2000_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 Pci2000_QueueCommand (Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *))
{
UCHAR *cdb = (UCHAR *)SCpnt->cmnd; // Pointer to SCSI CDB
PADAPTER2000 padapter = HOSTDATA(SCpnt->device->host); // Pointer to adapter control structure
int rc = -1; // command return code
UCHAR bus = SCpnt->device->channel;
UCHAR pun = SCpnt->device->id;
UCHAR lun = SCpnt->device->lun;
UCHAR cmd;
PDEV2000 pdev = &padapter->dev[bus][pun];
if ( !done )
{
printk("pci2000_queuecommand: %02X: done can't be NULL\n", *cdb);
return 0;
}
SCpnt->scsi_done = done;
SCpnt->SCp.have_data_in = 0;
pdev->SCpnt = SCpnt; // Save this command data
if ( WaitReady (padapter) )
{
rc = DID_ERROR;
goto finished;
}
outw_p (pun | (lun << 8), padapter->mb0);
if ( bus )
{
DEB (if(*cdb) printk ("\nCDB: %X- %X %X %X %X %X %X %X %X %X %X ", SCpnt->cmd_len, cdb[0], cdb[1], cdb[2], cdb[3], cdb[4], cdb[5], cdb[6], cdb[7], cdb[8], cdb[9]));
DEB (if(*cdb) printk ("\ntimeout_per_command: %d, timeout_total: %d, timeout: %d", SCpnt->timeout_per_command,
SCpnt->timeout_total, SCpnt->timeout));
outl (SCpnt->timeout_per_command, padapter->mb1);
outb_p (CMD_SCSI_TIMEOUT, padapter->cmd);
if ( WaitReady (padapter) )
{
rc = DID_ERROR;
goto finished;
}
outw_p (pun | (lun << 8), padapter->mb0);
outw_p (SCpnt->cmd_len << 8, padapter->mb0 + 2);
memcpy (pdev->cdb, cdb, MAX_COMMAND_SIZE);
outl (pdev->cdbDma, padapter->mb1);
if ( BuildSgList (SCpnt, padapter, pdev) )
cmd = CMD_SCSI_THRU;
else
cmd = CMD_SCSI_THRU_SG;
if ( (pdev->tag = Command (padapter, cmd)) == 0 )
rc = DID_TIME_OUT;
goto finished;
}
else
{
if ( lun )
{
rc = DID_BAD_TARGET;
goto finished;
}
}
switch ( *cdb )
{
case SCSIOP_INQUIRY: // inquiry CDB
if ( cdb[2] == SC_MY_RAID )
{
switch ( cdb[3] )
{
case MY_SCSI_REBUILD:
OpDone (SCpnt, PsiRaidCmd (padapter, CMD_RAID_REBUILD) << 16);
return 0;
case MY_SCSI_ALARMMUTE:
OpDone (SCpnt, PsiRaidCmd (padapter, CMD_RAID_MUTE) << 16);
return 0;
case MY_SCSI_DEMOFAIL:
OpDone (SCpnt, PsiRaidCmd (padapter, CMD_RAID_FAIL) << 16);
return 0;
default:
if ( SCpnt->use_sg )
{
rc = DID_ERROR;
goto finished;
}
else
{
SCpnt->SCp.have_data_in = pci_map_single (padapter->pdev, SCpnt->request_buffer, SCpnt->request_bufflen,
SCpnt->sc_data_direction);
outl (SCpnt->SCp.have_data_in, padapter->mb2);
}
outl (cdb[5], padapter->mb0);
outl (cdb[3], padapter->mb3);
cmd = CMD_DASD_RAID_RQ;
break;
}
break;
}
if ( SCpnt->use_sg )
{
SCpnt->SCp.have_data_in = pci_map_single (padapter->pdev,
((struct scatterlist *)SCpnt->request_buffer)->address,
SCpnt->request_bufflen,
SCpnt->sc_data_direction);
}
else
{
SCpnt->SCp.have_data_in = pci_map_single (padapter->pdev, SCpnt->request_buffer,
SCpnt->request_bufflen,
SCpnt->sc_data_direction);
}
outl (SCpnt->SCp.have_data_in, padapter->mb2);
outl (SCpnt->request_bufflen, padapter->mb3);
cmd = CMD_DASD_SCSI_INQ;
break;
case SCSIOP_TEST_UNIT_READY: // test unit ready CDB
SCpnt->SCp.have_data_in = pci_map_single (padapter->pdev, SCpnt->sense_buffer, sizeof (SCpnt->sense_buffer), PCI_DMA_FROMDEVICE);
outl (SCpnt->SCp.have_data_in, padapter->mb2);
outl (sizeof (SCpnt->sense_buffer), padapter->mb3);
cmd = CMD_TEST_READY;
break;
case SCSIOP_READ_CAPACITY: // read capacity CDB
if ( SCpnt->use_sg )
{
SCpnt->SCp.have_data_in = pci_map_single (padapter->pdev, ((struct scatterlist *)(SCpnt->request_buffer))->address,
8, PCI_DMA_FROMDEVICE);
}
else
SCpnt->SCp.have_data_in = pci_map_single (padapter->pdev, SCpnt->request_buffer, 8, PCI_DMA_FROMDEVICE);
outl (SCpnt->SCp.have_data_in, padapter->mb2);
outl (8, padapter->mb3);
cmd = CMD_DASD_CAP;
break;
case SCSIOP_VERIFY: // verify CDB
outw_p ((USHORT)cdb[8] | ((USHORT)cdb[7] << 8), padapter->mb0 + 2);
outl (XSCSI2LONG (&cdb[2]), padapter->mb1);
cmd = CMD_READ_SG;
break;
case SCSIOP_READ: // read10 CDB
outw_p ((USHORT)cdb[8] | ((USHORT)cdb[7] << 8), padapter->mb0 + 2);
outl (XSCSI2LONG (&cdb[2]), padapter->mb1);
if ( BuildSgList (SCpnt, padapter, pdev) )
cmd = CMD_READ;
else
cmd = CMD_READ_SG;
break;
case SCSIOP_READ6: // read6 CDB
outw_p (cdb[4], padapter->mb0 + 2);
outl ((SCSI2LONG (&cdb[1])) & 0x001FFFFF, padapter->mb1);
if ( BuildSgList (SCpnt, padapter, pdev) )
cmd = CMD_READ;
else
cmd = CMD_READ_SG;
break;
case SCSIOP_WRITE: // write10 CDB
outw_p ((USHORT)cdb[8] | ((USHORT)cdb[7] << 8), padapter->mb0 + 2);
outl (XSCSI2LONG (&cdb[2]), padapter->mb1);
if ( BuildSgList (SCpnt, padapter, pdev) )
cmd = CMD_WRITE;
else
cmd = CMD_WRITE_SG;
break;
case SCSIOP_WRITE6: // write6 CDB
outw_p (cdb[4], padapter->mb0 + 2);
outl ((SCSI2LONG (&cdb[1])) & 0x001FFFFF, padapter->mb1);
if ( BuildSgList (SCpnt, padapter, pdev) )
cmd = CMD_WRITE;
else
cmd = CMD_WRITE_SG;
break;
case SCSIOP_START_STOP_UNIT:
cmd = CMD_EJECT_MEDIA;
break;
case SCSIOP_MEDIUM_REMOVAL:
switch ( cdb[4] )
{
case 0:
cmd = CMD_UNLOCK_DOOR;
break;
case 1:
cmd = CMD_LOCK_DOOR;
break;
default:
cmd = 0;
break;
}
if ( cmd )
break;
default:
DEB (printk ("pci2000_queuecommand: Unsupported command %02X\n", *cdb));
OpDone (SCpnt, DID_ERROR << 16);
return 0;
}
if ( (pdev->tag = Command (padapter, cmd)) == 0 )
rc = DID_TIME_OUT;
finished:;
if ( rc != -1 )
OpDone (SCpnt, rc << 16);
return 0;
}
/****************************************************************
* Name: Pci2000_Detect
*
* Description: Detect and initialize our boards.
*
* Parameters: tpnt - Pointer to SCSI host template structure.
*
* Returns: Number of adapters installed.
*
****************************************************************/
int Pci2000_Detect (Scsi_Host_Template *tpnt)
{
int found = 0;
int installed = 0;
struct Scsi_Host *pshost;
PADAPTER2000 padapter;
int z, zz;
int setirq;
struct pci_dev *pdev = NULL;
UCHAR *consistent;
dma_addr_t consistentDma;
while ( (pdev = pci_find_device (VENDOR_PSI, DEVICE_ROY_1, pdev)) != NULL )
{
if (pci_enable_device(pdev))
continue;
pshost = scsi_register (tpnt, sizeof(ADAPTER2000));
if(pshost == NULL)
continue;
padapter = HOSTDATA(pshost);
padapter->basePort = pci_resource_start (pdev, 1);
DEB (printk ("\nBase Regs = %#04X", padapter->basePort)); // get the base I/O port address
padapter->mb0 = padapter->basePort + RTR_MAILBOX; // get the 32 bit mail boxes
padapter->mb1 = padapter->basePort + RTR_MAILBOX + 4;
padapter->mb2 = padapter->basePort + RTR_MAILBOX + 8;
padapter->mb3 = padapter->basePort + RTR_MAILBOX + 12;
padapter->mb4 = padapter->basePort + RTR_MAILBOX + 16;
padapter->cmd = padapter->basePort + RTR_LOCAL_DOORBELL; // command register
padapter->tag = padapter->basePort + RTR_PCI_DOORBELL; // tag/response register
padapter->pdev = pdev;
if ( WaitReady (padapter) )
goto unregister;
outb_p (0x84, padapter->mb0);
outb_p (CMD_SPECIFY, padapter->cmd);
if ( WaitReady (padapter) )
goto unregister;
consistent = pci_alloc_consistent (pdev, consistentLen, &consistentDma);
if ( !consistent )
{
printk ("Unable to allocate DMA memory for PCI-2000 controller.\n");
goto unregister;
}
scsi_set_device(pshost, &pdev->dev);
pshost->irq = pdev->irq;
setirq = 1;
padapter->irqOwned = 0;
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, "pci2000", padapter) < 0 )
{
if ( request_irq (pshost->irq, Irq_Handler, SA_INTERRUPT | SA_SHIRQ, "pci2000", padapter) < 0 )
{
printk ("Unable to allocate IRQ for PCI-2000 controller.\n");
pci_free_consistent (pdev, consistentLen, consistent, consistentDma);
goto unregister;
}
}
padapter->irqOwned = pshost->irq; // set IRQ as owned
}
PsiHost[installed] = pshost; // save SCSI_HOST pointer
pshost->io_port = padapter->basePort;
pshost->n_io_port = 0xFF;
pshost->unique_id = padapter->basePort;
pshost->max_id = 16;
pshost->max_channel = 1;
for ( zz = 0; zz < MAX_BUS; zz++ )
for ( z = 0; z < MAX_UNITS; z++ )
{
padapter->dev[zz][z].tag = 0;
padapter->dev[zz][z].scatGath = (PSCATGATH)consistent;
padapter->dev[zz][z].scatGathDma = consistentDma;
consistent += 16 * sizeof (SCATGATH);
consistentDma += 16 * sizeof (SCATGATH);
padapter->dev[zz][z].cdb = (UCHAR *)consistent;
padapter->dev[zz][z].cdbDma = consistentDma;
consistent += MAX_COMMAND_SIZE;
consistentDma += MAX_COMMAND_SIZE;
}
printk("\nPSI-2000 Intelligent Storage SCSI CONTROLLER: at I/O = %lX IRQ = %d\n", padapter->basePort, pshost->irq);
printk("Version %s, Compiled %s %s\n\n", PCI2000_VERSION, __DATE__, __TIME__);
found++;
if ( ++installed < MAXADAPTER )
continue;
break;
unregister:;
scsi_unregister (pshost);
found++;
}
NumAdapters = installed;
return installed;
}
/****************************************************************
* Name: Pci2000_Abort
*
* Description: Process the Abort command from the SCSI manager.
*
* Parameters: SCpnt - Pointer to SCSI command structure.
*
* Returns: Allways snooze.
*
****************************************************************/
int Pci2000_Abort (Scsi_Cmnd *SCpnt)
{
DEB (printk ("pci2000_abort\n"));
return SCSI_ABORT_SNOOZE;
}
/****************************************************************
* Name: Pci2000_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 Pci2000_Reset (Scsi_Cmnd *SCpnt, unsigned int reset_flags)
{
return SCSI_RESET_PUNT;
}
/****************************************************************
* Name: Pci2000_Release
*
* Description: Release resources allocated for a single each adapter.
*
* Parameters: pshost - Pointer to SCSI command structure.
*
* Returns: zero.
*
****************************************************************/
int Pci2000_Release (struct Scsi_Host *pshost)
{
PADAPTER2000 padapter = HOSTDATA (pshost);
if ( padapter->irqOwned )
free_irq (pshost->irq, padapter);
pci_free_consistent (padapter->pdev, consistentLen, padapter->dev[0][0].scatGath, padapter->dev[0][0].scatGathDma);
release_region (pshost->io_port, pshost->n_io_port);
scsi_unregister(pshost);
return 0;
}
/****************************************************************
* Name: Pci2000_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 Pci2000_BiosParam (struct scsi_device *sdev, struct block_device *dev,
sector_t capacity, int geom[])
{
PADAPTER2000 padapter;
padapter = HOSTDATA(sdev->host);
if ( WaitReady (padapter) )
return 0;
outb_p (sdev->id, padapter->mb0);
outb_p (CMD_GET_PARMS, padapter->cmd);
if ( WaitReady (padapter) )
return 0;
geom[0] = inb_p (padapter->mb2 + 3);
geom[1] = inb_p (padapter->mb2 + 2);
geom[2] = inw_p (padapter->mb2);
return 0;
}
MODULE_LICENSE("Dual BSD/GPL");
static Scsi_Host_Template driver_template = {
.proc_name = "pci2000",
.name = "PCI-2000 SCSI Intelligent Disk Controller",
.detect = Pci2000_Detect,
.release = Pci2000_Release,
.queuecommand = Pci2000_QueueCommand,
.abort = Pci2000_Abort,
.reset = Pci2000_Reset,
.bios_param = Pci2000_BiosParam,
.can_queue = 16,
.this_id = -1,
.sg_tablesize = 16,
.cmd_per_lun = 1,
.use_clustering = DISABLE_CLUSTERING,
};
#include "scsi_module.c"
Reference in a new issue View git blame Copy permalink