diff options
Diffstat (limited to 'drivers/scsi/pci2000.c')
| -rw-r--r-- | drivers/scsi/pci2000.c | 834 |
1 files changed, 834 insertions, 0 deletions
diff --git a/drivers/scsi/pci2000.c b/drivers/scsi/pci2000.c new file mode 100644 index 000000000000..60ce1cce9497 --- /dev/null +++ b/drivers/scsi/pci2000.c @@ -0,0 +1,834 @@ +/**************************************************************************** + * 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, scsi_to_pci_dma_dir (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, scsi_to_pci_dma_dir (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, scsi_to_pci_dma_dir(SCpnt->sc_data_direction)); + else + { + if ( SCpnt->use_sg ) + pci_unmap_sg (padapter->pdev, (struct scatterlist *)SCpnt->request_buffer, SCpnt->use_sg, scsi_to_pci_dma_dir(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, internal_timout: %d", SCpnt->timeout_per_command, + SCpnt->timeout_total, SCpnt->timeout, SCpnt->internal_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, + scsi_to_pci_dma_dir(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, + scsi_to_pci_dma_dir (SCpnt->sc_data_direction)); + } + else + { + SCpnt->SCp.have_data_in = pci_map_single (padapter->pdev, SCpnt->request_buffer, + SCpnt->request_bufflen, + scsi_to_pci_dma_dir (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" |
