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Commit 9f0b7b10 authored by Doug Ledford's avatar Doug Ledford
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Initial initio a100 driver DMA mapping changes + selected cleanups 

* 06/25/02 Doug Ledford <dledford@redhat.com> - v1.02d
*          - Remove limit on number of controllers
*          - Port to DMA mapping API
*          - Clean up interrupt handler registration
*          - Fix memory leaks
*          - Fix allocation of scsi host structs and private data
parent 2ffe5f2f
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Showing with 407 additions and 862 deletions
drivers/scsi/i60uscsi.c
View file @ 9f0b7b10
......@@ -66,12 +66,24 @@
* 12/19/98 bv - v1.02a Use spinlocks for 2.1.95 and up
* 01/31/99 bv - v1.02b Use mdelay instead of waitForPause
* 08/08/99 bv - v1.02c Use waitForPause again.
* 06/25/02 Doug Ledford <dledford@redhat.com> - v1.02d
* - Remove limit on number of controllers
* - Port to DMA mapping API
* - Clean up interrupt handler registration
* - Fix memory leaks
* - Fix allocation of scsi host structs and private data
**************************************************************************/
#include <linux/version.h>
#include <linux/jiffies.h>
#include <linux/module.h>
#include <asm/irq.h>
#include <linux/pci.h>
#include <linux/delay.h>
#include <asm/io.h>
#include "i60uscsi.h"
#include <linux/blkdev.h>
#include "scsi.h"
#include "hosts.h"
#include "inia100.h"
#define JIFFIES_TO_MS(t) ((t) * 1000 / HZ)
#define MS_TO_JIFFIES(j) ((j * HZ) / 1000)
......@@ -98,10 +110,7 @@ ORC_SCB *orc_alloc_scb(ORC_HCS * hcsp);
extern void inia100SCBPost(BYTE * pHcb, BYTE * pScb);
/* ---- INTERNAL VARIABLES ---- */
ORC_HCS orc_hcs[MAX_SUPPORTED_ADAPTERS];
static INIA100_ADPT_STRUCT inia100_adpt[MAX_SUPPORTED_ADAPTERS];
/* set by inia100_setup according to the command line */
int orc_num_scb;
static INIA100_ADPT_STRUCT *inia100_adpt;
NVRAM nvram, *nvramp = &nvram;
static UCHAR dftNvRam[64] =
......@@ -300,7 +309,7 @@ UCHAR get_NVRAM(ORC_HCS * hcsp, unsigned char address, unsigned char *pDataIn)
/***************************************************************************/
void orc_exec_scb(ORC_HCS * hcsp, ORC_SCB * scbp)
{
scbp->SCB_Status = SCB_POST;
scbp->SCB_Status = ORCSCB_POST;
ORC_WR(hcsp->HCS_Base + ORC_PQUEUE, scbp->SCB_ScbIdx);
return;
}
......@@ -439,17 +448,11 @@ void setup_SCBs(ORC_HCS * hcsp)
{
ORC_SCB *pVirScb;
int i;
UCHAR j;
ESCB *pVirEscb;
PVOID pPhysEscb;
PVOID tPhysEscb;
dma_addr_t pPhysEscb;
j = 0;
pVirScb = NULL;
tPhysEscb = (PVOID) NULL;
pPhysEscb = (PVOID) NULL;
/* Setup SCB HCS_Base and SCB Size registers */
ORC_WR(hcsp->HCS_Base + ORC_SCBSIZE, orc_num_scb); /* Total number of SCBs */
ORC_WR(hcsp->HCS_Base + ORC_SCBSIZE, ORC_MAXQUEUE); /* Total number of SCBs */
/* SCB HCS_Base address 0 */
ORC_WRLONG(hcsp->HCS_Base + ORC_SCBBASE0, hcsp->HCS_physScbArray);
/* SCB HCS_Base address 1 */
......@@ -459,8 +462,8 @@ void setup_SCBs(ORC_HCS * hcsp)
pVirScb = (ORC_SCB *) hcsp->HCS_virScbArray;
pVirEscb = (ESCB *) hcsp->HCS_virEscbArray;
for (i = 0; i < orc_num_scb; i++) {
pPhysEscb = (PVOID) (hcsp->HCS_physEscbArray + (sizeof(ESCB) * i));
for (i = 0; i < ORC_MAXQUEUE; i++) {
pPhysEscb = (hcsp->HCS_physEscbArray + (sizeof(ESCB) * i));
pVirScb->SCB_SGPAddr = (U32) pPhysEscb;
pVirScb->SCB_SensePAddr = (U32) pPhysEscb;
pVirScb->SCB_EScb = pVirEscb;
......@@ -534,7 +537,7 @@ int init_orchid(ORC_HCS * hcsp)
readBytep = (UCHAR *) & (nvramp->Target00Config);
for (i = 0; i < 16; readBytep++, i++) {
hcsp->TargetFlag[i] = *readBytep;
hcsp->MaximumTags[i] = orc_num_scb;
hcsp->MaximumTags[i] = ORC_MAXTAGS;
} /* for */
if (nvramp->SCSI0Config & NCC_BUSRESET) { /* Reset SCSI bus */
......@@ -578,7 +581,7 @@ int orc_reset_scsi_bus(ORC_HCS * pHCB)
Output : None.
Return : pSRB - Pointer to SCSI request block.
*****************************************************************************/
int orc_device_reset(ORC_HCS * pHCB, ULONG SCpnt, unsigned int target, unsigned int ResetFlags)
int orc_device_reset(ORC_HCS * pHCB, Scsi_Cmnd *SCpnt, unsigned int target, unsigned int ResetFlags)
{ /* I need Host Control Block Information */
ORC_SCB *pScb;
ESCB *pVirEscb;
......@@ -595,14 +598,14 @@ int orc_device_reset(ORC_HCS * pHCB, ULONG SCpnt, unsigned int target, unsigned
initAFlag(pHCB);
/* device reset */
for (i = 0; i < orc_num_scb; i++) {
for (i = 0; i < ORC_MAXQUEUE; i++) {
pVirEscb = pVirScb->SCB_EScb;
if ((pVirScb->SCB_Status) && (pVirEscb->SCB_Srb == (unsigned char *) SCpnt))
if ((pVirScb->SCB_Status) && (pVirEscb->SCB_Srb == SCpnt))
break;
pVirScb++;
}
if (i == orc_num_scb) {
if (i == ORC_MAXQUEUE) {
printk("Unable to Reset - No SCB Found\n");
spin_unlock_irqrestore(&(pHCB->BitAllocFlagLock), flags);
return (SCSI_RESET_NOT_RUNNING);
......@@ -624,7 +627,7 @@ int orc_device_reset(ORC_HCS * pHCB, ULONG SCpnt, unsigned int target, unsigned
pVirEscb->SCB_Srb = 0;
if (ResetFlags & SCSI_RESET_SYNCHRONOUS) {
pVirEscb->SCB_Srb = (unsigned char *) SCpnt;
pVirEscb->SCB_Srb = SCpnt;
}
orc_exec_scb(pHCB, pScb); /* Start execute SCB */
spin_unlock_irqrestore(&(pHCB->BitAllocFlagLock), flags);
......@@ -640,7 +643,6 @@ ORC_SCB *__orc_alloc_scb(ORC_HCS * hcsp)
ULONG idx;
UCHAR index;
UCHAR i;
ULONG flags;
Ch = hcsp->HCS_Index;
for (i = 0; i < 8; i++) {
......@@ -687,6 +689,29 @@ void orc_release_scb(ORC_HCS * hcsp, ORC_SCB * scbp)
}
/***************************************************************************/
void orc_release_dma(ORC_HCS * hcsp, ORC_SCB * scbp)
{
ESCB *pEScb;
Scsi_Cmnd *SCpnt;
struct scatterlist *pSrbSG;
ORC_SG *pSG;
pEScb = scbp->SCB_EScb;
SCpnt = pEScb->SCB_Srb;
pSG = (ORC_SG *) & pEScb->ESCB_SGList[0];
if (SCpnt->use_sg) {
pSrbSG = (struct scatterlist *)SCpnt->request_buffer;
pci_unmap_sg(hcsp->pdev, pSrbSG, SCpnt->use_sg,
scsi_to_pci_dma_dir(SCpnt->sc_data_direction));
} else {
pci_unmap_single(hcsp->pdev, (U32)SCpnt->host_scribble,
SCpnt->request_bufflen,
scsi_to_pci_dma_dir(SCpnt->sc_data_direction));
}
}
/*****************************************************************************
Function name : Addinia100_into_Adapter_table
Description : This function will scan PCI bus to get all Orchid card
......@@ -695,33 +720,29 @@ void orc_release_scb(ORC_HCS * hcsp, ORC_SCB * scbp)
Return : SUCCESSFUL - Successful scan
ohterwise - No drives founded
*****************************************************************************/
int Addinia100_into_Adapter_table(WORD wBIOS, WORD wBASE, BYTE bInterrupt,
BYTE bBus, BYTE bDevice)
int Addinia100_into_Adapter_table(WORD wBIOS, WORD wBASE, struct pci_dev *pdev,
int iAdapters)
{
unsigned int i, j;
for (i = 0; i < MAX_SUPPORTED_ADAPTERS; i++) {
for (i = 0; i < iAdapters; i++) {
if (inia100_adpt[i].ADPT_BIOS < wBIOS)
continue;
if (inia100_adpt[i].ADPT_BIOS == wBIOS) {
if (inia100_adpt[i].ADPT_BASE == wBASE) {
if (inia100_adpt[i].ADPT_Bus != 0xFF)
if (inia100_adpt[i].ADPT_pdev->bus->number != 0xFF)
return (FAILURE);
} else if (inia100_adpt[i].ADPT_BASE < wBASE)
continue;
}
for (j = MAX_SUPPORTED_ADAPTERS - 1; j > i; j--) {
for (j = iAdapters - 1; j > i; j--) {
inia100_adpt[j].ADPT_BASE = inia100_adpt[j - 1].ADPT_BASE;
inia100_adpt[j].ADPT_INTR = inia100_adpt[j - 1].ADPT_INTR;
inia100_adpt[j].ADPT_BIOS = inia100_adpt[j - 1].ADPT_BIOS;
inia100_adpt[j].ADPT_Bus = inia100_adpt[j - 1].ADPT_Bus;
inia100_adpt[j].ADPT_Device = inia100_adpt[j - 1].ADPT_Device;
inia100_adpt[j].ADPT_pdev = inia100_adpt[j - 1].ADPT_pdev;
}
inia100_adpt[i].ADPT_BASE = wBASE;
inia100_adpt[i].ADPT_INTR = bInterrupt;
inia100_adpt[i].ADPT_BIOS = wBIOS;
inia100_adpt[i].ADPT_Bus = bBus;
inia100_adpt[i].ADPT_Device = bDevice;
inia100_adpt[i].ADPT_pdev = pdev;
return (SUCCESSFUL);
}
return (FAILURE);
......@@ -733,20 +754,23 @@ int Addinia100_into_Adapter_table(WORD wBIOS, WORD wBASE, BYTE bInterrupt,
Description : This function will scan PCI bus to get all Orchid card
Input : None.
Output : None.
Return : SUCCESSFUL - Successful scan
ohterwise - No drives founded
Return : 0 on success, 1 on failure
*****************************************************************************/
void init_inia100Adapter_table(void)
int init_inia100Adapter_table(int iAdapters)
{
int i;
for (i = 0; i < MAX_SUPPORTED_ADAPTERS; i++) { /* Initialize adapter structure */
inia100_adpt = kmalloc(sizeof(INIA100_ADPT_STRUCT) * iAdapters,
GFP_KERNEL);
if(inia100_adpt == NULL)
return 1;
for (i = 0; i < iAdapters; i++) {/* Initialize adapter structure */
inia100_adpt[i].ADPT_BIOS = 0xffff;
inia100_adpt[i].ADPT_BASE = 0xffff;
inia100_adpt[i].ADPT_INTR = 0xff;
inia100_adpt[i].ADPT_Bus = 0xff;
inia100_adpt[i].ADPT_Device = 0xff;
inia100_adpt[i].ADPT_pdev = NULL;
}
return 0;
}
/*****************************************************************************
......@@ -760,7 +784,7 @@ void get_orcPCIConfig(ORC_HCS * pCurHcb, int ch_idx)
{
pCurHcb->HCS_Base = inia100_adpt[ch_idx].ADPT_BASE; /* Supply base address */
pCurHcb->HCS_BIOS = inia100_adpt[ch_idx].ADPT_BIOS; /* Supply BIOS address */
pCurHcb->HCS_Intr = inia100_adpt[ch_idx].ADPT_INTR; /* Supply interrupt line */
pCurHcb->HCS_Intr = inia100_adpt[ch_idx].ADPT_pdev->irq; /* Supply interrupt line */
return;
}
......@@ -805,7 +829,7 @@ int abort_SCB(ORC_HCS * hcsp, ORC_SCB * pScb)
Output : None.
Return : pSRB - Pointer to SCSI request block.
*****************************************************************************/
int orc_abort_srb(ORC_HCS * hcsp, ULONG SCpnt)
int orc_abort_srb(ORC_HCS * hcsp, Scsi_Cmnd *SCpnt)
{
ESCB *pVirEscb;
ORC_SCB *pVirScb;
......@@ -816,9 +840,9 @@ int orc_abort_srb(ORC_HCS * hcsp, ULONG SCpnt)
pVirScb = (ORC_SCB *) hcsp->HCS_virScbArray;
for (i = 0; i < orc_num_scb; i++, pVirScb++) {
for (i = 0; i < ORC_MAXQUEUE; i++, pVirScb++) {
pVirEscb = pVirScb->SCB_EScb;
if ((pVirScb->SCB_Status) && (pVirEscb->SCB_Srb == (unsigned char *) SCpnt)) {
if ((pVirScb->SCB_Status) && (pVirEscb->SCB_Srb == SCpnt)) {
if (pVirScb->SCB_TagMsg == 0) {
spin_unlock_irqrestore(&(hcsp->BitAllocFlagLock), flags);
return (SCSI_ABORT_BUSY);
......
drivers/scsi/i60uscsi.h deleted 100644 → 0
View file @ 2ffe5f2f
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drivers/scsi/inia100.c
View file @ 9f0b7b10
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drivers/scsi/inia100.h
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