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[SCSI] megaraid_sas: function pointer for disable interrupt 

This patch adds function pointer to invoke disable interrupt for
xscale and ppc IOP based controllers. Removes old implementation that checks
for controller type in megasas_disable_intr.

Signed-off-by: Sumant Patro <Sumant.Patro@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Sumant Patro 2006-10-03 12:52:12 -07:00 committed by James Bottomley
parent b1df99d943
commit b274cab779
2 changed files with 33 additions and 23 deletions
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55
drivers/scsi/megaraid/megaraid_sas.c
View File

@ -134,6 +134,19 @@ megasas_enable_intr_xscale(struct megasas_register_set __iomem * regs)
readl(&regs->outbound_intr_mask);
}
/**
* megasas_disable_intr_xscale -Disables interrupt
* @regs: MFI register set
*/
static inline void
megasas_disable_intr_xscale(struct megasas_register_set __iomem * regs)
{
u32 mask = 0x1f;
writel(mask, &regs->outbound_intr_mask);
/* Dummy readl to force pci flush */
readl(&regs->outbound_intr_mask);
}
/**
* megasas_read_fw_status_reg_xscale - returns the current FW status value
* @regs: MFI register set
@ -185,6 +198,7 @@ static struct megasas_instance_template megasas_instance_template_xscale = {
.fire_cmd = megasas_fire_cmd_xscale,
.enable_intr = megasas_enable_intr_xscale,
.disable_intr = megasas_disable_intr_xscale,
.clear_intr = megasas_clear_intr_xscale,
.read_fw_status_reg = megasas_read_fw_status_reg_xscale,
};
@ -214,6 +228,19 @@ megasas_enable_intr_ppc(struct megasas_register_set __iomem * regs)
readl(&regs->outbound_intr_mask);
}
/**
* megasas_disable_intr_ppc - Disable interrupt
* @regs: MFI register set
*/
static inline void
megasas_disable_intr_ppc(struct megasas_register_set __iomem * regs)
{
u32 mask = 0xFFFFFFFF;
writel(mask, &regs->outbound_intr_mask);
/* Dummy readl to force pci flush */
readl(&regs->outbound_intr_mask);
}
/**
* megasas_read_fw_status_reg_ppc - returns the current FW status value
* @regs: MFI register set
@ -265,6 +292,7 @@ static struct megasas_instance_template megasas_instance_template_ppc = {
.fire_cmd = megasas_fire_cmd_ppc,
.enable_intr = megasas_enable_intr_ppc,
.disable_intr = megasas_disable_intr_ppc,
.clear_intr = megasas_clear_intr_ppc,
.read_fw_status_reg = megasas_read_fw_status_reg_ppc,
};
@ -274,25 +302,6 @@ static struct megasas_instance_template megasas_instance_template_ppc = {
* specific to ppc (deviceid : 0x60) controllers
*/
/**
* megasas_disable_intr - Disables interrupts
* @regs: MFI register set
*/
static inline void
megasas_disable_intr(struct megasas_instance *instance)
{
u32 mask = 0x1f;
struct megasas_register_set __iomem *regs = instance->reg_set;
if(instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1078R)
mask = 0xffffffff;
writel(mask, &regs->outbound_intr_mask);
/* Dummy readl to force pci flush */
readl(&regs->outbound_intr_mask);
}
/**
* megasas_issue_polled - Issues a polling command
* @instance: Adapter soft state
@ -1293,7 +1302,7 @@ megasas_transition_to_ready(struct megasas_instance* instance)
/*
* Bring it to READY state; assuming max wait 10 secs
*/
megasas_disable_intr(instance);
instance->instancet->disable_intr(instance->reg_set);
writel(MFI_RESET_FLAGS, &instance->reg_set->inbound_doorbell);
max_wait = 10;
@ -1799,7 +1808,7 @@ static int megasas_init_mfi(struct megasas_instance *instance)
/*
* disable the intr before firing the init frame to FW
*/
megasas_disable_intr(instance);
instance->instancet->disable_intr(instance->reg_set);
/*
* Issue the init frame in polled mode
@ -2279,7 +2288,7 @@ megasas_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
megasas_mgmt_info.max_index--;
pci_set_drvdata(pdev, NULL);
megasas_disable_intr(instance);
instance->instancet->disable_intr(instance->reg_set);
free_irq(instance->pdev->irq, instance);
megasas_release_mfi(instance);
@ -2409,7 +2418,7 @@ static void megasas_detach_one(struct pci_dev *pdev)
pci_set_drvdata(instance->pdev, NULL);
megasas_disable_intr(instance);
instance->instancet->disable_intr(instance->reg_set);
free_irq(instance->pdev->irq, instance);

1
drivers/scsi/megaraid/megaraid_sas.h
View File

@ -1049,6 +1049,7 @@ struct megasas_evt_detail {
void (*fire_cmd)(dma_addr_t ,u32 ,struct megasas_register_set __iomem *);
void (*enable_intr)(struct megasas_register_set __iomem *) ;
void (*disable_intr)(struct megasas_register_set __iomem *);
int (*clear_intr)(struct megasas_register_set __iomem *);