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path: root/drivers/scsi/ipr.c
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Diffstat (limited to 'drivers/scsi/ipr.c')
-rw-r--r--drivers/scsi/ipr.c63
1 files changed, 30 insertions, 33 deletions
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index 5244282cd97f..82ea4a8226b0 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -4818,15 +4818,39 @@ static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd)
/**
* ipr_handle_other_interrupt - Handle "other" interrupts
* @ioa_cfg: ioa config struct
- * @int_reg: interrupt register
*
* Return value:
* IRQ_NONE / IRQ_HANDLED
**/
-static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
- volatile u32 int_reg)
+static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg)
{
irqreturn_t rc = IRQ_HANDLED;
+ volatile u32 int_reg, int_mask_reg;
+
+ int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
+ int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32) & ~int_mask_reg;
+
+ /* If an interrupt on the adapter did not occur, ignore it.
+ * Or in the case of SIS 64, check for a stage change interrupt.
+ */
+ if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) {
+ if (ioa_cfg->sis64) {
+ int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
+ int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
+ if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
+
+ /* clear stage change */
+ writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
+ int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
+ list_del(&ioa_cfg->reset_cmd->queue);
+ del_timer(&ioa_cfg->reset_cmd->timer);
+ ipr_reset_ioa_job(ioa_cfg->reset_cmd);
+ return IRQ_HANDLED;
+ }
+ }
+
+ return IRQ_NONE;
+ }
if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
/* Mask the interrupt */
@@ -4887,7 +4911,7 @@ static irqreturn_t ipr_isr(int irq, void *devp)
{
struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
unsigned long lock_flags = 0;
- volatile u32 int_reg, int_mask_reg;
+ volatile u32 int_reg;
u32 ioasc;
u16 cmd_index;
int num_hrrq = 0;
@@ -4902,33 +4926,6 @@ static irqreturn_t ipr_isr(int irq, void *devp)
return IRQ_NONE;
}
- int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
- int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32) & ~int_mask_reg;
-
- /* If an interrupt on the adapter did not occur, ignore it.
- * Or in the case of SIS 64, check for a stage change interrupt.
- */
- if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) {
- if (ioa_cfg->sis64) {
- int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
- int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
- if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
-
- /* clear stage change */
- writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
- int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
- list_del(&ioa_cfg->reset_cmd->queue);
- del_timer(&ioa_cfg->reset_cmd->timer);
- ipr_reset_ioa_job(ioa_cfg->reset_cmd);
- spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
- return IRQ_HANDLED;
- }
- }
-
- spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
- return IRQ_NONE;
- }
-
while (1) {
ipr_cmd = NULL;
@@ -4968,7 +4965,7 @@ static irqreturn_t ipr_isr(int irq, void *devp)
/* Clear the PCI interrupt */
do {
writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
- int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32) & ~int_mask_reg;
+ int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
} while (int_reg & IPR_PCII_HRRQ_UPDATED &&
num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
@@ -4983,7 +4980,7 @@ static irqreturn_t ipr_isr(int irq, void *devp)
}
if (unlikely(rc == IRQ_NONE))
- rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
+ rc = ipr_handle_other_interrupt(ioa_cfg);
spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
return rc;