diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/ipr.c | 21 | ||||
| -rw-r--r-- | drivers/scsi/ipr.h | 2 |
2 files changed, 17 insertions, 6 deletions
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c index dcad2389be3..0fedca6e273 100644 --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -105,6 +105,7 @@ static const struct ipr_chip_cfg_t ipr_chip_cfg[] = { { /* Gemstone, Citrine, Obsidian, and Obsidian-E */ .mailbox = 0x0042C, .cache_line_size = 0x20, + .clear_isr = 1, { .set_interrupt_mask_reg = 0x0022C, .clr_interrupt_mask_reg = 0x00230, @@ -127,6 +128,7 @@ static const struct ipr_chip_cfg_t ipr_chip_cfg[] = { { /* Snipe and Scamp */ .mailbox = 0x0052C, .cache_line_size = 0x20, + .clear_isr = 1, { .set_interrupt_mask_reg = 0x00288, .clr_interrupt_mask_reg = 0x0028C, @@ -149,6 +151,7 @@ static const struct ipr_chip_cfg_t ipr_chip_cfg[] = { { /* CRoC */ .mailbox = 0x00044, .cache_line_size = 0x20, + .clear_isr = 0, { .set_interrupt_mask_reg = 0x00010, .clr_interrupt_mask_reg = 0x00018, @@ -5049,12 +5052,14 @@ static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg, del_timer(&ioa_cfg->reset_cmd->timer); ipr_reset_ioa_job(ioa_cfg->reset_cmd); } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) { - if (ipr_debug && printk_ratelimit()) - dev_err(&ioa_cfg->pdev->dev, - "Spurious interrupt detected. 0x%08X\n", int_reg); - writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32); - int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); - return IRQ_NONE; + if (ioa_cfg->clear_isr) { + if (ipr_debug && printk_ratelimit()) + dev_err(&ioa_cfg->pdev->dev, + "Spurious interrupt detected. 0x%08X\n", int_reg); + writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32); + int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); + return IRQ_NONE; + } } else { if (int_reg & IPR_PCII_IOA_UNIT_CHECKED) ioa_cfg->ioa_unit_checked = 1; @@ -5154,6 +5159,9 @@ static irqreturn_t ipr_isr(int irq, void *devp) } } + if (ipr_cmd && !ioa_cfg->clear_isr) + break; + if (ipr_cmd != NULL) { /* Clear the PCI interrupt */ num_hrrq = 0; @@ -8769,6 +8777,7 @@ static int __devinit ipr_probe_ioa(struct pci_dev *pdev, /* set SIS 32 or SIS 64 */ ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0; ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg; + ioa_cfg->clear_isr = ioa_cfg->chip_cfg->clear_isr; if (ipr_transop_timeout) ioa_cfg->transop_timeout = ipr_transop_timeout; diff --git a/drivers/scsi/ipr.h b/drivers/scsi/ipr.h index f94eaee2ff1..40cbee72b83 100644 --- a/drivers/scsi/ipr.h +++ b/drivers/scsi/ipr.h @@ -1306,6 +1306,7 @@ struct ipr_interrupts { struct ipr_chip_cfg_t { u32 mailbox; u8 cache_line_size; + u8 clear_isr; struct ipr_interrupt_offsets regs; }; @@ -1388,6 +1389,7 @@ struct ipr_ioa_cfg { u8 sis64:1; u8 dump_timeout:1; u8 cfg_locked:1; + u8 clear_isr:1; u8 revid; |