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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.c17
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index fa2cb3582cfa..b6714da4d6e2 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -5887,7 +5887,12 @@ static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
ENTER;
spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
- _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa, IPR_SHUTDOWN_NONE);
+ if (ioa_cfg->needs_hard_reset) {
+ ioa_cfg->needs_hard_reset = 0;
+ ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
+ } else
+ _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
+ IPR_SHUTDOWN_NONE);
spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
@@ -6264,6 +6269,7 @@ static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
unsigned long ipr_regs_pci;
void __iomem *ipr_regs;
u32 rc = PCIBIOS_SUCCESSFUL;
+ volatile u32 mask, uproc;
ENTER;
@@ -6356,6 +6362,15 @@ static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
goto cleanup_nomem;
}
+ /*
+ * If HRRQ updated interrupt is not masked, or reset alert is set,
+ * the card is in an unknown state and needs a hard reset
+ */
+ mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
+ uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg);
+ if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
+ ioa_cfg->needs_hard_reset = 1;
+
ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
rc = request_irq(pdev->irq, ipr_isr, SA_SHIRQ, IPR_NAME, ioa_cfg);