diff options
| author | Sumit.Saxena@avagotech.com <Sumit.Saxena@avagotech.com> | 2015-01-05 20:06:13 +0530 |
|---|---|---|
| committer | Jiri Slaby <jslaby@suse.cz> | 2015-03-01 23:34:16 +0100 |
| commit | 5e1b3dc7688187c293c3005696b0a917b9286383 (patch) | |
| tree | 63a53fb5c1b5ac4159f8db4363092e95b1dfbb55 | |
| parent | 20f1c8780877115f2292d56ad209d1f17c611386 (diff) | |
| download | lwn-5e1b3dc7688187c293c3005696b0a917b9286383.tar.gz lwn-5e1b3dc7688187c293c3005696b0a917b9286383.zip | |
megaraid_sas: disable interrupt_mask before enabling hardware interrupts
commit c2ced1719a1b903350955a511e1666e6d05a7f5b upstream.
Update driver "mask_interrupts" before enable/disable hardware interrupt
in order to avoid missing interrupts because of "mask_interrupts" still
set to 1 and hardware interrupts are enabled.
Signed-off-by: Sumit Saxena <sumit.saxena@avagotech.com>
Signed-off-by: Chaitra Basappa <chaitra.basappa@avagotech.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas_fusion.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c index f6555921fd7a..a1f04e3b2a8f 100644 --- a/drivers/scsi/megaraid/megaraid_sas_fusion.c +++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c @@ -92,6 +92,8 @@ megasas_enable_intr_fusion(struct megasas_instance *instance) { struct megasas_register_set __iomem *regs; regs = instance->reg_set; + + instance->mask_interrupts = 0; /* For Thunderbolt/Invader also clear intr on enable */ writel(~0, ®s->outbound_intr_status); readl(®s->outbound_intr_status); @@ -100,7 +102,6 @@ megasas_enable_intr_fusion(struct megasas_instance *instance) /* Dummy readl to force pci flush */ readl(®s->outbound_intr_mask); - instance->mask_interrupts = 0; } /** |